2 * scp.c - Scp (Secure Copy) client for PuTTY.
3 * Joris van Rantwijk, Simon Tatham
5 * This is mainly based on ssh-1.2.26/scp.c by Timo Rinne & Tatu Ylonen.
6 * They, in turn, used stuff from BSD rcp.
8 * (SGT, 2001-09-10: Joris van Rantwijk assures me that although
9 * this file as originally submitted was inspired by, and
10 * _structurally_ based on, ssh-1.2.26's scp.c, there wasn't any
11 * actual code duplicated, so the above comment shouldn't give rise
12 * to licensing issues.)
22 #define PUTTY_DO_GLOBALS
30 static int verbose = 0;
31 static int recursive = 0;
32 static int preserve = 0;
33 static int targetshouldbedirectory = 0;
34 static int statistics = 1;
35 static int prev_stats_len = 0;
36 static int scp_unsafe_mode = 0;
38 static int gui_mode = 0;
39 static int try_scp = 1;
40 static int try_sftp = 1;
41 static int main_cmd_is_sftp = 0;
42 static int fallback_cmd_is_sftp = 0;
43 static int using_sftp = 0;
46 static void *backhandle;
49 static void source(char *src);
50 static void rsource(char *src);
51 static void sink(char *targ, char *src);
54 * The maximum amount of queued data we accept before we stop and
55 * wait for the server to process some.
57 #define MAX_SCP_BUFSIZE 16384
59 void ldisc_send(void *handle, char *buf, int len, int interactive)
62 * This is only here because of the calls to ldisc_send(NULL,
63 * 0) in ssh.c. Nothing in PSCP actually needs to use the ldisc
64 * as an ldisc. So if we get called with any real data, I want
70 static void tell_char(FILE * stream, char c)
75 gui_send_char(stream == stderr, c);
78 static void tell_str(FILE * stream, char *str)
82 for (i = 0; i < strlen(str); ++i)
83 tell_char(stream, str[i]);
86 static void tell_user(FILE * stream, char *fmt, ...)
91 str = dupvprintf(fmt, ap);
93 str2 = dupcat(str, "\n", NULL);
95 tell_str(stream, str2);
100 * Print an error message and perform a fatal exit.
102 void fatalbox(char *fmt, ...)
107 str = dupvprintf(fmt, ap);
108 str2 = dupcat("Fatal: ", str, "\n", NULL);
111 tell_str(stderr, str2);
116 gui_send_errcount(list, errs);
120 void modalfatalbox(char *fmt, ...)
125 str = dupvprintf(fmt, ap);
126 str2 = dupcat("Fatal: ", str, "\n", NULL);
129 tell_str(stderr, str2);
134 gui_send_errcount(list, errs);
138 void connection_fatal(void *frontend, char *fmt, ...)
143 str = dupvprintf(fmt, ap);
144 str2 = dupcat("Fatal: ", str, "\n", NULL);
147 tell_str(stderr, str2);
152 gui_send_errcount(list, errs);
158 * In pscp, all agent requests should be synchronous, so this is a
161 void agent_schedule_callback(void (*callback)(void *, void *, int),
162 void *callback_ctx, void *data, int len)
164 assert(!"We shouldn't be here");
168 * Receive a block of data from the SSH link. Block until all data
171 * To do this, we repeatedly call the SSH protocol module, with our
172 * own trap in from_backend() to catch the data that comes back. We
173 * do this until we have enough data.
176 static unsigned char *outptr; /* where to put the data */
177 static unsigned outlen; /* how much data required */
178 static unsigned char *pending = NULL; /* any spare data */
179 static unsigned pendlen = 0, pendsize = 0; /* length and phys. size of buffer */
180 int from_backend(void *frontend, int is_stderr, const char *data, int datalen)
182 unsigned char *p = (unsigned char *) data;
183 unsigned len = (unsigned) datalen;
186 * stderr data is just spouted to local stderr and otherwise
191 fwrite(data, 1, len, stderr);
196 * If this is before the real session begins, just return.
201 if ((outlen > 0) && (len > 0)) {
202 unsigned used = outlen;
205 memcpy(outptr, p, used);
213 if (pendsize < pendlen + len) {
214 pendsize = pendlen + len + 4096;
215 pending = sresize(pending, pendsize, unsigned char);
217 fatalbox("Out of memory");
219 memcpy(pending + pendlen, p, len);
225 static int ssh_scp_recv(unsigned char *buf, int len)
231 * See if the pending-input block contains some of what we
235 unsigned pendused = pendlen;
236 if (pendused > outlen)
238 memcpy(outptr, pending, pendused);
239 memmove(pending, pending + pendused, pendlen - pendused);
253 if (ssh_sftp_loop_iteration() < 0)
261 * Loop through the ssh connection and authentication process.
263 static void ssh_scp_init(void)
265 while (!back->sendok(backhandle)) {
266 if (ssh_sftp_loop_iteration() < 0)
270 /* Work out which backend we ended up using. */
271 if (!ssh_fallback_cmd(backhandle))
272 using_sftp = main_cmd_is_sftp;
274 using_sftp = fallback_cmd_is_sftp;
278 tell_user(stderr, "Using SFTP");
280 tell_user(stderr, "Using SCP1");
285 * Print an error message and exit after closing the SSH link.
287 static void bump(char *fmt, ...)
292 str = dupvprintf(fmt, ap);
294 str2 = dupcat(str, "\n", NULL);
296 tell_str(stderr, str2);
300 if (back != NULL && back->socket(backhandle) != NULL) {
302 back->special(backhandle, TS_EOF);
303 ssh_scp_recv((unsigned char *) &ch, 1);
307 gui_send_errcount(list, errs);
313 * Open an SSH connection to user@host and execute cmd.
315 static void do_cmd(char *host, char *user, char *cmd)
321 if (host == NULL || host[0] == '\0')
322 bump("Empty host name");
325 * If we haven't loaded session details already (e.g., from -load),
326 * try looking for a session called "host".
328 if (!loaded_session) {
329 /* Try to load settings for `host' into a temporary config */
332 do_defaults(host, &cfg2);
333 if (cfg2.host[0] != '\0') {
334 /* Settings present and include hostname */
335 /* Re-load data into the real config. */
336 do_defaults(host, &cfg);
338 /* Session doesn't exist or mention a hostname. */
339 /* Use `host' as a bare hostname. */
340 strncpy(cfg.host, host, sizeof(cfg.host) - 1);
341 cfg.host[sizeof(cfg.host) - 1] = '\0';
344 /* Patch in hostname `host' to session details. */
345 strncpy(cfg.host, host, sizeof(cfg.host) - 1);
346 cfg.host[sizeof(cfg.host) - 1] = '\0';
350 * Force use of SSH. (If they got the protocol wrong we assume the
351 * port is useless too.)
353 if (cfg.protocol != PROT_SSH) {
354 cfg.protocol = PROT_SSH;
359 * Enact command-line overrides.
361 cmdline_run_saved(&cfg);
364 * Trim leading whitespace off the hostname if it's there.
367 int space = strspn(cfg.host, " \t");
368 memmove(cfg.host, cfg.host+space, 1+strlen(cfg.host)-space);
371 /* See if host is of the form user@host */
372 if (cfg.host[0] != '\0') {
373 char *atsign = strrchr(cfg.host, '@');
374 /* Make sure we're not overflowing the user field */
376 if (atsign - cfg.host < sizeof cfg.username) {
377 strncpy(cfg.username, cfg.host, atsign - cfg.host);
378 cfg.username[atsign - cfg.host] = '\0';
380 memmove(cfg.host, atsign + 1, 1 + strlen(atsign + 1));
385 * Trim a colon suffix off the hostname if it's there.
387 cfg.host[strcspn(cfg.host, ":")] = '\0';
390 * Remove any remaining whitespace from the hostname.
394 while (cfg.host[p2] != '\0') {
395 if (cfg.host[p2] != ' ' && cfg.host[p2] != '\t') {
396 cfg.host[p1] = cfg.host[p2];
405 if (user != NULL && user[0] != '\0') {
406 strncpy(cfg.username, user, sizeof(cfg.username) - 1);
407 cfg.username[sizeof(cfg.username) - 1] = '\0';
408 } else if (cfg.username[0] == '\0') {
409 user = get_username();
411 bump("Empty user name");
414 tell_user(stderr, "Guessing user name: %s", user);
415 strncpy(cfg.username, user, sizeof(cfg.username) - 1);
416 cfg.username[sizeof(cfg.username) - 1] = '\0';
422 * Disable scary things which shouldn't be enabled for simple
423 * things like SCP and SFTP: agent forwarding, port forwarding,
428 cfg.portfwd[0] = cfg.portfwd[1] = '\0';
431 * Set up main and possibly fallback command depending on
432 * options specified by user.
433 * Attempt to start the SFTP subsystem as a first choice,
434 * falling back to the provided scp command if that fails.
436 cfg.remote_cmd_ptr2 = NULL;
438 /* First choice is SFTP subsystem. */
439 main_cmd_is_sftp = 1;
440 strcpy(cfg.remote_cmd, "sftp");
441 cfg.ssh_subsys = TRUE;
443 /* Fallback is to use the provided scp command. */
444 fallback_cmd_is_sftp = 0;
445 cfg.remote_cmd_ptr2 = cmd;
446 cfg.ssh_subsys2 = FALSE;
448 /* Since we're not going to try SCP, we may as well try
449 * harder to find an SFTP server, since in the current
450 * implementation we have a spare slot. */
451 fallback_cmd_is_sftp = 1;
452 /* see psftp.c for full explanation of this kludge */
453 cfg.remote_cmd_ptr2 =
454 "test -x /usr/lib/sftp-server && exec /usr/lib/sftp-server\n"
455 "test -x /usr/local/lib/sftp-server && exec /usr/local/lib/sftp-server\n"
457 cfg.ssh_subsys2 = FALSE;
460 /* Don't try SFTP at all; just try the scp command. */
461 main_cmd_is_sftp = 0;
462 cfg.remote_cmd_ptr = cmd;
463 cfg.ssh_subsys = FALSE;
469 err = back->init(NULL, &backhandle, &cfg, cfg.host, cfg.port, &realhost,
470 0, cfg.tcp_keepalives);
472 bump("ssh_init: %s", err);
473 logctx = log_init(NULL, &cfg);
474 back->provide_logctx(backhandle, logctx);
475 console_provide_logctx(logctx);
477 if (verbose && realhost != NULL)
478 tell_user(stderr, "Connected to %s\n", realhost);
483 * Update statistic information about current file.
485 static void print_stats(char *name, unsigned long size, unsigned long done,
486 time_t start, time_t now)
495 elap = (unsigned long) difftime(now, start);
498 ratebs = (float) done / elap;
500 ratebs = (float) done;
505 eta = (unsigned long) ((size - done) / ratebs);
506 etastr = dupprintf("%02ld:%02ld:%02ld",
507 eta / 3600, (eta % 3600) / 60, eta % 60);
509 pct = (int) (100 * (done * 1.0 / size));
512 gui_update_stats(name, size, pct, elap, done, eta,
513 (unsigned long) ratebs);
515 len = printf("\r%-25.25s | %10ld kB | %5.1f kB/s | ETA: %8s | %3d%%",
516 name, done / 1024, ratebs / 1024.0, etastr, pct);
517 if (len < prev_stats_len)
518 printf("%*s", prev_stats_len - len, "");
519 prev_stats_len = len;
531 * Find a colon in str and return a pointer to the colon.
532 * This is used to separate hostname from filename.
534 static char *colon(char *str)
536 /* We ignore a leading colon, since the hostname cannot be
537 empty. We also ignore a colon as second character because
538 of filenames like f:myfile.txt. */
539 if (str[0] == '\0' || str[0] == ':' || str[1] == ':')
541 while (*str != '\0' && *str != ':' && *str != '/' && *str != '\\')
550 * Return a pointer to the portion of str that comes after the last
551 * slash (or backslash or colon, if `local' is TRUE).
553 static char *stripslashes(char *str, int local)
558 p = strchr(str, ':');
562 p = strrchr(str, '/');
566 p = strrchr(str, '\\');
574 * Determine whether a string is entirely composed of dots.
576 static int is_dots(char *str)
578 return str[strspn(str, ".")] == '\0';
582 * Wait for a response from the other side.
583 * Return 0 if ok, -1 if error.
585 static int response(void)
587 char ch, resp, rbuf[2048];
590 if (ssh_scp_recv((unsigned char *) &resp, 1) <= 0)
591 bump("Lost connection");
601 case 2: /* fatal error */
603 if (ssh_scp_recv((unsigned char *) &ch, 1) <= 0)
604 bump("Protocol error: Lost connection");
606 } while (p < sizeof(rbuf) && ch != '\n');
609 tell_user(stderr, "%s\n", rbuf);
617 int sftp_recvdata(char *buf, int len)
619 return ssh_scp_recv((unsigned char *) buf, len);
621 int sftp_senddata(char *buf, int len)
623 back->send(backhandle, buf, len);
627 /* ----------------------------------------------------------------------
628 * sftp-based replacement for the hacky `pscp -ls'.
630 static int sftp_ls_compare(const void *av, const void *bv)
632 const struct fxp_name *a = (const struct fxp_name *) av;
633 const struct fxp_name *b = (const struct fxp_name *) bv;
634 return strcmp(a->filename, b->filename);
636 void scp_sftp_listdir(char *dirname)
638 struct fxp_handle *dirh;
639 struct fxp_names *names;
640 struct fxp_name *ournames;
641 struct sftp_packet *pktin;
642 struct sftp_request *req, *rreq;
643 int nnames, namesize;
647 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
652 printf("Listing directory %s\n", dirname);
654 sftp_register(req = fxp_opendir_send(dirname));
655 rreq = sftp_find_request(pktin = sftp_recv());
657 dirh = fxp_opendir_recv(pktin, rreq);
660 printf("Unable to open %s: %s\n", dirname, fxp_error());
662 nnames = namesize = 0;
667 sftp_register(req = fxp_readdir_send(dirh));
668 rreq = sftp_find_request(pktin = sftp_recv());
670 names = fxp_readdir_recv(pktin, rreq);
673 if (fxp_error_type() == SSH_FX_EOF)
675 printf("Reading directory %s: %s\n", dirname, fxp_error());
678 if (names->nnames == 0) {
679 fxp_free_names(names);
683 if (nnames + names->nnames >= namesize) {
684 namesize += names->nnames + 128;
685 ournames = sresize(ournames, namesize, struct fxp_name);
688 for (i = 0; i < names->nnames; i++)
689 ournames[nnames++] = names->names[i];
691 names->nnames = 0; /* prevent free_names */
692 fxp_free_names(names);
694 sftp_register(req = fxp_close_send(dirh));
695 rreq = sftp_find_request(pktin = sftp_recv());
697 fxp_close_recv(pktin, rreq);
700 * Now we have our filenames. Sort them by actual file
701 * name, and then output the longname parts.
703 qsort(ournames, nnames, sizeof(*ournames), sftp_ls_compare);
708 for (i = 0; i < nnames; i++)
709 printf("%s\n", ournames[i].longname);
713 /* ----------------------------------------------------------------------
714 * Helper routines that contain the actual SCP protocol elements,
715 * implemented both as SCP1 and SFTP.
718 static struct scp_sftp_dirstack {
719 struct scp_sftp_dirstack *next;
720 struct fxp_name *names;
721 int namepos, namelen;
724 int matched_something; /* wildcard match set was non-empty */
725 } *scp_sftp_dirstack_head;
726 static char *scp_sftp_remotepath, *scp_sftp_currentname;
727 static char *scp_sftp_wildcard;
728 static int scp_sftp_targetisdir, scp_sftp_donethistarget;
729 static int scp_sftp_preserve, scp_sftp_recursive;
730 static unsigned long scp_sftp_mtime, scp_sftp_atime;
731 static int scp_has_times;
732 static struct fxp_handle *scp_sftp_filehandle;
733 static struct fxp_xfer *scp_sftp_xfer;
734 static uint64 scp_sftp_fileoffset;
736 void scp_source_setup(char *target, int shouldbedir)
740 * Find out whether the target filespec is in fact a
743 struct sftp_packet *pktin;
744 struct sftp_request *req, *rreq;
745 struct fxp_attrs attrs;
749 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
754 sftp_register(req = fxp_stat_send(target));
755 rreq = sftp_find_request(pktin = sftp_recv());
757 ret = fxp_stat_recv(pktin, rreq, &attrs);
759 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS))
760 scp_sftp_targetisdir = 0;
762 scp_sftp_targetisdir = (attrs.permissions & 0040000) != 0;
764 if (shouldbedir && !scp_sftp_targetisdir) {
765 bump("pscp: remote filespec %s: not a directory\n", target);
768 scp_sftp_remotepath = dupstr(target);
776 int scp_send_errmsg(char *str)
779 /* do nothing; we never need to send our errors to the server */
781 back->send(backhandle, "\001", 1);/* scp protocol error prefix */
782 back->send(backhandle, str, strlen(str));
784 return 0; /* can't fail */
787 int scp_send_filetimes(unsigned long mtime, unsigned long atime)
790 scp_sftp_mtime = mtime;
791 scp_sftp_atime = atime;
796 sprintf(buf, "T%lu 0 %lu 0\n", mtime, atime);
797 back->send(backhandle, buf, strlen(buf));
802 int scp_send_filename(char *name, unsigned long size, int modes)
806 struct sftp_packet *pktin;
807 struct sftp_request *req, *rreq;
809 if (scp_sftp_targetisdir) {
810 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
812 fullname = dupstr(scp_sftp_remotepath);
815 sftp_register(req = fxp_open_send(fullname, SSH_FXF_WRITE |
816 SSH_FXF_CREAT | SSH_FXF_TRUNC));
817 rreq = sftp_find_request(pktin = sftp_recv());
819 scp_sftp_filehandle = fxp_open_recv(pktin, rreq);
821 if (!scp_sftp_filehandle) {
822 tell_user(stderr, "pscp: unable to open %s: %s",
823 fullname, fxp_error());
827 scp_sftp_fileoffset = uint64_make(0, 0);
828 scp_sftp_xfer = xfer_upload_init(scp_sftp_filehandle,
829 scp_sftp_fileoffset);
834 sprintf(buf, "C%04o %lu ", modes, size);
835 back->send(backhandle, buf, strlen(buf));
836 back->send(backhandle, name, strlen(name));
837 back->send(backhandle, "\n", 1);
842 int scp_send_filedata(char *data, int len)
846 struct sftp_packet *pktin;
848 if (!scp_sftp_filehandle) {
852 while (!xfer_upload_ready(scp_sftp_xfer)) {
854 ret = xfer_upload_gotpkt(scp_sftp_xfer, pktin);
856 tell_user(stderr, "error while writing: %s\n", fxp_error());
862 xfer_upload_data(scp_sftp_xfer, data, len);
864 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, len);
867 int bufsize = back->send(backhandle, data, len);
870 * If the network transfer is backing up - that is, the
871 * remote site is not accepting data as fast as we can
872 * produce it - then we must loop on network events until
873 * we have space in the buffer again.
875 while (bufsize > MAX_SCP_BUFSIZE) {
876 if (ssh_sftp_loop_iteration() < 0)
878 bufsize = back->sendbuffer(backhandle);
885 int scp_send_finish(void)
888 struct fxp_attrs attrs;
889 struct sftp_packet *pktin;
890 struct sftp_request *req, *rreq;
893 while (!xfer_done(scp_sftp_xfer)) {
895 xfer_upload_gotpkt(scp_sftp_xfer, pktin);
897 xfer_cleanup(scp_sftp_xfer);
899 if (!scp_sftp_filehandle) {
903 attrs.flags = SSH_FILEXFER_ATTR_ACMODTIME;
904 attrs.atime = scp_sftp_atime;
905 attrs.mtime = scp_sftp_mtime;
906 sftp_register(req = fxp_fsetstat_send(scp_sftp_filehandle, attrs));
907 rreq = sftp_find_request(pktin = sftp_recv());
909 ret = fxp_fsetstat_recv(pktin, rreq);
911 tell_user(stderr, "unable to set file times: %s\n", fxp_error());
915 sftp_register(req = fxp_close_send(scp_sftp_filehandle));
916 rreq = sftp_find_request(pktin = sftp_recv());
918 fxp_close_recv(pktin, rreq);
922 back->send(backhandle, "", 1);
927 char *scp_save_remotepath(void)
930 return scp_sftp_remotepath;
935 void scp_restore_remotepath(char *data)
938 scp_sftp_remotepath = data;
941 int scp_send_dirname(char *name, int modes)
946 struct fxp_attrs attrs;
947 struct sftp_packet *pktin;
948 struct sftp_request *req, *rreq;
951 if (scp_sftp_targetisdir) {
952 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
954 fullname = dupstr(scp_sftp_remotepath);
958 * We don't worry about whether we managed to create the
959 * directory, because if it exists already it's OK just to
960 * use it. Instead, we will stat it afterwards, and if it
961 * exists and is a directory we will assume we were either
962 * successful or it didn't matter.
964 sftp_register(req = fxp_mkdir_send(fullname));
965 rreq = sftp_find_request(pktin = sftp_recv());
967 ret = fxp_mkdir_recv(pktin, rreq);
972 err = "server reported no error";
974 sftp_register(req = fxp_stat_send(fullname));
975 rreq = sftp_find_request(pktin = sftp_recv());
977 ret = fxp_stat_recv(pktin, rreq, &attrs);
979 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) ||
980 !(attrs.permissions & 0040000)) {
981 tell_user(stderr, "unable to create directory %s: %s",
987 scp_sftp_remotepath = fullname;
992 sprintf(buf, "D%04o 0 ", modes);
993 back->send(backhandle, buf, strlen(buf));
994 back->send(backhandle, name, strlen(name));
995 back->send(backhandle, "\n", 1);
1000 int scp_send_enddir(void)
1003 sfree(scp_sftp_remotepath);
1006 back->send(backhandle, "E\n", 2);
1012 * Yes, I know; I have an scp_sink_setup _and_ an scp_sink_init.
1013 * That's bad. The difference is that scp_sink_setup is called once
1014 * right at the start, whereas scp_sink_init is called to
1015 * initialise every level of recursion in the protocol.
1017 int scp_sink_setup(char *source, int preserve, int recursive)
1023 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
1028 * It's possible that the source string we've been given
1029 * contains a wildcard. If so, we must split the directory
1030 * away from the wildcard itself (throwing an error if any
1031 * wildcardness comes before the final slash) and arrange
1032 * things so that a dirstack entry will be set up.
1034 newsource = snewn(1+strlen(source), char);
1035 if (!wc_unescape(newsource, source)) {
1036 /* Yes, here we go; it's a wildcard. Bah. */
1037 char *dupsource, *lastpart, *dirpart, *wildcard;
1038 dupsource = dupstr(source);
1039 lastpart = stripslashes(dupsource, 0);
1040 wildcard = dupstr(lastpart);
1042 if (*dupsource && dupsource[1]) {
1044 * The remains of dupsource are at least two
1045 * characters long, meaning the pathname wasn't
1046 * empty or just `/'. Hence, we remove the trailing
1049 lastpart[-1] = '\0';
1050 } else if (!*dupsource) {
1052 * The remains of dupsource are _empty_ - the whole
1053 * pathname was a wildcard. Hence we need to
1054 * replace it with ".".
1057 dupsource = dupstr(".");
1061 * Now we have separated our string into dupsource (the
1062 * directory part) and wildcard. Both of these will
1063 * need freeing at some point. Next step is to remove
1064 * wildcard escapes from the directory part, throwing
1065 * an error if it contains a real wildcard.
1067 dirpart = snewn(1+strlen(dupsource), char);
1068 if (!wc_unescape(dirpart, dupsource)) {
1069 tell_user(stderr, "%s: multiple-level wildcards unsupported",
1079 * Now we have dirpart (unescaped, ie a valid remote
1080 * path), and wildcard (a wildcard). This will be
1081 * sufficient to arrange a dirstack entry.
1083 scp_sftp_remotepath = dirpart;
1084 scp_sftp_wildcard = wildcard;
1087 scp_sftp_remotepath = newsource;
1088 scp_sftp_wildcard = NULL;
1090 scp_sftp_preserve = preserve;
1091 scp_sftp_recursive = recursive;
1092 scp_sftp_donethistarget = 0;
1093 scp_sftp_dirstack_head = NULL;
1098 int scp_sink_init(void)
1101 back->send(backhandle, "", 1);
1106 #define SCP_SINK_FILE 1
1107 #define SCP_SINK_DIR 2
1108 #define SCP_SINK_ENDDIR 3
1109 #define SCP_SINK_RETRY 4 /* not an action; just try again */
1110 struct scp_sink_action {
1111 int action; /* FILE, DIR, ENDDIR */
1112 char *buf; /* will need freeing after use */
1113 char *name; /* filename or dirname (not ENDDIR) */
1114 int mode; /* access mode (not ENDDIR) */
1115 unsigned long size; /* file size (not ENDDIR) */
1116 int settime; /* 1 if atime and mtime are filled */
1117 unsigned long atime, mtime; /* access times for the file */
1120 int scp_get_sink_action(struct scp_sink_action *act)
1124 int must_free_fname;
1125 struct fxp_attrs attrs;
1126 struct sftp_packet *pktin;
1127 struct sftp_request *req, *rreq;
1130 if (!scp_sftp_dirstack_head) {
1131 if (!scp_sftp_donethistarget) {
1133 * Simple case: we are only dealing with one file.
1135 fname = scp_sftp_remotepath;
1136 must_free_fname = 0;
1137 scp_sftp_donethistarget = 1;
1140 * Even simpler case: one file _which we've done_.
1141 * Return 1 (finished).
1147 * We're now in the middle of stepping through a list
1148 * of names returned from fxp_readdir(); so let's carry
1151 struct scp_sftp_dirstack *head = scp_sftp_dirstack_head;
1152 while (head->namepos < head->namelen &&
1153 (is_dots(head->names[head->namepos].filename) ||
1155 !wc_match(head->wildcard,
1156 head->names[head->namepos].filename))))
1157 head->namepos++; /* skip . and .. */
1158 if (head->namepos < head->namelen) {
1159 head->matched_something = 1;
1160 fname = dupcat(head->dirpath, "/",
1161 head->names[head->namepos++].filename,
1163 must_free_fname = 1;
1166 * We've come to the end of the list; pop it off
1167 * the stack and return an ENDDIR action (or RETRY
1168 * if this was a wildcard match).
1170 if (head->wildcard) {
1171 act->action = SCP_SINK_RETRY;
1172 if (!head->matched_something) {
1173 tell_user(stderr, "pscp: wildcard '%s' matched "
1174 "no files", head->wildcard);
1177 sfree(head->wildcard);
1180 act->action = SCP_SINK_ENDDIR;
1183 sfree(head->dirpath);
1185 scp_sftp_dirstack_head = head->next;
1193 * Now we have a filename. Stat it, and see if it's a file
1196 sftp_register(req = fxp_stat_send(fname));
1197 rreq = sftp_find_request(pktin = sftp_recv());
1198 assert(rreq == req);
1199 ret = fxp_stat_recv(pktin, rreq, &attrs);
1201 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS)) {
1202 tell_user(stderr, "unable to identify %s: %s", fname,
1203 ret ? "file type not supplied" : fxp_error());
1208 if (attrs.permissions & 0040000) {
1209 struct scp_sftp_dirstack *newitem;
1210 struct fxp_handle *dirhandle;
1211 int nnames, namesize;
1212 struct fxp_name *ournames;
1213 struct fxp_names *names;
1216 * It's a directory. If we're not in recursive mode,
1217 * this merits a complaint (which is fatal if the name
1218 * was specified directly, but not if it was matched by
1221 * We skip this complaint completely if
1222 * scp_sftp_wildcard is set, because that's an
1223 * indication that we're not actually supposed to
1224 * _recursively_ transfer the dir, just scan it for
1225 * things matching the wildcard.
1227 if (!scp_sftp_recursive && !scp_sftp_wildcard) {
1228 tell_user(stderr, "pscp: %s: is a directory", fname);
1230 if (must_free_fname) sfree(fname);
1231 if (scp_sftp_dirstack_head) {
1232 act->action = SCP_SINK_RETRY;
1240 * Otherwise, the fun begins. We must fxp_opendir() the
1241 * directory, slurp the filenames into memory, return
1242 * SCP_SINK_DIR (unless this is a wildcard match), and
1243 * set targetisdir. The next time we're called, we will
1244 * run through the list of filenames one by one,
1245 * matching them against a wildcard if present.
1247 * If targetisdir is _already_ set (meaning we're
1248 * already in the middle of going through another such
1249 * list), we must push the other (target,namelist) pair
1252 sftp_register(req = fxp_opendir_send(fname));
1253 rreq = sftp_find_request(pktin = sftp_recv());
1254 assert(rreq == req);
1255 dirhandle = fxp_opendir_recv(pktin, rreq);
1258 tell_user(stderr, "scp: unable to open directory %s: %s",
1259 fname, fxp_error());
1260 if (must_free_fname) sfree(fname);
1264 nnames = namesize = 0;
1269 sftp_register(req = fxp_readdir_send(dirhandle));
1270 rreq = sftp_find_request(pktin = sftp_recv());
1271 assert(rreq == req);
1272 names = fxp_readdir_recv(pktin, rreq);
1274 if (names == NULL) {
1275 if (fxp_error_type() == SSH_FX_EOF)
1277 tell_user(stderr, "scp: reading directory %s: %s\n",
1278 fname, fxp_error());
1279 if (must_free_fname) sfree(fname);
1284 if (names->nnames == 0) {
1285 fxp_free_names(names);
1288 if (nnames + names->nnames >= namesize) {
1289 namesize += names->nnames + 128;
1290 ournames = sresize(ournames, namesize, struct fxp_name);
1292 for (i = 0; i < names->nnames; i++)
1293 ournames[nnames++] = names->names[i];
1294 names->nnames = 0; /* prevent free_names */
1295 fxp_free_names(names);
1297 sftp_register(req = fxp_close_send(dirhandle));
1298 rreq = sftp_find_request(pktin = sftp_recv());
1299 assert(rreq == req);
1300 fxp_close_recv(pktin, rreq);
1302 newitem = snew(struct scp_sftp_dirstack);
1303 newitem->next = scp_sftp_dirstack_head;
1304 newitem->names = ournames;
1305 newitem->namepos = 0;
1306 newitem->namelen = nnames;
1307 if (must_free_fname)
1308 newitem->dirpath = fname;
1310 newitem->dirpath = dupstr(fname);
1311 if (scp_sftp_wildcard) {
1312 newitem->wildcard = scp_sftp_wildcard;
1313 newitem->matched_something = 0;
1314 scp_sftp_wildcard = NULL;
1316 newitem->wildcard = NULL;
1318 scp_sftp_dirstack_head = newitem;
1320 if (newitem->wildcard) {
1321 act->action = SCP_SINK_RETRY;
1323 act->action = SCP_SINK_DIR;
1324 act->buf = dupstr(stripslashes(fname, 0));
1325 act->name = act->buf;
1326 act->size = 0; /* duhh, it's a directory */
1327 act->mode = 07777 & attrs.permissions;
1328 if (scp_sftp_preserve &&
1329 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1330 act->atime = attrs.atime;
1331 act->mtime = attrs.mtime;
1340 * It's a file. Return SCP_SINK_FILE.
1342 act->action = SCP_SINK_FILE;
1343 act->buf = dupstr(stripslashes(fname, 0));
1344 act->name = act->buf;
1345 if (attrs.flags & SSH_FILEXFER_ATTR_SIZE) {
1346 if (uint64_compare(attrs.size,
1347 uint64_make(0, ULONG_MAX)) > 0) {
1348 act->size = ULONG_MAX; /* *boggle* */
1350 act->size = attrs.size.lo;
1352 act->size = ULONG_MAX; /* no idea */
1353 act->mode = 07777 & attrs.permissions;
1354 if (scp_sftp_preserve &&
1355 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1356 act->atime = attrs.atime;
1357 act->mtime = attrs.mtime;
1361 if (must_free_fname)
1362 scp_sftp_currentname = fname;
1364 scp_sftp_currentname = dupstr(fname);
1379 if (ssh_scp_recv((unsigned char *) &ch, 1) <= 0)
1382 bump("Protocol error: Unexpected newline");
1386 if (ssh_scp_recv((unsigned char *) &ch, 1) <= 0)
1387 bump("Lost connection");
1390 act->buf = sresize(act->buf, bufsize, char);
1393 } while (ch != '\n');
1394 act->buf[i - 1] = '\0';
1396 case '\01': /* error */
1397 tell_user(stderr, "%s\n", act->buf);
1399 continue; /* go round again */
1400 case '\02': /* fatal error */
1401 bump("%s", act->buf);
1403 back->send(backhandle, "", 1);
1404 act->action = SCP_SINK_ENDDIR;
1407 if (sscanf(act->buf, "%ld %*d %ld %*d",
1408 &act->mtime, &act->atime) == 2) {
1410 back->send(backhandle, "", 1);
1411 continue; /* go round again */
1413 bump("Protocol error: Illegal time format");
1416 act->action = (action == 'C' ? SCP_SINK_FILE : SCP_SINK_DIR);
1419 bump("Protocol error: Expected control record");
1422 * We will go round this loop only once, unless we hit
1429 * If we get here, we must have seen SCP_SINK_FILE or
1432 if (sscanf(act->buf, "%o %lu %n", &act->mode, &act->size, &i) != 2)
1433 bump("Protocol error: Illegal file descriptor format");
1434 act->name = act->buf + i;
1439 int scp_accept_filexfer(void)
1442 struct sftp_packet *pktin;
1443 struct sftp_request *req, *rreq;
1445 sftp_register(req = fxp_open_send(scp_sftp_currentname, SSH_FXF_READ));
1446 rreq = sftp_find_request(pktin = sftp_recv());
1447 assert(rreq == req);
1448 scp_sftp_filehandle = fxp_open_recv(pktin, rreq);
1450 if (!scp_sftp_filehandle) {
1451 tell_user(stderr, "pscp: unable to open %s: %s",
1452 scp_sftp_currentname, fxp_error());
1456 scp_sftp_fileoffset = uint64_make(0, 0);
1457 scp_sftp_xfer = xfer_download_init(scp_sftp_filehandle,
1458 scp_sftp_fileoffset);
1459 sfree(scp_sftp_currentname);
1462 back->send(backhandle, "", 1);
1463 return 0; /* can't fail */
1467 int scp_recv_filedata(char *data, int len)
1470 struct sftp_packet *pktin;
1474 xfer_download_queue(scp_sftp_xfer);
1475 pktin = sftp_recv();
1476 ret = xfer_download_gotpkt(scp_sftp_xfer, pktin);
1479 tell_user(stderr, "pscp: error while reading: %s", fxp_error());
1484 if (xfer_download_data(scp_sftp_xfer, &vbuf, &actuallen)) {
1486 * This assertion relies on the fact that the natural
1487 * block size used in the xfer manager is at most that
1488 * used in this module. I don't like crossing layers in
1489 * this way, but it'll do for now.
1491 assert(actuallen <= len);
1492 memcpy(data, vbuf, actuallen);
1497 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, actuallen);
1501 return ssh_scp_recv((unsigned char *) data, len);
1505 int scp_finish_filerecv(void)
1508 struct sftp_packet *pktin;
1509 struct sftp_request *req, *rreq;
1512 * Ensure that xfer_done() will work correctly, so we can
1513 * clean up any outstanding requests from the file
1516 xfer_set_error(scp_sftp_xfer);
1517 while (!xfer_done(scp_sftp_xfer)) {
1521 pktin = sftp_recv();
1522 xfer_download_gotpkt(scp_sftp_xfer, pktin);
1523 if (xfer_download_data(scp_sftp_xfer, &vbuf, &len))
1526 xfer_cleanup(scp_sftp_xfer);
1528 sftp_register(req = fxp_close_send(scp_sftp_filehandle));
1529 rreq = sftp_find_request(pktin = sftp_recv());
1530 assert(rreq == req);
1531 fxp_close_recv(pktin, rreq);
1534 back->send(backhandle, "", 1);
1539 /* ----------------------------------------------------------------------
1540 * Send an error message to the other side and to the screen.
1541 * Increment error counter.
1543 static void run_err(const char *fmt, ...)
1549 str = dupvprintf(fmt, ap);
1550 str2 = dupcat("scp: ", str, "\n", NULL);
1552 scp_send_errmsg(str2);
1553 tell_user(stderr, "%s", str2);
1559 * Execute the source part of the SCP protocol.
1561 static void source(char *src)
1564 unsigned long mtime, atime;
1569 unsigned long stat_bytes;
1570 time_t stat_starttime, stat_lasttime;
1572 attr = file_type(src);
1573 if (attr == FILE_TYPE_NONEXISTENT ||
1574 attr == FILE_TYPE_WEIRD) {
1575 run_err("%s: %s file or directory", src,
1576 (attr == FILE_TYPE_WEIRD ? "Not a" : "No such"));
1580 if (attr == FILE_TYPE_DIRECTORY) {
1583 * Avoid . and .. directories.
1586 p = strrchr(src, '/');
1588 p = strrchr(src, '\\');
1593 if (!strcmp(p, ".") || !strcmp(p, ".."))
1594 /* skip . and .. */ ;
1598 run_err("%s: not a regular file", src);
1603 if ((last = strrchr(src, '/')) == NULL)
1607 if (strrchr(last, '\\') != NULL)
1608 last = strrchr(last, '\\') + 1;
1609 if (last == src && strchr(src, ':') != NULL)
1610 last = strchr(src, ':') + 1;
1612 f = open_existing_file(src, &size, &mtime, &atime);
1614 run_err("%s: Cannot open file", src);
1618 if (scp_send_filetimes(mtime, atime))
1623 tell_user(stderr, "Sending file %s, size=%lu", last, size);
1624 if (scp_send_filename(last, size, 0644))
1628 stat_starttime = time(NULL);
1631 for (i = 0; i < size; i += 4096) {
1632 char transbuf[4096];
1637 if ((j = read_from_file(f, transbuf, k)) != k) {
1640 bump("%s: Read error", src);
1642 if (scp_send_filedata(transbuf, k))
1643 bump("%s: Network error occurred", src);
1647 if (time(NULL) != stat_lasttime || i + k == size) {
1648 stat_lasttime = time(NULL);
1649 print_stats(last, size, stat_bytes,
1650 stat_starttime, stat_lasttime);
1657 (void) scp_send_finish();
1661 * Recursively send the contents of a directory.
1663 static void rsource(char *src)
1669 if ((last = strrchr(src, '/')) == NULL)
1673 if (strrchr(last, '\\') != NULL)
1674 last = strrchr(last, '\\') + 1;
1675 if (last == src && strchr(src, ':') != NULL)
1676 last = strchr(src, ':') + 1;
1678 /* maybe send filetime */
1680 save_target = scp_save_remotepath();
1683 tell_user(stderr, "Entering directory: %s", last);
1684 if (scp_send_dirname(last, 0755))
1687 dir = open_directory(src);
1690 while ((filename = read_filename(dir)) != NULL) {
1691 char *foundfile = dupcat(src, "/", filename, NULL);
1697 close_directory(dir);
1699 (void) scp_send_enddir();
1701 scp_restore_remotepath(save_target);
1705 * Execute the sink part of the SCP protocol.
1707 static void sink(char *targ, char *src)
1714 unsigned long received;
1716 unsigned long stat_bytes;
1717 time_t stat_starttime, stat_lasttime;
1720 attr = file_type(targ);
1721 if (attr == FILE_TYPE_DIRECTORY)
1724 if (targetshouldbedirectory && !targisdir)
1725 bump("%s: Not a directory", targ);
1729 struct scp_sink_action act;
1730 if (scp_get_sink_action(&act))
1733 if (act.action == SCP_SINK_ENDDIR)
1736 if (act.action == SCP_SINK_RETRY)
1741 * Prevent the remote side from maliciously writing to
1742 * files outside the target area by sending a filename
1743 * containing `../'. In fact, it shouldn't be sending
1744 * filenames with any slashes or colons in at all; so
1745 * we'll find the last slash, backslash or colon in the
1746 * filename and use only the part after that. (And
1749 * In addition, we also ensure here that if we're
1750 * copying a single file and the target is a directory
1751 * (common usage: `pscp host:filename .') the remote
1752 * can't send us a _different_ file name. We can
1753 * distinguish this case because `src' will be non-NULL
1754 * and the last component of that will fail to match
1755 * (the last component of) the name sent.
1757 * Well, not always; if `src' is a wildcard, we do
1758 * expect to get back filenames that don't correspond
1759 * exactly to it. Ideally in this case, we would like
1760 * to ensure that the returned filename actually
1761 * matches the wildcard pattern - but one of SCP's
1762 * protocol infelicities is that wildcard matching is
1763 * done at the server end _by the server's rules_ and
1764 * so in general this is infeasible. Hence, we only
1765 * accept filenames that don't correspond to `src' if
1766 * unsafe mode is enabled or we are using SFTP (which
1767 * resolves remote wildcards on the client side and can
1770 char *striptarget, *stripsrc;
1772 striptarget = stripslashes(act.name, 1);
1773 if (striptarget != act.name) {
1774 tell_user(stderr, "warning: remote host sent a compound"
1775 " pathname '%s'", act.name);
1776 tell_user(stderr, " renaming local file to '%s'",
1781 * Also check to see if the target filename is '.' or
1782 * '..', or indeed '...' and so on because Windows
1783 * appears to interpret those like '..'.
1785 if (is_dots(striptarget)) {
1786 bump("security violation: remote host attempted to write to"
1787 " a '.' or '..' path!");
1791 stripsrc = stripslashes(src, 1);
1792 if (strcmp(striptarget, stripsrc) &&
1793 !using_sftp && !scp_unsafe_mode) {
1794 tell_user(stderr, "warning: remote host tried to write "
1795 "to a file called '%s'", striptarget);
1796 tell_user(stderr, " when we requested a file "
1797 "called '%s'.", stripsrc);
1798 tell_user(stderr, " If this is a wildcard, "
1799 "consider upgrading to SSH 2 or using");
1800 tell_user(stderr, " the '-unsafe' option. Renaming"
1801 " of this file has been disallowed.");
1802 /* Override the name the server provided with our own. */
1803 striptarget = stripsrc;
1807 if (targ[0] != '\0')
1808 destfname = dir_file_cat(targ, striptarget);
1810 destfname = dupstr(striptarget);
1813 * In this branch of the if, the target area is a
1814 * single file with an explicitly specified name in any
1815 * case, so there's no danger.
1817 destfname = dupstr(targ);
1819 attr = file_type(destfname);
1820 exists = (attr != FILE_TYPE_NONEXISTENT);
1822 if (act.action == SCP_SINK_DIR) {
1823 if (exists && attr != FILE_TYPE_DIRECTORY) {
1824 run_err("%s: Not a directory", destfname);
1828 if (!create_directory(destfname)) {
1829 run_err("%s: Cannot create directory", destfname);
1833 sink(destfname, NULL);
1834 /* can we set the timestamp for directories ? */
1838 f = open_new_file(destfname);
1840 run_err("%s: Cannot create file", destfname);
1844 if (scp_accept_filexfer())
1848 stat_starttime = time(NULL);
1850 stat_name = stripslashes(destfname, 1);
1853 while (received < act.size) {
1854 char transbuf[4096];
1855 unsigned long blksize;
1858 if (blksize > (act.size - received))
1859 blksize = act.size - received;
1860 read = scp_recv_filedata(transbuf, (int)blksize);
1862 bump("Lost connection");
1865 if (write_to_file(f, transbuf, read) != (int)read) {
1867 /* FIXME: in sftp we can actually abort the transfer */
1869 printf("\r%-25.25s | %50s\n",
1871 "Write error.. waiting for end of file");
1876 if (time(NULL) > stat_lasttime ||
1877 received + read == act.size) {
1878 stat_lasttime = time(NULL);
1879 print_stats(stat_name, act.size, stat_bytes,
1880 stat_starttime, stat_lasttime);
1886 set_file_times(f, act.mtime, act.atime);
1891 run_err("%s: Write error", destfname);
1894 (void) scp_finish_filerecv();
1901 * We will copy local files to a remote server.
1903 static void toremote(int argc, char *argv[])
1905 char *src, *targ, *host, *user;
1909 targ = argv[argc - 1];
1911 /* Separate host from filename */
1915 bump("targ == NULL in toremote()");
1919 /* Substitute "." for emtpy target */
1921 /* Separate host and username */
1923 host = strrchr(host, '@');
1934 if (colon(argv[0]) != NULL)
1935 bump("%s: Remote to remote not supported", argv[0]);
1937 wc_type = test_wildcard(argv[0], 1);
1938 if (wc_type == WCTYPE_NONEXISTENT)
1939 bump("%s: No such file or directory\n", argv[0]);
1940 else if (wc_type == WCTYPE_WILDCARD)
1941 targetshouldbedirectory = 1;
1944 cmd = dupprintf("scp%s%s%s%s -t %s",
1945 verbose ? " -v" : "",
1946 recursive ? " -r" : "",
1947 preserve ? " -p" : "",
1948 targetshouldbedirectory ? " -d" : "", targ);
1949 do_cmd(host, user, cmd);
1952 scp_source_setup(targ, targetshouldbedirectory);
1954 for (i = 0; i < argc - 1; i++) {
1956 if (colon(src) != NULL) {
1957 tell_user(stderr, "%s: Remote to remote not supported\n", src);
1962 wc_type = test_wildcard(src, 1);
1963 if (wc_type == WCTYPE_NONEXISTENT) {
1964 run_err("%s: No such file or directory", src);
1966 } else if (wc_type == WCTYPE_FILENAME) {
1970 WildcardMatcher *wc;
1973 wc = begin_wildcard_matching(src);
1975 run_err("%s: No such file or directory", src);
1979 while ((filename = wildcard_get_filename(wc)) != NULL) {
1984 finish_wildcard_matching(wc);
1990 * We will copy files from a remote server to the local machine.
1992 static void tolocal(int argc, char *argv[])
1994 char *src, *targ, *host, *user;
1998 bump("More than one remote source not supported");
2003 /* Separate host from filename */
2007 bump("Local to local copy not supported");
2011 /* Substitute "." for empty filename */
2013 /* Separate username and hostname */
2015 host = strrchr(host, '@');
2025 cmd = dupprintf("scp%s%s%s%s -f %s",
2026 verbose ? " -v" : "",
2027 recursive ? " -r" : "",
2028 preserve ? " -p" : "",
2029 targetshouldbedirectory ? " -d" : "", src);
2030 do_cmd(host, user, cmd);
2033 if (scp_sink_setup(src, preserve, recursive))
2040 * We will issue a list command to get a remote directory.
2042 static void get_dir_list(int argc, char *argv[])
2044 char *src, *host, *user;
2050 /* Separate host from filename */
2054 bump("Local to local copy not supported");
2058 /* Substitute "." for empty filename */
2060 /* Separate username and hostname */
2062 host = strrchr(host, '@');
2072 cmd = snewn(4 * strlen(src) + 100, char);
2073 strcpy(cmd, "ls -la '");
2074 p = cmd + strlen(cmd);
2075 for (q = src; *q; q++) {
2088 do_cmd(host, user, cmd);
2092 scp_sftp_listdir(src);
2094 while (ssh_scp_recv((unsigned char *) &c, 1) > 0)
2095 tell_char(stdout, c);
2100 * Short description of parameters.
2102 static void usage(void)
2104 printf("PuTTY Secure Copy client\n");
2105 printf("%s\n", ver);
2106 printf("Usage: pscp [options] [user@]host:source target\n");
2108 (" pscp [options] source [source...] [user@]host:target\n");
2109 printf(" pscp [options] -ls [user@]host:filespec\n");
2110 printf("Options:\n");
2111 printf(" -p preserve file attributes\n");
2112 printf(" -q quiet, don't show statistics\n");
2113 printf(" -r copy directories recursively\n");
2114 printf(" -v show verbose messages\n");
2115 printf(" -load sessname Load settings from saved session\n");
2116 printf(" -P port connect to specified port\n");
2117 printf(" -l user connect with specified username\n");
2118 printf(" -pw passw login with specified password\n");
2119 printf(" -1 -2 force use of particular SSH protocol version\n");
2120 printf(" -C enable compression\n");
2121 printf(" -i key private key file for authentication\n");
2122 printf(" -batch disable all interactive prompts\n");
2123 printf(" -unsafe allow server-side wildcards (DANGEROUS)\n");
2124 printf(" -V print version information\n");
2125 printf(" -sftp force use of SFTP protocol\n");
2126 printf(" -scp force use of SCP protocol\n");
2129 * -gui is an internal option, used by GUI front ends to get
2130 * pscp to pass progress reports back to them. It's not an
2131 * ordinary user-accessible option, so it shouldn't be part of
2132 * the command-line help. The only people who need to know
2133 * about it are programmers, and they can read the source.
2136 (" -gui hWnd GUI mode with the windows handle for receiving messages\n");
2143 printf("pscp: %s\n", ver);
2147 void cmdline_error(char *p, ...)
2150 fprintf(stderr, "pscp: ");
2152 vfprintf(stderr, p, ap);
2154 fprintf(stderr, "\n try typing just \"pscp\" for help\n");
2159 * Main program. (Called `psftp_main' because it gets called from
2160 * *sftp.c; bit silly, I know, but it had to be called _something_.)
2162 int psftp_main(int argc, char *argv[])
2166 default_protocol = PROT_TELNET;
2169 #ifdef FLAG_SYNCAGENT
2173 cmdline_tooltype = TOOLTYPE_FILETRANSFER;
2174 ssh_get_line = &console_get_line;
2177 /* Load Default Settings before doing anything else. */
2178 do_defaults(NULL, &cfg);
2179 loaded_session = FALSE;
2181 for (i = 1; i < argc; i++) {
2183 if (argv[i][0] != '-')
2185 ret = cmdline_process_param(argv[i], i+1<argc?argv[i+1]:NULL, 1, &cfg);
2187 cmdline_error("option \"%s\" requires an argument", argv[i]);
2188 } else if (ret == 2) {
2189 i++; /* skip next argument */
2190 } else if (ret == 1) {
2191 /* We have our own verbosity in addition to `flags'. */
2192 if (flags & FLAG_VERBOSE)
2194 } else if (strcmp(argv[i], "-r") == 0) {
2196 } else if (strcmp(argv[i], "-p") == 0) {
2198 } else if (strcmp(argv[i], "-q") == 0) {
2200 } else if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "-?") == 0) {
2202 } else if (strcmp(argv[i], "-V") == 0) {
2204 } else if (strcmp(argv[i], "-gui") == 0 && i + 1 < argc) {
2205 gui_enable(argv[++i]);
2207 console_batch_mode = TRUE;
2208 } else if (strcmp(argv[i], "-ls") == 0) {
2210 } else if (strcmp(argv[i], "-batch") == 0) {
2211 console_batch_mode = 1;
2212 } else if (strcmp(argv[i], "-unsafe") == 0) {
2213 scp_unsafe_mode = 1;
2214 } else if (strcmp(argv[i], "-sftp") == 0) {
2215 try_scp = 0; try_sftp = 1;
2216 } else if (strcmp(argv[i], "-scp") == 0) {
2217 try_scp = 1; try_sftp = 0;
2218 } else if (strcmp(argv[i], "--") == 0) {
2222 cmdline_error("unknown option \"%s\"", argv[i]);
2232 get_dir_list(argc, argv);
2239 targetshouldbedirectory = 1;
2241 if (colon(argv[argc - 1]) != NULL)
2242 toremote(argc, argv);
2244 tolocal(argc, argv);
2247 if (back != NULL && back->socket(backhandle) != NULL) {
2249 back->special(backhandle, TS_EOF);
2250 ssh_scp_recv((unsigned char *) &ch, 1);
2255 gui_send_errcount(list, errs);
2258 console_provide_logctx(NULL);
2259 back->free(backhandle);
2263 return (errs == 0 ? 0 : 1);