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;
44 static int uploading = 0;
47 static void *backhandle;
51 static void source(char *src);
52 static void rsource(char *src);
53 static void sink(char *targ, char *src);
55 const char *const appname = "PSCP";
58 * The maximum amount of queued data we accept before we stop and
59 * wait for the server to process some.
61 #define MAX_SCP_BUFSIZE 16384
63 void ldisc_echoedit_update(void *handle) { }
65 static void tell_char(FILE * stream, char c)
70 static void tell_str(FILE * stream, char *str)
74 for (i = 0; i < strlen(str); ++i)
75 tell_char(stream, str[i]);
78 static void tell_user(FILE * stream, char *fmt, ...)
83 str = dupvprintf(fmt, ap);
85 str2 = dupcat(str, "\n", NULL);
87 tell_str(stream, str2);
92 * Print an error message and perform a fatal exit.
94 void fatalbox(char *fmt, ...)
99 str = dupvprintf(fmt, ap);
100 str2 = dupcat("Fatal: ", str, "\n", NULL);
103 tell_str(stderr, str2);
109 void modalfatalbox(char *fmt, ...)
114 str = dupvprintf(fmt, ap);
115 str2 = dupcat("Fatal: ", str, "\n", NULL);
118 tell_str(stderr, str2);
124 void nonfatal(char *fmt, ...)
129 str = dupvprintf(fmt, ap);
130 str2 = dupcat("Error: ", str, "\n", NULL);
133 tell_str(stderr, str2);
137 void connection_fatal(void *frontend, char *fmt, ...)
142 str = dupvprintf(fmt, ap);
143 str2 = dupcat("Fatal: ", str, "\n", NULL);
146 tell_str(stderr, str2);
154 * In pscp, all agent requests should be synchronous, so this is a
157 void agent_schedule_callback(void (*callback)(void *, void *, int),
158 void *callback_ctx, void *data, int len)
160 assert(!"We shouldn't be here");
164 * Receive a block of data from the SSH link. Block until all data
167 * To do this, we repeatedly call the SSH protocol module, with our
168 * own trap in from_backend() to catch the data that comes back. We
169 * do this until we have enough data.
172 static unsigned char *outptr; /* where to put the data */
173 static unsigned outlen; /* how much data required */
174 static unsigned char *pending = NULL; /* any spare data */
175 static unsigned pendlen = 0, pendsize = 0; /* length and phys. size of buffer */
176 int from_backend(void *frontend, int is_stderr, const char *data, int datalen)
178 unsigned char *p = (unsigned char *) data;
179 unsigned len = (unsigned) datalen;
182 * stderr data is just spouted to local stderr and otherwise
187 if (fwrite(data, 1, len, stderr) < len)
192 if ((outlen > 0) && (len > 0)) {
193 unsigned used = outlen;
196 memcpy(outptr, p, used);
204 if (pendsize < pendlen + len) {
205 pendsize = pendlen + len + 4096;
206 pending = sresize(pending, pendsize, unsigned char);
208 memcpy(pending + pendlen, p, len);
214 int from_backend_untrusted(void *frontend_handle, const char *data, int len)
217 * No "untrusted" output should get here (the way the code is
218 * currently, it's all diverted by FLAG_STDERR).
220 assert(!"Unexpected call to from_backend_untrusted()");
221 return 0; /* not reached */
223 int from_backend_eof(void *frontend)
226 * We usually expect to be the party deciding when to close the
227 * connection, so if we see EOF before we sent it ourselves, we
228 * should panic. The exception is if we're using old-style scp and
229 * downloading rather than uploading.
231 if ((using_sftp || uploading) && !sent_eof) {
232 connection_fatal(frontend,
233 "Received unexpected end-of-file from server");
237 static int ssh_scp_recv(unsigned char *buf, int len)
243 * See if the pending-input block contains some of what we
247 unsigned pendused = pendlen;
248 if (pendused > outlen)
250 memcpy(outptr, pending, pendused);
251 memmove(pending, pending + pendused, pendlen - pendused);
265 if (back->exitcode(backhandle) >= 0 || ssh_sftp_loop_iteration() < 0)
273 * Loop through the ssh connection and authentication process.
275 static void ssh_scp_init(void)
277 while (!back->sendok(backhandle)) {
278 if (back->exitcode(backhandle) >= 0) {
282 if (ssh_sftp_loop_iteration() < 0) {
288 /* Work out which backend we ended up using. */
289 if (!ssh_fallback_cmd(backhandle))
290 using_sftp = main_cmd_is_sftp;
292 using_sftp = fallback_cmd_is_sftp;
296 tell_user(stderr, "Using SFTP");
298 tell_user(stderr, "Using SCP1");
303 * Print an error message and exit after closing the SSH link.
305 static void bump(char *fmt, ...)
310 str = dupvprintf(fmt, ap);
312 str2 = dupcat(str, "\n", NULL);
314 tell_str(stderr, str2);
318 if (back != NULL && back->connected(backhandle)) {
320 back->special(backhandle, TS_EOF);
322 ssh_scp_recv((unsigned char *) &ch, 1);
329 * Wait for the reply to a single SFTP request. Parallels the same
330 * function in psftp.c (but isn't centralised into sftp.c because the
331 * latter module handles SFTP only and shouldn't assume that SFTP is
332 * the only thing going on by calling connection_fatal).
334 struct sftp_packet *sftp_wait_for_reply(struct sftp_request *req)
336 struct sftp_packet *pktin;
337 struct sftp_request *rreq;
342 connection_fatal(NULL, "did not receive SFTP response packet "
344 rreq = sftp_find_request(pktin);
346 connection_fatal(NULL, "unable to understand SFTP response packet "
347 "from server: %s", fxp_error());
352 * Open an SSH connection to user@host and execute cmd.
354 static void do_cmd(char *host, char *user, char *cmd)
360 if (host == NULL || host[0] == '\0')
361 bump("Empty host name");
364 * Remove a colon suffix.
366 host[host_strcspn(host, ":")] = '\0';
369 * If we haven't loaded session details already (e.g., from -load),
370 * try looking for a session called "host".
372 if (!loaded_session) {
373 /* Try to load settings for `host' into a temporary config */
374 Conf *conf2 = conf_new();
375 conf_set_str(conf2, CONF_host, "");
376 do_defaults(host, conf2);
377 if (conf_get_str(conf2, CONF_host)[0] != '\0') {
378 /* Settings present and include hostname */
379 /* Re-load data into the real config. */
380 do_defaults(host, conf);
382 /* Session doesn't exist or mention a hostname. */
383 /* Use `host' as a bare hostname. */
384 conf_set_str(conf, CONF_host, host);
387 /* Patch in hostname `host' to session details. */
388 conf_set_str(conf, CONF_host, host);
392 * Force use of SSH. (If they got the protocol wrong we assume the
393 * port is useless too.)
395 if (conf_get_int(conf, CONF_protocol) != PROT_SSH) {
396 conf_set_int(conf, CONF_protocol, PROT_SSH);
397 conf_set_int(conf, CONF_port, 22);
401 * Enact command-line overrides.
403 cmdline_run_saved(conf);
406 * Muck about with the hostname in various ways.
409 char *hostbuf = dupstr(conf_get_str(conf, CONF_host));
410 char *host = hostbuf;
414 * Trim leading whitespace.
416 host += strspn(host, " \t");
419 * See if host is of the form user@host, and separate out
420 * the username if so.
422 if (host[0] != '\0') {
423 char *atsign = strrchr(host, '@');
426 conf_set_str(conf, CONF_username, host);
432 * Remove any remaining whitespace.
437 if (*q != ' ' && *q != '\t')
443 conf_set_str(conf, CONF_host, hostbuf);
448 if (user != NULL && user[0] != '\0') {
449 conf_set_str(conf, CONF_username, user);
450 } else if (conf_get_str(conf, CONF_username)[0] == '\0') {
451 user = get_username();
453 bump("Empty user name");
456 tell_user(stderr, "Guessing user name: %s", user);
457 conf_set_str(conf, CONF_username, user);
463 * Disable scary things which shouldn't be enabled for simple
464 * things like SCP and SFTP: agent forwarding, port forwarding,
467 conf_set_int(conf, CONF_x11_forward, 0);
468 conf_set_int(conf, CONF_agentfwd, 0);
469 conf_set_int(conf, CONF_ssh_simple, TRUE);
472 while ((key = conf_get_str_nthstrkey(conf, CONF_portfwd, 0)) != NULL)
473 conf_del_str_str(conf, CONF_portfwd, key);
477 * Set up main and possibly fallback command depending on
478 * options specified by user.
479 * Attempt to start the SFTP subsystem as a first choice,
480 * falling back to the provided scp command if that fails.
482 conf_set_str(conf, CONF_remote_cmd2, "");
484 /* First choice is SFTP subsystem. */
485 main_cmd_is_sftp = 1;
486 conf_set_str(conf, CONF_remote_cmd, "sftp");
487 conf_set_int(conf, CONF_ssh_subsys, TRUE);
489 /* Fallback is to use the provided scp command. */
490 fallback_cmd_is_sftp = 0;
491 conf_set_str(conf, CONF_remote_cmd2, cmd);
492 conf_set_int(conf, CONF_ssh_subsys2, FALSE);
494 /* Since we're not going to try SCP, we may as well try
495 * harder to find an SFTP server, since in the current
496 * implementation we have a spare slot. */
497 fallback_cmd_is_sftp = 1;
498 /* see psftp.c for full explanation of this kludge */
499 conf_set_str(conf, CONF_remote_cmd2,
500 "test -x /usr/lib/sftp-server &&"
501 " exec /usr/lib/sftp-server\n"
502 "test -x /usr/local/lib/sftp-server &&"
503 " exec /usr/local/lib/sftp-server\n"
505 conf_set_int(conf, CONF_ssh_subsys2, FALSE);
508 /* Don't try SFTP at all; just try the scp command. */
509 main_cmd_is_sftp = 0;
510 conf_set_str(conf, CONF_remote_cmd, cmd);
511 conf_set_int(conf, CONF_ssh_subsys, FALSE);
513 conf_set_int(conf, CONF_nopty, TRUE);
517 err = back->init(NULL, &backhandle, conf,
518 conf_get_str(conf, CONF_host),
519 conf_get_int(conf, CONF_port),
521 conf_get_int(conf, CONF_tcp_keepalives));
523 bump("ssh_init: %s", err);
524 logctx = log_init(NULL, conf);
525 back->provide_logctx(backhandle, logctx);
526 console_provide_logctx(logctx);
528 if (verbose && realhost != NULL && errs == 0)
529 tell_user(stderr, "Connected to %s", realhost);
534 * Update statistic information about current file.
536 static void print_stats(char *name, uint64 size, uint64 done,
537 time_t start, time_t now)
548 elap = (unsigned long) difftime(now, start);
551 ratebs = (float) (uint64_to_double(done) / elap);
553 ratebs = (float) uint64_to_double(done);
556 eta = (unsigned long) (uint64_to_double(uint64_subtract(size, done)));
558 eta = (unsigned long)
559 ((uint64_to_double(uint64_subtract(size, done)) / ratebs));
562 etastr = dupprintf("%02ld:%02ld:%02ld",
563 eta / 3600, (eta % 3600) / 60, eta % 60);
565 donedbl = uint64_to_double(done);
566 sizedbl = uint64_to_double(size);
567 pct = (int) (100 * (donedbl * 1.0 / sizedbl));
571 /* divide by 1024 to provide kB */
572 uint64_decimal(uint64_shift_right(done, 10), donekb);
573 len = printf("\r%-25.25s | %s kB | %5.1f kB/s | ETA: %8s | %3d%%",
575 donekb, ratebs / 1024.0, etastr, pct);
576 if (len < prev_stats_len)
577 printf("%*s", prev_stats_len - len, "");
578 prev_stats_len = len;
580 if (uint64_compare(done, size) == 0)
590 * Find a colon in str and return a pointer to the colon.
591 * This is used to separate hostname from filename.
593 static char *colon(char *str)
595 /* We ignore a leading colon, since the hostname cannot be
596 empty. We also ignore a colon as second character because
597 of filenames like f:myfile.txt. */
598 if (str[0] == '\0' || str[0] == ':' ||
599 (str[0] != '[' && str[1] == ':'))
601 str += host_strcspn(str, ":/\\");
609 * Return a pointer to the portion of str that comes after the last
610 * slash (or backslash or colon, if `local' is TRUE).
612 static char *stripslashes(char *str, int local)
617 p = strchr(str, ':');
621 p = strrchr(str, '/');
625 p = strrchr(str, '\\');
633 * Determine whether a string is entirely composed of dots.
635 static int is_dots(char *str)
637 return str[strspn(str, ".")] == '\0';
641 * Wait for a response from the other side.
642 * Return 0 if ok, -1 if error.
644 static int response(void)
646 char ch, resp, rbuf[2048];
649 if (ssh_scp_recv((unsigned char *) &resp, 1) <= 0)
650 bump("Lost connection");
660 case 2: /* fatal error */
662 if (ssh_scp_recv((unsigned char *) &ch, 1) <= 0)
663 bump("Protocol error: Lost connection");
665 } while (p < sizeof(rbuf) && ch != '\n');
668 tell_user(stderr, "%s", rbuf);
676 int sftp_recvdata(char *buf, int len)
678 return ssh_scp_recv((unsigned char *) buf, len);
680 int sftp_senddata(char *buf, int len)
682 back->send(backhandle, buf, len);
686 /* ----------------------------------------------------------------------
687 * sftp-based replacement for the hacky `pscp -ls'.
689 static int sftp_ls_compare(const void *av, const void *bv)
691 const struct fxp_name *a = (const struct fxp_name *) av;
692 const struct fxp_name *b = (const struct fxp_name *) bv;
693 return strcmp(a->filename, b->filename);
695 void scp_sftp_listdir(char *dirname)
697 struct fxp_handle *dirh;
698 struct fxp_names *names;
699 struct fxp_name *ournames;
700 struct sftp_packet *pktin;
701 struct sftp_request *req;
702 int nnames, namesize;
706 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
711 printf("Listing directory %s\n", dirname);
713 req = fxp_opendir_send(dirname);
714 pktin = sftp_wait_for_reply(req);
715 dirh = fxp_opendir_recv(pktin, req);
718 printf("Unable to open %s: %s\n", dirname, fxp_error());
720 nnames = namesize = 0;
725 req = fxp_readdir_send(dirh);
726 pktin = sftp_wait_for_reply(req);
727 names = fxp_readdir_recv(pktin, req);
730 if (fxp_error_type() == SSH_FX_EOF)
732 printf("Reading directory %s: %s\n", dirname, fxp_error());
735 if (names->nnames == 0) {
736 fxp_free_names(names);
740 if (nnames + names->nnames >= namesize) {
741 namesize += names->nnames + 128;
742 ournames = sresize(ournames, namesize, struct fxp_name);
745 for (i = 0; i < names->nnames; i++)
746 ournames[nnames++] = names->names[i];
747 names->nnames = 0; /* prevent free_names */
748 fxp_free_names(names);
750 req = fxp_close_send(dirh);
751 pktin = sftp_wait_for_reply(req);
752 fxp_close_recv(pktin, req);
755 * Now we have our filenames. Sort them by actual file
756 * name, and then output the longname parts.
759 qsort(ournames, nnames, sizeof(*ournames), sftp_ls_compare);
764 for (i = 0; i < nnames; i++)
765 printf("%s\n", ournames[i].longname);
771 /* ----------------------------------------------------------------------
772 * Helper routines that contain the actual SCP protocol elements,
773 * implemented both as SCP1 and SFTP.
776 static struct scp_sftp_dirstack {
777 struct scp_sftp_dirstack *next;
778 struct fxp_name *names;
779 int namepos, namelen;
782 int matched_something; /* wildcard match set was non-empty */
783 } *scp_sftp_dirstack_head;
784 static char *scp_sftp_remotepath, *scp_sftp_currentname;
785 static char *scp_sftp_wildcard;
786 static int scp_sftp_targetisdir, scp_sftp_donethistarget;
787 static int scp_sftp_preserve, scp_sftp_recursive;
788 static unsigned long scp_sftp_mtime, scp_sftp_atime;
789 static int scp_has_times;
790 static struct fxp_handle *scp_sftp_filehandle;
791 static struct fxp_xfer *scp_sftp_xfer;
792 static uint64 scp_sftp_fileoffset;
794 int scp_source_setup(char *target, int shouldbedir)
798 * Find out whether the target filespec is in fact a
801 struct sftp_packet *pktin;
802 struct sftp_request *req;
803 struct fxp_attrs attrs;
807 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
812 req = fxp_stat_send(target);
813 pktin = sftp_wait_for_reply(req);
814 ret = fxp_stat_recv(pktin, req, &attrs);
816 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS))
817 scp_sftp_targetisdir = 0;
819 scp_sftp_targetisdir = (attrs.permissions & 0040000) != 0;
821 if (shouldbedir && !scp_sftp_targetisdir) {
822 bump("pscp: remote filespec %s: not a directory\n", target);
825 scp_sftp_remotepath = dupstr(target);
834 int scp_send_errmsg(char *str)
837 /* do nothing; we never need to send our errors to the server */
839 back->send(backhandle, "\001", 1);/* scp protocol error prefix */
840 back->send(backhandle, str, strlen(str));
842 return 0; /* can't fail */
845 int scp_send_filetimes(unsigned long mtime, unsigned long atime)
848 scp_sftp_mtime = mtime;
849 scp_sftp_atime = atime;
854 sprintf(buf, "T%lu 0 %lu 0\n", mtime, atime);
855 back->send(backhandle, buf, strlen(buf));
860 int scp_send_filename(char *name, uint64 size, int permissions)
864 struct sftp_packet *pktin;
865 struct sftp_request *req;
866 struct fxp_attrs attrs;
868 if (scp_sftp_targetisdir) {
869 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
871 fullname = dupstr(scp_sftp_remotepath);
875 PUT_PERMISSIONS(attrs, permissions);
877 req = fxp_open_send(fullname,
878 SSH_FXF_WRITE | SSH_FXF_CREAT | SSH_FXF_TRUNC,
880 pktin = sftp_wait_for_reply(req);
881 scp_sftp_filehandle = fxp_open_recv(pktin, req);
883 if (!scp_sftp_filehandle) {
884 tell_user(stderr, "pscp: unable to open %s: %s",
885 fullname, fxp_error());
890 scp_sftp_fileoffset = uint64_make(0, 0);
891 scp_sftp_xfer = xfer_upload_init(scp_sftp_filehandle,
892 scp_sftp_fileoffset);
898 uint64_decimal(size, sizestr);
901 sprintf(buf, "C%04o %s ", (int)(permissions & 07777), sizestr);
902 back->send(backhandle, buf, strlen(buf));
903 back->send(backhandle, name, strlen(name));
904 back->send(backhandle, "\n", 1);
909 int scp_send_filedata(char *data, int len)
913 struct sftp_packet *pktin;
915 if (!scp_sftp_filehandle) {
919 while (!xfer_upload_ready(scp_sftp_xfer)) {
921 ret = xfer_upload_gotpkt(scp_sftp_xfer, pktin);
923 tell_user(stderr, "error while writing: %s", fxp_error());
924 if (ret == INT_MIN) /* pktin not even freed */
931 xfer_upload_data(scp_sftp_xfer, data, len);
933 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, len);
936 int bufsize = back->send(backhandle, data, len);
939 * If the network transfer is backing up - that is, the
940 * remote site is not accepting data as fast as we can
941 * produce it - then we must loop on network events until
942 * we have space in the buffer again.
944 while (bufsize > MAX_SCP_BUFSIZE) {
945 if (ssh_sftp_loop_iteration() < 0)
947 bufsize = back->sendbuffer(backhandle);
954 int scp_send_finish(void)
957 struct fxp_attrs attrs;
958 struct sftp_packet *pktin;
959 struct sftp_request *req;
962 while (!xfer_done(scp_sftp_xfer)) {
964 ret = xfer_upload_gotpkt(scp_sftp_xfer, pktin);
966 tell_user(stderr, "error while writing: %s", fxp_error());
967 if (ret == INT_MIN) /* pktin not even freed */
973 xfer_cleanup(scp_sftp_xfer);
975 if (!scp_sftp_filehandle) {
979 attrs.flags = SSH_FILEXFER_ATTR_ACMODTIME;
980 attrs.atime = scp_sftp_atime;
981 attrs.mtime = scp_sftp_mtime;
982 req = fxp_fsetstat_send(scp_sftp_filehandle, attrs);
983 pktin = sftp_wait_for_reply(req);
984 ret = fxp_fsetstat_recv(pktin, req);
986 tell_user(stderr, "unable to set file times: %s", fxp_error());
990 req = fxp_close_send(scp_sftp_filehandle);
991 pktin = sftp_wait_for_reply(req);
992 fxp_close_recv(pktin, req);
996 back->send(backhandle, "", 1);
1001 char *scp_save_remotepath(void)
1004 return scp_sftp_remotepath;
1009 void scp_restore_remotepath(char *data)
1012 scp_sftp_remotepath = data;
1015 int scp_send_dirname(char *name, int modes)
1020 struct fxp_attrs attrs;
1021 struct sftp_packet *pktin;
1022 struct sftp_request *req;
1025 if (scp_sftp_targetisdir) {
1026 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
1028 fullname = dupstr(scp_sftp_remotepath);
1032 * We don't worry about whether we managed to create the
1033 * directory, because if it exists already it's OK just to
1034 * use it. Instead, we will stat it afterwards, and if it
1035 * exists and is a directory we will assume we were either
1036 * successful or it didn't matter.
1038 req = fxp_mkdir_send(fullname);
1039 pktin = sftp_wait_for_reply(req);
1040 ret = fxp_mkdir_recv(pktin, req);
1045 err = "server reported no error";
1047 req = fxp_stat_send(fullname);
1048 pktin = sftp_wait_for_reply(req);
1049 ret = fxp_stat_recv(pktin, req, &attrs);
1051 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) ||
1052 !(attrs.permissions & 0040000)) {
1053 tell_user(stderr, "unable to create directory %s: %s",
1060 scp_sftp_remotepath = fullname;
1065 sprintf(buf, "D%04o 0 ", modes);
1066 back->send(backhandle, buf, strlen(buf));
1067 back->send(backhandle, name, strlen(name));
1068 back->send(backhandle, "\n", 1);
1073 int scp_send_enddir(void)
1076 sfree(scp_sftp_remotepath);
1079 back->send(backhandle, "E\n", 2);
1085 * Yes, I know; I have an scp_sink_setup _and_ an scp_sink_init.
1086 * That's bad. The difference is that scp_sink_setup is called once
1087 * right at the start, whereas scp_sink_init is called to
1088 * initialise every level of recursion in the protocol.
1090 int scp_sink_setup(char *source, int preserve, int recursive)
1096 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
1101 * It's possible that the source string we've been given
1102 * contains a wildcard. If so, we must split the directory
1103 * away from the wildcard itself (throwing an error if any
1104 * wildcardness comes before the final slash) and arrange
1105 * things so that a dirstack entry will be set up.
1107 newsource = snewn(1+strlen(source), char);
1108 if (!wc_unescape(newsource, source)) {
1109 /* Yes, here we go; it's a wildcard. Bah. */
1110 char *dupsource, *lastpart, *dirpart, *wildcard;
1114 dupsource = dupstr(source);
1115 lastpart = stripslashes(dupsource, 0);
1116 wildcard = dupstr(lastpart);
1118 if (*dupsource && dupsource[1]) {
1120 * The remains of dupsource are at least two
1121 * characters long, meaning the pathname wasn't
1122 * empty or just `/'. Hence, we remove the trailing
1125 lastpart[-1] = '\0';
1126 } else if (!*dupsource) {
1128 * The remains of dupsource are _empty_ - the whole
1129 * pathname was a wildcard. Hence we need to
1130 * replace it with ".".
1133 dupsource = dupstr(".");
1137 * Now we have separated our string into dupsource (the
1138 * directory part) and wildcard. Both of these will
1139 * need freeing at some point. Next step is to remove
1140 * wildcard escapes from the directory part, throwing
1141 * an error if it contains a real wildcard.
1143 dirpart = snewn(1+strlen(dupsource), char);
1144 if (!wc_unescape(dirpart, dupsource)) {
1145 tell_user(stderr, "%s: multiple-level wildcards unsupported",
1155 * Now we have dirpart (unescaped, ie a valid remote
1156 * path), and wildcard (a wildcard). This will be
1157 * sufficient to arrange a dirstack entry.
1159 scp_sftp_remotepath = dirpart;
1160 scp_sftp_wildcard = wildcard;
1163 scp_sftp_remotepath = newsource;
1164 scp_sftp_wildcard = NULL;
1166 scp_sftp_preserve = preserve;
1167 scp_sftp_recursive = recursive;
1168 scp_sftp_donethistarget = 0;
1169 scp_sftp_dirstack_head = NULL;
1174 int scp_sink_init(void)
1177 back->send(backhandle, "", 1);
1182 #define SCP_SINK_FILE 1
1183 #define SCP_SINK_DIR 2
1184 #define SCP_SINK_ENDDIR 3
1185 #define SCP_SINK_RETRY 4 /* not an action; just try again */
1186 struct scp_sink_action {
1187 int action; /* FILE, DIR, ENDDIR */
1188 char *buf; /* will need freeing after use */
1189 char *name; /* filename or dirname (not ENDDIR) */
1190 long permissions; /* access permissions (not ENDDIR) */
1191 uint64 size; /* file size (not ENDDIR) */
1192 int settime; /* 1 if atime and mtime are filled */
1193 unsigned long atime, mtime; /* access times for the file */
1196 int scp_get_sink_action(struct scp_sink_action *act)
1200 int must_free_fname;
1201 struct fxp_attrs attrs;
1202 struct sftp_packet *pktin;
1203 struct sftp_request *req;
1206 if (!scp_sftp_dirstack_head) {
1207 if (!scp_sftp_donethistarget) {
1209 * Simple case: we are only dealing with one file.
1211 fname = scp_sftp_remotepath;
1212 must_free_fname = 0;
1213 scp_sftp_donethistarget = 1;
1216 * Even simpler case: one file _which we've done_.
1217 * Return 1 (finished).
1223 * We're now in the middle of stepping through a list
1224 * of names returned from fxp_readdir(); so let's carry
1227 struct scp_sftp_dirstack *head = scp_sftp_dirstack_head;
1228 while (head->namepos < head->namelen &&
1229 (is_dots(head->names[head->namepos].filename) ||
1231 !wc_match(head->wildcard,
1232 head->names[head->namepos].filename))))
1233 head->namepos++; /* skip . and .. */
1234 if (head->namepos < head->namelen) {
1235 head->matched_something = 1;
1236 fname = dupcat(head->dirpath, "/",
1237 head->names[head->namepos++].filename,
1239 must_free_fname = 1;
1242 * We've come to the end of the list; pop it off
1243 * the stack and return an ENDDIR action (or RETRY
1244 * if this was a wildcard match).
1246 if (head->wildcard) {
1247 act->action = SCP_SINK_RETRY;
1248 if (!head->matched_something) {
1249 tell_user(stderr, "pscp: wildcard '%s' matched "
1250 "no files", head->wildcard);
1253 sfree(head->wildcard);
1256 act->action = SCP_SINK_ENDDIR;
1259 sfree(head->dirpath);
1261 scp_sftp_dirstack_head = head->next;
1269 * Now we have a filename. Stat it, and see if it's a file
1272 req = fxp_stat_send(fname);
1273 pktin = sftp_wait_for_reply(req);
1274 ret = fxp_stat_recv(pktin, req, &attrs);
1276 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS)) {
1277 tell_user(stderr, "unable to identify %s: %s", fname,
1278 ret ? "file type not supplied" : fxp_error());
1279 if (must_free_fname) sfree(fname);
1284 if (attrs.permissions & 0040000) {
1285 struct scp_sftp_dirstack *newitem;
1286 struct fxp_handle *dirhandle;
1287 int nnames, namesize;
1288 struct fxp_name *ournames;
1289 struct fxp_names *names;
1292 * It's a directory. If we're not in recursive mode,
1293 * this merits a complaint (which is fatal if the name
1294 * was specified directly, but not if it was matched by
1297 * We skip this complaint completely if
1298 * scp_sftp_wildcard is set, because that's an
1299 * indication that we're not actually supposed to
1300 * _recursively_ transfer the dir, just scan it for
1301 * things matching the wildcard.
1303 if (!scp_sftp_recursive && !scp_sftp_wildcard) {
1304 tell_user(stderr, "pscp: %s: is a directory", fname);
1306 if (must_free_fname) sfree(fname);
1307 if (scp_sftp_dirstack_head) {
1308 act->action = SCP_SINK_RETRY;
1316 * Otherwise, the fun begins. We must fxp_opendir() the
1317 * directory, slurp the filenames into memory, return
1318 * SCP_SINK_DIR (unless this is a wildcard match), and
1319 * set targetisdir. The next time we're called, we will
1320 * run through the list of filenames one by one,
1321 * matching them against a wildcard if present.
1323 * If targetisdir is _already_ set (meaning we're
1324 * already in the middle of going through another such
1325 * list), we must push the other (target,namelist) pair
1328 req = fxp_opendir_send(fname);
1329 pktin = sftp_wait_for_reply(req);
1330 dirhandle = fxp_opendir_recv(pktin, req);
1333 tell_user(stderr, "pscp: unable to open directory %s: %s",
1334 fname, fxp_error());
1335 if (must_free_fname) sfree(fname);
1339 nnames = namesize = 0;
1344 req = fxp_readdir_send(dirhandle);
1345 pktin = sftp_wait_for_reply(req);
1346 names = fxp_readdir_recv(pktin, req);
1348 if (names == NULL) {
1349 if (fxp_error_type() == SSH_FX_EOF)
1351 tell_user(stderr, "pscp: reading directory %s: %s",
1352 fname, fxp_error());
1354 req = fxp_close_send(dirhandle);
1355 pktin = sftp_wait_for_reply(req);
1356 fxp_close_recv(pktin, req);
1358 if (must_free_fname) sfree(fname);
1363 if (names->nnames == 0) {
1364 fxp_free_names(names);
1367 if (nnames + names->nnames >= namesize) {
1368 namesize += names->nnames + 128;
1369 ournames = sresize(ournames, namesize, struct fxp_name);
1371 for (i = 0; i < names->nnames; i++) {
1372 if (!strcmp(names->names[i].filename, ".") ||
1373 !strcmp(names->names[i].filename, "..")) {
1375 * . and .. are normal consequences of
1376 * reading a directory, and aren't worth
1377 * complaining about.
1379 } else if (!vet_filename(names->names[i].filename)) {
1380 tell_user(stderr, "ignoring potentially dangerous server-"
1381 "supplied filename '%s'",
1382 names->names[i].filename);
1384 ournames[nnames++] = names->names[i];
1386 names->nnames = 0; /* prevent free_names */
1387 fxp_free_names(names);
1389 req = fxp_close_send(dirhandle);
1390 pktin = sftp_wait_for_reply(req);
1391 fxp_close_recv(pktin, req);
1393 newitem = snew(struct scp_sftp_dirstack);
1394 newitem->next = scp_sftp_dirstack_head;
1395 newitem->names = ournames;
1396 newitem->namepos = 0;
1397 newitem->namelen = nnames;
1398 if (must_free_fname)
1399 newitem->dirpath = fname;
1401 newitem->dirpath = dupstr(fname);
1402 if (scp_sftp_wildcard) {
1403 newitem->wildcard = scp_sftp_wildcard;
1404 newitem->matched_something = 0;
1405 scp_sftp_wildcard = NULL;
1407 newitem->wildcard = NULL;
1409 scp_sftp_dirstack_head = newitem;
1411 if (newitem->wildcard) {
1412 act->action = SCP_SINK_RETRY;
1414 act->action = SCP_SINK_DIR;
1415 act->buf = dupstr(stripslashes(fname, 0));
1416 act->name = act->buf;
1417 act->size = uint64_make(0,0); /* duhh, it's a directory */
1418 act->permissions = 07777 & attrs.permissions;
1419 if (scp_sftp_preserve &&
1420 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1421 act->atime = attrs.atime;
1422 act->mtime = attrs.mtime;
1431 * It's a file. Return SCP_SINK_FILE.
1433 act->action = SCP_SINK_FILE;
1434 act->buf = dupstr(stripslashes(fname, 0));
1435 act->name = act->buf;
1436 if (attrs.flags & SSH_FILEXFER_ATTR_SIZE) {
1437 act->size = attrs.size;
1439 act->size = uint64_make(ULONG_MAX,ULONG_MAX); /* no idea */
1440 act->permissions = 07777 & attrs.permissions;
1441 if (scp_sftp_preserve &&
1442 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1443 act->atime = attrs.atime;
1444 act->mtime = attrs.mtime;
1448 if (must_free_fname)
1449 scp_sftp_currentname = fname;
1451 scp_sftp_currentname = dupstr(fname);
1466 if (ssh_scp_recv((unsigned char *) &ch, 1) <= 0)
1469 bump("Protocol error: Unexpected newline");
1473 if (ssh_scp_recv((unsigned char *) &ch, 1) <= 0)
1474 bump("Lost connection");
1477 act->buf = sresize(act->buf, bufsize, char);
1480 } while (ch != '\n');
1481 act->buf[i - 1] = '\0';
1483 case '\01': /* error */
1484 tell_user(stderr, "%s", act->buf);
1486 continue; /* go round again */
1487 case '\02': /* fatal error */
1488 bump("%s", act->buf);
1490 back->send(backhandle, "", 1);
1491 act->action = SCP_SINK_ENDDIR;
1494 if (sscanf(act->buf, "%ld %*d %ld %*d",
1495 &act->mtime, &act->atime) == 2) {
1497 back->send(backhandle, "", 1);
1498 continue; /* go round again */
1500 bump("Protocol error: Illegal time format");
1503 act->action = (action == 'C' ? SCP_SINK_FILE : SCP_SINK_DIR);
1506 bump("Protocol error: Expected control record");
1509 * We will go round this loop only once, unless we hit
1516 * If we get here, we must have seen SCP_SINK_FILE or
1522 if (sscanf(act->buf, "%lo %s %n", &act->permissions,
1524 bump("Protocol error: Illegal file descriptor format");
1525 act->size = uint64_from_decimal(sizestr);
1526 act->name = act->buf + i;
1532 int scp_accept_filexfer(void)
1535 struct sftp_packet *pktin;
1536 struct sftp_request *req;
1538 req = fxp_open_send(scp_sftp_currentname, SSH_FXF_READ, NULL);
1539 pktin = sftp_wait_for_reply(req);
1540 scp_sftp_filehandle = fxp_open_recv(pktin, req);
1542 if (!scp_sftp_filehandle) {
1543 tell_user(stderr, "pscp: unable to open %s: %s",
1544 scp_sftp_currentname, fxp_error());
1548 scp_sftp_fileoffset = uint64_make(0, 0);
1549 scp_sftp_xfer = xfer_download_init(scp_sftp_filehandle,
1550 scp_sftp_fileoffset);
1551 sfree(scp_sftp_currentname);
1554 back->send(backhandle, "", 1);
1555 return 0; /* can't fail */
1559 int scp_recv_filedata(char *data, int len)
1562 struct sftp_packet *pktin;
1566 xfer_download_queue(scp_sftp_xfer);
1567 pktin = sftp_recv();
1568 ret = xfer_download_gotpkt(scp_sftp_xfer, pktin);
1570 tell_user(stderr, "pscp: error while reading: %s", fxp_error());
1571 if (ret == INT_MIN) /* pktin not even freed */
1577 if (xfer_download_data(scp_sftp_xfer, &vbuf, &actuallen)) {
1579 * This assertion relies on the fact that the natural
1580 * block size used in the xfer manager is at most that
1581 * used in this module. I don't like crossing layers in
1582 * this way, but it'll do for now.
1584 assert(actuallen <= len);
1585 memcpy(data, vbuf, actuallen);
1590 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, actuallen);
1594 return ssh_scp_recv((unsigned char *) data, len);
1598 int scp_finish_filerecv(void)
1601 struct sftp_packet *pktin;
1602 struct sftp_request *req;
1605 * Ensure that xfer_done() will work correctly, so we can
1606 * clean up any outstanding requests from the file
1609 xfer_set_error(scp_sftp_xfer);
1610 while (!xfer_done(scp_sftp_xfer)) {
1614 pktin = sftp_recv();
1615 ret = xfer_download_gotpkt(scp_sftp_xfer, pktin);
1617 tell_user(stderr, "pscp: error while reading: %s", fxp_error());
1618 if (ret == INT_MIN) /* pktin not even freed */
1623 if (xfer_download_data(scp_sftp_xfer, &vbuf, &len))
1626 xfer_cleanup(scp_sftp_xfer);
1628 req = fxp_close_send(scp_sftp_filehandle);
1629 pktin = sftp_wait_for_reply(req);
1630 fxp_close_recv(pktin, req);
1633 back->send(backhandle, "", 1);
1638 /* ----------------------------------------------------------------------
1639 * Send an error message to the other side and to the screen.
1640 * Increment error counter.
1642 static void run_err(const char *fmt, ...)
1648 str = dupvprintf(fmt, ap);
1649 str2 = dupcat("pscp: ", str, "\n", NULL);
1651 scp_send_errmsg(str2);
1652 tell_user(stderr, "%s", str2);
1658 * Execute the source part of the SCP protocol.
1660 static void source(char *src)
1663 unsigned long mtime, atime;
1670 time_t stat_starttime, stat_lasttime;
1672 attr = file_type(src);
1673 if (attr == FILE_TYPE_NONEXISTENT ||
1674 attr == FILE_TYPE_WEIRD) {
1675 run_err("%s: %s file or directory", src,
1676 (attr == FILE_TYPE_WEIRD ? "Not a" : "No such"));
1680 if (attr == FILE_TYPE_DIRECTORY) {
1683 * Avoid . and .. directories.
1686 p = strrchr(src, '/');
1688 p = strrchr(src, '\\');
1693 if (!strcmp(p, ".") || !strcmp(p, ".."))
1694 /* skip . and .. */ ;
1698 run_err("%s: not a regular file", src);
1703 if ((last = strrchr(src, '/')) == NULL)
1707 if (strrchr(last, '\\') != NULL)
1708 last = strrchr(last, '\\') + 1;
1709 if (last == src && strchr(src, ':') != NULL)
1710 last = strchr(src, ':') + 1;
1712 f = open_existing_file(src, &size, &mtime, &atime, &permissions);
1714 run_err("%s: Cannot open file", src);
1718 if (scp_send_filetimes(mtime, atime)) {
1726 uint64_decimal(size, sizestr);
1727 tell_user(stderr, "Sending file %s, size=%s", last, sizestr);
1729 if (scp_send_filename(last, size, permissions)) {
1734 stat_bytes = uint64_make(0,0);
1735 stat_starttime = time(NULL);
1738 for (i = uint64_make(0,0);
1739 uint64_compare(i,size) < 0;
1740 i = uint64_add32(i,4096)) {
1741 char transbuf[4096];
1744 if (uint64_compare(uint64_add32(i, k),size) > 0) /* i + k > size */
1745 k = (uint64_subtract(size, i)).lo; /* k = size - i; */
1746 if ((j = read_from_file(f, transbuf, k)) != k) {
1749 bump("%s: Read error", src);
1751 if (scp_send_filedata(transbuf, k))
1752 bump("%s: Network error occurred", src);
1755 stat_bytes = uint64_add32(stat_bytes, k);
1756 if (time(NULL) != stat_lasttime ||
1757 (uint64_compare(uint64_add32(i, k), size) == 0)) {
1758 stat_lasttime = time(NULL);
1759 print_stats(last, size, stat_bytes,
1760 stat_starttime, stat_lasttime);
1767 (void) scp_send_finish();
1771 * Recursively send the contents of a directory.
1773 static void rsource(char *src)
1779 if ((last = strrchr(src, '/')) == NULL)
1783 if (strrchr(last, '\\') != NULL)
1784 last = strrchr(last, '\\') + 1;
1785 if (last == src && strchr(src, ':') != NULL)
1786 last = strchr(src, ':') + 1;
1788 /* maybe send filetime */
1790 save_target = scp_save_remotepath();
1793 tell_user(stderr, "Entering directory: %s", last);
1794 if (scp_send_dirname(last, 0755))
1797 dir = open_directory(src);
1800 while ((filename = read_filename(dir)) != NULL) {
1801 char *foundfile = dupcat(src, "/", filename, NULL);
1807 close_directory(dir);
1809 (void) scp_send_enddir();
1811 scp_restore_remotepath(save_target);
1815 * Execute the sink part of the SCP protocol.
1817 static void sink(char *targ, char *src)
1827 time_t stat_starttime, stat_lasttime;
1830 attr = file_type(targ);
1831 if (attr == FILE_TYPE_DIRECTORY)
1834 if (targetshouldbedirectory && !targisdir)
1835 bump("%s: Not a directory", targ);
1839 struct scp_sink_action act;
1840 if (scp_get_sink_action(&act))
1843 if (act.action == SCP_SINK_ENDDIR)
1846 if (act.action == SCP_SINK_RETRY)
1851 * Prevent the remote side from maliciously writing to
1852 * files outside the target area by sending a filename
1853 * containing `../'. In fact, it shouldn't be sending
1854 * filenames with any slashes or colons in at all; so
1855 * we'll find the last slash, backslash or colon in the
1856 * filename and use only the part after that. (And
1859 * In addition, we also ensure here that if we're
1860 * copying a single file and the target is a directory
1861 * (common usage: `pscp host:filename .') the remote
1862 * can't send us a _different_ file name. We can
1863 * distinguish this case because `src' will be non-NULL
1864 * and the last component of that will fail to match
1865 * (the last component of) the name sent.
1867 * Well, not always; if `src' is a wildcard, we do
1868 * expect to get back filenames that don't correspond
1869 * exactly to it. Ideally in this case, we would like
1870 * to ensure that the returned filename actually
1871 * matches the wildcard pattern - but one of SCP's
1872 * protocol infelicities is that wildcard matching is
1873 * done at the server end _by the server's rules_ and
1874 * so in general this is infeasible. Hence, we only
1875 * accept filenames that don't correspond to `src' if
1876 * unsafe mode is enabled or we are using SFTP (which
1877 * resolves remote wildcards on the client side and can
1880 char *striptarget, *stripsrc;
1882 striptarget = stripslashes(act.name, 1);
1883 if (striptarget != act.name) {
1884 tell_user(stderr, "warning: remote host sent a compound"
1885 " pathname '%s'", act.name);
1886 tell_user(stderr, " renaming local file to '%s'",
1891 * Also check to see if the target filename is '.' or
1892 * '..', or indeed '...' and so on because Windows
1893 * appears to interpret those like '..'.
1895 if (is_dots(striptarget)) {
1896 bump("security violation: remote host attempted to write to"
1897 " a '.' or '..' path!");
1901 stripsrc = stripslashes(src, 1);
1902 if (strcmp(striptarget, stripsrc) &&
1903 !using_sftp && !scp_unsafe_mode) {
1904 tell_user(stderr, "warning: remote host tried to write "
1905 "to a file called '%s'", striptarget);
1906 tell_user(stderr, " when we requested a file "
1907 "called '%s'.", stripsrc);
1908 tell_user(stderr, " If this is a wildcard, "
1909 "consider upgrading to SSH-2 or using");
1910 tell_user(stderr, " the '-unsafe' option. Renaming"
1911 " of this file has been disallowed.");
1912 /* Override the name the server provided with our own. */
1913 striptarget = stripsrc;
1917 if (targ[0] != '\0')
1918 destfname = dir_file_cat(targ, striptarget);
1920 destfname = dupstr(striptarget);
1923 * In this branch of the if, the target area is a
1924 * single file with an explicitly specified name in any
1925 * case, so there's no danger.
1927 destfname = dupstr(targ);
1929 attr = file_type(destfname);
1930 exists = (attr != FILE_TYPE_NONEXISTENT);
1932 if (act.action == SCP_SINK_DIR) {
1933 if (exists && attr != FILE_TYPE_DIRECTORY) {
1934 run_err("%s: Not a directory", destfname);
1939 if (!create_directory(destfname)) {
1940 run_err("%s: Cannot create directory", destfname);
1945 sink(destfname, NULL);
1946 /* can we set the timestamp for directories ? */
1951 f = open_new_file(destfname, act.permissions);
1953 run_err("%s: Cannot create file", destfname);
1958 if (scp_accept_filexfer()) {
1964 stat_bytes = uint64_make(0, 0);
1965 stat_starttime = time(NULL);
1967 stat_name = stripslashes(destfname, 1);
1969 received = uint64_make(0, 0);
1970 while (uint64_compare(received,act.size) < 0) {
1971 char transbuf[32768];
1974 blksize = uint64_make(0, 32768);
1975 if (uint64_compare(blksize,uint64_subtract(act.size,received)) > 0)
1976 blksize = uint64_subtract(act.size,received);
1977 read = scp_recv_filedata(transbuf, (int)blksize.lo);
1979 bump("Lost connection");
1982 if (write_to_file(f, transbuf, read) != (int)read) {
1984 /* FIXME: in sftp we can actually abort the transfer */
1986 printf("\r%-25.25s | %50s\n",
1988 "Write error.. waiting for end of file");
1992 stat_bytes = uint64_add32(stat_bytes,read);
1993 if (time(NULL) > stat_lasttime ||
1994 uint64_compare(uint64_add32(received, read), act.size) == 0) {
1995 stat_lasttime = time(NULL);
1996 print_stats(stat_name, act.size, stat_bytes,
1997 stat_starttime, stat_lasttime);
2000 received = uint64_add32(received, read);
2003 set_file_times(f, act.mtime, act.atime);
2008 run_err("%s: Write error", destfname);
2012 (void) scp_finish_filerecv();
2019 * We will copy local files to a remote server.
2021 static void toremote(int argc, char *argv[])
2023 char *src, *targ, *host, *user;
2029 targ = argv[argc - 1];
2031 /* Separate host from filename */
2035 bump("targ == NULL in toremote()");
2039 /* Substitute "." for empty target */
2041 /* Separate host and username */
2043 host = strrchr(host, '@');
2054 if (colon(argv[0]) != NULL)
2055 bump("%s: Remote to remote not supported", argv[0]);
2057 wc_type = test_wildcard(argv[0], 1);
2058 if (wc_type == WCTYPE_NONEXISTENT)
2059 bump("%s: No such file or directory\n", argv[0]);
2060 else if (wc_type == WCTYPE_WILDCARD)
2061 targetshouldbedirectory = 1;
2064 cmd = dupprintf("scp%s%s%s%s -t %s",
2065 verbose ? " -v" : "",
2066 recursive ? " -r" : "",
2067 preserve ? " -p" : "",
2068 targetshouldbedirectory ? " -d" : "", targ);
2069 do_cmd(host, user, cmd);
2072 if (scp_source_setup(targ, targetshouldbedirectory))
2075 for (i = 0; i < argc - 1; i++) {
2077 if (colon(src) != NULL) {
2078 tell_user(stderr, "%s: Remote to remote not supported\n", src);
2083 wc_type = test_wildcard(src, 1);
2084 if (wc_type == WCTYPE_NONEXISTENT) {
2085 run_err("%s: No such file or directory", src);
2087 } else if (wc_type == WCTYPE_FILENAME) {
2091 WildcardMatcher *wc;
2094 wc = begin_wildcard_matching(src);
2096 run_err("%s: No such file or directory", src);
2100 while ((filename = wildcard_get_filename(wc)) != NULL) {
2105 finish_wildcard_matching(wc);
2111 * We will copy files from a remote server to the local machine.
2113 static void tolocal(int argc, char *argv[])
2115 char *src, *targ, *host, *user;
2121 bump("More than one remote source not supported");
2126 /* Separate host from filename */
2130 bump("Local to local copy not supported");
2134 /* Substitute "." for empty filename */
2136 /* Separate username and hostname */
2138 host = strrchr(host, '@');
2148 cmd = dupprintf("scp%s%s%s%s -f %s",
2149 verbose ? " -v" : "",
2150 recursive ? " -r" : "",
2151 preserve ? " -p" : "",
2152 targetshouldbedirectory ? " -d" : "", src);
2153 do_cmd(host, user, cmd);
2156 if (scp_sink_setup(src, preserve, recursive))
2163 * We will issue a list command to get a remote directory.
2165 static void get_dir_list(int argc, char *argv[])
2167 char *src, *host, *user;
2173 /* Separate host from filename */
2177 bump("Local file listing not supported");
2181 /* Substitute "." for empty filename */
2183 /* Separate username and hostname */
2185 host = strrchr(host, '@');
2195 cmd = snewn(4 * strlen(src) + 100, char);
2196 strcpy(cmd, "ls -la '");
2197 p = cmd + strlen(cmd);
2198 for (q = src; *q; q++) {
2211 do_cmd(host, user, cmd);
2215 scp_sftp_listdir(src);
2217 while (ssh_scp_recv((unsigned char *) &c, 1) > 0)
2218 tell_char(stdout, c);
2223 * Short description of parameters.
2225 static void usage(void)
2227 printf("PuTTY Secure Copy client\n");
2228 printf("%s\n", ver);
2229 printf("Usage: pscp [options] [user@]host:source target\n");
2231 (" pscp [options] source [source...] [user@]host:target\n");
2232 printf(" pscp [options] -ls [user@]host:filespec\n");
2233 printf("Options:\n");
2234 printf(" -V print version information and exit\n");
2235 printf(" -pgpfp print PGP key fingerprints and exit\n");
2236 printf(" -p preserve file attributes\n");
2237 printf(" -q quiet, don't show statistics\n");
2238 printf(" -r copy directories recursively\n");
2239 printf(" -v show verbose messages\n");
2240 printf(" -load sessname Load settings from saved session\n");
2241 printf(" -P port connect to specified port\n");
2242 printf(" -l user connect with specified username\n");
2243 printf(" -pw passw login with specified password\n");
2244 printf(" -1 -2 force use of particular SSH protocol version\n");
2245 printf(" -4 -6 force use of IPv4 or IPv6\n");
2246 printf(" -C enable compression\n");
2247 printf(" -i key private key file for user authentication\n");
2248 printf(" -noagent disable use of Pageant\n");
2249 printf(" -agent enable use of Pageant\n");
2250 printf(" -hostkey aa:bb:cc:...\n");
2251 printf(" manually specify a host key (may be repeated)\n");
2252 printf(" -batch disable all interactive prompts\n");
2253 printf(" -unsafe allow server-side wildcards (DANGEROUS)\n");
2254 printf(" -sftp force use of SFTP protocol\n");
2255 printf(" -scp force use of SCP protocol\n");
2258 * -gui is an internal option, used by GUI front ends to get
2259 * pscp to pass progress reports back to them. It's not an
2260 * ordinary user-accessible option, so it shouldn't be part of
2261 * the command-line help. The only people who need to know
2262 * about it are programmers, and they can read the source.
2265 (" -gui hWnd GUI mode with the windows handle for receiving messages\n");
2272 printf("pscp: %s\n", ver);
2276 void cmdline_error(char *p, ...)
2279 fprintf(stderr, "pscp: ");
2281 vfprintf(stderr, p, ap);
2283 fprintf(stderr, "\n try typing just \"pscp\" for help\n");
2287 const int share_can_be_downstream = TRUE;
2288 const int share_can_be_upstream = FALSE;
2291 * Main program. (Called `psftp_main' because it gets called from
2292 * *sftp.c; bit silly, I know, but it had to be called _something_.)
2294 int psftp_main(int argc, char *argv[])
2298 default_protocol = PROT_TELNET;
2301 #ifdef FLAG_SYNCAGENT
2305 cmdline_tooltype = TOOLTYPE_FILETRANSFER;
2308 /* Load Default Settings before doing anything else. */
2310 do_defaults(NULL, conf);
2311 loaded_session = FALSE;
2313 for (i = 1; i < argc; i++) {
2315 if (argv[i][0] != '-')
2317 ret = cmdline_process_param(argv[i], i+1<argc?argv[i+1]:NULL, 1, conf);
2319 cmdline_error("option \"%s\" requires an argument", argv[i]);
2320 } else if (ret == 2) {
2321 i++; /* skip next argument */
2322 } else if (ret == 1) {
2323 /* We have our own verbosity in addition to `flags'. */
2324 if (flags & FLAG_VERBOSE)
2326 } else if (strcmp(argv[i], "-pgpfp") == 0) {
2329 } else if (strcmp(argv[i], "-r") == 0) {
2331 } else if (strcmp(argv[i], "-p") == 0) {
2333 } else if (strcmp(argv[i], "-q") == 0) {
2335 } else if (strcmp(argv[i], "-h") == 0 ||
2336 strcmp(argv[i], "-?") == 0 ||
2337 strcmp(argv[i], "--help") == 0) {
2339 } else if (strcmp(argv[i], "-V") == 0 ||
2340 strcmp(argv[i], "--version") == 0) {
2342 } else if (strcmp(argv[i], "-ls") == 0) {
2344 } else if (strcmp(argv[i], "-batch") == 0) {
2345 console_batch_mode = 1;
2346 } else if (strcmp(argv[i], "-unsafe") == 0) {
2347 scp_unsafe_mode = 1;
2348 } else if (strcmp(argv[i], "-sftp") == 0) {
2349 try_scp = 0; try_sftp = 1;
2350 } else if (strcmp(argv[i], "-scp") == 0) {
2351 try_scp = 1; try_sftp = 0;
2352 } else if (strcmp(argv[i], "--") == 0) {
2356 cmdline_error("unknown option \"%s\"", argv[i]);
2366 get_dir_list(argc, argv);
2373 targetshouldbedirectory = 1;
2375 if (colon(argv[argc - 1]) != NULL)
2376 toremote(argc, argv);
2378 tolocal(argc, argv);
2381 if (back != NULL && back->connected(backhandle)) {
2383 back->special(backhandle, TS_EOF);
2385 ssh_scp_recv((unsigned char *) &ch, 1);
2390 console_provide_logctx(NULL);
2391 back->free(backhandle);
2395 return (errs == 0 ? 0 : 1);