Copyright (c) 1983 Regents of the University of California.
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@(#)getpeername.2 6.2 (Berkeley) 05/13/86

C 5 getpeername - get name of connected peer

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

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. A 0 is returned if the call succeeds, -1 if it fails. The call succeeds unless:

15 [EBADF] The argument s is not a valid descriptor.

15 [ENOTSOCK] The argument s is a file, not a socket.

15 [ENOTCONN] The socket is not connected.

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

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

accept(2), bind(2), socket(2), getsockname(2)