Added --allow-pull-fqdn option which allows client to pull DNS names

from server (rather than only IP address) for --ifconfig, --route, and
--route-gateway.  OpenVPN versions 2.1_rc7 and earlier allowed DNS names
for these options to be pulled and translated to IP addresses by default.
Now --allow-pull-fqdn will be explicitly required on the client to enable
DNS-name-to-IP-address translation of pulled options.


git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3307 e7ae566f-a301-0410-adde-c780ea21d3b5

1 files changed, 11 insertions, 0 deletions

diff --git a/socket.c b/socket.c
index a7ed55f..9622637 100644
--- a/socket.c
+++ b/socket.c
@@ -294,6 +294,17 @@ ip_addr_dotted_quad_safe (const char *dotted_quad)
   }
 }
 
+bool
+ip_or_dns_addr_safe (const char *dotted_quad, const bool allow_fqdn)
+{
+  if (ip_addr_dotted_quad_safe (dotted_quad))
+    return true;
+  else if (allow_fqdn)
+    return string_class (dotted_quad, CC_NAME|CC_DASH|CC_DOT, 0);
+  else
+    return false;
+}
+
 static void
 update_remote (const char* host,
 	       struct openvpn_sockaddr *addr,