aboutsummaryrefslogtreecommitdiff
path: root/coreutils/ln.c
diff options
context:
space:
mode:
authorManuel Novoa III <mjn3@codepoet.org>2003-03-19 09:13:01 +0000
committerManuel Novoa III <mjn3@codepoet.org>2003-03-19 09:13:01 +0000
commitcad5364599eb5062d59e0c397ed638ddd61a8d5d (patch)
treea318d0f03aa076c74b576ea45dc543a5669e8e91 /coreutils/ln.c
parente01f9662a5bd5d91be4f6b3941b57fff73cd5af1 (diff)
downloadbusybox-w32-cad5364599eb5062d59e0c397ed638ddd61a8d5d.tar.gz
busybox-w32-cad5364599eb5062d59e0c397ed638ddd61a8d5d.tar.bz2
busybox-w32-cad5364599eb5062d59e0c397ed638ddd61a8d5d.zip
Major coreutils update.
Diffstat (limited to 'coreutils/ln.c')
-rw-r--r--coreutils/ln.c163
1 files changed, 68 insertions, 95 deletions
diff --git a/coreutils/ln.c b/coreutils/ln.c
index 427ffcc6e..2edece104 100644
--- a/coreutils/ln.c
+++ b/coreutils/ln.c
@@ -21,113 +21,86 @@
21 * 21 *
22 */ 22 */
23 23
24#include <stdio.h> 24/* BB_AUDIT SUSv3 compliant */
25#include <dirent.h> 25/* BB_AUDIT GNU options missing: -b, -d, -F, -i, -S, and -v. */
26#include <string.h> 26/* http://www.opengroup.org/onlinepubs/007904975/utilities/ln.html */
27
28/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
29 *
30 * Fixed bug involving -n option. Essentially, -n was always in effect.
31 */
32
27#include <stdlib.h> 33#include <stdlib.h>
28#include <errno.h>
29#include <unistd.h> 34#include <unistd.h>
30#include "busybox.h" 35#include "busybox.h"
31 36
37#define LN_SYMLINK 1
38#define LN_FORCE 2
39#define LN_NODEREFERENCE 4
32 40
33static const int LN_SYMLINK = 1; 41extern int ln_main(int argc, char **argv)
34static const int LN_FORCE = 2;
35static 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 */
41static int fs_link(const char *link_destname, const char *link_srcname,
42 const int flag)
43{ 42{
44 int status; 43 int status = EXIT_SUCCESS;
45 int src_is_dir; 44 int flag;
46 char *src_name = 0; 45 char *last;
46 char *src_name;
47 const char *src; 47 const char *src;
48 int (*link_func)(const char *, const char *);
48 49
49 if (link_destname==NULL) 50 flag = bb_getopt_ulflags(argc, argv, "sfn");
50 return(FALSE); 51
51 52 if (argc == optind) {
52 if (link_srcname==NULL) 53 bb_show_usage();
53 src = link_destname;
54 else
55 src = link_srcname;
56
57 if (flag&LN_NODEREFERENCE)
58 src_is_dir = is_directory(src, TRUE, NULL);
59 else
60 src_is_dir = is_directory(src, FALSE, NULL);
61
62 if ((src_is_dir==TRUE)&&((flag&LN_NODEREFERENCE)==0)) {
63 char* srcdir_name;
64
65 srcdir_name = xstrdup(link_destname);
66 src_name = concat_path_file(src, get_last_path_component(srcdir_name));
67 src = src_name;
68 free(srcdir_name);
69 } 54 }
70 55
71 if (flag&LN_FORCE) 56 last = argv[argc - 1];
72 unlink(src); 57 argv += optind;
73 58
74 if (flag&LN_SYMLINK) 59 if (argc == optind + 1) {
75 status = symlink(link_destname, src); 60 *--argv = last;
76 else 61 last = bb_get_last_path_component(bb_xstrdup(last));
77 status = link(link_destname, src);
78
79 if (status != 0) {
80 perror_msg(src);
81 status = FALSE;
82 } else {
83 status = TRUE;
84 } 62 }
85 free(src_name);
86 return status;
87}
88 63
89extern int ln_main(int argc, char **argv) 64 do {
90{ 65 src_name = 0;
91 int status = EXIT_SUCCESS; 66 src = last;
92 int flag = 0; 67
93 int opt; 68 if (is_directory(src,
94 69 (flag & LN_NODEREFERENCE) ^ LN_NODEREFERENCE,
95 /* Parse any options */ 70 NULL)) {
96 while ((opt=getopt(argc, argv, "sfn")) != -1) { 71 src_name = bb_xstrdup(*argv);
97 switch(opt) { 72 src = concat_path_file(src, bb_get_last_path_component(src_name));
98 case 's': 73 free(src_name);
99 flag |= LN_SYMLINK; 74 src_name = (char *)src;
100 break;
101 case 'f':
102 flag |= LN_FORCE;
103 break;
104 case 'n':
105 flag |= LN_NODEREFERENCE;
106 break;
107 default:
108 show_usage();
109 } 75 }
110 } 76
111 if (optind > (argc-1)) { 77 if (flag & LN_FORCE) {
112 show_usage(); 78 unlink(src);
113 } 79 }
114 if (optind == (argc-1)) { 80
115 if (fs_link(argv[optind], 81 link_func = link;
116 get_last_path_component(argv[optind]), flag)==FALSE) 82 if (flag & LN_SYMLINK) {
117 status = EXIT_FAILURE; 83 link_func = symlink;
118 } 84 }
119 while(optind<(argc-1)) { 85
120 if (fs_link(argv[optind], argv[argc-1], flag)==FALSE) 86 if (link_func(*argv, src) != 0) {
121 status = EXIT_FAILURE; 87 bb_perror_msg(src);
122 optind++; 88 status = EXIT_FAILURE;;
123 } 89 }
90
91 free(src_name);
92
93 } while ((++argv)[1]);
94
124 return status; 95 return status;
125} 96}
126 97
127/* 98
128Local Variables: 99
129c-file-style: "linux" 100
130c-basic-offset: 4 101
131tab-width: 4 102
132End: 103
133*/ 104
105
106
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-17 03:15:13 +0000