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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;
DWORD em;
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 */
if (!SetThreadErrorMode(SEM_FAILCRITICALERRORS, &em)) {
*res_handle = apr_pcalloc(ctx, sizeof(**res_handle));
return ((*res_handle)->load_error = apr_get_os_error());
}
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();
os_handle = LoadLibraryExW(wpath, NULL, LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR);
if (os_handle) {
rv = APR_SUCCESS;
}
}
SetThreadErrorMode(em, NULL);
*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)
{
*ressym = (apr_dso_handle_sym_t)GetProcAddress(handle->handle, symname);
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
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