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-rw-r--r--ares/acinclude.m441
-rw-r--r--ares/configure.ac4
-rw-r--r--ares/m4/cares-functions.m4100
3 files changed, 142 insertions, 3 deletions
diff --git a/ares/acinclude.m4 b/ares/acinclude.m4
index 6594b6fb6..4c5e8c736 100644
--- a/ares/acinclude.m4
+++ b/ares/acinclude.m4
@@ -1670,6 +1670,47 @@ AC_DEFUN([CURL_CHECK_LIBS_CLOCK_GETTIME_MONOTONIC], [
])
+dnl CARES_CHECK_LIBS_CONNECT
+dnl -------------------------------------------------
+dnl Verify if network connect function is already available
+dnl using current libraries or if another one is required.
+
+AC_DEFUN([CARES_CHECK_LIBS_CONNECT], [
+ AC_MSG_CHECKING([for connect in libraries])
+ tst_connect_save_LIBS="$LIBS"
+ tst_connect_need_LIBS="unknown"
+ for tst_lib in '' '-lsocket' ; do
+ if test "$tst_connect_need_LIBS" = "unknown"; then
+ LIBS="$tst_lib $tst_connect_save_LIBS"
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[
+ ]],[[
+ if(0 != connect(0, 0, 0))
+ return 1;
+ ]])
+ ],[
+ tst_connect_need_LIBS="$tst_lib"
+ ])
+ fi
+ done
+ LIBS="$tst_connect_save_LIBS"
+ #
+ case X-"$tst_connect_need_LIBS" in
+ X-unknown)
+ AC_MSG_RESULT([cannot find connect])
+ AC_MSG_ERROR([cannot find connect function in libraries.])
+ ;;
+ X-)
+ AC_MSG_RESULT([yes])
+ ;;
+ *)
+ AC_MSG_RESULT([$tst_connect_need_LIBS])
+ LIBS="$tst_connect_need_LIBS $tst_connect_save_LIBS"
+ ;;
+ esac
+])
+
+
dnl CARES_DEFINE_UNQUOTED (VARIABLE, [VALUE])
dnl -------------------------------------------------
dnl Like AC_DEFINE_UNQUOTED this macro will define a C preprocessor
diff --git a/ares/configure.ac b/ares/configure.ac
index eda89eb09..6f32b9529 100644
--- a/ares/configure.ac
+++ b/ares/configure.ac
@@ -337,8 +337,7 @@ if test "$ac_cv_lib_resolve_strcasecmp" = "$ac_cv_func_strcasecmp"; then
fi
ac_cv_func_strcasecmp="no"
-dnl socket lib?
-AC_CHECK_FUNC(connect, , [ AC_CHECK_LIB(socket, connect) ])
+CARES_CHECK_LIBS_CONNECT
dnl **********************************************************************
dnl In case that function clock_gettime with monotonic timer is available,
@@ -537,6 +536,7 @@ CURL_CHECK_MSG_NOSIGNAL
CARES_CHECK_FUNC_CLOSESOCKET
CARES_CHECK_FUNC_CLOSESOCKET_CAMEL
+CARES_CHECK_FUNC_CONNECT
CARES_CHECK_FUNC_FCNTL
CARES_CHECK_FUNC_FREEADDRINFO
CARES_CHECK_FUNC_GETADDRINFO
diff --git a/ares/m4/cares-functions.m4 b/ares/m4/cares-functions.m4
index 1da3f5a53..695925a7c 100644
--- a/ares/m4/cares-functions.m4
+++ b/ares/m4/cares-functions.m4
@@ -16,7 +16,7 @@
#***************************************************************************
# File version for 'aclocal' use. Keep it a single number.
-# serial 31
+# serial 32
dnl CARES_INCLUDES_ARPA_INET
@@ -524,6 +524,104 @@ AC_DEFUN([CARES_CHECK_FUNC_CLOSESOCKET_CAMEL], [
])
+dnl CARES_CHECK_FUNC_CONNECT
+dnl -------------------------------------------------
+dnl Verify if connect is available, prototyped, and
+dnl can be compiled. If all of these are true, and
+dnl usage has not been previously disallowed with
+dnl shell variable cares_disallow_connect, then
+dnl HAVE_CONNECT will be defined.
+
+AC_DEFUN([CARES_CHECK_FUNC_CONNECT], [
+ AC_REQUIRE([CARES_INCLUDES_WINSOCK2])dnl
+ AC_REQUIRE([CARES_INCLUDES_SYS_SOCKET])dnl
+ AC_REQUIRE([CARES_INCLUDES_SOCKET])dnl
+ #
+ tst_links_connect="unknown"
+ tst_proto_connect="unknown"
+ tst_compi_connect="unknown"
+ tst_allow_connect="unknown"
+ #
+ AC_MSG_CHECKING([if connect can be linked])
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[
+ $cares_includes_winsock2
+ $cares_includes_sys_socket
+ $cares_includes_socket
+ ]],[[
+ if(0 != connect(0, 0, 0))
+ return 1;
+ ]])
+ ],[
+ AC_MSG_RESULT([yes])
+ tst_links_connect="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ tst_links_connect="no"
+ ])
+ #
+ if test "$tst_links_connect" = "yes"; then
+ AC_MSG_CHECKING([if connect is prototyped])
+ AC_EGREP_CPP([connect],[
+ $cares_includes_winsock2
+ $cares_includes_sys_socket
+ $cares_includes_socket
+ ],[
+ AC_MSG_RESULT([yes])
+ tst_proto_connect="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ tst_proto_connect="no"
+ ])
+ fi
+ #
+ if test "$tst_proto_connect" = "yes"; then
+ AC_MSG_CHECKING([if connect is compilable])
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+ $cares_includes_winsock2
+ $cares_includes_sys_socket
+ $cares_includes_socket
+ ]],[[
+ if(0 != connect(0, 0, 0))
+ return 1;
+ ]])
+ ],[
+ AC_MSG_RESULT([yes])
+ tst_compi_connect="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ tst_compi_connect="no"
+ ])
+ fi
+ #
+ if test "$tst_compi_connect" = "yes"; then
+ AC_MSG_CHECKING([if connect usage allowed])
+ if test "x$cares_disallow_connect" != "xyes"; then
+ AC_MSG_RESULT([yes])
+ tst_allow_connect="yes"
+ else
+ AC_MSG_RESULT([no])
+ tst_allow_connect="no"
+ fi
+ fi
+ #
+ AC_MSG_CHECKING([if connect might be used])
+ if test "$tst_links_connect" = "yes" &&
+ test "$tst_proto_connect" = "yes" &&
+ test "$tst_compi_connect" = "yes" &&
+ test "$tst_allow_connect" = "yes"; then
+ AC_MSG_RESULT([yes])
+ AC_DEFINE_UNQUOTED(HAVE_CONNECT, 1,
+ [Define to 1 if you have the connect function.])
+ ac_cv_func_connect="yes"
+ else
+ AC_MSG_RESULT([no])
+ ac_cv_func_connect="no"
+ fi
+])
+
+
dnl CARES_CHECK_FUNC_FCNTL
dnl -------------------------------------------------
dnl Verify if fcntl is available, prototyped, and