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Exemplify ways of calling mbedtls_ssl_get_peer_cid() in ssl_client2

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This commit is contained in:
Hanno Becker 2019-05-22 16:59:25 +01:00
parent 615ef17b67
commit 6ae14c086d
1 changed files with 31 additions and 2 deletions
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33
programs/ssl/ssl_client2.c
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@ -784,9 +784,18 @@ int report_cid_usage( mbedtls_ssl_context *ssl,
if( opt.transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM )
return( 0 );
/* Check if the use of a CID has been negotiated */
/* Check if the use of a CID has been negotiated,
* but don't ask for the CID value and length.
*
* Note: Here and below, we're demonstrating the various ways
* in which mbedtls_ssl_get_peer_cid() can be called,
* depending on whether or not the length/value of the
* peer's CID is needed.
*
* An actual application, however, should use
* just one call to mbedtls_ssl_get_peer_cid(). */
ret = mbedtls_ssl_get_peer_cid( ssl, &cid_negotiated,
peer_cid, &peer_cid_len );
NULL, NULL );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ssl_get_peer_cid returned -0x%x\n\n",
@ -807,6 +816,26 @@ int report_cid_usage( mbedtls_ssl_context *ssl,
size_t idx=0;
mbedtls_printf( "(%s) Use of Connection ID has been negotiated.\n",
additional_description );
/* Ask for just the length of the peer's CID. */
ret = mbedtls_ssl_get_peer_cid( ssl, &cid_negotiated,
NULL, &peer_cid_len );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ssl_get_peer_cid returned -0x%x\n\n",
-ret );
return( ret );
}
/* Ask for just length + value of the peer's CID. */
ret = mbedtls_ssl_get_peer_cid( ssl, &cid_negotiated,
peer_cid, &peer_cid_len );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ssl_get_peer_cid returned -0x%x\n\n",
-ret );
return( ret );
}
mbedtls_printf( "(%s) Peer CID (length %u Bytes): ",
additional_description,
(unsigned) peer_cid_len );