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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; |
fdc79501 | 31 | extern int am_sender; |
40d38dc0 WD |
32 | extern int eol_nulls; |
33 | extern int list_only; | |
34 | extern int recurse; | |
6dfd07d0 | 35 | extern int io_error; |
1412da7c | 36 | extern int local_server; |
fdc79501 WD |
37 | extern int delete_mode; |
38 | extern int delete_excluded; | |
39 | extern int cvs_exclude; | |
6dfd07d0 WD |
40 | extern int sanitize_paths; |
41 | extern int protocol_version; | |
bf39270e | 42 | extern int module_id; |
40d38dc0 WD |
43 | |
44 | extern char curr_dir[]; | |
6dfd07d0 WD |
45 | extern unsigned int curr_dir_len; |
46 | extern unsigned int module_dirlen; | |
c627d613 | 47 | |
7842418b | 48 | struct filter_list_struct filter_list = { 0, 0, "" }; |
fdc79501 WD |
49 | struct filter_list_struct cvs_filter_list = { 0, 0, " [cvsignore]" }; |
50 | struct filter_list_struct server_filter_list = { 0, 0, " [server]" }; | |
c627d613 | 51 | |
6dfd07d0 | 52 | /* Need room enough for ":MODS " prefix plus some room to grow. */ |
7842418b | 53 | #define MAX_RULE_PREFIX (16) |
6dfd07d0 | 54 | |
d727f0ff | 55 | #define MODIFIERS_MERGE_FILE "-+Cenw" |
ed243f8c WD |
56 | #define MODIFIERS_INCL_EXCL "/!Crs" |
57 | #define MODIFIERS_HIDE_PROTECT "/!" | |
b6f06b8e | 58 | |
7842418b | 59 | /* The dirbuf is set by push_local_filters() to the current subdirectory |
6dfd07d0 WD |
60 | * relative to curr_dir that is being processed. The path always has a |
61 | * trailing slash appended, and the variable dirbuf_len contains the length | |
62 | * of this path prefix. The path is always absolute. */ | |
63 | static char dirbuf[MAXPATHLEN+1]; | |
64 | static unsigned int dirbuf_len = 0; | |
65 | static int dirbuf_depth; | |
66 | ||
67 | /* This is True when we're scanning parent dirs for per-dir merge-files. */ | |
68 | static BOOL parent_dirscan = False; | |
69 | ||
70 | /* This array contains a list of all the currently active per-dir merge | |
71 | * files. This makes it easier to save the appropriate values when we | |
72 | * "push" down into each subdirectory. */ | |
7842418b | 73 | static struct filter_struct **mergelist_parents; |
6dfd07d0 WD |
74 | static int mergelist_cnt = 0; |
75 | static int mergelist_size = 0; | |
76 | ||
7842418b | 77 | /* Each filter_list_struct describes a singly-linked list by keeping track |
6dfd07d0 WD |
78 | * of both the head and tail pointers. The list is slightly unusual in that |
79 | * a parent-dir's content can be appended to the end of the local list in a | |
80 | * special way: the last item in the local list has its "next" pointer set | |
81 | * to point to the inherited list, but the local list's tail pointer points | |
82 | * at the end of the local list. Thus, if the local list is empty, the head | |
83 | * will be pointing at the inherited content but the tail will be NULL. To | |
84 | * help you visualize this, here are the possible list arrangements: | |
85 | * | |
86 | * Completely Empty Local Content Only | |
87 | * ================================== ==================================== | |
88 | * head -> NULL head -> Local1 -> Local2 -> NULL | |
89 | * tail -> NULL tail -------------^ | |
90 | * | |
91 | * Inherited Content Only Both Local and Inherited Content | |
92 | * ================================== ==================================== | |
93 | * head -> Parent1 -> Parent2 -> NULL head -> L1 -> L2 -> P1 -> P2 -> NULL | |
94 | * tail -> NULL tail ---------^ | |
95 | * | |
96 | * This means that anyone wanting to traverse the whole list to use it just | |
97 | * needs to start at the head and use the "next" pointers until it goes | |
98 | * NULL. To add new local content, we insert the item after the tail item | |
99 | * and update the tail (obviously, if "tail" was NULL, we insert it at the | |
100 | * head). To clear the local list, WE MUST NOT FREE THE INHERITED CONTENT | |
101 | * because it is shared between the current list and our parent list(s). | |
102 | * The easiest way to handle this is to simply truncate the list after the | |
103 | * tail item and then free the local list from the head. When inheriting | |
7842418b | 104 | * the list for a new local dir, we just save off the filter_list_struct |
6dfd07d0 WD |
105 | * values (so we can pop back to them later) and set the tail to NULL. |
106 | */ | |
107 | ||
7842418b | 108 | static void free_filter(struct filter_struct *ex) |
6dfd07d0 WD |
109 | { |
110 | if (ex->match_flags & MATCHFLG_PERDIR_MERGE) { | |
111 | free(ex->u.mergelist->debug_type); | |
112 | free(ex->u.mergelist); | |
113 | mergelist_cnt--; | |
114 | } | |
115 | free(ex->pattern); | |
116 | free(ex); | |
117 | } | |
118 | ||
7842418b | 119 | /* Build a filter structure given a filter pattern. The value in "pat" |
6dfd07d0 | 120 | * is not null-terminated. */ |
fdc79501 WD |
121 | static void add_rule(struct filter_list_struct *listp, const char *pat, |
122 | unsigned int pat_len, uint32 mflags, int xflags) | |
c627d613 | 123 | { |
7842418b | 124 | struct filter_struct *ret; |
f8f72644 | 125 | const char *cp; |
5e972dcf | 126 | unsigned int ex_len; |
c627d613 | 127 | |
6dfd07d0 | 128 | if (verbose > 2) { |
fdc79501 WD |
129 | rprintf(FINFO, "[%s] add_rule(%s%.*s%s)%s\n", |
130 | who_am_i(), get_rule_prefix(mflags, pat, 0, NULL), | |
131 | (int)pat_len, pat, | |
132 | (mflags & MATCHFLG_DIRECTORY) ? "/" : "", | |
6dfd07d0 WD |
133 | listp->debug_type); |
134 | } | |
135 | ||
fdc79501 WD |
136 | if (!(ret = new(struct filter_struct))) |
137 | out_of_memory("add_rule"); | |
5f5be796 | 138 | memset(ret, 0, sizeof ret[0]); |
2b6b4d53 | 139 | |
bf39270e WD |
140 | if (xflags & XFLG_ANCHORED2ABS && *pat == '/' |
141 | && !(mflags & (MATCHFLG_ABS_PATH | MATCHFLG_MERGE_FILE))) { | |
142 | mflags |= MATCHFLG_ABS_PATH; | |
143 | ex_len = dirbuf_len - module_dirlen - 1; | |
6dfd07d0 | 144 | } else |
f8f72644 | 145 | ex_len = 0; |
fdc79501 WD |
146 | if (!(ret->pattern = new_array(char, ex_len + pat_len + 1))) |
147 | out_of_memory("add_rule"); | |
f8f72644 | 148 | if (ex_len) |
6dfd07d0 | 149 | memcpy(ret->pattern, dirbuf + module_dirlen, ex_len); |
5e972dcf | 150 | strlcpy(ret->pattern + ex_len, pat, pat_len + 1); |
f8f72644 WD |
151 | pat_len += ex_len; |
152 | ||
153 | if (strpbrk(ret->pattern, "*[?")) { | |
5e972dcf | 154 | mflags |= MATCHFLG_WILD; |
96d3590a | 155 | if ((cp = strstr(ret->pattern, "**")) != NULL) { |
5e972dcf | 156 | mflags |= MATCHFLG_WILD2; |
170381c0 | 157 | /* If the pattern starts with **, note that. */ |
96d3590a | 158 | if (cp == ret->pattern) |
5e972dcf | 159 | mflags |= MATCHFLG_WILD2_PREFIX; |
0f2ac855 | 160 | } |
2bca43f6 | 161 | } |
c627d613 | 162 | |
5be7fa93 WD |
163 | if (pat_len > 1 && ret->pattern[pat_len-1] == '/') { |
164 | ret->pattern[pat_len-1] = 0; | |
5e972dcf | 165 | mflags |= MATCHFLG_DIRECTORY; |
2b6b4d53 | 166 | } |
c627d613 | 167 | |
6dfd07d0 | 168 | if (mflags & MATCHFLG_PERDIR_MERGE) { |
7842418b | 169 | struct filter_list_struct *lp; |
6dfd07d0 WD |
170 | unsigned int len; |
171 | int i; | |
172 | ||
173 | if ((cp = strrchr(ret->pattern, '/')) != NULL) | |
174 | cp++; | |
175 | else | |
176 | cp = ret->pattern; | |
177 | ||
178 | /* If the local merge file was already mentioned, don't | |
179 | * add it again. */ | |
180 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b | 181 | struct filter_struct *ex = mergelist_parents[i]; |
6dfd07d0 WD |
182 | const char *s = strrchr(ex->pattern, '/'); |
183 | if (s) | |
bf39270e | 184 | s++; |
6dfd07d0 | 185 | else |
bf39270e | 186 | s = ex->pattern; |
6dfd07d0 WD |
187 | len = strlen(s); |
188 | if (len == pat_len - (cp - ret->pattern) | |
189 | && memcmp(s, cp, len) == 0) { | |
7842418b | 190 | free_filter(ret); |
6dfd07d0 WD |
191 | return; |
192 | } | |
193 | } | |
194 | ||
7842418b | 195 | if (!(lp = new_array(struct filter_list_struct, 1))) |
fdc79501 | 196 | out_of_memory("add_rule"); |
6dfd07d0 | 197 | lp->head = lp->tail = NULL; |
fdc79501 WD |
198 | if (asprintf(&lp->debug_type, " [per-dir %s]", cp) < 0) |
199 | out_of_memory("add_rule"); | |
6dfd07d0 WD |
200 | ret->u.mergelist = lp; |
201 | ||
202 | if (mergelist_cnt == mergelist_size) { | |
203 | mergelist_size += 5; | |
204 | mergelist_parents = realloc_array(mergelist_parents, | |
7842418b | 205 | struct filter_struct *, |
6dfd07d0 WD |
206 | mergelist_size); |
207 | if (!mergelist_parents) | |
fdc79501 | 208 | out_of_memory("add_rule"); |
6dfd07d0 WD |
209 | } |
210 | mergelist_parents[mergelist_cnt++] = ret; | |
211 | } else { | |
212 | for (cp = ret->pattern; (cp = strchr(cp, '/')) != NULL; cp++) | |
213 | ret->u.slash_cnt++; | |
214 | } | |
0944563e | 215 | |
c1b29492 WD |
216 | ret->match_flags = mflags; |
217 | ||
6dfd07d0 WD |
218 | if (!listp->tail) { |
219 | ret->next = listp->head; | |
b2aa573b | 220 | listp->head = listp->tail = ret; |
6dfd07d0 WD |
221 | } else { |
222 | ret->next = listp->tail->next; | |
b2aa573b WD |
223 | listp->tail->next = ret; |
224 | listp->tail = ret; | |
225 | } | |
2b6b4d53 AT |
226 | } |
227 | ||
7842418b | 228 | static void clear_filter_list(struct filter_list_struct *listp) |
2b6b4d53 | 229 | { |
6dfd07d0 | 230 | if (listp->tail) { |
7842418b | 231 | struct filter_struct *ent, *next; |
6dfd07d0 WD |
232 | /* Truncate any inherited items from the local list. */ |
233 | listp->tail->next = NULL; | |
234 | /* Now free everything that is left. */ | |
235 | for (ent = listp->head; ent; ent = next) { | |
236 | next = ent->next; | |
7842418b | 237 | free_filter(ent); |
6dfd07d0 WD |
238 | } |
239 | } | |
240 | ||
241 | listp->head = listp->tail = NULL; | |
2b6b4d53 | 242 | } |
c627d613 | 243 | |
6dfd07d0 WD |
244 | /* This returns an expanded (absolute) filename for the merge-file name if |
245 | * the name has any slashes in it OR if the parent_dirscan var is True; | |
246 | * otherwise it returns the original merge_file name. If the len_ptr value | |
247 | * is non-NULL the merge_file name is limited by the referenced length | |
248 | * value and will be updated with the length of the resulting name. We | |
249 | * always return a name that is null terminated, even if the merge_file | |
250 | * name was not. */ | |
251 | static char *parse_merge_name(const char *merge_file, unsigned int *len_ptr, | |
252 | unsigned int prefix_skip) | |
5be7fa93 | 253 | { |
6dfd07d0 WD |
254 | static char buf[MAXPATHLEN]; |
255 | char *fn, tmpbuf[MAXPATHLEN]; | |
256 | unsigned int fn_len; | |
257 | ||
258 | if (!parent_dirscan && *merge_file != '/') { | |
259 | /* Return the name unchanged it doesn't have any slashes. */ | |
260 | if (len_ptr) { | |
261 | const char *p = merge_file + *len_ptr; | |
262 | while (--p > merge_file && *p != '/') {} | |
263 | if (p == merge_file) { | |
264 | strlcpy(buf, merge_file, *len_ptr + 1); | |
265 | return buf; | |
266 | } | |
267 | } else if (strchr(merge_file, '/') == NULL) | |
268 | return (char *)merge_file; | |
269 | } | |
5be7fa93 | 270 | |
6dfd07d0 WD |
271 | fn = *merge_file == '/' ? buf : tmpbuf; |
272 | if (sanitize_paths) { | |
273 | const char *r = prefix_skip ? "/" : NULL; | |
274 | /* null-terminate the name if it isn't already */ | |
275 | if (len_ptr && merge_file[*len_ptr]) { | |
276 | char *to = fn == buf ? tmpbuf : buf; | |
277 | strlcpy(to, merge_file, *len_ptr + 1); | |
278 | merge_file = to; | |
279 | } | |
280 | if (!sanitize_path(fn, merge_file, r, dirbuf_depth)) { | |
281 | rprintf(FERROR, "merge-file name overflows: %s\n", | |
a6126d67 | 282 | safe_fname(merge_file)); |
6dfd07d0 WD |
283 | return NULL; |
284 | } | |
285 | } else { | |
286 | strlcpy(fn, merge_file, len_ptr ? *len_ptr + 1 : MAXPATHLEN); | |
287 | clean_fname(fn, 1); | |
b2aa573b | 288 | } |
6dfd07d0 WD |
289 | |
290 | fn_len = strlen(fn); | |
291 | if (fn == buf) | |
292 | goto done; | |
293 | ||
294 | if (dirbuf_len + fn_len >= MAXPATHLEN) { | |
a6126d67 WD |
295 | rprintf(FERROR, "merge-file name overflows: %s\n", |
296 | safe_fname(fn)); | |
6dfd07d0 WD |
297 | return NULL; |
298 | } | |
299 | memcpy(buf, dirbuf + prefix_skip, dirbuf_len - prefix_skip); | |
300 | memcpy(buf + dirbuf_len - prefix_skip, fn, fn_len + 1); | |
301 | fn_len = clean_fname(buf, 1); | |
302 | ||
303 | done: | |
304 | if (len_ptr) | |
305 | *len_ptr = fn_len; | |
306 | return buf; | |
307 | } | |
5be7fa93 | 308 | |
6dfd07d0 | 309 | /* Sets the dirbuf and dirbuf_len values. */ |
7842418b | 310 | void set_filter_dir(const char *dir, unsigned int dirlen) |
6dfd07d0 WD |
311 | { |
312 | unsigned int len; | |
313 | if (*dir != '/') { | |
314 | memcpy(dirbuf, curr_dir, curr_dir_len); | |
315 | dirbuf[curr_dir_len] = '/'; | |
316 | len = curr_dir_len + 1; | |
317 | if (len + dirlen >= MAXPATHLEN) | |
318 | dirlen = 0; | |
319 | } else | |
320 | len = 0; | |
321 | memcpy(dirbuf + len, dir, dirlen); | |
322 | dirbuf[dirlen + len] = '\0'; | |
323 | dirbuf_len = clean_fname(dirbuf, 1); | |
324 | if (dirbuf_len > 1 && dirbuf[dirbuf_len-1] == '.' | |
325 | && dirbuf[dirbuf_len-2] == '/') | |
326 | dirbuf_len -= 2; | |
327 | if (dirbuf_len != 1) | |
328 | dirbuf[dirbuf_len++] = '/'; | |
329 | dirbuf[dirbuf_len] = '\0'; | |
330 | if (sanitize_paths) | |
331 | dirbuf_depth = count_dir_elements(dirbuf + module_dirlen); | |
332 | } | |
333 | ||
334 | /* This routine takes a per-dir merge-file entry and finishes its setup. | |
335 | * If the name has a path portion then we check to see if it refers to a | |
336 | * parent directory of the first transfer dir. If it does, we scan all the | |
337 | * dirs from that point through the parent dir of the transfer dir looking | |
338 | * for the per-dir merge-file in each one. */ | |
7842418b | 339 | static BOOL setup_merge_file(struct filter_struct *ex, |
b6f06b8e | 340 | struct filter_list_struct *lp) |
6dfd07d0 WD |
341 | { |
342 | char buf[MAXPATHLEN]; | |
343 | char *x, *y, *pat = ex->pattern; | |
344 | unsigned int len; | |
345 | ||
346 | if (!(x = parse_merge_name(pat, NULL, 0)) || *x != '/') | |
347 | return 0; | |
348 | ||
349 | y = strrchr(x, '/'); | |
350 | *y = '\0'; | |
351 | ex->pattern = strdup(y+1); | |
352 | if (!*x) | |
353 | x = "/"; | |
354 | if (*x == '/') | |
355 | strlcpy(buf, x, MAXPATHLEN); | |
356 | else | |
357 | pathjoin(buf, MAXPATHLEN, dirbuf, x); | |
358 | ||
359 | len = clean_fname(buf, 1); | |
360 | if (len != 1 && len < MAXPATHLEN-1) { | |
361 | buf[len++] = '/'; | |
362 | buf[len] = '\0'; | |
363 | } | |
364 | /* This ensures that the specified dir is a parent of the transfer. */ | |
365 | for (x = buf, y = dirbuf; *x && *x == *y; x++, y++) {} | |
366 | if (*x) | |
367 | y += strlen(y); /* nope -- skip the scan */ | |
368 | ||
369 | parent_dirscan = True; | |
370 | while (*y) { | |
371 | char save[MAXPATHLEN]; | |
372 | strlcpy(save, y, MAXPATHLEN); | |
373 | *y = '\0'; | |
374 | dirbuf_len = y - dirbuf; | |
375 | strlcpy(x, ex->pattern, MAXPATHLEN - (x - buf)); | |
fdc79501 | 376 | parse_filter_file(lp, buf, ex->match_flags, XFLG_ANCHORED2ABS); |
6dfd07d0 WD |
377 | if (ex->match_flags & MATCHFLG_NO_INHERIT) |
378 | lp->head = NULL; | |
379 | lp->tail = NULL; | |
380 | strlcpy(y, save, MAXPATHLEN); | |
381 | while ((*x++ = *y++) != '/') {} | |
382 | } | |
383 | parent_dirscan = False; | |
384 | free(pat); | |
385 | return 1; | |
386 | } | |
387 | ||
388 | /* Each time rsync changes to a new directory it call this function to | |
389 | * handle all the per-dir merge-files. The "dir" value is the current path | |
390 | * relative to curr_dir (which might not be null-terminated). We copy it | |
391 | * into dirbuf so that we can easily append a file name on the end. */ | |
7842418b | 392 | void *push_local_filters(const char *dir, unsigned int dirlen) |
6dfd07d0 | 393 | { |
7842418b | 394 | struct filter_list_struct *ap, *push; |
6dfd07d0 WD |
395 | int i; |
396 | ||
7842418b | 397 | set_filter_dir(dir, dirlen); |
6dfd07d0 | 398 | |
a2b371cd WD |
399 | if (!mergelist_cnt) |
400 | return NULL; | |
401 | ||
7842418b | 402 | push = new_array(struct filter_list_struct, mergelist_cnt); |
6dfd07d0 | 403 | if (!push) |
7842418b | 404 | out_of_memory("push_local_filters"); |
6dfd07d0 WD |
405 | |
406 | for (i = 0, ap = push; i < mergelist_cnt; i++) { | |
407 | memcpy(ap++, mergelist_parents[i]->u.mergelist, | |
7842418b | 408 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
409 | } |
410 | ||
fdc79501 | 411 | /* Note: parse_filter_file() might increase mergelist_cnt, so keep |
6dfd07d0 WD |
412 | * this loop separate from the above loop. */ |
413 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b WD |
414 | struct filter_struct *ex = mergelist_parents[i]; |
415 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
416 | |
417 | if (verbose > 2) { | |
7842418b | 418 | rprintf(FINFO, "[%s] pushing filter list%s\n", |
6dfd07d0 WD |
419 | who_am_i(), lp->debug_type); |
420 | } | |
421 | ||
422 | lp->tail = NULL; /* Switch any local rules to inherited. */ | |
423 | if (ex->match_flags & MATCHFLG_NO_INHERIT) | |
424 | lp->head = NULL; | |
6dfd07d0 WD |
425 | |
426 | if (ex->match_flags & MATCHFLG_FINISH_SETUP) { | |
427 | ex->match_flags &= ~MATCHFLG_FINISH_SETUP; | |
b6f06b8e | 428 | if (setup_merge_file(ex, lp)) |
7842418b | 429 | set_filter_dir(dir, dirlen); |
6dfd07d0 WD |
430 | } |
431 | ||
432 | if (strlcpy(dirbuf + dirbuf_len, ex->pattern, | |
b6f06b8e | 433 | MAXPATHLEN - dirbuf_len) < MAXPATHLEN - dirbuf_len) { |
fdc79501 WD |
434 | parse_filter_file(lp, dirbuf, ex->match_flags, |
435 | XFLG_ANCHORED2ABS); | |
b6f06b8e | 436 | } else { |
6dfd07d0 WD |
437 | io_error |= IOERR_GENERAL; |
438 | rprintf(FINFO, | |
7842418b | 439 | "cannot add local filter rules in long-named directory: %s\n", |
6dfd07d0 WD |
440 | full_fname(dirbuf)); |
441 | } | |
442 | dirbuf[dirbuf_len] = '\0'; | |
443 | } | |
444 | ||
445 | return (void*)push; | |
446 | } | |
447 | ||
7842418b | 448 | void pop_local_filters(void *mem) |
6dfd07d0 | 449 | { |
7842418b | 450 | struct filter_list_struct *ap, *pop = (struct filter_list_struct*)mem; |
6dfd07d0 WD |
451 | int i; |
452 | ||
453 | for (i = mergelist_cnt; i-- > 0; ) { | |
7842418b WD |
454 | struct filter_struct *ex = mergelist_parents[i]; |
455 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
456 | |
457 | if (verbose > 2) { | |
7842418b | 458 | rprintf(FINFO, "[%s] popping filter list%s\n", |
6dfd07d0 WD |
459 | who_am_i(), lp->debug_type); |
460 | } | |
461 | ||
7842418b | 462 | clear_filter_list(lp); |
6dfd07d0 WD |
463 | } |
464 | ||
a2b371cd WD |
465 | if (!pop) |
466 | return; | |
467 | ||
6dfd07d0 WD |
468 | for (i = 0, ap = pop; i < mergelist_cnt; i++) { |
469 | memcpy(mergelist_parents[i]->u.mergelist, ap++, | |
7842418b | 470 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
471 | } |
472 | ||
473 | free(pop); | |
5be7fa93 WD |
474 | } |
475 | ||
7842418b | 476 | static int rule_matches(char *name, struct filter_struct *ex, int name_is_dir) |
2b6b4d53 | 477 | { |
9f186578 | 478 | char *p, full_name[MAXPATHLEN]; |
0f2ac855 | 479 | int match_start = 0; |
f2ae9e85 | 480 | int ret_match = ex->match_flags & MATCHFLG_NEGATE ? 0 : 1; |
2b6b4d53 AT |
481 | char *pattern = ex->pattern; |
482 | ||
9f186578 WD |
483 | if (!*name) |
484 | return 0; | |
485 | ||
170381c0 WD |
486 | /* If the pattern does not have any slashes AND it does not have |
487 | * a "**" (which could match a slash), then we just match the | |
488 | * name portion of the path. */ | |
6dfd07d0 | 489 | if (!ex->u.slash_cnt && !(ex->match_flags & MATCHFLG_WILD2)) { |
5be7fa93 WD |
490 | if ((p = strrchr(name,'/')) != NULL) |
491 | name = p+1; | |
492 | } | |
9f186578 | 493 | else if (ex->match_flags & MATCHFLG_ABS_PATH && *name != '/' |
6dfd07d0 WD |
494 | && curr_dir_len > module_dirlen + 1) { |
495 | pathjoin(full_name, sizeof full_name, | |
496 | curr_dir + module_dirlen + 1, name); | |
5be7fa93 WD |
497 | name = full_name; |
498 | } | |
2b6b4d53 | 499 | |
5e972dcf | 500 | if (ex->match_flags & MATCHFLG_DIRECTORY && !name_is_dir) |
f2ae9e85 | 501 | return !ret_match; |
2b6b4d53 | 502 | |
170381c0 | 503 | if (*pattern == '/') { |
2b6b4d53 AT |
504 | match_start = 1; |
505 | pattern++; | |
170381c0 WD |
506 | if (*name == '/') |
507 | name++; | |
2b6b4d53 AT |
508 | } |
509 | ||
170381c0 | 510 | if (ex->match_flags & MATCHFLG_WILD) { |
170381c0 WD |
511 | /* A non-anchored match with an infix slash and no "**" |
512 | * needs to match the last slash_cnt+1 name elements. */ | |
6dfd07d0 | 513 | if (!match_start && ex->u.slash_cnt |
5e972dcf | 514 | && !(ex->match_flags & MATCHFLG_WILD2)) { |
6dfd07d0 | 515 | int cnt = ex->u.slash_cnt + 1; |
170381c0 WD |
516 | for (p = name + strlen(name) - 1; p >= name; p--) { |
517 | if (*p == '/' && !--cnt) | |
518 | break; | |
519 | } | |
520 | name = p+1; | |
521 | } | |
fe332038 | 522 | if (wildmatch(pattern, name)) |
f2ae9e85 | 523 | return ret_match; |
170381c0 WD |
524 | if (ex->match_flags & MATCHFLG_WILD2_PREFIX) { |
525 | /* If the **-prefixed pattern has a '/' as the next | |
526 | * character, then try to match the rest of the | |
527 | * pattern at the root. */ | |
fe332038 | 528 | if (pattern[2] == '/' && wildmatch(pattern+3, name)) |
f2ae9e85 | 529 | return ret_match; |
c36cd317 | 530 | } |
170381c0 WD |
531 | else if (!match_start && ex->match_flags & MATCHFLG_WILD2) { |
532 | /* A non-anchored match with an infix or trailing "**" | |
533 | * (but not a prefixed "**") needs to try matching | |
534 | * after every slash. */ | |
535 | while ((name = strchr(name, '/')) != NULL) { | |
536 | name++; | |
fe332038 | 537 | if (wildmatch(pattern, name)) |
f2ae9e85 | 538 | return ret_match; |
170381c0 WD |
539 | } |
540 | } | |
541 | } else if (match_start) { | |
542 | if (strcmp(name,pattern) == 0) | |
f2ae9e85 | 543 | return ret_match; |
2b6b4d53 AT |
544 | } else { |
545 | int l1 = strlen(name); | |
ea2111d1 | 546 | int l2 = strlen(pattern); |
0f2ac855 | 547 | if (l2 <= l1 && |
ea2111d1 | 548 | strcmp(name+(l1-l2),pattern) == 0 && |
170381c0 | 549 | (l1==l2 || name[l1-(l2+1)] == '/')) { |
f2ae9e85 | 550 | return ret_match; |
c36cd317 | 551 | } |
2b6b4d53 AT |
552 | } |
553 | ||
f2ae9e85 | 554 | return !ret_match; |
c627d613 AT |
555 | } |
556 | ||
557 | ||
7842418b WD |
558 | static void report_filter_result(char const *name, |
559 | struct filter_struct const *ent, | |
560 | int name_is_dir, const char *type) | |
d567322f | 561 | { |
0f2ac855 | 562 | /* If a trailing slash is present to match only directories, |
fdc79501 | 563 | * then it is stripped out by add_rule(). So as a special |
0f2ac855 WD |
564 | * case we add it back in here. */ |
565 | ||
ea847c62 | 566 | if (verbose >= 2) { |
6dfd07d0 | 567 | rprintf(FINFO, "[%s] %scluding %s %s because of pattern %s%s%s\n", |
5e972dcf WD |
568 | who_am_i(), |
569 | ent->match_flags & MATCHFLG_INCLUDE ? "in" : "ex", | |
6dfd07d0 WD |
570 | name_is_dir ? "directory" : "file", name, ent->pattern, |
571 | ent->match_flags & MATCHFLG_DIRECTORY ? "/" : "", type); | |
ea847c62 | 572 | } |
d567322f MP |
573 | } |
574 | ||
575 | ||
576 | /* | |
a6536635 WD |
577 | * Return -1 if file "name" is defined to be excluded by the specified |
578 | * exclude list, 1 if it is included, and 0 if it was not matched. | |
d567322f | 579 | */ |
7842418b | 580 | int check_filter(struct filter_list_struct *listp, char *name, int name_is_dir) |
c627d613 | 581 | { |
7842418b | 582 | struct filter_struct *ent; |
c627d613 | 583 | |
b2aa573b | 584 | for (ent = listp->head; ent; ent = ent->next) { |
6dfd07d0 | 585 | if (ent->match_flags & MATCHFLG_PERDIR_MERGE) { |
7842418b WD |
586 | int rc = check_filter(ent->u.mergelist, name, |
587 | name_is_dir); | |
6dfd07d0 WD |
588 | if (rc) |
589 | return rc; | |
590 | continue; | |
591 | } | |
fdc79501 WD |
592 | if (ent->match_flags & MATCHFLG_CVS_IGNORE) { |
593 | int rc = check_filter(&cvs_filter_list, name, | |
594 | name_is_dir); | |
595 | if (rc) | |
596 | return rc; | |
597 | continue; | |
598 | } | |
7842418b WD |
599 | if (rule_matches(name, ent, name_is_dir)) { |
600 | report_filter_result(name, ent, name_is_dir, | |
67340e95 | 601 | listp->debug_type); |
5e972dcf | 602 | return ent->match_flags & MATCHFLG_INCLUDE ? 1 : -1; |
0f2ac855 | 603 | } |
2b6b4d53 | 604 | } |
c627d613 | 605 | |
2b6b4d53 | 606 | return 0; |
c627d613 AT |
607 | } |
608 | ||
345e0988 | 609 | #define RULE_STRCMP(s,r) rule_strcmp((s), (r), sizeof (r) - 1) |
a1ac8edd | 610 | |
345e0988 | 611 | static const char *rule_strcmp(const char *str, const char *rule, int rule_len) |
a1ac8edd WD |
612 | { |
613 | if (strncmp(str, rule, rule_len) != 0) | |
614 | return NULL; | |
615 | if (isspace(str[rule_len]) || str[rule_len] == '_' || !str[rule_len]) | |
616 | return str + rule_len - 1; | |
617 | if (str[rule_len] == ',') | |
618 | return str + rule_len; | |
619 | return NULL; | |
620 | } | |
c627d613 | 621 | |
f8f72644 WD |
622 | /* Get the next include/exclude arg from the string. The token will not |
623 | * be '\0' terminated, so use the returned length to limit the string. | |
624 | * Also, be sure to add this length to the returned pointer before passing | |
e425fbe8 | 625 | * it back to ask for the next token. This routine parses the "!" (list- |
b6f06b8e WD |
626 | * clearing) token and (depending on the mflags) the various prefixes. |
627 | * The *mflags_ptr value will be set on exit to the new MATCHFLG_* bits | |
628 | * for the current token. */ | |
fdc79501 WD |
629 | static const char *parse_rule_tok(const char *p, uint32 mflags, int xflags, |
630 | unsigned int *len_ptr, uint32 *mflags_ptr) | |
f8f72644 | 631 | { |
fdc79501 WD |
632 | const uchar *s = (const uchar *)p; |
633 | uint32 new_mflags; | |
634 | unsigned int len; | |
f8f72644 | 635 | |
b6f06b8e | 636 | if (mflags & MATCHFLG_WORD_SPLIT) { |
96d3590a WD |
637 | /* Skip over any initial whitespace. */ |
638 | while (isspace(*s)) | |
f8f72644 | 639 | s++; |
6dfd07d0 | 640 | /* Update to point to real start of rule. */ |
abca4eba | 641 | p = (const char *)s; |
f8f72644 | 642 | } |
6dfd07d0 WD |
643 | if (!*s) |
644 | return NULL; | |
645 | ||
b6f06b8e WD |
646 | new_mflags = mflags & MATCHFLGS_FROM_CONTAINER; |
647 | ||
648 | /* Figure out what kind of a filter rule "s" is pointing at. Note | |
649 | * that if MATCHFLG_NO_PREFIXES is set, the rule is either an include | |
650 | * or an exclude based on the inheritance of the MATCHFLG_INCLUDE | |
651 | * flag (above). XFLG_OLD_PREFIXES indicates a compatibility mode | |
652 | * for old include/exclude patterns where just "+ " and "- " are | |
653 | * allowed as optional prefixes. */ | |
654 | if (mflags & MATCHFLG_NO_PREFIXES) { | |
a1ac8edd | 655 | if (*s == '!' && mflags & MATCHFLG_CVS_IGNORE) |
b6f06b8e WD |
656 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
657 | } else if (xflags & XFLG_OLD_PREFIXES) { | |
658 | if (*s == '-' && s[1] == ' ') { | |
659 | new_mflags &= ~MATCHFLG_INCLUDE; | |
660 | s += 2; | |
661 | } else if (*s == '+' && s[1] == ' ') { | |
662 | new_mflags |= MATCHFLG_INCLUDE; | |
663 | s += 2; | |
664 | } | |
665 | if (*s == '!') | |
666 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ | |
667 | } else { | |
a1ac8edd | 668 | char ch = 0, *mods = ""; |
6dfd07d0 | 669 | switch (*s) { |
a1ac8edd | 670 | case 'c': |
345e0988 | 671 | if ((s = RULE_STRCMP(s, "clear")) != NULL) |
a1ac8edd WD |
672 | ch = '!'; |
673 | break; | |
674 | case 'd': | |
345e0988 | 675 | if ((s = RULE_STRCMP(s, "dir-merge")) != NULL) |
a1ac8edd WD |
676 | ch = ':'; |
677 | break; | |
678 | case 'e': | |
345e0988 | 679 | if ((s = RULE_STRCMP(s, "exclude")) != NULL) |
a1ac8edd WD |
680 | ch = '-'; |
681 | break; | |
ed243f8c WD |
682 | case 'h': |
683 | if ((s = RULE_STRCMP(s, "hide")) != NULL) | |
684 | ch = 'H'; | |
685 | break; | |
a1ac8edd | 686 | case 'i': |
345e0988 | 687 | if ((s = RULE_STRCMP(s, "include")) != NULL) |
a1ac8edd WD |
688 | ch = '+'; |
689 | break; | |
690 | case 'm': | |
345e0988 | 691 | if ((s = RULE_STRCMP(s, "merge")) != NULL) |
a1ac8edd WD |
692 | ch = '.'; |
693 | break; | |
ed243f8c WD |
694 | case 'p': |
695 | if ((s = RULE_STRCMP(s, "protect")) != NULL) | |
696 | ch = 'P'; | |
697 | break; | |
698 | case 'r': | |
699 | if ((s = RULE_STRCMP(s, "risk")) != NULL) | |
700 | ch = 'R'; | |
701 | break; | |
702 | case 's': | |
703 | if ((s = RULE_STRCMP(s, "show")) != NULL) | |
704 | ch = 'S'; | |
705 | break; | |
706 | ||
a1ac8edd WD |
707 | default: |
708 | ch = *s; | |
64b761c1 WD |
709 | if (s[1] == ',') |
710 | s++; | |
a1ac8edd WD |
711 | break; |
712 | } | |
713 | switch (ch) { | |
6dfd07d0 | 714 | case ':': |
b6f06b8e WD |
715 | new_mflags |= MATCHFLG_PERDIR_MERGE |
716 | | MATCHFLG_FINISH_SETUP; | |
6dfd07d0 WD |
717 | /* FALL THROUGH */ |
718 | case '.': | |
b6f06b8e WD |
719 | new_mflags |= MATCHFLG_MERGE_FILE; |
720 | mods = MODIFIERS_INCL_EXCL MODIFIERS_MERGE_FILE; | |
6dfd07d0 WD |
721 | break; |
722 | case '+': | |
b6f06b8e | 723 | new_mflags |= MATCHFLG_INCLUDE; |
bf39270e | 724 | /* FALL THROUGH */ |
6dfd07d0 | 725 | case '-': |
b6f06b8e | 726 | mods = MODIFIERS_INCL_EXCL; |
6dfd07d0 | 727 | break; |
ed243f8c WD |
728 | case 'S': |
729 | new_mflags |= MATCHFLG_INCLUDE; | |
730 | /* FALL THROUGH */ | |
731 | case 'H': | |
732 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
733 | mods = MODIFIERS_HIDE_PROTECT; | |
734 | break; | |
735 | case 'R': | |
736 | new_mflags |= MATCHFLG_INCLUDE; | |
737 | /* FALL THROUGH */ | |
738 | case 'P': | |
739 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
740 | mods = MODIFIERS_HIDE_PROTECT; | |
741 | break; | |
6dfd07d0 | 742 | case '!': |
b6f06b8e | 743 | new_mflags |= MATCHFLG_CLEAR_LIST; |
6dfd07d0 WD |
744 | mods = NULL; |
745 | break; | |
746 | default: | |
747 | rprintf(FERROR, "Unknown filter rule: %s\n", p); | |
748 | exit_cleanup(RERR_SYNTAX); | |
749 | } | |
bf39270e | 750 | while (mods && *++s && *s != ' ' && *s != '_') { |
6dfd07d0 | 751 | if (strchr(mods, *s) == NULL) { |
b6f06b8e | 752 | if (mflags & MATCHFLG_WORD_SPLIT && isspace(*s)) { |
6dfd07d0 WD |
753 | s--; |
754 | break; | |
755 | } | |
b6f06b8e | 756 | invalid: |
6dfd07d0 | 757 | rprintf(FERROR, |
b6f06b8e | 758 | "invalid modifier sequence at '%c' in filter rule: %s\n", |
6dfd07d0 WD |
759 | *s, p); |
760 | exit_cleanup(RERR_SYNTAX); | |
761 | } | |
762 | switch (*s) { | |
763 | case '-': | |
b6f06b8e WD |
764 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
765 | goto invalid; | |
766 | new_mflags |= MATCHFLG_NO_PREFIXES; | |
6dfd07d0 WD |
767 | break; |
768 | case '+': | |
b6f06b8e WD |
769 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
770 | goto invalid; | |
771 | new_mflags |= MATCHFLG_NO_PREFIXES | |
772 | | MATCHFLG_INCLUDE; | |
6dfd07d0 | 773 | break; |
bf39270e | 774 | case '/': |
b6f06b8e | 775 | new_mflags |= MATCHFLG_ABS_PATH; |
bf39270e | 776 | break; |
f2ae9e85 | 777 | case '!': |
b6f06b8e | 778 | new_mflags |= MATCHFLG_NEGATE; |
f2ae9e85 | 779 | break; |
6dfd07d0 | 780 | case 'C': |
b6f06b8e WD |
781 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
782 | goto invalid; | |
b6f06b8e WD |
783 | new_mflags |= MATCHFLG_NO_PREFIXES |
784 | | MATCHFLG_WORD_SPLIT | |
fdc79501 WD |
785 | | MATCHFLG_NO_INHERIT |
786 | | MATCHFLG_CVS_IGNORE; | |
6dfd07d0 WD |
787 | break; |
788 | case 'e': | |
b6f06b8e | 789 | new_mflags |= MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
790 | break; |
791 | case 'n': | |
b6f06b8e | 792 | new_mflags |= MATCHFLG_NO_INHERIT; |
6dfd07d0 | 793 | break; |
ed243f8c WD |
794 | case 'r': |
795 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
796 | break; | |
797 | case 's': | |
798 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
799 | break; | |
0b2901b7 | 800 | case 'w': |
b6f06b8e | 801 | new_mflags |= MATCHFLG_WORD_SPLIT; |
6dfd07d0 WD |
802 | break; |
803 | } | |
804 | } | |
805 | if (*s) | |
806 | s++; | |
6dfd07d0 WD |
807 | } |
808 | ||
b6f06b8e | 809 | if (mflags & MATCHFLG_WORD_SPLIT) { |
fdc79501 | 810 | const uchar *cp = s; |
96d3590a WD |
811 | /* Token ends at whitespace or the end of the string. */ |
812 | while (!isspace(*cp) && *cp != '\0') | |
813 | cp++; | |
814 | len = cp - s; | |
815 | } else | |
0eeb1cf8 | 816 | len = strlen((char*)s); |
96d3590a | 817 | |
b6f06b8e WD |
818 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
819 | if (!(xflags & XFLG_OLD_PREFIXES) && len) { | |
6dfd07d0 WD |
820 | rprintf(FERROR, |
821 | "'!' rule has trailing characters: %s\n", p); | |
822 | exit_cleanup(RERR_SYNTAX); | |
823 | } | |
824 | if (len > 1) | |
b6f06b8e | 825 | new_mflags &= ~MATCHFLG_CLEAR_LIST; |
fdc79501 | 826 | } else if (!len && !(new_mflags & MATCHFLG_CVS_IGNORE)) { |
6dfd07d0 WD |
827 | rprintf(FERROR, "unexpected end of filter rule: %s\n", p); |
828 | exit_cleanup(RERR_SYNTAX); | |
829 | } | |
830 | ||
96d3590a | 831 | *len_ptr = len; |
b6f06b8e | 832 | *mflags_ptr = new_mflags; |
96d3590a | 833 | return (const char *)s; |
f8f72644 WD |
834 | } |
835 | ||
836 | ||
46db1850 WD |
837 | static char default_cvsignore[] = |
838 | /* These default ignored items come from the CVS manual. */ | |
839 | "RCS SCCS CVS CVS.adm RCSLOG cvslog.* tags TAGS" | |
840 | " .make.state .nse_depinfo *~ #* .#* ,* _$* *$" | |
841 | " *.old *.bak *.BAK *.orig *.rej .del-*" | |
842 | " *.a *.olb *.o *.obj *.so *.exe" | |
843 | " *.Z *.elc *.ln core" | |
844 | /* The rest we added to suit ourself. */ | |
845 | " .svn/"; | |
846 | ||
847 | static void get_cvs_excludes(uint32 mflags) | |
848 | { | |
849 | char *p, fname[MAXPATHLEN]; | |
850 | static int initialized = 0; | |
851 | ||
852 | if (initialized) | |
853 | return; | |
854 | initialized = 1; | |
855 | ||
856 | parse_rule(&cvs_filter_list, default_cvsignore, mflags, 0); | |
857 | ||
858 | p = module_id >= 0 && lp_use_chroot(module_id) ? "/" : getenv("HOME"); | |
859 | if (p && pathjoin(fname, MAXPATHLEN, p, ".cvsignore") < MAXPATHLEN) | |
860 | parse_filter_file(&cvs_filter_list, fname, mflags, 0); | |
861 | ||
862 | parse_rule(&cvs_filter_list, getenv("CVSIGNORE"), mflags, 0); | |
863 | } | |
864 | ||
865 | ||
fdc79501 WD |
866 | void parse_rule(struct filter_list_struct *listp, const char *pattern, |
867 | uint32 mflags, int xflags) | |
c627d613 | 868 | { |
fdc79501 WD |
869 | unsigned int pat_len; |
870 | uint32 new_mflags; | |
6dfd07d0 | 871 | const char *cp, *p; |
5be7fa93 | 872 | |
f8f72644 | 873 | if (!pattern) |
5e7dbaca | 874 | return; |
f8f72644 | 875 | |
b2aa573b | 876 | while (1) { |
6dfd07d0 | 877 | /* Remember that the returned string is NOT '\0' terminated! */ |
fdc79501 | 878 | cp = parse_rule_tok(pattern, mflags, xflags, |
b6f06b8e | 879 | &pat_len, &new_mflags); |
6dfd07d0 | 880 | if (!cp) |
b2aa573b | 881 | break; |
6dfd07d0 | 882 | if (pat_len >= MAXPATHLEN) { |
7842418b | 883 | rprintf(FERROR, "discarding over-long filter: %s\n", |
6dfd07d0 WD |
884 | cp); |
885 | continue; | |
886 | } | |
887 | pattern = cp + pat_len; | |
5e972dcf | 888 | |
b6f06b8e | 889 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
de91e757 WD |
890 | if (verbose > 2) { |
891 | rprintf(FINFO, | |
7842418b | 892 | "[%s] clearing filter list%s\n", |
de91e757 WD |
893 | who_am_i(), listp->debug_type); |
894 | } | |
7842418b | 895 | clear_filter_list(listp); |
5e972dcf WD |
896 | continue; |
897 | } | |
b2aa573b | 898 | |
b6f06b8e | 899 | if (new_mflags & MATCHFLG_MERGE_FILE) { |
fdc79501 WD |
900 | unsigned int len; |
901 | if (!pat_len) { | |
902 | cp = ".cvsignore"; | |
903 | pat_len = 10; | |
904 | } | |
905 | len = pat_len; | |
b6f06b8e | 906 | if (new_mflags & MATCHFLG_EXCLUDE_SELF) { |
6dfd07d0 WD |
907 | const char *name = strrchr(cp, '/'); |
908 | if (name) | |
909 | len -= ++name - cp; | |
910 | else | |
911 | name = cp; | |
fdc79501 | 912 | add_rule(listp, name, len, 0, 0); |
b6f06b8e | 913 | new_mflags &= ~MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
914 | len = pat_len; |
915 | } | |
b6f06b8e | 916 | if (new_mflags & MATCHFLG_PERDIR_MERGE) { |
6dfd07d0 | 917 | if (parent_dirscan) { |
b6f06b8e WD |
918 | if (!(p = parse_merge_name(cp, &len, |
919 | module_dirlen))) | |
6dfd07d0 | 920 | continue; |
fdc79501 | 921 | add_rule(listp, p, len, new_mflags, 0); |
6dfd07d0 WD |
922 | continue; |
923 | } | |
924 | } else { | |
6dfd07d0 WD |
925 | if (!(p = parse_merge_name(cp, &len, 0))) |
926 | continue; | |
fdc79501 WD |
927 | parse_filter_file(listp, p, new_mflags, |
928 | XFLG_FATAL_ERRORS); | |
6dfd07d0 WD |
929 | continue; |
930 | } | |
f8f72644 | 931 | } |
6dfd07d0 | 932 | |
fdc79501 WD |
933 | add_rule(listp, cp, pat_len, new_mflags, xflags); |
934 | ||
935 | if (new_mflags & MATCHFLG_CVS_IGNORE | |
936 | && !(new_mflags & MATCHFLG_MERGE_FILE)) | |
46db1850 | 937 | get_cvs_excludes(new_mflags); |
8c35542d | 938 | } |
c627d613 AT |
939 | } |
940 | ||
c627d613 | 941 | |
fdc79501 WD |
942 | void parse_filter_file(struct filter_list_struct *listp, const char *fname, |
943 | uint32 mflags, int xflags) | |
c627d613 | 944 | { |
5e7dbaca | 945 | FILE *fp; |
7842418b | 946 | char line[MAXPATHLEN+MAX_RULE_PREFIX+1]; /* +1 for trailing slash. */ |
7cd72c79 | 947 | char *eob = line + sizeof line - 1; |
b6f06b8e | 948 | int word_split = mflags & MATCHFLG_WORD_SPLIT; |
ccdff3eb | 949 | |
5be7fa93 WD |
950 | if (!fname || !*fname) |
951 | return; | |
952 | ||
5a016db9 WD |
953 | if (*fname != '-' || fname[1] || am_server) { |
954 | if (server_filter_list.head) { | |
955 | strlcpy(line, fname, sizeof line); | |
956 | clean_fname(line, 1); | |
957 | if (check_filter(&server_filter_list, line, 0) < 0) | |
958 | fp = NULL; | |
959 | else | |
960 | fp = fopen(line, "rb"); | |
961 | } else | |
962 | fp = fopen(fname, "rb"); | |
963 | } else | |
5e7dbaca | 964 | fp = stdin; |
bf39270e WD |
965 | |
966 | if (verbose > 2) { | |
fdc79501 | 967 | rprintf(FINFO, "[%s] parse_filter_file(%s,%x,%x)%s\n", |
b6f06b8e | 968 | who_am_i(), safe_fname(fname), mflags, xflags, |
bf39270e WD |
969 | fp ? "" : " [not found]"); |
970 | } | |
971 | ||
5e7dbaca | 972 | if (!fp) { |
f8f72644 | 973 | if (xflags & XFLG_FATAL_ERRORS) { |
a039749b | 974 | rsyserr(FERROR, errno, |
6dfd07d0 | 975 | "failed to open %sclude file %s", |
b6f06b8e | 976 | mflags & MATCHFLG_INCLUDE ? "in" : "ex", |
6dfd07d0 | 977 | safe_fname(fname)); |
65417579 | 978 | exit_cleanup(RERR_FILEIO); |
2b6b4d53 | 979 | } |
5be7fa93 | 980 | return; |
2b6b4d53 | 981 | } |
6dfd07d0 WD |
982 | dirbuf[dirbuf_len] = '\0'; |
983 | ||
ccdff3eb | 984 | while (1) { |
5e7dbaca | 985 | char *s = line; |
619d21ff | 986 | int ch, overflow = 0; |
ccdff3eb | 987 | while (1) { |
5e7dbaca WD |
988 | if ((ch = getc(fp)) == EOF) { |
989 | if (ferror(fp) && errno == EINTR) | |
ccdff3eb WD |
990 | continue; |
991 | break; | |
992 | } | |
40d38dc0 WD |
993 | if (word_split && isspace(ch)) |
994 | break; | |
ccdff3eb WD |
995 | if (eol_nulls? !ch : (ch == '\n' || ch == '\r')) |
996 | break; | |
997 | if (s < eob) | |
998 | *s++ = ch; | |
619d21ff WD |
999 | else |
1000 | overflow = 1; | |
1001 | } | |
1002 | if (overflow) { | |
7842418b | 1003 | rprintf(FERROR, "discarding over-long filter: %s...\n", line); |
619d21ff | 1004 | s = line; |
ccdff3eb WD |
1005 | } |
1006 | *s = '\0'; | |
7f0feb4d WD |
1007 | /* Skip an empty token and (when line parsing) comments. */ |
1008 | if (*line && (word_split || (*line != ';' && *line != '#'))) | |
fdc79501 | 1009 | parse_rule(listp, line, mflags, xflags); |
5e7dbaca | 1010 | if (ch == EOF) |
ccdff3eb | 1011 | break; |
2b6b4d53 | 1012 | } |
5e7dbaca | 1013 | fclose(fp); |
c627d613 AT |
1014 | } |
1015 | ||
a261103c | 1016 | /* If the "for_xfer" flag is set, the prefix is made compatible with the |
fdc79501 WD |
1017 | * current protocol_version (if possible) or a NULL is returned (if not |
1018 | * possible). */ | |
a261103c | 1019 | char *get_rule_prefix(int match_flags, const char *pat, int for_xfer, |
fdc79501 | 1020 | unsigned int *plen_ptr) |
417b5999 WD |
1021 | { |
1022 | static char buf[MAX_RULE_PREFIX+1]; | |
1023 | char *op = buf; | |
a261103c | 1024 | int legal_len = for_xfer && protocol_version < 29 ? 1 : MAX_RULE_PREFIX; |
417b5999 WD |
1025 | |
1026 | if (match_flags & MATCHFLG_PERDIR_MERGE) { | |
fdc79501 WD |
1027 | if (legal_len == 1) |
1028 | return NULL; | |
417b5999 | 1029 | *op++ = ':'; |
fdc79501 WD |
1030 | } else if (match_flags & MATCHFLG_INCLUDE) |
1031 | *op++ = '+'; | |
1032 | else if (legal_len != 1 | |
1033 | || ((*pat == '-' || *pat == '+') && pat[1] == ' ')) | |
1034 | *op++ = '-'; | |
1035 | else | |
1036 | legal_len = 0; | |
1037 | ||
fdc79501 WD |
1038 | if (match_flags & MATCHFLG_CVS_IGNORE) |
1039 | *op++ = 'C'; | |
1040 | else { | |
417b5999 WD |
1041 | if (match_flags & MATCHFLG_NO_INHERIT) |
1042 | *op++ = 'n'; | |
d09e800a WD |
1043 | if (match_flags & MATCHFLG_WORD_SPLIT) |
1044 | *op++ = 'w'; | |
417b5999 WD |
1045 | if (match_flags & MATCHFLG_NO_PREFIXES) { |
1046 | if (match_flags & MATCHFLG_INCLUDE) | |
1047 | *op++ = '+'; | |
1048 | else | |
1049 | *op++ = '-'; | |
1050 | } | |
417b5999 | 1051 | } |
46db1850 WD |
1052 | if (match_flags & MATCHFLG_EXCLUDE_SELF) |
1053 | *op++ = 'e'; | |
ed243f8c WD |
1054 | if (match_flags & MATCHFLG_SENDER_SIDE |
1055 | && (!for_xfer || protocol_version >= 29)) | |
1056 | *op++ = 's'; | |
1057 | if (match_flags & MATCHFLG_RECEIVER_SIDE | |
1058 | && (!for_xfer || protocol_version >= 29 | |
1059 | || (delete_excluded && am_sender))) | |
1060 | *op++ = 'r'; | |
fdc79501 WD |
1061 | if (legal_len) |
1062 | *op++ = ' '; | |
448797a1 WD |
1063 | if (op - buf > legal_len) |
1064 | return NULL; | |
417b5999 WD |
1065 | *op = '\0'; |
1066 | if (plen_ptr) | |
1067 | *plen_ptr = op - buf; | |
417b5999 WD |
1068 | return buf; |
1069 | } | |
c627d613 | 1070 | |
fdc79501 | 1071 | static void send_rules(int f_out, struct filter_list_struct *flp) |
c627d613 | 1072 | { |
ed243f8c | 1073 | struct filter_struct *ent, *prev = NULL; |
25cf8893 | 1074 | |
fdc79501 | 1075 | for (ent = flp->head; ent; ent = ent->next) { |
417b5999 | 1076 | unsigned int len, plen, dlen; |
ed243f8c | 1077 | int elide = 0; |
417b5999 | 1078 | char *p; |
2fb139c1 | 1079 | |
ed243f8c WD |
1080 | if (ent->match_flags & MATCHFLG_SENDER_SIDE) |
1081 | elide = am_sender ? 1 : -1; | |
1082 | if (ent->match_flags & MATCHFLG_RECEIVER_SIDE) | |
1083 | elide = elide ? 0 : am_sender ? -1 : 1; | |
1084 | else if (delete_excluded && !elide) | |
1085 | elide = am_sender ? 1 : -1; | |
1086 | if (elide < 0) { | |
1087 | if (prev) | |
1088 | prev->next = ent->next; | |
1089 | else | |
1090 | flp->head = ent->next; | |
1091 | } else | |
1092 | prev = ent; | |
1093 | if (elide > 0) | |
1094 | continue; | |
fdc79501 WD |
1095 | if (ent->match_flags & MATCHFLG_CVS_IGNORE |
1096 | && !(ent->match_flags & MATCHFLG_MERGE_FILE)) { | |
ed243f8c WD |
1097 | int f = am_sender || protocol_version < 29 ? f_out : -1; |
1098 | send_rules(f, &cvs_filter_list); | |
1099 | if (f >= 0) | |
417b5999 | 1100 | continue; |
fdc79501 WD |
1101 | } |
1102 | p = get_rule_prefix(ent->match_flags, ent->pattern, 1, &plen); | |
1103 | if (!p) { | |
417b5999 | 1104 | rprintf(FERROR, |
fdc79501 | 1105 | "filter rules are too modern for remote rsync.\n"); |
417b5999 | 1106 | exit_cleanup(RERR_SYNTAX); |
5f5be796 | 1107 | } |
ed243f8c WD |
1108 | if (f_out < 0) |
1109 | continue; | |
fdc79501 | 1110 | len = strlen(ent->pattern); |
417b5999 | 1111 | dlen = ent->match_flags & MATCHFLG_DIRECTORY ? 1 : 0; |
fdc79501 WD |
1112 | if (!(plen + len + dlen)) |
1113 | continue; | |
1114 | write_int(f_out, plen + len + dlen); | |
417b5999 | 1115 | if (plen) |
fdc79501 WD |
1116 | write_buf(f_out, p, plen); |
1117 | write_buf(f_out, ent->pattern, len); | |
417b5999 | 1118 | if (dlen) |
fdc79501 | 1119 | write_byte(f_out, '/'); |
0f2ac855 | 1120 | } |
ed243f8c | 1121 | flp->tail = prev; |
c627d613 AT |
1122 | } |
1123 | ||
fdc79501 WD |
1124 | /* This is only called by the client. */ |
1125 | void send_filter_list(int f_out) | |
1126 | { | |
ed243f8c WD |
1127 | int receiver_wants_list = delete_mode |
1128 | && (!delete_excluded || protocol_version >= 29); | |
448797a1 WD |
1129 | |
1130 | if (local_server || (am_sender && !receiver_wants_list)) | |
fdc79501 WD |
1131 | f_out = -1; |
1132 | if (cvs_exclude && am_sender) { | |
1133 | if (protocol_version >= 29) | |
1134 | parse_rule(&filter_list, ":C", 0, 0); | |
1135 | parse_rule(&filter_list, "-C", 0, 0); | |
1136 | } | |
c627d613 | 1137 | |
fdc79501 WD |
1138 | /* This is a complete hack - blame Rusty. FIXME! |
1139 | * Remove this hack when older rsyncs (below 2.6.4) are gone. */ | |
1140 | if (list_only == 1 && !recurse) | |
1141 | parse_rule(&filter_list, "/*/*", MATCHFLG_NO_PREFIXES, 0); | |
1142 | ||
ed243f8c WD |
1143 | send_rules(f_out, &filter_list); |
1144 | ||
1145 | if (f_out >= 0) | |
fdc79501 | 1146 | write_int(f_out, 0); |
fdc79501 WD |
1147 | |
1148 | if (cvs_exclude) { | |
1149 | if (!am_sender || protocol_version < 29) | |
1150 | parse_rule(&filter_list, ":C", 0, 0); | |
1151 | if (!am_sender) | |
1152 | parse_rule(&filter_list, "-C", 0, 0); | |
1153 | } | |
1154 | } | |
1155 | ||
1156 | /* This is only called by the server. */ | |
1157 | void recv_filter_list(int f_in) | |
c627d613 | 1158 | { |
7842418b | 1159 | char line[MAXPATHLEN+MAX_RULE_PREFIX+1]; /* +1 for trailing slash. */ |
fdc79501 | 1160 | int xflags = protocol_version >= 29 ? 0 : XFLG_OLD_PREFIXES; |
ed243f8c WD |
1161 | int receiver_wants_list = delete_mode |
1162 | && (!delete_excluded || protocol_version >= 29); | |
fdc79501 WD |
1163 | unsigned int len; |
1164 | ||
448797a1 | 1165 | if (!local_server && (am_sender || receiver_wants_list)) { |
fdc79501 WD |
1166 | while ((len = read_int(f_in)) != 0) { |
1167 | if (len >= sizeof line) | |
1168 | overflow("recv_rules"); | |
1169 | read_sbuf(f_in, line, len); | |
1170 | parse_rule(&filter_list, line, 0, xflags); | |
1171 | } | |
1172 | } | |
9dd891bb | 1173 | |
fdc79501 | 1174 | if (cvs_exclude) { |
1412da7c | 1175 | if (local_server || am_sender || protocol_version < 29) |
fdc79501 | 1176 | parse_rule(&filter_list, ":C", 0, 0); |
1412da7c | 1177 | if (local_server || am_sender) |
fdc79501 | 1178 | parse_rule(&filter_list, "-C", 0, 0); |
651443a7 | 1179 | } |
ed243f8c WD |
1180 | |
1181 | if (local_server) /* filter out any rules that aren't for us. */ | |
1182 | send_rules(-1, &filter_list); | |
651443a7 | 1183 | } |