blob: 10fb01ebf9840bcf73f557d7379611f84def0f5c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
/* vi: set sw=4 ts=4: */
/*
* Mini readlink implementation for busybox
*
* Copyright (C) 2000,2001 Matt Kraai <kraai@alumni.carnegiemellon.edu>
*
* Licensed under GPL v2, see file LICENSE in this tarball for details.
*/
#include "busybox.h"
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <getopt.h>
#define READLINK_FLAG_f (1 << 0)
int readlink_main(int argc, char **argv)
{
char *buf;
unsigned long opt = ENABLE_FEATURE_READLINK_FOLLOW ?
bb_getopt_ulflags(argc, argv, "f") : 0;
if (argc != (ENABLE_FEATURE_READLINK_FOLLOW ? optind + 1 : 2))
bb_show_usage();
if (opt & READLINK_FLAG_f)
buf = realpath(argv[optind], bb_common_bufsiz1);
else
buf = xreadlink(argv[ENABLE_FEATURE_READLINK_FOLLOW ? optind : 1]);
if (!buf)
return EXIT_FAILURE;
puts(buf);
if (ENABLE_FEATURE_CLEAN_UP && buf != bb_common_bufsiz1)
free(buf);
return EXIT_SUCCESS;
}
|
