CSADDR_INFO
The CSADDR_INFO
structure contains Windows Sockets address information for a network service or
name space provider. The GetAddressByName function obtains Windows Sockets address
information using CSADDR_INFO structures.
typedef struct _CSADDR_INFO {
SOCKET_ADDRESS LocalAddr;
SOCKET_ADDRESS RemoteAddr;
INT iSocketType;
INT iProtocol;
} CSADDR_INFO;
Members
LocalAddr
Specifies a
Windows Sockets local address.
In a client application,
pass this address to the bind
function to obtain access to a network service.
In a network
service, pass this address to the bind function so that the service is
bound to the appropriate local address.
RemoteAddr
Specifies a
Windows Sockets remote address. There are several uses for this remote address:
You can use this remote address to connect to
the service via the connect
function. This is useful if an application performs send/receive operations that involve
connection-oriented protocols.
You can use this remote address with the sendto function when you are
communicating over a connectionless (datagram) protocol. If you are using a
connectionless protocol, such as UDP, sendto is typically the way you
pass data to the remote system.
iSocketType
Specifies the
type of the Windows socket. The following socket types are defined in
WINSOCK.H:
|
Value |
Socket
Type |
|
SOCK_STREAM |
Stream.This
is a protocol that sends data as a stream of bytes, with no message
boundaries. |
|
SOCK_DGRAM |
Datagram.
This is a connectionless protocol. There is no virtual circuit setup. There
are typically no reliability guarantees. Services use recvfrom to
obtain datagrams. The listen and accept functions do not work
with datagrams. |
|
SOCK_RDM |
Reliably-Delivered
Message. This is a protocol that preserves message boundaries in data. |
|
SOCK_SEQPACKET |
Sequenced
packet stream. This is a protocol that is essentially the same as SOCK_RDM. |
iProtocol
Specifies a
value to pass as the protocol parameter to the socket function to open a
socket for this service.
See Also