mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-28 07:45:00 +00:00
41 lines
766 B
C
41 lines
766 B
C
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
|
|
#include <signal.h>
|
|
#include <errno.h>
|
|
|
|
int
|
|
sigaction(int _sig, const struct sigaction *_act, struct sigaction *_oact)
|
|
{
|
|
int retval = 0;
|
|
|
|
if (_oact)
|
|
{
|
|
void (*installed_sig)(int) = signal (_sig, SIG_IGN);
|
|
|
|
/* FIXME */
|
|
if (installed_sig == SIG_ERR)
|
|
{
|
|
retval = -1;
|
|
errno = EINVAL;
|
|
}
|
|
else
|
|
signal (_sig, installed_sig);
|
|
_oact->sa_handler = installed_sig;
|
|
retval = sigemptyset (&_oact->sa_mask);
|
|
_oact->sa_flags = 0;
|
|
}
|
|
if (_act)
|
|
{
|
|
if (signal (_sig, _act->sa_handler) == SIG_ERR)
|
|
{
|
|
retval = -1;
|
|
errno = EINVAL;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
/* arch-tag: 39526405-3d3a-44fe-af28-82a515e0c8e8
|
|
(do not change this comment) */
|