| /* 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 |