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 | |
ba2133d6 | 7 | * Copyright (C) 2003-2007 Wayne Davison |
0f2ac855 | 8 | * |
07a874fd | 9 | * This program is free software; you can redistribute it and/or modify |
4fd842f9 | 10 | * it under the terms of the GNU General Public License version 3 as |
ba2133d6 | 11 | * published by the Free Software Foundation. |
0f2ac855 | 12 | * |
07a874fd MP |
13 | * This program is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
0f2ac855 | 17 | * |
e7c67065 | 18 | * You should have received a copy of the GNU General Public License along |
4fd842f9 | 19 | * with this program; if not, visit the http://fsf.org website. |
07a874fd | 20 | */ |
c627d613 | 21 | |
c627d613 AT |
22 | #include "rsync.h" |
23 | ||
24 | extern int verbose; | |
5a016db9 | 25 | extern int am_server; |
fdc79501 | 26 | extern int am_sender; |
40d38dc0 WD |
27 | extern int eol_nulls; |
28 | extern int list_only; | |
29 | extern int recurse; | |
6dfd07d0 | 30 | extern int io_error; |
1412da7c | 31 | extern int local_server; |
d5782b52 | 32 | extern int prune_empty_dirs; |
ccdb23bb | 33 | extern int ignore_perishable; |
fdc79501 WD |
34 | extern int delete_mode; |
35 | extern int delete_excluded; | |
36 | extern int cvs_exclude; | |
6dfd07d0 WD |
37 | extern int sanitize_paths; |
38 | extern int protocol_version; | |
bf39270e | 39 | extern int module_id; |
40d38dc0 WD |
40 | |
41 | extern char curr_dir[]; | |
6dfd07d0 WD |
42 | extern unsigned int curr_dir_len; |
43 | extern unsigned int module_dirlen; | |
c627d613 | 44 | |
7842418b | 45 | struct filter_list_struct filter_list = { 0, 0, "" }; |
c81a20fb WD |
46 | struct filter_list_struct cvs_filter_list = { 0, 0, " [global CVS]" }; |
47 | struct filter_list_struct server_filter_list = { 0, 0, " [daemon]" }; | |
c627d613 | 48 | |
6dfd07d0 | 49 | /* Need room enough for ":MODS " prefix plus some room to grow. */ |
7842418b | 50 | #define MAX_RULE_PREFIX (16) |
6dfd07d0 | 51 | |
d727f0ff | 52 | #define MODIFIERS_MERGE_FILE "-+Cenw" |
ccdb23bb WD |
53 | #define MODIFIERS_INCL_EXCL "/!Crsp" |
54 | #define MODIFIERS_HIDE_PROTECT "/!p" | |
b6f06b8e | 55 | |
7842418b | 56 | /* The dirbuf is set by push_local_filters() to the current subdirectory |
6dfd07d0 WD |
57 | * relative to curr_dir that is being processed. The path always has a |
58 | * trailing slash appended, and the variable dirbuf_len contains the length | |
59 | * of this path prefix. The path is always absolute. */ | |
60 | static char dirbuf[MAXPATHLEN+1]; | |
61 | static unsigned int dirbuf_len = 0; | |
62 | static int dirbuf_depth; | |
63 | ||
64 | /* This is True when we're scanning parent dirs for per-dir merge-files. */ | |
65 | static BOOL parent_dirscan = False; | |
66 | ||
67 | /* This array contains a list of all the currently active per-dir merge | |
68 | * files. This makes it easier to save the appropriate values when we | |
69 | * "push" down into each subdirectory. */ | |
7842418b | 70 | static struct filter_struct **mergelist_parents; |
6dfd07d0 WD |
71 | static int mergelist_cnt = 0; |
72 | static int mergelist_size = 0; | |
73 | ||
7842418b | 74 | /* Each filter_list_struct describes a singly-linked list by keeping track |
6dfd07d0 WD |
75 | * of both the head and tail pointers. The list is slightly unusual in that |
76 | * a parent-dir's content can be appended to the end of the local list in a | |
77 | * special way: the last item in the local list has its "next" pointer set | |
78 | * to point to the inherited list, but the local list's tail pointer points | |
79 | * at the end of the local list. Thus, if the local list is empty, the head | |
80 | * will be pointing at the inherited content but the tail will be NULL. To | |
81 | * help you visualize this, here are the possible list arrangements: | |
82 | * | |
83 | * Completely Empty Local Content Only | |
84 | * ================================== ==================================== | |
85 | * head -> NULL head -> Local1 -> Local2 -> NULL | |
86 | * tail -> NULL tail -------------^ | |
87 | * | |
88 | * Inherited Content Only Both Local and Inherited Content | |
89 | * ================================== ==================================== | |
90 | * head -> Parent1 -> Parent2 -> NULL head -> L1 -> L2 -> P1 -> P2 -> NULL | |
91 | * tail -> NULL tail ---------^ | |
92 | * | |
93 | * This means that anyone wanting to traverse the whole list to use it just | |
94 | * needs to start at the head and use the "next" pointers until it goes | |
95 | * NULL. To add new local content, we insert the item after the tail item | |
96 | * and update the tail (obviously, if "tail" was NULL, we insert it at the | |
97 | * head). To clear the local list, WE MUST NOT FREE THE INHERITED CONTENT | |
98 | * because it is shared between the current list and our parent list(s). | |
99 | * The easiest way to handle this is to simply truncate the list after the | |
100 | * tail item and then free the local list from the head. When inheriting | |
7842418b | 101 | * the list for a new local dir, we just save off the filter_list_struct |
6dfd07d0 WD |
102 | * values (so we can pop back to them later) and set the tail to NULL. |
103 | */ | |
104 | ||
7842418b | 105 | static void free_filter(struct filter_struct *ex) |
6dfd07d0 WD |
106 | { |
107 | if (ex->match_flags & MATCHFLG_PERDIR_MERGE) { | |
108 | free(ex->u.mergelist->debug_type); | |
109 | free(ex->u.mergelist); | |
110 | mergelist_cnt--; | |
111 | } | |
112 | free(ex->pattern); | |
113 | free(ex); | |
114 | } | |
115 | ||
7842418b | 116 | /* Build a filter structure given a filter pattern. The value in "pat" |
6dfd07d0 | 117 | * is not null-terminated. */ |
fdc79501 WD |
118 | static void add_rule(struct filter_list_struct *listp, const char *pat, |
119 | unsigned int pat_len, uint32 mflags, int xflags) | |
c627d613 | 120 | { |
7842418b | 121 | struct filter_struct *ret; |
f8f72644 | 122 | const char *cp; |
5e972dcf | 123 | unsigned int ex_len; |
c627d613 | 124 | |
6dfd07d0 | 125 | if (verbose > 2) { |
fdc79501 WD |
126 | rprintf(FINFO, "[%s] add_rule(%s%.*s%s)%s\n", |
127 | who_am_i(), get_rule_prefix(mflags, pat, 0, NULL), | |
128 | (int)pat_len, pat, | |
129 | (mflags & MATCHFLG_DIRECTORY) ? "/" : "", | |
6dfd07d0 WD |
130 | listp->debug_type); |
131 | } | |
132 | ||
4fc8140a | 133 | /* These flags also indicate that we're reading a list that |
6d7b3d52 | 134 | * needs to be filtered now, not post-filtered later. */ |
4fc8140a | 135 | if (xflags & (XFLG_ANCHORED2ABS|XFLG_ABS_IF_SLASH)) { |
6d7b3d52 WD |
136 | uint32 mf = mflags & (MATCHFLG_RECEIVER_SIDE|MATCHFLG_SENDER_SIDE); |
137 | if (am_sender) { | |
138 | if (mf == MATCHFLG_RECEIVER_SIDE) | |
139 | return; | |
140 | } else { | |
141 | if (mf == MATCHFLG_SENDER_SIDE) | |
142 | return; | |
143 | } | |
144 | } | |
145 | ||
fdc79501 WD |
146 | if (!(ret = new(struct filter_struct))) |
147 | out_of_memory("add_rule"); | |
5f5be796 | 148 | memset(ret, 0, sizeof ret[0]); |
2b6b4d53 | 149 | |
4fc8140a WD |
150 | if (!(mflags & (MATCHFLG_ABS_PATH | MATCHFLG_MERGE_FILE)) |
151 | && ((xflags & (XFLG_ANCHORED2ABS|XFLG_ABS_IF_SLASH) && *pat == '/') | |
152 | || (xflags & XFLG_ABS_IF_SLASH && strchr(pat, '/') != NULL))) { | |
bf39270e | 153 | mflags |= MATCHFLG_ABS_PATH; |
4fc8140a WD |
154 | if (*pat == '/') |
155 | ex_len = dirbuf_len - module_dirlen - 1; | |
156 | else | |
157 | ex_len = 0; | |
6dfd07d0 | 158 | } else |
f8f72644 | 159 | ex_len = 0; |
fdc79501 WD |
160 | if (!(ret->pattern = new_array(char, ex_len + pat_len + 1))) |
161 | out_of_memory("add_rule"); | |
f8f72644 | 162 | if (ex_len) |
6dfd07d0 | 163 | memcpy(ret->pattern, dirbuf + module_dirlen, ex_len); |
5e972dcf | 164 | strlcpy(ret->pattern + ex_len, pat, pat_len + 1); |
f8f72644 WD |
165 | pat_len += ex_len; |
166 | ||
167 | if (strpbrk(ret->pattern, "*[?")) { | |
5e972dcf | 168 | mflags |= MATCHFLG_WILD; |
96d3590a | 169 | if ((cp = strstr(ret->pattern, "**")) != NULL) { |
5e972dcf | 170 | mflags |= MATCHFLG_WILD2; |
170381c0 | 171 | /* If the pattern starts with **, note that. */ |
96d3590a | 172 | if (cp == ret->pattern) |
5e972dcf | 173 | mflags |= MATCHFLG_WILD2_PREFIX; |
e5daa273 WD |
174 | /* If the pattern ends with ***, note that. */ |
175 | if (pat_len >= 3 | |
176 | && ret->pattern[pat_len-3] == '*' | |
177 | && ret->pattern[pat_len-2] == '*' | |
178 | && ret->pattern[pat_len-1] == '*') | |
179 | mflags |= MATCHFLG_WILD3_SUFFIX; | |
0f2ac855 | 180 | } |
2bca43f6 | 181 | } |
c627d613 | 182 | |
5be7fa93 WD |
183 | if (pat_len > 1 && ret->pattern[pat_len-1] == '/') { |
184 | ret->pattern[pat_len-1] = 0; | |
5e972dcf | 185 | mflags |= MATCHFLG_DIRECTORY; |
2b6b4d53 | 186 | } |
c627d613 | 187 | |
6dfd07d0 | 188 | if (mflags & MATCHFLG_PERDIR_MERGE) { |
7842418b | 189 | struct filter_list_struct *lp; |
6dfd07d0 WD |
190 | unsigned int len; |
191 | int i; | |
192 | ||
193 | if ((cp = strrchr(ret->pattern, '/')) != NULL) | |
194 | cp++; | |
195 | else | |
196 | cp = ret->pattern; | |
197 | ||
198 | /* If the local merge file was already mentioned, don't | |
199 | * add it again. */ | |
200 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b | 201 | struct filter_struct *ex = mergelist_parents[i]; |
6dfd07d0 WD |
202 | const char *s = strrchr(ex->pattern, '/'); |
203 | if (s) | |
bf39270e | 204 | s++; |
6dfd07d0 | 205 | else |
bf39270e | 206 | s = ex->pattern; |
6dfd07d0 WD |
207 | len = strlen(s); |
208 | if (len == pat_len - (cp - ret->pattern) | |
209 | && memcmp(s, cp, len) == 0) { | |
7842418b | 210 | free_filter(ret); |
6dfd07d0 WD |
211 | return; |
212 | } | |
213 | } | |
214 | ||
7842418b | 215 | if (!(lp = new_array(struct filter_list_struct, 1))) |
fdc79501 | 216 | out_of_memory("add_rule"); |
6dfd07d0 | 217 | lp->head = lp->tail = NULL; |
fdc79501 WD |
218 | if (asprintf(&lp->debug_type, " [per-dir %s]", cp) < 0) |
219 | out_of_memory("add_rule"); | |
6dfd07d0 WD |
220 | ret->u.mergelist = lp; |
221 | ||
222 | if (mergelist_cnt == mergelist_size) { | |
223 | mergelist_size += 5; | |
224 | mergelist_parents = realloc_array(mergelist_parents, | |
7842418b | 225 | struct filter_struct *, |
6dfd07d0 WD |
226 | mergelist_size); |
227 | if (!mergelist_parents) | |
fdc79501 | 228 | out_of_memory("add_rule"); |
6dfd07d0 WD |
229 | } |
230 | mergelist_parents[mergelist_cnt++] = ret; | |
231 | } else { | |
232 | for (cp = ret->pattern; (cp = strchr(cp, '/')) != NULL; cp++) | |
233 | ret->u.slash_cnt++; | |
234 | } | |
0944563e | 235 | |
c1b29492 WD |
236 | ret->match_flags = mflags; |
237 | ||
6dfd07d0 WD |
238 | if (!listp->tail) { |
239 | ret->next = listp->head; | |
b2aa573b | 240 | listp->head = listp->tail = ret; |
6dfd07d0 WD |
241 | } else { |
242 | ret->next = listp->tail->next; | |
b2aa573b WD |
243 | listp->tail->next = ret; |
244 | listp->tail = ret; | |
245 | } | |
2b6b4d53 AT |
246 | } |
247 | ||
7842418b | 248 | static void clear_filter_list(struct filter_list_struct *listp) |
2b6b4d53 | 249 | { |
6dfd07d0 | 250 | if (listp->tail) { |
7842418b | 251 | struct filter_struct *ent, *next; |
6dfd07d0 WD |
252 | /* Truncate any inherited items from the local list. */ |
253 | listp->tail->next = NULL; | |
254 | /* Now free everything that is left. */ | |
255 | for (ent = listp->head; ent; ent = next) { | |
256 | next = ent->next; | |
7842418b | 257 | free_filter(ent); |
6dfd07d0 WD |
258 | } |
259 | } | |
260 | ||
261 | listp->head = listp->tail = NULL; | |
2b6b4d53 | 262 | } |
c627d613 | 263 | |
6dfd07d0 WD |
264 | /* This returns an expanded (absolute) filename for the merge-file name if |
265 | * the name has any slashes in it OR if the parent_dirscan var is True; | |
266 | * otherwise it returns the original merge_file name. If the len_ptr value | |
267 | * is non-NULL the merge_file name is limited by the referenced length | |
268 | * value and will be updated with the length of the resulting name. We | |
269 | * always return a name that is null terminated, even if the merge_file | |
270 | * name was not. */ | |
271 | static char *parse_merge_name(const char *merge_file, unsigned int *len_ptr, | |
272 | unsigned int prefix_skip) | |
5be7fa93 | 273 | { |
6dfd07d0 WD |
274 | static char buf[MAXPATHLEN]; |
275 | char *fn, tmpbuf[MAXPATHLEN]; | |
276 | unsigned int fn_len; | |
277 | ||
278 | if (!parent_dirscan && *merge_file != '/') { | |
279 | /* Return the name unchanged it doesn't have any slashes. */ | |
280 | if (len_ptr) { | |
281 | const char *p = merge_file + *len_ptr; | |
282 | while (--p > merge_file && *p != '/') {} | |
283 | if (p == merge_file) { | |
284 | strlcpy(buf, merge_file, *len_ptr + 1); | |
285 | return buf; | |
286 | } | |
287 | } else if (strchr(merge_file, '/') == NULL) | |
288 | return (char *)merge_file; | |
289 | } | |
5be7fa93 | 290 | |
6dfd07d0 WD |
291 | fn = *merge_file == '/' ? buf : tmpbuf; |
292 | if (sanitize_paths) { | |
293 | const char *r = prefix_skip ? "/" : NULL; | |
294 | /* null-terminate the name if it isn't already */ | |
295 | if (len_ptr && merge_file[*len_ptr]) { | |
296 | char *to = fn == buf ? tmpbuf : buf; | |
297 | strlcpy(to, merge_file, *len_ptr + 1); | |
298 | merge_file = to; | |
299 | } | |
91f4b31f | 300 | if (!sanitize_path(fn, merge_file, r, dirbuf_depth, NULL)) { |
6dfd07d0 | 301 | rprintf(FERROR, "merge-file name overflows: %s\n", |
45c49b52 | 302 | merge_file); |
6dfd07d0 WD |
303 | return NULL; |
304 | } | |
798cde47 | 305 | fn_len = strlen(fn); |
6dfd07d0 WD |
306 | } else { |
307 | strlcpy(fn, merge_file, len_ptr ? *len_ptr + 1 : MAXPATHLEN); | |
798cde47 | 308 | fn_len = clean_fname(fn, 1); |
b2aa573b | 309 | } |
0f78b815 | 310 | |
798cde47 WD |
311 | /* If the name isn't in buf yet, it's wasn't absolute. */ |
312 | if (fn != buf) { | |
313 | if (dirbuf_len + fn_len >= MAXPATHLEN) { | |
314 | rprintf(FERROR, "merge-file name overflows: %s\n", fn); | |
315 | return NULL; | |
316 | } | |
317 | memcpy(buf, dirbuf + prefix_skip, dirbuf_len - prefix_skip); | |
318 | memcpy(buf + dirbuf_len - prefix_skip, fn, fn_len + 1); | |
319 | fn_len = clean_fname(buf, 1); | |
6dfd07d0 | 320 | } |
6dfd07d0 | 321 | |
6dfd07d0 WD |
322 | if (len_ptr) |
323 | *len_ptr = fn_len; | |
324 | return buf; | |
325 | } | |
5be7fa93 | 326 | |
6dfd07d0 | 327 | /* Sets the dirbuf and dirbuf_len values. */ |
7842418b | 328 | void set_filter_dir(const char *dir, unsigned int dirlen) |
6dfd07d0 WD |
329 | { |
330 | unsigned int len; | |
331 | if (*dir != '/') { | |
332 | memcpy(dirbuf, curr_dir, curr_dir_len); | |
333 | dirbuf[curr_dir_len] = '/'; | |
334 | len = curr_dir_len + 1; | |
335 | if (len + dirlen >= MAXPATHLEN) | |
336 | dirlen = 0; | |
337 | } else | |
338 | len = 0; | |
339 | memcpy(dirbuf + len, dir, dirlen); | |
340 | dirbuf[dirlen + len] = '\0'; | |
341 | dirbuf_len = clean_fname(dirbuf, 1); | |
342 | if (dirbuf_len > 1 && dirbuf[dirbuf_len-1] == '.' | |
343 | && dirbuf[dirbuf_len-2] == '/') | |
344 | dirbuf_len -= 2; | |
345 | if (dirbuf_len != 1) | |
346 | dirbuf[dirbuf_len++] = '/'; | |
347 | dirbuf[dirbuf_len] = '\0'; | |
348 | if (sanitize_paths) | |
349 | dirbuf_depth = count_dir_elements(dirbuf + module_dirlen); | |
350 | } | |
351 | ||
352 | /* This routine takes a per-dir merge-file entry and finishes its setup. | |
353 | * If the name has a path portion then we check to see if it refers to a | |
354 | * parent directory of the first transfer dir. If it does, we scan all the | |
355 | * dirs from that point through the parent dir of the transfer dir looking | |
356 | * for the per-dir merge-file in each one. */ | |
7842418b | 357 | static BOOL setup_merge_file(struct filter_struct *ex, |
b6f06b8e | 358 | struct filter_list_struct *lp) |
6dfd07d0 WD |
359 | { |
360 | char buf[MAXPATHLEN]; | |
361 | char *x, *y, *pat = ex->pattern; | |
362 | unsigned int len; | |
363 | ||
364 | if (!(x = parse_merge_name(pat, NULL, 0)) || *x != '/') | |
365 | return 0; | |
366 | ||
367 | y = strrchr(x, '/'); | |
368 | *y = '\0'; | |
369 | ex->pattern = strdup(y+1); | |
370 | if (!*x) | |
371 | x = "/"; | |
372 | if (*x == '/') | |
373 | strlcpy(buf, x, MAXPATHLEN); | |
374 | else | |
375 | pathjoin(buf, MAXPATHLEN, dirbuf, x); | |
376 | ||
377 | len = clean_fname(buf, 1); | |
378 | if (len != 1 && len < MAXPATHLEN-1) { | |
379 | buf[len++] = '/'; | |
380 | buf[len] = '\0'; | |
381 | } | |
382 | /* This ensures that the specified dir is a parent of the transfer. */ | |
383 | for (x = buf, y = dirbuf; *x && *x == *y; x++, y++) {} | |
384 | if (*x) | |
385 | y += strlen(y); /* nope -- skip the scan */ | |
386 | ||
387 | parent_dirscan = True; | |
388 | while (*y) { | |
389 | char save[MAXPATHLEN]; | |
390 | strlcpy(save, y, MAXPATHLEN); | |
391 | *y = '\0'; | |
392 | dirbuf_len = y - dirbuf; | |
393 | strlcpy(x, ex->pattern, MAXPATHLEN - (x - buf)); | |
fdc79501 | 394 | parse_filter_file(lp, buf, ex->match_flags, XFLG_ANCHORED2ABS); |
6dfd07d0 WD |
395 | if (ex->match_flags & MATCHFLG_NO_INHERIT) |
396 | lp->head = NULL; | |
397 | lp->tail = NULL; | |
398 | strlcpy(y, save, MAXPATHLEN); | |
399 | while ((*x++ = *y++) != '/') {} | |
400 | } | |
401 | parent_dirscan = False; | |
402 | free(pat); | |
403 | return 1; | |
404 | } | |
405 | ||
406 | /* Each time rsync changes to a new directory it call this function to | |
407 | * handle all the per-dir merge-files. The "dir" value is the current path | |
408 | * relative to curr_dir (which might not be null-terminated). We copy it | |
409 | * into dirbuf so that we can easily append a file name on the end. */ | |
7842418b | 410 | void *push_local_filters(const char *dir, unsigned int dirlen) |
6dfd07d0 | 411 | { |
7842418b | 412 | struct filter_list_struct *ap, *push; |
6dfd07d0 WD |
413 | int i; |
414 | ||
7842418b | 415 | set_filter_dir(dir, dirlen); |
6dfd07d0 | 416 | |
a2b371cd WD |
417 | if (!mergelist_cnt) |
418 | return NULL; | |
419 | ||
7842418b | 420 | push = new_array(struct filter_list_struct, mergelist_cnt); |
6dfd07d0 | 421 | if (!push) |
7842418b | 422 | out_of_memory("push_local_filters"); |
6dfd07d0 WD |
423 | |
424 | for (i = 0, ap = push; i < mergelist_cnt; i++) { | |
425 | memcpy(ap++, mergelist_parents[i]->u.mergelist, | |
7842418b | 426 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
427 | } |
428 | ||
fdc79501 | 429 | /* Note: parse_filter_file() might increase mergelist_cnt, so keep |
6dfd07d0 WD |
430 | * this loop separate from the above loop. */ |
431 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b WD |
432 | struct filter_struct *ex = mergelist_parents[i]; |
433 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
434 | |
435 | if (verbose > 2) { | |
7842418b | 436 | rprintf(FINFO, "[%s] pushing filter list%s\n", |
6dfd07d0 WD |
437 | who_am_i(), lp->debug_type); |
438 | } | |
439 | ||
440 | lp->tail = NULL; /* Switch any local rules to inherited. */ | |
441 | if (ex->match_flags & MATCHFLG_NO_INHERIT) | |
442 | lp->head = NULL; | |
6dfd07d0 WD |
443 | |
444 | if (ex->match_flags & MATCHFLG_FINISH_SETUP) { | |
445 | ex->match_flags &= ~MATCHFLG_FINISH_SETUP; | |
b6f06b8e | 446 | if (setup_merge_file(ex, lp)) |
7842418b | 447 | set_filter_dir(dir, dirlen); |
6dfd07d0 WD |
448 | } |
449 | ||
450 | if (strlcpy(dirbuf + dirbuf_len, ex->pattern, | |
b6f06b8e | 451 | MAXPATHLEN - dirbuf_len) < MAXPATHLEN - dirbuf_len) { |
fdc79501 WD |
452 | parse_filter_file(lp, dirbuf, ex->match_flags, |
453 | XFLG_ANCHORED2ABS); | |
b6f06b8e | 454 | } else { |
6dfd07d0 WD |
455 | io_error |= IOERR_GENERAL; |
456 | rprintf(FINFO, | |
7842418b | 457 | "cannot add local filter rules in long-named directory: %s\n", |
6dfd07d0 WD |
458 | full_fname(dirbuf)); |
459 | } | |
460 | dirbuf[dirbuf_len] = '\0'; | |
461 | } | |
462 | ||
463 | return (void*)push; | |
464 | } | |
465 | ||
7842418b | 466 | void pop_local_filters(void *mem) |
6dfd07d0 | 467 | { |
7842418b | 468 | struct filter_list_struct *ap, *pop = (struct filter_list_struct*)mem; |
6dfd07d0 WD |
469 | int i; |
470 | ||
471 | for (i = mergelist_cnt; i-- > 0; ) { | |
7842418b WD |
472 | struct filter_struct *ex = mergelist_parents[i]; |
473 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
474 | |
475 | if (verbose > 2) { | |
7842418b | 476 | rprintf(FINFO, "[%s] popping filter list%s\n", |
6dfd07d0 WD |
477 | who_am_i(), lp->debug_type); |
478 | } | |
479 | ||
7842418b | 480 | clear_filter_list(lp); |
6dfd07d0 WD |
481 | } |
482 | ||
a2b371cd WD |
483 | if (!pop) |
484 | return; | |
485 | ||
6dfd07d0 WD |
486 | for (i = 0, ap = pop; i < mergelist_cnt; i++) { |
487 | memcpy(mergelist_parents[i]->u.mergelist, ap++, | |
7842418b | 488 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
489 | } |
490 | ||
491 | free(pop); | |
5be7fa93 WD |
492 | } |
493 | ||
fe04532a WD |
494 | void change_local_filter_dir(const char *dname, int dlen, int dir_depth) |
495 | { | |
496 | static int min_depth = MAXPATHLEN, cur_depth = -1; | |
497 | static void *filt_array[MAXPATHLEN/2+1]; | |
498 | ||
499 | if (!dname) { | |
500 | while (cur_depth >= min_depth) | |
501 | pop_local_filters(filt_array[cur_depth--]); | |
502 | min_depth = MAXPATHLEN; | |
503 | cur_depth = -1; | |
504 | return; | |
505 | } | |
506 | ||
507 | assert(dir_depth < MAXPATHLEN/2+1); | |
508 | ||
509 | while (cur_depth >= dir_depth && cur_depth >= min_depth) | |
510 | pop_local_filters(filt_array[cur_depth--]); | |
511 | cur_depth = dir_depth; | |
512 | if (cur_depth < min_depth) | |
513 | min_depth = cur_depth; | |
514 | ||
515 | filt_array[cur_depth] = push_local_filters(dname, dlen); | |
516 | } | |
517 | ||
7842418b | 518 | static int rule_matches(char *name, struct filter_struct *ex, int name_is_dir) |
2b6b4d53 | 519 | { |
e5daa273 | 520 | int slash_handling, str_cnt = 0, anchored_match = 0; |
f2ae9e85 | 521 | int ret_match = ex->match_flags & MATCHFLG_NEGATE ? 0 : 1; |
e5daa273 WD |
522 | char *p, *pattern = ex->pattern; |
523 | const char *strings[16]; /* more than enough */ | |
2b6b4d53 | 524 | |
29930a9f WD |
525 | if (*name == '/') |
526 | name++; | |
9f186578 WD |
527 | if (!*name) |
528 | return 0; | |
529 | ||
6dfd07d0 | 530 | if (!ex->u.slash_cnt && !(ex->match_flags & MATCHFLG_WILD2)) { |
770de899 WD |
531 | /* If the pattern does not have any slashes AND it does |
532 | * not have a "**" (which could match a slash), then we | |
533 | * just match the name portion of the path. */ | |
5be7fa93 WD |
534 | if ((p = strrchr(name,'/')) != NULL) |
535 | name = p+1; | |
770de899 | 536 | } else if (ex->match_flags & MATCHFLG_ABS_PATH && *name != '/' |
6dfd07d0 | 537 | && curr_dir_len > module_dirlen + 1) { |
770de899 WD |
538 | /* If we're matching against an absolute-path pattern, |
539 | * we need to prepend our full path info. */ | |
e5daa273 WD |
540 | strings[str_cnt++] = curr_dir + module_dirlen + 1; |
541 | strings[str_cnt++] = "/"; | |
542 | } else if (ex->match_flags & MATCHFLG_WILD2_PREFIX && *name != '/') { | |
543 | /* Allow "**"+"/" to match at the start of the string. */ | |
544 | strings[str_cnt++] = "/"; | |
5be7fa93 | 545 | } |
e5daa273 WD |
546 | strings[str_cnt++] = name; |
547 | if (name_is_dir) { | |
548 | /* Allow a trailing "/"+"***" to match the directory. */ | |
549 | if (ex->match_flags & MATCHFLG_WILD3_SUFFIX) | |
550 | strings[str_cnt++] = "/"; | |
551 | } else if (ex->match_flags & MATCHFLG_DIRECTORY) | |
f2ae9e85 | 552 | return !ret_match; |
e5daa273 | 553 | strings[str_cnt] = NULL; |
2b6b4d53 | 554 | |
170381c0 | 555 | if (*pattern == '/') { |
770de899 | 556 | anchored_match = 1; |
2b6b4d53 AT |
557 | pattern++; |
558 | } | |
559 | ||
e5daa273 WD |
560 | if (!anchored_match && ex->u.slash_cnt |
561 | && !(ex->match_flags & MATCHFLG_WILD2)) { | |
170381c0 WD |
562 | /* A non-anchored match with an infix slash and no "**" |
563 | * needs to match the last slash_cnt+1 name elements. */ | |
e5daa273 WD |
564 | slash_handling = ex->u.slash_cnt + 1; |
565 | } else if (!anchored_match && !(ex->match_flags & MATCHFLG_WILD2_PREFIX) | |
566 | && ex->match_flags & MATCHFLG_WILD2) { | |
567 | /* A non-anchored match with an infix or trailing "**" (but not | |
568 | * a prefixed "**") needs to try matching after every slash. */ | |
569 | slash_handling = -1; | |
570 | } else { | |
571 | /* The pattern matches only at the start of the path or name. */ | |
572 | slash_handling = 0; | |
573 | } | |
574 | ||
575 | if (ex->match_flags & MATCHFLG_WILD) { | |
576 | if (wildmatch_array(pattern, strings, slash_handling)) | |
577 | return ret_match; | |
578 | } else if (str_cnt > 1) { | |
579 | if (litmatch_array(pattern, strings, slash_handling)) | |
f2ae9e85 | 580 | return ret_match; |
770de899 | 581 | } else if (anchored_match) { |
48ecccce | 582 | if (strcmp(name, pattern) == 0) |
f2ae9e85 | 583 | return ret_match; |
2b6b4d53 AT |
584 | } else { |
585 | int l1 = strlen(name); | |
ea2111d1 | 586 | int l2 = strlen(pattern); |
0f2ac855 | 587 | if (l2 <= l1 && |
ea2111d1 | 588 | strcmp(name+(l1-l2),pattern) == 0 && |
170381c0 | 589 | (l1==l2 || name[l1-(l2+1)] == '/')) { |
f2ae9e85 | 590 | return ret_match; |
c36cd317 | 591 | } |
2b6b4d53 AT |
592 | } |
593 | ||
f2ae9e85 | 594 | return !ret_match; |
c627d613 AT |
595 | } |
596 | ||
597 | ||
7842418b WD |
598 | static void report_filter_result(char const *name, |
599 | struct filter_struct const *ent, | |
600 | int name_is_dir, const char *type) | |
d567322f | 601 | { |
0f2ac855 | 602 | /* If a trailing slash is present to match only directories, |
fdc79501 | 603 | * then it is stripped out by add_rule(). So as a special |
0f2ac855 WD |
604 | * case we add it back in here. */ |
605 | ||
ea847c62 | 606 | if (verbose >= 2) { |
d5782b52 WD |
607 | static char *actions[2][2] |
608 | = { {"show", "hid"}, {"risk", "protect"} }; | |
609 | const char *w = who_am_i(); | |
610 | rprintf(FINFO, "[%s] %sing %s %s because of pattern %s%s%s\n", | |
611 | w, actions[*w!='s'][!(ent->match_flags&MATCHFLG_INCLUDE)], | |
612 | name_is_dir ? "directory" : "file", name, ent->pattern, | |
613 | ent->match_flags & MATCHFLG_DIRECTORY ? "/" : "", type); | |
ea847c62 | 614 | } |
d567322f MP |
615 | } |
616 | ||
617 | ||
618 | /* | |
a6536635 WD |
619 | * Return -1 if file "name" is defined to be excluded by the specified |
620 | * exclude list, 1 if it is included, and 0 if it was not matched. | |
d567322f | 621 | */ |
7842418b | 622 | int check_filter(struct filter_list_struct *listp, char *name, int name_is_dir) |
c627d613 | 623 | { |
7842418b | 624 | struct filter_struct *ent; |
c627d613 | 625 | |
b2aa573b | 626 | for (ent = listp->head; ent; ent = ent->next) { |
ccdb23bb WD |
627 | if (ignore_perishable && ent->match_flags & MATCHFLG_PERISHABLE) |
628 | continue; | |
6dfd07d0 | 629 | if (ent->match_flags & MATCHFLG_PERDIR_MERGE) { |
7842418b WD |
630 | int rc = check_filter(ent->u.mergelist, name, |
631 | name_is_dir); | |
6dfd07d0 WD |
632 | if (rc) |
633 | return rc; | |
634 | continue; | |
635 | } | |
fdc79501 WD |
636 | if (ent->match_flags & MATCHFLG_CVS_IGNORE) { |
637 | int rc = check_filter(&cvs_filter_list, name, | |
638 | name_is_dir); | |
639 | if (rc) | |
640 | return rc; | |
641 | continue; | |
642 | } | |
7842418b WD |
643 | if (rule_matches(name, ent, name_is_dir)) { |
644 | report_filter_result(name, ent, name_is_dir, | |
67340e95 | 645 | listp->debug_type); |
5e972dcf | 646 | return ent->match_flags & MATCHFLG_INCLUDE ? 1 : -1; |
0f2ac855 | 647 | } |
2b6b4d53 | 648 | } |
c627d613 | 649 | |
2b6b4d53 | 650 | return 0; |
c627d613 AT |
651 | } |
652 | ||
345e0988 | 653 | #define RULE_STRCMP(s,r) rule_strcmp((s), (r), sizeof (r) - 1) |
a1ac8edd | 654 | |
4adbb5f2 | 655 | static const uchar *rule_strcmp(const uchar *str, const char *rule, int rule_len) |
a1ac8edd | 656 | { |
4adbb5f2 | 657 | if (strncmp((char*)str, rule, rule_len) != 0) |
a1ac8edd WD |
658 | return NULL; |
659 | if (isspace(str[rule_len]) || str[rule_len] == '_' || !str[rule_len]) | |
660 | return str + rule_len - 1; | |
661 | if (str[rule_len] == ',') | |
662 | return str + rule_len; | |
663 | return NULL; | |
664 | } | |
c627d613 | 665 | |
f8f72644 WD |
666 | /* Get the next include/exclude arg from the string. The token will not |
667 | * be '\0' terminated, so use the returned length to limit the string. | |
668 | * Also, be sure to add this length to the returned pointer before passing | |
e425fbe8 | 669 | * it back to ask for the next token. This routine parses the "!" (list- |
b6f06b8e WD |
670 | * clearing) token and (depending on the mflags) the various prefixes. |
671 | * The *mflags_ptr value will be set on exit to the new MATCHFLG_* bits | |
672 | * for the current token. */ | |
fdc79501 WD |
673 | static const char *parse_rule_tok(const char *p, uint32 mflags, int xflags, |
674 | unsigned int *len_ptr, uint32 *mflags_ptr) | |
f8f72644 | 675 | { |
fdc79501 WD |
676 | const uchar *s = (const uchar *)p; |
677 | uint32 new_mflags; | |
678 | unsigned int len; | |
f8f72644 | 679 | |
b6f06b8e | 680 | if (mflags & MATCHFLG_WORD_SPLIT) { |
96d3590a WD |
681 | /* Skip over any initial whitespace. */ |
682 | while (isspace(*s)) | |
f8f72644 | 683 | s++; |
6dfd07d0 | 684 | /* Update to point to real start of rule. */ |
abca4eba | 685 | p = (const char *)s; |
f8f72644 | 686 | } |
6dfd07d0 WD |
687 | if (!*s) |
688 | return NULL; | |
689 | ||
b6f06b8e WD |
690 | new_mflags = mflags & MATCHFLGS_FROM_CONTAINER; |
691 | ||
692 | /* Figure out what kind of a filter rule "s" is pointing at. Note | |
693 | * that if MATCHFLG_NO_PREFIXES is set, the rule is either an include | |
694 | * or an exclude based on the inheritance of the MATCHFLG_INCLUDE | |
695 | * flag (above). XFLG_OLD_PREFIXES indicates a compatibility mode | |
696 | * for old include/exclude patterns where just "+ " and "- " are | |
697 | * allowed as optional prefixes. */ | |
698 | if (mflags & MATCHFLG_NO_PREFIXES) { | |
a1ac8edd | 699 | if (*s == '!' && mflags & MATCHFLG_CVS_IGNORE) |
b6f06b8e WD |
700 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
701 | } else if (xflags & XFLG_OLD_PREFIXES) { | |
702 | if (*s == '-' && s[1] == ' ') { | |
703 | new_mflags &= ~MATCHFLG_INCLUDE; | |
704 | s += 2; | |
705 | } else if (*s == '+' && s[1] == ' ') { | |
706 | new_mflags |= MATCHFLG_INCLUDE; | |
707 | s += 2; | |
664cf327 | 708 | } else if (*s == '!') |
b6f06b8e WD |
709 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
710 | } else { | |
a1ac8edd | 711 | char ch = 0, *mods = ""; |
6dfd07d0 | 712 | switch (*s) { |
a1ac8edd | 713 | case 'c': |
345e0988 | 714 | if ((s = RULE_STRCMP(s, "clear")) != NULL) |
a1ac8edd WD |
715 | ch = '!'; |
716 | break; | |
717 | case 'd': | |
345e0988 | 718 | if ((s = RULE_STRCMP(s, "dir-merge")) != NULL) |
a1ac8edd WD |
719 | ch = ':'; |
720 | break; | |
721 | case 'e': | |
345e0988 | 722 | if ((s = RULE_STRCMP(s, "exclude")) != NULL) |
a1ac8edd WD |
723 | ch = '-'; |
724 | break; | |
ed243f8c WD |
725 | case 'h': |
726 | if ((s = RULE_STRCMP(s, "hide")) != NULL) | |
727 | ch = 'H'; | |
728 | break; | |
a1ac8edd | 729 | case 'i': |
345e0988 | 730 | if ((s = RULE_STRCMP(s, "include")) != NULL) |
a1ac8edd WD |
731 | ch = '+'; |
732 | break; | |
733 | case 'm': | |
345e0988 | 734 | if ((s = RULE_STRCMP(s, "merge")) != NULL) |
a1ac8edd WD |
735 | ch = '.'; |
736 | break; | |
ed243f8c WD |
737 | case 'p': |
738 | if ((s = RULE_STRCMP(s, "protect")) != NULL) | |
739 | ch = 'P'; | |
740 | break; | |
741 | case 'r': | |
742 | if ((s = RULE_STRCMP(s, "risk")) != NULL) | |
743 | ch = 'R'; | |
744 | break; | |
745 | case 's': | |
746 | if ((s = RULE_STRCMP(s, "show")) != NULL) | |
747 | ch = 'S'; | |
748 | break; | |
a1ac8edd WD |
749 | default: |
750 | ch = *s; | |
64b761c1 WD |
751 | if (s[1] == ',') |
752 | s++; | |
a1ac8edd WD |
753 | break; |
754 | } | |
755 | switch (ch) { | |
6dfd07d0 | 756 | case ':': |
b6f06b8e WD |
757 | new_mflags |= MATCHFLG_PERDIR_MERGE |
758 | | MATCHFLG_FINISH_SETUP; | |
6dfd07d0 WD |
759 | /* FALL THROUGH */ |
760 | case '.': | |
b6f06b8e WD |
761 | new_mflags |= MATCHFLG_MERGE_FILE; |
762 | mods = MODIFIERS_INCL_EXCL MODIFIERS_MERGE_FILE; | |
6dfd07d0 WD |
763 | break; |
764 | case '+': | |
b6f06b8e | 765 | new_mflags |= MATCHFLG_INCLUDE; |
bf39270e | 766 | /* FALL THROUGH */ |
6dfd07d0 | 767 | case '-': |
b6f06b8e | 768 | mods = MODIFIERS_INCL_EXCL; |
6dfd07d0 | 769 | break; |
ed243f8c WD |
770 | case 'S': |
771 | new_mflags |= MATCHFLG_INCLUDE; | |
772 | /* FALL THROUGH */ | |
773 | case 'H': | |
774 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
775 | mods = MODIFIERS_HIDE_PROTECT; | |
776 | break; | |
777 | case 'R': | |
778 | new_mflags |= MATCHFLG_INCLUDE; | |
779 | /* FALL THROUGH */ | |
780 | case 'P': | |
781 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
782 | mods = MODIFIERS_HIDE_PROTECT; | |
783 | break; | |
6dfd07d0 | 784 | case '!': |
b6f06b8e | 785 | new_mflags |= MATCHFLG_CLEAR_LIST; |
6dfd07d0 WD |
786 | mods = NULL; |
787 | break; | |
788 | default: | |
ac1cb938 | 789 | rprintf(FERROR, "Unknown filter rule: `%s'\n", p); |
6dfd07d0 WD |
790 | exit_cleanup(RERR_SYNTAX); |
791 | } | |
bf39270e | 792 | while (mods && *++s && *s != ' ' && *s != '_') { |
6dfd07d0 | 793 | if (strchr(mods, *s) == NULL) { |
b6f06b8e | 794 | if (mflags & MATCHFLG_WORD_SPLIT && isspace(*s)) { |
6dfd07d0 WD |
795 | s--; |
796 | break; | |
797 | } | |
b6f06b8e | 798 | invalid: |
6dfd07d0 | 799 | rprintf(FERROR, |
b6f06b8e | 800 | "invalid modifier sequence at '%c' in filter rule: %s\n", |
6dfd07d0 WD |
801 | *s, p); |
802 | exit_cleanup(RERR_SYNTAX); | |
803 | } | |
804 | switch (*s) { | |
805 | case '-': | |
b6f06b8e WD |
806 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
807 | goto invalid; | |
808 | new_mflags |= MATCHFLG_NO_PREFIXES; | |
6dfd07d0 WD |
809 | break; |
810 | case '+': | |
b6f06b8e WD |
811 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
812 | goto invalid; | |
813 | new_mflags |= MATCHFLG_NO_PREFIXES | |
814 | | MATCHFLG_INCLUDE; | |
6dfd07d0 | 815 | break; |
bf39270e | 816 | case '/': |
b6f06b8e | 817 | new_mflags |= MATCHFLG_ABS_PATH; |
bf39270e | 818 | break; |
f2ae9e85 | 819 | case '!': |
b6f06b8e | 820 | new_mflags |= MATCHFLG_NEGATE; |
f2ae9e85 | 821 | break; |
6dfd07d0 | 822 | case 'C': |
b6f06b8e WD |
823 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
824 | goto invalid; | |
b6f06b8e WD |
825 | new_mflags |= MATCHFLG_NO_PREFIXES |
826 | | MATCHFLG_WORD_SPLIT | |
fdc79501 WD |
827 | | MATCHFLG_NO_INHERIT |
828 | | MATCHFLG_CVS_IGNORE; | |
6dfd07d0 WD |
829 | break; |
830 | case 'e': | |
b6f06b8e | 831 | new_mflags |= MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
832 | break; |
833 | case 'n': | |
b6f06b8e | 834 | new_mflags |= MATCHFLG_NO_INHERIT; |
6dfd07d0 | 835 | break; |
ccdb23bb WD |
836 | case 'p': |
837 | new_mflags |= MATCHFLG_PERISHABLE; | |
838 | break; | |
ed243f8c WD |
839 | case 'r': |
840 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
841 | break; | |
842 | case 's': | |
843 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
844 | break; | |
0b2901b7 | 845 | case 'w': |
b6f06b8e | 846 | new_mflags |= MATCHFLG_WORD_SPLIT; |
6dfd07d0 WD |
847 | break; |
848 | } | |
849 | } | |
850 | if (*s) | |
851 | s++; | |
6dfd07d0 WD |
852 | } |
853 | ||
b6f06b8e | 854 | if (mflags & MATCHFLG_WORD_SPLIT) { |
fdc79501 | 855 | const uchar *cp = s; |
96d3590a WD |
856 | /* Token ends at whitespace or the end of the string. */ |
857 | while (!isspace(*cp) && *cp != '\0') | |
858 | cp++; | |
859 | len = cp - s; | |
860 | } else | |
0eeb1cf8 | 861 | len = strlen((char*)s); |
96d3590a | 862 | |
b6f06b8e | 863 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
35a388b1 WD |
864 | if (!(mflags & MATCHFLG_NO_PREFIXES) |
865 | && !(xflags & XFLG_OLD_PREFIXES) && len) { | |
6dfd07d0 WD |
866 | rprintf(FERROR, |
867 | "'!' rule has trailing characters: %s\n", p); | |
868 | exit_cleanup(RERR_SYNTAX); | |
869 | } | |
870 | if (len > 1) | |
b6f06b8e | 871 | new_mflags &= ~MATCHFLG_CLEAR_LIST; |
fdc79501 | 872 | } else if (!len && !(new_mflags & MATCHFLG_CVS_IGNORE)) { |
6dfd07d0 WD |
873 | rprintf(FERROR, "unexpected end of filter rule: %s\n", p); |
874 | exit_cleanup(RERR_SYNTAX); | |
875 | } | |
876 | ||
f1678790 | 877 | /* --delete-excluded turns an un-modified include/exclude into a |
48ecccce WD |
878 | * sender-side rule. We also affect per-dir merge files that take |
879 | * no prefixes as a simple optimization. */ | |
f1678790 WD |
880 | if (delete_excluded |
881 | && !(new_mflags & (MATCHFLG_RECEIVER_SIDE|MATCHFLG_SENDER_SIDE)) | |
48ecccce WD |
882 | && (!(new_mflags & MATCHFLG_PERDIR_MERGE) |
883 | || new_mflags & MATCHFLG_NO_PREFIXES)) | |
f1678790 WD |
884 | new_mflags |= MATCHFLG_SENDER_SIDE; |
885 | ||
96d3590a | 886 | *len_ptr = len; |
b6f06b8e | 887 | *mflags_ptr = new_mflags; |
96d3590a | 888 | return (const char *)s; |
f8f72644 WD |
889 | } |
890 | ||
891 | ||
0f78b815 | 892 | static char default_cvsignore[] = |
46db1850 WD |
893 | /* These default ignored items come from the CVS manual. */ |
894 | "RCS SCCS CVS CVS.adm RCSLOG cvslog.* tags TAGS" | |
895 | " .make.state .nse_depinfo *~ #* .#* ,* _$* *$" | |
896 | " *.old *.bak *.BAK *.orig *.rej .del-*" | |
897 | " *.a *.olb *.o *.obj *.so *.exe" | |
898 | " *.Z *.elc *.ln core" | |
899 | /* The rest we added to suit ourself. */ | |
55c41263 | 900 | " .svn/ .bzr/"; |
46db1850 WD |
901 | |
902 | static void get_cvs_excludes(uint32 mflags) | |
903 | { | |
46db1850 | 904 | static int initialized = 0; |
c2f0e4d9 | 905 | char *p, fname[MAXPATHLEN]; |
46db1850 WD |
906 | |
907 | if (initialized) | |
908 | return; | |
909 | initialized = 1; | |
910 | ||
c2f0e4d9 WD |
911 | parse_rule(&cvs_filter_list, default_cvsignore, |
912 | mflags | (protocol_version >= 30 ? MATCHFLG_PERISHABLE : 0), | |
913 | 0); | |
46db1850 WD |
914 | |
915 | p = module_id >= 0 && lp_use_chroot(module_id) ? "/" : getenv("HOME"); | |
916 | if (p && pathjoin(fname, MAXPATHLEN, p, ".cvsignore") < MAXPATHLEN) | |
917 | parse_filter_file(&cvs_filter_list, fname, mflags, 0); | |
918 | ||
919 | parse_rule(&cvs_filter_list, getenv("CVSIGNORE"), mflags, 0); | |
920 | } | |
921 | ||
922 | ||
fdc79501 WD |
923 | void parse_rule(struct filter_list_struct *listp, const char *pattern, |
924 | uint32 mflags, int xflags) | |
c627d613 | 925 | { |
fdc79501 WD |
926 | unsigned int pat_len; |
927 | uint32 new_mflags; | |
6dfd07d0 | 928 | const char *cp, *p; |
5be7fa93 | 929 | |
f8f72644 | 930 | if (!pattern) |
5e7dbaca | 931 | return; |
f8f72644 | 932 | |
b2aa573b | 933 | while (1) { |
6dfd07d0 | 934 | /* Remember that the returned string is NOT '\0' terminated! */ |
fdc79501 | 935 | cp = parse_rule_tok(pattern, mflags, xflags, |
b6f06b8e | 936 | &pat_len, &new_mflags); |
6dfd07d0 | 937 | if (!cp) |
b2aa573b | 938 | break; |
969f7ed5 WD |
939 | |
940 | pattern = cp + pat_len; | |
941 | ||
6dfd07d0 | 942 | if (pat_len >= MAXPATHLEN) { |
969f7ed5 | 943 | rprintf(FERROR, "discarding over-long filter: %.*s\n", |
e8b21fe4 | 944 | (int)pat_len, cp); |
6dfd07d0 WD |
945 | continue; |
946 | } | |
5e972dcf | 947 | |
b6f06b8e | 948 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
de91e757 WD |
949 | if (verbose > 2) { |
950 | rprintf(FINFO, | |
7842418b | 951 | "[%s] clearing filter list%s\n", |
de91e757 WD |
952 | who_am_i(), listp->debug_type); |
953 | } | |
7842418b | 954 | clear_filter_list(listp); |
5e972dcf WD |
955 | continue; |
956 | } | |
b2aa573b | 957 | |
b6f06b8e | 958 | if (new_mflags & MATCHFLG_MERGE_FILE) { |
fdc79501 WD |
959 | unsigned int len; |
960 | if (!pat_len) { | |
961 | cp = ".cvsignore"; | |
962 | pat_len = 10; | |
963 | } | |
964 | len = pat_len; | |
b6f06b8e | 965 | if (new_mflags & MATCHFLG_EXCLUDE_SELF) { |
969f7ed5 WD |
966 | const char *name = cp + len; |
967 | while (name > cp && name[-1] != '/') name--; | |
968 | len -= name - cp; | |
fdc79501 | 969 | add_rule(listp, name, len, 0, 0); |
b6f06b8e | 970 | new_mflags &= ~MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
971 | len = pat_len; |
972 | } | |
b6f06b8e | 973 | if (new_mflags & MATCHFLG_PERDIR_MERGE) { |
6dfd07d0 | 974 | if (parent_dirscan) { |
b6f06b8e WD |
975 | if (!(p = parse_merge_name(cp, &len, |
976 | module_dirlen))) | |
6dfd07d0 | 977 | continue; |
fdc79501 | 978 | add_rule(listp, p, len, new_mflags, 0); |
6dfd07d0 WD |
979 | continue; |
980 | } | |
981 | } else { | |
6dfd07d0 WD |
982 | if (!(p = parse_merge_name(cp, &len, 0))) |
983 | continue; | |
fdc79501 WD |
984 | parse_filter_file(listp, p, new_mflags, |
985 | XFLG_FATAL_ERRORS); | |
6dfd07d0 WD |
986 | continue; |
987 | } | |
f8f72644 | 988 | } |
6dfd07d0 | 989 | |
fdc79501 WD |
990 | add_rule(listp, cp, pat_len, new_mflags, xflags); |
991 | ||
992 | if (new_mflags & MATCHFLG_CVS_IGNORE | |
993 | && !(new_mflags & MATCHFLG_MERGE_FILE)) | |
46db1850 | 994 | get_cvs_excludes(new_mflags); |
8c35542d | 995 | } |
c627d613 AT |
996 | } |
997 | ||
c627d613 | 998 | |
fdc79501 WD |
999 | void parse_filter_file(struct filter_list_struct *listp, const char *fname, |
1000 | uint32 mflags, int xflags) | |
c627d613 | 1001 | { |
5e7dbaca | 1002 | FILE *fp; |
3fac51e2 | 1003 | char line[BIGPATHBUFLEN]; |
7cd72c79 | 1004 | char *eob = line + sizeof line - 1; |
b6f06b8e | 1005 | int word_split = mflags & MATCHFLG_WORD_SPLIT; |
ccdff3eb | 1006 | |
5be7fa93 WD |
1007 | if (!fname || !*fname) |
1008 | return; | |
1009 | ||
5a016db9 WD |
1010 | if (*fname != '-' || fname[1] || am_server) { |
1011 | if (server_filter_list.head) { | |
1012 | strlcpy(line, fname, sizeof line); | |
1013 | clean_fname(line, 1); | |
1014 | if (check_filter(&server_filter_list, line, 0) < 0) | |
1015 | fp = NULL; | |
1016 | else | |
1017 | fp = fopen(line, "rb"); | |
1018 | } else | |
1019 | fp = fopen(fname, "rb"); | |
1020 | } else | |
5e7dbaca | 1021 | fp = stdin; |
bf39270e WD |
1022 | |
1023 | if (verbose > 2) { | |
fdc79501 | 1024 | rprintf(FINFO, "[%s] parse_filter_file(%s,%x,%x)%s\n", |
45c49b52 | 1025 | who_am_i(), fname, mflags, xflags, |
bf39270e WD |
1026 | fp ? "" : " [not found]"); |
1027 | } | |
1028 | ||
5e7dbaca | 1029 | if (!fp) { |
f8f72644 | 1030 | if (xflags & XFLG_FATAL_ERRORS) { |
a039749b | 1031 | rsyserr(FERROR, errno, |
6dfd07d0 | 1032 | "failed to open %sclude file %s", |
b6f06b8e | 1033 | mflags & MATCHFLG_INCLUDE ? "in" : "ex", |
45c49b52 | 1034 | fname); |
65417579 | 1035 | exit_cleanup(RERR_FILEIO); |
2b6b4d53 | 1036 | } |
5be7fa93 | 1037 | return; |
2b6b4d53 | 1038 | } |
6dfd07d0 WD |
1039 | dirbuf[dirbuf_len] = '\0'; |
1040 | ||
ccdff3eb | 1041 | while (1) { |
5e7dbaca | 1042 | char *s = line; |
619d21ff | 1043 | int ch, overflow = 0; |
ccdff3eb | 1044 | while (1) { |
5e7dbaca | 1045 | if ((ch = getc(fp)) == EOF) { |
61e16468 WD |
1046 | if (ferror(fp) && errno == EINTR) { |
1047 | clearerr(fp); | |
ccdff3eb | 1048 | continue; |
61e16468 | 1049 | } |
ccdff3eb WD |
1050 | break; |
1051 | } | |
40d38dc0 WD |
1052 | if (word_split && isspace(ch)) |
1053 | break; | |
ccdff3eb WD |
1054 | if (eol_nulls? !ch : (ch == '\n' || ch == '\r')) |
1055 | break; | |
1056 | if (s < eob) | |
1057 | *s++ = ch; | |
619d21ff WD |
1058 | else |
1059 | overflow = 1; | |
1060 | } | |
1061 | if (overflow) { | |
7842418b | 1062 | rprintf(FERROR, "discarding over-long filter: %s...\n", line); |
619d21ff | 1063 | s = line; |
ccdff3eb WD |
1064 | } |
1065 | *s = '\0'; | |
7f0feb4d WD |
1066 | /* Skip an empty token and (when line parsing) comments. */ |
1067 | if (*line && (word_split || (*line != ';' && *line != '#'))) | |
fdc79501 | 1068 | parse_rule(listp, line, mflags, xflags); |
5e7dbaca | 1069 | if (ch == EOF) |
ccdff3eb | 1070 | break; |
2b6b4d53 | 1071 | } |
5e7dbaca | 1072 | fclose(fp); |
c627d613 AT |
1073 | } |
1074 | ||
a261103c | 1075 | /* If the "for_xfer" flag is set, the prefix is made compatible with the |
fdc79501 WD |
1076 | * current protocol_version (if possible) or a NULL is returned (if not |
1077 | * possible). */ | |
a261103c | 1078 | char *get_rule_prefix(int match_flags, const char *pat, int for_xfer, |
fdc79501 | 1079 | unsigned int *plen_ptr) |
417b5999 WD |
1080 | { |
1081 | static char buf[MAX_RULE_PREFIX+1]; | |
1082 | char *op = buf; | |
2217b30a | 1083 | int legal_len = for_xfer && protocol_version < 29 ? 1 : MAX_RULE_PREFIX-1; |
417b5999 WD |
1084 | |
1085 | if (match_flags & MATCHFLG_PERDIR_MERGE) { | |
fdc79501 WD |
1086 | if (legal_len == 1) |
1087 | return NULL; | |
417b5999 | 1088 | *op++ = ':'; |
fdc79501 WD |
1089 | } else if (match_flags & MATCHFLG_INCLUDE) |
1090 | *op++ = '+'; | |
1091 | else if (legal_len != 1 | |
1092 | || ((*pat == '-' || *pat == '+') && pat[1] == ' ')) | |
1093 | *op++ = '-'; | |
1094 | else | |
1095 | legal_len = 0; | |
1096 | ||
2a28dd32 WD |
1097 | if (match_flags & MATCHFLG_NEGATE) |
1098 | *op++ = '!'; | |
fdc79501 WD |
1099 | if (match_flags & MATCHFLG_CVS_IGNORE) |
1100 | *op++ = 'C'; | |
1101 | else { | |
417b5999 WD |
1102 | if (match_flags & MATCHFLG_NO_INHERIT) |
1103 | *op++ = 'n'; | |
d09e800a WD |
1104 | if (match_flags & MATCHFLG_WORD_SPLIT) |
1105 | *op++ = 'w'; | |
417b5999 WD |
1106 | if (match_flags & MATCHFLG_NO_PREFIXES) { |
1107 | if (match_flags & MATCHFLG_INCLUDE) | |
1108 | *op++ = '+'; | |
1109 | else | |
1110 | *op++ = '-'; | |
1111 | } | |
417b5999 | 1112 | } |
46db1850 WD |
1113 | if (match_flags & MATCHFLG_EXCLUDE_SELF) |
1114 | *op++ = 'e'; | |
ed243f8c WD |
1115 | if (match_flags & MATCHFLG_SENDER_SIDE |
1116 | && (!for_xfer || protocol_version >= 29)) | |
1117 | *op++ = 's'; | |
1118 | if (match_flags & MATCHFLG_RECEIVER_SIDE | |
1119 | && (!for_xfer || protocol_version >= 29 | |
1120 | || (delete_excluded && am_sender))) | |
1121 | *op++ = 'r'; | |
ccdb23bb WD |
1122 | if (match_flags & MATCHFLG_PERISHABLE) { |
1123 | if (!for_xfer || protocol_version >= 30) | |
1124 | *op++ = 'p'; | |
1125 | else if (am_sender) | |
1126 | return NULL; | |
1127 | } | |
448797a1 WD |
1128 | if (op - buf > legal_len) |
1129 | return NULL; | |
2217b30a WD |
1130 | if (legal_len) |
1131 | *op++ = ' '; | |
417b5999 WD |
1132 | *op = '\0'; |
1133 | if (plen_ptr) | |
1134 | *plen_ptr = op - buf; | |
417b5999 WD |
1135 | return buf; |
1136 | } | |
c627d613 | 1137 | |
fdc79501 | 1138 | static void send_rules(int f_out, struct filter_list_struct *flp) |
c627d613 | 1139 | { |
ed243f8c | 1140 | struct filter_struct *ent, *prev = NULL; |
25cf8893 | 1141 | |
fdc79501 | 1142 | for (ent = flp->head; ent; ent = ent->next) { |
417b5999 | 1143 | unsigned int len, plen, dlen; |
ed243f8c | 1144 | int elide = 0; |
417b5999 | 1145 | char *p; |
2fb139c1 | 1146 | |
f1678790 WD |
1147 | /* Note we need to check delete_excluded here in addition to |
1148 | * the code in parse_rule_tok() because some rules may have | |
48ecccce WD |
1149 | * been added before we found the --delete-excluded option. |
1150 | * We must also elide any CVS merge-file rules to avoid a | |
1151 | * backward compatibility problem, and we elide any no-prefix | |
1152 | * merge files as an optimization (since they can only have | |
1153 | * include/exclude rules). */ | |
ed243f8c WD |
1154 | if (ent->match_flags & MATCHFLG_SENDER_SIDE) |
1155 | elide = am_sender ? 1 : -1; | |
1156 | if (ent->match_flags & MATCHFLG_RECEIVER_SIDE) | |
1157 | elide = elide ? 0 : am_sender ? -1 : 1; | |
97bf86f8 | 1158 | else if (delete_excluded && !elide |
48ecccce WD |
1159 | && (!(ent->match_flags & MATCHFLG_PERDIR_MERGE) |
1160 | || ent->match_flags & MATCHFLG_NO_PREFIXES)) | |
ed243f8c WD |
1161 | elide = am_sender ? 1 : -1; |
1162 | if (elide < 0) { | |
1163 | if (prev) | |
1164 | prev->next = ent->next; | |
1165 | else | |
1166 | flp->head = ent->next; | |
1167 | } else | |
1168 | prev = ent; | |
1169 | if (elide > 0) | |
1170 | continue; | |
fdc79501 WD |
1171 | if (ent->match_flags & MATCHFLG_CVS_IGNORE |
1172 | && !(ent->match_flags & MATCHFLG_MERGE_FILE)) { | |
98e47414 | 1173 | int f = am_sender || protocol_version < 29 ? f_out : -2; |
ed243f8c | 1174 | send_rules(f, &cvs_filter_list); |
98e47414 | 1175 | if (f == f_out) |
417b5999 | 1176 | continue; |
fdc79501 WD |
1177 | } |
1178 | p = get_rule_prefix(ent->match_flags, ent->pattern, 1, &plen); | |
1179 | if (!p) { | |
417b5999 | 1180 | rprintf(FERROR, |
fdc79501 | 1181 | "filter rules are too modern for remote rsync.\n"); |
caf8299e | 1182 | exit_cleanup(RERR_PROTOCOL); |
5f5be796 | 1183 | } |
ed243f8c WD |
1184 | if (f_out < 0) |
1185 | continue; | |
fdc79501 | 1186 | len = strlen(ent->pattern); |
417b5999 | 1187 | dlen = ent->match_flags & MATCHFLG_DIRECTORY ? 1 : 0; |
fdc79501 WD |
1188 | if (!(plen + len + dlen)) |
1189 | continue; | |
1190 | write_int(f_out, plen + len + dlen); | |
417b5999 | 1191 | if (plen) |
fdc79501 WD |
1192 | write_buf(f_out, p, plen); |
1193 | write_buf(f_out, ent->pattern, len); | |
417b5999 | 1194 | if (dlen) |
fdc79501 | 1195 | write_byte(f_out, '/'); |
0f2ac855 | 1196 | } |
ed243f8c | 1197 | flp->tail = prev; |
c627d613 AT |
1198 | } |
1199 | ||
fdc79501 WD |
1200 | /* This is only called by the client. */ |
1201 | void send_filter_list(int f_out) | |
1202 | { | |
d5782b52 WD |
1203 | int receiver_wants_list = prune_empty_dirs |
1204 | || (delete_mode && (!delete_excluded || protocol_version >= 29)); | |
448797a1 WD |
1205 | |
1206 | if (local_server || (am_sender && !receiver_wants_list)) | |
fdc79501 WD |
1207 | f_out = -1; |
1208 | if (cvs_exclude && am_sender) { | |
1209 | if (protocol_version >= 29) | |
1210 | parse_rule(&filter_list, ":C", 0, 0); | |
1211 | parse_rule(&filter_list, "-C", 0, 0); | |
1212 | } | |
c627d613 | 1213 | |
fdc79501 WD |
1214 | /* This is a complete hack - blame Rusty. FIXME! |
1215 | * Remove this hack when older rsyncs (below 2.6.4) are gone. */ | |
1216 | if (list_only == 1 && !recurse) | |
1217 | parse_rule(&filter_list, "/*/*", MATCHFLG_NO_PREFIXES, 0); | |
1218 | ||
ed243f8c WD |
1219 | send_rules(f_out, &filter_list); |
1220 | ||
1221 | if (f_out >= 0) | |
fdc79501 | 1222 | write_int(f_out, 0); |
fdc79501 WD |
1223 | |
1224 | if (cvs_exclude) { | |
1225 | if (!am_sender || protocol_version < 29) | |
1226 | parse_rule(&filter_list, ":C", 0, 0); | |
1227 | if (!am_sender) | |
1228 | parse_rule(&filter_list, "-C", 0, 0); | |
1229 | } | |
1230 | } | |
1231 | ||
1232 | /* This is only called by the server. */ | |
1233 | void recv_filter_list(int f_in) | |
c627d613 | 1234 | { |
3fac51e2 | 1235 | char line[BIGPATHBUFLEN]; |
fdc79501 | 1236 | int xflags = protocol_version >= 29 ? 0 : XFLG_OLD_PREFIXES; |
d5782b52 | 1237 | int receiver_wants_list = prune_empty_dirs |
e257c6c2 WD |
1238 | || (delete_mode |
1239 | && (!delete_excluded || protocol_version >= 29)); | |
fdc79501 WD |
1240 | unsigned int len; |
1241 | ||
448797a1 | 1242 | if (!local_server && (am_sender || receiver_wants_list)) { |
fdc79501 WD |
1243 | while ((len = read_int(f_in)) != 0) { |
1244 | if (len >= sizeof line) | |
a1f99493 | 1245 | overflow_exit("recv_rules"); |
fdc79501 WD |
1246 | read_sbuf(f_in, line, len); |
1247 | parse_rule(&filter_list, line, 0, xflags); | |
1248 | } | |
1249 | } | |
9dd891bb | 1250 | |
fdc79501 | 1251 | if (cvs_exclude) { |
1412da7c | 1252 | if (local_server || am_sender || protocol_version < 29) |
fdc79501 | 1253 | parse_rule(&filter_list, ":C", 0, 0); |
1412da7c | 1254 | if (local_server || am_sender) |
fdc79501 | 1255 | parse_rule(&filter_list, "-C", 0, 0); |
651443a7 | 1256 | } |
ed243f8c WD |
1257 | |
1258 | if (local_server) /* filter out any rules that aren't for us. */ | |
1259 | send_rules(-1, &filter_list); | |
651443a7 | 1260 | } |