[v9_9] add contrib/perftcpdns

3805.	[contrib]	Added contrib/perftcpdns, a performance testing tool
			for DNS over TCP. [RT #35710]

(cherry picked from commit 7cd8e7915a)

CHANGES

@@ -1,3 +1,6 @@
+3805.	[contrib]	Added contrib/perftcpdns, a performance testing tool
+			for DNS over TCP. [RT #35710]
+
 3804.	[bug]		Corrected a race condition in dispatch.c in which
 			portentry could be reset leading to an assertion
 			failure in socket_search(). (Change #3708

contrib/README

@@ -0,0 +1,57 @@
+This directory contains contributed scripts, tools, libraries,
+and other useful additions to BIND 9. It includes:
+
+    - scripts/
+
+      Assorted useful scripts, including 'nanny' which monitors 
+      named and restarts it in the event of a crash, 'zone-edit'
+      which enables editing of a dynamic zone, and others
+
+    - queryperf/
+
+      A DNS query performance testing tool
+
+    - perftcpdns/
+
+      A performance testing tool for DNS over TCP
+
+    - dane/
+
+      mkdane.sh generates TLSA records for use with DNS-based
+      Authentication of Named Entities (DANE)
+
+    - dlz/modules
+
+      Dynamically linkable DLZ modules that can be configured into
+      named at runtime, enabling access to external data sources including
+      LDAP, MySQL, Berkeley DB, perl scripts, etc
+
+    - dlz/drivers
+
+      Old-style DLZ drivers that can be linked into named at compile
+      time.  (These are no longer actively maintained and are expected
+      to be deprecated eventually.)
+
+    - sdb/
+
+      SDB drivers: another mechanism for accessing external data
+      sources
+
+    - idn/
+
+      Contains source for 'idnkit', which provides support for
+      Internationalized Domain Name processing.
+
+    - nslint-3.0a2
+
+      A lint-like tool for checking DNS files
+
+    - query-loc-0.4.0
+
+      A tool for retrieving location information stored in the DNS
+
+    - zkt-1.1.2
+
+      DNSSEC Zone Key Tools, an alternate method for managing keys
+      and signatures
+

contrib/perftcpdns/Makefile.in

@@ -0,0 +1,21 @@
+# Copyright (C) 2014  Internet Systems Consortium, Inc. ("ISC")
+
+CC = @CC@
+LIBOBJS = @LIBOBJS@
+LIBS = @LIBS@
+DEFS = @DEFS@
+
+perftcpdns: perftcpdns.o $(LIBOBJS)
+	$(CC) $(CFLAGS) $(DEFS) $(LDFLAGS) perftcpdns.o $(LIBOBJS) $(LIBS) -o perftcpdns
+
+perftcpdns.o: perftcpdns.c
+	$(CC) $(CFLAGS) $(DEFS) -c perftcpdns.c
+
+clean:
+	rm -f *.o perftcpdns
+
+distclean: clean
+	rm -f config.log
+	rm -f config.cache
+	rm -f config.status
+	rm -f Makefile

contrib/perftcpdns/configure.in

@@ -0,0 +1,61 @@
+# Copyright (C) 2014  Internet Systems Consortium, Inc. ("ISC")
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
+# DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+# INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
+# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+# FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+# WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+#
+
+AC_INIT(perftcpdns.c)
+
+AC_PREREQ(2.13)
+
+AC_PROG_CC
+
+AC_CHECK_LIB(m, sqrt)
+
+case "$host" in
+        *-freebsd*)
+                # We don't want to set -lpthread as that break
+                # the ability to choose threads library at final
+                # link time and is not valid for all architectures.
+                
+                PTHREAD=
+                if test "X$GCC" = "Xyes"; then
+                        saved_cc="$CC"
+                        CC="$CC -pthread"
+                        AC_MSG_CHECKING(for gcc -pthread support);
+                        AC_TRY_LINK([#include <pthread.h>],
+                                    [printf("%x\n", pthread_create);],
+                                    PTHREAD="yes"
+                                    AC_MSG_RESULT(yes),
+                                    AC_MSG_RESULT(no))
+                        CC="$saved_cc"
+                fi
+                if test "X$PTHREAD" != "Xyes"; then
+                        AC_CHECK_LIB(pthread, pthread_create,,
+                        AC_CHECK_LIB(thr, thread_create,,
+                        AC_CHECK_LIB(c_r, pthread_create,,
+                        AC_CHECK_LIB(c, pthread_create,,
+                        AC_MSG_ERROR("could not find thread libraries")))))
+                fi
+                ;;
+        *)
+                AC_CHECK_LIB(pthread, pthread_create,,
+                        AC_CHECK_LIB(pthread, __pthread_create,,
+                        AC_CHECK_LIB(pthread, __pthread_create_system,,
+                        AC_CHECK_LIB(c_r, pthread_create,,
+                        AC_CHECK_LIB(c, pthread_create,,
+                        AC_MSG_ERROR("could not find thread libraries"))))))
+        ;;
+esac
+
+AC_OUTPUT(Makefile)