modules/access/tcp.c

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