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/*
* libdpkg - Debian packaging suite library routines
* subproc.c - subprocess helper routines
*
* Copyright (C) 1995 Ian Jackson <ian@chiark.greenend.org.uk>
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2,
* or (at your option) any later version.
*
* This 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with dpkg; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <config.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <signal.h>
#include <dpkg.h>
#include <dpkg-priv.h>
static int catch_signals[] = { SIGQUIT, SIGINT };
static struct sigaction uncatch_signals[sizeof_array(catch_signals)];
void
setup_subproc_signals(const char *name)
{
size_t i;
struct sigaction catchsig;
onerr_abort++;
memset(&catchsig, 0, sizeof(catchsig));
catchsig.sa_handler = SIG_IGN;
sigemptyset(&catchsig.sa_mask);
catchsig.sa_flags = 0;
for (i = 0; i < sizeof_array(catch_signals); i++)
if (sigaction(catch_signals[i], &catchsig, &uncatch_signals[i]))
ohshite(_("unable to ignore signal %s before running %.250s"),
strsignal(catch_signals[i]), name);
push_cleanup(cu_subproc_signals, ~0, NULL, 0, 0);
onerr_abort--;
}
void
cu_subproc_signals(int argc, void **argv)
{
size_t i;
for (i = 0; i < sizeof_array(catch_signals); i++) {
if (sigaction(catch_signals[i], &uncatch_signals[i], NULL)) {
fprintf(stderr, _("error un-catching signal %s: %s\n"),
strsignal(catch_signals[i]), strerror(errno));
onerr_abort++;
}
}
}
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