GETPEERNAME(3SOCKET) Sockets Library Functions GETPEERNAME(3SOCKET)

NAME

getpeername - get name of connected peer

SYNOPSIS

cc [ flag ... ] file ... -lsocket -lnsl [ library ... ]
#include <sys/types.h>
#include <sys/socket.h>

int getpeername(int s, struct sockaddr *name, socklen_t *namelen);

DESCRIPTION

getpeername() returns the name of the peer connected to socket s. The
int pointed to by the namelen parameter should be initialized to indicate
the amount of space pointed to by name. On return it contains the actual
size of the name returned (in bytes), prior to any truncation. The name
is truncated if the buffer provided is too small.

RETURN VALUES

If successful, getpeername() returns 0; otherwise it returns -1 and sets
errno to indicate the error.

ERRORS

The call succeeds unless:

EBADF
The argument s is not a valid descriptor.


ENOMEM
There was insufficient user memory for the operation to
complete.


ENOSR
There were insufficient STREAMS resources available for the
operation to complete.


ENOTCONN
The socket is not connected.


ENOTSOCK
The argument s is not a socket.

ATTRIBUTES

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


+---------------+-----------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-----------------+
|MT-Level | Safe |
+---------------+-----------------+

SEE ALSO

socket.h(3HEAD), accept(3SOCKET), bind(3SOCKET), getsockname(3SOCKET),
sockaddr(3SOCKET), socket(3SOCKET), attributes(7)

March 26, 1998 GETPEERNAME(3SOCKET)