Commit | Line | Data |
---|---|---|
0f78b815 WD |
1 | /* |
2 | * The filter include/exclude routines. | |
0f2ac855 | 3 | * |
0f78b815 WD |
4 | * Copyright (C) 1996-2001 Andrew Tridgell <tridge@samba.org> |
5 | * Copyright (C) 1996 Paul Mackerras | |
6 | * Copyright (C) 2002 Martin Pool | |
d3d07a5e | 7 | * Copyright (C) 2003-2008 Wayne Davison |
0f2ac855 | 8 | * |
07a874fd | 9 | * This program is free software; you can redistribute it and/or modify |
8e41b68e WD |
10 | * it under the terms of the GNU General Public License as published by |
11 | * the Free Software Foundation; either version 3 of the License, or | |
12 | * (at your option) any later version. | |
0f2ac855 | 13 | * |
07a874fd MP |
14 | * This program is distributed in the hope that it will be useful, |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
0f2ac855 | 18 | * |
e7c67065 | 19 | * You should have received a copy of the GNU General Public License along |
4fd842f9 | 20 | * with this program; if not, visit the http://fsf.org website. |
07a874fd | 21 | */ |
c627d613 | 22 | |
c627d613 AT |
23 | #include "rsync.h" |
24 | ||
25 | extern int verbose; | |
5a016db9 | 26 | extern int am_server; |
fdc79501 | 27 | extern int am_sender; |
40d38dc0 | 28 | extern int eol_nulls; |
6dfd07d0 | 29 | extern int io_error; |
1412da7c | 30 | extern int local_server; |
d5782b52 | 31 | extern int prune_empty_dirs; |
ccdb23bb | 32 | extern int ignore_perishable; |
fdc79501 WD |
33 | extern int delete_mode; |
34 | extern int delete_excluded; | |
35 | extern int cvs_exclude; | |
6dfd07d0 WD |
36 | extern int sanitize_paths; |
37 | extern int protocol_version; | |
bf39270e | 38 | extern int module_id; |
40d38dc0 WD |
39 | |
40 | extern char curr_dir[]; | |
6dfd07d0 WD |
41 | extern unsigned int curr_dir_len; |
42 | extern unsigned int module_dirlen; | |
c627d613 | 43 | |
7842418b | 44 | struct filter_list_struct filter_list = { 0, 0, "" }; |
c81a20fb | 45 | struct filter_list_struct cvs_filter_list = { 0, 0, " [global CVS]" }; |
819bfe45 | 46 | struct filter_list_struct daemon_filter_list = { 0, 0, " [daemon]" }; |
c627d613 | 47 | |
6dfd07d0 | 48 | /* Need room enough for ":MODS " prefix plus some room to grow. */ |
7842418b | 49 | #define MAX_RULE_PREFIX (16) |
6dfd07d0 | 50 | |
d727f0ff | 51 | #define MODIFIERS_MERGE_FILE "-+Cenw" |
ccdb23bb WD |
52 | #define MODIFIERS_INCL_EXCL "/!Crsp" |
53 | #define MODIFIERS_HIDE_PROTECT "/!p" | |
b6f06b8e | 54 | |
7842418b | 55 | /* The dirbuf is set by push_local_filters() to the current subdirectory |
6dfd07d0 WD |
56 | * relative to curr_dir that is being processed. The path always has a |
57 | * trailing slash appended, and the variable dirbuf_len contains the length | |
58 | * of this path prefix. The path is always absolute. */ | |
59 | static char dirbuf[MAXPATHLEN+1]; | |
60 | static unsigned int dirbuf_len = 0; | |
61 | static int dirbuf_depth; | |
62 | ||
63 | /* This is True when we're scanning parent dirs for per-dir merge-files. */ | |
64 | static BOOL parent_dirscan = False; | |
65 | ||
66 | /* This array contains a list of all the currently active per-dir merge | |
67 | * files. This makes it easier to save the appropriate values when we | |
68 | * "push" down into each subdirectory. */ | |
7842418b | 69 | static struct filter_struct **mergelist_parents; |
6dfd07d0 WD |
70 | static int mergelist_cnt = 0; |
71 | static int mergelist_size = 0; | |
72 | ||
7842418b | 73 | /* Each filter_list_struct describes a singly-linked list by keeping track |
6dfd07d0 WD |
74 | * of both the head and tail pointers. The list is slightly unusual in that |
75 | * a parent-dir's content can be appended to the end of the local list in a | |
76 | * special way: the last item in the local list has its "next" pointer set | |
77 | * to point to the inherited list, but the local list's tail pointer points | |
78 | * at the end of the local list. Thus, if the local list is empty, the head | |
79 | * will be pointing at the inherited content but the tail will be NULL. To | |
80 | * help you visualize this, here are the possible list arrangements: | |
81 | * | |
82 | * Completely Empty Local Content Only | |
83 | * ================================== ==================================== | |
84 | * head -> NULL head -> Local1 -> Local2 -> NULL | |
85 | * tail -> NULL tail -------------^ | |
86 | * | |
87 | * Inherited Content Only Both Local and Inherited Content | |
88 | * ================================== ==================================== | |
89 | * head -> Parent1 -> Parent2 -> NULL head -> L1 -> L2 -> P1 -> P2 -> NULL | |
90 | * tail -> NULL tail ---------^ | |
91 | * | |
92 | * This means that anyone wanting to traverse the whole list to use it just | |
93 | * needs to start at the head and use the "next" pointers until it goes | |
94 | * NULL. To add new local content, we insert the item after the tail item | |
95 | * and update the tail (obviously, if "tail" was NULL, we insert it at the | |
96 | * head). To clear the local list, WE MUST NOT FREE THE INHERITED CONTENT | |
97 | * because it is shared between the current list and our parent list(s). | |
98 | * The easiest way to handle this is to simply truncate the list after the | |
99 | * tail item and then free the local list from the head. When inheriting | |
7842418b | 100 | * the list for a new local dir, we just save off the filter_list_struct |
6dfd07d0 WD |
101 | * values (so we can pop back to them later) and set the tail to NULL. |
102 | */ | |
103 | ||
7842418b | 104 | static void free_filter(struct filter_struct *ex) |
6dfd07d0 WD |
105 | { |
106 | if (ex->match_flags & MATCHFLG_PERDIR_MERGE) { | |
107 | free(ex->u.mergelist->debug_type); | |
108 | free(ex->u.mergelist); | |
109 | mergelist_cnt--; | |
110 | } | |
111 | free(ex->pattern); | |
112 | free(ex); | |
113 | } | |
114 | ||
7842418b | 115 | /* Build a filter structure given a filter pattern. The value in "pat" |
6dfd07d0 | 116 | * is not null-terminated. */ |
fdc79501 WD |
117 | static void add_rule(struct filter_list_struct *listp, const char *pat, |
118 | unsigned int pat_len, uint32 mflags, int xflags) | |
c627d613 | 119 | { |
7842418b | 120 | struct filter_struct *ret; |
f8f72644 | 121 | const char *cp; |
4c74d44d | 122 | unsigned int pre_len, slash_cnt = 0; |
c627d613 | 123 | |
6dfd07d0 | 124 | if (verbose > 2) { |
fdc79501 WD |
125 | rprintf(FINFO, "[%s] add_rule(%s%.*s%s)%s\n", |
126 | who_am_i(), get_rule_prefix(mflags, pat, 0, NULL), | |
127 | (int)pat_len, pat, | |
128 | (mflags & MATCHFLG_DIRECTORY) ? "/" : "", | |
6dfd07d0 WD |
129 | listp->debug_type); |
130 | } | |
131 | ||
4fc8140a | 132 | /* These flags also indicate that we're reading a list that |
6d7b3d52 | 133 | * needs to be filtered now, not post-filtered later. */ |
4fc8140a | 134 | if (xflags & (XFLG_ANCHORED2ABS|XFLG_ABS_IF_SLASH)) { |
6d7b3d52 WD |
135 | uint32 mf = mflags & (MATCHFLG_RECEIVER_SIDE|MATCHFLG_SENDER_SIDE); |
136 | if (am_sender) { | |
137 | if (mf == MATCHFLG_RECEIVER_SIDE) | |
138 | return; | |
139 | } else { | |
140 | if (mf == MATCHFLG_SENDER_SIDE) | |
141 | return; | |
142 | } | |
143 | } | |
144 | ||
7e4b6b7b | 145 | if (!(ret = new0(struct filter_struct))) |
fdc79501 | 146 | out_of_memory("add_rule"); |
2b6b4d53 | 147 | |
4c74d44d WD |
148 | if (pat_len > 1 && pat[pat_len-1] == '/') { |
149 | pat_len--; | |
150 | mflags |= MATCHFLG_DIRECTORY; | |
151 | } | |
152 | ||
153 | for (cp = pat; cp < pat + pat_len; cp++) { | |
154 | if (*cp == '/') | |
155 | slash_cnt++; | |
156 | } | |
157 | ||
4fc8140a WD |
158 | if (!(mflags & (MATCHFLG_ABS_PATH | MATCHFLG_MERGE_FILE)) |
159 | && ((xflags & (XFLG_ANCHORED2ABS|XFLG_ABS_IF_SLASH) && *pat == '/') | |
4c74d44d | 160 | || (xflags & XFLG_ABS_IF_SLASH && slash_cnt))) { |
bf39270e | 161 | mflags |= MATCHFLG_ABS_PATH; |
4fc8140a | 162 | if (*pat == '/') |
4a86fbcd | 163 | pre_len = dirbuf_len - module_dirlen - 1; |
4fc8140a | 164 | else |
4a86fbcd | 165 | pre_len = 0; |
6dfd07d0 | 166 | } else |
4a86fbcd | 167 | pre_len = 0; |
4c74d44d | 168 | |
4a86fbcd | 169 | if (!(ret->pattern = new_array(char, pre_len + pat_len + 1))) |
fdc79501 | 170 | out_of_memory("add_rule"); |
4c74d44d | 171 | if (pre_len) { |
4a86fbcd | 172 | memcpy(ret->pattern, dirbuf + module_dirlen, pre_len); |
4c74d44d WD |
173 | for (cp = ret->pattern; cp < ret->pattern + pre_len; cp++) { |
174 | if (*cp == '/') | |
175 | slash_cnt++; | |
176 | } | |
177 | } | |
4a86fbcd WD |
178 | strlcpy(ret->pattern + pre_len, pat, pat_len + 1); |
179 | pat_len += pre_len; | |
f8f72644 WD |
180 | |
181 | if (strpbrk(ret->pattern, "*[?")) { | |
5e972dcf | 182 | mflags |= MATCHFLG_WILD; |
96d3590a | 183 | if ((cp = strstr(ret->pattern, "**")) != NULL) { |
5e972dcf | 184 | mflags |= MATCHFLG_WILD2; |
170381c0 | 185 | /* If the pattern starts with **, note that. */ |
96d3590a | 186 | if (cp == ret->pattern) |
5e972dcf | 187 | mflags |= MATCHFLG_WILD2_PREFIX; |
e5daa273 WD |
188 | /* If the pattern ends with ***, note that. */ |
189 | if (pat_len >= 3 | |
190 | && ret->pattern[pat_len-3] == '*' | |
191 | && ret->pattern[pat_len-2] == '*' | |
192 | && ret->pattern[pat_len-1] == '*') | |
193 | mflags |= MATCHFLG_WILD3_SUFFIX; | |
0f2ac855 | 194 | } |
2bca43f6 | 195 | } |
c627d613 | 196 | |
6dfd07d0 | 197 | if (mflags & MATCHFLG_PERDIR_MERGE) { |
7842418b | 198 | struct filter_list_struct *lp; |
6dfd07d0 WD |
199 | unsigned int len; |
200 | int i; | |
201 | ||
202 | if ((cp = strrchr(ret->pattern, '/')) != NULL) | |
203 | cp++; | |
204 | else | |
205 | cp = ret->pattern; | |
206 | ||
207 | /* If the local merge file was already mentioned, don't | |
208 | * add it again. */ | |
209 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b | 210 | struct filter_struct *ex = mergelist_parents[i]; |
6dfd07d0 WD |
211 | const char *s = strrchr(ex->pattern, '/'); |
212 | if (s) | |
bf39270e | 213 | s++; |
6dfd07d0 | 214 | else |
bf39270e | 215 | s = ex->pattern; |
6dfd07d0 WD |
216 | len = strlen(s); |
217 | if (len == pat_len - (cp - ret->pattern) | |
218 | && memcmp(s, cp, len) == 0) { | |
7842418b | 219 | free_filter(ret); |
6dfd07d0 WD |
220 | return; |
221 | } | |
222 | } | |
223 | ||
7842418b | 224 | if (!(lp = new_array(struct filter_list_struct, 1))) |
fdc79501 | 225 | out_of_memory("add_rule"); |
6dfd07d0 | 226 | lp->head = lp->tail = NULL; |
fdc79501 WD |
227 | if (asprintf(&lp->debug_type, " [per-dir %s]", cp) < 0) |
228 | out_of_memory("add_rule"); | |
6dfd07d0 WD |
229 | ret->u.mergelist = lp; |
230 | ||
231 | if (mergelist_cnt == mergelist_size) { | |
232 | mergelist_size += 5; | |
233 | mergelist_parents = realloc_array(mergelist_parents, | |
7842418b | 234 | struct filter_struct *, |
6dfd07d0 WD |
235 | mergelist_size); |
236 | if (!mergelist_parents) | |
fdc79501 | 237 | out_of_memory("add_rule"); |
6dfd07d0 WD |
238 | } |
239 | mergelist_parents[mergelist_cnt++] = ret; | |
4c74d44d WD |
240 | } else |
241 | ret->u.slash_cnt = slash_cnt; | |
0944563e | 242 | |
c1b29492 WD |
243 | ret->match_flags = mflags; |
244 | ||
6dfd07d0 WD |
245 | if (!listp->tail) { |
246 | ret->next = listp->head; | |
b2aa573b | 247 | listp->head = listp->tail = ret; |
6dfd07d0 WD |
248 | } else { |
249 | ret->next = listp->tail->next; | |
b2aa573b WD |
250 | listp->tail->next = ret; |
251 | listp->tail = ret; | |
252 | } | |
2b6b4d53 AT |
253 | } |
254 | ||
7842418b | 255 | static void clear_filter_list(struct filter_list_struct *listp) |
2b6b4d53 | 256 | { |
6dfd07d0 | 257 | if (listp->tail) { |
7842418b | 258 | struct filter_struct *ent, *next; |
6dfd07d0 WD |
259 | /* Truncate any inherited items from the local list. */ |
260 | listp->tail->next = NULL; | |
261 | /* Now free everything that is left. */ | |
262 | for (ent = listp->head; ent; ent = next) { | |
263 | next = ent->next; | |
7842418b | 264 | free_filter(ent); |
6dfd07d0 WD |
265 | } |
266 | } | |
267 | ||
268 | listp->head = listp->tail = NULL; | |
2b6b4d53 | 269 | } |
c627d613 | 270 | |
6dfd07d0 WD |
271 | /* This returns an expanded (absolute) filename for the merge-file name if |
272 | * the name has any slashes in it OR if the parent_dirscan var is True; | |
273 | * otherwise it returns the original merge_file name. If the len_ptr value | |
274 | * is non-NULL the merge_file name is limited by the referenced length | |
275 | * value and will be updated with the length of the resulting name. We | |
276 | * always return a name that is null terminated, even if the merge_file | |
277 | * name was not. */ | |
278 | static char *parse_merge_name(const char *merge_file, unsigned int *len_ptr, | |
279 | unsigned int prefix_skip) | |
5be7fa93 | 280 | { |
6dfd07d0 WD |
281 | static char buf[MAXPATHLEN]; |
282 | char *fn, tmpbuf[MAXPATHLEN]; | |
283 | unsigned int fn_len; | |
284 | ||
285 | if (!parent_dirscan && *merge_file != '/') { | |
286 | /* Return the name unchanged it doesn't have any slashes. */ | |
287 | if (len_ptr) { | |
288 | const char *p = merge_file + *len_ptr; | |
289 | while (--p > merge_file && *p != '/') {} | |
290 | if (p == merge_file) { | |
291 | strlcpy(buf, merge_file, *len_ptr + 1); | |
292 | return buf; | |
293 | } | |
294 | } else if (strchr(merge_file, '/') == NULL) | |
295 | return (char *)merge_file; | |
296 | } | |
5be7fa93 | 297 | |
6dfd07d0 WD |
298 | fn = *merge_file == '/' ? buf : tmpbuf; |
299 | if (sanitize_paths) { | |
300 | const char *r = prefix_skip ? "/" : NULL; | |
301 | /* null-terminate the name if it isn't already */ | |
302 | if (len_ptr && merge_file[*len_ptr]) { | |
303 | char *to = fn == buf ? tmpbuf : buf; | |
304 | strlcpy(to, merge_file, *len_ptr + 1); | |
305 | merge_file = to; | |
306 | } | |
d48810ba | 307 | if (!sanitize_path(fn, merge_file, r, dirbuf_depth, SP_DEFAULT)) { |
6dfd07d0 | 308 | rprintf(FERROR, "merge-file name overflows: %s\n", |
45c49b52 | 309 | merge_file); |
6dfd07d0 WD |
310 | return NULL; |
311 | } | |
798cde47 | 312 | fn_len = strlen(fn); |
6dfd07d0 WD |
313 | } else { |
314 | strlcpy(fn, merge_file, len_ptr ? *len_ptr + 1 : MAXPATHLEN); | |
b58bfb2f | 315 | fn_len = clean_fname(fn, CFN_COLLAPSE_DOT_DOT_DIRS); |
b2aa573b | 316 | } |
0f78b815 | 317 | |
798cde47 WD |
318 | /* If the name isn't in buf yet, it's wasn't absolute. */ |
319 | if (fn != buf) { | |
320 | if (dirbuf_len + fn_len >= MAXPATHLEN) { | |
321 | rprintf(FERROR, "merge-file name overflows: %s\n", fn); | |
322 | return NULL; | |
323 | } | |
324 | memcpy(buf, dirbuf + prefix_skip, dirbuf_len - prefix_skip); | |
325 | memcpy(buf + dirbuf_len - prefix_skip, fn, fn_len + 1); | |
b58bfb2f | 326 | fn_len = clean_fname(buf, CFN_COLLAPSE_DOT_DOT_DIRS); |
6dfd07d0 | 327 | } |
6dfd07d0 | 328 | |
6dfd07d0 WD |
329 | if (len_ptr) |
330 | *len_ptr = fn_len; | |
331 | return buf; | |
332 | } | |
5be7fa93 | 333 | |
6dfd07d0 | 334 | /* Sets the dirbuf and dirbuf_len values. */ |
7842418b | 335 | void set_filter_dir(const char *dir, unsigned int dirlen) |
6dfd07d0 WD |
336 | { |
337 | unsigned int len; | |
338 | if (*dir != '/') { | |
339 | memcpy(dirbuf, curr_dir, curr_dir_len); | |
340 | dirbuf[curr_dir_len] = '/'; | |
341 | len = curr_dir_len + 1; | |
342 | if (len + dirlen >= MAXPATHLEN) | |
343 | dirlen = 0; | |
344 | } else | |
345 | len = 0; | |
346 | memcpy(dirbuf + len, dir, dirlen); | |
347 | dirbuf[dirlen + len] = '\0'; | |
b58bfb2f | 348 | dirbuf_len = clean_fname(dirbuf, CFN_COLLAPSE_DOT_DOT_DIRS); |
6dfd07d0 WD |
349 | if (dirbuf_len > 1 && dirbuf[dirbuf_len-1] == '.' |
350 | && dirbuf[dirbuf_len-2] == '/') | |
351 | dirbuf_len -= 2; | |
352 | if (dirbuf_len != 1) | |
353 | dirbuf[dirbuf_len++] = '/'; | |
354 | dirbuf[dirbuf_len] = '\0'; | |
355 | if (sanitize_paths) | |
356 | dirbuf_depth = count_dir_elements(dirbuf + module_dirlen); | |
357 | } | |
358 | ||
359 | /* This routine takes a per-dir merge-file entry and finishes its setup. | |
360 | * If the name has a path portion then we check to see if it refers to a | |
361 | * parent directory of the first transfer dir. If it does, we scan all the | |
362 | * dirs from that point through the parent dir of the transfer dir looking | |
363 | * for the per-dir merge-file in each one. */ | |
7842418b | 364 | static BOOL setup_merge_file(struct filter_struct *ex, |
b6f06b8e | 365 | struct filter_list_struct *lp) |
6dfd07d0 WD |
366 | { |
367 | char buf[MAXPATHLEN]; | |
368 | char *x, *y, *pat = ex->pattern; | |
369 | unsigned int len; | |
370 | ||
371 | if (!(x = parse_merge_name(pat, NULL, 0)) || *x != '/') | |
372 | return 0; | |
373 | ||
374 | y = strrchr(x, '/'); | |
375 | *y = '\0'; | |
376 | ex->pattern = strdup(y+1); | |
377 | if (!*x) | |
378 | x = "/"; | |
379 | if (*x == '/') | |
380 | strlcpy(buf, x, MAXPATHLEN); | |
381 | else | |
382 | pathjoin(buf, MAXPATHLEN, dirbuf, x); | |
383 | ||
b58bfb2f | 384 | len = clean_fname(buf, CFN_COLLAPSE_DOT_DOT_DIRS); |
6dfd07d0 WD |
385 | if (len != 1 && len < MAXPATHLEN-1) { |
386 | buf[len++] = '/'; | |
387 | buf[len] = '\0'; | |
388 | } | |
389 | /* This ensures that the specified dir is a parent of the transfer. */ | |
390 | for (x = buf, y = dirbuf; *x && *x == *y; x++, y++) {} | |
391 | if (*x) | |
392 | y += strlen(y); /* nope -- skip the scan */ | |
393 | ||
394 | parent_dirscan = True; | |
395 | while (*y) { | |
396 | char save[MAXPATHLEN]; | |
397 | strlcpy(save, y, MAXPATHLEN); | |
398 | *y = '\0'; | |
399 | dirbuf_len = y - dirbuf; | |
400 | strlcpy(x, ex->pattern, MAXPATHLEN - (x - buf)); | |
fdc79501 | 401 | parse_filter_file(lp, buf, ex->match_flags, XFLG_ANCHORED2ABS); |
6dfd07d0 WD |
402 | if (ex->match_flags & MATCHFLG_NO_INHERIT) |
403 | lp->head = NULL; | |
404 | lp->tail = NULL; | |
405 | strlcpy(y, save, MAXPATHLEN); | |
406 | while ((*x++ = *y++) != '/') {} | |
407 | } | |
408 | parent_dirscan = False; | |
409 | free(pat); | |
410 | return 1; | |
411 | } | |
412 | ||
413 | /* Each time rsync changes to a new directory it call this function to | |
414 | * handle all the per-dir merge-files. The "dir" value is the current path | |
415 | * relative to curr_dir (which might not be null-terminated). We copy it | |
416 | * into dirbuf so that we can easily append a file name on the end. */ | |
7842418b | 417 | void *push_local_filters(const char *dir, unsigned int dirlen) |
6dfd07d0 | 418 | { |
7842418b | 419 | struct filter_list_struct *ap, *push; |
6dfd07d0 WD |
420 | int i; |
421 | ||
7842418b | 422 | set_filter_dir(dir, dirlen); |
6dfd07d0 | 423 | |
a2b371cd WD |
424 | if (!mergelist_cnt) |
425 | return NULL; | |
426 | ||
7842418b | 427 | push = new_array(struct filter_list_struct, mergelist_cnt); |
6dfd07d0 | 428 | if (!push) |
7842418b | 429 | out_of_memory("push_local_filters"); |
6dfd07d0 WD |
430 | |
431 | for (i = 0, ap = push; i < mergelist_cnt; i++) { | |
432 | memcpy(ap++, mergelist_parents[i]->u.mergelist, | |
7842418b | 433 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
434 | } |
435 | ||
fdc79501 | 436 | /* Note: parse_filter_file() might increase mergelist_cnt, so keep |
6dfd07d0 WD |
437 | * this loop separate from the above loop. */ |
438 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b WD |
439 | struct filter_struct *ex = mergelist_parents[i]; |
440 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
441 | |
442 | if (verbose > 2) { | |
7842418b | 443 | rprintf(FINFO, "[%s] pushing filter list%s\n", |
6dfd07d0 WD |
444 | who_am_i(), lp->debug_type); |
445 | } | |
446 | ||
447 | lp->tail = NULL; /* Switch any local rules to inherited. */ | |
448 | if (ex->match_flags & MATCHFLG_NO_INHERIT) | |
449 | lp->head = NULL; | |
6dfd07d0 WD |
450 | |
451 | if (ex->match_flags & MATCHFLG_FINISH_SETUP) { | |
452 | ex->match_flags &= ~MATCHFLG_FINISH_SETUP; | |
b6f06b8e | 453 | if (setup_merge_file(ex, lp)) |
7842418b | 454 | set_filter_dir(dir, dirlen); |
6dfd07d0 WD |
455 | } |
456 | ||
457 | if (strlcpy(dirbuf + dirbuf_len, ex->pattern, | |
b6f06b8e | 458 | MAXPATHLEN - dirbuf_len) < MAXPATHLEN - dirbuf_len) { |
fdc79501 WD |
459 | parse_filter_file(lp, dirbuf, ex->match_flags, |
460 | XFLG_ANCHORED2ABS); | |
b6f06b8e | 461 | } else { |
6dfd07d0 WD |
462 | io_error |= IOERR_GENERAL; |
463 | rprintf(FINFO, | |
7842418b | 464 | "cannot add local filter rules in long-named directory: %s\n", |
6dfd07d0 WD |
465 | full_fname(dirbuf)); |
466 | } | |
467 | dirbuf[dirbuf_len] = '\0'; | |
468 | } | |
469 | ||
470 | return (void*)push; | |
471 | } | |
472 | ||
7842418b | 473 | void pop_local_filters(void *mem) |
6dfd07d0 | 474 | { |
7842418b | 475 | struct filter_list_struct *ap, *pop = (struct filter_list_struct*)mem; |
6dfd07d0 WD |
476 | int i; |
477 | ||
478 | for (i = mergelist_cnt; i-- > 0; ) { | |
7842418b WD |
479 | struct filter_struct *ex = mergelist_parents[i]; |
480 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
481 | |
482 | if (verbose > 2) { | |
7842418b | 483 | rprintf(FINFO, "[%s] popping filter list%s\n", |
6dfd07d0 WD |
484 | who_am_i(), lp->debug_type); |
485 | } | |
486 | ||
7842418b | 487 | clear_filter_list(lp); |
6dfd07d0 WD |
488 | } |
489 | ||
a2b371cd WD |
490 | if (!pop) |
491 | return; | |
492 | ||
6dfd07d0 WD |
493 | for (i = 0, ap = pop; i < mergelist_cnt; i++) { |
494 | memcpy(mergelist_parents[i]->u.mergelist, ap++, | |
7842418b | 495 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
496 | } |
497 | ||
498 | free(pop); | |
5be7fa93 WD |
499 | } |
500 | ||
fe04532a WD |
501 | void change_local_filter_dir(const char *dname, int dlen, int dir_depth) |
502 | { | |
7fa60281 | 503 | static int cur_depth = -1; |
fe04532a WD |
504 | static void *filt_array[MAXPATHLEN/2+1]; |
505 | ||
506 | if (!dname) { | |
7fa60281 WD |
507 | for ( ; cur_depth >= 0; cur_depth--) { |
508 | if (filt_array[cur_depth]) { | |
509 | pop_local_filters(filt_array[cur_depth]); | |
510 | filt_array[cur_depth] = NULL; | |
511 | } | |
512 | } | |
fe04532a WD |
513 | return; |
514 | } | |
515 | ||
516 | assert(dir_depth < MAXPATHLEN/2+1); | |
517 | ||
7fa60281 WD |
518 | for ( ; cur_depth >= dir_depth; cur_depth--) { |
519 | if (filt_array[cur_depth]) { | |
520 | pop_local_filters(filt_array[cur_depth]); | |
521 | filt_array[cur_depth] = NULL; | |
522 | } | |
523 | } | |
fe04532a | 524 | |
7fa60281 | 525 | cur_depth = dir_depth; |
fe04532a WD |
526 | filt_array[cur_depth] = push_local_filters(dname, dlen); |
527 | } | |
528 | ||
ffe8feb2 | 529 | static int rule_matches(const char *fname, struct filter_struct *ex, int name_is_dir) |
2b6b4d53 | 530 | { |
e5daa273 | 531 | int slash_handling, str_cnt = 0, anchored_match = 0; |
f2ae9e85 | 532 | int ret_match = ex->match_flags & MATCHFLG_NEGATE ? 0 : 1; |
e5daa273 WD |
533 | char *p, *pattern = ex->pattern; |
534 | const char *strings[16]; /* more than enough */ | |
ffe8feb2 | 535 | const char *name = fname + (*fname == '/'); |
2b6b4d53 | 536 | |
9f186578 WD |
537 | if (!*name) |
538 | return 0; | |
539 | ||
6dfd07d0 | 540 | if (!ex->u.slash_cnt && !(ex->match_flags & MATCHFLG_WILD2)) { |
770de899 WD |
541 | /* If the pattern does not have any slashes AND it does |
542 | * not have a "**" (which could match a slash), then we | |
543 | * just match the name portion of the path. */ | |
5be7fa93 WD |
544 | if ((p = strrchr(name,'/')) != NULL) |
545 | name = p+1; | |
c291d057 | 546 | } else if (ex->match_flags & MATCHFLG_ABS_PATH && *fname != '/' |
6dfd07d0 | 547 | && curr_dir_len > module_dirlen + 1) { |
770de899 WD |
548 | /* If we're matching against an absolute-path pattern, |
549 | * we need to prepend our full path info. */ | |
e5daa273 WD |
550 | strings[str_cnt++] = curr_dir + module_dirlen + 1; |
551 | strings[str_cnt++] = "/"; | |
c291d057 | 552 | } else if (ex->match_flags & MATCHFLG_WILD2_PREFIX && *fname != '/') { |
e5daa273 WD |
553 | /* Allow "**"+"/" to match at the start of the string. */ |
554 | strings[str_cnt++] = "/"; | |
5be7fa93 | 555 | } |
e5daa273 WD |
556 | strings[str_cnt++] = name; |
557 | if (name_is_dir) { | |
558 | /* Allow a trailing "/"+"***" to match the directory. */ | |
559 | if (ex->match_flags & MATCHFLG_WILD3_SUFFIX) | |
560 | strings[str_cnt++] = "/"; | |
561 | } else if (ex->match_flags & MATCHFLG_DIRECTORY) | |
f2ae9e85 | 562 | return !ret_match; |
e5daa273 | 563 | strings[str_cnt] = NULL; |
2b6b4d53 | 564 | |
170381c0 | 565 | if (*pattern == '/') { |
770de899 | 566 | anchored_match = 1; |
2b6b4d53 AT |
567 | pattern++; |
568 | } | |
569 | ||
e5daa273 WD |
570 | if (!anchored_match && ex->u.slash_cnt |
571 | && !(ex->match_flags & MATCHFLG_WILD2)) { | |
170381c0 WD |
572 | /* A non-anchored match with an infix slash and no "**" |
573 | * needs to match the last slash_cnt+1 name elements. */ | |
e5daa273 WD |
574 | slash_handling = ex->u.slash_cnt + 1; |
575 | } else if (!anchored_match && !(ex->match_flags & MATCHFLG_WILD2_PREFIX) | |
576 | && ex->match_flags & MATCHFLG_WILD2) { | |
577 | /* A non-anchored match with an infix or trailing "**" (but not | |
578 | * a prefixed "**") needs to try matching after every slash. */ | |
579 | slash_handling = -1; | |
580 | } else { | |
581 | /* The pattern matches only at the start of the path or name. */ | |
582 | slash_handling = 0; | |
583 | } | |
584 | ||
585 | if (ex->match_flags & MATCHFLG_WILD) { | |
586 | if (wildmatch_array(pattern, strings, slash_handling)) | |
587 | return ret_match; | |
588 | } else if (str_cnt > 1) { | |
589 | if (litmatch_array(pattern, strings, slash_handling)) | |
f2ae9e85 | 590 | return ret_match; |
770de899 | 591 | } else if (anchored_match) { |
48ecccce | 592 | if (strcmp(name, pattern) == 0) |
f2ae9e85 | 593 | return ret_match; |
2b6b4d53 AT |
594 | } else { |
595 | int l1 = strlen(name); | |
ea2111d1 | 596 | int l2 = strlen(pattern); |
0f2ac855 | 597 | if (l2 <= l1 && |
ea2111d1 | 598 | strcmp(name+(l1-l2),pattern) == 0 && |
170381c0 | 599 | (l1==l2 || name[l1-(l2+1)] == '/')) { |
f2ae9e85 | 600 | return ret_match; |
c36cd317 | 601 | } |
2b6b4d53 AT |
602 | } |
603 | ||
f2ae9e85 | 604 | return !ret_match; |
c627d613 AT |
605 | } |
606 | ||
607 | ||
7842418b WD |
608 | static void report_filter_result(char const *name, |
609 | struct filter_struct const *ent, | |
610 | int name_is_dir, const char *type) | |
d567322f | 611 | { |
0f2ac855 | 612 | /* If a trailing slash is present to match only directories, |
fdc79501 | 613 | * then it is stripped out by add_rule(). So as a special |
0f2ac855 WD |
614 | * case we add it back in here. */ |
615 | ||
ea847c62 | 616 | if (verbose >= 2) { |
d5782b52 WD |
617 | static char *actions[2][2] |
618 | = { {"show", "hid"}, {"risk", "protect"} }; | |
619 | const char *w = who_am_i(); | |
620 | rprintf(FINFO, "[%s] %sing %s %s because of pattern %s%s%s\n", | |
621 | w, actions[*w!='s'][!(ent->match_flags&MATCHFLG_INCLUDE)], | |
622 | name_is_dir ? "directory" : "file", name, ent->pattern, | |
623 | ent->match_flags & MATCHFLG_DIRECTORY ? "/" : "", type); | |
ea847c62 | 624 | } |
d567322f MP |
625 | } |
626 | ||
627 | ||
628 | /* | |
a6536635 WD |
629 | * Return -1 if file "name" is defined to be excluded by the specified |
630 | * exclude list, 1 if it is included, and 0 if it was not matched. | |
d567322f | 631 | */ |
ffe8feb2 | 632 | int check_filter(struct filter_list_struct *listp, const char *name, int name_is_dir) |
c627d613 | 633 | { |
7842418b | 634 | struct filter_struct *ent; |
c627d613 | 635 | |
b2aa573b | 636 | for (ent = listp->head; ent; ent = ent->next) { |
ccdb23bb WD |
637 | if (ignore_perishable && ent->match_flags & MATCHFLG_PERISHABLE) |
638 | continue; | |
6dfd07d0 | 639 | if (ent->match_flags & MATCHFLG_PERDIR_MERGE) { |
7842418b WD |
640 | int rc = check_filter(ent->u.mergelist, name, |
641 | name_is_dir); | |
6dfd07d0 WD |
642 | if (rc) |
643 | return rc; | |
644 | continue; | |
645 | } | |
fdc79501 WD |
646 | if (ent->match_flags & MATCHFLG_CVS_IGNORE) { |
647 | int rc = check_filter(&cvs_filter_list, name, | |
648 | name_is_dir); | |
649 | if (rc) | |
650 | return rc; | |
651 | continue; | |
652 | } | |
7842418b WD |
653 | if (rule_matches(name, ent, name_is_dir)) { |
654 | report_filter_result(name, ent, name_is_dir, | |
67340e95 | 655 | listp->debug_type); |
5e972dcf | 656 | return ent->match_flags & MATCHFLG_INCLUDE ? 1 : -1; |
0f2ac855 | 657 | } |
2b6b4d53 | 658 | } |
c627d613 | 659 | |
2b6b4d53 | 660 | return 0; |
c627d613 AT |
661 | } |
662 | ||
345e0988 | 663 | #define RULE_STRCMP(s,r) rule_strcmp((s), (r), sizeof (r) - 1) |
a1ac8edd | 664 | |
4adbb5f2 | 665 | static const uchar *rule_strcmp(const uchar *str, const char *rule, int rule_len) |
a1ac8edd | 666 | { |
4adbb5f2 | 667 | if (strncmp((char*)str, rule, rule_len) != 0) |
a1ac8edd WD |
668 | return NULL; |
669 | if (isspace(str[rule_len]) || str[rule_len] == '_' || !str[rule_len]) | |
670 | return str + rule_len - 1; | |
671 | if (str[rule_len] == ',') | |
672 | return str + rule_len; | |
673 | return NULL; | |
674 | } | |
c627d613 | 675 | |
f8f72644 WD |
676 | /* Get the next include/exclude arg from the string. The token will not |
677 | * be '\0' terminated, so use the returned length to limit the string. | |
678 | * Also, be sure to add this length to the returned pointer before passing | |
e425fbe8 | 679 | * it back to ask for the next token. This routine parses the "!" (list- |
b6f06b8e WD |
680 | * clearing) token and (depending on the mflags) the various prefixes. |
681 | * The *mflags_ptr value will be set on exit to the new MATCHFLG_* bits | |
682 | * for the current token. */ | |
fdc79501 WD |
683 | static const char *parse_rule_tok(const char *p, uint32 mflags, int xflags, |
684 | unsigned int *len_ptr, uint32 *mflags_ptr) | |
f8f72644 | 685 | { |
fdc79501 WD |
686 | const uchar *s = (const uchar *)p; |
687 | uint32 new_mflags; | |
688 | unsigned int len; | |
f8f72644 | 689 | |
b6f06b8e | 690 | if (mflags & MATCHFLG_WORD_SPLIT) { |
96d3590a WD |
691 | /* Skip over any initial whitespace. */ |
692 | while (isspace(*s)) | |
f8f72644 | 693 | s++; |
6dfd07d0 | 694 | /* Update to point to real start of rule. */ |
abca4eba | 695 | p = (const char *)s; |
f8f72644 | 696 | } |
6dfd07d0 WD |
697 | if (!*s) |
698 | return NULL; | |
699 | ||
b6f06b8e WD |
700 | new_mflags = mflags & MATCHFLGS_FROM_CONTAINER; |
701 | ||
702 | /* Figure out what kind of a filter rule "s" is pointing at. Note | |
703 | * that if MATCHFLG_NO_PREFIXES is set, the rule is either an include | |
704 | * or an exclude based on the inheritance of the MATCHFLG_INCLUDE | |
705 | * flag (above). XFLG_OLD_PREFIXES indicates a compatibility mode | |
706 | * for old include/exclude patterns where just "+ " and "- " are | |
707 | * allowed as optional prefixes. */ | |
708 | if (mflags & MATCHFLG_NO_PREFIXES) { | |
a1ac8edd | 709 | if (*s == '!' && mflags & MATCHFLG_CVS_IGNORE) |
b6f06b8e WD |
710 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
711 | } else if (xflags & XFLG_OLD_PREFIXES) { | |
712 | if (*s == '-' && s[1] == ' ') { | |
713 | new_mflags &= ~MATCHFLG_INCLUDE; | |
714 | s += 2; | |
715 | } else if (*s == '+' && s[1] == ' ') { | |
716 | new_mflags |= MATCHFLG_INCLUDE; | |
717 | s += 2; | |
664cf327 | 718 | } else if (*s == '!') |
b6f06b8e WD |
719 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
720 | } else { | |
a1ac8edd | 721 | char ch = 0, *mods = ""; |
6dfd07d0 | 722 | switch (*s) { |
a1ac8edd | 723 | case 'c': |
345e0988 | 724 | if ((s = RULE_STRCMP(s, "clear")) != NULL) |
a1ac8edd WD |
725 | ch = '!'; |
726 | break; | |
727 | case 'd': | |
345e0988 | 728 | if ((s = RULE_STRCMP(s, "dir-merge")) != NULL) |
a1ac8edd WD |
729 | ch = ':'; |
730 | break; | |
731 | case 'e': | |
345e0988 | 732 | if ((s = RULE_STRCMP(s, "exclude")) != NULL) |
a1ac8edd WD |
733 | ch = '-'; |
734 | break; | |
ed243f8c WD |
735 | case 'h': |
736 | if ((s = RULE_STRCMP(s, "hide")) != NULL) | |
737 | ch = 'H'; | |
738 | break; | |
a1ac8edd | 739 | case 'i': |
345e0988 | 740 | if ((s = RULE_STRCMP(s, "include")) != NULL) |
a1ac8edd WD |
741 | ch = '+'; |
742 | break; | |
743 | case 'm': | |
345e0988 | 744 | if ((s = RULE_STRCMP(s, "merge")) != NULL) |
a1ac8edd WD |
745 | ch = '.'; |
746 | break; | |
ed243f8c WD |
747 | case 'p': |
748 | if ((s = RULE_STRCMP(s, "protect")) != NULL) | |
749 | ch = 'P'; | |
750 | break; | |
751 | case 'r': | |
752 | if ((s = RULE_STRCMP(s, "risk")) != NULL) | |
753 | ch = 'R'; | |
754 | break; | |
755 | case 's': | |
756 | if ((s = RULE_STRCMP(s, "show")) != NULL) | |
757 | ch = 'S'; | |
758 | break; | |
a1ac8edd WD |
759 | default: |
760 | ch = *s; | |
64b761c1 WD |
761 | if (s[1] == ',') |
762 | s++; | |
a1ac8edd WD |
763 | break; |
764 | } | |
765 | switch (ch) { | |
6dfd07d0 | 766 | case ':': |
b6f06b8e WD |
767 | new_mflags |= MATCHFLG_PERDIR_MERGE |
768 | | MATCHFLG_FINISH_SETUP; | |
6dfd07d0 WD |
769 | /* FALL THROUGH */ |
770 | case '.': | |
b6f06b8e WD |
771 | new_mflags |= MATCHFLG_MERGE_FILE; |
772 | mods = MODIFIERS_INCL_EXCL MODIFIERS_MERGE_FILE; | |
6dfd07d0 WD |
773 | break; |
774 | case '+': | |
b6f06b8e | 775 | new_mflags |= MATCHFLG_INCLUDE; |
bf39270e | 776 | /* FALL THROUGH */ |
6dfd07d0 | 777 | case '-': |
b6f06b8e | 778 | mods = MODIFIERS_INCL_EXCL; |
6dfd07d0 | 779 | break; |
ed243f8c WD |
780 | case 'S': |
781 | new_mflags |= MATCHFLG_INCLUDE; | |
782 | /* FALL THROUGH */ | |
783 | case 'H': | |
784 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
785 | mods = MODIFIERS_HIDE_PROTECT; | |
786 | break; | |
787 | case 'R': | |
788 | new_mflags |= MATCHFLG_INCLUDE; | |
789 | /* FALL THROUGH */ | |
790 | case 'P': | |
791 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
792 | mods = MODIFIERS_HIDE_PROTECT; | |
793 | break; | |
6dfd07d0 | 794 | case '!': |
b6f06b8e | 795 | new_mflags |= MATCHFLG_CLEAR_LIST; |
6dfd07d0 WD |
796 | mods = NULL; |
797 | break; | |
798 | default: | |
ac1cb938 | 799 | rprintf(FERROR, "Unknown filter rule: `%s'\n", p); |
6dfd07d0 WD |
800 | exit_cleanup(RERR_SYNTAX); |
801 | } | |
bf39270e | 802 | while (mods && *++s && *s != ' ' && *s != '_') { |
6dfd07d0 | 803 | if (strchr(mods, *s) == NULL) { |
b6f06b8e | 804 | if (mflags & MATCHFLG_WORD_SPLIT && isspace(*s)) { |
6dfd07d0 WD |
805 | s--; |
806 | break; | |
807 | } | |
b6f06b8e | 808 | invalid: |
6dfd07d0 | 809 | rprintf(FERROR, |
b6f06b8e | 810 | "invalid modifier sequence at '%c' in filter rule: %s\n", |
6dfd07d0 WD |
811 | *s, p); |
812 | exit_cleanup(RERR_SYNTAX); | |
813 | } | |
814 | switch (*s) { | |
815 | case '-': | |
b6f06b8e WD |
816 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
817 | goto invalid; | |
818 | new_mflags |= MATCHFLG_NO_PREFIXES; | |
6dfd07d0 WD |
819 | break; |
820 | case '+': | |
b6f06b8e WD |
821 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
822 | goto invalid; | |
823 | new_mflags |= MATCHFLG_NO_PREFIXES | |
824 | | MATCHFLG_INCLUDE; | |
6dfd07d0 | 825 | break; |
bf39270e | 826 | case '/': |
b6f06b8e | 827 | new_mflags |= MATCHFLG_ABS_PATH; |
bf39270e | 828 | break; |
f2ae9e85 | 829 | case '!': |
b6f06b8e | 830 | new_mflags |= MATCHFLG_NEGATE; |
f2ae9e85 | 831 | break; |
6dfd07d0 | 832 | case 'C': |
b6f06b8e WD |
833 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
834 | goto invalid; | |
b6f06b8e WD |
835 | new_mflags |= MATCHFLG_NO_PREFIXES |
836 | | MATCHFLG_WORD_SPLIT | |
fdc79501 WD |
837 | | MATCHFLG_NO_INHERIT |
838 | | MATCHFLG_CVS_IGNORE; | |
6dfd07d0 WD |
839 | break; |
840 | case 'e': | |
b6f06b8e | 841 | new_mflags |= MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
842 | break; |
843 | case 'n': | |
b6f06b8e | 844 | new_mflags |= MATCHFLG_NO_INHERIT; |
6dfd07d0 | 845 | break; |
ccdb23bb WD |
846 | case 'p': |
847 | new_mflags |= MATCHFLG_PERISHABLE; | |
848 | break; | |
ed243f8c WD |
849 | case 'r': |
850 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
851 | break; | |
852 | case 's': | |
853 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
854 | break; | |
0b2901b7 | 855 | case 'w': |
b6f06b8e | 856 | new_mflags |= MATCHFLG_WORD_SPLIT; |
6dfd07d0 WD |
857 | break; |
858 | } | |
859 | } | |
860 | if (*s) | |
861 | s++; | |
6dfd07d0 WD |
862 | } |
863 | ||
b6f06b8e | 864 | if (mflags & MATCHFLG_WORD_SPLIT) { |
fdc79501 | 865 | const uchar *cp = s; |
96d3590a WD |
866 | /* Token ends at whitespace or the end of the string. */ |
867 | while (!isspace(*cp) && *cp != '\0') | |
868 | cp++; | |
869 | len = cp - s; | |
870 | } else | |
0eeb1cf8 | 871 | len = strlen((char*)s); |
96d3590a | 872 | |
b6f06b8e | 873 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
35a388b1 WD |
874 | if (!(mflags & MATCHFLG_NO_PREFIXES) |
875 | && !(xflags & XFLG_OLD_PREFIXES) && len) { | |
6dfd07d0 WD |
876 | rprintf(FERROR, |
877 | "'!' rule has trailing characters: %s\n", p); | |
878 | exit_cleanup(RERR_SYNTAX); | |
879 | } | |
880 | if (len > 1) | |
b6f06b8e | 881 | new_mflags &= ~MATCHFLG_CLEAR_LIST; |
fdc79501 | 882 | } else if (!len && !(new_mflags & MATCHFLG_CVS_IGNORE)) { |
6dfd07d0 WD |
883 | rprintf(FERROR, "unexpected end of filter rule: %s\n", p); |
884 | exit_cleanup(RERR_SYNTAX); | |
885 | } | |
886 | ||
f1678790 | 887 | /* --delete-excluded turns an un-modified include/exclude into a |
48ecccce WD |
888 | * sender-side rule. We also affect per-dir merge files that take |
889 | * no prefixes as a simple optimization. */ | |
f1678790 WD |
890 | if (delete_excluded |
891 | && !(new_mflags & (MATCHFLG_RECEIVER_SIDE|MATCHFLG_SENDER_SIDE)) | |
48ecccce WD |
892 | && (!(new_mflags & MATCHFLG_PERDIR_MERGE) |
893 | || new_mflags & MATCHFLG_NO_PREFIXES)) | |
f1678790 WD |
894 | new_mflags |= MATCHFLG_SENDER_SIDE; |
895 | ||
96d3590a | 896 | *len_ptr = len; |
b6f06b8e | 897 | *mflags_ptr = new_mflags; |
96d3590a | 898 | return (const char *)s; |
f8f72644 WD |
899 | } |
900 | ||
901 | ||
0f78b815 | 902 | static char default_cvsignore[] = |
46db1850 WD |
903 | /* These default ignored items come from the CVS manual. */ |
904 | "RCS SCCS CVS CVS.adm RCSLOG cvslog.* tags TAGS" | |
905 | " .make.state .nse_depinfo *~ #* .#* ,* _$* *$" | |
906 | " *.old *.bak *.BAK *.orig *.rej .del-*" | |
907 | " *.a *.olb *.o *.obj *.so *.exe" | |
908 | " *.Z *.elc *.ln core" | |
909 | /* The rest we added to suit ourself. */ | |
0485b451 | 910 | " .svn/ .git/ .bzr/"; |
46db1850 WD |
911 | |
912 | static void get_cvs_excludes(uint32 mflags) | |
913 | { | |
46db1850 | 914 | static int initialized = 0; |
c2f0e4d9 | 915 | char *p, fname[MAXPATHLEN]; |
46db1850 WD |
916 | |
917 | if (initialized) | |
918 | return; | |
919 | initialized = 1; | |
920 | ||
c2f0e4d9 WD |
921 | parse_rule(&cvs_filter_list, default_cvsignore, |
922 | mflags | (protocol_version >= 30 ? MATCHFLG_PERISHABLE : 0), | |
923 | 0); | |
46db1850 WD |
924 | |
925 | p = module_id >= 0 && lp_use_chroot(module_id) ? "/" : getenv("HOME"); | |
926 | if (p && pathjoin(fname, MAXPATHLEN, p, ".cvsignore") < MAXPATHLEN) | |
927 | parse_filter_file(&cvs_filter_list, fname, mflags, 0); | |
928 | ||
929 | parse_rule(&cvs_filter_list, getenv("CVSIGNORE"), mflags, 0); | |
930 | } | |
931 | ||
932 | ||
fdc79501 WD |
933 | void parse_rule(struct filter_list_struct *listp, const char *pattern, |
934 | uint32 mflags, int xflags) | |
c627d613 | 935 | { |
fdc79501 WD |
936 | unsigned int pat_len; |
937 | uint32 new_mflags; | |
6dfd07d0 | 938 | const char *cp, *p; |
5be7fa93 | 939 | |
f8f72644 | 940 | if (!pattern) |
5e7dbaca | 941 | return; |
f8f72644 | 942 | |
b2aa573b | 943 | while (1) { |
6dfd07d0 | 944 | /* Remember that the returned string is NOT '\0' terminated! */ |
fdc79501 | 945 | cp = parse_rule_tok(pattern, mflags, xflags, |
b6f06b8e | 946 | &pat_len, &new_mflags); |
6dfd07d0 | 947 | if (!cp) |
b2aa573b | 948 | break; |
969f7ed5 WD |
949 | |
950 | pattern = cp + pat_len; | |
951 | ||
6dfd07d0 | 952 | if (pat_len >= MAXPATHLEN) { |
969f7ed5 | 953 | rprintf(FERROR, "discarding over-long filter: %.*s\n", |
e8b21fe4 | 954 | (int)pat_len, cp); |
6dfd07d0 WD |
955 | continue; |
956 | } | |
5e972dcf | 957 | |
b6f06b8e | 958 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
de91e757 WD |
959 | if (verbose > 2) { |
960 | rprintf(FINFO, | |
7842418b | 961 | "[%s] clearing filter list%s\n", |
de91e757 WD |
962 | who_am_i(), listp->debug_type); |
963 | } | |
7842418b | 964 | clear_filter_list(listp); |
5e972dcf WD |
965 | continue; |
966 | } | |
b2aa573b | 967 | |
b6f06b8e | 968 | if (new_mflags & MATCHFLG_MERGE_FILE) { |
fdc79501 WD |
969 | unsigned int len; |
970 | if (!pat_len) { | |
971 | cp = ".cvsignore"; | |
972 | pat_len = 10; | |
973 | } | |
974 | len = pat_len; | |
b6f06b8e | 975 | if (new_mflags & MATCHFLG_EXCLUDE_SELF) { |
969f7ed5 WD |
976 | const char *name = cp + len; |
977 | while (name > cp && name[-1] != '/') name--; | |
978 | len -= name - cp; | |
fdc79501 | 979 | add_rule(listp, name, len, 0, 0); |
b6f06b8e | 980 | new_mflags &= ~MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
981 | len = pat_len; |
982 | } | |
b6f06b8e | 983 | if (new_mflags & MATCHFLG_PERDIR_MERGE) { |
6dfd07d0 | 984 | if (parent_dirscan) { |
b6f06b8e WD |
985 | if (!(p = parse_merge_name(cp, &len, |
986 | module_dirlen))) | |
6dfd07d0 | 987 | continue; |
fdc79501 | 988 | add_rule(listp, p, len, new_mflags, 0); |
6dfd07d0 WD |
989 | continue; |
990 | } | |
991 | } else { | |
6dfd07d0 WD |
992 | if (!(p = parse_merge_name(cp, &len, 0))) |
993 | continue; | |
fdc79501 WD |
994 | parse_filter_file(listp, p, new_mflags, |
995 | XFLG_FATAL_ERRORS); | |
6dfd07d0 WD |
996 | continue; |
997 | } | |
f8f72644 | 998 | } |
6dfd07d0 | 999 | |
fdc79501 WD |
1000 | add_rule(listp, cp, pat_len, new_mflags, xflags); |
1001 | ||
1002 | if (new_mflags & MATCHFLG_CVS_IGNORE | |
1003 | && !(new_mflags & MATCHFLG_MERGE_FILE)) | |
46db1850 | 1004 | get_cvs_excludes(new_mflags); |
8c35542d | 1005 | } |
c627d613 AT |
1006 | } |
1007 | ||
c627d613 | 1008 | |
fdc79501 WD |
1009 | void parse_filter_file(struct filter_list_struct *listp, const char *fname, |
1010 | uint32 mflags, int xflags) | |
c627d613 | 1011 | { |
5e7dbaca | 1012 | FILE *fp; |
3fac51e2 | 1013 | char line[BIGPATHBUFLEN]; |
7cd72c79 | 1014 | char *eob = line + sizeof line - 1; |
b6f06b8e | 1015 | int word_split = mflags & MATCHFLG_WORD_SPLIT; |
ccdff3eb | 1016 | |
5be7fa93 WD |
1017 | if (!fname || !*fname) |
1018 | return; | |
1019 | ||
5a016db9 | 1020 | if (*fname != '-' || fname[1] || am_server) { |
819bfe45 | 1021 | if (daemon_filter_list.head) { |
5a016db9 | 1022 | strlcpy(line, fname, sizeof line); |
b58bfb2f | 1023 | clean_fname(line, CFN_COLLAPSE_DOT_DOT_DIRS); |
819bfe45 | 1024 | if (check_filter(&daemon_filter_list, line, 0) < 0) |
5a016db9 WD |
1025 | fp = NULL; |
1026 | else | |
1027 | fp = fopen(line, "rb"); | |
1028 | } else | |
1029 | fp = fopen(fname, "rb"); | |
1030 | } else | |
5e7dbaca | 1031 | fp = stdin; |
bf39270e WD |
1032 | |
1033 | if (verbose > 2) { | |
fdc79501 | 1034 | rprintf(FINFO, "[%s] parse_filter_file(%s,%x,%x)%s\n", |
45c49b52 | 1035 | who_am_i(), fname, mflags, xflags, |
bf39270e WD |
1036 | fp ? "" : " [not found]"); |
1037 | } | |
1038 | ||
5e7dbaca | 1039 | if (!fp) { |
f8f72644 | 1040 | if (xflags & XFLG_FATAL_ERRORS) { |
a039749b | 1041 | rsyserr(FERROR, errno, |
6dfd07d0 | 1042 | "failed to open %sclude file %s", |
b6f06b8e | 1043 | mflags & MATCHFLG_INCLUDE ? "in" : "ex", |
45c49b52 | 1044 | fname); |
65417579 | 1045 | exit_cleanup(RERR_FILEIO); |
2b6b4d53 | 1046 | } |
5be7fa93 | 1047 | return; |
2b6b4d53 | 1048 | } |
6dfd07d0 WD |
1049 | dirbuf[dirbuf_len] = '\0'; |
1050 | ||
ccdff3eb | 1051 | while (1) { |
5e7dbaca | 1052 | char *s = line; |
619d21ff | 1053 | int ch, overflow = 0; |
ccdff3eb | 1054 | while (1) { |
5e7dbaca | 1055 | if ((ch = getc(fp)) == EOF) { |
61e16468 WD |
1056 | if (ferror(fp) && errno == EINTR) { |
1057 | clearerr(fp); | |
ccdff3eb | 1058 | continue; |
61e16468 | 1059 | } |
ccdff3eb WD |
1060 | break; |
1061 | } | |
40d38dc0 WD |
1062 | if (word_split && isspace(ch)) |
1063 | break; | |
ccdff3eb WD |
1064 | if (eol_nulls? !ch : (ch == '\n' || ch == '\r')) |
1065 | break; | |
1066 | if (s < eob) | |
1067 | *s++ = ch; | |
619d21ff WD |
1068 | else |
1069 | overflow = 1; | |
1070 | } | |
1071 | if (overflow) { | |
7842418b | 1072 | rprintf(FERROR, "discarding over-long filter: %s...\n", line); |
619d21ff | 1073 | s = line; |
ccdff3eb WD |
1074 | } |
1075 | *s = '\0'; | |
7f0feb4d WD |
1076 | /* Skip an empty token and (when line parsing) comments. */ |
1077 | if (*line && (word_split || (*line != ';' && *line != '#'))) | |
fdc79501 | 1078 | parse_rule(listp, line, mflags, xflags); |
5e7dbaca | 1079 | if (ch == EOF) |
ccdff3eb | 1080 | break; |
2b6b4d53 | 1081 | } |
5e7dbaca | 1082 | fclose(fp); |
c627d613 AT |
1083 | } |
1084 | ||
a261103c | 1085 | /* If the "for_xfer" flag is set, the prefix is made compatible with the |
fdc79501 WD |
1086 | * current protocol_version (if possible) or a NULL is returned (if not |
1087 | * possible). */ | |
a261103c | 1088 | char *get_rule_prefix(int match_flags, const char *pat, int for_xfer, |
fdc79501 | 1089 | unsigned int *plen_ptr) |
417b5999 WD |
1090 | { |
1091 | static char buf[MAX_RULE_PREFIX+1]; | |
1092 | char *op = buf; | |
2217b30a | 1093 | int legal_len = for_xfer && protocol_version < 29 ? 1 : MAX_RULE_PREFIX-1; |
417b5999 WD |
1094 | |
1095 | if (match_flags & MATCHFLG_PERDIR_MERGE) { | |
fdc79501 WD |
1096 | if (legal_len == 1) |
1097 | return NULL; | |
417b5999 | 1098 | *op++ = ':'; |
fdc79501 WD |
1099 | } else if (match_flags & MATCHFLG_INCLUDE) |
1100 | *op++ = '+'; | |
1101 | else if (legal_len != 1 | |
1102 | || ((*pat == '-' || *pat == '+') && pat[1] == ' ')) | |
1103 | *op++ = '-'; | |
1104 | else | |
1105 | legal_len = 0; | |
1106 | ||
2a28dd32 WD |
1107 | if (match_flags & MATCHFLG_NEGATE) |
1108 | *op++ = '!'; | |
fdc79501 WD |
1109 | if (match_flags & MATCHFLG_CVS_IGNORE) |
1110 | *op++ = 'C'; | |
1111 | else { | |
417b5999 WD |
1112 | if (match_flags & MATCHFLG_NO_INHERIT) |
1113 | *op++ = 'n'; | |
d09e800a WD |
1114 | if (match_flags & MATCHFLG_WORD_SPLIT) |
1115 | *op++ = 'w'; | |
417b5999 WD |
1116 | if (match_flags & MATCHFLG_NO_PREFIXES) { |
1117 | if (match_flags & MATCHFLG_INCLUDE) | |
1118 | *op++ = '+'; | |
1119 | else | |
1120 | *op++ = '-'; | |
1121 | } | |
417b5999 | 1122 | } |
46db1850 WD |
1123 | if (match_flags & MATCHFLG_EXCLUDE_SELF) |
1124 | *op++ = 'e'; | |
ed243f8c WD |
1125 | if (match_flags & MATCHFLG_SENDER_SIDE |
1126 | && (!for_xfer || protocol_version >= 29)) | |
1127 | *op++ = 's'; | |
1128 | if (match_flags & MATCHFLG_RECEIVER_SIDE | |
1129 | && (!for_xfer || protocol_version >= 29 | |
1130 | || (delete_excluded && am_sender))) | |
1131 | *op++ = 'r'; | |
ccdb23bb WD |
1132 | if (match_flags & MATCHFLG_PERISHABLE) { |
1133 | if (!for_xfer || protocol_version >= 30) | |
1134 | *op++ = 'p'; | |
1135 | else if (am_sender) | |
1136 | return NULL; | |
1137 | } | |
448797a1 WD |
1138 | if (op - buf > legal_len) |
1139 | return NULL; | |
2217b30a WD |
1140 | if (legal_len) |
1141 | *op++ = ' '; | |
417b5999 WD |
1142 | *op = '\0'; |
1143 | if (plen_ptr) | |
1144 | *plen_ptr = op - buf; | |
417b5999 WD |
1145 | return buf; |
1146 | } | |
c627d613 | 1147 | |
fdc79501 | 1148 | static void send_rules(int f_out, struct filter_list_struct *flp) |
c627d613 | 1149 | { |
ed243f8c | 1150 | struct filter_struct *ent, *prev = NULL; |
25cf8893 | 1151 | |
fdc79501 | 1152 | for (ent = flp->head; ent; ent = ent->next) { |
417b5999 | 1153 | unsigned int len, plen, dlen; |
ed243f8c | 1154 | int elide = 0; |
417b5999 | 1155 | char *p; |
2fb139c1 | 1156 | |
f1678790 WD |
1157 | /* Note we need to check delete_excluded here in addition to |
1158 | * the code in parse_rule_tok() because some rules may have | |
48ecccce WD |
1159 | * been added before we found the --delete-excluded option. |
1160 | * We must also elide any CVS merge-file rules to avoid a | |
1161 | * backward compatibility problem, and we elide any no-prefix | |
1162 | * merge files as an optimization (since they can only have | |
1163 | * include/exclude rules). */ | |
ed243f8c WD |
1164 | if (ent->match_flags & MATCHFLG_SENDER_SIDE) |
1165 | elide = am_sender ? 1 : -1; | |
1166 | if (ent->match_flags & MATCHFLG_RECEIVER_SIDE) | |
1167 | elide = elide ? 0 : am_sender ? -1 : 1; | |
97bf86f8 | 1168 | else if (delete_excluded && !elide |
48ecccce WD |
1169 | && (!(ent->match_flags & MATCHFLG_PERDIR_MERGE) |
1170 | || ent->match_flags & MATCHFLG_NO_PREFIXES)) | |
ed243f8c WD |
1171 | elide = am_sender ? 1 : -1; |
1172 | if (elide < 0) { | |
1173 | if (prev) | |
1174 | prev->next = ent->next; | |
1175 | else | |
1176 | flp->head = ent->next; | |
1177 | } else | |
1178 | prev = ent; | |
1179 | if (elide > 0) | |
1180 | continue; | |
fdc79501 WD |
1181 | if (ent->match_flags & MATCHFLG_CVS_IGNORE |
1182 | && !(ent->match_flags & MATCHFLG_MERGE_FILE)) { | |
98e47414 | 1183 | int f = am_sender || protocol_version < 29 ? f_out : -2; |
ed243f8c | 1184 | send_rules(f, &cvs_filter_list); |
98e47414 | 1185 | if (f == f_out) |
417b5999 | 1186 | continue; |
fdc79501 WD |
1187 | } |
1188 | p = get_rule_prefix(ent->match_flags, ent->pattern, 1, &plen); | |
1189 | if (!p) { | |
417b5999 | 1190 | rprintf(FERROR, |
fdc79501 | 1191 | "filter rules are too modern for remote rsync.\n"); |
caf8299e | 1192 | exit_cleanup(RERR_PROTOCOL); |
5f5be796 | 1193 | } |
ed243f8c WD |
1194 | if (f_out < 0) |
1195 | continue; | |
fdc79501 | 1196 | len = strlen(ent->pattern); |
417b5999 | 1197 | dlen = ent->match_flags & MATCHFLG_DIRECTORY ? 1 : 0; |
fdc79501 WD |
1198 | if (!(plen + len + dlen)) |
1199 | continue; | |
1200 | write_int(f_out, plen + len + dlen); | |
417b5999 | 1201 | if (plen) |
fdc79501 WD |
1202 | write_buf(f_out, p, plen); |
1203 | write_buf(f_out, ent->pattern, len); | |
417b5999 | 1204 | if (dlen) |
fdc79501 | 1205 | write_byte(f_out, '/'); |
0f2ac855 | 1206 | } |
ed243f8c | 1207 | flp->tail = prev; |
c627d613 AT |
1208 | } |
1209 | ||
fdc79501 WD |
1210 | /* This is only called by the client. */ |
1211 | void send_filter_list(int f_out) | |
1212 | { | |
d5782b52 WD |
1213 | int receiver_wants_list = prune_empty_dirs |
1214 | || (delete_mode && (!delete_excluded || protocol_version >= 29)); | |
448797a1 WD |
1215 | |
1216 | if (local_server || (am_sender && !receiver_wants_list)) | |
fdc79501 WD |
1217 | f_out = -1; |
1218 | if (cvs_exclude && am_sender) { | |
1219 | if (protocol_version >= 29) | |
1220 | parse_rule(&filter_list, ":C", 0, 0); | |
1221 | parse_rule(&filter_list, "-C", 0, 0); | |
1222 | } | |
c627d613 | 1223 | |
ed243f8c WD |
1224 | send_rules(f_out, &filter_list); |
1225 | ||
1226 | if (f_out >= 0) | |
fdc79501 | 1227 | write_int(f_out, 0); |
fdc79501 WD |
1228 | |
1229 | if (cvs_exclude) { | |
1230 | if (!am_sender || protocol_version < 29) | |
1231 | parse_rule(&filter_list, ":C", 0, 0); | |
1232 | if (!am_sender) | |
1233 | parse_rule(&filter_list, "-C", 0, 0); | |
1234 | } | |
1235 | } | |
1236 | ||
1237 | /* This is only called by the server. */ | |
1238 | void recv_filter_list(int f_in) | |
c627d613 | 1239 | { |
3fac51e2 | 1240 | char line[BIGPATHBUFLEN]; |
fdc79501 | 1241 | int xflags = protocol_version >= 29 ? 0 : XFLG_OLD_PREFIXES; |
d5782b52 | 1242 | int receiver_wants_list = prune_empty_dirs |
e257c6c2 WD |
1243 | || (delete_mode |
1244 | && (!delete_excluded || protocol_version >= 29)); | |
fdc79501 WD |
1245 | unsigned int len; |
1246 | ||
448797a1 | 1247 | if (!local_server && (am_sender || receiver_wants_list)) { |
fdc79501 WD |
1248 | while ((len = read_int(f_in)) != 0) { |
1249 | if (len >= sizeof line) | |
a1f99493 | 1250 | overflow_exit("recv_rules"); |
fdc79501 WD |
1251 | read_sbuf(f_in, line, len); |
1252 | parse_rule(&filter_list, line, 0, xflags); | |
1253 | } | |
1254 | } | |
9dd891bb | 1255 | |
fdc79501 | 1256 | if (cvs_exclude) { |
1412da7c | 1257 | if (local_server || am_sender || protocol_version < 29) |
fdc79501 | 1258 | parse_rule(&filter_list, ":C", 0, 0); |
1412da7c | 1259 | if (local_server || am_sender) |
fdc79501 | 1260 | parse_rule(&filter_list, "-C", 0, 0); |
651443a7 | 1261 | } |
ed243f8c WD |
1262 | |
1263 | if (local_server) /* filter out any rules that aren't for us. */ | |
1264 | send_rules(-1, &filter_list); | |
651443a7 | 1265 | } |