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Virgin import of diffutils 2.8.7.

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Xin LI 2007-06-15 07:06:13 +00:00
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Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/vendor/diff/dist/; revision=170754
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Notes on the Free Translation Project
*************************************
Free software is going international! The Free Translation Project is
a way to get maintainers of free software, translators, and users all
together, so that will gradually become able to speak many languages.
A few packages already provide translations for their messages.
If you found this `ABOUT-NLS' file inside a distribution, you may
assume that the distributed package does use GNU `gettext' internally,
itself available at your nearest GNU archive site. But you do _not_
need to install GNU `gettext' prior to configuring, installing or using
this package with messages translated.
Installers will find here some useful hints. These notes also
explain how users should proceed for getting the programs to use the
available translations. They tell how people wanting to contribute and
work at translations should contact the appropriate team.
When reporting bugs in the `intl/' directory or bugs which may be
related to internationalization, you should tell about the version of
`gettext' which is used. The information can be found in the
`intl/VERSION' file, in internationalized packages.
Quick configuration advice
==========================
If you want to exploit the full power of internationalization, you
should configure it using
./configure --with-included-gettext
to force usage of internationalizing routines provided within this
package, despite the existence of internationalizing capabilities in the
operating system where this package is being installed. So far, only
the `gettext' implementation in the GNU C library version 2 provides as
many features (such as locale alias, message inheritance, automatic
charset conversion or plural form handling) as the implementation here.
It is also not possible to offer this additional functionality on top
of a `catgets' implementation. Future versions of GNU `gettext' will
very likely convey even more functionality. So it might be a good idea
to change to GNU `gettext' as soon as possible.
So you need _not_ provide this option if you are using GNU libc 2 or
you have installed a recent copy of the GNU gettext package with the
included `libintl'.
INSTALL Matters
===============
Some packages are "localizable" when properly installed; the programs
they contain can be made to speak your own native language. Most such
packages use GNU `gettext'. Other packages have their own ways to
internationalization, predating GNU `gettext'.
By default, this package will be installed to allow translation of
messages. It will automatically detect whether the system already
provides the GNU `gettext' functions. If not, the GNU `gettext' own
library will be used. This library is wholly contained within this
package, usually in the `intl/' subdirectory, so prior installation of
the GNU `gettext' package is _not_ required. Installers may use
special options at configuration time for changing the default
behaviour. The commands:
./configure --with-included-gettext
./configure --disable-nls
will respectively bypass any pre-existing `gettext' to use the
internationalizing routines provided within this package, or else,
_totally_ disable translation of messages.
When you already have GNU `gettext' installed on your system and run
configure without an option for your new package, `configure' will
probably detect the previously built and installed `libintl.a' file and
will decide to use this. This might be not what is desirable. You
should use the more recent version of the GNU `gettext' library. I.e.
if the file `intl/VERSION' shows that the library which comes with this
package is more recent, you should use
./configure --with-included-gettext
to prevent auto-detection.
The configuration process will not test for the `catgets' function
and therefore it will not be used. The reason is that even an
emulation of `gettext' on top of `catgets' could not provide all the
extensions of the GNU `gettext' library.
Internationalized packages have usually many `po/LL.po' files, where
LL gives an ISO 639 two-letter code identifying the language. Unless
translations have been forbidden at `configure' time by using the
`--disable-nls' switch, all available translations are installed
together with the package. However, the environment variable `LINGUAS'
may be set, prior to configuration, to limit the installed set.
`LINGUAS' should then contain a space separated list of two-letter
codes, stating which languages are allowed.
Using This Package
==================
As a user, if your language has been installed for this package, you
only have to set the `LANG' environment variable to the appropriate
`LL_CC' combination. Here `LL' is an ISO 639 two-letter language code,
and `CC' is an ISO 3166 two-letter country code. For example, let's
suppose that you speak German and live in Germany. At the shell
prompt, merely execute `setenv LANG de_DE' (in `csh'),
`export LANG; LANG=de_DE' (in `sh') or `export LANG=de_DE' (in `bash').
This can be done from your `.login' or `.profile' file, once and for
all.
You might think that the country code specification is redundant.
But in fact, some languages have dialects in different countries. For
example, `de_AT' is used for Austria, and `pt_BR' for Brazil. The
country code serves to distinguish the dialects.
The locale naming convention of `LL_CC', with `LL' denoting the
language and `CC' denoting the country, is the one use on systems based
on GNU libc. On other systems, some variations of this scheme are
used, such as `LL' or `LL_CC.ENCODING'. You can get the list of
locales supported by your system for your country by running the command
`locale -a | grep '^LL''.
Not all programs have translations for all languages. By default, an
English message is shown in place of a nonexistent translation. If you
understand other languages, you can set up a priority list of languages.
This is done through a different environment variable, called
`LANGUAGE'. GNU `gettext' gives preference to `LANGUAGE' over `LANG'
for the purpose of message handling, but you still need to have `LANG'
set to the primary language; this is required by other parts of the
system libraries. For example, some Swedish users who would rather
read translations in German than English for when Swedish is not
available, set `LANGUAGE' to `sv:de' while leaving `LANG' to `sv_SE'.
Special advice for Norwegian users: The language code for Norwegian
bokma*l changed from `no' to `nb' recently (in 2003). During the
transition period, while some message catalogs for this language are
installed under `nb' and some older ones under `no', it's recommended
for Norwegian users to set `LANGUAGE' to `nb:no' so that both newer and
older translations are used.
In the `LANGUAGE' environment variable, but not in the `LANG'
environment variable, `LL_CC' combinations can be abbreviated as `LL'
to denote the language's main dialect. For example, `de' is equivalent
to `de_DE' (German as spoken in Germany), and `pt' to `pt_PT'
(Portuguese as spoken in Portugal) in this context.
Translating Teams
=================
For the Free Translation Project to be a success, we need interested
people who like their own language and write it well, and who are also
able to synergize with other translators speaking the same language.
Each translation team has its own mailing list. The up-to-date list of
teams can be found at the Free Translation Project's homepage,
`http://www.iro.umontreal.ca/contrib/po/HTML/', in the "National teams"
area.
If you'd like to volunteer to _work_ at translating messages, you
should become a member of the translating team for your own language.
The subscribing address is _not_ the same as the list itself, it has
`-request' appended. For example, speakers of Swedish can send a
message to `sv-request@li.org', having this message body:
subscribe
Keep in mind that team members are expected to participate
_actively_ in translations, or at solving translational difficulties,
rather than merely lurking around. If your team does not exist yet and
you want to start one, or if you are unsure about what to do or how to
get started, please write to `translation@iro.umontreal.ca' to reach the
coordinator for all translator teams.
The English team is special. It works at improving and uniformizing
the terminology in use. Proven linguistic skill are praised more than
programming skill, here.
Available Packages
==================
Languages are not equally supported in all packages. The following
matrix shows the current state of internationalization, as of January
2004. The matrix shows, in regard of each package, for which languages
PO files have been submitted to translation coordination, with a
translation percentage of at least 50%.
Ready PO files af am ar az be bg bs ca cs da de el en en_GB eo es
+----------------------------------------------------+
a2ps | [] [] [] [] |
aegis | () |
ant-phone | () |
anubis | |
ap-utils | |
aspell | [] |
bash | [] [] [] [] |
batchelor | |
bfd | [] [] |
binutils | [] [] |
bison | [] [] [] |
bluez-pin | [] [] [] |
clisp | |
clisp | [] [] [] |
console-tools | [] [] |
coreutils | [] [] [] [] |
cpio | [] [] [] |
darkstat | [] () [] |
diffutils | [] [] [] [] [] [] [] |
e2fsprogs | [] [] [] |
enscript | [] [] [] [] |
error | [] [] [] [] [] |
fetchmail | [] () [] [] [] [] |
fileutils | [] [] [] |
findutils | [] [] [] [] [] [] [] |
flex | [] [] [] [] |
fslint | |
gas | [] |
gawk | [] [] [] [] |
gbiff | [] |
gcal | [] |
gcc | [] [] |
gettext | [] [] [] [] [] |
gettext-examples | [] [] [] [] |
gettext-runtime | [] [] [] [] [] |
gettext-tools | [] [] [] |
gimp-print | [] [] [] [] [] |
gliv | |
glunarclock | [] [] |
gnubiff | [] |
gnucash | [] () [] [] |
gnucash-glossary | [] () [] |
gnupg | [] () [] [] [] [] |
gpe-aerial | [] |
gpe-beam | [] [] |
gpe-calendar | [] [] |
gpe-clock | [] [] |
gpe-conf | [] [] |
gpe-contacts | [] [] |
gpe-edit | [] |
gpe-go | [] |
gpe-login | [] [] |
gpe-ownerinfo | [] [] |
gpe-sketchbook | [] [] |
gpe-su | [] [] |
gpe-taskmanager | [] [] |
gpe-timesheet | [] |
gpe-today | [] [] |
gpe-todo | [] [] |
gphoto2 | [] [] [] [] |
gprof | [] [] [] |
gpsdrive | () () () |
gramadoir | [] |
grep | [] [] [] [] [] [] |
gretl | [] |
gtick | [] () |
hello | [] [] [] [] [] [] |
id-utils | [] [] |
indent | [] [] [] [] |
iso_3166 | [] [] [] [] [] [] [] [] [] [] |
iso_3166_1 | [] [] [] [] [] [] |
iso_3166_2 | |
iso_3166_3 | [] |
iso_4217 | [] [] [] [] |
iso_639 | |
jpilot | [] [] [] |
jtag | |
jwhois | [] |
kbd | [] [] [] [] [] |
latrine | () |
ld | [] [] |
libc | [] [] [] [] [] [] |
libgpewidget | [] [] |
libiconv | [] [] [] [] [] |
lifelines | [] () |
lilypond | [] |
lingoteach | |
lingoteach_lessons | () () |
lynx | [] [] [] [] |
m4 | [] [] [] [] |
mailutils | [] [] |
make | [] [] [] |
man-db | [] () [] [] () |
minicom | [] [] [] |
mysecretdiary | [] [] [] |
nano | [] () [] [] [] |
nano_1_0 | [] () [] [] [] |
opcodes | [] |
parted | [] [] [] [] [] |
ptx | [] [] [] [] [] |
python | |
radius | [] |
recode | [] [] [] [] [] [] [] |
rpm | [] [] |
screem | |
scrollkeeper | [] [] [] [] [] [] |
sed | [] [] [] [] [] [] |
sh-utils | [] [] [] |
shared-mime-info | |
sharutils | [] [] [] [] [] [] |
silky | () |
skencil | [] () [] |
sketch | [] () [] |
soundtracker | [] [] [] |
sp | [] |
tar | [] [] [] [] |
texinfo | [] [] [] |
textutils | [] [] [] [] |
tin | () () |
tp-robot | |
tuxpaint | [] [] [] [] [] [] [] |
unicode-han-tra... | |
unicode-transla... | |
util-linux | [] [] [] [] [] |
vorbis-tools | [] [] [] [] |
wastesedge | () |
wdiff | [] [] [] [] |
wget | [] [] [] [] [] [] |
xchat | [] [] [] [] |
xfree86_xkb_xml | [] [] |
xpad | [] |
+----------------------------------------------------+
af am ar az be bg bs ca cs da de el en en_GB eo es
4 0 0 1 9 4 1 40 41 60 78 17 1 5 13 68
et eu fa fi fr ga gl he hr hu id is it ja ko lg
+-------------------------------------------------+
a2ps | [] [] [] () () |
aegis | |
ant-phone | [] |
anubis | [] |
ap-utils | [] |
aspell | [] [] |
bash | [] [] |
batchelor | [] [] |
bfd | [] |
binutils | [] [] |
bison | [] [] [] [] |
bluez-pin | [] [] [] [] [] |
clisp | |
clisp | [] |
console-tools | |
coreutils | [] [] [] [] [] [] |
cpio | [] [] [] [] |
darkstat | () [] [] [] |
diffutils | [] [] [] [] [] [] [] |
e2fsprogs | |
enscript | [] [] |
error | [] [] [] [] |
fetchmail | [] |
fileutils | [] [] [] [] [] [] |
findutils | [] [] [] [] [] [] [] [] [] [] [] |
flex | [] [] [] |
fslint | [] |
gas | [] |
gawk | [] [] [] |
gbiff | [] |
gcal | [] |
gcc | [] |
gettext | [] [] [] |
gettext-examples | [] [] |
gettext-runtime | [] [] [] [] [] |
gettext-tools | [] [] [] |
gimp-print | [] [] |
gliv | () |
glunarclock | [] [] [] [] |
gnubiff | [] |
gnucash | () [] |
gnucash-glossary | [] |
gnupg | [] [] [] [] [] [] [] |
gpe-aerial | [] |
gpe-beam | [] |
gpe-calendar | [] [] [] |
gpe-clock | [] |
gpe-conf | [] |
gpe-contacts | [] [] |
gpe-edit | [] [] |
gpe-go | [] |
gpe-login | [] [] |
gpe-ownerinfo | [] [] [] |
gpe-sketchbook | [] |
gpe-su | [] |
gpe-taskmanager | [] |
gpe-timesheet | [] [] [] |
gpe-today | [] [] |
gpe-todo | [] [] |
gphoto2 | [] [] [] |
gprof | [] [] |
gpsdrive | () () () |
gramadoir | [] [] |
grep | [] [] [] [] [] [] [] [] [] [] [] |
gretl | [] [] |
gtick | [] [] [] |
hello | [] [] [] [] [] [] [] [] [] [] [] [] [] |
id-utils | [] [] [] [] |
indent | [] [] [] [] [] [] [] [] [] |
iso_3166 | [] [] [] [] [] [] [] |
iso_3166_1 | [] [] [] [] [] |
iso_3166_2 | |
iso_3166_3 | |
iso_4217 | [] [] [] [] [] [] |
iso_639 | |
jpilot | [] () |
jtag | [] |
jwhois | [] [] [] [] |
kbd | [] |
latrine | [] |
ld | [] |
libc | [] [] [] [] [] [] |
libgpewidget | [] [] [] [] |
libiconv | [] [] [] [] [] [] [] [] [] |
lifelines | () |
lilypond | [] |
lingoteach | [] [] |
lingoteach_lessons | |
lynx | [] [] [] [] |
m4 | [] [] [] [] |
mailutils | |
make | [] [] [] [] [] [] |
man-db | () () |
minicom | [] [] [] [] |
mysecretdiary | [] [] |
nano | [] [] [] [] |
nano_1_0 | [] [] [] [] |
opcodes | [] |
parted | [] [] [] |
ptx | [] [] [] [] [] [] [] |
python | |
radius | [] |
recode | [] [] [] [] [] [] |
rpm | [] [] |
screem | |
scrollkeeper | [] |
sed | [] [] [] [] [] [] [] [] [] |
sh-utils | [] [] [] [] [] [] [] |
shared-mime-info | [] [] [] |
sharutils | [] [] [] [] [] |
silky | () [] () () |
skencil | [] |
sketch | [] |
soundtracker | [] [] |
sp | [] () |
tar | [] [] [] [] [] [] [] [] [] |
texinfo | [] [] [] [] |
textutils | [] [] [] [] [] [] |
tin | [] () |
tp-robot | [] |
tuxpaint | [] [] [] [] [] [] [] [] [] |
unicode-han-tra... | |
unicode-transla... | [] [] |
util-linux | [] [] [] [] () [] |
vorbis-tools | [] |
wastesedge | () |
wdiff | [] [] [] [] [] [] |
wget | [] [] [] [] [] [] [] |
xchat | [] [] [] |
xfree86_xkb_xml | [] [] |
xpad | [] [] |
+-------------------------------------------------+
et eu fa fi fr ga gl he hr hu id is it ja ko lg
22 2 1 26 106 28 24 8 10 41 33 1 26 33 12 0
lt lv mk mn ms mt nb nl nn no nso pl pt pt_BR ro ru
+-----------------------------------------------------+
a2ps | [] [] () () [] [] [] |
aegis | () () () |
ant-phone | [] [] |
anubis | [] [] [] [] [] [] |
ap-utils | [] () [] |
aspell | [] |
bash | [] [] [] |
batchelor | [] |
bfd | [] |
binutils | [] |
bison | [] [] [] [] [] |
bluez-pin | [] [] [] |
clisp | |
clisp | [] |
console-tools | [] |
coreutils | [] [] |
cpio | [] [] [] [] [] |
darkstat | [] [] [] [] |
diffutils | [] [] [] [] [] [] |
e2fsprogs | [] |
enscript | [] [] [] [] |
error | [] [] [] |
fetchmail | [] [] () [] |
fileutils | [] [] [] |
findutils | [] [] [] [] [] |
flex | [] [] [] [] |
fslint | [] [] |
gas | |
gawk | [] [] [] |
gbiff | [] [] |
gcal | |
gcc | |
gettext | [] [] [] |
gettext-examples | [] [] [] |
gettext-runtime | [] [] [] [] |
gettext-tools | [] [] |
gimp-print | [] |
gliv | [] [] [] |
glunarclock | [] [] [] [] |
gnubiff | [] |
gnucash | [] [] () [] |
gnucash-glossary | [] [] |
gnupg | [] |
gpe-aerial | [] [] [] [] |
gpe-beam | [] [] [] [] |
gpe-calendar | [] [] [] [] |
gpe-clock | [] [] [] [] |
gpe-conf | [] [] [] [] |
gpe-contacts | [] [] [] [] |
gpe-edit | [] [] [] [] |
gpe-go | [] [] [] |
gpe-login | [] [] [] [] |
gpe-ownerinfo | [] [] [] [] |
gpe-sketchbook | [] [] [] [] |
gpe-su | [] [] [] [] |
gpe-taskmanager | [] [] [] [] |
gpe-timesheet | [] [] [] [] |
gpe-today | [] [] [] [] |
gpe-todo | [] [] [] [] |
gphoto2 | [] |
gprof | [] [] |
gpsdrive | () () [] |
gramadoir | () [] |
grep | [] [] [] [] [] |
gretl | |
gtick | [] [] [] |
hello | [] [] [] [] [] [] [] [] [] [] |
id-utils | [] [] [] [] |
indent | [] [] [] [] |
iso_3166 | [] [] [] |
iso_3166_1 | [] [] |
iso_3166_2 | |
iso_3166_3 | [] |
iso_4217 | [] [] [] [] [] [] [] [] |
iso_639 | [] |
jpilot | () () |
jtag | |
jwhois | [] [] [] [] () |
kbd | [] [] [] |
latrine | [] |
ld | |
libc | [] [] [] [] |
libgpewidget | [] [] [] |
libiconv | [] [] [] [] [] |
lifelines | |
lilypond | |
lingoteach | |
lingoteach_lessons | |
lynx | [] [] [] |
m4 | [] [] [] [] [] |
mailutils | [] [] [] |
make | [] [] [] [] |
man-db | [] |
minicom | [] [] [] [] |
mysecretdiary | [] [] [] |
nano | [] [] [] [] [] |
nano_1_0 | [] [] [] [] [] [] |
opcodes | [] [] |
parted | [] [] [] [] |
ptx | [] [] [] [] [] [] [] [] |
python | |
radius | [] [] |
recode | [] [] [] [] |
rpm | [] [] [] |
screem | |
scrollkeeper | [] [] [] [] [] |
sed | [] [] [] |
sh-utils | [] [] |
shared-mime-info | [] [] |
sharutils | [] [] |
silky | () |
skencil | [] [] |
sketch | [] [] |
soundtracker | |
sp | |
tar | [] [] [] [] [] [] |
texinfo | [] [] [] [] |
textutils | [] [] |
tin | |
tp-robot | [] |
tuxpaint | [] [] [] [] [] [] [] [] |
unicode-han-tra... | |
unicode-transla... | |
util-linux | [] [] [] |
vorbis-tools | [] [] [] |
wastesedge | |
wdiff | [] [] [] [] [] |
wget | [] [] [] |
xchat | [] [] [] |
xfree86_xkb_xml | [] [] |
xpad | [] [] |
+-----------------------------------------------------+
lt lv mk mn ms mt nb nl nn no nso pl pt pt_BR ro ru
1 2 0 3 12 0 10 69 6 7 1 40 26 36 76 63
sk sl sr sv ta th tr uk ven vi wa xh zh_CN zh_TW zu
+-----------------------------------------------------+
a2ps | [] [] [] [] | 16
aegis | | 0
ant-phone | | 3
anubis | [] [] | 9
ap-utils | () | 3
aspell | | 4
bash | | 9
batchelor | | 3
bfd | [] [] | 6
binutils | [] [] [] | 8
bison | [] [] | 14
bluez-pin | [] [] [] | 14
clisp | | 0
clisp | | 5
console-tools | | 3
coreutils | [] [] [] [] | 16
cpio | [] [] | 14
darkstat | [] [] [] () () | 12
diffutils | [] [] [] | 23
e2fsprogs | [] [] | 6
enscript | [] [] | 12
error | [] [] [] | 15
fetchmail | [] [] | 11
fileutils | [] [] [] [] [] | 17
findutils | [] [] [] [] [] [] | 29
flex | [] [] | 13
fslint | | 3
gas | [] | 3
gawk | [] [] | 12
gbiff | | 4
gcal | [] [] | 4
gcc | [] | 4
gettext | [] [] [] [] [] | 16
gettext-examples | [] [] [] [] [] | 14
gettext-runtime | [] [] [] [] [] [] [] [] | 22
gettext-tools | [] [] [] [] [] [] | 14
gimp-print | [] [] | 10
gliv | | 3
glunarclock | [] [] [] | 13
gnubiff | | 3
gnucash | [] [] | 9
gnucash-glossary | [] [] [] | 8
gnupg | [] [] [] [] | 17
gpe-aerial | [] | 7
gpe-beam | [] | 8
gpe-calendar | [] [] [] [] | 13
gpe-clock | [] [] [] | 10
gpe-conf | [] [] | 9
gpe-contacts | [] [] [] | 11
gpe-edit | [] [] [] [] [] | 12
gpe-go | | 5
gpe-login | [] [] [] [] [] | 13
gpe-ownerinfo | [] [] [] [] | 13
gpe-sketchbook | [] [] | 9
gpe-su | [] [] [] | 10
gpe-taskmanager | [] [] [] | 10
gpe-timesheet | [] [] [] [] | 12
gpe-today | [] [] [] [] [] | 13
gpe-todo | [] [] [] [] | 12
gphoto2 | [] [] [] | 11
gprof | [] [] | 9
gpsdrive | [] [] | 3
gramadoir | [] | 5
grep | [] [] [] [] | 26
gretl | | 3
gtick | | 7
hello | [] [] [] [] [] | 34
id-utils | [] [] | 12
indent | [] [] [] [] | 21
iso_3166 | [] [] [] [] [] [] [] | 27
iso_3166_1 | [] [] [] | 16
iso_3166_2 | | 0
iso_3166_3 | | 2
iso_4217 | [] [] [] [] [] [] | 24
iso_639 | | 1
jpilot | [] [] [] [] [] | 9
jtag | [] | 2
jwhois | () [] [] | 11
kbd | [] [] | 11
latrine | | 2
ld | [] [] | 5
libc | [] [] [] [] | 20
libgpewidget | [] [] [] [] | 13
libiconv | [] [] [] [] [] [] [] [] | 27
lifelines | [] | 2
lilypond | [] | 3
lingoteach | | 2
lingoteach_lessons | () | 0
lynx | [] [] [] | 14
m4 | [] [] | 15
mailutils | | 5
make | [] [] [] | 16
man-db | [] | 5
minicom | | 11
mysecretdiary | [] [] | 10
nano | [] [] [] [] | 17
nano_1_0 | [] [] [] | 17
opcodes | [] [] | 6
parted | [] [] [] | 15
ptx | [] [] | 22
python | | 0
radius | | 4
recode | [] [] [] | 20
rpm | [] [] | 9
screem | [] [] | 2
scrollkeeper | [] [] [] | 15
sed | [] [] [] [] [] [] | 24
sh-utils | [] [] | 14
shared-mime-info | [] [] | 7
sharutils | [] [] [] [] | 17
silky | () | 3
skencil | [] | 6
sketch | [] | 6
soundtracker | [] [] | 7
sp | [] | 3
tar | [] [] [] [] [] | 24
texinfo | [] [] [] | 14
textutils | [] [] [] [] | 16
tin | | 1
tp-robot | | 2
tuxpaint | [] [] [] [] [] | 29
unicode-han-tra... | | 0
unicode-transla... | | 2
util-linux | [] [] | 15
vorbis-tools | | 8
wastesedge | | 0
wdiff | [] [] [] | 18
wget | [] [] [] [] [] [] [] [] | 24
xchat | [] [] [] [] [] | 15
xfree86_xkb_xml | [] [] [] [] [] | 11
xpad | | 5
+-----------------------------------------------------+
63 teams sk sl sr sv ta th tr uk ven vi wa xh zh_CN zh_TW zu
131 domains 47 19 28 83 0 0 59 13 1 1 11 0 22 22 0 1373
Some counters in the preceding matrix are higher than the number of
visible blocks let us expect. This is because a few extra PO files are
used for implementing regional variants of languages, or language
dialects.
For a PO file in the matrix above to be effective, the package to
which it applies should also have been internationalized and
distributed as such by its maintainer. There might be an observable
lag between the mere existence a PO file and its wide availability in a
distribution.
If January 2004 seems to be old, you may fetch a more recent copy of
this `ABOUT-NLS' file on most GNU archive sites. The most up-to-date
matrix with full percentage details can be found at
`http://www.iro.umontreal.ca/contrib/po/HTML/matrix.html'.
Using `gettext' in new packages
===============================
If you are writing a freely available program and want to
internationalize it you are welcome to use GNU `gettext' in your
package. Of course you have to respect the GNU Library General Public
License which covers the use of the GNU `gettext' library. This means
in particular that even non-free programs can use `libintl' as a shared
library, whereas only free software can use `libintl' as a static
library or use modified versions of `libintl'.
Once the sources are changed appropriately and the setup can handle
the use of `gettext' the only thing missing are the translations. The
Free Translation Project is also available for packages which are not
developed inside the GNU project. Therefore the information given above
applies also for every other Free Software Project. Contact
`translation@iro.umontreal.ca' to make the `.pot' files available to
the translation teams.

112
contrib/diff/AUTHORS Normal file
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@ -0,0 +1,112 @@
Authors of GNU diffutils.
Copyright 2001 Free Software Foundation, Inc.
This file is part of GNU diffutils.
GNU diffutils is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU diffutils is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU diffutils; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
The following contributions warranted legal paper exchanges with the
Free Software Foundation. Also see files ChangeLog and THANKS.
DIFFUTILS Leonard H. Tower Jr. US 1949 1987-03-09
Assigns diff (diff.c, initial version).
DIFFUTILS Torbjorn Granlund Sweden 1961 1988-01-11
Assigns cmp.
tege@matematik.su.se
DIFFUTILS Mike Haertel US 1967 1988-09-16
Assigns changes to diff.
DIFFUTILS David S. Hayes US ? 1988-01-12
Assigns changes to diff.
DIFFUTILS Randall Smith US 1964 1988-09-21
Assigns diff3.
DIFFUTILS Richard Stallman US 1953 1988-01-15
Assigns changes to GNU Diff.
DIFFUTILS F. Thomas May US 1965 1989-08-22
Assigns changes to diff (for -D).
DIFFUTILS Optimal Solutions, Inc. 1989-08-14
Disclaims changes by Thomas May to diff.
DIFFUTILS Wayne Davison 1990-09-10
Disclaims changes to diff.
DIFFUTILS Digital Research Inc. 1990-09-13
Disclaims changes by Wayne Davison to diff.
DIFFUTILS Paul Eggert 1990-03-16
Disclaims changes to diff.
eggert@twinsun.com
DIFFUTILS Paul Eggert 1990-08-14
Disclaims changes to GNU Diff.
eggert@twinsun.com
DIFFUTILS Twin Sun Inc. 1990-03-16
Disclaims changes to GNU Diff by Paul Eggert.
DIFFUTILS Twin Sun Inc. 1990-08-14
Disclaims changes to GNU Diff by Paul Eggert.
DIFFUTILS Chip Rosenthal US 1959 1990-03-06
Assigns changes to diff.
chip@chinacat.Unicom.COM
DIFFUTILS Unicom Systems Development 1990-03-06
Disclaims changes by Chip Rosenthal to diff.
GCC DIFFUTILS Paul Eggert and Twin Sun Inc. 1992-03-11
Disclaims changes by Paul Eggert to gcc and diff.
eggert@twinsun.com
DIFF Wayne Davison 1993-06-20
Disclaims diffcvt.c.
DIFFUTILS Francois Pinard Canada 1949 1993-01-15
Assigns wdiff and future changes submitted to the FSF.
pinard@iro.umontreal.ca
DIFFUTILS Patrick D'Cruze Australia 1971 1994-11-10
Assigns changes (makefile.in, analyze.c, cmp.c, error.c, diff.c,
diff3.c, getopt.c, getopt1.c, regex.c, sdiff.c, util.c, xmalloc.c;
new file: language.++)
DIFFUTILS Paul R. Eggert US 1954 1997-04-07
Assigns past and future changes.
eggert@twinsun.com
DIFFUTILS Paul R. Eggert US 1954 1997-04-07
Assigns past and future changes to manual.
eggert@twinsun.com
ANY DIFFUTILS GNATS Cyclic Software 1997-11-11
Assigns past and future works (work for hire by Tim Pierce (diffutils) and
Abe Feldman (GNATS)).
kingdon@cyclic.com
WEBPAGES Gregory B. Harvey Canada 1976 1998-02-14
Assigns web pages describing GNU Diffutils and future changes.
DIFFUTILS Olga Nikulin Russia 1965 2001-01-11
Assigns changes to diff. (diffutils-2.7.2/analyze.c, context.c, diff.[ch],
ed.c, ifdef.c, io.c, normal.c, side.c, util.c)
onikulin@yahoo.com

11
contrib/diff/COPYING
View File

@ -2,7 +2,7 @@
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
675 Mass Ave, Cambridge, MA 02139, USA
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
@ -279,7 +279,7 @@ POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
Appendix: How to Apply These Terms to Your New Programs
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
@ -291,7 +291,7 @@ convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) 19yy <name of author>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -305,14 +305,15 @@ the "copyright" line and a pointer to where the full notice is found.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) 19yy name of author
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.

2142
contrib/diff/ChangeLog
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File diff suppressed because it is too large Load Diff

23
contrib/diff/Makefile.am Normal file
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@ -0,0 +1,23 @@
# Main Automakefile for GNU diffutils.
# Copyright (C) 2001, 2002, 2004 Free Software Foundation, Inc.
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2, or (at your option)
## any later version.
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
## 02111-1307, USA.
EXTRA_DIST = bootstrap exgettext
SUBDIRS = doc lib m4 ms src man po
ACLOCAL_AMFLAGS = -I m4

124
contrib/diff/NEWS
View File

@ -1,6 +1,102 @@
Version 2.8.7 contains no user-visible changes.
User-visible changes in version 2.8.6:
* New diff3 option --strip-trailing-cr.
* With -N and -P, inaccessible empty regular files (the kind of files
that 'patch' creates to indicate nonexistent backups) are now
treated as nonexistent when they are in the 'backup' file position.
* If multiple SKIP values are given to cmp, e.g., `cmp -i 10 -i 20',
cmp now uses the maximal value instead of the last one.
* diff now omits the ".000000000" on hosts that do not support
fractional time stamps.
Version 2.8.5 was not publicly released.
User-visible changes in version 2.8.4:
* Diff now simply prints "Files A and B differ" instead of "Binary
files A and B differ". The message is output if either A or B
appears to be a binary file, and the old wording was misleading
because it implied that both files are binary, which is not
necessarily the case.
User-visible changes in version 2.8.3:
* New locale: en_US.
User-visible changes in version 2.8.2:
* New diff and sdiff option:
--tabsize=COLUMNS
* If --ignore-space-change or --ignore-all-space is also specified,
--ignore-blank-lines now considers lines to be empty if they contain
only white space.
* More platforms now handle multibyte characters correctly when
excluding files by name (diff -x and -X).
* New locales: hu, pt_BR.
User-visible changes in version 2.8.1:
* Documentation fixes.
User-visible changes in version 2.8:
* cmp and diff now conform to POSIX 1003.1-2001 (IEEE Std 1003.1-2001)
if the underlying system conforms to POSIX and if the _POSIX2_VERSION
environment variable is set to 200112. Conformance removes support
for `diff -NUM', where NUM is a number. Use -C NUM or -U NUM instead.
* cmp now supports trailing operands SKIP1 and SKIP2, like BSD cmp.
* cmp -i or --ignore-initial now accepts SKIP1:SKIP2 option value.
* New cmp option: -n or --bytes.
* cmp's old -c or --print-chars option has been renamed;
use -b or --print-bytes instead.
* cmp now outputs "byte" rather than "char" outside the POSIX locale.
* cmp -l's index column width now adjusts to fit larger (or smaller) files.
* cmp -l -s and cmp -s -l are not allowed. Use cmp -s or cmp -l instead.
* diff uses ISO 8601 style time stamps for output times (e.g. "2001-11-23
16:44:36.875702460 -0800") unless in the C or POSIX locale and the
-c style is specified.
* diff's -I and -F options use the regexp syntax of grep, not of Emacs.
* diff now accepts multiple context arguments, and uses their maximum value.
* New diff and sdiff options:
-E --ignore-tab-expansion
--strip-trailing-cr
* New diff options:
--from-file=FILE, --to-file=FILE
--ignore-file-name-case
--no-ignore-file-name-case
* New diff3 and sdiff option:
--diff-program=PROGRAM
* The following diff options are still accepted, but are no longer documented.
They may be withdrawn in future releases.
-h (omit; it has no effect)
-H (use --speed-large-files instead)
-L (use --label instead)
-P (use --unidirectional-new-file instead)
--inhibit-hunk-merge (omit; it has no effect)
* Recursive diffs now sort file names according to the LC_COLLATE locale
category if possible, instead of using native byte comparison.
* Recursive diffs now detect and report directory loops.
* Diff printf specs can now use the "0" and "'" flags.
* The new sdiff interactive command `ed' precedes each version with a header.
* On 64-bit hosts, files larger than 2 GB can be compared.
* Some internationalization support has been added, but multibyte locales
are still not completely supported yet.
* Some diagnostics have been reworded slightly for consistency.
Also, `diff -D FOO' now outputs `/* ! FOO */' instead of `/* not FOO */'.
* The `patch' part of the manual now describes `patch' version 2.5.4.
* Man pages are now distributed and installed.
* There is support for DJGPP; see the 'ms' subdirectory and the files
m4/dos.m4 and */setmode.*.
User-visible changes in version 2.7:
* New diff option: --binary (useful only on non-Posix hosts)
* New diff option: --binary (useful only on non-POSIX hosts)
* diff -b and -w now ignore line incompleteness; -B no longer does this.
* cmp -c now uses locale to decide which output characters to quote.
* Help and version messages are reorganized.
@ -64,8 +160,8 @@ User-visible changes in version 2.4:
* The format spec %0 introduced in version 2.1 has been removed, since it
is incompatible with printf specs like %02d. To represent a null char,
use %c'\0' instead.
* cmp and diff now conform to Posix.2 (ISO/IEC 9945-2:1993)
if the underlying system conforms to Posix:
* cmp and diff now conform to POSIX 1003.2-1992 (ISO/IEC 9945-2:1993)
if the underlying system conforms to POSIX:
- Some messages' wordings are changed in minor ways.
- ``White space'' is now whatever C's `isspace' says it is.
- When comparing directories, if `diff' finds a file that is not a regular
@ -124,3 +220,25 @@ User-visible changes in version 2.0:
* Add long-named equivalents for other diff3 options.
* diff options -F (--show-function-line) and -I (--ignore-matching-lines)
can now be given more than once.
Copyright (C) 1993, 1994, 1998, 2001, 2002, 2004 Free Software
Foundation, Inc.
This file is part of GNU Diffutils.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that they will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.

70
contrib/diff/README
View File

@ -1,9 +1,69 @@
README for GNU DIFF
This directory contains the GNU diff, diff3, sdiff, and cmp utilities.
Their features are a superset of the Unix features and they are
significantly faster. cmp has been moved here from the GNU textutils.
significantly faster.
See the file COPYING for copying conditions.
See the file diff.texi (or diff.info*) for documentation.
See the file INSTALL for compilation and installation instructions.
Please see the file COPYING for copying conditions.
Report bugs to bug-gnu-utils@prep.ai.mit.edu
Please see the file doc/version.texi for version information.
Please see the file doc/diff.texi (or doc/diff.info) for documentation
that can be printed with TeX, or read with the `info' program or with
Emacs's `M-x info'. Brief man pages are in man/*, but they are no
substitute for the documentation.
Please see the file ABOUT-NLS for notes about translations.
Please see the file INSTALL for generic compilation and installation
instructions. Briefly, you can run "./configure; make install". The
command "./configure --help" lists the supported --enable and --with
options.
If you have a problem with internationalization, you might be able to
work around it as described in ABOUT-NLS by invoking `./configure
--disable-nls'. Many of the problems arise from dynamic linking
issues on non-GNU platforms (e.g. with the iconv library). Such
problems tend to be shared by other GNU applications on these
platforms, and can usually be fixed by carefully tweaking your non-GNU
installation. If you have an older version of libiconv, please
upgrade to the latest one; see <ftp://ftp.gnu.org/gnu/libiconv/>. If
the problem seems isolated to diffutils, though, please report a bug.
This program requires a Standard C compiler (C89 or later). If you
have a nonstandard compiler, please install GCC first.
If you make changes to the source code, you may need appropriate
versions of GNU build tools to regenerate the intermediate files. The
following versions were used to generate the intermediate files in
this distribution:
* Autoconf 2.59 <ftp://ftp.gnu.org/gnu/autoconf/autoconf-2.59.tar.gz>
* Automake 1.8.3 <ftp://ftp.gnu.org/gnu/automake/automake-1.8.3.tar.gz>
* gettext 0.14.1 <ftp://ftp.gnu.org/gnu/gettext/gettext-0.14.1.tar.gz>
* help2man 1.33 <ftp://ftp.gnu.org/gnu/help2man/help2man-1.33.1.tar.gz>
* Texinfo 4.7 <ftp://ftp.gnu.org/gnu/texinfo/texinfo-4.7.tar.gz>
Please report bugs to <bug-gnu-utils@gnu.org>.
-----
Copyright (C) 1992, 1998, 2001, 2002, 2004 Free Software Foundation,
Inc.
This file is part of GNU Diffutils.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.

22
contrib/diff/THANKS Normal file
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@ -0,0 +1,22 @@
Thanks to all the following for their contributions to GNU diffutils:
Thomas Bushnell <tb@becket.net>
Wayne Davison <wayned@users.sourceforge.net>
Ulrich Drepper <drepper@redhat.com>
Paul Eggert <eggert@twinsun.com>
Jay Fenlason <hack@gnu.org>
John Gilmore <gnu@cygnus.com>
Torbjorn Granlund <tege@swox.com>
Mike Haertel <mike@ichips.intel.com>
Bruno Haible <haible@ilog.fr>
Chris Hanson <cph@gnu.org>
Jim Kingdon <kingdon@panix.com>
Tom Lord <lord@gnu.org>
David J. MacKenzie <djm@gnu.org>
Roland McGrath <roland@gnu.org>
Jim Meyering <meyering@lucent.com>
Eugene W. Myers <gene@cs.arizona.edu>
Randy Smith <randy@gnu.org>
Richard Stallman <rms@gnu.org>
Leonard H. Tower Jr. <tower@ai.mit.edu>
Eli Zaretskii <eliz@is.elta.co.il>

1
contrib/diff/TODO Normal file
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@ -0,0 +1 @@
Add --include option (opposite of --exclude).

180
contrib/diff/bootstrap Executable file
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@ -0,0 +1,180 @@
#! /bin/sh
# Bootstrap this package from CVS.
# Copyright (C) 2003, 2004 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
# Written by Paul Eggert.
package=diffutils
# Parse options.
for option
do
case $option in
--help)
echo "$0: usage: $0 [--gnulib-srcdir=DIR] [--cvs-auth=AUTH-METHOD] [--cvs-user=USERNAME] [--skip-po]"
exit;;
--gnulib-srcdir=*)
GNULIB_SRCDIR=`expr "$1" : '--gnulib-srcdir=\(.*\)'`;;
--cvs-auth=*)
CVS_AUTH=`expr "$1" : '--cvs-auth=\(.*\)'`;;
--cvs-user=*)
CVS_USER=`expr "$1" : '--cvs-user=\(.*\)'`;;
--skip-po)
SKIP_PO=t;;
*)
echo >&2 "$0: $option: unknown option"
exit 1;;
esac
done
echo "$0: Bootstrapping CVS $package..."
build_cvs_prefix() {
CVS_PREFIX=:${1}:
if [ "${2}" != - ]; then
CVS_PREFIX=${CVS_PREFIX}${2}@
fi
}
# Get gnulib files.
case ${GNULIB_SRCDIR--} in
-)
if [ ! -d gnulib ]; then
echo "$0: getting gnulib files..."
trap exit 1 2 13 15
trap 'rm -fr gnulib; exit 1' 0
case "${CVS_AUTH--}" in
-) : ${CVS_RSH:?}
CVS_PREFIX="";;
pserver) build_cvs_prefix $CVS_AUTH ${CVS_USER:-anoncvs};;
gserver|server)
build_cvs_prefix $CVS_AUTH ${CVS_USER--};;
ext) : ${CVS_RSH:?}
build_cvs_prefix $CVS_AUTH ${CVS_USER--};;
*) echo "$0: Unknown CVS access method" >&2
exit 1;;
esac
if [ "${CVS_AUTH--}" = "pserver" ]; then
cvs -d ${CVS_PREFIX}subversions.gnu.org:/cvsroot/gnulib login || exit
fi
cvs -q -d ${CVS_PREFIX}subversions.gnu.org:/cvsroot/gnulib co gnulib || exit
trap 0
fi
GNULIB_SRCDIR=gnulib
esac
<$GNULIB_SRCDIR/gnulib-tool || exit
gnulib_modules='
c-stack
dirname
error
exclude
exit
exitfail
file-type
fnmatch-gnu
getopt
hard-locale
inttostr
mkstemp
posixver
regex
strcase
strftime
strtoumax
unlocked-io
version-etc
xalloc
xstrtoumax
'
previous_gnulib_modules=
while [ "$gnulib_modules" != "$previous_gnulib_modules" ]; do
previous_gnulib_modules=$gnulib_modules
gnulib_modules=`
(echo "$gnulib_modules"
for gnulib_module in $gnulib_modules; do
$GNULIB_SRCDIR/gnulib-tool --extract-dependencies $gnulib_module
done) | sort -u
`
done
gnulib_files=`
(for gnulib_module in $gnulib_modules; do
$GNULIB_SRCDIR/gnulib-tool --extract-filelist $gnulib_module
done) | sort -u
`
gnulib_dirs=`echo "$gnulib_files" | sed 's,/[^/]*$,,' | sort -u`
mkdir -p $gnulib_dirs || exit
for gnulib_file in $gnulib_files; do
dest=$gnulib_file
case $gnulib_file in
m4/onceonly_2_57.m4) dest=m4/onceonly.m4;;
esac
rm -f $dest &&
echo "$0: Copying file $GNULIB_SRCDIR/$gnulib_file" &&
cp -p $GNULIB_SRCDIR/$gnulib_file $dest || exit
done
# Get translations.
case $SKIP_PO in
'')
echo "$0: getting translations into po..."
(cd po &&
rm -f dummy `ls | sed -n '/\.gmo$/p; /\.po/p'` &&
wget -nv -nd -r -l 1 -A .po -C off \
http://www2.iro.umontreal.ca/~gnutra/po/maint/$package/ &&
ls *.po | sed 's/\.po$//' >LINGUAS
) || exit;;
esac
# Reconfigure, getting other files.
echo "$0: autoreconf --verbose --install --force ..."
autoreconf --verbose --install --force || exit
# Generate autoconf and automake snippets.
(echo '# This file is generated automatically by "bootstrap".' &&
echo 'AC_DEFUN([GNULIB_AUTOCONF_SNIPPET],[' &&
$GNULIB_SRCDIR/gnulib-tool --extract-autoconf-snippet $gnulib_modules &&
echo '])'
) >m4/gnulib.m4 || exit
(echo '# This file is generated automatically by "bootstrap".' &&
$GNULIB_SRCDIR/gnulib-tool --extract-automake-snippet $gnulib_modules
) >lib/gnulib.mk || exit
echo "$0: done. Now you can run './configure'."

24
contrib/diff/doc/Makefile.am Normal file
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@ -0,0 +1,24 @@
# Makefile for GNU diffutils documentation.
# Copyright (C) 2001, 2002 Free Software Foundation, Inc.
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2, or (at your option)
## any later version.
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software Foundation,
## Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
AM_MAKEINFOFLAGS = --no-split
info_TEXINFOS = diff.texi
diff_TEXINFOS = fdl.texi
EXTRA_DIST = diagmeet.note

71
contrib/diff/doc/diagmeet.note Normal file
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@ -0,0 +1,71 @@
Here is a comparison matrix which shows a case in which
it is possible for the forward and backward scan in `diag'
to meet along a nonzero length of diagonal simultaneous
(so that bdiag[d] and fdiag[d] are not equal)
even though there is no snake on that diagonal at the meeting point.
85 1 1 1 159 1 1 17
1 2 3 4
60
1 2
1
2 2 3 4
71
3 3 4 5
85
4 3 4 5
17
5 4 5
1
6 4 5 6
183
7 5 6 7
10
8 6 7
1
9 6 7 8
12
7 8 9 10
13
10 8 9 10
14
10 9 10
17
10 10
1
10 9 10
1
8 10 10 10
183
8 7 9 9 9
10
7 6 8 9 8 8
1
6 5 7 7
1
5 6 6
1
5 5 5
50
5 4 4 4
1
4 3 3
85
5 4 3 2 2
1
2 1
17
5 4 3 2 1 1
1
1 0
85 1 1 1 159 1 1 17

4649
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File diff suppressed because it is too large Load Diff

452
contrib/diff/doc/fdl.texi Normal file
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@ -0,0 +1,452 @@
@node GNU Free Documentation License
@appendixsec GNU Free Documentation License
@cindex FDL, GNU Free Documentation License
@center Version 1.2, November 2002
@display
Copyright @copyright{} 2000,2001,2002 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
@end display
@enumerate 0
@item
PREAMBLE
The purpose of this License is to make a manual, textbook, or other
functional and useful document @dfn{free} in the sense of freedom: to
assure everyone the effective freedom to copy and redistribute it,
with or without modifying it, either commercially or noncommercially.
Secondarily, this License preserves for the author and publisher a way
to get credit for their work, while not being considered responsible
for modifications made by others.
This License is a kind of ``copyleft'', which means that derivative
works of the document must themselves be free in the same sense. It
complements the GNU General Public License, which is a copyleft
license designed for free software.
We have designed this License in order to use it for manuals for free
software, because free software needs free documentation: a free
program should come with manuals providing the same freedoms that the
software does. But this License is not limited to software manuals;
it can be used for any textual work, regardless of subject matter or
whether it is published as a printed book. We recommend this License
principally for works whose purpose is instruction or reference.
@item
APPLICABILITY AND DEFINITIONS
This License applies to any manual or other work, in any medium, that
contains a notice placed by the copyright holder saying it can be
distributed under the terms of this License. Such a notice grants a
world-wide, royalty-free license, unlimited in duration, to use that
work under the conditions stated herein. The ``Document'', below,
refers to any such manual or work. Any member of the public is a
licensee, and is addressed as ``you''. You accept the license if you
copy, modify or distribute the work in a way requiring permission
under copyright law.
A ``Modified Version'' of the Document means any work containing the
Document or a portion of it, either copied verbatim, or with
modifications and/or translated into another language.
A ``Secondary Section'' is a named appendix or a front-matter section
of the Document that deals exclusively with the relationship of the
publishers or authors of the Document to the Document's overall
subject (or to related matters) and contains nothing that could fall
directly within that overall subject. (Thus, if the Document is in
part a textbook of mathematics, a Secondary Section may not explain
any mathematics.) The relationship could be a matter of historical
connection with the subject or with related matters, or of legal,
commercial, philosophical, ethical or political position regarding
them.
The ``Invariant Sections'' are certain Secondary Sections whose titles
are designated, as being those of Invariant Sections, in the notice
that says that the Document is released under this License. If a
section does not fit the above definition of Secondary then it is not
allowed to be designated as Invariant. The Document may contain zero
Invariant Sections. If the Document does not identify any Invariant
Sections then there are none.
The ``Cover Texts'' are certain short passages of text that are listed,
as Front-Cover Texts or Back-Cover Texts, in the notice that says that
the Document is released under this License. A Front-Cover Text may
be at most 5 words, and a Back-Cover Text may be at most 25 words.
A ``Transparent'' copy of the Document means a machine-readable copy,
represented in a format whose specification is available to the
general public, that is suitable for revising the document
straightforwardly with generic text editors or (for images composed of
pixels) generic paint programs or (for drawings) some widely available
drawing editor, and that is suitable for input to text formatters or
for automatic translation to a variety of formats suitable for input
to text formatters. A copy made in an otherwise Transparent file
format whose markup, or absence of markup, has been arranged to thwart
or discourage subsequent modification by readers is not Transparent.
An image format is not Transparent if used for any substantial amount
of text. A copy that is not ``Transparent'' is called ``Opaque''.
Examples of suitable formats for Transparent copies include plain
@sc{ascii} without markup, Texinfo input format, La@TeX{} input
format, @acronym{SGML} or @acronym{XML} using a publicly available
@acronym{DTD}, and standard-conforming simple @acronym{HTML},
PostScript or @acronym{PDF} designed for human modification. Examples
of transparent image formats include @acronym{PNG}, @acronym{XCF} and
@acronym{JPG}. Opaque formats include proprietary formats that can be
read and edited only by proprietary word processors, @acronym{SGML} or
@acronym{XML} for which the @acronym{DTD} and/or processing tools are
not generally available, and the machine-generated @acronym{HTML},
PostScript or @acronym{PDF} produced by some word processors for
output purposes only.
The ``Title Page'' means, for a printed book, the title page itself,
plus such following pages as are needed to hold, legibly, the material
this License requires to appear in the title page. For works in
formats which do not have any title page as such, ``Title Page'' means
the text near the most prominent appearance of the work's title,
preceding the beginning of the body of the text.
A section ``Entitled XYZ'' means a named subunit of the Document whose
title either is precisely XYZ or contains XYZ in parentheses following
text that translates XYZ in another language. (Here XYZ stands for a
specific section name mentioned below, such as ``Acknowledgements'',
``Dedications'', ``Endorsements'', or ``History''.) To ``Preserve the Title''
of such a section when you modify the Document means that it remains a
section ``Entitled XYZ'' according to this definition.
The Document may include Warranty Disclaimers next to the notice which
states that this License applies to the Document. These Warranty
Disclaimers are considered to be included by reference in this
License, but only as regards disclaiming warranties: any other
implication that these Warranty Disclaimers may have is void and has
no effect on the meaning of this License.
@item
VERBATIM COPYING
You may copy and distribute the Document in any medium, either
commercially or noncommercially, provided that this License, the
copyright notices, and the license notice saying this License applies
to the Document are reproduced in all copies, and that you add no other
conditions whatsoever to those of this License. You may not use
technical measures to obstruct or control the reading or further
copying of the copies you make or distribute. However, you may accept
compensation in exchange for copies. If you distribute a large enough
number of copies you must also follow the conditions in section 3.
You may also lend copies, under the same conditions stated above, and
you may publicly display copies.
@item
COPYING IN QUANTITY
If you publish printed copies (or copies in media that commonly have
printed covers) of the Document, numbering more than 100, and the
Document's license notice requires Cover Texts, you must enclose the
copies in covers that carry, clearly and legibly, all these Cover
Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on
the back cover. Both covers must also clearly and legibly identify
you as the publisher of these copies. The front cover must present
the full title with all words of the title equally prominent and
visible. You may add other material on the covers in addition.
Copying with changes limited to the covers, as long as they preserve
the title of the Document and satisfy these conditions, can be treated
as verbatim copying in other respects.
If the required texts for either cover are too voluminous to fit
legibly, you should put the first ones listed (as many as fit
reasonably) on the actual cover, and continue the rest onto adjacent
pages.
If you publish or distribute Opaque copies of the Document numbering
more than 100, you must either include a machine-readable Transparent
copy along with each Opaque copy, or state in or with each Opaque copy
a computer-network location from which the general network-using
public has access to download using public-standard network protocols
a complete Transparent copy of the Document, free of added material.
If you use the latter option, you must take reasonably prudent steps,
when you begin distribution of Opaque copies in quantity, to ensure
that this Transparent copy will remain thus accessible at the stated
location until at least one year after the last time you distribute an
Opaque copy (directly or through your agents or retailers) of that
edition to the public.
It is requested, but not required, that you contact the authors of the
Document well before redistributing any large number of copies, to give
them a chance to provide you with an updated version of the Document.
@item
MODIFICATIONS
You may copy and distribute a Modified Version of the Document under
the conditions of sections 2 and 3 above, provided that you release
the Modified Version under precisely this License, with the Modified
Version filling the role of the Document, thus licensing distribution
and modification of the Modified Version to whoever possesses a copy
of it. In addition, you must do these things in the Modified Version:
@enumerate A
@item
Use in the Title Page (and on the covers, if any) a title distinct
from that of the Document, and from those of previous versions
(which should, if there were any, be listed in the History section
of the Document). You may use the same title as a previous version
if the original publisher of that version gives permission.
@item
List on the Title Page, as authors, one or more persons or entities
responsible for authorship of the modifications in the Modified
Version, together with at least five of the principal authors of the
Document (all of its principal authors, if it has fewer than five),
unless they release you from this requirement.
@item
State on the Title page the name of the publisher of the
Modified Version, as the publisher.
@item
Preserve all the copyright notices of the Document.
@item
Add an appropriate copyright notice for your modifications
adjacent to the other copyright notices.
@item
Include, immediately after the copyright notices, a license notice
giving the public permission to use the Modified Version under the
terms of this License, in the form shown in the Addendum below.
@item
Preserve in that license notice the full lists of Invariant Sections
and required Cover Texts given in the Document's license notice.
@item
Include an unaltered copy of this License.
@item
Preserve the section Entitled ``History'', Preserve its Title, and add
to it an item stating at least the title, year, new authors, and
publisher of the Modified Version as given on the Title Page. If
there is no section Entitled ``History'' in the Document, create one
stating the title, year, authors, and publisher of the Document as
given on its Title Page, then add an item describing the Modified
Version as stated in the previous sentence.
@item
Preserve the network location, if any, given in the Document for
public access to a Transparent copy of the Document, and likewise
the network locations given in the Document for previous versions
it was based on. These may be placed in the ``History'' section.
You may omit a network location for a work that was published at
least four years before the Document itself, or if the original
publisher of the version it refers to gives permission.
@item
For any section Entitled ``Acknowledgements'' or ``Dedications'', Preserve
the Title of the section, and preserve in the section all the
substance and tone of each of the contributor acknowledgements and/or
dedications given therein.
@item
Preserve all the Invariant Sections of the Document,
unaltered in their text and in their titles. Section numbers
or the equivalent are not considered part of the section titles.
@item
Delete any section Entitled ``Endorsements''. Such a section
may not be included in the Modified Version.
@item
Do not retitle any existing section to be Entitled ``Endorsements'' or
to conflict in title with any Invariant Section.
@item
Preserve any Warranty Disclaimers.
@end enumerate
If the Modified Version includes new front-matter sections or
appendices that qualify as Secondary Sections and contain no material
copied from the Document, you may at your option designate some or all
of these sections as invariant. To do this, add their titles to the
list of Invariant Sections in the Modified Version's license notice.
These titles must be distinct from any other section titles.
You may add a section Entitled ``Endorsements'', provided it contains
nothing but endorsements of your Modified Version by various
parties---for example, statements of peer review or that the text has
been approved by an organization as the authoritative definition of a
standard.
You may add a passage of up to five words as a Front-Cover Text, and a
passage of up to 25 words as a Back-Cover Text, to the end of the list
of Cover Texts in the Modified Version. Only one passage of
Front-Cover Text and one of Back-Cover Text may be added by (or
through arrangements made by) any one entity. If the Document already
includes a cover text for the same cover, previously added by you or
by arrangement made by the same entity you are acting on behalf of,
you may not add another; but you may replace the old one, on explicit
permission from the previous publisher that added the old one.
The author(s) and publisher(s) of the Document do not by this License
give permission to use their names for publicity for or to assert or
imply endorsement of any Modified Version.
@item
COMBINING DOCUMENTS
You may combine the Document with other documents released under this
License, under the terms defined in section 4 above for modified
versions, provided that you include in the combination all of the
Invariant Sections of all of the original documents, unmodified, and
list them all as Invariant Sections of your combined work in its
license notice, and that you preserve all their Warranty Disclaimers.
The combined work need only contain one copy of this License, and
multiple identical Invariant Sections may be replaced with a single
copy. If there are multiple Invariant Sections with the same name but
different contents, make the title of each such section unique by
adding at the end of it, in parentheses, the name of the original
author or publisher of that section if known, or else a unique number.
Make the same adjustment to the section titles in the list of
Invariant Sections in the license notice of the combined work.
In the combination, you must combine any sections Entitled ``History''
in the various original documents, forming one section Entitled
``History''; likewise combine any sections Entitled ``Acknowledgements'',
and any sections Entitled ``Dedications''. You must delete all
sections Entitled ``Endorsements.''
@item
COLLECTIONS OF DOCUMENTS
You may make a collection consisting of the Document and other documents
released under this License, and replace the individual copies of this
License in the various documents with a single copy that is included in
the collection, provided that you follow the rules of this License for
verbatim copying of each of the documents in all other respects.
You may extract a single document from such a collection, and distribute
it individually under this License, provided you insert a copy of this
License into the extracted document, and follow this License in all
other respects regarding verbatim copying of that document.
@item
AGGREGATION WITH INDEPENDENT WORKS
A compilation of the Document or its derivatives with other separate
and independent documents or works, in or on a volume of a storage or
distribution medium, is called an ``aggregate'' if the copyright
resulting from the compilation is not used to limit the legal rights
of the compilation's users beyond what the individual works permit.
When the Document is included in an aggregate, this License does not
apply to the other works in the aggregate which are not themselves
derivative works of the Document.
If the Cover Text requirement of section 3 is applicable to these
copies of the Document, then if the Document is less than one half of
the entire aggregate, the Document's Cover Texts may be placed on
covers that bracket the Document within the aggregate, or the
electronic equivalent of covers if the Document is in electronic form.
Otherwise they must appear on printed covers that bracket the whole
aggregate.
@item
TRANSLATION
Translation is considered a kind of modification, so you may
distribute translations of the Document under the terms of section 4.
Replacing Invariant Sections with translations requires special
permission from their copyright holders, but you may include
translations of some or all Invariant Sections in addition to the
original versions of these Invariant Sections. You may include a
translation of this License, and all the license notices in the
Document, and any Warranty Disclaimers, provided that you also include
the original English version of this License and the original versions
of those notices and disclaimers. In case of a disagreement between
the translation and the original version of this License or a notice
or disclaimer, the original version will prevail.
If a section in the Document is Entitled ``Acknowledgements'',
``Dedications'', or ``History'', the requirement (section 4) to Preserve
its Title (section 1) will typically require changing the actual
title.
@item
TERMINATION
You may not copy, modify, sublicense, or distribute the Document except
as expressly provided for under this License. Any other attempt to
copy, modify, sublicense or distribute the Document is void, and will
automatically terminate your rights under this License. However,
parties who have received copies, or rights, from you under this
License will not have their licenses terminated so long as such
parties remain in full compliance.
@item
FUTURE REVISIONS OF THIS LICENSE
The Free Software Foundation may publish new, revised versions
of the GNU Free Documentation License from time to time. Such new
versions will be similar in spirit to the present version, but may
differ in detail to address new problems or concerns. See
@uref{http://www.gnu.org/copyleft/}.
Each version of the License is given a distinguishing version number.
If the Document specifies that a particular numbered version of this
License ``or any later version'' applies to it, you have the option of
following the terms and conditions either of that specified version or
of any later version that has been published (not as a draft) by the
Free Software Foundation. If the Document does not specify a version
number of this License, you may choose any version ever published (not
as a draft) by the Free Software Foundation.
@end enumerate
@page
@appendixsubsec ADDENDUM: How to use this License for your documents
To use this License in a document you have written, include a copy of
the License in the document and put the following copyright and
license notices just after the title page:
@smallexample
@group
Copyright (C) @var{year} @var{your name}.
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.2
or any later version published by the Free Software Foundation;
with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
Texts. A copy of the license is included in the section entitled ``GNU
Free Documentation License''.
@end group
@end smallexample
If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
replace the ``with...Texts.'' line with this:
@smallexample
@group
with the Invariant Sections being @var{list their titles}, with
the Front-Cover Texts being @var{list}, and with the Back-Cover Texts
being @var{list}.
@end group
@end smallexample
If you have Invariant Sections without Cover Texts, or some other
combination of the three, merge those two alternatives to suit the
situation.
If your document contains nontrivial examples of program code, we
recommend releasing these examples in parallel under your choice of
free software license, such as the GNU General Public License,
to permit their use in free software.
@c Local Variables:
@c ispell-local-pdict: "ispell-dict"
@c End:

4
contrib/diff/doc/stamp-vti Normal file
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@ -0,0 +1,4 @@
@set UPDATED 12 April 2004
@set UPDATED-MONTH April 2004
@set EDITION 2.8.7
@set VERSION 2.8.7

4
contrib/diff/doc/version.texi Normal file
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@ -0,0 +1,4 @@
@set UPDATED 12 April 2004
@set UPDATED-MONTH April 2004
@set EDITION 2.8.7
@set VERSION 2.8.7

115
contrib/diff/exgettext Executable file
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@ -0,0 +1,115 @@
#! /bin/sh
# Wrapper around gettext for programs using the msgid convention.
# Copyright (C) 1998, 2001, 2004 Free Software Foundation, Inc.
# Written by Paul Eggert <eggert@twinsun.com>.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with GNU CC; see the file COPYING. If not, write to
# the Free Software Foundation, 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
# Always operate in the C locale.
LANG=C
LANGUAGE=C
LC_ALL=C
export LANG LANGUAGE LC_ALL
# Set AWK if environment has not already set it.
AWK=${AWK-awk}
# The argument to this wrapper is the xgettext command to be executed.
# Extract the xgettext program name from the rest of the command.
xgettext=${1?}
shift
# Save work if we're just wrapping a no-op.
case $xgettext in
:) exit;;
esac
# Find the files to be scanned, and the directory to scan them from.
directory=.
files=
for i
do
case $i in
--directory=*)
directory=`expr " $i" : ' --directory=\(.*\)'`;;
--files-from=*)
files_from=`expr " $i" : ' --files-from=\(.*\)'`
files=`$AWK '/^[^#]/ { print }' $files_from`;;
esac
done
# Generate keyword options for xgettext,
# by scanning for declarations of functions
# whose parameter names end in "msgid".
generate_keyword_options='
/^[A-Z_a-z].*\(.*msgid[,)]/ {
paren_index = index($0, "(")
name = substr($0, 1, paren_index - 1)
sub(/[^0-9A-Z_a-z]*$/, "", name)
sub(/[ ]+PARAMS/, "", name)
sub(/[ ]+VPARAMS/, "", name)
sub(/.*[^0-9A-Z_a-z]/, "", name)
args = substr($0, paren_index)
sub(/msgid[,)].*/, "", args)
for (n = 1; sub(/^[^,]*,/, "", args); n++) {
continue;
}
if (n == 1) {
keyword = name
} else {
keyword = name ":" n
}
if (! keyword_seen[keyword]++) {
print "--keyword=" keyword
}
}
'
keyword_options=`(
cd $directory &&
$AWK "$generate_keyword_options" $files < /dev/null
)` || exit
# Run the xgettext command, with extra input containing the extra
# msgids that it wouldn't normally find.
generate_emsgids='
/%e.*}/ {
line = $0
while ((percent_index = index(line, "%e")) != 0) {
line = substr(line, percent_index + 2)
bracket_index = index(line, "}")
if (bracket_index == 0) {
continue
}
msgid = substr(line, 1, bracket_index - 1)
if (index(msgid, "%") != 0) {
continue
}
printf "#line %d \"%s\"\n", FNR, FILENAME
printf "_(\"%s\")\n", msgid
line = substr(line, bracket_index + 1)
}
}
'
(cd $directory &&
$AWK "$generate_emsgids" $files < /dev/null
) | "$xgettext" $keyword_options ${1+"$@"} -

35
contrib/diff/lib/Makefile.am Normal file
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@ -0,0 +1,35 @@
# Automakefile for GNU Diffutils library.
# Copyright (C) 2001, 2002, 2004 Free Software Foundation, Inc.
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2, or (at your option)
## any later version.
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
## 02111-1307, USA.
noinst_LIBRARIES = libdiffutils.a
noinst_HEADERS = cmpbuf.h prepargs.h quotesys.h
libdiffutils_a_SOURCES = $(lib_SOURCES)
lib_SOURCES = cmpbuf.c prepargs.c quotesys.c
libdiffutils_a_LIBADD = @ALLOCA@ @LIBOBJS@
libdiffutils_a_DEPENDENCIES = $(libdiffutils_a_LIBADD)
BUILT_SOURCES =
DISTCLEANFILES =
EXTRA_DIST = setmode.h waitpid.c
MOSTLYCLEANFILES =
include gnulib.mk

489
contrib/diff/lib/alloca.c Normal file
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@ -0,0 +1,489 @@
/* alloca.c -- allocate automatically reclaimed memory
(Mostly) portable public-domain implementation -- D A Gwyn
This implementation of the PWB library alloca function,
which is used to allocate space off the run-time stack so
that it is automatically reclaimed upon procedure exit,
was inspired by discussions with J. Q. Johnson of Cornell.
J.Otto Tennant <jot@cray.com> contributed the Cray support.
There are some preprocessor constants that can
be defined when compiling for your specific system, for
improved efficiency; however, the defaults should be okay.
The general concept of this implementation is to keep
track of all alloca-allocated blocks, and reclaim any
that are found to be deeper in the stack than the current
invocation. This heuristic does not reclaim storage as
soon as it becomes invalid, but it will do so eventually.
As a special case, alloca(0) reclaims storage without
allocating any. It is a good idea to use alloca(0) in
your main control loop, etc. to force garbage collection. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#include <stdlib.h>
#ifdef emacs
# include "lisp.h"
# include "blockinput.h"
# ifdef EMACS_FREE
# undef free
# define free EMACS_FREE
# endif
#else
# define memory_full() abort ()
#endif
/* If compiling with GCC 2, this file's not needed. */
#if !defined (__GNUC__) || __GNUC__ < 2
/* If someone has defined alloca as a macro,
there must be some other way alloca is supposed to work. */
# ifndef alloca
# ifdef emacs
# ifdef static
/* actually, only want this if static is defined as ""
-- this is for usg, in which emacs must undefine static
in order to make unexec workable
*/
# ifndef STACK_DIRECTION
you
lose
-- must know STACK_DIRECTION at compile-time
/* Using #error here is not wise since this file should work for
old and obscure compilers. */
# endif /* STACK_DIRECTION undefined */
# endif /* static */
# endif /* emacs */
/* If your stack is a linked list of frames, you have to
provide an "address metric" ADDRESS_FUNCTION macro. */
# if defined (CRAY) && defined (CRAY_STACKSEG_END)
long i00afunc ();
# define ADDRESS_FUNCTION(arg) (char *) i00afunc (&(arg))
# else
# define ADDRESS_FUNCTION(arg) &(arg)
# endif
/* Define STACK_DIRECTION if you know the direction of stack
growth for your system; otherwise it will be automatically
deduced at run-time.
STACK_DIRECTION > 0 => grows toward higher addresses
STACK_DIRECTION < 0 => grows toward lower addresses
STACK_DIRECTION = 0 => direction of growth unknown */
# ifndef STACK_DIRECTION
# define STACK_DIRECTION 0 /* Direction unknown. */
# endif
# if STACK_DIRECTION != 0
# define STACK_DIR STACK_DIRECTION /* Known at compile-time. */
# else /* STACK_DIRECTION == 0; need run-time code. */
static int stack_dir; /* 1 or -1 once known. */
# define STACK_DIR stack_dir
static void
find_stack_direction (void)
{
static char *addr = NULL; /* Address of first `dummy', once known. */
auto char dummy; /* To get stack address. */
if (addr == NULL)
{ /* Initial entry. */
addr = ADDRESS_FUNCTION (dummy);
find_stack_direction (); /* Recurse once. */
}
else
{
/* Second entry. */
if (ADDRESS_FUNCTION (dummy) > addr)
stack_dir = 1; /* Stack grew upward. */
else
stack_dir = -1; /* Stack grew downward. */
}
}
# endif /* STACK_DIRECTION == 0 */
/* An "alloca header" is used to:
(a) chain together all alloca'ed blocks;
(b) keep track of stack depth.
It is very important that sizeof(header) agree with malloc
alignment chunk size. The following default should work okay. */
# ifndef ALIGN_SIZE
# define ALIGN_SIZE sizeof(double)
# endif
typedef union hdr
{
char align[ALIGN_SIZE]; /* To force sizeof(header). */
struct
{
union hdr *next; /* For chaining headers. */
char *deep; /* For stack depth measure. */
} h;
} header;
static header *last_alloca_header = NULL; /* -> last alloca header. */
/* Return a pointer to at least SIZE bytes of storage,
which will be automatically reclaimed upon exit from
the procedure that called alloca. Originally, this space
was supposed to be taken from the current stack frame of the
caller, but that method cannot be made to work for some
implementations of C, for example under Gould's UTX/32. */
void *
alloca (size_t size)
{
auto char probe; /* Probes stack depth: */
register char *depth = ADDRESS_FUNCTION (probe);
# if STACK_DIRECTION == 0
if (STACK_DIR == 0) /* Unknown growth direction. */
find_stack_direction ();
# endif
/* Reclaim garbage, defined as all alloca'd storage that
was allocated from deeper in the stack than currently. */
{
register header *hp; /* Traverses linked list. */
# ifdef emacs
BLOCK_INPUT;
# endif
for (hp = last_alloca_header; hp != NULL;)
if ((STACK_DIR > 0 && hp->h.deep > depth)
|| (STACK_DIR < 0 && hp->h.deep < depth))
{
register header *np = hp->h.next;
free (hp); /* Collect garbage. */
hp = np; /* -> next header. */
}
else
break; /* Rest are not deeper. */
last_alloca_header = hp; /* -> last valid storage. */
# ifdef emacs
UNBLOCK_INPUT;
# endif
}
if (size == 0)
return NULL; /* No allocation required. */
/* Allocate combined header + user data storage. */
{
/* Address of header. */
register header *new;
size_t combined_size = sizeof (header) + size;
if (combined_size < sizeof (header))
memory_full ();
new = malloc (combined_size);
if (! new)
memory_full ();
new->h.next = last_alloca_header;
new->h.deep = depth;
last_alloca_header = new;
/* User storage begins just after header. */
return (void *) (new + 1);
}
}
# if defined (CRAY) && defined (CRAY_STACKSEG_END)
# ifdef DEBUG_I00AFUNC
# include <stdio.h>
# endif
# ifndef CRAY_STACK
# define CRAY_STACK
# ifndef CRAY2
/* Stack structures for CRAY-1, CRAY X-MP, and CRAY Y-MP */
struct stack_control_header
{
long shgrow:32; /* Number of times stack has grown. */
long shaseg:32; /* Size of increments to stack. */
long shhwm:32; /* High water mark of stack. */
long shsize:32; /* Current size of stack (all segments). */
};
/* The stack segment linkage control information occurs at
the high-address end of a stack segment. (The stack
grows from low addresses to high addresses.) The initial
part of the stack segment linkage control information is
0200 (octal) words. This provides for register storage
for the routine which overflows the stack. */
struct stack_segment_linkage
{
long ss[0200]; /* 0200 overflow words. */
long sssize:32; /* Number of words in this segment. */
long ssbase:32; /* Offset to stack base. */
long:32;
long sspseg:32; /* Offset to linkage control of previous
segment of stack. */
long:32;
long sstcpt:32; /* Pointer to task common address block. */
long sscsnm; /* Private control structure number for
microtasking. */
long ssusr1; /* Reserved for user. */
long ssusr2; /* Reserved for user. */
long sstpid; /* Process ID for pid based multi-tasking. */
long ssgvup; /* Pointer to multitasking thread giveup. */
long sscray[7]; /* Reserved for Cray Research. */
long ssa0;
long ssa1;
long ssa2;
long ssa3;
long ssa4;
long ssa5;
long ssa6;
long ssa7;
long sss0;
long sss1;
long sss2;
long sss3;
long sss4;
long sss5;
long sss6;
long sss7;
};
# else /* CRAY2 */
/* The following structure defines the vector of words
returned by the STKSTAT library routine. */
struct stk_stat
{
long now; /* Current total stack size. */
long maxc; /* Amount of contiguous space which would
be required to satisfy the maximum
stack demand to date. */
long high_water; /* Stack high-water mark. */
long overflows; /* Number of stack overflow ($STKOFEN) calls. */
long hits; /* Number of internal buffer hits. */
long extends; /* Number of block extensions. */
long stko_mallocs; /* Block allocations by $STKOFEN. */
long underflows; /* Number of stack underflow calls ($STKRETN). */
long stko_free; /* Number of deallocations by $STKRETN. */
long stkm_free; /* Number of deallocations by $STKMRET. */
long segments; /* Current number of stack segments. */
long maxs; /* Maximum number of stack segments so far. */
long pad_size; /* Stack pad size. */
long current_address; /* Current stack segment address. */
long current_size; /* Current stack segment size. This
number is actually corrupted by STKSTAT to
include the fifteen word trailer area. */
long initial_address; /* Address of initial segment. */
long initial_size; /* Size of initial segment. */
};
/* The following structure describes the data structure which trails
any stack segment. I think that the description in 'asdef' is
out of date. I only describe the parts that I am sure about. */
struct stk_trailer
{
long this_address; /* Address of this block. */
long this_size; /* Size of this block (does not include
this trailer). */
long unknown2;
long unknown3;
long link; /* Address of trailer block of previous
segment. */
long unknown5;
long unknown6;
long unknown7;
long unknown8;
long unknown9;
long unknown10;
long unknown11;
long unknown12;
long unknown13;
long unknown14;
};
# endif /* CRAY2 */
# endif /* not CRAY_STACK */
# ifdef CRAY2
/* Determine a "stack measure" for an arbitrary ADDRESS.
I doubt that "lint" will like this much. */
static long
i00afunc (long *address)
{
struct stk_stat status;
struct stk_trailer *trailer;
long *block, size;
long result = 0;
/* We want to iterate through all of the segments. The first
step is to get the stack status structure. We could do this
more quickly and more directly, perhaps, by referencing the
$LM00 common block, but I know that this works. */
STKSTAT (&status);
/* Set up the iteration. */
trailer = (struct stk_trailer *) (status.current_address
+ status.current_size
- 15);
/* There must be at least one stack segment. Therefore it is
a fatal error if "trailer" is null. */
if (trailer == 0)
abort ();
/* Discard segments that do not contain our argument address. */
while (trailer != 0)
{
block = (long *) trailer->this_address;
size = trailer->this_size;
if (block == 0 || size == 0)
abort ();
trailer = (struct stk_trailer *) trailer->link;
if ((block <= address) && (address < (block + size)))
break;
}
/* Set the result to the offset in this segment and add the sizes
of all predecessor segments. */
result = address - block;
if (trailer == 0)
{
return result;
}
do
{
if (trailer->this_size <= 0)
abort ();
result += trailer->this_size;
trailer = (struct stk_trailer *) trailer->link;
}
while (trailer != 0);
/* We are done. Note that if you present a bogus address (one
not in any segment), you will get a different number back, formed
from subtracting the address of the first block. This is probably
not what you want. */
return (result);
}
# else /* not CRAY2 */
/* Stack address function for a CRAY-1, CRAY X-MP, or CRAY Y-MP.
Determine the number of the cell within the stack,
given the address of the cell. The purpose of this
routine is to linearize, in some sense, stack addresses
for alloca. */
static long
i00afunc (long address)
{
long stkl = 0;
long size, pseg, this_segment, stack;
long result = 0;
struct stack_segment_linkage *ssptr;
/* Register B67 contains the address of the end of the
current stack segment. If you (as a subprogram) store
your registers on the stack and find that you are past
the contents of B67, you have overflowed the segment.
B67 also points to the stack segment linkage control
area, which is what we are really interested in. */
stkl = CRAY_STACKSEG_END ();
ssptr = (struct stack_segment_linkage *) stkl;
/* If one subtracts 'size' from the end of the segment,
one has the address of the first word of the segment.
If this is not the first segment, 'pseg' will be
nonzero. */
pseg = ssptr->sspseg;
size = ssptr->sssize;
this_segment = stkl - size;
/* It is possible that calling this routine itself caused
a stack overflow. Discard stack segments which do not
contain the target address. */
while (!(this_segment <= address && address <= stkl))
{
# ifdef DEBUG_I00AFUNC
fprintf (stderr, "%011o %011o %011o\n", this_segment, address, stkl);
# endif
if (pseg == 0)
break;
stkl = stkl - pseg;
ssptr = (struct stack_segment_linkage *) stkl;
size = ssptr->sssize;
pseg = ssptr->sspseg;
this_segment = stkl - size;
}
result = address - this_segment;
/* If you subtract pseg from the current end of the stack,
you get the address of the previous stack segment's end.
This seems a little convoluted to me, but I'll bet you save
a cycle somewhere. */
while (pseg != 0)
{
# ifdef DEBUG_I00AFUNC
fprintf (stderr, "%011o %011o\n", pseg, size);
# endif
stkl = stkl - pseg;
ssptr = (struct stack_segment_linkage *) stkl;
size = ssptr->sssize;
pseg = ssptr->sspseg;
result += size;
}
return (result);
}
# endif /* not CRAY2 */
# endif /* CRAY */
# endif /* no alloca */
#endif /* not GCC version 2 */

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/* Memory allocation on the stack.
Copyright (C) 1995, 1999, 2001-2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public
License along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
USA. */
/* When this file is included, it may be preceded only by preprocessor
declarations. Thanks to AIX. Therefore we include it right after
"config.h", not later. */
#ifndef _ALLOCA_H
# define _ALLOCA_H
/* alloca(N) returns a pointer (void* or char*) to N bytes of memory
allocated on the stack, and which will last until the function returns.
Use of alloca should be avoided:
- inside arguments of function calls - undefined behaviour,
- in inline functions - the allocation may actually last until the
calling function returns,
- for huge N (say, N >= 65536) - you never know how large (or small)
the stack is, and when the stack cannot fulfill the memory allocation
request, the program just crashes.
*/
# ifdef __GNUC__
# ifndef alloca
# define alloca __builtin_alloca
# endif
# else
# ifdef _MSC_VER
# include <malloc.h>
# define alloca _alloca
# else
# if HAVE_ALLOCA_H
# include <alloca.h>
# else
# ifdef _AIX
# pragma alloca
# else
# ifdef __hpux /* This section must match that of bison generated files. */
# ifdef __cplusplus
extern "C" void *alloca (unsigned int);
# else /* not __cplusplus */
extern void *alloca ();
# endif /* not __cplusplus */
# else /* not __hpux */
# ifndef alloca
extern char *alloca ();
# endif
# endif /* __hpux */
# endif
# endif
# endif
# endif
#endif /* _ALLOCA_H */

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/* basename.c -- return the last element in a path
Copyright (C) 1990, 1998, 1999, 2000, 2001, 2003 Free Software
Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include "dirname.h"
#include <string.h>
/* In general, we can't use the builtin `basename' function if available,
since it has different meanings in different environments.
In some environments the builtin `basename' modifies its argument.
Return the address of the last file name component of NAME. If
NAME has no file name components because it is all slashes, return
NAME if it is empty, the address of its last slash otherwise. */
char *
base_name (char const *name)
{
char const *base = name + FILESYSTEM_PREFIX_LEN (name);
char const *p;
for (p = base; *p; p++)
{
if (ISSLASH (*p))
{
/* Treat multiple adjacent slashes like a single slash. */
do p++;
while (ISSLASH (*p));
/* If the file name ends in slash, use the trailing slash as
the basename if no non-slashes have been found. */
if (! *p)
{
if (ISSLASH (*base))
base = p - 1;
break;
}
/* *P is a non-slash preceded by a slash. */
base = p;
}
}
return (char *) base;
}
/* Return the length of of the basename NAME. Typically NAME is the
value returned by base_name. Act like strlen (NAME), except omit
redundant trailing slashes. */
size_t
base_len (char const *name)
{
size_t len;
for (len = strlen (name); 1 < len && ISSLASH (name[len - 1]); len--)
continue;
return len;
}

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/* Stack overflow handling.
Copyright (C) 2002, 2004 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Paul Eggert. */
/* NOTES:
A program that uses alloca, dynamic arrays, or large local
variables may extend the stack by more than a page at a time. If
so, when the stack overflows the operating system may not detect
the overflow until the program uses the array, and this module may
incorrectly report a program error instead of a stack overflow.
To avoid this problem, allocate only small objects on the stack; a
program should be OK if it limits single allocations to a page or
less. Allocate larger arrays in static storage, or on the heap
(e.g., with malloc). Yes, this is a pain, but we don't know of any
better solution that is portable.
No attempt has been made to deal with multithreaded applications. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#ifndef __attribute__
# if __GNUC__ < 3 || __STRICT_ANSI__
# define __attribute__(x)
# endif
#endif
#include "gettext.h"
#define _(msgid) gettext (msgid)
#include <errno.h>
#ifndef ENOTSUP
# define ENOTSUP EINVAL
#endif
#ifndef EOVERFLOW
# define EOVERFLOW EINVAL
#endif
#include <signal.h>
#if ! HAVE_STACK_T && ! defined stack_t
typedef struct sigaltstack stack_t;
#endif
#include <stdlib.h>
#include <string.h>
#if HAVE_SYS_RESOURCE_H
/* Include sys/time.h here, because...
SunOS-4.1.x <sys/resource.h> fails to include <sys/time.h>.
This gives "incomplete type" errors for ru_utime and tu_stime. */
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# endif
# include <sys/resource.h>
#endif
#if HAVE_UCONTEXT_H
# include <ucontext.h>
#endif
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifndef STDERR_FILENO
# define STDERR_FILENO 2
#endif
#if DEBUG
# include <stdio.h>
#endif
#include "c-stack.h"
#include "exitfail.h"
#if (HAVE_STRUCT_SIGACTION_SA_SIGACTION && defined SA_NODEFER \
&& defined SA_ONSTACK && defined SA_RESETHAND && defined SA_SIGINFO)
# define SIGACTION_WORKS 1
#else
# define SIGACTION_WORKS 0
#endif
extern char *program_name;
/* The user-specified action to take when a SEGV-related program error
or stack overflow occurs. */
static void (* volatile segv_action) (int);
/* Translated messages for program errors and stack overflow. Do not
translate them in the signal handler, since gettext is not
async-signal-safe. */
static char const * volatile program_error_message;
static char const * volatile stack_overflow_message;
/* Output an error message, then exit with status EXIT_FAILURE if it
appears to have been a stack overflow, or with a core dump
otherwise. This function is async-signal-safe. */
static void die (int) __attribute__ ((noreturn));
static void
die (int signo)
{
char const *message;
segv_action (signo);
message = signo ? program_error_message : stack_overflow_message;
write (STDERR_FILENO, program_name, strlen (program_name));
write (STDERR_FILENO, ": ", 2);
write (STDERR_FILENO, message, strlen (message));
write (STDERR_FILENO, "\n", 1);
if (! signo)
_exit (exit_failure);
kill (getpid (), signo);
abort ();
}
#if HAVE_SIGALTSTACK && HAVE_DECL_SIGALTSTACK
/* Direction of the C runtime stack. This function is
async-signal-safe. */
# if STACK_DIRECTION
# define find_stack_direction(ptr) STACK_DIRECTION
# else
static int
find_stack_direction (char const *addr)
{
char dummy;
return ! addr ? find_stack_direction (&dummy) : addr < &dummy ? 1 : -1;
}
# endif
/* Storage for the alternate signal stack. */
static union
{
char buffer[SIGSTKSZ];
/* These other members are for proper alignment. There's no
standard way to guarantee stack alignment, but this seems enough
in practice. */
long double ld;
long l;
void *p;
} alternate_signal_stack;
# if SIGACTION_WORKS
/* Handle a segmentation violation and exit. This function is
async-signal-safe. */
static void segv_handler (int, siginfo_t *, void *) __attribute__((noreturn));
static void
segv_handler (int signo, siginfo_t *info,
void *context __attribute__ ((unused)))
{
/* Clear SIGNO if it seems to have been a stack overflow. */
if (0 < info->si_code)
{
# if ! HAVE_XSI_STACK_OVERFLOW_HEURISTIC
/* We can't easily determine whether it is a stack overflow; so
assume that the rest of our program is perfect (!) and that
this segmentation violation is a stack overflow. */
signo = 0;
# else
/* If the faulting address is within the stack, or within one
page of the stack end, assume that it is a stack
overflow. */
ucontext_t const *user_context = context;
char const *stack_base = user_context->uc_stack.ss_sp;
size_t stack_size = user_context->uc_stack.ss_size;
char const *faulting_address = info->si_addr;
size_t s = faulting_address - stack_base;
size_t page_size = sysconf (_SC_PAGESIZE);
if (find_stack_direction (0) < 0)
s += page_size;
if (s < stack_size + page_size)
signo = 0;
# if DEBUG
{
char buf[1024];
sprintf (buf,
"segv_handler fault=%p base=%p size=%lx page=%lx signo=%d\n",
faulting_address, stack_base, (unsigned long) stack_size,
(unsigned long) page_size, signo);
write (STDERR_FILENO, buf, strlen (buf));
}
# endif
# endif
}
die (signo);
}
# endif
static void
null_action (int signo __attribute__ ((unused)))
{
}
/* Set up ACTION so that it is invoked on C stack overflow. Return -1
(setting errno) if this cannot be done.
When ACTION is called, it is passed an argument equal to SIGSEGV
for a segmentation violation that does not appear related to stack
overflow, and is passed zero otherwise. On many platforms it is
hard to tell; when in doubt, zero is passed.
A null ACTION acts like an action that does nothing.
ACTION must be async-signal-safe. ACTION together with its callees
must not require more than SIGSTKSZ bytes of stack space. */
int
c_stack_action (void (*action) (int))
{
int r;
stack_t st;
st.ss_flags = 0;
st.ss_sp = alternate_signal_stack.buffer;
st.ss_size = sizeof alternate_signal_stack.buffer;
r = sigaltstack (&st, 0);
if (r != 0)
return r;
segv_action = action ? action : null_action;
program_error_message = _("program error");
stack_overflow_message = _("stack overflow");
{
# if SIGACTION_WORKS
struct sigaction act;
sigemptyset (&act.sa_mask);
/* POSIX 1003.1-2001 says SA_RESETHAND implies SA_NODEFER, but
this is not true on Solaris 8 at least. It doesn't hurt to use
SA_NODEFER here, so leave it in. */
act.sa_flags = SA_NODEFER | SA_ONSTACK | SA_RESETHAND | SA_SIGINFO;
act.sa_sigaction = segv_handler;
return sigaction (SIGSEGV, &act, 0);
# else
return signal (SIGSEGV, die) == SIG_ERR ? -1 : 0;
# endif
}
}
#else /* ! (HAVE_SIGALTSTACK && HAVE_DECL_SIGALTSTACK) */
int
c_stack_action (void (*action) (int) __attribute__ ((unused)))
{
errno = ENOTSUP;
return -1;
}
#endif
#if DEBUG
int volatile exit_failure;
static long
recurse (char *p)
{
char array[500];
array[0] = 1;
return *p + recurse (array);
}
char *program_name;
int
main (int argc __attribute__ ((unused)), char **argv)
{
program_name = argv[0];
fprintf (stderr,
"The last output line should contain \"stack overflow\".\n");
if (c_stack_action (0) == 0)
return recurse ("\1");
perror ("c_stack_action");
return 1;
}
#endif /* DEBUG */
/*
Local Variables:
compile-command: "gcc -DDEBUG -DHAVE_CONFIG_H -I.. -g -O -Wall -W c-stack.c"
End:
*/

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/* Stack overflow handling.
Copyright (C) 2002, 2004 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
int c_stack_action (void (*) (int));

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/* Buffer primitives for comparison operations.
Copyright (C) 1993, 1995, 1998, 2001, 2002 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.
If not, write to the Free Software Foundation,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include <errno.h>
#include <limits.h>
#include <signal.h>
#ifndef SA_RESTART
# ifdef SA_INTERRUPT /* e.g. SunOS 4.1.x */
# define SA_RESTART SA_INTERRUPT
# else
# define SA_RESTART 0
# endif
#endif
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
#if HAVE_INTTYPES_H
# include <inttypes.h>
#endif
#include <sys/types.h>
#include "cmpbuf.h"
/* Determine whether an integer type is signed, and its bounds.
This code assumes two's (or one's!) complement with no holes. */
/* The extra casts work around common compiler bugs,
e.g. Cray C 5.0.3.0 when t == time_t. */
#ifndef TYPE_SIGNED
# define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
#endif
#ifndef TYPE_MINIMUM
# define TYPE_MINIMUM(t) ((t) (TYPE_SIGNED (t) \
? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) \
: (t) 0))
#endif
#ifndef TYPE_MAXIMUM
# define TYPE_MAXIMUM(t) ((t) (~ (t) 0 - TYPE_MINIMUM (t)))
#endif
#ifndef PTRDIFF_MAX
# define PTRDIFF_MAX TYPE_MAXIMUM (ptrdiff_t)
#endif
#ifndef SIZE_MAX
# define SIZE_MAX TYPE_MAXIMUM (size_t)
#endif
#ifndef SSIZE_MAX
# define SSIZE_MAX TYPE_MAXIMUM (ssize_t)
#endif
#undef MIN
#define MIN(a, b) ((a) <= (b) ? (a) : (b))
/* Read NBYTES bytes from descriptor FD into BUF.
NBYTES must not be SIZE_MAX.
Return the number of characters successfully read.
On error, return SIZE_MAX, setting errno.
The number returned is always NBYTES unless end-of-file or error. */
size_t
block_read (int fd, char *buf, size_t nbytes)
{
char *bp = buf;
char const *buflim = buf + nbytes;
size_t readlim = SSIZE_MAX;
do
{
size_t bytes_to_read = MIN (buflim - bp, readlim);
ssize_t nread = read (fd, bp, bytes_to_read);
if (nread <= 0)
{
if (nread == 0)
break;
/* Accommodate Tru64 5.1, which can't read more than INT_MAX
bytes at a time. They call that a 64-bit OS? */
if (errno == EINVAL && INT_MAX < bytes_to_read)
{
readlim = INT_MAX;
continue;
}
/* This is needed for programs that have signal handlers on
older hosts without SA_RESTART. It also accommodates
ancient AIX hosts that set errno to EINTR after uncaught
SIGCONT. See <news:1r77ojINN85n@ftp.UU.NET>
(1993-04-22). */
if (! SA_RESTART && errno == EINTR)
continue;
return SIZE_MAX;
}
bp += nread;
}
while (bp < buflim);
return bp - buf;
}
/* Least common multiple of two buffer sizes A and B. However, if
either A or B is zero, or if the multiple is greater than LCM_MAX,
return a reasonable buffer size. */
size_t
buffer_lcm (size_t a, size_t b, size_t lcm_max)
{
size_t lcm, m, n, q, r;
/* Yield reasonable values if buffer sizes are zero. */
if (!a)
return b ? b : 8 * 1024;
if (!b)
return a;
/* n = gcd (a, b) */
for (m = a, n = b; (r = m % n) != 0; m = n, n = r)
continue;
/* Yield a if there is an overflow. */
q = a / n;
lcm = q * b;
return lcm <= lcm_max && lcm / b == q ? lcm : a;
}

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/* Buffer primitives for comparison operations.
Copyright (C) 2002 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.
If not, write to the Free Software Foundation,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
size_t block_read (int, char *, size_t);
size_t buffer_lcm (size_t, size_t, size_t);

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/* dirname.c -- return all but the last element in a path
Copyright (C) 1990, 1998, 2000, 2001, 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include "dirname.h"
#include <string.h>
#include "xalloc.h"
/* Return the length of `dirname (PATH)', or zero if PATH is
in the working directory. Works properly even if
there are trailing slashes (by effectively ignoring them). */
size_t
dir_len (char const *path)
{
size_t prefix_length = FILESYSTEM_PREFIX_LEN (path);
size_t length;
/* Strip the basename and any redundant slashes before it. */
for (length = base_name (path) - path; prefix_length < length; length--)
if (! ISSLASH (path[length - 1]))
return length;
/* But don't strip the only slash from "/". */
return prefix_length + ISSLASH (path[prefix_length]);
}
/* Return the leading directories part of PATH,
allocated with xmalloc.
Works properly even if there are trailing slashes
(by effectively ignoring them). */
char *
dir_name (char const *path)
{
size_t length = dir_len (path);
int append_dot = (length == FILESYSTEM_PREFIX_LEN (path));
char *newpath = xmalloc (length + append_dot + 1);
memcpy (newpath, path, length);
if (append_dot)
newpath[length++] = '.';
newpath[length] = 0;
return newpath;
}
#ifdef TEST_DIRNAME
/*
Run the test like this (expect no output):
gcc -DHAVE_CONFIG_H -DTEST_DIRNAME -I.. -O -Wall \
basename.c dirname.c xmalloc.c error.c
sed -n '/^BEGIN-DATA$/,/^END-DATA$/p' dirname.c|grep -v DATA|./a.out
If it's been built on a DOS or Windows platforms, run another test like
this (again, expect no output):
sed -n '/^BEGIN-DOS-DATA$/,/^END-DOS-DATA$/p' dirname.c|grep -v DATA|./a.out
BEGIN-DATA
foo//// .
bar/foo//// bar
foo/ .
/ /
. .
a .
END-DATA
BEGIN-DOS-DATA
c:///// c:/
c:/ c:/
c:/. c:/
c:foo c:.
c:foo/bar c:foo
END-DOS-DATA
*/
# define MAX_BUFF_LEN 1024
# include <stdio.h>
char *program_name;
int
main (int argc, char *argv[])
{
char buff[MAX_BUFF_LEN + 1];
program_name = argv[0];
buff[MAX_BUFF_LEN] = 0;
while (fgets (buff, MAX_BUFF_LEN, stdin) && buff[0])
{
char path[MAX_BUFF_LEN];
char expected_result[MAX_BUFF_LEN];
char const *result;
sscanf (buff, "%s %s", path, expected_result);
result = dir_name (path);
if (strcmp (result, expected_result))
printf ("%s: got %s, expected %s\n", path, result, expected_result);
}
return 0;
}
#endif

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/* Take file names apart into directory and base names.
Copyright (C) 1998, 2001, 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef DIRNAME_H_
# define DIRNAME_H_ 1
# include <stddef.h>
# ifndef DIRECTORY_SEPARATOR
# define DIRECTORY_SEPARATOR '/'
# endif
# ifndef ISSLASH
# define ISSLASH(C) ((C) == DIRECTORY_SEPARATOR)
# endif
# ifndef FILESYSTEM_PREFIX_LEN
# define FILESYSTEM_PREFIX_LEN(Filename) 0
# endif
char *base_name (char const *path);
char *dir_name (char const *path);
size_t base_len (char const *path);
size_t dir_len (char const *path);
int strip_trailing_slashes (char *path);
#endif /* not DIRNAME_H_ */

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/* Error handler for noninteractive utilities
Copyright (C) 1990-1998, 2000-2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by David MacKenzie <djm@gnu.ai.mit.edu>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "error.h"
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef _LIBC
# include <libintl.h>
#else
# include "gettext.h"
#endif
#ifdef _LIBC
# include <wchar.h>
# define mbsrtowcs __mbsrtowcs
#endif
#if !_LIBC
# include "unlocked-io.h"
#endif
#ifndef _
# define _(String) String
#endif
/* If NULL, error will flush stdout, then print on stderr the program
name, a colon and a space. Otherwise, error will call this
function without parameters instead. */
void (*error_print_progname) (void);
/* This variable is incremented each time `error' is called. */
unsigned int error_message_count;
#ifdef _LIBC
/* In the GNU C library, there is a predefined variable for this. */
# define program_name program_invocation_name
# include <errno.h>
# include <libio/libioP.h>
/* In GNU libc we want do not want to use the common name `error' directly.
Instead make it a weak alias. */
extern void __error (int status, int errnum, const char *message, ...)
__attribute__ ((__format__ (__printf__, 3, 4)));
extern void __error_at_line (int status, int errnum, const char *file_name,
unsigned int line_number, const char *message,
...)
__attribute__ ((__format__ (__printf__, 5, 6)));;
# define error __error
# define error_at_line __error_at_line
# include <libio/iolibio.h>
# define fflush(s) INTUSE(_IO_fflush) (s)
# undef putc
# define putc(c, fp) INTUSE(_IO_putc) (c, fp)
# include <bits/libc-lock.h>
#else /* not _LIBC */
# if !HAVE_DECL_STRERROR_R && STRERROR_R_CHAR_P
# ifndef HAVE_DECL_STRERROR_R
"this configure-time declaration test was not run"
# endif
char *strerror_r ();
# endif
# ifndef SIZE_MAX
# define SIZE_MAX ((size_t) -1)
# endif
/* The calling program should define program_name and set it to the
name of the executing program. */
extern char *program_name;
# if HAVE_STRERROR_R || defined strerror_r
# define __strerror_r strerror_r
# endif
#endif /* not _LIBC */
static void
print_errno_message (int errnum)
{
char const *s;
#if defined HAVE_STRERROR_R || _LIBC
char errbuf[1024];
# if STRERROR_R_CHAR_P || _LIBC
s = __strerror_r (errnum, errbuf, sizeof errbuf);
# else
if (__strerror_r (errnum, errbuf, sizeof errbuf) == 0)
s = errbuf;
else
s = 0;
# endif
#else
s = strerror (errnum);
#endif
#if !_LIBC
if (! s)
s = _("Unknown system error");
#endif
#if _LIBC
if (_IO_fwide (stderr, 0) > 0)
{
__fwprintf (stderr, L": %s", s);
return;
}
#endif
fprintf (stderr, ": %s", s);
}
static void
error_tail (int status, int errnum, const char *message, va_list args)
{
#if _LIBC
if (_IO_fwide (stderr, 0) > 0)
{
# define ALLOCA_LIMIT 2000
size_t len = strlen (message) + 1;
const wchar_t *wmessage = L"out of memory";
wchar_t *wbuf = (len < ALLOCA_LIMIT
? alloca (len * sizeof *wbuf)
: len <= SIZE_MAX / sizeof *wbuf
? malloc (len * sizeof *wbuf)
: NULL);
if (wbuf)
{
size_t res;
mbstate_t st;
const char *tmp = message;
memset (&st, '\0', sizeof (st));
res = mbsrtowcs (wbuf, &tmp, len, &st);
wmessage = res == (size_t) -1 ? L"???" : wbuf;
}
__vfwprintf (stderr, wmessage, args);
if (! (len < ALLOCA_LIMIT))
free (wbuf);
}
else
#endif
vfprintf (stderr, message, args);
va_end (args);
++error_message_count;
if (errnum)
print_errno_message (errnum);
#if _LIBC
if (_IO_fwide (stderr, 0) > 0)
putwc (L'\n', stderr);
else
#endif
putc ('\n', stderr);
fflush (stderr);
if (status)
exit (status);
}
/* Print the program name and error message MESSAGE, which is a printf-style
format string with optional args.
If ERRNUM is nonzero, print its corresponding system error message.
Exit with status STATUS if it is nonzero. */
void
error (int status, int errnum, const char *message, ...)
{
va_list args;
#if defined _LIBC && defined __libc_ptf_call
/* We do not want this call to be cut short by a thread
cancellation. Therefore disable cancellation for now. */
int state = PTHREAD_CANCEL_ENABLE;
__libc_ptf_call (pthread_setcancelstate, (PTHREAD_CANCEL_DISABLE, &state),
0);
#endif
fflush (stdout);
#ifdef _LIBC
_IO_flockfile (stderr);
#endif
if (error_print_progname)
(*error_print_progname) ();
else
{
#if _LIBC
if (_IO_fwide (stderr, 0) > 0)
__fwprintf (stderr, L"%s: ", program_name);
else
#endif
fprintf (stderr, "%s: ", program_name);
}
va_start (args, message);
error_tail (status, errnum, message, args);
#ifdef _LIBC
_IO_funlockfile (stderr);
# ifdef __libc_ptf_call
__libc_ptf_call (pthread_setcancelstate, (state, NULL), 0);
# endif
#endif
}
/* Sometimes we want to have at most one error per line. This
variable controls whether this mode is selected or not. */
int error_one_per_line;
void
error_at_line (int status, int errnum, const char *file_name,
unsigned int line_number, const char *message, ...)
{
va_list args;
if (error_one_per_line)
{
static const char *old_file_name;
static unsigned int old_line_number;
if (old_line_number == line_number
&& (file_name == old_file_name
|| strcmp (old_file_name, file_name) == 0))
/* Simply return and print nothing. */
return;
old_file_name = file_name;
old_line_number = line_number;
}
#if defined _LIBC && defined __libc_ptf_call
/* We do not want this call to be cut short by a thread
cancellation. Therefore disable cancellation for now. */
int state = PTHREAD_CANCEL_ENABLE;
__libc_ptf_call (pthread_setcancelstate, (PTHREAD_CANCEL_DISABLE, &state),
0);
#endif
fflush (stdout);
#ifdef _LIBC
_IO_flockfile (stderr);
#endif
if (error_print_progname)
(*error_print_progname) ();
else
{
#if _LIBC
if (_IO_fwide (stderr, 0) > 0)
__fwprintf (stderr, L"%s: ", program_name);
else
#endif
fprintf (stderr, "%s:", program_name);
}
if (file_name != NULL)
{
#if _LIBC
if (_IO_fwide (stderr, 0) > 0)
__fwprintf (stderr, L"%s:%d: ", file_name, line_number);
else
#endif
fprintf (stderr, "%s:%d: ", file_name, line_number);
}
va_start (args, message);
error_tail (status, errnum, message, args);
#ifdef _LIBC
_IO_funlockfile (stderr);
# ifdef __libc_ptf_call
__libc_ptf_call (pthread_setcancelstate, (state, NULL), 0);
# endif
#endif
}
#ifdef _LIBC
/* Make the weak alias. */
# undef error
# undef error_at_line
weak_alias (__error, error)
weak_alias (__error_at_line, error_at_line)
#endif

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/* Declaration for error-reporting function
Copyright (C) 1995, 1996, 1997, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef _ERROR_H
#define _ERROR_H 1
#ifndef __attribute__
/* This feature is available in gcc versions 2.5 and later. */
# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
# define __attribute__(Spec) /* empty */
# endif
/* The __-protected variants of `format' and `printf' attributes
are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
# define __format__ format
# define __printf__ printf
# endif
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* Print a message with `fprintf (stderr, FORMAT, ...)';
if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
If STATUS is nonzero, terminate the program with `exit (STATUS)'. */
extern void error (int __status, int __errnum, const char *__format, ...)
__attribute__ ((__format__ (__printf__, 3, 4)));
extern void error_at_line (int __status, int __errnum, const char *__fname,
unsigned int __lineno, const char *__format, ...)
__attribute__ ((__format__ (__printf__, 5, 6)));
/* If NULL, error will flush stdout, then print on stderr the program
name, a colon and a space. Otherwise, error will call this
function without parameters instead. */
extern void (*error_print_progname) (void);
/* This variable is incremented each time `error' is called. */
extern unsigned int error_message_count;
/* Sometimes we want to have at most one error per line. This
variable controls whether this mode is selected or not. */
extern int error_one_per_line;
#ifdef __cplusplus
}
#endif
#endif /* error.h */

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/* exclude.c -- exclude file names
Copyright (C) 1992, 1993, 1994, 1997, 1999, 2000, 2001, 2002, 2003 Free
Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.
If not, write to the Free Software Foundation,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Paul Eggert <eggert@twinsun.com> */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdbool.h>
#include <ctype.h>
#include <errno.h>
#ifndef errno
extern int errno;
#endif
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "exclude.h"
#include "fnmatch.h"
#include "unlocked-io.h"
#include "xalloc.h"
#if STDC_HEADERS || (! defined isascii && ! HAVE_ISASCII)
# define IN_CTYPE_DOMAIN(c) true
#else
# define IN_CTYPE_DOMAIN(c) isascii (c)
#endif
static inline bool
is_space (unsigned char c)
{
return IN_CTYPE_DOMAIN (c) && isspace (c);
}
/* Verify a requirement at compile-time (unlike assert, which is runtime). */
#define verify(name, assertion) struct name { char a[(assertion) ? 1 : -1]; }
/* Non-GNU systems lack these options, so we don't need to check them. */
#ifndef FNM_CASEFOLD
# define FNM_CASEFOLD 0
#endif
#ifndef FNM_LEADING_DIR
# define FNM_LEADING_DIR 0
#endif
verify (EXCLUDE_macros_do_not_collide_with_FNM_macros,
(((EXCLUDE_ANCHORED | EXCLUDE_INCLUDE | EXCLUDE_WILDCARDS)
& (FNM_PATHNAME | FNM_NOESCAPE | FNM_PERIOD | FNM_LEADING_DIR
| FNM_CASEFOLD))
== 0));
/* An exclude pattern-options pair. The options are fnmatch options
ORed with EXCLUDE_* options. */
struct patopts
{
char const *pattern;
int options;
};
/* An exclude list, of pattern-options pairs. */
struct exclude
{
struct patopts *exclude;
size_t exclude_alloc;
size_t exclude_count;
};
/* Return a newly allocated and empty exclude list. */
struct exclude *
new_exclude (void)
{
return xzalloc (sizeof *new_exclude ());
}
/* Free the storage associated with an exclude list. */
void
free_exclude (struct exclude *ex)
{
free (ex->exclude);
free (ex);
}
/* Return zero if PATTERN matches F, obeying OPTIONS, except that
(unlike fnmatch) wildcards are disabled in PATTERN. */
static int
fnmatch_no_wildcards (char const *pattern, char const *f, int options)
{
if (! (options & FNM_LEADING_DIR))
return ((options & FNM_CASEFOLD)
? strcasecmp (pattern, f)
: strcmp (pattern, f));
else
{
size_t patlen = strlen (pattern);
int r = ((options & FNM_CASEFOLD)
? strncasecmp (pattern, f, patlen)
: strncmp (pattern, f, patlen));
if (! r)
{
r = f[patlen];
if (r == '/')
r = 0;
}
return r;
}
}
/* Return true if EX excludes F. */
bool
excluded_filename (struct exclude const *ex, char const *f)
{
size_t exclude_count = ex->exclude_count;
/* If no options are given, the default is to include. */
if (exclude_count == 0)
return false;
else
{
struct patopts const *exclude = ex->exclude;
size_t i;
/* Otherwise, the default is the opposite of the first option. */
bool excluded = !! (exclude[0].options & EXCLUDE_INCLUDE);
/* Scan through the options, seeing whether they change F from
excluded to included or vice versa. */
for (i = 0; i < exclude_count; i++)
{
char const *pattern = exclude[i].pattern;
int options = exclude[i].options;
if (excluded == !! (options & EXCLUDE_INCLUDE))
{
int (*matcher) (char const *, char const *, int) =
(options & EXCLUDE_WILDCARDS
? fnmatch
: fnmatch_no_wildcards);
bool matched = ((*matcher) (pattern, f, options) == 0);
char const *p;
if (! (options & EXCLUDE_ANCHORED))
for (p = f; *p && ! matched; p++)
if (*p == '/' && p[1] != '/')
matched = ((*matcher) (pattern, p + 1, options) == 0);
excluded ^= matched;
}
}
return excluded;
}
}
/* Append to EX the exclusion PATTERN with OPTIONS. */
void
add_exclude (struct exclude *ex, char const *pattern, int options)
{
struct patopts *patopts;
if (ex->exclude_count == ex->exclude_alloc)
ex->exclude = x2nrealloc (ex->exclude, &ex->exclude_alloc,
sizeof *ex->exclude);
patopts = &ex->exclude[ex->exclude_count++];
patopts->pattern = pattern;
patopts->options = options;
}
/* Use ADD_FUNC to append to EX the patterns in FILENAME, each with
OPTIONS. LINE_END terminates each pattern in the file. If
LINE_END is a space character, ignore trailing spaces and empty
lines in FILE. Return -1 on failure, 0 on success. */
int
add_exclude_file (void (*add_func) (struct exclude *, char const *, int),
struct exclude *ex, char const *filename, int options,
char line_end)
{
bool use_stdin = filename[0] == '-' && !filename[1];
FILE *in;
char *buf = NULL;
char *p;
char const *pattern;
char const *lim;
size_t buf_alloc = 0;
size_t buf_count = 0;
int c;
int e = 0;
if (use_stdin)
in = stdin;
else if (! (in = fopen (filename, "r")))
return -1;
while ((c = getc (in)) != EOF)
{
if (buf_count == buf_alloc)
buf = x2realloc (buf, &buf_alloc);
buf[buf_count++] = c;
}
if (ferror (in))
e = errno;
if (!use_stdin && fclose (in) != 0)
e = errno;
buf = xrealloc (buf, buf_count + 1);
buf[buf_count] = line_end;
lim = buf + buf_count + ! (buf_count == 0 || buf[buf_count - 1] == line_end);
pattern = buf;
for (p = buf; p < lim; p++)
if (*p == line_end)
{
char *pattern_end = p;
if (is_space (line_end))
{
for (; ; pattern_end--)
if (pattern_end == pattern)
goto next_pattern;
else if (! is_space (pattern_end[-1]))
break;
}
*pattern_end = '\0';
(*add_func) (ex, pattern, options);
next_pattern:
pattern = p + 1;
}
errno = e;
return e ? -1 : 0;
}

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/* exclude.h -- declarations for excluding file names
Copyright (C) 1992, 1993, 1994, 1997, 1999, 2001, 2002, 2003 Free
Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.
If not, write to the Free Software Foundation,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Paul Eggert <eggert@twinsun.com> */
/* Exclude options, which can be ORed with fnmatch options. */
/* Patterns must match the start of file names, instead of matching
anywhere after a '/'. */
#define EXCLUDE_ANCHORED (1 << 30)
/* Include instead of exclude. */
#define EXCLUDE_INCLUDE (1 << 29)
/* '?', '*', '[', and '\\' are special in patterns. Without this
option, these characters are ordinary and fnmatch is not used. */
#define EXCLUDE_WILDCARDS (1 << 28)
struct exclude;
struct exclude *new_exclude (void);
void free_exclude (struct exclude *);
void add_exclude (struct exclude *, char const *, int);
int add_exclude_file (void (*) (struct exclude *, char const *, int),
struct exclude *, char const *, int, char);
bool excluded_filename (struct exclude const *, char const *);

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/* exit() function.
Copyright (C) 1995, 2001 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef _EXIT_H
#define _EXIT_H
/* Get exit() declaration. */
#include <stdlib.h>
/* Some systems do not define EXIT_*, even with STDC_HEADERS. */
#ifndef EXIT_SUCCESS
# define EXIT_SUCCESS 0
#endif
#ifndef EXIT_FAILURE
# define EXIT_FAILURE 1
#endif
#endif /* _EXIT_H */

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/* Failure exit status
Copyright (C) 2002, 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.
If not, write to the Free Software Foundation,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include "exitfail.h"
#include "exit.h"
int volatile exit_failure = EXIT_FAILURE;

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/* Failure exit status
Copyright (C) 2002 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.
If not, write to the Free Software Foundation,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
extern int volatile exit_failure;

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/* Return a string describing the type of a file.
Copyright (C) 1993, 1994, 2001, 2002, 2004 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Paul Eggert. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include "file-type.h"
#include <gettext.h>
#define _(text) gettext (text)
char const *
file_type (struct stat const *st)
{
/* See POSIX 1003.1-2001 XCU Table 4-8 lines 17093-17107 for some of
these formats.
To keep diagnostics grammatical in English, the returned string
must start with a consonant. */
if (S_ISREG (st->st_mode))
return st->st_size == 0 ? _("regular empty file") : _("regular file");
if (S_ISDIR (st->st_mode))
return _("directory");
if (S_ISBLK (st->st_mode))
return _("block special file");
if (S_ISCHR (st->st_mode))
return _("character special file");
if (S_ISFIFO (st->st_mode))
return _("fifo");
if (S_ISLNK (st->st_mode))
return _("symbolic link");
if (S_ISSOCK (st->st_mode))
return _("socket");
if (S_TYPEISMQ (st))
return _("message queue");
if (S_TYPEISSEM (st))
return _("semaphore");
if (S_TYPEISSHM (st))
return _("shared memory object");
if (S_TYPEISTMO (st))
return _("typed memory object");
return _("weird file");
}

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/* Return a string describing the type of a file.
Copyright (C) 1993, 1994, 2001, 2002, 2004 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Paul Eggert and Jim Meyering. */
#ifndef FILE_TYPE_H
# define FILE_TYPE_H 1
# if ! defined S_ISREG && ! defined S_IFREG
you must include <sys/stat.h> before including this file
# endif
char const *file_type (struct stat const *);
# ifndef S_IFMT
# define S_IFMT 0170000
# endif
# if STAT_MACROS_BROKEN
# undef S_ISBLK
# undef S_ISCHR
# undef S_ISDIR
# undef S_ISDOOR
# undef S_ISFIFO
# undef S_ISLNK
# undef S_ISNAM
# undef S_ISMPB
# undef S_ISMPC
# undef S_ISNWK
# undef S_ISREG
# undef S_ISSOCK
# endif
# ifndef S_ISBLK
# ifdef S_IFBLK
# define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
# else
# define S_ISBLK(m) 0
# endif
# endif
# ifndef S_ISCHR
# ifdef S_IFCHR
# define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
# else
# define S_ISCHR(m) 0
# endif
# endif
# ifndef S_ISDIR
# ifdef S_IFDIR
# define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
# else
# define S_ISDIR(m) 0
# endif
# endif
# ifndef S_ISDOOR /* Solaris 2.5 and up */
# ifdef S_IFDOOR
# define S_ISDOOR(m) (((m) & S_IFMT) == S_IFDOOR)
# else
# define S_ISDOOR(m) 0
# endif
# endif
# ifndef S_ISFIFO
# ifdef S_IFIFO
# define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
# else
# define S_ISFIFO(m) 0
# endif
# endif
# ifndef S_ISLNK
# ifdef S_IFLNK
# define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
# else
# define S_ISLNK(m) 0
# endif
# endif
# ifndef S_ISMPB /* V7 */
# ifdef S_IFMPB
# define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
# define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
# else
# define S_ISMPB(m) 0
# define S_ISMPC(m) 0
# endif
# endif
# ifndef S_ISNAM /* Xenix */
# ifdef S_IFNAM
# define S_ISNAM(m) (((m) & S_IFMT) == S_IFNAM)
# else
# define S_ISNAM(m) 0
# endif
# endif
# ifndef S_ISNWK /* HP/UX */
# ifdef S_IFNWK
# define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
# else
# define S_ISNWK(m) 0
# endif
# endif
# ifndef S_ISREG
# ifdef S_IFREG
# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
# else
# define S_ISREG(m) 0
# endif
# endif
# ifndef S_ISSOCK
# ifdef S_IFSOCK
# define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
# else
# define S_ISSOCK(m) 0
# endif
# endif
# ifndef S_TYPEISMQ
# define S_TYPEISMQ(p) 0
# endif
# ifndef S_TYPEISTMO
# define S_TYPEISTMO(p) 0
# endif
# ifndef S_TYPEISSEM
# ifdef S_INSEM
# define S_TYPEISSEM(p) (S_ISNAM ((p)->st_mode) && (p)->st_rdev == S_INSEM)
# else
# define S_TYPEISSEM(p) 0
# endif
# endif
# ifndef S_TYPEISSHM
# ifdef S_INSHD
# define S_TYPEISSHM(p) (S_ISNAM ((p)->st_mode) && (p)->st_rdev == S_INSHD)
# else
# define S_TYPEISSHM(p) 0
# endif
# endif
#endif /* FILE_TYPE_H */

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/* Copyright (C) 1991,1992,1993,1996,1997,1998,1999,2000,2001,2002,2003,2004
Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
/* Enable GNU extensions in fnmatch.h. */
#ifndef _GNU_SOURCE
# define _GNU_SOURCE 1
#endif
#ifdef __GNUC__
# define alloca __builtin_alloca
# define HAVE_ALLOCA 1
#else
# if defined HAVE_ALLOCA_H || defined _LIBC
# include <alloca.h>
# else
# ifdef _AIX
# pragma alloca
# else
# ifndef alloca
char *alloca ();
# endif
# endif
# endif
#endif
#if ! defined __builtin_expect && __GNUC__ < 3
# define __builtin_expect(expr, expected) (expr)
#endif
#include <fnmatch.h>
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#define WIDE_CHAR_SUPPORT (HAVE_WCTYPE_H && HAVE_WCHAR_H && HAVE_BTOWC)
/* For platform which support the ISO C amendement 1 functionality we
support user defined character classes. */
#if defined _LIBC || WIDE_CHAR_SUPPORT
/* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>. */
# include <wchar.h>
# include <wctype.h>
#endif
/* We need some of the locale data (the collation sequence information)
but there is no interface to get this information in general. Therefore
we support a correct implementation only in glibc. */
#ifdef _LIBC
# include "../locale/localeinfo.h"
# include "../locale/elem-hash.h"
# include "../locale/coll-lookup.h"
# include <shlib-compat.h>
# define CONCAT(a,b) __CONCAT(a,b)
# define mbsrtowcs __mbsrtowcs
# define fnmatch __fnmatch
extern int fnmatch (const char *pattern, const char *string, int flags);
#endif
#ifndef SIZE_MAX
# define SIZE_MAX ((size_t) -1)
#endif
/* We often have to test for FNM_FILE_NAME and FNM_PERIOD being both set. */
#define NO_LEADING_PERIOD(flags) \
((flags & (FNM_FILE_NAME | FNM_PERIOD)) == (FNM_FILE_NAME | FNM_PERIOD))
/* Comment out all this code if we are using the GNU C Library, and are not
actually compiling the library itself, and have not detected a bug
in the library. This code is part of the GNU C
Library, but also included in many other GNU distributions. Compiling
and linking in this code is a waste when using the GNU C library
(especially if it is a shared library). Rather than having every GNU
program understand `configure --with-gnu-libc' and omit the object files,
it is simpler to just do this in the source for each such file. */
#if defined _LIBC || !defined __GNU_LIBRARY__ || !HAVE_FNMATCH_GNU
# if defined STDC_HEADERS || !defined isascii
# define ISASCII(c) 1
# else
# define ISASCII(c) isascii(c)
# endif
# ifdef isblank
# define ISBLANK(c) (ISASCII (c) && isblank (c))
# else
# define ISBLANK(c) ((c) == ' ' || (c) == '\t')
# endif
# ifdef isgraph
# define ISGRAPH(c) (ISASCII (c) && isgraph (c))
# else
# define ISGRAPH(c) (ISASCII (c) && isprint (c) && !isspace (c))
# endif
# define ISPRINT(c) (ISASCII (c) && isprint (c))
# define ISDIGIT(c) (ISASCII (c) && isdigit (c))
# define ISALNUM(c) (ISASCII (c) && isalnum (c))
# define ISALPHA(c) (ISASCII (c) && isalpha (c))
# define ISCNTRL(c) (ISASCII (c) && iscntrl (c))
# define ISLOWER(c) (ISASCII (c) && islower (c))
# define ISPUNCT(c) (ISASCII (c) && ispunct (c))
# define ISSPACE(c) (ISASCII (c) && isspace (c))
# define ISUPPER(c) (ISASCII (c) && isupper (c))
# define ISXDIGIT(c) (ISASCII (c) && isxdigit (c))
# define STREQ(s1, s2) ((strcmp (s1, s2) == 0))
# if defined _LIBC || WIDE_CHAR_SUPPORT
/* The GNU C library provides support for user-defined character classes
and the functions from ISO C amendement 1. */
# ifdef CHARCLASS_NAME_MAX
# define CHAR_CLASS_MAX_LENGTH CHARCLASS_NAME_MAX
# else
/* This shouldn't happen but some implementation might still have this
problem. Use a reasonable default value. */
# define CHAR_CLASS_MAX_LENGTH 256
# endif
# ifdef _LIBC
# define IS_CHAR_CLASS(string) __wctype (string)
# else
# define IS_CHAR_CLASS(string) wctype (string)
# endif
# ifdef _LIBC
# define ISWCTYPE(WC, WT) __iswctype (WC, WT)
# else
# define ISWCTYPE(WC, WT) iswctype (WC, WT)
# endif
# if (HAVE_MBSTATE_T && HAVE_MBSRTOWCS) || _LIBC
/* In this case we are implementing the multibyte character handling. */
# define HANDLE_MULTIBYTE 1
# endif
# else
# define CHAR_CLASS_MAX_LENGTH 6 /* Namely, `xdigit'. */
# define IS_CHAR_CLASS(string) \
(STREQ (string, "alpha") || STREQ (string, "upper") \
|| STREQ (string, "lower") || STREQ (string, "digit") \
|| STREQ (string, "alnum") || STREQ (string, "xdigit") \
|| STREQ (string, "space") || STREQ (string, "print") \
|| STREQ (string, "punct") || STREQ (string, "graph") \
|| STREQ (string, "cntrl") || STREQ (string, "blank"))
# endif
/* Avoid depending on library functions or files
whose names are inconsistent. */
# ifndef errno
extern int errno;
# endif
/* Global variable. */
static int posixly_correct;
# ifndef internal_function
/* Inside GNU libc we mark some function in a special way. In other
environments simply ignore the marking. */
# define internal_function
# endif
/* Note that this evaluates C many times. */
# ifdef _LIBC
# define FOLD(c) ((flags & FNM_CASEFOLD) ? tolower (c) : (c))
# else
# define FOLD(c) ((flags & FNM_CASEFOLD) && ISUPPER (c) ? tolower (c) : (c))
# endif
# define CHAR char
# define UCHAR unsigned char
# define INT int
# define FCT internal_fnmatch
# define EXT ext_match
# define END end_pattern
# define L(CS) CS
# ifdef _LIBC
# define BTOWC(C) __btowc (C)
# else
# define BTOWC(C) btowc (C)
# endif
# define STRLEN(S) strlen (S)
# define STRCAT(D, S) strcat (D, S)
# ifdef _LIBC
# define MEMPCPY(D, S, N) __mempcpy (D, S, N)
# else
# if HAVE_MEMPCPY
# define MEMPCPY(D, S, N) mempcpy (D, S, N)
# else
# define MEMPCPY(D, S, N) ((void *) ((char *) memcpy (D, S, N) + (N)))
# endif
# endif
# define MEMCHR(S, C, N) memchr (S, C, N)
# define STRCOLL(S1, S2) strcoll (S1, S2)
# include "fnmatch_loop.c"
# if HANDLE_MULTIBYTE
# define FOLD(c) ((flags & FNM_CASEFOLD) ? towlower (c) : (c))
# define CHAR wchar_t
# define UCHAR wint_t
# define INT wint_t
# define FCT internal_fnwmatch
# define EXT ext_wmatch
# define END end_wpattern
# define L(CS) L##CS
# define BTOWC(C) (C)
# ifdef _LIBC
# define STRLEN(S) __wcslen (S)
# define STRCAT(D, S) __wcscat (D, S)
# define MEMPCPY(D, S, N) __wmempcpy (D, S, N)
# else
# define STRLEN(S) wcslen (S)
# define STRCAT(D, S) wcscat (D, S)
# if HAVE_WMEMPCPY
# define MEMPCPY(D, S, N) wmempcpy (D, S, N)
# else
# define MEMPCPY(D, S, N) (wmemcpy (D, S, N) + (N))
# endif
# endif
# define MEMCHR(S, C, N) wmemchr (S, C, N)
# define STRCOLL(S1, S2) wcscoll (S1, S2)
# define WIDE_CHAR_VERSION 1
# undef IS_CHAR_CLASS
/* We have to convert the wide character string in a multibyte string. But
we know that the character class names consist of alphanumeric characters
from the portable character set, and since the wide character encoding
for a member of the portable character set is the same code point as
its single-byte encoding, we can use a simplified method to convert the
string to a multibyte character string. */
static wctype_t
is_char_class (const wchar_t *wcs)
{
char s[CHAR_CLASS_MAX_LENGTH + 1];
char *cp = s;
do
{
/* Test for a printable character from the portable character set. */
# ifdef _LIBC
if (*wcs < 0x20 || *wcs > 0x7e
|| *wcs == 0x24 || *wcs == 0x40 || *wcs == 0x60)
return (wctype_t) 0;
# else
switch (*wcs)
{
case L' ': case L'!': case L'"': case L'#': case L'%':
case L'&': case L'\'': case L'(': case L')': case L'*':
case L'+': case L',': case L'-': case L'.': case L'/':
case L'0': case L'1': case L'2': case L'3': case L'4':
case L'5': case L'6': case L'7': case L'8': case L'9':
case L':': case L';': case L'<': case L'=': case L'>':
case L'?':
case L'A': case L'B': case L'C': case L'D': case L'E':
case L'F': case L'G': case L'H': case L'I': case L'J':
case L'K': case L'L': case L'M': case L'N': case L'O':
case L'P': case L'Q': case L'R': case L'S': case L'T':
case L'U': case L'V': case L'W': case L'X': case L'Y':
case L'Z':
case L'[': case L'\\': case L']': case L'^': case L'_':
case L'a': case L'b': case L'c': case L'd': case L'e':
case L'f': case L'g': case L'h': case L'i': case L'j':
case L'k': case L'l': case L'm': case L'n': case L'o':
case L'p': case L'q': case L'r': case L's': case L't':
case L'u': case L'v': case L'w': case L'x': case L'y':
case L'z': case L'{': case L'|': case L'}': case L'~':
break;
default:
return (wctype_t) 0;
}
# endif
/* Avoid overrunning the buffer. */
if (cp == s + CHAR_CLASS_MAX_LENGTH)
return (wctype_t) 0;
*cp++ = (char) *wcs++;
}
while (*wcs != L'\0');
*cp = '\0';
# ifdef _LIBC
return __wctype (s);
# else
return wctype (s);
# endif
}
# define IS_CHAR_CLASS(string) is_char_class (string)
# include "fnmatch_loop.c"
# endif
int
fnmatch (const char *pattern, const char *string, int flags)
{
# if HANDLE_MULTIBYTE
# define ALLOCA_LIMIT 2000
if (__builtin_expect (MB_CUR_MAX, 1) != 1)
{
mbstate_t ps;
size_t patsize;
size_t strsize;
size_t totsize;
wchar_t *wpattern;
wchar_t *wstring;
int res;
/* Calculate the size needed to convert the strings to
wide characters. */
memset (&ps, '\0', sizeof (ps));
patsize = mbsrtowcs (NULL, &pattern, 0, &ps) + 1;
if (__builtin_expect (patsize == 0, 0))
/* Something wrong.
XXX Do we have to set `errno' to something which mbsrtows hasn't
already done? */
return -1;
assert (mbsinit (&ps));
strsize = mbsrtowcs (NULL, &string, 0, &ps) + 1;
if (__builtin_expect (strsize == 0, 0))
/* Something wrong.
XXX Do we have to set `errno' to something which mbsrtows hasn't
already done? */
return -1;
assert (mbsinit (&ps));
totsize = patsize + strsize;
if (__builtin_expect (! (patsize <= totsize
&& totsize <= SIZE_MAX / sizeof (wchar_t)),
0))
{
errno = ENOMEM;
return -1;
}
/* Allocate room for the wide characters. */
if (__builtin_expect (totsize < ALLOCA_LIMIT, 1))
wpattern = (wchar_t *) alloca (totsize * sizeof (wchar_t));
else
{
wpattern = malloc (totsize * sizeof (wchar_t));
if (__builtin_expect (! wpattern, 0))
{
errno = ENOMEM;
return -1;
}
}
wstring = wpattern + patsize;
/* Convert the strings into wide characters. */
mbsrtowcs (wpattern, &pattern, patsize, &ps);
assert (mbsinit (&ps));
mbsrtowcs (wstring, &string, strsize, &ps);
res = internal_fnwmatch (wpattern, wstring, wstring + strsize - 1,
flags & FNM_PERIOD, flags);
if (__builtin_expect (! (totsize < ALLOCA_LIMIT), 0))
free (wpattern);
return res;
}
# endif /* HANDLE_MULTIBYTE */
return internal_fnmatch (pattern, string, string + strlen (string),
flags & FNM_PERIOD, flags);
}
# ifdef _LIBC
# undef fnmatch
versioned_symbol (libc, __fnmatch, fnmatch, GLIBC_2_2_3);
# if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_2_3)
strong_alias (__fnmatch, __fnmatch_old)
compat_symbol (libc, __fnmatch_old, fnmatch, GLIBC_2_0);
# endif
libc_hidden_ver (__fnmatch, fnmatch)
# endif
#endif /* _LIBC or not __GNU_LIBRARY__. */

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/* Copyright (C) 1991, 1992, 1993, 1996, 1997, 1998, 1999, 2001, 2002, 2003
Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef _FNMATCH_H
# define _FNMATCH_H 1
# ifdef __cplusplus
extern "C" {
# endif
/* We #undef these before defining them because some losing systems
(HP-UX A.08.07 for example) define these in <unistd.h>. */
# undef FNM_PATHNAME
# undef FNM_NOESCAPE
# undef FNM_PERIOD
/* Bits set in the FLAGS argument to `fnmatch'. */
# define FNM_PATHNAME (1 << 0) /* No wildcard can ever match `/'. */
# define FNM_NOESCAPE (1 << 1) /* Backslashes don't quote special chars. */
# define FNM_PERIOD (1 << 2) /* Leading `.' is matched only explicitly. */
# if !defined _POSIX_C_SOURCE || _POSIX_C_SOURCE < 2 || defined _GNU_SOURCE
# define FNM_FILE_NAME FNM_PATHNAME /* Preferred GNU name. */
# define FNM_LEADING_DIR (1 << 3) /* Ignore `/...' after a match. */
# define FNM_CASEFOLD (1 << 4) /* Compare without regard to case. */
# define FNM_EXTMATCH (1 << 5) /* Use ksh-like extended matching. */
# endif
/* Value returned by `fnmatch' if STRING does not match PATTERN. */
# define FNM_NOMATCH 1
/* This value is returned if the implementation does not support
`fnmatch'. Since this is not the case here it will never be
returned but the conformance test suites still require the symbol
to be defined. */
# ifdef _XOPEN_SOURCE
# define FNM_NOSYS (-1)
# endif
/* Match NAME against the filename pattern PATTERN,
returning zero if it matches, FNM_NOMATCH if not. */
extern int fnmatch (const char *__pattern, const char *__name,
int __flags);
# ifdef __cplusplus
}
# endif
#endif /* fnmatch.h */

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/* Declarations for getopt.
Copyright (C) 1989-1994,1996-1999,2001,2003,2004
Free Software Foundation, Inc.
This file is part of the GNU C Library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef _GETOPT_H
#ifndef __need_getopt
# define _GETOPT_H 1
#endif
/* If __GNU_LIBRARY__ is not already defined, either we are being used
standalone, or this is the first header included in the source file.
If we are being used with glibc, we need to include <features.h>, but
that does not exist if we are standalone. So: if __GNU_LIBRARY__ is
not defined, include <ctype.h>, which will pull in <features.h> for us
if it's from glibc. (Why ctype.h? It's guaranteed to exist and it
doesn't flood the namespace with stuff the way some other headers do.) */
#if !defined __GNU_LIBRARY__
# include <ctype.h>
#endif
#ifndef __THROW
# ifndef __GNUC_PREREQ
# define __GNUC_PREREQ(maj, min) (0)
# endif
# if defined __cplusplus && __GNUC_PREREQ (2,8)
# define __THROW throw ()
# else
# define __THROW
# endif
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* For communication from `getopt' to the caller.
When `getopt' finds an option that takes an argument,
the argument value is returned here.
Also, when `ordering' is RETURN_IN_ORDER,
each non-option ARGV-element is returned here. */
extern char *optarg;
/* Index in ARGV of the next element to be scanned.
This is used for communication to and from the caller
and for communication between successive calls to `getopt'.
On entry to `getopt', zero means this is the first call; initialize.
When `getopt' returns -1, this is the index of the first of the
non-option elements that the caller should itself scan.
Otherwise, `optind' communicates from one call to the next
how much of ARGV has been scanned so far. */
extern int optind;
/* Callers store zero here to inhibit the error message `getopt' prints
for unrecognized options. */
extern int opterr;
/* Set to an option character which was unrecognized. */
extern int optopt;
#ifndef __need_getopt
/* Describe the long-named options requested by the application.
The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
of `struct option' terminated by an element containing a name which is
zero.
The field `has_arg' is:
no_argument (or 0) if the option does not take an argument,
required_argument (or 1) if the option requires an argument,
optional_argument (or 2) if the option takes an optional argument.
If the field `flag' is not NULL, it points to a variable that is set
to the value given in the field `val' when the option is found, but
left unchanged if the option is not found.
To have a long-named option do something other than set an `int' to
a compiled-in constant, such as set a value from `optarg', set the
option's `flag' field to zero and its `val' field to a nonzero
value (the equivalent single-letter option character, if there is
one). For long options that have a zero `flag' field, `getopt'
returns the contents of the `val' field. */
struct option
{
const char *name;
/* has_arg can't be an enum because some compilers complain about
type mismatches in all the code that assumes it is an int. */
int has_arg;
int *flag;
int val;
};
/* Names for the values of the `has_arg' field of `struct option'. */
# define no_argument 0
# define required_argument 1
# define optional_argument 2
#endif /* need getopt */
/* Get definitions and prototypes for functions to process the
arguments in ARGV (ARGC of them, minus the program name) for
options given in OPTS.
Return the option character from OPTS just read. Return -1 when
there are no more options. For unrecognized options, or options
missing arguments, `optopt' is set to the option letter, and '?' is
returned.
The OPTS string is a list of characters which are recognized option
letters, optionally followed by colons, specifying that that letter
takes an argument, to be placed in `optarg'.
If a letter in OPTS is followed by two colons, its argument is
optional. This behavior is specific to the GNU `getopt'.
The argument `--' causes premature termination of argument
scanning, explicitly telling `getopt' that there are no more
options.
If OPTS begins with `--', then non-option arguments are treated as
arguments to the option '\0'. This behavior is specific to the GNU
`getopt'. */
#ifdef __GNU_LIBRARY__
/* Many other libraries have conflicting prototypes for getopt, with
differences in the consts, in stdlib.h. To avoid compilation
errors, only prototype getopt for the GNU C library. */
extern int getopt (int ___argc, char *const *___argv, const char *__shortopts)
__THROW;
#else /* not __GNU_LIBRARY__ */
extern int getopt ();
#endif /* __GNU_LIBRARY__ */
#ifndef __need_getopt
extern int getopt_long (int ___argc, char *const *___argv,
const char *__shortopts,
const struct option *__longopts, int *__longind)
__THROW;
extern int getopt_long_only (int ___argc, char *const *___argv,
const char *__shortopts,
const struct option *__longopts, int *__longind)
__THROW;
#endif
#ifdef __cplusplus
}
#endif
/* Make sure we later can get all the definitions and declarations. */
#undef __need_getopt
#endif /* getopt.h */

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/* getopt_long and getopt_long_only entry points for GNU getopt.
Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98,2004
Free Software Foundation, Inc.
This file is part of the GNU C Library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef _LIBC
# include <getopt.h>
#else
# include "getopt.h"
#endif
#include "getopt_int.h"
#include <stdio.h>
/* Comment out all this code if we are using the GNU C Library, and are not
actually compiling the library itself. This code is part of the GNU C
Library, but also included in many other GNU distributions. Compiling
and linking in this code is a waste when using the GNU C library
(especially if it is a shared library). Rather than having every GNU
program understand `configure --with-gnu-libc' and omit the object files,
it is simpler to just do this in the source for each such file. */
#define GETOPT_INTERFACE_VERSION 2
#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
#include <gnu-versions.h>
#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
#define ELIDE_CODE
#endif
#endif
#ifndef ELIDE_CODE
/* This needs to come after some library #include
to get __GNU_LIBRARY__ defined. */
#ifdef __GNU_LIBRARY__
#include <stdlib.h>
#endif
#ifndef NULL
#define NULL 0
#endif
int
getopt_long (int argc, char *const *argv, const char *options,
const struct option *long_options, int *opt_index)
{
return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
}
int
_getopt_long_r (int argc, char *const *argv, const char *options,
const struct option *long_options, int *opt_index,
struct _getopt_data *d)
{
return _getopt_internal_r (argc, argv, options, long_options, opt_index,
0, d);
}
/* Like getopt_long, but '-' as well as '--' can indicate a long option.
If an option that starts with '-' (not '--') doesn't match a long option,
but does match a short option, it is parsed as a short option
instead. */
int
getopt_long_only (int argc, char *const *argv, const char *options,
const struct option *long_options, int *opt_index)
{
return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
}
int
_getopt_long_only_r (int argc, char *const *argv, const char *options,
const struct option *long_options, int *opt_index,
struct _getopt_data *d)
{
return _getopt_internal_r (argc, argv, options, long_options, opt_index,
1, d);
}
#endif /* Not ELIDE_CODE. */
#ifdef TEST
#include <stdio.h>
int
main (int argc, char **argv)
{
int c;
int digit_optind = 0;
while (1)
{
int this_option_optind = optind ? optind : 1;
int option_index = 0;
static struct option long_options[] =
{
{"add", 1, 0, 0},
{"append", 0, 0, 0},
{"delete", 1, 0, 0},
{"verbose", 0, 0, 0},
{"create", 0, 0, 0},
{"file", 1, 0, 0},
{0, 0, 0, 0}
};
c = getopt_long (argc, argv, "abc:d:0123456789",
long_options, &option_index);
if (c == -1)
break;
switch (c)
{
case 0:
printf ("option %s", long_options[option_index].name);
if (optarg)
printf (" with arg %s", optarg);
printf ("\n");
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
if (digit_optind != 0 && digit_optind != this_option_optind)
printf ("digits occur in two different argv-elements.\n");
digit_optind = this_option_optind;
printf ("option %c\n", c);
break;
case 'a':
printf ("option a\n");
break;
case 'b':
printf ("option b\n");
break;
case 'c':
printf ("option c with value `%s'\n", optarg);
break;
case 'd':
printf ("option d with value `%s'\n", optarg);
break;
case '?':
break;
default:
printf ("?? getopt returned character code 0%o ??\n", c);
}
}
if (optind < argc)
{
printf ("non-option ARGV-elements: ");
while (optind < argc)
printf ("%s ", argv[optind++]);
printf ("\n");
}
exit (0);
}
#endif /* TEST */

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/* Internal declarations for getopt.
Copyright (C) 1989-1994,1996-1999,2001,2003,2004
Free Software Foundation, Inc.
This file is part of the GNU C Library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef _GETOPT_INT_H
#define _GETOPT_INT_H 1
extern int _getopt_internal (int ___argc, char *const *___argv,
const char *__shortopts,
const struct option *__longopts, int *__longind,
int __long_only);
/* Reentrant versions which can handle parsing multiple argument
vectors at the same time. */
/* Data type for reentrant functions. */
struct _getopt_data
{
/* These have exactly the same meaning as the corresponding global
variables, except that they are used for the reentrant
versions of getopt. */
int optind;
int opterr;
int optopt;
char *optarg;
/* Internal members. */
/* True if the internal members have been initialized. */
int __initialized;
/* The next char to be scanned in the option-element
in which the last option character we returned was found.
This allows us to pick up the scan where we left off.
If this is zero, or a null string, it means resume the scan
by advancing to the next ARGV-element. */
char *__nextchar;
/* Describe how to deal with options that follow non-option ARGV-elements.
If the caller did not specify anything,
the default is REQUIRE_ORDER if the environment variable
POSIXLY_CORRECT is defined, PERMUTE otherwise.
REQUIRE_ORDER means don't recognize them as options;
stop option processing when the first non-option is seen.
This is what Unix does.
This mode of operation is selected by either setting the environment
variable POSIXLY_CORRECT, or using `+' as the first character
of the list of option characters.
PERMUTE is the default. We permute the contents of ARGV as we
scan, so that eventually all the non-options are at the end.
This allows options to be given in any order, even with programs
that were not written to expect this.
RETURN_IN_ORDER is an option available to programs that were
written to expect options and other ARGV-elements in any order
and that care about the ordering of the two. We describe each
non-option ARGV-element as if it were the argument of an option
with character code 1. Using `-' as the first character of the
list of option characters selects this mode of operation.
The special argument `--' forces an end of option-scanning regardless
of the value of `ordering'. In the case of RETURN_IN_ORDER, only
`--' can cause `getopt' to return -1 with `optind' != ARGC. */
enum
{
REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
} __ordering;
/* If the POSIXLY_CORRECT environment variable is set. */
int __posixly_correct;
/* Handle permutation of arguments. */
/* Describe the part of ARGV that contains non-options that have
been skipped. `first_nonopt' is the index in ARGV of the first
of them; `last_nonopt' is the index after the last of them. */
int __first_nonopt;
int __last_nonopt;
#if defined _LIBC && defined USE_NONOPTION_FLAGS
int __nonoption_flags_max_len;
int __nonoption_flags_len;
# endif
};
/* The initializer is necessary to set OPTIND and OPTERR to their
default values and to clear the initialization flag. */
#define _GETOPT_DATA_INITIALIZER { 1, 1 }
extern int _getopt_internal_r (int ___argc, char *const *___argv,
const char *__shortopts,
const struct option *__longopts, int *__longind,
int __long_only, struct _getopt_data *__data);
extern int _getopt_long_r (int ___argc, char *const *___argv,
const char *__shortopts,
const struct option *__longopts, int *__longind,
struct _getopt_data *__data);
extern int _getopt_long_only_r (int ___argc, char *const *___argv,
const char *__shortopts,
const struct option *__longopts,
int *__longind,
struct _getopt_data *__data);
#endif /* getopt_int.h */

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/* Convenience header for conditional use of GNU <libintl.h>.
Copyright (C) 1995-1998, 2000-2002 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef _LIBGETTEXT_H
#define _LIBGETTEXT_H 1
/* NLS can be disabled through the configure --disable-nls option. */
#if ENABLE_NLS
/* Get declarations of GNU message catalog functions. */
# include <libintl.h>
#else
/* Solaris /usr/include/locale.h includes /usr/include/libintl.h, which
chokes if dcgettext is defined as a macro. So include it now, to make
later inclusions of <locale.h> a NOP. We don't include <libintl.h>
as well because people using "gettext.h" will not include <libintl.h>,
and also including <libintl.h> would fail on SunOS 4, whereas <locale.h>
is OK. */
#if defined(__sun)
# include <locale.h>
#endif
/* Disabled NLS.
The casts to 'const char *' serve the purpose of producing warnings
for invalid uses of the value returned from these functions.
On pre-ANSI systems without 'const', the config.h file is supposed to
contain "#define const". */
# define gettext(Msgid) ((const char *) (Msgid))
# define dgettext(Domainname, Msgid) ((const char *) (Msgid))
# define dcgettext(Domainname, Msgid, Category) ((const char *) (Msgid))
# define ngettext(Msgid1, Msgid2, N) \
((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
# define dngettext(Domainname, Msgid1, Msgid2, N) \
((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
# define dcngettext(Domainname, Msgid1, Msgid2, N, Category) \
((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
# define textdomain(Domainname) ((const char *) (Domainname))
# define bindtextdomain(Domainname, Dirname) ((const char *) (Dirname))
# define bind_textdomain_codeset(Domainname, Codeset) ((const char *) (Codeset))
#endif
/* A pseudo function call that serves as a marker for the automated
extraction of messages, but does not call gettext(). The run-time
translation is done at a different place in the code.
The argument, String, should be a literal string. Concatenated strings
and other string expressions won't work.
The macro's expansion is not parenthesized, so that it is suitable as
initializer for static 'char[]' or 'const char[]' variables. */
#define gettext_noop(String) String
#endif /* _LIBGETTEXT_H */

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/* Work around the bug in some systems whereby gettimeofday clobbers the
static buffer that localtime uses for it's return value. The gettimeofday
function from Mac OS X 10.0.4, i.e. Darwin 1.3.7 has this problem.
The tzset replacement is necessary for at least Solaris 2.5, 2.5.1, and 2.6.
Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* written by Jim Meyering */
#include <config.h>
/* Disable the definitions of these functions (from config.h)
so we can use the library versions here. */
#undef gettimeofday
#undef gmtime
#undef localtime
#undef tzset
#include <sys/types.h>
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
#include <stdlib.h>
static struct tm *localtime_buffer_addr;
/* This is a wrapper for localtime. It is used only on systems for which
gettimeofday clobbers the static buffer used for localtime's result.
On the first call, record the address of the static buffer that
localtime uses for its result. */
struct tm *
rpl_localtime (const time_t *timep)
{
struct tm *tm = localtime (timep);
if (! localtime_buffer_addr)
localtime_buffer_addr = tm;
return tm;
}
/* Same as above, since gmtime and localtime use the same buffer. */
struct tm *
rpl_gmtime (const time_t *timep)
{
struct tm *tm = gmtime (timep);
if (! localtime_buffer_addr)
localtime_buffer_addr = tm;
return tm;
}
/* This is a wrapper for gettimeofday. It is used only on systems for which
gettimeofday clobbers the static buffer used for localtime's result.
Save and restore the contents of the buffer used for localtime's result
around the call to gettimeofday. */
int
rpl_gettimeofday (struct timeval *tv, struct timezone *tz)
{
struct tm save;
int result;
if (! localtime_buffer_addr)
{
time_t t = 0;
localtime_buffer_addr = localtime (&t);
}
save = *localtime_buffer_addr;
result = gettimeofday (tv, tz);
*localtime_buffer_addr = save;
return result;
}
/* This is a wrapper for tzset. It is used only on systems for which
tzset may clobber the static buffer used for localtime's result.
Save and restore the contents of the buffer used for localtime's
result around the call to tzset. */
void
rpl_tzset (void)
{
struct tm save;
if (! localtime_buffer_addr)
{
time_t t = 0;
localtime_buffer_addr = localtime (&t);
}
save = *localtime_buffer_addr;
tzset ();
*localtime_buffer_addr = save;
}

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# This file is generated automatically by "bootstrap".
BUILT_SOURCES += $(ALLOCA_H)
EXTRA_DIST += alloca_.h
# We need the following in order to create an <alloca.h> when the system
# doesn't have one that works with the given compiler.
all-local $(lib_OBJECTS): $(ALLOCA_H)
alloca.h: alloca_.h
cp $(srcdir)/alloca_.h $@-t
mv $@-t $@
MOSTLYCLEANFILES += alloca.h alloca.h-t
lib_SOURCES += c-stack.h c-stack.c
lib_SOURCES += dirname.h dirname.c basename.c stripslash.c
lib_SOURCES += exclude.h exclude.c
lib_SOURCES += exit.h
lib_SOURCES += exitfail.h exitfail.c
lib_SOURCES += file-type.h file-type.c
BUILT_SOURCES += $(FNMATCH_H)
EXTRA_DIST += fnmatch_.h fnmatch_loop.c
# We need the following in order to create an <fnmatch.h> when the system
# doesn't have one that supports the required API.
all-local $(lib_OBJECTS): $(FNMATCH_H)
fnmatch.h: fnmatch_.h
cp $(srcdir)/fnmatch_.h $@-t
mv $@-t $@
MOSTLYCLEANFILES += fnmatch.h fnmatch.h-t
lib_SOURCES += getopt.h getopt.c getopt1.c getopt_int.h
lib_SOURCES += gettext.h
lib_SOURCES += hard-locale.h hard-locale.c
EXTRA_DIST += inttostr.c
lib_SOURCES += imaxtostr.c inttostr.h offtostr.c umaxtostr.c
lib_SOURCES += posixver.h posixver.c
lib_SOURCES += regex.h
BUILT_SOURCES += $(STDBOOL_H)
EXTRA_DIST += stdbool_.h
# We need the following in order to create an <stdbool.h> when the system
# doesn't have one that works.
all-local $(lib_OBJECTS): $(STDBOOL_H)
stdbool.h: stdbool_.h
sed -e 's/@''HAVE__BOOL''@/$(HAVE__BOOL)/g' < $(srcdir)/stdbool_.h > $@-t
mv $@-t $@
MOSTLYCLEANFILES += stdbool.h stdbool.h-t
lib_SOURCES += strcase.h
lib_SOURCES += strftime.c
lib_SOURCES += time_r.h
lib_SOURCES += unlocked-io.h
lib_SOURCES += version-etc.h version-etc.c
lib_SOURCES += xalloc.h xmalloc.c xstrdup.c
lib_SOURCES += xstrtol.h xstrtol.c xstrtoul.c
lib_SOURCES += xstrtoumax.c

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/* hard-locale.c -- Determine whether a locale is hard.
Copyright (C) 1997, 1998, 1999, 2002, 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include "hard-locale.h"
#if HAVE_LOCALE_H
# include <locale.h>
#endif
#include <stdlib.h>
#include <string.h>
/* Return nonzero if the current CATEGORY locale is hard, i.e. if you
can't get away with assuming traditional C or POSIX behavior. */
int
hard_locale (int category)
{
#if ! HAVE_SETLOCALE
return 0;
#else
int hard = 1;
char const *p = setlocale (category, 0);
if (p)
{
# if defined __GLIBC__ && 2 <= __GLIBC__
if (strcmp (p, "C") == 0 || strcmp (p, "POSIX") == 0)
hard = 0;
# else
char *locale = malloc (strlen (p) + 1);
if (locale)
{
strcpy (locale, p);
/* Temporarily set the locale to the "C" and "POSIX" locales
to find their names, so that we can determine whether one
or the other is the caller's locale. */
if (((p = setlocale (category, "C"))
&& strcmp (p, locale) == 0)
|| ((p = setlocale (category, "POSIX"))
&& strcmp (p, locale) == 0))
hard = 0;
/* Restore the caller's locale. */
setlocale (category, locale);
free (locale);
}
# endif
}
return hard;
#endif
}

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/* Determine whether a locale is hard.
Copyright (C) 1999, 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef HARD_LOCALE_H_
# define HARD_LOCALE_H_ 1
int hard_locale (int);
#endif /* HARD_LOCALE_H_ */

3
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#define inttostr imaxtostr
#define inttype intmax_t
#include "inttostr.c"

49
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/* inttostr.c -- convert integers to printable strings
Copyright (C) 2001 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Paul Eggert */
#include "inttostr.h"
/* Convert I to a printable string in BUF, which must be at least
INT_BUFSIZE_BOUND (INTTYPE) bytes long. Return the address of the
printable string, which need not start at BUF. */
char *
inttostr (inttype i, char *buf)
{
char *p = buf + INT_STRLEN_BOUND (inttype);
*p = 0;
if (i < 0)
{
do
*--p = '0' - i % 10;
while ((i /= 10) != 0);
*--p = '-';
}
else
{
do
*--p = '0' + i % 10;
while ((i /= 10) != 0);
}
return p;
}

47
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/* inttostr.h -- convert integers to printable strings
Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Paul Eggert */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#if HAVE_INTTYPES_H
# include <inttypes.h>
#endif
#if HAVE_STDINT_H
# include <stdint.h>
#endif
#include <limits.h>
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
/* Upper bound on the string length of an integer converted to string.
302 / 1000 is ceil (log10 (2.0)). Subtract 1 for the sign bit;
add 1 for integer division truncation; add 1 more for a minus sign. */
#define INT_STRLEN_BOUND(t) ((sizeof (t) * CHAR_BIT - 1) * 302 / 1000 + 2)
#define INT_BUFSIZE_BOUND(t) (INT_STRLEN_BOUND (t) + 1)
char *offtostr (off_t, char *);
char *imaxtostr (intmax_t, char *);
char *umaxtostr (uintmax_t, char *);

36
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/* Work around bug on some systems where malloc (0) fails.
Copyright (C) 1997, 1998 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* written by Jim Meyering */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#undef malloc
#include <stdlib.h>
/* Allocate an N-byte block of memory from the heap.
If N is zero, allocate a 1-byte block. */
void *
rpl_malloc (size_t n)
{
if (n == 0)
n = 1;
return malloc (n);
}

42
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/* Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
This file is derived from the one in the GNU C Library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include <config.h>
/* Disable the definition of mkstemp to rpl_mkstemp (from config.h) in this
file. Otherwise, we'd get conflicting prototypes for rpl_mkstemp on
most systems. */
#undef mkstemp
#include <stdio.h>
#include <stdlib.h>
#ifndef __GT_FILE
# define __GT_FILE 0
#endif
int __gen_tempname ();
/* Generate a unique temporary file name from TEMPLATE.
The last six characters of TEMPLATE must be "XXXXXX";
they are replaced with a string that makes the filename unique.
Then open the file and return a fd. */
int
rpl_mkstemp (char *template)
{
return __gen_tempname (template, __GT_FILE);
}

3
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#define inttostr offtostr
#define inttype off_t
#include "inttostr.c"

59
contrib/diff/lib/posixver.c Normal file
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/* Which POSIX version to conform to, for utilities.
Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Paul Eggert. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include "posixver.h"
#include <limits.h>
#include <stdlib.h>
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifndef _POSIX2_VERSION
# define _POSIX2_VERSION 0
#endif
#ifndef DEFAULT_POSIX2_VERSION
# define DEFAULT_POSIX2_VERSION _POSIX2_VERSION
#endif
/* The POSIX version that utilities should conform to. The default is
specified by the system. */
int
posix2_version (void)
{
long int v = DEFAULT_POSIX2_VERSION;
char const *s = getenv ("_POSIX2_VERSION");
if (s && *s)
{
char *e;
long int i = strtol (s, &e, 10);
if (! *e)
v = i;
}
return v < INT_MIN ? INT_MIN : v < INT_MAX ? v : INT_MAX;
}

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int posix2_version (void);

93
contrib/diff/lib/prepargs.c Normal file
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/* Parse arguments from a string and prepend them to an argv.
Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
/* Written by Paul Eggert <eggert@twinsun.com>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "prepargs.h"
#include <string.h>
#include <sys/types.h>
#include <xalloc.h>
#include <ctype.h>
/* IN_CTYPE_DOMAIN (C) is nonzero if the unsigned char C can safely be given
as an argument to <ctype.h> macros like "isspace". */
#ifdef STDC_HEADERS
# define IN_CTYPE_DOMAIN(c) 1
#else
# define IN_CTYPE_DOMAIN(c) ((c) <= 0177)
#endif
#define ISSPACE(c) (IN_CTYPE_DOMAIN (c) && isspace (c))
/* Find the white-space-separated options specified by OPTIONS, and
using BUF to store copies of these options, set ARGV[0], ARGV[1],
etc. to the option copies. Return the number N of options found.
Do not set ARGV[N]. If ARGV is zero, do not store ARGV[0] etc.
Backslash can be used to escape whitespace (and backslashes). */
static int
prepend_args (char const *options, char *buf, char **argv)
{
char const *o = options;
char *b = buf;
int n = 0;
for (;;)
{
while (ISSPACE ((unsigned char) *o))
o++;
if (!*o)
return n;
if (argv)
argv[n] = b;
n++;
do
if ((*b++ = *o++) == '\\' && *o)
b[-1] = *o++;
while (*o && ! ISSPACE ((unsigned char) *o));
*b++ = '\0';
}
}
/* Prepend the whitespace-separated options in OPTIONS to the argument
vector of a main program with argument count *PARGC and argument
vector *PARGV. */
void
prepend_default_options (char const *options, int *pargc, char ***pargv)
{
if (options)
{
char *buf = xmalloc (strlen (options) + 1);
int prepended = prepend_args (options, buf, (char **) 0);
int argc = *pargc;
char * const *argv = *pargv;
char **pp = (char **) xmalloc ((prepended + argc + 1) * sizeof *pp);
*pargc = prepended + argc;
*pargv = pp;
*pp++ = *argv++;
pp += prepend_args (options, buf, pp);
while ((*pp++ = *argv++))
continue;
}
}

3
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/* Parse arguments from a string and prepend them to an argv. */
void prepend_default_options (char const *, int *, char ***);

125
contrib/diff/lib/quotesys.c Normal file
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/* Shell command argument quoting.
Copyright (C) 1994, 1995, 1997 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.
If not, write to the Free Software Foundation,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Paul Eggert <eggert@twinsun.com> */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include <sys/types.h>
#include <quotesys.h>
/* Place into QUOTED a quoted version of ARG suitable for `system'.
Return the length of the resulting string (which is not null-terminated).
If QUOTED is null, return the length without any side effects. */
size_t
quote_system_arg (quoted, arg)
char *quoted;
char const *arg;
{
char const *a;
size_t len = 0;
/* Scan ARG, copying it to QUOTED if QUOTED is not null,
looking for shell metacharacters. */
for (a = arg; ; a++)
{
char c = *a;
switch (c)
{
case 0:
/* ARG has no shell metacharacters. */
return len;
case '=':
if (*arg == '-')
break;
/* Fall through. */
case '\t': case '\n': case ' ':
case '!': case '"': case '#': case '$': case '%': case '&': case '\'':
case '(': case ')': case '*': case ';':
case '<': case '>': case '?': case '[': case '\\':
case '^': case '`': case '|': case '~':
{
/* ARG has a shell metacharacter.
Start over, quoting it this time. */
len = 0;
c = *arg++;
/* If ARG is an option, quote just its argument.
This is not necessary, but it looks nicer. */
if (c == '-' && arg < a)
{
c = *arg++;
if (quoted)
{
quoted[len] = '-';
quoted[len + 1] = c;
}
len += 2;
if (c == '-')
while (arg < a)
{
c = *arg++;
if (quoted)
quoted[len] = c;
len++;
if (c == '=')
break;
}
c = *arg++;
}
if (quoted)
quoted[len] = '\'';
len++;
for (; c; c = *arg++)
{
if (c == '\'')
{
if (quoted)
{
quoted[len] = '\'';
quoted[len + 1] = '\\';
quoted[len + 2] = '\'';
}
len += 3;
}
if (quoted)
quoted[len] = c;
len++;
}
if (quoted)
quoted[len] = '\'';
return len + 1;
}
}
if (quoted)
quoted[len] = c;
len++;
}
}

9
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/* quotesys.h -- declarations for quoting system arguments */
#if defined __STDC__ || __GNUC__
# define __QUOTESYS_P(args) args
#else
# define __QUOTESYS_P(args) ()
#endif
size_t quote_system_arg __QUOTESYS_P ((char *, char const *));

39
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/* Work around bug on some systems where realloc (NULL, 0) fails.
Copyright (C) 1997, 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* written by Jim Meyering */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#undef realloc
#include <stdlib.h>
/* Change the size of an allocated block of memory P to N bytes,
with error checking. If N is zero, change it to 1. If P is NULL,
use malloc. */
void *
rpl_realloc (void *p, size_t n)
{
if (n == 0)
n = 1;
if (p == 0)
return malloc (n);
return realloc (p, n);
}

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contrib/diff/lib/regex.h Normal file
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/* Definitions for data structures and routines for the regular
expression library.
Copyright (C) 1985,1989-93,1995-98,2000,2001,2002,2003
Free Software Foundation, Inc.
This file is part of the GNU C Library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef _REGEX_H
#define _REGEX_H 1
#include <sys/types.h>
/* Allow the use in C++ code. */
#ifdef __cplusplus
extern "C" {
#endif
/* POSIX says that <sys/types.h> must be included (by the caller) before
<regex.h>. */
#if !defined _POSIX_C_SOURCE && !defined _POSIX_SOURCE && defined VMS
/* VMS doesn't have `size_t' in <sys/types.h>, even though POSIX says it
should be there. */
# include <stddef.h>
#endif
/* The following two types have to be signed and unsigned integer type
wide enough to hold a value of a pointer. For most ANSI compilers
ptrdiff_t and size_t should be likely OK. Still size of these two
types is 2 for Microsoft C. Ugh... */
typedef long int s_reg_t;
typedef unsigned long int active_reg_t;
/* The following bits are used to determine the regexp syntax we
recognize. The set/not-set meanings are chosen so that Emacs syntax
remains the value 0. The bits are given in alphabetical order, and
the definitions shifted by one from the previous bit; thus, when we
add or remove a bit, only one other definition need change. */
typedef unsigned long int reg_syntax_t;
/* If this bit is not set, then \ inside a bracket expression is literal.
If set, then such a \ quotes the following character. */
#define RE_BACKSLASH_ESCAPE_IN_LISTS ((unsigned long int) 1)
/* If this bit is not set, then + and ? are operators, and \+ and \? are
literals.
If set, then \+ and \? are operators and + and ? are literals. */
#define RE_BK_PLUS_QM (RE_BACKSLASH_ESCAPE_IN_LISTS << 1)
/* If this bit is set, then character classes are supported. They are:
[:alpha:], [:upper:], [:lower:], [:digit:], [:alnum:], [:xdigit:],
[:space:], [:print:], [:punct:], [:graph:], and [:cntrl:].
If not set, then character classes are not supported. */
#define RE_CHAR_CLASSES (RE_BK_PLUS_QM << 1)
/* If this bit is set, then ^ and $ are always anchors (outside bracket
expressions, of course).
If this bit is not set, then it depends:
^ is an anchor if it is at the beginning of a regular
expression or after an open-group or an alternation operator;
$ is an anchor if it is at the end of a regular expression, or
before a close-group or an alternation operator.
This bit could be (re)combined with RE_CONTEXT_INDEP_OPS, because
POSIX draft 11.2 says that * etc. in leading positions is undefined.
We already implemented a previous draft which made those constructs
invalid, though, so we haven't changed the code back. */
#define RE_CONTEXT_INDEP_ANCHORS (RE_CHAR_CLASSES << 1)
/* If this bit is set, then special characters are always special
regardless of where they are in the pattern.
If this bit is not set, then special characters are special only in
some contexts; otherwise they are ordinary. Specifically,
* + ? and intervals are only special when not after the beginning,
open-group, or alternation operator. */
#define RE_CONTEXT_INDEP_OPS (RE_CONTEXT_INDEP_ANCHORS << 1)
/* If this bit is set, then *, +, ?, and { cannot be first in an re or
immediately after an alternation or begin-group operator. */
#define RE_CONTEXT_INVALID_OPS (RE_CONTEXT_INDEP_OPS << 1)
/* If this bit is set, then . matches newline.
If not set, then it doesn't. */
#define RE_DOT_NEWLINE (RE_CONTEXT_INVALID_OPS << 1)
/* If this bit is set, then . doesn't match NUL.
If not set, then it does. */
#define RE_DOT_NOT_NULL (RE_DOT_NEWLINE << 1)
/* If this bit is set, nonmatching lists [^...] do not match newline.
If not set, they do. */
#define RE_HAT_LISTS_NOT_NEWLINE (RE_DOT_NOT_NULL << 1)
/* If this bit is set, either \{...\} or {...} defines an
interval, depending on RE_NO_BK_BRACES.
If not set, \{, \}, {, and } are literals. */
#define RE_INTERVALS (RE_HAT_LISTS_NOT_NEWLINE << 1)
/* If this bit is set, +, ? and | aren't recognized as operators.
If not set, they are. */
#define RE_LIMITED_OPS (RE_INTERVALS << 1)
/* If this bit is set, newline is an alternation operator.
If not set, newline is literal. */
#define RE_NEWLINE_ALT (RE_LIMITED_OPS << 1)
/* If this bit is set, then `{...}' defines an interval, and \{ and \}
are literals.
If not set, then `\{...\}' defines an interval. */
#define RE_NO_BK_BRACES (RE_NEWLINE_ALT << 1)
/* If this bit is set, (...) defines a group, and \( and \) are literals.
If not set, \(...\) defines a group, and ( and ) are literals. */
#define RE_NO_BK_PARENS (RE_NO_BK_BRACES << 1)
/* If this bit is set, then \<digit> matches <digit>.
If not set, then \<digit> is a back-reference. */
#define RE_NO_BK_REFS (RE_NO_BK_PARENS << 1)
/* If this bit is set, then | is an alternation operator, and \| is literal.
If not set, then \| is an alternation operator, and | is literal. */
#define RE_NO_BK_VBAR (RE_NO_BK_REFS << 1)
/* If this bit is set, then an ending range point collating higher
than the starting range point, as in [z-a], is invalid.
If not set, then when ending range point collates higher than the
starting range point, the range is ignored. */
#define RE_NO_EMPTY_RANGES (RE_NO_BK_VBAR << 1)
/* If this bit is set, then an unmatched ) is ordinary.
If not set, then an unmatched ) is invalid. */
#define RE_UNMATCHED_RIGHT_PAREN_ORD (RE_NO_EMPTY_RANGES << 1)
/* If this bit is set, succeed as soon as we match the whole pattern,
without further backtracking. */
#define RE_NO_POSIX_BACKTRACKING (RE_UNMATCHED_RIGHT_PAREN_ORD << 1)
/* If this bit is set, do not process the GNU regex operators.
If not set, then the GNU regex operators are recognized. */
#define RE_NO_GNU_OPS (RE_NO_POSIX_BACKTRACKING << 1)
/* If this bit is set, turn on internal regex debugging.
If not set, and debugging was on, turn it off.
This only works if regex.c is compiled -DDEBUG.
We define this bit always, so that all that's needed to turn on
debugging is to recompile regex.c; the calling code can always have
this bit set, and it won't affect anything in the normal case. */
#define RE_DEBUG (RE_NO_GNU_OPS << 1)
/* If this bit is set, a syntactically invalid interval is treated as
a string of ordinary characters. For example, the ERE 'a{1' is
treated as 'a\{1'. */
#define RE_INVALID_INTERVAL_ORD (RE_DEBUG << 1)
/* If this bit is set, then ignore case when matching.
If not set, then case is significant. */
#define RE_ICASE (RE_INVALID_INTERVAL_ORD << 1)
/* This global variable defines the particular regexp syntax to use (for
some interfaces). When a regexp is compiled, the syntax used is
stored in the pattern buffer, so changing this does not affect
already-compiled regexps. */
extern reg_syntax_t re_syntax_options;
/* Define combinations of the above bits for the standard possibilities.
(The [[[ comments delimit what gets put into the Texinfo file, so
don't delete them!) */
/* [[[begin syntaxes]]] */
#define RE_SYNTAX_EMACS 0
#define RE_SYNTAX_AWK \
(RE_BACKSLASH_ESCAPE_IN_LISTS | RE_DOT_NOT_NULL \
| RE_NO_BK_PARENS | RE_NO_BK_REFS \
| RE_NO_BK_VBAR | RE_NO_EMPTY_RANGES \
| RE_DOT_NEWLINE | RE_CONTEXT_INDEP_ANCHORS \
| RE_UNMATCHED_RIGHT_PAREN_ORD | RE_NO_GNU_OPS)
#define RE_SYNTAX_GNU_AWK \
((RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS | RE_DEBUG) \
& ~(RE_DOT_NOT_NULL | RE_INTERVALS | RE_CONTEXT_INDEP_OPS \
| RE_CONTEXT_INVALID_OPS ))
#define RE_SYNTAX_POSIX_AWK \
(RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS \
| RE_INTERVALS | RE_NO_GNU_OPS)
#define RE_SYNTAX_GREP \
(RE_BK_PLUS_QM | RE_CHAR_CLASSES \
| RE_HAT_LISTS_NOT_NEWLINE | RE_INTERVALS \
| RE_NEWLINE_ALT)
#define RE_SYNTAX_EGREP \
(RE_CHAR_CLASSES | RE_CONTEXT_INDEP_ANCHORS \
| RE_CONTEXT_INDEP_OPS | RE_HAT_LISTS_NOT_NEWLINE \
| RE_NEWLINE_ALT | RE_NO_BK_PARENS \
| RE_NO_BK_VBAR)
#define RE_SYNTAX_POSIX_EGREP \
(RE_SYNTAX_EGREP | RE_INTERVALS | RE_NO_BK_BRACES \
| RE_INVALID_INTERVAL_ORD)
/* P1003.2/D11.2, section 4.20.7.1, lines 5078ff. */
#define RE_SYNTAX_ED RE_SYNTAX_POSIX_BASIC
#define RE_SYNTAX_SED RE_SYNTAX_POSIX_BASIC
/* Syntax bits common to both basic and extended POSIX regex syntax. */
#define _RE_SYNTAX_POSIX_COMMON \
(RE_CHAR_CLASSES | RE_DOT_NEWLINE | RE_DOT_NOT_NULL \
| RE_INTERVALS | RE_NO_EMPTY_RANGES)
#define RE_SYNTAX_POSIX_BASIC \
(_RE_SYNTAX_POSIX_COMMON | RE_BK_PLUS_QM)
/* Differs from ..._POSIX_BASIC only in that RE_BK_PLUS_QM becomes
RE_LIMITED_OPS, i.e., \? \+ \| are not recognized. Actually, this
isn't minimal, since other operators, such as \`, aren't disabled. */
#define RE_SYNTAX_POSIX_MINIMAL_BASIC \
(_RE_SYNTAX_POSIX_COMMON | RE_LIMITED_OPS)
#define RE_SYNTAX_POSIX_EXTENDED \
(_RE_SYNTAX_POSIX_COMMON | RE_CONTEXT_INDEP_ANCHORS \
| RE_CONTEXT_INDEP_OPS | RE_NO_BK_BRACES \
| RE_NO_BK_PARENS | RE_NO_BK_VBAR \
| RE_CONTEXT_INVALID_OPS | RE_UNMATCHED_RIGHT_PAREN_ORD)
/* Differs from ..._POSIX_EXTENDED in that RE_CONTEXT_INDEP_OPS is
removed and RE_NO_BK_REFS is added. */
#define RE_SYNTAX_POSIX_MINIMAL_EXTENDED \
(_RE_SYNTAX_POSIX_COMMON | RE_CONTEXT_INDEP_ANCHORS \
| RE_CONTEXT_INVALID_OPS | RE_NO_BK_BRACES \
| RE_NO_BK_PARENS | RE_NO_BK_REFS \
| RE_NO_BK_VBAR | RE_UNMATCHED_RIGHT_PAREN_ORD)
/* [[[end syntaxes]]] */
/* Maximum number of duplicates an interval can allow. Some systems
(erroneously) define this in other header files, but we want our
value, so remove any previous define. */
#ifdef RE_DUP_MAX
# undef RE_DUP_MAX
#endif
/* If sizeof(int) == 2, then ((1 << 15) - 1) overflows. */
#define RE_DUP_MAX (0x7fff)
/* POSIX `cflags' bits (i.e., information for `regcomp'). */
/* If this bit is set, then use extended regular expression syntax.
If not set, then use basic regular expression syntax. */
#define REG_EXTENDED 1
/* If this bit is set, then ignore case when matching.
If not set, then case is significant. */
#define REG_ICASE (REG_EXTENDED << 1)
/* If this bit is set, then anchors do not match at newline
characters in the string.
If not set, then anchors do match at newlines. */
#define REG_NEWLINE (REG_ICASE << 1)
/* If this bit is set, then report only success or fail in regexec.
If not set, then returns differ between not matching and errors. */
#define REG_NOSUB (REG_NEWLINE << 1)
/* POSIX `eflags' bits (i.e., information for regexec). */
/* If this bit is set, then the beginning-of-line operator doesn't match
the beginning of the string (presumably because it's not the
beginning of a line).
If not set, then the beginning-of-line operator does match the
beginning of the string. */
#define REG_NOTBOL 1
/* Like REG_NOTBOL, except for the end-of-line. */
#define REG_NOTEOL (1 << 1)
/* If any error codes are removed, changed, or added, update the
`re_error_msg' table in regex.c. */
typedef enum
{
#ifdef _XOPEN_SOURCE
REG_ENOSYS = -1, /* This will never happen for this implementation. */
#endif
REG_NOERROR = 0, /* Success. */
REG_NOMATCH, /* Didn't find a match (for regexec). */
/* POSIX regcomp return error codes. (In the order listed in the
standard.) */
REG_BADPAT, /* Invalid pattern. */
REG_ECOLLATE, /* Not implemented. */
REG_ECTYPE, /* Invalid character class name. */
REG_EESCAPE, /* Trailing backslash. */
REG_ESUBREG, /* Invalid back reference. */
REG_EBRACK, /* Unmatched left bracket. */
REG_EPAREN, /* Parenthesis imbalance. */
REG_EBRACE, /* Unmatched \{. */
REG_BADBR, /* Invalid contents of \{\}. */
REG_ERANGE, /* Invalid range end. */
REG_ESPACE, /* Ran out of memory. */
REG_BADRPT, /* No preceding re for repetition op. */
/* Error codes we've added. */
REG_EEND, /* Premature end. */
REG_ESIZE, /* Compiled pattern bigger than 2^16 bytes. */
REG_ERPAREN /* Unmatched ) or \); not returned from regcomp. */
} reg_errcode_t;
/* This data structure represents a compiled pattern. Before calling
the pattern compiler, the fields `buffer', `allocated', `fastmap',
`translate', and `no_sub' can be set. After the pattern has been
compiled, the `re_nsub' field is available. All other fields are
private to the regex routines. */
#ifndef RE_TRANSLATE_TYPE
# define RE_TRANSLATE_TYPE char *
#endif
struct re_pattern_buffer
{
/* [[[begin pattern_buffer]]] */
/* Space that holds the compiled pattern. It is declared as
`unsigned char *' because its elements are
sometimes used as array indexes. */
unsigned char *buffer;
/* Number of bytes to which `buffer' points. */
unsigned long int allocated;
/* Number of bytes actually used in `buffer'. */
unsigned long int used;
/* Syntax setting with which the pattern was compiled. */
reg_syntax_t syntax;
/* Pointer to a fastmap, if any, otherwise zero. re_search uses
the fastmap, if there is one, to skip over impossible
starting points for matches. */
char *fastmap;
/* Either a translate table to apply to all characters before
comparing them, or zero for no translation. The translation
is applied to a pattern when it is compiled and to a string
when it is matched. */
RE_TRANSLATE_TYPE translate;
/* Number of subexpressions found by the compiler. */
size_t re_nsub;
/* Zero if this pattern cannot match the empty string, one else.
Well, in truth it's used only in `re_search_2', to see
whether or not we should use the fastmap, so we don't set
this absolutely perfectly; see `re_compile_fastmap' (the
`duplicate' case). */
unsigned can_be_null : 1;
/* If REGS_UNALLOCATED, allocate space in the `regs' structure
for `max (RE_NREGS, re_nsub + 1)' groups.
If REGS_REALLOCATE, reallocate space if necessary.
If REGS_FIXED, use what's there. */
#define REGS_UNALLOCATED 0
#define REGS_REALLOCATE 1
#define REGS_FIXED 2
unsigned regs_allocated : 2;
/* Set to zero when `regex_compile' compiles a pattern; set to one
by `re_compile_fastmap' if it updates the fastmap. */
unsigned fastmap_accurate : 1;
/* If set, `re_match_2' does not return information about
subexpressions. */
unsigned no_sub : 1;
/* If set, a beginning-of-line anchor doesn't match at the
beginning of the string. */
unsigned not_bol : 1;
/* Similarly for an end-of-line anchor. */
unsigned not_eol : 1;
/* If true, an anchor at a newline matches. */
unsigned newline_anchor : 1;
/* [[[end pattern_buffer]]] */
};
typedef struct re_pattern_buffer regex_t;
/* Type for byte offsets within the string. POSIX mandates this. */
typedef int regoff_t;
/* This is the structure we store register match data in. See
regex.texinfo for a full description of what registers match. */
struct re_registers
{
unsigned num_regs;
regoff_t *start;
regoff_t *end;
};
/* If `regs_allocated' is REGS_UNALLOCATED in the pattern buffer,
`re_match_2' returns information about at least this many registers
the first time a `regs' structure is passed. */
#ifndef RE_NREGS
# define RE_NREGS 30
#endif
/* POSIX specification for registers. Aside from the different names than
`re_registers', POSIX uses an array of structures, instead of a
structure of arrays. */
typedef struct
{
regoff_t rm_so; /* Byte offset from string's start to substring's start. */
regoff_t rm_eo; /* Byte offset from string's start to substring's end. */
} regmatch_t;
/* Declarations for routines. */
/* Sets the current default syntax to SYNTAX, and return the old syntax.
You can also simply assign to the `re_syntax_options' variable. */
extern reg_syntax_t re_set_syntax (reg_syntax_t syntax);
/* Compile the regular expression PATTERN, with length LENGTH
and syntax given by the global `re_syntax_options', into the buffer
BUFFER. Return NULL if successful, and an error string if not. */
extern const char *re_compile_pattern (const char *pattern, size_t length,
struct re_pattern_buffer *buffer);
/* Compile a fastmap for the compiled pattern in BUFFER; used to
accelerate searches. Return 0 if successful and -2 if was an
internal error. */
extern int re_compile_fastmap (struct re_pattern_buffer *buffer);
/* Search in the string STRING (with length LENGTH) for the pattern
compiled into BUFFER. Start searching at position START, for RANGE
characters. Return the starting position of the match, -1 for no
match, or -2 for an internal error. Also return register
information in REGS (if REGS and BUFFER->no_sub are nonzero). */
extern int re_search (struct re_pattern_buffer *buffer, const char *string,
int length, int start, int range,
struct re_registers *regs);
/* Like `re_search', but search in the concatenation of STRING1 and
STRING2. Also, stop searching at index START + STOP. */
extern int re_search_2 (struct re_pattern_buffer *buffer, const char *string1,
int length1, const char *string2, int length2,
int start, int range, struct re_registers *regs,
int stop);
/* Like `re_search', but return how many characters in STRING the regexp
in BUFFER matched, starting at position START. */
extern int re_match (struct re_pattern_buffer *buffer, const char *string,
int length, int start, struct re_registers *regs);
/* Relates to `re_match' as `re_search_2' relates to `re_search'. */
extern int re_match_2 (struct re_pattern_buffer *buffer, const char *string1,
int length1, const char *string2, int length2,
int start, struct re_registers *regs, int stop);
/* Set REGS to hold NUM_REGS registers, storing them in STARTS and
ENDS. Subsequent matches using BUFFER and REGS will use this memory
for recording register information. STARTS and ENDS must be
allocated with malloc, and must each be at least `NUM_REGS * sizeof
(regoff_t)' bytes long.
If NUM_REGS == 0, then subsequent matches should allocate their own
register data.
Unless this function is called, the first search or match using
PATTERN_BUFFER will allocate its own register data, without
freeing the old data. */
extern void re_set_registers (struct re_pattern_buffer *buffer,
struct re_registers *regs, unsigned num_regs,
regoff_t *starts, regoff_t *ends);
#if defined _REGEX_RE_COMP || defined _LIBC
# ifndef _CRAY
/* 4.2 bsd compatibility. */
extern char *re_comp (const char *);
extern int re_exec (const char *);
# endif
#endif
/* GCC 2.95 and later have "__restrict"; C99 compilers have
"restrict", and "configure" may have defined "restrict". */
#ifndef __restrict
# if ! (2 < __GNUC__ || (2 == __GNUC__ && 95 <= __GNUC_MINOR__))
# if defined restrict || 199901L <= __STDC_VERSION__
# define __restrict restrict
# else
# define __restrict
# endif
# endif
#endif
/* gcc 3.1 and up support the [restrict] syntax. */
#ifndef __restrict_arr
# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
# define __restrict_arr __restrict
# else
# define __restrict_arr
# endif
#endif
/* POSIX compatibility. */
extern int regcomp (regex_t *__restrict __preg,
const char *__restrict __pattern,
int __cflags);
extern int regexec (const regex_t *__restrict __preg,
const char *__restrict __string, size_t __nmatch,
regmatch_t __pmatch[__restrict_arr],
int __eflags);
extern size_t regerror (int __errcode, const regex_t *__preg,
char *__errbuf, size_t __errbuf_size);
extern void regfree (regex_t *__preg);
#ifdef __cplusplus
}
#endif /* C++ */
#endif /* regex.h */
/*
Local variables:
make-backup-files: t
version-control: t
trim-versions-without-asking: nil
End:
*/

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/* Set a file descriptor's mode to binary or to text.
Copyright (C) 2001, 2004 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.
If not, write to the Free Software Foundation,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Paul Eggert <eggert@twinsun.com> */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#if HAVE_STDBOOL_H
# include <stdbool.h>
#else
typedef enum {false = 0, true = 1} bool;
#endif
#if HAVE_SETMODE_DOS
# include <io.h>
# if HAVE_FCNTL_H
# include <fcntl.h>
# endif
# if HAVE_UNISTD_H
# include <unistd.h>
# endif
#endif
#include "setmode.h"
#undef set_binary_mode
#ifndef __attribute__
# if __GNUC__ < 3 || __STRICT_ANSI__
# define __attribute__(x)
# endif
#endif
/* Set the binary mode of FD to MODE, returning its previous mode.
MODE is 1 for binary and 0 for text. If setting the mode might
cause problems, ignore the request and return MODE. Always return
1 on POSIX platforms, which do not distinguish between text and
binary. */
#if HAVE_SETMODE_DOS
bool
set_binary_mode (int fd, bool mode)
{
if (isatty (fd))
return mode;
return setmode (fd, mode ? O_BINARY : O_TEXT) != O_TEXT;
}
#else
static char dummy;
#endif

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/* Set a file descriptor's mode to binary or to text.
Copyright (C) 2001, 2004 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.
If not, write to the Free Software Foundation,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Paul Eggert <eggert@twinsun.com> */
#ifndef set_binary_mode
bool set_binary_mode (int, bool);
# if ! HAVE_SETMODE_DOS
# define set_binary_mode(fd, mode) true
# endif
#endif

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/* Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
Written by Bruno Haible <haible@clisp.cons.org>, 2001.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef _STDBOOL_H
#define _STDBOOL_H
/* ISO C 99 <stdbool.h> for platforms that lack it. */
/* Usage suggestions:
Programs that use <stdbool.h> should be aware of some limitations
and standards compliance issues.
Standards compliance:
- <stdbool.h> must be #included before 'bool', 'false', 'true'
can be used.
- You cannot assume that sizeof (bool) == 1.
- Programs should not undefine the macros bool, true, and false,
as C99 lists that as an "obsolescent feature".
Limitations of this substitute, when used in a C89 environment:
- <stdbool.h> must be #included before the '_Bool' type can be used.
- You cannot assume that _Bool is a typedef; it might be a macro.
- In C99, casts and automatic conversions to '_Bool' or 'bool' are
performed in such a way that every nonzero value gets converted
to 'true', and zero gets converted to 'false'. This doesn't work
with this substitute. With this substitute, only the values 0 and 1
give the expected result when converted to _Bool' or 'bool'.
Also, it is suggested that programs use 'bool' rather than '_Bool';
this isn't required, but 'bool' is more common. */
/* 7.16. Boolean type and values */
/* BeOS <sys/socket.h> already #defines false 0, true 1. We use the same
definitions below, but temporarily we have to #undef them. */
#ifdef __BEOS__
# include <OS.h> /* defines bool but not _Bool */
# undef false
# undef true
#endif
/* For the sake of symbolic names in gdb, we define true and false as
enum constants, not only as macros.
It is tempting to write
typedef enum { false = 0, true = 1 } _Bool;
so that gdb prints values of type 'bool' symbolically. But if we do
this, values of type '_Bool' may promote to 'int' or 'unsigned int'
(see ISO C 99 6.7.2.2.(4)); however, '_Bool' must promote to 'int'
(see ISO C 99 6.3.1.1.(2)). So we add a negative value to the
enum; this ensures that '_Bool' promotes to 'int'. */
#if !(defined __cplusplus || defined __BEOS__)
# if !@HAVE__BOOL@
# if defined __SUNPRO_C && (__SUNPRO_C < 0x550 || __STDC__ == 1)
/* Avoid stupid "warning: _Bool is a keyword in ISO C99". */
# define _Bool signed char
enum { false = 0, true = 1 };
# else
typedef enum { _Bool_must_promote_to_int = -1, false = 0, true = 1 } _Bool;
# endif
# endif
#else
typedef bool _Bool;
#endif
#define bool _Bool
/* The other macros must be usable in preprocessor directives. */
#define false 0
#define true 1
#define __bool_true_false_are_defined 1
#endif /* _STDBOOL_H */

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/* Case-insensitive string comparison functions.
Copyright (C) 1995-1996, 2001, 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef _STRCASE_H
#define _STRCASE_H
#include <stddef.h>
/* Compare strings S1 and S2, ignoring case, returning less than, equal to or
greater than zero if S1 is lexicographically less than, equal to or greater
than S2.
Note: This function does not work correctly in multibyte locales. */
extern int strcasecmp (const char *s1, const char *s2);
/* Compare no more than N characters of strings S1 and S2, ignoring case,
returning less than, equal to or greater than zero if S1 is
lexicographically less than, equal to or greater than S2.
Note: This function can not work correctly in multibyte locales. */
extern int strncasecmp (const char *s1, const char *s2, size_t n);
#endif /* _STRCASE_H */

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/* strcasecmp.c -- case insensitive string comparator
Copyright (C) 1998, 1999 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef LENGTH_LIMIT
# define STRXCASECMP_FUNCTION strncasecmp
# define STRXCASECMP_DECLARE_N , size_t n
# define LENGTH_LIMIT_EXPR(Expr) Expr
#else
# define STRXCASECMP_FUNCTION strcasecmp
# define STRXCASECMP_DECLARE_N /* empty */
# define LENGTH_LIMIT_EXPR(Expr) 0
#endif
#include <stddef.h>
#include <ctype.h>
#define TOLOWER(Ch) (isupper (Ch) ? tolower (Ch) : (Ch))
/* Compare {{no more than N characters of }}strings S1 and S2,
ignoring case, returning less than, equal to or
greater than zero if S1 is lexicographically less
than, equal to or greater than S2. */
int
STRXCASECMP_FUNCTION (const char *s1, const char *s2 STRXCASECMP_DECLARE_N)
{
register const unsigned char *p1 = (const unsigned char *) s1;
register const unsigned char *p2 = (const unsigned char *) s2;
unsigned char c1, c2;
if (p1 == p2 || LENGTH_LIMIT_EXPR (n == 0))
return 0;
do
{
c1 = TOLOWER (*p1);
c2 = TOLOWER (*p2);
if (LENGTH_LIMIT_EXPR (--n == 0) || c1 == '\0')
break;
++p1;
++p2;
}
while (c1 == c2);
return c1 - c2;
}

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/* stripslash.c -- remove redundant trailing slashes from a file name
Copyright (C) 1990, 2001, 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include "dirname.h"
/* Remove trailing slashes from PATH.
Return nonzero if a trailing slash was removed.
This is useful when using filename completion from a shell that
adds a "/" after directory names (such as tcsh and bash), because
the Unix rename and rmdir system calls return an "Invalid argument" error
when given a path that ends in "/" (except for the root directory). */
int
strip_trailing_slashes (char *path)
{
char *base = base_name (path);
char *base_lim = base + base_len (base);
int had_slash = *base_lim;
*base_lim = '\0';
return had_slash;
}

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#define LENGTH_LIMIT
#include "strcasecmp.c"

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/* Convert string representation of a number into an intmax_t value.
Copyright (C) 1999, 2001, 2002, 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Paul Eggert. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#if HAVE_INTTYPES_H
# include <inttypes.h>
#elif HAVE_STDINT_H
# include <stdint.h>
#endif
#include <stdlib.h>
/* Verify a requirement at compile-time (unlike assert, which is runtime). */
#define verify(name, assertion) struct name { char a[(assertion) ? 1 : -1]; }
#ifdef UNSIGNED
# ifndef HAVE_DECL_STRTOULL
"this configure-time declaration test was not run"
# endif
# if !HAVE_DECL_STRTOULL && HAVE_UNSIGNED_LONG_LONG
unsigned long long strtoull (char const *, char **, int);
# endif
#else
# ifndef HAVE_DECL_STRTOLL
"this configure-time declaration test was not run"
# endif
# if !HAVE_DECL_STRTOLL && HAVE_UNSIGNED_LONG_LONG
long long strtoll (char const *, char **, int);
# endif
#endif
#ifdef UNSIGNED
# undef HAVE_LONG_LONG
# define HAVE_LONG_LONG HAVE_UNSIGNED_LONG_LONG
# define INT uintmax_t
# define strtoimax strtoumax
# define strtol strtoul
# define strtoll strtoull
#else
# define INT intmax_t
#endif
INT
strtoimax (char const *ptr, char **endptr, int base)
{
#if HAVE_LONG_LONG
verify (size_is_that_of_long_or_long_long,
(sizeof (INT) == sizeof (long)
|| sizeof (INT) == sizeof (long long)));
if (sizeof (INT) != sizeof (long))
return strtoll (ptr, endptr, base);
#else
verify (size_is_that_of_long,
sizeof (INT) == sizeof (long));
#endif
return strtol (ptr, endptr, base);
}

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/* Convert string representation of a number into an integer value.
Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2003
Free Software Foundation, Inc.
NOTE: The canonical source of this file is maintained with the GNU C
Library. Bugs can be reported to bug-glibc@gnu.org.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef _LIBC
# define USE_NUMBER_GROUPING
#endif
#include <ctype.h>
#include <errno.h>
#ifndef errno
extern int errno;
#endif
#ifndef __set_errno
# define __set_errno(Val) errno = (Val)
#endif
#include <limits.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#ifdef USE_NUMBER_GROUPING
# include "../locale/localeinfo.h"
#endif
/* Nonzero if we are defining `strtoul' or `strtoull', operating on
unsigned integers. */
#ifndef UNSIGNED
# define UNSIGNED 0
# define INT LONG int
#else
# define INT unsigned LONG int
#endif
/* Determine the name. */
#ifdef USE_IN_EXTENDED_LOCALE_MODEL
# if UNSIGNED
# ifdef USE_WIDE_CHAR
# ifdef QUAD
# define strtol __wcstoull_l
# else
# define strtol __wcstoul_l
# endif
# else
# ifdef QUAD
# define strtol __strtoull_l
# else
# define strtol __strtoul_l
# endif
# endif
# else
# ifdef USE_WIDE_CHAR
# ifdef QUAD
# define strtol __wcstoll_l
# else
# define strtol __wcstol_l
# endif
# else
# ifdef QUAD
# define strtol __strtoll_l
# else
# define strtol __strtol_l
# endif
# endif
# endif
#else
# if UNSIGNED
# ifdef USE_WIDE_CHAR
# ifdef QUAD
# define strtol wcstoull
# else
# define strtol wcstoul
# endif
# else
# ifdef QUAD
# define strtol strtoull
# else
# define strtol strtoul
# endif
# endif
# else
# ifdef USE_WIDE_CHAR
# ifdef QUAD
# define strtol wcstoll
# else
# define strtol wcstol
# endif
# else
# ifdef QUAD
# define strtol strtoll
# endif
# endif
# endif
#endif
/* If QUAD is defined, we are defining `strtoll' or `strtoull',
operating on `long long int's. */
#ifdef QUAD
# define LONG long long
# define STRTOL_LONG_MIN LONG_LONG_MIN
# define STRTOL_LONG_MAX LONG_LONG_MAX
# define STRTOL_ULONG_MAX ULONG_LONG_MAX
/* The extra casts work around common compiler bugs,
e.g. Cray C 5.0.3.0 when t == time_t. */
# ifndef TYPE_SIGNED
# define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
# endif
# ifndef TYPE_MINIMUM
# define TYPE_MINIMUM(t) ((t) (TYPE_SIGNED (t) \
? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) \
: (t) 0))
# endif
# ifndef TYPE_MAXIMUM
# define TYPE_MAXIMUM(t) ((t) (~ (t) 0 - TYPE_MINIMUM (t)))
# endif
# ifndef ULONG_LONG_MAX
# define ULONG_LONG_MAX TYPE_MAXIMUM (unsigned long long)
# endif
# ifndef LONG_LONG_MAX
# define LONG_LONG_MAX TYPE_MAXIMUM (long long int)
# endif
# ifndef LONG_LONG_MIN
# define LONG_LONG_MIN TYPE_MINIMUM (long long int)
# endif
# if __GNUC__ == 2 && __GNUC_MINOR__ < 7
/* Work around gcc bug with using this constant. */
static const unsigned long long int maxquad = ULONG_LONG_MAX;
# undef STRTOL_ULONG_MAX
# define STRTOL_ULONG_MAX maxquad
# endif
#else
# define LONG long
# define STRTOL_LONG_MIN LONG_MIN
# define STRTOL_LONG_MAX LONG_MAX
# define STRTOL_ULONG_MAX ULONG_MAX
#endif
/* We use this code also for the extended locale handling where the
function gets as an additional argument the locale which has to be
used. To access the values we have to redefine the _NL_CURRENT
macro. */
#ifdef USE_IN_EXTENDED_LOCALE_MODEL
# undef _NL_CURRENT
# define _NL_CURRENT(category, item) \
(current->values[_NL_ITEM_INDEX (item)].string)
# define LOCALE_PARAM , loc
# define LOCALE_PARAM_PROTO , __locale_t loc
#else
# define LOCALE_PARAM
# define LOCALE_PARAM_PROTO
#endif
#if defined _LIBC || defined HAVE_WCHAR_H
# include <wchar.h>
#endif
#ifdef USE_WIDE_CHAR
# include <wctype.h>
# define L_(Ch) L##Ch
# define UCHAR_TYPE wint_t
# define STRING_TYPE wchar_t
# ifdef USE_IN_EXTENDED_LOCALE_MODEL
# define ISSPACE(Ch) __iswspace_l ((Ch), loc)
# define ISALPHA(Ch) __iswalpha_l ((Ch), loc)
# define TOUPPER(Ch) __towupper_l ((Ch), loc)
# else
# define ISSPACE(Ch) iswspace (Ch)
# define ISALPHA(Ch) iswalpha (Ch)
# define TOUPPER(Ch) towupper (Ch)
# endif
#else
# if defined STDC_HEADERS || (!defined isascii && !defined HAVE_ISASCII)
# define IN_CTYPE_DOMAIN(c) 1
# else
# define IN_CTYPE_DOMAIN(c) isascii(c)
# endif
# define L_(Ch) Ch
# define UCHAR_TYPE unsigned char
# define STRING_TYPE char
# ifdef USE_IN_EXTENDED_LOCALE_MODEL
# define ISSPACE(Ch) __isspace_l ((Ch), loc)
# define ISALPHA(Ch) __isalpha_l ((Ch), loc)
# define TOUPPER(Ch) __toupper_l ((Ch), loc)
# else
# define ISSPACE(Ch) (IN_CTYPE_DOMAIN (Ch) && isspace (Ch))
# define ISALPHA(Ch) (IN_CTYPE_DOMAIN (Ch) && isalpha (Ch))
# define TOUPPER(Ch) (IN_CTYPE_DOMAIN (Ch) ? toupper (Ch) : (Ch))
# endif
#endif
#define INTERNAL(X) INTERNAL1(X)
#define INTERNAL1(X) __##X##_internal
#define WEAKNAME(X) WEAKNAME1(X)
#ifdef USE_NUMBER_GROUPING
/* This file defines a function to check for correct grouping. */
# include "grouping.h"
#endif
/* Convert NPTR to an `unsigned long int' or `long int' in base BASE.
If BASE is 0 the base is determined by the presence of a leading
zero, indicating octal or a leading "0x" or "0X", indicating hexadecimal.
If BASE is < 2 or > 36, it is reset to 10.
If ENDPTR is not NULL, a pointer to the character after the last
one converted is stored in *ENDPTR. */
INT
INTERNAL (strtol) (const STRING_TYPE *nptr, STRING_TYPE **endptr,
int base, int group LOCALE_PARAM_PROTO)
{
int negative;
register unsigned LONG int cutoff;
register unsigned int cutlim;
register unsigned LONG int i;
register const STRING_TYPE *s;
register UCHAR_TYPE c;
const STRING_TYPE *save, *end;
int overflow;
#ifdef USE_NUMBER_GROUPING
# ifdef USE_IN_EXTENDED_LOCALE_MODEL
struct locale_data *current = loc->__locales[LC_NUMERIC];
# endif
/* The thousands character of the current locale. */
wchar_t thousands = L'\0';
/* The numeric grouping specification of the current locale,
in the format described in <locale.h>. */
const char *grouping;
if (group)
{
grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
if (*grouping <= 0 || *grouping == CHAR_MAX)
grouping = NULL;
else
{
/* Figure out the thousands separator character. */
# if defined _LIBC || defined _HAVE_BTOWC
thousands = __btowc (*_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP));
if (thousands == WEOF)
thousands = L'\0';
# endif
if (thousands == L'\0')
grouping = NULL;
}
}
else
grouping = NULL;
#endif
if (base < 0 || base == 1 || base > 36)
{
__set_errno (EINVAL);
return 0;
}
save = s = nptr;
/* Skip white space. */
while (ISSPACE (*s))
++s;
if (*s == L_('\0'))
goto noconv;
/* Check for a sign. */
if (*s == L_('-'))
{
negative = 1;
++s;
}
else if (*s == L_('+'))
{
negative = 0;
++s;
}
else
negative = 0;
/* Recognize number prefix and if BASE is zero, figure it out ourselves. */
if (*s == L_('0'))
{
if ((base == 0 || base == 16) && TOUPPER (s[1]) == L_('X'))
{
s += 2;
base = 16;
}
else if (base == 0)
base = 8;
}
else if (base == 0)
base = 10;
/* Save the pointer so we can check later if anything happened. */
save = s;
#ifdef USE_NUMBER_GROUPING
if (group)
{
/* Find the end of the digit string and check its grouping. */
end = s;
for (c = *end; c != L_('\0'); c = *++end)
if ((wchar_t) c != thousands
&& ((wchar_t) c < L_('0') || (wchar_t) c > L_('9'))
&& (!ISALPHA (c) || (int) (TOUPPER (c) - L_('A') + 10) >= base))
break;
if (*s == thousands)
end = s;
else
end = correctly_grouped_prefix (s, end, thousands, grouping);
}
else
#endif
end = NULL;
cutoff = STRTOL_ULONG_MAX / (unsigned LONG int) base;
cutlim = STRTOL_ULONG_MAX % (unsigned LONG int) base;
overflow = 0;
i = 0;
for (c = *s; c != L_('\0'); c = *++s)
{
if (s == end)
break;
if (c >= L_('0') && c <= L_('9'))
c -= L_('0');
else if (ISALPHA (c))
c = TOUPPER (c) - L_('A') + 10;
else
break;
if ((int) c >= base)
break;
/* Check for overflow. */
if (i > cutoff || (i == cutoff && c > cutlim))
overflow = 1;
else
{
i *= (unsigned LONG int) base;
i += c;
}
}
/* Check if anything actually happened. */
if (s == save)
goto noconv;
/* Store in ENDPTR the address of one character
past the last character we converted. */
if (endptr != NULL)
*endptr = (STRING_TYPE *) s;
#if !UNSIGNED
/* Check for a value that is within the range of
`unsigned LONG int', but outside the range of `LONG int'. */
if (overflow == 0
&& i > (negative
? -((unsigned LONG int) (STRTOL_LONG_MIN + 1)) + 1
: (unsigned LONG int) STRTOL_LONG_MAX))
overflow = 1;
#endif
if (overflow)
{
__set_errno (ERANGE);
#if UNSIGNED
return STRTOL_ULONG_MAX;
#else
return negative ? STRTOL_LONG_MIN : STRTOL_LONG_MAX;
#endif
}
/* Return the result of the appropriate sign. */
return negative ? -i : i;
noconv:
/* We must handle a special case here: the base is 0 or 16 and the
first two characters are '0' and 'x', but the rest are no
hexadecimal digits. This is no error case. We return 0 and
ENDPTR points to the `x`. */
if (endptr != NULL)
{
if (save - nptr >= 2 && TOUPPER (save[-1]) == L_('X')
&& save[-2] == L_('0'))
*endptr = (STRING_TYPE *) &save[-1];
else
/* There was no number to convert. */
*endptr = (STRING_TYPE *) nptr;
}
return 0L;
}
/* External user entry point. */
INT
#ifdef weak_function
weak_function
#endif
strtol (const STRING_TYPE *nptr, STRING_TYPE **endptr,
int base LOCALE_PARAM_PROTO)
{
return INTERNAL (strtol) (nptr, endptr, base, 0 LOCALE_PARAM);
}

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/* Function to parse a `long long int' from text.
Copyright (C) 1995, 1996, 1997, 1999, 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#define QUAD 1
#include <strtol.c>
#ifdef _LIBC
# ifdef SHARED
# include <shlib-compat.h>
# if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
compat_symbol (libc, __strtoll_internal, __strtoq_internal, GLIBC_2_0);
# endif
# endif
weak_alias (strtoll, strtoq)
#endif

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/* Copyright (C) 1991, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#define UNSIGNED 1
#include "strtol.c"

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/* Function to parse an `unsigned long long int' from text.
Copyright (C) 1995, 1996, 1997, 1999 Free Software Foundation, Inc.
NOTE: The canonical source of this file is maintained with the GNU C
Library. Bugs can be reported to bug-glibc@gnu.org.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#define QUAD 1
#include "strtoul.c"
#ifdef _LIBC
strong_alias (__strtoull_internal, __strtouq_internal)
weak_alias (strtoull, strtouq)
#endif

2
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#define UNSIGNED 1
#include "strtoimax.c"

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/* tempname.c - generate the name of a temporary file.
Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
2000, 2001, 2002, 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include <sys/types.h>
#include <assert.h>
#include <errno.h>
#ifndef __set_errno
# define __set_errno(Val) errno = (Val)
#endif
#include <stdio.h>
#ifndef P_tmpdir
# define P_tmpdir "/tmp"
#endif
#ifndef TMP_MAX
# define TMP_MAX 238328
#endif
#ifndef __GT_FILE
# define __GT_FILE 0
# define __GT_BIGFILE 1
# define __GT_DIR 2
# define __GT_NOCREATE 3
#endif
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#if HAVE_FCNTL_H || _LIBC
# include <fcntl.h>
#endif
#if HAVE_SYS_TIME_H || _LIBC
# include <sys/time.h>
#endif
#if HAVE_STDINT_H || _LIBC
# include <stdint.h>
#endif
#if HAVE_INTTYPES_H
# include <inttypes.h>
#endif
#if HAVE_UNISTD_H || _LIBC
# include <unistd.h>
#endif
#include <sys/stat.h>
#if STAT_MACROS_BROKEN
# undef S_ISDIR
#endif
#if !defined S_ISDIR && defined S_IFDIR
# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
#endif
#if !S_IRUSR && S_IREAD
# define S_IRUSR S_IREAD
#endif
#if !S_IRUSR
# define S_IRUSR 00400
#endif
#if !S_IWUSR && S_IWRITE
# define S_IWUSR S_IWRITE
#endif
#if !S_IWUSR
# define S_IWUSR 00200
#endif
#if !S_IXUSR && S_IEXEC
# define S_IXUSR S_IEXEC
#endif
#if !S_IXUSR
# define S_IXUSR 00100
#endif
#if _LIBC
# define struct_stat64 struct stat64
#else
# define struct_stat64 struct stat
# define __getpid getpid
# define __gettimeofday gettimeofday
# define __mkdir mkdir
# define __open open
# define __open64 open
# define __lxstat64(version, path, buf) lstat (path, buf)
# define __xstat64(version, path, buf) stat (path, buf)
#endif
#if ! (HAVE___SECURE_GETENV || _LIBC)
# define __secure_getenv getenv
#endif
#ifdef _LIBC
# include <hp-timing.h>
# if HP_TIMING_AVAIL
# define RANDOM_BITS(Var) \
if (__builtin_expect (value == UINT64_C (0), 0)) \
{ \
/* If this is the first time this function is used initialize \
the variable we accumulate the value in to some somewhat \
random value. If we'd not do this programs at startup time \
might have a reduced set of possible names, at least on slow \
machines. */ \
struct timeval tv; \
__gettimeofday (&tv, NULL); \
value = ((uint64_t) tv.tv_usec << 16) ^ tv.tv_sec; \
} \
HP_TIMING_NOW (Var)
# endif
#endif
/* Use the widest available unsigned type if uint64_t is not
available. The algorithm below extracts a number less than 62**6
(approximately 2**35.725) from uint64_t, so ancient hosts where
uintmax_t is only 32 bits lose about 3.725 bits of randomness,
which is better than not having mkstemp at all. */
#if !defined UINT64_MAX && !defined uint64_t
# define uint64_t uintmax_t
#endif
/* Return nonzero if DIR is an existent directory. */
static int
direxists (const char *dir)
{
struct_stat64 buf;
return __xstat64 (_STAT_VER, dir, &buf) == 0 && S_ISDIR (buf.st_mode);
}
/* Path search algorithm, for tmpnam, tmpfile, etc. If DIR is
non-null and exists, uses it; otherwise uses the first of $TMPDIR,
P_tmpdir, /tmp that exists. Copies into TMPL a template suitable
for use with mk[s]temp. Will fail (-1) if DIR is non-null and
doesn't exist, none of the searched dirs exists, or there's not
enough space in TMPL. */
int
__path_search (char *tmpl, size_t tmpl_len, const char *dir, const char *pfx,
int try_tmpdir)
{
const char *d;
size_t dlen, plen;
if (!pfx || !pfx[0])
{
pfx = "file";
plen = 4;
}
else
{
plen = strlen (pfx);
if (plen > 5)
plen = 5;
}
if (try_tmpdir)
{
d = __secure_getenv ("TMPDIR");
if (d != NULL && direxists (d))
dir = d;
else if (dir != NULL && direxists (dir))
/* nothing */ ;
else
dir = NULL;
}
if (dir == NULL)
{
if (direxists (P_tmpdir))
dir = P_tmpdir;
else if (strcmp (P_tmpdir, "/tmp") != 0 && direxists ("/tmp"))
dir = "/tmp";
else
{
__set_errno (ENOENT);
return -1;
}
}
dlen = strlen (dir);
while (dlen > 1 && dir[dlen - 1] == '/')
dlen--; /* remove trailing slashes */
/* check we have room for "${dir}/${pfx}XXXXXX\0" */
if (tmpl_len < dlen + 1 + plen + 6 + 1)
{
__set_errno (EINVAL);
return -1;
}
sprintf (tmpl, "%.*s/%.*sXXXXXX", (int) dlen, dir, (int) plen, pfx);
return 0;
}
/* These are the characters used in temporary filenames. */
static const char letters[] =
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
/* Generate a temporary file name based on TMPL. TMPL must match the
rules for mk[s]temp (i.e. end in "XXXXXX"). The name constructed
does not exist at the time of the call to __gen_tempname. TMPL is
overwritten with the result.
KIND may be one of:
__GT_NOCREATE: simply verify that the name does not exist
at the time of the call.
__GT_FILE: create the file using open(O_CREAT|O_EXCL)
and return a read-write fd. The file is mode 0600.
__GT_BIGFILE: same as __GT_FILE but use open64().
__GT_DIR: create a directory, which will be mode 0700.
We use a clever algorithm to get hard-to-predict names. */
int
__gen_tempname (char *tmpl, int kind)
{
int len;
char *XXXXXX;
static uint64_t value;
uint64_t random_time_bits;
unsigned int count;
int fd = -1;
int save_errno = errno;
struct_stat64 st;
/* A lower bound on the number of temporary files to attempt to
generate. The maximum total number of temporary file names that
can exist for a given template is 62**6. It should never be
necessary to try all these combinations. Instead if a reasonable
number of names is tried (we define reasonable as 62**3) fail to
give the system administrator the chance to remove the problems. */
unsigned int attempts_min = 62 * 62 * 62;
/* The number of times to attempt to generate a temporary file. To
conform to POSIX, this must be no smaller than TMP_MAX. */
unsigned int attempts = attempts_min < TMP_MAX ? TMP_MAX : attempts_min;
len = strlen (tmpl);
if (len < 6 || strcmp (&tmpl[len - 6], "XXXXXX"))
{
__set_errno (EINVAL);
return -1;
}
/* This is where the Xs start. */
XXXXXX = &tmpl[len - 6];
/* Get some more or less random data. */
#ifdef RANDOM_BITS
RANDOM_BITS (random_time_bits);
#else
# if HAVE_GETTIMEOFDAY || _LIBC
{
struct timeval tv;
__gettimeofday (&tv, NULL);
random_time_bits = ((uint64_t) tv.tv_usec << 16) ^ tv.tv_sec;
}
# else
random_time_bits = time (NULL);
# endif
#endif
value += random_time_bits ^ __getpid ();
for (count = 0; count < attempts; value += 7777, ++count)
{
uint64_t v = value;
/* Fill in the random bits. */
XXXXXX[0] = letters[v % 62];
v /= 62;
XXXXXX[1] = letters[v % 62];
v /= 62;
XXXXXX[2] = letters[v % 62];
v /= 62;
XXXXXX[3] = letters[v % 62];
v /= 62;
XXXXXX[4] = letters[v % 62];
v /= 62;
XXXXXX[5] = letters[v % 62];
switch (kind)
{
case __GT_FILE:
fd = __open (tmpl, O_RDWR | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR);
break;
case __GT_BIGFILE:
fd = __open64 (tmpl, O_RDWR | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR);
break;
case __GT_DIR:
fd = __mkdir (tmpl, S_IRUSR | S_IWUSR | S_IXUSR);
break;
case __GT_NOCREATE:
/* This case is backward from the other three. __gen_tempname
succeeds if __xstat fails because the name does not exist.
Note the continue to bypass the common logic at the bottom
of the loop. */
if (__lxstat64 (_STAT_VER, tmpl, &st) < 0)
{
if (errno == ENOENT)
{
__set_errno (save_errno);
return 0;
}
else
/* Give up now. */
return -1;
}
continue;
default:
assert (! "invalid KIND in __gen_tempname");
}
if (fd >= 0)
{
__set_errno (save_errno);
return fd;
}
else if (errno != EEXIST)
return -1;
}
/* We got out of the loop because we ran out of combinations to try. */
__set_errno (EEXIST);
return -1;
}

69
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/* Reentrant time functions like localtime_r.
Copyright (C) 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Paul Eggert. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include "time_r.h"
#include <string.h>
static char *
copy_string_result (char *dest, char const *src)
{
if (! src)
return 0;
return strcpy (dest, src);
}
static struct tm *
copy_tm_result (struct tm *dest, struct tm const *src)
{
if (! src)
return 0;
*dest = *src;
return dest;
}
char *
asctime_r (struct tm const * restrict tm, char * restrict buf)
{
return copy_string_result (buf, asctime (tm));
}
char *
ctime_r (time_t const *t, char *buf)
{
return copy_string_result (buf, ctime (t));
}
struct tm *
gmtime_r (time_t const * restrict t, struct tm * restrict tp)
{
return copy_tm_result (tp, gmtime (t));
}
struct tm *
localtime_r (time_t const * restrict t, struct tm * restrict tp)
{
return copy_tm_result (tp, localtime (t));
}

46
contrib/diff/lib/time_r.h Normal file
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/* Reentrant time functions like localtime_r.
Copyright (C) 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Paul Eggert. */
#ifndef _TIME_R_H
#define _TIME_R_H
/* Include <time.h> first, since it may declare these functions with
signatures that disagree with POSIX, and we don't want to rename
those declarations. */
#include <time.h>
#if !HAVE_TIME_R_POSIX
# undef asctime_r
# undef ctime_r
# undef gmtime_r
# undef localtime_r
# define asctime_r rpl_asctime_r
# define ctime_r rpl_ctime_r
# define gmtime_r rpl_gmtime_r
# define localtime_r rpl_localtime_r
char *asctime_r (struct tm const * restrict, char * restrict);
char *ctime_r (time_t const *, char *);
struct tm *gmtime_r (time_t const * restrict, struct tm * restrict);
struct tm *localtime_r (time_t const * restrict, struct tm * restrict);
#endif
#endif

3
contrib/diff/lib/umaxtostr.c Normal file
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#define inttostr umaxtostr
#define inttype uintmax_t
#include "inttostr.c"

132
contrib/diff/lib/unlocked-io.h Normal file
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/* Prefer faster, non-thread-safe stdio functions if available.
Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Jim Meyering. */
#ifndef UNLOCKED_IO_H
# define UNLOCKED_IO_H 1
# ifndef USE_UNLOCKED_IO
# define USE_UNLOCKED_IO 1
# endif
# if USE_UNLOCKED_IO
/* These are wrappers for functions/macros from the GNU C library, and
from other C libraries supporting POSIX's optional thread-safe functions.
The standard I/O functions are thread-safe. These *_unlocked ones are
more efficient but not thread-safe. That they're not thread-safe is
fine since all of the applications in this package are single threaded.
Also, some code that is shared with the GNU C library may invoke
the *_unlocked functions directly. On hosts that lack those
functions, invoke the non-thread-safe versions instead. */
# include <stdio.h>
# if HAVE_DECL_CLEARERR_UNLOCKED
# undef clearerr
# define clearerr(x) clearerr_unlocked (x)
# else
# define clearerr_unlocked(x) clearerr (x)
# endif
# if HAVE_DECL_FEOF_UNLOCKED
# undef feof
# define feof(x) feof_unlocked (x)
# else
# define feof_unlocked(x) feof (x)
# endif
# if HAVE_DECL_FERROR_UNLOCKED
# undef ferror
# define ferror(x) ferror_unlocked (x)
# else
# define ferror_unlocked(x) ferror (x)
# endif
# if HAVE_DECL_FFLUSH_UNLOCKED
# undef fflush
# define fflush(x) fflush_unlocked (x)
# else
# define fflush_unlocked(x) fflush (x)
# endif
# if HAVE_DECL_FGETS_UNLOCKED
# undef fgets
# define fgets(x,y,z) fgets_unlocked (x,y,z)
# else
# define fgets_unlocked(x,y,z) fgets (x,y,z)
# endif
# if HAVE_DECL_FPUTC_UNLOCKED
# undef fputc
# define fputc(x,y) fputc_unlocked (x,y)
# else
# define fputc_unlocked(x,y) fputc (x,y)
# endif
# if HAVE_DECL_FPUTS_UNLOCKED
# undef fputs
# define fputs(x,y) fputs_unlocked (x,y)
# else
# define fputs_unlocked(x,y) fputs (x,y)
# endif
# if HAVE_DECL_FREAD_UNLOCKED
# undef fread
# define fread(w,x,y,z) fread_unlocked (w,x,y,z)
# else
# define fread_unlocked(w,x,y,z) fread (w,x,y,z)
# endif
# if HAVE_DECL_FWRITE_UNLOCKED
# undef fwrite
# define fwrite(w,x,y,z) fwrite_unlocked (w,x,y,z)
# else
# define fwrite_unlocked(w,x,y,z) fwrite (w,x,y,z)
# endif
# if HAVE_DECL_GETC_UNLOCKED
# undef getc
# define getc(x) getc_unlocked (x)
# else
# define getc_unlocked(x) getc (x)
# endif
# if HAVE_DECL_GETCHAR_UNLOCKED
# undef getchar
# define getchar() getchar_unlocked ()
# else
# define getchar_unlocked() getchar ()
# endif
# if HAVE_DECL_PUTC_UNLOCKED
# undef putc
# define putc(x,y) putc_unlocked (x,y)
# else
# define putc_unlocked(x,y) putc (x,y)
# endif
# if HAVE_DECL_PUTCHAR_UNLOCKED
# undef putchar
# define putchar(x) putchar_unlocked (x)
# else
# define putchar_unlocked(x) putchar (x)
# endif
# undef flockfile
# define flockfile(x) ((void) 0)
# undef ftrylockfile
# define ftrylockfile(x) 0
# undef funlockfile
# define funlockfile(x) ((void) 0)
# endif /* USE_UNLOCKED_IO */
#endif /* UNLOCKED_IO_H */

176
contrib/diff/lib/version-etc.c Normal file
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/* Utility to help print --version output in a consistent format.
Copyright (C) 1999-2004 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Jim Meyering. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
/* Specification. */
#include "version-etc.h"
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include "unlocked-io.h"
#include "gettext.h"
#define _(msgid) gettext (msgid)
/* Default copyright goes to the FSF. */
const char* version_etc_copyright =
/* Do *not* mark this string for translation. */
"Copyright (C) 2004 Free Software Foundation, Inc.";
/* Like version_etc, below, but with the NULL-terminated author list
provided via a variable of type va_list. */
void
version_etc_va (FILE *stream,
const char *command_name, const char *package,
const char *version, va_list authors)
{
unsigned int n_authors;
/* Count the number of authors. */
{
va_list tmp_authors;
#ifdef __va_copy
__va_copy (tmp_authors, authors);
#else
tmp_authors = authors;
#endif
n_authors = 0;
while (va_arg (tmp_authors, const char *) != NULL)
++n_authors;
}
if (command_name)
fprintf (stream, "%s (%s) %s\n", command_name, package, version);
else
fprintf (stream, "%s %s\n", package, version);
switch (n_authors)
{
case 0:
/* The caller must provide at least one author name. */
abort ();
case 1:
/* TRANSLATORS: %s denotes an author name. */
vfprintf (stream, _("Written by %s.\n"), authors);
break;
case 2:
/* TRANSLATORS: Each %s denotes an author name. */
vfprintf (stream, _("Written by %s and %s.\n"), authors);
break;
case 3:
/* TRANSLATORS: Each %s denotes an author name. */
vfprintf (stream, _("Written by %s, %s, and %s.\n"), authors);
break;
case 4:
/* TRANSLATORS: Each %s denotes an author name.
You can use line breaks, estimating that each author name occupies
ca. 16 screen columns and that a screen line has ca. 80 columns. */
vfprintf (stream, _("Written by %s, %s, %s,\nand %s.\n"), authors);
break;
case 5:
/* TRANSLATORS: Each %s denotes an author name.
You can use line breaks, estimating that each author name occupies
ca. 16 screen columns and that a screen line has ca. 80 columns. */
vfprintf (stream, _("Written by %s, %s, %s,\n%s, and %s.\n"), authors);
break;
case 6:
/* TRANSLATORS: Each %s denotes an author name.
You can use line breaks, estimating that each author name occupies
ca. 16 screen columns and that a screen line has ca. 80 columns. */
vfprintf (stream, _("Written by %s, %s, %s,\n%s, %s, and %s.\n"),
authors);
break;
case 7:
/* TRANSLATORS: Each %s denotes an author name.
You can use line breaks, estimating that each author name occupies
ca. 16 screen columns and that a screen line has ca. 80 columns. */
vfprintf (stream, _("Written by %s, %s, %s,\n%s, %s, %s, and %s.\n"),
authors);
break;
case 8:
/* TRANSLATORS: Each %s denotes an author name.
You can use line breaks, estimating that each author name occupies
ca. 16 screen columns and that a screen line has ca. 80 columns. */
vfprintf (stream, _("\
Written by %s, %s, %s,\n%s, %s, %s, %s,\nand %s.\n"),
authors);
break;
case 9:
/* TRANSLATORS: Each %s denotes an author name.
You can use line breaks, estimating that each author name occupies
ca. 16 screen columns and that a screen line has ca. 80 columns. */
vfprintf (stream, _("\
Written by %s, %s, %s,\n%s, %s, %s, %s,\n%s, and %s.\n"),
authors);
break;
default:
/* 10 or more authors. Use an abbreviation, since the human reader
will probably not want to read the entire list anyway. */
/* TRANSLATORS: Each %s denotes an author name.
You can use line breaks, estimating that each author name occupies
ca. 16 screen columns and that a screen line has ca. 80 columns. */
vfprintf (stream, _("\
Written by %s, %s, %s,\n%s, %s, %s, %s,\n%s, %s, and others.\n"),
authors);
break;
}
va_end (authors);
putc ('\n', stream);
fputs (version_etc_copyright, stream);
putc ('\n', stream);
fputs (_("\
This is free software; see the source for copying conditions. There is NO\n\
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"),
stream);
}
/* Display the --version information the standard way.
If COMMAND_NAME is NULL, the PACKAGE is asumed to be the name of
the program. The formats are therefore:
PACKAGE VERSION
or
COMMAND_NAME (PACKAGE) VERSION.
The author names are passed as separate arguments, with an additional
NULL argument at the end. */
void
version_etc (FILE *stream,
const char *command_name, const char *package,
const char *version, /* const char *author1, ...*/ ...)
{
va_list authors;
va_start (authors, version);
version_etc_va (stream, command_name, package, version, authors);
}

37
contrib/diff/lib/version-etc.h Normal file
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@ -0,0 +1,37 @@
/* Utility to help print --version output in a consistent format.
Copyright (C) 1999, 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Jim Meyering. */
#ifndef VERSION_ETC_H
# define VERSION_ETC_H 1
# include <stdarg.h>
# include <stdio.h>
extern const char *version_etc_copyright;
extern void version_etc_va (FILE *stream,
const char *command_name, const char *package,
const char *version, va_list authors);
extern void version_etc (FILE *stream,
const char *command_name, const char *package,
const char *version,
/* const char *author1, ...*/ ...);
#endif /* VERSION_ETC_H */

72
contrib/diff/lib/waitpid.c Normal file
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@ -0,0 +1,72 @@
/* Emulate waitpid on systems that just have wait.
Copyright (C) 1994, 1995, 1998, 1999 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.
If not, write to the Free Software Foundation,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include <errno.h>
#ifndef errno
extern int errno;
#endif
#define WAITPID_CHILDREN 8
static pid_t waited_pid[WAITPID_CHILDREN];
static int waited_status[WAITPID_CHILDREN];
pid_t
waitpid (pid_t pid, int *stat_loc, int options)
{
int i;
pid_t p;
if (!options && (pid == -1 || 0 < pid))
{
/* If we have already waited for this child, return it immediately. */
for (i = 0; i < WAITPID_CHILDREN; i++)
{
p = waited_pid[i];
if (p && (p == pid || pid == -1))
{
waited_pid[i] = 0;
goto success;
}
}
/* The child has not returned yet; wait for it, accumulating status. */
for (i = 0; i < WAITPID_CHILDREN; i++)
if (! waited_pid[i])
{
p = wait (&waited_status[i]);
if (p < 0)
return p;
if (p == pid || pid == -1)
goto success;
waited_pid[i] = p;
}
}
/* We cannot emulate this wait call, e.g. because of too many children. */
errno = EINVAL;
return -1;
success:
if (stat_loc)
*stat_loc = waited_status[i];
return p;
}

87
contrib/diff/lib/xalloc.h Normal file
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/* xalloc.h -- malloc with out-of-memory checking
Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
1999, 2000, 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef XALLOC_H_
# define XALLOC_H_
# include <stddef.h>
# ifndef __attribute__
# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__
# define __attribute__(x)
# endif
# endif
# ifndef ATTRIBUTE_NORETURN
# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
# endif
/* If this pointer is non-zero, run the specified function upon each
allocation failure. It is initialized to zero. */
extern void (*xalloc_fail_func) (void);
/* If XALLOC_FAIL_FUNC is undefined or a function that returns, this
message is output. It is translated via gettext.
Its value is "memory exhausted". */
extern char const xalloc_msg_memory_exhausted[];
/* This function is always triggered when memory is exhausted. It is
in charge of honoring the two previous items. It exits with status
exit_failure (defined in exitfail.h). This is the
function to call when one wants the program to die because of a
memory allocation failure. */
extern void xalloc_die (void) ATTRIBUTE_NORETURN;
void *xmalloc (size_t s);
void *xnmalloc (size_t n, size_t s);
void *xzalloc (size_t s);
void *xcalloc (size_t n, size_t s);
void *xrealloc (void *p, size_t s);
void *xnrealloc (void *p, size_t n, size_t s);
void *x2realloc (void *p, size_t *pn);
void *x2nrealloc (void *p, size_t *pn, size_t s);
void *xclone (void const *p, size_t s);
char *xstrdup (const char *str);
/* Return 1 if an array of N objects, each of size S, cannot exist due
to size arithmetic overflow. S must be positive and N must be
nonnegative. This is a macro, not an inline function, so that it
works correctly even when SIZE_MAX < N.
By gnulib convention, SIZE_MAX represents overflow in size
calculations, so the conservative dividend to use here is
SIZE_MAX - 1, since SIZE_MAX might represent an overflowed value.
However, malloc (SIZE_MAX) fails on all known hosts where
sizeof (ptrdiff_t) <= sizeof (size_t), so do not bother to test for
exactly-SIZE_MAX allocations on such hosts; this avoids a test and
branch when S is known to be 1. */
# define xalloc_oversized(n, s) \
((size_t) (sizeof (ptrdiff_t) <= sizeof (size_t) ? -1 : -2) / (s) < (n))
/* These macros are deprecated; they will go away soon, and are retained
temporarily only to ease conversion to the functions described above. */
# define CCLONE(p, n) xclone (p, (n) * sizeof *(p))
# define CLONE(p) xclone (p, sizeof *(p))
# define NEW(type, var) type *var = xmalloc (sizeof (type))
# define XCALLOC(type, n) xcalloc (n, sizeof (type))
# define XMALLOC(type, n) xnmalloc (n, sizeof (type))
# define XREALLOC(p, type, n) xnrealloc (p, n, sizeof (type))
# define XFREE(p) free (p)
#endif /* !XALLOC_H_ */

255
contrib/diff/lib/xmalloc.c Normal file
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@ -0,0 +1,255 @@
/* xmalloc.c -- malloc with out of memory checking
Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2003,
1999, 2000, 2002, 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include "xalloc.h"
#include <stdlib.h>
#include <string.h>
#include "gettext.h"
#define _(msgid) gettext (msgid)
#define N_(msgid) msgid
#include "error.h"
#include "exitfail.h"
#ifndef SIZE_MAX
# define SIZE_MAX ((size_t) -1)
#endif
#ifndef HAVE_MALLOC
"you must run the autoconf test for a GNU libc compatible malloc"
#endif
#ifndef HAVE_REALLOC
"you must run the autoconf test for a GNU libc compatible realloc"
#endif
/* If non NULL, call this function when memory is exhausted. */
void (*xalloc_fail_func) (void) = 0;
/* If XALLOC_FAIL_FUNC is NULL, or does return, display this message
before exiting when memory is exhausted. Goes through gettext. */
char const xalloc_msg_memory_exhausted[] = N_("memory exhausted");
void
xalloc_die (void)
{
if (xalloc_fail_func)
(*xalloc_fail_func) ();
error (exit_failure, 0, "%s", _(xalloc_msg_memory_exhausted));
/* The `noreturn' cannot be given to error, since it may return if
its first argument is 0. To help compilers understand the
xalloc_die does terminate, call abort. */
abort ();
}
/* Allocate an array of N objects, each with S bytes of memory,
dynamically, with error checking. S must be nonzero. */
static inline void *
xnmalloc_inline (size_t n, size_t s)
{
void *p;
if (xalloc_oversized (n, s) || ! (p = malloc (n * s)))
xalloc_die ();
return p;
}
void *
xnmalloc (size_t n, size_t s)
{
return xnmalloc_inline (n, s);
}
/* Allocate N bytes of memory dynamically, with error checking. */
void *
xmalloc (size_t n)
{
return xnmalloc_inline (n, 1);
}
/* Change the size of an allocated block of memory P to an array of N
objects each of S bytes, with error checking. S must be nonzero. */
static inline void *
xnrealloc_inline (void *p, size_t n, size_t s)
{
if (xalloc_oversized (n, s) || ! (p = realloc (p, n * s)))
xalloc_die ();
return p;
}
void *
xnrealloc (void *p, size_t n, size_t s)
{
return xnrealloc_inline (p, n, s);
}
/* Change the size of an allocated block of memory P to N bytes,
with error checking. */
void *
xrealloc (void *p, size_t n)
{
return xnrealloc_inline (p, n, 1);
}
/* If P is null, allocate a block of at least *PN such objects;
otherwise, reallocate P so that it contains more than *PN objects
each of S bytes. *PN must be nonzero unless P is null, and S must
be nonzero. Set *PN to the new number of objects, and return the
pointer to the new block. *PN is never set to zero, and the
returned pointer is never null.
Repeated reallocations are guaranteed to make progress, either by
allocating an initial block with a nonzero size, or by allocating a
larger block.
In the following implementation, nonzero sizes are doubled so that
repeated reallocations have O(N log N) overall cost rather than
O(N**2) cost, but the specification for this function does not
guarantee that sizes are doubled.
Here is an example of use:
int *p = NULL;
size_t used = 0;
size_t allocated = 0;
void
append_int (int value)
{
if (used == allocated)
p = x2nrealloc (p, &allocated, sizeof *p);
p[used++] = value;
}
This causes x2nrealloc to allocate a block of some nonzero size the
first time it is called.
To have finer-grained control over the initial size, set *PN to a
nonzero value before calling this function with P == NULL. For
example:
int *p = NULL;
size_t used = 0;
size_t allocated = 0;
size_t allocated1 = 1000;
void
append_int (int value)
{
if (used == allocated)
{
p = x2nrealloc (p, &allocated1, sizeof *p);
allocated = allocated1;
}
p[used++] = value;
}
*/
static inline void *
x2nrealloc_inline (void *p, size_t *pn, size_t s)
{
size_t n = *pn;
if (! p)
{
if (! n)
{
/* The approximate size to use for initial small allocation
requests, when the invoking code specifies an old size of
zero. 64 bytes is the largest "small" request for the
GNU C library malloc. */
enum { DEFAULT_MXFAST = 64 };
n = DEFAULT_MXFAST / s;
n += !n;
}
}
else
{
if (SIZE_MAX / 2 / s < n)
xalloc_die ();
n *= 2;
}
*pn = n;
return xrealloc (p, n * s);
}
void *
x2nrealloc (void *p, size_t *pn, size_t s)
{
return x2nrealloc_inline (p, pn, s);
}
/* If P is null, allocate a block of at least *PN bytes; otherwise,
reallocate P so that it contains more than *PN bytes. *PN must be
nonzero unless P is null. Set *PN to the new block's size, and
return the pointer to the new block. *PN is never set to zero, and
the returned pointer is never null. */
void *
x2realloc (void *p, size_t *pn)
{
return x2nrealloc_inline (p, pn, 1);
}
/* Allocate S bytes of zeroed memory dynamically, with error checking.
There's no need for xnzalloc (N, S), since it would be equivalent
to xcalloc (N, S). */
void *
xzalloc (size_t s)
{
return memset (xmalloc (s), 0, s);
}
/* Allocate zeroed memory for N elements of S bytes, with error
checking. S must be nonzero. */
void *
xcalloc (size_t n, size_t s)
{
void *p;
/* Test for overflow, since some calloc implementations don't have
proper overflow checks. */
if (xalloc_oversized (n, s) || ! (p = calloc (n, s)))
xalloc_die ();
return p;
}
/* Clone an object P of size S, with error checking. There's no need
for xnclone (P, N, S), since xclone (P, N * S) works without any
need for an arithmetic overflow check. */
void *
xclone (void const *p, size_t s)
{
return memcpy (xmalloc (s), p, s);
}

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/* xstrdup.c -- copy a string with out of memory checking
Copyright (C) 1990, 1996, 1998, 2001, 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
/* Specification. */
#include "xalloc.h"
#include <string.h>
/* Return a newly allocated copy of STRING. */
char *
xstrdup (const char *string)
{
return xclone (string, strlen (string) + 1);
}

295
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/* A more useful interface to strtol.
Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2003 Free
Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Jim Meyering. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#ifndef __strtol
# define __strtol strtol
# define __strtol_t long int
# define __xstrtol xstrtol
# define STRTOL_T_MINIMUM LONG_MIN
# define STRTOL_T_MAXIMUM LONG_MAX
#endif
/* Some pre-ANSI implementations (e.g. SunOS 4)
need stderr defined if assertion checking is enabled. */
#include <stdio.h>
#include <assert.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#ifndef errno
extern int errno;
#endif
#include <limits.h>
/* The extra casts work around common compiler bugs. */
#define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
#define TYPE_MINIMUM(t) ((t) (TYPE_SIGNED (t) \
? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) \
: (t) 0))
#define TYPE_MAXIMUM(t) ((t) (~ (t) 0 - TYPE_MINIMUM (t)))
#ifndef STRTOL_T_MINIMUM
# define STRTOL_T_MINIMUM TYPE_MINIMUM (__strtol_t)
# define STRTOL_T_MAXIMUM TYPE_MAXIMUM (__strtol_t)
#endif
#if defined (STDC_HEADERS) || (!defined (isascii) && !defined (HAVE_ISASCII))
# define IN_CTYPE_DOMAIN(c) 1
#else
# define IN_CTYPE_DOMAIN(c) isascii(c)
#endif
#define ISSPACE(c) (IN_CTYPE_DOMAIN (c) && isspace (c))
#include "xstrtol.h"
#if !HAVE_DECL_STRTOIMAX && !defined strtoimax
intmax_t strtoimax ();
#endif
#if !HAVE_DECL_STRTOUMAX && !defined strtoumax
uintmax_t strtoumax ();
#endif
static strtol_error
bkm_scale (__strtol_t *x, int scale_factor)
{
if (TYPE_SIGNED (__strtol_t) && *x < STRTOL_T_MINIMUM / scale_factor)
{
*x = STRTOL_T_MINIMUM;
return LONGINT_OVERFLOW;
}
if (STRTOL_T_MAXIMUM / scale_factor < *x)
{
*x = STRTOL_T_MAXIMUM;
return LONGINT_OVERFLOW;
}
*x *= scale_factor;
return LONGINT_OK;
}
static strtol_error
bkm_scale_by_power (__strtol_t *x, int base, int power)
{
strtol_error err = LONGINT_OK;
while (power--)
err |= bkm_scale (x, base);
return err;
}
/* FIXME: comment. */
strtol_error
__xstrtol (const char *s, char **ptr, int strtol_base,
__strtol_t *val, const char *valid_suffixes)
{
char *t_ptr;
char **p;
__strtol_t tmp;
strtol_error err = LONGINT_OK;
assert (0 <= strtol_base && strtol_base <= 36);
p = (ptr ? ptr : &t_ptr);
if (! TYPE_SIGNED (__strtol_t))
{
const char *q = s;
while (ISSPACE ((unsigned char) *q))
++q;
if (*q == '-')
return LONGINT_INVALID;
}
errno = 0;
tmp = __strtol (s, p, strtol_base);
if (*p == s)
{
/* If there is no number but there is a valid suffix, assume the
number is 1. The string is invalid otherwise. */
if (valid_suffixes && **p && strchr (valid_suffixes, **p))
tmp = 1;
else
return LONGINT_INVALID;
}
else if (errno != 0)
{
if (errno != ERANGE)
return LONGINT_INVALID;
err = LONGINT_OVERFLOW;
}
/* Let valid_suffixes == NULL mean `allow any suffix'. */
/* FIXME: update all callers except the ones that allow suffixes
after the number, changing last parameter NULL to `""'. */
if (!valid_suffixes)
{
*val = tmp;
return err;
}
if (**p != '\0')
{
int base = 1024;
int suffixes = 1;
strtol_error overflow;
if (!strchr (valid_suffixes, **p))
{
*val = tmp;
return err | LONGINT_INVALID_SUFFIX_CHAR;
}
if (strchr (valid_suffixes, '0'))
{
/* The ``valid suffix'' '0' is a special flag meaning that
an optional second suffix is allowed, which can change
the base. A suffix "B" (e.g. "100MB") stands for a power
of 1000, whereas a suffix "iB" (e.g. "100MiB") stands for
a power of 1024. If no suffix (e.g. "100M"), assume
power-of-1024. */
switch (p[0][1])
{
case 'i':
if (p[0][2] == 'B')
suffixes += 2;
break;
case 'B':
case 'D': /* 'D' is obsolescent */
base = 1000;
suffixes++;
break;
}
}
switch (**p)
{
case 'b':
overflow = bkm_scale (&tmp, 512);
break;
case 'B':
overflow = bkm_scale (&tmp, 1024);
break;
case 'c':
overflow = 0;
break;
case 'E': /* exa or exbi */
overflow = bkm_scale_by_power (&tmp, base, 6);
break;
case 'G': /* giga or gibi */
case 'g': /* 'g' is undocumented; for compatibility only */
overflow = bkm_scale_by_power (&tmp, base, 3);
break;
case 'k': /* kilo */
case 'K': /* kibi */
overflow = bkm_scale_by_power (&tmp, base, 1);
break;
case 'M': /* mega or mebi */
case 'm': /* 'm' is undocumented; for compatibility only */
overflow = bkm_scale_by_power (&tmp, base, 2);
break;
case 'P': /* peta or pebi */
overflow = bkm_scale_by_power (&tmp, base, 5);
break;
case 'T': /* tera or tebi */
case 't': /* 't' is undocumented; for compatibility only */
overflow = bkm_scale_by_power (&tmp, base, 4);
break;
case 'w':
overflow = bkm_scale (&tmp, 2);
break;
case 'Y': /* yotta or 2**80 */
overflow = bkm_scale_by_power (&tmp, base, 8);
break;
case 'Z': /* zetta or 2**70 */
overflow = bkm_scale_by_power (&tmp, base, 7);
break;
default:
*val = tmp;
return err | LONGINT_INVALID_SUFFIX_CHAR;
}
err |= overflow;
*p += suffixes;
if (**p)
err |= LONGINT_INVALID_SUFFIX_CHAR;
}
*val = tmp;
return err;
}
#ifdef TESTING_XSTRTO
# include <stdio.h>
# include "error.h"
char *program_name;
int
main (int argc, char **argv)
{
strtol_error s_err;
int i;
program_name = argv[0];
for (i=1; i<argc; i++)
{
char *p;
__strtol_t val;
s_err = __xstrtol (argv[i], &p, 0, &val, "bckmw");
if (s_err == LONGINT_OK)
{
printf ("%s->%lu (%s)\n", argv[i], val, p);
}
else
{
STRTOL_FATAL_ERROR (argv[i], "arg", s_err);
}
}
exit (0);
}
#endif /* TESTING_XSTRTO */

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/* A more useful interface to strtol.
Copyright (C) 1995, 1996, 1998, 1999, 2001, 2002, 2003, 2004 Free
Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef XSTRTOL_H_
# define XSTRTOL_H_ 1
# include "exitfail.h"
/* Get uintmax_t. */
# if HAVE_INTTYPES_H
# include <inttypes.h>
# else
# if HAVE_STDINT_H
# include <stdint.h>
# endif
# endif
# ifndef _STRTOL_ERROR
enum strtol_error
{
LONGINT_OK = 0,
/* These two values can be ORed together, to indicate that both
errors occurred. */
LONGINT_OVERFLOW = 1,
LONGINT_INVALID_SUFFIX_CHAR = 2,
LONGINT_INVALID_SUFFIX_CHAR_WITH_OVERFLOW = (LONGINT_INVALID_SUFFIX_CHAR
| LONGINT_OVERFLOW),
LONGINT_INVALID = 4
};
typedef enum strtol_error strtol_error;
# endif
# define _DECLARE_XSTRTOL(name, type) \
strtol_error name (const char *, char **, int, type *, const char *);
_DECLARE_XSTRTOL (xstrtol, long int)
_DECLARE_XSTRTOL (xstrtoul, unsigned long int)
_DECLARE_XSTRTOL (xstrtoimax, intmax_t)
_DECLARE_XSTRTOL (xstrtoumax, uintmax_t)
# define _STRTOL_ERROR(Exit_code, Str, Argument_type_string, Err) \
do \
{ \
switch ((Err)) \
{ \
default: \
abort (); \
\
case LONGINT_INVALID: \
error ((Exit_code), 0, "invalid %s `%s'", \
(Argument_type_string), (Str)); \
break; \
\
case LONGINT_INVALID_SUFFIX_CHAR: \
case LONGINT_INVALID_SUFFIX_CHAR | LONGINT_OVERFLOW: \
error ((Exit_code), 0, "invalid character following %s in `%s'", \
(Argument_type_string), (Str)); \
break; \
\
case LONGINT_OVERFLOW: \
error ((Exit_code), 0, "%s `%s' too large", \
(Argument_type_string), (Str)); \
break; \
} \
} \
while (0)
# define STRTOL_FATAL_ERROR(Str, Argument_type_string, Err) \
_STRTOL_ERROR (exit_failure, Str, Argument_type_string, Err)
# define STRTOL_FAIL_WARN(Str, Argument_type_string, Err) \
_STRTOL_ERROR (0, Str, Argument_type_string, Err)
#endif /* not XSTRTOL_H_ */

6
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#define __strtol strtoul
#define __strtol_t unsigned long int
#define __xstrtol xstrtoul
#define STRTOL_T_MINIMUM 0
#define STRTOL_T_MAXIMUM ULONG_MAX
#include "xstrtol.c"

37
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/* xstrtoumax.c -- A more useful interface to strtoumax.
Copyright (C) 1999, 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Paul Eggert. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#if HAVE_INTTYPES_H
# include <inttypes.h>
#elif HAVE_STDINT_H
# include <stdint.h>
#endif
#define __strtol strtoumax
#define __strtol_t uintmax_t
#define __xstrtol xstrtoumax
#ifdef UINTMAX_MAX
# define STRTOL_T_MINIMUM 0
# define STRTOL_T_MAXIMUM UINTMAX_MAX
#endif
#include "xstrtol.c"

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# Automakefile for GNU diffutils man pages
# Copyright (C) 2002 Free Software Foundation, Inc.
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2, or (at your option)
## any later version.
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
## 02111-1307, USA.
dist_man_MANS = cmp.1 diff.1 diff3.1 sdiff.1
MAINTAINERCLEANFILES = $(dist_man_MANS)
S = $(top_srcdir)/src
cmp.1: $S/cmp.c
diff.1: $S/diff.c
diff3.1: $S/diff3.c
sdiff.1: $S/sdiff.c
# Depend on configure.ac to get version number changes.
$(dist_man_MANS): $(top_srcdir)/configure.ac
base=`expr $@ : '\(.*\).1'` && \
(echo '[NAME]' && sed 's@/\* *@@; s/-/\\-/; q' $S/$$base.c) | \
$(HELP2MAN) -i - -S '$(PACKAGE) $(VERSION)' ../src/$$base | \
sed 's/^\.B info .*/.B info diff/' >$@

63
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.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.33.
.TH CMP "1" "April 2004" "diffutils 2.8.7" "User Commands"
.SH NAME
cmp \- compare two files byte by byte
.SH SYNOPSIS
.B cmp
[\fIOPTION\fR]... \fIFILE1 \fR[\fIFILE2 \fR[\fISKIP1 \fR[\fISKIP2\fR]]]
.SH DESCRIPTION
Compare two files byte by byte.
.TP
\fB\-b\fR \fB\-\-print\-bytes\fR
Print differing bytes.
.TP
\fB\-i\fR SKIP \fB\-\-ignore\-initial\fR=\fISKIP\fR
Skip the first SKIP bytes of input.
.HP
\fB\-i\fR SKIP1:SKIP2 \fB\-\-ignore\-initial\fR=\fISKIP1\fR:SKIP2
.IP
Skip the first SKIP1 bytes of FILE1 and the first SKIP2 bytes of FILE2.
.TP
\fB\-l\fR \fB\-\-verbose\fR
Output byte numbers and values of all differing bytes.
.TP
\fB\-n\fR LIMIT \fB\-\-bytes\fR=\fILIMIT\fR
Compare at most LIMIT bytes.
.TP
\fB\-s\fR \fB\-\-quiet\fR \fB\-\-silent\fR
Output nothing; yield exit status only.
.TP
\fB\-v\fR \fB\-\-version\fR
Output version info.
.TP
\fB\-\-help\fR
Output this help.
.PP
SKIP1 and SKIP2 are the number of bytes to skip in each file.
SKIP values may be followed by the following multiplicative suffixes:
kB 1000, K 1024, MB 1,000,000, M 1,048,576,
GB 1,000,000,000, G 1,073,741,824, and so on for T, P, E, Z, Y.
.PP
If a FILE is `-' or missing, read standard input.
Exit status is 0 if inputs are the same, 1 if different, 2 if trouble.
.SH AUTHOR
Written by Torbjorn Granlund and David MacKenzie.
.SH "REPORTING BUGS"
Report bugs to <bug-gnu-utils@gnu.org>.
.SH COPYRIGHT
Copyright \(co 2004 Free Software Foundation, Inc.
.br
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
.SH "SEE ALSO"
The full documentation for
.B cmp
is maintained as a Texinfo manual. If the
.B info
and
.B cmp
programs are properly installed at your site, the command
.IP
.B info diff
.PP
should give you access to the complete manual.

227
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.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.33.
.TH DIFF "1" "April 2004" "diffutils 2.8.7" "User Commands"
.SH NAME
diff \- compare files line by line
.SH SYNOPSIS
.B diff
[\fIOPTION\fR]... \fIFILES\fR
.SH DESCRIPTION
Compare files line by line.
.TP
\fB\-i\fR \fB\-\-ignore\-case\fR
Ignore case differences in file contents.
.TP
\fB\-\-ignore\-file\-name\-case\fR
Ignore case when comparing file names.
.TP
\fB\-\-no\-ignore\-file\-name\-case\fR
Consider case when comparing file names.
.TP
\fB\-E\fR \fB\-\-ignore\-tab\-expansion\fR
Ignore changes due to tab expansion.
.TP
\fB\-b\fR \fB\-\-ignore\-space\-change\fR
Ignore changes in the amount of white space.
.TP
\fB\-w\fR \fB\-\-ignore\-all\-space\fR
Ignore all white space.
.TP
\fB\-B\fR \fB\-\-ignore\-blank\-lines\fR
Ignore changes whose lines are all blank.
.TP
\fB\-I\fR RE \fB\-\-ignore\-matching\-lines\fR=\fIRE\fR
Ignore changes whose lines all match RE.
.TP
\fB\-\-strip\-trailing\-cr\fR
Strip trailing carriage return on input.
.TP
\fB\-a\fR \fB\-\-text\fR
Treat all files as text.
.TP
\fB\-c\fR \fB\-C\fR NUM \fB\-\-context\fR[=\fINUM\fR]
Output NUM (default 3) lines of copied context.
.TP
\fB\-u\fR \fB\-U\fR NUM \fB\-\-unified\fR[=\fINUM\fR]
Output NUM (default 3) lines of unified context.
.TP
\fB\-\-label\fR LABEL
Use LABEL instead of file name.
.TP
\fB\-p\fR \fB\-\-show\-c\-function\fR
Show which C function each change is in.
.TP
\fB\-F\fR RE \fB\-\-show\-function\-line\fR=\fIRE\fR
Show the most recent line matching RE.
.TP
\fB\-q\fR \fB\-\-brief\fR
Output only whether files differ.
.TP
\fB\-e\fR \fB\-\-ed\fR
Output an ed script.
.TP
\fB\-\-normal\fR
Output a normal diff.
.TP
\fB\-n\fR \fB\-\-rcs\fR
Output an RCS format diff.
.TP
\fB\-y\fR \fB\-\-side\-by\-side\fR
Output in two columns.
.TP
\fB\-W\fR NUM \fB\-\-width\fR=\fINUM\fR
Output at most NUM (default 130) print columns.
.TP
\fB\-\-left\-column\fR
Output only the left column of common lines.
.TP
\fB\-\-suppress\-common\-lines\fR
Do not output common lines.
.TP
\fB\-D\fR NAME \fB\-\-ifdef\fR=\fINAME\fR
Output merged file to show `#ifdef NAME' diffs.
.TP
\fB\-\-GTYPE\-group\-format\fR=\fIGFMT\fR
Similar, but format GTYPE input groups with GFMT.
.TP
\fB\-\-line\-format\fR=\fILFMT\fR
Similar, but format all input lines with LFMT.
.TP
\fB\-\-LTYPE\-line\-format\fR=\fILFMT\fR
Similar, but format LTYPE input lines with LFMT.
.TP
LTYPE is `old', `new', or `unchanged'.
GTYPE is LTYPE or `changed'.
.IP
GFMT may contain:
.TP
%<
lines from FILE1
.TP
%>
lines from FILE2
.TP
%=
lines common to FILE1 and FILE2
.TP
%[-][WIDTH][.[PREC]]{doxX}LETTER
printf-style spec for LETTER
.IP
LETTERs are as follows for new group, lower case for old group:
.TP
F
first line number
.TP
L
last line number
.TP
N
number of lines = L-F+1
.TP
E
F-1
.TP
M
L+1
.IP
LFMT may contain:
.TP
%L
contents of line
.TP
%l
contents of line, excluding any trailing newline
.TP
%[-][WIDTH][.[PREC]]{doxX}n
printf-style spec for input line number
.IP
Either GFMT or LFMT may contain:
.TP
%%
%
.TP
%c'C'
the single character C
.TP
%c'\eOOO'
the character with octal code OOO
.TP
\fB\-l\fR \fB\-\-paginate\fR
Pass the output through `pr' to paginate it.
.TP
\fB\-t\fR \fB\-\-expand\-tabs\fR
Expand tabs to spaces in output.
.TP
\fB\-T\fR \fB\-\-initial\-tab\fR
Make tabs line up by prepending a tab.
.TP
\fB\-\-tabsize\fR=\fINUM\fR
Tab stops are every NUM (default 8) print columns.
.TP
\fB\-r\fR \fB\-\-recursive\fR
Recursively compare any subdirectories found.
.TP
\fB\-N\fR \fB\-\-new\-file\fR
Treat absent files as empty.
.TP
\fB\-\-unidirectional\-new\-file\fR
Treat absent first files as empty.
.TP
\fB\-s\fR \fB\-\-report\-identical\-files\fR
Report when two files are the same.
.TP
\fB\-x\fR PAT \fB\-\-exclude\fR=\fIPAT\fR
Exclude files that match PAT.
.TP
\fB\-X\fR FILE \fB\-\-exclude\-from\fR=\fIFILE\fR
Exclude files that match any pattern in FILE.
.TP
\fB\-S\fR FILE \fB\-\-starting\-file\fR=\fIFILE\fR
Start with FILE when comparing directories.
.TP
\fB\-\-from\-file\fR=\fIFILE1\fR
Compare FILE1 to all operands. FILE1 can be a directory.
.TP
\fB\-\-to\-file\fR=\fIFILE2\fR
Compare all operands to FILE2. FILE2 can be a directory.
.TP
\fB\-\-horizon\-lines\fR=\fINUM\fR
Keep NUM lines of the common prefix and suffix.
.TP
\fB\-d\fR \fB\-\-minimal\fR
Try hard to find a smaller set of changes.
.TP
\fB\-\-speed\-large\-files\fR
Assume large files and many scattered small changes.
.TP
\fB\-v\fR \fB\-\-version\fR
Output version info.
.TP
\fB\-\-help\fR
Output this help.
.PP
FILES are `FILE1 FILE2' or `DIR1 DIR2' or `DIR FILE...' or `FILE... DIR'.
If \fB\-\-from\-file\fR or \fB\-\-to\-file\fR is given, there are no restrictions on FILES.
If a FILE is `-', read standard input.
Exit status is 0 if inputs are the same, 1 if different, 2 if trouble.
.SH AUTHOR
Written by Paul Eggert, Mike Haertel, David Hayes,
Richard Stallman, and Len Tower.
.SH "REPORTING BUGS"
Report bugs to <bug-gnu-utils@gnu.org>.
.SH COPYRIGHT
Copyright \(co 2004 Free Software Foundation, Inc.
.br
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
.SH "SEE ALSO"
The full documentation for
.B diff
is maintained as a Texinfo manual. If the
.B info
and
.B diff
programs are properly installed at your site, the command
.IP
.B info diff
.PP
should give you access to the complete manual.

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.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.33.
.TH DIFF3 "1" "April 2004" "diffutils 2.8.7" "User Commands"
.SH NAME
diff3 \- compare three files line by line
.SH SYNOPSIS
.B diff3
[\fIOPTION\fR]... \fIMYFILE OLDFILE YOURFILE\fR
.SH DESCRIPTION
Compare three files line by line.
.TP
\fB\-e\fR \fB\-\-ed\fR
Output unmerged changes from OLDFILE to YOURFILE into MYFILE.
.TP
\fB\-E\fR \fB\-\-show\-overlap\fR
Output unmerged changes, bracketing conflicts.
.TP
\fB\-A\fR \fB\-\-show\-all\fR
Output all changes, bracketing conflicts.
.TP
\fB\-x\fR \fB\-\-overlap\-only\fR
Output overlapping changes.
.TP
\fB\-X\fR
Output overlapping changes, bracketing them.
.TP
\fB\-3\fR \fB\-\-easy\-only\fR
Output unmerged nonoverlapping changes.
.TP
\fB\-m\fR \fB\-\-merge\fR
Output merged file instead of ed script (default \fB\-A\fR).
.TP
\fB\-L\fR LABEL \fB\-\-label\fR=\fILABEL\fR
Use LABEL instead of file name.
.TP
\fB\-i\fR
Append `w' and `q' commands to ed scripts.
.TP
\fB\-a\fR \fB\-\-text\fR
Treat all files as text.
.TP
\fB\-\-strip\-trailing\-cr\fR
Strip trailing carriage return on input.
.TP
\fB\-T\fR \fB\-\-initial\-tab\fR
Make tabs line up by prepending a tab.
.TP
\fB\-\-diff\-program\fR=\fIPROGRAM\fR
Use PROGRAM to compare files.
.TP
\fB\-v\fR \fB\-\-version\fR
Output version info.
.TP
\fB\-\-help\fR
Output this help.
.PP
If a FILE is `-', read standard input.
Exit status is 0 if successful, 1 if conflicts, 2 if trouble.
.SH AUTHOR
Written by Randy Smith.
.SH "REPORTING BUGS"
Report bugs to <bug-gnu-utils@gnu.org>.
.SH COPYRIGHT
Copyright \(co 2004 Free Software Foundation, Inc.
.br
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
.SH "SEE ALSO"
The full documentation for
.B diff3
is maintained as a Texinfo manual. If the
.B info
and
.B diff3
programs are properly installed at your site, the command
.IP
.B info diff
.PP
should give you access to the complete manual.

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.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.33.
.TH SDIFF "1" "April 2004" "diffutils 2.8.7" "User Commands"
.SH NAME
sdiff \- side-by-side merge of file differences
.SH SYNOPSIS
.B sdiff
[\fIOPTION\fR]... \fIFILE1 FILE2\fR
.SH DESCRIPTION
Side-by-side merge of file differences.
.TP
\fB\-o\fR FILE \fB\-\-output\fR=\fIFILE\fR
Operate interactively, sending output to FILE.
.TP
\fB\-i\fR \fB\-\-ignore\-case\fR
Consider upper- and lower-case to be the same.
.TP
\fB\-E\fR \fB\-\-ignore\-tab\-expansion\fR
Ignore changes due to tab expansion.
.TP
\fB\-b\fR \fB\-\-ignore\-space\-change\fR
Ignore changes in the amount of white space.
.TP
\fB\-W\fR \fB\-\-ignore\-all\-space\fR
Ignore all white space.
.TP
\fB\-B\fR \fB\-\-ignore\-blank\-lines\fR
Ignore changes whose lines are all blank.
.TP
\fB\-I\fR RE \fB\-\-ignore\-matching\-lines\fR=\fIRE\fR
Ignore changes whose lines all match RE.
.TP
\fB\-\-strip\-trailing\-cr\fR
Strip trailing carriage return on input.
.TP
\fB\-a\fR \fB\-\-text\fR
Treat all files as text.
.TP
\fB\-w\fR NUM \fB\-\-width\fR=\fINUM\fR
Output at most NUM (default 130) print columns.
.TP
\fB\-l\fR \fB\-\-left\-column\fR
Output only the left column of common lines.
.TP
\fB\-s\fR \fB\-\-suppress\-common\-lines\fR
Do not output common lines.
.TP
\fB\-t\fR \fB\-\-expand\-tabs\fR
Expand tabs to spaces in output.
.TP
\fB\-\-tabsize\fR=\fINUM\fR
Tab stops are every NUM (default 8) print columns.
.TP
\fB\-d\fR \fB\-\-minimal\fR
Try hard to find a smaller set of changes.
.TP
\fB\-H\fR \fB\-\-speed\-large\-files\fR
Assume large files and many scattered small changes.
.TP
\fB\-\-diff\-program\fR=\fIPROGRAM\fR
Use PROGRAM to compare files.
.TP
\fB\-v\fR \fB\-\-version\fR
Output version info.
.TP
\fB\-\-help\fR
Output this help.
.PP
If a FILE is `-', read standard input.
Exit status is 0 if inputs are the same, 1 if different, 2 if trouble.
.SH AUTHOR
Written by Thomas Lord.
.SH "REPORTING BUGS"
Report bugs to <bug-gnu-utils@gnu.org>.
.SH COPYRIGHT
Copyright \(co 2004 Free Software Foundation, Inc.
.br
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
.SH "SEE ALSO"
The full documentation for
.B sdiff
is maintained as a Texinfo manual. If the
.B info
and
.B sdiff
programs are properly installed at your site, the command
.IP
.B info diff
.PP
should give you access to the complete manual.

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# Automakefile for GNU diffutils programs.
# Copyright (C) 2001, 2002 Free Software Foundation, Inc.
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2, or (at your option)
## any later version.
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
## 02111-1307, USA.
bin_PROGRAMS = cmp diff diff3 sdiff
noinst_HEADERS = system.h
localedir = $(datadir)/locale
AM_CPPFLAGS = -I../lib -I$(top_srcdir)/lib
LDADD = ../lib/libdiffutils.a @LIBINTL@
diff_LDADD = $(LDADD) @LIB_CLOCK_GETTIME@
cmp_SOURCES = cmp.c
diff3_SOURCES = diff3.c
sdiff_SOURCES = sdiff.c
diff_SOURCES = \
analyze.c context.c diff.c diff.h dir.c ed.c ifdef.c io.c \
normal.c side.c util.c
MOSTLYCLEANFILES = paths.h paths.ht
cmp.$(OBJEXT) diff3.$(OBJEXT) diff.$(OBJEXT) sdiff.$(OBJEXT): paths.h
paths.h:
(echo '#define DEFAULT_DIFF_PROGRAM "$(bindir)/'`echo diff|sed '$(transform)'`'"' && \
echo '#define LOCALEDIR "$(localedir)"') >$@t
mv $@t $@

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/* cmp - compare two files byte by byte
Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 2001,
2002, 2004 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.
If not, write to the Free Software Foundation,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "system.h"
#include "paths.h"
#include <stdio.h>
#include <c-stack.h>
#include <cmpbuf.h>
#include <error.h>
#include <exit.h>
#include <exitfail.h>
#include <file-type.h>
#include <getopt.h>
#include <hard-locale.h>
#include <inttostr.h>
#include <setmode.h>
#include <unlocked-io.h>
#include <version-etc.h>
#include <xalloc.h>
#include <xstrtol.h>
#if defined LC_MESSAGES && ENABLE_NLS
# define hard_locale_LC_MESSAGES hard_locale (LC_MESSAGES)
#else
# define hard_locale_LC_MESSAGES 0
#endif
static int cmp (void);
static off_t file_position (int);
static size_t block_compare (word const *, word const *);
static size_t block_compare_and_count (word const *, word const *, off_t *);
static void sprintc (char *, unsigned char);
/* Name under which this program was invoked. */
char *program_name;
/* Filenames of the compared files. */
static char const *file[2];
/* File descriptors of the files. */
static int file_desc[2];
/* Status of the files. */
static struct stat stat_buf[2];
/* Read buffers for the files. */
static word *buffer[2];
/* Optimal block size for the files. */
static size_t buf_size;
/* Initial prefix to ignore for each file. */
static off_t ignore_initial[2];
/* Number of bytes to compare. */
static uintmax_t bytes = UINTMAX_MAX;
/* Output format. */
static enum comparison_type
{
type_first_diff, /* Print the first difference. */
type_all_diffs, /* Print all differences. */
type_status /* Exit status only. */
} comparison_type;
/* If nonzero, print values of bytes quoted like cat -t does. */
static bool opt_print_bytes;
/* Values for long options that do not have single-letter equivalents. */
enum
{
HELP_OPTION = CHAR_MAX + 1
};
static struct option const long_options[] =
{
{"print-bytes", 0, 0, 'b'},
{"print-chars", 0, 0, 'c'}, /* obsolescent as of diffutils 2.7.3 */
{"ignore-initial", 1, 0, 'i'},
{"verbose", 0, 0, 'l'},
{"bytes", 1, 0, 'n'},
{"silent", 0, 0, 's'},
{"quiet", 0, 0, 's'},
{"version", 0, 0, 'v'},
{"help", 0, 0, HELP_OPTION},
{0, 0, 0, 0}
};
static void try_help (char const *, char const *) __attribute__((noreturn));
static void
try_help (char const *reason_msgid, char const *operand)
{
if (reason_msgid)
error (0, 0, _(reason_msgid), operand);
error (EXIT_TROUBLE, 0,
_("Try `%s --help' for more information."), program_name);
abort ();
}
static char const valid_suffixes[] = "kKMGTPEZY0";
/* Update ignore_initial[F] according to the result of parsing an
*operand ARGPTR of --ignore-initial, updating *ARGPTR to point
*after the operand. If DELIMITER is nonzero, the operand may be
*followed by DELIMITER; otherwise it must be null-terminated. */
static void
specify_ignore_initial (int f, char **argptr, char delimiter)
{
uintmax_t val;
off_t o;
char const *arg = *argptr;
strtol_error e = xstrtoumax (arg, argptr, 0, &val, valid_suffixes);
if (! (e == LONGINT_OK
|| (e == LONGINT_INVALID_SUFFIX_CHAR && **argptr == delimiter))
|| (o = val) < 0 || o != val || val == UINTMAX_MAX)
try_help ("invalid --ignore-initial value `%s'", arg);
if (ignore_initial[f] < o)
ignore_initial[f] = o;
}
/* Specify the output format. */
static void
specify_comparison_type (enum comparison_type t)
{
if (comparison_type && comparison_type != t)
try_help ("options -l and -s are incompatible", 0);
comparison_type = t;
}
static void
check_stdout (void)
{
if (ferror (stdout))
error (EXIT_TROUBLE, 0, "%s", _("write failed"));
else if (fclose (stdout) != 0)
error (EXIT_TROUBLE, errno, "%s", _("standard output"));
}
static char const * const option_help_msgid[] = {
N_("-b --print-bytes Print differing bytes."),
N_("-i SKIP --ignore-initial=SKIP Skip the first SKIP bytes of input."),
N_("-i SKIP1:SKIP2 --ignore-initial=SKIP1:SKIP2"),
N_(" Skip the first SKIP1 bytes of FILE1 and the first SKIP2 bytes of FILE2."),
N_("-l --verbose Output byte numbers and values of all differing bytes."),
N_("-n LIMIT --bytes=LIMIT Compare at most LIMIT bytes."),
N_("-s --quiet --silent Output nothing; yield exit status only."),
N_("-v --version Output version info."),
N_("--help Output this help."),
0
};
static void
usage (void)
{
char const * const *p;
printf (_("Usage: %s [OPTION]... FILE1 [FILE2 [SKIP1 [SKIP2]]]\n"),
program_name);
printf ("%s\n\n", _("Compare two files byte by byte."));
for (p = option_help_msgid; *p; p++)
printf (" %s\n", _(*p));
printf ("\n%s\n%s\n\n%s\n%s\n\n%s\n",
_("SKIP1 and SKIP2 are the number of bytes to skip in each file."),
_("SKIP values may be followed by the following multiplicative suffixes:\n\
kB 1000, K 1024, MB 1,000,000, M 1,048,576,\n\
GB 1,000,000,000, G 1,073,741,824, and so on for T, P, E, Z, Y."),
_("If a FILE is `-' or missing, read standard input."),
_("Exit status is 0 if inputs are the same, 1 if different, 2 if trouble."),
_("Report bugs to <bug-gnu-utils@gnu.org>."));
}
int
main (int argc, char **argv)
{
int c, f, exit_status;
size_t words_per_buffer;
exit_failure = EXIT_TROUBLE;
initialize_main (&argc, &argv);
program_name = argv[0];
setlocale (LC_ALL, "");
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
c_stack_action (0);
/* Parse command line options. */
while ((c = getopt_long (argc, argv, "bci:ln:sv", long_options, 0))
!= -1)
switch (c)
{
case 'b':
case 'c': /* 'c' is obsolescent as of diffutils 2.7.3 */
opt_print_bytes = true;
break;
case 'i':
specify_ignore_initial (0, &optarg, ':');
if (*optarg++ == ':')
specify_ignore_initial (1, &optarg, 0);
else if (ignore_initial[1] < ignore_initial[0])
ignore_initial[1] = ignore_initial[0];
break;
case 'l':
specify_comparison_type (type_all_diffs);
break;
case 'n':
{
uintmax_t n;
if (xstrtoumax (optarg, 0, 0, &n, valid_suffixes) != LONGINT_OK)
try_help ("invalid --bytes value `%s'", optarg);
if (n < bytes)
bytes = n;
}
break;
case 's':
specify_comparison_type (type_status);
break;
case 'v':
/* TRANSLATORS: Please translate the second "o" in "Torbjorn
Granlund" to an o-with-umlaut (U+00F6, LATIN SMALL LETTER O
WITH DIAERESIS) if possible. */
version_etc (stdout, "cmp", PACKAGE_NAME, PACKAGE_VERSION,
_("Torbjorn Granlund"), "David MacKenzie", (char *) 0);
check_stdout ();
return EXIT_SUCCESS;
case HELP_OPTION:
usage ();
check_stdout ();
return EXIT_SUCCESS;
default:
try_help (0, 0);
}
if (optind == argc)
try_help ("missing operand after `%s'", argv[argc - 1]);
file[0] = argv[optind++];
file[1] = optind < argc ? argv[optind++] : "-";
for (f = 0; f < 2 && optind < argc; f++)
{
char *arg = argv[optind++];
specify_ignore_initial (f, &arg, 0);
}
if (optind < argc)
try_help ("extra operand `%s'", argv[optind]);
for (f = 0; f < 2; f++)
{
/* If file[1] is "-", treat it first; this avoids a misdiagnostic if
stdin is closed and opening file[0] yields file descriptor 0. */
int f1 = f ^ (strcmp (file[1], "-") == 0);
/* Two files with the same name and offset are identical.
But wait until we open the file once, for proper diagnostics. */
if (f && ignore_initial[0] == ignore_initial[1]
&& file_name_cmp (file[0], file[1]) == 0)
return EXIT_SUCCESS;
file_desc[f1] = (strcmp (file[f1], "-") == 0
? STDIN_FILENO
: open (file[f1], O_RDONLY, 0));
if (file_desc[f1] < 0 || fstat (file_desc[f1], stat_buf + f1) != 0)
{
if (file_desc[f1] < 0 && comparison_type == type_status)
exit (EXIT_TROUBLE);
else
error (EXIT_TROUBLE, errno, "%s", file[f1]);
}
set_binary_mode (file_desc[f1], true);
}
/* If the files are links to the same inode and have the same file position,
they are identical. */
if (0 < same_file (&stat_buf[0], &stat_buf[1])
&& same_file_attributes (&stat_buf[0], &stat_buf[1])
&& file_position (0) == file_position (1))
return EXIT_SUCCESS;
/* If output is redirected to the null device, we may assume `-s'. */
if (comparison_type != type_status)
{
struct stat outstat, nullstat;
if (fstat (STDOUT_FILENO, &outstat) == 0
&& stat (NULL_DEVICE, &nullstat) == 0
&& 0 < same_file (&outstat, &nullstat))
comparison_type = type_status;
}
/* If only a return code is needed,
and if both input descriptors are associated with plain files,
conclude that the files differ if they have different sizes
and if more bytes will be compared than are in the smaller file. */
if (comparison_type == type_status
&& S_ISREG (stat_buf[0].st_mode)
&& S_ISREG (stat_buf[1].st_mode))
{
off_t s0 = stat_buf[0].st_size - file_position (0);
off_t s1 = stat_buf[1].st_size - file_position (1);
if (s0 < 0)
s0 = 0;
if (s1 < 0)
s1 = 0;
if (s0 != s1 && MIN (s0, s1) < bytes)
exit (EXIT_FAILURE);
}
/* Get the optimal block size of the files. */
buf_size = buffer_lcm (STAT_BLOCKSIZE (stat_buf[0]),
STAT_BLOCKSIZE (stat_buf[1]),
PTRDIFF_MAX - sizeof (word));
/* Allocate word-aligned buffers, with space for sentinels at the end. */
words_per_buffer = (buf_size + 2 * sizeof (word) - 1) / sizeof (word);
buffer[0] = xmalloc (2 * sizeof (word) * words_per_buffer);
buffer[1] = buffer[0] + words_per_buffer;
exit_status = cmp ();
for (f = 0; f < 2; f++)
if (close (file_desc[f]) != 0)
error (EXIT_TROUBLE, errno, "%s", file[f]);
if (exit_status != 0 && comparison_type != type_status)
check_stdout ();
exit (exit_status);
return exit_status;
}
/* Compare the two files already open on `file_desc[0]' and `file_desc[1]',
using `buffer[0]' and `buffer[1]'.
Return EXIT_SUCCESS if identical, EXIT_FAILURE if different,
>1 if error. */
static int
cmp (void)
{
off_t line_number = 1; /* Line number (1...) of difference. */
off_t byte_number = 1; /* Byte number (1...) of difference. */
uintmax_t remaining = bytes; /* Remaining number of bytes to compare. */
size_t read0, read1; /* Number of bytes read from each file. */
size_t first_diff; /* Offset (0...) in buffers of 1st diff. */
size_t smaller; /* The lesser of `read0' and `read1'. */
word *buffer0 = buffer[0];
word *buffer1 = buffer[1];
char *buf0 = (char *) buffer0;
char *buf1 = (char *) buffer1;
int ret = EXIT_SUCCESS;
int f;
int offset_width;
if (comparison_type == type_all_diffs)
{
off_t byte_number_max = MIN (bytes, TYPE_MAXIMUM (off_t));
for (f = 0; f < 2; f++)
if (S_ISREG (stat_buf[f].st_mode))
{
off_t file_bytes = stat_buf[f].st_size - file_position (f);
if (file_bytes < byte_number_max)
byte_number_max = file_bytes;
}
for (offset_width = 1; (byte_number_max /= 10) != 0; offset_width++)
continue;
}
for (f = 0; f < 2; f++)
{
off_t ig = ignore_initial[f];
if (ig && file_position (f) == -1)
{
/* lseek failed; read and discard the ignored initial prefix. */
do
{
size_t bytes_to_read = MIN (ig, buf_size);
size_t r = block_read (file_desc[f], buf0, bytes_to_read);
if (r != bytes_to_read)
{
if (r == SIZE_MAX)
error (EXIT_TROUBLE, errno, "%s", file[f]);
break;
}
ig -= r;
}
while (ig);
}
}
do
{
size_t bytes_to_read = buf_size;
if (remaining != UINTMAX_MAX)
{
if (remaining < bytes_to_read)
bytes_to_read = remaining;
remaining -= bytes_to_read;
}
read0 = block_read (file_desc[0], buf0, bytes_to_read);
if (read0 == SIZE_MAX)
error (EXIT_TROUBLE, errno, "%s", file[0]);
read1 = block_read (file_desc[1], buf1, bytes_to_read);
if (read1 == SIZE_MAX)
error (EXIT_TROUBLE, errno, "%s", file[1]);
/* Insert sentinels for the block compare. */
buf0[read0] = ~buf1[read0];
buf1[read1] = ~buf0[read1];
/* If the line number should be written for differing files,
compare the blocks and count the number of newlines
simultaneously. */
first_diff = (comparison_type == type_first_diff
? block_compare_and_count (buffer0, buffer1, &line_number)
: block_compare (buffer0, buffer1));
byte_number += first_diff;
smaller = MIN (read0, read1);
if (first_diff < smaller)
{
switch (comparison_type)
{
case type_first_diff:
{
char byte_buf[INT_BUFSIZE_BOUND (off_t)];
char line_buf[INT_BUFSIZE_BOUND (off_t)];
char const *byte_num = offtostr (byte_number, byte_buf);
char const *line_num = offtostr (line_number, line_buf);
if (!opt_print_bytes)
{
/* See POSIX 1003.1-2001 for this format. This
message is used only in the POSIX locale, so it
need not be translated. */
static char const char_message[] =
"%s %s differ: char %s, line %s\n";
/* The POSIX rationale recommends using the word
"byte" outside the POSIX locale. Some gettext
implementations translate even in the POSIX
locale if certain other environment variables
are set, so use "byte" if a translation is
available, or if outside the POSIX locale. */
static char const byte_msgid[] =
N_("%s %s differ: byte %s, line %s\n");
char const *byte_message = _(byte_msgid);
bool use_byte_message = (byte_message != byte_msgid
|| hard_locale_LC_MESSAGES);
printf (use_byte_message ? byte_message : char_message,
file[0], file[1], byte_num, line_num);
}
else
{
unsigned char c0 = buf0[first_diff];
unsigned char c1 = buf1[first_diff];
char s0[5];
char s1[5];
sprintc (s0, c0);
sprintc (s1, c1);
printf (_("%s %s differ: byte %s, line %s is %3o %s %3o %s\n"),
file[0], file[1], byte_num, line_num,
c0, s0, c1, s1);
}
}
/* Fall through. */
case type_status:
return EXIT_FAILURE;
case type_all_diffs:
do
{
unsigned char c0 = buf0[first_diff];
unsigned char c1 = buf1[first_diff];
if (c0 != c1)
{
char byte_buf[INT_BUFSIZE_BOUND (off_t)];
char const *byte_num = offtostr (byte_number, byte_buf);
if (!opt_print_bytes)
{
/* See POSIX 1003.1-2001 for this format. */
printf ("%*s %3o %3o\n",
offset_width, byte_num, c0, c1);
}
else
{
char s0[5];
char s1[5];
sprintc (s0, c0);
sprintc (s1, c1);
printf ("%*s %3o %-4s %3o %s\n",
offset_width, byte_num, c0, s0, c1, s1);
}
}
byte_number++;
first_diff++;
}
while (first_diff < smaller);
ret = EXIT_FAILURE;
break;
}
}
if (read0 != read1)
{
if (comparison_type != type_status)
{
/* See POSIX 1003.1-2001 for this format. */
fprintf (stderr, _("cmp: EOF on %s\n"), file[read1 < read0]);
}
return EXIT_FAILURE;
}
}
while (read0 == buf_size);
return ret;
}
/* Compare two blocks of memory P0 and P1 until they differ,
and count the number of '\n' occurrences in the common
part of P0 and P1.
If the blocks are not guaranteed to be different, put sentinels at the ends
of the blocks before calling this function.
Return the offset of the first byte that differs.
Increment *COUNT by the count of '\n' occurrences. */
static size_t
block_compare_and_count (word const *p0, word const *p1, off_t *count)
{
word l; /* One word from first buffer. */
word const *l0, *l1; /* Pointers into each buffer. */
char const *c0, *c1; /* Pointers for finding exact address. */
size_t cnt = 0; /* Number of '\n' occurrences. */
word nnnn; /* Newline, sizeof (word) times. */
int i;
nnnn = 0;
for (i = 0; i < sizeof nnnn; i++)
nnnn = (nnnn << CHAR_BIT) | '\n';
/* Find the rough position of the first difference by reading words,
not bytes. */
for (l0 = p0, l1 = p1; (l = *l0) == *l1; l0++, l1++)
{
l ^= nnnn;
for (i = 0; i < sizeof l; i++)
{
unsigned char uc = l;
cnt += ! uc;
l >>= CHAR_BIT;
}
}
/* Find the exact differing position (endianness independent). */
for (c0 = (char const *) l0, c1 = (char const *) l1;
*c0 == *c1;
c0++, c1++)
cnt += *c0 == '\n';
*count += cnt;
return c0 - (char const *) p0;
}
/* Compare two blocks of memory P0 and P1 until they differ.
If the blocks are not guaranteed to be different, put sentinels at the ends
of the blocks before calling this function.
Return the offset of the first byte that differs. */
static size_t
block_compare (word const *p0, word const *p1)
{
word const *l0, *l1;
char const *c0, *c1;
/* Find the rough position of the first difference by reading words,
not bytes. */
for (l0 = p0, l1 = p1; *l0 == *l1; l0++, l1++)
continue;
/* Find the exact differing position (endianness independent). */
for (c0 = (char const *) l0, c1 = (char const *) l1;
*c0 == *c1;
c0++, c1++)
continue;
return c0 - (char const *) p0;
}
/* Put into BUF the unsigned char C, making unprintable bytes
visible by quoting like cat -t does. */
static void
sprintc (char *buf, unsigned char c)
{
if (! isprint (c))
{
if (c >= 128)
{
*buf++ = 'M';
*buf++ = '-';
c -= 128;
}
if (c < 32)
{
*buf++ = '^';
c += 64;
}
else if (c == 127)
{
*buf++ = '^';
c = '?';
}
}
*buf++ = c;
*buf = 0;
}
/* Position file F to ignore_initial[F] bytes from its initial position,
and yield its new position. Don't try more than once. */
static off_t
file_position (int f)
{
static bool positioned[2];
static off_t position[2];
if (! positioned[f])
{
positioned[f] = true;
position[f] = lseek (file_desc[f], ignore_initial[f], SEEK_CUR);
}
return position[f];
}

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