Unmap v4mapped sockaddrs.

[tinc] / src / netutl.c

diff --git a/src/netutl.c b/src/netutl.c
index ca3ea2d..95a168c 100644 (file)
--- a/src/netutl.c
+++ b/src/netutl.c
@@ -17,7 +17,7 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id: netutl.c,v 1.12.4.27 2002/02/20 22:37:38 guus Exp $
+    $Id: netutl.c,v 1.12.4.29 2002/03/17 15:59:29 guus Exp $
 */
 
 #include "config.h"
@@ -101,6 +101,7 @@ void sockaddr2str(sockaddr_t *sa, char **addrstr, char **portstr)
 {
   char address[NI_MAXHOST];
   char port[NI_MAXSERV];
+  char *scopeid;
   int err;
 cp
   if((err = getnameinfo(&sa->sa, SALEN(sa->sa), address, sizeof(address), port, sizeof(port), NI_NUMERICHOST|NI_NUMERICSERV)))
@@ -111,6 +112,11 @@ cp
       exit(0);
     }
 
+#ifdef HAVE_LINUX
+  if((scopeid = strchr(address, '%')))
+    *scopeid = '\0';  /* Descope. */
+#endif
+
   *addrstr = xstrdup(address);
   *portstr = xstrdup(port);
 cp
@@ -147,9 +153,15 @@ cp
       case AF_UNSPEC:
         return 0;
       case AF_INET:
-       return memcmp(&a->in, &b->in, sizeof(a->in));
+       result = memcmp(&a->in.sin_addr, &b->in.sin_addr, sizeof(a->in.sin_addr));
+       if(result)
+         return result;
+       return memcmp(&a->in.sin_port, &b->in.sin_port, sizeof(a->in.sin_port));
       case AF_INET6:
-       return memcmp(&a->in6, &b->in6, sizeof(a->in6));
+       result = memcmp(&a->in6.sin6_addr, &b->in6.sin6_addr, sizeof(a->in6.sin6_addr));
+       if(result)
+         return result;
+       return memcmp(&a->in6.sin6_port, &b->in6.sin6_port, sizeof(a->in6.sin6_port));
       default:
         syslog(LOG_ERR, _("sockaddrcmp() was called with unknown address family %d, exitting!"), a->sa.sa_family);
        cp_trace();
@@ -159,6 +171,15 @@ cp
 cp
 }
 
+void sockaddrunmap(sockaddr_t *sa)
+{
+  if(IN6_IS_ADDR_V4MAPPED(&sa->in6.sin6_addr))
+    {
+      sa->in.sin_addr.s_addr = sa->in6.sin6_addr.s6_addr32[3];
+      sa->in.sin_family = AF_INET;
+    }
+}
+
 /* Subnet mask handling */
 
 int maskcmp(char *a, char *b, int masklen, int len)