directory.c

uclinux 下的vlc播放器源代码

                          p_playlist->status.i_view,
                          p_playlist->status.p_item, NULL );
    }
    if( psz_name ) free( psz_name );
    vlc_object_release( p_playlist );

    /* Return fake data forever */
    p_access->pf_read = ReadNull;
    return ReadNull( p_access, p_buffer, i_len );
}

/*****************************************************************************
 * DemuxOpen:
 *****************************************************************************/
static int Control( access_t *p_access, int i_query, va_list args )
{
    vlc_bool_t   *pb_bool;
    int          *pi_int;
    int64_t      *pi_64;

    switch( i_query )
    {
        /* */
        case ACCESS_CAN_SEEK:
        case ACCESS_CAN_FASTSEEK:
        case ACCESS_CAN_PAUSE:
        case ACCESS_CAN_CONTROL_PACE:
            pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
            *pb_bool = VLC_FALSE;    /* FIXME */
            break;

        /* */
        case ACCESS_GET_MTU:
            pi_int = (int*)va_arg( args, int * );
            *pi_int = 0;
            break;

        case ACCESS_GET_PTS_DELAY:
            pi_64 = (int64_t*)va_arg( args, int64_t * );
            *pi_64 = DEFAULT_PTS_DELAY * 1000;
            break;

        /* */
        case ACCESS_SET_PAUSE_STATE:
        case ACCESS_GET_TITLE_INFO:
        case ACCESS_SET_TITLE:
        case ACCESS_SET_SEEKPOINT:
        case ACCESS_SET_PRIVATE_ID_STATE:
            return VLC_EGENERIC;

        default:
            msg_Warn( p_access, "unimplemented query in control" );
            return VLC_EGENERIC;
    }
    return VLC_SUCCESS;
}

/*****************************************************************************
 * DemuxOpen:
 *****************************************************************************/
static int DemuxOpen ( vlc_object_t *p_this )
{
    demux_t *p_demux = (demux_t*)p_this;

    if( strcmp( p_demux->psz_demux, "directory" ) )
        return VLC_EGENERIC;

    p_demux->pf_demux   = Demux;
    p_demux->pf_control = DemuxControl;
    return VLC_SUCCESS;
}

/*****************************************************************************
 * Demux: EOF
 *****************************************************************************/
static int Demux( demux_t *p_demux )
{
    return 0;
}

/*****************************************************************************
 * DemuxControl:
 *****************************************************************************/
static int DemuxControl( demux_t *p_demux, int i_query, va_list args )
{
    return demux2_vaControlHelper( p_demux->s, 0, 0, 0, 1, i_query, args );
}

static int Filter( const struct dirent *foo )
{
    return VLC_TRUE;
}

/*****************************************************************************
 * ReadDir: read a directory and add its content to the list
 *****************************************************************************/
static int ReadDir( playlist_t *p_playlist, const char *psz_name,
                    int i_mode, playlist_item_t *p_parent )
{
    struct dirent   **pp_dir_content = 0;
    int             i_dir_content, i, i_return = VLC_SUCCESS;
    playlist_item_t *p_node;

    char **ppsz_extensions = 0;
    int i_extensions = 0;
    char *psz_ignore;

    /* Get the first directory entry */
    i_dir_content = scandir( psz_name, &pp_dir_content, Filter, alphasort );
    if( i_dir_content == -1 )
    {
        msg_Warn( p_playlist, "failed to read directory" );
        return VLC_EGENERIC;
    }
    else if( i_dir_content <= 0 )
    {
        /* directory is empty */
        if( pp_dir_content ) free( pp_dir_content );
        return VLC_SUCCESS;
    }

    /* Build array with ignores */
    psz_ignore = var_CreateGetString( p_playlist, "ignore-filetypes" );
    if( psz_ignore && *psz_ignore )
    {
        char *psz_parser = psz_ignore;
        int a;

        for( a = 0; psz_parser[a] != '\0'; a++ )
        {
            if( psz_parser[a] == ',' ) i_extensions++;
        }

        ppsz_extensions = (char **)malloc( sizeof( char * ) * i_extensions );

        for( a = 0; a < i_extensions; a++ )
        {
            char *tmp, *ptr;

            while( psz_parser[0] != '\0' && psz_parser[0] == ' ' ) psz_parser++;
            ptr = strchr( psz_parser, ',');
            tmp = ( ptr == NULL )
                 ? strdup( psz_parser )
                 : strndup( psz_parser, ptr - psz_parser );

            ppsz_extensions[a] = tmp;
            psz_parser = ptr + 1;
        }
    }

    /* Change the item to a node */
    if( p_parent->i_children == -1 )
    {
        playlist_LockItemToNode( p_playlist,p_parent );
    }

    /* While we still have entries in the directory */
    for( i = 0; i < i_dir_content; i++ )
    {
        struct dirent *p_dir_content = pp_dir_content[i];
        int i_size_entry = strlen( psz_name ) +
                           strlen( p_dir_content->d_name ) + 2;
        char *psz_uri = (char *)malloc( sizeof(char) * i_size_entry );

        sprintf( psz_uri, "%s/%s", psz_name, p_dir_content->d_name );

        /* if it starts with '.' then forget it */
        if( p_dir_content->d_name[0] != '.' )
        {
#if defined( S_ISDIR )
            struct stat stat_data;

            if( !stat( psz_uri, &stat_data )
             && S_ISDIR(stat_data.st_mode) && i_mode != MODE_COLLAPSE )
#elif defined( DT_DIR )
            if( ( p_dir_content->d_type & DT_DIR ) && i_mode != MODE_COLLAPSE )
#else
            if( 0 )
#endif
            {
#if defined( S_ISLNK )
/*
 * FIXME: there is a ToCToU race condition here; but it is rather tricky
 * impossible to fix while keeping some kind of portable code, and maybe even
 * in a non-portable way.
 */
                if( lstat( psz_uri, &stat_data )
                 || S_ISLNK(stat_data.st_mode) )
                {
                    msg_Dbg( p_playlist, "skipping directory symlink %s",
                             psz_uri );
                    free( psz_uri );
                    continue;
                }
#endif
                if( i_mode == MODE_NONE )
                {
                    msg_Dbg( p_playlist, "skipping subdirectory %s", psz_uri );
                    free( psz_uri );
                    continue;
                }
                else if( i_mode == MODE_EXPAND )
                {
                    char *psz_newname, *psz_tmp;
                    msg_Dbg(p_playlist, "reading subdirectory %s", psz_uri );

                    psz_tmp = FromLocale( p_dir_content->d_name );
                    psz_newname = vlc_fix_readdir_charset(
                                                p_playlist, psz_tmp );
                    LocaleFree( psz_tmp );

                    p_node = playlist_NodeCreate( p_playlist,
                                       p_parent->pp_parents[0]->i_view,
                                       psz_newname, p_parent );

                    playlist_CopyParents(  p_parent, p_node );

                    p_node->input.i_type = ITEM_TYPE_DIRECTORY;

                    /* an strdup() just because of Mac OS X */
                    free( psz_newname );

                    /* If we had the parent in category, the it is now node.
                     * Else, we still don't have  */
                    if( ReadDir( p_playlist, psz_uri , MODE_EXPAND,
                                 p_node ) != VLC_SUCCESS )
                    {
                        i_return = VLC_EGENERIC;
                        break;
                    }
                }
            }
            else
            {
                playlist_item_t *p_item;
                char *psz_tmp1, *psz_tmp2, *psz_loc;

                if( i_extensions > 0 )
                {
                    char *psz_dot = strrchr( p_dir_content->d_name, '.' );
                    if( psz_dot++ && *psz_dot )
                    {
                        int a;
                        for( a = 0; a < i_extensions; a++ )
                        {
                            if( !strcmp( psz_dot, ppsz_extensions[a] ) )
                                break;
                        }
                        if( a < i_extensions )
                        {
                            msg_Dbg( p_playlist, "ignoring file %s", psz_uri );
                            free( psz_uri );
                            continue;
                        }
                    }
                }

                psz_loc = FromLocale( psz_uri );
                psz_tmp1 = vlc_fix_readdir_charset( VLC_OBJECT(p_playlist),
                                                    psz_loc );
                LocaleFree( psz_loc );

                psz_loc = FromLocale( p_dir_content->d_name );
                psz_tmp2 = vlc_fix_readdir_charset( VLC_OBJECT(p_playlist),
                                                    psz_loc );
                LocaleFree( psz_loc );

                p_item = playlist_ItemNewWithType( VLC_OBJECT(p_playlist),
                        psz_tmp1, psz_tmp2, ITEM_TYPE_VFILE );
                playlist_NodeAddItem( p_playlist,p_item,
                                      p_parent->pp_parents[0]->i_view,
                                      p_parent,
                                      PLAYLIST_APPEND | PLAYLIST_PREPARSE,
                                      PLAYLIST_END );

                playlist_CopyParents( p_parent, p_item );
            }
        }
        free( psz_uri );
    }

    for( i = 0; i < i_extensions; i++ )
        if( ppsz_extensions[i] ) free( ppsz_extensions[i] );
    if( ppsz_extensions ) free( ppsz_extensions );

    if( psz_ignore ) free( psz_ignore );

    for( i = 0; i < i_dir_content; i++ )
        if( pp_dir_content[i] ) free( pp_dir_content[i] );
    if( pp_dir_content ) free( pp_dir_content );

    return i_return;
}