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 1.51 2007/02/22 20:12:50 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 #ifdef TRANSSELINUX                     /*GAN6May06 SELinux MLS */
 131 int     transselinuxflag = 0;
 132 char    *transselinuxarg = NULL;
 133 #endif
 134
 135 long smtc_errno;
 136
 137 #if defined(__linux__) || defined(sunos)
 138 char    *__progname;
 139 #endif
 140
 141 static void obsolete __P((int *, char **[]));
 142 static void usage __P((void));
 143 static void use_stdin __P((const char *));
 144
 145 #define FORCED_UMASK (077)
 146
 147 int
 148 main(int argc, char *argv[])
 149 {
 150         int ch;
 151         dump_ino_t ino;
 152         char *inputdev = _PATH_DEFTAPE;
 153         char *symtbl = "./restoresymtable";
 154         char *p, name[MAXPATHLEN];
 155         FILE *filelist = NULL;
 156         char fname[MAXPATHLEN];
 157         mode_t orig_umask;
 158 #ifdef DEBUG_QFA
 159         time_t tistart, tiend, titaken;
 160 #endif
 161 #ifdef USE_QFA
 162         tapeposflag = 0;
 163         createtapeposflag = 0;
 164 #endif /* USE_QFA */
 165 #ifdef TRANSSELINUX                     /*GAN6May06 SELinux MLS */
 166         char transselinuxopt;
 167 #endif
 168
 169         /* Temp files should *not* be readable.  We set permissions later. */
 170         orig_umask = umask(FORCED_UMASK);
 171         filesys[0] = '\0';
 172 #if defined(__linux__) || defined(sunos)
 173         __progname = argv[0];
 174 #endif
 175
 176         if (argc < 2)
 177                 usage();
 178
 179         if ((inputdev = getenv("TAPE")) == NULL)
 180                 inputdev = _PATH_DEFTAPE;
 181         if ((tmpdir = getenv("TMPDIR")) == NULL)
 182                 tmpdir = _PATH_TMP;
 183         if ((tmpdir = strdup(tmpdir)) == NULL)
 184                 err(1, "malloc tmpdir");
 185         for (p = tmpdir + strlen(tmpdir) - 1; p >= tmpdir && *p == '/'; p--)
 186                 ;
 187         obsolete(&argc, &argv);
 188         while ((ch = getopt(argc, argv,
 189                 "aA:b:CcdD:"
 190 #ifdef TRANSSELINUX                     /*GAN6May06 SELinux MLS */
 191                 "eE:"
 192 #endif
 193                 "f:F:hH:i"
 194 #ifdef KERBEROS
 195                 "k"
 196 #endif
 197                 "lL:mMNo"
 198 #ifdef USE_QFA
 199                 "P:Q:"
 200 #endif
 201                 "Rrs:tT:uvVxX:y")) != -1)
 202                 switch(ch) {
 203                 case 'a':
 204                         aflag = 1;
 205                         break;
 206                 case 'A':
 207                         Afile = optarg;
 208                         aflag = 1;
 209                         break;
 210                 case 'b':
 211                         /* Change default tape blocksize. */
 212                         bflag = 1;
 213                         ntrec = strtol(optarg, &p, 10);
 214                         if (*p)
 215                                 errx(1, "illegal blocksize -- %s", optarg);
 216                         if (ntrec <= 0)
 217                                 errx(1, "block size must be greater than 0");
 218                         break;
 219                 case 'c':
 220                         cvtflag = 1;
 221                         break;
 222                 case 'D':
 223                         strncpy(filesys, optarg, NAMELEN);
 224                         filesys[NAMELEN - 1] = '\0';
 225                         break;
 226 #ifdef TRANSSELINUX                     /*GAN6May06 SELinux MLS */
 227                 case 'e':
 228                         transselinuxflag = 1;
 229                         transselinuxopt = ch;
 230                         break;
 231                 case 'E':
 232                         transselinuxflag = 1;
 233                         transselinuxarg = optarg;
 234                         transselinuxopt = ch;
 235                         break;
 236 #endif
 237                 case 'T':
 238                         tmpdir = optarg;
 239                         break;
 240                 case 'd':
 241                         dflag = 1;
 242                         break;
 243                 case 'f':
 244                         if( !strcmp(optarg,"-") )
 245                                 use_stdin("-f");
 246                         inputdev = optarg;
 247                         break;
 248                 case 'F':
 249                         bot_script = optarg;
 250                         break;
 251                 case 'h':
 252                         hflag = 0;
 253                         break;
 254                 case 'H':
 255                         dirhash_size = strtol(optarg, &p, 10);
 256                         if (*p)
 257                                 errx(1, "illegal hash size -- %s", optarg);
 258                         if (dirhash_size < 1)
 259                                 errx(1, "hash size must be greater than 0");
 260                         break;
 261 #ifdef KERBEROS
 262                 case 'k':
 263                         dokerberos = 1;
 264                         break;
 265 #endif
 266                 case 'C':
 267                 case 'i':
 268 #ifdef USE_QFA
 269                 case 'P':
 270 #endif
 271                 case 'R':
 272                 case 'r':
 273                 case 't':
 274                 case 'x':
 275                         if (command != '\0')
 276                                 errx(1,
 277                                     "%c and %c options are mutually exclusive",
 278                                     ch, command);
 279                         command = ch;
 280 #ifdef USE_QFA
 281                         if (ch == 'P') {
 282                                 gTapeposfile = optarg;
 283                                 createtapeposflag = 1;
 284                         }
 285 #endif
 286
 287                         break;
 288                 case 'l':
 289                         lflag = 1;
 290                         break;
 291                 case 'L':
 292                         Lflag = strtol(optarg, &p, 10);
 293                         if (*p)
 294                                 errx(1, "illegal limit -- %s", optarg);
 295                         if (Lflag < 0)
 296                                 errx(1, "limit must be greater than 0");
 297                         break;
 298                 case 'm':
 299                         mflag = 0;
 300                         break;
 301                 case 'M':
 302                         Mflag = 1;
 303                         break;
 304                 case 'N':
 305                         Nflag = 1;
 306                         break;
 307                 case 'o':
 308                         oflag = 1;
 309                         break;
 310 #ifdef USE_QFA
 311                 case 'Q':
 312                         gTapeposfile = optarg;
 313                         tapeposflag = 1;
 314                         aflag = 1;
 315                         break;
 316 #endif
 317                 case 's':
 318                         /* Dumpnum (skip to) for multifile dump tapes. */
 319                         dumpnum = strtol(optarg, &p, 10);
 320                         if (*p)
 321                                 errx(1, "illegal dump number -- %s", optarg);
 322                         if (dumpnum <= 0)
 323                                 errx(1, "dump number must be greater than 0");
 324                         break;
 325                 case 'u':
 326                         uflag = 1;
 327                         break;
 328                 case 'v':
 329                         vflag = 1;
 330                         break;
 331                 case 'V':
 332                         Vflag = 1;
 333                         break;
 334                 case 'X':
 335                         if( !strcmp(optarg,"-") ) {
 336                                 use_stdin("-X");
 337                                 filelist = stdin;
 338                         }
 339                         else
 340                                 if ( !(filelist = fopen(optarg,"r")) )
 341                                         errx(1, "can't open file for reading -- %s", optarg);
 342                         break;
 343                 case 'y':
 344                         yflag = 1;
 345                         break;
 346                 default:
 347                         usage();
 348                 }
 349         argc -= optind;
 350         argv += optind;
 351
 352         if (command == '\0')
 353                 errx(1, "none of C, i, R, r, t or x options specified");
 354
 355 #ifdef USE_QFA
 356         if (!mflag && tapeposflag)
 357                 errx(1, "m and Q options are mutually exclusive");
 358
 359         if (tapeposflag && command != 'i' && command != 'x' && command != 't')
 360                 errx(1, "Q option is not valid for %c command", command);
 361 #endif
 362
 363         if (Afile && command != 'i' && command != 'x' && command != 't')
 364                 errx(1, "A option is not valid for %c command", command);
 365
 366 #ifdef TRANSSELINUX                     /*GAN6May06 SELinux MLS */
 367         if (transselinuxflag && !strchr("CirRx", command))
 368                 errx(1, "%c option is not valid for %c command", transselinuxopt, command);
 369 #endif
 370
 371         if (signal(SIGINT, onintr) == SIG_IGN)
 372                 (void) signal(SIGINT, SIG_IGN);
 373         if (signal(SIGTERM, onintr) == SIG_IGN)
 374                 (void) signal(SIGTERM, SIG_IGN);
 375         setlinebuf(stderr);
 376
 377         atexit(cleanup);
 378
 379         if (command == 'C' && inputdev[0] != '/' && strcmp(inputdev, "-")
 380 #ifdef RRESTORE
 381             && !strchr(inputdev, ':')
 382 #endif
 383           ) {
 384                 /* since we chdir into the directory we are comparing
 385                  * to, we must retain the full tape path */
 386                 char wd[MAXPATHLEN], fullpathinput[MAXPATHLEN];
 387                 if (!getcwd(wd, MAXPATHLEN))
 388                         err(1, "can't get current directory");
 389                 snprintf(fullpathinput, MAXPATHLEN, "%s/%s", wd, inputdev);
 390                 fullpathinput[MAXPATHLEN - 1] = '\0';
 391                 setinput(fullpathinput);
 392         }
 393         else
 394                 setinput(inputdev);
 395
 396         wdfd = open(".", O_RDONLY);
 397         if (wdfd < 0)
 398                 err(1, "can't get current directory");
 399
 400         if (argc == 0 && !filelist) {
 401                 argc = 1;
 402                 *--argv = ".";
 403         }
 404
 405 #ifdef USE_QFA
 406         if (tapeposflag) {
 407                 msg("reading QFA positions from %s\n", gTapeposfile);
 408                 if ((gTapeposfp = fopen(gTapeposfile, "r")) == NULL)
 409                         errx(1, "can't open file for reading -- %s",
 410                                 gTapeposfile);
 411                 /* start reading header info */
 412                 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
 413                         errx(1, "not requested format of -- %s", gTapeposfile);
 414                 gTps[strlen(gTps) - 1] = 0;     /* delete end of line */
 415                 if (strcmp(gTps, QFA_MAGIC) != 0)
 416                         errx(1, "not requested format of -- %s", gTapeposfile);
 417                 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
 418                         errx(1, "not requested format of -- %s", gTapeposfile);
 419                 gTps[strlen(gTps) - 1] = 0;
 420                 if (strcmp(gTps, QFA_VERSION) != 0)
 421                         errx(1, "not requested format of -- %s", gTapeposfile);
 422                 /* read dumpdate */
 423                 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
 424                         errx(1, "not requested format of -- %s", gTapeposfile);
 425                 gTps[strlen(gTps) - 1] = 0;
 426                 qfadumpdate = atol(gTps);
 427                 /* read empty line */
 428                 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
 429                         errx(1, "not requested format of -- %s", gTapeposfile);
 430                 gTps[strlen(gTps) - 1] = 0;
 431                 /* read table header line */
 432                 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
 433                         errx(1, "not requested format of -- %s", gTapeposfile);
 434                 gTps[strlen(gTps) - 1] = 0;
 435                 /* end reading header info */
 436                 /* tape position table starts here */
 437                 gSeekstart = ftell(gTapeposfp); /* remember for later use */
 438 #ifdef sunos
 439                 if (GetSCSIIDFromPath(inputdev, &scsiid)) {
 440                         errx(1, "can't get SCSI-ID for %s\n", inputdev);
 441                 }
 442                 if (scsiid < 0) {
 443                         errx(1, "can't get SCSI-ID for %s\n", inputdev);
 444                 }
 445                 sprintf(smtcpath, "/dev/rsmtc%ld,0", scsiid);
 446                 if ((fdsmtc = open(smtcpath, O_RDWR)) == -1) {
 447                         errx(1, "can't open smtc device: %s, %d\n", smtcpath, errno);
 448                 }
 449 #endif
 450         }
 451 #endif /* USE_QFA */
 452
 453         switch (command) {
 454         /*
 455          * Compare contents of tape.
 456          */
 457         case 'C': {
 458                 struct STAT stbuf;
 459
 460                 Vprintf(stdout, "Begin compare restore\n");
 461                 compare_ignore_not_found = 0;
 462                 compare_errors = 0;
 463                 Nflag = 1;
 464                 setup();
 465                 printf("filesys = %s\n", filesys);
 466                 if (STAT(filesys, &stbuf) < 0)
 467                         err(1, "cannot stat directory %s", filesys);
 468                 if (chdir(filesys) < 0)
 469                         err(1, "cannot cd to %s", filesys);
 470                 compare_ignore_not_found = dumptime > 0;
 471                 initsymtable((char *)0);
 472                 extractdirs(1);
 473                 treescan(".", ROOTINO, nodeupdates);
 474                 compareleaves();
 475                 comparedirmodes();
 476                 checkrestore();
 477                 if (compare_errors) {
 478                         printf("Some files were modified!  %d compare errors\n", compare_errors);
 479                         exit(2);
 480                 }
 481                 break;
 482         }
 483
 484         /*
 485          * Interactive mode.
 486          */
 487         case 'i':
 488                 setup();
 489                 extractdirs(1);
 490                 initsymtable(NULL);
 491                 runcmdshell();
 492                 break;
 493         /*
 494          * Incremental restoration of a file system.
 495          */
 496         case 'r':
 497                 aflag = 1;      /* in -r or -R mode, -a is default */
 498                 setup();
 499                 if (dumptime > 0) {
 500                         /*
 501                          * This is an incremental dump tape.
 502                          */
 503                         Vprintf(stdout, "Begin incremental restore\n");
 504                         initsymtable(symtbl);
 505                         extractdirs(1);
 506                         removeoldleaves();
 507                         Vprintf(stdout, "Calculate node updates.\n");
 508                         treescan(".", ROOTINO, nodeupdates);
 509                         findunreflinks();
 510                         removeoldnodes();
 511                 } else {
 512                         /*
 513                          * This is a level zero dump tape.
 514                          */
 515                         Vprintf(stdout, "Begin level 0 restore\n");
 516                         initsymtable((char *)0);
 517                         extractdirs(1);
 518                         Vprintf(stdout, "Calculate extraction list.\n");
 519                         treescan(".", ROOTINO, nodeupdates);
 520                 }
 521                 createleaves(symtbl);
 522                 createlinks();
 523                 setdirmodes(FORCE);
 524                 checkrestore();
 525                 if (dflag) {
 526                         Vprintf(stdout, "Verify the directory structure\n");
 527                         treescan(".", ROOTINO, verifyfile);
 528                 }
 529                 dumpsymtable(symtbl, (long)1);
 530                 break;
 531         /*
 532          * Resume an incremental file system restoration.
 533          */
 534         case 'R':
 535                 aflag = 1;      /* in -r or -R mode, -a is default */
 536                 initsymtable(symtbl);
 537                 skipmaps();
 538                 skipdirs();
 539                 createleaves(symtbl);
 540                 createlinks();
 541                 setdirmodes(FORCE);
 542                 checkrestore();
 543                 dumpsymtable(symtbl, (long)1);
 544                 break;
 545
 546 /* handle file names from either text file (-X) or the command line */
 547 #define NEXTFILE(p) \
 548         p = NULL; \
 549         if (argc) { \
 550                 --argc; \
 551                 p = *argv++; \
 552         } \
 553         else if (filelist) { \
 554                 if ((p = fgets(fname, MAXPATHLEN, filelist))) { \
 555                         if ( *p && *(p + strlen(p) - 1) == '\n' ) /* possible null string */ \
 556                                 *(p + strlen(p) - 1) = '\0'; \
 557                         if ( !*p ) /* skip empty lines */ \
 558                                 continue; \
 559                         } \
 560         }
 561
 562         /*
 563          * List contents of tape.
 564          */
 565         case 't':
 566                 setup();
 567                 extractdirs(0);
 568                 initsymtable((char *)0);
 569                 printvolinfo();
 570                 for (;;) {
 571                         NEXTFILE(p);
 572                         if (!p)
 573                                 break;
 574                         canon(p, name, sizeof(name));
 575                         ino = dirlookup(name);
 576                         if (ino == 0)
 577                                 continue;
 578                         treescan(name, ino, listfile);
 579                 }
 580                 break;
 581         /*
 582          * Batch extraction of tape contents.
 583          */
 584         case 'x':
 585 #ifdef DEBUG_QFA
 586                 tistart = time(NULL);
 587 #endif
 588                 setup();
 589                 extractdirs(1);
 590                 initsymtable((char *)0);
 591                 for (;;) {
 592                         NEXTFILE(p);
 593                         if (!p)
 594                                 break;
 595                         canon(p, name, sizeof(name));
 596                         ino = dirlookup(name);
 597                         if (ino == 0)
 598                                 continue;
 599                         if (mflag)
 600                                 pathcheck(name);
 601                         treescan(name, ino, addfile);
 602                 }
 603                 createfiles();
 604                 createlinks();
 605                 setdirmodes(oflag ? FORCE : 0);
 606                 if (dflag)
 607                         checkrestore();
 608 #ifdef sunos
 609                 if (fdsmtc != -1) {
 610                         close(fdsmtc);
 611                 }
 612 #endif /* sunos */
 613 #ifdef DEBUG_QFA
 614                 tiend = time(NULL);
 615                 titaken = tiend - tistart;
 616                 msg("restore took %d:%02d:%02d\n", titaken / 3600,
 617                         (titaken % 3600) / 60, titaken % 60);
 618 #endif /* DEBUG_QFA */
 619                 break;
 620 #ifdef USE_QFA
 621         case 'P':
 622 #ifdef DEBUG_QFA
 623                 tistart = time(NULL);
 624 #endif
 625 #ifdef sunos
 626                 if (GetSCSIIDFromPath(inputdev, &scsiid)) {
 627                         errx(1, "can't get SCSI-ID for %s\n", inputdev);
 628                 }
 629                 if (scsiid < 0) {
 630                         errx(1, "can't get SCSI-ID for %s\n", inputdev);
 631                 }
 632                 sprintf(smtcpath, "/dev/rsmtc%ld,0", scsiid);
 633                 if ((fdsmtc = open(smtcpath, O_RDWR)) == -1) {
 634                         errx(1, "can't open smtc device: %s, %d\n", smtcpath, errno);
 635                 }
 636 #endif /* sunos */
 637                 setup();
 638                 msg("writing QFA positions to %s\n", gTapeposfile);
 639                 (void) umask(orig_umask);
 640                 if ((gTapeposfd = open(gTapeposfile, O_WRONLY|O_CREAT|O_TRUNC,
 641                                        S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP
 642                                        |S_IROTH|S_IWOTH)) < 0)
 643                         errx(1, "can't create tapeposfile\n");
 644                 (void) umask(FORCED_UMASK);
 645                 /* print QFA-file header */
 646                 sprintf(gTps, "%s\n%s\n%ld\n\n", QFA_MAGIC, QFA_VERSION, (unsigned long)spcl.c_date);
 647                 if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
 648                         errx(1, "can't write tapeposfile\n");
 649                 sprintf(gTps, "ino\ttapeno\ttapepos\n");
 650                 if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
 651                         errx(1, "can't write tapeposfile\n");
 652
 653                 extractdirs(1);
 654                 initsymtable((char *)0);
 655                 for (;;) {
 656                         NEXTFILE(p);
 657                         if (!p)
 658                                 break;
 659                         canon(p, name, sizeof(name));
 660                         ino = dirlookup(name);
 661                         if (ino == 0)
 662                                 continue;
 663                         if (mflag)
 664                                 pathcheck(name);
 665                         treescan(name, ino, addfile);
 666                 }
 667                 createfiles();
 668 #ifdef sunos
 669                 if (fdsmtc != -1) {
 670                         close(fdsmtc);
 671                 }
 672 #endif /* sunos */
 673 #ifdef DEBUG_QFA
 674                 tiend = time(NULL);
 675                 titaken = tiend - tistart;
 676                 msg("writing QFA positions took %d:%02d:%02d\n", titaken / 3600,
 677                         (titaken % 3600) / 60, titaken % 60);
 678 #endif /* DEBUG_QFA */
 679                 break;
 680 #endif  /* USE_QFA */
 681         }
 682         exit(0);
 683         /* NOTREACHED */
 684         return 0;       /* gcc shut up */
 685 }
 686
 687 static void
 688 usage(void)
 689 {
 690         char white[MAXPATHLEN];
 691         const char *ext2ver, *ext2date;
 692
 693         memset(white, ' ', MAXPATHLEN);
 694         white[MIN(strlen(__progname), MAXPATHLEN - 1)] = '\0';
 695
 696 #ifdef __linux__
 697         ext2fs_get_library_version(&ext2ver, &ext2date);
 698         (void)fprintf(stderr, "%s %s (using libext2fs %s of %s)\n",
 699                       __progname, _DUMP_VERSION, ext2ver, ext2date);
 700 #else
 701         (void)fprintf(stderr, "%s %s\n", __progname, _DUMP_VERSION);
 702 #endif
 703
 704 #ifdef KERBEROS
 705 #define kerbflag "k"
 706 #else
 707 #define kerbflag
 708 #endif
 709
 710 #ifdef USE_QFA
 711 #define qfaflag "[-Q file] "
 712 #else
 713 #define qfaflag
 714 #endif
 715
 716 #ifdef TRANSSELINUX                     /*GAN6May06 SELinux MLS */
 717 # define tseflag "e"
 718 # define tsEflag "[-E mls] "
 719 #else
 720 # define tseflag
 721 # define tsEflag
 722 #endif
 723         fprintf(stderr,
 724                 "usage:"
 725                 "\t%s -C [-cd" tseflag "H" kerbflag "lMvVy] [-b blocksize] [-D filesystem] " tsEflag"\n"
 726                 "\t%s    [-f file] [-F script] [-L limit] [-s fileno]\n"
 727                 "\t%s -i [-acd" tseflag "hH" kerbflag "lmMouvVy] [-A file] [-b blocksize] " tsEflag"\n"
 728                 "\t%s    [-f file] [-F script] " qfaflag "[-s fileno]\n"
 729 #ifdef USE_QFA
 730                 "\t%s -P file [-acdhH" kerbflag "lmMuvVy] [-A file] [-b blocksize]\n"
 731                 "\t%s    [-f file] [-F script] [-s fileno] [-X filelist] [file ...]\n"
 732 #endif
 733                 "\t%s -r [-cd" tseflag "H" kerbflag "lMuvVy] [-b blocksize] " tsEflag"\n"
 734                 "\t%s    [-f file] [-F script] [-s fileno] [-T directory]\n"
 735                 "\t%s -R [-cd" tseflag "H" kerbflag "lMuvVy] [-b blocksize] " tsEflag"\n"
 736                 "\t%s    [-f file] [-F script] [-s fileno] [-T directory]\n"
 737                 "\t%s -t [-cdhH" kerbflag "lMuvVy] [-A file] [-b blocksize]\n"
 738                 "\t%s    [-f file] [-F script] " qfaflag "[-s fileno] [-X filelist] [file ...]\n"
 739                 "\t%s -x [-acd" tseflag "hH" kerbflag "lmMouvVy] [-A file] [-b blocksize] " tsEflag"\n"
 740                 "\t%s    [-f file] [-F script] " qfaflag "[-s fileno] [-X filelist] [file ...]\n",
 741                 __progname, white,
 742                 __progname, white,
 743 #ifdef USE_QFA
 744                 __progname, white,
 745 #endif
 746                 __progname, white,
 747                 __progname, white,
 748                 __progname, white,
 749                 __progname, white);
 750         exit(1);
 751 }
 752
 753 /*
 754  * obsolete --
 755  *      Change set of key letters and ordered arguments into something
 756  *      getopt(3) will like.
 757  */
 758 static void
 759 obsolete(int *argcp, char **argvp[])
 760 {
 761         int argc, flags;
 762         char *ap, **argv, *flagsp = NULL, **nargv, *p = NULL;
 763
 764         /* Setup. */
 765         argv = *argvp;
 766         argc = *argcp;
 767
 768         /* Return if no arguments or first argument has leading dash. */
 769         ap = argv[1];
 770         if (argc == 1 || *ap == '-')
 771                 return;
 772
 773         /* Allocate space for new arguments. */
 774         if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
 775             (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
 776                 err(1, "malloc args");
 777
 778         *nargv++ = *argv;
 779         argv += 2, argc -= 2;
 780
 781         for (flags = 0; *ap; ++ap) {
 782                 switch (*ap) {
 783                 case 'A':
 784                 case 'b':
 785                 case 'D':
 786                 case 'f':
 787                 case 'F':
 788                 case 'H':
 789                 case 'L':
 790                 case 'Q':
 791                 case 's':
 792                 case 'T':
 793                 case 'X':
 794                         if (*argv == NULL) {
 795                                 warnx("option requires an argument -- %c", *ap);
 796                                 usage();
 797                         }
 798                         if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
 799                                 err(1, "malloc arg");
 800                         nargv[0][0] = '-';
 801                         nargv[0][1] = *ap;
 802                         (void)strcpy(&nargv[0][2], *argv);
 803                         ++argv;
 804                         ++nargv;
 805                         break;
 806                 default:
 807                         if (!flags) {
 808                                 *p++ = '-';
 809                                 flags = 1;
 810                         }
 811                         *p++ = *ap;
 812                         break;
 813                 }
 814         }
 815
 816         /* Terminate flags. */
 817         if (flags) {
 818                 *p = '\0';
 819                 *nargv++ = flagsp;
 820         }
 821
 822         /* Copy remaining arguments. */
 823         while ((*nargv++ = *argv++));
 824
 825         /* Update argument count. */
 826         *argcp = nargv - *argvp - 1;
 827 }
 828
 829 /*
 830  * use_stdin --
 831  *      reserve stdin for opt (avoid conflicts)
 832  */
 833 void
 834 use_stdin(const char *opt)
 835 {
 836         if (stdin_opt)
 837                 errx(1, "can't handle standard input for both %s and %s",
 838                         stdin_opt, opt);
 839         stdin_opt = opt;
 840 }