usr.bin/hexdump/hexsyntax.c

   1 /*-
   2  * Copyright (c) 1990, 1993
   3  *      The Regents of the University of California.  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 #ifndef lint
  35 #if 0
  36 static char sccsid[] = "@(#)hexsyntax.c 8.2 (Berkeley) 5/4/95";
  37 #endif
  38 #endif /* not lint */
  39 #include <sys/cdefs.h>
  40 __FBSDID("$FreeBSD$");
  41
  42 #include <sys/types.h>
  43
  44 #include <err.h>
  45 #include <stdio.h>
  46 #include <stdlib.h>
  47 #include <string.h>
  48 #include <unistd.h>
  49
  50 #include "hexdump.h"
  51
  52 off_t skip;                             /* bytes to skip */
  53
  54 void
  55 newsyntax(int argc, char ***argvp)
  56 {
  57         int ch;
  58         char *p, **argv;
  59
  60         argv = *argvp;
  61         if ((p = rindex(argv[0], 'h')) != NULL &&
  62             strcmp(p, "hd") == 0) {
  63                 /* "Canonical" format, implies -C. */
  64                 add("\"%08.8_Ax\n\"");
  65                 add("\"%08.8_ax  \" 8/1 \"%02x \" \"  \" 8/1 \"%02x \" ");
  66                 add("\"  |\" 16/1 \"%_p\" \"|\\n\"");
  67         }
  68         while ((ch = getopt(argc, argv, "bcCde:f:n:os:vx")) != -1)
  69                 switch (ch) {
  70                 case 'b':
  71                         add("\"%07.7_Ax\n\"");
  72                         add("\"%07.7_ax \" 16/1 \"%03o \" \"\\n\"");
  73                         break;
  74                 case 'c':
  75                         add("\"%07.7_Ax\n\"");
  76                         add("\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\"");
  77                         break;
  78                 case 'C':
  79                         add("\"%08.8_Ax\n\"");
  80                         add("\"%08.8_ax  \" 8/1 \"%02x \" \"  \" 8/1 \"%02x \" ");
  81                         add("\"  |\" 16/1 \"%_p\" \"|\\n\"");
  82                         break;
  83                 case 'd':
  84                         add("\"%07.7_Ax\n\"");
  85                         add("\"%07.7_ax \" 8/2 \"  %05u \" \"\\n\"");
  86                         break;
  87                 case 'e':
  88                         add(optarg);
  89                         break;
  90                 case 'f':
  91                         addfile(optarg);
  92                         break;
  93                 case 'n':
  94                         if ((length = atoi(optarg)) < 0)
  95                                 errx(1, "%s: bad length value", optarg);
  96                         break;
  97                 case 'o':
  98                         add("\"%07.7_Ax\n\"");
  99                         add("\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"");
 100                         break;
 101                 case 's':
 102                         if ((skip = strtoll(optarg, &p, 0)) < 0)
 103                                 errx(1, "%s: bad skip value", optarg);
 104                         switch(*p) {
 105                         case 'b':
 106                                 skip *= 512;
 107                                 break;
 108                         case 'k':
 109                                 skip *= 1024;
 110                                 break;
 111                         case 'm':
 112                                 skip *= 1048576;
 113                                 break;
 114                         }
 115                         break;
 116                 case 'v':
 117                         vflag = ALL;
 118                         break;
 119                 case 'x':
 120                         add("\"%07.7_Ax\n\"");
 121                         add("\"%07.7_ax \" 8/2 \"   %04x \" \"\\n\"");
 122                         break;
 123                 case '?':
 124                         usage();
 125                 }
 126
 127         if (!fshead) {
 128                 add("\"%07.7_Ax\n\"");
 129                 add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\"");
 130         }
 131
 132         *argvp += optind;
 133 }
 134
 135 void
 136 usage(void)
 137 {
 138         (void)fprintf(stderr, "%s\n%s\n%s\n%s\n",
 139 "usage: hexdump [-bcCdovx] [-e fmt] [-f fmt_file] [-n length]",
 140 "               [-s skip] [file ...]",
 141 "       hd      [-bcdovx]  [-e fmt] [-f fmt_file] [-n length]",
 142 "               [-s skip] [file ...]");
 143         exit(1);
 144 }