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RedHat 9 (Linux i386) - man page for getpeername (redhat section 2)

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 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.

       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)


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