From: Guus Sliepen Date: Fri, 29 Jun 2001 13:09:32 +0000 (+0000) Subject: Log error if two hosts connect with same IP/port tuple. X-Git-Tag: release-1.0pre5~109 X-Git-Url: https://git.tinc-vpn.org/git/browse?a=commitdiff_plain;h=402b85c48284a06fbfc56aca102b33be3a4260b0;p=tinc Log error if two hosts connect with same IP/port tuple. --- diff --git a/src/protocol.c b/src/protocol.c index 17eb3bdf..8d87de16 100644 --- a/src/protocol.c +++ b/src/protocol.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: protocol.c,v 1.28.4.94 2001/06/09 10:00:34 guus Exp $ + $Id: protocol.c,v 1.28.4.95 2001/06/29 13:09:32 guus Exp $ */ #include "config.h" @@ -253,8 +253,14 @@ cp node = avl_unlink(connection_tree, cl); cl->port = port; - avl_insert_node(connection_tree, node); - + if(!avl_insert_node(connection_tree, node)) + { + old = avl_search_node(connection_tree, node)->data; + syslog(LOG_ERR, _("%s is listening on %s:%s, which is already in use by %s!"), + cl->name, cl->hostname, cl->port, old->name); + return -1; + } + /* Read in the public key, so that we can send a metakey */ if(read_rsa_public_key(cl))