Commit Graph

631 Commits

Author SHA1 Message Date
Michael Haro
9db4bbf32a When a STAT command is sent to ftpd as an out-of-band transmission during
a file transfer, the command was mishandled on every other receipt of the
command.

PR:		13261
Submitted by:	Ian Lepore <ian@plutotech.com>
1999-09-12 01:27:46 +00:00
Mark Murray
b2b9ed4833 Fix more Common Error brokenness. 1999-09-06 20:18:44 +00:00
Mark Murray
9891baa632 Add common error lib for the Kerberos case. 1999-09-06 06:32:02 +00:00
John Polstra
825316056a Make jdk-1.1.8 work again. It turns out that some code inside
libjava peeks into the dynamic linker's private Obj_Entry structures.
My recent changes introduced some new members near the front of
the structures, causing libjava to get the wrong fields.  This commit
moves the new members toward the end of the structure so that the
layout of the portion that is relevant to JDK remains the same as
before.

I will work with the JDK porting team to see if we can come up with
a less fragile way for them to do what they need to do.  I understand
the current approach was necessary in order to work around some
limitations of the dynamic linker.  Maybe it's not necessary any
more.
1999-09-05 21:12:53 +00:00
John Polstra
0edd3ca778 Enable -Wformat checking for debug_printf(). 1999-09-04 20:36:27 +00:00
John Polstra
ed5e1b5537 Change the warning about unrecognized entries in the dynamic table
to a debug message which is disabled in production builds of the
dynamic linker.  The condition warned about is normally harmless.

PR:		bin/12849
1999-09-04 20:14:48 +00:00
John Polstra
476015a33b When looking up symbols, search the objects loaded at program start
up first -- before the dlopened DAGs containing the referencing
object.

This makes dynamically loaded perl modules work properly again.
1999-09-04 04:00:09 +00:00
John Polstra
a607e5d7f8 Get the actual pathname of the dynamic linker from the executable's
PT_INTERP program header entry, to ensure that gdb always finds
the right dynamic linker.

Use obj->relocbase to simplify a few calculations where appropriate.
1999-08-30 01:54:13 +00:00
John Polstra
7360ae0f2a When checking to see if a shared object is already loaded, look for
a device/inode match if no pathname match is found.
1999-08-30 01:50:41 +00:00
John Polstra
926ea445fe Revamp the symbol lookup algorithm to cope better with objects
loaded separately by dlopen that have global symbols with identical
names.  Viewing each dlopened object as a DAG which is linked by its
DT_NEEDED entries in the dynamic table, the search order is as
follows:

  * If the referencing object was linked with -Bsymbolic, search it
    internally.
  * Search all dlopened DAGs containing the referencing object.
  * Search all objects loaded at program start up.
  * Search all objects which were dlopened() using the RTLD_GLOBAL
    flag (which is now supported too).

The search terminates as soon as a strong definition is found.
Lacking that, the first weak definition is used.

These rules match those of Solaris, as best I could determine them
from its vague manual pages and the results of experiments I performed.

PR:		misc/12438
1999-08-30 01:48:19 +00:00
John Polstra
7326e0b620 When honoring -Bsymbolic, still keep searching if only a weak
definition was found in the referencing object.
1999-08-30 01:25:38 +00:00
John Polstra
6bd9374580 Simplify the logic in find_symdef(). 1999-08-30 01:24:08 +00:00
Mike Pritchard
229494cb51 Add $FreeBSD$ lines to man pages that are missing them to make it
easier for translation teams.

PR:		docs/13418
Submitted by:	Alexey Zelkin <phantom@cris.net>
1999-08-28 23:10:20 +00:00
Peter Wemm
7f3dea244c $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
Peter Wemm
1713064734 unifdef -DINTERNAL_LS - it's too useful to be off by default. If anyone
really dislikes this, we could add a switch to disable it at runtime and
check in popen.c.
1999-08-26 00:45:36 +00:00
Warner Losh
7d773433a7 Ufff. cflags -> chflags. I could have sworn this change has been in
my last three successful make buildworlds...

Noticed by: phk
1999-08-21 20:54:40 +00:00
Warner Losh
15621e0d76 Remove all flags from devices before we try to assert ownership and
set permissions.

Bug not fixed:
	We silently ignore failures of chflags, chmod and chown.
1999-08-21 18:15:55 +00:00
John Polstra
41f83b07a8 Add a NULL pointer check whose absence could cause segmentation
violations in certain obscure cases involving failed dlopens.  Many
thanks to Archie Cobbs for providing me with a good test case.

Eliminate a block that existed only to localize a declaration.
1999-08-20 22:33:44 +00:00
Jordan K. Hubbard
ef4aaceaa0 Back out previous commit - it's not necessary now that tty.h properly includes
the queue macros.
1999-08-09 07:51:03 +00:00
Brian Feldman
3452a15dcf Add a missing include (sys/queue.h for sys/tty.h SLIST usage.) 1999-08-09 02:19:38 +00:00
Gene Stark
ccc2025d3a Correction to previous commit. 1999-08-08 07:23:12 +00:00
Gene Stark
de44c0a11d Corrected mistake that was causing daemon to loop without serving
user requests.  Note that nothing can be said about the value of 'user'
unless User != NULL.
1999-08-08 07:05:46 +00:00
John Polstra
bfb1ef6058 Change many asserts into normal errors. They were all for conditions
caused by invalid shared objects rather than by internal errors.

Enable format string mismatch checking for _rtld_error().
1999-07-18 00:02:19 +00:00
John Polstra
cb435fa919 Change the symbol used to find the end of an object's address space
from "end" to "_end".  The former does not exist in most shared
libraries.  This fixes problems in dladdr() and dlsym(RTLD_NEXT, ...).
1999-07-14 04:09:11 +00:00
Mike Pritchard
2dd1e9f4e1 Fix a couple of typos.
PR:		12610
Submitted by:	Seth <seth@freebie.dp.ny.frb.org>
1999-07-12 18:37:48 +00:00
Doug Rabson
e85422ad1d Add code to 'handle' R_ALPHA_NONE relocations by ignoring them. 1999-07-12 07:54:45 +00:00
John Polstra
18cd0551a7 Add a MAINTAINER line naming myself. We control the vertical. We
control the horizontal.
1999-07-09 16:27:43 +00:00
John Polstra
8d05e8c453 Fix bug: if a dlopen() failed (e.g., because of undefined symbols),
the dynamic linker didn't clean up properly.  A subsequent dlopen()
of the same object would appear to succeed.

Another excellent fix from Max Khon.

PR:		bin/12471
Submitted by:	Max Khon <fjoe@iclub.nsu.ru>
1999-07-09 16:22:55 +00:00
John Polstra
5bf3700dae Shake hands with GDB a little bit earlier so that it is possible to
debug the init functions.

Submitted by:	dfr
1999-07-03 23:54:02 +00:00
Mike Pritchard
a206edcdb7 Update the SYNOPSIS to reflect that the -l option can be specified
more than once.

Pointed-out-by: sheldonh
1999-06-28 10:50:47 +00:00
John Polstra
d16ad2d055 Fix a reference counting problem when using dlopen(NULL, ...).
PR:		bin/12129
1999-06-25 04:50:06 +00:00
John Polstra
962fdc466a Fix a serious performance bug for large programs on the Alpha,
discovered by Hidetoshi Shimokawa.  Large programs need multiple
GOTs.  The lazy binding stub in the PLT can be reached from any of
these GOTs, but the dynamic linker only has enough information to
fix up the first GOT entry.  Thus calls through the other GOTs went
through the time-consuming lazy binding process on every call.

This fix rewrites the PLT entries themselves to bypass the lazy
binding.

Tested by Hidetoshi Shimokawa and Steve Price.

Reviewed by:	Doug Rabson <dfr@freebsd.org>
1999-06-25 02:53:59 +00:00
Peter Wemm
d050fd4212 Identify illegal switches, don't print them as '?' in the error.. 1999-05-18 05:51:09 +00:00
Bill Paul
f9d553adf5 Fix ypxfr so that it can be run from cron.
Patch submitted by: Dan Nelson <dnelson@emsphone.com>
1999-05-10 20:55:29 +00:00
Guy Helmer
e57c110bba Add missing -A option to SYNOPSIS.
PR:		docs/10771
1999-05-04 19:42:01 +00:00
Warner Losh
859663719d More egcs warning fixes:
o main returns int not void
	o use return 0 at end of main when needed
	o use braces to avoid potentially ambiguous else
	o don't default to type int (and also remove a useless register
	  modifier).

Reviewed by: obrien and chuckr
1999-04-25 22:23:38 +00:00
John Polstra
6d30b16752 Back out my change from 6 April PDT that added a new dlversion()
function.  It was an ill-considered feature.  It didn't solve the
problem I wanted it to solve.   And it added Yet Another Version
Number that would have to be maintained at every release point.
I'm nuking it now before anybody grows too fond of it.
1999-04-22 01:54:38 +00:00
John Polstra
5353bfc3b4 After relocating the main program, but before calling any of the
_init() functions, initialize the global variables "__progname" and
"environ".  This makes it possible for the _init() functions to call
things like getenv() and err().
1999-04-21 04:06:57 +00:00
John Polstra
a18cde535d The ELF specification says that the RPATH in the executable or
shared object takes precedence over LD_LIBRARY_PATH.  Make the
dynamic linker do it that way.
1999-04-09 06:42:00 +00:00
John Polstra
d5b537d01a Eliminate all machine-dependent code from the main source body and
the Makefile, and move it down into the architecture-specific
subdirectories.

Eliminate an asm() statement for the i386.

Make the dynamic linker work if it is built as an executable instead
of as a shared library.  See i386/Makefile.inc to find out how to
do it.  Note, this change is not enabled and it might never be
enabled.  But it might be useful in the future.  Building the
dynamic linker as an executable should make it start up faster,
because it won't have any relocations.  But in practice I suspect
the difference is negligible.
1999-04-09 00:28:43 +00:00
Brian Somers
d5cf830ef1 Determine the host name using an array size of
MAXHOSTNAMELEN and call trimdomain() before implementing
the -u option.

This allows local hosts of a lan with a long domain name to
appear properly in utmp by base host name (w/o domain) rather
than by IP number.
1999-04-08 21:36:27 +00:00
Brian Somers
aae211bc7e Really fix -u.... 1999-04-07 08:39:54 +00:00
Brian Somers
9e9a43bdec Ensure that things returned by gethostname() and
friends are terminated and allow for a maximum
host name length of MAXHOSTNAMELEN - 1.
Put parenthesis around sizeof args.
Make some variables static.
Fix telnetd -u (broken by my last commit)

Prompted by: bde
1999-04-07 08:27:45 +00:00
Brian Somers
d9dc7d5c7e Fix the size of rhost, don't forget to NUL terminate
it and use brackets for sizeof.
Requested by: bde
1999-04-07 06:00:22 +00:00
John Polstra
a16ed197f2 Fix a couple of typos in comments. 1999-04-07 02:48:43 +00:00
John Polstra
14f5fa0596 Add a new function dlversion() which returns the version number of
the dynamic linker in the same form as __FreeBSD_version.  This is
mainly intended for checking the dynamic linker version during a make
world.
1999-04-07 02:43:11 +00:00
Brian Somers
143b4dcdc7 Link with libutil 1999-04-06 23:40:25 +00:00
Brian Somers
32af26a501 Use realhostname() rather than various combinations of
gethostbyaddr() & gethostbyname().

Remove brokeness in ftpd for hosts of MAXHOSTNAMELEN length.
1999-04-06 23:06:00 +00:00
Brian Somers
51d8a6713f After receiving a connection and doing a reverse
lookup on the incoming IP, do a forward lookup on
the result and make sure that the IP is in the
resulting list.  If it's not, put the IP number
in utmp/wtmp instead of the rogue name.

Stolen from: rlogind
Suggested by: sef
1999-04-06 00:29:41 +00:00
John Polstra
5e4636f2b0 Resolve undefined weak references to a value of 0. This solves the
"__deregister_frame_info" problem that was seen when combining a
program linked using the old gcc with shared libraries that were
built using egcs.
1999-04-05 02:36:40 +00:00