Align with check-like function return value convention

By convention, in the project, functions that have a
check or similar in the name return 0 if the check
succeeds, non-zero otherwise. Align with this for
mbedtls_ssl_chk_buf_ptr().

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This commit is contained in:
Ronald Cron 2020-06-11 09:50:51 +02:00
parent 904775da12
commit 4206bd4a4f

View file

@ -198,13 +198,13 @@
* \param end Pointer to one past the end of the buffer.
* \param need Needed space in bytes.
*
* \return Non-zero if the needed space is available in the buffer, 0
* \return Zero if the needed space is available in the buffer, non-zero
* otherwise.
*/
static inline int mbedtls_ssl_chk_buf_ptr( const uint8_t *cur,
const uint8_t *end, size_t need )
{
return( cur <= end && need <= (size_t)( end - cur ) );
return( ( cur > end ) || ( need > (size_t)( end - cur ) ) );
}
/**
@ -219,7 +219,7 @@ static inline int mbedtls_ssl_chk_buf_ptr( const uint8_t *cur,
*/
#define MBEDTLS_SSL_CHK_BUF_PTR( cur, end, need ) \
do { \
if( mbedtls_ssl_chk_buf_ptr( ( cur ), ( end ), ( need ) ) == 0 ) \
if( mbedtls_ssl_chk_buf_ptr( ( cur ), ( end ), ( need ) ) != 0 ) \
{ \
return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); \
} \