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79 lines
2.4 KiB
Plaintext
79 lines
2.4 KiB
Plaintext
dnl @synopsis ACX_WHICH_GETHOSTBYNAME_R
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dnl
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dnl Provides a test to determine the correct way to call gethostbyname_r
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dnl
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dnl defines HAVE_GETHOSTBYNAME_R to the number of arguments required
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dnl
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dnl e.g. 6 arguments (linux)
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dnl e.g. 5 arguments (solaris)
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dnl e.g. 3 arguments (osf/1)
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dnl
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dnl @version $Id: acinclude.m4,v 1.5 2004/02/18 14:56:34 kdebisschop Exp $
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dnl @author Brian Stafford <brian@stafford.uklinux.net>
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dnl
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dnl based on version by Caolan McNamara <caolan@skynet.ie>
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dnl based on David Arnold's autoconf suggestion in the threads faq
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dnl
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AC_DEFUN([ACX_WHICH_GETHOSTBYNAME_R],
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[AC_CACHE_CHECK(number of arguments to gethostbyname_r,
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acx_which_gethostbyname_r, [
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AC_TRY_COMPILE([
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# include <netdb.h>
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], [
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char *name;
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struct hostent *he;
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struct hostent_data data;
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(void) gethostbyname_r(name, he, &data);
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],acx_which_gethostbyname_r=3,
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[
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dnl acx_which_gethostbyname_r=0
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AC_TRY_COMPILE([
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# include <netdb.h>
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], [
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char *name;
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struct hostent *he, *res;
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char *buffer = NULL;
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int buflen = 2048;
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int h_errnop;
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(void) gethostbyname_r(name, he, buffer, buflen, &res, &h_errnop)
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],acx_which_gethostbyname_r=6,
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[
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dnl acx_which_gethostbyname_r=0
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AC_TRY_COMPILE([
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# include <netdb.h>
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], [
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char *name;
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struct hostent *he;
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char *buffer = NULL;
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int buflen = 2048;
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int h_errnop;
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(void) gethostbyname_r(name, he, buffer, buflen, &h_errnop)
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],acx_which_gethostbyname_r=5,acx_which_gethostbyname_r=0)
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]
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)
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]
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)
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])
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if test $acx_which_gethostbyname_r -gt 0 ; then
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AC_DEFINE_UNQUOTED([HAVE_GETHOSTBYNAME_R], $acx_which_gethostbyname_r,
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[Number of parameters to gethostbyname_r or 0 if not available])
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fi
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])
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dnl @synopsis ACX_HELP_STRING(OPTION,DESCRIPTION)
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AC_DEFUN([ACX_HELP_STRING],
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[ $1 builtin([substr],[ ],len($1))[$2]])
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dnl @synopsis ACX_FEATURE(ENABLE_OR_WITH,NAME[,VALUE])
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AC_DEFUN([ACX_FEATURE],
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[echo "builtin([substr],[ ],len(--$1-$2))--$1-$2: ifelse($3,,[$]translit($1-$2,-,_),$3)"])
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