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Add Character byte reading macros

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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>
This commit is contained in:
Joe Subbiani
2021-07-08 14:59:52 +01:00
parent 6a50631497
commit cd84d76e9b
12 changed files with 328 additions and 330 deletions
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6
library/ccm.c
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@@ -200,7 +200,7 @@ static int ccm_auth_crypt( mbedtls_ccm_context *ctx, int mode, size_t length,
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 @@ static int ccm_auth_crypt( mbedtls_ccm_context *ctx, int mode, size_t length,
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 );