modules/access/tcp.c

   1 /*****************************************************************************
   2  * tcp.c: TCP input module
   3  *****************************************************************************
   4  * Copyright (C) 2003-2004 VLC authors and VideoLAN
   5  *
   6  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU Lesser General Public License as published by
  10  * the Free Software Foundation; either version 2.1 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16  * GNU Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public License
  19  * along with this program; if not, write to the Free Software Foundation,
  20  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  21  *****************************************************************************/
  22
  23 #ifdef HAVE_CONFIG_H
  24 # include "config.h"
  25 #endif
  26
  27 #include <errno.h>
  28
  29 #include <vlc_common.h>
  30 #include <vlc_plugin.h>
  31 #include <vlc_access.h>
  32 #include <vlc_url.h>
  33 #include <vlc_tls.h>
  34
  35 static ssize_t Read(stream_t *access, void *buf, size_t len)
  36 {
  37     return vlc_tls_Read(access->p_sys, buf, len, false);
  38 }
  39
  40 static int Control( stream_t *p_access, int i_query, va_list args )
  41 {
  42     bool    *pb_bool;
  43
  44     switch( i_query )
  45     {
  46         case STREAM_CAN_SEEK:
  47         case STREAM_CAN_FASTSEEK:
  48             pb_bool = va_arg( args, bool * );
  49             *pb_bool = false;
  50             break;
  51         case STREAM_CAN_PAUSE:
  52             pb_bool = va_arg( args, bool * );
  53             *pb_bool = true;    /* FIXME */
  54             break;
  55         case STREAM_CAN_CONTROL_PACE:
  56             pb_bool = va_arg( args, bool * );
  57             *pb_bool = true;    /* FIXME */
  58             break;
  59
  60         case STREAM_GET_PTS_DELAY:
  61             *va_arg( args, vlc_tick_t * ) =
  62                 VLC_TICK_FROM_MS(var_InheritInteger( p_access, "network-caching" ));
  63             break;
  64
  65         case STREAM_SET_PAUSE_STATE:
  66             /* Nothing to do */
  67             break;
  68
  69         default:
  70             return VLC_EGENERIC;
  71     }
  72     return VLC_SUCCESS;
  73 }
  74
  75 static int Open(vlc_object_t *obj)
  76 {
  77     stream_t *access = (stream_t *)obj;
  78     vlc_tls_t *sock;
  79     vlc_url_t url;
  80
  81     if (vlc_UrlParse(&url, access->psz_url)
  82      || url.psz_host == NULL || url.i_port == 0)
  83     {
  84         msg_Err(access, "invalid location: %s", access->psz_location);
  85         vlc_UrlClean(&url);
  86         return VLC_EGENERIC;
  87     }
  88
  89     sock = vlc_tls_SocketOpenTCP(obj, url.psz_host, url.i_port);
  90     vlc_UrlClean(&url);
  91     if (sock == NULL)
  92         return VLC_EGENERIC;
  93
  94     access->p_sys = sock;
  95     access->pf_read = Read;
  96     access->pf_block = NULL;
  97     access->pf_control = Control;
  98     access->pf_seek = NULL;
  99     return VLC_SUCCESS;
 100 }
 101
 102 static void Close( vlc_object_t *p_this )
 103 {
 104     stream_t *access = (stream_t *)p_this;
 105
 106     vlc_tls_SessionDelete(access->p_sys);
 107 }
 108
 109 /*****************************************************************************
 110  * Module descriptor
 111  *****************************************************************************/
 112 vlc_module_begin ()
 113     set_shortname( N_("TCP") )
 114     set_description( N_("TCP input") )
 115     set_category( CAT_INPUT )
 116     set_subcategory( SUBCAT_INPUT_ACCESS )
 117
 118     set_capability( "access", 0 )
 119     add_shortcut( "tcp" )
 120     set_callbacks( Open, Close )
 121 vlc_module_end ()