| 1 | /* |
| 2 | Copyright (C) Andrew Tridgell 1996 |
| 3 | Copyright (C) Paul Mackerras 1996 |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 2 of the License, or |
| 8 | (at your option) any later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program; if not, write to the Free Software |
| 17 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 18 | */ |
| 19 | |
| 20 | /* generate and receive file lists */ |
| 21 | |
| 22 | #include "rsync.h" |
| 23 | |
| 24 | extern struct stats stats; |
| 25 | |
| 26 | extern int verbose; |
| 27 | extern int am_server; |
| 28 | extern int always_checksum; |
| 29 | |
| 30 | extern int cvs_exclude; |
| 31 | |
| 32 | extern int recurse; |
| 33 | |
| 34 | extern int one_file_system; |
| 35 | extern int make_backups; |
| 36 | extern int preserve_links; |
| 37 | extern int preserve_hard_links; |
| 38 | extern int preserve_perms; |
| 39 | extern int preserve_devices; |
| 40 | extern int preserve_uid; |
| 41 | extern int preserve_gid; |
| 42 | extern int preserve_times; |
| 43 | extern int relative_paths; |
| 44 | extern int copy_links; |
| 45 | extern int copy_unsafe_links; |
| 46 | extern int remote_version; |
| 47 | extern int io_error; |
| 48 | extern int sanitize_paths; |
| 49 | |
| 50 | static char topsrcname[MAXPATHLEN]; |
| 51 | |
| 52 | static struct exclude_struct **local_exclude_list; |
| 53 | |
| 54 | static struct file_struct null_file; |
| 55 | |
| 56 | static void clean_flist(struct file_list *flist, int strip_root); |
| 57 | |
| 58 | static struct string_area *string_area_new(int size) |
| 59 | { |
| 60 | struct string_area *a; |
| 61 | |
| 62 | if (size <= 0) size = ARENA_SIZE; |
| 63 | a = malloc(sizeof(*a)); |
| 64 | if (!a) out_of_memory("string_area_new"); |
| 65 | a->current = a->base = malloc(size); |
| 66 | if (!a->current) out_of_memory("string_area_new buffer"); |
| 67 | a->end = a->base + size; |
| 68 | a->next = NULL; |
| 69 | |
| 70 | return a; |
| 71 | } |
| 72 | |
| 73 | static void string_area_free(struct string_area *a) |
| 74 | { |
| 75 | struct string_area *next; |
| 76 | |
| 77 | for ( ; a ; a = next) { |
| 78 | next = a->next; |
| 79 | free(a->base); |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | static char *string_area_malloc(struct string_area **ap, int size) |
| 84 | { |
| 85 | char *p; |
| 86 | struct string_area *a; |
| 87 | |
| 88 | /* does the request fit into the current space? */ |
| 89 | a = *ap; |
| 90 | if (a->current + size >= a->end) { |
| 91 | /* no; get space, move new string_area to front of the list */ |
| 92 | a = string_area_new(size > ARENA_SIZE ? size : ARENA_SIZE); |
| 93 | a->next = *ap; |
| 94 | *ap = a; |
| 95 | } |
| 96 | |
| 97 | /* have space; do the "allocation." */ |
| 98 | p = a->current; |
| 99 | a->current += size; |
| 100 | return p; |
| 101 | } |
| 102 | |
| 103 | static char *string_area_strdup(struct string_area **ap, const char *src) |
| 104 | { |
| 105 | char* dest = string_area_malloc(ap, strlen(src) + 1); |
| 106 | return strcpy(dest, src); |
| 107 | } |
| 108 | |
| 109 | static void list_file_entry(struct file_struct *f) |
| 110 | { |
| 111 | char perms[11] = "----------"; |
| 112 | char *perm_map = "rwxrwxrwx"; |
| 113 | int i; |
| 114 | |
| 115 | if (!f->basename) |
| 116 | /* this can happen if duplicate names were removed */ |
| 117 | return; |
| 118 | |
| 119 | for (i=0;i<9;i++) { |
| 120 | if (f->mode & (1<<i)) perms[9-i] = perm_map[8-i]; |
| 121 | } |
| 122 | if (S_ISLNK(f->mode)) perms[0] = 'l'; |
| 123 | if (S_ISDIR(f->mode)) perms[0] = 'd'; |
| 124 | if (S_ISBLK(f->mode)) perms[0] = 'b'; |
| 125 | if (S_ISCHR(f->mode)) perms[0] = 'c'; |
| 126 | if (S_ISSOCK(f->mode)) perms[0] = 's'; |
| 127 | if (S_ISFIFO(f->mode)) perms[0] = 'p'; |
| 128 | |
| 129 | if (preserve_links && S_ISLNK(f->mode)) { |
| 130 | rprintf(FINFO,"%s %11.0f %s %s -> %s\n", |
| 131 | perms, |
| 132 | (double)f->length, timestring(f->modtime), |
| 133 | f_name(f), f->link); |
| 134 | } else { |
| 135 | rprintf(FINFO,"%s %11.0f %s %s\n", |
| 136 | perms, |
| 137 | (double)f->length, timestring(f->modtime), f_name(f)); |
| 138 | } |
| 139 | } |
| 140 | |
| 141 | |
| 142 | int readlink_stat(const char *Path, STRUCT_STAT *Buffer, char *Linkbuf) |
| 143 | { |
| 144 | #if SUPPORT_LINKS |
| 145 | if (copy_links) { |
| 146 | return do_stat(Path, Buffer); |
| 147 | } |
| 148 | if (do_lstat(Path, Buffer) == -1) { |
| 149 | return -1; |
| 150 | } |
| 151 | if (S_ISLNK(Buffer->st_mode)) { |
| 152 | int l; |
| 153 | if ((l = readlink(Path,Linkbuf,MAXPATHLEN-1)) == -1) { |
| 154 | return -1; |
| 155 | } |
| 156 | Linkbuf[l] = 0; |
| 157 | if (copy_unsafe_links && (topsrcname[0] != '\0') && |
| 158 | unsafe_symlink(Linkbuf, topsrcname)) { |
| 159 | return do_stat(Path, Buffer); |
| 160 | } |
| 161 | } |
| 162 | return 0; |
| 163 | #else |
| 164 | return do_stat(Path, Buffer); |
| 165 | #endif |
| 166 | } |
| 167 | |
| 168 | int link_stat(const char *Path, STRUCT_STAT *Buffer) |
| 169 | { |
| 170 | #if SUPPORT_LINKS |
| 171 | if (copy_links) { |
| 172 | return do_stat(Path, Buffer); |
| 173 | } else { |
| 174 | return do_lstat(Path, Buffer); |
| 175 | } |
| 176 | #else |
| 177 | return do_stat(Path, Buffer); |
| 178 | #endif |
| 179 | } |
| 180 | |
| 181 | /* |
| 182 | This function is used to check if a file should be included/excluded |
| 183 | from the list of files based on its name and type etc |
| 184 | */ |
| 185 | static int match_file_name(char *fname,STRUCT_STAT *st) |
| 186 | { |
| 187 | if (check_exclude(fname,local_exclude_list,st)) { |
| 188 | return 0; |
| 189 | } |
| 190 | return 1; |
| 191 | } |
| 192 | |
| 193 | /* used by the one_file_system code */ |
| 194 | static dev_t filesystem_dev; |
| 195 | |
| 196 | static void set_filesystem(char *fname) |
| 197 | { |
| 198 | STRUCT_STAT st; |
| 199 | if (link_stat(fname,&st) != 0) return; |
| 200 | filesystem_dev = st.st_dev; |
| 201 | } |
| 202 | |
| 203 | |
| 204 | static int to_wire_mode(mode_t mode) |
| 205 | { |
| 206 | if (S_ISLNK(mode) && (S_IFLNK != 0120000)) { |
| 207 | return (mode & ~(_S_IFMT)) | 0120000; |
| 208 | } |
| 209 | return (int)mode; |
| 210 | } |
| 211 | |
| 212 | static mode_t from_wire_mode(int mode) |
| 213 | { |
| 214 | if ((mode & (_S_IFMT)) == 0120000 && (S_IFLNK != 0120000)) { |
| 215 | return (mode & ~(_S_IFMT)) | S_IFLNK; |
| 216 | } |
| 217 | return (mode_t)mode; |
| 218 | } |
| 219 | |
| 220 | |
| 221 | static void send_directory(int f,struct file_list *flist,char *dir); |
| 222 | |
| 223 | static char *flist_dir; |
| 224 | |
| 225 | |
| 226 | static void send_file_entry(struct file_struct *file,int f,unsigned base_flags) |
| 227 | { |
| 228 | unsigned char flags; |
| 229 | static time_t last_time; |
| 230 | static mode_t last_mode; |
| 231 | static dev_t last_rdev; |
| 232 | static uid_t last_uid; |
| 233 | static gid_t last_gid; |
| 234 | static char lastname[MAXPATHLEN]; |
| 235 | char *fname; |
| 236 | int l1,l2; |
| 237 | |
| 238 | if (f == -1) return; |
| 239 | |
| 240 | if (!file) { |
| 241 | write_byte(f,0); |
| 242 | return; |
| 243 | } |
| 244 | |
| 245 | fname = f_name(file); |
| 246 | |
| 247 | flags = base_flags; |
| 248 | |
| 249 | if (file->mode == last_mode) flags |= SAME_MODE; |
| 250 | if (file->rdev == last_rdev) flags |= SAME_RDEV; |
| 251 | if (file->uid == last_uid) flags |= SAME_UID; |
| 252 | if (file->gid == last_gid) flags |= SAME_GID; |
| 253 | if (file->modtime == last_time) flags |= SAME_TIME; |
| 254 | |
| 255 | for (l1=0;lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);l1++) ; |
| 256 | l2 = strlen(fname) - l1; |
| 257 | |
| 258 | if (l1 > 0) flags |= SAME_NAME; |
| 259 | if (l2 > 255) flags |= LONG_NAME; |
| 260 | |
| 261 | /* we must make sure we don't send a zero flags byte or the other |
| 262 | end will terminate the flist transfer */ |
| 263 | if (flags == 0 && !S_ISDIR(file->mode)) flags |= FLAG_DELETE; |
| 264 | if (flags == 0) flags |= LONG_NAME; |
| 265 | |
| 266 | write_byte(f,flags); |
| 267 | if (flags & SAME_NAME) |
| 268 | write_byte(f,l1); |
| 269 | if (flags & LONG_NAME) |
| 270 | write_int(f,l2); |
| 271 | else |
| 272 | write_byte(f,l2); |
| 273 | write_buf(f,fname+l1,l2); |
| 274 | |
| 275 | write_longint(f,file->length); |
| 276 | if (!(flags & SAME_TIME)) |
| 277 | write_int(f,(int)file->modtime); |
| 278 | if (!(flags & SAME_MODE)) |
| 279 | write_int(f,to_wire_mode(file->mode)); |
| 280 | if (preserve_uid && !(flags & SAME_UID)) { |
| 281 | add_uid(file->uid); |
| 282 | write_int(f,(int)file->uid); |
| 283 | } |
| 284 | if (preserve_gid && !(flags & SAME_GID)) { |
| 285 | add_gid(file->gid); |
| 286 | write_int(f,(int)file->gid); |
| 287 | } |
| 288 | if (preserve_devices && IS_DEVICE(file->mode) && !(flags & SAME_RDEV)) |
| 289 | write_int(f,(int)file->rdev); |
| 290 | |
| 291 | #if SUPPORT_LINKS |
| 292 | if (preserve_links && S_ISLNK(file->mode)) { |
| 293 | write_int(f,strlen(file->link)); |
| 294 | write_buf(f,file->link,strlen(file->link)); |
| 295 | } |
| 296 | #endif |
| 297 | |
| 298 | #if SUPPORT_HARD_LINKS |
| 299 | if (preserve_hard_links && S_ISREG(file->mode)) { |
| 300 | write_int(f,(int)file->dev); |
| 301 | write_int(f,(int)file->inode); |
| 302 | } |
| 303 | #endif |
| 304 | |
| 305 | if (always_checksum) { |
| 306 | if (remote_version < 21) { |
| 307 | write_buf(f,file->sum,2); |
| 308 | } else { |
| 309 | write_buf(f,file->sum,MD4_SUM_LENGTH); |
| 310 | } |
| 311 | } |
| 312 | |
| 313 | last_mode = file->mode; |
| 314 | last_rdev = file->rdev; |
| 315 | last_uid = file->uid; |
| 316 | last_gid = file->gid; |
| 317 | last_time = file->modtime; |
| 318 | |
| 319 | strlcpy(lastname,fname,MAXPATHLEN); |
| 320 | lastname[MAXPATHLEN-1] = 0; |
| 321 | } |
| 322 | |
| 323 | |
| 324 | |
| 325 | static void receive_file_entry(struct file_struct **fptr, |
| 326 | unsigned flags,int f) |
| 327 | { |
| 328 | static time_t last_time; |
| 329 | static mode_t last_mode; |
| 330 | static dev_t last_rdev; |
| 331 | static uid_t last_uid; |
| 332 | static gid_t last_gid; |
| 333 | static char lastname[MAXPATHLEN]; |
| 334 | char thisname[MAXPATHLEN]; |
| 335 | int l1=0,l2=0; |
| 336 | char *p; |
| 337 | struct file_struct *file; |
| 338 | |
| 339 | if (flags & SAME_NAME) |
| 340 | l1 = read_byte(f); |
| 341 | |
| 342 | if (flags & LONG_NAME) |
| 343 | l2 = read_int(f); |
| 344 | else |
| 345 | l2 = read_byte(f); |
| 346 | |
| 347 | file = (struct file_struct *)malloc(sizeof(*file)); |
| 348 | if (!file) out_of_memory("receive_file_entry"); |
| 349 | memset((char *)file, 0, sizeof(*file)); |
| 350 | (*fptr) = file; |
| 351 | |
| 352 | if (l2 >= MAXPATHLEN-l1) { |
| 353 | rprintf(FERROR,"overflow: flags=0x%x l1=%d l2=%d lastname=%s\n", |
| 354 | flags, l1, l2, lastname); |
| 355 | overflow("receive_file_entry"); |
| 356 | } |
| 357 | |
| 358 | strlcpy(thisname,lastname,l1+1); |
| 359 | read_sbuf(f,&thisname[l1],l2); |
| 360 | thisname[l1+l2] = 0; |
| 361 | |
| 362 | strlcpy(lastname,thisname,MAXPATHLEN); |
| 363 | lastname[MAXPATHLEN-1] = 0; |
| 364 | |
| 365 | clean_fname(thisname); |
| 366 | |
| 367 | if (sanitize_paths) { |
| 368 | sanitize_path(thisname, NULL); |
| 369 | } |
| 370 | |
| 371 | if ((p = strrchr(thisname,'/'))) { |
| 372 | static char *lastdir; |
| 373 | *p = 0; |
| 374 | if (lastdir && strcmp(thisname, lastdir)==0) { |
| 375 | file->dirname = lastdir; |
| 376 | } else { |
| 377 | file->dirname = strdup(thisname); |
| 378 | lastdir = file->dirname; |
| 379 | } |
| 380 | file->basename = strdup(p+1); |
| 381 | } else { |
| 382 | file->dirname = NULL; |
| 383 | file->basename = strdup(thisname); |
| 384 | } |
| 385 | |
| 386 | if (!file->basename) out_of_memory("receive_file_entry 1"); |
| 387 | |
| 388 | |
| 389 | file->flags = flags; |
| 390 | file->length = read_longint(f); |
| 391 | file->modtime = (flags & SAME_TIME) ? last_time : (time_t)read_int(f); |
| 392 | file->mode = (flags & SAME_MODE) ? last_mode : from_wire_mode(read_int(f)); |
| 393 | if (preserve_uid) |
| 394 | file->uid = (flags & SAME_UID) ? last_uid : (uid_t)read_int(f); |
| 395 | if (preserve_gid) |
| 396 | file->gid = (flags & SAME_GID) ? last_gid : (gid_t)read_int(f); |
| 397 | if (preserve_devices && IS_DEVICE(file->mode)) |
| 398 | file->rdev = (flags & SAME_RDEV) ? last_rdev : (dev_t)read_int(f); |
| 399 | |
| 400 | if (preserve_links && S_ISLNK(file->mode)) { |
| 401 | int l = read_int(f); |
| 402 | file->link = (char *)malloc(l+1); |
| 403 | if (!file->link) out_of_memory("receive_file_entry 2"); |
| 404 | read_sbuf(f,file->link,l); |
| 405 | if (sanitize_paths) { |
| 406 | sanitize_path(file->link, file->dirname); |
| 407 | } |
| 408 | } |
| 409 | |
| 410 | #if SUPPORT_HARD_LINKS |
| 411 | if (preserve_hard_links && S_ISREG(file->mode)) { |
| 412 | file->dev = read_int(f); |
| 413 | file->inode = read_int(f); |
| 414 | } |
| 415 | #endif |
| 416 | |
| 417 | if (always_checksum) { |
| 418 | file->sum = (char *)malloc(MD4_SUM_LENGTH); |
| 419 | if (!file->sum) out_of_memory("md4 sum"); |
| 420 | if (remote_version < 21) { |
| 421 | read_buf(f,file->sum,2); |
| 422 | } else { |
| 423 | read_buf(f,file->sum,MD4_SUM_LENGTH); |
| 424 | } |
| 425 | } |
| 426 | |
| 427 | last_mode = file->mode; |
| 428 | last_rdev = file->rdev; |
| 429 | last_uid = file->uid; |
| 430 | last_gid = file->gid; |
| 431 | last_time = file->modtime; |
| 432 | |
| 433 | if (!preserve_perms) { |
| 434 | extern int orig_umask; |
| 435 | /* set an appropriate set of permissions based on original |
| 436 | permissions and umask. This emulates what GNU cp does */ |
| 437 | file->mode &= ~orig_umask; |
| 438 | } |
| 439 | } |
| 440 | |
| 441 | |
| 442 | /* determine if a file in a different filesstem should be skipped |
| 443 | when one_file_system is set. We bascally only want to include |
| 444 | the mount points - but they can be hard to find! */ |
| 445 | static int skip_filesystem(char *fname, STRUCT_STAT *st) |
| 446 | { |
| 447 | STRUCT_STAT st2; |
| 448 | char *p = strrchr(fname, '/'); |
| 449 | |
| 450 | /* skip all but directories */ |
| 451 | if (!S_ISDIR(st->st_mode)) return 1; |
| 452 | |
| 453 | /* if its not a subdirectory then allow */ |
| 454 | if (!p) return 0; |
| 455 | |
| 456 | *p = 0; |
| 457 | if (link_stat(fname, &st2)) { |
| 458 | *p = '/'; |
| 459 | return 0; |
| 460 | } |
| 461 | *p = '/'; |
| 462 | |
| 463 | return (st2.st_dev != filesystem_dev); |
| 464 | } |
| 465 | |
| 466 | #define STRDUP(ap, p) (ap ? string_area_strdup(ap, p) : strdup(p)) |
| 467 | #define MALLOC(ap, i) (ap ? string_area_malloc(ap, i) : malloc(i)) |
| 468 | |
| 469 | /* create a file_struct for a named file */ |
| 470 | struct file_struct *make_file(int f, char *fname, struct string_area **ap, |
| 471 | int noexcludes) |
| 472 | { |
| 473 | struct file_struct *file; |
| 474 | STRUCT_STAT st; |
| 475 | char sum[SUM_LENGTH]; |
| 476 | char *p; |
| 477 | char cleaned_name[MAXPATHLEN]; |
| 478 | char linkbuf[MAXPATHLEN]; |
| 479 | extern int delete_excluded; |
| 480 | extern int module_id; |
| 481 | |
| 482 | strlcpy(cleaned_name, fname, MAXPATHLEN); |
| 483 | cleaned_name[MAXPATHLEN-1] = 0; |
| 484 | clean_fname(cleaned_name); |
| 485 | if (sanitize_paths) { |
| 486 | sanitize_path(cleaned_name, NULL); |
| 487 | } |
| 488 | fname = cleaned_name; |
| 489 | |
| 490 | memset(sum,0,SUM_LENGTH); |
| 491 | |
| 492 | if (readlink_stat(fname,&st,linkbuf) != 0) { |
| 493 | io_error = 1; |
| 494 | rprintf(FERROR,"readlink %s: %s\n", |
| 495 | fname,strerror(errno)); |
| 496 | return NULL; |
| 497 | } |
| 498 | |
| 499 | /* we use noexcludes from backup.c */ |
| 500 | if (noexcludes) goto skip_excludes; |
| 501 | |
| 502 | if (S_ISDIR(st.st_mode) && !recurse) { |
| 503 | rprintf(FINFO,"skipping directory %s\n",fname); |
| 504 | return NULL; |
| 505 | } |
| 506 | |
| 507 | if (one_file_system && st.st_dev != filesystem_dev) { |
| 508 | if (skip_filesystem(fname, &st)) |
| 509 | return NULL; |
| 510 | } |
| 511 | |
| 512 | /* f is set to -1 when calculating deletion file list */ |
| 513 | if (((f != -1) || !delete_excluded) && !match_file_name(fname,&st)) |
| 514 | return NULL; |
| 515 | |
| 516 | |
| 517 | if (lp_ignore_nonreadable(module_id) && access(fname, R_OK) != 0) |
| 518 | return NULL; |
| 519 | |
| 520 | skip_excludes: |
| 521 | |
| 522 | if (verbose > 2) |
| 523 | rprintf(FINFO,"make_file(%d,%s)\n",f,fname); |
| 524 | |
| 525 | file = (struct file_struct *)malloc(sizeof(*file)); |
| 526 | if (!file) out_of_memory("make_file"); |
| 527 | memset((char *)file,0,sizeof(*file)); |
| 528 | |
| 529 | if ((p = strrchr(fname,'/'))) { |
| 530 | static char *lastdir; |
| 531 | *p = 0; |
| 532 | if (lastdir && strcmp(fname, lastdir)==0) { |
| 533 | file->dirname = lastdir; |
| 534 | } else { |
| 535 | file->dirname = strdup(fname); |
| 536 | lastdir = file->dirname; |
| 537 | } |
| 538 | file->basename = STRDUP(ap, p+1); |
| 539 | *p = '/'; |
| 540 | } else { |
| 541 | file->dirname = NULL; |
| 542 | file->basename = STRDUP(ap, fname); |
| 543 | } |
| 544 | |
| 545 | file->modtime = st.st_mtime; |
| 546 | file->length = st.st_size; |
| 547 | file->mode = st.st_mode; |
| 548 | file->uid = st.st_uid; |
| 549 | file->gid = st.st_gid; |
| 550 | file->dev = st.st_dev; |
| 551 | file->inode = st.st_ino; |
| 552 | #ifdef HAVE_ST_RDEV |
| 553 | file->rdev = st.st_rdev; |
| 554 | #endif |
| 555 | |
| 556 | #if SUPPORT_LINKS |
| 557 | if (S_ISLNK(st.st_mode)) { |
| 558 | file->link = STRDUP(ap, linkbuf); |
| 559 | } |
| 560 | #endif |
| 561 | |
| 562 | if (always_checksum) { |
| 563 | file->sum = (char *)MALLOC(ap, MD4_SUM_LENGTH); |
| 564 | if (!file->sum) out_of_memory("md4 sum"); |
| 565 | /* drat. we have to provide a null checksum for non-regular |
| 566 | files in order to be compatible with earlier versions |
| 567 | of rsync */ |
| 568 | if (S_ISREG(st.st_mode)) { |
| 569 | file_checksum(fname,file->sum,st.st_size); |
| 570 | } else { |
| 571 | memset(file->sum, 0, MD4_SUM_LENGTH); |
| 572 | } |
| 573 | } |
| 574 | |
| 575 | if (flist_dir) { |
| 576 | static char *lastdir; |
| 577 | if (lastdir && strcmp(lastdir, flist_dir)==0) { |
| 578 | file->basedir = lastdir; |
| 579 | } else { |
| 580 | file->basedir = strdup(flist_dir); |
| 581 | lastdir = file->basedir; |
| 582 | } |
| 583 | } else { |
| 584 | file->basedir = NULL; |
| 585 | } |
| 586 | |
| 587 | if (!S_ISDIR(st.st_mode)) |
| 588 | stats.total_size += st.st_size; |
| 589 | |
| 590 | return file; |
| 591 | } |
| 592 | |
| 593 | |
| 594 | |
| 595 | void send_file_name(int f,struct file_list *flist,char *fname, |
| 596 | int recursive, unsigned base_flags) |
| 597 | { |
| 598 | struct file_struct *file; |
| 599 | |
| 600 | file = make_file(f,fname, &flist->string_area, 0); |
| 601 | |
| 602 | if (!file) return; |
| 603 | |
| 604 | if (flist->count >= flist->malloced) { |
| 605 | if (flist->malloced < 1000) |
| 606 | flist->malloced += 1000; |
| 607 | else |
| 608 | flist->malloced *= 2; |
| 609 | flist->files = (struct file_struct **)realloc(flist->files, |
| 610 | sizeof(flist->files[0])* |
| 611 | flist->malloced); |
| 612 | if (!flist->files) |
| 613 | out_of_memory("send_file_name"); |
| 614 | } |
| 615 | |
| 616 | if (strcmp(file->basename,"")) { |
| 617 | flist->files[flist->count++] = file; |
| 618 | send_file_entry(file,f,base_flags); |
| 619 | } |
| 620 | |
| 621 | if (S_ISDIR(file->mode) && recursive) { |
| 622 | struct exclude_struct **last_exclude_list = local_exclude_list; |
| 623 | send_directory(f,flist,f_name(file)); |
| 624 | local_exclude_list = last_exclude_list; |
| 625 | return; |
| 626 | } |
| 627 | } |
| 628 | |
| 629 | |
| 630 | |
| 631 | static void send_directory(int f,struct file_list *flist,char *dir) |
| 632 | { |
| 633 | DIR *d; |
| 634 | struct dirent *di; |
| 635 | char fname[MAXPATHLEN]; |
| 636 | int l; |
| 637 | char *p; |
| 638 | |
| 639 | d = opendir(dir); |
| 640 | if (!d) { |
| 641 | io_error = 1; |
| 642 | rprintf(FERROR,"opendir(%s): %s\n", |
| 643 | dir,strerror(errno)); |
| 644 | return; |
| 645 | } |
| 646 | |
| 647 | strlcpy(fname,dir,MAXPATHLEN); |
| 648 | l = strlen(fname); |
| 649 | if (fname[l-1] != '/') { |
| 650 | if (l == MAXPATHLEN-1) { |
| 651 | io_error = 1; |
| 652 | rprintf(FERROR,"skipping long-named directory %s\n",fname); |
| 653 | closedir(d); |
| 654 | return; |
| 655 | } |
| 656 | strlcat(fname,"/", MAXPATHLEN); |
| 657 | l++; |
| 658 | } |
| 659 | p = fname + strlen(fname); |
| 660 | |
| 661 | local_exclude_list = NULL; |
| 662 | |
| 663 | if (cvs_exclude) { |
| 664 | if (strlen(fname) + strlen(".cvsignore") <= MAXPATHLEN-1) { |
| 665 | strcpy(p,".cvsignore"); |
| 666 | local_exclude_list = make_exclude_list(fname,NULL,0,0); |
| 667 | } else { |
| 668 | io_error = 1; |
| 669 | rprintf(FINFO,"cannot cvs-exclude in long-named directory %s\n",fname); |
| 670 | } |
| 671 | } |
| 672 | |
| 673 | for (di=readdir(d); di; di=readdir(d)) { |
| 674 | char *dname = d_name(di); |
| 675 | if (strcmp(dname,".")==0 || |
| 676 | strcmp(dname,"..")==0) |
| 677 | continue; |
| 678 | strlcpy(p,dname,MAXPATHLEN-l); |
| 679 | send_file_name(f,flist,fname,recurse,0); |
| 680 | } |
| 681 | |
| 682 | if (local_exclude_list) { |
| 683 | add_exclude_list("!", &local_exclude_list, 0); |
| 684 | } |
| 685 | |
| 686 | closedir(d); |
| 687 | } |
| 688 | |
| 689 | |
| 690 | struct file_list *send_file_list(int f,int argc,char *argv[]) |
| 691 | { |
| 692 | int i,l; |
| 693 | STRUCT_STAT st; |
| 694 | char *p,*dir,*olddir; |
| 695 | char lastpath[MAXPATHLEN]=""; |
| 696 | struct file_list *flist; |
| 697 | int64 start_write; |
| 698 | |
| 699 | if (verbose && recurse && !am_server && f != -1) { |
| 700 | rprintf(FINFO,"building file list ... "); |
| 701 | if (verbose > 1) |
| 702 | rprintf(FINFO, "\n"); |
| 703 | rflush(FINFO); |
| 704 | } |
| 705 | |
| 706 | start_write = stats.total_written; |
| 707 | |
| 708 | flist = flist_new(); |
| 709 | |
| 710 | if (f != -1) { |
| 711 | io_start_buffering(f); |
| 712 | } |
| 713 | |
| 714 | for (i=0;i<argc;i++) { |
| 715 | char *fname = topsrcname; |
| 716 | |
| 717 | strlcpy(fname,argv[i],MAXPATHLEN); |
| 718 | |
| 719 | l = strlen(fname); |
| 720 | if (l != 1 && fname[l-1] == '/') { |
| 721 | if ((l == 2) && (fname[0] == '.')) { |
| 722 | /* Turn ./ into just . rather than ./. |
| 723 | This was put in to avoid a problem with |
| 724 | rsync -aR --delete from ./ |
| 725 | The send_file_name() below of ./ was |
| 726 | mysteriously preventing deletes */ |
| 727 | fname[1] = 0; |
| 728 | } else { |
| 729 | strlcat(fname,".",MAXPATHLEN); |
| 730 | } |
| 731 | } |
| 732 | |
| 733 | if (link_stat(fname,&st) != 0) { |
| 734 | if (f != -1) { |
| 735 | io_error=1; |
| 736 | rprintf(FERROR,"link_stat %s : %s\n",fname,strerror(errno)); |
| 737 | } |
| 738 | continue; |
| 739 | } |
| 740 | |
| 741 | if (S_ISDIR(st.st_mode) && !recurse) { |
| 742 | rprintf(FINFO,"skipping directory %s\n",fname); |
| 743 | continue; |
| 744 | } |
| 745 | |
| 746 | dir = NULL; |
| 747 | olddir = NULL; |
| 748 | |
| 749 | if (!relative_paths) { |
| 750 | p = strrchr(fname,'/'); |
| 751 | if (p) { |
| 752 | *p = 0; |
| 753 | if (p == fname) |
| 754 | dir = "/"; |
| 755 | else |
| 756 | dir = fname; |
| 757 | fname = p+1; |
| 758 | } |
| 759 | } else if (f != -1 && (p=strrchr(fname,'/'))) { |
| 760 | /* this ensures we send the intermediate directories, |
| 761 | thus getting their permissions right */ |
| 762 | *p = 0; |
| 763 | if (strcmp(lastpath,fname)) { |
| 764 | strlcpy(lastpath, fname, sizeof(lastpath)); |
| 765 | *p = '/'; |
| 766 | for (p=fname+1; (p=strchr(p,'/')); p++) { |
| 767 | int copy_links_saved = copy_links; |
| 768 | int recurse_saved = recurse; |
| 769 | *p = 0; |
| 770 | copy_links = copy_unsafe_links; |
| 771 | /* set recurse to 1 to prevent make_file |
| 772 | from ignoring directory, but still |
| 773 | turn off the recursive parameter to |
| 774 | send_file_name */ |
| 775 | recurse = 1; |
| 776 | send_file_name(f, flist, fname, 0, 0); |
| 777 | copy_links = copy_links_saved; |
| 778 | recurse = recurse_saved; |
| 779 | *p = '/'; |
| 780 | } |
| 781 | } else { |
| 782 | *p = '/'; |
| 783 | } |
| 784 | } |
| 785 | |
| 786 | if (!*fname) |
| 787 | fname = "."; |
| 788 | |
| 789 | if (dir && *dir) { |
| 790 | olddir = push_dir(dir, 1); |
| 791 | |
| 792 | if (!olddir) { |
| 793 | io_error=1; |
| 794 | rprintf(FERROR,"push_dir %s : %s\n", |
| 795 | dir,strerror(errno)); |
| 796 | continue; |
| 797 | } |
| 798 | |
| 799 | flist_dir = dir; |
| 800 | } |
| 801 | |
| 802 | if (one_file_system) |
| 803 | set_filesystem(fname); |
| 804 | |
| 805 | send_file_name(f,flist,fname,recurse,FLAG_DELETE); |
| 806 | |
| 807 | if (olddir != NULL) { |
| 808 | flist_dir = NULL; |
| 809 | if (pop_dir(olddir) != 0) { |
| 810 | rprintf(FERROR,"pop_dir %s : %s\n", |
| 811 | dir,strerror(errno)); |
| 812 | exit_cleanup(RERR_FILESELECT); |
| 813 | } |
| 814 | } |
| 815 | } |
| 816 | |
| 817 | topsrcname[0] = '\0'; |
| 818 | |
| 819 | if (f != -1) { |
| 820 | send_file_entry(NULL,f,0); |
| 821 | } |
| 822 | |
| 823 | if (verbose && recurse && !am_server && f != -1) |
| 824 | rprintf(FINFO,"done\n"); |
| 825 | |
| 826 | clean_flist(flist, 0); |
| 827 | |
| 828 | /* now send the uid/gid list. This was introduced in protocol |
| 829 | version 15 */ |
| 830 | if (f != -1 && remote_version >= 15) { |
| 831 | send_uid_list(f); |
| 832 | } |
| 833 | |
| 834 | /* if protocol version is >= 17 then send the io_error flag */ |
| 835 | if (f != -1 && remote_version >= 17) { |
| 836 | extern int module_id; |
| 837 | write_int(f, lp_ignore_errors(module_id)? 0 : io_error); |
| 838 | } |
| 839 | |
| 840 | if (f != -1) { |
| 841 | io_end_buffering(f); |
| 842 | stats.flist_size = stats.total_written - start_write; |
| 843 | stats.num_files = flist->count; |
| 844 | } |
| 845 | |
| 846 | if (verbose > 2) |
| 847 | rprintf(FINFO,"send_file_list done\n"); |
| 848 | |
| 849 | return flist; |
| 850 | } |
| 851 | |
| 852 | |
| 853 | struct file_list *recv_file_list(int f) |
| 854 | { |
| 855 | struct file_list *flist; |
| 856 | unsigned char flags; |
| 857 | int64 start_read; |
| 858 | extern int list_only; |
| 859 | |
| 860 | if (verbose && recurse && !am_server) { |
| 861 | rprintf(FINFO,"receiving file list ... "); |
| 862 | rflush(FINFO); |
| 863 | } |
| 864 | |
| 865 | start_read = stats.total_read; |
| 866 | |
| 867 | flist = (struct file_list *)malloc(sizeof(flist[0])); |
| 868 | if (!flist) |
| 869 | goto oom; |
| 870 | |
| 871 | flist->count=0; |
| 872 | flist->malloced=1000; |
| 873 | flist->files = (struct file_struct **)malloc(sizeof(flist->files[0])* |
| 874 | flist->malloced); |
| 875 | if (!flist->files) |
| 876 | goto oom; |
| 877 | |
| 878 | |
| 879 | for (flags=read_byte(f); flags; flags=read_byte(f)) { |
| 880 | int i = flist->count; |
| 881 | |
| 882 | if (i >= flist->malloced) { |
| 883 | if (flist->malloced < 1000) |
| 884 | flist->malloced += 1000; |
| 885 | else |
| 886 | flist->malloced *= 2; |
| 887 | flist->files =(struct file_struct **)realloc(flist->files, |
| 888 | sizeof(flist->files[0])* |
| 889 | flist->malloced); |
| 890 | if (!flist->files) |
| 891 | goto oom; |
| 892 | } |
| 893 | |
| 894 | receive_file_entry(&flist->files[i],flags,f); |
| 895 | |
| 896 | if (S_ISREG(flist->files[i]->mode)) |
| 897 | stats.total_size += flist->files[i]->length; |
| 898 | |
| 899 | flist->count++; |
| 900 | |
| 901 | if (verbose > 2) |
| 902 | rprintf(FINFO,"recv_file_name(%s)\n",f_name(flist->files[i])); |
| 903 | } |
| 904 | |
| 905 | |
| 906 | if (verbose > 2) |
| 907 | rprintf(FINFO,"received %d names\n",flist->count); |
| 908 | |
| 909 | clean_flist(flist, relative_paths); |
| 910 | |
| 911 | if (verbose && recurse && !am_server) { |
| 912 | rprintf(FINFO,"done\n"); |
| 913 | } |
| 914 | |
| 915 | /* now recv the uid/gid list. This was introduced in protocol version 15 */ |
| 916 | if (f != -1 && remote_version >= 15) { |
| 917 | recv_uid_list(f, flist); |
| 918 | } |
| 919 | |
| 920 | /* if protocol version is >= 17 then recv the io_error flag */ |
| 921 | if (f != -1 && remote_version >= 17) { |
| 922 | extern int module_id; |
| 923 | extern int ignore_errors; |
| 924 | if (lp_ignore_errors(module_id) || ignore_errors) { |
| 925 | read_int(f); |
| 926 | } else { |
| 927 | io_error |= read_int(f); |
| 928 | } |
| 929 | } |
| 930 | |
| 931 | if (list_only) { |
| 932 | int i; |
| 933 | for (i=0;i<flist->count;i++) { |
| 934 | list_file_entry(flist->files[i]); |
| 935 | } |
| 936 | } |
| 937 | |
| 938 | |
| 939 | if (verbose > 2) |
| 940 | rprintf(FINFO,"recv_file_list done\n"); |
| 941 | |
| 942 | stats.flist_size = stats.total_read - start_read; |
| 943 | stats.num_files = flist->count; |
| 944 | |
| 945 | return flist; |
| 946 | |
| 947 | oom: |
| 948 | out_of_memory("recv_file_list"); |
| 949 | return NULL; /* not reached */ |
| 950 | } |
| 951 | |
| 952 | |
| 953 | int file_compare(struct file_struct **f1,struct file_struct **f2) |
| 954 | { |
| 955 | if (!(*f1)->basename && !(*f2)->basename) return 0; |
| 956 | if (!(*f1)->basename) return -1; |
| 957 | if (!(*f2)->basename) return 1; |
| 958 | if ((*f1)->dirname == (*f2)->dirname) |
| 959 | return u_strcmp((*f1)->basename, (*f2)->basename); |
| 960 | return u_strcmp(f_name(*f1),f_name(*f2)); |
| 961 | } |
| 962 | |
| 963 | |
| 964 | int flist_find(struct file_list *flist,struct file_struct *f) |
| 965 | { |
| 966 | int low=0,high=flist->count-1; |
| 967 | |
| 968 | if (flist->count <= 0) return -1; |
| 969 | |
| 970 | while (low != high) { |
| 971 | int mid = (low+high)/2; |
| 972 | int ret = file_compare(&flist->files[flist_up(flist, mid)],&f); |
| 973 | if (ret == 0) return flist_up(flist, mid); |
| 974 | if (ret > 0) { |
| 975 | high=mid; |
| 976 | } else { |
| 977 | low=mid+1; |
| 978 | } |
| 979 | } |
| 980 | |
| 981 | if (file_compare(&flist->files[flist_up(flist,low)],&f) == 0) |
| 982 | return flist_up(flist,low); |
| 983 | return -1; |
| 984 | } |
| 985 | |
| 986 | |
| 987 | /* |
| 988 | * free up one file |
| 989 | */ |
| 990 | void free_file(struct file_struct *file) |
| 991 | { |
| 992 | if (!file) return; |
| 993 | if (file->basename) free(file->basename); |
| 994 | if (file->link) free(file->link); |
| 995 | if (file->sum) free(file->sum); |
| 996 | *file = null_file; |
| 997 | } |
| 998 | |
| 999 | |
| 1000 | /* |
| 1001 | * allocate a new file list |
| 1002 | */ |
| 1003 | struct file_list *flist_new() |
| 1004 | { |
| 1005 | struct file_list *flist; |
| 1006 | |
| 1007 | flist = (struct file_list *)malloc(sizeof(flist[0])); |
| 1008 | if (!flist) out_of_memory("send_file_list"); |
| 1009 | |
| 1010 | flist->count=0; |
| 1011 | flist->malloced = 1000; |
| 1012 | flist->files = (struct file_struct **)malloc(sizeof(flist->files[0])* |
| 1013 | flist->malloced); |
| 1014 | if (!flist->files) out_of_memory("send_file_list"); |
| 1015 | #if ARENA_SIZE > 0 |
| 1016 | flist->string_area = string_area_new(0); |
| 1017 | #else |
| 1018 | flist->string_area = NULL; |
| 1019 | #endif |
| 1020 | return flist; |
| 1021 | } |
| 1022 | /* |
| 1023 | * free up all elements in a flist |
| 1024 | */ |
| 1025 | void flist_free(struct file_list *flist) |
| 1026 | { |
| 1027 | int i; |
| 1028 | for (i=1;i<flist->count;i++) { |
| 1029 | if (!flist->string_area) |
| 1030 | free_file(flist->files[i]); |
| 1031 | free(flist->files[i]); |
| 1032 | } |
| 1033 | memset((char *)flist->files, 0, sizeof(flist->files[0])*flist->count); |
| 1034 | free(flist->files); |
| 1035 | if (flist->string_area) |
| 1036 | string_area_free(flist->string_area); |
| 1037 | memset((char *)flist, 0, sizeof(*flist)); |
| 1038 | free(flist); |
| 1039 | } |
| 1040 | |
| 1041 | |
| 1042 | /* |
| 1043 | * This routine ensures we don't have any duplicate names in our file list. |
| 1044 | * duplicate names can cause corruption because of the pipelining |
| 1045 | */ |
| 1046 | static void clean_flist(struct file_list *flist, int strip_root) |
| 1047 | { |
| 1048 | int i; |
| 1049 | |
| 1050 | if (!flist || flist->count == 0) |
| 1051 | return; |
| 1052 | |
| 1053 | qsort(flist->files,flist->count, |
| 1054 | sizeof(flist->files[0]), |
| 1055 | (int (*)())file_compare); |
| 1056 | |
| 1057 | for (i=1;i<flist->count;i++) { |
| 1058 | if (flist->files[i]->basename && |
| 1059 | flist->files[i-1]->basename && |
| 1060 | strcmp(f_name(flist->files[i]), |
| 1061 | f_name(flist->files[i-1])) == 0) { |
| 1062 | if (verbose > 1 && !am_server) |
| 1063 | rprintf(FINFO,"removing duplicate name %s from file list %d\n", |
| 1064 | f_name(flist->files[i-1]),i-1); |
| 1065 | /* it's not great that the flist knows the semantics of the |
| 1066 | * file memory usage, but i'd rather not add a flag byte |
| 1067 | * to that struct. XXX can i use a bit in the flags field? */ |
| 1068 | if (flist->string_area) |
| 1069 | flist->files[i][0] = null_file; |
| 1070 | else |
| 1071 | free_file(flist->files[i]); |
| 1072 | } |
| 1073 | } |
| 1074 | |
| 1075 | if (strip_root) { |
| 1076 | /* we need to strip off the root directory in the case |
| 1077 | of relative paths, but this must be done _after_ |
| 1078 | the sorting phase */ |
| 1079 | for (i=0;i<flist->count;i++) { |
| 1080 | if (flist->files[i]->dirname && |
| 1081 | flist->files[i]->dirname[0] == '/') { |
| 1082 | memmove(&flist->files[i]->dirname[0], |
| 1083 | &flist->files[i]->dirname[1], |
| 1084 | strlen(flist->files[i]->dirname)); |
| 1085 | } |
| 1086 | |
| 1087 | if (flist->files[i]->dirname && |
| 1088 | !flist->files[i]->dirname[0]) { |
| 1089 | flist->files[i]->dirname = NULL; |
| 1090 | } |
| 1091 | } |
| 1092 | } |
| 1093 | |
| 1094 | |
| 1095 | if (verbose <= 3) return; |
| 1096 | |
| 1097 | for (i=0;i<flist->count;i++) { |
| 1098 | rprintf(FINFO,"[%d] i=%d %s %s mode=0%o len=%.0f\n", |
| 1099 | getpid(), i, |
| 1100 | NS(flist->files[i]->dirname), |
| 1101 | NS(flist->files[i]->basename), |
| 1102 | flist->files[i]->mode, |
| 1103 | (double)flist->files[i]->length); |
| 1104 | } |
| 1105 | } |
| 1106 | |
| 1107 | |
| 1108 | /* |
| 1109 | * return the full filename of a flist entry |
| 1110 | */ |
| 1111 | char *f_name(struct file_struct *f) |
| 1112 | { |
| 1113 | static char names[10][MAXPATHLEN]; |
| 1114 | static int n; |
| 1115 | char *p = names[n]; |
| 1116 | |
| 1117 | if (!f || !f->basename) return NULL; |
| 1118 | |
| 1119 | n = (n+1)%10; |
| 1120 | |
| 1121 | if (f->dirname) { |
| 1122 | strlcpy(p, f->dirname, MAXPATHLEN); |
| 1123 | strlcat(p, "/", MAXPATHLEN); |
| 1124 | strlcat(p, f->basename, MAXPATHLEN); |
| 1125 | } else { |
| 1126 | strlcpy(p, f->basename, MAXPATHLEN); |
| 1127 | } |
| 1128 | |
| 1129 | return p; |
| 1130 | } |
| 1131 | |