1 files changed, 132 insertions, 0 deletions
diff --git a/dso/os2/dso.c b/dso/os2/dso.c
new file mode 100644
index 0000000..1a7f7de
--- /dev/null
+++ b/dso/os2/dso.c
@@ -0,0 +1,132 @@
+/* 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_portable.h"
+#include <stdio.h>
+#include <string.h>
+
+#if APR_HAS_DSO
+
+static apr_status_t dso_cleanup(void *thedso)
+{
+    apr_dso_handle_t *dso = thedso;
+    int rc;
+
+    if (dso->handle == 0)
+        return APR_SUCCESS;
+       
+    rc = DosFreeModule(dso->handle);
+
+    if (rc == 0)
+        dso->handle = 0;
+
+    return APR_FROM_OS_ERROR(rc);
+}
+
+
+APR_DECLARE(apr_status_t) apr_dso_load(apr_dso_handle_t **res_handle, const char *path, apr_pool_t *ctx)
+{
+    char failed_module[200];
+    HMODULE handle;
+    int rc;
+
+    *res_handle = apr_pcalloc(ctx, sizeof(**res_handle));
+    (*res_handle)->cont = ctx;
+    (*res_handle)->load_error = APR_SUCCESS;
+    (*res_handle)->failed_module = NULL;
+
+    if ((rc = DosLoadModule(failed_module, sizeof(failed_module), path, &handle)) != 0) {
+        (*res_handle)->load_error = APR_FROM_OS_ERROR(rc);
+        (*res_handle)->failed_module = apr_pstrdup(ctx, failed_module);
+        return APR_FROM_OS_ERROR(rc);
+    }
+
+    (*res_handle)->handle  = handle;
+    apr_pool_cleanup_register(ctx, *res_handle, dso_cleanup, apr_pool_cleanup_null);
+    return APR_SUCCESS;
+}
+
+
+
+APR_DECLARE(apr_status_t) apr_dso_unload(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, 
+                                      apr_dso_handle_t *handle, 
+                                      const char *symname)
+{
+    PFN func;
+    int rc;
+
+    if (symname == NULL || ressym == NULL)
+        return APR_ESYMNOTFOUND;
+
+    if ((rc = DosQueryProcAddr(handle->handle, 0, symname, &func)) != 0) {
+        handle->load_error = APR_FROM_OS_ERROR(rc);
+        return handle->load_error;
+    }
+
+    *ressym = func;
+    return APR_SUCCESS;
+}
+
+
+
+APR_DECLARE(const char *) apr_dso_error(apr_dso_handle_t *dso, char *buffer, apr_size_t buflen)
+{
+    char message[200];
+    apr_strerror(dso->load_error, message, sizeof(message));
+
+    if (dso->failed_module != NULL) {
+        strcat(message, " (");
+        strcat(message, dso->failed_module);
+        strcat(message, ")");
+    }
+
+    apr_cpystrn(buffer, message, buflen);
+    return buffer;
+}
+
+
+
+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;
+    (*aprdso)->load_error = APR_SUCCESS;
+    (*aprdso)->failed_module = NULL;
+    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;
+}
+
+#endif