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/*
libfakechroot -- fake chroot environment
Copyright (c) 2010-2015 Piotr Roszatycki <dexter@debian.org>
This 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.
This 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 this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <config.h>
#ifdef __GNUC__
#define _BSD_SOURCE
#define _POSIX_SOURCE
#define _DEFAULT_SOURCE
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <signal.h>
#include "libfakechroot.h"
/* #include <sys/types.h> */
/* #include <stdlib.h> */
/* #include <unistd.h> */
/* #include <sys/wait.h> */
wrapper(system, int, (const char * command))
{
pid_t pid;
int pstat;
sigset_t mask, omask;
struct sigaction new_action_ign, old_action_int, old_action_quit;
debug("system(\"%s\")", command);
if (command == 0)
return 1;
sigemptyset(&mask);
sigaddset(&mask, SIGCHLD);
sigprocmask(SIG_BLOCK, &mask, &omask);
if ((pid = vfork()) < 0) {
sigprocmask(SIG_SETMASK, &omask, NULL);
return -1;
}
if (pid == 0) {
sigprocmask(SIG_SETMASK, &omask, NULL);
execl("/bin/sh", "sh", "-c", command, (char *) 0);
_exit(127);
}
new_action_ign.sa_handler = SIG_IGN;
sigemptyset(&new_action_ign.sa_mask);
new_action_ign.sa_flags = 0;
sigaction(SIGINT, &new_action_ign, &old_action_int);
sigaction(SIGQUIT, &new_action_ign, &old_action_quit);
pid = waitpid(pid, (int *)&pstat, 0);
sigprocmask(SIG_SETMASK, &omask, NULL);
sigaction(SIGINT, &old_action_int, NULL);
sigaction(SIGQUIT, &old_action_quit, NULL);
return (pid == -1 ? -1 : pstat);
}
#else
typedef int empty_translation_unit;
#endif
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