launchd/testing/mach_via_launchd.c

   1 #include <launch.h>
   2 #include <unistd.h>
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <string.h>
   6 #include <errno.h>
   7
   8 void print_mach_service(launch_data_t obj, const char *key, void *context)
   9 {
  10         if (launch_data_get_type(obj) == LAUNCH_DATA_MACHPORT) {
  11                 fprintf(stdout, "%s: %d\n", key, launch_data_get_machport(obj));
  12                 mach_port_deallocate(mach_task_self(), launch_data_get_machport(obj));
  13                 mach_port_mod_refs(mach_task_self(), launch_data_get_machport(obj), MACH_PORT_RIGHT_RECEIVE, -1);
  14         } else {
  15                 fprintf(stdout, "%s: not a mach port\n", key);
  16         }
  17 }
  18
  19 int main(void)
  20 {
  21         launch_data_t resp, tmp, msg = launch_data_new_string(LAUNCH_KEY_CHECKIN);
  22
  23         resp = launch_msg(msg);
  24
  25         if (resp == NULL) {
  26                 fprintf(stderr, "launch_msg(): %s\n", strerror(errno));
  27                 exit(EXIT_FAILURE);
  28         }
  29
  30         if (launch_data_get_type(resp) == LAUNCH_DATA_ERRNO) {
  31                 errno = launch_data_get_errno(resp);
  32                 fprintf(stderr, "launch_msg() response: %s\n", strerror(errno));
  33                 exit(EXIT_FAILURE);
  34         }
  35
  36         tmp = launch_data_dict_lookup(resp, LAUNCH_JOBKEY_MACHSERVICES);
  37
  38         if (tmp == NULL) {
  39                 fprintf(stderr, "no mach services found!\n");
  40                 exit(EXIT_FAILURE);
  41         }
  42
  43         launch_data_dict_iterate(tmp, print_mach_service, NULL);
  44
  45         sleep(1);
  46         exit(EXIT_SUCCESS);
  47 }