main.c revision 1.45
1 /* $NetBSD: main.c,v 1.45 2001/12/23 12:29:56 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 1.45 2001/12/23 12:29:56 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 #ifdef sunos 56 #include <sys/vnode.h> 57 58 #include <ufs/inode.h> 59 #include <ufs/fs.h> 60 #else 61 #include <ufs/ufs/dinode.h> 62 #include <ufs/ffs/fs.h> 63 #include <ufs/ffs/ffs_extern.h> 64 #endif 65 66 #include <protocols/dumprestore.h> 67 68 #include <ctype.h> 69 #include <err.h> 70 #include <errno.h> 71 #include <fcntl.h> 72 #include <fstab.h> 73 #include <signal.h> 74 #include <stdio.h> 75 #include <stdlib.h> 76 #include <string.h> 77 #include <time.h> 78 #include <unistd.h> 79 80 #include "dump.h" 81 #include "pathnames.h" 82 83 gid_t egid; /* Retain tty privs for notification */ 84 int timestamp; /* print message timestamps */ 85 int notify; /* notify operator flag */ 86 int blockswritten; /* number of blocks written on current tape */ 87 int tapeno; /* current tape number */ 88 int density; /* density in bytes/0.1" */ 89 int ntrec = NTREC; /* # tape blocks in each tape record */ 90 int cartridge; /* Assume non-cartridge tape */ 91 long dev_bsize = 1; /* recalculated below */ 92 long blocksperfile; /* output blocks per file */ 93 char *host; /* remote host (if any) */ 94 int readcache = -1; /* read cache size (in readblksize blks) */ 95 int readblksize = 32 * 1024; /* read block size */ 96 char default_time_string[] = "%T %Z"; /* default timestamp string */ 97 char *time_string = default_time_string; /* timestamp string */ 98 99 int main(int, char *[]); 100 static long numarg(char *, long, long); 101 static void obsolete(int *, char **[]); 102 static void usage(void); 103 104 int 105 main(int argc, char *argv[]) 106 { 107 ino_t ino; 108 int dirty; 109 struct dinode *dp; 110 struct fstab *dt; 111 struct statfs *mntinfo, fsbuf; 112 char *map; 113 int ch; 114 int i, anydirskipped, bflag = 0, Tflag = 0, Fflag = 0, honorlevel = 1; 115 ino_t maxino; 116 time_t tnow, date; 117 int dirc; 118 char *mountpoint; 119 int just_estimate = 0; 120 char labelstr[LBLSIZE]; 121 char *new_time_format; 122 123 spcl.c_date = 0; 124 (void)time((time_t *)&spcl.c_date); 125 tzset(); /* set up timezone for strftime */ 126 if ((new_time_format = getenv("TIMEFORMAT")) != NULL) 127 time_string = new_time_format; 128 129 /* Save setgid bit for use later */ 130 egid = getegid(); 131 setegid(getgid()); 132 133 tsize = 0; /* Default later, based on 'c' option for cart tapes */ 134 if ((tape = getenv("TAPE")) == NULL) 135 tape = _PATH_DEFTAPE; 136 dumpdates = _PATH_DUMPDATES; 137 temp = _PATH_DTMP; 138 strcpy(labelstr, "none"); /* XXX safe strcpy. */ 139 if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0) 140 quit("TP_BSIZE must be a multiple of DEV_BSIZE\n"); 141 level = '0'; 142 timestamp = 0; 143 144 if (argc < 2) 145 usage(); 146 147 obsolete(&argc, &argv); 148 while ((ch = getopt(argc, argv, 149 "0123456789B:b:cd:eFf:h:k:lL:nr:s:StT:uWw")) != -1) 150 switch (ch) { 151 /* dump level */ 152 case '0': case '1': case '2': case '3': case '4': 153 case '5': case '6': case '7': case '8': case '9': 154 level = ch; 155 break; 156 157 case 'B': /* blocks per output file */ 158 blocksperfile = numarg("blocks per file", 1L, 0L); 159 break; 160 161 case 'b': /* blocks per tape write */ 162 ntrec = numarg("blocks per write", 1L, 1000L); 163 bflag = 1; 164 break; 165 166 case 'c': /* Tape is cart. not 9-track */ 167 cartridge = 1; 168 break; 169 170 case 'd': /* density, in bits per inch */ 171 density = numarg("density", 10L, 327670L) / 10; 172 if (density >= 625 && !bflag) 173 ntrec = HIGHDENSITYTREC; 174 break; 175 176 case 'e': /* eject full tapes */ 177 eflag = 1; 178 break; 179 180 case 'F': /* files-to-dump is an fs image */ 181 Fflag = 1; 182 break; 183 184 case 'f': /* output file */ 185 tape = optarg; 186 break; 187 188 case 'h': 189 honorlevel = numarg("honor level", 0L, 10L); 190 break; 191 192 case 'k': 193 readblksize = numarg("read block size", 0, 64) * 1024; 194 break; 195 196 case 'l': /* autoload after eject full tapes */ 197 eflag = 1; 198 lflag = 1; 199 break; 200 201 case 'L': 202 /* 203 * Note that although there are LBLSIZE characters, 204 * the last must be '\0', so the limit on strlen() 205 * is really LBLSIZE-1. 206 */ 207 strncpy(labelstr, optarg, LBLSIZE); 208 labelstr[LBLSIZE-1] = '\0'; 209 if (strlen(optarg) > LBLSIZE-1) { 210 msg( 211 "WARNING Label `%s' is larger than limit of %d characters.\n", 212 optarg, LBLSIZE-1); 213 msg("WARNING: Using truncated label `%s'.\n", 214 labelstr); 215 } 216 break; 217 case 'n': /* notify operators */ 218 notify = 1; 219 break; 220 221 case 'r': /* read cache size */ 222 readcache = numarg("read cache size", 0, 512); 223 break; 224 225 case 's': /* tape size, feet */ 226 tsize = numarg("tape size", 1L, 0L) * 12 * 10; 227 break; 228 229 case 'S': /* exit after estimating # of tapes */ 230 just_estimate = 1; 231 break; 232 233 case 't': 234 timestamp = 1; 235 break; 236 237 case 'T': /* time of last dump */ 238 spcl.c_ddate = unctime(optarg); 239 if (spcl.c_ddate < 0) { 240 (void)fprintf(stderr, "bad time \"%s\"\n", 241 optarg); 242 exit(X_ABORT); 243 } 244 Tflag = 1; 245 lastlevel = '?'; 246 break; 247 248 case 'u': /* update /etc/dumpdates */ 249 uflag = 1; 250 break; 251 252 case 'W': /* what to do */ 253 case 'w': 254 lastdump(ch); 255 exit(0); /* do nothing else */ 256 257 default: 258 usage(); 259 } 260 argc -= optind; 261 argv += optind; 262 263 if (argc < 1) { 264 (void)fprintf(stderr, 265 "Must specify disk or image, or file list\n"); 266 exit(X_ABORT); 267 } 268 269 270 /* 271 * determine if disk is a subdirectory, and setup appropriately 272 */ 273 getfstab(); /* /etc/fstab snarfed */ 274 disk = NULL; 275 mountpoint = NULL; 276 dirc = 0; 277 for (i = 0; i < argc; i++) { 278 struct stat sb; 279 280 if (lstat(argv[i], &sb) == -1) 281 quit("Cannot stat %s: %s\n", argv[i], strerror(errno)); 282 if (Fflag || S_ISCHR(sb.st_mode) || S_ISBLK(sb.st_mode)) { 283 disk = argv[i]; 284 multicheck: 285 if (dirc != 0) 286 quit( 287 "Can't dump a disk or image at the same time as a file list\n"); 288 break; 289 } 290 if ((dt = fstabsearch(argv[i])) != NULL) { 291 disk = dt->fs_spec; 292 mountpoint = xstrdup(dt->fs_file); 293 goto multicheck; 294 } 295 if (statfs(argv[i], &fsbuf) == -1) 296 quit("Cannot statfs %s: %s\n", argv[i], 297 strerror(errno)); 298 disk = fsbuf.f_mntfromname; 299 if (strcmp(argv[i], fsbuf.f_mntonname) == 0) 300 goto multicheck; 301 if (mountpoint == NULL) { 302 mountpoint = xstrdup(fsbuf.f_mntonname); 303 if (uflag) { 304 msg("Ignoring u flag for subdir dump\n"); 305 uflag = 0; 306 } 307 if (level > '0') { 308 msg("Subdir dump is done at level 0\n"); 309 level = '0'; 310 } 311 msg("Dumping sub files/directories from %s\n", 312 mountpoint); 313 } else { 314 if (strcmp(mountpoint, fsbuf.f_mntonname) != 0) 315 quit("%s is not on %s\n", argv[i], mountpoint); 316 } 317 msg("Dumping file/directory %s\n", argv[i]); 318 dirc++; 319 } 320 if (mountpoint) 321 free(mountpoint); 322 323 if (dirc == 0) { 324 argv++; 325 if (argc != 1) { 326 (void)fprintf(stderr, "Excess arguments to dump:"); 327 while (--argc) 328 (void)fprintf(stderr, " %s", *argv++); 329 (void)fprintf(stderr, "\n"); 330 exit(X_ABORT); 331 } 332 } 333 if (Tflag && uflag) { 334 (void)fprintf(stderr, 335 "You cannot use the T and u flags together.\n"); 336 exit(X_ABORT); 337 } 338 if (strcmp(tape, "-") == 0) { 339 pipeout++; 340 tape = "standard output"; 341 } 342 343 if (blocksperfile) 344 blocksperfile = blocksperfile / ntrec * ntrec; /* round down */ 345 else { 346 /* 347 * Determine how to default tape size and density 348 * 349 * density tape size 350 * 9-track 1600 bpi (160 bytes/.1") 2300 ft. 351 * 9-track 6250 bpi (625 bytes/.1") 2300 ft. 352 * cartridge 8000 bpi (100 bytes/.1") 1700 ft. 353 * (450*4 - slop) 354 */ 355 if (density == 0) 356 density = cartridge ? 100 : 160; 357 if (tsize == 0) 358 tsize = cartridge ? 1700L*120L : 2300L*120L; 359 } 360 361 if (strchr(tape, ':')) { 362 host = tape; 363 tape = strchr(host, ':'); 364 *tape++ = '\0'; 365 #ifdef RDUMP 366 if (rmthost(host) == 0) 367 exit(X_ABORT); 368 #else 369 (void)fprintf(stderr, "remote dump not enabled\n"); 370 exit(X_ABORT); 371 #endif 372 } 373 374 if (signal(SIGHUP, SIG_IGN) != SIG_IGN) 375 signal(SIGHUP, sig); 376 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN) 377 signal(SIGTRAP, sig); 378 if (signal(SIGFPE, SIG_IGN) != SIG_IGN) 379 signal(SIGFPE, sig); 380 if (signal(SIGBUS, SIG_IGN) != SIG_IGN) 381 signal(SIGBUS, sig); 382 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN) 383 signal(SIGSEGV, sig); 384 if (signal(SIGTERM, SIG_IGN) != SIG_IGN) 385 signal(SIGTERM, sig); 386 if (signal(SIGINT, interrupt) == SIG_IGN) 387 signal(SIGINT, SIG_IGN); 388 389 set_operators(); /* /etc/group snarfed */ 390 391 /* 392 * disk can be either the full special file name, or 393 * the file system name. 394 */ 395 mountpoint = NULL; 396 if ((dt = fstabsearch(disk)) != NULL) { 397 disk = rawname(dt->fs_spec); 398 mountpoint = dt->fs_file; 399 msg("Found %s on %s in %s\n", disk, mountpoint, _PATH_FSTAB); 400 } else if ((mntinfo = mntinfosearch(disk)) != NULL) { 401 disk = rawname(mntinfo->f_mntfromname); 402 mountpoint = mntinfo->f_mntonname; 403 msg("Found %s on %s in mount table\n", disk, mountpoint); 404 } 405 if (mountpoint != NULL) { 406 if (dirc != 0) 407 (void)snprintf(spcl.c_filesys, NAMELEN, 408 "a subset of %s", mountpoint); 409 else 410 (void)strncpy(spcl.c_filesys, mountpoint, NAMELEN); 411 } else if (Fflag) { 412 (void)strncpy(spcl.c_filesys, "a file system image", NAMELEN); 413 } else { 414 (void)strncpy(spcl.c_filesys, "an unlisted file system", 415 NAMELEN); 416 } 417 (void)strncpy(spcl.c_dev, disk, NAMELEN); 418 (void)strncpy(spcl.c_label, labelstr, sizeof(spcl.c_label) - 1); 419 (void)gethostname(spcl.c_host, NAMELEN); 420 spcl.c_host[sizeof(spcl.c_host) - 1] = '\0'; 421 422 if ((diskfd = open(disk, O_RDONLY)) < 0) { 423 msg("Cannot open %s\n", disk); 424 exit(X_ABORT); 425 } 426 sync(); 427 428 needswap = fs_read_sblock(sblock_buf); 429 430 spcl.c_level = iswap32(level - '0'); 431 spcl.c_type = iswap32(TS_TAPE); 432 spcl.c_date = iswap32(spcl.c_date); 433 spcl.c_ddate = iswap32(spcl.c_ddate); 434 if (!Tflag) 435 getdumptime(); /* /etc/dumpdates snarfed */ 436 437 date = iswap32(spcl.c_date); 438 msg("Date of this level %c dump: %s", level, 439 spcl.c_date == 0 ? "the epoch\n" : ctime(&date)); 440 date = iswap32(spcl.c_ddate); 441 msg("Date of last level %c dump: %s", lastlevel, 442 spcl.c_ddate == 0 ? "the epoch\n" : ctime(&date)); 443 msg("Dumping "); 444 if (dirc != 0) 445 msgtail("a subset of "); 446 msgtail("%s (%s) ", disk, spcl.c_filesys); 447 if (host) 448 msgtail("to %s on host %s\n", tape, host); 449 else 450 msgtail("to %s\n", tape); 451 msg("Label: %s\n", labelstr); 452 453 ufsib = fs_parametrize(); 454 455 dev_bshift = ffs(dev_bsize) - 1; 456 if (dev_bsize != (1 << dev_bshift)) 457 quit("dev_bsize (%ld) is not a power of 2", dev_bsize); 458 tp_bshift = ffs(TP_BSIZE) - 1; 459 if (TP_BSIZE != (1 << tp_bshift)) 460 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE); 461 maxino = fs_maxino(); 462 mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE); 463 usedinomap = (char *)xcalloc((unsigned) mapsize, sizeof(char)); 464 dumpdirmap = (char *)xcalloc((unsigned) mapsize, sizeof(char)); 465 dumpinomap = (char *)xcalloc((unsigned) mapsize, sizeof(char)); 466 tapesize = 3 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1); 467 468 nonodump = iswap32(spcl.c_level) < honorlevel; 469 470 initcache(readcache, readblksize); 471 472 (void)signal(SIGINFO, statussig); 473 474 msg("mapping (Pass I) [regular files]\n"); 475 anydirskipped = mapfiles(maxino, &tapesize, mountpoint, 476 (dirc ? argv : NULL)); 477 478 msg("mapping (Pass II) [directories]\n"); 479 while (anydirskipped) { 480 anydirskipped = mapdirs(maxino, &tapesize); 481 } 482 483 if (pipeout) { 484 tapesize += 10; /* 10 trailer blocks */ 485 msg("estimated %ld tape blocks.\n", tapesize); 486 } else { 487 double fetapes; 488 489 if (blocksperfile) 490 fetapes = (double) tapesize / blocksperfile; 491 else if (cartridge) { 492 /* Estimate number of tapes, assuming streaming stops at 493 the end of each block written, and not in mid-block. 494 Assume no erroneous blocks; this can be compensated 495 for with an artificially low tape size. */ 496 fetapes = 497 ( tapesize /* blocks */ 498 * TP_BSIZE /* bytes/block */ 499 * (1.0/density) /* 0.1" / byte */ 500 + 501 tapesize /* blocks */ 502 * (1.0/ntrec) /* streaming-stops per block */ 503 * 15.48 /* 0.1" / streaming-stop */ 504 ) * (1.0 / tsize ); /* tape / 0.1" */ 505 } else { 506 /* Estimate number of tapes, for old fashioned 9-track 507 tape */ 508 int tenthsperirg = (density == 625) ? 3 : 7; 509 fetapes = 510 ( tapesize /* blocks */ 511 * TP_BSIZE /* bytes / block */ 512 * (1.0/density) /* 0.1" / byte */ 513 + 514 tapesize /* blocks */ 515 * (1.0/ntrec) /* IRG's / block */ 516 * tenthsperirg /* 0.1" / IRG */ 517 ) * (1.0 / tsize ); /* tape / 0.1" */ 518 } 519 etapes = fetapes; /* truncating assignment */ 520 etapes++; 521 /* count the dumped inodes map on each additional tape */ 522 tapesize += (etapes - 1) * 523 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1); 524 tapesize += etapes + 10; /* headers + 10 trailer blks */ 525 msg("estimated %ld tape blocks on %3.2f tape(s).\n", 526 tapesize, fetapes); 527 } 528 /* 529 * If the user only wants an estimate of the number of 530 * tapes, exit now. 531 */ 532 if (just_estimate) 533 exit(0); 534 535 /* 536 * Allocate tape buffer. 537 */ 538 if (!alloctape()) 539 quit("can't allocate tape buffers - try a smaller blocking factor.\n"); 540 541 startnewtape(1); 542 (void)time((time_t *)&(tstart_writing)); 543 xferrate = 0; 544 dumpmap(usedinomap, TS_CLRI, maxino - 1); 545 546 msg("dumping (Pass III) [directories]\n"); 547 dirty = 0; /* XXX just to get gcc to shut up */ 548 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) { 549 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */ 550 dirty = *map++; 551 else 552 dirty >>= 1; 553 if ((dirty & 1) == 0) 554 continue; 555 /* 556 * Skip directory inodes deleted and maybe reallocated 557 */ 558 dp = getino(ino); 559 if ((dp->di_mode & IFMT) != IFDIR) 560 continue; 561 (void)dumpino(dp, ino); 562 } 563 564 msg("dumping (Pass IV) [regular files]\n"); 565 for (map = dumpinomap, ino = 1; ino < maxino; ino++) { 566 int mode; 567 568 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */ 569 dirty = *map++; 570 else 571 dirty >>= 1; 572 if ((dirty & 1) == 0) 573 continue; 574 /* 575 * Skip inodes deleted and reallocated as directories. 576 */ 577 dp = getino(ino); 578 mode = dp->di_mode & IFMT; 579 if (mode == IFDIR) 580 continue; 581 (void)dumpino(dp, ino); 582 } 583 584 spcl.c_type = iswap32(TS_END); 585 for (i = 0; i < ntrec; i++) 586 writeheader(maxino - 1); 587 if (pipeout) 588 msg("%d tape blocks\n",iswap32(spcl.c_tapea)); 589 else 590 msg("%d tape blocks on %d volume%s\n", 591 iswap32(spcl.c_tapea), iswap32(spcl.c_volume), 592 (iswap32(spcl.c_volume) == 1) ? "" : "s"); 593 tnow = do_stats(); 594 date = iswap32(spcl.c_date); 595 msg("Date of this level %c dump: %s", level, 596 spcl.c_date == 0 ? "the epoch\n" : ctime(&date)); 597 msg("Date this dump completed: %s", ctime(&tnow)); 598 msg("Average transfer rate: %d KB/s\n", xferrate / tapeno); 599 putdumptime(); 600 trewind(0); 601 broadcast("DUMP IS DONE!\7\7\n"); 602 msg("DUMP IS DONE\n"); 603 Exit(X_FINOK); 604 /* NOTREACHED */ 605 exit(X_FINOK); /* XXX: to satisfy gcc */ 606 } 607 608 static void 609 usage(void) 610 { 611 612 (void)fprintf(stderr, "%s\n%s\n%s\n%s\n", 613 "usage: dump [-0123456789ceFlnStu] [-B records] [-b blocksize] [-d density]", 614 " [-f file] [-h level] [-k read block size] [-L label]", 615 " [-r read cache size] [-s feet] [-T date] file system", 616 " dump [-W | -w]"); 617 exit(1); 618 } 619 620 /* 621 * Pick up a numeric argument. It must be nonnegative and in the given 622 * range (except that a vmax of 0 means unlimited). 623 */ 624 static long 625 numarg(char *meaning, long vmin, long vmax) 626 { 627 char *p; 628 long val; 629 630 val = strtol(optarg, &p, 10); 631 if (*p) 632 errx(1, "illegal %s -- %s", meaning, optarg); 633 if (val < vmin || (vmax && val > vmax)) 634 errx(1, "%s must be between %ld and %ld", meaning, vmin, vmax); 635 return (val); 636 } 637 638 void 639 sig(int signo) 640 { 641 642 switch(signo) { 643 case SIGALRM: 644 case SIGBUS: 645 case SIGFPE: 646 case SIGHUP: 647 case SIGTERM: 648 case SIGTRAP: 649 if (pipeout) 650 quit("Signal on pipe: cannot recover\n"); 651 msg("Rewriting attempted as response to signal %s.\n", sys_siglist[signo]); 652 (void)fflush(stderr); 653 (void)fflush(stdout); 654 close_rewind(); 655 exit(X_REWRITE); 656 /* NOTREACHED */ 657 case SIGSEGV: 658 msg("SIGSEGV: ABORTING!\n"); 659 (void)signal(SIGSEGV, SIG_DFL); 660 (void)kill(0, SIGSEGV); 661 /* NOTREACHED */ 662 } 663 } 664 665 char * 666 rawname(char *cp) 667 { 668 static char rawbuf[MAXPATHLEN]; 669 char *dp = strrchr(cp, '/'); 670 671 if (dp == NULL) 672 return (NULL); 673 *dp = '\0'; 674 (void)snprintf(rawbuf, sizeof rawbuf, "%s/r%s", cp, dp + 1); 675 *dp = '/'; 676 return (rawbuf); 677 } 678 679 /* 680 * obsolete -- 681 * Change set of key letters and ordered arguments into something 682 * getopt(3) will like. 683 */ 684 static void 685 obsolete(int *argcp, char **argvp[]) 686 { 687 int argc, flags; 688 char *ap, **argv, *flagsp, **nargv, *p; 689 690 /* Setup. */ 691 argv = *argvp; 692 argc = *argcp; 693 694 /* Return if no arguments or first argument has leading dash. */ 695 ap = argv[1]; 696 if (argc == 1 || *ap == '-') 697 return; 698 699 /* Allocate space for new arguments. */ 700 *argvp = nargv = xmalloc((argc + 1) * sizeof(char *)); 701 p = flagsp = xmalloc(strlen(ap) + 2); 702 703 *nargv++ = *argv; 704 argv += 2; 705 706 for (flags = 0; *ap; ++ap) { 707 switch (*ap) { 708 case 'B': 709 case 'b': 710 case 'd': 711 case 'f': 712 case 'h': 713 case 's': 714 case 'T': 715 if (*argv == NULL) { 716 warnx("option requires an argument -- %c", *ap); 717 usage(); 718 } 719 nargv[0] = xmalloc(strlen(*argv) + 2 + 1); 720 nargv[0][0] = '-'; 721 nargv[0][1] = *ap; 722 (void)strcpy(&nargv[0][2], *argv); /* XXX safe strcpy */ 723 ++argv; 724 ++nargv; 725 break; 726 default: 727 if (!flags) { 728 *p++ = '-'; 729 flags = 1; 730 } 731 *p++ = *ap; 732 break; 733 } 734 } 735 736 /* Terminate flags. */ 737 if (flags) { 738 *p = '\0'; 739 *nargv++ = flagsp; 740 } 741 742 /* Copy remaining arguments. */ 743 while ((*nargv++ = *argv++) != NULL) 744 ; 745 746 /* Update argument count. */ 747 *argcp = nargv - *argvp - 1; 748 } 749 750 751 void * 752 xcalloc(size_t number, size_t size) 753 { 754 void *p; 755 756 p = calloc(number, size); 757 if (p == NULL) 758 quit("%s\n", strerror(errno)); 759 return (p); 760 } 761 762 void * 763 xmalloc(size_t size) 764 { 765 void *p; 766 767 p = malloc(size); 768 if (p == NULL) 769 quit("%s\n", strerror(errno)); 770 return (p); 771 } 772 773 char * 774 xstrdup(const char *str) 775 { 776 char *p; 777 778 p = strdup(str); 779 if (p == NULL) 780 quit("%s\n", strerror(errno)); 781 return (p); 782 } 783
Indexes created Mon Sep 22 13:09:51 GMT 2025