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 "bio_lcl.h"
66
67 #define TRUNCATE
68 #define DUMP_WIDTH 16
69 #define DUMP_WIDTH_LESS_INDENT(i) (DUMP_WIDTH-((i-(i>6?6:i)+3)/4))
70
71 int BIO_dump_cb(int (*cb)(const void *data, size_t len, void *u),
72 void *u, const char *s, int len)
73 {
74 return BIO_dump_indent_cb(cb, u, s, len, 0);
75 }
76
77 int BIO_dump_indent_cb(int (*cb)(const void *data, size_t len, void *u),
78 void *u, const char *s, int len, int indent)
79 {
80 int ret=0;
81 char buf[288+1],tmp[20],str[128+1];
82 int i,j,rows,trc;
83 unsigned char ch;
84 int dump_width;
85
86 trc=0;
87
88 #ifdef TRUNCATE
89 for(; (len > 0) && ((s[len-1] == ' ') || (s[len-1] == '\0')); len--)
90 trc++;
91 #endif
92
93 if (indent < 0)
94 indent = 0;
95 if (indent)
96 {
97 if (indent > 128) indent=128;
98 memset(str,' ',indent);
99 }
100 str[indent]='\0';
101
102 dump_width=DUMP_WIDTH_LESS_INDENT(indent);
103 rows=(len/dump_width);
104 if ((rows*dump_width)<len)
105 rows++;
106 for(i=0;i<rows;i++)
107 {
108 buf[0]='\0'; /* start with empty string */
109 BUF_strlcpy(buf,str,sizeof buf);
110 BIO_snprintf(tmp,sizeof tmp,"%04x - ",i*dump_width);
111 BUF_strlcat(buf,tmp,sizeof buf);
112 for(j=0;j<dump_width;j++)
113 {
114 if (((i*dump_width)+j)>=len)
115 {
116 BUF_strlcat(buf," ",sizeof buf);
117 }
118 else
119 {
120 ch=((unsigned char)*(s+i*dump_width+j)) & 0xff;
121 BIO_snprintf(tmp,sizeof tmp,"%02x%c",ch,
122 j==7?'-':' ');
123 BUF_strlcat(buf,tmp,sizeof buf);
124 }
125 }
126 BUF_strlcat(buf," ",sizeof buf);
127 for(j=0;j<dump_width;j++)
128 {
129 if (((i*dump_width)+j)>=len)
130 break;
131 ch=((unsigned char)*(s+i*dump_width+j)) & 0xff;
132 #ifndef CHARSET_EBCDIC
133 BIO_snprintf(tmp,sizeof tmp,"%c",
134 ((ch>=' ')&&(ch<='~'))?ch:'.');
135 #else
136 BIO_snprintf(tmp,sizeof tmp,"%c",
137 ((ch>=os_toascii[' '])&&(ch<=os_toascii['~']))
138 ? os_toebcdic[ch]
139 : '.');
140 #endif
141 BUF_strlcat(buf,tmp,sizeof buf);
142 }
143 BUF_strlcat(buf,"\n",sizeof buf);
144 /* if this is the last call then update the ddt_dump thing so
145 * that we will move the selection point in the debug window
146 */
147 ret+=cb((void *)buf,strlen(buf),u);
148 }
149 #ifdef TRUNCATE
150 if (trc > 0)
151 {
152 BIO_snprintf(buf,sizeof buf,"%s%04x - <SPACES/NULS>\n",str,
153 len+trc);
154 ret+=cb((void *)buf,strlen(buf),u);
155 }
156 #endif
157 return(ret);
158 }
159
160 #ifndef OPENSSL_NO_FP_API
161 static int write_fp(const void *data, size_t len, void *fp)
162 {
163 return UP_fwrite(data, len, 1, fp);
164 }
165 int BIO_dump_fp(FILE *fp, const char *s, int len)
166 {
167 return BIO_dump_cb(write_fp, fp, s, len);
168 }
169 int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent)
170 {
171 return BIO_dump_indent_cb(write_fp, fp, s, len, indent);
172 }
173 #endif
174
175 static int write_bio(const void *data, size_t len, void *bp)
176 {
177 return BIO_write((BIO *)bp, (const char *)data, len);
178 }
179 int BIO_dump(BIO *bp, const char *s, int len)
180 {
181 return BIO_dump_cb(write_bio, bp, s, len);
182 }
183 int BIO_dump_indent(BIO *bp, const char *s, int len, int indent)
184 {
185 return BIO_dump_indent_cb(write_bio, bp, s, len, indent);
186 }
187