T_ADDR_ACK(D7tpi)

T_ADDR_ACK -- Protocol Address Acknowledgment

Synopsis

This message consists of one M_PCPROTO message block formatted as follows:

   struct T_addr_ack {
   	long PRIM_type;		/* always T_ADDR_ACK */
   	long LOCADDR_length;	/* length of local addr */
   	long LOCADDR_offset;	/* offset of local addr */
   	long REMADDR_length;	/* length of remote addr */
   	long REMADDR_offset;	/* offset of remote addr */
   };

Description

This primitive indicates to the transport user the local and remote protocol addresses currently associated with the transport endpoint.

Parameters

The fields of this message have the following meanings:

PRIM_type: This indicates the primitive type.
LOCADDR_length: The length of the local address associated with the transport endpoint.
LOCADDR_offset: The offset from the beginning of the M_PCPROTO message block where the local address begins.
REMADDR_length: The length of the remote address associated with the transport endpoint.
REMADDR_offset: The offset from the beginning of the M_PCPROTO message block where the remote address begins.

The proper alignment of the addresses in the M_PCPROTO message block is not guaranteed.

Rules

If the transport endpoint is in the T_UNBND state, the LOCADDR_length field is set to 0.

If the transport endpoint is in the T_DATAXFER state, the REMADDR_length field is set to 0.

Modes

Both connection-mode and connectionless-mode.

Originator

Transport provider.

Notices

Hardware constraints

None

Applicability

N/A

Backward compatibility

UnixWare-specific TPI Message Formats

Forward compatibility

N/A