sys/arch/hpc/stand/hpcboot/file_http.h

   1 /* -*-C++-*-    $NetBSD: file_http.h,v 1.5 2006/03/05 04:05:39 uwe Exp $        */
   2
   3 /*-
   4  * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by UCHIYAMA Yasushi.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #ifndef _HPCBOOT_FILE_HTTP_H_
  33 #define _HPCBOOT_FILE_HTTP_H_
  34
  35 #include <file.h>
  36 #include <winsock.h>
  37
  38 class Socket {
  39 private:
  40         struct sockaddr_in &_sockaddr;
  41         SOCKET _socket;
  42 public:
  43         explicit Socket(struct sockaddr_in &);
  44         operator SOCKET() const { return _socket; }
  45         virtual ~Socket(void);
  46 };
  47
  48 class HttpFile : public File {
  49 public:
  50         enum ops {
  51                 FILE_CACHE      = 0x00000001,
  52                 USE_PROXY       = 0x00000002            // XXX not yet.
  53         };
  54
  55 private:
  56         // Wrapper for absorb Windows CE API difference.
  57         int (*_wsa_startup)(WORD, LPWSADATA);
  58         int (*_wsa_cleanup)(void);
  59
  60 private:
  61         // IP Socket
  62         struct WSAData _winsock;
  63         struct sockaddr_in _sockaddr;
  64
  65         enum { TMP_BUFFER_SIZE = 256 };
  66
  67         char _server_name[MAX_PATH];
  68
  69         // HTTP request
  70         char _request[MAX_PATH];
  71         const char *_req_get;
  72         const char *_req_head;
  73         const char *_req_host;
  74         const char *_req_ua;
  75
  76         void _set_request(void);
  77
  78         // HTTP header.
  79         size_t _header_size;
  80         size_t _parse_header(size_t &);
  81
  82         // File buffer.
  83         BOOL _memory_cache;
  84         BOOL _cached;
  85         char *_buffer;
  86         size_t _buffer_size;
  87         size_t _read_from_cache(void *, size_t, off_t);
  88         size_t _recv_buffer(SOCKET, char *, size_t);
  89         void _reset_state(void);
  90         off_t _cur_pos;
  91
  92 public:
  93         HttpFile::HttpFile(Console *&);
  94         virtual ~HttpFile(void);
  95
  96         BOOL setRoot(TCHAR *);
  97         BOOL open(const TCHAR *, uint32_t);
  98         size_t size(void) { size_t hsz; return _parse_header(hsz); }
  99         BOOL close(void) { return TRUE; }
 100         size_t read(void *, size_t, off_t = -1);
 101         size_t write(const void *, size_t, off_t = -1) { return 0; }
 102         BOOL seek(off_t);
 103
 104 };
 105
 106 #endif //_HPCBOOT_FILE_HTTP_H_