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");
324 /* Try to load settings for this host */
325 do_defaults(host
, &cfg
);
326 if (cfg
.host
[0] == '\0') {
327 /* No settings for this host; use defaults */
328 do_defaults(NULL
, &cfg
);
329 strncpy(cfg
.host
, host
, sizeof(cfg
.host
) - 1);
330 cfg
.host
[sizeof(cfg
.host
) - 1] = '\0';
334 * Force use of SSH. (If they got the protocol wrong we assume the
335 * port is useless too.)
337 if (cfg
.protocol
!= PROT_SSH
) {
338 cfg
.protocol
= PROT_SSH
;
343 * Enact command-line overrides.
345 cmdline_run_saved(&cfg
);
348 * Trim leading whitespace off the hostname if it's there.
351 int space
= strspn(cfg
.host
, " \t");
352 memmove(cfg
.host
, cfg
.host
+space
, 1+strlen(cfg
.host
)-space
);
355 /* See if host is of the form user@host */
356 if (cfg
.host
[0] != '\0') {
357 char *atsign
= strchr(cfg
.host
, '@');
358 /* Make sure we're not overflowing the user field */
360 if (atsign
- cfg
.host
< sizeof cfg
.username
) {
361 strncpy(cfg
.username
, cfg
.host
, atsign
- cfg
.host
);
362 cfg
.username
[atsign
- cfg
.host
] = '\0';
364 memmove(cfg
.host
, atsign
+ 1, 1 + strlen(atsign
+ 1));
369 * Trim a colon suffix off the hostname if it's there.
371 cfg
.host
[strcspn(cfg
.host
, ":")] = '\0';
374 * Remove any remaining whitespace from the hostname.
378 while (cfg
.host
[p2
] != '\0') {
379 if (cfg
.host
[p2
] != ' ' && cfg
.host
[p2
] != '\t') {
380 cfg
.host
[p1
] = cfg
.host
[p2
];
389 if (user
!= NULL
&& user
[0] != '\0') {
390 strncpy(cfg
.username
, user
, sizeof(cfg
.username
) - 1);
391 cfg
.username
[sizeof(cfg
.username
) - 1] = '\0';
392 } else if (cfg
.username
[0] == '\0') {
393 user
= get_username();
395 bump("Empty user name");
398 tell_user(stderr
, "Guessing user name: %s", user
);
399 strncpy(cfg
.username
, user
, sizeof(cfg
.username
) - 1);
400 cfg
.username
[sizeof(cfg
.username
) - 1] = '\0';
406 * Disable scary things which shouldn't be enabled for simple
407 * things like SCP and SFTP: agent forwarding, port forwarding,
412 cfg
.portfwd
[0] = cfg
.portfwd
[1] = '\0';
415 * Set up main and possibly fallback command depending on
416 * options specified by user.
417 * Attempt to start the SFTP subsystem as a first choice,
418 * falling back to the provided scp command if that fails.
420 cfg
.remote_cmd_ptr2
= NULL
;
422 /* First choice is SFTP subsystem. */
423 main_cmd_is_sftp
= 1;
424 strcpy(cfg
.remote_cmd
, "sftp");
425 cfg
.ssh_subsys
= TRUE
;
427 /* Fallback is to use the provided scp command. */
428 fallback_cmd_is_sftp
= 0;
429 cfg
.remote_cmd_ptr2
= cmd
;
430 cfg
.ssh_subsys2
= FALSE
;
432 /* Since we're not going to try SCP, we may as well try
433 * harder to find an SFTP server, since in the current
434 * implementation we have a spare slot. */
435 fallback_cmd_is_sftp
= 1;
436 /* see psftp.c for full explanation of this kludge */
437 cfg
.remote_cmd_ptr2
=
438 "test -x /usr/lib/sftp-server && exec /usr/lib/sftp-server\n"
439 "test -x /usr/local/lib/sftp-server && exec /usr/local/lib/sftp-server\n"
441 cfg
.ssh_subsys2
= FALSE
;
444 /* Don't try SFTP at all; just try the scp command. */
445 main_cmd_is_sftp
= 0;
446 cfg
.remote_cmd_ptr
= cmd
;
447 cfg
.ssh_subsys
= FALSE
;
453 err
= back
->init(NULL
, &backhandle
, &cfg
, cfg
.host
, cfg
.port
, &realhost
,0);
455 bump("ssh_init: %s", err
);
456 logctx
= log_init(NULL
, &cfg
);
457 back
->provide_logctx(backhandle
, logctx
);
458 console_provide_logctx(logctx
);
460 if (verbose
&& realhost
!= NULL
)
461 tell_user(stderr
, "Connected to %s\n", realhost
);
466 * Update statistic information about current file.
468 static void print_stats(char *name
, unsigned long size
, unsigned long done
,
469 time_t start
, time_t now
)
478 elap
= (unsigned long) difftime(now
, start
);
481 ratebs
= (float) done
/ elap
;
483 ratebs
= (float) done
;
488 eta
= (unsigned long) ((size
- done
) / ratebs
);
489 etastr
= dupprintf("%02ld:%02ld:%02ld",
490 eta
/ 3600, (eta
% 3600) / 60, eta
% 60);
492 pct
= (int) (100 * (done
* 1.0 / size
));
495 gui_update_stats(name
, size
, pct
, elap
, done
, eta
,
496 (unsigned long) ratebs
);
498 len
= printf("\r%-25.25s | %10ld kB | %5.1f kB/s | ETA: %8s | %3d%%",
499 name
, done
/ 1024, ratebs
/ 1024.0, etastr
, pct
);
500 if (len
< prev_stats_len
)
501 printf("%*s", prev_stats_len
- len
, "");
502 prev_stats_len
= len
;
514 * Find a colon in str and return a pointer to the colon.
515 * This is used to separate hostname from filename.
517 static char *colon(char *str
)
519 /* We ignore a leading colon, since the hostname cannot be
520 empty. We also ignore a colon as second character because
521 of filenames like f:myfile.txt. */
522 if (str
[0] == '\0' || str
[0] == ':' || str
[1] == ':')
524 while (*str
!= '\0' && *str
!= ':' && *str
!= '/' && *str
!= '\\')
533 * Return a pointer to the portion of str that comes after the last
534 * slash (or backslash or colon, if `local' is TRUE).
536 static char *stripslashes(char *str
, int local
)
541 p
= strchr(str
, ':');
545 p
= strrchr(str
, '/');
549 p
= strrchr(str
, '\\');
557 * Determine whether a string is entirely composed of dots.
559 static int is_dots(char *str
)
561 return str
[strspn(str
, ".")] == '\0';
565 * Wait for a response from the other side.
566 * Return 0 if ok, -1 if error.
568 static int response(void)
570 char ch
, resp
, rbuf
[2048];
573 if (ssh_scp_recv((unsigned char *) &resp
, 1) <= 0)
574 bump("Lost connection");
584 case 2: /* fatal error */
586 if (ssh_scp_recv((unsigned char *) &ch
, 1) <= 0)
587 bump("Protocol error: Lost connection");
589 } while (p
< sizeof(rbuf
) && ch
!= '\n');
592 tell_user(stderr
, "%s\n", rbuf
);
600 int sftp_recvdata(char *buf
, int len
)
602 return ssh_scp_recv((unsigned char *) buf
, len
);
604 int sftp_senddata(char *buf
, int len
)
606 back
->send(backhandle
, buf
, len
);
610 /* ----------------------------------------------------------------------
611 * sftp-based replacement for the hacky `pscp -ls'.
613 static int sftp_ls_compare(const void *av
, const void *bv
)
615 const struct fxp_name
*a
= (const struct fxp_name
*) av
;
616 const struct fxp_name
*b
= (const struct fxp_name
*) bv
;
617 return strcmp(a
->filename
, b
->filename
);
619 void scp_sftp_listdir(char *dirname
)
621 struct fxp_handle
*dirh
;
622 struct fxp_names
*names
;
623 struct fxp_name
*ournames
;
624 struct sftp_packet
*pktin
;
625 struct sftp_request
*req
, *rreq
;
626 int nnames
, namesize
;
630 tell_user(stderr
, "unable to initialise SFTP: %s", fxp_error());
635 printf("Listing directory %s\n", dirname
);
637 sftp_register(req
= fxp_opendir_send(dirname
));
638 rreq
= sftp_find_request(pktin
= sftp_recv());
640 dirh
= fxp_opendir_recv(pktin
, rreq
);
643 printf("Unable to open %s: %s\n", dirname
, fxp_error());
645 nnames
= namesize
= 0;
650 sftp_register(req
= fxp_readdir_send(dirh
));
651 rreq
= sftp_find_request(pktin
= sftp_recv());
653 names
= fxp_readdir_recv(pktin
, rreq
);
656 if (fxp_error_type() == SSH_FX_EOF
)
658 printf("Reading directory %s: %s\n", dirname
, fxp_error());
661 if (names
->nnames
== 0) {
662 fxp_free_names(names
);
666 if (nnames
+ names
->nnames
>= namesize
) {
667 namesize
+= names
->nnames
+ 128;
668 ournames
= sresize(ournames
, namesize
, struct fxp_name
);
671 for (i
= 0; i
< names
->nnames
; i
++)
672 ournames
[nnames
++] = names
->names
[i
];
674 names
->nnames
= 0; /* prevent free_names */
675 fxp_free_names(names
);
677 sftp_register(req
= fxp_close_send(dirh
));
678 rreq
= sftp_find_request(pktin
= sftp_recv());
680 fxp_close_recv(pktin
, rreq
);
683 * Now we have our filenames. Sort them by actual file
684 * name, and then output the longname parts.
686 qsort(ournames
, nnames
, sizeof(*ournames
), sftp_ls_compare
);
691 for (i
= 0; i
< nnames
; i
++)
692 printf("%s\n", ournames
[i
].longname
);
696 /* ----------------------------------------------------------------------
697 * Helper routines that contain the actual SCP protocol elements,
698 * implemented both as SCP1 and SFTP.
701 static struct scp_sftp_dirstack
{
702 struct scp_sftp_dirstack
*next
;
703 struct fxp_name
*names
;
704 int namepos
, namelen
;
707 int matched_something
; /* wildcard match set was non-empty */
708 } *scp_sftp_dirstack_head
;
709 static char *scp_sftp_remotepath
, *scp_sftp_currentname
;
710 static char *scp_sftp_wildcard
;
711 static int scp_sftp_targetisdir
, scp_sftp_donethistarget
;
712 static int scp_sftp_preserve
, scp_sftp_recursive
;
713 static unsigned long scp_sftp_mtime
, scp_sftp_atime
;
714 static int scp_has_times
;
715 static struct fxp_handle
*scp_sftp_filehandle
;
716 static struct fxp_xfer
*scp_sftp_xfer
;
717 static uint64 scp_sftp_fileoffset
;
719 void scp_source_setup(char *target
, int shouldbedir
)
723 * Find out whether the target filespec is in fact a
726 struct sftp_packet
*pktin
;
727 struct sftp_request
*req
, *rreq
;
728 struct fxp_attrs attrs
;
732 tell_user(stderr
, "unable to initialise SFTP: %s", fxp_error());
737 sftp_register(req
= fxp_stat_send(target
));
738 rreq
= sftp_find_request(pktin
= sftp_recv());
740 ret
= fxp_stat_recv(pktin
, rreq
, &attrs
);
742 if (!ret
|| !(attrs
.flags
& SSH_FILEXFER_ATTR_PERMISSIONS
))
743 scp_sftp_targetisdir
= 0;
745 scp_sftp_targetisdir
= (attrs
.permissions
& 0040000) != 0;
747 if (shouldbedir
&& !scp_sftp_targetisdir
) {
748 bump("pscp: remote filespec %s: not a directory\n", target
);
751 scp_sftp_remotepath
= dupstr(target
);
759 int scp_send_errmsg(char *str
)
762 /* do nothing; we never need to send our errors to the server */
764 back
->send(backhandle
, "\001", 1);/* scp protocol error prefix */
765 back
->send(backhandle
, str
, strlen(str
));
767 return 0; /* can't fail */
770 int scp_send_filetimes(unsigned long mtime
, unsigned long atime
)
773 scp_sftp_mtime
= mtime
;
774 scp_sftp_atime
= atime
;
779 sprintf(buf
, "T%lu 0 %lu 0\n", mtime
, atime
);
780 back
->send(backhandle
, buf
, strlen(buf
));
785 int scp_send_filename(char *name
, unsigned long size
, int modes
)
789 struct sftp_packet
*pktin
;
790 struct sftp_request
*req
, *rreq
;
792 if (scp_sftp_targetisdir
) {
793 fullname
= dupcat(scp_sftp_remotepath
, "/", name
, NULL
);
795 fullname
= dupstr(scp_sftp_remotepath
);
798 sftp_register(req
= fxp_open_send(fullname
, SSH_FXF_WRITE
|
799 SSH_FXF_CREAT
| SSH_FXF_TRUNC
));
800 rreq
= sftp_find_request(pktin
= sftp_recv());
802 scp_sftp_filehandle
= fxp_open_recv(pktin
, rreq
);
804 if (!scp_sftp_filehandle
) {
805 tell_user(stderr
, "pscp: unable to open %s: %s",
806 fullname
, fxp_error());
810 scp_sftp_fileoffset
= uint64_make(0, 0);
811 scp_sftp_xfer
= xfer_upload_init(scp_sftp_filehandle
,
812 scp_sftp_fileoffset
);
817 sprintf(buf
, "C%04o %lu ", modes
, size
);
818 back
->send(backhandle
, buf
, strlen(buf
));
819 back
->send(backhandle
, name
, strlen(name
));
820 back
->send(backhandle
, "\n", 1);
825 int scp_send_filedata(char *data
, int len
)
829 struct sftp_packet
*pktin
;
831 if (!scp_sftp_filehandle
) {
835 while (!xfer_upload_ready(scp_sftp_xfer
)) {
837 ret
= xfer_upload_gotpkt(scp_sftp_xfer
, pktin
);
839 tell_user(stderr
, "error while writing: %s\n", fxp_error());
845 xfer_upload_data(scp_sftp_xfer
, data
, len
);
847 scp_sftp_fileoffset
= uint64_add32(scp_sftp_fileoffset
, len
);
850 int bufsize
= back
->send(backhandle
, data
, len
);
853 * If the network transfer is backing up - that is, the
854 * remote site is not accepting data as fast as we can
855 * produce it - then we must loop on network events until
856 * we have space in the buffer again.
858 while (bufsize
> MAX_SCP_BUFSIZE
) {
859 if (ssh_sftp_loop_iteration() < 0)
861 bufsize
= back
->sendbuffer(backhandle
);
868 int scp_send_finish(void)
871 struct fxp_attrs attrs
;
872 struct sftp_packet
*pktin
;
873 struct sftp_request
*req
, *rreq
;
876 while (!xfer_done(scp_sftp_xfer
)) {
878 xfer_upload_gotpkt(scp_sftp_xfer
, pktin
);
880 xfer_cleanup(scp_sftp_xfer
);
882 if (!scp_sftp_filehandle
) {
886 attrs
.flags
= SSH_FILEXFER_ATTR_ACMODTIME
;
887 attrs
.atime
= scp_sftp_atime
;
888 attrs
.mtime
= scp_sftp_mtime
;
889 sftp_register(req
= fxp_fsetstat_send(scp_sftp_filehandle
, attrs
));
890 rreq
= sftp_find_request(pktin
= sftp_recv());
892 ret
= fxp_fsetstat_recv(pktin
, rreq
);
894 tell_user(stderr
, "unable to set file times: %s\n", fxp_error());
898 sftp_register(req
= fxp_close_send(scp_sftp_filehandle
));
899 rreq
= sftp_find_request(pktin
= sftp_recv());
901 fxp_close_recv(pktin
, rreq
);
905 back
->send(backhandle
, "", 1);
910 char *scp_save_remotepath(void)
913 return scp_sftp_remotepath
;
918 void scp_restore_remotepath(char *data
)
921 scp_sftp_remotepath
= data
;
924 int scp_send_dirname(char *name
, int modes
)
929 struct fxp_attrs attrs
;
930 struct sftp_packet
*pktin
;
931 struct sftp_request
*req
, *rreq
;
934 if (scp_sftp_targetisdir
) {
935 fullname
= dupcat(scp_sftp_remotepath
, "/", name
, NULL
);
937 fullname
= dupstr(scp_sftp_remotepath
);
941 * We don't worry about whether we managed to create the
942 * directory, because if it exists already it's OK just to
943 * use it. Instead, we will stat it afterwards, and if it
944 * exists and is a directory we will assume we were either
945 * successful or it didn't matter.
947 sftp_register(req
= fxp_mkdir_send(fullname
));
948 rreq
= sftp_find_request(pktin
= sftp_recv());
950 ret
= fxp_mkdir_recv(pktin
, rreq
);
955 err
= "server reported no error";
957 sftp_register(req
= fxp_stat_send(fullname
));
958 rreq
= sftp_find_request(pktin
= sftp_recv());
960 ret
= fxp_stat_recv(pktin
, rreq
, &attrs
);
962 if (!ret
|| !(attrs
.flags
& SSH_FILEXFER_ATTR_PERMISSIONS
) ||
963 !(attrs
.permissions
& 0040000)) {
964 tell_user(stderr
, "unable to create directory %s: %s",
970 scp_sftp_remotepath
= fullname
;
975 sprintf(buf
, "D%04o 0 ", modes
);
976 back
->send(backhandle
, buf
, strlen(buf
));
977 back
->send(backhandle
, name
, strlen(name
));
978 back
->send(backhandle
, "\n", 1);
983 int scp_send_enddir(void)
986 sfree(scp_sftp_remotepath
);
989 back
->send(backhandle
, "E\n", 2);
995 * Yes, I know; I have an scp_sink_setup _and_ an scp_sink_init.
996 * That's bad. The difference is that scp_sink_setup is called once
997 * right at the start, whereas scp_sink_init is called to
998 * initialise every level of recursion in the protocol.
1000 int scp_sink_setup(char *source
, int preserve
, int recursive
)
1006 tell_user(stderr
, "unable to initialise SFTP: %s", fxp_error());
1011 * It's possible that the source string we've been given
1012 * contains a wildcard. If so, we must split the directory
1013 * away from the wildcard itself (throwing an error if any
1014 * wildcardness comes before the final slash) and arrange
1015 * things so that a dirstack entry will be set up.
1017 newsource
= snewn(1+strlen(source
), char);
1018 if (!wc_unescape(newsource
, source
)) {
1019 /* Yes, here we go; it's a wildcard. Bah. */
1020 char *dupsource
, *lastpart
, *dirpart
, *wildcard
;
1021 dupsource
= dupstr(source
);
1022 lastpart
= stripslashes(dupsource
, 0);
1023 wildcard
= dupstr(lastpart
);
1025 if (*dupsource
&& dupsource
[1]) {
1027 * The remains of dupsource are at least two
1028 * characters long, meaning the pathname wasn't
1029 * empty or just `/'. Hence, we remove the trailing
1032 lastpart
[-1] = '\0';
1033 } else if (!*dupsource
) {
1035 * The remains of dupsource are _empty_ - the whole
1036 * pathname was a wildcard. Hence we need to
1037 * replace it with ".".
1040 dupsource
= dupstr(".");
1044 * Now we have separated our string into dupsource (the
1045 * directory part) and wildcard. Both of these will
1046 * need freeing at some point. Next step is to remove
1047 * wildcard escapes from the directory part, throwing
1048 * an error if it contains a real wildcard.
1050 dirpart
= snewn(1+strlen(dupsource
), char);
1051 if (!wc_unescape(dirpart
, dupsource
)) {
1052 tell_user(stderr
, "%s: multiple-level wildcards unsupported",
1062 * Now we have dirpart (unescaped, ie a valid remote
1063 * path), and wildcard (a wildcard). This will be
1064 * sufficient to arrange a dirstack entry.
1066 scp_sftp_remotepath
= dirpart
;
1067 scp_sftp_wildcard
= wildcard
;
1070 scp_sftp_remotepath
= newsource
;
1071 scp_sftp_wildcard
= NULL
;
1073 scp_sftp_preserve
= preserve
;
1074 scp_sftp_recursive
= recursive
;
1075 scp_sftp_donethistarget
= 0;
1076 scp_sftp_dirstack_head
= NULL
;
1081 int scp_sink_init(void)
1084 back
->send(backhandle
, "", 1);
1089 #define SCP_SINK_FILE 1
1090 #define SCP_SINK_DIR 2
1091 #define SCP_SINK_ENDDIR 3
1092 #define SCP_SINK_RETRY 4 /* not an action; just try again */
1093 struct scp_sink_action
{
1094 int action
; /* FILE, DIR, ENDDIR */
1095 char *buf
; /* will need freeing after use */
1096 char *name
; /* filename or dirname (not ENDDIR) */
1097 int mode
; /* access mode (not ENDDIR) */
1098 unsigned long size
; /* file size (not ENDDIR) */
1099 int settime
; /* 1 if atime and mtime are filled */
1100 unsigned long atime
, mtime
; /* access times for the file */
1103 int scp_get_sink_action(struct scp_sink_action
*act
)
1107 int must_free_fname
;
1108 struct fxp_attrs attrs
;
1109 struct sftp_packet
*pktin
;
1110 struct sftp_request
*req
, *rreq
;
1113 if (!scp_sftp_dirstack_head
) {
1114 if (!scp_sftp_donethistarget
) {
1116 * Simple case: we are only dealing with one file.
1118 fname
= scp_sftp_remotepath
;
1119 must_free_fname
= 0;
1120 scp_sftp_donethistarget
= 1;
1123 * Even simpler case: one file _which we've done_.
1124 * Return 1 (finished).
1130 * We're now in the middle of stepping through a list
1131 * of names returned from fxp_readdir(); so let's carry
1134 struct scp_sftp_dirstack
*head
= scp_sftp_dirstack_head
;
1135 while (head
->namepos
< head
->namelen
&&
1136 (is_dots(head
->names
[head
->namepos
].filename
) ||
1138 !wc_match(head
->wildcard
,
1139 head
->names
[head
->namepos
].filename
))))
1140 head
->namepos
++; /* skip . and .. */
1141 if (head
->namepos
< head
->namelen
) {
1142 head
->matched_something
= 1;
1143 fname
= dupcat(head
->dirpath
, "/",
1144 head
->names
[head
->namepos
++].filename
,
1146 must_free_fname
= 1;
1149 * We've come to the end of the list; pop it off
1150 * the stack and return an ENDDIR action (or RETRY
1151 * if this was a wildcard match).
1153 if (head
->wildcard
) {
1154 act
->action
= SCP_SINK_RETRY
;
1155 if (!head
->matched_something
) {
1156 tell_user(stderr
, "pscp: wildcard '%s' matched "
1157 "no files", head
->wildcard
);
1160 sfree(head
->wildcard
);
1163 act
->action
= SCP_SINK_ENDDIR
;
1166 sfree(head
->dirpath
);
1168 scp_sftp_dirstack_head
= head
->next
;
1176 * Now we have a filename. Stat it, and see if it's a file
1179 sftp_register(req
= fxp_stat_send(fname
));
1180 rreq
= sftp_find_request(pktin
= sftp_recv());
1181 assert(rreq
== req
);
1182 ret
= fxp_stat_recv(pktin
, rreq
, &attrs
);
1184 if (!ret
|| !(attrs
.flags
& SSH_FILEXFER_ATTR_PERMISSIONS
)) {
1185 tell_user(stderr
, "unable to identify %s: %s", fname
,
1186 ret ?
"file type not supplied" : fxp_error());
1191 if (attrs
.permissions
& 0040000) {
1192 struct scp_sftp_dirstack
*newitem
;
1193 struct fxp_handle
*dirhandle
;
1194 int nnames
, namesize
;
1195 struct fxp_name
*ournames
;
1196 struct fxp_names
*names
;
1199 * It's a directory. If we're not in recursive mode,
1200 * this merits a complaint (which is fatal if the name
1201 * was specified directly, but not if it was matched by
1204 * We skip this complaint completely if
1205 * scp_sftp_wildcard is set, because that's an
1206 * indication that we're not actually supposed to
1207 * _recursively_ transfer the dir, just scan it for
1208 * things matching the wildcard.
1210 if (!scp_sftp_recursive
&& !scp_sftp_wildcard
) {
1211 tell_user(stderr
, "pscp: %s: is a directory", fname
);
1213 if (must_free_fname
) sfree(fname
);
1214 if (scp_sftp_dirstack_head
) {
1215 act
->action
= SCP_SINK_RETRY
;
1223 * Otherwise, the fun begins. We must fxp_opendir() the
1224 * directory, slurp the filenames into memory, return
1225 * SCP_SINK_DIR (unless this is a wildcard match), and
1226 * set targetisdir. The next time we're called, we will
1227 * run through the list of filenames one by one,
1228 * matching them against a wildcard if present.
1230 * If targetisdir is _already_ set (meaning we're
1231 * already in the middle of going through another such
1232 * list), we must push the other (target,namelist) pair
1235 sftp_register(req
= fxp_opendir_send(fname
));
1236 rreq
= sftp_find_request(pktin
= sftp_recv());
1237 assert(rreq
== req
);
1238 dirhandle
= fxp_opendir_recv(pktin
, rreq
);
1241 tell_user(stderr
, "scp: unable to open directory %s: %s",
1242 fname
, fxp_error());
1243 if (must_free_fname
) sfree(fname
);
1247 nnames
= namesize
= 0;
1252 sftp_register(req
= fxp_readdir_send(dirhandle
));
1253 rreq
= sftp_find_request(pktin
= sftp_recv());
1254 assert(rreq
== req
);
1255 names
= fxp_readdir_recv(pktin
, rreq
);
1257 if (names
== NULL
) {
1258 if (fxp_error_type() == SSH_FX_EOF
)
1260 tell_user(stderr
, "scp: reading directory %s: %s\n",
1261 fname
, fxp_error());
1262 if (must_free_fname
) sfree(fname
);
1267 if (names
->nnames
== 0) {
1268 fxp_free_names(names
);
1271 if (nnames
+ names
->nnames
>= namesize
) {
1272 namesize
+= names
->nnames
+ 128;
1273 ournames
= sresize(ournames
, namesize
, struct fxp_name
);
1275 for (i
= 0; i
< names
->nnames
; i
++)
1276 ournames
[nnames
++] = names
->names
[i
];
1277 names
->nnames
= 0; /* prevent free_names */
1278 fxp_free_names(names
);
1280 sftp_register(req
= fxp_close_send(dirhandle
));
1281 rreq
= sftp_find_request(pktin
= sftp_recv());
1282 assert(rreq
== req
);
1283 fxp_close_recv(pktin
, rreq
);
1285 newitem
= snew(struct scp_sftp_dirstack
);
1286 newitem
->next
= scp_sftp_dirstack_head
;
1287 newitem
->names
= ournames
;
1288 newitem
->namepos
= 0;
1289 newitem
->namelen
= nnames
;
1290 if (must_free_fname
)
1291 newitem
->dirpath
= fname
;
1293 newitem
->dirpath
= dupstr(fname
);
1294 if (scp_sftp_wildcard
) {
1295 newitem
->wildcard
= scp_sftp_wildcard
;
1296 newitem
->matched_something
= 0;
1297 scp_sftp_wildcard
= NULL
;
1299 newitem
->wildcard
= NULL
;
1301 scp_sftp_dirstack_head
= newitem
;
1303 if (newitem
->wildcard
) {
1304 act
->action
= SCP_SINK_RETRY
;
1306 act
->action
= SCP_SINK_DIR
;
1307 act
->buf
= dupstr(stripslashes(fname
, 0));
1308 act
->name
= act
->buf
;
1309 act
->size
= 0; /* duhh, it's a directory */
1310 act
->mode
= 07777 & attrs
.permissions
;
1311 if (scp_sftp_preserve
&&
1312 (attrs
.flags
& SSH_FILEXFER_ATTR_ACMODTIME
)) {
1313 act
->atime
= attrs
.atime
;
1314 act
->mtime
= attrs
.mtime
;
1323 * It's a file. Return SCP_SINK_FILE.
1325 act
->action
= SCP_SINK_FILE
;
1326 act
->buf
= dupstr(stripslashes(fname
, 0));
1327 act
->name
= act
->buf
;
1328 if (attrs
.flags
& SSH_FILEXFER_ATTR_SIZE
) {
1329 if (uint64_compare(attrs
.size
,
1330 uint64_make(0, ULONG_MAX
)) > 0) {
1331 act
->size
= ULONG_MAX
; /* *boggle* */
1333 act
->size
= attrs
.size
.lo
;
1335 act
->size
= ULONG_MAX
; /* no idea */
1336 act
->mode
= 07777 & attrs
.permissions
;
1337 if (scp_sftp_preserve
&&
1338 (attrs
.flags
& SSH_FILEXFER_ATTR_ACMODTIME
)) {
1339 act
->atime
= attrs
.atime
;
1340 act
->mtime
= attrs
.mtime
;
1344 if (must_free_fname
)
1345 scp_sftp_currentname
= fname
;
1347 scp_sftp_currentname
= dupstr(fname
);
1362 if (ssh_scp_recv((unsigned char *) &ch
, 1) <= 0)
1365 bump("Protocol error: Unexpected newline");
1369 if (ssh_scp_recv((unsigned char *) &ch
, 1) <= 0)
1370 bump("Lost connection");
1373 act
->buf
= sresize(act
->buf
, bufsize
, char);
1376 } while (ch
!= '\n');
1377 act
->buf
[i
- 1] = '\0';
1379 case '\01': /* error */
1380 tell_user(stderr
, "%s\n", act
->buf
);
1382 continue; /* go round again */
1383 case '\02': /* fatal error */
1384 bump("%s", act
->buf
);
1386 back
->send(backhandle
, "", 1);
1387 act
->action
= SCP_SINK_ENDDIR
;
1390 if (sscanf(act
->buf
, "%ld %*d %ld %*d",
1391 &act
->mtime
, &act
->atime
) == 2) {
1393 back
->send(backhandle
, "", 1);
1394 continue; /* go round again */
1396 bump("Protocol error: Illegal time format");
1399 act
->action
= (action
== 'C' ? SCP_SINK_FILE
: SCP_SINK_DIR
);
1402 bump("Protocol error: Expected control record");
1405 * We will go round this loop only once, unless we hit
1412 * If we get here, we must have seen SCP_SINK_FILE or
1415 if (sscanf(act
->buf
, "%o %lu %n", &act
->mode
, &act
->size
, &i
) != 2)
1416 bump("Protocol error: Illegal file descriptor format");
1417 act
->name
= act
->buf
+ i
;
1422 int scp_accept_filexfer(void)
1425 struct sftp_packet
*pktin
;
1426 struct sftp_request
*req
, *rreq
;
1428 sftp_register(req
= fxp_open_send(scp_sftp_currentname
, SSH_FXF_READ
));
1429 rreq
= sftp_find_request(pktin
= sftp_recv());
1430 assert(rreq
== req
);
1431 scp_sftp_filehandle
= fxp_open_recv(pktin
, rreq
);
1433 if (!scp_sftp_filehandle
) {
1434 tell_user(stderr
, "pscp: unable to open %s: %s",
1435 scp_sftp_currentname
, fxp_error());
1439 scp_sftp_fileoffset
= uint64_make(0, 0);
1440 scp_sftp_xfer
= xfer_download_init(scp_sftp_filehandle
,
1441 scp_sftp_fileoffset
);
1442 sfree(scp_sftp_currentname
);
1445 back
->send(backhandle
, "", 1);
1446 return 0; /* can't fail */
1450 int scp_recv_filedata(char *data
, int len
)
1453 struct sftp_packet
*pktin
;
1457 xfer_download_queue(scp_sftp_xfer
);
1458 pktin
= sftp_recv();
1459 ret
= xfer_download_gotpkt(scp_sftp_xfer
, pktin
);
1462 tell_user(stderr
, "pscp: error while reading: %s", fxp_error());
1467 if (xfer_download_data(scp_sftp_xfer
, &vbuf
, &actuallen
)) {
1469 * This assertion relies on the fact that the natural
1470 * block size used in the xfer manager is at most that
1471 * used in this module. I don't like crossing layers in
1472 * this way, but it'll do for now.
1474 assert(actuallen
<= len
);
1475 memcpy(data
, vbuf
, actuallen
);
1480 scp_sftp_fileoffset
= uint64_add32(scp_sftp_fileoffset
, actuallen
);
1484 return ssh_scp_recv((unsigned char *) data
, len
);
1488 int scp_finish_filerecv(void)
1491 struct sftp_packet
*pktin
;
1492 struct sftp_request
*req
, *rreq
;
1495 * Ensure that xfer_done() will work correctly, so we can
1496 * clean up any outstanding requests from the file
1499 xfer_set_error(scp_sftp_xfer
);
1500 while (!xfer_done(scp_sftp_xfer
)) {
1504 pktin
= sftp_recv();
1505 xfer_download_gotpkt(scp_sftp_xfer
, pktin
);
1506 if (xfer_download_data(scp_sftp_xfer
, &vbuf
, &len
))
1509 xfer_cleanup(scp_sftp_xfer
);
1511 sftp_register(req
= fxp_close_send(scp_sftp_filehandle
));
1512 rreq
= sftp_find_request(pktin
= sftp_recv());
1513 assert(rreq
== req
);
1514 fxp_close_recv(pktin
, rreq
);
1517 back
->send(backhandle
, "", 1);
1522 /* ----------------------------------------------------------------------
1523 * Send an error message to the other side and to the screen.
1524 * Increment error counter.
1526 static void run_err(const char *fmt
, ...)
1532 str
= dupvprintf(fmt
, ap
);
1533 str2
= dupcat("scp: ", str
, "\n", NULL
);
1535 scp_send_errmsg(str2
);
1536 tell_user(stderr
, "%s", str2
);
1542 * Execute the source part of the SCP protocol.
1544 static void source(char *src
)
1547 unsigned long mtime
, atime
;
1552 unsigned long stat_bytes
;
1553 time_t stat_starttime
, stat_lasttime
;
1555 attr
= file_type(src
);
1556 if (attr
== FILE_TYPE_NONEXISTENT
||
1557 attr
== FILE_TYPE_WEIRD
) {
1558 run_err("%s: %s file or directory", src
,
1559 (attr
== FILE_TYPE_WEIRD ?
"Not a" : "No such"));
1563 if (attr
== FILE_TYPE_DIRECTORY
) {
1566 * Avoid . and .. directories.
1569 p
= strrchr(src
, '/');
1571 p
= strrchr(src
, '\\');
1576 if (!strcmp(p
, ".") || !strcmp(p
, ".."))
1577 /* skip . and .. */ ;
1581 run_err("%s: not a regular file", src
);
1586 if ((last
= strrchr(src
, '/')) == NULL
)
1590 if (strrchr(last
, '\\') != NULL
)
1591 last
= strrchr(last
, '\\') + 1;
1592 if (last
== src
&& strchr(src
, ':') != NULL
)
1593 last
= strchr(src
, ':') + 1;
1595 f
= open_existing_file(src
, &size
, &mtime
, &atime
);
1597 run_err("%s: Cannot open file", src
);
1601 if (scp_send_filetimes(mtime
, atime
))
1606 tell_user(stderr
, "Sending file %s, size=%lu", last
, size
);
1607 if (scp_send_filename(last
, size
, 0644))
1611 stat_starttime
= time(NULL
);
1614 for (i
= 0; i
< size
; i
+= 4096) {
1615 char transbuf
[4096];
1620 if ((j
= read_from_file(f
, transbuf
, k
)) != k
) {
1623 bump("%s: Read error", src
);
1625 if (scp_send_filedata(transbuf
, k
))
1626 bump("%s: Network error occurred", src
);
1630 if (time(NULL
) != stat_lasttime
|| i
+ k
== size
) {
1631 stat_lasttime
= time(NULL
);
1632 print_stats(last
, size
, stat_bytes
,
1633 stat_starttime
, stat_lasttime
);
1640 (void) scp_send_finish();
1644 * Recursively send the contents of a directory.
1646 static void rsource(char *src
)
1652 if ((last
= strrchr(src
, '/')) == NULL
)
1656 if (strrchr(last
, '\\') != NULL
)
1657 last
= strrchr(last
, '\\') + 1;
1658 if (last
== src
&& strchr(src
, ':') != NULL
)
1659 last
= strchr(src
, ':') + 1;
1661 /* maybe send filetime */
1663 save_target
= scp_save_remotepath();
1666 tell_user(stderr
, "Entering directory: %s", last
);
1667 if (scp_send_dirname(last
, 0755))
1670 dir
= open_directory(src
);
1673 while ((filename
= read_filename(dir
)) != NULL
) {
1674 char *foundfile
= dupcat(src
, "/", filename
, NULL
);
1680 close_directory(dir
);
1682 (void) scp_send_enddir();
1684 scp_restore_remotepath(save_target
);
1688 * Execute the sink part of the SCP protocol.
1690 static void sink(char *targ
, char *src
)
1697 unsigned long received
;
1699 unsigned long stat_bytes
;
1700 time_t stat_starttime
, stat_lasttime
;
1703 attr
= file_type(targ
);
1704 if (attr
== FILE_TYPE_DIRECTORY
)
1707 if (targetshouldbedirectory
&& !targisdir
)
1708 bump("%s: Not a directory", targ
);
1712 struct scp_sink_action act
;
1713 if (scp_get_sink_action(&act
))
1716 if (act
.action
== SCP_SINK_ENDDIR
)
1719 if (act
.action
== SCP_SINK_RETRY
)
1724 * Prevent the remote side from maliciously writing to
1725 * files outside the target area by sending a filename
1726 * containing `../'. In fact, it shouldn't be sending
1727 * filenames with any slashes or colons in at all; so
1728 * we'll find the last slash, backslash or colon in the
1729 * filename and use only the part after that. (And
1732 * In addition, we also ensure here that if we're
1733 * copying a single file and the target is a directory
1734 * (common usage: `pscp host:filename .') the remote
1735 * can't send us a _different_ file name. We can
1736 * distinguish this case because `src' will be non-NULL
1737 * and the last component of that will fail to match
1738 * (the last component of) the name sent.
1740 * Well, not always; if `src' is a wildcard, we do
1741 * expect to get back filenames that don't correspond
1742 * exactly to it. Ideally in this case, we would like
1743 * to ensure that the returned filename actually
1744 * matches the wildcard pattern - but one of SCP's
1745 * protocol infelicities is that wildcard matching is
1746 * done at the server end _by the server's rules_ and
1747 * so in general this is infeasible. Hence, we only
1748 * accept filenames that don't correspond to `src' if
1749 * unsafe mode is enabled or we are using SFTP (which
1750 * resolves remote wildcards on the client side and can
1753 char *striptarget
, *stripsrc
;
1755 striptarget
= stripslashes(act
.name
, 1);
1756 if (striptarget
!= act
.name
) {
1757 tell_user(stderr
, "warning: remote host sent a compound"
1758 " pathname '%s'", act
.name
);
1759 tell_user(stderr
, " renaming local file to '%s'",
1764 * Also check to see if the target filename is '.' or
1765 * '..', or indeed '...' and so on because Windows
1766 * appears to interpret those like '..'.
1768 if (is_dots(striptarget
)) {
1769 bump("security violation: remote host attempted to write to"
1770 " a '.' or '..' path!");
1774 stripsrc
= stripslashes(src
, 1);
1775 if (strcmp(striptarget
, stripsrc
) &&
1776 !using_sftp
&& !scp_unsafe_mode
) {
1777 tell_user(stderr
, "warning: remote host tried to write "
1778 "to a file called '%s'", striptarget
);
1779 tell_user(stderr
, " when we requested a file "
1780 "called '%s'.", stripsrc
);
1781 tell_user(stderr
, " If this is a wildcard, "
1782 "consider upgrading to SSH 2 or using");
1783 tell_user(stderr
, " the '-unsafe' option. Renaming"
1784 " of this file has been disallowed.");
1785 /* Override the name the server provided with our own. */
1786 striptarget
= stripsrc
;
1790 if (targ
[0] != '\0')
1791 destfname
= dir_file_cat(targ
, striptarget
);
1793 destfname
= dupstr(striptarget
);
1796 * In this branch of the if, the target area is a
1797 * single file with an explicitly specified name in any
1798 * case, so there's no danger.
1800 destfname
= dupstr(targ
);
1802 attr
= file_type(destfname
);
1803 exists
= (attr
!= FILE_TYPE_NONEXISTENT
);
1805 if (act
.action
== SCP_SINK_DIR
) {
1806 if (exists
&& attr
!= FILE_TYPE_DIRECTORY
) {
1807 run_err("%s: Not a directory", destfname
);
1811 if (!create_directory(destfname
)) {
1812 run_err("%s: Cannot create directory", destfname
);
1816 sink(destfname
, NULL
);
1817 /* can we set the timestamp for directories ? */
1821 f
= open_new_file(destfname
);
1823 run_err("%s: Cannot create file", destfname
);
1827 if (scp_accept_filexfer())
1831 stat_starttime
= time(NULL
);
1833 stat_name
= stripslashes(destfname
, 1);
1836 while (received
< act
.size
) {
1837 char transbuf
[4096];
1838 unsigned long blksize
;
1841 if (blksize
> (act
.size
- received
))
1842 blksize
= act
.size
- received
;
1843 read
= scp_recv_filedata(transbuf
, (int)blksize
);
1845 bump("Lost connection");
1848 if (write_to_file(f
, transbuf
, read
) != (int)read
) {
1850 /* FIXME: in sftp we can actually abort the transfer */
1852 printf("\r%-25.25s | %50s\n",
1854 "Write error.. waiting for end of file");
1859 if (time(NULL
) > stat_lasttime
||
1860 received
+ read
== act
.size
) {
1861 stat_lasttime
= time(NULL
);
1862 print_stats(stat_name
, act
.size
, stat_bytes
,
1863 stat_starttime
, stat_lasttime
);
1869 set_file_times(f
, act
.mtime
, act
.atime
);
1874 run_err("%s: Write error", destfname
);
1877 (void) scp_finish_filerecv();
1884 * We will copy local files to a remote server.
1886 static void toremote(int argc
, char *argv
[])
1888 char *src
, *targ
, *host
, *user
;
1892 targ
= argv
[argc
- 1];
1894 /* Separate host from filename */
1898 bump("targ == NULL in toremote()");
1902 /* Substitute "." for emtpy target */
1904 /* Separate host and username */
1906 host
= strrchr(host
, '@');
1917 if (colon(argv
[0]) != NULL
)
1918 bump("%s: Remote to remote not supported", argv
[0]);
1920 wc_type
= test_wildcard(argv
[0], 1);
1921 if (wc_type
== WCTYPE_NONEXISTENT
)
1922 bump("%s: No such file or directory\n", argv
[0]);
1923 else if (wc_type
== WCTYPE_WILDCARD
)
1924 targetshouldbedirectory
= 1;
1927 cmd
= dupprintf("scp%s%s%s%s -t %s",
1928 verbose ?
" -v" : "",
1929 recursive ?
" -r" : "",
1930 preserve ?
" -p" : "",
1931 targetshouldbedirectory ?
" -d" : "", targ
);
1932 do_cmd(host
, user
, cmd
);
1935 scp_source_setup(targ
, targetshouldbedirectory
);
1937 for (i
= 0; i
< argc
- 1; i
++) {
1939 if (colon(src
) != NULL
) {
1940 tell_user(stderr
, "%s: Remote to remote not supported\n", src
);
1945 wc_type
= test_wildcard(src
, 1);
1946 if (wc_type
== WCTYPE_NONEXISTENT
) {
1947 run_err("%s: No such file or directory", src
);
1949 } else if (wc_type
== WCTYPE_FILENAME
) {
1953 WildcardMatcher
*wc
;
1956 wc
= begin_wildcard_matching(src
);
1958 run_err("%s: No such file or directory", src
);
1962 while ((filename
= wildcard_get_filename(wc
)) != NULL
) {
1967 finish_wildcard_matching(wc
);
1973 * We will copy files from a remote server to the local machine.
1975 static void tolocal(int argc
, char *argv
[])
1977 char *src
, *targ
, *host
, *user
;
1981 bump("More than one remote source not supported");
1986 /* Separate host from filename */
1990 bump("Local to local copy not supported");
1994 /* Substitute "." for empty filename */
1996 /* Separate username and hostname */
1998 host
= strrchr(host
, '@');
2008 cmd
= dupprintf("scp%s%s%s%s -f %s",
2009 verbose ?
" -v" : "",
2010 recursive ?
" -r" : "",
2011 preserve ?
" -p" : "",
2012 targetshouldbedirectory ?
" -d" : "", src
);
2013 do_cmd(host
, user
, cmd
);
2016 if (scp_sink_setup(src
, preserve
, recursive
))
2023 * We will issue a list command to get a remote directory.
2025 static void get_dir_list(int argc
, char *argv
[])
2027 char *src
, *host
, *user
;
2033 /* Separate host from filename */
2037 bump("Local to local copy not supported");
2041 /* Substitute "." for empty filename */
2043 /* Separate username and hostname */
2045 host
= strrchr(host
, '@');
2055 cmd
= snewn(4 * strlen(src
) + 100, char);
2056 strcpy(cmd
, "ls -la '");
2057 p
= cmd
+ strlen(cmd
);
2058 for (q
= src
; *q
; q
++) {
2071 do_cmd(host
, user
, cmd
);
2075 scp_sftp_listdir(src
);
2077 while (ssh_scp_recv((unsigned char *) &c
, 1) > 0)
2078 tell_char(stdout
, c
);
2083 * Short description of parameters.
2085 static void usage(void)
2087 printf("PuTTY Secure Copy client\n");
2088 printf("%s\n", ver
);
2089 printf("Usage: pscp [options] [user@]host:source target\n");
2091 (" pscp [options] source [source...] [user@]host:target\n");
2092 printf(" pscp [options] -ls [user@]host:filespec\n");
2093 printf("Options:\n");
2094 printf(" -p preserve file attributes\n");
2095 printf(" -q quiet, don't show statistics\n");
2096 printf(" -r copy directories recursively\n");
2097 printf(" -v show verbose messages\n");
2098 printf(" -load sessname Load settings from saved session\n");
2099 printf(" -P port connect to specified port\n");
2100 printf(" -l user connect with specified username\n");
2101 printf(" -pw passw login with specified password\n");
2102 printf(" -1 -2 force use of particular SSH protocol version\n");
2103 printf(" -C enable compression\n");
2104 printf(" -i key private key file for authentication\n");
2105 printf(" -batch disable all interactive prompts\n");
2106 printf(" -unsafe allow server-side wildcards (DANGEROUS)\n");
2107 printf(" -V print version information\n");
2108 printf(" -sftp force use of SFTP protocol\n");
2109 printf(" -scp force use of SCP protocol\n");
2112 * -gui is an internal option, used by GUI front ends to get
2113 * pscp to pass progress reports back to them. It's not an
2114 * ordinary user-accessible option, so it shouldn't be part of
2115 * the command-line help. The only people who need to know
2116 * about it are programmers, and they can read the source.
2119 (" -gui hWnd GUI mode with the windows handle for receiving messages\n");
2126 printf("pscp: %s\n", ver
);
2130 void cmdline_error(char *p
, ...)
2133 fprintf(stderr
, "pscp: ");
2135 vfprintf(stderr
, p
, ap
);
2137 fprintf(stderr
, "\n try typing just \"pscp\" for help\n");
2142 * Main program. (Called `psftp_main' because it gets called from
2143 * *sftp.c; bit silly, I know, but it had to be called _something_.)
2145 int psftp_main(int argc
, char *argv
[])
2149 default_protocol
= PROT_TELNET
;
2152 #ifdef FLAG_SYNCAGENT
2156 cmdline_tooltype
= TOOLTYPE_FILETRANSFER
;
2157 ssh_get_line
= &console_get_line
;
2160 for (i
= 1; i
< argc
; i
++) {
2162 if (argv
[i
][0] != '-')
2164 ret
= cmdline_process_param(argv
[i
], i
+1<argc?argv
[i
+1]:NULL
, 1, &cfg
);
2166 cmdline_error("option \"%s\" requires an argument", argv
[i
]);
2167 } else if (ret
== 2) {
2168 i
++; /* skip next argument */
2169 } else if (ret
== 1) {
2170 /* We have our own verbosity in addition to `flags'. */
2171 if (flags
& FLAG_VERBOSE
)
2173 } else if (strcmp(argv
[i
], "-r") == 0) {
2175 } else if (strcmp(argv
[i
], "-p") == 0) {
2177 } else if (strcmp(argv
[i
], "-q") == 0) {
2179 } else if (strcmp(argv
[i
], "-h") == 0 || strcmp(argv
[i
], "-?") == 0) {
2181 } else if (strcmp(argv
[i
], "-V") == 0) {
2183 } else if (strcmp(argv
[i
], "-gui") == 0 && i
+ 1 < argc
) {
2184 gui_enable(argv
[++i
]);
2186 console_batch_mode
= TRUE
;
2187 } else if (strcmp(argv
[i
], "-ls") == 0) {
2189 } else if (strcmp(argv
[i
], "-batch") == 0) {
2190 console_batch_mode
= 1;
2191 } else if (strcmp(argv
[i
], "-unsafe") == 0) {
2192 scp_unsafe_mode
= 1;
2193 } else if (strcmp(argv
[i
], "-sftp") == 0) {
2194 try_scp
= 0; try_sftp
= 1;
2195 } else if (strcmp(argv
[i
], "-scp") == 0) {
2196 try_scp
= 1; try_sftp
= 0;
2197 } else if (strcmp(argv
[i
], "--") == 0) {
2201 cmdline_error("unknown option \"%s\"", argv
[i
]);
2211 get_dir_list(argc
, argv
);
2218 targetshouldbedirectory
= 1;
2220 if (colon(argv
[argc
- 1]) != NULL
)
2221 toremote(argc
, argv
);
2223 tolocal(argc
, argv
);
2226 if (back
!= NULL
&& back
->socket(backhandle
) != NULL
) {
2228 back
->special(backhandle
, TS_EOF
);
2229 ssh_scp_recv((unsigned char *) &ch
, 1);
2234 gui_send_errcount(list
, errs
);
2237 console_provide_logctx(NULL
);
2238 back
->free(backhandle
);
2242 return (errs
== 0 ?
0 : 1);