1 files changed, 104 insertions, 0 deletions
diff --git a/misc/win32/apr_app.c b/misc/win32/apr_app.c
new file mode 100644
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--- /dev/null
+++ b/misc/win32/apr_app.c
@@ -0,0 +1,104 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* Usage Notes:
+ *
+ *   this module, and the misc/win32/utf8.c modules must be
+ *   compiled APR_EXPORT_STATIC and linked to an application with
+ *   the /entry:wmainCRTStartup flag (which this module kindly
+ *   provides to the developer who links to libaprapp-1.lib).
+ *   This module becomes the true wmain entry point, and passes
+ *   utf-8 reformatted argv and env arrays to the application's
+ *   main() function as if nothing happened.
+ *
+ *   This module is only compatible with Unicode operating systems.
+ *   Mixed (Win9x backwards compatible) binaries should refer instead
+ *   to the apr_startup.c module.
+ *
+ *   _dbg_malloc/realloc is used in place of the usual API, in order
+ *   to convince the MSVCRT that it created these entities.  If we
+ *   do not create them as _CRT_BLOCK entities, the crt will fault
+ *   on an assert.  We are not worrying about the crt's locks here, 
+ *   since we are single threaded [so far].
+ */
+
+#include "apr_general.h"
+#include "ShellAPI.h"
+#include "wchar.h"
+#include "apr_arch_file_io.h"
+#include "assert.h"
+#include "apr_private.h"
+#include "apr_arch_misc.h"
+
+#pragma comment(linker,"/ENTRY:wmainCRTStartup")
+
+extern int main(int argc, const char **argv, const char **env);
+
+int wmain(int argc, const wchar_t **wargv, const wchar_t **wenv)
+{
+    char **argv;
+    char **env;
+    int envc;
+    int i;
+
+    (void)apr_wastrtoastr(&argv, wargv, argc);
+
+    envc = 0;
+    while (wenv[envc]) {
+        envc++;
+    }
+
+    /* Initial environment stored as single heap block, but uses
+     * separate heap entry for every environment variable
+     * after first change.
+     */
+    env = apr_malloc_dbg((envc + 1) * sizeof(char *), __FILE__, __LINE__);
+
+    for (i = 0; i < envc; i++) {
+        apr_size_t wcount;
+        apr_size_t envlen;
+
+        wcount = wcslen(wenv[i]) + 1;
+        envlen = (wcount - 1) * 3 + 1;
+
+        env[i] = apr_malloc_dbg(envlen, __FILE__, __LINE__);
+
+        (void)apr_conv_ucs2_to_utf8(wenv[i], &wcount, env[i], &envlen);
+    }
+
+    env[i] = NULL;
+
+    _environ = env;
+
+    /* MSVCRT will attempt to maintain the wide environment calls
+     * on _putenv(), which is bogus if we've passed a non-ascii
+     * string to _putenv(), since they use MultiByteToWideChar
+     * and breaking the implicit utf-8 assumption we've built.
+     *
+     * Reset _wenviron for good measure.
+     */
+    if (_wenviron) {
+        _wenviron = NULL;
+
+        /* There is no need to free _wenviron because MSVCRT
+         * automatically free 'initial' environment block.
+         */
+    }
+
+    apr_app_init_complete = 1;
+
+    return main(argc, argv, env);
+}