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- /*-
- * Copyright (c) 1980 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.
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)dumprmt.c 5.15 (Berkeley) 6/18/92";
- #endif /* not lint */
-
- #ifdef sunos
- #include <stdio.h>
- #include <ctype.h>
- #include <sys/param.h>
- #include <sys/mtio.h>
- #include <sys/ioctl.h>
- #include <sys/socket.h>
- #include <sys/stat.h>
- #else
- #include <sys/param.h>
- #include <sys/mtio.h>
- #include <sys/ioctl.h>
- #include <sys/socket.h>
- #include <sys/time.h>
- #include <stdio.h>
- #endif
- #include <ufs/ufs/dinode.h>
- #include <signal.h>
-
- #include <netinet/in.h>
-
- #include <netdb.h>
- #include <protocols/dumprestore.h>
- #include <pwd.h>
- #ifdef __STDC__
- #include <unistd.h>
- #include <stdlib.h>
- #include <string.h>
- #endif
- #include "pathnames.h"
-
- #define TS_CLOSED 0
- #define TS_OPEN 1
-
- static int rmtstate = TS_CLOSED;
- int rmtape;
- void rmtgetconn();
- void rmtconnaborted();
- int rmtreply();
- int rmtgetb();
- void rmtgets();
- int rmtcall();
- char *rmtpeer;
-
- extern int ntrec; /* blocking factor on tape */
- extern void msg();
-
- extern void exit();
-
- int
- rmthost(host)
- char *host;
- {
-
- rmtpeer = host;
- signal(SIGPIPE, rmtconnaborted);
- rmtgetconn();
- if (rmtape < 0)
- return (0);
- return (1);
- }
-
- void
- rmtconnaborted()
- {
-
- (void) fprintf(stderr, "rdump: Lost connection to remote host.\n");
- (void) exit(1);
- }
-
- void
- rmtgetconn()
- {
- static struct servent *sp = 0;
- struct passwd *pw;
- char *name = "root";
- int size;
-
- if (sp == 0) {
- sp = getservbyname("shell", "tcp");
- if (sp == 0) {
- (void) fprintf(stderr,
- "rdump: shell/tcp: unknown service\n");
- (void) exit(1);
- }
- }
- pw = getpwuid(getuid());
- if (pw && pw->pw_name)
- name = pw->pw_name;
- rmtape = rcmd(&rmtpeer, (u_short)sp->s_port, name, name, _PATH_RMT,
- (int *)0);
- size = ntrec * TP_BSIZE;
- while (size > TP_BSIZE &&
- setsockopt(rmtape, SOL_SOCKET, SO_SNDBUF, &size, sizeof (size)) < 0)
- size -= TP_BSIZE;
- }
-
- int
- rmtopen(tape, mode)
- char *tape;
- int mode;
- {
- char buf[256];
-
- (void)sprintf(buf, "O%s\n%d\n", tape, mode);
- rmtstate = TS_OPEN;
- return (rmtcall(tape, buf));
- }
-
- void
- rmtclose()
- {
-
- if (rmtstate != TS_OPEN)
- return;
- rmtcall("close", "C\n");
- rmtstate = TS_CLOSED;
- }
-
- int
- rmtread(buf, count)
- char *buf;
- int count;
- {
- char line[30];
- int n, i, cc;
- extern errno;
-
- (void)sprintf(line, "R%d\n", count);
- n = rmtcall("read", line);
- if (n < 0) {
- errno = n;
- return (-1);
- }
- for (i = 0; i < n; i += cc) {
- cc = read(rmtape, buf+i, n - i);
- if (cc <= 0) {
- rmtconnaborted();
- }
- }
- return (n);
- }
-
- int
- rmtwrite(buf, count)
- char *buf;
- int count;
- {
- char line[30];
-
- (void)sprintf(line, "W%d\n", count);
- write(rmtape, line, strlen(line));
- write(rmtape, buf, count);
- return (rmtreply("write"));
- }
-
- void
- rmtwrite0(count)
- int count;
- {
- char line[30];
-
- (void)sprintf(line, "W%d\n", count);
- write(rmtape, line, strlen(line));
- }
-
- void
- rmtwrite1(buf, count)
- char *buf;
- int count;
- {
-
- write(rmtape, buf, count);
- }
-
- int
- rmtwrite2()
- {
-
- return (rmtreply("write"));
- }
-
- int
- rmtseek(offset, pos)
- int offset, pos;
- {
- char line[80];
-
- (void)sprintf(line, "L%d\n%d\n", offset, pos);
- return (rmtcall("seek", line));
- }
-
- struct mtget mts;
-
- struct mtget *
- rmtstatus()
- {
- register int i;
- register char *cp;
-
- if (rmtstate != TS_OPEN)
- return (0);
- rmtcall("status", "S\n");
- for (i = 0, cp = (char *)&mts; i < sizeof(mts); i++)
- *cp++ = rmtgetb();
- return (&mts);
- }
-
- int
- rmtioctl(cmd, count)
- int cmd, count;
- {
- char buf[256];
-
- if (count < 0)
- return (-1);
- (void)sprintf(buf, "I%d\n%d\n", cmd, count);
- return (rmtcall("ioctl", buf));
- }
-
- int
- rmtcall(cmd, buf)
- char *cmd, *buf;
- {
-
- if (write(rmtape, buf, strlen(buf)) != strlen(buf))
- rmtconnaborted();
- return (rmtreply(cmd));
- }
-
- int
- rmtreply(cmd)
- char *cmd;
- {
- char code[30], emsg[BUFSIZ];
-
- rmtgets(code, sizeof (code));
- if (*code == 'E' || *code == 'F') {
- rmtgets(emsg, sizeof (emsg));
- msg("%s: %s\n", cmd, emsg, code + 1);
- if (*code == 'F') {
- rmtstate = TS_CLOSED;
- return (-1);
- }
- return (-1);
- }
- if (*code != 'A') {
- msg("Protocol to remote tape server botched (code %s?).\n",
- code);
- rmtconnaborted();
- }
- return (atoi(code + 1));
- }
-
- int
- rmtgetb()
- {
- char c;
-
- if (read(rmtape, &c, 1) != 1)
- rmtconnaborted();
- return (c);
- }
-
- void
- rmtgets(cp, len)
- char *cp;
- int len;
- {
-
- while (len > 1) {
- *cp = rmtgetb();
- if (*cp == '\n') {
- cp[1] = 0;
- return;
- }
- cp++;
- len--;
- }
- msg("Protocol to remote tape server botched (in rmtgets).\n");
- rmtconnaborted();
- }
-