forked from osmocom/wireshark
a234b68ff0
They made cppcheck unhappy. svn path=/trunk/; revision=43779
202 lines
5.2 KiB
C
202 lines
5.2 KiB
C
/*
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* $Id$
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*
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* Copyright (c) 2000, Red Hat, Inc.
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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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* A copy of the GNU General Public License can be found at
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* http://www.gnu.org/
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*
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* Written by DJ Delorie <dj@cygnus.com>
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* Modified by Ulf Lamping to meet Wireshark use
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*
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*/
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/* The purpose of this file is to manage internet downloads using the
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Internet Explorer version 5 DLLs. To use this method, the user
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must already have installed and configured IE5. */
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#include "windows.h"
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#include <wininet.h>
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#include "nio-ie5.h"
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#include <glib.h>
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static HINTERNET internet = 0;
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netio_ie5_t *
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netio_ie5_connect (char const *url)
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{
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int resend = 0;
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DWORD type, type_s;
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netio_ie5_t * netio_ie5_conn;
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DWORD dw_ret;
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DWORD flags =
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/* INTERNET_FLAG_DONT_CACHE |*/
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INTERNET_FLAG_KEEP_CONNECTION |
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INTERNET_FLAG_PRAGMA_NOCACHE |
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INTERNET_FLAG_RELOAD |
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INTERNET_FLAG_NO_CACHE_WRITE |
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INTERNET_FLAG_EXISTING_CONNECT | INTERNET_FLAG_PASSIVE;
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if (internet == 0)
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{
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HINSTANCE h = ws_load_library("wininet.dll");
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if (!h)
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{
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/* XXX - how to return an error code? */
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g_warning("Failed to load wininet.dll");
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return NULL;
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}
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/* pop-up dialup dialog box */
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/* XXX - do we need the dialup box or simply don't attempt an update in this case? */
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dw_ret = InternetAttemptConnect (0);
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if (dw_ret != ERROR_SUCCESS) {
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g_warning("InternetAttemptConnect failed: %u", dw_ret);
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return NULL;
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}
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internet = InternetOpen ("Wireshark Update", INTERNET_OPEN_TYPE_PRECONFIG,
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NULL, NULL, 0);
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if(internet == NULL) {
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g_warning("InternetOpen failed %u", GetLastError());
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return NULL;
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}
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}
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netio_ie5_conn = g_malloc(sizeof(netio_ie5_t));
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netio_ie5_conn->connection = InternetOpenUrl (internet, url, NULL, 0, flags, 0);
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try_again:
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#if 0
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/* XXX - implement this option */
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if (net_user && net_passwd)
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{
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InternetSetOption (connection, INTERNET_OPTION_USERNAME,
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net_user, strlen (net_user));
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InternetSetOption (connection, INTERNET_OPTION_PASSWORD,
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net_passwd, strlen (net_passwd));
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}
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#endif
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#if 0
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/* XXX - implement this option */
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if (net_proxy_user && net_proxy_passwd)
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{
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InternetSetOption (connection, INTERNET_OPTION_PROXY_USERNAME,
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net_proxy_user, strlen (net_proxy_user));
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InternetSetOption (connection, INTERNET_OPTION_PROXY_PASSWORD,
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net_proxy_passwd, strlen (net_proxy_passwd));
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}
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#endif
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if (resend)
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if (!HttpSendRequest (netio_ie5_conn->connection, 0, 0, 0, 0))
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netio_ie5_conn->connection = 0;
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if (!netio_ie5_conn->connection)
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{
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switch(GetLastError ()) {
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case ERROR_INTERNET_EXTENDED_ERROR:
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{
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char buf[2000];
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DWORD e, l = sizeof (buf);
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InternetGetLastResponseInfo (&e, buf, &l);
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MessageBox (0, buf, "Internet Error", 0);
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}
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break;
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case ERROR_INTERNET_NAME_NOT_RESOLVED:
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g_warning("Internet error: The servername could not be resolved");
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break;
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case ERROR_INTERNET_CANNOT_CONNECT:
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g_warning("Internet error: Could not connect to the server");
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break;
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default:
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g_warning("Internet error: %u", GetLastError ());
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}
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return NULL;
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}
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type_s = sizeof (type);
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InternetQueryOption (netio_ie5_conn->connection, INTERNET_OPTION_HANDLE_TYPE,
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&type, &type_s);
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switch (type)
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{
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case INTERNET_HANDLE_TYPE_HTTP_REQUEST:
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case INTERNET_HANDLE_TYPE_CONNECT_HTTP:
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type_s = sizeof (DWORD);
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if (HttpQueryInfo (netio_ie5_conn->connection,
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HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER,
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&type, &type_s, NULL))
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{
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if (type == 401) /* authorization required */
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{
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netio_ie5_flush_io (netio_ie5_conn);
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/* XXX - query net_user && net_passwd from user
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get_auth (NULL);*/
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resend = 1;
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goto try_again;
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}
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else if (type == 407) /* proxy authorization required */
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{
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netio_ie5_flush_io (netio_ie5_conn);
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/* XXX - query net_proxy_user && net_proxy_passwd from user
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get_proxy_auth (NULL);*/
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resend = 1;
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goto try_again;
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}
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else if (type >= 300)
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{
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g_warning("Failed with HTTP response %u", type);
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g_free(netio_ie5_conn);
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return NULL;
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}
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}
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}
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return netio_ie5_conn;
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}
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void
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netio_ie5_flush_io (netio_ie5_t * netio_e5_conn)
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{
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DWORD actual = 0;
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char buf[1024];
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do
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{
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InternetReadFile (netio_e5_conn->connection, buf, 1024, &actual);
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}
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while (actual > 0);
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}
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void
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netio_ie5_disconnect (netio_ie5_t * netio_e5_conn)
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{
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if (netio_e5_conn->connection)
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InternetCloseHandle (netio_e5_conn->connection);
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g_free(netio_e5_conn);
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}
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int
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netio_ie5_ok (netio_ie5_t * netio_e5_conn)
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{
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return (netio_e5_conn->connection == NULL) ? 0 : 1;
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}
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int
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netio_ie5_read (netio_ie5_t * netio_e5_conn, char *buf, int nbytes)
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{
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DWORD actual;
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if (InternetReadFile (netio_e5_conn->connection, buf, nbytes, &actual))
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return actual;
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return -1;
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}
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