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

getpeername - get name of connected peer

cc [ flag ... ] file ... -lsocket  -lnsl  [ library ... ]
#include <sys/types.h>
#include <sys/socket.h>
int getpeername(int s, struct sockaddr *name, socklen_t *namelen);

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.

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

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.

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

ATTRIBUTE TYPE ATTRIBUTE VALUE
MT-Level Safe

socket.h(3HEAD), accept(3SOCKET), bind(3SOCKET), getsockname(3SOCKET), sockaddr(3SOCKET), socket(3SOCKET), attributes(7)
March 26, 1998 OmniOS