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-rw-r--r--dso/win32/dso.c167
1 files changed, 167 insertions, 0 deletions
diff --git a/dso/win32/dso.c b/dso/win32/dso.c
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+++ b/dso/win32/dso.c
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+/* 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.
+ */
+
+#include "apr_arch_dso.h"
+#include "apr_strings.h"
+#include "apr_private.h"
+#include "apr_arch_file_io.h"
+#include "apr_arch_utf8.h"
+
+#if APR_HAS_DSO
+
+APR_DECLARE(apr_status_t) apr_os_dso_handle_put(apr_dso_handle_t **aprdso,
+ apr_os_dso_handle_t osdso,
+ apr_pool_t *pool)
+{
+ *aprdso = apr_pcalloc(pool, sizeof **aprdso);
+ (*aprdso)->handle = osdso;
+ (*aprdso)->cont = pool;
+ return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_os_dso_handle_get(apr_os_dso_handle_t *osdso,
+ apr_dso_handle_t *aprdso)
+{
+ *osdso = aprdso->handle;
+ return APR_SUCCESS;
+}
+
+static apr_status_t dso_cleanup(void *thedso)
+{
+ apr_dso_handle_t *dso = thedso;
+
+ if (dso->handle != NULL && !FreeLibrary(dso->handle)) {
+ return apr_get_os_error();
+ }
+ dso->handle = NULL;
+
+ return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_dso_load(struct apr_dso_handle_t **res_handle,
+ const char *path, apr_pool_t *ctx)
+{
+ HINSTANCE os_handle;
+ apr_status_t rv;
+#ifndef _WIN32_WCE
+ UINT em;
+#endif
+
+#if APR_HAS_UNICODE_FS
+ IF_WIN_OS_IS_UNICODE
+ {
+ apr_wchar_t wpath[APR_PATH_MAX];
+ if ((rv = utf8_to_unicode_path(wpath, sizeof(wpath)
+ / sizeof(apr_wchar_t), path))
+ != APR_SUCCESS) {
+ *res_handle = apr_pcalloc(ctx, sizeof(**res_handle));
+ return ((*res_handle)->load_error = rv);
+ }
+ /* Prevent ugly popups from killing our app */
+#ifndef _WIN32_WCE
+ em = SetErrorMode(SEM_FAILCRITICALERRORS);
+#endif
+ os_handle = LoadLibraryExW(wpath, NULL, 0);
+ if (!os_handle)
+ os_handle = LoadLibraryExW(wpath, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
+ if (!os_handle)
+ rv = apr_get_os_error();
+#ifndef _WIN32_WCE
+ SetErrorMode(em);
+#endif
+ }
+#endif /* APR_HAS_UNICODE_FS */
+#if APR_HAS_ANSI_FS
+ ELSE_WIN_OS_IS_ANSI
+ {
+ char fspec[APR_PATH_MAX], *p = fspec;
+ /* Must convert path from / to \ notation.
+ * Per PR2555, the LoadLibraryEx function is very picky about slashes.
+ * Debugging on NT 4 SP 6a reveals First Chance Exception within NTDLL.
+ * LoadLibrary in the MS PSDK also reveals that it -explicitly- states
+ * that backslashes must be used for the LoadLibrary family of calls.
+ */
+ apr_cpystrn(fspec, path, sizeof(fspec));
+ while ((p = strchr(p, '/')) != NULL)
+ *p = '\\';
+
+ /* Prevent ugly popups from killing our app */
+ em = SetErrorMode(SEM_FAILCRITICALERRORS);
+ os_handle = LoadLibraryEx(path, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
+ if (!os_handle)
+ os_handle = LoadLibraryEx(path, NULL, 0);
+ if (!os_handle)
+ rv = apr_get_os_error();
+ else
+ rv = APR_SUCCESS;
+ SetErrorMode(em);
+ }
+#endif
+
+ *res_handle = apr_pcalloc(ctx, sizeof(**res_handle));
+ (*res_handle)->cont = ctx;
+
+ if (rv) {
+ return ((*res_handle)->load_error = rv);
+ }
+
+ (*res_handle)->handle = (void*)os_handle;
+ (*res_handle)->load_error = APR_SUCCESS;
+
+ apr_pool_cleanup_register(ctx, *res_handle, dso_cleanup, apr_pool_cleanup_null);
+
+ return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_dso_unload(struct apr_dso_handle_t *handle)
+{
+ return apr_pool_cleanup_run(handle->cont, handle, dso_cleanup);
+}
+
+APR_DECLARE(apr_status_t) apr_dso_sym(apr_dso_handle_sym_t *ressym,
+ struct apr_dso_handle_t *handle,
+ const char *symname)
+{
+#ifdef _WIN32_WCE
+ apr_size_t symlen = strlen(symname) + 1;
+ apr_size_t wsymlen = 256;
+ apr_wchar_t wsymname[256];
+ apr_status_t rv;
+
+ rv = apr_conv_utf8_to_ucs2(wsymname, &wsymlen, symname, &symlen);
+ if (rv != APR_SUCCESS) {
+ return rv;
+ }
+ else if (symlen) {
+ return APR_ENAMETOOLONG;
+ }
+
+ *ressym = (apr_dso_handle_sym_t)GetProcAddressW(handle->handle, wsymname);
+#else
+ *ressym = (apr_dso_handle_sym_t)GetProcAddress(handle->handle, symname);
+#endif
+ if (!*ressym) {
+ return apr_get_os_error();
+ }
+ return APR_SUCCESS;
+}
+
+APR_DECLARE(const char *) apr_dso_error(apr_dso_handle_t *dso, char *buf, apr_size_t bufsize)
+{
+ return apr_strerror(dso->load_error, buf, bufsize);
+}
+
+#endif