2 * scp.c - Scp (Secure Copy) client for PuTTY.
3 * Joris van Rantwijk, Simon Tatham
5 * This is mainly based on ssh-1.2.26/scp.c by Timo Rinne & Tatu Ylonen.
6 * They, in turn, used stuff from BSD rcp.
8 * (SGT, 2001-09-10: Joris van Rantwijk assures me that although
9 * this file as originally submitted was inspired by, and
10 * _structurally_ based on, ssh-1.2.26's scp.c, there wasn't any
11 * actual code duplicated, so the above comment shouldn't give rise
12 * to licensing issues.)
22 #define PUTTY_DO_GLOBALS
30 static int verbose
= 0;
31 static int recursive
= 0;
32 static int preserve
= 0;
33 static int targetshouldbedirectory
= 0;
34 static int statistics
= 1;
35 static int prev_stats_len
= 0;
36 static int scp_unsafe_mode
= 0;
38 static int gui_mode
= 0;
39 static int try_scp
= 1;
40 static int try_sftp
= 1;
41 static int main_cmd_is_sftp
= 0;
42 static int fallback_cmd_is_sftp
= 0;
43 static int using_sftp
= 0;
46 static void *backhandle
;
49 static void source(char *src
);
50 static void rsource(char *src
);
51 static void sink(char *targ
, char *src
);
54 * The maximum amount of queued data we accept before we stop and
55 * wait for the server to process some.
57 #define MAX_SCP_BUFSIZE 16384
59 void ldisc_send(void *handle
, char *buf
, int len
, int interactive
)
62 * This is only here because of the calls to ldisc_send(NULL,
63 * 0) in ssh.c. Nothing in PSCP actually needs to use the ldisc
64 * as an ldisc. So if we get called with any real data, I want
70 static void tell_char(FILE * stream
, char c
)
75 gui_send_char(stream
== stderr
, c
);
78 static void tell_str(FILE * stream
, char *str
)
82 for (i
= 0; i
< strlen(str
); ++i
)
83 tell_char(stream
, str
[i
]);
86 static void tell_user(FILE * stream
, char *fmt
, ...)
91 str
= dupvprintf(fmt
, ap
);
93 str2
= dupcat(str
, "\n", NULL
);
95 tell_str(stream
, str2
);
100 * Print an error message and perform a fatal exit.
102 void fatalbox(char *fmt
, ...)
107 str
= dupvprintf(fmt
, ap
);
108 str2
= dupcat("Fatal: ", str
, "\n", NULL
);
111 tell_str(stderr
, str2
);
116 gui_send_errcount(list
, errs
);
120 void modalfatalbox(char *fmt
, ...)
125 str
= dupvprintf(fmt
, ap
);
126 str2
= dupcat("Fatal: ", str
, "\n", NULL
);
129 tell_str(stderr
, str2
);
134 gui_send_errcount(list
, errs
);
138 void connection_fatal(void *frontend
, char *fmt
, ...)
143 str
= dupvprintf(fmt
, ap
);
144 str2
= dupcat("Fatal: ", str
, "\n", NULL
);
147 tell_str(stderr
, str2
);
152 gui_send_errcount(list
, errs
);
158 * In pscp, all agent requests should be synchronous, so this is a
161 void agent_schedule_callback(void (*callback
)(void *, void *, int),
162 void *callback_ctx
, void *data
, int len
)
164 assert(!"We shouldn't be here");
168 * Receive a block of data from the SSH link. Block until all data
171 * To do this, we repeatedly call the SSH protocol module, with our
172 * own trap in from_backend() to catch the data that comes back. We
173 * do this until we have enough data.
176 static unsigned char *outptr
; /* where to put the data */
177 static unsigned outlen
; /* how much data required */
178 static unsigned char *pending
= NULL
; /* any spare data */
179 static unsigned pendlen
= 0, pendsize
= 0; /* length and phys. size of buffer */
180 int from_backend(void *frontend
, int is_stderr
, const char *data
, int datalen
)
182 unsigned char *p
= (unsigned char *) data
;
183 unsigned len
= (unsigned) datalen
;
186 * stderr data is just spouted to local stderr and otherwise
191 fwrite(data
, 1, len
, stderr
);
196 * If this is before the real session begins, just return.
201 if ((outlen
> 0) && (len
> 0)) {
202 unsigned used
= outlen
;
205 memcpy(outptr
, p
, used
);
213 if (pendsize
< pendlen
+ len
) {
214 pendsize
= pendlen
+ len
+ 4096;
215 pending
= sresize(pending
, pendsize
, unsigned char);
217 fatalbox("Out of memory");
219 memcpy(pending
+ pendlen
, p
, len
);
225 static int ssh_scp_recv(unsigned char *buf
, int len
)
231 * See if the pending-input block contains some of what we
235 unsigned pendused
= pendlen
;
236 if (pendused
> outlen
)
238 memcpy(outptr
, pending
, pendused
);
239 memmove(pending
, pending
+ pendused
, pendlen
- pendused
);
253 if (ssh_sftp_loop_iteration() < 0)
261 * Loop through the ssh connection and authentication process.
263 static void ssh_scp_init(void)
265 while (!back
->sendok(backhandle
)) {
266 if (ssh_sftp_loop_iteration() < 0)
270 /* Work out which backend we ended up using. */
271 if (!ssh_fallback_cmd(backhandle
))
272 using_sftp
= main_cmd_is_sftp
;
274 using_sftp
= fallback_cmd_is_sftp
;
278 tell_user(stderr
, "Using SFTP");
280 tell_user(stderr
, "Using SCP1");
285 * Print an error message and exit after closing the SSH link.
287 static void bump(char *fmt
, ...)
292 str
= dupvprintf(fmt
, ap
);
294 str2
= dupcat(str
, "\n", NULL
);
296 tell_str(stderr
, str2
);
300 if (back
!= NULL
&& back
->socket(backhandle
) != NULL
) {
302 back
->special(backhandle
, TS_EOF
);
303 ssh_scp_recv((unsigned char *) &ch
, 1);
307 gui_send_errcount(list
, errs
);
313 * Open an SSH connection to user@host and execute cmd.
315 static void do_cmd(char *host
, char *user
, char *cmd
)
321 if (host
== NULL
|| host
[0] == '\0')
322 bump("Empty host name");
325 * If we haven't loaded session details already (e.g., from -load),
326 * try looking for a session called "host".
328 if (!loaded_session
) {
329 /* Try to load settings for `host' into a temporary config */
332 do_defaults(host
, &cfg2
);
333 if (cfg2
.host
[0] != '\0') {
334 /* Settings present and include hostname */
335 /* Re-load data into the real config. */
336 do_defaults(host
, &cfg
);
338 /* Session doesn't exist or mention a hostname. */
339 /* Use `host' as a bare hostname. */
340 strncpy(cfg
.host
, host
, sizeof(cfg
.host
) - 1);
341 cfg
.host
[sizeof(cfg
.host
) - 1] = '\0';
344 /* Patch in hostname `host' to session details. */
345 strncpy(cfg
.host
, host
, sizeof(cfg
.host
) - 1);
346 cfg
.host
[sizeof(cfg
.host
) - 1] = '\0';
350 * Force use of SSH. (If they got the protocol wrong we assume the
351 * port is useless too.)
353 if (cfg
.protocol
!= PROT_SSH
) {
354 cfg
.protocol
= PROT_SSH
;
359 * Enact command-line overrides.
361 cmdline_run_saved(&cfg
);
364 * Trim leading whitespace off the hostname if it's there.
367 int space
= strspn(cfg
.host
, " \t");
368 memmove(cfg
.host
, cfg
.host
+space
, 1+strlen(cfg
.host
)-space
);
371 /* See if host is of the form user@host */
372 if (cfg
.host
[0] != '\0') {
373 char *atsign
= strrchr(cfg
.host
, '@');
374 /* Make sure we're not overflowing the user field */
376 if (atsign
- cfg
.host
< sizeof cfg
.username
) {
377 strncpy(cfg
.username
, cfg
.host
, atsign
- cfg
.host
);
378 cfg
.username
[atsign
- cfg
.host
] = '\0';
380 memmove(cfg
.host
, atsign
+ 1, 1 + strlen(atsign
+ 1));
385 * Trim a colon suffix off the hostname if it's there.
387 cfg
.host
[strcspn(cfg
.host
, ":")] = '\0';
390 * Remove any remaining whitespace from the hostname.
394 while (cfg
.host
[p2
] != '\0') {
395 if (cfg
.host
[p2
] != ' ' && cfg
.host
[p2
] != '\t') {
396 cfg
.host
[p1
] = cfg
.host
[p2
];
405 if (user
!= NULL
&& user
[0] != '\0') {
406 strncpy(cfg
.username
, user
, sizeof(cfg
.username
) - 1);
407 cfg
.username
[sizeof(cfg
.username
) - 1] = '\0';
408 } else if (cfg
.username
[0] == '\0') {
409 user
= get_username();
411 bump("Empty user name");
414 tell_user(stderr
, "Guessing user name: %s", user
);
415 strncpy(cfg
.username
, user
, sizeof(cfg
.username
) - 1);
416 cfg
.username
[sizeof(cfg
.username
) - 1] = '\0';
422 * Disable scary things which shouldn't be enabled for simple
423 * things like SCP and SFTP: agent forwarding, port forwarding,
428 cfg
.portfwd
[0] = cfg
.portfwd
[1] = '\0';
431 * Set up main and possibly fallback command depending on
432 * options specified by user.
433 * Attempt to start the SFTP subsystem as a first choice,
434 * falling back to the provided scp command if that fails.
436 cfg
.remote_cmd_ptr2
= NULL
;
438 /* First choice is SFTP subsystem. */
439 main_cmd_is_sftp
= 1;
440 strcpy(cfg
.remote_cmd
, "sftp");
441 cfg
.ssh_subsys
= TRUE
;
443 /* Fallback is to use the provided scp command. */
444 fallback_cmd_is_sftp
= 0;
445 cfg
.remote_cmd_ptr2
= cmd
;
446 cfg
.ssh_subsys2
= FALSE
;
448 /* Since we're not going to try SCP, we may as well try
449 * harder to find an SFTP server, since in the current
450 * implementation we have a spare slot. */
451 fallback_cmd_is_sftp
= 1;
452 /* see psftp.c for full explanation of this kludge */
453 cfg
.remote_cmd_ptr2
=
454 "test -x /usr/lib/sftp-server && exec /usr/lib/sftp-server\n"
455 "test -x /usr/local/lib/sftp-server && exec /usr/local/lib/sftp-server\n"
457 cfg
.ssh_subsys2
= FALSE
;
460 /* Don't try SFTP at all; just try the scp command. */
461 main_cmd_is_sftp
= 0;
462 cfg
.remote_cmd_ptr
= cmd
;
463 cfg
.ssh_subsys
= FALSE
;
469 err
= back
->init(NULL
, &backhandle
, &cfg
, cfg
.host
, cfg
.port
, &realhost
,
470 0, cfg
.tcp_keepalives
);
472 bump("ssh_init: %s", err
);
473 logctx
= log_init(NULL
, &cfg
);
474 back
->provide_logctx(backhandle
, logctx
);
475 console_provide_logctx(logctx
);
477 if (verbose
&& realhost
!= NULL
)
478 tell_user(stderr
, "Connected to %s\n", realhost
);
483 * Update statistic information about current file.
485 static void print_stats(char *name
, unsigned long size
, unsigned long done
,
486 time_t start
, time_t now
)
495 elap
= (unsigned long) difftime(now
, start
);
498 ratebs
= (float) done
/ elap
;
500 ratebs
= (float) done
;
505 eta
= (unsigned long) ((size
- done
) / ratebs
);
506 etastr
= dupprintf("%02ld:%02ld:%02ld",
507 eta
/ 3600, (eta
% 3600) / 60, eta
% 60);
509 pct
= (int) (100 * (done
* 1.0 / size
));
512 gui_update_stats(name
, size
, pct
, elap
, done
, eta
,
513 (unsigned long) ratebs
);
515 len
= printf("\r%-25.25s | %10ld kB | %5.1f kB/s | ETA: %8s | %3d%%",
516 name
, done
/ 1024, ratebs
/ 1024.0, etastr
, pct
);
517 if (len
< prev_stats_len
)
518 printf("%*s", prev_stats_len
- len
, "");
519 prev_stats_len
= len
;
531 * Find a colon in str and return a pointer to the colon.
532 * This is used to separate hostname from filename.
534 static char *colon(char *str
)
536 /* We ignore a leading colon, since the hostname cannot be
537 empty. We also ignore a colon as second character because
538 of filenames like f:myfile.txt. */
539 if (str
[0] == '\0' || str
[0] == ':' || str
[1] == ':')
541 while (*str
!= '\0' && *str
!= ':' && *str
!= '/' && *str
!= '\\')
550 * Return a pointer to the portion of str that comes after the last
551 * slash (or backslash or colon, if `local' is TRUE).
553 static char *stripslashes(char *str
, int local
)
558 p
= strchr(str
, ':');
562 p
= strrchr(str
, '/');
566 p
= strrchr(str
, '\\');
574 * Determine whether a string is entirely composed of dots.
576 static int is_dots(char *str
)
578 return str
[strspn(str
, ".")] == '\0';
582 * Wait for a response from the other side.
583 * Return 0 if ok, -1 if error.
585 static int response(void)
587 char ch
, resp
, rbuf
[2048];
590 if (ssh_scp_recv((unsigned char *) &resp
, 1) <= 0)
591 bump("Lost connection");
601 case 2: /* fatal error */
603 if (ssh_scp_recv((unsigned char *) &ch
, 1) <= 0)
604 bump("Protocol error: Lost connection");
606 } while (p
< sizeof(rbuf
) && ch
!= '\n');
609 tell_user(stderr
, "%s\n", rbuf
);
617 int sftp_recvdata(char *buf
, int len
)
619 return ssh_scp_recv((unsigned char *) buf
, len
);
621 int sftp_senddata(char *buf
, int len
)
623 back
->send(backhandle
, buf
, len
);
627 /* ----------------------------------------------------------------------
628 * sftp-based replacement for the hacky `pscp -ls'.
630 static int sftp_ls_compare(const void *av
, const void *bv
)
632 const struct fxp_name
*a
= (const struct fxp_name
*) av
;
633 const struct fxp_name
*b
= (const struct fxp_name
*) bv
;
634 return strcmp(a
->filename
, b
->filename
);
636 void scp_sftp_listdir(char *dirname
)
638 struct fxp_handle
*dirh
;
639 struct fxp_names
*names
;
640 struct fxp_name
*ournames
;
641 struct sftp_packet
*pktin
;
642 struct sftp_request
*req
, *rreq
;
643 int nnames
, namesize
;
647 tell_user(stderr
, "unable to initialise SFTP: %s", fxp_error());
652 printf("Listing directory %s\n", dirname
);
654 sftp_register(req
= fxp_opendir_send(dirname
));
655 rreq
= sftp_find_request(pktin
= sftp_recv());
657 dirh
= fxp_opendir_recv(pktin
, rreq
);
660 printf("Unable to open %s: %s\n", dirname
, fxp_error());
662 nnames
= namesize
= 0;
667 sftp_register(req
= fxp_readdir_send(dirh
));
668 rreq
= sftp_find_request(pktin
= sftp_recv());
670 names
= fxp_readdir_recv(pktin
, rreq
);
673 if (fxp_error_type() == SSH_FX_EOF
)
675 printf("Reading directory %s: %s\n", dirname
, fxp_error());
678 if (names
->nnames
== 0) {
679 fxp_free_names(names
);
683 if (nnames
+ names
->nnames
>= namesize
) {
684 namesize
+= names
->nnames
+ 128;
685 ournames
= sresize(ournames
, namesize
, struct fxp_name
);
688 for (i
= 0; i
< names
->nnames
; i
++)
689 ournames
[nnames
++] = names
->names
[i
];
690 names
->nnames
= 0; /* prevent free_names */
691 fxp_free_names(names
);
693 sftp_register(req
= fxp_close_send(dirh
));
694 rreq
= sftp_find_request(pktin
= sftp_recv());
696 fxp_close_recv(pktin
, rreq
);
699 * Now we have our filenames. Sort them by actual file
700 * name, and then output the longname parts.
702 qsort(ournames
, nnames
, sizeof(*ournames
), sftp_ls_compare
);
707 for (i
= 0; i
< nnames
; i
++)
708 printf("%s\n", ournames
[i
].longname
);
712 /* ----------------------------------------------------------------------
713 * Helper routines that contain the actual SCP protocol elements,
714 * implemented both as SCP1 and SFTP.
717 static struct scp_sftp_dirstack
{
718 struct scp_sftp_dirstack
*next
;
719 struct fxp_name
*names
;
720 int namepos
, namelen
;
723 int matched_something
; /* wildcard match set was non-empty */
724 } *scp_sftp_dirstack_head
;
725 static char *scp_sftp_remotepath
, *scp_sftp_currentname
;
726 static char *scp_sftp_wildcard
;
727 static int scp_sftp_targetisdir
, scp_sftp_donethistarget
;
728 static int scp_sftp_preserve
, scp_sftp_recursive
;
729 static unsigned long scp_sftp_mtime
, scp_sftp_atime
;
730 static int scp_has_times
;
731 static struct fxp_handle
*scp_sftp_filehandle
;
732 static struct fxp_xfer
*scp_sftp_xfer
;
733 static uint64 scp_sftp_fileoffset
;
735 void scp_source_setup(char *target
, int shouldbedir
)
739 * Find out whether the target filespec is in fact a
742 struct sftp_packet
*pktin
;
743 struct sftp_request
*req
, *rreq
;
744 struct fxp_attrs attrs
;
748 tell_user(stderr
, "unable to initialise SFTP: %s", fxp_error());
753 sftp_register(req
= fxp_stat_send(target
));
754 rreq
= sftp_find_request(pktin
= sftp_recv());
756 ret
= fxp_stat_recv(pktin
, rreq
, &attrs
);
758 if (!ret
|| !(attrs
.flags
& SSH_FILEXFER_ATTR_PERMISSIONS
))
759 scp_sftp_targetisdir
= 0;
761 scp_sftp_targetisdir
= (attrs
.permissions
& 0040000) != 0;
763 if (shouldbedir
&& !scp_sftp_targetisdir
) {
764 bump("pscp: remote filespec %s: not a directory\n", target
);
767 scp_sftp_remotepath
= dupstr(target
);
775 int scp_send_errmsg(char *str
)
778 /* do nothing; we never need to send our errors to the server */
780 back
->send(backhandle
, "\001", 1);/* scp protocol error prefix */
781 back
->send(backhandle
, str
, strlen(str
));
783 return 0; /* can't fail */
786 int scp_send_filetimes(unsigned long mtime
, unsigned long atime
)
789 scp_sftp_mtime
= mtime
;
790 scp_sftp_atime
= atime
;
795 sprintf(buf
, "T%lu 0 %lu 0\n", mtime
, atime
);
796 back
->send(backhandle
, buf
, strlen(buf
));
801 int scp_send_filename(char *name
, unsigned long size
, int modes
)
805 struct sftp_packet
*pktin
;
806 struct sftp_request
*req
, *rreq
;
808 if (scp_sftp_targetisdir
) {
809 fullname
= dupcat(scp_sftp_remotepath
, "/", name
, NULL
);
811 fullname
= dupstr(scp_sftp_remotepath
);
814 sftp_register(req
= fxp_open_send(fullname
, SSH_FXF_WRITE
|
815 SSH_FXF_CREAT
| SSH_FXF_TRUNC
));
816 rreq
= sftp_find_request(pktin
= sftp_recv());
818 scp_sftp_filehandle
= fxp_open_recv(pktin
, rreq
);
820 if (!scp_sftp_filehandle
) {
821 tell_user(stderr
, "pscp: unable to open %s: %s",
822 fullname
, fxp_error());
826 scp_sftp_fileoffset
= uint64_make(0, 0);
827 scp_sftp_xfer
= xfer_upload_init(scp_sftp_filehandle
,
828 scp_sftp_fileoffset
);
833 sprintf(buf
, "C%04o %lu ", modes
, size
);
834 back
->send(backhandle
, buf
, strlen(buf
));
835 back
->send(backhandle
, name
, strlen(name
));
836 back
->send(backhandle
, "\n", 1);
841 int scp_send_filedata(char *data
, int len
)
845 struct sftp_packet
*pktin
;
847 if (!scp_sftp_filehandle
) {
851 while (!xfer_upload_ready(scp_sftp_xfer
)) {
853 ret
= xfer_upload_gotpkt(scp_sftp_xfer
, pktin
);
855 tell_user(stderr
, "error while writing: %s\n", fxp_error());
861 xfer_upload_data(scp_sftp_xfer
, data
, len
);
863 scp_sftp_fileoffset
= uint64_add32(scp_sftp_fileoffset
, len
);
866 int bufsize
= back
->send(backhandle
, data
, len
);
869 * If the network transfer is backing up - that is, the
870 * remote site is not accepting data as fast as we can
871 * produce it - then we must loop on network events until
872 * we have space in the buffer again.
874 while (bufsize
> MAX_SCP_BUFSIZE
) {
875 if (ssh_sftp_loop_iteration() < 0)
877 bufsize
= back
->sendbuffer(backhandle
);
884 int scp_send_finish(void)
887 struct fxp_attrs attrs
;
888 struct sftp_packet
*pktin
;
889 struct sftp_request
*req
, *rreq
;
892 while (!xfer_done(scp_sftp_xfer
)) {
894 xfer_upload_gotpkt(scp_sftp_xfer
, pktin
);
896 xfer_cleanup(scp_sftp_xfer
);
898 if (!scp_sftp_filehandle
) {
902 attrs
.flags
= SSH_FILEXFER_ATTR_ACMODTIME
;
903 attrs
.atime
= scp_sftp_atime
;
904 attrs
.mtime
= scp_sftp_mtime
;
905 sftp_register(req
= fxp_fsetstat_send(scp_sftp_filehandle
, attrs
));
906 rreq
= sftp_find_request(pktin
= sftp_recv());
908 ret
= fxp_fsetstat_recv(pktin
, rreq
);
910 tell_user(stderr
, "unable to set file times: %s\n", fxp_error());
914 sftp_register(req
= fxp_close_send(scp_sftp_filehandle
));
915 rreq
= sftp_find_request(pktin
= sftp_recv());
917 fxp_close_recv(pktin
, rreq
);
921 back
->send(backhandle
, "", 1);
926 char *scp_save_remotepath(void)
929 return scp_sftp_remotepath
;
934 void scp_restore_remotepath(char *data
)
937 scp_sftp_remotepath
= data
;
940 int scp_send_dirname(char *name
, int modes
)
945 struct fxp_attrs attrs
;
946 struct sftp_packet
*pktin
;
947 struct sftp_request
*req
, *rreq
;
950 if (scp_sftp_targetisdir
) {
951 fullname
= dupcat(scp_sftp_remotepath
, "/", name
, NULL
);
953 fullname
= dupstr(scp_sftp_remotepath
);
957 * We don't worry about whether we managed to create the
958 * directory, because if it exists already it's OK just to
959 * use it. Instead, we will stat it afterwards, and if it
960 * exists and is a directory we will assume we were either
961 * successful or it didn't matter.
963 sftp_register(req
= fxp_mkdir_send(fullname
));
964 rreq
= sftp_find_request(pktin
= sftp_recv());
966 ret
= fxp_mkdir_recv(pktin
, rreq
);
971 err
= "server reported no error";
973 sftp_register(req
= fxp_stat_send(fullname
));
974 rreq
= sftp_find_request(pktin
= sftp_recv());
976 ret
= fxp_stat_recv(pktin
, rreq
, &attrs
);
978 if (!ret
|| !(attrs
.flags
& SSH_FILEXFER_ATTR_PERMISSIONS
) ||
979 !(attrs
.permissions
& 0040000)) {
980 tell_user(stderr
, "unable to create directory %s: %s",
986 scp_sftp_remotepath
= fullname
;
991 sprintf(buf
, "D%04o 0 ", modes
);
992 back
->send(backhandle
, buf
, strlen(buf
));
993 back
->send(backhandle
, name
, strlen(name
));
994 back
->send(backhandle
, "\n", 1);
999 int scp_send_enddir(void)
1002 sfree(scp_sftp_remotepath
);
1005 back
->send(backhandle
, "E\n", 2);
1011 * Yes, I know; I have an scp_sink_setup _and_ an scp_sink_init.
1012 * That's bad. The difference is that scp_sink_setup is called once
1013 * right at the start, whereas scp_sink_init is called to
1014 * initialise every level of recursion in the protocol.
1016 int scp_sink_setup(char *source
, int preserve
, int recursive
)
1022 tell_user(stderr
, "unable to initialise SFTP: %s", fxp_error());
1027 * It's possible that the source string we've been given
1028 * contains a wildcard. If so, we must split the directory
1029 * away from the wildcard itself (throwing an error if any
1030 * wildcardness comes before the final slash) and arrange
1031 * things so that a dirstack entry will be set up.
1033 newsource
= snewn(1+strlen(source
), char);
1034 if (!wc_unescape(newsource
, source
)) {
1035 /* Yes, here we go; it's a wildcard. Bah. */
1036 char *dupsource
, *lastpart
, *dirpart
, *wildcard
;
1037 dupsource
= dupstr(source
);
1038 lastpart
= stripslashes(dupsource
, 0);
1039 wildcard
= dupstr(lastpart
);
1041 if (*dupsource
&& dupsource
[1]) {
1043 * The remains of dupsource are at least two
1044 * characters long, meaning the pathname wasn't
1045 * empty or just `/'. Hence, we remove the trailing
1048 lastpart
[-1] = '\0';
1049 } else if (!*dupsource
) {
1051 * The remains of dupsource are _empty_ - the whole
1052 * pathname was a wildcard. Hence we need to
1053 * replace it with ".".
1056 dupsource
= dupstr(".");
1060 * Now we have separated our string into dupsource (the
1061 * directory part) and wildcard. Both of these will
1062 * need freeing at some point. Next step is to remove
1063 * wildcard escapes from the directory part, throwing
1064 * an error if it contains a real wildcard.
1066 dirpart
= snewn(1+strlen(dupsource
), char);
1067 if (!wc_unescape(dirpart
, dupsource
)) {
1068 tell_user(stderr
, "%s: multiple-level wildcards unsupported",
1078 * Now we have dirpart (unescaped, ie a valid remote
1079 * path), and wildcard (a wildcard). This will be
1080 * sufficient to arrange a dirstack entry.
1082 scp_sftp_remotepath
= dirpart
;
1083 scp_sftp_wildcard
= wildcard
;
1086 scp_sftp_remotepath
= newsource
;
1087 scp_sftp_wildcard
= NULL
;
1089 scp_sftp_preserve
= preserve
;
1090 scp_sftp_recursive
= recursive
;
1091 scp_sftp_donethistarget
= 0;
1092 scp_sftp_dirstack_head
= NULL
;
1097 int scp_sink_init(void)
1100 back
->send(backhandle
, "", 1);
1105 #define SCP_SINK_FILE 1
1106 #define SCP_SINK_DIR 2
1107 #define SCP_SINK_ENDDIR 3
1108 #define SCP_SINK_RETRY 4 /* not an action; just try again */
1109 struct scp_sink_action
{
1110 int action
; /* FILE, DIR, ENDDIR */
1111 char *buf
; /* will need freeing after use */
1112 char *name
; /* filename or dirname (not ENDDIR) */
1113 int mode
; /* access mode (not ENDDIR) */
1114 unsigned long size
; /* file size (not ENDDIR) */
1115 int settime
; /* 1 if atime and mtime are filled */
1116 unsigned long atime
, mtime
; /* access times for the file */
1119 int scp_get_sink_action(struct scp_sink_action
*act
)
1123 int must_free_fname
;
1124 struct fxp_attrs attrs
;
1125 struct sftp_packet
*pktin
;
1126 struct sftp_request
*req
, *rreq
;
1129 if (!scp_sftp_dirstack_head
) {
1130 if (!scp_sftp_donethistarget
) {
1132 * Simple case: we are only dealing with one file.
1134 fname
= scp_sftp_remotepath
;
1135 must_free_fname
= 0;
1136 scp_sftp_donethistarget
= 1;
1139 * Even simpler case: one file _which we've done_.
1140 * Return 1 (finished).
1146 * We're now in the middle of stepping through a list
1147 * of names returned from fxp_readdir(); so let's carry
1150 struct scp_sftp_dirstack
*head
= scp_sftp_dirstack_head
;
1151 while (head
->namepos
< head
->namelen
&&
1152 (is_dots(head
->names
[head
->namepos
].filename
) ||
1154 !wc_match(head
->wildcard
,
1155 head
->names
[head
->namepos
].filename
))))
1156 head
->namepos
++; /* skip . and .. */
1157 if (head
->namepos
< head
->namelen
) {
1158 head
->matched_something
= 1;
1159 fname
= dupcat(head
->dirpath
, "/",
1160 head
->names
[head
->namepos
++].filename
,
1162 must_free_fname
= 1;
1165 * We've come to the end of the list; pop it off
1166 * the stack and return an ENDDIR action (or RETRY
1167 * if this was a wildcard match).
1169 if (head
->wildcard
) {
1170 act
->action
= SCP_SINK_RETRY
;
1171 if (!head
->matched_something
) {
1172 tell_user(stderr
, "pscp: wildcard '%s' matched "
1173 "no files", head
->wildcard
);
1176 sfree(head
->wildcard
);
1179 act
->action
= SCP_SINK_ENDDIR
;
1182 sfree(head
->dirpath
);
1184 scp_sftp_dirstack_head
= head
->next
;
1192 * Now we have a filename. Stat it, and see if it's a file
1195 sftp_register(req
= fxp_stat_send(fname
));
1196 rreq
= sftp_find_request(pktin
= sftp_recv());
1197 assert(rreq
== req
);
1198 ret
= fxp_stat_recv(pktin
, rreq
, &attrs
);
1200 if (!ret
|| !(attrs
.flags
& SSH_FILEXFER_ATTR_PERMISSIONS
)) {
1201 tell_user(stderr
, "unable to identify %s: %s", fname
,
1202 ret ?
"file type not supplied" : fxp_error());
1207 if (attrs
.permissions
& 0040000) {
1208 struct scp_sftp_dirstack
*newitem
;
1209 struct fxp_handle
*dirhandle
;
1210 int nnames
, namesize
;
1211 struct fxp_name
*ournames
;
1212 struct fxp_names
*names
;
1215 * It's a directory. If we're not in recursive mode,
1216 * this merits a complaint (which is fatal if the name
1217 * was specified directly, but not if it was matched by
1220 * We skip this complaint completely if
1221 * scp_sftp_wildcard is set, because that's an
1222 * indication that we're not actually supposed to
1223 * _recursively_ transfer the dir, just scan it for
1224 * things matching the wildcard.
1226 if (!scp_sftp_recursive
&& !scp_sftp_wildcard
) {
1227 tell_user(stderr
, "pscp: %s: is a directory", fname
);
1229 if (must_free_fname
) sfree(fname
);
1230 if (scp_sftp_dirstack_head
) {
1231 act
->action
= SCP_SINK_RETRY
;
1239 * Otherwise, the fun begins. We must fxp_opendir() the
1240 * directory, slurp the filenames into memory, return
1241 * SCP_SINK_DIR (unless this is a wildcard match), and
1242 * set targetisdir. The next time we're called, we will
1243 * run through the list of filenames one by one,
1244 * matching them against a wildcard if present.
1246 * If targetisdir is _already_ set (meaning we're
1247 * already in the middle of going through another such
1248 * list), we must push the other (target,namelist) pair
1251 sftp_register(req
= fxp_opendir_send(fname
));
1252 rreq
= sftp_find_request(pktin
= sftp_recv());
1253 assert(rreq
== req
);
1254 dirhandle
= fxp_opendir_recv(pktin
, rreq
);
1257 tell_user(stderr
, "scp: unable to open directory %s: %s",
1258 fname
, fxp_error());
1259 if (must_free_fname
) sfree(fname
);
1263 nnames
= namesize
= 0;
1268 sftp_register(req
= fxp_readdir_send(dirhandle
));
1269 rreq
= sftp_find_request(pktin
= sftp_recv());
1270 assert(rreq
== req
);
1271 names
= fxp_readdir_recv(pktin
, rreq
);
1273 if (names
== NULL
) {
1274 if (fxp_error_type() == SSH_FX_EOF
)
1276 tell_user(stderr
, "scp: reading directory %s: %s\n",
1277 fname
, fxp_error());
1278 if (must_free_fname
) sfree(fname
);
1283 if (names
->nnames
== 0) {
1284 fxp_free_names(names
);
1287 if (nnames
+ names
->nnames
>= namesize
) {
1288 namesize
+= names
->nnames
+ 128;
1289 ournames
= sresize(ournames
, namesize
, struct fxp_name
);
1291 for (i
= 0; i
< names
->nnames
; i
++) {
1292 if (!strcmp(names
->names
[i
].filename
, ".") ||
1293 !strcmp(names
->names
[i
].filename
, "..")) {
1295 * . and .. are normal consequences of
1296 * reading a directory, and aren't worth
1297 * complaining about.
1299 } else if (!vet_filename(names
->names
[i
].filename
)) {
1300 tell_user(stderr
, "ignoring potentially dangerous server-"
1301 "supplied filename '%s'\n",
1302 names
->names
[i
].filename
);
1304 ournames
[nnames
++] = names
->names
[i
];
1306 names
->nnames
= 0; /* prevent free_names */
1307 fxp_free_names(names
);
1309 sftp_register(req
= fxp_close_send(dirhandle
));
1310 rreq
= sftp_find_request(pktin
= sftp_recv());
1311 assert(rreq
== req
);
1312 fxp_close_recv(pktin
, rreq
);
1314 newitem
= snew(struct scp_sftp_dirstack
);
1315 newitem
->next
= scp_sftp_dirstack_head
;
1316 newitem
->names
= ournames
;
1317 newitem
->namepos
= 0;
1318 newitem
->namelen
= nnames
;
1319 if (must_free_fname
)
1320 newitem
->dirpath
= fname
;
1322 newitem
->dirpath
= dupstr(fname
);
1323 if (scp_sftp_wildcard
) {
1324 newitem
->wildcard
= scp_sftp_wildcard
;
1325 newitem
->matched_something
= 0;
1326 scp_sftp_wildcard
= NULL
;
1328 newitem
->wildcard
= NULL
;
1330 scp_sftp_dirstack_head
= newitem
;
1332 if (newitem
->wildcard
) {
1333 act
->action
= SCP_SINK_RETRY
;
1335 act
->action
= SCP_SINK_DIR
;
1336 act
->buf
= dupstr(stripslashes(fname
, 0));
1337 act
->name
= act
->buf
;
1338 act
->size
= 0; /* duhh, it's a directory */
1339 act
->mode
= 07777 & attrs
.permissions
;
1340 if (scp_sftp_preserve
&&
1341 (attrs
.flags
& SSH_FILEXFER_ATTR_ACMODTIME
)) {
1342 act
->atime
= attrs
.atime
;
1343 act
->mtime
= attrs
.mtime
;
1352 * It's a file. Return SCP_SINK_FILE.
1354 act
->action
= SCP_SINK_FILE
;
1355 act
->buf
= dupstr(stripslashes(fname
, 0));
1356 act
->name
= act
->buf
;
1357 if (attrs
.flags
& SSH_FILEXFER_ATTR_SIZE
) {
1358 if (uint64_compare(attrs
.size
,
1359 uint64_make(0, ULONG_MAX
)) > 0) {
1360 act
->size
= ULONG_MAX
; /* *boggle* */
1362 act
->size
= attrs
.size
.lo
;
1364 act
->size
= ULONG_MAX
; /* no idea */
1365 act
->mode
= 07777 & attrs
.permissions
;
1366 if (scp_sftp_preserve
&&
1367 (attrs
.flags
& SSH_FILEXFER_ATTR_ACMODTIME
)) {
1368 act
->atime
= attrs
.atime
;
1369 act
->mtime
= attrs
.mtime
;
1373 if (must_free_fname
)
1374 scp_sftp_currentname
= fname
;
1376 scp_sftp_currentname
= dupstr(fname
);
1391 if (ssh_scp_recv((unsigned char *) &ch
, 1) <= 0)
1394 bump("Protocol error: Unexpected newline");
1398 if (ssh_scp_recv((unsigned char *) &ch
, 1) <= 0)
1399 bump("Lost connection");
1402 act
->buf
= sresize(act
->buf
, bufsize
, char);
1405 } while (ch
!= '\n');
1406 act
->buf
[i
- 1] = '\0';
1408 case '\01': /* error */
1409 tell_user(stderr
, "%s\n", act
->buf
);
1411 continue; /* go round again */
1412 case '\02': /* fatal error */
1413 bump("%s", act
->buf
);
1415 back
->send(backhandle
, "", 1);
1416 act
->action
= SCP_SINK_ENDDIR
;
1419 if (sscanf(act
->buf
, "%ld %*d %ld %*d",
1420 &act
->mtime
, &act
->atime
) == 2) {
1422 back
->send(backhandle
, "", 1);
1423 continue; /* go round again */
1425 bump("Protocol error: Illegal time format");
1428 act
->action
= (action
== 'C' ? SCP_SINK_FILE
: SCP_SINK_DIR
);
1431 bump("Protocol error: Expected control record");
1434 * We will go round this loop only once, unless we hit
1441 * If we get here, we must have seen SCP_SINK_FILE or
1444 if (sscanf(act
->buf
, "%o %lu %n", &act
->mode
, &act
->size
, &i
) != 2)
1445 bump("Protocol error: Illegal file descriptor format");
1446 act
->name
= act
->buf
+ i
;
1451 int scp_accept_filexfer(void)
1454 struct sftp_packet
*pktin
;
1455 struct sftp_request
*req
, *rreq
;
1457 sftp_register(req
= fxp_open_send(scp_sftp_currentname
, SSH_FXF_READ
));
1458 rreq
= sftp_find_request(pktin
= sftp_recv());
1459 assert(rreq
== req
);
1460 scp_sftp_filehandle
= fxp_open_recv(pktin
, rreq
);
1462 if (!scp_sftp_filehandle
) {
1463 tell_user(stderr
, "pscp: unable to open %s: %s",
1464 scp_sftp_currentname
, fxp_error());
1468 scp_sftp_fileoffset
= uint64_make(0, 0);
1469 scp_sftp_xfer
= xfer_download_init(scp_sftp_filehandle
,
1470 scp_sftp_fileoffset
);
1471 sfree(scp_sftp_currentname
);
1474 back
->send(backhandle
, "", 1);
1475 return 0; /* can't fail */
1479 int scp_recv_filedata(char *data
, int len
)
1482 struct sftp_packet
*pktin
;
1486 xfer_download_queue(scp_sftp_xfer
);
1487 pktin
= sftp_recv();
1488 ret
= xfer_download_gotpkt(scp_sftp_xfer
, pktin
);
1491 tell_user(stderr
, "pscp: error while reading: %s", fxp_error());
1496 if (xfer_download_data(scp_sftp_xfer
, &vbuf
, &actuallen
)) {
1498 * This assertion relies on the fact that the natural
1499 * block size used in the xfer manager is at most that
1500 * used in this module. I don't like crossing layers in
1501 * this way, but it'll do for now.
1503 assert(actuallen
<= len
);
1504 memcpy(data
, vbuf
, actuallen
);
1509 scp_sftp_fileoffset
= uint64_add32(scp_sftp_fileoffset
, actuallen
);
1513 return ssh_scp_recv((unsigned char *) data
, len
);
1517 int scp_finish_filerecv(void)
1520 struct sftp_packet
*pktin
;
1521 struct sftp_request
*req
, *rreq
;
1524 * Ensure that xfer_done() will work correctly, so we can
1525 * clean up any outstanding requests from the file
1528 xfer_set_error(scp_sftp_xfer
);
1529 while (!xfer_done(scp_sftp_xfer
)) {
1533 pktin
= sftp_recv();
1534 xfer_download_gotpkt(scp_sftp_xfer
, pktin
);
1535 if (xfer_download_data(scp_sftp_xfer
, &vbuf
, &len
))
1538 xfer_cleanup(scp_sftp_xfer
);
1540 sftp_register(req
= fxp_close_send(scp_sftp_filehandle
));
1541 rreq
= sftp_find_request(pktin
= sftp_recv());
1542 assert(rreq
== req
);
1543 fxp_close_recv(pktin
, rreq
);
1546 back
->send(backhandle
, "", 1);
1551 /* ----------------------------------------------------------------------
1552 * Send an error message to the other side and to the screen.
1553 * Increment error counter.
1555 static void run_err(const char *fmt
, ...)
1561 str
= dupvprintf(fmt
, ap
);
1562 str2
= dupcat("scp: ", str
, "\n", NULL
);
1564 scp_send_errmsg(str2
);
1565 tell_user(stderr
, "%s", str2
);
1571 * Execute the source part of the SCP protocol.
1573 static void source(char *src
)
1576 unsigned long mtime
, atime
;
1581 unsigned long stat_bytes
;
1582 time_t stat_starttime
, stat_lasttime
;
1584 attr
= file_type(src
);
1585 if (attr
== FILE_TYPE_NONEXISTENT
||
1586 attr
== FILE_TYPE_WEIRD
) {
1587 run_err("%s: %s file or directory", src
,
1588 (attr
== FILE_TYPE_WEIRD ?
"Not a" : "No such"));
1592 if (attr
== FILE_TYPE_DIRECTORY
) {
1595 * Avoid . and .. directories.
1598 p
= strrchr(src
, '/');
1600 p
= strrchr(src
, '\\');
1605 if (!strcmp(p
, ".") || !strcmp(p
, ".."))
1606 /* skip . and .. */ ;
1610 run_err("%s: not a regular file", src
);
1615 if ((last
= strrchr(src
, '/')) == NULL
)
1619 if (strrchr(last
, '\\') != NULL
)
1620 last
= strrchr(last
, '\\') + 1;
1621 if (last
== src
&& strchr(src
, ':') != NULL
)
1622 last
= strchr(src
, ':') + 1;
1624 f
= open_existing_file(src
, &size
, &mtime
, &atime
);
1626 run_err("%s: Cannot open file", src
);
1630 if (scp_send_filetimes(mtime
, atime
))
1635 tell_user(stderr
, "Sending file %s, size=%lu", last
, size
);
1636 if (scp_send_filename(last
, size
, 0644))
1640 stat_starttime
= time(NULL
);
1643 for (i
= 0; i
< size
; i
+= 4096) {
1644 char transbuf
[4096];
1649 if ((j
= read_from_file(f
, transbuf
, k
)) != k
) {
1652 bump("%s: Read error", src
);
1654 if (scp_send_filedata(transbuf
, k
))
1655 bump("%s: Network error occurred", src
);
1659 if (time(NULL
) != stat_lasttime
|| i
+ k
== size
) {
1660 stat_lasttime
= time(NULL
);
1661 print_stats(last
, size
, stat_bytes
,
1662 stat_starttime
, stat_lasttime
);
1669 (void) scp_send_finish();
1673 * Recursively send the contents of a directory.
1675 static void rsource(char *src
)
1681 if ((last
= strrchr(src
, '/')) == NULL
)
1685 if (strrchr(last
, '\\') != NULL
)
1686 last
= strrchr(last
, '\\') + 1;
1687 if (last
== src
&& strchr(src
, ':') != NULL
)
1688 last
= strchr(src
, ':') + 1;
1690 /* maybe send filetime */
1692 save_target
= scp_save_remotepath();
1695 tell_user(stderr
, "Entering directory: %s", last
);
1696 if (scp_send_dirname(last
, 0755))
1699 dir
= open_directory(src
);
1702 while ((filename
= read_filename(dir
)) != NULL
) {
1703 char *foundfile
= dupcat(src
, "/", filename
, NULL
);
1709 close_directory(dir
);
1711 (void) scp_send_enddir();
1713 scp_restore_remotepath(save_target
);
1717 * Execute the sink part of the SCP protocol.
1719 static void sink(char *targ
, char *src
)
1726 unsigned long received
;
1728 unsigned long stat_bytes
;
1729 time_t stat_starttime
, stat_lasttime
;
1732 attr
= file_type(targ
);
1733 if (attr
== FILE_TYPE_DIRECTORY
)
1736 if (targetshouldbedirectory
&& !targisdir
)
1737 bump("%s: Not a directory", targ
);
1741 struct scp_sink_action act
;
1742 if (scp_get_sink_action(&act
))
1745 if (act
.action
== SCP_SINK_ENDDIR
)
1748 if (act
.action
== SCP_SINK_RETRY
)
1753 * Prevent the remote side from maliciously writing to
1754 * files outside the target area by sending a filename
1755 * containing `../'. In fact, it shouldn't be sending
1756 * filenames with any slashes or colons in at all; so
1757 * we'll find the last slash, backslash or colon in the
1758 * filename and use only the part after that. (And
1761 * In addition, we also ensure here that if we're
1762 * copying a single file and the target is a directory
1763 * (common usage: `pscp host:filename .') the remote
1764 * can't send us a _different_ file name. We can
1765 * distinguish this case because `src' will be non-NULL
1766 * and the last component of that will fail to match
1767 * (the last component of) the name sent.
1769 * Well, not always; if `src' is a wildcard, we do
1770 * expect to get back filenames that don't correspond
1771 * exactly to it. Ideally in this case, we would like
1772 * to ensure that the returned filename actually
1773 * matches the wildcard pattern - but one of SCP's
1774 * protocol infelicities is that wildcard matching is
1775 * done at the server end _by the server's rules_ and
1776 * so in general this is infeasible. Hence, we only
1777 * accept filenames that don't correspond to `src' if
1778 * unsafe mode is enabled or we are using SFTP (which
1779 * resolves remote wildcards on the client side and can
1782 char *striptarget
, *stripsrc
;
1784 striptarget
= stripslashes(act
.name
, 1);
1785 if (striptarget
!= act
.name
) {
1786 tell_user(stderr
, "warning: remote host sent a compound"
1787 " pathname '%s'", act
.name
);
1788 tell_user(stderr
, " renaming local file to '%s'",
1793 * Also check to see if the target filename is '.' or
1794 * '..', or indeed '...' and so on because Windows
1795 * appears to interpret those like '..'.
1797 if (is_dots(striptarget
)) {
1798 bump("security violation: remote host attempted to write to"
1799 " a '.' or '..' path!");
1803 stripsrc
= stripslashes(src
, 1);
1804 if (strcmp(striptarget
, stripsrc
) &&
1805 !using_sftp
&& !scp_unsafe_mode
) {
1806 tell_user(stderr
, "warning: remote host tried to write "
1807 "to a file called '%s'", striptarget
);
1808 tell_user(stderr
, " when we requested a file "
1809 "called '%s'.", stripsrc
);
1810 tell_user(stderr
, " If this is a wildcard, "
1811 "consider upgrading to SSH 2 or using");
1812 tell_user(stderr
, " the '-unsafe' option. Renaming"
1813 " of this file has been disallowed.");
1814 /* Override the name the server provided with our own. */
1815 striptarget
= stripsrc
;
1819 if (targ
[0] != '\0')
1820 destfname
= dir_file_cat(targ
, striptarget
);
1822 destfname
= dupstr(striptarget
);
1825 * In this branch of the if, the target area is a
1826 * single file with an explicitly specified name in any
1827 * case, so there's no danger.
1829 destfname
= dupstr(targ
);
1831 attr
= file_type(destfname
);
1832 exists
= (attr
!= FILE_TYPE_NONEXISTENT
);
1834 if (act
.action
== SCP_SINK_DIR
) {
1835 if (exists
&& attr
!= FILE_TYPE_DIRECTORY
) {
1836 run_err("%s: Not a directory", destfname
);
1840 if (!create_directory(destfname
)) {
1841 run_err("%s: Cannot create directory", destfname
);
1845 sink(destfname
, NULL
);
1846 /* can we set the timestamp for directories ? */
1850 f
= open_new_file(destfname
);
1852 run_err("%s: Cannot create file", destfname
);
1856 if (scp_accept_filexfer())
1860 stat_starttime
= time(NULL
);
1862 stat_name
= stripslashes(destfname
, 1);
1865 while (received
< act
.size
) {
1866 char transbuf
[4096];
1867 unsigned long blksize
;
1870 if (blksize
> (act
.size
- received
))
1871 blksize
= act
.size
- received
;
1872 read
= scp_recv_filedata(transbuf
, (int)blksize
);
1874 bump("Lost connection");
1877 if (write_to_file(f
, transbuf
, read
) != (int)read
) {
1879 /* FIXME: in sftp we can actually abort the transfer */
1881 printf("\r%-25.25s | %50s\n",
1883 "Write error.. waiting for end of file");
1888 if (time(NULL
) > stat_lasttime
||
1889 received
+ read
== act
.size
) {
1890 stat_lasttime
= time(NULL
);
1891 print_stats(stat_name
, act
.size
, stat_bytes
,
1892 stat_starttime
, stat_lasttime
);
1898 set_file_times(f
, act
.mtime
, act
.atime
);
1903 run_err("%s: Write error", destfname
);
1906 (void) scp_finish_filerecv();
1913 * We will copy local files to a remote server.
1915 static void toremote(int argc
, char *argv
[])
1917 char *src
, *targ
, *host
, *user
;
1921 targ
= argv
[argc
- 1];
1923 /* Separate host from filename */
1927 bump("targ == NULL in toremote()");
1931 /* Substitute "." for emtpy target */
1933 /* Separate host and username */
1935 host
= strrchr(host
, '@');
1946 if (colon(argv
[0]) != NULL
)
1947 bump("%s: Remote to remote not supported", argv
[0]);
1949 wc_type
= test_wildcard(argv
[0], 1);
1950 if (wc_type
== WCTYPE_NONEXISTENT
)
1951 bump("%s: No such file or directory\n", argv
[0]);
1952 else if (wc_type
== WCTYPE_WILDCARD
)
1953 targetshouldbedirectory
= 1;
1956 cmd
= dupprintf("scp%s%s%s%s -t %s",
1957 verbose ?
" -v" : "",
1958 recursive ?
" -r" : "",
1959 preserve ?
" -p" : "",
1960 targetshouldbedirectory ?
" -d" : "", targ
);
1961 do_cmd(host
, user
, cmd
);
1964 scp_source_setup(targ
, targetshouldbedirectory
);
1966 for (i
= 0; i
< argc
- 1; i
++) {
1968 if (colon(src
) != NULL
) {
1969 tell_user(stderr
, "%s: Remote to remote not supported\n", src
);
1974 wc_type
= test_wildcard(src
, 1);
1975 if (wc_type
== WCTYPE_NONEXISTENT
) {
1976 run_err("%s: No such file or directory", src
);
1978 } else if (wc_type
== WCTYPE_FILENAME
) {
1982 WildcardMatcher
*wc
;
1985 wc
= begin_wildcard_matching(src
);
1987 run_err("%s: No such file or directory", src
);
1991 while ((filename
= wildcard_get_filename(wc
)) != NULL
) {
1996 finish_wildcard_matching(wc
);
2002 * We will copy files from a remote server to the local machine.
2004 static void tolocal(int argc
, char *argv
[])
2006 char *src
, *targ
, *host
, *user
;
2010 bump("More than one remote source not supported");
2015 /* Separate host from filename */
2019 bump("Local to local copy not supported");
2023 /* Substitute "." for empty filename */
2025 /* Separate username and hostname */
2027 host
= strrchr(host
, '@');
2037 cmd
= dupprintf("scp%s%s%s%s -f %s",
2038 verbose ?
" -v" : "",
2039 recursive ?
" -r" : "",
2040 preserve ?
" -p" : "",
2041 targetshouldbedirectory ?
" -d" : "", src
);
2042 do_cmd(host
, user
, cmd
);
2045 if (scp_sink_setup(src
, preserve
, recursive
))
2052 * We will issue a list command to get a remote directory.
2054 static void get_dir_list(int argc
, char *argv
[])
2056 char *src
, *host
, *user
;
2062 /* Separate host from filename */
2066 bump("Local to local copy not supported");
2070 /* Substitute "." for empty filename */
2072 /* Separate username and hostname */
2074 host
= strrchr(host
, '@');
2084 cmd
= snewn(4 * strlen(src
) + 100, char);
2085 strcpy(cmd
, "ls -la '");
2086 p
= cmd
+ strlen(cmd
);
2087 for (q
= src
; *q
; q
++) {
2100 do_cmd(host
, user
, cmd
);
2104 scp_sftp_listdir(src
);
2106 while (ssh_scp_recv((unsigned char *) &c
, 1) > 0)
2107 tell_char(stdout
, c
);
2112 * Short description of parameters.
2114 static void usage(void)
2116 printf("PuTTY Secure Copy client\n");
2117 printf("%s\n", ver
);
2118 printf("Usage: pscp [options] [user@]host:source target\n");
2120 (" pscp [options] source [source...] [user@]host:target\n");
2121 printf(" pscp [options] -ls [user@]host:filespec\n");
2122 printf("Options:\n");
2123 printf(" -p preserve file attributes\n");
2124 printf(" -q quiet, don't show statistics\n");
2125 printf(" -r copy directories recursively\n");
2126 printf(" -v show verbose messages\n");
2127 printf(" -load sessname Load settings from saved session\n");
2128 printf(" -P port connect to specified port\n");
2129 printf(" -l user connect with specified username\n");
2130 printf(" -pw passw login with specified password\n");
2131 printf(" -1 -2 force use of particular SSH protocol version\n");
2132 printf(" -C enable compression\n");
2133 printf(" -i key private key file for authentication\n");
2134 printf(" -batch disable all interactive prompts\n");
2135 printf(" -unsafe allow server-side wildcards (DANGEROUS)\n");
2136 printf(" -V print version information\n");
2137 printf(" -sftp force use of SFTP protocol\n");
2138 printf(" -scp force use of SCP protocol\n");
2141 * -gui is an internal option, used by GUI front ends to get
2142 * pscp to pass progress reports back to them. It's not an
2143 * ordinary user-accessible option, so it shouldn't be part of
2144 * the command-line help. The only people who need to know
2145 * about it are programmers, and they can read the source.
2148 (" -gui hWnd GUI mode with the windows handle for receiving messages\n");
2155 printf("pscp: %s\n", ver
);
2159 void cmdline_error(char *p
, ...)
2162 fprintf(stderr
, "pscp: ");
2164 vfprintf(stderr
, p
, ap
);
2166 fprintf(stderr
, "\n try typing just \"pscp\" for help\n");
2171 * Main program. (Called `psftp_main' because it gets called from
2172 * *sftp.c; bit silly, I know, but it had to be called _something_.)
2174 int psftp_main(int argc
, char *argv
[])
2178 default_protocol
= PROT_TELNET
;
2181 #ifdef FLAG_SYNCAGENT
2185 cmdline_tooltype
= TOOLTYPE_FILETRANSFER
;
2186 ssh_get_line
= &console_get_line
;
2189 /* Load Default Settings before doing anything else. */
2190 do_defaults(NULL
, &cfg
);
2191 loaded_session
= FALSE
;
2193 for (i
= 1; i
< argc
; i
++) {
2195 if (argv
[i
][0] != '-')
2197 ret
= cmdline_process_param(argv
[i
], i
+1<argc?argv
[i
+1]:NULL
, 1, &cfg
);
2199 cmdline_error("option \"%s\" requires an argument", argv
[i
]);
2200 } else if (ret
== 2) {
2201 i
++; /* skip next argument */
2202 } else if (ret
== 1) {
2203 /* We have our own verbosity in addition to `flags'. */
2204 if (flags
& FLAG_VERBOSE
)
2206 } else if (strcmp(argv
[i
], "-r") == 0) {
2208 } else if (strcmp(argv
[i
], "-p") == 0) {
2210 } else if (strcmp(argv
[i
], "-q") == 0) {
2212 } else if (strcmp(argv
[i
], "-h") == 0 || strcmp(argv
[i
], "-?") == 0) {
2214 } else if (strcmp(argv
[i
], "-V") == 0) {
2216 } else if (strcmp(argv
[i
], "-gui") == 0 && i
+ 1 < argc
) {
2217 gui_enable(argv
[++i
]);
2219 console_batch_mode
= TRUE
;
2220 } else if (strcmp(argv
[i
], "-ls") == 0) {
2222 } else if (strcmp(argv
[i
], "-batch") == 0) {
2223 console_batch_mode
= 1;
2224 } else if (strcmp(argv
[i
], "-unsafe") == 0) {
2225 scp_unsafe_mode
= 1;
2226 } else if (strcmp(argv
[i
], "-sftp") == 0) {
2227 try_scp
= 0; try_sftp
= 1;
2228 } else if (strcmp(argv
[i
], "-scp") == 0) {
2229 try_scp
= 1; try_sftp
= 0;
2230 } else if (strcmp(argv
[i
], "--") == 0) {
2234 cmdline_error("unknown option \"%s\"", argv
[i
]);
2244 get_dir_list(argc
, argv
);
2251 targetshouldbedirectory
= 1;
2253 if (colon(argv
[argc
- 1]) != NULL
)
2254 toremote(argc
, argv
);
2256 tolocal(argc
, argv
);
2259 if (back
!= NULL
&& back
->socket(backhandle
) != NULL
) {
2261 back
->special(backhandle
, TS_EOF
);
2262 ssh_scp_recv((unsigned char *) &ch
, 1);
2267 gui_send_errcount(list
, errs
);
2270 console_provide_logctx(NULL
);
2271 back
->free(backhandle
);
2275 return (errs
== 0 ?
0 : 1);