network.h
上传用户:riyaled888
上传日期:2009-03-27
资源大小:7338k
文件大小:8k
- /*****************************************************************************
- * network.h: interface to communicate with network plug-ins
- *****************************************************************************
- * Copyright (C) 2002 VideoLAN
- * $Id: network.h 9219 2004-11-07 11:17:37Z courmisch $
- *
- * Authors: Christophe Massiot <massiot@via.ecp.fr>
- * Laurent Aimar <fenrir@via.ecp.fr>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- #ifndef __VLC_NETWORK_H
- # define __VLC_NETWORK_H
- /*****************************************************************************
- * network_socket_t: structure passed to a network plug-in to define the
- * kind of socket we want
- *****************************************************************************/
- struct network_socket_t
- {
- unsigned int i_type;
- char * psz_bind_addr;
- int i_bind_port;
- char * psz_server_addr;
- int i_server_port;
- int i_ttl;
- /* Return values */
- int i_handle;
- size_t i_mtu;
- };
- /* Socket types */
- #define NETWORK_UDP 1
- #define NETWORK_TCP 2
- #define NETWORK_TCP_PASSIVE 3
- typedef struct
- {
- char *psz_protocol;
- char *psz_host;
- int i_port;
- char *psz_path;
- char *psz_option;
- } vlc_url_t;
- /*****************************************************************************
- * vlc_UrlParse:
- *****************************************************************************
- * option : if != 0 then path is split at this char
- *
- * format [protocol://][host[:port]]/path[OPTIONoption]
- *****************************************************************************/
- static inline void vlc_UrlParse( vlc_url_t *url, char *psz_url, char option )
- {
- char *psz_dup = psz_url ? strdup( psz_url ) : 0;
- char *psz_parse = psz_dup;
- char *p;
- url->psz_protocol = NULL;
- url->psz_host = NULL;
- url->i_port = 0;
- url->psz_path = NULL;
- url->psz_option = NULL;
- if( !psz_url ) return;
- if( ( p = strstr( psz_parse, ":/" ) ) )
- {
- /* we have a protocol */
- /* skip :// */
- *p++ = ' ';
- if( p[0] == '/' && p[1] == '/' )
- {
- p += 2;
- }
- url->psz_protocol = strdup( psz_dup );
- psz_parse = p;
- }
- p = strchr( psz_parse, '/' );
- if( !p || psz_parse < p )
- {
- char *p2;
- /* We have a host[:port] */
- url->psz_host = strdup( psz_parse );
- if( p )
- {
- url->psz_host[p - psz_parse] = ' ';
- }
- if( *url->psz_host == '[' )
- {
- /* Ipv6 address */
- p2 = strchr( url->psz_host, ']' );
- if( p2 )
- {
- p2 = strchr( p2, ':' );
- }
- }
- else
- {
- p2 = strchr( url->psz_host, ':' );
- }
- if( p2 )
- {
- *p2++ = ' ';
- url->i_port = atoi( p2 );
- }
- }
- psz_parse = p;
- /* Now parse psz_path and psz_option */
- if( psz_parse )
- {
- url->psz_path = strdup( psz_parse );
- if( option != ' ' )
- {
- p = strchr( url->psz_path, option );
- if( p )
- {
- *p++ = ' ';
- url->psz_option = strdup( p );
- }
- }
- }
- free( psz_dup );
- }
- /*****************************************************************************
- * vlc_UrlClean:
- *****************************************************************************
- *
- *****************************************************************************/
- static inline void vlc_UrlClean( vlc_url_t *url )
- {
- if( url->psz_protocol ) free( url->psz_protocol );
- if( url->psz_host ) free( url->psz_host );
- if( url->psz_path ) free( url->psz_path );
- if( url->psz_option ) free( url->psz_option );
- url->psz_protocol = NULL;
- url->psz_host = NULL;
- url->i_port = 0;
- url->psz_path = NULL;
- url->psz_option = NULL;
- }
-
- /*****************************************************************************
- * vlc_b64_encode:
- *****************************************************************************
- *
- *****************************************************************************/
- static inline char *vlc_b64_encode( unsigned char *src )
- {
- static const char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
- char *dst = malloc( strlen( src ) * 4 / 3 + 12 );
- char *ret = dst;
- unsigned i_bits = 0;
- unsigned i_shift = 0;
-
- for( ;; )
- {
- if( *src )
- {
- i_bits = ( i_bits << 8 )|( *src++ );
- i_shift += 8;
- }
- else if( i_shift > 0 )
- {
- i_bits <<= 6 - i_shift;
- i_shift = 6;
- }
- else
- {
- *dst++ = '=';
- break;
- }
-
- while( i_shift >= 6 )
- {
- i_shift -= 6;
- *dst++ = b64[(i_bits >> i_shift)&0x3f];
- }
- }
-
- *dst++ = ' ';
-
- return ret;
- }
- #define net_OpenTCP(a, b, c) __net_OpenTCP(VLC_OBJECT(a), b, c)
- VLC_EXPORT( int, __net_OpenTCP, ( vlc_object_t *p_this, const char *psz_host, int i_port ) );
- #define net_ListenTCP(a, b, c) __net_ListenTCP(VLC_OBJECT(a), b, c)
- VLC_EXPORT( int, __net_ListenTCP, ( vlc_object_t *p_this, char *psz_localaddr, int i_port ) );
- #define net_Accept(a, b, c) __net_Accept(VLC_OBJECT(a), b, c)
- VLC_EXPORT( int, __net_Accept, ( vlc_object_t *p_this, int fd_listen, mtime_t i_wait ) );
- #define net_OpenUDP(a, b, c, d, e ) __net_OpenUDP(VLC_OBJECT(a), b, c, d, e)
- VLC_EXPORT( int, __net_OpenUDP, ( vlc_object_t *p_this, char *psz_bind, int i_bind, char *psz_server, int i_server ) );
- VLC_EXPORT( void, net_Close, ( int fd ) );
- #define net_Read(a,b,c,d,e) __net_Read(VLC_OBJECT(a),b,c,d,e)
- VLC_EXPORT( int, __net_Read, ( vlc_object_t *p_this, int fd, uint8_t *p_data, int i_data, vlc_bool_t b_retry ) );
- #define net_ReadNonBlock(a,b,c,d,e) __net_ReadNonBlock(VLC_OBJECT(a),b,c,d,e)
- VLC_EXPORT( int, __net_ReadNonBlock, ( vlc_object_t *p_this, int fd, uint8_t *p_data, int i_data, mtime_t i_wait ) );
- #define net_Select(a,b,c,d,e,f) __net_Select(VLC_OBJECT(a),b,c,d,e,f)
- VLC_EXPORT( int, __net_Select, ( vlc_object_t *p_this, int *pi_fd, int i_fd,uint8_t *p_data, int i_data, mtime_t i_wait ) );
- #define net_Write(a,b,c,d) __net_Write(VLC_OBJECT(a),b,c,d)
- VLC_EXPORT( int, __net_Write, ( vlc_object_t *p_this, int fd, uint8_t *p_data, int i_data ) );
- #define net_Gets(a,b) __net_Gets(VLC_OBJECT(a),b)
- VLC_EXPORT( char *, __net_Gets, ( vlc_object_t *p_this, int fd ) );
- VLC_EXPORT( int, net_Printf, ( vlc_object_t *p_this, int fd, const char *psz_fmt, ... ) );
- #define net_vaPrintf(a,b,c,d) __net_vaPrintf(VLC_OBJECT(a),b,c,d)
- VLC_EXPORT( int, __net_vaPrintf, ( vlc_object_t *p_this, int fd, const char *psz_fmt, va_list args ) );
- #endif