X-Git-Url: https://git.distorted.org.uk/~mdw/tripe/blobdiff_plain/c8e02c8a4947afa4f9ac20e78a3c8808b3945804..HEAD:/server/addrmap.c

diff --git a/server/addrmap.c b/server/addrmap.c
index 0ab72e97..76a358ea 100644
--- a/server/addrmap.c
+++ b/server/addrmap.c
@@ -9,19 +9,18 @@
  *
  * This file is part of Trivial IP Encryption (TrIPE).
  *
- * TrIPE is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * TrIPE is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 3 of the License, or (at your
+ * option) any later version.
  *
- * TrIPE is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
+ * TrIPE is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with TrIPE; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * along with TrIPE.  If not, see <https://www.gnu.org/licenses/>.
  */
 
 /*----- Header files ------------------------------------------------------*/
@@ -73,13 +72,23 @@ void am_destroy(addrmap *m)
  * Returns:	The hash of the address.
  */
 
-uint32 hash(const addr *a)
+static uint32 hash(const addr *a)
 {
+  size_t i;
+  uint32 h;
+
   switch (a->sa.sa_family) {
     case AF_INET:
-      return (U32((AF_INET * 0x4eaac1b7ul) +
-		  (a->sin.sin_addr.s_addr * 0xa5dbc837) +
-		  (a->sin.sin_port * 0x3b049e83)));
+      return (U32(0x4eaac1b7ul*AF_INET +
+		  0xa5dbc837ul*a->sin.sin_addr.s_addr +
+		  0x3b049e83ul*a->sin.sin_port));
+    case AF_INET6:
+      for (i = 0, h = 0; i < 16; i++)
+	h = 0x6bd26a67ul*h + a->sin6.sin6_addr.s6_addr[i];
+      return (U32(0x4eaac1b7ul*AF_INET6 +
+		  0xa5dbc837ul*h +
+		  0x1d94eab4ul*a->sin6.sin6_scope_id +
+		  0x3b049e83ul*a->sin6.sin6_port));
     default:
       abort();
   }
@@ -92,7 +101,7 @@ uint32 hash(const addr *a)
  * Returns:	Nonzero if the addresses are equal.
  */
 
-int addreq(const addr *a, const addr *b)
+static int addreq(const addr *a, const addr *b)
 {
   if (a->sa.sa_family != b->sa.sa_family)
     return (0);
@@ -100,6 +109,10 @@ int addreq(const addr *a, const addr *b)
     case AF_INET:
       return (a->sin.sin_addr.s_addr == b->sin.sin_addr.s_addr &&
 	      a->sin.sin_port == b->sin.sin_port);
+    case AF_INET6:
+      return (!memcmp(a->sin6.sin6_addr.s6_addr,
+		      b->sin6.sin6_addr.s6_addr, 16) &&
+	      a->sin6.sin6_port == b->sin6.sin6_port);
     default:
       abort();
   }