Line data Source code
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 0 : int BIO_dump_cb(int (*cb) (const void *data, size_t len, void *u),
72 : void *u, const char *s, int len)
73 : {
74 0 : return BIO_dump_indent_cb(cb, u, s, len, 0);
75 : }
76 :
77 0 : 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 0 : for (; (len > 0) && ((s[len - 1] == ' ') || (s[len - 1] == '\0')); len--)
90 0 : trc++;
91 : #endif
92 :
93 0 : if (indent < 0)
94 : indent = 0;
95 0 : if (indent) {
96 0 : if (indent > 128)
97 : indent = 128;
98 0 : memset(str, ' ', indent);
99 : }
100 0 : str[indent] = '\0';
101 :
102 0 : dump_width = DUMP_WIDTH_LESS_INDENT(indent);
103 0 : rows = (len / dump_width);
104 0 : if ((rows * dump_width) < len)
105 0 : rows++;
106 0 : for (i = 0; i < rows; i++) {
107 0 : buf[0] = '\0'; /* start with empty string */
108 0 : BUF_strlcpy(buf, str, sizeof buf);
109 0 : BIO_snprintf(tmp, sizeof tmp, "%04x - ", i * dump_width);
110 0 : BUF_strlcat(buf, tmp, sizeof buf);
111 0 : for (j = 0; j < dump_width; j++) {
112 0 : if (((i * dump_width) + j) >= len) {
113 0 : BUF_strlcat(buf, " ", sizeof buf);
114 : } else {
115 0 : ch = ((unsigned char)*(s + i * dump_width + j)) & 0xff;
116 0 : BIO_snprintf(tmp, sizeof tmp, "%02x%c", ch,
117 : j == 7 ? '-' : ' ');
118 0 : BUF_strlcat(buf, tmp, sizeof buf);
119 : }
120 : }
121 0 : BUF_strlcat(buf, " ", sizeof buf);
122 0 : for (j = 0; j < dump_width; j++) {
123 0 : if (((i * dump_width) + j) >= len)
124 : break;
125 0 : ch = ((unsigned char)*(s + i * dump_width + j)) & 0xff;
126 : #ifndef CHARSET_EBCDIC
127 0 : BIO_snprintf(tmp, sizeof tmp, "%c",
128 0 : ((ch >= ' ') && (ch <= '~')) ? ch : '.');
129 : #else
130 : BIO_snprintf(tmp, sizeof tmp, "%c",
131 : ((ch >= os_toascii[' ']) && (ch <= os_toascii['~']))
132 : ? os_toebcdic[ch]
133 : : '.');
134 : #endif
135 0 : BUF_strlcat(buf, tmp, sizeof buf);
136 : }
137 0 : BUF_strlcat(buf, "\n", sizeof buf);
138 : /*
139 : * if this is the last call then update the ddt_dump thing so that we
140 : * will move the selection point in the debug window
141 : */
142 0 : ret += cb((void *)buf, strlen(buf), u);
143 : }
144 : #ifdef TRUNCATE
145 0 : if (trc > 0) {
146 0 : BIO_snprintf(buf, sizeof buf, "%s%04x - <SPACES/NULS>\n", str,
147 : len + trc);
148 0 : ret += cb((void *)buf, strlen(buf), u);
149 : }
150 : #endif
151 0 : return (ret);
152 : }
153 :
154 : #ifndef OPENSSL_NO_FP_API
155 0 : static int write_fp(const void *data, size_t len, void *fp)
156 : {
157 0 : return UP_fwrite(data, len, 1, fp);
158 : }
159 :
160 0 : int BIO_dump_fp(FILE *fp, const char *s, int len)
161 : {
162 0 : return BIO_dump_cb(write_fp, fp, s, len);
163 : }
164 :
165 0 : int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent)
166 : {
167 0 : return BIO_dump_indent_cb(write_fp, fp, s, len, indent);
168 : }
169 : #endif
170 :
171 0 : static int write_bio(const void *data, size_t len, void *bp)
172 : {
173 0 : return BIO_write((BIO *)bp, (const char *)data, len);
174 : }
175 :
176 0 : int BIO_dump(BIO *bp, const char *s, int len)
177 : {
178 0 : return BIO_dump_cb(write_bio, bp, s, len);
179 : }
180 :
181 0 : int BIO_dump_indent(BIO *bp, const char *s, int len, int indent)
182 : {
183 0 : return BIO_dump_indent_cb(write_bio, bp, s, len, indent);
184 : }
185 :
186 0 : int BIO_hex_string(BIO *out, int indent, int width, unsigned char *data,
187 : int datalen)
188 : {
189 : int i, j = 0;
190 :
191 0 : if (datalen < 1)
192 : return 1;
193 :
194 0 : for (i = 0; i < datalen - 1; i++) {
195 0 : if (i && !j)
196 0 : BIO_printf(out, "%*s", indent, "");
197 :
198 0 : BIO_printf(out, "%02X:", data[i]);
199 :
200 0 : j = (j + 1) % width;
201 0 : if (!j)
202 0 : BIO_printf(out, "\n");
203 : }
204 :
205 0 : if (i && !j)
206 0 : BIO_printf(out, "%*s", indent, "");
207 0 : BIO_printf(out, "%02X", data[datalen - 1]);
208 0 : return 1;
209 : }
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