NAME
getpeername —
get name of connected peer
LIBRARY
library “libc”
SYNOPSIS
#include
<sys/types.h>
#include <sys/socket.h>
int
getpeername(int
s, struct sockaddr
*name, socklen_t
*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 VALUES
The getpeername() function returns the
value 0 if successful; otherwise the value -1 is returned and
the global variable errno is set to indicate the
error.
ERRORS
The call succeeds unless:
- [
EBADF] - The argument s is not a valid descriptor.
- [
ECONNRESET] - The connection has been reset by the peer.
- [
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
HISTORY
The getpeername() function call appeared
in 4.2BSD.