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check for gethostbyaddr and gethostbyname as it is done for other functions

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This commit is contained in:
Yang Tse
2008-11-18 01:57:29 +00:00
parent b0b6a7c8aa
commit d3609a98e5
2 changed files with 192 additions and 4 deletions
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190
m4/cares-functions.m4
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@ -16,7 +16,7 @@
#***************************************************************************
# File version for 'aclocal' use. Keep it a single number.
# serial 25
# serial 26
dnl CARES_INCLUDES_ARPA_INET
@ -667,6 +667,194 @@ AC_DEFUN([CARES_CHECK_FUNC_GETADDRINFO], [
])
dnl CARES_CHECK_FUNC_GETHOSTBYADDR
dnl -------------------------------------------------
dnl Verify if gethostbyaddr is available, prototyped,
dnl and can be compiled. If all of these are true,
dnl and usage has not been previously disallowed with
dnl shell variable cares_disallow_gethostbyaddr, then
dnl HAVE_GETHOSTBYADDR will be defined.
AC_DEFUN([CARES_CHECK_FUNC_GETHOSTBYADDR], [
AC_REQUIRE([CARES_INCLUDES_WINSOCK2])dnl
AC_REQUIRE([CARES_INCLUDES_NETDB])dnl
#
tst_links_gethostbyaddr="unknown"
tst_proto_gethostbyaddr="unknown"
tst_compi_gethostbyaddr="unknown"
tst_allow_gethostbyaddr="unknown"
#
AC_MSG_CHECKING([if gethostbyaddr can be linked])
AC_LINK_IFELSE([
AC_LANG_PROGRAM([[
$cares_includes_winsock2
$cares_includes_netdb
]],[[
if(0 != gethostbyaddr(0, 0, 0))
return 1;
]])
],[
AC_MSG_RESULT([yes])
tst_links_gethostbyaddr="yes"
],[
AC_MSG_RESULT([no])
tst_links_gethostbyaddr="no"
])
#
if test "$tst_links_gethostbyaddr" = "yes"; then
AC_MSG_CHECKING([if gethostbyaddr is prototyped])
AC_EGREP_CPP([gethostbyaddr],[
$cares_includes_winsock2
$cares_includes_netdb
],[
AC_MSG_RESULT([yes])
tst_proto_gethostbyaddr="yes"
],[
AC_MSG_RESULT([no])
tst_proto_gethostbyaddr="no"
])
fi
#
if test "$tst_proto_gethostbyaddr" = "yes"; then
AC_MSG_CHECKING([if gethostbyaddr is compilable])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
$cares_includes_winsock2
$cares_includes_netdb
]],[[
if(0 != gethostbyaddr(0, 0, 0))
return 1;
]])
],[
AC_MSG_RESULT([yes])
tst_compi_gethostbyaddr="yes"
],[
AC_MSG_RESULT([no])
tst_compi_gethostbyaddr="no"
])
fi
#
if test "$tst_compi_gethostbyaddr" = "yes"; then
AC_MSG_CHECKING([if gethostbyaddr usage allowed])
if test "x$cares_disallow_gethostbyaddr" != "xyes"; then
AC_MSG_RESULT([yes])
tst_allow_gethostbyaddr="yes"
else
AC_MSG_RESULT([no])
tst_allow_gethostbyaddr="no"
fi
fi
#
AC_MSG_CHECKING([if gethostbyaddr might be used])
if test "$tst_links_gethostbyaddr" = "yes" &&
test "$tst_proto_gethostbyaddr" = "yes" &&
test "$tst_compi_gethostbyaddr" = "yes" &&
test "$tst_allow_gethostbyaddr" = "yes"; then
AC_MSG_RESULT([yes])
AC_DEFINE_UNQUOTED(HAVE_GETHOSTBYADDR, 1,
[Define to 1 if you have the gethostbyaddr function.])
ac_cv_func_gethostbyaddr="yes"
else
AC_MSG_RESULT([no])
ac_cv_func_gethostbyaddr="no"
fi
])
dnl CARES_CHECK_FUNC_GETHOSTBYNAME
dnl -------------------------------------------------
dnl Verify if gethostbyname is available, prototyped,
dnl and can be compiled. If all of these are true,
dnl and usage has not been previously disallowed with
dnl shell variable cares_disallow_gethostbyname, then
dnl HAVE_GETHOSTBYNAME will be defined.
AC_DEFUN([CARES_CHECK_FUNC_GETHOSTBYNAME], [
AC_REQUIRE([CARES_INCLUDES_WINSOCK2])dnl
AC_REQUIRE([CARES_INCLUDES_NETDB])dnl
#
tst_links_gethostbyname="unknown"
tst_proto_gethostbyname="unknown"
tst_compi_gethostbyname="unknown"
tst_allow_gethostbyname="unknown"
#
AC_MSG_CHECKING([if gethostbyname can be linked])
AC_LINK_IFELSE([
AC_LANG_PROGRAM([[
$cares_includes_winsock2
$cares_includes_netdb
]],[[
if(0 != gethostbyname(0))
return 1;
]])
],[
AC_MSG_RESULT([yes])
tst_links_gethostbyname="yes"
],[
AC_MSG_RESULT([no])
tst_links_gethostbyname="no"
])
#
if test "$tst_links_gethostbyname" = "yes"; then
AC_MSG_CHECKING([if gethostbyname is prototyped])
AC_EGREP_CPP([gethostbyname],[
$cares_includes_winsock2
$cares_includes_netdb
],[
AC_MSG_RESULT([yes])
tst_proto_gethostbyname="yes"
],[
AC_MSG_RESULT([no])
tst_proto_gethostbyname="no"
])
fi
#
if test "$tst_proto_gethostbyname" = "yes"; then
AC_MSG_CHECKING([if gethostbyname is compilable])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
$cares_includes_winsock2
$cares_includes_netdb
]],[[
if(0 != gethostbyname(0))
return 1;
]])
],[
AC_MSG_RESULT([yes])
tst_compi_gethostbyname="yes"
],[
AC_MSG_RESULT([no])
tst_compi_gethostbyname="no"
])
fi
#
if test "$tst_compi_gethostbyname" = "yes"; then
AC_MSG_CHECKING([if gethostbyname usage allowed])
if test "x$cares_disallow_gethostbyname" != "xyes"; then
AC_MSG_RESULT([yes])
tst_allow_gethostbyname="yes"
else
AC_MSG_RESULT([no])
tst_allow_gethostbyname="no"
fi
fi
#
AC_MSG_CHECKING([if gethostbyname might be used])
if test "$tst_links_gethostbyname" = "yes" &&
test "$tst_proto_gethostbyname" = "yes" &&
test "$tst_compi_gethostbyname" = "yes" &&
test "$tst_allow_gethostbyname" = "yes"; then
AC_MSG_RESULT([yes])
AC_DEFINE_UNQUOTED(HAVE_GETHOSTBYNAME, 1,
[Define to 1 if you have the gethostbyname function.])
ac_cv_func_gethostbyname="yes"
else
AC_MSG_RESULT([no])
ac_cv_func_gethostbyname="no"
fi
])
dnl CARES_CHECK_FUNC_GETHOSTNAME
dnl -------------------------------------------------
dnl Verify if gethostname is available, prototyped, and