*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
/* BB_AUDIT SUSv3 compliant */
#define LN_BACKUP 8
#define LN_SUFFIX 16
-int ln_main(int argc, char **argv);
+int ln_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int ln_main(int argc, char **argv)
{
int status = EXIT_SUCCESS;
- int flag;
+ int opts;
char *last;
char *src_name;
char *src;
struct stat statbuf;
int (*link_func)(const char *, const char *);
- flag = getopt32(argv, "sfnbS:", &suffix);
-
- if (argc == optind) {
- bb_show_usage();
- }
+ opt_complementary = "-1"; /* min one arg */
+ opts = getopt32(argv, "sfnbS:", &suffix);
last = argv[argc - 1];
argv += optind;
src = last;
if (is_directory(src,
- (flag & LN_NODEREFERENCE) ^ LN_NODEREFERENCE,
+ (opts & LN_NODEREFERENCE) ^ LN_NODEREFERENCE,
NULL)
) {
src_name = xstrdup(*argv);
free(src_name);
src_name = src;
}
- if (!(flag & LN_SYMLINK) && stat(*argv, &statbuf)) {
+ if (!(opts & LN_SYMLINK) && stat(*argv, &statbuf)) {
// coreutils: "ln dangling_symlink new_hardlink" works
if (lstat(*argv, &statbuf) || !S_ISLNK(statbuf.st_mode)) {
- bb_perror_msg("%s", *argv);
+ bb_simple_perror_msg(*argv);
status = EXIT_FAILURE;
free(src_name);
continue;
}
}
- if (flag & LN_BACKUP) {
+ if (opts & LN_BACKUP) {
char *backup;
backup = xasprintf("%s%s", src, suffix);
if (rename(src, backup) < 0 && errno != ENOENT) {
- bb_perror_msg("%s", src);
+ bb_simple_perror_msg(src);
status = EXIT_FAILURE;
free(backup);
continue;
* Therefore, always unlink().
*/
unlink(src);
- } else if (flag & LN_FORCE) {
+ } else if (opts & LN_FORCE) {
unlink(src);
}
link_func = link;
- if (flag & LN_SYMLINK) {
+ if (opts & LN_SYMLINK) {
link_func = symlink;
}
if (link_func(*argv, src) != 0) {
- bb_perror_msg("%s", src);
+ bb_simple_perror_msg(src);
status = EXIT_FAILURE;
}