2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 static char sccsid[] = "@(#)dumprmt.c 8.3 (Berkeley) 4/28/95";
38 static const char rcsid[] =
39 "$FreeBSD: src/sbin/dump/dumprmt.c,v 1.14.2.1 2000/07/01 06:31:52 ps Exp $";
42 #include <sys/param.h>
44 #include <sys/socket.h>
47 #include <sys/vnode.h>
49 #include <ufs/inode.h>
51 #include <ufs/ufs/dinode.h>
54 #include <netinet/in.h>
55 #include <netinet/in_systm.h>
56 #include <netinet/ip.h>
57 #include <netinet/tcp.h>
59 #include <protocols/dumprestore.h>
72 #include "pathnames.h"
78 static int rmtstate = TS_CLOSED;
82 static int okname __P((char *));
83 static int rmtcall __P((char *, char *));
84 static void rmtconnaborted __P((/* int, int */));
85 static int rmtgetb __P((void));
86 static void rmtgetconn __P((void));
87 static void rmtgets __P((char *, int));
88 static int rmtreply __P((char *));
90 int krcmd __P((char **, int /*u_short*/, char *, char *, int *, char *));
93 static int errfd = -1;
94 extern int dokerberos;
95 extern int ntrec; /* blocking factor on tape */
102 rmtpeer = malloc(strlen(host) + 1);
104 strcpy(rmtpeer, host);
107 signal(SIGPIPE, rmtconnaborted);
117 msg("Lost connection to remote host.\n");
126 if (select(errfd + 1, &r, NULL, NULL, &t)) {
130 if ((i = read(errfd, buf, sizeof(buf) - 1)) > 0) {
132 msg("on %s: %s%s", rmtpeer, buf,
133 buf[i - 1] == '\n' ? "" : "\n");
145 register const char *rmt;
146 static struct servent *sp = NULL;
147 static struct passwd *pwd = NULL;
154 sp = getservbyname(dokerberos ? "kshell" : "shell", "tcp");
156 msg("%s/tcp: unknown service\n",
157 dokerberos ? "kshell" : "shell");
160 pwd = getpwuid(getuid());
162 msg("who are you?\n");
166 if ((cp = strchr(rmtpeer, '@')) != NULL) {
173 tuser = pwd->pw_name;
174 if ((rmt = getenv("RMT")) == NULL)
179 rmtape = krcmd(&rmtpeer, sp->s_port, tuser, rmt, &errfd,
183 rmtape = rcmd(&rmtpeer, (u_short)sp->s_port, pwd->pw_name,
186 msg("login to %s as %s failed.\n", rmtpeer, tuser);
189 (void)fprintf(stderr, "Connection to %s established.\n", rmtpeer);
190 size = ntrec * TP_BSIZE;
191 if (size > 60 * 1024) /* XXX */
193 /* Leave some space for rmt request/response protocol */
195 while (size > TP_BSIZE &&
196 setsockopt(rmtape, SOL_SOCKET, SO_SNDBUF, &size, sizeof (size)) < 0)
198 (void)setsockopt(rmtape, SOL_SOCKET, SO_RCVBUF, &size, sizeof (size));
199 throughput = IPTOS_THROUGHPUT;
200 if (setsockopt(rmtape, IPPROTO_IP, IP_TOS,
201 &throughput, sizeof(throughput)) < 0)
202 perror("IP_TOS:IPTOS_THROUGHPUT setsockopt");
204 if (setsockopt(rmtape, IPPROTO_TCP, TCP_NODELAY, &on, sizeof (on)) < 0)
205 perror("TCP_NODELAY setsockopt");
215 for (cp = cp0; *cp; cp++) {
217 if (!isascii(c) || !(isalnum(c) || c == '_' || c == '-')) {
218 msg("invalid user name %s\n", cp0);
232 (void)snprintf(buf, sizeof (buf), "O%.226s\n%d\n", tape, mode);
234 return (rmtcall(tape, buf));
241 if (rmtstate != TS_OPEN)
243 rmtcall("close", "C\n");
244 rmtstate = TS_CLOSED;
255 (void)snprintf(line, sizeof (line), "R%d\n", count);
256 n = rmtcall("read", line);
258 /* rmtcall() properly sets errno for us on errors. */
260 for (i = 0; i < n; i += cc) {
261 cc = read(rmtape, buf+i, n - i);
275 (void)snprintf(line, sizeof (line), "W%d\n", count);
276 write(rmtape, line, strlen(line));
277 write(rmtape, buf, count);
278 return (rmtreply("write"));
287 (void)snprintf(line, sizeof (line), "W%d\n", count);
288 write(rmtape, line, strlen(line));
292 rmtwrite1(buf, count)
297 write(rmtape, buf, count);
304 return (rmtreply("write"));
313 (void)snprintf(line, sizeof (line), "L%d\n%d\n", offset, pos);
314 return (rmtcall("seek", line));
325 if (rmtstate != TS_OPEN)
327 rmtcall("status", "S\n");
328 for (i = 0, cp = (char *)&mts; i < sizeof(mts); i++)
341 (void)snprintf(buf, sizeof (buf), "I%d\n%d\n", cmd, count);
342 return (rmtcall("ioctl", buf));
350 if (write(rmtape, buf, strlen(buf)) != strlen(buf))
352 return (rmtreply(cmd));
360 char code[30], emsg[BUFSIZ];
362 rmtgets(code, sizeof (code));
363 if (*code == 'E' || *code == 'F') {
364 rmtgets(emsg, sizeof (emsg));
365 msg("%s: %s", cmd, emsg);
366 errno = atoi(code + 1);
368 rmtstate = TS_CLOSED;
372 /* Kill trailing newline */
373 cp = code + strlen(code);
374 if (cp > code && *--cp == '\n')
377 msg("Protocol to remote tape server botched (code \"%s\").\n",
381 return (atoi(code + 1));
389 if (read(rmtape, &c, 1) != 1)
394 /* Get a line (guaranteed to have a trailing newline). */
400 register char *cp = line;
412 msg("Protocol to remote tape server botched.\n");
413 msg("(rmtgets got \"%s\").\n", line);