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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
29extern int verbose;
30
5be7fa93
WD
31struct exclude_struct **exclude_list;
32struct exclude_struct **local_exclude_list;
33struct exclude_struct **server_exclude_list;
34char *exclude_path_prefix = NULL;
c627d613 35
07a874fd 36/** Build an exclude structure given a exclude pattern */
f0f5767f 37static struct exclude_struct *make_exclude(const char *pattern, int include)
c627d613 38{
2b6b4d53 39 struct exclude_struct *ret;
170381c0 40 char *cp;
5be7fa93 41 int pat_len;
c627d613 42
58cadc86 43 ret = new(struct exclude_struct);
2b6b4d53 44 if (!ret) out_of_memory("make_exclude");
c627d613 45
5f5be796 46 memset(ret, 0, sizeof ret[0]);
2b6b4d53 47
2b6b4d53
AT
48 if (strncmp(pattern,"- ",2) == 0) {
49 pattern += 2;
50 } else if (strncmp(pattern,"+ ",2) == 0) {
51 ret->include = 1;
52 pattern += 2;
53 } else {
54 ret->include = include;
55 }
56
5be7fa93
WD
57 if (exclude_path_prefix)
58 ret->match_flags |= MATCHFLG_ABS_PATH;
59 if (exclude_path_prefix && *pattern == '/') {
58cadc86
WD
60 ret->pattern = new_array(char,
61 strlen(exclude_path_prefix) + strlen(pattern) + 1);
5be7fa93
WD
62 if (!ret->pattern) out_of_memory("make_exclude");
63 sprintf(ret->pattern, "%s%s", exclude_path_prefix, pattern);
64 }
65 else {
66 ret->pattern = strdup(pattern);
67 if (!ret->pattern) out_of_memory("make_exclude");
68 }
c627d613 69
2bca43f6 70 if (strpbrk(pattern, "*[?")) {
170381c0 71 ret->match_flags |= MATCHFLG_WILD;
0f2ac855 72 if (strstr(pattern, "**")) {
170381c0
WD
73 ret->match_flags |= MATCHFLG_WILD2;
74 /* If the pattern starts with **, note that. */
75 if (*pattern == '*' && pattern[1] == '*')
76 ret->match_flags |= MATCHFLG_WILD2_PREFIX;
0f2ac855 77 }
2bca43f6 78 }
c627d613 79
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WD
80 pat_len = strlen(ret->pattern);
81 if (pat_len > 1 && ret->pattern[pat_len-1] == '/') {
82 ret->pattern[pat_len-1] = 0;
2b6b4d53
AT
83 ret->directory = 1;
84 }
c627d613 85
170381c0
WD
86 for (cp = ret->pattern; (cp = strchr(cp, '/')) != NULL; cp++)
87 ret->slash_cnt++;
0944563e 88
2b6b4d53
AT
89 return ret;
90}
91
92static void free_exclude(struct exclude_struct *ex)
93{
2b6b4d53 94 free(ex->pattern);
5f5be796 95 memset(ex, 0, sizeof ex[0]);
2b6b4d53
AT
96 free(ex);
97}
c627d613 98
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WD
99
100void free_exclude_list(struct exclude_struct ***listp)
101{
102 struct exclude_struct **list = *listp;
103
104 if (verbose > 2)
ea847c62 105 rprintf(FINFO, "[%s] clearing exclude list\n", who_am_i());
5be7fa93
WD
106
107 if (!list)
108 return;
109
110 while (*list)
111 free_exclude(*list++);
112
113 free(*listp);
114 *listp = NULL;
115}
116
d567322f 117static int check_one_exclude(char *name, struct exclude_struct *ex,
5be7fa93 118 int name_is_dir)
2b6b4d53
AT
119{
120 char *p;
0f2ac855 121 int match_start = 0;
2b6b4d53
AT
122 char *pattern = ex->pattern;
123
170381c0
WD
124 /* If the pattern does not have any slashes AND it does not have
125 * a "**" (which could match a slash), then we just match the
126 * name portion of the path. */
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WD
127 if (!ex->slash_cnt && !(ex->match_flags & MATCHFLG_WILD2)) {
128 if ((p = strrchr(name,'/')) != NULL)
129 name = p+1;
130 }
131 else if ((ex->match_flags & MATCHFLG_ABS_PATH) && *name != '/') {
132 static char full_name[MAXPATHLEN];
133 extern char curr_dir[];
134 int plus = curr_dir[1] == '\0'? 1 : 0;
a7725e6d 135 pathjoin(full_name, sizeof full_name, curr_dir+plus, name);
5be7fa93
WD
136 name = full_name;
137 }
2b6b4d53
AT
138
139 if (!name[0]) return 0;
140
5be7fa93 141 if (ex->directory && !name_is_dir) return 0;
2b6b4d53 142
170381c0 143 if (*pattern == '/') {
2b6b4d53
AT
144 match_start = 1;
145 pattern++;
170381c0
WD
146 if (*name == '/')
147 name++;
2b6b4d53
AT
148 }
149
170381c0 150 if (ex->match_flags & MATCHFLG_WILD) {
170381c0
WD
151 /* A non-anchored match with an infix slash and no "**"
152 * needs to match the last slash_cnt+1 name elements. */
153 if (!match_start && ex->slash_cnt &&
154 !(ex->match_flags & MATCHFLG_WILD2)) {
155 int cnt = ex->slash_cnt + 1;
156 for (p = name + strlen(name) - 1; p >= name; p--) {
157 if (*p == '/' && !--cnt)
158 break;
159 }
160 name = p+1;
161 }
fe332038 162 if (wildmatch(pattern, name))
2b6b4d53 163 return 1;
170381c0
WD
164 if (ex->match_flags & MATCHFLG_WILD2_PREFIX) {
165 /* If the **-prefixed pattern has a '/' as the next
166 * character, then try to match the rest of the
167 * pattern at the root. */
fe332038 168 if (pattern[2] == '/' && wildmatch(pattern+3, name))
170381c0 169 return 1;
c36cd317 170 }
170381c0
WD
171 else if (!match_start && ex->match_flags & MATCHFLG_WILD2) {
172 /* A non-anchored match with an infix or trailing "**"
173 * (but not a prefixed "**") needs to try matching
174 * after every slash. */
175 while ((name = strchr(name, '/')) != NULL) {
176 name++;
fe332038 177 if (wildmatch(pattern, name))
170381c0
WD
178 return 1;
179 }
180 }
181 } else if (match_start) {
182 if (strcmp(name,pattern) == 0)
183 return 1;
2b6b4d53
AT
184 } else {
185 int l1 = strlen(name);
ea2111d1 186 int l2 = strlen(pattern);
0f2ac855 187 if (l2 <= l1 &&
ea2111d1 188 strcmp(name+(l1-l2),pattern) == 0 &&
170381c0 189 (l1==l2 || name[l1-(l2+1)] == '/')) {
2b6b4d53 190 return 1;
c36cd317 191 }
2b6b4d53
AT
192 }
193
194 return 0;
c627d613
AT
195}
196
197
d567322f
MP
198static void report_exclude_result(char const *name,
199 struct exclude_struct const *ent,
5be7fa93 200 int name_is_dir)
d567322f 201{
0f2ac855
WD
202 /* If a trailing slash is present to match only directories,
203 * then it is stripped out by make_exclude. So as a special
204 * case we add it back in here. */
205
ea847c62
WD
206 if (verbose >= 2) {
207 rprintf(FINFO, "[%s] %s %s %s because of pattern %s%s\n",
208 who_am_i(),
0f2ac855 209 ent->include ? "including" : "excluding",
5be7fa93 210 name_is_dir ? "directory" : "file",
0f2ac855
WD
211 name, ent->pattern,
212 ent->directory ? "/" : "");
ea847c62 213 }
d567322f
MP
214}
215
216
217/*
218 * Return true if file NAME is defined to be excluded by either
219 * LOCAL_EXCLUDE_LIST or the globals EXCLUDE_LIST.
220 */
5be7fa93 221int check_exclude(struct exclude_struct **list, char *name, int name_is_dir)
c627d613 222{
0f2ac855 223 struct exclude_struct *ent;
c627d613 224
5be7fa93
WD
225 while ((ent = *list++) != NULL) {
226 if (check_one_exclude(name, ent, name_is_dir)) {
227 report_exclude_result(name, ent, name_is_dir);
228 return !ent->include;
0f2ac855 229 }
2b6b4d53 230 }
c627d613 231
2b6b4d53 232 return 0;
c627d613
AT
233}
234
235
5be7fa93 236void add_exclude(struct exclude_struct ***listp, const char *pattern, int include)
c627d613 237{
5be7fa93
WD
238 struct exclude_struct **list = *listp;
239 int len = 0;
240
241 if (*pattern == '!' && !pattern[1]) {
5e7dbaca
WD
242 free_exclude_list(listp);
243 return;
2b6b4d53
AT
244 }
245
5be7fa93
WD
246 if (list)
247 for (; list[len]; len++) {}
0f2ac855 248
a8edfd53 249 list = *listp = realloc_array(list, struct exclude_struct *, len+2);
5be7fa93
WD
250
251 if (!list || !(list[len] = make_exclude(pattern, include)))
2b6b4d53 252 out_of_memory("add_exclude");
0f2ac855 253
8c35542d 254 if (verbose > 2) {
ea847c62
WD
255 rprintf(FINFO, "[%s] add_exclude(%s,%s)\n",
256 who_am_i(), pattern,
0f2ac855 257 include ? "include" : "exclude");
8c35542d
MP
258 }
259
5be7fa93 260 list[len+1] = NULL;
c627d613
AT
261}
262
c627d613 263
5be7fa93
WD
264void add_exclude_file(struct exclude_struct ***listp, const char *fname,
265 int fatal, int include)
c627d613 266{
5e7dbaca 267 FILE *fp;
2b6b4d53 268 char line[MAXPATHLEN];
ccdff3eb
WD
269 char *eob = line + MAXPATHLEN - 1;
270 extern int eol_nulls;
271
5be7fa93
WD
272 if (!fname || !*fname)
273 return;
274
275 if (*fname != '-' || fname[1])
5e7dbaca 276 fp = fopen(fname, "rb");
ccdff3eb 277 else
5e7dbaca
WD
278 fp = stdin;
279 if (!fp) {
2b6b4d53 280 if (fatal) {
a039749b 281 rsyserr(FERROR, errno,
0f2ac855
WD
282 "failed to open %s file %s",
283 include ? "include" : "exclude",
284 fname);
65417579 285 exit_cleanup(RERR_FILEIO);
2b6b4d53 286 }
5be7fa93 287 return;
2b6b4d53
AT
288 }
289
ccdff3eb 290 while (1) {
5e7dbaca
WD
291 char *s = line;
292 int ch;
ccdff3eb 293 while (1) {
5e7dbaca
WD
294 if ((ch = getc(fp)) == EOF) {
295 if (ferror(fp) && errno == EINTR)
ccdff3eb
WD
296 continue;
297 break;
298 }
299 if (eol_nulls? !ch : (ch == '\n' || ch == '\r'))
300 break;
301 if (s < eob)
302 *s++ = ch;
303 }
304 *s = '\0';
305 if (*line && *line != ';' && *line != '#') {
122f19a6 306 /* Skip lines starting with semicolon or pound.
ccdff3eb
WD
307 * It probably wouldn't cause any harm to not skip
308 * them but there's no need to save them. */
5be7fa93 309 add_exclude(listp, line, include);
122f19a6 310 }
5e7dbaca 311 if (ch == EOF)
ccdff3eb 312 break;
2b6b4d53 313 }
5e7dbaca 314 fclose(fp);
c627d613
AT
315}
316
317
318void send_exclude_list(int f)
319{
2b6b4d53 320 int i;
25cf8893
AT
321 extern int list_only, recurse;
322
bb7c4fa3
MP
323 /* This is a complete hack - blame Rusty.
324 *
325 * FIXME: This pattern shows up in the output of
326 * report_exclude_result(), which is not ideal. */
5be7fa93
WD
327 if (list_only && !recurse)
328 add_exclude(&exclude_list, "/*/*", ADD_EXCLUDE);
2b6b4d53
AT
329
330 if (!exclude_list) {
331 write_int(f,0);
332 return;
333 }
334
5f5be796
WD
335 for (i = 0; exclude_list[i]; i++) {
336 unsigned int l;
337 char pattern[MAXPATHLEN+1];
2fb139c1 338
5f5be796
WD
339 l = strlcpy(pattern, exclude_list[i]->pattern, sizeof pattern);
340 if (l == 0 || l >= MAXPATHLEN)
341 continue;
342 if (exclude_list[i]->directory) {
343 pattern[l++] = '/';
344 pattern[l] = '\0';
345 }
2b6b4d53 346
587cb08d 347 if (exclude_list[i]->include) {
587cb08d
DD
348 write_int(f,l+2);
349 write_buf(f,"+ ",2);
350 } else {
351 write_int(f,l);
2b6b4d53 352 }
2b6b4d53 353 write_buf(f,pattern,l);
0f2ac855 354 }
2b6b4d53
AT
355
356 write_int(f,0);
c627d613
AT
357}
358
359
360void recv_exclude_list(int f)
361{
5f5be796 362 char line[MAXPATHLEN+1]; /* Allows a trailing slash on a max-len dir */
9dd891bb
MP
363 unsigned int l;
364
5f5be796
WD
365 while ((l = read_int(f)) != 0) {
366 if (l >= sizeof line)
367 overflow("recv_exclude_list");
368 read_sbuf(f, line, l);
5be7fa93 369 add_exclude(&exclude_list, line, ADD_EXCLUDE);
2b6b4d53 370 }
c627d613
AT
371}
372
651443a7
DD
373/* Get the next include/exclude arg from the string. It works in a similar way
374** to strtok - initially an arg is sent over, from then on NULL. This
375** routine takes into account any +/- in the strings and does not
376** consider the space following it as a delimeter.
377*/
378char *get_exclude_tok(char *p)
379{
380 static char *s;
381 static int more;
382 char *t;
383
384 if (p) {
385 s=p;
386 if (*p)
387 more=1;
388 }
389
390 if (!more)
391 return(NULL);
c627d613 392
651443a7 393 /* Skip over any initial spaces */
32f76175 394 while (isspace(* (unsigned char *) s))
651443a7
DD
395 s++;
396
397 /* Are we at the end of the string? */
398 if (*s) {
399 /* remember the beginning of the token */
400 t=s;
401
402 /* Is this a '+' or '-' followed by a space (not whitespace)? */
403 if ((*s=='+' || *s=='-') && *(s+1)==' ')
404 s+=2;
0f2ac855 405
651443a7 406 /* Skip to the next space or the end of the string */
32f76175 407 while (!isspace(* (unsigned char *) s) && *s != '\0')
651443a7
DD
408 s++;
409 } else {
410 t=NULL;
411 }
412
413 /* Have we reached the end of the string? */
414 if (*s)
415 *s++='\0';
416 else
417 more=0;
418 return(t);
419}
420
0f2ac855 421
5be7fa93
WD
422void add_exclude_line(struct exclude_struct ***listp,
423 const char *line, int include)
8f3a2d54 424{
5be7fa93
WD
425 char *tok, *p;
426 if (!line || !*line) return;
427 p = strdup(line);
8f3a2d54 428 if (!p) out_of_memory("add_exclude_line");
0f2ac855 429 for (tok=get_exclude_tok(p); tok; tok=get_exclude_tok(NULL))
5be7fa93 430 add_exclude(listp, tok, include);
cd64343a
DD
431 free(p);
432}
433
8f3a2d54 434
c627d613 435static char *cvs_ignore_list[] = {
95dd949c
WD
436 "RCS/", "SCCS/", "CVS/", ".svn/", "CVS.adm", "RCSLOG", "cvslog.*",
437 "tags", "TAGS", ".make.state", ".nse_depinfo",
438 "*~", "#*", ".#*", ", *", "*.old", "*.bak", "*.BAK", "*.orig",
c627d613 439 "*.rej", ".del-*", "*.a", "*.o", "*.obj", "*.so", "*.Z", "*.elc", "*.ln",
95dd949c 440 "core", NULL};
c627d613
AT
441
442
443void add_cvs_excludes(void)
444{
2b6b4d53
AT
445 char fname[MAXPATHLEN];
446 char *p;
447 int i;
0f2ac855 448
2b6b4d53 449 for (i=0; cvs_ignore_list[i]; i++)
5be7fa93 450 add_exclude(&exclude_list, cvs_ignore_list[i], ADD_EXCLUDE);
c627d613 451
a7725e6d
WD
452 if ((p = getenv("HOME"))
453 && pathjoin(fname, sizeof fname, p, ".cvsignore") < sizeof fname)
454 add_exclude_file(&exclude_list, fname, MISSING_OK, ADD_EXCLUDE);
c627d613 455
5be7fa93 456 add_exclude_line(&exclude_list, getenv("CVSIGNORE"), ADD_EXCLUDE);
c627d613 457}