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/********************************************************************************/
/* */
/* Debug Helper */
/* Written by Ken Goldman */
/* IBM Thomas J. Watson Research Center */
/* $Id: DebugHelpers.c 1658 2021-01-22 23:14:01Z kgoldman $ */
/* */
/* Licenses and Notices */
/* */
/* 1. Copyright Licenses: */
/* */
/* - Trusted Computing Group (TCG) grants to the user of the source code in */
/* this specification (the "Source Code") a worldwide, irrevocable, */
/* nonexclusive, royalty free, copyright license to reproduce, create */
/* derivative works, distribute, display and perform the Source Code and */
/* derivative works thereof, and to grant others the rights granted herein. */
/* */
/* - The TCG grants to the user of the other parts of the specification */
/* (other than the Source Code) the rights to reproduce, distribute, */
/* display, and perform the specification solely for the purpose of */
/* developing products based on such documents. */
/* */
/* 2. Source Code Distribution Conditions: */
/* */
/* - Redistributions of Source Code must retain the above copyright licenses, */
/* this list of conditions and the following disclaimers. */
/* */
/* - Redistributions in binary form must reproduce the above copyright */
/* licenses, this list of conditions and the following disclaimers in the */
/* documentation and/or other materials provided with the distribution. */
/* */
/* 3. Disclaimers: */
/* */
/* - THE COPYRIGHT LICENSES SET FORTH ABOVE DO NOT REPRESENT ANY FORM OF */
/* LICENSE OR WAIVER, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, WITH */
/* RESPECT TO PATENT RIGHTS HELD BY TCG MEMBERS (OR OTHER THIRD PARTIES) */
/* THAT MAY BE NECESSARY TO IMPLEMENT THIS SPECIFICATION OR OTHERWISE. */
/* Contact TCG Administration (admin@trustedcomputinggroup.org) for */
/* information on specification licensing rights available through TCG */
/* membership agreements. */
/* */
/* - THIS SPECIFICATION IS PROVIDED "AS IS" WITH NO EXPRESS OR IMPLIED */
/* WARRANTIES WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR */
/* FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, COMPLETENESS, OR */
/* NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS, OR ANY WARRANTY */
/* OTHERWISE ARISING OUT OF ANY PROPOSAL, SPECIFICATION OR SAMPLE. */
/* */
/* - Without limitation, TCG and its members and licensors disclaim all */
/* liability, including liability for infringement of any proprietary */
/* rights, relating to use of information in this specification and to the */
/* implementation of this specification, and TCG disclaims all liability for */
/* cost of procurement of substitute goods or services, lost profits, loss */
/* of use, loss of data or any incidental, consequential, direct, indirect, */
/* or special damages, whether under contract, tort, warranty or otherwise, */
/* arising in any way out of use or reliance upon this specification or any */
/* information herein. */
/* */
/* (c) Copyright IBM Corp. and others, 2019 - 2021 */
/* */
/********************************************************************************/
/* C.13 DebugHelpers.c */
/* C.13.1. Description */
/* This file contains the NV read and write access methods. This implementation uses RAM/file and
does not manage the RAM/file as NV blocks. The implementation may become more sophisticated over
time. */
/* C.13.2. Includes and Local */
#include <stdio.h>
#include <time.h>
#include "Platform.h"
#include "DebugHelpers_fp.h"
#if CERTIFYX509_DEBUG
const char *debugFileName = "DebugFile.txt";
/* C.13.2.1. fileOpen() */
/* This exists to allow use of the safe version of fopen() with a MS runtime. */
static FILE *
fileOpen(
const char *fn,
const char *mode
)
{
FILE *f;
# if defined _MSC_VER
if(fopen_s(&f, fn, mode) != 0)
f = NULL;
# else
f = fopen(fn, mode);
# endif
return f;
}
/* C.13.2.2. DebugFileInit() */
/* This function initializes the file containing the debug data with the time of the file
creation. */
/* This function opens the file used to hold the debug data. */
/* Return Value Meaning */
/* 0 success */
/* != 0 error */
int
DebugFileInit(
void
)
{
FILE *f = NULL;
time_t t = time(NULL);
//
// Get current date and time.
# if defined _MSC_VER
char timeString[100];
ctime_s(timeString, (size_t)sizeof(timeString), &t);
# else
char *timeString;
timeString = ctime(&t);
# endif
// Try to open the debug file
f = fileOpen(debugFileName, "w");
if(f)
{
/* Initialize the contents with the time. */
fprintf(f, "%s\n", timeString);
fclose(f);
return 0;
}
return -1;
}
/* C.13.2.3. DebugDumpBuffer() */
void
DebugDumpBuffer(
int size,
unsigned char *buf,
const char *identifier
)
{
int i;
//
FILE *f = fileOpen(debugFileName, "a");
if(!f)
return;
if(identifier)
fprintf(f, "%s\n", identifier);
if(buf)
{
for(i = 0; i < size; i++)
{
if(((i % 16) == 0) && (i))
fprintf(f, "\n");
fprintf(f, " %02X", buf[i]);
}
if((size % 16) != 0)
fprintf(f, "\n");
}
fclose(f);
}
#endif // CERTIFYX509_DEBUG
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