Commit | Line | Data |
---|---|---|
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; | |
40d38dc0 WD |
30 | extern int eol_nulls; |
31 | extern int list_only; | |
32 | extern int recurse; | |
6dfd07d0 WD |
33 | extern int io_error; |
34 | extern int sanitize_paths; | |
35 | extern int protocol_version; | |
40d38dc0 WD |
36 | |
37 | extern char curr_dir[]; | |
6dfd07d0 WD |
38 | extern unsigned int curr_dir_len; |
39 | extern unsigned int module_dirlen; | |
c627d613 | 40 | |
67340e95 | 41 | struct exclude_list_struct exclude_list = { 0, 0, "" }; |
67340e95 | 42 | struct exclude_list_struct server_exclude_list = { 0, 0, "server " }; |
c627d613 | 43 | |
6dfd07d0 WD |
44 | /* Need room enough for ":MODS " prefix plus some room to grow. */ |
45 | #define MAX_EXCLUDE_PREFIX (16) | |
46 | ||
47 | /* The dirbuf is set by push_local_excludes() to the current subdirectory | |
48 | * relative to curr_dir that is being processed. The path always has a | |
49 | * trailing slash appended, and the variable dirbuf_len contains the length | |
50 | * of this path prefix. The path is always absolute. */ | |
51 | static char dirbuf[MAXPATHLEN+1]; | |
52 | static unsigned int dirbuf_len = 0; | |
53 | static int dirbuf_depth; | |
54 | ||
55 | /* This is True when we're scanning parent dirs for per-dir merge-files. */ | |
56 | static BOOL parent_dirscan = False; | |
57 | ||
58 | /* This array contains a list of all the currently active per-dir merge | |
59 | * files. This makes it easier to save the appropriate values when we | |
60 | * "push" down into each subdirectory. */ | |
61 | static struct exclude_struct **mergelist_parents; | |
62 | static int mergelist_cnt = 0; | |
63 | static int mergelist_size = 0; | |
64 | ||
65 | /* Each exclude_list_struct describes a singly-linked list by keeping track | |
66 | * of both the head and tail pointers. The list is slightly unusual in that | |
67 | * a parent-dir's content can be appended to the end of the local list in a | |
68 | * special way: the last item in the local list has its "next" pointer set | |
69 | * to point to the inherited list, but the local list's tail pointer points | |
70 | * at the end of the local list. Thus, if the local list is empty, the head | |
71 | * will be pointing at the inherited content but the tail will be NULL. To | |
72 | * help you visualize this, here are the possible list arrangements: | |
73 | * | |
74 | * Completely Empty Local Content Only | |
75 | * ================================== ==================================== | |
76 | * head -> NULL head -> Local1 -> Local2 -> NULL | |
77 | * tail -> NULL tail -------------^ | |
78 | * | |
79 | * Inherited Content Only Both Local and Inherited Content | |
80 | * ================================== ==================================== | |
81 | * head -> Parent1 -> Parent2 -> NULL head -> L1 -> L2 -> P1 -> P2 -> NULL | |
82 | * tail -> NULL tail ---------^ | |
83 | * | |
84 | * This means that anyone wanting to traverse the whole list to use it just | |
85 | * needs to start at the head and use the "next" pointers until it goes | |
86 | * NULL. To add new local content, we insert the item after the tail item | |
87 | * and update the tail (obviously, if "tail" was NULL, we insert it at the | |
88 | * head). To clear the local list, WE MUST NOT FREE THE INHERITED CONTENT | |
89 | * because it is shared between the current list and our parent list(s). | |
90 | * The easiest way to handle this is to simply truncate the list after the | |
91 | * tail item and then free the local list from the head. When inheriting | |
92 | * the list for a new local dir, we just save off the exclude_list_struct | |
93 | * values (so we can pop back to them later) and set the tail to NULL. | |
94 | */ | |
95 | ||
96 | static void free_exclude(struct exclude_struct *ex) | |
97 | { | |
98 | if (ex->match_flags & MATCHFLG_PERDIR_MERGE) { | |
99 | free(ex->u.mergelist->debug_type); | |
100 | free(ex->u.mergelist); | |
101 | mergelist_cnt--; | |
102 | } | |
103 | free(ex->pattern); | |
104 | free(ex); | |
105 | } | |
106 | ||
107 | /* Build an exclude structure given an exclude pattern. The value in "pat" | |
108 | * is not null-terminated. */ | |
5e972dcf WD |
109 | static void make_exclude(struct exclude_list_struct *listp, const char *pat, |
110 | unsigned int pat_len, unsigned int mflags) | |
c627d613 | 111 | { |
2b6b4d53 | 112 | struct exclude_struct *ret; |
f8f72644 | 113 | const char *cp; |
5e972dcf | 114 | unsigned int ex_len; |
c627d613 | 115 | |
6dfd07d0 WD |
116 | if (verbose > 2) { |
117 | rprintf(FINFO, "[%s] make_exclude(%.*s, %s%s)\n", | |
118 | who_am_i(), (int)pat_len, pat, | |
119 | mflags & MATCHFLG_PERDIR_MERGE ? "per-dir-merge" | |
120 | : mflags & MATCHFLG_INCLUDE ? "include" : "exclude", | |
121 | listp->debug_type); | |
122 | } | |
123 | ||
58cadc86 | 124 | ret = new(struct exclude_struct); |
f8f72644 WD |
125 | if (!ret) |
126 | out_of_memory("make_exclude"); | |
c627d613 | 127 | |
5f5be796 | 128 | memset(ret, 0, sizeof ret[0]); |
2b6b4d53 | 129 | |
6dfd07d0 WD |
130 | if (mflags & MATCHFLG_ABS_PATH) { |
131 | if (*pat != '/') { | |
132 | mflags &= ~MATCHFLG_ABS_PATH; | |
133 | ex_len = 0; | |
134 | } else | |
135 | ex_len = dirbuf_len - module_dirlen - 1; | |
136 | } else | |
f8f72644 WD |
137 | ex_len = 0; |
138 | ret->pattern = new_array(char, ex_len + pat_len + 1); | |
139 | if (!ret->pattern) | |
140 | out_of_memory("make_exclude"); | |
141 | if (ex_len) | |
6dfd07d0 | 142 | memcpy(ret->pattern, dirbuf + module_dirlen, ex_len); |
5e972dcf | 143 | strlcpy(ret->pattern + ex_len, pat, pat_len + 1); |
f8f72644 WD |
144 | pat_len += ex_len; |
145 | ||
146 | if (strpbrk(ret->pattern, "*[?")) { | |
5e972dcf | 147 | mflags |= MATCHFLG_WILD; |
96d3590a | 148 | if ((cp = strstr(ret->pattern, "**")) != NULL) { |
5e972dcf | 149 | mflags |= MATCHFLG_WILD2; |
170381c0 | 150 | /* If the pattern starts with **, note that. */ |
96d3590a | 151 | if (cp == ret->pattern) |
5e972dcf | 152 | mflags |= MATCHFLG_WILD2_PREFIX; |
0f2ac855 | 153 | } |
2bca43f6 | 154 | } |
c627d613 | 155 | |
5be7fa93 WD |
156 | if (pat_len > 1 && ret->pattern[pat_len-1] == '/') { |
157 | ret->pattern[pat_len-1] = 0; | |
5e972dcf | 158 | mflags |= MATCHFLG_DIRECTORY; |
2b6b4d53 | 159 | } |
c627d613 | 160 | |
6dfd07d0 WD |
161 | if (mflags & MATCHFLG_PERDIR_MERGE) { |
162 | struct exclude_list_struct *lp; | |
163 | unsigned int len; | |
164 | int i; | |
165 | ||
166 | if ((cp = strrchr(ret->pattern, '/')) != NULL) | |
167 | cp++; | |
168 | else | |
169 | cp = ret->pattern; | |
170 | ||
171 | /* If the local merge file was already mentioned, don't | |
172 | * add it again. */ | |
173 | for (i = 0; i < mergelist_cnt; i++) { | |
174 | struct exclude_struct *ex = mergelist_parents[i]; | |
175 | const char *s = strrchr(ex->pattern, '/'); | |
176 | if (s) | |
177 | s++; | |
178 | else | |
179 | s = ex->pattern; | |
180 | len = strlen(s); | |
181 | if (len == pat_len - (cp - ret->pattern) | |
182 | && memcmp(s, cp, len) == 0) { | |
183 | free_exclude(ret); | |
184 | return; | |
185 | } | |
186 | } | |
187 | ||
188 | if (!(lp = new_array(struct exclude_list_struct, 1))) | |
189 | out_of_memory("make_exclude"); | |
190 | lp->head = lp->tail = NULL; | |
191 | if (asprintf(&lp->debug_type, " (per-dir %s)", cp) < 0) | |
192 | out_of_memory("make_exclude"); | |
193 | ret->u.mergelist = lp; | |
194 | ||
195 | if (mergelist_cnt == mergelist_size) { | |
196 | mergelist_size += 5; | |
197 | mergelist_parents = realloc_array(mergelist_parents, | |
198 | struct exclude_struct *, | |
199 | mergelist_size); | |
200 | if (!mergelist_parents) | |
201 | out_of_memory("make_exclude"); | |
202 | } | |
203 | mergelist_parents[mergelist_cnt++] = ret; | |
204 | } else { | |
205 | for (cp = ret->pattern; (cp = strchr(cp, '/')) != NULL; cp++) | |
206 | ret->u.slash_cnt++; | |
207 | } | |
0944563e | 208 | |
c1b29492 WD |
209 | ret->match_flags = mflags; |
210 | ||
6dfd07d0 WD |
211 | if (!listp->tail) { |
212 | ret->next = listp->head; | |
b2aa573b | 213 | listp->head = listp->tail = ret; |
6dfd07d0 WD |
214 | } else { |
215 | ret->next = listp->tail->next; | |
b2aa573b WD |
216 | listp->tail->next = ret; |
217 | listp->tail = ret; | |
218 | } | |
2b6b4d53 AT |
219 | } |
220 | ||
6dfd07d0 | 221 | static void clear_exclude_list(struct exclude_list_struct *listp) |
2b6b4d53 | 222 | { |
6dfd07d0 WD |
223 | if (listp->tail) { |
224 | struct exclude_struct *ent, *next; | |
225 | /* Truncate any inherited items from the local list. */ | |
226 | listp->tail->next = NULL; | |
227 | /* Now free everything that is left. */ | |
228 | for (ent = listp->head; ent; ent = next) { | |
229 | next = ent->next; | |
230 | free_exclude(ent); | |
231 | } | |
232 | } | |
233 | ||
234 | listp->head = listp->tail = NULL; | |
2b6b4d53 | 235 | } |
c627d613 | 236 | |
6dfd07d0 WD |
237 | /* This returns an expanded (absolute) filename for the merge-file name if |
238 | * the name has any slashes in it OR if the parent_dirscan var is True; | |
239 | * otherwise it returns the original merge_file name. If the len_ptr value | |
240 | * is non-NULL the merge_file name is limited by the referenced length | |
241 | * value and will be updated with the length of the resulting name. We | |
242 | * always return a name that is null terminated, even if the merge_file | |
243 | * name was not. */ | |
244 | static char *parse_merge_name(const char *merge_file, unsigned int *len_ptr, | |
245 | unsigned int prefix_skip) | |
5be7fa93 | 246 | { |
6dfd07d0 WD |
247 | static char buf[MAXPATHLEN]; |
248 | char *fn, tmpbuf[MAXPATHLEN]; | |
249 | unsigned int fn_len; | |
250 | ||
251 | if (!parent_dirscan && *merge_file != '/') { | |
252 | /* Return the name unchanged it doesn't have any slashes. */ | |
253 | if (len_ptr) { | |
254 | const char *p = merge_file + *len_ptr; | |
255 | while (--p > merge_file && *p != '/') {} | |
256 | if (p == merge_file) { | |
257 | strlcpy(buf, merge_file, *len_ptr + 1); | |
258 | return buf; | |
259 | } | |
260 | } else if (strchr(merge_file, '/') == NULL) | |
261 | return (char *)merge_file; | |
262 | } | |
5be7fa93 | 263 | |
6dfd07d0 WD |
264 | fn = *merge_file == '/' ? buf : tmpbuf; |
265 | if (sanitize_paths) { | |
266 | const char *r = prefix_skip ? "/" : NULL; | |
267 | /* null-terminate the name if it isn't already */ | |
268 | if (len_ptr && merge_file[*len_ptr]) { | |
269 | char *to = fn == buf ? tmpbuf : buf; | |
270 | strlcpy(to, merge_file, *len_ptr + 1); | |
271 | merge_file = to; | |
272 | } | |
273 | if (!sanitize_path(fn, merge_file, r, dirbuf_depth)) { | |
274 | rprintf(FERROR, "merge-file name overflows: %s\n", | |
275 | merge_file); | |
276 | return NULL; | |
277 | } | |
278 | } else { | |
279 | strlcpy(fn, merge_file, len_ptr ? *len_ptr + 1 : MAXPATHLEN); | |
280 | clean_fname(fn, 1); | |
b2aa573b | 281 | } |
6dfd07d0 WD |
282 | |
283 | fn_len = strlen(fn); | |
284 | if (fn == buf) | |
285 | goto done; | |
286 | ||
287 | if (dirbuf_len + fn_len >= MAXPATHLEN) { | |
288 | rprintf(FERROR, "merge-file name overflows: %s\n", fn); | |
289 | return NULL; | |
290 | } | |
291 | memcpy(buf, dirbuf + prefix_skip, dirbuf_len - prefix_skip); | |
292 | memcpy(buf + dirbuf_len - prefix_skip, fn, fn_len + 1); | |
293 | fn_len = clean_fname(buf, 1); | |
294 | ||
295 | done: | |
296 | if (len_ptr) | |
297 | *len_ptr = fn_len; | |
298 | return buf; | |
299 | } | |
5be7fa93 | 300 | |
6dfd07d0 WD |
301 | /* Sets the dirbuf and dirbuf_len values. */ |
302 | void set_excludes_dir(const char *dir, unsigned int dirlen) | |
303 | { | |
304 | unsigned int len; | |
305 | if (*dir != '/') { | |
306 | memcpy(dirbuf, curr_dir, curr_dir_len); | |
307 | dirbuf[curr_dir_len] = '/'; | |
308 | len = curr_dir_len + 1; | |
309 | if (len + dirlen >= MAXPATHLEN) | |
310 | dirlen = 0; | |
311 | } else | |
312 | len = 0; | |
313 | memcpy(dirbuf + len, dir, dirlen); | |
314 | dirbuf[dirlen + len] = '\0'; | |
315 | dirbuf_len = clean_fname(dirbuf, 1); | |
316 | if (dirbuf_len > 1 && dirbuf[dirbuf_len-1] == '.' | |
317 | && dirbuf[dirbuf_len-2] == '/') | |
318 | dirbuf_len -= 2; | |
319 | if (dirbuf_len != 1) | |
320 | dirbuf[dirbuf_len++] = '/'; | |
321 | dirbuf[dirbuf_len] = '\0'; | |
322 | if (sanitize_paths) | |
323 | dirbuf_depth = count_dir_elements(dirbuf + module_dirlen); | |
324 | } | |
325 | ||
326 | /* This routine takes a per-dir merge-file entry and finishes its setup. | |
327 | * If the name has a path portion then we check to see if it refers to a | |
328 | * parent directory of the first transfer dir. If it does, we scan all the | |
329 | * dirs from that point through the parent dir of the transfer dir looking | |
330 | * for the per-dir merge-file in each one. */ | |
331 | static BOOL setup_merge_file(struct exclude_struct *ex, | |
332 | struct exclude_list_struct *lp, int flags) | |
333 | { | |
334 | char buf[MAXPATHLEN]; | |
335 | char *x, *y, *pat = ex->pattern; | |
336 | unsigned int len; | |
337 | ||
338 | if (!(x = parse_merge_name(pat, NULL, 0)) || *x != '/') | |
339 | return 0; | |
340 | ||
341 | y = strrchr(x, '/'); | |
342 | *y = '\0'; | |
343 | ex->pattern = strdup(y+1); | |
344 | if (!*x) | |
345 | x = "/"; | |
346 | if (*x == '/') | |
347 | strlcpy(buf, x, MAXPATHLEN); | |
348 | else | |
349 | pathjoin(buf, MAXPATHLEN, dirbuf, x); | |
350 | ||
351 | len = clean_fname(buf, 1); | |
352 | if (len != 1 && len < MAXPATHLEN-1) { | |
353 | buf[len++] = '/'; | |
354 | buf[len] = '\0'; | |
355 | } | |
356 | /* This ensures that the specified dir is a parent of the transfer. */ | |
357 | for (x = buf, y = dirbuf; *x && *x == *y; x++, y++) {} | |
358 | if (*x) | |
359 | y += strlen(y); /* nope -- skip the scan */ | |
360 | ||
361 | parent_dirscan = True; | |
362 | while (*y) { | |
363 | char save[MAXPATHLEN]; | |
364 | strlcpy(save, y, MAXPATHLEN); | |
365 | *y = '\0'; | |
366 | dirbuf_len = y - dirbuf; | |
367 | strlcpy(x, ex->pattern, MAXPATHLEN - (x - buf)); | |
368 | add_exclude_file(lp, buf, flags | XFLG_ABS_PATH); | |
369 | if (ex->match_flags & MATCHFLG_NO_INHERIT) | |
370 | lp->head = NULL; | |
371 | lp->tail = NULL; | |
372 | strlcpy(y, save, MAXPATHLEN); | |
373 | while ((*x++ = *y++) != '/') {} | |
374 | } | |
375 | parent_dirscan = False; | |
376 | free(pat); | |
377 | return 1; | |
378 | } | |
379 | ||
380 | /* Each time rsync changes to a new directory it call this function to | |
381 | * handle all the per-dir merge-files. The "dir" value is the current path | |
382 | * relative to curr_dir (which might not be null-terminated). We copy it | |
383 | * into dirbuf so that we can easily append a file name on the end. */ | |
384 | void *push_local_excludes(const char *dir, unsigned int dirlen) | |
385 | { | |
386 | struct exclude_list_struct *ap, *push; | |
387 | int i; | |
388 | ||
389 | set_excludes_dir(dir, dirlen); | |
390 | ||
391 | push = new_array(struct exclude_list_struct, mergelist_cnt); | |
392 | if (!push) | |
393 | out_of_memory("push_local_excludes"); | |
394 | ||
395 | for (i = 0, ap = push; i < mergelist_cnt; i++) { | |
396 | memcpy(ap++, mergelist_parents[i]->u.mergelist, | |
397 | sizeof (struct exclude_list_struct)); | |
398 | } | |
399 | ||
400 | /* Note: add_exclude_file() might increase mergelist_cnt, so keep | |
401 | * this loop separate from the above loop. */ | |
402 | for (i = 0; i < mergelist_cnt; i++) { | |
403 | struct exclude_struct *ex = mergelist_parents[i]; | |
404 | struct exclude_list_struct *lp = ex->u.mergelist; | |
405 | int flags = 0; | |
406 | ||
407 | if (verbose > 2) { | |
408 | rprintf(FINFO, "[%s] pushing exclude list%s\n", | |
409 | who_am_i(), lp->debug_type); | |
410 | } | |
411 | ||
412 | lp->tail = NULL; /* Switch any local rules to inherited. */ | |
413 | if (ex->match_flags & MATCHFLG_NO_INHERIT) | |
414 | lp->head = NULL; | |
415 | if (ex->match_flags & MATCHFLG_WORD_SPLIT) | |
416 | flags |= XFLG_WORD_SPLIT; | |
417 | if (ex->match_flags & MATCHFLG_NO_PREFIXES) | |
418 | flags |= XFLG_NO_PREFIXES; | |
419 | if (ex->match_flags & MATCHFLG_INCLUDE) | |
420 | flags |= XFLG_DEF_INCLUDE; | |
421 | else if (ex->match_flags & MATCHFLG_NO_PREFIXES) | |
422 | flags |= XFLG_DEF_EXCLUDE; | |
423 | ||
424 | if (ex->match_flags & MATCHFLG_FINISH_SETUP) { | |
425 | ex->match_flags &= ~MATCHFLG_FINISH_SETUP; | |
426 | if (setup_merge_file(ex, lp, flags)) | |
427 | set_excludes_dir(dir, dirlen); | |
428 | } | |
429 | ||
430 | if (strlcpy(dirbuf + dirbuf_len, ex->pattern, | |
431 | MAXPATHLEN - dirbuf_len) < MAXPATHLEN - dirbuf_len) | |
432 | add_exclude_file(lp, dirbuf, flags | XFLG_ABS_PATH); | |
433 | else { | |
434 | io_error |= IOERR_GENERAL; | |
435 | rprintf(FINFO, | |
436 | "cannot add local excludes in long-named directory %s\n", | |
437 | full_fname(dirbuf)); | |
438 | } | |
439 | dirbuf[dirbuf_len] = '\0'; | |
440 | } | |
441 | ||
442 | return (void*)push; | |
443 | } | |
444 | ||
445 | void pop_local_excludes(void *mem) | |
446 | { | |
447 | struct exclude_list_struct *ap, *pop = (struct exclude_list_struct*)mem; | |
448 | int i; | |
449 | ||
450 | for (i = mergelist_cnt; i-- > 0; ) { | |
451 | struct exclude_struct *ex = mergelist_parents[i]; | |
452 | struct exclude_list_struct *lp = ex->u.mergelist; | |
453 | ||
454 | if (verbose > 2) { | |
455 | rprintf(FINFO, "[%s] popping exclude list%s\n", | |
456 | who_am_i(), lp->debug_type); | |
457 | } | |
458 | ||
459 | clear_exclude_list(lp); | |
460 | } | |
461 | ||
462 | for (i = 0, ap = pop; i < mergelist_cnt; i++) { | |
463 | memcpy(mergelist_parents[i]->u.mergelist, ap++, | |
464 | sizeof (struct exclude_list_struct)); | |
465 | } | |
466 | ||
467 | free(pop); | |
5be7fa93 WD |
468 | } |
469 | ||
d567322f | 470 | static int check_one_exclude(char *name, struct exclude_struct *ex, |
5be7fa93 | 471 | int name_is_dir) |
2b6b4d53 | 472 | { |
9f186578 | 473 | char *p, full_name[MAXPATHLEN]; |
0f2ac855 | 474 | int match_start = 0; |
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 WD |
494 | if (ex->match_flags & MATCHFLG_DIRECTORY && !name_is_dir) |
495 | return 0; | |
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)) |
2b6b4d53 | 517 | return 1; |
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)) |
170381c0 | 523 | return 1; |
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)) |
170381c0 WD |
532 | return 1; |
533 | } | |
534 | } | |
535 | } else if (match_start) { | |
536 | if (strcmp(name,pattern) == 0) | |
537 | return 1; | |
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)] == '/')) { |
2b6b4d53 | 544 | return 1; |
c36cd317 | 545 | } |
2b6b4d53 AT |
546 | } |
547 | ||
548 | return 0; | |
c627d613 AT |
549 | } |
550 | ||
551 | ||
d567322f MP |
552 | static void report_exclude_result(char const *name, |
553 | struct exclude_struct const *ent, | |
61414c83 | 554 | int name_is_dir, const char *type) |
d567322f | 555 | { |
0f2ac855 WD |
556 | /* If a trailing slash is present to match only directories, |
557 | * then it is stripped out by make_exclude. So as a special | |
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 | */ |
67340e95 | 574 | int check_exclude(struct exclude_list_struct *listp, char *name, int name_is_dir) |
c627d613 | 575 | { |
0f2ac855 | 576 | struct exclude_struct *ent; |
c627d613 | 577 | |
b2aa573b | 578 | for (ent = listp->head; ent; ent = ent->next) { |
6dfd07d0 WD |
579 | if (ent->match_flags & MATCHFLG_PERDIR_MERGE) { |
580 | int rc = check_exclude(ent->u.mergelist, name, | |
581 | name_is_dir); | |
582 | if (rc) | |
583 | return rc; | |
584 | continue; | |
585 | } | |
5be7fa93 | 586 | if (check_one_exclude(name, ent, name_is_dir)) { |
67340e95 WD |
587 | report_exclude_result(name, ent, name_is_dir, |
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- |
6dfd07d0 | 601 | * clearing) token and (if xflags does NOT contain XFLG_NO_PREFIXES) the |
e425fbe8 | 602 | * +/- prefixes for overriding the include/exclude mode. The *flag_ptr |
65e24870 | 603 | * value will also be set to the MATCHFLG_* bits for the current token. |
f8f72644 | 604 | */ |
6dfd07d0 WD |
605 | static const char *get_exclude_tok(const char *p, int xflags, |
606 | unsigned int *len_ptr, unsigned int *flag_ptr) | |
f8f72644 | 607 | { |
abca4eba | 608 | const unsigned char *s = (const unsigned char *)p; |
5e972dcf | 609 | unsigned int len, mflags = 0; |
6dfd07d0 | 610 | int empty_pat_is_OK = 0; |
f8f72644 | 611 | |
96d3590a WD |
612 | if (xflags & XFLG_WORD_SPLIT) { |
613 | /* Skip over any initial whitespace. */ | |
614 | while (isspace(*s)) | |
f8f72644 | 615 | s++; |
6dfd07d0 | 616 | /* Update to point to real start of rule. */ |
abca4eba | 617 | p = (const char *)s; |
f8f72644 | 618 | } |
6dfd07d0 WD |
619 | if (!*s) |
620 | return NULL; | |
621 | ||
622 | /* Figure out what kind of a filter rule "s" is pointing at. */ | |
623 | if (!(xflags & (XFLG_DEF_INCLUDE | XFLG_DEF_EXCLUDE))) { | |
624 | char *mods = ""; | |
625 | switch (*s) { | |
626 | case ':': | |
627 | mflags |= MATCHFLG_PERDIR_MERGE | |
628 | | MATCHFLG_FINISH_SETUP; | |
629 | /* FALL THROUGH */ | |
630 | case '.': | |
631 | mflags |= MATCHFLG_MERGE_FILE; | |
632 | mods = "-+Cens"; | |
633 | break; | |
634 | case '+': | |
635 | mflags |= MATCHFLG_INCLUDE; | |
636 | break; | |
637 | case '-': | |
638 | break; | |
639 | case '!': | |
640 | mflags |= MATCHFLG_CLEAR_LIST; | |
641 | mods = NULL; | |
642 | break; | |
643 | default: | |
644 | rprintf(FERROR, "Unknown filter rule: %s\n", p); | |
645 | exit_cleanup(RERR_SYNTAX); | |
646 | } | |
647 | while (mods && *++s && *s != ' ' && *s != '=' && *s != '_') { | |
648 | if (strchr(mods, *s) == NULL) { | |
649 | if (xflags & XFLG_WORD_SPLIT && isspace(*s)) { | |
650 | s--; | |
651 | break; | |
652 | } | |
653 | rprintf(FERROR, | |
654 | "unknown option '%c' in filter rule: %s\n", | |
655 | *s, p); | |
656 | exit_cleanup(RERR_SYNTAX); | |
657 | } | |
658 | switch (*s) { | |
659 | case '-': | |
660 | mflags |= MATCHFLG_NO_PREFIXES; | |
661 | break; | |
662 | case '+': | |
663 | mflags |= MATCHFLG_NO_PREFIXES | |
664 | | MATCHFLG_INCLUDE; | |
665 | break; | |
666 | case 'C': | |
667 | empty_pat_is_OK = 1; | |
668 | mflags |= MATCHFLG_NO_PREFIXES | |
669 | | MATCHFLG_WORD_SPLIT | |
670 | | MATCHFLG_NO_INHERIT; | |
671 | break; | |
672 | case 'e': | |
673 | mflags |= MATCHFLG_EXCLUDE_SELF; | |
674 | break; | |
675 | case 'n': | |
676 | mflags |= MATCHFLG_NO_INHERIT; | |
677 | break; | |
678 | case 's': | |
679 | mflags |= MATCHFLG_WORD_SPLIT; | |
680 | break; | |
681 | } | |
682 | } | |
683 | if (*s) | |
684 | s++; | |
685 | } else if (!(xflags & XFLG_NO_PREFIXES) | |
96d3590a | 686 | && (*s == '-' || *s == '+') && s[1] == ' ') { |
5e972dcf WD |
687 | if (*s == '+') |
688 | mflags |= MATCHFLG_INCLUDE; | |
96d3590a | 689 | s += 2; |
6dfd07d0 WD |
690 | } else { |
691 | if (xflags & XFLG_DEF_INCLUDE) | |
692 | mflags |= MATCHFLG_INCLUDE; | |
693 | if (*s == '!') | |
694 | mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ | |
695 | } | |
696 | ||
9a5e37fc WD |
697 | if (xflags & XFLG_DIRECTORY) |
698 | mflags |= MATCHFLG_DIRECTORY; | |
96d3590a WD |
699 | |
700 | if (xflags & XFLG_WORD_SPLIT) { | |
701 | const unsigned char *cp = s; | |
702 | /* Token ends at whitespace or the end of the string. */ | |
703 | while (!isspace(*cp) && *cp != '\0') | |
704 | cp++; | |
705 | len = cp - s; | |
706 | } else | |
707 | len = strlen(s); | |
708 | ||
6dfd07d0 WD |
709 | if (mflags & MATCHFLG_CLEAR_LIST) { |
710 | if (!(xflags & (XFLG_DEF_INCLUDE | XFLG_DEF_EXCLUDE)) && len) { | |
711 | rprintf(FERROR, | |
712 | "'!' rule has trailing characters: %s\n", p); | |
713 | exit_cleanup(RERR_SYNTAX); | |
714 | } | |
715 | if (len > 1) | |
716 | mflags &= ~MATCHFLG_CLEAR_LIST; | |
717 | } else if (!len && !empty_pat_is_OK) { | |
718 | rprintf(FERROR, "unexpected end of filter rule: %s\n", p); | |
719 | exit_cleanup(RERR_SYNTAX); | |
720 | } | |
721 | ||
722 | if (xflags & XFLG_ABS_PATH) | |
723 | mflags |= MATCHFLG_ABS_PATH; | |
96d3590a WD |
724 | |
725 | *len_ptr = len; | |
5e972dcf | 726 | *flag_ptr = mflags; |
96d3590a | 727 | return (const char *)s; |
f8f72644 WD |
728 | } |
729 | ||
730 | ||
b2aa573b WD |
731 | void add_exclude(struct exclude_list_struct *listp, const char *pattern, |
732 | int xflags) | |
c627d613 | 733 | { |
5e972dcf | 734 | unsigned int pat_len, mflags; |
6dfd07d0 | 735 | const char *cp, *p; |
5be7fa93 | 736 | |
f8f72644 | 737 | if (!pattern) |
5e7dbaca | 738 | return; |
f8f72644 | 739 | |
b2aa573b | 740 | while (1) { |
6dfd07d0 WD |
741 | /* Remember that the returned string is NOT '\0' terminated! */ |
742 | cp = get_exclude_tok(pattern, xflags, &pat_len, &mflags); | |
743 | if (!cp) | |
b2aa573b | 744 | break; |
6dfd07d0 WD |
745 | if (pat_len >= MAXPATHLEN) { |
746 | rprintf(FERROR, "discarding over-long exclude: %s\n", | |
747 | cp); | |
748 | continue; | |
749 | } | |
750 | pattern = cp + pat_len; | |
5e972dcf WD |
751 | |
752 | if (mflags & MATCHFLG_CLEAR_LIST) { | |
de91e757 WD |
753 | if (verbose > 2) { |
754 | rprintf(FINFO, | |
6dfd07d0 | 755 | "[%s] clearing exclude list%s\n", |
de91e757 WD |
756 | who_am_i(), listp->debug_type); |
757 | } | |
8cbf495a | 758 | clear_exclude_list(listp); |
5e972dcf WD |
759 | continue; |
760 | } | |
b2aa573b | 761 | |
6dfd07d0 WD |
762 | if (!pat_len) { |
763 | cp = ".cvsignore"; | |
764 | pat_len = 10; | |
765 | } | |
5e972dcf | 766 | |
6dfd07d0 WD |
767 | if (mflags & MATCHFLG_MERGE_FILE) { |
768 | unsigned int len = pat_len; | |
769 | if (mflags & MATCHFLG_EXCLUDE_SELF) { | |
770 | const char *name = strrchr(cp, '/'); | |
771 | if (name) | |
772 | len -= ++name - cp; | |
773 | else | |
774 | name = cp; | |
775 | make_exclude(listp, name, len, 0); | |
776 | mflags &= ~MATCHFLG_EXCLUDE_SELF; | |
777 | len = pat_len; | |
778 | } | |
779 | if (mflags & MATCHFLG_PERDIR_MERGE) { | |
780 | if (parent_dirscan) { | |
781 | if (!(p = parse_merge_name(cp, &len, module_dirlen))) | |
782 | continue; | |
783 | make_exclude(listp, p, len, mflags); | |
784 | continue; | |
785 | } | |
786 | } else { | |
787 | int flgs = XFLG_FATAL_ERRORS; | |
788 | if (!(p = parse_merge_name(cp, &len, 0))) | |
789 | continue; | |
790 | if (mflags & MATCHFLG_INCLUDE) | |
791 | flgs |= XFLG_DEF_INCLUDE; | |
792 | else if (mflags & MATCHFLG_NO_PREFIXES) | |
793 | flgs |= XFLG_DEF_EXCLUDE; | |
794 | add_exclude_file(listp, p, flgs); | |
795 | continue; | |
796 | } | |
f8f72644 | 797 | } |
6dfd07d0 WD |
798 | |
799 | make_exclude(listp, cp, pat_len, mflags); | |
8c35542d | 800 | } |
c627d613 AT |
801 | } |
802 | ||
c627d613 | 803 | |
b2aa573b | 804 | void add_exclude_file(struct exclude_list_struct *listp, const char *fname, |
f8f72644 | 805 | int xflags) |
c627d613 | 806 | { |
5e7dbaca | 807 | FILE *fp; |
6dfd07d0 | 808 | char line[MAXPATHLEN+MAX_EXCLUDE_PREFIX+1]; /* +1 for trailing slash. */ |
7cd72c79 | 809 | char *eob = line + sizeof line - 1; |
40d38dc0 | 810 | int word_split = xflags & XFLG_WORD_SPLIT; |
ccdff3eb | 811 | |
5be7fa93 WD |
812 | if (!fname || !*fname) |
813 | return; | |
814 | ||
815 | if (*fname != '-' || fname[1]) | |
5e7dbaca | 816 | fp = fopen(fname, "rb"); |
ccdff3eb | 817 | else |
5e7dbaca WD |
818 | fp = stdin; |
819 | if (!fp) { | |
f8f72644 | 820 | if (xflags & XFLG_FATAL_ERRORS) { |
a039749b | 821 | rsyserr(FERROR, errno, |
6dfd07d0 WD |
822 | "failed to open %sclude file %s", |
823 | xflags & XFLG_DEF_INCLUDE ? "in" : "ex", | |
824 | safe_fname(fname)); | |
65417579 | 825 | exit_cleanup(RERR_FILEIO); |
2b6b4d53 | 826 | } |
5be7fa93 | 827 | return; |
2b6b4d53 | 828 | } |
6dfd07d0 WD |
829 | dirbuf[dirbuf_len] = '\0'; |
830 | ||
831 | if (verbose > 2) { | |
832 | rprintf(FINFO, "[%s] add_exclude_file(%s,%d)\n", | |
833 | who_am_i(), safe_fname(fname), xflags); | |
834 | } | |
2b6b4d53 | 835 | |
ccdff3eb | 836 | while (1) { |
5e7dbaca | 837 | char *s = line; |
619d21ff | 838 | int ch, overflow = 0; |
ccdff3eb | 839 | while (1) { |
5e7dbaca WD |
840 | if ((ch = getc(fp)) == EOF) { |
841 | if (ferror(fp) && errno == EINTR) | |
ccdff3eb WD |
842 | continue; |
843 | break; | |
844 | } | |
40d38dc0 WD |
845 | if (word_split && isspace(ch)) |
846 | break; | |
ccdff3eb WD |
847 | if (eol_nulls? !ch : (ch == '\n' || ch == '\r')) |
848 | break; | |
849 | if (s < eob) | |
850 | *s++ = ch; | |
619d21ff WD |
851 | else |
852 | overflow = 1; | |
853 | } | |
854 | if (overflow) { | |
855 | rprintf(FERROR, "discarding over-long exclude: %s...\n", line); | |
856 | s = line; | |
ccdff3eb WD |
857 | } |
858 | *s = '\0'; | |
7f0feb4d WD |
859 | /* Skip an empty token and (when line parsing) comments. */ |
860 | if (*line && (word_split || (*line != ';' && *line != '#'))) | |
f8f72644 | 861 | add_exclude(listp, line, xflags); |
5e7dbaca | 862 | if (ch == EOF) |
ccdff3eb | 863 | break; |
2b6b4d53 | 864 | } |
5e7dbaca | 865 | fclose(fp); |
c627d613 AT |
866 | } |
867 | ||
868 | ||
869 | void send_exclude_list(int f) | |
870 | { | |
b2aa573b | 871 | struct exclude_struct *ent; |
25cf8893 | 872 | |
353f2724 WD |
873 | /* This is a complete hack - blame Rusty. FIXME! |
874 | * Remove this hack when older rsyncs (below 2.6.4) are gone. */ | |
875 | if (list_only == 1 && !recurse) | |
6dfd07d0 | 876 | add_exclude(&exclude_list, "/*/*", XFLG_DEF_EXCLUDE); |
2b6b4d53 | 877 | |
b2aa573b | 878 | for (ent = exclude_list.head; ent; ent = ent->next) { |
5f5be796 | 879 | unsigned int l; |
6dfd07d0 | 880 | char p[MAXPATHLEN+MAX_EXCLUDE_PREFIX+1]; |
2fb139c1 | 881 | |
b2aa573b | 882 | l = strlcpy(p, ent->pattern, sizeof p); |
5f5be796 WD |
883 | if (l == 0 || l >= MAXPATHLEN) |
884 | continue; | |
5e972dcf | 885 | if (ent->match_flags & MATCHFLG_DIRECTORY) { |
a3dbb20a WD |
886 | p[l++] = '/'; |
887 | p[l] = '\0'; | |
5f5be796 | 888 | } |
2b6b4d53 | 889 | |
6dfd07d0 WD |
890 | if (ent->match_flags & MATCHFLG_PERDIR_MERGE) { |
891 | char buf[MAX_EXCLUDE_PREFIX], *op = buf; | |
892 | if (protocol_version < 29) { | |
893 | rprintf(FERROR, | |
894 | "remote rsync is too old to understand per-directory merge files.\n"); | |
895 | exit_cleanup(RERR_SYNTAX); | |
896 | } | |
897 | *op++ = ':'; | |
898 | if (ent->match_flags & MATCHFLG_WORD_SPLIT) | |
899 | *op++ = 's'; | |
900 | if (ent->match_flags & MATCHFLG_NO_INHERIT) | |
901 | *op++ = 'n'; | |
902 | if (ent->match_flags & MATCHFLG_EXCLUDE_SELF) | |
903 | *op++ = 'e'; | |
904 | if (ent->match_flags & MATCHFLG_NO_PREFIXES) { | |
905 | if (ent->match_flags & MATCHFLG_INCLUDE) | |
906 | *op++ = '+'; | |
907 | else | |
908 | *op++ = '-'; | |
909 | } | |
910 | *op++ = ' '; | |
911 | if (op - buf > MAX_EXCLUDE_PREFIX) | |
912 | overflow("send_exclude_list"); | |
913 | write_int(f, l + (op - buf)); | |
914 | write_buf(f, buf, op - buf); | |
915 | } else if (ent->match_flags & MATCHFLG_INCLUDE) { | |
a3dbb20a WD |
916 | write_int(f, l + 2); |
917 | write_buf(f, "+ ", 2); | |
6dfd07d0 WD |
918 | } else if (protocol_version >= 29 |
919 | || ((*p == '-' || *p == '+') && p[1] == ' ')) { | |
a3dbb20a WD |
920 | write_int(f, l + 2); |
921 | write_buf(f, "- ", 2); | |
922 | } else | |
923 | write_int(f, l); | |
924 | write_buf(f, p, l); | |
0f2ac855 | 925 | } |
2b6b4d53 | 926 | |
a3dbb20a | 927 | write_int(f, 0); |
c627d613 AT |
928 | } |
929 | ||
930 | ||
931 | void recv_exclude_list(int f) | |
932 | { | |
6dfd07d0 WD |
933 | char line[MAXPATHLEN+MAX_EXCLUDE_PREFIX+1]; /* +1 for trailing slash. */ |
934 | unsigned int xflags = protocol_version >= 29 ? 0 : XFLG_DEF_EXCLUDE; | |
9dd891bb MP |
935 | unsigned int l; |
936 | ||
5f5be796 WD |
937 | while ((l = read_int(f)) != 0) { |
938 | if (l >= sizeof line) | |
939 | overflow("recv_exclude_list"); | |
940 | read_sbuf(f, line, l); | |
6dfd07d0 | 941 | add_exclude(&exclude_list, line, xflags); |
651443a7 | 942 | } |
651443a7 DD |
943 | } |
944 | ||
0f2ac855 | 945 | |
f8f72644 WD |
946 | static char default_cvsignore[] = |
947 | /* These default ignored items come from the CVS manual. */ | |
948 | "RCS SCCS CVS CVS.adm RCSLOG cvslog.* tags TAGS" | |
949 | " .make.state .nse_depinfo *~ #* .#* ,* _$* *$" | |
950 | " *.old *.bak *.BAK *.orig *.rej .del-*" | |
951 | " *.a *.olb *.o *.obj *.so *.exe" | |
952 | " *.Z *.elc *.ln core" | |
953 | /* The rest we added to suit ourself. */ | |
954 | " .svn/"; | |
c627d613 AT |
955 | |
956 | void add_cvs_excludes(void) | |
957 | { | |
6dfd07d0 WD |
958 | static unsigned int cvs_flags = XFLG_WORD_SPLIT | XFLG_NO_PREFIXES |
959 | | XFLG_DEF_EXCLUDE; | |
2b6b4d53 AT |
960 | char fname[MAXPATHLEN]; |
961 | char *p; | |
0f2ac855 | 962 | |
6dfd07d0 WD |
963 | add_exclude(&exclude_list, ":C", 0); |
964 | add_exclude(&exclude_list, default_cvsignore, cvs_flags); | |
c627d613 | 965 | |
a7725e6d | 966 | if ((p = getenv("HOME")) |
f8f72644 | 967 | && pathjoin(fname, sizeof fname, p, ".cvsignore") < sizeof fname) { |
6dfd07d0 | 968 | add_exclude_file(&exclude_list, fname, cvs_flags); |
f8f72644 | 969 | } |
c627d613 | 970 | |
6dfd07d0 | 971 | add_exclude(&exclude_list, getenv("CVSIGNORE"), cvs_flags); |
c627d613 | 972 | } |