List the mach services on your computer, or at least all the ones up the default bootstrap chain!

mach_list_services.c

#include <stdio.h>
#include <mach/mach.h>
#include <bootstrap_priv.h>
#include <stdlib.h>

void error(int a, int r, const char *str) {
  const char *err = bootstrap_strerror(r);
  fprintf(stderr, "%s (%#02x) %s\n", str, r, err);
  exit(a);
}

void list_services(mach_port_t bp) {
  mach_port_array_t children = NULL;
  name_array_t names = NULL;
  bootstrap_property_array_t props = NULL;
  mach_msg_type_number_t nchild = 0;
  int i = 0;
  int ret = bootstrap_lookup_children(bp, &children, &names, &props, &nchild);
  if (ret && ret != BOOTSTRAP_NO_CHILDREN)
    error(1,ret,"bootstrap_lookup_children");
  printf("Got %d children!\n", nchild);
  for (i = 0; i < nchild; i++) {
    printf("Found service: %s\n", names[i]);
  }
}

int main(int argc, const char *argv[]) {
  mach_port_t bp = bootstrap_port, tmp = MACH_PORT_NULL;
  while (bp != tmp) {
    if (tmp)
      puts("Looking at parent");
    list_services(bp);
    tmp = bp;
    bootstrap_parent(bp, &bp);
  }
  return 0;
}