build/aclocal/ac_raf_func_which_getservbyname_r.m4

   1 dnl @synopsis AC_raf_FUNC_WHICH_GETSERVBYNAME_R
   2 dnl
   3 dnl Provides a test to determine the correct way to call
   4 dnl getservbyname_r:
   5 dnl
   6 dnl  - defines HAVE_FUNC_GETSERVBYNAME_R_6 if it needs 6 arguments (e.g linux)
   7 dnl  - defines HAVE_FUNC_GETSERVBYNAME_R_5 if it needs 5 arguments (e.g. solaris)
   8 dnl  - defines HAVE_FUNC_GETSERVBYNAME_R_4 if it needs 4 arguments (e.g. osf/1)
   9 dnl
  10 dnl An example use can be found at
  11 dnl http://raf.org/autoconf/net_getservbyname.c
  12 dnl
  13 dnl Based on Caolan McNamara's gethostbyname_r macro. Based on David
  14 dnl Arnold's autoconf suggestion in the threads faq.
  15 dnl
  16 dnl @category Misc
  17 dnl @author raf <raf@raf.org>
  18 dnl @version 2001-08-20
  19 dnl @license GPLWithACException
  20
  21 AC_DEFUN([AC_raf_FUNC_WHICH_GETSERVBYNAME_R],
  22 [AC_CACHE_CHECK(for getservbyname_r, ac_cv_func_which_getservbyname_r, [
  23 AC_CHECK_FUNC(getservbyname_r, [
  24         AC_TRY_COMPILE([
  25 #               include <netdb.h>
  26         ],      [
  27
  28         char *name;
  29         char *proto;
  30         struct servent *se;
  31         struct servent_data data;
  32         (void) getservbyname_r(name, proto, se, &data);
  33
  34                 ],ac_cv_func_which_getservbyname_r=four,
  35                         [
  36   AC_TRY_COMPILE([
  37 #   include <netdb.h>
  38   ], [
  39         char *name;
  40         char *proto;
  41         struct servent *se, *res;
  42         char buffer[2048];
  43         int buflen = 2048;
  44         (void) getservbyname_r(name, proto, se, buffer, buflen, &res)
  45   ],ac_cv_func_which_getservbyname_r=six,
  46
  47   [
  48   AC_TRY_COMPILE([
  49 #   include <netdb.h>
  50   ], [
  51         char *name;
  52         char *proto;
  53         struct servent *se;
  54         char buffer[2048];
  55         int buflen = 2048;
  56         (void) getservbyname_r(name, proto, se, buffer, buflen)
  57   ],ac_cv_func_which_getservbyname_r=five,ac_cv_func_which_getservbyname_r=no)
  58
  59   ]
  60
  61   )
  62                         ]
  63                 )]
  64         ,ac_cv_func_which_getservbyname_r=no)])
  65
  66 if test $ac_cv_func_which_getservbyname_r = six; then
  67   AC_DEFINE(HAVE_FUNC_GETSERVBYNAME_R_6)
  68 elif test $ac_cv_func_which_getservbyname_r = five; then
  69   AC_DEFINE(HAVE_FUNC_GETSERVBYNAME_R_5)
  70 elif test $ac_cv_func_which_getservbyname_r = four; then
  71   AC_DEFINE(HAVE_FUNC_GETSERVBYNAME_R_4)
  72
  73 fi
  74
  75 ])