main.c revision 1.56
1 /* $NetBSD: main.c,v 1.56 2003/08/07 10:04:14 agc 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT("@(#) Copyright (c) 1980, 1991, 1993, 1994\n\ 35 The Regents of the University of California. All rights reserved.\n"); 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/1/95"; 41 #else 42 __RCSID("$NetBSD: main.c,v 1.56 2003/08/07 10:04:14 agc Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #include <sys/param.h> 47 #include <sys/time.h> 48 #include <sys/stat.h> 49 #include <sys/mount.h> 50 51 #include <ufs/ufs/dinode.h> 52 #include <ufs/ffs/fs.h> 53 #include <ufs/ffs/ffs_extern.h> 54 55 #include <protocols/dumprestore.h> 56 57 #include <ctype.h> 58 #include <err.h> 59 #include <errno.h> 60 #include <fcntl.h> 61 #include <fstab.h> 62 #include <signal.h> 63 #include <stdio.h> 64 #include <stdlib.h> 65 #include <string.h> 66 #include <time.h> 67 #include <unistd.h> 68 69 #include "dump.h" 70 #include "pathnames.h" 71 72 int timestamp; /* print message timestamps */ 73 int notify; /* notify operator flag */ 74 int blockswritten; /* number of blocks written on current tape */ 75 int tapeno; /* current tape number */ 76 int density; /* density in bytes/0.1" */ 77 int ntrec = NTREC; /* # tape blocks in each tape record */ 78 int cartridge; /* Assume non-cartridge tape */ 79 long dev_bsize = 1; /* recalculated below */ 80 long blocksperfile; /* output blocks per file */ 81 char *host; /* remote host (if any) */ 82 int readcache = -1; /* read cache size (in readblksize blks) */ 83 int readblksize = 32 * 1024; /* read block size */ 84 char default_time_string[] = "%T %Z"; /* default timestamp string */ 85 char *time_string = default_time_string; /* timestamp string */ 86 87 int main(int, char *[]); 88 static long numarg(char *, long, long); 89 static void obsolete(int *, char **[]); 90 static void usage(void); 91 92 int 93 main(int argc, char *argv[]) 94 { 95 ino_t ino; 96 int dirty; 97 union dinode *dp; 98 struct fstab *dt; 99 struct statfs *mntinfo, fsbuf; 100 char *map; 101 int ch; 102 int i, anydirskipped, bflag = 0, Tflag = 0, Fflag = 0, honorlevel = 1; 103 ino_t maxino; 104 time_t tnow, date; 105 int dirc; 106 char *mountpoint; 107 int just_estimate = 0; 108 char labelstr[LBLSIZE]; 109 char *new_time_format; 110 111 spcl.c_date = 0; 112 (void)time(&tnow); 113 spcl.c_date = tnow; 114 tzset(); /* set up timezone for strftime */ 115 if ((new_time_format = getenv("TIMEFORMAT")) != NULL) 116 time_string = new_time_format; 117 118 tsize = 0; /* Default later, based on 'c' option for cart tapes */ 119 if ((tape = getenv("TAPE")) == NULL) 120 tape = _PATH_DEFTAPE; 121 dumpdates = _PATH_DUMPDATES; 122 temp = _PATH_DTMP; 123 strcpy(labelstr, "none"); /* XXX safe strcpy. */ 124 if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0) 125 quit("TP_BSIZE must be a multiple of DEV_BSIZE\n"); 126 level = '0'; 127 timestamp = 0; 128 129 if (argc < 2) 130 usage(); 131 132 obsolete(&argc, &argv); 133 while ((ch = getopt(argc, argv, 134 "0123456789aB:b:cd:eFf:h:k:l:L:nr:s:StT:uWw")) != -1) 135 switch (ch) { 136 /* dump level */ 137 case '0': case '1': case '2': case '3': case '4': 138 case '5': case '6': case '7': case '8': case '9': 139 level = ch; 140 break; 141 142 case 'a': /* `auto-size', Write to EOM. */ 143 unlimited = 1; 144 break; 145 146 case 'B': /* blocks per output file */ 147 blocksperfile = numarg("blocks per file", 1L, 0L); 148 break; 149 150 case 'b': /* blocks per tape write */ 151 ntrec = numarg("blocks per write", 1L, 1000L); 152 bflag = 1; 153 break; 154 155 case 'c': /* Tape is cart. not 9-track */ 156 cartridge = 1; 157 break; 158 159 case 'd': /* density, in bits per inch */ 160 density = numarg("density", 10L, 327670L) / 10; 161 if (density >= 625 && !bflag) 162 ntrec = HIGHDENSITYTREC; 163 break; 164 165 case 'e': /* eject full tapes */ 166 eflag = 1; 167 break; 168 169 case 'F': /* files-to-dump is an fs image */ 170 Fflag = 1; 171 break; 172 173 case 'f': /* output file */ 174 tape = optarg; 175 break; 176 177 case 'h': 178 honorlevel = numarg("honor level", 0L, 10L); 179 break; 180 181 case 'k': 182 readblksize = numarg("read block size", 0, 64) * 1024; 183 break; 184 185 case 'l': /* autoload after eject full tapes */ 186 eflag = 1; 187 lflag = numarg("timeout (in seconds)", 1, 0); 188 break; 189 190 case 'L': 191 /* 192 * Note that although there are LBLSIZE characters, 193 * the last must be '\0', so the limit on strlen() 194 * is really LBLSIZE-1. 195 */ 196 if (strlcpy(labelstr, optarg, sizeof(labelstr)) 197 >= sizeof(labelstr)) { 198 msg( 199 "WARNING Label `%s' is larger than limit of %lu characters.\n", 200 optarg, 201 (unsigned long)sizeof(labelstr) - 1); 202 msg("WARNING: Using truncated label `%s'.\n", 203 labelstr); 204 } 205 break; 206 case 'n': /* notify operators */ 207 notify = 1; 208 break; 209 210 case 'r': /* read cache size */ 211 readcache = numarg("read cache size", 0, 512); 212 break; 213 214 case 's': /* tape size, feet */ 215 tsize = numarg("tape size", 1L, 0L) * 12 * 10; 216 break; 217 218 case 'S': /* exit after estimating # of tapes */ 219 just_estimate = 1; 220 break; 221 222 case 't': 223 timestamp = 1; 224 break; 225 226 case 'T': /* time of last dump */ 227 spcl.c_ddate = unctime(optarg); 228 if (spcl.c_ddate < 0) { 229 (void)fprintf(stderr, "bad time \"%s\"\n", 230 optarg); 231 exit(X_STARTUP); 232 } 233 Tflag = 1; 234 lastlevel = '?'; 235 break; 236 237 case 'u': /* update /etc/dumpdates */ 238 uflag = 1; 239 break; 240 241 case 'W': /* what to do */ 242 case 'w': 243 lastdump(ch); 244 exit(X_FINOK); /* do nothing else */ 245 246 default: 247 usage(); 248 } 249 argc -= optind; 250 argv += optind; 251 252 if (argc < 1) { 253 (void)fprintf(stderr, 254 "Must specify disk or image, or file list\n"); 255 exit(X_STARTUP); 256 } 257 258 259 /* 260 * determine if disk is a subdirectory, and setup appropriately 261 */ 262 getfstab(); /* /etc/fstab snarfed */ 263 disk = NULL; 264 mountpoint = NULL; 265 dirc = 0; 266 for (i = 0; i < argc; i++) { 267 struct stat sb; 268 269 if (lstat(argv[i], &sb) == -1) 270 quit("Cannot stat %s: %s\n", argv[i], strerror(errno)); 271 if (Fflag || S_ISCHR(sb.st_mode) || S_ISBLK(sb.st_mode)) { 272 disk = argv[i]; 273 multicheck: 274 if (dirc != 0) 275 quit( 276 "Can't dump a disk or image at the same time as a file list\n"); 277 break; 278 } 279 if ((dt = fstabsearch(argv[i])) != NULL) { 280 disk = dt->fs_spec; 281 mountpoint = xstrdup(dt->fs_file); 282 goto multicheck; 283 } 284 if (statfs(argv[i], &fsbuf) == -1) 285 quit("Cannot statfs %s: %s\n", argv[i], 286 strerror(errno)); 287 disk = fsbuf.f_mntfromname; 288 if (strcmp(argv[i], fsbuf.f_mntonname) == 0) 289 goto multicheck; 290 if (mountpoint == NULL) { 291 mountpoint = xstrdup(fsbuf.f_mntonname); 292 if (uflag) { 293 msg("Ignoring u flag for subdir dump\n"); 294 uflag = 0; 295 } 296 if (level > '0') { 297 msg("Subdir dump is done at level 0\n"); 298 level = '0'; 299 } 300 msg("Dumping sub files/directories from %s\n", 301 mountpoint); 302 } else { 303 if (strcmp(mountpoint, fsbuf.f_mntonname) != 0) 304 quit("%s is not on %s\n", argv[i], mountpoint); 305 } 306 msg("Dumping file/directory %s\n", argv[i]); 307 dirc++; 308 } 309 if (mountpoint) 310 free(mountpoint); 311 312 if (dirc == 0) { 313 argv++; 314 if (argc != 1) { 315 (void)fprintf(stderr, "Excess arguments to dump:"); 316 while (--argc) 317 (void)fprintf(stderr, " %s", *argv++); 318 (void)fprintf(stderr, "\n"); 319 exit(X_STARTUP); 320 } 321 } 322 if (Tflag && uflag) { 323 (void)fprintf(stderr, 324 "You cannot use the T and u flags together.\n"); 325 exit(X_STARTUP); 326 } 327 if (strcmp(tape, "-") == 0) { 328 pipeout++; 329 tape = "standard output"; 330 } 331 332 if (blocksperfile) 333 blocksperfile = blocksperfile / ntrec * ntrec; /* round down */ 334 else if (!unlimited) { 335 /* 336 * Determine how to default tape size and density 337 * 338 * density tape size 339 * 9-track 1600 bpi (160 bytes/.1") 2300 ft. 340 * 9-track 6250 bpi (625 bytes/.1") 2300 ft. 341 * cartridge 8000 bpi (100 bytes/.1") 1700 ft. 342 * (450*4 - slop) 343 */ 344 if (density == 0) 345 density = cartridge ? 100 : 160; 346 if (tsize == 0) 347 tsize = cartridge ? 1700L*120L : 2300L*120L; 348 } 349 350 if (strchr(tape, ':')) { 351 host = tape; 352 tape = strchr(host, ':'); 353 *tape++ = '\0'; 354 #ifdef RDUMP 355 if (rmthost(host) == 0) 356 exit(X_STARTUP); 357 #else 358 (void)fprintf(stderr, "remote dump not enabled\n"); 359 exit(X_STARTUP); 360 #endif 361 } 362 363 if (signal(SIGHUP, SIG_IGN) != SIG_IGN) 364 signal(SIGHUP, sig); 365 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN) 366 signal(SIGTRAP, sig); 367 if (signal(SIGFPE, SIG_IGN) != SIG_IGN) 368 signal(SIGFPE, sig); 369 if (signal(SIGBUS, SIG_IGN) != SIG_IGN) 370 signal(SIGBUS, sig); 371 #if 0 372 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN) 373 signal(SIGSEGV, sig); 374 #endif 375 if (signal(SIGTERM, SIG_IGN) != SIG_IGN) 376 signal(SIGTERM, sig); 377 if (signal(SIGINT, interrupt) == SIG_IGN) 378 signal(SIGINT, SIG_IGN); 379 380 /* 381 * disk can be either the full special file name, or 382 * the file system name. 383 */ 384 mountpoint = NULL; 385 if ((dt = fstabsearch(disk)) != NULL) { 386 disk = rawname(dt->fs_spec); 387 mountpoint = dt->fs_file; 388 msg("Found %s on %s in %s\n", disk, mountpoint, _PATH_FSTAB); 389 } else if ((mntinfo = mntinfosearch(disk)) != NULL) { 390 disk = rawname(mntinfo->f_mntfromname); 391 mountpoint = mntinfo->f_mntonname; 392 msg("Found %s on %s in mount table\n", disk, mountpoint); 393 } 394 if (mountpoint != NULL) { 395 if (dirc != 0) 396 (void)snprintf(spcl.c_filesys, sizeof(spcl.c_filesys), 397 "a subset of %s", mountpoint); 398 else 399 (void)strlcpy(spcl.c_filesys, mountpoint, 400 sizeof(spcl.c_filesys)); 401 } else if (Fflag) { 402 (void)strlcpy(spcl.c_filesys, "a file system image", 403 sizeof(spcl.c_filesys)); 404 } else { 405 (void)strlcpy(spcl.c_filesys, "an unlisted file system", 406 sizeof(spcl.c_filesys)); 407 } 408 (void)strlcpy(spcl.c_dev, disk, sizeof(spcl.c_dev)); 409 (void)strlcpy(spcl.c_label, labelstr, sizeof(spcl.c_label)); 410 (void)gethostname(spcl.c_host, sizeof(spcl.c_host)); 411 spcl.c_host[sizeof(spcl.c_host) - 1] = '\0'; 412 413 if ((diskfd = open(disk, O_RDONLY)) < 0) { 414 msg("Cannot open %s\n", disk); 415 exit(X_STARTUP); 416 } 417 sync(); 418 419 needswap = fs_read_sblock(sblock_buf); 420 421 spcl.c_level = iswap32(level - '0'); 422 spcl.c_type = iswap32(TS_TAPE); 423 spcl.c_date = iswap32(spcl.c_date); 424 spcl.c_ddate = iswap32(spcl.c_ddate); 425 if (!Tflag) 426 getdumptime(); /* /etc/dumpdates snarfed */ 427 428 date = iswap32(spcl.c_date); 429 msg("Date of this level %c dump: %s", level, 430 spcl.c_date == 0 ? "the epoch\n" : ctime(&date)); 431 date = iswap32(spcl.c_ddate); 432 msg("Date of last level %c dump: %s", lastlevel, 433 spcl.c_ddate == 0 ? "the epoch\n" : ctime(&date)); 434 msg("Dumping "); 435 if (dirc != 0) 436 msgtail("a subset of "); 437 msgtail("%s (%s) ", disk, spcl.c_filesys); 438 if (host) 439 msgtail("to %s on host %s\n", tape, host); 440 else 441 msgtail("to %s\n", tape); 442 msg("Label: %s\n", labelstr); 443 444 ufsib = fs_parametrize(); 445 446 dev_bshift = ffs(dev_bsize) - 1; 447 if (dev_bsize != (1 << dev_bshift)) 448 quit("dev_bsize (%ld) is not a power of 2", dev_bsize); 449 tp_bshift = ffs(TP_BSIZE) - 1; 450 if (TP_BSIZE != (1 << tp_bshift)) 451 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE); 452 maxino = fs_maxino(); 453 mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE); 454 usedinomap = (char *)xcalloc((unsigned) mapsize, sizeof(char)); 455 dumpdirmap = (char *)xcalloc((unsigned) mapsize, sizeof(char)); 456 dumpinomap = (char *)xcalloc((unsigned) mapsize, sizeof(char)); 457 tapesize = 3 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1); 458 459 nonodump = iswap32(spcl.c_level) < honorlevel; 460 461 initcache(readcache, readblksize); 462 463 (void)signal(SIGINFO, statussig); 464 465 msg("mapping (Pass I) [regular files]\n"); 466 anydirskipped = mapfiles(maxino, &tapesize, mountpoint, 467 (dirc ? argv : NULL)); 468 469 msg("mapping (Pass II) [directories]\n"); 470 while (anydirskipped) { 471 anydirskipped = mapdirs(maxino, &tapesize); 472 } 473 474 if (pipeout || unlimited) { 475 tapesize += 10; /* 10 trailer blocks */ 476 msg("estimated %llu tape blocks.\n", 477 (unsigned long long)tapesize); 478 } else { 479 double fetapes; 480 481 if (blocksperfile) 482 fetapes = (double) tapesize / blocksperfile; 483 else if (cartridge) { 484 /* Estimate number of tapes, assuming streaming stops at 485 the end of each block written, and not in mid-block. 486 Assume no erroneous blocks; this can be compensated 487 for with an artificially low tape size. */ 488 fetapes = 489 ( (double) tapesize /* blocks */ 490 * TP_BSIZE /* bytes/block */ 491 * (1.0/density) /* 0.1" / byte */ 492 + 493 (double) tapesize /* blocks */ 494 * (1.0/ntrec) /* streaming-stops per block */ 495 * 15.48 /* 0.1" / streaming-stop */ 496 ) * (1.0 / tsize ); /* tape / 0.1" */ 497 } else { 498 /* Estimate number of tapes, for old fashioned 9-track 499 tape */ 500 int tenthsperirg = (density == 625) ? 3 : 7; 501 fetapes = 502 ( tapesize /* blocks */ 503 * TP_BSIZE /* bytes / block */ 504 * (1.0/density) /* 0.1" / byte */ 505 + 506 tapesize /* blocks */ 507 * (1.0/ntrec) /* IRG's / block */ 508 * tenthsperirg /* 0.1" / IRG */ 509 ) * (1.0 / tsize ); /* tape / 0.1" */ 510 } 511 etapes = fetapes; /* truncating assignment */ 512 etapes++; 513 /* count the dumped inodes map on each additional tape */ 514 tapesize += (etapes - 1) * 515 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1); 516 tapesize += etapes + 10; /* headers + 10 trailer blks */ 517 msg("estimated %llu tape blocks on %3.2f tape(s).\n", 518 (unsigned long long)tapesize, fetapes); 519 } 520 /* 521 * If the user only wants an estimate of the number of 522 * tapes, exit now. 523 */ 524 if (just_estimate) 525 exit(X_FINOK); 526 527 /* 528 * Allocate tape buffer. 529 */ 530 if (!alloctape()) 531 quit("can't allocate tape buffers - try a smaller blocking factor.\n"); 532 533 startnewtape(1); 534 (void)time((time_t *)&(tstart_writing)); 535 xferrate = 0; 536 dumpmap(usedinomap, TS_CLRI, maxino - 1); 537 538 msg("dumping (Pass III) [directories]\n"); 539 dirty = 0; /* XXX just to get gcc to shut up */ 540 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) { 541 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */ 542 dirty = *map++; 543 else 544 dirty >>= 1; 545 if ((dirty & 1) == 0) 546 continue; 547 /* 548 * Skip directory inodes deleted and maybe reallocated 549 */ 550 dp = getino(ino); 551 if ((DIP(dp, mode) & IFMT) != IFDIR) 552 continue; 553 (void)dumpino(dp, ino); 554 } 555 556 msg("dumping (Pass IV) [regular files]\n"); 557 for (map = dumpinomap, ino = 1; ino < maxino; ino++) { 558 int mode; 559 560 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */ 561 dirty = *map++; 562 else 563 dirty >>= 1; 564 if ((dirty & 1) == 0) 565 continue; 566 /* 567 * Skip inodes deleted and reallocated as directories. 568 */ 569 dp = getino(ino); 570 mode = DIP(dp, mode) & IFMT; 571 if (mode == IFDIR) 572 continue; 573 (void)dumpino(dp, ino); 574 } 575 576 spcl.c_type = iswap32(TS_END); 577 for (i = 0; i < ntrec; i++) 578 writeheader(maxino - 1); 579 if (pipeout) 580 msg("%d tape blocks\n",iswap32(spcl.c_tapea)); 581 else 582 msg("%d tape blocks on %d volume%s\n", 583 iswap32(spcl.c_tapea), iswap32(spcl.c_volume), 584 (iswap32(spcl.c_volume) == 1) ? "" : "s"); 585 tnow = do_stats(); 586 date = iswap32(spcl.c_date); 587 msg("Date of this level %c dump: %s", level, 588 spcl.c_date == 0 ? "the epoch\n" : ctime(&date)); 589 msg("Date this dump completed: %s", ctime(&tnow)); 590 msg("Average transfer rate: %d KB/s\n", xferrate / tapeno); 591 putdumptime(); 592 trewind(0); 593 broadcast("DUMP IS DONE!\a\a\n"); 594 msg("DUMP IS DONE\n"); 595 Exit(X_FINOK); 596 /* NOTREACHED */ 597 exit(X_FINOK); /* XXX: to satisfy gcc */ 598 } 599 600 static void 601 usage(void) 602 { 603 const char *prog = getprogname(); 604 605 (void)fprintf(stderr, 606 "usage: %s [-0123456789aceFnStu] [-B records] [-b blocksize]\n" 607 " [-d density] [-f file] [-h level] [-k read-blocksize]\n" 608 " [-L label] [-l timeout] [-r read-cache] [-s feet] [-T date] files-to-dump\n" 609 " %s [-W | -w]\n", prog, prog); 610 exit(X_STARTUP); 611 } 612 613 /* 614 * Pick up a numeric argument. It must be nonnegative and in the given 615 * range (except that a vmax of 0 means unlimited). 616 */ 617 static long 618 numarg(char *meaning, long vmin, long vmax) 619 { 620 char *p; 621 long val; 622 623 val = strtol(optarg, &p, 10); 624 if (*p) 625 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg); 626 if (val < vmin || (vmax && val > vmax)) 627 errx(X_STARTUP, "%s must be between %ld and %ld", 628 meaning, vmin, vmax); 629 return (val); 630 } 631 632 void 633 sig(int signo) 634 { 635 636 switch(signo) { 637 case SIGALRM: 638 case SIGBUS: 639 case SIGFPE: 640 case SIGHUP: 641 case SIGTERM: 642 case SIGTRAP: 643 if (pipeout) 644 quit("Signal on pipe: cannot recover\n"); 645 msg("Rewriting attempted as response to signal %s.\n", sys_siglist[signo]); 646 (void)fflush(stderr); 647 (void)fflush(stdout); 648 close_rewind(); 649 exit(X_REWRITE); 650 /* NOTREACHED */ 651 case SIGSEGV: 652 msg("SIGSEGV: ABORTING!\n"); 653 (void)signal(SIGSEGV, SIG_DFL); 654 (void)kill(0, SIGSEGV); 655 /* NOTREACHED */ 656 } 657 } 658 659 char * 660 rawname(char *cp) 661 { 662 static char rawbuf[MAXPATHLEN]; 663 char *dp = strrchr(cp, '/'); 664 665 if (dp == NULL) 666 return (NULL); 667 *dp = '\0'; 668 (void)snprintf(rawbuf, sizeof rawbuf, "%s/r%s", cp, dp + 1); 669 *dp = '/'; 670 return (rawbuf); 671 } 672 673 /* 674 * obsolete -- 675 * Change set of key letters and ordered arguments into something 676 * getopt(3) will like. 677 */ 678 static void 679 obsolete(int *argcp, char **argvp[]) 680 { 681 int argc, flags; 682 char *ap, **argv, *flagsp, **nargv, *p; 683 684 /* Setup. */ 685 argv = *argvp; 686 argc = *argcp; 687 688 /* Return if no arguments or first argument has leading dash. */ 689 ap = argv[1]; 690 if (argc == 1 || *ap == '-') 691 return; 692 693 /* Allocate space for new arguments. */ 694 *argvp = nargv = xmalloc((argc + 1) * sizeof(char *)); 695 p = flagsp = xmalloc(strlen(ap) + 2); 696 697 *nargv++ = *argv; 698 argv += 2; 699 700 for (flags = 0; *ap; ++ap) { 701 switch (*ap) { 702 case 'B': 703 case 'b': 704 case 'd': 705 case 'f': 706 case 'h': 707 case 's': 708 case 'T': 709 if (*argv == NULL) { 710 warnx("option requires an argument -- %c", *ap); 711 usage(); 712 } 713 nargv[0] = xmalloc(strlen(*argv) + 2 + 1); 714 nargv[0][0] = '-'; 715 nargv[0][1] = *ap; 716 (void)strcpy(&nargv[0][2], *argv); /* XXX safe strcpy */ 717 ++argv; 718 ++nargv; 719 break; 720 default: 721 if (!flags) { 722 *p++ = '-'; 723 flags = 1; 724 } 725 *p++ = *ap; 726 break; 727 } 728 } 729 730 /* Terminate flags. */ 731 if (flags) { 732 *p = '\0'; 733 *nargv++ = flagsp; 734 } 735 736 /* Copy remaining arguments. */ 737 while ((*nargv++ = *argv++) != NULL) 738 ; 739 740 /* Update argument count. */ 741 *argcp = nargv - *argvp - 1; 742 } 743 744 745 void * 746 xcalloc(size_t number, size_t size) 747 { 748 void *p; 749 750 p = calloc(number, size); 751 if (p == NULL) 752 quit("%s\n", strerror(errno)); 753 return (p); 754 } 755 756 void * 757 xmalloc(size_t size) 758 { 759 void *p; 760 761 p = malloc(size); 762 if (p == NULL) 763 quit("%s\n", strerror(errno)); 764 return (p); 765 } 766 767 char * 768 xstrdup(const char *str) 769 { 770 char *p; 771 772 p = strdup(str); 773 if (p == NULL) 774 quit("%s\n", strerror(errno)); 775 return (p); 776 } 777
Indexes created Mon Sep 22 10:09:38 GMT 2025