- bump to release 1.

[packages/apache.git] / apache-ipv6-PLD.patch

diff -Nur apache_1.3.23.orig/README.v6 apache_1.3.23/README.v6
--- apache_1.3.23.orig/README.v6	Thu Jan  1 01:00:00 1970
+++ apache_1.3.23/README.v6	Wed Feb  6 20:20:48 2002
@@ -0,0 +1,166 @@
+IPv6-ready apache 1.3.x
+KAME Project
+$Id$
+
+This patchkit enables apache 1.3.x to perform HTTP connection over IPv6.
+Most of optional modules are left unchanged, i.e. it won't support IPv6,
+and it may not compile.
+
+Basically you can write IPv6 address where IPv4 address fits.
+
+extra command-line argument:
+	-4	Assume IPv4 address on ambiguous directives
+	-6	Assume IPv6 address on ambiguous directives (default)
+
+	The above two can be used, for example, to disambiguate
+	"BindAddress *".
+
+base commands:
+    Listen
+	Listen is expanded to take one or two arguments.
+		Listen port
+		Listen address:port
+		Listen address port
+	This is to let you specify "Listen :: 80", since "Listen :::80"
+	won't work.
+
+mod_access:
+    deny from
+    allow from
+	"deny from" and "allow from" supports IPv6 addresses, under the
+	following forms:
+		{deny,allow} from v6addr
+		{deny,allow} from v6addr/v6mask
+		{deny,allow} from v6addr/prefixlen
+	Also, wildcard ("*") and string hostname matches IPv6 hosts as well.
+
+mod_proxy:
+    ProxyRequests on
+	http/ftp proxying for both IPv4 and IPv6 is possible.
+	Access control functions (NoProxy) are not updated yet.
+
+	NOTE: for security reasons, we recommend you to filter out
+	outsider's access to your proxy, by directives like below:
+		<Directory proxy:*>
+		order deny,allow
+		deny from all
+		allow from 10.0.0.0/8
+		allow from 3ffe:9999:8888:7777::/64
+		</Directory>
+
+virtual host:
+	If you would like to this feature, you must describe 'Listen'
+	part on configuration file explicitly. like below:
+		Listen :: 80
+		Listen 0.0.0.0 80
+
+    NameVirtualHost
+	NameVirtualHost is expanded to take one more two arguments.
+		NameVirtualHost address
+		NameVirtualHost address:port
+		NameVirtualHost address port
+	This is to let you specify IPv6 address into address part.
+
+	Note that, if colon is found in the specified address string,
+	the code will to resolve the address in the following way:
+	1. try to resolve as address:port (most of IPv6 address fails)
+	2. if (1) is failed, try to resolve as address only
+	If there's ambiguity, i.e. 3ffe:0501::1:2, the address may not be
+	parsed as you expect (3ffe:0501::1 with port 2, or 3ffe:0501::1:2
+	with default port).  To get the right effect you are encouraged
+	to specify it without ambiguity.  In IPv6 case "address port"
+	(specify address and port separated by a space) is the safest way.
+
+    <VirtualHost host:port [host:port ...]>
+	If you would like to specify IPv6 numeric address in host part,
+	use bracketed format like below:
+		<VirtualHost [::1]:80>
+	Note: Now we DO NOT handle old non-bracketed format, 
+		<VirtualHost 0:0:0:0:0:0:0:1:80>
+	      so configuration file must be updated.
+	Note: The following is bad example to specify host ::1 port 80.
+	      This will treated as host ::1:80.
+		<VirtualHost ::1:80>
+
+logresolve (src/support)
+	error statistics in nameserver cache code is omitted.
+
+mod_unique_id
+	Originally mod_unique_id used IPv4 address as a seed for UNIQUE_ID,
+	and took IPv4 address registered onto DNS for the hostname (UNIX
+	hostname taken by gethostname(3)).  Therefore, this does not work
+	for IPv6-only hosts as they do not have IPv4 address for them.
+
+	Now, UNIQUE_ID can be generated using IPv6 address.  IPv6 address can
+	be used as the seed for UNIQUE_ID.
+	Because of this, UNIQUE_ID will be longer than normal apache.  This
+	may cause problem with some of the CGI scripts.
+	The preference of the addresses is based on the order returned
+	by getaddrinfo().  If your getaddrinfo() returns IPv4 address, IPv4
+	adderss will be used as a seed.
+	Note that some of IPv6 addresses are "scoped"; If you happened to use
+	link-local or site-local address as a seed, the UNIQUE_ID may not be
+	worldwide unique.
+
+	If longer UNIQUE_ID causes a problem, define SHORT_UNIQUE_ID in
+	mod_unique_id.c.  In this case, length of UNIQUE_ID will be kept the
+	same.  However, for IPv6 addresses mod_unique_id.c will use the last
+	32bit (not the whole 128bit) as the seed.  Therefore, there can be
+	collision in UNIQUE_ID.
+
+	The behavior should be improved in the near future; we welcome your
+	inputs.
+
+Modules known to be incompatible with IPv6
+	(please report us)
+
+configure
+	Configure has extra option, --enable-rule=INET6.  if the option
+	is specified, IPv6 code will be enabled.
+
+configuration file
+	We do not support IPv4 mapped address (IPv6 address format like
+	::ffff:10.1.1.1) in configuration file. 
+
+This kit assumes that you have working(*) getaddrinfo() and getnameinfo()
+library functions.  Even if you don't have one, don't panic.  We have
+included last-resort version (which support IPv4 only) into the kit.
+For more complete implementation you might want to check BIND 8.2.
+(*) NOTE: we have noticed that some of IPv6 stack is shipped with broken
+getaddrinfo().  In such cases, you should get and install BIND 8.2.
+
+When compiling this kit onto IPv6, you may need to specify some additional
+library paths or cpp defs (like -linet6 or -DINET6).
+Now you don't have to specify --enable-rule=INET6.  The "configure" script
+will give you some warnings if the IPv6 stack is not known to the 
+"configure" script.  Currently, the following IPv6 stacks are supported:
+- KAME IPv6 stack, http://www.kame.net/
+	use configure.v6 for convenience,
+- Linux IPv6 stack, http://www.linux.org/
+	use configure.v6 for convenience.
+- Solaris 8 IPv6 stack, http://www.sun.com/
+	use configure.v6 for convenience.
+To disable IPv6 support, specify --disable-rule=INET6 to the "configure"
+script.
+
+CAVEAT: This patchkit may change some of apache module API, to avoid
+IPv4-dependent structure member variable.  Please let us know if there's
+any troubles as we know very little about the apache module API.
+
+Acknowledgements
+	Thanks to all people submitted patches/fixes for this patch kit,
+	including:
+		"Chris P. Ross" <cross@eng.us.uu.net>
+
+Author contacts
+	Jun-ichiro itojun Hagino, KAME project
+	 http://www.kame.net/
+	 mailto:core@kame.net
+Linux Port
+	Arkadiusz Miskiewicz, Polish Linux Distribution project (IPv6)
+	 http://www.pld.org.pl/
+	 mailto:feedback@pld.org.pl
+	Satoshi SHIDA, Linux IPv6 Users Group JP
+	 http://www.v6.linux.or.jp/
+	YOSHIFUJI Hideaki, USAGI Project
+	 http://www.linux-ipv6.org/
diff -Nur apache_1.3.23.orig/conf/httpd.conf-dist apache_1.3.23/conf/httpd.conf-dist
--- apache_1.3.23.orig/conf/httpd.conf-dist	Wed Jan  9 17:05:31 2002
+++ apache_1.3.23/conf/httpd.conf-dist	Wed Feb  6 20:20:48 2002
@@ -174,6 +174,11 @@
 #Listen 3000
 #Listen 12.34.56.78:80
 
+# Listen can take two arguments.
+# (this is an extension for supporting IPv6 addresses)
+#Listen :: 80
+#Listen 0.0.0.0 80
+
 #
 # BindAddress: You can support virtual hosts with this option. This directive
 # is used to tell the server which IP address to listen to. It can either
diff -Nur apache_1.3.23.orig/configure.v6 apache_1.3.23/configure.v6
--- apache_1.3.23.orig/configure.v6	Thu Jan  1 01:00:00 1970
+++ apache_1.3.23/configure.v6	Wed Feb  6 20:20:48 2002
@@ -0,0 +1,3 @@
+#! /bin/sh
+
+./configure --enable-rule=INET6 --enable-module=proxy $*
diff -Nur apache_1.3.23.orig/src/Configuration.tmpl apache_1.3.23/src/Configuration.tmpl
--- apache_1.3.23.orig/src/Configuration.tmpl	Wed Feb  6 20:17:43 2002
+++ apache_1.3.23/src/Configuration.tmpl	Wed Feb  6 20:21:56 2002
@@ -191,6 +191,9 @@
 #  Rule EXPAT=default   : If Expat can be found at the system or
 #                         in lib/expat-lite, use it; otherwise
 #                         skip it
+# INET6:
+#  IPv6 support.
+#
 # 
 # CYGWIN_WINSOCK: 
 #  Use Win32 API system calls for socket communication instead 
@@ -205,6 +208,7 @@
 Rule IRIXN32=yes
 Rule PARANOID=no
 Rule EXPAT=default
+Rule INET6=no
 Rule CYGWIN_WINSOCK=no 
 
 # DEV_RANDOM:
diff -Nur apache_1.3.23.orig/src/Configure apache_1.3.23/src/Configure
--- apache_1.3.23.orig/src/Configure	Wed Feb  6 20:17:43 2002
+++ apache_1.3.23/src/Configure	Wed Feb  6 20:20:48 2002
@@ -238,6 +238,7 @@
 RULE_CYGWIN_WINSOCK=`./helpers/CutRule CYGWIN_WINSOCK $file` 
 RULE_SHARED_CORE=`./helpers/CutRule SHARED_CORE $file`
 RULE_SHARED_CHAIN=`./helpers/CutRule SHARED_CHAIN $file`
+RULE_INET6=`./helpers/CutRule INET6 $file`
 
 ####################################################################
 ## Rule SHARED_CORE implies required DSO support
@@ -1698,6 +1699,124 @@
     esac
 fi
 
+# INET6 support.
+if [ "$RULE_INET6" = "yes" ]; then
+    echo " + enabling INET6 support"
+    CFLAGS="$CFLAGS -DINET6"
+    CFLAGS="$CFLAGS -Dss_family=__ss_family -Dss_len=__ss_len"
+    IPV6_STACKTYPE="UNKNOWN"
+    for i in KAME Linux Solaris; do
+	case "$i" in
+	KAME)
+	    if [ -f /usr/include/netinet6/in6.h -a "x`egrep '__KAME__' /usr/include/netinet6/in6.h 2>/dev/null`" != "x" ]; then
+		IPV6_STACKTYPE=$i
+	    fi
+	    ;;
+	Linux)
+	    if [ /usr/include/netinet/ip6.h -a -d /usr/include/linux ]; then
+		IPV6_STACKTYPE=$i
+	    fi
+	    ;;
+	Solaris)
+	    SOL_VERSION=`(uname -v) 2>/dev/null` || SOL_VERSION="unknown"
+	    case "${PLAT}-${SOL_VERSION}" in
+		*-solaris2.27*-*IPv6*)
+		    if [ -f /etc/hostname -o -f /etc/hostname.[a-z]*[0-9] ]; then
+			IPV6_STACKTYPE="Solaris 7 (${SOL_VERSION})"
+		    fi
+		    ;;
+	    esac
+	    ;;
+	esac
+	if [ "$IPV6_STACKTYPE" != "UNKNOWN" ]; then
+	    break
+	fi
+    done
+    if [ "$IPV6_STACKTYPE" != "UNKNOWN" ]; then
+	echo " + You seem to be using $IPV6_STACKTYPE stack"
+	if ./helpers/TestCompile func getaddrinfo; then
+	    echo "   - Assuming you have working getaddrinfo in libc" 
+	else
+	    if [ -f /usr/local/v6/lib/libinet6.a -a "x`egrep '^EXTRA_L' Makefile.config | grep linet6`" = "x" ]; then
+		LIBS="$LIBS -L/usr/local/v6/lib -linet6"
+		echo "   - using getaddrinfo in libinet6" 
+	    elif [ -f /usr/local/lib/libinet6.a -a "x`egrep '^EXTRA_L' Makefile.config | grep linet6`" = "x" ]; then
+		LIBS="$LIBS -L/usr/local/lib -linet6"
+		echo "   - using getaddrinfo in libinet6"
+	    elif [ -f /usr/inet6/lib/libinet6.a -a "x`egrep '^EXTRA_L' Makefile.config | grep linet6`" = "x" ]; then
+		echo "   - using getaddrinfo in libinet6"
+	    else
+		echo "** WARNING: No getaddrinfo found, linkage may fail" 
+	    fi
+	fi
+    else
+	echo ""
+	echo "** WARNING: We have no explicit knowledge about the IPv6"
+	echo "** implementation on this host.  You may need to specify"
+	echo "** EXTRA_LIBS so that we can find getaddrinfo() and"
+	echo "** getnameinfo() library functions."
+	echo ""
+    fi
+    case $PLAT in
+	*-solaris2* )
+	    LIBS="$LIBS -lresolv"
+	    ;;
+    esac
+else
+    CFLAGS="$CFLAGS -DNEED_GETADDRINFO -DNEED_GETNAMEINFO"
+    if [ -f /usr/include/netdb.h -a "x`egrep 'addrinfo' /usr/include/netdb.h`" = "x" ]; then
+	CFLAGS="$CFLAGS -DNEED_ADDRINFO"
+    fi
+fi
+
+echo '#include <sys/types.h>' >testfunc.c
+echo '#include <sys/socket.h>' >>testfunc.c
+echo 'int testfunc(){ struct sockaddr sa; int i = sa.sa_len; };' >>testfunc.c
+rm -f testfunc.o
+eval "${MAKE-make} -f Makefile.config testfunc.o >/dev/null 2>/dev/null"
+if [ -f testfunc.o ]; then
+    echo " + you have sa_len in struct sockaddr."
+    CFLAGS="$CFLAGS -DHAVE_SOCKADDR_LEN"
+else
+    echo " + you don't have sa_len in struct sockaddr."
+fi
+rm -f testfunc.c testfunc.o
+
+echo '#include <sys/types.h>' >testfunc.c
+echo '#include <sys/socket.h>' >>testfunc.c
+echo 'struct sockaddr_storage sockaddr_storage;' >>testfunc.c
+rm -f testfunc.o
+eval "${MAKE-make} -f Makefile.config testfunc.o >/dev/null 2>/dev/null"
+if [ -f testfunc.o ]; then
+    echo " + assuming you have struct sockaddr_storage"
+else
+    CFLAGS="$CFLAGS -DNEED_SOCKADDR_STORAGE"
+    echo " + you need struct sockaddr_storage"
+fi
+rm -f testfunc.c testfunc.o
+
+echo '#include <sys/types.h>' >testfunc.c
+echo '#include <sys/socket.h>' >>testfunc.c
+echo 'int testfunc(){ socklen_t t; }' >>testfunc.c
+rm -f testfunc.o
+eval "${MAKE-make} -f Makefile.config testfunc.o >/dev/null 2>/dev/null"
+if [ ! -f testfunc.o ]; then
+    CFLAGS="$CFLAGS -Dsocklen_t=int"
+fi
+rm -f testfunc.c testfunc.o
+
+echo '#include <sys/types.h>' >testfunc.c
+echo '#include <sys/socket.h>' >>testfunc.c
+echo 'struct sockaddr_in sin;' >>testfunc.c
+echo 'int main(){ int i = sin.sin_len; }' >>testfunc.c
+rm -f testfunc.o
+eval "${MAKE-make} -f Makefile.config testfunc.o >/dev/null 2>/dev/null"
+if [ -f testfunc.o ]; then
+    CFLAGS="$CFLAGS -DSIN_LEN"
+fi
+rm -f testfunc.c testfunc.o
+
+
 ####################################################################
 ## Find out what modules we want and try and configure things for them
 ## Module lines can look like this:
@@ -2293,6 +2412,38 @@
 echo "#define AP_LONGEST_LONG $AP_LONGEST_LONG" >>$AP_CONFIG_AUTO_H
 echo "#endif" >>$AP_CONFIG_AUTO_H
 
+if [ x`./helpers/TestCompile -r sizeof 'uint32_t'` != x"" ]; then
+    echo "" >>$AP_CONFIG_AUTO_H
+    echo "/* determine: use uint32_t as 32bit unsigned int */" >>$AP_CONFIG_AUTO_H
+    echo "#ifndef ap_uint32_t" >>$AP_CONFIG_AUTO_H
+    echo "#define ap_uint32_t uint32_t" >>$AP_CONFIG_AUTO_H
+    echo "#endif" >>$AP_CONFIG_AUTO_H
+    echo "   - use uint32_t as 32bit unsigned int"
+elif [ x`./helpers/TestCompile -r sizeof 'u_int32_t'` != x"" ]; then
+    echo "" >>$AP_CONFIG_AUTO_H
+    echo "/* determine: use u_int32_t as 32bit unsigned int */" >>$AP_CONFIG_AUTO_H
+    echo "#ifndef ap_uint32_t" >>$AP_CONFIG_AUTO_H
+    echo "#define ap_uint32_t u_int32_t" >>$AP_CONFIG_AUTO_H
+    echo "#endif" >>$AP_CONFIG_AUTO_H
+    echo "   - use u_int32_t as 32bit unsigned int"
+elif [ x`./helpers/TestCompile -r sizeof 'unsigned int'` = x"4" ]; then
+    echo "" >>$AP_CONFIG_AUTO_H
+    echo "/* determine: use unsigned int as 32bit unsigned int */" >>$AP_CONFIG_AUTO_H
+    echo "#ifndef ap_uint32_t" >>$AP_CONFIG_AUTO_H
+    echo "#define ap_uint32_t unsigned int" >>$AP_CONFIG_AUTO_H
+    echo "#endif" >>$AP_CONFIG_AUTO_H
+    echo "   - use unsigned int as 32bit unsigned int"
+elif [ x`./helpers/TestCompile -r sizeof 'unsigned long int'` = x"4" ]; then
+    echo "" >>$AP_CONFIG_AUTO_H
+    echo "/* determine: use unsigned long int as 32bit unsigned int */" >>$AP_CONFIG_AUTO_H
+    echo "#ifndef uint32_t" >>$AP_CONFIG_AUTO_H
+    echo "#define uint32_t unsigned long int" >>$AP_CONFIG_AUTO_H
+    echo "#endif" >>$AP_CONFIG_AUTO_H
+    echo "   - use unsigned long int as 32bit unsigned int"
+else
+    echo "  - Warning: cannot determine what type should we use as 32bit unsigned int"
+fi
+
 ####################################################################
 ## More building ap_config_auto.h
 ##
diff -Nur apache_1.3.23.orig/src/ap/ap_snprintf.c apache_1.3.23/src/ap/ap_snprintf.c
--- apache_1.3.23.orig/src/ap/ap_snprintf.c	Mon Jan 21 22:56:43 2002
+++ apache_1.3.23/src/ap/ap_snprintf.c	Wed Feb  6 20:20:48 2002
@@ -73,6 +73,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <math.h>
+#include "sa_len.h"
 #ifdef WIN32
 #include <float.h>
 #endif
@@ -504,6 +505,42 @@
 
 
 
+#ifdef INET6
+static char *conv_sockaddr(struct sockaddr *sa, char *buf_end, int *len)
+{
+    char *p = buf_end;
+    char hostnamebuf[MAXHOSTNAMELEN];
+    char portnamebuf[MAXHOSTNAMELEN];
+    char *q;
+    int salen;
+
+#ifndef SIN6_LEN
+    salen = SA_LEN(sa);
+#else
+    salen = sa->sa_len;
+#endif
+    if (getnameinfo(sa, salen, hostnamebuf, sizeof(hostnamebuf),
+	    portnamebuf, sizeof(portnamebuf), NI_NUMERICHOST | NI_NUMERICSERV)) {
+	strcpy(hostnamebuf, "???");
+	strcpy(portnamebuf, "???");
+    }
+    if (strcmp(portnamebuf,"0") == 0)
+	strcpy(portnamebuf, "*");
+    q = portnamebuf + strlen(portnamebuf);
+    while (portnamebuf < q)
+	*--p = *--q;
+    *--p = ':';
+    q = hostnamebuf + strlen(hostnamebuf);
+    while (hostnamebuf < q)
+	*--p = *--q;
+
+    *len = buf_end - p;
+    return (p);
+}
+#endif /*INET6*/
+
+
+
 /*
  * Convert a floating point number to a string formats 'f', 'e' or 'E'.
  * The result is placed in buf, and len denotes the length of the string
@@ -1055,6 +1092,7 @@
 		    /* print a struct sockaddr_in as a.b.c.d:port */
 		case 'I':
 		    {
+#ifndef INET6
 			struct sockaddr_in *si;
 
 			si = va_arg(ap, struct sockaddr_in *);
@@ -1063,6 +1101,16 @@
 			    if (adjust_precision && precision < s_len)
 				s_len = precision;
 			}
+#else
+			struct sockaddr *sa;
+
+			sa = va_arg(ap, struct sockaddr *);
+			if (sa != NULL) {
+			    s = conv_sockaddr(sa, &num_buf[NUM_BUF_SIZE], &s_len);
+			    if (adjust_precision && precision < s_len)
+				s_len = precision;
+			}
+#endif
 			else {
 			    s = S_NULL;
 			    s_len = S_NULL_LEN;
diff -Nur apache_1.3.23.orig/src/include/ap.h apache_1.3.23/src/include/ap.h
--- apache_1.3.23.orig/src/include/ap.h	Mon Jan 21 22:56:43 2002
+++ apache_1.3.23/src/include/ap.h	Wed Feb  6 20:20:48 2002
@@ -91,7 +91,8 @@
  * with some extensions.  The extensions are:
  *
  * %pA	takes a struct in_addr *, and prints it as a.b.c.d
- * %pI	takes a struct sockaddr_in * and prints it as a.b.c.d:port
+ * %pI	takes a struct sockaddr * and prints it as a.b.c.d:port, or
+ *	ipv6-numeric-addr:port
  * %pp  takes a void * and outputs it in hex
  *
  * The %p hacks are to force gcc's printf warning code to skip
diff -Nur apache_1.3.23.orig/src/include/ap_config.h apache_1.3.23/src/include/ap_config.h
--- apache_1.3.23.orig/src/include/ap_config.h	Thu Jan 17 14:20:51 2002
+++ apache_1.3.23/src/include/ap_config.h	Wed Feb  6 20:20:48 2002
@@ -407,6 +407,10 @@
 #endif
 #ifndef S_IWOTH
 #define S_IWOTH 000002
+#ifndef rlim_t
+typedef int rlim_t;
+#endif
+typedef u_long n_long;
 #endif
 
 #define STDIN_FILENO  0
@@ -1507,6 +1511,70 @@
 #define ap_wait_t int
 #endif
 
+#ifndef INET6
+#define sockaddr_storage	sockaddr
+#define ss_family		sa_family
+#define ss_len			sa_len
+#else
+#include "sockaddr_storage.h"	/* sshida@st.rim.or.jp */
+#endif
+
+#ifndef INET6_ADDRSTRLEN
+#define INET6_ADDRSTRLEN	46
+#endif
+#ifndef INET_ADDRSTRLEN
+#define INET_ADDRSTRLEN		16
+#endif
+#ifndef NI_MAXHOST
+#define NI_MAXHOST		1025
+#endif
+#ifndef NI_MAXSERV
+#define	NI_MAXSERV		32
+#endif
+
+#if defined(NEED_GETADDRINFO) || defined(NEED_GETNAMEINFO)
+/*
+ * minimal definitions for fake getaddrinfo()/getnameinfo().
+ */
+#ifndef EAI_NODATA
+#define EAI_NODATA	1
+#define EAI_MEMORY	2
+#endif
+
+#ifndef AI_PASSIVE
+#define AI_PASSIVE	1
+#define AI_CANONNAME	2
+#define AI_NUMERICHOST	4
+#define NI_NUMERICHOST	8
+#define NI_NAMEREQD	16
+#define NI_NUMERICSERV	32
+#endif
+#endif
+
+#ifdef NEED_GETADDRINFO
+#ifdef NEED_ADDRINFO
+struct addrinfo {
+	int	ai_flags;	/* AI_PASSIVE, AI_CANONNAME */
+	int	ai_family;	/* PF_xxx */
+	int	ai_socktype;	/* SOCK_xxx */
+	int	ai_protocol;	/* 0 or IPPROTO_xxx for IPv4 and IPv6 */
+	size_t	ai_addrlen;	/* length of ai_addr */
+	char	*ai_canonname;	/* canonical name for hostname */
+	struct sockaddr *ai_addr;	/* binary address */
+	struct addrinfo *ai_next;	/* next structure in linked list */
+};
+#endif
+extern char *gai_strerror(int ecode);
+extern void freeaddrinfo(struct addrinfo *ai);
+extern int getaddrinfo(const char *hostname, const char *servname,
+	const struct addrinfo *hints, struct addrinfo **res);
+#endif
+#ifdef NEED_GETNAMEINFO
+extern int getnameinfo(const struct sockaddr *sa, size_t salen,
+	char *host, size_t hostlen, char *serv, size_t servlen,
+	int flag);
+#endif
+
 #ifdef __cplusplus
 }
 #endif
diff -Nur apache_1.3.23.orig/src/include/http_conf_globals.h apache_1.3.23/src/include/http_conf_globals.h
--- apache_1.3.23.orig/src/include/http_conf_globals.h	Wed Feb  6 20:17:43 2002
+++ apache_1.3.23/src/include/http_conf_globals.h	Wed Feb  6 20:23:09 2002
@@ -82,7 +82,8 @@
 extern API_VAR_EXPORT int ap_max_requests_per_child;
 extern API_VAR_EXPORT int ap_threads_per_child;
 extern API_VAR_EXPORT int ap_excess_requests_per_child;
-extern API_VAR_EXPORT struct in_addr ap_bind_address;
+extern API_VAR_EXPORT struct sockaddr_storage ap_bind_address;
+extern API_VAR_EXPORT int ap_default_family;
 extern listen_rec *ap_listeners;
 extern API_VAR_EXPORT int ap_daemons_to_start;
 extern API_VAR_EXPORT int ap_daemons_min_free;
diff -Nur apache_1.3.23.orig/src/include/http_vhost.h apache_1.3.23/src/include/http_vhost.h
--- apache_1.3.23.orig/src/include/http_vhost.h	Mon Jan 21 00:13:51 2002
+++ apache_1.3.23/src/include/http_vhost.h	Wed Feb  6 20:23:58 2002
@@ -73,7 +73,7 @@
 API_EXPORT(const char *) ap_parse_vhost_addrs(pool *p, const char *hostname, server_rec *s);
 
 /* handle NameVirtualHost directive */
-API_EXPORT_NONSTD(const char *) ap_set_name_virtual_host (cmd_parms *cmd, void *dummy, char *arg);
+API_EXPORT_NONSTD(const char *) ap_set_name_virtual_host (cmd_parms *cmd, void *dummy, char *h, char *p);
 
 /* given an ip address only, give our best guess as to what vhost it is */
 API_EXPORT(void) ap_update_vhost_given_ip(conn_rec *conn);
diff -Nur apache_1.3.23.orig/src/include/httpd.h apache_1.3.23/src/include/httpd.h
--- apache_1.3.23.orig/src/include/httpd.h	Wed Feb  6 20:17:43 2002
+++ apache_1.3.23/src/include/httpd.h	Wed Feb  6 20:24:49 2002
@@ -912,8 +912,8 @@
 
     /* Who is the client? */
 
-    struct sockaddr_in local_addr;	/* local address */
-    struct sockaddr_in remote_addr;	/* remote address */
+    struct sockaddr_storage local_addr;	/* local address */
+    struct sockaddr_storage remote_addr; /* remote address */
     char *remote_ip;		/* Client's IP address */
     char *remote_host;		/* Client's DNS name, if known.
 				 * NULL if DNS hasn't been checked,
@@ -955,8 +955,8 @@
 typedef struct server_addr_rec server_addr_rec;
 struct server_addr_rec {
     server_addr_rec *next;
-    struct in_addr host_addr;	/* The bound address, for this server */
-    unsigned short host_port;	/* The bound port, for this server */
+    struct sockaddr_storage host_addr;	/* The bound address, for this server */
+    unsigned short host_port;	/* The bound port, for this server XXX */
     char *virthost;		/* The name given in <VirtualHost> */
 };
 
@@ -1024,7 +1024,7 @@
 /* These are more like real hosts than virtual hosts */
 struct listen_rec {
     listen_rec *next;
-    struct sockaddr_in local_addr;	/* local IP address and port */
+    struct sockaddr_storage local_addr;	/* local IP address and port */
     int fd;
     int used;			/* Only used during restart */        
 /* more stuff here, like which protocol is bound to the port */
@@ -1184,7 +1184,7 @@
 #endif /*#ifdef CHARSET_EBCDIC*/
 
 API_EXPORT(char *) ap_get_local_host(pool *);
-API_EXPORT(unsigned long) ap_get_virthost_addr(char *hostname, unsigned short *port);
+API_EXPORT(struct sockaddr *) ap_get_virthost_addr(char *hostname, unsigned short *port);
 
 extern API_VAR_EXPORT time_t ap_restart_time;
 
diff -Nur apache_1.3.23.orig/src/include/sa_len.h apache_1.3.23/src/include/sa_len.h
--- apache_1.3.23.orig/src/include/sa_len.h	Thu Jan  1 01:00:00 1970
+++ apache_1.3.23/src/include/sa_len.h	Wed Feb  6 20:20:48 2002
@@ -0,0 +1,41 @@
+/* sa_len.h : tiny version of SA_LEN (written by <yoshfuji@ecei.tohoku.ac.jp>) */
+ 
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <sys/un.h>
+
+#ifndef HAVE_SOCKADDR_LEN
+#ifndef SA_LEN
+#define SA_LEN(s_)	ap_sa_len((s_)->sa_family)
+
+static NET_SIZE_T ap_sa_len (sa_family_t af)
+{
+    switch (af){
+#if defined(AF_INET)
+    case AF_INET:
+	return (sizeof(struct sockaddr_in));
+#endif /* AF_INET */
+#if defined(AF_INET6)
+    case AF_INET6:
+	return (sizeof(struct sockaddr_in6));
+#endif
+#ifdef AF_LOCAL
+    case AF_LOCAL:
+#endif /* AF_LOCAL */
+#if defined(AF_UNIX) && (AF_UNIX != AF_LOCAL)
+    case AF_UNIX:
+#endif /* AF_UNIX */
+#if defined(AF_FILE) && (AF_FILE != AF_LOCAL || AF_FILE != AF_UNIX)
+    case AF_FILE:
+#endif /* AF_FILE */
+#if defined(AF_LOCAL) || defined(AF_UNIX) || defined(AF_FILE)
+	return (sizeof(struct sockaddr_un));
+#endif /* defined(AF_LOCAL) || defined(AF_UNIX) || defined(AF_FILE) */
+    default:
+	return 0;
+    }
+    return 0;
+}
+#endif /* SA_LEN */
+#endif /* HAVE_SOCKADDR_LEN */
diff -Nur apache_1.3.23.orig/src/include/sockaddr_storage.h apache_1.3.23/src/include/sockaddr_storage.h
--- apache_1.3.23.orig/src/include/sockaddr_storage.h	Thu Jan  1 01:00:00 1970
+++ apache_1.3.23/src/include/sockaddr_storage.h	Wed Feb  6 20:20:48 2002
@@ -0,0 +1,53 @@
+/*
+struct sockaddr_storage
+
+   RFC2553 proposes struct sockaddr_storage.
+   This is a placeholder for all sockaddr-variant structures. This is
+   implemented like follows:
+
+   You should use this structure to hold any of sockaddr-variant
+   structures.
+*/
+#ifdef NEED_SOCKADDR_STORAGE
+
+struct sockaddr_storage {
+#ifdef HAVE_SOCKADDR_LEN
+	u_char ss_len;
+	u_char ss_family;
+#else
+	u_short ss_family;
+#endif
+	u_char __padding[128 - 2];
+};
+
+/*
+union sockunion
+
+   Alternatively, you may want to implement sockunion.h, with the
+   following content:
+
+   NOTE: For better portability, struct sockaddr_storage should be used.
+   union sockunion is okay, but is not really portable enough.
+*/
+union sockunion {
+	struct sockinet {
+#ifdef HAVE_SOCKADDR_LEN
+		u_char si_len;
+		u_char si_family;
+#else
+		u_short si_family;
+#endif
+		u_short si_port;
+	} su_si;
+	struct sockaddr_in  su_sin;
+#ifdef INET6
+	struct sockaddr_in6 su_sin6;
+#endif
+};
+#ifdef HAVE_SOCKADDR_LEN
+#define su_len		su_si.si_len
+#endif
+#define su_family	su_si.si_family
+#define su_port		su_si.si_port
+
+#endif /* NEED_SOCKADDR_STORAGE */
diff -Nur apache_1.3.23.orig/src/main/getaddrinfo.c apache_1.3.23/src/main/getaddrinfo.c
--- apache_1.3.23.orig/src/main/getaddrinfo.c	Thu Jan  1 01:00:00 1970
+++ apache_1.3.23/src/main/getaddrinfo.c	Wed Feb  6 20:20:48 2002
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+/*
+ * fake library for ssh v6 enabler patch
+ *
+ * This file includes getaddrinfo(), freeaddrinfo() and gai_strerror().
+ * These funtions are defined in rfc2133.
+ *
+ * But these functions are not implemented correctly. The minimum subset
+ * is implemented for ssh use only. For exapmle, this routine assumes
+ * that ai_family is AF_INET. Don't use it for another purpose.
+ * 
+ * In the case not using 'configure --enable-ipv6', this getaddrinfo.c
+ * will be used if you have broken getaddrinfo or no getaddrinfo.
+ */
+
+#if 0
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include "gai.h"
+#endif
+
+static struct addrinfo *
+malloc_ai(port, addr, socktype, protocol)
+int port;
+u_long addr;
+int socktype;
+int protocol;
+{
+  struct addrinfo *ai;
+
+  if (ai = (struct addrinfo *)malloc(sizeof(struct addrinfo) +
+				     sizeof(struct sockaddr_in))) {
+    memset(ai, 0, sizeof(struct addrinfo) + sizeof(struct sockaddr_in));
+    ai->ai_addr = (struct sockaddr *)(ai + 1);
+#if defined(HAVE_SOCKADDR_LEN)
+    ai->ai_addr->sa_len = 
+#endif
+      ai->ai_addrlen = sizeof(struct sockaddr_in);
+    ai->ai_addr->sa_family = ai->ai_family = AF_INET;
+    ai->ai_socktype = socktype;
+    ai->ai_protocol = protocol;
+    ((struct sockaddr_in *)(ai)->ai_addr)->sin_port = port;
+    ((struct sockaddr_in *)(ai)->ai_addr)->sin_addr.s_addr = addr;
+    return ai;
+  } else {
+    return NULL;
+  }
+}
+
+char *
+gai_strerror(ecode)
+int ecode;
+{
+  switch (ecode) {
+  case EAI_NODATA:
+    return "no address associated with hostname.";
+  case EAI_MEMORY:
+    return "memory allocation failure.";
+  default:
+    return "unknown error.";
+  }
+}    
+
+void
+freeaddrinfo(ai)
+struct addrinfo *ai;
+{
+  struct addrinfo *next;
+  
+  do {
+    next = ai->ai_next;
+    free(ai);
+  } while (ai = next);
+}
+
+int
+getaddrinfo(hostname, servname, hints, res)
+const char *hostname, *servname;
+const struct addrinfo *hints;
+struct addrinfo **res;
+{
+  struct addrinfo *cur, *prev = NULL;
+  struct hostent *hp;
+  int i, port;
+  
+  if (servname)
+    port = htons(atoi(servname));
+  else
+    port = 0;
+  if (hints && hints->ai_flags & AI_PASSIVE)
+    if (*res = malloc_ai(port, htonl(0x00000000), 
+			 (*res)->ai_socktype ? (*res)->ai_socktype : SOCK_STREAM,
+			 (*res)->ai_protocol))
+      return 0;
+    else
+      return EAI_MEMORY;
+  if (!hostname)
+    if (*res = malloc_ai(port, htonl(0x7f000001),
+			 (*res)->ai_socktype ? (*res)->ai_socktype : SOCK_STREAM,
+			 (*res)->ai_protocol))
+      return 0;
+    else
+      return EAI_MEMORY;
+  if (inet_addr(hostname) != -1)
+    if (*res = malloc_ai(port, inet_addr(hostname),
+			 (*res)->ai_socktype ? (*res)->ai_socktype : SOCK_STREAM,
+			 (*res)->ai_protocol))
+      return 0;
+    else
+      return EAI_MEMORY;
+  if ((hp = gethostbyname(hostname)) &&
+      hp->h_name && hp->h_name[0] && hp->h_addr_list[0]) {
+    for (i = 0; hp->h_addr_list[i]; i++)
+      if (cur = malloc_ai(port,
+			  ((struct in_addr *)hp->h_addr_list[i])->s_addr,
+			  (*res)->ai_socktype ? (*res)->ai_socktype : SOCK_STREAM,
+			  (*res)->ai_protocol)) {
+	if (prev)
+	  prev->ai_next = cur;
+	else
+	  *res = cur;
+	prev = cur;
+      } else {
+	if (*res)
+	  freeaddrinfo(*res);
+	return EAI_MEMORY;
+      }
+    return 0;
+  }
+  return EAI_NODATA;
+}
diff -Nur apache_1.3.23.orig/src/main/getnameinfo.c apache_1.3.23/src/main/getnameinfo.c
--- apache_1.3.23.orig/src/main/getnameinfo.c	Thu Jan  1 01:00:00 1970
+++ apache_1.3.23/src/main/getnameinfo.c	Wed Feb  6 20:20:48 2002
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+/*
+ * fake library for ssh v6 enabler patch
+ *
+ * This file includes getnameinfo().
+ * These funtions are defined in rfc2133.
+ *
+ * But these functions are not implemented correctly. The minimum subset
+ * is implemented for ssh use only. For exapmle, this routine assumes
+ * that ai_family is AF_INET. Don't use it for another purpose.
+ * 
+ * In the case not using 'configure --enable-ipv6', this getnameinfo.c
+ * will be used if you have broken getnameinfo or no getnameinfo.
+ */
+
+#if 0
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <string.h>
+#include "gai.h"
+#endif
+
+int
+getnameinfo(sa, salen, host, hostlen, serv, servlen, flags)
+const struct sockaddr *sa;
+size_t salen;
+char *host;
+size_t hostlen;
+char *serv;
+size_t servlen;
+int flags;
+{
+  struct sockaddr_in *sin = (struct sockaddr_in *)sa;
+  struct hostent *hp;
+  char tmpserv[16];
+  
+  if (serv) {
+    sprintf(tmpserv, "%d", ntohs(sin->sin_port));
+    if (strlen(tmpserv) > servlen)
+      return EAI_MEMORY;
+    else
+      strcpy(serv, tmpserv);
+  }
+  if (host)
+    if (flags & NI_NUMERICHOST)
+      if (strlen(inet_ntoa(sin->sin_addr)) > hostlen)
+	return EAI_MEMORY;
+      else {
+	strcpy(host, inet_ntoa(sin->sin_addr));
+	return 0;
+      }
+    else
+      if (hp = gethostbyaddr((char *)&sin->sin_addr, sizeof(struct in_addr),
+			     AF_INET))
+	if (strlen(hp->h_name) > hostlen)
+	  return EAI_MEMORY;
+	else {
+	  strcpy(host, hp->h_name);
+	  return 0;
+	}
+      else
+	return EAI_NODATA;
+  return 0;
+}
diff -Nur apache_1.3.23.orig/src/main/http_config.c apache_1.3.23/src/main/http_config.c
--- apache_1.3.23.orig/src/main/http_config.c	Wed Feb  6 20:17:43 2002
+++ apache_1.3.23/src/main/http_config.c	Wed Feb  6 20:28:01 2002
@@ -1564,7 +1564,6 @@
     ap_scoreboard_fname = DEFAULT_SCOREBOARD;
     ap_lock_fname = DEFAULT_LOCKFILE;
     ap_max_requests_per_child = DEFAULT_MAX_REQUESTS_PER_CHILD;
-    ap_bind_address.s_addr = htonl(INADDR_ANY);
     ap_listeners = NULL;
     ap_listenbacklog = DEFAULT_LISTENBACKLOG;
     ap_extended_status = 0;
@@ -1597,7 +1596,13 @@
     s->next = NULL;
     s->addrs = ap_pcalloc(p, sizeof(server_addr_rec));
     /* NOT virtual host; don't match any real network interface */
-    s->addrs->host_addr.s_addr = htonl(INADDR_ANY);
+    memset(&s->addrs->host_addr, 0, sizeof(s->addrs->host_addr));
+#if 0
+    s->addrs->host_addr.ss_family = ap_default_family; /* XXX: needed?, XXX: PF_xxx can be different from AF_xxx */
+#endif
+#ifdef HAVE_SOCKADDR_LEN
+    s->addrs->host_addr.ss_len = sizeof(s->addrs->host_addr); /* XXX: needed ? */
+#endif
     s->addrs->host_port = 0;	/* matches any port */
     s->addrs->virthost = "";	/* must be non-NULL */
     s->names = s->wild_names = NULL;
@@ -1616,21 +1621,33 @@
 static void default_listeners(pool *p, server_rec *s)
 {
     listen_rec *new;
+    struct addrinfo hints, *res0, *res;
+    int gai;
+    char servbuf[NI_MAXSERV];
 
     if (ap_listeners != NULL) {
 	return;
     }
+    ap_snprintf(servbuf, sizeof(servbuf), "%d", s->port ? s->port : DEFAULT_HTTP_PORT);
+    memset (&hints, 0, sizeof(hints));
+    hints.ai_family = ap_default_family;
+    hints.ai_socktype = SOCK_STREAM;
+    hints.ai_flags = AI_PASSIVE;
+    gai = getaddrinfo(NULL, servbuf, &hints, &res0);
+    if (gai){
+	fprintf(stderr, "default_listeners(): getaddrinfo(PASSIVE) for family %u: %s\n",
+		gai_strerror(gai), ap_default_family);
+	exit (1);
+    }
     /* allocate a default listener */
     new = ap_pcalloc(p, sizeof(listen_rec));
-    new->local_addr.sin_family = AF_INET;
-    new->local_addr.sin_addr = ap_bind_address;
-    /* Buck ugly cast to get around terniary op bug in some (MS) compilers */
-    new->local_addr.sin_port = htons((unsigned short)(s->port ? s->port 
-                                                        : DEFAULT_HTTP_PORT));
+    memcpy(&new->local_addr, res0->ai_addr, res0->ai_addrlen);
     new->fd = -1;
     new->used = 0;
     new->next = NULL;
     ap_listeners = new;
+
+    freeaddrinfo(res0);
 }
 
 
diff -Nur apache_1.3.23.orig/src/main/http_core.c apache_1.3.23/src/main/http_core.c
--- apache_1.3.23.orig/src/main/http_core.c	Wed Jan 16 22:34:32 2002
+++ apache_1.3.23/src/main/http_core.c	Wed Feb  6 20:20:48 2002
@@ -71,6 +71,7 @@
 #include "util_md5.h"
 #include "scoreboard.h"
 #include "fnmatch.h"
+#include "sa_len.h"
 
 #ifdef USE_MMAP_FILES
 #include <sys/mman.h>
@@ -621,7 +622,9 @@
 /* Code from Harald Hanche-Olsen <hanche@imf.unit.no> */
 static ap_inline void do_double_reverse (conn_rec *conn)
 {
-    struct hostent *hptr;
+    struct addrinfo hints, *res, *res0;
+    char hostbuf1[128], hostbuf2[128]; /* INET6_ADDRSTRLEN(=46) is enough */
+    int ok = 0;
 
     if (conn->double_reverse) {
 	/* already done */
@@ -632,28 +635,51 @@
 	conn->double_reverse = -1;
 	return;
     }
-    hptr = gethostbyname(conn->remote_host);
-    if (hptr) {
-	char **haddr;
-
-	for (haddr = hptr->h_addr_list; *haddr; haddr++) {
-	    if (((struct in_addr *)(*haddr))->s_addr
-		== conn->remote_addr.sin_addr.s_addr) {
-		conn->double_reverse = 1;
-		return;
-	    }
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = PF_UNSPEC;
+    hints.ai_socktype = SOCK_STREAM;
+    if (getaddrinfo(conn->remote_host, NULL, &hints, &res0)) {
+	conn->double_reverse = -1;
+	return;
+    }
+    for (res = res0; res; res = res->ai_next) {
+	if (res->ai_addr->sa_family != conn->remote_addr.ss_family ||
+	    !(res->ai_family == AF_INET 
+#ifdef INET6
+	      || res->ai_family == AF_INET6
+#endif
+	      )
+	    )
+	    continue;
+#ifndef HAVE_SOCKADDR_LEN
+	if (res->ai_addrlen != SA_LEN((struct sockaddr *)&conn->remote_addr))
+#else
+	if (res->ai_addr->sa_len != conn->remote_addr.ss_len)
+#endif
+	    continue;
+	if (getnameinfo(res->ai_addr, res->ai_addrlen,
+            hostbuf1, sizeof(hostbuf1), NULL, 0,
+            NI_NUMERICHOST))
+	    continue;
+	if (getnameinfo(((struct sockaddr *)&conn->remote_addr), res->ai_addrlen,
+            hostbuf2, sizeof(hostbuf2), NULL, 0,
+            NI_NUMERICHOST))
+	    continue;
+	if (strcmp(hostbuf1, hostbuf2) == 0){
+	    ok = 1;
+	    break;
 	}
     }
-    conn->double_reverse = -1;
+    conn->double_reverse = ok ? 1 : -1;
+    freeaddrinfo(res0);
 }
 
 API_EXPORT(const char *) ap_get_remote_host(conn_rec *conn, void *dir_config,
 					    int type)
 {
-    struct in_addr *iaddr;
-    struct hostent *hptr;
     int hostname_lookups;
     int old_stat = SERVER_DEAD;	/* we shouldn't ever be in this state */
+    char hostnamebuf[MAXHOSTNAMELEN];
 
     /* If we haven't checked the host name, and we want to */
     if (dir_config) {
@@ -675,10 +701,14 @@
 	    || hostname_lookups != HOSTNAME_LOOKUP_OFF)) {
 	old_stat = ap_update_child_status(conn->child_num, SERVER_BUSY_DNS,
 					  (request_rec*)NULL);
-	iaddr = &(conn->remote_addr.sin_addr);
-	hptr = gethostbyaddr((char *)iaddr, sizeof(struct in_addr), AF_INET);
-	if (hptr != NULL) {
-	    conn->remote_host = ap_pstrdup(conn->pool, (void *)hptr->h_name);
+	if (!getnameinfo((struct sockaddr *)&conn->remote_addr,
+#ifndef SIN6_LEN
+		SA_LEN((struct sockaddr *)&conn->remote_addr),
+#else
+		conn->remote_addr.ss_len,
+#endif
+		hostnamebuf, sizeof(hostnamebuf), NULL, 0, 0)) {
+	    conn->remote_host = ap_pstrdup(conn->pool, (void *)hostnamebuf);
 	    ap_str_tolower(conn->remote_host);
 	   
 	    if (hostname_lookups == HOSTNAME_LOOKUP_DOUBLE) {
@@ -759,6 +789,7 @@
 {
     conn_rec *conn = r->connection;
     core_dir_config *d;
+    char hbuf[MAXHOSTNAMELEN];
 
     d = (core_dir_config *)ap_get_module_config(r->per_dir_config,
 						&core_module);
@@ -768,23 +799,22 @@
     }
     if (d->use_canonical_name == USE_CANONICAL_NAME_DNS) {
         if (conn->local_host == NULL) {
-	    struct in_addr *iaddr;
-	    struct hostent *hptr;
             int old_stat;
 	    old_stat = ap_update_child_status(conn->child_num,
 					      SERVER_BUSY_DNS, r);
-	    iaddr = &(conn->local_addr.sin_addr);
-	    hptr = gethostbyaddr((char *)iaddr, sizeof(struct in_addr),
-				 AF_INET);
-	    if (hptr != NULL) {
-	        conn->local_host = ap_pstrdup(conn->pool,
-					      (void *)hptr->h_name);
-		ap_str_tolower(conn->local_host);
-	    }
-	    else {
-	        conn->local_host = ap_pstrdup(conn->pool,
-					      r->server->server_hostname);
+	    if (getnameinfo((struct sockaddr *)&conn->local_addr,
+#ifndef SIN6_LEN
+		    SA_LEN((struct sockaddr *)&conn->local_addr),
+#else
+		    conn->local_addr.ss_len,
+#endif
+		    hbuf, sizeof(hbuf), NULL, 0, 0) == 0) {
+		conn->local_host = ap_pstrdup(conn->pool, hbuf);
+	    } else {
+		conn->local_host = ap_pstrdup(conn->pool,
+		    r->server->server_hostname);
 	    }
+	    ap_str_tolower(conn->local_host);
 	    (void) ap_update_child_status(conn->child_num, old_stat, r);
 	}
 	return conn->local_host;
@@ -803,11 +833,13 @@
 
     if (d->use_canonical_name == USE_CANONICAL_NAME_OFF
 	|| d->use_canonical_name == USE_CANONICAL_NAME_DNS) {
-        return r->hostname ? ntohs(r->connection->local_addr.sin_port)
-			   : port;
-    }
-    /* default */
-    return port;
+        return r->hostname
+	    ?  ntohs(((struct sockaddr_in *)&r->connection->local_addr)->sin_port)
+	    : port;
+    }
+    return r->hostname
+	? ntohs(((struct sockaddr_in *)&r->connection->local_addr)->sin_port)
+	: port;
 }
 
 API_EXPORT(char *) ap_construct_url(pool *p, const char *uri,
@@ -2539,12 +2571,25 @@
 
 static const char *set_bind_address(cmd_parms *cmd, void *dummy, char *arg) 
 {
+    struct addrinfo hints, *res;
+    struct sockaddr *sa;
+    size_t sa_len;
+    int error;
     const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
     if (err != NULL) {
         return err;
     }
 
-    ap_bind_address.s_addr = ap_get_virthost_addr(arg, NULL);
+    if (strcmp(arg, "*") == 0)
+      arg = NULL;
+
+    sa = ap_get_virthost_addr(arg, NULL);
+#ifdef HAVE_SOCKADDR_LEN
+    sa_len = sa->sa_len;
+#else
+    sa_len = SA_LEN(sa);
+#endif
+    memcpy(&ap_bind_address, &sa, sa_len);
     return NULL;
 }
 
@@ -2576,44 +2621,70 @@
     return NULL;
 }
 
-static const char *set_listener(cmd_parms *cmd, void *dummy, char *ips)
+static const char *set_listener(cmd_parms *cmd, void *dummy, char *h, char *p)
 {
     listen_rec *new;
-    char *ports;
-    unsigned short port;
+    char *host, *port;
+    struct addrinfo hints, *res;
+    int error;
     
     const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
     if (err != NULL) {
         return err;
     }
 
-    ports = strchr(ips, ':');
-    if (ports != NULL) {
-	if (ports == ips) {
-	    return "Missing IP address";
-	}
-	else if (ports[1] == '\0') {
-	    return "Address must end in :<port-number>";
+    host = port = NULL;
+    if (!p) {
+	port = strrchr(h, ':');
+	if (port != NULL) {
+	    if (port == h) {
+		return "Missing IP address";
+	    }
+	    else if (port[1] == '\0') {
+		return "Address must end in :<port-number>";
+	    }
+	    *(port++) = '\0';
+	    if (*h)
+		host = h;
+	} else {
+	    host = NULL;
+	    port = h;
 	}
-	*(ports++) = '\0';
-    }
-    else {
-	ports = ips;
+    } else {
+	host = h;
+	port = p;
     }
 
-    new=ap_pcalloc(cmd->pool, sizeof(listen_rec));
-    new->local_addr.sin_family = AF_INET;
-    if (ports == ips) { /* no address */
-	new->local_addr.sin_addr.s_addr = htonl(INADDR_ANY);
-    }
-    else {
-	new->local_addr.sin_addr.s_addr = ap_get_virthost_addr(ips, NULL);
-    }
-    port = atoi(ports);
-    if (!port) {
-	return "Port must be numeric";
+    if (host && strcmp(host, "*") == 0)
+	host = NULL;
+    
+    new = ap_pcalloc(cmd->pool, sizeof(listen_rec));
+
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = host ? PF_UNSPEC : ap_default_family;
+    hints.ai_flags = AI_PASSIVE;
+    hints.ai_socktype = SOCK_STREAM;
+    error = getaddrinfo(host, port, &hints, &res);
+    if (error || !res) {
+	fprintf(stderr, "could not resolve ");
+	if (host)
+	    fprintf(stderr, "host \"%s\" ", host);
+	if (port)
+	    fprintf(stderr, "port \"%s\" ", port);
+	fprintf(stderr, "--- %s\n", gai_strerror(error));
+	exit(1);
+    }
+    if (res->ai_next) {
+        if (host)
+	    fprintf(stderr, "host \"%s\" ", host);
+	if (port)
+	    fprintf(stderr, "port \"%s\" ", port);
+	fprintf(stderr, "resolved to multiple addresses, ambiguous.\n");
+	exit(1);
     }
-    new->local_addr.sin_port = htons(port);
+
+    memcpy(&new->local_addr, res->ai_addr, res->ai_addrlen);
+
     new->fd = -1;
     new->used = 0;
     new->next = ap_listeners;
@@ -3328,7 +3399,7 @@
 { "ThreadStackSize", set_threadstacksize, NULL, RSRC_CONF, TAKE1,
   "Stack size each created thread will use."},
 #endif
-{ "Listen", set_listener, NULL, RSRC_CONF, TAKE1,
+{ "Listen", set_listener, NULL, RSRC_CONF, TAKE12,
   "A port number or a numeric IP address and a port number"},
 { "SendBufferSize", set_send_buffer_size, NULL, RSRC_CONF, TAKE1,
   "Send buffer size in bytes"},
@@ -3362,7 +3433,7 @@
   "Name of the config file to be included" },
 { "LogLevel", set_loglevel, NULL, RSRC_CONF, TAKE1,
   "Level of verbosity in error logging" },
-{ "NameVirtualHost", ap_set_name_virtual_host, NULL, RSRC_CONF, TAKE1,
+{ "NameVirtualHost", ap_set_name_virtual_host, NULL, RSRC_CONF, TAKE12,
   "A numeric IP address:port, or the name of a host" },
 #ifdef _OSD_POSIX
 { "BS2000Account", set_bs2000_account, NULL, RSRC_CONF, TAKE1,
diff -Nur apache_1.3.23.orig/src/main/http_main.c apache_1.3.23/src/main/http_main.c
--- apache_1.3.23.orig/src/main/http_main.c	Wed Feb  6 20:17:43 2002
+++ apache_1.3.23/src/main/http_main.c	Wed Feb  6 20:29:52 2002
@@ -124,6 +124,8 @@
 #include <bstring.h>		/* for IRIX, FD_SET calls bzero() */
 #endif
 
+#include "sa_len.h"
+
 #ifdef MULTITHREAD
 /* special debug stuff -- PCS */
 
@@ -249,7 +251,12 @@
 API_VAR_EXPORT char *ap_scoreboard_fname=NULL;
 API_VAR_EXPORT char *ap_lock_fname=NULL;
 API_VAR_EXPORT char *ap_server_argv0=NULL;
-API_VAR_EXPORT struct in_addr ap_bind_address={0};
+#ifdef INET6
+API_VAR_EXPORT int ap_default_family = PF_INET6;
+#else
+API_VAR_EXPORT int ap_default_family = PF_INET;
+#endif
+API_VAR_EXPORT struct sockaddr_storage ap_bind_address={0};
 API_VAR_EXPORT int ap_daemons_to_start=0;
 API_VAR_EXPORT int ap_daemons_min_free=0;
 API_VAR_EXPORT int ap_daemons_max_free=0;
@@ -1384,7 +1391,11 @@
     fprintf(stderr, "Usage: %s [-D name] [-d directory] [-f file]\n", bin);
 #endif
     fprintf(stderr, "       %s [-C \"directive\"] [-c \"directive\"]\n", pad);
-    fprintf(stderr, "       %s [-v] [-V] [-h] [-l] [-L] [-S] [-t] [-T]\n", pad);
+    fprintf(stderr, "       %s [-v] [-V] [-h] [-l] [-L] [-S] [-t] [-T]"
+#ifdef INET6
+	    " [-46]"
+#endif
+	    "\n", pad);
     fprintf(stderr, "Options:\n");
 #ifdef SHARED_CORE
     fprintf(stderr, "  -R directory     : specify an alternate location for shared object files\n");
@@ -1406,6 +1417,10 @@
 #endif
     fprintf(stderr, "  -t               : run syntax check for config files (with docroot check)\n");
     fprintf(stderr, "  -T               : run syntax check for config files (without docroot check)\n");
+#ifdef INET6
+    fprintf(stderr, "  -4               : assume IPv4 on parsing configuration file\n");
+    fprintf(stderr, "  -6               : assume IPv6 on parsing configuration file\n");
+#endif
 #ifdef WIN32
     fprintf(stderr, "  -n name          : name the Apache service for -k options below;\n");
     fprintf(stderr, "  -k stop|shutdown : tell running Apache to shutdown\n");
@@ -3566,11 +3581,13 @@
 
 
 static conn_rec *new_connection(pool *p, server_rec *server, BUFF *inout,
-			     const struct sockaddr_in *remaddr,
-			     const struct sockaddr_in *saddr,
+			     const struct sockaddr *remaddr,
+			     const struct sockaddr *saddr,
 			     int child_num)
 {
     conn_rec *conn = (conn_rec *) ap_pcalloc(p, sizeof(conn_rec));
+    char hostnamebuf[MAXHOSTNAMELEN];
+    size_t addr_len;
 
     /* Got a connection structure, so initialize what fields we can
      * (the rest are zeroed out by pcalloc).
@@ -3579,17 +3596,29 @@
     conn->child_num = child_num;
 
     conn->pool = p;
-    conn->local_addr = *saddr;
-    conn->local_ip = ap_pstrdup(conn->pool,
-				inet_ntoa(conn->local_addr.sin_addr));
+#ifndef SIN6_LEN
+    addr_len = SA_LEN(saddr);
+#else 
+    addr_len = saddr->sa_len;
+#endif
+    memcpy(&conn->local_addr, saddr, addr_len); 
+    getnameinfo((struct sockaddr *)&conn->local_addr, addr_len,
+	     hostnamebuf, sizeof(hostnamebuf), NULL, 0, NI_NUMERICHOST);  
+    conn->local_ip = ap_pstrdup(conn->pool, hostnamebuf);
     conn->server = server; /* just a guess for now */
     ap_update_vhost_given_ip(conn);
     conn->base_server = conn->server;
     conn->client = inout;
 
-    conn->remote_addr = *remaddr;
-    conn->remote_ip = ap_pstrdup(conn->pool,
-			      inet_ntoa(conn->remote_addr.sin_addr));
+#ifndef SIN6_LEN 
+    addr_len = SA_LEN(remaddr);
+#else 
+    addr_len = remaddr->sa_len;
+#endif
+    memcpy(&conn->remote_addr, remaddr, addr_len);
+    getnameinfo((struct sockaddr *)&conn->remote_addr, addr_len,
+	    hostnamebuf, sizeof(hostnamebuf), NULL, 0, NI_NUMERICHOST);
+    conn->remote_ip = ap_pstrdup(conn->pool, hostnamebuf);           
 #ifdef EAPI
     conn->ctx = ap_ctx_new(conn->pool);
 #endif /* EAPI */
@@ -3640,21 +3669,47 @@
 #define sock_disable_nagle(s)	/* NOOP */
 #endif
 
-static int make_sock(pool *p, const struct sockaddr_in *server)
+static int make_sock(pool *p, const struct sockaddr *server)
 {
     int s;
     int one = 1;
-    char addr[512];
+    char addr[INET6_ADDRSTRLEN + 128];
+    char a0[INET6_ADDRSTRLEN];
+    char p0[NI_MAXSERV];
+#ifdef MPE
+    int privport = 0;
+#endif
 
-    if (server->sin_addr.s_addr != htonl(INADDR_ANY))
-	ap_snprintf(addr, sizeof(addr), "address %s port %d",
-		inet_ntoa(server->sin_addr), ntohs(server->sin_port));
-    else
-	ap_snprintf(addr, sizeof(addr), "port %d", ntohs(server->sin_port));
+    switch(server->sa_family){
+    case AF_INET:
+#ifdef INET6
+    case AF_INET6:
+#endif
+      break;
+    default:
+      ap_log_error(APLOG_MARK, APLOG_CRIT, server_conf,
+                   "make_sock: unsupported address family %u", 
+		   server->sa_family);
+      ap_unblock_alarms();
+      exit(1);
+    }
+    
+    getnameinfo(server,
+#ifndef SIN6_LEN
+		SA_LEN(server),
+#else
+		server->sa_len,
+#endif
+		a0, sizeof(a0), p0, sizeof(p0), NI_NUMERICHOST | NI_NUMERICSERV);
+    ap_snprintf(addr, sizeof(addr), "address %s port %s", a0, p0);
+#ifdef MPE
+    if (atoi(p0) < 1024)
+      privport++;
+#endif
 
     /* note that because we're about to slack we don't use psocket */
     ap_block_alarms();
-    if ((s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+    if ((s = socket(server->sa_family, SOCK_STREAM, IPPROTO_TCP)) == -1) {
 	    ap_log_error(APLOG_MARK, APLOG_CRIT, server_conf,
 		    "make_sock: failed to get a socket for %s", addr);
 
@@ -3757,15 +3812,19 @@
 
 #ifdef MPE
 /* MPE requires CAP=PM and GETPRIVMODE to bind to ports less than 1024 */
-    if (ntohs(server->sin_port) < 1024)
+    if (privport)
 	GETPRIVMODE();
 #endif
-
-    if (bind(s, (struct sockaddr *) server, sizeof(struct sockaddr_in)) == -1) {
+#ifndef SIN6_LEN
+    if (bind(s, server, SA_LEN(server)) == -1)
+#else
+    if (bind(s, server, server->sa_len) == -1)
+#endif
+    {
 	ap_log_error(APLOG_MARK, APLOG_CRIT, server_conf,
 	    "make_sock: could not bind to %s", addr);
 #ifdef MPE
-	if (ntohs(server->sin_port) < 1024)
+	if (privport)
 	    GETUSERMODE();
 #endif
 
@@ -3778,7 +3837,7 @@
 	exit(1);
     }
 #ifdef MPE
-    if (ntohs(server->sin_port) < 1024)
+    if (privport)
 	GETUSERMODE();
 #endif
 
@@ -3931,15 +3990,17 @@
     for (;;) {
 	fd = find_listener(lr);
 	if (fd < 0) {
-	    fd = make_sock(p, &lr->local_addr);
+	    fd = make_sock(p, (struct sockaddr *)&lr->local_addr);
 	}
 	else {
 	    ap_note_cleanups_for_socket(p, fd);
 	}
 	/* if we get here, (fd >= 0) && (fd < FD_SETSIZE) */
-	FD_SET(fd, &listenfds);
-	if (fd > listenmaxfd)
-	    listenmaxfd = fd;
+	if (fd > 0) {
+	    FD_SET(fd, &listenfds);
+	    if (fd > listenmaxfd)
+		listenmaxfd = fd;
+	}
 	lr->fd = fd;
 	if (lr->next == NULL)
 	    break;
@@ -4257,8 +4318,8 @@
 static void child_main(int child_num_arg)
 {
     NET_SIZE_T clen;
-    struct sockaddr sa_server;
-    struct sockaddr sa_client;
+    struct sockaddr_storage sa_server;
+    struct sockaddr_storage sa_client;
     listen_rec *lr;
 
     /* All of initialization is a critical section, we don't care if we're
@@ -4423,7 +4484,7 @@
 	    usr1_just_die = 0;
 	    for (;;) {
 		clen = sizeof(sa_client);
-		csd = ap_accept(sd, &sa_client, &clen);
+		csd = ap_accept(sd, (struct sockaddr *)&sa_client, &clen);
 		if (csd >= 0 || errno != EINTR)
 		    break;
 		if (deferred_die) {
@@ -4586,7 +4647,7 @@
 	 */
 
 	clen = sizeof(sa_server);
-	if (getsockname(csd, &sa_server, &clen) < 0) {
+	if (getsockname(csd, (struct sockaddr *)&sa_server, &clen) < 0) {
 	    ap_log_error(APLOG_MARK, APLOG_ERR, server_conf, "getsockname");
 	    continue;
 	}
@@ -4631,8 +4692,8 @@
 	ap_bpushfd(conn_io, csd, dupped_csd);
 
 	current_conn = new_connection(ptrans, server_conf, conn_io,
-				          (struct sockaddr_in *) &sa_client,
-				          (struct sockaddr_in *) &sa_server,
+				          (struct sockaddr *)&sa_client,
+				          (struct sockaddr *)&sa_server,
 				          my_child_num);
 
 	/*
@@ -4776,12 +4837,13 @@
 
 #ifdef _OSD_POSIX
     /* BS2000 requires a "special" version of fork() before a setuid() call */
-    if ((pid = os_fork(ap_user_name)) == -1) {
+    if ((pid = os_fork(ap_user_name)) == -1)
 #elif defined(TPF)
-    if ((pid = os_fork(s, slot)) == -1) {
+    if ((pid = os_fork(s, slot)) == -1)
 #else
-    if ((pid = fork()) == -1) {
+    if ((pid = fork()) == -1)
 #endif
+    {
 	ap_log_error(APLOG_MARK, APLOG_ERR, s, "fork: Unable to fork new process");
 
 	/* fork didn't succeed. Fix the scoreboard or else
@@ -5390,7 +5452,10 @@
     ap_setup_prelinked_modules();
 
     while ((c = getopt(argc, argv,
-				    "D:C:c:xXd:f:vVlLR:StTh"
+				    "D:C:c:xXd:f:vVlLR:StTh4"
+#ifdef INET6
+				    "6"
+#endif
 #ifdef DEBUG_SIGSTOP
 				    "Z:"
 #endif
@@ -5465,8 +5530,14 @@
 	    ap_configtestonly = 1;
 	    ap_docrootcheck = 0;
 	    break;
-	case 'h':
-	    usage(argv[0]);
+	case '4':
+	    ap_default_family = PF_INET;
+	    break;
+#ifdef INET6
+	case '6':
+	    ap_default_family = PF_INET6;
+	    break;
+#endif
 	case '?':
 	    usage(argv[0]);
 	}
@@ -5546,9 +5617,10 @@
     else {
 	conn_rec *conn;
 	request_rec *r;
-	struct sockaddr sa_server, sa_client;
 	BUFF *cio;
+	struct sockaddr_storage sa_server, sa_client;
 	NET_SIZE_T l;
+	char servbuf[NI_MAXSERV];
 
 	ap_set_version();
 	/* Yes this is called twice. */
@@ -5595,25 +5667,32 @@
 #endif
 
 	l = sizeof(sa_client);
-	if ((getpeername(sock_in, &sa_client, &l)) < 0) {
+	if ((getpeername(sock_in, (struct sockaddr *)&sa_client, &l)) < 0) {
 /* get peername will fail if the input isn't a socket */
 	    perror("getpeername");
 	    memset(&sa_client, '\0', sizeof(sa_client));
 	}
 
 	l = sizeof(sa_server);
-	if (getsockname(sock_in, &sa_server, &l) < 0) {
+	if (getsockname(sock_in, (struct sockaddr *)&sa_server, &l) < 0) {
 	    perror("getsockname");
 	    fprintf(stderr, "Error getting local address\n");
 	    exit(1);
 	}
-	server_conf->port = ntohs(((struct sockaddr_in *) &sa_server)->sin_port);
+	if (getnameinfo(((struct sockaddr *)&sa_server), l,
+			NULL, 0, servbuf, sizeof(servbuf), 
+			NI_NUMERICSERV)){
+	    fprintf(stderr, "getnameinfo(): family=%d\n", sa_server.ss_family);
+	    exit(1);
+	}
+	servbuf[sizeof(servbuf)-1] = '\0';
+	server_conf->port = atoi(servbuf);
 	cio = ap_bcreate(ptrans, B_RDWR | B_SOCKET);
         cio->fd = sock_out;
         cio->fd_in = sock_in;
 	conn = new_connection(ptrans, server_conf, cio,
-			          (struct sockaddr_in *) &sa_client,
-			          (struct sockaddr_in *) &sa_server, -1);
+			          (struct sockaddr *)&sa_client,
+			          (struct sockaddr *)&sa_server, -1);
 
 	while ((r = ap_read_request(conn)) != NULL) {
 
@@ -7820,7 +7899,11 @@
      * but only handle the -L option 
      */
     llp_dir = SHARED_CORE_DIR;
-    while ((c = getopt(argc, argv, "D:C:c:Xd:f:vVlLR:SZ:tTh")) != -1) {
+    while ((c = getopt(argc, argv, "D:C:c:Xd:f:vVlLR:SZ:tTh4"
+#ifdef INET6
+		"6"
+#endif
+		)) != -1) {
 	switch (c) {
 	case 'D':
 	case 'C':
@@ -7837,6 +7920,10 @@
 	case 't':
 	case 'T':
 	case 'h':
+	case '4':
+#ifdef INET6
+	case '6':
+#endif
 	case '?':
 	    break;
 	case 'R':
diff -Nur apache_1.3.23.orig/src/main/http_vhost.c apache_1.3.23/src/main/http_vhost.c
--- apache_1.3.23.orig/src/main/http_vhost.c	Mon Jan 21 00:13:51 2002
+++ apache_1.3.23/src/main/http_vhost.c	Wed Feb  6 20:30:51 2002
@@ -68,6 +68,7 @@
 #include "http_log.h"
 #include "http_vhost.h"
 #include "http_protocol.h"
+#include "sa_len.h"
 
 /*
  * After all the definitions there's an explanation of how it's all put
@@ -165,78 +166,114 @@
  * *paddr is the variable used to keep track of **paddr between calls
  * port is the default port to assume
  */
-static const char *get_addresses(pool *p, char *w, server_addr_rec ***paddr,
-			    unsigned port)
+static const char *get_addresses(pool *p, char *w, char *pstr,
+	server_addr_rec ***paddr, unsigned port)
 {
-    struct hostent *hep;
-    unsigned long my_addr;
+    struct addrinfo hints, *res, *res0;
     server_addr_rec *sar;
-    char *t;
-    int i, is_an_ip_addr;
+    char *t = NULL, *u = NULL, *v = NULL;
+    char *hoststr = NULL, *portstr = NULL;
+    char portpool[10];
+    int error;
+    char servbuf[NI_MAXSERV];
 
-    if (*w == 0)
+    if (w == 0 || *w == 0)
 	return NULL;
 
-    t = strchr(w, ':');
-    if (t) {
-	if (strcmp(t + 1, "*") == 0) {
-	    port = 0;
+    portstr = portpool;
+    ap_snprintf(portpool, sizeof(portpool), "%u", port);
+    if (!pstr) {
+	v = w;
+	u = NULL;
+	if (*w == '['){
+	    u = strrchr(w, ']');
+	    if (u) {	/* [host]:port or [host] */
+		w++;
+		*u = '\0';
+		v = u + 1;
+	    }
 	}
-	else if ((i = atoi(t + 1))) {
-	    port = i;
+	/*        w   uv     ,       w=v        , w=v  */  
+	/* u!=0: [host]:port , u==0: [host:port , host */
+	t = strchr(v, ':');
+	if (t != NULL && strchr(t+1, ':') == NULL) {
+	    /* [host]:port-w/o-colons, host-without-colons:port-w/o-colons */
+	    *t = '\0';
+	    portstr = t + 1;
 	}
 	else {
-	    return ":port must be numeric";
+	    portstr = "0";
 	}
-	*t = 0;
+    } else {
+	portstr = pstr;
     }
 
-    is_an_ip_addr = 0;
-    if (strcmp(w, "*") == 0) {
-	my_addr = htonl(INADDR_ANY);
-	is_an_ip_addr = 1;
-    }
-    else if (strcasecmp(w, "_default_") == 0
-	     || strcmp(w, "255.255.255.255") == 0) {
-	my_addr = DEFAULT_VHOST_ADDR;
-	is_an_ip_addr = 1;
-    }
-    else if ((my_addr = ap_inet_addr(w)) != INADDR_NONE) {
-	is_an_ip_addr = 1;
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_socktype = SOCK_STREAM;
+    if (strcmp(w, "*") == 0 || strlen(w) == 0) {
+	hoststr = NULL;
+	hints.ai_family = PF_UNSPEC;
+	hints.ai_flags = AI_PASSIVE;
+    }
+    else if (strcasecmp(w, "_default4_") == 0 ||
+	     ((ap_default_family == PF_INET
+#ifndef INET6
+	       || ap_default_family == PF_UNSPEC
+#endif
+	       ) && strcasecmp(w, "_default_") == 0)){
+	hoststr = "255.255.255.255";
+	hints.ai_family = PF_INET;
+    }
+#ifdef INET6
+    else if (strcasecmp(w, "_default6_") == 0 ||
+	     ((ap_default_family == PF_INET6
+	       || ap_default_family == PF_UNSPEC
+	       ) && strcasecmp(w, "_default_") == 0)){
+	hoststr = "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff";
+	hints.ai_family = PF_INET6;
     }
-    if (is_an_ip_addr) {
-	sar = ap_pcalloc(p, sizeof(server_addr_rec));
-	**paddr = sar;
-	*paddr = &sar->next;
-	sar->host_addr.s_addr = my_addr;
-	sar->host_port = port;
-	sar->virthost = ap_pstrdup(p, w);
-	if (t != NULL)
-	    *t = ':';
-	return NULL;
+#endif
+    else{
+	hoststr = w;
+	hints.ai_family = PF_UNSPEC;
     }
 
-    hep = gethostbyname(w);
-
-    if ((!hep) || (hep->h_addrtype != AF_INET || !hep->h_addr_list[0])) {
+    error = getaddrinfo(hoststr, portstr, &hints, &res0);
+    if (error || !res0) {
 	ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, NULL,
-	    "Cannot resolve host name %s --- ignoring!", w);
-	if (t != NULL)
-	    *t = ':';
+	    "Cannot resolve host %s port %s --- ignoring!", hoststr, portstr);
+	if (t != NULL) *t = ':';
+	if (u != NULL) *u = ']';
 	return NULL;
     }
-
-    for (i = 0; hep->h_addr_list[i]; ++i) {
+    for (res=res0; res; res=res->ai_next) {
+	switch (res->ai_addr->sa_family) {
+	case AF_INET:
+#ifdef INET6
+	case AF_INET6:
+#endif
+	    break;
+	default:
+	    ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, NULL,
+			 "Unsupported address family %u, for host %s port %s --- ignoring!",
+			 res->ai_addr->sa_family, hoststr, portstr);
+	    continue;
+	}
 	sar = ap_pcalloc(p, sizeof(server_addr_rec));
 	**paddr = sar;
 	*paddr = &sar->next;
-	sar->host_addr = *(struct in_addr *) hep->h_addr_list[i];
-	sar->host_port = port;
+	memcpy(&sar->host_addr, res->ai_addr, res->ai_addrlen);
+	if (getnameinfo(res->ai_addr, res->ai_addrlen, NULL, 0, servbuf,
+			sizeof(servbuf), NI_NUMERICSERV) == 0)
+		sar->host_port = atoi(servbuf);
+	else
+		sar->host_port = 0;
 	sar->virthost = ap_pstrdup(p, w);
     }
 
-    if (t != NULL)
-	*t = ':';
+    freeaddrinfo(res0);
+    if (t != NULL) *t = ':';
+    if (u != NULL) *u = ']';
     return NULL;
 }
 
@@ -250,7 +287,8 @@
     /* start the list of addreses */
     addrs = &s->addrs;
     while (hostname[0]) {
-	err = get_addresses(p, ap_getword_conf(p, &hostname), &addrs, s->port);
+	err = get_addresses(p, ap_getword_conf(p, &hostname), NULL,
+		&addrs, s->port);
 	if (err) {
 	    *addrs = NULL;
 	    return err;
@@ -268,10 +306,11 @@
 }
 
 
-API_EXPORT_NONSTD(const char *) ap_set_name_virtual_host (cmd_parms *cmd, void *dummy, char *arg)
+API_EXPORT_NONSTD(const char *) ap_set_name_virtual_host (cmd_parms *cmd, void *dummy, char *h, 
+	char *p)
 {
     /* use whatever port the main server has at this point */
-    return get_addresses(cmd->pool, arg, &name_vhost_list_tail,
+    return get_addresses(cmd->pool, h, p, &name_vhost_list_tail,
 			    cmd->server->port);
 }
 
@@ -345,6 +384,19 @@
     return ((key >> 8) ^ key) % IPHASH_TABLE_SIZE;
 }
 
+static unsigned hash_addr(struct sockaddr *sa)
+{
+    switch (sa->sa_family) {
+    case AF_INET:
+	return hash_inaddr(((struct sockaddr_in *)sa)->sin_addr.s_addr);
+#ifdef INET6
+    case AF_INET6:
+	return hash_inaddr(((struct sockaddr_in6 *)sa)->sin6_addr.s6_addr[12]);
+#endif
+    default:
+	return hash_inaddr(sa->sa_family);
+    }
+}
 
 
 static ipaddr_chain *new_ipaddr_chain(pool *p,
@@ -372,25 +424,77 @@
     return new;
 }
 
-
-static ap_inline ipaddr_chain *find_ipaddr(struct in_addr *server_ip,
-    unsigned port)
+static ap_inline ipaddr_chain *find_ipaddr(struct sockaddr *sa)
 {
     unsigned bucket;
     ipaddr_chain *trav;
-    unsigned addr;
+    char a[NI_MAXHOST], b[NI_MAXHOST];
 
     /* scan the hash table for an exact match first */
-    addr = server_ip->s_addr;
-    bucket = hash_inaddr(addr);
+    bucket = hash_addr(sa);
     for (trav = iphash_table[bucket]; trav; trav = trav->next) {
 	server_addr_rec *sar = trav->sar;
-	if ((sar->host_addr.s_addr == addr)
-	    && (sar->host_port == 0 || sar->host_port == port
-		|| port == 0)) {
-	    return trav;
+	if (sar->host_addr.ss_family != sa->sa_family)
+	    continue;
+	switch (sa->sa_family) {
+	case AF_INET:
+	  {
+	    struct sockaddr_in *sin1, *sin2;
+	    sin1 = (struct sockaddr_in *)&sar->host_addr;
+	    sin2 = (struct sockaddr_in *)sa;
+	    if (sin1->sin_port == 0 || sin2->sin_port == 0
+	     || sin1->sin_port == sin2->sin_port) {
+		if (memcmp(&sin1->sin_addr, &sin2->sin_addr,
+			sizeof(sin1->sin_addr)) == 0) {
+		    return trav;
+		}
+	    }
+	    break;
+	  }
+#ifdef INET6
+	case AF_INET6:
+	  {
+	    struct sockaddr_in6 *sin1, *sin2;
+	    sin1 = (struct sockaddr_in6 *)&sar->host_addr;
+	    sin2 = (struct sockaddr_in6 *)sa;
+	    if (sin1->sin6_port == 0 || sin2->sin6_port == 0
+	     || sin1->sin6_port == sin2->sin6_port) {
+		if (memcmp(&sin1->sin6_addr, &sin2->sin6_addr,
+			sizeof(sin1->sin6_addr)) == 0) {
+		    return trav;
+		}
+	    }
+	    break;
+	  }
+#endif
+	default: /*unsupported*/
+	    break;
 	}
     }
+
+#ifdef INET6
+    if (sa->sa_family == AF_INET6 &&
+	IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)sa)->sin6_addr)) {
+	/*
+	 * This is just horrible.  I just hate IPv4 mapped address.  It
+	 * complicates access control too much.
+	 * Due to hashed lookup, we need to visit it again.
+	 */
+	struct sockaddr_in sin;
+
+	memset(&sin, 0, sizeof(sin));
+	sin.sin_family = AF_INET;
+#ifdef SIN6_LEN
+	sin.sin_len = sizeof(sin);
+#endif
+	sin.sin_port = ((struct sockaddr_in6 *)sa)->sin6_port;
+	memcpy(&sin.sin_addr,
+	    &((struct sockaddr_in6 *)sa)->sin6_addr.s6_addr[12],
+	    sizeof(sin.sin_addr));
+	return find_ipaddr((struct sockaddr *)&sin);
+    }
+#endif
+
     return NULL;
 }
 
@@ -416,21 +520,7 @@
     int len;
     char buf[MAX_STRING_LEN];
 
-    if (ic->sar->host_addr.s_addr == DEFAULT_VHOST_ADDR) {
-	len = ap_snprintf(buf, sizeof(buf), "_default_:%u",
-		ic->sar->host_port);
-    }
-    else if (ic->sar->host_addr.s_addr == INADDR_ANY) {
-	len = ap_snprintf(buf, sizeof(buf), "*:%u",
-		ic->sar->host_port);
-    }
-    else {
-	len = ap_snprintf(buf, sizeof(buf), "%pA:%u",
-		&ic->sar->host_addr, ic->sar->host_port);
-    }
-    if (ic->sar->host_port == 0) {
-	buf[len-1] = '*';
-    }
+    len = ap_snprintf(buf, sizeof(buf), "%pI", &ic->sar->host_addr);
     if (ic->names == NULL) {
 	if (ic->server == NULL)
 	    fprintf(f, "%-22s WARNING: No <VirtualHost> defined for this NameVirtualHost!\n", buf);
@@ -558,10 +648,37 @@
      * occured in the config file, we'll copy it in that order.
      */
     for (sar = name_vhost_list; sar; sar = sar->next) {
-	unsigned bucket = hash_inaddr(sar->host_addr.s_addr);
+	unsigned bucket = hash_addr((struct sockaddr *)&sar->host_addr);
 	ipaddr_chain *ic = new_ipaddr_chain(p, NULL, sar);
+	int wildcard;
+
+	wildcard = 0;
+	switch (sar->host_addr.ss_family) {
+	case AF_INET:
+	  {
+	    struct sockaddr_in *sin;
+	    sin = (struct sockaddr_in *)&sar->host_addr;
+	    if (sin->sin_addr.s_addr == INADDR_ANY)
+		wildcard++;
+	    break;
+	  }
+#ifdef INET6
+	case AF_INET6:
+	  {
+	    struct sockaddr_in6 *sin6;
+	    sin6 = (struct sockaddr_in6 *)&sar->host_addr;
+	    if (*(ap_uint32_t *)&sin6->sin6_addr.s6_addr[0] == 0
+	     && *(ap_uint32_t *)&sin6->sin6_addr.s6_addr[4] == 0
+	     && *(ap_uint32_t *)&sin6->sin6_addr.s6_addr[8] == 0
+	     && *(ap_uint32_t *)&sin6->sin6_addr.s6_addr[12] == 0) {
+		wildcard++;
+	    }
+	    break;
+	  }
+#endif
+	}
 
-	if (sar->host_addr.s_addr != INADDR_ANY) {
+	if (!wildcard) {
 	    *iphash_table_tail[bucket] = ic;
 	    iphash_table_tail[bucket] = &ic->next;
 	}
@@ -588,12 +705,45 @@
 	has_default_vhost_addr = 0;
 	for (sar = s->addrs; sar; sar = sar->next) {
 	    ipaddr_chain *ic;
+	    int wildcard;
+
+	    wildcard = 0;
+	    switch (sar->host_addr.ss_family) {
+	    case AF_INET:
+	      {
+		struct sockaddr_in *sin;
+		sin = (struct sockaddr_in *)&sar->host_addr;
+		if (sin->sin_addr.s_addr == DEFAULT_VHOST_ADDR)
+		    wildcard++;
+		else if (sin->sin_addr.s_addr == INADDR_ANY)
+		    wildcard++;
+		break;
+	      }
+#ifdef INET6
+	    case AF_INET6:
+	      {
+		struct sockaddr_in6 *sin6;
+		sin6 = (struct sockaddr_in6 *)&sar->host_addr;
+		if (*(ap_uint32_t *)&sin6->sin6_addr.s6_addr[0] == ~0
+		 && *(ap_uint32_t *)&sin6->sin6_addr.s6_addr[4] == ~0
+		 && *(ap_uint32_t *)&sin6->sin6_addr.s6_addr[8] == ~0
+		 && *(ap_uint32_t *)&sin6->sin6_addr.s6_addr[12] == ~0) {
+		    wildcard++;
+		}
+		break;
+	      }
+#endif
+	    }
 
-	    if (sar->host_addr.s_addr == DEFAULT_VHOST_ADDR
-		|| sar->host_addr.s_addr == INADDR_ANY) {
-		ic = find_default_server(sar->host_port);
-		if (!ic || !add_name_vhost_config(p, main_s, s, sar, ic)) {
-		    if (ic && ic->sar->host_port != 0) {
+	    if (wildcard) {
+		/* add it to default bucket for each appropriate sar
+		 * since we need to do a port test
+		 */
+		ipaddr_chain *other;
+
+		other = find_default_server(sar->host_port);
+		if (!other || !add_name_vhost_config(p, main_s, s, sar, other)) {
+		    if (other && other->sar->host_port != 0) {
 			ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_WARNING,
 			    main_s, "_default_ VirtualHost overlap on port %u,"
 			    " the first has precedence", sar->host_port);
@@ -606,10 +756,11 @@
 	    }
 	    else {
 		/* see if it matches something we've already got */
-		ic = find_ipaddr(&sar->host_addr, sar->host_port);
+		ic = find_ipaddr((struct sockaddr *)&sar->host_addr);
 
 		if (!ic) {
-		    unsigned bucket = hash_inaddr(sar->host_addr.s_addr);
+		    unsigned bucket =
+		        hash_addr((struct sockaddr *)&sar->host_addr);
 
 		    ic = new_ipaddr_chain(p, s, sar);
 		    ic->next = *iphash_table_tail[bucket];
@@ -646,19 +797,33 @@
 	    }
 	    else {
 		struct hostent *h;
+		char hostnamebuf[MAXHOSTNAMELEN];
 
-		if ((h = gethostbyaddr((char *) &(s->addrs->host_addr),
-					sizeof(struct in_addr), AF_INET))) {
-		    s->server_hostname = ap_pstrdup(p, (char *) h->h_name);
+		if (!getnameinfo((struct sockaddr *)&s->addrs->host_addr,
+#ifndef SIN6_LEN
+			SA_LEN((struct sockaddr *)&s->addrs->host_addr),
+#else	
+			s->addrs->host_addr.ss_len,
+#endif
+			hostnamebuf, sizeof(hostnamebuf),
+			NULL, 0, 0)) {
+		    s->server_hostname = ap_pstrdup(p, hostnamebuf);
 		}
 		else {
 		    /* again, what can we do?  They didn't specify a
 		       ServerName, and their DNS isn't working. -djg */
+		    getnameinfo((struct sockaddr *)&s->addrs->host_addr,
+#ifndef SIN6_LEN
+			SA_LEN((struct sockaddr *)&s->addrs->host_addr),
+#else	
+			s->addrs->host_addr.ss_len,
+#endif
+			hostnamebuf, sizeof(hostnamebuf),
+			NULL, 0, NI_NUMERICHOST);
 		    ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, main_s,
 			    "Failed to resolve server name "
 			    "for %s (check DNS) -- or specify an explicit "
-			    "ServerName",
-			    inet_ntoa(s->addrs->host_addr));
+			    "ServerName", hostnamebuf);
 		    s->server_hostname =
 			ap_pstrdup(p, "bogus_host_without_reverse_dns");
 		}
@@ -705,35 +870,58 @@
     char *host = ap_palloc(r->pool, strlen(r->hostname) + 1);
     const char *src;
     char *dst;
+    const char *u = NULL, *v = NULL;
 
     /* check and copy the host part */
-    src = r->hostname;
+    u = src = r->hostname;
 
     dst = host;
-    while (*src) {
-	if (*src == '.') {
-	    *dst++ = *src++;
-	    if (*src == '.')
-		goto bad;
-	    else
-		continue;
-	}
-	if (*src == '/' || *src == '\\') {
-	    goto bad;
-	}
-        if (*src == ':') {
-            /* check the port part */
-            while (*++src) {
-                if (!ap_isdigit(*src)) {
-                    goto bad;
-                }
-            }
-            if (src[-1] == ':')
-                goto bad;
-            else
-                break;
+     if (*u == '[') { /* IPv6 numeral address in brackets */
+         v = strchr(u, ']');
+       if (v == NULL) {
+           /* missing closing bracket */
+             goto bad;
+       }
+         if (v == (u + 1)) {
+             /* bad empty address */
+             goto bad;
+       }
+       for (src = u+1; src < v; src++)  /* copy IPv6 adress */
+           *dst = *src;
+       v++;
+       if (*v == ':') {
+          v++;
+          while (*v) {  /* check if portnum is correct */
+              if (!ap_isdigit(*v++))
+                  goto bad;
+          }
         }
-	*dst++ = *src++;
+     } else {
+         while (*src) {
+           if (*src == '.') {
+               *dst++ = *src++;
+               if (*src == '.')
+                   goto bad;
+               else
+                   continue;
+           }
+           if (*src == '/' || *src == '\\') {
+               goto bad;
+           }
+           if (*src == ':') {
+               /* sheck the port part */
+               while (*++src) {
+                   if (!ap_isdigit(*src)) {
+                       goto bad;
+                   }
+               }
+               if (src[-1] == ':')
+                   goto bad;
+               else
+                   break;
+           }
+           *dst++ = *src++;
+         }
     }
     /* strip trailing gubbins */
     if (dst > host && dst[-1] == '.') {
@@ -748,7 +936,7 @@
 bad:
     r->status = HTTP_BAD_REQUEST;
     ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r,
-		  "Client sent malformed Host header");
+		  "Client sent malformed Host header <<%s>>",u);
     return;
 }
 
@@ -851,11 +1039,25 @@
      *   names we'll match have ports associated with them
      */
     const char *host = r->hostname;
-    unsigned port = ntohs(r->connection->local_addr.sin_port);
+    unsigned port;
     server_rec *s;
     server_rec *last_s;
     name_chain *src;
 
+    switch (r->connection->local_addr.ss_family) {
+    case AF_INET:
+    	port = ntohs(((struct sockaddr_in *)
+		    &r->connection->local_addr)->sin_port);
+	break;
+#ifdef INET6
+    case AF_INET6:
+    	port = ntohs(((struct sockaddr_in6 *)
+		    &r->connection->local_addr)->sin6_port);
+	break;
+#endif
+    default:
+	port = 0;	/*XXX*/
+    }
     last_s = NULL;
 
     /* Recall that the name_chain is a list of server_addr_recs, some of
@@ -910,7 +1112,22 @@
     server_rec *s;
     server_rec *last_s;
     name_chain *src;
-    unsigned port = ntohs(r->connection->local_addr.sin_port);
+    unsigned port;
+
+    switch (r->connection->local_addr.ss_family) {
+    case AF_INET:
+    	port = ntohs(((struct sockaddr_in *)
+		    &r->connection->local_addr)->sin_port);
+	break;
+#ifdef INET6
+    case AF_INET6:
+    	port = ntohs(((struct sockaddr_in6 *)
+		    &r->connection->local_addr)->sin6_port);
+	break;
+#endif
+    default:
+	port = 0;	/*XXX*/
+    }
 
     /*
      * This is in conjunction with the ServerPath code in http_core, so we
@@ -970,10 +1187,22 @@
 API_EXPORT(void) ap_update_vhost_given_ip(conn_rec *conn)
 {
     ipaddr_chain *trav;
-    unsigned port = ntohs(conn->local_addr.sin_port);
+    char portbuf[NI_MAXSERV];
+    unsigned port;
+
+    if (getnameinfo((struct sockaddr *)&conn->local_addr,
+#ifndef SIN6_LEN
+	SA_LEN((struct sockaddr *)&conn->local_addr),
+#else	
+	conn->local_addr.ss_len,
+#endif
+	NULL, 0, portbuf, sizeof(portbuf), NI_NUMERICSERV) != 0) {
+	goto fail;
+    }
+    port = atoi(portbuf);
 
     /* scan the hash table for an exact match first */
-    trav = find_ipaddr(&conn->local_addr.sin_addr, port);
+    trav = find_ipaddr((struct sockaddr *)&conn->local_addr);
     if (trav) {
 	/* save the name_chain for later in case this is a name-vhost */
 	conn->vhost_lookup_data = trav->names;
@@ -991,6 +1220,7 @@
 	return;
     }
 
+fail:
     /* otherwise we're stuck with just the main server
      * and no name-based vhosts
      */
diff -Nur apache_1.3.23.orig/src/main/rfc1413.c apache_1.3.23/src/main/rfc1413.c
--- apache_1.3.23.orig/src/main/rfc1413.c	Sun Jan 20 21:14:37 2002
+++ apache_1.3.23/src/main/rfc1413.c	Wed Feb  6 20:20:48 2002
@@ -82,6 +82,7 @@
 #include "http_log.h"		/* for aplog_error */
 #include "rfc1413.h"
 #include "http_main.h"		/* set_callback_and_alarm */
+#include "sa_len.h"
 
 /* Local stuff. */
 /* Semi-well-known port */
@@ -109,12 +110,13 @@
 
 /* bind_connect - bind both ends of a socket */
 /* Ambarish fix this. Very broken */
-static int get_rfc1413(int sock, const struct sockaddr_in *our_sin,
-		       const struct sockaddr_in *rmt_sin, 
+static int get_rfc1413(int sock, const struct sockaddr *our_sin,
+		       const struct sockaddr *rmt_sin, 
 		       char user[RFC1413_USERLEN+1], server_rec *srv)
 {
-    struct sockaddr_in rmt_query_sin, our_query_sin;
-    unsigned int rmt_port, our_port;
+    struct sockaddr_storage rmt_query_sin, our_query_sin;
+    unsigned int o_rmt_port, o_our_port;	/* original port pair */
+    unsigned int rmt_port, our_port;		/* replied port pair */
     int i;
     char *cp;
     char buffer[RFC1413_MAXDATA + 1];
@@ -129,16 +131,47 @@
      * addresses from the query socket.
      */
 
-    our_query_sin = *our_sin;
-    our_query_sin.sin_port = htons(ANY_PORT);
-#ifdef MPE 
-    our_query_sin.sin_addr.s_addr = INADDR_ANY;
+#ifndef SIN6_LEN
+    memcpy(&our_query_sin, our_sin, SA_LEN(our_sin));
+    memcpy(&rmt_query_sin, rmt_sin, SA_LEN(rmt_sin));
+#else
+    memcpy(&our_query_sin, our_sin, our_sin->sa_len);
+    memcpy(&rmt_query_sin, rmt_sin, rmt_sin->sa_len);
 #endif
-    rmt_query_sin = *rmt_sin;
-    rmt_query_sin.sin_port = htons(RFC1413_PORT);
+    switch (our_sin->sa_family) {
+    case AF_INET:
+#ifdef MPE
+      ((struct sockaddr_in *)&our_query_sin)->sin_addr.s_addr = INADDR_ANY; /* XXX: htonl(??) */
+#endif
+      ((struct sockaddr_in *)&our_query_sin)->sin_port = htons(ANY_PORT);
+      o_our_port = ntohs(((struct sockaddr_in *)our_sin)->sin_port);
+      ((struct sockaddr_in *)&rmt_query_sin)->sin_port = htons(RFC1413_PORT);
+      o_rmt_port = ntohs(((struct sockaddr_in *)rmt_sin)->sin_port);
+      break;
+#ifdef INET6
+    case AF_INET6:
+#ifdef MPE
+      memcpy(&((struct sockaddr_in6 *)&our_query_sin)->sin6_addr, 
+	     &in6addr_any, sizeof(struct in6_addr));
+#endif
+      ((struct sockaddr_in6 *)&our_query_sin)->sin6_port = htons(ANY_PORT);
+      o_our_port = ntohs(((struct sockaddr_in6 *)our_sin)->sin6_port);
+      ((struct sockaddr_in6 *)&rmt_query_sin)->sin6_port = htons(RFC1413_PORT);
+      o_rmt_port = ntohs(((struct sockaddr_in6 *)rmt_sin)->sin6_port);
+      break;
+#endif
+    default:
+      /* unsupported AF */
+      return -1;
+    }
 
     if (bind(sock, (struct sockaddr *) &our_query_sin,
-	     sizeof(struct sockaddr_in)) < 0) {
+#ifndef SIN6_LEN
+	     SA_LEN((struct sockaddr *) &our_query_sin)
+#else
+	     our_query_sin.ss_len
+#endif
+	     ) < 0) {
 	ap_log_error(APLOG_MARK, APLOG_CRIT, srv,
 		    "bind: rfc1413: Error binding to local port");
 	return -1;
@@ -149,12 +182,18 @@
  * the service
  */
     if (connect(sock, (struct sockaddr *) &rmt_query_sin,
-		sizeof(struct sockaddr_in)) < 0)
-	            return -1;
+#ifndef SIN6_LEN
+		SA_LEN((struct sockaddr *) &rmt_query_sin)
+#else
+		rmt_query_sin.ss_len
+#endif
+		) < 0) {
+	return -1;
+    }
 
 /* send the data */
-    buflen = ap_snprintf(buffer, sizeof(buffer), "%u,%u\r\n", ntohs(rmt_sin->sin_port),
-		ntohs(our_sin->sin_port));
+    buflen = ap_snprintf(buffer, sizeof(buffer), "%u,%u\r\n", o_rmt_port,
+		o_our_port);
 
     /* send query to server. Handle short write. */
 #ifdef CHARSET_EBCDIC
@@ -219,9 +258,9 @@
     ascii2ebcdic(buffer, buffer, (size_t)i);
 #endif
     if (sscanf(buffer, "%u , %u : USERID :%*[^:]:%512s", &rmt_port, &our_port,
-	       user) != 3 || ntohs(rmt_sin->sin_port) != rmt_port
-	|| ntohs(our_sin->sin_port) != our_port)
+	       user) != 3 || o_rmt_port != rmt_port || o_our_port != our_port) {
 	return -1;
+    }
 
     /*
      * Strip trailing carriage return. It is part of the
@@ -243,7 +282,7 @@
 
     result = FROM_UNKNOWN;
 
-    sock = ap_psocket(conn->pool, AF_INET, SOCK_STREAM, IPPROTO_TCP);
+    sock = ap_psocket(conn->pool, conn->remote_addr.ss_family, SOCK_STREAM, IPPROTO_TCP);
     if (sock < 0) {
 	ap_log_error(APLOG_MARK, APLOG_CRIT, srv,
 		    "socket: rfc1413: error creating socket");
@@ -256,8 +295,10 @@
     if (ap_setjmp(timebuf) == 0) {
 	ap_set_callback_and_alarm(ident_timeout, ap_rfc1413_timeout);
 
-	if (get_rfc1413(sock, &conn->local_addr, &conn->remote_addr, user, srv) >= 0)
+	if (get_rfc1413(sock, (struct sockaddr *)&conn->local_addr,
+		(struct sockaddr *)&conn->remote_addr, user, srv) >= 0) {
 	    result = user;
+	}
     }
     ap_set_callback_and_alarm(NULL, 0);
     ap_pclosesocket(conn->pool, sock);
diff -Nur apache_1.3.23.orig/src/main/util.c apache_1.3.23/src/main/util.c
--- apache_1.3.23.orig/src/main/util.c	Fri Dec 28 06:03:07 2001
+++ apache_1.3.23/src/main/util.c	Wed Feb  6 20:36:21 2002
@@ -1962,52 +1962,87 @@
  * Parses a host of the form <address>[:port]
  * :port is permitted if 'port' is not NULL
  */
-API_EXPORT(unsigned long) ap_get_virthost_addr(char *w, unsigned short *ports)
+API_EXPORT(struct sockaddr *) ap_get_virthost_addr(char *w, unsigned short *ports)
 {
-    struct hostent *hep;
-    unsigned long my_addr;
-    char *p;
-
-    p = strchr(w, ':');
+    static struct sockaddr_storage ss;
+    struct addrinfo hints, *res;
+    char *p, *r;
+    char *host;
+    char *port = "0";
+    int error;
+    char servbuf[NI_MAXSERV];
+
+    if (w == NULL)
+	w = "*";
+    p = r = NULL;
+    if (*w == '['){
+	if (r = strrchr(w+1, ']')){
+	    *r = '\0';
+	    p = r + 1;
+	    switch(*p){
+	    case ':':
+	      p++;
+	      /* nobreak; */
+	    case '\0':
+	      w++;
+	      break;
+	    default:
+	      p = NULL;
+	    }
+	}
+    }
+    else{
+	p = strchr(w, ':');
+	if (p != NULL && strchr(p+1, ':') != NULL)
+	    p = NULL;
+    }
     if (ports != NULL) {
-	*ports = 0;
-	if (p != NULL && strcmp(p + 1, "*") != 0)
-	    *ports = atoi(p + 1);
+	if (p != NULL && *p && strcmp(p + 1, "*") != 0)
+	    port = p + 1;
     }
 
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_socktype = SOCK_STREAM;
     if (p != NULL)
 	*p = '\0';
     if (strcmp(w, "*") == 0) {
-	if (p != NULL)
-	    *p = ':';
-	return htonl(INADDR_ANY);
-    }
-
-    my_addr = ap_inet_addr((char *)w);
-    if (my_addr != INADDR_NONE) {
-	if (p != NULL)
-	    *p = ':';
-	return my_addr;
+	host = NULL;
+	hints.ai_flags = AI_PASSIVE;
+	hints.ai_family = ap_default_family;
+    } else {
+	host = w;
+	hints.ai_family = PF_UNSPEC;
     }
 
-    hep = gethostbyname(w);
+    error = getaddrinfo(host, port, &hints, &res);
 
-    if ((!hep) || (hep->h_addrtype != AF_INET || !hep->h_addr_list[0])) {
-	fprintf(stderr, "Cannot resolve host name %s --- exiting!\n", w);
+    if (error || !res) {
+	fprintf(stderr, "ap_get_vitrhost_addr(): getaddrinfo(%s):%s --- exiting!\n", w, gai_strerror(error));
 	exit(1);
     }
 
-    if (hep->h_addr_list[1]) {
-	fprintf(stderr, "Host %s has multiple addresses ---\n", w);
+    if (res->ai_next) {
+	fprintf(stderr, "ap_get_vitrhost_addr(): Host %s has multiple addresses ---\n", w);
 	fprintf(stderr, "you must choose one explicitly for use as\n");
 	fprintf(stderr, "a virtual host.  Exiting!!!\n");
 	exit(1);
     }
 
+    if (r != NULL)
+	*r = ']';
     if (p != NULL)
 	*p = ':';
 
-    return ((struct in_addr *) (hep->h_addr))->s_addr;
+    memcpy(&ss, res->ai_addr, res->ai_addrlen);
+    if (getnameinfo(res->ai_addr, res->ai_addrlen,
+		    NULL, 0, servbuf, sizeof(servbuf),
+		    NI_NUMERICSERV)){
+	fprintf(stderr, "ap_get_virthost_addr(): getnameinfo() failed --- Exiting!!!\n");
+	exit(1);
+    }
+    if (ports) *ports = atoi(servbuf);
+    freeaddrinfo(res);
+    return (struct sockaddr *)&ss;
 }
 
 
@@ -2035,7 +2070,8 @@
 #endif
     char str[MAXHOSTNAMELEN];
     char *server_hostname = NULL;
-    struct hostent *p;
+    struct addrinfo hints, *res;
+    int error;
 
 #ifdef BEOS /* BeOS returns zero as an error for gethostname */
     if (gethostname(str, sizeof(str) - 1) == 0) {
@@ -2048,29 +2084,38 @@
     }
     else 
     {
-        str[sizeof(str) - 1] = '\0';
-        if ((!(p = gethostbyname(str))) 
-            || (!(server_hostname = find_fqdn(a, p)))) {
-            /* Recovery - return the default servername by IP: */
-            if (p && p->h_addr_list && p->h_addr_list[0]) {
-                ap_snprintf(str, sizeof(str), "%pA", p->h_addr_list[0]);
-	        server_hostname = ap_pstrdup(a, str);
-                /* We will drop through to report the IP-named server */
-            }
-        }
-	else
-            /* Since we found a fqdn, return it with no logged message. */
-            return server_hostname;
-    }
-
-    /* If we don't have an fdqn or IP, fall back to the loopback addr */
-    if (!server_hostname) 
-        server_hostname = ap_pstrdup(a, "127.0.0.1");
-    
-    ap_log_error(APLOG_MARK, APLOG_ALERT|APLOG_NOERRNO, NULL,
-	         "%s: Could not determine the server's fully qualified "
-                 "domain name, using %s for ServerName",
-                 ap_server_argv0, server_hostname);
+       str[sizeof(str) - 1] = '\0';
+       memset(&hints, 0, sizeof(hints));
+       hints.ai_family = PF_UNSPEC;
+       hints.ai_flags = AI_CANONNAME;
+       error = getaddrinfo(str, NULL, &hints, &res);
+       if (error)
+       {
+              /* Recovery - return the default servername by IP: */
+
+           fprintf(stderr, "%s: cannot determine local host name.\n",
+                 ap_server_argv0);
+           fprintf(stderr, "Use the ServerName directive to set it manually.\n");
+           exit(1);
+
+           server_hostname = ap_pstrdup(a, res->ai_canonname);
+       }
+       else if (1)     /*fqdn found*/
+       {
+           /* XXX should check more conditions */
+           server_hostname = ap_pstrdup(a, res->ai_canonname);
+       }
+        else
+       {
+           ap_log_error(APLOG_MARK, APLOG_ALERT|APLOG_NOERRNO, NULL,
+                        "%s: Could not determine the server's fully qualified "
+                        "domain name, using %s for ServerName",
+                        ap_server_argv0, server_hostname);
+       }
+
+       /* Since we found a fdqn, return it with no logged message. */
+       freeaddrinfo(res);
+      }
     
     return server_hostname;
 }
@@ -2149,7 +2194,7 @@
     char *quote_doubled_str, *dest;
     
     while (str[len]) {
-        num_quotes += str[len++] == '\"';
+	num_quotes += str[len++] == '\"';
     }
     
     quote_doubled_str = ap_palloc(p, len + num_quotes + 1);
@@ -2274,3 +2319,11 @@
     }
     *dest = 0;
 }
+
+#ifdef NEED_GETADDRINFO
+#include "getaddrinfo.c"
+#endif
+
+#ifdef NEED_GETNAMEINFO
+#include "getnameinfo.c"
+#endif
diff -Nur apache_1.3.23.orig/src/main/util_script.c apache_1.3.23/src/main/util_script.c
--- apache_1.3.23.orig/src/main/util_script.c	Fri Oct 12 01:37:39 2001
+++ apache_1.3.23/src/main/util_script.c	Wed Feb  6 20:20:48 2002
@@ -67,6 +67,7 @@
 #include "http_request.h"	/* for sub_req_lookup_uri() */
 #include "util_script.h"
 #include "util_date.h"		/* For parseHTTPdate() */
+#include "sa_len.h"
 
 #ifdef OS2
 #define INCL_DOS
@@ -208,6 +209,7 @@
     array_header *hdrs_arr = ap_table_elts(r->headers_in);
     table_entry *hdrs = (table_entry *) hdrs_arr->elts;
     int i;
+    char servbuf[NI_MAXSERV];
 
     /* use a temporary table which we'll overlap onto
      * r->subprocess_env later
@@ -298,8 +300,16 @@
     ap_table_addn(e, "SERVER_ADMIN", s->server_admin);	/* Apache */
     ap_table_addn(e, "SCRIPT_FILENAME", r->filename);	/* Apache */
 
-    ap_table_addn(e, "REMOTE_PORT",
-		  ap_psprintf(r->pool, "%d", ntohs(c->remote_addr.sin_port)));
+    servbuf[0] = '\0';
+    if (!getnameinfo((struct sockaddr *)&c->remote_addr,
+#ifndef HAVE_SOCKADDR_LEN
+		     SA_LEN((struct sockaddr *)&c->remote_addr),
+#else
+		     c->remote_addr.ss_len,
+#endif
+		     NULL, 0, servbuf, sizeof(servbuf), NI_NUMERICSERV)){
+	ap_table_addn(e, "REMOTE_PORT", ap_pstrdup(r->pool, servbuf));
+    }
 
     if (c->user) {
 	ap_table_addn(e, "REMOTE_USER", c->user);
diff -Nur apache_1.3.23.orig/src/main/util_uri.c apache_1.3.23/src/main/util_uri.c
--- apache_1.3.23.orig/src/main/util_uri.c	Sun Jan 20 21:14:37 2002
+++ apache_1.3.23/src/main/util_uri.c	Wed Feb  6 20:20:48 2002
@@ -419,6 +419,12 @@
          * the hostname.  If there's a port it is the first colon.
          */
         s = memchr(hostinfo, ':', uri - hostinfo);
+	if (*hostinfo == '[') {
+	    s = memchr(hostinfo+1, ']', uri - hostinfo - 1);
+	    if (s)
+		s = strchr(s, ':');
+	} else
+	    s = memchr(hostinfo, ':', uri - hostinfo);              
         if (s == NULL) {
             /* we expect the common case to have no port */
             uptr->hostname = ap_pstrndup(p, hostinfo, uri - hostinfo);
@@ -475,7 +481,12 @@
     /* We expect hostinfo to point to the first character of
      * the hostname.  There must be a port, separated by a colon
      */
-    s = strchr(hostinfo, ':');
+    if (*hostinfo == '[') {
+        s = strchr(hostinfo+1, ']');
+        if (s)
+            s = strchr(s, ':');
+    } else
+        s = strchr(hostinfo, ':');
     if (s == NULL) {
         return HTTP_BAD_REQUEST;
     }
diff -Nur apache_1.3.23.orig/src/modules/proxy/mod_proxy.c apache_1.3.23/src/modules/proxy/mod_proxy.c
--- apache_1.3.23.orig/src/modules/proxy/mod_proxy.c	Wed Feb  6 20:17:43 2002
+++ apache_1.3.23/src/modules/proxy/mod_proxy.c	Wed Feb  6 20:38:49 2002
@@ -556,11 +556,31 @@
     struct proxy_remote *new;
     char *p, *q;
     int port;
+    char *bl = NULL, *br = NULL;
 
     p = strchr(r, ':');
     if (p == NULL || p[1] != '/' || p[2] != '/' || p[3] == '\0')
         return "ProxyRemote: Bad syntax for a remote proxy server";
-    q = strchr(p + 3, ':');
+    bl = p + 3;
+    if (*bl == '['){
+	br = strrchr(bl+1, ']');
+	if (br){
+	    bl++;
+	    *br = '\0';
+	    if (*(br+1) == ':'){	/* [host]:xx */
+		q = br+1;
+	    }
+	    else if (*(br+1) == '\0'){	/* [host] */
+		q = NULL;
+	    }
+	    else
+		q = strrchr(br, ':');	/* XXX */
+	}
+	else
+	    q = strrchr(bl, ':');	/* XXX */
+    }
+    else
+	q = strrchr(bl, ':');
     if (q != NULL) {
         if (sscanf(q + 1, "%u", &port) != 1 || port > 65535)
             return "ProxyRemote: Bad syntax for a remote proxy server (bad port number)";
@@ -571,7 +591,7 @@
     *p = '\0';
     if (strchr(f, ':') == NULL)
         ap_str_tolower(f);              /* lowercase scheme */
-    ap_str_tolower(p + 3);              /* lowercase hostname */
+    ap_str_tolower(bl);                 /* lowercase hostname */
 
     if (port == -1) {
         int i;
@@ -584,7 +604,7 @@
     new = ap_push_array(conf->proxies);
     new->scheme = f;
     new->protocol = r;
-    new->hostname = p + 3;
+    new->hostname = bl;
     new->port = port;
     return NULL;
 }
diff -Nur apache_1.3.23.orig/src/modules/proxy/mod_proxy.h apache_1.3.23/src/modules/proxy/mod_proxy.h
--- apache_1.3.23.orig/src/modules/proxy/mod_proxy.h	Fri Jan 18 21:26:58 2002
+++ apache_1.3.23/src/modules/proxy/mod_proxy.h	Wed Feb  6 20:20:48 2002
@@ -308,7 +308,7 @@
 int ap_proxy_is_domainname(struct dirconn_entry *This, pool *p);
 int ap_proxy_is_hostname(struct dirconn_entry *This, pool *p);
 int ap_proxy_is_word(struct dirconn_entry *This, pool *p);
-int ap_proxy_doconnect(int sock, struct sockaddr_in *addr, request_rec *r);
+int ap_proxy_doconnect(int sock, struct sockaddr *addr, request_rec *r);
 int ap_proxy_garbage_init(server_rec *, pool *);
 /* This function is called by ap_table_do() for all header lines */
 int ap_proxy_send_hdr_line(void *p, const char *key, const char *value);
diff -Nur apache_1.3.23.orig/src/modules/proxy/mod_proxy.h.orig apache_1.3.23/src/modules/proxy/mod_proxy.h.orig
--- apache_1.3.23.orig/src/modules/proxy/mod_proxy.h.orig	Thu Jan  1 01:00:00 1970
+++ apache_1.3.23/src/modules/proxy/mod_proxy.h.orig	Fri Jan 18 21:26:58 2002
@@ -0,0 +1,342 @@
+/* ====================================================================
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2000 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution,
+ *    if any, must include the following acknowledgment:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowledgment may appear in the software itself,
+ *    if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "Apache" and "Apache Software Foundation" must
+ *    not be used to endorse or promote products derived from this
+ *    software without prior written permission. For written
+ *    permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache",
+ *    nor may "Apache" appear in their name, without prior written
+ *    permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ *
+ * Portions of this software are based upon public domain software
+ * originally written at the National Center for Supercomputing Applications,
+ * University of Illinois, Urbana-Champaign.
+ */
+
+#ifndef MOD_PROXY_H
+#define MOD_PROXY_H 
+
+/*
+ * Main include file for the Apache proxy
+ */
+
+/*
+
+   Note numerous FIXMEs and CHECKMEs which should be eliminated.
+
+   If TESTING is set, then garbage collection doesn't delete ... probably a good
+   idea when hacking.
+
+ */
+
+#define TESTING 0
+
+#include "httpd.h"
+#include "http_config.h"
+#include "http_protocol.h"
+
+#include "explain.h"
+
+extern module MODULE_VAR_EXPORT proxy_module;
+
+
+/* for proxy_canonenc() */
+enum enctype {
+    enc_path, enc_search, enc_user, enc_fpath, enc_parm
+};
+
+#define HDR_APP (0)             /* append header, for proxy_add_header() */
+#define HDR_REP (1)             /* replace header, for proxy_add_header() */
+
+/* number of characters in the hash */
+#define HASH_LEN (22*2)
+
+/* maximum  'CacheDirLevels*CacheDirLength' value */
+#define CACHEFILE_LEN 20        /* must be less than HASH_LEN/2 */
+
+#define SEC_ONE_DAY             86400   /* one day, in seconds */
+#define SEC_ONE_HR              3600    /* one hour, in seconds */
+
+#define DEFAULT_FTP_DATA_PORT   20
+#define DEFAULT_FTP_PORT        21
+#define DEFAULT_GOPHER_PORT     70
+#define DEFAULT_NNTP_PORT       119
+#define DEFAULT_WAIS_PORT       210
+#define DEFAULT_HTTPS_PORT      443
+#define DEFAULT_SNEWS_PORT      563
+#define DEFAULT_PROSPERO_PORT   1525    /* WARNING: conflict w/Oracle */
+
+/* Some WWW schemes and their default ports; this is basically /etc/services */
+struct proxy_services {
+    const char *scheme;
+    int port;
+};
+
+/* static information about a remote proxy */
+struct proxy_remote {
+    const char *scheme;         /* the schemes handled by this proxy, or '*' */
+    const char *protocol;       /* the scheme used to talk to this proxy */
+    const char *hostname;       /* the hostname of this proxy */
+    int port;                   /* the port for this proxy */
+};
+
+struct proxy_alias {
+    char *real;
+    char *fake;
+};
+
+struct dirconn_entry {
+    char *name;
+    struct in_addr addr, mask;
+    struct hostent *hostentry;
+    int (*matcher) (struct dirconn_entry * This, request_rec *r);
+};
+
+struct noproxy_entry {
+    char *name;
+    struct in_addr addr;
+};
+
+struct nocache_entry {
+    char *name;
+    struct in_addr addr;
+};
+
+#define DEFAULT_CACHE_SPACE 5
+#define DEFAULT_CACHE_MAXEXPIRE SEC_ONE_DAY
+#define DEFAULT_CACHE_EXPIRE    SEC_ONE_HR
+#define DEFAULT_CACHE_LMFACTOR (0.1)
+#define DEFAULT_CACHE_COMPLETION (0.9)
+#define DEFAULT_CACHE_GCINTERVAL SEC_ONE_HR
+
+#ifndef MAX
+#define MAX(a,b)                ((a) > (b) ? (a) : (b))
+#endif
+#ifndef MIN
+#define MIN(a,b)                ((a) < (b) ? (a) : (b))
+#endif
+
+/* static information about the local cache */
+struct cache_conf {
+    const char *root;           /* the location of the cache directory */
+    off_t space;                /* Maximum cache size (in 1024 bytes) */
+    char space_set;
+    time_t maxexpire;           /* Maximum time to keep cached files in secs */
+    char maxexpire_set;
+    time_t defaultexpire;       /* default time to keep cached file in secs */
+    char defaultexpire_set;
+    double lmfactor;            /* factor for estimating expires date */
+    char lmfactor_set;
+    time_t gcinterval;          /* garbage collection interval, in seconds */
+    char gcinterval_set;
+    int dirlevels;              /* Number of levels of subdirectories */
+    char dirlevels_set;
+    int dirlength;              /* Length of subdirectory names */
+    char dirlength_set;
+    float cache_completion;     /* Force cache completion after this point */
+    char cache_completion_set;
+};
+
+typedef struct {
+    struct cache_conf cache;    /* cache configuration */
+    array_header *proxies;
+    array_header *aliases;
+    array_header *raliases;
+    array_header *noproxies;
+    array_header *dirconn;
+    array_header *nocaches;
+    array_header *allowed_connect_ports;
+    char *domain;               /* domain name to use in absence of a domain name in the request */
+    int req;                    /* true if proxy requests are enabled */
+    char req_set;
+    enum {
+      via_off,
+      via_on,
+      via_block,
+      via_full
+    } viaopt;                   /* how to deal with proxy Via: headers */
+    char viaopt_set;
+    size_t recv_buffer_size;
+    char recv_buffer_size_set;
+} proxy_server_conf;
+
+struct hdr_entry {
+    const char *field;
+    const char *value;
+};
+
+/* caching information about a request */
+typedef struct {
+    request_rec *req;           /* the request */
+    char *url;                  /* the URL requested */
+    char *filename;             /* name of the cache file,
+                                   or NULL if no cache */
+    char *tempfile;             /* name of the temporary file,
+                                   or NULL if not caching */
+    time_t ims;                 /* if-Modified-Since date of request,
+                                   -1 if no header */
+    time_t ius;                 /* if-Unmodified-Since date of request,
+                                   -1 if no header */
+    const char *im;             /* if-Match etag of request,
+                                   NULL if no header */
+    const char *inm;            /* if-None-Match etag of request,
+                                   NULL if no header */
+    BUFF *fp;                   /* the cache file descriptor if the file
+                                   is cached and may be returned,
+                                   or NULL if the file is not cached
+                                   (or must be reloaded) */
+    BUFF *origfp;               /* the old cache file descriptor if the file has
+                                   been revalidated and is being rewritten to
+                                   disk */
+    time_t expire;              /* calculated expire date of cached entity */
+    time_t lmod;                /* last-modified date of cached entity */
+    time_t date;                /* the date the cached file was last touched */
+    time_t req_time;            /* the time the request started */
+    time_t resp_time;           /* the time the response was received */
+    int version;                /* update count of the file */
+    off_t len;                  /* content length */
+    char *protocol;             /* Protocol, and major/minor number,
+                                   e.g. HTTP/1.1 */
+    int status;                 /* the status of the cached file */
+    unsigned int written;       /* total *content* bytes written to cache */
+    float cache_completion;     /* specific to this request */
+    char *resp_line;            /* the whole status line
+                                   (protocol, code + message) */
+    table *req_hdrs;            /* the original request headers */
+    table *hdrs;                /* the original HTTP response headers
+                                   of the file */
+    char *xcache;               /* the X-Cache header value
+                                   to be sent to client */
+} cache_req;
+
+struct per_thread_data {
+    struct hostent hpbuf;
+    u_long ipaddr;
+    char *charpbuf[2];
+};
+/* Function prototypes */
+
+/* proxy_cache.c */
+
+void ap_proxy_cache_tidy(cache_req *c);
+int ap_proxy_cache_check(request_rec *r, char *url, struct cache_conf *conf,
+                      cache_req **cr);
+int ap_proxy_cache_update(cache_req *c, table *resp_hdrs,
+                       const int is_HTTP1, int nocache);
+void ap_proxy_garbage_coll(request_rec *r);
+
+/* proxy_connect.c */
+
+int ap_proxy_connect_handler(request_rec *r, cache_req *c, char *url,
+                          const char *proxyhost, int proxyport);
+
+/* proxy_ftp.c */
+
+int ap_proxy_ftp_canon(request_rec *r, char *url);
+int ap_proxy_ftp_handler(request_rec *r, cache_req *c, char *url);
+
+/* proxy_http.c */
+
+int ap_proxy_http_canon(request_rec *r, char *url, const char *scheme,
+                     int def_port);
+int ap_proxy_http_handler(request_rec *r, cache_req *c, char *url,
+                       const char *proxyhost, int proxyport);
+
+/* proxy_util.c */
+
+int ap_proxy_hex2c(const char *x);
+void ap_proxy_c2hex(int ch, char *x);
+char *ap_proxy_canonenc(pool *p, const char *x, int len, enum enctype t,
+                        enum proxyreqtype isenc);
+char *ap_proxy_canon_netloc(pool *p, char **const urlp, char **userp,
+                         char **passwordp, char **hostp, int *port);
+const char *ap_proxy_date_canon(pool *p, const char *x);
+table *ap_proxy_read_headers(request_rec *r, char *buffer, int size, BUFF *f);
+long int ap_proxy_send_fb(BUFF *f, request_rec *r, cache_req *c, off_t len, int nowrite);
+void ap_proxy_write_headers(cache_req *c, const char *respline, table *t);
+int ap_proxy_liststr(const char *list, const char *key, char **val);
+void ap_proxy_hash(const char *it, char *val, int ndepth, int nlength);
+int ap_proxy_hex2sec(const char *x);
+void ap_proxy_sec2hex(int t, char *y);
+cache_req *ap_proxy_cache_error(cache_req *r);
+int ap_proxyerror(request_rec *r, int statuscode, const char *message);
+const char *ap_proxy_host2addr(const char *host, struct hostent *reqhp);
+int ap_proxy_is_ipaddr(struct dirconn_entry *This, pool *p);
+int ap_proxy_is_domainname(struct dirconn_entry *This, pool *p);
+int ap_proxy_is_hostname(struct dirconn_entry *This, pool *p);
+int ap_proxy_is_word(struct dirconn_entry *This, pool *p);
+int ap_proxy_doconnect(int sock, struct sockaddr_in *addr, request_rec *r);
+int ap_proxy_garbage_init(server_rec *, pool *);
+/* This function is called by ap_table_do() for all header lines */
+int ap_proxy_send_hdr_line(void *p, const char *key, const char *value);
+unsigned ap_proxy_bputs2(const char *data, BUFF *client, cache_req *cache);
+time_t ap_proxy_current_age(cache_req *c, const time_t age_value);
+BUFF *ap_proxy_open_cachefile(request_rec *r, char *filename);
+BUFF *ap_proxy_create_cachefile(request_rec *r, char *filename);
+void ap_proxy_clear_connection(pool *p, table *headers);
+int ap_proxy_table_replace(table *base, table *overlay);
+
+/* WARNING - PRIVATE DEFINITION BELOW */
+
+/* XXX: if you tweak this you should look at is_empty_table() and table_elts()
+ * in ap_alloc.h
+ *
+ * NOTE: this private definition is a duplicate of the one in alloc.c
+ * It's here for ap_proxy_table_replace() to avoid breaking binary compat
+ */
+struct table {
+    /* This has to be first to promote backwards compatibility with
+     * older modules which cast a table * to an array_header *...
+     * they should use the table_elts() function for most of the
+     * cases they do this for.
+     */
+    array_header a;
+#ifdef MAKE_TABLE_PROFILE
+    void *creator;
+#endif
+};
+
+#endif /*MOD_PROXY_H*/
diff -Nur apache_1.3.23.orig/src/modules/proxy/proxy_connect.c apache_1.3.23/src/modules/proxy/proxy_connect.c
--- apache_1.3.23.orig/src/modules/proxy/proxy_connect.c	Sun Jan 20 21:14:37 2002
+++ apache_1.3.23/src/modules/proxy/proxy_connect.c	Wed Feb  6 20:49:52 2002
@@ -114,14 +114,15 @@
                           const char *proxyhost, int proxyport)
 {
     struct sockaddr_in server;
-    struct in_addr destaddr;
-    struct hostent server_hp;
-    const char *host, *err;
+    struct addrinfo hints, *res, *res0;
+    const char *hoststr;
+    const char *portstr = NULL;
     char *p;
     int port, sock;
     char buffer[HUGE_STRING_LEN];
-    int nbytes, i, j;
+    int nbytes, i;
     fd_set fds;
+    int error;
 
     void *sconf = r->server->module_config;
     proxy_server_conf *conf =
@@ -129,27 +130,59 @@
     struct noproxy_entry *npent = (struct noproxy_entry *)conf->noproxies->elts;
 
     memset(&server, '\0', sizeof(server));
+#ifdef HAVE_SOCKADDR_LEN
+    server.sin_len = sizeof(server);
+#endif
     server.sin_family = AF_INET;
 
     /* Break the URL into host:port pairs */
 
-    host = url;
+    hoststr = url;
     p = strchr(url, ':');
-    if (p == NULL)
-        port = DEFAULT_HTTPS_PORT;
-    else {
-        port = atoi(p + 1);
+    if (p == NULL) {
+	char pbuf[32];
+	ap_snprintf(pbuf, sizeof(pbuf), "%d", DEFAULT_HTTPS_PORT);
+	portstr = pbuf;
+    } else {
+	portstr = p + 1;
         *p = '\0';
     }
+    port = atoi(portstr);
+
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = PF_UNSPEC;
+    hints.ai_socktype = SOCK_STREAM;
+    hints.ai_protocol = IPPROTO_TCP;
+    error = getaddrinfo(hoststr, portstr, &hints, &res0);
+    if (error) {
+	return ap_proxyerror(r, HTTP_INTERNAL_SERVER_ERROR,
+		    gai_strerror(error));       /* give up */
+    }
 
 /* check if ProxyBlock directive on this host */
-    destaddr.s_addr = ap_inet_addr(host);
-    for (i = 0; i < conf->noproxies->nelts; i++) {
-        if ((npent[i].name != NULL && strstr(host, npent[i].name) != NULL)
-            || destaddr.s_addr == npent[i].addr.s_addr
-            || npent[i].name[0] == '*')
+    for (res = res0; res; res = res = res->ai_next) {
+	struct sockaddr_in *sin;
+	int fail;
+
+	fail = 0;
+	for (i = 0; i < conf->noproxies->nelts; i++) {
+	    if (npent[i].name != NULL && strstr(hoststr, npent[i].name))
+		fail++;
+	    if (npent[i].name != NULL && strcmp(npent[i].name, "*") == 0)
+		fail++;
+	    switch (res->ai_family) {
+	    case AF_INET:
+		sin = (struct sockaddr_in *)res->ai_addr;
+		if (sin->sin_addr.s_addr == npent[i].addr.s_addr)
+		    fail++;
+		break;
+	    }
+	}
+	if (fail) {
+	    freeaddrinfo(res0);
             return ap_proxyerror(r, HTTP_FORBIDDEN,
                                  "Connect to remote machine blocked");
+	}
     }
 
     /* Check if it is an allowed port */
@@ -160,33 +193,41 @@
             case DEFAULT_SNEWS_PORT:
                 break;
             default:
+		freeaddrinfo(res0);
                 return HTTP_FORBIDDEN;
         }
-    } else if(!allowed_port(conf, port))
+    } else if(!allowed_port(conf, port)) {
+	freeaddrinfo(res0);
         return HTTP_FORBIDDEN;
+    }
 
     if (proxyhost) {
+	char pbuf[10];
+
+	freeaddrinfo(res0);
+
+	ap_snprintf(pbuf, sizeof(pbuf), "%d", proxyport);
+	memset(&hints, 0, sizeof(hints));
+	hints.ai_family = PF_UNSPEC;
+	hints.ai_socktype = SOCK_STREAM;
+	hints.ai_protocol = IPPROTO_TCP;
+	error = getaddrinfo(proxyhost, pbuf, &hints, &res0);
+	if (error)
+	    return HTTP_INTERNAL_SERVER_ERROR;	/* XXX */
+
         ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, r->server,
             "CONNECT to remote proxy %s on port %d", proxyhost, proxyport);
     }
     else {
         ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, r->server,
-            "CONNECT to %s on port %d", host, port);
+            "CONNECT to %s on port %d", hoststr, port);
     }
 
-    /* Nasty cast to work around broken terniary expressions on MSVC */
-    server.sin_port = htons((unsigned short)(proxyport ? proxyport : port));
-    err = ap_proxy_host2addr(proxyhost ? proxyhost : host, &server_hp);
-
-    if (err != NULL)
-        return ap_proxyerror(r,
-           proxyhost ? HTTP_BAD_GATEWAY : HTTP_INTERNAL_SERVER_ERROR, err);
-
-    sock = ap_psocket(r->pool, PF_INET, SOCK_STREAM, IPPROTO_TCP);
-    if (sock == -1) {
-        ap_log_rerror(APLOG_MARK, APLOG_ERR, r, "proxy: error creating socket");
-        return HTTP_INTERNAL_SERVER_ERROR;
-    }
+    sock = i = -1;
+    for (res = res0; res; res = res->ai_next) {
+	sock = ap_psocket(r->pool, res->ai_family, res->ai_socktype, res->ai_protocol);
+	if (sock == -1)
+	    continue;
 
 #ifdef CHECK_FD_SETSIZE
     if (sock >= FD_SETSIZE) {
@@ -196,19 +237,15 @@
             "found, you probably need to rebuild Apache with a "
             "larger FD_SETSIZE", sock, FD_SETSIZE);
         ap_pclosesocket(r->pool, sock);
-        return HTTP_INTERNAL_SERVER_ERROR;
+	continue;
     }
 #endif
 
-    j = 0;
-    while (server_hp.h_addr_list[j] != NULL) {
-        memcpy(&server.sin_addr, server_hp.h_addr_list[j],
-               sizeof(struct in_addr));
-        i = ap_proxy_doconnect(sock, &server, r);
+	i = ap_proxy_doconnect(sock, res->ai_addr, r);
         if (i == 0)
             break;
-        j++;
     }
+    freeaddrinfo(res0);
     if (i == -1) {
         ap_pclosesocket(r->pool, sock);
         return ap_proxyerror(r, HTTP_INTERNAL_SERVER_ERROR, ap_pstrcat(r->pool,
diff -Nur apache_1.3.23.orig/src/modules/proxy/proxy_ftp.c apache_1.3.23/src/modules/proxy/proxy_ftp.c
--- apache_1.3.23.orig/src/modules/proxy/proxy_ftp.c	Sun Jan 20 21:14:37 2002
+++ apache_1.3.23/src/modules/proxy/proxy_ftp.c	Wed Feb  6 21:08:39 2002
@@ -62,6 +62,7 @@
 #include "http_main.h"
 #include "http_log.h"
 #include "http_core.h"
+#include "sa_len.h"
 
 #define AUTODETECT_PWD
 
@@ -451,8 +452,10 @@
     const char *err;
     int port, i, j, len, sock, dsock, rc, nocache = 0;
     int csd = 0;
-    struct sockaddr_in server;
-    struct hostent server_hp;
+    struct sockaddr_storage server;
+    struct addrinfo hints, *res, *res0;
+    char portbuf[10];
+    int error;
     struct in_addr destaddr;
     table *resp_hdrs;
     BUFF *f;
@@ -471,11 +474,18 @@
     unsigned int presult, h0, h1, h2, h3, p0, p1;
     unsigned int paddr;
     unsigned short pport;
-    struct sockaddr_in data_addr;
+    struct sockaddr_storage data_addr;
+    struct sockaddr_in *sin;
     int pasvmode = 0;
     char pasv[64];
     char *pstr;
 
+/* stuff for LPSV/EPSV */
+    unsigned int paf, holen, ho[16], polen, po[2];
+    struct sockaddr_in6 *sin6;
+    int lpsvmode = 0;
+    char *cmd;
+
 /* stuff for responses */
     char resp[MAX_STRING_LEN];
     char *size = NULL;
@@ -545,62 +555,52 @@
     if (parms != NULL)
         *(parms++) = '\0';
 
-    memset(&server, 0, sizeof(struct sockaddr_in));
-    server.sin_family = AF_INET;
-    server.sin_port = htons((unsigned short)port);
-    err = ap_proxy_host2addr(host, &server_hp);
-    if (err != NULL)
-        return ap_proxyerror(r, HTTP_INTERNAL_SERVER_ERROR, err);
-
-    sock = ap_psocket(p, PF_INET, SOCK_STREAM, IPPROTO_TCP);
-    if (sock == -1) {
-        ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
-                     "proxy: error creating socket");
-        return HTTP_INTERNAL_SERVER_ERROR;
-    }
+    ap_snprintf(portbuf, sizeof(portbuf), "%d", port);
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = PF_UNSPEC;
+    hints.ai_socktype = SOCK_STREAM;
+    error = getaddrinfo(host, portbuf, &hints, &res0);
+    if (error) {
+	return ap_proxyerror(r, HTTP_INTERNAL_SERVER_ERROR,
+	    gai_strerror(error));
+    }
+
+    i = -1;
+    for (res = res0; res; res = res->ai_next) {
+	sock = ap_psocket(p, res->ai_family, res->ai_socktype,
+	    res->ai_protocol);
+	if (sock == -1)
+	    continue;
 
 #if !defined(TPF) && !defined(BEOS)
-    if (conf->recv_buffer_size > 0
-        && setsockopt(sock, SOL_SOCKET, SO_RCVBUF,
-                       (const char *) &conf->recv_buffer_size, sizeof(int))
-            == -1) {
-            ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
-                         "setsockopt(SO_RCVBUF): Failed to set ProxyReceiveBufferSize, using default");
-    }
+	if (conf->recv_buffer_size > 0
+	    && setsockopt(sock, SOL_SOCKET, SO_RCVBUF,
+			   (const char *) &conf->recv_buffer_size, sizeof(int))
+		== -1) {
+		ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
+			     "setsockopt(SO_RCVBUF): Failed to set ProxyReceiveBufferSize, using default");
+	}
 #endif
 
-    if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void *) &one,
-                   sizeof(one)) == -1) {
+	if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void *) &one,
+		       sizeof(one)) == -1) {
 #ifndef _OSD_POSIX /* BS2000 has this option "always on" */
-        ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
-                     "proxy: error setting reuseaddr option: setsockopt(SO_REUSEADDR)");
-        ap_pclosesocket(p, sock);
-        return HTTP_INTERNAL_SERVER_ERROR;
+	    ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
+			 "proxy: error setting reuseaddr option: setsockopt(SO_REUSEADDR)");
+	    ap_pclosesocket(p, sock);
+	    freeaddrinfo(res0);
+	    return HTTP_INTERNAL_SERVER_ERROR;
 #endif /*_OSD_POSIX*/
-    }
-
-#ifdef SINIX_D_RESOLVER_BUG
-    {
-        struct in_addr *ip_addr = (struct in_addr *) *server_hp.h_addr_list;
-
-        for (; ip_addr->s_addr != 0; ++ip_addr) {
-            memcpy(&server.sin_addr, ip_addr, sizeof(struct in_addr));
-            i = ap_proxy_doconnect(sock, &server, r);
-            if (i == 0)
-                break;
         }
-    }
-#else
-    j = 0;
-    while (server_hp.h_addr_list[j] != NULL) {
-        memcpy(&server.sin_addr, server_hp.h_addr_list[j],
-               sizeof(struct in_addr));
-        i = ap_proxy_doconnect(sock, &server, r);
-        if (i == 0)
+
+	i = ap_proxy_doconnect(sock, res->ai_addr, r);
+	if (i == 0){
+	    memcpy(&server, res->ai_addr, res->ai_addrlen);
             break;
-        j++;
+	}
+	ap_pclosesocket(p, sock);
     }
-#endif
+    freeaddrinfo(res0);
     if (i == -1) {
         ap_pclosesocket(p, sock);
         return ap_proxyerror(r, HTTP_BAD_GATEWAY, ap_pstrcat(r->pool,
@@ -807,7 +807,7 @@
     }
 
 /* try to set up PASV data connection first */
-    dsock = ap_psocket(p, PF_INET, SOCK_STREAM, IPPROTO_TCP);
+    dsock = ap_psocket(p, server.ss_family, SOCK_STREAM, IPPROTO_TCP);
     if (dsock == -1) {
         ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
                      "proxy: error creating PASV socket");
@@ -826,11 +826,22 @@
     }
 #endif
 
-    ap_bputs("PASV" CRLF, f);
+lpsvagain:
+    if (server.ss_family == AF_INET)
+	cmd = "PASV";
+    else if (lpsvmode)
+	cmd = "LPSV";
+    else
+	cmd = "EPSV";
+    ap_bputs(cmd, f);
+    ap_bputs(CRLF, f);
     ap_bflush(f);
+    Explain0("FTP: passive command issued");
     ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, r->server, "FTP: PASV command issued");
-/* possible results: 227, 421, 500, 501, 502, 530 */
+    /* possible results: 227, 228, 229, 421, 500, 501, 502, 530 */
     /* 227 Entering Passive Mode (h1,h2,h3,h4,p1,p2). */
+    /* 228 Entering Long Passive Mode (...). */
+    /* 229 Entering Extended Passive Mode (...). */
     /* 421 Service not available, closing control connection. */
     /* 500 Syntax error, command unrecognized. */
     /* 501 Syntax error in parameters or arguments. */
@@ -839,7 +850,7 @@
     i = ap_bgets(pasv, sizeof(pasv), f);
     if (i == -1) {
         ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, r,
-                     "PASV: control connection is toast");
+                     "%s: control connection is toast", cmd);
         ap_pclosesocket(p, dsock);
         ap_bclose(f);
         ap_kill_timeout(r);
@@ -871,10 +882,14 @@
             pport = (p1 << 8) + p0;
             ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, r->server, "FTP: contacting host %d.%d.%d.%d:%d",
                      h3, h2, h1, h0, pport);
-            data_addr.sin_family = AF_INET;
-            data_addr.sin_addr.s_addr = htonl(paddr);
-            data_addr.sin_port = htons(pport);
-            i = ap_proxy_doconnect(dsock, &data_addr, r);
+	    sin = (struct sockaddr_in *)&data_addr;
+	    sin->sin_family = AF_INET;
+#ifdef SIN6_LEN
+	    sin->sin_len = sizeof(*sin);
+#endif
+	    sin->sin_addr.s_addr = htonl(paddr);
+	    sin->sin_port = htons(pport);
+	    i = ap_proxy_doconnect(dsock, (struct sockaddr *)&data_addr, r);
 
             if (i == -1) {
                 ap_kill_timeout(r);
@@ -886,13 +901,73 @@
             else {
                 pasvmode = 1;
             }
+	} else if (presult == 228 && pstr != NULL
+		&& sscanf(pstr,
+"%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u",
+		    &paf, &holen, &ho[0], &ho[1], &ho[2], &ho[3],
+		    &ho[4], &ho[5], &ho[6], &ho[7], &ho[8], &ho[9], &ho[10], &ho[11],
+		    &ho[12], &ho[13], &ho[14], &ho[15], &polen, &po[0], &po[1]) == 21
+		&& paf == 6 && holen == 16 && polen == 2) {
+	    int i;
+	    sin6 = (struct sockaddr_in6 *)&data_addr;
+	    sin6->sin6_family = AF_INET6;
+#ifdef SIN6_LEN
+	    sin6->sin6_len = sizeof(*sin6);
+#endif
+	    for (i = 0; i < 16; i++)
+		sin6->sin6_addr.s6_addr[i] = ho[i] & 0xff;
+	    sin6->sin6_port = htons(((po[0] & 0xff) << 8) | (po[1] & 0xff));
+	    i = ap_proxy_doconnect(dsock, (struct sockaddr *)&data_addr, r);
+
+	    if (i == -1) {
+		ap_kill_timeout(r);
+		return ap_proxyerror(r, HTTP_BAD_GATEWAY,
+				     ap_pstrcat(r->pool,
+						"Could not connect to remote machine: ",
+						strerror(errno), NULL));
+	    } else {
+		pasvmode = 1;
+	    }
+	} else if (presult == 229 && pstr != NULL
+		&& pstr[0] == pstr[1] && pstr[0] == pstr[2]
+		&& pstr[0] == pstr[strlen(pstr) - 1]) {
+	    /* expect "|||port|" */
+#ifndef SIN6_LEN
+	    memcpy(&data_addr, &server, SA_LEN((struct sockaddr *)&server));
+#else
+	    memcpy(&data_addr, &server, server.ss_len);
+#endif
+	    switch (data_addr.ss_family) {
+	    case AF_INET:
+		sin = (struct sockaddr_in *)&data_addr;
+		sin->sin_port = htons(atoi(pstr + 3));
+		break;
+	    case AF_INET6:
+		sin6 = (struct sockaddr_in6 *)&data_addr;
+		sin6->sin6_port = htons(atoi(pstr + 3));
+		break;
+	    }
+	    i = ap_proxy_doconnect(dsock, (struct sockaddr *)&data_addr, r);
+
+	    if (i == -1) {
+		ap_kill_timeout(r);
+		return ap_proxyerror(r, HTTP_BAD_GATEWAY,
+				     ap_pstrcat(r->pool,
+						"Could not connect to remote machine: ",
+						strerror(errno), NULL));
+	    } else {
+		pasvmode = 1;
+	    }
+	} else if (!lpsvmode && strcmp(cmd, "EPSV") == 0) {
+	    lpsvmode = 1;
+	    goto lpsvagain;
         }
         else
             ap_pclosesocket(p, dsock);  /* and try the regular way */
     }
 
     if (!pasvmode) {            /* set up data connection */
-        clen = sizeof(struct sockaddr_in);
+	clen = sizeof(server);
         if (getsockname(sock, (struct sockaddr *) &server, &clen) < 0) {
             ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
                          "proxy: error getting socket address");
@@ -901,7 +976,7 @@
             return HTTP_INTERNAL_SERVER_ERROR;
         }
 
-        dsock = ap_psocket(p, PF_INET, SOCK_STREAM, IPPROTO_TCP);
+        dsock = ap_psocket(p, server.ss_family, SOCK_STREAM, IPPROTO_TCP);
         if (dsock == -1) {
             ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
                          "proxy: error creating socket");
@@ -922,13 +997,26 @@
 #endif /*_OSD_POSIX*/
         }
 
-        if (bind(dsock, (struct sockaddr *) &server,
-                 sizeof(struct sockaddr_in)) == -1) {
-            char buff[22];
+#ifndef SIN6_LEN
+	if (bind(dsock, (struct sockaddr *) &server, SA_LEN((struct sockaddr *)&server)) == -1)
+#else
+	if (bind(dsock, (struct sockaddr *) &server, server.ss_len) == -1)
+#endif
+	{
+	    char hostnamebuf[MAXHOSTNAMELEN], portnamebuf[MAXHOSTNAMELEN];
 
+	    getnameinfo((struct sockaddr *)&server,
+#ifndef SIN6_LEN
+		    SA_LEN((struct sockaddr *)&server),
+#else
+		    server.ss_len,
+#endif
+		hostnamebuf, sizeof(hostnamebuf),
+		portnamebuf, sizeof(portnamebuf),
+		NI_NUMERICHOST | NI_NUMERICSERV);
-            ap_snprintf(buff, sizeof(buff), "%s:%d", inet_ntoa(server.sin_addr), server.sin_port);
             ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
-                         "proxy: error binding to ftp data socket %s", buff);
+                         "proxy: error binding to ftp data socket %s:%s",
+			 hostnamebuf, portnamebuf);
             ap_bclose(f);
             ap_pclosesocket(p, dsock);
             return HTTP_INTERNAL_SERVER_ERROR;
@@ -1187,7 +1276,7 @@
 
     if (!pasvmode) {            /* wait for connection */
         ap_hard_timeout("proxy ftp data connect", r);
-        clen = sizeof(struct sockaddr_in);
+        clen = sizeof(server);
         do
             csd = accept(dsock, (struct sockaddr *) &server, &clen);
         while (csd == -1 && errno == EINTR);
diff -Nur apache_1.3.23.orig/src/modules/proxy/proxy_http.c apache_1.3.23/src/modules/proxy/proxy_http.c
--- apache_1.3.23.orig/src/modules/proxy/proxy_http.c	Wed Feb  6 20:17:43 2002
+++ apache_1.3.23/src/modules/proxy/proxy_http.c	Wed Feb  6 21:18:32 2002
@@ -155,9 +155,8 @@
     table *req_hdrs, *resp_hdrs;
     array_header *reqhdrs_arr;
     table_entry *reqhdrs_elts;
-    struct sockaddr_in server;
-    struct in_addr destaddr;
-    struct hostent server_hp;
+    struct addrinfo hints, *res, *res0;
+    int error;
     BUFF *f;
     char buffer[HUGE_STRING_LEN];
     char portstr[32];
@@ -179,9 +178,6 @@
 
     if (conf->cache.root == NULL) nocache = 1;
 
-    memset(&server, '\0', sizeof(server));
-    server.sin_family = AF_INET;
-
     /* We break the URL into host, port, path-search */
 
     urlptr = strstr(url, "://");
@@ -189,6 +185,8 @@
         return HTTP_BAD_REQUEST;
     urlptr += 3;
     destport = DEFAULT_HTTP_PORT;
+    ap_snprintf(portstr, sizeof(portstr), "%d", DEFAULT_HTTP_PORT);
+    destportstr = portstr;           
 #ifdef EAPI
     ap_hook_use("ap::mod_proxy::http::handler::set_destport", 
                 AP_HOOK_SIG2(int,ptr), 
@@ -207,7 +205,20 @@
         urlptr = strp;
         desthost = q;
     }
-
+   if (*desthost == '['){
+       char *u = strrchr(desthost+1, ']');
+       if (u){
+	   desthost++;
+	   *u = '\0';
+	   if (*(u+1) == ':'){ /* [host]:xx */
+	       strp2 = u+1;
+	   } else if (*(u+1) == '\0'){   /* [host] */
+	       strp2 = NULL;
+	   } else
+	       return HTTP_BAD_REQUEST;
+	} else
+	    return HTTP_BAD_REQUEST;
+   } else
     strp2 = strchr(desthost, ':');
     if (strp2 != NULL) {
         *(strp2++) = '\0';
@@ -218,45 +229,69 @@
     }
 
     /* check if ProxyBlock directive on this host */
-    destaddr.s_addr = ap_inet_addr(desthost);
-    for (i = 0; i < conf->noproxies->nelts; i++) {
-        if (destaddr.s_addr == npent[i].addr.s_addr ||
-            (npent[i].name != NULL &&
-              (npent[i].name[0] == '*' || strstr(desthost, npent[i].name) != NULL)))
+     memset(&hints, 0, sizeof(hints));
+     hints.ai_family = PF_UNSPEC;
+     hints.ai_socktype = SOCK_STREAM;
+     hints.ai_protocol = IPPROTO_TCP;
+     error = getaddrinfo(desthost, destportstr, &hints, &res0);
+     if (error) {
+       return ap_proxyerror(r, HTTP_INTERNAL_SERVER_ERROR,
+               gai_strerror(error));       /* give up */
+     }
+    
+ /* check if ProxyBlock directive on this host */
+     for (res = res0; res; res = res->ai_next) {
+       struct sockaddr_in *sin;
+ #ifdef INET6
+       struct sockaddr_in6 *sin6;
+ #endif
+       int fail;
+       
+       fail = 0;
+       for (i = 0; i < conf->noproxies->nelts; i++) {
+           if (npent[i].name != NULL && strstr(desthost, npent[i].name))
+               fail++;
+           if (npent[i].name != NULL && strcmp(npent[i].name, "*") == 0)
+               fail++;
+           switch (res->ai_family) {
+               case AF_INET:
+                   sin = (struct sockaddr_in *)res->ai_addr;
+                   if (sin->sin_addr.s_addr == npent[i].addr.s_addr)
+                       fail++;
+                   break;
+                   }
+           }
+       if (fail) {
+           freeaddrinfo(res0);
             return ap_proxyerror(r, HTTP_FORBIDDEN,
                                  "Connect to remote machine blocked");
-    }
-
-    if (proxyhost != NULL) {
-        server.sin_port = htons((unsigned short)proxyport);
-        err = ap_proxy_host2addr(proxyhost, &server_hp);
-        if (err != NULL)
+       }
+      }
+  
+      if (proxyhost != NULL) {
+       char pbuf[10];
+       
+       freeaddrinfo(res0);
+       ap_snprintf(pbuf, sizeof(pbuf), "%d", proxyport);
+       memset(&hints, 0, sizeof(hints));
+       hints.ai_family = PF_UNSPEC;
+       hints.ai_socktype = SOCK_STREAM;
+       hints.ai_protocol = IPPROTO_TCP;
+       error = getaddrinfo(proxyhost, pbuf, &hints, &res0);
+       if (error)
             return DECLINED;    /* try another */
-#ifdef EAPI
-	peer = ap_psprintf(p, "%s:%u", proxyhost, proxyport);  
-#endif
-    }
-    else {
-        server.sin_port = htons((unsigned short)destport);
-        err = ap_proxy_host2addr(desthost, &server_hp);
-        if (err != NULL)
-            return ap_proxyerror(r, HTTP_INTERNAL_SERVER_ERROR, err);
-#ifdef EAPI
-	peer =  ap_psprintf(p, "%s:%u", desthost, destport);  
-#endif
-    }
-
-
-    /* we have worked out who exactly we are going to connect to, now
-     * make that connection...
-     */
-    sock = ap_psocket(p, PF_INET, SOCK_STREAM, IPPROTO_TCP);
-    if (sock == -1) {
-        ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
-                    "proxy: error creating socket");
-        return HTTP_INTERNAL_SERVER_ERROR;
-    }
-
+  #ifdef EAPI
+        peer = ap_psprintf(p, "%s:%u", proxyhost, proxyport);  
+  #endif
+      }
+  
+     sock = i = -1;
+     for (res = res0; res; res = res->ai_next) {
+       sock = ap_psocket(p, res->ai_family, res->ai_socktype,
+               res->ai_protocol);
+       if (sock < 0)
+           continue;
+    
 #if !defined(TPF) && !defined(BEOS)
     if (conf->recv_buffer_size) {
         if (setsockopt(sock, SOL_SOCKET, SO_RCVBUF,
@@ -268,28 +303,12 @@
     }
 #endif
 
-#ifdef SINIX_D_RESOLVER_BUG
-    {
-        struct in_addr *ip_addr = (struct in_addr *) *server_hp.h_addr_list;
-
-        for (; ip_addr->s_addr != 0; ++ip_addr) {
-            memcpy(&server.sin_addr, ip_addr, sizeof(struct in_addr));
-            i = ap_proxy_doconnect(sock, &server, r);
-            if (i == 0)
-                break;
-        }
-    }
-#else
-    j = 0;
-    while (server_hp.h_addr_list[j] != NULL) {
-        memcpy(&server.sin_addr, server_hp.h_addr_list[j],
-               sizeof(struct in_addr));
-        i = ap_proxy_doconnect(sock, &server, r);
+	i = ap_proxy_doconnect(sock, res->ai_addr, r);
         if (i == 0)
             break;
-        j++;
+	ap_pclosesocket(p, sock); 
     }
-#endif
+    freeaddrinfo(res0);
     if (i == -1) {
         if (proxyhost != NULL)
             return DECLINED;    /* try again another way */
@@ -544,16 +563,30 @@
       ap_table_set(resp_hdrs, "Content-Location", proxy_location_reverse_map(r , urlstr));
 
 /* check if NoCache directive on this host */
+  {
+    struct sockaddr_in *sin;
+#ifdef INET6
+    struct sockaddr_in6 *sin6;
+#endif
+
     if (nocache == 0) {
         for (i = 0; i < conf->nocaches->nelts; i++) {
-            if (destaddr.s_addr == ncent[i].addr.s_addr ||
-                (ncent[i].name != NULL &&
-                  (ncent[i].name[0] == '*' ||
-                   strstr(desthost, ncent[i].name) != NULL))) {
-               nocache = 1;
-               break;
+	    if (ncent[i].name != NULL && 
+		(ncent[i].name[0] == '*' ||
+		 strstr(desthost, ncent[i].name) != NULL)) {
+		nocache = 1;
+		break;
+	    }
+	    switch (res->ai_addr->sa_family) {
+	    case AF_INET:
+		sin = (struct sockaddr_in *)res->ai_addr;
+		if (sin->sin_addr.s_addr == ncent[i].addr.s_addr) {
+		    nocache = 1;
+		    break;
+		}
             }
         }
+  }
 
     /* update the cache file, possibly even fulfilling the request if
      * it turns out a conditional allowed us to serve the object from the
diff -Nur apache_1.3.23.orig/src/modules/proxy/proxy_util.c apache_1.3.23/src/modules/proxy/proxy_util.c
--- apache_1.3.23.orig/src/modules/proxy/proxy_util.c	Fri Jan 18 21:26:58 2002
+++ apache_1.3.23/src/modules/proxy/proxy_util.c	Wed Feb  6 21:25:17 2002
@@ -64,6 +64,7 @@
 #include "http_log.h"
 #include "util_uri.h"
 #include "util_date.h"  /* get ap_checkmask() decl. */
+#include "sa_len.h"
 
 static int proxy_match_ipaddr(struct dirconn_entry *This, request_rec *r);
 static int proxy_match_domainname(struct dirconn_entry *This, request_rec *r);
@@ -218,6 +219,7 @@
     int i;
     char *strp, *host, *url = *urlp;
     char *user = NULL, *password = NULL;
+    char *t = NULL, *u = NULL, *v = NULL;
 
     if (url[0] != '/' || url[1] != '/')
         return "Malformed URL";
@@ -256,11 +258,22 @@
         *passwordp = password;
     }
 
-    strp = strrchr(host, ':');
-    if (strp != NULL) {
-        *(strp++) = '\0';
-
-        for (i = 0; strp[i] != '\0'; i++)
+    v = host;
+    if (*host == '['){
+	u = strrchr(host, ']');
+	if (u){
+	    host++;
+	    *u = '\0';
+	    v = u + 1;
+	}
+    }
+    t = strrchr(v, ':');
+    if (t){
+	*t = '\0';
+	strp = t + 1;
+    }
+    if (strp) {
+	for (i=0; strp[i] != '\0'; i++)
             if (!ap_isdigit(strp[i]))
                 break;
 
@@ -278,17 +291,29 @@
         return "Missing host in URL";
 /* check hostname syntax */
     for (i = 0; host[i] != '\0'; i++)
-        if (!ap_isdigit(host[i]) && host[i] != '.')
+        if (!ap_isdigit(host[i]) && host[i] != '.' && host[i] != ':')
             break;
     /* must be an IP address */
 #if defined(WIN32) || defined(NETWARE) || defined(TPF) || defined(BEOS)
     if (host[i] == '\0' && (inet_addr(host) == -1))
+	return "Bad IP address in URL";
+#else
+    if (host[i] == '\0') {
+	struct addrinfo hints, *res0;
+	int gai;
+	memset(&hints, 0, sizeof(hints));
+	hints.ai_family = PF_UNSPEC;
+	hints.ai_flags = AI_NUMERICHOST;
+	if (gai = getaddrinfo(host, NULL, &hints, &res0)) {
+#if 0
+	    return gai_strerror(gai);
 #else
-    if (host[i] == '\0' && (ap_inet_addr(host) == -1 || inet_network(host) == -1))
+	    return "Bad IP address in URL";
 #endif
-    {
-        return "Bad IP address in URL";
+	}
+	freeaddrinfo(res0);
     }
+#endif
 
 /*    if (strchr(host,'.') == NULL && domain != NULL)
    host = pstrcat(p, host, domain, NULL);
@@ -1284,22 +1309,45 @@
     return host != NULL && strstr(host, This->name) != NULL;
 }
 
-int ap_proxy_doconnect(int sock, struct sockaddr_in *addr, request_rec *r)
+int ap_proxy_doconnect(int sock, struct sockaddr *addr, request_rec *r)
 {
     int i;
+    int salen;
+    char hbuf[NI_MAXHOST], pbuf[NI_MAXSERV];
+#ifdef NI_WITHSCOPEID
+    const int niflags = NI_NUMERICHOST | NI_NUMERICSERV | NI_WITHSCOPEID;
+#else
+    const int niflags = NI_NUMERICHOST | NI_NUMERICSERV;
+#endif
 
     ap_hard_timeout("proxy connect", r);
+#ifdef HAVE_SOCKADDR_LEN
+    salen = addr->sa_len;
+#else
+    switch (addr->sa_family) {
+    case AF_INET6:
+	salen = sizeof(struct sockaddr_in6);
+	break;
+    default:
+	salen = sizeof(struct sockaddr_in);
+	break;
+    }
+#endif
     do {
-        i = connect(sock, (struct sockaddr *) addr, sizeof(struct sockaddr_in));
+        i = connect(sock, addr, salen);
 #if defined(WIN32) || defined(NETWARE)
         if (i == SOCKET_ERROR)
             errno = WSAGetLastError();
 #endif /* WIN32 */
     } while (i == -1 && errno == EINTR);
     if (i == -1) {
+	if (getnameinfo(addr, salen, hbuf, sizeof(hbuf), pbuf, sizeof(pbuf),
+		niflags) != 0) {
+	    strcpy(hbuf, "?");
+	    strcpy(pbuf, "?");
+	}
         ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
-                     "proxy connect to %s port %d failed",
-                     inet_ntoa(addr->sin_addr), ntohs(addr->sin_port));
+                     "proxy connect to %s port %d failed", hbuf, pbuf);
     }
     ap_kill_timeout(r);
 
diff -Nur apache_1.3.23.orig/src/modules/standard/mod_access.c apache_1.3.23/src/modules/standard/mod_access.c
--- apache_1.3.23.orig/src/modules/standard/mod_access.c	Mon Jan 15 18:05:34 2001
+++ apache_1.3.23/src/modules/standard/mod_access.c	Wed Feb  6 20:20:48 2002
@@ -74,7 +74,10 @@
     T_ALL,
     T_IP,
     T_HOST,
-    T_FAIL
+    T_FAIL,
+#ifdef INET6
+    T_IP6,
+#endif
 };
 
 typedef struct {
@@ -82,9 +85,15 @@
     union {
 	char *from;
 	struct {
-	    unsigned long net;
-	    unsigned long mask;
+	    struct in_addr net;
+	    struct in_addr mask;
 	} ip;
+#ifdef INET6
+	struct {
+	    struct in6_addr net6;
+	    struct in6_addr mask6;
+	} ip6;
+#endif
     } x;
     enum allowdeny_type type;
 } allowdeny;
@@ -167,90 +176,230 @@
 
     }
     else if ((s = strchr(where, '/'))) {
-	unsigned long mask;
+	struct addrinfo hints, *resnet, *resmask;
+	struct sockaddr_storage net, mask;
+	int error;
+	char *p;
+	int justdigits;
 
-	a->type = T_IP;
+	a->type = T_FAIL;	/*just in case*/
 	/* trample on where, we won't be using it any more */
 	*s++ = '\0';
 
-	if (!is_ip(where)
-	    || (a->x.ip.net = ap_inet_addr(where)) == INADDR_NONE) {
+	justdigits = 0;
+	for (p = s; *p; p++) {
+	    if (!isdigit(*p))
+		break;
+	}
+	if (!*p)
+	    justdigits++;
+
+	memset(&hints, 0, sizeof(hints));
+	hints.ai_family = PF_UNSPEC;
+	hints.ai_socktype = SOCK_STREAM;	/*dummy*/
+#ifdef AI_NUMERICHOST
+	hints.ai_flags = AI_NUMERICHOST;	/*don't resolve*/
+#endif
+	resnet = NULL;
+	error = getaddrinfo(where, NULL, &hints, &resnet);
+	if (error || !resnet) {
+	    if (resnet)
+		freeaddrinfo(resnet);
 	    a->type = T_FAIL;
 	    return "syntax error in network portion of network/netmask";
 	}
+	if (resnet->ai_next) {
+	    freeaddrinfo(resnet);
+	    a->type = T_FAIL;
+	    return "network/netmask resolved to multiple addresses";
+	}
+	memcpy(&net, resnet->ai_addr, resnet->ai_addrlen);
+	freeaddrinfo(resnet);
 
-	/* is_ip just tests if it matches [\d.]+ */
-	if (!is_ip(s)) {
+	switch (net.ss_family) {
+	case AF_INET:
+	    a->type = T_IP;
+	    a->x.ip.net.s_addr = ((struct sockaddr_in *)&net)->sin_addr.s_addr;
+	    break;
+#ifdef INET6
+	case AF_INET6:
+	    a->type = T_IP6;
+	    memcpy(&a->x.ip6.net6, &((struct sockaddr_in6 *)&net)->sin6_addr,
+		sizeof(a->x.ip6.net6));
+	    break;
+#endif
+	default:
 	    a->type = T_FAIL;
-	    return "syntax error in mask portion of network/netmask";
+	    return "unknown address family for network";
 	}
-	/* is it in /a.b.c.d form? */
-	if (strchr(s, '.')) {
-	    mask = ap_inet_addr(s);
-	    if (mask == INADDR_NONE) {
+
+	if (!justdigits) {
+	    memset(&hints, 0, sizeof(hints));
+	    hints.ai_family = PF_UNSPEC;
+	    hints.ai_socktype = SOCK_STREAM;	/*dummy*/ 
+#ifdef AI_NUMERICHOST
+	    hints.ai_flags = AI_NUMERICHOST;	/*don't resolve*/
+#endif
+	    resmask = NULL;
+	    error = getaddrinfo(s, NULL, &hints, &resmask);
+	    if (error || !resmask) {
+		if (resmask)
+		    freeaddrinfo(resmask);
 		a->type = T_FAIL;
 		return "syntax error in mask portion of network/netmask";
 	    }
-	}
-	else {
-	    /* assume it's in /nnn form */
-	    mask = atoi(s);
-	    if (mask > 32 || mask <= 0) {
-		a->type = T_FAIL;
-		return "invalid mask in network/netmask";
-	    }
-	    mask = 0xFFFFFFFFUL << (32 - mask);
-	    mask = htonl(mask);
-	}
-	a->x.ip.mask = mask;
-        a->x.ip.net  = (a->x.ip.net & mask);   /* pjr - This fixes PR 4770 */
-    }
-    else if (ap_isdigit(*where) && is_ip(where)) {
-	/* legacy syntax for ip addrs: a.b.c. ==> a.b.c.0/24 for example */
-	int shift;
-	char *t;
-	int octet;
-
-	a->type = T_IP;
-	/* parse components */
-	s = where;
-	a->x.ip.net = 0;
-	a->x.ip.mask = 0;
-	shift = 24;
-	while (*s) {
-	    t = s;
-	    if (!ap_isdigit(*t)) {
+	    if (resmask->ai_next) {
+		freeaddrinfo(resmask);
 		a->type = T_FAIL;
-		return "invalid ip address";
+		return "network/netmask resolved to multiple addresses";
 	    }
-	    while (ap_isdigit(*t)) {
-		++t;
-	    }
-	    if (*t == '.') {
-		*t++ = 0;
-	    }
-	    else if (*t) {
+	    memcpy(&mask, resmask->ai_addr, resmask->ai_addrlen);
+	    freeaddrinfo(resmask);
+
+	    if (net.ss_family != mask.ss_family) {
 		a->type = T_FAIL;
-		return "invalid ip address";
+		return "network/netmask resolved to different address family";
 	    }
-	    if (shift < 0) {
-		return "invalid ip address, only 4 octets allowed";
+
+	    switch (a->type) {
+	    case T_IP:
+		a->x.ip.mask.s_addr =
+		    ((struct sockaddr_in *)&mask)->sin_addr.s_addr;
+		break;
+#ifdef INET6
+	    case T_IP6:
+		memcpy(&a->x.ip6.mask6,
+		    &((struct sockaddr_in6 *)&mask)->sin6_addr,
+		    sizeof(a->x.ip6.mask6));
+		break;
+#endif
 	    }
-	    octet = atoi(s);
-	    if (octet < 0 || octet > 255) {
-		a->type = T_FAIL;
-		return "each octet must be between 0 and 255 inclusive";
+	} else {
+	    int mask;
+	    mask = atoi(s);
+	    switch (a->type) {
+	    case T_IP:
+		if (mask < 0 || 32 < mask) {
+		    a->type = T_FAIL;
+		    return "netmask out of range";
+		}
+		a->x.ip.mask.s_addr = htonl(0xFFFFFFFFUL << (32 - mask));
+		break;
+#ifdef INET6
+	    case T_IP6:
+	      {
+		int i;
+		if (mask < 0 || 128 < mask) {
+		    a->type = T_FAIL;
+		    return "netmask out of range";
+		}
+		for (i = 0; i < mask / 8; i++) {
+		    a->x.ip6.mask6.s6_addr[i] = 0xff;
+		}
+		if (mask % 8)
+		    a->x.ip6.mask6.s6_addr[i] = 0xff << (8 - (mask % 8));
+		break;
+	      }
+#endif
 	    }
-	    a->x.ip.net |= octet << shift;
-	    a->x.ip.mask |= 0xFFUL << shift;
-	    s = t;
-	    shift -= 8;
 	}
-	a->x.ip.net = ntohl(a->x.ip.net);
-	a->x.ip.mask = ntohl(a->x.ip.mask);
     }
     else {
-	a->type = T_HOST;
+	struct addrinfo hints, *res;
+	struct sockaddr_storage ss;
+	int error;
+
+	a->type = T_FAIL;	/*just in case*/
+
+	/* First, try using the old apache code to match */
+	/* legacy syntax for ip addrs: a.b.c. ==> a.b.c.0/24 for example */
+	if (ap_isdigit(*where) && is_ip(where)) {
+	    int shift;
+	    char *t;
+	    int octet;
+
+	    a->type = T_IP;
+	    /* parse components */
+	    s = where;
+	    a->x.ip.net.s_addr = 0;
+	    a->x.ip.mask.s_addr = 0;
+	    shift = 24;
+	    while (*s) {
+		t = s;
+		if (!ap_isdigit(*t)) {
+		    a->type = T_FAIL;
+		    return "invalid ip address";
+		}
+		while (ap_isdigit(*t)) {
+		    ++t;
+		}
+		if (*t == '.') {
+		    *t++ = 0;
+		}
+		else if (*t) {
+		    a->type = T_FAIL;
+		    return "invalid ip address";
+		}
+		if (shift < 0) {
+		    return "invalid ip address, only 4 octets allowed";
+		}
+		octet = atoi(s);
+		if (octet < 0 || octet > 255) {
+		    a->type = T_FAIL;
+		    return "each octet must be between 0 and 255 inclusive";
+		}
+		a->x.ip.net.s_addr |= octet << shift;
+		a->x.ip.mask.s_addr |= 0xFFUL << shift;
+		s = t;
+		shift -= 8;
+	    }
+	    a->x.ip.net.s_addr = ntohl(a->x.ip.net.s_addr);
+	    a->x.ip.mask.s_addr = ntohl(a->x.ip.mask.s_addr);
+
+	    return NULL;
+	}
+
+	/* IPv4/v6 numeric address */
+	memset(&hints, 0, sizeof(hints));
+	hints.ai_family = PF_UNSPEC;
+	hints.ai_socktype = SOCK_STREAM;	/*dummy*/
+#ifdef AI_NUMERICHOST
+	hints.ai_flags = AI_NUMERICHOST;	/*don't resolve*/
+#endif
+	res = NULL;
+	error = getaddrinfo(where, NULL, &hints, &res);
+	if (error || !res) {
+	    if (res)
+		freeaddrinfo(res);
+	    a->type = T_HOST;
+	    return NULL;
+	}
+	if (res->ai_next) {
+	    freeaddrinfo(res);
+	    a->type = T_FAIL;
+	    return "network/netmask resolved to multiple addresses";
+	}
+	memcpy(&ss, res->ai_addr, res->ai_addrlen);
+	freeaddrinfo(res);
+
+	switch (ss.ss_family) {
+	case AF_INET:
+	    a->type = T_IP;
+	    a->x.ip.net.s_addr = ((struct sockaddr_in *)&ss)->sin_addr.s_addr;
+	    memset(&a->x.ip.mask, 0xff, sizeof(a->x.ip.mask));
+	    break;
+#ifdef INET6
+	case AF_INET6:
+	    a->type = T_IP6;
+	    memcpy(&a->x.ip6.net6, &((struct sockaddr_in6 *)&ss)->sin6_addr,
+		sizeof(a->x.ip6.net6));
+	    memset(&a->x.ip6.mask6, 0xff, sizeof(a->x.ip6.mask6));
+	    break;
+#endif
+	default:
+	    a->type = T_FAIL;
+	    return "unknown address family for network";
+	}
     }
 
     return NULL;
@@ -315,12 +464,63 @@
 	    return 1;
 
 	case T_IP:
-	    if (ap[i].x.ip.net != INADDR_NONE
-		&& (r->connection->remote_addr.sin_addr.s_addr
-		    & ap[i].x.ip.mask) == ap[i].x.ip.net) {
-		return 1;
+	    if (ap[i].x.ip.net.s_addr == INADDR_NONE)
+		break;
+	    switch (r->connection->remote_addr.ss_family) {
+	    case AF_INET:
+		if ((((struct sockaddr_in *)&r->connection->remote_addr)->sin_addr.s_addr
+			& ap[i].x.ip.mask.s_addr) == ap[i].x.ip.net.s_addr) {
+		    return 1;
+		}
+		break;
+#ifdef INET6
+	    case AF_INET6:
+		if (!IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)&r->connection->remote_addr)->sin6_addr))	/*XXX*/
+		    break;
+		if ((*(ap_uint32_t *)&((struct sockaddr_in6 *)&r->connection->remote_addr)->sin6_addr.s6_addr[12]
+			& ap[i].x.ip.mask.s_addr) == ap[i].x.ip.net.s_addr) {
+		    return 1;
+		}
+		break;
+#endif
+	    }
+	    break;
+
+#ifdef INET6
+	case T_IP6:
+	  {
+	    struct in6_addr masked;
+	    int j;
+	    if (IN6_IS_ADDR_UNSPECIFIED(&ap[i].x.ip6.net6))
+		break;
+	    switch (r->connection->remote_addr.ss_family) {
+	    case AF_INET:
+		if (!IN6_IS_ADDR_V4MAPPED(&ap[i].x.ip6.net6))	/*XXX*/
+		    break;
+		memset(&masked, 0, sizeof(masked));
+		masked.s6_addr[10] = masked.s6_addr[11] = 0xff;
+		memcpy(&masked.s6_addr[12],
+		    &((struct sockaddr_in *)&r->connection->remote_addr)->sin_addr.s_addr,
+		    sizeof(struct sockaddr_in));
+		for (j = 0; j < sizeof(struct in6_addr); j++)
+			masked.s6_addr[j] &= ap[i].x.ip6.mask6.s6_addr[j];
+		if (memcmp(&masked, &ap[i].x.ip6.net6, sizeof(masked)) == 0)
+		    return 1;
+		break;
+	    case AF_INET6:
+		memset(&masked, 0, sizeof(masked));
+		memcpy(&masked,
+		    &((struct sockaddr_in6 *)&r->connection->remote_addr)->sin6_addr,
+		    sizeof(masked));
+		for (j = 0; j < sizeof(struct in6_addr); j++)
+		    masked.s6_addr[j] &= ap[i].x.ip6.mask6.s6_addr[j];
+		if (memcmp(&masked, &ap[i].x.ip6.net6, sizeof(masked)) == 0)
+		    return 1;
+		break;
 	    }
 	    break;
+	  }
+#endif
 
 	case T_HOST:
 	    if (!gothost) {
diff -Nur apache_1.3.23.orig/src/modules/standard/mod_unique_id.c apache_1.3.23/src/modules/standard/mod_unique_id.c
--- apache_1.3.23.orig/src/modules/standard/mod_unique_id.c	Tue Oct  2 18:11:13 2001
+++ apache_1.3.23/src/modules/standard/mod_unique_id.c	Wed Feb  6 20:20:48 2002
@@ -67,10 +67,22 @@
 #include "http_config.h"
 #include "http_log.h"
 #include "multithread.h"
+#include "sa_len.h"
+
+/*#define SHORT_UNIQUE_ID*/
 
 typedef struct {
     unsigned int stamp;
-    unsigned int in_addr;
+    union {
+	struct in_addr in;
+#ifdef INET6
+# ifdef SHORT_UNIQUE_ID
+	ap_uint32_t in6;
+# else
+	struct in6_addr in6;
+# endif
+#endif
+    } addr;
     unsigned int pid;
 #ifdef MULTITHREAD
     unsigned int tid;
@@ -142,7 +154,7 @@
  * this shouldn't be a problem till year 2106.
  */
 
-static unsigned global_in_addr;
+static struct sockaddr_storage global_addr;
 
 #ifdef WIN32
 
@@ -221,7 +233,8 @@
 #define MAXHOSTNAMELEN 256
 #endif
     char str[MAXHOSTNAMELEN + 1];
-    struct hostent *hent;
+    struct addrinfo hints, *res, *res0;
+    int error;
 #ifndef NO_GETTIMEOFDAY
     struct timeval tv;
 #endif
@@ -232,8 +245,8 @@
      */
     unique_id_rec_offset[0] = XtOffsetOf(unique_id_rec, stamp);
     unique_id_rec_size[0] = sizeof(cur_unique_id->stamp);
-    unique_id_rec_offset[1] = XtOffsetOf(unique_id_rec, in_addr);
-    unique_id_rec_size[1] = sizeof(cur_unique_id->in_addr);
+    unique_id_rec_offset[1] = XtOffsetOf(unique_id_rec, addr);
+    unique_id_rec_size[1] = sizeof(cur_unique_id->addr);
     unique_id_rec_offset[2] = XtOffsetOf(unique_id_rec, pid);
     unique_id_rec_size[2] = sizeof(cur_unique_id->pid);
 #ifdef MULTITHREAD
@@ -269,17 +282,44 @@
     }
     str[sizeof(str) - 1] = '\0';
 
-    if ((hent = gethostbyname(str)) == NULL) {
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = PF_UNSPEC;
+    error = getaddrinfo(str, NULL, &hints, &res0);
+    if (error) {
         ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_ALERT, s,
-		     "mod_unique_id: unable to gethostbyname(\"%s\")", str);
+                     "mod_unique_id: getaddrinfo failed for \"%s\" (%s)", str,
+		     gai_strerror(error));
         exit(1);
     }
 
-    global_in_addr = ((struct in_addr *) hent->h_addr_list[0])->s_addr;
+    error = 1;
+    for (res = res0; res; res = res->ai_next) {
+	switch (res->ai_family) {
+	case AF_INET:
+#ifdef INET6
+	case AF_INET6:
+#endif
+	    memcpy(&global_addr, res->ai_addr, res->ai_addrlen);
+	    error = 0;
+	    break;
+	}
+    }
+    freeaddrinfo(res0);
+    if (error) {
+        ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_ALERT, s,
+                    "mod_unique_id: no known AF found for \"%s\"", str);
+        exit(1);
+    }
 
+    getnameinfo((struct sockaddr *)&global_addr,
+#ifndef SIN6_LEN
+	SA_LEN((struct sockaddr *)&global_addr),
+#else
+	global_addr.ss_len,
+#endif
+	str, sizeof(str), NULL, 0, NI_NUMERICHOST);
     ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO, s,
-		 "mod_unique_id: using ip addr %s",
-		 inet_ntoa(*(struct in_addr *) hent->h_addr_list[0]));
+                 "mod_unique_id: using ip addr %s", str);
 
     /*
      * If the server is pummelled with restart requests we could possibly end
@@ -336,7 +376,23 @@
 		     "oh no! pids are greater than 32-bits!  I'm broken!");
     }
 
-    cur_unique_id->in_addr = global_in_addr;
+    memset(&cur_unique_id->addr, 0, sizeof(cur_unique_id->addr));
+    switch (global_addr.ss_family) {
+    case AF_INET:
+	cur_unique_id->addr.in = ((struct sockaddr_in *)&global_addr)->sin_addr;
+	break;
+#ifdef INET6
+    case AF_INET6:
+#ifdef SHORT_UNIQUE_ID
+	cur_unique_id->addr.in6 =
+	    ((struct sockaddr_in6 *)&global_addr)->sin6_addr.s6_addr32[3];
+#else
+	cur_unique_id->addr.in6 =
+	    ((struct sockaddr_in6 *)&global_addr)->sin6_addr;
+#endif
+	break;
+#endif
+    }
 
     /*
      * If we use 0 as the initial counter we have a little less protection
diff -Nur apache_1.3.23.orig/src/support/ab.c apache_1.3.23/src/support/ab.c
--- apache_1.3.23.orig/src/support/ab.c	Mon Oct  8 19:54:42 2001
+++ apache_1.3.23/src/support/ab.c	Wed Feb  6 20:20:48 2002
@@ -158,6 +158,8 @@
 #include <sys/uio.h>
 #endif
 
+#include "sa_len.h"
+
 #endif				/* NO_APACHE_INCLUDES */
 
 #ifdef	USE_SSL
@@ -246,7 +248,7 @@
 char servername[1024];		/* name that server reports */
 char hostname[1024];		/* host name */
 char proxyhost[1024];		/* proxy host name */
-int proxyport = 0;		/* proxy port */
+char *proxyport = NULL;		/* proxy port */
 int isproxy = 0;
 char path[1024];		/* path name */
 char postfile[1024];		/* name of file containing post data */
@@ -261,7 +263,7 @@
      auth[1024],		/* optional (basic/uuencoded)
 				 * authentification */
      hdrs[4096];		/* optional arbitrary headers */
-int port = 80;			/* port number */
+char *port = "80";		/* port number */
 
 int use_html = 0;		/* use html in the report */
 char *tablestring;
@@ -298,7 +300,7 @@
 struct data *stats;		/* date for each request */
 
 fd_set readbits, writebits;	/* bits for select */
-struct sockaddr_in server;	/* server addr structure */
+struct sockaddr_storage server;      /* server addr structure */
 
 #ifndef BEOS
 #define ab_close(s) close(s)
@@ -509,7 +511,7 @@
     printf("\r                                                                           \r");
     printf("Server Software:        %s\n", servername);
     printf("Server Hostname:        %s\n", hostname);
-    printf("Server Port:            %d\n", port);
+    printf("Server Port:            %s\n", port);
     printf("\n");
     printf("Document Path:          %s\n", path);
     printf("Document Length:        %d bytes\n", doclen);
@@ -862,7 +864,7 @@
     c->cbx = 0;
     c->gotheader = 0;
 
-    c->fd = socket(AF_INET, SOCK_STREAM, 0);
+    c->fd = socket(server.ss_family, SOCK_STREAM, 0);
     if (c->fd < 0) {
 	what = "SOCKET";
 	goto bad;
@@ -879,7 +881,12 @@
 
 again:
     gettimeofday(&c->start, 0);
-    if (connect(c->fd, (struct sockaddr *) & server, sizeof(server)) < 0) {
+#ifndef SIN6_LEN
+    if (connect(c->fd, (struct sockaddr *) & server, SA_LEN((struct sockaddr*)&server)) < 0)
+#else
+    if (connect(c->fd, (struct sockaddr *) & server, server.ss_len) < 0)
+#endif
+    {
 	if (errno == EINPROGRESS) {
 	    c->state = STATE_CONNECTING;
 	}
@@ -1171,7 +1178,7 @@
     struct timeval timeout, now;
     fd_set sel_read, sel_except, sel_write;
     long i;
-    int connectport;
+    char * connectport;
     char * url_on_request, * host;
 
     /* There are four hostname's involved:
@@ -1209,16 +1216,21 @@
     }
     {
 	/* get server information */
-	struct hostent *he;
-	he = gethostbyname(host);
-	if (!he) {
-	    char theerror[1024];
-	    sprintf(theerror, "Bad hostname: %s\n", host);
-	    err(theerror);
-	}
-	server.sin_family = he->h_addrtype;
-	server.sin_port = htons(connectport);
-	server.sin_addr.s_addr = ((unsigned long *) (he->h_addr_list[0]))[0];
+        struct addrinfo hints, *res;
+	int error;
+
+	memset(&hints, 0, sizeof(hints));
+	hints.ai_family = PF_UNSPEC;
+	hints.ai_socktype = SOCK_STREAM;
+	error = getaddrinfo(host, connectport, &hints, &res);
+	if (error) {
+		char *theerror=malloc(strlen(host)+16);
+		sprintf(theerror, "Bad hostname: %s\n", host);
+		err(theerror);
+		free(theerror);
+	}
+	memcpy(&server, res->ai_addr, res->ai_addrlen);
+	freeaddrinfo(res);
     }
 
     con = malloc(concurrency * sizeof(struct connection));
@@ -1404,7 +1416,7 @@
     if (strlen(purl) > 8 && strncmp(purl, "https://", 8) == 0) {
 	purl += 8;
 	ssl = 1;
-	port = 443;
+	port = "443";
     }
 #else
     if (strlen(purl) > 8 && strncmp(purl, "https://", 8) == 0) {
@@ -1425,7 +1437,7 @@
     *cp = '\0';
     strcpy(hostname, h);
     if (p != NULL)
-	port = atoi(p);
+        port = strdup(p);
     return 0;
 }
 
@@ -1585,7 +1597,7 @@
 		if ((p = strchr(optarg, ':'))) {
 		    *p = '\0';
 		    p++;
-		    proxyport = atoi(p);
+		    proxyport = strdup(p);
 		};
 		strcpy(proxyhost, optarg);
 		isproxy = 1;
@@ -1668,3 +1680,7 @@
 
     exit(0);
 }
+
+#ifdef NEED_GETADDRINFO
+#include "../main/getaddrinfo.c"
+#endif
diff -Nur apache_1.3.23.orig/src/support/logresolve.c apache_1.3.23/src/support/logresolve.c
--- apache_1.3.23.orig/src/support/logresolve.c	Wed May 23 00:52:21 2001
+++ apache_1.3.23/src/support/logresolve.c	Wed Feb  6 20:20:48 2002
@@ -54,7 +54,9 @@
 #endif /* BEOS */
 #endif /* !MPE && !WIN32*/
 
-static void cgethost(struct in_addr ipnum, char *string, int check);
+#include "sa_len.h"
+
+static void cgethost(struct sockaddr *sa, char *string, int check);
 static int getline(char *s, int n);
 static void stats(FILE *output);
 
@@ -91,7 +93,7 @@
  */
 
 struct nsrec {
-    struct in_addr ipnum;
+    struct sockaddr_storage addr;
     char *hostname;
     int noname;
     struct nsrec *next;
@@ -122,17 +124,48 @@
  * IP numbers with their IP number as hostname, setting noname flag
  */
 
-static void cgethost (struct in_addr ipnum, char *string, int check)
+static void cgethost (struct sockaddr *sa, char *string, int check)
 {
+    ap_uint32_t hashval;
+    struct sockaddr_in *sin;
+#ifdef INET6
+    struct sockaddr_in6 *sin6;
+#endif
     struct nsrec **current, *new;
-    struct hostent *hostdata;
     char *name;
+    char hostnamebuf[MAXHOSTNAMELEN];
+
+    switch (sa->sa_family) {
+    case AF_INET:
+	hashval = ((struct sockaddr_in *)sa)->sin_addr.s_addr;
+	break;
+#ifdef INET6
+    case AF_INET6:
+	hashval = *(ap_uint32_t *)&((struct sockaddr_in6 *)sa)->sin6_addr.s6_addr[12];
+	break;
+#endif
+    default:
+	hashval = 0;
+	break;
+    }
+
+    current = &nscache[((hashval + (hashval >> 8) +
+			 (hashval >> 16) + (hashval >> 24)) % BUCKETS)];
 
-    current = &nscache[((ipnum.s_addr + (ipnum.s_addr >> 8) +
-			 (ipnum.s_addr >> 16) + (ipnum.s_addr >> 24)) % BUCKETS)];
+    while (*current) {
+#ifndef SIN6_LEN
+	if (SA_LEN(sa) == SA_LEN((struct sockaddr *)&(*current)->addr)
+	 && memcmp(sa, &(*current)->addr, SA_LEN(sa)) == 0)
+#else
+	if (sa->sa_len == (*current)->addr.ss_len
+	 && memcmp(sa, &(*current)->addr, sa->sa_len) == 0)
+#endif
+	{
+	    break;
+	}
 
-    while (*current != NULL && ipnum.s_addr != (*current)->ipnum.s_addr)
 	current = &(*current)->next;
+    }
 
     if (*current == NULL) {
 	cachesize++;
@@ -145,45 +178,55 @@
 	*current = new;
 	new->next = NULL;
 
-	new->ipnum = ipnum;
+#ifndef SIN6_LEN
+	memcpy(&new->addr, sa, SA_LEN(sa));
+#else
+	memcpy(&new->addr, sa, sa->sa_len);
+#endif
 
-	hostdata = gethostbyaddr((const char *) &ipnum, sizeof(struct in_addr),
-				 AF_INET);
-	if (hostdata == NULL) {
-	    if (h_errno > MAX_ERR)
-		errors[UNKNOWN_ERR]++;
-	    else
-		errors[h_errno]++;
-	    new->noname = h_errno;
-	    name = strdup(inet_ntoa(ipnum));
-	}
-	else {
-	    new->noname = 0;
-	    name = strdup(hostdata->h_name);
-	    if (check) {
-		if (name == NULL) {
-		    perror("strdup");
-		    fprintf(stderr, "Insufficient memory\n");
-		    exit(1);
-		}
-		hostdata = gethostbyname(name);
-		if (hostdata != NULL) {
-		    char **hptr;
-
-		    for (hptr = hostdata->h_addr_list; *hptr != NULL; hptr++)
-			if (((struct in_addr *) (*hptr))->s_addr == ipnum.s_addr)
-			    break;
-		    if (*hptr == NULL)
-			hostdata = NULL;
-		}
-		if (hostdata == NULL) {
-		    fprintf(stderr, "Bad host: %s != %s\n", name,
-			    inet_ntoa(ipnum));
-		    new->noname = NO_REVERSE;
-		    free(name);
-		    name = strdup(inet_ntoa(ipnum));
-		    errors[NO_REVERSE]++;
+	new->noname = getnameinfo(sa,
+#ifndef SIN6_LEN
+		SA_LEN(sa),
+#else
+		sa->sa_len,
+#endif
+		    hostnamebuf, sizeof(hostnamebuf), NULL, 0, 0);
+	name = strdup(hostnamebuf);
+	if (check) {
+	    struct addrinfo hints, *res;
+	    int error;
+	    memset(&hints, 0, sizeof(hints));
+	    hints.ai_family = PF_UNSPEC;
+	    error = getaddrinfo(hostnamebuf, NULL, &hints, &res);
+	    if (!error) {
+		while (res) {
+#ifndef SIN6_LEN
+		    if (SA_LEN(sa) == res->ai_addrlen
+		     && memcmp(sa, res->ai_addr, SA_LEN(sa)) == 0)
+#else
+		    if (sa->sa_len == res->ai_addrlen
+		     && memcmp(sa, res->ai_addr, sa->sa_len) == 0)
+#endif
+		    {
+			break;
+		    }
+		    res = res->ai_next;
 		}
+		if (!res)
+		    error++;
+	    }
+	    if (error) {
+		getnameinfo(sa,
+#ifndef SIN6_LEN
+		    SA_LEN(sa),
+#else
+		    sa->sa_len,
+#endif
+		    hostnamebuf, sizeof(hostnamebuf), NULL, 0, NI_NUMERICHOST);
+		fprintf(stderr, "Bad host: %s != %s\n", name, hostnamebuf);
+		new->noname = NO_REVERSE;
+		free(name);
+		name = strdup(hostnamebuf);
 	    }
 	}
 	new->hostname = name;
@@ -211,6 +254,7 @@
     char *ipstring;
     struct nsrec *current;
     char *errstring[MAX_ERR + 3];
+    char hostnamebuf[MAXHOSTNAMELEN];
 
     for (i = 0; i < MAX_ERR + 3; i++)
 	errstring[i] = "Unknown error";
@@ -242,7 +286,14 @@
 
     for (i = 0; i < BUCKETS; i++)
 	for (current = nscache[i]; current != NULL; current = current->next) {
-	    ipstring = inet_ntoa(current->ipnum);
+	    getnameinfo((struct sockaddr *)&current->addr,
+#ifndef SIN6_LEN
+		    SA_LEN((struct sockaddr *)&current->addr),
+#else
+		    current->addr.ss_len,
+#endif
+		    hostnamebuf, sizeof(hostnamebuf), NULL, 0, NI_NUMERICHOST);
+	    ipstring = hostnamebuf;
 	    if (current->noname == 0)
 		fprintf(output, "  %3d  %15s - %s\n", i, ipstring,
 			current->hostname);
@@ -276,9 +327,10 @@
 
 int main (int argc, char *argv[])
 {
-    struct in_addr ipnum;
     char *bar, hoststring[MAXDNAME + 1], line[MAXLINE], *statfile;
     int i, check;
+    struct addrinfo hints, *res;
+    int error;
 
 #ifdef WIN32
     WSADATA wsaData;
@@ -322,8 +374,10 @@
 	bar = strchr(line, ' ');
 	if (bar != NULL)
 	    *bar = '\0';
-	ipnum.s_addr = inet_addr(line);
-	if (ipnum.s_addr == 0xffffffffu) {
+	memset(&hints, 0, sizeof(hints));
+	hints.ai_family = PF_UNSPEC;
+	error = getaddrinfo(line, NULL, &hints, &res);
+	if (error) {
 	    if (bar != NULL)
 		*bar = ' ';
 	    puts(line);
@@ -333,11 +387,12 @@
 
 	resolves++;
 
-	cgethost(ipnum, hoststring, check);
+	cgethost(res->ai_addr, hoststring, check);
 	if (bar != NULL)
 	    printf("%s %s\n", hoststring, bar + 1);
 	else
 	    puts(hoststring);
+	freeaddrinfo(res);
     }
 
 #ifdef WIN32
@@ -358,3 +413,11 @@
 
     return (0);
 }
+
+#ifdef NEED_GETADDRINFO
+#include "../main/getaddrinfo.c"
+#endif
+
+#ifdef NEED_GETNAMEINFO
+#include "../main/getnameinfo.c"
+#endif