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_not_a_directory
33 static const char ln_usage[] =
34 "ln [OPTION] TARGET... LINK_NAME|DIRECTORY\n"
35 #ifndef BB_FEATURE_TRIVIAL_HELP
36 "\nCreate a link named LINK_NAME or DIRECTORY to the specified TARGET\n"
37 "\nYou may use '--' to indicate that all following arguments are non-options.\n\n"
39 "\t-s\tmake symbolic links instead of hard links\n"
41 "\t-f\tremove existing destination files\n"
42 "\t-n\tno dereference symlinks - treat like normal file\n"
46 static int symlinkFlag = FALSE;
47 static int removeoldFlag = FALSE;
48 static int followLinks = TRUE;
50 extern int ln_main(int argc, char **argv)
52 char *linkName, *dirName=NULL;
59 /* Parse any options */
60 while (argc > 0 && stopIt == FALSE) {
90 linkName = argv[argc - 1];
92 linkIntoDirFlag = isDirectory(linkName, followLinks, NULL);
93 if ((argc >= 3) && linkIntoDirFlag == FALSE) {
94 errorMsg(not_a_directory, linkName);
98 if (linkIntoDirFlag == TRUE)
101 while (argc-- >= 2) {
104 if (linkIntoDirFlag == TRUE) {
105 char *baseName = get_last_path_component(*argv);
106 linkName = (char *)malloc(strlen(dirName)+strlen(baseName)+2);
107 strcpy(linkName, dirName);
108 if(dirName[strlen(dirName)-1] != '/')
109 strcat(linkName, "/");
110 strcat(linkName,baseName);
113 if (removeoldFlag == TRUE) {
114 status = (unlink(linkName) && errno != ENOENT);
121 if (symlinkFlag == TRUE)
122 status = symlink(*argv, linkName);
124 status = link(*argv, linkName);
130 if (linkIntoDirFlag == TRUE)
140 c-file-style: "linux"