lib/libminlib/getnucred.c

   1 #include <lib.h>
   2 #include <errno.h>
   3 #include <sys/ucred.h>
   4 #include <unistd.h>
   5
   6 int getnucred(endpoint_t proc_ep, struct ucred *ucred)
   7 {
   8   message m;
   9   pid_t pid;
  10
  11   if (ucred == NULL) {
  12     errno = EFAULT;
  13     return -1;
  14   }
  15
  16   m.m1_i1 = proc_ep;            /* search for this process */
  17
  18   pid = _syscall(PM_PROC_NR, GETEPINFO, &m);
  19   if (pid < 0) {
  20      return -1;
  21   }
  22
  23   ucred->pid = pid;
  24   ucred->uid = m.PM_NUID;
  25   ucred->gid = m.PM_NGID;
  26
  27   return 0;
  28 }