| /* 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_portable.h" |
| #include "apr_strings.h" |
| #include "apr_arch_dso.h" |
| #include <errno.h> |
| #include <string.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)->pool = 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; |
| int rc; |
| |
| if (dso->handle == 0) |
| return APR_SUCCESS; |
| |
| rc = dllfree(dso->handle); |
| |
| if (rc == 0) { |
| dso->handle = 0; |
| return APR_SUCCESS; |
| } |
| dso->failing_errno = errno; |
| return errno; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_dso_load(apr_dso_handle_t **res_handle, |
| const char *path, apr_pool_t *ctx) |
| { |
| dllhandle *handle; |
| int rc; |
| |
| *res_handle = apr_pcalloc(ctx, sizeof(**res_handle)); |
| (*res_handle)->pool = ctx; |
| if ((handle = dllload(path)) != NULL) { |
| (*res_handle)->handle = handle; |
| apr_pool_cleanup_register(ctx, *res_handle, dso_cleanup, apr_pool_cleanup_null); |
| return APR_SUCCESS; |
| } |
| |
| (*res_handle)->failing_errno = errno; |
| return APR_EDSOOPEN; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_dso_unload(apr_dso_handle_t *handle) |
| { |
| return apr_pool_cleanup_run(handle->pool, handle, dso_cleanup); |
| } |
| |
| APR_DECLARE(apr_status_t) apr_dso_sym(apr_dso_handle_sym_t *ressym, |
| apr_dso_handle_t *handle, |
| const char *symname) |
| { |
| void *func_ptr; |
| void *var_ptr; |
| |
| if ((var_ptr = dllqueryvar(handle->handle, symname)) != NULL) { |
| *ressym = var_ptr; |
| return APR_SUCCESS; |
| } |
| if ((func_ptr = (void *)dllqueryfn(handle->handle, symname)) != NULL) { |
| *ressym = func_ptr; |
| return APR_SUCCESS; |
| } |
| handle->failing_errno = errno; |
| return APR_ESYMNOTFOUND; |
| } |
| |
| APR_DECLARE(const char *) apr_dso_error(apr_dso_handle_t *handle, char *buffer, |
| apr_size_t buflen) |
| { |
| apr_cpystrn(buffer, strerror(handle->failing_errno), buflen); |
| return buffer; |
| } |
| |
| #endif |