GETPEERNAME(2)
NAME
getpeername − get name of connected peer
USAGE
getpeername(s, name, namelen) 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 name points to. On return, it contains the actual size of the name returned (in bytes).
RETURN VALUE
A successful call returns zero. A failed call returns -1 and sets errno as indicated below.
ERRORS
The call succeeds unless:
[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 system resources were available.
[EFAULT] The name parameter points to memory that is not in a valid part of the process address space.