1 #include <signal.h> 2 #include <stdio.h> 3 #include <stdlib.h> 4 #include <unistd.h> 5 6 int nohup_main(int argc, char *argv[]) 7 { 8 if (argc < 2) { 9 fprintf(stderr, "Usage: %s [-n] program args...\n", argv[0]); 10 return EXIT_FAILURE; 11 } 12 signal(SIGHUP, SIG_IGN); 13 argv++; 14 if (strcmp(argv[0], "-n") == 0) { 15 argv++; 16 signal(SIGINT, SIG_IGN); 17 signal(SIGSTOP, SIG_IGN); 18 signal(SIGTTIN, SIG_IGN); 19 signal(SIGTTOU, SIG_IGN); 20 signal(SIGQUIT, SIG_IGN); 21 signal(SIGTERM, SIG_IGN); 22 } 23 execvp(argv[0], argv); 24 perror(argv[0]); 25 return EXIT_FAILURE; 26 } 27
