hush/miscutils/readlink.c
Eric Andersen 28355a36da Per some comments from Lars Kellogg-Stedman <lars@larsshack.org>,
make xreadlink() return NULL on failure, and make sure everyone
uses the interface correctly.
 -Erik
2001-05-07 17:48:28 +00:00

49 lines
1.2 KiB
C

/* vi: set sw=4 ts=4: */
/*
* Mini readlink implementation for busybox
*
*
* Copyright (C) 1999,2000,2001 by Lineo, inc.
* Written by Matt Kraai <kraai@alumni.carnegiemellon.edu>
*
* 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
*
*/
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include "busybox.h"
int readlink_main(int argc, char **argv)
{
char *buf = NULL;
/* no options, no getopt */
if (argc != 2)
show_usage();
buf = xreadlink(argv[1]);
if (!buf)
return EXIT_FAILURE;
puts(buf);
#ifdef BB_FEATURE_CLEAN_UP
free(buf);
#endif
return EXIT_SUCCESS;
}