usr.bin/hexdump/hexsyntax.c

   1 /*      $NetBSD: hexsyntax.c,v 1.12 2003/10/27 00:12:43 lukem Exp $     */
   2
   3 /*-
   4  * Copyright (c) 1990, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #if HAVE_NBTOOL_CONFIG_H
  33 #include "nbtool_config.h"
  34 #endif
  35
  36 #include <sys/cdefs.h>
  37 #if !defined(lint)
  38 #if 0
  39 static char sccsid[] = "@(#)hexsyntax.c 8.2 (Berkeley) 5/4/95";
  40 #else
  41 __RCSID("$NetBSD: hexsyntax.c,v 1.12 2003/10/27 00:12:43 lukem Exp $");
  42 #endif
  43 #endif /* not lint */
  44
  45 #include <sys/types.h>
  46
  47 #include <err.h>
  48 #include <stdio.h>
  49 #include <stdlib.h>
  50 #include <string.h>
  51 #include <unistd.h>
  52
  53 #include "hexdump.h"
  54
  55 off_t skip;                             /* bytes to skip */
  56
  57 void
  58 newsyntax(int argc, char ***argvp)
  59 {
  60         int ch;
  61         char *p, **argv;
  62
  63         argv = *argvp;
  64         while ((ch = getopt(argc, argv, "bcCde:f:n:os:vx")) != -1)
  65                 switch (ch) {
  66                 case 'b':
  67                         add("\"%07.7_Ax\n\"");
  68                         add("\"%07.7_ax \" 16/1 \"%03o \" \"\\n\"");
  69                         break;
  70                 case 'c':
  71                         add("\"%07.7_Ax\n\"");
  72                         add("\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\"");
  73                         break;
  74                 case 'C':
  75                         add("\"%08.8_Ax\n\"");
  76                         add("\"%08.8_ax  \" 8/1 \"%02x \" \"  \" 8/1 \"%02x \" ");
  77                         add("\"  |\" 16/1 \"%_p\" \"|\\n\"");
  78                         break;
  79                 case 'd':
  80                         add("\"%07.7_Ax\n\"");
  81                         add("\"%07.7_ax \" 8/2 \"  %05u \" \"\\n\"");
  82                         break;
  83                 case 'e':
  84                         add(optarg);
  85                         break;
  86                 case 'f':
  87                         addfile(optarg);
  88                         break;
  89                 case 'n':
  90                         if ((length = atoi(optarg)) < 0)
  91                                 errx(1, "%s: bad length value", optarg);
  92                         break;
  93                 case 'o':
  94                         add("\"%07.7_Ax\n\"");
  95                         add("\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"");
  96                         break;
  97                 case 's':
  98                         if ((skip = strtol(optarg, &p, 0)) < 0)
  99                                 errx(1, "%s: bad skip value", optarg);
 100                         switch(*p) {
 101                         case 'b':
 102                                 skip *= 512;
 103                                 break;
 104                         case 'k':
 105                                 skip *= 1024;
 106                                 break;
 107                         case 'm':
 108                                 skip *= 1048576;
 109                                 break;
 110                         }
 111                         break;
 112                 case 'v':
 113                         vflag = ALL;
 114                         break;
 115                 case 'x':
 116                         add("\"%07.7_Ax\n\"");
 117                         add("\"%07.7_ax \" 8/2 \"   %04x \" \"\\n\"");
 118                         break;
 119                 case '?':
 120                         usage();
 121                 }
 122
 123         if (!fshead) {
 124                 add("\"%07.7_Ax\n\"");
 125                 add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\"");
 126         }
 127
 128         *argvp += optind;
 129 }
 130
 131 void
 132 usage(void)
 133 {
 134         (void)fprintf(stderr,
 135 "hexdump: [-bcCdovx] [-e fmt] [-f fmt_file] [-n length] [-s skip] [file ...]\n"
 136         );
 137         exit(1);
 138 }