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 | |
445640e8 | 7 | * Copyright (C) 2003-2009 Wayne Davison |
0f2ac855 | 8 | * |
07a874fd | 9 | * This program is free software; you can redistribute it and/or modify |
8e41b68e WD |
10 | * it under the terms of the GNU General Public License as published by |
11 | * the Free Software Foundation; either version 3 of the License, or | |
12 | * (at your option) any later version. | |
0f2ac855 | 13 | * |
07a874fd MP |
14 | * This program is distributed in the hope that it will be useful, |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
0f2ac855 | 18 | * |
e7c67065 | 19 | * You should have received a copy of the GNU General Public License along |
4fd842f9 | 20 | * with this program; if not, visit the http://fsf.org website. |
07a874fd | 21 | */ |
c627d613 | 22 | |
c627d613 AT |
23 | #include "rsync.h" |
24 | ||
25 | extern int verbose; | |
5a016db9 | 26 | extern int am_server; |
fdc79501 | 27 | extern int am_sender; |
40d38dc0 | 28 | extern int eol_nulls; |
6dfd07d0 | 29 | extern int io_error; |
1412da7c | 30 | extern int local_server; |
d5782b52 | 31 | extern int prune_empty_dirs; |
ccdb23bb | 32 | extern int ignore_perishable; |
fdc79501 WD |
33 | extern int delete_mode; |
34 | extern int delete_excluded; | |
35 | extern int cvs_exclude; | |
6dfd07d0 WD |
36 | extern int sanitize_paths; |
37 | extern int protocol_version; | |
bf39270e | 38 | extern int module_id; |
40d38dc0 WD |
39 | |
40 | extern char curr_dir[]; | |
6dfd07d0 WD |
41 | extern unsigned int curr_dir_len; |
42 | extern unsigned int module_dirlen; | |
c627d613 | 43 | |
7842418b | 44 | struct filter_list_struct filter_list = { 0, 0, "" }; |
c81a20fb | 45 | struct filter_list_struct cvs_filter_list = { 0, 0, " [global CVS]" }; |
819bfe45 | 46 | struct filter_list_struct daemon_filter_list = { 0, 0, " [daemon]" }; |
c627d613 | 47 | |
6dfd07d0 | 48 | /* Need room enough for ":MODS " prefix plus some room to grow. */ |
7842418b | 49 | #define MAX_RULE_PREFIX (16) |
6dfd07d0 | 50 | |
d727f0ff | 51 | #define MODIFIERS_MERGE_FILE "-+Cenw" |
ccdb23bb WD |
52 | #define MODIFIERS_INCL_EXCL "/!Crsp" |
53 | #define MODIFIERS_HIDE_PROTECT "/!p" | |
b6f06b8e | 54 | |
f5aeb6ff WD |
55 | #define SLASH_WILD3_SUFFIX "/***" |
56 | ||
7842418b | 57 | /* The dirbuf is set by push_local_filters() to the current subdirectory |
6dfd07d0 WD |
58 | * relative to curr_dir that is being processed. The path always has a |
59 | * trailing slash appended, and the variable dirbuf_len contains the length | |
60 | * of this path prefix. The path is always absolute. */ | |
61 | static char dirbuf[MAXPATHLEN+1]; | |
62 | static unsigned int dirbuf_len = 0; | |
63 | static int dirbuf_depth; | |
64 | ||
65 | /* This is True when we're scanning parent dirs for per-dir merge-files. */ | |
66 | static BOOL parent_dirscan = False; | |
67 | ||
68 | /* This array contains a list of all the currently active per-dir merge | |
69 | * files. This makes it easier to save the appropriate values when we | |
70 | * "push" down into each subdirectory. */ | |
7842418b | 71 | static struct filter_struct **mergelist_parents; |
6dfd07d0 WD |
72 | static int mergelist_cnt = 0; |
73 | static int mergelist_size = 0; | |
74 | ||
7842418b | 75 | /* Each filter_list_struct describes a singly-linked list by keeping track |
6dfd07d0 WD |
76 | * of both the head and tail pointers. The list is slightly unusual in that |
77 | * a parent-dir's content can be appended to the end of the local list in a | |
78 | * special way: the last item in the local list has its "next" pointer set | |
79 | * to point to the inherited list, but the local list's tail pointer points | |
80 | * at the end of the local list. Thus, if the local list is empty, the head | |
81 | * will be pointing at the inherited content but the tail will be NULL. To | |
82 | * help you visualize this, here are the possible list arrangements: | |
83 | * | |
84 | * Completely Empty Local Content Only | |
85 | * ================================== ==================================== | |
86 | * head -> NULL head -> Local1 -> Local2 -> NULL | |
87 | * tail -> NULL tail -------------^ | |
88 | * | |
89 | * Inherited Content Only Both Local and Inherited Content | |
90 | * ================================== ==================================== | |
91 | * head -> Parent1 -> Parent2 -> NULL head -> L1 -> L2 -> P1 -> P2 -> NULL | |
92 | * tail -> NULL tail ---------^ | |
93 | * | |
94 | * This means that anyone wanting to traverse the whole list to use it just | |
95 | * needs to start at the head and use the "next" pointers until it goes | |
96 | * NULL. To add new local content, we insert the item after the tail item | |
97 | * and update the tail (obviously, if "tail" was NULL, we insert it at the | |
98 | * head). To clear the local list, WE MUST NOT FREE THE INHERITED CONTENT | |
99 | * because it is shared between the current list and our parent list(s). | |
100 | * The easiest way to handle this is to simply truncate the list after the | |
101 | * tail item and then free the local list from the head. When inheriting | |
7842418b | 102 | * the list for a new local dir, we just save off the filter_list_struct |
6dfd07d0 WD |
103 | * values (so we can pop back to them later) and set the tail to NULL. |
104 | */ | |
105 | ||
7842418b | 106 | static void free_filter(struct filter_struct *ex) |
6dfd07d0 WD |
107 | { |
108 | if (ex->match_flags & MATCHFLG_PERDIR_MERGE) { | |
109 | free(ex->u.mergelist->debug_type); | |
110 | free(ex->u.mergelist); | |
111 | mergelist_cnt--; | |
112 | } | |
113 | free(ex->pattern); | |
114 | free(ex); | |
115 | } | |
116 | ||
7842418b | 117 | /* Build a filter structure given a filter pattern. The value in "pat" |
6dfd07d0 | 118 | * is not null-terminated. */ |
fdc79501 WD |
119 | static void add_rule(struct filter_list_struct *listp, const char *pat, |
120 | unsigned int pat_len, uint32 mflags, int xflags) | |
c627d613 | 121 | { |
7842418b | 122 | struct filter_struct *ret; |
f8f72644 | 123 | const char *cp; |
f5aeb6ff | 124 | unsigned int pre_len, suf_len, slash_cnt = 0; |
c627d613 | 125 | |
6dfd07d0 | 126 | if (verbose > 2) { |
fdc79501 WD |
127 | rprintf(FINFO, "[%s] add_rule(%s%.*s%s)%s\n", |
128 | who_am_i(), get_rule_prefix(mflags, pat, 0, NULL), | |
129 | (int)pat_len, pat, | |
130 | (mflags & MATCHFLG_DIRECTORY) ? "/" : "", | |
6dfd07d0 WD |
131 | listp->debug_type); |
132 | } | |
133 | ||
4fc8140a | 134 | /* These flags also indicate that we're reading a list that |
6d7b3d52 | 135 | * needs to be filtered now, not post-filtered later. */ |
4fc8140a | 136 | if (xflags & (XFLG_ANCHORED2ABS|XFLG_ABS_IF_SLASH)) { |
6d7b3d52 WD |
137 | uint32 mf = mflags & (MATCHFLG_RECEIVER_SIDE|MATCHFLG_SENDER_SIDE); |
138 | if (am_sender) { | |
139 | if (mf == MATCHFLG_RECEIVER_SIDE) | |
140 | return; | |
141 | } else { | |
142 | if (mf == MATCHFLG_SENDER_SIDE) | |
143 | return; | |
144 | } | |
145 | } | |
146 | ||
7e4b6b7b | 147 | if (!(ret = new0(struct filter_struct))) |
fdc79501 | 148 | out_of_memory("add_rule"); |
2b6b4d53 | 149 | |
4c74d44d WD |
150 | if (pat_len > 1 && pat[pat_len-1] == '/') { |
151 | pat_len--; | |
152 | mflags |= MATCHFLG_DIRECTORY; | |
153 | } | |
154 | ||
155 | for (cp = pat; cp < pat + pat_len; cp++) { | |
156 | if (*cp == '/') | |
157 | slash_cnt++; | |
158 | } | |
159 | ||
4fc8140a WD |
160 | if (!(mflags & (MATCHFLG_ABS_PATH | MATCHFLG_MERGE_FILE)) |
161 | && ((xflags & (XFLG_ANCHORED2ABS|XFLG_ABS_IF_SLASH) && *pat == '/') | |
4c74d44d | 162 | || (xflags & XFLG_ABS_IF_SLASH && slash_cnt))) { |
bf39270e | 163 | mflags |= MATCHFLG_ABS_PATH; |
4fc8140a | 164 | if (*pat == '/') |
4a86fbcd | 165 | pre_len = dirbuf_len - module_dirlen - 1; |
4fc8140a | 166 | else |
4a86fbcd | 167 | pre_len = 0; |
6dfd07d0 | 168 | } else |
4a86fbcd | 169 | pre_len = 0; |
4c74d44d | 170 | |
f5aeb6ff WD |
171 | /* The daemon wants dir-exclude rules to get an appended "/" + "***". */ |
172 | if (xflags & XFLG_DIR2WILD3 | |
173 | && BITS_SETnUNSET(mflags, MATCHFLG_DIRECTORY, MATCHFLG_INCLUDE)) { | |
174 | mflags &= ~MATCHFLG_DIRECTORY; | |
175 | suf_len = sizeof SLASH_WILD3_SUFFIX - 1; | |
176 | } else | |
177 | suf_len = 0; | |
178 | ||
179 | if (!(ret->pattern = new_array(char, pre_len + pat_len + suf_len + 1))) | |
fdc79501 | 180 | out_of_memory("add_rule"); |
4c74d44d | 181 | if (pre_len) { |
4a86fbcd | 182 | memcpy(ret->pattern, dirbuf + module_dirlen, pre_len); |
4c74d44d WD |
183 | for (cp = ret->pattern; cp < ret->pattern + pre_len; cp++) { |
184 | if (*cp == '/') | |
185 | slash_cnt++; | |
186 | } | |
187 | } | |
4a86fbcd WD |
188 | strlcpy(ret->pattern + pre_len, pat, pat_len + 1); |
189 | pat_len += pre_len; | |
f5aeb6ff WD |
190 | if (suf_len) { |
191 | memcpy(ret->pattern + pat_len, SLASH_WILD3_SUFFIX, suf_len+1); | |
192 | pat_len += suf_len; | |
193 | slash_cnt++; | |
194 | } | |
f8f72644 WD |
195 | |
196 | if (strpbrk(ret->pattern, "*[?")) { | |
5e972dcf | 197 | mflags |= MATCHFLG_WILD; |
96d3590a | 198 | if ((cp = strstr(ret->pattern, "**")) != NULL) { |
5e972dcf | 199 | mflags |= MATCHFLG_WILD2; |
170381c0 | 200 | /* If the pattern starts with **, note that. */ |
96d3590a | 201 | if (cp == ret->pattern) |
5e972dcf | 202 | mflags |= MATCHFLG_WILD2_PREFIX; |
e5daa273 WD |
203 | /* If the pattern ends with ***, note that. */ |
204 | if (pat_len >= 3 | |
205 | && ret->pattern[pat_len-3] == '*' | |
206 | && ret->pattern[pat_len-2] == '*' | |
207 | && ret->pattern[pat_len-1] == '*') | |
208 | mflags |= MATCHFLG_WILD3_SUFFIX; | |
0f2ac855 | 209 | } |
2bca43f6 | 210 | } |
c627d613 | 211 | |
6dfd07d0 | 212 | if (mflags & MATCHFLG_PERDIR_MERGE) { |
7842418b | 213 | struct filter_list_struct *lp; |
6dfd07d0 WD |
214 | unsigned int len; |
215 | int i; | |
216 | ||
217 | if ((cp = strrchr(ret->pattern, '/')) != NULL) | |
218 | cp++; | |
219 | else | |
220 | cp = ret->pattern; | |
221 | ||
222 | /* If the local merge file was already mentioned, don't | |
223 | * add it again. */ | |
224 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b | 225 | struct filter_struct *ex = mergelist_parents[i]; |
6dfd07d0 WD |
226 | const char *s = strrchr(ex->pattern, '/'); |
227 | if (s) | |
bf39270e | 228 | s++; |
6dfd07d0 | 229 | else |
bf39270e | 230 | s = ex->pattern; |
6dfd07d0 WD |
231 | len = strlen(s); |
232 | if (len == pat_len - (cp - ret->pattern) | |
233 | && memcmp(s, cp, len) == 0) { | |
7842418b | 234 | free_filter(ret); |
6dfd07d0 WD |
235 | return; |
236 | } | |
237 | } | |
238 | ||
7842418b | 239 | if (!(lp = new_array(struct filter_list_struct, 1))) |
fdc79501 | 240 | out_of_memory("add_rule"); |
6dfd07d0 | 241 | lp->head = lp->tail = NULL; |
fdc79501 WD |
242 | if (asprintf(&lp->debug_type, " [per-dir %s]", cp) < 0) |
243 | out_of_memory("add_rule"); | |
6dfd07d0 WD |
244 | ret->u.mergelist = lp; |
245 | ||
246 | if (mergelist_cnt == mergelist_size) { | |
247 | mergelist_size += 5; | |
248 | mergelist_parents = realloc_array(mergelist_parents, | |
7842418b | 249 | struct filter_struct *, |
6dfd07d0 WD |
250 | mergelist_size); |
251 | if (!mergelist_parents) | |
fdc79501 | 252 | out_of_memory("add_rule"); |
6dfd07d0 WD |
253 | } |
254 | mergelist_parents[mergelist_cnt++] = ret; | |
4c74d44d WD |
255 | } else |
256 | ret->u.slash_cnt = slash_cnt; | |
0944563e | 257 | |
c1b29492 WD |
258 | ret->match_flags = mflags; |
259 | ||
6dfd07d0 WD |
260 | if (!listp->tail) { |
261 | ret->next = listp->head; | |
b2aa573b | 262 | listp->head = listp->tail = ret; |
6dfd07d0 WD |
263 | } else { |
264 | ret->next = listp->tail->next; | |
b2aa573b WD |
265 | listp->tail->next = ret; |
266 | listp->tail = ret; | |
267 | } | |
2b6b4d53 AT |
268 | } |
269 | ||
7842418b | 270 | static void clear_filter_list(struct filter_list_struct *listp) |
2b6b4d53 | 271 | { |
6dfd07d0 | 272 | if (listp->tail) { |
7842418b | 273 | struct filter_struct *ent, *next; |
6dfd07d0 WD |
274 | /* Truncate any inherited items from the local list. */ |
275 | listp->tail->next = NULL; | |
276 | /* Now free everything that is left. */ | |
277 | for (ent = listp->head; ent; ent = next) { | |
278 | next = ent->next; | |
7842418b | 279 | free_filter(ent); |
6dfd07d0 WD |
280 | } |
281 | } | |
282 | ||
283 | listp->head = listp->tail = NULL; | |
2b6b4d53 | 284 | } |
c627d613 | 285 | |
6dfd07d0 WD |
286 | /* This returns an expanded (absolute) filename for the merge-file name if |
287 | * the name has any slashes in it OR if the parent_dirscan var is True; | |
288 | * otherwise it returns the original merge_file name. If the len_ptr value | |
289 | * is non-NULL the merge_file name is limited by the referenced length | |
290 | * value and will be updated with the length of the resulting name. We | |
291 | * always return a name that is null terminated, even if the merge_file | |
292 | * name was not. */ | |
293 | static char *parse_merge_name(const char *merge_file, unsigned int *len_ptr, | |
294 | unsigned int prefix_skip) | |
5be7fa93 | 295 | { |
6dfd07d0 WD |
296 | static char buf[MAXPATHLEN]; |
297 | char *fn, tmpbuf[MAXPATHLEN]; | |
298 | unsigned int fn_len; | |
299 | ||
300 | if (!parent_dirscan && *merge_file != '/') { | |
301 | /* Return the name unchanged it doesn't have any slashes. */ | |
302 | if (len_ptr) { | |
303 | const char *p = merge_file + *len_ptr; | |
304 | while (--p > merge_file && *p != '/') {} | |
305 | if (p == merge_file) { | |
306 | strlcpy(buf, merge_file, *len_ptr + 1); | |
307 | return buf; | |
308 | } | |
309 | } else if (strchr(merge_file, '/') == NULL) | |
310 | return (char *)merge_file; | |
311 | } | |
5be7fa93 | 312 | |
6dfd07d0 WD |
313 | fn = *merge_file == '/' ? buf : tmpbuf; |
314 | if (sanitize_paths) { | |
315 | const char *r = prefix_skip ? "/" : NULL; | |
316 | /* null-terminate the name if it isn't already */ | |
317 | if (len_ptr && merge_file[*len_ptr]) { | |
318 | char *to = fn == buf ? tmpbuf : buf; | |
319 | strlcpy(to, merge_file, *len_ptr + 1); | |
320 | merge_file = to; | |
321 | } | |
d48810ba | 322 | if (!sanitize_path(fn, merge_file, r, dirbuf_depth, SP_DEFAULT)) { |
6dfd07d0 | 323 | rprintf(FERROR, "merge-file name overflows: %s\n", |
45c49b52 | 324 | merge_file); |
6dfd07d0 WD |
325 | return NULL; |
326 | } | |
798cde47 | 327 | fn_len = strlen(fn); |
6dfd07d0 WD |
328 | } else { |
329 | strlcpy(fn, merge_file, len_ptr ? *len_ptr + 1 : MAXPATHLEN); | |
b58bfb2f | 330 | fn_len = clean_fname(fn, CFN_COLLAPSE_DOT_DOT_DIRS); |
b2aa573b | 331 | } |
0f78b815 | 332 | |
798cde47 WD |
333 | /* If the name isn't in buf yet, it's wasn't absolute. */ |
334 | if (fn != buf) { | |
9793bbb3 WD |
335 | int d_len = dirbuf_len - prefix_skip; |
336 | if (d_len + fn_len >= MAXPATHLEN) { | |
798cde47 WD |
337 | rprintf(FERROR, "merge-file name overflows: %s\n", fn); |
338 | return NULL; | |
339 | } | |
9793bbb3 WD |
340 | memcpy(buf, dirbuf + prefix_skip, d_len); |
341 | memcpy(buf + d_len, fn, fn_len + 1); | |
b58bfb2f | 342 | fn_len = clean_fname(buf, CFN_COLLAPSE_DOT_DOT_DIRS); |
6dfd07d0 | 343 | } |
6dfd07d0 | 344 | |
6dfd07d0 WD |
345 | if (len_ptr) |
346 | *len_ptr = fn_len; | |
347 | return buf; | |
348 | } | |
5be7fa93 | 349 | |
6dfd07d0 | 350 | /* Sets the dirbuf and dirbuf_len values. */ |
7842418b | 351 | void set_filter_dir(const char *dir, unsigned int dirlen) |
6dfd07d0 WD |
352 | { |
353 | unsigned int len; | |
354 | if (*dir != '/') { | |
355 | memcpy(dirbuf, curr_dir, curr_dir_len); | |
356 | dirbuf[curr_dir_len] = '/'; | |
357 | len = curr_dir_len + 1; | |
358 | if (len + dirlen >= MAXPATHLEN) | |
359 | dirlen = 0; | |
360 | } else | |
361 | len = 0; | |
362 | memcpy(dirbuf + len, dir, dirlen); | |
363 | dirbuf[dirlen + len] = '\0'; | |
b58bfb2f | 364 | dirbuf_len = clean_fname(dirbuf, CFN_COLLAPSE_DOT_DOT_DIRS); |
6dfd07d0 WD |
365 | if (dirbuf_len > 1 && dirbuf[dirbuf_len-1] == '.' |
366 | && dirbuf[dirbuf_len-2] == '/') | |
367 | dirbuf_len -= 2; | |
368 | if (dirbuf_len != 1) | |
369 | dirbuf[dirbuf_len++] = '/'; | |
370 | dirbuf[dirbuf_len] = '\0'; | |
371 | if (sanitize_paths) | |
372 | dirbuf_depth = count_dir_elements(dirbuf + module_dirlen); | |
373 | } | |
374 | ||
375 | /* This routine takes a per-dir merge-file entry and finishes its setup. | |
376 | * If the name has a path portion then we check to see if it refers to a | |
377 | * parent directory of the first transfer dir. If it does, we scan all the | |
378 | * dirs from that point through the parent dir of the transfer dir looking | |
379 | * for the per-dir merge-file in each one. */ | |
7842418b | 380 | static BOOL setup_merge_file(struct filter_struct *ex, |
b6f06b8e | 381 | struct filter_list_struct *lp) |
6dfd07d0 WD |
382 | { |
383 | char buf[MAXPATHLEN]; | |
384 | char *x, *y, *pat = ex->pattern; | |
385 | unsigned int len; | |
386 | ||
387 | if (!(x = parse_merge_name(pat, NULL, 0)) || *x != '/') | |
388 | return 0; | |
389 | ||
390 | y = strrchr(x, '/'); | |
391 | *y = '\0'; | |
392 | ex->pattern = strdup(y+1); | |
393 | if (!*x) | |
394 | x = "/"; | |
395 | if (*x == '/') | |
396 | strlcpy(buf, x, MAXPATHLEN); | |
397 | else | |
398 | pathjoin(buf, MAXPATHLEN, dirbuf, x); | |
399 | ||
b58bfb2f | 400 | len = clean_fname(buf, CFN_COLLAPSE_DOT_DOT_DIRS); |
6dfd07d0 WD |
401 | if (len != 1 && len < MAXPATHLEN-1) { |
402 | buf[len++] = '/'; | |
403 | buf[len] = '\0'; | |
404 | } | |
405 | /* This ensures that the specified dir is a parent of the transfer. */ | |
406 | for (x = buf, y = dirbuf; *x && *x == *y; x++, y++) {} | |
407 | if (*x) | |
408 | y += strlen(y); /* nope -- skip the scan */ | |
409 | ||
410 | parent_dirscan = True; | |
411 | while (*y) { | |
412 | char save[MAXPATHLEN]; | |
413 | strlcpy(save, y, MAXPATHLEN); | |
414 | *y = '\0'; | |
415 | dirbuf_len = y - dirbuf; | |
416 | strlcpy(x, ex->pattern, MAXPATHLEN - (x - buf)); | |
fdc79501 | 417 | parse_filter_file(lp, buf, ex->match_flags, XFLG_ANCHORED2ABS); |
6dfd07d0 WD |
418 | if (ex->match_flags & MATCHFLG_NO_INHERIT) |
419 | lp->head = NULL; | |
420 | lp->tail = NULL; | |
421 | strlcpy(y, save, MAXPATHLEN); | |
422 | while ((*x++ = *y++) != '/') {} | |
423 | } | |
424 | parent_dirscan = False; | |
425 | free(pat); | |
426 | return 1; | |
427 | } | |
428 | ||
429 | /* Each time rsync changes to a new directory it call this function to | |
430 | * handle all the per-dir merge-files. The "dir" value is the current path | |
431 | * relative to curr_dir (which might not be null-terminated). We copy it | |
432 | * into dirbuf so that we can easily append a file name on the end. */ | |
7842418b | 433 | void *push_local_filters(const char *dir, unsigned int dirlen) |
6dfd07d0 | 434 | { |
7842418b | 435 | struct filter_list_struct *ap, *push; |
6dfd07d0 WD |
436 | int i; |
437 | ||
7842418b | 438 | set_filter_dir(dir, dirlen); |
6dfd07d0 | 439 | |
a2b371cd WD |
440 | if (!mergelist_cnt) |
441 | return NULL; | |
442 | ||
7842418b | 443 | push = new_array(struct filter_list_struct, mergelist_cnt); |
6dfd07d0 | 444 | if (!push) |
7842418b | 445 | out_of_memory("push_local_filters"); |
6dfd07d0 WD |
446 | |
447 | for (i = 0, ap = push; i < mergelist_cnt; i++) { | |
448 | memcpy(ap++, mergelist_parents[i]->u.mergelist, | |
7842418b | 449 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
450 | } |
451 | ||
fdc79501 | 452 | /* Note: parse_filter_file() might increase mergelist_cnt, so keep |
6dfd07d0 WD |
453 | * this loop separate from the above loop. */ |
454 | for (i = 0; i < mergelist_cnt; i++) { | |
7842418b WD |
455 | struct filter_struct *ex = mergelist_parents[i]; |
456 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
457 | |
458 | if (verbose > 2) { | |
7842418b | 459 | rprintf(FINFO, "[%s] pushing filter list%s\n", |
6dfd07d0 WD |
460 | who_am_i(), lp->debug_type); |
461 | } | |
462 | ||
463 | lp->tail = NULL; /* Switch any local rules to inherited. */ | |
464 | if (ex->match_flags & MATCHFLG_NO_INHERIT) | |
465 | lp->head = NULL; | |
6dfd07d0 WD |
466 | |
467 | if (ex->match_flags & MATCHFLG_FINISH_SETUP) { | |
468 | ex->match_flags &= ~MATCHFLG_FINISH_SETUP; | |
b6f06b8e | 469 | if (setup_merge_file(ex, lp)) |
7842418b | 470 | set_filter_dir(dir, dirlen); |
6dfd07d0 WD |
471 | } |
472 | ||
473 | if (strlcpy(dirbuf + dirbuf_len, ex->pattern, | |
b6f06b8e | 474 | MAXPATHLEN - dirbuf_len) < MAXPATHLEN - dirbuf_len) { |
fdc79501 WD |
475 | parse_filter_file(lp, dirbuf, ex->match_flags, |
476 | XFLG_ANCHORED2ABS); | |
b6f06b8e | 477 | } else { |
6dfd07d0 | 478 | io_error |= IOERR_GENERAL; |
9ed56948 | 479 | rprintf(FERROR, |
7842418b | 480 | "cannot add local filter rules in long-named directory: %s\n", |
6dfd07d0 WD |
481 | full_fname(dirbuf)); |
482 | } | |
483 | dirbuf[dirbuf_len] = '\0'; | |
484 | } | |
485 | ||
486 | return (void*)push; | |
487 | } | |
488 | ||
7842418b | 489 | void pop_local_filters(void *mem) |
6dfd07d0 | 490 | { |
7842418b | 491 | struct filter_list_struct *ap, *pop = (struct filter_list_struct*)mem; |
6dfd07d0 WD |
492 | int i; |
493 | ||
494 | for (i = mergelist_cnt; i-- > 0; ) { | |
7842418b WD |
495 | struct filter_struct *ex = mergelist_parents[i]; |
496 | struct filter_list_struct *lp = ex->u.mergelist; | |
6dfd07d0 WD |
497 | |
498 | if (verbose > 2) { | |
7842418b | 499 | rprintf(FINFO, "[%s] popping filter list%s\n", |
6dfd07d0 WD |
500 | who_am_i(), lp->debug_type); |
501 | } | |
502 | ||
7842418b | 503 | clear_filter_list(lp); |
6dfd07d0 WD |
504 | } |
505 | ||
a2b371cd WD |
506 | if (!pop) |
507 | return; | |
508 | ||
6dfd07d0 WD |
509 | for (i = 0, ap = pop; i < mergelist_cnt; i++) { |
510 | memcpy(mergelist_parents[i]->u.mergelist, ap++, | |
7842418b | 511 | sizeof (struct filter_list_struct)); |
6dfd07d0 WD |
512 | } |
513 | ||
514 | free(pop); | |
5be7fa93 WD |
515 | } |
516 | ||
fe04532a WD |
517 | void change_local_filter_dir(const char *dname, int dlen, int dir_depth) |
518 | { | |
7fa60281 | 519 | static int cur_depth = -1; |
fe04532a WD |
520 | static void *filt_array[MAXPATHLEN/2+1]; |
521 | ||
522 | if (!dname) { | |
7fa60281 WD |
523 | for ( ; cur_depth >= 0; cur_depth--) { |
524 | if (filt_array[cur_depth]) { | |
525 | pop_local_filters(filt_array[cur_depth]); | |
526 | filt_array[cur_depth] = NULL; | |
527 | } | |
528 | } | |
fe04532a WD |
529 | return; |
530 | } | |
531 | ||
532 | assert(dir_depth < MAXPATHLEN/2+1); | |
533 | ||
7fa60281 WD |
534 | for ( ; cur_depth >= dir_depth; cur_depth--) { |
535 | if (filt_array[cur_depth]) { | |
536 | pop_local_filters(filt_array[cur_depth]); | |
537 | filt_array[cur_depth] = NULL; | |
538 | } | |
539 | } | |
fe04532a | 540 | |
7fa60281 | 541 | cur_depth = dir_depth; |
fe04532a WD |
542 | filt_array[cur_depth] = push_local_filters(dname, dlen); |
543 | } | |
544 | ||
ffe8feb2 | 545 | static int rule_matches(const char *fname, struct filter_struct *ex, int name_is_dir) |
2b6b4d53 | 546 | { |
e5daa273 | 547 | int slash_handling, str_cnt = 0, anchored_match = 0; |
f2ae9e85 | 548 | int ret_match = ex->match_flags & MATCHFLG_NEGATE ? 0 : 1; |
e5daa273 WD |
549 | char *p, *pattern = ex->pattern; |
550 | const char *strings[16]; /* more than enough */ | |
ffe8feb2 | 551 | const char *name = fname + (*fname == '/'); |
2b6b4d53 | 552 | |
9f186578 WD |
553 | if (!*name) |
554 | return 0; | |
555 | ||
6dfd07d0 | 556 | if (!ex->u.slash_cnt && !(ex->match_flags & MATCHFLG_WILD2)) { |
770de899 WD |
557 | /* If the pattern does not have any slashes AND it does |
558 | * not have a "**" (which could match a slash), then we | |
559 | * just match the name portion of the path. */ | |
5be7fa93 WD |
560 | if ((p = strrchr(name,'/')) != NULL) |
561 | name = p+1; | |
c291d057 | 562 | } else if (ex->match_flags & MATCHFLG_ABS_PATH && *fname != '/' |
6dfd07d0 | 563 | && curr_dir_len > module_dirlen + 1) { |
770de899 WD |
564 | /* If we're matching against an absolute-path pattern, |
565 | * we need to prepend our full path info. */ | |
e5daa273 WD |
566 | strings[str_cnt++] = curr_dir + module_dirlen + 1; |
567 | strings[str_cnt++] = "/"; | |
c291d057 | 568 | } else if (ex->match_flags & MATCHFLG_WILD2_PREFIX && *fname != '/') { |
e5daa273 WD |
569 | /* Allow "**"+"/" to match at the start of the string. */ |
570 | strings[str_cnt++] = "/"; | |
5be7fa93 | 571 | } |
e5daa273 WD |
572 | strings[str_cnt++] = name; |
573 | if (name_is_dir) { | |
574 | /* Allow a trailing "/"+"***" to match the directory. */ | |
575 | if (ex->match_flags & MATCHFLG_WILD3_SUFFIX) | |
576 | strings[str_cnt++] = "/"; | |
577 | } else if (ex->match_flags & MATCHFLG_DIRECTORY) | |
f2ae9e85 | 578 | return !ret_match; |
e5daa273 | 579 | strings[str_cnt] = NULL; |
2b6b4d53 | 580 | |
170381c0 | 581 | if (*pattern == '/') { |
770de899 | 582 | anchored_match = 1; |
2b6b4d53 AT |
583 | pattern++; |
584 | } | |
585 | ||
e5daa273 WD |
586 | if (!anchored_match && ex->u.slash_cnt |
587 | && !(ex->match_flags & MATCHFLG_WILD2)) { | |
170381c0 WD |
588 | /* A non-anchored match with an infix slash and no "**" |
589 | * needs to match the last slash_cnt+1 name elements. */ | |
e5daa273 WD |
590 | slash_handling = ex->u.slash_cnt + 1; |
591 | } else if (!anchored_match && !(ex->match_flags & MATCHFLG_WILD2_PREFIX) | |
592 | && ex->match_flags & MATCHFLG_WILD2) { | |
593 | /* A non-anchored match with an infix or trailing "**" (but not | |
594 | * a prefixed "**") needs to try matching after every slash. */ | |
595 | slash_handling = -1; | |
596 | } else { | |
597 | /* The pattern matches only at the start of the path or name. */ | |
598 | slash_handling = 0; | |
599 | } | |
600 | ||
601 | if (ex->match_flags & MATCHFLG_WILD) { | |
602 | if (wildmatch_array(pattern, strings, slash_handling)) | |
603 | return ret_match; | |
604 | } else if (str_cnt > 1) { | |
605 | if (litmatch_array(pattern, strings, slash_handling)) | |
f2ae9e85 | 606 | return ret_match; |
770de899 | 607 | } else if (anchored_match) { |
48ecccce | 608 | if (strcmp(name, pattern) == 0) |
f2ae9e85 | 609 | return ret_match; |
2b6b4d53 AT |
610 | } else { |
611 | int l1 = strlen(name); | |
ea2111d1 | 612 | int l2 = strlen(pattern); |
0f2ac855 | 613 | if (l2 <= l1 && |
ea2111d1 | 614 | strcmp(name+(l1-l2),pattern) == 0 && |
170381c0 | 615 | (l1==l2 || name[l1-(l2+1)] == '/')) { |
f2ae9e85 | 616 | return ret_match; |
c36cd317 | 617 | } |
2b6b4d53 AT |
618 | } |
619 | ||
f2ae9e85 | 620 | return !ret_match; |
c627d613 AT |
621 | } |
622 | ||
623 | ||
1df02d13 | 624 | static void report_filter_result(enum logcode code, char const *name, |
7842418b WD |
625 | struct filter_struct const *ent, |
626 | int name_is_dir, const char *type) | |
d567322f | 627 | { |
0f2ac855 | 628 | /* If a trailing slash is present to match only directories, |
fdc79501 | 629 | * then it is stripped out by add_rule(). So as a special |
0f2ac855 WD |
630 | * case we add it back in here. */ |
631 | ||
ea847c62 | 632 | if (verbose >= 2) { |
d5782b52 WD |
633 | static char *actions[2][2] |
634 | = { {"show", "hid"}, {"risk", "protect"} }; | |
635 | const char *w = who_am_i(); | |
1df02d13 | 636 | rprintf(code, "[%s] %sing %s %s because of pattern %s%s%s\n", |
d5782b52 WD |
637 | w, actions[*w!='s'][!(ent->match_flags&MATCHFLG_INCLUDE)], |
638 | name_is_dir ? "directory" : "file", name, ent->pattern, | |
639 | ent->match_flags & MATCHFLG_DIRECTORY ? "/" : "", type); | |
ea847c62 | 640 | } |
d567322f MP |
641 | } |
642 | ||
643 | ||
644 | /* | |
a6536635 WD |
645 | * Return -1 if file "name" is defined to be excluded by the specified |
646 | * exclude list, 1 if it is included, and 0 if it was not matched. | |
d567322f | 647 | */ |
1df02d13 WD |
648 | int check_filter(struct filter_list_struct *listp, enum logcode code, |
649 | const char *name, int name_is_dir) | |
c627d613 | 650 | { |
7842418b | 651 | struct filter_struct *ent; |
c627d613 | 652 | |
b2aa573b | 653 | for (ent = listp->head; ent; ent = ent->next) { |
ccdb23bb WD |
654 | if (ignore_perishable && ent->match_flags & MATCHFLG_PERISHABLE) |
655 | continue; | |
6dfd07d0 | 656 | if (ent->match_flags & MATCHFLG_PERDIR_MERGE) { |
1df02d13 | 657 | int rc = check_filter(ent->u.mergelist, code, name, |
7842418b | 658 | name_is_dir); |
6dfd07d0 WD |
659 | if (rc) |
660 | return rc; | |
661 | continue; | |
662 | } | |
fdc79501 | 663 | if (ent->match_flags & MATCHFLG_CVS_IGNORE) { |
1df02d13 | 664 | int rc = check_filter(&cvs_filter_list, code, name, |
fdc79501 WD |
665 | name_is_dir); |
666 | if (rc) | |
667 | return rc; | |
668 | continue; | |
669 | } | |
7842418b | 670 | if (rule_matches(name, ent, name_is_dir)) { |
1df02d13 WD |
671 | report_filter_result(code, name, ent, name_is_dir, |
672 | listp->debug_type); | |
5e972dcf | 673 | return ent->match_flags & MATCHFLG_INCLUDE ? 1 : -1; |
0f2ac855 | 674 | } |
2b6b4d53 | 675 | } |
c627d613 | 676 | |
2b6b4d53 | 677 | return 0; |
c627d613 AT |
678 | } |
679 | ||
345e0988 | 680 | #define RULE_STRCMP(s,r) rule_strcmp((s), (r), sizeof (r) - 1) |
a1ac8edd | 681 | |
4adbb5f2 | 682 | static const uchar *rule_strcmp(const uchar *str, const char *rule, int rule_len) |
a1ac8edd | 683 | { |
4adbb5f2 | 684 | if (strncmp((char*)str, rule, rule_len) != 0) |
a1ac8edd WD |
685 | return NULL; |
686 | if (isspace(str[rule_len]) || str[rule_len] == '_' || !str[rule_len]) | |
687 | return str + rule_len - 1; | |
688 | if (str[rule_len] == ',') | |
689 | return str + rule_len; | |
690 | return NULL; | |
691 | } | |
c627d613 | 692 | |
f8f72644 WD |
693 | /* Get the next include/exclude arg from the string. The token will not |
694 | * be '\0' terminated, so use the returned length to limit the string. | |
695 | * Also, be sure to add this length to the returned pointer before passing | |
e425fbe8 | 696 | * it back to ask for the next token. This routine parses the "!" (list- |
b6f06b8e WD |
697 | * clearing) token and (depending on the mflags) the various prefixes. |
698 | * The *mflags_ptr value will be set on exit to the new MATCHFLG_* bits | |
699 | * for the current token. */ | |
fdc79501 WD |
700 | static const char *parse_rule_tok(const char *p, uint32 mflags, int xflags, |
701 | unsigned int *len_ptr, uint32 *mflags_ptr) | |
f8f72644 | 702 | { |
fdc79501 WD |
703 | const uchar *s = (const uchar *)p; |
704 | uint32 new_mflags; | |
705 | unsigned int len; | |
f8f72644 | 706 | |
b6f06b8e | 707 | if (mflags & MATCHFLG_WORD_SPLIT) { |
96d3590a WD |
708 | /* Skip over any initial whitespace. */ |
709 | while (isspace(*s)) | |
f8f72644 | 710 | s++; |
6dfd07d0 | 711 | /* Update to point to real start of rule. */ |
abca4eba | 712 | p = (const char *)s; |
f8f72644 | 713 | } |
6dfd07d0 WD |
714 | if (!*s) |
715 | return NULL; | |
716 | ||
b6f06b8e WD |
717 | new_mflags = mflags & MATCHFLGS_FROM_CONTAINER; |
718 | ||
719 | /* Figure out what kind of a filter rule "s" is pointing at. Note | |
720 | * that if MATCHFLG_NO_PREFIXES is set, the rule is either an include | |
721 | * or an exclude based on the inheritance of the MATCHFLG_INCLUDE | |
722 | * flag (above). XFLG_OLD_PREFIXES indicates a compatibility mode | |
723 | * for old include/exclude patterns where just "+ " and "- " are | |
724 | * allowed as optional prefixes. */ | |
725 | if (mflags & MATCHFLG_NO_PREFIXES) { | |
a1ac8edd | 726 | if (*s == '!' && mflags & MATCHFLG_CVS_IGNORE) |
b6f06b8e WD |
727 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
728 | } else if (xflags & XFLG_OLD_PREFIXES) { | |
729 | if (*s == '-' && s[1] == ' ') { | |
730 | new_mflags &= ~MATCHFLG_INCLUDE; | |
731 | s += 2; | |
732 | } else if (*s == '+' && s[1] == ' ') { | |
733 | new_mflags |= MATCHFLG_INCLUDE; | |
734 | s += 2; | |
664cf327 | 735 | } else if (*s == '!') |
b6f06b8e WD |
736 | new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */ |
737 | } else { | |
a1ac8edd | 738 | char ch = 0, *mods = ""; |
6dfd07d0 | 739 | switch (*s) { |
a1ac8edd | 740 | case 'c': |
345e0988 | 741 | if ((s = RULE_STRCMP(s, "clear")) != NULL) |
a1ac8edd WD |
742 | ch = '!'; |
743 | break; | |
744 | case 'd': | |
345e0988 | 745 | if ((s = RULE_STRCMP(s, "dir-merge")) != NULL) |
a1ac8edd WD |
746 | ch = ':'; |
747 | break; | |
748 | case 'e': | |
345e0988 | 749 | if ((s = RULE_STRCMP(s, "exclude")) != NULL) |
a1ac8edd WD |
750 | ch = '-'; |
751 | break; | |
ed243f8c WD |
752 | case 'h': |
753 | if ((s = RULE_STRCMP(s, "hide")) != NULL) | |
754 | ch = 'H'; | |
755 | break; | |
a1ac8edd | 756 | case 'i': |
345e0988 | 757 | if ((s = RULE_STRCMP(s, "include")) != NULL) |
a1ac8edd WD |
758 | ch = '+'; |
759 | break; | |
760 | case 'm': | |
345e0988 | 761 | if ((s = RULE_STRCMP(s, "merge")) != NULL) |
a1ac8edd WD |
762 | ch = '.'; |
763 | break; | |
ed243f8c WD |
764 | case 'p': |
765 | if ((s = RULE_STRCMP(s, "protect")) != NULL) | |
766 | ch = 'P'; | |
767 | break; | |
768 | case 'r': | |
769 | if ((s = RULE_STRCMP(s, "risk")) != NULL) | |
770 | ch = 'R'; | |
771 | break; | |
772 | case 's': | |
773 | if ((s = RULE_STRCMP(s, "show")) != NULL) | |
774 | ch = 'S'; | |
775 | break; | |
a1ac8edd WD |
776 | default: |
777 | ch = *s; | |
64b761c1 WD |
778 | if (s[1] == ',') |
779 | s++; | |
a1ac8edd WD |
780 | break; |
781 | } | |
782 | switch (ch) { | |
6dfd07d0 | 783 | case ':': |
b6f06b8e WD |
784 | new_mflags |= MATCHFLG_PERDIR_MERGE |
785 | | MATCHFLG_FINISH_SETUP; | |
6dfd07d0 WD |
786 | /* FALL THROUGH */ |
787 | case '.': | |
b6f06b8e WD |
788 | new_mflags |= MATCHFLG_MERGE_FILE; |
789 | mods = MODIFIERS_INCL_EXCL MODIFIERS_MERGE_FILE; | |
6dfd07d0 WD |
790 | break; |
791 | case '+': | |
b6f06b8e | 792 | new_mflags |= MATCHFLG_INCLUDE; |
bf39270e | 793 | /* FALL THROUGH */ |
6dfd07d0 | 794 | case '-': |
b6f06b8e | 795 | mods = MODIFIERS_INCL_EXCL; |
6dfd07d0 | 796 | break; |
ed243f8c WD |
797 | case 'S': |
798 | new_mflags |= MATCHFLG_INCLUDE; | |
799 | /* FALL THROUGH */ | |
800 | case 'H': | |
801 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
802 | mods = MODIFIERS_HIDE_PROTECT; | |
803 | break; | |
804 | case 'R': | |
805 | new_mflags |= MATCHFLG_INCLUDE; | |
806 | /* FALL THROUGH */ | |
807 | case 'P': | |
808 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
809 | mods = MODIFIERS_HIDE_PROTECT; | |
810 | break; | |
6dfd07d0 | 811 | case '!': |
b6f06b8e | 812 | new_mflags |= MATCHFLG_CLEAR_LIST; |
6dfd07d0 WD |
813 | mods = NULL; |
814 | break; | |
815 | default: | |
ac1cb938 | 816 | rprintf(FERROR, "Unknown filter rule: `%s'\n", p); |
6dfd07d0 WD |
817 | exit_cleanup(RERR_SYNTAX); |
818 | } | |
bf39270e | 819 | while (mods && *++s && *s != ' ' && *s != '_') { |
6dfd07d0 | 820 | if (strchr(mods, *s) == NULL) { |
b6f06b8e | 821 | if (mflags & MATCHFLG_WORD_SPLIT && isspace(*s)) { |
6dfd07d0 WD |
822 | s--; |
823 | break; | |
824 | } | |
b6f06b8e | 825 | invalid: |
6dfd07d0 | 826 | rprintf(FERROR, |
b6f06b8e | 827 | "invalid modifier sequence at '%c' in filter rule: %s\n", |
6dfd07d0 WD |
828 | *s, p); |
829 | exit_cleanup(RERR_SYNTAX); | |
830 | } | |
831 | switch (*s) { | |
832 | case '-': | |
b6f06b8e WD |
833 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
834 | goto invalid; | |
835 | new_mflags |= MATCHFLG_NO_PREFIXES; | |
6dfd07d0 WD |
836 | break; |
837 | case '+': | |
b6f06b8e WD |
838 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
839 | goto invalid; | |
840 | new_mflags |= MATCHFLG_NO_PREFIXES | |
841 | | MATCHFLG_INCLUDE; | |
6dfd07d0 | 842 | break; |
bf39270e | 843 | case '/': |
b6f06b8e | 844 | new_mflags |= MATCHFLG_ABS_PATH; |
bf39270e | 845 | break; |
f2ae9e85 | 846 | case '!': |
b6f06b8e | 847 | new_mflags |= MATCHFLG_NEGATE; |
f2ae9e85 | 848 | break; |
6dfd07d0 | 849 | case 'C': |
b6f06b8e WD |
850 | if (new_mflags & MATCHFLG_NO_PREFIXES) |
851 | goto invalid; | |
b6f06b8e WD |
852 | new_mflags |= MATCHFLG_NO_PREFIXES |
853 | | MATCHFLG_WORD_SPLIT | |
fdc79501 WD |
854 | | MATCHFLG_NO_INHERIT |
855 | | MATCHFLG_CVS_IGNORE; | |
6dfd07d0 WD |
856 | break; |
857 | case 'e': | |
b6f06b8e | 858 | new_mflags |= MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
859 | break; |
860 | case 'n': | |
b6f06b8e | 861 | new_mflags |= MATCHFLG_NO_INHERIT; |
6dfd07d0 | 862 | break; |
ccdb23bb WD |
863 | case 'p': |
864 | new_mflags |= MATCHFLG_PERISHABLE; | |
865 | break; | |
ed243f8c WD |
866 | case 'r': |
867 | new_mflags |= MATCHFLG_RECEIVER_SIDE; | |
868 | break; | |
869 | case 's': | |
870 | new_mflags |= MATCHFLG_SENDER_SIDE; | |
871 | break; | |
0b2901b7 | 872 | case 'w': |
b6f06b8e | 873 | new_mflags |= MATCHFLG_WORD_SPLIT; |
6dfd07d0 WD |
874 | break; |
875 | } | |
876 | } | |
877 | if (*s) | |
878 | s++; | |
6dfd07d0 WD |
879 | } |
880 | ||
b6f06b8e | 881 | if (mflags & MATCHFLG_WORD_SPLIT) { |
fdc79501 | 882 | const uchar *cp = s; |
96d3590a WD |
883 | /* Token ends at whitespace or the end of the string. */ |
884 | while (!isspace(*cp) && *cp != '\0') | |
885 | cp++; | |
886 | len = cp - s; | |
887 | } else | |
0eeb1cf8 | 888 | len = strlen((char*)s); |
96d3590a | 889 | |
b6f06b8e | 890 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
35a388b1 WD |
891 | if (!(mflags & MATCHFLG_NO_PREFIXES) |
892 | && !(xflags & XFLG_OLD_PREFIXES) && len) { | |
6dfd07d0 WD |
893 | rprintf(FERROR, |
894 | "'!' rule has trailing characters: %s\n", p); | |
895 | exit_cleanup(RERR_SYNTAX); | |
896 | } | |
897 | if (len > 1) | |
b6f06b8e | 898 | new_mflags &= ~MATCHFLG_CLEAR_LIST; |
fdc79501 | 899 | } else if (!len && !(new_mflags & MATCHFLG_CVS_IGNORE)) { |
6dfd07d0 WD |
900 | rprintf(FERROR, "unexpected end of filter rule: %s\n", p); |
901 | exit_cleanup(RERR_SYNTAX); | |
902 | } | |
903 | ||
f1678790 | 904 | /* --delete-excluded turns an un-modified include/exclude into a |
48ecccce WD |
905 | * sender-side rule. We also affect per-dir merge files that take |
906 | * no prefixes as a simple optimization. */ | |
f1678790 WD |
907 | if (delete_excluded |
908 | && !(new_mflags & (MATCHFLG_RECEIVER_SIDE|MATCHFLG_SENDER_SIDE)) | |
48ecccce WD |
909 | && (!(new_mflags & MATCHFLG_PERDIR_MERGE) |
910 | || new_mflags & MATCHFLG_NO_PREFIXES)) | |
f1678790 WD |
911 | new_mflags |= MATCHFLG_SENDER_SIDE; |
912 | ||
96d3590a | 913 | *len_ptr = len; |
b6f06b8e | 914 | *mflags_ptr = new_mflags; |
96d3590a | 915 | return (const char *)s; |
f8f72644 WD |
916 | } |
917 | ||
918 | ||
0f78b815 | 919 | static char default_cvsignore[] = |
46db1850 WD |
920 | /* These default ignored items come from the CVS manual. */ |
921 | "RCS SCCS CVS CVS.adm RCSLOG cvslog.* tags TAGS" | |
922 | " .make.state .nse_depinfo *~ #* .#* ,* _$* *$" | |
923 | " *.old *.bak *.BAK *.orig *.rej .del-*" | |
924 | " *.a *.olb *.o *.obj *.so *.exe" | |
925 | " *.Z *.elc *.ln core" | |
926 | /* The rest we added to suit ourself. */ | |
0485b451 | 927 | " .svn/ .git/ .bzr/"; |
46db1850 WD |
928 | |
929 | static void get_cvs_excludes(uint32 mflags) | |
930 | { | |
46db1850 | 931 | static int initialized = 0; |
c2f0e4d9 | 932 | char *p, fname[MAXPATHLEN]; |
46db1850 WD |
933 | |
934 | if (initialized) | |
935 | return; | |
936 | initialized = 1; | |
937 | ||
c2f0e4d9 WD |
938 | parse_rule(&cvs_filter_list, default_cvsignore, |
939 | mflags | (protocol_version >= 30 ? MATCHFLG_PERISHABLE : 0), | |
940 | 0); | |
46db1850 WD |
941 | |
942 | p = module_id >= 0 && lp_use_chroot(module_id) ? "/" : getenv("HOME"); | |
943 | if (p && pathjoin(fname, MAXPATHLEN, p, ".cvsignore") < MAXPATHLEN) | |
944 | parse_filter_file(&cvs_filter_list, fname, mflags, 0); | |
945 | ||
946 | parse_rule(&cvs_filter_list, getenv("CVSIGNORE"), mflags, 0); | |
947 | } | |
948 | ||
949 | ||
fdc79501 WD |
950 | void parse_rule(struct filter_list_struct *listp, const char *pattern, |
951 | uint32 mflags, int xflags) | |
c627d613 | 952 | { |
fdc79501 WD |
953 | unsigned int pat_len; |
954 | uint32 new_mflags; | |
6dfd07d0 | 955 | const char *cp, *p; |
5be7fa93 | 956 | |
f8f72644 | 957 | if (!pattern) |
5e7dbaca | 958 | return; |
f8f72644 | 959 | |
b2aa573b | 960 | while (1) { |
6dfd07d0 | 961 | /* Remember that the returned string is NOT '\0' terminated! */ |
fdc79501 | 962 | cp = parse_rule_tok(pattern, mflags, xflags, |
b6f06b8e | 963 | &pat_len, &new_mflags); |
6dfd07d0 | 964 | if (!cp) |
b2aa573b | 965 | break; |
969f7ed5 WD |
966 | |
967 | pattern = cp + pat_len; | |
968 | ||
6dfd07d0 | 969 | if (pat_len >= MAXPATHLEN) { |
969f7ed5 | 970 | rprintf(FERROR, "discarding over-long filter: %.*s\n", |
e8b21fe4 | 971 | (int)pat_len, cp); |
6dfd07d0 WD |
972 | continue; |
973 | } | |
5e972dcf | 974 | |
b6f06b8e | 975 | if (new_mflags & MATCHFLG_CLEAR_LIST) { |
de91e757 WD |
976 | if (verbose > 2) { |
977 | rprintf(FINFO, | |
7842418b | 978 | "[%s] clearing filter list%s\n", |
de91e757 WD |
979 | who_am_i(), listp->debug_type); |
980 | } | |
7842418b | 981 | clear_filter_list(listp); |
5e972dcf WD |
982 | continue; |
983 | } | |
b2aa573b | 984 | |
b6f06b8e | 985 | if (new_mflags & MATCHFLG_MERGE_FILE) { |
fdc79501 WD |
986 | unsigned int len; |
987 | if (!pat_len) { | |
988 | cp = ".cvsignore"; | |
989 | pat_len = 10; | |
990 | } | |
991 | len = pat_len; | |
b6f06b8e | 992 | if (new_mflags & MATCHFLG_EXCLUDE_SELF) { |
969f7ed5 WD |
993 | const char *name = cp + len; |
994 | while (name > cp && name[-1] != '/') name--; | |
995 | len -= name - cp; | |
fdc79501 | 996 | add_rule(listp, name, len, 0, 0); |
b6f06b8e | 997 | new_mflags &= ~MATCHFLG_EXCLUDE_SELF; |
6dfd07d0 WD |
998 | len = pat_len; |
999 | } | |
b6f06b8e | 1000 | if (new_mflags & MATCHFLG_PERDIR_MERGE) { |
6dfd07d0 | 1001 | if (parent_dirscan) { |
b6f06b8e WD |
1002 | if (!(p = parse_merge_name(cp, &len, |
1003 | module_dirlen))) | |
6dfd07d0 | 1004 | continue; |
fdc79501 | 1005 | add_rule(listp, p, len, new_mflags, 0); |
6dfd07d0 WD |
1006 | continue; |
1007 | } | |
1008 | } else { | |
6dfd07d0 WD |
1009 | if (!(p = parse_merge_name(cp, &len, 0))) |
1010 | continue; | |
fdc79501 WD |
1011 | parse_filter_file(listp, p, new_mflags, |
1012 | XFLG_FATAL_ERRORS); | |
6dfd07d0 WD |
1013 | continue; |
1014 | } | |
f8f72644 | 1015 | } |
6dfd07d0 | 1016 | |
fdc79501 WD |
1017 | add_rule(listp, cp, pat_len, new_mflags, xflags); |
1018 | ||
1019 | if (new_mflags & MATCHFLG_CVS_IGNORE | |
1020 | && !(new_mflags & MATCHFLG_MERGE_FILE)) | |
46db1850 | 1021 | get_cvs_excludes(new_mflags); |
8c35542d | 1022 | } |
c627d613 AT |
1023 | } |
1024 | ||
c627d613 | 1025 | |
fdc79501 WD |
1026 | void parse_filter_file(struct filter_list_struct *listp, const char *fname, |
1027 | uint32 mflags, int xflags) | |
c627d613 | 1028 | { |
5e7dbaca | 1029 | FILE *fp; |
3fac51e2 | 1030 | char line[BIGPATHBUFLEN]; |
7cd72c79 | 1031 | char *eob = line + sizeof line - 1; |
b6f06b8e | 1032 | int word_split = mflags & MATCHFLG_WORD_SPLIT; |
ccdff3eb | 1033 | |
5be7fa93 WD |
1034 | if (!fname || !*fname) |
1035 | return; | |
1036 | ||
5a016db9 | 1037 | if (*fname != '-' || fname[1] || am_server) { |
819bfe45 | 1038 | if (daemon_filter_list.head) { |
5a016db9 | 1039 | strlcpy(line, fname, sizeof line); |
b58bfb2f | 1040 | clean_fname(line, CFN_COLLAPSE_DOT_DOT_DIRS); |
1df02d13 | 1041 | if (check_filter(&daemon_filter_list, FLOG, line, 0) < 0) |
5a016db9 WD |
1042 | fp = NULL; |
1043 | else | |
1044 | fp = fopen(line, "rb"); | |
1045 | } else | |
1046 | fp = fopen(fname, "rb"); | |
1047 | } else | |
5e7dbaca | 1048 | fp = stdin; |
bf39270e WD |
1049 | |
1050 | if (verbose > 2) { | |
fdc79501 | 1051 | rprintf(FINFO, "[%s] parse_filter_file(%s,%x,%x)%s\n", |
45c49b52 | 1052 | who_am_i(), fname, mflags, xflags, |
bf39270e WD |
1053 | fp ? "" : " [not found]"); |
1054 | } | |
1055 | ||
5e7dbaca | 1056 | if (!fp) { |
f8f72644 | 1057 | if (xflags & XFLG_FATAL_ERRORS) { |
a039749b | 1058 | rsyserr(FERROR, errno, |
6dfd07d0 | 1059 | "failed to open %sclude file %s", |
b6f06b8e | 1060 | mflags & MATCHFLG_INCLUDE ? "in" : "ex", |
45c49b52 | 1061 | fname); |
65417579 | 1062 | exit_cleanup(RERR_FILEIO); |
2b6b4d53 | 1063 | } |
5be7fa93 | 1064 | return; |
2b6b4d53 | 1065 | } |
6dfd07d0 WD |
1066 | dirbuf[dirbuf_len] = '\0'; |
1067 | ||
ccdff3eb | 1068 | while (1) { |
5e7dbaca | 1069 | char *s = line; |
619d21ff | 1070 | int ch, overflow = 0; |
ccdff3eb | 1071 | while (1) { |
5e7dbaca | 1072 | if ((ch = getc(fp)) == EOF) { |
61e16468 WD |
1073 | if (ferror(fp) && errno == EINTR) { |
1074 | clearerr(fp); | |
ccdff3eb | 1075 | continue; |
61e16468 | 1076 | } |
ccdff3eb WD |
1077 | break; |
1078 | } | |
40d38dc0 WD |
1079 | if (word_split && isspace(ch)) |
1080 | break; | |
ccdff3eb WD |
1081 | if (eol_nulls? !ch : (ch == '\n' || ch == '\r')) |
1082 | break; | |
1083 | if (s < eob) | |
1084 | *s++ = ch; | |
619d21ff WD |
1085 | else |
1086 | overflow = 1; | |
1087 | } | |
1088 | if (overflow) { | |
7842418b | 1089 | rprintf(FERROR, "discarding over-long filter: %s...\n", line); |
619d21ff | 1090 | s = line; |
ccdff3eb WD |
1091 | } |
1092 | *s = '\0'; | |
7f0feb4d WD |
1093 | /* Skip an empty token and (when line parsing) comments. */ |
1094 | if (*line && (word_split || (*line != ';' && *line != '#'))) | |
fdc79501 | 1095 | parse_rule(listp, line, mflags, xflags); |
5e7dbaca | 1096 | if (ch == EOF) |
ccdff3eb | 1097 | break; |
2b6b4d53 | 1098 | } |
5e7dbaca | 1099 | fclose(fp); |
c627d613 AT |
1100 | } |
1101 | ||
a261103c | 1102 | /* If the "for_xfer" flag is set, the prefix is made compatible with the |
fdc79501 WD |
1103 | * current protocol_version (if possible) or a NULL is returned (if not |
1104 | * possible). */ | |
a261103c | 1105 | char *get_rule_prefix(int match_flags, const char *pat, int for_xfer, |
fdc79501 | 1106 | unsigned int *plen_ptr) |
417b5999 WD |
1107 | { |
1108 | static char buf[MAX_RULE_PREFIX+1]; | |
1109 | char *op = buf; | |
2217b30a | 1110 | int legal_len = for_xfer && protocol_version < 29 ? 1 : MAX_RULE_PREFIX-1; |
417b5999 WD |
1111 | |
1112 | if (match_flags & MATCHFLG_PERDIR_MERGE) { | |
fdc79501 WD |
1113 | if (legal_len == 1) |
1114 | return NULL; | |
417b5999 | 1115 | *op++ = ':'; |
fdc79501 WD |
1116 | } else if (match_flags & MATCHFLG_INCLUDE) |
1117 | *op++ = '+'; | |
1118 | else if (legal_len != 1 | |
1119 | || ((*pat == '-' || *pat == '+') && pat[1] == ' ')) | |
1120 | *op++ = '-'; | |
1121 | else | |
1122 | legal_len = 0; | |
1123 | ||
2a28dd32 WD |
1124 | if (match_flags & MATCHFLG_NEGATE) |
1125 | *op++ = '!'; | |
fdc79501 WD |
1126 | if (match_flags & MATCHFLG_CVS_IGNORE) |
1127 | *op++ = 'C'; | |
1128 | else { | |
417b5999 WD |
1129 | if (match_flags & MATCHFLG_NO_INHERIT) |
1130 | *op++ = 'n'; | |
d09e800a WD |
1131 | if (match_flags & MATCHFLG_WORD_SPLIT) |
1132 | *op++ = 'w'; | |
417b5999 WD |
1133 | if (match_flags & MATCHFLG_NO_PREFIXES) { |
1134 | if (match_flags & MATCHFLG_INCLUDE) | |
1135 | *op++ = '+'; | |
1136 | else | |
1137 | *op++ = '-'; | |
1138 | } | |
417b5999 | 1139 | } |
46db1850 WD |
1140 | if (match_flags & MATCHFLG_EXCLUDE_SELF) |
1141 | *op++ = 'e'; | |
ed243f8c WD |
1142 | if (match_flags & MATCHFLG_SENDER_SIDE |
1143 | && (!for_xfer || protocol_version >= 29)) | |
1144 | *op++ = 's'; | |
1145 | if (match_flags & MATCHFLG_RECEIVER_SIDE | |
1146 | && (!for_xfer || protocol_version >= 29 | |
1147 | || (delete_excluded && am_sender))) | |
1148 | *op++ = 'r'; | |
ccdb23bb WD |
1149 | if (match_flags & MATCHFLG_PERISHABLE) { |
1150 | if (!for_xfer || protocol_version >= 30) | |
1151 | *op++ = 'p'; | |
1152 | else if (am_sender) | |
1153 | return NULL; | |
1154 | } | |
448797a1 WD |
1155 | if (op - buf > legal_len) |
1156 | return NULL; | |
2217b30a WD |
1157 | if (legal_len) |
1158 | *op++ = ' '; | |
417b5999 WD |
1159 | *op = '\0'; |
1160 | if (plen_ptr) | |
1161 | *plen_ptr = op - buf; | |
417b5999 WD |
1162 | return buf; |
1163 | } | |
c627d613 | 1164 | |
fdc79501 | 1165 | static void send_rules(int f_out, struct filter_list_struct *flp) |
c627d613 | 1166 | { |
ed243f8c | 1167 | struct filter_struct *ent, *prev = NULL; |
25cf8893 | 1168 | |
fdc79501 | 1169 | for (ent = flp->head; ent; ent = ent->next) { |
417b5999 | 1170 | unsigned int len, plen, dlen; |
ed243f8c | 1171 | int elide = 0; |
417b5999 | 1172 | char *p; |
2fb139c1 | 1173 | |
f1678790 WD |
1174 | /* Note we need to check delete_excluded here in addition to |
1175 | * the code in parse_rule_tok() because some rules may have | |
48ecccce WD |
1176 | * been added before we found the --delete-excluded option. |
1177 | * We must also elide any CVS merge-file rules to avoid a | |
1178 | * backward compatibility problem, and we elide any no-prefix | |
1179 | * merge files as an optimization (since they can only have | |
1180 | * include/exclude rules). */ | |
ed243f8c WD |
1181 | if (ent->match_flags & MATCHFLG_SENDER_SIDE) |
1182 | elide = am_sender ? 1 : -1; | |
1183 | if (ent->match_flags & MATCHFLG_RECEIVER_SIDE) | |
1184 | elide = elide ? 0 : am_sender ? -1 : 1; | |
97bf86f8 | 1185 | else if (delete_excluded && !elide |
48ecccce WD |
1186 | && (!(ent->match_flags & MATCHFLG_PERDIR_MERGE) |
1187 | || ent->match_flags & MATCHFLG_NO_PREFIXES)) | |
ed243f8c WD |
1188 | elide = am_sender ? 1 : -1; |
1189 | if (elide < 0) { | |
1190 | if (prev) | |
1191 | prev->next = ent->next; | |
1192 | else | |
1193 | flp->head = ent->next; | |
1194 | } else | |
1195 | prev = ent; | |
1196 | if (elide > 0) | |
1197 | continue; | |
fdc79501 WD |
1198 | if (ent->match_flags & MATCHFLG_CVS_IGNORE |
1199 | && !(ent->match_flags & MATCHFLG_MERGE_FILE)) { | |
98e47414 | 1200 | int f = am_sender || protocol_version < 29 ? f_out : -2; |
ed243f8c | 1201 | send_rules(f, &cvs_filter_list); |
98e47414 | 1202 | if (f == f_out) |
417b5999 | 1203 | continue; |
fdc79501 WD |
1204 | } |
1205 | p = get_rule_prefix(ent->match_flags, ent->pattern, 1, &plen); | |
1206 | if (!p) { | |
417b5999 | 1207 | rprintf(FERROR, |
fdc79501 | 1208 | "filter rules are too modern for remote rsync.\n"); |
caf8299e | 1209 | exit_cleanup(RERR_PROTOCOL); |
5f5be796 | 1210 | } |
ed243f8c WD |
1211 | if (f_out < 0) |
1212 | continue; | |
fdc79501 | 1213 | len = strlen(ent->pattern); |
417b5999 | 1214 | dlen = ent->match_flags & MATCHFLG_DIRECTORY ? 1 : 0; |
fdc79501 WD |
1215 | if (!(plen + len + dlen)) |
1216 | continue; | |
1217 | write_int(f_out, plen + len + dlen); | |
417b5999 | 1218 | if (plen) |
fdc79501 WD |
1219 | write_buf(f_out, p, plen); |
1220 | write_buf(f_out, ent->pattern, len); | |
417b5999 | 1221 | if (dlen) |
fdc79501 | 1222 | write_byte(f_out, '/'); |
0f2ac855 | 1223 | } |
ed243f8c | 1224 | flp->tail = prev; |
c627d613 AT |
1225 | } |
1226 | ||
fdc79501 WD |
1227 | /* This is only called by the client. */ |
1228 | void send_filter_list(int f_out) | |
1229 | { | |
d5782b52 WD |
1230 | int receiver_wants_list = prune_empty_dirs |
1231 | || (delete_mode && (!delete_excluded || protocol_version >= 29)); | |
448797a1 WD |
1232 | |
1233 | if (local_server || (am_sender && !receiver_wants_list)) | |
fdc79501 WD |
1234 | f_out = -1; |
1235 | if (cvs_exclude && am_sender) { | |
1236 | if (protocol_version >= 29) | |
1237 | parse_rule(&filter_list, ":C", 0, 0); | |
1238 | parse_rule(&filter_list, "-C", 0, 0); | |
1239 | } | |
c627d613 | 1240 | |
ed243f8c WD |
1241 | send_rules(f_out, &filter_list); |
1242 | ||
1243 | if (f_out >= 0) | |
fdc79501 | 1244 | write_int(f_out, 0); |
fdc79501 WD |
1245 | |
1246 | if (cvs_exclude) { | |
1247 | if (!am_sender || protocol_version < 29) | |
1248 | parse_rule(&filter_list, ":C", 0, 0); | |
1249 | if (!am_sender) | |
1250 | parse_rule(&filter_list, "-C", 0, 0); | |
1251 | } | |
1252 | } | |
1253 | ||
1254 | /* This is only called by the server. */ | |
1255 | void recv_filter_list(int f_in) | |
c627d613 | 1256 | { |
3fac51e2 | 1257 | char line[BIGPATHBUFLEN]; |
fdc79501 | 1258 | int xflags = protocol_version >= 29 ? 0 : XFLG_OLD_PREFIXES; |
d5782b52 | 1259 | int receiver_wants_list = prune_empty_dirs |
e257c6c2 WD |
1260 | || (delete_mode |
1261 | && (!delete_excluded || protocol_version >= 29)); | |
fdc79501 WD |
1262 | unsigned int len; |
1263 | ||
448797a1 | 1264 | if (!local_server && (am_sender || receiver_wants_list)) { |
fdc79501 WD |
1265 | while ((len = read_int(f_in)) != 0) { |
1266 | if (len >= sizeof line) | |
a1f99493 | 1267 | overflow_exit("recv_rules"); |
fdc79501 WD |
1268 | read_sbuf(f_in, line, len); |
1269 | parse_rule(&filter_list, line, 0, xflags); | |
1270 | } | |
1271 | } | |
9dd891bb | 1272 | |
fdc79501 | 1273 | if (cvs_exclude) { |
1412da7c | 1274 | if (local_server || am_sender || protocol_version < 29) |
fdc79501 | 1275 | parse_rule(&filter_list, ":C", 0, 0); |
1412da7c | 1276 | if (local_server || am_sender) |
fdc79501 | 1277 | parse_rule(&filter_list, "-C", 0, 0); |
651443a7 | 1278 | } |
ed243f8c WD |
1279 | |
1280 | if (local_server) /* filter out any rules that aren't for us. */ | |
1281 | send_rules(-1, &filter_list); | |
651443a7 | 1282 | } |