b_dump.c revision 55714 
1/* crypto/bio/b_dump.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to.  The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 *    notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 *    notice, this list of conditions and the following disclaimer in the
30 *    documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 *    must display the following acknowledgement:
33 *    "This product includes cryptographic software written by
34 *     Eric Young (eay@cryptsoft.com)"
35 *    The word 'cryptographic' can be left out if the rouines from the library
36 *    being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 *    the apps directory (application code) you must include an acknowledgement:
39 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed.  i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59/*
60 * Stolen from tjh's ssl/ssl_trc.c stuff.
61 */
62
63#include <stdio.h>
64#include "cryptlib.h"
65#include <openssl/bio.h>
66
67#define TRUNCATE
68#define DUMP_WIDTH	16
69
70int BIO_dump(BIO *bio, const char *s, int len)
71{
72  int ret=0;
73  char buf[160+1],tmp[20];
74  int i,j,rows,trunc;
75  unsigned char ch;
76
77  trunc=0;
78
79#ifdef TRUNCATE
80  for(; (len > 0) && ((s[len-1] == ' ') || (s[len-1] == '\0')); len--)
81    trunc++;
82#endif
83
84  rows=(len/DUMP_WIDTH);
85  if ((rows*DUMP_WIDTH)<len)
86    rows++;
87  for(i=0;i<rows;i++) {
88    buf[0]='\0';	/* start with empty string */
89    sprintf(tmp,"%04x - ",i*DUMP_WIDTH);
90    strcpy(buf,tmp);
91    for(j=0;j<DUMP_WIDTH;j++) {
92      if (((i*DUMP_WIDTH)+j)>=len) {
93	strcat(buf,"   ");
94      } else {
95        ch=((unsigned char)*((char *)(s)+i*DUMP_WIDTH+j)) & 0xff;
96	sprintf(tmp,"%02x%c",ch,j==7?'-':' ');
97        strcat(buf,tmp);
98      }
99    }
100    strcat(buf,"  ");
101    for(j=0;j<DUMP_WIDTH;j++) {
102      if (((i*DUMP_WIDTH)+j)>=len)
103	break;
104      ch=((unsigned char)*((char *)(s)+i*DUMP_WIDTH+j)) & 0xff;
105#ifndef CHARSET_EBCDIC
106      sprintf(tmp,"%c",((ch>=' ')&&(ch<='~'))?ch:'.');
107#else
108      sprintf(tmp,"%c",((ch>=os_toascii[' '])&&(ch<=os_toascii['~']))
109	      ? os_toebcdic[ch]
110	      : '.');
111#endif
112      strcat(buf,tmp);
113    }
114    strcat(buf,"\n");
115    /* if this is the last call then update the ddt_dump thing so that
116     * we will move the selection point in the debug window
117     */
118    ret+=BIO_write(bio,(char *)buf,strlen(buf));
119  }
120#ifdef TRUNCATE
121  if (trunc > 0) {
122    sprintf(buf,"%04x - <SPACES/NULS>\n",len+trunc);
123    ret+=BIO_write(bio,(char *)buf,strlen(buf));
124  }
125#endif
126  return(ret);
127}
128
129