1 /*- 2 * CPDUP.C 3 * 4 * CPDUP <options> source destination 5 * 6 * (c) Copyright 1997-1999 by Matthew Dillon and Dima Ruban. Permission to 7 * use and distribute based on the FreeBSD copyright. Supplied as-is, 8 * USE WITH EXTREME CAUTION. 9 * 10 * This program attempts to duplicate the source onto the destination as 11 * exactly as possible, retaining modify times, flags, perms, uid, and gid. 12 * It can duplicate devices, files (including hardlinks), softlinks, 13 * directories, and so forth. It is recursive by default! The duplication 14 * is inclusive of removal of files/directories on the destination that do 15 * not exist on the source. This program supports a per-directory exception 16 * file called .cpignore, or a user-specified exception file. 17 * 18 * Safety features: 19 * 20 * - does not cross partition boundries on source 21 * - asks for confirmation on deletions unless -i0 is specified 22 * - refuses to replace a destination directory with a source file 23 * unless -s0 is specified. 24 * - terminates on error 25 * 26 * Copying features: 27 * 28 * - does not copy file if mtime, flags, perms, and size match unless 29 * forced 30 * 31 * - copies to temporary and renames-over the original, allowing 32 * you to update live systems 33 * 34 * - copies uid, gid, mtime, perms, flags, softlinks, devices, hardlinks, 35 * and recurses through directories. 36 * 37 * - accesses a per-directory exclusion file, .cpignore, containing 38 * standard wildcarded ( ? / * style, NOT regex) exclusions. 39 * 40 * - tries to play permissions and flags smart in regards to overwriting 41 * schg files and doing related stuff. 42 * 43 * - Can do MD5 consistancy checks 44 * 45 * - Is able to do incremental mirroring/backups via hardlinks from 46 * the 'previous' version (supplied with -H path). 47 * 48 * $DragonFly: src/bin/cpdup/cpdup.c,v 1.32 2008/11/11 04:36:00 dillon Exp $ 49 */ 50 51 /*- 52 * Example: cc -O cpdup.c -o cpdup -lmd 53 * 54 * ".MD5.CHECKSUMS" contains md5 checksumms for the current directory. 55 * This file is stored on the source. 56 */ 57 58 #include "cpdup.h" 59 #include "hclink.h" 60 #include "hcproto.h" 61 62 #define HSIZE 8192 63 #define HMASK (HSIZE-1) 64 #define HLSIZE 8192 65 #define HLMASK (HLSIZE - 1) 66 67 #define GETBUFSIZE 8192 68 #define GETPATHSIZE 2048 69 #define GETLINKSIZE 1024 70 #define GETIOSIZE 65536 71 72 #ifndef _ST_FLAGS_PRESENT_ 73 #define st_flags st_mode 74 #endif 75 76 typedef struct Node { 77 struct Node *no_Next; 78 struct Node *no_HNext; 79 struct stat *no_Stat; 80 int no_Value; 81 char no_Name[4]; 82 } Node; 83 84 typedef struct List { 85 Node li_Node; 86 Node *li_Hash[HSIZE]; 87 } List; 88 89 struct hlink { 90 ino_t ino; 91 ino_t dino; 92 int refs; 93 struct hlink *next; 94 struct hlink *prev; 95 nlink_t nlinked; 96 char name[]; 97 }; 98 99 typedef struct copy_info { 100 char *spath; 101 char *dpath; 102 dev_t sdevNo; 103 dev_t ddevNo; 104 } *copy_info_t; 105 106 struct hlink *hltable[HLSIZE]; 107 108 void RemoveRecur(const char *dpath, dev_t devNo, struct stat *dstat); 109 void InitList(List *list); 110 void ResetList(List *list); 111 Node *IterateList(List *list, Node *node, int n); 112 int AddList(List *list, const char *name, int n, struct stat *st); 113 static int getbool(const char *str); 114 static char *SplitRemote(char *path); 115 static int ChgrpAllowed(gid_t g); 116 static int OwnerMatch(struct stat *st1, struct stat *st2); 117 #ifdef _ST_FLAGS_PRESENT_ 118 static int FlagsMatch(struct stat *st1, struct stat *st2); 119 #else 120 #define FlagsMatch(st1, st2) 1 121 #endif 122 static struct hlink *hltlookup(struct stat *); 123 static struct hlink *hltadd(struct stat *, const char *); 124 static char *checkHLPath(struct stat *st, const char *spath, const char *dpath); 125 static int validate_check(const char *spath, const char *dpath); 126 static int shash(const char *s); 127 static void hltdelete(struct hlink *); 128 static void hltsetdino(struct hlink *, ino_t); 129 int YesNo(const char *path); 130 static int xrename(const char *src, const char *dst, u_long flags); 131 static int xlink(const char *src, const char *dst, u_long flags); 132 static int xremove(struct HostConf *host, const char *path); 133 static int DoCopy(copy_info_t info, struct stat *stat1, int depth); 134 static int ScanDir(List *list, struct HostConf *host, const char *path, 135 int64_t *CountReadBytes, int n); 136 137 int AskConfirmation = 1; 138 int SafetyOpt = 1; 139 int ForceOpt; 140 int DeviceOpt = 1; 141 int VerboseOpt; 142 int DirShowOpt; 143 int QuietOpt; 144 int NoRemoveOpt; 145 int UseMD5Opt; 146 int UseFSMIDOpt; 147 int SummaryOpt; 148 int CompressOpt; 149 int SlaveOpt; 150 int ReadOnlyOpt; 151 int EnableDirectoryRetries; 152 int DstBaseLen; 153 int ValidateOpt; 154 int HardLinkCount; 155 int ssh_argc; 156 const char *ssh_argv[16]; 157 int DstRootPrivs; 158 int GroupCount; 159 gid_t *GroupList; 160 const char *UseCpFile; 161 const char *UseHLPath; 162 const char *MD5CacheFile; 163 const char *FSMIDCacheFile; 164 165 int64_t CountSourceBytes; 166 int64_t CountSourceItems; 167 int64_t CountCopiedItems; 168 int64_t CountSourceReadBytes; 169 int64_t CountTargetReadBytes; 170 int64_t CountWriteBytes; 171 int64_t CountRemovedItems; 172 int64_t CountLinkedItems; 173 174 struct HostConf SrcHost; 175 struct HostConf DstHost; 176 177 int 178 main(int ac, char **av) 179 { 180 int i; 181 int opt; 182 char *src = NULL; 183 char *dst = NULL; 184 char *ptr; 185 struct timeval start; 186 struct copy_info info; 187 188 signal(SIGPIPE, SIG_IGN); 189 190 gettimeofday(&start, NULL); 191 opterr = 0; 192 while ((opt = getopt(ac, av, ":CdF:fH:Ii:j:K:klM:mopqRSs:uVvX:x")) != -1) { 193 switch (opt) { 194 /* TODO: sort the branches */ 195 case 'C': 196 CompressOpt = 1; 197 break; 198 case 'v': 199 ++VerboseOpt; 200 break; 201 case 'd': 202 DirShowOpt = 1; 203 break; 204 case 'l': 205 setlinebuf(stdout); 206 setlinebuf(stderr); 207 break; 208 case 'V': 209 ++ValidateOpt; 210 break; 211 case 'I': 212 SummaryOpt = 1; 213 break; 214 case 'o': 215 NoRemoveOpt = 1; 216 break; 217 case 'x': 218 UseCpFile = ".cpignore"; 219 break; 220 case 'X': 221 UseCpFile = optarg; 222 break; 223 case 'H': 224 UseHLPath = optarg; 225 break; 226 case 'F': 227 if (ssh_argc >= 16) 228 fatal("too many -F options"); 229 ssh_argv[ssh_argc++] = optarg; 230 break; 231 case 'S': 232 SlaveOpt = 1; 233 break; 234 case 'R': 235 ReadOnlyOpt = 1; 236 break; 237 case 'f': 238 ForceOpt = 1; 239 break; 240 case 'i': 241 AskConfirmation = getbool(optarg); 242 break; 243 case 'j': 244 DeviceOpt = getbool(optarg); 245 break; 246 case 's': 247 SafetyOpt = getbool(optarg); 248 break; 249 case 'q': 250 QuietOpt = 1; 251 break; 252 case 'k': 253 UseFSMIDOpt = 1; 254 FSMIDCacheFile = ".FSMID.CHECK"; 255 break; 256 case 'K': 257 UseFSMIDOpt = 1; 258 FSMIDCacheFile = optarg; 259 break; 260 case 'M': 261 UseMD5Opt = 1; 262 MD5CacheFile = optarg; 263 break; 264 case 'm': 265 UseMD5Opt = 1; 266 MD5CacheFile = ".MD5.CHECKSUMS"; 267 break; 268 case 'u': 269 setvbuf(stdout, NULL, _IOLBF, 0); 270 break; 271 case ':': 272 fatal("missing argument for option: -%c\n", optopt); 273 /* not reached */ 274 break; 275 case '?': 276 fatal("illegal option: -%c\n", optopt); 277 /* not reached */ 278 break; 279 default: 280 fatal(NULL); 281 /* not reached */ 282 break; 283 } 284 } 285 ac -= optind; 286 av += optind; 287 if (ac > 0) 288 src = av[0]; 289 if (ac > 1) 290 dst = av[1]; 291 if (ac > 2) 292 fatal("too many arguments"); 293 294 /* 295 * If we are told to go into slave mode, run the HC protocol 296 */ 297 if (SlaveOpt) { 298 DstRootPrivs = (geteuid() == 0); 299 hc_slave(0, 1); 300 exit(0); 301 } 302 303 /* 304 * Extract the source and/or/neither target [user@]host and 305 * make any required connections. 306 */ 307 if (src && (ptr = SplitRemote(src)) != NULL) { 308 SrcHost.host = src; 309 src = ptr; 310 if (UseMD5Opt) 311 fatal("The MD5 options are not currently supported for remote sources"); 312 if (hc_connect(&SrcHost, ReadOnlyOpt) < 0) 313 exit(1); 314 } else if (ReadOnlyOpt) 315 fatal("The -R option is only supported for remote sources"); 316 317 if (dst && (ptr = SplitRemote(dst)) != NULL) { 318 DstHost.host = dst; 319 dst = ptr; 320 if (UseFSMIDOpt) 321 fatal("The FSMID options are not currently supported for remote targets"); 322 if (hc_connect(&DstHost, 0) < 0) 323 exit(1); 324 } 325 326 /* 327 * dst may be NULL only if -m option is specified, 328 * which forces an update of the MD5 checksums 329 */ 330 if (dst == NULL && UseMD5Opt == 0) { 331 fatal(NULL); 332 /* not reached */ 333 } 334 335 if (dst) { 336 DstRootPrivs = (hc_geteuid(&DstHost) == 0); 337 if (!DstRootPrivs) 338 GroupCount = hc_getgroups(&DstHost, &GroupList); 339 } 340 #if 0 341 /* XXXX DEBUG */ 342 fprintf(stderr, "DstRootPrivs == %s\n", DstRootPrivs ? "true" : "false"); 343 fprintf(stderr, "GroupCount == %d\n", GroupCount); 344 for (i = 0; i < GroupCount; i++) 345 fprintf(stderr, "Group[%d] == %d\n", i, GroupList[i]); 346 #endif 347 348 bzero(&info, sizeof(info)); 349 if (dst) { 350 DstBaseLen = strlen(dst); 351 info.spath = src; 352 info.dpath = dst; 353 info.sdevNo = (dev_t)-1; 354 info.ddevNo = (dev_t)-1; 355 i = DoCopy(&info, NULL, -1); 356 } else { 357 info.spath = src; 358 info.dpath = NULL; 359 info.sdevNo = (dev_t)-1; 360 info.ddevNo = (dev_t)-1; 361 i = DoCopy(&info, NULL, -1); 362 } 363 #ifndef NOMD5 364 md5_flush(); 365 #endif 366 fsmid_flush(); 367 368 if (SummaryOpt && i == 0) { 369 double duration; 370 struct timeval end; 371 372 gettimeofday(&end, NULL); 373 #if 0 374 /* don't count stat's in our byte statistics */ 375 CountSourceBytes += sizeof(struct stat) * CountSourceItems; 376 CountSourceReadBytes += sizeof(struct stat) * CountSourceItems; 377 CountWriteBytes += sizeof(struct stat) * CountCopiedItems; 378 CountWriteBytes += sizeof(struct stat) * CountRemovedItems; 379 #endif 380 381 duration = (end.tv_sec - start.tv_sec); 382 duration += (double)(end.tv_usec - start.tv_usec) / 1000000.0; 383 if (duration == 0.0) 384 duration = 1.0; 385 logstd("cpdup completed successfully\n"); 386 logstd("%lld bytes source, %lld src bytes read, %lld tgt bytes read\n" 387 "%lld bytes written (%.1fX speedup)\n", 388 (long long)CountSourceBytes, 389 (long long)CountSourceReadBytes, 390 (long long)CountTargetReadBytes, 391 (long long)CountWriteBytes, 392 ((double)CountSourceBytes * 2.0) / ((double)(CountSourceReadBytes + CountTargetReadBytes + CountWriteBytes))); 393 logstd("%lld source items, %lld items copied, %lld items linked, " 394 "%lld things deleted\n", 395 (long long)CountSourceItems, 396 (long long)CountCopiedItems, 397 (long long)CountLinkedItems, 398 (long long)CountRemovedItems); 399 logstd("%.1f seconds %5d Kbytes/sec synced %5d Kbytes/sec scanned\n", 400 duration, 401 (int)((CountSourceReadBytes + CountTargetReadBytes + CountWriteBytes) / duration / 1024.0), 402 (int)(CountSourceBytes / duration / 1024.0)); 403 } 404 exit((i == 0) ? 0 : 1); 405 } 406 407 static int 408 getbool(const char *str) 409 { 410 if (strcmp(str, "0") == 0) 411 return (0); 412 if (strcmp(str, "1") == 0) 413 return (1); 414 fatal("option requires boolean argument (0 or 1): -%c\n", optopt); 415 /* not reached */ 416 return (0); 417 } 418 419 /* 420 * Check if path specifies a remote path, using the same syntax as scp(1), 421 * i.e. a path is considered remote if the first colon is not preceded by 422 * a slash, so e.g. "./foo:bar" is considered local. 423 * If a remote path is detected, the colon is replaced with a null byte, 424 * and the return value is a pointer to the next character. 425 * Otherwise NULL is returned. 426 */ 427 static char * 428 SplitRemote(char *path) 429 { 430 int cindex; 431 432 if (path[(cindex = strcspn(path, ":/"))] == ':') { 433 path[cindex++] = 0; 434 return (path + cindex); 435 } 436 return (NULL); 437 } 438 439 /* 440 * Check if group g is in our GroupList. 441 * 442 * Typically the number of groups a user belongs to isn't large 443 * enough to warrant more effort than a simple linear search. 444 * However, we perform an optimization by moving a group to the 445 * top of the list when we have a hit. This assumes that there 446 * isn't much variance in the gids of files that a non-root user 447 * copies. So most of the time the search will terminate on the 448 * first element of the list. 449 */ 450 static int 451 ChgrpAllowed(gid_t g) 452 { 453 int i; 454 455 for (i = 0; i < GroupCount; i++) 456 if (GroupList[i] == g) { 457 if (i > 0) { 458 /* Optimize: Move g to the front of the list. */ 459 for (; i > 0; i--) 460 GroupList[i] = GroupList[i - 1]; 461 GroupList[0] = g; 462 } 463 return (1); 464 } 465 return (0); 466 } 467 468 /* 469 * The following two functions return true if the ownership (UID + GID) 470 * or the flags of two files match, respectively. 471 * 472 * Only perform weak checking if we don't have sufficient privileges on 473 * the target machine, so we don't waste transfers with things that are 474 * bound to fail anyway. 475 */ 476 static int 477 OwnerMatch(struct stat *st1, struct stat *st2) 478 { 479 if (DstRootPrivs) 480 /* Both UID and GID must match. */ 481 return (st1->st_uid == st2->st_uid && st1->st_gid == st2->st_gid); 482 else 483 /* Ignore UID, and also ignore GID if we can't chgrp to that group. */ 484 return (st1->st_gid == st2->st_gid || !ChgrpAllowed(st1->st_gid)); 485 } 486 487 #ifdef _ST_FLAGS_PRESENT_ 488 static int 489 FlagsMatch(struct stat *st1, struct stat *st2) 490 { 491 if (DstRootPrivs) 492 return (st1->st_flags == st2->st_flags); 493 else 494 /* Only consider the user-settable flags. */ 495 return (((st1->st_flags ^ st2->st_flags) & UF_SETTABLE) == 0); 496 } 497 #endif 498 499 500 static struct hlink * 501 hltlookup(struct stat *stp) 502 { 503 struct hlink *hl; 504 int n; 505 506 n = stp->st_ino & HLMASK; 507 508 for (hl = hltable[n]; hl; hl = hl->next) { 509 if (hl->ino == stp->st_ino) { 510 ++hl->refs; 511 return hl; 512 } 513 } 514 515 return NULL; 516 } 517 518 static struct hlink * 519 hltadd(struct stat *stp, const char *path) 520 { 521 struct hlink *new; 522 int plen = strlen(path); 523 int n; 524 525 new = malloc(offsetof(struct hlink, name[plen + 1])); 526 if (new == NULL) 527 fatal("out of memory"); 528 ++HardLinkCount; 529 530 /* initialize and link the new element into the table */ 531 new->ino = stp->st_ino; 532 new->dino = (ino_t)-1; 533 new->refs = 1; 534 bcopy(path, new->name, plen + 1); 535 new->nlinked = 1; 536 new->prev = NULL; 537 n = stp->st_ino & HLMASK; 538 new->next = hltable[n]; 539 if (hltable[n]) 540 hltable[n]->prev = new; 541 hltable[n] = new; 542 543 return new; 544 } 545 546 static void 547 hltsetdino(struct hlink *hl, ino_t inum) 548 { 549 hl->dino = inum; 550 } 551 552 static void 553 hltdelete(struct hlink *hl) 554 { 555 assert(hl->refs == 1); 556 --hl->refs; 557 if (hl->prev) { 558 if (hl->next) 559 hl->next->prev = hl->prev; 560 hl->prev->next = hl->next; 561 } else { 562 if (hl->next) 563 hl->next->prev = NULL; 564 565 hltable[hl->ino & HLMASK] = hl->next; 566 } 567 --HardLinkCount; 568 free(hl); 569 } 570 571 static void 572 hltrels(struct hlink *hl) 573 { 574 assert(hl->refs == 1); 575 --hl->refs; 576 } 577 578 /* 579 * If UseHLPath is defined check to see if the file in question is 580 * the same as the source file, and if it is return a pointer to the 581 * -H path based file for hardlinking. Else return NULL. 582 */ 583 static char * 584 checkHLPath(struct stat *st1, const char *spath, const char *dpath) 585 { 586 struct stat sthl; 587 char *hpath; 588 int error; 589 590 asprintf(&hpath, "%s%s", UseHLPath, dpath + DstBaseLen); 591 592 /* 593 * stat info matches ? 594 */ 595 if (hc_stat(&DstHost, hpath, &sthl) < 0 || 596 st1->st_size != sthl.st_size || 597 st1->st_mtime != sthl.st_mtime || 598 !OwnerMatch(st1, &sthl) || 599 !FlagsMatch(st1, &sthl) 600 ) { 601 free(hpath); 602 return(NULL); 603 } 604 605 /* 606 * If ForceOpt or ValidateOpt is set we have to compare the files 607 */ 608 if (ForceOpt || ValidateOpt) { 609 error = validate_check(spath, hpath); 610 if (error) { 611 free(hpath); 612 hpath = NULL; 613 } 614 } 615 return(hpath); 616 } 617 618 /* 619 * Return 0 if the contents of the file <spath> matches the contents of 620 * the file <dpath>. 621 */ 622 static int 623 validate_check(const char *spath, const char *dpath) 624 { 625 int error; 626 int fd1; 627 int fd2; 628 629 fd1 = hc_open(&SrcHost, spath, O_RDONLY, 0); 630 fd2 = hc_open(&DstHost, dpath, O_RDONLY, 0); 631 error = -1; 632 633 if (fd1 >= 0 && fd2 >= 0) { 634 int n; 635 int x; 636 char *iobuf1 = malloc(GETIOSIZE); 637 char *iobuf2 = malloc(GETIOSIZE); 638 639 while ((n = hc_read(&SrcHost, fd1, iobuf1, GETIOSIZE)) > 0) { 640 CountSourceReadBytes += n; 641 x = hc_read(&DstHost, fd2, iobuf2, GETIOSIZE); 642 if (x > 0) 643 CountTargetReadBytes += x; 644 if (x != n) 645 break; 646 if (bcmp(iobuf1, iobuf2, n) != 0) 647 break; 648 } 649 free(iobuf1); 650 free(iobuf2); 651 if (n == 0) 652 error = 0; 653 } 654 if (fd1 >= 0) 655 hc_close(&SrcHost, fd1); 656 if (fd2 >= 0) 657 hc_close(&DstHost, fd2); 658 return (error); 659 } 660 661 int 662 DoCopy(copy_info_t info, struct stat *stat1, int depth) 663 { 664 const char *spath = info->spath; 665 const char *dpath = info->dpath; 666 dev_t sdevNo = info->sdevNo; 667 dev_t ddevNo = info->ddevNo; 668 struct stat st1; 669 struct stat st2; 670 unsigned long st2_flags; 671 int r, mres, fres, st2Valid; 672 struct hlink *hln; 673 uint64_t size; 674 675 r = mres = fres = st2Valid = 0; 676 st2_flags = 0; 677 size = 0; 678 hln = NULL; 679 680 if (stat1 == NULL) { 681 if (hc_lstat(&SrcHost, spath, &st1) != 0) { 682 r = 1; 683 goto done; 684 } 685 stat1 = &st1; 686 } 687 #ifdef SF_SNAPSHOT 688 /* skip snapshot files because they're sparse and _huge_ */ 689 if (stat1->st_flags & SF_SNAPSHOT) 690 return(0); 691 #endif 692 st2.st_mode = 0; /* in case lstat fails */ 693 st2.st_flags = 0; /* in case lstat fails */ 694 if (dpath && hc_lstat(&DstHost, dpath, &st2) == 0) { 695 st2Valid = 1; 696 #ifdef _ST_FLAGS_PRESENT_ 697 st2_flags = st2.st_flags; 698 #endif 699 } 700 701 if (S_ISREG(stat1->st_mode)) 702 size = stat1->st_size; 703 704 /* 705 * Handle hardlinks 706 */ 707 708 if (S_ISREG(stat1->st_mode) && stat1->st_nlink > 1 && dpath) { 709 if ((hln = hltlookup(stat1)) != NULL) { 710 hln->nlinked++; 711 712 if (st2Valid) { 713 if (st2.st_ino == hln->dino) { 714 /* 715 * hard link is already correct, nothing to do 716 */ 717 if (VerboseOpt >= 3) 718 logstd("%-32s nochange\n", (dpath) ? dpath : spath); 719 if (hln->nlinked == stat1->st_nlink) { 720 hltdelete(hln); 721 hln = NULL; 722 } 723 CountSourceItems++; 724 r = 0; 725 goto done; 726 } else { 727 /* 728 * hard link is not correct, attempt to unlink it 729 */ 730 if (xremove(&DstHost, dpath) < 0) { 731 logerr("%-32s hardlink: unable to unlink: %s\n", 732 ((dpath) ? dpath : spath), strerror(errno)); 733 hltdelete(hln); 734 hln = NULL; 735 ++r; 736 goto done; 737 } 738 } 739 } 740 741 if (xlink(hln->name, dpath, stat1->st_flags) < 0) { 742 int tryrelink = (errno == EMLINK); 743 logerr("%-32s hardlink: unable to link to %s: %s\n", 744 (dpath ? dpath : spath), hln->name, strerror(errno) 745 ); 746 hltdelete(hln); 747 hln = NULL; 748 if (tryrelink) { 749 logerr("%-20s hardlink: will attempt to copy normally\n"); 750 goto relink; 751 } 752 ++r; 753 } else { 754 if (hln->nlinked == stat1->st_nlink) { 755 hltdelete(hln); 756 hln = NULL; 757 } 758 if (r == 0) { 759 if (VerboseOpt) { 760 logstd("%-32s hardlink: %s\n", 761 (dpath ? dpath : spath), 762 (st2Valid ? "relinked" : "linked") 763 ); 764 } 765 CountSourceItems++; 766 CountCopiedItems++; 767 r = 0; 768 goto done; 769 } 770 } 771 } else { 772 /* 773 * first instance of hardlink must be copied normally 774 */ 775 relink: 776 hln = hltadd(stat1, dpath); 777 } 778 } 779 780 /* 781 * Do we need to copy the file/dir/link/whatever? Early termination 782 * if we do not. Always redo links. Directories are always traversed 783 * except when the FSMID options are used. 784 * 785 * NOTE: st2Valid is true only if dpath != NULL *and* dpath stats good. 786 */ 787 788 if ( 789 st2Valid 790 && stat1->st_mode == st2.st_mode 791 && FlagsMatch(stat1, &st2) 792 ) { 793 if (S_ISLNK(stat1->st_mode) || S_ISDIR(stat1->st_mode)) { 794 /* 795 * If FSMID tracking is turned on we can avoid recursing through 796 * an entire directory subtree if the FSMID matches. 797 */ 798 #ifdef _ST_FSMID_PRESENT_ 799 if (ForceOpt == 0 && 800 (UseFSMIDOpt && (fres = fsmid_check(stat1->st_fsmid, dpath)) == 0) 801 ) { 802 if (VerboseOpt >= 3) { 803 if (UseFSMIDOpt) /* always true!?! */ 804 logstd("%-32s fsmid-nochange\n", (dpath ? dpath : spath)); 805 else 806 logstd("%-32s nochange\n", (dpath ? dpath : spath)); 807 } 808 r = 0; 809 goto done; 810 } 811 #endif 812 } else { 813 if (ForceOpt == 0 && 814 stat1->st_size == st2.st_size && 815 (ValidateOpt == 2 || stat1->st_mtime == st2.st_mtime) && 816 OwnerMatch(stat1, &st2) 817 #ifndef NOMD5 818 && (UseMD5Opt == 0 || !S_ISREG(stat1->st_mode) || 819 (mres = md5_check(spath, dpath)) == 0) 820 #endif 821 #ifdef _ST_FSMID_PRESENT_ 822 && (UseFSMIDOpt == 0 || 823 (fres = fsmid_check(stat1->st_fsmid, dpath)) == 0) 824 #endif 825 && (ValidateOpt == 0 || !S_ISREG(stat1->st_mode) || 826 validate_check(spath, dpath) == 0) 827 ) { 828 /* 829 * The files are identical, but if we are running as 830 * root we might need to adjust ownership/group/flags. 831 */ 832 int changedown = 0; 833 int changedflags = 0; 834 835 if (hln) 836 hltsetdino(hln, st2.st_ino); 837 838 if (!OwnerMatch(stat1, &st2)) { 839 hc_chown(&DstHost, dpath, stat1->st_uid, stat1->st_gid); 840 changedown = 1; 841 } 842 #ifdef _ST_FLAGS_PRESENT_ 843 if (!FlagsMatch(stat1, &st2)) { 844 hc_chflags(&DstHost, dpath, stat1->st_flags); 845 changedflags = 1; 846 } 847 #endif 848 if (VerboseOpt >= 3) { 849 #ifndef NOMD5 850 if (UseMD5Opt) { 851 logstd("%-32s md5-nochange", 852 (dpath ? dpath : spath)); 853 } else 854 #endif 855 if (UseFSMIDOpt) { 856 logstd("%-32s fsmid-nochange", 857 (dpath ? dpath : spath)); 858 } else if (ValidateOpt) { 859 logstd("%-32s nochange (contents validated)", 860 (dpath ? dpath : spath)); 861 } else { 862 logstd("%-32s nochange", (dpath ? dpath : spath)); 863 } 864 if (changedown) 865 logstd(" (uid/gid differ)"); 866 if (changedflags) 867 logstd(" (flags differ)"); 868 logstd("\n"); 869 } 870 CountSourceBytes += size; 871 CountSourceItems++; 872 r = 0; 873 goto done; 874 } 875 } 876 } 877 if (st2Valid && !S_ISDIR(stat1->st_mode) && S_ISDIR(st2.st_mode)) { 878 if (SafetyOpt) { 879 logerr("%-32s SAFETY - refusing to copy file over directory\n", 880 (dpath ? dpath : spath) 881 ); 882 ++r; /* XXX */ 883 r = 0; 884 goto done; /* continue with the cpdup anyway */ 885 } 886 if (QuietOpt == 0 || AskConfirmation) { 887 logstd("%-32s WARNING: non-directory source will blow away\n" 888 "%-32s preexisting dest directory, continuing anyway!\n", 889 ((dpath) ? dpath : spath), ""); 890 } 891 if (dpath) 892 RemoveRecur(dpath, ddevNo, &st2); 893 st2Valid = 0; 894 } 895 896 /* 897 * The various comparisons failed, copy it. 898 */ 899 if (S_ISDIR(stat1->st_mode)) { 900 int skipdir = 0; 901 902 if (fres < 0) 903 logerr("%-32s/ fsmid-CHECK-FAILED\n", (dpath) ? dpath : spath); 904 905 if (dpath) { 906 if (!st2Valid || S_ISDIR(st2.st_mode) == 0) { 907 if (st2Valid) 908 xremove(&DstHost, dpath); 909 if (hc_mkdir(&DstHost, dpath, stat1->st_mode | 0700) != 0) { 910 logerr("%s: mkdir failed: %s\n", 911 (dpath ? dpath : spath), strerror(errno)); 912 r = 1; 913 skipdir = 1; 914 } 915 if (hc_lstat(&DstHost, dpath, &st2) != 0) { 916 logerr("%s: lstat of newly made dir failed: %s\n", 917 (dpath ? dpath : spath), strerror(errno)); 918 st2Valid = 0; 919 r = 1; 920 skipdir = 1; 921 } 922 else { 923 st2Valid = 1; 924 if (!OwnerMatch(stat1, &st2) && 925 hc_chown(&DstHost, dpath, stat1->st_uid, stat1->st_gid) != 0 926 ) { 927 logerr("%s: chown of newly made dir failed: %s\n", 928 (dpath ? dpath : spath), strerror(errno)); 929 r = 1; 930 /* Note that we should not set skipdir = 1 here. */ 931 } 932 } 933 CountCopiedItems++; 934 } else { 935 /* 936 * Directory must be scanable by root for cpdup to 937 * work. We'll fix it later if the directory isn't 938 * supposed to be readable ( which is why we fixup 939 * st2.st_mode to match what we did ). 940 */ 941 if ((st2.st_mode & 0700) != 0700) { 942 hc_chmod(&DstHost, dpath, st2.st_mode | 0700); 943 st2.st_mode |= 0700; 944 } 945 if (VerboseOpt >= 2) 946 logstd("%s\n", dpath ? dpath : spath); 947 } 948 } 949 950 /* 951 * When copying a directory, stop if the source crosses a mount 952 * point. 953 */ 954 if (sdevNo != (dev_t)-1 && stat1->st_dev != sdevNo) 955 skipdir = 1; 956 else 957 sdevNo = stat1->st_dev; 958 959 /* 960 * When copying a directory, stop if the destination crosses 961 * a mount point. 962 * 963 * The target directory will have been created and stat'd 964 * for st2 if it did not previously exist. st2Valid is left 965 * as a flag. If the stat failed st2 will still only have its 966 * default initialization. 967 * 968 * So we simply assume here that the directory is within the 969 * current target mount if we had to create it (aka st2Valid is 0) 970 * and we leave ddevNo alone. 971 */ 972 if (st2Valid) { 973 if (ddevNo != (dev_t)-1 && st2.st_dev != ddevNo) 974 skipdir = 1; 975 else 976 ddevNo = st2.st_dev; 977 } 978 979 if (!skipdir) { 980 List *list = malloc(sizeof(List)); 981 Node *node; 982 983 if (DirShowOpt) 984 logstd("Scanning %s ...\n", spath); 985 InitList(list); 986 if (ScanDir(list, &SrcHost, spath, &CountSourceReadBytes, 0) == 0) { 987 node = NULL; 988 while ((node = IterateList(list, node, 0)) != NULL) { 989 char *nspath; 990 char *ndpath = NULL; 991 992 nspath = mprintf("%s/%s", spath, node->no_Name); 993 if (dpath) 994 ndpath = mprintf("%s/%s", dpath, node->no_Name); 995 996 info->spath = nspath; 997 info->dpath = ndpath; 998 info->sdevNo = sdevNo; 999 info->ddevNo = ddevNo; 1000 if (depth < 0) 1001 r += DoCopy(info, node->no_Stat, depth); 1002 else 1003 r += DoCopy(info, node->no_Stat, depth + 1); 1004 free(nspath); 1005 if (ndpath) 1006 free(ndpath); 1007 info->spath = NULL; 1008 info->dpath = NULL; 1009 } 1010 1011 /* 1012 * Remove files/directories from destination that do not appear 1013 * in the source. 1014 */ 1015 if (dpath && ScanDir(list, &DstHost, dpath, 1016 &CountTargetReadBytes, 3) == 0) { 1017 node = NULL; 1018 while ((node = IterateList(list, node, 3)) != NULL) { 1019 /* 1020 * If object does not exist in source or .cpignore 1021 * then recursively remove it. 1022 */ 1023 char *ndpath; 1024 1025 ndpath = mprintf("%s/%s", dpath, node->no_Name); 1026 RemoveRecur(ndpath, ddevNo, node->no_Stat); 1027 free(ndpath); 1028 } 1029 } 1030 } 1031 ResetList(list); 1032 free(list); 1033 } 1034 1035 if (dpath && st2Valid) { 1036 struct timeval tv[2]; 1037 1038 if (ForceOpt || !OwnerMatch(stat1, &st2)) 1039 hc_chown(&DstHost, dpath, stat1->st_uid, stat1->st_gid); 1040 if (stat1->st_mode != st2.st_mode) 1041 hc_chmod(&DstHost, dpath, stat1->st_mode); 1042 #ifdef _ST_FLAGS_PRESENT_ 1043 if (!FlagsMatch(stat1, &st2)) 1044 hc_chflags(&DstHost, dpath, stat1->st_flags); 1045 #endif 1046 if (ForceOpt || stat1->st_mtime != st2.st_mtime) { 1047 bzero(tv, sizeof(tv)); 1048 tv[0].tv_sec = stat1->st_mtime; 1049 tv[1].tv_sec = stat1->st_mtime; 1050 hc_utimes(&DstHost, dpath, tv); 1051 } 1052 } 1053 } else if (dpath == NULL) { 1054 /* 1055 * If dpath is NULL, we are just updating the MD5 1056 */ 1057 #ifndef NOMD5 1058 if (UseMD5Opt && S_ISREG(stat1->st_mode)) { 1059 mres = md5_check(spath, NULL); 1060 1061 if (VerboseOpt > 1) { 1062 if (mres < 0) 1063 logstd("%-32s md5-update\n", (dpath) ? dpath : spath); 1064 else 1065 logstd("%-32s md5-ok\n", (dpath) ? dpath : spath); 1066 } else if (!QuietOpt && mres < 0) { 1067 logstd("%-32s md5-update\n", (dpath) ? dpath : spath); 1068 } 1069 } 1070 #endif 1071 } else if (S_ISREG(stat1->st_mode)) { 1072 char *path; 1073 char *hpath; 1074 int fd1; 1075 int fd2; 1076 1077 if (st2Valid) 1078 path = mprintf("%s.tmp%d", dpath, (int)getpid()); 1079 else 1080 path = mprintf("%s", dpath); 1081 1082 /* 1083 * Handle check failure message. 1084 */ 1085 #ifndef NOMD5 1086 if (mres < 0) 1087 logerr("%-32s md5-CHECK-FAILED\n", (dpath) ? dpath : spath); 1088 else 1089 #endif 1090 if (fres < 0) 1091 logerr("%-32s fsmid-CHECK-FAILED\n", (dpath) ? dpath : spath); 1092 1093 /* 1094 * Not quite ready to do the copy yet. If UseHLPath is defined, 1095 * see if we can hardlink instead. 1096 * 1097 * If we can hardlink, and the target exists, we have to remove it 1098 * first or the hardlink will fail. This can occur in a number of 1099 * situations but most typically when the '-f -H' combination is 1100 * used. 1101 */ 1102 if (UseHLPath && (hpath = checkHLPath(stat1, spath, dpath)) != NULL) { 1103 if (st2Valid) 1104 xremove(&DstHost, dpath); 1105 if (hc_link(&DstHost, hpath, dpath) == 0) { 1106 ++CountLinkedItems; 1107 if (VerboseOpt) { 1108 logstd("%-32s hardlinked(-H)\n", 1109 (dpath ? dpath : spath)); 1110 } 1111 free(hpath); 1112 goto skip_copy; 1113 } 1114 /* 1115 * Shucks, we may have hit a filesystem hard linking limit, 1116 * we have to copy instead. 1117 */ 1118 free(hpath); 1119 } 1120 1121 if ((fd1 = hc_open(&SrcHost, spath, O_RDONLY, 0)) >= 0) { 1122 if ((fd2 = hc_open(&DstHost, path, O_WRONLY|O_CREAT|O_EXCL, 0600)) < 0) { 1123 /* 1124 * There could be a .tmp file from a previously interrupted 1125 * run, delete and retry. Fail if we still can't get at it. 1126 */ 1127 #ifdef _ST_FLAGS_PRESENT_ 1128 hc_chflags(&DstHost, path, 0); 1129 #endif 1130 hc_remove(&DstHost, path); 1131 fd2 = hc_open(&DstHost, path, O_WRONLY|O_CREAT|O_EXCL|O_TRUNC, 0600); 1132 } 1133 if (fd2 >= 0) { 1134 const char *op; 1135 char *iobuf1 = malloc(GETIOSIZE); 1136 int n; 1137 1138 /* 1139 * Matt: What about holes? 1140 */ 1141 op = "read"; 1142 while ((n = hc_read(&SrcHost, fd1, iobuf1, GETIOSIZE)) > 0) { 1143 op = "write"; 1144 if (hc_write(&DstHost, fd2, iobuf1, n) != n) 1145 break; 1146 op = "read"; 1147 } 1148 hc_close(&DstHost, fd2); 1149 if (n == 0) { 1150 struct timeval tv[2]; 1151 1152 bzero(tv, sizeof(tv)); 1153 tv[0].tv_sec = stat1->st_mtime; 1154 tv[1].tv_sec = stat1->st_mtime; 1155 1156 if (DstRootPrivs || ChgrpAllowed(stat1->st_gid)) 1157 hc_chown(&DstHost, path, stat1->st_uid, stat1->st_gid); 1158 hc_chmod(&DstHost, path, stat1->st_mode); 1159 #ifdef _ST_FLAGS_PRESENT_ 1160 if (stat1->st_flags & (UF_IMMUTABLE|SF_IMMUTABLE)) 1161 hc_utimes(&DstHost, path, tv); 1162 #else 1163 hc_utimes(&DstHost, path, tv); 1164 #endif 1165 if (st2Valid && xrename(path, dpath, st2_flags) != 0) { 1166 logerr("%-32s rename-after-copy failed: %s\n", 1167 (dpath ? dpath : spath), strerror(errno) 1168 ); 1169 ++r; 1170 } else { 1171 if (VerboseOpt) 1172 logstd("%-32s copy-ok\n", (dpath ? dpath : spath)); 1173 #ifdef _ST_FLAGS_PRESENT_ 1174 if (DstRootPrivs ? stat1->st_flags : stat1->st_flags & UF_SETTABLE) 1175 hc_chflags(&DstHost, dpath, stat1->st_flags); 1176 #endif 1177 } 1178 #ifdef _ST_FLAGS_PRESENT_ 1179 if ((stat1->st_flags & (UF_IMMUTABLE|SF_IMMUTABLE)) == 0) 1180 hc_utimes(&DstHost, dpath, tv); 1181 #endif 1182 CountSourceReadBytes += size; 1183 CountWriteBytes += size; 1184 CountSourceBytes += size; 1185 CountSourceItems++; 1186 CountCopiedItems++; 1187 } else { 1188 logerr("%-32s %s failed: %s\n", 1189 (dpath ? dpath : spath), op, strerror(errno) 1190 ); 1191 hc_remove(&DstHost, path); 1192 ++r; 1193 } 1194 free(iobuf1); 1195 } else { 1196 logerr("%-32s create (uid %d, euid %d) failed: %s\n", 1197 (dpath ? dpath : spath), getuid(), geteuid(), 1198 strerror(errno) 1199 ); 1200 ++r; 1201 } 1202 hc_close(&SrcHost, fd1); 1203 } else { 1204 logerr("%-32s copy: open failed: %s\n", 1205 (dpath ? dpath : spath), 1206 strerror(errno) 1207 ); 1208 ++r; 1209 } 1210 skip_copy: 1211 free(path); 1212 1213 if (hln) { 1214 if (!r && hc_stat(&DstHost, dpath, &st2) == 0) { 1215 hltsetdino(hln, st2.st_ino); 1216 } else { 1217 hltdelete(hln); 1218 hln = NULL; 1219 } 1220 } 1221 } else if (S_ISLNK(stat1->st_mode)) { 1222 char *link1 = malloc(GETLINKSIZE); 1223 char *link2 = malloc(GETLINKSIZE); 1224 char *path; 1225 int n1; 1226 int n2; 1227 1228 n1 = hc_readlink(&SrcHost, spath, link1, GETLINKSIZE - 1); 1229 if (st2Valid) { 1230 path = mprintf("%s.tmp%d", dpath, (int)getpid()); 1231 n2 = hc_readlink(&DstHost, dpath, link2, GETLINKSIZE - 1); 1232 } else { 1233 path = mprintf("%s", dpath); 1234 n2 = -1; 1235 } 1236 if (n1 >= 0) { 1237 if (ForceOpt || n1 != n2 || bcmp(link1, link2, n1) != 0) { 1238 hc_umask(&DstHost, ~stat1->st_mode); 1239 xremove(&DstHost, path); 1240 link1[n1] = 0; 1241 if (hc_symlink(&DstHost, link1, path) < 0) { 1242 logerr("%-32s symlink (%s->%s) failed: %s\n", 1243 (dpath ? dpath : spath), link1, path, 1244 strerror(errno) 1245 ); 1246 ++r; 1247 } else { 1248 if (DstRootPrivs || ChgrpAllowed(stat1->st_gid)) 1249 hc_lchown(&DstHost, path, stat1->st_uid, stat1->st_gid); 1250 /* 1251 * there is no lchmod() or lchflags(), we 1252 * cannot chmod or chflags a softlink. 1253 */ 1254 if (st2Valid && xrename(path, dpath, st2_flags) != 0) { 1255 logerr("%-32s rename softlink (%s->%s) failed: %s\n", 1256 (dpath ? dpath : spath), 1257 path, dpath, strerror(errno)); 1258 } else if (VerboseOpt) { 1259 logstd("%-32s softlink-ok\n", (dpath ? dpath : spath)); 1260 } 1261 hc_umask(&DstHost, 000); 1262 CountWriteBytes += n1; 1263 CountCopiedItems++; 1264 } 1265 } else { 1266 if (VerboseOpt >= 3) 1267 logstd("%-32s nochange", (dpath ? dpath : spath)); 1268 if (!OwnerMatch(stat1, &st2)) { 1269 hc_lchown(&DstHost, dpath, stat1->st_uid, stat1->st_gid); 1270 if (VerboseOpt >= 3) 1271 logstd(" (uid/gid differ)"); 1272 } 1273 if (VerboseOpt >= 3) 1274 logstd("\n"); 1275 } 1276 CountSourceBytes += n1; 1277 CountSourceReadBytes += n1; 1278 if (n2 > 0) 1279 CountTargetReadBytes += n2; 1280 CountSourceItems++; 1281 } else { 1282 r = 1; 1283 logerr("%-32s softlink-failed\n", (dpath ? dpath : spath)); 1284 } 1285 free(link1); 1286 free(link2); 1287 free(path); 1288 } else if ((S_ISCHR(stat1->st_mode) || S_ISBLK(stat1->st_mode)) && DeviceOpt) { 1289 char *path = NULL; 1290 1291 if (ForceOpt || 1292 st2Valid == 0 || 1293 stat1->st_mode != st2.st_mode || 1294 stat1->st_rdev != st2.st_rdev || 1295 !OwnerMatch(stat1, &st2) 1296 ) { 1297 if (st2Valid) { 1298 path = mprintf("%s.tmp%d", dpath, (int)getpid()); 1299 xremove(&DstHost, path); 1300 } else { 1301 path = mprintf("%s", dpath); 1302 } 1303 1304 if (hc_mknod(&DstHost, path, stat1->st_mode, stat1->st_rdev) == 0) { 1305 hc_chmod(&DstHost, path, stat1->st_mode); 1306 hc_chown(&DstHost, path, stat1->st_uid, stat1->st_gid); 1307 if (st2Valid) 1308 xremove(&DstHost, dpath); 1309 if (st2Valid && xrename(path, dpath, st2_flags) != 0) { 1310 logerr("%-32s dev-rename-after-create failed: %s\n", 1311 (dpath ? dpath : spath), 1312 strerror(errno) 1313 ); 1314 } else if (VerboseOpt) { 1315 logstd("%-32s dev-ok\n", (dpath ? dpath : spath)); 1316 } 1317 CountCopiedItems++; 1318 } else { 1319 r = 1; 1320 logerr("%-32s dev failed: %s\n", 1321 (dpath ? dpath : spath), strerror(errno) 1322 ); 1323 } 1324 } else { 1325 if (VerboseOpt >= 3) 1326 logstd("%-32s nochange\n", (dpath ? dpath : spath)); 1327 } 1328 if (path) 1329 free(path); 1330 CountSourceItems++; 1331 } 1332 done: 1333 if (hln) { 1334 if (hln->dino == (ino_t)-1) { 1335 hltdelete(hln); 1336 /*hln = NULL; unneeded */ 1337 } else { 1338 hltrels(hln); 1339 } 1340 } 1341 return (r); 1342 } 1343 1344 int 1345 ScanDir(List *list, struct HostConf *host, const char *path, 1346 int64_t *CountReadBytes, int n) 1347 { 1348 DIR *dir; 1349 struct HCDirEntry *den; 1350 struct stat *statptr; 1351 1352 if (n == 0) { 1353 /* 1354 * scan .cpignore file for files/directories to ignore 1355 * (only in the source directory, i.e. if n == 0). 1356 */ 1357 if (UseCpFile) { 1358 int fd; 1359 int nread; 1360 int bufused; 1361 char *buf = malloc(GETBUFSIZE); 1362 char *nl, *next; 1363 char *fpath; 1364 1365 if (UseCpFile[0] == '/') { 1366 fpath = mprintf("%s", UseCpFile); 1367 } else { 1368 fpath = mprintf("%s/%s", path, UseCpFile); 1369 } 1370 AddList(list, strrchr(fpath, '/') + 1, 1, NULL); 1371 if ((fd = hc_open(host, fpath, O_RDONLY, 0)) >= 0) { 1372 bufused = 0; 1373 while ((nread = hc_read(host, fd, buf + bufused, 1374 GETBUFSIZE - bufused - 1)) > 0) { 1375 *CountReadBytes += nread; 1376 bufused += nread; 1377 buf[bufused] = 0; 1378 for (next = buf; (nl = strchr(next, '\n')); next = nl+1) { 1379 *nl = 0; 1380 AddList(list, next, 1, NULL); 1381 } 1382 bufused = strlen(next); 1383 if (bufused) 1384 bcopy(next, buf, bufused); 1385 } 1386 if (bufused) { 1387 /* last line has no trailing newline */ 1388 buf[bufused] = 0; 1389 AddList(list, buf, 1, NULL); 1390 } 1391 hc_close(host, fd); 1392 } 1393 free(fpath); 1394 free(buf); 1395 } 1396 1397 /* 1398 * Automatically exclude MD5CacheFile that we create on the 1399 * source from the copy to the destination. 1400 * 1401 * Automatically exclude a FSMIDCacheFile on the source that 1402 * would otherwise overwrite the one we maintain on the target. 1403 */ 1404 if (UseMD5Opt) 1405 AddList(list, MD5CacheFile, 1, NULL); 1406 if (UseFSMIDOpt) 1407 AddList(list, FSMIDCacheFile, 1, NULL); 1408 } 1409 1410 if ((dir = hc_opendir(host, path)) == NULL) 1411 return (1); 1412 while ((den = hc_readdir(host, dir, &statptr)) != NULL) { 1413 /* 1414 * ignore . and .. 1415 */ 1416 if (strcmp(den->d_name, ".") != 0 && strcmp(den->d_name, "..") != 0) 1417 AddList(list, den->d_name, n, statptr); 1418 } 1419 hc_closedir(host, dir); 1420 1421 return (0); 1422 } 1423 1424 /* 1425 * RemoveRecur() 1426 */ 1427 1428 void 1429 RemoveRecur(const char *dpath, dev_t devNo, struct stat *dstat) 1430 { 1431 struct stat st; 1432 1433 if (dstat == NULL) { 1434 if (hc_lstat(&DstHost, dpath, &st) == 0) 1435 dstat = &st; 1436 } 1437 if (dstat != NULL) { 1438 if (devNo == (dev_t)-1) 1439 devNo = dstat->st_dev; 1440 if (dstat->st_dev == devNo) { 1441 if (S_ISDIR(dstat->st_mode)) { 1442 DIR *dir; 1443 1444 if ((dir = hc_opendir(&DstHost, dpath)) != NULL) { 1445 List *list = malloc(sizeof(List)); 1446 Node *node = NULL; 1447 struct HCDirEntry *den; 1448 1449 InitList(list); 1450 while ((den = hc_readdir(&DstHost, dir, &dstat)) != NULL) { 1451 if (strcmp(den->d_name, ".") == 0) 1452 continue; 1453 if (strcmp(den->d_name, "..") == 0) 1454 continue; 1455 AddList(list, den->d_name, 3, dstat); 1456 } 1457 hc_closedir(&DstHost, dir); 1458 while ((node = IterateList(list, node, 3)) != NULL) { 1459 char *ndpath; 1460 1461 ndpath = mprintf("%s/%s", dpath, node->no_Name); 1462 RemoveRecur(ndpath, devNo, node->no_Stat); 1463 free(ndpath); 1464 } 1465 ResetList(list); 1466 free(list); 1467 } 1468 if (AskConfirmation && NoRemoveOpt == 0) { 1469 if (YesNo(dpath)) { 1470 if (hc_rmdir(&DstHost, dpath) < 0) { 1471 logerr("%-32s rmdir failed: %s\n", 1472 dpath, strerror(errno) 1473 ); 1474 } 1475 CountRemovedItems++; 1476 } 1477 } else { 1478 if (NoRemoveOpt) { 1479 if (VerboseOpt) 1480 logstd("%-32s not-removed\n", dpath); 1481 } else if (hc_rmdir(&DstHost, dpath) == 0) { 1482 if (VerboseOpt) 1483 logstd("%-32s rmdir-ok\n", dpath); 1484 CountRemovedItems++; 1485 } else { 1486 logerr("%-32s rmdir failed: %s\n", 1487 dpath, strerror(errno) 1488 ); 1489 } 1490 } 1491 } else { 1492 if (AskConfirmation && NoRemoveOpt == 0) { 1493 if (YesNo(dpath)) { 1494 if (xremove(&DstHost, dpath) < 0) { 1495 logerr("%-32s remove failed: %s\n", 1496 dpath, strerror(errno) 1497 ); 1498 } 1499 CountRemovedItems++; 1500 } 1501 } else { 1502 if (NoRemoveOpt) { 1503 if (VerboseOpt) 1504 logstd("%-32s not-removed\n", dpath); 1505 } else if (xremove(&DstHost, dpath) == 0) { 1506 if (VerboseOpt) 1507 logstd("%-32s remove-ok\n", dpath); 1508 CountRemovedItems++; 1509 } else { 1510 logerr("%-32s remove failed: %s\n", 1511 dpath, strerror(errno) 1512 ); 1513 } 1514 } 1515 } 1516 } 1517 } 1518 } 1519 1520 void 1521 InitList(List *list) 1522 { 1523 bzero(list, sizeof(List)); 1524 list->li_Node.no_Next = &list->li_Node; 1525 } 1526 1527 void 1528 ResetList(List *list) 1529 { 1530 Node *node; 1531 1532 while ((node = list->li_Node.no_Next) != &list->li_Node) { 1533 list->li_Node.no_Next = node->no_Next; 1534 if (node->no_Stat != NULL) 1535 free(node->no_Stat); 1536 free(node); 1537 } 1538 InitList(list); 1539 } 1540 1541 Node * 1542 IterateList(List *list, Node *node, int n) 1543 { 1544 if (node == NULL) 1545 node = list->li_Node.no_Next; 1546 else 1547 node = node->no_Next; 1548 while (node->no_Value != n && node != &list->li_Node) 1549 node = node->no_Next; 1550 return (node == &list->li_Node ? NULL : node); 1551 } 1552 1553 int 1554 AddList(List *list, const char *name, int n, struct stat *st) 1555 { 1556 Node *node; 1557 int hv; 1558 1559 /* 1560 * Scan against wildcards. Only a node value of 1 can be a wildcard 1561 * ( usually scanned from .cpignore ) 1562 */ 1563 1564 for (node = list->li_Hash[0]; node; node = node->no_HNext) { 1565 if (strcmp(name, node->no_Name) == 0 || 1566 (n != 1 && node->no_Value == 1 && 1567 fnmatch(node->no_Name, name, 0) == 0) 1568 ) { 1569 return(node->no_Value); 1570 } 1571 } 1572 1573 /* 1574 * Look for exact match 1575 */ 1576 1577 hv = shash(name); 1578 for (node = list->li_Hash[hv]; node; node = node->no_HNext) { 1579 if (strcmp(name, node->no_Name) == 0) { 1580 return(node->no_Value); 1581 } 1582 } 1583 node = malloc(sizeof(Node) + strlen(name) + 1); 1584 if (node == NULL) 1585 fatal("out of memory"); 1586 1587 node->no_Next = list->li_Node.no_Next; 1588 list->li_Node.no_Next = node; 1589 1590 node->no_HNext = list->li_Hash[hv]; 1591 list->li_Hash[hv] = node; 1592 1593 strcpy(node->no_Name, name); 1594 node->no_Value = n; 1595 node->no_Stat = st; 1596 1597 return(n); 1598 } 1599 1600 static int 1601 shash(const char *s) 1602 { 1603 int hv; 1604 1605 hv = 0xA4FB3255; 1606 1607 while (*s) { 1608 if (*s == '*' || *s == '?' || 1609 *s == '{' || *s == '}' || 1610 *s == '[' || *s == ']' || 1611 *s == '|' 1612 ) { 1613 return(0); 1614 } 1615 hv = (hv << 5) ^ *s ^ (hv >> 23); 1616 ++s; 1617 } 1618 return(((hv >> 16) ^ hv) & HMASK); 1619 } 1620 1621 int 1622 YesNo(const char *path) 1623 { 1624 int ch, first; 1625 1626 fprintf(stderr, "remove %s (Yes/No) [No]? ", path); 1627 fflush(stderr); 1628 1629 first = ch = getchar(); 1630 while (ch != '\n' && ch != EOF) 1631 ch = getchar(); 1632 return ((first == 'y' || first == 'Y')); 1633 } 1634 1635 /* 1636 * xrename() - rename with override 1637 * 1638 * If the rename fails, attempt to override st_flags on the 1639 * destination and rename again. If that fails too, try to 1640 * set the flags back the way they were and give up. 1641 */ 1642 1643 static int 1644 xrename(const char *src, const char *dst, u_long flags) 1645 { 1646 int r; 1647 1648 if ((r = hc_rename(&DstHost, src, dst)) < 0) { 1649 #ifdef _ST_FLAGS_PRESENT_ 1650 hc_chflags(&DstHost, dst, 0); 1651 if ((r = hc_rename(&DstHost, src, dst)) < 0) 1652 hc_chflags(&DstHost, dst, flags); 1653 #endif 1654 } 1655 return(r); 1656 } 1657 1658 static int 1659 xlink(const char *src, const char *dst, u_long flags) 1660 { 1661 int r; 1662 #ifdef _ST_FLAGS_PRESENT_ 1663 int e; 1664 #endif 1665 1666 if ((r = hc_link(&DstHost, src, dst)) < 0) { 1667 #ifdef _ST_FLAGS_PRESENT_ 1668 hc_chflags(&DstHost, src, 0); 1669 r = hc_link(&DstHost, src, dst); 1670 e = errno; 1671 hc_chflags(&DstHost, src, flags); 1672 errno = e; 1673 #endif 1674 } 1675 if (r == 0) 1676 ++CountLinkedItems; 1677 return(r); 1678 } 1679 1680 static int 1681 xremove(struct HostConf *host, const char *path) 1682 { 1683 int res; 1684 1685 res = hc_remove(host, path); 1686 #ifdef _ST_FLAGS_PRESENT_ 1687 if (res == -EPERM) { 1688 hc_chflags(host, path, 0); 1689 res = hc_remove(host, path); 1690 } 1691 #endif 1692 return(res); 1693 } 1694 1695