Commit | Line | Data |
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0f78b815 WD |
1 | /* |
2 | * The filter include/exclude routines. | |
0f2ac855 | 3 | * |
0f78b815 WD |
4 | * Copyright (C) 1996-2001 Andrew Tridgell <tridge@samba.org> |
5 | * Copyright (C) 1996 Paul Mackerras | |
6 | * Copyright (C) 2002 Martin Pool | |
d3d07a5e | 7 | * Copyright (C) 2003-2008 Wayne Davison |
0f2ac855 | 8 | * |
07a874fd | 9 | * This program is free software; you can redistribute it and/or modify |
8e41b68e WD |
10 | * it under the terms of the GNU General Public License as published by |
11 | * the Free Software Foundation; either version 3 of the License, or | |
12 | * (at your option) any later version. | |
0f2ac855 | 13 | * |
07a874fd MP |
14 | * This program is distributed in the hope that it will be useful, |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
0f2ac855 | 18 | * |
e7c67065 | 19 | * You should have received a copy of the GNU General Public License along |
4fd842f9 | 20 | * with this program; if not, visit the http://fsf.org website. |
07a874fd | 21 | */ |
c627d613 | 22 | |
c627d613 AT |
23 | #include "rsync.h" |
24 | ||
25 | extern int verbose; | |
5a016db9 | 26 | extern int am_server; |
fdc79501 | 27 | extern int am_sender; |
40d38dc0 | 28 | extern int eol_nulls; |
6dfd07d0 | 29 | extern int io_error; |
1412da7c | 30 | extern int local_server; |
d5782b52 | 31 | extern int prune_empty_dirs; |
ccdb23bb | 32 | extern int ignore_perishable; |
fdc79501 WD |
33 | extern int delete_mode; |
34 | extern int delete_excluded; | |
35 | extern int cvs_exclude; | |
6dfd07d0 WD |
36 | extern int sanitize_paths; |
37 | extern int protocol_version; | |
bf39270e | 38 | extern int module_id; |
40d38dc0 WD |
39 | |
40 | extern char curr_dir[]; | |
6dfd07d0 WD |
41 | extern unsigned int curr_dir_len; |
42 | extern unsigned int module_dirlen; | |
c627d613 | 43 | |
7842418b | 44 | struct filter_list_struct filter_list = { 0, 0, "" }; |
c81a20fb WD |
45 | struct filter_list_struct cvs_filter_list = { 0, 0, " [global CVS]" }; |
46 | struct filter_list_struct server_filter_list = { 0, 0, " [daemon]" }; | |
c627d613 | 47 | |
6dfd07d0 | 48 | /* Need room enough for ":MODS " prefix plus some room to grow. */ |
7842418b | 49 | #define MAX_RULE_PREFIX (16) |
6dfd07d0 | 50 | |
d727f0ff | 51 | #define MODIFIERS_MERGE_FILE "-+Cenw" |
ccdb23bb WD |
52 | #define MODIFIERS_INCL_EXCL "/!Crsp" |
53 | #define MODIFIERS_HIDE_PROTECT "/!p" | |
b6f06b8e | 54 | |
7842418b | 55 | /* The dirbuf is set by push_local_filters() to the current subdirectory |
6dfd07d0 WD |
56 | * relative to curr_dir that is being processed. The path always has a |
57 | * trailing slash appended, and the variable dirbuf_len contains the length | |
58 | * of this path prefix. The path is always absolute. */ | |
59 | static char dirbuf[MAXPATHLEN+1]; | |
60 | static unsigned int dirbuf_len = 0; | |
61 | static int dirbuf_depth; | |
62 | ||
63 | /* This is True when we're scanning parent dirs for per-dir merge-files. */ | |
64 | static BOOL parent_dirscan = False; | |
65 | ||
66 | /* This array contains a list of all the currently active per-dir merge | |
67 | * files. This makes it easier to save the appropriate values when we | |
68 | * "push" down into each subdirectory. */ | |
7842418b | 69 | static struct filter_struct **mergelist_parents; |
6dfd07d0 WD |
70 | static int mergelist_cnt = 0; |
71 | static int mergelist_size = 0; | |
72 | ||
7842418b | 73 | /* Each filter_list_struct describes a singly-linked list by keeping track |
6dfd07d0 WD |
74 | * of both the head and tail pointers. The list is slightly unusual in that |
75 | * a parent-dir's content can be appended to the end of the local list in a | |
76 | * special way: the last item in the local list has its "next" pointer set | |
77 | * to point to the inherited list, but the local list's tail pointer points | |
78 | * at the end of the local list. Thus, if the local list is empty, the head | |
79 | * will be pointing at the inherited content but the tail will be NULL. To | |
80 | * help you visualize this, here are the possible list arrangements: | |
81 | * | |
82 | * Completely Empty Local Content Only | |
83 | * ================================== ==================================== | |
84 | * head -> NULL head -> Local1 -> Local2 -> NULL | |
85 | * tail -> NULL tail -------------^ | |
86 | * | |
87 | * Inherited Content Only Both Local and Inherited Content | |
88 | * ================================== ==================================== | |
89 | * head -> Parent1 -> Parent2 -> NULL head -> L1 -> L2 -> P1 -> P2 -> NULL | |
90 | * tail -> NULL tail ---------^ | |
91 | * | |
92 | * This means that anyone wanting to traverse the whole list to use it just | |
93 | * needs to start at the head and use the "next" pointers until it goes | |
94 | * NULL. To add new local content, we insert the item after the tail item | |
95 | * and update the tail (obviously, if "tail" was NULL, we insert it at the | |
96 | * head). To clear the local list, WE MUST NOT FREE THE INHERITED CONTENT | |
97 | * because it is shared between the current list and our parent list(s). | |
98 | * The easiest way to handle this is to simply truncate the list after the | |
99 | * tail item and then free the local list from the head. When inheriting | |
7842418b | 100 | * the list for a new local dir, we just save off the filter_list_struct |
6dfd07d0 WD |
101 | * values (so we can pop back to them later) and set the tail to NULL. |
102 | */ | |
103 | ||
7842418b | 104 | static void free_filter(struct filter_struct *ex) |
6dfd07d0 WD |
105 | { |
106 | if (ex->match_flags & MATCHFLG_PERDIR_MERGE) { | |
107 | free(ex->u.mergelist->debug_type); | |
108 | free(ex->u.mergelist); | |
109 | mergelist_cnt--; | |
110 | } | |
111 | free(ex->pattern); | |
112 | free(ex); | |
113 | } | |
114 | ||
7842418b | 115 | /* Build a filter structure given a filter pattern. The value in "pat" |
6dfd07d0 | 116 | * is not null-terminated. */ |
fdc79501 WD |
117 | static void add_rule(struct filter_list_struct *listp, const char *pat, |
118 | unsigned int pat_len, uint32 mflags, int xflags) | |
c627d613 | 119 | { |
7842418b | 120 | struct filter_struct *ret; |
f8f72644 | 121 | const char *cp; |
5e972dcf | 122 | unsigned int ex_len; |
c627d613 | 123 | |
6dfd07d0 | 124 | if (verbose > 2) { |
fdc79501 WD |
125 | rprintf(FINFO, "[%s] add_rule(%s%.*s%s)%s\n", |
126 | who_am_i(), get_rule_prefix(mflags, pat, 0, NULL), | |
127 | (int)pat_len, pat, | |
128 | (mflags & MATCHFLG_DIRECTORY) ? "/" : "", | |
6dfd07d0 WD |
129 | listp->debug_type); |
130 | } | |
131 | ||
4fc8140a | 132 | /* These flags also indicate that we're reading a list that |
6d7b3d52 | 133 | * needs to be filtered now, not post-filtered later. */ |
4fc8140a | 134 | if (xflags & (XFLG_ANCHORED2ABS|XFLG_ABS_IF_SLASH)) { |
6d7b3d52 WD |
135 | uint32 mf = mflags & (MATCHFLG_RECEIVER_SIDE|MATCHFLG_SENDER_SIDE); |
136 | if (am_sender) { | |
137 | if (mf == MATCHFLG_RECEIVER_SIDE) | |
138 | return; | |
139 | } else { | |
140 | if (mf == MATCHFLG_SENDER_SIDE) | |
141 | return; | |
142 | } | |
143 | } | |
144 | ||
7e4b6b7b | 145 | if (!(ret = new0(struct filter_struct))) |
fdc79501 | 146 | out_of_memory("add_rule"); |
2b6b4d53 | 147 | |
4fc8140a WD |
148 | if (!(mflags & (MATCHFLG_ABS_PATH | MATCHFLG_MERGE_FILE)) |
149 | && ((xflags & (XFLG_ANCHORED2ABS|XFLG_ABS_IF_SLASH) && *pat == '/') | |
150 | || (xflags & XFLG_ABS_IF_SLASH && strchr(pat, '/') != NULL))) { | |
bf39270e | 151 | mflags |= MATCHFLG_ABS_PATH; |
4fc8140a WD |
152 | if (*pat == '/') |
153 | ex_len = dirbuf_len - module_dirlen - 1; | |
154 | else | |
155 | ex_len = 0; | |
6dfd07d0 | 156 | } else |
f8f72644 | 157 | ex_len = 0; |
fdc79501 WD |
158 | if (!(ret->pattern = new_array(char, ex_len + pat_len + 1))) |
159 | out_of_memory("add_rule"); | |
f8f72644 | 160 | if (ex_len) |
6dfd07d0 | 161 | memcpy(ret->pattern, dirbuf + module_dirlen, ex_len); |
5e972dcf | 162 | strlcpy(ret->pattern + ex_len, pat, pat_len + 1); |
f8f72644 WD |
163 | pat_len += ex_len; |
164 | ||
165 | if (strpbrk(ret->pattern, "*[?")) { | |
5e972dcf | 166 | mflags |= MATCHFLG_WILD; |
96d3590a | 167 | if ((cp = strstr(ret->pattern, "**")) != NULL) { |
5e972dcf | 168 | mflags |= MATCHFLG_WILD2; |
170381c0 | 169 | /* If the pattern starts with **, note that. */ |
96d3590a | 170 | if (cp == ret->pattern) |
5e972dcf | 171 | mflags |= MATCHFLG_WILD2_PREFIX; |
e5daa273 WD |
172 | /* If the pattern ends with ***, note that. */ |
173 | if (pat_len >= 3 | |
174 | && ret->pattern[pat_len-3] == '*' | |
175 | && ret->pattern[pat_len-2] == '*' | |
176 | && ret->pattern[pat_len-1] == '*') | |
177 | mflags |= MATCHFLG_WILD3_SUFFIX; | |
0f2ac855 | 178 | } |
2bca43f6 | 179 | } |
c627d613 | 180 | |
5be7fa93 WD |
181 | if (pat_len > 1 && ret->pattern[pat_len-1] == '/') { |
182 | ret->pattern[pat_len-1] = 0; | |
5e972dcf | 183 | mflags |= MATCHFLG_DIRECTORY; |
2b6b4d53 | 184 | } |
c627d613 | 185 | |
6dfd07d0 | 186 | if (mflags & MATCHFLG_PERDIR_MERGE) { |
7842418b | 187 | struct filter_list_struct *lp; |
6dfd07d0 WD |
188 | unsigned int len; |
189 | int i; | |
190 | ||
191 | if ((cp = strrchr(ret->pattern, '/')) != NULL) | |
192 | cp++; | |
193 | else | |
194 | cp = ret->pattern; | |
195 | ||
196 | /* If the local merge file was already mentioned, don't | |
197 | * add it again. */ | |
198 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b | 199 | struct filter_struct *ex = mergelist_parents[i]; |
6dfd07d0 WD |
200 | const char *s = strrchr(ex->pattern, '/'); |
201 | if (s) | |
bf39270e | 202 | s++; |
6dfd07d0 | 203 | else |
bf39270e | 204 | s = ex->pattern; |
6dfd07d0 WD |
205 | len = strlen(s); |
206 | if (len == pat_len - (cp - ret->pattern) | |
207 | && memcmp(s, cp, len) == 0) { | |
7842418b | 208 | free_filter(ret); |
6dfd07d0 WD |
209 | return; |
210 | } | |
211 | } | |
212 | ||
7842418b | 213 | if (!(lp = new_array(struct filter_list_struct, 1))) |
fdc79501 | 214 | out_of_memory("add_rule"); |
6dfd07d0 | 215 | lp->head = lp->tail = NULL; |
fdc79501 WD |
216 | if (asprintf(&lp->debug_type, " [per-dir %s]", cp) < 0) |
217 | out_of_memory("add_rule"); | |
6dfd07d0 WD |
218 | ret->u.mergelist = lp; |
219 | ||
220 | if (mergelist_cnt == mergelist_size) { | |
221 | mergelist_size += 5; | |
222 | mergelist_parents = realloc_array(mergelist_parents, | |
7842418b | 223 | struct filter_struct *, |
6dfd07d0 WD |
224 | mergelist_size); |
225 | if (!mergelist_parents) | |
fdc79501 | 226 | out_of_memory("add_rule"); |
6dfd07d0 WD |
227 | } |
228 | mergelist_parents[mergelist_cnt++] = ret; | |
229 | } else { | |
230 | for (cp = ret->pattern; (cp = strchr(cp, '/')) != NULL; cp++) | |
231 | ret->u.slash_cnt++; | |
232 | } | |
0944563e | 233 | |
c1b29492 WD |
234 | ret->match_flags = mflags; |
235 | ||
6dfd07d0 WD |
236 | if (!listp->tail) { |
237 | ret->next = listp->head; | |
b2aa573b | 238 | listp->head = listp->tail = ret; |
6dfd07d0 WD |
239 | } else { |
240 | ret->next = listp->tail->next; | |
b2aa573b WD |
241 | listp->tail->next = ret; |
242 | listp->tail = ret; | |
243 | } | |
2b6b4d53 AT |
244 | } |
245 | ||
7842418b | 246 | static void clear_filter_list(struct filter_list_struct *listp) |
2b6b4d53 | 247 | { |
6dfd07d0 | 248 | if (listp->tail) { |
7842418b | 249 | struct filter_struct *ent, *next; |
6dfd07d0 WD |
250 | /* Truncate any inherited items from the local list. */ |
251 | listp->tail->next = NULL; | |
252 | /* Now free everything that is left. */ | |
253 | for (ent = listp->head; ent; ent = next) { | |
254 | next = ent->next; | |
7842418b | 255 | free_filter(ent); |
6dfd07d0 WD |
256 | } |
257 | } | |
258 | ||
259 | listp->head = listp->tail = NULL; | |
2b6b4d53 | 260 | } |
c627d613 | 261 | |
6dfd07d0 WD |
262 | /* This returns an expanded (absolute) filename for the merge-file name if |
263 | * the name has any slashes in it OR if the parent_dirscan var is True; | |
264 | * otherwise it returns the original merge_file name. If the len_ptr value | |
265 | * is non-NULL the merge_file name is limited by the referenced length | |
266 | * value and will be updated with the length of the resulting name. We | |
267 | * always return a name that is null terminated, even if the merge_file | |
268 | * name was not. */ | |
269 | static char *parse_merge_name(const char *merge_file, unsigned int *len_ptr, | |
270 | unsigned int prefix_skip) | |
5be7fa93 | 271 | { |
6dfd07d0 WD |
272 | static char buf[MAXPATHLEN]; |
273 | char *fn, tmpbuf[MAXPATHLEN]; | |
274 | unsigned int fn_len; | |
275 | ||
276 | if (!parent_dirscan && *merge_file != '/') { | |
277 | /* Return the name unchanged it doesn't have any slashes. */ | |
278 | if (len_ptr) { | |
279 | const char *p = merge_file + *len_ptr; | |
280 | while (--p > merge_file && *p != '/') {} | |
281 | if (p == merge_file) { | |
282 | strlcpy(buf, merge_file, *len_ptr + 1); | |
283 | return buf; | |
284 | } | |
285 | } else if (strchr(merge_file, '/') == NULL) | |
286 | return (char *)merge_file; | |
287 | } | |
5be7fa93 | 288 | |
6dfd07d0 WD |
289 | fn = *merge_file == '/' ? buf : tmpbuf; |
290 | if (sanitize_paths) { | |
291 | const char *r = prefix_skip ? "/" : NULL; | |
292 | /* null-terminate the name if it isn't already */ | |
293 | if (len_ptr && merge_file[*len_ptr]) { | |
294 | char *to = fn == buf ? tmpbuf : buf; | |
295 | strlcpy(to, merge_file, *len_ptr + 1); | |
296 | merge_file = to; | |
297 | } | |
29bca53f | 298 | if (!sanitize_path(fn, merge_file, r, dirbuf_depth)) { |
6dfd07d0 | 299 | rprintf(FERROR, "merge-file name overflows: %s\n", |
45c49b52 | 300 | merge_file); |
6dfd07d0 WD |
301 | return NULL; |
302 | } | |
798cde47 | 303 | fn_len = strlen(fn); |
6dfd07d0 WD |
304 | } else { |
305 | strlcpy(fn, merge_file, len_ptr ? *len_ptr + 1 : MAXPATHLEN); | |
b58bfb2f | 306 | fn_len = clean_fname(fn, CFN_COLLAPSE_DOT_DOT_DIRS); |
b2aa573b | 307 | } |
0f78b815 | 308 | |
798cde47 WD |
309 | /* If the name isn't in buf yet, it's wasn't absolute. */ |
310 | if (fn != buf) { | |
311 | if (dirbuf_len + fn_len >= MAXPATHLEN) { | |
312 | rprintf(FERROR, "merge-file name overflows: %s\n", fn); | |
313 | return NULL; | |
314 | } | |
315 | memcpy(buf, dirbuf + prefix_skip, dirbuf_len - prefix_skip); | |
316 | memcpy(buf + dirbuf_len - prefix_skip, fn, fn_len + 1); | |
b58bfb2f | 317 | fn_len = clean_fname(buf, CFN_COLLAPSE_DOT_DOT_DIRS); |
6dfd07d0 | 318 | } |
6dfd07d0 | 319 | |
6dfd07d0 WD |
320 | if (len_ptr) |
321 | *len_ptr = fn_len; | |
322 | return buf; | |
323 | } | |
5be7fa93 | 324 | |
6dfd07d0 | 325 | /* Sets the dirbuf and dirbuf_len values. */ |
7842418b | 326 | void set_filter_dir(const char *dir, unsigned int dirlen) |
6dfd07d0 WD |
327 | { |
328 | unsigned int len; | |
329 | if (*dir != '/') { | |
330 | memcpy(dirbuf, curr_dir, curr_dir_len); | |
331 | dirbuf[curr_dir_len] = '/'; | |
332 | len = curr_dir_len + 1; | |
333 | if (len + dirlen >= MAXPATHLEN) | |
334 | dirlen = 0; | |
335 | } else | |
336 | len = 0; | |
337 | memcpy(dirbuf + len, dir, dirlen); | |
338 | dirbuf[dirlen + len] = '\0'; | |
b58bfb2f | 339 | dirbuf_len = clean_fname(dirbuf, CFN_COLLAPSE_DOT_DOT_DIRS); |
6dfd07d0 WD |
340 | if (dirbuf_len > 1 && dirbuf[dirbuf_len-1] == '.' |
341 | && dirbuf[dirbuf_len-2] == '/') | |
342 | dirbuf_len -= 2; | |
343 | if (dirbuf_len != 1) | |
344 | dirbuf[dirbuf_len++] = '/'; | |
345 | dirbuf[dirbuf_len] = '\0'; | |
346 | if (sanitize_paths) | |
347 | dirbuf_depth = count_dir_elements(dirbuf + module_dirlen); | |
348 | } | |
349 | ||
350 | /* This routine takes a per-dir merge-file entry and finishes its setup. | |
351 | * If the name has a path portion then we check to see if it refers to a | |
352 | * parent directory of the first transfer dir. If it does, we scan all the | |
353 | * dirs from that point through the parent dir of the transfer dir looking | |
354 | * for the per-dir merge-file in each one. */ | |
7842418b | 355 | static BOOL setup_merge_file(struct filter_struct *ex, |
b6f06b8e | 356 | struct filter_list_struct *lp) |
6dfd07d0 WD |
357 | { |
358 | char buf[MAXPATHLEN]; | |
359 | char *x, *y, *pat = ex->pattern; | |
360 | unsigned int len; | |
361 | ||
362 | if (!(x = parse_merge_name(pat, NULL, 0)) || *x != '/') | |
363 | return 0; | |
364 | ||
365 | y = strrchr(x, '/'); | |
366 | *y = '\0'; | |
367 | ex->pattern = strdup(y+1); | |
368 | if (!*x) | |
369 | x = "/"; | |
370 | if (*x == '/') | |
371 | strlcpy(buf, x, MAXPATHLEN); | |
372 | else | |
373 | pathjoin(buf, MAXPATHLEN, dirbuf, x); | |
374 | ||
b58bfb2f | 375 | len = clean_fname(buf, CFN_COLLAPSE_DOT_DOT_DIRS); |
6dfd07d0 WD |
376 | if (len != 1 && len < MAXPATHLEN-1) { |
377 | buf[len++] = '/'; | |
378 | buf[len] = '\0'; | |
379 | } | |
380 | /* This ensures that the specified dir is a parent of the transfer. */ | |
381 | for (x = buf, y = dirbuf; *x && *x == *y; x++, y++) {} | |
382 | if (*x) | |
383 | y += strlen(y); /* nope -- skip the scan */ | |
384 | ||
385 | parent_dirscan = True; | |
386 | while (*y) { | |
387 | char save[MAXPATHLEN]; | |
388 | strlcpy(save, y, MAXPATHLEN); | |
389 | *y = '\0'; | |
390 | dirbuf_len = y - dirbuf; | |
391 | strlcpy(x, ex->pattern, MAXPATHLEN - (x - buf)); | |
fdc79501 | 392 | parse_filter_file(lp, buf, ex->match_flags, XFLG_ANCHORED2ABS); |
6dfd07d0 WD |
393 | if (ex->match_flags & MATCHFLG_NO_INHERIT) |
394 | lp->head = NULL; | |
395 | lp->tail = NULL; | |
396 | strlcpy(y, save, MAXPATHLEN); | |
397 | while ((*x++ = *y++) != '/') {} | |
398 | } | |
399 | parent_dirscan = False; | |
400 | free(pat); | |
401 | return 1; | |
402 | } | |
403 | ||
404 | /* Each time rsync changes to a new directory it call this function to | |
405 | * handle all the per-dir merge-files. The "dir" value is the current path | |
406 | * relative to curr_dir (which might not be null-terminated). We copy it | |
407 | * into dirbuf so that we can easily append a file name on the end. */ | |
7842418b | 408 | void *push_local_filters(const char *dir, unsigned int dirlen) |
6dfd07d0 | 409 | { |
7842418b | 410 | struct filter_list_struct *ap, *push; |
6dfd07d0 WD |
411 | int i; |
412 | ||
7842418b | 413 | set_filter_dir(dir, dirlen); |
6dfd07d0 | 414 | |
a2b371cd WD |
415 | if (!mergelist_cnt) |
416 | return NULL; | |
417 | ||
7842418b | 418 | push = new_array(struct filter_list_struct, mergelist_cnt); |
6dfd07d0 | 419 | if (!push) |
7842418b | 420 | out_of_memory("push_local_filters"); |
6dfd07d0 WD |
421 | |
422 | for (i = 0, ap = push; i < mergelist_cnt; i++) { | |
423 | memcpy(ap++, mergelist_parents[i]->u.mergelist, | |
7842418b | 424 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
425 | } |
426 | ||
fdc79501 | 427 | /* Note: parse_filter_file() might increase mergelist_cnt, so keep |
6dfd07d0 WD |
428 | * this loop separate from the above loop. */ |
429 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b WD |
430 | struct filter_struct *ex = mergelist_parents[i]; |
431 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
432 | |
433 | if (verbose > 2) { | |
7842418b | 434 | rprintf(FINFO, "[%s] pushing filter list%s\n", |
6dfd07d0 WD |
435 | who_am_i(), lp->debug_type); |
436 | } | |
437 | ||
438 | lp->tail = NULL; /* Switch any local rules to inherited. */ | |
439 | if (ex->match_flags & MATCHFLG_NO_INHERIT) | |
440 | lp->head = NULL; | |
6dfd07d0 WD |
441 | |
442 | if (ex->match_flags & MATCHFLG_FINISH_SETUP) { | |
443 | ex->match_flags &= ~MATCHFLG_FINISH_SETUP; | |
b6f06b8e | 444 | if (setup_merge_file(ex, lp)) |
7842418b | 445 | set_filter_dir(dir, dirlen); |
6dfd07d0 WD |
446 | } |
447 | ||
448 | if (strlcpy(dirbuf + dirbuf_len, ex->pattern, | |
b6f06b8e | 449 | MAXPATHLEN - dirbuf_len) < MAXPATHLEN - dirbuf_len) { |
fdc79501 WD |
450 | parse_filter_file(lp, dirbuf, ex->match_flags, |
451 | XFLG_ANCHORED2ABS); | |
b6f06b8e | 452 | } else { |
6dfd07d0 WD |
453 | io_error |= IOERR_GENERAL; |
454 | rprintf(FINFO, | |
7842418b | 455 | "cannot add local filter rules in long-named directory: %s\n", |
6dfd07d0 WD |
456 | full_fname(dirbuf)); |
457 | } | |
458 | dirbuf[dirbuf_len] = '\0'; | |
459 | } | |
460 | ||
461 | return (void*)push; | |
462 | } | |
463 | ||
7842418b | 464 | void pop_local_filters(void *mem) |
6dfd07d0 | 465 | { |
7842418b | 466 | struct filter_list_struct *ap, *pop = (struct filter_list_struct*)mem; |
6dfd07d0 WD |
467 | int i; |
468 | ||
469 | for (i = mergelist_cnt; i-- > 0; ) { | |
7842418b WD |
470 | struct filter_struct *ex = mergelist_parents[i]; |
471 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
472 | |
473 | if (verbose > 2) { | |
7842418b | 474 | rprintf(FINFO, "[%s] popping filter list%s\n", |
6dfd07d0 WD |
475 | who_am_i(), lp->debug_type); |
476 | } | |
477 | ||
7842418b | 478 | clear_filter_list(lp); |
6dfd07d0 WD |
479 | } |
480 | ||
a2b371cd WD |
481 | if (!pop) |
482 | return; | |
483 | ||
6dfd07d0 WD |
484 | for (i = 0, ap = pop; i < mergelist_cnt; i++) { |
485 | memcpy(mergelist_parents[i]->u.mergelist, ap++, | |
7842418b | 486 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
487 | } |
488 | ||
489 | free(pop); | |
5be7fa93 WD |
490 | } |
491 | ||
fe04532a WD |
492 | void change_local_filter_dir(const char *dname, int dlen, int dir_depth) |
493 | { | |
7fa60281 | 494 | static int cur_depth = -1; |
fe04532a WD |
495 | static void *filt_array[MAXPATHLEN/2+1]; |
496 | ||
497 | if (!dname) { | |
7fa60281 WD |
498 | for ( ; cur_depth >= 0; cur_depth--) { |
499 | if (filt_array[cur_depth]) { | |
500 | pop_local_filters(filt_array[cur_depth]); | |
501 | filt_array[cur_depth] = NULL; | |
502 | } | |
503 | } | |
fe04532a WD |
504 | return; |
505 | } | |
506 | ||
507 | assert(dir_depth < MAXPATHLEN/2+1); | |
508 | ||
7fa60281 WD |
509 | for ( ; cur_depth >= dir_depth; cur_depth--) { |
510 | if (filt_array[cur_depth]) { | |
511 | pop_local_filters(filt_array[cur_depth]); | |
512 | filt_array[cur_depth] = NULL; | |
513 | } | |
514 | } | |
fe04532a | 515 | |
7fa60281 | 516 | cur_depth = dir_depth; |
fe04532a WD |
517 | filt_array[cur_depth] = push_local_filters(dname, dlen); |
518 | } | |
519 | ||
ffe8feb2 | 520 | static int rule_matches(const char *fname, struct filter_struct *ex, int name_is_dir) |
2b6b4d53 | 521 | { |
e5daa273 | 522 | int slash_handling, str_cnt = 0, anchored_match = 0; |
f2ae9e85 | 523 | int ret_match = ex->match_flags & MATCHFLG_NEGATE ? 0 : 1; |
e5daa273 WD |
524 | char *p, *pattern = ex->pattern; |
525 | const char *strings[16]; /* more than enough */ | |
ffe8feb2 | 526 | const char *name = fname + (*fname == '/'); |
2b6b4d53 | 527 | |
9f186578 WD |
528 | if (!*name) |
529 | return 0; | |
530 | ||
6dfd07d0 | 531 | if (!ex->u.slash_cnt && !(ex->match_flags & MATCHFLG_WILD2)) { |
770de899 WD |
532 | /* If the pattern does not have any slashes AND it does |
533 | * not have a "**" (which could match a slash), then we | |
534 | * just match the name portion of the path. */ | |
5be7fa93 WD |
535 | if ((p = strrchr(name,'/')) != NULL) |
536 | name = p+1; | |
c291d057 | 537 | } else if (ex->match_flags & MATCHFLG_ABS_PATH && *fname != '/' |
6dfd07d0 | 538 | && curr_dir_len > module_dirlen + 1) { |
770de899 WD |
539 | /* If we're matching against an absolute-path pattern, |
540 | * we need to prepend our full path info. */ | |
e5daa273 WD |
541 | strings[str_cnt++] = curr_dir + module_dirlen + 1; |
542 | strings[str_cnt++] = "/"; | |
c291d057 | 543 | } else if (ex->match_flags & MATCHFLG_WILD2_PREFIX && *fname != '/') { |
e5daa273 WD |
544 | /* Allow "**"+"/" to match at the start of the string. */ |
545 | strings[str_cnt++] = "/"; | |
5be7fa93 | 546 | } |
e5daa273 WD |
547 | strings[str_cnt++] = name; |
548 | if (name_is_dir) { | |
549 | /* Allow a trailing "/"+"***" to match the directory. */ | |
550 | if (ex->match_flags & MATCHFLG_WILD3_SUFFIX) | |
551 | strings[str_cnt++] = "/"; | |
552 | } else if (ex->match_flags & MATCHFLG_DIRECTORY) | |
f2ae9e85 | 553 | return !ret_match; |
e5daa273 | 554 | strings[str_cnt] = NULL; |
2b6b4d53 | 555 | |
170381c0 | 556 | if (*pattern == '/') { |
770de899 | 557 | anchored_match = 1; |
2b6b4d53 AT |
558 | pattern++; |
559 | } | |
560 | ||
e5daa273 WD |
561 | if (!anchored_match && ex->u.slash_cnt |
562 | && !(ex->match_flags & MATCHFLG_WILD2)) { | |
170381c0 WD |
563 | /* A non-anchored match with an infix slash and no "**" |
564 | * needs to match the last slash_cnt+1 name elements. */ | |
e5daa273 WD |
565 | slash_handling = ex->u.slash_cnt + 1; |
566 | } else if (!anchored_match && !(ex->match_flags & MATCHFLG_WILD2_PREFIX) | |
567 | && ex->match_flags & MATCHFLG_WILD2) { | |
568 | /* A non-anchored match with an infix or trailing "**" (but not | |
569 | * a prefixed "**") needs to try matching after every slash. */ | |
570 | slash_handling = -1; | |
571 | } else { | |
572 | /* The pattern matches only at the start of the path or name. */ | |
573 | slash_handling = 0; | |
574 | } | |
575 | ||
576 | if (ex->match_flags & MATCHFLG_WILD) { | |
577 | if (wildmatch_array(pattern, strings, slash_handling)) | |
578 | return ret_match; | |
579 | } else if (str_cnt > 1) { | |
580 | if (litmatch_array(pattern, strings, slash_handling)) | |
f2ae9e85 | 581 | return ret_match; |
770de899 | 582 | } else if (anchored_match) { |
48ecccce | 583 | if (strcmp(name, pattern) == 0) |
f2ae9e85 | 584 | return ret_match; |
2b6b4d53 AT |
585 | } else { |
586 | int l1 = strlen(name); | |
ea2111d1 | 587 | int l2 = strlen(pattern); |
0f2ac855 | 588 | if (l2 <= l1 && |
ea2111d1 | 589 | strcmp(name+(l1-l2),pattern) == 0 && |
170381c0 | 590 | (l1==l2 || name[l1-(l2+1)] == '/')) { |
f2ae9e85 | 591 | return ret_match; |
c36cd317 | 592 | } |
2b6b4d53 AT |
593 | } |
594 | ||
f2ae9e85 | 595 | return !ret_match; |
c627d613 AT |
596 | } |
597 | ||
598 | ||
7842418b WD |
599 | static void report_filter_result(char const *name, |
600 | struct filter_struct const *ent, | |
601 | int name_is_dir, const char *type) | |
d567322f | 602 | { |
0f2ac855 | 603 | /* If a trailing slash is present to match only directories, |
fdc79501 | 604 | * then it is stripped out by add_rule(). So as a special |
0f2ac855 WD |
605 | * case we add it back in here. */ |
606 | ||
ea847c62 | 607 | if (verbose >= 2) { |
d5782b52 WD |
608 | static char *actions[2][2] |
609 | = { {"show", "hid"}, {"risk", "protect"} }; | |
610 | const char *w = who_am_i(); | |
611 | rprintf(FINFO, "[%s] %sing %s %s because of pattern %s%s%s\n", | |
612 | w, actions[*w!='s'][!(ent->match_flags&MATCHFLG_INCLUDE)], | |
613 | name_is_dir ? "directory" : "file", name, ent->pattern, | |
614 | ent->match_flags & MATCHFLG_DIRECTORY ? "/" : "", type); | |
ea847c62 | 615 | } |
d567322f MP |
616 | } |
617 | ||
618 | ||
619 | /* | |
a6536635 WD |
620 | * Return -1 if file "name" is defined to be excluded by the specified |
621 | * exclude list, 1 if it is included, and 0 if it was not matched. | |
d567322f | 622 | */ |
ffe8feb2 | 623 | int check_filter(struct filter_list_struct *listp, const char *name, int name_is_dir) |
c627d613 | 624 | { |
7842418b | 625 | struct filter_struct *ent; |
c627d613 | 626 | |
b2aa573b | 627 | for (ent = listp->head; ent; ent = ent->next) { |
ccdb23bb WD |
628 | if (ignore_perishable && ent->match_flags & MATCHFLG_PERISHABLE) |
629 | continue; | |
6dfd07d0 | 630 | if (ent->match_flags & MATCHFLG_PERDIR_MERGE) { |
7842418b WD |
631 | int rc = check_filter(ent->u.mergelist, name, |
632 | name_is_dir); | |
6dfd07d0 WD |
633 | if (rc) |
634 | return rc; | |
635 | continue; | |
636 | } | |
fdc79501 WD |
637 | if (ent->match_flags & MATCHFLG_CVS_IGNORE) { |
638 | int rc = check_filter(&cvs_filter_list, name, | |
639 | name_is_dir); | |
640 | if (rc) | |
641 | return rc; | |
642 | continue; | |
643 | } | |
7842418b WD |
644 | if (rule_matches(name, ent, name_is_dir)) { |
645 | report_filter_result(name, ent, name_is_dir, | |
67340e95 | 646 | listp->debug_type); |
5e972dcf | 647 | return ent->match_flags & MATCHFLG_INCLUDE ? 1 : -1; |
0f2ac855 | 648 | } |
2b6b4d53 | 649 | } |
c627d613 | 650 | |
2b6b4d53 | 651 | return 0; |
c627d613 AT |
652 | } |
653 | ||
345e0988 | 654 | #define RULE_STRCMP(s,r) rule_strcmp((s), (r), sizeof (r) - 1) |
a1ac8edd | 655 | |
4adbb5f2 | 656 | static const uchar *rule_strcmp(const uchar *str, const char *rule, int rule_len) |
a1ac8edd | 657 | { |
4adbb5f2 | 658 | if (strncmp((char*)str, rule, rule_len) != 0) |
a1ac8edd WD |
659 | return NULL; |
660 | if (isspace(str[rule_len]) || str[rule_len] == '_' || !str[rule_len]) | |
661 | return str + rule_len - 1; | |
662 | if (str[rule_len] == ',') | |
663 | return str + rule_len; | |
664 | return NULL; | |
665 | } | |
c627d613 | 666 | |
f8f72644 WD |
667 | /* Get the next include/exclude arg from the string. The token will not |
668 | * be '\0' terminated, so use the returned length to limit the string. | |
669 | * Also, be sure to add this length to the returned pointer before passing | |
e425fbe8 | 670 | * it back to ask for the next token. This routine parses the "!" (list- |
b6f06b8e WD |
671 | * clearing) token and (depending on the mflags) the various prefixes. |
672 | * The *mflags_ptr value will be set on exit to the new MATCHFLG_* bits | |
673 | * for the current token. */ | |
fdc79501 WD |
674 | static const char *parse_rule_tok(const char *p, uint32 mflags, int xflags, |
675 | unsigned int *len_ptr, uint32 *mflags_ptr) | |
f8f72644 | 676 | { |
fdc79501 WD |
677 | const uchar *s = (const uchar *)p; |
678 | uint32 new_mflags; | |
679 | unsigned int len; | |
f8f72644 | 680 | |
b6f06b8e | 681 | if (mflags & MATCHFLG_WORD_SPLIT) { |
96d3590a WD |
682 | /* Skip over any initial whitespace. */ |
683 | while (isspace(*s)) | |
f8f72644 | 684 | s++; |
6dfd07d0 | 685 | /* Update to point to real start of rule. */ |
abca4eba | 686 | p = (const char *)s; |
f8f72644 | 687 | } |
6dfd07d0 WD |
688 | if (!*s) |
689 | return NULL; | |
690 | ||
b6f06b8e WD |
691 | new_mflags = mflags & MATCHFLGS_FROM_CONTAINER; |
692 | ||
693 | /* Figure out what kind of a filter rule "s" is pointing at. Note | |
694 | * that if MATCHFLG_NO_PREFIXES is set, the rule is either an include | |
695 | * or an exclude based on the inheritance of the MATCHFLG_INCLUDE | |
696 | * flag (above). XFLG_OLD_PREFIXES indicates a compatibility mode | |
697 | * for old include/exclude patterns where just "+ " and "- " are | |
698 | * allowed as optional prefixes. */ | |
699 | if (mflags & MATCHFLG_NO_PREFIXES) { | |
a1ac8edd | 700 | if (*s == '!' && mflags & MATCHFLG_CVS_IGNORE) |
b6f06b8e WD |
701 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
702 | } else if (xflags & XFLG_OLD_PREFIXES) { | |
703 | if (*s == '-' && s[1] == ' ') { | |
704 | new_mflags &= ~MATCHFLG_INCLUDE; | |
705 | s += 2; | |
706 | } else if (*s == '+' && s[1] == ' ') { | |
707 | new_mflags |= MATCHFLG_INCLUDE; | |
708 | s += 2; | |
664cf327 | 709 | } else if (*s == '!') |
b6f06b8e WD |
710 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
711 | } else { | |
a1ac8edd | 712 | char ch = 0, *mods = ""; |
6dfd07d0 | 713 | switch (*s) { |
a1ac8edd | 714 | case 'c': |
345e0988 | 715 | if ((s = RULE_STRCMP(s, "clear")) != NULL) |
a1ac8edd WD |
716 | ch = '!'; |
717 | break; | |
718 | case 'd': | |
345e0988 | 719 | if ((s = RULE_STRCMP(s, "dir-merge")) != NULL) |
a1ac8edd WD |
720 | ch = ':'; |
721 | break; | |
722 | case 'e': | |
345e0988 | 723 | if ((s = RULE_STRCMP(s, "exclude")) != NULL) |
a1ac8edd WD |
724 | ch = '-'; |
725 | break; | |
ed243f8c WD |
726 | case 'h': |
727 | if ((s = RULE_STRCMP(s, "hide")) != NULL) | |
728 | ch = 'H'; | |
729 | break; | |
a1ac8edd | 730 | case 'i': |
345e0988 | 731 | if ((s = RULE_STRCMP(s, "include")) != NULL) |
a1ac8edd WD |
732 | ch = '+'; |
733 | break; | |
734 | case 'm': | |
345e0988 | 735 | if ((s = RULE_STRCMP(s, "merge")) != NULL) |
a1ac8edd WD |
736 | ch = '.'; |
737 | break; | |
ed243f8c WD |
738 | case 'p': |
739 | if ((s = RULE_STRCMP(s, "protect")) != NULL) | |
740 | ch = 'P'; | |
741 | break; | |
742 | case 'r': | |
743 | if ((s = RULE_STRCMP(s, "risk")) != NULL) | |
744 | ch = 'R'; | |
745 | break; | |
746 | case 's': | |
747 | if ((s = RULE_STRCMP(s, "show")) != NULL) | |
748 | ch = 'S'; | |
749 | break; | |
a1ac8edd WD |
750 | default: |
751 | ch = *s; | |
64b761c1 WD |
752 | if (s[1] == ',') |
753 | s++; | |
a1ac8edd WD |
754 | break; |
755 | } | |
756 | switch (ch) { | |
6dfd07d0 | 757 | case ':': |
b6f06b8e WD |
758 | new_mflags |= MATCHFLG_PERDIR_MERGE |
759 | | MATCHFLG_FINISH_SETUP; | |
6dfd07d0 WD |
760 | /* FALL THROUGH */ |
761 | case '.': | |
b6f06b8e WD |
762 | new_mflags |= MATCHFLG_MERGE_FILE; |
763 | mods = MODIFIERS_INCL_EXCL MODIFIERS_MERGE_FILE; | |
6dfd07d0 WD |
764 | break; |
765 | case '+': | |
b6f06b8e | 766 | new_mflags |= MATCHFLG_INCLUDE; |
bf39270e | 767 | /* FALL THROUGH */ |
6dfd07d0 | 768 | case '-': |
b6f06b8e | 769 | mods = MODIFIERS_INCL_EXCL; |
6dfd07d0 | 770 | break; |
ed243f8c WD |
771 | case 'S': |
772 | new_mflags |= MATCHFLG_INCLUDE; | |
773 | /* FALL THROUGH */ | |
774 | case 'H': | |
775 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
776 | mods = MODIFIERS_HIDE_PROTECT; | |
777 | break; | |
778 | case 'R': | |
779 | new_mflags |= MATCHFLG_INCLUDE; | |
780 | /* FALL THROUGH */ | |
781 | case 'P': | |
782 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
783 | mods = MODIFIERS_HIDE_PROTECT; | |
784 | break; | |
6dfd07d0 | 785 | case '!': |
b6f06b8e | 786 | new_mflags |= MATCHFLG_CLEAR_LIST; |
6dfd07d0 WD |
787 | mods = NULL; |
788 | break; | |
789 | default: | |
ac1cb938 | 790 | rprintf(FERROR, "Unknown filter rule: `%s'\n", p); |
6dfd07d0 WD |
791 | exit_cleanup(RERR_SYNTAX); |
792 | } | |
bf39270e | 793 | while (mods && *++s && *s != ' ' && *s != '_') { |
6dfd07d0 | 794 | if (strchr(mods, *s) == NULL) { |
b6f06b8e | 795 | if (mflags & MATCHFLG_WORD_SPLIT && isspace(*s)) { |
6dfd07d0 WD |
796 | s--; |
797 | break; | |
798 | } | |
b6f06b8e | 799 | invalid: |
6dfd07d0 | 800 | rprintf(FERROR, |
b6f06b8e | 801 | "invalid modifier sequence at '%c' in filter rule: %s\n", |
6dfd07d0 WD |
802 | *s, p); |
803 | exit_cleanup(RERR_SYNTAX); | |
804 | } | |
805 | switch (*s) { | |
806 | case '-': | |
b6f06b8e WD |
807 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
808 | goto invalid; | |
809 | new_mflags |= MATCHFLG_NO_PREFIXES; | |
6dfd07d0 WD |
810 | break; |
811 | case '+': | |
b6f06b8e WD |
812 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
813 | goto invalid; | |
814 | new_mflags |= MATCHFLG_NO_PREFIXES | |
815 | | MATCHFLG_INCLUDE; | |
6dfd07d0 | 816 | break; |
bf39270e | 817 | case '/': |
b6f06b8e | 818 | new_mflags |= MATCHFLG_ABS_PATH; |
bf39270e | 819 | break; |
f2ae9e85 | 820 | case '!': |
b6f06b8e | 821 | new_mflags |= MATCHFLG_NEGATE; |
f2ae9e85 | 822 | break; |
6dfd07d0 | 823 | case 'C': |
b6f06b8e WD |
824 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
825 | goto invalid; | |
b6f06b8e WD |
826 | new_mflags |= MATCHFLG_NO_PREFIXES |
827 | | MATCHFLG_WORD_SPLIT | |
fdc79501 WD |
828 | | MATCHFLG_NO_INHERIT |
829 | | MATCHFLG_CVS_IGNORE; | |
6dfd07d0 WD |
830 | break; |
831 | case 'e': | |
b6f06b8e | 832 | new_mflags |= MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
833 | break; |
834 | case 'n': | |
b6f06b8e | 835 | new_mflags |= MATCHFLG_NO_INHERIT; |
6dfd07d0 | 836 | break; |
ccdb23bb WD |
837 | case 'p': |
838 | new_mflags |= MATCHFLG_PERISHABLE; | |
839 | break; | |
ed243f8c WD |
840 | case 'r': |
841 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
842 | break; | |
843 | case 's': | |
844 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
845 | break; | |
0b2901b7 | 846 | case 'w': |
b6f06b8e | 847 | new_mflags |= MATCHFLG_WORD_SPLIT; |
6dfd07d0 WD |
848 | break; |
849 | } | |
850 | } | |
851 | if (*s) | |
852 | s++; | |
6dfd07d0 WD |
853 | } |
854 | ||
b6f06b8e | 855 | if (mflags & MATCHFLG_WORD_SPLIT) { |
fdc79501 | 856 | const uchar *cp = s; |
96d3590a WD |
857 | /* Token ends at whitespace or the end of the string. */ |
858 | while (!isspace(*cp) && *cp != '\0') | |
859 | cp++; | |
860 | len = cp - s; | |
861 | } else | |
0eeb1cf8 | 862 | len = strlen((char*)s); |
96d3590a | 863 | |
b6f06b8e | 864 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
35a388b1 WD |
865 | if (!(mflags & MATCHFLG_NO_PREFIXES) |
866 | && !(xflags & XFLG_OLD_PREFIXES) && len) { | |
6dfd07d0 WD |
867 | rprintf(FERROR, |
868 | "'!' rule has trailing characters: %s\n", p); | |
869 | exit_cleanup(RERR_SYNTAX); | |
870 | } | |
871 | if (len > 1) | |
b6f06b8e | 872 | new_mflags &= ~MATCHFLG_CLEAR_LIST; |
fdc79501 | 873 | } else if (!len && !(new_mflags & MATCHFLG_CVS_IGNORE)) { |
6dfd07d0 WD |
874 | rprintf(FERROR, "unexpected end of filter rule: %s\n", p); |
875 | exit_cleanup(RERR_SYNTAX); | |
876 | } | |
877 | ||
f1678790 | 878 | /* --delete-excluded turns an un-modified include/exclude into a |
48ecccce WD |
879 | * sender-side rule. We also affect per-dir merge files that take |
880 | * no prefixes as a simple optimization. */ | |
f1678790 WD |
881 | if (delete_excluded |
882 | && !(new_mflags & (MATCHFLG_RECEIVER_SIDE|MATCHFLG_SENDER_SIDE)) | |
48ecccce WD |
883 | && (!(new_mflags & MATCHFLG_PERDIR_MERGE) |
884 | || new_mflags & MATCHFLG_NO_PREFIXES)) | |
f1678790 WD |
885 | new_mflags |= MATCHFLG_SENDER_SIDE; |
886 | ||
96d3590a | 887 | *len_ptr = len; |
b6f06b8e | 888 | *mflags_ptr = new_mflags; |
96d3590a | 889 | return (const char *)s; |
f8f72644 WD |
890 | } |
891 | ||
892 | ||
0f78b815 | 893 | static char default_cvsignore[] = |
46db1850 WD |
894 | /* These default ignored items come from the CVS manual. */ |
895 | "RCS SCCS CVS CVS.adm RCSLOG cvslog.* tags TAGS" | |
896 | " .make.state .nse_depinfo *~ #* .#* ,* _$* *$" | |
897 | " *.old *.bak *.BAK *.orig *.rej .del-*" | |
898 | " *.a *.olb *.o *.obj *.so *.exe" | |
899 | " *.Z *.elc *.ln core" | |
900 | /* The rest we added to suit ourself. */ | |
0485b451 | 901 | " .svn/ .git/ .bzr/"; |
46db1850 WD |
902 | |
903 | static void get_cvs_excludes(uint32 mflags) | |
904 | { | |
46db1850 | 905 | static int initialized = 0; |
c2f0e4d9 | 906 | char *p, fname[MAXPATHLEN]; |
46db1850 WD |
907 | |
908 | if (initialized) | |
909 | return; | |
910 | initialized = 1; | |
911 | ||
c2f0e4d9 WD |
912 | parse_rule(&cvs_filter_list, default_cvsignore, |
913 | mflags | (protocol_version >= 30 ? MATCHFLG_PERISHABLE : 0), | |
914 | 0); | |
46db1850 WD |
915 | |
916 | p = module_id >= 0 && lp_use_chroot(module_id) ? "/" : getenv("HOME"); | |
917 | if (p && pathjoin(fname, MAXPATHLEN, p, ".cvsignore") < MAXPATHLEN) | |
918 | parse_filter_file(&cvs_filter_list, fname, mflags, 0); | |
919 | ||
920 | parse_rule(&cvs_filter_list, getenv("CVSIGNORE"), mflags, 0); | |
921 | } | |
922 | ||
923 | ||
fdc79501 WD |
924 | void parse_rule(struct filter_list_struct *listp, const char *pattern, |
925 | uint32 mflags, int xflags) | |
c627d613 | 926 | { |
fdc79501 WD |
927 | unsigned int pat_len; |
928 | uint32 new_mflags; | |
6dfd07d0 | 929 | const char *cp, *p; |
5be7fa93 | 930 | |
f8f72644 | 931 | if (!pattern) |
5e7dbaca | 932 | return; |
f8f72644 | 933 | |
b2aa573b | 934 | while (1) { |
6dfd07d0 | 935 | /* Remember that the returned string is NOT '\0' terminated! */ |
fdc79501 | 936 | cp = parse_rule_tok(pattern, mflags, xflags, |
b6f06b8e | 937 | &pat_len, &new_mflags); |
6dfd07d0 | 938 | if (!cp) |
b2aa573b | 939 | break; |
969f7ed5 WD |
940 | |
941 | pattern = cp + pat_len; | |
942 | ||
6dfd07d0 | 943 | if (pat_len >= MAXPATHLEN) { |
969f7ed5 | 944 | rprintf(FERROR, "discarding over-long filter: %.*s\n", |
e8b21fe4 | 945 | (int)pat_len, cp); |
6dfd07d0 WD |
946 | continue; |
947 | } | |
5e972dcf | 948 | |
b6f06b8e | 949 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
de91e757 WD |
950 | if (verbose > 2) { |
951 | rprintf(FINFO, | |
7842418b | 952 | "[%s] clearing filter list%s\n", |
de91e757 WD |
953 | who_am_i(), listp->debug_type); |
954 | } | |
7842418b | 955 | clear_filter_list(listp); |
5e972dcf WD |
956 | continue; |
957 | } | |
b2aa573b | 958 | |
b6f06b8e | 959 | if (new_mflags & MATCHFLG_MERGE_FILE) { |
fdc79501 WD |
960 | unsigned int len; |
961 | if (!pat_len) { | |
962 | cp = ".cvsignore"; | |
963 | pat_len = 10; | |
964 | } | |
965 | len = pat_len; | |
b6f06b8e | 966 | if (new_mflags & MATCHFLG_EXCLUDE_SELF) { |
969f7ed5 WD |
967 | const char *name = cp + len; |
968 | while (name > cp && name[-1] != '/') name--; | |
969 | len -= name - cp; | |
fdc79501 | 970 | add_rule(listp, name, len, 0, 0); |
b6f06b8e | 971 | new_mflags &= ~MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
972 | len = pat_len; |
973 | } | |
b6f06b8e | 974 | if (new_mflags & MATCHFLG_PERDIR_MERGE) { |
6dfd07d0 | 975 | if (parent_dirscan) { |
b6f06b8e WD |
976 | if (!(p = parse_merge_name(cp, &len, |
977 | module_dirlen))) | |
6dfd07d0 | 978 | continue; |
fdc79501 | 979 | add_rule(listp, p, len, new_mflags, 0); |
6dfd07d0 WD |
980 | continue; |
981 | } | |
982 | } else { | |
6dfd07d0 WD |
983 | if (!(p = parse_merge_name(cp, &len, 0))) |
984 | continue; | |
fdc79501 WD |
985 | parse_filter_file(listp, p, new_mflags, |
986 | XFLG_FATAL_ERRORS); | |
6dfd07d0 WD |
987 | continue; |
988 | } | |
f8f72644 | 989 | } |
6dfd07d0 | 990 | |
fdc79501 WD |
991 | add_rule(listp, cp, pat_len, new_mflags, xflags); |
992 | ||
993 | if (new_mflags & MATCHFLG_CVS_IGNORE | |
994 | && !(new_mflags & MATCHFLG_MERGE_FILE)) | |
46db1850 | 995 | get_cvs_excludes(new_mflags); |
8c35542d | 996 | } |
c627d613 AT |
997 | } |
998 | ||
c627d613 | 999 | |
fdc79501 WD |
1000 | void parse_filter_file(struct filter_list_struct *listp, const char *fname, |
1001 | uint32 mflags, int xflags) | |
c627d613 | 1002 | { |
5e7dbaca | 1003 | FILE *fp; |
3fac51e2 | 1004 | char line[BIGPATHBUFLEN]; |
7cd72c79 | 1005 | char *eob = line + sizeof line - 1; |
b6f06b8e | 1006 | int word_split = mflags & MATCHFLG_WORD_SPLIT; |
ccdff3eb | 1007 | |
5be7fa93 WD |
1008 | if (!fname || !*fname) |
1009 | return; | |
1010 | ||
5a016db9 WD |
1011 | if (*fname != '-' || fname[1] || am_server) { |
1012 | if (server_filter_list.head) { | |
1013 | strlcpy(line, fname, sizeof line); | |
b58bfb2f | 1014 | clean_fname(line, CFN_COLLAPSE_DOT_DOT_DIRS); |
5a016db9 WD |
1015 | if (check_filter(&server_filter_list, line, 0) < 0) |
1016 | fp = NULL; | |
1017 | else | |
1018 | fp = fopen(line, "rb"); | |
1019 | } else | |
1020 | fp = fopen(fname, "rb"); | |
1021 | } else | |
5e7dbaca | 1022 | fp = stdin; |
bf39270e WD |
1023 | |
1024 | if (verbose > 2) { | |
fdc79501 | 1025 | rprintf(FINFO, "[%s] parse_filter_file(%s,%x,%x)%s\n", |
45c49b52 | 1026 | who_am_i(), fname, mflags, xflags, |
bf39270e WD |
1027 | fp ? "" : " [not found]"); |
1028 | } | |
1029 | ||
5e7dbaca | 1030 | if (!fp) { |
f8f72644 | 1031 | if (xflags & XFLG_FATAL_ERRORS) { |
a039749b | 1032 | rsyserr(FERROR, errno, |
6dfd07d0 | 1033 | "failed to open %sclude file %s", |
b6f06b8e | 1034 | mflags & MATCHFLG_INCLUDE ? "in" : "ex", |
45c49b52 | 1035 | fname); |
65417579 | 1036 | exit_cleanup(RERR_FILEIO); |
2b6b4d53 | 1037 | } |
5be7fa93 | 1038 | return; |
2b6b4d53 | 1039 | } |
6dfd07d0 WD |
1040 | dirbuf[dirbuf_len] = '\0'; |
1041 | ||
ccdff3eb | 1042 | while (1) { |
5e7dbaca | 1043 | char *s = line; |
619d21ff | 1044 | int ch, overflow = 0; |
ccdff3eb | 1045 | while (1) { |
5e7dbaca | 1046 | if ((ch = getc(fp)) == EOF) { |
61e16468 WD |
1047 | if (ferror(fp) && errno == EINTR) { |
1048 | clearerr(fp); | |
ccdff3eb | 1049 | continue; |
61e16468 | 1050 | } |
ccdff3eb WD |
1051 | break; |
1052 | } | |
40d38dc0 WD |
1053 | if (word_split && isspace(ch)) |
1054 | break; | |
ccdff3eb WD |
1055 | if (eol_nulls? !ch : (ch == '\n' || ch == '\r')) |
1056 | break; | |
1057 | if (s < eob) | |
1058 | *s++ = ch; | |
619d21ff WD |
1059 | else |
1060 | overflow = 1; | |
1061 | } | |
1062 | if (overflow) { | |
7842418b | 1063 | rprintf(FERROR, "discarding over-long filter: %s...\n", line); |
619d21ff | 1064 | s = line; |
ccdff3eb WD |
1065 | } |
1066 | *s = '\0'; | |
7f0feb4d WD |
1067 | /* Skip an empty token and (when line parsing) comments. */ |
1068 | if (*line && (word_split || (*line != ';' && *line != '#'))) | |
fdc79501 | 1069 | parse_rule(listp, line, mflags, xflags); |
5e7dbaca | 1070 | if (ch == EOF) |
ccdff3eb | 1071 | break; |
2b6b4d53 | 1072 | } |
5e7dbaca | 1073 | fclose(fp); |
c627d613 AT |
1074 | } |
1075 | ||
a261103c | 1076 | /* If the "for_xfer" flag is set, the prefix is made compatible with the |
fdc79501 WD |
1077 | * current protocol_version (if possible) or a NULL is returned (if not |
1078 | * possible). */ | |
a261103c | 1079 | char *get_rule_prefix(int match_flags, const char *pat, int for_xfer, |
fdc79501 | 1080 | unsigned int *plen_ptr) |
417b5999 WD |
1081 | { |
1082 | static char buf[MAX_RULE_PREFIX+1]; | |
1083 | char *op = buf; | |
2217b30a | 1084 | int legal_len = for_xfer && protocol_version < 29 ? 1 : MAX_RULE_PREFIX-1; |
417b5999 WD |
1085 | |
1086 | if (match_flags & MATCHFLG_PERDIR_MERGE) { | |
fdc79501 WD |
1087 | if (legal_len == 1) |
1088 | return NULL; | |
417b5999 | 1089 | *op++ = ':'; |
fdc79501 WD |
1090 | } else if (match_flags & MATCHFLG_INCLUDE) |
1091 | *op++ = '+'; | |
1092 | else if (legal_len != 1 | |
1093 | || ((*pat == '-' || *pat == '+') && pat[1] == ' ')) | |
1094 | *op++ = '-'; | |
1095 | else | |
1096 | legal_len = 0; | |
1097 | ||
2a28dd32 WD |
1098 | if (match_flags & MATCHFLG_NEGATE) |
1099 | *op++ = '!'; | |
fdc79501 WD |
1100 | if (match_flags & MATCHFLG_CVS_IGNORE) |
1101 | *op++ = 'C'; | |
1102 | else { | |
417b5999 WD |
1103 | if (match_flags & MATCHFLG_NO_INHERIT) |
1104 | *op++ = 'n'; | |
d09e800a WD |
1105 | if (match_flags & MATCHFLG_WORD_SPLIT) |
1106 | *op++ = 'w'; | |
417b5999 WD |
1107 | if (match_flags & MATCHFLG_NO_PREFIXES) { |
1108 | if (match_flags & MATCHFLG_INCLUDE) | |
1109 | *op++ = '+'; | |
1110 | else | |
1111 | *op++ = '-'; | |
1112 | } | |
417b5999 | 1113 | } |
46db1850 WD |
1114 | if (match_flags & MATCHFLG_EXCLUDE_SELF) |
1115 | *op++ = 'e'; | |
ed243f8c WD |
1116 | if (match_flags & MATCHFLG_SENDER_SIDE |
1117 | && (!for_xfer || protocol_version >= 29)) | |
1118 | *op++ = 's'; | |
1119 | if (match_flags & MATCHFLG_RECEIVER_SIDE | |
1120 | && (!for_xfer || protocol_version >= 29 | |
1121 | || (delete_excluded && am_sender))) | |
1122 | *op++ = 'r'; | |
ccdb23bb WD |
1123 | if (match_flags & MATCHFLG_PERISHABLE) { |
1124 | if (!for_xfer || protocol_version >= 30) | |
1125 | *op++ = 'p'; | |
1126 | else if (am_sender) | |
1127 | return NULL; | |
1128 | } | |
448797a1 WD |
1129 | if (op - buf > legal_len) |
1130 | return NULL; | |
2217b30a WD |
1131 | if (legal_len) |
1132 | *op++ = ' '; | |
417b5999 WD |
1133 | *op = '\0'; |
1134 | if (plen_ptr) | |
1135 | *plen_ptr = op - buf; | |
417b5999 WD |
1136 | return buf; |
1137 | } | |
c627d613 | 1138 | |
fdc79501 | 1139 | static void send_rules(int f_out, struct filter_list_struct *flp) |
c627d613 | 1140 | { |
ed243f8c | 1141 | struct filter_struct *ent, *prev = NULL; |
25cf8893 | 1142 | |
fdc79501 | 1143 | for (ent = flp->head; ent; ent = ent->next) { |
417b5999 | 1144 | unsigned int len, plen, dlen; |
ed243f8c | 1145 | int elide = 0; |
417b5999 | 1146 | char *p; |
2fb139c1 | 1147 | |
f1678790 WD |
1148 | /* Note we need to check delete_excluded here in addition to |
1149 | * the code in parse_rule_tok() because some rules may have | |
48ecccce WD |
1150 | * been added before we found the --delete-excluded option. |
1151 | * We must also elide any CVS merge-file rules to avoid a | |
1152 | * backward compatibility problem, and we elide any no-prefix | |
1153 | * merge files as an optimization (since they can only have | |
1154 | * include/exclude rules). */ | |
ed243f8c WD |
1155 | if (ent->match_flags & MATCHFLG_SENDER_SIDE) |
1156 | elide = am_sender ? 1 : -1; | |
1157 | if (ent->match_flags & MATCHFLG_RECEIVER_SIDE) | |
1158 | elide = elide ? 0 : am_sender ? -1 : 1; | |
97bf86f8 | 1159 | else if (delete_excluded && !elide |
48ecccce WD |
1160 | && (!(ent->match_flags & MATCHFLG_PERDIR_MERGE) |
1161 | || ent->match_flags & MATCHFLG_NO_PREFIXES)) | |
ed243f8c WD |
1162 | elide = am_sender ? 1 : -1; |
1163 | if (elide < 0) { | |
1164 | if (prev) | |
1165 | prev->next = ent->next; | |
1166 | else | |
1167 | flp->head = ent->next; | |
1168 | } else | |
1169 | prev = ent; | |
1170 | if (elide > 0) | |
1171 | continue; | |
fdc79501 WD |
1172 | if (ent->match_flags & MATCHFLG_CVS_IGNORE |
1173 | && !(ent->match_flags & MATCHFLG_MERGE_FILE)) { | |
98e47414 | 1174 | int f = am_sender || protocol_version < 29 ? f_out : -2; |
ed243f8c | 1175 | send_rules(f, &cvs_filter_list); |
98e47414 | 1176 | if (f == f_out) |
417b5999 | 1177 | continue; |
fdc79501 WD |
1178 | } |
1179 | p = get_rule_prefix(ent->match_flags, ent->pattern, 1, &plen); | |
1180 | if (!p) { | |
417b5999 | 1181 | rprintf(FERROR, |
fdc79501 | 1182 | "filter rules are too modern for remote rsync.\n"); |
caf8299e | 1183 | exit_cleanup(RERR_PROTOCOL); |
5f5be796 | 1184 | } |
ed243f8c WD |
1185 | if (f_out < 0) |
1186 | continue; | |
fdc79501 | 1187 | len = strlen(ent->pattern); |
417b5999 | 1188 | dlen = ent->match_flags & MATCHFLG_DIRECTORY ? 1 : 0; |
fdc79501 WD |
1189 | if (!(plen + len + dlen)) |
1190 | continue; | |
1191 | write_int(f_out, plen + len + dlen); | |
417b5999 | 1192 | if (plen) |
fdc79501 WD |
1193 | write_buf(f_out, p, plen); |
1194 | write_buf(f_out, ent->pattern, len); | |
417b5999 | 1195 | if (dlen) |
fdc79501 | 1196 | write_byte(f_out, '/'); |
0f2ac855 | 1197 | } |
ed243f8c | 1198 | flp->tail = prev; |
c627d613 AT |
1199 | } |
1200 | ||
fdc79501 WD |
1201 | /* This is only called by the client. */ |
1202 | void send_filter_list(int f_out) | |
1203 | { | |
d5782b52 WD |
1204 | int receiver_wants_list = prune_empty_dirs |
1205 | || (delete_mode && (!delete_excluded || protocol_version >= 29)); | |
448797a1 WD |
1206 | |
1207 | if (local_server || (am_sender && !receiver_wants_list)) | |
fdc79501 WD |
1208 | f_out = -1; |
1209 | if (cvs_exclude && am_sender) { | |
1210 | if (protocol_version >= 29) | |
1211 | parse_rule(&filter_list, ":C", 0, 0); | |
1212 | parse_rule(&filter_list, "-C", 0, 0); | |
1213 | } | |
c627d613 | 1214 | |
ed243f8c WD |
1215 | send_rules(f_out, &filter_list); |
1216 | ||
1217 | if (f_out >= 0) | |
fdc79501 | 1218 | write_int(f_out, 0); |
fdc79501 WD |
1219 | |
1220 | if (cvs_exclude) { | |
1221 | if (!am_sender || protocol_version < 29) | |
1222 | parse_rule(&filter_list, ":C", 0, 0); | |
1223 | if (!am_sender) | |
1224 | parse_rule(&filter_list, "-C", 0, 0); | |
1225 | } | |
1226 | } | |
1227 | ||
1228 | /* This is only called by the server. */ | |
1229 | void recv_filter_list(int f_in) | |
c627d613 | 1230 | { |
3fac51e2 | 1231 | char line[BIGPATHBUFLEN]; |
fdc79501 | 1232 | int xflags = protocol_version >= 29 ? 0 : XFLG_OLD_PREFIXES; |
d5782b52 | 1233 | int receiver_wants_list = prune_empty_dirs |
e257c6c2 WD |
1234 | || (delete_mode |
1235 | && (!delete_excluded || protocol_version >= 29)); | |
fdc79501 WD |
1236 | unsigned int len; |
1237 | ||
448797a1 | 1238 | if (!local_server && (am_sender || receiver_wants_list)) { |
fdc79501 WD |
1239 | while ((len = read_int(f_in)) != 0) { |
1240 | if (len >= sizeof line) | |
a1f99493 | 1241 | overflow_exit("recv_rules"); |
fdc79501 WD |
1242 | read_sbuf(f_in, line, len); |
1243 | parse_rule(&filter_list, line, 0, xflags); | |
1244 | } | |
1245 | } | |
9dd891bb | 1246 | |
fdc79501 | 1247 | if (cvs_exclude) { |
1412da7c | 1248 | if (local_server || am_sender || protocol_version < 29) |
fdc79501 | 1249 | parse_rule(&filter_list, ":C", 0, 0); |
1412da7c | 1250 | if (local_server || am_sender) |
fdc79501 | 1251 | parse_rule(&filter_list, "-C", 0, 0); |
651443a7 | 1252 | } |
ed243f8c WD |
1253 | |
1254 | if (local_server) /* filter out any rules that aren't for us. */ | |
1255 | send_rules(-1, &filter_list); | |
651443a7 | 1256 | } |