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 uint64 scp_sftp_fileoffset
;
678 void scp_source_setup(char *target
, int shouldbedir
)
682 * Find out whether the target filespec is in fact a
685 struct sftp_packet
*pktin
;
686 struct sftp_request
*req
, *rreq
;
687 struct fxp_attrs attrs
;
691 tell_user(stderr
, "unable to initialise SFTP: %s", fxp_error());
696 sftp_register(req
= fxp_stat_send(target
));
697 rreq
= sftp_find_request(pktin
= sftp_recv());
699 ret
= fxp_stat_recv(pktin
, rreq
, &attrs
);
701 if (!ret
|| !(attrs
.flags
& SSH_FILEXFER_ATTR_PERMISSIONS
))
702 scp_sftp_targetisdir
= 0;
704 scp_sftp_targetisdir
= (attrs
.permissions
& 0040000) != 0;
706 if (shouldbedir
&& !scp_sftp_targetisdir
) {
707 bump("pscp: remote filespec %s: not a directory\n", target
);
710 scp_sftp_remotepath
= dupstr(target
);
718 int scp_send_errmsg(char *str
)
721 /* do nothing; we never need to send our errors to the server */
723 back
->send(backhandle
, "\001", 1);/* scp protocol error prefix */
724 back
->send(backhandle
, str
, strlen(str
));
726 return 0; /* can't fail */
729 int scp_send_filetimes(unsigned long mtime
, unsigned long atime
)
732 scp_sftp_mtime
= mtime
;
733 scp_sftp_atime
= atime
;
738 sprintf(buf
, "T%lu 0 %lu 0\n", mtime
, atime
);
739 back
->send(backhandle
, buf
, strlen(buf
));
744 int scp_send_filename(char *name
, unsigned long size
, int modes
)
748 struct sftp_packet
*pktin
;
749 struct sftp_request
*req
, *rreq
;
751 if (scp_sftp_targetisdir
) {
752 fullname
= dupcat(scp_sftp_remotepath
, "/", name
, NULL
);
754 fullname
= dupstr(scp_sftp_remotepath
);
757 sftp_register(req
= fxp_open_send(fullname
, SSH_FXF_WRITE
|
758 SSH_FXF_CREAT
| SSH_FXF_TRUNC
));
759 rreq
= sftp_find_request(pktin
= sftp_recv());
761 scp_sftp_filehandle
= fxp_open_recv(pktin
, rreq
);
763 if (!scp_sftp_filehandle
) {
764 tell_user(stderr
, "pscp: unable to open %s: %s",
765 fullname
, fxp_error());
769 scp_sftp_fileoffset
= uint64_make(0, 0);
774 sprintf(buf
, "C%04o %lu ", modes
, size
);
775 back
->send(backhandle
, buf
, strlen(buf
));
776 back
->send(backhandle
, name
, strlen(name
));
777 back
->send(backhandle
, "\n", 1);
782 int scp_send_filedata(char *data
, int len
)
786 struct sftp_packet
*pktin
;
787 struct sftp_request
*req
, *rreq
;
789 if (!scp_sftp_filehandle
) {
793 sftp_register(req
= fxp_write_send(scp_sftp_filehandle
,
794 data
, scp_sftp_fileoffset
, len
));
795 rreq
= sftp_find_request(pktin
= sftp_recv());
797 ret
= fxp_write_recv(pktin
, rreq
);
800 tell_user(stderr
, "error while writing: %s\n", fxp_error());
804 scp_sftp_fileoffset
= uint64_add32(scp_sftp_fileoffset
, len
);
807 int bufsize
= back
->send(backhandle
, data
, len
);
810 * If the network transfer is backing up - that is, the
811 * remote site is not accepting data as fast as we can
812 * produce it - then we must loop on network events until
813 * we have space in the buffer again.
815 while (bufsize
> MAX_SCP_BUFSIZE
) {
816 if (ssh_sftp_loop_iteration() < 0)
818 bufsize
= back
->sendbuffer(backhandle
);
825 int scp_send_finish(void)
828 struct fxp_attrs attrs
;
829 struct sftp_packet
*pktin
;
830 struct sftp_request
*req
, *rreq
;
833 if (!scp_sftp_filehandle
) {
837 attrs
.flags
= SSH_FILEXFER_ATTR_ACMODTIME
;
838 attrs
.atime
= scp_sftp_atime
;
839 attrs
.mtime
= scp_sftp_mtime
;
840 sftp_register(req
= fxp_fsetstat_send(scp_sftp_filehandle
, attrs
));
841 rreq
= sftp_find_request(pktin
= sftp_recv());
843 ret
= fxp_fsetstat_recv(pktin
, rreq
);
845 tell_user(stderr
, "unable to set file times: %s\n", fxp_error());
849 sftp_register(req
= fxp_close_send(scp_sftp_filehandle
));
850 rreq
= sftp_find_request(pktin
= sftp_recv());
852 fxp_close_recv(pktin
, rreq
);
856 back
->send(backhandle
, "", 1);
861 char *scp_save_remotepath(void)
864 return scp_sftp_remotepath
;
869 void scp_restore_remotepath(char *data
)
872 scp_sftp_remotepath
= data
;
875 int scp_send_dirname(char *name
, int modes
)
880 struct fxp_attrs attrs
;
881 struct sftp_packet
*pktin
;
882 struct sftp_request
*req
, *rreq
;
885 if (scp_sftp_targetisdir
) {
886 fullname
= dupcat(scp_sftp_remotepath
, "/", name
, NULL
);
888 fullname
= dupstr(scp_sftp_remotepath
);
892 * We don't worry about whether we managed to create the
893 * directory, because if it exists already it's OK just to
894 * use it. Instead, we will stat it afterwards, and if it
895 * exists and is a directory we will assume we were either
896 * successful or it didn't matter.
898 sftp_register(req
= fxp_mkdir_send(fullname
));
899 rreq
= sftp_find_request(pktin
= sftp_recv());
901 ret
= fxp_mkdir_recv(pktin
, rreq
);
906 err
= "server reported no error";
908 sftp_register(req
= fxp_stat_send(fullname
));
909 rreq
= sftp_find_request(pktin
= sftp_recv());
911 ret
= fxp_stat_recv(pktin
, rreq
, &attrs
);
913 if (!ret
|| !(attrs
.flags
& SSH_FILEXFER_ATTR_PERMISSIONS
) ||
914 !(attrs
.permissions
& 0040000)) {
915 tell_user(stderr
, "unable to create directory %s: %s",
921 scp_sftp_remotepath
= fullname
;
926 sprintf(buf
, "D%04o 0 ", modes
);
927 back
->send(backhandle
, buf
, strlen(buf
));
928 back
->send(backhandle
, name
, strlen(name
));
929 back
->send(backhandle
, "\n", 1);
934 int scp_send_enddir(void)
937 sfree(scp_sftp_remotepath
);
940 back
->send(backhandle
, "E\n", 2);
946 * Yes, I know; I have an scp_sink_setup _and_ an scp_sink_init.
947 * That's bad. The difference is that scp_sink_setup is called once
948 * right at the start, whereas scp_sink_init is called to
949 * initialise every level of recursion in the protocol.
951 int scp_sink_setup(char *source
, int preserve
, int recursive
)
957 tell_user(stderr
, "unable to initialise SFTP: %s", fxp_error());
962 * It's possible that the source string we've been given
963 * contains a wildcard. If so, we must split the directory
964 * away from the wildcard itself (throwing an error if any
965 * wildcardness comes before the final slash) and arrange
966 * things so that a dirstack entry will be set up.
968 newsource
= snewn(1+strlen(source
), char);
969 if (!wc_unescape(newsource
, source
)) {
970 /* Yes, here we go; it's a wildcard. Bah. */
971 char *dupsource
, *lastpart
, *dirpart
, *wildcard
;
972 dupsource
= dupstr(source
);
973 lastpart
= stripslashes(dupsource
, 0);
974 wildcard
= dupstr(lastpart
);
976 if (*dupsource
&& dupsource
[1]) {
978 * The remains of dupsource are at least two
979 * characters long, meaning the pathname wasn't
980 * empty or just `/'. Hence, we remove the trailing
984 } else if (!*dupsource
) {
986 * The remains of dupsource are _empty_ - the whole
987 * pathname was a wildcard. Hence we need to
988 * replace it with ".".
991 dupsource
= dupstr(".");
995 * Now we have separated our string into dupsource (the
996 * directory part) and wildcard. Both of these will
997 * need freeing at some point. Next step is to remove
998 * wildcard escapes from the directory part, throwing
999 * an error if it contains a real wildcard.
1001 dirpart
= snewn(1+strlen(dupsource
), char);
1002 if (!wc_unescape(dirpart
, dupsource
)) {
1003 tell_user(stderr
, "%s: multiple-level wildcards unsupported",
1013 * Now we have dirpart (unescaped, ie a valid remote
1014 * path), and wildcard (a wildcard). This will be
1015 * sufficient to arrange a dirstack entry.
1017 scp_sftp_remotepath
= dirpart
;
1018 scp_sftp_wildcard
= wildcard
;
1021 scp_sftp_remotepath
= newsource
;
1022 scp_sftp_wildcard
= NULL
;
1024 scp_sftp_preserve
= preserve
;
1025 scp_sftp_recursive
= recursive
;
1026 scp_sftp_donethistarget
= 0;
1027 scp_sftp_dirstack_head
= NULL
;
1032 int scp_sink_init(void)
1035 back
->send(backhandle
, "", 1);
1040 #define SCP_SINK_FILE 1
1041 #define SCP_SINK_DIR 2
1042 #define SCP_SINK_ENDDIR 3
1043 #define SCP_SINK_RETRY 4 /* not an action; just try again */
1044 struct scp_sink_action
{
1045 int action
; /* FILE, DIR, ENDDIR */
1046 char *buf
; /* will need freeing after use */
1047 char *name
; /* filename or dirname (not ENDDIR) */
1048 int mode
; /* access mode (not ENDDIR) */
1049 unsigned long size
; /* file size (not ENDDIR) */
1050 int settime
; /* 1 if atime and mtime are filled */
1051 unsigned long atime
, mtime
; /* access times for the file */
1054 int scp_get_sink_action(struct scp_sink_action
*act
)
1058 int must_free_fname
;
1059 struct fxp_attrs attrs
;
1060 struct sftp_packet
*pktin
;
1061 struct sftp_request
*req
, *rreq
;
1064 if (!scp_sftp_dirstack_head
) {
1065 if (!scp_sftp_donethistarget
) {
1067 * Simple case: we are only dealing with one file.
1069 fname
= scp_sftp_remotepath
;
1070 must_free_fname
= 0;
1071 scp_sftp_donethistarget
= 1;
1074 * Even simpler case: one file _which we've done_.
1075 * Return 1 (finished).
1081 * We're now in the middle of stepping through a list
1082 * of names returned from fxp_readdir(); so let's carry
1085 struct scp_sftp_dirstack
*head
= scp_sftp_dirstack_head
;
1086 while (head
->namepos
< head
->namelen
&&
1087 (is_dots(head
->names
[head
->namepos
].filename
) ||
1089 !wc_match(head
->wildcard
,
1090 head
->names
[head
->namepos
].filename
))))
1091 head
->namepos
++; /* skip . and .. */
1092 if (head
->namepos
< head
->namelen
) {
1093 head
->matched_something
= 1;
1094 fname
= dupcat(head
->dirpath
, "/",
1095 head
->names
[head
->namepos
++].filename
,
1097 must_free_fname
= 1;
1100 * We've come to the end of the list; pop it off
1101 * the stack and return an ENDDIR action (or RETRY
1102 * if this was a wildcard match).
1104 if (head
->wildcard
) {
1105 act
->action
= SCP_SINK_RETRY
;
1106 if (!head
->matched_something
) {
1107 tell_user(stderr
, "pscp: wildcard '%s' matched "
1108 "no files", head
->wildcard
);
1111 sfree(head
->wildcard
);
1114 act
->action
= SCP_SINK_ENDDIR
;
1117 sfree(head
->dirpath
);
1119 scp_sftp_dirstack_head
= head
->next
;
1127 * Now we have a filename. Stat it, and see if it's a file
1130 sftp_register(req
= fxp_stat_send(fname
));
1131 rreq
= sftp_find_request(pktin
= sftp_recv());
1132 assert(rreq
== req
);
1133 ret
= fxp_stat_recv(pktin
, rreq
, &attrs
);
1135 if (!ret
|| !(attrs
.flags
& SSH_FILEXFER_ATTR_PERMISSIONS
)) {
1136 tell_user(stderr
, "unable to identify %s: %s", fname
,
1137 ret ?
"file type not supplied" : fxp_error());
1142 if (attrs
.permissions
& 0040000) {
1143 struct scp_sftp_dirstack
*newitem
;
1144 struct fxp_handle
*dirhandle
;
1145 int nnames
, namesize
;
1146 struct fxp_name
*ournames
;
1147 struct fxp_names
*names
;
1150 * It's a directory. If we're not in recursive mode,
1151 * this merits a complaint (which is fatal if the name
1152 * was specified directly, but not if it was matched by
1155 * We skip this complaint completely if
1156 * scp_sftp_wildcard is set, because that's an
1157 * indication that we're not actually supposed to
1158 * _recursively_ transfer the dir, just scan it for
1159 * things matching the wildcard.
1161 if (!scp_sftp_recursive
&& !scp_sftp_wildcard
) {
1162 tell_user(stderr
, "pscp: %s: is a directory", fname
);
1164 if (must_free_fname
) sfree(fname
);
1165 if (scp_sftp_dirstack_head
) {
1166 act
->action
= SCP_SINK_RETRY
;
1174 * Otherwise, the fun begins. We must fxp_opendir() the
1175 * directory, slurp the filenames into memory, return
1176 * SCP_SINK_DIR (unless this is a wildcard match), and
1177 * set targetisdir. The next time we're called, we will
1178 * run through the list of filenames one by one,
1179 * matching them against a wildcard if present.
1181 * If targetisdir is _already_ set (meaning we're
1182 * already in the middle of going through another such
1183 * list), we must push the other (target,namelist) pair
1186 sftp_register(req
= fxp_opendir_send(fname
));
1187 rreq
= sftp_find_request(pktin
= sftp_recv());
1188 assert(rreq
== req
);
1189 dirhandle
= fxp_opendir_recv(pktin
, rreq
);
1192 tell_user(stderr
, "scp: unable to open directory %s: %s",
1193 fname
, fxp_error());
1194 if (must_free_fname
) sfree(fname
);
1198 nnames
= namesize
= 0;
1203 sftp_register(req
= fxp_readdir_send(dirhandle
));
1204 rreq
= sftp_find_request(pktin
= sftp_recv());
1205 assert(rreq
== req
);
1206 names
= fxp_readdir_recv(pktin
, rreq
);
1208 if (names
== NULL
) {
1209 if (fxp_error_type() == SSH_FX_EOF
)
1211 tell_user(stderr
, "scp: reading directory %s: %s\n",
1212 fname
, fxp_error());
1213 if (must_free_fname
) sfree(fname
);
1218 if (names
->nnames
== 0) {
1219 fxp_free_names(names
);
1222 if (nnames
+ names
->nnames
>= namesize
) {
1223 namesize
+= names
->nnames
+ 128;
1224 ournames
= sresize(ournames
, namesize
, struct fxp_name
);
1226 for (i
= 0; i
< names
->nnames
; i
++)
1227 ournames
[nnames
++] = names
->names
[i
];
1228 names
->nnames
= 0; /* prevent free_names */
1229 fxp_free_names(names
);
1231 sftp_register(req
= fxp_close_send(dirhandle
));
1232 rreq
= sftp_find_request(pktin
= sftp_recv());
1233 assert(rreq
== req
);
1234 fxp_close_recv(pktin
, rreq
);
1236 newitem
= snew(struct scp_sftp_dirstack
);
1237 newitem
->next
= scp_sftp_dirstack_head
;
1238 newitem
->names
= ournames
;
1239 newitem
->namepos
= 0;
1240 newitem
->namelen
= nnames
;
1241 if (must_free_fname
)
1242 newitem
->dirpath
= fname
;
1244 newitem
->dirpath
= dupstr(fname
);
1245 if (scp_sftp_wildcard
) {
1246 newitem
->wildcard
= scp_sftp_wildcard
;
1247 newitem
->matched_something
= 0;
1248 scp_sftp_wildcard
= NULL
;
1250 newitem
->wildcard
= NULL
;
1252 scp_sftp_dirstack_head
= newitem
;
1254 if (newitem
->wildcard
) {
1255 act
->action
= SCP_SINK_RETRY
;
1257 act
->action
= SCP_SINK_DIR
;
1258 act
->buf
= dupstr(stripslashes(fname
, 0));
1259 act
->name
= act
->buf
;
1260 act
->size
= 0; /* duhh, it's a directory */
1261 act
->mode
= 07777 & attrs
.permissions
;
1262 if (scp_sftp_preserve
&&
1263 (attrs
.flags
& SSH_FILEXFER_ATTR_ACMODTIME
)) {
1264 act
->atime
= attrs
.atime
;
1265 act
->mtime
= attrs
.mtime
;
1274 * It's a file. Return SCP_SINK_FILE.
1276 act
->action
= SCP_SINK_FILE
;
1277 act
->buf
= dupstr(stripslashes(fname
, 0));
1278 act
->name
= act
->buf
;
1279 if (attrs
.flags
& SSH_FILEXFER_ATTR_SIZE
) {
1280 if (uint64_compare(attrs
.size
,
1281 uint64_make(0, ULONG_MAX
)) > 0) {
1282 act
->size
= ULONG_MAX
; /* *boggle* */
1284 act
->size
= attrs
.size
.lo
;
1286 act
->size
= ULONG_MAX
; /* no idea */
1287 act
->mode
= 07777 & attrs
.permissions
;
1288 if (scp_sftp_preserve
&&
1289 (attrs
.flags
& SSH_FILEXFER_ATTR_ACMODTIME
)) {
1290 act
->atime
= attrs
.atime
;
1291 act
->mtime
= attrs
.mtime
;
1295 if (must_free_fname
)
1296 scp_sftp_currentname
= fname
;
1298 scp_sftp_currentname
= dupstr(fname
);
1313 if (ssh_scp_recv(&ch
, 1) <= 0)
1316 bump("Protocol error: Unexpected newline");
1320 if (ssh_scp_recv(&ch
, 1) <= 0)
1321 bump("Lost connection");
1324 act
->buf
= sresize(act
->buf
, bufsize
, char);
1327 } while (ch
!= '\n');
1328 act
->buf
[i
- 1] = '\0';
1330 case '\01': /* error */
1331 tell_user(stderr
, "%s\n", act
->buf
);
1333 continue; /* go round again */
1334 case '\02': /* fatal error */
1335 bump("%s", act
->buf
);
1337 back
->send(backhandle
, "", 1);
1338 act
->action
= SCP_SINK_ENDDIR
;
1341 if (sscanf(act
->buf
, "%ld %*d %ld %*d",
1342 &act
->mtime
, &act
->atime
) == 2) {
1344 back
->send(backhandle
, "", 1);
1345 continue; /* go round again */
1347 bump("Protocol error: Illegal time format");
1350 act
->action
= (action
== 'C' ? SCP_SINK_FILE
: SCP_SINK_DIR
);
1353 bump("Protocol error: Expected control record");
1356 * We will go round this loop only once, unless we hit
1363 * If we get here, we must have seen SCP_SINK_FILE or
1366 if (sscanf(act
->buf
, "%o %lu %n", &act
->mode
, &act
->size
, &i
) != 2)
1367 bump("Protocol error: Illegal file descriptor format");
1368 act
->name
= act
->buf
+ i
;
1373 int scp_accept_filexfer(void)
1376 struct sftp_packet
*pktin
;
1377 struct sftp_request
*req
, *rreq
;
1379 sftp_register(req
= fxp_open_send(scp_sftp_currentname
, SSH_FXF_READ
));
1380 rreq
= sftp_find_request(pktin
= sftp_recv());
1381 assert(rreq
== req
);
1382 scp_sftp_filehandle
= fxp_open_recv(pktin
, rreq
);
1384 if (!scp_sftp_filehandle
) {
1385 tell_user(stderr
, "pscp: unable to open %s: %s",
1386 scp_sftp_currentname
, fxp_error());
1390 scp_sftp_fileoffset
= uint64_make(0, 0);
1391 sfree(scp_sftp_currentname
);
1394 back
->send(backhandle
, "", 1);
1395 return 0; /* can't fail */
1399 int scp_recv_filedata(char *data
, int len
)
1402 struct sftp_packet
*pktin
;
1403 struct sftp_request
*req
, *rreq
;
1406 sftp_register(req
= fxp_read_send(scp_sftp_filehandle
,
1407 scp_sftp_fileoffset
, len
));
1408 rreq
= sftp_find_request(pktin
= sftp_recv());
1409 assert(rreq
== req
);
1410 actuallen
= fxp_read_recv(pktin
, rreq
, data
, len
);
1412 if (actuallen
== -1 && fxp_error_type() != SSH_FX_EOF
) {
1413 tell_user(stderr
, "pscp: error while reading: %s", fxp_error());
1420 scp_sftp_fileoffset
= uint64_add32(scp_sftp_fileoffset
, actuallen
);
1424 return ssh_scp_recv(data
, len
);
1428 int scp_finish_filerecv(void)
1431 struct sftp_packet
*pktin
;
1432 struct sftp_request
*req
, *rreq
;
1434 sftp_register(req
= fxp_close_send(scp_sftp_filehandle
));
1435 rreq
= sftp_find_request(pktin
= sftp_recv());
1436 assert(rreq
== req
);
1437 fxp_close_recv(pktin
, rreq
);
1440 back
->send(backhandle
, "", 1);
1445 /* ----------------------------------------------------------------------
1446 * Send an error message to the other side and to the screen.
1447 * Increment error counter.
1449 static void run_err(const char *fmt
, ...)
1455 str
= dupvprintf(fmt
, ap
);
1456 str2
= dupcat("scp: ", str
, "\n", NULL
);
1458 scp_send_errmsg(str2
);
1459 tell_user(stderr
, "%s", str2
);
1465 * Execute the source part of the SCP protocol.
1467 static void source(char *src
)
1470 unsigned long mtime
, atime
;
1475 unsigned long stat_bytes
;
1476 time_t stat_starttime
, stat_lasttime
;
1478 attr
= file_type(src
);
1479 if (attr
== FILE_TYPE_NONEXISTENT
||
1480 attr
== FILE_TYPE_WEIRD
) {
1481 run_err("%s: %s file or directory", src
,
1482 (attr
== FILE_TYPE_WEIRD ?
"Not a" : "No such"));
1486 if (attr
== FILE_TYPE_DIRECTORY
) {
1489 * Avoid . and .. directories.
1492 p
= strrchr(src
, '/');
1494 p
= strrchr(src
, '\\');
1499 if (!strcmp(p
, ".") || !strcmp(p
, ".."))
1500 /* skip . and .. */ ;
1504 run_err("%s: not a regular file", src
);
1509 if ((last
= strrchr(src
, '/')) == NULL
)
1513 if (strrchr(last
, '\\') != NULL
)
1514 last
= strrchr(last
, '\\') + 1;
1515 if (last
== src
&& strchr(src
, ':') != NULL
)
1516 last
= strchr(src
, ':') + 1;
1518 f
= open_existing_file(src
, &size
, &mtime
, &atime
);
1520 run_err("%s: Cannot open file", src
);
1524 if (scp_send_filetimes(mtime
, atime
))
1529 tell_user(stderr
, "Sending file %s, size=%lu", last
, size
);
1530 if (scp_send_filename(last
, size
, 0644))
1534 stat_starttime
= time(NULL
);
1537 for (i
= 0; i
< size
; i
+= 4096) {
1538 char transbuf
[4096];
1543 if ((j
= read_from_file(f
, transbuf
, k
)) != k
) {
1546 bump("%s: Read error", src
);
1548 if (scp_send_filedata(transbuf
, k
))
1549 bump("%s: Network error occurred", src
);
1553 if (time(NULL
) != stat_lasttime
|| i
+ k
== size
) {
1554 stat_lasttime
= time(NULL
);
1555 print_stats(last
, size
, stat_bytes
,
1556 stat_starttime
, stat_lasttime
);
1563 (void) scp_send_finish();
1567 * Recursively send the contents of a directory.
1569 static void rsource(char *src
)
1575 if ((last
= strrchr(src
, '/')) == NULL
)
1579 if (strrchr(last
, '\\') != NULL
)
1580 last
= strrchr(last
, '\\') + 1;
1581 if (last
== src
&& strchr(src
, ':') != NULL
)
1582 last
= strchr(src
, ':') + 1;
1584 /* maybe send filetime */
1586 save_target
= scp_save_remotepath();
1589 tell_user(stderr
, "Entering directory: %s", last
);
1590 if (scp_send_dirname(last
, 0755))
1593 dir
= open_directory(src
);
1596 while ((filename
= read_filename(dir
)) != NULL
) {
1597 char *foundfile
= dupcat(src
, "/", filename
, NULL
);
1603 close_directory(dir
);
1605 (void) scp_send_enddir();
1607 scp_restore_remotepath(save_target
);
1611 * Execute the sink part of the SCP protocol.
1613 static void sink(char *targ
, char *src
)
1620 unsigned long received
;
1622 unsigned long stat_bytes
;
1623 time_t stat_starttime
, stat_lasttime
;
1626 attr
= file_type(targ
);
1627 if (attr
== FILE_TYPE_DIRECTORY
)
1630 if (targetshouldbedirectory
&& !targisdir
)
1631 bump("%s: Not a directory", targ
);
1635 struct scp_sink_action act
;
1636 if (scp_get_sink_action(&act
))
1639 if (act
.action
== SCP_SINK_ENDDIR
)
1642 if (act
.action
== SCP_SINK_RETRY
)
1647 * Prevent the remote side from maliciously writing to
1648 * files outside the target area by sending a filename
1649 * containing `../'. In fact, it shouldn't be sending
1650 * filenames with any slashes or colons in at all; so
1651 * we'll find the last slash, backslash or colon in the
1652 * filename and use only the part after that. (And
1655 * In addition, we also ensure here that if we're
1656 * copying a single file and the target is a directory
1657 * (common usage: `pscp host:filename .') the remote
1658 * can't send us a _different_ file name. We can
1659 * distinguish this case because `src' will be non-NULL
1660 * and the last component of that will fail to match
1661 * (the last component of) the name sent.
1663 * Well, not always; if `src' is a wildcard, we do
1664 * expect to get back filenames that don't correspond
1665 * exactly to it. Ideally in this case, we would like
1666 * to ensure that the returned filename actually
1667 * matches the wildcard pattern - but one of SCP's
1668 * protocol infelicities is that wildcard matching is
1669 * done at the server end _by the server's rules_ and
1670 * so in general this is infeasible. Hence, we only
1671 * accept filenames that don't correspond to `src' if
1672 * unsafe mode is enabled or we are using SFTP (which
1673 * resolves remote wildcards on the client side and can
1676 char *striptarget
, *stripsrc
;
1678 striptarget
= stripslashes(act
.name
, 1);
1679 if (striptarget
!= act
.name
) {
1680 tell_user(stderr
, "warning: remote host sent a compound"
1681 " pathname '%s'", act
.name
);
1682 tell_user(stderr
, " renaming local file to '%s'",
1687 * Also check to see if the target filename is '.' or
1688 * '..', or indeed '...' and so on because Windows
1689 * appears to interpret those like '..'.
1691 if (is_dots(striptarget
)) {
1692 bump("security violation: remote host attempted to write to"
1693 " a '.' or '..' path!");
1697 stripsrc
= stripslashes(src
, 1);
1698 if (strcmp(striptarget
, stripsrc
) &&
1699 !using_sftp
&& !scp_unsafe_mode
) {
1700 tell_user(stderr
, "warning: remote host tried to write "
1701 "to a file called '%s'", striptarget
);
1702 tell_user(stderr
, " when we requested a file "
1703 "called '%s'.", stripsrc
);
1704 tell_user(stderr
, " If this is a wildcard, "
1705 "consider upgrading to SSH 2 or using");
1706 tell_user(stderr
, " the '-unsafe' option. Renaming"
1707 " of this file has been disallowed.");
1708 /* Override the name the server provided with our own. */
1709 striptarget
= stripsrc
;
1713 if (targ
[0] != '\0')
1714 destfname
= dir_file_cat(targ
, striptarget
);
1716 destfname
= dupstr(striptarget
);
1719 * In this branch of the if, the target area is a
1720 * single file with an explicitly specified name in any
1721 * case, so there's no danger.
1723 destfname
= dupstr(targ
);
1725 attr
= file_type(destfname
);
1726 exists
= (attr
!= FILE_TYPE_NONEXISTENT
);
1728 if (act
.action
== SCP_SINK_DIR
) {
1729 if (exists
&& attr
!= FILE_TYPE_DIRECTORY
) {
1730 run_err("%s: Not a directory", destfname
);
1734 if (!create_directory(destfname
)) {
1735 run_err("%s: Cannot create directory", destfname
);
1739 sink(destfname
, NULL
);
1740 /* can we set the timestamp for directories ? */
1744 f
= open_new_file(destfname
);
1746 run_err("%s: Cannot create file", destfname
);
1750 if (scp_accept_filexfer())
1754 stat_starttime
= time(NULL
);
1756 stat_name
= stripslashes(destfname
, 1);
1759 while (received
< act
.size
) {
1760 char transbuf
[4096];
1763 if (blksize
> (int)(act
.size
- received
))
1764 blksize
= act
.size
- received
;
1765 read
= scp_recv_filedata(transbuf
, blksize
);
1767 bump("Lost connection");
1770 if (write_to_file(f
, transbuf
, read
) != (int)read
) {
1772 /* FIXME: in sftp we can actually abort the transfer */
1774 printf("\r%-25.25s | %50s\n",
1776 "Write error.. waiting for end of file");
1781 if (time(NULL
) > stat_lasttime
||
1782 received
+ read
== act
.size
) {
1783 stat_lasttime
= time(NULL
);
1784 print_stats(stat_name
, act
.size
, stat_bytes
,
1785 stat_starttime
, stat_lasttime
);
1791 set_file_times(f
, act
.mtime
, act
.atime
);
1796 run_err("%s: Write error", destfname
);
1799 (void) scp_finish_filerecv();
1806 * We will copy local files to a remote server.
1808 static void toremote(int argc
, char *argv
[])
1810 char *src
, *targ
, *host
, *user
;
1814 targ
= argv
[argc
- 1];
1816 /* Separate host from filename */
1820 bump("targ == NULL in toremote()");
1824 /* Substitute "." for emtpy target */
1826 /* Separate host and username */
1828 host
= strrchr(host
, '@');
1839 if (colon(argv
[0]) != NULL
)
1840 bump("%s: Remote to remote not supported", argv
[0]);
1842 wc_type
= test_wildcard(argv
[0], 1);
1843 if (wc_type
== WCTYPE_NONEXISTENT
)
1844 bump("%s: No such file or directory\n", argv
[0]);
1845 else if (wc_type
== WCTYPE_WILDCARD
)
1846 targetshouldbedirectory
= 1;
1849 cmd
= dupprintf("scp%s%s%s%s -t %s",
1850 verbose ?
" -v" : "",
1851 recursive ?
" -r" : "",
1852 preserve ?
" -p" : "",
1853 targetshouldbedirectory ?
" -d" : "", targ
);
1854 do_cmd(host
, user
, cmd
);
1857 scp_source_setup(targ
, targetshouldbedirectory
);
1859 for (i
= 0; i
< argc
- 1; i
++) {
1861 if (colon(src
) != NULL
) {
1862 tell_user(stderr
, "%s: Remote to remote not supported\n", src
);
1867 wc_type
= test_wildcard(src
, 1);
1868 if (wc_type
== WCTYPE_NONEXISTENT
) {
1869 run_err("%s: No such file or directory", src
);
1871 } else if (wc_type
== WCTYPE_FILENAME
) {
1875 WildcardMatcher
*wc
;
1878 wc
= begin_wildcard_matching(src
);
1880 run_err("%s: No such file or directory", src
);
1884 while ((filename
= wildcard_get_filename(wc
)) != NULL
) {
1889 finish_wildcard_matching(wc
);
1895 * We will copy files from a remote server to the local machine.
1897 static void tolocal(int argc
, char *argv
[])
1899 char *src
, *targ
, *host
, *user
;
1903 bump("More than one remote source not supported");
1908 /* Separate host from filename */
1912 bump("Local to local copy not supported");
1916 /* Substitute "." for empty filename */
1918 /* Separate username and hostname */
1920 host
= strrchr(host
, '@');
1930 cmd
= dupprintf("scp%s%s%s%s -f %s",
1931 verbose ?
" -v" : "",
1932 recursive ?
" -r" : "",
1933 preserve ?
" -p" : "",
1934 targetshouldbedirectory ?
" -d" : "", src
);
1935 do_cmd(host
, user
, cmd
);
1938 if (scp_sink_setup(src
, preserve
, recursive
))
1945 * We will issue a list command to get a remote directory.
1947 static void get_dir_list(int argc
, char *argv
[])
1949 char *src
, *host
, *user
;
1955 /* Separate host from filename */
1959 bump("Local to local copy not supported");
1963 /* Substitute "." for empty filename */
1965 /* Separate username and hostname */
1967 host
= strrchr(host
, '@');
1977 cmd
= snewn(4 * strlen(src
) + 100, char);
1978 strcpy(cmd
, "ls -la '");
1979 p
= cmd
+ strlen(cmd
);
1980 for (q
= src
; *q
; q
++) {
1993 do_cmd(host
, user
, cmd
);
1997 scp_sftp_listdir(src
);
1999 while (ssh_scp_recv(&c
, 1) > 0)
2000 tell_char(stdout
, c
);
2005 * Short description of parameters.
2007 static void usage(void)
2009 printf("PuTTY Secure Copy client\n");
2010 printf("%s\n", ver
);
2011 printf("Usage: pscp [options] [user@]host:source target\n");
2013 (" pscp [options] source [source...] [user@]host:target\n");
2014 printf(" pscp [options] -ls user@host:filespec\n");
2015 printf("Options:\n");
2016 printf(" -p preserve file attributes\n");
2017 printf(" -q quiet, don't show statistics\n");
2018 printf(" -r copy directories recursively\n");
2019 printf(" -v show verbose messages\n");
2020 printf(" -load sessname Load settings from saved session\n");
2021 printf(" -P port connect to specified port\n");
2022 printf(" -l user connect with specified username\n");
2023 printf(" -pw passw login with specified password\n");
2024 printf(" -1 -2 force use of particular SSH protocol version\n");
2025 printf(" -C enable compression\n");
2026 printf(" -i key private key file for authentication\n");
2027 printf(" -batch disable all interactive prompts\n");
2028 printf(" -unsafe allow server-side wildcards (DANGEROUS)\n");
2031 * -gui is an internal option, used by GUI front ends to get
2032 * pscp to pass progress reports back to them. It's not an
2033 * ordinary user-accessible option, so it shouldn't be part of
2034 * the command-line help. The only people who need to know
2035 * about it are programmers, and they can read the source.
2038 (" -gui hWnd GUI mode with the windows handle for receiving messages\n");
2043 void cmdline_error(char *p
, ...)
2046 fprintf(stderr
, "pscp: ");
2048 vfprintf(stderr
, p
, ap
);
2050 fprintf(stderr
, "\n try typing just \"pscp\" for help\n");
2055 * Main program. (Called `psftp_main' because it gets called from
2056 * *sftp.c; bit silly, I know, but it had to be called _something_.)
2058 int psftp_main(int argc
, char *argv
[])
2062 default_protocol
= PROT_TELNET
;
2065 #ifdef FLAG_SYNCAGENT
2069 cmdline_tooltype
= TOOLTYPE_FILETRANSFER
;
2070 ssh_get_line
= &console_get_line
;
2073 for (i
= 1; i
< argc
; i
++) {
2075 if (argv
[i
][0] != '-')
2077 ret
= cmdline_process_param(argv
[i
], i
+1<argc?argv
[i
+1]:NULL
, 1, &cfg
);
2079 cmdline_error("option \"%s\" requires an argument", argv
[i
]);
2080 } else if (ret
== 2) {
2081 i
++; /* skip next argument */
2082 } else if (ret
== 1) {
2083 /* We have our own verbosity in addition to `flags'. */
2084 if (flags
& FLAG_VERBOSE
)
2086 } else if (strcmp(argv
[i
], "-r") == 0) {
2088 } else if (strcmp(argv
[i
], "-p") == 0) {
2090 } else if (strcmp(argv
[i
], "-q") == 0) {
2092 } else if (strcmp(argv
[i
], "-h") == 0 || strcmp(argv
[i
], "-?") == 0) {
2094 } else if (strcmp(argv
[i
], "-gui") == 0 && i
+ 1 < argc
) {
2095 gui_enable(argv
[++i
]);
2097 console_batch_mode
= TRUE
;
2098 } else if (strcmp(argv
[i
], "-ls") == 0) {
2100 } else if (strcmp(argv
[i
], "-batch") == 0) {
2101 console_batch_mode
= 1;
2102 } else if (strcmp(argv
[i
], "-unsafe") == 0) {
2103 scp_unsafe_mode
= 1;
2104 } else if (strcmp(argv
[i
], "--") == 0) {
2108 cmdline_error("unknown option \"%s\"", argv
[i
]);
2118 get_dir_list(argc
, argv
);
2125 targetshouldbedirectory
= 1;
2127 if (colon(argv
[argc
- 1]) != NULL
)
2128 toremote(argc
, argv
);
2130 tolocal(argc
, argv
);
2133 if (back
!= NULL
&& back
->socket(backhandle
) != NULL
) {
2135 back
->special(backhandle
, TS_EOF
);
2136 ssh_scp_recv(&ch
, 1);
2141 gui_send_errcount(list
, errs
);
2143 return (errs
== 0 ?
0 : 1);