mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 07:20:11 +00:00
71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
/* Copyright (C) 1992,1994,1997,1999,2000,2005 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <hurd.h>
|
|
#include <hurd/fd.h>
|
|
#include <hurd/socket.h>
|
|
|
|
/* Put the address of the peer connected to socket FD into *ADDR
|
|
(which is *LEN bytes long), and its actual length into *LEN. */
|
|
int
|
|
__getpeername (int fd, __SOCKADDR_ARG addrarg, socklen_t *len)
|
|
{
|
|
error_t err;
|
|
mach_msg_type_number_t buflen = *len;
|
|
int type;
|
|
struct sockaddr *addr = addrarg.__sockaddr__;
|
|
char *buf = (char *) addr;
|
|
addr_port_t aport;
|
|
|
|
if (err = HURD_DPORT_USE (fd, __socket_peername (port, &aport)))
|
|
return __hurd_dfail (fd, err);
|
|
|
|
err = __socket_whatis_address (aport, &type, &buf, &buflen);
|
|
__mach_port_deallocate (__mach_task_self (), aport);
|
|
|
|
if (err)
|
|
return __hurd_dfail (fd, err);
|
|
|
|
if (*len > buflen)
|
|
*len = buflen;
|
|
|
|
if (buf != (char *) addr)
|
|
{
|
|
memcpy (addr, buf, *len);
|
|
__vm_deallocate (__mach_task_self (), (vm_address_t) buf, buflen);
|
|
}
|
|
|
|
const sa_family_t family = type;
|
|
if (*len > offsetof (struct sockaddr, sa_family))
|
|
{
|
|
if (*len < (char *) (&addr->sa_family + 1) - (char *) addr)
|
|
memcpy (&addr->sa_family, &family,
|
|
*len - offsetof (struct sockaddr, sa_family));
|
|
else
|
|
addr->sa_family = family;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
weak_alias (__getpeername, getpeername)
|