main.c revision 1.48
1 /* $NetBSD: main.c,v 1.48 2001/12/25 12:06:26 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 1.48 2001/12/25 12:06:26 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 gid_t egid; /* Retain tty privs for notification */ 77 int timestamp; /* print message timestamps */ 78 int notify; /* notify operator flag */ 79 int blockswritten; /* number of blocks written on current tape */ 80 int tapeno; /* current tape number */ 81 int density; /* density in bytes/0.1" */ 82 int ntrec = NTREC; /* # tape blocks in each tape record */ 83 int cartridge; /* Assume non-cartridge tape */ 84 long dev_bsize = 1; /* recalculated below */ 85 long blocksperfile; /* output blocks per file */ 86 char *host; /* remote host (if any) */ 87 int readcache = -1; /* read cache size (in readblksize blks) */ 88 int readblksize = 32 * 1024; /* read block size */ 89 char default_time_string[] = "%T %Z"; /* default timestamp string */ 90 char *time_string = default_time_string; /* timestamp string */ 91 92 int main(int, char *[]); 93 static long numarg(char *, long, long); 94 static void obsolete(int *, char **[]); 95 static void usage(void); 96 97 int 98 main(int argc, char *argv[]) 99 { 100 ino_t ino; 101 int dirty; 102 struct dinode *dp; 103 struct fstab *dt; 104 struct statfs *mntinfo, fsbuf; 105 char *map; 106 int ch; 107 int i, anydirskipped, bflag = 0, Tflag = 0, Fflag = 0, honorlevel = 1; 108 ino_t maxino; 109 time_t tnow, date; 110 int dirc; 111 char *mountpoint; 112 int just_estimate = 0; 113 char labelstr[LBLSIZE]; 114 char *new_time_format; 115 116 spcl.c_date = 0; 117 (void)time(&tnow); 118 spcl.c_date = tnow; 119 tzset(); /* set up timezone for strftime */ 120 if ((new_time_format = getenv("TIMEFORMAT")) != NULL) 121 time_string = new_time_format; 122 123 /* Save setgid bit for use later */ 124 egid = getegid(); 125 setegid(getgid()); 126 127 tsize = 0; /* Default later, based on 'c' option for cart tapes */ 128 if ((tape = getenv("TAPE")) == NULL) 129 tape = _PATH_DEFTAPE; 130 dumpdates = _PATH_DUMPDATES; 131 temp = _PATH_DTMP; 132 strcpy(labelstr, "none"); /* XXX safe strcpy. */ 133 if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0) 134 quit("TP_BSIZE must be a multiple of DEV_BSIZE\n"); 135 level = '0'; 136 timestamp = 0; 137 138 if (argc < 2) 139 usage(); 140 141 obsolete(&argc, &argv); 142 while ((ch = getopt(argc, argv, 143 "0123456789B:b:cd:eFf:h:k:lL:nr:s:StT:uWw")) != -1) 144 switch (ch) { 145 /* dump level */ 146 case '0': case '1': case '2': case '3': case '4': 147 case '5': case '6': case '7': case '8': case '9': 148 level = ch; 149 break; 150 151 case 'B': /* blocks per output file */ 152 blocksperfile = numarg("blocks per file", 1L, 0L); 153 break; 154 155 case 'b': /* blocks per tape write */ 156 ntrec = numarg("blocks per write", 1L, 1000L); 157 bflag = 1; 158 break; 159 160 case 'c': /* Tape is cart. not 9-track */ 161 cartridge = 1; 162 break; 163 164 case 'd': /* density, in bits per inch */ 165 density = numarg("density", 10L, 327670L) / 10; 166 if (density >= 625 && !bflag) 167 ntrec = HIGHDENSITYTREC; 168 break; 169 170 case 'e': /* eject full tapes */ 171 eflag = 1; 172 break; 173 174 case 'F': /* files-to-dump is an fs image */ 175 Fflag = 1; 176 break; 177 178 case 'f': /* output file */ 179 tape = optarg; 180 break; 181 182 case 'h': 183 honorlevel = numarg("honor level", 0L, 10L); 184 break; 185 186 case 'k': 187 readblksize = numarg("read block size", 0, 64) * 1024; 188 break; 189 190 case 'l': /* autoload after eject full tapes */ 191 eflag = 1; 192 lflag = 1; 193 break; 194 195 case 'L': 196 /* 197 * Note that although there are LBLSIZE characters, 198 * the last must be '\0', so the limit on strlen() 199 * is really LBLSIZE-1. 200 */ 201 strncpy(labelstr, optarg, LBLSIZE); 202 labelstr[LBLSIZE-1] = '\0'; 203 if (strlen(optarg) > LBLSIZE-1) { 204 msg( 205 "WARNING Label `%s' is larger than limit of %d characters.\n", 206 optarg, LBLSIZE-1); 207 msg("WARNING: Using truncated label `%s'.\n", 208 labelstr); 209 } 210 break; 211 case 'n': /* notify operators */ 212 notify = 1; 213 break; 214 215 case 'r': /* read cache size */ 216 readcache = numarg("read cache size", 0, 512); 217 break; 218 219 case 's': /* tape size, feet */ 220 tsize = numarg("tape size", 1L, 0L) * 12 * 10; 221 break; 222 223 case 'S': /* exit after estimating # of tapes */ 224 just_estimate = 1; 225 break; 226 227 case 't': 228 timestamp = 1; 229 break; 230 231 case 'T': /* time of last dump */ 232 spcl.c_ddate = unctime(optarg); 233 if (spcl.c_ddate < 0) { 234 (void)fprintf(stderr, "bad time \"%s\"\n", 235 optarg); 236 exit(X_STARTUP); 237 } 238 Tflag = 1; 239 lastlevel = '?'; 240 break; 241 242 case 'u': /* update /etc/dumpdates */ 243 uflag = 1; 244 break; 245 246 case 'W': /* what to do */ 247 case 'w': 248 lastdump(ch); 249 exit(X_FINOK); /* do nothing else */ 250 251 default: 252 usage(); 253 } 254 argc -= optind; 255 argv += optind; 256 257 if (argc < 1) { 258 (void)fprintf(stderr, 259 "Must specify disk or image, or file list\n"); 260 exit(X_STARTUP); 261 } 262 263 264 /* 265 * determine if disk is a subdirectory, and setup appropriately 266 */ 267 getfstab(); /* /etc/fstab snarfed */ 268 disk = NULL; 269 mountpoint = NULL; 270 dirc = 0; 271 for (i = 0; i < argc; i++) { 272 struct stat sb; 273 274 if (lstat(argv[i], &sb) == -1) 275 quit("Cannot stat %s: %s\n", argv[i], strerror(errno)); 276 if (Fflag || S_ISCHR(sb.st_mode) || S_ISBLK(sb.st_mode)) { 277 disk = argv[i]; 278 multicheck: 279 if (dirc != 0) 280 quit( 281 "Can't dump a disk or image at the same time as a file list\n"); 282 break; 283 } 284 if ((dt = fstabsearch(argv[i])) != NULL) { 285 disk = dt->fs_spec; 286 mountpoint = xstrdup(dt->fs_file); 287 goto multicheck; 288 } 289 if (statfs(argv[i], &fsbuf) == -1) 290 quit("Cannot statfs %s: %s\n", argv[i], 291 strerror(errno)); 292 disk = fsbuf.f_mntfromname; 293 if (strcmp(argv[i], fsbuf.f_mntonname) == 0) 294 goto multicheck; 295 if (mountpoint == NULL) { 296 mountpoint = xstrdup(fsbuf.f_mntonname); 297 if (uflag) { 298 msg("Ignoring u flag for subdir dump\n"); 299 uflag = 0; 300 } 301 if (level > '0') { 302 msg("Subdir dump is done at level 0\n"); 303 level = '0'; 304 } 305 msg("Dumping sub files/directories from %s\n", 306 mountpoint); 307 } else { 308 if (strcmp(mountpoint, fsbuf.f_mntonname) != 0) 309 quit("%s is not on %s\n", argv[i], mountpoint); 310 } 311 msg("Dumping file/directory %s\n", argv[i]); 312 dirc++; 313 } 314 if (mountpoint) 315 free(mountpoint); 316 317 if (dirc == 0) { 318 argv++; 319 if (argc != 1) { 320 (void)fprintf(stderr, "Excess arguments to dump:"); 321 while (--argc) 322 (void)fprintf(stderr, " %s", *argv++); 323 (void)fprintf(stderr, "\n"); 324 exit(X_STARTUP); 325 } 326 } 327 if (Tflag && uflag) { 328 (void)fprintf(stderr, 329 "You cannot use the T and u flags together.\n"); 330 exit(X_STARTUP); 331 } 332 if (strcmp(tape, "-") == 0) { 333 pipeout++; 334 tape = "standard output"; 335 } 336 337 if (blocksperfile) 338 blocksperfile = blocksperfile / ntrec * ntrec; /* round down */ 339 else { 340 /* 341 * Determine how to default tape size and density 342 * 343 * density tape size 344 * 9-track 1600 bpi (160 bytes/.1") 2300 ft. 345 * 9-track 6250 bpi (625 bytes/.1") 2300 ft. 346 * cartridge 8000 bpi (100 bytes/.1") 1700 ft. 347 * (450*4 - slop) 348 */ 349 if (density == 0) 350 density = cartridge ? 100 : 160; 351 if (tsize == 0) 352 tsize = cartridge ? 1700L*120L : 2300L*120L; 353 } 354 355 if (strchr(tape, ':')) { 356 host = tape; 357 tape = strchr(host, ':'); 358 *tape++ = '\0'; 359 #ifdef RDUMP 360 if (rmthost(host) == 0) 361 exit(X_STARTUP); 362 #else 363 (void)fprintf(stderr, "remote dump not enabled\n"); 364 exit(X_STARTUP); 365 #endif 366 } 367 368 if (signal(SIGHUP, SIG_IGN) != SIG_IGN) 369 signal(SIGHUP, sig); 370 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN) 371 signal(SIGTRAP, sig); 372 if (signal(SIGFPE, SIG_IGN) != SIG_IGN) 373 signal(SIGFPE, sig); 374 if (signal(SIGBUS, SIG_IGN) != SIG_IGN) 375 signal(SIGBUS, sig); 376 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN) 377 signal(SIGSEGV, sig); 378 if (signal(SIGTERM, SIG_IGN) != SIG_IGN) 379 signal(SIGTERM, sig); 380 if (signal(SIGINT, interrupt) == SIG_IGN) 381 signal(SIGINT, SIG_IGN); 382 383 set_operators(); /* /etc/group snarfed */ 384 385 /* 386 * disk can be either the full special file name, or 387 * the file system name. 388 */ 389 mountpoint = NULL; 390 if ((dt = fstabsearch(disk)) != NULL) { 391 disk = rawname(dt->fs_spec); 392 mountpoint = dt->fs_file; 393 msg("Found %s on %s in %s\n", disk, mountpoint, _PATH_FSTAB); 394 } else if ((mntinfo = mntinfosearch(disk)) != NULL) { 395 disk = rawname(mntinfo->f_mntfromname); 396 mountpoint = mntinfo->f_mntonname; 397 msg("Found %s on %s in mount table\n", disk, mountpoint); 398 } 399 if (mountpoint != NULL) { 400 if (dirc != 0) 401 (void)snprintf(spcl.c_filesys, NAMELEN, 402 "a subset of %s", mountpoint); 403 else 404 (void)strncpy(spcl.c_filesys, mountpoint, NAMELEN); 405 } else if (Fflag) { 406 (void)strncpy(spcl.c_filesys, "a file system image", NAMELEN); 407 } else { 408 (void)strncpy(spcl.c_filesys, "an unlisted file system", 409 NAMELEN); 410 } 411 (void)strncpy(spcl.c_dev, disk, NAMELEN); 412 (void)strncpy(spcl.c_label, labelstr, sizeof(spcl.c_label) - 1); 413 (void)gethostname(spcl.c_host, NAMELEN); 414 spcl.c_host[sizeof(spcl.c_host) - 1] = '\0'; 415 416 if ((diskfd = open(disk, O_RDONLY)) < 0) { 417 msg("Cannot open %s\n", disk); 418 exit(X_STARTUP); 419 } 420 sync(); 421 422 needswap = fs_read_sblock(sblock_buf); 423 424 spcl.c_level = iswap32(level - '0'); 425 spcl.c_type = iswap32(TS_TAPE); 426 spcl.c_date = iswap32(spcl.c_date); 427 spcl.c_ddate = iswap32(spcl.c_ddate); 428 if (!Tflag) 429 getdumptime(); /* /etc/dumpdates snarfed */ 430 431 date = iswap32(spcl.c_date); 432 msg("Date of this level %c dump: %s", level, 433 spcl.c_date == 0 ? "the epoch\n" : ctime(&date)); 434 date = iswap32(spcl.c_ddate); 435 msg("Date of last level %c dump: %s", lastlevel, 436 spcl.c_ddate == 0 ? "the epoch\n" : ctime(&date)); 437 msg("Dumping "); 438 if (dirc != 0) 439 msgtail("a subset of "); 440 msgtail("%s (%s) ", disk, spcl.c_filesys); 441 if (host) 442 msgtail("to %s on host %s\n", tape, host); 443 else 444 msgtail("to %s\n", tape); 445 msg("Label: %s\n", labelstr); 446 447 ufsib = fs_parametrize(); 448 449 dev_bshift = ffs(dev_bsize) - 1; 450 if (dev_bsize != (1 << dev_bshift)) 451 quit("dev_bsize (%ld) is not a power of 2", dev_bsize); 452 tp_bshift = ffs(TP_BSIZE) - 1; 453 if (TP_BSIZE != (1 << tp_bshift)) 454 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE); 455 maxino = fs_maxino(); 456 mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE); 457 usedinomap = (char *)xcalloc((unsigned) mapsize, sizeof(char)); 458 dumpdirmap = (char *)xcalloc((unsigned) mapsize, sizeof(char)); 459 dumpinomap = (char *)xcalloc((unsigned) mapsize, sizeof(char)); 460 tapesize = 3 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1); 461 462 nonodump = iswap32(spcl.c_level) < honorlevel; 463 464 initcache(readcache, readblksize); 465 466 (void)signal(SIGINFO, statussig); 467 468 msg("mapping (Pass I) [regular files]\n"); 469 anydirskipped = mapfiles(maxino, &tapesize, mountpoint, 470 (dirc ? argv : NULL)); 471 472 msg("mapping (Pass II) [directories]\n"); 473 while (anydirskipped) { 474 anydirskipped = mapdirs(maxino, &tapesize); 475 } 476 477 if (pipeout) { 478 tapesize += 10; /* 10 trailer blocks */ 479 msg("estimated %ld tape blocks.\n", tapesize); 480 } else { 481 double fetapes; 482 483 if (blocksperfile) 484 fetapes = (double) tapesize / blocksperfile; 485 else if (cartridge) { 486 /* Estimate number of tapes, assuming streaming stops at 487 the end of each block written, and not in mid-block. 488 Assume no erroneous blocks; this can be compensated 489 for with an artificially low tape size. */ 490 fetapes = 491 ( (double) tapesize /* blocks */ 492 * TP_BSIZE /* bytes/block */ 493 * (1.0/density) /* 0.1" / byte */ 494 + 495 (double) tapesize /* blocks */ 496 * (1.0/ntrec) /* streaming-stops per block */ 497 * 15.48 /* 0.1" / streaming-stop */ 498 ) * (1.0 / tsize ); /* tape / 0.1" */ 499 } else { 500 /* Estimate number of tapes, for old fashioned 9-track 501 tape */ 502 int tenthsperirg = (density == 625) ? 3 : 7; 503 fetapes = 504 ( tapesize /* blocks */ 505 * TP_BSIZE /* bytes / block */ 506 * (1.0/density) /* 0.1" / byte */ 507 + 508 tapesize /* blocks */ 509 * (1.0/ntrec) /* IRG's / block */ 510 * tenthsperirg /* 0.1" / IRG */ 511 ) * (1.0 / tsize ); /* tape / 0.1" */ 512 } 513 etapes = fetapes; /* truncating assignment */ 514 etapes++; 515 /* count the dumped inodes map on each additional tape */ 516 tapesize += (etapes - 1) * 517 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1); 518 tapesize += etapes + 10; /* headers + 10 trailer blks */ 519 msg("estimated %ld tape blocks on %3.2f tape(s).\n", 520 tapesize, fetapes); 521 } 522 /* 523 * If the user only wants an estimate of the number of 524 * tapes, exit now. 525 */ 526 if (just_estimate) 527 exit(X_FINOK); 528 529 /* 530 * Allocate tape buffer. 531 */ 532 if (!alloctape()) 533 quit("can't allocate tape buffers - try a smaller blocking factor.\n"); 534 535 startnewtape(1); 536 (void)time((time_t *)&(tstart_writing)); 537 xferrate = 0; 538 dumpmap(usedinomap, TS_CLRI, maxino - 1); 539 540 msg("dumping (Pass III) [directories]\n"); 541 dirty = 0; /* XXX just to get gcc to shut up */ 542 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) { 543 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */ 544 dirty = *map++; 545 else 546 dirty >>= 1; 547 if ((dirty & 1) == 0) 548 continue; 549 /* 550 * Skip directory inodes deleted and maybe reallocated 551 */ 552 dp = getino(ino); 553 if ((dp->di_mode & IFMT) != IFDIR) 554 continue; 555 (void)dumpino(dp, ino); 556 } 557 558 msg("dumping (Pass IV) [regular files]\n"); 559 for (map = dumpinomap, ino = 1; ino < maxino; ino++) { 560 int mode; 561 562 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */ 563 dirty = *map++; 564 else 565 dirty >>= 1; 566 if ((dirty & 1) == 0) 567 continue; 568 /* 569 * Skip inodes deleted and reallocated as directories. 570 */ 571 dp = getino(ino); 572 mode = dp->di_mode & IFMT; 573 if (mode == IFDIR) 574 continue; 575 (void)dumpino(dp, ino); 576 } 577 578 spcl.c_type = iswap32(TS_END); 579 for (i = 0; i < ntrec; i++) 580 writeheader(maxino - 1); 581 if (pipeout) 582 msg("%d tape blocks\n",iswap32(spcl.c_tapea)); 583 else 584 msg("%d tape blocks on %d volume%s\n", 585 iswap32(spcl.c_tapea), iswap32(spcl.c_volume), 586 (iswap32(spcl.c_volume) == 1) ? "" : "s"); 587 tnow = do_stats(); 588 date = iswap32(spcl.c_date); 589 msg("Date of this level %c dump: %s", level, 590 spcl.c_date == 0 ? "the epoch\n" : ctime(&date)); 591 msg("Date this dump completed: %s", ctime(&tnow)); 592 msg("Average transfer rate: %d KB/s\n", xferrate / tapeno); 593 putdumptime(); 594 trewind(0); 595 broadcast("DUMP IS DONE!\a\a\n"); 596 msg("DUMP IS DONE\n"); 597 Exit(X_FINOK); 598 /* NOTREACHED */ 599 exit(X_FINOK); /* XXX: to satisfy gcc */ 600 } 601 602 static void 603 usage(void) 604 { 605 606 (void)fprintf(stderr, "%s\n%s\n%s\n%s\n", 607 "usage: dump [-0123456789ceFlnStu] [-B records] [-b blocksize] [-d density]", 608 " [-f file] [-h level] [-k read block size] [-L label]", 609 " [-r read cache size] [-s feet] [-T date] file system", 610 " dump [-W | -w]"); 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 Tue Sep 23 14:10:03 GMT 2025