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