getpeername(2) [redhat 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)

Check Out this Related Man Page

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

Linux and UNIX Man Pages

getpeername(2) [redhat man page]

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