main.c revision 1.21
1 /* $NetBSD: main.c,v 1.21 1999/01/03 02:17:46 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 1.21 1999/01/03 02:17:46 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 #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 97 int main __P((int, char *[])); 98 static long numarg __P((char *, long, long)); 99 static void obsolete __P((int *, char **[])); 100 static void usage __P((void)); 101 102 int 103 main(argc, argv) 104 int argc; 105 char *argv[]; 106 { 107 ino_t ino; 108 int dirty; 109 struct dinode *dp; 110 struct fstab *dt; 111 char *map; 112 int ch; 113 int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1; 114 ino_t maxino; 115 time_t tnow, date; 116 int dirlist; 117 char *toplevel; 118 int just_estimate = 0; 119 char labelstr[LBLSIZE]; 120 121 spcl.c_date = 0; 122 (void)time((time_t *)&spcl.c_date); 123 124 tsize = 0; /* Default later, based on 'c' option for cart tapes */ 125 if ((tape = getenv("TAPE")) == NULL) 126 tape = _PATH_DEFTAPE; 127 dumpdates = _PATH_DUMPDATES; 128 temp = _PATH_DTMP; 129 strcpy(labelstr, "none"); /* XXX safe strcpy. */ 130 if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0) 131 quit("TP_BSIZE must be a multiple of DEV_BSIZE\n"); 132 level = '0'; 133 134 if (argc < 2) 135 usage(); 136 137 obsolete(&argc, &argv); 138 while ((ch = getopt(argc, argv, 139 "0123456789B:b:cd:f:h:L:ns:ST:uWw")) != -1) 140 switch (ch) { 141 /* dump level */ 142 case '0': case '1': case '2': case '3': case '4': 143 case '5': case '6': case '7': case '8': case '9': 144 level = ch; 145 break; 146 147 case 'B': /* blocks per output file */ 148 blocksperfile = numarg("blocks per file", 1L, 0L); 149 break; 150 151 case 'b': /* blocks per tape write */ 152 ntrec = numarg("blocks per write", 1L, 1000L); 153 bflag = 1; 154 break; 155 156 case 'c': /* Tape is cart. not 9-track */ 157 cartridge = 1; 158 break; 159 160 case 'd': /* density, in bits per inch */ 161 density = numarg("density", 10L, 327670L) / 10; 162 if (density >= 625 && !bflag) 163 ntrec = HIGHDENSITYTREC; 164 break; 165 166 case 'f': /* output file */ 167 tape = optarg; 168 break; 169 170 case 'h': 171 honorlevel = numarg("honor level", 0L, 10L); 172 break; 173 174 case 'L': 175 /* 176 * Note that although there are LBLSIZE characters, 177 * the last must be '\0', so the limit on strlen() 178 * is really LBLSIZE-1. 179 */ 180 strncpy(labelstr, optarg, LBLSIZE); 181 labelstr[LBLSIZE-1] = '\0'; 182 if (strlen(optarg) > LBLSIZE-1) { 183 msg( 184 "WARNING Label `%s' is larger than limit of %d characters.\n", 185 optarg, LBLSIZE-1); 186 msg("WARNING: Using truncated label `%s'.\n", 187 labelstr); 188 } 189 break; 190 case 'n': /* notify operators */ 191 notify = 1; 192 break; 193 194 case 's': /* tape size, feet */ 195 tsize = numarg("tape size", 1L, 0L) * 12 * 10; 196 break; 197 198 case 'S': /* exit after estimating # of tapes */ 199 just_estimate = 1; 200 break; 201 202 case 'T': /* time of last dump */ 203 spcl.c_ddate = unctime(optarg); 204 if (spcl.c_ddate < 0) { 205 (void)fprintf(stderr, "bad time \"%s\"\n", 206 optarg); 207 exit(X_ABORT); 208 } 209 Tflag = 1; 210 lastlevel = '?'; 211 break; 212 213 case 'u': /* update /etc/dumpdates */ 214 uflag = 1; 215 break; 216 217 case 'W': /* what to do */ 218 case 'w': 219 lastdump(ch); 220 exit(0); /* do nothing else */ 221 222 default: 223 usage(); 224 } 225 argc -= optind; 226 argv += optind; 227 228 if (argc < 1) { 229 (void)fprintf(stderr, "Must specify disk or filesystem\n"); 230 exit(X_ABORT); 231 } 232 233 /* 234 * determine if disk is a subdirectory, and setup appropriately 235 */ 236 dirlist = 0; 237 toplevel = NULL; 238 for (i = 0; i < argc; i++) { 239 struct stat sb; 240 struct statfs fsbuf; 241 242 if (lstat(argv[i], &sb) == -1) { 243 msg("Cannot lstat %s: %s\n", argv[i], strerror(errno)); 244 exit(X_ABORT); 245 } 246 if (!S_ISDIR(sb.st_mode) && !S_ISREG(sb.st_mode)) 247 break; 248 if (statfs(argv[i], &fsbuf) == -1) { 249 msg("Cannot statfs %s: %s\n", argv[i], strerror(errno)); 250 exit(X_ABORT); 251 } 252 if (strcmp(argv[i], fsbuf.f_mntonname) == 0) { 253 if (dirlist != 0) { 254 msg("Can't dump a mountpoint and a filelist\n"); 255 exit(X_ABORT); 256 } 257 break; /* exit if sole mountpoint */ 258 } 259 if (!disk) { 260 if ((toplevel = strdup(fsbuf.f_mntonname)) == NULL) { 261 msg("Cannot malloc diskname\n"); 262 exit(X_ABORT); 263 } 264 disk = toplevel; 265 if (uflag) { 266 msg("Ignoring u flag for subdir dump\n"); 267 uflag = 0; 268 } 269 if (level > '0') { 270 msg("Subdir dump is done at level 0\n"); 271 level = '0'; 272 } 273 msg("Dumping sub files/directories from %s\n", disk); 274 } else { 275 if (strcmp(disk, fsbuf.f_mntonname) != 0) { 276 msg("%s is not on %s\n", argv[i], disk); 277 exit(X_ABORT); 278 } 279 } 280 msg("Dumping file/directory %s\n", argv[i]); 281 dirlist++; 282 } 283 if (dirlist == 0) { 284 disk = *argv++; 285 if (argc != 1) { 286 (void)fprintf(stderr, "Excess arguments to dump:"); 287 while (--argc) 288 (void)fprintf(stderr, " %s", *argv++); 289 (void)fprintf(stderr, "\n"); 290 exit(X_ABORT); 291 } 292 } 293 if (Tflag && uflag) { 294 (void)fprintf(stderr, 295 "You cannot use the T and u flags together.\n"); 296 exit(X_ABORT); 297 } 298 if (strcmp(tape, "-") == 0) { 299 pipeout++; 300 tape = "standard output"; 301 } 302 303 if (blocksperfile) 304 blocksperfile = blocksperfile / ntrec * ntrec; /* round down */ 305 else { 306 /* 307 * Determine how to default tape size and density 308 * 309 * density tape size 310 * 9-track 1600 bpi (160 bytes/.1") 2300 ft. 311 * 9-track 6250 bpi (625 bytes/.1") 2300 ft. 312 * cartridge 8000 bpi (100 bytes/.1") 1700 ft. 313 * (450*4 - slop) 314 */ 315 if (density == 0) 316 density = cartridge ? 100 : 160; 317 if (tsize == 0) 318 tsize = cartridge ? 1700L*120L : 2300L*120L; 319 } 320 321 if (strchr(tape, ':')) { 322 host = tape; 323 tape = strchr(host, ':'); 324 *tape++ = '\0'; 325 #ifdef RDUMP 326 if (rmthost(host) == 0) 327 exit(X_ABORT); 328 #else 329 (void)fprintf(stderr, "remote dump not enabled\n"); 330 exit(X_ABORT); 331 #endif 332 } 333 334 if (signal(SIGHUP, SIG_IGN) != SIG_IGN) 335 signal(SIGHUP, sig); 336 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN) 337 signal(SIGTRAP, sig); 338 if (signal(SIGFPE, SIG_IGN) != SIG_IGN) 339 signal(SIGFPE, sig); 340 if (signal(SIGBUS, SIG_IGN) != SIG_IGN) 341 signal(SIGBUS, sig); 342 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN) 343 signal(SIGSEGV, sig); 344 if (signal(SIGTERM, SIG_IGN) != SIG_IGN) 345 signal(SIGTERM, sig); 346 if (signal(SIGINT, interrupt) == SIG_IGN) 347 signal(SIGINT, SIG_IGN); 348 349 set_operators(); /* /etc/group snarfed */ 350 getfstab(); /* /etc/fstab snarfed */ 351 352 /* 353 * disk can be either the full special file name, 354 * the suffix of the special file name, 355 * the special name missing the leading '/', 356 * the file system name with or without the leading '/'. 357 */ 358 dt = fstabsearch(disk); 359 if (dt != NULL) { 360 disk = rawname(dt->fs_spec); 361 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN); 362 if (dirlist != 0) 363 (void)snprintf(spcl.c_filesys, NAMELEN, 364 "a subset of %s", dt->fs_file); 365 else 366 (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN); 367 } else { 368 (void)strncpy(spcl.c_dev, disk, NAMELEN); 369 (void)strncpy(spcl.c_filesys, "an unlisted file system", 370 NAMELEN); 371 } 372 (void)strncpy(spcl.c_label, labelstr, sizeof(spcl.c_label) - 1); 373 (void)gethostname(spcl.c_host, NAMELEN); 374 spcl.c_host[sizeof(spcl.c_host) - 1] = '\0'; 375 376 if ((diskfd = open(disk, O_RDONLY)) < 0) { 377 msg("Cannot open %s\n", disk); 378 exit(X_ABORT); 379 } 380 sync(); 381 sblock = (struct fs *)sblock_buf; 382 bread(SBOFF, (char *) sblock, SBSIZE); 383 if (sblock->fs_magic != FS_MAGIC) { 384 if (sblock->fs_magic == bswap32(FS_MAGIC)) { 385 ffs_sb_swap(sblock, sblock, 0); 386 needswap = 1; 387 } else 388 quit("bad sblock magic number\n"); 389 } 390 391 spcl.c_level = iswap32(level - '0'); 392 spcl.c_type = iswap32(TS_TAPE); 393 spcl.c_date = iswap32(spcl.c_date); 394 spcl.c_ddate = iswap32(spcl.c_ddate); 395 if (!Tflag) 396 getdumptime(); /* /etc/dumpdates snarfed */ 397 398 date = iswap32(spcl.c_date); 399 msg("Date of this level %c dump: %s", level, 400 spcl.c_date == 0 ? "the epoch\n" : ctime(&date)); 401 date = iswap32(spcl.c_ddate); 402 msg("Date of last level %c dump: %s", lastlevel, 403 spcl.c_ddate == 0 ? "the epoch\n" : ctime(&date)); 404 msg("Dumping "); 405 if (dt != NULL && dirlist != 0) 406 msgtail("a subset of "); 407 msgtail("%s (%s) ", disk, spcl.c_filesys); 408 if (host) 409 msgtail("to %s on host %s\n", tape, host); 410 else 411 msgtail("to %s\n", tape); 412 msg("Label: %s\n", labelstr); 413 414 dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1); 415 dev_bshift = ffs(dev_bsize) - 1; 416 if (dev_bsize != (1 << dev_bshift)) 417 quit("dev_bsize (%d) is not a power of 2", dev_bsize); 418 tp_bshift = ffs(TP_BSIZE) - 1; 419 if (TP_BSIZE != (1 << tp_bshift)) 420 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE); 421 #ifdef FS_44INODEFMT 422 if (sblock->fs_inodefmt >= FS_44INODEFMT) { 423 spcl.c_flags = iswap32(iswap32(spcl.c_flags) | DR_NEWINODEFMT); 424 } else { 425 /* 426 * Determine parameters for older filesystems. From 427 * /sys/ufs/ffs/ffs_vfsops.c::ffs_oldfscompat() 428 * 429 * XXX: not sure if other variables (fs_npsect, fs_interleave, 430 * fs_nrpos, fs_maxfilesize) need to be fudged too. 431 */ 432 sblock->fs_qbmask = ~sblock->fs_bmask; 433 sblock->fs_qfmask = ~sblock->fs_fmask; 434 } 435 #endif 436 maxino = sblock->fs_ipg * sblock->fs_ncg; 437 mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE); 438 usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char)); 439 dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char)); 440 dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char)); 441 tapesize = 3 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1); 442 443 nonodump = iswap32(spcl.c_level) < honorlevel; 444 445 (void)signal(SIGINFO, statussig); 446 447 msg("mapping (Pass I) [regular files]\n"); 448 anydirskipped = mapfiles(maxino, &tapesize, toplevel, 449 (dirlist ? argv : NULL)); 450 451 msg("mapping (Pass II) [directories]\n"); 452 while (anydirskipped) { 453 anydirskipped = mapdirs(maxino, &tapesize); 454 } 455 456 if (pipeout) { 457 tapesize += 10; /* 10 trailer blocks */ 458 msg("estimated %ld tape blocks.\n", tapesize); 459 } else { 460 double fetapes; 461 462 if (blocksperfile) 463 fetapes = (double) tapesize / blocksperfile; 464 else if (cartridge) { 465 /* Estimate number of tapes, assuming streaming stops at 466 the end of each block written, and not in mid-block. 467 Assume no erroneous blocks; this can be compensated 468 for with an artificially low tape size. */ 469 fetapes = 470 ( tapesize /* blocks */ 471 * TP_BSIZE /* bytes/block */ 472 * (1.0/density) /* 0.1" / byte */ 473 + 474 tapesize /* blocks */ 475 * (1.0/ntrec) /* streaming-stops per block */ 476 * 15.48 /* 0.1" / streaming-stop */ 477 ) * (1.0 / tsize ); /* tape / 0.1" */ 478 } else { 479 /* Estimate number of tapes, for old fashioned 9-track 480 tape */ 481 int tenthsperirg = (density == 625) ? 3 : 7; 482 fetapes = 483 ( tapesize /* blocks */ 484 * TP_BSIZE /* bytes / block */ 485 * (1.0/density) /* 0.1" / byte */ 486 + 487 tapesize /* blocks */ 488 * (1.0/ntrec) /* IRG's / block */ 489 * tenthsperirg /* 0.1" / IRG */ 490 ) * (1.0 / tsize ); /* tape / 0.1" */ 491 } 492 etapes = fetapes; /* truncating assignment */ 493 etapes++; 494 /* count the dumped inodes map on each additional tape */ 495 tapesize += (etapes - 1) * 496 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1); 497 tapesize += etapes + 10; /* headers + 10 trailer blks */ 498 msg("estimated %ld tape blocks on %3.2f tape(s).\n", 499 tapesize, fetapes); 500 } 501 /* 502 * If the user only wants an estimate of the number of 503 * tapes, exit now. 504 */ 505 if (just_estimate) 506 exit(0); 507 508 /* 509 * Allocate tape buffer. 510 */ 511 if (!alloctape()) 512 quit("can't allocate tape buffers - try a smaller blocking factor.\n"); 513 514 startnewtape(1); 515 (void)time((time_t *)&(tstart_writing)); 516 xferrate = 0; 517 dumpmap(usedinomap, TS_CLRI, maxino - 1); 518 519 msg("dumping (Pass III) [directories]\n"); 520 dirty = 0; /* XXX just to get gcc to shut up */ 521 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) { 522 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */ 523 dirty = *map++; 524 else 525 dirty >>= 1; 526 if ((dirty & 1) == 0) 527 continue; 528 /* 529 * Skip directory inodes deleted and maybe reallocated 530 */ 531 dp = getino(ino); 532 if ((dp->di_mode & IFMT) != IFDIR) 533 continue; 534 (void)dumpino(dp, ino); 535 } 536 537 msg("dumping (Pass IV) [regular files]\n"); 538 for (map = dumpinomap, ino = 1; ino < maxino; ino++) { 539 int mode; 540 541 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 inodes deleted and reallocated as directories. 549 */ 550 dp = getino(ino); 551 mode = dp->di_mode & IFMT; 552 if (mode == IFDIR) 553 continue; 554 (void)dumpino(dp, ino); 555 } 556 557 spcl.c_type = iswap32(TS_END); 558 for (i = 0; i < ntrec; i++) 559 writeheader(maxino - 1); 560 if (pipeout) 561 msg("%ld tape blocks\n",iswap32(spcl.c_tapea)); 562 else 563 msg("%ld tape blocks on %d volume%s\n", 564 iswap32(spcl.c_tapea), iswap32(spcl.c_volume), 565 (iswap32(spcl.c_volume) == 1) ? "" : "s"); 566 tnow = do_stats(); 567 date = iswap32(spcl.c_date); 568 msg("Date of this level %c dump: %s", level, 569 spcl.c_date == 0 ? "the epoch\n" : ctime(&date)); 570 msg("Date this dump completed: %s", ctime(&tnow)); 571 msg("Average transfer rate: %ld KB/s\n", xferrate / tapeno); 572 putdumptime(); 573 trewind(); 574 broadcast("DUMP IS DONE!\7\7\n"); 575 msg("DUMP IS DONE\n"); 576 Exit(X_FINOK); 577 /* NOTREACHED */ 578 exit(X_FINOK); /* XXX: to satisfy gcc */ 579 } 580 581 static void 582 usage() 583 { 584 585 (void)fprintf(stderr, "%s\n%s\n%s\n", 586 "usage: dump [-0123456789cnu] [-B records] [-b blocksize] [-d density]", 587 " [-f file] [-h level] [-L label] [-s feet] [-T date] filesystem", 588 " dump [-W | -w]"); 589 exit(1); 590 } 591 592 /* 593 * Pick up a numeric argument. It must be nonnegative and in the given 594 * range (except that a vmax of 0 means unlimited). 595 */ 596 static long 597 numarg(meaning, vmin, vmax) 598 char *meaning; 599 long vmin, vmax; 600 { 601 char *p; 602 long val; 603 604 val = strtol(optarg, &p, 10); 605 if (*p) 606 errx(1, "illegal %s -- %s", meaning, optarg); 607 if (val < vmin || (vmax && val > vmax)) 608 errx(1, "%s must be between %ld and %ld", meaning, vmin, vmax); 609 return (val); 610 } 611 612 void 613 sig(signo) 614 int signo; 615 { 616 switch(signo) { 617 case SIGALRM: 618 case SIGBUS: 619 case SIGFPE: 620 case SIGHUP: 621 case SIGTERM: 622 case SIGTRAP: 623 if (pipeout) 624 quit("Signal on pipe: cannot recover\n"); 625 msg("Rewriting attempted as response to unknown signal.\n"); 626 (void)fflush(stderr); 627 (void)fflush(stdout); 628 close_rewind(); 629 exit(X_REWRITE); 630 /* NOTREACHED */ 631 case SIGSEGV: 632 msg("SIGSEGV: ABORTING!\n"); 633 (void)signal(SIGSEGV, SIG_DFL); 634 (void)kill(0, SIGSEGV); 635 /* NOTREACHED */ 636 } 637 } 638 639 char * 640 rawname(cp) 641 char *cp; 642 { 643 static char rawbuf[MAXPATHLEN]; 644 char *dp = strrchr(cp, '/'); 645 646 if (dp == NULL) 647 return (NULL); 648 *dp = '\0'; 649 (void)snprintf(rawbuf, sizeof rawbuf, "%s/r%s", cp, dp + 1); 650 *dp = '/'; 651 return (rawbuf); 652 } 653 654 /* 655 * obsolete -- 656 * Change set of key letters and ordered arguments into something 657 * getopt(3) will like. 658 */ 659 static void 660 obsolete(argcp, argvp) 661 int *argcp; 662 char **argvp[]; 663 { 664 int argc, flags; 665 char *ap, **argv, *flagsp, **nargv, *p; 666 667 /* Setup. */ 668 argv = *argvp; 669 argc = *argcp; 670 671 /* Return if no arguments or first argument has leading dash. */ 672 ap = argv[1]; 673 if (argc == 1 || *ap == '-') 674 return; 675 676 /* Allocate space for new arguments. */ 677 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 678 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 679 err(1, "malloc"); 680 681 *nargv++ = *argv; 682 argv += 2; 683 684 for (flags = 0; *ap; ++ap) { 685 switch (*ap) { 686 case 'B': 687 case 'b': 688 case 'd': 689 case 'f': 690 case 'h': 691 case 's': 692 case 'T': 693 if (*argv == NULL) { 694 warnx("option requires an argument -- %c", *ap); 695 usage(); 696 } 697 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 698 err(1, "malloc"); 699 nargv[0][0] = '-'; 700 nargv[0][1] = *ap; 701 (void)strcpy(&nargv[0][2], *argv); /* XXX safe strcpy */ 702 ++argv; 703 ++nargv; 704 break; 705 default: 706 if (!flags) { 707 *p++ = '-'; 708 flags = 1; 709 } 710 *p++ = *ap; 711 break; 712 } 713 } 714 715 /* Terminate flags. */ 716 if (flags) { 717 *p = '\0'; 718 *nargv++ = flagsp; 719 } 720 721 /* Copy remaining arguments. */ 722 while ((*nargv++ = *argv++) != NULL) 723 ; 724 725 /* Update argument count. */ 726 *argcp = nargv - *argvp - 1; 727 } 728
Indexes created Tue Sep 23 14:10:03 GMT 2025