4.3BSD - /usr/src/ucb/whoami.c

   1: /*
   2:  * Copyright (c) 1980 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  */
   6: 
   7: #ifndef lint
   8: char copyright[] =
   9: "@(#) Copyright (c) 1980 Regents of the University of California.\n\
  10:  All rights reserved.\n";
  11: #endif not lint
  12: 
  13: #ifndef lint
  14: static char sccsid[] = "@(#)whoami.c	5.1 (Berkeley) 5/31/85";
  15: #endif not lint
  16: 
  17: #include <pwd.h>
  18: /*
  19:  * whoami
  20:  */
  21: struct  passwd *getpwuid();
  22: 
  23: main()
  24: {
  25:     register struct passwd *pp;
  26: 
  27:     pp = getpwuid(geteuid());
  28:     if (pp == 0) {
  29:         printf("Intruder alert.\n");
  30:         exit(1);
  31:     }
  32:     printf("%s\n", pp->pw_name);
  33:     exit(0);
  34: }

Defined functions

Defined variables