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- /*
- *
- * Copyright (c) 2019, Ali Rıza Keskin
- *
- * Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use, copy,
- * modify, merge, publish, distribute, sublicense, and/or sell copies
- * of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- */
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <unistd.h>
- #include <signal.h>
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <syslog.h>
- static void skeleton_daemon()
- {
- pid_t pid;
- /* Fork off the parent process */
- pid = fork();
- /* An error occurred */
- if (pid < 0)
- exit(EXIT_FAILURE);
- /* Success: Let the parent terminate */
- if (pid > 0)
- exit(EXIT_SUCCESS);
- /* On success: The child process becomes session leader */
- if (setsid() < 0)
- exit(EXIT_FAILURE);
- /* Catch, ignore and handle signals */
- //TODO: Implement a working signal handler */
- signal(SIGCHLD, SIG_IGN);
- signal(SIGHUP, SIG_IGN);
- /* Fork off for the second time*/
- pid = fork();
- /* An error occurred */
- if (pid < 0)
- exit(EXIT_FAILURE);
- /* Success: Let the parent terminate */
- if (pid > 0)
- exit(EXIT_SUCCESS);
- /* Set new file permissions */
- umask(0);
- /* Open the log file */
- openlog ("scom-daemon", LOG_PID, LOG_DAEMON);
- }
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