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Manual Reference Pages  - GETPEERNAME (2)

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NAME

getpeername - get name of connected peer socket

CONTENTS

Synopsis
Description
Errors
Note

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 provided 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.
EFAULT	The name parameter points to memory not in a valid part of the process address space.
EINVAL	namelen is invalid (e.g., is negative).
ENOBUFS
	Insufficient resources were available in the system to perform the operation.
ENOTCONN
	The socket is not connected.
ENOTSOCK
	The argument s is a file, not a socket.

CONFORMING TO

SVr4, 4.4BSD (the getpeername() function call first appeared in 4.2BSD), POSIX.1-2001.

NOTE

The third argument of getpeername() is in reality an int * (and this is what 4.x BSD and libc4 and libc5 have). Some POSIX confusion resulted in the present socklen_t, also used by glibc. See also accept(2).

SEE ALSO

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

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BSD Man Page

GETPEERNAME (2)

1993-07-30

Generated by OpenAsthra.com from man2/getpeername.2 using man macros.