mbedtls/library/platform.c

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/*
* Platform abstraction layer
*
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* Copyright (C) 2006-2014, ARM Limited, All Rights Reserved
*
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* This file is part of mbed TLS (https://tls.mbed.org)
*
* 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.
*/
#if !defined(MBEDTLS_CONFIG_FILE)
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#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
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#include "mbedtls/platform.h"
#if defined(MBEDTLS_PLATFORM_MEMORY)
#if !defined(MBEDTLS_PLATFORM_STD_CALLOC)
static void *platform_calloc_uninit( size_t n, size_t size )
{
((void) n);
((void) size);
return( NULL );
}
#define MBEDTLS_PLATFORM_STD_CALLOC platform_calloc_uninit
#endif /* !MBEDTLS_PLATFORM_STD_CALLOC */
#if !defined(MBEDTLS_PLATFORM_STD_FREE)
static void platform_free_uninit( void *ptr )
{
((void) ptr);
}
#define MBEDTLS_PLATFORM_STD_FREE platform_free_uninit
#endif /* !MBEDTLS_PLATFORM_STD_FREE */
void * (*mbedtls_calloc)( size_t, size_t ) = MBEDTLS_PLATFORM_STD_CALLOC;
void (*mbedtls_free)( void * ) = MBEDTLS_PLATFORM_STD_FREE;
int mbedtls_platform_set_calloc_free( void * (*calloc_func)( size_t, size_t ),
void (*free_func)( void * ) )
{
mbedtls_calloc = calloc_func;
mbedtls_free = free_func;
return( 0 );
}
#endif /* MBEDTLS_PLATFORM_MEMORY */
#if defined(_WIN32)
#include <stdarg.h>
int mbedtls_platform_win32_snprintf( char *s, size_t n, const char *fmt, ... )
{
int ret;
va_list argp;
va_start( argp, fmt );
ret = _vsnprintf_s( s, n, _TRUNCATE, fmt, argp );
va_end( argp );
return( ret );
}
#endif
#if defined(MBEDTLS_PLATFORM_SNPRINTF_ALT)
#if !defined(MBEDTLS_PLATFORM_STD_SNPRINTF)
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/*
* Make dummy function to prevent NULL pointer dereferences
*/
static int platform_snprintf_uninit( char * s, size_t n,
const char * format, ... )
{
((void) s);
((void) n);
((void) format);
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return( 0 );
}
#define MBEDTLS_PLATFORM_STD_SNPRINTF platform_snprintf_uninit
#endif /* !MBEDTLS_PLATFORM_STD_SNPRINTF */
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int (*mbedtls_snprintf)( char * s, size_t n,
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const char * format,
... ) = MBEDTLS_PLATFORM_STD_SNPRINTF;
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int mbedtls_platform_set_snprintf( int (*snprintf_func)( char * s, size_t n,
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const char * format,
... ) )
{
mbedtls_snprintf = snprintf_func;
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return( 0 );
}
#endif /* MBEDTLS_PLATFORM_SNPRINTF_ALT */
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#if defined(MBEDTLS_PLATFORM_PRINTF_ALT)
#if !defined(MBEDTLS_PLATFORM_STD_PRINTF)
/*
* Make dummy function to prevent NULL pointer dereferences
*/
static int platform_printf_uninit( const char *format, ... )
{
((void) format);
return( 0 );
}
#define MBEDTLS_PLATFORM_STD_PRINTF platform_printf_uninit
#endif /* !MBEDTLS_PLATFORM_STD_PRINTF */
int (*mbedtls_printf)( const char *, ... ) = MBEDTLS_PLATFORM_STD_PRINTF;
int mbedtls_platform_set_printf( int (*printf_func)( const char *, ... ) )
{
mbedtls_printf = printf_func;
return( 0 );
}
#endif /* MBEDTLS_PLATFORM_PRINTF_ALT */
#if defined(MBEDTLS_PLATFORM_FPRINTF_ALT)
#if !defined(MBEDTLS_PLATFORM_STD_FPRINTF)
/*
* Make dummy function to prevent NULL pointer dereferences
*/
static int platform_fprintf_uninit( FILE *stream, const char *format, ... )
{
((void) stream);
((void) format);
return( 0 );
}
#define MBEDTLS_PLATFORM_STD_FPRINTF platform_fprintf_uninit
#endif /* !MBEDTLS_PLATFORM_STD_FPRINTF */
int (*mbedtls_fprintf)( FILE *, const char *, ... ) =
MBEDTLS_PLATFORM_STD_FPRINTF;
int mbedtls_platform_set_fprintf( int (*fprintf_func)( FILE *, const char *, ... ) )
{
mbedtls_fprintf = fprintf_func;
return( 0 );
}
#endif /* MBEDTLS_PLATFORM_FPRINTF_ALT */
#if defined(MBEDTLS_PLATFORM_EXIT_ALT)
#if !defined(MBEDTLS_PLATFORM_STD_EXIT)
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/*
* Make dummy function to prevent NULL pointer dereferences
*/
static void platform_exit_uninit( int status )
{
((void) status);
}
#define MBEDTLS_PLATFORM_STD_EXIT platform_exit_uninit
#endif /* !MBEDTLS_PLATFORM_STD_EXIT */
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void (*mbedtls_exit)( int status ) = MBEDTLS_PLATFORM_STD_EXIT;
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int mbedtls_platform_set_exit( void (*exit_func)( int status ) )
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{
mbedtls_exit = exit_func;
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return( 0 );
}
#endif /* MBEDTLS_PLATFORM_EXIT_ALT */
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#endif /* MBEDTLS_PLATFORM_C */