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)