Add Character byte reading macros
These cast to an unsigned char rather than a uint8_t
like with MBEDTLS_BYTE_x
These save alot of space and will improve maintence by
replacing the appropriate code with MBEDTLS_CHAR_x
Signed-off-by: Joe Subbiani <joe.subbiani@arm.com>
diff --git a/library/ccm.c b/library/ccm.c
index 424ee77..95d90dc 100644
--- a/library/ccm.c
+++ b/library/ccm.c
@@ -200,7 +200,7 @@
memcpy( b + 1, iv, iv_len );
for( i = 0, len_left = length; i < q; i++, len_left >>= 8 )
- b[15-i] = (unsigned char)( len_left & 0xFF );
+ b[15-i] = MBEDTLS_CHAR_0( len_left );
if( len_left > 0 )
return( MBEDTLS_ERR_CCM_BAD_INPUT );
@@ -221,8 +221,8 @@
src = add;
memset( b, 0, 16 );
- b[0] = (unsigned char)( ( add_len >> 8 ) & 0xFF );
- b[1] = (unsigned char)( ( add_len ) & 0xFF );
+ b[0] = MBEDTLS_CHAR_1( add_len );
+ b[1] = MBEDTLS_CHAR_0( add_len );
use_len = len_left < 16 - 2 ? len_left : 16 - 2;
memcpy( b + 2, src, use_len );