dump/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) 1980, 1991, 1993, 1994
  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 1.92 2004/04/21 08:55:51 stelian Exp $";
  41 #endif /* not lint */
  42
  43 #include <config.h>
  44 #include <compatlfs.h>
  45 #include <ctype.h>
  46 #include <compaterr.h>
  47 #include <fcntl.h>
  48 #include <fstab.h>
  49 #include <signal.h>
  50 #include <stdio.h>
  51 #include <stdlib.h>
  52 #include <string.h>
  53 #include <unistd.h>
  54 #include <errno.h>
  55 #include <mntent.h>
  56
  57 #include <sys/param.h>
  58 #include <sys/time.h>
  59 #include <time.h>
  60 #ifdef __linux__
  61 #ifdef HAVE_EXT2FS_EXT2_FS_H
  62 #include <ext2fs/ext2_fs.h>
  63 #else
  64 #include <linux/ext2_fs.h>
  65 #endif
  66 #include <ext2fs/ext2fs.h>
  67 #include <sys/stat.h>
  68 #include <bsdcompat.h>
  69 #include <linux/fs.h>   /* for definition of BLKFLSBUF */
  70 #elif defined sunos
  71 #include <sys/vnode.h>
  72
  73 #include <ufs/inode.h>
  74 #include <ufs/fs.h>
  75 #else
  76 #include <ufs/ufs/dinode.h>
  77 #include <ufs/ffs/fs.h>
  78 #endif
  79
  80 #include <protocols/dumprestore.h>
  81
  82 #include "dump.h"
  83 #include "pathnames.h"
  84 #include "bylabel.h"
  85
  86 #ifndef SBOFF
  87 #define SBOFF (SBLOCK * DEV_BSIZE)
  88 #endif
  89
  90 int abortifconnerr = 1;         /* set to 1 if lib dumprmt.o should exit on connection errors
  91                                 otherwise just print a message using msg */
  92 /*
  93  * Dump maps used to describe what is to be dumped.
  94  */
  95 int     mapsize;        /* size of the state maps */
  96 char    *usedinomap;    /* map of allocated inodes */
  97 char    *dumpdirmap;    /* map of directories to be dumped */
  98 char    *dumpinomap;    /* map of files to be dumped */
  99 char    *metainomap;    /* which of the inodes in dumpinomap will get
 100                            only their metadata dumped */
 101
 102 const char *disk;       /* name of the disk file */
 103 char    tape[MAXPATHLEN];/* name of the tape file */
 104 char    *tapeprefix;    /* prefix of the tape file */
 105 char    *dumpdates;     /* name of the file containing dump date information*/
 106 char    lastlevel[NUM_STR_SIZE];/* dump level of previous dump */
 107 char    level[NUM_STR_SIZE];/* dump level of this dump */
 108 int     zipflag;        /* which compression method */
 109 int     Afile = -1;     /* archive file descriptor */
 110 int     AfileActive = 1;/* Afile flag */
 111 int     uflag;          /* update flag */
 112 int     mflag;          /* dump metadata only if possible */
 113 int     Mflag;          /* multi-volume flag */
 114 int     qflag;          /* quit on errors flag */
 115 int     vflag;          /* verbose flag */
 116 int     breademax = 32; /* maximum number of bread errors before we quit */
 117 char    *eot_script;    /* end of volume script fiag */
 118 int     diskfd;         /* disk file descriptor */
 119 int     tapefd;         /* tape file descriptor */
 120 int     pipeout;        /* true => output to standard output */
 121 int     fifoout;        /* true => output to fifo */
 122 dump_ino_t curino;      /* current inumber; used globally */
 123 int     newtape;        /* new tape flag */
 124 int     density;        /* density in 0.1" units */
 125 long    tapesize;       /* estimated tape size, blocks */
 126 long    tsize;          /* tape size in 0.1" units */
 127 long    asize;          /* number of 0.1" units written on current tape */
 128 int     etapes;         /* estimated number of tapes */
 129 int     nonodump;       /* if set, do not honor UF_NODUMP user flags */
 130 int     unlimited;      /* if set, write to end of medium */
 131 int     compressed;     /* if set, dump is to be compressed */
 132 long long bytes_written;/* total bytes written to tape */
 133 long    uncomprblks;    /* uncompressed blocks written to tape */
 134 int     notify;         /* notify operator flag */
 135 int     blockswritten;  /* number of blocks written on current tape */
 136 int     tapeno;         /* current tape number */
 137 time_t  tstart_writing; /* when started writing the first tape block */
 138 time_t  tend_writing;   /* after writing the last tape block */
 139 #ifdef __linux__
 140 ext2_filsys fs;
 141 #else
 142 struct  fs *sblock;     /* the file system super block */
 143 char    sblock_buf[MAXBSIZE];
 144 #endif
 145 long    xferrate;       /* averaged transfer rate of all volumes */
 146 long    dev_bsize;      /* block size of underlying disk device */
 147 int     dev_bshift;     /* log2(dev_bsize) */
 148 int     tp_bshift;      /* log2(TP_BSIZE) */
 149 dump_ino_t volinfo[TP_NINOS];/* which inode on which volume archive info */
 150
 151 #ifdef USE_QFA
 152 int     gTapeposfd;
 153 char    *gTapeposfile;
 154 char    gTps[255];
 155 int32_t gThisDumpDate;
 156 #endif /* USE_QFA */
 157
 158 struct  dumptime *dthead;       /* head of the list version */
 159 int     nddates;                /* number of records (might be zero) */
 160 int     ddates_in;              /* we have read the increment file */
 161 struct  dumpdates **ddatev;     /* the arrayfied version */
 162
 163 int     notify = 0;     /* notify operator flag */
 164 int     blockswritten = 0;      /* number of blocks written on current tape */
 165 int     tapeno = 0;     /* current tape number */
 166 int     density = 0;    /* density in bytes/0.1" " <- this is for hilit19 */
 167 int     ntrec = NTREC;  /* # blocks in each tape record */
 168 int     cartridge = 0;  /* Assume non-cartridge tape */
 169 #ifdef USE_QFA
 170 int     tapepos = 0;    /* assume no QFA tapeposition needed by user */
 171 #endif /* USE_QFA */
 172 int     dokerberos = 0; /* Use Kerberos authentication */
 173 long    dev_bsize = 1;  /* recalculated below */
 174 long    *blocksperfiles = NULL; /* output blocks per file(s) */
 175 char    *host = NULL;   /* remote host (if any) */
 176 int     sizest = 0;     /* return size estimate only */
 177 int     compressed = 0; /* use zlib to compress the output, compress level 1-9 */
 178 long long bytes_written = 0; /* total bytes written */
 179 long    uncomprblks = 0;/* uncompressed blocks written */
 180
 181 long smtc_errno;
 182
 183 #ifdef  __linux__
 184 char    *__progname;
 185 #endif
 186
 187 int     maxbsize = 1024*1024;     /* XXX MAXBSIZE from sys/param.h */
 188 static long numarg __P((const char *, long, long));
 189 static long *numlistarg __P((const char *, long, long));
 190 static void obsolete __P((int *, char **[]));
 191 static void usage __P((void));
 192 static void do_exclude_from_file __P((char *));
 193 static void do_exclude_ino_str __P((char *));
 194 static void incompat_flags __P((int, char, char));
 195
 196 static char* iexclude_bitmap = NULL;            /* the inode exclude bitmap */
 197 static unsigned int iexclude_bitmap_bytes = 0;  /* size of bitmap in bytes */
 198
 199 int
 200 main(int argc, char *argv[])
 201 {
 202         dump_ino_t ino;
 203         int dirty;
 204         struct dinode *dp;
 205         struct mntent *dt;
 206         char *map;
 207         int ch, pch = 0;
 208         int i, anydirskipped;
 209         int aflag = 0, bflag = 0, Tflag = 0, honorlevel = 1;
 210         dump_ino_t maxino;
 211         struct STAT statbuf;
 212         dev_t filedev = 0;
 213 #ifdef  __linux__
 214         errcode_t retval;
 215         char directory[MAXPATHLEN];
 216         char pathname[MAXPATHLEN];
 217 #endif
 218         time_t tnow;
 219         char *diskparam;
 220         char *Apath = NULL;
 221
 222         spcl.c_label[0] = '\0';
 223         spcl.c_date = time(NULL);
 224
 225 #ifdef __linux__
 226         __progname = argv[0];
 227         directory[0] = 0;
 228         initialize_ext2_error_table();
 229 #endif
 230
 231         tsize = 0;      /* Default later, based on 'c' option for cart tapes */
 232         unlimited = 1;
 233         eot_script = NULL;
 234         if ((tapeprefix = getenv("TAPE")) == NULL)
 235                 tapeprefix = _PATH_DEFTAPE;
 236         dumpdates = _PATH_DUMPDATES;
 237         if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0)
 238                 quit("TP_BSIZE must be a multiple of DEV_BSIZE\n");
 239         memset(&lastlevel, 0, NUM_STR_SIZE);
 240         memset(&level, 0, NUM_STR_SIZE);
 241
 242         if (argc < 2)
 243                 usage();
 244
 245         obsolete(&argc, &argv);
 246
 247 #ifdef USE_QFA
 248         gTapeposfd = -1;
 249 #endif /* USE_QFA */
 250
 251         while ((ch = getopt(argc, argv,
 252                             "0123456789A:aB:b:cd:D:e:E:f:F:h:I:"
 253 #ifdef HAVE_BZLIB
 254                             "j::"
 255 #endif
 256                             "L:"
 257 #ifdef KERBEROS
 258                             "k"
 259 #endif
 260                             "mMnq"
 261 #ifdef USE_QFA
 262                             "Q:"
 263 #endif
 264                             "s:ST:uvWw"
 265 #ifdef HAVE_LZO
 266                             "y"
 267 #endif
 268 #ifdef HAVE_ZLIB
 269                             "z::"
 270 #endif
 271                             )) != -1)
 272                 switch (ch) {
 273                 /* dump level */
 274                 case '0': case '1': case '2': case '3': case '4':
 275                 case '5': case '6': case '7': case '8': case '9':
 276                         if ((pch >= '0') && (pch <= '9') && (strlen(level) < NUM_STR_SIZE))
 277                                 level[strlen(level)] = ch;
 278                         else
 279                                 level[0] = ch;
 280                         pch = ch;
 281                         break;
 282
 283                 case 'A':               /* archive file */
 284                         Apath = optarg;
 285                         break;
 286
 287                 case 'a':               /* `auto-size', Write to EOM. */
 288                         unlimited = 1;
 289                         aflag = 1;
 290                         break;
 291
 292                 case 'B':               /* blocks per output file */
 293                         unlimited = 0;
 294                         blocksperfiles = numlistarg("number of blocks per file",
 295                             1L, 0L);
 296                         break;
 297
 298                 case 'b':               /* blocks per tape write */
 299                         ntrec = numarg("number of blocks per write",
 300                             1L, 1048576L);
 301                         if (ntrec > maxbsize/1024) {
 302                                 msg("Please choose a blocksize <= %dkB\n",
 303                                         maxbsize/1024);
 304                                 msg("The ENTIRE dump is aborted.\n");
 305                                 exit(X_STARTUP);
 306                         }
 307                         bflag = 1;
 308                         break;
 309
 310                 case 'c':               /* Tape is cart. not 9-track */
 311                         unlimited = 0;
 312                         cartridge = 1;
 313                         break;
 314
 315                 case 'd':               /* density, in bits per inch */
 316                         unlimited = 0;
 317                         density = numarg("density", 10L, 327670L) / 10;
 318                         if (density >= 625 && !bflag)
 319                                 ntrec = HIGHDENSITYTREC;
 320                         break;
 321
 322                 case 'D':               /* path of dumpdates file */
 323                         dumpdates = optarg;
 324                         break;
 325
 326                                         /* 04-Feb-00 ILC */
 327                 case 'e':               /* exclude an inode */
 328                         {
 329                         char *p = optarg, *q;
 330                         while ((q = strchr(p, ','))) {
 331                                 *q = '\0';
 332                                 do_exclude_ino_str(p);
 333                                 p = q + 1;
 334                         }
 335                         do_exclude_ino_str(p);
 336                         }
 337                         break;
 338
 339                 case 'E':               /* exclude inodes read from file */
 340                         do_exclude_from_file(optarg);
 341                         break;
 342
 343                 case 'f':               /* output file */
 344                         tapeprefix = optarg;
 345                         break;
 346
 347                 case 'F':               /* end of tape script */
 348                         eot_script = optarg;
 349                         break;
 350
 351                 case 'h':
 352                         honorlevel = numarg("honor level", 0L, 10L);
 353                         break;
 354
 355 #ifdef HAVE_BZLIB
 356                 case 'j':
 357                         compressed = 2;
 358                         zipflag = COMPRESS_BZLIB;
 359                         if (optarg)
 360                                 compressed = numarg("compress level", 1L, 9L);
 361                         break;
 362 #endif /* HAVE_BZLIB */
 363
 364                 case 'I':
 365                         breademax =
 366                           numarg ("number of errors to ignore", 0L, 0L);
 367                         break;
 368
 369 #ifdef KERBEROS
 370                 case 'k':
 371                         dokerberos = 1;
 372                         break;
 373 #endif
 374
 375                 case 'L':
 376                         /*
 377                          * Note that although there are LBLSIZE characters,
 378                          * the last must be '\0', so the limit on strlen()
 379                          * is really LBLSIZE-1.
 380                          */
 381                         strncpy(spcl.c_label, optarg, LBLSIZE);
 382                         spcl.c_label[LBLSIZE-1] = '\0';
 383                         if (strlen(optarg) > LBLSIZE-1) {
 384                                 msg(
 385                 "WARNING Label `%s' is larger than limit of %d characters.\n",
 386                                     optarg, LBLSIZE-1);
 387                                 msg("WARNING: Using truncated label `%s'.\n",
 388                                     spcl.c_label);
 389                         }
 390                         break;
 391
 392                 case 'm':               /* metadata only flag */
 393                         mflag = 1;
 394                         break;
 395
 396                 case 'M':               /* multi-volume flag */
 397                         Mflag = 1;
 398                         break;
 399
 400                 case 'n':               /* notify operators */
 401                         notify = 1;
 402                         break;
 403
 404                 case 'q':
 405                         qflag = 1;
 406                         break;
 407
 408 #ifdef USE_QFA
 409                 case 'Q':               /* create tapeposfile */
 410                         gTapeposfile = optarg;
 411                         tapepos = 1;
 412                         break;
 413 #endif /* USE_QFA */
 414
 415                 case 's':               /* tape size, feet */
 416                         unlimited = 0;
 417                         tsize = numarg("tape size", 1L, 0L) * 12 * 10;
 418                         break;
 419
 420                 case 'S':
 421                         sizest = 1;     /* return size estimate only */
 422                         break;
 423
 424                 case 'T':               /* time of last dump */
 425                         spcl.c_ddate = unctime(optarg);
 426                         if (spcl.c_ddate < 0) {
 427                                 msg("bad time \"%s\"\n", optarg);
 428                                 msg("The ENTIRE dump is aborted.\n");
 429                                 exit(X_STARTUP);
 430                         }
 431                         Tflag = 1;
 432                         lastlevel[0] = '?'; lastlevel[1] = '\0';
 433                         break;
 434
 435                 case 'u':               /* update dumpdates */
 436                         uflag = 1;
 437                         break;
 438
 439                 case 'v':               /* verbose */
 440                         vflag = 1;
 441                         break;
 442
 443                 case 'W':               /* what to do */
 444                 case 'w':
 445                         lastdump(ch);
 446                         exit(X_FINOK);  /* do nothing else */
 447 #ifdef HAVE_LZO
 448                 case 'y':
 449                         compressed = 2;
 450                         zipflag = COMPRESS_LZO;
 451                         break;
 452 #endif /* HAVE_LZO */
 453
 454 #ifdef HAVE_ZLIB
 455                 case 'z':
 456                         compressed = 2;
 457                         zipflag = COMPRESS_ZLIB;
 458                         if (optarg)
 459                                 compressed = numarg("compress level", 1L, 9L);
 460                         break;
 461 #endif /* HAVE_ZLIB */
 462
 463                 default:
 464                         usage();
 465                 }
 466         argc -= optind;
 467         argv += optind;
 468
 469         if (argc < 1) {
 470                 msg("Must specify disk or filesystem\n");
 471                 msg("The ENTIRE dump is aborted.\n");
 472                 exit(X_STARTUP);
 473         }
 474         diskparam = *argv++;
 475         if (strlen(diskparam) >= MAXPATHLEN) {
 476                 msg("Disk or filesystem name too long: %s\n", diskparam);
 477                 msg("The ENTIRE dump is aborted.\n");
 478                 exit(X_STARTUP);
 479         }
 480         argc--;
 481         incompat_flags(Tflag && uflag, 'T', 'u');
 482         incompat_flags(aflag && blocksperfiles, 'a', 'B');
 483         incompat_flags(aflag && cartridge, 'a', 'c');
 484         incompat_flags(aflag && density, 'a', 'd');
 485         incompat_flags(aflag && tsize, 'a', 's');
 486
 487         if (strcmp(tapeprefix, "-") == 0) {
 488                 pipeout++;
 489                 tapeprefix = "standard output";
 490         }
 491
 492         if (blocksperfiles && !compressed)
 493                 for (i = 1; i <= *blocksperfiles; i++)
 494                         blocksperfiles[i] = blocksperfiles[i] / ntrec * ntrec; /* round down */
 495         else if (!unlimited) {
 496                 /*
 497                  * Determine how to default tape size and density
 498                  *
 499                  *              density                         tape size
 500                  * 9-track      1600 bpi (160 bytes/.1")        2300 ft.
 501                  * 9-track      6250 bpi (625 bytes/.1")        2300 ft.
 502                  * cartridge    8000 bpi (100 bytes/.1")        1700 ft.
 503                  *                                              (450*4 - slop)
 504                  * hilit19 hits again: "
 505                  */
 506                 if (density == 0)
 507                         density = cartridge ? 100 : 160;
 508                 if (tsize == 0)
 509                         tsize = cartridge ? 1700L*120L : 2300L*120L;
 510         }
 511
 512         {
 513                 int i;
 514                 char *n;
 515
 516                 if ((n = strchr(tapeprefix, ':'))) {
 517                         for (i = 0; i < (n - tapeprefix); i++) {
 518                                 if (tapeprefix[i] == '/')
 519                                         break;
 520                         }
 521                         if (tapeprefix[i] != '/') {
 522                                 host = tapeprefix;
 523                                 tapeprefix = strchr(host, ':');
 524                                 *tapeprefix++ = '\0';
 525 #ifdef RDUMP
 526                                 if (index(tapeprefix, '\n')) {
 527                                         msg("invalid characters in tape\n");
 528                                         msg("The ENTIRE dump is aborted.\n");
 529                                         exit(X_STARTUP);
 530                                 }
 531                                 if (rmthost(host) == 0)
 532                                         exit(X_STARTUP);
 533 #else
 534                                 msg("remote dump not enabled\n");
 535                                 msg("The ENTIRE dump is aborted.\n");
 536                                 exit(X_STARTUP);
 537 #endif
 538                         }
 539                 }
 540         }
 541
 542         (void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
 543         if (Apath && (Afile = open(Apath, O_WRONLY|O_CREAT|O_TRUNC,
 544                                    S_IRUSR | S_IWUSR | S_IRGRP |
 545                                    S_IWGRP | S_IROTH | S_IWOTH)) < 0) {
 546                 msg("Cannot open %s for writing: %s\n",
 547                     optarg, strerror(errno));
 548                 msg("The ENTIRE dump is aborted.\n");
 549                 exit(X_STARTUP);
 550         }
 551
 552         if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
 553                 signal(SIGHUP, sig);
 554         if (signal(SIGTRAP, SIG_IGN) != SIG_IGN)
 555                 signal(SIGTRAP, sig);
 556         if (signal(SIGFPE, SIG_IGN) != SIG_IGN)
 557                 signal(SIGFPE, sig);
 558         if (signal(SIGBUS, SIG_IGN) != SIG_IGN)
 559                 signal(SIGBUS, sig);
 560         if (signal(SIGSEGV, SIG_IGN) != SIG_IGN)
 561                 signal(SIGSEGV, sig);
 562         if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
 563                 signal(SIGTERM, sig);
 564         if (signal(SIGINT, interrupt) == SIG_IGN)
 565                 signal(SIGINT, SIG_IGN);
 566 #ifdef SIGXCPU
 567         signal(SIGXCPU, SIG_IGN);
 568 #endif /* SIGXCPU */
 569 #ifdef SIGXFSZ
 570         signal(SIGXFSZ, SIG_IGN);
 571 #endif /* SIGXFSZ */
 572
 573         set_operators();        /* /etc/group snarfed */
 574         getfstab();             /* /etc/fstab snarfed */
 575
 576         /*
 577          *      disk may end in / and this can confuse
 578          *      fstabsearch.
 579          */
 580         i = strlen(diskparam) - 1;
 581         if (i > 1 && diskparam[i] == '/')
 582                 if (!(i == 6 && !strcmp(diskparam, "LABEL=/")))
 583                         diskparam[i] = '\0';
 584
 585         disk = get_device_name(diskparam);
 586         if (!disk) {            /* null means the disk is some form
 587                                    of LABEL= or UID= but it was not
 588                                    found */
 589                 msg("Cannot find a disk having %s\n", diskparam);
 590                 msg("The ENTIRE dump is aborted.\n");
 591                 exit(X_STARTUP);
 592         }
 593         /*
 594          *      disk can be either the full special file name,
 595          *      the suffix of the special file name,
 596          *      the special name missing the leading '/',
 597          *      the file system name with or without the leading '/'.
 598          */
 599         if ((dt = fstabsearch(disk)) != NULL) {
 600                 /* if found then only one parameter (i.e. partition)
 601                  * is allowed */
 602                 if (argc >= 1) {
 603                         (void)fprintf(stderr, "Unknown arguments to dump:");
 604                         while (argc--)
 605                                 (void)fprintf(stderr, " %s", *argv++);
 606                         (void)fprintf(stderr, "\n");
 607                         msg("The ENTIRE dump is aborted.\n");
 608                         exit(X_STARTUP);
 609                 }
 610                 disk = rawname(dt->mnt_fsname);
 611                 (void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
 612                 (void)strncpy(spcl.c_filesys, dt->mnt_dir, NAMELEN);
 613         } else {
 614 #ifdef  __linux__
 615 #ifdef  HAVE_REALPATH
 616                 if (realpath(disk, pathname) == NULL)
 617 #endif
 618                         strcpy(pathname, disk);
 619                 /*
 620                  * The argument could be now a mountpoint of
 621                  * a filesystem specified in fstab. Search for it.
 622                  */
 623                 if ((dt = fstabsearch(pathname)) != NULL) {
 624                         disk = rawname(dt->mnt_fsname);
 625                         (void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
 626                         (void)strncpy(spcl.c_filesys, dt->mnt_dir, NAMELEN);
 627                 } else {
 628                         /*
 629                          * The argument was not found in the fstab
 630                          * assume that this is a subtree and search for it
 631                          */
 632                         dt = fstabsearchdir(pathname, directory);
 633                         if (dt != NULL) {
 634                                 char name[MAXPATHLEN];
 635                                 (void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
 636                                 (void)snprintf(name, sizeof(name), "%s (dir %s)",
 637                                               dt->mnt_dir, directory);
 638                                 (void)strncpy(spcl.c_filesys, name, NAMELEN);
 639                                 disk = rawname(dt->mnt_fsname);
 640                         } else {
 641                                 (void)strncpy(spcl.c_dev, disk, NAMELEN);
 642                                 (void)strncpy(spcl.c_filesys, "an unlisted file system",
 643                                     NAMELEN);
 644                         }
 645                 }
 646 #else
 647                 (void)strncpy(spcl.c_dev, disk, NAMELEN);
 648                 (void)strncpy(spcl.c_filesys, "an unlisted file system",
 649                     NAMELEN);
 650 #endif
 651         }
 652
 653         if (directory[0] != 0) {
 654                 if (atoi(level) != 0) {
 655                         msg("Only level 0 dumps are allowed on a subdirectory\n");
 656                         msg("The ENTIRE dump is aborted.\n");
 657                         exit(X_STARTUP);
 658                 }
 659                 if (uflag) {
 660                         msg("You can't update the dumpdates file when dumping a subdirectory\n");
 661                         msg("The ENTIRE dump is aborted.\n");
 662                         exit(X_STARTUP);
 663                 }
 664         }
 665         spcl.c_dev[NAMELEN-1] = '\0';
 666         spcl.c_filesys[NAMELEN-1] = '\0';
 667         (void)gethostname(spcl.c_host, NAMELEN);
 668         spcl.c_host[NAMELEN-1] = '\0';
 669         spcl.c_level = atoi(level);
 670         spcl.c_type = TS_TAPE;
 671         if (!Tflag)
 672                 getdumptime(uflag);             /* dumpdates snarfed */
 673
 674         if (spcl.c_ddate == 0 && spcl.c_level) {
 675                 msg("WARNING: There is no inferior level dump on this filesystem\n");
 676                 msg("WARNING: Assuming a level 0 dump by default\n");
 677                 level[0] = '0'; level[1] = '\0';
 678                 spcl.c_level = 0;
 679         }
 680
 681         if (Mflag)
 682                 snprintf(tape, MAXPATHLEN, "%s%03d", tapeprefix, tapeno + 1);
 683         else
 684                 strncpy(tape, tapeprefix, MAXPATHLEN);
 685         tape[MAXPATHLEN - 1] = '\0';
 686
 687         if (!pipeout) {
 688                 if (STAT(tape, &statbuf) != -1)
 689                         fifoout= statbuf.st_mode & S_IFIFO;
 690         }
 691
 692         if (!sizest) {
 693
 694                 msg("Date of this level %s dump: %s", level,
 695                     ctime4(&spcl.c_date));
 696 #ifdef USE_QFA
 697                 gThisDumpDate = spcl.c_date;
 698 #endif
 699                 if (spcl.c_ddate)
 700                         msg("Date of last level %s dump: %s", lastlevel,
 701                             ctime4(&spcl.c_ddate));
 702                 msg("Dumping %s (%s) ", disk, spcl.c_filesys);
 703                 if (host)
 704                         msgtail("to %s on host %s\n", tape, host);
 705                 else
 706                         msgtail("to %s\n", tape);
 707         } /* end of size estimate */
 708
 709 #ifdef  __linux__
 710         if ((diskfd = OPEN(disk, O_RDONLY)) < 0) {
 711                 msg("Cannot open %s\n", disk);
 712                 msg("The ENTIRE dump is aborted.\n");
 713                 exit(X_STARTUP);
 714         }
 715 #ifdef BLKFLSBUF
 716         (void)ioctl(diskfd, BLKFLSBUF, 0);
 717 #endif
 718         retval = dump_fs_open(disk, &fs);
 719         if (retval) {
 720                 com_err(disk, retval, "while opening filesystem");
 721                 if (retval == EXT2_ET_REV_TOO_HIGH)
 722                         msg("Get a newer version of dump!\n");
 723                 msg("The ENTIRE dump is aborted.\n");
 724                 exit(X_STARTUP);
 725         }
 726         if (fs->super->s_rev_level > DUMP_CURRENT_REV) {
 727                 com_err(disk, retval, "while opening filesystem");
 728                 msg("Get a newer version of dump!\n");
 729                 msg("The ENTIRE dump is aborted.\n");
 730                 exit(X_STARTUP);
 731         }
 732         /* if no user label specified, use ext2 filesystem label if available */
 733         if (spcl.c_label[0] == '\0') {
 734                 const char *lbl;
 735                 if ( (lbl = get_device_label(disk)) != NULL) {
 736                         strncpy(spcl.c_label, lbl, LBLSIZE);
 737                         spcl.c_label[LBLSIZE-1] = '\0';
 738                 }
 739                 else
 740                         strcpy(spcl.c_label, "none");   /* safe strcpy. */
 741         }
 742         sync();
 743         dev_bsize = DEV_BSIZE;
 744         dev_bshift = ffs(dev_bsize) - 1;
 745         if (dev_bsize != (1 << dev_bshift))
 746                 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
 747         tp_bshift = ffs(TP_BSIZE) - 1;
 748         if (TP_BSIZE != (1 << tp_bshift))
 749                 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
 750         maxino = fs->super->s_inodes_count + 1;
 751         spcl.c_flags |= DR_NEWINODEFMT;
 752 #else   /* __linux __*/
 753         if ((diskfd = open(disk, O_RDONLY)) < 0) {
 754                 msg("Cannot open %s\n", disk);
 755                 msg("The ENTIRE dump is aborted.\n");
 756                 exit(X_STARTUP);
 757         }
 758         sync();
 759         sblock = (struct fs *)sblock_buf;
 760         bread(SBOFF, (char *) sblock, SBSIZE);
 761         if (sblock->fs_magic != FS_MAGIC)
 762                 quit("bad sblock magic number\n");
 763         dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
 764         dev_bshift = ffs(dev_bsize) - 1;
 765         if (dev_bsize != (1 << dev_bshift))
 766                 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
 767         tp_bshift = ffs(TP_BSIZE) - 1;
 768         if (TP_BSIZE != (1 << tp_bshift))
 769                 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
 770 #ifdef FS_44INODEFMT
 771         if (sblock->fs_inodefmt >= FS_44INODEFMT)
 772                 spcl.c_flags |= DR_NEWINODEFMT;
 773 #endif
 774         maxino = sblock->fs_ipg * sblock->fs_ncg;
 775 #endif  /* __linux__ */
 776         mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE);
 777         usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
 778         dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
 779         dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
 780         metainomap = (char *)calloc((unsigned) mapsize, sizeof(char));
 781         if (usedinomap == NULL || dumpdirmap == NULL ||
 782             dumpinomap == NULL || metainomap == NULL)
 783                 quit("out of memory allocating inode maps\n");
 784         tapesize = 2 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
 785
 786         nonodump = spcl.c_level < honorlevel;
 787
 788         if (!sizest) {
 789                 msg("Label: %s\n", spcl.c_label);
 790
 791                 msg("Writing %d Kilobyte records\n", ntrec);
 792
 793                 if (compressed) {
 794                         if (zipflag == COMPRESS_LZO)
 795                                 msg("Compressing output (lzo)\n");
 796                         else
 797                                 msg("Compressing output at compression level %d (%s)\n",
 798                                         compressed, zipflag == COMPRESS_ZLIB ? "zlib" : "bzlib");
 799                 }
 800         }
 801
 802 #if defined(SIGINFO)
 803         (void)signal(SIGINFO, statussig);
 804 #endif
 805
 806         if (!sizest)
 807                 msg("mapping (Pass I) [regular files]\n");
 808 #ifdef  __linux__
 809         if (directory[0] == 0)
 810                 anydirskipped = mapfiles(maxino, &tapesize);
 811         else {
 812                 if (LSTAT(pathname, &statbuf) == -1) {
 813                         msg("File cannot be accessed (%s).\n", pathname);
 814                         msg("The ENTIRE dump is aborted.\n");
 815                         exit(X_STARTUP);
 816                 }
 817                 filedev = statbuf.st_dev;
 818                 if (!(statbuf.st_mode & S_IFDIR))       /* is a file */
 819                         anydirskipped = maponefile(maxino, &tapesize,
 820                                                    directory);
 821                 else
 822                         anydirskipped = mapfilesfromdir(maxino, &tapesize,
 823                                                         directory);
 824         }
 825         while (argc--) {
 826                 int anydirskipped2;
 827                 char *p = *argv;
 828                 /* check if file is available */
 829                 if (LSTAT(p, &statbuf) == -1) {
 830                         msg("File cannot be accessed (%s).\n", p);
 831                         msg("The ENTIRE dump is aborted.\n");
 832                         exit(X_STARTUP);
 833                 }
 834                 /* check if file is on same unix partiton as the first
 835                  * argument */
 836                 if (statbuf.st_dev != filedev) {
 837                         msg("Files are not on same file system (%s).\n", p);
 838                         msg("The ENTIRE dump is aborted.\n");
 839                         exit(X_STARTUP);
 840                 }
 841                 /* check if file is a directory */
 842                 if (!(statbuf.st_mode & S_IFDIR))
 843                         anydirskipped2 = maponefile(maxino, &tapesize,
 844                                                     p+strlen(dt->mnt_dir));
 845                 else
 846                         /* read directory inodes.
 847                          * NOTE: nested directories are not recognized
 848                          * so inodes may be umped twice!
 849                          */
 850                         anydirskipped2 = mapfilesfromdir(maxino, &tapesize,
 851                                                          p+strlen(dt->mnt_dir));
 852                 if (!anydirskipped)
 853                         anydirskipped = anydirskipped2;
 854                 argv++;
 855         }
 856 #else
 857         anydirskipped = mapfiles(maxino, &tapesize);
 858 #endif
 859
 860         if (!sizest)
 861                 msg("mapping (Pass II) [directories]\n");
 862         while (anydirskipped) {
 863                 anydirskipped = mapdirs(maxino, &tapesize);
 864         }
 865
 866         if (sizest) {
 867                 printf("%.0f\n", ((double)tapesize + 1 + ntrec) * TP_BSIZE);
 868                 exit(X_FINOK);
 869         } /* stop here for size estimate */
 870
 871         if (pipeout || unlimited) {
 872                 tapesize += 1 + ntrec;  /* 1 map header + trailer blocks */
 873                 msg("estimated %ld blocks.\n", tapesize);
 874         } else {
 875                 double fetapes;
 876
 877                 if (blocksperfiles) {
 878                         long tapesize_left;
 879
 880                         tapesize_left = tapesize;
 881                         fetapes = 0;
 882                         for (i = 1; i < *blocksperfiles && tapesize_left; i++) {
 883                                 fetapes++;
 884                                 if (tapesize_left > blocksperfiles[i])
 885                                         tapesize_left -= blocksperfiles[i];
 886                                 else
 887                                         tapesize_left = 0;
 888                         }
 889                         if (tapesize_left)
 890                                 fetapes += (double)tapesize_left / blocksperfiles[*blocksperfiles];
 891                 } else if (cartridge) {
 892                         /* Estimate number of tapes, assuming streaming stops at
 893                            the end of each block written, and not in mid-block.
 894                            Assume no erroneous blocks; this can be compensated
 895                            for with an artificially low tape size. */
 896                         fetapes =
 897                         (         (double) tapesize     /* blocks */
 898                                 * TP_BSIZE      /* bytes/block */
 899                                 * (1.0/density) /* 0.1" / byte " */
 900                           +
 901                                   (double) tapesize     /* blocks */
 902                                 * (1.0/ntrec)   /* streaming-stops per block */
 903                                 * 15.48         /* 0.1" / streaming-stop " */
 904                         ) * (1.0 / tsize );     /* tape / 0.1" " */
 905                 } else {
 906                         /* Estimate number of tapes, for old fashioned 9-track
 907                            tape */
 908                         int tenthsperirg = (density == 625) ? 3 : 7;
 909                         fetapes =
 910                         (         (double) tapesize     /* blocks */
 911                                 * TP_BSIZE      /* bytes / block */
 912                                 * (1.0/density) /* 0.1" / byte " */
 913                           +
 914                                   (double) tapesize     /* blocks */
 915                                 * (1.0/ntrec)   /* IRG's / block */
 916                                 * tenthsperirg  /* 0.1" / IRG " */
 917                         ) * (1.0 / tsize );     /* tape / 0.1" " */
 918                 }
 919                 etapes = fetapes;               /* truncating assignment */
 920                 etapes++;
 921                 /* count the dumped inodes map on each additional tape */
 922                 tapesize += (etapes - 1) *
 923                         (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
 924                 tapesize += etapes + ntrec;     /* headers + trailer blks */
 925                 msg("estimated %ld blocks on %3.2f tape(s).\n",
 926                     tapesize, fetapes);
 927         }
 928
 929 #ifdef USE_QFA
 930         if (tapepos) {
 931                 msg("writing QFA positions to %s\n", gTapeposfile);
 932                 if ((gTapeposfd = open(gTapeposfile,
 933                                        O_WRONLY|O_CREAT|O_TRUNC,
 934                                        S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP
 935                                        | S_IROTH | S_IWOTH)) < 0)
 936                         quit("can't open tapeposfile\n");
 937                 /* print QFA-file header */
 938                 snprintf(gTps, sizeof(gTps), "%s\n%s\n%ld\n\n", QFA_MAGIC, QFA_VERSION, (unsigned long)spcl.c_date);
 939                 gTps[sizeof(gTps) - 1] = '\0';
 940                 if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
 941                         quit("can't write tapeposfile\n");
 942                 sprintf(gTps, "ino\ttapeno\ttapepos\n");
 943                 if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
 944                         quit("can't write tapeposfile\n");
 945         }
 946 #endif /* USE_QFA */
 947
 948         /*
 949          * Allocate tape buffer.
 950          */
 951         if (!alloctape())
 952                 quit(
 953         "can't allocate tape buffers - try a smaller blocking factor.\n");
 954
 955         startnewtape(1);
 956         tstart_writing = time(NULL);
 957         dumpmap(usedinomap, TS_CLRI, maxino - 1);
 958
 959         msg("dumping (Pass III) [directories]\n");
 960         dirty = 0;              /* XXX just to get gcc to shut up */
 961         for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
 962                 if (((ino - 1) % NBBY) == 0)    /* map is offset by 1 */
 963                         dirty = *map++;
 964                 else
 965                         dirty >>= 1;
 966                 if ((dirty & 1) == 0)
 967                         continue;
 968                 /*
 969                  * Skip directory inodes deleted and maybe reallocated
 970                  */
 971                 dp = getino(ino);
 972                 if ((dp->di_mode & IFMT) != IFDIR)
 973                         continue;
 974 #ifdef  __linux__
 975                 /*
 976                  * Skip directory inodes deleted and not yes reallocated...
 977                  */
 978                 if (dp->di_nlink == 0 || dp->di_dtime != 0)
 979                         continue;
 980                 if (vflag)
 981                         msg("dumping directory inode %lu\n", ino);
 982                 (void)dumpdirino(dp, ino);
 983 #else
 984                 (void)dumpino(dp, ino);
 985 #endif
 986         }
 987
 988         msg("dumping (Pass IV) [regular files]\n");
 989         for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
 990                 if (((ino - 1) % NBBY) == 0)    /* map is offset by 1 */
 991                         dirty = *map++;
 992                 else
 993                         dirty >>= 1;
 994                 if ((dirty & 1) == 0)
 995                         continue;
 996                 /*
 997                  * Skip inodes deleted and reallocated as directories.
 998                  */
 999                 dp = getino(ino);
1000                 if ((dp->di_mode & IFMT) == IFDIR)
1001                         continue;
1002 #ifdef __linux__
1003                 /*
1004                  * No need to check here for deleted and not yet reallocated
1005                  * inodes since this is done in dumpino().
1006                  */
1007 #endif
1008                 if (vflag) {
1009                         if (mflag && TSTINO(ino, metainomap))
1010                                 msg("dumping regular inode %lu (meta only)\n", ino);
1011                         else
1012                                 msg("dumping regular inode %lu\n", ino);
1013                 }
1014                 (void)dumpino(dp, ino, mflag && TSTINO(ino, metainomap));
1015         }
1016
1017         tend_writing = time(NULL);
1018         spcl.c_type = TS_END;
1019
1020         if (Afile >= 0) {
1021                 volinfo[1] = ROOTINO;
1022                 memcpy(spcl.c_inos, volinfo, TP_NINOS * sizeof(dump_ino_t));
1023                 spcl.c_flags |= DR_INODEINFO;
1024         }
1025
1026         /*
1027          * Finish off the current tape record with trailer blocks, to ensure
1028          * at least the data in the last partial record makes it to tape.
1029          * Also make sure we write at least 1 trailer block.
1030          */
1031         for (i = ntrec - (spcl.c_tapea % ntrec); i; --i)
1032                 writeheader(maxino - 1);
1033
1034         tnow = trewind();
1035
1036         if (pipeout || fifoout)
1037                 msg("%ld blocks (%.2fMB)\n", spcl.c_tapea,
1038                         ((double)spcl.c_tapea * TP_BSIZE / 1048576));
1039         else
1040                 msg("%ld blocks (%.2fMB) on %d volume(s)\n",
1041                     spcl.c_tapea,
1042                     ((double)spcl.c_tapea * TP_BSIZE / 1048576),
1043                     spcl.c_volume);
1044
1045         /* report dump performance, avoid division by zero */
1046         if (tend_writing - tstart_writing == 0)
1047                 msg("finished in less than a second\n");
1048         else
1049                 msg("finished in %d seconds, throughput %d kBytes/sec\n",
1050                     tend_writing - tstart_writing,
1051                     spcl.c_tapea / (tend_writing - tstart_writing));
1052
1053         putdumptime();
1054         msg("Date of this level %s dump: %s", level,
1055                 spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date));
1056         msg("Date this dump completed:  %s", ctime(&tnow));
1057
1058         msg("Average transfer rate: %ld kB/s\n", xferrate / tapeno);
1059         if (compressed) {
1060                 long tapekb = bytes_written / 1024;
1061                 double rate = .0005 + (double) spcl.c_tapea / tapekb;
1062                 msg("Wrote %ldkB uncompressed, %ldkB compressed, %1.3f:1\n",
1063                         spcl.c_tapea, tapekb, rate);
1064         }
1065
1066         if (Afile >= 0)
1067                 msg("Archiving dump to %s\n", Apath);
1068
1069         broadcast("DUMP IS DONE!\7\7\n");
1070         msg("DUMP IS DONE\n");
1071         Exit(X_FINOK);
1072         /* NOTREACHED */
1073         return 0;       /* gcc - shut up */
1074 }
1075
1076 static void
1077 usage(void)
1078 {
1079         char white[MAXPATHLEN];
1080         const char *ext2ver, *ext2date;
1081
1082         memset(white, ' ', MAXPATHLEN);
1083         white[MIN(strlen(__progname), MAXPATHLEN - 1)] = '\0';
1084
1085 #ifdef __linux__
1086         ext2fs_get_library_version(&ext2ver, &ext2date);
1087         fprintf(stderr, "%s %s (using libext2fs %s of %s)\n",
1088                 __progname, _DUMP_VERSION, ext2ver, ext2date);
1089 #else
1090         fprintf(stderr, "%s %s\n", __progname, _DUMP_VERSION);
1091 #endif
1092         fprintf(stderr,
1093                 "usage:\t%s [-level#] [-ac"
1094 #ifdef KERBEROS
1095                 "k"
1096 #endif
1097                 "mMnqSuv"
1098                 "] [-A file] [-B records] [-b blocksize]\n"
1099                 "\t%s [-d density] [-D file] [-e inode#,inode#,...] [-E file]\n"
1100                 "\t%s [-f file] [-h level] [-I nr errors] "
1101 #ifdef HAVE_BZLIB
1102                 "[-j zlevel] "
1103 #endif
1104 #ifdef USE_QFA
1105                 "[-Q file]\n"
1106 #endif
1107                 "\t%s [-s feet] "
1108                 "[-T date] "
1109 #ifdef HAVE_LZO
1110                 "[-y] "
1111 #endif
1112 #ifdef HAVE_ZLIB
1113                 "[-z zlevel] "
1114 #endif
1115                 "filesystem\n"
1116                 "\t%s [-W | -w]\n",
1117                 __progname, white, white, white, __progname);
1118         exit(X_STARTUP);
1119 }
1120
1121 /*
1122  * Pick up a numeric argument.  It must be nonnegative and in the given
1123  * range (except that a vmax of 0 means unlimited).
1124  */
1125 static long
1126 numarg(const char *meaning, long vmin, long vmax)
1127 {
1128         char *p;
1129         long val;
1130
1131         val = strtol(optarg, &p, 10);
1132         if (*p)
1133                 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
1134         if (val < vmin || (vmax && val > vmax))
1135                 errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
1136         return (val);
1137 }
1138
1139 /*
1140  * The same as numarg, just that it expects a comma separated list of numbers
1141  * and returns an array of longs with the first element containing the number
1142  * values in that array.
1143  */
1144 static long *
1145 numlistarg(const char *meaning, long vmin, long vmax)
1146 {
1147         char *p;
1148         long *vals,*curval;
1149         long valnum;
1150
1151         p = optarg;
1152         vals = NULL;
1153         valnum = 0;
1154         do {
1155                 valnum++;
1156                 if ( !(vals = realloc(vals, (valnum + 1) * sizeof(*vals))) )
1157                         errx(X_STARTUP, "allocating memory failed");
1158                 curval = vals + valnum;
1159                 *curval = strtol(p, &p, 10);
1160                 if (*p && *p!=',')
1161                         errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
1162                 if (*curval < vmin || (vmax && *curval > vmax))
1163                         errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
1164                 *vals = valnum;
1165                 if (*p) p++;
1166         } while(*p);
1167         return (vals);
1168 }
1169
1170 void
1171 sig(int signo)
1172 {
1173         switch(signo) {
1174         case SIGALRM:
1175         case SIGBUS:
1176         case SIGFPE:
1177         case SIGHUP:
1178         case SIGTERM:
1179         case SIGTRAP:
1180                 if (pipeout || fifoout)
1181                         quit("Signal on pipe: cannot recover\n");
1182                 msg("Rewriting attempted as response to unknown signal: %d.\n", signo);
1183                 (void)fflush(stderr);
1184                 (void)fflush(stdout);
1185                 close_rewind();
1186                 exit(X_REWRITE);
1187                 /* NOTREACHED */
1188         case SIGSEGV:
1189                 msg("SIGSEGV: ABORTING!\n");
1190                 (void)signal(SIGSEGV, SIG_DFL);
1191                 (void)kill(0, SIGSEGV);
1192                 /* NOTREACHED */
1193         }
1194 }
1195
1196 const char *
1197 rawname(const char *cp)
1198 {
1199 #ifdef  __linux__
1200         return cp;
1201 #else   /* __linux__ */
1202         static char rawbuf[MAXPATHLEN];
1203         char *dp = strrchr(cp, '/');
1204
1205         if (dp == NULL)
1206                 return (NULL);
1207         (void)strncpy(rawbuf, cp, min(dp-cp, MAXPATHLEN - 1));
1208         rawbuf[min(dp-cp, MAXPATHLEN-1)] = '\0';
1209         (void)strncat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf));
1210         (void)strncat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf));
1211         return (rawbuf);
1212 #endif  /* __linux__ */
1213 }
1214
1215 /*
1216  * obsolete --
1217  *      Change set of key letters and ordered arguments into something
1218  *      getopt(3) will like.
1219  */
1220 static void
1221 obsolete(int *argcp, char **argvp[])
1222 {
1223         int argc, flags;
1224         char *ap, **argv, *flagsp=NULL, **nargv, *p=NULL;
1225
1226         /* Setup. */
1227         argv = *argvp;
1228         argc = *argcp;
1229
1230         /* Return if no arguments or first argument has leading dash. */
1231         ap = argv[1];
1232         if (argc == 1 || *ap == '-')
1233                 return;
1234
1235         /* Allocate space for new arguments. */
1236         if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
1237             (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
1238                 err(X_STARTUP, "malloc new args");
1239
1240         *nargv++ = *argv;
1241         argv += 2;
1242
1243         for (flags = 0; *ap; ++ap) {
1244                 switch (*ap) {
1245                 case 'A':
1246                 case 'B':
1247                 case 'b':
1248                 case 'd':
1249                 case 'D':
1250                 case 'e':
1251                 case 'E':
1252                 case 'f':
1253                 case 'F':
1254                 case 'h':
1255                 case 'L':
1256                 case 'Q':
1257                 case 's':
1258                 case 'T':
1259                         if (*argv == NULL) {
1260                                 warnx("option requires an argument -- %c", *ap);
1261                                 usage();
1262                         }
1263                         if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
1264                                 err(X_STARTUP, "malloc arg");
1265                         nargv[0][0] = '-';
1266                         nargv[0][1] = *ap;
1267                         (void)strcpy(&nargv[0][2], *argv);
1268                         ++argv;
1269                         ++nargv;
1270                         break;
1271                 default:
1272                         if (!flags) {
1273                                 *p++ = '-';
1274                                 flags = 1;
1275                         }
1276                         *p++ = *ap;
1277                         break;
1278                 }
1279         }
1280
1281         /* Terminate flags. */
1282         if (flags) {
1283                 *p = '\0';
1284                 *nargv++ = flagsp;
1285         }
1286
1287         /* Copy remaining arguments. */
1288         while ((*nargv++ = *argv++));
1289
1290         /* Update argument count. */
1291         *argcp = nargv - *argvp - 1;
1292 }
1293
1294 /*
1295  * This tests whether an inode is in the exclude bitmap
1296  */
1297 int
1298 exclude_ino(dump_ino_t ino)
1299 {
1300         /* if the inode exclude bitmap exists and covers given inode */
1301         if (iexclude_bitmap && iexclude_bitmap_bytes > ino / 8) {
1302                 /* then check this inode against it */
1303                 int idx = iexclude_bitmap[ino / 8];
1304                 if (idx & (1 << (ino % 8)))
1305                         return 1;
1306         }
1307         return 0;
1308 }
1309
1310 /*
1311  * This adds an inode to the exclusion bitmap if it isn't already there
1312  */
1313 void
1314 do_exclude_ino(dump_ino_t ino, const char *reason)
1315 {
1316         if (exclude_ino(ino))
1317                 return;
1318
1319         if (vflag) {
1320                 if (reason)
1321                         msg("Excluding inode %u (%s) from dump\n", ino, reason);
1322                 else
1323                         msg("Excluding inode %u from dump\n", ino);
1324         }
1325
1326         /* check for enough mem; initialize */
1327         if ((ino/8 + 1) > iexclude_bitmap_bytes) {
1328                 if (iexclude_bitmap_bytes == 0) {
1329                         unsigned int j;
1330                         iexclude_bitmap_bytes = 2 * (ino/8 + 1);
1331                         iexclude_bitmap = (char*) malloc(iexclude_bitmap_bytes);
1332                         if (iexclude_bitmap == NULL) {
1333                                 msg("allocating memory failed\n");
1334                                 exit(X_STARTUP);
1335                         }
1336                         for (j = 0; j < iexclude_bitmap_bytes; j++)
1337                                 iexclude_bitmap[j] = 0;
1338                 }
1339                 else {
1340                         unsigned int oldsize = iexclude_bitmap_bytes;
1341                         iexclude_bitmap_bytes *=
1342                                 (ino / 8 + 1) / iexclude_bitmap_bytes + 1;
1343                         iexclude_bitmap = (char*) realloc(iexclude_bitmap,
1344                                 iexclude_bitmap_bytes);
1345                         if (iexclude_bitmap == NULL) {
1346                                 msg("allocating memory failed\n");
1347                                 exit(X_STARTUP);
1348                         }
1349                         for( ; oldsize < iexclude_bitmap_bytes; oldsize++)
1350                                 iexclude_bitmap[oldsize] = 0;
1351                 }
1352         }
1353
1354         iexclude_bitmap[ino / 8] |= 1 << (ino % 8);
1355 }
1356
1357 static void
1358 do_exclude_ino_str(char * ino) {
1359         char *r;
1360         unsigned long inod;
1361
1362         inod = strtoul(ino, &r, 10);
1363         if (( *r != '\0' && !isspace(*r) ) || inod <= ROOTINO) {
1364                 msg("Invalid inode argument %s\n", ino);
1365                 msg("The ENTIRE dump is aborted.\n");
1366                 exit(X_STARTUP);
1367         }
1368         do_exclude_ino(inod, NULL);
1369 }
1370
1371 /*
1372  * This reads a file containing one inode number per line and exclude them all
1373  */
1374 static void
1375 do_exclude_from_file(char *file) {
1376         FILE *f;
1377         char *p, fname[MAXPATHLEN];
1378
1379
1380         if (!( f = fopen(file, "r")) ) {
1381                 msg("Cannot open file for reading: %s\n", file);
1382                 msg("The ENTIRE dump is aborted.\n");
1383                 exit(X_STARTUP);
1384         }
1385         while (( p = fgets(fname, MAXPATHLEN, f))) {
1386                 if ( *p && *(p + strlen(p) - 1) == '\n' ) /* possible null string */
1387                         *(p + strlen(p) - 1) = '\0';
1388                 if ( !*p ) /* skip empty lines */
1389                         continue;
1390                 do_exclude_ino_str(p);
1391         }
1392         fclose(f);
1393 }
1394
1395 static void incompat_flags(int cond, char flag1, char flag2) {
1396         if (cond) {
1397                 msg("You cannot use the %c and %c flags together.\n",
1398                     flag1, flag2);
1399                 msg("The ENTIRE dump is aborted.\n");
1400                 exit(X_STARTUP);
1401         }
1402 }