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f0f5767f | 1 | /* -*- c-file-style: "linux" -*- |
0f2ac855 | 2 | * |
07a874fd MP |
3 | * Copyright (C) 1996-2001 by Andrew Tridgell <tridge@samba.org> |
4 | * Copyright (C) 1996 by Paul Mackerras | |
5 | * Copyright (C) 2002 by Martin Pool | |
0f2ac855 | 6 | * |
07a874fd MP |
7 | * This program is free software; you can redistribute it and/or modify |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
0f2ac855 | 11 | * |
07a874fd MP |
12 | * This program is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
0f2ac855 | 16 | * |
07a874fd MP |
17 | * You should have received a copy of the GNU General Public License |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | */ | |
c627d613 | 21 | |
2b6b4d53 AT |
22 | /* a lot of this stuff was originally derived from GNU tar, although |
23 | it has now changed so much that it is hard to tell :) */ | |
c627d613 | 24 | |
d567322f MP |
25 | /* include/exclude cluestick added by Martin Pool <mbp@samba.org> */ |
26 | ||
c627d613 AT |
27 | #include "rsync.h" |
28 | ||
29 | extern int verbose; | |
5a016db9 | 30 | extern int am_server; |
fdc79501 | 31 | extern int am_sender; |
40d38dc0 WD |
32 | extern int eol_nulls; |
33 | extern int list_only; | |
34 | extern int recurse; | |
6dfd07d0 | 35 | extern int io_error; |
1412da7c | 36 | extern int local_server; |
d5782b52 | 37 | extern int prune_empty_dirs; |
fdc79501 WD |
38 | extern int delete_mode; |
39 | extern int delete_excluded; | |
40 | extern int cvs_exclude; | |
6dfd07d0 WD |
41 | extern int sanitize_paths; |
42 | extern int protocol_version; | |
bf39270e | 43 | extern int module_id; |
40d38dc0 WD |
44 | |
45 | extern char curr_dir[]; | |
6dfd07d0 WD |
46 | extern unsigned int curr_dir_len; |
47 | extern unsigned int module_dirlen; | |
c627d613 | 48 | |
7842418b | 49 | struct filter_list_struct filter_list = { 0, 0, "" }; |
c81a20fb WD |
50 | struct filter_list_struct cvs_filter_list = { 0, 0, " [global CVS]" }; |
51 | struct filter_list_struct server_filter_list = { 0, 0, " [daemon]" }; | |
c627d613 | 52 | |
6dfd07d0 | 53 | /* Need room enough for ":MODS " prefix plus some room to grow. */ |
7842418b | 54 | #define MAX_RULE_PREFIX (16) |
6dfd07d0 | 55 | |
d727f0ff | 56 | #define MODIFIERS_MERGE_FILE "-+Cenw" |
ed243f8c WD |
57 | #define MODIFIERS_INCL_EXCL "/!Crs" |
58 | #define MODIFIERS_HIDE_PROTECT "/!" | |
b6f06b8e | 59 | |
7842418b | 60 | /* The dirbuf is set by push_local_filters() to the current subdirectory |
6dfd07d0 WD |
61 | * relative to curr_dir that is being processed. The path always has a |
62 | * trailing slash appended, and the variable dirbuf_len contains the length | |
63 | * of this path prefix. The path is always absolute. */ | |
64 | static char dirbuf[MAXPATHLEN+1]; | |
65 | static unsigned int dirbuf_len = 0; | |
66 | static int dirbuf_depth; | |
67 | ||
68 | /* This is True when we're scanning parent dirs for per-dir merge-files. */ | |
69 | static BOOL parent_dirscan = False; | |
70 | ||
71 | /* This array contains a list of all the currently active per-dir merge | |
72 | * files. This makes it easier to save the appropriate values when we | |
73 | * "push" down into each subdirectory. */ | |
7842418b | 74 | static struct filter_struct **mergelist_parents; |
6dfd07d0 WD |
75 | static int mergelist_cnt = 0; |
76 | static int mergelist_size = 0; | |
77 | ||
7842418b | 78 | /* Each filter_list_struct describes a singly-linked list by keeping track |
6dfd07d0 WD |
79 | * of both the head and tail pointers. The list is slightly unusual in that |
80 | * a parent-dir's content can be appended to the end of the local list in a | |
81 | * special way: the last item in the local list has its "next" pointer set | |
82 | * to point to the inherited list, but the local list's tail pointer points | |
83 | * at the end of the local list. Thus, if the local list is empty, the head | |
84 | * will be pointing at the inherited content but the tail will be NULL. To | |
85 | * help you visualize this, here are the possible list arrangements: | |
86 | * | |
87 | * Completely Empty Local Content Only | |
88 | * ================================== ==================================== | |
89 | * head -> NULL head -> Local1 -> Local2 -> NULL | |
90 | * tail -> NULL tail -------------^ | |
91 | * | |
92 | * Inherited Content Only Both Local and Inherited Content | |
93 | * ================================== ==================================== | |
94 | * head -> Parent1 -> Parent2 -> NULL head -> L1 -> L2 -> P1 -> P2 -> NULL | |
95 | * tail -> NULL tail ---------^ | |
96 | * | |
97 | * This means that anyone wanting to traverse the whole list to use it just | |
98 | * needs to start at the head and use the "next" pointers until it goes | |
99 | * NULL. To add new local content, we insert the item after the tail item | |
100 | * and update the tail (obviously, if "tail" was NULL, we insert it at the | |
101 | * head). To clear the local list, WE MUST NOT FREE THE INHERITED CONTENT | |
102 | * because it is shared between the current list and our parent list(s). | |
103 | * The easiest way to handle this is to simply truncate the list after the | |
104 | * tail item and then free the local list from the head. When inheriting | |
7842418b | 105 | * the list for a new local dir, we just save off the filter_list_struct |
6dfd07d0 WD |
106 | * values (so we can pop back to them later) and set the tail to NULL. |
107 | */ | |
108 | ||
7842418b | 109 | static void free_filter(struct filter_struct *ex) |
6dfd07d0 WD |
110 | { |
111 | if (ex->match_flags & MATCHFLG_PERDIR_MERGE) { | |
112 | free(ex->u.mergelist->debug_type); | |
113 | free(ex->u.mergelist); | |
114 | mergelist_cnt--; | |
115 | } | |
116 | free(ex->pattern); | |
117 | free(ex); | |
118 | } | |
119 | ||
7842418b | 120 | /* Build a filter structure given a filter pattern. The value in "pat" |
6dfd07d0 | 121 | * is not null-terminated. */ |
fdc79501 WD |
122 | static void add_rule(struct filter_list_struct *listp, const char *pat, |
123 | unsigned int pat_len, uint32 mflags, int xflags) | |
c627d613 | 124 | { |
7842418b | 125 | struct filter_struct *ret; |
f8f72644 | 126 | const char *cp; |
5e972dcf | 127 | unsigned int ex_len; |
c627d613 | 128 | |
6dfd07d0 | 129 | if (verbose > 2) { |
fdc79501 WD |
130 | rprintf(FINFO, "[%s] add_rule(%s%.*s%s)%s\n", |
131 | who_am_i(), get_rule_prefix(mflags, pat, 0, NULL), | |
132 | (int)pat_len, pat, | |
133 | (mflags & MATCHFLG_DIRECTORY) ? "/" : "", | |
6dfd07d0 WD |
134 | listp->debug_type); |
135 | } | |
136 | ||
4fc8140a | 137 | /* These flags also indicate that we're reading a list that |
6d7b3d52 | 138 | * needs to be filtered now, not post-filtered later. */ |
4fc8140a | 139 | if (xflags & (XFLG_ANCHORED2ABS|XFLG_ABS_IF_SLASH)) { |
6d7b3d52 WD |
140 | uint32 mf = mflags & (MATCHFLG_RECEIVER_SIDE|MATCHFLG_SENDER_SIDE); |
141 | if (am_sender) { | |
142 | if (mf == MATCHFLG_RECEIVER_SIDE) | |
143 | return; | |
144 | } else { | |
145 | if (mf == MATCHFLG_SENDER_SIDE) | |
146 | return; | |
147 | } | |
148 | } | |
149 | ||
fdc79501 WD |
150 | if (!(ret = new(struct filter_struct))) |
151 | out_of_memory("add_rule"); | |
5f5be796 | 152 | memset(ret, 0, sizeof ret[0]); |
2b6b4d53 | 153 | |
4fc8140a WD |
154 | if (!(mflags & (MATCHFLG_ABS_PATH | MATCHFLG_MERGE_FILE)) |
155 | && ((xflags & (XFLG_ANCHORED2ABS|XFLG_ABS_IF_SLASH) && *pat == '/') | |
156 | || (xflags & XFLG_ABS_IF_SLASH && strchr(pat, '/') != NULL))) { | |
bf39270e | 157 | mflags |= MATCHFLG_ABS_PATH; |
4fc8140a WD |
158 | if (*pat == '/') |
159 | ex_len = dirbuf_len - module_dirlen - 1; | |
160 | else | |
161 | ex_len = 0; | |
6dfd07d0 | 162 | } else |
f8f72644 | 163 | ex_len = 0; |
fdc79501 WD |
164 | if (!(ret->pattern = new_array(char, ex_len + pat_len + 1))) |
165 | out_of_memory("add_rule"); | |
f8f72644 | 166 | if (ex_len) |
6dfd07d0 | 167 | memcpy(ret->pattern, dirbuf + module_dirlen, ex_len); |
5e972dcf | 168 | strlcpy(ret->pattern + ex_len, pat, pat_len + 1); |
f8f72644 WD |
169 | pat_len += ex_len; |
170 | ||
171 | if (strpbrk(ret->pattern, "*[?")) { | |
5e972dcf | 172 | mflags |= MATCHFLG_WILD; |
96d3590a | 173 | if ((cp = strstr(ret->pattern, "**")) != NULL) { |
5e972dcf | 174 | mflags |= MATCHFLG_WILD2; |
170381c0 | 175 | /* If the pattern starts with **, note that. */ |
96d3590a | 176 | if (cp == ret->pattern) |
5e972dcf | 177 | mflags |= MATCHFLG_WILD2_PREFIX; |
e5daa273 WD |
178 | /* If the pattern ends with ***, note that. */ |
179 | if (pat_len >= 3 | |
180 | && ret->pattern[pat_len-3] == '*' | |
181 | && ret->pattern[pat_len-2] == '*' | |
182 | && ret->pattern[pat_len-1] == '*') | |
183 | mflags |= MATCHFLG_WILD3_SUFFIX; | |
0f2ac855 | 184 | } |
2bca43f6 | 185 | } |
c627d613 | 186 | |
5be7fa93 WD |
187 | if (pat_len > 1 && ret->pattern[pat_len-1] == '/') { |
188 | ret->pattern[pat_len-1] = 0; | |
5e972dcf | 189 | mflags |= MATCHFLG_DIRECTORY; |
2b6b4d53 | 190 | } |
c627d613 | 191 | |
6dfd07d0 | 192 | if (mflags & MATCHFLG_PERDIR_MERGE) { |
7842418b | 193 | struct filter_list_struct *lp; |
6dfd07d0 WD |
194 | unsigned int len; |
195 | int i; | |
196 | ||
197 | if ((cp = strrchr(ret->pattern, '/')) != NULL) | |
198 | cp++; | |
199 | else | |
200 | cp = ret->pattern; | |
201 | ||
202 | /* If the local merge file was already mentioned, don't | |
203 | * add it again. */ | |
204 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b | 205 | struct filter_struct *ex = mergelist_parents[i]; |
6dfd07d0 WD |
206 | const char *s = strrchr(ex->pattern, '/'); |
207 | if (s) | |
bf39270e | 208 | s++; |
6dfd07d0 | 209 | else |
bf39270e | 210 | s = ex->pattern; |
6dfd07d0 WD |
211 | len = strlen(s); |
212 | if (len == pat_len - (cp - ret->pattern) | |
213 | && memcmp(s, cp, len) == 0) { | |
7842418b | 214 | free_filter(ret); |
6dfd07d0 WD |
215 | return; |
216 | } | |
217 | } | |
218 | ||
7842418b | 219 | if (!(lp = new_array(struct filter_list_struct, 1))) |
fdc79501 | 220 | out_of_memory("add_rule"); |
6dfd07d0 | 221 | lp->head = lp->tail = NULL; |
fdc79501 WD |
222 | if (asprintf(&lp->debug_type, " [per-dir %s]", cp) < 0) |
223 | out_of_memory("add_rule"); | |
6dfd07d0 WD |
224 | ret->u.mergelist = lp; |
225 | ||
226 | if (mergelist_cnt == mergelist_size) { | |
227 | mergelist_size += 5; | |
228 | mergelist_parents = realloc_array(mergelist_parents, | |
7842418b | 229 | struct filter_struct *, |
6dfd07d0 WD |
230 | mergelist_size); |
231 | if (!mergelist_parents) | |
fdc79501 | 232 | out_of_memory("add_rule"); |
6dfd07d0 WD |
233 | } |
234 | mergelist_parents[mergelist_cnt++] = ret; | |
235 | } else { | |
236 | for (cp = ret->pattern; (cp = strchr(cp, '/')) != NULL; cp++) | |
237 | ret->u.slash_cnt++; | |
238 | } | |
0944563e | 239 | |
c1b29492 WD |
240 | ret->match_flags = mflags; |
241 | ||
6dfd07d0 WD |
242 | if (!listp->tail) { |
243 | ret->next = listp->head; | |
b2aa573b | 244 | listp->head = listp->tail = ret; |
6dfd07d0 WD |
245 | } else { |
246 | ret->next = listp->tail->next; | |
b2aa573b WD |
247 | listp->tail->next = ret; |
248 | listp->tail = ret; | |
249 | } | |
2b6b4d53 AT |
250 | } |
251 | ||
7842418b | 252 | static void clear_filter_list(struct filter_list_struct *listp) |
2b6b4d53 | 253 | { |
6dfd07d0 | 254 | if (listp->tail) { |
7842418b | 255 | struct filter_struct *ent, *next; |
6dfd07d0 WD |
256 | /* Truncate any inherited items from the local list. */ |
257 | listp->tail->next = NULL; | |
258 | /* Now free everything that is left. */ | |
259 | for (ent = listp->head; ent; ent = next) { | |
260 | next = ent->next; | |
7842418b | 261 | free_filter(ent); |
6dfd07d0 WD |
262 | } |
263 | } | |
264 | ||
265 | listp->head = listp->tail = NULL; | |
2b6b4d53 | 266 | } |
c627d613 | 267 | |
6dfd07d0 WD |
268 | /* This returns an expanded (absolute) filename for the merge-file name if |
269 | * the name has any slashes in it OR if the parent_dirscan var is True; | |
270 | * otherwise it returns the original merge_file name. If the len_ptr value | |
271 | * is non-NULL the merge_file name is limited by the referenced length | |
272 | * value and will be updated with the length of the resulting name. We | |
273 | * always return a name that is null terminated, even if the merge_file | |
274 | * name was not. */ | |
275 | static char *parse_merge_name(const char *merge_file, unsigned int *len_ptr, | |
276 | unsigned int prefix_skip) | |
5be7fa93 | 277 | { |
6dfd07d0 WD |
278 | static char buf[MAXPATHLEN]; |
279 | char *fn, tmpbuf[MAXPATHLEN]; | |
280 | unsigned int fn_len; | |
281 | ||
282 | if (!parent_dirscan && *merge_file != '/') { | |
283 | /* Return the name unchanged it doesn't have any slashes. */ | |
284 | if (len_ptr) { | |
285 | const char *p = merge_file + *len_ptr; | |
286 | while (--p > merge_file && *p != '/') {} | |
287 | if (p == merge_file) { | |
288 | strlcpy(buf, merge_file, *len_ptr + 1); | |
289 | return buf; | |
290 | } | |
291 | } else if (strchr(merge_file, '/') == NULL) | |
292 | return (char *)merge_file; | |
293 | } | |
5be7fa93 | 294 | |
6dfd07d0 WD |
295 | fn = *merge_file == '/' ? buf : tmpbuf; |
296 | if (sanitize_paths) { | |
297 | const char *r = prefix_skip ? "/" : NULL; | |
298 | /* null-terminate the name if it isn't already */ | |
299 | if (len_ptr && merge_file[*len_ptr]) { | |
300 | char *to = fn == buf ? tmpbuf : buf; | |
301 | strlcpy(to, merge_file, *len_ptr + 1); | |
302 | merge_file = to; | |
303 | } | |
304 | if (!sanitize_path(fn, merge_file, r, dirbuf_depth)) { | |
305 | rprintf(FERROR, "merge-file name overflows: %s\n", | |
45c49b52 | 306 | merge_file); |
6dfd07d0 WD |
307 | return NULL; |
308 | } | |
309 | } else { | |
310 | strlcpy(fn, merge_file, len_ptr ? *len_ptr + 1 : MAXPATHLEN); | |
311 | clean_fname(fn, 1); | |
b2aa573b | 312 | } |
6dfd07d0 WD |
313 | |
314 | fn_len = strlen(fn); | |
315 | if (fn == buf) | |
316 | goto done; | |
317 | ||
318 | if (dirbuf_len + fn_len >= MAXPATHLEN) { | |
45c49b52 | 319 | rprintf(FERROR, "merge-file name overflows: %s\n", fn); |
6dfd07d0 WD |
320 | return NULL; |
321 | } | |
322 | memcpy(buf, dirbuf + prefix_skip, dirbuf_len - prefix_skip); | |
323 | memcpy(buf + dirbuf_len - prefix_skip, fn, fn_len + 1); | |
324 | fn_len = clean_fname(buf, 1); | |
325 | ||
326 | done: | |
327 | if (len_ptr) | |
328 | *len_ptr = fn_len; | |
329 | return buf; | |
330 | } | |
5be7fa93 | 331 | |
6dfd07d0 | 332 | /* Sets the dirbuf and dirbuf_len values. */ |
7842418b | 333 | void set_filter_dir(const char *dir, unsigned int dirlen) |
6dfd07d0 WD |
334 | { |
335 | unsigned int len; | |
336 | if (*dir != '/') { | |
337 | memcpy(dirbuf, curr_dir, curr_dir_len); | |
338 | dirbuf[curr_dir_len] = '/'; | |
339 | len = curr_dir_len + 1; | |
340 | if (len + dirlen >= MAXPATHLEN) | |
341 | dirlen = 0; | |
342 | } else | |
343 | len = 0; | |
344 | memcpy(dirbuf + len, dir, dirlen); | |
345 | dirbuf[dirlen + len] = '\0'; | |
346 | dirbuf_len = clean_fname(dirbuf, 1); | |
347 | if (dirbuf_len > 1 && dirbuf[dirbuf_len-1] == '.' | |
348 | && dirbuf[dirbuf_len-2] == '/') | |
349 | dirbuf_len -= 2; | |
350 | if (dirbuf_len != 1) | |
351 | dirbuf[dirbuf_len++] = '/'; | |
352 | dirbuf[dirbuf_len] = '\0'; | |
353 | if (sanitize_paths) | |
354 | dirbuf_depth = count_dir_elements(dirbuf + module_dirlen); | |
355 | } | |
356 | ||
357 | /* This routine takes a per-dir merge-file entry and finishes its setup. | |
358 | * If the name has a path portion then we check to see if it refers to a | |
359 | * parent directory of the first transfer dir. If it does, we scan all the | |
360 | * dirs from that point through the parent dir of the transfer dir looking | |
361 | * for the per-dir merge-file in each one. */ | |
7842418b | 362 | static BOOL setup_merge_file(struct filter_struct *ex, |
b6f06b8e | 363 | struct filter_list_struct *lp) |
6dfd07d0 WD |
364 | { |
365 | char buf[MAXPATHLEN]; | |
366 | char *x, *y, *pat = ex->pattern; | |
367 | unsigned int len; | |
368 | ||
369 | if (!(x = parse_merge_name(pat, NULL, 0)) || *x != '/') | |
370 | return 0; | |
371 | ||
372 | y = strrchr(x, '/'); | |
373 | *y = '\0'; | |
374 | ex->pattern = strdup(y+1); | |
375 | if (!*x) | |
376 | x = "/"; | |
377 | if (*x == '/') | |
378 | strlcpy(buf, x, MAXPATHLEN); | |
379 | else | |
380 | pathjoin(buf, MAXPATHLEN, dirbuf, x); | |
381 | ||
382 | len = clean_fname(buf, 1); | |
383 | if (len != 1 && len < MAXPATHLEN-1) { | |
384 | buf[len++] = '/'; | |
385 | buf[len] = '\0'; | |
386 | } | |
387 | /* This ensures that the specified dir is a parent of the transfer. */ | |
388 | for (x = buf, y = dirbuf; *x && *x == *y; x++, y++) {} | |
389 | if (*x) | |
390 | y += strlen(y); /* nope -- skip the scan */ | |
391 | ||
392 | parent_dirscan = True; | |
393 | while (*y) { | |
394 | char save[MAXPATHLEN]; | |
395 | strlcpy(save, y, MAXPATHLEN); | |
396 | *y = '\0'; | |
397 | dirbuf_len = y - dirbuf; | |
398 | strlcpy(x, ex->pattern, MAXPATHLEN - (x - buf)); | |
fdc79501 | 399 | parse_filter_file(lp, buf, ex->match_flags, XFLG_ANCHORED2ABS); |
6dfd07d0 WD |
400 | if (ex->match_flags & MATCHFLG_NO_INHERIT) |
401 | lp->head = NULL; | |
402 | lp->tail = NULL; | |
403 | strlcpy(y, save, MAXPATHLEN); | |
404 | while ((*x++ = *y++) != '/') {} | |
405 | } | |
406 | parent_dirscan = False; | |
407 | free(pat); | |
408 | return 1; | |
409 | } | |
410 | ||
411 | /* Each time rsync changes to a new directory it call this function to | |
412 | * handle all the per-dir merge-files. The "dir" value is the current path | |
413 | * relative to curr_dir (which might not be null-terminated). We copy it | |
414 | * into dirbuf so that we can easily append a file name on the end. */ | |
7842418b | 415 | void *push_local_filters(const char *dir, unsigned int dirlen) |
6dfd07d0 | 416 | { |
7842418b | 417 | struct filter_list_struct *ap, *push; |
6dfd07d0 WD |
418 | int i; |
419 | ||
7842418b | 420 | set_filter_dir(dir, dirlen); |
6dfd07d0 | 421 | |
a2b371cd WD |
422 | if (!mergelist_cnt) |
423 | return NULL; | |
424 | ||
7842418b | 425 | push = new_array(struct filter_list_struct, mergelist_cnt); |
6dfd07d0 | 426 | if (!push) |
7842418b | 427 | out_of_memory("push_local_filters"); |
6dfd07d0 WD |
428 | |
429 | for (i = 0, ap = push; i < mergelist_cnt; i++) { | |
430 | memcpy(ap++, mergelist_parents[i]->u.mergelist, | |
7842418b | 431 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
432 | } |
433 | ||
fdc79501 | 434 | /* Note: parse_filter_file() might increase mergelist_cnt, so keep |
6dfd07d0 WD |
435 | * this loop separate from the above loop. */ |
436 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b WD |
437 | struct filter_struct *ex = mergelist_parents[i]; |
438 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
439 | |
440 | if (verbose > 2) { | |
7842418b | 441 | rprintf(FINFO, "[%s] pushing filter list%s\n", |
6dfd07d0 WD |
442 | who_am_i(), lp->debug_type); |
443 | } | |
444 | ||
445 | lp->tail = NULL; /* Switch any local rules to inherited. */ | |
446 | if (ex->match_flags & MATCHFLG_NO_INHERIT) | |
447 | lp->head = NULL; | |
6dfd07d0 WD |
448 | |
449 | if (ex->match_flags & MATCHFLG_FINISH_SETUP) { | |
450 | ex->match_flags &= ~MATCHFLG_FINISH_SETUP; | |
b6f06b8e | 451 | if (setup_merge_file(ex, lp)) |
7842418b | 452 | set_filter_dir(dir, dirlen); |
6dfd07d0 WD |
453 | } |
454 | ||
455 | if (strlcpy(dirbuf + dirbuf_len, ex->pattern, | |
b6f06b8e | 456 | MAXPATHLEN - dirbuf_len) < MAXPATHLEN - dirbuf_len) { |
fdc79501 WD |
457 | parse_filter_file(lp, dirbuf, ex->match_flags, |
458 | XFLG_ANCHORED2ABS); | |
b6f06b8e | 459 | } else { |
6dfd07d0 WD |
460 | io_error |= IOERR_GENERAL; |
461 | rprintf(FINFO, | |
7842418b | 462 | "cannot add local filter rules in long-named directory: %s\n", |
6dfd07d0 WD |
463 | full_fname(dirbuf)); |
464 | } | |
465 | dirbuf[dirbuf_len] = '\0'; | |
466 | } | |
467 | ||
468 | return (void*)push; | |
469 | } | |
470 | ||
7842418b | 471 | void pop_local_filters(void *mem) |
6dfd07d0 | 472 | { |
7842418b | 473 | struct filter_list_struct *ap, *pop = (struct filter_list_struct*)mem; |
6dfd07d0 WD |
474 | int i; |
475 | ||
476 | for (i = mergelist_cnt; i-- > 0; ) { | |
7842418b WD |
477 | struct filter_struct *ex = mergelist_parents[i]; |
478 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
479 | |
480 | if (verbose > 2) { | |
7842418b | 481 | rprintf(FINFO, "[%s] popping filter list%s\n", |
6dfd07d0 WD |
482 | who_am_i(), lp->debug_type); |
483 | } | |
484 | ||
7842418b | 485 | clear_filter_list(lp); |
6dfd07d0 WD |
486 | } |
487 | ||
a2b371cd WD |
488 | if (!pop) |
489 | return; | |
490 | ||
6dfd07d0 WD |
491 | for (i = 0, ap = pop; i < mergelist_cnt; i++) { |
492 | memcpy(mergelist_parents[i]->u.mergelist, ap++, | |
7842418b | 493 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
494 | } |
495 | ||
496 | free(pop); | |
5be7fa93 WD |
497 | } |
498 | ||
7842418b | 499 | static int rule_matches(char *name, struct filter_struct *ex, int name_is_dir) |
2b6b4d53 | 500 | { |
e5daa273 | 501 | int slash_handling, str_cnt = 0, anchored_match = 0; |
f2ae9e85 | 502 | int ret_match = ex->match_flags & MATCHFLG_NEGATE ? 0 : 1; |
e5daa273 WD |
503 | char *p, *pattern = ex->pattern; |
504 | const char *strings[16]; /* more than enough */ | |
2b6b4d53 | 505 | |
9f186578 WD |
506 | if (!*name) |
507 | return 0; | |
508 | ||
6dfd07d0 | 509 | if (!ex->u.slash_cnt && !(ex->match_flags & MATCHFLG_WILD2)) { |
770de899 WD |
510 | /* If the pattern does not have any slashes AND it does |
511 | * not have a "**" (which could match a slash), then we | |
512 | * just match the name portion of the path. */ | |
5be7fa93 WD |
513 | if ((p = strrchr(name,'/')) != NULL) |
514 | name = p+1; | |
770de899 | 515 | } else if (ex->match_flags & MATCHFLG_ABS_PATH && *name != '/' |
6dfd07d0 | 516 | && curr_dir_len > module_dirlen + 1) { |
770de899 WD |
517 | /* If we're matching against an absolute-path pattern, |
518 | * we need to prepend our full path info. */ | |
e5daa273 WD |
519 | strings[str_cnt++] = curr_dir + module_dirlen + 1; |
520 | strings[str_cnt++] = "/"; | |
521 | } else if (ex->match_flags & MATCHFLG_WILD2_PREFIX && *name != '/') { | |
522 | /* Allow "**"+"/" to match at the start of the string. */ | |
523 | strings[str_cnt++] = "/"; | |
5be7fa93 | 524 | } |
e5daa273 WD |
525 | strings[str_cnt++] = name; |
526 | if (name_is_dir) { | |
527 | /* Allow a trailing "/"+"***" to match the directory. */ | |
528 | if (ex->match_flags & MATCHFLG_WILD3_SUFFIX) | |
529 | strings[str_cnt++] = "/"; | |
530 | } else if (ex->match_flags & MATCHFLG_DIRECTORY) | |
f2ae9e85 | 531 | return !ret_match; |
e5daa273 | 532 | strings[str_cnt] = NULL; |
2b6b4d53 | 533 | |
170381c0 | 534 | if (*pattern == '/') { |
770de899 | 535 | anchored_match = 1; |
2b6b4d53 | 536 | pattern++; |
e5daa273 WD |
537 | if (strings[0][0] == '/') |
538 | strings[0]++; | |
2b6b4d53 AT |
539 | } |
540 | ||
e5daa273 WD |
541 | if (!anchored_match && ex->u.slash_cnt |
542 | && !(ex->match_flags & MATCHFLG_WILD2)) { | |
170381c0 WD |
543 | /* A non-anchored match with an infix slash and no "**" |
544 | * needs to match the last slash_cnt+1 name elements. */ | |
e5daa273 WD |
545 | slash_handling = ex->u.slash_cnt + 1; |
546 | } else if (!anchored_match && !(ex->match_flags & MATCHFLG_WILD2_PREFIX) | |
547 | && ex->match_flags & MATCHFLG_WILD2) { | |
548 | /* A non-anchored match with an infix or trailing "**" (but not | |
549 | * a prefixed "**") needs to try matching after every slash. */ | |
550 | slash_handling = -1; | |
551 | } else { | |
552 | /* The pattern matches only at the start of the path or name. */ | |
553 | slash_handling = 0; | |
554 | } | |
555 | ||
556 | if (ex->match_flags & MATCHFLG_WILD) { | |
557 | if (wildmatch_array(pattern, strings, slash_handling)) | |
558 | return ret_match; | |
559 | } else if (str_cnt > 1) { | |
560 | if (litmatch_array(pattern, strings, slash_handling)) | |
f2ae9e85 | 561 | return ret_match; |
770de899 | 562 | } else if (anchored_match) { |
b3168628 | 563 | if (strcmp(strings[0], pattern) == 0) |
f2ae9e85 | 564 | return ret_match; |
2b6b4d53 AT |
565 | } else { |
566 | int l1 = strlen(name); | |
ea2111d1 | 567 | int l2 = strlen(pattern); |
0f2ac855 | 568 | if (l2 <= l1 && |
ea2111d1 | 569 | strcmp(name+(l1-l2),pattern) == 0 && |
170381c0 | 570 | (l1==l2 || name[l1-(l2+1)] == '/')) { |
f2ae9e85 | 571 | return ret_match; |
c36cd317 | 572 | } |
2b6b4d53 AT |
573 | } |
574 | ||
f2ae9e85 | 575 | return !ret_match; |
c627d613 AT |
576 | } |
577 | ||
578 | ||
7842418b WD |
579 | static void report_filter_result(char const *name, |
580 | struct filter_struct const *ent, | |
581 | int name_is_dir, const char *type) | |
d567322f | 582 | { |
0f2ac855 | 583 | /* If a trailing slash is present to match only directories, |
fdc79501 | 584 | * then it is stripped out by add_rule(). So as a special |
0f2ac855 WD |
585 | * case we add it back in here. */ |
586 | ||
ea847c62 | 587 | if (verbose >= 2) { |
d5782b52 WD |
588 | static char *actions[2][2] |
589 | = { {"show", "hid"}, {"risk", "protect"} }; | |
590 | const char *w = who_am_i(); | |
591 | rprintf(FINFO, "[%s] %sing %s %s because of pattern %s%s%s\n", | |
592 | w, actions[*w!='s'][!(ent->match_flags&MATCHFLG_INCLUDE)], | |
593 | name_is_dir ? "directory" : "file", name, ent->pattern, | |
594 | ent->match_flags & MATCHFLG_DIRECTORY ? "/" : "", type); | |
ea847c62 | 595 | } |
d567322f MP |
596 | } |
597 | ||
598 | ||
599 | /* | |
a6536635 WD |
600 | * Return -1 if file "name" is defined to be excluded by the specified |
601 | * exclude list, 1 if it is included, and 0 if it was not matched. | |
d567322f | 602 | */ |
7842418b | 603 | int check_filter(struct filter_list_struct *listp, char *name, int name_is_dir) |
c627d613 | 604 | { |
7842418b | 605 | struct filter_struct *ent; |
c627d613 | 606 | |
b2aa573b | 607 | for (ent = listp->head; ent; ent = ent->next) { |
6dfd07d0 | 608 | if (ent->match_flags & MATCHFLG_PERDIR_MERGE) { |
7842418b WD |
609 | int rc = check_filter(ent->u.mergelist, name, |
610 | name_is_dir); | |
6dfd07d0 WD |
611 | if (rc) |
612 | return rc; | |
613 | continue; | |
614 | } | |
fdc79501 WD |
615 | if (ent->match_flags & MATCHFLG_CVS_IGNORE) { |
616 | int rc = check_filter(&cvs_filter_list, name, | |
617 | name_is_dir); | |
618 | if (rc) | |
619 | return rc; | |
620 | continue; | |
621 | } | |
7842418b WD |
622 | if (rule_matches(name, ent, name_is_dir)) { |
623 | report_filter_result(name, ent, name_is_dir, | |
67340e95 | 624 | listp->debug_type); |
5e972dcf | 625 | return ent->match_flags & MATCHFLG_INCLUDE ? 1 : -1; |
0f2ac855 | 626 | } |
2b6b4d53 | 627 | } |
c627d613 | 628 | |
2b6b4d53 | 629 | return 0; |
c627d613 AT |
630 | } |
631 | ||
345e0988 | 632 | #define RULE_STRCMP(s,r) rule_strcmp((s), (r), sizeof (r) - 1) |
a1ac8edd | 633 | |
4adbb5f2 | 634 | static const uchar *rule_strcmp(const uchar *str, const char *rule, int rule_len) |
a1ac8edd | 635 | { |
4adbb5f2 | 636 | if (strncmp((char*)str, rule, rule_len) != 0) |
a1ac8edd WD |
637 | return NULL; |
638 | if (isspace(str[rule_len]) || str[rule_len] == '_' || !str[rule_len]) | |
639 | return str + rule_len - 1; | |
640 | if (str[rule_len] == ',') | |
641 | return str + rule_len; | |
642 | return NULL; | |
643 | } | |
c627d613 | 644 | |
f8f72644 WD |
645 | /* Get the next include/exclude arg from the string. The token will not |
646 | * be '\0' terminated, so use the returned length to limit the string. | |
647 | * Also, be sure to add this length to the returned pointer before passing | |
e425fbe8 | 648 | * it back to ask for the next token. This routine parses the "!" (list- |
b6f06b8e WD |
649 | * clearing) token and (depending on the mflags) the various prefixes. |
650 | * The *mflags_ptr value will be set on exit to the new MATCHFLG_* bits | |
651 | * for the current token. */ | |
fdc79501 WD |
652 | static const char *parse_rule_tok(const char *p, uint32 mflags, int xflags, |
653 | unsigned int *len_ptr, uint32 *mflags_ptr) | |
f8f72644 | 654 | { |
fdc79501 WD |
655 | const uchar *s = (const uchar *)p; |
656 | uint32 new_mflags; | |
657 | unsigned int len; | |
f8f72644 | 658 | |
b6f06b8e | 659 | if (mflags & MATCHFLG_WORD_SPLIT) { |
96d3590a WD |
660 | /* Skip over any initial whitespace. */ |
661 | while (isspace(*s)) | |
f8f72644 | 662 | s++; |
6dfd07d0 | 663 | /* Update to point to real start of rule. */ |
abca4eba | 664 | p = (const char *)s; |
f8f72644 | 665 | } |
6dfd07d0 WD |
666 | if (!*s) |
667 | return NULL; | |
668 | ||
b6f06b8e WD |
669 | new_mflags = mflags & MATCHFLGS_FROM_CONTAINER; |
670 | ||
671 | /* Figure out what kind of a filter rule "s" is pointing at. Note | |
672 | * that if MATCHFLG_NO_PREFIXES is set, the rule is either an include | |
673 | * or an exclude based on the inheritance of the MATCHFLG_INCLUDE | |
674 | * flag (above). XFLG_OLD_PREFIXES indicates a compatibility mode | |
675 | * for old include/exclude patterns where just "+ " and "- " are | |
676 | * allowed as optional prefixes. */ | |
677 | if (mflags & MATCHFLG_NO_PREFIXES) { | |
a1ac8edd | 678 | if (*s == '!' && mflags & MATCHFLG_CVS_IGNORE) |
b6f06b8e WD |
679 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
680 | } else if (xflags & XFLG_OLD_PREFIXES) { | |
681 | if (*s == '-' && s[1] == ' ') { | |
682 | new_mflags &= ~MATCHFLG_INCLUDE; | |
683 | s += 2; | |
684 | } else if (*s == '+' && s[1] == ' ') { | |
685 | new_mflags |= MATCHFLG_INCLUDE; | |
686 | s += 2; | |
664cf327 | 687 | } else if (*s == '!') |
b6f06b8e WD |
688 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
689 | } else { | |
a1ac8edd | 690 | char ch = 0, *mods = ""; |
6dfd07d0 | 691 | switch (*s) { |
a1ac8edd | 692 | case 'c': |
345e0988 | 693 | if ((s = RULE_STRCMP(s, "clear")) != NULL) |
a1ac8edd WD |
694 | ch = '!'; |
695 | break; | |
696 | case 'd': | |
345e0988 | 697 | if ((s = RULE_STRCMP(s, "dir-merge")) != NULL) |
a1ac8edd WD |
698 | ch = ':'; |
699 | break; | |
700 | case 'e': | |
345e0988 | 701 | if ((s = RULE_STRCMP(s, "exclude")) != NULL) |
a1ac8edd WD |
702 | ch = '-'; |
703 | break; | |
ed243f8c WD |
704 | case 'h': |
705 | if ((s = RULE_STRCMP(s, "hide")) != NULL) | |
706 | ch = 'H'; | |
707 | break; | |
a1ac8edd | 708 | case 'i': |
345e0988 | 709 | if ((s = RULE_STRCMP(s, "include")) != NULL) |
a1ac8edd WD |
710 | ch = '+'; |
711 | break; | |
712 | case 'm': | |
345e0988 | 713 | if ((s = RULE_STRCMP(s, "merge")) != NULL) |
a1ac8edd WD |
714 | ch = '.'; |
715 | break; | |
ed243f8c WD |
716 | case 'p': |
717 | if ((s = RULE_STRCMP(s, "protect")) != NULL) | |
718 | ch = 'P'; | |
719 | break; | |
720 | case 'r': | |
721 | if ((s = RULE_STRCMP(s, "risk")) != NULL) | |
722 | ch = 'R'; | |
723 | break; | |
724 | case 's': | |
725 | if ((s = RULE_STRCMP(s, "show")) != NULL) | |
726 | ch = 'S'; | |
727 | break; | |
a1ac8edd WD |
728 | default: |
729 | ch = *s; | |
64b761c1 WD |
730 | if (s[1] == ',') |
731 | s++; | |
a1ac8edd WD |
732 | break; |
733 | } | |
734 | switch (ch) { | |
6dfd07d0 | 735 | case ':': |
b6f06b8e WD |
736 | new_mflags |= MATCHFLG_PERDIR_MERGE |
737 | | MATCHFLG_FINISH_SETUP; | |
6dfd07d0 WD |
738 | /* FALL THROUGH */ |
739 | case '.': | |
b6f06b8e WD |
740 | new_mflags |= MATCHFLG_MERGE_FILE; |
741 | mods = MODIFIERS_INCL_EXCL MODIFIERS_MERGE_FILE; | |
6dfd07d0 WD |
742 | break; |
743 | case '+': | |
b6f06b8e | 744 | new_mflags |= MATCHFLG_INCLUDE; |
bf39270e | 745 | /* FALL THROUGH */ |
6dfd07d0 | 746 | case '-': |
b6f06b8e | 747 | mods = MODIFIERS_INCL_EXCL; |
6dfd07d0 | 748 | break; |
ed243f8c WD |
749 | case 'S': |
750 | new_mflags |= MATCHFLG_INCLUDE; | |
751 | /* FALL THROUGH */ | |
752 | case 'H': | |
753 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
754 | mods = MODIFIERS_HIDE_PROTECT; | |
755 | break; | |
756 | case 'R': | |
757 | new_mflags |= MATCHFLG_INCLUDE; | |
758 | /* FALL THROUGH */ | |
759 | case 'P': | |
760 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
761 | mods = MODIFIERS_HIDE_PROTECT; | |
762 | break; | |
6dfd07d0 | 763 | case '!': |
b6f06b8e | 764 | new_mflags |= MATCHFLG_CLEAR_LIST; |
6dfd07d0 WD |
765 | mods = NULL; |
766 | break; | |
767 | default: | |
ac1cb938 | 768 | rprintf(FERROR, "Unknown filter rule: `%s'\n", p); |
6dfd07d0 WD |
769 | exit_cleanup(RERR_SYNTAX); |
770 | } | |
bf39270e | 771 | while (mods && *++s && *s != ' ' && *s != '_') { |
6dfd07d0 | 772 | if (strchr(mods, *s) == NULL) { |
b6f06b8e | 773 | if (mflags & MATCHFLG_WORD_SPLIT && isspace(*s)) { |
6dfd07d0 WD |
774 | s--; |
775 | break; | |
776 | } | |
b6f06b8e | 777 | invalid: |
6dfd07d0 | 778 | rprintf(FERROR, |
b6f06b8e | 779 | "invalid modifier sequence at '%c' in filter rule: %s\n", |
6dfd07d0 WD |
780 | *s, p); |
781 | exit_cleanup(RERR_SYNTAX); | |
782 | } | |
783 | switch (*s) { | |
784 | case '-': | |
b6f06b8e WD |
785 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
786 | goto invalid; | |
787 | new_mflags |= MATCHFLG_NO_PREFIXES; | |
6dfd07d0 WD |
788 | break; |
789 | case '+': | |
b6f06b8e WD |
790 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
791 | goto invalid; | |
792 | new_mflags |= MATCHFLG_NO_PREFIXES | |
793 | | MATCHFLG_INCLUDE; | |
6dfd07d0 | 794 | break; |
bf39270e | 795 | case '/': |
b6f06b8e | 796 | new_mflags |= MATCHFLG_ABS_PATH; |
bf39270e | 797 | break; |
f2ae9e85 | 798 | case '!': |
b6f06b8e | 799 | new_mflags |= MATCHFLG_NEGATE; |
f2ae9e85 | 800 | break; |
6dfd07d0 | 801 | case 'C': |
b6f06b8e WD |
802 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
803 | goto invalid; | |
b6f06b8e WD |
804 | new_mflags |= MATCHFLG_NO_PREFIXES |
805 | | MATCHFLG_WORD_SPLIT | |
fdc79501 WD |
806 | | MATCHFLG_NO_INHERIT |
807 | | MATCHFLG_CVS_IGNORE; | |
6dfd07d0 WD |
808 | break; |
809 | case 'e': | |
b6f06b8e | 810 | new_mflags |= MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
811 | break; |
812 | case 'n': | |
b6f06b8e | 813 | new_mflags |= MATCHFLG_NO_INHERIT; |
6dfd07d0 | 814 | break; |
ed243f8c WD |
815 | case 'r': |
816 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
817 | break; | |
818 | case 's': | |
819 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
820 | break; | |
0b2901b7 | 821 | case 'w': |
b6f06b8e | 822 | new_mflags |= MATCHFLG_WORD_SPLIT; |
6dfd07d0 WD |
823 | break; |
824 | } | |
825 | } | |
826 | if (*s) | |
827 | s++; | |
6dfd07d0 WD |
828 | } |
829 | ||
b6f06b8e | 830 | if (mflags & MATCHFLG_WORD_SPLIT) { |
fdc79501 | 831 | const uchar *cp = s; |
96d3590a WD |
832 | /* Token ends at whitespace or the end of the string. */ |
833 | while (!isspace(*cp) && *cp != '\0') | |
834 | cp++; | |
835 | len = cp - s; | |
836 | } else | |
0eeb1cf8 | 837 | len = strlen((char*)s); |
96d3590a | 838 | |
b6f06b8e | 839 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
35a388b1 WD |
840 | if (!(mflags & MATCHFLG_NO_PREFIXES) |
841 | && !(xflags & XFLG_OLD_PREFIXES) && len) { | |
6dfd07d0 WD |
842 | rprintf(FERROR, |
843 | "'!' rule has trailing characters: %s\n", p); | |
844 | exit_cleanup(RERR_SYNTAX); | |
845 | } | |
846 | if (len > 1) | |
b6f06b8e | 847 | new_mflags &= ~MATCHFLG_CLEAR_LIST; |
fdc79501 | 848 | } else if (!len && !(new_mflags & MATCHFLG_CVS_IGNORE)) { |
6dfd07d0 WD |
849 | rprintf(FERROR, "unexpected end of filter rule: %s\n", p); |
850 | exit_cleanup(RERR_SYNTAX); | |
851 | } | |
852 | ||
96d3590a | 853 | *len_ptr = len; |
b6f06b8e | 854 | *mflags_ptr = new_mflags; |
96d3590a | 855 | return (const char *)s; |
f8f72644 WD |
856 | } |
857 | ||
858 | ||
46db1850 WD |
859 | static char default_cvsignore[] = |
860 | /* These default ignored items come from the CVS manual. */ | |
861 | "RCS SCCS CVS CVS.adm RCSLOG cvslog.* tags TAGS" | |
862 | " .make.state .nse_depinfo *~ #* .#* ,* _$* *$" | |
863 | " *.old *.bak *.BAK *.orig *.rej .del-*" | |
864 | " *.a *.olb *.o *.obj *.so *.exe" | |
865 | " *.Z *.elc *.ln core" | |
866 | /* The rest we added to suit ourself. */ | |
867 | " .svn/"; | |
868 | ||
869 | static void get_cvs_excludes(uint32 mflags) | |
870 | { | |
871 | char *p, fname[MAXPATHLEN]; | |
872 | static int initialized = 0; | |
873 | ||
874 | if (initialized) | |
875 | return; | |
876 | initialized = 1; | |
877 | ||
878 | parse_rule(&cvs_filter_list, default_cvsignore, mflags, 0); | |
879 | ||
880 | p = module_id >= 0 && lp_use_chroot(module_id) ? "/" : getenv("HOME"); | |
881 | if (p && pathjoin(fname, MAXPATHLEN, p, ".cvsignore") < MAXPATHLEN) | |
882 | parse_filter_file(&cvs_filter_list, fname, mflags, 0); | |
883 | ||
884 | parse_rule(&cvs_filter_list, getenv("CVSIGNORE"), mflags, 0); | |
885 | } | |
886 | ||
887 | ||
fdc79501 WD |
888 | void parse_rule(struct filter_list_struct *listp, const char *pattern, |
889 | uint32 mflags, int xflags) | |
c627d613 | 890 | { |
fdc79501 WD |
891 | unsigned int pat_len; |
892 | uint32 new_mflags; | |
6dfd07d0 | 893 | const char *cp, *p; |
5be7fa93 | 894 | |
f8f72644 | 895 | if (!pattern) |
5e7dbaca | 896 | return; |
f8f72644 | 897 | |
b2aa573b | 898 | while (1) { |
6dfd07d0 | 899 | /* Remember that the returned string is NOT '\0' terminated! */ |
fdc79501 | 900 | cp = parse_rule_tok(pattern, mflags, xflags, |
b6f06b8e | 901 | &pat_len, &new_mflags); |
6dfd07d0 | 902 | if (!cp) |
b2aa573b | 903 | break; |
6dfd07d0 | 904 | if (pat_len >= MAXPATHLEN) { |
7842418b | 905 | rprintf(FERROR, "discarding over-long filter: %s\n", |
6dfd07d0 WD |
906 | cp); |
907 | continue; | |
908 | } | |
909 | pattern = cp + pat_len; | |
5e972dcf | 910 | |
b6f06b8e | 911 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
de91e757 WD |
912 | if (verbose > 2) { |
913 | rprintf(FINFO, | |
7842418b | 914 | "[%s] clearing filter list%s\n", |
de91e757 WD |
915 | who_am_i(), listp->debug_type); |
916 | } | |
7842418b | 917 | clear_filter_list(listp); |
5e972dcf WD |
918 | continue; |
919 | } | |
b2aa573b | 920 | |
b6f06b8e | 921 | if (new_mflags & MATCHFLG_MERGE_FILE) { |
fdc79501 WD |
922 | unsigned int len; |
923 | if (!pat_len) { | |
924 | cp = ".cvsignore"; | |
925 | pat_len = 10; | |
926 | } | |
927 | len = pat_len; | |
b6f06b8e | 928 | if (new_mflags & MATCHFLG_EXCLUDE_SELF) { |
6dfd07d0 WD |
929 | const char *name = strrchr(cp, '/'); |
930 | if (name) | |
931 | len -= ++name - cp; | |
932 | else | |
933 | name = cp; | |
fdc79501 | 934 | add_rule(listp, name, len, 0, 0); |
b6f06b8e | 935 | new_mflags &= ~MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
936 | len = pat_len; |
937 | } | |
b6f06b8e | 938 | if (new_mflags & MATCHFLG_PERDIR_MERGE) { |
6dfd07d0 | 939 | if (parent_dirscan) { |
b6f06b8e WD |
940 | if (!(p = parse_merge_name(cp, &len, |
941 | module_dirlen))) | |
6dfd07d0 | 942 | continue; |
fdc79501 | 943 | add_rule(listp, p, len, new_mflags, 0); |
6dfd07d0 WD |
944 | continue; |
945 | } | |
946 | } else { | |
6dfd07d0 WD |
947 | if (!(p = parse_merge_name(cp, &len, 0))) |
948 | continue; | |
fdc79501 WD |
949 | parse_filter_file(listp, p, new_mflags, |
950 | XFLG_FATAL_ERRORS); | |
6dfd07d0 WD |
951 | continue; |
952 | } | |
f8f72644 | 953 | } |
6dfd07d0 | 954 | |
fdc79501 WD |
955 | add_rule(listp, cp, pat_len, new_mflags, xflags); |
956 | ||
957 | if (new_mflags & MATCHFLG_CVS_IGNORE | |
958 | && !(new_mflags & MATCHFLG_MERGE_FILE)) | |
46db1850 | 959 | get_cvs_excludes(new_mflags); |
8c35542d | 960 | } |
c627d613 AT |
961 | } |
962 | ||
c627d613 | 963 | |
fdc79501 WD |
964 | void parse_filter_file(struct filter_list_struct *listp, const char *fname, |
965 | uint32 mflags, int xflags) | |
c627d613 | 966 | { |
5e7dbaca | 967 | FILE *fp; |
3fac51e2 | 968 | char line[BIGPATHBUFLEN]; |
7cd72c79 | 969 | char *eob = line + sizeof line - 1; |
b6f06b8e | 970 | int word_split = mflags & MATCHFLG_WORD_SPLIT; |
ccdff3eb | 971 | |
5be7fa93 WD |
972 | if (!fname || !*fname) |
973 | return; | |
974 | ||
5a016db9 WD |
975 | if (*fname != '-' || fname[1] || am_server) { |
976 | if (server_filter_list.head) { | |
977 | strlcpy(line, fname, sizeof line); | |
978 | clean_fname(line, 1); | |
979 | if (check_filter(&server_filter_list, line, 0) < 0) | |
980 | fp = NULL; | |
981 | else | |
982 | fp = fopen(line, "rb"); | |
983 | } else | |
984 | fp = fopen(fname, "rb"); | |
985 | } else | |
5e7dbaca | 986 | fp = stdin; |
bf39270e WD |
987 | |
988 | if (verbose > 2) { | |
fdc79501 | 989 | rprintf(FINFO, "[%s] parse_filter_file(%s,%x,%x)%s\n", |
45c49b52 | 990 | who_am_i(), fname, mflags, xflags, |
bf39270e WD |
991 | fp ? "" : " [not found]"); |
992 | } | |
993 | ||
5e7dbaca | 994 | if (!fp) { |
f8f72644 | 995 | if (xflags & XFLG_FATAL_ERRORS) { |
a039749b | 996 | rsyserr(FERROR, errno, |
6dfd07d0 | 997 | "failed to open %sclude file %s", |
b6f06b8e | 998 | mflags & MATCHFLG_INCLUDE ? "in" : "ex", |
45c49b52 | 999 | fname); |
65417579 | 1000 | exit_cleanup(RERR_FILEIO); |
2b6b4d53 | 1001 | } |
5be7fa93 | 1002 | return; |
2b6b4d53 | 1003 | } |
6dfd07d0 WD |
1004 | dirbuf[dirbuf_len] = '\0'; |
1005 | ||
ccdff3eb | 1006 | while (1) { |
5e7dbaca | 1007 | char *s = line; |
619d21ff | 1008 | int ch, overflow = 0; |
ccdff3eb | 1009 | while (1) { |
5e7dbaca | 1010 | if ((ch = getc(fp)) == EOF) { |
61e16468 WD |
1011 | if (ferror(fp) && errno == EINTR) { |
1012 | clearerr(fp); | |
ccdff3eb | 1013 | continue; |
61e16468 | 1014 | } |
ccdff3eb WD |
1015 | break; |
1016 | } | |
40d38dc0 WD |
1017 | if (word_split && isspace(ch)) |
1018 | break; | |
ccdff3eb WD |
1019 | if (eol_nulls? !ch : (ch == '\n' || ch == '\r')) |
1020 | break; | |
1021 | if (s < eob) | |
1022 | *s++ = ch; | |
619d21ff WD |
1023 | else |
1024 | overflow = 1; | |
1025 | } | |
1026 | if (overflow) { | |
7842418b | 1027 | rprintf(FERROR, "discarding over-long filter: %s...\n", line); |
619d21ff | 1028 | s = line; |
ccdff3eb WD |
1029 | } |
1030 | *s = '\0'; | |
7f0feb4d WD |
1031 | /* Skip an empty token and (when line parsing) comments. */ |
1032 | if (*line && (word_split || (*line != ';' && *line != '#'))) | |
fdc79501 | 1033 | parse_rule(listp, line, mflags, xflags); |
5e7dbaca | 1034 | if (ch == EOF) |
ccdff3eb | 1035 | break; |
2b6b4d53 | 1036 | } |
5e7dbaca | 1037 | fclose(fp); |
c627d613 AT |
1038 | } |
1039 | ||
a261103c | 1040 | /* If the "for_xfer" flag is set, the prefix is made compatible with the |
fdc79501 WD |
1041 | * current protocol_version (if possible) or a NULL is returned (if not |
1042 | * possible). */ | |
a261103c | 1043 | char *get_rule_prefix(int match_flags, const char *pat, int for_xfer, |
fdc79501 | 1044 | unsigned int *plen_ptr) |
417b5999 WD |
1045 | { |
1046 | static char buf[MAX_RULE_PREFIX+1]; | |
1047 | char *op = buf; | |
2217b30a | 1048 | int legal_len = for_xfer && protocol_version < 29 ? 1 : MAX_RULE_PREFIX-1; |
417b5999 WD |
1049 | |
1050 | if (match_flags & MATCHFLG_PERDIR_MERGE) { | |
fdc79501 WD |
1051 | if (legal_len == 1) |
1052 | return NULL; | |
417b5999 | 1053 | *op++ = ':'; |
fdc79501 WD |
1054 | } else if (match_flags & MATCHFLG_INCLUDE) |
1055 | *op++ = '+'; | |
1056 | else if (legal_len != 1 | |
1057 | || ((*pat == '-' || *pat == '+') && pat[1] == ' ')) | |
1058 | *op++ = '-'; | |
1059 | else | |
1060 | legal_len = 0; | |
1061 | ||
fdc79501 WD |
1062 | if (match_flags & MATCHFLG_CVS_IGNORE) |
1063 | *op++ = 'C'; | |
1064 | else { | |
417b5999 WD |
1065 | if (match_flags & MATCHFLG_NO_INHERIT) |
1066 | *op++ = 'n'; | |
d09e800a WD |
1067 | if (match_flags & MATCHFLG_WORD_SPLIT) |
1068 | *op++ = 'w'; | |
417b5999 WD |
1069 | if (match_flags & MATCHFLG_NO_PREFIXES) { |
1070 | if (match_flags & MATCHFLG_INCLUDE) | |
1071 | *op++ = '+'; | |
1072 | else | |
1073 | *op++ = '-'; | |
1074 | } | |
417b5999 | 1075 | } |
46db1850 WD |
1076 | if (match_flags & MATCHFLG_EXCLUDE_SELF) |
1077 | *op++ = 'e'; | |
ed243f8c WD |
1078 | if (match_flags & MATCHFLG_SENDER_SIDE |
1079 | && (!for_xfer || protocol_version >= 29)) | |
1080 | *op++ = 's'; | |
1081 | if (match_flags & MATCHFLG_RECEIVER_SIDE | |
1082 | && (!for_xfer || protocol_version >= 29 | |
1083 | || (delete_excluded && am_sender))) | |
1084 | *op++ = 'r'; | |
448797a1 WD |
1085 | if (op - buf > legal_len) |
1086 | return NULL; | |
2217b30a WD |
1087 | if (legal_len) |
1088 | *op++ = ' '; | |
417b5999 WD |
1089 | *op = '\0'; |
1090 | if (plen_ptr) | |
1091 | *plen_ptr = op - buf; | |
417b5999 WD |
1092 | return buf; |
1093 | } | |
c627d613 | 1094 | |
fdc79501 | 1095 | static void send_rules(int f_out, struct filter_list_struct *flp) |
c627d613 | 1096 | { |
ed243f8c | 1097 | struct filter_struct *ent, *prev = NULL; |
25cf8893 | 1098 | |
fdc79501 | 1099 | for (ent = flp->head; ent; ent = ent->next) { |
417b5999 | 1100 | unsigned int len, plen, dlen; |
ed243f8c | 1101 | int elide = 0; |
417b5999 | 1102 | char *p; |
2fb139c1 | 1103 | |
ed243f8c WD |
1104 | if (ent->match_flags & MATCHFLG_SENDER_SIDE) |
1105 | elide = am_sender ? 1 : -1; | |
1106 | if (ent->match_flags & MATCHFLG_RECEIVER_SIDE) | |
1107 | elide = elide ? 0 : am_sender ? -1 : 1; | |
1108 | else if (delete_excluded && !elide) | |
1109 | elide = am_sender ? 1 : -1; | |
1110 | if (elide < 0) { | |
1111 | if (prev) | |
1112 | prev->next = ent->next; | |
1113 | else | |
1114 | flp->head = ent->next; | |
1115 | } else | |
1116 | prev = ent; | |
1117 | if (elide > 0) | |
1118 | continue; | |
fdc79501 WD |
1119 | if (ent->match_flags & MATCHFLG_CVS_IGNORE |
1120 | && !(ent->match_flags & MATCHFLG_MERGE_FILE)) { | |
98e47414 | 1121 | int f = am_sender || protocol_version < 29 ? f_out : -2; |
ed243f8c | 1122 | send_rules(f, &cvs_filter_list); |
98e47414 | 1123 | if (f == f_out) |
417b5999 | 1124 | continue; |
fdc79501 WD |
1125 | } |
1126 | p = get_rule_prefix(ent->match_flags, ent->pattern, 1, &plen); | |
1127 | if (!p) { | |
417b5999 | 1128 | rprintf(FERROR, |
fdc79501 | 1129 | "filter rules are too modern for remote rsync.\n"); |
417b5999 | 1130 | exit_cleanup(RERR_SYNTAX); |
5f5be796 | 1131 | } |
ed243f8c WD |
1132 | if (f_out < 0) |
1133 | continue; | |
fdc79501 | 1134 | len = strlen(ent->pattern); |
417b5999 | 1135 | dlen = ent->match_flags & MATCHFLG_DIRECTORY ? 1 : 0; |
fdc79501 WD |
1136 | if (!(plen + len + dlen)) |
1137 | continue; | |
1138 | write_int(f_out, plen + len + dlen); | |
417b5999 | 1139 | if (plen) |
fdc79501 WD |
1140 | write_buf(f_out, p, plen); |
1141 | write_buf(f_out, ent->pattern, len); | |
417b5999 | 1142 | if (dlen) |
fdc79501 | 1143 | write_byte(f_out, '/'); |
0f2ac855 | 1144 | } |
ed243f8c | 1145 | flp->tail = prev; |
c627d613 AT |
1146 | } |
1147 | ||
fdc79501 WD |
1148 | /* This is only called by the client. */ |
1149 | void send_filter_list(int f_out) | |
1150 | { | |
d5782b52 WD |
1151 | int receiver_wants_list = prune_empty_dirs |
1152 | || (delete_mode && (!delete_excluded || protocol_version >= 29)); | |
448797a1 WD |
1153 | |
1154 | if (local_server || (am_sender && !receiver_wants_list)) | |
fdc79501 WD |
1155 | f_out = -1; |
1156 | if (cvs_exclude && am_sender) { | |
1157 | if (protocol_version >= 29) | |
1158 | parse_rule(&filter_list, ":C", 0, 0); | |
1159 | parse_rule(&filter_list, "-C", 0, 0); | |
1160 | } | |
c627d613 | 1161 | |
fdc79501 WD |
1162 | /* This is a complete hack - blame Rusty. FIXME! |
1163 | * Remove this hack when older rsyncs (below 2.6.4) are gone. */ | |
1164 | if (list_only == 1 && !recurse) | |
1165 | parse_rule(&filter_list, "/*/*", MATCHFLG_NO_PREFIXES, 0); | |
1166 | ||
ed243f8c WD |
1167 | send_rules(f_out, &filter_list); |
1168 | ||
1169 | if (f_out >= 0) | |
fdc79501 | 1170 | write_int(f_out, 0); |
fdc79501 WD |
1171 | |
1172 | if (cvs_exclude) { | |
1173 | if (!am_sender || protocol_version < 29) | |
1174 | parse_rule(&filter_list, ":C", 0, 0); | |
1175 | if (!am_sender) | |
1176 | parse_rule(&filter_list, "-C", 0, 0); | |
1177 | } | |
1178 | } | |
1179 | ||
1180 | /* This is only called by the server. */ | |
1181 | void recv_filter_list(int f_in) | |
c627d613 | 1182 | { |
3fac51e2 | 1183 | char line[BIGPATHBUFLEN]; |
fdc79501 | 1184 | int xflags = protocol_version >= 29 ? 0 : XFLG_OLD_PREFIXES; |
d5782b52 | 1185 | int receiver_wants_list = prune_empty_dirs |
e257c6c2 WD |
1186 | || (delete_mode |
1187 | && (!delete_excluded || protocol_version >= 29)); | |
fdc79501 WD |
1188 | unsigned int len; |
1189 | ||
448797a1 | 1190 | if (!local_server && (am_sender || receiver_wants_list)) { |
fdc79501 WD |
1191 | while ((len = read_int(f_in)) != 0) { |
1192 | if (len >= sizeof line) | |
a1f99493 | 1193 | overflow_exit("recv_rules"); |
fdc79501 WD |
1194 | read_sbuf(f_in, line, len); |
1195 | parse_rule(&filter_list, line, 0, xflags); | |
1196 | } | |
1197 | } | |
9dd891bb | 1198 | |
fdc79501 | 1199 | if (cvs_exclude) { |
1412da7c | 1200 | if (local_server || am_sender || protocol_version < 29) |
fdc79501 | 1201 | parse_rule(&filter_list, ":C", 0, 0); |
1412da7c | 1202 | if (local_server || am_sender) |
fdc79501 | 1203 | parse_rule(&filter_list, "-C", 0, 0); |
651443a7 | 1204 | } |
ed243f8c WD |
1205 | |
1206 | if (local_server) /* filter out any rules that aren't for us. */ | |
1207 | send_rules(-1, &filter_list); | |
651443a7 | 1208 | } |