1 /* 2 * Copyright (c) 2008 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Matthew Dillon <dillon@backplane.com> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $DragonFly: src/sbin/hammer/cmd_pseudofs.c,v 1.12 2008/10/08 21:01:54 thomas Exp $ 35 */ 36 37 #include <libgen.h> 38 39 #include "hammer.h" 40 41 static int scanpfsid(struct hammer_ioc_pseudofs_rw *pfs, const char *path); 42 static void parse_pfsd_options(char **av, int ac, hammer_pseudofs_data_t pfsd); 43 static void init_pfsd(hammer_pseudofs_data_t pfsd, int is_slave); 44 static void pseudofs_usage(int code); 45 static int timetosecs(char *str); 46 47 void 48 clrpfs(struct hammer_ioc_pseudofs_rw *pfs, hammer_pseudofs_data_t pfsd, 49 int pfs_id) 50 { 51 bzero(pfs, sizeof(*pfs)); 52 53 if (pfsd) 54 pfs->ondisk = pfsd; 55 else 56 pfs->ondisk = malloc(sizeof(*pfs->ondisk)); 57 bzero(pfs->ondisk, sizeof(*pfs->ondisk)); 58 59 pfs->pfs_id = pfs_id; 60 pfs->bytes = sizeof(*pfs->ondisk); 61 pfs->version = HAMMER_IOC_PSEUDOFS_VERSION; 62 } 63 64 /* 65 * If path is a symlink, return strdup'd path. 66 * If it's a directory via symlink, strip trailing / 67 * from strdup'd path and return the symlink. 68 */ 69 static char* 70 getlink(const char *path) 71 { 72 int i; 73 char *linkpath; 74 struct stat st; 75 76 if (lstat(path, &st)) 77 return(NULL); 78 linkpath = strdup(path); 79 80 if (S_ISDIR(st.st_mode)) { 81 i = strlen(linkpath) - 1; 82 while (i > 0 && linkpath[i] == '/') 83 linkpath[i--] = 0; 84 lstat(linkpath, &st); 85 } 86 if (S_ISLNK(st.st_mode)) { 87 return(linkpath); 88 } 89 90 free(linkpath); 91 return(NULL); 92 } 93 94 /* 95 * Calculate the PFS id given a path to a file/directory or 96 * a @@%llx:%d softlink. 97 */ 98 int 99 getpfs(struct hammer_ioc_pseudofs_rw *pfs, const char *path) 100 { 101 int fd; 102 103 clrpfs(pfs, NULL, -1); 104 105 /* 106 * Extract the PFS id. 107 * dirname(path) is supposed to be a directory in root PFS. 108 */ 109 if (scanpfsid(pfs, path) == 0) { 110 path = dirname(path); /* strips trailing / first if any */ 111 } 112 113 /* 114 * Open the path regardless of scanpfsid() result, since some 115 * commands can take a regular file/directory (e.g. pfs-status). 116 */ 117 fd = open(path, O_RDONLY); 118 if (fd < 0) 119 err(1, "Failed to open %s", path); 120 121 /* 122 * If pfs.pfs_id has been set to non -1, the file descriptor fd 123 * could be any fd of HAMMER inodes since HAMMERIOC_GET_PSEUDOFS 124 * doesn't depend on inode attributes if it's set to a valid id. 125 */ 126 if (ioctl(fd, HAMMERIOC_GET_PSEUDOFS, pfs) < 0) 127 err(1, "Cannot access %s", path); 128 129 return(fd); 130 } 131 132 /* 133 * Extract the PFS id from path. 134 */ 135 static int 136 scanpfsid(struct hammer_ioc_pseudofs_rw *pfs, const char *path) 137 { 138 char *linkpath; 139 char buf[64]; 140 uintmax_t dummy_tid; 141 struct stat st; 142 143 if (stat(path, &st)) { 144 /* possibly slave PFS */ 145 } else if (S_ISDIR(st.st_mode)) { 146 /* possibly master or slave PFS */ 147 } else { 148 return(-1); /* neither */ 149 } 150 151 linkpath = getlink(path); 152 if (linkpath) { 153 /* 154 * Read the symlink assuming it's a link to PFS. 155 */ 156 bzero(buf, sizeof(buf)); 157 if (readlink(linkpath, buf, sizeof(buf) - 1) < 0) { 158 free(linkpath); 159 return(-1); 160 } 161 free(linkpath); 162 path = buf; 163 } 164 165 /* 166 * The symlink created by pfs-master|slave is just a symlink. 167 * One could happen to remove a symlink and relink PFS as 168 * # ln -s ./@@-1:00001 ./link 169 * which results PFS having something extra before @@. 170 * One could also directly use the PFS and results the same. 171 * Get rid of it before we extract the PFS id. 172 */ 173 if (strchr(path, '/')) { 174 path = basename(path); /* strips trailing / first if any */ 175 if (path == NULL) 176 err(1, "basename"); 177 } 178 179 /* 180 * Test and extract the PFS id from the link. 181 * "@@%jx:%d" covers both "@@-1:%05d" format for master PFS 182 * and "@@0x%016jx:%05d" format for slave PFS. 183 */ 184 if (sscanf(path, "@@%jx:%d", &dummy_tid, &pfs->pfs_id) == 2) { 185 assert(pfs->pfs_id > 0); 186 return(0); 187 } 188 189 return(-1); 190 } 191 192 void 193 relpfs(int fd, struct hammer_ioc_pseudofs_rw *pfs) 194 { 195 if (fd >= 0) 196 close(fd); 197 if (pfs->ondisk) { 198 free(pfs->ondisk); 199 pfs->ondisk = NULL; 200 } 201 } 202 203 static void 204 print_pfs_status(char *path) 205 { 206 struct hammer_ioc_pseudofs_rw pfs; 207 int fd; 208 209 fd = getpfs(&pfs, path); 210 printf("%s\t", path); 211 if (fd < 0 || ioctl(fd, HAMMERIOC_GET_PSEUDOFS, &pfs) < 0) { 212 printf("Invalid PFS path %s\n", path); 213 } else { 214 printf("PFS#%d {\n", pfs.pfs_id); 215 dump_pfsd(pfs.ondisk, fd); 216 printf("}\n"); 217 } 218 if (fd >= 0) 219 close(fd); 220 if (pfs.ondisk) 221 free(pfs.ondisk); 222 relpfs(fd, &pfs); 223 } 224 225 void 226 hammer_cmd_pseudofs_status(char **av, int ac) 227 { 228 int i; 229 230 if (ac == 0) { 231 char buf[2] = "."; /* can't be readonly string */ 232 print_pfs_status(buf); 233 return; 234 } 235 236 for (i = 0; i < ac; ++i) 237 print_pfs_status(av[i]); 238 } 239 240 void 241 hammer_cmd_pseudofs_create(char **av, int ac, int is_slave) 242 { 243 struct hammer_ioc_pseudofs_rw pfs; 244 struct hammer_pseudofs_data pfsd; 245 struct stat st; 246 const char *path; 247 char *dirpath; 248 char *linkpath; 249 int pfs_id; 250 int fd; 251 252 if (ac == 0) 253 pseudofs_usage(1); 254 path = av[0]; 255 if (lstat(path, &st) == 0) { 256 errx(1, "Cannot create %s, file exists!", path); 257 } else if (path[strlen(path) - 1] == '/') { 258 errx(1, "Invalid PFS path %s with trailing /", path); 259 } 260 261 /* 262 * Figure out the directory prefix, taking care of degenerate 263 * cases. 264 */ 265 dirpath = dirname(path); 266 fd = open(dirpath, O_RDONLY); 267 if (fd < 0) 268 err(1, "Cannot open directory %s", dirpath); 269 270 /* 271 * Avoid foot-shooting. Don't let the user create a PFS 272 * softlink via a PFS. PFS softlinks may only be accessed 273 * via the master filesystem. Checking it here ensures 274 * other PFS commands access PFS under the master filesystem. 275 */ 276 clrpfs(&pfs, &pfsd, -1); 277 278 ioctl(fd, HAMMERIOC_GET_PSEUDOFS, &pfs); 279 if (pfs.pfs_id != HAMMER_ROOT_PFSID) { 280 fprintf(stderr, 281 "You are attempting to access a PFS softlink " 282 "from a PFS. It may not represent the PFS\n" 283 "on the main filesystem mount that you " 284 "expect! You may only access PFS softlinks\n" 285 "via the main filesystem mount!\n"); 286 exit(1); 287 } 288 289 for (pfs_id = 0; pfs_id < HAMMER_MAX_PFS; ++pfs_id) { 290 clrpfs(&pfs, &pfsd, pfs_id); 291 if (ioctl(fd, HAMMERIOC_GET_PSEUDOFS, &pfs) < 0) { 292 if (errno != ENOENT) 293 err(1, "Cannot create %s", path); 294 break; 295 } 296 } 297 if (pfs_id == HAMMER_MAX_PFS) { 298 errx(1, "Cannot create %s, all PFSs in use", path); 299 } else if (pfs_id == HAMMER_ROOT_PFSID) { 300 errx(1, "Fatal error: PFS#%d must exist", HAMMER_ROOT_PFSID); 301 } 302 303 /* 304 * Create the new PFS 305 */ 306 printf("Creating PFS#%d\t", pfs_id); 307 clrpfs(&pfs, &pfsd, pfs_id); 308 init_pfsd(&pfsd, is_slave); 309 310 if (ioctl(fd, HAMMERIOC_SET_PSEUDOFS, &pfs) < 0) { 311 printf("failed: %s\n", strerror(errno)); 312 } else { 313 /* special symlink, must be exactly 10 characters */ 314 asprintf(&linkpath, "@@PFS%05d", pfs_id); 315 if (symlink(linkpath, path) < 0) { 316 printf("failed: cannot create symlink: %s\n", 317 strerror(errno)); 318 } else { 319 printf("succeeded!\n"); 320 hammer_cmd_pseudofs_update(av, ac); 321 } 322 } 323 free(dirpath); 324 close(fd); 325 } 326 327 void 328 hammer_cmd_pseudofs_destroy(char **av, int ac) 329 { 330 struct hammer_ioc_pseudofs_rw pfs; 331 char *linkpath; 332 int fd; 333 int i; 334 335 if (ac == 0) 336 pseudofs_usage(1); 337 fd = getpfs(&pfs, av[0]); 338 339 if (pfs.pfs_id == HAMMER_ROOT_PFSID) 340 errx(1, "You cannot destroy PFS#%d", HAMMER_ROOT_PFSID); 341 342 printf("You have requested that PFS#%d (%s) be destroyed\n", 343 pfs.pfs_id, pfs.ondisk->label); 344 printf("This will irrevocably destroy all data on this PFS!!!!!\n"); 345 printf("Do you really want to do this? [y/n] "); 346 fflush(stdout); 347 if (getyn() == 0) 348 errx(1, "No action taken on PFS#%d", pfs.pfs_id); 349 350 if (hammer_is_pfs_master(pfs.ondisk)) { 351 printf("This PFS is currently setup as a MASTER!\n"); 352 printf("Are you absolutely sure you want to destroy it? [y/n] "); 353 fflush(stdout); 354 if (getyn() == 0) 355 errx(1, "No action taken on PFS#%d", pfs.pfs_id); 356 } 357 358 printf("Destroying PFS#%d (%s)", pfs.pfs_id, pfs.ondisk->label); 359 if (DebugOpt) { 360 printf("\n"); 361 } else { 362 printf(" in"); 363 for (i = 5; i; --i) { 364 printf(" %d", i); 365 fflush(stdout); 366 sleep(1); 367 } 368 printf(".. starting destruction pass\n"); 369 } 370 371 /* 372 * Remove the softlink on success. 373 */ 374 if (ioctl(fd, HAMMERIOC_RMR_PSEUDOFS, &pfs) == 0) { 375 printf("pfs-destroy of PFS#%d succeeded!\n", pfs.pfs_id); 376 linkpath = getlink(av[0]); 377 if (linkpath) { 378 if (remove(linkpath) < 0) 379 err(1, "Unable to remove softlink %s", linkpath); 380 free(linkpath); 381 } 382 } else { 383 printf("pfs-destroy of PFS#%d failed: %s\n", 384 pfs.pfs_id, strerror(errno)); 385 } 386 relpfs(fd, &pfs); 387 } 388 389 void 390 hammer_cmd_pseudofs_upgrade(char **av, int ac) 391 { 392 struct hammer_ioc_pseudofs_rw pfs; 393 int fd; 394 395 if (ac == 0) 396 pseudofs_usage(1); 397 fd = getpfs(&pfs, av[0]); 398 399 if (pfs.pfs_id == HAMMER_ROOT_PFSID) { 400 errx(1, "You cannot upgrade PFS#%d" 401 " (It should already be a master)", 402 HAMMER_ROOT_PFSID); 403 } else if (hammer_is_pfs_master(pfs.ondisk)) { 404 errx(1, "It is already a master"); 405 } 406 407 if (ioctl(fd, HAMMERIOC_UPG_PSEUDOFS, &pfs) == 0) { 408 printf("pfs-upgrade of PFS#%d (%s) succeeded\n", 409 pfs.pfs_id, pfs.ondisk->label); 410 } else { 411 err(1, "pfs-upgrade of PFS#%d (%s) failed", 412 pfs.pfs_id, pfs.ondisk->label); 413 } 414 relpfs(fd, &pfs); 415 } 416 417 void 418 hammer_cmd_pseudofs_downgrade(char **av, int ac) 419 { 420 struct hammer_ioc_pseudofs_rw pfs; 421 int fd; 422 423 if (ac == 0) 424 pseudofs_usage(1); 425 fd = getpfs(&pfs, av[0]); 426 427 if (pfs.pfs_id == HAMMER_ROOT_PFSID) { 428 errx(1, "You cannot downgrade PFS#%d", HAMMER_ROOT_PFSID); 429 } else if (hammer_is_pfs_slave(pfs.ondisk)) { 430 errx(1, "It is already a slave"); 431 } 432 433 if (ioctl(fd, HAMMERIOC_DGD_PSEUDOFS, &pfs) == 0) { 434 printf("pfs-downgrade of PFS#%d (%s) succeeded\n", 435 pfs.pfs_id, pfs.ondisk->label); 436 } else { 437 err(1, "pfs-downgrade of PFS#%d (%s) failed", 438 pfs.pfs_id, pfs.ondisk->label); 439 } 440 relpfs(fd, &pfs); 441 } 442 443 void 444 hammer_cmd_pseudofs_update(char **av, int ac) 445 { 446 struct hammer_ioc_pseudofs_rw pfs; 447 int fd; 448 449 if (ac == 0) 450 pseudofs_usage(1); 451 fd = getpfs(&pfs, av[0]); 452 453 printf("%s\n", av[0]); 454 fflush(stdout); 455 456 if (ioctl(fd, HAMMERIOC_GET_PSEUDOFS, &pfs) == 0) { 457 parse_pfsd_options(av + 1, ac - 1, pfs.ondisk); 458 if (hammer_is_pfs_slave(pfs.ondisk) && 459 pfs.pfs_id == HAMMER_ROOT_PFSID) { 460 errx(1, "The real mount point cannot be made a PFS " 461 "slave, only PFS sub-directories can be made " 462 "slaves"); 463 } 464 pfs.bytes = sizeof(*pfs.ondisk); 465 if (ioctl(fd, HAMMERIOC_SET_PSEUDOFS, &pfs) == 0) { 466 if (ioctl(fd, HAMMERIOC_GET_PSEUDOFS, &pfs) == 0) { 467 dump_pfsd(pfs.ondisk, fd); 468 } else { 469 err(1, "Unable to retrieve PFS configuration " 470 "after successful update"); 471 } 472 } else { 473 err(1, "Unable to adjust PFS configuration"); 474 } 475 } 476 relpfs(fd, &pfs); 477 } 478 479 static void 480 init_pfsd(hammer_pseudofs_data_t pfsd, int is_slave) 481 { 482 uint32_t status; 483 484 bzero(pfsd, sizeof(*pfsd)); 485 pfsd->sync_beg_tid = 1; 486 pfsd->sync_end_tid = 1; 487 pfsd->sync_beg_ts = 0; 488 pfsd->sync_end_ts = 0; 489 uuid_create(&pfsd->shared_uuid, &status); 490 uuid_create(&pfsd->unique_uuid, &status); 491 if (is_slave) 492 pfsd->mirror_flags |= HAMMER_PFSD_SLAVE; 493 } 494 495 void 496 dump_pfsd(hammer_pseudofs_data_t pfsd, int fd) 497 { 498 struct hammer_ioc_version version; 499 uint32_t status; 500 char *str = NULL; 501 502 printf(" sync-beg-tid=0x%016jx\n", (uintmax_t)pfsd->sync_beg_tid); 503 printf(" sync-end-tid=0x%016jx\n", (uintmax_t)pfsd->sync_end_tid); 504 uuid_to_string(&pfsd->shared_uuid, &str, &status); 505 printf(" shared-uuid=%s\n", str); 506 free(str); 507 uuid_to_string(&pfsd->unique_uuid, &str, &status); 508 printf(" unique-uuid=%s\n", str); 509 free(str); 510 printf(" label=\"%s\"\n", pfsd->label); 511 if (pfsd->snapshots[0]) 512 printf(" snapshots=\"%s\"\n", pfsd->snapshots); 513 if (pfsd->prune_min < (60 * 60 * 24)) { 514 printf(" prune-min=%02d:%02d:%02d\n", 515 pfsd->prune_min / 60 / 60 % 24, 516 pfsd->prune_min / 60 % 60, 517 pfsd->prune_min % 60); 518 } else if (pfsd->prune_min % (60 * 60 * 24)) { 519 printf(" prune-min=%dd/%02d:%02d:%02d\n", 520 pfsd->prune_min / 60 / 60 / 24, 521 pfsd->prune_min / 60 / 60 % 24, 522 pfsd->prune_min / 60 % 60, 523 pfsd->prune_min % 60); 524 } else { 525 printf(" prune-min=%dd\n", pfsd->prune_min / 60 / 60 / 24); 526 } 527 528 if (hammer_is_pfs_slave(pfsd)) { 529 printf(" operating as a SLAVE\n"); 530 } else { 531 printf(" operating as a MASTER\n"); 532 } 533 534 /* 535 * Snapshots directory cannot be shown when there is no fd since 536 * hammer version can't be retrieved. mirror-dump passes -1 because 537 * its input came from mirror-read output thus no path is available 538 * to open(2). 539 */ 540 if (fd >= 0 && pfsd->snapshots[0] == 0) { 541 bzero(&version, sizeof(version)); 542 if (ioctl(fd, HAMMERIOC_GET_VERSION, &version) < 0) 543 return; 544 if (version.cur_version < 3) { 545 if (hammer_is_pfs_slave(pfsd)) { 546 printf(" snapshots directory not set for " 547 "slave\n"); 548 } else { 549 printf(" snapshots directory for master " 550 "defaults to <pfs>/snapshots\n"); 551 } 552 } else { 553 printf(" snapshots directory defaults to " 554 "/var/hammer/<pfs>\n"); 555 } 556 } 557 } 558 559 static void 560 parse_pfsd_options(char **av, int ac, hammer_pseudofs_data_t pfsd) 561 { 562 char *cmd; 563 char *ptr; 564 int len; 565 uint32_t status; 566 567 while (ac) { 568 cmd = *av; 569 if ((ptr = strchr(cmd, '=')) != NULL) 570 *ptr++ = 0; 571 572 /* 573 * Basic assignment value test 574 */ 575 if (ptr == NULL) 576 errx(1, "option %s requires an assignment", cmd); 577 578 status = uuid_s_ok; 579 if (strcmp(cmd, "sync-beg-tid") == 0) { 580 pfsd->sync_beg_tid = strtoull(ptr, NULL, 16); 581 } else if (strcmp(cmd, "sync-end-tid") == 0) { 582 pfsd->sync_end_tid = strtoull(ptr, NULL, 16); 583 } else if (strcmp(cmd, "shared-uuid") == 0) { 584 uuid_from_string(ptr, &pfsd->shared_uuid, &status); 585 } else if (strcmp(cmd, "unique-uuid") == 0) { 586 uuid_from_string(ptr, &pfsd->unique_uuid, &status); 587 } else if (strcmp(cmd, "label") == 0) { 588 len = strlen(ptr); 589 if (ptr[0] == '"' && ptr[len-1] == '"') { 590 ptr[len-1] = 0; 591 ++ptr; 592 } else if (ptr[0] == '"') { 593 errx(1, "option %s: malformed string", cmd); 594 } 595 snprintf(pfsd->label, sizeof(pfsd->label), "%s", ptr); 596 } else if (strcmp(cmd, "snapshots") == 0) { 597 len = strlen(ptr); 598 if (ptr[0] != '/') { 599 fprintf(stderr, 600 "option %s: '%s' must be an " 601 "absolute path\n", cmd, ptr); 602 if (ptr[0] == 0) { 603 fprintf(stderr, 604 "use 'snapshots-clear' " 605 "to unset snapshots dir\n"); 606 } 607 exit(1); 608 } 609 if (len >= (int)sizeof(pfsd->snapshots)) { 610 errx(1, "option %s: path too long, %d " 611 "character limit", cmd, len); 612 } 613 snprintf(pfsd->snapshots, sizeof(pfsd->snapshots), 614 "%s", ptr); 615 } else if (strcmp(cmd, "snapshots-clear") == 0) { 616 pfsd->snapshots[0] = 0; 617 } else if (strcmp(cmd, "prune-min") == 0) { 618 pfsd->prune_min = timetosecs(ptr); 619 if (pfsd->prune_min < 0) { 620 errx(1, "option %s: illegal time spec, " 621 "use Nd or [Nd/]hh[:mm[:ss]]", ptr); 622 } 623 } else { 624 errx(1, "invalid option: %s", cmd); 625 } 626 if (status != uuid_s_ok) { 627 errx(1, "option %s: error parsing uuid %s", cmd, ptr); 628 } 629 --ac; 630 ++av; 631 } 632 } 633 634 static 635 void 636 pseudofs_usage(int code) 637 { 638 fprintf(stderr, 639 "hammer pfs-status <dirpath> ...\n" 640 "hammer pfs-master <dirpath> [options]\n" 641 "hammer pfs-slave <dirpath> [options]\n" 642 "hammer pfs-update <dirpath> [options]\n" 643 "hammer pfs-upgrade <dirpath>\n" 644 "hammer pfs-downgrade <dirpath>\n" 645 "hammer pfs-destroy <dirpath>\n" 646 "\n" 647 "options:\n" 648 " sync-beg-tid=0x16llx\n" 649 " sync-end-tid=0x16llx\n" 650 " shared-uuid=0x16llx\n" 651 " unique-uuid=0x16llx\n" 652 " label=\"string\"\n" 653 " snapshots=\"/path\"\n" 654 " snapshots-clear\n" 655 " prune-min=Nd\n" 656 " prune-min=[Nd/]hh[:mm[:ss]]\n" 657 ); 658 exit(code); 659 } 660 661 /* 662 * Convert time in the form [Nd/]hh[:mm[:ss]] to seconds. 663 * 664 * Return -1 if a parse error occurs. 665 * Return 0x7FFFFFFF if the time exceeds the maximum allowed. 666 */ 667 static 668 int 669 timetosecs(char *str) 670 { 671 int days = 0; 672 int hrs = 0; 673 int mins = 0; 674 int secs = 0; 675 int n; 676 long long v; 677 char *ptr; 678 679 n = strtol(str, &ptr, 10); 680 if (n < 0) 681 return(-1); 682 if (*ptr == 'd') { 683 days = n; 684 ++ptr; 685 if (*ptr == '/') 686 n = strtol(ptr + 1, &ptr, 10); 687 else 688 n = 0; 689 } 690 if (n < 0) 691 return(-1); 692 hrs = n; 693 if (*ptr == ':') { 694 n = strtol(ptr + 1, &ptr, 10); 695 if (n < 0) 696 return(-1); 697 mins = n; 698 if (*ptr == ':') { 699 n = strtol(ptr + 1, &ptr, 10); 700 if (n < 0) 701 return(-1); 702 secs = n; 703 } 704 } 705 if (*ptr) 706 return(-1); 707 v = days * 24 * 60 * 60 + hrs * 60 * 60 + mins * 60 + secs; 708 if (v > 0x7FFFFFFF) 709 v = 0x7FFFFFFF; 710 return((int)v); 711 } 712