mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-27 04:41:02 +08:00
41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/* Copyright (C) 1991, 1995, 1996, 1997 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 Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <sysdep.h>
|
|
#include <errno.h>
|
|
#include <stddef.h>
|
|
#include <signal.h>
|
|
|
|
|
|
/* If ACT is not NULL, change the action for SIG to *ACT.
|
|
If OACT is not NULL, put the old action for SIG in *OACT. */
|
|
int
|
|
__sigaction (sig, act, oact)
|
|
int sig;
|
|
const struct sigaction *act;
|
|
struct sigaction *oact;
|
|
{
|
|
struct sigvec vec, ovec;
|
|
|
|
if (sig <= 0 || sig >= NSIG)
|
|
{
|
|
__set_errno (EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
if (act != NULL)
|
|
{
|
|
vec.sv_mask = act->sa_mask;
|
|
vec.sv_handler = act->sa_handler;
|
|
vec.sv_flags = (((act->sa_flags & SA_ONSTACK) ? SV_ONSTACK : 0) |
|
|
(!(act->sa_flags & SA_RESTART) ? SV_INTERRUPT : 0));
|
|
}
|
|
|
|
if (__sigvec(sig, act != NULL ? &vec : (struct sigvec *) NULL, &ovec) < 0)
|
|
return -1;
|
|
|
|
if (oact != NULL)
|
|
{
|
|
oact->sa_handler = (void (*) __P ((int))) ovec.sv_handler;
|
|
oact->sa_mask = ovec.sv_mask;
|
|
oact->sa_flags = (((ovec.sv_flags & SV_ONSTACK) ? SA_ONSTACK : 0) |
|
|
(!(ovec.sv_flags & SV_INTERRUPT) ? SA_RESTART : 0));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
weak_alias (__sigaction, sigaction)
|