pax_global_header00006660000000000000000000000064117330012540014506gustar00rootroot0000000000000052 comment=497ea5c9d998385c4b877ff4e7995d85aefd066b xhost-1.0.5/000075500000000000000000000000001173300125400126545ustar00rootroot00000000000000xhost-1.0.5/.gitignore000064400000000000000000000017541173300125400146530ustar00rootroot00000000000000# # 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/AUTHORS000064400000000000000000000001531173300125400137230ustar00rootroot00000000000000Original authors: Bob Scheifler, MIT Laboratory for Computer Science Jim Gettys, MIT Project Athena (DEC)xhost-1.0.5/COPYING000064400000000000000000000051701173300125400137120ustar00rootroot00000000000000Copyright (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.am000064400000000000000000000004561173300125400147150ustar00rootroot00000000000000SUBDIRS = 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/README000064400000000000000000000013351173300125400135360ustar00rootroot00000000000000xhost 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.sh000075500000000000000000000003041173300125400146520ustar00rootroot00000000000000#! /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.ac000064400000000000000000000017011173300125400151410ustar00rootroot00000000000000dnl 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/000075500000000000000000000000001173300125400134275ustar00rootroot00000000000000xhost-1.0.5/man/Makefile.am000064400000000000000000000005231173300125400154630ustar00rootroot00000000000000 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.man000064400000000000000000000175541173300125400153050ustar00rootroot00000000000000.\" 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.c000064400000000000000000000615261173300125400141770ustar00rootroot00000000000000/* * 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 #include #include #include #include #include #include #ifdef X_NOT_POSIX #include #endif #include #include #include #include #ifdef NEEDSOCKETS #ifdef att typedef unsigned short unsign16; typedef unsigned long unsign32; typedef short sign16; typedef long sign32; #include #include #include #else #ifndef Lynx #include #else #include #endif #include #include #endif #endif /* NEEDSOCKETS */ #ifndef BAD_ARPAINET #include #else /* bogus definition of inet_makeaddr() in BSD 4.2 and Ultrix */ extern unsigned long inet_makeaddr(); #endif #ifdef DNETCONN #include #include #endif #ifdef SECURE_RPC #include #include #ifdef X_POSIX_C_SOURCE #define _POSIX_C_SOURCE X_POSIX_C_SOURCE #include #undef _POSIX_C_SOURCE #else #if defined(X_NOT_POSIX) || defined(_POSIX_SOURCE) #include #else #define _POSIX_SOURCE #include #undef _POSIX_SOURCE #endif #endif #ifndef NGROUPS_MAX #include #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(":", list[i].family); break; } printf ("%s", hostname); } else { printf ("", 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 ), 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