diff options
Diffstat (limited to 'ln.c')
-rw-r--r-- | ln.c | 131 |
1 files changed, 0 insertions, 131 deletions
@@ -1,131 +0,0 @@ | |||
1 | /* vi: set sw=4 ts=4: */ | ||
2 | /* | ||
3 | * Mini ln implementation for busybox | ||
4 | * | ||
5 | * Copyright (C) 1999,2000,2001 by Lineo, inc. | ||
6 | * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> | ||
7 | * | ||
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. | ||
12 | * | ||
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. | ||
17 | * | ||
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 | ||
21 | * | ||
22 | */ | ||
23 | |||
24 | #include <stdio.h> | ||
25 | #include <dirent.h> | ||
26 | #include <string.h> | ||
27 | #include <stdlib.h> | ||
28 | #include <errno.h> | ||
29 | #include <unistd.h> | ||
30 | #include "busybox.h" | ||
31 | |||
32 | |||
33 | static const int LN_SYMLINK = 1; | ||
34 | static const int LN_FORCE = 2; | ||
35 | static const int LN_NODEREFERENCE = 4; | ||
36 | |||
37 | /* | ||
38 | * linkDestName is where the link points to, | ||
39 | * linkSrcName is the name of the link to be created. | ||
40 | */ | ||
41 | static int fs_link(const char *link_destname, const char *link_srcname, | ||
42 | const int flag) | ||
43 | { | ||
44 | int status; | ||
45 | int src_is_dir; | ||
46 | char *src_name; | ||
47 | |||
48 | if (link_destname==NULL) | ||
49 | return(FALSE); | ||
50 | |||
51 | src_name = (char *) xmalloc(strlen(link_srcname)+strlen(link_destname)+1); | ||
52 | |||
53 | if (link_srcname==NULL) | ||
54 | strcpy(src_name, link_destname); | ||
55 | else | ||
56 | strcpy(src_name, link_srcname); | ||
57 | |||
58 | if (flag&LN_NODEREFERENCE) | ||
59 | src_is_dir = is_directory(src_name, TRUE, NULL); | ||
60 | else | ||
61 | src_is_dir = is_directory(src_name, FALSE, NULL); | ||
62 | |||
63 | if ((src_is_dir==TRUE)&&((flag&LN_NODEREFERENCE)==0)) { | ||
64 | char* srcdir_name; | ||
65 | |||
66 | srcdir_name = xstrdup(link_destname); | ||
67 | strcat(src_name, "/"); | ||
68 | strcat(src_name, get_last_path_component(srcdir_name)); | ||
69 | free(srcdir_name); | ||
70 | } | ||
71 | |||
72 | if (flag&LN_FORCE) | ||
73 | unlink(src_name); | ||
74 | |||
75 | if (flag&LN_SYMLINK) | ||
76 | status = symlink(link_destname, src_name); | ||
77 | else | ||
78 | status = link(link_destname, src_name); | ||
79 | |||
80 | if (status != 0) { | ||
81 | perror_msg(src_name); | ||
82 | return(FALSE); | ||
83 | } | ||
84 | return(TRUE); | ||
85 | } | ||
86 | |||
87 | extern int ln_main(int argc, char **argv) | ||
88 | { | ||
89 | int status = EXIT_SUCCESS; | ||
90 | int flag = 0; | ||
91 | int opt; | ||
92 | |||
93 | /* Parse any options */ | ||
94 | while ((opt=getopt(argc, argv, "sfn")) != -1) { | ||
95 | switch(opt) { | ||
96 | case 's': | ||
97 | flag |= LN_SYMLINK; | ||
98 | break; | ||
99 | case 'f': | ||
100 | flag |= LN_FORCE; | ||
101 | break; | ||
102 | case 'n': | ||
103 | flag |= LN_NODEREFERENCE; | ||
104 | break; | ||
105 | default: | ||
106 | show_usage(); | ||
107 | } | ||
108 | } | ||
109 | if (optind > (argc-1)) { | ||
110 | show_usage(); | ||
111 | } | ||
112 | if (optind == (argc-1)) { | ||
113 | if (fs_link(argv[optind], | ||
114 | get_last_path_component(argv[optind]), flag)==FALSE) | ||
115 | status = EXIT_FAILURE; | ||
116 | } | ||
117 | while(optind<(argc-1)) { | ||
118 | if (fs_link(argv[optind], argv[argc-1], flag)==FALSE) | ||
119 | status = EXIT_FAILURE; | ||
120 | optind++; | ||
121 | } | ||
122 | exit(status); | ||
123 | } | ||
124 | |||
125 | /* | ||
126 | Local Variables: | ||
127 | c-file-style: "linux" | ||
128 | c-basic-offset: 4 | ||
129 | tab-width: 4 | ||
130 | End: | ||
131 | */ | ||