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Check retval of remaining_payload_in_datagram in ssl_write_record()

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This commit is contained in:
Hanno Becker 2018-08-21 13:31:31 +01:00
parent ecff205548
commit 1f5a15d86d
1 changed files with 10 additions and 1 deletions
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11
library/ssl_tls.c
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@ -3383,7 +3383,16 @@ int mbedtls_ssl_write_record( mbedtls_ssl_context *ssl, uint8_t force_flush )
#if defined(MBEDTLS_SSL_PROTO_DTLS) #if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{ {
size_t remaining = ssl_get_remaining_payload_in_datagram( ssl ); size_t remaining;
ret = ssl_get_remaining_payload_in_datagram( ssl );
if( ret < 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_get_remaining_payload_in_datagram",
ret );
return( ret );
}
remaining = (size_t) ret;
if( remaining == 0 ) if( remaining == 0 )
flush = SSL_FORCE_FLUSH; flush = SSL_FORCE_FLUSH;
else else