/* 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.

 * 

 * 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.]

 */

/* 

 * Stolen from tjh's ssl/ssl_trc.c stuff.

 */

/*

 © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.

 */

#include <stdio.h>

#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))

EXPORT_C 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);

	}

EXPORT_C 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;

#ifndef SYMBIAN	

	char buf[288+1],tmp[20],str[128+1];

#else

  char buf[188+1],tmp[20],str[128+1];

#endif	

	int i,j,rows,trc;

	unsigned char ch;

	int dump_width;

	trc=0;

#ifdef TRUNCATE

	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)

		rows++;

	for(i=0;i<rows;i++)

		{

		buf[0]='\0';	/* start with empty string */

		BUF_strlcpy(buf,str,sizeof buf);

		BIO_snprintf(tmp,sizeof tmp,"%04x - ",i*dump_width);

		BUF_strlcat(buf,tmp,sizeof buf);

		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);

				}

			}

		BUF_strlcat(buf,"  ",sizeof buf);

		for(j=0;j<dump_width;j++)

			{

			if (((i*dump_width)+j)>=len)

				break;

			ch=((unsigned char)*(s+i*dump_width+j)) & 0xff;

#ifndef CHARSET_EBCDIC

			BIO_snprintf(tmp,sizeof tmp,"%c",

				((ch>=' ')&&(ch<='~'))?ch:'.');

#else

			BIO_snprintf(tmp,sizeof tmp,"%c",

				((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);

		}

#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);

		}

#endif

	return(ret);

	}

#ifndef OPENSSL_NO_FP_API

static int write_fp(const void *data, size_t len, void *fp)

	{

	return UP_fwrite(data, len, 1, fp);

	}

EXPORT_C int BIO_dump_fp(FILE *fp, const char *s, int len)

	{

	return BIO_dump_cb(write_fp, fp, s, len);

	}

EXPORT_C 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);

	}

#endif

static int write_bio(const void *data, size_t len, void *bp)

	{

	return BIO_write((BIO *)bp, (const char *)data, len);

	}

EXPORT_C int BIO_dump(BIO *bp, const char *s, int len)

	{

	return BIO_dump_cb(write_bio, bp, s, len);

	}

EXPORT_C int BIO_dump_indent(BIO *bp, const char *s, int len, int indent)

	{

	return BIO_dump_indent_cb(write_bio, bp, s, len, indent);

	}