2000-02-08 19:58:47 +00:00
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/* vi: set sw=4 ts=4: */
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1999-10-13 21:12:06 +00:00
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/*
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* Mini ln implementation for busybox
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*
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2004-03-15 08:29:22 +00:00
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* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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1999-10-13 21:12:06 +00:00
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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2003-03-19 09:13:01 +00:00
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/* BB_AUDIT SUSv3 compliant */
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/* BB_AUDIT GNU options missing: -b, -d, -F, -i, -S, and -v. */
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/* http://www.opengroup.org/onlinepubs/007904975/utilities/ln.html */
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/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
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*
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* Fixed bug involving -n option. Essentially, -n was always in effect.
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*/
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2001-01-27 08:24:39 +00:00
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#include <stdlib.h>
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#include <unistd.h>
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2001-02-20 06:14:08 +00:00
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#include "busybox.h"
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2003-03-19 09:13:01 +00:00
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#define LN_SYMLINK 1
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#define LN_FORCE 2
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#define LN_NODEREFERENCE 4
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1999-10-05 16:24:54 +00:00
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2003-03-19 09:13:01 +00:00
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extern int ln_main(int argc, char **argv)
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1999-10-05 16:24:54 +00:00
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{
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2003-03-19 09:13:01 +00:00
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int status = EXIT_SUCCESS;
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int flag;
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char *last;
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char *src_name;
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2003-12-31 23:10:44 +00:00
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char *src;
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struct stat statbuf;
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2003-03-19 09:13:01 +00:00
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int (*link_func)(const char *, const char *);
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2000-10-04 09:34:35 +00:00
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2003-03-19 09:13:01 +00:00
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flag = bb_getopt_ulflags(argc, argv, "sfn");
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if (argc == optind) {
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bb_show_usage();
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2000-06-06 16:15:23 +00:00
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}
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2003-03-19 09:13:01 +00:00
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last = argv[argc - 1];
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argv += optind;
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if (argc == optind + 1) {
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*--argv = last;
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last = bb_get_last_path_component(bb_xstrdup(last));
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1999-10-05 16:24:54 +00:00
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}
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2000-02-07 05:29:42 +00:00
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2003-03-19 09:13:01 +00:00
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do {
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2003-12-31 23:10:44 +00:00
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src_name = NULL;
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2003-03-19 09:13:01 +00:00
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src = last;
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if (is_directory(src,
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(flag & LN_NODEREFERENCE) ^ LN_NODEREFERENCE,
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NULL)) {
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src_name = bb_xstrdup(*argv);
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src = concat_path_file(src, bb_get_last_path_component(src_name));
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free(src_name);
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2003-12-31 23:10:44 +00:00
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src_name = src;
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}
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2004-01-08 10:51:09 +00:00
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if (!(flag & LN_SYMLINK) && stat(*argv, &statbuf)) {
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2003-12-31 23:10:44 +00:00
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bb_perror_msg(*argv);
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status = EXIT_FAILURE;
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free(src_name);
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continue;
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2000-02-08 19:58:47 +00:00
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}
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2003-03-19 09:13:01 +00:00
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if (flag & LN_FORCE) {
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unlink(src);
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}
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link_func = link;
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if (flag & LN_SYMLINK) {
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link_func = symlink;
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}
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2004-03-15 08:29:22 +00:00
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2003-03-19 09:13:01 +00:00
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if (link_func(*argv, src) != 0) {
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bb_perror_msg(src);
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2003-12-31 23:10:44 +00:00
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status = EXIT_FAILURE;
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2003-03-19 09:13:01 +00:00
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}
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free(src_name);
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2004-03-15 08:29:22 +00:00
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2003-03-19 09:13:01 +00:00
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} while ((++argv)[1]);
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2002-04-06 05:17:57 +00:00
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return status;
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1999-10-05 16:24:54 +00:00
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}
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