1 /*- 2 * Copyright (c) 1980, 1991, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 static const char copyright[] = 36 "@(#) Copyright (c) 1980, 1991, 1993, 1994\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 #if 0 42 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/1/95"; 43 #endif 44 static const char rcsid[] = 45 "$FreeBSD$"; 46 #endif /* not lint */ 47 48 #include <sys/param.h> 49 #include <sys/stat.h> 50 #include <sys/time.h> 51 #include <sys/mount.h> 52 #include <sys/disklabel.h> 53 54 #include <ufs/ufs/dinode.h> 55 #include <ufs/ufs/ufsmount.h> 56 #include <ufs/ffs/fs.h> 57 58 #include <protocols/dumprestore.h> 59 60 #include <ctype.h> 61 #include <err.h> 62 #include <errno.h> 63 #include <fcntl.h> 64 #include <fstab.h> 65 #include <inttypes.h> 66 #include <limits.h> 67 #include <signal.h> 68 #include <stdio.h> 69 #include <stdlib.h> 70 #include <string.h> 71 #include <timeconv.h> 72 #include <unistd.h> 73 74 #include "dump.h" 75 #include "pathnames.h" 76 77 int notify = 0; /* notify operator flag */ 78 int snapdump = 0; /* dumping live filesystem, so use snapshot */ 79 int blockswritten = 0; /* number of blocks written on current tape */ 80 int tapeno = 0; /* current tape number */ 81 int density = 0; /* density in bytes/0.1" " <- this is for hilit19 */ 82 int ntrec = NTREC; /* # tape blocks in each tape record */ 83 int cartridge = 0; /* Assume non-cartridge tape */ 84 int dokerberos = 0; /* Use Kerberos authentication */ 85 int cachesize = 0; /* block cache size (in bytes), defaults to 0 */ 86 long dev_bsize = 1; /* recalculated below */ 87 long blocksperfile; /* output blocks per file */ 88 char *host = NULL; /* remote host (if any) */ 89 90 /* 91 * Possible superblock locations ordered from most to least likely. 92 */ 93 static int sblock_try[] = SBLOCKSEARCH; 94 95 static char *getmntpt(char *, int *); 96 static long numarg(const char *, long, long); 97 static void obsolete(int *, char **[]); 98 static void usage(void) __dead2; 99 100 int 101 main(int argc, char *argv[]) 102 { 103 struct stat sb; 104 ino_t ino; 105 int dirty; 106 union dinode *dp; 107 struct fstab *dt; 108 char *map, *mntpt; 109 int ch, mode, mntflags; 110 int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1; 111 int just_estimate = 0; 112 ino_t maxino; 113 char *tmsg; 114 115 spcl.c_date = _time_to_time64(time(NULL)); 116 117 tsize = 0; /* Default later, based on 'c' option for cart tapes */ 118 if ((tape = getenv("TAPE")) == NULL) 119 tape = _PATH_DEFTAPE; 120 dumpdates = _PATH_DUMPDATES; 121 temp = _PATH_DTMP; 122 if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0) 123 quit("TP_BSIZE must be a multiple of DEV_BSIZE\n"); 124 level = '0'; 125 126 if (argc < 2) 127 usage(); 128 129 obsolete(&argc, &argv); 130 #ifdef KERBEROS 131 #define optstring "0123456789aB:b:C:cD:d:f:h:kLnSs:T:uWw" 132 #else 133 #define optstring "0123456789aB:b:C:cD:d:f:h:LnSs:T:uWw" 134 #endif 135 while ((ch = getopt(argc, argv, optstring)) != -1) 136 #undef optstring 137 switch (ch) { 138 /* dump level */ 139 case '0': case '1': case '2': case '3': case '4': 140 case '5': case '6': case '7': case '8': case '9': 141 level = ch; 142 break; 143 144 case 'a': /* `auto-size', Write to EOM. */ 145 unlimited = 1; 146 break; 147 148 case 'B': /* blocks per output file */ 149 blocksperfile = numarg("number of blocks per file", 150 1L, 0L); 151 break; 152 153 case 'b': /* blocks per tape write */ 154 ntrec = numarg("number of blocks per write", 155 1L, 1000L); 156 break; 157 158 case 'C': 159 cachesize = numarg("cachesize", 0, 0) * 1024 * 1024; 160 break; 161 162 case 'c': /* Tape is cart. not 9-track */ 163 cartridge = 1; 164 break; 165 166 case 'D': 167 dumpdates = optarg; 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 'f': /* output file */ 177 tape = optarg; 178 break; 179 180 case 'h': 181 honorlevel = numarg("honor level", 0L, 10L); 182 break; 183 184 #ifdef KERBEROS 185 case 'k': 186 dokerberos = 1; 187 break; 188 #endif 189 190 case 'L': 191 snapdump = 1; 192 break; 193 194 case 'n': /* notify operators */ 195 notify = 1; 196 break; 197 198 case 'S': /* exit after estimating # of tapes */ 199 just_estimate = 1; 200 break; 201 202 case 's': /* tape size, feet */ 203 tsize = numarg("tape size", 1L, 0L) * 12 * 10; 204 break; 205 206 case 'T': /* time of last dump */ 207 spcl.c_ddate = unctime(optarg); 208 if (spcl.c_ddate < 0) { 209 (void)fprintf(stderr, "bad time \"%s\"\n", 210 optarg); 211 exit(X_STARTUP); 212 } 213 Tflag = 1; 214 lastlevel = '?'; 215 break; 216 217 case 'u': /* update /etc/dumpdates */ 218 uflag = 1; 219 break; 220 221 case 'W': /* what to do */ 222 case 'w': 223 lastdump(ch); 224 exit(X_FINOK); /* do nothing else */ 225 226 default: 227 usage(); 228 } 229 argc -= optind; 230 argv += optind; 231 232 if (argc < 1) { 233 (void)fprintf(stderr, "Must specify disk or file system\n"); 234 exit(X_STARTUP); 235 } 236 disk = *argv++; 237 argc--; 238 if (argc >= 1) { 239 (void)fprintf(stderr, "Unknown arguments to dump:"); 240 while (argc--) 241 (void)fprintf(stderr, " %s", *argv++); 242 (void)fprintf(stderr, "\n"); 243 exit(X_STARTUP); 244 } 245 if (Tflag && uflag) { 246 (void)fprintf(stderr, 247 "You cannot use the T and u flags together.\n"); 248 exit(X_STARTUP); 249 } 250 if (strcmp(tape, "-") == 0) { 251 pipeout++; 252 tape = "standard output"; 253 } 254 255 if (blocksperfile) 256 blocksperfile = blocksperfile / ntrec * ntrec; /* round down */ 257 else if (!unlimited) { 258 /* 259 * Determine how to default tape size and density 260 * 261 * density tape size 262 * 9-track 1600 bpi (160 bytes/.1") 2300 ft. 263 * 9-track 6250 bpi (625 bytes/.1") 2300 ft. 264 * cartridge 8000 bpi (100 bytes/.1") 1700 ft. 265 * (450*4 - slop) 266 * hilit19 hits again: " 267 */ 268 if (density == 0) 269 density = cartridge ? 100 : 160; 270 if (tsize == 0) 271 tsize = cartridge ? 1700L*120L : 2300L*120L; 272 } 273 274 if (strchr(tape, ':')) { 275 host = tape; 276 tape = strchr(host, ':'); 277 *tape++ = '\0'; 278 #ifdef RDUMP 279 if (index(tape, '\n')) { 280 (void)fprintf(stderr, "invalid characters in tape\n"); 281 exit(X_STARTUP); 282 } 283 if (rmthost(host) == 0) 284 exit(X_STARTUP); 285 #else 286 (void)fprintf(stderr, "remote dump not enabled\n"); 287 exit(X_STARTUP); 288 #endif 289 } 290 (void)setuid(getuid()); /* rmthost() is the only reason to be setuid */ 291 292 if (signal(SIGHUP, SIG_IGN) != SIG_IGN) 293 signal(SIGHUP, sig); 294 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN) 295 signal(SIGTRAP, sig); 296 if (signal(SIGFPE, SIG_IGN) != SIG_IGN) 297 signal(SIGFPE, sig); 298 if (signal(SIGBUS, SIG_IGN) != SIG_IGN) 299 signal(SIGBUS, sig); 300 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN) 301 signal(SIGSEGV, sig); 302 if (signal(SIGTERM, SIG_IGN) != SIG_IGN) 303 signal(SIGTERM, sig); 304 if (signal(SIGINT, interrupt) == SIG_IGN) 305 signal(SIGINT, SIG_IGN); 306 307 getfstab(); /* /etc/fstab snarfed */ 308 /* 309 * disk can be either the full special file name, 310 * the suffix of the special file name, 311 * the special name missing the leading '/', 312 * the file system name with or without the leading '/'. 313 */ 314 dt = fstabsearch(disk); 315 if (dt != NULL) { 316 disk = rawname(dt->fs_spec); 317 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN); 318 (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN); 319 } else { 320 (void)strncpy(spcl.c_dev, disk, NAMELEN); 321 (void)strncpy(spcl.c_filesys, "an unlisted file system", 322 NAMELEN); 323 } 324 spcl.c_dev[NAMELEN-1]='\0'; 325 spcl.c_filesys[NAMELEN-1]='\0'; 326 327 if ((mntpt = getmntpt(disk, &mntflags)) != 0) { 328 if (snapdump == 0) { 329 msg("WARNING: %s\n", 330 "should use -L when dumping live filesystems!"); 331 } else { 332 struct ufs_args args; 333 char snapname[BUFSIZ]; 334 335 snprintf(snapname, sizeof snapname, "%s/.dump_snapshot", 336 mntpt); 337 args.fspec = snapname; 338 while (mount("ffs", mntpt, 339 mntflags | MNT_UPDATE | MNT_SNAPSHOT, 340 &args) < 0) { 341 if (errno == EEXIST && unlink(snapname) == 0) 342 continue; 343 errx(X_STARTUP, "Cannot create %s: %s\n", 344 snapname, strerror(errno)); 345 } 346 if ((diskfd = open(snapname, O_RDONLY)) < 0) { 347 unlink(snapname); 348 errx(X_STARTUP, "Cannot open %s: %s\n", 349 snapname, strerror(errno)); 350 } 351 unlink(snapname); 352 if (fstat(diskfd, &sb) != 0) 353 err(X_STARTUP, "%s: stat", snapname); 354 spcl.c_date = _time_to_time64(sb.st_mtime); 355 } 356 } else if (snapdump != 0) { 357 msg("WARNING: Cannot use -L on an unmounted filesystem.\n"); 358 snapdump = 0; 359 } 360 if (snapdump == 0) { 361 if ((diskfd = open(disk, O_RDONLY)) < 0) 362 err(X_STARTUP, "Cannot open %s", disk); 363 if (fstat(diskfd, &sb) != 0) 364 err(X_STARTUP, "%s: stat", disk); 365 if (S_ISDIR(sb.st_mode)) 366 errx(X_STARTUP, "%s: unknown file system", disk); 367 } 368 369 (void)strcpy(spcl.c_label, "none"); 370 (void)gethostname(spcl.c_host, NAMELEN); 371 spcl.c_level = level - '0'; 372 spcl.c_type = TS_TAPE; 373 374 if (spcl.c_date == 0) { 375 tmsg = "the epoch\n"; 376 } else { 377 time_t t = _time64_to_time(spcl.c_date); 378 tmsg = ctime(&t); 379 } 380 msg("Date of this level %c dump: %s", level, tmsg); 381 382 if (!Tflag) 383 getdumptime(); /* /etc/dumpdates snarfed */ 384 if (spcl.c_ddate == 0) { 385 tmsg = "the epoch\n"; 386 } else { 387 time_t t = _time64_to_time(spcl.c_ddate); 388 tmsg = ctime(&t); 389 } 390 msg("Date of last level %c dump: %s", lastlevel, tmsg); 391 392 msg("Dumping %s%s ", snapdump ? "snapshot of ": "", disk); 393 if (dt != NULL) 394 msgtail("(%s) ", dt->fs_file); 395 if (host) 396 msgtail("to %s on host %s\n", tape, host); 397 else 398 msgtail("to %s\n", tape); 399 400 sync(); 401 sblock = (struct fs *)sblock_buf; 402 for (i = 0; sblock_try[i] != -1; i++) { 403 bread(sblock_try[i] >> dev_bshift, (char *) sblock, SBLOCKSIZE); 404 if ((sblock->fs_magic == FS_UFS1_MAGIC || 405 (sblock->fs_magic == FS_UFS2_MAGIC && 406 sblock->fs_sblockloc == sblock_try[i])) && 407 sblock->fs_bsize <= MAXBSIZE && 408 sblock->fs_bsize >= sizeof(struct fs)) 409 break; 410 } 411 if (sblock_try[i] == -1) 412 quit("Cannot find file system superblock\n"); 413 dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1); 414 dev_bshift = ffs(dev_bsize) - 1; 415 if (dev_bsize != (1 << dev_bshift)) 416 quit("dev_bsize (%ld) is not a power of 2", dev_bsize); 417 tp_bshift = ffs(TP_BSIZE) - 1; 418 if (TP_BSIZE != (1 << tp_bshift)) 419 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE); 420 maxino = sblock->fs_ipg * sblock->fs_ncg; 421 mapsize = roundup(howmany(maxino, CHAR_BIT), TP_BSIZE); 422 usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char)); 423 dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char)); 424 dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char)); 425 tapesize = 3 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1); 426 427 nonodump = spcl.c_level < honorlevel; 428 429 passno = 1; 430 setproctitle("%s: pass 1: regular files", disk); 431 msg("mapping (Pass I) [regular files]\n"); 432 anydirskipped = mapfiles(maxino, &tapesize); 433 434 passno = 2; 435 setproctitle("%s: pass 2: directories", disk); 436 msg("mapping (Pass II) [directories]\n"); 437 while (anydirskipped) { 438 anydirskipped = mapdirs(maxino, &tapesize); 439 } 440 441 if (pipeout || unlimited) { 442 tapesize += 10; /* 10 trailer blocks */ 443 msg("estimated %ld tape blocks.\n", tapesize); 444 } else { 445 double fetapes; 446 447 if (blocksperfile) 448 fetapes = (double) tapesize / blocksperfile; 449 else if (cartridge) { 450 /* Estimate number of tapes, assuming streaming stops at 451 the end of each block written, and not in mid-block. 452 Assume no erroneous blocks; this can be compensated 453 for with an artificially low tape size. */ 454 fetapes = 455 ( (double) tapesize /* blocks */ 456 * TP_BSIZE /* bytes/block */ 457 * (1.0/density) /* 0.1" / byte " */ 458 + 459 (double) tapesize /* blocks */ 460 * (1.0/ntrec) /* streaming-stops per block */ 461 * 15.48 /* 0.1" / streaming-stop " */ 462 ) * (1.0 / tsize ); /* tape / 0.1" " */ 463 } else { 464 /* Estimate number of tapes, for old fashioned 9-track 465 tape */ 466 int tenthsperirg = (density == 625) ? 3 : 7; 467 fetapes = 468 ( (double) tapesize /* blocks */ 469 * TP_BSIZE /* bytes / block */ 470 * (1.0/density) /* 0.1" / byte " */ 471 + 472 (double) tapesize /* blocks */ 473 * (1.0/ntrec) /* IRG's / block */ 474 * tenthsperirg /* 0.1" / IRG " */ 475 ) * (1.0 / tsize ); /* tape / 0.1" " */ 476 } 477 etapes = fetapes; /* truncating assignment */ 478 etapes++; 479 /* count the dumped inodes map on each additional tape */ 480 tapesize += (etapes - 1) * 481 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1); 482 tapesize += etapes + 10; /* headers + 10 trailer blks */ 483 msg("estimated %ld tape blocks on %3.2f tape(s).\n", 484 tapesize, fetapes); 485 } 486 487 /* 488 * If the user only wants an estimate of the number of 489 * tapes, exit now. 490 */ 491 if (just_estimate) 492 exit(0); 493 494 /* 495 * Allocate tape buffer. 496 */ 497 if (!alloctape()) 498 quit( 499 "can't allocate tape buffers - try a smaller blocking factor.\n"); 500 501 startnewtape(1); 502 (void)time((time_t *)&(tstart_writing)); 503 dumpmap(usedinomap, TS_CLRI, maxino - 1); 504 505 passno = 3; 506 setproctitle("%s: pass 3: directories", disk); 507 msg("dumping (Pass III) [directories]\n"); 508 dirty = 0; /* XXX just to get gcc to shut up */ 509 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) { 510 if (((ino - 1) % CHAR_BIT) == 0) /* map is offset by 1 */ 511 dirty = *map++; 512 else 513 dirty >>= 1; 514 if ((dirty & 1) == 0) 515 continue; 516 /* 517 * Skip directory inodes deleted and maybe reallocated 518 */ 519 dp = getino(ino, &mode); 520 if (mode != IFDIR) 521 continue; 522 (void)dumpino(dp, ino); 523 } 524 525 passno = 4; 526 setproctitle("%s: pass 4: regular files", disk); 527 msg("dumping (Pass IV) [regular files]\n"); 528 for (map = dumpinomap, ino = 1; ino < maxino; ino++) { 529 if (((ino - 1) % CHAR_BIT) == 0) /* map is offset by 1 */ 530 dirty = *map++; 531 else 532 dirty >>= 1; 533 if ((dirty & 1) == 0) 534 continue; 535 /* 536 * Skip inodes deleted and reallocated as directories. 537 */ 538 dp = getino(ino, &mode); 539 if (mode == IFDIR) 540 continue; 541 (void)dumpino(dp, ino); 542 } 543 544 (void)time((time_t *)&(tend_writing)); 545 spcl.c_type = TS_END; 546 for (i = 0; i < ntrec; i++) 547 writeheader(maxino - 1); 548 if (pipeout) 549 msg("DUMP: %jd tape blocks\n", (intmax_t)spcl.c_tapea); 550 else 551 msg("DUMP: %jd tape blocks on %d volume%s\n", 552 (intmax_t)spcl.c_tapea, spcl.c_volume, 553 (spcl.c_volume == 1) ? "" : "s"); 554 555 /* report dump performance, avoid division through zero */ 556 if (tend_writing - tstart_writing == 0) 557 msg("finished in less than a second\n"); 558 else 559 msg("finished in %d seconds, throughput %jd KBytes/sec\n", 560 tend_writing - tstart_writing, (intmax_t)(spcl.c_tapea / 561 (tend_writing - tstart_writing))); 562 563 putdumptime(); 564 trewind(); 565 broadcast("DUMP IS DONE!\a\a\n"); 566 msg("DUMP IS DONE\n"); 567 Exit(X_FINOK); 568 /* NOTREACHED */ 569 } 570 571 static void 572 usage(void) 573 { 574 fprintf(stderr, 575 "usage: dump [-0123456789ac" 576 #ifdef KERBEROS 577 "k" 578 #endif 579 "LnSu] [-B records] [-b blocksize] [-C cachesize]\n" 580 " [-D dumpdates] [-d density] [-f file] [-h level] [-s feet]\n" 581 " [-T date] filesystem\n" 582 " dump -W | -w\n"); 583 exit(X_STARTUP); 584 } 585 586 /* 587 * Check to see if a disk is currently mounted. 588 */ 589 static char * 590 getmntpt(char *name, int *mntflagsp) 591 { 592 long mntsize, i; 593 struct statfs *mntbuf; 594 595 mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 596 for (i = 0; i < mntsize; i++) { 597 if (!strcmp(mntbuf[i].f_mntfromname, name)) { 598 *mntflagsp = mntbuf[i].f_flags; 599 return (mntbuf[i].f_mntonname); 600 } 601 } 602 return (0); 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(const char *meaning, long vmin, long vmax) 611 { 612 char *p; 613 long val; 614 615 val = strtol(optarg, &p, 10); 616 if (*p) 617 errx(1, "illegal %s -- %s", meaning, optarg); 618 if (val < vmin || (vmax && val > vmax)) 619 errx(1, "%s must be between %ld and %ld", meaning, vmin, vmax); 620 return (val); 621 } 622 623 void 624 sig(int signo) 625 { 626 switch(signo) { 627 case SIGALRM: 628 case SIGBUS: 629 case SIGFPE: 630 case SIGHUP: 631 case SIGTERM: 632 case SIGTRAP: 633 if (pipeout) 634 quit("Signal on pipe: cannot recover\n"); 635 msg("Rewriting attempted as response to unknown signal.\n"); 636 (void)fflush(stderr); 637 (void)fflush(stdout); 638 close_rewind(); 639 exit(X_REWRITE); 640 /* NOTREACHED */ 641 case SIGSEGV: 642 msg("SIGSEGV: ABORTING!\n"); 643 (void)signal(SIGSEGV, SIG_DFL); 644 (void)kill(0, SIGSEGV); 645 /* NOTREACHED */ 646 } 647 } 648 649 char * 650 rawname(char *cp) 651 { 652 static char rawbuf[MAXPATHLEN]; 653 char *dp; 654 struct stat sb; 655 656 if (stat(cp, &sb) == 0) { 657 /* 658 * If the name already refers to a raw device, return 659 * it immediately without tampering. 660 */ 661 if ((sb.st_mode & S_IFMT) == S_IFCHR) 662 return (cp); 663 } 664 665 dp = strrchr(cp, '/'); 666 667 if (dp == NULL) 668 return (NULL); 669 *dp = '\0'; 670 (void)strlcpy(rawbuf, cp, MAXPATHLEN - 1); 671 *dp = '/'; 672 (void)strlcat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf)); 673 (void)strlcat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf)); 674 return (rawbuf); 675 } 676 677 /* 678 * obsolete -- 679 * Change set of key letters and ordered arguments into something 680 * getopt(3) will like. 681 */ 682 static void 683 obsolete(int *argcp, char **argvp[]) 684 { 685 int argc, flags; 686 char *ap, **argv, *flagsp, **nargv, *p; 687 688 /* Setup. */ 689 argv = *argvp; 690 argc = *argcp; 691 692 /* Return if no arguments or first argument has leading dash. */ 693 ap = argv[1]; 694 if (argc == 1 || *ap == '-') 695 return; 696 697 /* Allocate space for new arguments. */ 698 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 699 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 700 err(1, NULL); 701 702 *nargv++ = *argv; 703 argv += 2; 704 705 for (flags = 0; *ap; ++ap) { 706 switch (*ap) { 707 case 'B': 708 case 'b': 709 case 'd': 710 case 'f': 711 case 'D': 712 case 'C': 713 case 'h': 714 case 's': 715 case 'T': 716 if (*argv == NULL) { 717 warnx("option requires an argument -- %c", *ap); 718 usage(); 719 } 720 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 721 err(1, NULL); 722 nargv[0][0] = '-'; 723 nargv[0][1] = *ap; 724 (void)strcpy(&nargv[0][2], *argv); 725 ++argv; 726 ++nargv; 727 break; 728 default: 729 if (!flags) { 730 *p++ = '-'; 731 flags = 1; 732 } 733 *p++ = *ap; 734 break; 735 } 736 } 737 738 /* Terminate flags. */ 739 if (flags) { 740 *p = '\0'; 741 *nargv++ = flagsp; 742 } 743 744 /* Copy remaining arguments. */ 745 while ((*nargv++ = *argv++)); 746 747 /* Update argument count. */ 748 *argcp = nargv - *argvp - 1; 749 } 750