commands/simple/whoami.c

   1 /* whoami - print the current user name         Author: Terrence W. Holm */
   2
   3 #include <sys/types.h>
   4 #include <pwd.h>
   5 #include <stdlib.h>
   6 #include <unistd.h>
   7 #include <stdio.h>
   8
   9 _PROTOTYPE(int main, (void));
  10
  11 int main()
  12 {
  13   struct passwd *pw_entry;
  14
  15   pw_entry = getpwuid(geteuid());
  16   if (pw_entry == NULL) exit(1);
  17   puts(pw_entry->pw_name);
  18   return(0);
  19 }