network.h 8.23 KB
Newer Older
Sam Hocevar's avatar
 
Sam Hocevar committed
1
/*****************************************************************************
Christophe Massiot's avatar
Christophe Massiot committed
2
 * network.h: interface to communicate with network plug-ins
Sam Hocevar's avatar
 
Sam Hocevar committed
3
 *****************************************************************************
Christophe Massiot's avatar
Christophe Massiot committed
4
 * Copyright (C) 2002 VideoLAN
zorglub's avatar
zorglub committed
5
 * $Id$
Sam Hocevar's avatar
 
Sam Hocevar committed
6
 *
7
 * Authors: Christophe Massiot <massiot@via.ecp.fr>
8
 *          Laurent Aimar <fenrir@via.ecp.fr>
Sam Hocevar's avatar
 
Sam Hocevar committed
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
 *
 * 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.
 *****************************************************************************/

25 26
#ifndef __VLC_NETWORK_H
# define __VLC_NETWORK_H
Christophe Massiot's avatar
Christophe Massiot committed
27 28 29 30
/*****************************************************************************
 * network_socket_t: structure passed to a network plug-in to define the
 *                   kind of socket we want
 *****************************************************************************/
31
struct network_socket_t
Christophe Massiot's avatar
Christophe Massiot committed
32 33 34 35 36 37 38 39 40
{
    unsigned int i_type;

    char * psz_bind_addr;
    int i_bind_port;

    char * psz_server_addr;
    int i_server_port;

41 42
    int i_ttl;

Christophe Massiot's avatar
Christophe Massiot committed
43 44 45
    /* Return values */
    int i_handle;
    size_t i_mtu;
46
};
Christophe Massiot's avatar
Christophe Massiot committed
47 48 49 50

/* Socket types */
#define NETWORK_UDP 1
#define NETWORK_TCP 2
51
#define NETWORK_TCP_PASSIVE 3
Christophe Massiot's avatar
Christophe Massiot committed
52

53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69

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
 *
70
 * format [protocol://][host[:port]]/path[OPTIONoption]
71 72 73
 *****************************************************************************/
static inline void vlc_UrlParse( vlc_url_t *url, char *psz_url, char option )
{
74
    char *psz_dup = psz_url ? strdup( psz_url ) : 0;
75 76 77 78 79 80 81 82 83
    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;

84 85
    if( !psz_url ) return;

86
    if( ( p  = strstr( psz_parse, ":/" ) ) )
87 88 89 90 91 92 93 94 95 96 97 98
    {
        /* we have a protocol */

        /* skip :// */
        *p++ = '\0';
        if( p[0] == '/' && p[1] == '/' )
        {
            p += 2;
        }
        url->psz_protocol = strdup( psz_dup );

        psz_parse = p;
99
    }
100

101 102 103 104
    p = strchr( psz_parse, '/' );
    if( !p || psz_parse < p )
    {
        char *p2;
105

106 107 108 109 110
        /* We have a host[:port] */
        url->psz_host = strdup( psz_parse );
        if( p )
        {
            url->psz_host[p - psz_parse] = '\0';
111 112
        }

113 114 115 116 117 118 119 120 121 122 123 124 125
        if( *url->psz_host == '[' )
        {
            /* Ipv6 address */
            p2 = strchr( url->psz_host, ']' );
            if( p2 )
            {
                p2 = strchr( p2, ':' );
            }
        }
        else
        {
            p2 = strchr( url->psz_host, ':' );
        }
126 127 128 129 130 131
        if( p2 )
        {
            *p2++ = '\0';
            url->i_port = atoi( p2 );
        }
    }
132
    psz_parse = p;
133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168

    /* Now parse psz_path and psz_option */
    if( psz_parse )
    {
        url->psz_path = strdup( psz_parse );
        if( option != '\0' )
        {
            p = strchr( url->psz_path, option );
            if( p )
            {
                *p++ = '\0';
                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;
}
169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212
                    
/*****************************************************************************
 * 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++ = '\0';
                                                                                
    return ret;
}
213

214
VLC_EXPORT( int, net_ConvertIPv4, ( uint32_t *p_addr, const char * psz_address ) );
215 216

/* Portable networking layer communication */
Laurent Aimar's avatar
 
Laurent Aimar committed
217
#define net_OpenTCP(a, b, c) __net_OpenTCP(VLC_OBJECT(a), b, c)
218
VLC_EXPORT( int, __net_OpenTCP, ( vlc_object_t *p_this, const char *psz_host, int i_port ) );
Laurent Aimar's avatar
 
Laurent Aimar committed
219

220 221 222
#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 ) );

223 224 225
#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 ) );

Laurent Aimar's avatar
Laurent Aimar committed
226 227 228
#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 ) );

Laurent Aimar's avatar
 
Laurent Aimar committed
229 230 231
VLC_EXPORT( void, net_Close, ( int fd ) );


232 233 234 235 236 237 238 239 240 241
/* Functions to read from or write to the networking layer */
struct virtual_socket_t
{
    void *p_sys;
    int (*pf_recv) ( void *, void *, int );
    int (*pf_send) ( void *, const void *, int );
};

#define net_Read(a,b,c,d,e,f) __net_Read(VLC_OBJECT(a),b,c,d,e,f)
VLC_EXPORT( int, __net_Read, ( vlc_object_t *p_this, int fd, v_socket_t *, uint8_t *p_data, int i_data, vlc_bool_t b_retry ) );
zorglub's avatar
zorglub committed
242

243 244
#define net_ReadNonBlock(a,b,c,d,e,f) __net_ReadNonBlock(VLC_OBJECT(a),b,c,d,e,f)
VLC_EXPORT( int, __net_ReadNonBlock, ( vlc_object_t *p_this, int fd, v_socket_t *, uint8_t *p_data, int i_data, mtime_t i_wait ) );
zorglub's avatar
zorglub committed
245

246 247
#define net_Select(a,b,c,d,e,f,g) __net_Select(VLC_OBJECT(a),b,c,d,e,f,g)
VLC_EXPORT( int, __net_Select, ( vlc_object_t *p_this, int *pi_fd, v_socket_t **, int i_fd, uint8_t *p_data, int i_data, mtime_t i_wait ) );
zorglub's avatar
zorglub committed
248

249 250
#define net_Write(a,b,c,d,e) __net_Write(VLC_OBJECT(a),b,c,d,e)
VLC_EXPORT( int, __net_Write, ( vlc_object_t *p_this, int fd, v_socket_t *, uint8_t *p_data, int i_data ) );
Laurent Aimar's avatar
 
Laurent Aimar committed
251

252 253
#define net_Gets(a,b,c) __net_Gets(VLC_OBJECT(a),b,c)
VLC_EXPORT( char *, __net_Gets, ( vlc_object_t *p_this, int fd, v_socket_t * ) );
Laurent Aimar's avatar
 
Laurent Aimar committed
254

255
VLC_EXPORT( int, net_Printf, ( vlc_object_t *p_this, int fd, v_socket_t *, const char *psz_fmt, ... ) );
Laurent Aimar's avatar
 
Laurent Aimar committed
256

257 258
#define net_vaPrintf(a,b,c,d,e) __net_vaPrintf(VLC_OBJECT(a),b,c,d,e)
VLC_EXPORT( int, __net_vaPrintf, ( vlc_object_t *p_this, int fd, v_socket_t *, const char *psz_fmt, va_list args ) );
259 260

#endif