DAT_CR_QUERY(3DAT) Direct Access Transport Library Functions DAT_CR_QUERY(3DAT)

dat_cr_query - provide parameters of the Connection Request

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

dat_cr_query (
IN DAT_CR_HANDLE cr_handle,
IN DAT_CR_PARAM_MASK cr_param_mask,
OUT DAT_CR_PARAM *cr_param


Handle for an instance of a Connection Request.


Mask for Connection Request parameters.


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

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.


The operation was successful


The cr_handle handle is invalid.


The cr_param_mask parameter is invalid.

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.

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

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

libdat(3LIB), attributes(7)

July 16, 2004 OmniOS