Commit | Line | Data |
---|---|---|
0f78b815 WD |
1 | /* |
2 | * The filter include/exclude routines. | |
0f2ac855 | 3 | * |
0f78b815 WD |
4 | * Copyright (C) 1996-2001 Andrew Tridgell <tridge@samba.org> |
5 | * Copyright (C) 1996 Paul Mackerras | |
6 | * Copyright (C) 2002 Martin Pool | |
d3d07a5e | 7 | * Copyright (C) 2003-2008 Wayne Davison |
0f2ac855 | 8 | * |
07a874fd | 9 | * This program is free software; you can redistribute it and/or modify |
8e41b68e WD |
10 | * it under the terms of the GNU General Public License as published by |
11 | * the Free Software Foundation; either version 3 of the License, or | |
12 | * (at your option) any later version. | |
0f2ac855 | 13 | * |
07a874fd MP |
14 | * This program is distributed in the hope that it will be useful, |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
0f2ac855 | 18 | * |
e7c67065 | 19 | * You should have received a copy of the GNU General Public License along |
4fd842f9 | 20 | * with this program; if not, visit the http://fsf.org website. |
07a874fd | 21 | */ |
c627d613 | 22 | |
c627d613 AT |
23 | #include "rsync.h" |
24 | ||
5a016db9 | 25 | extern int am_server; |
fdc79501 | 26 | extern int am_sender; |
40d38dc0 | 27 | extern int eol_nulls; |
6dfd07d0 | 28 | extern int io_error; |
1412da7c | 29 | extern int local_server; |
d5782b52 | 30 | extern int prune_empty_dirs; |
ccdb23bb | 31 | extern int ignore_perishable; |
fdc79501 WD |
32 | extern int delete_mode; |
33 | extern int delete_excluded; | |
34 | extern int cvs_exclude; | |
6dfd07d0 WD |
35 | extern int sanitize_paths; |
36 | extern int protocol_version; | |
bf39270e | 37 | extern int module_id; |
40d38dc0 | 38 | |
b791d680 | 39 | extern char curr_dir[MAXPATHLEN]; |
6dfd07d0 WD |
40 | extern unsigned int curr_dir_len; |
41 | extern unsigned int module_dirlen; | |
c627d613 | 42 | |
7842418b | 43 | struct filter_list_struct filter_list = { 0, 0, "" }; |
c81a20fb | 44 | struct filter_list_struct cvs_filter_list = { 0, 0, " [global CVS]" }; |
819bfe45 | 45 | struct filter_list_struct daemon_filter_list = { 0, 0, " [daemon]" }; |
c627d613 | 46 | |
6dfd07d0 | 47 | /* Need room enough for ":MODS " prefix plus some room to grow. */ |
7842418b | 48 | #define MAX_RULE_PREFIX (16) |
6dfd07d0 | 49 | |
d727f0ff | 50 | #define MODIFIERS_MERGE_FILE "-+Cenw" |
ccdb23bb WD |
51 | #define MODIFIERS_INCL_EXCL "/!Crsp" |
52 | #define MODIFIERS_HIDE_PROTECT "/!p" | |
b6f06b8e | 53 | |
f5aeb6ff WD |
54 | #define SLASH_WILD3_SUFFIX "/***" |
55 | ||
7842418b | 56 | /* The dirbuf is set by push_local_filters() to the current subdirectory |
6dfd07d0 WD |
57 | * relative to curr_dir that is being processed. The path always has a |
58 | * trailing slash appended, and the variable dirbuf_len contains the length | |
59 | * of this path prefix. The path is always absolute. */ | |
60 | static char dirbuf[MAXPATHLEN+1]; | |
61 | static unsigned int dirbuf_len = 0; | |
62 | static int dirbuf_depth; | |
63 | ||
64 | /* This is True when we're scanning parent dirs for per-dir merge-files. */ | |
65 | static BOOL parent_dirscan = False; | |
66 | ||
67 | /* This array contains a list of all the currently active per-dir merge | |
68 | * files. This makes it easier to save the appropriate values when we | |
69 | * "push" down into each subdirectory. */ | |
7842418b | 70 | static struct filter_struct **mergelist_parents; |
6dfd07d0 WD |
71 | static int mergelist_cnt = 0; |
72 | static int mergelist_size = 0; | |
73 | ||
7842418b | 74 | /* Each filter_list_struct describes a singly-linked list by keeping track |
6dfd07d0 WD |
75 | * of both the head and tail pointers. The list is slightly unusual in that |
76 | * a parent-dir's content can be appended to the end of the local list in a | |
77 | * special way: the last item in the local list has its "next" pointer set | |
78 | * to point to the inherited list, but the local list's tail pointer points | |
79 | * at the end of the local list. Thus, if the local list is empty, the head | |
80 | * will be pointing at the inherited content but the tail will be NULL. To | |
81 | * help you visualize this, here are the possible list arrangements: | |
82 | * | |
83 | * Completely Empty Local Content Only | |
84 | * ================================== ==================================== | |
85 | * head -> NULL head -> Local1 -> Local2 -> NULL | |
86 | * tail -> NULL tail -------------^ | |
87 | * | |
88 | * Inherited Content Only Both Local and Inherited Content | |
89 | * ================================== ==================================== | |
90 | * head -> Parent1 -> Parent2 -> NULL head -> L1 -> L2 -> P1 -> P2 -> NULL | |
91 | * tail -> NULL tail ---------^ | |
92 | * | |
93 | * This means that anyone wanting to traverse the whole list to use it just | |
94 | * needs to start at the head and use the "next" pointers until it goes | |
95 | * NULL. To add new local content, we insert the item after the tail item | |
96 | * and update the tail (obviously, if "tail" was NULL, we insert it at the | |
97 | * head). To clear the local list, WE MUST NOT FREE THE INHERITED CONTENT | |
98 | * because it is shared between the current list and our parent list(s). | |
99 | * The easiest way to handle this is to simply truncate the list after the | |
100 | * tail item and then free the local list from the head. When inheriting | |
7842418b | 101 | * the list for a new local dir, we just save off the filter_list_struct |
6dfd07d0 WD |
102 | * values (so we can pop back to them later) and set the tail to NULL. |
103 | */ | |
104 | ||
7842418b | 105 | static void free_filter(struct filter_struct *ex) |
6dfd07d0 WD |
106 | { |
107 | if (ex->match_flags & MATCHFLG_PERDIR_MERGE) { | |
108 | free(ex->u.mergelist->debug_type); | |
109 | free(ex->u.mergelist); | |
110 | mergelist_cnt--; | |
111 | } | |
112 | free(ex->pattern); | |
113 | free(ex); | |
114 | } | |
115 | ||
7842418b | 116 | /* Build a filter structure given a filter pattern. The value in "pat" |
6dfd07d0 | 117 | * is not null-terminated. */ |
fdc79501 WD |
118 | static void add_rule(struct filter_list_struct *listp, const char *pat, |
119 | unsigned int pat_len, uint32 mflags, int xflags) | |
c627d613 | 120 | { |
7842418b | 121 | struct filter_struct *ret; |
f8f72644 | 122 | const char *cp; |
f5aeb6ff | 123 | unsigned int pre_len, suf_len, slash_cnt = 0; |
c627d613 | 124 | |
951e826b | 125 | if (DEBUG_GTE(FILTER, 2)) { |
fdc79501 WD |
126 | rprintf(FINFO, "[%s] add_rule(%s%.*s%s)%s\n", |
127 | who_am_i(), get_rule_prefix(mflags, pat, 0, NULL), | |
128 | (int)pat_len, pat, | |
129 | (mflags & MATCHFLG_DIRECTORY) ? "/" : "", | |
6dfd07d0 WD |
130 | listp->debug_type); |
131 | } | |
132 | ||
4fc8140a | 133 | /* These flags also indicate that we're reading a list that |
6d7b3d52 | 134 | * needs to be filtered now, not post-filtered later. */ |
4fc8140a | 135 | if (xflags & (XFLG_ANCHORED2ABS|XFLG_ABS_IF_SLASH)) { |
6d7b3d52 WD |
136 | uint32 mf = mflags & (MATCHFLG_RECEIVER_SIDE|MATCHFLG_SENDER_SIDE); |
137 | if (am_sender) { | |
138 | if (mf == MATCHFLG_RECEIVER_SIDE) | |
139 | return; | |
140 | } else { | |
141 | if (mf == MATCHFLG_SENDER_SIDE) | |
142 | return; | |
143 | } | |
144 | } | |
145 | ||
7e4b6b7b | 146 | if (!(ret = new0(struct filter_struct))) |
fdc79501 | 147 | out_of_memory("add_rule"); |
2b6b4d53 | 148 | |
4c74d44d WD |
149 | if (pat_len > 1 && pat[pat_len-1] == '/') { |
150 | pat_len--; | |
151 | mflags |= MATCHFLG_DIRECTORY; | |
152 | } | |
153 | ||
154 | for (cp = pat; cp < pat + pat_len; cp++) { | |
155 | if (*cp == '/') | |
156 | slash_cnt++; | |
157 | } | |
158 | ||
4fc8140a WD |
159 | if (!(mflags & (MATCHFLG_ABS_PATH | MATCHFLG_MERGE_FILE)) |
160 | && ((xflags & (XFLG_ANCHORED2ABS|XFLG_ABS_IF_SLASH) && *pat == '/') | |
4c74d44d | 161 | || (xflags & XFLG_ABS_IF_SLASH && slash_cnt))) { |
bf39270e | 162 | mflags |= MATCHFLG_ABS_PATH; |
4fc8140a | 163 | if (*pat == '/') |
4a86fbcd | 164 | pre_len = dirbuf_len - module_dirlen - 1; |
4fc8140a | 165 | else |
4a86fbcd | 166 | pre_len = 0; |
6dfd07d0 | 167 | } else |
4a86fbcd | 168 | pre_len = 0; |
4c74d44d | 169 | |
f5aeb6ff WD |
170 | /* The daemon wants dir-exclude rules to get an appended "/" + "***". */ |
171 | if (xflags & XFLG_DIR2WILD3 | |
172 | && BITS_SETnUNSET(mflags, MATCHFLG_DIRECTORY, MATCHFLG_INCLUDE)) { | |
173 | mflags &= ~MATCHFLG_DIRECTORY; | |
174 | suf_len = sizeof SLASH_WILD3_SUFFIX - 1; | |
175 | } else | |
176 | suf_len = 0; | |
177 | ||
178 | if (!(ret->pattern = new_array(char, pre_len + pat_len + suf_len + 1))) | |
fdc79501 | 179 | out_of_memory("add_rule"); |
4c74d44d | 180 | if (pre_len) { |
4a86fbcd | 181 | memcpy(ret->pattern, dirbuf + module_dirlen, pre_len); |
4c74d44d WD |
182 | for (cp = ret->pattern; cp < ret->pattern + pre_len; cp++) { |
183 | if (*cp == '/') | |
184 | slash_cnt++; | |
185 | } | |
186 | } | |
4a86fbcd WD |
187 | strlcpy(ret->pattern + pre_len, pat, pat_len + 1); |
188 | pat_len += pre_len; | |
f5aeb6ff WD |
189 | if (suf_len) { |
190 | memcpy(ret->pattern + pat_len, SLASH_WILD3_SUFFIX, suf_len+1); | |
191 | pat_len += suf_len; | |
192 | slash_cnt++; | |
193 | } | |
f8f72644 WD |
194 | |
195 | if (strpbrk(ret->pattern, "*[?")) { | |
5e972dcf | 196 | mflags |= MATCHFLG_WILD; |
96d3590a | 197 | if ((cp = strstr(ret->pattern, "**")) != NULL) { |
5e972dcf | 198 | mflags |= MATCHFLG_WILD2; |
170381c0 | 199 | /* If the pattern starts with **, note that. */ |
96d3590a | 200 | if (cp == ret->pattern) |
5e972dcf | 201 | mflags |= MATCHFLG_WILD2_PREFIX; |
e5daa273 WD |
202 | /* If the pattern ends with ***, note that. */ |
203 | if (pat_len >= 3 | |
204 | && ret->pattern[pat_len-3] == '*' | |
205 | && ret->pattern[pat_len-2] == '*' | |
206 | && ret->pattern[pat_len-1] == '*') | |
207 | mflags |= MATCHFLG_WILD3_SUFFIX; | |
0f2ac855 | 208 | } |
2bca43f6 | 209 | } |
c627d613 | 210 | |
6dfd07d0 | 211 | if (mflags & MATCHFLG_PERDIR_MERGE) { |
7842418b | 212 | struct filter_list_struct *lp; |
6dfd07d0 WD |
213 | unsigned int len; |
214 | int i; | |
215 | ||
216 | if ((cp = strrchr(ret->pattern, '/')) != NULL) | |
217 | cp++; | |
218 | else | |
219 | cp = ret->pattern; | |
220 | ||
221 | /* If the local merge file was already mentioned, don't | |
222 | * add it again. */ | |
223 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b | 224 | struct filter_struct *ex = mergelist_parents[i]; |
6dfd07d0 WD |
225 | const char *s = strrchr(ex->pattern, '/'); |
226 | if (s) | |
bf39270e | 227 | s++; |
6dfd07d0 | 228 | else |
bf39270e | 229 | s = ex->pattern; |
6dfd07d0 WD |
230 | len = strlen(s); |
231 | if (len == pat_len - (cp - ret->pattern) | |
232 | && memcmp(s, cp, len) == 0) { | |
7842418b | 233 | free_filter(ret); |
6dfd07d0 WD |
234 | return; |
235 | } | |
236 | } | |
237 | ||
7842418b | 238 | if (!(lp = new_array(struct filter_list_struct, 1))) |
fdc79501 | 239 | out_of_memory("add_rule"); |
6dfd07d0 | 240 | lp->head = lp->tail = NULL; |
fdc79501 WD |
241 | if (asprintf(&lp->debug_type, " [per-dir %s]", cp) < 0) |
242 | out_of_memory("add_rule"); | |
6dfd07d0 WD |
243 | ret->u.mergelist = lp; |
244 | ||
245 | if (mergelist_cnt == mergelist_size) { | |
246 | mergelist_size += 5; | |
247 | mergelist_parents = realloc_array(mergelist_parents, | |
7842418b | 248 | struct filter_struct *, |
6dfd07d0 WD |
249 | mergelist_size); |
250 | if (!mergelist_parents) | |
fdc79501 | 251 | out_of_memory("add_rule"); |
6dfd07d0 WD |
252 | } |
253 | mergelist_parents[mergelist_cnt++] = ret; | |
4c74d44d WD |
254 | } else |
255 | ret->u.slash_cnt = slash_cnt; | |
0944563e | 256 | |
c1b29492 WD |
257 | ret->match_flags = mflags; |
258 | ||
6dfd07d0 WD |
259 | if (!listp->tail) { |
260 | ret->next = listp->head; | |
b2aa573b | 261 | listp->head = listp->tail = ret; |
6dfd07d0 WD |
262 | } else { |
263 | ret->next = listp->tail->next; | |
b2aa573b WD |
264 | listp->tail->next = ret; |
265 | listp->tail = ret; | |
266 | } | |
2b6b4d53 AT |
267 | } |
268 | ||
7842418b | 269 | static void clear_filter_list(struct filter_list_struct *listp) |
2b6b4d53 | 270 | { |
6dfd07d0 | 271 | if (listp->tail) { |
7842418b | 272 | struct filter_struct *ent, *next; |
6dfd07d0 WD |
273 | /* Truncate any inherited items from the local list. */ |
274 | listp->tail->next = NULL; | |
275 | /* Now free everything that is left. */ | |
276 | for (ent = listp->head; ent; ent = next) { | |
277 | next = ent->next; | |
7842418b | 278 | free_filter(ent); |
6dfd07d0 WD |
279 | } |
280 | } | |
281 | ||
282 | listp->head = listp->tail = NULL; | |
2b6b4d53 | 283 | } |
c627d613 | 284 | |
6dfd07d0 WD |
285 | /* This returns an expanded (absolute) filename for the merge-file name if |
286 | * the name has any slashes in it OR if the parent_dirscan var is True; | |
287 | * otherwise it returns the original merge_file name. If the len_ptr value | |
288 | * is non-NULL the merge_file name is limited by the referenced length | |
289 | * value and will be updated with the length of the resulting name. We | |
290 | * always return a name that is null terminated, even if the merge_file | |
291 | * name was not. */ | |
292 | static char *parse_merge_name(const char *merge_file, unsigned int *len_ptr, | |
293 | unsigned int prefix_skip) | |
5be7fa93 | 294 | { |
6dfd07d0 WD |
295 | static char buf[MAXPATHLEN]; |
296 | char *fn, tmpbuf[MAXPATHLEN]; | |
297 | unsigned int fn_len; | |
298 | ||
299 | if (!parent_dirscan && *merge_file != '/') { | |
300 | /* Return the name unchanged it doesn't have any slashes. */ | |
301 | if (len_ptr) { | |
302 | const char *p = merge_file + *len_ptr; | |
303 | while (--p > merge_file && *p != '/') {} | |
304 | if (p == merge_file) { | |
305 | strlcpy(buf, merge_file, *len_ptr + 1); | |
306 | return buf; | |
307 | } | |
308 | } else if (strchr(merge_file, '/') == NULL) | |
309 | return (char *)merge_file; | |
310 | } | |
5be7fa93 | 311 | |
6dfd07d0 WD |
312 | fn = *merge_file == '/' ? buf : tmpbuf; |
313 | if (sanitize_paths) { | |
314 | const char *r = prefix_skip ? "/" : NULL; | |
315 | /* null-terminate the name if it isn't already */ | |
316 | if (len_ptr && merge_file[*len_ptr]) { | |
317 | char *to = fn == buf ? tmpbuf : buf; | |
318 | strlcpy(to, merge_file, *len_ptr + 1); | |
319 | merge_file = to; | |
320 | } | |
d48810ba | 321 | if (!sanitize_path(fn, merge_file, r, dirbuf_depth, SP_DEFAULT)) { |
6dfd07d0 | 322 | rprintf(FERROR, "merge-file name overflows: %s\n", |
45c49b52 | 323 | merge_file); |
6dfd07d0 WD |
324 | return NULL; |
325 | } | |
798cde47 | 326 | fn_len = strlen(fn); |
6dfd07d0 WD |
327 | } else { |
328 | strlcpy(fn, merge_file, len_ptr ? *len_ptr + 1 : MAXPATHLEN); | |
b58bfb2f | 329 | fn_len = clean_fname(fn, CFN_COLLAPSE_DOT_DOT_DIRS); |
b2aa573b | 330 | } |
0f78b815 | 331 | |
798cde47 WD |
332 | /* If the name isn't in buf yet, it's wasn't absolute. */ |
333 | if (fn != buf) { | |
9793bbb3 WD |
334 | int d_len = dirbuf_len - prefix_skip; |
335 | if (d_len + fn_len >= MAXPATHLEN) { | |
798cde47 WD |
336 | rprintf(FERROR, "merge-file name overflows: %s\n", fn); |
337 | return NULL; | |
338 | } | |
9793bbb3 WD |
339 | memcpy(buf, dirbuf + prefix_skip, d_len); |
340 | memcpy(buf + d_len, fn, fn_len + 1); | |
b58bfb2f | 341 | fn_len = clean_fname(buf, CFN_COLLAPSE_DOT_DOT_DIRS); |
6dfd07d0 | 342 | } |
6dfd07d0 | 343 | |
6dfd07d0 WD |
344 | if (len_ptr) |
345 | *len_ptr = fn_len; | |
346 | return buf; | |
347 | } | |
5be7fa93 | 348 | |
6dfd07d0 | 349 | /* Sets the dirbuf and dirbuf_len values. */ |
7842418b | 350 | void set_filter_dir(const char *dir, unsigned int dirlen) |
6dfd07d0 WD |
351 | { |
352 | unsigned int len; | |
353 | if (*dir != '/') { | |
354 | memcpy(dirbuf, curr_dir, curr_dir_len); | |
355 | dirbuf[curr_dir_len] = '/'; | |
356 | len = curr_dir_len + 1; | |
357 | if (len + dirlen >= MAXPATHLEN) | |
358 | dirlen = 0; | |
359 | } else | |
360 | len = 0; | |
361 | memcpy(dirbuf + len, dir, dirlen); | |
362 | dirbuf[dirlen + len] = '\0'; | |
b58bfb2f | 363 | dirbuf_len = clean_fname(dirbuf, CFN_COLLAPSE_DOT_DOT_DIRS); |
6dfd07d0 WD |
364 | if (dirbuf_len > 1 && dirbuf[dirbuf_len-1] == '.' |
365 | && dirbuf[dirbuf_len-2] == '/') | |
366 | dirbuf_len -= 2; | |
367 | if (dirbuf_len != 1) | |
368 | dirbuf[dirbuf_len++] = '/'; | |
369 | dirbuf[dirbuf_len] = '\0'; | |
370 | if (sanitize_paths) | |
371 | dirbuf_depth = count_dir_elements(dirbuf + module_dirlen); | |
372 | } | |
373 | ||
374 | /* This routine takes a per-dir merge-file entry and finishes its setup. | |
375 | * If the name has a path portion then we check to see if it refers to a | |
376 | * parent directory of the first transfer dir. If it does, we scan all the | |
377 | * dirs from that point through the parent dir of the transfer dir looking | |
378 | * for the per-dir merge-file in each one. */ | |
7842418b | 379 | static BOOL setup_merge_file(struct filter_struct *ex, |
b6f06b8e | 380 | struct filter_list_struct *lp) |
6dfd07d0 WD |
381 | { |
382 | char buf[MAXPATHLEN]; | |
383 | char *x, *y, *pat = ex->pattern; | |
384 | unsigned int len; | |
385 | ||
386 | if (!(x = parse_merge_name(pat, NULL, 0)) || *x != '/') | |
387 | return 0; | |
388 | ||
389 | y = strrchr(x, '/'); | |
390 | *y = '\0'; | |
391 | ex->pattern = strdup(y+1); | |
392 | if (!*x) | |
393 | x = "/"; | |
394 | if (*x == '/') | |
395 | strlcpy(buf, x, MAXPATHLEN); | |
396 | else | |
397 | pathjoin(buf, MAXPATHLEN, dirbuf, x); | |
398 | ||
b58bfb2f | 399 | len = clean_fname(buf, CFN_COLLAPSE_DOT_DOT_DIRS); |
6dfd07d0 WD |
400 | if (len != 1 && len < MAXPATHLEN-1) { |
401 | buf[len++] = '/'; | |
402 | buf[len] = '\0'; | |
403 | } | |
404 | /* This ensures that the specified dir is a parent of the transfer. */ | |
405 | for (x = buf, y = dirbuf; *x && *x == *y; x++, y++) {} | |
406 | if (*x) | |
407 | y += strlen(y); /* nope -- skip the scan */ | |
408 | ||
409 | parent_dirscan = True; | |
410 | while (*y) { | |
411 | char save[MAXPATHLEN]; | |
412 | strlcpy(save, y, MAXPATHLEN); | |
413 | *y = '\0'; | |
414 | dirbuf_len = y - dirbuf; | |
415 | strlcpy(x, ex->pattern, MAXPATHLEN - (x - buf)); | |
fdc79501 | 416 | parse_filter_file(lp, buf, ex->match_flags, XFLG_ANCHORED2ABS); |
6dfd07d0 WD |
417 | if (ex->match_flags & MATCHFLG_NO_INHERIT) |
418 | lp->head = NULL; | |
419 | lp->tail = NULL; | |
420 | strlcpy(y, save, MAXPATHLEN); | |
421 | while ((*x++ = *y++) != '/') {} | |
422 | } | |
423 | parent_dirscan = False; | |
424 | free(pat); | |
425 | return 1; | |
426 | } | |
427 | ||
428 | /* Each time rsync changes to a new directory it call this function to | |
429 | * handle all the per-dir merge-files. The "dir" value is the current path | |
430 | * relative to curr_dir (which might not be null-terminated). We copy it | |
431 | * into dirbuf so that we can easily append a file name on the end. */ | |
7842418b | 432 | void *push_local_filters(const char *dir, unsigned int dirlen) |
6dfd07d0 | 433 | { |
7842418b | 434 | struct filter_list_struct *ap, *push; |
6dfd07d0 WD |
435 | int i; |
436 | ||
7842418b | 437 | set_filter_dir(dir, dirlen); |
6dfd07d0 | 438 | |
a2b371cd WD |
439 | if (!mergelist_cnt) |
440 | return NULL; | |
441 | ||
7842418b | 442 | push = new_array(struct filter_list_struct, mergelist_cnt); |
6dfd07d0 | 443 | if (!push) |
7842418b | 444 | out_of_memory("push_local_filters"); |
6dfd07d0 WD |
445 | |
446 | for (i = 0, ap = push; i < mergelist_cnt; i++) { | |
447 | memcpy(ap++, mergelist_parents[i]->u.mergelist, | |
7842418b | 448 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
449 | } |
450 | ||
fdc79501 | 451 | /* Note: parse_filter_file() might increase mergelist_cnt, so keep |
6dfd07d0 WD |
452 | * this loop separate from the above loop. */ |
453 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b WD |
454 | struct filter_struct *ex = mergelist_parents[i]; |
455 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 | 456 | |
951e826b | 457 | if (DEBUG_GTE(FILTER, 2)) { |
7842418b | 458 | rprintf(FINFO, "[%s] pushing filter list%s\n", |
6dfd07d0 WD |
459 | who_am_i(), lp->debug_type); |
460 | } | |
461 | ||
462 | lp->tail = NULL; /* Switch any local rules to inherited. */ | |
463 | if (ex->match_flags & MATCHFLG_NO_INHERIT) | |
464 | lp->head = NULL; | |
6dfd07d0 WD |
465 | |
466 | if (ex->match_flags & MATCHFLG_FINISH_SETUP) { | |
467 | ex->match_flags &= ~MATCHFLG_FINISH_SETUP; | |
b6f06b8e | 468 | if (setup_merge_file(ex, lp)) |
7842418b | 469 | set_filter_dir(dir, dirlen); |
6dfd07d0 WD |
470 | } |
471 | ||
472 | if (strlcpy(dirbuf + dirbuf_len, ex->pattern, | |
b6f06b8e | 473 | MAXPATHLEN - dirbuf_len) < MAXPATHLEN - dirbuf_len) { |
fdc79501 WD |
474 | parse_filter_file(lp, dirbuf, ex->match_flags, |
475 | XFLG_ANCHORED2ABS); | |
b6f06b8e | 476 | } else { |
6dfd07d0 WD |
477 | io_error |= IOERR_GENERAL; |
478 | rprintf(FINFO, | |
7842418b | 479 | "cannot add local filter rules in long-named directory: %s\n", |
6dfd07d0 WD |
480 | full_fname(dirbuf)); |
481 | } | |
482 | dirbuf[dirbuf_len] = '\0'; | |
483 | } | |
484 | ||
485 | return (void*)push; | |
486 | } | |
487 | ||
7842418b | 488 | void pop_local_filters(void *mem) |
6dfd07d0 | 489 | { |
7842418b | 490 | struct filter_list_struct *ap, *pop = (struct filter_list_struct*)mem; |
6dfd07d0 WD |
491 | int i; |
492 | ||
493 | for (i = mergelist_cnt; i-- > 0; ) { | |
7842418b WD |
494 | struct filter_struct *ex = mergelist_parents[i]; |
495 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 | 496 | |
951e826b | 497 | if (DEBUG_GTE(FILTER, 2)) { |
7842418b | 498 | rprintf(FINFO, "[%s] popping filter list%s\n", |
6dfd07d0 WD |
499 | who_am_i(), lp->debug_type); |
500 | } | |
501 | ||
7842418b | 502 | clear_filter_list(lp); |
6dfd07d0 WD |
503 | } |
504 | ||
a2b371cd WD |
505 | if (!pop) |
506 | return; | |
507 | ||
6dfd07d0 WD |
508 | for (i = 0, ap = pop; i < mergelist_cnt; i++) { |
509 | memcpy(mergelist_parents[i]->u.mergelist, ap++, | |
7842418b | 510 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
511 | } |
512 | ||
513 | free(pop); | |
5be7fa93 WD |
514 | } |
515 | ||
fe04532a WD |
516 | void change_local_filter_dir(const char *dname, int dlen, int dir_depth) |
517 | { | |
7fa60281 | 518 | static int cur_depth = -1; |
fe04532a WD |
519 | static void *filt_array[MAXPATHLEN/2+1]; |
520 | ||
521 | if (!dname) { | |
7fa60281 WD |
522 | for ( ; cur_depth >= 0; cur_depth--) { |
523 | if (filt_array[cur_depth]) { | |
524 | pop_local_filters(filt_array[cur_depth]); | |
525 | filt_array[cur_depth] = NULL; | |
526 | } | |
527 | } | |
fe04532a WD |
528 | return; |
529 | } | |
530 | ||
531 | assert(dir_depth < MAXPATHLEN/2+1); | |
532 | ||
7fa60281 WD |
533 | for ( ; cur_depth >= dir_depth; cur_depth--) { |
534 | if (filt_array[cur_depth]) { | |
535 | pop_local_filters(filt_array[cur_depth]); | |
536 | filt_array[cur_depth] = NULL; | |
537 | } | |
538 | } | |
fe04532a | 539 | |
7fa60281 | 540 | cur_depth = dir_depth; |
fe04532a WD |
541 | filt_array[cur_depth] = push_local_filters(dname, dlen); |
542 | } | |
543 | ||
ffe8feb2 | 544 | static int rule_matches(const char *fname, struct filter_struct *ex, int name_is_dir) |
2b6b4d53 | 545 | { |
e5daa273 | 546 | int slash_handling, str_cnt = 0, anchored_match = 0; |
f2ae9e85 | 547 | int ret_match = ex->match_flags & MATCHFLG_NEGATE ? 0 : 1; |
e5daa273 WD |
548 | char *p, *pattern = ex->pattern; |
549 | const char *strings[16]; /* more than enough */ | |
ffe8feb2 | 550 | const char *name = fname + (*fname == '/'); |
2b6b4d53 | 551 | |
9f186578 WD |
552 | if (!*name) |
553 | return 0; | |
554 | ||
6dfd07d0 | 555 | if (!ex->u.slash_cnt && !(ex->match_flags & MATCHFLG_WILD2)) { |
770de899 WD |
556 | /* If the pattern does not have any slashes AND it does |
557 | * not have a "**" (which could match a slash), then we | |
558 | * just match the name portion of the path. */ | |
5be7fa93 WD |
559 | if ((p = strrchr(name,'/')) != NULL) |
560 | name = p+1; | |
c291d057 | 561 | } else if (ex->match_flags & MATCHFLG_ABS_PATH && *fname != '/' |
6dfd07d0 | 562 | && curr_dir_len > module_dirlen + 1) { |
770de899 WD |
563 | /* If we're matching against an absolute-path pattern, |
564 | * we need to prepend our full path info. */ | |
e5daa273 WD |
565 | strings[str_cnt++] = curr_dir + module_dirlen + 1; |
566 | strings[str_cnt++] = "/"; | |
c291d057 | 567 | } else if (ex->match_flags & MATCHFLG_WILD2_PREFIX && *fname != '/') { |
e5daa273 WD |
568 | /* Allow "**"+"/" to match at the start of the string. */ |
569 | strings[str_cnt++] = "/"; | |
5be7fa93 | 570 | } |
e5daa273 WD |
571 | strings[str_cnt++] = name; |
572 | if (name_is_dir) { | |
573 | /* Allow a trailing "/"+"***" to match the directory. */ | |
574 | if (ex->match_flags & MATCHFLG_WILD3_SUFFIX) | |
575 | strings[str_cnt++] = "/"; | |
576 | } else if (ex->match_flags & MATCHFLG_DIRECTORY) | |
f2ae9e85 | 577 | return !ret_match; |
e5daa273 | 578 | strings[str_cnt] = NULL; |
2b6b4d53 | 579 | |
170381c0 | 580 | if (*pattern == '/') { |
770de899 | 581 | anchored_match = 1; |
2b6b4d53 AT |
582 | pattern++; |
583 | } | |
584 | ||
e5daa273 WD |
585 | if (!anchored_match && ex->u.slash_cnt |
586 | && !(ex->match_flags & MATCHFLG_WILD2)) { | |
170381c0 WD |
587 | /* A non-anchored match with an infix slash and no "**" |
588 | * needs to match the last slash_cnt+1 name elements. */ | |
e5daa273 WD |
589 | slash_handling = ex->u.slash_cnt + 1; |
590 | } else if (!anchored_match && !(ex->match_flags & MATCHFLG_WILD2_PREFIX) | |
591 | && ex->match_flags & MATCHFLG_WILD2) { | |
592 | /* A non-anchored match with an infix or trailing "**" (but not | |
593 | * a prefixed "**") needs to try matching after every slash. */ | |
594 | slash_handling = -1; | |
595 | } else { | |
596 | /* The pattern matches only at the start of the path or name. */ | |
597 | slash_handling = 0; | |
598 | } | |
599 | ||
600 | if (ex->match_flags & MATCHFLG_WILD) { | |
601 | if (wildmatch_array(pattern, strings, slash_handling)) | |
602 | return ret_match; | |
603 | } else if (str_cnt > 1) { | |
604 | if (litmatch_array(pattern, strings, slash_handling)) | |
f2ae9e85 | 605 | return ret_match; |
770de899 | 606 | } else if (anchored_match) { |
48ecccce | 607 | if (strcmp(name, pattern) == 0) |
f2ae9e85 | 608 | return ret_match; |
2b6b4d53 AT |
609 | } else { |
610 | int l1 = strlen(name); | |
ea2111d1 | 611 | int l2 = strlen(pattern); |
0f2ac855 | 612 | if (l2 <= l1 && |
ea2111d1 | 613 | strcmp(name+(l1-l2),pattern) == 0 && |
170381c0 | 614 | (l1==l2 || name[l1-(l2+1)] == '/')) { |
f2ae9e85 | 615 | return ret_match; |
c36cd317 | 616 | } |
2b6b4d53 AT |
617 | } |
618 | ||
f2ae9e85 | 619 | return !ret_match; |
c627d613 AT |
620 | } |
621 | ||
622 | ||
1df02d13 | 623 | static void report_filter_result(enum logcode code, char const *name, |
7842418b WD |
624 | struct filter_struct const *ent, |
625 | int name_is_dir, const char *type) | |
d567322f | 626 | { |
0f2ac855 | 627 | /* If a trailing slash is present to match only directories, |
fdc79501 | 628 | * then it is stripped out by add_rule(). So as a special |
0f2ac855 WD |
629 | * case we add it back in here. */ |
630 | ||
951e826b | 631 | if (DEBUG_GTE(FILTER, 1)) { |
d5782b52 WD |
632 | static char *actions[2][2] |
633 | = { {"show", "hid"}, {"risk", "protect"} }; | |
634 | const char *w = who_am_i(); | |
1df02d13 | 635 | rprintf(code, "[%s] %sing %s %s because of pattern %s%s%s\n", |
d5782b52 WD |
636 | w, actions[*w!='s'][!(ent->match_flags&MATCHFLG_INCLUDE)], |
637 | name_is_dir ? "directory" : "file", name, ent->pattern, | |
638 | ent->match_flags & MATCHFLG_DIRECTORY ? "/" : "", type); | |
ea847c62 | 639 | } |
d567322f MP |
640 | } |
641 | ||
642 | ||
643 | /* | |
a6536635 WD |
644 | * Return -1 if file "name" is defined to be excluded by the specified |
645 | * exclude list, 1 if it is included, and 0 if it was not matched. | |
d567322f | 646 | */ |
1df02d13 WD |
647 | int check_filter(struct filter_list_struct *listp, enum logcode code, |
648 | const char *name, int name_is_dir) | |
c627d613 | 649 | { |
7842418b | 650 | struct filter_struct *ent; |
c627d613 | 651 | |
b2aa573b | 652 | for (ent = listp->head; ent; ent = ent->next) { |
ccdb23bb WD |
653 | if (ignore_perishable && ent->match_flags & MATCHFLG_PERISHABLE) |
654 | continue; | |
6dfd07d0 | 655 | if (ent->match_flags & MATCHFLG_PERDIR_MERGE) { |
1df02d13 | 656 | int rc = check_filter(ent->u.mergelist, code, name, |
7842418b | 657 | name_is_dir); |
6dfd07d0 WD |
658 | if (rc) |
659 | return rc; | |
660 | continue; | |
661 | } | |
fdc79501 | 662 | if (ent->match_flags & MATCHFLG_CVS_IGNORE) { |
1df02d13 | 663 | int rc = check_filter(&cvs_filter_list, code, name, |
fdc79501 WD |
664 | name_is_dir); |
665 | if (rc) | |
666 | return rc; | |
667 | continue; | |
668 | } | |
7842418b | 669 | if (rule_matches(name, ent, name_is_dir)) { |
1df02d13 WD |
670 | report_filter_result(code, name, ent, name_is_dir, |
671 | listp->debug_type); | |
5e972dcf | 672 | return ent->match_flags & MATCHFLG_INCLUDE ? 1 : -1; |
0f2ac855 | 673 | } |
2b6b4d53 | 674 | } |
c627d613 | 675 | |
2b6b4d53 | 676 | return 0; |
c627d613 AT |
677 | } |
678 | ||
345e0988 | 679 | #define RULE_STRCMP(s,r) rule_strcmp((s), (r), sizeof (r) - 1) |
a1ac8edd | 680 | |
4adbb5f2 | 681 | static const uchar *rule_strcmp(const uchar *str, const char *rule, int rule_len) |
a1ac8edd | 682 | { |
4adbb5f2 | 683 | if (strncmp((char*)str, rule, rule_len) != 0) |
a1ac8edd WD |
684 | return NULL; |
685 | if (isspace(str[rule_len]) || str[rule_len] == '_' || !str[rule_len]) | |
686 | return str + rule_len - 1; | |
687 | if (str[rule_len] == ',') | |
688 | return str + rule_len; | |
689 | return NULL; | |
690 | } | |
c627d613 | 691 | |
f8f72644 WD |
692 | /* Get the next include/exclude arg from the string. The token will not |
693 | * be '\0' terminated, so use the returned length to limit the string. | |
694 | * Also, be sure to add this length to the returned pointer before passing | |
e425fbe8 | 695 | * it back to ask for the next token. This routine parses the "!" (list- |
b6f06b8e WD |
696 | * clearing) token and (depending on the mflags) the various prefixes. |
697 | * The *mflags_ptr value will be set on exit to the new MATCHFLG_* bits | |
698 | * for the current token. */ | |
fdc79501 WD |
699 | static const char *parse_rule_tok(const char *p, uint32 mflags, int xflags, |
700 | unsigned int *len_ptr, uint32 *mflags_ptr) | |
f8f72644 | 701 | { |
fdc79501 WD |
702 | const uchar *s = (const uchar *)p; |
703 | uint32 new_mflags; | |
704 | unsigned int len; | |
f8f72644 | 705 | |
b6f06b8e | 706 | if (mflags & MATCHFLG_WORD_SPLIT) { |
96d3590a WD |
707 | /* Skip over any initial whitespace. */ |
708 | while (isspace(*s)) | |
f8f72644 | 709 | s++; |
6dfd07d0 | 710 | /* Update to point to real start of rule. */ |
abca4eba | 711 | p = (const char *)s; |
f8f72644 | 712 | } |
6dfd07d0 WD |
713 | if (!*s) |
714 | return NULL; | |
715 | ||
b6f06b8e WD |
716 | new_mflags = mflags & MATCHFLGS_FROM_CONTAINER; |
717 | ||
718 | /* Figure out what kind of a filter rule "s" is pointing at. Note | |
719 | * that if MATCHFLG_NO_PREFIXES is set, the rule is either an include | |
720 | * or an exclude based on the inheritance of the MATCHFLG_INCLUDE | |
721 | * flag (above). XFLG_OLD_PREFIXES indicates a compatibility mode | |
722 | * for old include/exclude patterns where just "+ " and "- " are | |
723 | * allowed as optional prefixes. */ | |
724 | if (mflags & MATCHFLG_NO_PREFIXES) { | |
a1ac8edd | 725 | if (*s == '!' && mflags & MATCHFLG_CVS_IGNORE) |
b6f06b8e WD |
726 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
727 | } else if (xflags & XFLG_OLD_PREFIXES) { | |
728 | if (*s == '-' && s[1] == ' ') { | |
729 | new_mflags &= ~MATCHFLG_INCLUDE; | |
730 | s += 2; | |
731 | } else if (*s == '+' && s[1] == ' ') { | |
732 | new_mflags |= MATCHFLG_INCLUDE; | |
733 | s += 2; | |
664cf327 | 734 | } else if (*s == '!') |
b6f06b8e WD |
735 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
736 | } else { | |
a1ac8edd | 737 | char ch = 0, *mods = ""; |
6dfd07d0 | 738 | switch (*s) { |
a1ac8edd | 739 | case 'c': |
345e0988 | 740 | if ((s = RULE_STRCMP(s, "clear")) != NULL) |
a1ac8edd WD |
741 | ch = '!'; |
742 | break; | |
743 | case 'd': | |
345e0988 | 744 | if ((s = RULE_STRCMP(s, "dir-merge")) != NULL) |
a1ac8edd WD |
745 | ch = ':'; |
746 | break; | |
747 | case 'e': | |
345e0988 | 748 | if ((s = RULE_STRCMP(s, "exclude")) != NULL) |
a1ac8edd WD |
749 | ch = '-'; |
750 | break; | |
ed243f8c WD |
751 | case 'h': |
752 | if ((s = RULE_STRCMP(s, "hide")) != NULL) | |
753 | ch = 'H'; | |
754 | break; | |
a1ac8edd | 755 | case 'i': |
345e0988 | 756 | if ((s = RULE_STRCMP(s, "include")) != NULL) |
a1ac8edd WD |
757 | ch = '+'; |
758 | break; | |
759 | case 'm': | |
345e0988 | 760 | if ((s = RULE_STRCMP(s, "merge")) != NULL) |
a1ac8edd WD |
761 | ch = '.'; |
762 | break; | |
ed243f8c WD |
763 | case 'p': |
764 | if ((s = RULE_STRCMP(s, "protect")) != NULL) | |
765 | ch = 'P'; | |
766 | break; | |
767 | case 'r': | |
768 | if ((s = RULE_STRCMP(s, "risk")) != NULL) | |
769 | ch = 'R'; | |
770 | break; | |
771 | case 's': | |
772 | if ((s = RULE_STRCMP(s, "show")) != NULL) | |
773 | ch = 'S'; | |
774 | break; | |
a1ac8edd WD |
775 | default: |
776 | ch = *s; | |
64b761c1 WD |
777 | if (s[1] == ',') |
778 | s++; | |
a1ac8edd WD |
779 | break; |
780 | } | |
781 | switch (ch) { | |
6dfd07d0 | 782 | case ':': |
b6f06b8e WD |
783 | new_mflags |= MATCHFLG_PERDIR_MERGE |
784 | | MATCHFLG_FINISH_SETUP; | |
6dfd07d0 WD |
785 | /* FALL THROUGH */ |
786 | case '.': | |
b6f06b8e WD |
787 | new_mflags |= MATCHFLG_MERGE_FILE; |
788 | mods = MODIFIERS_INCL_EXCL MODIFIERS_MERGE_FILE; | |
6dfd07d0 WD |
789 | break; |
790 | case '+': | |
b6f06b8e | 791 | new_mflags |= MATCHFLG_INCLUDE; |
bf39270e | 792 | /* FALL THROUGH */ |
6dfd07d0 | 793 | case '-': |
b6f06b8e | 794 | mods = MODIFIERS_INCL_EXCL; |
6dfd07d0 | 795 | break; |
ed243f8c WD |
796 | case 'S': |
797 | new_mflags |= MATCHFLG_INCLUDE; | |
798 | /* FALL THROUGH */ | |
799 | case 'H': | |
800 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
801 | mods = MODIFIERS_HIDE_PROTECT; | |
802 | break; | |
803 | case 'R': | |
804 | new_mflags |= MATCHFLG_INCLUDE; | |
805 | /* FALL THROUGH */ | |
806 | case 'P': | |
807 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
808 | mods = MODIFIERS_HIDE_PROTECT; | |
809 | break; | |
6dfd07d0 | 810 | case '!': |
b6f06b8e | 811 | new_mflags |= MATCHFLG_CLEAR_LIST; |
6dfd07d0 WD |
812 | mods = NULL; |
813 | break; | |
814 | default: | |
ac1cb938 | 815 | rprintf(FERROR, "Unknown filter rule: `%s'\n", p); |
6dfd07d0 WD |
816 | exit_cleanup(RERR_SYNTAX); |
817 | } | |
bf39270e | 818 | while (mods && *++s && *s != ' ' && *s != '_') { |
6dfd07d0 | 819 | if (strchr(mods, *s) == NULL) { |
b6f06b8e | 820 | if (mflags & MATCHFLG_WORD_SPLIT && isspace(*s)) { |
6dfd07d0 WD |
821 | s--; |
822 | break; | |
823 | } | |
b6f06b8e | 824 | invalid: |
6dfd07d0 | 825 | rprintf(FERROR, |
b6f06b8e | 826 | "invalid modifier sequence at '%c' in filter rule: %s\n", |
6dfd07d0 WD |
827 | *s, p); |
828 | exit_cleanup(RERR_SYNTAX); | |
829 | } | |
830 | switch (*s) { | |
831 | case '-': | |
b6f06b8e WD |
832 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
833 | goto invalid; | |
834 | new_mflags |= MATCHFLG_NO_PREFIXES; | |
6dfd07d0 WD |
835 | break; |
836 | case '+': | |
b6f06b8e WD |
837 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
838 | goto invalid; | |
839 | new_mflags |= MATCHFLG_NO_PREFIXES | |
840 | | MATCHFLG_INCLUDE; | |
6dfd07d0 | 841 | break; |
bf39270e | 842 | case '/': |
b6f06b8e | 843 | new_mflags |= MATCHFLG_ABS_PATH; |
bf39270e | 844 | break; |
f2ae9e85 | 845 | case '!': |
b6f06b8e | 846 | new_mflags |= MATCHFLG_NEGATE; |
f2ae9e85 | 847 | break; |
6dfd07d0 | 848 | case 'C': |
b6f06b8e WD |
849 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
850 | goto invalid; | |
b6f06b8e WD |
851 | new_mflags |= MATCHFLG_NO_PREFIXES |
852 | | MATCHFLG_WORD_SPLIT | |
fdc79501 WD |
853 | | MATCHFLG_NO_INHERIT |
854 | | MATCHFLG_CVS_IGNORE; | |
6dfd07d0 WD |
855 | break; |
856 | case 'e': | |
b6f06b8e | 857 | new_mflags |= MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
858 | break; |
859 | case 'n': | |
b6f06b8e | 860 | new_mflags |= MATCHFLG_NO_INHERIT; |
6dfd07d0 | 861 | break; |
ccdb23bb WD |
862 | case 'p': |
863 | new_mflags |= MATCHFLG_PERISHABLE; | |
864 | break; | |
ed243f8c WD |
865 | case 'r': |
866 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
867 | break; | |
868 | case 's': | |
869 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
870 | break; | |
0b2901b7 | 871 | case 'w': |
b6f06b8e | 872 | new_mflags |= MATCHFLG_WORD_SPLIT; |
6dfd07d0 WD |
873 | break; |
874 | } | |
875 | } | |
876 | if (*s) | |
877 | s++; | |
6dfd07d0 WD |
878 | } |
879 | ||
b6f06b8e | 880 | if (mflags & MATCHFLG_WORD_SPLIT) { |
fdc79501 | 881 | const uchar *cp = s; |
96d3590a WD |
882 | /* Token ends at whitespace or the end of the string. */ |
883 | while (!isspace(*cp) && *cp != '\0') | |
884 | cp++; | |
885 | len = cp - s; | |
886 | } else | |
0eeb1cf8 | 887 | len = strlen((char*)s); |
96d3590a | 888 | |
b6f06b8e | 889 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
35a388b1 WD |
890 | if (!(mflags & MATCHFLG_NO_PREFIXES) |
891 | && !(xflags & XFLG_OLD_PREFIXES) && len) { | |
6dfd07d0 WD |
892 | rprintf(FERROR, |
893 | "'!' rule has trailing characters: %s\n", p); | |
894 | exit_cleanup(RERR_SYNTAX); | |
895 | } | |
896 | if (len > 1) | |
b6f06b8e | 897 | new_mflags &= ~MATCHFLG_CLEAR_LIST; |
fdc79501 | 898 | } else if (!len && !(new_mflags & MATCHFLG_CVS_IGNORE)) { |
6dfd07d0 WD |
899 | rprintf(FERROR, "unexpected end of filter rule: %s\n", p); |
900 | exit_cleanup(RERR_SYNTAX); | |
901 | } | |
902 | ||
f1678790 | 903 | /* --delete-excluded turns an un-modified include/exclude into a |
48ecccce WD |
904 | * sender-side rule. We also affect per-dir merge files that take |
905 | * no prefixes as a simple optimization. */ | |
f1678790 WD |
906 | if (delete_excluded |
907 | && !(new_mflags & (MATCHFLG_RECEIVER_SIDE|MATCHFLG_SENDER_SIDE)) | |
48ecccce WD |
908 | && (!(new_mflags & MATCHFLG_PERDIR_MERGE) |
909 | || new_mflags & MATCHFLG_NO_PREFIXES)) | |
f1678790 WD |
910 | new_mflags |= MATCHFLG_SENDER_SIDE; |
911 | ||
96d3590a | 912 | *len_ptr = len; |
b6f06b8e | 913 | *mflags_ptr = new_mflags; |
96d3590a | 914 | return (const char *)s; |
f8f72644 WD |
915 | } |
916 | ||
917 | ||
0f78b815 | 918 | static char default_cvsignore[] = |
46db1850 WD |
919 | /* These default ignored items come from the CVS manual. */ |
920 | "RCS SCCS CVS CVS.adm RCSLOG cvslog.* tags TAGS" | |
921 | " .make.state .nse_depinfo *~ #* .#* ,* _$* *$" | |
922 | " *.old *.bak *.BAK *.orig *.rej .del-*" | |
923 | " *.a *.olb *.o *.obj *.so *.exe" | |
924 | " *.Z *.elc *.ln core" | |
925 | /* The rest we added to suit ourself. */ | |
0485b451 | 926 | " .svn/ .git/ .bzr/"; |
46db1850 WD |
927 | |
928 | static void get_cvs_excludes(uint32 mflags) | |
929 | { | |
46db1850 | 930 | static int initialized = 0; |
c2f0e4d9 | 931 | char *p, fname[MAXPATHLEN]; |
46db1850 WD |
932 | |
933 | if (initialized) | |
934 | return; | |
935 | initialized = 1; | |
936 | ||
c2f0e4d9 WD |
937 | parse_rule(&cvs_filter_list, default_cvsignore, |
938 | mflags | (protocol_version >= 30 ? MATCHFLG_PERISHABLE : 0), | |
939 | 0); | |
46db1850 WD |
940 | |
941 | p = module_id >= 0 && lp_use_chroot(module_id) ? "/" : getenv("HOME"); | |
942 | if (p && pathjoin(fname, MAXPATHLEN, p, ".cvsignore") < MAXPATHLEN) | |
943 | parse_filter_file(&cvs_filter_list, fname, mflags, 0); | |
944 | ||
945 | parse_rule(&cvs_filter_list, getenv("CVSIGNORE"), mflags, 0); | |
946 | } | |
947 | ||
948 | ||
fdc79501 WD |
949 | void parse_rule(struct filter_list_struct *listp, const char *pattern, |
950 | uint32 mflags, int xflags) | |
c627d613 | 951 | { |
fdc79501 WD |
952 | unsigned int pat_len; |
953 | uint32 new_mflags; | |
6dfd07d0 | 954 | const char *cp, *p; |
5be7fa93 | 955 | |
f8f72644 | 956 | if (!pattern) |
5e7dbaca | 957 | return; |
f8f72644 | 958 | |
b2aa573b | 959 | while (1) { |
6dfd07d0 | 960 | /* Remember that the returned string is NOT '\0' terminated! */ |
fdc79501 | 961 | cp = parse_rule_tok(pattern, mflags, xflags, |
b6f06b8e | 962 | &pat_len, &new_mflags); |
6dfd07d0 | 963 | if (!cp) |
b2aa573b | 964 | break; |
969f7ed5 WD |
965 | |
966 | pattern = cp + pat_len; | |
967 | ||
6dfd07d0 | 968 | if (pat_len >= MAXPATHLEN) { |
969f7ed5 | 969 | rprintf(FERROR, "discarding over-long filter: %.*s\n", |
e8b21fe4 | 970 | (int)pat_len, cp); |
6dfd07d0 WD |
971 | continue; |
972 | } | |
5e972dcf | 973 | |
b6f06b8e | 974 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
951e826b | 975 | if (DEBUG_GTE(FILTER, 2)) { |
de91e757 | 976 | rprintf(FINFO, |
7842418b | 977 | "[%s] clearing filter list%s\n", |
de91e757 WD |
978 | who_am_i(), listp->debug_type); |
979 | } | |
7842418b | 980 | clear_filter_list(listp); |
5e972dcf WD |
981 | continue; |
982 | } | |
b2aa573b | 983 | |
b6f06b8e | 984 | if (new_mflags & MATCHFLG_MERGE_FILE) { |
fdc79501 WD |
985 | unsigned int len; |
986 | if (!pat_len) { | |
987 | cp = ".cvsignore"; | |
988 | pat_len = 10; | |
989 | } | |
990 | len = pat_len; | |
b6f06b8e | 991 | if (new_mflags & MATCHFLG_EXCLUDE_SELF) { |
969f7ed5 WD |
992 | const char *name = cp + len; |
993 | while (name > cp && name[-1] != '/') name--; | |
994 | len -= name - cp; | |
fdc79501 | 995 | add_rule(listp, name, len, 0, 0); |
b6f06b8e | 996 | new_mflags &= ~MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
997 | len = pat_len; |
998 | } | |
b6f06b8e | 999 | if (new_mflags & MATCHFLG_PERDIR_MERGE) { |
6dfd07d0 | 1000 | if (parent_dirscan) { |
b6f06b8e WD |
1001 | if (!(p = parse_merge_name(cp, &len, |
1002 | module_dirlen))) | |
6dfd07d0 | 1003 | continue; |
fdc79501 | 1004 | add_rule(listp, p, len, new_mflags, 0); |
6dfd07d0 WD |
1005 | continue; |
1006 | } | |
1007 | } else { | |
6dfd07d0 WD |
1008 | if (!(p = parse_merge_name(cp, &len, 0))) |
1009 | continue; | |
fdc79501 WD |
1010 | parse_filter_file(listp, p, new_mflags, |
1011 | XFLG_FATAL_ERRORS); | |
6dfd07d0 WD |
1012 | continue; |
1013 | } | |
f8f72644 | 1014 | } |
6dfd07d0 | 1015 | |
fdc79501 WD |
1016 | add_rule(listp, cp, pat_len, new_mflags, xflags); |
1017 | ||
1018 | if (new_mflags & MATCHFLG_CVS_IGNORE | |
1019 | && !(new_mflags & MATCHFLG_MERGE_FILE)) | |
46db1850 | 1020 | get_cvs_excludes(new_mflags); |
8c35542d | 1021 | } |
c627d613 AT |
1022 | } |
1023 | ||
c627d613 | 1024 | |
fdc79501 WD |
1025 | void parse_filter_file(struct filter_list_struct *listp, const char *fname, |
1026 | uint32 mflags, int xflags) | |
c627d613 | 1027 | { |
5e7dbaca | 1028 | FILE *fp; |
3fac51e2 | 1029 | char line[BIGPATHBUFLEN]; |
7cd72c79 | 1030 | char *eob = line + sizeof line - 1; |
b6f06b8e | 1031 | int word_split = mflags & MATCHFLG_WORD_SPLIT; |
ccdff3eb | 1032 | |
5be7fa93 WD |
1033 | if (!fname || !*fname) |
1034 | return; | |
1035 | ||
5a016db9 | 1036 | if (*fname != '-' || fname[1] || am_server) { |
819bfe45 | 1037 | if (daemon_filter_list.head) { |
5a016db9 | 1038 | strlcpy(line, fname, sizeof line); |
b58bfb2f | 1039 | clean_fname(line, CFN_COLLAPSE_DOT_DOT_DIRS); |
1df02d13 | 1040 | if (check_filter(&daemon_filter_list, FLOG, line, 0) < 0) |
5a016db9 WD |
1041 | fp = NULL; |
1042 | else | |
1043 | fp = fopen(line, "rb"); | |
1044 | } else | |
1045 | fp = fopen(fname, "rb"); | |
1046 | } else | |
5e7dbaca | 1047 | fp = stdin; |
bf39270e | 1048 | |
951e826b | 1049 | if (DEBUG_GTE(FILTER, 2)) { |
fdc79501 | 1050 | rprintf(FINFO, "[%s] parse_filter_file(%s,%x,%x)%s\n", |
45c49b52 | 1051 | who_am_i(), fname, mflags, xflags, |
bf39270e WD |
1052 | fp ? "" : " [not found]"); |
1053 | } | |
1054 | ||
5e7dbaca | 1055 | if (!fp) { |
f8f72644 | 1056 | if (xflags & XFLG_FATAL_ERRORS) { |
a039749b | 1057 | rsyserr(FERROR, errno, |
6dfd07d0 | 1058 | "failed to open %sclude file %s", |
b6f06b8e | 1059 | mflags & MATCHFLG_INCLUDE ? "in" : "ex", |
45c49b52 | 1060 | fname); |
65417579 | 1061 | exit_cleanup(RERR_FILEIO); |
2b6b4d53 | 1062 | } |
5be7fa93 | 1063 | return; |
2b6b4d53 | 1064 | } |
6dfd07d0 WD |
1065 | dirbuf[dirbuf_len] = '\0'; |
1066 | ||
ccdff3eb | 1067 | while (1) { |
5e7dbaca | 1068 | char *s = line; |
619d21ff | 1069 | int ch, overflow = 0; |
ccdff3eb | 1070 | while (1) { |
5e7dbaca | 1071 | if ((ch = getc(fp)) == EOF) { |
61e16468 WD |
1072 | if (ferror(fp) && errno == EINTR) { |
1073 | clearerr(fp); | |
ccdff3eb | 1074 | continue; |
61e16468 | 1075 | } |
ccdff3eb WD |
1076 | break; |
1077 | } | |
40d38dc0 WD |
1078 | if (word_split && isspace(ch)) |
1079 | break; | |
ccdff3eb WD |
1080 | if (eol_nulls? !ch : (ch == '\n' || ch == '\r')) |
1081 | break; | |
1082 | if (s < eob) | |
1083 | *s++ = ch; | |
619d21ff WD |
1084 | else |
1085 | overflow = 1; | |
1086 | } | |
1087 | if (overflow) { | |
7842418b | 1088 | rprintf(FERROR, "discarding over-long filter: %s...\n", line); |
619d21ff | 1089 | s = line; |
ccdff3eb WD |
1090 | } |
1091 | *s = '\0'; | |
7f0feb4d WD |
1092 | /* Skip an empty token and (when line parsing) comments. */ |
1093 | if (*line && (word_split || (*line != ';' && *line != '#'))) | |
fdc79501 | 1094 | parse_rule(listp, line, mflags, xflags); |
5e7dbaca | 1095 | if (ch == EOF) |
ccdff3eb | 1096 | break; |
2b6b4d53 | 1097 | } |
5e7dbaca | 1098 | fclose(fp); |
c627d613 AT |
1099 | } |
1100 | ||
a261103c | 1101 | /* If the "for_xfer" flag is set, the prefix is made compatible with the |
fdc79501 WD |
1102 | * current protocol_version (if possible) or a NULL is returned (if not |
1103 | * possible). */ | |
a261103c | 1104 | char *get_rule_prefix(int match_flags, const char *pat, int for_xfer, |
fdc79501 | 1105 | unsigned int *plen_ptr) |
417b5999 WD |
1106 | { |
1107 | static char buf[MAX_RULE_PREFIX+1]; | |
1108 | char *op = buf; | |
2217b30a | 1109 | int legal_len = for_xfer && protocol_version < 29 ? 1 : MAX_RULE_PREFIX-1; |
417b5999 WD |
1110 | |
1111 | if (match_flags & MATCHFLG_PERDIR_MERGE) { | |
fdc79501 WD |
1112 | if (legal_len == 1) |
1113 | return NULL; | |
417b5999 | 1114 | *op++ = ':'; |
fdc79501 WD |
1115 | } else if (match_flags & MATCHFLG_INCLUDE) |
1116 | *op++ = '+'; | |
1117 | else if (legal_len != 1 | |
1118 | || ((*pat == '-' || *pat == '+') && pat[1] == ' ')) | |
1119 | *op++ = '-'; | |
1120 | else | |
1121 | legal_len = 0; | |
1122 | ||
2a28dd32 WD |
1123 | if (match_flags & MATCHFLG_NEGATE) |
1124 | *op++ = '!'; | |
fdc79501 WD |
1125 | if (match_flags & MATCHFLG_CVS_IGNORE) |
1126 | *op++ = 'C'; | |
1127 | else { | |
417b5999 WD |
1128 | if (match_flags & MATCHFLG_NO_INHERIT) |
1129 | *op++ = 'n'; | |
d09e800a WD |
1130 | if (match_flags & MATCHFLG_WORD_SPLIT) |
1131 | *op++ = 'w'; | |
417b5999 WD |
1132 | if (match_flags & MATCHFLG_NO_PREFIXES) { |
1133 | if (match_flags & MATCHFLG_INCLUDE) | |
1134 | *op++ = '+'; | |
1135 | else | |
1136 | *op++ = '-'; | |
1137 | } | |
417b5999 | 1138 | } |
46db1850 WD |
1139 | if (match_flags & MATCHFLG_EXCLUDE_SELF) |
1140 | *op++ = 'e'; | |
ed243f8c WD |
1141 | if (match_flags & MATCHFLG_SENDER_SIDE |
1142 | && (!for_xfer || protocol_version >= 29)) | |
1143 | *op++ = 's'; | |
1144 | if (match_flags & MATCHFLG_RECEIVER_SIDE | |
1145 | && (!for_xfer || protocol_version >= 29 | |
1146 | || (delete_excluded && am_sender))) | |
1147 | *op++ = 'r'; | |
ccdb23bb WD |
1148 | if (match_flags & MATCHFLG_PERISHABLE) { |
1149 | if (!for_xfer || protocol_version >= 30) | |
1150 | *op++ = 'p'; | |
1151 | else if (am_sender) | |
1152 | return NULL; | |
1153 | } | |
448797a1 WD |
1154 | if (op - buf > legal_len) |
1155 | return NULL; | |
2217b30a WD |
1156 | if (legal_len) |
1157 | *op++ = ' '; | |
417b5999 WD |
1158 | *op = '\0'; |
1159 | if (plen_ptr) | |
1160 | *plen_ptr = op - buf; | |
417b5999 WD |
1161 | return buf; |
1162 | } | |
c627d613 | 1163 | |
fdc79501 | 1164 | static void send_rules(int f_out, struct filter_list_struct *flp) |
c627d613 | 1165 | { |
ed243f8c | 1166 | struct filter_struct *ent, *prev = NULL; |
25cf8893 | 1167 | |
fdc79501 | 1168 | for (ent = flp->head; ent; ent = ent->next) { |
417b5999 | 1169 | unsigned int len, plen, dlen; |
ed243f8c | 1170 | int elide = 0; |
417b5999 | 1171 | char *p; |
2fb139c1 | 1172 | |
f1678790 WD |
1173 | /* Note we need to check delete_excluded here in addition to |
1174 | * the code in parse_rule_tok() because some rules may have | |
48ecccce WD |
1175 | * been added before we found the --delete-excluded option. |
1176 | * We must also elide any CVS merge-file rules to avoid a | |
1177 | * backward compatibility problem, and we elide any no-prefix | |
1178 | * merge files as an optimization (since they can only have | |
1179 | * include/exclude rules). */ | |
ed243f8c WD |
1180 | if (ent->match_flags & MATCHFLG_SENDER_SIDE) |
1181 | elide = am_sender ? 1 : -1; | |
1182 | if (ent->match_flags & MATCHFLG_RECEIVER_SIDE) | |
1183 | elide = elide ? 0 : am_sender ? -1 : 1; | |
97bf86f8 | 1184 | else if (delete_excluded && !elide |
48ecccce WD |
1185 | && (!(ent->match_flags & MATCHFLG_PERDIR_MERGE) |
1186 | || ent->match_flags & MATCHFLG_NO_PREFIXES)) | |
ed243f8c WD |
1187 | elide = am_sender ? 1 : -1; |
1188 | if (elide < 0) { | |
1189 | if (prev) | |
1190 | prev->next = ent->next; | |
1191 | else | |
1192 | flp->head = ent->next; | |
1193 | } else | |
1194 | prev = ent; | |
1195 | if (elide > 0) | |
1196 | continue; | |
fdc79501 WD |
1197 | if (ent->match_flags & MATCHFLG_CVS_IGNORE |
1198 | && !(ent->match_flags & MATCHFLG_MERGE_FILE)) { | |
98e47414 | 1199 | int f = am_sender || protocol_version < 29 ? f_out : -2; |
ed243f8c | 1200 | send_rules(f, &cvs_filter_list); |
98e47414 | 1201 | if (f == f_out) |
417b5999 | 1202 | continue; |
fdc79501 WD |
1203 | } |
1204 | p = get_rule_prefix(ent->match_flags, ent->pattern, 1, &plen); | |
1205 | if (!p) { | |
417b5999 | 1206 | rprintf(FERROR, |
fdc79501 | 1207 | "filter rules are too modern for remote rsync.\n"); |
caf8299e | 1208 | exit_cleanup(RERR_PROTOCOL); |
5f5be796 | 1209 | } |
ed243f8c WD |
1210 | if (f_out < 0) |
1211 | continue; | |
fdc79501 | 1212 | len = strlen(ent->pattern); |
417b5999 | 1213 | dlen = ent->match_flags & MATCHFLG_DIRECTORY ? 1 : 0; |
fdc79501 WD |
1214 | if (!(plen + len + dlen)) |
1215 | continue; | |
1216 | write_int(f_out, plen + len + dlen); | |
417b5999 | 1217 | if (plen) |
fdc79501 WD |
1218 | write_buf(f_out, p, plen); |
1219 | write_buf(f_out, ent->pattern, len); | |
417b5999 | 1220 | if (dlen) |
fdc79501 | 1221 | write_byte(f_out, '/'); |
0f2ac855 | 1222 | } |
ed243f8c | 1223 | flp->tail = prev; |
c627d613 AT |
1224 | } |
1225 | ||
fdc79501 WD |
1226 | /* This is only called by the client. */ |
1227 | void send_filter_list(int f_out) | |
1228 | { | |
d5782b52 WD |
1229 | int receiver_wants_list = prune_empty_dirs |
1230 | || (delete_mode && (!delete_excluded || protocol_version >= 29)); | |
448797a1 WD |
1231 | |
1232 | if (local_server || (am_sender && !receiver_wants_list)) | |
fdc79501 WD |
1233 | f_out = -1; |
1234 | if (cvs_exclude && am_sender) { | |
1235 | if (protocol_version >= 29) | |
1236 | parse_rule(&filter_list, ":C", 0, 0); | |
1237 | parse_rule(&filter_list, "-C", 0, 0); | |
1238 | } | |
c627d613 | 1239 | |
ed243f8c WD |
1240 | send_rules(f_out, &filter_list); |
1241 | ||
1242 | if (f_out >= 0) | |
fdc79501 | 1243 | write_int(f_out, 0); |
fdc79501 WD |
1244 | |
1245 | if (cvs_exclude) { | |
1246 | if (!am_sender || protocol_version < 29) | |
1247 | parse_rule(&filter_list, ":C", 0, 0); | |
1248 | if (!am_sender) | |
1249 | parse_rule(&filter_list, "-C", 0, 0); | |
1250 | } | |
1251 | } | |
1252 | ||
1253 | /* This is only called by the server. */ | |
1254 | void recv_filter_list(int f_in) | |
c627d613 | 1255 | { |
3fac51e2 | 1256 | char line[BIGPATHBUFLEN]; |
fdc79501 | 1257 | int xflags = protocol_version >= 29 ? 0 : XFLG_OLD_PREFIXES; |
d5782b52 | 1258 | int receiver_wants_list = prune_empty_dirs |
e257c6c2 WD |
1259 | || (delete_mode |
1260 | && (!delete_excluded || protocol_version >= 29)); | |
fdc79501 WD |
1261 | unsigned int len; |
1262 | ||
448797a1 | 1263 | if (!local_server && (am_sender || receiver_wants_list)) { |
fdc79501 WD |
1264 | while ((len = read_int(f_in)) != 0) { |
1265 | if (len >= sizeof line) | |
a1f99493 | 1266 | overflow_exit("recv_rules"); |
fdc79501 WD |
1267 | read_sbuf(f_in, line, len); |
1268 | parse_rule(&filter_list, line, 0, xflags); | |
1269 | } | |
1270 | } | |
9dd891bb | 1271 | |
fdc79501 | 1272 | if (cvs_exclude) { |
1412da7c | 1273 | if (local_server || am_sender || protocol_version < 29) |
fdc79501 | 1274 | parse_rule(&filter_list, ":C", 0, 0); |
1412da7c | 1275 | if (local_server || am_sender) |
fdc79501 | 1276 | parse_rule(&filter_list, "-C", 0, 0); |
651443a7 | 1277 | } |
ed243f8c WD |
1278 | |
1279 | if (local_server) /* filter out any rules that aren't for us. */ | |
1280 | send_rules(-1, &filter_list); | |
651443a7 | 1281 | } |