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DEFINITIONS
This source file includes following definitions.
- svfs_unix_path
- svfs_list_unix
- svfs_list
- svfs_file_utime
- svfs_unix_to_dos_attrib
1 /*
2 Unix SMB/CIFS implementation.
3
4 simple NTVFS filesystem backend
5
6 Copyright (C) Andrew Tridgell 2003
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 3 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
16 GNU 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, see <http://www.gnu.org/licenses/>.
20 */
21 /*
22 utility functions for simple backend
23 */
24
25 #include "includes.h"
26 #include "system/filesys.h"
27 #include "svfs.h"
28 #include "system/time.h"
29 #include "system/dir.h"
30 #include "ntvfs/ntvfs.h"
31 #include "ntvfs/simple/proto.h"
32
33 /*
34 convert a windows path to a unix path - don't do any manging or case sensitive handling
35 */
36 char *svfs_unix_path(struct ntvfs_module_context *ntvfs,
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37 struct ntvfs_request *req, const char *name)
38 {
39 struct svfs_private *p = ntvfs->private_data;
40 char *ret;
41
42 if (*name != '\\') {
43 ret = talloc_asprintf(req, "%s/%s", p->connectpath, name);
44 } else {
45 ret = talloc_asprintf(req, "%s%s", p->connectpath, name);
46 }
47 all_string_sub(ret, "\\", "/", 0);
48
49 strlower(ret + strlen(p->connectpath));
50
51 return ret;
52 }
53
54
55 /*
56 read a directory and find all matching file names and stat info
57 returned names are separate unix and DOS names. The returned names
58 are relative to the directory
59 */
60 struct svfs_dir *svfs_list_unix(TALLOC_CTX *mem_ctx, struct ntvfs_request *req, const char *unix_path)
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61 {
62 char *p, *mask;
63 struct svfs_dir *dir;
64 DIR *odir;
65 struct dirent *dent;
66 uint_t allocated = 0;
67 char *low_mask;
68
69 dir = talloc(mem_ctx, struct svfs_dir);
70 if (!dir) { return NULL; }
71
72 dir->count = 0;
73 dir->files = 0;
74
75 /* find the base directory */
76 p = strrchr(unix_path, '/');
77 if (!p) { return NULL; }
78
79 dir->unix_dir = talloc_strndup(mem_ctx, unix_path, PTR_DIFF(p, unix_path));
80 if (!dir->unix_dir) { return NULL; }
81
82 /* the wildcard pattern is the last part */
83 mask = p+1;
84
85 low_mask = talloc_strdup(mem_ctx, mask);
86 if (!low_mask) { return NULL; }
87 strlower(low_mask);
88
89 odir = opendir(dir->unix_dir);
90 if (!odir) { return NULL; }
91
92 while ((dent = readdir(odir))) {
93 uint_t i = dir->count;
94 char *full_name;
95 char *low_name;
96
97 if (strchr(dent->d_name, ':') && !strchr(unix_path, ':')) {
98 /* don't show streams in dir listing */
99 continue;
100 }
101
102 low_name = talloc_strdup(mem_ctx, dent->d_name);
103 if (!low_name) { continue; }
104 strlower(low_name);
105
106 /* check it matches the wildcard pattern */
107 if (ms_fnmatch(low_mask, low_name, PROTOCOL_NT1) != 0) {
108 continue;
109 }
110
111 if (dir->count >= allocated) {
112 allocated = (allocated + 100) * 1.2;
113 dir->files = talloc_realloc(dir, dir->files, struct svfs_dirfile, allocated);
114 if (!dir->files) {
115 closedir(odir);
116 return NULL;
117 }
118 }
119
120 dir->files[i].name = low_name;
121 if (!dir->files[i].name) { continue; }
122
123 asprintf(&full_name, "%s/%s", dir->unix_dir, dir->files[i].name);
124 if (!full_name) { continue; }
125
126 if (stat(full_name, &dir->files[i].st) == 0) {
127 dir->count++;
128 }
129
130 free(full_name);
131 }
132
133 closedir(odir);
134
135 return dir;
136 }
137
138 /*
139 read a directory and find all matching file names and stat info
140 returned names are separate unix and DOS names. The returned names
141 are relative to the directory
142 */
143 struct svfs_dir *svfs_list(struct ntvfs_module_context *ntvfs, struct ntvfs_request *req, const char *pattern)
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144 {
145 struct svfs_private *p = ntvfs->private_data;
146 char *unix_path;
147
148 unix_path = svfs_unix_path(ntvfs, req, pattern);
149 if (!unix_path) { return NULL; }
150
151 return svfs_list_unix(p, req, unix_path);
152 }
153
154
155 /*******************************************************************
156 set the time on a file via file descriptor
157 *******************************************************************/
158 int svfs_file_utime(int fd, struct utimbuf *times)
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159 {
160 char *fd_path = NULL;
161 int ret;
162
163 asprintf(&fd_path, "/proc/self/%d", fd);
164 if (!fd_path) {
165 errno = ENOMEM;
166 return -1;
167 }
168
169 ret = utime(fd_path, times);
170 free(fd_path);
171 return ret;
172 }
173
174
175 /*
176 map a unix file attrib to a DOS attribute
177 */
178 uint16_t svfs_unix_to_dos_attrib(mode_t mode)
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179 {
180 uint16_t ret = 0;
181 if (S_ISDIR(mode)) ret |= FILE_ATTRIBUTE_DIRECTORY;
182 if (!(mode & S_IWUSR)) ret |= FILE_ATTRIBUTE_READONLY;
183 return ret;
184 }
185