50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
#include "daemonize.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <unistd.h>
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#include <syslog.h>
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#include <string.h>
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#include <iostream>
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namespace cpputils {
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//TODO Test daemonize()
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void daemonize() {
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pid_t pid = fork();
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if (pid < 0) {
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exit(EXIT_FAILURE);
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}
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if (pid > 0) {
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//We're the parent process. Exit.
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exit(EXIT_SUCCESS);
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}
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// We're the child process.
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umask(0);
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// Create a new SID for the child process
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pid_t sid = setsid();
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if (sid < 0) {
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std::cerr << "Failed to get SID for daemon process" << std::endl;
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exit(EXIT_FAILURE);
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}
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// Change the current working directory to a directory that's always existin
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if ((chdir("/")) < 0) {
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std::cerr << "Failed to change working directory for daemon process" << std::endl;
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exit(EXIT_FAILURE);
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}
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// Close out the standard file descriptors. The daemon can't use them anyhow.
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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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}
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