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Use distinct variables for distinct purposes

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Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
This commit is contained in:
Manuel Pégourié-Gonnard 2021-07-07 10:48:26 +02:00
parent 40e26b2600
commit 87e8b5ccaa
1 changed files with 10 additions and 15 deletions
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25
programs/ssl/ssl_test_common_source.c
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@ -163,7 +163,7 @@ int dtls_srtp_key_derivation( void *p_expkey,
int ssl_check_record( mbedtls_ssl_context const *ssl,
unsigned char const *buf, size_t len )
{
int ret;
int my_ret = 0, ret_cr1, ret_cr2;
unsigned char *tmp_buf;
/* Record checking may modify the input buffer,
@ -173,23 +173,21 @@ int ssl_check_record( mbedtls_ssl_context const *ssl,
return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
memcpy( tmp_buf, buf, len );
ret = mbedtls_ssl_check_record( ssl, tmp_buf, len );
if( ret != MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE )
ret_cr1 = mbedtls_ssl_check_record( ssl, tmp_buf, len );
if( ret_cr1 != MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE )
{
int ret_repeated;
/* Test-only: Make sure that mbedtls_ssl_check_record()
* doesn't alter state. */
memcpy( tmp_buf, buf, len ); /* Restore buffer */
ret_repeated = mbedtls_ssl_check_record( ssl, tmp_buf, len );
if( ret != ret_repeated )
ret_cr2 = mbedtls_ssl_check_record( ssl, tmp_buf, len );
if( ret_cr2 != ret_cr1 )
{
mbedtls_printf( "mbedtls_ssl_check_record() returned inconsistent results.\n" );
ret = -1;
my_ret = -1;
goto cleanup;
}
switch( ret )
switch( ret_cr1 )
{
case 0:
break;
@ -197,24 +195,21 @@ int ssl_check_record( mbedtls_ssl_context const *ssl,
case MBEDTLS_ERR_SSL_INVALID_RECORD:
if( opt.debug_level > 1 )
mbedtls_printf( "mbedtls_ssl_check_record() detected invalid record.\n" );
ret = 0;
break;
case MBEDTLS_ERR_SSL_INVALID_MAC:
if( opt.debug_level > 1 )
mbedtls_printf( "mbedtls_ssl_check_record() detected unauthentic record.\n" );
ret = 0;
break;
case MBEDTLS_ERR_SSL_UNEXPECTED_RECORD:
if( opt.debug_level > 1 )
mbedtls_printf( "mbedtls_ssl_check_record() detected unexpected record.\n" );
ret = 0;
break;
default:
mbedtls_printf( "mbedtls_ssl_check_record() failed fatally with -%#04x.\n", (unsigned int) -ret );
ret = -1;
mbedtls_printf( "mbedtls_ssl_check_record() failed fatally with -%#04x.\n", (unsigned int) -ret_cr1 );
my_ret = -1;
goto cleanup;
}
@ -224,7 +219,7 @@ int ssl_check_record( mbedtls_ssl_context const *ssl,
cleanup:
mbedtls_free( tmp_buf );
return( ret );
return( my_ret );
}
#endif /* MBEDTLS_SSL_RECORD_CHECKING */