components/user.c

   1 /* See LICENSE file for copyright and license details. */
   2 #include <pwd.h>
   3 #include <stdio.h>
   4 #include <sys/types.h>
   5 #include <unistd.h>
   6
   7 #include "../util.h"
   8
   9 const char *
  10 gid(void)
  11 {
  12         return bprintf("%d", getgid());
  13 }
  14
  15 const char *
  16 username(void)
  17 {
  18         struct passwd *pw = getpwuid(geteuid());
  19
  20         if (pw == NULL) {
  21                 fprintf(stderr, "Failed to get username");
  22                 return NULL;
  23         }
  24
  25         return bprintf("%s", pw->pw_name);
  26 }
  27
  28 const char *
  29 uid(void)
  30 {
  31         return bprintf("%d", geteuid());
  32 }