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/*
scp - secure remote copy. This is basically patched BSD rcp which uses ssh
to do the data transfer (instead of using rcmd).
NOTE: This version should NOT be suid root. (This uses ssh to do the transfer
and ssh has the necessary privileges.)
1995 Timo Rinne <tri@iki.fi>, Tatu Ylonen <ylo@cs.hut.fi>
*/
/*
* $Id: scp.c,v 1.14 1998/07/08 01:14:25 kivinen Exp $
* $Log: scp.c,v $
* Revision 1.14 1998/07/08 01:14:25 kivinen
* Changed scp to run ssh1 instead of ssh.
*
* Revision 1.13 1998/07/08 00:49:40 kivinen
* Added all kind of possible (and impossible) ways to
* disable/enable scp statistics. Added -L option.
*
* Revision 1.12 1998/06/12 08:04:20 kivinen
* Added disablation of statistics if stdout is not a tty or -B
* option is given.
*
* Revision 1.11 1998/06/11 00:10:25 kivinen
* Added -q option. Added statistics output.
*
* Revision 1.10 1998/05/23 20:24:07 kivinen
* Changed () -> (void).
*
* Revision 1.9 1998/03/30 22:23:06 kivinen
* Changed size variable to be off_t instead of int when reading
* file. This should fix the 2GB file size limit if your system
* supports > 2GB files.
*
* Revision 1.8 1997/06/04 13:52:52 kivinen
* Moved ssh_options before other options so you can override
* options given by scp.
*
* Revision 1.7 1997/04/23 00:03:04 kivinen
* Added -S flag
*
* Revision 1.6 1997/04/17 04:20:06 kivinen
* *** empty log message ***
*
* Revision 1.5 1997/03/26 07:15:57 kivinen
* Use last @ to separate user from host in the user@host@host:
*
* Revision 1.4 1997/03/19 17:37:37 kivinen
* If configured ssh_program isn't found try if ssh can be found
* in the same directory as scp and if so use that one. Fixed
* typo: execvp("ss", ...) -> execvp("ssh", ...).
*
* Revision 1.3 1996/11/24 08:24:36 kivinen
* Added code that will try to run ssh from path if builtin path
* fails.
*
* Revision 1.2 1996/11/07 18:17:56 kivinen
* Added #ifndef _PATH_CP around #define _PATH_CP.
*
* Revision 1.1.1.1 1996/02/18 21:38:11 ylo
* Imported ssh-1.2.13.
*
* Revision 1.9 1995/10/02 01:26:02 ylo
* Fixed code for no HAVE_FCHMOD case.
*
* Revision 1.8 1995/09/27 02:14:56 ylo
* Added support for SCO.
*
* Revision 1.7 1995/09/13 12:00:30 ylo
* Don't use -l unless user name is explicitly given (so that
* User works in .ssh/config).
*
* Revision 1.6 1995/08/18 22:55:53 ylo
* Added utimbuf kludges for NextStep.
* Added "-P port" option.
*
* Revision 1.5 1995/07/27 00:40:02 ylo
* Include utime.h only if it exists.
* Disable FallBackToRsh when running ssh from scp.
*
* Revision 1.4 1995/07/13 09:54:37 ylo
* Added Snabb's patches for IRIX 4 (SVR3) (HAVE_ST_BLKSIZE code).
*
* Revision 1.3 1995/07/13 01:37:41 ylo
* Added cvs log.
*
* $Endlog$
*/
/*
* Copyright (c) 1983, 1990, 1992, 1993, 1995
* 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.
*
* $Id: scp.c,v 1.14 1998/07/08 01:14:25 kivinen Exp $
*/
#ifndef lint
char scp_berkeley_copyright[] =
"@(#) Copyright (c) 1983, 1990, 1992, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#include "includes.h"
#include "ssh.h"
#include "xmalloc.h"
#ifdef HAVE_UTIME_H
#include <utime.h>
#if defined(_NEXT_SOURCE) && !defined(_POSIX_SOURCE) && !defined(RHAPSODY)
struct utimbuf {
time_t actime;
time_t modtime;
};
#endif /* _NEXT_SOURCE */
#else
struct utimbuf
{
long actime;
long modtime;
};
#endif
#ifndef _PATH_CP
#define _PATH_CP "cp"
#endif
#ifndef STDIN_FILENO
#define STDIN_FILENO 0
#endif
#ifndef STDOUT_FILENO
#define STDOUT_FILENO 1
#endif
#ifndef STDERR_FILENO
#define STDERR_FILENO 2
#endif
/* This is set to non-zero to enable verbose mode. */
int verbose = 0;
/* This is set to non-zero to enable statistics mode. */
#ifdef SCP_STATISTICS_ENABLED
int statistics = 1;
#else /* SCP_STATISTICS_ENABLED */
int statistics = 0;
#endif /* SCP_STATISTICS_ENABLED */
/* This is set to non-zero to enable printing statistics for each file */
#ifdef SCP_ALL_STATISTICS_ENABLED
int all_statistics = 1;
#else /* SCP_ALL_STATISTICS_ENABLED */
int all_statistics = 0;
#endif /* SCP_ALL_STATISTICS_ENABLED */
/* This is set to non-zero if compression is desired. */
int compress = 0;
/* This is set to non-zero if running in batch mode (that is, password
and passphrase queries are not allowed). */
int batchmode = 0;
/* This is to call ssh with argument -P (for using non-privileged
ports to get through some firewalls.) */
int use_privileged_port = 1;
/* This is set to the cipher type string if given on the command line. */
char *cipher = NULL;
/* This is set to the RSA authentication identity file name if given on
the command line. */
char *identity = NULL;
/* This is the port to use in contacting the remote site (is non-NULL). */
char *port = NULL;
char *ssh_program = SSH_PROGRAM;
#ifdef WITH_SCP_STATS
#define SOME_STATS_FILE stderr
#define ssh_max(a,b) (((a) > (b)) ? (a) : (b))
unsigned long statbytes = 0;
time_t stat_starttime = 0;
time_t stat_lasttime = 0;
double ratebs = 0.0;
void stats_fixlen(int bytes);
char *stat_eta(int secs);
#endif /* WITH_SCP_STATS */
/* Ssh options */
char **ssh_options = NULL;
int ssh_options_cnt = 0;
int ssh_options_alloc = 0;
/* This function executes the given command as the specified user on the given
host. This returns < 0 if execution fails, and >= 0 otherwise.
This assigns the input and output file descriptors on success. */
int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout)
{
int pin[2], pout[2], reserved[2];
if (verbose)
fprintf(stderr, "Executing: host %s, user %s, command %s\n",
host, remuser ? remuser : "(unspecified)", cmd);
/* Reserve two descriptors so that the real pipes won't get descriptors
0 and 1 because that will screw up dup2 below. */
pipe(reserved);
/* Create a socket pair for communicating with ssh. */
if (pipe(pin) < 0)
fatal("pipe: %s", strerror(errno));
if (pipe(pout) < 0)
fatal("pipe: %s", strerror(errno));
/* Free the reserved descriptors. */
close(reserved[0]);
close(reserved[1]);
/* For a child to execute the command on the remote host using ssh. */
if (fork() == 0)
{
char *args[256];
unsigned int i, j;
/* Child. */
close(pin[1]);
close(pout[0]);
dup2(pin[0], 0);
dup2(pout[1], 1);
close(pin[0]);
close(pout[1]);
i = 0;
args[i++] = ssh_program;
for(j = 0; j < ssh_options_cnt; j++)
{
args[i++] = "-o";
args[i++] = ssh_options[j];
if (i > 250)
fatal("Too many -o options (total number of arguments is more than 256)");
}
args[i++] = "-x";
args[i++] = "-a";
args[i++] = "-oFallBackToRsh no";
args[i++] = "-oClearAllForwardings yes";
if (verbose)
args[i++] = "-v";
if (compress)
args[i++] = "-C";
if (!use_privileged_port)
args[i++] = "-P";
if (batchmode)
args[i++] = "-oBatchMode yes";
if (cipher != NULL)
{
args[i++] = "-c";
args[i++] = cipher;
}
if (identity != NULL)
{
args[i++] = "-i";
args[i++] = identity;
}
if (port != NULL)
{
args[i++] = "-p";
args[i++] = port;
}
if (remuser != NULL)
{
args[i++] = "-l";
args[i++] = remuser;
}
args[i++] = host;
args[i++] = cmd;
args[i++] = NULL;
execvp(ssh_program, args);
if (errno == ENOENT)
{
args[0] = "ssh1";
execvp("ssh1", args);
}
perror(ssh_program);
exit(1);
}
/* Parent. Close the other side, and return the local side. */
close(pin[0]);
*fdout = pin[1];
close(pout[1]);
*fdin = pout[0];
return 0;
}
void fatal(const char *fmt, ...)
{
va_list ap;
char buf[1024];
va_start(ap, fmt);
vsprintf(buf, fmt, ap);
va_end(ap);
fprintf(stderr, "%s\n", buf);
exit(255);
}
/* This stuff used to be in BSD rcp extern.h. */
typedef struct {
int cnt;
char *buf;
} BUF;
extern int iamremote;
BUF *allocbuf(BUF *, int, int);
char *colon(char *);
void lostconn(int);
void nospace(void);
int okname(char *);
void run_err(const char *, ...);
void verifydir(char *);
/* Stuff from BSD rcp.c continues. */
struct passwd *pwd;
uid_t userid;
int errs, remin, remout;
int pflag, iamremote, iamrecursive, targetshouldbedirectory;
#define CMDNEEDS 64
char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
int response(void);
void rsource(char *, struct stat *);
void sink(int, char *[]);
void source(int, char *[]);
void tolocal(int, char *[]);
void toremote(char *, int, char *[]);
void usage(void);
int
main(argc, argv)
int argc;
char *argv[];
{
int ch, fflag, tflag;
char *targ;
extern char *optarg;
extern int optind;
struct stat st;
if (stat(ssh_program, &st) < 0)
{
int len;
len = strlen(argv[0]);
if (len >= 3 && strcmp(argv[0] + len - 3, "scp") == 0)
{
char *p;
p = xstrdup(argv[0]);
strcpy(p + len - 3, "ssh");
if (stat(p, &st) < 0)
xfree(p);
else
ssh_program = p;
}
}
if (getenv("SSH_SCP_STATS") != NULL)
{
statistics = 1;
}
if (getenv("SSH_ALL_SCP_STATS") != NULL)
{
all_statistics = 1;
}
if (getenv("SSH_NO_SCP_STATS") != NULL)
{
statistics = 0;
}
if (getenv("SSH_NO_ALL_SCP_STATS") != NULL)
{
all_statistics = 0;
}
if (!isatty(fileno(stdout)))
statistics = 0;
fflag = tflag = 0;
while ((ch = getopt(argc, argv, "aAqQdfprtvBCLc:i:P:o:S:")) != EOF)
switch(ch) { /* User-visible flags. */
case 'S':
ssh_program = optarg;
break;
case 'a':
all_statistics = 1;
break;
case 'A':
all_statistics = 0;
break;
case 'q':
statistics = 0;
break;
case 'Q':
statistics = 1;
break;
case 'p':
pflag = 1;
break;
case 'P':
port = optarg;
break;
case 'o':
if (ssh_options_cnt >= ssh_options_alloc)
{
if (ssh_options_alloc == 0)
{
ssh_options_alloc = 10;
ssh_options = xmalloc(sizeof(char *) *
ssh_options_alloc);
}
else
{
ssh_options_alloc += 10;
ssh_options = xrealloc(ssh_options,
sizeof(char *) *
ssh_options_alloc);
}
}
ssh_options[ssh_options_cnt++] = optarg;
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 'c':
cipher = optarg;
break;
case 'i':
identity = optarg;
break;
case 'v':
verbose = 1;
break;
case 'B':
batchmode = 1;
statistics = 0;
break;
case 'L':
/* -L ("large local ports" or something) means
ssh -P. Since both -p and -P are already used
such a non-intuitive letter had to be used. */
use_privileged_port = 0;
break;
case 'C':
compress = 1;
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if ((pwd = getpwuid(userid = getuid())) == NULL)
fatal("unknown user %d", (int)userid);
remin = STDIN_FILENO;
remout = STDOUT_FILENO;
if (fflag) { /* Follow "protocol", send data. */
(void)response();
source(argc, argv);
exit(errs != 0);
}
if (tflag) { /* Receive data. */
sink(argc, argv);
exit(errs != 0);
}
if (argc < 2)
usage();
if (argc > 2)
targetshouldbedirectory = 1;
remin = remout = -1;
/* Command to be executed on remote system using "ssh". */
(void)sprintf(cmd, "scp%s%s%s%s", verbose ? " -v" : "",
iamrecursive ? " -r" : "", pflag ? " -p" : "",
targetshouldbedirectory ? " -d" : "");
(void)signal(SIGPIPE, lostconn);
if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */
{
toremote(targ, argc, argv);
#ifdef WITH_SCP_STATS
if (!iamremote && statistics)
{
fprintf(SOME_STATS_FILE,"\n");
}
#endif /* WITH_SCP_STATS */
}
else
{
tolocal(argc, argv); /* Dest is local host. */
#ifdef WITH_SCP_STATS
if (!iamremote && statistics)
{
fprintf(SOME_STATS_FILE,"\n");
}
#endif /* WITH_SCP_STATS */
if (targetshouldbedirectory)
verifydir(argv[argc - 1]);
}
exit(errs != 0);
}
void
toremote(targ, argc, argv)
char *targ, *argv[];
int argc;
{
int i, len;
char *bp, *host, *src, *suser, *thost, *tuser;
*targ++ = 0;
if (*targ == 0)
targ = ".";
if ((thost = strrchr(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 */
int j, options_len;
char *options;
options_len = 0;
for(j = 0; j < ssh_options_cnt; j++)
options_len = 5 + strlen(ssh_options[j]);
options = xmalloc(options_len + 1);
options[0] = '\0';
for(j = 0; j < ssh_options_cnt; j++)
{
strcat(options, "-o'");
strcat(options, ssh_options[j]);
strcat(options, "' ");
}
*src++ = 0;
if (*src == 0)
src = ".";
host = strrchr(argv[i], '@');
len = strlen(ssh_program) + strlen(argv[i]) +
strlen(src) + (tuser ? strlen(tuser) : 0) +
strlen(thost) + strlen(targ) + CMDNEEDS + 32 +
options_len;
bp = xmalloc(len);
if (host) {
*host++ = 0;
suser = argv[i];
if (*suser == '\0')
suser = pwd->pw_name;
else if (!okname(suser))
continue;
(void)sprintf(bp,
"%s%s %s -x -o'FallBackToRsh no' -o'ClearAllForwardings yes' -n -l %s %s %s %s '%s%s%s:%s'",
ssh_program, verbose ? " -v" : "", options,
suser, host, cmd, src,
tuser ? tuser : "", tuser ? "@" : "",
thost, targ);
} else
(void)sprintf(bp,
"exec %s%s %s -x -o'FallBackToRsh no' -o'ClearAllForwardings yes' -n %s %s %s '%s%s%s:%s'",
ssh_program, verbose ? " -v" : "", options,
argv[i], cmd, src,
tuser ? tuser : "", tuser ? "@" : "",
thost, targ);
if (verbose)
fprintf(stderr, "Executing: %s\n", bp);
if (system(bp)) errs++;
(void)xfree(bp);
} else { /* local to remote */
if (remin == -1) {
len = strlen(targ) + CMDNEEDS + 20;
bp = xmalloc(len);
(void)sprintf(bp, "%s -t %s", cmd, targ);
host = thost;
if (do_cmd(host, tuser,
bp, &remin, &remout) < 0)
exit(1);
if (response() < 0)
exit(1);
(void)xfree(bp);
}
source(1, argv+i);
}
}
}
void
tolocal(argc, argv)
int argc;
char *argv[];
{
int i, len;
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;
bp = xmalloc(len);
(void)sprintf(bp, "exec %s%s%s %s %s", _PATH_CP,
iamrecursive ? " -r" : "", pflag ? " -p" : "",
argv[i], argv[argc - 1]);
if (verbose)
fprintf(stderr, "Executing: %s\n", bp);
if (system(bp))
++errs;
(void)xfree(bp);
continue;
}
*src++ = 0;
if (*src == 0)
src = ".";
if ((host = strrchr(argv[i], '@')) == NULL) {
host = argv[i];
suser = NULL;
} else {
*host++ = 0;
suser = argv[i];
if (*suser == '\0')
suser = pwd->pw_name;
else if (!okname(suser))
continue;
}
len = strlen(src) + CMDNEEDS + 20;
bp = xmalloc(len);
(void)sprintf(bp, "%s -f %s", cmd, src);
if (do_cmd(host, suser, bp, &remin, &remout) < 0) {
(void)xfree(bp);
++errs;
continue;
}
xfree(bp);
sink(1, argv + argc - 1);
(void)close(remin);
remin = remout = -1;
}
}
void
source(argc, argv)
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[2048];
for (indx = 0; indx < argc; ++indx) {
name = argv[indx];
if ((fd = open(name, O_RDONLY, 0)) < 0)
goto syserr;
if (fstat(fd, &stb) < 0) {
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.
*/
(void)sprintf(buf, "T%lu 0 %lu 0\n",
(unsigned long)stb.st_mtime,
(unsigned long)stb.st_atime);
(void)write(remout, buf, strlen(buf));
if (response() < 0)
goto next;
}
#define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
(void)sprintf(buf, "C%04o %lu %s\n",
(unsigned int)(stb.st_mode & FILEMODEMASK),
(unsigned long)stb.st_size,
last);
if (verbose)
{
fprintf(stderr, "Sending file modes: %s", buf);
fflush(stderr);
}
(void)write(remout, buf, strlen(buf));
if (response() < 0)
goto next;
if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) {
next: (void)close(fd);
continue;
}
#ifdef WITH_SCP_STATS
if (!iamremote && statistics)
{
statbytes = 0;
ratebs = 0.0;
stat_starttime = time(NULL);
}
#endif /* WITH_SCP_STATS */
/* 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)
{
(void)write(remout, bp->buf, amt);
#ifdef WITH_SCP_STATS
if (!iamremote && statistics)
{
if ((time(NULL) - stat_lasttime) > 0)
{
int bwritten;
bwritten = fprintf(SOME_STATS_FILE,
"\r%s : ERROR..continuing to end of file anyway", last);
stats_fixlen(bwritten);
fflush(SOME_STATS_FILE);
stat_lasttime = time(NULL);
}
}
#endif /* WITH_SCP_STATS */
}
else {
result = write(remout, bp->buf, amt);
if (result != amt)
haderr = result >= 0 ? EIO : errno;
#ifdef WITH_SCP_STATS
if (!iamremote && statistics)
{
statbytes += result;
/* At least one second delay between
outputs, or if finished */
if (time(NULL) - stat_lasttime > 0 ||
(result + i) == stb.st_size)
{
int bwritten;
if (time(NULL) == stat_starttime)
{
stat_starttime -= 1;
}
ratebs = ssh_max(1.0,
(double) statbytes /
(time(NULL) -
stat_starttime));
bwritten =
fprintf(SOME_STATS_FILE,
"\r%-25.25s | %10ld KB | %5.1f kB/s | ETA: %s | %3d%%",
last,
statbytes / 1024,
ratebs / 1024,
stat_eta((int) ((stb.st_size
- statbytes)
/ ratebs)),
(int) (100.0 *
(double) statbytes /
stb.st_size));
if (all_statistics && (result + i) ==
stb.st_size)
bwritten += fprintf(SOME_STATS_FILE,
"\n");
stats_fixlen(bwritten);
stat_lasttime = time(NULL);
}
}
#endif /* WITH_SCP_STATS */
}
}
if (close(fd) < 0 && !haderr)
haderr = errno;
if (!haderr)
(void)write(remout, "", 1);
else
run_err("%s: %s", name, strerror(haderr));
(void)response();
}
}
void
rsource(name, statp)
char *name;
struct stat *statp;
{
DIR *dirp;
struct dirent *dp;
char *last, *vect[1], path[1100];
if (!(dirp = opendir(name))) {
run_err("%s: %s", name, strerror(errno));
return;
}
last = strrchr(name, '/');
if (last == 0)
last = name;
else
last++;
if (pflag) {
(void)sprintf(path, "T%lu 0 %lu 0\n",
(unsigned long)statp->st_mtime,
(unsigned long)statp->st_atime);
(void)write(remout, path, strlen(path));
if (response() < 0) {
closedir(dirp);
return;
}
}
(void)sprintf(path,
"D%04o %d %.1024s\n", (unsigned int)(statp->st_mode & FILEMODEMASK),
0, last);
if (verbose)
fprintf(stderr, "Entering directory: %s", path);
(void)write(remout, 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) >= sizeof(path) - 1) {
run_err("%s/%s: name too long", name, dp->d_name);
continue;
}
(void)sprintf(path, "%s/%s", name, dp->d_name);
vect[0] = path;
source(1, vect);
}
(void)closedir(dirp);
(void)write(remout, "E\n", 2);
(void)response();
}
void
sink(argc, argv)
int argc;
char *argv[];
{
static BUF buffer;
struct stat stb;
enum { YES, NO, DISPLAYED } wrerr;
BUF *bp;
off_t i, j, size;
int amt, count, exists, first, mask, mode, ofd, omode;
int setimes, targisdir, wrerrno = 0;
char ch, *cp, *np, *targ, *why, *vect[1], buf[2048];
struct utimbuf ut;
int dummy_usec;
#ifdef WITH_SCP_STATS
char *statslast;
#endif /* WITH_SCP_STATS */
#define SCREWUP(str) { why = str; goto screwup; }
setimes = targisdir = 0;
mask = umask(0);
if (!pflag)
(void)umask(mask);
if (argc != 1) {
run_err("ambiguous target");
exit(1);
}
targ = *argv;
if (targetshouldbedirectory)
verifydir(targ);
(void)write(remout, "", 1);
if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
targisdir = 1;
for (first = 1;; first = 0) {
cp = buf;
if (read(remin, cp, 1) <= 0)
return;
if (*cp++ == '\n')
SCREWUP("unexpected <newline>");
do {
if (read(remin, &ch, sizeof(ch)) != sizeof(ch))
SCREWUP("lost connection");
*cp++ = ch;
} while (cp < &buf[sizeof(buf) - 1] && ch != '\n');
*cp = 0;
if (buf[0] == '\01' || buf[0] == '\02') {
if (iamremote == 0)
(void)write(STDERR_FILENO,
buf + 1, strlen(buf + 1));
if (buf[0] == '\02')
exit(1);
++errs;
continue;
}
if (buf[0] == 'E') {
(void)write(remout, "", 1);
return;
}
if (ch == '\n')
*--cp = 0;
#define getnum(t) (t) = 0; \
while (*cp >= '0' && *cp <= '9') (t) = (t) * 10 + (*cp++ - '0');
cp = buf;
if (*cp == 'T') {
setimes++;
cp++;
getnum(ut.modtime);
if (*cp++ != ' ')
SCREWUP("mtime.sec not delimited");
getnum(dummy_usec);
if (*cp++ != ' ')
SCREWUP("mtime.usec not delimited");
getnum(ut.actime);
if (*cp++ != ' ')
SCREWUP("atime.sec not delimited");
getnum(dummy_usec);
if (*cp++ != '\0')
SCREWUP("atime.usec not delimited");
(void)write(remout, "", 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; *cp >= '0' && *cp <= '9';)
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)
namebuf = xmalloc(need);
(void)sprintf(namebuf, "%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)
(void)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) {
setimes = 0;
if (utime(np, &ut) < 0)
run_err("%s: set times: %s",
np, strerror(errno));
}
if (mod_flag)
(void)chmod(np, mode);
continue;
}
omode = mode;
mode |= S_IWRITE;
#ifdef HAVE_FTRUNCATE
/* Don't use O_TRUNC so the file doesn't get corrupted if
copying on itself. */
ofd = open(np, O_WRONLY|O_CREAT, mode);
#else /* HAVE_FTRUNCATE */
ofd = open(np, O_WRONLY|O_CREAT|O_TRUNC, mode);
#endif /* HAVE_FTRUNCATE */
if (ofd < 0) {
bad: run_err("%s: %s", np, strerror(errno));
continue;
}
(void)write(remout, "", 1);
if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) {
(void)close(ofd);
continue;
}
cp = bp->buf;
wrerr = NO;
#ifdef WITH_SCP_STATS
if (!iamremote && statistics)
{
statbytes = 0;
ratebs = 0.0;
stat_starttime = time(NULL);
if ((statslast = strrchr(np, '/')) == NULL)
statslast = np;
else
++statslast;
}
#endif /* WITH_SCP_STATS */
for (count = i = 0; i < size; i += 4096) {
amt = 4096;
if (i + amt > size)
amt = size - i;
count += amt;
do {
j = read(remin, cp, amt);
if (j <= 0) {
run_err("%s", j ? strerror(errno) :
"dropped connection");
exit(1);
}
#ifdef WITH_SCP_STATS
if (!iamremote && statistics)
{
int bwritten;
statbytes += j;
if (time(NULL) - stat_lasttime > 0 ||
(j + i) == size) {
if (time(NULL) == stat_starttime)
{
stat_starttime -= 1;
}
ratebs = ssh_max(1.0,
(double)
statbytes /
(time(NULL) -
stat_starttime));
bwritten =
fprintf(SOME_STATS_FILE,
"\r%-25.25s | %10ld KB | %5.1f kB/s | ETA: %s | %3d%%",
statslast,
statbytes / 1024,
ratebs / 1024,
stat_eta((int)
((size - statbytes)
/ ratebs)),
100 * statbytes / size);
if (all_statistics && (i + j) == size)
bwritten += fprintf(SOME_STATS_FILE, "\n");
stats_fixlen(bwritten);
stat_lasttime = time(NULL);
}
}
#endif /* WITH_SCP_STATS */
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;
}
#ifdef HAVE_FTRUNCATE
if (ftruncate(ofd, size)) {
run_err("%s: truncate: %s", np, strerror(errno));
wrerr = DISPLAYED;
}
#endif /* HAVE_FTRUNCATE */
if (pflag) {
if (exists || omode != mode)
#ifdef HAVE_FCHMOD
if (fchmod(ofd, omode))
#else /* HAVE_FCHMOD */
if (chmod(np, omode))
#endif /* HAVE_FCHMOD */
run_err("%s: set mode: %s",
np, strerror(errno));
} else {
if (!exists && omode != mode)
#ifdef HAVE_FCHMOD
if (fchmod(ofd, omode & ~mask))
#else /* HAVE_FCHMOD */
if (chmod(np, omode & ~mask))
#endif /* HAVE_FCHMOD */
run_err("%s: set mode: %s",
np, strerror(errno));
}
(void)close(ofd);
(void)response();
if (setimes && wrerr == NO) {
setimes = 0;
if (utime(np, &ut) < 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:
(void)write(remout, "", 1);
break;
case DISPLAYED:
break;
}
}
screwup:
run_err("protocol error: %s", why);
exit(1);
}
int
response(void)
{
char ch, *cp, resp, rbuf[2048];
if (read(remin, &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 (read(remin, &ch, sizeof(ch)) != sizeof(ch))
lostconn(0);
*cp++ = ch;
} while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
if (!iamremote)
(void)write(STDERR_FILENO, rbuf, cp - rbuf);
++errs;
if (resp == 1)
return (-1);
exit(1);
}
/* NOTREACHED */
}
void
usage(void)
{
(void)fprintf(stderr,
"usage: scp [-qQaAprvBCL] [-S path-to-ssh] [-o ssh-options] [-P port] [-c cipher] [-i identity] f1 f2; or: scp [options] f1 ... fn directory\n");
exit(1);
}
void
run_err(const char *fmt, ...)
{
static FILE *fp;
va_list ap;
va_start(ap, fmt);
++errs;
if (fp == NULL && !(fp = fdopen(remout, "w")))
return;
(void)fprintf(fp, "%c", 0x01);
(void)fprintf(fp, "scp: ");
(void)vfprintf(fp, fmt, ap);
(void)fprintf(fp, "\n");
(void)fflush(fp);
if (!iamremote)
{
vfprintf(stderr, fmt, ap);
fprintf(stderr, "\n");
}
va_end(ap);
}
/* Stuff below is from BSD rcp util.c. */
/*-
* Copyright (c) 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.
*
* $Id: scp.c,v 1.14 1998/07/08 01:14:25 kivinen Exp $
*/
char *
colon(cp)
char *cp;
{
if (*cp == ':') /* Leading colon is part of file name. */
return (0);
for (; *cp; ++cp) {
if (*cp == ':')
return (cp);
if (*cp == '/')
return (0);
}
return (0);
}
void
verifydir(cp)
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);
}
int
okname(cp0)
char *cp0;
{
int c;
char *cp;
cp = cp0;
do {
c = *cp;
if (c & 0200)
goto bad;
if (!isalpha(c) && !isdigit(c) && c != '_' && c != '-' &&
c != '@' && c != '%' && c != '.' && c != '/')
goto bad;
} while (*++cp);
return (1);
bad: fprintf(stderr, "%s: invalid user name", cp0);
return (0);
}
BUF *
allocbuf(bp, fd, blksize)
BUF *bp;
int fd, blksize;
{
size_t size;
#ifdef HAVE_ST_BLKSIZE
struct stat stb;
if (fstat(fd, &stb) < 0) {
run_err("fstat: %s", strerror(errno));
return (0);
}
if (stb.st_blksize == 0)
size = blksize;
else
size = blksize + (stb.st_blksize - blksize % stb.st_blksize) %
stb.st_blksize;
#else /* HAVE_ST_BLKSIZE */
size = blksize;
#endif /* HAVE_ST_BLKSIZE */
if (bp->cnt >= size)
return (bp);
if (bp->buf == NULL)
bp->buf = xmalloc(size);
else
bp->buf = xrealloc(bp->buf, size);
bp->cnt = size;
return (bp);
}
void
lostconn(signo)
int signo;
{
if (!iamremote)
fprintf(stderr, "lost connection\n");
exit(1);
}
#ifdef WITH_SCP_STATS
void stats_fixlen(int bwritten)
{
char rest[80];
int i = 0;
while (bwritten++ < 77)
{
rest[i++]=' ';
}
rest[i]='\0';
fputs(rest, SOME_STATS_FILE);
fflush(SOME_STATS_FILE);
}
char *stat_eta(int secs)
{
static char stat_result[9];
int hours, mins;
hours = secs / 3600;
secs %= 3600;
mins = secs / 60;
secs %= 60;
sprintf(stat_result, "%02d:%02d:%02d", hours, mins, secs);
return(stat_result);
}
#endif /* WITH_SCP_STATS */
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.