Unmapped Named External Input Parameter (Exit Point 3)

Allows you to handle an unmapped named external input parameter that has been specified in the client request.
Restriction: This topic applies only when the Enterprise Server feature is enabled.

Syntax:

typedef cblt_rtncode (*PFI_IDP_EXIT)(mf_uns32      exit_point,
                                     IDP_EXIT_INFO *exit_info);

On Entry:

exit point
3 = Unmapped named external input parameter
exit_info
version
Version of structure format
flags
0
ext_value_size
Size of data addressed by ext_value
funcs
User exit support functions
ext_param_name
Name of external parameter
ext_value
External data value associated with field_name
request_cxt
version Version of structure format
argc Parameter count of loaded service
service_type Type of client request
flags Request context control flags
argv Parameter list of loaded service
service_name Name of loaded service
pgm_name Name of the main program associated with the service
epoint_name Name of the entry point to invoke
exit_data
User exit-specific data

On Exit:

exit_info
flags
0
request_cxt
accept_buf_len Length of data in accept_buf
cmd_line _len Length of data in cmd_line
flags Request context control flags
accept_buf Data to be used for ANSI ACCEPT statements
cmd_line String to be used to resolve ACCEPT FROM COMMAND-LINE statements
exit_data
User exit-specific data

Return codes:

IDP_EXIT_CONTINUE
0 = Continue with processing
IDP_EXIT_STOP
1 = Terminate mapping processing. No service will be invoked. An error response will be required
IDP_EXIT_HANDLED
2 = The exit has overridden one or more of the returned request context fields

Comments:

This exit gives you the opportunity to handle an unmapped named external input parameter that has been specified in the client request. The exit program would typically handle the parameter by setting an appropriate value in one or more of the data areas addressed by argv, setting up data to be used for ANSI ACCEPT statements (accept_buf), or setting up the application’s command line (cmd_line). The exit should use the fn_alloc_mem support function of the exit_info funcs structure to allocate any memory used for the setting up of accept_buf or cmd_line. If the exit chooses to override any of the request context fields, it must return IDP_EXIT_HANDLED.

The user exit program owns the exit_data field of the IDP_EXIT_INFO structure. You would typically use it to preserve context information between exit point invocations. You can use it when returning any of the IDP_EXIT_ return values.