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862 lines
24 KiB
862 lines
24 KiB
/*****************************************************************************
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* ftp.c:
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*****************************************************************************
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* Copyright (C) 2001, 2002 VideoLAN
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* $Id: ftp.c,v 1.5 2002/12/31 01:54:35 massiot Exp $
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*
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* Authors: Laurent Aimar <fenrir@via.ecp.fr>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
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*****************************************************************************/
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/*****************************************************************************
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* Preamble
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*****************************************************************************/
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <string.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <vlc/vlc.h>
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#include <vlc/input.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#elif defined( _MSC_VER ) && defined( _WIN32 )
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# include <io.h>
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#endif
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#ifdef WIN32
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# include <winsock2.h>
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# include <ws2tcpip.h>
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# ifndef IN_MULTICAST
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# define IN_MULTICAST(a) IN_CLASSD(a)
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# endif
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#else
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# include <sys/socket.h>
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# include <netinet/in.h>
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# if HAVE_ARPA_INET_H
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# include <arpa/inet.h>
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# elif defined( SYS_BEOS )
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# include <net/netdb.h>
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# endif
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#endif
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#include "network.h"
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/*****************************************************************************
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* Local prototypes
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*****************************************************************************/
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static int Open ( vlc_object_t * );
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static void Close ( vlc_object_t * );
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static int Read ( input_thread_t * p_input, byte_t * p_buffer,
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size_t i_len );
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static void Seek ( input_thread_t *, off_t );
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static int SetProgram ( input_thread_t *, pgrm_descriptor_t * );
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static ssize_t NetRead ( input_thread_t *, input_socket_t *, byte_t *, size_t );
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static void NetClose( input_thread_t *, input_socket_t *);
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static int ftp_SendCommand( input_thread_t *, char *, ... );
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static int ftp_ReadCommand( input_thread_t *, int *, char ** );
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static int ftp_StartStream( input_thread_t *, off_t );
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static int ftp_StopStream ( input_thread_t *);
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/*****************************************************************************
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* Module descriptor
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*****************************************************************************/
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#define CACHING_TEXT N_("caching value in ms")
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#define CACHING_LONGTEXT N_( \
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"Allows you to modify the default caching value for ftp streams. This " \
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"value should be set in miliseconds units." )
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vlc_module_begin();
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set_description( _("ftp access module") );
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set_capability( "access", 0 );
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add_category_hint( "stream", NULL );
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add_integer( "ftp-caching", 2 * DEFAULT_PTS_DELAY / 1000, NULL,
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CACHING_TEXT, CACHING_LONGTEXT );
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add_string( "ftp-user", "anonymous", NULL, "ftp user name", "ftp user name" );
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add_string( "ftp-pwd", "anonymous@dummy.org", NULL, "ftp password", "ftp password, be careful with that option..." );
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add_string( "ftp-account", "anonymous", NULL, "ftp account", "ftp account" );
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add_shortcut( "ftp" );
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set_callbacks( Open, Close );
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vlc_module_end();
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/* url: [/]host[:port][/path] */
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typedef struct url_s
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{
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char *psz_server_addr;
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int i_server_port;
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char *psz_bind_addr;
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int i_bind_port;
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char *psz_path;
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/* private */
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char *psz_private;
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} url_t;
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static void ftp_ParseURL( url_t *, char * );
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#define FREE( p ) if( p ) free( p )
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typedef struct access_s
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{
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input_socket_t socket_cmd;
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input_socket_t socket_data;
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url_t url; /* connect to this server */
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off_t i_filesize;
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int i_eos;
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} access_t;
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/****************************************************************************
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****************************************************************************
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******************* *******************
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******************* Main functions *******************
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******************* *******************
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****************************************************************************
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****************************************************************************/
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/****************************************************************************
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* Open: connect to ftp server and ask for file
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****************************************************************************/
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static int Open( vlc_object_t *p_this )
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{
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input_thread_t *p_input = (input_thread_t*)p_this;
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access_t *p_access;
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char *psz_network;
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module_t *p_network;
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network_socket_t socket_desc;
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url_t *p_url;
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int i_answer;
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char *psz_user, *psz_pwd, *psz_account;
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char *psz_arg;
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/* *** allocate p_access_data *** */
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p_input->p_access_data =
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(void*)p_access = malloc( sizeof( access_t ) );
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memset( p_access, 0, sizeof( access_t ) );
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p_url = &p_access->url;
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/* *** Parse URL and get server addr/port and path *** */
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ftp_ParseURL( p_url, p_input->psz_name );
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if( p_url->psz_server_addr == NULL ||
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!( *p_url->psz_server_addr ) )
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{
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FREE( p_url->psz_private );
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msg_Err( p_input, "invalid server name" );
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return( -1 );
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}
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if( p_url->i_server_port == 0 )
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{
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p_url->i_server_port = 21; /* default port */
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}
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/* 2: look at ip version ipv4/ipv6 */
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psz_network = "";
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if( config_GetInt( p_input, "ipv4" ) )
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{
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psz_network = "ipv4";
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}
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else if( config_GetInt( p_input, "ipv6" ) )
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{
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psz_network = "ipv6";
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}
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/* 3: Open a TCP connection with server *** */
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msg_Dbg( p_input, "waiting for connection..." );
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socket_desc.i_type = NETWORK_TCP;
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socket_desc.psz_server_addr = p_url->psz_server_addr;
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socket_desc.i_server_port = p_url->i_server_port;
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socket_desc.psz_bind_addr = "";
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socket_desc.i_bind_port = 0;
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p_input->p_private = (void*)&socket_desc;
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if( !( p_network = module_Need( p_input, "network", psz_network ) ) )
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{
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msg_Err( p_input, "failed to connect with server" );
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FREE( p_access->url.psz_private );
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FREE( p_input->p_access_data );
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return( -1 );
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}
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module_Unneed( p_input, p_network );
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p_access->socket_cmd.i_handle = socket_desc.i_handle;
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p_input->i_mtu = socket_desc.i_mtu;
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msg_Dbg( p_input,
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"connection with \"%s:%d\" successful",
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p_url->psz_server_addr,
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p_url->i_server_port );
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for( ;; )
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{
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if( ftp_ReadCommand( p_input, &i_answer, NULL ) < 0)
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{
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msg_Err( p_input, "failed to get answer" );
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goto exit_error;
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}
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if( i_answer / 100 != 1 )
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{
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break;
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}
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}
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if( i_answer / 100 != 2 )
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{
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msg_Err( p_input, "connection rejected" );
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goto exit_error;
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}
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else
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{
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msg_Dbg( p_input, "connection accepted (%d)", i_answer );
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}
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psz_user = config_GetPsz( p_input, "ftp-user" );
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if( ftp_SendCommand( p_input, "USER %s", psz_user ) < 0 )
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{
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FREE( psz_user );
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goto exit_error;
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}
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FREE( psz_user );
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if( ftp_ReadCommand( p_input, &i_answer, NULL ) < 0)
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{
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msg_Err( p_input, "failed to get answer" );
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goto exit_error;
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}
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switch( i_answer / 100 )
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{
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case 2:
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msg_Dbg( p_input, "user accepted" );
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break;
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case 3:
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msg_Dbg( p_input, "password needed" );
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psz_pwd = config_GetPsz( p_input, "ftp-pwd" );
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if( ftp_SendCommand( p_input, "PASS %s", psz_pwd ) < 0 )
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{
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FREE( psz_pwd );
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goto exit_error;
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}
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FREE( psz_pwd );
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if( ftp_ReadCommand( p_input, &i_answer, NULL ) < 0)
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{
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msg_Err( p_input, "failed to get answer" );
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goto exit_error;
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}
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switch( i_answer / 100 )
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{
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case 2:
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msg_Dbg( p_input, "password accepted" );
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break;
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case 3:
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msg_Dbg( p_input, "account needed" );
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psz_account = config_GetPsz( p_input, "ftp-account" );
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if( ftp_SendCommand( p_input, "ACCT %s", psz_account ) < 0 )
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{
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FREE( psz_account );
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goto exit_error;
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}
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FREE( psz_account );
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if( ftp_ReadCommand( p_input, &i_answer, NULL ) < 0)
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{
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msg_Err( p_input, "failed to get answer" );
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goto exit_error;
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}
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if( i_answer / 100 != 2 )
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{
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msg_Err( p_input, "account rejected" );
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goto exit_error;
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}
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else
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{
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msg_Dbg( p_input, "account accepted" );
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}
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break;
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default:
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msg_Err( p_input, "password rejected" );
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goto exit_error;
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}
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break;
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default:
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msg_Err( p_input, "user rejected" );
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goto exit_error;
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}
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if( ftp_SendCommand( p_input, "TYPE I" ) < 0 )
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{
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msg_Err( p_input, "cannot set binary transfert mode" );
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goto exit_error;
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}
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if( ftp_ReadCommand( p_input, &i_answer, NULL ) != 2 )
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{
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msg_Err( p_input, "cannot set binary transfert mode" );
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goto exit_error;
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}
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/* get size */
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if( ftp_SendCommand( p_input, "SIZE %s", p_url->psz_path ) < 0 )
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{
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msg_Err( p_input, "cannot get file size" );
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goto exit_error;
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}
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if( ftp_ReadCommand( p_input, &i_answer, &psz_arg ) != 2 )
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{
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msg_Err( p_input, "cannot get file size" );
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goto exit_error;
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}
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#ifdef HAVE_ATOLL
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p_access->i_filesize = atoll( psz_arg + 4 );
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#else
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{
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int64_t i_size = 0;
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char *psz_parser = psz_arg + 4;
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while( *psz_parser == ' ' ) psz_parser++;
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while( psz_parser[0] >= '0' && psz_parser[0] <= '9' )
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{
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i_size *= 10;
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i_size += psz_parser[0] - '0';
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}
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p_access->i_filesize = i_size;
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}
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#endif
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msg_Dbg( p_input, "file size: "I64Fd, p_access->i_filesize );
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FREE( psz_arg );
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if( ftp_StartStream( p_input, 0 ) < 0 )
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{
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msg_Err( p_input, "cannot retrieve file" );
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goto exit_error;
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}
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/* *** set exported functions *** */
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p_input->pf_read = Read;
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p_input->pf_seek = Seek;
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p_input->pf_set_program = SetProgram;
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p_input->pf_set_area = NULL;
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p_input->p_private = NULL;
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/* *** finished to set some variable *** */
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vlc_mutex_lock( &p_input->stream.stream_lock );
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p_input->stream.b_pace_control = 1;
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p_input->stream.p_selected_area->i_tell = 0;
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p_input->stream.b_seekable = 1;
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p_input->stream.b_connected = 1;
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p_input->stream.p_selected_area->i_size = p_access->i_filesize;
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p_input->stream.i_method = INPUT_METHOD_NETWORK;
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vlc_mutex_unlock( &p_input->stream.stream_lock );
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/* Update default_pts to a suitable value for ftp access */
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p_input->i_pts_delay = config_GetInt( p_input, "ftp-caching" ) * 1000;
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return( 0 );
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exit_error:
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NetClose( p_input, &p_access->socket_cmd );
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FREE( p_access->url.psz_private );
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FREE( p_input->p_access_data );
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return( -1 );
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}
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/*****************************************************************************
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* Close: free unused data structures
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*****************************************************************************/
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static void Close( vlc_object_t *p_this )
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{
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input_thread_t *p_input = (input_thread_t *)p_this;
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access_t *p_access = (access_t*)p_input->p_access_data;
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msg_Dbg( p_input, "stopping stream" );
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ftp_StopStream( p_input );
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if( ftp_SendCommand( p_input, "QUIT" ) < 0 )
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{
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msg_Err( p_input, "cannot quit" );
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}
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else
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{
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ftp_ReadCommand( p_input, NULL, NULL );
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}
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NetClose( p_input, &p_access->socket_cmd );
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/* free memory */
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FREE( p_access->url.psz_private );
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}
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/*****************************************************************************
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* SetProgram: do nothing
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*****************************************************************************/
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static int SetProgram( input_thread_t * p_input,
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pgrm_descriptor_t * p_program )
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{
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return( 0 );
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}
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/*****************************************************************************
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* Seek: try to go at the right place
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*****************************************************************************/
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static void Seek( input_thread_t * p_input, off_t i_pos )
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{
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//access_t *p_access = (access_t*)p_input->p_access_data;
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if( i_pos < 0 )
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{
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return;
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}
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vlc_mutex_lock( &p_input->stream.stream_lock );
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msg_Dbg( p_input, "seeking to "I64Fd, i_pos );
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ftp_StopStream( p_input );
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ftp_StartStream( p_input, i_pos );
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p_input->stream.p_selected_area->i_tell = i_pos;
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vlc_mutex_unlock( &p_input->stream.stream_lock );
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}
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static int Read ( input_thread_t * p_input, byte_t * p_buffer,
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size_t i_len )
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{
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access_t *p_access = (access_t*)p_input->p_access_data;
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size_t i_data;
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i_data = NetRead( p_input, &p_access->socket_data, p_buffer, i_len );
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return( i_data );
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}
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static int ftp_SendCommand( input_thread_t *p_input, char *psz_fmt, ... )
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{
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access_t *p_access = (access_t*)p_input->p_access_data;
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va_list args;
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char *psz_buffer;
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#if !defined(HAVE_VASPRINTF) || defined(SYS_DARWIN)
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size_t i_size;
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#endif
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va_start( args, psz_fmt );
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#if defined(HAVE_VASPRINTF) && !defined(SYS_DARWIN)
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vasprintf( &psz_buffer, psz_fmt, args );
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#else
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i_size = strlen( psz_fmt ) + 2048;
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psz_buffer = calloc( i_size, sizeof( char ) );
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vsnprintf( psz_buffer, i_size, psz_fmt, args );
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psz_buffer[i_size - 1] = 0;
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#endif
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if( !strncmp( psz_buffer, "PASS", 4 ) )
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{
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msg_Dbg( p_input, "ftp_SendCommand:\"PASS xxx\"" );
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}
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else
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{
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msg_Dbg( p_input, "ftp_SendCommand:\"%s\"", psz_buffer );
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}
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psz_buffer = realloc( psz_buffer, strlen( psz_buffer ) + 3 );
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strcat( psz_buffer, "\r\n" );
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if( send( p_access->socket_cmd.i_handle,
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psz_buffer,
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strlen( psz_buffer ),
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0 ) == -1 )
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{
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FREE( psz_buffer );
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msg_Err( p_input, "failed to send command" );
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return( -1 );
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}
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FREE( psz_buffer );
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va_end( args );
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return( 0 );
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}
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#define BLOCK_SIZE 1024
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/* TODO support this s**t :
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|
RFC 959 allows the client to send certain TELNET strings at any moment,
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|
even in the middle of a request:
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* \377\377.
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|
* \377\376x where x is one byte.
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|
* \377\375x where x is one byte. The server is obliged to send \377\374x
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* immediately after reading x.
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|
* \377\374x where x is one byte.
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|
* \377\373x where x is one byte. The server is obliged to send \377\376x
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|
* immediately after reading x.
|
|
* \377x for any other byte x.
|
|
|
|
These strings are not part of the requests, except in the case \377\377,
|
|
where the request contains one \377. */
|
|
|
|
static int ftp_ReadCommand( input_thread_t *p_input,
|
|
int *pi_answer, char **ppsz_answer )
|
|
{
|
|
access_t *p_access = (access_t*)p_input->p_access_data;
|
|
uint8_t *p_buffer;
|
|
int i_buffer;
|
|
int i_buffer_size;
|
|
|
|
int i_answer;
|
|
|
|
i_buffer = 0;
|
|
i_buffer_size = BLOCK_SIZE + 1;
|
|
p_buffer = malloc( BLOCK_SIZE + 1);
|
|
|
|
for( ;; )
|
|
{
|
|
ssize_t i_read;
|
|
i_read = NetRead( p_input, &p_access->socket_cmd,
|
|
p_buffer + i_buffer, BLOCK_SIZE );
|
|
if( i_read <= 0 || p_input->b_die || p_input->b_error )
|
|
{
|
|
free( p_buffer );
|
|
if( pi_answer ) *pi_answer = 500;
|
|
if( ppsz_answer ) *ppsz_answer = NULL;
|
|
return( -1 );
|
|
}
|
|
if( i_read == 0 )
|
|
{
|
|
// continue;
|
|
}
|
|
i_buffer += i_read;
|
|
if( i_read < BLOCK_SIZE )
|
|
{
|
|
p_buffer[i_buffer] = '\0';
|
|
break;
|
|
}
|
|
i_buffer_size += BLOCK_SIZE;
|
|
p_buffer = realloc( p_buffer, i_buffer_size );
|
|
}
|
|
|
|
if( i_buffer < 3 )
|
|
{
|
|
goto exit_error;
|
|
}
|
|
|
|
i_answer = atoi( p_buffer );
|
|
|
|
if( pi_answer ) *pi_answer = i_answer;
|
|
if( ppsz_answer )
|
|
{
|
|
*ppsz_answer = p_buffer;
|
|
}
|
|
else
|
|
{
|
|
free( p_buffer );
|
|
}
|
|
return( i_answer / 100 );
|
|
|
|
exit_error:
|
|
free( p_buffer );
|
|
if( pi_answer ) *pi_answer = 500;
|
|
if( ppsz_answer ) *ppsz_answer = NULL;
|
|
return( -1 );
|
|
}
|
|
|
|
static int ftp_StartStream( input_thread_t *p_input, off_t i_start )
|
|
{
|
|
access_t *p_access = (access_t*)p_input->p_access_data;
|
|
|
|
char psz_ip[1000];
|
|
int i_answer;
|
|
char *psz_arg, *psz_parser;
|
|
int a1,a2,a3,a4;
|
|
int p1,p2;
|
|
int i_port;
|
|
module_t *p_network;
|
|
network_socket_t socket_desc;
|
|
|
|
if( ftp_SendCommand( p_input, "PASV" ) < 0 )
|
|
{
|
|
msg_Err( p_input, "cannot set passive transfert mode" );
|
|
return( -1 );
|
|
}
|
|
if( ftp_ReadCommand( p_input, &i_answer, &psz_arg ) != 2 )
|
|
{
|
|
msg_Err( p_input, "cannot set passive transfert mode" );
|
|
return( -1 );
|
|
}
|
|
psz_parser = strchr( psz_arg, '(' );
|
|
if( !psz_parser || sscanf( psz_parser, "(%d,%d,%d,%d,%d,%d", &a1, &a2, &a3, &a4, &p1, &p2 ) < 6 )
|
|
{
|
|
FREE( psz_arg );
|
|
msg_Err( p_input, "cannot get ip/port for passive transfert mode" );
|
|
return( -1 );
|
|
}
|
|
FREE( psz_arg );
|
|
|
|
sprintf( psz_ip, "%d.%d.%d.%d", a1, a2, a3, a4 );
|
|
i_port = p1 * 256 + p2;
|
|
msg_Dbg( p_input, "ip:%s port:%d", psz_ip, i_port );
|
|
|
|
if( ftp_SendCommand( p_input, "TYPE I" ) < 0 )
|
|
{
|
|
msg_Err( p_input, "cannot set binary transfert mode" );
|
|
return( -1 );
|
|
}
|
|
if( ftp_ReadCommand( p_input, &i_answer, NULL ) != 2 )
|
|
{
|
|
msg_Err( p_input, "cannot set binary transfert mode" );
|
|
return( -1 );
|
|
}
|
|
|
|
|
|
if( i_start > 0 )
|
|
{
|
|
if( ftp_SendCommand( p_input, "REST "I64Fu, i_start ) < 0 )
|
|
{
|
|
msg_Err( p_input, "cannot set restart point" );
|
|
return( -1 );
|
|
}
|
|
if( ftp_ReadCommand( p_input, &i_answer, NULL ) > 3 )
|
|
{
|
|
msg_Err( p_input, "cannot set restart point" );
|
|
return( -1 );
|
|
}
|
|
}
|
|
|
|
msg_Dbg( p_input, "waiting for data connection..." );
|
|
socket_desc.i_type = NETWORK_TCP;
|
|
socket_desc.psz_server_addr = psz_ip;
|
|
socket_desc.i_server_port = i_port;
|
|
socket_desc.psz_bind_addr = "";
|
|
socket_desc.i_bind_port = 0;
|
|
p_input->p_private = (void*)&socket_desc;
|
|
if( !( p_network = module_Need( p_input, "network", "" ) ) )
|
|
{
|
|
msg_Err( p_input, "failed to connect with server" );
|
|
return( -1 );
|
|
}
|
|
module_Unneed( p_input, p_network );
|
|
p_access->socket_data.i_handle = socket_desc.i_handle;
|
|
p_input->i_mtu = socket_desc.i_mtu;
|
|
msg_Dbg( p_input,
|
|
"connection with \"%s:%d\" successful",
|
|
psz_ip, i_port );
|
|
|
|
if( ftp_SendCommand( p_input, "RETR %s", p_access->url.psz_path ) < 0 )
|
|
{
|
|
msg_Err( p_input, "cannot retreive file" );
|
|
return( -1 );
|
|
}
|
|
/* "1xx" message */
|
|
if( ftp_ReadCommand( p_input, &i_answer, NULL ) > 2 )
|
|
{
|
|
msg_Err( p_input, "cannot retreive file" );
|
|
return( -1 );
|
|
}
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
static int ftp_StopStream ( input_thread_t *p_input)
|
|
{
|
|
access_t *p_access = (access_t*)p_input->p_access_data;
|
|
|
|
int i_answer;
|
|
|
|
NetClose( p_input, &p_access->socket_data );
|
|
|
|
if( ftp_SendCommand( p_input, "ABOR" ) < 0 )
|
|
{
|
|
msg_Err( p_input, "cannot abord file" );
|
|
}
|
|
else
|
|
{
|
|
ftp_ReadCommand( p_input, &i_answer, NULL );
|
|
ftp_ReadCommand( p_input, &i_answer, NULL );
|
|
}
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
/****************************************************************************
|
|
*
|
|
****************************************************************************/
|
|
static void ftp_ParseURL( url_t *p_url, char *psz_url )
|
|
{
|
|
char *psz_parser;
|
|
char *psz_server_port;
|
|
|
|
p_url->psz_private = strdup( psz_url );
|
|
|
|
psz_parser = p_url->psz_private;
|
|
|
|
while( *psz_parser == '/' )
|
|
{
|
|
psz_parser++;
|
|
}
|
|
p_url->psz_server_addr = psz_parser;
|
|
|
|
while( *psz_parser &&
|
|
*psz_parser != ':' && *psz_parser != '/' && *psz_parser != '@' )
|
|
{
|
|
psz_parser++;
|
|
}
|
|
|
|
if( *psz_parser == ':' )
|
|
{
|
|
*psz_parser = '\0';
|
|
psz_parser++;
|
|
psz_server_port = psz_parser;
|
|
|
|
while( *psz_parser && *psz_parser != '/' )
|
|
{
|
|
psz_parser++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
psz_server_port = "";
|
|
}
|
|
|
|
if( *psz_parser == '@' )
|
|
{
|
|
char *psz_bind_port;
|
|
|
|
*psz_parser = '\0';
|
|
psz_parser++;
|
|
|
|
p_url->psz_bind_addr = psz_parser;
|
|
|
|
while( *psz_parser && *psz_parser != ':' && *psz_parser != '/' )
|
|
{
|
|
psz_parser++;
|
|
}
|
|
|
|
if( *psz_parser == ':' )
|
|
{
|
|
*psz_parser = '\0';
|
|
psz_parser++;
|
|
psz_bind_port = psz_parser;
|
|
|
|
while( *psz_parser && *psz_parser != '/' )
|
|
{
|
|
psz_parser++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
psz_bind_port = "";
|
|
}
|
|
if( *psz_bind_port )
|
|
{
|
|
p_url->i_bind_port = strtol( psz_bind_port, &psz_parser, 10 );
|
|
}
|
|
else
|
|
{
|
|
p_url->i_bind_port = 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
p_url->psz_bind_addr = "";
|
|
p_url->i_bind_port = 0;
|
|
}
|
|
|
|
if( *psz_parser == '/' )
|
|
{
|
|
*psz_parser = '\0';
|
|
psz_parser++;
|
|
p_url->psz_path = psz_parser;
|
|
}
|
|
|
|
if( *psz_server_port )
|
|
{
|
|
p_url->i_server_port = strtol( psz_server_port, &psz_parser, 10 );
|
|
}
|
|
else
|
|
{
|
|
p_url->i_server_port = 0;
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* Read: read on a file descriptor, checking b_die periodically
|
|
*****************************************************************************/
|
|
static ssize_t NetRead( input_thread_t *p_input,
|
|
input_socket_t *p_socket,
|
|
byte_t *p_buffer, size_t i_len )
|
|
{
|
|
#ifdef UNDER_CE
|
|
return -1;
|
|
|
|
#else
|
|
struct timeval timeout;
|
|
fd_set fds;
|
|
int i_ret;
|
|
|
|
/* Initialize file descriptor set */
|
|
FD_ZERO( &fds );
|
|
FD_SET( p_socket->i_handle, &fds );
|
|
|
|
/* We'll wait 1 second if nothing happens */
|
|
timeout.tv_sec = 0;
|
|
timeout.tv_usec = 1000000;
|
|
|
|
/* Find if some data is available */
|
|
i_ret = select( p_socket->i_handle + 1, &fds,
|
|
NULL, NULL, &timeout );
|
|
|
|
if( i_ret == -1 && errno != EINTR )
|
|
{
|
|
msg_Err( p_input, "network select error (%s)", strerror(errno) );
|
|
}
|
|
else if( i_ret > 0 )
|
|
{
|
|
ssize_t i_recv = recv( p_socket->i_handle, p_buffer, i_len, 0 );
|
|
|
|
if( i_recv < 0 )
|
|
{
|
|
msg_Err( p_input, "recv failed (%s)", strerror(errno) );
|
|
}
|
|
|
|
return i_recv;
|
|
}
|
|
|
|
return 0;
|
|
|
|
#endif
|
|
}
|
|
|
|
static void NetClose( input_thread_t *p_input, input_socket_t *p_socket )
|
|
{
|
|
#if defined( UNDER_CE )
|
|
CloseHandle( (HANDLE)p_socket->i_handle );
|
|
#elif defined( WIN32 )
|
|
closesocket( p_socket->i_handle );
|
|
#else
|
|
close( p_socket->i_handle );
|
|
#endif
|
|
}
|
|
|
|
|