-/* crypto/bio/b_dump.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * 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.
+/*
+ * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
*
- * 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
*/
/*
*/
#include <stdio.h>
-#include "internal/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))
+#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)
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;
+ char buf[288 + 1];
+ int i, j, rows, trc, n;
unsigned char ch;
int dump_width;
if (indent < 0)
indent = 0;
- if (indent) {
- if (indent > 128)
- indent = 128;
- memset(str, ' ', indent);
- }
- str[indent] = '\0';
+ else if (indent > 128)
+ indent = 128;
dump_width = DUMP_WIDTH_LESS_INDENT(indent);
- rows = (len / dump_width);
+ rows = len / dump_width;
if ((rows * dump_width) < len)
rows++;
for (i = 0; i < rows; i++) {
- BUF_strlcpy(buf, str, sizeof buf);
- BIO_snprintf(tmp, sizeof tmp, "%04x - ", i * dump_width);
- BUF_strlcat(buf, tmp, sizeof buf);
+ n = BIO_snprintf(buf, sizeof(buf), "%*s%04x - ", indent, "",
+ i * dump_width);
for (j = 0; j < dump_width; j++) {
- if (((i * dump_width) + j) >= 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);
+ 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;
}
}
- BUF_strlcat(buf, " ", sizeof buf);
+ if (SPACE(buf, n, 2)) {
+ strcpy(buf + n, " ");
+ n += 2;
+ }
for (j = 0; j < dump_width; j++) {
if (((i * dump_width) + j) >= len)
break;
- ch = ((unsigned char)*(s + i * dump_width + j)) & 0xff;
+ 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[n] = '\0';
+ }
+ }
+ if (SPACE(buf, n, 1)) {
+ buf[n++] = '\n';
+ buf[n] = '\0';
}
- 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);
+ ret += cb((void *)buf, n, u);
}
#ifdef TRUNCATE
if (trc > 0) {
- BIO_snprintf(buf, sizeof buf, "%s%04x - <SPACES/NULS>\n", str,
- len + trc);
- ret += cb((void *)buf, strlen(buf), u);
+ n = BIO_snprintf(buf, sizeof(buf), "%*s%04x - <SPACES/NULS>\n",
+ indent, "", len + trc);
+ ret += cb((void *)buf, n, u);
}
#endif
- return (ret);
+ return ret;
}
#ifndef OPENSSL_NO_STDIO
projects / openssl.git / blobdiff