| 1 | /* -*- c-file-style: "linux" -*- |
| 2 | * |
| 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 |
| 6 | * |
| 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. |
| 11 | * |
| 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. |
| 16 | * |
| 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 | */ |
| 21 | |
| 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 :) */ |
| 24 | |
| 25 | /* include/exclude cluestick added by Martin Pool <mbp@samba.org> */ |
| 26 | |
| 27 | #include "rsync.h" |
| 28 | |
| 29 | extern int verbose; |
| 30 | extern int delete_mode; |
| 31 | |
| 32 | static struct exclude_struct **exclude_list; |
| 33 | |
| 34 | /** Build an exclude structure given a exclude pattern */ |
| 35 | static struct exclude_struct *make_exclude(const char *pattern, int include) |
| 36 | { |
| 37 | struct exclude_struct *ret; |
| 38 | |
| 39 | ret = (struct exclude_struct *)malloc(sizeof(*ret)); |
| 40 | if (!ret) out_of_memory("make_exclude"); |
| 41 | |
| 42 | memset(ret, 0, sizeof(*ret)); |
| 43 | |
| 44 | if (strncmp(pattern,"- ",2) == 0) { |
| 45 | pattern += 2; |
| 46 | } else if (strncmp(pattern,"+ ",2) == 0) { |
| 47 | ret->include = 1; |
| 48 | pattern += 2; |
| 49 | } else { |
| 50 | ret->include = include; |
| 51 | } |
| 52 | |
| 53 | ret->pattern = strdup(pattern); |
| 54 | |
| 55 | if (!ret->pattern) out_of_memory("make_exclude"); |
| 56 | |
| 57 | if (strpbrk(pattern, "*[?")) { |
| 58 | ret->regular_exp = 1; |
| 59 | ret->fnmatch_flags = FNM_PATHNAME; |
| 60 | if (strstr(pattern, "**")) { |
| 61 | static int tested; |
| 62 | if (!tested) { |
| 63 | tested = 1; |
| 64 | if (fnmatch("a/b/*", "a/b/c/d", FNM_PATHNAME)==0) { |
| 65 | rprintf(FERROR,"WARNING: fnmatch FNM_PATHNAME is broken on your system\n"); |
| 66 | } |
| 67 | } |
| 68 | ret->fnmatch_flags = 0; |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | if (strlen(pattern) > 1 && pattern[strlen(pattern)-1] == '/') { |
| 73 | ret->pattern[strlen(pattern)-1] = 0; |
| 74 | ret->directory = 1; |
| 75 | } |
| 76 | |
| 77 | if (!strchr(ret->pattern,'/')) { |
| 78 | ret->local = 1; |
| 79 | } |
| 80 | |
| 81 | return ret; |
| 82 | } |
| 83 | |
| 84 | static void free_exclude(struct exclude_struct *ex) |
| 85 | { |
| 86 | free(ex->pattern); |
| 87 | memset(ex,0,sizeof(*ex)); |
| 88 | free(ex); |
| 89 | } |
| 90 | |
| 91 | static int check_one_exclude(char *name, struct exclude_struct *ex, |
| 92 | STRUCT_STAT *st) |
| 93 | { |
| 94 | char *p; |
| 95 | int match_start=0; |
| 96 | char *pattern = ex->pattern; |
| 97 | |
| 98 | if (ex->local && (p=strrchr(name,'/'))) |
| 99 | name = p+1; |
| 100 | |
| 101 | if (!name[0]) return 0; |
| 102 | |
| 103 | if (ex->directory && !S_ISDIR(st->st_mode)) return 0; |
| 104 | |
| 105 | if (*pattern == '/' && *name != '/') { |
| 106 | match_start = 1; |
| 107 | pattern++; |
| 108 | } |
| 109 | |
| 110 | if (ex->regular_exp) { |
| 111 | if (fnmatch(pattern, name, ex->fnmatch_flags) == 0) { |
| 112 | return 1; |
| 113 | } |
| 114 | } else { |
| 115 | int l1 = strlen(name); |
| 116 | int l2 = strlen(pattern); |
| 117 | if (l2 <= l1 && |
| 118 | strcmp(name+(l1-l2),pattern) == 0 && |
| 119 | (l1==l2 || (!match_start && name[l1-(l2+1)] == '/'))) { |
| 120 | return 1; |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | return 0; |
| 125 | } |
| 126 | |
| 127 | |
| 128 | static void report_exclude_result(char const *name, |
| 129 | struct exclude_struct const *ent, |
| 130 | STRUCT_STAT const *st) |
| 131 | { |
| 132 | /* If a trailing slash is present to match only directories, |
| 133 | * then it is stripped out by make_exclude. So as a special |
| 134 | * case we add it back in here. */ |
| 135 | |
| 136 | if (verbose >= 2) |
| 137 | rprintf(FINFO, "%s %s %s because of pattern %s%s\n", |
| 138 | ent->include ? "including" : "excluding", |
| 139 | S_ISDIR(st->st_mode) ? "directory" : "file", |
| 140 | name, ent->pattern, |
| 141 | ent->directory ? "/" : ""); |
| 142 | } |
| 143 | |
| 144 | |
| 145 | /* |
| 146 | * Return true if file NAME is defined to be excluded by either |
| 147 | * LOCAL_EXCLUDE_LIST or the globals EXCLUDE_LIST. |
| 148 | */ |
| 149 | int check_exclude(char *name, struct exclude_struct **local_exclude_list, |
| 150 | STRUCT_STAT *st) |
| 151 | { |
| 152 | int n; |
| 153 | struct exclude_struct *ent; |
| 154 | |
| 155 | if (name && (name[0] == '.') && !name[1]) |
| 156 | /* never exclude '.', even if somebody does --exclude '*' */ |
| 157 | return 0; |
| 158 | |
| 159 | if (exclude_list) { |
| 160 | for (n=0; exclude_list[n]; n++) { |
| 161 | ent = exclude_list[n]; |
| 162 | if (check_one_exclude(name, ent, st)) { |
| 163 | report_exclude_result(name, ent, st); |
| 164 | return !ent->include; |
| 165 | } |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | if (local_exclude_list) { |
| 170 | for (n=0; local_exclude_list[n]; n++) { |
| 171 | ent = local_exclude_list[n]; |
| 172 | if (check_one_exclude(name, ent, st)) { |
| 173 | report_exclude_result(name, ent, st); |
| 174 | return !ent->include; |
| 175 | } |
| 176 | } |
| 177 | } |
| 178 | |
| 179 | return 0; |
| 180 | } |
| 181 | |
| 182 | |
| 183 | void add_exclude_list(const char *pattern, struct exclude_struct ***list, int include) |
| 184 | { |
| 185 | int len=0; |
| 186 | if (list && *list) |
| 187 | for (; (*list)[len]; len++) ; |
| 188 | |
| 189 | if (strcmp(pattern,"!") == 0) { |
| 190 | if (verbose > 2) |
| 191 | rprintf(FINFO,"clearing exclude list\n"); |
| 192 | while ((len)--) { |
| 193 | free_exclude((*list)[len]); |
| 194 | } |
| 195 | free((*list)); |
| 196 | *list = NULL; |
| 197 | return; |
| 198 | } |
| 199 | |
| 200 | *list = (struct exclude_struct **)Realloc(*list,sizeof(struct exclude_struct *)*(len+2)); |
| 201 | |
| 202 | if (!*list || !((*list)[len] = make_exclude(pattern, include))) |
| 203 | out_of_memory("add_exclude"); |
| 204 | |
| 205 | if (verbose > 2) { |
| 206 | rprintf(FINFO,"add_exclude(%s,%s)\n",pattern, |
| 207 | include ? "include" : "exclude"); |
| 208 | } |
| 209 | |
| 210 | (*list)[len+1] = NULL; |
| 211 | } |
| 212 | |
| 213 | void add_exclude(const char *pattern, int include) |
| 214 | { |
| 215 | add_exclude_list(pattern,&exclude_list, include); |
| 216 | } |
| 217 | |
| 218 | struct exclude_struct **make_exclude_list(const char *fname, |
| 219 | struct exclude_struct **list1, |
| 220 | int fatal, int include) |
| 221 | { |
| 222 | struct exclude_struct **list=list1; |
| 223 | FILE *f; |
| 224 | char line[MAXPATHLEN]; |
| 225 | |
| 226 | if (strcmp(fname, "-")) { |
| 227 | f = fopen(fname,"r"); |
| 228 | } else { |
| 229 | f = fdopen(0, "r"); |
| 230 | } |
| 231 | if (!f) { |
| 232 | if (fatal) { |
| 233 | rsyserr(FERROR, errno, |
| 234 | "failed to open %s file %s", |
| 235 | include ? "include" : "exclude", |
| 236 | fname); |
| 237 | exit_cleanup(RERR_FILEIO); |
| 238 | } |
| 239 | return list; |
| 240 | } |
| 241 | |
| 242 | while (fgets(line,MAXPATHLEN,f)) { |
| 243 | int l = strlen(line); |
| 244 | if (l && line[l-1] == '\n') l--; |
| 245 | line[l] = 0; |
| 246 | if (line[0] && (line[0] != ';') && (line[0] != '#')) { |
| 247 | /* Skip lines starting with semicolon or pound. |
| 248 | It probably wouldn't cause any harm to not skip |
| 249 | them but there's no need to save them. */ |
| 250 | add_exclude_list(line,&list,include); |
| 251 | } |
| 252 | } |
| 253 | fclose(f); |
| 254 | return list; |
| 255 | } |
| 256 | |
| 257 | |
| 258 | void add_exclude_file(const char *fname, int fatal, int include) |
| 259 | { |
| 260 | if (!fname || !*fname) return; |
| 261 | |
| 262 | exclude_list = make_exclude_list(fname,exclude_list,fatal,include); |
| 263 | } |
| 264 | |
| 265 | |
| 266 | void send_exclude_list(int f) |
| 267 | { |
| 268 | int i; |
| 269 | extern int remote_version; |
| 270 | extern int list_only, recurse; |
| 271 | |
| 272 | /* This is a complete hack - blame Rusty. |
| 273 | * |
| 274 | * FIXME: This pattern shows up in the output of |
| 275 | * report_exclude_result(), which is not ideal. */ |
| 276 | if (list_only && !recurse) { |
| 277 | add_exclude("/*/*", 0); |
| 278 | } |
| 279 | |
| 280 | if (!exclude_list) { |
| 281 | write_int(f,0); |
| 282 | return; |
| 283 | } |
| 284 | |
| 285 | for (i=0;exclude_list[i];i++) { |
| 286 | int l; |
| 287 | char pattern[MAXPATHLEN]; |
| 288 | |
| 289 | strlcpy(pattern,exclude_list[i]->pattern,sizeof(pattern)); |
| 290 | if (exclude_list[i]->directory) strlcat(pattern,"/", sizeof(pattern)); |
| 291 | |
| 292 | l = strlen(pattern); |
| 293 | if (l == 0) continue; |
| 294 | if (exclude_list[i]->include) { |
| 295 | if (remote_version < 19) { |
| 296 | rprintf(FERROR,"remote rsync does not support include syntax - aborting\n"); |
| 297 | exit_cleanup(RERR_UNSUPPORTED); |
| 298 | } |
| 299 | write_int(f,l+2); |
| 300 | write_buf(f,"+ ",2); |
| 301 | } else { |
| 302 | write_int(f,l); |
| 303 | } |
| 304 | write_buf(f,pattern,l); |
| 305 | } |
| 306 | |
| 307 | write_int(f,0); |
| 308 | } |
| 309 | |
| 310 | |
| 311 | void recv_exclude_list(int f) |
| 312 | { |
| 313 | char line[MAXPATHLEN]; |
| 314 | unsigned int l; |
| 315 | |
| 316 | while ((l=read_int(f))) { |
| 317 | if (l >= MAXPATHLEN) overflow("recv_exclude_list"); |
| 318 | read_sbuf(f,line,l); |
| 319 | add_exclude(line,0); |
| 320 | } |
| 321 | } |
| 322 | |
| 323 | /* Get the next include/exclude arg from the string. It works in a similar way |
| 324 | ** to strtok - initially an arg is sent over, from then on NULL. This |
| 325 | ** routine takes into account any +/- in the strings and does not |
| 326 | ** consider the space following it as a delimeter. |
| 327 | */ |
| 328 | char *get_exclude_tok(char *p) |
| 329 | { |
| 330 | static char *s; |
| 331 | static int more; |
| 332 | char *t; |
| 333 | |
| 334 | if (p) { |
| 335 | s=p; |
| 336 | if (*p) |
| 337 | more=1; |
| 338 | } |
| 339 | |
| 340 | if (!more) |
| 341 | return(NULL); |
| 342 | |
| 343 | /* Skip over any initial spaces */ |
| 344 | while (isspace(* (unsigned char *) s)) |
| 345 | s++; |
| 346 | |
| 347 | /* Are we at the end of the string? */ |
| 348 | if (*s) { |
| 349 | /* remember the beginning of the token */ |
| 350 | t=s; |
| 351 | |
| 352 | /* Is this a '+' or '-' followed by a space (not whitespace)? */ |
| 353 | if ((*s=='+' || *s=='-') && *(s+1)==' ') |
| 354 | s+=2; |
| 355 | |
| 356 | /* Skip to the next space or the end of the string */ |
| 357 | while (!isspace(* (unsigned char *) s) && *s != '\0') |
| 358 | s++; |
| 359 | } else { |
| 360 | t=NULL; |
| 361 | } |
| 362 | |
| 363 | /* Have we reached the end of the string? */ |
| 364 | if (*s) |
| 365 | *s++='\0'; |
| 366 | else |
| 367 | more=0; |
| 368 | return(t); |
| 369 | } |
| 370 | |
| 371 | |
| 372 | void add_exclude_line(char *p) |
| 373 | { |
| 374 | char *tok; |
| 375 | if (!p || !*p) return; |
| 376 | p = strdup(p); |
| 377 | if (!p) out_of_memory("add_exclude_line"); |
| 378 | for (tok=get_exclude_tok(p); tok; tok=get_exclude_tok(NULL)) |
| 379 | add_exclude(tok, 0); |
| 380 | free(p); |
| 381 | } |
| 382 | |
| 383 | void add_include_line(char *p) |
| 384 | { |
| 385 | char *tok; |
| 386 | if (!p || !*p) return; |
| 387 | p = strdup(p); |
| 388 | if (!p) out_of_memory("add_include_line"); |
| 389 | for (tok=get_exclude_tok(p); tok; tok=get_exclude_tok(NULL)) |
| 390 | add_exclude(tok, 1); |
| 391 | free(p); |
| 392 | } |
| 393 | |
| 394 | |
| 395 | static char *cvs_ignore_list[] = { |
| 396 | "RCS/", "SCCS/", "CVS/", ".svn/", "CVS.adm", "RCSLOG", "cvslog.*", |
| 397 | "tags", "TAGS", ".make.state", ".nse_depinfo", |
| 398 | "*~", "#*", ".#*", ", *", "*.old", "*.bak", "*.BAK", "*.orig", |
| 399 | "*.rej", ".del-*", "*.a", "*.o", "*.obj", "*.so", "*.Z", "*.elc", "*.ln", |
| 400 | "core", NULL}; |
| 401 | |
| 402 | |
| 403 | void add_cvs_excludes(void) |
| 404 | { |
| 405 | char fname[MAXPATHLEN]; |
| 406 | char *p; |
| 407 | int i; |
| 408 | |
| 409 | for (i=0; cvs_ignore_list[i]; i++) |
| 410 | add_exclude(cvs_ignore_list[i], 0); |
| 411 | |
| 412 | if ((p=getenv("HOME")) && strlen(p) < (MAXPATHLEN-12)) { |
| 413 | snprintf(fname,sizeof(fname), "%s/.cvsignore",p); |
| 414 | add_exclude_file(fname,0,0); |
| 415 | } |
| 416 | |
| 417 | add_exclude_line(getenv("CVSIGNORE")); |
| 418 | } |