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 1.49 2005/01/14 13:04:56 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
 117 #ifdef USE_QFA
 118 FILE    *gTapeposfp;
 119 char    *gTapeposfile;
 120 char    gTps[255];
 121 long    gSeekstart;
 122 int     tapeposflag;
 123 int     gTapeposfd;
 124 int     createtapeposflag;
 125 unsigned long qfadumpdate;
 126 long long curtapepos;
 127 #endif /* USE_QFA */
 128
 129 long smtc_errno;
 130
 131 #if defined(__linux__) || defined(sunos)
 132 char    *__progname;
 133 #endif
 134
 135 static void obsolete __P((int *, char **[]));
 136 static void usage __P((void));
 137 static void use_stdin __P((const char *));
 138
 139 #define FORCED_UMASK (077)
 140
 141 int
 142 main(int argc, char *argv[])
 143 {
 144         int ch;
 145         dump_ino_t ino;
 146         char *inputdev = _PATH_DEFTAPE;
 147         char *symtbl = "./restoresymtable";
 148         char *p, name[MAXPATHLEN];
 149         FILE *filelist = NULL;
 150         char fname[MAXPATHLEN];
 151         mode_t orig_umask;
 152 #ifdef DEBUG_QFA
 153         time_t tistart, tiend, titaken;
 154 #endif
 155 #ifdef USE_QFA
 156         tapeposflag = 0;
 157         createtapeposflag = 0;
 158 #endif /* USE_QFA */
 159
 160         /* Temp files should *not* be readable.  We set permissions later. */
 161         orig_umask = umask(FORCED_UMASK);
 162         filesys[0] = '\0';
 163 #if defined(__linux__) || defined(sunos)
 164         __progname = argv[0];
 165 #endif
 166
 167         if (argc < 2)
 168                 usage();
 169
 170         if ((inputdev = getenv("TAPE")) == NULL)
 171                 inputdev = _PATH_DEFTAPE;
 172         if ((tmpdir = getenv("TMPDIR")) == NULL)
 173                 tmpdir = _PATH_TMP;
 174         if ((tmpdir = strdup(tmpdir)) == NULL)
 175                 err(1, "malloc tmpdir");
 176         for (p = tmpdir + strlen(tmpdir) - 1; p >= tmpdir && *p == '/'; p--)
 177                 ;
 178         obsolete(&argc, &argv);
 179         while ((ch = getopt(argc, argv,
 180                 "aA:b:CcdD:f:F:hi"
 181 #ifdef KERBEROS
 182                 "k"
 183 #endif
 184                 "lL:mMNo"
 185 #ifdef USE_QFA
 186                 "P:Q:"
 187 #endif
 188                 "Rrs:tT:uvVxX:y")) != -1)
 189                 switch(ch) {
 190                 case 'a':
 191                         aflag = 1;
 192                         break;
 193                 case 'A':
 194                         Afile = optarg;
 195                         aflag = 1;
 196                         break;
 197                 case 'b':
 198                         /* Change default tape blocksize. */
 199                         bflag = 1;
 200                         ntrec = strtol(optarg, &p, 10);
 201                         if (*p)
 202                                 errx(1, "illegal blocksize -- %s", optarg);
 203                         if (ntrec <= 0)
 204                                 errx(1, "block size must be greater than 0");
 205                         break;
 206                 case 'c':
 207                         cvtflag = 1;
 208                         break;
 209                 case 'D':
 210                         strncpy(filesys, optarg, NAMELEN);
 211                         filesys[NAMELEN - 1] = '\0';
 212                         break;
 213                 case 'T':
 214                         tmpdir = optarg;
 215                         break;
 216                 case 'd':
 217                         dflag = 1;
 218                         break;
 219                 case 'f':
 220                         if( !strcmp(optarg,"-") )
 221                                 use_stdin("-f");
 222                         inputdev = optarg;
 223                         break;
 224                 case 'F':
 225                         bot_script = optarg;
 226                         break;
 227                 case 'h':
 228                         hflag = 0;
 229                         break;
 230 #ifdef KERBEROS
 231                 case 'k':
 232                         dokerberos = 1;
 233                         break;
 234 #endif
 235                 case 'C':
 236                 case 'i':
 237 #ifdef USE_QFA
 238                 case 'P':
 239 #endif
 240                 case 'R':
 241                 case 'r':
 242                 case 't':
 243                 case 'x':
 244                         if (command != '\0')
 245                                 errx(1,
 246                                     "%c and %c options are mutually exclusive",
 247                                     ch, command);
 248                         command = ch;
 249 #ifdef USE_QFA
 250                         if (ch == 'P') {
 251                                 gTapeposfile = optarg;
 252                                 createtapeposflag = 1;
 253                         }
 254 #endif
 255
 256                         break;
 257                 case 'l':
 258                         lflag = 1;
 259                         break;
 260                 case 'L':
 261                         Lflag = strtol(optarg, &p, 10);
 262                         if (*p)
 263                                 errx(1, "illegal limit -- %s", optarg);
 264                         if (Lflag < 0)
 265                                 errx(1, "limit must be greater than 0");
 266                         break;
 267                 case 'm':
 268                         mflag = 0;
 269                         break;
 270                 case 'M':
 271                         Mflag = 1;
 272                         break;
 273                 case 'N':
 274                         Nflag = 1;
 275                         break;
 276                 case 'o':
 277                         oflag = 1;
 278                         break;
 279 #ifdef USE_QFA
 280                 case 'Q':
 281                         gTapeposfile = optarg;
 282                         tapeposflag = 1;
 283                         aflag = 1;
 284                         break;
 285 #endif
 286                 case 's':
 287                         /* Dumpnum (skip to) for multifile dump tapes. */
 288                         dumpnum = strtol(optarg, &p, 10);
 289                         if (*p)
 290                                 errx(1, "illegal dump number -- %s", optarg);
 291                         if (dumpnum <= 0)
 292                                 errx(1, "dump number must be greater than 0");
 293                         break;
 294                 case 'u':
 295                         uflag = 1;
 296                         break;
 297                 case 'v':
 298                         vflag = 1;
 299                         break;
 300                 case 'V':
 301                         Vflag = 1;
 302                         break;
 303                 case 'X':
 304                         if( !strcmp(optarg,"-") ) {
 305                                 use_stdin("-X");
 306                                 filelist = stdin;
 307                         }
 308                         else
 309                                 if ( !(filelist = fopen(optarg,"r")) )
 310                                         errx(1, "can't open file for reading -- %s", optarg);
 311                         break;
 312                 case 'y':
 313                         yflag = 1;
 314                         break;
 315                 default:
 316                         usage();
 317                 }
 318         argc -= optind;
 319         argv += optind;
 320
 321         if (command == '\0')
 322                 errx(1, "none of C, i, R, r, t or x options specified");
 323
 324 #ifdef USE_QFA
 325         if (!mflag && tapeposflag)
 326                 errx(1, "m and Q options are mutually exclusive");
 327
 328         if (tapeposflag && command != 'i' && command != 'x' && command != 't')
 329                 errx(1, "Q option is not valid for %c command", command);
 330 #endif
 331
 332         if (Afile && command != 'i' && command != 'x' && command != 't')
 333                 errx(1, "A option is not valid for %c command", command);
 334
 335         if (signal(SIGINT, onintr) == SIG_IGN)
 336                 (void) signal(SIGINT, SIG_IGN);
 337         if (signal(SIGTERM, onintr) == SIG_IGN)
 338                 (void) signal(SIGTERM, SIG_IGN);
 339         setlinebuf(stderr);
 340
 341         atexit(cleanup);
 342
 343         if (command == 'C' && inputdev[0] != '/' && strcmp(inputdev, "-")
 344 #ifdef RRESTORE
 345             && !strchr(inputdev, ':')
 346 #endif
 347           ) {
 348                 /* since we chdir into the directory we are comparing
 349                  * to, we must retain the full tape path */
 350                 char wd[MAXPATHLEN], fullpathinput[MAXPATHLEN];
 351                 if (!getcwd(wd, MAXPATHLEN))
 352                         err(1, "can't get current directory");
 353                 snprintf(fullpathinput, MAXPATHLEN, "%s/%s", wd, inputdev);
 354                 fullpathinput[MAXPATHLEN - 1] = '\0';
 355                 setinput(fullpathinput);
 356         }
 357         else
 358                 setinput(inputdev);
 359
 360         wdfd = open(".", O_RDONLY);
 361         if (wdfd < 0)
 362                 err(1, "can't get current directory");
 363
 364         if (argc == 0 && !filelist) {
 365                 argc = 1;
 366                 *--argv = ".";
 367         }
 368
 369 #ifdef USE_QFA
 370         if (tapeposflag) {
 371                 msg("reading QFA positions from %s\n", gTapeposfile);
 372                 if ((gTapeposfp = fopen(gTapeposfile, "r")) == NULL)
 373                         errx(1, "can't open file for reading -- %s",
 374                                 gTapeposfile);
 375                 /* start reading header info */
 376                 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
 377                         errx(1, "not requested format of -- %s", gTapeposfile);
 378                 gTps[strlen(gTps) - 1] = 0;     /* delete end of line */
 379                 if (strcmp(gTps, QFA_MAGIC) != 0)
 380                         errx(1, "not requested format of -- %s", gTapeposfile);
 381                 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
 382                         errx(1, "not requested format of -- %s", gTapeposfile);
 383                 gTps[strlen(gTps) - 1] = 0;
 384                 if (strcmp(gTps, QFA_VERSION) != 0)
 385                         errx(1, "not requested format of -- %s", gTapeposfile);
 386                 /* read dumpdate */
 387                 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
 388                         errx(1, "not requested format of -- %s", gTapeposfile);
 389                 gTps[strlen(gTps) - 1] = 0;
 390                 qfadumpdate = atol(gTps);
 391                 /* read empty line */
 392                 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
 393                         errx(1, "not requested format of -- %s", gTapeposfile);
 394                 gTps[strlen(gTps) - 1] = 0;
 395                 /* read table header line */
 396                 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
 397                         errx(1, "not requested format of -- %s", gTapeposfile);
 398                 gTps[strlen(gTps) - 1] = 0;
 399                 /* end reading header info */
 400                 /* tape position table starts here */
 401                 gSeekstart = ftell(gTapeposfp); /* remember for later use */
 402 #ifdef sunos
 403                 if (GetSCSIIDFromPath(inputdev, &scsiid)) {
 404                         errx(1, "can't get SCSI-ID for %s\n", inputdev);
 405                 }
 406                 if (scsiid < 0) {
 407                         errx(1, "can't get SCSI-ID for %s\n", inputdev);
 408                 }
 409                 sprintf(smtcpath, "/dev/rsmtc%ld,0", scsiid);
 410                 if ((fdsmtc = open(smtcpath, O_RDWR)) == -1) {
 411                         errx(1, "can't open smtc device: %s, %d\n", smtcpath, errno);
 412                 }
 413 #endif
 414         }
 415 #endif /* USE_QFA */
 416
 417         switch (command) {
 418         /*
 419          * Compare contents of tape.
 420          */
 421         case 'C': {
 422                 struct STAT stbuf;
 423
 424                 Vprintf(stdout, "Begin compare restore\n");
 425                 compare_ignore_not_found = 0;
 426                 compare_errors = 0;
 427                 Nflag = 1;
 428                 setup();
 429                 printf("filesys = %s\n", filesys);
 430                 if (STAT(filesys, &stbuf) < 0)
 431                         err(1, "cannot stat directory %s", filesys);
 432                 if (chdir(filesys) < 0)
 433                         err(1, "cannot cd to %s", filesys);
 434                 compare_ignore_not_found = dumptime > 0;
 435                 initsymtable((char *)0);
 436                 extractdirs(1);
 437                 treescan(".", ROOTINO, nodeupdates);
 438                 compareleaves();
 439                 comparedirmodes();
 440                 checkrestore();
 441                 if (compare_errors) {
 442                         printf("Some files were modified!\n");
 443                         exit(2);
 444                 }
 445                 break;
 446         }
 447
 448         /*
 449          * Interactive mode.
 450          */
 451         case 'i':
 452                 setup();
 453                 extractdirs(1);
 454                 initsymtable(NULL);
 455                 runcmdshell();
 456                 break;
 457         /*
 458          * Incremental restoration of a file system.
 459          */
 460         case 'r':
 461                 aflag = 1;      /* in -r or -R mode, -a is default */
 462                 setup();
 463                 if (dumptime > 0) {
 464                         /*
 465                          * This is an incremental dump tape.
 466                          */
 467                         Vprintf(stdout, "Begin incremental restore\n");
 468                         initsymtable(symtbl);
 469                         extractdirs(1);
 470                         removeoldleaves();
 471                         Vprintf(stdout, "Calculate node updates.\n");
 472                         treescan(".", ROOTINO, nodeupdates);
 473                         findunreflinks();
 474                         removeoldnodes();
 475                 } else {
 476                         /*
 477                          * This is a level zero dump tape.
 478                          */
 479                         Vprintf(stdout, "Begin level 0 restore\n");
 480                         initsymtable((char *)0);
 481                         extractdirs(1);
 482                         Vprintf(stdout, "Calculate extraction list.\n");
 483                         treescan(".", ROOTINO, nodeupdates);
 484                 }
 485                 createleaves(symtbl);
 486                 createlinks();
 487                 setdirmodes(FORCE);
 488                 checkrestore();
 489                 if (dflag) {
 490                         Vprintf(stdout, "Verify the directory structure\n");
 491                         treescan(".", ROOTINO, verifyfile);
 492                 }
 493                 dumpsymtable(symtbl, (long)1);
 494                 break;
 495         /*
 496          * Resume an incremental file system restoration.
 497          */
 498         case 'R':
 499                 aflag = 1;      /* in -r or -R mode, -a is default */
 500                 initsymtable(symtbl);
 501                 skipmaps();
 502                 skipdirs();
 503                 createleaves(symtbl);
 504                 createlinks();
 505                 setdirmodes(FORCE);
 506                 checkrestore();
 507                 dumpsymtable(symtbl, (long)1);
 508                 break;
 509
 510 /* handle file names from either text file (-X) or the command line */
 511 #define NEXTFILE(p) \
 512         p = NULL; \
 513         if (argc) { \
 514                 --argc; \
 515                 p = *argv++; \
 516         } \
 517         else if (filelist) { \
 518                 if ((p = fgets(fname, MAXPATHLEN, filelist))) { \
 519                         if ( *p && *(p + strlen(p) - 1) == '\n' ) /* possible null string */ \
 520                                 *(p + strlen(p) - 1) = '\0'; \
 521                         if ( !*p ) /* skip empty lines */ \
 522                                 continue; \
 523                         } \
 524         }
 525
 526         /*
 527          * List contents of tape.
 528          */
 529         case 't':
 530                 setup();
 531                 extractdirs(0);
 532                 initsymtable((char *)0);
 533                 printvolinfo();
 534                 for (;;) {
 535                         NEXTFILE(p);
 536                         if (!p)
 537                                 break;
 538                         canon(p, name, sizeof(name));
 539                         ino = dirlookup(name);
 540                         if (ino == 0)
 541                                 continue;
 542                         treescan(name, ino, listfile);
 543                 }
 544                 break;
 545         /*
 546          * Batch extraction of tape contents.
 547          */
 548         case 'x':
 549 #ifdef DEBUG_QFA
 550                 tistart = time(NULL);
 551 #endif
 552                 setup();
 553                 extractdirs(1);
 554                 initsymtable((char *)0);
 555                 for (;;) {
 556                         NEXTFILE(p);
 557                         if (!p)
 558                                 break;
 559                         canon(p, name, sizeof(name));
 560                         ino = dirlookup(name);
 561                         if (ino == 0)
 562                                 continue;
 563                         if (mflag)
 564                                 pathcheck(name);
 565                         treescan(name, ino, addfile);
 566                 }
 567                 createfiles();
 568                 createlinks();
 569                 setdirmodes(oflag ? FORCE : 0);
 570                 if (dflag)
 571                         checkrestore();
 572 #ifdef sunos
 573                 if (fdsmtc != -1) {
 574                         close(fdsmtc);
 575                 }
 576 #endif /* sunos */
 577 #ifdef DEBUG_QFA
 578                 tiend = time(NULL);
 579                 titaken = tiend - tistart;
 580                 msg("restore took %d:%02d:%02d\n", titaken / 3600,
 581                         (titaken % 3600) / 60, titaken % 60);
 582 #endif /* DEBUG_QFA */
 583                 break;
 584 #ifdef USE_QFA
 585         case 'P':
 586 #ifdef DEBUG_QFA
 587                 tistart = time(NULL);
 588 #endif
 589 #ifdef sunos
 590                 if (GetSCSIIDFromPath(inputdev, &scsiid)) {
 591                         errx(1, "can't get SCSI-ID for %s\n", inputdev);
 592                 }
 593                 if (scsiid < 0) {
 594                         errx(1, "can't get SCSI-ID for %s\n", inputdev);
 595                 }
 596                 sprintf(smtcpath, "/dev/rsmtc%ld,0", scsiid);
 597                 if ((fdsmtc = open(smtcpath, O_RDWR)) == -1) {
 598                         errx(1, "can't open smtc device: %s, %d\n", smtcpath, errno);
 599                 }
 600 #endif /* sunos */
 601                 setup();
 602                 msg("writing QFA positions to %s\n", gTapeposfile);
 603                 (void) umask(orig_umask);
 604                 if ((gTapeposfd = open(gTapeposfile, O_WRONLY|O_CREAT|O_TRUNC,
 605                                        S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP
 606                                        |S_IROTH|S_IWOTH)) < 0)
 607                         errx(1, "can't create tapeposfile\n");
 608                 (void) umask(FORCED_UMASK);
 609                 /* print QFA-file header */
 610                 sprintf(gTps, "%s\n%s\n%ld\n\n", QFA_MAGIC, QFA_VERSION, (unsigned long)spcl.c_date);
 611                 if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
 612                         errx(1, "can't write tapeposfile\n");
 613                 sprintf(gTps, "ino\ttapeno\ttapepos\n");
 614                 if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
 615                         errx(1, "can't write tapeposfile\n");
 616
 617                 extractdirs(1);
 618                 initsymtable((char *)0);
 619                 for (;;) {
 620                         NEXTFILE(p);
 621                         if (!p)
 622                                 break;
 623                         canon(p, name, sizeof(name));
 624                         ino = dirlookup(name);
 625                         if (ino == 0)
 626                                 continue;
 627                         if (mflag)
 628                                 pathcheck(name);
 629                         treescan(name, ino, addfile);
 630                 }
 631                 createfiles();
 632 #ifdef sunos
 633                 if (fdsmtc != -1) {
 634                         close(fdsmtc);
 635                 }
 636 #endif /* sunos */
 637 #ifdef DEBUG_QFA
 638                 tiend = time(NULL);
 639                 titaken = tiend - tistart;
 640                 msg("writing QFA positions took %d:%02d:%02d\n", titaken / 3600,
 641                         (titaken % 3600) / 60, titaken % 60);
 642 #endif /* DEBUG_QFA */
 643                 break;
 644 #endif  /* USE_QFA */
 645         }
 646         exit(0);
 647         /* NOTREACHED */
 648         return 0;       /* gcc shut up */
 649 }
 650
 651 static void
 652 usage(void)
 653 {
 654         char white[MAXPATHLEN];
 655         const char *ext2ver, *ext2date;
 656
 657         memset(white, ' ', MAXPATHLEN);
 658         white[MIN(strlen(__progname), MAXPATHLEN - 1)] = '\0';
 659
 660 #ifdef __linux__
 661         ext2fs_get_library_version(&ext2ver, &ext2date);
 662         (void)fprintf(stderr, "%s %s (using libext2fs %s of %s)\n",
 663                       __progname, _DUMP_VERSION, ext2ver, ext2date);
 664 #else
 665         (void)fprintf(stderr, "%s %s\n", __progname, _DUMP_VERSION);
 666 #endif
 667
 668 #ifdef KERBEROS
 669 #define kerbflag "k"
 670 #else
 671 #define kerbflag
 672 #endif
 673
 674 #ifdef USE_QFA
 675 #define qfaflag "[-Q file] "
 676 #else
 677 #define qfaflag
 678 #endif
 679
 680         fprintf(stderr,
 681                 "usage:"
 682                 "\t%s -C [-cd" kerbflag "lMvVy] [-b blocksize] [-D filesystem] [-f file]\n"
 683                 "\t%s    [-F script] [-L limit] [-s fileno]\n"
 684                 "\t%s -i [-acdh" kerbflag "lmMouvVy] [-A file] [-b blocksize] [-f file]\n"
 685                 "\t%s    [-F script] " qfaflag "[-s fileno]\n"
 686 #ifdef USE_QFA
 687                 "\t%s -P file [-acdh" kerbflag "lmMuvVy] [-A file] [-b blocksize]\n"
 688                 "\t%s    [-f file] [-F script] [-s fileno] [-X filelist] [file ...]\n"
 689 #endif
 690                 "\t%s -r [-cd" kerbflag "lMuvVy] [-b blocksize] [-f file] [-F script]\n"
 691                 "\t%s    [-s fileno] [-T directory]\n"
 692                 "\t%s -R [-cd" kerbflag "lMuvVy] [-b blocksize] [-f file] [-F script]\n"
 693                 "\t%s    [-s fileno] [-T directory]\n"
 694                 "\t%s -t [-cdh" kerbflag "lMuvVy] [-A file] [-b blocksize] [-f file]\n"
 695                 "\t%s    [-F script] " qfaflag "[-s fileno] [-X filelist] [file ...]\n"
 696                 "\t%s -x [-acdh" kerbflag "lmMouvVy] [-A file] [-b blocksize] [-f file]\n"
 697                 "\t%s    [-F script] " qfaflag "[-s fileno] [-X filelist] [file ...]\n",
 698                 __progname, white,
 699                 __progname, white,
 700 #ifdef USE_QFA
 701                 __progname, white,
 702 #endif
 703                 __progname, white,
 704                 __progname, white,
 705                 __progname, white,
 706                 __progname, white);
 707         exit(1);
 708 }
 709
 710 /*
 711  * obsolete --
 712  *      Change set of key letters and ordered arguments into something
 713  *      getopt(3) will like.
 714  */
 715 static void
 716 obsolete(int *argcp, char **argvp[])
 717 {
 718         int argc, flags;
 719         char *ap, **argv, *flagsp = NULL, **nargv, *p = NULL;
 720
 721         /* Setup. */
 722         argv = *argvp;
 723         argc = *argcp;
 724
 725         /* Return if no arguments or first argument has leading dash. */
 726         ap = argv[1];
 727         if (argc == 1 || *ap == '-')
 728                 return;
 729
 730         /* Allocate space for new arguments. */
 731         if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
 732             (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
 733                 err(1, "malloc args");
 734
 735         *nargv++ = *argv;
 736         argv += 2, argc -= 2;
 737
 738         for (flags = 0; *ap; ++ap) {
 739                 switch (*ap) {
 740                 case 'A':
 741                 case 'b':
 742                 case 'D':
 743                 case 'f':
 744                 case 'F':
 745                 case 'L':
 746                 case 'Q':
 747                 case 's':
 748                 case 'T':
 749                 case 'X':
 750                         if (*argv == NULL) {
 751                                 warnx("option requires an argument -- %c", *ap);
 752                                 usage();
 753                         }
 754                         if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
 755                                 err(1, "malloc arg");
 756                         nargv[0][0] = '-';
 757                         nargv[0][1] = *ap;
 758                         (void)strcpy(&nargv[0][2], *argv);
 759                         ++argv;
 760                         ++nargv;
 761                         break;
 762                 default:
 763                         if (!flags) {
 764                                 *p++ = '-';
 765                                 flags = 1;
 766                         }
 767                         *p++ = *ap;
 768                         break;
 769                 }
 770         }
 771
 772         /* Terminate flags. */
 773         if (flags) {
 774                 *p = '\0';
 775                 *nargv++ = flagsp;
 776         }
 777
 778         /* Copy remaining arguments. */
 779         while ((*nargv++ = *argv++));
 780
 781         /* Update argument count. */
 782         *argcp = nargv - *argvp - 1;
 783 }
 784
 785 /*
 786  * use_stdin --
 787  *      reserve stdin for opt (avoid conflicts)
 788  */
 789 void
 790 use_stdin(const char *opt)
 791 {
 792         if (stdin_opt)
 793                 errx(1, "can't handle standard input for both %s and %s",
 794                         stdin_opt, opt);
 795         stdin_opt = opt;
 796 }