getpeername(2) System Calls Manual getpeername(2)
Name
getpeername - get name of connected peer
Syntax
#include <sys/types.h>
#include <sys/socket.h>
getpeername(s, name, namelen)
int s;
struct sockaddr *name;
int *namelen;
Description
The 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, in bytes, of the name returned.
Return Values
A zero is returned if the call succeeds, and -1 is returned if it fails.
Restrictions
Names bound to sockets in the UNIX domain are inaccessible; returns a zero length name.
Diagnostics
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 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.
See Also
bind(2), getsockname(2), socket(2)
getpeername(2)
