add configure test for sockaddr_in.sin_len member

git-svn-id: svn://bind10.isc.org/svn/bind10/branches/f2f200910@237 e5f2f494-b856-4b98-b285-d166d9295462

configure.ac

@@ -20,6 +20,15 @@ AC_PROG_RANLIB
 AC_HEADER_STDBOOL
 AC_TYPE_SIZE_T
 
+AC_MSG_CHECKING(for sa_len in struct sockaddr)
+AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <sys/socket.h>],
+[struct sockaddr sa; sa.sa_len = 0; return (0);],
+        [AC_MSG_RESULT(yes)
+        AC_DEFINE(HAVE_SIN_LEN, 1, Define to 1 if sockaddr_in has a sin_len member)],
+        AC_MSG_RESULT(no))
+
 #
 # Check availablity of gtest, which might be used for unit tests.
 #

src/bin/parkinglot/Makefile.am

@@ -2,4 +2,4 @@ AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_srcdir)/ext
 
 bin_PROGRAMS = parkinglot
 parkinglot_SOURCES = common.cc main.cc
-parkinglot_LDADD = $(top_srcdir)/src/lib/dns/libdns.a
+parkinglot_LDADD = $(top_srcdir)/src/lib/dns/libdns.a $(top_srcdir)/src/lib/cc/cpp/libcc.a

src/lib/cc/cpp/session.cc

@@ -36,10 +36,14 @@ Session::establish()
     if (sock < -1)
         throw SessionError("socket() failed");
 
-    sin.sin_len = sizeof(struct sockaddr_in);
     sin.sin_family = AF_INET;
     sin.sin_port = htons(9912);
     sin.sin_addr.s_addr = INADDR_ANY;
+
+#ifdef HAVE_SIN_LEN
+    sin.sin_len = sizeof(struct sockaddr_in);
+#endif
+
     ret = connect(sock, (struct sockaddr *)&sin, sizeof(sin));
     if (ret < 0)
         throw SessionError("connect() failed");