NAME

getpeername – get name of connected peer

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 int pointed to by 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

If successful, getpeername() returns 0; otherwise it returns -1 and sets errno to indicate the error.

ERRORS

This function is a member of Unison’s IOLIB family of functions. IOLIB is implemented as a message passing and generalized interface layer. Each Unison I/O server is responsible for its own error reporting.

For an exact list of error codes returned by a particular server, refer to that server’s documentation in the Unison Programmer’s Guide for each specific platform.

Servers may implement these errors codes in response to this function.

The call succeeds unless:

EBADF

The argument s is not a valid descriptor.

ENOMEM

There was insufficient user memory for the operation to complete.

ENOSR

There were insufficient resources available for the operation to complete.

ENOTCONN

The socket is not connected.

ENOTSOCK

The argument s is not a socket.

SEE ALSO

accept(), bind(), getsockname(), socket()