b_dump.c revision 296341
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 71int 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 77int 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 if (indent > 128) 97 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 buf[0] = '\0'; /* start with empty string */ 108 BUF_strlcpy(buf, str, sizeof buf); 109 BIO_snprintf(tmp, sizeof tmp, "%04x - ", i * dump_width); 110 BUF_strlcat(buf, tmp, sizeof buf); 111 for (j = 0; j < dump_width; j++) { 112 if (((i * dump_width) + j) >= len) { 113 BUF_strlcat(buf, " ", sizeof buf); 114 } else { 115 ch = ((unsigned char)*(s + i * dump_width + j)) & 0xff; 116 BIO_snprintf(tmp, sizeof tmp, "%02x%c", ch, 117 j == 7 ? '-' : ' '); 118 BUF_strlcat(buf, tmp, sizeof buf); 119 } 120 } 121 BUF_strlcat(buf, " ", sizeof buf); 122 for (j = 0; j < dump_width; j++) { 123 if (((i * dump_width) + j) >= len) 124 break; 125 ch = ((unsigned char)*(s + i * dump_width + j)) & 0xff; 126#ifndef CHARSET_EBCDIC 127 BIO_snprintf(tmp, sizeof tmp, "%c", 128 ((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 BUF_strlcat(buf, tmp, sizeof buf); 136 } 137 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 ret += cb((void *)buf, strlen(buf), u); 143 } 144#ifdef TRUNCATE 145 if (trc > 0) { 146 BIO_snprintf(buf, sizeof buf, "%s%04x - <SPACES/NULS>\n", str, 147 len + trc); 148 ret += cb((void *)buf, strlen(buf), u); 149 } 150#endif 151 return (ret); 152} 153 154#ifndef OPENSSL_NO_FP_API 155static int write_fp(const void *data, size_t len, void *fp) 156{ 157 return UP_fwrite(data, len, 1, fp); 158} 159 160int BIO_dump_fp(FILE *fp, const char *s, int len) 161{ 162 return BIO_dump_cb(write_fp, fp, s, len); 163} 164 165int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent) 166{ 167 return BIO_dump_indent_cb(write_fp, fp, s, len, indent); 168} 169#endif 170 171static int write_bio(const void *data, size_t len, void *bp) 172{ 173 return BIO_write((BIO *)bp, (const char *)data, len); 174} 175 176int BIO_dump(BIO *bp, const char *s, int len) 177{ 178 return BIO_dump_cb(write_bio, bp, s, len); 179} 180 181int BIO_dump_indent(BIO *bp, const char *s, int len, int indent) 182{ 183 return BIO_dump_indent_cb(write_bio, bp, s, len, indent); 184} 185