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
* 4. Neither the name of the University nor the names of its contributors
14
* may be used to endorse or promote products derived from this software
15
* without specific prior written permission.
17
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32
static char sccsid[] = "@(#)dumprmt.c 8.3 (Berkeley) 4/28/95";
34
static const char rcsid[] =
38
#include <sys/param.h>
40
#include <sys/socket.h>
43
#include <ufs/ufs/dinode.h>
45
#include <netinet/in.h>
46
#include <netinet/in_systm.h>
47
#include <netinet/ip.h>
48
#include <netinet/tcp.h>
50
#include <protocols/dumprestore.h>
62
#include "pathnames.h"
68
static int rmtstate = TS_CLOSED;
72
static int okname(const char *);
73
static int rmtcall(const char *, const char *);
74
static void rmtconnaborted(int);
75
static int rmtgetb(void);
76
static void rmtgetconn(void);
77
static void rmtgets(char *, int);
78
static int rmtreply(const char *);
80
static int errfd = -1;
81
extern int ntrec; /* blocking factor on tape */
84
rmthost(const char *host)
87
rmtpeer = strdup(host);
90
signal(SIGPIPE, rmtconnaborted);
98
rmtconnaborted(int sig __unused)
100
msg("Lost connection to remote host.\n");
109
if (select(errfd + 1, &r, NULL, NULL, &t)) {
113
if ((i = read(errfd, buf, sizeof(buf) - 1)) > 0) {
115
msg("on %s: %s%s", rmtpeer, buf,
116
buf[i - 1] == '\n' ? "" : "\n");
129
static struct servent *sp = NULL;
130
static struct passwd *pwd = NULL;
137
sp = getservbyname("shell", "tcp");
139
msg("shell/tcp: unknown service\n");
142
pwd = getpwuid(getuid());
144
msg("who are you?\n");
148
if ((cp = strchr(rmtpeer, '@')) != NULL) {
155
tuser = pwd->pw_name;
156
if ((rmt = getenv("RMT")) == NULL)
159
rmtape = rcmd(&rmtpeer, (u_short)sp->s_port, pwd->pw_name,
162
msg("login to %s as %s failed.\n", rmtpeer, tuser);
165
(void)fprintf(stderr, "Connection to %s established.\n", rmtpeer);
166
size = ntrec * TP_BSIZE;
167
if (size > 60 * 1024) /* XXX */
169
/* Leave some space for rmt request/response protocol */
171
while (size > TP_BSIZE &&
172
setsockopt(rmtape, SOL_SOCKET, SO_SNDBUF, &size, sizeof (size)) < 0)
174
(void)setsockopt(rmtape, SOL_SOCKET, SO_RCVBUF, &size, sizeof (size));
175
throughput = IPTOS_THROUGHPUT;
176
if (setsockopt(rmtape, IPPROTO_IP, IP_TOS,
177
&throughput, sizeof(throughput)) < 0)
178
perror("IP_TOS:IPTOS_THROUGHPUT setsockopt");
180
if (setsockopt(rmtape, IPPROTO_TCP, TCP_NODELAY, &on, sizeof (on)) < 0)
181
perror("TCP_NODELAY setsockopt");
185
okname(const char *cp0)
190
for (cp = cp0; *cp; cp++) {
192
if (!isascii(c) || !(isalnum(c) || c == '_' || c == '-')) {
193
msg("invalid user name %s\n", cp0);
201
rmtopen(const char *tape, int mode)
205
(void)snprintf(buf, sizeof (buf), "O%.226s\n%d\n", tape, mode);
207
return (rmtcall(tape, buf));
214
if (rmtstate != TS_OPEN)
216
rmtcall("close", "C\n");
217
rmtstate = TS_CLOSED;
221
rmtread(char *buf, int count)
226
(void)snprintf(line, sizeof (line), "R%d\n", count);
227
n = rmtcall("read", line);
229
/* rmtcall() properly sets errno for us on errors. */
231
for (i = 0; i < n; i += cc) {
232
cc = read(rmtape, buf+i, n - i);
240
rmtwrite(const char *buf, int count)
244
(void)snprintf(line, sizeof (line), "W%d\n", count);
245
write(rmtape, line, strlen(line));
246
write(rmtape, buf, count);
247
return (rmtreply("write"));
255
(void)snprintf(line, sizeof (line), "W%d\n", count);
256
write(rmtape, line, strlen(line));
260
rmtwrite1(const char *buf, int count)
263
write(rmtape, buf, count);
270
return (rmtreply("write"));
274
rmtseek(int offset, int pos) /* XXX off_t ? */
278
(void)snprintf(line, sizeof (line), "L%d\n%d\n", offset, pos);
279
return (rmtcall("seek", line));
290
if (rmtstate != TS_OPEN)
292
rmtcall("status", "S\n");
293
for (i = 0, cp = (char *)&mts; i < sizeof(mts); i++)
299
rmtioctl(int cmd, int count)
305
(void)snprintf(buf, sizeof (buf), "I%d\n%d\n", cmd, count);
306
return (rmtcall("ioctl", buf));
310
rmtcall(const char *cmd, const char *buf)
313
if (write(rmtape, buf, strlen(buf)) != strlen(buf))
315
return (rmtreply(cmd));
319
rmtreply(const char *cmd)
322
char code[30], emsg[BUFSIZ];
324
rmtgets(code, sizeof (code));
325
if (*code == 'E' || *code == 'F') {
326
rmtgets(emsg, sizeof (emsg));
327
msg("%s: %s", cmd, emsg);
328
errno = atoi(code + 1);
330
rmtstate = TS_CLOSED;
334
/* Kill trailing newline */
335
cp = code + strlen(code);
336
if (cp > code && *--cp == '\n')
339
msg("Protocol to remote tape server botched (code \"%s\").\n",
343
return (atoi(code + 1));
351
if (read(rmtape, &c, 1) != 1)
356
/* Get a line (guaranteed to have a trailing newline). */
358
rmtgets(char *line, int len)
372
msg("Protocol to remote tape server botched.\n");
373
msg("(rmtgets got \"%s\").\n", line);
added
removed
sbin/dump/dumprmt.c
