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MQSeries.net Forum Index » IBM MQ API Support » C/C++ MQ Client Application SSL

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vaso
PostPosted: Tue Sep 14, 2021 2:06 am    Post subject: C/C++ MQ Client Application SSL Reply with quote

Newbie

Joined: 14 Sep 2021
Posts: 1

Hi,

I've written a client application in C++ which connects to a remote MQ server and reads data via a SSL connection. The C++ application works fine, but I'm trying to convert it to a C application, because I need to be able to assign a SSL certificate label via the application, and I understand that this is only available via the C API.

I'm trying to convert the amqssslc.c sample application to try to GET data from the remote queue (INPUT_AS_DEF), but the MQOPEN function call keeps failing with reason 2045 (MQRC_OPTION_NOT_VALID_FOR_TYPE - not valid option when trying to browse a non-local queue).

My question is whether it is possible to use the C API to connect and read data from a remote queue, and if yes are there any options I might be looking to change when initialising the connection via MQCONNX?

MQCONNX(QMName, /* queue manager */
&ConnectOptions, /* options for connection */
&Hcon, /* connection handle */
&CompCode, /* completion code */
&CReason); /* reason code

// This works fine and the client is connected to the remote server

od.ObjectType = MQOT_Q_MGR; /* open the queue manager object*/
O_options = MQOO_INPUT_AS_Q_DEF + MQOO_FAIL_IF_QUIESCING;

MQOPEN(Hcon, /* connection handle */
&od, /* object descriptor for queue */
O_options,
&Hobj, /* object handle */
&OpenCode, /* MQOPEN completion code */
&Reason);

// MQOPEN fails with code 2045

Thanks,
V
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bruce2359
PostPosted: Tue Sep 14, 2021 4:22 am    Post subject: Re: C/C++ MQ Client Application SSL mqrc 2045 Reply with quote

Poobah

Joined: 05 Jan 2008
Posts: 9394
Location: US: west coast, almost. Otherwise, enroute.

vaso wrote:
od.ObjectType = MQOT_Q_MGR; /* open the queue manager object*/
O_options = MQOO_INPUT_AS_Q_DEF + MQOO_FAIL_IF_QUIESCING;

MQOPEN(Hcon, /* connection handle */
&od, /* object descriptor for queue */
O_options,
&Hobj, /* object handle */
&OpenCode, /* MQOPEN completion code */
&Reason);

// MQOPEN fails with code 2045


A qmgr object is not a queue. _AS_Q_DEF is not compatible with a qmgr object type.

Ref: https://www.ibm.com/docs/en/ibm-mq/7.5?topic=calls-mqopen-open-object
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