SPDX: Mass-update to GPL-2.0-or-later

[exim.git] / src / src / tree.c

diff --git a/src/src/tree.c b/src/src/tree.c
index 3b6c3603b0f0770ff5fc0d761f9dced6c757c762..13fc28cc2414df21d1f1c80128b5c14b08641433 100644 (file)
--- a/src/src/tree.c
+++ b/src/src/tree.c
@@ -2,8 +2,10 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
+/* Copyright (c) The Exim Maintainers 2021 - 2022 */
 /* Copyright (c) University of Cambridge 1995 - 2015 */
 /* See the file NOTICE for conditions of use and distribution. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /* Functions for maintaining binary balanced trees and some associated
 functions as well. */
@@ -27,12 +29,13 @@ Returns:  nothing
 */
 
 void
-tree_add_nonrecipient(uschar *s)
+tree_add_nonrecipient(const uschar *s)
 {
-tree_node *node = store_get(sizeof(tree_node) + Ustrlen(s));
+rmark rpoint = store_mark();
+tree_node * node = store_get(sizeof(tree_node) + Ustrlen(s), s);
 Ustrcpy(node->name, s);
 node->data.ptr = NULL;
-if (!tree_insertnode(&tree_nonrecipients, node)) store_reset(node);
+if (!tree_insertnode(&tree_nonrecipients, node)) store_reset(rpoint);
 }
 
 
@@ -51,12 +54,13 @@ Returns:  nothing
 */
 
 void
-tree_add_duplicate(uschar *s, address_item *addr)
+tree_add_duplicate(const uschar *s, address_item *addr)
 {
-tree_node *node = store_get(sizeof(tree_node) + Ustrlen(s));
+rmark rpoint = store_mark();
+tree_node * node = store_get(sizeof(tree_node) + Ustrlen(s), s);
 Ustrcpy(node->name, s);
 node->data.ptr = addr;
-if (!tree_insertnode(&tree_duplicates, node)) store_reset(node);
+if (!tree_insertnode(&tree_duplicates, node)) store_reset(rpoint);
 }
 
 
@@ -72,16 +76,18 @@ Returns:     nothing
 */
 
 void
-tree_add_unusable(host_item *h)
+tree_add_unusable(const host_item *h)
 {
+rmark rpoint = store_mark();
 tree_node *node;
 uschar s[256];
 sprintf(CS s, "T:%.200s:%s", h->name, h->address);
-node = store_get(sizeof(tree_node) + Ustrlen(s));
+node = store_get(sizeof(tree_node) + Ustrlen(s),
+           is_tainted(h->name) || is_tainted(h->address) ? GET_TAINTED : GET_UNTAINTED);
 Ustrcpy(node->name, s);
 node->data.val = h->why;
 if (h->status == hstatus_unusable_expired) node->data.val += 256;
-if (!tree_insertnode(&tree_unusable, node)) store_reset(node);
+if (!tree_insertnode(&tree_unusable, node)) store_reset(rpoint);
 }
 
 
@@ -362,4 +368,27 @@ tree_walk(p->right, f, ctx);
 }
 
 
+
+/* Add a node to a tree, ignoring possibility of duplicates */
+
+static void
+tree_add_var(uschar * name, uschar * val, void * ctx)
+{
+tree_node ** root = ctx;
+tree_node * node = store_get(sizeof(tree_node) + Ustrlen(name), name);
+Ustrcpy(node->name, name);
+node->data.ptr = val;
+(void) tree_insertnode(root, node);
+}
+
+/* Duplicate a tree */
+
+void
+tree_dup(tree_node ** dstp, tree_node * src)
+{
+tree_walk(src, tree_add_var, dstp);
+}
+
+
+
 /* End of tree.c */