mirror of
https://github.com/curl/curl.git
synced 2026-08-25 17:53:43 +03:00
improve detection of gethostbyaddr_r() and gethostbyname_r()
This commit is contained in:
Yang Tse
parent
0c1ae21c11
commit
d84440d53b
3 changed files with 288 additions and 420 deletions
418
acinclude.m4
418
acinclude.m4
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@ -2623,424 +2623,6 @@ AC_DEFUN([CURL_CHECK_INET_NTOA_R],
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])
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dnl CURL_CHECK_GETHOSTBYADDR_R
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dnl -------------------------------------------------
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dnl check number of arguments for gethostbyaddr_r, it
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dnl might take either 5, 7, or 8 arguments.
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AC_DEFUN([CURL_CHECK_GETHOSTBYADDR_R], [
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#
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AC_MSG_CHECKING([for gethostbyaddr_r])
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([gethostbyaddr_r])
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],[
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AC_MSG_RESULT([yes])
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tmp_cv_gethostbyaddr_r="yes"
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],[
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AC_MSG_RESULT([no])
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tmp_cv_gethostbyaddr_r="no"
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])
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#
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if test "$tmp_cv_gethostbyaddr_r" != "yes"; then
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AC_MSG_CHECKING([deeper for gethostbyaddr_r])
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AC_LINK_IFELSE([
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AC_LANG_PROGRAM([[
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]],[[
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gethostbyaddr_r();
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]])
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],[
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AC_MSG_RESULT([yes])
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tmp_cv_gethostbyaddr_r="yes"
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],[
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AC_MSG_RESULT([but still no])
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tmp_cv_gethostbyaddr_r="no"
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])
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fi
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#
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if test "$tmp_cv_gethostbyaddr_r" = "yes"; then
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ac_cv_gethostbyaddr_r_args="unknown"
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AC_MSG_CHECKING([if gethostbyaddr_r takes 5 arguments])
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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#undef _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>
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]],[[
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char * address;
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int length;
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int type;
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struct hostent h;
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struct hostent_data hdata;
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int rc;
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rc = gethostbyaddr_r(address, length, type, &h, &hdata);
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]])
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],[
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_GETHOSTBYADDR_R_5, 1, [gethostbyaddr_r() takes 5 args])
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ac_cv_gethostbyaddr_r_args="5"
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],[
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AC_MSG_RESULT([no])
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])
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if test "$ac_cv_gethostbyaddr_r_args" = "unknown"; then
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AC_MSG_CHECKING([if gethostbyaddr_r with -D_REENTRANT takes 5 arguments])
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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#undef _REENTRANT
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#define _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>
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]],[[
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char * address;
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int length;
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int type;
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struct hostent h;
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struct hostent_data hdata;
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int rc;
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rc = gethostbyaddr_r(address, length, type, &h, &hdata);
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]])
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],[
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_GETHOSTBYADDR_R_5, 1, [gethostbyaddr_r() takes 5 args])
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ac_cv_gethostbyaddr_r_args="5"
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],[
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AC_MSG_RESULT([no])
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])
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fi
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if test "$ac_cv_gethostbyaddr_r_args" = "unknown"; then
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AC_MSG_CHECKING([if gethostbyaddr_r takes 7 arguments])
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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#undef _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>
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]],[[
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char * address;
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int length;
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int type;
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struct hostent h;
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char buffer[8192];
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int h_errnop;
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struct hostent * hp;
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hp = gethostbyaddr_r(address, length, type, &h,
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buffer, 8192, &h_errnop);
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]])
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],[
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_GETHOSTBYADDR_R_7, 1, [gethostbyaddr_r() takes 7 args])
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ac_cv_gethostbyaddr_r_args="7"
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],[
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AC_MSG_RESULT([no])
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])
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fi
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if test "$ac_cv_gethostbyaddr_r_args" = "unknown"; then
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AC_MSG_CHECKING([if gethostbyaddr_r with -D_REENTRANT takes 7 arguments])
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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#undef _REENTRANT
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#define _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>
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]],[[
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char * address;
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int length;
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int type;
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struct hostent h;
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char buffer[8192];
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int h_errnop;
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struct hostent * hp;
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hp = gethostbyaddr_r(address, length, type, &h,
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buffer, 8192, &h_errnop);
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]])
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],[
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_GETHOSTBYADDR_R_7, 1, [gethostbyaddr_r() takes 7 args])
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ac_cv_gethostbyaddr_r_args="7"
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],[
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AC_MSG_RESULT([no])
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])
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fi
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if test "$ac_cv_gethostbyaddr_r_args" = "unknown"; then
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AC_MSG_CHECKING([if gethostbyaddr_r takes 8 arguments])
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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#undef _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>
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]],[[
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char * address;
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int length;
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int type;
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struct hostent h;
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char buffer[8192];
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int h_errnop;
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struct hostent * hp;
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int rc;
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rc = gethostbyaddr_r(address, length, type, &h,
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buffer, 8192, &hp, &h_errnop);
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]])
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],[
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_GETHOSTBYADDR_R_8, 1, [gethostbyaddr_r() takes 8 args])
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ac_cv_gethostbyaddr_r_args="8"
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],[
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AC_MSG_RESULT([no])
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])
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fi
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if test "$ac_cv_gethostbyaddr_r_args" = "unknown"; then
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AC_MSG_CHECKING([if gethostbyaddr_r with -D_REENTRANT takes 8 arguments])
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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#undef _REENTRANT
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#define _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>
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]],[[
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char * address;
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int length;
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int type;
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struct hostent h;
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char buffer[8192];
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int h_errnop;
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struct hostent * hp;
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int rc;
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rc = gethostbyaddr_r(address, length, type, &h,
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buffer, 8192, &hp, &h_errnop);
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]])
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],[
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_GETHOSTBYADDR_R_8, 1, [gethostbyaddr_r() takes 8 args])
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ac_cv_gethostbyaddr_r_args="8"
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],[
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AC_MSG_RESULT([no])
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])
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fi
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if test "$ac_cv_gethostbyaddr_r_args" = "unknown"; then
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AC_MSG_WARN([Cannot find out how to use gethostbyaddr_r])
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AC_MSG_WARN([HAVE_GETHOSTBYADDR_R will not be defined])
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ac_cv_func_gethostbyaddr_r="no"
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else
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AC_DEFINE_UNQUOTED(HAVE_GETHOSTBYADDR_R, 1,
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[Define to 1 if you have the gethostbyaddr_r function.])
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ac_cv_func_gethostbyaddr_r="yes"
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fi
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else
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ac_cv_func_gethostbyaddr_r="no"
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fi
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])
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dnl CURL_CHECK_GETHOSTBYNAME_R
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dnl -------------------------------------------------
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dnl check number of arguments for gethostbyname_r, it
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dnl might take either 3, 5, or 6 arguments.
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AC_DEFUN([CURL_CHECK_GETHOSTBYNAME_R], [
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#
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AC_MSG_CHECKING([for gethostbyname_r])
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([gethostbyname_r])
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],[
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AC_MSG_RESULT([yes])
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tmp_cv_gethostbyname_r="yes"
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],[
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AC_MSG_RESULT([no])
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tmp_cv_gethostbyname_r="no"
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])
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#
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if test "$tmp_cv_gethostbyname_r" != "yes"; then
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AC_MSG_CHECKING([deeper for gethostbyname_r])
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AC_LINK_IFELSE([
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AC_LANG_PROGRAM([[
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]],[[
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gethostbyname_r();
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]])
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],[
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AC_MSG_RESULT([yes])
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tmp_cv_gethostbyname_r="yes"
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],[
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AC_MSG_RESULT([but still no])
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tmp_cv_gethostbyname_r="no"
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])
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fi
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#
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if test "$tmp_cv_gethostbyname_r" = "yes"; then
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ac_cv_gethostbyname_r_args="unknown"
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AC_MSG_CHECKING([if gethostbyname_r takes 3 arguments])
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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#undef _REENTRANT
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#include <string.h>
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#include <sys/types.h>
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#include <netdb.h>
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#undef NULL
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#define NULL (void *)0
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int
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gethostbyname_r(const char *, struct hostent *,
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struct hostent_data *);
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]],[[
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struct hostent_data data;
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gethostbyname_r(NULL, NULL, NULL);
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]])
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],[
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_GETHOSTBYNAME_R_3, 1, [gethostbyname_r() takes 3 args])
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ac_cv_gethostbyname_r_args="3"
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],[
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AC_MSG_RESULT([no])
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])
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if test "$ac_cv_gethostbyname_r_args" = "unknown"; then
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AC_MSG_CHECKING([if gethostbyname_r with -D_REENTRANT takes 3 arguments])
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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#undef _REENTRANT
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#define _REENTRANT
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#include <string.h>
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#include <sys/types.h>
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#include <netdb.h>
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#undef NULL
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#define NULL (void *)0
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int
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gethostbyname_r(const char *, struct hostent *,
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struct hostent_data *);
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]],[[
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struct hostent_data data;
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gethostbyname_r(NULL, NULL, NULL);
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]])
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],[
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_GETHOSTBYNAME_R_3, 1, [gethostbyname_r() takes 3 args])
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ac_cv_gethostbyname_r_args="3"
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],[
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AC_MSG_RESULT([no])
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])
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fi
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if test "$ac_cv_gethostbyname_r_args" = "unknown"; then
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AC_MSG_CHECKING([if gethostbyname_r takes 5 arguments])
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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#undef _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>
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#undef NULL
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#define NULL (void *)0
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struct hostent *
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gethostbyname_r(const char *, struct hostent *,
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char *, int, int *);
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]],[[
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gethostbyname_r(NULL, NULL, NULL, 0, NULL);
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]])
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],[
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_GETHOSTBYNAME_R_5, 1, [gethostbyname_r() takes 5 args])
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ac_cv_gethostbyname_r_args="5"
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],[
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AC_MSG_RESULT([no])
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])
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fi
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if test "$ac_cv_gethostbyname_r_args" = "unknown"; then
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AC_MSG_CHECKING([if gethostbyname_r with -D_REENTRANT takes 5 arguments])
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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#undef _REENTRANT
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#define _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>
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#undef NULL
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#define NULL (void *)0
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struct hostent *
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gethostbyname_r(const char *, struct hostent *,
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char *, int, int *);
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]],[[
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gethostbyname_r(NULL, NULL, NULL, 0, NULL);
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]])
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],[
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_GETHOSTBYNAME_R_5, 1, [gethostbyname_r() takes 5 args])
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ac_cv_gethostbyname_r_args="5"
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],[
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AC_MSG_RESULT([no])
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])
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fi
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if test "$ac_cv_gethostbyname_r_args" = "unknown"; then
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AC_MSG_CHECKING([if gethostbyname_r takes 6 arguments])
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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#undef _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>
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#undef NULL
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#define NULL (void *)0
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int
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gethostbyname_r(const char *, struct hostent *,
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char *, size_t, struct hostent **, int *);
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]],[[
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gethostbyname_r(NULL, NULL, NULL, 0, NULL, NULL);
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]])
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],[
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_GETHOSTBYNAME_R_6, 1, [gethostbyname_r() takes 6 args])
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ac_cv_gethostbyname_r_args="6"
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],[
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AC_MSG_RESULT([no])
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])
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fi
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if test "$ac_cv_gethostbyname_r_args" = "unknown"; then
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AC_MSG_CHECKING([if gethostbyname_r with -D_REENTRANT takes 6 arguments])
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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#undef _REENTRANT
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#define _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>
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#undef NULL
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#define NULL (void *)0
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int
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gethostbyname_r(const char *, struct hostent *,
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char *, size_t, struct hostent **, int *);
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]],[[
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gethostbyname_r(NULL, NULL, NULL, 0, NULL, NULL);
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]])
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],[
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_GETHOSTBYNAME_R_6, 1, [gethostbyname_r() takes 6 args])
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ac_cv_gethostbyname_r_args="6"
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],[
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AC_MSG_RESULT([no])
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])
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fi
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if test "$ac_cv_gethostbyname_r_args" = "unknown"; then
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AC_MSG_WARN([Cannot find out how to use gethostbyname_r])
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AC_MSG_WARN([HAVE_GETHOSTBYNAME_R will not be defined])
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ac_cv_func_gethostbyname_r="no"
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else
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AC_DEFINE_UNQUOTED(HAVE_GETHOSTBYNAME_R, 1,
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[Define to 1 if you have the gethostbyname_r function.])
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ac_cv_func_gethostbyname_r="yes"
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fi
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else
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ac_cv_func_gethostbyname_r="no"
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fi
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])
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dnl **********************************************************************
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dnl CURL_DETECT_ICC ([ACTION-IF-YES])
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dnl
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