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Align with check-like function return value convention

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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 32b629dc99
commit 9581fa3050
1 changed files with 3 additions and 3 deletions
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6
include/mbedtls/ssl_internal.h
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@ -250,13 +250,13 @@
* \param end Pointer to one past the end of the buffer. * \param end Pointer to one past the end of the buffer.
* \param need Needed space in bytes. * \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. * otherwise.
*/ */
static inline int mbedtls_ssl_chk_buf_ptr( const uint8_t *cur, static inline int mbedtls_ssl_chk_buf_ptr( const uint8_t *cur,
const uint8_t *end, size_t need ) const uint8_t *end, size_t need )
{ {
return( cur <= end && need <= (size_t)( end - cur ) ); return( ( cur > end ) || ( need > (size_t)( end - cur ) ) );
} }
/** /**
@ -271,7 +271,7 @@ static inline int mbedtls_ssl_chk_buf_ptr( const uint8_t *cur,
*/ */
#define MBEDTLS_SSL_CHK_BUF_PTR( cur, end, need ) \ #define MBEDTLS_SSL_CHK_BUF_PTR( cur, end, need ) \
do { \ 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 ); \ return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); \
} \ } \