GETPEERNAME(1) General Commands Manual GETPEERNAME(1)NAME
getpeername - get name of connected TCP/IP peer
SYNOPSIS
getpeername [-n] [-p protocol]
DESCRIPTION
getpeername prints the IP address and service name (port number) of the remote peer connected to standard input. The IP address and the
service name are printed on the same line, separated by one space.
OPTIONS -n Don't translate IP addresses and port numbers to names.
-p protocol
Force getpeername to use protocol as the protocol when translating port numbers to service names. Protocol can be tcp and udp.
Normally, getpeername automatically determines what type of socket it is connected to.
SEE ALSO getpeername(3).
BUGS
Only works on IP sockets.
1997 April 13 GETPEERNAME(1)
Check Out this Related Man Page
GETPEERNAME(2) Linux Programmer's Manual GETPEERNAME(2)NAME
getpeername - get name of connected peer socket
SYNOPSIS
#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 pro-
vided 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.
CONFORMING TO
SVr4, 4.4BSD (the getpeername function call first appeared in 4.2BSD).
NOTE
The third argument of getpeername is in reality an `int *' (and this is what BSD 4.* and libc4 and libc5 have). Some POSIX confusion
resulted in the present socklen_t. The draft standard has not been adopted yet, but glibc2 already follows it and also has socklen_t. See
also accept(2).
SEE ALSO accept(2), bind(2), getsockname(2)BSD Man Page 1993-07-30 GETPEERNAME(2)