MQZ_FIND_USERID - Find user identifier

This function is provided by a user ID service component, and is invoked by the queue manager to find the user ID, and optionally the password, to be associated with an application, when the application issues an  MQCONN  call.

The function identifier for this function (for  MQZEP ) is MQZID_FIND_USERID.

Syntax

Parameters

The  MQZ_FIND_USERID  call has the following parameters.

QMgrName (MQCHAR48) - input

Queue manager name.

The name of the queue manager calling the component. This name is padded with blanks to the full length of the parameter; the name is not terminated by a null character.

The queue-manager name is passed to the component for information; the user ID service interface does not require the component to make use of it in any defined manner.

UserId (MQCHAR12) - output

User identifier.

The user identifier to be associated with this application. The value returned by the service component must be padded on the right with blanks to the full length of the parameter; the value must not be terminated by a null character.

Password (MQCHAR12) - output

Password.

The password associated with the user identifier. The value returned by the service component must be padded on the right with blanks to the full length of the parameter; the value must not be terminated by a null character.

If it is not necessary to return a password, the parameter should be set to blanks.

ComponentData (MQBYTE×ComponentDataLength) - input/output

Component data.

This data is kept by the queue manager on behalf of this particular component; any changes made to it by any of the functions provided by this component are preserved, and presented the next time one of this component's functions is called.

The length of this data area is passed by the queue manager in the ComponentDataLength parameter of the  MQZ_INIT_USERID  call.

Continuation (MQLONG) - output

Continuation indicator set by component.

The following values can be specified:

MQZCI_DEFAULT

Continuation dependent on queue manager.

For  MQZ_FIND_USERID  this has the same effect as MQZCI_CONTINUE.

MQZCI_CONTINUE

Continue with next component.

MQZCI_STOP

Do not continue with next component.

CompCode (MQLONG) - output

Completion code.

It is one of the following:

MQCC_OK

Successful completion.

MQCC_FAILED

Call failed.

Reason (MQLONG) - output

Reason code qualifying CompCode.

If CompCode is MQCC_OK:

MQRC_NONE

(0, X'000') No reason to report.

If CompCode is MQCC_FAILED:

MQRC_SERVICE_ERROR

(2289, X'8F1') Unexpected error occurred accessing service.

MQRC_SERVICE_NOT_AVAILABLE

(2285, X'8ED') Underlying service not available.

MQRC_USER_ID_NOT_AVAILABLE

(2291, X'8F3') Unable to determine the user ID.

For more information on these reason codes, see the WebSphere MQ Application Programming Reference.

C invocation

MQZ_FIND_USERID (QMgrName, UserId, Password, ComponentData,
                &Continuation, &CompCode, &Reason);

The parameters passed to the service are declared as follows:

MQCHAR48  QMgrName;          /* Queue manager name */
MQCHAR12  UserId;            /* User identifier */
MQCHAR12  Password;          /* Password */
MQBYTE    ComponentData[n];  /* Component data */
MQLONG    Continuation;      /* Continuation indicator set by
                                component */
MQLONG    CompCode;          /* Completion code */
MQLONG    Reason;            /* Reason code qualifying CompCode */