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- #if !defined(_POSIX_C_SOURCE)
- #define _POSIX_C_SOURCE 200112L
- #endif
- #if !defined(MBEDTLS_CONFIG_FILE)
- #include "mbedtls/config.h"
- #else
- #include MBEDTLS_CONFIG_FILE
- #endif
- #include "mbedtls/platform_util.h"
- #include "mbedtls/platform.h"
- #include "mbedtls/threading.h"
- #include <stddef.h>
- #include <string.h>
- #if !defined(MBEDTLS_PLATFORM_ZEROIZE_ALT)
- static void * (* const volatile memset_func)( void *, int, size_t ) = memset;
- void mbedtls_platform_zeroize( void *buf, size_t len )
- {
- MBEDTLS_INTERNAL_VALIDATE( len == 0 || buf != NULL );
- if( len > 0 )
- memset_func( buf, 0, len );
- }
- #endif
- #if defined(MBEDTLS_HAVE_TIME_DATE) && !defined(MBEDTLS_PLATFORM_GMTIME_R_ALT)
- #include <time.h>
- #if !defined(_WIN32) && (defined(unix) || \
- defined(__unix) || defined(__unix__) || (defined(__APPLE__) && \
- defined(__MACH__)))
- #include <unistd.h>
- #endif
- #if !( ( defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L ) || \
- ( defined(_POSIX_THREAD_SAFE_FUNCTIONS ) && \
- _POSIX_THREAD_SAFE_FUNCTIONS >= 20112L ) )
- #if ! ( defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) )
- #define PLATFORM_UTIL_USE_GMTIME
- #endif
- #endif
- struct tm *mbedtls_platform_gmtime_r( const mbedtls_time_t *tt,
- struct tm *tm_buf )
- {
- #if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
- return( ( gmtime_s( tm_buf, tt ) == 0 ) ? tm_buf : NULL );
- #elif !defined(PLATFORM_UTIL_USE_GMTIME)
- return( gmtime_r( tt, tm_buf ) );
- #else
- struct tm *lt;
- #if defined(MBEDTLS_THREADING_C)
- if( mbedtls_mutex_lock( &mbedtls_threading_gmtime_mutex ) != 0 )
- return( NULL );
- #endif
- lt = gmtime( tt );
- if( lt != NULL )
- {
- memcpy( tm_buf, lt, sizeof( struct tm ) );
- }
- #if defined(MBEDTLS_THREADING_C)
- if( mbedtls_mutex_unlock( &mbedtls_threading_gmtime_mutex ) != 0 )
- return( NULL );
- #endif
- return( ( lt == NULL ) ? NULL : tm_buf );
- #endif
- }
- #endif
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