Re: cryptPopData returning 0 bytes

Sometimes this happens, sometimes it waits for the server to send the
message.
But, when he waits he is receiving a different data then the one
transmitted, Haven't done extensive debugging yet but, so far, seems that
the code is correct. I can stop on the server sending the package X and in
the client receiving Y.

Jacques


JexMcByte wrote:
> 
> I have two prog comunicating using a SLL channel.
> 
> The server enters the waiting state and, as soon as the client flushes the
> data it starts running again.
> It pops the data, do some work and the pushes and flushed the data.
> 
> Just after the client flushes the data it does a popdata to wait for the
> server answer butt the return without error and with 0 bytes read before
> the server has the chance to push the answer.
> 
> I've tryed seting CRYPT_OPTION_NET_READTIMEOUT but the behavior remained
> unchanged.
> 
> Am I missing something ?
> 
> server "code"
> 
> 
> 	res = cryptCreateSession( &cryptSession, CRYPT_UNUSED,
> CRYPT_SESSION_SSL_SERVER );
> 	/* Add the server key/certificate and activate the session */
> 	res = cryptSetAttribute( cryptSession, CRYPT_SESSINFO_PRIVATEKEY, privKey
> );
> 	res = cryptSetAttribute( cryptSession, CRYPT_SESSINFO_SERVER_PORT,
> thisPtr->port );
> 
> 	res = cryptSetAttribute( cryptSession, CRYPT_SESSINFO_ACTIVE, 1 );
> 
> 	// some work
> 
> 	res  = cryptPushData( cryptSession, &buf, sizeof(buf), &bytesCopied );
> 	res = cryptFlushData( cryptSession );
> 
> 	res = cryptDestroySession( cryptSession );
> 
> client "code"
> 
> 
> 	int res = cryptCreateSession( &cryptSession, CRYPT_UNUSED,
> CRYPT_SESSION_SSL );
> 	res = cryptSetAttribute( cryptSession, CRYPT_OPTION_NET_READTIMEOUT, 30
> );
> 	res = cryptSetAttributeString( cryptSession, CRYPT_SESSINFO_SERVER_NAME,
> serverAddress, strlen(data->serverAddress) );
> 	res = cryptSetAttribute( cryptSession, CRYPT_SESSINFO_SERVER_PORT, port
> );
> 	res = cryptSetAttribute( cryptSession, CRYPT_SESSINFO_ACTIVE, 1 );
> 	res = cryptPushData( cryptSession, &buf, sizeof(buf), &bytesCopied );
> 	res = cryptFlushData(  cryptSession );
> 	res = cryptPopData( cryptSession, &answer, sizeof(answer), &bytesCopied
> ); // this returns OK but with bytesCopied with 0
> 	res = cryptDestroySession( cryptSession );
> 
> Thanks in advance,
> Jacques
> 

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