mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-27 03:41:23 +08:00
2e47aff5ac
* posix/wordexp.c (do_parse_glob): Likewise. * sysdeps/posix/sigblock.c (__sigblock): Likewise. * sysdeps/posix/sigsetmask.c (__sigsetmask): Likewise. * elf/dl-open.c (_dl_open): Likewise. * elf/dl-close.c (_dl_close): Likewise. * elf/dl-load.c (_dl_map_object): Likewise. * iconv/iconv_prog.c (process_fd): Likewise.
58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
/* Copyright (C) 1991, 94, 95, 96, 97, 98, 2001 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., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <errno.h>
|
|
#include <signal.h>
|
|
|
|
/* Block signals in MASK, returning the old mask. */
|
|
int
|
|
__sigblock (mask)
|
|
int mask;
|
|
{
|
|
register unsigned int sig;
|
|
sigset_t set, oset;
|
|
|
|
if (__sigemptyset (&set) < 0)
|
|
return -1;
|
|
|
|
if (sizeof (mask) == sizeof (set))
|
|
*(int *) &set = mask;
|
|
else if (sizeof (unsigned long int) == sizeof (set))
|
|
*(unsigned long int *) &set = (unsigned int) mask;
|
|
else
|
|
for (sig = 1; sig < NSIG && sig <= sizeof (mask) * 8; ++sig)
|
|
if ((mask & sigmask (sig)) && __sigaddset (&set, sig) < 0)
|
|
return -1;
|
|
|
|
if (__sigprocmask (SIG_BLOCK, &set, &oset) < 0)
|
|
return -1;
|
|
|
|
if (sizeof (mask) == sizeof (oset))
|
|
mask = *(int *) &oset;
|
|
else if (sizeof (unsigned long int) == sizeof (oset))
|
|
mask = *(unsigned long int*) &oset;
|
|
else
|
|
for (sig = 1, mask = 0; sig < NSIG && sig <= sizeof (mask) * 8; ++sig)
|
|
if (__sigismember (&oset, sig))
|
|
mask |= sigmask (sig);
|
|
|
|
return mask;
|
|
}
|
|
|
|
weak_alias (__sigblock, sigblock)
|