Add remote tape capabilities.
This commit is contained in:
scottr
parent
3020e66dd5
commit
41c2cff5ab
11
bin/mt/mt.1
11
bin/mt/mt.1
@ -1,4 +1,4 @@
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.\" $NetBSD: mt.1,v 1.6 1995/08/22 19:36:00 jtc Exp $
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.\" $NetBSD: mt.1,v 1.7 1996/03/05 20:39:42 scottr Exp $
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.\"
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.\" Copyright (c) 1981, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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@ -56,6 +56,15 @@ Note
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that
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.Ar tapename
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must reference a raw (not block) tape device.
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If
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.Ar tapename
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is of the form
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.Dq host:tapename ,
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or
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.Dq user@host:tapename ,
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.Nm mt
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writes to the named tape device on the remote host using
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.Xr rmt 8 .
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.Pp
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The available commands are listed below. Only as many
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characters as are required to uniquely identify a command
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41
bin/mt/mt.c
41
bin/mt/mt.c
@ -1,4 +1,4 @@
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/* $NetBSD: mt.c,v 1.8 1995/09/28 07:18:20 tls Exp $ */
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/* $NetBSD: mt.c,v 1.9 1996/03/05 20:39:32 scottr Exp $ */
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/*
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* Copyright (c) 1980, 1993
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@ -43,7 +43,7 @@ static char copyright[] =
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#if 0
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static char sccsid[] = "@(#)mt.c 8.2 (Berkeley) 6/6/93";
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#else
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static char rcsid[] = "$NetBSD: mt.c,v 1.8 1995/09/28 07:18:20 tls Exp $";
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static char rcsid[] = "$NetBSD: mt.c,v 1.9 1996/03/05 20:39:32 scottr Exp $";
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#endif
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#endif /* not lint */
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@ -61,6 +61,8 @@ static char rcsid[] = "$NetBSD: mt.c,v 1.8 1995/09/28 07:18:20 tls Exp $";
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#include <ctype.h>
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#include <string.h>
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#include "mt.h"
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struct commands {
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char *c_name;
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int c_code;
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@ -86,6 +88,8 @@ void printreg __P((char *, u_int, char *));
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void status __P((struct mtget *));
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void usage __P((void));
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char *host = NULL; /* remote host (if any) */
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int
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main(argc, argv)
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int argc;
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@ -116,6 +120,15 @@ main(argc, argv)
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if (argc < 1 || argc > 2)
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usage();
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if (strchr(tape, ':')) {
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host = tape;
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tape = strchr(host, ':');
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*tape++ = '\0';
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if (rmthost(host) == 0)
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exit(X_ABORT);
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}
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(void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
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len = strlen(p = *argv++);
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for (comp = com;; comp++) {
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if (comp->c_name == NULL)
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@ -123,7 +136,8 @@ main(argc, argv)
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if (strncmp(p, comp->c_name, len) == 0)
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break;
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}
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if ((mtfd = open(tape, comp->c_ronly ? O_RDONLY : O_RDWR)) < 0)
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if ((mtfd = host ? rmtopen(tape, 2) :
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open(tape, O_WRONLY|O_CREAT, 0666)) < 0)
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err(2, "%s", tape);
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if (comp->c_code != MTNOP) {
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mt_com.mt_op = comp->c_code;
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@ -134,14 +148,23 @@ main(argc, argv)
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}
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else
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mt_com.mt_count = 1;
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if (ioctl(mtfd, MTIOCTOP, &mt_com) < 0)
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if ((host ? rmtioctl(mt_com.mt_op, mt_com.mt_count) :
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ioctl(mtfd, MTIOCTOP, &mt_com)) < 0)
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err(2, "%s: %s", tape, comp->c_name);
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} else {
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if (ioctl(mtfd, MTIOCGET, &mt_status) < 0)
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err(2, "ioctl MTIOCGET");
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status(&mt_status);
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if (host) {
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status(rmtstatus());
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} else {
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if (ioctl(mtfd, MTIOCGET, &mt_status) < 0)
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err(2, "ioctl MTIOCGET");
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status(&mt_status);
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}
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}
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exit (0);
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if (host)
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rmtclose();
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exit(X_FINOK);
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/* NOTREACHED */
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}
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@ -232,5 +255,5 @@ void
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usage()
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{
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(void)fprintf(stderr, "usage: mt [-f device] command [ count ]\n");
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exit(1);
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exit(X_USAGE);
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}
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51
bin/mt/mt.h
Normal file
51
bin/mt/mt.h
Normal file
@ -0,0 +1,51 @@
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/* $NetBSD: mt.h,v 1.1 1996/03/05 20:39:36 scottr Exp $ */
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/*-
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. 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 the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY 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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/* rmt routines */
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void rmtclose __P((void));
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int rmthost __P((char *host));
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int rmtopen __P((char *tape, int mode));
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int rmtioctl __P((int command, int count));
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struct mtget *rmtstatus __P((void));
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void interrupt __P((int signo)); /* in case operator bangs on console */
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/*
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* Exit status codes
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*/
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#define X_FINOK 0 /* normal exit */
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#define X_USAGE 1 /* invalid usage, no action performed */
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#define X_REWRITE 2 /* restart writing from the check point */
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#define X_ABORT 3 /* abort dump; don't attempt checkpointing */
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304
bin/mt/mtrmt.c
Normal file
304
bin/mt/mtrmt.c
Normal file
@ -0,0 +1,304 @@
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/* $NetBSD: mtrmt.c,v 1.1 1996/03/05 20:39:38 scottr Exp $ */
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/*-
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. 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 the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY 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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/*
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* This was unceremoniously ripped out of usr.sbin/dump/dumprmt.c:
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*
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* static char sccsid[] = "@(#)dumprmt.c 8.1 (Berkeley) 6/5/93";
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*
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*/
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#include <sys/param.h>
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#include <sys/mtio.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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#ifdef sunos
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#include <sys/vnode.h>
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#include <ufs/inode.h>
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#else
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#include <ufs/ufs/dinode.h>
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#endif
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <protocols/dumprestore.h>
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#include <ctype.h>
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#include <err.h>
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#include <netdb.h>
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#include <pwd.h>
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#include <signal.h>
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#include <stdio.h>
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#ifdef __STDC__
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#endif
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#include "pathnames.h"
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#include "mt.h"
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#define TS_CLOSED 0
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#define TS_OPEN 1
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static int rmtstate = TS_CLOSED;
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static int rmtape;
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static char *rmtpeer;
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static int okname __P((char *));
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static int rmtcall __P((char *, char *));
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static void rmtconnaborted __P((/* int, int */));
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static int rmtgetb __P((void));
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static void rmtgetconn __P((void));
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static void rmtgets __P((char *, int));
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static int rmtreply __P((char *));
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int
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rmthost(host)
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char *host;
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{
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rmtpeer = malloc(strlen(host) + 1);
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if (rmtpeer)
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strcpy(rmtpeer, host);
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else
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rmtpeer = host;
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signal(SIGPIPE, rmtconnaborted);
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rmtgetconn();
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if (rmtape < 0)
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return (0);
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return (1);
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}
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static void
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rmtconnaborted()
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{
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errx(1, "Lost connection to remote host.");
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}
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void
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rmtgetconn()
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{
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register char *cp;
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static struct servent *sp = NULL;
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static struct passwd *pwd = NULL;
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#ifdef notdef
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static int on = 1;
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#endif
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char *tuser;
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int size;
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int maxseg;
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if (sp == NULL) {
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sp = getservbyname("shell", "tcp");
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if (sp == NULL)
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errx(1, "shell/tcp: unknown service");
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pwd = getpwuid(getuid());
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if (pwd == NULL)
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errx(1, "who are you?");
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}
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if ((cp = strchr(rmtpeer, '@')) != NULL) {
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tuser = rmtpeer;
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*cp = '\0';
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if (!okname(tuser))
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exit(1);
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rmtpeer = ++cp;
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} else
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tuser = pwd->pw_name;
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rmtape = rcmd(&rmtpeer, (u_short)sp->s_port, pwd->pw_name, tuser,
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_PATH_RMT, (int *)0);
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size = TP_BSIZE;
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if (size > 60 * 1024) /* XXX */
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size = 60 * 1024;
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/* Leave some space for rmt request/response protocol */
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size += 2 * 1024;
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while (size > TP_BSIZE &&
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setsockopt(rmtape, SOL_SOCKET, SO_SNDBUF, &size, sizeof (size)) < 0)
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size -= TP_BSIZE;
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(void)setsockopt(rmtape, SOL_SOCKET, SO_RCVBUF, &size, sizeof (size));
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maxseg = 1024;
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if (setsockopt(rmtape, IPPROTO_TCP, TCP_MAXSEG,
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&maxseg, sizeof (maxseg)) < 0)
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perror("TCP_MAXSEG setsockopt");
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#ifdef notdef
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if (setsockopt(rmtape, IPPROTO_TCP, TCP_NODELAY, &on, sizeof (on)) < 0)
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perror("TCP_NODELAY setsockopt");
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#endif
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}
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static int
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okname(cp0)
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char *cp0;
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{
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register char *cp;
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register int c;
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for (cp = cp0; *cp; cp++) {
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c = *cp;
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if (!isascii(c) || !(isalnum(c) || c == '_' || c == '-')) {
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warnx("invalid user name: %s", cp0);
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return (0);
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}
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}
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return (1);
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}
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int
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rmtopen(tape, mode)
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char *tape;
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int mode;
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{
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char buf[256];
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(void)sprintf(buf, "O%s\n%d\n", tape, mode);
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rmtstate = TS_OPEN;
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return (rmtcall(tape, buf));
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}
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void
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rmtclose()
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{
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if (rmtstate != TS_OPEN)
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return;
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rmtcall("close", "C\n");
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rmtstate = TS_CLOSED;
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}
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struct mtget mts;
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struct mtget *
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rmtstatus()
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{
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register int i;
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register char *cp;
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if (rmtstate != TS_OPEN)
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return (NULL);
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rmtcall("status", "S\n");
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for (i = 0, cp = (char *)&mts; i < sizeof(mts); i++)
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*cp++ = rmtgetb();
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return (&mts);
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}
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int
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rmtioctl(cmd, count)
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int cmd, count;
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{
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char buf[256];
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if (count < 0)
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return (-1);
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(void)sprintf(buf, "I%d\n%d\n", cmd, count);
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return (rmtcall("ioctl", buf));
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}
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static int
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rmtcall(cmd, buf)
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char *cmd, *buf;
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{
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if (write(rmtape, buf, strlen(buf)) != strlen(buf))
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rmtconnaborted();
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return (rmtreply(cmd));
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}
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static int
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rmtreply(cmd)
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char *cmd;
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{
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register char *cp;
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char code[30], emsg[BUFSIZ];
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rmtgets(code, sizeof (code));
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if (*code == 'E' || *code == 'F') {
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rmtgets(emsg, sizeof (emsg));
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warnx("%s: %s", cmd, emsg);
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if (*code == 'F') {
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rmtstate = TS_CLOSED;
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return (-1);
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}
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return (-1);
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}
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if (*code != 'A') {
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/* Kill trailing newline */
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cp = code + strlen(code);
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if (cp > code && *--cp == '\n')
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*cp = '\0';
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warnx("Protocol to remote tape server botched (code \"%s\").\n",
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code);
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rmtconnaborted();
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}
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return (atoi(code + 1));
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}
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int
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rmtgetb()
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{
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char c;
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if (read(rmtape, &c, 1) != 1)
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rmtconnaborted();
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return (c);
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}
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/* Get a line (guaranteed to have a trailing newline). */
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void
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rmtgets(line, len)
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char *line;
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int len;
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{
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register char *cp = line;
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while (len > 1) {
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*cp = rmtgetb();
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if (*cp == '\n') {
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cp[1] = '\0';
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return;
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}
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cp++;
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len--;
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}
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*cp = '\0';
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warnx("Protocol to remote tape server botched.\n");
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warnx("(rmtgets got \"%s\").\n", line);
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rmtconnaborted();
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}
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38
bin/mt/pathnames.h
Normal file
38
bin/mt/pathnames.h
Normal file
@ -0,0 +1,38 @@
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/* $NetBSD: pathnames.h,v 1.1 1996/03/05 20:39:40 scottr Exp $ */
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/*
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* Copyright (c) 1989, 1993
|
||||
* The Regents of the University of California. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <paths.h>
|
||||
|
||||
#define _PATH_RMT "/etc/rmt"
|
||||
Loading…
Reference in New Issue
Block a user