Commit Graph

43 Commits

Author SHA1 Message Date
Eitan Adler
08aa7c869f Add 'static' where able. 2013-06-02 17:55:00 +00:00
Ed Schouten
f9d4afb439 Put some static keywords in the source code.
For these simple utilities, it doesn't harm to make all global variables
static. In fact, this allows the compiler to perform better forms of
optimisation and analysis.
2011-10-31 08:59:17 +00:00
Jilles Tjoelker
0cf90cd1d3 bin: Prefer strrchr() to rindex().
This removes the last index/rindex usage from /bin.
2011-03-15 22:22:11 +00:00
Jilles Tjoelker
dc00aa5dd6 ln: Allow a trailing slash when creating a link to a directory.
In the 'ln source... directory' synopsis, the basename of each source
determines the name of the created link. Determine this using basename(3)
instead of strrchr(..., '/') which is incorrect if the pathname ends in a
slash.

The patch is somewhat changed to allow for basename(3) implementations that
change the passed pathname, and to fix the -w option's checking also.
The code to compare directory entries only applies to hard links, which
cannot be created to directories using ln.

Example:
  ln -s /etc/defaults/ /tmp
This should create a symlink named defaults.

PR:		121568
Submitted by:	Ighighi
MFC after:	1 week
2010-04-21 21:57:03 +00:00
Jilles Tjoelker
5d66b54e27 ln: Refuse deleting a directory entry by hardlinking it to itself.
Two pathnames refer to the same directory entry iff the directories match
and the final components' names match.

Example: (assuming file1 is an existing file)
  ln -f file1 file1
This now fails while leaving file1 intact. It used to delete file1 and then
complain it cannot be linked because it is gone.

With -i, this error is detected before the question is asked.

MFC after:	2 weeks
2010-04-17 22:39:53 +00:00
Jilles Tjoelker
80a0e9b5f5 Allow creating hard links to symlinks using ln(1).
This implements the POSIX.1-2008 -L and -P flags.

The default remains to create hard links to the target of symlinks.

Approved by:	re (kib), ed (mentor)
2009-07-19 17:35:23 +00:00
Giorgos Keramidas
d605a06c6e Unbreak last commit to ln for amd64.
Cast string precision to `int'.  amd64 systems warn about the
field precision being `long int' if we don't, and pathnames are
normally short enough to fit in an `int'.

Noticed by:	pav
2008-06-07 09:37:30 +00:00
Giorgos Keramidas
3595f21aae Add a -w warning flag to ln(1). When the -w option is enabled,
ln(1) checks to see if the source of a symlink, i.e. the file it
should point to actually exists.  The default is the old ln
behavior, that does not check, to avoid surprising people who may
be using ln(1) in scripts or other non-interactive places.

PR:		bin/7265
Submitted by:	Joel Ray Holveck, detlev!joelh at mail.camalott.com
MFC after:	2 weeks
2008-06-06 08:27:59 +00:00
Ruslan Ermilov
8090694427 Express in the usage() and SYNOPSIS that -F depends on -s, and
that -f and -i are exclusive.
2007-11-17 21:01:22 +00:00
Ruslan Ermilov
cadf8ad71c Swap "source"/"target" where appropriate, to match documentation. 2007-11-17 20:24:58 +00:00
Gleb Smirnoff
5e09de40c3 Add '-F' option which allows to delete existing empty directories, when
creating symbolic links.

PR:		bin/92149
Submitted by:	Eugene Grosbein <eugen grosbein.pp.ru>
2006-02-14 11:08:05 +00:00
Ruslan Ermilov
a89237ae95 Sync program's usage() with manpage's SYNOPSIS. 2005-02-09 17:37:39 +00:00
Warner Losh
9ddb49cbe4 /*- or .\"- or #- to begin license clauses. 2005-01-10 08:39:26 +00:00
Mark Murray
6195fb4102 Remove clause 3 from the UCB licenses.
OK'ed by:	imp, core
2004-04-06 20:06:54 +00:00
David E. O'Brien
09a80d4867 Quiet warnings about copyright[]. 2003-05-01 16:58:57 +00:00
Mark Murray
f193e3fc68 Fix an easy WARNS. 2002-07-31 16:53:59 +00:00
David E. O'Brien
5eb43ac2f7 Consistently use __FBSDID 2002-06-30 05:13:54 +00:00
Tim J. Robbins
a24ce1c859 Check that snprintf() does not truncate the destination pathname when
linking into a directory.
2002-06-29 04:10:40 +00:00
Tim J. Robbins
dab94652b1 Reject options, handle "--" end-of-options marker in link(1). 2002-05-30 00:57:38 +00:00
Chris D. Faulhaber
75a011263c Add semicolon to empty default case to silence warning. 2002-05-11 00:45:01 +00:00
Mark Murray
4b4ed2fe6a Fix warnings inspired by lint, a commercial lint and WARNS=4. 2002-02-22 21:11:03 +00:00
Warner Losh
46251dde8f o __P has been reoved
o Old-style K&R declarations have been converted to new C89 style
o register has been removed
o prototype for main() has been removed (gcc3 makes it an error)
o int main(int argc, char *argv[]) is the preferred main definition.
o Attempt to not break style(9) conformance for declarations more than
  they already are.
2002-02-02 06:48:10 +00:00
Warner Losh
c215688fd2 Use PATH_MAX in preference to MAXPATHLEN.
Also sort declarations per style(9) (big arrays come last) while I'm
in the area.
2001-05-29 17:27:56 +00:00
Kris Kennaway
97dbc8f347 Silence WARNS=2 and BDECFLAGS on i386 and alpha
MFC After:	1 week
2001-05-20 04:54:15 +00:00
Maxim Sobolev
c9e7c66776 Bring in -h' compatability option and its alias -n' to match NetBSD and GNU
semantics.

style(9) Reviewed by:
Obtained from:	NetBSD
2001-04-26 17:15:57 +00:00
Sheldon Hearn
7e7574af89 Fix style bugs and inconsistencies introduced in rev 1.16.
Submitted by:	bde
2000-08-17 16:08:06 +00:00
Warner Losh
2c15efcfb5 Don't explicitly declare optarg and optind. These are declared in
unistd.h, which is already included.
2000-08-16 05:14:49 +00:00
Sheldon Hearn
7fcd5ae0d0 Add the -i option, as found in rm(1), which provides an interactive
mode in which the user is prompted for confirmation before an
existing file is replaced.

Submitted by:	alex
2000-08-14 08:48:55 +00:00
Sheldon Hearn
d71e172ac6 Add link(1) and unlink(1) as special cases of ln(1) and rm(1)
respectively, in accordance with SUSv2.

This differs from the approach taken in NetBSD, but provides
less obscure error messages in at least the EISDIR case and
does not take up additional disk space for new binaries.

PR:		13071
PR:		13074
Requested by:	James Howard <howardjp@wam.umd.edu>
1999-12-20 16:13:47 +00:00
David E. O'Brien
b598b07322 Add verbose processing flag. 1999-09-11 10:06:56 +00:00
Peter Wemm
2a4562393f $Id$ -> $FreeBSD$ 1999-08-27 23:15:48 +00:00
Philippe Charnier
2a170595d1 Correct use of .Nm. Add rcsid. 1998-05-15 06:19:05 +00:00
Philippe Charnier
749d4bb649 Cosmetic change in usage string. 1997-06-06 06:40:06 +00:00
Warner Losh
93ef08af3e compare return value from getopt against -1 rather than EOF, per the final
posix standard on the topic.
1997-03-28 15:24:41 +00:00
Peter Wemm
b97fa2ef50 Revert $FreeBSD$ to $Id$ 1997-02-22 14:13:04 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Steve Price
78b09ffeaf -Wall cleaning. 1996-12-14 06:08:03 +00:00
Peter Wemm
7d4b6187df Nuke the undocumented -F flag, since it doesn't do anything anymore.
It used to allow root to hard-link directories (and screw up programs that
expexted the ".." entry to point to the parent dir)
1996-05-24 20:36:16 +00:00
Bruce Evans
9195f40982 Use lstat() instead of stat() for checking if the final source file exists,
so that `ln -fs' works when the source is a symlink pointing to a non-
existent file.
1994-12-06 18:50:44 +00:00
David Greenman
89730b290a Added $Id$ 1994-09-24 02:59:15 +00:00
Poul-Henning Kamp
c4278e8b60 fix ln to accept -f again. Thanks Bruce. Seems that Joe Grosch isn't
quite as safe as I thought.  I will have to look much closer on his
patches.  Damn.
1994-09-20 07:24:51 +00:00
Poul-Henning Kamp
3a15523260 /home/phk/jg 1994-09-20 06:28:16 +00:00
Rodney W. Grimes
4b88c807ea BSD 4.4 Lite bin Sources 1994-05-26 06:18:55 +00:00