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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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53
configure.in
View file

@ -52,6 +52,7 @@ AC_CHECK_HEADERS(sys/stat.h)
AC_CHECK_HEADERS(sys/time.h)
AC_CHECK_HEADERS(sys/types.h)
AC_CHECK_HEADERS(arpa/inet.h)
AC_CHECK_HEADERS(netdb.h)
AC_HEADER_TIME
dnl This is needed on some versions of FreeBSD...
AC_CHECK_HEADERS(machine/param.h)
@ -118,9 +119,6 @@ AC_CHECK_TYPES(socklen_t,,,
])
AC_SEARCH_LIBS(socket, [socket ws2_32 wsock32], , [AC_MSG_ERROR(socket library not found)])
AC_SEARCH_LIBS(gethostbyname, [nsl resolv], , [AC_MSG_ERROR(gethostbyname not found)])
AC_SEARCH_LIBS(inet_aton, [nsl resolv], , [AC_MSG_ERROR(inet_aton not found)])
AC_SEARCH_LIBS(herror, [nsl resolv], , [AC_MSG_ERROR(herror not found)])
AC_CHECK_FUNCS(fcntl)
AC_CHECK_FUNCS(setsid)
@ -137,6 +135,7 @@ AC_CHECK_FUNCS(strtoull)
PA_MSGHDR_MSG_CONTROL
PA_STRUCT_IN_PKTINFO
PA_STRUCT_ADDRINFO
PA_HEADER_DEFINES(fcntl.h, int, O_NONBLOCK)
PA_HEADER_DEFINES(fcntl.h, int, O_BINARY)
@ -153,9 +152,30 @@ SRCROOT=`cd $srcdir && pwd`
OBJROOT=`pwd`
XTRA=false
AC_SEARCH_LIBS(xmalloc, iberty, , [XTRA=true; AC_LIBOBJ(xmalloc)])
AC_SEARCH_LIBS(xstrdup, iberty, , [XTRA=true; AC_LIBOBJ(xstrdup)])
AC_SEARCH_LIBS(bsd_signal, bsd, , [XTRA=true; AC_LIBOBJ(bsdsignal)])
PA_SEARCH_LIBS_AND_ADD(xmalloc, iberty)
PA_SEARCH_LIBS_AND_ADD(xstrdup, iberty)
PA_SEARCH_LIBS_AND_ADD(bsd_signal, bsd, bsdsignal)
PA_SEARCH_LIBS_AND_ADD(getaddrinfo, [nsl resolv])
if $pa_add_getaddrinfo
then
AC_SEARCH_LIBS(gethostbyname, [nsl resolv],
[AC_SEARCH_LIBS(herror, [nsl resolv], ,
[AC_MSG_ERROR(herror not found)])],
[AC_MSG_ERROR(gethostbyname not found)])
else
AC_SEARCH_LIBS(freeaddrinfo, [nsl resolv], ,
[AC_MSG_ERROR(getaddrinfo but not freeaddrinfo found)])
AC_SEARCH_LIBS(gai_strerror, [nsl resolv], ,
[AC_MSG_ERROR(getaddrinfo but not gai_strerror found)])
fi
PA_SEARCH_LIBS_AND_ADD(inet_ntop, [nsl resolv])
if $pa_add_inet_ntop
then
AC_SEARCH_LIBS(inet_ntoa, [nsl resolv], ,
[AC_MSG_ERROR(inet_ntoa not found)])
fi
AC_CHECK_FUNCS(daemon, , [XTRA=true; AC_LIBOBJ(daemon)])
AC_CHECK_FUNCS(dup2, , [XTRA=true; AC_LIBOBJ(dup2)])
if $XTRA
@ -226,6 +246,27 @@ PA_WITH_BOOL(readline, 1,
TFTP_LIBS="$LIBS $XTRALIBS"
LIBS="$common_libs"
dnl
dnl Check for IPV6 and disable-ipv6
dnl
PA_STRUCT_SOCKADDR_IN6
AC_MSG_CHECKING([for IPv6 support])
PA_WITH_BOOL(ipv6, 1,
[ --without-ipv6 disable the support for IPv6],
[
if $HAVE_INET6
then
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_IPV6, 1, [Define if IPv6 support is enabled.])
PA_STRUCT_IN6_PKTINFO
else
AC_MSG_RESULT(no)
AC_MSG_WARN([*** we do not have required IPv6 structs - IPv6 will be disabled])
fi
],
[AC_MSG_RESULT(disabled)])
AC_SUBST(SRCROOT)
AC_SUBST(OBJROOT)