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/* whoami -- print effective userid
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Equivalent to `id -un'. */
/* Written by Richard Mlynarik. */
#include <stdio.h>
#include <sys/types.h>
#include <pwd.h>
#include "system.h"
void
main (argc, argv)
int argc;
char *argv[];
{
register struct passwd *pw;
register uid_t uid;
if (argc != 1)
{
fprintf (stderr, "Usage: %s\n", argv[0]);
exit (1);
}
uid = geteuid ();
pw = getpwuid (uid);
if (pw)
{
puts (pw->pw_name);
exit (0);
}
fprintf (stderr,"%s: cannot find username for UID %u\n", argv[0], uid);
exit (1);
}
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