check in v3.8.1 source
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190
crypto/bio/b_dump.c
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190
crypto/bio/b_dump.c
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/* $OpenBSD: b_dump.c,v 1.26 2023/07/29 02:32:00 tb Exp $ */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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/*
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* Stolen from tjh's ssl/ssl_trc.c stuff.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <openssl/bio.h>
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#define TRUNCATE
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#define DUMP_WIDTH 16
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#define DUMP_WIDTH_LESS_INDENT(i) (DUMP_WIDTH - ((i - (i > 6 ? 6 : i) + 3) / 4))
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int
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BIO_dump_cb(int (*cb)(const void *data, size_t len, void *u),
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void *u, const char *s, int len)
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{
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return BIO_dump_indent_cb(cb, u, s, len, 0);
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}
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int
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BIO_dump_indent_cb(int (*cb)(const void *data, size_t len, void *u),
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void *u, const char *s, int len, int indent)
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{
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char buf[288 + 1], tmp[20], str[128 + 1];
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int i, j, rows, trc, written;
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unsigned char ch;
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int dump_width;
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int ret = 0;
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trc = 0;
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#ifdef TRUNCATE
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for (; (len > 0) && ((s[len - 1] == ' ') || (s[len - 1] == '\0')); len--)
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trc++;
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#endif
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if (indent < 0)
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indent = 0;
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if (indent > 64)
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indent = 64;
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memset(str, ' ', indent);
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str[indent] = '\0';
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if ((dump_width = DUMP_WIDTH_LESS_INDENT(indent)) <= 0)
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return -1;
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rows = (len / dump_width);
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if ((rows * dump_width) < len)
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rows++;
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for (i = 0; i < rows; i++) {
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strlcpy(buf, str, sizeof buf);
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snprintf(tmp, sizeof tmp, "%04x - ", i*dump_width);
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strlcat(buf, tmp, sizeof buf);
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for (j = 0; j < dump_width; j++) {
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if (((i*dump_width) + j) >= len) {
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strlcat(buf, " ", sizeof buf);
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} else {
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ch = ((unsigned char)*(s + i*dump_width + j)) & 0xff;
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snprintf(tmp, sizeof tmp, "%02x%c", ch,
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j == 7 ? '-' : ' ');
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strlcat(buf, tmp, sizeof buf);
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}
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}
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strlcat(buf, " ", sizeof buf);
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for (j = 0; j < dump_width; j++) {
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if (((i*dump_width) + j) >= len)
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break;
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ch = ((unsigned char)*(s + i * dump_width + j)) & 0xff;
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snprintf(tmp, sizeof tmp, "%c",
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((ch >= ' ') && (ch <= '~')) ? ch : '.');
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strlcat(buf, tmp, sizeof buf);
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}
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strlcat(buf, "\n", sizeof buf);
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/* if this is the last call then update the ddt_dump thing so
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* that we will move the selection point in the debug window
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*/
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if ((written = cb((void *)buf, strlen(buf), u)) < 0)
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return -1;
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ret += written;
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}
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#ifdef TRUNCATE
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if (trc > 0) {
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snprintf(buf, sizeof buf, "%s%04x - <SPACES/NULS>\n",
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str, len + trc);
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if ((written = cb((void *)buf, strlen(buf), u)) < 0)
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return -1;
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ret += written;
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}
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#endif
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return (ret);
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}
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static int
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write_fp(const void *data, size_t len, void *fp)
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{
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return fwrite(data, 1, len, fp);
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}
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int
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BIO_dump_fp(FILE *fp, const char *s, int len)
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{
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return BIO_dump_cb(write_fp, fp, s, len);
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}
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LCRYPTO_ALIAS(BIO_dump_fp);
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int
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BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent)
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{
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return BIO_dump_indent_cb(write_fp, fp, s, len, indent);
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}
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LCRYPTO_ALIAS(BIO_dump_indent_fp);
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static int
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write_bio(const void *data, size_t len, void *bp)
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{
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return BIO_write((BIO *)bp, (const char *)data, len);
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}
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int
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BIO_dump(BIO *bp, const char *s, int len)
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{
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return BIO_dump_cb(write_bio, bp, s, len);
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}
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LCRYPTO_ALIAS(BIO_dump);
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int
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BIO_dump_indent(BIO *bp, const char *s, int len, int indent)
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{
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return BIO_dump_indent_cb(write_bio, bp, s, len, indent);
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}
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LCRYPTO_ALIAS(BIO_dump_indent);
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