text-utils/hexdump.c

   1 /*
   2  * Copyright (c) 1989 The Regents of the University of California.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34  /* 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@pld.ORG.PL>
  35   * - added Native Language Support
  36   */
  37
  38 #include <sys/types.h>
  39 #include <stdio.h>
  40 #include <string.h>
  41 #include <stdlib.h>
  42 #include "hexdump.h"
  43
  44 #include "nls.h"
  45 #include "c.h"
  46 #include "closestream.h"
  47
  48 FS *fshead;                             /* head of format strings */
  49 ssize_t blocksize;                      /* data block size */
  50 int exitval;                            /* final exit value */
  51 ssize_t length = -1;                    /* max bytes to read */
  52
  53 int main(int argc, char **argv)
  54 {
  55         FS *tfs;
  56         char *p;
  57
  58         setlocale(LC_ALL, "");
  59         bindtextdomain(PACKAGE, LOCALEDIR);
  60         textdomain(PACKAGE);
  61         atexit(close_stdout);
  62
  63         if (!(p = strrchr(argv[0], 'o')) || strcmp(p, "od")) {
  64                 newsyntax(argc, &argv);
  65         } else
  66                 errx(EXIT_FAILURE, _("calling hexdump as od has been deprecated "
  67                                      "in favour to GNU coreutils od."));
  68
  69         /* figure out the data block size */
  70         for (blocksize = 0, tfs = fshead; tfs; tfs = tfs->nextfs) {
  71                 tfs->bcnt = block_size(tfs);
  72                 if (blocksize < tfs->bcnt)
  73                         blocksize = tfs->bcnt;
  74         }
  75         /* rewrite the rules, do syntax checking */
  76         for (tfs = fshead; tfs; tfs = tfs->nextfs)
  77                 rewrite(tfs);
  78
  79         (void)next(argv);
  80         display();
  81         return exitval;
  82 }