main.c revision 1.54
1 /* $NetBSD: main.c,v 1.54 2003/03/27 13:56:46 lukem Exp $ */ 2 3 /*- 4 * Copyright (c) 1980, 1991, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 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 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) Copyright (c) 1980, 1991, 1993, 1994\n\ 39 The Regents of the University of California. All rights reserved.\n"); 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/1/95"; 45 #else 46 __RCSID("$NetBSD: main.c,v 1.54 2003/03/27 13:56:46 lukem Exp $"); 47 #endif 48 #endif /* not lint */ 49 50 #include <sys/param.h> 51 #include <sys/time.h> 52 #include <sys/stat.h> 53 #include <sys/mount.h> 54 55 #include <ufs/ufs/dinode.h> 56 #include <ufs/ffs/fs.h> 57 #include <ufs/ffs/ffs_extern.h> 58 59 #include <protocols/dumprestore.h> 60 61 #include <ctype.h> 62 #include <err.h> 63 #include <errno.h> 64 #include <fcntl.h> 65 #include <fstab.h> 66 #include <signal.h> 67 #include <stdio.h> 68 #include <stdlib.h> 69 #include <string.h> 70 #include <time.h> 71 #include <unistd.h> 72 73 #include "dump.h" 74 #include "pathnames.h" 75 76 int timestamp; /* print message timestamps */ 77 int notify; /* notify operator flag */ 78 int blockswritten; /* number of blocks written on current tape */ 79 int tapeno; /* current tape number */ 80 int density; /* density in bytes/0.1" */ 81 int ntrec = NTREC; /* # tape blocks in each tape record */ 82 int cartridge; /* Assume non-cartridge tape */ 83 long dev_bsize = 1; /* recalculated below */ 84 long blocksperfile; /* output blocks per file */ 85 char *host; /* remote host (if any) */ 86 int readcache = -1; /* read cache size (in readblksize blks) */ 87 int readblksize = 32 * 1024; /* read block size */ 88 char default_time_string[] = "%T %Z"; /* default timestamp string */ 89 char *time_string = default_time_string; /* timestamp string */ 90 91 int main(int, char *[]); 92 static long numarg(char *, long, long); 93 static void obsolete(int *, char **[]); 94 static void usage(void); 95 96 int 97 main(int argc, char *argv[]) 98 { 99 ino_t ino; 100 int dirty; 101 struct dinode *dp; 102 struct fstab *dt; 103 struct statfs *mntinfo, fsbuf; 104 char *map; 105 int ch; 106 int i, anydirskipped, bflag = 0, Tflag = 0, Fflag = 0, honorlevel = 1; 107 ino_t maxino; 108 time_t tnow, date; 109 int dirc; 110 char *mountpoint; 111 int just_estimate = 0; 112 char labelstr[LBLSIZE]; 113 char *new_time_format; 114 115 spcl.c_date = 0; 116 (void)time(&tnow); 117 spcl.c_date = tnow; 118 tzset(); /* set up timezone for strftime */ 119 if ((new_time_format = getenv("TIMEFORMAT")) != NULL) 120 time_string = new_time_format; 121 122 tsize = 0; /* Default later, based on 'c' option for cart tapes */ 123 if ((tape = getenv("TAPE")) == NULL) 124 tape = _PATH_DEFTAPE; 125 dumpdates = _PATH_DUMPDATES; 126 temp = _PATH_DTMP; 127 strcpy(labelstr, "none"); /* XXX safe strcpy. */ 128 if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0) 129 quit("TP_BSIZE must be a multiple of DEV_BSIZE\n"); 130 level = '0'; 131 timestamp = 0; 132 133 if (argc < 2) 134 usage(); 135 136 obsolete(&argc, &argv); 137 while ((ch = getopt(argc, argv, 138 "0123456789aB:b:cd:eFf:h:k:l:L:nr:s:StT:uWw")) != -1) 139 switch (ch) { 140 /* dump level */ 141 case '0': case '1': case '2': case '3': case '4': 142 case '5': case '6': case '7': case '8': case '9': 143 level = ch; 144 break; 145 146 case 'a': /* `auto-size', Write to EOM. */ 147 unlimited = 1; 148 break; 149 150 case 'B': /* blocks per output file */ 151 blocksperfile = numarg("blocks per file", 1L, 0L); 152 break; 153 154 case 'b': /* blocks per tape write */ 155 ntrec = numarg("blocks per write", 1L, 1000L); 156 bflag = 1; 157 break; 158 159 case 'c': /* Tape is cart. not 9-track */ 160 cartridge = 1; 161 break; 162 163 case 'd': /* density, in bits per inch */ 164 density = numarg("density", 10L, 327670L) / 10; 165 if (density >= 625 && !bflag) 166 ntrec = HIGHDENSITYTREC; 167 break; 168 169 case 'e': /* eject full tapes */ 170 eflag = 1; 171 break; 172 173 case 'F': /* files-to-dump is an fs image */ 174 Fflag = 1; 175 break; 176 177 case 'f': /* output file */ 178 tape = optarg; 179 break; 180 181 case 'h': 182 honorlevel = numarg("honor level", 0L, 10L); 183 break; 184 185 case 'k': 186 readblksize = numarg("read block size", 0, 64) * 1024; 187 break; 188 189 case 'l': /* autoload after eject full tapes */ 190 eflag = 1; 191 lflag = numarg("timeout (in seconds)", 1, 0); 192 break; 193 194 case 'L': 195 /* 196 * Note that although there are LBLSIZE characters, 197 * the last must be '\0', so the limit on strlen() 198 * is really LBLSIZE-1. 199 */ 200 if (strlcpy(labelstr, optarg, sizeof(labelstr)) 201 >= sizeof(labelstr)) { 202 msg( 203 "WARNING Label `%s' is larger than limit of %lu characters.\n", 204 optarg, 205 (unsigned long)sizeof(labelstr) - 1); 206 msg("WARNING: Using truncated label `%s'.\n", 207 labelstr); 208 } 209 break; 210 case 'n': /* notify operators */ 211 notify = 1; 212 break; 213 214 case 'r': /* read cache size */ 215 readcache = numarg("read cache size", 0, 512); 216 break; 217 218 case 's': /* tape size, feet */ 219 tsize = numarg("tape size", 1L, 0L) * 12 * 10; 220 break; 221 222 case 'S': /* exit after estimating # of tapes */ 223 just_estimate = 1; 224 break; 225 226 case 't': 227 timestamp = 1; 228 break; 229 230 case 'T': /* time of last dump */ 231 spcl.c_ddate = unctime(optarg); 232 if (spcl.c_ddate < 0) { 233 (void)fprintf(stderr, "bad time \"%s\"\n", 234 optarg); 235 exit(X_STARTUP); 236 } 237 Tflag = 1; 238 lastlevel = '?'; 239 break; 240 241 case 'u': /* update /etc/dumpdates */ 242 uflag = 1; 243 break; 244 245 case 'W': /* what to do */ 246 case 'w': 247 lastdump(ch); 248 exit(X_FINOK); /* do nothing else */ 249 250 default: 251 usage(); 252 } 253 argc -= optind; 254 argv += optind; 255 256 if (argc < 1) { 257 (void)fprintf(stderr, 258 "Must specify disk or image, or file list\n"); 259 exit(X_STARTUP); 260 } 261 262 263 /* 264 * determine if disk is a subdirectory, and setup appropriately 265 */ 266 getfstab(); /* /etc/fstab snarfed */ 267 disk = NULL; 268 mountpoint = NULL; 269 dirc = 0; 270 for (i = 0; i < argc; i++) { 271 struct stat sb; 272 273 if (lstat(argv[i], &sb) == -1) 274 quit("Cannot stat %s: %s\n", argv[i], strerror(errno)); 275 if (Fflag || S_ISCHR(sb.st_mode) || S_ISBLK(sb.st_mode)) { 276 disk = argv[i]; 277 multicheck: 278 if (dirc != 0) 279 quit( 280 "Can't dump a disk or image at the same time as a file list\n"); 281 break; 282 } 283 if ((dt = fstabsearch(argv[i])) != NULL) { 284 disk = dt->fs_spec; 285 mountpoint = xstrdup(dt->fs_file); 286 goto multicheck; 287 } 288 if (statfs(argv[i], &fsbuf) == -1) 289 quit("Cannot statfs %s: %s\n", argv[i], 290 strerror(errno)); 291 disk = fsbuf.f_mntfromname; 292 if (strcmp(argv[i], fsbuf.f_mntonname) == 0) 293 goto multicheck; 294 if (mountpoint == NULL) { 295 mountpoint = xstrdup(fsbuf.f_mntonname); 296 if (uflag) { 297 msg("Ignoring u flag for subdir dump\n"); 298 uflag = 0; 299 } 300 if (level > '0') { 301 msg("Subdir dump is done at level 0\n"); 302 level = '0'; 303 } 304 msg("Dumping sub files/directories from %s\n", 305 mountpoint); 306 } else { 307 if (strcmp(mountpoint, fsbuf.f_mntonname) != 0) 308 quit("%s is not on %s\n", argv[i], mountpoint); 309 } 310 msg("Dumping file/directory %s\n", argv[i]); 311 dirc++; 312 } 313 if (mountpoint) 314 free(mountpoint); 315 316 if (dirc == 0) { 317 argv++; 318 if (argc != 1) { 319 (void)fprintf(stderr, "Excess arguments to dump:"); 320 while (--argc) 321 (void)fprintf(stderr, " %s", *argv++); 322 (void)fprintf(stderr, "\n"); 323 exit(X_STARTUP); 324 } 325 } 326 if (Tflag && uflag) { 327 (void)fprintf(stderr, 328 "You cannot use the T and u flags together.\n"); 329 exit(X_STARTUP); 330 } 331 if (strcmp(tape, "-") == 0) { 332 pipeout++; 333 tape = "standard output"; 334 } 335 336 if (blocksperfile) 337 blocksperfile = blocksperfile / ntrec * ntrec; /* round down */ 338 else if (!unlimited) { 339 /* 340 * Determine how to default tape size and density 341 * 342 * density tape size 343 * 9-track 1600 bpi (160 bytes/.1") 2300 ft. 344 * 9-track 6250 bpi (625 bytes/.1") 2300 ft. 345 * cartridge 8000 bpi (100 bytes/.1") 1700 ft. 346 * (450*4 - slop) 347 */ 348 if (density == 0) 349 density = cartridge ? 100 : 160; 350 if (tsize == 0) 351 tsize = cartridge ? 1700L*120L : 2300L*120L; 352 } 353 354 if (strchr(tape, ':')) { 355 host = tape; 356 tape = strchr(host, ':'); 357 *tape++ = '\0'; 358 #ifdef RDUMP 359 if (rmthost(host) == 0) 360 exit(X_STARTUP); 361 #else 362 (void)fprintf(stderr, "remote dump not enabled\n"); 363 exit(X_STARTUP); 364 #endif 365 } 366 367 if (signal(SIGHUP, SIG_IGN) != SIG_IGN) 368 signal(SIGHUP, sig); 369 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN) 370 signal(SIGTRAP, sig); 371 if (signal(SIGFPE, SIG_IGN) != SIG_IGN) 372 signal(SIGFPE, sig); 373 if (signal(SIGBUS, SIG_IGN) != SIG_IGN) 374 signal(SIGBUS, sig); 375 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN) 376 signal(SIGSEGV, sig); 377 if (signal(SIGTERM, SIG_IGN) != SIG_IGN) 378 signal(SIGTERM, sig); 379 if (signal(SIGINT, interrupt) == SIG_IGN) 380 signal(SIGINT, SIG_IGN); 381 382 /* 383 * disk can be either the full special file name, or 384 * the file system name. 385 */ 386 mountpoint = NULL; 387 if ((dt = fstabsearch(disk)) != NULL) { 388 disk = rawname(dt->fs_spec); 389 mountpoint = dt->fs_file; 390 msg("Found %s on %s in %s\n", disk, mountpoint, _PATH_FSTAB); 391 } else if ((mntinfo = mntinfosearch(disk)) != NULL) { 392 disk = rawname(mntinfo->f_mntfromname); 393 mountpoint = mntinfo->f_mntonname; 394 msg("Found %s on %s in mount table\n", disk, mountpoint); 395 } 396 if (mountpoint != NULL) { 397 if (dirc != 0) 398 (void)snprintf(spcl.c_filesys, sizeof(spcl.c_filesys), 399 "a subset of %s", mountpoint); 400 else 401 (void)strlcpy(spcl.c_filesys, mountpoint, 402 sizeof(spcl.c_filesys)); 403 } else if (Fflag) { 404 (void)strlcpy(spcl.c_filesys, "a file system image", 405 sizeof(spcl.c_filesys)); 406 } else { 407 (void)strlcpy(spcl.c_filesys, "an unlisted file system", 408 sizeof(spcl.c_filesys)); 409 } 410 (void)strlcpy(spcl.c_dev, disk, sizeof(spcl.c_dev)); 411 (void)strlcpy(spcl.c_label, labelstr, sizeof(spcl.c_label)); 412 (void)gethostname(spcl.c_host, sizeof(spcl.c_host)); 413 spcl.c_host[sizeof(spcl.c_host) - 1] = '\0'; 414 415 if ((diskfd = open(disk, O_RDONLY)) < 0) { 416 msg("Cannot open %s\n", disk); 417 exit(X_STARTUP); 418 } 419 sync(); 420 421 needswap = fs_read_sblock(sblock_buf); 422 423 spcl.c_level = iswap32(level - '0'); 424 spcl.c_type = iswap32(TS_TAPE); 425 spcl.c_date = iswap32(spcl.c_date); 426 spcl.c_ddate = iswap32(spcl.c_ddate); 427 if (!Tflag) 428 getdumptime(); /* /etc/dumpdates snarfed */ 429 430 date = iswap32(spcl.c_date); 431 msg("Date of this level %c dump: %s", level, 432 spcl.c_date == 0 ? "the epoch\n" : ctime(&date)); 433 date = iswap32(spcl.c_ddate); 434 msg("Date of last level %c dump: %s", lastlevel, 435 spcl.c_ddate == 0 ? "the epoch\n" : ctime(&date)); 436 msg("Dumping "); 437 if (dirc != 0) 438 msgtail("a subset of "); 439 msgtail("%s (%s) ", disk, spcl.c_filesys); 440 if (host) 441 msgtail("to %s on host %s\n", tape, host); 442 else 443 msgtail("to %s\n", tape); 444 msg("Label: %s\n", labelstr); 445 446 ufsib = fs_parametrize(); 447 448 dev_bshift = ffs(dev_bsize) - 1; 449 if (dev_bsize != (1 << dev_bshift)) 450 quit("dev_bsize (%ld) is not a power of 2", dev_bsize); 451 tp_bshift = ffs(TP_BSIZE) - 1; 452 if (TP_BSIZE != (1 << tp_bshift)) 453 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE); 454 maxino = fs_maxino(); 455 mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE); 456 usedinomap = (char *)xcalloc((unsigned) mapsize, sizeof(char)); 457 dumpdirmap = (char *)xcalloc((unsigned) mapsize, sizeof(char)); 458 dumpinomap = (char *)xcalloc((unsigned) mapsize, sizeof(char)); 459 tapesize = 3 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1); 460 461 nonodump = iswap32(spcl.c_level) < honorlevel; 462 463 initcache(readcache, readblksize); 464 465 (void)signal(SIGINFO, statussig); 466 467 msg("mapping (Pass I) [regular files]\n"); 468 anydirskipped = mapfiles(maxino, &tapesize, mountpoint, 469 (dirc ? argv : NULL)); 470 471 msg("mapping (Pass II) [directories]\n"); 472 while (anydirskipped) { 473 anydirskipped = mapdirs(maxino, &tapesize); 474 } 475 476 if (pipeout || unlimited) { 477 tapesize += 10; /* 10 trailer blocks */ 478 msg("estimated %ld tape blocks.\n", tapesize); 479 } else { 480 double fetapes; 481 482 if (blocksperfile) 483 fetapes = (double) tapesize / blocksperfile; 484 else if (cartridge) { 485 /* Estimate number of tapes, assuming streaming stops at 486 the end of each block written, and not in mid-block. 487 Assume no erroneous blocks; this can be compensated 488 for with an artificially low tape size. */ 489 fetapes = 490 ( (double) tapesize /* blocks */ 491 * TP_BSIZE /* bytes/block */ 492 * (1.0/density) /* 0.1" / byte */ 493 + 494 (double) tapesize /* blocks */ 495 * (1.0/ntrec) /* streaming-stops per block */ 496 * 15.48 /* 0.1" / streaming-stop */ 497 ) * (1.0 / tsize ); /* tape / 0.1" */ 498 } else { 499 /* Estimate number of tapes, for old fashioned 9-track 500 tape */ 501 int tenthsperirg = (density == 625) ? 3 : 7; 502 fetapes = 503 ( tapesize /* blocks */ 504 * TP_BSIZE /* bytes / block */ 505 * (1.0/density) /* 0.1" / byte */ 506 + 507 tapesize /* blocks */ 508 * (1.0/ntrec) /* IRG's / block */ 509 * tenthsperirg /* 0.1" / IRG */ 510 ) * (1.0 / tsize ); /* tape / 0.1" */ 511 } 512 etapes = fetapes; /* truncating assignment */ 513 etapes++; 514 /* count the dumped inodes map on each additional tape */ 515 tapesize += (etapes - 1) * 516 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1); 517 tapesize += etapes + 10; /* headers + 10 trailer blks */ 518 msg("estimated %ld tape blocks on %3.2f tape(s).\n", 519 tapesize, fetapes); 520 } 521 /* 522 * If the user only wants an estimate of the number of 523 * tapes, exit now. 524 */ 525 if (just_estimate) 526 exit(X_FINOK); 527 528 /* 529 * Allocate tape buffer. 530 */ 531 if (!alloctape()) 532 quit("can't allocate tape buffers - try a smaller blocking factor.\n"); 533 534 startnewtape(1); 535 (void)time((time_t *)&(tstart_writing)); 536 xferrate = 0; 537 dumpmap(usedinomap, TS_CLRI, maxino - 1); 538 539 msg("dumping (Pass III) [directories]\n"); 540 dirty = 0; /* XXX just to get gcc to shut up */ 541 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) { 542 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */ 543 dirty = *map++; 544 else 545 dirty >>= 1; 546 if ((dirty & 1) == 0) 547 continue; 548 /* 549 * Skip directory inodes deleted and maybe reallocated 550 */ 551 dp = getino(ino); 552 if ((dp->di_mode & IFMT) != IFDIR) 553 continue; 554 (void)dumpino(dp, ino); 555 } 556 557 msg("dumping (Pass IV) [regular files]\n"); 558 for (map = dumpinomap, ino = 1; ino < maxino; ino++) { 559 int mode; 560 561 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */ 562 dirty = *map++; 563 else 564 dirty >>= 1; 565 if ((dirty & 1) == 0) 566 continue; 567 /* 568 * Skip inodes deleted and reallocated as directories. 569 */ 570 dp = getino(ino); 571 mode = dp->di_mode & IFMT; 572 if (mode == IFDIR) 573 continue; 574 (void)dumpino(dp, ino); 575 } 576 577 spcl.c_type = iswap32(TS_END); 578 for (i = 0; i < ntrec; i++) 579 writeheader(maxino - 1); 580 if (pipeout) 581 msg("%d tape blocks\n",iswap32(spcl.c_tapea)); 582 else 583 msg("%d tape blocks on %d volume%s\n", 584 iswap32(spcl.c_tapea), iswap32(spcl.c_volume), 585 (iswap32(spcl.c_volume) == 1) ? "" : "s"); 586 tnow = do_stats(); 587 date = iswap32(spcl.c_date); 588 msg("Date of this level %c dump: %s", level, 589 spcl.c_date == 0 ? "the epoch\n" : ctime(&date)); 590 msg("Date this dump completed: %s", ctime(&tnow)); 591 msg("Average transfer rate: %d KB/s\n", xferrate / tapeno); 592 putdumptime(); 593 trewind(0); 594 broadcast("DUMP IS DONE!\a\a\n"); 595 msg("DUMP IS DONE\n"); 596 Exit(X_FINOK); 597 /* NOTREACHED */ 598 exit(X_FINOK); /* XXX: to satisfy gcc */ 599 } 600 601 static void 602 usage(void) 603 { 604 const char *prog = getprogname(); 605 606 (void)fprintf(stderr, 607 "usage: %s [-0123456789aceFnStu] [-B records] [-b blocksize]\n" 608 " [-d density] [-f file] [-h level] [-k read-blocksize]\n" 609 " [-L label] [-l timeout] [-r read-cache] [-s feet] [-T date] files-to-dump\n" 610 " %s [-W | -w]\n", prog, prog); 611 exit(X_STARTUP); 612 } 613 614 /* 615 * Pick up a numeric argument. It must be nonnegative and in the given 616 * range (except that a vmax of 0 means unlimited). 617 */ 618 static long 619 numarg(char *meaning, long vmin, long vmax) 620 { 621 char *p; 622 long val; 623 624 val = strtol(optarg, &p, 10); 625 if (*p) 626 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg); 627 if (val < vmin || (vmax && val > vmax)) 628 errx(X_STARTUP, "%s must be between %ld and %ld", 629 meaning, vmin, vmax); 630 return (val); 631 } 632 633 void 634 sig(int signo) 635 { 636 637 switch(signo) { 638 case SIGALRM: 639 case SIGBUS: 640 case SIGFPE: 641 case SIGHUP: 642 case SIGTERM: 643 case SIGTRAP: 644 if (pipeout) 645 quit("Signal on pipe: cannot recover\n"); 646 msg("Rewriting attempted as response to signal %s.\n", sys_siglist[signo]); 647 (void)fflush(stderr); 648 (void)fflush(stdout); 649 close_rewind(); 650 exit(X_REWRITE); 651 /* NOTREACHED */ 652 case SIGSEGV: 653 msg("SIGSEGV: ABORTING!\n"); 654 (void)signal(SIGSEGV, SIG_DFL); 655 (void)kill(0, SIGSEGV); 656 /* NOTREACHED */ 657 } 658 } 659 660 char * 661 rawname(char *cp) 662 { 663 static char rawbuf[MAXPATHLEN]; 664 char *dp = strrchr(cp, '/'); 665 666 if (dp == NULL) 667 return (NULL); 668 *dp = '\0'; 669 (void)snprintf(rawbuf, sizeof rawbuf, "%s/r%s", cp, dp + 1); 670 *dp = '/'; 671 return (rawbuf); 672 } 673 674 /* 675 * obsolete -- 676 * Change set of key letters and ordered arguments into something 677 * getopt(3) will like. 678 */ 679 static void 680 obsolete(int *argcp, char **argvp[]) 681 { 682 int argc, flags; 683 char *ap, **argv, *flagsp, **nargv, *p; 684 685 /* Setup. */ 686 argv = *argvp; 687 argc = *argcp; 688 689 /* Return if no arguments or first argument has leading dash. */ 690 ap = argv[1]; 691 if (argc == 1 || *ap == '-') 692 return; 693 694 /* Allocate space for new arguments. */ 695 *argvp = nargv = xmalloc((argc + 1) * sizeof(char *)); 696 p = flagsp = xmalloc(strlen(ap) + 2); 697 698 *nargv++ = *argv; 699 argv += 2; 700 701 for (flags = 0; *ap; ++ap) { 702 switch (*ap) { 703 case 'B': 704 case 'b': 705 case 'd': 706 case 'f': 707 case 'h': 708 case 's': 709 case 'T': 710 if (*argv == NULL) { 711 warnx("option requires an argument -- %c", *ap); 712 usage(); 713 } 714 nargv[0] = xmalloc(strlen(*argv) + 2 + 1); 715 nargv[0][0] = '-'; 716 nargv[0][1] = *ap; 717 (void)strcpy(&nargv[0][2], *argv); /* XXX safe strcpy */ 718 ++argv; 719 ++nargv; 720 break; 721 default: 722 if (!flags) { 723 *p++ = '-'; 724 flags = 1; 725 } 726 *p++ = *ap; 727 break; 728 } 729 } 730 731 /* Terminate flags. */ 732 if (flags) { 733 *p = '\0'; 734 *nargv++ = flagsp; 735 } 736 737 /* Copy remaining arguments. */ 738 while ((*nargv++ = *argv++) != NULL) 739 ; 740 741 /* Update argument count. */ 742 *argcp = nargv - *argvp - 1; 743 } 744 745 746 void * 747 xcalloc(size_t number, size_t size) 748 { 749 void *p; 750 751 p = calloc(number, size); 752 if (p == NULL) 753 quit("%s\n", strerror(errno)); 754 return (p); 755 } 756 757 void * 758 xmalloc(size_t size) 759 { 760 void *p; 761 762 p = malloc(size); 763 if (p == NULL) 764 quit("%s\n", strerror(errno)); 765 return (p); 766 } 767 768 char * 769 xstrdup(const char *str) 770 { 771 char *p; 772 773 p = strdup(str); 774 if (p == NULL) 775 quit("%s\n", strerror(errno)); 776 return (p); 777 } 778
Indexes created Thu Oct 16 14:10:15 GMT 2025