- (dtucker) [configure.ac openbsd-compat/getrrsetbyname.c] Bug #1299: Use the

   platform's _res if it has one.  Should fix problem of DNSSEC record lookups
   on NetBSD as reported by Curt Sampson.

3 files changed, 27 insertions, 9 deletions

diff --git a/ChangeLog b/ChangeLog
index d83e12642..a2dc43022 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,6 +2,9 @@
  - (dtucker) [openbsd-compat/bsd-misc.c] Include unistd.h and sys/types.h
    for select(2) prototype.
  - (dtucker) [auth-shadow.c loginrec.c] Include time.h for time(2) prototype.
+ - (dtucker) [configure.ac openbsd-compat/getrrsetbyname.c] Bug #1299: Use the
+   platform's _res if it has one.  Should fix problem of DNSSEC record lookups
+   on NetBSD as reported by Curt Sampson.
 
 20070406
  - (dtucker) [INSTALL] Update the systems that have PAM as standard.  Link
@@ -2883,4 +2886,4 @@
    OpenServer 6 and add osr5bigcrypt support so when someone migrates
    passwords between UnixWare and OpenServer they will still work. OK dtucker@
 
-$Id: ChangeLog,v 1.4653 2007/04/29 02:10:57 dtucker Exp $
+$Id: ChangeLog,v 1.4654 2007/04/29 03:58:06 dtucker Exp $
diff --git a/configure.ac b/configure.ac
index 4413ae343..4d551b897 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-# $Id: configure.ac,v 1.375 2007/03/26 16:35:28 tim Exp $
+# $Id: configure.ac,v 1.376 2007/04/29 03:58:07 dtucker Exp $
 #
 # Copyright (c) 1999-2004 Damien Miller
 #
@@ -15,7 +15,7 @@
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 AC_INIT(OpenSSH, Portable, openssh-unix-dev@mindrot.org)
-AC_REVISION($Revision: 1.375 $)
+AC_REVISION($Revision: 1.376 $)
 AC_CONFIG_SRCDIR([ssh.c])
 
 AC_CONFIG_HEADER(config.h)
@@ -3154,6 +3154,25 @@ int main()
                         [#include <arpa/nameser.h>])
         ])
 
+AC_MSG_CHECKING(if struct __res_state _res is an extern)
+AC_LINK_IFELSE([
+#include <stdio.h>
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#include <netinet/in.h>
+#include <arpa/nameser.h>
+#include <resolv.h>
+extern struct __res_state _res;
+int main() { return 0; }
+                ],
+                [AC_MSG_RESULT(yes)
+                 AC_DEFINE(HAVE__RES_EXTERN, 1,
+                    [Define if you have struct __res_state _res as an extern])
+                ],
+                [ AC_MSG_RESULT(no) ]
+)
+
 # Check whether user wants SELinux support
 SELINUX_MSG="no"
 LIBSELINUX=""
diff --git a/openbsd-compat/getrrsetbyname.c b/openbsd-compat/getrrsetbyname.c
index 07231d005..80af3f542 100644
--- a/openbsd-compat/getrrsetbyname.c
+++ b/openbsd-compat/getrrsetbyname.c
@@ -67,13 +67,9 @@ extern int h_errno;
 #endif
 #define _THREAD_PRIVATE(a,b,c) (c)
 
-/* to avoid conflicts where a platform already has _res */
-#ifdef _res
-# undef _res
-#endif
-#define _res    _compat_res
-
+#ifndef HAVE__RES_EXTERN
 struct __res_state _res;
+#endif
 
 /* Necessary functions and macros */