4aebaa6bd9
* argp/argp-help.c: Unify use of function aliases to make more compact PLT. * include/libintl.h: Likewise. * inet/rcmd.c: Likewise. * intl/dcigettext.c: Likewise. * libio/iofputws.c: Likewise. * libio/iofputws_u.c: Likewise. * libio/iogetwline.c: Likewise. * libio/swprintf.c: Likewise. * malloc/malloc.c: Likewise. * nss/digits_dots.c: Likewise. * posix/fnmatch.c: Likewise. * posix/spawn_faction_addclose.c: Likewise. * posix/spawn_faction_adddup2.c: Likewise. * posix/spawn_faction_addopen.c: Likewise. * posix/spawni.c: Likewise. * posix/wordexp.c: Likewise. * posix/spawni.c: Likewise. * resolv/res_hconf.c: Likewise. * resolv/res_init.c: Likewise. * shadow/lckpwdf.c: Likewise. * signal/sighold.c: Likewise. * signal/sigrelse.c: Likewise. * stdio-common/printf-parse.h: Likewise. * stdio-common/printf-prs.c: Likewise. * stdio-common/printf_fp.c: Likewise. * stdio-common/vfprintf.c: Likewise. * stdio-common/vfscanf.c: Likewise. * stdlib/rpmatch.c: Likewise. * sunrpc/create_xid.c: Likewise. * sunrpc/key_call.c: Likewise. * sysdeps/generic/setrlimit64.c: Likewise. * sysdeps/generic/utmp_file.c: Likewise. * sysdeps/generic/vlimit.c: Likewise. * sysdeps/posix/posix_fallocate.c: Likewise. * sysdeps/posix/posix_fallocate64.c: Likewise. * sysdeps/posix/sigpause.c: Likewise. * sysdeps/posix/sigset.c: Likewise. * sysdeps/unix/grantpt.c: Likewise. * sysdeps/unix/bsd/ualarm.c: Likewise. * sysdeps/unix/sysv/linux/dl-origin.c: Likewise. * sysdeps/unix/sysv/linux/getloadavg.c: Likewise. * sysdeps/unix/sysv/linux/ttyname.c: Likewise. * sysdeps/unix/sysv/linux/ulimit.c: Likewise. * time/strftime.c: Likewise. * wcsmbs/wcscoll.c: Likewise. * wcsmbs/wcsxfrm.c: Likewise. * sysdeps/powerpc/fpu_control.h (_FPU_GETCW): Allow gcc to generate postinc/predec instruction.
82 lines
2.2 KiB
C
82 lines
2.2 KiB
C
/* Copyright (C) 1998, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <errno.h>
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#define __need_NULL
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#include <stddef.h>
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#include <signal.h>
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/* Set the disposition for SIG. */
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__sighandler_t
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sigset (sig, disp)
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int sig;
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__sighandler_t disp;
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{
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struct sigaction act, oact;
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sigset_t set;
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#ifdef SIG_HOLD
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/* Handle SIG_HOLD first. */
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if (disp == SIG_HOLD)
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{
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/* Create an empty signal set. */
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if (__sigemptyset (&set) < 0)
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return SIG_ERR;
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/* Add the specified signal. */
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if (__sigaddset (&set, sig) < 0)
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return SIG_ERR;
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/* Add the signal set to the current signal mask. */
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if (__sigprocmask (SIG_BLOCK, &set, NULL) < 0)
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return SIG_ERR;
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return SIG_HOLD;
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}
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#endif /* SIG_HOLD */
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/* Check signal extents to protect __sigismember. */
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if (disp == SIG_ERR || sig < 1 || sig >= NSIG)
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{
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__set_errno (EINVAL);
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return SIG_ERR;
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}
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act.sa_handler = disp;
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if (__sigemptyset (&act.sa_mask) < 0)
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return SIG_ERR;
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act.sa_flags = 0;
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if (__sigaction (sig, &act, &oact) < 0)
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return SIG_ERR;
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/* Create an empty signal set. */
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if (__sigemptyset (&set) < 0)
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return SIG_ERR;
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/* Add the specified signal. */
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if (__sigaddset (&set, sig) < 0)
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return SIG_ERR;
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/* Remove the signal set from the current signal mask. */
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if (__sigprocmask (SIG_UNBLOCK, &set, NULL) < 0)
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return SIG_ERR;
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return oact.sa_handler;
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}
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