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authorRene Mayrhofer <rene@mayrhofer.eu.org>2007-04-12 20:30:08 +0000
committerRene Mayrhofer <rene@mayrhofer.eu.org>2007-04-12 20:30:08 +0000
commitb0d8ed94fe9e74afb49fdf5f11e4add29879c65c (patch)
treeb20167235628771046e940a82a906a6d0991ee4a /src/libfreeswan/anyaddr.c
parentea939d07c84d2a8e51215458063fc05e9c399290 (diff)
downloadvyos-strongswan-b0d8ed94fe9e74afb49fdf5f11e4add29879c65c.tar.gz
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[svn-upgrade] Integrating new upstream version, strongswan (4.1.1)
Diffstat (limited to 'src/libfreeswan/anyaddr.c')
-rw-r--r--src/libfreeswan/anyaddr.c146
1 files changed, 146 insertions, 0 deletions
diff --git a/src/libfreeswan/anyaddr.c b/src/libfreeswan/anyaddr.c
new file mode 100644
index 000000000..08aae6334
--- /dev/null
+++ b/src/libfreeswan/anyaddr.c
@@ -0,0 +1,146 @@
+/*
+ * special addresses
+ * Copyright (C) 2000 Henry Spencer.
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version. See <http://www.fsf.org/copyleft/lgpl.txt>.
+ *
+ * This library 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 Library General Public
+ * License for more details.
+ *
+ * RCSID $Id: anyaddr.c,v 1.1 2004/03/15 20:35:25 as Exp $
+ */
+#include "internal.h"
+#include "freeswan.h"
+
+/* these are mostly fallbacks for the no-IPv6-support-in-library case */
+#ifndef IN6ADDR_ANY_INIT
+#define IN6ADDR_ANY_INIT {{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }}
+#endif
+#ifndef IN6ADDR_LOOPBACK_INIT
+#define IN6ADDR_LOOPBACK_INIT {{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 }}
+#endif
+
+static struct in6_addr v6any = IN6ADDR_ANY_INIT;
+static struct in6_addr v6loop = IN6ADDR_LOOPBACK_INIT;
+
+/*
+ - anyaddr - initialize to the any-address value
+ */
+err_t /* NULL for success, else string literal */
+anyaddr(af, dst)
+int af; /* address family */
+ip_address *dst;
+{
+ uint32_t v4any = htonl(INADDR_ANY);
+
+ switch (af) {
+ case AF_INET:
+ return initaddr((unsigned char *)&v4any, sizeof(v4any), af, dst);
+ break;
+ case AF_INET6:
+ return initaddr((unsigned char *)&v6any, sizeof(v6any), af, dst);
+ break;
+ default:
+ return "unknown address family in anyaddr/unspecaddr";
+ break;
+ }
+}
+
+/*
+ - unspecaddr - initialize to the unspecified-address value
+ */
+err_t /* NULL for success, else string literal */
+unspecaddr(af, dst)
+int af; /* address family */
+ip_address *dst;
+{
+ return anyaddr(af, dst);
+}
+
+/*
+ - loopbackaddr - initialize to the loopback-address value
+ */
+err_t /* NULL for success, else string literal */
+loopbackaddr(af, dst)
+int af; /* address family */
+ip_address *dst;
+{
+ uint32_t v4loop = htonl(INADDR_LOOPBACK);
+
+ switch (af) {
+ case AF_INET:
+ return initaddr((unsigned char *)&v4loop, sizeof(v4loop), af, dst);
+ break;
+ case AF_INET6:
+ return initaddr((unsigned char *)&v6loop, sizeof(v6loop), af, dst);
+ break;
+ default:
+ return "unknown address family in loopbackaddr";
+ break;
+ }
+}
+
+/*
+ - isanyaddr - test for the any-address value
+ */
+int
+isanyaddr(src)
+const ip_address *src;
+{
+ uint32_t v4any = htonl(INADDR_ANY);
+ int cmp;
+
+ switch (src->u.v4.sin_family) {
+ case AF_INET:
+ cmp = memcmp(&src->u.v4.sin_addr.s_addr, &v4any, sizeof(v4any));
+ break;
+ case AF_INET6:
+ cmp = memcmp(&src->u.v6.sin6_addr, &v6any, sizeof(v6any));
+ break;
+ default:
+ return 0;
+ break;
+ }
+
+ return (cmp == 0) ? 1 : 0;
+}
+
+/*
+ - isunspecaddr - test for the unspecified-address value
+ */
+int
+isunspecaddr(src)
+const ip_address *src;
+{
+ return isanyaddr(src);
+}
+
+/*
+ - isloopbackaddr - test for the loopback-address value
+ */
+int
+isloopbackaddr(src)
+const ip_address *src;
+{
+ uint32_t v4loop = htonl(INADDR_LOOPBACK);
+ int cmp;
+
+ switch (src->u.v4.sin_family) {
+ case AF_INET:
+ cmp = memcmp(&src->u.v4.sin_addr.s_addr, &v4loop, sizeof(v4loop));
+ break;
+ case AF_INET6:
+ cmp = memcmp(&src->u.v6.sin6_addr, &v6loop, sizeof(v6loop));
+ break;
+ default:
+ return 0;
+ break;
+ }
+
+ return (cmp == 0) ? 1 : 0;
+}