mirror of
https://github.com/pygos/init.git
synced 2024-06-13 07:28:43 +02:00
88 lines
1.9 KiB
C
88 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-3.0-or-later */
|
|
/*
|
|
* Copyright (C) 2018 - David Oberhollenzer
|
|
*
|
|
* This program 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 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
#include "gcrond.h"
|
|
|
|
int runjob(crontab_t *tab)
|
|
{
|
|
struct sigaction act;
|
|
pid_t pid;
|
|
exec_t *e;
|
|
int ret;
|
|
|
|
if (tab->exec == NULL)
|
|
return 0;
|
|
|
|
pid = fork();
|
|
if (pid == -1) {
|
|
perror("fork");
|
|
return -1;
|
|
}
|
|
|
|
if (pid != 0) {
|
|
tab->pid = pid;
|
|
return 0;
|
|
}
|
|
|
|
/* XXX: inside the child process */
|
|
memset(&act, 0, sizeof(act));
|
|
act.sa_handler = SIG_DFL;
|
|
sigaction(SIGINT, &act, NULL);
|
|
sigaction(SIGTERM, &act, NULL);
|
|
sigaction(SIGHUP, &act, NULL);
|
|
|
|
if (setup_tty(tab->ctty, tab->tty_truncate))
|
|
exit(EXIT_FAILURE);
|
|
|
|
if (tab->gid != 0) {
|
|
if (setresgid(tab->gid, tab->gid, tab->gid)) {
|
|
perror("setgid");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
if (tab->uid != 0) {
|
|
if (setresuid(tab->uid, tab->uid, tab->uid)) {
|
|
perror("setuid");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
if (tab->exec->next == NULL)
|
|
argv_exec(tab->exec);
|
|
|
|
for (e = tab->exec; e != NULL; e = e->next) {
|
|
pid = fork();
|
|
if (pid == -1) {
|
|
perror("fork");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
if (pid == 0)
|
|
argv_exec(e);
|
|
|
|
while (waitpid(pid, &ret, 0) != pid)
|
|
;
|
|
|
|
ret = WIFEXITED(ret) ? WEXITSTATUS(ret) : EXIT_FAILURE;
|
|
if (ret != EXIT_SUCCESS)
|
|
break;
|
|
}
|
|
|
|
exit(ret);
|
|
}
|