restore/main.c

   1 /*
   2  *      Ported to Linux's Second Extended File System as part of the
   3  *      dump and restore backup suit
   4  *      Remy Card <card@Linux.EU.Org>, 1994-1997
   5  *      Stelian Pop <stelian@popies.net>, 1999-2000
   6  *      Stelian Pop <stelian@popies.net> - Alcôve <www.alcove.com>, 2000-2002
   7  */
   8
   9 /*
  10  * Copyright (c) 1983, 1993
  11  *      The Regents of the University of California.  All rights reserved.
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  * 1. Redistributions of source code must retain the above copyright
  17  *    notice, this list of conditions and the following disclaimer.
  18  * 2. Redistributions in binary form must reproduce the above copyright
  19  *    notice, this list of conditions and the following disclaimer in the
  20  *    documentation and/or other materials provided with the distribution.
  21  * 3. Neither the name of the University nor the names of its contributors
  22  *    may be used to endorse or promote products derived from this software
  23  *    without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  35  * SUCH DAMAGE.
  36  */
  37
  38 #ifndef lint
  39 static const char rcsid[] =
  40         "$Id: main.c,v 1.50 2005/07/07 09:16:08 stelian Exp $";
  41 #endif /* not lint */
  42
  43 #include <config.h>
  44 #include <compatlfs.h>
  45 #include <sys/types.h>
  46 #include <fcntl.h>
  47 #include <sys/param.h>
  48 #include <sys/stat.h>
  49 #include <errno.h>
  50
  51 #ifdef  __linux__
  52 #include <sys/time.h>
  53 #include <time.h>
  54 #ifdef HAVE_EXT2FS_EXT2_FS_H
  55 #include <ext2fs/ext2_fs.h>
  56 #else
  57 #include <linux/ext2_fs.h>
  58 #endif
  59 #include <bsdcompat.h>
  60 #include <signal.h>
  61 #include <string.h>
  62 #else   /* __linux__ */
  63 #ifdef sunos
  64 #include <signal.h>
  65 #include <string.h>
  66 #include <sys/fcntl.h>
  67 #include <bsdcompat.h>
  68 #include <sys/mtio.h>
  69 #else
  70 #include <ufs/ufs/dinode.h>
  71 #endif
  72 #endif  /* __linux__ */
  73 #include <protocols/dumprestore.h>
  74
  75 #include <compaterr.h>
  76 #include <stdio.h>
  77 #include <stdlib.h>
  78 #include <unistd.h>
  79
  80 #ifdef  __linux__
  81 #include <ext2fs/ext2fs.h>
  82 #include <getopt.h>
  83 #endif
  84
  85 #include "pathnames.h"
  86 #include "restore.h"
  87 #include "extern.h"
  88
  89 int abortifconnerr = 1;         /* set to 1 if lib dumprmt.o should exit on connection errors
  90                                 otherwise just print a message using msg */
  91
  92 int     aflag = 0, bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0;
  93 int     hflag = 1, mflag = 1, Mflag = 0, Nflag = 0, Vflag = 0, zflag = 0;
  94 int     uflag = 0, lflag = 0, Lflag = 0, oflag = 0;
  95 int     ufs2flag = 0;
  96 char    *Afile = NULL;
  97 int     dokerberos = 0;
  98 char    command = '\0';
  99 long    dumpnum = 1;
 100 long    volno = 0;
 101 long    ntrec;
 102 char    *dumpmap = NULL;
 103 char    *usedinomap = NULL;
 104 dump_ino_t maxino;
 105 time_t  dumptime;
 106 time_t  dumpdate;
 107 FILE    *terminal;
 108 char    *tmpdir;
 109 int     compare_ignore_not_found;
 110 int     compare_errors;
 111 char    filesys[NAMELEN];
 112 static const char *stdin_opt = NULL;
 113 char    *bot_script = NULL;
 114 dump_ino_t volinfo[TP_NINOS];
 115 int     wdfd;
 116 int     dirhash_size = 1;
 117
 118 #ifdef USE_QFA
 119 FILE    *gTapeposfp;
 120 char    *gTapeposfile;
 121 char    gTps[255];
 122 long    gSeekstart;
 123 int     tapeposflag;
 124 int     gTapeposfd;
 125 int     createtapeposflag;
 126 unsigned long qfadumpdate;
 127 long long curtapepos;
 128 #endif /* USE_QFA */
 129
 130 long smtc_errno;
 131
 132 #if defined(__linux__) || defined(sunos)
 133 char    *__progname;
 134 #endif
 135
 136 static void obsolete __P((int *, char **[]));
 137 static void usage __P((void));
 138 static void use_stdin __P((const char *));
 139
 140 #define FORCED_UMASK (077)
 141
 142 int
 143 main(int argc, char *argv[])
 144 {
 145         int ch;
 146         dump_ino_t ino;
 147         char *inputdev = _PATH_DEFTAPE;
 148         char *symtbl = "./restoresymtable";
 149         char *p, name[MAXPATHLEN];
 150         FILE *filelist = NULL;
 151         char fname[MAXPATHLEN];
 152         mode_t orig_umask;
 153 #ifdef DEBUG_QFA
 154         time_t tistart, tiend, titaken;
 155 #endif
 156 #ifdef USE_QFA
 157         tapeposflag = 0;
 158         createtapeposflag = 0;
 159 #endif /* USE_QFA */
 160
 161         /* Temp files should *not* be readable.  We set permissions later. */
 162         orig_umask = umask(FORCED_UMASK);
 163         filesys[0] = '\0';
 164 #if defined(__linux__) || defined(sunos)
 165         __progname = argv[0];
 166 #endif
 167
 168         if (argc < 2)
 169                 usage();
 170
 171         if ((inputdev = getenv("TAPE")) == NULL)
 172                 inputdev = _PATH_DEFTAPE;
 173         if ((tmpdir = getenv("TMPDIR")) == NULL)
 174                 tmpdir = _PATH_TMP;
 175         if ((tmpdir = strdup(tmpdir)) == NULL)
 176                 err(1, "malloc tmpdir");
 177         for (p = tmpdir + strlen(tmpdir) - 1; p >= tmpdir && *p == '/'; p--)
 178                 ;
 179         obsolete(&argc, &argv);
 180         while ((ch = getopt(argc, argv,
 181                 "aA:b:CcdD:f:F:hH:i"
 182 #ifdef KERBEROS
 183                 "k"
 184 #endif
 185                 "lL:mMNo"
 186 #ifdef USE_QFA
 187                 "P:Q:"
 188 #endif
 189                 "Rrs:tT:uvVxX:y")) != -1)
 190                 switch(ch) {
 191                 case 'a':
 192                         aflag = 1;
 193                         break;
 194                 case 'A':
 195                         Afile = optarg;
 196                         aflag = 1;
 197                         break;
 198                 case 'b':
 199                         /* Change default tape blocksize. */
 200                         bflag = 1;
 201                         ntrec = strtol(optarg, &p, 10);
 202                         if (*p)
 203                                 errx(1, "illegal blocksize -- %s", optarg);
 204                         if (ntrec <= 0)
 205                                 errx(1, "block size must be greater than 0");
 206                         break;
 207                 case 'c':
 208                         cvtflag = 1;
 209                         break;
 210                 case 'D':
 211                         strncpy(filesys, optarg, NAMELEN);
 212                         filesys[NAMELEN - 1] = '\0';
 213                         break;
 214                 case 'T':
 215                         tmpdir = optarg;
 216                         break;
 217                 case 'd':
 218                         dflag = 1;
 219                         break;
 220                 case 'f':
 221                         if( !strcmp(optarg,"-") )
 222                                 use_stdin("-f");
 223                         inputdev = optarg;
 224                         break;
 225                 case 'F':
 226                         bot_script = optarg;
 227                         break;
 228                 case 'h':
 229                         hflag = 0;
 230                         break;
 231                 case 'H':
 232                         dirhash_size = strtol(optarg, &p, 10);
 233                         if (*p)
 234                                 errx(1, "illegal hash size -- %s", optarg);
 235                         if (dirhash_size < 1)
 236                                 errx(1, "hash size must be greater than 0");
 237                         break;
 238 #ifdef KERBEROS
 239                 case 'k':
 240                         dokerberos = 1;
 241                         break;
 242 #endif
 243                 case 'C':
 244                 case 'i':
 245 #ifdef USE_QFA
 246                 case 'P':
 247 #endif
 248                 case 'R':
 249                 case 'r':
 250                 case 't':
 251                 case 'x':
 252                         if (command != '\0')
 253                                 errx(1,
 254                                     "%c and %c options are mutually exclusive",
 255                                     ch, command);
 256                         command = ch;
 257 #ifdef USE_QFA
 258                         if (ch == 'P') {
 259                                 gTapeposfile = optarg;
 260                                 createtapeposflag = 1;
 261                         }
 262 #endif
 263
 264                         break;
 265                 case 'l':
 266                         lflag = 1;
 267                         break;
 268                 case 'L':
 269                         Lflag = strtol(optarg, &p, 10);
 270                         if (*p)
 271                                 errx(1, "illegal limit -- %s", optarg);
 272                         if (Lflag < 0)
 273                                 errx(1, "limit must be greater than 0");
 274                         break;
 275                 case 'm':
 276                         mflag = 0;
 277                         break;
 278                 case 'M':
 279                         Mflag = 1;
 280                         break;
 281                 case 'N':
 282                         Nflag = 1;
 283                         break;
 284                 case 'o':
 285                         oflag = 1;
 286                         break;
 287 #ifdef USE_QFA
 288                 case 'Q':
 289                         gTapeposfile = optarg;
 290                         tapeposflag = 1;
 291                         aflag = 1;
 292                         break;
 293 #endif
 294                 case 's':
 295                         /* Dumpnum (skip to) for multifile dump tapes. */
 296                         dumpnum = strtol(optarg, &p, 10);
 297                         if (*p)
 298                                 errx(1, "illegal dump number -- %s", optarg);
 299                         if (dumpnum <= 0)
 300                                 errx(1, "dump number must be greater than 0");
 301                         break;
 302                 case 'u':
 303                         uflag = 1;
 304                         break;
 305                 case 'v':
 306                         vflag = 1;
 307                         break;
 308                 case 'V':
 309                         Vflag = 1;
 310                         break;
 311                 case 'X':
 312                         if( !strcmp(optarg,"-") ) {
 313                                 use_stdin("-X");
 314                                 filelist = stdin;
 315                         }
 316                         else
 317                                 if ( !(filelist = fopen(optarg,"r")) )
 318                                         errx(1, "can't open file for reading -- %s", optarg);
 319                         break;
 320                 case 'y':
 321                         yflag = 1;
 322                         break;
 323                 default:
 324                         usage();
 325                 }
 326         argc -= optind;
 327         argv += optind;
 328
 329         if (command == '\0')
 330                 errx(1, "none of C, i, R, r, t or x options specified");
 331
 332 #ifdef USE_QFA
 333         if (!mflag && tapeposflag)
 334                 errx(1, "m and Q options are mutually exclusive");
 335
 336         if (tapeposflag && command != 'i' && command != 'x' && command != 't')
 337                 errx(1, "Q option is not valid for %c command", command);
 338 #endif
 339
 340         if (Afile && command != 'i' && command != 'x' && command != 't')
 341                 errx(1, "A option is not valid for %c command", command);
 342
 343         if (signal(SIGINT, onintr) == SIG_IGN)
 344                 (void) signal(SIGINT, SIG_IGN);
 345         if (signal(SIGTERM, onintr) == SIG_IGN)
 346                 (void) signal(SIGTERM, SIG_IGN);
 347         setlinebuf(stderr);
 348
 349         atexit(cleanup);
 350
 351         if (command == 'C' && inputdev[0] != '/' && strcmp(inputdev, "-")
 352 #ifdef RRESTORE
 353             && !strchr(inputdev, ':')
 354 #endif
 355           ) {
 356                 /* since we chdir into the directory we are comparing
 357                  * to, we must retain the full tape path */
 358                 char wd[MAXPATHLEN], fullpathinput[MAXPATHLEN];
 359                 if (!getcwd(wd, MAXPATHLEN))
 360                         err(1, "can't get current directory");
 361                 snprintf(fullpathinput, MAXPATHLEN, "%s/%s", wd, inputdev);
 362                 fullpathinput[MAXPATHLEN - 1] = '\0';
 363                 setinput(fullpathinput);
 364         }
 365         else
 366                 setinput(inputdev);
 367
 368         wdfd = open(".", O_RDONLY);
 369         if (wdfd < 0)
 370                 err(1, "can't get current directory");
 371
 372         if (argc == 0 && !filelist) {
 373                 argc = 1;
 374                 *--argv = ".";
 375         }
 376
 377 #ifdef USE_QFA
 378         if (tapeposflag) {
 379                 msg("reading QFA positions from %s\n", gTapeposfile);
 380                 if ((gTapeposfp = fopen(gTapeposfile, "r")) == NULL)
 381                         errx(1, "can't open file for reading -- %s",
 382                                 gTapeposfile);
 383                 /* start reading header info */
 384                 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
 385                         errx(1, "not requested format of -- %s", gTapeposfile);
 386                 gTps[strlen(gTps) - 1] = 0;     /* delete end of line */
 387                 if (strcmp(gTps, QFA_MAGIC) != 0)
 388                         errx(1, "not requested format of -- %s", gTapeposfile);
 389                 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
 390                         errx(1, "not requested format of -- %s", gTapeposfile);
 391                 gTps[strlen(gTps) - 1] = 0;
 392                 if (strcmp(gTps, QFA_VERSION) != 0)
 393                         errx(1, "not requested format of -- %s", gTapeposfile);
 394                 /* read dumpdate */
 395                 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
 396                         errx(1, "not requested format of -- %s", gTapeposfile);
 397                 gTps[strlen(gTps) - 1] = 0;
 398                 qfadumpdate = atol(gTps);
 399                 /* read empty line */
 400                 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
 401                         errx(1, "not requested format of -- %s", gTapeposfile);
 402                 gTps[strlen(gTps) - 1] = 0;
 403                 /* read table header line */
 404                 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
 405                         errx(1, "not requested format of -- %s", gTapeposfile);
 406                 gTps[strlen(gTps) - 1] = 0;
 407                 /* end reading header info */
 408                 /* tape position table starts here */
 409                 gSeekstart = ftell(gTapeposfp); /* remember for later use */
 410 #ifdef sunos
 411                 if (GetSCSIIDFromPath(inputdev, &scsiid)) {
 412                         errx(1, "can't get SCSI-ID for %s\n", inputdev);
 413                 }
 414                 if (scsiid < 0) {
 415                         errx(1, "can't get SCSI-ID for %s\n", inputdev);
 416                 }
 417                 sprintf(smtcpath, "/dev/rsmtc%ld,0", scsiid);
 418                 if ((fdsmtc = open(smtcpath, O_RDWR)) == -1) {
 419                         errx(1, "can't open smtc device: %s, %d\n", smtcpath, errno);
 420                 }
 421 #endif
 422         }
 423 #endif /* USE_QFA */
 424
 425         switch (command) {
 426         /*
 427          * Compare contents of tape.
 428          */
 429         case 'C': {
 430                 struct STAT stbuf;
 431
 432                 Vprintf(stdout, "Begin compare restore\n");
 433                 compare_ignore_not_found = 0;
 434                 compare_errors = 0;
 435                 Nflag = 1;
 436                 setup();
 437                 printf("filesys = %s\n", filesys);
 438                 if (STAT(filesys, &stbuf) < 0)
 439                         err(1, "cannot stat directory %s", filesys);
 440                 if (chdir(filesys) < 0)
 441                         err(1, "cannot cd to %s", filesys);
 442                 compare_ignore_not_found = dumptime > 0;
 443                 initsymtable((char *)0);
 444                 extractdirs(1);
 445                 treescan(".", ROOTINO, nodeupdates);
 446                 compareleaves();
 447                 comparedirmodes();
 448                 checkrestore();
 449                 if (compare_errors) {
 450                         printf("Some files were modified!\n");
 451                         exit(2);
 452                 }
 453                 break;
 454         }
 455
 456         /*
 457          * Interactive mode.
 458          */
 459         case 'i':
 460                 setup();
 461                 extractdirs(1);
 462                 initsymtable(NULL);
 463                 runcmdshell();
 464                 break;
 465         /*
 466          * Incremental restoration of a file system.
 467          */
 468         case 'r':
 469                 aflag = 1;      /* in -r or -R mode, -a is default */
 470                 setup();
 471                 if (dumptime > 0) {
 472                         /*
 473                          * This is an incremental dump tape.
 474                          */
 475                         Vprintf(stdout, "Begin incremental restore\n");
 476                         initsymtable(symtbl);
 477                         extractdirs(1);
 478                         removeoldleaves();
 479                         Vprintf(stdout, "Calculate node updates.\n");
 480                         treescan(".", ROOTINO, nodeupdates);
 481                         findunreflinks();
 482                         removeoldnodes();
 483                 } else {
 484                         /*
 485                          * This is a level zero dump tape.
 486                          */
 487                         Vprintf(stdout, "Begin level 0 restore\n");
 488                         initsymtable((char *)0);
 489                         extractdirs(1);
 490                         Vprintf(stdout, "Calculate extraction list.\n");
 491                         treescan(".", ROOTINO, nodeupdates);
 492                 }
 493                 createleaves(symtbl);
 494                 createlinks();
 495                 setdirmodes(FORCE);
 496                 checkrestore();
 497                 if (dflag) {
 498                         Vprintf(stdout, "Verify the directory structure\n");
 499                         treescan(".", ROOTINO, verifyfile);
 500                 }
 501                 dumpsymtable(symtbl, (long)1);
 502                 break;
 503         /*
 504          * Resume an incremental file system restoration.
 505          */
 506         case 'R':
 507                 aflag = 1;      /* in -r or -R mode, -a is default */
 508                 initsymtable(symtbl);
 509                 skipmaps();
 510                 skipdirs();
 511                 createleaves(symtbl);
 512                 createlinks();
 513                 setdirmodes(FORCE);
 514                 checkrestore();
 515                 dumpsymtable(symtbl, (long)1);
 516                 break;
 517
 518 /* handle file names from either text file (-X) or the command line */
 519 #define NEXTFILE(p) \
 520         p = NULL; \
 521         if (argc) { \
 522                 --argc; \
 523                 p = *argv++; \
 524         } \
 525         else if (filelist) { \
 526                 if ((p = fgets(fname, MAXPATHLEN, filelist))) { \
 527                         if ( *p && *(p + strlen(p) - 1) == '\n' ) /* possible null string */ \
 528                                 *(p + strlen(p) - 1) = '\0'; \
 529                         if ( !*p ) /* skip empty lines */ \
 530                                 continue; \
 531                         } \
 532         }
 533
 534         /*
 535          * List contents of tape.
 536          */
 537         case 't':
 538                 setup();
 539                 extractdirs(0);
 540                 initsymtable((char *)0);
 541                 printvolinfo();
 542                 for (;;) {
 543                         NEXTFILE(p);
 544                         if (!p)
 545                                 break;
 546                         canon(p, name, sizeof(name));
 547                         ino = dirlookup(name);
 548                         if (ino == 0)
 549                                 continue;
 550                         treescan(name, ino, listfile);
 551                 }
 552                 break;
 553         /*
 554          * Batch extraction of tape contents.
 555          */
 556         case 'x':
 557 #ifdef DEBUG_QFA
 558                 tistart = time(NULL);
 559 #endif
 560                 setup();
 561                 extractdirs(1);
 562                 initsymtable((char *)0);
 563                 for (;;) {
 564                         NEXTFILE(p);
 565                         if (!p)
 566                                 break;
 567                         canon(p, name, sizeof(name));
 568                         ino = dirlookup(name);
 569                         if (ino == 0)
 570                                 continue;
 571                         if (mflag)
 572                                 pathcheck(name);
 573                         treescan(name, ino, addfile);
 574                 }
 575                 createfiles();
 576                 createlinks();
 577                 setdirmodes(oflag ? FORCE : 0);
 578                 if (dflag)
 579                         checkrestore();
 580 #ifdef sunos
 581                 if (fdsmtc != -1) {
 582                         close(fdsmtc);
 583                 }
 584 #endif /* sunos */
 585 #ifdef DEBUG_QFA
 586                 tiend = time(NULL);
 587                 titaken = tiend - tistart;
 588                 msg("restore took %d:%02d:%02d\n", titaken / 3600,
 589                         (titaken % 3600) / 60, titaken % 60);
 590 #endif /* DEBUG_QFA */
 591                 break;
 592 #ifdef USE_QFA
 593         case 'P':
 594 #ifdef DEBUG_QFA
 595                 tistart = time(NULL);
 596 #endif
 597 #ifdef sunos
 598                 if (GetSCSIIDFromPath(inputdev, &scsiid)) {
 599                         errx(1, "can't get SCSI-ID for %s\n", inputdev);
 600                 }
 601                 if (scsiid < 0) {
 602                         errx(1, "can't get SCSI-ID for %s\n", inputdev);
 603                 }
 604                 sprintf(smtcpath, "/dev/rsmtc%ld,0", scsiid);
 605                 if ((fdsmtc = open(smtcpath, O_RDWR)) == -1) {
 606                         errx(1, "can't open smtc device: %s, %d\n", smtcpath, errno);
 607                 }
 608 #endif /* sunos */
 609                 setup();
 610                 msg("writing QFA positions to %s\n", gTapeposfile);
 611                 (void) umask(orig_umask);
 612                 if ((gTapeposfd = open(gTapeposfile, O_WRONLY|O_CREAT|O_TRUNC,
 613                                        S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP
 614                                        |S_IROTH|S_IWOTH)) < 0)
 615                         errx(1, "can't create tapeposfile\n");
 616                 (void) umask(FORCED_UMASK);
 617                 /* print QFA-file header */
 618                 sprintf(gTps, "%s\n%s\n%ld\n\n", QFA_MAGIC, QFA_VERSION, (unsigned long)spcl.c_date);
 619                 if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
 620                         errx(1, "can't write tapeposfile\n");
 621                 sprintf(gTps, "ino\ttapeno\ttapepos\n");
 622                 if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
 623                         errx(1, "can't write tapeposfile\n");
 624
 625                 extractdirs(1);
 626                 initsymtable((char *)0);
 627                 for (;;) {
 628                         NEXTFILE(p);
 629                         if (!p)
 630                                 break;
 631                         canon(p, name, sizeof(name));
 632                         ino = dirlookup(name);
 633                         if (ino == 0)
 634                                 continue;
 635                         if (mflag)
 636                                 pathcheck(name);
 637                         treescan(name, ino, addfile);
 638                 }
 639                 createfiles();
 640 #ifdef sunos
 641                 if (fdsmtc != -1) {
 642                         close(fdsmtc);
 643                 }
 644 #endif /* sunos */
 645 #ifdef DEBUG_QFA
 646                 tiend = time(NULL);
 647                 titaken = tiend - tistart;
 648                 msg("writing QFA positions took %d:%02d:%02d\n", titaken / 3600,
 649                         (titaken % 3600) / 60, titaken % 60);
 650 #endif /* DEBUG_QFA */
 651                 break;
 652 #endif  /* USE_QFA */
 653         }
 654         exit(0);
 655         /* NOTREACHED */
 656         return 0;       /* gcc shut up */
 657 }
 658
 659 static void
 660 usage(void)
 661 {
 662         char white[MAXPATHLEN];
 663         const char *ext2ver, *ext2date;
 664
 665         memset(white, ' ', MAXPATHLEN);
 666         white[MIN(strlen(__progname), MAXPATHLEN - 1)] = '\0';
 667
 668 #ifdef __linux__
 669         ext2fs_get_library_version(&ext2ver, &ext2date);
 670         (void)fprintf(stderr, "%s %s (using libext2fs %s of %s)\n",
 671                       __progname, _DUMP_VERSION, ext2ver, ext2date);
 672 #else
 673         (void)fprintf(stderr, "%s %s\n", __progname, _DUMP_VERSION);
 674 #endif
 675
 676 #ifdef KERBEROS
 677 #define kerbflag "k"
 678 #else
 679 #define kerbflag
 680 #endif
 681
 682 #ifdef USE_QFA
 683 #define qfaflag "[-Q file] "
 684 #else
 685 #define qfaflag
 686 #endif
 687
 688         fprintf(stderr,
 689                 "usage:"
 690                 "\t%s -C [-cdH" kerbflag "lMvVy] [-b blocksize] [-D filesystem] [-f file]\n"
 691                 "\t%s    [-F script] [-L limit] [-s fileno]\n"
 692                 "\t%s -i [-acdhH" kerbflag "lmMouvVy] [-A file] [-b blocksize] [-f file]\n"
 693                 "\t%s    [-F script] " qfaflag "[-s fileno]\n"
 694 #ifdef USE_QFA
 695                 "\t%s -P file [-acdhH" kerbflag "lmMuvVy] [-A file] [-b blocksize]\n"
 696                 "\t%s    [-f file] [-F script] [-s fileno] [-X filelist] [file ...]\n"
 697 #endif
 698                 "\t%s -r [-cdH" kerbflag "lMuvVy] [-b blocksize] [-f file] [-F script]\n"
 699                 "\t%s    [-s fileno] [-T directory]\n"
 700                 "\t%s -R [-cdH" kerbflag "lMuvVy] [-b blocksize] [-f file] [-F script]\n"
 701                 "\t%s    [-s fileno] [-T directory]\n"
 702                 "\t%s -t [-cdhH" kerbflag "lMuvVy] [-A file] [-b blocksize] [-f file]\n"
 703                 "\t%s    [-F script] " qfaflag "[-s fileno] [-X filelist] [file ...]\n"
 704                 "\t%s -x [-acdhH" kerbflag "lmMouvVy] [-A file] [-b blocksize] [-f file]\n"
 705                 "\t%s    [-F script] " qfaflag "[-s fileno] [-X filelist] [file ...]\n",
 706                 __progname, white,
 707                 __progname, white,
 708 #ifdef USE_QFA
 709                 __progname, white,
 710 #endif
 711                 __progname, white,
 712                 __progname, white,
 713                 __progname, white,
 714                 __progname, white);
 715         exit(1);
 716 }
 717
 718 /*
 719  * obsolete --
 720  *      Change set of key letters and ordered arguments into something
 721  *      getopt(3) will like.
 722  */
 723 static void
 724 obsolete(int *argcp, char **argvp[])
 725 {
 726         int argc, flags;
 727         char *ap, **argv, *flagsp = NULL, **nargv, *p = NULL;
 728
 729         /* Setup. */
 730         argv = *argvp;
 731         argc = *argcp;
 732
 733         /* Return if no arguments or first argument has leading dash. */
 734         ap = argv[1];
 735         if (argc == 1 || *ap == '-')
 736                 return;
 737
 738         /* Allocate space for new arguments. */
 739         if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
 740             (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
 741                 err(1, "malloc args");
 742
 743         *nargv++ = *argv;
 744         argv += 2, argc -= 2;
 745
 746         for (flags = 0; *ap; ++ap) {
 747                 switch (*ap) {
 748                 case 'A':
 749                 case 'b':
 750                 case 'D':
 751                 case 'f':
 752                 case 'F':
 753                 case 'H':
 754                 case 'L':
 755                 case 'Q':
 756                 case 's':
 757                 case 'T':
 758                 case 'X':
 759                         if (*argv == NULL) {
 760                                 warnx("option requires an argument -- %c", *ap);
 761                                 usage();
 762                         }
 763                         if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
 764                                 err(1, "malloc arg");
 765                         nargv[0][0] = '-';
 766                         nargv[0][1] = *ap;
 767                         (void)strcpy(&nargv[0][2], *argv);
 768                         ++argv;
 769                         ++nargv;
 770                         break;
 771                 default:
 772                         if (!flags) {
 773                                 *p++ = '-';
 774                                 flags = 1;
 775                         }
 776                         *p++ = *ap;
 777                         break;
 778                 }
 779         }
 780
 781         /* Terminate flags. */
 782         if (flags) {
 783                 *p = '\0';
 784                 *nargv++ = flagsp;
 785         }
 786
 787         /* Copy remaining arguments. */
 788         while ((*nargv++ = *argv++));
 789
 790         /* Update argument count. */
 791         *argcp = nargv - *argvp - 1;
 792 }
 793
 794 /*
 795  * use_stdin --
 796  *      reserve stdin for opt (avoid conflicts)
 797  */
 798 void
 799 use_stdin(const char *opt)
 800 {
 801         if (stdin_opt)
 802                 errx(1, "can't handle standard input for both %s and %s",
 803                         stdin_opt, opt);
 804         stdin_opt = opt;
 805 }