NAME

dat_cr_query - provide parameters of the Connection Request

SYNOPSIS

cc [ flag... ] file... -ldat [ library... ]
#include <dat/udat.h>
DAT_RETURN


    dat_cr_query (


    IN    DAT_CR_HANDLE        cr_handle,


    IN    DAT_CR_PARAM_MASK    cr_param_mask,


    OUT   DAT_CR_PARAM         *cr_param


    )

PARAMETERS

cr_handle

Handle for an instance of a Connection Request.

cr_param_mask

Mask for Connection Request parameters.

cr_param

Pointer to a Consumer-allocated structure that the Provider fills for Consumer-requested parameters.

DESCRIPTION

The dat_cr_query() function provides to the Consumer parameters of the Connection Request. The Consumer passes in a pointer to the Consumer-allocated structures for Connection Request parameters that the Provider fills.

The cr_param_mask parameter allows Consumers to specify which parameters to query. The Provider returns values for cr_param_mask requested parameters. The Provider can return values for any other parameters.

RETURN VALUES

DAT_SUCCESS

The operation was successful

DAT_INVALID_HANDLE

The cr_handle handle is invalid.

DAT_INVALID_PARAMETER

The cr_param_mask parameter is invalid.

USAGE

The Consumer uses dat_cr_query() to get information about requesting a remote Endpoint as well as a local Endpoint if it was allocated by the Provider for the arrived Connection Request. The local Endpoint is created if the Consumer used PSP with DAT_PSP_PROVIDER as the value for psp_flags. For the remote Endpoint, dat_cr_query() provides remote_ia_address and remote_port_qual. It also provides remote peer private_data and its size.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Interface Stability	Standard: uDAPL, 1.1, 1.2
MT-Level	Safe