source: roaraudio/libroar/vio_socket.c @ 1333:640960dc1a0d

//vio_socket.c:

/*
 *      Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2009
 *
 *  This file is part of libroar 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.
 *
 *  libroar 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, 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *  NOTE for everyone want's to change something and send patches:
 *  read README and HACKING! There a addition information on
 *  the license of this document you need to read before you send
 *  any patches.
 *
 *  NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc
 *  or libpulse*:
 *  The libs libroaresd, libroararts and libroarpulse link this lib
 *  and are therefore GPL. Because of this it may be illigal to use
 *  them with any software that uses libesd, libartsc or libpulse*.
 */

#include "libroar.h"

int     roar_vio_open_def_socket          (struct roar_vio_calls * calls, struct roar_vio_defaults * def) {
 int       fh  = -1;
 socklen_t len =  0;

 if ( calls == NULL || def == NULL )
  return -1;

 if ( def->type != ROAR_VIO_DEF_TYPE_SOCKET )
  return -1;

 switch (def->d.socket.domain) {
  case AF_INET:
    len = sizeof(struct sockaddr_in);

    switch (def->d.socket.type) {
     case SOCK_STREAM:
       fh = roar_socket_new_tcp();
      break;
     case SOCK_DGRAM:
       fh = roar_socket_new_udp();
      break;
     default:
       return -1;
    }
   break;
#ifdef ROAR_HAVE_UNIX
  case AF_UNIX:
    len = sizeof(struct sockaddr_un);

    switch (def->d.socket.type) {
     case SOCK_STREAM:
       fh = roar_socket_new_unix();
      break;
     case SOCK_DGRAM:
       return -1;
      break;
     default:
       return -1;
    }
   break;
#endif
#ifdef ROAR_HAVE_LIBDNET
  case AF_DECnet:
    len = sizeof(struct sockaddr_dn);

    return -1;
   break;
#endif
#ifdef ROAR_HAVE_IPV6
  case AF_INET6:
    len = sizeof(struct sockaddr_in6);

    switch (def->d.socket.type) {
     case SOCK_STREAM:
       fh = roar_socket_new_tcp6();
      break;
     case SOCK_DGRAM:
       fh = roar_socket_new_udp6();
      break;
     default:
       return -1;
    }
   break;
#endif
#ifdef ROAR_HAVE_IPX
  case AF_IPX:
    len = sizeof(struct sockaddr_ipx);

    return -1;
   break;
#endif
  default:
    return -1;
 }

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

 if ( connect(fh, &(def->d.socket.sa.sa), len) == -1 ) {
  close(fh);
  return -1;
 }

 if ( roar_vio_open_fh_socket(calls, fh) == -1 ) {
  close(fh);
  return -1;
 }

 return 0;
}

int     roar_vio_socket_init_socket_def   (struct roar_vio_defaults * def, int domain, int type) {
 if ( def == NULL || domain == -1 || type == -1 )
  return -1;

 // we do not memset(def, 0, sizeof(...)) here
 // because this is allready done in roar_vio_dstr_init_defaults()
 // if we would be would override o_flags/o_mode and maybe others

 memset(&(def->d.socket.sa), 0, sizeof(def->d.socket.sa));

 def->type                     = ROAR_VIO_DEF_TYPE_SOCKET;
 def->d.socket.domain          = domain;
 def->d.socket.type            = type;
 def->d.socket.sa.sa.sa_family = domain;

 return 0;
}

int     roar_vio_socket_init_unix_def     (struct roar_vio_defaults * def, char * path) {
 if ( roar_vio_socket_init_socket_def(def, AF_UNIX, SOCK_STREAM) == -1 )
  return -1;

 strncpy(def->d.socket.sa.un.sun_path, path, sizeof(def->d.socket.sa.un.sun_path) - 1);

 return 0;
}

int     roar_vio_socket_init_decnet_def   (struct roar_vio_defaults * def, char * node, int object, char * objname);

int     roar_vio_socket_init_inet4host_def(struct roar_vio_defaults * def, char * host) {
 struct hostent     * he;

 if ( def == NULL || host == NULL )
  return -1;

 if ( (he = gethostbyname(host)) == NULL ) {
  ROAR_ERR("roar_vio_socket_init_inet4host_def(*): Can\'t resolve host name '%s'",
                    host);
  return -1;
 }

 memcpy((struct in_addr *)&def->d.socket.sa.in.sin_addr, he->h_addr, sizeof(struct in_addr));

 return 0;
}

int     roar_vio_socket_init_tcp4_def     (struct roar_vio_defaults * def, char * host, int port) {
 if ( roar_vio_socket_init_socket_def(def, AF_INET, SOCK_STREAM) == -1 )
  return -1;

 if ( roar_vio_socket_init_inet4host_def(def, host) == -1 )
  return -1;

 def->d.socket.sa.in.sin_port   = ROAR_HOST2NET16(port);

 return 0;
}

int     roar_vio_socket_init_udp4_def     (struct roar_vio_defaults * def, char * host, int port);
int     roar_vio_socket_init_inet6host_def(struct roar_vio_defaults * def, char * host);
int     roar_vio_socket_init_tcp6_def     (struct roar_vio_defaults * def, char * host, int port);
int     roar_vio_socket_init_udp6_def     (struct roar_vio_defaults * def, char * host, int port);

//ll