ssl_write_server_key_exchange refactor: remove dig_signed_len

Simplify the redundant varaible dig_signed_len away.

This is in preparation for splitting ssl_write_server_key_exchange
into several functions.
This commit is contained in:
Gilles Peskine 2018-01-06 01:34:21 +01:00
parent 3665f1db9d
commit 3ce9b900d2

View file

@ -2836,8 +2836,7 @@ static int ssl_write_server_key_exchange( mbedtls_ssl_context *ssl )
#if defined(MBEDTLS_KEY_EXCHANGE__SOME_PFS__ENABLED)
size_t len;
#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
unsigned char *dig_signed = p;
size_t dig_signed_len = 0;
unsigned char *dig_signed = NULL;
#endif /* MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED */
#endif /* MBEDTLS_KEY_EXCHANGE__SOME_PFS__ENABLED */
@ -2961,7 +2960,6 @@ static int ssl_write_server_key_exchange( mbedtls_ssl_context *ssl )
#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
dig_signed = p;
dig_signed_len = len;
#endif
p += len;
@ -3022,8 +3020,7 @@ curve_matching_done:
}
#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
dig_signed = p;
dig_signed_len = len;
dig_signed = p;
#endif
p += len;
@ -3041,6 +3038,7 @@ curve_matching_done:
#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
if( mbedtls_ssl_ciphersuite_uses_server_signature( ciphersuite_info ) )
{
size_t dig_signed_len = p - dig_signed;
size_t signature_len = 0;
unsigned int hashlen = 0;
unsigned char hash[MBEDTLS_MD_MAX_SIZE];