diff options
Diffstat (limited to 'dso/win32/dso.c')
| -rw-r--r-- | dso/win32/dso.c | 167 |
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 |