ref: e14d6249749a1101abdad7998e1cd5cdc49e137a
dir: /sys/src/ape/lib/openssl/crypto/bio/b_dump.c/
/* 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.
*/
#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))
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;
#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);
}
int BIO_dump_fp(FILE *fp, const char *s, int 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);
}
#endif
static int write_bio(const void *data, size_t len, void *bp)
{
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);
}
int BIO_dump_indent(BIO *bp, const char *s, int len, int indent)
{
return BIO_dump_indent_cb(write_bio, bp, s, len, indent);
}