main.c revision 1.22
1 /* $NetBSD: main.c,v 1.22 1999/03/23 14:22:59 bouyer 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 1.22 1999/03/23 14:22:59 bouyer 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 #ifndef SBOFF 84 #define SBOFF (SBLOCK * DEV_BSIZE) 85 #endif 86 87 int notify = 0; /* notify operator flag */ 88 int blockswritten = 0; /* number of blocks written on current tape */ 89 int tapeno = 0; /* current tape number */ 90 int density = 0; /* density in bytes/0.1" */ 91 int ntrec = NTREC; /* # tape blocks in each tape record */ 92 int cartridge = 0; /* Assume non-cartridge tape */ 93 long dev_bsize = 1; /* recalculated below */ 94 long blocksperfile = 0; /* output blocks per file */ 95 char *host = NULL; /* remote host (if any) */ 96 int readcache = -1; /* read cache size (in readblksize blks) */ 97 int readblksize = 32 * 1024; /* read block size */ 98 99 int main __P((int, char *[])); 100 static long numarg __P((char *, long, long)); 101 static void obsolete __P((int *, char **[])); 102 static void usage __P((void)); 103 104 int 105 main(argc, argv) 106 int argc; 107 char *argv[]; 108 { 109 ino_t ino; 110 int dirty; 111 struct dinode *dp; 112 struct fstab *dt; 113 char *map; 114 int ch; 115 int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1; 116 ino_t maxino; 117 time_t tnow, date; 118 int dirlist; 119 char *toplevel; 120 int just_estimate = 0; 121 char labelstr[LBLSIZE]; 122 123 spcl.c_date = 0; 124 (void)time((time_t *)&spcl.c_date); 125 126 tsize = 0; /* Default later, based on 'c' option for cart tapes */ 127 if ((tape = getenv("TAPE")) == NULL) 128 tape = _PATH_DEFTAPE; 129 dumpdates = _PATH_DUMPDATES; 130 temp = _PATH_DTMP; 131 strcpy(labelstr, "none"); /* XXX safe strcpy. */ 132 if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0) 133 quit("TP_BSIZE must be a multiple of DEV_BSIZE\n"); 134 level = '0'; 135 136 if (argc < 2) 137 usage(); 138 139 obsolete(&argc, &argv); 140 while ((ch = getopt(argc, argv, 141 "0123456789B:b:cd:f:h:k:L:nr:s:ST:uWw")) != -1) 142 switch (ch) { 143 /* dump level */ 144 case '0': case '1': case '2': case '3': case '4': 145 case '5': case '6': case '7': case '8': case '9': 146 level = ch; 147 break; 148 149 case 'B': /* blocks per output file */ 150 blocksperfile = numarg("blocks per file", 1L, 0L); 151 break; 152 153 case 'b': /* blocks per tape write */ 154 ntrec = numarg("blocks per write", 1L, 1000L); 155 bflag = 1; 156 break; 157 158 case 'c': /* Tape is cart. not 9-track */ 159 cartridge = 1; 160 break; 161 162 case 'd': /* density, in bits per inch */ 163 density = numarg("density", 10L, 327670L) / 10; 164 if (density >= 625 && !bflag) 165 ntrec = HIGHDENSITYTREC; 166 break; 167 168 case 'f': /* output file */ 169 tape = optarg; 170 break; 171 172 case 'h': 173 honorlevel = numarg("honor level", 0L, 10L); 174 break; 175 176 case 'k': 177 readblksize = numarg("read block size", 0, 64) * 1024; 178 break; 179 180 case 'L': 181 /* 182 * Note that although there are LBLSIZE characters, 183 * the last must be '\0', so the limit on strlen() 184 * is really LBLSIZE-1. 185 */ 186 strncpy(labelstr, optarg, LBLSIZE); 187 labelstr[LBLSIZE-1] = '\0'; 188 if (strlen(optarg) > LBLSIZE-1) { 189 msg( 190 "WARNING Label `%s' is larger than limit of %d characters.\n", 191 optarg, LBLSIZE-1); 192 msg("WARNING: Using truncated label `%s'.\n", 193 labelstr); 194 } 195 break; 196 case 'n': /* notify operators */ 197 notify = 1; 198 break; 199 200 case 'r': /* read cache size */ 201 readcache = numarg("read cache size", 0, 512); 202 break; 203 204 case 's': /* tape size, feet */ 205 tsize = numarg("tape size", 1L, 0L) * 12 * 10; 206 break; 207 208 case 'S': /* exit after estimating # of tapes */ 209 just_estimate = 1; 210 break; 211 212 case 'T': /* time of last dump */ 213 spcl.c_ddate = unctime(optarg); 214 if (spcl.c_ddate < 0) { 215 (void)fprintf(stderr, "bad time \"%s\"\n", 216 optarg); 217 exit(X_ABORT); 218 } 219 Tflag = 1; 220 lastlevel = '?'; 221 break; 222 223 case 'u': /* update /etc/dumpdates */ 224 uflag = 1; 225 break; 226 227 case 'W': /* what to do */ 228 case 'w': 229 lastdump(ch); 230 exit(0); /* do nothing else */ 231 232 default: 233 usage(); 234 } 235 argc -= optind; 236 argv += optind; 237 238 if (argc < 1) { 239 (void)fprintf(stderr, "Must specify disk or filesystem\n"); 240 exit(X_ABORT); 241 } 242 243 /* 244 * determine if disk is a subdirectory, and setup appropriately 245 */ 246 dirlist = 0; 247 toplevel = NULL; 248 for (i = 0; i < argc; i++) { 249 struct stat sb; 250 struct statfs fsbuf; 251 252 if (lstat(argv[i], &sb) == -1) { 253 msg("Cannot lstat %s: %s\n", argv[i], strerror(errno)); 254 exit(X_ABORT); 255 } 256 if (!S_ISDIR(sb.st_mode) && !S_ISREG(sb.st_mode)) 257 break; 258 if (statfs(argv[i], &fsbuf) == -1) { 259 msg("Cannot statfs %s: %s\n", argv[i], strerror(errno)); 260 exit(X_ABORT); 261 } 262 if (strcmp(argv[i], fsbuf.f_mntonname) == 0) { 263 if (dirlist != 0) { 264 msg("Can't dump a mountpoint and a filelist\n"); 265 exit(X_ABORT); 266 } 267 break; /* exit if sole mountpoint */ 268 } 269 if (!disk) { 270 if ((toplevel = strdup(fsbuf.f_mntonname)) == NULL) { 271 msg("Cannot malloc diskname\n"); 272 exit(X_ABORT); 273 } 274 disk = toplevel; 275 if (uflag) { 276 msg("Ignoring u flag for subdir dump\n"); 277 uflag = 0; 278 } 279 if (level > '0') { 280 msg("Subdir dump is done at level 0\n"); 281 level = '0'; 282 } 283 msg("Dumping sub files/directories from %s\n", disk); 284 } else { 285 if (strcmp(disk, fsbuf.f_mntonname) != 0) { 286 msg("%s is not on %s\n", argv[i], disk); 287 exit(X_ABORT); 288 } 289 } 290 msg("Dumping file/directory %s\n", argv[i]); 291 dirlist++; 292 } 293 if (dirlist == 0) { 294 disk = *argv++; 295 if (argc != 1) { 296 (void)fprintf(stderr, "Excess arguments to dump:"); 297 while (--argc) 298 (void)fprintf(stderr, " %s", *argv++); 299 (void)fprintf(stderr, "\n"); 300 exit(X_ABORT); 301 } 302 } 303 if (Tflag && uflag) { 304 (void)fprintf(stderr, 305 "You cannot use the T and u flags together.\n"); 306 exit(X_ABORT); 307 } 308 if (strcmp(tape, "-") == 0) { 309 pipeout++; 310 tape = "standard output"; 311 } 312 313 if (blocksperfile) 314 blocksperfile = blocksperfile / ntrec * ntrec; /* round down */ 315 else { 316 /* 317 * Determine how to default tape size and density 318 * 319 * density tape size 320 * 9-track 1600 bpi (160 bytes/.1") 2300 ft. 321 * 9-track 6250 bpi (625 bytes/.1") 2300 ft. 322 * cartridge 8000 bpi (100 bytes/.1") 1700 ft. 323 * (450*4 - slop) 324 */ 325 if (density == 0) 326 density = cartridge ? 100 : 160; 327 if (tsize == 0) 328 tsize = cartridge ? 1700L*120L : 2300L*120L; 329 } 330 331 if (strchr(tape, ':')) { 332 host = tape; 333 tape = strchr(host, ':'); 334 *tape++ = '\0'; 335 #ifdef RDUMP 336 if (rmthost(host) == 0) 337 exit(X_ABORT); 338 #else 339 (void)fprintf(stderr, "remote dump not enabled\n"); 340 exit(X_ABORT); 341 #endif 342 } 343 344 if (signal(SIGHUP, SIG_IGN) != SIG_IGN) 345 signal(SIGHUP, sig); 346 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN) 347 signal(SIGTRAP, sig); 348 if (signal(SIGFPE, SIG_IGN) != SIG_IGN) 349 signal(SIGFPE, sig); 350 if (signal(SIGBUS, SIG_IGN) != SIG_IGN) 351 signal(SIGBUS, sig); 352 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN) 353 signal(SIGSEGV, sig); 354 if (signal(SIGTERM, SIG_IGN) != SIG_IGN) 355 signal(SIGTERM, sig); 356 if (signal(SIGINT, interrupt) == SIG_IGN) 357 signal(SIGINT, SIG_IGN); 358 359 set_operators(); /* /etc/group snarfed */ 360 getfstab(); /* /etc/fstab snarfed */ 361 362 /* 363 * disk can be either the full special file name, 364 * the suffix of the special file name, 365 * the special name missing the leading '/', 366 * the file system name with or without the leading '/'. 367 */ 368 dt = fstabsearch(disk); 369 if (dt != NULL) { 370 disk = rawname(dt->fs_spec); 371 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN); 372 if (dirlist != 0) 373 (void)snprintf(spcl.c_filesys, NAMELEN, 374 "a subset of %s", dt->fs_file); 375 else 376 (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN); 377 } else { 378 (void)strncpy(spcl.c_dev, disk, NAMELEN); 379 (void)strncpy(spcl.c_filesys, "an unlisted file system", 380 NAMELEN); 381 } 382 (void)strncpy(spcl.c_label, labelstr, sizeof(spcl.c_label) - 1); 383 (void)gethostname(spcl.c_host, NAMELEN); 384 spcl.c_host[sizeof(spcl.c_host) - 1] = '\0'; 385 386 if ((diskfd = open(disk, O_RDONLY)) < 0) { 387 msg("Cannot open %s\n", disk); 388 exit(X_ABORT); 389 } 390 sync(); 391 sblock = (struct fs *)sblock_buf; 392 rawread(SBOFF, (char *) sblock, SBSIZE); 393 if (sblock->fs_magic != FS_MAGIC) { 394 if (sblock->fs_magic == bswap32(FS_MAGIC)) { 395 ffs_sb_swap(sblock, sblock, 0); 396 needswap = 1; 397 } else 398 quit("bad sblock magic number\n"); 399 } 400 401 spcl.c_level = iswap32(level - '0'); 402 spcl.c_type = iswap32(TS_TAPE); 403 spcl.c_date = iswap32(spcl.c_date); 404 spcl.c_ddate = iswap32(spcl.c_ddate); 405 if (!Tflag) 406 getdumptime(); /* /etc/dumpdates snarfed */ 407 408 date = iswap32(spcl.c_date); 409 msg("Date of this level %c dump: %s", level, 410 spcl.c_date == 0 ? "the epoch\n" : ctime(&date)); 411 date = iswap32(spcl.c_ddate); 412 msg("Date of last level %c dump: %s", lastlevel, 413 spcl.c_ddate == 0 ? "the epoch\n" : ctime(&date)); 414 msg("Dumping "); 415 if (dt != NULL && dirlist != 0) 416 msgtail("a subset of "); 417 msgtail("%s (%s) ", disk, spcl.c_filesys); 418 if (host) 419 msgtail("to %s on host %s\n", tape, host); 420 else 421 msgtail("to %s\n", tape); 422 msg("Label: %s\n", labelstr); 423 424 dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1); 425 dev_bshift = ffs(dev_bsize) - 1; 426 if (dev_bsize != (1 << dev_bshift)) 427 quit("dev_bsize (%d) is not a power of 2", dev_bsize); 428 tp_bshift = ffs(TP_BSIZE) - 1; 429 if (TP_BSIZE != (1 << tp_bshift)) 430 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE); 431 #ifdef FS_44INODEFMT 432 if (sblock->fs_inodefmt >= FS_44INODEFMT) { 433 spcl.c_flags = iswap32(iswap32(spcl.c_flags) | DR_NEWINODEFMT); 434 } else { 435 /* 436 * Determine parameters for older filesystems. From 437 * /sys/ufs/ffs/ffs_vfsops.c::ffs_oldfscompat() 438 * 439 * XXX: not sure if other variables (fs_npsect, fs_interleave, 440 * fs_nrpos, fs_maxfilesize) need to be fudged too. 441 */ 442 sblock->fs_qbmask = ~sblock->fs_bmask; 443 sblock->fs_qfmask = ~sblock->fs_fmask; 444 } 445 #endif 446 maxino = sblock->fs_ipg * sblock->fs_ncg; 447 mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE); 448 usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char)); 449 dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char)); 450 dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char)); 451 tapesize = 3 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1); 452 453 nonodump = iswap32(spcl.c_level) < honorlevel; 454 455 initcache(readcache, readblksize); 456 457 (void)signal(SIGINFO, statussig); 458 459 msg("mapping (Pass I) [regular files]\n"); 460 anydirskipped = mapfiles(maxino, &tapesize, toplevel, 461 (dirlist ? argv : NULL)); 462 463 msg("mapping (Pass II) [directories]\n"); 464 while (anydirskipped) { 465 anydirskipped = mapdirs(maxino, &tapesize); 466 } 467 468 if (pipeout) { 469 tapesize += 10; /* 10 trailer blocks */ 470 msg("estimated %ld tape blocks.\n", tapesize); 471 } else { 472 double fetapes; 473 474 if (blocksperfile) 475 fetapes = (double) tapesize / blocksperfile; 476 else if (cartridge) { 477 /* Estimate number of tapes, assuming streaming stops at 478 the end of each block written, and not in mid-block. 479 Assume no erroneous blocks; this can be compensated 480 for with an artificially low tape size. */ 481 fetapes = 482 ( tapesize /* blocks */ 483 * TP_BSIZE /* bytes/block */ 484 * (1.0/density) /* 0.1" / byte */ 485 + 486 tapesize /* blocks */ 487 * (1.0/ntrec) /* streaming-stops per block */ 488 * 15.48 /* 0.1" / streaming-stop */ 489 ) * (1.0 / tsize ); /* tape / 0.1" */ 490 } else { 491 /* Estimate number of tapes, for old fashioned 9-track 492 tape */ 493 int tenthsperirg = (density == 625) ? 3 : 7; 494 fetapes = 495 ( tapesize /* blocks */ 496 * TP_BSIZE /* bytes / block */ 497 * (1.0/density) /* 0.1" / byte */ 498 + 499 tapesize /* blocks */ 500 * (1.0/ntrec) /* IRG's / block */ 501 * tenthsperirg /* 0.1" / IRG */ 502 ) * (1.0 / tsize ); /* tape / 0.1" */ 503 } 504 etapes = fetapes; /* truncating assignment */ 505 etapes++; 506 /* count the dumped inodes map on each additional tape */ 507 tapesize += (etapes - 1) * 508 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1); 509 tapesize += etapes + 10; /* headers + 10 trailer blks */ 510 msg("estimated %ld tape blocks on %3.2f tape(s).\n", 511 tapesize, fetapes); 512 } 513 /* 514 * If the user only wants an estimate of the number of 515 * tapes, exit now. 516 */ 517 if (just_estimate) 518 exit(0); 519 520 /* 521 * Allocate tape buffer. 522 */ 523 if (!alloctape()) 524 quit("can't allocate tape buffers - try a smaller blocking factor.\n"); 525 526 startnewtape(1); 527 (void)time((time_t *)&(tstart_writing)); 528 xferrate = 0; 529 dumpmap(usedinomap, TS_CLRI, maxino - 1); 530 531 msg("dumping (Pass III) [directories]\n"); 532 dirty = 0; /* XXX just to get gcc to shut up */ 533 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) { 534 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */ 535 dirty = *map++; 536 else 537 dirty >>= 1; 538 if ((dirty & 1) == 0) 539 continue; 540 /* 541 * Skip directory inodes deleted and maybe reallocated 542 */ 543 dp = getino(ino); 544 if ((dp->di_mode & IFMT) != IFDIR) 545 continue; 546 (void)dumpino(dp, ino); 547 } 548 549 msg("dumping (Pass IV) [regular files]\n"); 550 for (map = dumpinomap, ino = 1; ino < maxino; ino++) { 551 int mode; 552 553 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */ 554 dirty = *map++; 555 else 556 dirty >>= 1; 557 if ((dirty & 1) == 0) 558 continue; 559 /* 560 * Skip inodes deleted and reallocated as directories. 561 */ 562 dp = getino(ino); 563 mode = dp->di_mode & IFMT; 564 if (mode == IFDIR) 565 continue; 566 (void)dumpino(dp, ino); 567 } 568 569 spcl.c_type = iswap32(TS_END); 570 for (i = 0; i < ntrec; i++) 571 writeheader(maxino - 1); 572 if (pipeout) 573 msg("%ld tape blocks\n",iswap32(spcl.c_tapea)); 574 else 575 msg("%ld tape blocks on %d volume%s\n", 576 iswap32(spcl.c_tapea), iswap32(spcl.c_volume), 577 (iswap32(spcl.c_volume) == 1) ? "" : "s"); 578 tnow = do_stats(); 579 date = iswap32(spcl.c_date); 580 msg("Date of this level %c dump: %s", level, 581 spcl.c_date == 0 ? "the epoch\n" : ctime(&date)); 582 msg("Date this dump completed: %s", ctime(&tnow)); 583 msg("Average transfer rate: %ld KB/s\n", xferrate / tapeno); 584 putdumptime(); 585 trewind(); 586 broadcast("DUMP IS DONE!\7\7\n"); 587 msg("DUMP IS DONE\n"); 588 Exit(X_FINOK); 589 /* NOTREACHED */ 590 exit(X_FINOK); /* XXX: to satisfy gcc */ 591 } 592 593 static void 594 usage() 595 { 596 597 (void)fprintf(stderr, "%s\n%s\n%s\n%s\n", 598 "usage: dump [-0123456789cnu] [-B records] [-b blocksize] [-d density]", 599 " [-f file] [-h level] [-k read block size] [-L label]", 600 " [-r read cache size] [-s feet] [-T date] filesystem", 601 " dump [-W | -w]"); 602 exit(1); 603 } 604 605 /* 606 * Pick up a numeric argument. It must be nonnegative and in the given 607 * range (except that a vmax of 0 means unlimited). 608 */ 609 static long 610 numarg(meaning, vmin, vmax) 611 char *meaning; 612 long vmin, vmax; 613 { 614 char *p; 615 long val; 616 617 val = strtol(optarg, &p, 10); 618 if (*p) 619 errx(1, "illegal %s -- %s", meaning, optarg); 620 if (val < vmin || (vmax && val > vmax)) 621 errx(1, "%s must be between %ld and %ld", meaning, vmin, vmax); 622 return (val); 623 } 624 625 void 626 sig(signo) 627 int signo; 628 { 629 switch(signo) { 630 case SIGALRM: 631 case SIGBUS: 632 case SIGFPE: 633 case SIGHUP: 634 case SIGTERM: 635 case SIGTRAP: 636 if (pipeout) 637 quit("Signal on pipe: cannot recover\n"); 638 msg("Rewriting attempted as response to unknown signal.\n"); 639 (void)fflush(stderr); 640 (void)fflush(stdout); 641 close_rewind(); 642 exit(X_REWRITE); 643 /* NOTREACHED */ 644 case SIGSEGV: 645 msg("SIGSEGV: ABORTING!\n"); 646 (void)signal(SIGSEGV, SIG_DFL); 647 (void)kill(0, SIGSEGV); 648 /* NOTREACHED */ 649 } 650 } 651 652 char * 653 rawname(cp) 654 char *cp; 655 { 656 static char rawbuf[MAXPATHLEN]; 657 char *dp = strrchr(cp, '/'); 658 659 if (dp == NULL) 660 return (NULL); 661 *dp = '\0'; 662 (void)snprintf(rawbuf, sizeof rawbuf, "%s/r%s", cp, dp + 1); 663 *dp = '/'; 664 return (rawbuf); 665 } 666 667 /* 668 * obsolete -- 669 * Change set of key letters and ordered arguments into something 670 * getopt(3) will like. 671 */ 672 static void 673 obsolete(argcp, argvp) 674 int *argcp; 675 char **argvp[]; 676 { 677 int argc, flags; 678 char *ap, **argv, *flagsp, **nargv, *p; 679 680 /* Setup. */ 681 argv = *argvp; 682 argc = *argcp; 683 684 /* Return if no arguments or first argument has leading dash. */ 685 ap = argv[1]; 686 if (argc == 1 || *ap == '-') 687 return; 688 689 /* Allocate space for new arguments. */ 690 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 691 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 692 err(1, "malloc"); 693 694 *nargv++ = *argv; 695 argv += 2; 696 697 for (flags = 0; *ap; ++ap) { 698 switch (*ap) { 699 case 'B': 700 case 'b': 701 case 'd': 702 case 'f': 703 case 'h': 704 case 's': 705 case 'T': 706 if (*argv == NULL) { 707 warnx("option requires an argument -- %c", *ap); 708 usage(); 709 } 710 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 711 err(1, "malloc"); 712 nargv[0][0] = '-'; 713 nargv[0][1] = *ap; 714 (void)strcpy(&nargv[0][2], *argv); /* XXX safe strcpy */ 715 ++argv; 716 ++nargv; 717 break; 718 default: 719 if (!flags) { 720 *p++ = '-'; 721 flags = 1; 722 } 723 *p++ = *ap; 724 break; 725 } 726 } 727 728 /* Terminate flags. */ 729 if (flags) { 730 *p = '\0'; 731 *nargv++ = flagsp; 732 } 733 734 /* Copy remaining arguments. */ 735 while ((*nargv++ = *argv++) != NULL) 736 ; 737 738 /* Update argument count. */ 739 *argcp = nargv - *argvp - 1; 740 } 741
Indexes created Tue Sep 23 14:10:03 GMT 2025