/*
 * Copyright (c) 1997, 1998, 1999, 2000, 2001, 2004, 2008, 2009, 2010, 2011,
 *               2012, 2013
 *      Inferno Nettverk A/S, Norway.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. The above copyright notice, this list of conditions and the following
 *    disclaimer must appear in all copies of the software, derivative works
 *    or modified versions, and any portions thereof, aswell as in all
 *    supporting documentation.
 * 2. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by
 *      Inferno Nettverk A/S, Norway.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Inferno Nettverk A/S requests users of this software to return to
 *
 *  Software Distribution Coordinator  or  sdc@inet.no
 *  Inferno Nettverk A/S
 *  Oslo Research Park
 *  Gaustadalléen 21
 *  NO-0349 Oslo
 *  Norway
 *
 * any improvements or extensions that they make and grant Inferno Nettverk A/S
 * the rights to redistribute these changes.
 *
 */

#include "common.h"

static const char rcsid[] =
"$Id: Rgetpeername.c,v 1.58 2013/10/27 15:24:42 karls Exp $";

int
Rgetpeername(s, name, namelen)
   int s;
   struct sockaddr *name;
   socklen_t *namelen;
{
   const char *function = "Rgetpeername()";
   socksfd_t socksfd;
   struct sockaddr_storage addr;

   clientinit();

   slog(LOG_DEBUG, "%s, fd %d", function, s);

   if (!socks_addrisours(s, &socksfd, 1)) {
      socks_rmaddr(s, 1);
      return getpeername(s, name, namelen);
   }

   switch (socksfd.state.command) {
      case SOCKS_BIND:
         fakesockshost2sockaddr(&socksfd.forus.accepted, &addr);
         break;

      case SOCKS_CONNECT:
         if (socksfd.state.err != 0) {
            errno = ENOTCONN;
            return -1;
         }

         fakesockshost2sockaddr(&socksfd.forus.connected, &addr);
         break;

      case SOCKS_UDPASSOCIATE:
         if (!socksfd.state.udpconnect) {
            errno = ENOTCONN;
            return -1;
         }

         fakesockshost2sockaddr(&socksfd.forus.connected, &addr);
         break;

      default:
         SERRX(socksfd.state.command);
   }

   *namelen = MIN(*namelen, salen(addr.ss_family));
   sockaddrcpy(TOSS(name), &addr, (size_t)*namelen);

   return 0;
}