/* 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);

 	}