tryposixspawnchdir.c (612B)
1 /* ISC license. */ 2 3 #undef _POSIX_C_SOURCE 4 #undef _XOPEN_SOURCE 5 6 #ifndef _XPG4_2 7 #define _XPG4_2 8 #endif 9 10 #ifndef _GNU_SOURCE 11 #define _GNU_SOURCE 12 #endif 13 14 #ifndef _DEFAULT_SOURCE 15 #define _DEFAULT_SOURCE 16 #endif 17 18 #include <spawn.h> 19 20 int main (void) 21 { 22 pid_t pid ; 23 posix_spawn_file_actions_t actions ; 24 posix_spawnattr_t attr ; 25 char *const argv[2] = { "/bin/true", 0 } ; 26 char *const envp[1] = { 0 } ; 27 posix_spawn_file_actions_init(&actions) ; 28 posix_spawn_file_actions_addchdir(&actions, "/") ; 29 posix_spawn_file_actions_addfchdir(&actions, -1) ; 30 return posix_spawn(&pid, argv[0], 0, 0, argv, envp) ; 31 }