d226ef144b
options one would normally expect to set the realm, enable encryption, and whatnot, but this actually is able to contact the remote server, so at least it's a start. (As a bonus, the stripped static binary is unquestionably exportable.)
421 lines
8.5 KiB
C
421 lines
8.5 KiB
C
/*-
|
|
* Copyright (c) 1980, 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.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)dumprmt.c 8.3 (Berkeley) 4/28/95";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/mtio.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/time.h>
|
|
#ifdef sunos
|
|
#include <sys/vnode.h>
|
|
|
|
#include <ufs/inode.h>
|
|
#else
|
|
#include <ufs/ufs/dinode.h>
|
|
#endif
|
|
|
|
#include <netinet/in.h>
|
|
#include <netinet/in_systm.h>
|
|
#include <netinet/ip.h>
|
|
|
|
#include <protocols/dumprestore.h>
|
|
|
|
#include <ctype.h>
|
|
#include <err.h>
|
|
#include <netdb.h>
|
|
#include <pwd.h>
|
|
#include <signal.h>
|
|
#include <stdio.h>
|
|
#ifdef __STDC__
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
#include "pathnames.h"
|
|
#include "dump.h"
|
|
|
|
#define TS_CLOSED 0
|
|
#define TS_OPEN 1
|
|
|
|
static int rmtstate = TS_CLOSED;
|
|
static int rmtape;
|
|
static char *rmtpeer;
|
|
|
|
static int okname __P((char *));
|
|
static int rmtcall __P((char *, char *));
|
|
static void rmtconnaborted __P((/* int, int */));
|
|
static int rmtgetb __P((void));
|
|
static void rmtgetconn __P((void));
|
|
static void rmtgets __P((char *, int));
|
|
static int rmtreply __P((char *));
|
|
#ifdef KERBEROS
|
|
int krcmd __P((char **, int /*u_short*/, char *, char *, int *, char *));
|
|
#endif
|
|
|
|
static int errfd = -1;
|
|
extern int dokerberos;
|
|
extern int ntrec; /* blocking factor on tape */
|
|
|
|
int
|
|
rmthost(host)
|
|
char *host;
|
|
{
|
|
|
|
rmtpeer = malloc(strlen(host) + 1);
|
|
if (rmtpeer)
|
|
strcpy(rmtpeer, host);
|
|
else
|
|
rmtpeer = host;
|
|
signal(SIGPIPE, rmtconnaborted);
|
|
rmtgetconn();
|
|
if (rmtape < 0)
|
|
return (0);
|
|
return (1);
|
|
}
|
|
|
|
static void
|
|
rmtconnaborted()
|
|
{
|
|
msg("Lost connection to remote host.\n");
|
|
if (errfd != -1) {
|
|
fd_set r;
|
|
struct timeval t;
|
|
|
|
FD_ZERO(&r);
|
|
FD_SET(errfd, &r);
|
|
t.tv_sec = 0;
|
|
t.tv_usec = 0;
|
|
if (select(errfd + 1, &r, NULL, NULL, &t)) {
|
|
int i;
|
|
char buf[2048];
|
|
|
|
if ((i = read(errfd, buf, sizeof(buf) - 1)) > 0) {
|
|
buf[i] = '\0';
|
|
msg("on %s: %s%s", rmtpeer, buf,
|
|
buf[i - 1] == '\n' ? "" : "\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
exit(X_ABORT);
|
|
}
|
|
|
|
void
|
|
rmtgetconn()
|
|
{
|
|
register char *cp;
|
|
register const char *rmt;
|
|
static struct servent *sp = NULL;
|
|
static struct passwd *pwd = NULL;
|
|
#ifdef notdef
|
|
static int on = 1;
|
|
#endif
|
|
char *tuser;
|
|
int size;
|
|
int throughput;
|
|
|
|
if (sp == NULL) {
|
|
sp = getservbyname(dokerberos ? "kshell" : "shell", "tcp");
|
|
if (sp == NULL) {
|
|
msg("%s/tcp: unknown service\n",
|
|
dokerberos ? "kshell" : "shell");
|
|
exit(X_ABORT);
|
|
}
|
|
pwd = getpwuid(getuid());
|
|
if (pwd == NULL) {
|
|
msg("who are you?\n");
|
|
exit(X_ABORT);
|
|
}
|
|
}
|
|
if ((cp = strchr(rmtpeer, '@')) != NULL) {
|
|
tuser = rmtpeer;
|
|
*cp = '\0';
|
|
if (!okname(tuser))
|
|
exit(X_ABORT);
|
|
rmtpeer = ++cp;
|
|
} else
|
|
tuser = pwd->pw_name;
|
|
if ((rmt = getenv("RMT")) == NULL)
|
|
rmt = _PATH_RMT;
|
|
msg("");
|
|
#ifdef KERBEROS
|
|
if (dokerberos)
|
|
rmtape = krcmd(&rmtpeer, sp->s_port, tuser, rmt, &errfd,
|
|
(char *)0);
|
|
else
|
|
#endif
|
|
rmtape = rcmd(&rmtpeer, (u_short)sp->s_port, pwd->pw_name,
|
|
tuser, rmt, &errfd);
|
|
if (rmtape < 0) {
|
|
msg("login to %s as %s failed.\n", rmtpeer, tuser);
|
|
return;
|
|
}
|
|
(void)fprintf(stderr, "Connection to %s established.\n", rmtpeer);
|
|
size = ntrec * TP_BSIZE;
|
|
if (size > 60 * 1024) /* XXX */
|
|
size = 60 * 1024;
|
|
/* Leave some space for rmt request/response protocol */
|
|
size += 2 * 1024;
|
|
while (size > TP_BSIZE &&
|
|
setsockopt(rmtape, SOL_SOCKET, SO_SNDBUF, &size, sizeof (size)) < 0)
|
|
size -= TP_BSIZE;
|
|
(void)setsockopt(rmtape, SOL_SOCKET, SO_RCVBUF, &size, sizeof (size));
|
|
throughput = IPTOS_THROUGHPUT;
|
|
if (setsockopt(rmtape, IPPROTO_IP, IP_TOS,
|
|
&throughput, sizeof(throughput)) < 0)
|
|
perror("IP_TOS:IPTOS_THROUGHPUT setsockopt");
|
|
|
|
#ifdef notdef
|
|
if (setsockopt(rmtape, IPPROTO_TCP, TCP_NODELAY, &on, sizeof (on)) < 0)
|
|
perror("TCP_NODELAY setsockopt");
|
|
#endif
|
|
}
|
|
|
|
static int
|
|
okname(cp0)
|
|
char *cp0;
|
|
{
|
|
register char *cp;
|
|
register int c;
|
|
|
|
for (cp = cp0; *cp; cp++) {
|
|
c = *cp;
|
|
if (!isascii(c) || !(isalnum(c) || c == '_' || c == '-')) {
|
|
msg("invalid user name %s\n", cp0);
|
|
return (0);
|
|
}
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
int
|
|
rmtopen(tape, mode)
|
|
char *tape;
|
|
int mode;
|
|
{
|
|
char buf[256];
|
|
|
|
(void)snprintf(buf, sizeof (buf), "O%.226s\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)snprintf(line, sizeof (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)snprintf(line, sizeof (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)snprintf(line, sizeof (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)snprintf(line, sizeof (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 (NULL);
|
|
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)snprintf(buf, sizeof (buf), "I%d\n%d\n", cmd, count);
|
|
return (rmtcall("ioctl", buf));
|
|
}
|
|
|
|
static int
|
|
rmtcall(cmd, buf)
|
|
char *cmd, *buf;
|
|
{
|
|
|
|
if (write(rmtape, buf, strlen(buf)) != strlen(buf))
|
|
rmtconnaborted();
|
|
return (rmtreply(cmd));
|
|
}
|
|
|
|
static int
|
|
rmtreply(cmd)
|
|
char *cmd;
|
|
{
|
|
register char *cp;
|
|
char code[30], emsg[BUFSIZ];
|
|
|
|
rmtgets(code, sizeof (code));
|
|
if (*code == 'E' || *code == 'F') {
|
|
rmtgets(emsg, sizeof (emsg));
|
|
msg("%s: %s", cmd, emsg);
|
|
if (*code == 'F') {
|
|
rmtstate = TS_CLOSED;
|
|
return (-1);
|
|
}
|
|
return (-1);
|
|
}
|
|
if (*code != 'A') {
|
|
/* Kill trailing newline */
|
|
cp = code + strlen(code);
|
|
if (cp > code && *--cp == '\n')
|
|
*cp = '\0';
|
|
|
|
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);
|
|
}
|
|
|
|
/* Get a line (guaranteed to have a trailing newline). */
|
|
void
|
|
rmtgets(line, len)
|
|
char *line;
|
|
int len;
|
|
{
|
|
register char *cp = line;
|
|
|
|
while (len > 1) {
|
|
*cp = rmtgetb();
|
|
if (*cp == '\n') {
|
|
cp[1] = '\0';
|
|
return;
|
|
}
|
|
cp++;
|
|
len--;
|
|
}
|
|
*cp = '\0';
|
|
msg("Protocol to remote tape server botched.\n");
|
|
msg("(rmtgets got \"%s\").\n", line);
|
|
rmtconnaborted();
|
|
}
|