usr.bin/hexdump/conv.c

   1 /*      $NetBSD: conv.c,v 1.11 2003/10/27 00:12:43 lukem Exp $  */
   2
   3 /*
   4  * Copyright (c) 1989, 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[] = "@(#)conv.c      8.1 (Berkeley) 6/6/93";
  40 #else
  41 __RCSID("$NetBSD: conv.c,v 1.11 2003/10/27 00:12:43 lukem Exp $");
  42 #endif
  43 #endif /* not lint */
  44
  45 #include <sys/types.h>
  46
  47 #include <stdio.h>
  48 #include <ctype.h>
  49
  50 #include "hexdump.h"
  51
  52 void
  53 conv_c(PR *pr, u_char *p)
  54 {
  55         char buf[10];
  56         char const *str;
  57
  58         switch(*p) {
  59         case '\0':
  60                 str = "\\0";
  61                 goto strpr;
  62         /* case '\a': */
  63         case '\007':
  64                 if (deprecated)         /* od didn't know about \a */
  65                         break;
  66                 str = "\\a";
  67                 goto strpr;
  68         case '\b':
  69                 str = "\\b";
  70                 goto strpr;
  71         case '\f':
  72                 str = "\\f";
  73                 goto strpr;
  74         case '\n':
  75                 str = "\\n";
  76                 goto strpr;
  77         case '\r':
  78                 str = "\\r";
  79                 goto strpr;
  80         case '\t':
  81                 str = "\\t";
  82                 goto strpr;
  83         case '\v':
  84                 if (deprecated)
  85                         break;
  86                 str = "\\v";
  87                 goto strpr;
  88         default:
  89                 break;
  90         }
  91         if (isprint(*p)) {
  92                 *pr->cchar = 'c';
  93                 (void)printf(pr->fmt, *p);
  94         } else {
  95                 (void)sprintf(buf, "%03o", (int)*p);
  96                 str = buf;
  97 strpr:          *pr->cchar = 's';
  98                 (void)printf(pr->fmt, str);
  99         }
 100 }
 101
 102 void
 103 conv_u(PR *pr, u_char *p)
 104 {
 105         static const char *list[] = {
 106                 "nul", "soh", "stx", "etx", "eot", "enq", "ack", "bel",
 107                  "bs",  "ht",  "lf",  "vt",  "ff",  "cr",  "so",  "si",
 108                 "dle", "dcl", "dc2", "dc3", "dc4", "nak", "syn", "etb",
 109                 "can",  "em", "sub", "esc",  "fs",  "gs",  "rs",  "us",
 110         };
 111
 112                                                 /* od used nl, not lf */
 113         if (*p <= 0x1f) {
 114                 *pr->cchar = 's';
 115                 if (deprecated && *p == 0x0a)
 116                         (void)printf(pr->fmt, "nl");
 117                 else
 118                         (void)printf(pr->fmt, list[*p]);
 119         } else if (*p == 0x7f) {
 120                 *pr->cchar = 's';
 121                 (void)printf(pr->fmt, "del");
 122         } else if (deprecated && *p == 0x20) {  /* od replaced space with sp */
 123                 *pr->cchar = 's';
 124                 (void)printf(pr->fmt, " sp");
 125         } else if (isprint(*p)) {
 126                 *pr->cchar = 'c';
 127                 (void)printf(pr->fmt, *p);
 128         } else {
 129                 *pr->cchar = 'x';
 130                 (void)printf(pr->fmt, (int)*p);
 131         }
 132 }