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f0f5767f | 1 | /* -*- c-file-style: "linux" -*- |
0f2ac855 | 2 | * |
07a874fd MP |
3 | * Copyright (C) 1996-2001 by Andrew Tridgell <tridge@samba.org> |
4 | * Copyright (C) 1996 by Paul Mackerras | |
5 | * Copyright (C) 2002 by Martin Pool | |
0f2ac855 | 6 | * |
07a874fd MP |
7 | * This program is free software; you can redistribute it and/or modify |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
0f2ac855 | 11 | * |
07a874fd MP |
12 | * This program is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
0f2ac855 | 16 | * |
07a874fd MP |
17 | * You should have received a copy of the GNU General Public License |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | */ | |
c627d613 | 21 | |
2b6b4d53 AT |
22 | /* a lot of this stuff was originally derived from GNU tar, although |
23 | it has now changed so much that it is hard to tell :) */ | |
c627d613 | 24 | |
d567322f MP |
25 | /* include/exclude cluestick added by Martin Pool <mbp@samba.org> */ |
26 | ||
c627d613 AT |
27 | #include "rsync.h" |
28 | ||
29 | extern int verbose; | |
40d38dc0 WD |
30 | extern int eol_nulls; |
31 | extern int list_only; | |
32 | extern int recurse; | |
33 | ||
34 | extern char curr_dir[]; | |
c627d613 | 35 | |
67340e95 | 36 | struct exclude_list_struct exclude_list = { 0, 0, "" }; |
82a51ea5 | 37 | struct exclude_list_struct local_exclude_list = { 0, 0, "per-dir .cvsignore " }; |
67340e95 | 38 | struct exclude_list_struct server_exclude_list = { 0, 0, "server " }; |
5be7fa93 | 39 | char *exclude_path_prefix = NULL; |
c627d613 | 40 | |
5e972dcf WD |
41 | /** Build an exclude structure given an exclude pattern. */ |
42 | static void make_exclude(struct exclude_list_struct *listp, const char *pat, | |
43 | unsigned int pat_len, unsigned int mflags) | |
c627d613 | 44 | { |
2b6b4d53 | 45 | struct exclude_struct *ret; |
f8f72644 | 46 | const char *cp; |
5e972dcf | 47 | unsigned int ex_len; |
c627d613 | 48 | |
58cadc86 | 49 | ret = new(struct exclude_struct); |
f8f72644 WD |
50 | if (!ret) |
51 | out_of_memory("make_exclude"); | |
c627d613 | 52 | |
5f5be796 | 53 | memset(ret, 0, sizeof ret[0]); |
2b6b4d53 | 54 | |
5be7fa93 | 55 | if (exclude_path_prefix) |
5e972dcf WD |
56 | mflags |= MATCHFLG_ABS_PATH; |
57 | if (exclude_path_prefix && *pat == '/') | |
f8f72644 WD |
58 | ex_len = strlen(exclude_path_prefix); |
59 | else | |
60 | ex_len = 0; | |
61 | ret->pattern = new_array(char, ex_len + pat_len + 1); | |
62 | if (!ret->pattern) | |
63 | out_of_memory("make_exclude"); | |
64 | if (ex_len) | |
65 | memcpy(ret->pattern, exclude_path_prefix, ex_len); | |
5e972dcf | 66 | strlcpy(ret->pattern + ex_len, pat, pat_len + 1); |
f8f72644 WD |
67 | pat_len += ex_len; |
68 | ||
69 | if (strpbrk(ret->pattern, "*[?")) { | |
5e972dcf | 70 | mflags |= MATCHFLG_WILD; |
96d3590a | 71 | if ((cp = strstr(ret->pattern, "**")) != NULL) { |
5e972dcf | 72 | mflags |= MATCHFLG_WILD2; |
170381c0 | 73 | /* If the pattern starts with **, note that. */ |
96d3590a | 74 | if (cp == ret->pattern) |
5e972dcf | 75 | mflags |= MATCHFLG_WILD2_PREFIX; |
0f2ac855 | 76 | } |
2bca43f6 | 77 | } |
c627d613 | 78 | |
5be7fa93 WD |
79 | if (pat_len > 1 && ret->pattern[pat_len-1] == '/') { |
80 | ret->pattern[pat_len-1] = 0; | |
5e972dcf | 81 | mflags |= MATCHFLG_DIRECTORY; |
2b6b4d53 | 82 | } |
c627d613 | 83 | |
170381c0 WD |
84 | for (cp = ret->pattern; (cp = strchr(cp, '/')) != NULL; cp++) |
85 | ret->slash_cnt++; | |
0944563e | 86 | |
c1b29492 WD |
87 | ret->match_flags = mflags; |
88 | ||
b2aa573b WD |
89 | if (!listp->tail) |
90 | listp->head = listp->tail = ret; | |
91 | else { | |
92 | listp->tail->next = ret; | |
93 | listp->tail = ret; | |
94 | } | |
2b6b4d53 AT |
95 | } |
96 | ||
97 | static void free_exclude(struct exclude_struct *ex) | |
98 | { | |
2b6b4d53 | 99 | free(ex->pattern); |
2b6b4d53 AT |
100 | free(ex); |
101 | } | |
c627d613 | 102 | |
8cbf495a | 103 | void clear_exclude_list(struct exclude_list_struct *listp) |
5be7fa93 | 104 | { |
b2aa573b | 105 | struct exclude_struct *ent, *next; |
5be7fa93 | 106 | |
b2aa573b WD |
107 | for (ent = listp->head; ent; ent = next) { |
108 | next = ent->next; | |
109 | free_exclude(ent); | |
110 | } | |
5be7fa93 | 111 | |
67340e95 | 112 | listp->head = listp->tail = NULL; |
5be7fa93 WD |
113 | } |
114 | ||
d567322f | 115 | static int check_one_exclude(char *name, struct exclude_struct *ex, |
5be7fa93 | 116 | int name_is_dir) |
2b6b4d53 | 117 | { |
9f186578 | 118 | char *p, full_name[MAXPATHLEN]; |
0f2ac855 | 119 | int match_start = 0; |
2b6b4d53 AT |
120 | char *pattern = ex->pattern; |
121 | ||
9f186578 WD |
122 | if (!*name) |
123 | return 0; | |
124 | ||
170381c0 WD |
125 | /* If the pattern does not have any slashes AND it does not have |
126 | * a "**" (which could match a slash), then we just match the | |
127 | * name portion of the path. */ | |
5be7fa93 WD |
128 | if (!ex->slash_cnt && !(ex->match_flags & MATCHFLG_WILD2)) { |
129 | if ((p = strrchr(name,'/')) != NULL) | |
130 | name = p+1; | |
131 | } | |
9f186578 WD |
132 | else if (ex->match_flags & MATCHFLG_ABS_PATH && *name != '/' |
133 | && curr_dir[1]) { | |
134 | pathjoin(full_name, sizeof full_name, curr_dir + 1, name); | |
5be7fa93 WD |
135 | name = full_name; |
136 | } | |
2b6b4d53 | 137 | |
5e972dcf WD |
138 | if (ex->match_flags & MATCHFLG_DIRECTORY && !name_is_dir) |
139 | return 0; | |
2b6b4d53 | 140 | |
170381c0 | 141 | if (*pattern == '/') { |
2b6b4d53 AT |
142 | match_start = 1; |
143 | pattern++; | |
170381c0 WD |
144 | if (*name == '/') |
145 | name++; | |
2b6b4d53 AT |
146 | } |
147 | ||
170381c0 | 148 | if (ex->match_flags & MATCHFLG_WILD) { |
170381c0 WD |
149 | /* A non-anchored match with an infix slash and no "**" |
150 | * needs to match the last slash_cnt+1 name elements. */ | |
5e972dcf WD |
151 | if (!match_start && ex->slash_cnt |
152 | && !(ex->match_flags & MATCHFLG_WILD2)) { | |
170381c0 WD |
153 | int cnt = ex->slash_cnt + 1; |
154 | for (p = name + strlen(name) - 1; p >= name; p--) { | |
155 | if (*p == '/' && !--cnt) | |
156 | break; | |
157 | } | |
158 | name = p+1; | |
159 | } | |
fe332038 | 160 | if (wildmatch(pattern, name)) |
2b6b4d53 | 161 | return 1; |
170381c0 WD |
162 | if (ex->match_flags & MATCHFLG_WILD2_PREFIX) { |
163 | /* If the **-prefixed pattern has a '/' as the next | |
164 | * character, then try to match the rest of the | |
165 | * pattern at the root. */ | |
fe332038 | 166 | if (pattern[2] == '/' && wildmatch(pattern+3, name)) |
170381c0 | 167 | return 1; |
c36cd317 | 168 | } |
170381c0 WD |
169 | else if (!match_start && ex->match_flags & MATCHFLG_WILD2) { |
170 | /* A non-anchored match with an infix or trailing "**" | |
171 | * (but not a prefixed "**") needs to try matching | |
172 | * after every slash. */ | |
173 | while ((name = strchr(name, '/')) != NULL) { | |
174 | name++; | |
fe332038 | 175 | if (wildmatch(pattern, name)) |
170381c0 WD |
176 | return 1; |
177 | } | |
178 | } | |
179 | } else if (match_start) { | |
180 | if (strcmp(name,pattern) == 0) | |
181 | return 1; | |
2b6b4d53 AT |
182 | } else { |
183 | int l1 = strlen(name); | |
ea2111d1 | 184 | int l2 = strlen(pattern); |
0f2ac855 | 185 | if (l2 <= l1 && |
ea2111d1 | 186 | strcmp(name+(l1-l2),pattern) == 0 && |
170381c0 | 187 | (l1==l2 || name[l1-(l2+1)] == '/')) { |
2b6b4d53 | 188 | return 1; |
c36cd317 | 189 | } |
2b6b4d53 AT |
190 | } |
191 | ||
192 | return 0; | |
c627d613 AT |
193 | } |
194 | ||
195 | ||
d567322f MP |
196 | static void report_exclude_result(char const *name, |
197 | struct exclude_struct const *ent, | |
61414c83 | 198 | int name_is_dir, const char *type) |
d567322f | 199 | { |
0f2ac855 WD |
200 | /* If a trailing slash is present to match only directories, |
201 | * then it is stripped out by make_exclude. So as a special | |
202 | * case we add it back in here. */ | |
203 | ||
ea847c62 | 204 | if (verbose >= 2) { |
67340e95 | 205 | rprintf(FINFO, "[%s] %scluding %s %s because of %spattern %s%s\n", |
5e972dcf WD |
206 | who_am_i(), |
207 | ent->match_flags & MATCHFLG_INCLUDE ? "in" : "ex", | |
61414c83 | 208 | name_is_dir ? "directory" : "file", name, type, |
5e972dcf WD |
209 | ent->pattern, |
210 | ent->match_flags & MATCHFLG_DIRECTORY ? "/" : ""); | |
ea847c62 | 211 | } |
d567322f MP |
212 | } |
213 | ||
214 | ||
215 | /* | |
a6536635 WD |
216 | * Return -1 if file "name" is defined to be excluded by the specified |
217 | * exclude list, 1 if it is included, and 0 if it was not matched. | |
d567322f | 218 | */ |
67340e95 | 219 | int check_exclude(struct exclude_list_struct *listp, char *name, int name_is_dir) |
c627d613 | 220 | { |
0f2ac855 | 221 | struct exclude_struct *ent; |
c627d613 | 222 | |
b2aa573b | 223 | for (ent = listp->head; ent; ent = ent->next) { |
5be7fa93 | 224 | if (check_one_exclude(name, ent, name_is_dir)) { |
67340e95 WD |
225 | report_exclude_result(name, ent, name_is_dir, |
226 | listp->debug_type); | |
5e972dcf | 227 | return ent->match_flags & MATCHFLG_INCLUDE ? 1 : -1; |
0f2ac855 | 228 | } |
2b6b4d53 | 229 | } |
c627d613 | 230 | |
2b6b4d53 | 231 | return 0; |
c627d613 AT |
232 | } |
233 | ||
234 | ||
f8f72644 WD |
235 | /* Get the next include/exclude arg from the string. The token will not |
236 | * be '\0' terminated, so use the returned length to limit the string. | |
237 | * Also, be sure to add this length to the returned pointer before passing | |
65e24870 WD |
238 | * it back to ask for the next token. This routine parses the +/- prefixes |
239 | * and the "!" token unless xflags contains XFLG_WORDS_ONLY. The *flag_ptr | |
240 | * value will also be set to the MATCHFLG_* bits for the current token. | |
f8f72644 | 241 | */ |
5e972dcf WD |
242 | static const char *get_exclude_tok(const char *p, unsigned int *len_ptr, |
243 | unsigned int *flag_ptr, int xflags) | |
f8f72644 | 244 | { |
abca4eba | 245 | const unsigned char *s = (const unsigned char *)p; |
5e972dcf | 246 | unsigned int len, mflags = 0; |
f8f72644 | 247 | |
96d3590a WD |
248 | if (xflags & XFLG_WORD_SPLIT) { |
249 | /* Skip over any initial whitespace. */ | |
250 | while (isspace(*s)) | |
f8f72644 | 251 | s++; |
abca4eba WD |
252 | /* Update for "!" check. */ |
253 | p = (const char *)s; | |
f8f72644 WD |
254 | } |
255 | ||
96d3590a | 256 | /* Is this a '+' or '-' followed by a space (not whitespace)? */ |
7f0feb4d | 257 | if (!(xflags & XFLG_WORDS_ONLY) |
96d3590a | 258 | && (*s == '-' || *s == '+') && s[1] == ' ') { |
5e972dcf WD |
259 | if (*s == '+') |
260 | mflags |= MATCHFLG_INCLUDE; | |
96d3590a | 261 | s += 2; |
5e972dcf WD |
262 | } else if (xflags & XFLG_DEF_INCLUDE) |
263 | mflags |= MATCHFLG_INCLUDE; | |
96d3590a WD |
264 | |
265 | if (xflags & XFLG_WORD_SPLIT) { | |
266 | const unsigned char *cp = s; | |
267 | /* Token ends at whitespace or the end of the string. */ | |
268 | while (!isspace(*cp) && *cp != '\0') | |
269 | cp++; | |
270 | len = cp - s; | |
271 | } else | |
272 | len = strlen(s); | |
273 | ||
7f0feb4d | 274 | if (*p == '!' && len == 1 && !(xflags & XFLG_WORDS_ONLY)) |
5e972dcf | 275 | mflags |= MATCHFLG_CLEAR_LIST; |
96d3590a WD |
276 | |
277 | *len_ptr = len; | |
5e972dcf | 278 | *flag_ptr = mflags; |
96d3590a | 279 | return (const char *)s; |
f8f72644 WD |
280 | } |
281 | ||
282 | ||
b2aa573b WD |
283 | void add_exclude(struct exclude_list_struct *listp, const char *pattern, |
284 | int xflags) | |
c627d613 | 285 | { |
5e972dcf | 286 | unsigned int pat_len, mflags; |
f8f72644 | 287 | const char *cp; |
5be7fa93 | 288 | |
f8f72644 | 289 | if (!pattern) |
5e7dbaca | 290 | return; |
f8f72644 | 291 | |
b2aa573b WD |
292 | cp = pattern; |
293 | pat_len = 0; | |
294 | while (1) { | |
5e972dcf | 295 | cp = get_exclude_tok(cp + pat_len, &pat_len, &mflags, xflags); |
96d3590a | 296 | if (!pat_len) |
b2aa573b | 297 | break; |
5e972dcf WD |
298 | |
299 | if (mflags & MATCHFLG_CLEAR_LIST) { | |
de91e757 WD |
300 | if (verbose > 2) { |
301 | rprintf(FINFO, | |
302 | "[%s] clearing %sexclude list\n", | |
303 | who_am_i(), listp->debug_type); | |
304 | } | |
8cbf495a | 305 | clear_exclude_list(listp); |
5e972dcf WD |
306 | continue; |
307 | } | |
b2aa573b | 308 | |
5e972dcf WD |
309 | make_exclude(listp, cp, pat_len, mflags); |
310 | ||
311 | if (verbose > 2) { | |
312 | rprintf(FINFO, "[%s] add_exclude(%.*s, %s%sclude)\n", | |
cb213f1c | 313 | who_am_i(), (int)pat_len, cp, listp->debug_type, |
5e972dcf | 314 | mflags & MATCHFLG_INCLUDE ? "in" : "ex"); |
f8f72644 | 315 | } |
8c35542d | 316 | } |
c627d613 AT |
317 | } |
318 | ||
c627d613 | 319 | |
b2aa573b | 320 | void add_exclude_file(struct exclude_list_struct *listp, const char *fname, |
f8f72644 | 321 | int xflags) |
c627d613 | 322 | { |
5e7dbaca | 323 | FILE *fp; |
619d21ff | 324 | char line[MAXPATHLEN+3]; /* Room for "x " prefix and trailing slash. */ |
7cd72c79 | 325 | char *eob = line + sizeof line - 1; |
40d38dc0 | 326 | int word_split = xflags & XFLG_WORD_SPLIT; |
ccdff3eb | 327 | |
5be7fa93 WD |
328 | if (!fname || !*fname) |
329 | return; | |
330 | ||
331 | if (*fname != '-' || fname[1]) | |
5e7dbaca | 332 | fp = fopen(fname, "rb"); |
ccdff3eb | 333 | else |
5e7dbaca WD |
334 | fp = stdin; |
335 | if (!fp) { | |
f8f72644 | 336 | if (xflags & XFLG_FATAL_ERRORS) { |
a039749b | 337 | rsyserr(FERROR, errno, |
0f2ac855 | 338 | "failed to open %s file %s", |
f8f72644 | 339 | xflags & XFLG_DEF_INCLUDE ? "include" : "exclude", |
0f2ac855 | 340 | fname); |
65417579 | 341 | exit_cleanup(RERR_FILEIO); |
2b6b4d53 | 342 | } |
5be7fa93 | 343 | return; |
2b6b4d53 AT |
344 | } |
345 | ||
ccdff3eb | 346 | while (1) { |
5e7dbaca | 347 | char *s = line; |
619d21ff | 348 | int ch, overflow = 0; |
ccdff3eb | 349 | while (1) { |
5e7dbaca WD |
350 | if ((ch = getc(fp)) == EOF) { |
351 | if (ferror(fp) && errno == EINTR) | |
ccdff3eb WD |
352 | continue; |
353 | break; | |
354 | } | |
40d38dc0 WD |
355 | if (word_split && isspace(ch)) |
356 | break; | |
ccdff3eb WD |
357 | if (eol_nulls? !ch : (ch == '\n' || ch == '\r')) |
358 | break; | |
359 | if (s < eob) | |
360 | *s++ = ch; | |
619d21ff WD |
361 | else |
362 | overflow = 1; | |
363 | } | |
364 | if (overflow) { | |
365 | rprintf(FERROR, "discarding over-long exclude: %s...\n", line); | |
366 | s = line; | |
ccdff3eb WD |
367 | } |
368 | *s = '\0'; | |
7f0feb4d WD |
369 | /* Skip an empty token and (when line parsing) comments. */ |
370 | if (*line && (word_split || (*line != ';' && *line != '#'))) | |
f8f72644 | 371 | add_exclude(listp, line, xflags); |
5e7dbaca | 372 | if (ch == EOF) |
ccdff3eb | 373 | break; |
2b6b4d53 | 374 | } |
5e7dbaca | 375 | fclose(fp); |
c627d613 AT |
376 | } |
377 | ||
378 | ||
379 | void send_exclude_list(int f) | |
380 | { | |
b2aa573b | 381 | struct exclude_struct *ent; |
25cf8893 | 382 | |
bb7c4fa3 MP |
383 | /* This is a complete hack - blame Rusty. |
384 | * | |
385 | * FIXME: This pattern shows up in the output of | |
386 | * report_exclude_result(), which is not ideal. */ | |
5be7fa93 | 387 | if (list_only && !recurse) |
f8f72644 | 388 | add_exclude(&exclude_list, "/*/*", 0); |
2b6b4d53 | 389 | |
b2aa573b | 390 | for (ent = exclude_list.head; ent; ent = ent->next) { |
5f5be796 | 391 | unsigned int l; |
a3dbb20a | 392 | char p[MAXPATHLEN+1]; |
2fb139c1 | 393 | |
b2aa573b | 394 | l = strlcpy(p, ent->pattern, sizeof p); |
5f5be796 WD |
395 | if (l == 0 || l >= MAXPATHLEN) |
396 | continue; | |
5e972dcf | 397 | if (ent->match_flags & MATCHFLG_DIRECTORY) { |
a3dbb20a WD |
398 | p[l++] = '/'; |
399 | p[l] = '\0'; | |
5f5be796 | 400 | } |
2b6b4d53 | 401 | |
5e972dcf | 402 | if (ent->match_flags & MATCHFLG_INCLUDE) { |
a3dbb20a WD |
403 | write_int(f, l + 2); |
404 | write_buf(f, "+ ", 2); | |
405 | } else if ((*p == '-' || *p == '+') && p[1] == ' ') { | |
406 | write_int(f, l + 2); | |
407 | write_buf(f, "- ", 2); | |
408 | } else | |
409 | write_int(f, l); | |
410 | write_buf(f, p, l); | |
0f2ac855 | 411 | } |
2b6b4d53 | 412 | |
a3dbb20a | 413 | write_int(f, 0); |
c627d613 AT |
414 | } |
415 | ||
416 | ||
417 | void recv_exclude_list(int f) | |
418 | { | |
619d21ff | 419 | char line[MAXPATHLEN+3]; /* Room for "x " prefix and trailing slash. */ |
9dd891bb MP |
420 | unsigned int l; |
421 | ||
5f5be796 WD |
422 | while ((l = read_int(f)) != 0) { |
423 | if (l >= sizeof line) | |
424 | overflow("recv_exclude_list"); | |
425 | read_sbuf(f, line, l); | |
f8f72644 | 426 | add_exclude(&exclude_list, line, 0); |
651443a7 | 427 | } |
651443a7 DD |
428 | } |
429 | ||
0f2ac855 | 430 | |
f8f72644 WD |
431 | static char default_cvsignore[] = |
432 | /* These default ignored items come from the CVS manual. */ | |
433 | "RCS SCCS CVS CVS.adm RCSLOG cvslog.* tags TAGS" | |
434 | " .make.state .nse_depinfo *~ #* .#* ,* _$* *$" | |
435 | " *.old *.bak *.BAK *.orig *.rej .del-*" | |
436 | " *.a *.olb *.o *.obj *.so *.exe" | |
437 | " *.Z *.elc *.ln core" | |
438 | /* The rest we added to suit ourself. */ | |
439 | " .svn/"; | |
c627d613 AT |
440 | |
441 | void add_cvs_excludes(void) | |
442 | { | |
2b6b4d53 AT |
443 | char fname[MAXPATHLEN]; |
444 | char *p; | |
0f2ac855 | 445 | |
f8f72644 | 446 | add_exclude(&exclude_list, default_cvsignore, |
7f0feb4d | 447 | XFLG_WORD_SPLIT | XFLG_WORDS_ONLY); |
c627d613 | 448 | |
a7725e6d | 449 | if ((p = getenv("HOME")) |
f8f72644 WD |
450 | && pathjoin(fname, sizeof fname, p, ".cvsignore") < sizeof fname) { |
451 | add_exclude_file(&exclude_list, fname, | |
7f0feb4d | 452 | XFLG_WORD_SPLIT | XFLG_WORDS_ONLY); |
f8f72644 | 453 | } |
c627d613 | 454 | |
f8f72644 | 455 | add_exclude(&exclude_list, getenv("CVSIGNORE"), |
7f0feb4d | 456 | XFLG_WORD_SPLIT | XFLG_WORDS_ONLY); |
c627d613 | 457 | } |