mirror of
https://github.com/FeralInteractive/gamemode.git
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73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
/*
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Copyright (c) 2017, Feral Interactive
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of Feral Interactive nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "daemonize.h"
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#include "logging.h"
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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// function to daemonize the process
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void daemonize(char *name)
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{
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// Fork once
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pid_t pid = fork();
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if (pid < 0) {
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FATAL_ERRORNO("Failed to fork");
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}
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if (pid != 0) {
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LOG_MSG("Daemon launched...\n");
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exit(EXIT_SUCCESS);
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}
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// Fork a second time
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pid = fork();
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if (pid < 0) {
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FATAL_ERRORNO("Failed to fork");
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} else if (pid > 0) {
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exit(EXIT_SUCCESS);
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}
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// Continue to set up as a daemon
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umask(0);
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if (setsid() < 0) {
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FATAL_ERRORNO("Failed to create process group\n");
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}
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if (chdir("/") < 0) {
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FATAL_ERRORNO("Failed to change to root directory\n");
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}
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close(STDIN_FILENO);
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close(STDOUT_FILENO);
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close(STDERR_FILENO);
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}
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