source: roaraudio/roard/network.c @ 6052:d48765b2475e

//network.c:

/*
 *      Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2015
 *
 *  This file is part of roard a part of RoarAudio,
 *  a cross-platform sound system for both, home and professional use.
 *  See README for details.
 *
 *  This file is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 3
 *  as published by the Free Software Foundation.
 *
 *  RoarAudio 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this software; see the file COPYING.  If not, write to
 *  the Free Software Foundation, 51 Franklin Street, Fifth Floor,
 *  Boston, MA 02110-1301, USA.
 *
 */

#include "roard.h"

#ifdef ROAR_SUPPORT_LISTEN

#ifdef ROAR_BROKEN_PEERCRED
#undef SO_PEERCRED
#endif

#ifdef ROAR_HAVE_SELECT
#define _CAN_OPERATE
#endif

int net_check_listen  (void) {
 struct roar_vio_selecttv rtv;
 struct roar_vio_select   sv[ROAR_MAX_LISTEN_SOCKETS];
 size_t num = 0;
 ssize_t ret;
 size_t i;

 for (i = 0; i < ROAR_MAX_LISTEN_SOCKETS; i++) {
  if ( g_listen[i].used ) {
   ROAR_VIO_SELECT_SETVIO(&(sv[num]), &(g_listen[i].sock), ROAR_VIO_SELECT_READ);
   sv[num].ud.si = i;
   num++;
  }
 }

 if ( num == 0 )
  return 0;

 rtv.sec  = 0;
 rtv.nsec = 1000;

 if ( (ret = roar_vio_select(sv, num, &rtv, NULL)) > 0 ) {
  for (i = 0; i < num; i++) {
   if ( sv[i].eventsa & ROAR_VIO_SELECT_READ ) {
    if ( net_get_new_client(&(g_listen[sv[i].ud.si])) == -1 )
     return -1;
   }
  }
 }

 return ret;
}

int net_get_new_client (struct roard_listen * lsock) {
 int fh;
 int socket;
 struct roar_vio_calls    vio;
 struct sockaddr_storage  addr;
 socklen_t                addrlen = sizeof(addr);

 if ( roar_vio_ctl(&(lsock->sock), ROAR_VIO_CTL_GET_FH, &socket) == -1 ) {
  // next is needed for winsock:
  if ( roar_vio_ctl(&(lsock->sock), ROAR_VIO_CTL_GET_SELECT_FH, &socket) == -1 ) {
   ROAR_DBG("net_get_new_client(void) = -1 // can not find any acceptable socket to accept() on");
   return -1;
  }
 }

 fh = accept(socket, (struct sockaddr*)&addr, &addrlen);

 ROAR_DBG("net_get_new_client(void): fh = %i", fh);

 if ( fh == -1 )
  return -1;

 if ( clients_new_from_fh2(fh, lsock->proto, ROAR_BYTEORDER_NETWORK, 1, lsock, (struct sockaddr*)&addr, addrlen) == -1 ) {
  if ( roar_vio_open_fh_socket(&vio, fh) == -1 ) {
   close(fh);
   return -1;
  }
  roar_vio_close(&vio);
  return -1;
 }

 return 0;
}

#endif

//ll