mkalias - generate YP version of sendmail aliases
This commit is contained in:
lukem
parent
42aa3a4327
commit
56b7c4c7c7
9
usr.sbin/ypserv/mkalias/Makefile
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9
usr.sbin/ypserv/mkalias/Makefile
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# $OpenBSD: Makefile,v 1.1 1997/07/26 12:12:28 maja Exp $
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PROG= mkalias
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SRCS= mkalias.c ypdb.c
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MAN= mkalias.8
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.PATH: ${.CURDIR}/../common
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CFLAGS+=-I${.CURDIR}/../common
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.include <bsd.prog.mk>
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93
usr.sbin/ypserv/mkalias/mkalias.8
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93
usr.sbin/ypserv/mkalias/mkalias.8
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.\" $OpenBSD: mkalias.8,v 1.1 1997/07/26 12:12:28 maja Exp $
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.\" Copyright (c) 1997 Mats O Jansson <moj@stacken.kth.se>
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by Mats O Jansson
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.\" 4. The name of the author may not be used to endorse or promote products
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.\" derived from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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.\" OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.Dd July 21, 1997
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.Dt MKALIAS 8
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.Os
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.Sh NAME
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.Nm mkalias
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.Nd a YP map convertion program
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.Sh SYNOPSIS
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.Nm mkalias
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.Op Fl v
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.Op Fl e
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.Op Fl E
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.Op Fl d
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.Op Fl u
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.Op Fl n
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.Ar input
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.Op Ar output
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.Sh DESCRIPTION
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.Nm Mkalias
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is used to convert a mail.aliases map to a mail.byaddr map. This is a
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a inverse map of user@host (or user!host) back to alias.
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.Pp
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.Pp
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The options are as follows:
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.Bl -tag -width indent
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.It Fl v
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Verbose mode.
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.It Fl e
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Check host to verify that it exists.
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.It Fl E
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Same as
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.Fl e ,
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but also check for any MX-record.
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.It Fl d
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Assume Domain names are OK. Only useful together with
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.Fl e
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or
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.Fl E .
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.It Fl u
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Assume UUCP names are OK. Only useful together with
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.Fl e
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or
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.Fl E .
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.It Fl n
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Capitalize name. eg mats.o.jansson becomes Mats.O.Jansson.
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.It Ar input
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Use this map as input
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.It Ar output
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Use this map as output. If the output map isn't given don't create database.
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Can be useful together with
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.Fl e
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or
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.Fl E .
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.El
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.Sh BUGS
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.Nm mkalias
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on SunOS 4.1.x seems to have a
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.Fl s .
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Since I don't know what it is supposed to do I havn't implemented it. But it is accepted by the program.
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.Sh SEE ALSO
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.Xr yp 8 ,
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.Xr ypserv 8
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.Sh AUTHOR
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Mats O Jansson <moj@stacken.kth.se>
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367
usr.sbin/ypserv/mkalias/mkalias.c
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367
usr.sbin/ypserv/mkalias/mkalias.c
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/* $OpenBSD: mkalias.c,v 1.3 1997/07/28 22:48:01 deraadt Exp $ */
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/*
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* Copyright (c) 1997 Mats O Jansson <moj@stacken.kth.se>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Mats O Jansson
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef LINT
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static char rcsid[] = "$OpenBSD: mkalias.c,v 1.3 1997/07/28 22:48:01 deraadt Exp $";
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#endif
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#include <ctype.h>
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#include <fcntl.h>
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#include <netdb.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/param.h>
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#include <sys/types.h>
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#include <netinet/in.h>
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#include <arpa/nameser.h>
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#include <resolv.h>
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#include "ypdb.h"
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#include "ypdef.h"
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extern char *__progname; /* from crt0.o */
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void
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split_address(address, len, user, host)
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char *address;
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int len;
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char *user, *host;
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{
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char *c,*s,*r;
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int i = 0;
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if (index(address,'@')) {
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s = user;
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for(c = address; i < len; i++) {
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if (*c == '@') {
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*s = '\0';
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s = host;
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} else {
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*s++ = *c;
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}
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c++;
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}
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*s = '\0';
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}
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if (r = rindex(address,'!')) {
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s = host;
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for(c = address; i < len; i++) {
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if (c == r) {
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*s = '\0';
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s = user;
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} else {
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*s++ = *c;
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}
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c++;
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}
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*s = '\0';
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}
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}
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int
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check_host(address, host, dflag, uflag, Eflag)
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char *address, *host;
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int dflag, uflag, Eflag;
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{
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char answer[PACKETSZ];
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int status;
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if ((dflag && index(address,'@')) ||
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(uflag && index(address,'!'))) return(0);
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if ((_res.options & RES_INIT) == 0)
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res_init();
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status = res_search(host, C_IN, T_AAAA, answer, sizeof(answer));
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if (status == -1)
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status = res_search(host, C_IN, T_A, answer, sizeof(answer));
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if ((status == -1) && Eflag)
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status = res_search(host, C_IN, T_MX, answer, sizeof(answer));
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return(status == -1);
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}
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void
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capitalize(name,len)
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char *name;
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int len;
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{
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char last = ' ';
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char *c;
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int i = 0;
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for(c = name; i < len; i++) {
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if (*c == '.') last = '.';
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c++;
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}
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i = 0;
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if (last == '.') {
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for(c = name; i < len; i++) {
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if (last == '.') {
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*c = toupper(*c);
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}
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last = *c++;
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}
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}
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}
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int
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main (argc,argv)
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int argc;
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char *argv[];
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{
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int usage = 0;
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int eflag = 0;
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int dflag = 0;
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int nflag = 0;
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int sflag = 0;
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int uflag = 0;
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int vflag = 0;
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int Eflag = 0;
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int ch;
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char *input = NULL;
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char *output = NULL;
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DBM *db;
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datum key,val;
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char *slash;
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DBM *new_db = NULL;
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static char mapname[] = "ypdbXXXXXXXXXX";
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char db_mapname[MAXPATHLEN],db_outfile[MAXPATHLEN],
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db_tempname[MAXPATHLEN];
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int status;
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char user[4096],host[4096]; /* XXX: DB bsize = 4096 in ypdb.c */
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char datestr[11];
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char myname[MAXHOSTNAMELEN];
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while ((ch = getopt(argc, argv, "Edensuv")) != -1)
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switch(ch) {
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case 'E':
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eflag++; /* Check hostname */
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Eflag++; /* .. even check MX records */
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break;
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case 'd':
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dflag++; /* Don't check DNS hostname */
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break;
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case 'e':
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eflag++; /* Check hostname */
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break;
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case 'n':
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nflag++; /* Capitalize name parts */
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break;
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case 's':
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sflag++; /* Don't know... */
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break;
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case 'u':
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uflag++; /* Don't check UUCP hostname */
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break;
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case 'v':
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vflag++; /* Verbose */
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break;
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default:
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usage++;
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break;
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}
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if (optind == argc) {
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usage++;
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} else {
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input = argv[optind++];
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if (optind < argc)
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output = argv[optind++];
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if (optind < argc)
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usage++;
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}
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if (usage) {
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fprintf(stderr,
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"usage: %s [-v] [-e|-E [-d] [-u]] [-n] input [output]\n",
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__progname);
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exit(1);
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}
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db = ypdb_open(input, O_RDONLY, 0444);
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if (db == NULL) {
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fprintf(stderr,
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"%s: Unable to open input database %s\n",
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__progname,
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input);
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exit(1);
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}
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if (output != NULL) {
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if (strlen(output) + strlen(YPDB_SUFFIX) > MAXPATHLEN) {
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fprintf(stderr,"%s: %s: file name too long\n",
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__progname, output);
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}
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snprintf(db_outfile, sizeof(db_outfile),
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"%s%s", output, YPDB_SUFFIX);
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slash = strrchr(output, '/');
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if (slash != NULL)
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slash[1] = 0; /* truncate to dir */
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else
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*output = 0; /* elminate */
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/* note: output is now directory where map goes ! */
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if (strlen(output) + strlen(mapname)
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+ strlen(YPDB_SUFFIX) > MAXPATHLEN) {
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fprintf(stderr,"%s: %s: directory name too long\n",
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__progname, output);
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exit(1);
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}
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snprintf(db_tempname, sizeof(db_tempname), "%s%s", output,
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mapname);
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mktemp(db_tempname);
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snprintf(db_mapname, sizeof(db_mapname), "%s%s", db_tempname,
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YPDB_SUFFIX);
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new_db = ypdb_open(db_tempname, O_RDWR|O_CREAT, 0444);
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if (new_db == NULL) {
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fprintf(stderr,
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"%s: Unable to open output database %s\n",
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__progname,
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db_outfile);
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exit(1);
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}
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}
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for (key = ypdb_firstkey(db);
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key.dptr != NULL;
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key = ypdb_nextkey(db)) {
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val = ypdb_fetch(db,key);
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if (val.dptr == NULL) continue; /* No value */
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if ((*key.dptr == '@') && (key.dsize == 1))
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continue; /* Sendmail token */
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if (strncmp(key.dptr, "YP_", 3)==0) /* YP token */
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continue;
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if (index(val.dptr,',')) continue; /* List... */
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if (index(val.dptr,'|')) continue; /* Pipe... */
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if (!((index(val.dptr,'@')) ||
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(index(val.dptr,'!')))) continue; /* Skip local users */
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split_address(val.dptr,val.dsize,user,host);
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if (eflag && check_host(val.dptr, host, dflag, uflag, Eflag)) {
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printf("Invalid host %s in %*.*s:%*.*s\n",
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host,
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key.dsize, key.dsize, key.dptr,
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val.dsize, val.dsize, val.dptr);
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continue;
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}
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if (nflag) {
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capitalize(key.dptr,key.dsize);
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}
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if (new_db != NULL) {
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status = ypdb_store(new_db, val, key, YPDB_INSERT);
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if (status != 0) {
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printf("%s: problem storing %*.*s %*.*s\n",
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__progname,
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val.dsize, val.dsize, val.dptr,
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key.dsize, key.dsize, key.dptr);
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}
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}
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if (vflag) {
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printf("%*.*s --> %*.*s\n",
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val.dsize, val.dsize, val.dptr,
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key.dsize, key.dsize, key.dptr);
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}
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}
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if (new_db != NULL) {
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sprintf(datestr, "%010d", time(NULL));
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key.dptr = YP_LAST_KEY;
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key.dsize = strlen(YP_LAST_KEY);
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val.dptr = datestr;
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val.dsize = strlen(datestr);
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status = ypdb_store(new_db, key, val, YPDB_INSERT);
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if (status != 0) {
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printf("%s: problem storing %*.*s %*.*s\n",
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__progname,
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key.dsize, key.dsize, key.dptr,
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val.dsize, val.dsize, val.dptr);
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}
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}
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if (new_db != NULL) {
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gethostname(myname, sizeof(myname) - 1);
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key.dptr = YP_MASTER_KEY;
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key.dsize = strlen(YP_MASTER_KEY);
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val.dptr = myname;
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val.dsize = strlen(myname);
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status = ypdb_store(new_db, key, val, YPDB_INSERT);
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if (status != 0) {
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printf("%s: problem storing %*.*s %*.*s\n",
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__progname,
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key.dsize, key.dsize, key.dptr,
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val.dsize, val.dsize, val.dptr);
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}
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}
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ypdb_close(db);
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if (new_db != NULL) {
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ypdb_close(new_db);
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if (rename(db_mapname,db_outfile) < 0) {
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perror("rename");
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fprintf(stderr,"rename %s -> %s failed!\n", db_mapname,
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db_outfile);
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exit(1);
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}
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}
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return(0);
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}
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