--- /dev/null
+/*
+ * gmodule.c: dl* functions, glib style
+ *
+ * Author:
+ * Gonzalo Paniagua Javier (gonzalo@novell.com)
+ * Jonathan Chambers (joncham@gmail.com)
+ * Robert Jordan (robertj@gmx.net)
+ *
+ * (C) 2006 Novell, Inc.
+ * (C) 2006 Jonathan Chambers
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include <config.h>
+#include <glib.h>
+#include <windows.h>
+#include <psapi.h>
+#include <gmodule-win32-internals.h>
+
+#define LIBSUFFIX ".dll"
+#define LIBPREFIX ""
+
+struct _GModule {
+ HMODULE handle;
+ int main_module;
+};
+
+GModule *
+g_module_open (const gchar *file, GModuleFlags flags)
+{
+ GModule *module;
+ module = g_malloc (sizeof (GModule));
+ if (module == NULL)
+ return NULL;
+
+ if (file != NULL) {
+ gunichar2 *file16;
+ file16 = u8to16(file);
+ module->main_module = FALSE;
+ module->handle = LoadLibraryW (file16);
+ g_free(file16);
+ if (!module->handle) {
+ g_free (module);
+ return NULL;
+ }
+
+ } else {
+ module->main_module = TRUE;
+ module->handle = GetModuleHandle (NULL);
+ }
+
+ return module;
+}
+
+#if G_HAVE_API_SUPPORT(HAVE_CLASSIC_WINAPI_SUPPORT)
+gpointer
+w32_find_symbol (const gchar *symbol_name)
+{
+ HMODULE *modules;
+ DWORD buffer_size = sizeof (HMODULE) * 1024;
+ DWORD needed, i;
+
+ modules = (HMODULE *) g_malloc (buffer_size);
+
+ if (modules == NULL)
+ return NULL;
+
+ if (!EnumProcessModules (GetCurrentProcess (), modules,
+ buffer_size, &needed)) {
+ g_free (modules);
+ return NULL;
+ }
+
+ /* check whether the supplied buffer was too small, realloc, retry */
+ if (needed > buffer_size) {
+ g_free (modules);
+
+ buffer_size = needed;
+ modules = (HMODULE *) g_malloc (buffer_size);
+
+ if (modules == NULL)
+ return NULL;
+
+ if (!EnumProcessModules (GetCurrentProcess (), modules,
+ buffer_size, &needed)) {
+ g_free (modules);
+ return NULL;
+ }
+ }
+
+ for (i = 0; i < needed / sizeof (HANDLE); i++) {
+ gpointer proc = (gpointer)(intptr_t)GetProcAddress (modules [i], symbol_name);
+ if (proc != NULL) {
+ g_free (modules);
+ return proc;
+ }
+ }
+
+ g_free (modules);
+ return NULL;
+}
+#endif /* G_HAVE_API_SUPPORT(HAVE_CLASSIC_WINAPI_SUPPORT) */
+
+gboolean
+g_module_symbol (GModule *module, const gchar *symbol_name, gpointer *symbol)
+{
+ if (module == NULL || symbol_name == NULL || symbol == NULL)
+ return FALSE;
+
+ if (module->main_module) {
+ *symbol = (gpointer)(intptr_t)GetProcAddress (module->handle, symbol_name);
+ if (*symbol != NULL)
+ return TRUE;
+
+ *symbol = w32_find_symbol (symbol_name);
+ return *symbol != NULL;
+ } else {
+ *symbol = (gpointer)(intptr_t)GetProcAddress (module->handle, symbol_name);
+ return *symbol != NULL;
+ }
+}
+
+#if G_HAVE_API_SUPPORT(HAVE_CLASSIC_WINAPI_SUPPORT)
+const gchar *
+g_module_error (void)
+{
+ gchar* ret = NULL;
+ TCHAR* buf = NULL;
+ DWORD code = GetLastError ();
+
+ /* FIXME: buf must not be NULL! */
+ FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER, NULL,
+ code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), buf, 0, NULL);
+
+ ret = u16to8 (buf);
+ LocalFree(buf);
+
+ return ret;
+}
+#endif /* G_HAVE_API_SUPPORT(HAVE_CLASSIC_WINAPI_SUPPORT) */
+
+gboolean
+g_module_close (GModule *module)
+{
+ HMODULE handle;
+ int main_module;
+
+ if (module == NULL || module->handle == NULL)
+ return FALSE;
+
+ handle = module->handle;
+ main_module = module->main_module;
+ module->handle = NULL;
+ g_free (module);
+ return (main_module ? 1 : (0 == FreeLibrary (handle)));
+}
+
+gchar *
+g_module_build_path (const gchar *directory, const gchar *module_name)
+{
+ char *lib_prefix = "";
+
+ if (module_name == NULL)
+ return NULL;
+
+ if (strncmp (module_name, "lib", 3) != 0)
+ lib_prefix = LIBPREFIX;
+
+ if (directory && *directory){
+
+ return g_strdup_printf ("%s/%s%s" LIBSUFFIX, directory, lib_prefix, module_name);
+ }
+ return g_strdup_printf ("%s%s" LIBSUFFIX, lib_prefix, module_name);
+}
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