Initial import of mod_nss

1 files changed, 81 insertions, 0 deletions

diff --git a/nss_expr.c b/nss_expr.c
new file mode 100644
index 0000000..1e6e445
--- /dev/null
+++ b/nss_expr.c
@@ -0,0 +1,81 @@
+/* Copyright 2001-2004 The Apache Software Foundation
+ *
+ * Licensed 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.
+ */
+
+/*                      _             _
+ *  _ __ ___   ___   __| |    ___ ___| |  mod_ssl
+ * | '_ ` _ \ / _ \ / _` |   / __/ __| |  Apache Interface to OpenSSL
+ * | | | | | | (_) | (_| |   \__ \__ \ |
+ * |_| |_| |_|\___/ \__,_|___|___/___/_|
+ *                      |_____|
+ *  ssl_expr.c
+ *  Expression Handling
+ */
+                             /* ``It is hard to fly with
+                                  the eagles when you work
+                                  with the turkeys.''
+                                          -- Unknown  */
+#include "mod_nss.h"
+
+/*  _________________________________________________________________
+**
+**  Expression Handling
+**  _________________________________________________________________
+*/
+
+ssl_expr_info_type ssl_expr_info;
+char              *ssl_expr_error;
+
+ssl_expr *ssl_expr_comp(apr_pool_t *p, char *expr)
+{
+    ssl_expr_info.pool       = p;
+    ssl_expr_info.inputbuf   = expr;
+    ssl_expr_info.inputlen   = strlen(expr);
+    ssl_expr_info.inputptr   = ssl_expr_info.inputbuf;
+    ssl_expr_info.expr       = FALSE;
+
+    ssl_expr_error = NULL;
+    if (ssl_expr_yyparse())
+        return NULL;
+    return ssl_expr_info.expr;
+}
+
+char *ssl_expr_get_error(void)
+{
+    if (ssl_expr_error == NULL)
+        return "";
+    return ssl_expr_error;
+}
+
+ssl_expr *ssl_expr_make(ssl_expr_node_op op, void *a1, void *a2)
+{
+    ssl_expr *node;
+
+    node = (ssl_expr *)apr_palloc(ssl_expr_info.pool, sizeof(ssl_expr));
+    node->node_op   = op;
+    node->node_arg1 = (char *)a1;
+    node->node_arg2 = (char *)a2;
+    return node;
+}
+
+int ssl_expr_exec(request_rec *r, ssl_expr *expr)
+{
+    BOOL rc;
+
+    rc = ssl_expr_eval(r, expr);
+    if (ssl_expr_error != NULL)
+        return (-1);
+    else
+        return (rc ? 1 : 0);
+}