X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fbio%2Fb_dump.c;h=f5391406e87b2654c9fe7cd04b470b691f54654f;hp=b3a5f7d0315afa355a5e3501fe00bb772bee357c;hb=59e539e6429d9c3b5c4db07569f09ec6acc5a7e9;hpb=b263f2124607c42a1013b6b342341196b2bdec8d diff --git a/crypto/bio/b_dump.c b/crypto/bio/b_dump.c index b3a5f7d031..f5391406e8 100644 --- a/crypto/bio/b_dump.c +++ b/crypto/bio/b_dump.c @@ -1,209 +1,163 @@ -/* crypto/bio/b_dump.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. +/* + * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved. * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ -/* +/* * Stolen from tjh's ssl/ssl_trc.c stuff. */ #include -#include "cryptlib.h" #include "bio_lcl.h" #define TRUNCATE -#define DUMP_WIDTH 16 -#define DUMP_WIDTH_LESS_INDENT(i) (DUMP_WIDTH-((i-(i>6?6:i)+3)/4)) - -int BIO_dump_cb(int (*cb)(const void *data, size_t len, void *u), - void *u, const char *s, int len) - { - return BIO_dump_indent_cb(cb, u, s, len, 0); - } - -int BIO_dump_indent_cb(int (*cb)(const void *data, size_t len, void *u), - void *u, const char *s, int len, int indent) - { - int ret=0; - char buf[288+1],tmp[20],str[128+1]; - int i,j,rows,trc; - unsigned char ch; - int dump_width; - - trc=0; +#define DUMP_WIDTH 16 +#define DUMP_WIDTH_LESS_INDENT(i) (DUMP_WIDTH - ((i - (i > 6 ? 6 : i) + 3) / 4)) + +#define SPACE(buf, pos, n) (sizeof(buf) - (pos) > (n)) + +int BIO_dump_cb(int (*cb) (const void *data, size_t len, void *u), + void *u, const char *s, int len) +{ + return BIO_dump_indent_cb(cb, u, s, len, 0); +} + +int BIO_dump_indent_cb(int (*cb) (const void *data, size_t len, void *u), + void *u, const char *s, int len, int indent) +{ + int ret = 0; + char buf[288 + 1]; + int i, j, rows, trc, n; + unsigned char ch; + int dump_width; + + trc = 0; #ifdef TRUNCATE - for(; (len > 0) && ((s[len-1] == ' ') || (s[len-1] == '\0')); len--) - trc++; + for (; (len > 0) && ((s[len - 1] == ' ') || (s[len - 1] == '\0')); len--) + trc++; #endif - if (indent < 0) - indent = 0; - if (indent) - { - if (indent > 128) indent=128; - memset(str,' ',indent); - } - str[indent]='\0'; - - dump_width=DUMP_WIDTH_LESS_INDENT(indent); - rows=(len/dump_width); - if ((rows*dump_width)=len) - { - BUF_strlcat(buf," ",sizeof buf); - } - else - { - ch=((unsigned char)*(s+i*dump_width+j)) & 0xff; - BIO_snprintf(tmp,sizeof tmp,"%02x%c",ch, - j==7?'-':' '); - BUF_strlcat(buf,tmp,sizeof buf); - } - } - BUF_strlcat(buf," ",sizeof buf); - for(j=0;j=len) - break; - ch=((unsigned char)*(s+i*dump_width+j)) & 0xff; + if (indent < 0) + indent = 0; + else if (indent > 128) + indent = 128; + + dump_width = DUMP_WIDTH_LESS_INDENT(indent); + rows = len / dump_width; + if ((rows * dump_width) < len) + rows++; + for (i = 0; i < rows; i++) { + n = BIO_snprintf(buf, sizeof(buf), "%*s%04x - ", indent, "", + i * dump_width); + for (j = 0; j < dump_width; j++) { + if (SPACE(buf, n, 3)) { + if (((i * dump_width) + j) >= len) { + strcpy(buf + n, " "); + } else { + ch = ((unsigned char)*(s + i * dump_width + j)) & 0xff; + BIO_snprintf(buf + n, 4, "%02x%c", ch, + j == 7 ? '-' : ' '); + } + n += 3; + } + } + if (SPACE(buf, n, 2)) { + strcpy(buf + n, " "); + n += 2; + } + for (j = 0; j < dump_width; j++) { + if (((i * dump_width) + j) >= len) + break; + if (SPACE(buf, n, 1)) { + ch = ((unsigned char)*(s + i * dump_width + j)) & 0xff; #ifndef CHARSET_EBCDIC - BIO_snprintf(tmp,sizeof tmp,"%c", - ((ch>=' ')&&(ch<='~'))?ch:'.'); + buf[n++] = ((ch >= ' ') && (ch <= '~')) ? ch : '.'; #else - BIO_snprintf(tmp,sizeof tmp,"%c", - ((ch>=os_toascii[' '])&&(ch<=os_toascii['~'])) - ? os_toebcdic[ch] - : '.'); + buf[n++] = ((ch >= os_toascii[' ']) && (ch <= os_toascii['~'])) + ? os_toebcdic[ch] + : '.'; #endif - BUF_strlcat(buf,tmp,sizeof buf); - } - BUF_strlcat(buf,"\n",sizeof buf); - /* if this is the last call then update the ddt_dump thing so - * that we will move the selection point in the debug window - */ - ret+=cb((void *)buf,strlen(buf),u); - } + buf[n] = '\0'; + } + } + if (SPACE(buf, n, 1)) { + buf[n++] = '\n'; + buf[n] = '\0'; + } + /* + * if this is the last call then update the ddt_dump thing so that we + * will move the selection point in the debug window + */ + ret += cb((void *)buf, n, u); + } #ifdef TRUNCATE - if (trc > 0) - { - BIO_snprintf(buf,sizeof buf,"%s%04x - \n",str, - len+trc); - ret+=cb((void *)buf,strlen(buf),u); - } + if (trc > 0) { + n = BIO_snprintf(buf, sizeof(buf), "%*s%04x - \n", + indent, "", len + trc); + ret += cb((void *)buf, n, u); + } #endif - return(ret); - } + return ret; +} -#ifndef OPENSSL_NO_FP_API +#ifndef OPENSSL_NO_STDIO static int write_fp(const void *data, size_t len, void *fp) - { - return UP_fwrite(data, len, 1, fp); - } +{ + return UP_fwrite(data, len, 1, fp); +} + int BIO_dump_fp(FILE *fp, const char *s, int len) - { - return BIO_dump_cb(write_fp, fp, s, len); - } +{ + return BIO_dump_cb(write_fp, fp, s, len); +} + int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent) - { - return BIO_dump_indent_cb(write_fp, fp, s, len, indent); - } +{ + return BIO_dump_indent_cb(write_fp, fp, s, len, indent); +} #endif static int write_bio(const void *data, size_t len, void *bp) - { - return BIO_write((BIO *)bp, (const char *)data, len); - } +{ + return BIO_write((BIO *)bp, (const char *)data, len); +} + int BIO_dump(BIO *bp, const char *s, int len) - { - return BIO_dump_cb(write_bio, bp, s, len); - } +{ + return BIO_dump_cb(write_bio, bp, s, len); +} + int BIO_dump_indent(BIO *bp, const char *s, int len, int indent) - { - return BIO_dump_indent_cb(write_bio, bp, s, len, indent); - } +{ + return BIO_dump_indent_cb(write_bio, bp, s, len, indent); +} int BIO_hex_string(BIO *out, int indent, int width, unsigned char *data, - int datalen) - { - int i, j = 0; + int datalen) +{ + int i, j = 0; - if (datalen < 1) - return 1; + if (datalen < 1) + return 1; - for (i = 0; i < datalen - 1; i++) - { - if (i && !j) BIO_printf(out, "%*s", indent, ""); + for (i = 0; i < datalen - 1; i++) { + if (i && !j) + BIO_printf(out, "%*s", indent, ""); - BIO_printf(out, "%02X:", data[i]); + BIO_printf(out, "%02X:", data[i]); - j = (j + 1) % width; - if (!j) BIO_printf(out, "\n"); - } + j = (j + 1) % width; + if (!j) + BIO_printf(out, "\n"); + } - if (i && !j) BIO_printf(out, "%*s", indent, ""); - BIO_printf(out, "%02X", data[datalen - 1]); - return 1; - } + if (i && !j) + BIO_printf(out, "%*s", indent, ""); + BIO_printf(out, "%02X", data[datalen - 1]); + return 1; +}