From d84440d53b70923f6d201f6a17c26814e45f160e Mon Sep 17 00:00:00 2001 From: Yang Tse Date: Wed, 17 Sep 2008 16:03:49 +0000 Subject: improve detection of gethostbyaddr_r() and gethostbyname_r() --- m4/curl-functions.m4 | 284 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 284 insertions(+) (limited to 'm4') diff --git a/m4/curl-functions.m4 b/m4/curl-functions.m4 index e6e1c9939..f349bf6f4 100644 --- a/m4/curl-functions.m4 +++ b/m4/curl-functions.m4 @@ -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 -- cgit v1.2.3