Adding upstream version 1.7.2.upstream/1.7.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 167 insertions, 0 deletions

diff --git a/dso/win32/dso.c b/dso/win32/dso.c
new file mode 100644
index 0000000..d4a6893
--- /dev/null
+++ b/dso/win32/dso.c
@@ -0,0 +1,167 @@
+/* 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