b_dump.c revision 280297
1255809Sdes/* crypto/bio/b_dump.c */ 2255809Sdes/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3255809Sdes * All rights reserved. 4255809Sdes * 5255809Sdes * This package is an SSL implementation written 6255809Sdes * by Eric Young (eay@cryptsoft.com). 7255825Sdes * The implementation was written so as to conform with Netscapes SSL. 8279499Sngie * 9255809Sdes * This library is free for commercial and non-commercial use as long as 10255809Sdes * the following conditions are aheared to. The following conditions 11255809Sdes * apply to all code found in this distribution, be it the RC4, RSA, 12255809Sdes * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13255809Sdes * included with this distribution is covered by the same copyright terms 14255809Sdes * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15255809Sdes * 16255809Sdes * Copyright remains Eric Young's, and as such any Copyright notices in 17255809Sdes * the code are not to be removed. 18255809Sdes * If this package is used in a product, Eric Young should be given attribution 19255809Sdes * as the author of the parts of the library used. 20291767Sdes * This can be in the form of a textual message at program startup or 21255809Sdes * in documentation (online or textual) provided with the package. 22255809Sdes * 23255809Sdes * Redistribution and use in source and binary forms, with or without 24255809Sdes * modification, are permitted provided that the following conditions 25255809Sdes * are met: 26255809Sdes * 1. Redistributions of source code must retain the copyright 27291767Sdes * notice, this list of conditions and the following disclaimer. 28291767Sdes * 2. Redistributions in binary form must reproduce the above copyright 29255809Sdes * notice, this list of conditions and the following disclaimer in the 30255809Sdes * documentation and/or other materials provided with the distribution. 31291767Sdes * 3. All advertising materials mentioning features or use of this software 32255809Sdes * must display the following acknowledgement: 33294786Sdes * "This product includes cryptographic software written by 34255809Sdes * Eric Young (eay@cryptsoft.com)" 35255809Sdes * The word 'cryptographic' can be left out if the rouines from the library 36255809Sdes * being used are not cryptographic related :-). 37255809Sdes * 4. If you include any Windows specific code (or a derivative thereof) from 38255809Sdes * the apps directory (application code) you must include an acknowledgement: 39255809Sdes * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40255809Sdes * 41255809Sdes * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42255809Sdes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43255809Sdes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44255809Sdes * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45255809Sdes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46255809Sdes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47255809Sdes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48255809Sdes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49255809Sdes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50255809Sdes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51255809Sdes * SUCH DAMAGE. 52255809Sdes * 53255809Sdes * The licence and distribution terms for any publically available version or 54255809Sdes * derivative of this code cannot be changed. i.e. this code cannot simply be 55255809Sdes * copied and put under another distribution licence 56255809Sdes * [including the GNU Public Licence.] 57255809Sdes */ 58255809Sdes 59255809Sdes/* 60255809Sdes * Stolen from tjh's ssl/ssl_trc.c stuff. 61255809Sdes */ 62255809Sdes 63255809Sdes#include <stdio.h> 64255809Sdes#include "cryptlib.h" 65255809Sdes#include "bio_lcl.h" 66255809Sdes 67255809Sdes#define TRUNCATE 68255809Sdes#define DUMP_WIDTH 16 69255809Sdes#define DUMP_WIDTH_LESS_INDENT(i) (DUMP_WIDTH-((i-(i>6?6:i)+3)/4)) 70255809Sdes 71255809Sdesint BIO_dump_cb(int (*cb) (const void *data, size_t len, void *u), 72294786Sdes void *u, const char *s, int len) 73255809Sdes{ 74255809Sdes return BIO_dump_indent_cb(cb, u, s, len, 0); 75255809Sdes} 76255809Sdes 77255809Sdesint BIO_dump_indent_cb(int (*cb) (const void *data, size_t len, void *u), 78255809Sdes void *u, const char *s, int len, int indent) 79255809Sdes{ 80255809Sdes int ret = 0; 81255809Sdes char buf[288 + 1], tmp[20], str[128 + 1]; 82255809Sdes int i, j, rows, trc; 83255809Sdes unsigned char ch; 84255809Sdes int dump_width; 85255809Sdes 86255809Sdes trc = 0; 87255809Sdes 88255809Sdes#ifdef TRUNCATE 89255809Sdes for (; (len > 0) && ((s[len - 1] == ' ') || (s[len - 1] == '\0')); len--) 90255809Sdes trc++; 91255809Sdes#endif 92255809Sdes 93255809Sdes if (indent < 0) 94291767Sdes indent = 0; 95291767Sdes if (indent) { 96291767Sdes if (indent > 128) 97291767Sdes indent = 128; 98291767Sdes memset(str, ' ', indent); 99291767Sdes } 100291767Sdes str[indent] = '\0'; 101291767Sdes 102291767Sdes dump_width = DUMP_WIDTH_LESS_INDENT(indent); 103291767Sdes rows = (len / dump_width); 104291767Sdes if ((rows * dump_width) < len) 105291767Sdes rows++; 106291767Sdes for (i = 0; i < rows; i++) { 107291767Sdes buf[0] = '\0'; /* start with empty string */ 108291767Sdes BUF_strlcpy(buf, str, sizeof buf); 109291767Sdes BIO_snprintf(tmp, sizeof tmp, "%04x - ", i * dump_width); 110291767Sdes BUF_strlcat(buf, tmp, sizeof buf); 111291767Sdes for (j = 0; j < dump_width; j++) { 112291767Sdes if (((i * dump_width) + j) >= len) { 113291767Sdes BUF_strlcat(buf, " ", sizeof buf); 114255809Sdes } else { 115255809Sdes 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