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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; |
fdc79501 WD |
37 | extern int delete_mode; |
38 | extern int delete_excluded; | |
39 | extern int cvs_exclude; | |
6dfd07d0 WD |
40 | extern int sanitize_paths; |
41 | extern int protocol_version; | |
bf39270e | 42 | extern int module_id; |
40d38dc0 WD |
43 | |
44 | extern char curr_dir[]; | |
6dfd07d0 WD |
45 | extern unsigned int curr_dir_len; |
46 | extern unsigned int module_dirlen; | |
c627d613 | 47 | |
7842418b | 48 | struct filter_list_struct filter_list = { 0, 0, "" }; |
fdc79501 WD |
49 | struct filter_list_struct cvs_filter_list = { 0, 0, " [cvsignore]" }; |
50 | struct filter_list_struct server_filter_list = { 0, 0, " [server]" }; | |
c627d613 | 51 | |
6dfd07d0 | 52 | /* Need room enough for ":MODS " prefix plus some room to grow. */ |
7842418b | 53 | #define MAX_RULE_PREFIX (16) |
6dfd07d0 | 54 | |
d727f0ff | 55 | #define MODIFIERS_MERGE_FILE "-+Cenw" |
ed243f8c WD |
56 | #define MODIFIERS_INCL_EXCL "/!Crs" |
57 | #define MODIFIERS_HIDE_PROTECT "/!" | |
b6f06b8e | 58 | |
7842418b | 59 | /* The dirbuf is set by push_local_filters() to the current subdirectory |
6dfd07d0 WD |
60 | * relative to curr_dir that is being processed. The path always has a |
61 | * trailing slash appended, and the variable dirbuf_len contains the length | |
62 | * of this path prefix. The path is always absolute. */ | |
63 | static char dirbuf[MAXPATHLEN+1]; | |
64 | static unsigned int dirbuf_len = 0; | |
65 | static int dirbuf_depth; | |
66 | ||
67 | /* This is True when we're scanning parent dirs for per-dir merge-files. */ | |
68 | static BOOL parent_dirscan = False; | |
69 | ||
70 | /* This array contains a list of all the currently active per-dir merge | |
71 | * files. This makes it easier to save the appropriate values when we | |
72 | * "push" down into each subdirectory. */ | |
7842418b | 73 | static struct filter_struct **mergelist_parents; |
6dfd07d0 WD |
74 | static int mergelist_cnt = 0; |
75 | static int mergelist_size = 0; | |
76 | ||
7842418b | 77 | /* Each filter_list_struct describes a singly-linked list by keeping track |
6dfd07d0 WD |
78 | * of both the head and tail pointers. The list is slightly unusual in that |
79 | * a parent-dir's content can be appended to the end of the local list in a | |
80 | * special way: the last item in the local list has its "next" pointer set | |
81 | * to point to the inherited list, but the local list's tail pointer points | |
82 | * at the end of the local list. Thus, if the local list is empty, the head | |
83 | * will be pointing at the inherited content but the tail will be NULL. To | |
84 | * help you visualize this, here are the possible list arrangements: | |
85 | * | |
86 | * Completely Empty Local Content Only | |
87 | * ================================== ==================================== | |
88 | * head -> NULL head -> Local1 -> Local2 -> NULL | |
89 | * tail -> NULL tail -------------^ | |
90 | * | |
91 | * Inherited Content Only Both Local and Inherited Content | |
92 | * ================================== ==================================== | |
93 | * head -> Parent1 -> Parent2 -> NULL head -> L1 -> L2 -> P1 -> P2 -> NULL | |
94 | * tail -> NULL tail ---------^ | |
95 | * | |
96 | * This means that anyone wanting to traverse the whole list to use it just | |
97 | * needs to start at the head and use the "next" pointers until it goes | |
98 | * NULL. To add new local content, we insert the item after the tail item | |
99 | * and update the tail (obviously, if "tail" was NULL, we insert it at the | |
100 | * head). To clear the local list, WE MUST NOT FREE THE INHERITED CONTENT | |
101 | * because it is shared between the current list and our parent list(s). | |
102 | * The easiest way to handle this is to simply truncate the list after the | |
103 | * tail item and then free the local list from the head. When inheriting | |
7842418b | 104 | * the list for a new local dir, we just save off the filter_list_struct |
6dfd07d0 WD |
105 | * values (so we can pop back to them later) and set the tail to NULL. |
106 | */ | |
107 | ||
7842418b | 108 | static void free_filter(struct filter_struct *ex) |
6dfd07d0 WD |
109 | { |
110 | if (ex->match_flags & MATCHFLG_PERDIR_MERGE) { | |
111 | free(ex->u.mergelist->debug_type); | |
112 | free(ex->u.mergelist); | |
113 | mergelist_cnt--; | |
114 | } | |
115 | free(ex->pattern); | |
116 | free(ex); | |
117 | } | |
118 | ||
7842418b | 119 | /* Build a filter structure given a filter pattern. The value in "pat" |
6dfd07d0 | 120 | * is not null-terminated. */ |
fdc79501 WD |
121 | static void add_rule(struct filter_list_struct *listp, const char *pat, |
122 | unsigned int pat_len, uint32 mflags, int xflags) | |
c627d613 | 123 | { |
7842418b | 124 | struct filter_struct *ret; |
f8f72644 | 125 | const char *cp; |
5e972dcf | 126 | unsigned int ex_len; |
c627d613 | 127 | |
6dfd07d0 | 128 | if (verbose > 2) { |
fdc79501 WD |
129 | rprintf(FINFO, "[%s] add_rule(%s%.*s%s)%s\n", |
130 | who_am_i(), get_rule_prefix(mflags, pat, 0, NULL), | |
131 | (int)pat_len, pat, | |
132 | (mflags & MATCHFLG_DIRECTORY) ? "/" : "", | |
6dfd07d0 WD |
133 | listp->debug_type); |
134 | } | |
135 | ||
6d7b3d52 WD |
136 | /* This flag also indicates that we're reading a list that |
137 | * needs to be filtered now, not post-filtered later. */ | |
138 | if (xflags & XFLG_ANCHORED2ABS) { | |
139 | uint32 mf = mflags & (MATCHFLG_RECEIVER_SIDE|MATCHFLG_SENDER_SIDE); | |
140 | if (am_sender) { | |
141 | if (mf == MATCHFLG_RECEIVER_SIDE) | |
142 | return; | |
143 | } else { | |
144 | if (mf == MATCHFLG_SENDER_SIDE) | |
145 | return; | |
146 | } | |
147 | } | |
148 | ||
fdc79501 WD |
149 | if (!(ret = new(struct filter_struct))) |
150 | out_of_memory("add_rule"); | |
5f5be796 | 151 | memset(ret, 0, sizeof ret[0]); |
2b6b4d53 | 152 | |
bf39270e WD |
153 | if (xflags & XFLG_ANCHORED2ABS && *pat == '/' |
154 | && !(mflags & (MATCHFLG_ABS_PATH | MATCHFLG_MERGE_FILE))) { | |
155 | mflags |= MATCHFLG_ABS_PATH; | |
156 | ex_len = dirbuf_len - module_dirlen - 1; | |
6dfd07d0 | 157 | } else |
f8f72644 | 158 | ex_len = 0; |
fdc79501 WD |
159 | if (!(ret->pattern = new_array(char, ex_len + pat_len + 1))) |
160 | out_of_memory("add_rule"); | |
f8f72644 | 161 | if (ex_len) |
6dfd07d0 | 162 | memcpy(ret->pattern, dirbuf + module_dirlen, ex_len); |
5e972dcf | 163 | strlcpy(ret->pattern + ex_len, pat, pat_len + 1); |
f8f72644 WD |
164 | pat_len += ex_len; |
165 | ||
166 | if (strpbrk(ret->pattern, "*[?")) { | |
5e972dcf | 167 | mflags |= MATCHFLG_WILD; |
96d3590a | 168 | if ((cp = strstr(ret->pattern, "**")) != NULL) { |
5e972dcf | 169 | mflags |= MATCHFLG_WILD2; |
170381c0 | 170 | /* If the pattern starts with **, note that. */ |
96d3590a | 171 | if (cp == ret->pattern) |
5e972dcf | 172 | mflags |= MATCHFLG_WILD2_PREFIX; |
0f2ac855 | 173 | } |
2bca43f6 | 174 | } |
c627d613 | 175 | |
5be7fa93 WD |
176 | if (pat_len > 1 && ret->pattern[pat_len-1] == '/') { |
177 | ret->pattern[pat_len-1] = 0; | |
5e972dcf | 178 | mflags |= MATCHFLG_DIRECTORY; |
2b6b4d53 | 179 | } |
c627d613 | 180 | |
6dfd07d0 | 181 | if (mflags & MATCHFLG_PERDIR_MERGE) { |
7842418b | 182 | struct filter_list_struct *lp; |
6dfd07d0 WD |
183 | unsigned int len; |
184 | int i; | |
185 | ||
186 | if ((cp = strrchr(ret->pattern, '/')) != NULL) | |
187 | cp++; | |
188 | else | |
189 | cp = ret->pattern; | |
190 | ||
191 | /* If the local merge file was already mentioned, don't | |
192 | * add it again. */ | |
193 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b | 194 | struct filter_struct *ex = mergelist_parents[i]; |
6dfd07d0 WD |
195 | const char *s = strrchr(ex->pattern, '/'); |
196 | if (s) | |
bf39270e | 197 | s++; |
6dfd07d0 | 198 | else |
bf39270e | 199 | s = ex->pattern; |
6dfd07d0 WD |
200 | len = strlen(s); |
201 | if (len == pat_len - (cp - ret->pattern) | |
202 | && memcmp(s, cp, len) == 0) { | |
7842418b | 203 | free_filter(ret); |
6dfd07d0 WD |
204 | return; |
205 | } | |
206 | } | |
207 | ||
7842418b | 208 | if (!(lp = new_array(struct filter_list_struct, 1))) |
fdc79501 | 209 | out_of_memory("add_rule"); |
6dfd07d0 | 210 | lp->head = lp->tail = NULL; |
fdc79501 WD |
211 | if (asprintf(&lp->debug_type, " [per-dir %s]", cp) < 0) |
212 | out_of_memory("add_rule"); | |
6dfd07d0 WD |
213 | ret->u.mergelist = lp; |
214 | ||
215 | if (mergelist_cnt == mergelist_size) { | |
216 | mergelist_size += 5; | |
217 | mergelist_parents = realloc_array(mergelist_parents, | |
7842418b | 218 | struct filter_struct *, |
6dfd07d0 WD |
219 | mergelist_size); |
220 | if (!mergelist_parents) | |
fdc79501 | 221 | out_of_memory("add_rule"); |
6dfd07d0 WD |
222 | } |
223 | mergelist_parents[mergelist_cnt++] = ret; | |
224 | } else { | |
225 | for (cp = ret->pattern; (cp = strchr(cp, '/')) != NULL; cp++) | |
226 | ret->u.slash_cnt++; | |
227 | } | |
0944563e | 228 | |
c1b29492 WD |
229 | ret->match_flags = mflags; |
230 | ||
6dfd07d0 WD |
231 | if (!listp->tail) { |
232 | ret->next = listp->head; | |
b2aa573b | 233 | listp->head = listp->tail = ret; |
6dfd07d0 WD |
234 | } else { |
235 | ret->next = listp->tail->next; | |
b2aa573b WD |
236 | listp->tail->next = ret; |
237 | listp->tail = ret; | |
238 | } | |
2b6b4d53 AT |
239 | } |
240 | ||
7842418b | 241 | static void clear_filter_list(struct filter_list_struct *listp) |
2b6b4d53 | 242 | { |
6dfd07d0 | 243 | if (listp->tail) { |
7842418b | 244 | struct filter_struct *ent, *next; |
6dfd07d0 WD |
245 | /* Truncate any inherited items from the local list. */ |
246 | listp->tail->next = NULL; | |
247 | /* Now free everything that is left. */ | |
248 | for (ent = listp->head; ent; ent = next) { | |
249 | next = ent->next; | |
7842418b | 250 | free_filter(ent); |
6dfd07d0 WD |
251 | } |
252 | } | |
253 | ||
254 | listp->head = listp->tail = NULL; | |
2b6b4d53 | 255 | } |
c627d613 | 256 | |
6dfd07d0 WD |
257 | /* This returns an expanded (absolute) filename for the merge-file name if |
258 | * the name has any slashes in it OR if the parent_dirscan var is True; | |
259 | * otherwise it returns the original merge_file name. If the len_ptr value | |
260 | * is non-NULL the merge_file name is limited by the referenced length | |
261 | * value and will be updated with the length of the resulting name. We | |
262 | * always return a name that is null terminated, even if the merge_file | |
263 | * name was not. */ | |
264 | static char *parse_merge_name(const char *merge_file, unsigned int *len_ptr, | |
265 | unsigned int prefix_skip) | |
5be7fa93 | 266 | { |
6dfd07d0 WD |
267 | static char buf[MAXPATHLEN]; |
268 | char *fn, tmpbuf[MAXPATHLEN]; | |
269 | unsigned int fn_len; | |
270 | ||
271 | if (!parent_dirscan && *merge_file != '/') { | |
272 | /* Return the name unchanged it doesn't have any slashes. */ | |
273 | if (len_ptr) { | |
274 | const char *p = merge_file + *len_ptr; | |
275 | while (--p > merge_file && *p != '/') {} | |
276 | if (p == merge_file) { | |
277 | strlcpy(buf, merge_file, *len_ptr + 1); | |
278 | return buf; | |
279 | } | |
280 | } else if (strchr(merge_file, '/') == NULL) | |
281 | return (char *)merge_file; | |
282 | } | |
5be7fa93 | 283 | |
6dfd07d0 WD |
284 | fn = *merge_file == '/' ? buf : tmpbuf; |
285 | if (sanitize_paths) { | |
286 | const char *r = prefix_skip ? "/" : NULL; | |
287 | /* null-terminate the name if it isn't already */ | |
288 | if (len_ptr && merge_file[*len_ptr]) { | |
289 | char *to = fn == buf ? tmpbuf : buf; | |
290 | strlcpy(to, merge_file, *len_ptr + 1); | |
291 | merge_file = to; | |
292 | } | |
293 | if (!sanitize_path(fn, merge_file, r, dirbuf_depth)) { | |
294 | rprintf(FERROR, "merge-file name overflows: %s\n", | |
a6126d67 | 295 | safe_fname(merge_file)); |
6dfd07d0 WD |
296 | return NULL; |
297 | } | |
298 | } else { | |
299 | strlcpy(fn, merge_file, len_ptr ? *len_ptr + 1 : MAXPATHLEN); | |
300 | clean_fname(fn, 1); | |
b2aa573b | 301 | } |
6dfd07d0 WD |
302 | |
303 | fn_len = strlen(fn); | |
304 | if (fn == buf) | |
305 | goto done; | |
306 | ||
307 | if (dirbuf_len + fn_len >= MAXPATHLEN) { | |
a6126d67 WD |
308 | rprintf(FERROR, "merge-file name overflows: %s\n", |
309 | safe_fname(fn)); | |
6dfd07d0 WD |
310 | return NULL; |
311 | } | |
312 | memcpy(buf, dirbuf + prefix_skip, dirbuf_len - prefix_skip); | |
313 | memcpy(buf + dirbuf_len - prefix_skip, fn, fn_len + 1); | |
314 | fn_len = clean_fname(buf, 1); | |
315 | ||
316 | done: | |
317 | if (len_ptr) | |
318 | *len_ptr = fn_len; | |
319 | return buf; | |
320 | } | |
5be7fa93 | 321 | |
6dfd07d0 | 322 | /* Sets the dirbuf and dirbuf_len values. */ |
7842418b | 323 | void set_filter_dir(const char *dir, unsigned int dirlen) |
6dfd07d0 WD |
324 | { |
325 | unsigned int len; | |
326 | if (*dir != '/') { | |
327 | memcpy(dirbuf, curr_dir, curr_dir_len); | |
328 | dirbuf[curr_dir_len] = '/'; | |
329 | len = curr_dir_len + 1; | |
330 | if (len + dirlen >= MAXPATHLEN) | |
331 | dirlen = 0; | |
332 | } else | |
333 | len = 0; | |
334 | memcpy(dirbuf + len, dir, dirlen); | |
335 | dirbuf[dirlen + len] = '\0'; | |
336 | dirbuf_len = clean_fname(dirbuf, 1); | |
337 | if (dirbuf_len > 1 && dirbuf[dirbuf_len-1] == '.' | |
338 | && dirbuf[dirbuf_len-2] == '/') | |
339 | dirbuf_len -= 2; | |
340 | if (dirbuf_len != 1) | |
341 | dirbuf[dirbuf_len++] = '/'; | |
342 | dirbuf[dirbuf_len] = '\0'; | |
343 | if (sanitize_paths) | |
344 | dirbuf_depth = count_dir_elements(dirbuf + module_dirlen); | |
345 | } | |
346 | ||
347 | /* This routine takes a per-dir merge-file entry and finishes its setup. | |
348 | * If the name has a path portion then we check to see if it refers to a | |
349 | * parent directory of the first transfer dir. If it does, we scan all the | |
350 | * dirs from that point through the parent dir of the transfer dir looking | |
351 | * for the per-dir merge-file in each one. */ | |
7842418b | 352 | static BOOL setup_merge_file(struct filter_struct *ex, |
b6f06b8e | 353 | struct filter_list_struct *lp) |
6dfd07d0 WD |
354 | { |
355 | char buf[MAXPATHLEN]; | |
356 | char *x, *y, *pat = ex->pattern; | |
357 | unsigned int len; | |
358 | ||
359 | if (!(x = parse_merge_name(pat, NULL, 0)) || *x != '/') | |
360 | return 0; | |
361 | ||
362 | y = strrchr(x, '/'); | |
363 | *y = '\0'; | |
364 | ex->pattern = strdup(y+1); | |
365 | if (!*x) | |
366 | x = "/"; | |
367 | if (*x == '/') | |
368 | strlcpy(buf, x, MAXPATHLEN); | |
369 | else | |
370 | pathjoin(buf, MAXPATHLEN, dirbuf, x); | |
371 | ||
372 | len = clean_fname(buf, 1); | |
373 | if (len != 1 && len < MAXPATHLEN-1) { | |
374 | buf[len++] = '/'; | |
375 | buf[len] = '\0'; | |
376 | } | |
377 | /* This ensures that the specified dir is a parent of the transfer. */ | |
378 | for (x = buf, y = dirbuf; *x && *x == *y; x++, y++) {} | |
379 | if (*x) | |
380 | y += strlen(y); /* nope -- skip the scan */ | |
381 | ||
382 | parent_dirscan = True; | |
383 | while (*y) { | |
384 | char save[MAXPATHLEN]; | |
385 | strlcpy(save, y, MAXPATHLEN); | |
386 | *y = '\0'; | |
387 | dirbuf_len = y - dirbuf; | |
388 | strlcpy(x, ex->pattern, MAXPATHLEN - (x - buf)); | |
fdc79501 | 389 | parse_filter_file(lp, buf, ex->match_flags, XFLG_ANCHORED2ABS); |
6dfd07d0 WD |
390 | if (ex->match_flags & MATCHFLG_NO_INHERIT) |
391 | lp->head = NULL; | |
392 | lp->tail = NULL; | |
393 | strlcpy(y, save, MAXPATHLEN); | |
394 | while ((*x++ = *y++) != '/') {} | |
395 | } | |
396 | parent_dirscan = False; | |
397 | free(pat); | |
398 | return 1; | |
399 | } | |
400 | ||
401 | /* Each time rsync changes to a new directory it call this function to | |
402 | * handle all the per-dir merge-files. The "dir" value is the current path | |
403 | * relative to curr_dir (which might not be null-terminated). We copy it | |
404 | * into dirbuf so that we can easily append a file name on the end. */ | |
7842418b | 405 | void *push_local_filters(const char *dir, unsigned int dirlen) |
6dfd07d0 | 406 | { |
7842418b | 407 | struct filter_list_struct *ap, *push; |
6dfd07d0 WD |
408 | int i; |
409 | ||
7842418b | 410 | set_filter_dir(dir, dirlen); |
6dfd07d0 | 411 | |
a2b371cd WD |
412 | if (!mergelist_cnt) |
413 | return NULL; | |
414 | ||
7842418b | 415 | push = new_array(struct filter_list_struct, mergelist_cnt); |
6dfd07d0 | 416 | if (!push) |
7842418b | 417 | out_of_memory("push_local_filters"); |
6dfd07d0 WD |
418 | |
419 | for (i = 0, ap = push; i < mergelist_cnt; i++) { | |
420 | memcpy(ap++, mergelist_parents[i]->u.mergelist, | |
7842418b | 421 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
422 | } |
423 | ||
fdc79501 | 424 | /* Note: parse_filter_file() might increase mergelist_cnt, so keep |
6dfd07d0 WD |
425 | * this loop separate from the above loop. */ |
426 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b WD |
427 | struct filter_struct *ex = mergelist_parents[i]; |
428 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
429 | |
430 | if (verbose > 2) { | |
7842418b | 431 | rprintf(FINFO, "[%s] pushing filter list%s\n", |
6dfd07d0 WD |
432 | who_am_i(), lp->debug_type); |
433 | } | |
434 | ||
435 | lp->tail = NULL; /* Switch any local rules to inherited. */ | |
436 | if (ex->match_flags & MATCHFLG_NO_INHERIT) | |
437 | lp->head = NULL; | |
6dfd07d0 WD |
438 | |
439 | if (ex->match_flags & MATCHFLG_FINISH_SETUP) { | |
440 | ex->match_flags &= ~MATCHFLG_FINISH_SETUP; | |
b6f06b8e | 441 | if (setup_merge_file(ex, lp)) |
7842418b | 442 | set_filter_dir(dir, dirlen); |
6dfd07d0 WD |
443 | } |
444 | ||
445 | if (strlcpy(dirbuf + dirbuf_len, ex->pattern, | |
b6f06b8e | 446 | MAXPATHLEN - dirbuf_len) < MAXPATHLEN - dirbuf_len) { |
fdc79501 WD |
447 | parse_filter_file(lp, dirbuf, ex->match_flags, |
448 | XFLG_ANCHORED2ABS); | |
b6f06b8e | 449 | } else { |
6dfd07d0 WD |
450 | io_error |= IOERR_GENERAL; |
451 | rprintf(FINFO, | |
7842418b | 452 | "cannot add local filter rules in long-named directory: %s\n", |
6dfd07d0 WD |
453 | full_fname(dirbuf)); |
454 | } | |
455 | dirbuf[dirbuf_len] = '\0'; | |
456 | } | |
457 | ||
458 | return (void*)push; | |
459 | } | |
460 | ||
7842418b | 461 | void pop_local_filters(void *mem) |
6dfd07d0 | 462 | { |
7842418b | 463 | struct filter_list_struct *ap, *pop = (struct filter_list_struct*)mem; |
6dfd07d0 WD |
464 | int i; |
465 | ||
466 | for (i = mergelist_cnt; i-- > 0; ) { | |
7842418b WD |
467 | struct filter_struct *ex = mergelist_parents[i]; |
468 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
469 | |
470 | if (verbose > 2) { | |
7842418b | 471 | rprintf(FINFO, "[%s] popping filter list%s\n", |
6dfd07d0 WD |
472 | who_am_i(), lp->debug_type); |
473 | } | |
474 | ||
7842418b | 475 | clear_filter_list(lp); |
6dfd07d0 WD |
476 | } |
477 | ||
a2b371cd WD |
478 | if (!pop) |
479 | return; | |
480 | ||
6dfd07d0 WD |
481 | for (i = 0, ap = pop; i < mergelist_cnt; i++) { |
482 | memcpy(mergelist_parents[i]->u.mergelist, ap++, | |
7842418b | 483 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
484 | } |
485 | ||
486 | free(pop); | |
5be7fa93 WD |
487 | } |
488 | ||
7842418b | 489 | static int rule_matches(char *name, struct filter_struct *ex, int name_is_dir) |
2b6b4d53 | 490 | { |
9f186578 | 491 | char *p, full_name[MAXPATHLEN]; |
0f2ac855 | 492 | int match_start = 0; |
f2ae9e85 | 493 | int ret_match = ex->match_flags & MATCHFLG_NEGATE ? 0 : 1; |
2b6b4d53 AT |
494 | char *pattern = ex->pattern; |
495 | ||
9f186578 WD |
496 | if (!*name) |
497 | return 0; | |
498 | ||
170381c0 WD |
499 | /* If the pattern does not have any slashes AND it does not have |
500 | * a "**" (which could match a slash), then we just match the | |
501 | * name portion of the path. */ | |
6dfd07d0 | 502 | if (!ex->u.slash_cnt && !(ex->match_flags & MATCHFLG_WILD2)) { |
5be7fa93 WD |
503 | if ((p = strrchr(name,'/')) != NULL) |
504 | name = p+1; | |
505 | } | |
9f186578 | 506 | else if (ex->match_flags & MATCHFLG_ABS_PATH && *name != '/' |
6dfd07d0 WD |
507 | && curr_dir_len > module_dirlen + 1) { |
508 | pathjoin(full_name, sizeof full_name, | |
509 | curr_dir + module_dirlen + 1, name); | |
5be7fa93 WD |
510 | name = full_name; |
511 | } | |
2b6b4d53 | 512 | |
5e972dcf | 513 | if (ex->match_flags & MATCHFLG_DIRECTORY && !name_is_dir) |
f2ae9e85 | 514 | return !ret_match; |
2b6b4d53 | 515 | |
170381c0 | 516 | if (*pattern == '/') { |
2b6b4d53 AT |
517 | match_start = 1; |
518 | pattern++; | |
170381c0 WD |
519 | if (*name == '/') |
520 | name++; | |
2b6b4d53 AT |
521 | } |
522 | ||
170381c0 | 523 | if (ex->match_flags & MATCHFLG_WILD) { |
170381c0 WD |
524 | /* A non-anchored match with an infix slash and no "**" |
525 | * needs to match the last slash_cnt+1 name elements. */ | |
6dfd07d0 | 526 | if (!match_start && ex->u.slash_cnt |
5e972dcf | 527 | && !(ex->match_flags & MATCHFLG_WILD2)) { |
6dfd07d0 | 528 | int cnt = ex->u.slash_cnt + 1; |
170381c0 WD |
529 | for (p = name + strlen(name) - 1; p >= name; p--) { |
530 | if (*p == '/' && !--cnt) | |
531 | break; | |
532 | } | |
533 | name = p+1; | |
534 | } | |
fe332038 | 535 | if (wildmatch(pattern, name)) |
f2ae9e85 | 536 | return ret_match; |
170381c0 WD |
537 | if (ex->match_flags & MATCHFLG_WILD2_PREFIX) { |
538 | /* If the **-prefixed pattern has a '/' as the next | |
539 | * character, then try to match the rest of the | |
540 | * pattern at the root. */ | |
fe332038 | 541 | if (pattern[2] == '/' && wildmatch(pattern+3, name)) |
f2ae9e85 | 542 | return ret_match; |
c36cd317 | 543 | } |
170381c0 WD |
544 | else if (!match_start && ex->match_flags & MATCHFLG_WILD2) { |
545 | /* A non-anchored match with an infix or trailing "**" | |
546 | * (but not a prefixed "**") needs to try matching | |
547 | * after every slash. */ | |
548 | while ((name = strchr(name, '/')) != NULL) { | |
549 | name++; | |
fe332038 | 550 | if (wildmatch(pattern, name)) |
f2ae9e85 | 551 | return ret_match; |
170381c0 WD |
552 | } |
553 | } | |
554 | } else if (match_start) { | |
555 | if (strcmp(name,pattern) == 0) | |
f2ae9e85 | 556 | return ret_match; |
2b6b4d53 AT |
557 | } else { |
558 | int l1 = strlen(name); | |
ea2111d1 | 559 | int l2 = strlen(pattern); |
0f2ac855 | 560 | if (l2 <= l1 && |
ea2111d1 | 561 | strcmp(name+(l1-l2),pattern) == 0 && |
170381c0 | 562 | (l1==l2 || name[l1-(l2+1)] == '/')) { |
f2ae9e85 | 563 | return ret_match; |
c36cd317 | 564 | } |
2b6b4d53 AT |
565 | } |
566 | ||
f2ae9e85 | 567 | return !ret_match; |
c627d613 AT |
568 | } |
569 | ||
570 | ||
7842418b WD |
571 | static void report_filter_result(char const *name, |
572 | struct filter_struct const *ent, | |
573 | int name_is_dir, const char *type) | |
d567322f | 574 | { |
0f2ac855 | 575 | /* If a trailing slash is present to match only directories, |
fdc79501 | 576 | * then it is stripped out by add_rule(). So as a special |
0f2ac855 WD |
577 | * case we add it back in here. */ |
578 | ||
ea847c62 | 579 | if (verbose >= 2) { |
6dfd07d0 | 580 | rprintf(FINFO, "[%s] %scluding %s %s because of pattern %s%s%s\n", |
5e972dcf WD |
581 | who_am_i(), |
582 | ent->match_flags & MATCHFLG_INCLUDE ? "in" : "ex", | |
6dfd07d0 WD |
583 | name_is_dir ? "directory" : "file", name, ent->pattern, |
584 | ent->match_flags & MATCHFLG_DIRECTORY ? "/" : "", type); | |
ea847c62 | 585 | } |
d567322f MP |
586 | } |
587 | ||
588 | ||
589 | /* | |
a6536635 WD |
590 | * Return -1 if file "name" is defined to be excluded by the specified |
591 | * exclude list, 1 if it is included, and 0 if it was not matched. | |
d567322f | 592 | */ |
7842418b | 593 | int check_filter(struct filter_list_struct *listp, char *name, int name_is_dir) |
c627d613 | 594 | { |
7842418b | 595 | struct filter_struct *ent; |
c627d613 | 596 | |
b2aa573b | 597 | for (ent = listp->head; ent; ent = ent->next) { |
6dfd07d0 | 598 | if (ent->match_flags & MATCHFLG_PERDIR_MERGE) { |
7842418b WD |
599 | int rc = check_filter(ent->u.mergelist, name, |
600 | name_is_dir); | |
6dfd07d0 WD |
601 | if (rc) |
602 | return rc; | |
603 | continue; | |
604 | } | |
fdc79501 WD |
605 | if (ent->match_flags & MATCHFLG_CVS_IGNORE) { |
606 | int rc = check_filter(&cvs_filter_list, name, | |
607 | name_is_dir); | |
608 | if (rc) | |
609 | return rc; | |
610 | continue; | |
611 | } | |
7842418b WD |
612 | if (rule_matches(name, ent, name_is_dir)) { |
613 | report_filter_result(name, ent, name_is_dir, | |
67340e95 | 614 | listp->debug_type); |
5e972dcf | 615 | return ent->match_flags & MATCHFLG_INCLUDE ? 1 : -1; |
0f2ac855 | 616 | } |
2b6b4d53 | 617 | } |
c627d613 | 618 | |
2b6b4d53 | 619 | return 0; |
c627d613 AT |
620 | } |
621 | ||
345e0988 | 622 | #define RULE_STRCMP(s,r) rule_strcmp((s), (r), sizeof (r) - 1) |
a1ac8edd | 623 | |
4adbb5f2 | 624 | static const uchar *rule_strcmp(const uchar *str, const char *rule, int rule_len) |
a1ac8edd | 625 | { |
4adbb5f2 | 626 | if (strncmp((char*)str, rule, rule_len) != 0) |
a1ac8edd WD |
627 | return NULL; |
628 | if (isspace(str[rule_len]) || str[rule_len] == '_' || !str[rule_len]) | |
629 | return str + rule_len - 1; | |
630 | if (str[rule_len] == ',') | |
631 | return str + rule_len; | |
632 | return NULL; | |
633 | } | |
c627d613 | 634 | |
f8f72644 WD |
635 | /* Get the next include/exclude arg from the string. The token will not |
636 | * be '\0' terminated, so use the returned length to limit the string. | |
637 | * Also, be sure to add this length to the returned pointer before passing | |
e425fbe8 | 638 | * it back to ask for the next token. This routine parses the "!" (list- |
b6f06b8e WD |
639 | * clearing) token and (depending on the mflags) the various prefixes. |
640 | * The *mflags_ptr value will be set on exit to the new MATCHFLG_* bits | |
641 | * for the current token. */ | |
fdc79501 WD |
642 | static const char *parse_rule_tok(const char *p, uint32 mflags, int xflags, |
643 | unsigned int *len_ptr, uint32 *mflags_ptr) | |
f8f72644 | 644 | { |
fdc79501 WD |
645 | const uchar *s = (const uchar *)p; |
646 | uint32 new_mflags; | |
647 | unsigned int len; | |
f8f72644 | 648 | |
b6f06b8e | 649 | if (mflags & MATCHFLG_WORD_SPLIT) { |
96d3590a WD |
650 | /* Skip over any initial whitespace. */ |
651 | while (isspace(*s)) | |
f8f72644 | 652 | s++; |
6dfd07d0 | 653 | /* Update to point to real start of rule. */ |
abca4eba | 654 | p = (const char *)s; |
f8f72644 | 655 | } |
6dfd07d0 WD |
656 | if (!*s) |
657 | return NULL; | |
658 | ||
b6f06b8e WD |
659 | new_mflags = mflags & MATCHFLGS_FROM_CONTAINER; |
660 | ||
661 | /* Figure out what kind of a filter rule "s" is pointing at. Note | |
662 | * that if MATCHFLG_NO_PREFIXES is set, the rule is either an include | |
663 | * or an exclude based on the inheritance of the MATCHFLG_INCLUDE | |
664 | * flag (above). XFLG_OLD_PREFIXES indicates a compatibility mode | |
665 | * for old include/exclude patterns where just "+ " and "- " are | |
666 | * allowed as optional prefixes. */ | |
667 | if (mflags & MATCHFLG_NO_PREFIXES) { | |
a1ac8edd | 668 | if (*s == '!' && mflags & MATCHFLG_CVS_IGNORE) |
b6f06b8e WD |
669 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
670 | } else if (xflags & XFLG_OLD_PREFIXES) { | |
671 | if (*s == '-' && s[1] == ' ') { | |
672 | new_mflags &= ~MATCHFLG_INCLUDE; | |
673 | s += 2; | |
674 | } else if (*s == '+' && s[1] == ' ') { | |
675 | new_mflags |= MATCHFLG_INCLUDE; | |
676 | s += 2; | |
664cf327 | 677 | } else if (*s == '!') |
b6f06b8e WD |
678 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
679 | } else { | |
a1ac8edd | 680 | char ch = 0, *mods = ""; |
6dfd07d0 | 681 | switch (*s) { |
a1ac8edd | 682 | case 'c': |
345e0988 | 683 | if ((s = RULE_STRCMP(s, "clear")) != NULL) |
a1ac8edd WD |
684 | ch = '!'; |
685 | break; | |
686 | case 'd': | |
345e0988 | 687 | if ((s = RULE_STRCMP(s, "dir-merge")) != NULL) |
a1ac8edd WD |
688 | ch = ':'; |
689 | break; | |
690 | case 'e': | |
345e0988 | 691 | if ((s = RULE_STRCMP(s, "exclude")) != NULL) |
a1ac8edd WD |
692 | ch = '-'; |
693 | break; | |
ed243f8c WD |
694 | case 'h': |
695 | if ((s = RULE_STRCMP(s, "hide")) != NULL) | |
696 | ch = 'H'; | |
697 | break; | |
a1ac8edd | 698 | case 'i': |
345e0988 | 699 | if ((s = RULE_STRCMP(s, "include")) != NULL) |
a1ac8edd WD |
700 | ch = '+'; |
701 | break; | |
702 | case 'm': | |
345e0988 | 703 | if ((s = RULE_STRCMP(s, "merge")) != NULL) |
a1ac8edd WD |
704 | ch = '.'; |
705 | break; | |
ed243f8c WD |
706 | case 'p': |
707 | if ((s = RULE_STRCMP(s, "protect")) != NULL) | |
708 | ch = 'P'; | |
709 | break; | |
710 | case 'r': | |
711 | if ((s = RULE_STRCMP(s, "risk")) != NULL) | |
712 | ch = 'R'; | |
713 | break; | |
714 | case 's': | |
715 | if ((s = RULE_STRCMP(s, "show")) != NULL) | |
716 | ch = 'S'; | |
717 | break; | |
a1ac8edd WD |
718 | default: |
719 | ch = *s; | |
64b761c1 WD |
720 | if (s[1] == ',') |
721 | s++; | |
a1ac8edd WD |
722 | break; |
723 | } | |
724 | switch (ch) { | |
6dfd07d0 | 725 | case ':': |
b6f06b8e WD |
726 | new_mflags |= MATCHFLG_PERDIR_MERGE |
727 | | MATCHFLG_FINISH_SETUP; | |
6dfd07d0 WD |
728 | /* FALL THROUGH */ |
729 | case '.': | |
b6f06b8e WD |
730 | new_mflags |= MATCHFLG_MERGE_FILE; |
731 | mods = MODIFIERS_INCL_EXCL MODIFIERS_MERGE_FILE; | |
6dfd07d0 WD |
732 | break; |
733 | case '+': | |
b6f06b8e | 734 | new_mflags |= MATCHFLG_INCLUDE; |
bf39270e | 735 | /* FALL THROUGH */ |
6dfd07d0 | 736 | case '-': |
b6f06b8e | 737 | mods = MODIFIERS_INCL_EXCL; |
6dfd07d0 | 738 | break; |
ed243f8c WD |
739 | case 'S': |
740 | new_mflags |= MATCHFLG_INCLUDE; | |
741 | /* FALL THROUGH */ | |
742 | case 'H': | |
743 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
744 | mods = MODIFIERS_HIDE_PROTECT; | |
745 | break; | |
746 | case 'R': | |
747 | new_mflags |= MATCHFLG_INCLUDE; | |
748 | /* FALL THROUGH */ | |
749 | case 'P': | |
750 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
751 | mods = MODIFIERS_HIDE_PROTECT; | |
752 | break; | |
6dfd07d0 | 753 | case '!': |
b6f06b8e | 754 | new_mflags |= MATCHFLG_CLEAR_LIST; |
6dfd07d0 WD |
755 | mods = NULL; |
756 | break; | |
757 | default: | |
ac1cb938 | 758 | rprintf(FERROR, "Unknown filter rule: `%s'\n", p); |
6dfd07d0 WD |
759 | exit_cleanup(RERR_SYNTAX); |
760 | } | |
bf39270e | 761 | while (mods && *++s && *s != ' ' && *s != '_') { |
6dfd07d0 | 762 | if (strchr(mods, *s) == NULL) { |
b6f06b8e | 763 | if (mflags & MATCHFLG_WORD_SPLIT && isspace(*s)) { |
6dfd07d0 WD |
764 | s--; |
765 | break; | |
766 | } | |
b6f06b8e | 767 | invalid: |
6dfd07d0 | 768 | rprintf(FERROR, |
b6f06b8e | 769 | "invalid modifier sequence at '%c' in filter rule: %s\n", |
6dfd07d0 WD |
770 | *s, p); |
771 | exit_cleanup(RERR_SYNTAX); | |
772 | } | |
773 | switch (*s) { | |
774 | case '-': | |
b6f06b8e WD |
775 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
776 | goto invalid; | |
777 | new_mflags |= MATCHFLG_NO_PREFIXES; | |
6dfd07d0 WD |
778 | break; |
779 | case '+': | |
b6f06b8e WD |
780 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
781 | goto invalid; | |
782 | new_mflags |= MATCHFLG_NO_PREFIXES | |
783 | | MATCHFLG_INCLUDE; | |
6dfd07d0 | 784 | break; |
bf39270e | 785 | case '/': |
b6f06b8e | 786 | new_mflags |= MATCHFLG_ABS_PATH; |
bf39270e | 787 | break; |
f2ae9e85 | 788 | case '!': |
b6f06b8e | 789 | new_mflags |= MATCHFLG_NEGATE; |
f2ae9e85 | 790 | break; |
6dfd07d0 | 791 | case 'C': |
b6f06b8e WD |
792 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
793 | goto invalid; | |
b6f06b8e WD |
794 | new_mflags |= MATCHFLG_NO_PREFIXES |
795 | | MATCHFLG_WORD_SPLIT | |
fdc79501 WD |
796 | | MATCHFLG_NO_INHERIT |
797 | | MATCHFLG_CVS_IGNORE; | |
6dfd07d0 WD |
798 | break; |
799 | case 'e': | |
b6f06b8e | 800 | new_mflags |= MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
801 | break; |
802 | case 'n': | |
b6f06b8e | 803 | new_mflags |= MATCHFLG_NO_INHERIT; |
6dfd07d0 | 804 | break; |
ed243f8c WD |
805 | case 'r': |
806 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
807 | break; | |
808 | case 's': | |
809 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
810 | break; | |
0b2901b7 | 811 | case 'w': |
b6f06b8e | 812 | new_mflags |= MATCHFLG_WORD_SPLIT; |
6dfd07d0 WD |
813 | break; |
814 | } | |
815 | } | |
816 | if (*s) | |
817 | s++; | |
6dfd07d0 WD |
818 | } |
819 | ||
b6f06b8e | 820 | if (mflags & MATCHFLG_WORD_SPLIT) { |
fdc79501 | 821 | const uchar *cp = s; |
96d3590a WD |
822 | /* Token ends at whitespace or the end of the string. */ |
823 | while (!isspace(*cp) && *cp != '\0') | |
824 | cp++; | |
825 | len = cp - s; | |
826 | } else | |
0eeb1cf8 | 827 | len = strlen((char*)s); |
96d3590a | 828 | |
b6f06b8e | 829 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
35a388b1 WD |
830 | if (!(mflags & MATCHFLG_NO_PREFIXES) |
831 | && !(xflags & XFLG_OLD_PREFIXES) && len) { | |
6dfd07d0 WD |
832 | rprintf(FERROR, |
833 | "'!' rule has trailing characters: %s\n", p); | |
834 | exit_cleanup(RERR_SYNTAX); | |
835 | } | |
836 | if (len > 1) | |
b6f06b8e | 837 | new_mflags &= ~MATCHFLG_CLEAR_LIST; |
fdc79501 | 838 | } else if (!len && !(new_mflags & MATCHFLG_CVS_IGNORE)) { |
6dfd07d0 WD |
839 | rprintf(FERROR, "unexpected end of filter rule: %s\n", p); |
840 | exit_cleanup(RERR_SYNTAX); | |
841 | } | |
842 | ||
96d3590a | 843 | *len_ptr = len; |
b6f06b8e | 844 | *mflags_ptr = new_mflags; |
96d3590a | 845 | return (const char *)s; |
f8f72644 WD |
846 | } |
847 | ||
848 | ||
46db1850 WD |
849 | static char default_cvsignore[] = |
850 | /* These default ignored items come from the CVS manual. */ | |
851 | "RCS SCCS CVS CVS.adm RCSLOG cvslog.* tags TAGS" | |
852 | " .make.state .nse_depinfo *~ #* .#* ,* _$* *$" | |
853 | " *.old *.bak *.BAK *.orig *.rej .del-*" | |
854 | " *.a *.olb *.o *.obj *.so *.exe" | |
855 | " *.Z *.elc *.ln core" | |
856 | /* The rest we added to suit ourself. */ | |
857 | " .svn/"; | |
858 | ||
859 | static void get_cvs_excludes(uint32 mflags) | |
860 | { | |
861 | char *p, fname[MAXPATHLEN]; | |
862 | static int initialized = 0; | |
863 | ||
864 | if (initialized) | |
865 | return; | |
866 | initialized = 1; | |
867 | ||
868 | parse_rule(&cvs_filter_list, default_cvsignore, mflags, 0); | |
869 | ||
870 | p = module_id >= 0 && lp_use_chroot(module_id) ? "/" : getenv("HOME"); | |
871 | if (p && pathjoin(fname, MAXPATHLEN, p, ".cvsignore") < MAXPATHLEN) | |
872 | parse_filter_file(&cvs_filter_list, fname, mflags, 0); | |
873 | ||
874 | parse_rule(&cvs_filter_list, getenv("CVSIGNORE"), mflags, 0); | |
875 | } | |
876 | ||
877 | ||
fdc79501 WD |
878 | void parse_rule(struct filter_list_struct *listp, const char *pattern, |
879 | uint32 mflags, int xflags) | |
c627d613 | 880 | { |
fdc79501 WD |
881 | unsigned int pat_len; |
882 | uint32 new_mflags; | |
6dfd07d0 | 883 | const char *cp, *p; |
5be7fa93 | 884 | |
f8f72644 | 885 | if (!pattern) |
5e7dbaca | 886 | return; |
f8f72644 | 887 | |
b2aa573b | 888 | while (1) { |
6dfd07d0 | 889 | /* Remember that the returned string is NOT '\0' terminated! */ |
fdc79501 | 890 | cp = parse_rule_tok(pattern, mflags, xflags, |
b6f06b8e | 891 | &pat_len, &new_mflags); |
6dfd07d0 | 892 | if (!cp) |
b2aa573b | 893 | break; |
6dfd07d0 | 894 | if (pat_len >= MAXPATHLEN) { |
7842418b | 895 | rprintf(FERROR, "discarding over-long filter: %s\n", |
6dfd07d0 WD |
896 | cp); |
897 | continue; | |
898 | } | |
899 | pattern = cp + pat_len; | |
5e972dcf | 900 | |
b6f06b8e | 901 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
de91e757 WD |
902 | if (verbose > 2) { |
903 | rprintf(FINFO, | |
7842418b | 904 | "[%s] clearing filter list%s\n", |
de91e757 WD |
905 | who_am_i(), listp->debug_type); |
906 | } | |
7842418b | 907 | clear_filter_list(listp); |
5e972dcf WD |
908 | continue; |
909 | } | |
b2aa573b | 910 | |
b6f06b8e | 911 | if (new_mflags & MATCHFLG_MERGE_FILE) { |
fdc79501 WD |
912 | unsigned int len; |
913 | if (!pat_len) { | |
914 | cp = ".cvsignore"; | |
915 | pat_len = 10; | |
916 | } | |
917 | len = pat_len; | |
b6f06b8e | 918 | if (new_mflags & MATCHFLG_EXCLUDE_SELF) { |
6dfd07d0 WD |
919 | const char *name = strrchr(cp, '/'); |
920 | if (name) | |
921 | len -= ++name - cp; | |
922 | else | |
923 | name = cp; | |
fdc79501 | 924 | add_rule(listp, name, len, 0, 0); |
b6f06b8e | 925 | new_mflags &= ~MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
926 | len = pat_len; |
927 | } | |
b6f06b8e | 928 | if (new_mflags & MATCHFLG_PERDIR_MERGE) { |
6dfd07d0 | 929 | if (parent_dirscan) { |
b6f06b8e WD |
930 | if (!(p = parse_merge_name(cp, &len, |
931 | module_dirlen))) | |
6dfd07d0 | 932 | continue; |
fdc79501 | 933 | add_rule(listp, p, len, new_mflags, 0); |
6dfd07d0 WD |
934 | continue; |
935 | } | |
936 | } else { | |
6dfd07d0 WD |
937 | if (!(p = parse_merge_name(cp, &len, 0))) |
938 | continue; | |
fdc79501 WD |
939 | parse_filter_file(listp, p, new_mflags, |
940 | XFLG_FATAL_ERRORS); | |
6dfd07d0 WD |
941 | continue; |
942 | } | |
f8f72644 | 943 | } |
6dfd07d0 | 944 | |
fdc79501 WD |
945 | add_rule(listp, cp, pat_len, new_mflags, xflags); |
946 | ||
947 | if (new_mflags & MATCHFLG_CVS_IGNORE | |
948 | && !(new_mflags & MATCHFLG_MERGE_FILE)) | |
46db1850 | 949 | get_cvs_excludes(new_mflags); |
8c35542d | 950 | } |
c627d613 AT |
951 | } |
952 | ||
c627d613 | 953 | |
fdc79501 WD |
954 | void parse_filter_file(struct filter_list_struct *listp, const char *fname, |
955 | uint32 mflags, int xflags) | |
c627d613 | 956 | { |
5e7dbaca | 957 | FILE *fp; |
3fac51e2 | 958 | char line[BIGPATHBUFLEN]; |
7cd72c79 | 959 | char *eob = line + sizeof line - 1; |
b6f06b8e | 960 | int word_split = mflags & MATCHFLG_WORD_SPLIT; |
ccdff3eb | 961 | |
5be7fa93 WD |
962 | if (!fname || !*fname) |
963 | return; | |
964 | ||
5a016db9 WD |
965 | if (*fname != '-' || fname[1] || am_server) { |
966 | if (server_filter_list.head) { | |
967 | strlcpy(line, fname, sizeof line); | |
968 | clean_fname(line, 1); | |
969 | if (check_filter(&server_filter_list, line, 0) < 0) | |
970 | fp = NULL; | |
971 | else | |
972 | fp = fopen(line, "rb"); | |
973 | } else | |
974 | fp = fopen(fname, "rb"); | |
975 | } else | |
5e7dbaca | 976 | fp = stdin; |
bf39270e WD |
977 | |
978 | if (verbose > 2) { | |
fdc79501 | 979 | rprintf(FINFO, "[%s] parse_filter_file(%s,%x,%x)%s\n", |
b6f06b8e | 980 | who_am_i(), safe_fname(fname), mflags, xflags, |
bf39270e WD |
981 | fp ? "" : " [not found]"); |
982 | } | |
983 | ||
5e7dbaca | 984 | if (!fp) { |
f8f72644 | 985 | if (xflags & XFLG_FATAL_ERRORS) { |
a039749b | 986 | rsyserr(FERROR, errno, |
6dfd07d0 | 987 | "failed to open %sclude file %s", |
b6f06b8e | 988 | mflags & MATCHFLG_INCLUDE ? "in" : "ex", |
6dfd07d0 | 989 | safe_fname(fname)); |
65417579 | 990 | exit_cleanup(RERR_FILEIO); |
2b6b4d53 | 991 | } |
5be7fa93 | 992 | return; |
2b6b4d53 | 993 | } |
6dfd07d0 WD |
994 | dirbuf[dirbuf_len] = '\0'; |
995 | ||
ccdff3eb | 996 | while (1) { |
5e7dbaca | 997 | char *s = line; |
619d21ff | 998 | int ch, overflow = 0; |
ccdff3eb | 999 | while (1) { |
5e7dbaca WD |
1000 | if ((ch = getc(fp)) == EOF) { |
1001 | if (ferror(fp) && errno == EINTR) | |
ccdff3eb WD |
1002 | continue; |
1003 | break; | |
1004 | } | |
40d38dc0 WD |
1005 | if (word_split && isspace(ch)) |
1006 | break; | |
ccdff3eb WD |
1007 | if (eol_nulls? !ch : (ch == '\n' || ch == '\r')) |
1008 | break; | |
1009 | if (s < eob) | |
1010 | *s++ = ch; | |
619d21ff WD |
1011 | else |
1012 | overflow = 1; | |
1013 | } | |
1014 | if (overflow) { | |
7842418b | 1015 | rprintf(FERROR, "discarding over-long filter: %s...\n", line); |
619d21ff | 1016 | s = line; |
ccdff3eb WD |
1017 | } |
1018 | *s = '\0'; | |
7f0feb4d WD |
1019 | /* Skip an empty token and (when line parsing) comments. */ |
1020 | if (*line && (word_split || (*line != ';' && *line != '#'))) | |
fdc79501 | 1021 | parse_rule(listp, line, mflags, xflags); |
5e7dbaca | 1022 | if (ch == EOF) |
ccdff3eb | 1023 | break; |
2b6b4d53 | 1024 | } |
5e7dbaca | 1025 | fclose(fp); |
c627d613 AT |
1026 | } |
1027 | ||
a261103c | 1028 | /* If the "for_xfer" flag is set, the prefix is made compatible with the |
fdc79501 WD |
1029 | * current protocol_version (if possible) or a NULL is returned (if not |
1030 | * possible). */ | |
a261103c | 1031 | char *get_rule_prefix(int match_flags, const char *pat, int for_xfer, |
fdc79501 | 1032 | unsigned int *plen_ptr) |
417b5999 WD |
1033 | { |
1034 | static char buf[MAX_RULE_PREFIX+1]; | |
1035 | char *op = buf; | |
2217b30a | 1036 | int legal_len = for_xfer && protocol_version < 29 ? 1 : MAX_RULE_PREFIX-1; |
417b5999 WD |
1037 | |
1038 | if (match_flags & MATCHFLG_PERDIR_MERGE) { | |
fdc79501 WD |
1039 | if (legal_len == 1) |
1040 | return NULL; | |
417b5999 | 1041 | *op++ = ':'; |
fdc79501 WD |
1042 | } else if (match_flags & MATCHFLG_INCLUDE) |
1043 | *op++ = '+'; | |
1044 | else if (legal_len != 1 | |
1045 | || ((*pat == '-' || *pat == '+') && pat[1] == ' ')) | |
1046 | *op++ = '-'; | |
1047 | else | |
1048 | legal_len = 0; | |
1049 | ||
fdc79501 WD |
1050 | if (match_flags & MATCHFLG_CVS_IGNORE) |
1051 | *op++ = 'C'; | |
1052 | else { | |
417b5999 WD |
1053 | if (match_flags & MATCHFLG_NO_INHERIT) |
1054 | *op++ = 'n'; | |
d09e800a WD |
1055 | if (match_flags & MATCHFLG_WORD_SPLIT) |
1056 | *op++ = 'w'; | |
417b5999 WD |
1057 | if (match_flags & MATCHFLG_NO_PREFIXES) { |
1058 | if (match_flags & MATCHFLG_INCLUDE) | |
1059 | *op++ = '+'; | |
1060 | else | |
1061 | *op++ = '-'; | |
1062 | } | |
417b5999 | 1063 | } |
46db1850 WD |
1064 | if (match_flags & MATCHFLG_EXCLUDE_SELF) |
1065 | *op++ = 'e'; | |
ed243f8c WD |
1066 | if (match_flags & MATCHFLG_SENDER_SIDE |
1067 | && (!for_xfer || protocol_version >= 29)) | |
1068 | *op++ = 's'; | |
1069 | if (match_flags & MATCHFLG_RECEIVER_SIDE | |
1070 | && (!for_xfer || protocol_version >= 29 | |
1071 | || (delete_excluded && am_sender))) | |
1072 | *op++ = 'r'; | |
448797a1 WD |
1073 | if (op - buf > legal_len) |
1074 | return NULL; | |
2217b30a WD |
1075 | if (legal_len) |
1076 | *op++ = ' '; | |
417b5999 WD |
1077 | *op = '\0'; |
1078 | if (plen_ptr) | |
1079 | *plen_ptr = op - buf; | |
417b5999 WD |
1080 | return buf; |
1081 | } | |
c627d613 | 1082 | |
fdc79501 | 1083 | static void send_rules(int f_out, struct filter_list_struct *flp) |
c627d613 | 1084 | { |
ed243f8c | 1085 | struct filter_struct *ent, *prev = NULL; |
25cf8893 | 1086 | |
fdc79501 | 1087 | for (ent = flp->head; ent; ent = ent->next) { |
417b5999 | 1088 | unsigned int len, plen, dlen; |
ed243f8c | 1089 | int elide = 0; |
417b5999 | 1090 | char *p; |
2fb139c1 | 1091 | |
ed243f8c WD |
1092 | if (ent->match_flags & MATCHFLG_SENDER_SIDE) |
1093 | elide = am_sender ? 1 : -1; | |
1094 | if (ent->match_flags & MATCHFLG_RECEIVER_SIDE) | |
1095 | elide = elide ? 0 : am_sender ? -1 : 1; | |
1096 | else if (delete_excluded && !elide) | |
1097 | elide = am_sender ? 1 : -1; | |
1098 | if (elide < 0) { | |
1099 | if (prev) | |
1100 | prev->next = ent->next; | |
1101 | else | |
1102 | flp->head = ent->next; | |
1103 | } else | |
1104 | prev = ent; | |
1105 | if (elide > 0) | |
1106 | continue; | |
fdc79501 WD |
1107 | if (ent->match_flags & MATCHFLG_CVS_IGNORE |
1108 | && !(ent->match_flags & MATCHFLG_MERGE_FILE)) { | |
98e47414 | 1109 | int f = am_sender || protocol_version < 29 ? f_out : -2; |
ed243f8c | 1110 | send_rules(f, &cvs_filter_list); |
98e47414 | 1111 | if (f == f_out) |
417b5999 | 1112 | continue; |
fdc79501 WD |
1113 | } |
1114 | p = get_rule_prefix(ent->match_flags, ent->pattern, 1, &plen); | |
1115 | if (!p) { | |
417b5999 | 1116 | rprintf(FERROR, |
fdc79501 | 1117 | "filter rules are too modern for remote rsync.\n"); |
417b5999 | 1118 | exit_cleanup(RERR_SYNTAX); |
5f5be796 | 1119 | } |
ed243f8c WD |
1120 | if (f_out < 0) |
1121 | continue; | |
fdc79501 | 1122 | len = strlen(ent->pattern); |
417b5999 | 1123 | dlen = ent->match_flags & MATCHFLG_DIRECTORY ? 1 : 0; |
fdc79501 WD |
1124 | if (!(plen + len + dlen)) |
1125 | continue; | |
1126 | write_int(f_out, plen + len + dlen); | |
417b5999 | 1127 | if (plen) |
fdc79501 WD |
1128 | write_buf(f_out, p, plen); |
1129 | write_buf(f_out, ent->pattern, len); | |
417b5999 | 1130 | if (dlen) |
fdc79501 | 1131 | write_byte(f_out, '/'); |
0f2ac855 | 1132 | } |
ed243f8c | 1133 | flp->tail = prev; |
c627d613 AT |
1134 | } |
1135 | ||
fdc79501 WD |
1136 | /* This is only called by the client. */ |
1137 | void send_filter_list(int f_out) | |
1138 | { | |
ed243f8c WD |
1139 | int receiver_wants_list = delete_mode |
1140 | && (!delete_excluded || protocol_version >= 29); | |
448797a1 WD |
1141 | |
1142 | if (local_server || (am_sender && !receiver_wants_list)) | |
fdc79501 WD |
1143 | f_out = -1; |
1144 | if (cvs_exclude && am_sender) { | |
1145 | if (protocol_version >= 29) | |
1146 | parse_rule(&filter_list, ":C", 0, 0); | |
1147 | parse_rule(&filter_list, "-C", 0, 0); | |
1148 | } | |
c627d613 | 1149 | |
fdc79501 WD |
1150 | /* This is a complete hack - blame Rusty. FIXME! |
1151 | * Remove this hack when older rsyncs (below 2.6.4) are gone. */ | |
1152 | if (list_only == 1 && !recurse) | |
1153 | parse_rule(&filter_list, "/*/*", MATCHFLG_NO_PREFIXES, 0); | |
1154 | ||
ed243f8c WD |
1155 | send_rules(f_out, &filter_list); |
1156 | ||
1157 | if (f_out >= 0) | |
fdc79501 | 1158 | write_int(f_out, 0); |
fdc79501 WD |
1159 | |
1160 | if (cvs_exclude) { | |
1161 | if (!am_sender || protocol_version < 29) | |
1162 | parse_rule(&filter_list, ":C", 0, 0); | |
1163 | if (!am_sender) | |
1164 | parse_rule(&filter_list, "-C", 0, 0); | |
1165 | } | |
1166 | } | |
1167 | ||
1168 | /* This is only called by the server. */ | |
1169 | void recv_filter_list(int f_in) | |
c627d613 | 1170 | { |
3fac51e2 | 1171 | char line[BIGPATHBUFLEN]; |
fdc79501 | 1172 | int xflags = protocol_version >= 29 ? 0 : XFLG_OLD_PREFIXES; |
ed243f8c WD |
1173 | int receiver_wants_list = delete_mode |
1174 | && (!delete_excluded || protocol_version >= 29); | |
fdc79501 WD |
1175 | unsigned int len; |
1176 | ||
448797a1 | 1177 | if (!local_server && (am_sender || receiver_wants_list)) { |
fdc79501 WD |
1178 | while ((len = read_int(f_in)) != 0) { |
1179 | if (len >= sizeof line) | |
a1f99493 | 1180 | overflow_exit("recv_rules"); |
fdc79501 WD |
1181 | read_sbuf(f_in, line, len); |
1182 | parse_rule(&filter_list, line, 0, xflags); | |
1183 | } | |
1184 | } | |
9dd891bb | 1185 | |
fdc79501 | 1186 | if (cvs_exclude) { |
1412da7c | 1187 | if (local_server || am_sender || protocol_version < 29) |
fdc79501 | 1188 | parse_rule(&filter_list, ":C", 0, 0); |
1412da7c | 1189 | if (local_server || am_sender) |
fdc79501 | 1190 | parse_rule(&filter_list, "-C", 0, 0); |
651443a7 | 1191 | } |
ed243f8c WD |
1192 | |
1193 | if (local_server) /* filter out any rules that aren't for us. */ | |
1194 | send_rules(-1, &filter_list); | |
651443a7 | 1195 | } |