mirror of
https://github.com/pygos/init.git
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96 lines
2 KiB
C
96 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-3.0-or-later */
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/*
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* Copyright (C) 2018 - David Oberhollenzer
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "runsvc.h"
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static int runlst_wait(exec_t *list)
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{
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pid_t ret, pid;
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int status;
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for (; list != NULL; list = list->next) {
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pid = fork();
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if (pid == 0)
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argv_exec(list);
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if (pid == -1) {
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perror("fork");
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return EXIT_FAILURE;
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}
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do {
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ret = waitpid(pid, &status, 0);
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} while (ret != pid);
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if (!WIFEXITED(status))
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return EXIT_FAILURE;
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if (WEXITSTATUS(status) != EXIT_SUCCESS)
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return WEXITSTATUS(status);
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}
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return EXIT_SUCCESS;
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}
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/*****************************************************************************/
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int main(int argc, char **argv)
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{
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int dirfd, ret = EXIT_FAILURE;
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service_t *svc = NULL;
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if (argc != 3) {
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fputs("usage: runsvc <directory> <filename>\n", stderr);
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goto out;
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}
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if (getppid() != 1) {
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fputs("must be run by init!\n", stderr);
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goto out;
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}
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dirfd = open(argv[1], O_RDONLY | O_DIRECTORY);
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if (dirfd < 0) {
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perror(argv[1]);
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goto out;
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}
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svc = rdsvc(dirfd, argv[2], RDSVC_NO_FNAME | RDSVC_NO_DEPS);
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close(dirfd);
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if (svc == NULL)
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goto out;
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if (svc->exec == NULL) {
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ret = EXIT_SUCCESS;
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goto out;
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}
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if (initenv())
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goto out;
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if (setup_tty(svc->ctty, (svc->flags & SVC_FLAG_TRUNCATE_OUT) != 0))
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goto out;
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if (svc->exec->next == NULL)
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argv_exec(svc->exec);
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ret = runlst_wait(svc->exec);
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out:
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delsvc(svc);
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return ret;
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}
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