From: Ivo Timmermans <ivo@lychnis.net>
Date: Tue, 30 May 2000 11:18:12 +0000 (+0000)
Subject: Added new configuration directive `Hostnames', which controls the resolving of IP... 
X-Git-Tag: release-1.0pre2~9
X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=commitdiff_plain;h=f826301889e1fa1a22770919f0385c3ca04c740a;hp=a7ad161d2b115b6a2a69c5dc8ddd33008d3562d0;ds=sidebyside

Added new configuration directive `Hostnames', which controls the resolving of IP addresses to hostnames.
---

diff --git a/src/conf.c b/src/conf.c
index ed603701..35ca4d78 100644
--- a/src/conf.c
+++ b/src/conf.c
@@ -1,7 +1,9 @@
 /*
     conf.c -- configuration code
     Copyright (C) 1998 Emphyrio,
-    Copyright (C) 1998,1999,2000 Ivo Timmermans <zarq@iname.com>
+    Copyright (C) 1998,1999,2000 Ivo Timmermans <itimmermans@bigfoot.com>
+                            2000 Guus Sliepen <guus@sliepen.warande.net>
+			    2000 Cris van Pelt <tribbel@arise.dhs.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -16,10 +18,10 @@
     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    $Id: conf.c,v 1.9 2000/05/30 11:18:12 zarq Exp $
 */
 
-/* Created more dynamic storage for lines read from the config file. --
-	Cris van Pelt */
 
 #include "config.h"
 
@@ -62,6 +64,7 @@ static internal_config_t hazahaza[] = {
   { "TapDevice",    tapdevice,      TYPE_NAME },
   { "KeyExpire",    keyexpire,      TYPE_INT },
   { "VpnMask",      vpnmask,        TYPE_IP },
+  { "Hostnames",    resolve_dns,    TYPE_BOOL },
   { NULL, 0, 0 }
 };
 
diff --git a/src/conf.h b/src/conf.h
index 36a7bb8b..de3d583c 100644
--- a/src/conf.h
+++ b/src/conf.h
@@ -1,6 +1,7 @@
 /*
     conf.h -- header for conf.c
-    Copyright (C) 1998,1999,2000 Ivo Timmermans <zarq@iname.com>
+    Copyright (C) 1998,1999,2000 Ivo Timmermans <itimmermans@bigfoot.com>
+                            2000 Guus Sliepen <guus@sliepen.warande.net>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -15,6 +16,8 @@
     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    $Id: conf.h,v 1.6 2000/05/30 11:18:12 zarq Exp $
 */
 
 #ifndef __TINC_CONF_H__
@@ -41,7 +44,8 @@ typedef enum which_t {
   allowconnect,
   pingtimeout,
   keyexpire,
-  vpnmask
+  vpnmask,
+  resolve_dns
 } which_t;
 
 typedef struct config_t {
diff --git a/src/netutl.c b/src/netutl.c
index f49178bd..a61c9173 100644
--- a/src/netutl.c
+++ b/src/netutl.c
@@ -1,6 +1,6 @@
 /*
     netutl.c -- some supporting network utility code
-    Copyright (C) 1998,1999,2000 Ivo Timmermans <zarq@iname.com>
+    Copyright (C) 1998,1999,2000 Ivo Timmermans <itimmermans@bigfoot.com>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -15,6 +15,8 @@
     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    $Id: netutl.c,v 1.11 2000/05/30 11:18:12 zarq Exp $
 */
 
 #include "config.h"
@@ -31,6 +33,7 @@
 #include <utils.h>
 #include <xalloc.h>
 
+#include "conf.h"
 #include "encr.h"
 #include "net.h"
 #include "netutl.h"
@@ -166,20 +169,28 @@ char *hostlookup(unsigned long addr)
   char *name;
   struct hostent *host = NULL;
   struct in_addr in;
+  config_t const *cfg;
+  int lookup_hostname;
 cp
   in.s_addr = addr;
 
-  host = gethostbyaddr((char *)&in, sizeof(in), AF_INET);
+  lookup_hostname = 0;
+  if((cfg = get_config_val(resolve_dns)) != NULL)
+    if(cfg->data.val == stupid_true)
+      lookup_hostname = 1;
+
+  if(lookup_hostname)
+    host = gethostbyaddr((char *)&in, sizeof(in), AF_INET);
 
-  if(host)
+  if(!lookup_hostname || !host)
     {
-      name = xmalloc(strlen(host->h_name)+20);
-      sprintf(name, "%s (%s)", host->h_name, inet_ntoa(in));
+      name = xmalloc(20);
+      sprintf(name, "%s", inet_ntoa(in));
     }
   else
     {
-      name = xmalloc(20);
-      sprintf(name, "%s", inet_ntoa(in));
+      name = xmalloc(strlen(host->h_name)+20);
+      sprintf(name, "%s (%s)", host->h_name, inet_ntoa(in));
     }
 cp
   return name;