Daemonise.c
From Organic Design wiki
int peerdInit() {
errno = 0;
// Fork so parent can exit and return control to what invoked it pid_t pid = fork(); if (pid > 0) exit(EXIT_SUCCESS); if (pid < 0) exit(logErr("First fork() failed!"));
// Become a new session leader with no controlling term if (setsid() < 0) exit(logErr("setsid() failed!"));
// Fork again to be a non-session-leader which can't gain a controlling term pid = fork(); if (pid > 0) exit(EXIT_SUCCESS); if (pid < 0) exit(logErr("Second fork() failed!"));
// Should be /home/lc(peer) chdir("/home/peerd");
// Don't inherit any file perms mask umask(0);
//close(STDIN_FILENO); //close(STDOUT_FILENO); //close(STDERR_FILENO);
return errno; }