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 using_sftp
= 0;
42 static void *backhandle
;
45 static void source(char *src
);
46 static void rsource(char *src
);
47 static void sink(char *targ
, char *src
);
50 * The maximum amount of queued data we accept before we stop and
51 * wait for the server to process some.
53 #define MAX_SCP_BUFSIZE 16384
55 void ldisc_send(void *handle
, char *buf
, int len
, int interactive
)
58 * This is only here because of the calls to ldisc_send(NULL,
59 * 0) in ssh.c. Nothing in PSCP actually needs to use the ldisc
60 * as an ldisc. So if we get called with any real data, I want
66 static void tell_char(FILE * stream
, char c
)
71 gui_send_char(stream
== stderr
, c
);
74 static void tell_str(FILE * stream
, char *str
)
78 for (i
= 0; i
< strlen(str
); ++i
)
79 tell_char(stream
, str
[i
]);
82 static void tell_user(FILE * stream
, char *fmt
, ...)
87 str
= dupvprintf(fmt
, ap
);
89 str2
= dupcat(str
, "\n", NULL
);
91 tell_str(stream
, str2
);
96 * Print an error message and perform a fatal exit.
98 void fatalbox(char *fmt
, ...)
103 str
= dupvprintf(fmt
, ap
);
104 str2
= dupcat("Fatal: ", str
, "\n", NULL
);
107 tell_str(stderr
, str2
);
112 gui_send_errcount(list
, errs
);
116 void modalfatalbox(char *fmt
, ...)
121 str
= dupvprintf(fmt
, ap
);
122 str2
= dupcat("Fatal: ", str
, "\n", NULL
);
125 tell_str(stderr
, str2
);
130 gui_send_errcount(list
, errs
);
134 void connection_fatal(void *frontend
, char *fmt
, ...)
139 str
= dupvprintf(fmt
, ap
);
140 str2
= dupcat("Fatal: ", str
, "\n", NULL
);
143 tell_str(stderr
, str2
);
148 gui_send_errcount(list
, errs
);
154 * In pscp, all agent requests should be synchronous, so this is a
157 void agent_schedule_callback(void (*callback
)(void *, void *, int),
158 void *callback_ctx
, void *data
, int len
)
160 assert(!"We shouldn't be here");
164 * Receive a block of data from the SSH link. Block until all data
167 * To do this, we repeatedly call the SSH protocol module, with our
168 * own trap in from_backend() to catch the data that comes back. We
169 * do this until we have enough data.
172 static unsigned char *outptr
; /* where to put the data */
173 static unsigned outlen
; /* how much data required */
174 static unsigned char *pending
= NULL
; /* any spare data */
175 static unsigned pendlen
= 0, pendsize
= 0; /* length and phys. size of buffer */
176 int from_backend(void *frontend
, int is_stderr
, const char *data
, int datalen
)
178 unsigned char *p
= (unsigned char *) data
;
179 unsigned len
= (unsigned) datalen
;
184 * stderr data is just spouted to local stderr and otherwise
188 fwrite(data
, 1, len
, stderr
);
193 * If this is before the real session begins, just return.
199 unsigned used
= outlen
;
202 memcpy(outptr
, p
, used
);
210 if (pendsize
< pendlen
+ len
) {
211 pendsize
= pendlen
+ len
+ 4096;
212 pending
= sresize(pending
, pendsize
, unsigned char);
214 fatalbox("Out of memory");
216 memcpy(pending
+ pendlen
, p
, len
);
222 static int ssh_scp_recv(unsigned char *buf
, int len
)
228 * See if the pending-input block contains some of what we
232 unsigned pendused
= pendlen
;
233 if (pendused
> outlen
)
235 memcpy(outptr
, pending
, pendused
);
236 memmove(pending
, pending
+ pendused
, pendlen
- pendused
);
250 if (ssh_sftp_loop_iteration() < 0)
258 * Loop through the ssh connection and authentication process.
260 static void ssh_scp_init(void)
262 while (!back
->sendok(backhandle
)) {
263 if (ssh_sftp_loop_iteration() < 0)
266 using_sftp
= !ssh_fallback_cmd(backhandle
);
269 tell_user(stderr
, "Using SFTP");
271 tell_user(stderr
, "Using SCP1");
276 * Print an error message and exit after closing the SSH link.
278 static void bump(char *fmt
, ...)
283 str
= dupvprintf(fmt
, ap
);
285 str2
= dupcat(str
, "\n", NULL
);
287 tell_str(stderr
, str2
);
291 if (back
!= NULL
&& back
->socket(backhandle
) != NULL
) {
293 back
->special(backhandle
, TS_EOF
);
294 ssh_scp_recv(&ch
, 1);
298 gui_send_errcount(list
, errs
);
304 * Open an SSH connection to user@host and execute cmd.
306 static void do_cmd(char *host
, char *user
, char *cmd
)
312 if (host
== NULL
|| host
[0] == '\0')
313 bump("Empty host name");
315 /* Try to load settings for this host */
316 do_defaults(host
, &cfg
);
317 if (cfg
.host
[0] == '\0') {
318 /* No settings for this host; use defaults */
319 do_defaults(NULL
, &cfg
);
320 strncpy(cfg
.host
, host
, sizeof(cfg
.host
) - 1);
321 cfg
.host
[sizeof(cfg
.host
) - 1] = '\0';
325 * Force use of SSH. (If they got the protocol wrong we assume the
326 * port is useless too.)
328 if (cfg
.protocol
!= PROT_SSH
) {
329 cfg
.protocol
= PROT_SSH
;
334 * Enact command-line overrides.
336 cmdline_run_saved(&cfg
);
339 * Trim leading whitespace off the hostname if it's there.
342 int space
= strspn(cfg
.host
, " \t");
343 memmove(cfg
.host
, cfg
.host
+space
, 1+strlen(cfg
.host
)-space
);
346 /* See if host is of the form user@host */
347 if (cfg
.host
[0] != '\0') {
348 char *atsign
= strchr(cfg
.host
, '@');
349 /* Make sure we're not overflowing the user field */
351 if (atsign
- cfg
.host
< sizeof cfg
.username
) {
352 strncpy(cfg
.username
, cfg
.host
, atsign
- cfg
.host
);
353 cfg
.username
[atsign
- cfg
.host
] = '\0';
355 memmove(cfg
.host
, atsign
+ 1, 1 + strlen(atsign
+ 1));
360 * Trim a colon suffix off the hostname if it's there.
362 cfg
.host
[strcspn(cfg
.host
, ":")] = '\0';
365 * Remove any remaining whitespace from the hostname.
369 while (cfg
.host
[p2
] != '\0') {
370 if (cfg
.host
[p2
] != ' ' && cfg
.host
[p2
] != '\t') {
371 cfg
.host
[p1
] = cfg
.host
[p2
];
380 if (user
!= NULL
&& user
[0] != '\0') {
381 strncpy(cfg
.username
, user
, sizeof(cfg
.username
) - 1);
382 cfg
.username
[sizeof(cfg
.username
) - 1] = '\0';
383 } else if (cfg
.username
[0] == '\0') {
384 user
= get_username();
386 bump("Empty user name");
389 tell_user(stderr
, "Guessing user name: %s", user
);
390 strncpy(cfg
.username
, user
, sizeof(cfg
.username
) - 1);
391 cfg
.username
[sizeof(cfg
.username
) - 1] = '\0';
397 * Disable scary things which shouldn't be enabled for simple
398 * things like SCP and SFTP: agent forwarding, port forwarding,
403 cfg
.portfwd
[0] = cfg
.portfwd
[1] = '\0';
406 * Attempt to start the SFTP subsystem as a first choice,
407 * falling back to the provided scp command if that fails.
409 strcpy(cfg
.remote_cmd
, "sftp");
410 cfg
.ssh_subsys
= TRUE
;
411 cfg
.remote_cmd_ptr2
= cmd
;
412 cfg
.ssh_subsys2
= FALSE
;
417 err
= back
->init(NULL
, &backhandle
, &cfg
, cfg
.host
, cfg
.port
, &realhost
,0);
419 bump("ssh_init: %s", err
);
420 logctx
= log_init(NULL
, &cfg
);
421 back
->provide_logctx(backhandle
, logctx
);
422 console_provide_logctx(logctx
);
424 if (verbose
&& realhost
!= NULL
)
425 tell_user(stderr
, "Connected to %s\n", realhost
);
430 * Update statistic information about current file.
432 static void print_stats(char *name
, unsigned long size
, unsigned long done
,
433 time_t start
, time_t now
)
442 elap
= (unsigned long) difftime(now
, start
);
445 ratebs
= (float) done
/ elap
;
447 ratebs
= (float) done
;
452 eta
= (unsigned long) ((size
- done
) / ratebs
);
453 sprintf(etastr
, "%02ld:%02ld:%02ld",
454 eta
/ 3600, (eta
% 3600) / 60, eta
% 60);
456 pct
= (int) (100 * (done
* 1.0 / size
));
459 gui_update_stats(name
, size
, pct
, elap
, done
, eta
,
460 (unsigned long) ratebs
);
462 len
= printf("\r%-25.25s | %10ld kB | %5.1f kB/s | ETA: %8s | %3d%%",
463 name
, done
/ 1024, ratebs
/ 1024.0, etastr
, pct
);
464 if (len
< prev_stats_len
)
465 printf("%*s", prev_stats_len
- len
, "");
466 prev_stats_len
= len
;
474 * Find a colon in str and return a pointer to the colon.
475 * This is used to separate hostname from filename.
477 static char *colon(char *str
)
479 /* We ignore a leading colon, since the hostname cannot be
480 empty. We also ignore a colon as second character because
481 of filenames like f:myfile.txt. */
482 if (str
[0] == '\0' || str
[0] == ':' || str
[1] == ':')
484 while (*str
!= '\0' && *str
!= ':' && *str
!= '/' && *str
!= '\\')
493 * Return a pointer to the portion of str that comes after the last
494 * slash (or backslash or colon, if `local' is TRUE).
496 static char *stripslashes(char *str
, int local
)
501 p
= strchr(str
, ':');
505 p
= strrchr(str
, '/');
509 p
= strrchr(str
, '\\');
517 * Determine whether a string is entirely composed of dots.
519 static int is_dots(char *str
)
521 return str
[strspn(str
, ".")] == '\0';
525 * Wait for a response from the other side.
526 * Return 0 if ok, -1 if error.
528 static int response(void)
530 char ch
, resp
, rbuf
[2048];
533 if (ssh_scp_recv(&resp
, 1) <= 0)
534 bump("Lost connection");
544 case 2: /* fatal error */
546 if (ssh_scp_recv(&ch
, 1) <= 0)
547 bump("Protocol error: Lost connection");
549 } while (p
< sizeof(rbuf
) && ch
!= '\n');
552 tell_user(stderr
, "%s\n", rbuf
);
560 int sftp_recvdata(char *buf
, int len
)
562 return ssh_scp_recv(buf
, len
);
564 int sftp_senddata(char *buf
, int len
)
566 back
->send(backhandle
, (unsigned char *) buf
, len
);
570 /* ----------------------------------------------------------------------
571 * sftp-based replacement for the hacky `pscp -ls'.
573 static int sftp_ls_compare(const void *av
, const void *bv
)
575 const struct fxp_name
*a
= (const struct fxp_name
*) av
;
576 const struct fxp_name
*b
= (const struct fxp_name
*) bv
;
577 return strcmp(a
->filename
, b
->filename
);
579 void scp_sftp_listdir(char *dirname
)
581 struct fxp_handle
*dirh
;
582 struct fxp_names
*names
;
583 struct fxp_name
*ournames
;
584 struct sftp_packet
*pktin
;
585 struct sftp_request
*req
, *rreq
;
586 int nnames
, namesize
;
590 tell_user(stderr
, "unable to initialise SFTP: %s", fxp_error());
595 printf("Listing directory %s\n", dirname
);
597 sftp_register(req
= fxp_opendir_send(dirname
));
598 rreq
= sftp_find_request(pktin
= sftp_recv());
600 dirh
= fxp_opendir_recv(pktin
, rreq
);
603 printf("Unable to open %s: %s\n", dirname
, fxp_error());
605 nnames
= namesize
= 0;
610 sftp_register(req
= fxp_readdir_send(dirh
));
611 rreq
= sftp_find_request(pktin
= sftp_recv());
613 names
= fxp_readdir_recv(pktin
, rreq
);
616 if (fxp_error_type() == SSH_FX_EOF
)
618 printf("Reading directory %s: %s\n", dirname
, fxp_error());
621 if (names
->nnames
== 0) {
622 fxp_free_names(names
);
626 if (nnames
+ names
->nnames
>= namesize
) {
627 namesize
+= names
->nnames
+ 128;
628 ournames
= sresize(ournames
, namesize
, struct fxp_name
);
631 for (i
= 0; i
< names
->nnames
; i
++)
632 ournames
[nnames
++] = names
->names
[i
];
634 names
->nnames
= 0; /* prevent free_names */
635 fxp_free_names(names
);
637 sftp_register(req
= fxp_close_send(dirh
));
638 rreq
= sftp_find_request(pktin
= sftp_recv());
640 fxp_close_recv(pktin
, rreq
);
643 * Now we have our filenames. Sort them by actual file
644 * name, and then output the longname parts.
646 qsort(ournames
, nnames
, sizeof(*ournames
), sftp_ls_compare
);
651 for (i
= 0; i
< nnames
; i
++)
652 printf("%s\n", ournames
[i
].longname
);
656 /* ----------------------------------------------------------------------
657 * Helper routines that contain the actual SCP protocol elements,
658 * implemented both as SCP1 and SFTP.
661 static struct scp_sftp_dirstack
{
662 struct scp_sftp_dirstack
*next
;
663 struct fxp_name
*names
;
664 int namepos
, namelen
;
667 int matched_something
; /* wildcard match set was non-empty */
668 } *scp_sftp_dirstack_head
;
669 static char *scp_sftp_remotepath
, *scp_sftp_currentname
;
670 static char *scp_sftp_wildcard
;
671 static int scp_sftp_targetisdir
, scp_sftp_donethistarget
;
672 static int scp_sftp_preserve
, scp_sftp_recursive
;
673 static unsigned long scp_sftp_mtime
, scp_sftp_atime
;
674 static int scp_has_times
;
675 static struct fxp_handle
*scp_sftp_filehandle
;
676 static struct fxp_xfer
*scp_sftp_xfer
;
677 static uint64 scp_sftp_fileoffset
;
679 void scp_source_setup(char *target
, int shouldbedir
)
683 * Find out whether the target filespec is in fact a
686 struct sftp_packet
*pktin
;
687 struct sftp_request
*req
, *rreq
;
688 struct fxp_attrs attrs
;
692 tell_user(stderr
, "unable to initialise SFTP: %s", fxp_error());
697 sftp_register(req
= fxp_stat_send(target
));
698 rreq
= sftp_find_request(pktin
= sftp_recv());
700 ret
= fxp_stat_recv(pktin
, rreq
, &attrs
);
702 if (!ret
|| !(attrs
.flags
& SSH_FILEXFER_ATTR_PERMISSIONS
))
703 scp_sftp_targetisdir
= 0;
705 scp_sftp_targetisdir
= (attrs
.permissions
& 0040000) != 0;
707 if (shouldbedir
&& !scp_sftp_targetisdir
) {
708 bump("pscp: remote filespec %s: not a directory\n", target
);
711 scp_sftp_remotepath
= dupstr(target
);
719 int scp_send_errmsg(char *str
)
722 /* do nothing; we never need to send our errors to the server */
724 back
->send(backhandle
, "\001", 1);/* scp protocol error prefix */
725 back
->send(backhandle
, str
, strlen(str
));
727 return 0; /* can't fail */
730 int scp_send_filetimes(unsigned long mtime
, unsigned long atime
)
733 scp_sftp_mtime
= mtime
;
734 scp_sftp_atime
= atime
;
739 sprintf(buf
, "T%lu 0 %lu 0\n", mtime
, atime
);
740 back
->send(backhandle
, buf
, strlen(buf
));
745 int scp_send_filename(char *name
, unsigned long size
, int modes
)
749 struct sftp_packet
*pktin
;
750 struct sftp_request
*req
, *rreq
;
752 if (scp_sftp_targetisdir
) {
753 fullname
= dupcat(scp_sftp_remotepath
, "/", name
, NULL
);
755 fullname
= dupstr(scp_sftp_remotepath
);
758 sftp_register(req
= fxp_open_send(fullname
, SSH_FXF_WRITE
|
759 SSH_FXF_CREAT
| SSH_FXF_TRUNC
));
760 rreq
= sftp_find_request(pktin
= sftp_recv());
762 scp_sftp_filehandle
= fxp_open_recv(pktin
, rreq
);
764 if (!scp_sftp_filehandle
) {
765 tell_user(stderr
, "pscp: unable to open %s: %s",
766 fullname
, fxp_error());
770 scp_sftp_fileoffset
= uint64_make(0, 0);
771 scp_sftp_xfer
= xfer_upload_init(scp_sftp_filehandle
,
772 scp_sftp_fileoffset
);
777 sprintf(buf
, "C%04o %lu ", modes
, size
);
778 back
->send(backhandle
, buf
, strlen(buf
));
779 back
->send(backhandle
, name
, strlen(name
));
780 back
->send(backhandle
, "\n", 1);
785 int scp_send_filedata(char *data
, int len
)
789 struct sftp_packet
*pktin
;
791 if (!scp_sftp_filehandle
) {
795 while (!xfer_upload_ready(scp_sftp_xfer
)) {
797 ret
= xfer_upload_gotpkt(scp_sftp_xfer
, pktin
);
799 tell_user(stderr
, "error while writing: %s\n", fxp_error());
805 xfer_upload_data(scp_sftp_xfer
, data
, len
);
807 scp_sftp_fileoffset
= uint64_add32(scp_sftp_fileoffset
, len
);
810 int bufsize
= back
->send(backhandle
, data
, len
);
813 * If the network transfer is backing up - that is, the
814 * remote site is not accepting data as fast as we can
815 * produce it - then we must loop on network events until
816 * we have space in the buffer again.
818 while (bufsize
> MAX_SCP_BUFSIZE
) {
819 if (ssh_sftp_loop_iteration() < 0)
821 bufsize
= back
->sendbuffer(backhandle
);
828 int scp_send_finish(void)
831 struct fxp_attrs attrs
;
832 struct sftp_packet
*pktin
;
833 struct sftp_request
*req
, *rreq
;
836 while (!xfer_done(scp_sftp_xfer
)) {
838 xfer_upload_gotpkt(scp_sftp_xfer
, pktin
);
840 xfer_cleanup(scp_sftp_xfer
);
842 if (!scp_sftp_filehandle
) {
846 attrs
.flags
= SSH_FILEXFER_ATTR_ACMODTIME
;
847 attrs
.atime
= scp_sftp_atime
;
848 attrs
.mtime
= scp_sftp_mtime
;
849 sftp_register(req
= fxp_fsetstat_send(scp_sftp_filehandle
, attrs
));
850 rreq
= sftp_find_request(pktin
= sftp_recv());
852 ret
= fxp_fsetstat_recv(pktin
, rreq
);
854 tell_user(stderr
, "unable to set file times: %s\n", fxp_error());
858 sftp_register(req
= fxp_close_send(scp_sftp_filehandle
));
859 rreq
= sftp_find_request(pktin
= sftp_recv());
861 fxp_close_recv(pktin
, rreq
);
865 back
->send(backhandle
, "", 1);
870 char *scp_save_remotepath(void)
873 return scp_sftp_remotepath
;
878 void scp_restore_remotepath(char *data
)
881 scp_sftp_remotepath
= data
;
884 int scp_send_dirname(char *name
, int modes
)
889 struct fxp_attrs attrs
;
890 struct sftp_packet
*pktin
;
891 struct sftp_request
*req
, *rreq
;
894 if (scp_sftp_targetisdir
) {
895 fullname
= dupcat(scp_sftp_remotepath
, "/", name
, NULL
);
897 fullname
= dupstr(scp_sftp_remotepath
);
901 * We don't worry about whether we managed to create the
902 * directory, because if it exists already it's OK just to
903 * use it. Instead, we will stat it afterwards, and if it
904 * exists and is a directory we will assume we were either
905 * successful or it didn't matter.
907 sftp_register(req
= fxp_mkdir_send(fullname
));
908 rreq
= sftp_find_request(pktin
= sftp_recv());
910 ret
= fxp_mkdir_recv(pktin
, rreq
);
915 err
= "server reported no error";
917 sftp_register(req
= fxp_stat_send(fullname
));
918 rreq
= sftp_find_request(pktin
= sftp_recv());
920 ret
= fxp_stat_recv(pktin
, rreq
, &attrs
);
922 if (!ret
|| !(attrs
.flags
& SSH_FILEXFER_ATTR_PERMISSIONS
) ||
923 !(attrs
.permissions
& 0040000)) {
924 tell_user(stderr
, "unable to create directory %s: %s",
930 scp_sftp_remotepath
= fullname
;
935 sprintf(buf
, "D%04o 0 ", modes
);
936 back
->send(backhandle
, buf
, strlen(buf
));
937 back
->send(backhandle
, name
, strlen(name
));
938 back
->send(backhandle
, "\n", 1);
943 int scp_send_enddir(void)
946 sfree(scp_sftp_remotepath
);
949 back
->send(backhandle
, "E\n", 2);
955 * Yes, I know; I have an scp_sink_setup _and_ an scp_sink_init.
956 * That's bad. The difference is that scp_sink_setup is called once
957 * right at the start, whereas scp_sink_init is called to
958 * initialise every level of recursion in the protocol.
960 int scp_sink_setup(char *source
, int preserve
, int recursive
)
966 tell_user(stderr
, "unable to initialise SFTP: %s", fxp_error());
971 * It's possible that the source string we've been given
972 * contains a wildcard. If so, we must split the directory
973 * away from the wildcard itself (throwing an error if any
974 * wildcardness comes before the final slash) and arrange
975 * things so that a dirstack entry will be set up.
977 newsource
= snewn(1+strlen(source
), char);
978 if (!wc_unescape(newsource
, source
)) {
979 /* Yes, here we go; it's a wildcard. Bah. */
980 char *dupsource
, *lastpart
, *dirpart
, *wildcard
;
981 dupsource
= dupstr(source
);
982 lastpart
= stripslashes(dupsource
, 0);
983 wildcard
= dupstr(lastpart
);
985 if (*dupsource
&& dupsource
[1]) {
987 * The remains of dupsource are at least two
988 * characters long, meaning the pathname wasn't
989 * empty or just `/'. Hence, we remove the trailing
993 } else if (!*dupsource
) {
995 * The remains of dupsource are _empty_ - the whole
996 * pathname was a wildcard. Hence we need to
997 * replace it with ".".
1000 dupsource
= dupstr(".");
1004 * Now we have separated our string into dupsource (the
1005 * directory part) and wildcard. Both of these will
1006 * need freeing at some point. Next step is to remove
1007 * wildcard escapes from the directory part, throwing
1008 * an error if it contains a real wildcard.
1010 dirpart
= snewn(1+strlen(dupsource
), char);
1011 if (!wc_unescape(dirpart
, dupsource
)) {
1012 tell_user(stderr
, "%s: multiple-level wildcards unsupported",
1022 * Now we have dirpart (unescaped, ie a valid remote
1023 * path), and wildcard (a wildcard). This will be
1024 * sufficient to arrange a dirstack entry.
1026 scp_sftp_remotepath
= dirpart
;
1027 scp_sftp_wildcard
= wildcard
;
1030 scp_sftp_remotepath
= newsource
;
1031 scp_sftp_wildcard
= NULL
;
1033 scp_sftp_preserve
= preserve
;
1034 scp_sftp_recursive
= recursive
;
1035 scp_sftp_donethistarget
= 0;
1036 scp_sftp_dirstack_head
= NULL
;
1041 int scp_sink_init(void)
1044 back
->send(backhandle
, "", 1);
1049 #define SCP_SINK_FILE 1
1050 #define SCP_SINK_DIR 2
1051 #define SCP_SINK_ENDDIR 3
1052 #define SCP_SINK_RETRY 4 /* not an action; just try again */
1053 struct scp_sink_action
{
1054 int action
; /* FILE, DIR, ENDDIR */
1055 char *buf
; /* will need freeing after use */
1056 char *name
; /* filename or dirname (not ENDDIR) */
1057 int mode
; /* access mode (not ENDDIR) */
1058 unsigned long size
; /* file size (not ENDDIR) */
1059 int settime
; /* 1 if atime and mtime are filled */
1060 unsigned long atime
, mtime
; /* access times for the file */
1063 int scp_get_sink_action(struct scp_sink_action
*act
)
1067 int must_free_fname
;
1068 struct fxp_attrs attrs
;
1069 struct sftp_packet
*pktin
;
1070 struct sftp_request
*req
, *rreq
;
1073 if (!scp_sftp_dirstack_head
) {
1074 if (!scp_sftp_donethistarget
) {
1076 * Simple case: we are only dealing with one file.
1078 fname
= scp_sftp_remotepath
;
1079 must_free_fname
= 0;
1080 scp_sftp_donethistarget
= 1;
1083 * Even simpler case: one file _which we've done_.
1084 * Return 1 (finished).
1090 * We're now in the middle of stepping through a list
1091 * of names returned from fxp_readdir(); so let's carry
1094 struct scp_sftp_dirstack
*head
= scp_sftp_dirstack_head
;
1095 while (head
->namepos
< head
->namelen
&&
1096 (is_dots(head
->names
[head
->namepos
].filename
) ||
1098 !wc_match(head
->wildcard
,
1099 head
->names
[head
->namepos
].filename
))))
1100 head
->namepos
++; /* skip . and .. */
1101 if (head
->namepos
< head
->namelen
) {
1102 head
->matched_something
= 1;
1103 fname
= dupcat(head
->dirpath
, "/",
1104 head
->names
[head
->namepos
++].filename
,
1106 must_free_fname
= 1;
1109 * We've come to the end of the list; pop it off
1110 * the stack and return an ENDDIR action (or RETRY
1111 * if this was a wildcard match).
1113 if (head
->wildcard
) {
1114 act
->action
= SCP_SINK_RETRY
;
1115 if (!head
->matched_something
) {
1116 tell_user(stderr
, "pscp: wildcard '%s' matched "
1117 "no files", head
->wildcard
);
1120 sfree(head
->wildcard
);
1123 act
->action
= SCP_SINK_ENDDIR
;
1126 sfree(head
->dirpath
);
1128 scp_sftp_dirstack_head
= head
->next
;
1136 * Now we have a filename. Stat it, and see if it's a file
1139 sftp_register(req
= fxp_stat_send(fname
));
1140 rreq
= sftp_find_request(pktin
= sftp_recv());
1141 assert(rreq
== req
);
1142 ret
= fxp_stat_recv(pktin
, rreq
, &attrs
);
1144 if (!ret
|| !(attrs
.flags
& SSH_FILEXFER_ATTR_PERMISSIONS
)) {
1145 tell_user(stderr
, "unable to identify %s: %s", fname
,
1146 ret ?
"file type not supplied" : fxp_error());
1151 if (attrs
.permissions
& 0040000) {
1152 struct scp_sftp_dirstack
*newitem
;
1153 struct fxp_handle
*dirhandle
;
1154 int nnames
, namesize
;
1155 struct fxp_name
*ournames
;
1156 struct fxp_names
*names
;
1159 * It's a directory. If we're not in recursive mode,
1160 * this merits a complaint (which is fatal if the name
1161 * was specified directly, but not if it was matched by
1164 * We skip this complaint completely if
1165 * scp_sftp_wildcard is set, because that's an
1166 * indication that we're not actually supposed to
1167 * _recursively_ transfer the dir, just scan it for
1168 * things matching the wildcard.
1170 if (!scp_sftp_recursive
&& !scp_sftp_wildcard
) {
1171 tell_user(stderr
, "pscp: %s: is a directory", fname
);
1173 if (must_free_fname
) sfree(fname
);
1174 if (scp_sftp_dirstack_head
) {
1175 act
->action
= SCP_SINK_RETRY
;
1183 * Otherwise, the fun begins. We must fxp_opendir() the
1184 * directory, slurp the filenames into memory, return
1185 * SCP_SINK_DIR (unless this is a wildcard match), and
1186 * set targetisdir. The next time we're called, we will
1187 * run through the list of filenames one by one,
1188 * matching them against a wildcard if present.
1190 * If targetisdir is _already_ set (meaning we're
1191 * already in the middle of going through another such
1192 * list), we must push the other (target,namelist) pair
1195 sftp_register(req
= fxp_opendir_send(fname
));
1196 rreq
= sftp_find_request(pktin
= sftp_recv());
1197 assert(rreq
== req
);
1198 dirhandle
= fxp_opendir_recv(pktin
, rreq
);
1201 tell_user(stderr
, "scp: unable to open directory %s: %s",
1202 fname
, fxp_error());
1203 if (must_free_fname
) sfree(fname
);
1207 nnames
= namesize
= 0;
1212 sftp_register(req
= fxp_readdir_send(dirhandle
));
1213 rreq
= sftp_find_request(pktin
= sftp_recv());
1214 assert(rreq
== req
);
1215 names
= fxp_readdir_recv(pktin
, rreq
);
1217 if (names
== NULL
) {
1218 if (fxp_error_type() == SSH_FX_EOF
)
1220 tell_user(stderr
, "scp: reading directory %s: %s\n",
1221 fname
, fxp_error());
1222 if (must_free_fname
) sfree(fname
);
1227 if (names
->nnames
== 0) {
1228 fxp_free_names(names
);
1231 if (nnames
+ names
->nnames
>= namesize
) {
1232 namesize
+= names
->nnames
+ 128;
1233 ournames
= sresize(ournames
, namesize
, struct fxp_name
);
1235 for (i
= 0; i
< names
->nnames
; i
++)
1236 ournames
[nnames
++] = names
->names
[i
];
1237 names
->nnames
= 0; /* prevent free_names */
1238 fxp_free_names(names
);
1240 sftp_register(req
= fxp_close_send(dirhandle
));
1241 rreq
= sftp_find_request(pktin
= sftp_recv());
1242 assert(rreq
== req
);
1243 fxp_close_recv(pktin
, rreq
);
1245 newitem
= snew(struct scp_sftp_dirstack
);
1246 newitem
->next
= scp_sftp_dirstack_head
;
1247 newitem
->names
= ournames
;
1248 newitem
->namepos
= 0;
1249 newitem
->namelen
= nnames
;
1250 if (must_free_fname
)
1251 newitem
->dirpath
= fname
;
1253 newitem
->dirpath
= dupstr(fname
);
1254 if (scp_sftp_wildcard
) {
1255 newitem
->wildcard
= scp_sftp_wildcard
;
1256 newitem
->matched_something
= 0;
1257 scp_sftp_wildcard
= NULL
;
1259 newitem
->wildcard
= NULL
;
1261 scp_sftp_dirstack_head
= newitem
;
1263 if (newitem
->wildcard
) {
1264 act
->action
= SCP_SINK_RETRY
;
1266 act
->action
= SCP_SINK_DIR
;
1267 act
->buf
= dupstr(stripslashes(fname
, 0));
1268 act
->name
= act
->buf
;
1269 act
->size
= 0; /* duhh, it's a directory */
1270 act
->mode
= 07777 & attrs
.permissions
;
1271 if (scp_sftp_preserve
&&
1272 (attrs
.flags
& SSH_FILEXFER_ATTR_ACMODTIME
)) {
1273 act
->atime
= attrs
.atime
;
1274 act
->mtime
= attrs
.mtime
;
1283 * It's a file. Return SCP_SINK_FILE.
1285 act
->action
= SCP_SINK_FILE
;
1286 act
->buf
= dupstr(stripslashes(fname
, 0));
1287 act
->name
= act
->buf
;
1288 if (attrs
.flags
& SSH_FILEXFER_ATTR_SIZE
) {
1289 if (uint64_compare(attrs
.size
,
1290 uint64_make(0, ULONG_MAX
)) > 0) {
1291 act
->size
= ULONG_MAX
; /* *boggle* */
1293 act
->size
= attrs
.size
.lo
;
1295 act
->size
= ULONG_MAX
; /* no idea */
1296 act
->mode
= 07777 & attrs
.permissions
;
1297 if (scp_sftp_preserve
&&
1298 (attrs
.flags
& SSH_FILEXFER_ATTR_ACMODTIME
)) {
1299 act
->atime
= attrs
.atime
;
1300 act
->mtime
= attrs
.mtime
;
1304 if (must_free_fname
)
1305 scp_sftp_currentname
= fname
;
1307 scp_sftp_currentname
= dupstr(fname
);
1322 if (ssh_scp_recv(&ch
, 1) <= 0)
1325 bump("Protocol error: Unexpected newline");
1329 if (ssh_scp_recv(&ch
, 1) <= 0)
1330 bump("Lost connection");
1333 act
->buf
= sresize(act
->buf
, bufsize
, char);
1336 } while (ch
!= '\n');
1337 act
->buf
[i
- 1] = '\0';
1339 case '\01': /* error */
1340 tell_user(stderr
, "%s\n", act
->buf
);
1342 continue; /* go round again */
1343 case '\02': /* fatal error */
1344 bump("%s", act
->buf
);
1346 back
->send(backhandle
, "", 1);
1347 act
->action
= SCP_SINK_ENDDIR
;
1350 if (sscanf(act
->buf
, "%ld %*d %ld %*d",
1351 &act
->mtime
, &act
->atime
) == 2) {
1353 back
->send(backhandle
, "", 1);
1354 continue; /* go round again */
1356 bump("Protocol error: Illegal time format");
1359 act
->action
= (action
== 'C' ? SCP_SINK_FILE
: SCP_SINK_DIR
);
1362 bump("Protocol error: Expected control record");
1365 * We will go round this loop only once, unless we hit
1372 * If we get here, we must have seen SCP_SINK_FILE or
1375 if (sscanf(act
->buf
, "%o %lu %n", &act
->mode
, &act
->size
, &i
) != 2)
1376 bump("Protocol error: Illegal file descriptor format");
1377 act
->name
= act
->buf
+ i
;
1382 int scp_accept_filexfer(void)
1385 struct sftp_packet
*pktin
;
1386 struct sftp_request
*req
, *rreq
;
1388 sftp_register(req
= fxp_open_send(scp_sftp_currentname
, SSH_FXF_READ
));
1389 rreq
= sftp_find_request(pktin
= sftp_recv());
1390 assert(rreq
== req
);
1391 scp_sftp_filehandle
= fxp_open_recv(pktin
, rreq
);
1393 if (!scp_sftp_filehandle
) {
1394 tell_user(stderr
, "pscp: unable to open %s: %s",
1395 scp_sftp_currentname
, fxp_error());
1399 scp_sftp_fileoffset
= uint64_make(0, 0);
1400 scp_sftp_xfer
= xfer_download_init(scp_sftp_filehandle
,
1401 scp_sftp_fileoffset
);
1402 sfree(scp_sftp_currentname
);
1405 back
->send(backhandle
, "", 1);
1406 return 0; /* can't fail */
1410 int scp_recv_filedata(char *data
, int len
)
1413 struct sftp_packet
*pktin
;
1417 xfer_download_queue(scp_sftp_xfer
);
1418 pktin
= sftp_recv();
1419 ret
= xfer_download_gotpkt(scp_sftp_xfer
, pktin
);
1422 tell_user(stderr
, "pscp: error while reading: %s", fxp_error());
1427 if (xfer_download_data(scp_sftp_xfer
, &vbuf
, &actuallen
)) {
1429 * This assertion relies on the fact that the natural
1430 * block size used in the xfer manager is at most that
1431 * used in this module. I don't like crossing layers in
1432 * this way, but it'll do for now.
1434 assert(actuallen
<= len
);
1435 memcpy(data
, vbuf
, actuallen
);
1440 scp_sftp_fileoffset
= uint64_add32(scp_sftp_fileoffset
, actuallen
);
1444 return ssh_scp_recv(data
, len
);
1448 int scp_finish_filerecv(void)
1451 struct sftp_packet
*pktin
;
1452 struct sftp_request
*req
, *rreq
;
1455 * Ensure that xfer_done() will work correctly, so we can
1456 * clean up any outstanding requests from the file
1459 xfer_set_error(scp_sftp_xfer
);
1460 while (!xfer_done(scp_sftp_xfer
)) {
1464 pktin
= sftp_recv();
1465 xfer_download_gotpkt(scp_sftp_xfer
, pktin
);
1466 if (xfer_download_data(scp_sftp_xfer
, &vbuf
, &len
))
1469 xfer_cleanup(scp_sftp_xfer
);
1471 sftp_register(req
= fxp_close_send(scp_sftp_filehandle
));
1472 rreq
= sftp_find_request(pktin
= sftp_recv());
1473 assert(rreq
== req
);
1474 fxp_close_recv(pktin
, rreq
);
1477 back
->send(backhandle
, "", 1);
1482 /* ----------------------------------------------------------------------
1483 * Send an error message to the other side and to the screen.
1484 * Increment error counter.
1486 static void run_err(const char *fmt
, ...)
1492 str
= dupvprintf(fmt
, ap
);
1493 str2
= dupcat("scp: ", str
, "\n", NULL
);
1495 scp_send_errmsg(str2
);
1496 tell_user(stderr
, "%s", str2
);
1502 * Execute the source part of the SCP protocol.
1504 static void source(char *src
)
1507 unsigned long mtime
, atime
;
1512 unsigned long stat_bytes
;
1513 time_t stat_starttime
, stat_lasttime
;
1515 attr
= file_type(src
);
1516 if (attr
== FILE_TYPE_NONEXISTENT
||
1517 attr
== FILE_TYPE_WEIRD
) {
1518 run_err("%s: %s file or directory", src
,
1519 (attr
== FILE_TYPE_WEIRD ?
"Not a" : "No such"));
1523 if (attr
== FILE_TYPE_DIRECTORY
) {
1526 * Avoid . and .. directories.
1529 p
= strrchr(src
, '/');
1531 p
= strrchr(src
, '\\');
1536 if (!strcmp(p
, ".") || !strcmp(p
, ".."))
1537 /* skip . and .. */ ;
1541 run_err("%s: not a regular file", src
);
1546 if ((last
= strrchr(src
, '/')) == NULL
)
1550 if (strrchr(last
, '\\') != NULL
)
1551 last
= strrchr(last
, '\\') + 1;
1552 if (last
== src
&& strchr(src
, ':') != NULL
)
1553 last
= strchr(src
, ':') + 1;
1555 f
= open_existing_file(src
, &size
, &mtime
, &atime
);
1557 run_err("%s: Cannot open file", src
);
1561 if (scp_send_filetimes(mtime
, atime
))
1566 tell_user(stderr
, "Sending file %s, size=%lu", last
, size
);
1567 if (scp_send_filename(last
, size
, 0644))
1571 stat_starttime
= time(NULL
);
1574 for (i
= 0; i
< size
; i
+= 4096) {
1575 char transbuf
[4096];
1580 if ((j
= read_from_file(f
, transbuf
, k
)) != k
) {
1583 bump("%s: Read error", src
);
1585 if (scp_send_filedata(transbuf
, k
))
1586 bump("%s: Network error occurred", src
);
1590 if (time(NULL
) != stat_lasttime
|| i
+ k
== size
) {
1591 stat_lasttime
= time(NULL
);
1592 print_stats(last
, size
, stat_bytes
,
1593 stat_starttime
, stat_lasttime
);
1600 (void) scp_send_finish();
1604 * Recursively send the contents of a directory.
1606 static void rsource(char *src
)
1612 if ((last
= strrchr(src
, '/')) == NULL
)
1616 if (strrchr(last
, '\\') != NULL
)
1617 last
= strrchr(last
, '\\') + 1;
1618 if (last
== src
&& strchr(src
, ':') != NULL
)
1619 last
= strchr(src
, ':') + 1;
1621 /* maybe send filetime */
1623 save_target
= scp_save_remotepath();
1626 tell_user(stderr
, "Entering directory: %s", last
);
1627 if (scp_send_dirname(last
, 0755))
1630 dir
= open_directory(src
);
1633 while ((filename
= read_filename(dir
)) != NULL
) {
1634 char *foundfile
= dupcat(src
, "/", filename
, NULL
);
1640 close_directory(dir
);
1642 (void) scp_send_enddir();
1644 scp_restore_remotepath(save_target
);
1648 * Execute the sink part of the SCP protocol.
1650 static void sink(char *targ
, char *src
)
1657 unsigned long received
;
1659 unsigned long stat_bytes
;
1660 time_t stat_starttime
, stat_lasttime
;
1663 attr
= file_type(targ
);
1664 if (attr
== FILE_TYPE_DIRECTORY
)
1667 if (targetshouldbedirectory
&& !targisdir
)
1668 bump("%s: Not a directory", targ
);
1672 struct scp_sink_action act
;
1673 if (scp_get_sink_action(&act
))
1676 if (act
.action
== SCP_SINK_ENDDIR
)
1679 if (act
.action
== SCP_SINK_RETRY
)
1684 * Prevent the remote side from maliciously writing to
1685 * files outside the target area by sending a filename
1686 * containing `../'. In fact, it shouldn't be sending
1687 * filenames with any slashes or colons in at all; so
1688 * we'll find the last slash, backslash or colon in the
1689 * filename and use only the part after that. (And
1692 * In addition, we also ensure here that if we're
1693 * copying a single file and the target is a directory
1694 * (common usage: `pscp host:filename .') the remote
1695 * can't send us a _different_ file name. We can
1696 * distinguish this case because `src' will be non-NULL
1697 * and the last component of that will fail to match
1698 * (the last component of) the name sent.
1700 * Well, not always; if `src' is a wildcard, we do
1701 * expect to get back filenames that don't correspond
1702 * exactly to it. Ideally in this case, we would like
1703 * to ensure that the returned filename actually
1704 * matches the wildcard pattern - but one of SCP's
1705 * protocol infelicities is that wildcard matching is
1706 * done at the server end _by the server's rules_ and
1707 * so in general this is infeasible. Hence, we only
1708 * accept filenames that don't correspond to `src' if
1709 * unsafe mode is enabled or we are using SFTP (which
1710 * resolves remote wildcards on the client side and can
1713 char *striptarget
, *stripsrc
;
1715 striptarget
= stripslashes(act
.name
, 1);
1716 if (striptarget
!= act
.name
) {
1717 tell_user(stderr
, "warning: remote host sent a compound"
1718 " pathname '%s'", act
.name
);
1719 tell_user(stderr
, " renaming local file to '%s'",
1724 * Also check to see if the target filename is '.' or
1725 * '..', or indeed '...' and so on because Windows
1726 * appears to interpret those like '..'.
1728 if (is_dots(striptarget
)) {
1729 bump("security violation: remote host attempted to write to"
1730 " a '.' or '..' path!");
1734 stripsrc
= stripslashes(src
, 1);
1735 if (strcmp(striptarget
, stripsrc
) &&
1736 !using_sftp
&& !scp_unsafe_mode
) {
1737 tell_user(stderr
, "warning: remote host tried to write "
1738 "to a file called '%s'", striptarget
);
1739 tell_user(stderr
, " when we requested a file "
1740 "called '%s'.", stripsrc
);
1741 tell_user(stderr
, " If this is a wildcard, "
1742 "consider upgrading to SSH 2 or using");
1743 tell_user(stderr
, " the '-unsafe' option. Renaming"
1744 " of this file has been disallowed.");
1745 /* Override the name the server provided with our own. */
1746 striptarget
= stripsrc
;
1750 if (targ
[0] != '\0')
1751 destfname
= dir_file_cat(targ
, striptarget
);
1753 destfname
= dupstr(striptarget
);
1756 * In this branch of the if, the target area is a
1757 * single file with an explicitly specified name in any
1758 * case, so there's no danger.
1760 destfname
= dupstr(targ
);
1762 attr
= file_type(destfname
);
1763 exists
= (attr
!= FILE_TYPE_NONEXISTENT
);
1765 if (act
.action
== SCP_SINK_DIR
) {
1766 if (exists
&& attr
!= FILE_TYPE_DIRECTORY
) {
1767 run_err("%s: Not a directory", destfname
);
1771 if (!create_directory(destfname
)) {
1772 run_err("%s: Cannot create directory", destfname
);
1776 sink(destfname
, NULL
);
1777 /* can we set the timestamp for directories ? */
1781 f
= open_new_file(destfname
);
1783 run_err("%s: Cannot create file", destfname
);
1787 if (scp_accept_filexfer())
1791 stat_starttime
= time(NULL
);
1793 stat_name
= stripslashes(destfname
, 1);
1796 while (received
< act
.size
) {
1797 char transbuf
[4096];
1800 if (blksize
> (int)(act
.size
- received
))
1801 blksize
= act
.size
- received
;
1802 read
= scp_recv_filedata(transbuf
, blksize
);
1804 bump("Lost connection");
1807 if (write_to_file(f
, transbuf
, read
) != (int)read
) {
1809 /* FIXME: in sftp we can actually abort the transfer */
1811 printf("\r%-25.25s | %50s\n",
1813 "Write error.. waiting for end of file");
1818 if (time(NULL
) > stat_lasttime
||
1819 received
+ read
== act
.size
) {
1820 stat_lasttime
= time(NULL
);
1821 print_stats(stat_name
, act
.size
, stat_bytes
,
1822 stat_starttime
, stat_lasttime
);
1828 set_file_times(f
, act
.mtime
, act
.atime
);
1833 run_err("%s: Write error", destfname
);
1836 (void) scp_finish_filerecv();
1843 * We will copy local files to a remote server.
1845 static void toremote(int argc
, char *argv
[])
1847 char *src
, *targ
, *host
, *user
;
1851 targ
= argv
[argc
- 1];
1853 /* Separate host from filename */
1857 bump("targ == NULL in toremote()");
1861 /* Substitute "." for emtpy target */
1863 /* Separate host and username */
1865 host
= strrchr(host
, '@');
1876 if (colon(argv
[0]) != NULL
)
1877 bump("%s: Remote to remote not supported", argv
[0]);
1879 wc_type
= test_wildcard(argv
[0], 1);
1880 if (wc_type
== WCTYPE_NONEXISTENT
)
1881 bump("%s: No such file or directory\n", argv
[0]);
1882 else if (wc_type
== WCTYPE_WILDCARD
)
1883 targetshouldbedirectory
= 1;
1886 cmd
= dupprintf("scp%s%s%s%s -t %s",
1887 verbose ?
" -v" : "",
1888 recursive ?
" -r" : "",
1889 preserve ?
" -p" : "",
1890 targetshouldbedirectory ?
" -d" : "", targ
);
1891 do_cmd(host
, user
, cmd
);
1894 scp_source_setup(targ
, targetshouldbedirectory
);
1896 for (i
= 0; i
< argc
- 1; i
++) {
1898 if (colon(src
) != NULL
) {
1899 tell_user(stderr
, "%s: Remote to remote not supported\n", src
);
1904 wc_type
= test_wildcard(src
, 1);
1905 if (wc_type
== WCTYPE_NONEXISTENT
) {
1906 run_err("%s: No such file or directory", src
);
1908 } else if (wc_type
== WCTYPE_FILENAME
) {
1912 WildcardMatcher
*wc
;
1915 wc
= begin_wildcard_matching(src
);
1917 run_err("%s: No such file or directory", src
);
1921 while ((filename
= wildcard_get_filename(wc
)) != NULL
) {
1926 finish_wildcard_matching(wc
);
1932 * We will copy files from a remote server to the local machine.
1934 static void tolocal(int argc
, char *argv
[])
1936 char *src
, *targ
, *host
, *user
;
1940 bump("More than one remote source not supported");
1945 /* Separate host from filename */
1949 bump("Local to local copy not supported");
1953 /* Substitute "." for empty filename */
1955 /* Separate username and hostname */
1957 host
= strrchr(host
, '@');
1967 cmd
= dupprintf("scp%s%s%s%s -f %s",
1968 verbose ?
" -v" : "",
1969 recursive ?
" -r" : "",
1970 preserve ?
" -p" : "",
1971 targetshouldbedirectory ?
" -d" : "", src
);
1972 do_cmd(host
, user
, cmd
);
1975 if (scp_sink_setup(src
, preserve
, recursive
))
1982 * We will issue a list command to get a remote directory.
1984 static void get_dir_list(int argc
, char *argv
[])
1986 char *src
, *host
, *user
;
1992 /* Separate host from filename */
1996 bump("Local to local copy not supported");
2000 /* Substitute "." for empty filename */
2002 /* Separate username and hostname */
2004 host
= strrchr(host
, '@');
2014 cmd
= snewn(4 * strlen(src
) + 100, char);
2015 strcpy(cmd
, "ls -la '");
2016 p
= cmd
+ strlen(cmd
);
2017 for (q
= src
; *q
; q
++) {
2030 do_cmd(host
, user
, cmd
);
2034 scp_sftp_listdir(src
);
2036 while (ssh_scp_recv(&c
, 1) > 0)
2037 tell_char(stdout
, c
);
2042 * Short description of parameters.
2044 static void usage(void)
2046 printf("PuTTY Secure Copy client\n");
2047 printf("%s\n", ver
);
2048 printf("Usage: pscp [options] [user@]host:source target\n");
2050 (" pscp [options] source [source...] [user@]host:target\n");
2051 printf(" pscp [options] -ls user@host:filespec\n");
2052 printf("Options:\n");
2053 printf(" -p preserve file attributes\n");
2054 printf(" -q quiet, don't show statistics\n");
2055 printf(" -r copy directories recursively\n");
2056 printf(" -v show verbose messages\n");
2057 printf(" -load sessname Load settings from saved session\n");
2058 printf(" -P port connect to specified port\n");
2059 printf(" -l user connect with specified username\n");
2060 printf(" -pw passw login with specified password\n");
2061 printf(" -1 -2 force use of particular SSH protocol version\n");
2062 printf(" -C enable compression\n");
2063 printf(" -i key private key file for authentication\n");
2064 printf(" -batch disable all interactive prompts\n");
2065 printf(" -unsafe allow server-side wildcards (DANGEROUS)\n");
2068 * -gui is an internal option, used by GUI front ends to get
2069 * pscp to pass progress reports back to them. It's not an
2070 * ordinary user-accessible option, so it shouldn't be part of
2071 * the command-line help. The only people who need to know
2072 * about it are programmers, and they can read the source.
2075 (" -gui hWnd GUI mode with the windows handle for receiving messages\n");
2080 void cmdline_error(char *p
, ...)
2083 fprintf(stderr
, "pscp: ");
2085 vfprintf(stderr
, p
, ap
);
2087 fprintf(stderr
, "\n try typing just \"pscp\" for help\n");
2092 * Main program. (Called `psftp_main' because it gets called from
2093 * *sftp.c; bit silly, I know, but it had to be called _something_.)
2095 int psftp_main(int argc
, char *argv
[])
2099 default_protocol
= PROT_TELNET
;
2102 #ifdef FLAG_SYNCAGENT
2106 cmdline_tooltype
= TOOLTYPE_FILETRANSFER
;
2107 ssh_get_line
= &console_get_line
;
2110 for (i
= 1; i
< argc
; i
++) {
2112 if (argv
[i
][0] != '-')
2114 ret
= cmdline_process_param(argv
[i
], i
+1<argc?argv
[i
+1]:NULL
, 1, &cfg
);
2116 cmdline_error("option \"%s\" requires an argument", argv
[i
]);
2117 } else if (ret
== 2) {
2118 i
++; /* skip next argument */
2119 } else if (ret
== 1) {
2120 /* We have our own verbosity in addition to `flags'. */
2121 if (flags
& FLAG_VERBOSE
)
2123 } else if (strcmp(argv
[i
], "-r") == 0) {
2125 } else if (strcmp(argv
[i
], "-p") == 0) {
2127 } else if (strcmp(argv
[i
], "-q") == 0) {
2129 } else if (strcmp(argv
[i
], "-h") == 0 || strcmp(argv
[i
], "-?") == 0) {
2131 } else if (strcmp(argv
[i
], "-gui") == 0 && i
+ 1 < argc
) {
2132 gui_enable(argv
[++i
]);
2134 console_batch_mode
= TRUE
;
2135 } else if (strcmp(argv
[i
], "-ls") == 0) {
2137 } else if (strcmp(argv
[i
], "-batch") == 0) {
2138 console_batch_mode
= 1;
2139 } else if (strcmp(argv
[i
], "-unsafe") == 0) {
2140 scp_unsafe_mode
= 1;
2141 } else if (strcmp(argv
[i
], "--") == 0) {
2145 cmdline_error("unknown option \"%s\"", argv
[i
]);
2155 get_dir_list(argc
, argv
);
2162 targetshouldbedirectory
= 1;
2164 if (colon(argv
[argc
- 1]) != NULL
)
2165 toremote(argc
, argv
);
2167 tolocal(argc
, argv
);
2170 if (back
!= NULL
&& back
->socket(backhandle
) != NULL
) {
2172 back
->special(backhandle
, TS_EOF
);
2173 ssh_scp_recv(&ch
, 1);
2178 gui_send_errcount(list
, errs
);
2180 return (errs
== 0 ?
0 : 1);