mirror of
https://github.com/topjohnwu/ndk-busybox.git
synced 2024-12-14 15:28:38 +00:00
50 lines
1.0 KiB
C
50 lines
1.0 KiB
C
/* 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 or later, see file LICENSE in this tarball for details.
|
|
*/
|
|
|
|
#include "libbb.h"
|
|
|
|
int readlink_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int readlink_main(int argc ATTRIBUTE_UNUSED, char **argv)
|
|
{
|
|
char *buf;
|
|
char *fname;
|
|
char pathbuf[PATH_MAX];
|
|
|
|
USE_FEATURE_READLINK_FOLLOW(
|
|
unsigned opt;
|
|
/* We need exactly one non-option argument. */
|
|
opt_complementary = "=1";
|
|
opt = getopt32(argv, "f");
|
|
fname = argv[optind];
|
|
)
|
|
SKIP_FEATURE_READLINK_FOLLOW(
|
|
const unsigned opt = 0;
|
|
if (argc != 2) bb_show_usage();
|
|
fname = argv[1];
|
|
)
|
|
|
|
/* compat: coreutils readlink reports errors silently via exit code */
|
|
logmode = LOGMODE_NONE;
|
|
|
|
if (opt) {
|
|
buf = realpath(fname, pathbuf);
|
|
} else {
|
|
buf = xmalloc_readlink_or_warn(fname);
|
|
}
|
|
|
|
if (!buf)
|
|
return EXIT_FAILURE;
|
|
puts(buf);
|
|
|
|
if (ENABLE_FEATURE_CLEAN_UP && !opt)
|
|
free(buf);
|
|
|
|
fflush_stdout_and_exit(EXIT_SUCCESS);
|
|
}
|