1/* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements.  See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License.  You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17/* Usage Notes:
18 *
19 *   this module, and the misc/win32/utf8.c modules must be
20 *   compiled APR_EXPORT_STATIC and linked to an application with
21 *   the /entry:wmainCRTStartup flag (which this module kindly
22 *   provides to the developer who links to libaprapp-1.lib).
23 *   This module becomes the true wmain entry point, and passes
24 *   utf-8 reformatted argv and env arrays to the application's
25 *   main() function as if nothing happened.
26 *
27 *   This module is only compatible with Unicode operating systems.
28 *   Mixed (Win9x backwards compatible) binaries should refer instead
29 *   to the apr_startup.c module.
30 *
31 *   _dbg_malloc/realloc is used in place of the usual API, in order
32 *   to convince the MSVCRT that it created these entities.  If we
33 *   do not create them as _CRT_BLOCK entities, the crt will fault
34 *   on an assert.  We are not worrying about the crt's locks here,
35 *   since we are single threaded [so far].
36 */
37
38#include "apr_general.h"
39#include "ShellAPI.h"
40#include "wchar.h"
41#include "apr_arch_file_io.h"
42#include "assert.h"
43#include "apr_private.h"
44#include "apr_arch_misc.h"
45
46#pragma comment(linker,"/ENTRY:wmainCRTStartup")
47
48extern int main(int argc, const char **argv, const char **env);
49
50int wmain(int argc, const wchar_t **wargv, const wchar_t **wenv)
51{
52    char **argv;
53    char **env;
54    int dupenv;
55
56    (void)apr_wastrtoastr(&argv, wargv, argc);
57
58    dupenv = apr_wastrtoastr(&env, wenv, -1);
59
60    _environ = apr_malloc_dbg((dupenv + 1) * sizeof (char *),
61                              __FILE__, __LINE__ );
62    memcpy(_environ, env, (dupenv + 1) * sizeof (char *));
63
64    /* MSVCRT will attempt to maintain the wide environment calls
65     * on _putenv(), which is bogus if we've passed a non-ascii
66     * string to _putenv(), since they use MultiByteToWideChar
67     * and breaking the implicit utf-8 assumption we've built.
68     *
69     * Reset _wenviron for good measure.
70     */
71    if (_wenviron) {
72        wenv = _wenviron;
73        _wenviron = NULL;
74        free((wchar_t **)wenv);
75    }
76
77    apr_app_init_complete = 1;
78
79    return main(argc, argv, env);
80}
81