1 #include <unistd.h> 2 #include <spawn.h> 3 #include <sys/wait.h> 4 5 #define SUBSYSTEM_ROOT_PATH_KEY "subsystem_root_path" 6 7 #define HELPER_BEHAVIOR_NOT_SET "not_set" 8 #define HELPER_BEHAVIOR_SET "set" 9 #define HELPER_BEHAVIOR_FORK_EXEC "fork_exec" 10 #define HELPER_BEHAVIOR_SPAWN "spawn" 11 12 static int _spawn_and_wait(char ** args,posix_spawnattr_t * attr)13_spawn_and_wait(char ** args, posix_spawnattr_t *attr) 14 { 15 int pid; 16 int status; 17 18 if (posix_spawn(&pid, args[0], NULL, attr, args, NULL)) { 19 return -1; 20 } 21 if (waitpid(pid, &status, 0) < 0) { 22 return -1; 23 } 24 25 if (WIFEXITED(status) && (WEXITSTATUS(status) == 0)) { 26 return 0; 27 } 28 29 return -1; 30 } 31