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f0f5767f | 1 | /* -*- c-file-style: "linux" -*- |
0f2ac855 | 2 | * |
07a874fd MP |
3 | * Copyright (C) 1996-2001 by Andrew Tridgell <tridge@samba.org> |
4 | * Copyright (C) 1996 by Paul Mackerras | |
5 | * Copyright (C) 2002 by Martin Pool | |
0f2ac855 | 6 | * |
07a874fd MP |
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. | |
0f2ac855 | 11 | * |
07a874fd MP |
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. | |
0f2ac855 | 16 | * |
07a874fd MP |
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 | */ | |
c627d613 | 21 | |
2b6b4d53 AT |
22 | /* a lot of this stuff was originally derived from GNU tar, although |
23 | it has now changed so much that it is hard to tell :) */ | |
c627d613 | 24 | |
d567322f MP |
25 | /* include/exclude cluestick added by Martin Pool <mbp@samba.org> */ |
26 | ||
c627d613 AT |
27 | #include "rsync.h" |
28 | ||
29 | extern int verbose; | |
5a016db9 | 30 | extern int am_server; |
40d38dc0 WD |
31 | extern int eol_nulls; |
32 | extern int list_only; | |
33 | extern int recurse; | |
6dfd07d0 WD |
34 | extern int io_error; |
35 | extern int sanitize_paths; | |
36 | extern int protocol_version; | |
bf39270e | 37 | extern int module_id; |
40d38dc0 WD |
38 | |
39 | extern char curr_dir[]; | |
6dfd07d0 WD |
40 | extern unsigned int curr_dir_len; |
41 | extern unsigned int module_dirlen; | |
c627d613 | 42 | |
7842418b WD |
43 | struct filter_list_struct filter_list = { 0, 0, "" }; |
44 | struct filter_list_struct server_filter_list = { 0, 0, "server " }; | |
c627d613 | 45 | |
6dfd07d0 | 46 | /* Need room enough for ":MODS " prefix plus some room to grow. */ |
7842418b | 47 | #define MAX_RULE_PREFIX (16) |
6dfd07d0 | 48 | |
b6f06b8e WD |
49 | #define MODIFIERS_MERGE_FILE "-+Cens" |
50 | #define MODIFIERS_INCL_EXCL "/!" | |
51 | ||
7842418b | 52 | /* The dirbuf is set by push_local_filters() to the current subdirectory |
6dfd07d0 WD |
53 | * relative to curr_dir that is being processed. The path always has a |
54 | * trailing slash appended, and the variable dirbuf_len contains the length | |
55 | * of this path prefix. The path is always absolute. */ | |
56 | static char dirbuf[MAXPATHLEN+1]; | |
57 | static unsigned int dirbuf_len = 0; | |
58 | static int dirbuf_depth; | |
59 | ||
60 | /* This is True when we're scanning parent dirs for per-dir merge-files. */ | |
61 | static BOOL parent_dirscan = False; | |
62 | ||
63 | /* This array contains a list of all the currently active per-dir merge | |
64 | * files. This makes it easier to save the appropriate values when we | |
65 | * "push" down into each subdirectory. */ | |
7842418b | 66 | static struct filter_struct **mergelist_parents; |
6dfd07d0 WD |
67 | static int mergelist_cnt = 0; |
68 | static int mergelist_size = 0; | |
69 | ||
7842418b | 70 | /* Each filter_list_struct describes a singly-linked list by keeping track |
6dfd07d0 WD |
71 | * of both the head and tail pointers. The list is slightly unusual in that |
72 | * a parent-dir's content can be appended to the end of the local list in a | |
73 | * special way: the last item in the local list has its "next" pointer set | |
74 | * to point to the inherited list, but the local list's tail pointer points | |
75 | * at the end of the local list. Thus, if the local list is empty, the head | |
76 | * will be pointing at the inherited content but the tail will be NULL. To | |
77 | * help you visualize this, here are the possible list arrangements: | |
78 | * | |
79 | * Completely Empty Local Content Only | |
80 | * ================================== ==================================== | |
81 | * head -> NULL head -> Local1 -> Local2 -> NULL | |
82 | * tail -> NULL tail -------------^ | |
83 | * | |
84 | * Inherited Content Only Both Local and Inherited Content | |
85 | * ================================== ==================================== | |
86 | * head -> Parent1 -> Parent2 -> NULL head -> L1 -> L2 -> P1 -> P2 -> NULL | |
87 | * tail -> NULL tail ---------^ | |
88 | * | |
89 | * This means that anyone wanting to traverse the whole list to use it just | |
90 | * needs to start at the head and use the "next" pointers until it goes | |
91 | * NULL. To add new local content, we insert the item after the tail item | |
92 | * and update the tail (obviously, if "tail" was NULL, we insert it at the | |
93 | * head). To clear the local list, WE MUST NOT FREE THE INHERITED CONTENT | |
94 | * because it is shared between the current list and our parent list(s). | |
95 | * The easiest way to handle this is to simply truncate the list after the | |
96 | * tail item and then free the local list from the head. When inheriting | |
7842418b | 97 | * the list for a new local dir, we just save off the filter_list_struct |
6dfd07d0 WD |
98 | * values (so we can pop back to them later) and set the tail to NULL. |
99 | */ | |
100 | ||
7842418b | 101 | static void free_filter(struct filter_struct *ex) |
6dfd07d0 WD |
102 | { |
103 | if (ex->match_flags & MATCHFLG_PERDIR_MERGE) { | |
104 | free(ex->u.mergelist->debug_type); | |
105 | free(ex->u.mergelist); | |
106 | mergelist_cnt--; | |
107 | } | |
108 | free(ex->pattern); | |
109 | free(ex); | |
110 | } | |
111 | ||
7842418b | 112 | /* Build a filter structure given a filter pattern. The value in "pat" |
6dfd07d0 | 113 | * is not null-terminated. */ |
bf39270e | 114 | static void filter_rule(struct filter_list_struct *listp, const char *pat, |
b6f06b8e | 115 | unsigned int pat_len, unsigned mflags, int xflags) |
c627d613 | 116 | { |
7842418b | 117 | struct filter_struct *ret; |
f8f72644 | 118 | const char *cp; |
5e972dcf | 119 | unsigned int ex_len; |
c627d613 | 120 | |
6dfd07d0 | 121 | if (verbose > 2) { |
bf39270e | 122 | rprintf(FINFO, "[%s] filter_rule(%.*s, %s%s)\n", |
6dfd07d0 WD |
123 | who_am_i(), (int)pat_len, pat, |
124 | mflags & MATCHFLG_PERDIR_MERGE ? "per-dir-merge" | |
125 | : mflags & MATCHFLG_INCLUDE ? "include" : "exclude", | |
126 | listp->debug_type); | |
127 | } | |
128 | ||
7842418b | 129 | ret = new(struct filter_struct); |
f8f72644 | 130 | if (!ret) |
bf39270e | 131 | out_of_memory("filter_rule"); |
5f5be796 | 132 | memset(ret, 0, sizeof ret[0]); |
2b6b4d53 | 133 | |
bf39270e WD |
134 | if (xflags & XFLG_ANCHORED2ABS && *pat == '/' |
135 | && !(mflags & (MATCHFLG_ABS_PATH | MATCHFLG_MERGE_FILE))) { | |
136 | mflags |= MATCHFLG_ABS_PATH; | |
137 | ex_len = dirbuf_len - module_dirlen - 1; | |
6dfd07d0 | 138 | } else |
f8f72644 WD |
139 | ex_len = 0; |
140 | ret->pattern = new_array(char, ex_len + pat_len + 1); | |
141 | if (!ret->pattern) | |
bf39270e | 142 | out_of_memory("filter_rule"); |
f8f72644 | 143 | if (ex_len) |
6dfd07d0 | 144 | memcpy(ret->pattern, dirbuf + module_dirlen, ex_len); |
5e972dcf | 145 | strlcpy(ret->pattern + ex_len, pat, pat_len + 1); |
f8f72644 WD |
146 | pat_len += ex_len; |
147 | ||
148 | if (strpbrk(ret->pattern, "*[?")) { | |
5e972dcf | 149 | mflags |= MATCHFLG_WILD; |
96d3590a | 150 | if ((cp = strstr(ret->pattern, "**")) != NULL) { |
5e972dcf | 151 | mflags |= MATCHFLG_WILD2; |
170381c0 | 152 | /* If the pattern starts with **, note that. */ |
96d3590a | 153 | if (cp == ret->pattern) |
5e972dcf | 154 | mflags |= MATCHFLG_WILD2_PREFIX; |
0f2ac855 | 155 | } |
2bca43f6 | 156 | } |
c627d613 | 157 | |
5be7fa93 WD |
158 | if (pat_len > 1 && ret->pattern[pat_len-1] == '/') { |
159 | ret->pattern[pat_len-1] = 0; | |
5e972dcf | 160 | mflags |= MATCHFLG_DIRECTORY; |
2b6b4d53 | 161 | } |
c627d613 | 162 | |
6dfd07d0 | 163 | if (mflags & MATCHFLG_PERDIR_MERGE) { |
7842418b | 164 | struct filter_list_struct *lp; |
6dfd07d0 WD |
165 | unsigned int len; |
166 | int i; | |
167 | ||
168 | if ((cp = strrchr(ret->pattern, '/')) != NULL) | |
169 | cp++; | |
170 | else | |
171 | cp = ret->pattern; | |
172 | ||
173 | /* If the local merge file was already mentioned, don't | |
174 | * add it again. */ | |
175 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b | 176 | struct filter_struct *ex = mergelist_parents[i]; |
6dfd07d0 WD |
177 | const char *s = strrchr(ex->pattern, '/'); |
178 | if (s) | |
bf39270e | 179 | s++; |
6dfd07d0 | 180 | else |
bf39270e | 181 | s = ex->pattern; |
6dfd07d0 WD |
182 | len = strlen(s); |
183 | if (len == pat_len - (cp - ret->pattern) | |
184 | && memcmp(s, cp, len) == 0) { | |
7842418b | 185 | free_filter(ret); |
6dfd07d0 WD |
186 | return; |
187 | } | |
188 | } | |
189 | ||
7842418b | 190 | if (!(lp = new_array(struct filter_list_struct, 1))) |
bf39270e | 191 | out_of_memory("filter_rule"); |
6dfd07d0 WD |
192 | lp->head = lp->tail = NULL; |
193 | if (asprintf(&lp->debug_type, " (per-dir %s)", cp) < 0) | |
bf39270e | 194 | out_of_memory("filter_rule"); |
6dfd07d0 WD |
195 | ret->u.mergelist = lp; |
196 | ||
197 | if (mergelist_cnt == mergelist_size) { | |
198 | mergelist_size += 5; | |
199 | mergelist_parents = realloc_array(mergelist_parents, | |
7842418b | 200 | struct filter_struct *, |
6dfd07d0 WD |
201 | mergelist_size); |
202 | if (!mergelist_parents) | |
bf39270e | 203 | out_of_memory("filter_rule"); |
6dfd07d0 WD |
204 | } |
205 | mergelist_parents[mergelist_cnt++] = ret; | |
206 | } else { | |
207 | for (cp = ret->pattern; (cp = strchr(cp, '/')) != NULL; cp++) | |
208 | ret->u.slash_cnt++; | |
209 | } | |
0944563e | 210 | |
c1b29492 WD |
211 | ret->match_flags = mflags; |
212 | ||
6dfd07d0 WD |
213 | if (!listp->tail) { |
214 | ret->next = listp->head; | |
b2aa573b | 215 | listp->head = listp->tail = ret; |
6dfd07d0 WD |
216 | } else { |
217 | ret->next = listp->tail->next; | |
b2aa573b WD |
218 | listp->tail->next = ret; |
219 | listp->tail = ret; | |
220 | } | |
2b6b4d53 AT |
221 | } |
222 | ||
7842418b | 223 | static void clear_filter_list(struct filter_list_struct *listp) |
2b6b4d53 | 224 | { |
6dfd07d0 | 225 | if (listp->tail) { |
7842418b | 226 | struct filter_struct *ent, *next; |
6dfd07d0 WD |
227 | /* Truncate any inherited items from the local list. */ |
228 | listp->tail->next = NULL; | |
229 | /* Now free everything that is left. */ | |
230 | for (ent = listp->head; ent; ent = next) { | |
231 | next = ent->next; | |
7842418b | 232 | free_filter(ent); |
6dfd07d0 WD |
233 | } |
234 | } | |
235 | ||
236 | listp->head = listp->tail = NULL; | |
2b6b4d53 | 237 | } |
c627d613 | 238 | |
6dfd07d0 WD |
239 | /* This returns an expanded (absolute) filename for the merge-file name if |
240 | * the name has any slashes in it OR if the parent_dirscan var is True; | |
241 | * otherwise it returns the original merge_file name. If the len_ptr value | |
242 | * is non-NULL the merge_file name is limited by the referenced length | |
243 | * value and will be updated with the length of the resulting name. We | |
244 | * always return a name that is null terminated, even if the merge_file | |
245 | * name was not. */ | |
246 | static char *parse_merge_name(const char *merge_file, unsigned int *len_ptr, | |
247 | unsigned int prefix_skip) | |
5be7fa93 | 248 | { |
6dfd07d0 WD |
249 | static char buf[MAXPATHLEN]; |
250 | char *fn, tmpbuf[MAXPATHLEN]; | |
251 | unsigned int fn_len; | |
252 | ||
253 | if (!parent_dirscan && *merge_file != '/') { | |
254 | /* Return the name unchanged it doesn't have any slashes. */ | |
255 | if (len_ptr) { | |
256 | const char *p = merge_file + *len_ptr; | |
257 | while (--p > merge_file && *p != '/') {} | |
258 | if (p == merge_file) { | |
259 | strlcpy(buf, merge_file, *len_ptr + 1); | |
260 | return buf; | |
261 | } | |
262 | } else if (strchr(merge_file, '/') == NULL) | |
263 | return (char *)merge_file; | |
264 | } | |
5be7fa93 | 265 | |
6dfd07d0 WD |
266 | fn = *merge_file == '/' ? buf : tmpbuf; |
267 | if (sanitize_paths) { | |
268 | const char *r = prefix_skip ? "/" : NULL; | |
269 | /* null-terminate the name if it isn't already */ | |
270 | if (len_ptr && merge_file[*len_ptr]) { | |
271 | char *to = fn == buf ? tmpbuf : buf; | |
272 | strlcpy(to, merge_file, *len_ptr + 1); | |
273 | merge_file = to; | |
274 | } | |
275 | if (!sanitize_path(fn, merge_file, r, dirbuf_depth)) { | |
276 | rprintf(FERROR, "merge-file name overflows: %s\n", | |
277 | merge_file); | |
278 | return NULL; | |
279 | } | |
280 | } else { | |
281 | strlcpy(fn, merge_file, len_ptr ? *len_ptr + 1 : MAXPATHLEN); | |
282 | clean_fname(fn, 1); | |
b2aa573b | 283 | } |
6dfd07d0 WD |
284 | |
285 | fn_len = strlen(fn); | |
286 | if (fn == buf) | |
287 | goto done; | |
288 | ||
289 | if (dirbuf_len + fn_len >= MAXPATHLEN) { | |
290 | rprintf(FERROR, "merge-file name overflows: %s\n", fn); | |
291 | return NULL; | |
292 | } | |
293 | memcpy(buf, dirbuf + prefix_skip, dirbuf_len - prefix_skip); | |
294 | memcpy(buf + dirbuf_len - prefix_skip, fn, fn_len + 1); | |
295 | fn_len = clean_fname(buf, 1); | |
296 | ||
297 | done: | |
298 | if (len_ptr) | |
299 | *len_ptr = fn_len; | |
300 | return buf; | |
301 | } | |
5be7fa93 | 302 | |
6dfd07d0 | 303 | /* Sets the dirbuf and dirbuf_len values. */ |
7842418b | 304 | void set_filter_dir(const char *dir, unsigned int dirlen) |
6dfd07d0 WD |
305 | { |
306 | unsigned int len; | |
307 | if (*dir != '/') { | |
308 | memcpy(dirbuf, curr_dir, curr_dir_len); | |
309 | dirbuf[curr_dir_len] = '/'; | |
310 | len = curr_dir_len + 1; | |
311 | if (len + dirlen >= MAXPATHLEN) | |
312 | dirlen = 0; | |
313 | } else | |
314 | len = 0; | |
315 | memcpy(dirbuf + len, dir, dirlen); | |
316 | dirbuf[dirlen + len] = '\0'; | |
317 | dirbuf_len = clean_fname(dirbuf, 1); | |
318 | if (dirbuf_len > 1 && dirbuf[dirbuf_len-1] == '.' | |
319 | && dirbuf[dirbuf_len-2] == '/') | |
320 | dirbuf_len -= 2; | |
321 | if (dirbuf_len != 1) | |
322 | dirbuf[dirbuf_len++] = '/'; | |
323 | dirbuf[dirbuf_len] = '\0'; | |
324 | if (sanitize_paths) | |
325 | dirbuf_depth = count_dir_elements(dirbuf + module_dirlen); | |
326 | } | |
327 | ||
328 | /* This routine takes a per-dir merge-file entry and finishes its setup. | |
329 | * If the name has a path portion then we check to see if it refers to a | |
330 | * parent directory of the first transfer dir. If it does, we scan all the | |
331 | * dirs from that point through the parent dir of the transfer dir looking | |
332 | * for the per-dir merge-file in each one. */ | |
7842418b | 333 | static BOOL setup_merge_file(struct filter_struct *ex, |
b6f06b8e | 334 | struct filter_list_struct *lp) |
6dfd07d0 WD |
335 | { |
336 | char buf[MAXPATHLEN]; | |
337 | char *x, *y, *pat = ex->pattern; | |
338 | unsigned int len; | |
339 | ||
340 | if (!(x = parse_merge_name(pat, NULL, 0)) || *x != '/') | |
341 | return 0; | |
342 | ||
343 | y = strrchr(x, '/'); | |
344 | *y = '\0'; | |
345 | ex->pattern = strdup(y+1); | |
346 | if (!*x) | |
347 | x = "/"; | |
348 | if (*x == '/') | |
349 | strlcpy(buf, x, MAXPATHLEN); | |
350 | else | |
351 | pathjoin(buf, MAXPATHLEN, dirbuf, x); | |
352 | ||
353 | len = clean_fname(buf, 1); | |
354 | if (len != 1 && len < MAXPATHLEN-1) { | |
355 | buf[len++] = '/'; | |
356 | buf[len] = '\0'; | |
357 | } | |
358 | /* This ensures that the specified dir is a parent of the transfer. */ | |
359 | for (x = buf, y = dirbuf; *x && *x == *y; x++, y++) {} | |
360 | if (*x) | |
361 | y += strlen(y); /* nope -- skip the scan */ | |
362 | ||
363 | parent_dirscan = True; | |
364 | while (*y) { | |
365 | char save[MAXPATHLEN]; | |
366 | strlcpy(save, y, MAXPATHLEN); | |
367 | *y = '\0'; | |
368 | dirbuf_len = y - dirbuf; | |
369 | strlcpy(x, ex->pattern, MAXPATHLEN - (x - buf)); | |
b6f06b8e | 370 | add_filter_file(lp, buf, ex->match_flags, XFLG_ANCHORED2ABS); |
6dfd07d0 WD |
371 | if (ex->match_flags & MATCHFLG_NO_INHERIT) |
372 | lp->head = NULL; | |
373 | lp->tail = NULL; | |
374 | strlcpy(y, save, MAXPATHLEN); | |
375 | while ((*x++ = *y++) != '/') {} | |
376 | } | |
377 | parent_dirscan = False; | |
378 | free(pat); | |
379 | return 1; | |
380 | } | |
381 | ||
382 | /* Each time rsync changes to a new directory it call this function to | |
383 | * handle all the per-dir merge-files. The "dir" value is the current path | |
384 | * relative to curr_dir (which might not be null-terminated). We copy it | |
385 | * into dirbuf so that we can easily append a file name on the end. */ | |
7842418b | 386 | void *push_local_filters(const char *dir, unsigned int dirlen) |
6dfd07d0 | 387 | { |
7842418b | 388 | struct filter_list_struct *ap, *push; |
6dfd07d0 WD |
389 | int i; |
390 | ||
7842418b | 391 | set_filter_dir(dir, dirlen); |
6dfd07d0 | 392 | |
a2b371cd WD |
393 | if (!mergelist_cnt) |
394 | return NULL; | |
395 | ||
7842418b | 396 | push = new_array(struct filter_list_struct, mergelist_cnt); |
6dfd07d0 | 397 | if (!push) |
7842418b | 398 | out_of_memory("push_local_filters"); |
6dfd07d0 WD |
399 | |
400 | for (i = 0, ap = push; i < mergelist_cnt; i++) { | |
401 | memcpy(ap++, mergelist_parents[i]->u.mergelist, | |
7842418b | 402 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
403 | } |
404 | ||
7842418b | 405 | /* Note: add_filter_file() might increase mergelist_cnt, so keep |
6dfd07d0 WD |
406 | * this loop separate from the above loop. */ |
407 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b WD |
408 | struct filter_struct *ex = mergelist_parents[i]; |
409 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
410 | |
411 | if (verbose > 2) { | |
7842418b | 412 | rprintf(FINFO, "[%s] pushing filter list%s\n", |
6dfd07d0 WD |
413 | who_am_i(), lp->debug_type); |
414 | } | |
415 | ||
416 | lp->tail = NULL; /* Switch any local rules to inherited. */ | |
417 | if (ex->match_flags & MATCHFLG_NO_INHERIT) | |
418 | lp->head = NULL; | |
6dfd07d0 WD |
419 | |
420 | if (ex->match_flags & MATCHFLG_FINISH_SETUP) { | |
421 | ex->match_flags &= ~MATCHFLG_FINISH_SETUP; | |
b6f06b8e | 422 | if (setup_merge_file(ex, lp)) |
7842418b | 423 | set_filter_dir(dir, dirlen); |
6dfd07d0 WD |
424 | } |
425 | ||
426 | if (strlcpy(dirbuf + dirbuf_len, ex->pattern, | |
b6f06b8e WD |
427 | MAXPATHLEN - dirbuf_len) < MAXPATHLEN - dirbuf_len) { |
428 | add_filter_file(lp, dirbuf, ex->match_flags, | |
429 | XFLG_ANCHORED2ABS); | |
430 | } else { | |
6dfd07d0 WD |
431 | io_error |= IOERR_GENERAL; |
432 | rprintf(FINFO, | |
7842418b | 433 | "cannot add local filter rules in long-named directory: %s\n", |
6dfd07d0 WD |
434 | full_fname(dirbuf)); |
435 | } | |
436 | dirbuf[dirbuf_len] = '\0'; | |
437 | } | |
438 | ||
439 | return (void*)push; | |
440 | } | |
441 | ||
7842418b | 442 | void pop_local_filters(void *mem) |
6dfd07d0 | 443 | { |
7842418b | 444 | struct filter_list_struct *ap, *pop = (struct filter_list_struct*)mem; |
6dfd07d0 WD |
445 | int i; |
446 | ||
447 | for (i = mergelist_cnt; i-- > 0; ) { | |
7842418b WD |
448 | struct filter_struct *ex = mergelist_parents[i]; |
449 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
450 | |
451 | if (verbose > 2) { | |
7842418b | 452 | rprintf(FINFO, "[%s] popping filter list%s\n", |
6dfd07d0 WD |
453 | who_am_i(), lp->debug_type); |
454 | } | |
455 | ||
7842418b | 456 | clear_filter_list(lp); |
6dfd07d0 WD |
457 | } |
458 | ||
a2b371cd WD |
459 | if (!pop) |
460 | return; | |
461 | ||
6dfd07d0 WD |
462 | for (i = 0, ap = pop; i < mergelist_cnt; i++) { |
463 | memcpy(mergelist_parents[i]->u.mergelist, ap++, | |
7842418b | 464 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
465 | } |
466 | ||
467 | free(pop); | |
5be7fa93 WD |
468 | } |
469 | ||
7842418b | 470 | static int rule_matches(char *name, struct filter_struct *ex, int name_is_dir) |
2b6b4d53 | 471 | { |
9f186578 | 472 | char *p, full_name[MAXPATHLEN]; |
0f2ac855 | 473 | int match_start = 0; |
f2ae9e85 | 474 | int ret_match = ex->match_flags & MATCHFLG_NEGATE ? 0 : 1; |
2b6b4d53 AT |
475 | char *pattern = ex->pattern; |
476 | ||
9f186578 WD |
477 | if (!*name) |
478 | return 0; | |
479 | ||
170381c0 WD |
480 | /* If the pattern does not have any slashes AND it does not have |
481 | * a "**" (which could match a slash), then we just match the | |
482 | * name portion of the path. */ | |
6dfd07d0 | 483 | if (!ex->u.slash_cnt && !(ex->match_flags & MATCHFLG_WILD2)) { |
5be7fa93 WD |
484 | if ((p = strrchr(name,'/')) != NULL) |
485 | name = p+1; | |
486 | } | |
9f186578 | 487 | else if (ex->match_flags & MATCHFLG_ABS_PATH && *name != '/' |
6dfd07d0 WD |
488 | && curr_dir_len > module_dirlen + 1) { |
489 | pathjoin(full_name, sizeof full_name, | |
490 | curr_dir + module_dirlen + 1, name); | |
5be7fa93 WD |
491 | name = full_name; |
492 | } | |
2b6b4d53 | 493 | |
5e972dcf | 494 | if (ex->match_flags & MATCHFLG_DIRECTORY && !name_is_dir) |
f2ae9e85 | 495 | return !ret_match; |
2b6b4d53 | 496 | |
170381c0 | 497 | if (*pattern == '/') { |
2b6b4d53 AT |
498 | match_start = 1; |
499 | pattern++; | |
170381c0 WD |
500 | if (*name == '/') |
501 | name++; | |
2b6b4d53 AT |
502 | } |
503 | ||
170381c0 | 504 | if (ex->match_flags & MATCHFLG_WILD) { |
170381c0 WD |
505 | /* A non-anchored match with an infix slash and no "**" |
506 | * needs to match the last slash_cnt+1 name elements. */ | |
6dfd07d0 | 507 | if (!match_start && ex->u.slash_cnt |
5e972dcf | 508 | && !(ex->match_flags & MATCHFLG_WILD2)) { |
6dfd07d0 | 509 | int cnt = ex->u.slash_cnt + 1; |
170381c0 WD |
510 | for (p = name + strlen(name) - 1; p >= name; p--) { |
511 | if (*p == '/' && !--cnt) | |
512 | break; | |
513 | } | |
514 | name = p+1; | |
515 | } | |
fe332038 | 516 | if (wildmatch(pattern, name)) |
f2ae9e85 | 517 | return ret_match; |
170381c0 WD |
518 | if (ex->match_flags & MATCHFLG_WILD2_PREFIX) { |
519 | /* If the **-prefixed pattern has a '/' as the next | |
520 | * character, then try to match the rest of the | |
521 | * pattern at the root. */ | |
fe332038 | 522 | if (pattern[2] == '/' && wildmatch(pattern+3, name)) |
f2ae9e85 | 523 | return ret_match; |
c36cd317 | 524 | } |
170381c0 WD |
525 | else if (!match_start && ex->match_flags & MATCHFLG_WILD2) { |
526 | /* A non-anchored match with an infix or trailing "**" | |
527 | * (but not a prefixed "**") needs to try matching | |
528 | * after every slash. */ | |
529 | while ((name = strchr(name, '/')) != NULL) { | |
530 | name++; | |
fe332038 | 531 | if (wildmatch(pattern, name)) |
f2ae9e85 | 532 | return ret_match; |
170381c0 WD |
533 | } |
534 | } | |
535 | } else if (match_start) { | |
536 | if (strcmp(name,pattern) == 0) | |
f2ae9e85 | 537 | return ret_match; |
2b6b4d53 AT |
538 | } else { |
539 | int l1 = strlen(name); | |
ea2111d1 | 540 | int l2 = strlen(pattern); |
0f2ac855 | 541 | if (l2 <= l1 && |
ea2111d1 | 542 | strcmp(name+(l1-l2),pattern) == 0 && |
170381c0 | 543 | (l1==l2 || name[l1-(l2+1)] == '/')) { |
f2ae9e85 | 544 | return ret_match; |
c36cd317 | 545 | } |
2b6b4d53 AT |
546 | } |
547 | ||
f2ae9e85 | 548 | return !ret_match; |
c627d613 AT |
549 | } |
550 | ||
551 | ||
7842418b WD |
552 | static void report_filter_result(char const *name, |
553 | struct filter_struct const *ent, | |
554 | int name_is_dir, const char *type) | |
d567322f | 555 | { |
0f2ac855 | 556 | /* If a trailing slash is present to match only directories, |
bf39270e | 557 | * then it is stripped out by filter_rule. So as a special |
0f2ac855 WD |
558 | * case we add it back in here. */ |
559 | ||
ea847c62 | 560 | if (verbose >= 2) { |
6dfd07d0 | 561 | rprintf(FINFO, "[%s] %scluding %s %s because of pattern %s%s%s\n", |
5e972dcf WD |
562 | who_am_i(), |
563 | ent->match_flags & MATCHFLG_INCLUDE ? "in" : "ex", | |
6dfd07d0 WD |
564 | name_is_dir ? "directory" : "file", name, ent->pattern, |
565 | ent->match_flags & MATCHFLG_DIRECTORY ? "/" : "", type); | |
ea847c62 | 566 | } |
d567322f MP |
567 | } |
568 | ||
569 | ||
570 | /* | |
a6536635 WD |
571 | * Return -1 if file "name" is defined to be excluded by the specified |
572 | * exclude list, 1 if it is included, and 0 if it was not matched. | |
d567322f | 573 | */ |
7842418b | 574 | int check_filter(struct filter_list_struct *listp, char *name, int name_is_dir) |
c627d613 | 575 | { |
7842418b | 576 | struct filter_struct *ent; |
c627d613 | 577 | |
b2aa573b | 578 | for (ent = listp->head; ent; ent = ent->next) { |
6dfd07d0 | 579 | if (ent->match_flags & MATCHFLG_PERDIR_MERGE) { |
7842418b WD |
580 | int rc = check_filter(ent->u.mergelist, name, |
581 | name_is_dir); | |
6dfd07d0 WD |
582 | if (rc) |
583 | return rc; | |
584 | continue; | |
585 | } | |
7842418b WD |
586 | if (rule_matches(name, ent, name_is_dir)) { |
587 | report_filter_result(name, ent, name_is_dir, | |
67340e95 | 588 | listp->debug_type); |
5e972dcf | 589 | return ent->match_flags & MATCHFLG_INCLUDE ? 1 : -1; |
0f2ac855 | 590 | } |
2b6b4d53 | 591 | } |
c627d613 | 592 | |
2b6b4d53 | 593 | return 0; |
c627d613 AT |
594 | } |
595 | ||
596 | ||
f8f72644 WD |
597 | /* Get the next include/exclude arg from the string. The token will not |
598 | * be '\0' terminated, so use the returned length to limit the string. | |
599 | * Also, be sure to add this length to the returned pointer before passing | |
e425fbe8 | 600 | * it back to ask for the next token. This routine parses the "!" (list- |
b6f06b8e WD |
601 | * clearing) token and (depending on the mflags) the various prefixes. |
602 | * The *mflags_ptr value will be set on exit to the new MATCHFLG_* bits | |
603 | * for the current token. */ | |
604 | static const char *get_filter_tok(const char *p, unsigned mflags, int xflags, | |
605 | unsigned int *len_ptr, unsigned int *mflags_ptr) | |
f8f72644 | 606 | { |
abca4eba | 607 | const unsigned char *s = (const unsigned char *)p; |
b6f06b8e | 608 | unsigned int len, new_mflags; |
6dfd07d0 | 609 | int empty_pat_is_OK = 0; |
f8f72644 | 610 | |
b6f06b8e | 611 | if (mflags & MATCHFLG_WORD_SPLIT) { |
96d3590a WD |
612 | /* Skip over any initial whitespace. */ |
613 | while (isspace(*s)) | |
f8f72644 | 614 | s++; |
6dfd07d0 | 615 | /* Update to point to real start of rule. */ |
abca4eba | 616 | p = (const char *)s; |
f8f72644 | 617 | } |
6dfd07d0 WD |
618 | if (!*s) |
619 | return NULL; | |
620 | ||
b6f06b8e WD |
621 | new_mflags = mflags & MATCHFLGS_FROM_CONTAINER; |
622 | ||
623 | /* Figure out what kind of a filter rule "s" is pointing at. Note | |
624 | * that if MATCHFLG_NO_PREFIXES is set, the rule is either an include | |
625 | * or an exclude based on the inheritance of the MATCHFLG_INCLUDE | |
626 | * flag (above). XFLG_OLD_PREFIXES indicates a compatibility mode | |
627 | * for old include/exclude patterns where just "+ " and "- " are | |
628 | * allowed as optional prefixes. */ | |
629 | if (mflags & MATCHFLG_NO_PREFIXES) { | |
630 | if (*s == '!') | |
631 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ | |
632 | } else if (xflags & XFLG_OLD_PREFIXES) { | |
633 | if (*s == '-' && s[1] == ' ') { | |
634 | new_mflags &= ~MATCHFLG_INCLUDE; | |
635 | s += 2; | |
636 | } else if (*s == '+' && s[1] == ' ') { | |
637 | new_mflags |= MATCHFLG_INCLUDE; | |
638 | s += 2; | |
639 | } | |
640 | if (*s == '!') | |
641 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ | |
642 | } else { | |
6dfd07d0 WD |
643 | char *mods = ""; |
644 | switch (*s) { | |
645 | case ':': | |
b6f06b8e WD |
646 | new_mflags |= MATCHFLG_PERDIR_MERGE |
647 | | MATCHFLG_FINISH_SETUP; | |
6dfd07d0 WD |
648 | /* FALL THROUGH */ |
649 | case '.': | |
b6f06b8e WD |
650 | new_mflags |= MATCHFLG_MERGE_FILE; |
651 | mods = MODIFIERS_INCL_EXCL MODIFIERS_MERGE_FILE; | |
6dfd07d0 WD |
652 | break; |
653 | case '+': | |
b6f06b8e | 654 | new_mflags |= MATCHFLG_INCLUDE; |
bf39270e | 655 | /* FALL THROUGH */ |
6dfd07d0 | 656 | case '-': |
b6f06b8e | 657 | mods = MODIFIERS_INCL_EXCL; |
6dfd07d0 WD |
658 | break; |
659 | case '!': | |
b6f06b8e | 660 | new_mflags |= MATCHFLG_CLEAR_LIST; |
6dfd07d0 WD |
661 | mods = NULL; |
662 | break; | |
663 | default: | |
664 | rprintf(FERROR, "Unknown filter rule: %s\n", p); | |
665 | exit_cleanup(RERR_SYNTAX); | |
666 | } | |
bf39270e | 667 | while (mods && *++s && *s != ' ' && *s != '_') { |
6dfd07d0 | 668 | if (strchr(mods, *s) == NULL) { |
b6f06b8e | 669 | if (mflags & MATCHFLG_WORD_SPLIT && isspace(*s)) { |
6dfd07d0 WD |
670 | s--; |
671 | break; | |
672 | } | |
b6f06b8e | 673 | invalid: |
6dfd07d0 | 674 | rprintf(FERROR, |
b6f06b8e | 675 | "invalid modifier sequence at '%c' in filter rule: %s\n", |
6dfd07d0 WD |
676 | *s, p); |
677 | exit_cleanup(RERR_SYNTAX); | |
678 | } | |
679 | switch (*s) { | |
680 | case '-': | |
b6f06b8e WD |
681 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
682 | goto invalid; | |
683 | new_mflags |= MATCHFLG_NO_PREFIXES; | |
6dfd07d0 WD |
684 | break; |
685 | case '+': | |
b6f06b8e WD |
686 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
687 | goto invalid; | |
688 | new_mflags |= MATCHFLG_NO_PREFIXES | |
689 | | MATCHFLG_INCLUDE; | |
6dfd07d0 | 690 | break; |
bf39270e | 691 | case '/': |
b6f06b8e | 692 | new_mflags |= MATCHFLG_ABS_PATH; |
bf39270e | 693 | break; |
f2ae9e85 | 694 | case '!': |
b6f06b8e | 695 | new_mflags |= MATCHFLG_NEGATE; |
f2ae9e85 | 696 | break; |
6dfd07d0 | 697 | case 'C': |
b6f06b8e WD |
698 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
699 | goto invalid; | |
6dfd07d0 | 700 | empty_pat_is_OK = 1; |
b6f06b8e WD |
701 | new_mflags |= MATCHFLG_NO_PREFIXES |
702 | | MATCHFLG_WORD_SPLIT | |
703 | | MATCHFLG_NO_INHERIT; | |
6dfd07d0 WD |
704 | break; |
705 | case 'e': | |
b6f06b8e | 706 | new_mflags |= MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
707 | break; |
708 | case 'n': | |
b6f06b8e | 709 | new_mflags |= MATCHFLG_NO_INHERIT; |
6dfd07d0 | 710 | break; |
0b2901b7 | 711 | case 'w': |
b6f06b8e | 712 | new_mflags |= MATCHFLG_WORD_SPLIT; |
6dfd07d0 WD |
713 | break; |
714 | } | |
715 | } | |
716 | if (*s) | |
717 | s++; | |
6dfd07d0 WD |
718 | } |
719 | ||
b6f06b8e | 720 | if (mflags & MATCHFLG_WORD_SPLIT) { |
96d3590a WD |
721 | const unsigned char *cp = s; |
722 | /* Token ends at whitespace or the end of the string. */ | |
723 | while (!isspace(*cp) && *cp != '\0') | |
724 | cp++; | |
725 | len = cp - s; | |
726 | } else | |
0eeb1cf8 | 727 | len = strlen((char*)s); |
96d3590a | 728 | |
b6f06b8e WD |
729 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
730 | if (!(xflags & XFLG_OLD_PREFIXES) && len) { | |
6dfd07d0 WD |
731 | rprintf(FERROR, |
732 | "'!' rule has trailing characters: %s\n", p); | |
733 | exit_cleanup(RERR_SYNTAX); | |
734 | } | |
735 | if (len > 1) | |
b6f06b8e | 736 | new_mflags &= ~MATCHFLG_CLEAR_LIST; |
6dfd07d0 WD |
737 | } else if (!len && !empty_pat_is_OK) { |
738 | rprintf(FERROR, "unexpected end of filter rule: %s\n", p); | |
739 | exit_cleanup(RERR_SYNTAX); | |
740 | } | |
741 | ||
96d3590a | 742 | *len_ptr = len; |
b6f06b8e | 743 | *mflags_ptr = new_mflags; |
96d3590a | 744 | return (const char *)s; |
f8f72644 WD |
745 | } |
746 | ||
747 | ||
7842418b | 748 | void add_filter(struct filter_list_struct *listp, const char *pattern, |
b6f06b8e | 749 | unsigned mflags, int xflags) |
c627d613 | 750 | { |
b6f06b8e | 751 | unsigned int pat_len, new_mflags; |
6dfd07d0 | 752 | const char *cp, *p; |
5be7fa93 | 753 | |
f8f72644 | 754 | if (!pattern) |
5e7dbaca | 755 | return; |
f8f72644 | 756 | |
b2aa573b | 757 | while (1) { |
6dfd07d0 | 758 | /* Remember that the returned string is NOT '\0' terminated! */ |
b6f06b8e WD |
759 | cp = get_filter_tok(pattern, mflags, xflags, |
760 | &pat_len, &new_mflags); | |
6dfd07d0 | 761 | if (!cp) |
b2aa573b | 762 | break; |
6dfd07d0 | 763 | if (pat_len >= MAXPATHLEN) { |
7842418b | 764 | rprintf(FERROR, "discarding over-long filter: %s\n", |
6dfd07d0 WD |
765 | cp); |
766 | continue; | |
767 | } | |
768 | pattern = cp + pat_len; | |
5e972dcf | 769 | |
b6f06b8e | 770 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
de91e757 WD |
771 | if (verbose > 2) { |
772 | rprintf(FINFO, | |
7842418b | 773 | "[%s] clearing filter list%s\n", |
de91e757 WD |
774 | who_am_i(), listp->debug_type); |
775 | } | |
7842418b | 776 | clear_filter_list(listp); |
5e972dcf WD |
777 | continue; |
778 | } | |
b2aa573b | 779 | |
6dfd07d0 WD |
780 | if (!pat_len) { |
781 | cp = ".cvsignore"; | |
782 | pat_len = 10; | |
783 | } | |
5e972dcf | 784 | |
b6f06b8e | 785 | if (new_mflags & MATCHFLG_MERGE_FILE) { |
6dfd07d0 | 786 | unsigned int len = pat_len; |
b6f06b8e | 787 | if (new_mflags & MATCHFLG_EXCLUDE_SELF) { |
6dfd07d0 WD |
788 | const char *name = strrchr(cp, '/'); |
789 | if (name) | |
790 | len -= ++name - cp; | |
791 | else | |
792 | name = cp; | |
bf39270e | 793 | filter_rule(listp, name, len, 0, 0); |
b6f06b8e | 794 | new_mflags &= ~MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
795 | len = pat_len; |
796 | } | |
b6f06b8e | 797 | if (new_mflags & MATCHFLG_PERDIR_MERGE) { |
6dfd07d0 | 798 | if (parent_dirscan) { |
b6f06b8e WD |
799 | if (!(p = parse_merge_name(cp, &len, |
800 | module_dirlen))) | |
6dfd07d0 | 801 | continue; |
b6f06b8e WD |
802 | filter_rule(listp, p, len, |
803 | new_mflags, 0); | |
6dfd07d0 WD |
804 | continue; |
805 | } | |
806 | } else { | |
6dfd07d0 WD |
807 | if (!(p = parse_merge_name(cp, &len, 0))) |
808 | continue; | |
b6f06b8e WD |
809 | add_filter_file(listp, p, new_mflags, |
810 | XFLG_FATAL_ERRORS); | |
6dfd07d0 WD |
811 | continue; |
812 | } | |
f8f72644 | 813 | } |
6dfd07d0 | 814 | |
b6f06b8e | 815 | filter_rule(listp, cp, pat_len, new_mflags, xflags); |
8c35542d | 816 | } |
c627d613 AT |
817 | } |
818 | ||
c627d613 | 819 | |
7842418b | 820 | void add_filter_file(struct filter_list_struct *listp, const char *fname, |
b6f06b8e | 821 | unsigned mflags, int xflags) |
c627d613 | 822 | { |
5e7dbaca | 823 | FILE *fp; |
7842418b | 824 | char line[MAXPATHLEN+MAX_RULE_PREFIX+1]; /* +1 for trailing slash. */ |
7cd72c79 | 825 | char *eob = line + sizeof line - 1; |
b6f06b8e | 826 | int word_split = mflags & MATCHFLG_WORD_SPLIT; |
ccdff3eb | 827 | |
5be7fa93 WD |
828 | if (!fname || !*fname) |
829 | return; | |
830 | ||
5a016db9 WD |
831 | if (*fname != '-' || fname[1] || am_server) { |
832 | if (server_filter_list.head) { | |
833 | strlcpy(line, fname, sizeof line); | |
834 | clean_fname(line, 1); | |
835 | if (check_filter(&server_filter_list, line, 0) < 0) | |
836 | fp = NULL; | |
837 | else | |
838 | fp = fopen(line, "rb"); | |
839 | } else | |
840 | fp = fopen(fname, "rb"); | |
841 | } else | |
5e7dbaca | 842 | fp = stdin; |
bf39270e WD |
843 | |
844 | if (verbose > 2) { | |
b6f06b8e WD |
845 | rprintf(FINFO, "[%s] add_filter_file(%s,%x,%x)%s\n", |
846 | who_am_i(), safe_fname(fname), mflags, xflags, | |
bf39270e WD |
847 | fp ? "" : " [not found]"); |
848 | } | |
849 | ||
5e7dbaca | 850 | if (!fp) { |
f8f72644 | 851 | if (xflags & XFLG_FATAL_ERRORS) { |
a039749b | 852 | rsyserr(FERROR, errno, |
6dfd07d0 | 853 | "failed to open %sclude file %s", |
b6f06b8e | 854 | mflags & MATCHFLG_INCLUDE ? "in" : "ex", |
6dfd07d0 | 855 | safe_fname(fname)); |
65417579 | 856 | exit_cleanup(RERR_FILEIO); |
2b6b4d53 | 857 | } |
5be7fa93 | 858 | return; |
2b6b4d53 | 859 | } |
6dfd07d0 WD |
860 | dirbuf[dirbuf_len] = '\0'; |
861 | ||
ccdff3eb | 862 | while (1) { |
5e7dbaca | 863 | char *s = line; |
619d21ff | 864 | int ch, overflow = 0; |
ccdff3eb | 865 | while (1) { |
5e7dbaca WD |
866 | if ((ch = getc(fp)) == EOF) { |
867 | if (ferror(fp) && errno == EINTR) | |
ccdff3eb WD |
868 | continue; |
869 | break; | |
870 | } | |
40d38dc0 WD |
871 | if (word_split && isspace(ch)) |
872 | break; | |
ccdff3eb WD |
873 | if (eol_nulls? !ch : (ch == '\n' || ch == '\r')) |
874 | break; | |
875 | if (s < eob) | |
876 | *s++ = ch; | |
619d21ff WD |
877 | else |
878 | overflow = 1; | |
879 | } | |
880 | if (overflow) { | |
7842418b | 881 | rprintf(FERROR, "discarding over-long filter: %s...\n", line); |
619d21ff | 882 | s = line; |
ccdff3eb WD |
883 | } |
884 | *s = '\0'; | |
7f0feb4d WD |
885 | /* Skip an empty token and (when line parsing) comments. */ |
886 | if (*line && (word_split || (*line != ';' && *line != '#'))) | |
b6f06b8e | 887 | add_filter(listp, line, mflags, xflags); |
5e7dbaca | 888 | if (ch == EOF) |
ccdff3eb | 889 | break; |
2b6b4d53 | 890 | } |
5e7dbaca | 891 | fclose(fp); |
c627d613 AT |
892 | } |
893 | ||
417b5999 WD |
894 | char *get_rule_prefix(int match_flags, const char *pat, unsigned int *plen_ptr) |
895 | { | |
896 | static char buf[MAX_RULE_PREFIX+1]; | |
897 | char *op = buf; | |
898 | ||
899 | if (match_flags & MATCHFLG_PERDIR_MERGE) { | |
900 | *op++ = ':'; | |
901 | if (match_flags & MATCHFLG_WORD_SPLIT) | |
902 | *op++ = 's'; | |
903 | if (match_flags & MATCHFLG_NO_INHERIT) | |
904 | *op++ = 'n'; | |
905 | if (match_flags & MATCHFLG_EXCLUDE_SELF) | |
906 | *op++ = 'e'; | |
907 | if (match_flags & MATCHFLG_NO_PREFIXES) { | |
908 | if (match_flags & MATCHFLG_INCLUDE) | |
909 | *op++ = '+'; | |
910 | else | |
911 | *op++ = '-'; | |
912 | } | |
913 | *op++ = ' '; | |
914 | } else if (match_flags & MATCHFLG_INCLUDE) { | |
915 | *op++ = '+'; | |
916 | *op++ = ' '; | |
917 | } else if (protocol_version >= 29 | |
918 | || ((*pat == '-' || *pat == '+') && pat[1] == ' ')) { | |
919 | *op++ = '-'; | |
920 | *op++ = ' '; | |
921 | } | |
922 | *op = '\0'; | |
923 | if (plen_ptr) | |
924 | *plen_ptr = op - buf; | |
925 | if (op - buf > MAX_RULE_PREFIX) | |
926 | overflow("get_rule_prefix"); | |
927 | return buf; | |
928 | } | |
c627d613 | 929 | |
7842418b | 930 | void send_filter_list(int f) |
c627d613 | 931 | { |
7842418b | 932 | struct filter_struct *ent; |
25cf8893 | 933 | |
353f2724 WD |
934 | /* This is a complete hack - blame Rusty. FIXME! |
935 | * Remove this hack when older rsyncs (below 2.6.4) are gone. */ | |
936 | if (list_only == 1 && !recurse) | |
b6f06b8e | 937 | add_filter(&filter_list, "/*/*", MATCHFLG_NO_PREFIXES, 0); |
2b6b4d53 | 938 | |
7842418b | 939 | for (ent = filter_list.head; ent; ent = ent->next) { |
417b5999 WD |
940 | unsigned int len, plen, dlen; |
941 | char *p; | |
2fb139c1 | 942 | |
417b5999 WD |
943 | len = strlen(ent->pattern); |
944 | if (len == 0 || len >= MAXPATHLEN) | |
5f5be796 | 945 | continue; |
417b5999 WD |
946 | p = get_rule_prefix(ent->match_flags, ent->pattern, &plen); |
947 | if (protocol_version < 29 && *p == ':') { | |
948 | if (strcmp(p, ":sn- ") == 0 | |
949 | && strcmp(ent->pattern, ".cvsignore") == 0) | |
950 | continue; | |
951 | rprintf(FERROR, | |
952 | "remote rsync is too old to understand per-directory merge files.\n"); | |
953 | exit_cleanup(RERR_SYNTAX); | |
5f5be796 | 954 | } |
417b5999 WD |
955 | dlen = ent->match_flags & MATCHFLG_DIRECTORY ? 1 : 0; |
956 | write_int(f, plen + len + dlen); | |
957 | if (plen) | |
958 | write_buf(f, p, plen); | |
959 | write_buf(f, ent->pattern, len); | |
960 | if (dlen) | |
961 | write_byte(f, '/'); | |
0f2ac855 | 962 | } |
2b6b4d53 | 963 | |
a3dbb20a | 964 | write_int(f, 0); |
c627d613 AT |
965 | } |
966 | ||
967 | ||
7842418b | 968 | void recv_filter_list(int f) |
c627d613 | 969 | { |
7842418b | 970 | char line[MAXPATHLEN+MAX_RULE_PREFIX+1]; /* +1 for trailing slash. */ |
b6f06b8e | 971 | unsigned int xflags = protocol_version >= 29 ? 0 : XFLG_OLD_PREFIXES; |
9dd891bb MP |
972 | unsigned int l; |
973 | ||
5f5be796 WD |
974 | while ((l = read_int(f)) != 0) { |
975 | if (l >= sizeof line) | |
7842418b | 976 | overflow("recv_filter_list"); |
5f5be796 | 977 | read_sbuf(f, line, l); |
b6f06b8e | 978 | add_filter(&filter_list, line, 0, xflags); |
651443a7 | 979 | } |
651443a7 DD |
980 | } |
981 | ||
0f2ac855 | 982 | |
f8f72644 WD |
983 | static char default_cvsignore[] = |
984 | /* These default ignored items come from the CVS manual. */ | |
985 | "RCS SCCS CVS CVS.adm RCSLOG cvslog.* tags TAGS" | |
986 | " .make.state .nse_depinfo *~ #* .#* ,* _$* *$" | |
987 | " *.old *.bak *.BAK *.orig *.rej .del-*" | |
988 | " *.a *.olb *.o *.obj *.so *.exe" | |
989 | " *.Z *.elc *.ln core" | |
990 | /* The rest we added to suit ourself. */ | |
991 | " .svn/"; | |
c627d613 AT |
992 | |
993 | void add_cvs_excludes(void) | |
994 | { | |
b6f06b8e | 995 | static unsigned cvs_mflags = MATCHFLG_WORD_SPLIT|MATCHFLG_NO_PREFIXES; |
2b6b4d53 | 996 | char fname[MAXPATHLEN]; |
bf39270e WD |
997 | char *p = module_id >= 0 && lp_use_chroot(module_id) |
998 | ? "/" : getenv("HOME"); | |
0f2ac855 | 999 | |
b6f06b8e WD |
1000 | add_filter(&filter_list, ":C", 0, 0); |
1001 | add_filter(&filter_list, default_cvsignore, cvs_mflags, 0); | |
c627d613 | 1002 | |
b6f06b8e WD |
1003 | if (p && pathjoin(fname, MAXPATHLEN, p, ".cvsignore") < MAXPATHLEN) |
1004 | add_filter_file(&filter_list, fname, cvs_mflags, 0); | |
c627d613 | 1005 | |
b6f06b8e | 1006 | add_filter(&filter_list, getenv("CVSIGNORE"), cvs_mflags, 0); |
c627d613 | 1007 | } |