2 * scp.c - Scp (Secure Copy) client for PuTTY.
3 * Joris van Rantwijk, Simon Tatham
5 * This is mainly based on ssh-1.2.26/scp.c by Timo Rinne & Tatu Ylonen.
6 * They, in turn, used stuff from BSD rcp.
8 * (SGT, 2001-09-10: Joris van Rantwijk assures me that although
9 * this file as originally submitted was inspired by, and
10 * _structurally_ based on, ssh-1.2.26's scp.c, there wasn't any
11 * actual code duplicated, so the above comment shouldn't give rise
12 * to licensing issues.)
22 #define PUTTY_DO_GLOBALS
31 static int verbose = 0;
32 static int recursive = 0;
33 static int preserve = 0;
34 static int targetshouldbedirectory = 0;
35 static int statistics = 1;
36 static int prev_stats_len = 0;
37 static int scp_unsafe_mode = 0;
39 static int try_scp = 1;
40 static int try_sftp = 1;
41 static int main_cmd_is_sftp = 0;
42 static int fallback_cmd_is_sftp = 0;
43 static int using_sftp = 0;
46 static void *backhandle;
50 static void source(char *src);
51 static void rsource(char *src);
52 static void sink(char *targ, char *src);
54 const char *const appname = "PSCP";
57 * The maximum amount of queued data we accept before we stop and
58 * wait for the server to process some.
60 #define MAX_SCP_BUFSIZE 16384
62 void ldisc_send(void *handle, char *buf, int len, int interactive)
65 * This is only here because of the calls to ldisc_send(NULL,
66 * 0) in ssh.c. Nothing in PSCP actually needs to use the ldisc
67 * as an ldisc. So if we get called with any real data, I want
73 static void tell_char(FILE * stream, char 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);
117 void modalfatalbox(char *fmt, ...)
122 str = dupvprintf(fmt, ap);
123 str2 = dupcat("Fatal: ", str, "\n", NULL);
126 tell_str(stderr, str2);
132 void connection_fatal(void *frontend, char *fmt, ...)
137 str = dupvprintf(fmt, ap);
138 str2 = dupcat("Fatal: ", str, "\n", NULL);
141 tell_str(stderr, str2);
149 * In pscp, all agent requests should be synchronous, so this is a
152 void agent_schedule_callback(void (*callback)(void *, void *, int),
153 void *callback_ctx, void *data, int len)
155 assert(!"We shouldn't be here");
159 * Receive a block of data from the SSH link. Block until all data
162 * To do this, we repeatedly call the SSH protocol module, with our
163 * own trap in from_backend() to catch the data that comes back. We
164 * do this until we have enough data.
167 static unsigned char *outptr; /* where to put the data */
168 static unsigned outlen; /* how much data required */
169 static unsigned char *pending = NULL; /* any spare data */
170 static unsigned pendlen = 0, pendsize = 0; /* length and phys. size of buffer */
171 int from_backend(void *frontend, int is_stderr, const char *data, int datalen)
173 unsigned char *p = (unsigned char *) data;
174 unsigned len = (unsigned) datalen;
177 * stderr data is just spouted to local stderr and otherwise
182 if (fwrite(data, 1, len, stderr) < len)
187 if ((outlen > 0) && (len > 0)) {
188 unsigned used = outlen;
191 memcpy(outptr, p, used);
199 if (pendsize < pendlen + len) {
200 pendsize = pendlen + len + 4096;
201 pending = sresize(pending, pendsize, unsigned char);
203 memcpy(pending + pendlen, p, len);
209 int from_backend_untrusted(void *frontend_handle, const char *data, int len)
212 * No "untrusted" output should get here (the way the code is
213 * currently, it's all diverted by FLAG_STDERR).
215 assert(!"Unexpected call to from_backend_untrusted()");
216 return 0; /* not reached */
218 int from_backend_eof(void *frontend)
221 * We expect to be the party deciding when to close the
222 * connection, so if we see EOF before we sent it ourselves, we
226 connection_fatal(frontend,
227 "Received unexpected end-of-file from server");
231 static int ssh_scp_recv(unsigned char *buf, int len)
237 * See if the pending-input block contains some of what we
241 unsigned pendused = pendlen;
242 if (pendused > outlen)
244 memcpy(outptr, pending, pendused);
245 memmove(pending, pending + pendused, pendlen - pendused);
259 if (back->exitcode(backhandle) >= 0 || ssh_sftp_loop_iteration() < 0)
267 * Loop through the ssh connection and authentication process.
269 static void ssh_scp_init(void)
271 while (!back->sendok(backhandle)) {
272 if (back->exitcode(backhandle) >= 0) {
276 if (ssh_sftp_loop_iteration() < 0) {
282 /* Work out which backend we ended up using. */
283 if (!ssh_fallback_cmd(backhandle))
284 using_sftp = main_cmd_is_sftp;
286 using_sftp = fallback_cmd_is_sftp;
290 tell_user(stderr, "Using SFTP");
292 tell_user(stderr, "Using SCP1");
297 * Print an error message and exit after closing the SSH link.
299 static void bump(char *fmt, ...)
304 str = dupvprintf(fmt, ap);
306 str2 = dupcat(str, "\n", NULL);
308 tell_str(stderr, str2);
312 if (back != NULL && back->connected(backhandle)) {
314 back->special(backhandle, TS_EOF);
316 ssh_scp_recv((unsigned char *) &ch, 1);
323 * Wait for the reply to a single SFTP request. Parallels the same
324 * function in psftp.c (but isn't centralised into sftp.c because the
325 * latter module handles SFTP only and shouldn't assume that SFTP is
326 * the only thing going on by calling connection_fatal).
328 struct sftp_packet *sftp_wait_for_reply(struct sftp_request *req)
330 struct sftp_packet *pktin;
331 struct sftp_request *rreq;
336 connection_fatal(NULL, "did not receive SFTP response packet "
338 rreq = sftp_find_request(pktin);
340 connection_fatal(NULL, "unable to understand SFTP response packet "
341 "from server: %s", fxp_error());
346 * Open an SSH connection to user@host and execute cmd.
348 static void do_cmd(char *host, char *user, char *cmd)
354 if (host == NULL || host[0] == '\0')
355 bump("Empty host name");
358 * Remove fiddly bits of address: remove a colon suffix, and
359 * the square brackets around an IPv6 literal address.
361 if (host[0] == '[') {
363 host[strcspn(host, "]")] = '\0';
365 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 while (*str != '\0' && *str != ':' && *str != '/' && *str != '\\') {
603 /* Skip over IPv6 literal addresses
604 * (eg: 'jeroen@[2001:db8::1]:myfile.txt') */
605 char *ipv6_end = strchr(str, ']');
619 * Return a pointer to the portion of str that comes after the last
620 * slash (or backslash or colon, if `local' is TRUE).
622 static char *stripslashes(char *str, int local)
627 p = strchr(str, ':');
631 p = strrchr(str, '/');
635 p = strrchr(str, '\\');
643 * Determine whether a string is entirely composed of dots.
645 static int is_dots(char *str)
647 return str[strspn(str, ".")] == '\0';
651 * Wait for a response from the other side.
652 * Return 0 if ok, -1 if error.
654 static int response(void)
656 char ch, resp, rbuf[2048];
659 if (ssh_scp_recv((unsigned char *) &resp, 1) <= 0)
660 bump("Lost connection");
670 case 2: /* fatal error */
672 if (ssh_scp_recv((unsigned char *) &ch, 1) <= 0)
673 bump("Protocol error: Lost connection");
675 } while (p < sizeof(rbuf) && ch != '\n');
678 tell_user(stderr, "%s", rbuf);
686 int sftp_recvdata(char *buf, int len)
688 return ssh_scp_recv((unsigned char *) buf, len);
690 int sftp_senddata(char *buf, int len)
692 back->send(backhandle, buf, len);
696 /* ----------------------------------------------------------------------
697 * sftp-based replacement for the hacky `pscp -ls'.
699 static int sftp_ls_compare(const void *av, const void *bv)
701 const struct fxp_name *a = (const struct fxp_name *) av;
702 const struct fxp_name *b = (const struct fxp_name *) bv;
703 return strcmp(a->filename, b->filename);
705 void scp_sftp_listdir(char *dirname)
707 struct fxp_handle *dirh;
708 struct fxp_names *names;
709 struct fxp_name *ournames;
710 struct sftp_packet *pktin;
711 struct sftp_request *req;
712 int nnames, namesize;
716 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
721 printf("Listing directory %s\n", dirname);
723 req = fxp_opendir_send(dirname);
724 pktin = sftp_wait_for_reply(req);
725 dirh = fxp_opendir_recv(pktin, req);
728 printf("Unable to open %s: %s\n", dirname, fxp_error());
730 nnames = namesize = 0;
735 req = fxp_readdir_send(dirh);
736 pktin = sftp_wait_for_reply(req);
737 names = fxp_readdir_recv(pktin, req);
740 if (fxp_error_type() == SSH_FX_EOF)
742 printf("Reading directory %s: %s\n", dirname, fxp_error());
745 if (names->nnames == 0) {
746 fxp_free_names(names);
750 if (nnames + names->nnames >= namesize) {
751 namesize += names->nnames + 128;
752 ournames = sresize(ournames, namesize, struct fxp_name);
755 for (i = 0; i < names->nnames; i++)
756 ournames[nnames++] = names->names[i];
757 names->nnames = 0; /* prevent free_names */
758 fxp_free_names(names);
760 req = fxp_close_send(dirh);
761 pktin = sftp_wait_for_reply(req);
762 fxp_close_recv(pktin, req);
765 * Now we have our filenames. Sort them by actual file
766 * name, and then output the longname parts.
769 qsort(ournames, nnames, sizeof(*ournames), sftp_ls_compare);
774 for (i = 0; i < nnames; i++)
775 printf("%s\n", ournames[i].longname);
781 /* ----------------------------------------------------------------------
782 * Helper routines that contain the actual SCP protocol elements,
783 * implemented both as SCP1 and SFTP.
786 static struct scp_sftp_dirstack {
787 struct scp_sftp_dirstack *next;
788 struct fxp_name *names;
789 int namepos, namelen;
792 int matched_something; /* wildcard match set was non-empty */
793 } *scp_sftp_dirstack_head;
794 static char *scp_sftp_remotepath, *scp_sftp_currentname;
795 static char *scp_sftp_wildcard;
796 static int scp_sftp_targetisdir, scp_sftp_donethistarget;
797 static int scp_sftp_preserve, scp_sftp_recursive;
798 static unsigned long scp_sftp_mtime, scp_sftp_atime;
799 static int scp_has_times;
800 static struct fxp_handle *scp_sftp_filehandle;
801 static struct fxp_xfer *scp_sftp_xfer;
802 static uint64 scp_sftp_fileoffset;
804 int scp_source_setup(char *target, int shouldbedir)
808 * Find out whether the target filespec is in fact a
811 struct sftp_packet *pktin;
812 struct sftp_request *req;
813 struct fxp_attrs attrs;
817 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
822 req = fxp_stat_send(target);
823 pktin = sftp_wait_for_reply(req);
824 ret = fxp_stat_recv(pktin, req, &attrs);
826 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS))
827 scp_sftp_targetisdir = 0;
829 scp_sftp_targetisdir = (attrs.permissions & 0040000) != 0;
831 if (shouldbedir && !scp_sftp_targetisdir) {
832 bump("pscp: remote filespec %s: not a directory\n", target);
835 scp_sftp_remotepath = dupstr(target);
844 int scp_send_errmsg(char *str)
847 /* do nothing; we never need to send our errors to the server */
849 back->send(backhandle, "\001", 1);/* scp protocol error prefix */
850 back->send(backhandle, str, strlen(str));
852 return 0; /* can't fail */
855 int scp_send_filetimes(unsigned long mtime, unsigned long atime)
858 scp_sftp_mtime = mtime;
859 scp_sftp_atime = atime;
864 sprintf(buf, "T%lu 0 %lu 0\n", mtime, atime);
865 back->send(backhandle, buf, strlen(buf));
870 int scp_send_filename(char *name, uint64 size, int permissions)
874 struct sftp_packet *pktin;
875 struct sftp_request *req;
876 struct fxp_attrs attrs;
878 if (scp_sftp_targetisdir) {
879 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
881 fullname = dupstr(scp_sftp_remotepath);
885 PUT_PERMISSIONS(attrs, permissions);
887 req = fxp_open_send(fullname,
888 SSH_FXF_WRITE | SSH_FXF_CREAT | SSH_FXF_TRUNC,
890 pktin = sftp_wait_for_reply(req);
891 scp_sftp_filehandle = fxp_open_recv(pktin, req);
893 if (!scp_sftp_filehandle) {
894 tell_user(stderr, "pscp: unable to open %s: %s",
895 fullname, fxp_error());
900 scp_sftp_fileoffset = uint64_make(0, 0);
901 scp_sftp_xfer = xfer_upload_init(scp_sftp_filehandle,
902 scp_sftp_fileoffset);
908 uint64_decimal(size, sizestr);
911 sprintf(buf, "C%04o %s ", (int)(permissions & 07777), sizestr);
912 back->send(backhandle, buf, strlen(buf));
913 back->send(backhandle, name, strlen(name));
914 back->send(backhandle, "\n", 1);
919 int scp_send_filedata(char *data, int len)
923 struct sftp_packet *pktin;
925 if (!scp_sftp_filehandle) {
929 while (!xfer_upload_ready(scp_sftp_xfer)) {
931 ret = xfer_upload_gotpkt(scp_sftp_xfer, pktin);
933 tell_user(stderr, "error while writing: %s", fxp_error());
934 if (ret == INT_MIN) /* pktin not even freed */
941 xfer_upload_data(scp_sftp_xfer, data, len);
943 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, len);
946 int bufsize = back->send(backhandle, data, len);
949 * If the network transfer is backing up - that is, the
950 * remote site is not accepting data as fast as we can
951 * produce it - then we must loop on network events until
952 * we have space in the buffer again.
954 while (bufsize > MAX_SCP_BUFSIZE) {
955 if (ssh_sftp_loop_iteration() < 0)
957 bufsize = back->sendbuffer(backhandle);
964 int scp_send_finish(void)
967 struct fxp_attrs attrs;
968 struct sftp_packet *pktin;
969 struct sftp_request *req;
972 while (!xfer_done(scp_sftp_xfer)) {
974 ret = xfer_upload_gotpkt(scp_sftp_xfer, pktin);
976 tell_user(stderr, "error while writing: %s", fxp_error());
977 if (ret == INT_MIN) /* pktin not even freed */
983 xfer_cleanup(scp_sftp_xfer);
985 if (!scp_sftp_filehandle) {
989 attrs.flags = SSH_FILEXFER_ATTR_ACMODTIME;
990 attrs.atime = scp_sftp_atime;
991 attrs.mtime = scp_sftp_mtime;
992 req = fxp_fsetstat_send(scp_sftp_filehandle, attrs);
993 pktin = sftp_wait_for_reply(req);
994 ret = fxp_fsetstat_recv(pktin, req);
996 tell_user(stderr, "unable to set file times: %s", fxp_error());
1000 req = fxp_close_send(scp_sftp_filehandle);
1001 pktin = sftp_wait_for_reply(req);
1002 fxp_close_recv(pktin, req);
1006 back->send(backhandle, "", 1);
1011 char *scp_save_remotepath(void)
1014 return scp_sftp_remotepath;
1019 void scp_restore_remotepath(char *data)
1022 scp_sftp_remotepath = data;
1025 int scp_send_dirname(char *name, int modes)
1030 struct fxp_attrs attrs;
1031 struct sftp_packet *pktin;
1032 struct sftp_request *req;
1035 if (scp_sftp_targetisdir) {
1036 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
1038 fullname = dupstr(scp_sftp_remotepath);
1042 * We don't worry about whether we managed to create the
1043 * directory, because if it exists already it's OK just to
1044 * use it. Instead, we will stat it afterwards, and if it
1045 * exists and is a directory we will assume we were either
1046 * successful or it didn't matter.
1048 req = fxp_mkdir_send(fullname);
1049 pktin = sftp_wait_for_reply(req);
1050 ret = fxp_mkdir_recv(pktin, req);
1055 err = "server reported no error";
1057 req = fxp_stat_send(fullname);
1058 pktin = sftp_wait_for_reply(req);
1059 ret = fxp_stat_recv(pktin, req, &attrs);
1061 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) ||
1062 !(attrs.permissions & 0040000)) {
1063 tell_user(stderr, "unable to create directory %s: %s",
1070 scp_sftp_remotepath = fullname;
1075 sprintf(buf, "D%04o 0 ", modes);
1076 back->send(backhandle, buf, strlen(buf));
1077 back->send(backhandle, name, strlen(name));
1078 back->send(backhandle, "\n", 1);
1083 int scp_send_enddir(void)
1086 sfree(scp_sftp_remotepath);
1089 back->send(backhandle, "E\n", 2);
1095 * Yes, I know; I have an scp_sink_setup _and_ an scp_sink_init.
1096 * That's bad. The difference is that scp_sink_setup is called once
1097 * right at the start, whereas scp_sink_init is called to
1098 * initialise every level of recursion in the protocol.
1100 int scp_sink_setup(char *source, int preserve, int recursive)
1106 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
1111 * It's possible that the source string we've been given
1112 * contains a wildcard. If so, we must split the directory
1113 * away from the wildcard itself (throwing an error if any
1114 * wildcardness comes before the final slash) and arrange
1115 * things so that a dirstack entry will be set up.
1117 newsource = snewn(1+strlen(source), char);
1118 if (!wc_unescape(newsource, source)) {
1119 /* Yes, here we go; it's a wildcard. Bah. */
1120 char *dupsource, *lastpart, *dirpart, *wildcard;
1124 dupsource = dupstr(source);
1125 lastpart = stripslashes(dupsource, 0);
1126 wildcard = dupstr(lastpart);
1128 if (*dupsource && dupsource[1]) {
1130 * The remains of dupsource are at least two
1131 * characters long, meaning the pathname wasn't
1132 * empty or just `/'. Hence, we remove the trailing
1135 lastpart[-1] = '\0';
1136 } else if (!*dupsource) {
1138 * The remains of dupsource are _empty_ - the whole
1139 * pathname was a wildcard. Hence we need to
1140 * replace it with ".".
1143 dupsource = dupstr(".");
1147 * Now we have separated our string into dupsource (the
1148 * directory part) and wildcard. Both of these will
1149 * need freeing at some point. Next step is to remove
1150 * wildcard escapes from the directory part, throwing
1151 * an error if it contains a real wildcard.
1153 dirpart = snewn(1+strlen(dupsource), char);
1154 if (!wc_unescape(dirpart, dupsource)) {
1155 tell_user(stderr, "%s: multiple-level wildcards unsupported",
1165 * Now we have dirpart (unescaped, ie a valid remote
1166 * path), and wildcard (a wildcard). This will be
1167 * sufficient to arrange a dirstack entry.
1169 scp_sftp_remotepath = dirpart;
1170 scp_sftp_wildcard = wildcard;
1173 scp_sftp_remotepath = newsource;
1174 scp_sftp_wildcard = NULL;
1176 scp_sftp_preserve = preserve;
1177 scp_sftp_recursive = recursive;
1178 scp_sftp_donethistarget = 0;
1179 scp_sftp_dirstack_head = NULL;
1184 int scp_sink_init(void)
1187 back->send(backhandle, "", 1);
1192 #define SCP_SINK_FILE 1
1193 #define SCP_SINK_DIR 2
1194 #define SCP_SINK_ENDDIR 3
1195 #define SCP_SINK_RETRY 4 /* not an action; just try again */
1196 struct scp_sink_action {
1197 int action; /* FILE, DIR, ENDDIR */
1198 char *buf; /* will need freeing after use */
1199 char *name; /* filename or dirname (not ENDDIR) */
1200 long permissions; /* access permissions (not ENDDIR) */
1201 uint64 size; /* file size (not ENDDIR) */
1202 int settime; /* 1 if atime and mtime are filled */
1203 unsigned long atime, mtime; /* access times for the file */
1206 int scp_get_sink_action(struct scp_sink_action *act)
1210 int must_free_fname;
1211 struct fxp_attrs attrs;
1212 struct sftp_packet *pktin;
1213 struct sftp_request *req;
1216 if (!scp_sftp_dirstack_head) {
1217 if (!scp_sftp_donethistarget) {
1219 * Simple case: we are only dealing with one file.
1221 fname = scp_sftp_remotepath;
1222 must_free_fname = 0;
1223 scp_sftp_donethistarget = 1;
1226 * Even simpler case: one file _which we've done_.
1227 * Return 1 (finished).
1233 * We're now in the middle of stepping through a list
1234 * of names returned from fxp_readdir(); so let's carry
1237 struct scp_sftp_dirstack *head = scp_sftp_dirstack_head;
1238 while (head->namepos < head->namelen &&
1239 (is_dots(head->names[head->namepos].filename) ||
1241 !wc_match(head->wildcard,
1242 head->names[head->namepos].filename))))
1243 head->namepos++; /* skip . and .. */
1244 if (head->namepos < head->namelen) {
1245 head->matched_something = 1;
1246 fname = dupcat(head->dirpath, "/",
1247 head->names[head->namepos++].filename,
1249 must_free_fname = 1;
1252 * We've come to the end of the list; pop it off
1253 * the stack and return an ENDDIR action (or RETRY
1254 * if this was a wildcard match).
1256 if (head->wildcard) {
1257 act->action = SCP_SINK_RETRY;
1258 if (!head->matched_something) {
1259 tell_user(stderr, "pscp: wildcard '%s' matched "
1260 "no files", head->wildcard);
1263 sfree(head->wildcard);
1266 act->action = SCP_SINK_ENDDIR;
1269 sfree(head->dirpath);
1271 scp_sftp_dirstack_head = head->next;
1279 * Now we have a filename. Stat it, and see if it's a file
1282 req = fxp_stat_send(fname);
1283 pktin = sftp_wait_for_reply(req);
1284 ret = fxp_stat_recv(pktin, req, &attrs);
1286 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS)) {
1287 tell_user(stderr, "unable to identify %s: %s", fname,
1288 ret ? "file type not supplied" : fxp_error());
1289 if (must_free_fname) sfree(fname);
1294 if (attrs.permissions & 0040000) {
1295 struct scp_sftp_dirstack *newitem;
1296 struct fxp_handle *dirhandle;
1297 int nnames, namesize;
1298 struct fxp_name *ournames;
1299 struct fxp_names *names;
1302 * It's a directory. If we're not in recursive mode,
1303 * this merits a complaint (which is fatal if the name
1304 * was specified directly, but not if it was matched by
1307 * We skip this complaint completely if
1308 * scp_sftp_wildcard is set, because that's an
1309 * indication that we're not actually supposed to
1310 * _recursively_ transfer the dir, just scan it for
1311 * things matching the wildcard.
1313 if (!scp_sftp_recursive && !scp_sftp_wildcard) {
1314 tell_user(stderr, "pscp: %s: is a directory", fname);
1316 if (must_free_fname) sfree(fname);
1317 if (scp_sftp_dirstack_head) {
1318 act->action = SCP_SINK_RETRY;
1326 * Otherwise, the fun begins. We must fxp_opendir() the
1327 * directory, slurp the filenames into memory, return
1328 * SCP_SINK_DIR (unless this is a wildcard match), and
1329 * set targetisdir. The next time we're called, we will
1330 * run through the list of filenames one by one,
1331 * matching them against a wildcard if present.
1333 * If targetisdir is _already_ set (meaning we're
1334 * already in the middle of going through another such
1335 * list), we must push the other (target,namelist) pair
1338 req = fxp_opendir_send(fname);
1339 pktin = sftp_wait_for_reply(req);
1340 dirhandle = fxp_opendir_recv(pktin, req);
1343 tell_user(stderr, "pscp: unable to open directory %s: %s",
1344 fname, fxp_error());
1345 if (must_free_fname) sfree(fname);
1349 nnames = namesize = 0;
1354 req = fxp_readdir_send(dirhandle);
1355 pktin = sftp_wait_for_reply(req);
1356 names = fxp_readdir_recv(pktin, req);
1358 if (names == NULL) {
1359 if (fxp_error_type() == SSH_FX_EOF)
1361 tell_user(stderr, "pscp: reading directory %s: %s",
1362 fname, fxp_error());
1364 req = fxp_close_send(dirhandle);
1365 pktin = sftp_wait_for_reply(req);
1366 fxp_close_recv(pktin, req);
1368 if (must_free_fname) sfree(fname);
1373 if (names->nnames == 0) {
1374 fxp_free_names(names);
1377 if (nnames + names->nnames >= namesize) {
1378 namesize += names->nnames + 128;
1379 ournames = sresize(ournames, namesize, struct fxp_name);
1381 for (i = 0; i < names->nnames; i++) {
1382 if (!strcmp(names->names[i].filename, ".") ||
1383 !strcmp(names->names[i].filename, "..")) {
1385 * . and .. are normal consequences of
1386 * reading a directory, and aren't worth
1387 * complaining about.
1389 } else if (!vet_filename(names->names[i].filename)) {
1390 tell_user(stderr, "ignoring potentially dangerous server-"
1391 "supplied filename '%s'",
1392 names->names[i].filename);
1394 ournames[nnames++] = names->names[i];
1396 names->nnames = 0; /* prevent free_names */
1397 fxp_free_names(names);
1399 req = fxp_close_send(dirhandle);
1400 pktin = sftp_wait_for_reply(req);
1401 fxp_close_recv(pktin, req);
1403 newitem = snew(struct scp_sftp_dirstack);
1404 newitem->next = scp_sftp_dirstack_head;
1405 newitem->names = ournames;
1406 newitem->namepos = 0;
1407 newitem->namelen = nnames;
1408 if (must_free_fname)
1409 newitem->dirpath = fname;
1411 newitem->dirpath = dupstr(fname);
1412 if (scp_sftp_wildcard) {
1413 newitem->wildcard = scp_sftp_wildcard;
1414 newitem->matched_something = 0;
1415 scp_sftp_wildcard = NULL;
1417 newitem->wildcard = NULL;
1419 scp_sftp_dirstack_head = newitem;
1421 if (newitem->wildcard) {
1422 act->action = SCP_SINK_RETRY;
1424 act->action = SCP_SINK_DIR;
1425 act->buf = dupstr(stripslashes(fname, 0));
1426 act->name = act->buf;
1427 act->size = uint64_make(0,0); /* duhh, it's a directory */
1428 act->permissions = 07777 & attrs.permissions;
1429 if (scp_sftp_preserve &&
1430 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1431 act->atime = attrs.atime;
1432 act->mtime = attrs.mtime;
1441 * It's a file. Return SCP_SINK_FILE.
1443 act->action = SCP_SINK_FILE;
1444 act->buf = dupstr(stripslashes(fname, 0));
1445 act->name = act->buf;
1446 if (attrs.flags & SSH_FILEXFER_ATTR_SIZE) {
1447 act->size = attrs.size;
1449 act->size = uint64_make(ULONG_MAX,ULONG_MAX); /* no idea */
1450 act->permissions = 07777 & attrs.permissions;
1451 if (scp_sftp_preserve &&
1452 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1453 act->atime = attrs.atime;
1454 act->mtime = attrs.mtime;
1458 if (must_free_fname)
1459 scp_sftp_currentname = fname;
1461 scp_sftp_currentname = dupstr(fname);
1476 if (ssh_scp_recv((unsigned char *) &ch, 1) <= 0)
1479 bump("Protocol error: Unexpected newline");
1483 if (ssh_scp_recv((unsigned char *) &ch, 1) <= 0)
1484 bump("Lost connection");
1487 act->buf = sresize(act->buf, bufsize, char);
1490 } while (ch != '\n');
1491 act->buf[i - 1] = '\0';
1493 case '\01': /* error */
1494 tell_user(stderr, "%s", act->buf);
1496 continue; /* go round again */
1497 case '\02': /* fatal error */
1498 bump("%s", act->buf);
1500 back->send(backhandle, "", 1);
1501 act->action = SCP_SINK_ENDDIR;
1504 if (sscanf(act->buf, "%ld %*d %ld %*d",
1505 &act->mtime, &act->atime) == 2) {
1507 back->send(backhandle, "", 1);
1508 continue; /* go round again */
1510 bump("Protocol error: Illegal time format");
1513 act->action = (action == 'C' ? SCP_SINK_FILE : SCP_SINK_DIR);
1516 bump("Protocol error: Expected control record");
1519 * We will go round this loop only once, unless we hit
1526 * If we get here, we must have seen SCP_SINK_FILE or
1532 if (sscanf(act->buf, "%lo %s %n", &act->permissions,
1534 bump("Protocol error: Illegal file descriptor format");
1535 act->size = uint64_from_decimal(sizestr);
1536 act->name = act->buf + i;
1542 int scp_accept_filexfer(void)
1545 struct sftp_packet *pktin;
1546 struct sftp_request *req;
1548 req = fxp_open_send(scp_sftp_currentname, SSH_FXF_READ, NULL);
1549 pktin = sftp_wait_for_reply(req);
1550 scp_sftp_filehandle = fxp_open_recv(pktin, req);
1552 if (!scp_sftp_filehandle) {
1553 tell_user(stderr, "pscp: unable to open %s: %s",
1554 scp_sftp_currentname, fxp_error());
1558 scp_sftp_fileoffset = uint64_make(0, 0);
1559 scp_sftp_xfer = xfer_download_init(scp_sftp_filehandle,
1560 scp_sftp_fileoffset);
1561 sfree(scp_sftp_currentname);
1564 back->send(backhandle, "", 1);
1565 return 0; /* can't fail */
1569 int scp_recv_filedata(char *data, int len)
1572 struct sftp_packet *pktin;
1576 xfer_download_queue(scp_sftp_xfer);
1577 pktin = sftp_recv();
1578 ret = xfer_download_gotpkt(scp_sftp_xfer, pktin);
1580 tell_user(stderr, "pscp: error while reading: %s", fxp_error());
1581 if (ret == INT_MIN) /* pktin not even freed */
1587 if (xfer_download_data(scp_sftp_xfer, &vbuf, &actuallen)) {
1589 * This assertion relies on the fact that the natural
1590 * block size used in the xfer manager is at most that
1591 * used in this module. I don't like crossing layers in
1592 * this way, but it'll do for now.
1594 assert(actuallen <= len);
1595 memcpy(data, vbuf, actuallen);
1600 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, actuallen);
1604 return ssh_scp_recv((unsigned char *) data, len);
1608 int scp_finish_filerecv(void)
1611 struct sftp_packet *pktin;
1612 struct sftp_request *req;
1615 * Ensure that xfer_done() will work correctly, so we can
1616 * clean up any outstanding requests from the file
1619 xfer_set_error(scp_sftp_xfer);
1620 while (!xfer_done(scp_sftp_xfer)) {
1624 pktin = sftp_recv();
1625 ret = xfer_download_gotpkt(scp_sftp_xfer, pktin);
1627 tell_user(stderr, "pscp: error while reading: %s", fxp_error());
1628 if (ret == INT_MIN) /* pktin not even freed */
1633 if (xfer_download_data(scp_sftp_xfer, &vbuf, &len))
1636 xfer_cleanup(scp_sftp_xfer);
1638 req = fxp_close_send(scp_sftp_filehandle);
1639 pktin = sftp_wait_for_reply(req);
1640 fxp_close_recv(pktin, req);
1643 back->send(backhandle, "", 1);
1648 /* ----------------------------------------------------------------------
1649 * Send an error message to the other side and to the screen.
1650 * Increment error counter.
1652 static void run_err(const char *fmt, ...)
1658 str = dupvprintf(fmt, ap);
1659 str2 = dupcat("pscp: ", str, "\n", NULL);
1661 scp_send_errmsg(str2);
1662 tell_user(stderr, "%s", str2);
1668 * Execute the source part of the SCP protocol.
1670 static void source(char *src)
1673 unsigned long mtime, atime;
1680 time_t stat_starttime, stat_lasttime;
1682 attr = file_type(src);
1683 if (attr == FILE_TYPE_NONEXISTENT ||
1684 attr == FILE_TYPE_WEIRD) {
1685 run_err("%s: %s file or directory", src,
1686 (attr == FILE_TYPE_WEIRD ? "Not a" : "No such"));
1690 if (attr == FILE_TYPE_DIRECTORY) {
1693 * Avoid . and .. directories.
1696 p = strrchr(src, '/');
1698 p = strrchr(src, '\\');
1703 if (!strcmp(p, ".") || !strcmp(p, ".."))
1704 /* skip . and .. */ ;
1708 run_err("%s: not a regular file", src);
1713 if ((last = strrchr(src, '/')) == NULL)
1717 if (strrchr(last, '\\') != NULL)
1718 last = strrchr(last, '\\') + 1;
1719 if (last == src && strchr(src, ':') != NULL)
1720 last = strchr(src, ':') + 1;
1722 f = open_existing_file(src, &size, &mtime, &atime, &permissions);
1724 run_err("%s: Cannot open file", src);
1728 if (scp_send_filetimes(mtime, atime)) {
1736 uint64_decimal(size, sizestr);
1737 tell_user(stderr, "Sending file %s, size=%s", last, sizestr);
1739 if (scp_send_filename(last, size, permissions)) {
1744 stat_bytes = uint64_make(0,0);
1745 stat_starttime = time(NULL);
1748 for (i = uint64_make(0,0);
1749 uint64_compare(i,size) < 0;
1750 i = uint64_add32(i,4096)) {
1751 char transbuf[4096];
1754 if (uint64_compare(uint64_add32(i, k),size) > 0) /* i + k > size */
1755 k = (uint64_subtract(size, i)).lo; /* k = size - i; */
1756 if ((j = read_from_file(f, transbuf, k)) != k) {
1759 bump("%s: Read error", src);
1761 if (scp_send_filedata(transbuf, k))
1762 bump("%s: Network error occurred", src);
1765 stat_bytes = uint64_add32(stat_bytes, k);
1766 if (time(NULL) != stat_lasttime ||
1767 (uint64_compare(uint64_add32(i, k), size) == 0)) {
1768 stat_lasttime = time(NULL);
1769 print_stats(last, size, stat_bytes,
1770 stat_starttime, stat_lasttime);
1777 (void) scp_send_finish();
1781 * Recursively send the contents of a directory.
1783 static void rsource(char *src)
1789 if ((last = strrchr(src, '/')) == NULL)
1793 if (strrchr(last, '\\') != NULL)
1794 last = strrchr(last, '\\') + 1;
1795 if (last == src && strchr(src, ':') != NULL)
1796 last = strchr(src, ':') + 1;
1798 /* maybe send filetime */
1800 save_target = scp_save_remotepath();
1803 tell_user(stderr, "Entering directory: %s", last);
1804 if (scp_send_dirname(last, 0755))
1807 dir = open_directory(src);
1810 while ((filename = read_filename(dir)) != NULL) {
1811 char *foundfile = dupcat(src, "/", filename, NULL);
1817 close_directory(dir);
1819 (void) scp_send_enddir();
1821 scp_restore_remotepath(save_target);
1825 * Execute the sink part of the SCP protocol.
1827 static void sink(char *targ, char *src)
1837 time_t stat_starttime, stat_lasttime;
1840 attr = file_type(targ);
1841 if (attr == FILE_TYPE_DIRECTORY)
1844 if (targetshouldbedirectory && !targisdir)
1845 bump("%s: Not a directory", targ);
1849 struct scp_sink_action act;
1850 if (scp_get_sink_action(&act))
1853 if (act.action == SCP_SINK_ENDDIR)
1856 if (act.action == SCP_SINK_RETRY)
1861 * Prevent the remote side from maliciously writing to
1862 * files outside the target area by sending a filename
1863 * containing `../'. In fact, it shouldn't be sending
1864 * filenames with any slashes or colons in at all; so
1865 * we'll find the last slash, backslash or colon in the
1866 * filename and use only the part after that. (And
1869 * In addition, we also ensure here that if we're
1870 * copying a single file and the target is a directory
1871 * (common usage: `pscp host:filename .') the remote
1872 * can't send us a _different_ file name. We can
1873 * distinguish this case because `src' will be non-NULL
1874 * and the last component of that will fail to match
1875 * (the last component of) the name sent.
1877 * Well, not always; if `src' is a wildcard, we do
1878 * expect to get back filenames that don't correspond
1879 * exactly to it. Ideally in this case, we would like
1880 * to ensure that the returned filename actually
1881 * matches the wildcard pattern - but one of SCP's
1882 * protocol infelicities is that wildcard matching is
1883 * done at the server end _by the server's rules_ and
1884 * so in general this is infeasible. Hence, we only
1885 * accept filenames that don't correspond to `src' if
1886 * unsafe mode is enabled or we are using SFTP (which
1887 * resolves remote wildcards on the client side and can
1890 char *striptarget, *stripsrc;
1892 striptarget = stripslashes(act.name, 1);
1893 if (striptarget != act.name) {
1894 tell_user(stderr, "warning: remote host sent a compound"
1895 " pathname '%s'", act.name);
1896 tell_user(stderr, " renaming local file to '%s'",
1901 * Also check to see if the target filename is '.' or
1902 * '..', or indeed '...' and so on because Windows
1903 * appears to interpret those like '..'.
1905 if (is_dots(striptarget)) {
1906 bump("security violation: remote host attempted to write to"
1907 " a '.' or '..' path!");
1911 stripsrc = stripslashes(src, 1);
1912 if (strcmp(striptarget, stripsrc) &&
1913 !using_sftp && !scp_unsafe_mode) {
1914 tell_user(stderr, "warning: remote host tried to write "
1915 "to a file called '%s'", striptarget);
1916 tell_user(stderr, " when we requested a file "
1917 "called '%s'.", stripsrc);
1918 tell_user(stderr, " If this is a wildcard, "
1919 "consider upgrading to SSH-2 or using");
1920 tell_user(stderr, " the '-unsafe' option. Renaming"
1921 " of this file has been disallowed.");
1922 /* Override the name the server provided with our own. */
1923 striptarget = stripsrc;
1927 if (targ[0] != '\0')
1928 destfname = dir_file_cat(targ, striptarget);
1930 destfname = dupstr(striptarget);
1933 * In this branch of the if, the target area is a
1934 * single file with an explicitly specified name in any
1935 * case, so there's no danger.
1937 destfname = dupstr(targ);
1939 attr = file_type(destfname);
1940 exists = (attr != FILE_TYPE_NONEXISTENT);
1942 if (act.action == SCP_SINK_DIR) {
1943 if (exists && attr != FILE_TYPE_DIRECTORY) {
1944 run_err("%s: Not a directory", destfname);
1949 if (!create_directory(destfname)) {
1950 run_err("%s: Cannot create directory", destfname);
1955 sink(destfname, NULL);
1956 /* can we set the timestamp for directories ? */
1961 f = open_new_file(destfname, act.permissions);
1963 run_err("%s: Cannot create file", destfname);
1968 if (scp_accept_filexfer()) {
1974 stat_bytes = uint64_make(0, 0);
1975 stat_starttime = time(NULL);
1977 stat_name = stripslashes(destfname, 1);
1979 received = uint64_make(0, 0);
1980 while (uint64_compare(received,act.size) < 0) {
1981 char transbuf[32768];
1984 blksize = uint64_make(0, 32768);
1985 if (uint64_compare(blksize,uint64_subtract(act.size,received)) > 0)
1986 blksize = uint64_subtract(act.size,received);
1987 read = scp_recv_filedata(transbuf, (int)blksize.lo);
1989 bump("Lost connection");
1992 if (write_to_file(f, transbuf, read) != (int)read) {
1994 /* FIXME: in sftp we can actually abort the transfer */
1996 printf("\r%-25.25s | %50s\n",
1998 "Write error.. waiting for end of file");
2002 stat_bytes = uint64_add32(stat_bytes,read);
2003 if (time(NULL) > stat_lasttime ||
2004 uint64_compare(uint64_add32(received, read), act.size) == 0) {
2005 stat_lasttime = time(NULL);
2006 print_stats(stat_name, act.size, stat_bytes,
2007 stat_starttime, stat_lasttime);
2010 received = uint64_add32(received, read);
2013 set_file_times(f, act.mtime, act.atime);
2019 run_err("%s: Write error", destfname);
2023 (void) scp_finish_filerecv();
2030 * We will copy local files to a remote server.
2032 static void toremote(int argc, char *argv[])
2034 char *src, *targ, *host, *user;
2038 targ = argv[argc - 1];
2040 /* Separate host from filename */
2044 bump("targ == NULL in toremote()");
2048 /* Substitute "." for empty target */
2050 /* Separate host and username */
2052 host = strrchr(host, '@');
2063 if (colon(argv[0]) != NULL)
2064 bump("%s: Remote to remote not supported", argv[0]);
2066 wc_type = test_wildcard(argv[0], 1);
2067 if (wc_type == WCTYPE_NONEXISTENT)
2068 bump("%s: No such file or directory\n", argv[0]);
2069 else if (wc_type == WCTYPE_WILDCARD)
2070 targetshouldbedirectory = 1;
2073 cmd = dupprintf("scp%s%s%s%s -t %s",
2074 verbose ? " -v" : "",
2075 recursive ? " -r" : "",
2076 preserve ? " -p" : "",
2077 targetshouldbedirectory ? " -d" : "", targ);
2078 do_cmd(host, user, cmd);
2081 if (scp_source_setup(targ, targetshouldbedirectory))
2084 for (i = 0; i < argc - 1; i++) {
2086 if (colon(src) != NULL) {
2087 tell_user(stderr, "%s: Remote to remote not supported\n", src);
2092 wc_type = test_wildcard(src, 1);
2093 if (wc_type == WCTYPE_NONEXISTENT) {
2094 run_err("%s: No such file or directory", src);
2096 } else if (wc_type == WCTYPE_FILENAME) {
2100 WildcardMatcher *wc;
2103 wc = begin_wildcard_matching(src);
2105 run_err("%s: No such file or directory", src);
2109 while ((filename = wildcard_get_filename(wc)) != NULL) {
2114 finish_wildcard_matching(wc);
2120 * We will copy files from a remote server to the local machine.
2122 static void tolocal(int argc, char *argv[])
2124 char *src, *targ, *host, *user;
2128 bump("More than one remote source not supported");
2133 /* Separate host from filename */
2137 bump("Local to local copy not supported");
2141 /* Substitute "." for empty filename */
2143 /* Separate username and hostname */
2145 host = strrchr(host, '@');
2155 cmd = dupprintf("scp%s%s%s%s -f %s",
2156 verbose ? " -v" : "",
2157 recursive ? " -r" : "",
2158 preserve ? " -p" : "",
2159 targetshouldbedirectory ? " -d" : "", src);
2160 do_cmd(host, user, cmd);
2163 if (scp_sink_setup(src, preserve, recursive))
2170 * We will issue a list command to get a remote directory.
2172 static void get_dir_list(int argc, char *argv[])
2174 char *src, *host, *user;
2180 /* Separate host from filename */
2184 bump("Local file listing not supported");
2188 /* Substitute "." for empty filename */
2190 /* Separate username and hostname */
2192 host = strrchr(host, '@');
2202 cmd = snewn(4 * strlen(src) + 100, char);
2203 strcpy(cmd, "ls -la '");
2204 p = cmd + strlen(cmd);
2205 for (q = src; *q; q++) {
2218 do_cmd(host, user, cmd);
2222 scp_sftp_listdir(src);
2224 while (ssh_scp_recv((unsigned char *) &c, 1) > 0)
2225 tell_char(stdout, c);
2230 * Short description of parameters.
2232 static void usage(void)
2234 printf("PuTTY Secure Copy client\n");
2235 printf("%s\n", ver);
2236 printf("Usage: pscp [options] [user@]host:source target\n");
2238 (" pscp [options] source [source...] [user@]host:target\n");
2239 printf(" pscp [options] -ls [user@]host:filespec\n");
2240 printf("Options:\n");
2241 printf(" -V print version information and exit\n");
2242 printf(" -pgpfp print PGP key fingerprints and exit\n");
2243 printf(" -p preserve file attributes\n");
2244 printf(" -q quiet, don't show statistics\n");
2245 printf(" -r copy directories recursively\n");
2246 printf(" -v show verbose messages\n");
2247 printf(" -load sessname Load settings from saved session\n");
2248 printf(" -P port connect to specified port\n");
2249 printf(" -l user connect with specified username\n");
2250 printf(" -pw passw login with specified password\n");
2251 printf(" -1 -2 force use of particular SSH protocol version\n");
2252 printf(" -4 -6 force use of IPv4 or IPv6\n");
2253 printf(" -C enable compression\n");
2254 printf(" -i key private key file for authentication\n");
2255 printf(" -noagent disable use of Pageant\n");
2256 printf(" -agent enable use of Pageant\n");
2257 printf(" -batch disable all interactive prompts\n");
2258 printf(" -unsafe allow server-side wildcards (DANGEROUS)\n");
2259 printf(" -sftp force use of SFTP protocol\n");
2260 printf(" -scp force use of SCP protocol\n");
2263 * -gui is an internal option, used by GUI front ends to get
2264 * pscp to pass progress reports back to them. It's not an
2265 * ordinary user-accessible option, so it shouldn't be part of
2266 * the command-line help. The only people who need to know
2267 * about it are programmers, and they can read the source.
2270 (" -gui hWnd GUI mode with the windows handle for receiving messages\n");
2277 printf("pscp: %s\n", ver);
2281 void cmdline_error(char *p, ...)
2284 fprintf(stderr, "pscp: ");
2286 vfprintf(stderr, p, ap);
2288 fprintf(stderr, "\n try typing just \"pscp\" for help\n");
2293 * Main program. (Called `psftp_main' because it gets called from
2294 * *sftp.c; bit silly, I know, but it had to be called _something_.)
2296 int psftp_main(int argc, char *argv[])
2300 default_protocol = PROT_TELNET;
2303 #ifdef FLAG_SYNCAGENT
2307 cmdline_tooltype = TOOLTYPE_FILETRANSFER;
2310 /* Load Default Settings before doing anything else. */
2312 do_defaults(NULL, conf);
2313 loaded_session = FALSE;
2315 for (i = 1; i < argc; i++) {
2317 if (argv[i][0] != '-')
2319 ret = cmdline_process_param(argv[i], i+1<argc?argv[i+1]:NULL, 1, conf);
2321 cmdline_error("option \"%s\" requires an argument", argv[i]);
2322 } else if (ret == 2) {
2323 i++; /* skip next argument */
2324 } else if (ret == 1) {
2325 /* We have our own verbosity in addition to `flags'. */
2326 if (flags & FLAG_VERBOSE)
2328 } else if (strcmp(argv[i], "-pgpfp") == 0) {
2331 } else if (strcmp(argv[i], "-r") == 0) {
2333 } else if (strcmp(argv[i], "-p") == 0) {
2335 } else if (strcmp(argv[i], "-q") == 0) {
2337 } else if (strcmp(argv[i], "-h") == 0 ||
2338 strcmp(argv[i], "-?") == 0 ||
2339 strcmp(argv[i], "--help") == 0) {
2341 } else if (strcmp(argv[i], "-V") == 0 ||
2342 strcmp(argv[i], "--version") == 0) {
2344 } else if (strcmp(argv[i], "-ls") == 0) {
2346 } else if (strcmp(argv[i], "-batch") == 0) {
2347 console_batch_mode = 1;
2348 } else if (strcmp(argv[i], "-unsafe") == 0) {
2349 scp_unsafe_mode = 1;
2350 } else if (strcmp(argv[i], "-sftp") == 0) {
2351 try_scp = 0; try_sftp = 1;
2352 } else if (strcmp(argv[i], "-scp") == 0) {
2353 try_scp = 1; try_sftp = 0;
2354 } else if (strcmp(argv[i], "--") == 0) {
2358 cmdline_error("unknown option \"%s\"", argv[i]);
2368 get_dir_list(argc, argv);
2375 targetshouldbedirectory = 1;
2377 if (colon(argv[argc - 1]) != NULL)
2378 toremote(argc, argv);
2380 tolocal(argc, argv);
2383 if (back != NULL && back->connected(backhandle)) {
2385 back->special(backhandle, TS_EOF);
2387 ssh_scp_recv((unsigned char *) &ch, 1);
2392 console_provide_logctx(NULL);
2393 back->free(backhandle);
2397 return (errs == 0 ? 0 : 1);