1 /* vi: set sw=4 ts=4: */
3 * Mini ln implementation for busybox
5 * Copyright (C) 1999,2000 by Lineo, inc.
6 * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #define BB_DECLARE_EXTERN
26 #define bb_need_name_too_long
27 #define bb_need_not_a_directory
34 static const char ln_usage[] =
35 "ln [OPTION] TARGET... LINK_NAME|DIRECTORY\n"
36 #ifndef BB_FEATURE_TRIVIAL_HELP
37 "\nCreate a link named LINK_NAME or DIRECTORY to the specified TARGET\n"
38 "\nYou may use '--' to indicate that all following arguments are non-options.\n\n"
40 "\t-s\tmake symbolic links instead of hard links\n"
42 "\t-f\tremove existing destination files\n"
43 "\t-n\tno dereference symlinks - treat like normal file\n"
47 static int symlinkFlag = FALSE;
48 static int removeoldFlag = FALSE;
49 static int followLinks = TRUE;
51 extern int ln_main(int argc, char **argv)
53 char *linkName, *dirName=NULL;
60 /* Parse any options */
61 while (argc > 0 && stopIt == FALSE) {
91 linkName = argv[argc - 1];
93 linkIntoDirFlag = isDirectory(linkName, followLinks, NULL);
94 if ((argc >= 3) && linkIntoDirFlag == FALSE) {
95 fprintf(stderr, not_a_directory, "ln", linkName);
99 if (linkIntoDirFlag == TRUE)
102 while (argc-- >= 2) {
105 if (linkIntoDirFlag == TRUE) {
106 char *baseName = get_last_path_component(*argv);
107 linkName = (char *)malloc(strlen(dirName)+strlen(baseName)+2);
108 strcpy(linkName, dirName);
109 if(dirName[strlen(dirName)-1] != '/')
110 strcat(linkName, "/");
111 strcat(linkName,baseName);
114 if (removeoldFlag == TRUE) {
115 status = (unlink(linkName) && errno != ENOENT);
122 if (symlinkFlag == TRUE)
123 status = symlink(*argv, linkName);
125 status = link(*argv, linkName);
131 if (linkIntoDirFlag == TRUE)
141 c-file-style: "linux"