openssl/crypto/bio/b_dump.c
1998-12-21 10:56:39 +00:00

125 lines
4.6 KiB
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.h"
#define TRUNCATE
#define DUMP_WIDTH 16
int BIO_dump(bio,s,len)
BIO *bio;
char *s;
int len;
{
int ret=0;
char buf[160+1],tmp[20];
int i,j,rows,trunc;
unsigned char ch;
trunc=0;
#ifdef TRUNCATE
for(; (len > 0) && ((s[len-1] == ' ') || (s[len-1] == '\0')); len--)
trunc++;
#endif
rows=(len/DUMP_WIDTH);
if ((rows*DUMP_WIDTH)<len)
rows++;
for(i=0;i<rows;i++) {
buf[0]='\0'; /* start with empty string */
sprintf(tmp,"%04x - ",i*DUMP_WIDTH);
strcpy(buf,tmp);
for(j=0;j<DUMP_WIDTH;j++) {
if (((i*DUMP_WIDTH)+j)>=len) {
strcat(buf," ");
} else {
ch=((unsigned char)*((char *)(s)+i*DUMP_WIDTH+j)) & 0xff;
sprintf(tmp,"%02x%c",ch,j==7?'-':' ');
strcat(buf,tmp);
}
}
strcat(buf," ");
for(j=0;j<DUMP_WIDTH;j++) {
if (((i*DUMP_WIDTH)+j)>=len)
break;
ch=((unsigned char)*((char *)(s)+i*DUMP_WIDTH+j)) & 0xff;
sprintf(tmp,"%c",((ch>=' ')&&(ch<='~'))?ch:'.');
strcat(buf,tmp);
}
strcat(buf,"\n");
/* 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+=BIO_write(bio,(char *)buf,strlen(buf));
}
#ifdef TRUNCATE
if (trunc > 0) {
sprintf(buf,"%04x - <SPACES/NULS>\n",len+trunc);
ret+=BIO_write(bio,(char *)buf,strlen(buf));
}
#endif
return(ret);
}