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/* vi: set sw=4 ts=4: */
/*
* Mini readlink implementation for busybox
*
*
* Copyright (C) 2000 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 "busybox.h"
#include <errno.h>
#include <unistd.h>
int readlink_main(int argc, char **argv)
{
char *buf = NULL;
int bufsize = 128, size = 128;
if (argc != 2)
usage(readlink_usage);
while (bufsize < size + 1) {
bufsize *= 2;
buf = xrealloc(buf, bufsize);
size = readlink(argv[1], buf, bufsize);
if (size == -1)
error_msg_and_die("%s: %s\n", argv[1], strerror(errno));
}
buf[size] = '\0';
puts(buf);
return EXIT_SUCCESS;
}
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