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IPv6 infrastructure support

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Add autoconf rules to detect IPv6 availability and some of the neeeded
support functions. Add stubs for getaddrinfo and inet_ntop.
You can disable IPv6 at compile time with
./configure --without-ipv6

Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Karsten Keil 2008-07-23 17:05:24 +02:00 • committed by H. Peter Anvin
parent 57ca281980
commit 7fe0fb941c
5 changed files with 355 additions and 6 deletions
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89
aclocal.m4 vendored
View file

@ -87,6 +87,71 @@ AC_DEFUN(PA_STRUCT_IN_PKTINFO,
#include <sys/uio.h>
])])
dnl ------------------------------------------------------------------------
dnl PA_STRUCT_SOCKADDR_IN6
dnl
dnl Look for definition of struct sockaddr_in6, which at least has an
dnl sin6_addr member
dnl
AH_TEMPLATE([HAVE_STRUCT_SOCKADDR_IN6],
[Define if struct sockaddr_in6 is defined.])
AC_DEFUN(PA_STRUCT_SOCKADDR_IN6,
[AC_CHECK_MEMBER(struct sockaddr_in6.sin6_addr,
[
AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN6)
HAVE_INET6=true;
],
[
HAVE_INET6=false;
],
[
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
])])
dnl ------------------------------------------------------------------------
dnl PA_STRUCT_ADDRINFO
dnl
dnl Look for definition of struct addrinfo, which at least has an
dnl ai_addr member
dnl
AH_TEMPLATE([HAVE_STRUCT_ADDRINFO],
[Define if struct addrinfo is defined.])
AC_DEFUN(PA_STRUCT_ADDRINFO,
[AC_CHECK_MEMBER(struct addrinfo.ai_addr,
[AC_DEFINE(HAVE_STRUCT_ADDRINFO)],
[],
[
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
])])
dnl ------------------------------------------------------------------------
dnl PA_STRUCT_IN6_PKTINFO
dnl
dnl Look for definition of struct in6_pktinfo, which at least has an
dnl ipi6_addr member
dnl
AH_TEMPLATE([HAVE_STRUCT_IN6_PKTINFO],
[Define if struct in6_pktinfo is defined.])
AC_DEFUN(PA_STRUCT_IN6_PKTINFO,
[AC_CHECK_MEMBER(struct in6_pktinfo.ipi6_addr,
[AC_DEFINE(HAVE_STRUCT_IN6_PKTINFO)],
[],
[
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
])])
dnl --------------------------------------------------------------------------
dnl PA_HAVE_TCPWRAPPERS
dnl
@ -189,3 +254,27 @@ int main()
[
AC_MSG_RESULT(no)
])])
dnl --------------------------------------------------------------------------
dnl PA_SEARCH_LIBS_AND_ADD
dnl
dnl PA_SEARCH_LIBS_AND_ADD(function, libraries [,function to add])
dnl --------------------------------------------------------------------------
AC_DEFUN(PA_SEARCH_LIBS_AND_ADD,
[
AH_TEMPLATE(AS_TR_CPP(HAVE_$1), [Define if $1 function was found])
AC_SEARCH_LIBS($1, $2,
[
AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_$1))
pa_add_$1=false;
],
[
XTRA=true;
if test $# -eq 3; then
AC_LIBOBJ($3)
else
AC_LIBOBJ($1)
fi
pa_add_$1=true;
])])