getpeername(2) get name of connected peer

LIBRARY

Lb libc

SYNOPSIS

In sys/types.h In sys/socket.h Ft int Fn getpeername int s struct sockaddr * restrict name socklen_t * restrict namelen

DESCRIPTION

The Fn getpeername system call returns the name of the peer connected to socket Fa s . The Fa namelen argument should be initialized to indicate the amount of space pointed to by Fa 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

Rv -std getpeername

ERRORS

The call succeeds unless:

Bq Er EBADF
The argument Fa s is not a valid descriptor.
Bq Er ECONNRESET
The connection has been reset by the peer.
Bq Er EINVAL
The value of the Fa namelen argument is not valid.
Bq Er ENOTSOCK
The argument Fa s is a file, not a socket.
Bq Er ENOTCONN
The socket is not connected.
Bq Er ENOBUFS
Insufficient resources were available in the system to perform the operation.
Bq Er EFAULT
The Fa name argument points to memory not in a valid part of the process address space.

HISTORY

The Fn getpeername system call appeared in BSD 4.2