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improve detection of gethostbyaddr_r() and gethostbyname_r()

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This commit is contained in:
Yang Tse
2008-09-17 16:03:49 +00:00
parent 0c1ae21c11
commit d84440d53b
3 changed files with 288 additions and 420 deletions
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284
m4/curl-functions.m4
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@@ -374,6 +374,290 @@ AC_DEFUN([CURL_CHECK_FUNC_FTRUNCATE], [
])
dnl CURL_CHECK_FUNC_GETHOSTBYADDR_R
dnl -------------------------------------------------
dnl Verify if gethostbyaddr_r is available, prototyped,
dnl and can be compiled. If all of these are true, and
dnl usage has not been previously disallowed with
dnl shell variable curl_disallow_gethostbyaddr_r, then
dnl HAVE_GETHOSTBYADDR_R will be defined.
AC_DEFUN([CURL_CHECK_FUNC_GETHOSTBYADDR_R], [
AC_REQUIRE([CURL_INCLUDES_SYS_UIO])dnl
#
tst_links_gethostbyaddr_r="unknown"
tst_proto_gethostbyaddr_r="unknown"
tst_compi_gethostbyaddr_r="unknown"
tst_allow_gethostbyaddr_r="unknown"
tst_nargs_gethostbyaddr_r="unknown"
#
AC_MSG_CHECKING([if gethostbyaddr_r can be linked])
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([gethostbyaddr_r])
],[
AC_MSG_RESULT([yes])
tst_links_gethostbyaddr_r="yes"
],[
AC_MSG_RESULT([no])
tst_links_gethostbyaddr_r="no"
])
#
if test "$tst_links_gethostbyaddr_r" = "yes"; then
AC_MSG_CHECKING([if gethostbyaddr_r is prototyped])
AC_EGREP_CPP([gethostbyaddr_r],[
$curl_includes_netdb
],[
AC_MSG_RESULT([yes])
tst_proto_gethostbyaddr_r="yes"
],[
AC_MSG_RESULT([no])
tst_proto_gethostbyaddr_r="no"
])
fi
#
if test "$tst_proto_gethostbyaddr_r" = "yes"; then
if test "$tst_nargs_gethostbyaddr_r" = "unknown"; then
AC_MSG_CHECKING([if gethostbyaddr_r takes 5 args.])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
$curl_includes_netdb
]],[[
if(0 != gethostbyaddr_r(0, 0, 0, 0, 0))
return 1;
]])
],[
AC_MSG_RESULT([yes])
tst_compi_gethostbyaddr_r="yes"
tst_nargs_gethostbyaddr_r="5"
],[
AC_MSG_RESULT([no])
tst_compi_gethostbyaddr_r="no"
])
fi
if test "$tst_nargs_gethostbyaddr_r" = "unknown"; then
AC_MSG_CHECKING([if gethostbyaddr_r takes 7 args.])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
$curl_includes_netdb
]],[[
if(0 != gethostbyaddr_r(0, 0, 0, 0, 0, 0, 0))
return 1;
]])
],[
AC_MSG_RESULT([yes])
tst_compi_gethostbyaddr_r="yes"
tst_nargs_gethostbyaddr_r="7"
],[
AC_MSG_RESULT([no])
tst_compi_gethostbyaddr_r="no"
])
fi
if test "$tst_nargs_gethostbyaddr_r" = "unknown"; then
AC_MSG_CHECKING([if gethostbyaddr_r takes 8 args.])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
$curl_includes_netdb
]],[[
if(0 != gethostbyaddr_r(0, 0, 0, 0, 0, 0, 0, 0))
return 1;
]])
],[
AC_MSG_RESULT([yes])
tst_compi_gethostbyaddr_r="yes"
tst_nargs_gethostbyaddr_r="8"
],[
AC_MSG_RESULT([no])
tst_compi_gethostbyaddr_r="no"
])
fi
AC_MSG_CHECKING([if gethostbyaddr_r is compilable])
if test "$tst_compi_gethostbyaddr_r" = "yes"; then
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
fi
#
if test "$tst_compi_gethostbyaddr_r" = "yes"; then
AC_MSG_CHECKING([if gethostbyaddr_r usage allowed])
if test "x$curl_disallow_gethostbyaddr_r" != "xyes"; then
AC_MSG_RESULT([yes])
tst_allow_gethostbyaddr_r="yes"
else
AC_MSG_RESULT([no])
tst_allow_gethostbyaddr_r="no"
fi
fi
#
AC_MSG_CHECKING([if gethostbyaddr_r might be used])
if test "$tst_links_gethostbyaddr_r" = "yes" &&
test "$tst_proto_gethostbyaddr_r" = "yes" &&
test "$tst_compi_gethostbyaddr_r" = "yes" &&
test "$tst_allow_gethostbyaddr_r" = "yes"; then
AC_MSG_RESULT([yes])
AC_DEFINE_UNQUOTED(HAVE_GETHOSTBYADDR_R, 1,
[Define to 1 if you have the gethostbyaddr_r function.])
dnl AC_DEFINE_UNQUOTED(GETHOSTBYADDR_R_ARGS, $tst_nargs_gethostbyaddr_r,
dnl [Specifies the number of arguments to gethostbyaddr_r])
#
if test "$tst_nargs_getservbyport_r" -eq "5"; then
AC_DEFINE(HAVE_GETHOSTBYADDR_R_5, 1, [gethostbyaddr_r() takes 5 args])
elif test "$tst_nargs_getservbyport_r" -eq "7"; then
AC_DEFINE(HAVE_GETHOSTBYADDR_R_7, 1, [gethostbyaddr_r() takes 7 args])
elif test "$tst_nargs_getservbyport_r" -eq "6"; then
AC_DEFINE(HAVE_GETHOSTBYADDR_R_8, 1, [gethostbyaddr_r() takes 8 args])
fi
#
ac_cv_func_gethostbyaddr_r="yes"
else
AC_MSG_RESULT([no])
ac_cv_func_gethostbyaddr_r="no"
fi
])
dnl CURL_CHECK_FUNC_GETHOSTBYNAME_R
dnl -------------------------------------------------
dnl Verify if gethostbyname_r is available, prototyped,
dnl and can be compiled. If all of these are true, and
dnl usage has not been previously disallowed with
dnl shell variable curl_disallow_gethostbyname_r, then
dnl HAVE_GETHOSTBYNAME_R will be defined.
AC_DEFUN([CURL_CHECK_FUNC_GETHOSTBYNAME_R], [
AC_REQUIRE([CURL_INCLUDES_SYS_UIO])dnl
#
tst_links_gethostbyname_r="unknown"
tst_proto_gethostbyname_r="unknown"
tst_compi_gethostbyname_r="unknown"
tst_allow_gethostbyname_r="unknown"
tst_nargs_gethostbyname_r="unknown"
#
AC_MSG_CHECKING([if gethostbyname_r can be linked])
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([gethostbyname_r])
],[
AC_MSG_RESULT([yes])
tst_links_gethostbyname_r="yes"
],[
AC_MSG_RESULT([no])
tst_links_gethostbyname_r="no"
])
#
if test "$tst_links_gethostbyname_r" = "yes"; then
AC_MSG_CHECKING([if gethostbyname_r is prototyped])
AC_EGREP_CPP([gethostbyname_r],[
$curl_includes_netdb
],[
AC_MSG_RESULT([yes])
tst_proto_gethostbyname_r="yes"
],[
AC_MSG_RESULT([no])
tst_proto_gethostbyname_r="no"
])
fi
#
if test "$tst_proto_gethostbyname_r" = "yes"; then
if test "$tst_nargs_gethostbyname_r" = "unknown"; then
AC_MSG_CHECKING([if gethostbyname_r takes 3 args.])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
$curl_includes_netdb
]],[[
if(0 != gethostbyname_r(0, 0, 0))
return 1;
]])
],[
AC_MSG_RESULT([yes])
tst_compi_gethostbyname_r="yes"
tst_nargs_gethostbyname_r="3"
],[
AC_MSG_RESULT([no])
tst_compi_gethostbyname_r="no"
])
fi
if test "$tst_nargs_gethostbyname_r" = "unknown"; then
AC_MSG_CHECKING([if gethostbyname_r takes 5 args.])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
$curl_includes_netdb
]],[[
if(0 != gethostbyname_r(0, 0, 0, 0, 0))
return 1;
]])
],[
AC_MSG_RESULT([yes])
tst_compi_gethostbyname_r="yes"
tst_nargs_gethostbyname_r="5"
],[
AC_MSG_RESULT([no])
tst_compi_gethostbyname_r="no"
])
fi
if test "$tst_nargs_gethostbyname_r" = "unknown"; then
AC_MSG_CHECKING([if gethostbyname_r takes 6 args.])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
$curl_includes_netdb
]],[[
if(0 != gethostbyname_r(0, 0, 0, 0, 0, 0))
return 1;
]])
],[
AC_MSG_RESULT([yes])
tst_compi_gethostbyname_r="yes"
tst_nargs_gethostbyname_r="6"
],[
AC_MSG_RESULT([no])
tst_compi_gethostbyname_r="no"
])
fi
AC_MSG_CHECKING([if gethostbyname_r is compilable])
if test "$tst_compi_gethostbyname_r" = "yes"; then
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
fi
#
if test "$tst_compi_gethostbyname_r" = "yes"; then
AC_MSG_CHECKING([if gethostbyname_r usage allowed])
if test "x$curl_disallow_gethostbyname_r" != "xyes"; then
AC_MSG_RESULT([yes])
tst_allow_gethostbyname_r="yes"
else
AC_MSG_RESULT([no])
tst_allow_gethostbyname_r="no"
fi
fi
#
AC_MSG_CHECKING([if gethostbyname_r might be used])
if test "$tst_links_gethostbyname_r" = "yes" &&
test "$tst_proto_gethostbyname_r" = "yes" &&
test "$tst_compi_gethostbyname_r" = "yes" &&
test "$tst_allow_gethostbyname_r" = "yes"; then
AC_MSG_RESULT([yes])
AC_DEFINE_UNQUOTED(HAVE_GETHOSTBYNAME_R, 1,
[Define to 1 if you have the gethostbyname_r function.])
dnl AC_DEFINE_UNQUOTED(GETHOSTBYNAME_R_ARGS, $tst_nargs_gethostbyname_r,
dnl [Specifies the number of arguments to gethostbyname_r])
#
if test "$tst_nargs_getservbyport_r" -eq "3"; then
AC_DEFINE(HAVE_GETHOSTBYNAME_R_3, 1, [gethostbyname_r() takes 3 args])
elif test "$tst_nargs_getservbyport_r" -eq "5"; then
AC_DEFINE(HAVE_GETHOSTBYNAME_R_5, 1, [gethostbyname_r() takes 5 args])
elif test "$tst_nargs_getservbyport_r" -eq "6"; then
AC_DEFINE(HAVE_GETHOSTBYNAME_R_6, 1, [gethostbyname_r() takes 6 args])
fi
#
ac_cv_func_gethostbyname_r="yes"
else
AC_MSG_RESULT([no])
ac_cv_func_gethostbyname_r="no"
fi
])
dnl CURL_CHECK_FUNC_GETHOSTNAME
dnl -------------------------------------------------
dnl Verify if gethostname is available, prototyped, and