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 | |
7 | * Copyright (C) 2003, 2004, 2005, 2006 Wayne Davison | |
0f2ac855 | 8 | * |
07a874fd MP |
9 | * This program is free software; you can redistribute it and/or modify |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 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 WD |
19 | * You should have received a copy of the GNU General Public License along |
20 | * with this program; if not, write to the Free Software Foundation, Inc., | |
21 | * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. | |
07a874fd | 22 | */ |
c627d613 | 23 | |
c627d613 AT |
24 | #include "rsync.h" |
25 | ||
26 | extern int verbose; | |
5a016db9 | 27 | extern int am_server; |
fdc79501 | 28 | extern int am_sender; |
40d38dc0 WD |
29 | extern int eol_nulls; |
30 | extern int list_only; | |
31 | extern int recurse; | |
6dfd07d0 | 32 | extern int io_error; |
1412da7c | 33 | extern int local_server; |
d5782b52 | 34 | extern int prune_empty_dirs; |
fdc79501 WD |
35 | extern int delete_mode; |
36 | extern int delete_excluded; | |
37 | extern int cvs_exclude; | |
6dfd07d0 WD |
38 | extern int sanitize_paths; |
39 | extern int protocol_version; | |
bf39270e | 40 | extern int module_id; |
40d38dc0 WD |
41 | |
42 | extern char curr_dir[]; | |
6dfd07d0 WD |
43 | extern unsigned int curr_dir_len; |
44 | extern unsigned int module_dirlen; | |
c627d613 | 45 | |
7842418b | 46 | struct filter_list_struct filter_list = { 0, 0, "" }; |
c81a20fb WD |
47 | struct filter_list_struct cvs_filter_list = { 0, 0, " [global CVS]" }; |
48 | struct filter_list_struct server_filter_list = { 0, 0, " [daemon]" }; | |
c627d613 | 49 | |
6dfd07d0 | 50 | /* Need room enough for ":MODS " prefix plus some room to grow. */ |
7842418b | 51 | #define MAX_RULE_PREFIX (16) |
6dfd07d0 | 52 | |
d727f0ff | 53 | #define MODIFIERS_MERGE_FILE "-+Cenw" |
ed243f8c WD |
54 | #define MODIFIERS_INCL_EXCL "/!Crs" |
55 | #define MODIFIERS_HIDE_PROTECT "/!" | |
b6f06b8e | 56 | |
7842418b | 57 | /* The dirbuf is set by push_local_filters() to the current subdirectory |
6dfd07d0 WD |
58 | * relative to curr_dir that is being processed. The path always has a |
59 | * trailing slash appended, and the variable dirbuf_len contains the length | |
60 | * of this path prefix. The path is always absolute. */ | |
61 | static char dirbuf[MAXPATHLEN+1]; | |
62 | static unsigned int dirbuf_len = 0; | |
63 | static int dirbuf_depth; | |
64 | ||
65 | /* This is True when we're scanning parent dirs for per-dir merge-files. */ | |
66 | static BOOL parent_dirscan = False; | |
67 | ||
68 | /* This array contains a list of all the currently active per-dir merge | |
69 | * files. This makes it easier to save the appropriate values when we | |
70 | * "push" down into each subdirectory. */ | |
7842418b | 71 | static struct filter_struct **mergelist_parents; |
6dfd07d0 WD |
72 | static int mergelist_cnt = 0; |
73 | static int mergelist_size = 0; | |
74 | ||
7842418b | 75 | /* Each filter_list_struct describes a singly-linked list by keeping track |
6dfd07d0 WD |
76 | * of both the head and tail pointers. The list is slightly unusual in that |
77 | * a parent-dir's content can be appended to the end of the local list in a | |
78 | * special way: the last item in the local list has its "next" pointer set | |
79 | * to point to the inherited list, but the local list's tail pointer points | |
80 | * at the end of the local list. Thus, if the local list is empty, the head | |
81 | * will be pointing at the inherited content but the tail will be NULL. To | |
82 | * help you visualize this, here are the possible list arrangements: | |
83 | * | |
84 | * Completely Empty Local Content Only | |
85 | * ================================== ==================================== | |
86 | * head -> NULL head -> Local1 -> Local2 -> NULL | |
87 | * tail -> NULL tail -------------^ | |
88 | * | |
89 | * Inherited Content Only Both Local and Inherited Content | |
90 | * ================================== ==================================== | |
91 | * head -> Parent1 -> Parent2 -> NULL head -> L1 -> L2 -> P1 -> P2 -> NULL | |
92 | * tail -> NULL tail ---------^ | |
93 | * | |
94 | * This means that anyone wanting to traverse the whole list to use it just | |
95 | * needs to start at the head and use the "next" pointers until it goes | |
96 | * NULL. To add new local content, we insert the item after the tail item | |
97 | * and update the tail (obviously, if "tail" was NULL, we insert it at the | |
98 | * head). To clear the local list, WE MUST NOT FREE THE INHERITED CONTENT | |
99 | * because it is shared between the current list and our parent list(s). | |
100 | * The easiest way to handle this is to simply truncate the list after the | |
101 | * tail item and then free the local list from the head. When inheriting | |
7842418b | 102 | * the list for a new local dir, we just save off the filter_list_struct |
6dfd07d0 WD |
103 | * values (so we can pop back to them later) and set the tail to NULL. |
104 | */ | |
105 | ||
7842418b | 106 | static void free_filter(struct filter_struct *ex) |
6dfd07d0 WD |
107 | { |
108 | if (ex->match_flags & MATCHFLG_PERDIR_MERGE) { | |
109 | free(ex->u.mergelist->debug_type); | |
110 | free(ex->u.mergelist); | |
111 | mergelist_cnt--; | |
112 | } | |
113 | free(ex->pattern); | |
114 | free(ex); | |
115 | } | |
116 | ||
7842418b | 117 | /* Build a filter structure given a filter pattern. The value in "pat" |
6dfd07d0 | 118 | * is not null-terminated. */ |
fdc79501 WD |
119 | static void add_rule(struct filter_list_struct *listp, const char *pat, |
120 | unsigned int pat_len, uint32 mflags, int xflags) | |
c627d613 | 121 | { |
7842418b | 122 | struct filter_struct *ret; |
f8f72644 | 123 | const char *cp; |
5e972dcf | 124 | unsigned int ex_len; |
c627d613 | 125 | |
6dfd07d0 | 126 | if (verbose > 2) { |
fdc79501 WD |
127 | rprintf(FINFO, "[%s] add_rule(%s%.*s%s)%s\n", |
128 | who_am_i(), get_rule_prefix(mflags, pat, 0, NULL), | |
129 | (int)pat_len, pat, | |
130 | (mflags & MATCHFLG_DIRECTORY) ? "/" : "", | |
6dfd07d0 WD |
131 | listp->debug_type); |
132 | } | |
133 | ||
4fc8140a | 134 | /* These flags also indicate that we're reading a list that |
6d7b3d52 | 135 | * needs to be filtered now, not post-filtered later. */ |
4fc8140a | 136 | if (xflags & (XFLG_ANCHORED2ABS|XFLG_ABS_IF_SLASH)) { |
6d7b3d52 WD |
137 | uint32 mf = mflags & (MATCHFLG_RECEIVER_SIDE|MATCHFLG_SENDER_SIDE); |
138 | if (am_sender) { | |
139 | if (mf == MATCHFLG_RECEIVER_SIDE) | |
140 | return; | |
141 | } else { | |
142 | if (mf == MATCHFLG_SENDER_SIDE) | |
143 | return; | |
144 | } | |
145 | } | |
146 | ||
fdc79501 WD |
147 | if (!(ret = new(struct filter_struct))) |
148 | out_of_memory("add_rule"); | |
5f5be796 | 149 | memset(ret, 0, sizeof ret[0]); |
2b6b4d53 | 150 | |
4fc8140a WD |
151 | if (!(mflags & (MATCHFLG_ABS_PATH | MATCHFLG_MERGE_FILE)) |
152 | && ((xflags & (XFLG_ANCHORED2ABS|XFLG_ABS_IF_SLASH) && *pat == '/') | |
153 | || (xflags & XFLG_ABS_IF_SLASH && strchr(pat, '/') != NULL))) { | |
bf39270e | 154 | mflags |= MATCHFLG_ABS_PATH; |
4fc8140a WD |
155 | if (*pat == '/') |
156 | ex_len = dirbuf_len - module_dirlen - 1; | |
157 | else | |
158 | ex_len = 0; | |
6dfd07d0 | 159 | } else |
f8f72644 | 160 | ex_len = 0; |
fdc79501 WD |
161 | if (!(ret->pattern = new_array(char, ex_len + pat_len + 1))) |
162 | out_of_memory("add_rule"); | |
f8f72644 | 163 | if (ex_len) |
6dfd07d0 | 164 | memcpy(ret->pattern, dirbuf + module_dirlen, ex_len); |
5e972dcf | 165 | strlcpy(ret->pattern + ex_len, pat, pat_len + 1); |
f8f72644 WD |
166 | pat_len += ex_len; |
167 | ||
168 | if (strpbrk(ret->pattern, "*[?")) { | |
5e972dcf | 169 | mflags |= MATCHFLG_WILD; |
96d3590a | 170 | if ((cp = strstr(ret->pattern, "**")) != NULL) { |
5e972dcf | 171 | mflags |= MATCHFLG_WILD2; |
170381c0 | 172 | /* If the pattern starts with **, note that. */ |
96d3590a | 173 | if (cp == ret->pattern) |
5e972dcf | 174 | mflags |= MATCHFLG_WILD2_PREFIX; |
e5daa273 WD |
175 | /* If the pattern ends with ***, note that. */ |
176 | if (pat_len >= 3 | |
177 | && ret->pattern[pat_len-3] == '*' | |
178 | && ret->pattern[pat_len-2] == '*' | |
179 | && ret->pattern[pat_len-1] == '*') | |
180 | mflags |= MATCHFLG_WILD3_SUFFIX; | |
0f2ac855 | 181 | } |
2bca43f6 | 182 | } |
c627d613 | 183 | |
5be7fa93 WD |
184 | if (pat_len > 1 && ret->pattern[pat_len-1] == '/') { |
185 | ret->pattern[pat_len-1] = 0; | |
5e972dcf | 186 | mflags |= MATCHFLG_DIRECTORY; |
2b6b4d53 | 187 | } |
c627d613 | 188 | |
6dfd07d0 | 189 | if (mflags & MATCHFLG_PERDIR_MERGE) { |
7842418b | 190 | struct filter_list_struct *lp; |
6dfd07d0 WD |
191 | unsigned int len; |
192 | int i; | |
193 | ||
194 | if ((cp = strrchr(ret->pattern, '/')) != NULL) | |
195 | cp++; | |
196 | else | |
197 | cp = ret->pattern; | |
198 | ||
199 | /* If the local merge file was already mentioned, don't | |
200 | * add it again. */ | |
201 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b | 202 | struct filter_struct *ex = mergelist_parents[i]; |
6dfd07d0 WD |
203 | const char *s = strrchr(ex->pattern, '/'); |
204 | if (s) | |
bf39270e | 205 | s++; |
6dfd07d0 | 206 | else |
bf39270e | 207 | s = ex->pattern; |
6dfd07d0 WD |
208 | len = strlen(s); |
209 | if (len == pat_len - (cp - ret->pattern) | |
210 | && memcmp(s, cp, len) == 0) { | |
7842418b | 211 | free_filter(ret); |
6dfd07d0 WD |
212 | return; |
213 | } | |
214 | } | |
215 | ||
7842418b | 216 | if (!(lp = new_array(struct filter_list_struct, 1))) |
fdc79501 | 217 | out_of_memory("add_rule"); |
6dfd07d0 | 218 | lp->head = lp->tail = NULL; |
fdc79501 WD |
219 | if (asprintf(&lp->debug_type, " [per-dir %s]", cp) < 0) |
220 | out_of_memory("add_rule"); | |
6dfd07d0 WD |
221 | ret->u.mergelist = lp; |
222 | ||
223 | if (mergelist_cnt == mergelist_size) { | |
224 | mergelist_size += 5; | |
225 | mergelist_parents = realloc_array(mergelist_parents, | |
7842418b | 226 | struct filter_struct *, |
6dfd07d0 WD |
227 | mergelist_size); |
228 | if (!mergelist_parents) | |
fdc79501 | 229 | out_of_memory("add_rule"); |
6dfd07d0 WD |
230 | } |
231 | mergelist_parents[mergelist_cnt++] = ret; | |
232 | } else { | |
233 | for (cp = ret->pattern; (cp = strchr(cp, '/')) != NULL; cp++) | |
234 | ret->u.slash_cnt++; | |
235 | } | |
0944563e | 236 | |
c1b29492 WD |
237 | ret->match_flags = mflags; |
238 | ||
6dfd07d0 WD |
239 | if (!listp->tail) { |
240 | ret->next = listp->head; | |
b2aa573b | 241 | listp->head = listp->tail = ret; |
6dfd07d0 WD |
242 | } else { |
243 | ret->next = listp->tail->next; | |
b2aa573b WD |
244 | listp->tail->next = ret; |
245 | listp->tail = ret; | |
246 | } | |
2b6b4d53 AT |
247 | } |
248 | ||
7842418b | 249 | static void clear_filter_list(struct filter_list_struct *listp) |
2b6b4d53 | 250 | { |
6dfd07d0 | 251 | if (listp->tail) { |
7842418b | 252 | struct filter_struct *ent, *next; |
6dfd07d0 WD |
253 | /* Truncate any inherited items from the local list. */ |
254 | listp->tail->next = NULL; | |
255 | /* Now free everything that is left. */ | |
256 | for (ent = listp->head; ent; ent = next) { | |
257 | next = ent->next; | |
7842418b | 258 | free_filter(ent); |
6dfd07d0 WD |
259 | } |
260 | } | |
261 | ||
262 | listp->head = listp->tail = NULL; | |
2b6b4d53 | 263 | } |
c627d613 | 264 | |
6dfd07d0 WD |
265 | /* This returns an expanded (absolute) filename for the merge-file name if |
266 | * the name has any slashes in it OR if the parent_dirscan var is True; | |
267 | * otherwise it returns the original merge_file name. If the len_ptr value | |
268 | * is non-NULL the merge_file name is limited by the referenced length | |
269 | * value and will be updated with the length of the resulting name. We | |
270 | * always return a name that is null terminated, even if the merge_file | |
271 | * name was not. */ | |
272 | static char *parse_merge_name(const char *merge_file, unsigned int *len_ptr, | |
273 | unsigned int prefix_skip) | |
5be7fa93 | 274 | { |
6dfd07d0 WD |
275 | static char buf[MAXPATHLEN]; |
276 | char *fn, tmpbuf[MAXPATHLEN]; | |
277 | unsigned int fn_len; | |
278 | ||
279 | if (!parent_dirscan && *merge_file != '/') { | |
280 | /* Return the name unchanged it doesn't have any slashes. */ | |
281 | if (len_ptr) { | |
282 | const char *p = merge_file + *len_ptr; | |
283 | while (--p > merge_file && *p != '/') {} | |
284 | if (p == merge_file) { | |
285 | strlcpy(buf, merge_file, *len_ptr + 1); | |
286 | return buf; | |
287 | } | |
288 | } else if (strchr(merge_file, '/') == NULL) | |
289 | return (char *)merge_file; | |
290 | } | |
5be7fa93 | 291 | |
6dfd07d0 WD |
292 | fn = *merge_file == '/' ? buf : tmpbuf; |
293 | if (sanitize_paths) { | |
294 | const char *r = prefix_skip ? "/" : NULL; | |
295 | /* null-terminate the name if it isn't already */ | |
296 | if (len_ptr && merge_file[*len_ptr]) { | |
297 | char *to = fn == buf ? tmpbuf : buf; | |
298 | strlcpy(to, merge_file, *len_ptr + 1); | |
299 | merge_file = to; | |
300 | } | |
91f4b31f | 301 | if (!sanitize_path(fn, merge_file, r, dirbuf_depth, NULL)) { |
6dfd07d0 | 302 | rprintf(FERROR, "merge-file name overflows: %s\n", |
45c49b52 | 303 | merge_file); |
6dfd07d0 WD |
304 | return NULL; |
305 | } | |
798cde47 | 306 | fn_len = strlen(fn); |
6dfd07d0 WD |
307 | } else { |
308 | strlcpy(fn, merge_file, len_ptr ? *len_ptr + 1 : MAXPATHLEN); | |
798cde47 | 309 | fn_len = clean_fname(fn, 1); |
b2aa573b | 310 | } |
0f78b815 | 311 | |
798cde47 WD |
312 | /* If the name isn't in buf yet, it's wasn't absolute. */ |
313 | if (fn != buf) { | |
314 | if (dirbuf_len + fn_len >= MAXPATHLEN) { | |
315 | rprintf(FERROR, "merge-file name overflows: %s\n", fn); | |
316 | return NULL; | |
317 | } | |
318 | memcpy(buf, dirbuf + prefix_skip, dirbuf_len - prefix_skip); | |
319 | memcpy(buf + dirbuf_len - prefix_skip, fn, fn_len + 1); | |
320 | fn_len = clean_fname(buf, 1); | |
6dfd07d0 | 321 | } |
6dfd07d0 | 322 | |
6dfd07d0 WD |
323 | if (len_ptr) |
324 | *len_ptr = fn_len; | |
325 | return buf; | |
326 | } | |
5be7fa93 | 327 | |
6dfd07d0 | 328 | /* Sets the dirbuf and dirbuf_len values. */ |
7842418b | 329 | void set_filter_dir(const char *dir, unsigned int dirlen) |
6dfd07d0 WD |
330 | { |
331 | unsigned int len; | |
332 | if (*dir != '/') { | |
333 | memcpy(dirbuf, curr_dir, curr_dir_len); | |
334 | dirbuf[curr_dir_len] = '/'; | |
335 | len = curr_dir_len + 1; | |
336 | if (len + dirlen >= MAXPATHLEN) | |
337 | dirlen = 0; | |
338 | } else | |
339 | len = 0; | |
340 | memcpy(dirbuf + len, dir, dirlen); | |
341 | dirbuf[dirlen + len] = '\0'; | |
342 | dirbuf_len = clean_fname(dirbuf, 1); | |
343 | if (dirbuf_len > 1 && dirbuf[dirbuf_len-1] == '.' | |
344 | && dirbuf[dirbuf_len-2] == '/') | |
345 | dirbuf_len -= 2; | |
346 | if (dirbuf_len != 1) | |
347 | dirbuf[dirbuf_len++] = '/'; | |
348 | dirbuf[dirbuf_len] = '\0'; | |
349 | if (sanitize_paths) | |
350 | dirbuf_depth = count_dir_elements(dirbuf + module_dirlen); | |
351 | } | |
352 | ||
353 | /* This routine takes a per-dir merge-file entry and finishes its setup. | |
354 | * If the name has a path portion then we check to see if it refers to a | |
355 | * parent directory of the first transfer dir. If it does, we scan all the | |
356 | * dirs from that point through the parent dir of the transfer dir looking | |
357 | * for the per-dir merge-file in each one. */ | |
7842418b | 358 | static BOOL setup_merge_file(struct filter_struct *ex, |
b6f06b8e | 359 | struct filter_list_struct *lp) |
6dfd07d0 WD |
360 | { |
361 | char buf[MAXPATHLEN]; | |
362 | char *x, *y, *pat = ex->pattern; | |
363 | unsigned int len; | |
364 | ||
365 | if (!(x = parse_merge_name(pat, NULL, 0)) || *x != '/') | |
366 | return 0; | |
367 | ||
368 | y = strrchr(x, '/'); | |
369 | *y = '\0'; | |
370 | ex->pattern = strdup(y+1); | |
371 | if (!*x) | |
372 | x = "/"; | |
373 | if (*x == '/') | |
374 | strlcpy(buf, x, MAXPATHLEN); | |
375 | else | |
376 | pathjoin(buf, MAXPATHLEN, dirbuf, x); | |
377 | ||
378 | len = clean_fname(buf, 1); | |
379 | if (len != 1 && len < MAXPATHLEN-1) { | |
380 | buf[len++] = '/'; | |
381 | buf[len] = '\0'; | |
382 | } | |
383 | /* This ensures that the specified dir is a parent of the transfer. */ | |
384 | for (x = buf, y = dirbuf; *x && *x == *y; x++, y++) {} | |
385 | if (*x) | |
386 | y += strlen(y); /* nope -- skip the scan */ | |
387 | ||
388 | parent_dirscan = True; | |
389 | while (*y) { | |
390 | char save[MAXPATHLEN]; | |
391 | strlcpy(save, y, MAXPATHLEN); | |
392 | *y = '\0'; | |
393 | dirbuf_len = y - dirbuf; | |
394 | strlcpy(x, ex->pattern, MAXPATHLEN - (x - buf)); | |
fdc79501 | 395 | parse_filter_file(lp, buf, ex->match_flags, XFLG_ANCHORED2ABS); |
6dfd07d0 WD |
396 | if (ex->match_flags & MATCHFLG_NO_INHERIT) |
397 | lp->head = NULL; | |
398 | lp->tail = NULL; | |
399 | strlcpy(y, save, MAXPATHLEN); | |
400 | while ((*x++ = *y++) != '/') {} | |
401 | } | |
402 | parent_dirscan = False; | |
403 | free(pat); | |
404 | return 1; | |
405 | } | |
406 | ||
407 | /* Each time rsync changes to a new directory it call this function to | |
408 | * handle all the per-dir merge-files. The "dir" value is the current path | |
409 | * relative to curr_dir (which might not be null-terminated). We copy it | |
410 | * into dirbuf so that we can easily append a file name on the end. */ | |
7842418b | 411 | void *push_local_filters(const char *dir, unsigned int dirlen) |
6dfd07d0 | 412 | { |
7842418b | 413 | struct filter_list_struct *ap, *push; |
6dfd07d0 WD |
414 | int i; |
415 | ||
7842418b | 416 | set_filter_dir(dir, dirlen); |
6dfd07d0 | 417 | |
a2b371cd WD |
418 | if (!mergelist_cnt) |
419 | return NULL; | |
420 | ||
7842418b | 421 | push = new_array(struct filter_list_struct, mergelist_cnt); |
6dfd07d0 | 422 | if (!push) |
7842418b | 423 | out_of_memory("push_local_filters"); |
6dfd07d0 WD |
424 | |
425 | for (i = 0, ap = push; i < mergelist_cnt; i++) { | |
426 | memcpy(ap++, mergelist_parents[i]->u.mergelist, | |
7842418b | 427 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
428 | } |
429 | ||
fdc79501 | 430 | /* Note: parse_filter_file() might increase mergelist_cnt, so keep |
6dfd07d0 WD |
431 | * this loop separate from the above loop. */ |
432 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b WD |
433 | struct filter_struct *ex = mergelist_parents[i]; |
434 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
435 | |
436 | if (verbose > 2) { | |
7842418b | 437 | rprintf(FINFO, "[%s] pushing filter list%s\n", |
6dfd07d0 WD |
438 | who_am_i(), lp->debug_type); |
439 | } | |
440 | ||
441 | lp->tail = NULL; /* Switch any local rules to inherited. */ | |
442 | if (ex->match_flags & MATCHFLG_NO_INHERIT) | |
443 | lp->head = NULL; | |
6dfd07d0 WD |
444 | |
445 | if (ex->match_flags & MATCHFLG_FINISH_SETUP) { | |
446 | ex->match_flags &= ~MATCHFLG_FINISH_SETUP; | |
b6f06b8e | 447 | if (setup_merge_file(ex, lp)) |
7842418b | 448 | set_filter_dir(dir, dirlen); |
6dfd07d0 WD |
449 | } |
450 | ||
451 | if (strlcpy(dirbuf + dirbuf_len, ex->pattern, | |
b6f06b8e | 452 | MAXPATHLEN - dirbuf_len) < MAXPATHLEN - dirbuf_len) { |
fdc79501 WD |
453 | parse_filter_file(lp, dirbuf, ex->match_flags, |
454 | XFLG_ANCHORED2ABS); | |
b6f06b8e | 455 | } else { |
6dfd07d0 WD |
456 | io_error |= IOERR_GENERAL; |
457 | rprintf(FINFO, | |
7842418b | 458 | "cannot add local filter rules in long-named directory: %s\n", |
6dfd07d0 WD |
459 | full_fname(dirbuf)); |
460 | } | |
461 | dirbuf[dirbuf_len] = '\0'; | |
462 | } | |
463 | ||
464 | return (void*)push; | |
465 | } | |
466 | ||
7842418b | 467 | void pop_local_filters(void *mem) |
6dfd07d0 | 468 | { |
7842418b | 469 | struct filter_list_struct *ap, *pop = (struct filter_list_struct*)mem; |
6dfd07d0 WD |
470 | int i; |
471 | ||
472 | for (i = mergelist_cnt; i-- > 0; ) { | |
7842418b WD |
473 | struct filter_struct *ex = mergelist_parents[i]; |
474 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
475 | |
476 | if (verbose > 2) { | |
7842418b | 477 | rprintf(FINFO, "[%s] popping filter list%s\n", |
6dfd07d0 WD |
478 | who_am_i(), lp->debug_type); |
479 | } | |
480 | ||
7842418b | 481 | clear_filter_list(lp); |
6dfd07d0 WD |
482 | } |
483 | ||
a2b371cd WD |
484 | if (!pop) |
485 | return; | |
486 | ||
6dfd07d0 WD |
487 | for (i = 0, ap = pop; i < mergelist_cnt; i++) { |
488 | memcpy(mergelist_parents[i]->u.mergelist, ap++, | |
7842418b | 489 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
490 | } |
491 | ||
492 | free(pop); | |
5be7fa93 WD |
493 | } |
494 | ||
7842418b | 495 | static int rule_matches(char *name, struct filter_struct *ex, int name_is_dir) |
2b6b4d53 | 496 | { |
e5daa273 | 497 | int slash_handling, str_cnt = 0, anchored_match = 0; |
f2ae9e85 | 498 | int ret_match = ex->match_flags & MATCHFLG_NEGATE ? 0 : 1; |
e5daa273 WD |
499 | char *p, *pattern = ex->pattern; |
500 | const char *strings[16]; /* more than enough */ | |
2b6b4d53 | 501 | |
29930a9f WD |
502 | if (*name == '/') |
503 | name++; | |
9f186578 WD |
504 | if (!*name) |
505 | return 0; | |
506 | ||
6dfd07d0 | 507 | if (!ex->u.slash_cnt && !(ex->match_flags & MATCHFLG_WILD2)) { |
770de899 WD |
508 | /* If the pattern does not have any slashes AND it does |
509 | * not have a "**" (which could match a slash), then we | |
510 | * just match the name portion of the path. */ | |
5be7fa93 WD |
511 | if ((p = strrchr(name,'/')) != NULL) |
512 | name = p+1; | |
770de899 | 513 | } else if (ex->match_flags & MATCHFLG_ABS_PATH && *name != '/' |
6dfd07d0 | 514 | && curr_dir_len > module_dirlen + 1) { |
770de899 WD |
515 | /* If we're matching against an absolute-path pattern, |
516 | * we need to prepend our full path info. */ | |
e5daa273 WD |
517 | strings[str_cnt++] = curr_dir + module_dirlen + 1; |
518 | strings[str_cnt++] = "/"; | |
519 | } else if (ex->match_flags & MATCHFLG_WILD2_PREFIX && *name != '/') { | |
520 | /* Allow "**"+"/" to match at the start of the string. */ | |
521 | strings[str_cnt++] = "/"; | |
5be7fa93 | 522 | } |
e5daa273 WD |
523 | strings[str_cnt++] = name; |
524 | if (name_is_dir) { | |
525 | /* Allow a trailing "/"+"***" to match the directory. */ | |
526 | if (ex->match_flags & MATCHFLG_WILD3_SUFFIX) | |
527 | strings[str_cnt++] = "/"; | |
528 | } else if (ex->match_flags & MATCHFLG_DIRECTORY) | |
f2ae9e85 | 529 | return !ret_match; |
e5daa273 | 530 | strings[str_cnt] = NULL; |
2b6b4d53 | 531 | |
170381c0 | 532 | if (*pattern == '/') { |
770de899 | 533 | anchored_match = 1; |
2b6b4d53 AT |
534 | pattern++; |
535 | } | |
536 | ||
e5daa273 WD |
537 | if (!anchored_match && ex->u.slash_cnt |
538 | && !(ex->match_flags & MATCHFLG_WILD2)) { | |
170381c0 WD |
539 | /* A non-anchored match with an infix slash and no "**" |
540 | * needs to match the last slash_cnt+1 name elements. */ | |
e5daa273 WD |
541 | slash_handling = ex->u.slash_cnt + 1; |
542 | } else if (!anchored_match && !(ex->match_flags & MATCHFLG_WILD2_PREFIX) | |
543 | && ex->match_flags & MATCHFLG_WILD2) { | |
544 | /* A non-anchored match with an infix or trailing "**" (but not | |
545 | * a prefixed "**") needs to try matching after every slash. */ | |
546 | slash_handling = -1; | |
547 | } else { | |
548 | /* The pattern matches only at the start of the path or name. */ | |
549 | slash_handling = 0; | |
550 | } | |
551 | ||
552 | if (ex->match_flags & MATCHFLG_WILD) { | |
553 | if (wildmatch_array(pattern, strings, slash_handling)) | |
554 | return ret_match; | |
555 | } else if (str_cnt > 1) { | |
556 | if (litmatch_array(pattern, strings, slash_handling)) | |
f2ae9e85 | 557 | return ret_match; |
770de899 | 558 | } else if (anchored_match) { |
48ecccce | 559 | if (strcmp(name, pattern) == 0) |
f2ae9e85 | 560 | return ret_match; |
2b6b4d53 AT |
561 | } else { |
562 | int l1 = strlen(name); | |
ea2111d1 | 563 | int l2 = strlen(pattern); |
0f2ac855 | 564 | if (l2 <= l1 && |
ea2111d1 | 565 | strcmp(name+(l1-l2),pattern) == 0 && |
170381c0 | 566 | (l1==l2 || name[l1-(l2+1)] == '/')) { |
f2ae9e85 | 567 | return ret_match; |
c36cd317 | 568 | } |
2b6b4d53 AT |
569 | } |
570 | ||
f2ae9e85 | 571 | return !ret_match; |
c627d613 AT |
572 | } |
573 | ||
574 | ||
7842418b WD |
575 | static void report_filter_result(char const *name, |
576 | struct filter_struct const *ent, | |
577 | int name_is_dir, const char *type) | |
d567322f | 578 | { |
0f2ac855 | 579 | /* If a trailing slash is present to match only directories, |
fdc79501 | 580 | * then it is stripped out by add_rule(). So as a special |
0f2ac855 WD |
581 | * case we add it back in here. */ |
582 | ||
ea847c62 | 583 | if (verbose >= 2) { |
d5782b52 WD |
584 | static char *actions[2][2] |
585 | = { {"show", "hid"}, {"risk", "protect"} }; | |
586 | const char *w = who_am_i(); | |
587 | rprintf(FINFO, "[%s] %sing %s %s because of pattern %s%s%s\n", | |
588 | w, actions[*w!='s'][!(ent->match_flags&MATCHFLG_INCLUDE)], | |
589 | name_is_dir ? "directory" : "file", name, ent->pattern, | |
590 | ent->match_flags & MATCHFLG_DIRECTORY ? "/" : "", type); | |
ea847c62 | 591 | } |
d567322f MP |
592 | } |
593 | ||
594 | ||
595 | /* | |
a6536635 WD |
596 | * Return -1 if file "name" is defined to be excluded by the specified |
597 | * exclude list, 1 if it is included, and 0 if it was not matched. | |
d567322f | 598 | */ |
7842418b | 599 | int check_filter(struct filter_list_struct *listp, char *name, int name_is_dir) |
c627d613 | 600 | { |
7842418b | 601 | struct filter_struct *ent; |
c627d613 | 602 | |
b2aa573b | 603 | for (ent = listp->head; ent; ent = ent->next) { |
6dfd07d0 | 604 | if (ent->match_flags & MATCHFLG_PERDIR_MERGE) { |
7842418b WD |
605 | int rc = check_filter(ent->u.mergelist, name, |
606 | name_is_dir); | |
6dfd07d0 WD |
607 | if (rc) |
608 | return rc; | |
609 | continue; | |
610 | } | |
fdc79501 WD |
611 | if (ent->match_flags & MATCHFLG_CVS_IGNORE) { |
612 | int rc = check_filter(&cvs_filter_list, name, | |
613 | name_is_dir); | |
614 | if (rc) | |
615 | return rc; | |
616 | continue; | |
617 | } | |
7842418b WD |
618 | if (rule_matches(name, ent, name_is_dir)) { |
619 | report_filter_result(name, ent, name_is_dir, | |
67340e95 | 620 | listp->debug_type); |
5e972dcf | 621 | return ent->match_flags & MATCHFLG_INCLUDE ? 1 : -1; |
0f2ac855 | 622 | } |
2b6b4d53 | 623 | } |
c627d613 | 624 | |
2b6b4d53 | 625 | return 0; |
c627d613 AT |
626 | } |
627 | ||
345e0988 | 628 | #define RULE_STRCMP(s,r) rule_strcmp((s), (r), sizeof (r) - 1) |
a1ac8edd | 629 | |
4adbb5f2 | 630 | static const uchar *rule_strcmp(const uchar *str, const char *rule, int rule_len) |
a1ac8edd | 631 | { |
4adbb5f2 | 632 | if (strncmp((char*)str, rule, rule_len) != 0) |
a1ac8edd WD |
633 | return NULL; |
634 | if (isspace(str[rule_len]) || str[rule_len] == '_' || !str[rule_len]) | |
635 | return str + rule_len - 1; | |
636 | if (str[rule_len] == ',') | |
637 | return str + rule_len; | |
638 | return NULL; | |
639 | } | |
c627d613 | 640 | |
f8f72644 WD |
641 | /* Get the next include/exclude arg from the string. The token will not |
642 | * be '\0' terminated, so use the returned length to limit the string. | |
643 | * Also, be sure to add this length to the returned pointer before passing | |
e425fbe8 | 644 | * it back to ask for the next token. This routine parses the "!" (list- |
b6f06b8e WD |
645 | * clearing) token and (depending on the mflags) the various prefixes. |
646 | * The *mflags_ptr value will be set on exit to the new MATCHFLG_* bits | |
647 | * for the current token. */ | |
fdc79501 WD |
648 | static const char *parse_rule_tok(const char *p, uint32 mflags, int xflags, |
649 | unsigned int *len_ptr, uint32 *mflags_ptr) | |
f8f72644 | 650 | { |
fdc79501 WD |
651 | const uchar *s = (const uchar *)p; |
652 | uint32 new_mflags; | |
653 | unsigned int len; | |
f8f72644 | 654 | |
b6f06b8e | 655 | if (mflags & MATCHFLG_WORD_SPLIT) { |
96d3590a WD |
656 | /* Skip over any initial whitespace. */ |
657 | while (isspace(*s)) | |
f8f72644 | 658 | s++; |
6dfd07d0 | 659 | /* Update to point to real start of rule. */ |
abca4eba | 660 | p = (const char *)s; |
f8f72644 | 661 | } |
6dfd07d0 WD |
662 | if (!*s) |
663 | return NULL; | |
664 | ||
b6f06b8e WD |
665 | new_mflags = mflags & MATCHFLGS_FROM_CONTAINER; |
666 | ||
667 | /* Figure out what kind of a filter rule "s" is pointing at. Note | |
668 | * that if MATCHFLG_NO_PREFIXES is set, the rule is either an include | |
669 | * or an exclude based on the inheritance of the MATCHFLG_INCLUDE | |
670 | * flag (above). XFLG_OLD_PREFIXES indicates a compatibility mode | |
671 | * for old include/exclude patterns where just "+ " and "- " are | |
672 | * allowed as optional prefixes. */ | |
673 | if (mflags & MATCHFLG_NO_PREFIXES) { | |
a1ac8edd | 674 | if (*s == '!' && mflags & MATCHFLG_CVS_IGNORE) |
b6f06b8e WD |
675 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
676 | } else if (xflags & XFLG_OLD_PREFIXES) { | |
677 | if (*s == '-' && s[1] == ' ') { | |
678 | new_mflags &= ~MATCHFLG_INCLUDE; | |
679 | s += 2; | |
680 | } else if (*s == '+' && s[1] == ' ') { | |
681 | new_mflags |= MATCHFLG_INCLUDE; | |
682 | s += 2; | |
664cf327 | 683 | } else if (*s == '!') |
b6f06b8e WD |
684 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
685 | } else { | |
a1ac8edd | 686 | char ch = 0, *mods = ""; |
6dfd07d0 | 687 | switch (*s) { |
a1ac8edd | 688 | case 'c': |
345e0988 | 689 | if ((s = RULE_STRCMP(s, "clear")) != NULL) |
a1ac8edd WD |
690 | ch = '!'; |
691 | break; | |
692 | case 'd': | |
345e0988 | 693 | if ((s = RULE_STRCMP(s, "dir-merge")) != NULL) |
a1ac8edd WD |
694 | ch = ':'; |
695 | break; | |
696 | case 'e': | |
345e0988 | 697 | if ((s = RULE_STRCMP(s, "exclude")) != NULL) |
a1ac8edd WD |
698 | ch = '-'; |
699 | break; | |
ed243f8c WD |
700 | case 'h': |
701 | if ((s = RULE_STRCMP(s, "hide")) != NULL) | |
702 | ch = 'H'; | |
703 | break; | |
a1ac8edd | 704 | case 'i': |
345e0988 | 705 | if ((s = RULE_STRCMP(s, "include")) != NULL) |
a1ac8edd WD |
706 | ch = '+'; |
707 | break; | |
708 | case 'm': | |
345e0988 | 709 | if ((s = RULE_STRCMP(s, "merge")) != NULL) |
a1ac8edd WD |
710 | ch = '.'; |
711 | break; | |
ed243f8c WD |
712 | case 'p': |
713 | if ((s = RULE_STRCMP(s, "protect")) != NULL) | |
714 | ch = 'P'; | |
715 | break; | |
716 | case 'r': | |
717 | if ((s = RULE_STRCMP(s, "risk")) != NULL) | |
718 | ch = 'R'; | |
719 | break; | |
720 | case 's': | |
721 | if ((s = RULE_STRCMP(s, "show")) != NULL) | |
722 | ch = 'S'; | |
723 | break; | |
a1ac8edd WD |
724 | default: |
725 | ch = *s; | |
64b761c1 WD |
726 | if (s[1] == ',') |
727 | s++; | |
a1ac8edd WD |
728 | break; |
729 | } | |
730 | switch (ch) { | |
6dfd07d0 | 731 | case ':': |
b6f06b8e WD |
732 | new_mflags |= MATCHFLG_PERDIR_MERGE |
733 | | MATCHFLG_FINISH_SETUP; | |
6dfd07d0 WD |
734 | /* FALL THROUGH */ |
735 | case '.': | |
b6f06b8e WD |
736 | new_mflags |= MATCHFLG_MERGE_FILE; |
737 | mods = MODIFIERS_INCL_EXCL MODIFIERS_MERGE_FILE; | |
6dfd07d0 WD |
738 | break; |
739 | case '+': | |
b6f06b8e | 740 | new_mflags |= MATCHFLG_INCLUDE; |
bf39270e | 741 | /* FALL THROUGH */ |
6dfd07d0 | 742 | case '-': |
b6f06b8e | 743 | mods = MODIFIERS_INCL_EXCL; |
6dfd07d0 | 744 | break; |
ed243f8c WD |
745 | case 'S': |
746 | new_mflags |= MATCHFLG_INCLUDE; | |
747 | /* FALL THROUGH */ | |
748 | case 'H': | |
749 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
750 | mods = MODIFIERS_HIDE_PROTECT; | |
751 | break; | |
752 | case 'R': | |
753 | new_mflags |= MATCHFLG_INCLUDE; | |
754 | /* FALL THROUGH */ | |
755 | case 'P': | |
756 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
757 | mods = MODIFIERS_HIDE_PROTECT; | |
758 | break; | |
6dfd07d0 | 759 | case '!': |
b6f06b8e | 760 | new_mflags |= MATCHFLG_CLEAR_LIST; |
6dfd07d0 WD |
761 | mods = NULL; |
762 | break; | |
763 | default: | |
ac1cb938 | 764 | rprintf(FERROR, "Unknown filter rule: `%s'\n", p); |
6dfd07d0 WD |
765 | exit_cleanup(RERR_SYNTAX); |
766 | } | |
bf39270e | 767 | while (mods && *++s && *s != ' ' && *s != '_') { |
6dfd07d0 | 768 | if (strchr(mods, *s) == NULL) { |
b6f06b8e | 769 | if (mflags & MATCHFLG_WORD_SPLIT && isspace(*s)) { |
6dfd07d0 WD |
770 | s--; |
771 | break; | |
772 | } | |
b6f06b8e | 773 | invalid: |
6dfd07d0 | 774 | rprintf(FERROR, |
b6f06b8e | 775 | "invalid modifier sequence at '%c' in filter rule: %s\n", |
6dfd07d0 WD |
776 | *s, p); |
777 | exit_cleanup(RERR_SYNTAX); | |
778 | } | |
779 | switch (*s) { | |
780 | case '-': | |
b6f06b8e WD |
781 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
782 | goto invalid; | |
783 | new_mflags |= MATCHFLG_NO_PREFIXES; | |
6dfd07d0 WD |
784 | break; |
785 | case '+': | |
b6f06b8e WD |
786 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
787 | goto invalid; | |
788 | new_mflags |= MATCHFLG_NO_PREFIXES | |
789 | | MATCHFLG_INCLUDE; | |
6dfd07d0 | 790 | break; |
bf39270e | 791 | case '/': |
b6f06b8e | 792 | new_mflags |= MATCHFLG_ABS_PATH; |
bf39270e | 793 | break; |
f2ae9e85 | 794 | case '!': |
b6f06b8e | 795 | new_mflags |= MATCHFLG_NEGATE; |
f2ae9e85 | 796 | break; |
6dfd07d0 | 797 | case 'C': |
b6f06b8e WD |
798 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
799 | goto invalid; | |
b6f06b8e WD |
800 | new_mflags |= MATCHFLG_NO_PREFIXES |
801 | | MATCHFLG_WORD_SPLIT | |
fdc79501 WD |
802 | | MATCHFLG_NO_INHERIT |
803 | | MATCHFLG_CVS_IGNORE; | |
6dfd07d0 WD |
804 | break; |
805 | case 'e': | |
b6f06b8e | 806 | new_mflags |= MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
807 | break; |
808 | case 'n': | |
b6f06b8e | 809 | new_mflags |= MATCHFLG_NO_INHERIT; |
6dfd07d0 | 810 | break; |
ed243f8c WD |
811 | case 'r': |
812 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
813 | break; | |
814 | case 's': | |
815 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
816 | break; | |
0b2901b7 | 817 | case 'w': |
b6f06b8e | 818 | new_mflags |= MATCHFLG_WORD_SPLIT; |
6dfd07d0 WD |
819 | break; |
820 | } | |
821 | } | |
822 | if (*s) | |
823 | s++; | |
6dfd07d0 WD |
824 | } |
825 | ||
b6f06b8e | 826 | if (mflags & MATCHFLG_WORD_SPLIT) { |
fdc79501 | 827 | const uchar *cp = s; |
96d3590a WD |
828 | /* Token ends at whitespace or the end of the string. */ |
829 | while (!isspace(*cp) && *cp != '\0') | |
830 | cp++; | |
831 | len = cp - s; | |
832 | } else | |
0eeb1cf8 | 833 | len = strlen((char*)s); |
96d3590a | 834 | |
b6f06b8e | 835 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
35a388b1 WD |
836 | if (!(mflags & MATCHFLG_NO_PREFIXES) |
837 | && !(xflags & XFLG_OLD_PREFIXES) && len) { | |
6dfd07d0 WD |
838 | rprintf(FERROR, |
839 | "'!' rule has trailing characters: %s\n", p); | |
840 | exit_cleanup(RERR_SYNTAX); | |
841 | } | |
842 | if (len > 1) | |
b6f06b8e | 843 | new_mflags &= ~MATCHFLG_CLEAR_LIST; |
fdc79501 | 844 | } else if (!len && !(new_mflags & MATCHFLG_CVS_IGNORE)) { |
6dfd07d0 WD |
845 | rprintf(FERROR, "unexpected end of filter rule: %s\n", p); |
846 | exit_cleanup(RERR_SYNTAX); | |
847 | } | |
848 | ||
f1678790 | 849 | /* --delete-excluded turns an un-modified include/exclude into a |
48ecccce WD |
850 | * sender-side rule. We also affect per-dir merge files that take |
851 | * no prefixes as a simple optimization. */ | |
f1678790 WD |
852 | if (delete_excluded |
853 | && !(new_mflags & (MATCHFLG_RECEIVER_SIDE|MATCHFLG_SENDER_SIDE)) | |
48ecccce WD |
854 | && (!(new_mflags & MATCHFLG_PERDIR_MERGE) |
855 | || new_mflags & MATCHFLG_NO_PREFIXES)) | |
f1678790 WD |
856 | new_mflags |= MATCHFLG_SENDER_SIDE; |
857 | ||
96d3590a | 858 | *len_ptr = len; |
b6f06b8e | 859 | *mflags_ptr = new_mflags; |
96d3590a | 860 | return (const char *)s; |
f8f72644 WD |
861 | } |
862 | ||
863 | ||
0f78b815 | 864 | static char default_cvsignore[] = |
46db1850 WD |
865 | /* These default ignored items come from the CVS manual. */ |
866 | "RCS SCCS CVS CVS.adm RCSLOG cvslog.* tags TAGS" | |
867 | " .make.state .nse_depinfo *~ #* .#* ,* _$* *$" | |
868 | " *.old *.bak *.BAK *.orig *.rej .del-*" | |
869 | " *.a *.olb *.o *.obj *.so *.exe" | |
870 | " *.Z *.elc *.ln core" | |
871 | /* The rest we added to suit ourself. */ | |
55c41263 | 872 | " .svn/ .bzr/"; |
46db1850 WD |
873 | |
874 | static void get_cvs_excludes(uint32 mflags) | |
875 | { | |
876 | char *p, fname[MAXPATHLEN]; | |
877 | static int initialized = 0; | |
878 | ||
879 | if (initialized) | |
880 | return; | |
881 | initialized = 1; | |
882 | ||
883 | parse_rule(&cvs_filter_list, default_cvsignore, mflags, 0); | |
884 | ||
885 | p = module_id >= 0 && lp_use_chroot(module_id) ? "/" : getenv("HOME"); | |
886 | if (p && pathjoin(fname, MAXPATHLEN, p, ".cvsignore") < MAXPATHLEN) | |
887 | parse_filter_file(&cvs_filter_list, fname, mflags, 0); | |
888 | ||
889 | parse_rule(&cvs_filter_list, getenv("CVSIGNORE"), mflags, 0); | |
890 | } | |
891 | ||
892 | ||
fdc79501 WD |
893 | void parse_rule(struct filter_list_struct *listp, const char *pattern, |
894 | uint32 mflags, int xflags) | |
c627d613 | 895 | { |
fdc79501 WD |
896 | unsigned int pat_len; |
897 | uint32 new_mflags; | |
6dfd07d0 | 898 | const char *cp, *p; |
5be7fa93 | 899 | |
f8f72644 | 900 | if (!pattern) |
5e7dbaca | 901 | return; |
f8f72644 | 902 | |
b2aa573b | 903 | while (1) { |
6dfd07d0 | 904 | /* Remember that the returned string is NOT '\0' terminated! */ |
fdc79501 | 905 | cp = parse_rule_tok(pattern, mflags, xflags, |
b6f06b8e | 906 | &pat_len, &new_mflags); |
6dfd07d0 | 907 | if (!cp) |
b2aa573b | 908 | break; |
969f7ed5 WD |
909 | |
910 | pattern = cp + pat_len; | |
911 | ||
6dfd07d0 | 912 | if (pat_len >= MAXPATHLEN) { |
969f7ed5 | 913 | rprintf(FERROR, "discarding over-long filter: %.*s\n", |
e8b21fe4 | 914 | (int)pat_len, cp); |
6dfd07d0 WD |
915 | continue; |
916 | } | |
5e972dcf | 917 | |
b6f06b8e | 918 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
de91e757 WD |
919 | if (verbose > 2) { |
920 | rprintf(FINFO, | |
7842418b | 921 | "[%s] clearing filter list%s\n", |
de91e757 WD |
922 | who_am_i(), listp->debug_type); |
923 | } | |
7842418b | 924 | clear_filter_list(listp); |
5e972dcf WD |
925 | continue; |
926 | } | |
b2aa573b | 927 | |
b6f06b8e | 928 | if (new_mflags & MATCHFLG_MERGE_FILE) { |
fdc79501 WD |
929 | unsigned int len; |
930 | if (!pat_len) { | |
931 | cp = ".cvsignore"; | |
932 | pat_len = 10; | |
933 | } | |
934 | len = pat_len; | |
b6f06b8e | 935 | if (new_mflags & MATCHFLG_EXCLUDE_SELF) { |
969f7ed5 WD |
936 | const char *name = cp + len; |
937 | while (name > cp && name[-1] != '/') name--; | |
938 | len -= name - cp; | |
fdc79501 | 939 | add_rule(listp, name, len, 0, 0); |
b6f06b8e | 940 | new_mflags &= ~MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
941 | len = pat_len; |
942 | } | |
b6f06b8e | 943 | if (new_mflags & MATCHFLG_PERDIR_MERGE) { |
6dfd07d0 | 944 | if (parent_dirscan) { |
b6f06b8e WD |
945 | if (!(p = parse_merge_name(cp, &len, |
946 | module_dirlen))) | |
6dfd07d0 | 947 | continue; |
fdc79501 | 948 | add_rule(listp, p, len, new_mflags, 0); |
6dfd07d0 WD |
949 | continue; |
950 | } | |
951 | } else { | |
6dfd07d0 WD |
952 | if (!(p = parse_merge_name(cp, &len, 0))) |
953 | continue; | |
fdc79501 WD |
954 | parse_filter_file(listp, p, new_mflags, |
955 | XFLG_FATAL_ERRORS); | |
6dfd07d0 WD |
956 | continue; |
957 | } | |
f8f72644 | 958 | } |
6dfd07d0 | 959 | |
fdc79501 WD |
960 | add_rule(listp, cp, pat_len, new_mflags, xflags); |
961 | ||
962 | if (new_mflags & MATCHFLG_CVS_IGNORE | |
963 | && !(new_mflags & MATCHFLG_MERGE_FILE)) | |
46db1850 | 964 | get_cvs_excludes(new_mflags); |
8c35542d | 965 | } |
c627d613 AT |
966 | } |
967 | ||
c627d613 | 968 | |
fdc79501 WD |
969 | void parse_filter_file(struct filter_list_struct *listp, const char *fname, |
970 | uint32 mflags, int xflags) | |
c627d613 | 971 | { |
5e7dbaca | 972 | FILE *fp; |
3fac51e2 | 973 | char line[BIGPATHBUFLEN]; |
7cd72c79 | 974 | char *eob = line + sizeof line - 1; |
b6f06b8e | 975 | int word_split = mflags & MATCHFLG_WORD_SPLIT; |
ccdff3eb | 976 | |
5be7fa93 WD |
977 | if (!fname || !*fname) |
978 | return; | |
979 | ||
5a016db9 WD |
980 | if (*fname != '-' || fname[1] || am_server) { |
981 | if (server_filter_list.head) { | |
982 | strlcpy(line, fname, sizeof line); | |
983 | clean_fname(line, 1); | |
984 | if (check_filter(&server_filter_list, line, 0) < 0) | |
985 | fp = NULL; | |
986 | else | |
987 | fp = fopen(line, "rb"); | |
988 | } else | |
989 | fp = fopen(fname, "rb"); | |
990 | } else | |
5e7dbaca | 991 | fp = stdin; |
bf39270e WD |
992 | |
993 | if (verbose > 2) { | |
fdc79501 | 994 | rprintf(FINFO, "[%s] parse_filter_file(%s,%x,%x)%s\n", |
45c49b52 | 995 | who_am_i(), fname, mflags, xflags, |
bf39270e WD |
996 | fp ? "" : " [not found]"); |
997 | } | |
998 | ||
5e7dbaca | 999 | if (!fp) { |
f8f72644 | 1000 | if (xflags & XFLG_FATAL_ERRORS) { |
a039749b | 1001 | rsyserr(FERROR, errno, |
6dfd07d0 | 1002 | "failed to open %sclude file %s", |
b6f06b8e | 1003 | mflags & MATCHFLG_INCLUDE ? "in" : "ex", |
45c49b52 | 1004 | fname); |
65417579 | 1005 | exit_cleanup(RERR_FILEIO); |
2b6b4d53 | 1006 | } |
5be7fa93 | 1007 | return; |
2b6b4d53 | 1008 | } |
6dfd07d0 WD |
1009 | dirbuf[dirbuf_len] = '\0'; |
1010 | ||
ccdff3eb | 1011 | while (1) { |
5e7dbaca | 1012 | char *s = line; |
619d21ff | 1013 | int ch, overflow = 0; |
ccdff3eb | 1014 | while (1) { |
5e7dbaca | 1015 | if ((ch = getc(fp)) == EOF) { |
61e16468 WD |
1016 | if (ferror(fp) && errno == EINTR) { |
1017 | clearerr(fp); | |
ccdff3eb | 1018 | continue; |
61e16468 | 1019 | } |
ccdff3eb WD |
1020 | break; |
1021 | } | |
40d38dc0 WD |
1022 | if (word_split && isspace(ch)) |
1023 | break; | |
ccdff3eb WD |
1024 | if (eol_nulls? !ch : (ch == '\n' || ch == '\r')) |
1025 | break; | |
1026 | if (s < eob) | |
1027 | *s++ = ch; | |
619d21ff WD |
1028 | else |
1029 | overflow = 1; | |
1030 | } | |
1031 | if (overflow) { | |
7842418b | 1032 | rprintf(FERROR, "discarding over-long filter: %s...\n", line); |
619d21ff | 1033 | s = line; |
ccdff3eb WD |
1034 | } |
1035 | *s = '\0'; | |
7f0feb4d WD |
1036 | /* Skip an empty token and (when line parsing) comments. */ |
1037 | if (*line && (word_split || (*line != ';' && *line != '#'))) | |
fdc79501 | 1038 | parse_rule(listp, line, mflags, xflags); |
5e7dbaca | 1039 | if (ch == EOF) |
ccdff3eb | 1040 | break; |
2b6b4d53 | 1041 | } |
5e7dbaca | 1042 | fclose(fp); |
c627d613 AT |
1043 | } |
1044 | ||
a261103c | 1045 | /* If the "for_xfer" flag is set, the prefix is made compatible with the |
fdc79501 WD |
1046 | * current protocol_version (if possible) or a NULL is returned (if not |
1047 | * possible). */ | |
a261103c | 1048 | char *get_rule_prefix(int match_flags, const char *pat, int for_xfer, |
fdc79501 | 1049 | unsigned int *plen_ptr) |
417b5999 WD |
1050 | { |
1051 | static char buf[MAX_RULE_PREFIX+1]; | |
1052 | char *op = buf; | |
2217b30a | 1053 | int legal_len = for_xfer && protocol_version < 29 ? 1 : MAX_RULE_PREFIX-1; |
417b5999 WD |
1054 | |
1055 | if (match_flags & MATCHFLG_PERDIR_MERGE) { | |
fdc79501 WD |
1056 | if (legal_len == 1) |
1057 | return NULL; | |
417b5999 | 1058 | *op++ = ':'; |
fdc79501 WD |
1059 | } else if (match_flags & MATCHFLG_INCLUDE) |
1060 | *op++ = '+'; | |
1061 | else if (legal_len != 1 | |
1062 | || ((*pat == '-' || *pat == '+') && pat[1] == ' ')) | |
1063 | *op++ = '-'; | |
1064 | else | |
1065 | legal_len = 0; | |
1066 | ||
fdc79501 WD |
1067 | if (match_flags & MATCHFLG_CVS_IGNORE) |
1068 | *op++ = 'C'; | |
1069 | else { | |
417b5999 WD |
1070 | if (match_flags & MATCHFLG_NO_INHERIT) |
1071 | *op++ = 'n'; | |
d09e800a WD |
1072 | if (match_flags & MATCHFLG_WORD_SPLIT) |
1073 | *op++ = 'w'; | |
417b5999 WD |
1074 | if (match_flags & MATCHFLG_NO_PREFIXES) { |
1075 | if (match_flags & MATCHFLG_INCLUDE) | |
1076 | *op++ = '+'; | |
1077 | else | |
1078 | *op++ = '-'; | |
1079 | } | |
417b5999 | 1080 | } |
46db1850 WD |
1081 | if (match_flags & MATCHFLG_EXCLUDE_SELF) |
1082 | *op++ = 'e'; | |
ed243f8c WD |
1083 | if (match_flags & MATCHFLG_SENDER_SIDE |
1084 | && (!for_xfer || protocol_version >= 29)) | |
1085 | *op++ = 's'; | |
1086 | if (match_flags & MATCHFLG_RECEIVER_SIDE | |
1087 | && (!for_xfer || protocol_version >= 29 | |
1088 | || (delete_excluded && am_sender))) | |
1089 | *op++ = 'r'; | |
448797a1 WD |
1090 | if (op - buf > legal_len) |
1091 | return NULL; | |
2217b30a WD |
1092 | if (legal_len) |
1093 | *op++ = ' '; | |
417b5999 WD |
1094 | *op = '\0'; |
1095 | if (plen_ptr) | |
1096 | *plen_ptr = op - buf; | |
417b5999 WD |
1097 | return buf; |
1098 | } | |
c627d613 | 1099 | |
fdc79501 | 1100 | static void send_rules(int f_out, struct filter_list_struct *flp) |
c627d613 | 1101 | { |
ed243f8c | 1102 | struct filter_struct *ent, *prev = NULL; |
25cf8893 | 1103 | |
fdc79501 | 1104 | for (ent = flp->head; ent; ent = ent->next) { |
417b5999 | 1105 | unsigned int len, plen, dlen; |
ed243f8c | 1106 | int elide = 0; |
417b5999 | 1107 | char *p; |
2fb139c1 | 1108 | |
f1678790 WD |
1109 | /* Note we need to check delete_excluded here in addition to |
1110 | * the code in parse_rule_tok() because some rules may have | |
48ecccce WD |
1111 | * been added before we found the --delete-excluded option. |
1112 | * We must also elide any CVS merge-file rules to avoid a | |
1113 | * backward compatibility problem, and we elide any no-prefix | |
1114 | * merge files as an optimization (since they can only have | |
1115 | * include/exclude rules). */ | |
ed243f8c WD |
1116 | if (ent->match_flags & MATCHFLG_SENDER_SIDE) |
1117 | elide = am_sender ? 1 : -1; | |
1118 | if (ent->match_flags & MATCHFLG_RECEIVER_SIDE) | |
1119 | elide = elide ? 0 : am_sender ? -1 : 1; | |
97bf86f8 | 1120 | else if (delete_excluded && !elide |
48ecccce WD |
1121 | && (!(ent->match_flags & MATCHFLG_PERDIR_MERGE) |
1122 | || ent->match_flags & MATCHFLG_NO_PREFIXES)) | |
ed243f8c WD |
1123 | elide = am_sender ? 1 : -1; |
1124 | if (elide < 0) { | |
1125 | if (prev) | |
1126 | prev->next = ent->next; | |
1127 | else | |
1128 | flp->head = ent->next; | |
1129 | } else | |
1130 | prev = ent; | |
1131 | if (elide > 0) | |
1132 | continue; | |
fdc79501 WD |
1133 | if (ent->match_flags & MATCHFLG_CVS_IGNORE |
1134 | && !(ent->match_flags & MATCHFLG_MERGE_FILE)) { | |
98e47414 | 1135 | int f = am_sender || protocol_version < 29 ? f_out : -2; |
ed243f8c | 1136 | send_rules(f, &cvs_filter_list); |
98e47414 | 1137 | if (f == f_out) |
417b5999 | 1138 | continue; |
fdc79501 WD |
1139 | } |
1140 | p = get_rule_prefix(ent->match_flags, ent->pattern, 1, &plen); | |
1141 | if (!p) { | |
417b5999 | 1142 | rprintf(FERROR, |
fdc79501 | 1143 | "filter rules are too modern for remote rsync.\n"); |
417b5999 | 1144 | exit_cleanup(RERR_SYNTAX); |
5f5be796 | 1145 | } |
ed243f8c WD |
1146 | if (f_out < 0) |
1147 | continue; | |
fdc79501 | 1148 | len = strlen(ent->pattern); |
417b5999 | 1149 | dlen = ent->match_flags & MATCHFLG_DIRECTORY ? 1 : 0; |
fdc79501 WD |
1150 | if (!(plen + len + dlen)) |
1151 | continue; | |
1152 | write_int(f_out, plen + len + dlen); | |
417b5999 | 1153 | if (plen) |
fdc79501 WD |
1154 | write_buf(f_out, p, plen); |
1155 | write_buf(f_out, ent->pattern, len); | |
417b5999 | 1156 | if (dlen) |
fdc79501 | 1157 | write_byte(f_out, '/'); |
0f2ac855 | 1158 | } |
ed243f8c | 1159 | flp->tail = prev; |
c627d613 AT |
1160 | } |
1161 | ||
fdc79501 WD |
1162 | /* This is only called by the client. */ |
1163 | void send_filter_list(int f_out) | |
1164 | { | |
d5782b52 WD |
1165 | int receiver_wants_list = prune_empty_dirs |
1166 | || (delete_mode && (!delete_excluded || protocol_version >= 29)); | |
448797a1 WD |
1167 | |
1168 | if (local_server || (am_sender && !receiver_wants_list)) | |
fdc79501 WD |
1169 | f_out = -1; |
1170 | if (cvs_exclude && am_sender) { | |
1171 | if (protocol_version >= 29) | |
1172 | parse_rule(&filter_list, ":C", 0, 0); | |
1173 | parse_rule(&filter_list, "-C", 0, 0); | |
1174 | } | |
c627d613 | 1175 | |
fdc79501 WD |
1176 | /* This is a complete hack - blame Rusty. FIXME! |
1177 | * Remove this hack when older rsyncs (below 2.6.4) are gone. */ | |
1178 | if (list_only == 1 && !recurse) | |
1179 | parse_rule(&filter_list, "/*/*", MATCHFLG_NO_PREFIXES, 0); | |
1180 | ||
ed243f8c WD |
1181 | send_rules(f_out, &filter_list); |
1182 | ||
1183 | if (f_out >= 0) | |
fdc79501 | 1184 | write_int(f_out, 0); |
fdc79501 WD |
1185 | |
1186 | if (cvs_exclude) { | |
1187 | if (!am_sender || protocol_version < 29) | |
1188 | parse_rule(&filter_list, ":C", 0, 0); | |
1189 | if (!am_sender) | |
1190 | parse_rule(&filter_list, "-C", 0, 0); | |
1191 | } | |
1192 | } | |
1193 | ||
1194 | /* This is only called by the server. */ | |
1195 | void recv_filter_list(int f_in) | |
c627d613 | 1196 | { |
3fac51e2 | 1197 | char line[BIGPATHBUFLEN]; |
fdc79501 | 1198 | int xflags = protocol_version >= 29 ? 0 : XFLG_OLD_PREFIXES; |
d5782b52 | 1199 | int receiver_wants_list = prune_empty_dirs |
e257c6c2 WD |
1200 | || (delete_mode |
1201 | && (!delete_excluded || protocol_version >= 29)); | |
fdc79501 WD |
1202 | unsigned int len; |
1203 | ||
448797a1 | 1204 | if (!local_server && (am_sender || receiver_wants_list)) { |
fdc79501 WD |
1205 | while ((len = read_int(f_in)) != 0) { |
1206 | if (len >= sizeof line) | |
a1f99493 | 1207 | overflow_exit("recv_rules"); |
fdc79501 WD |
1208 | read_sbuf(f_in, line, len); |
1209 | parse_rule(&filter_list, line, 0, xflags); | |
1210 | } | |
1211 | } | |
9dd891bb | 1212 | |
fdc79501 | 1213 | if (cvs_exclude) { |
1412da7c | 1214 | if (local_server || am_sender || protocol_version < 29) |
fdc79501 | 1215 | parse_rule(&filter_list, ":C", 0, 0); |
1412da7c | 1216 | if (local_server || am_sender) |
fdc79501 | 1217 | parse_rule(&filter_list, "-C", 0, 0); |
651443a7 | 1218 | } |
ed243f8c WD |
1219 | |
1220 | if (local_server) /* filter out any rules that aren't for us. */ | |
1221 | send_rules(-1, &filter_list); | |
651443a7 | 1222 | } |