1020 lines
23 KiB
C
1020 lines
23 KiB
C
/*
|
|
* Copyright (c) 1983, 1990, 1992, 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.
|
|
*/
|
|
|
|
#include "bsd_locl.h"
|
|
|
|
RCSID("$Id: rcp.c,v 1.43 1997/05/13 09:41:26 bg Exp $");
|
|
|
|
/* Globals */
|
|
static char dst_realm_buf[REALM_SZ];
|
|
static char *dest_realm = NULL;
|
|
static int use_kerberos = 1;
|
|
|
|
static int doencrypt = 0;
|
|
#define OPTIONS "dfKk:prtx"
|
|
|
|
static int errs, rem;
|
|
static struct passwd *pwd;
|
|
static u_short port;
|
|
static uid_t userid;
|
|
static int pflag, iamremote, iamrecursive, targetshouldbedirectory;
|
|
|
|
#define CMDNEEDS 64
|
|
static char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
|
|
|
|
void rsource(char *name, struct stat *statp);
|
|
|
|
#define SERVICE_NAME "rcmd"
|
|
|
|
CREDENTIALS cred;
|
|
MSG_DAT msg_data;
|
|
struct sockaddr_in foreign, local;
|
|
Key_schedule schedule;
|
|
|
|
KTEXT_ST ticket;
|
|
AUTH_DAT kdata;
|
|
|
|
static void
|
|
send_auth(char *h, char *r)
|
|
{
|
|
int lslen, fslen, status;
|
|
long opts;
|
|
|
|
lslen = sizeof(struct sockaddr_in);
|
|
if (getsockname(rem, (struct sockaddr *)&local, &lslen) < 0)
|
|
err(1, "getsockname");
|
|
fslen = sizeof(struct sockaddr_in);
|
|
if (getpeername(rem, (struct sockaddr *)&foreign, &fslen) < 0)
|
|
err(1, "getpeername");
|
|
if ((r == NULL) || (*r == '\0'))
|
|
r = krb_realmofhost(h);
|
|
opts = KOPT_DO_MUTUAL;
|
|
if ((status = krb_sendauth(opts, rem, &ticket, SERVICE_NAME, h, r,
|
|
(unsigned long)getpid(), &msg_data, &cred,
|
|
schedule, &local,
|
|
&foreign, "KCMDV0.1")) != KSUCCESS)
|
|
errx(1, "krb_sendauth failure: %s", krb_get_err_text(status));
|
|
}
|
|
|
|
static void
|
|
answer_auth(void)
|
|
{
|
|
int lslen, fslen, status;
|
|
long opts;
|
|
char inst[INST_SZ], v[9];
|
|
|
|
lslen = sizeof(struct sockaddr_in);
|
|
if (getsockname(rem, (struct sockaddr *)&local, &lslen) < 0)
|
|
err(1, "getsockname");
|
|
fslen = sizeof(struct sockaddr_in);
|
|
if(getpeername(rem, (struct sockaddr *)&foreign, &fslen) < 0)
|
|
err(1, "getperrname");
|
|
k_getsockinst(rem, inst, sizeof(inst));
|
|
opts = KOPT_DO_MUTUAL;
|
|
if ((status = krb_recvauth(opts, rem, &ticket, SERVICE_NAME, inst,
|
|
&foreign, &local,
|
|
&kdata, "", schedule, v)) != KSUCCESS)
|
|
errx(1, "krb_recvauth failure: %s", krb_get_err_text(status));
|
|
}
|
|
|
|
static int
|
|
des_read(int fd, char *buf, int len)
|
|
{
|
|
if (doencrypt)
|
|
return(des_enc_read(fd, buf, len, schedule,
|
|
(iamremote? &kdata.session : &cred.session)));
|
|
else
|
|
return(read(fd, buf, len));
|
|
}
|
|
|
|
static int
|
|
des_write(int fd, char *buf, int len)
|
|
{
|
|
if (doencrypt)
|
|
return(des_enc_write(fd, buf, len, schedule,
|
|
(iamremote? &kdata.session : &cred.session)));
|
|
else
|
|
return(write(fd, buf, len));
|
|
}
|
|
|
|
static void run_err(const char *fmt, ...)
|
|
#ifdef __GNUC__
|
|
__attribute__ ((format (printf, 1, 2)))
|
|
#endif
|
|
;
|
|
|
|
|
|
static void
|
|
run_err(const char *fmt, ...)
|
|
{
|
|
char errbuf[1024];
|
|
|
|
va_list args;
|
|
va_start(args, fmt);
|
|
++errs;
|
|
#define RCPERR "\001rcp: "
|
|
strcpy (errbuf, RCPERR);
|
|
vsnprintf (errbuf + strlen(RCPERR), sizeof(errbuf) - strlen(RCPERR),
|
|
fmt, args);
|
|
strcat (errbuf, "\n");
|
|
des_write (rem, errbuf, strlen(errbuf));
|
|
if (!iamremote)
|
|
vwarnx(fmt, args);
|
|
va_end(args);
|
|
}
|
|
|
|
static void
|
|
verifydir(char *cp)
|
|
{
|
|
struct stat stb;
|
|
|
|
if (!stat(cp, &stb)) {
|
|
if (S_ISDIR(stb.st_mode))
|
|
return;
|
|
errno = ENOTDIR;
|
|
}
|
|
run_err("%s: %s", cp, strerror(errno));
|
|
exit(1);
|
|
}
|
|
|
|
#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
|
|
|
|
static BUF *
|
|
allocbuf(BUF *bp, int fd, int blksize)
|
|
{
|
|
struct stat stb;
|
|
size_t size;
|
|
|
|
if (fstat(fd, &stb) < 0) {
|
|
run_err("fstat: %s", strerror(errno));
|
|
return (0);
|
|
}
|
|
#ifdef HAVE_ST_BLKSIZE
|
|
size = ROUNDUP(stb.st_blksize, blksize);
|
|
#else
|
|
size = blksize;
|
|
#endif
|
|
if (size == 0)
|
|
size = blksize;
|
|
if (bp->cnt >= size)
|
|
return (bp);
|
|
if (bp->buf == NULL)
|
|
bp->buf = malloc(size);
|
|
else
|
|
bp->buf = realloc(bp->buf, size);
|
|
if (bp->buf == NULL) {
|
|
bp->cnt = 0;
|
|
run_err("%s", strerror(errno));
|
|
return (0);
|
|
}
|
|
bp->cnt = size;
|
|
return (bp);
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
fprintf(stderr, "%s\n\t%s\n",
|
|
"usage: rcp [-Kpx] [-k realm] f1 f2",
|
|
"or: rcp [-Kprx] [-k realm] f1 ... fn directory");
|
|
exit(1);
|
|
}
|
|
|
|
static void
|
|
oldw(const char *s)
|
|
{
|
|
char *rstar_no_warn = getenv("RSTAR_NO_WARN");
|
|
if (rstar_no_warn == 0)
|
|
rstar_no_warn = "";
|
|
if (strncmp(rstar_no_warn, "yes", 3) != 0)
|
|
warnx("%s, using standard rcp", s);
|
|
}
|
|
|
|
static RETSIGTYPE
|
|
lostconn(int signo)
|
|
{
|
|
if (!iamremote)
|
|
warnx("lost connection");
|
|
exit(1);
|
|
}
|
|
|
|
static int
|
|
response(void)
|
|
{
|
|
char ch, *cp, resp, rbuf[BUFSIZ];
|
|
|
|
if (des_read(rem, &resp, sizeof(resp)) != sizeof(resp))
|
|
lostconn(0);
|
|
|
|
cp = rbuf;
|
|
switch(resp) {
|
|
case 0: /* ok */
|
|
return (0);
|
|
default:
|
|
*cp++ = resp;
|
|
/* FALLTHROUGH */
|
|
case 1: /* error, followed by error msg */
|
|
case 2: /* fatal error, "" */
|
|
do {
|
|
if (des_read(rem, &ch, sizeof(ch)) != sizeof(ch))
|
|
lostconn(0);
|
|
*cp++ = ch;
|
|
} while (cp < &rbuf[BUFSIZ] && ch != '\n');
|
|
|
|
if (!iamremote)
|
|
write(STDERR_FILENO, rbuf, cp - rbuf);
|
|
++errs;
|
|
if (resp == 1)
|
|
return (-1);
|
|
exit(1);
|
|
}
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
static void
|
|
source(int argc, char **argv)
|
|
{
|
|
struct stat stb;
|
|
static BUF buffer;
|
|
BUF *bp;
|
|
off_t i;
|
|
int amt, fd, haderr, indx, result;
|
|
char *last, *name, buf[BUFSIZ];
|
|
|
|
for (indx = 0; indx < argc; ++indx) {
|
|
name = argv[indx];
|
|
if ((fd = open(name, O_RDONLY, 0)) < 0)
|
|
goto syserr;
|
|
if (fstat(fd, &stb)) {
|
|
syserr: run_err("%s: %s", name, strerror(errno));
|
|
goto next;
|
|
}
|
|
switch (stb.st_mode & S_IFMT) {
|
|
case S_IFREG:
|
|
break;
|
|
case S_IFDIR:
|
|
if (iamrecursive) {
|
|
rsource(name, &stb);
|
|
goto next;
|
|
}
|
|
/* FALLTHROUGH */
|
|
default:
|
|
run_err("%s: not a regular file", name);
|
|
goto next;
|
|
}
|
|
if ((last = strrchr(name, '/')) == NULL)
|
|
last = name;
|
|
else
|
|
++last;
|
|
if (pflag) {
|
|
/*
|
|
* Make it compatible with possible future
|
|
* versions expecting microseconds.
|
|
*/
|
|
snprintf(buf, sizeof(buf), "T%ld 0 %ld 0\n",
|
|
(long)stb.st_mtime, (long)stb.st_atime);
|
|
des_write(rem, buf, strlen(buf));
|
|
if (response() < 0)
|
|
goto next;
|
|
}
|
|
snprintf(buf, sizeof(buf), "C%04o %ld %s\n",
|
|
(int)stb.st_mode & MODEMASK, (long) stb.st_size, last);
|
|
des_write(rem, buf, strlen(buf));
|
|
if (response() < 0)
|
|
goto next;
|
|
if ((bp = allocbuf(&buffer, fd, BUFSIZ)) == NULL) {
|
|
next: close(fd);
|
|
continue;
|
|
}
|
|
|
|
/* Keep writing after an error so that we stay sync'd up. */
|
|
for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
|
|
amt = bp->cnt;
|
|
if (i + amt > stb.st_size)
|
|
amt = stb.st_size - i;
|
|
if (!haderr) {
|
|
result = read(fd, bp->buf, amt);
|
|
if (result != amt)
|
|
haderr = result >= 0 ? EIO : errno;
|
|
}
|
|
if (haderr)
|
|
des_write(rem, bp->buf, amt);
|
|
else {
|
|
result = des_write(rem, bp->buf, amt);
|
|
if (result != amt)
|
|
haderr = result >= 0 ? EIO : errno;
|
|
}
|
|
}
|
|
if (close(fd) && !haderr)
|
|
haderr = errno;
|
|
if (!haderr)
|
|
des_write(rem, "", 1);
|
|
else
|
|
run_err("%s: %s", name, strerror(haderr));
|
|
response();
|
|
}
|
|
}
|
|
|
|
void
|
|
rsource(char *name, struct stat *statp)
|
|
{
|
|
DIR *dirp;
|
|
struct dirent *dp;
|
|
char *last, *vect[1], path[MaxPathLen];
|
|
|
|
if (!(dirp = opendir(name))) {
|
|
run_err("%s: %s", name, strerror(errno));
|
|
return;
|
|
}
|
|
last = strrchr(name, '/');
|
|
if (last == 0)
|
|
last = name;
|
|
else
|
|
last++;
|
|
if (pflag) {
|
|
snprintf(path, sizeof(path), "T%ld 0 %ld 0\n",
|
|
(long)statp->st_mtime, (long)statp->st_atime);
|
|
des_write(rem, path, strlen(path));
|
|
if (response() < 0) {
|
|
closedir(dirp);
|
|
return;
|
|
}
|
|
}
|
|
snprintf(path, sizeof(path),
|
|
"D%04o %d %s\n", (int)statp->st_mode & MODEMASK, 0, last);
|
|
des_write(rem, path, strlen(path));
|
|
if (response() < 0) {
|
|
closedir(dirp);
|
|
return;
|
|
}
|
|
while ((dp = readdir(dirp))) {
|
|
if (dp->d_ino == 0)
|
|
continue;
|
|
if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
|
|
continue;
|
|
if (strlen(name) + 1 + strlen(dp->d_name) >= MaxPathLen - 1) {
|
|
run_err("%s/%s: name too long", name, dp->d_name);
|
|
continue;
|
|
}
|
|
if (snprintf(path, sizeof(path),
|
|
"%s/%s", name, dp->d_name) >= sizeof(path)) {
|
|
run_err("%s/%s: name too long", name, dp->d_name);
|
|
continue;
|
|
}
|
|
vect[0] = path;
|
|
source(1, vect);
|
|
}
|
|
closedir(dirp);
|
|
des_write(rem, "E\n", 2);
|
|
response();
|
|
}
|
|
|
|
static int
|
|
kerberos(char **host, char *bp, char *locuser, char *user)
|
|
{
|
|
int sock = -1, err;
|
|
again:
|
|
if (use_kerberos) {
|
|
rem = KSUCCESS;
|
|
errno = 0;
|
|
if (dest_realm == NULL)
|
|
dest_realm = krb_realmofhost(*host);
|
|
|
|
#if 0
|
|
rem = krcmd(host, port, user, bp, 0, dest_realm);
|
|
#else
|
|
err = kcmd(
|
|
&sock,
|
|
host,
|
|
port,
|
|
NULL, /* locuser not used */
|
|
user,
|
|
bp,
|
|
0,
|
|
&ticket,
|
|
SERVICE_NAME,
|
|
dest_realm,
|
|
(CREDENTIALS *) NULL, /* credentials not used */
|
|
0, /* key schedule not used */
|
|
(MSG_DAT *) NULL, /* MSG_DAT not used */
|
|
(struct sockaddr_in *) NULL, /* local addr not used */
|
|
(struct sockaddr_in *) NULL, /* foreign addr not used */
|
|
0L); /* authopts */
|
|
if (err > KSUCCESS && err < MAX_KRB_ERRORS) {
|
|
warnx("kcmd: %s", krb_get_err_text(err));
|
|
rem = -1;
|
|
} else if (err < 0)
|
|
rem = -1;
|
|
else
|
|
rem = sock;
|
|
#endif
|
|
if (rem < 0) {
|
|
use_kerberos = 0;
|
|
port = get_shell_port(use_kerberos, 0);
|
|
if (errno == ECONNREFUSED)
|
|
oldw("remote host doesn't support Kerberos");
|
|
else if (errno == ENOENT)
|
|
oldw("can't provide Kerberos authentication data");
|
|
goto again;
|
|
}
|
|
} else {
|
|
if (doencrypt)
|
|
errx(1,
|
|
"the -x option requires Kerberos authentication");
|
|
if (geteuid() != 0) {
|
|
errx(1, "not installed setuid root, "
|
|
"only root may use non kerberized rcp");
|
|
}
|
|
rem = rcmd(host, port, locuser, user, bp, 0);
|
|
}
|
|
return (rem);
|
|
}
|
|
|
|
static void
|
|
toremote(char *targ, int argc, char **argv)
|
|
{
|
|
int i, len;
|
|
#ifdef IP_TOS
|
|
int tos;
|
|
#endif
|
|
char *bp, *host, *src, *suser, *thost, *tuser;
|
|
|
|
*targ++ = 0;
|
|
if (*targ == 0)
|
|
targ = ".";
|
|
|
|
if ((thost = strchr(argv[argc - 1], '@'))) {
|
|
/* user@host */
|
|
*thost++ = 0;
|
|
tuser = argv[argc - 1];
|
|
if (*tuser == '\0')
|
|
tuser = NULL;
|
|
else if (!okname(tuser))
|
|
exit(1);
|
|
} else {
|
|
thost = argv[argc - 1];
|
|
tuser = NULL;
|
|
}
|
|
|
|
for (i = 0; i < argc - 1; i++) {
|
|
src = colon(argv[i]);
|
|
if (src) { /* remote to remote */
|
|
*src++ = 0;
|
|
if (*src == 0)
|
|
src = ".";
|
|
host = strchr(argv[i], '@');
|
|
len = strlen(_PATH_RSH) + strlen(argv[i]) +
|
|
strlen(src) + (tuser ? strlen(tuser) : 0) +
|
|
strlen(thost) + strlen(targ) + CMDNEEDS + 20;
|
|
if (!(bp = malloc(len)))
|
|
err(1, " ");
|
|
if (host) {
|
|
*host++ = 0;
|
|
suser = argv[i];
|
|
if (*suser == '\0')
|
|
suser = pwd->pw_name;
|
|
else if (!okname(suser))
|
|
continue;
|
|
snprintf(bp, len,
|
|
"%s %s -l %s -n %s %s '%s%s%s:%s'",
|
|
_PATH_RSH, host, suser, cmd, src,
|
|
tuser ? tuser : "", tuser ? "@" : "",
|
|
thost, targ);
|
|
} else
|
|
snprintf(bp, len,
|
|
"exec %s %s -n %s %s '%s%s%s:%s'",
|
|
_PATH_RSH, argv[i], cmd, src,
|
|
tuser ? tuser : "", tuser ? "@" : "",
|
|
thost, targ);
|
|
susystem(bp, userid);
|
|
free(bp);
|
|
} else { /* local to remote */
|
|
if (rem == -1) {
|
|
len = strlen(targ) + CMDNEEDS + 20;
|
|
if (!(bp = malloc(len)))
|
|
err(1, " ");
|
|
snprintf(bp, len, "%s -t %s", cmd, targ);
|
|
host = thost;
|
|
if (use_kerberos)
|
|
rem = kerberos(&host, bp,
|
|
#ifdef __CYGWIN32__
|
|
tuser,
|
|
#else
|
|
pwd->pw_name,
|
|
#endif
|
|
tuser ? tuser : pwd->pw_name);
|
|
else
|
|
rem = rcmd(&host, port,
|
|
#ifdef __CYGWIN32__
|
|
tuser,
|
|
#else
|
|
pwd->pw_name,
|
|
#endif
|
|
tuser ? tuser : pwd->pw_name,
|
|
bp, 0);
|
|
if (rem < 0)
|
|
exit(1);
|
|
#if defined(IP_TOS) && defined(HAVE_SETSOCKOPT)
|
|
tos = IPTOS_THROUGHPUT;
|
|
if (setsockopt(rem, IPPROTO_IP, IP_TOS,
|
|
(void *)&tos, sizeof(int)) < 0)
|
|
warn("TOS (ignored)");
|
|
#endif /* IP_TOS */
|
|
if (doencrypt)
|
|
send_auth(host, dest_realm);
|
|
if (response() < 0)
|
|
exit(1);
|
|
free(bp);
|
|
setuid(userid);
|
|
}
|
|
source(1, argv+i);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
sink(int argc, char **argv)
|
|
{
|
|
static BUF buffer;
|
|
struct stat stb;
|
|
struct timeval tv[2];
|
|
enum { YES, NO, DISPLAYED } wrerr;
|
|
BUF *bp;
|
|
off_t i, j;
|
|
int amt, count, exists, first, mask, mode, ofd, omode;
|
|
int setimes, size, targisdir, wrerrno=0;
|
|
char ch, *cp, *np, *targ, *why, *vect[1], buf[BUFSIZ];
|
|
|
|
#define atime tv[0]
|
|
#define mtime tv[1]
|
|
#define SCREWUP(str) { why = str; goto screwup; }
|
|
|
|
setimes = targisdir = 0;
|
|
mask = umask(0);
|
|
if (!pflag)
|
|
umask(mask);
|
|
if (argc != 1) {
|
|
run_err("ambiguous target");
|
|
exit(1);
|
|
}
|
|
targ = *argv;
|
|
if (targetshouldbedirectory)
|
|
verifydir(targ);
|
|
des_write(rem, "", 1);
|
|
if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
|
|
targisdir = 1;
|
|
for (first = 1;; first = 0) {
|
|
cp = buf;
|
|
if (des_read(rem, cp, 1) <= 0)
|
|
return;
|
|
if (*cp++ == '\n')
|
|
SCREWUP("unexpected <newline>");
|
|
do {
|
|
if (des_read(rem, &ch, sizeof(ch)) != sizeof(ch))
|
|
SCREWUP("lost connection");
|
|
*cp++ = ch;
|
|
} while (cp < &buf[BUFSIZ - 1] && ch != '\n');
|
|
*cp = 0;
|
|
|
|
if (buf[0] == '\01' || buf[0] == '\02') {
|
|
if (iamremote == 0)
|
|
write(STDERR_FILENO,
|
|
buf + 1, strlen(buf + 1));
|
|
if (buf[0] == '\02')
|
|
exit(1);
|
|
++errs;
|
|
continue;
|
|
}
|
|
if (buf[0] == 'E') {
|
|
des_write(rem, "", 1);
|
|
return;
|
|
}
|
|
|
|
if (ch == '\n')
|
|
*--cp = 0;
|
|
|
|
#define getnum(t) (t) = 0; while (isdigit(*cp)) (t) = (t) * 10 + (*cp++ - '0');
|
|
cp = buf;
|
|
if (*cp == 'T') {
|
|
setimes++;
|
|
cp++;
|
|
getnum(mtime.tv_sec);
|
|
if (*cp++ != ' ')
|
|
SCREWUP("mtime.sec not delimited");
|
|
getnum(mtime.tv_usec);
|
|
if (*cp++ != ' ')
|
|
SCREWUP("mtime.usec not delimited");
|
|
getnum(atime.tv_sec);
|
|
if (*cp++ != ' ')
|
|
SCREWUP("atime.sec not delimited");
|
|
getnum(atime.tv_usec);
|
|
if (*cp++ != '\0')
|
|
SCREWUP("atime.usec not delimited");
|
|
des_write(rem, "", 1);
|
|
continue;
|
|
}
|
|
if (*cp != 'C' && *cp != 'D') {
|
|
/*
|
|
* Check for the case "rcp remote:foo\* local:bar".
|
|
* In this case, the line "No match." can be returned
|
|
* by the shell before the rcp command on the remote is
|
|
* executed so the ^Aerror_message convention isn't
|
|
* followed.
|
|
*/
|
|
if (first) {
|
|
run_err("%s", cp);
|
|
exit(1);
|
|
}
|
|
SCREWUP("expected control record");
|
|
}
|
|
mode = 0;
|
|
for (++cp; cp < buf + 5; cp++) {
|
|
if (*cp < '0' || *cp > '7')
|
|
SCREWUP("bad mode");
|
|
mode = (mode << 3) | (*cp - '0');
|
|
}
|
|
if (*cp++ != ' ')
|
|
SCREWUP("mode not delimited");
|
|
|
|
for (size = 0; isdigit(*cp);)
|
|
size = size * 10 + (*cp++ - '0');
|
|
if (*cp++ != ' ')
|
|
SCREWUP("size not delimited");
|
|
if (targisdir) {
|
|
static char *namebuf;
|
|
static int cursize;
|
|
size_t need;
|
|
|
|
need = strlen(targ) + strlen(cp) + 250;
|
|
if (need > cursize) {
|
|
if (!(namebuf = malloc(need)))
|
|
run_err("%s", strerror(errno));
|
|
}
|
|
snprintf(namebuf, need, "%s%s%s", targ,
|
|
*targ ? "/" : "", cp);
|
|
np = namebuf;
|
|
} else
|
|
np = targ;
|
|
exists = stat(np, &stb) == 0;
|
|
if (buf[0] == 'D') {
|
|
int mod_flag = pflag;
|
|
if (exists) {
|
|
if (!S_ISDIR(stb.st_mode)) {
|
|
errno = ENOTDIR;
|
|
goto bad;
|
|
}
|
|
if (pflag)
|
|
chmod(np, mode);
|
|
} else {
|
|
/* Handle copying from a read-only directory */
|
|
mod_flag = 1;
|
|
if (mkdir(np, mode | S_IRWXU) < 0)
|
|
goto bad;
|
|
}
|
|
vect[0] = np;
|
|
sink(1, vect);
|
|
if (setimes) {
|
|
struct utimbuf times;
|
|
times.actime = atime.tv_sec;
|
|
times.modtime = mtime.tv_sec;
|
|
setimes = 0;
|
|
if (utime(np, ×) < 0)
|
|
run_err("%s: set times: %s",
|
|
np, strerror(errno));
|
|
}
|
|
if (mod_flag)
|
|
chmod(np, mode);
|
|
continue;
|
|
}
|
|
omode = mode;
|
|
mode |= S_IWRITE;
|
|
if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) {
|
|
bad: run_err("%s: %s", np, strerror(errno));
|
|
continue;
|
|
}
|
|
des_write(rem, "", 1);
|
|
if ((bp = allocbuf(&buffer, ofd, BUFSIZ)) == NULL) {
|
|
close(ofd);
|
|
continue;
|
|
}
|
|
cp = bp->buf;
|
|
wrerr = NO;
|
|
for (count = i = 0; i < size; i += BUFSIZ) {
|
|
amt = BUFSIZ;
|
|
if (i + amt > size)
|
|
amt = size - i;
|
|
count += amt;
|
|
do {
|
|
j = des_read(rem, cp, amt);
|
|
if (j <= 0) {
|
|
run_err("%s", j ? strerror(errno) :
|
|
"dropped connection");
|
|
exit(1);
|
|
}
|
|
amt -= j;
|
|
cp += j;
|
|
} while (amt > 0);
|
|
if (count == bp->cnt) {
|
|
/* Keep reading so we stay sync'd up. */
|
|
if (wrerr == NO) {
|
|
j = write(ofd, bp->buf, count);
|
|
if (j != count) {
|
|
wrerr = YES;
|
|
wrerrno = j >= 0 ? EIO : errno;
|
|
}
|
|
}
|
|
count = 0;
|
|
cp = bp->buf;
|
|
}
|
|
}
|
|
if (count != 0 && wrerr == NO &&
|
|
(j = write(ofd, bp->buf, count)) != count) {
|
|
wrerr = YES;
|
|
wrerrno = j >= 0 ? EIO : errno;
|
|
}
|
|
if (ftruncate(ofd, size)) {
|
|
run_err("%s: truncate: %s", np, strerror(errno));
|
|
wrerr = DISPLAYED;
|
|
}
|
|
if (pflag) {
|
|
if (exists || omode != mode)
|
|
#ifdef HAVE_FCHMOD
|
|
if (fchmod(ofd, omode))
|
|
#else
|
|
if (chmod(np, omode))
|
|
#endif
|
|
run_err("%s: set mode: %s",
|
|
np, strerror(errno));
|
|
} else {
|
|
if (!exists && omode != mode)
|
|
#ifdef HAVE_FCHMOD
|
|
if (fchmod(ofd, omode & ~mask))
|
|
#else
|
|
if (chmod(np, omode & ~mask))
|
|
#endif
|
|
run_err("%s: set mode: %s",
|
|
np, strerror(errno));
|
|
}
|
|
close(ofd);
|
|
response();
|
|
if (setimes && wrerr == NO) {
|
|
struct utimbuf times;
|
|
times.actime = atime.tv_sec;
|
|
times.modtime = mtime.tv_sec;
|
|
setimes = 0;
|
|
if (utime(np, ×) < 0) {
|
|
run_err("%s: set times: %s",
|
|
np, strerror(errno));
|
|
wrerr = DISPLAYED;
|
|
}
|
|
}
|
|
switch(wrerr) {
|
|
case YES:
|
|
run_err("%s: %s", np, strerror(wrerrno));
|
|
break;
|
|
case NO:
|
|
des_write(rem, "", 1);
|
|
break;
|
|
case DISPLAYED:
|
|
break;
|
|
}
|
|
}
|
|
screwup:
|
|
run_err("protocol error: %s", why);
|
|
exit(1);
|
|
}
|
|
|
|
static void
|
|
tolocal(int argc, char **argv)
|
|
{
|
|
int i, len;
|
|
#ifdef IP_TOS
|
|
int tos;
|
|
#endif
|
|
char *bp, *host, *src, *suser;
|
|
|
|
for (i = 0; i < argc - 1; i++) {
|
|
if (!(src = colon(argv[i]))) { /* Local to local. */
|
|
len = strlen(_PATH_CP) + strlen(argv[i]) +
|
|
strlen(argv[argc - 1]) + 20;
|
|
if (!(bp = malloc(len)))
|
|
err(1, " ");
|
|
snprintf(bp, len, "exec %s%s%s %s %s", _PATH_CP,
|
|
iamrecursive ? " -r" : "", pflag ? " -p" : "",
|
|
argv[i], argv[argc - 1]);
|
|
if (susystem(bp, userid))
|
|
++errs;
|
|
free(bp);
|
|
continue;
|
|
}
|
|
*src++ = 0;
|
|
if (*src == 0)
|
|
src = ".";
|
|
if ((host = strchr(argv[i], '@')) == NULL) {
|
|
#ifdef __CYGWIN32__
|
|
errx (1, "Sorry, you need to specify the username");
|
|
#else
|
|
host = argv[i];
|
|
suser = pwd->pw_name;
|
|
#endif
|
|
} else {
|
|
*host++ = 0;
|
|
suser = argv[i];
|
|
if (*suser == '\0')
|
|
#ifdef __CYGWIN32__
|
|
errx (1, "Sorry, you need to specify the username");
|
|
#else
|
|
suser = pwd->pw_name;
|
|
#endif
|
|
else if (!okname(suser))
|
|
continue;
|
|
}
|
|
len = strlen(src) + CMDNEEDS + 20;
|
|
if ((bp = malloc(len)) == NULL)
|
|
err(1, " ");
|
|
snprintf(bp, len, "%s -f %s", cmd, src);
|
|
rem =
|
|
use_kerberos ?
|
|
kerberos(&host, bp,
|
|
#ifndef __CYGWIN32__
|
|
pwd->pw_name,
|
|
#else
|
|
suser,
|
|
#endif
|
|
suser) :
|
|
rcmd(&host, port,
|
|
#ifndef __CYGWIN32__
|
|
pwd->pw_name,
|
|
#else
|
|
suser,
|
|
#endif
|
|
suser, bp, 0);
|
|
free(bp);
|
|
if (rem < 0) {
|
|
++errs;
|
|
continue;
|
|
}
|
|
seteuid(userid);
|
|
#if defined(IP_TOS) && defined(HAVE_SETSOCKOPT)
|
|
tos = IPTOS_THROUGHPUT;
|
|
if (setsockopt(rem, IPPROTO_IP, IP_TOS, (void *)&tos,
|
|
sizeof(int)) < 0)
|
|
warn("TOS (ignored)");
|
|
#endif /* IP_TOS */
|
|
if (doencrypt)
|
|
send_auth(host, dest_realm);
|
|
sink(1, argv + argc - 1);
|
|
seteuid(0);
|
|
close(rem);
|
|
rem = -1;
|
|
}
|
|
}
|
|
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
int ch, fflag, tflag;
|
|
char *targ;
|
|
|
|
set_progname(argv[0]);
|
|
fflag = tflag = 0;
|
|
while ((ch = getopt(argc, argv, OPTIONS)) != EOF)
|
|
switch(ch) { /* User-visible flags. */
|
|
case 'K':
|
|
use_kerberos = 0;
|
|
break;
|
|
case 'k':
|
|
dest_realm = dst_realm_buf;
|
|
strncpy(dst_realm_buf, optarg, REALM_SZ);
|
|
break;
|
|
case 'x':
|
|
doencrypt = 1;
|
|
LEFT_JUSTIFIED = 1;
|
|
break;
|
|
case 'p':
|
|
pflag = 1;
|
|
break;
|
|
case 'r':
|
|
iamrecursive = 1;
|
|
break;
|
|
/* Server options. */
|
|
case 'd':
|
|
targetshouldbedirectory = 1;
|
|
break;
|
|
case 'f': /* "from" */
|
|
iamremote = 1;
|
|
fflag = 1;
|
|
break;
|
|
case 't': /* "to" */
|
|
iamremote = 1;
|
|
tflag = 1;
|
|
break;
|
|
case '?':
|
|
default:
|
|
usage();
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
/* Rcp implements encrypted file transfer without using the
|
|
* kshell service, pass 0 for no encryption */
|
|
port = get_shell_port(use_kerberos, 0);
|
|
|
|
#ifndef __CYGWIN32__
|
|
if ((pwd = k_getpwuid(userid = getuid())) == NULL)
|
|
errx(1, "unknown user %d", (int)userid);
|
|
#endif
|
|
|
|
rem = STDIN_FILENO; /* XXX */
|
|
|
|
if (fflag) { /* Follow "protocol", send data. */
|
|
if (doencrypt)
|
|
answer_auth();
|
|
response();
|
|
setuid(userid);
|
|
if (k_hasafs()) {
|
|
/* Sometimes we will need cell specific tokens
|
|
* to be able to read and write files, thus,
|
|
* the token stuff done in rshd might not
|
|
* suffice.
|
|
*/
|
|
char cell[64];
|
|
if (k_afs_cell_of_file(pwd->pw_dir,
|
|
cell, sizeof(cell)) == 0)
|
|
k_afsklog(cell, 0);
|
|
k_afsklog(0, 0);
|
|
}
|
|
source(argc, argv);
|
|
exit(errs);
|
|
}
|
|
|
|
if (tflag) { /* Receive data. */
|
|
if (doencrypt)
|
|
answer_auth();
|
|
setuid(userid);
|
|
if (k_hasafs()) {
|
|
char cell[64];
|
|
if (k_afs_cell_of_file(pwd->pw_dir,
|
|
cell, sizeof(cell)) == 0)
|
|
k_afsklog(cell, 0);
|
|
k_afsklog(0, 0);
|
|
}
|
|
sink(argc, argv);
|
|
exit(errs);
|
|
}
|
|
|
|
if (argc < 2)
|
|
usage();
|
|
if (argc > 2)
|
|
targetshouldbedirectory = 1;
|
|
|
|
rem = -1;
|
|
/* Command to be executed on remote system using "rsh". */
|
|
snprintf(cmd, sizeof(cmd),
|
|
"rcp%s%s%s%s", iamrecursive ? " -r" : "",
|
|
(doencrypt && use_kerberos ? " -x" : ""),
|
|
pflag ? " -p" : "", targetshouldbedirectory ? " -d" : "");
|
|
|
|
signal(SIGPIPE, lostconn);
|
|
|
|
if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */
|
|
toremote(targ, argc, argv);
|
|
else {
|
|
tolocal(argc, argv); /* Dest is local host. */
|
|
if (targetshouldbedirectory)
|
|
verifydir(argv[argc - 1]);
|
|
}
|
|
exit(errs);
|
|
}
|