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
31 static int verbose = 0;
32 static int recursive = 0;
33 static int preserve = 0;
34 static int targetshouldbedirectory = 0;
35 static int statistics = 1;
36 static int prev_stats_len = 0;
37 static int scp_unsafe_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 static void tell_str(FILE * stream, char *str)
79 for (i = 0; i < strlen(str); ++i)
80 tell_char(stream, str[i]);
83 static void tell_user(FILE * stream, char *fmt, ...)
88 str = dupvprintf(fmt, ap);
90 str2 = dupcat(str, "\n", NULL);
92 tell_str(stream, str2);
97 * Print an error message and perform a fatal exit.
99 void fatalbox(char *fmt, ...)
104 str = dupvprintf(fmt, ap);
105 str2 = dupcat("Fatal: ", str, "\n", NULL);
108 tell_str(stderr, str2);
114 void modalfatalbox(char *fmt, ...)
119 str = dupvprintf(fmt, ap);
120 str2 = dupcat("Fatal: ", str, "\n", NULL);
123 tell_str(stderr, str2);
129 void connection_fatal(void *frontend, char *fmt, ...)
134 str = dupvprintf(fmt, ap);
135 str2 = dupcat("Fatal: ", str, "\n", NULL);
138 tell_str(stderr, str2);
146 * In pscp, all agent requests should be synchronous, so this is a
149 void agent_schedule_callback(void (*callback)(void *, void *, int),
150 void *callback_ctx, void *data, int len)
152 assert(!"We shouldn't be here");
156 * Receive a block of data from the SSH link. Block until all data
159 * To do this, we repeatedly call the SSH protocol module, with our
160 * own trap in from_backend() to catch the data that comes back. We
161 * do this until we have enough data.
164 static unsigned char *outptr; /* where to put the data */
165 static unsigned outlen; /* how much data required */
166 static unsigned char *pending = NULL; /* any spare data */
167 static unsigned pendlen = 0, pendsize = 0; /* length and phys. size of buffer */
168 int from_backend(void *frontend, int is_stderr, const char *data, int datalen)
170 unsigned char *p = (unsigned char *) data;
171 unsigned len = (unsigned) datalen;
174 * stderr data is just spouted to local stderr and otherwise
179 fwrite(data, 1, len, stderr);
184 * If this is before the real session begins, just return.
189 if ((outlen > 0) && (len > 0)) {
190 unsigned used = outlen;
193 memcpy(outptr, p, used);
201 if (pendsize < pendlen + len) {
202 pendsize = pendlen + len + 4096;
203 pending = sresize(pending, pendsize, unsigned char);
205 memcpy(pending + pendlen, p, len);
211 int from_backend_untrusted(void *frontend_handle, const char *data, int len)
214 * No "untrusted" output should get here (the way the code is
215 * currently, it's all diverted by FLAG_STDERR).
217 assert(!"Unexpected call to from_backend_untrusted()");
218 return 0; /* not reached */
220 static int ssh_scp_recv(unsigned char *buf, int len)
226 * See if the pending-input block contains some of what we
230 unsigned pendused = pendlen;
231 if (pendused > outlen)
233 memcpy(outptr, pending, pendused);
234 memmove(pending, pending + pendused, pendlen - pendused);
248 if (ssh_sftp_loop_iteration() < 0)
256 * Loop through the ssh connection and authentication process.
258 static void ssh_scp_init(void)
260 while (!back->sendok(backhandle)) {
261 if (ssh_sftp_loop_iteration() < 0)
265 /* Work out which backend we ended up using. */
266 if (!ssh_fallback_cmd(backhandle))
267 using_sftp = main_cmd_is_sftp;
269 using_sftp = fallback_cmd_is_sftp;
273 tell_user(stderr, "Using SFTP");
275 tell_user(stderr, "Using SCP1");
280 * Print an error message and exit after closing the SSH link.
282 static void bump(char *fmt, ...)
287 str = dupvprintf(fmt, ap);
289 str2 = dupcat(str, "\n", NULL);
291 tell_str(stderr, str2);
295 if (back != NULL && back->socket(backhandle) != NULL) {
297 back->special(backhandle, TS_EOF);
298 ssh_scp_recv((unsigned char *) &ch, 1);
305 * Open an SSH connection to user@host and execute cmd.
307 static void do_cmd(char *host, char *user, char *cmd)
313 if (host == NULL || host[0] == '\0')
314 bump("Empty host name");
317 * Remove fiddly bits of address: remove a colon suffix, and
318 * the square brackets around an IPv6 literal address.
320 if (host[0] == '[') {
322 host[strcspn(host, "]")] = '\0';
324 host[strcspn(host, ":")] = '\0';
328 * If we haven't loaded session details already (e.g., from -load),
329 * try looking for a session called "host".
331 if (!loaded_session) {
332 /* Try to load settings for `host' into a temporary config */
335 do_defaults(host, &cfg2);
336 if (cfg2.host[0] != '\0') {
337 /* Settings present and include hostname */
338 /* Re-load data into the real config. */
339 do_defaults(host, &cfg);
341 /* Session doesn't exist or mention a hostname. */
342 /* Use `host' as a bare hostname. */
343 strncpy(cfg.host, host, sizeof(cfg.host) - 1);
344 cfg.host[sizeof(cfg.host) - 1] = '\0';
347 /* Patch in hostname `host' to session details. */
348 strncpy(cfg.host, host, sizeof(cfg.host) - 1);
349 cfg.host[sizeof(cfg.host) - 1] = '\0';
353 * Force use of SSH. (If they got the protocol wrong we assume the
354 * port is useless too.)
356 if (cfg.protocol != PROT_SSH) {
357 cfg.protocol = PROT_SSH;
362 * Enact command-line overrides.
364 cmdline_run_saved(&cfg);
367 * Trim leading whitespace off the hostname if it's there.
370 int space = strspn(cfg.host, " \t");
371 memmove(cfg.host, cfg.host+space, 1+strlen(cfg.host)-space);
374 /* See if host is of the form user@host */
375 if (cfg.host[0] != '\0') {
376 char *atsign = strrchr(cfg.host, '@');
377 /* Make sure we're not overflowing the user field */
379 if (atsign - cfg.host < sizeof cfg.username) {
380 strncpy(cfg.username, cfg.host, atsign - cfg.host);
381 cfg.username[atsign - cfg.host] = '\0';
383 memmove(cfg.host, atsign + 1, 1 + strlen(atsign + 1));
388 * Remove any remaining whitespace from the hostname.
392 while (cfg.host[p2] != '\0') {
393 if (cfg.host[p2] != ' ' && cfg.host[p2] != '\t') {
394 cfg.host[p1] = cfg.host[p2];
403 if (user != NULL && user[0] != '\0') {
404 strncpy(cfg.username, user, sizeof(cfg.username) - 1);
405 cfg.username[sizeof(cfg.username) - 1] = '\0';
406 } else if (cfg.username[0] == '\0') {
407 user = get_username();
409 bump("Empty user name");
412 tell_user(stderr, "Guessing user name: %s", user);
413 strncpy(cfg.username, user, sizeof(cfg.username) - 1);
414 cfg.username[sizeof(cfg.username) - 1] = '\0';
420 * Disable scary things which shouldn't be enabled for simple
421 * things like SCP and SFTP: agent forwarding, port forwarding,
426 cfg.portfwd[0] = cfg.portfwd[1] = '\0';
429 * Set up main and possibly fallback command depending on
430 * options specified by user.
431 * Attempt to start the SFTP subsystem as a first choice,
432 * falling back to the provided scp command if that fails.
434 cfg.remote_cmd_ptr2 = NULL;
436 /* First choice is SFTP subsystem. */
437 main_cmd_is_sftp = 1;
438 strcpy(cfg.remote_cmd, "sftp");
439 cfg.ssh_subsys = TRUE;
441 /* Fallback is to use the provided scp command. */
442 fallback_cmd_is_sftp = 0;
443 cfg.remote_cmd_ptr2 = cmd;
444 cfg.ssh_subsys2 = FALSE;
446 /* Since we're not going to try SCP, we may as well try
447 * harder to find an SFTP server, since in the current
448 * implementation we have a spare slot. */
449 fallback_cmd_is_sftp = 1;
450 /* see psftp.c for full explanation of this kludge */
451 cfg.remote_cmd_ptr2 =
452 "test -x /usr/lib/sftp-server && exec /usr/lib/sftp-server\n"
453 "test -x /usr/local/lib/sftp-server && exec /usr/local/lib/sftp-server\n"
455 cfg.ssh_subsys2 = FALSE;
458 /* Don't try SFTP at all; just try the scp command. */
459 main_cmd_is_sftp = 0;
460 cfg.remote_cmd_ptr = cmd;
461 cfg.ssh_subsys = FALSE;
467 err = back->init(NULL, &backhandle, &cfg, cfg.host, cfg.port, &realhost,
468 0, cfg.tcp_keepalives);
470 bump("ssh_init: %s", err);
471 logctx = log_init(NULL, &cfg);
472 back->provide_logctx(backhandle, logctx);
473 console_provide_logctx(logctx);
475 if (verbose && realhost != NULL)
476 tell_user(stderr, "Connected to %s\n", realhost);
481 * Update statistic information about current file.
483 static void print_stats(char *name, uint64 size, uint64 done,
484 time_t start, time_t now)
495 elap = (unsigned long) difftime(now, start);
498 ratebs = (float) (uint64_to_double(done) / elap);
500 ratebs = (float) uint64_to_double(done);
503 eta = (unsigned long) (uint64_to_double(uint64_subtract(size, done)));
505 eta = (unsigned long)
506 ((uint64_to_double(uint64_subtract(size, done)) / ratebs));
509 etastr = dupprintf("%02ld:%02ld:%02ld",
510 eta / 3600, (eta % 3600) / 60, eta % 60);
512 donedbl = uint64_to_double(done);
513 sizedbl = uint64_to_double(size);
514 pct = (int) (100 * (donedbl * 1.0 / sizedbl));
518 /* divide by 1024 to provide kB */
519 uint64_decimal(uint64_shift_right(done, 10), donekb);
520 len = printf("\r%-25.25s | %s kB | %5.1f kB/s | ETA: %8s | %3d%%",
522 donekb, ratebs / 1024.0, etastr, pct);
523 if (len < prev_stats_len)
524 printf("%*s", prev_stats_len - len, "");
525 prev_stats_len = len;
527 if (uint64_compare(done, size) == 0)
537 * Find a colon in str and return a pointer to the colon.
538 * This is used to separate hostname from filename.
540 static char *colon(char *str)
542 /* We ignore a leading colon, since the hostname cannot be
543 empty. We also ignore a colon as second character because
544 of filenames like f:myfile.txt. */
545 if (str[0] == '\0' || str[0] == ':' ||
546 (str[0] != '[' && str[1] == ':'))
548 while (*str != '\0' && *str != ':' && *str != '/' && *str != '\\') {
550 /* Skip over IPv6 literal addresses
551 * (eg: 'jeroen@[2001:db8::1]:myfile.txt') */
552 char *ipv6_end = strchr(str, ']');
566 * Return a pointer to the portion of str that comes after the last
567 * slash (or backslash or colon, if `local' is TRUE).
569 static char *stripslashes(char *str, int local)
574 p = strchr(str, ':');
578 p = strrchr(str, '/');
582 p = strrchr(str, '\\');
590 * Determine whether a string is entirely composed of dots.
592 static int is_dots(char *str)
594 return str[strspn(str, ".")] == '\0';
598 * Wait for a response from the other side.
599 * Return 0 if ok, -1 if error.
601 static int response(void)
603 char ch, resp, rbuf[2048];
606 if (ssh_scp_recv((unsigned char *) &resp, 1) <= 0)
607 bump("Lost connection");
617 case 2: /* fatal error */
619 if (ssh_scp_recv((unsigned char *) &ch, 1) <= 0)
620 bump("Protocol error: Lost connection");
622 } while (p < sizeof(rbuf) && ch != '\n');
625 tell_user(stderr, "%s\n", rbuf);
633 int sftp_recvdata(char *buf, int len)
635 return ssh_scp_recv((unsigned char *) buf, len);
637 int sftp_senddata(char *buf, int len)
639 back->send(backhandle, buf, len);
643 /* ----------------------------------------------------------------------
644 * sftp-based replacement for the hacky `pscp -ls'.
646 static int sftp_ls_compare(const void *av, const void *bv)
648 const struct fxp_name *a = (const struct fxp_name *) av;
649 const struct fxp_name *b = (const struct fxp_name *) bv;
650 return strcmp(a->filename, b->filename);
652 void scp_sftp_listdir(char *dirname)
654 struct fxp_handle *dirh;
655 struct fxp_names *names;
656 struct fxp_name *ournames;
657 struct sftp_packet *pktin;
658 struct sftp_request *req, *rreq;
659 int nnames, namesize;
663 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
668 printf("Listing directory %s\n", dirname);
670 sftp_register(req = fxp_opendir_send(dirname));
671 rreq = sftp_find_request(pktin = sftp_recv());
673 dirh = fxp_opendir_recv(pktin, rreq);
676 printf("Unable to open %s: %s\n", dirname, fxp_error());
678 nnames = namesize = 0;
683 sftp_register(req = fxp_readdir_send(dirh));
684 rreq = sftp_find_request(pktin = sftp_recv());
686 names = fxp_readdir_recv(pktin, rreq);
689 if (fxp_error_type() == SSH_FX_EOF)
691 printf("Reading directory %s: %s\n", dirname, fxp_error());
694 if (names->nnames == 0) {
695 fxp_free_names(names);
699 if (nnames + names->nnames >= namesize) {
700 namesize += names->nnames + 128;
701 ournames = sresize(ournames, namesize, struct fxp_name);
704 for (i = 0; i < names->nnames; i++)
705 ournames[nnames++] = names->names[i];
706 names->nnames = 0; /* prevent free_names */
707 fxp_free_names(names);
709 sftp_register(req = fxp_close_send(dirh));
710 rreq = sftp_find_request(pktin = sftp_recv());
712 fxp_close_recv(pktin, rreq);
715 * Now we have our filenames. Sort them by actual file
716 * name, and then output the longname parts.
718 qsort(ournames, nnames, sizeof(*ournames), sftp_ls_compare);
723 for (i = 0; i < nnames; i++)
724 printf("%s\n", ournames[i].longname);
728 /* ----------------------------------------------------------------------
729 * Helper routines that contain the actual SCP protocol elements,
730 * implemented both as SCP1 and SFTP.
733 static struct scp_sftp_dirstack {
734 struct scp_sftp_dirstack *next;
735 struct fxp_name *names;
736 int namepos, namelen;
739 int matched_something; /* wildcard match set was non-empty */
740 } *scp_sftp_dirstack_head;
741 static char *scp_sftp_remotepath, *scp_sftp_currentname;
742 static char *scp_sftp_wildcard;
743 static int scp_sftp_targetisdir, scp_sftp_donethistarget;
744 static int scp_sftp_preserve, scp_sftp_recursive;
745 static unsigned long scp_sftp_mtime, scp_sftp_atime;
746 static int scp_has_times;
747 static struct fxp_handle *scp_sftp_filehandle;
748 static struct fxp_xfer *scp_sftp_xfer;
749 static uint64 scp_sftp_fileoffset;
751 int scp_source_setup(char *target, int shouldbedir)
755 * Find out whether the target filespec is in fact a
758 struct sftp_packet *pktin;
759 struct sftp_request *req, *rreq;
760 struct fxp_attrs attrs;
764 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
769 sftp_register(req = fxp_stat_send(target));
770 rreq = sftp_find_request(pktin = sftp_recv());
772 ret = fxp_stat_recv(pktin, rreq, &attrs);
774 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS))
775 scp_sftp_targetisdir = 0;
777 scp_sftp_targetisdir = (attrs.permissions & 0040000) != 0;
779 if (shouldbedir && !scp_sftp_targetisdir) {
780 bump("pscp: remote filespec %s: not a directory\n", target);
783 scp_sftp_remotepath = dupstr(target);
792 int scp_send_errmsg(char *str)
795 /* do nothing; we never need to send our errors to the server */
797 back->send(backhandle, "\001", 1);/* scp protocol error prefix */
798 back->send(backhandle, str, strlen(str));
800 return 0; /* can't fail */
803 int scp_send_filetimes(unsigned long mtime, unsigned long atime)
806 scp_sftp_mtime = mtime;
807 scp_sftp_atime = atime;
812 sprintf(buf, "T%lu 0 %lu 0\n", mtime, atime);
813 back->send(backhandle, buf, strlen(buf));
818 int scp_send_filename(char *name, uint64 size, int modes)
822 struct sftp_packet *pktin;
823 struct sftp_request *req, *rreq;
825 if (scp_sftp_targetisdir) {
826 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
828 fullname = dupstr(scp_sftp_remotepath);
831 sftp_register(req = fxp_open_send(fullname, SSH_FXF_WRITE |
832 SSH_FXF_CREAT | SSH_FXF_TRUNC));
833 rreq = sftp_find_request(pktin = sftp_recv());
835 scp_sftp_filehandle = fxp_open_recv(pktin, rreq);
837 if (!scp_sftp_filehandle) {
838 tell_user(stderr, "pscp: unable to open %s: %s",
839 fullname, fxp_error());
843 scp_sftp_fileoffset = uint64_make(0, 0);
844 scp_sftp_xfer = xfer_upload_init(scp_sftp_filehandle,
845 scp_sftp_fileoffset);
851 uint64_decimal(size, sizestr);
852 sprintf(buf, "C%04o %s ", modes, sizestr);
853 back->send(backhandle, buf, strlen(buf));
854 back->send(backhandle, name, strlen(name));
855 back->send(backhandle, "\n", 1);
860 int scp_send_filedata(char *data, int len)
864 struct sftp_packet *pktin;
866 if (!scp_sftp_filehandle) {
870 while (!xfer_upload_ready(scp_sftp_xfer)) {
872 ret = xfer_upload_gotpkt(scp_sftp_xfer, pktin);
874 tell_user(stderr, "error while writing: %s\n", fxp_error());
880 xfer_upload_data(scp_sftp_xfer, data, len);
882 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, len);
885 int bufsize = back->send(backhandle, data, len);
888 * If the network transfer is backing up - that is, the
889 * remote site is not accepting data as fast as we can
890 * produce it - then we must loop on network events until
891 * we have space in the buffer again.
893 while (bufsize > MAX_SCP_BUFSIZE) {
894 if (ssh_sftp_loop_iteration() < 0)
896 bufsize = back->sendbuffer(backhandle);
903 int scp_send_finish(void)
906 struct fxp_attrs attrs;
907 struct sftp_packet *pktin;
908 struct sftp_request *req, *rreq;
911 while (!xfer_done(scp_sftp_xfer)) {
913 xfer_upload_gotpkt(scp_sftp_xfer, pktin);
915 xfer_cleanup(scp_sftp_xfer);
917 if (!scp_sftp_filehandle) {
921 attrs.flags = SSH_FILEXFER_ATTR_ACMODTIME;
922 attrs.atime = scp_sftp_atime;
923 attrs.mtime = scp_sftp_mtime;
924 sftp_register(req = fxp_fsetstat_send(scp_sftp_filehandle, attrs));
925 rreq = sftp_find_request(pktin = sftp_recv());
927 ret = fxp_fsetstat_recv(pktin, rreq);
929 tell_user(stderr, "unable to set file times: %s\n", fxp_error());
933 sftp_register(req = fxp_close_send(scp_sftp_filehandle));
934 rreq = sftp_find_request(pktin = sftp_recv());
936 fxp_close_recv(pktin, rreq);
940 back->send(backhandle, "", 1);
945 char *scp_save_remotepath(void)
948 return scp_sftp_remotepath;
953 void scp_restore_remotepath(char *data)
956 scp_sftp_remotepath = data;
959 int scp_send_dirname(char *name, int modes)
964 struct fxp_attrs attrs;
965 struct sftp_packet *pktin;
966 struct sftp_request *req, *rreq;
969 if (scp_sftp_targetisdir) {
970 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
972 fullname = dupstr(scp_sftp_remotepath);
976 * We don't worry about whether we managed to create the
977 * directory, because if it exists already it's OK just to
978 * use it. Instead, we will stat it afterwards, and if it
979 * exists and is a directory we will assume we were either
980 * successful or it didn't matter.
982 sftp_register(req = fxp_mkdir_send(fullname));
983 rreq = sftp_find_request(pktin = sftp_recv());
985 ret = fxp_mkdir_recv(pktin, rreq);
990 err = "server reported no error";
992 sftp_register(req = fxp_stat_send(fullname));
993 rreq = sftp_find_request(pktin = sftp_recv());
995 ret = fxp_stat_recv(pktin, rreq, &attrs);
997 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) ||
998 !(attrs.permissions & 0040000)) {
999 tell_user(stderr, "unable to create directory %s: %s",
1005 scp_sftp_remotepath = fullname;
1010 sprintf(buf, "D%04o 0 ", modes);
1011 back->send(backhandle, buf, strlen(buf));
1012 back->send(backhandle, name, strlen(name));
1013 back->send(backhandle, "\n", 1);
1018 int scp_send_enddir(void)
1021 sfree(scp_sftp_remotepath);
1024 back->send(backhandle, "E\n", 2);
1030 * Yes, I know; I have an scp_sink_setup _and_ an scp_sink_init.
1031 * That's bad. The difference is that scp_sink_setup is called once
1032 * right at the start, whereas scp_sink_init is called to
1033 * initialise every level of recursion in the protocol.
1035 int scp_sink_setup(char *source, int preserve, int recursive)
1041 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
1046 * It's possible that the source string we've been given
1047 * contains a wildcard. If so, we must split the directory
1048 * away from the wildcard itself (throwing an error if any
1049 * wildcardness comes before the final slash) and arrange
1050 * things so that a dirstack entry will be set up.
1052 newsource = snewn(1+strlen(source), char);
1053 if (!wc_unescape(newsource, source)) {
1054 /* Yes, here we go; it's a wildcard. Bah. */
1055 char *dupsource, *lastpart, *dirpart, *wildcard;
1056 dupsource = dupstr(source);
1057 lastpart = stripslashes(dupsource, 0);
1058 wildcard = dupstr(lastpart);
1060 if (*dupsource && dupsource[1]) {
1062 * The remains of dupsource are at least two
1063 * characters long, meaning the pathname wasn't
1064 * empty or just `/'. Hence, we remove the trailing
1067 lastpart[-1] = '\0';
1068 } else if (!*dupsource) {
1070 * The remains of dupsource are _empty_ - the whole
1071 * pathname was a wildcard. Hence we need to
1072 * replace it with ".".
1075 dupsource = dupstr(".");
1079 * Now we have separated our string into dupsource (the
1080 * directory part) and wildcard. Both of these will
1081 * need freeing at some point. Next step is to remove
1082 * wildcard escapes from the directory part, throwing
1083 * an error if it contains a real wildcard.
1085 dirpart = snewn(1+strlen(dupsource), char);
1086 if (!wc_unescape(dirpart, dupsource)) {
1087 tell_user(stderr, "%s: multiple-level wildcards unsupported",
1097 * Now we have dirpart (unescaped, ie a valid remote
1098 * path), and wildcard (a wildcard). This will be
1099 * sufficient to arrange a dirstack entry.
1101 scp_sftp_remotepath = dirpart;
1102 scp_sftp_wildcard = wildcard;
1105 scp_sftp_remotepath = newsource;
1106 scp_sftp_wildcard = NULL;
1108 scp_sftp_preserve = preserve;
1109 scp_sftp_recursive = recursive;
1110 scp_sftp_donethistarget = 0;
1111 scp_sftp_dirstack_head = NULL;
1116 int scp_sink_init(void)
1119 back->send(backhandle, "", 1);
1124 #define SCP_SINK_FILE 1
1125 #define SCP_SINK_DIR 2
1126 #define SCP_SINK_ENDDIR 3
1127 #define SCP_SINK_RETRY 4 /* not an action; just try again */
1128 struct scp_sink_action {
1129 int action; /* FILE, DIR, ENDDIR */
1130 char *buf; /* will need freeing after use */
1131 char *name; /* filename or dirname (not ENDDIR) */
1132 int mode; /* access mode (not ENDDIR) */
1133 uint64 size; /* file size (not ENDDIR) */
1134 int settime; /* 1 if atime and mtime are filled */
1135 unsigned long atime, mtime; /* access times for the file */
1138 int scp_get_sink_action(struct scp_sink_action *act)
1142 int must_free_fname;
1143 struct fxp_attrs attrs;
1144 struct sftp_packet *pktin;
1145 struct sftp_request *req, *rreq;
1148 if (!scp_sftp_dirstack_head) {
1149 if (!scp_sftp_donethistarget) {
1151 * Simple case: we are only dealing with one file.
1153 fname = scp_sftp_remotepath;
1154 must_free_fname = 0;
1155 scp_sftp_donethistarget = 1;
1158 * Even simpler case: one file _which we've done_.
1159 * Return 1 (finished).
1165 * We're now in the middle of stepping through a list
1166 * of names returned from fxp_readdir(); so let's carry
1169 struct scp_sftp_dirstack *head = scp_sftp_dirstack_head;
1170 while (head->namepos < head->namelen &&
1171 (is_dots(head->names[head->namepos].filename) ||
1173 !wc_match(head->wildcard,
1174 head->names[head->namepos].filename))))
1175 head->namepos++; /* skip . and .. */
1176 if (head->namepos < head->namelen) {
1177 head->matched_something = 1;
1178 fname = dupcat(head->dirpath, "/",
1179 head->names[head->namepos++].filename,
1181 must_free_fname = 1;
1184 * We've come to the end of the list; pop it off
1185 * the stack and return an ENDDIR action (or RETRY
1186 * if this was a wildcard match).
1188 if (head->wildcard) {
1189 act->action = SCP_SINK_RETRY;
1190 if (!head->matched_something) {
1191 tell_user(stderr, "pscp: wildcard '%s' matched "
1192 "no files", head->wildcard);
1195 sfree(head->wildcard);
1198 act->action = SCP_SINK_ENDDIR;
1201 sfree(head->dirpath);
1203 scp_sftp_dirstack_head = head->next;
1211 * Now we have a filename. Stat it, and see if it's a file
1214 sftp_register(req = fxp_stat_send(fname));
1215 rreq = sftp_find_request(pktin = sftp_recv());
1216 assert(rreq == req);
1217 ret = fxp_stat_recv(pktin, rreq, &attrs);
1219 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS)) {
1220 tell_user(stderr, "unable to identify %s: %s", fname,
1221 ret ? "file type not supplied" : fxp_error());
1226 if (attrs.permissions & 0040000) {
1227 struct scp_sftp_dirstack *newitem;
1228 struct fxp_handle *dirhandle;
1229 int nnames, namesize;
1230 struct fxp_name *ournames;
1231 struct fxp_names *names;
1234 * It's a directory. If we're not in recursive mode,
1235 * this merits a complaint (which is fatal if the name
1236 * was specified directly, but not if it was matched by
1239 * We skip this complaint completely if
1240 * scp_sftp_wildcard is set, because that's an
1241 * indication that we're not actually supposed to
1242 * _recursively_ transfer the dir, just scan it for
1243 * things matching the wildcard.
1245 if (!scp_sftp_recursive && !scp_sftp_wildcard) {
1246 tell_user(stderr, "pscp: %s: is a directory", fname);
1248 if (must_free_fname) sfree(fname);
1249 if (scp_sftp_dirstack_head) {
1250 act->action = SCP_SINK_RETRY;
1258 * Otherwise, the fun begins. We must fxp_opendir() the
1259 * directory, slurp the filenames into memory, return
1260 * SCP_SINK_DIR (unless this is a wildcard match), and
1261 * set targetisdir. The next time we're called, we will
1262 * run through the list of filenames one by one,
1263 * matching them against a wildcard if present.
1265 * If targetisdir is _already_ set (meaning we're
1266 * already in the middle of going through another such
1267 * list), we must push the other (target,namelist) pair
1270 sftp_register(req = fxp_opendir_send(fname));
1271 rreq = sftp_find_request(pktin = sftp_recv());
1272 assert(rreq == req);
1273 dirhandle = fxp_opendir_recv(pktin, rreq);
1276 tell_user(stderr, "scp: unable to open directory %s: %s",
1277 fname, fxp_error());
1278 if (must_free_fname) sfree(fname);
1282 nnames = namesize = 0;
1287 sftp_register(req = fxp_readdir_send(dirhandle));
1288 rreq = sftp_find_request(pktin = sftp_recv());
1289 assert(rreq == req);
1290 names = fxp_readdir_recv(pktin, rreq);
1292 if (names == NULL) {
1293 if (fxp_error_type() == SSH_FX_EOF)
1295 tell_user(stderr, "scp: reading directory %s: %s\n",
1296 fname, fxp_error());
1297 if (must_free_fname) sfree(fname);
1302 if (names->nnames == 0) {
1303 fxp_free_names(names);
1306 if (nnames + names->nnames >= namesize) {
1307 namesize += names->nnames + 128;
1308 ournames = sresize(ournames, namesize, struct fxp_name);
1310 for (i = 0; i < names->nnames; i++) {
1311 if (!strcmp(names->names[i].filename, ".") ||
1312 !strcmp(names->names[i].filename, "..")) {
1314 * . and .. are normal consequences of
1315 * reading a directory, and aren't worth
1316 * complaining about.
1318 } else if (!vet_filename(names->names[i].filename)) {
1319 tell_user(stderr, "ignoring potentially dangerous server-"
1320 "supplied filename '%s'\n",
1321 names->names[i].filename);
1323 ournames[nnames++] = names->names[i];
1325 names->nnames = 0; /* prevent free_names */
1326 fxp_free_names(names);
1328 sftp_register(req = fxp_close_send(dirhandle));
1329 rreq = sftp_find_request(pktin = sftp_recv());
1330 assert(rreq == req);
1331 fxp_close_recv(pktin, rreq);
1333 newitem = snew(struct scp_sftp_dirstack);
1334 newitem->next = scp_sftp_dirstack_head;
1335 newitem->names = ournames;
1336 newitem->namepos = 0;
1337 newitem->namelen = nnames;
1338 if (must_free_fname)
1339 newitem->dirpath = fname;
1341 newitem->dirpath = dupstr(fname);
1342 if (scp_sftp_wildcard) {
1343 newitem->wildcard = scp_sftp_wildcard;
1344 newitem->matched_something = 0;
1345 scp_sftp_wildcard = NULL;
1347 newitem->wildcard = NULL;
1349 scp_sftp_dirstack_head = newitem;
1351 if (newitem->wildcard) {
1352 act->action = SCP_SINK_RETRY;
1354 act->action = SCP_SINK_DIR;
1355 act->buf = dupstr(stripslashes(fname, 0));
1356 act->name = act->buf;
1357 act->size = uint64_make(0,0); /* duhh, it's a directory */
1358 act->mode = 07777 & attrs.permissions;
1359 if (scp_sftp_preserve &&
1360 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1361 act->atime = attrs.atime;
1362 act->mtime = attrs.mtime;
1371 * It's a file. Return SCP_SINK_FILE.
1373 act->action = SCP_SINK_FILE;
1374 act->buf = dupstr(stripslashes(fname, 0));
1375 act->name = act->buf;
1376 if (attrs.flags & SSH_FILEXFER_ATTR_SIZE) {
1377 act->size = attrs.size;
1379 act->size = uint64_make(ULONG_MAX,ULONG_MAX); /* no idea */
1380 act->mode = 07777 & attrs.permissions;
1381 if (scp_sftp_preserve &&
1382 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1383 act->atime = attrs.atime;
1384 act->mtime = attrs.mtime;
1388 if (must_free_fname)
1389 scp_sftp_currentname = fname;
1391 scp_sftp_currentname = dupstr(fname);
1406 if (ssh_scp_recv((unsigned char *) &ch, 1) <= 0)
1409 bump("Protocol error: Unexpected newline");
1413 if (ssh_scp_recv((unsigned char *) &ch, 1) <= 0)
1414 bump("Lost connection");
1417 act->buf = sresize(act->buf, bufsize, char);
1420 } while (ch != '\n');
1421 act->buf[i - 1] = '\0';
1423 case '\01': /* error */
1424 tell_user(stderr, "%s\n", act->buf);
1426 continue; /* go round again */
1427 case '\02': /* fatal error */
1428 bump("%s", act->buf);
1430 back->send(backhandle, "", 1);
1431 act->action = SCP_SINK_ENDDIR;
1434 if (sscanf(act->buf, "%ld %*d %ld %*d",
1435 &act->mtime, &act->atime) == 2) {
1437 back->send(backhandle, "", 1);
1438 continue; /* go round again */
1440 bump("Protocol error: Illegal time format");
1443 act->action = (action == 'C' ? SCP_SINK_FILE : SCP_SINK_DIR);
1446 bump("Protocol error: Expected control record");
1449 * We will go round this loop only once, unless we hit
1456 * If we get here, we must have seen SCP_SINK_FILE or
1462 if (sscanf(act->buf, "%o %s %n", &act->mode, sizestr, &i) != 2)
1463 bump("Protocol error: Illegal file descriptor format");
1464 act->size = uint64_from_decimal(sizestr);
1465 act->name = act->buf + i;
1471 int scp_accept_filexfer(void)
1474 struct sftp_packet *pktin;
1475 struct sftp_request *req, *rreq;
1477 sftp_register(req = fxp_open_send(scp_sftp_currentname, SSH_FXF_READ));
1478 rreq = sftp_find_request(pktin = sftp_recv());
1479 assert(rreq == req);
1480 scp_sftp_filehandle = fxp_open_recv(pktin, rreq);
1482 if (!scp_sftp_filehandle) {
1483 tell_user(stderr, "pscp: unable to open %s: %s",
1484 scp_sftp_currentname, fxp_error());
1488 scp_sftp_fileoffset = uint64_make(0, 0);
1489 scp_sftp_xfer = xfer_download_init(scp_sftp_filehandle,
1490 scp_sftp_fileoffset);
1491 sfree(scp_sftp_currentname);
1494 back->send(backhandle, "", 1);
1495 return 0; /* can't fail */
1499 int scp_recv_filedata(char *data, int len)
1502 struct sftp_packet *pktin;
1506 xfer_download_queue(scp_sftp_xfer);
1507 pktin = sftp_recv();
1508 ret = xfer_download_gotpkt(scp_sftp_xfer, pktin);
1511 tell_user(stderr, "pscp: error while reading: %s", fxp_error());
1516 if (xfer_download_data(scp_sftp_xfer, &vbuf, &actuallen)) {
1518 * This assertion relies on the fact that the natural
1519 * block size used in the xfer manager is at most that
1520 * used in this module. I don't like crossing layers in
1521 * this way, but it'll do for now.
1523 assert(actuallen <= len);
1524 memcpy(data, vbuf, actuallen);
1529 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, actuallen);
1533 return ssh_scp_recv((unsigned char *) data, len);
1537 int scp_finish_filerecv(void)
1540 struct sftp_packet *pktin;
1541 struct sftp_request *req, *rreq;
1544 * Ensure that xfer_done() will work correctly, so we can
1545 * clean up any outstanding requests from the file
1548 xfer_set_error(scp_sftp_xfer);
1549 while (!xfer_done(scp_sftp_xfer)) {
1553 pktin = sftp_recv();
1554 xfer_download_gotpkt(scp_sftp_xfer, pktin);
1555 if (xfer_download_data(scp_sftp_xfer, &vbuf, &len))
1558 xfer_cleanup(scp_sftp_xfer);
1560 sftp_register(req = fxp_close_send(scp_sftp_filehandle));
1561 rreq = sftp_find_request(pktin = sftp_recv());
1562 assert(rreq == req);
1563 fxp_close_recv(pktin, rreq);
1566 back->send(backhandle, "", 1);
1571 /* ----------------------------------------------------------------------
1572 * Send an error message to the other side and to the screen.
1573 * Increment error counter.
1575 static void run_err(const char *fmt, ...)
1581 str = dupvprintf(fmt, ap);
1582 str2 = dupcat("scp: ", str, "\n", NULL);
1584 scp_send_errmsg(str2);
1585 tell_user(stderr, "%s", str2);
1591 * Execute the source part of the SCP protocol.
1593 static void source(char *src)
1596 unsigned long mtime, atime;
1602 time_t stat_starttime, stat_lasttime;
1604 attr = file_type(src);
1605 if (attr == FILE_TYPE_NONEXISTENT ||
1606 attr == FILE_TYPE_WEIRD) {
1607 run_err("%s: %s file or directory", src,
1608 (attr == FILE_TYPE_WEIRD ? "Not a" : "No such"));
1612 if (attr == FILE_TYPE_DIRECTORY) {
1615 * Avoid . and .. directories.
1618 p = strrchr(src, '/');
1620 p = strrchr(src, '\\');
1625 if (!strcmp(p, ".") || !strcmp(p, ".."))
1626 /* skip . and .. */ ;
1630 run_err("%s: not a regular file", src);
1635 if ((last = strrchr(src, '/')) == NULL)
1639 if (strrchr(last, '\\') != NULL)
1640 last = strrchr(last, '\\') + 1;
1641 if (last == src && strchr(src, ':') != NULL)
1642 last = strchr(src, ':') + 1;
1644 f = open_existing_file(src, &size, &mtime, &atime);
1646 run_err("%s: Cannot open file", src);
1650 if (scp_send_filetimes(mtime, atime))
1656 uint64_decimal(size, sizestr);
1657 tell_user(stderr, "Sending file %s, size=%s", last, sizestr);
1659 if (scp_send_filename(last, size, 0644))
1662 stat_bytes = uint64_make(0,0);
1663 stat_starttime = time(NULL);
1666 for (i = uint64_make(0,0);
1667 uint64_compare(i,size) < 0;
1668 i = uint64_add32(i,4096)) {
1669 char transbuf[4096];
1672 if (uint64_compare(uint64_add32(i, k),size) > 0) /* i + k > size */
1673 k = (uint64_subtract(size, i)).lo; /* k = size - i; */
1674 if ((j = read_from_file(f, transbuf, k)) != k) {
1677 bump("%s: Read error", src);
1679 if (scp_send_filedata(transbuf, k))
1680 bump("%s: Network error occurred", src);
1683 stat_bytes = uint64_add32(stat_bytes, k);
1684 if (time(NULL) != stat_lasttime ||
1685 (uint64_compare(uint64_add32(i, k), size) == 0)) {
1686 stat_lasttime = time(NULL);
1687 print_stats(last, size, stat_bytes,
1688 stat_starttime, stat_lasttime);
1695 (void) scp_send_finish();
1699 * Recursively send the contents of a directory.
1701 static void rsource(char *src)
1707 if ((last = strrchr(src, '/')) == NULL)
1711 if (strrchr(last, '\\') != NULL)
1712 last = strrchr(last, '\\') + 1;
1713 if (last == src && strchr(src, ':') != NULL)
1714 last = strchr(src, ':') + 1;
1716 /* maybe send filetime */
1718 save_target = scp_save_remotepath();
1721 tell_user(stderr, "Entering directory: %s", last);
1722 if (scp_send_dirname(last, 0755))
1725 dir = open_directory(src);
1728 while ((filename = read_filename(dir)) != NULL) {
1729 char *foundfile = dupcat(src, "/", filename, NULL);
1735 close_directory(dir);
1737 (void) scp_send_enddir();
1739 scp_restore_remotepath(save_target);
1743 * Execute the sink part of the SCP protocol.
1745 static void sink(char *targ, char *src)
1755 time_t stat_starttime, stat_lasttime;
1758 attr = file_type(targ);
1759 if (attr == FILE_TYPE_DIRECTORY)
1762 if (targetshouldbedirectory && !targisdir)
1763 bump("%s: Not a directory", targ);
1767 struct scp_sink_action act;
1768 if (scp_get_sink_action(&act))
1771 if (act.action == SCP_SINK_ENDDIR)
1774 if (act.action == SCP_SINK_RETRY)
1779 * Prevent the remote side from maliciously writing to
1780 * files outside the target area by sending a filename
1781 * containing `../'. In fact, it shouldn't be sending
1782 * filenames with any slashes or colons in at all; so
1783 * we'll find the last slash, backslash or colon in the
1784 * filename and use only the part after that. (And
1787 * In addition, we also ensure here that if we're
1788 * copying a single file and the target is a directory
1789 * (common usage: `pscp host:filename .') the remote
1790 * can't send us a _different_ file name. We can
1791 * distinguish this case because `src' will be non-NULL
1792 * and the last component of that will fail to match
1793 * (the last component of) the name sent.
1795 * Well, not always; if `src' is a wildcard, we do
1796 * expect to get back filenames that don't correspond
1797 * exactly to it. Ideally in this case, we would like
1798 * to ensure that the returned filename actually
1799 * matches the wildcard pattern - but one of SCP's
1800 * protocol infelicities is that wildcard matching is
1801 * done at the server end _by the server's rules_ and
1802 * so in general this is infeasible. Hence, we only
1803 * accept filenames that don't correspond to `src' if
1804 * unsafe mode is enabled or we are using SFTP (which
1805 * resolves remote wildcards on the client side and can
1808 char *striptarget, *stripsrc;
1810 striptarget = stripslashes(act.name, 1);
1811 if (striptarget != act.name) {
1812 tell_user(stderr, "warning: remote host sent a compound"
1813 " pathname '%s'", act.name);
1814 tell_user(stderr, " renaming local file to '%s'",
1819 * Also check to see if the target filename is '.' or
1820 * '..', or indeed '...' and so on because Windows
1821 * appears to interpret those like '..'.
1823 if (is_dots(striptarget)) {
1824 bump("security violation: remote host attempted to write to"
1825 " a '.' or '..' path!");
1829 stripsrc = stripslashes(src, 1);
1830 if (strcmp(striptarget, stripsrc) &&
1831 !using_sftp && !scp_unsafe_mode) {
1832 tell_user(stderr, "warning: remote host tried to write "
1833 "to a file called '%s'", striptarget);
1834 tell_user(stderr, " when we requested a file "
1835 "called '%s'.", stripsrc);
1836 tell_user(stderr, " If this is a wildcard, "
1837 "consider upgrading to SSH-2 or using");
1838 tell_user(stderr, " the '-unsafe' option. Renaming"
1839 " of this file has been disallowed.");
1840 /* Override the name the server provided with our own. */
1841 striptarget = stripsrc;
1845 if (targ[0] != '\0')
1846 destfname = dir_file_cat(targ, striptarget);
1848 destfname = dupstr(striptarget);
1851 * In this branch of the if, the target area is a
1852 * single file with an explicitly specified name in any
1853 * case, so there's no danger.
1855 destfname = dupstr(targ);
1857 attr = file_type(destfname);
1858 exists = (attr != FILE_TYPE_NONEXISTENT);
1860 if (act.action == SCP_SINK_DIR) {
1861 if (exists && attr != FILE_TYPE_DIRECTORY) {
1862 run_err("%s: Not a directory", destfname);
1866 if (!create_directory(destfname)) {
1867 run_err("%s: Cannot create directory", destfname);
1871 sink(destfname, NULL);
1872 /* can we set the timestamp for directories ? */
1876 f = open_new_file(destfname);
1878 run_err("%s: Cannot create file", destfname);
1882 if (scp_accept_filexfer())
1885 stat_bytes = uint64_make(0, 0);
1886 stat_starttime = time(NULL);
1888 stat_name = stripslashes(destfname, 1);
1890 received = uint64_make(0, 0);
1891 while (uint64_compare(received,act.size) < 0) {
1892 char transbuf[32768];
1895 blksize = uint64_make(0, 32768);
1896 if (uint64_compare(blksize,uint64_subtract(act.size,received)) > 0)
1897 blksize = uint64_subtract(act.size,received);
1898 read = scp_recv_filedata(transbuf, (int)blksize.lo);
1900 bump("Lost connection");
1903 if (write_to_file(f, transbuf, read) != (int)read) {
1905 /* FIXME: in sftp we can actually abort the transfer */
1907 printf("\r%-25.25s | %50s\n",
1909 "Write error.. waiting for end of file");
1913 stat_bytes = uint64_add32(stat_bytes,read);
1914 if (time(NULL) > stat_lasttime ||
1915 uint64_compare(uint64_add32(received, read), act.size) == 0) {
1916 stat_lasttime = time(NULL);
1917 print_stats(stat_name, act.size, stat_bytes,
1918 stat_starttime, stat_lasttime);
1921 received = uint64_add32(received, read);
1924 set_file_times(f, act.mtime, act.atime);
1929 run_err("%s: Write error", destfname);
1932 (void) scp_finish_filerecv();
1939 * We will copy local files to a remote server.
1941 static void toremote(int argc, char *argv[])
1943 char *src, *targ, *host, *user;
1947 targ = argv[argc - 1];
1949 /* Separate host from filename */
1953 bump("targ == NULL in toremote()");
1957 /* Substitute "." for empty target */
1959 /* Separate host and username */
1961 host = strrchr(host, '@');
1972 if (colon(argv[0]) != NULL)
1973 bump("%s: Remote to remote not supported", argv[0]);
1975 wc_type = test_wildcard(argv[0], 1);
1976 if (wc_type == WCTYPE_NONEXISTENT)
1977 bump("%s: No such file or directory\n", argv[0]);
1978 else if (wc_type == WCTYPE_WILDCARD)
1979 targetshouldbedirectory = 1;
1982 cmd = dupprintf("scp%s%s%s%s -t %s",
1983 verbose ? " -v" : "",
1984 recursive ? " -r" : "",
1985 preserve ? " -p" : "",
1986 targetshouldbedirectory ? " -d" : "", targ);
1987 do_cmd(host, user, cmd);
1990 if (scp_source_setup(targ, targetshouldbedirectory))
1993 for (i = 0; i < argc - 1; i++) {
1995 if (colon(src) != NULL) {
1996 tell_user(stderr, "%s: Remote to remote not supported\n", src);
2001 wc_type = test_wildcard(src, 1);
2002 if (wc_type == WCTYPE_NONEXISTENT) {
2003 run_err("%s: No such file or directory", src);
2005 } else if (wc_type == WCTYPE_FILENAME) {
2009 WildcardMatcher *wc;
2012 wc = begin_wildcard_matching(src);
2014 run_err("%s: No such file or directory", src);
2018 while ((filename = wildcard_get_filename(wc)) != NULL) {
2023 finish_wildcard_matching(wc);
2029 * We will copy files from a remote server to the local machine.
2031 static void tolocal(int argc, char *argv[])
2033 char *src, *targ, *host, *user;
2037 bump("More than one remote source not supported");
2042 /* Separate host from filename */
2046 bump("Local to local copy not supported");
2050 /* Substitute "." for empty filename */
2052 /* Separate username and hostname */
2054 host = strrchr(host, '@');
2064 cmd = dupprintf("scp%s%s%s%s -f %s",
2065 verbose ? " -v" : "",
2066 recursive ? " -r" : "",
2067 preserve ? " -p" : "",
2068 targetshouldbedirectory ? " -d" : "", src);
2069 do_cmd(host, user, cmd);
2072 if (scp_sink_setup(src, preserve, recursive))
2079 * We will issue a list command to get a remote directory.
2081 static void get_dir_list(int argc, char *argv[])
2083 char *src, *host, *user;
2089 /* Separate host from filename */
2093 bump("Local to local copy not supported");
2097 /* Substitute "." for empty filename */
2099 /* Separate username and hostname */
2101 host = strrchr(host, '@');
2111 cmd = snewn(4 * strlen(src) + 100, char);
2112 strcpy(cmd, "ls -la '");
2113 p = cmd + strlen(cmd);
2114 for (q = src; *q; q++) {
2127 do_cmd(host, user, cmd);
2131 scp_sftp_listdir(src);
2133 while (ssh_scp_recv((unsigned char *) &c, 1) > 0)
2134 tell_char(stdout, c);
2139 * Short description of parameters.
2141 static void usage(void)
2143 printf("PuTTY Secure Copy client\n");
2144 printf("%s\n", ver);
2145 printf("Usage: pscp [options] [user@]host:source target\n");
2147 (" pscp [options] source [source...] [user@]host:target\n");
2148 printf(" pscp [options] -ls [user@]host:filespec\n");
2149 printf("Options:\n");
2150 printf(" -V print version information and exit\n");
2151 printf(" -pgpfp print PGP key fingerprints and exit\n");
2152 printf(" -p preserve file attributes\n");
2153 printf(" -q quiet, don't show statistics\n");
2154 printf(" -r copy directories recursively\n");
2155 printf(" -v show verbose messages\n");
2156 printf(" -load sessname Load settings from saved session\n");
2157 printf(" -P port connect to specified port\n");
2158 printf(" -l user connect with specified username\n");
2159 printf(" -pw passw login with specified password\n");
2160 printf(" -1 -2 force use of particular SSH protocol version\n");
2161 printf(" -4 -6 force use of IPv4 or IPv6\n");
2162 printf(" -C enable compression\n");
2163 printf(" -i key private key file for authentication\n");
2164 printf(" -noagent disable use of Pageant\n");
2165 printf(" -agent enable use of Pageant\n");
2166 printf(" -batch disable all interactive prompts\n");
2167 printf(" -unsafe allow server-side wildcards (DANGEROUS)\n");
2168 printf(" -sftp force use of SFTP protocol\n");
2169 printf(" -scp force use of SCP protocol\n");
2172 * -gui is an internal option, used by GUI front ends to get
2173 * pscp to pass progress reports back to them. It's not an
2174 * ordinary user-accessible option, so it shouldn't be part of
2175 * the command-line help. The only people who need to know
2176 * about it are programmers, and they can read the source.
2179 (" -gui hWnd GUI mode with the windows handle for receiving messages\n");
2186 printf("pscp: %s\n", ver);
2190 void cmdline_error(char *p, ...)
2193 fprintf(stderr, "pscp: ");
2195 vfprintf(stderr, p, ap);
2197 fprintf(stderr, "\n try typing just \"pscp\" for help\n");
2202 * Main program. (Called `psftp_main' because it gets called from
2203 * *sftp.c; bit silly, I know, but it had to be called _something_.)
2205 int psftp_main(int argc, char *argv[])
2209 default_protocol = PROT_TELNET;
2212 #ifdef FLAG_SYNCAGENT
2216 cmdline_tooltype = TOOLTYPE_FILETRANSFER;
2219 /* Load Default Settings before doing anything else. */
2220 do_defaults(NULL, &cfg);
2221 loaded_session = FALSE;
2223 for (i = 1; i < argc; i++) {
2225 if (argv[i][0] != '-')
2227 ret = cmdline_process_param(argv[i], i+1<argc?argv[i+1]:NULL, 1, &cfg);
2229 cmdline_error("option \"%s\" requires an argument", argv[i]);
2230 } else if (ret == 2) {
2231 i++; /* skip next argument */
2232 } else if (ret == 1) {
2233 /* We have our own verbosity in addition to `flags'. */
2234 if (flags & FLAG_VERBOSE)
2236 } else if (strcmp(argv[i], "-pgpfp") == 0) {
2239 } else if (strcmp(argv[i], "-r") == 0) {
2241 } else if (strcmp(argv[i], "-p") == 0) {
2243 } else if (strcmp(argv[i], "-q") == 0) {
2245 } else if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "-?") == 0) {
2247 } else if (strcmp(argv[i], "-V") == 0) {
2249 } else if (strcmp(argv[i], "-ls") == 0) {
2251 } else if (strcmp(argv[i], "-batch") == 0) {
2252 console_batch_mode = 1;
2253 } else if (strcmp(argv[i], "-unsafe") == 0) {
2254 scp_unsafe_mode = 1;
2255 } else if (strcmp(argv[i], "-sftp") == 0) {
2256 try_scp = 0; try_sftp = 1;
2257 } else if (strcmp(argv[i], "-scp") == 0) {
2258 try_scp = 1; try_sftp = 0;
2259 } else if (strcmp(argv[i], "--") == 0) {
2263 cmdline_error("unknown option \"%s\"", argv[i]);
2273 get_dir_list(argc, argv);
2280 targetshouldbedirectory = 1;
2282 if (colon(argv[argc - 1]) != NULL)
2283 toremote(argc, argv);
2285 tolocal(argc, argv);
2288 if (back != NULL && back->socket(backhandle) != NULL) {
2290 back->special(backhandle, TS_EOF);
2291 ssh_scp_recv((unsigned char *) &ch, 1);
2296 console_provide_logctx(NULL);
2297 back->free(backhandle);
2301 return (errs == 0 ? 0 : 1);