introduced a HAVE_SA_LEN macro to support OSes (other than linux) without length field in sockaddr_*

1 files changed, 68 insertions, 0 deletions

diff --git a/configure b/configure
index 14d0326..2a39af4 100755
--- a/configure
+++ b/configure
@@ -5397,6 +5397,74 @@ fi
 rm -f conftest.err conftest.$ac_objext conftest.$ac_ext;
 fi
 
+echo "$as_me:$LINENO: checking if you have a length field in struct sockaddr*" >&5
+echo $ECHO_N "checking if you have a length field in struct sockaddr*... $ECHO_C" >&6
+if test "${ts_cv_sa_len+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+   cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+ #include <sys/types.h>
+ #include <sys/socket.h>
+
+int
+main ()
+{
+
+ struct sockaddr a;
+ a.sa_len = 1;
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ts_cv_sa_len="yes"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ts_cv_sa_len="no"
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+
+echo "$as_me:$LINENO: result: $ts_cv_sa_len" >&5
+echo "${ECHO_T}$ts_cv_sa_len" >&6;
+if test "$ts_cv_sa_len" = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_SA_LEN 1
+_ACEOF
+
+fi
+
 
 for ac_header in stdarg.h
 do