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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 | ||
4fc8140a | 136 | /* These flags also indicate that we're reading a list that |
6d7b3d52 | 137 | * needs to be filtered now, not post-filtered later. */ |
4fc8140a | 138 | if (xflags & (XFLG_ANCHORED2ABS|XFLG_ABS_IF_SLASH)) { |
6d7b3d52 WD |
139 | uint32 mf = mflags & (MATCHFLG_RECEIVER_SIDE|MATCHFLG_SENDER_SIDE); |
140 | if (am_sender) { | |
141 | if (mf == MATCHFLG_RECEIVER_SIDE) | |
142 | return; | |
143 | } else { | |
144 | if (mf == MATCHFLG_SENDER_SIDE) | |
145 | return; | |
146 | } | |
147 | } | |
148 | ||
fdc79501 WD |
149 | if (!(ret = new(struct filter_struct))) |
150 | out_of_memory("add_rule"); | |
5f5be796 | 151 | memset(ret, 0, sizeof ret[0]); |
2b6b4d53 | 152 | |
4fc8140a WD |
153 | if (!(mflags & (MATCHFLG_ABS_PATH | MATCHFLG_MERGE_FILE)) |
154 | && ((xflags & (XFLG_ANCHORED2ABS|XFLG_ABS_IF_SLASH) && *pat == '/') | |
155 | || (xflags & XFLG_ABS_IF_SLASH && strchr(pat, '/') != NULL))) { | |
bf39270e | 156 | mflags |= MATCHFLG_ABS_PATH; |
4fc8140a WD |
157 | if (*pat == '/') |
158 | ex_len = dirbuf_len - module_dirlen - 1; | |
159 | else | |
160 | ex_len = 0; | |
6dfd07d0 | 161 | } else |
f8f72644 | 162 | ex_len = 0; |
fdc79501 WD |
163 | if (!(ret->pattern = new_array(char, ex_len + pat_len + 1))) |
164 | out_of_memory("add_rule"); | |
f8f72644 | 165 | if (ex_len) |
6dfd07d0 | 166 | memcpy(ret->pattern, dirbuf + module_dirlen, ex_len); |
5e972dcf | 167 | strlcpy(ret->pattern + ex_len, pat, pat_len + 1); |
f8f72644 WD |
168 | pat_len += ex_len; |
169 | ||
170 | if (strpbrk(ret->pattern, "*[?")) { | |
5e972dcf | 171 | mflags |= MATCHFLG_WILD; |
96d3590a | 172 | if ((cp = strstr(ret->pattern, "**")) != NULL) { |
5e972dcf | 173 | mflags |= MATCHFLG_WILD2; |
170381c0 | 174 | /* If the pattern starts with **, note that. */ |
96d3590a | 175 | if (cp == ret->pattern) |
5e972dcf | 176 | mflags |= MATCHFLG_WILD2_PREFIX; |
0f2ac855 | 177 | } |
2bca43f6 | 178 | } |
c627d613 | 179 | |
5be7fa93 WD |
180 | if (pat_len > 1 && ret->pattern[pat_len-1] == '/') { |
181 | ret->pattern[pat_len-1] = 0; | |
5e972dcf | 182 | mflags |= MATCHFLG_DIRECTORY; |
2b6b4d53 | 183 | } |
c627d613 | 184 | |
6dfd07d0 | 185 | if (mflags & MATCHFLG_PERDIR_MERGE) { |
7842418b | 186 | struct filter_list_struct *lp; |
6dfd07d0 WD |
187 | unsigned int len; |
188 | int i; | |
189 | ||
190 | if ((cp = strrchr(ret->pattern, '/')) != NULL) | |
191 | cp++; | |
192 | else | |
193 | cp = ret->pattern; | |
194 | ||
195 | /* If the local merge file was already mentioned, don't | |
196 | * add it again. */ | |
197 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b | 198 | struct filter_struct *ex = mergelist_parents[i]; |
6dfd07d0 WD |
199 | const char *s = strrchr(ex->pattern, '/'); |
200 | if (s) | |
bf39270e | 201 | s++; |
6dfd07d0 | 202 | else |
bf39270e | 203 | s = ex->pattern; |
6dfd07d0 WD |
204 | len = strlen(s); |
205 | if (len == pat_len - (cp - ret->pattern) | |
206 | && memcmp(s, cp, len) == 0) { | |
7842418b | 207 | free_filter(ret); |
6dfd07d0 WD |
208 | return; |
209 | } | |
210 | } | |
211 | ||
7842418b | 212 | if (!(lp = new_array(struct filter_list_struct, 1))) |
fdc79501 | 213 | out_of_memory("add_rule"); |
6dfd07d0 | 214 | lp->head = lp->tail = NULL; |
fdc79501 WD |
215 | if (asprintf(&lp->debug_type, " [per-dir %s]", cp) < 0) |
216 | out_of_memory("add_rule"); | |
6dfd07d0 WD |
217 | ret->u.mergelist = lp; |
218 | ||
219 | if (mergelist_cnt == mergelist_size) { | |
220 | mergelist_size += 5; | |
221 | mergelist_parents = realloc_array(mergelist_parents, | |
7842418b | 222 | struct filter_struct *, |
6dfd07d0 WD |
223 | mergelist_size); |
224 | if (!mergelist_parents) | |
fdc79501 | 225 | out_of_memory("add_rule"); |
6dfd07d0 WD |
226 | } |
227 | mergelist_parents[mergelist_cnt++] = ret; | |
228 | } else { | |
229 | for (cp = ret->pattern; (cp = strchr(cp, '/')) != NULL; cp++) | |
230 | ret->u.slash_cnt++; | |
231 | } | |
0944563e | 232 | |
c1b29492 WD |
233 | ret->match_flags = mflags; |
234 | ||
6dfd07d0 WD |
235 | if (!listp->tail) { |
236 | ret->next = listp->head; | |
b2aa573b | 237 | listp->head = listp->tail = ret; |
6dfd07d0 WD |
238 | } else { |
239 | ret->next = listp->tail->next; | |
b2aa573b WD |
240 | listp->tail->next = ret; |
241 | listp->tail = ret; | |
242 | } | |
2b6b4d53 AT |
243 | } |
244 | ||
7842418b | 245 | static void clear_filter_list(struct filter_list_struct *listp) |
2b6b4d53 | 246 | { |
6dfd07d0 | 247 | if (listp->tail) { |
7842418b | 248 | struct filter_struct *ent, *next; |
6dfd07d0 WD |
249 | /* Truncate any inherited items from the local list. */ |
250 | listp->tail->next = NULL; | |
251 | /* Now free everything that is left. */ | |
252 | for (ent = listp->head; ent; ent = next) { | |
253 | next = ent->next; | |
7842418b | 254 | free_filter(ent); |
6dfd07d0 WD |
255 | } |
256 | } | |
257 | ||
258 | listp->head = listp->tail = NULL; | |
2b6b4d53 | 259 | } |
c627d613 | 260 | |
6dfd07d0 WD |
261 | /* This returns an expanded (absolute) filename for the merge-file name if |
262 | * the name has any slashes in it OR if the parent_dirscan var is True; | |
263 | * otherwise it returns the original merge_file name. If the len_ptr value | |
264 | * is non-NULL the merge_file name is limited by the referenced length | |
265 | * value and will be updated with the length of the resulting name. We | |
266 | * always return a name that is null terminated, even if the merge_file | |
267 | * name was not. */ | |
268 | static char *parse_merge_name(const char *merge_file, unsigned int *len_ptr, | |
269 | unsigned int prefix_skip) | |
5be7fa93 | 270 | { |
6dfd07d0 WD |
271 | static char buf[MAXPATHLEN]; |
272 | char *fn, tmpbuf[MAXPATHLEN]; | |
273 | unsigned int fn_len; | |
274 | ||
275 | if (!parent_dirscan && *merge_file != '/') { | |
276 | /* Return the name unchanged it doesn't have any slashes. */ | |
277 | if (len_ptr) { | |
278 | const char *p = merge_file + *len_ptr; | |
279 | while (--p > merge_file && *p != '/') {} | |
280 | if (p == merge_file) { | |
281 | strlcpy(buf, merge_file, *len_ptr + 1); | |
282 | return buf; | |
283 | } | |
284 | } else if (strchr(merge_file, '/') == NULL) | |
285 | return (char *)merge_file; | |
286 | } | |
5be7fa93 | 287 | |
6dfd07d0 WD |
288 | fn = *merge_file == '/' ? buf : tmpbuf; |
289 | if (sanitize_paths) { | |
290 | const char *r = prefix_skip ? "/" : NULL; | |
291 | /* null-terminate the name if it isn't already */ | |
292 | if (len_ptr && merge_file[*len_ptr]) { | |
293 | char *to = fn == buf ? tmpbuf : buf; | |
294 | strlcpy(to, merge_file, *len_ptr + 1); | |
295 | merge_file = to; | |
296 | } | |
297 | if (!sanitize_path(fn, merge_file, r, dirbuf_depth)) { | |
298 | rprintf(FERROR, "merge-file name overflows: %s\n", | |
a6126d67 | 299 | safe_fname(merge_file)); |
6dfd07d0 WD |
300 | return NULL; |
301 | } | |
302 | } else { | |
303 | strlcpy(fn, merge_file, len_ptr ? *len_ptr + 1 : MAXPATHLEN); | |
304 | clean_fname(fn, 1); | |
b2aa573b | 305 | } |
6dfd07d0 WD |
306 | |
307 | fn_len = strlen(fn); | |
308 | if (fn == buf) | |
309 | goto done; | |
310 | ||
311 | if (dirbuf_len + fn_len >= MAXPATHLEN) { | |
a6126d67 WD |
312 | rprintf(FERROR, "merge-file name overflows: %s\n", |
313 | safe_fname(fn)); | |
6dfd07d0 WD |
314 | return NULL; |
315 | } | |
316 | memcpy(buf, dirbuf + prefix_skip, dirbuf_len - prefix_skip); | |
317 | memcpy(buf + dirbuf_len - prefix_skip, fn, fn_len + 1); | |
318 | fn_len = clean_fname(buf, 1); | |
319 | ||
320 | done: | |
321 | if (len_ptr) | |
322 | *len_ptr = fn_len; | |
323 | return buf; | |
324 | } | |
5be7fa93 | 325 | |
6dfd07d0 | 326 | /* Sets the dirbuf and dirbuf_len values. */ |
7842418b | 327 | void set_filter_dir(const char *dir, unsigned int dirlen) |
6dfd07d0 WD |
328 | { |
329 | unsigned int len; | |
330 | if (*dir != '/') { | |
331 | memcpy(dirbuf, curr_dir, curr_dir_len); | |
332 | dirbuf[curr_dir_len] = '/'; | |
333 | len = curr_dir_len + 1; | |
334 | if (len + dirlen >= MAXPATHLEN) | |
335 | dirlen = 0; | |
336 | } else | |
337 | len = 0; | |
338 | memcpy(dirbuf + len, dir, dirlen); | |
339 | dirbuf[dirlen + len] = '\0'; | |
340 | dirbuf_len = clean_fname(dirbuf, 1); | |
341 | if (dirbuf_len > 1 && dirbuf[dirbuf_len-1] == '.' | |
342 | && dirbuf[dirbuf_len-2] == '/') | |
343 | dirbuf_len -= 2; | |
344 | if (dirbuf_len != 1) | |
345 | dirbuf[dirbuf_len++] = '/'; | |
346 | dirbuf[dirbuf_len] = '\0'; | |
347 | if (sanitize_paths) | |
348 | dirbuf_depth = count_dir_elements(dirbuf + module_dirlen); | |
349 | } | |
350 | ||
351 | /* This routine takes a per-dir merge-file entry and finishes its setup. | |
352 | * If the name has a path portion then we check to see if it refers to a | |
353 | * parent directory of the first transfer dir. If it does, we scan all the | |
354 | * dirs from that point through the parent dir of the transfer dir looking | |
355 | * for the per-dir merge-file in each one. */ | |
7842418b | 356 | static BOOL setup_merge_file(struct filter_struct *ex, |
b6f06b8e | 357 | struct filter_list_struct *lp) |
6dfd07d0 WD |
358 | { |
359 | char buf[MAXPATHLEN]; | |
360 | char *x, *y, *pat = ex->pattern; | |
361 | unsigned int len; | |
362 | ||
363 | if (!(x = parse_merge_name(pat, NULL, 0)) || *x != '/') | |
364 | return 0; | |
365 | ||
366 | y = strrchr(x, '/'); | |
367 | *y = '\0'; | |
368 | ex->pattern = strdup(y+1); | |
369 | if (!*x) | |
370 | x = "/"; | |
371 | if (*x == '/') | |
372 | strlcpy(buf, x, MAXPATHLEN); | |
373 | else | |
374 | pathjoin(buf, MAXPATHLEN, dirbuf, x); | |
375 | ||
376 | len = clean_fname(buf, 1); | |
377 | if (len != 1 && len < MAXPATHLEN-1) { | |
378 | buf[len++] = '/'; | |
379 | buf[len] = '\0'; | |
380 | } | |
381 | /* This ensures that the specified dir is a parent of the transfer. */ | |
382 | for (x = buf, y = dirbuf; *x && *x == *y; x++, y++) {} | |
383 | if (*x) | |
384 | y += strlen(y); /* nope -- skip the scan */ | |
385 | ||
386 | parent_dirscan = True; | |
387 | while (*y) { | |
388 | char save[MAXPATHLEN]; | |
389 | strlcpy(save, y, MAXPATHLEN); | |
390 | *y = '\0'; | |
391 | dirbuf_len = y - dirbuf; | |
392 | strlcpy(x, ex->pattern, MAXPATHLEN - (x - buf)); | |
fdc79501 | 393 | parse_filter_file(lp, buf, ex->match_flags, XFLG_ANCHORED2ABS); |
6dfd07d0 WD |
394 | if (ex->match_flags & MATCHFLG_NO_INHERIT) |
395 | lp->head = NULL; | |
396 | lp->tail = NULL; | |
397 | strlcpy(y, save, MAXPATHLEN); | |
398 | while ((*x++ = *y++) != '/') {} | |
399 | } | |
400 | parent_dirscan = False; | |
401 | free(pat); | |
402 | return 1; | |
403 | } | |
404 | ||
405 | /* Each time rsync changes to a new directory it call this function to | |
406 | * handle all the per-dir merge-files. The "dir" value is the current path | |
407 | * relative to curr_dir (which might not be null-terminated). We copy it | |
408 | * into dirbuf so that we can easily append a file name on the end. */ | |
7842418b | 409 | void *push_local_filters(const char *dir, unsigned int dirlen) |
6dfd07d0 | 410 | { |
7842418b | 411 | struct filter_list_struct *ap, *push; |
6dfd07d0 WD |
412 | int i; |
413 | ||
7842418b | 414 | set_filter_dir(dir, dirlen); |
6dfd07d0 | 415 | |
a2b371cd WD |
416 | if (!mergelist_cnt) |
417 | return NULL; | |
418 | ||
7842418b | 419 | push = new_array(struct filter_list_struct, mergelist_cnt); |
6dfd07d0 | 420 | if (!push) |
7842418b | 421 | out_of_memory("push_local_filters"); |
6dfd07d0 WD |
422 | |
423 | for (i = 0, ap = push; i < mergelist_cnt; i++) { | |
424 | memcpy(ap++, mergelist_parents[i]->u.mergelist, | |
7842418b | 425 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
426 | } |
427 | ||
fdc79501 | 428 | /* Note: parse_filter_file() might increase mergelist_cnt, so keep |
6dfd07d0 WD |
429 | * this loop separate from the above loop. */ |
430 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b WD |
431 | struct filter_struct *ex = mergelist_parents[i]; |
432 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
433 | |
434 | if (verbose > 2) { | |
7842418b | 435 | rprintf(FINFO, "[%s] pushing filter list%s\n", |
6dfd07d0 WD |
436 | who_am_i(), lp->debug_type); |
437 | } | |
438 | ||
439 | lp->tail = NULL; /* Switch any local rules to inherited. */ | |
440 | if (ex->match_flags & MATCHFLG_NO_INHERIT) | |
441 | lp->head = NULL; | |
6dfd07d0 WD |
442 | |
443 | if (ex->match_flags & MATCHFLG_FINISH_SETUP) { | |
444 | ex->match_flags &= ~MATCHFLG_FINISH_SETUP; | |
b6f06b8e | 445 | if (setup_merge_file(ex, lp)) |
7842418b | 446 | set_filter_dir(dir, dirlen); |
6dfd07d0 WD |
447 | } |
448 | ||
449 | if (strlcpy(dirbuf + dirbuf_len, ex->pattern, | |
b6f06b8e | 450 | MAXPATHLEN - dirbuf_len) < MAXPATHLEN - dirbuf_len) { |
fdc79501 WD |
451 | parse_filter_file(lp, dirbuf, ex->match_flags, |
452 | XFLG_ANCHORED2ABS); | |
b6f06b8e | 453 | } else { |
6dfd07d0 WD |
454 | io_error |= IOERR_GENERAL; |
455 | rprintf(FINFO, | |
7842418b | 456 | "cannot add local filter rules in long-named directory: %s\n", |
6dfd07d0 WD |
457 | full_fname(dirbuf)); |
458 | } | |
459 | dirbuf[dirbuf_len] = '\0'; | |
460 | } | |
461 | ||
462 | return (void*)push; | |
463 | } | |
464 | ||
7842418b | 465 | void pop_local_filters(void *mem) |
6dfd07d0 | 466 | { |
7842418b | 467 | struct filter_list_struct *ap, *pop = (struct filter_list_struct*)mem; |
6dfd07d0 WD |
468 | int i; |
469 | ||
470 | for (i = mergelist_cnt; i-- > 0; ) { | |
7842418b WD |
471 | struct filter_struct *ex = mergelist_parents[i]; |
472 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
473 | |
474 | if (verbose > 2) { | |
7842418b | 475 | rprintf(FINFO, "[%s] popping filter list%s\n", |
6dfd07d0 WD |
476 | who_am_i(), lp->debug_type); |
477 | } | |
478 | ||
7842418b | 479 | clear_filter_list(lp); |
6dfd07d0 WD |
480 | } |
481 | ||
a2b371cd WD |
482 | if (!pop) |
483 | return; | |
484 | ||
6dfd07d0 WD |
485 | for (i = 0, ap = pop; i < mergelist_cnt; i++) { |
486 | memcpy(mergelist_parents[i]->u.mergelist, ap++, | |
7842418b | 487 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
488 | } |
489 | ||
490 | free(pop); | |
5be7fa93 WD |
491 | } |
492 | ||
7842418b | 493 | static int rule_matches(char *name, struct filter_struct *ex, int name_is_dir) |
2b6b4d53 | 494 | { |
9f186578 | 495 | char *p, full_name[MAXPATHLEN]; |
0f2ac855 | 496 | int match_start = 0; |
f2ae9e85 | 497 | int ret_match = ex->match_flags & MATCHFLG_NEGATE ? 0 : 1; |
2b6b4d53 AT |
498 | char *pattern = ex->pattern; |
499 | ||
9f186578 WD |
500 | if (!*name) |
501 | return 0; | |
502 | ||
170381c0 WD |
503 | /* If the pattern does not have any slashes AND it does not have |
504 | * a "**" (which could match a slash), then we just match the | |
505 | * name portion of the path. */ | |
6dfd07d0 | 506 | if (!ex->u.slash_cnt && !(ex->match_flags & MATCHFLG_WILD2)) { |
5be7fa93 WD |
507 | if ((p = strrchr(name,'/')) != NULL) |
508 | name = p+1; | |
509 | } | |
9f186578 | 510 | else if (ex->match_flags & MATCHFLG_ABS_PATH && *name != '/' |
6dfd07d0 WD |
511 | && curr_dir_len > module_dirlen + 1) { |
512 | pathjoin(full_name, sizeof full_name, | |
513 | curr_dir + module_dirlen + 1, name); | |
5be7fa93 WD |
514 | name = full_name; |
515 | } | |
2b6b4d53 | 516 | |
5e972dcf | 517 | if (ex->match_flags & MATCHFLG_DIRECTORY && !name_is_dir) |
f2ae9e85 | 518 | return !ret_match; |
2b6b4d53 | 519 | |
170381c0 | 520 | if (*pattern == '/') { |
2b6b4d53 AT |
521 | match_start = 1; |
522 | pattern++; | |
170381c0 WD |
523 | if (*name == '/') |
524 | name++; | |
2b6b4d53 AT |
525 | } |
526 | ||
170381c0 | 527 | if (ex->match_flags & MATCHFLG_WILD) { |
170381c0 WD |
528 | /* A non-anchored match with an infix slash and no "**" |
529 | * needs to match the last slash_cnt+1 name elements. */ | |
6dfd07d0 | 530 | if (!match_start && ex->u.slash_cnt |
5e972dcf | 531 | && !(ex->match_flags & MATCHFLG_WILD2)) { |
6dfd07d0 | 532 | int cnt = ex->u.slash_cnt + 1; |
170381c0 WD |
533 | for (p = name + strlen(name) - 1; p >= name; p--) { |
534 | if (*p == '/' && !--cnt) | |
535 | break; | |
536 | } | |
537 | name = p+1; | |
538 | } | |
fe332038 | 539 | if (wildmatch(pattern, name)) |
f2ae9e85 | 540 | return ret_match; |
170381c0 WD |
541 | if (ex->match_flags & MATCHFLG_WILD2_PREFIX) { |
542 | /* If the **-prefixed pattern has a '/' as the next | |
543 | * character, then try to match the rest of the | |
544 | * pattern at the root. */ | |
fe332038 | 545 | if (pattern[2] == '/' && wildmatch(pattern+3, name)) |
f2ae9e85 | 546 | return ret_match; |
c36cd317 | 547 | } |
170381c0 WD |
548 | else if (!match_start && ex->match_flags & MATCHFLG_WILD2) { |
549 | /* A non-anchored match with an infix or trailing "**" | |
550 | * (but not a prefixed "**") needs to try matching | |
551 | * after every slash. */ | |
552 | while ((name = strchr(name, '/')) != NULL) { | |
553 | name++; | |
fe332038 | 554 | if (wildmatch(pattern, name)) |
f2ae9e85 | 555 | return ret_match; |
170381c0 WD |
556 | } |
557 | } | |
558 | } else if (match_start) { | |
559 | if (strcmp(name,pattern) == 0) | |
f2ae9e85 | 560 | return ret_match; |
2b6b4d53 AT |
561 | } else { |
562 | int l1 = strlen(name); | |
ea2111d1 | 563 | int l2 = strlen(pattern); |
0f2ac855 | 564 | if (l2 <= l1 && |
ea2111d1 | 565 | strcmp(name+(l1-l2),pattern) == 0 && |
170381c0 | 566 | (l1==l2 || name[l1-(l2+1)] == '/')) { |
f2ae9e85 | 567 | return ret_match; |
c36cd317 | 568 | } |
2b6b4d53 AT |
569 | } |
570 | ||
f2ae9e85 | 571 | return !ret_match; |
c627d613 AT |
572 | } |
573 | ||
574 | ||
7842418b WD |
575 | static void report_filter_result(char const *name, |
576 | struct filter_struct const *ent, | |
577 | int name_is_dir, const char *type) | |
d567322f | 578 | { |
0f2ac855 | 579 | /* If a trailing slash is present to match only directories, |
fdc79501 | 580 | * then it is stripped out by add_rule(). So as a special |
0f2ac855 WD |
581 | * case we add it back in here. */ |
582 | ||
ea847c62 | 583 | if (verbose >= 2) { |
6dfd07d0 | 584 | rprintf(FINFO, "[%s] %scluding %s %s because of pattern %s%s%s\n", |
5e972dcf WD |
585 | who_am_i(), |
586 | ent->match_flags & MATCHFLG_INCLUDE ? "in" : "ex", | |
6dfd07d0 WD |
587 | name_is_dir ? "directory" : "file", name, ent->pattern, |
588 | ent->match_flags & MATCHFLG_DIRECTORY ? "/" : "", type); | |
ea847c62 | 589 | } |
d567322f MP |
590 | } |
591 | ||
592 | ||
593 | /* | |
a6536635 WD |
594 | * Return -1 if file "name" is defined to be excluded by the specified |
595 | * exclude list, 1 if it is included, and 0 if it was not matched. | |
d567322f | 596 | */ |
7842418b | 597 | int check_filter(struct filter_list_struct *listp, char *name, int name_is_dir) |
c627d613 | 598 | { |
7842418b | 599 | struct filter_struct *ent; |
c627d613 | 600 | |
b2aa573b | 601 | for (ent = listp->head; ent; ent = ent->next) { |
6dfd07d0 | 602 | if (ent->match_flags & MATCHFLG_PERDIR_MERGE) { |
7842418b WD |
603 | int rc = check_filter(ent->u.mergelist, name, |
604 | name_is_dir); | |
6dfd07d0 WD |
605 | if (rc) |
606 | return rc; | |
607 | continue; | |
608 | } | |
fdc79501 WD |
609 | if (ent->match_flags & MATCHFLG_CVS_IGNORE) { |
610 | int rc = check_filter(&cvs_filter_list, name, | |
611 | name_is_dir); | |
612 | if (rc) | |
613 | return rc; | |
614 | continue; | |
615 | } | |
7842418b WD |
616 | if (rule_matches(name, ent, name_is_dir)) { |
617 | report_filter_result(name, ent, name_is_dir, | |
67340e95 | 618 | listp->debug_type); |
5e972dcf | 619 | return ent->match_flags & MATCHFLG_INCLUDE ? 1 : -1; |
0f2ac855 | 620 | } |
2b6b4d53 | 621 | } |
c627d613 | 622 | |
2b6b4d53 | 623 | return 0; |
c627d613 AT |
624 | } |
625 | ||
345e0988 | 626 | #define RULE_STRCMP(s,r) rule_strcmp((s), (r), sizeof (r) - 1) |
a1ac8edd | 627 | |
4adbb5f2 | 628 | static const uchar *rule_strcmp(const uchar *str, const char *rule, int rule_len) |
a1ac8edd | 629 | { |
4adbb5f2 | 630 | if (strncmp((char*)str, rule, rule_len) != 0) |
a1ac8edd WD |
631 | return NULL; |
632 | if (isspace(str[rule_len]) || str[rule_len] == '_' || !str[rule_len]) | |
633 | return str + rule_len - 1; | |
634 | if (str[rule_len] == ',') | |
635 | return str + rule_len; | |
636 | return NULL; | |
637 | } | |
c627d613 | 638 | |
f8f72644 WD |
639 | /* Get the next include/exclude arg from the string. The token will not |
640 | * be '\0' terminated, so use the returned length to limit the string. | |
641 | * Also, be sure to add this length to the returned pointer before passing | |
e425fbe8 | 642 | * it back to ask for the next token. This routine parses the "!" (list- |
b6f06b8e WD |
643 | * clearing) token and (depending on the mflags) the various prefixes. |
644 | * The *mflags_ptr value will be set on exit to the new MATCHFLG_* bits | |
645 | * for the current token. */ | |
fdc79501 WD |
646 | static const char *parse_rule_tok(const char *p, uint32 mflags, int xflags, |
647 | unsigned int *len_ptr, uint32 *mflags_ptr) | |
f8f72644 | 648 | { |
fdc79501 WD |
649 | const uchar *s = (const uchar *)p; |
650 | uint32 new_mflags; | |
651 | unsigned int len; | |
f8f72644 | 652 | |
b6f06b8e | 653 | if (mflags & MATCHFLG_WORD_SPLIT) { |
96d3590a WD |
654 | /* Skip over any initial whitespace. */ |
655 | while (isspace(*s)) | |
f8f72644 | 656 | s++; |
6dfd07d0 | 657 | /* Update to point to real start of rule. */ |
abca4eba | 658 | p = (const char *)s; |
f8f72644 | 659 | } |
6dfd07d0 WD |
660 | if (!*s) |
661 | return NULL; | |
662 | ||
b6f06b8e WD |
663 | new_mflags = mflags & MATCHFLGS_FROM_CONTAINER; |
664 | ||
665 | /* Figure out what kind of a filter rule "s" is pointing at. Note | |
666 | * that if MATCHFLG_NO_PREFIXES is set, the rule is either an include | |
667 | * or an exclude based on the inheritance of the MATCHFLG_INCLUDE | |
668 | * flag (above). XFLG_OLD_PREFIXES indicates a compatibility mode | |
669 | * for old include/exclude patterns where just "+ " and "- " are | |
670 | * allowed as optional prefixes. */ | |
671 | if (mflags & MATCHFLG_NO_PREFIXES) { | |
a1ac8edd | 672 | if (*s == '!' && mflags & MATCHFLG_CVS_IGNORE) |
b6f06b8e WD |
673 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
674 | } else if (xflags & XFLG_OLD_PREFIXES) { | |
675 | if (*s == '-' && s[1] == ' ') { | |
676 | new_mflags &= ~MATCHFLG_INCLUDE; | |
677 | s += 2; | |
678 | } else if (*s == '+' && s[1] == ' ') { | |
679 | new_mflags |= MATCHFLG_INCLUDE; | |
680 | s += 2; | |
664cf327 | 681 | } else if (*s == '!') |
b6f06b8e WD |
682 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
683 | } else { | |
a1ac8edd | 684 | char ch = 0, *mods = ""; |
6dfd07d0 | 685 | switch (*s) { |
a1ac8edd | 686 | case 'c': |
345e0988 | 687 | if ((s = RULE_STRCMP(s, "clear")) != NULL) |
a1ac8edd WD |
688 | ch = '!'; |
689 | break; | |
690 | case 'd': | |
345e0988 | 691 | if ((s = RULE_STRCMP(s, "dir-merge")) != NULL) |
a1ac8edd WD |
692 | ch = ':'; |
693 | break; | |
694 | case 'e': | |
345e0988 | 695 | if ((s = RULE_STRCMP(s, "exclude")) != NULL) |
a1ac8edd WD |
696 | ch = '-'; |
697 | break; | |
ed243f8c WD |
698 | case 'h': |
699 | if ((s = RULE_STRCMP(s, "hide")) != NULL) | |
700 | ch = 'H'; | |
701 | break; | |
a1ac8edd | 702 | case 'i': |
345e0988 | 703 | if ((s = RULE_STRCMP(s, "include")) != NULL) |
a1ac8edd WD |
704 | ch = '+'; |
705 | break; | |
706 | case 'm': | |
345e0988 | 707 | if ((s = RULE_STRCMP(s, "merge")) != NULL) |
a1ac8edd WD |
708 | ch = '.'; |
709 | break; | |
ed243f8c WD |
710 | case 'p': |
711 | if ((s = RULE_STRCMP(s, "protect")) != NULL) | |
712 | ch = 'P'; | |
713 | break; | |
714 | case 'r': | |
715 | if ((s = RULE_STRCMP(s, "risk")) != NULL) | |
716 | ch = 'R'; | |
717 | break; | |
718 | case 's': | |
719 | if ((s = RULE_STRCMP(s, "show")) != NULL) | |
720 | ch = 'S'; | |
721 | break; | |
a1ac8edd WD |
722 | default: |
723 | ch = *s; | |
64b761c1 WD |
724 | if (s[1] == ',') |
725 | s++; | |
a1ac8edd WD |
726 | break; |
727 | } | |
728 | switch (ch) { | |
6dfd07d0 | 729 | case ':': |
b6f06b8e WD |
730 | new_mflags |= MATCHFLG_PERDIR_MERGE |
731 | | MATCHFLG_FINISH_SETUP; | |
6dfd07d0 WD |
732 | /* FALL THROUGH */ |
733 | case '.': | |
b6f06b8e WD |
734 | new_mflags |= MATCHFLG_MERGE_FILE; |
735 | mods = MODIFIERS_INCL_EXCL MODIFIERS_MERGE_FILE; | |
6dfd07d0 WD |
736 | break; |
737 | case '+': | |
b6f06b8e | 738 | new_mflags |= MATCHFLG_INCLUDE; |
bf39270e | 739 | /* FALL THROUGH */ |
6dfd07d0 | 740 | case '-': |
b6f06b8e | 741 | mods = MODIFIERS_INCL_EXCL; |
6dfd07d0 | 742 | break; |
ed243f8c WD |
743 | case 'S': |
744 | new_mflags |= MATCHFLG_INCLUDE; | |
745 | /* FALL THROUGH */ | |
746 | case 'H': | |
747 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
748 | mods = MODIFIERS_HIDE_PROTECT; | |
749 | break; | |
750 | case 'R': | |
751 | new_mflags |= MATCHFLG_INCLUDE; | |
752 | /* FALL THROUGH */ | |
753 | case 'P': | |
754 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
755 | mods = MODIFIERS_HIDE_PROTECT; | |
756 | break; | |
6dfd07d0 | 757 | case '!': |
b6f06b8e | 758 | new_mflags |= MATCHFLG_CLEAR_LIST; |
6dfd07d0 WD |
759 | mods = NULL; |
760 | break; | |
761 | default: | |
ac1cb938 | 762 | rprintf(FERROR, "Unknown filter rule: `%s'\n", p); |
6dfd07d0 WD |
763 | exit_cleanup(RERR_SYNTAX); |
764 | } | |
bf39270e | 765 | while (mods && *++s && *s != ' ' && *s != '_') { |
6dfd07d0 | 766 | if (strchr(mods, *s) == NULL) { |
b6f06b8e | 767 | if (mflags & MATCHFLG_WORD_SPLIT && isspace(*s)) { |
6dfd07d0 WD |
768 | s--; |
769 | break; | |
770 | } | |
b6f06b8e | 771 | invalid: |
6dfd07d0 | 772 | rprintf(FERROR, |
b6f06b8e | 773 | "invalid modifier sequence at '%c' in filter rule: %s\n", |
6dfd07d0 WD |
774 | *s, p); |
775 | exit_cleanup(RERR_SYNTAX); | |
776 | } | |
777 | switch (*s) { | |
778 | case '-': | |
b6f06b8e WD |
779 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
780 | goto invalid; | |
781 | new_mflags |= MATCHFLG_NO_PREFIXES; | |
6dfd07d0 WD |
782 | break; |
783 | case '+': | |
b6f06b8e WD |
784 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
785 | goto invalid; | |
786 | new_mflags |= MATCHFLG_NO_PREFIXES | |
787 | | MATCHFLG_INCLUDE; | |
6dfd07d0 | 788 | break; |
bf39270e | 789 | case '/': |
b6f06b8e | 790 | new_mflags |= MATCHFLG_ABS_PATH; |
bf39270e | 791 | break; |
f2ae9e85 | 792 | case '!': |
b6f06b8e | 793 | new_mflags |= MATCHFLG_NEGATE; |
f2ae9e85 | 794 | break; |
6dfd07d0 | 795 | case 'C': |
b6f06b8e WD |
796 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
797 | goto invalid; | |
b6f06b8e WD |
798 | new_mflags |= MATCHFLG_NO_PREFIXES |
799 | | MATCHFLG_WORD_SPLIT | |
fdc79501 WD |
800 | | MATCHFLG_NO_INHERIT |
801 | | MATCHFLG_CVS_IGNORE; | |
6dfd07d0 WD |
802 | break; |
803 | case 'e': | |
b6f06b8e | 804 | new_mflags |= MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
805 | break; |
806 | case 'n': | |
b6f06b8e | 807 | new_mflags |= MATCHFLG_NO_INHERIT; |
6dfd07d0 | 808 | break; |
ed243f8c WD |
809 | case 'r': |
810 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
811 | break; | |
812 | case 's': | |
813 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
814 | break; | |
0b2901b7 | 815 | case 'w': |
b6f06b8e | 816 | new_mflags |= MATCHFLG_WORD_SPLIT; |
6dfd07d0 WD |
817 | break; |
818 | } | |
819 | } | |
820 | if (*s) | |
821 | s++; | |
6dfd07d0 WD |
822 | } |
823 | ||
b6f06b8e | 824 | if (mflags & MATCHFLG_WORD_SPLIT) { |
fdc79501 | 825 | const uchar *cp = s; |
96d3590a WD |
826 | /* Token ends at whitespace or the end of the string. */ |
827 | while (!isspace(*cp) && *cp != '\0') | |
828 | cp++; | |
829 | len = cp - s; | |
830 | } else | |
0eeb1cf8 | 831 | len = strlen((char*)s); |
96d3590a | 832 | |
b6f06b8e | 833 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
35a388b1 WD |
834 | if (!(mflags & MATCHFLG_NO_PREFIXES) |
835 | && !(xflags & XFLG_OLD_PREFIXES) && len) { | |
6dfd07d0 WD |
836 | rprintf(FERROR, |
837 | "'!' rule has trailing characters: %s\n", p); | |
838 | exit_cleanup(RERR_SYNTAX); | |
839 | } | |
840 | if (len > 1) | |
b6f06b8e | 841 | new_mflags &= ~MATCHFLG_CLEAR_LIST; |
fdc79501 | 842 | } else if (!len && !(new_mflags & MATCHFLG_CVS_IGNORE)) { |
6dfd07d0 WD |
843 | rprintf(FERROR, "unexpected end of filter rule: %s\n", p); |
844 | exit_cleanup(RERR_SYNTAX); | |
845 | } | |
846 | ||
96d3590a | 847 | *len_ptr = len; |
b6f06b8e | 848 | *mflags_ptr = new_mflags; |
96d3590a | 849 | return (const char *)s; |
f8f72644 WD |
850 | } |
851 | ||
852 | ||
46db1850 WD |
853 | static char default_cvsignore[] = |
854 | /* These default ignored items come from the CVS manual. */ | |
855 | "RCS SCCS CVS CVS.adm RCSLOG cvslog.* tags TAGS" | |
856 | " .make.state .nse_depinfo *~ #* .#* ,* _$* *$" | |
857 | " *.old *.bak *.BAK *.orig *.rej .del-*" | |
858 | " *.a *.olb *.o *.obj *.so *.exe" | |
859 | " *.Z *.elc *.ln core" | |
860 | /* The rest we added to suit ourself. */ | |
861 | " .svn/"; | |
862 | ||
863 | static void get_cvs_excludes(uint32 mflags) | |
864 | { | |
865 | char *p, fname[MAXPATHLEN]; | |
866 | static int initialized = 0; | |
867 | ||
868 | if (initialized) | |
869 | return; | |
870 | initialized = 1; | |
871 | ||
872 | parse_rule(&cvs_filter_list, default_cvsignore, mflags, 0); | |
873 | ||
874 | p = module_id >= 0 && lp_use_chroot(module_id) ? "/" : getenv("HOME"); | |
875 | if (p && pathjoin(fname, MAXPATHLEN, p, ".cvsignore") < MAXPATHLEN) | |
876 | parse_filter_file(&cvs_filter_list, fname, mflags, 0); | |
877 | ||
878 | parse_rule(&cvs_filter_list, getenv("CVSIGNORE"), mflags, 0); | |
879 | } | |
880 | ||
881 | ||
fdc79501 WD |
882 | void parse_rule(struct filter_list_struct *listp, const char *pattern, |
883 | uint32 mflags, int xflags) | |
c627d613 | 884 | { |
fdc79501 WD |
885 | unsigned int pat_len; |
886 | uint32 new_mflags; | |
6dfd07d0 | 887 | const char *cp, *p; |
5be7fa93 | 888 | |
f8f72644 | 889 | if (!pattern) |
5e7dbaca | 890 | return; |
f8f72644 | 891 | |
b2aa573b | 892 | while (1) { |
6dfd07d0 | 893 | /* Remember that the returned string is NOT '\0' terminated! */ |
fdc79501 | 894 | cp = parse_rule_tok(pattern, mflags, xflags, |
b6f06b8e | 895 | &pat_len, &new_mflags); |
6dfd07d0 | 896 | if (!cp) |
b2aa573b | 897 | break; |
6dfd07d0 | 898 | if (pat_len >= MAXPATHLEN) { |
7842418b | 899 | rprintf(FERROR, "discarding over-long filter: %s\n", |
6dfd07d0 WD |
900 | cp); |
901 | continue; | |
902 | } | |
903 | pattern = cp + pat_len; | |
5e972dcf | 904 | |
b6f06b8e | 905 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
de91e757 WD |
906 | if (verbose > 2) { |
907 | rprintf(FINFO, | |
7842418b | 908 | "[%s] clearing filter list%s\n", |
de91e757 WD |
909 | who_am_i(), listp->debug_type); |
910 | } | |
7842418b | 911 | clear_filter_list(listp); |
5e972dcf WD |
912 | continue; |
913 | } | |
b2aa573b | 914 | |
b6f06b8e | 915 | if (new_mflags & MATCHFLG_MERGE_FILE) { |
fdc79501 WD |
916 | unsigned int len; |
917 | if (!pat_len) { | |
918 | cp = ".cvsignore"; | |
919 | pat_len = 10; | |
920 | } | |
921 | len = pat_len; | |
b6f06b8e | 922 | if (new_mflags & MATCHFLG_EXCLUDE_SELF) { |
6dfd07d0 WD |
923 | const char *name = strrchr(cp, '/'); |
924 | if (name) | |
925 | len -= ++name - cp; | |
926 | else | |
927 | name = cp; | |
fdc79501 | 928 | add_rule(listp, name, len, 0, 0); |
b6f06b8e | 929 | new_mflags &= ~MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
930 | len = pat_len; |
931 | } | |
b6f06b8e | 932 | if (new_mflags & MATCHFLG_PERDIR_MERGE) { |
6dfd07d0 | 933 | if (parent_dirscan) { |
b6f06b8e WD |
934 | if (!(p = parse_merge_name(cp, &len, |
935 | module_dirlen))) | |
6dfd07d0 | 936 | continue; |
fdc79501 | 937 | add_rule(listp, p, len, new_mflags, 0); |
6dfd07d0 WD |
938 | continue; |
939 | } | |
940 | } else { | |
6dfd07d0 WD |
941 | if (!(p = parse_merge_name(cp, &len, 0))) |
942 | continue; | |
fdc79501 WD |
943 | parse_filter_file(listp, p, new_mflags, |
944 | XFLG_FATAL_ERRORS); | |
6dfd07d0 WD |
945 | continue; |
946 | } | |
f8f72644 | 947 | } |
6dfd07d0 | 948 | |
fdc79501 WD |
949 | add_rule(listp, cp, pat_len, new_mflags, xflags); |
950 | ||
951 | if (new_mflags & MATCHFLG_CVS_IGNORE | |
952 | && !(new_mflags & MATCHFLG_MERGE_FILE)) | |
46db1850 | 953 | get_cvs_excludes(new_mflags); |
8c35542d | 954 | } |
c627d613 AT |
955 | } |
956 | ||
c627d613 | 957 | |
fdc79501 WD |
958 | void parse_filter_file(struct filter_list_struct *listp, const char *fname, |
959 | uint32 mflags, int xflags) | |
c627d613 | 960 | { |
5e7dbaca | 961 | FILE *fp; |
3fac51e2 | 962 | char line[BIGPATHBUFLEN]; |
7cd72c79 | 963 | char *eob = line + sizeof line - 1; |
b6f06b8e | 964 | int word_split = mflags & MATCHFLG_WORD_SPLIT; |
ccdff3eb | 965 | |
5be7fa93 WD |
966 | if (!fname || !*fname) |
967 | return; | |
968 | ||
5a016db9 WD |
969 | if (*fname != '-' || fname[1] || am_server) { |
970 | if (server_filter_list.head) { | |
971 | strlcpy(line, fname, sizeof line); | |
972 | clean_fname(line, 1); | |
973 | if (check_filter(&server_filter_list, line, 0) < 0) | |
974 | fp = NULL; | |
975 | else | |
976 | fp = fopen(line, "rb"); | |
977 | } else | |
978 | fp = fopen(fname, "rb"); | |
979 | } else | |
5e7dbaca | 980 | fp = stdin; |
bf39270e WD |
981 | |
982 | if (verbose > 2) { | |
fdc79501 | 983 | rprintf(FINFO, "[%s] parse_filter_file(%s,%x,%x)%s\n", |
b6f06b8e | 984 | who_am_i(), safe_fname(fname), mflags, xflags, |
bf39270e WD |
985 | fp ? "" : " [not found]"); |
986 | } | |
987 | ||
5e7dbaca | 988 | if (!fp) { |
f8f72644 | 989 | if (xflags & XFLG_FATAL_ERRORS) { |
a039749b | 990 | rsyserr(FERROR, errno, |
6dfd07d0 | 991 | "failed to open %sclude file %s", |
b6f06b8e | 992 | mflags & MATCHFLG_INCLUDE ? "in" : "ex", |
6dfd07d0 | 993 | safe_fname(fname)); |
65417579 | 994 | exit_cleanup(RERR_FILEIO); |
2b6b4d53 | 995 | } |
5be7fa93 | 996 | return; |
2b6b4d53 | 997 | } |
6dfd07d0 WD |
998 | dirbuf[dirbuf_len] = '\0'; |
999 | ||
ccdff3eb | 1000 | while (1) { |
5e7dbaca | 1001 | char *s = line; |
619d21ff | 1002 | int ch, overflow = 0; |
ccdff3eb | 1003 | while (1) { |
5e7dbaca WD |
1004 | if ((ch = getc(fp)) == EOF) { |
1005 | if (ferror(fp) && errno == EINTR) | |
ccdff3eb WD |
1006 | continue; |
1007 | break; | |
1008 | } | |
40d38dc0 WD |
1009 | if (word_split && isspace(ch)) |
1010 | break; | |
ccdff3eb WD |
1011 | if (eol_nulls? !ch : (ch == '\n' || ch == '\r')) |
1012 | break; | |
1013 | if (s < eob) | |
1014 | *s++ = ch; | |
619d21ff WD |
1015 | else |
1016 | overflow = 1; | |
1017 | } | |
1018 | if (overflow) { | |
7842418b | 1019 | rprintf(FERROR, "discarding over-long filter: %s...\n", line); |
619d21ff | 1020 | s = line; |
ccdff3eb WD |
1021 | } |
1022 | *s = '\0'; | |
7f0feb4d WD |
1023 | /* Skip an empty token and (when line parsing) comments. */ |
1024 | if (*line && (word_split || (*line != ';' && *line != '#'))) | |
fdc79501 | 1025 | parse_rule(listp, line, mflags, xflags); |
5e7dbaca | 1026 | if (ch == EOF) |
ccdff3eb | 1027 | break; |
2b6b4d53 | 1028 | } |
5e7dbaca | 1029 | fclose(fp); |
c627d613 AT |
1030 | } |
1031 | ||
a261103c | 1032 | /* If the "for_xfer" flag is set, the prefix is made compatible with the |
fdc79501 WD |
1033 | * current protocol_version (if possible) or a NULL is returned (if not |
1034 | * possible). */ | |
a261103c | 1035 | char *get_rule_prefix(int match_flags, const char *pat, int for_xfer, |
fdc79501 | 1036 | unsigned int *plen_ptr) |
417b5999 WD |
1037 | { |
1038 | static char buf[MAX_RULE_PREFIX+1]; | |
1039 | char *op = buf; | |
2217b30a | 1040 | int legal_len = for_xfer && protocol_version < 29 ? 1 : MAX_RULE_PREFIX-1; |
417b5999 WD |
1041 | |
1042 | if (match_flags & MATCHFLG_PERDIR_MERGE) { | |
fdc79501 WD |
1043 | if (legal_len == 1) |
1044 | return NULL; | |
417b5999 | 1045 | *op++ = ':'; |
fdc79501 WD |
1046 | } else if (match_flags & MATCHFLG_INCLUDE) |
1047 | *op++ = '+'; | |
1048 | else if (legal_len != 1 | |
1049 | || ((*pat == '-' || *pat == '+') && pat[1] == ' ')) | |
1050 | *op++ = '-'; | |
1051 | else | |
1052 | legal_len = 0; | |
1053 | ||
fdc79501 WD |
1054 | if (match_flags & MATCHFLG_CVS_IGNORE) |
1055 | *op++ = 'C'; | |
1056 | else { | |
417b5999 WD |
1057 | if (match_flags & MATCHFLG_NO_INHERIT) |
1058 | *op++ = 'n'; | |
d09e800a WD |
1059 | if (match_flags & MATCHFLG_WORD_SPLIT) |
1060 | *op++ = 'w'; | |
417b5999 WD |
1061 | if (match_flags & MATCHFLG_NO_PREFIXES) { |
1062 | if (match_flags & MATCHFLG_INCLUDE) | |
1063 | *op++ = '+'; | |
1064 | else | |
1065 | *op++ = '-'; | |
1066 | } | |
417b5999 | 1067 | } |
46db1850 WD |
1068 | if (match_flags & MATCHFLG_EXCLUDE_SELF) |
1069 | *op++ = 'e'; | |
ed243f8c WD |
1070 | if (match_flags & MATCHFLG_SENDER_SIDE |
1071 | && (!for_xfer || protocol_version >= 29)) | |
1072 | *op++ = 's'; | |
1073 | if (match_flags & MATCHFLG_RECEIVER_SIDE | |
1074 | && (!for_xfer || protocol_version >= 29 | |
1075 | || (delete_excluded && am_sender))) | |
1076 | *op++ = 'r'; | |
448797a1 WD |
1077 | if (op - buf > legal_len) |
1078 | return NULL; | |
2217b30a WD |
1079 | if (legal_len) |
1080 | *op++ = ' '; | |
417b5999 WD |
1081 | *op = '\0'; |
1082 | if (plen_ptr) | |
1083 | *plen_ptr = op - buf; | |
417b5999 WD |
1084 | return buf; |
1085 | } | |
c627d613 | 1086 | |
fdc79501 | 1087 | static void send_rules(int f_out, struct filter_list_struct *flp) |
c627d613 | 1088 | { |
ed243f8c | 1089 | struct filter_struct *ent, *prev = NULL; |
25cf8893 | 1090 | |
fdc79501 | 1091 | for (ent = flp->head; ent; ent = ent->next) { |
417b5999 | 1092 | unsigned int len, plen, dlen; |
ed243f8c | 1093 | int elide = 0; |
417b5999 | 1094 | char *p; |
2fb139c1 | 1095 | |
ed243f8c WD |
1096 | if (ent->match_flags & MATCHFLG_SENDER_SIDE) |
1097 | elide = am_sender ? 1 : -1; | |
1098 | if (ent->match_flags & MATCHFLG_RECEIVER_SIDE) | |
1099 | elide = elide ? 0 : am_sender ? -1 : 1; | |
1100 | else if (delete_excluded && !elide) | |
1101 | elide = am_sender ? 1 : -1; | |
1102 | if (elide < 0) { | |
1103 | if (prev) | |
1104 | prev->next = ent->next; | |
1105 | else | |
1106 | flp->head = ent->next; | |
1107 | } else | |
1108 | prev = ent; | |
1109 | if (elide > 0) | |
1110 | continue; | |
fdc79501 WD |
1111 | if (ent->match_flags & MATCHFLG_CVS_IGNORE |
1112 | && !(ent->match_flags & MATCHFLG_MERGE_FILE)) { | |
98e47414 | 1113 | int f = am_sender || protocol_version < 29 ? f_out : -2; |
ed243f8c | 1114 | send_rules(f, &cvs_filter_list); |
98e47414 | 1115 | if (f == f_out) |
417b5999 | 1116 | continue; |
fdc79501 WD |
1117 | } |
1118 | p = get_rule_prefix(ent->match_flags, ent->pattern, 1, &plen); | |
1119 | if (!p) { | |
417b5999 | 1120 | rprintf(FERROR, |
fdc79501 | 1121 | "filter rules are too modern for remote rsync.\n"); |
417b5999 | 1122 | exit_cleanup(RERR_SYNTAX); |
5f5be796 | 1123 | } |
ed243f8c WD |
1124 | if (f_out < 0) |
1125 | continue; | |
fdc79501 | 1126 | len = strlen(ent->pattern); |
417b5999 | 1127 | dlen = ent->match_flags & MATCHFLG_DIRECTORY ? 1 : 0; |
fdc79501 WD |
1128 | if (!(plen + len + dlen)) |
1129 | continue; | |
1130 | write_int(f_out, plen + len + dlen); | |
417b5999 | 1131 | if (plen) |
fdc79501 WD |
1132 | write_buf(f_out, p, plen); |
1133 | write_buf(f_out, ent->pattern, len); | |
417b5999 | 1134 | if (dlen) |
fdc79501 | 1135 | write_byte(f_out, '/'); |
0f2ac855 | 1136 | } |
ed243f8c | 1137 | flp->tail = prev; |
c627d613 AT |
1138 | } |
1139 | ||
fdc79501 WD |
1140 | /* This is only called by the client. */ |
1141 | void send_filter_list(int f_out) | |
1142 | { | |
ed243f8c WD |
1143 | int receiver_wants_list = delete_mode |
1144 | && (!delete_excluded || protocol_version >= 29); | |
448797a1 WD |
1145 | |
1146 | if (local_server || (am_sender && !receiver_wants_list)) | |
fdc79501 WD |
1147 | f_out = -1; |
1148 | if (cvs_exclude && am_sender) { | |
1149 | if (protocol_version >= 29) | |
1150 | parse_rule(&filter_list, ":C", 0, 0); | |
1151 | parse_rule(&filter_list, "-C", 0, 0); | |
1152 | } | |
c627d613 | 1153 | |
fdc79501 WD |
1154 | /* This is a complete hack - blame Rusty. FIXME! |
1155 | * Remove this hack when older rsyncs (below 2.6.4) are gone. */ | |
1156 | if (list_only == 1 && !recurse) | |
1157 | parse_rule(&filter_list, "/*/*", MATCHFLG_NO_PREFIXES, 0); | |
1158 | ||
ed243f8c WD |
1159 | send_rules(f_out, &filter_list); |
1160 | ||
1161 | if (f_out >= 0) | |
fdc79501 | 1162 | write_int(f_out, 0); |
fdc79501 WD |
1163 | |
1164 | if (cvs_exclude) { | |
1165 | if (!am_sender || protocol_version < 29) | |
1166 | parse_rule(&filter_list, ":C", 0, 0); | |
1167 | if (!am_sender) | |
1168 | parse_rule(&filter_list, "-C", 0, 0); | |
1169 | } | |
1170 | } | |
1171 | ||
1172 | /* This is only called by the server. */ | |
1173 | void recv_filter_list(int f_in) | |
c627d613 | 1174 | { |
3fac51e2 | 1175 | char line[BIGPATHBUFLEN]; |
fdc79501 | 1176 | int xflags = protocol_version >= 29 ? 0 : XFLG_OLD_PREFIXES; |
ed243f8c WD |
1177 | int receiver_wants_list = delete_mode |
1178 | && (!delete_excluded || protocol_version >= 29); | |
fdc79501 WD |
1179 | unsigned int len; |
1180 | ||
448797a1 | 1181 | if (!local_server && (am_sender || receiver_wants_list)) { |
fdc79501 WD |
1182 | while ((len = read_int(f_in)) != 0) { |
1183 | if (len >= sizeof line) | |
a1f99493 | 1184 | overflow_exit("recv_rules"); |
fdc79501 WD |
1185 | read_sbuf(f_in, line, len); |
1186 | parse_rule(&filter_list, line, 0, xflags); | |
1187 | } | |
1188 | } | |
9dd891bb | 1189 | |
fdc79501 | 1190 | if (cvs_exclude) { |
1412da7c | 1191 | if (local_server || am_sender || protocol_version < 29) |
fdc79501 | 1192 | parse_rule(&filter_list, ":C", 0, 0); |
1412da7c | 1193 | if (local_server || am_sender) |
fdc79501 | 1194 | parse_rule(&filter_list, "-C", 0, 0); |
651443a7 | 1195 | } |
ed243f8c WD |
1196 | |
1197 | if (local_server) /* filter out any rules that aren't for us. */ | |
1198 | send_rules(-1, &filter_list); | |
651443a7 | 1199 | } |