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(POLARSSL_CONFIG_FILE)
#include "polarssl/config.h"
#else
#include POLARSSL_CONFIG_FILE
#endif
#if defined(POLARSSL_PLATFORM_C)
#include "polarssl/platform.h"
#if defined(POLARSSL_PLATFORM_MEMORY)
#if !defined(POLARSSL_PLATFORM_STD_MALLOC)
static void *platform_malloc_uninit( size_t len )
{
((void) len);
return( NULL );
}
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#define POLARSSL_PLATFORM_STD_MALLOC platform_malloc_uninit
#endif /* !POLARSSL_PLATFORM_STD_MALLOC */
#if !defined(POLARSSL_PLATFORM_STD_FREE)
static void platform_free_uninit( void *ptr )
{
((void) ptr);
}
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#define POLARSSL_PLATFORM_STD_FREE platform_free_uninit
#endif /* !POLARSSL_PLATFORM_STD_FREE */
void * (*polarssl_malloc)( size_t ) = POLARSSL_PLATFORM_STD_MALLOC;
void (*polarssl_free)( void * ) = POLARSSL_PLATFORM_STD_FREE;
int platform_set_malloc_free( void * (*malloc_func)( size_t ),
void (*free_func)( void * ) )
{
polarssl_malloc = malloc_func;
polarssl_free = free_func;
return( 0 );
}
#endif /* POLARSSL_PLATFORM_MEMORY */
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#if defined(POLARSSL_PLATFORM_SNPRINTF_ALT)
#if !defined(POLARSSL_PLATFORM_STD_SNPRINTF)
/*
* 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 POLARSSL_PLATFORM_STD_SNPRINTF platform_snprintf_uninit
#endif /* !POLARSSL_PLATFORM_STD_SNPRINTF */
int (*polarssl_snprintf)( char * s, size_t n,
const char * format,
... ) = POLARSSL_PLATFORM_STD_SNPRINTF;
int platform_set_snprintf( int (*snprintf_func)( char * s, size_t n,
const char * format,
... ) )
{
polarssl_snprintf = snprintf_func;
return( 0 );
}
#endif /* POLARSSL_PLATFORM_SNPRINTF_ALT */
#if defined(POLARSSL_PLATFORM_PRINTF_ALT)
#if !defined(POLARSSL_PLATFORM_STD_PRINTF)
/*
* Make dummy function to prevent NULL pointer dereferences
*/
static int platform_printf_uninit( const char *format, ... )
{
((void) format);
return( 0 );
}
#define POLARSSL_PLATFORM_STD_PRINTF platform_printf_uninit
#endif /* !POLARSSL_PLATFORM_STD_PRINTF */
int (*polarssl_printf)( const char *, ... ) = POLARSSL_PLATFORM_STD_PRINTF;
int platform_set_printf( int (*printf_func)( const char *, ... ) )
{
polarssl_printf = printf_func;
return( 0 );
}
#endif /* POLARSSL_PLATFORM_PRINTF_ALT */
#if defined(POLARSSL_PLATFORM_FPRINTF_ALT)
#if !defined(POLARSSL_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 POLARSSL_PLATFORM_STD_FPRINTF platform_fprintf_uninit
#endif /* !POLARSSL_PLATFORM_STD_FPRINTF */
int (*polarssl_fprintf)( FILE *, const char *, ... ) =
POLARSSL_PLATFORM_STD_FPRINTF;
int platform_set_fprintf( int (*fprintf_func)( FILE *, const char *, ... ) )
{
polarssl_fprintf = fprintf_func;
return( 0 );
}
#endif /* POLARSSL_PLATFORM_FPRINTF_ALT */
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#if defined(POLARSSL_PLATFORM_EXIT_ALT)
#if !defined(POLARSSL_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 POLARSSL_PLATFORM_STD_EXIT platform_exit_uninit
#endif /* !POLARSSL_PLATFORM_STD_EXIT */
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void (*polarssl_exit)( int status ) = POLARSSL_PLATFORM_STD_EXIT;
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int platform_set_exit( void (*exit_func)( int status ) )
{
polarssl_exit = exit_func;
return( 0 );
}
#endif /* POLARSSL_PLATFORM_EXIT_ALT */
#endif /* POLARSSL_PLATFORM_C */