ec103dbfa415de6139864560805a8375b59278c1
[jelmer/samba4-debian.git] / source / libcli / clilist.c
1 /* 
2    Unix SMB/CIFS implementation.
3    client directory list routines
4    Copyright (C) Andrew Tridgell 1994-2003
5    Copyright (C) James Myers 2003 <myersjj@samba.org>
6    
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 2 of the License, or
10    (at your option) any later version.
11    
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16    
17    You should have received a copy of the GNU General Public License
18    along with this program; if not, write to the Free Software
19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22 #include "includes.h"
23 #include "clilist.h"
24 #include "libcli/raw/libcliraw.h"
25
26 struct search_private {
27         struct clilist_file_info *dirlist;
28         TALLOC_CTX *mem_ctx;
29         int dirlist_len;
30         int ff_searchcount;  /* total received in 1 server trip */
31         int total_received;  /* total received all together */
32         enum smb_search_level info_level;
33         const char *last_name;     /* used to continue trans2 search */
34         struct smb_search_id id;   /* used for old-style search */
35 };
36
37
38 /****************************************************************************
39  Interpret a long filename structure.
40 ****************************************************************************/
41 static BOOL interpret_long_filename(enum smb_search_level level,
42                                     union smb_search_data *info,
43                                     struct clilist_file_info *finfo)
44 {
45         struct clilist_file_info finfo2;
46
47         if (!finfo) finfo = &finfo2;
48         ZERO_STRUCTP(finfo);
49
50         switch (level) {
51         case RAW_SEARCH_STANDARD:
52                 finfo->size = info->standard.size;
53                 finfo->mtime = info->standard.write_time;
54                 finfo->attrib = info->standard.attrib;
55                 finfo->name = info->standard.name.s;
56                 finfo->short_name = info->standard.name.s;
57                 break;
58
59         case RAW_SEARCH_BOTH_DIRECTORY_INFO:
60                 finfo->size = info->both_directory_info.size;
61                 finfo->mtime = nt_time_to_unix(info->both_directory_info.write_time);
62                 finfo->attrib = info->both_directory_info.attrib;
63                 finfo->short_name = info->both_directory_info.short_name.s;
64                 finfo->name = info->both_directory_info.name.s;
65                 break;
66
67         default:
68                 DEBUG(0,("Unhandled level %d in interpret_long_filename\n", (int)level));
69                 return False;
70         }
71
72         return True;
73 }
74
75 /* callback function used for trans2 search */
76 static BOOL smbcli_list_new_callback(void *private, union smb_search_data *file)
77 {
78         struct search_private *state = (struct search_private*) private;
79         struct clilist_file_info *tdl;
80  
81         /* add file info to the dirlist pool */
82         tdl = talloc_realloc(state, 
83                              state->dirlist,
84                              state->dirlist_len + sizeof(struct clilist_file_info));
85
86         if (!tdl) {
87                 return False;
88         }
89         state->dirlist = tdl;
90         state->dirlist_len += sizeof(struct clilist_file_info);
91
92         interpret_long_filename(state->info_level, file, &state->dirlist[state->total_received]);
93
94         state->last_name = state->dirlist[state->total_received].name;
95         state->total_received++;
96         state->ff_searchcount++;
97         
98         return True;
99 }
100
101 int smbcli_list_new(struct smbcli_tree *tree, const char *Mask, uint16_t attribute, 
102                     enum smb_search_level level,
103                     void (*fn)(struct clilist_file_info *, const char *, void *), 
104                     void *caller_state)
105 {
106         union smb_search_first first_parms;
107         union smb_search_next next_parms;
108         struct search_private state;  /* for callbacks */
109         int received = 0;
110         BOOL first = True;
111         int num_received = 0;
112         int max_matches = 512;
113         char *mask;
114         int ff_eos = 0, i, ff_searchcount;
115         int ff_dir_handle=0;
116
117         /* initialize state for search */
118         state.mem_ctx = talloc_init("smbcli_list_new");
119         state.dirlist_len = 0;
120         state.total_received = 0;
121         
122         state.dirlist = talloc_new(state.mem_ctx);
123         mask = talloc_strdup(state.mem_ctx, Mask);
124
125         if (level == RAW_SEARCH_GENERIC) {
126                 if (tree->session->transport->negotiate.capabilities & CAP_NT_SMBS) {
127                         level = RAW_SEARCH_BOTH_DIRECTORY_INFO;
128                 } else {
129                         level = RAW_SEARCH_STANDARD;
130                 }
131         }
132         state.info_level = level;
133
134         while (1) {
135                 state.ff_searchcount = 0;
136                 if (first) {
137                         NTSTATUS status;
138
139                         first_parms.t2ffirst.level = state.info_level;
140                         first_parms.t2ffirst.in.max_count = max_matches;
141                         first_parms.t2ffirst.in.search_attrib = attribute;
142                         first_parms.t2ffirst.in.pattern = mask;
143                         first_parms.t2ffirst.in.flags = FLAG_TRANS2_FIND_CLOSE_IF_END;
144                         first_parms.t2ffirst.in.storage_type = 0;
145                         
146                         status = smb_raw_search_first(tree, 
147                                                       state.mem_ctx, &first_parms,
148                                                       (void*)&state, smbcli_list_new_callback);
149                         if (!NT_STATUS_IS_OK(status)) {
150                                 talloc_destroy(state.mem_ctx);
151                                 return -1;
152                         }
153                 
154                         ff_dir_handle = first_parms.t2ffirst.out.handle;
155                         ff_searchcount = first_parms.t2ffirst.out.count;
156                         ff_eos = first_parms.t2ffirst.out.end_of_search;
157                         
158                         received = first_parms.t2ffirst.out.count;
159                         if (received <= 0) break;
160                         if (ff_eos) break;
161                         first = False;
162                 } else {
163                         NTSTATUS status;
164
165                         next_parms.t2fnext.level = state.info_level;
166                         next_parms.t2fnext.in.max_count = max_matches;
167                         next_parms.t2fnext.in.last_name = state.last_name;
168                         next_parms.t2fnext.in.handle = ff_dir_handle;
169                         next_parms.t2fnext.in.resume_key = 0;
170                         next_parms.t2fnext.in.flags = FLAG_TRANS2_FIND_CLOSE_IF_END;
171                         
172                         status = smb_raw_search_next(tree, 
173                                                      state.mem_ctx,
174                                                      &next_parms,
175                                                      (void*)&state, 
176                                                      smbcli_list_new_callback);
177                         
178                         if (!NT_STATUS_IS_OK(status)) {
179                                 return -1;
180                         }
181                         ff_searchcount = next_parms.t2fnext.out.count;
182                         ff_eos = next_parms.t2fnext.out.end_of_search;
183                         received = next_parms.t2fnext.out.count;
184                         if (received <= 0) break;
185                         if (ff_eos) break;
186                 }
187                 
188                 num_received += received;
189         }
190
191         for (i=0;i<state.total_received;i++) {
192                 fn(&state.dirlist[i], Mask, caller_state);
193         }
194
195         talloc_destroy(state.mem_ctx);
196
197         return state.total_received;
198 }
199
200 /****************************************************************************
201  Interpret a short filename structure.
202  The length of the structure is returned.
203 ****************************************************************************/
204 static BOOL interpret_short_filename(int level,
205                                 union smb_search_data *info,
206                                 struct clilist_file_info *finfo)
207 {
208         struct clilist_file_info finfo2;
209
210         if (!finfo) finfo = &finfo2;
211         ZERO_STRUCTP(finfo);
212         
213         finfo->mtime = info->search.write_time;
214         finfo->size = info->search.size;
215         finfo->attrib = info->search.attrib;
216         finfo->name = info->search.name;
217         finfo->short_name = info->search.name;
218         return True;
219 }
220
221 /* callback function used for smb_search */
222 static BOOL smbcli_list_old_callback(void *private, union smb_search_data *file)
223 {
224         struct search_private *state = (struct search_private*) private;
225         struct clilist_file_info *tdl;
226         
227         /* add file info to the dirlist pool */
228         tdl = talloc_realloc(state,
229                              state->dirlist,
230                              state->dirlist_len + sizeof(struct clilist_file_info));
231
232         if (!tdl) {
233                 return False;
234         }
235         state->dirlist = tdl;
236         state->dirlist_len += sizeof(struct clilist_file_info);
237
238         interpret_short_filename(state->info_level, file, &state->dirlist[state->total_received]);
239
240         state->total_received++;
241         state->ff_searchcount++;
242         state->id = file->search.id; /* return resume info */
243         
244         return True;
245 }
246
247 int smbcli_list_old(struct smbcli_tree *tree, const char *Mask, uint16_t attribute, 
248                  void (*fn)(struct clilist_file_info *, const char *, void *), 
249                  void *caller_state)
250 {
251         union smb_search_first first_parms;
252         union smb_search_next next_parms;
253         struct search_private state;  /* for callbacks */
254         const int num_asked = 500;
255         int received = 0;
256         BOOL first = True;
257         int num_received = 0;
258         char *mask;
259         int i;
260
261         /* initialize state for search */
262         state.mem_ctx = talloc_init("smbcli_list_old");
263         state.dirlist_len = 0;
264         state.total_received = 0;
265
266         state.dirlist = talloc_new(state.mem_ctx);
267         mask = talloc_strdup(state.mem_ctx, Mask);
268   
269         while (1) {
270                 state.ff_searchcount = 0;
271                 if (first) {
272                         NTSTATUS status;
273
274                         first_parms.search_first.level = RAW_SEARCH_SEARCH;
275                         first_parms.search_first.in.max_count = num_asked;
276                         first_parms.search_first.in.search_attrib = attribute;
277                         first_parms.search_first.in.pattern = mask;
278                         
279                         status = smb_raw_search_first(tree, state.mem_ctx, 
280                                                       &first_parms,
281                                                       (void*)&state, 
282                                                       smbcli_list_old_callback);
283
284                         if (!NT_STATUS_IS_OK(status)) {
285                                 talloc_destroy(state.mem_ctx);
286                                 return -1;
287                         }
288                 
289                         received = first_parms.search_first.out.count;
290                         if (received <= 0) break;
291                         first = False;
292                 } else {
293                         NTSTATUS status;
294
295                         next_parms.search_next.level = RAW_SEARCH_SEARCH;
296                         next_parms.search_next.in.max_count = num_asked;
297                         next_parms.search_next.in.search_attrib = attribute;
298                         next_parms.search_next.in.id = state.id;
299                         
300                         status = smb_raw_search_next(tree, state.mem_ctx,
301                                                      &next_parms,
302                                                      (void*)&state, 
303                                                      smbcli_list_old_callback);
304
305                         if (NT_STATUS_EQUAL(status, STATUS_NO_MORE_FILES)) {
306                                 break;
307                         }
308                         if (!NT_STATUS_IS_OK(status)) {
309                                 talloc_destroy(state.mem_ctx);
310                                 return -1;
311                         }
312                         received = next_parms.search_next.out.count;
313                         if (received <= 0) break;
314                 }
315                 
316                 num_received += received;
317         }
318
319         for (i=0;i<state.total_received;i++) {
320                 fn(&state.dirlist[i], Mask, caller_state);
321         }
322
323         talloc_destroy(state.mem_ctx);
324
325         return state.total_received;
326 }
327
328 /****************************************************************************
329  Do a directory listing, calling fn on each file found.
330  This auto-switches between old and new style.
331 ****************************************************************************/
332
333 int smbcli_list(struct smbcli_tree *tree, const char *Mask,uint16_t attribute, 
334                 void (*fn)(struct clilist_file_info *, const char *, void *), void *state)
335 {
336         if (tree->session->transport->negotiate.protocol <= PROTOCOL_LANMAN1)
337                 return smbcli_list_old(tree, Mask, attribute, fn, state);
338         return smbcli_list_new(tree, Mask, attribute, RAW_SEARCH_GENERIC, fn, state);
339 }