xref: /freebsd/sbin/dump/dumprmt.c (revision a37c38b8d80f9fae9711e50f446e4edc85711b7a)
18fae3551SRodney W. Grimes /*-
28fae3551SRodney W. Grimes  * Copyright (c) 1980, 1993
38fae3551SRodney W. Grimes  *	The Regents of the University of California.  All rights reserved.
48fae3551SRodney W. Grimes  *
58fae3551SRodney W. Grimes  * Redistribution and use in source and binary forms, with or without
68fae3551SRodney W. Grimes  * modification, are permitted provided that the following conditions
78fae3551SRodney W. Grimes  * are met:
88fae3551SRodney W. Grimes  * 1. Redistributions of source code must retain the above copyright
98fae3551SRodney W. Grimes  *    notice, this list of conditions and the following disclaimer.
108fae3551SRodney W. Grimes  * 2. Redistributions in binary form must reproduce the above copyright
118fae3551SRodney W. Grimes  *    notice, this list of conditions and the following disclaimer in the
128fae3551SRodney W. Grimes  *    documentation and/or other materials provided with the distribution.
138fae3551SRodney W. Grimes  * 3. All advertising materials mentioning features or use of this software
148fae3551SRodney W. Grimes  *    must display the following acknowledgement:
158fae3551SRodney W. Grimes  *	This product includes software developed by the University of
168fae3551SRodney W. Grimes  *	California, Berkeley and its contributors.
178fae3551SRodney W. Grimes  * 4. Neither the name of the University nor the names of its contributors
188fae3551SRodney W. Grimes  *    may be used to endorse or promote products derived from this software
198fae3551SRodney W. Grimes  *    without specific prior written permission.
208fae3551SRodney W. Grimes  *
218fae3551SRodney W. Grimes  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
228fae3551SRodney W. Grimes  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
238fae3551SRodney W. Grimes  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
248fae3551SRodney W. Grimes  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
258fae3551SRodney W. Grimes  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
268fae3551SRodney W. Grimes  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
278fae3551SRodney W. Grimes  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
288fae3551SRodney W. Grimes  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
298fae3551SRodney W. Grimes  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
308fae3551SRodney W. Grimes  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
318fae3551SRodney W. Grimes  * SUCH DAMAGE.
328fae3551SRodney W. Grimes  */
338fae3551SRodney W. Grimes 
348fae3551SRodney W. Grimes #ifndef lint
35a37c38b8SPeter Wemm static char sccsid[] = "@(#)dumprmt.c	8.3 (Berkeley) 4/28/95";
368fae3551SRodney W. Grimes #endif /* not lint */
378fae3551SRodney W. Grimes 
388fae3551SRodney W. Grimes #include <sys/param.h>
398fae3551SRodney W. Grimes #include <sys/mtio.h>
408fae3551SRodney W. Grimes #include <sys/ioctl.h>
418fae3551SRodney W. Grimes #include <sys/socket.h>
428fae3551SRodney W. Grimes #include <sys/time.h>
438fae3551SRodney W. Grimes #ifdef sunos
448fae3551SRodney W. Grimes #include <sys/vnode.h>
458fae3551SRodney W. Grimes 
468fae3551SRodney W. Grimes #include <ufs/inode.h>
478fae3551SRodney W. Grimes #else
488fae3551SRodney W. Grimes #include <ufs/ufs/dinode.h>
498fae3551SRodney W. Grimes #endif
508fae3551SRodney W. Grimes 
518fae3551SRodney W. Grimes #include <netinet/in.h>
52d71ba03dSBill Fenner #include <netinet/in_systm.h>
53d71ba03dSBill Fenner #include <netinet/ip.h>
548fae3551SRodney W. Grimes 
558fae3551SRodney W. Grimes #include <protocols/dumprestore.h>
568fae3551SRodney W. Grimes 
578fae3551SRodney W. Grimes #include <ctype.h>
58a37c38b8SPeter Wemm #include <err.h>
598fae3551SRodney W. Grimes #include <netdb.h>
608fae3551SRodney W. Grimes #include <pwd.h>
618fae3551SRodney W. Grimes #include <signal.h>
628fae3551SRodney W. Grimes #include <stdio.h>
638fae3551SRodney W. Grimes #ifdef __STDC__
648fae3551SRodney W. Grimes #include <stdlib.h>
658fae3551SRodney W. Grimes #include <string.h>
668fae3551SRodney W. Grimes #include <unistd.h>
678fae3551SRodney W. Grimes #endif
688fae3551SRodney W. Grimes 
698fae3551SRodney W. Grimes #include "pathnames.h"
708fae3551SRodney W. Grimes #include "dump.h"
718fae3551SRodney W. Grimes 
728fae3551SRodney W. Grimes #define	TS_CLOSED	0
738fae3551SRodney W. Grimes #define	TS_OPEN		1
748fae3551SRodney W. Grimes 
758fae3551SRodney W. Grimes static	int rmtstate = TS_CLOSED;
768fae3551SRodney W. Grimes static	int rmtape;
778fae3551SRodney W. Grimes static	char *rmtpeer;
788fae3551SRodney W. Grimes 
798fae3551SRodney W. Grimes static	int okname __P((char *));
808fae3551SRodney W. Grimes static	int rmtcall __P((char *, char *));
818fae3551SRodney W. Grimes static	void rmtconnaborted __P((/* int, int */));
828fae3551SRodney W. Grimes static	int rmtgetb __P((void));
838fae3551SRodney W. Grimes static	void rmtgetconn __P((void));
848fae3551SRodney W. Grimes static	void rmtgets __P((char *, int));
858fae3551SRodney W. Grimes static	int rmtreply __P((char *));
868fae3551SRodney W. Grimes 
874aad1224SBill Fenner static	int errfd = -1;
884aad1224SBill Fenner 
898fae3551SRodney W. Grimes extern	int ntrec;		/* blocking factor on tape */
908fae3551SRodney W. Grimes 
918fae3551SRodney W. Grimes int
928fae3551SRodney W. Grimes rmthost(host)
938fae3551SRodney W. Grimes 	char *host;
948fae3551SRodney W. Grimes {
958fae3551SRodney W. Grimes 
968fae3551SRodney W. Grimes 	rmtpeer = malloc(strlen(host) + 1);
978fae3551SRodney W. Grimes 	if (rmtpeer)
988fae3551SRodney W. Grimes 		strcpy(rmtpeer, host);
998fae3551SRodney W. Grimes 	else
1008fae3551SRodney W. Grimes 		rmtpeer = host;
1018fae3551SRodney W. Grimes 	signal(SIGPIPE, rmtconnaborted);
1028fae3551SRodney W. Grimes 	rmtgetconn();
1038fae3551SRodney W. Grimes 	if (rmtape < 0)
1048fae3551SRodney W. Grimes 		return (0);
1058fae3551SRodney W. Grimes 	return (1);
1068fae3551SRodney W. Grimes }
1078fae3551SRodney W. Grimes 
1088fae3551SRodney W. Grimes static void
1098fae3551SRodney W. Grimes rmtconnaborted()
1108fae3551SRodney W. Grimes {
1114aad1224SBill Fenner 	msg("Lost connection to remote host.\n");
1124aad1224SBill Fenner 	if (errfd != -1) {
1134aad1224SBill Fenner 		fd_set r;
1144aad1224SBill Fenner 		struct timeval t;
1158fae3551SRodney W. Grimes 
1164aad1224SBill Fenner 		FD_ZERO(&r);
1174aad1224SBill Fenner 		FD_SET(errfd, &r);
1184aad1224SBill Fenner 		t.tv_sec = 0;
1194aad1224SBill Fenner 		t.tv_usec = 0;
1204aad1224SBill Fenner 		if (select(errfd + 1, &r, NULL, NULL, &t)) {
1214aad1224SBill Fenner 			int i;
1224aad1224SBill Fenner 			char buf[2048];
1234aad1224SBill Fenner 
1244aad1224SBill Fenner 			if ((i = read(errfd, buf, sizeof(buf) - 1)) > 0) {
1254aad1224SBill Fenner 				buf[i] = '\0';
1264aad1224SBill Fenner 				msg("on %s: %s%s", rmtpeer, buf,
1274aad1224SBill Fenner 					buf[i - 1] == '\n' ? "" : "\n");
1284aad1224SBill Fenner 			}
1294aad1224SBill Fenner 		}
1304aad1224SBill Fenner 	}
1314aad1224SBill Fenner 
1324aad1224SBill Fenner 	exit(X_ABORT);
1338fae3551SRodney W. Grimes }
1348fae3551SRodney W. Grimes 
1358fae3551SRodney W. Grimes void
1368fae3551SRodney W. Grimes rmtgetconn()
1378fae3551SRodney W. Grimes {
1388fae3551SRodney W. Grimes 	register char *cp;
139019420a5SJoerg Wunsch 	register const char *rmt;
1408fae3551SRodney W. Grimes 	static struct servent *sp = NULL;
1418fae3551SRodney W. Grimes 	static struct passwd *pwd = NULL;
1428fae3551SRodney W. Grimes #ifdef notdef
1438fae3551SRodney W. Grimes 	static int on = 1;
1448fae3551SRodney W. Grimes #endif
1458fae3551SRodney W. Grimes 	char *tuser;
1468fae3551SRodney W. Grimes 	int size;
147d71ba03dSBill Fenner 	int throughput;
1488fae3551SRodney W. Grimes 
1498fae3551SRodney W. Grimes 	if (sp == NULL) {
1508fae3551SRodney W. Grimes 		sp = getservbyname("shell", "tcp");
1518fae3551SRodney W. Grimes 		if (sp == NULL) {
1524aad1224SBill Fenner 			msg("shell/tcp: unknown service\n");
1534aad1224SBill Fenner 			exit(X_ABORT);
1548fae3551SRodney W. Grimes 		}
1558fae3551SRodney W. Grimes 		pwd = getpwuid(getuid());
1568fae3551SRodney W. Grimes 		if (pwd == NULL) {
1574aad1224SBill Fenner 			msg("who are you?\n");
1584aad1224SBill Fenner 			exit(X_ABORT);
1598fae3551SRodney W. Grimes 		}
1608fae3551SRodney W. Grimes 	}
161a37c38b8SPeter Wemm 	if ((cp = strchr(rmtpeer, '@')) != NULL) {
1628fae3551SRodney W. Grimes 		tuser = rmtpeer;
1638fae3551SRodney W. Grimes 		*cp = '\0';
1648fae3551SRodney W. Grimes 		if (!okname(tuser))
1654aad1224SBill Fenner 			exit(X_ABORT);
1668fae3551SRodney W. Grimes 		rmtpeer = ++cp;
1678fae3551SRodney W. Grimes 	} else
1688fae3551SRodney W. Grimes 		tuser = pwd->pw_name;
169019420a5SJoerg Wunsch 	if ((rmt = getenv("RMT")) == NULL)
170019420a5SJoerg Wunsch 		rmt = _PATH_RMT;
1714aad1224SBill Fenner 	msg("");
1728fae3551SRodney W. Grimes 	rmtape = rcmd(&rmtpeer, (u_short)sp->s_port, pwd->pw_name, tuser,
1734aad1224SBill Fenner 	    rmt, &errfd);
1744aad1224SBill Fenner 	if (rmtape < 0) {
1754aad1224SBill Fenner 		msg("login to %s as %s failed.\n", rmtpeer, tuser);
176d71ba03dSBill Fenner 		return;
1774aad1224SBill Fenner 	}
178b11ecdd6SBill Fenner 	(void)fprintf(stderr, "Connection to %s established.\n", rmtpeer);
1798fae3551SRodney W. Grimes 	size = ntrec * TP_BSIZE;
1808fae3551SRodney W. Grimes 	if (size > 60 * 1024)		/* XXX */
1818fae3551SRodney W. Grimes 		size = 60 * 1024;
1828fae3551SRodney W. Grimes 	/* Leave some space for rmt request/response protocol */
1838fae3551SRodney W. Grimes 	size += 2 * 1024;
1848fae3551SRodney W. Grimes 	while (size > TP_BSIZE &&
1858fae3551SRodney W. Grimes 	    setsockopt(rmtape, SOL_SOCKET, SO_SNDBUF, &size, sizeof (size)) < 0)
1868fae3551SRodney W. Grimes 		    size -= TP_BSIZE;
1878fae3551SRodney W. Grimes 	(void)setsockopt(rmtape, SOL_SOCKET, SO_RCVBUF, &size, sizeof (size));
188d71ba03dSBill Fenner 	throughput = IPTOS_THROUGHPUT;
189d71ba03dSBill Fenner 	if (setsockopt(rmtape, IPPROTO_IP, IP_TOS,
190d71ba03dSBill Fenner 	    &throughput, sizeof(throughput)) < 0)
191d71ba03dSBill Fenner 		perror("IP_TOS:IPTOS_THROUGHPUT setsockopt");
1928fae3551SRodney W. Grimes 
1938fae3551SRodney W. Grimes #ifdef notdef
1948fae3551SRodney W. Grimes 	if (setsockopt(rmtape, IPPROTO_TCP, TCP_NODELAY, &on, sizeof (on)) < 0)
1958fae3551SRodney W. Grimes 		perror("TCP_NODELAY setsockopt");
1968fae3551SRodney W. Grimes #endif
1978fae3551SRodney W. Grimes }
1988fae3551SRodney W. Grimes 
1998fae3551SRodney W. Grimes static int
2008fae3551SRodney W. Grimes okname(cp0)
2018fae3551SRodney W. Grimes 	char *cp0;
2028fae3551SRodney W. Grimes {
2038fae3551SRodney W. Grimes 	register char *cp;
2048fae3551SRodney W. Grimes 	register int c;
2058fae3551SRodney W. Grimes 
2068fae3551SRodney W. Grimes 	for (cp = cp0; *cp; cp++) {
2078fae3551SRodney W. Grimes 		c = *cp;
2088fae3551SRodney W. Grimes 		if (!isascii(c) || !(isalnum(c) || c == '_' || c == '-')) {
2094aad1224SBill Fenner 			msg("invalid user name %s\n", cp0);
2108fae3551SRodney W. Grimes 			return (0);
2118fae3551SRodney W. Grimes 		}
2128fae3551SRodney W. Grimes 	}
2138fae3551SRodney W. Grimes 	return (1);
2148fae3551SRodney W. Grimes }
2158fae3551SRodney W. Grimes 
2168fae3551SRodney W. Grimes int
2178fae3551SRodney W. Grimes rmtopen(tape, mode)
2188fae3551SRodney W. Grimes 	char *tape;
2198fae3551SRodney W. Grimes 	int mode;
2208fae3551SRodney W. Grimes {
2218fae3551SRodney W. Grimes 	char buf[256];
2228fae3551SRodney W. Grimes 
223f5dcc2f1SWarner Losh 	(void)snprintf(buf, sizeof (buf), "O%.226s\n%d\n", tape, mode);
2248fae3551SRodney W. Grimes 	rmtstate = TS_OPEN;
2258fae3551SRodney W. Grimes 	return (rmtcall(tape, buf));
2268fae3551SRodney W. Grimes }
2278fae3551SRodney W. Grimes 
2288fae3551SRodney W. Grimes void
2298fae3551SRodney W. Grimes rmtclose()
2308fae3551SRodney W. Grimes {
2318fae3551SRodney W. Grimes 
2328fae3551SRodney W. Grimes 	if (rmtstate != TS_OPEN)
2338fae3551SRodney W. Grimes 		return;
2348fae3551SRodney W. Grimes 	rmtcall("close", "C\n");
2358fae3551SRodney W. Grimes 	rmtstate = TS_CLOSED;
2368fae3551SRodney W. Grimes }
2378fae3551SRodney W. Grimes 
2388fae3551SRodney W. Grimes int
2398fae3551SRodney W. Grimes rmtread(buf, count)
2408fae3551SRodney W. Grimes 	char *buf;
2418fae3551SRodney W. Grimes 	int count;
2428fae3551SRodney W. Grimes {
2438fae3551SRodney W. Grimes 	char line[30];
2448fae3551SRodney W. Grimes 	int n, i, cc;
2458fae3551SRodney W. Grimes 	extern errno;
2468fae3551SRodney W. Grimes 
247f5dcc2f1SWarner Losh 	(void)snprintf(line, sizeof (line), "R%d\n", count);
2488fae3551SRodney W. Grimes 	n = rmtcall("read", line);
2498fae3551SRodney W. Grimes 	if (n < 0) {
2508fae3551SRodney W. Grimes 		errno = n;
2518fae3551SRodney W. Grimes 		return (-1);
2528fae3551SRodney W. Grimes 	}
2538fae3551SRodney W. Grimes 	for (i = 0; i < n; i += cc) {
2548fae3551SRodney W. Grimes 		cc = read(rmtape, buf+i, n - i);
2558fae3551SRodney W. Grimes 		if (cc <= 0) {
2568fae3551SRodney W. Grimes 			rmtconnaborted();
2578fae3551SRodney W. Grimes 		}
2588fae3551SRodney W. Grimes 	}
2598fae3551SRodney W. Grimes 	return (n);
2608fae3551SRodney W. Grimes }
2618fae3551SRodney W. Grimes 
2628fae3551SRodney W. Grimes int
2638fae3551SRodney W. Grimes rmtwrite(buf, count)
2648fae3551SRodney W. Grimes 	char *buf;
2658fae3551SRodney W. Grimes 	int count;
2668fae3551SRodney W. Grimes {
2678fae3551SRodney W. Grimes 	char line[30];
2688fae3551SRodney W. Grimes 
269f5dcc2f1SWarner Losh 	(void)snprintf(line, sizeof (line), "W%d\n", count);
2708fae3551SRodney W. Grimes 	write(rmtape, line, strlen(line));
2718fae3551SRodney W. Grimes 	write(rmtape, buf, count);
2728fae3551SRodney W. Grimes 	return (rmtreply("write"));
2738fae3551SRodney W. Grimes }
2748fae3551SRodney W. Grimes 
2758fae3551SRodney W. Grimes void
2768fae3551SRodney W. Grimes rmtwrite0(count)
2778fae3551SRodney W. Grimes 	int count;
2788fae3551SRodney W. Grimes {
2798fae3551SRodney W. Grimes 	char line[30];
2808fae3551SRodney W. Grimes 
281f5dcc2f1SWarner Losh 	(void)snprintf(line, sizeof (line), "W%d\n", count);
2828fae3551SRodney W. Grimes 	write(rmtape, line, strlen(line));
2838fae3551SRodney W. Grimes }
2848fae3551SRodney W. Grimes 
2858fae3551SRodney W. Grimes void
2868fae3551SRodney W. Grimes rmtwrite1(buf, count)
2878fae3551SRodney W. Grimes 	char *buf;
2888fae3551SRodney W. Grimes 	int count;
2898fae3551SRodney W. Grimes {
2908fae3551SRodney W. Grimes 
2918fae3551SRodney W. Grimes 	write(rmtape, buf, count);
2928fae3551SRodney W. Grimes }
2938fae3551SRodney W. Grimes 
2948fae3551SRodney W. Grimes int
2958fae3551SRodney W. Grimes rmtwrite2()
2968fae3551SRodney W. Grimes {
2978fae3551SRodney W. Grimes 
2988fae3551SRodney W. Grimes 	return (rmtreply("write"));
2998fae3551SRodney W. Grimes }
3008fae3551SRodney W. Grimes 
3018fae3551SRodney W. Grimes int
3028fae3551SRodney W. Grimes rmtseek(offset, pos)
3038fae3551SRodney W. Grimes 	int offset, pos;
3048fae3551SRodney W. Grimes {
3058fae3551SRodney W. Grimes 	char line[80];
3068fae3551SRodney W. Grimes 
307f5dcc2f1SWarner Losh 	(void)snprintf(line, sizeof (line), "L%d\n%d\n", offset, pos);
3088fae3551SRodney W. Grimes 	return (rmtcall("seek", line));
3098fae3551SRodney W. Grimes }
3108fae3551SRodney W. Grimes 
3118fae3551SRodney W. Grimes struct	mtget mts;
3128fae3551SRodney W. Grimes 
3138fae3551SRodney W. Grimes struct mtget *
3148fae3551SRodney W. Grimes rmtstatus()
3158fae3551SRodney W. Grimes {
3168fae3551SRodney W. Grimes 	register int i;
3178fae3551SRodney W. Grimes 	register char *cp;
3188fae3551SRodney W. Grimes 
3198fae3551SRodney W. Grimes 	if (rmtstate != TS_OPEN)
3208fae3551SRodney W. Grimes 		return (NULL);
3218fae3551SRodney W. Grimes 	rmtcall("status", "S\n");
3228fae3551SRodney W. Grimes 	for (i = 0, cp = (char *)&mts; i < sizeof(mts); i++)
3238fae3551SRodney W. Grimes 		*cp++ = rmtgetb();
3248fae3551SRodney W. Grimes 	return (&mts);
3258fae3551SRodney W. Grimes }
3268fae3551SRodney W. Grimes 
3278fae3551SRodney W. Grimes int
3288fae3551SRodney W. Grimes rmtioctl(cmd, count)
3298fae3551SRodney W. Grimes 	int cmd, count;
3308fae3551SRodney W. Grimes {
3318fae3551SRodney W. Grimes 	char buf[256];
3328fae3551SRodney W. Grimes 
3338fae3551SRodney W. Grimes 	if (count < 0)
3348fae3551SRodney W. Grimes 		return (-1);
335f5dcc2f1SWarner Losh 	(void)snprintf(buf, sizeof (buf), "I%d\n%d\n", cmd, count);
3368fae3551SRodney W. Grimes 	return (rmtcall("ioctl", buf));
3378fae3551SRodney W. Grimes }
3388fae3551SRodney W. Grimes 
3398fae3551SRodney W. Grimes static int
3408fae3551SRodney W. Grimes rmtcall(cmd, buf)
3418fae3551SRodney W. Grimes 	char *cmd, *buf;
3428fae3551SRodney W. Grimes {
3438fae3551SRodney W. Grimes 
3448fae3551SRodney W. Grimes 	if (write(rmtape, buf, strlen(buf)) != strlen(buf))
3458fae3551SRodney W. Grimes 		rmtconnaborted();
3468fae3551SRodney W. Grimes 	return (rmtreply(cmd));
3478fae3551SRodney W. Grimes }
3488fae3551SRodney W. Grimes 
3498fae3551SRodney W. Grimes static int
3508fae3551SRodney W. Grimes rmtreply(cmd)
3518fae3551SRodney W. Grimes 	char *cmd;
3528fae3551SRodney W. Grimes {
3538fae3551SRodney W. Grimes 	register char *cp;
3548fae3551SRodney W. Grimes 	char code[30], emsg[BUFSIZ];
3558fae3551SRodney W. Grimes 
3568fae3551SRodney W. Grimes 	rmtgets(code, sizeof (code));
3578fae3551SRodney W. Grimes 	if (*code == 'E' || *code == 'F') {
3588fae3551SRodney W. Grimes 		rmtgets(emsg, sizeof (emsg));
3598fae3551SRodney W. Grimes 		msg("%s: %s", cmd, emsg);
3608fae3551SRodney W. Grimes 		if (*code == 'F') {
3618fae3551SRodney W. Grimes 			rmtstate = TS_CLOSED;
3628fae3551SRodney W. Grimes 			return (-1);
3638fae3551SRodney W. Grimes 		}
3648fae3551SRodney W. Grimes 		return (-1);
3658fae3551SRodney W. Grimes 	}
3668fae3551SRodney W. Grimes 	if (*code != 'A') {
3678fae3551SRodney W. Grimes 		/* Kill trailing newline */
3688fae3551SRodney W. Grimes 		cp = code + strlen(code);
3698fae3551SRodney W. Grimes 		if (cp > code && *--cp == '\n')
3708fae3551SRodney W. Grimes 			*cp = '\0';
3718fae3551SRodney W. Grimes 
3728fae3551SRodney W. Grimes 		msg("Protocol to remote tape server botched (code \"%s\").\n",
3738fae3551SRodney W. Grimes 		    code);
3748fae3551SRodney W. Grimes 		rmtconnaborted();
3758fae3551SRodney W. Grimes 	}
3768fae3551SRodney W. Grimes 	return (atoi(code + 1));
3778fae3551SRodney W. Grimes }
3788fae3551SRodney W. Grimes 
3798fae3551SRodney W. Grimes int
3808fae3551SRodney W. Grimes rmtgetb()
3818fae3551SRodney W. Grimes {
3828fae3551SRodney W. Grimes 	char c;
3838fae3551SRodney W. Grimes 
3848fae3551SRodney W. Grimes 	if (read(rmtape, &c, 1) != 1)
3858fae3551SRodney W. Grimes 		rmtconnaborted();
3868fae3551SRodney W. Grimes 	return (c);
3878fae3551SRodney W. Grimes }
3888fae3551SRodney W. Grimes 
3898fae3551SRodney W. Grimes /* Get a line (guaranteed to have a trailing newline). */
3908fae3551SRodney W. Grimes void
3918fae3551SRodney W. Grimes rmtgets(line, len)
3928fae3551SRodney W. Grimes 	char *line;
3938fae3551SRodney W. Grimes 	int len;
3948fae3551SRodney W. Grimes {
3958fae3551SRodney W. Grimes 	register char *cp = line;
3968fae3551SRodney W. Grimes 
3978fae3551SRodney W. Grimes 	while (len > 1) {
3988fae3551SRodney W. Grimes 		*cp = rmtgetb();
3998fae3551SRodney W. Grimes 		if (*cp == '\n') {
4008fae3551SRodney W. Grimes 			cp[1] = '\0';
4018fae3551SRodney W. Grimes 			return;
4028fae3551SRodney W. Grimes 		}
4038fae3551SRodney W. Grimes 		cp++;
4048fae3551SRodney W. Grimes 		len--;
4058fae3551SRodney W. Grimes 	}
4068fae3551SRodney W. Grimes 	*cp = '\0';
4078fae3551SRodney W. Grimes 	msg("Protocol to remote tape server botched.\n");
4088fae3551SRodney W. Grimes 	msg("(rmtgets got \"%s\").\n", line);
4098fae3551SRodney W. Grimes 	rmtconnaborted();
4108fae3551SRodney W. Grimes }
411