getpeername(2) [ultrix man page]

getpeername(2)							System Calls Manual						    getpeername(2)

Name
       getpeername - get name of connected peer

Syntax
       #include <sys/types.h>
       #include <sys/socket.h>

       getpeername(s, name, namelen)
       int s;
       struct sockaddr *name;
       int *namelen;

Description
       The  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, in bytes, of the name returned.

Return Values
       A zero is returned if the call succeeds, and -1 is returned if it fails.

Restrictions
       Names bound to sockets in the UNIX domain are inaccessible; returns a zero length name.

Diagnostics
       The call succeeds unless:

       [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.

See Also
       bind(2), getsockname(2), socket(2)

																    getpeername(2)

GETPEERNAME(2)						      BSD System Calls Manual						    GETPEERNAME(2)

NAME

     getpeername -- get name of connected peer

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <sys/types.h>
     #include <sys/socket.h>

     int
     getpeername(int s, struct sockaddr * restrict name, socklen_t * restrict namelen);

DESCRIPTION

     The getpeername() system call returns the name of the peer connected to socket s.	The namelen argument 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.

     [EINVAL]		The value of the namelen argument is not valid.

     [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 argument points to memory not in a valid part of the process address space.

SEE ALSO

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

HISTORY

     The getpeername() system call appeared in 4.2BSD.

BSD
								   June 4, 1993 							       BSD