src/arch/festival/client.cc

   1 /*************************************************************************/
   2 /*                                                                       */
   3 /*                Centre for Speech Technology Research                  */
   4 /*                     University of Edinburgh, UK                       */
   5 /*                       Copyright (c) 1996,1997                         */
   6 /*                        All Rights Reserved.                           */
   7 /*                                                                       */
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  10 /*  without limitation the rights to use, copy, modify, merge, publish,  */
  11 /*  distribute, sublicense, and/or sell copies of this work, and to      */
  12 /*  permit persons to whom this work is furnished to do so, subject to   */
  13 /*  the following conditions:                                            */
  14 /*   1. The code must retain the above copyright notice, this list of    */
  15 /*      conditions and the following disclaimer.                         */
  16 /*   2. Any modifications must be clearly marked as such.                */
  17 /*   3. Original authors' names are not deleted.                         */
  18 /*   4. The authors' names are not used to endorse or promote products   */
  19 /*      derived from this software without specific prior written        */
  20 /*      permission.                                                      */
  21 /*                                                                       */
  22 /*  THE UNIVERSITY OF EDINBURGH AND THE CONTRIBUTORS TO THIS WORK        */
  23 /*  DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING      */
  24 /*  ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT   */
  25 /*  SHALL THE UNIVERSITY OF EDINBURGH NOR THE CONTRIBUTORS BE LIABLE     */
  26 /*  FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES    */
  27 /*  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN   */
  28 /*  AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,          */
  29 /*  ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF       */
  30 /*  THIS SOFTWARE.                                                       */
  31 /*                                                                       */
  32 /*************************************************************************/
  33 /*                Author :  Alan Black (with Richard Tobin)              */
  34 /*                Date   :  December 1996                                */
  35 /*-----------------------------------------------------------------------*/
  36 /*                                                                       */
  37 /* Low level client functions, separated from the other scoket functions */
  38 /* so things that link with these don't need the whole system            */
  39 /*                                                                       */
  40 /*=======================================================================*/
  41 #include <cstdlib>
  42 #include <cstdio>
  43 #include <cerrno>
  44 #include <sys/types.h>
  45 #include <cstring>
  46 #include <ctime>
  47 #include "EST_unix.h"
  48 #include "EST_socket.h"
  49 #include "festival.h"
  50 #include "festivalP.h"
  51
  52 static EST_Regex ipnum("[0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+");
  53
  54 int festival_socket_client(const char *host,int port)
  55 {
  56     // Return an FD to a remote server
  57     struct sockaddr_in serv_addr;
  58     struct hostent *serverhost;
  59     EST_String shost;
  60     int fd;
  61
  62     if (!socket_initialise())
  63       {
  64         festival_error();
  65       }
  66     fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  67
  68     if (NOT_A_SOCKET(fd))
  69       {
  70         int n = socket_error();
  71         cerr << "socket: socket failed (" << n << ")\n";
  72         festival_error();
  73       }
  74     memset(&serv_addr, 0, sizeof(serv_addr));
  75     shost = host;
  76     if (shost.matches(ipnum))
  77         serv_addr.sin_addr.s_addr = inet_addr(host);
  78     else
  79     {
  80         serverhost = gethostbyname(host);
  81         if (serverhost == (struct hostent *)0)
  82         {
  83             cerr << "socket: gethostbyname failed" << endl;
  84             festival_error();
  85         }
  86         memmove(&serv_addr.sin_addr,serverhost->h_addr, serverhost->h_length);
  87     }
  88     serv_addr.sin_family = AF_INET;
  89     serv_addr.sin_port = htons(port);
  90
  91     if (connect(fd, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) != 0)
  92     {
  93         cerr << "socket: connect failed" << endl;
  94         festival_error();
  95     }
  96
  97     return fd;
  98 }
  99
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