usr/src/ucbcmd/whoami/whoami.c

   1 /*
   2  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
   3  * Use is subject to license terms.
   4  */
   5
   6 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
   7 /*        All Rights Reserved   */
   8
   9 /*
  10  * Copyright (c) 1980 Regents of the University of California.
  11  * All rights reserved.  The Berkeley software License Agreement
  12  * specifies the terms and conditions for redistribution.
  13  */
  14
  15 #pragma ident   "%Z%%M% %I%     %E% SMI"
  16
  17 #include <unistd.h>
  18 #include <sys/types.h>
  19 #include <pwd.h>
  20 #include <locale.h>
  21 #include <stdlib.h>
  22
  23 #define MSG     "whoami: no login associated with uid %u.\n"
  24
  25 /*
  26  * whoami
  27  */
  28
  29 int
  30 main(int argc, char *argv[])
  31 /*ARGSUSED*/
  32 {
  33         struct passwd *pp;
  34         uid_t   euid;
  35
  36         /* Set locale environment variables local definitions */
  37         (void) setlocale(LC_ALL, "");
  38 #if     !defined(TEXT_DOMAIN)   /* Should be defined by cc -D */
  39 #define TEXT_DOMAIN "SYS_TEST"  /* Use this only if it wasn't */
  40 #endif
  41         (void) textdomain(TEXT_DOMAIN);
  42
  43         euid = geteuid();
  44         pp = getpwuid(euid);
  45         if (pp == 0) {
  46                 (void) printf(gettext(MSG), euid);
  47                 exit(1);
  48         }
  49         (void) printf("%s\n", pp->pw_name);
  50         return (0);
  51 }