GETPEERNAME(2)

NAME
getpeername - get name of connected peer

SYNOPSIS
#include <sys/socket.h>

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

DESCRIPTION
Getpeername returns the name of the peer connected to socket s. 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). The name is truncated if the buffer provided is too small.

RETURN VALUE
On success, zero is returned. On error, -1 is returned, and errno is set appropriately.

ERRORS

EBADF
    The argument s is not a valid descriptor.

ENOTSOCK
    The argument s is a file, not a socket.

ENOTCONN
    The socket is not connected.

ENOBUFS
    Insufficient resources were available in the system to perform the operation.

EFAULT
    The name parameter points to memory not in a valid part of the process address space.

HISTORY
The getpeername function call appeared in BSD 4.2.

SEE ALSO
accept(2), bind(2), getsockname(2)