busybox/coreutils/whoami.c
Eric Andersen 02e6ba91e8 Vodz' last_patch57:
Hi, Erik.

    my_getpw(uid/gid) and applets used it have problem:
    if username for uid not found, applets can`t detect it
    (but code pessent). Also "%8ld " format is bad:
    spaces not required (applets have self format
    or spec format (tar applet) and overflow for "id" applet...)
    This problem also pressent in stable version.
    Patch for unstable in attach.

    --w
    vodz
2002-09-30 20:39:56 +00:00

44 lines
1.2 KiB
C

/* vi: set sw=4 ts=4: */
/*
* Mini whoami implementation for busybox
*
* Copyright (C) 2000 Edward Betts <edward@debian.org>.
*
* 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 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/* getopt not needed */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "busybox.h"
extern int whoami_main(int argc, char **argv)
{
char user[9];
uid_t uid = geteuid();
if (argc > 1)
show_usage();
if (my_getpwuid(user, uid)) {
puts(user);
return EXIT_SUCCESS;
}
error_msg_and_die("cannot find username for UID %u", (unsigned) uid);
}