- djm@cvs.openbsd.org 2009/11/20 00:54:01

[openssh.git] / misc.c

diff --git a/misc.c b/misc.c
index 4dc152310055f0b4c106c89fe94c97e62a55423c..f0f1fd8416e7981f969f42dda448e74e16bd154e 100644 (file)
--- a/misc.c
+++ b/misc.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: misc.c,v 1.71 2009/02/21 19:32:04 tobias Exp $ */
+/* $OpenBSD: misc.c,v 1.72 2009/10/28 16:38:18 reyk Exp $ */
 /*
  * Copyright (c) 2000 Markus Friedl.  All rights reserved.
  * Copyright (c) 2005,2006 Damien Miller.  All rights reserved.
@@ -151,6 +151,43 @@ set_nodelay(int fd)
                error("setsockopt TCP_NODELAY: %.100s", strerror(errno));
 }
 
+/* open a socket in the specified routing domain */
+int
+socket_rdomain(int domain, int type, int protocol, int rdomain)
+{
+       int sock, ipproto = IPPROTO_IP;
+
+       if ((sock = socket(domain, type, protocol)) == -1)
+               return (-1);
+
+       if (rdomain == -1)
+               return (sock);
+       
+       switch (domain) {
+       case AF_INET6:
+               ipproto = IPPROTO_IPV6;
+               /* FALLTHROUGH */
+       case AF_INET:
+               debug2("socket %d af %d setting rdomain %d",
+                   sock, domain, rdomain);
+               if (setsockopt(sock, ipproto, SO_RDOMAIN, &rdomain,
+                   sizeof(rdomain)) == -1) {
+                       debug("setsockopt SO_RDOMAIN: %.100s",
+                           strerror(errno));
+                       close(sock);
+                       return (-1);
+               }
+               break;
+       default:
+               debug("socket %d af %d does not support rdomain %d",
+                   sock, domain, rdomain);
+               close(sock);
+               return (-1);
+       }
+
+       return (sock);
+}
+
 /* Characters considered whitespace in strsep calls. */
 #define WHITESPACE " \t\r\n"
 #define QUOTE  "\""