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/*
* Error message information
*
* Copyright (C) 2006-2012, Brainspark B.V.
*
* This file is part of PolarSSL (http://www.polarssl.org)
* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
*
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "polarssl/config.h"
#if defined(POLARSSL_ERROR_C)
#include "polarssl/error.h"
HEADER_INCLUDED
#include <string.h>
#if defined(EFIX64) || defined(EFI32)
#include <stdio.h>
#endif
#if defined(_MSC_VER) && !defined snprintf
#define snprintf _snprintf
#endif
void polarssl_strerror( int ret, char *buf, size_t buflen )
{
size_t len;
int use_ret;
if( buflen == 0 )
return;
memset( buf, 0x00, buflen );
/* Reduce buflen to make sure MSVC _snprintf() ends with \0 as well */
buflen -= 1;
if( ret < 0 )
ret = -ret;
if( ret & 0xFF80 )
{
use_ret = ret & 0xFF80;
// High level error codes
//
HIGH_LEVEL_CODE_CHECKS
if( strlen( buf ) == 0 )
snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret );
}
use_ret = ret & ~0xFF80;
if( use_ret == 0 )
return;
// If high level code is present, make a concatenation between both
// error strings.
//
len = strlen( buf );
if( len > 0 )
{
if( buflen - len < 5 )
return;
snprintf( buf + len, buflen - len, " : " );
buf += len + 3;
buflen -= len + 3;
}
// Low level error codes
//
LOW_LEVEL_CODE_CHECKS
if( strlen( buf ) != 0 )
return;
snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret );
}
#if defined(POLARSSL_ERROR_STRERROR_BC)
void error_strerror( int ret, char *buf, size_t buflen )
{
polarssl_strerror( ret, buf, buflen );
}
#endif /* POLARSSL_ERROR_STRERROR_BC */
#else /* POLARSSL_ERROR_C */
#if defined(POLARSSL_ERROR_STRERROR_DUMMY)
#include <string.h>
/*
* Provide an non-function in case POLARSSL_ERROR_C is not defined
*/
void polarssl_strerror( int ret, char *buf, size_t buflen )
{
((void) ret);
if( buflen > 0 )
buf[0] = '\0';
}
#if defined(POLARSSL_ERROR_STRERROR_BC)
void error_strerror( int ret, char *buf, size_t buflen )
{
polarssl_strerror( ret, buf, buflen );
}
#endif /* POLARSSL_ERROR_STRERROR_BC */
#endif /* POLARSSL_ERROR_STRERROR_DUMMY */
#endif /* POLARSSL_ERROR_C */