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pax_global_header 0000666 0000000 0000000 00000000064 11733001254 0014506 g ustar 00root root 0000000 0000000 52 comment=497ea5c9d998385c4b877ff4e7995d85aefd066b
xhost-1.0.5/ 0000755 0000000 0000000 00000000000 11733001254 0012654 5 ustar 00root root 0000000 0000000 xhost-1.0.5/.gitignore 0000644 0000000 0000000 00000001754 11733001254 0014653 0 ustar 00root root 0000000 0000000 #
# X.Org module default exclusion patterns
# The next section if for module specific patterns
#
# Do not edit the following section
# GNU Build System (Autotools)
aclocal.m4
autom4te.cache/
autoscan.log
ChangeLog
compile
config.guess
config.h
config.h.in
config.log
config-ml.in
config.py
config.status
config.status.lineno
config.sub
configure
configure.scan
depcomp
.deps/
INSTALL
install-sh
.libs/
libtool
libtool.m4
ltmain.sh
lt~obsolete.m4
ltoptions.m4
ltsugar.m4
ltversion.m4
Makefile
Makefile.in
mdate-sh
missing
mkinstalldirs
*.pc
py-compile
stamp-h?
symlink-tree
texinfo.tex
ylwrap
# Do not edit the following section
# Edit Compile Debug Document Distribute
*~
*.[0-9]
*.[0-9]x
*.bak
*.bin
core
*.dll
*.exe
*-ISO*.bdf
*-JIS*.bdf
*-KOI8*.bdf
*.kld
*.ko
*.ko.cmd
*.lai
*.l[oa]
*.[oa]
*.obj
*.patch
*.so
*.pcf.gz
*.pdb
*.tar.bz2
*.tar.gz
#
# Add & Override patterns for xhost
#
# Edit the following section as needed
# For example, !report.pc overrides *.pc. See 'man gitignore'
#
xhost
xhost-1.0.5/AUTHORS 0000644 0000000 0000000 00000000153 11733001254 0013723 0 ustar 00root root 0000000 0000000 Original authors:
Bob Scheifler, MIT Laboratory for Computer Science
Jim Gettys, MIT Project Athena (DEC) xhost-1.0.5/COPYING 0000644 0000000 0000000 00000005170 11733001254 0013712 0 ustar 00root root 0000000 0000000 Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice (including the next
paragraph) shall be included in all copies or substantial portions of the
Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
Copyright 1985, 1986, 1987, 1998 The Open Group
All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, and/or sell copies of the Software, and to permit persons
to whom the Software is furnished to do so, provided that the above
copyright notice(s) and this permission notice appear in all copies of
the Software and that both the above copyright notice(s) and this
permission notice appear in supporting documentation.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
Except as contained in this notice, the name of a copyright holder
shall not be used in advertising or otherwise to promote the sale, use
or other dealings in this Software without prior written authorization
of the copyright holder.
X Window System is a trademark of The Open Group.
xhost-1.0.5/Makefile.am 0000644 0000000 0000000 00000000456 11733001254 0014715 0 ustar 00root root 0000000 0000000 SUBDIRS = man
bin_PROGRAMS = xhost
xhost_SOURCES = xhost.c
AM_CFLAGS = $(CWARNFLAGS) $(XHOST_CFLAGS) $(XAU_CFLAGS)
xhost_LDADD = $(XHOST_LIBS)
MAINTAINERCLEANFILES = ChangeLog INSTALL
.PHONY: ChangeLog INSTALL
INSTALL:
$(INSTALL_CMD)
ChangeLog:
$(CHANGELOG_CMD)
dist-hook: ChangeLog INSTALL
xhost-1.0.5/README 0000644 0000000 0000000 00000001335 11733001254 0013536 0 ustar 00root root 0000000 0000000 xhost is used to manage the list of host names or user names
allowed to make connections to the X server.
All questions regarding this software should be directed at the
Xorg mailing list:
http://lists.freedesktop.org/mailman/listinfo/xorg
Please submit bug reports to the Xorg bugzilla:
https://bugs.freedesktop.org/enter_bug.cgi?product=xorg
The master development code repository can be found at:
git://anongit.freedesktop.org/git/xorg/app/xhost
http://cgit.freedesktop.org/xorg/app/xhost
For patch submission instructions, see:
http://www.x.org/wiki/Development/Documentation/SubmittingPatches
For more information on the git code manager, see:
http://wiki.x.org/wiki/GitPage
xhost-1.0.5/autogen.sh 0000755 0000000 0000000 00000000304 11733001254 0014652 0 ustar 00root root 0000000 0000000 #! /bin/sh
srcdir=`dirname $0`
test -z "$srcdir" && srcdir=.
ORIGDIR=`pwd`
cd $srcdir
autoreconf -v --install || exit 1
cd $ORIGDIR || exit $?
$srcdir/configure --enable-maintainer-mode "$@"
xhost-1.0.5/configure.ac 0000644 0000000 0000000 00000001701 11733001254 0015141 0 ustar 00root root 0000000 0000000 dnl Process this file with autoconf to create configure.
# Initialize Autoconf
AC_PREREQ([2.60])
AC_INIT([xhost], [1.0.5],
[https://bugs.freedesktop.org/enter_bug.cgi?product=xorg], [xhost])
AC_CONFIG_SRCDIR([Makefile.am])
AC_CONFIG_HEADERS([config.h])
# Initialize Automake
AM_INIT_AUTOMAKE([foreign dist-bzip2])
AM_MAINTAINER_MODE
# Require X.Org macros 1.8 or later for MAN_SUBSTS set by XORG_MANPAGE_SECTIONS
m4_ifndef([XORG_MACROS_VERSION],
[m4_fatal([must install xorg-macros 1.8 or later before running autoconf/autogen])])
XORG_MACROS_VERSION(1.8)
XORG_DEFAULT_OPTIONS
AC_TYPE_SIGNAL
# Checks for pkg-config packages
# - Both CFLAGS & LIBS needed:
PKG_CHECK_MODULES(XHOST, x11 xmuu)
# - Only CFLAGS needed, not libs:
PKG_CHECK_MODULES(XAU, xau)
# Transport selection macro from xtrans.m4
XTRANS_CONNECTION_FLAGS
# Secure RPC detection macro from xtrans.m4
XTRANS_SECURE_RPC_FLAGS
AC_CONFIG_FILES([
Makefile
man/Makefile])
AC_OUTPUT
xhost-1.0.5/man/ 0000755 0000000 0000000 00000000000 11733001254 0013427 5 ustar 00root root 0000000 0000000 xhost-1.0.5/man/Makefile.am 0000644 0000000 0000000 00000000523 11733001254 0015463 0 ustar 00root root 0000000 0000000
appmandir = $(APP_MAN_DIR)
appman_PRE = xhost.man
appman_DATA = $(appman_PRE:man=$(APP_MAN_SUFFIX))
EXTRA_DIST = $(appman_PRE)
CLEANFILES = $(appman_DATA)
SUFFIXES = .$(APP_MAN_SUFFIX) .man
# String replacements in MAN_SUBSTS now come from xorg-macros.m4 via configure
.man.$(APP_MAN_SUFFIX):
$(AM_V_GEN)$(SED) $(MAN_SUBSTS) < $< > $@
xhost-1.0.5/man/xhost.man 0000644 0000000 0000000 00000017554 11733001254 0015305 0 ustar 00root root 0000000 0000000 .\" Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
.\"
.\" Permission is hereby granted, free of charge, to any person obtaining a
.\" copy of this software and associated documentation files (the "Software"),
.\" to deal in the Software without restriction, including without limitation
.\" the rights to use, copy, modify, merge, publish, distribute, sublicense,
.\" and/or sell copies of the Software, and to permit persons to whom the
.\" Software is furnished to do so, subject to the following conditions:
.\"
.\" The above copyright notice and this permission notice (including the next
.\" paragraph) shall be included in all copies or substantial portions of the
.\" Software.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
.\" IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
.\" FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
.\" THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
.\" LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
.\" FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
.\" DEALINGS IN THE SOFTWARE.
.\"
.\" Copyright 1988, 1998 The Open Group
.\"
.\" Permission is hereby granted, free of charge, to any person obtaining a
.\" copy of this software and associated documentation files (the
.\" "Software"), to deal in the Software without restriction, including
.\" without limitation the rights to use, copy, modify, merge, publish,
.\" distribute, and/or sell copies of the Software, and to permit persons
.\" to whom the Software is furnished to do so, provided that the above
.\" copyright notice(s) and this permission notice appear in all copies of
.\" the Software and that both the above copyright notice(s) and this
.\" permission notice appear in supporting documentation.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
.\" OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
.\" HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
.\" INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
.\" FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
.\" NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
.\" WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.\" Except as contained in this notice, the name of a copyright holder
.\" shall not be used in advertising or otherwise to promote the sale, use
.\" or other dealings in this Software without prior written authorization
.\" of the copyright holder.
.\"
.\" X Window System is a trademark of The Open Group.
.\"
.TH XHOST 1 __xorgversion__
.SH NAME
xhost \- server access control program for X
.SH SYNOPSIS
.B xhost
[[+\-]name ...]
.SH DESCRIPTION
The \fIxhost\fP program
is used to add and delete host names or user names to the list allowed
to make connections to the X server. In the case of hosts, this provides
a rudimentary form of privacy control and security. It is only sufficient
for a workstation (single user) environment, although it does limit the
worst abuses. Environments which require more sophisticated measures should
implement the user-based mechanism or use the hooks in the
protocol for passing other authentication data to the server.
.SH OPTIONS
\fIXhost\fP accepts the following command line options described below. For
security, the options that affect access control may only be run from the
"controlling host". For workstations, this is the same machine as the
server. For X terminals, it is the login host.
.TP 8
.B \-help
Prints a usage message.
.TP 8
.BI "[+]" "name"
The given \fIname\fP (the plus sign is optional)
is added to the list allowed to connect to the X server.
The name can be a host name or a complete name (See
.SM
.B NAMES
for more details).
.TP 8
.BI \- "name"
The given \fIname\fP is removed from the list of allowed
to connect to the server. The name can be a host name or a complete
name (See
.SM
.B NAMES
for more details).
Existing connections are not broken, but new
connection attempts will be denied.
Note that the current machine is allowed to be removed; however, further
connections (including attempts to add it back) will not be permitted.
Resetting the server (thereby breaking all connections)
is the only way to allow local connections again.
.TP 8
.B \+
Access is granted to everyone, even if they aren't on the list
(i.e., access control is turned off).
.TP 8
.B \-
Access is restricted to only those on the list
(i.e., access control is turned on).
.TP 8
.I nothing
If no command line arguments are given,
a message indicating whether or not access control is currently enabled
is printed, followed by the list of those allowed to connect.
This is the only option that may be used from machines other than
the controlling host.
.SH NAMES
A complete name has the syntax
``family:name'' where the families are
as follows:
.PP
.nf
.ta 1i
inet Internet host (IPv4)
inet6 Internet host (IPv6)
dnet DECnet host
nis Secure RPC network name
krb Kerberos V5 principal
local contains only one name, the empty string
si Server Interpreted
.fi
.PP
The family is case insensitive.
The format of the name varies with the family.
.PP
When Secure RPC is being used, the
network independent netname (e.g., "nis:unix.\fIuid\fP@\fIdomainname\fP") can
be specified, or a local user can be specified with just the username
and a trailing at-sign (e.g., "nis:pat@").
.PP
For backward compatibility with pre-R6 \fIxhost\fP,
names that contain an at-sign (@) are assumed to be in the nis family.
Otherwise they are assumed to be Internet addresses. If compiled to support
IPv6, then all IPv4 and IPv6 addresses returned by getaddrinfo(__libmansuffix__) are added to
the access list in the appropriate inet or inet6 family.
.PP
The local family specifies all the local connections at once. However,
the server interpreted address "si:localuser:\fIusername\fP" can be
used to specify a single local user. (See the
\fIXsecurity\fP(__miscmansuffix__) manual page for more details.)
.PP
Server interpreted addresses consist of a case-sensitive type tag and a
string representing a given value, separated by a colon. For example,
"si:hostname:almas" is a server interpreted address of type \fIhostname\fP,
with a value of \fIalmas\fP. For more information on the available forms
of server interpreted addresses, see the \fIXsecurity\fP(__miscmansuffix__)
manual page.
.PP
The initial access control list for display number \fBn\fP
may be set by the file \fI/etc/X\fBn\fI.hosts\fR, where
\fBn\fP is the display number of the server. See \fIXserver\fP(__appmansuffix__)
for details.
.SH DIAGNOSTICS
For each name added to the access control list,
a line of the form "\fIname\fP being added to access control list"
is printed.
For each name removed from the access control list,
a line of the form "\fIname\fP being removed from access control list"
is printed.
.SH "SEE ALSO"
X(__miscmansuffix__), Xsecurity(__miscmansuffix__), Xserver(__appmansuffix__), xdm(__appmansuffix__), xauth(__appmansuffix__), getaddrinfo(__libmansuffix__)
.SH ENVIRONMENT
.TP 8
.B DISPLAY
to get the default host and display to use.
.SH BUGS
.PP
You can't specify a display on the command line because
.B \-display
is a valid command line argument (indicating that you want
to remove the machine named
.I ``display''
from the access list).
.PP
The X server stores network addresses, not host names, unless you use
the server-interpreted hostname type address. If somehow you change a
host's network address while the server is still running, and you are
using a network-address based form of authentication, \fIxhost\fP must
be used to add the new address and/or remove the old address.
.SH AUTHORS
Bob Scheifler, MIT Laboratory for Computer Science,
.br
Jim Gettys, MIT Project Athena (DEC).
xhost-1.0.5/xhost.c 0000644 0000000 0000000 00000061526 11733001254 0014177 0 ustar 00root root 0000000 0000000 /*
* Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
/*
Copyright 1985, 1986, 1987, 1998 The Open Group
All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, and/or sell copies of the Software, and to permit persons
to whom the Software is furnished to do so, provided that the above
copyright notice(s) and this permission notice appear in all copies of
the Software and that both the above copyright notice(s) and this
permission notice appear in supporting documentation.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
Except as contained in this notice, the name of a copyright holder
shall not be used in advertising or otherwise to promote the sale, use
or other dealings in this Software without prior written authorization
of the copyright holder.
X Window System is a trademark of The Open Group.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#if defined(TCPCONN) || defined(STREAMSCONN)
#define NEEDSOCKETS
#endif
#ifdef UNIXCONN
#define NEEDSOCKETS
#endif
#ifdef DNETCONN
#define NEEDSOCKETS
#endif
#include <X11/Xlib.h>
#include <X11/Xos.h>
#include <X11/Xproto.h>
#include <X11/Xfuncs.h>
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#ifdef X_NOT_POSIX
#include <setjmp.h>
#endif
#include <ctype.h>
#include <X11/Xauth.h>
#include <X11/Xmu/Error.h>
#include <stdlib.h>
#ifdef NEEDSOCKETS
#ifdef att
typedef unsigned short unsign16;
typedef unsigned long unsign32;
typedef short sign16;
typedef long sign32;
#include <interlan/socket.h>
#include <interlan/netdb.h>
#include <interlan/in.h>
#else
#ifndef Lynx
#include <sys/socket.h>
#else
#include <socket.h>
#endif
#include <netdb.h>
#include <netinet/in.h>
#endif
#endif /* NEEDSOCKETS */
#ifndef BAD_ARPAINET
#include <arpa/inet.h>
#else
/* bogus definition of inet_makeaddr() in BSD 4.2 and Ultrix */
extern unsigned long inet_makeaddr();
#endif
#ifdef DNETCONN
#include <netdnet/dn.h>
#include <netdnet/dnetdb.h>
#endif
#ifdef SECURE_RPC
#include <pwd.h>
#include <rpc/rpc.h>
#ifdef X_POSIX_C_SOURCE
#define _POSIX_C_SOURCE X_POSIX_C_SOURCE
#include <limits.h>
#undef _POSIX_C_SOURCE
#else
#if defined(X_NOT_POSIX) || defined(_POSIX_SOURCE)
#include <limits.h>
#else
#define _POSIX_SOURCE
#include <limits.h>
#undef _POSIX_SOURCE
#endif
#endif
#ifndef NGROUPS_MAX
#include <sys/param.h>
#define NGROUPS_MAX NGROUPS
#endif
#ifdef sun
/* Go figure, there's no getdomainname() prototype available */
extern int getdomainname(char *name, size_t len);
#endif
#endif
static int change_host(Display *dpy, char *name, Bool add);
static const char *get_hostname(XHostAddress *ha);
static int local_xerror(Display *dpy, XErrorEvent *rep);
#ifdef RETSIGTYPE /* autoconf AC_TYPE_SIGNAL */
# define signal_t RETSIGTYPE
#else /* Imake */
#ifdef SIGNALRETURNSINT
#define signal_t int
#else
#define signal_t void
#endif
#endif /* RETSIGTYPE */
static signal_t nameserver_lost(int sig);
#define NAMESERVER_TIMEOUT 5 /* time to wait for nameserver */
static volatile int nameserver_timedout;
static char *ProgramName;
#ifdef NEEDSOCKETS
static int
XFamily(int af)
{
int i;
static struct _familyMap {
int af, xf;
} familyMap[] = {
#ifdef AF_DECnet
{ AF_DECnet, FamilyDECnet },
#endif
#ifdef AF_CHAOS
{ AF_CHAOS, FamilyChaos },
#endif
#ifdef AF_INET
{ AF_INET, FamilyInternet },
#if defined(IPv6) && defined(AF_INET6)
{ AF_INET6, FamilyInternet6 },
#endif
#endif
};
#define FAMILIES ((sizeof familyMap)/(sizeof familyMap[0]))
for (i = 0; i < FAMILIES; i++)
if (familyMap[i].af == af) return familyMap[i].xf;
return -1;
}
#endif /* NEEDSOCKETS */
static Display *dpy;
int
main(int argc, char *argv[])
{
register char *arg;
int i, nhosts = 0;
const char *hostname;
int nfailed = 0;
XHostAddress *list;
Bool enabled = False;
#ifdef DNETCONN
char *dnet_htoa();
struct nodeent *np;
struct dn_naddr *nlist, dnaddr, *dnaddrp, *dnet_addr();
char *cp;
#endif
ProgramName = argv[0];
if (argc == 2 && !strcmp(argv[1], "-help")) {
fprintf(stderr, "usage: %s [[+-]hostname ...]\n", argv[0]);
exit(1);
}
if ((dpy = XOpenDisplay(NULL)) == NULL) {
fprintf(stderr, "%s: unable to open display \"%s\"\n",
ProgramName, XDisplayName (NULL));
exit(1);
}
XSetErrorHandler(local_xerror);
if (argc == 1) {
#ifdef DNETCONN
setnodeent(1); /* keep the database accessed */
#endif
sethostent(1); /* don't close the data base each time */
list = XListHosts(dpy, &nhosts, &enabled);
if (enabled)
printf ("access control enabled, only authorized clients can connect\n");
else
printf ("access control disabled, clients can connect from any host\n");
if (nhosts != 0) {
for (i = 0; i < nhosts; i++ ) {
hostname = get_hostname(&list[i]);
if (hostname) {
switch (list[i].family) {
case FamilyInternet:
printf("INET:");
break;
case FamilyInternet6:
printf("INET6:");
break;
case FamilyDECnet:
printf("DNET:");
break;
case FamilyNetname:
printf("NIS:");
break;
case FamilyKrb5Principal:
printf("KRB:");
break;
case FamilyLocalHost:
printf("LOCAL:");
break;
case FamilyServerInterpreted:
printf("SI:");
break;
default:
printf("<unknown family type %d>:", list[i].family);
break;
}
printf ("%s", hostname);
} else {
printf ("<unknown address in family %d>",
list[i].family);
}
if (nameserver_timedout) {
printf("\t(no nameserver response within %d seconds)\n",
NAMESERVER_TIMEOUT);
nameserver_timedout = 0;
} else
printf("\n");
}
free(list);
endhostent();
}
exit(0);
}
for (i = 1; i < argc; i++) {
arg = argv[i];
if (*arg == '-') {
if (!argv[i][1] && ((i+1) == argc)) {
printf ("access control enabled, only authorized clients can connect\n");
XEnableAccessControl(dpy);
} else {
arg = argv[i][1]? &argv[i][1] : argv[++i];
if (!change_host (dpy, arg, False)) {
fprintf (stderr, "%s: bad hostname \"%s\"\n",
ProgramName, arg);
nfailed++;
}
}
} else {
if (*arg == '+' && !argv[i][1] && ((i+1) == argc)) {
printf ("access control disabled, clients can connect from any host\n");
XDisableAccessControl(dpy);
} else {
if (*arg == '+') {
arg = argv[i][1]? &argv[i][1] : argv[++i];
}
if (!change_host (dpy, arg, True)) {
fprintf (stderr, "%s: bad hostname \"%s\"\n",
ProgramName, arg);
nfailed++;
}
}
}
}
XCloseDisplay (dpy); /* does an XSync first */
exit(nfailed);
}
/*
* change_host - edit the list of hosts that may connect to the server;
* it parses DECnet names (expo::), Internet addresses (18.30.0.212), or
* Internet names (expo.lcs.mit.edu); if 4.3bsd macro h_addr is defined
* (from <netdb.h>), it will add or remove all addresses with the given
* address.
*/
static int
change_host(Display *dpy, char *name, Bool add)
{
XHostAddress ha;
char *lname;
int namelen, i, family = FamilyWild;
#ifdef K5AUTH
krb5_principal princ;
krb5_data kbuf;
#endif
#ifdef NEEDSOCKETS
static struct in_addr addr; /* so we can point at it */
#if defined(IPv6) && defined(AF_INET6)
static struct in6_addr addr6; /* so we can point at it */
#else
struct hostent *hp;
#endif
#endif
char *cp;
#ifdef DNETCONN
struct dn_naddr *dnaddrp;
struct nodeent *np;
static struct dn_naddr dnaddr;
#endif /* DNETCONN */
static const char *add_msg = "being added to access control list";
static const char *remove_msg = "being removed from access control list";
namelen = strlen(name);
if ((lname = (char *)malloc(namelen+1)) == NULL) {
fprintf (stderr, "%s: malloc bombed in change_host\n", ProgramName);
exit (1);
}
for (i = 0; i < namelen; i++) {
lname[i] = tolower(name[i]);
}
lname[namelen] = '\0';
if (!strncmp("inet:", lname, 5)) {
#if defined(TCPCONN) || defined(STREAMSCONN)
family = FamilyInternet;
name += 5;
#else
fprintf (stderr, "%s: not compiled for TCP/IP\n", ProgramName);
free(lname);
return 0;
#endif
}
else if (!strncmp("inet6:", lname, 6)) {
#if (defined(TCPCONN) || defined(STREAMSCONN)) && \
defined(IPv6) && defined(AF_INET6)
family = FamilyInternet6;
name += 6;
#else
fprintf (stderr, "%s: not compiled for IPv6\n", ProgramName);
free(lname);
return 0;
#endif
}
#ifdef ACCEPT_INETV6 /* Allow inetv6 as an alias for inet6 for compatibility
with original X11 over IPv6 draft. */
else if (!strncmp("inetv6:", lname, 7)) {
#if (defined(TCPCONN) || defined(STREAMSCONN)) && \
defined(IPv6) && defined(AF_INET6)
family = FamilyInternet6;
name += 7;
#else
fprintf (stderr, "%s: not compiled for IPv6\n", ProgramName);
free(lname);
return 0;
#endif
}
#endif /* ACCEPT_INETV6 */
else if (!strncmp("dnet:", lname, 5)) {
#ifdef DNETCONN
family = FamilyDECnet;
name += 5;
#else
fprintf (stderr, "%s: not compiled for DECnet\n", ProgramName);
free(lname);
return 0;
#endif
}
else if (!strncmp("nis:", lname, 4)) {
#ifdef SECURE_RPC
family = FamilyNetname;
name += 4;
#else
fprintf (stderr, "%s: not compiled for Secure RPC\n", ProgramName);
free(lname);
return 0;
#endif
}
else if (!strncmp("krb:", lname, 4)) {
#ifdef K5AUTH
family = FamilyKrb5Principal;
name +=4;
#else
fprintf (stderr, "%s: not compiled for Kerberos 5\n", ProgramName);
free(lname);
return 0;
#endif
}
else if (!strncmp("local:", lname, 6)) {
family = FamilyLocalHost;
}
else if (!strncmp("si:", lname, 3)) {
family = FamilyServerInterpreted;
name += 3;
}
if (family == FamilyWild && (cp = strchr(lname, ':'))) {
*cp = '\0';
fprintf (stderr, "%s: unknown address family \"%s\"\n",
ProgramName, lname);
free(lname);
return 0;
}
free(lname);
if (family == FamilyServerInterpreted) {
XServerInterpretedAddress siaddr;
int rc;
cp = strchr(name, ':');
if (cp == NULL || cp == name) {
fprintf(stderr,
"%s: type must be specified for server interpreted family \"%s\"\n",
ProgramName, name);
return 0;
}
siaddr.type = name;
siaddr.typelength = cp - name;
siaddr.value = ++cp;
siaddr.valuelength = strlen(cp);
ha.family = FamilyServerInterpreted;
ha.address = (char *) &siaddr;
if (add)
rc = XAddHost(dpy, &ha);
else
rc = XRemoveHost(dpy, &ha);
printf( "%s %s%s\n", name, rc == 1 ? "" : "failed when ",
add ? add_msg : remove_msg);
if (rc != 1)
return 0;
return 1;
}
#ifdef DNETCONN
if (family == FamilyDECnet || ((family == FamilyWild) &&
(cp = strchr(name, ':')) && (*(cp + 1) == ':') &&
!(*cp = '\0'))) {
ha.family = FamilyDECnet;
if (dnaddrp = dnet_addr(name)) {
dnaddr = *dnaddrp;
} else {
if ((np = getnodebyname (name)) == NULL) {
fprintf (stderr, "%s: unable to get node name for \"%s::\"\n",
ProgramName, name);
return 0;
}
dnaddr.a_len = np->n_length;
memmove( dnaddr.a_addr, np->n_addr, np->n_length);
}
ha.length = sizeof(struct dn_naddr);
ha.address = (char *)&dnaddr;
if (add) {
XAddHost (dpy, &ha);
printf ("%s:: %s\n", name, add_msg);
} else {
XRemoveHost (dpy, &ha);
printf ("%s:: %s\n", name, remove_msg);
}
return 1;
}
#endif /* DNETCONN */
#ifdef K5AUTH
if (family == FamilyKrb5Principal) {
krb5_error_code retval;
retval = krb5_parse_name(name, &princ);
if (retval) {
krb5_init_ets(); /* init krb errs for error_message() */
fprintf(stderr, "%s: cannot parse Kerberos name: %s\n",
ProgramName, error_message(retval));
return 0;
}
XauKrb5Encode(princ, &kbuf);
ha.length = kbuf.length;
ha.address = kbuf.data;
ha.family = family;
if (add)
XAddHost(dpy, &ha);
else
XRemoveHost(dpy, &ha);
krb5_free_principal(princ);
free(kbuf.data);
printf( "%s %s\n", name, add ? add_msg : remove_msg);
return 1;
}
#endif
if (family == FamilyLocalHost) {
ha.length = 0;
ha.address = "";
ha.family = family;
if (add)
XAddHost(dpy, &ha);
else
XRemoveHost(dpy, &ha);
printf( "non-network local connections %s\n", add ? add_msg : remove_msg);
return 1;
}
/*
* If it has an '@', it's a netname
*/
if ((family == FamilyNetname && (cp = strchr(name, '@'))) ||
(cp = strchr(name, '@'))) {
char *netname = name;
#ifdef SECURE_RPC
static char username[MAXNETNAMELEN];
if (!cp[1]) {
struct passwd *pwd;
static char domainname[128];
*cp = '\0';
pwd = getpwnam(name);
if (!pwd) {
fprintf(stderr, "no such user \"%s\"\n", name);
return 0;
}
getdomainname(domainname, sizeof(domainname));
if (!user2netname(username, pwd->pw_uid, domainname)) {
fprintf(stderr, "failed to get netname for \"%s\"\n", name);
return 0;
}
netname = username;
}
#endif
ha.family = FamilyNetname;
ha.length = strlen(netname);
ha.address = netname;
if (add)
XAddHost (dpy, &ha);
else
XRemoveHost (dpy, &ha);
if (netname != name)
printf ("%s@ (%s) %s\n", name, netname, add ? add_msg : remove_msg);
else
printf ("%s %s\n", netname, add ? add_msg : remove_msg);
return 1;
}
#ifdef NEEDSOCKETS
/*
* First see if inet_addr() can grok the name; if so, then use it.
*/
if (((family == FamilyWild) || (family == FamilyInternet)) &&
((addr.s_addr = inet_addr(name)) != -1)) {
ha.family = FamilyInternet;
ha.length = 4; /* but for Cray would be sizeof(addr.s_addr) */
ha.address = (char *)&addr; /* but for Cray would be &addr.s_addr */
if (add) {
XAddHost (dpy, &ha);
printf ("%s %s\n", name, add_msg);
} else {
XRemoveHost (dpy, &ha);
printf ("%s %s\n", name, remove_msg);
}
return 1;
}
#if defined(IPv6) && defined(AF_INET6)
/*
* Check to see if inet_pton() can grok it as an IPv6 address
*/
else if (((family == FamilyWild) || (family == FamilyInternet6)) &&
(inet_pton(AF_INET6, name, &addr6.s6_addr) == 1)) {
ha.family = FamilyInternet6;
ha.length = sizeof(addr6.s6_addr);
ha.address = (char *) &addr6.s6_addr;
if (add) {
XAddHost (dpy, &ha);
printf ("%s %s\n", name, add_msg);
} else {
XRemoveHost (dpy, &ha);
printf ("%s %s\n", name, remove_msg);
}
return 1;
} else {
/*
* Is it in the namespace?
*
* If no family was specified, use both Internet v4 & v6 addresses.
* Otherwise, use only addresses matching specified family.
*/
struct addrinfo *addresses;
struct addrinfo *a;
Bool didit = False;
if (getaddrinfo(name, NULL, NULL, &addresses) != 0)
return 0;
for (a = addresses; a != NULL; a = a->ai_next) {
if ( ((a->ai_family == AF_INET) && (family != FamilyInternet6))
|| ((a->ai_family == AF_INET6) && (family != FamilyInternet)) ) {
char ad[INET6_ADDRSTRLEN];
ha.family = XFamily(a->ai_family);
if (a->ai_family == AF_INET6) {
ha.address = (char *)
&((struct sockaddr_in6 *) a->ai_addr)->sin6_addr;
ha.length =
sizeof (((struct sockaddr_in6 *) a->ai_addr)->sin6_addr);
} else {
ha.address = (char *)
&((struct sockaddr_in *) a->ai_addr)->sin_addr;
ha.length =
sizeof (((struct sockaddr_in *) a->ai_addr)->sin_addr);
}
inet_ntop(a->ai_family, ha.address, ad, sizeof(ad));
/* printf("Family: %d\nLength: %d\n", a->ai_family, ha.length); */
/* printf("Address: %s\n", ad); */
if (add) {
XAddHost (dpy, &ha);
} else {
XRemoveHost (dpy, &ha);
}
didit = True;
}
}
if (didit == True) {
printf ("%s %s\n", name, add ? add_msg : remove_msg);
} else {
const char *familyMsg = "";
if (family == FamilyInternet6) {
familyMsg = "inet6 ";
} else if (family == FamilyInternet) {
familyMsg = "inet ";
}
fprintf(stderr, "%s: unable to get %saddress for \"%s\"\n",
ProgramName, familyMsg, name);
}
freeaddrinfo(addresses);
return 1;
}
#else /* !IPv6 */
/*
* Is it in the namespace?
*/
else if (((hp = gethostbyname(name)) == (struct hostent *)NULL)
|| hp->h_addrtype != AF_INET) {
return 0;
} else {
ha.family = XFamily(hp->h_addrtype);
ha.length = hp->h_length;
#ifdef h_addr /* new 4.3bsd version of gethostent */
{
char **list;
/* iterate over the hosts */
for (list = hp->h_addr_list; *list; list++) {
ha.address = *list;
if (add) {
XAddHost (dpy, &ha);
} else {
XRemoveHost (dpy, &ha);
}
}
}
#else
ha.address = hp->h_addr;
if (add) {
XAddHost (dpy, &ha);
} else {
XRemoveHost (dpy, &ha);
}
#endif
printf ("%s %s\n", name, add ? add_msg : remove_msg);
return 1;
}
#endif /* IPv6 */
#else /* NEEDSOCKETS */
return 0;
#endif /* NEEDSOCKETS */
}
/*
* get_hostname - Given an internet address, return a name (CHARON.MIT.EDU)
* or a string representing the address (18.58.0.13) if the name cannot
* be found.
*/
#ifdef X_NOT_POSIX
jmp_buf env;
#endif
static const char *
get_hostname(XHostAddress *ha)
{
#if (defined(TCPCONN) || defined(STREAMSCONN)) && \
(!defined(IPv6) || !defined(AF_INET6))
static struct hostent *hp = NULL;
#endif
#ifdef DNETCONN
struct nodeent *np;
static char nodeaddr[5 + 2 * DN_MAXADDL];
#endif /* DNETCONN */
#ifdef K5AUTH
krb5_principal princ;
krb5_data kbuf;
char *kname;
static char kname_out[255];
#endif
#ifndef X_NOT_POSIX
struct sigaction sa;
#endif
#if defined(TCPCONN) || defined(STREAMSCONN)
#if defined(IPv6) && defined(AF_INET6)
if ((ha->family == FamilyInternet) || (ha->family == FamilyInternet6)) {
struct sockaddr_storage saddr;
static char inetname[NI_MAXHOST];
int saddrlen;
inetname[0] = '\0';
memset(&saddr, 0, sizeof saddr);
if (ha->family == FamilyInternet) {
struct sockaddr_in *sin = (struct sockaddr_in *) &saddr;
#ifdef BSD44SOCKETS
sin->sin_len = sizeof(struct sockaddr_in);
#endif
sin->sin_family = AF_INET;
sin->sin_port = 0;
memcpy(&sin->sin_addr, ha->address, sizeof(sin->sin_addr));
saddrlen = sizeof(struct sockaddr_in);
} else {
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) &saddr;
#ifdef SIN6_LEN
sin6->sin6_len = sizeof(struct sockaddr_in6);
#endif
sin6->sin6_family = AF_INET6;
sin6->sin6_port = 0;
memcpy(&sin6->sin6_addr, ha->address, sizeof(sin6->sin6_addr));
saddrlen = sizeof(struct sockaddr_in6);
}
/* gethostbyaddr can take a LONG time if the host does not exist.
Assume that if it does not respond in NAMESERVER_TIMEOUT seconds
that something is wrong and do not make the user wait.
gethostbyaddr will continue after a signal, so we have to
jump out of it.
*/
#ifndef X_NOT_POSIX
memset(&sa, 0, sizeof sa);
sa.sa_handler = nameserver_lost;
sa.sa_flags = 0; /* don't restart syscalls */
sigaction(SIGALRM, &sa, NULL);
#else
signal(SIGALRM, nameserver_lost);
#endif
alarm(NAMESERVER_TIMEOUT);
#ifdef X_NOT_POSIX
if (setjmp(env) == 0)
#endif
{
getnameinfo((struct sockaddr *) &saddr, saddrlen, inetname,
sizeof(inetname), NULL, 0, 0);
}
alarm(0);
if (nameserver_timedout || inetname[0] == '\0')
inet_ntop(((struct sockaddr *)&saddr)->sa_family, ha->address,
inetname, sizeof(inetname));
return inetname;
}
#else
if (ha->family == FamilyInternet) {
#ifdef CRAY
struct in_addr t_addr;
bzero((char *)&t_addr, sizeof(t_addr));
bcopy(ha->address, (char *)&t_addr, 4);
ha->address = (char *)&t_addr;
#endif
/* gethostbyaddr can take a LONG time if the host does not exist.
Assume that if it does not respond in NAMESERVER_TIMEOUT seconds
that something is wrong and do not make the user wait.
gethostbyaddr will continue after a signal, so we have to
jump out of it.
*/
#ifndef X_NOT_POSIX
memset(&sa, 0, sizeof sa);
sa.sa_handler = nameserver_lost;
sa.sa_flags = 0; /* don't restart syscalls */
sigaction(SIGALRM, &sa, NULL);
#else
signal(SIGALRM, nameserver_lost);
#endif
alarm(4);
#ifdef X_NOT_POSIX
if (setjmp(env) == 0) {
#endif
hp = gethostbyaddr (ha->address, ha->length, AF_INET);
#ifdef X_NOT_POSIX
}
#endif
alarm(0);
if (hp)
return (hp->h_name);
else return (inet_ntoa(*((struct in_addr *)(ha->address))));
}
#endif /* IPv6 */
#endif
if (ha->family == FamilyNetname) {
static char netname[512];
int len;
#ifdef SECURE_RPC
int gidlen;
uid_t uid;
gid_t gid, gidlist[NGROUPS_MAX];
#endif
if (ha->length < sizeof(netname) - 1)
len = ha->length;
else
len = sizeof(netname) - 1;
memmove( netname, ha->address, len);
netname[len] = '\0';
#ifdef SECURE_RPC
if (netname2user(netname, &uid, &gid, &gidlen, gidlist)) {
struct passwd *pwd;
pwd = getpwuid(uid);
if (pwd)
sprintf(netname, "%s@ (%*.*s)", pwd->pw_name,
ha->length, ha->length, ha->address);
}
#endif
return (netname);
}
#ifdef DNETCONN
if (ha->family == FamilyDECnet) {
struct dn_naddr *addr_ptr = (struct dn_naddr *) ha->address;
if (np = getnodebyaddr(addr_ptr->a_addr, addr_ptr->a_len, AF_DECnet)) {
sprintf(nodeaddr, "%s", np->n_name);
} else {
sprintf(nodeaddr, "%s", dnet_htoa(ha->address));
}
return(nodeaddr);
}
#endif
#ifdef K5AUTH
if (ha->family == FamilyKrb5Principal) {
kbuf.data = ha->address;
kbuf.length = ha->length;
XauKrb5Decode(kbuf, &princ);
krb5_unparse_name(princ, &kname);
krb5_free_principal(princ);
strncpy(kname_out, kname, sizeof (kname_out));
free(kname);
return kname_out;
}
#endif
if (ha->family == FamilyLocalHost) {
return "";
}
if (ha->family == FamilyServerInterpreted) {
XServerInterpretedAddress *sip;
static char *addressString;
static size_t addressStringSize;
size_t neededSize;
sip = (XServerInterpretedAddress *) ha->address;
neededSize = sip->typelength + sip->valuelength + 2;
if (addressStringSize < neededSize) {
if (addressString != NULL) {
free(addressString);
}
addressStringSize = neededSize;
addressString = malloc(addressStringSize);
}
if (addressString != NULL) {
char *cp = addressString;
memcpy(cp, sip->type, sip->typelength);
cp += sip->typelength;
*cp++ = ':';
memcpy(cp, sip->value, sip->valuelength);
cp += sip->valuelength;
*cp = '\0';
}
return addressString;
}
return (NULL);
}
/*ARGUSED*/
static signal_t
nameserver_lost(int sig)
{
nameserver_timedout = 1;
#ifdef X_NOT_POSIX
/* not needed with POSIX signals - stuck syscalls will not
be restarted after signal delivery */
longjmp(env, -1);
#endif
}
/*
* local_xerror - local non-fatal error handling routine. If the error was
* that an X_GetHosts request for an unknown address format was received, just
* return, otherwise print the normal error message and continue.
*/
static int
local_xerror(Display *dpy, XErrorEvent *rep)
{
if ((rep->error_code == BadAccess) && (rep->request_code == X_ChangeHosts)) {
fprintf (stderr,
"%s: must be on local machine to add or remove hosts.\n",
ProgramName);
return 1;
} else if ((rep->error_code == BadAccess) &&
(rep->request_code == X_SetAccessControl)) {
fprintf (stderr,
"%s: must be on local machine to enable or disable access control.\n",
ProgramName);
return 1;
} else if ((rep->error_code == BadValue) &&
(rep->request_code == X_ListHosts)) {
return 1;
}
XmuPrintDefaultErrorMessage (dpy, rep, stderr);
return 0;
}
#ifdef __CYGWIN__
void sethostent(int x)
{}
void endhostent()
{}
#endif