mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-11 07:40:05 +00:00
421f82e5cc
* Makeconfig (+gccwarn): Add -Winline. * hurd/hurdsig.c (_hurd_internal_post_signal): If SS->context is set, avoid abort_rpcs, and use reply and intr ports saved in SS->context. * sysdeps/mach/hurd/i386/trampoline.c: Don't set SS->intr_port from SS->context. Don't clear SS->context. * sysdeps/mach/hurd/i386/sigreturn.c: Don't set SS->intr_port when setting SS->context. If msg_sig_post returns, re-lock and clear SS->context. Fri May 5 10:37:09 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> * mach/Makefile (errsystems.c): Comment out generation rule. * sysdeps/mach/_strerror.c: Consider a system unknown if its bad_sub member is null. * mach/mig-alloc.c: Add weak alias to non-__ name.
72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
/* dlerror -- Return error detail for failing <dlfcn.h> functions.
|
|
Copyright (C) 1995 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 of the
|
|
License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If
|
|
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
|
Cambridge, MA 02139, USA. */
|
|
|
|
#include <link.h>
|
|
#include <dlfcn.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
static int last_errcode;
|
|
static const char *last_errstring;
|
|
static const char *last_object_name;
|
|
|
|
char *
|
|
dlerror (void)
|
|
{
|
|
static char *buf;
|
|
char *ret;
|
|
|
|
if (buf)
|
|
{
|
|
free (buf);
|
|
buf = NULL;
|
|
}
|
|
|
|
if (! last_errstring)
|
|
return NULL;
|
|
|
|
if (last_errcode == 0 && ! last_object_name)
|
|
ret = (char *) last_errstring;
|
|
else if (last_errcode == 0)
|
|
ret = (asprintf (&buf, "%s: %s", last_object_name, last_errstring) == -1
|
|
? NULL : buf);
|
|
else if (! last_object_name)
|
|
ret = (asprintf (&buf, "%s: %s",
|
|
last_errstring, strerror (last_errcode)) == -1
|
|
? NULL : buf);
|
|
else
|
|
ret = (asprintf (&buf, "%s: %s: %s",
|
|
last_object_name, last_errstring,
|
|
strerror (last_errcode)) == -1
|
|
? NULL : buf);
|
|
|
|
/* Reset the error indicator. */
|
|
last_errstring = NULL;
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
_dlerror_run (void (*operate) (void))
|
|
{
|
|
last_errcode = _dl_catch_error (&last_errstring, &last_object_name,
|
|
operate);
|
|
return last_errstring != NULL;
|
|
}
|