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_send(void *handle, char *buf, int len, int interactive)
66 * This is only here because of the calls to ldisc_send(NULL,
67 * 0) in ssh.c. Nothing in PSCP actually needs to use the ldisc
68 * as an ldisc. So if we get called with any real data, I want
74 static void tell_char(FILE * stream, char c)
79 static void tell_str(FILE * stream, char *str)
83 for (i = 0; i < strlen(str); ++i)
84 tell_char(stream, str[i]);
87 static void tell_user(FILE * stream, char *fmt, ...)
92 str = dupvprintf(fmt, ap);
94 str2 = dupcat(str, "\n", NULL);
96 tell_str(stream, str2);
101 * Print an error message and perform a fatal exit.
103 void fatalbox(char *fmt, ...)
108 str = dupvprintf(fmt, ap);
109 str2 = dupcat("Fatal: ", str, "\n", NULL);
112 tell_str(stderr, str2);
118 void modalfatalbox(char *fmt, ...)
123 str = dupvprintf(fmt, ap);
124 str2 = dupcat("Fatal: ", str, "\n", NULL);
127 tell_str(stderr, str2);
133 void nonfatal(char *fmt, ...)
138 str = dupvprintf(fmt, ap);
139 str2 = dupcat("Error: ", str, "\n", NULL);
142 tell_str(stderr, str2);
146 void connection_fatal(void *frontend, char *fmt, ...)
151 str = dupvprintf(fmt, ap);
152 str2 = dupcat("Fatal: ", str, "\n", NULL);
155 tell_str(stderr, str2);
163 * In pscp, all agent requests should be synchronous, so this is a
166 void agent_schedule_callback(void (*callback)(void *, void *, int),
167 void *callback_ctx, void *data, int len)
169 assert(!"We shouldn't be here");
173 * Receive a block of data from the SSH link. Block until all data
176 * To do this, we repeatedly call the SSH protocol module, with our
177 * own trap in from_backend() to catch the data that comes back. We
178 * do this until we have enough data.
181 static unsigned char *outptr; /* where to put the data */
182 static unsigned outlen; /* how much data required */
183 static unsigned char *pending = NULL; /* any spare data */
184 static unsigned pendlen = 0, pendsize = 0; /* length and phys. size of buffer */
185 int from_backend(void *frontend, int is_stderr, const char *data, int datalen)
187 unsigned char *p = (unsigned char *) data;
188 unsigned len = (unsigned) datalen;
191 * stderr data is just spouted to local stderr and otherwise
196 if (fwrite(data, 1, len, stderr) < len)
201 if ((outlen > 0) && (len > 0)) {
202 unsigned used = outlen;
205 memcpy(outptr, p, used);
213 if (pendsize < pendlen + len) {
214 pendsize = pendlen + len + 4096;
215 pending = sresize(pending, pendsize, unsigned char);
217 memcpy(pending + pendlen, p, len);
223 int from_backend_untrusted(void *frontend_handle, const char *data, int len)
226 * No "untrusted" output should get here (the way the code is
227 * currently, it's all diverted by FLAG_STDERR).
229 assert(!"Unexpected call to from_backend_untrusted()");
230 return 0; /* not reached */
232 int from_backend_eof(void *frontend)
235 * We usually expect to be the party deciding when to close the
236 * connection, so if we see EOF before we sent it ourselves, we
237 * should panic. The exception is if we're using old-style scp and
238 * downloading rather than uploading.
240 if ((using_sftp || uploading) && !sent_eof) {
241 connection_fatal(frontend,
242 "Received unexpected end-of-file from server");
246 static int ssh_scp_recv(unsigned char *buf, int len)
252 * See if the pending-input block contains some of what we
256 unsigned pendused = pendlen;
257 if (pendused > outlen)
259 memcpy(outptr, pending, pendused);
260 memmove(pending, pending + pendused, pendlen - pendused);
274 if (back->exitcode(backhandle) >= 0 || ssh_sftp_loop_iteration() < 0)
282 * Loop through the ssh connection and authentication process.
284 static void ssh_scp_init(void)
286 while (!back->sendok(backhandle)) {
287 if (back->exitcode(backhandle) >= 0) {
291 if (ssh_sftp_loop_iteration() < 0) {
297 /* Work out which backend we ended up using. */
298 if (!ssh_fallback_cmd(backhandle))
299 using_sftp = main_cmd_is_sftp;
301 using_sftp = fallback_cmd_is_sftp;
305 tell_user(stderr, "Using SFTP");
307 tell_user(stderr, "Using SCP1");
312 * Print an error message and exit after closing the SSH link.
314 static void bump(char *fmt, ...)
319 str = dupvprintf(fmt, ap);
321 str2 = dupcat(str, "\n", NULL);
323 tell_str(stderr, str2);
327 if (back != NULL && back->connected(backhandle)) {
329 back->special(backhandle, TS_EOF);
331 ssh_scp_recv((unsigned char *) &ch, 1);
338 * Wait for the reply to a single SFTP request. Parallels the same
339 * function in psftp.c (but isn't centralised into sftp.c because the
340 * latter module handles SFTP only and shouldn't assume that SFTP is
341 * the only thing going on by calling connection_fatal).
343 struct sftp_packet *sftp_wait_for_reply(struct sftp_request *req)
345 struct sftp_packet *pktin;
346 struct sftp_request *rreq;
351 connection_fatal(NULL, "did not receive SFTP response packet "
353 rreq = sftp_find_request(pktin);
355 connection_fatal(NULL, "unable to understand SFTP response packet "
356 "from server: %s", fxp_error());
361 * Open an SSH connection to user@host and execute cmd.
363 static void do_cmd(char *host, char *user, char *cmd)
369 if (host == NULL || host[0] == '\0')
370 bump("Empty host name");
373 * Remove a colon suffix.
375 host[host_strcspn(host, ":")] = '\0';
378 * If we haven't loaded session details already (e.g., from -load),
379 * try looking for a session called "host".
381 if (!loaded_session) {
382 /* Try to load settings for `host' into a temporary config */
383 Conf *conf2 = conf_new();
384 conf_set_str(conf2, CONF_host, "");
385 do_defaults(host, conf2);
386 if (conf_get_str(conf2, CONF_host)[0] != '\0') {
387 /* Settings present and include hostname */
388 /* Re-load data into the real config. */
389 do_defaults(host, conf);
391 /* Session doesn't exist or mention a hostname. */
392 /* Use `host' as a bare hostname. */
393 conf_set_str(conf, CONF_host, host);
396 /* Patch in hostname `host' to session details. */
397 conf_set_str(conf, CONF_host, host);
401 * Force use of SSH. (If they got the protocol wrong we assume the
402 * port is useless too.)
404 if (conf_get_int(conf, CONF_protocol) != PROT_SSH) {
405 conf_set_int(conf, CONF_protocol, PROT_SSH);
406 conf_set_int(conf, CONF_port, 22);
410 * Enact command-line overrides.
412 cmdline_run_saved(conf);
415 * Muck about with the hostname in various ways.
418 char *hostbuf = dupstr(conf_get_str(conf, CONF_host));
419 char *host = hostbuf;
423 * Trim leading whitespace.
425 host += strspn(host, " \t");
428 * See if host is of the form user@host, and separate out
429 * the username if so.
431 if (host[0] != '\0') {
432 char *atsign = strrchr(host, '@');
435 conf_set_str(conf, CONF_username, host);
441 * Remove any remaining whitespace.
446 if (*q != ' ' && *q != '\t')
452 conf_set_str(conf, CONF_host, hostbuf);
457 if (user != NULL && user[0] != '\0') {
458 conf_set_str(conf, CONF_username, user);
459 } else if (conf_get_str(conf, CONF_username)[0] == '\0') {
460 user = get_username();
462 bump("Empty user name");
465 tell_user(stderr, "Guessing user name: %s", user);
466 conf_set_str(conf, CONF_username, user);
472 * Disable scary things which shouldn't be enabled for simple
473 * things like SCP and SFTP: agent forwarding, port forwarding,
476 conf_set_int(conf, CONF_x11_forward, 0);
477 conf_set_int(conf, CONF_agentfwd, 0);
478 conf_set_int(conf, CONF_ssh_simple, TRUE);
481 while ((key = conf_get_str_nthstrkey(conf, CONF_portfwd, 0)) != NULL)
482 conf_del_str_str(conf, CONF_portfwd, key);
486 * Set up main and possibly fallback command depending on
487 * options specified by user.
488 * Attempt to start the SFTP subsystem as a first choice,
489 * falling back to the provided scp command if that fails.
491 conf_set_str(conf, CONF_remote_cmd2, "");
493 /* First choice is SFTP subsystem. */
494 main_cmd_is_sftp = 1;
495 conf_set_str(conf, CONF_remote_cmd, "sftp");
496 conf_set_int(conf, CONF_ssh_subsys, TRUE);
498 /* Fallback is to use the provided scp command. */
499 fallback_cmd_is_sftp = 0;
500 conf_set_str(conf, CONF_remote_cmd2, cmd);
501 conf_set_int(conf, CONF_ssh_subsys2, FALSE);
503 /* Since we're not going to try SCP, we may as well try
504 * harder to find an SFTP server, since in the current
505 * implementation we have a spare slot. */
506 fallback_cmd_is_sftp = 1;
507 /* see psftp.c for full explanation of this kludge */
508 conf_set_str(conf, CONF_remote_cmd2,
509 "test -x /usr/lib/sftp-server &&"
510 " exec /usr/lib/sftp-server\n"
511 "test -x /usr/local/lib/sftp-server &&"
512 " exec /usr/local/lib/sftp-server\n"
514 conf_set_int(conf, CONF_ssh_subsys2, FALSE);
517 /* Don't try SFTP at all; just try the scp command. */
518 main_cmd_is_sftp = 0;
519 conf_set_str(conf, CONF_remote_cmd, cmd);
520 conf_set_int(conf, CONF_ssh_subsys, FALSE);
522 conf_set_int(conf, CONF_nopty, TRUE);
526 err = back->init(NULL, &backhandle, conf,
527 conf_get_str(conf, CONF_host),
528 conf_get_int(conf, CONF_port),
530 conf_get_int(conf, CONF_tcp_keepalives));
532 bump("ssh_init: %s", err);
533 logctx = log_init(NULL, conf);
534 back->provide_logctx(backhandle, logctx);
535 console_provide_logctx(logctx);
537 if (verbose && realhost != NULL && errs == 0)
538 tell_user(stderr, "Connected to %s", realhost);
543 * Update statistic information about current file.
545 static void print_stats(char *name, uint64 size, uint64 done,
546 time_t start, time_t now)
557 elap = (unsigned long) difftime(now, start);
560 ratebs = (float) (uint64_to_double(done) / elap);
562 ratebs = (float) uint64_to_double(done);
565 eta = (unsigned long) (uint64_to_double(uint64_subtract(size, done)));
567 eta = (unsigned long)
568 ((uint64_to_double(uint64_subtract(size, done)) / ratebs));
571 etastr = dupprintf("%02ld:%02ld:%02ld",
572 eta / 3600, (eta % 3600) / 60, eta % 60);
574 donedbl = uint64_to_double(done);
575 sizedbl = uint64_to_double(size);
576 pct = (int) (100 * (donedbl * 1.0 / sizedbl));
580 /* divide by 1024 to provide kB */
581 uint64_decimal(uint64_shift_right(done, 10), donekb);
582 len = printf("\r%-25.25s | %s kB | %5.1f kB/s | ETA: %8s | %3d%%",
584 donekb, ratebs / 1024.0, etastr, pct);
585 if (len < prev_stats_len)
586 printf("%*s", prev_stats_len - len, "");
587 prev_stats_len = len;
589 if (uint64_compare(done, size) == 0)
599 * Find a colon in str and return a pointer to the colon.
600 * This is used to separate hostname from filename.
602 static char *colon(char *str)
604 /* We ignore a leading colon, since the hostname cannot be
605 empty. We also ignore a colon as second character because
606 of filenames like f:myfile.txt. */
607 if (str[0] == '\0' || str[0] == ':' ||
608 (str[0] != '[' && str[1] == ':'))
610 str += host_strcspn(str, ":/\\");
618 * Return a pointer to the portion of str that comes after the last
619 * slash (or backslash or colon, if `local' is TRUE).
621 static char *stripslashes(char *str, int local)
626 p = strchr(str, ':');
630 p = strrchr(str, '/');
634 p = strrchr(str, '\\');
642 * Determine whether a string is entirely composed of dots.
644 static int is_dots(char *str)
646 return str[strspn(str, ".")] == '\0';
650 * Wait for a response from the other side.
651 * Return 0 if ok, -1 if error.
653 static int response(void)
655 char ch, resp, rbuf[2048];
658 if (ssh_scp_recv((unsigned char *) &resp, 1) <= 0)
659 bump("Lost connection");
669 case 2: /* fatal error */
671 if (ssh_scp_recv((unsigned char *) &ch, 1) <= 0)
672 bump("Protocol error: Lost connection");
674 } while (p < sizeof(rbuf) && ch != '\n');
677 tell_user(stderr, "%s", rbuf);
685 int sftp_recvdata(char *buf, int len)
687 return ssh_scp_recv((unsigned char *) buf, len);
689 int sftp_senddata(char *buf, int len)
691 back->send(backhandle, buf, len);
695 /* ----------------------------------------------------------------------
696 * sftp-based replacement for the hacky `pscp -ls'.
698 static int sftp_ls_compare(const void *av, const void *bv)
700 const struct fxp_name *a = (const struct fxp_name *) av;
701 const struct fxp_name *b = (const struct fxp_name *) bv;
702 return strcmp(a->filename, b->filename);
704 void scp_sftp_listdir(char *dirname)
706 struct fxp_handle *dirh;
707 struct fxp_names *names;
708 struct fxp_name *ournames;
709 struct sftp_packet *pktin;
710 struct sftp_request *req;
711 int nnames, namesize;
715 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
720 printf("Listing directory %s\n", dirname);
722 req = fxp_opendir_send(dirname);
723 pktin = sftp_wait_for_reply(req);
724 dirh = fxp_opendir_recv(pktin, req);
727 printf("Unable to open %s: %s\n", dirname, fxp_error());
729 nnames = namesize = 0;
734 req = fxp_readdir_send(dirh);
735 pktin = sftp_wait_for_reply(req);
736 names = fxp_readdir_recv(pktin, req);
739 if (fxp_error_type() == SSH_FX_EOF)
741 printf("Reading directory %s: %s\n", dirname, fxp_error());
744 if (names->nnames == 0) {
745 fxp_free_names(names);
749 if (nnames + names->nnames >= namesize) {
750 namesize += names->nnames + 128;
751 ournames = sresize(ournames, namesize, struct fxp_name);
754 for (i = 0; i < names->nnames; i++)
755 ournames[nnames++] = names->names[i];
756 names->nnames = 0; /* prevent free_names */
757 fxp_free_names(names);
759 req = fxp_close_send(dirh);
760 pktin = sftp_wait_for_reply(req);
761 fxp_close_recv(pktin, req);
764 * Now we have our filenames. Sort them by actual file
765 * name, and then output the longname parts.
768 qsort(ournames, nnames, sizeof(*ournames), sftp_ls_compare);
773 for (i = 0; i < nnames; i++)
774 printf("%s\n", ournames[i].longname);
780 /* ----------------------------------------------------------------------
781 * Helper routines that contain the actual SCP protocol elements,
782 * implemented both as SCP1 and SFTP.
785 static struct scp_sftp_dirstack {
786 struct scp_sftp_dirstack *next;
787 struct fxp_name *names;
788 int namepos, namelen;
791 int matched_something; /* wildcard match set was non-empty */
792 } *scp_sftp_dirstack_head;
793 static char *scp_sftp_remotepath, *scp_sftp_currentname;
794 static char *scp_sftp_wildcard;
795 static int scp_sftp_targetisdir, scp_sftp_donethistarget;
796 static int scp_sftp_preserve, scp_sftp_recursive;
797 static unsigned long scp_sftp_mtime, scp_sftp_atime;
798 static int scp_has_times;
799 static struct fxp_handle *scp_sftp_filehandle;
800 static struct fxp_xfer *scp_sftp_xfer;
801 static uint64 scp_sftp_fileoffset;
803 int scp_source_setup(char *target, int shouldbedir)
807 * Find out whether the target filespec is in fact a
810 struct sftp_packet *pktin;
811 struct sftp_request *req;
812 struct fxp_attrs attrs;
816 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
821 req = fxp_stat_send(target);
822 pktin = sftp_wait_for_reply(req);
823 ret = fxp_stat_recv(pktin, req, &attrs);
825 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS))
826 scp_sftp_targetisdir = 0;
828 scp_sftp_targetisdir = (attrs.permissions & 0040000) != 0;
830 if (shouldbedir && !scp_sftp_targetisdir) {
831 bump("pscp: remote filespec %s: not a directory\n", target);
834 scp_sftp_remotepath = dupstr(target);
843 int scp_send_errmsg(char *str)
846 /* do nothing; we never need to send our errors to the server */
848 back->send(backhandle, "\001", 1);/* scp protocol error prefix */
849 back->send(backhandle, str, strlen(str));
851 return 0; /* can't fail */
854 int scp_send_filetimes(unsigned long mtime, unsigned long atime)
857 scp_sftp_mtime = mtime;
858 scp_sftp_atime = atime;
863 sprintf(buf, "T%lu 0 %lu 0\n", mtime, atime);
864 back->send(backhandle, buf, strlen(buf));
869 int scp_send_filename(char *name, uint64 size, int permissions)
873 struct sftp_packet *pktin;
874 struct sftp_request *req;
875 struct fxp_attrs attrs;
877 if (scp_sftp_targetisdir) {
878 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
880 fullname = dupstr(scp_sftp_remotepath);
884 PUT_PERMISSIONS(attrs, permissions);
886 req = fxp_open_send(fullname,
887 SSH_FXF_WRITE | SSH_FXF_CREAT | SSH_FXF_TRUNC,
889 pktin = sftp_wait_for_reply(req);
890 scp_sftp_filehandle = fxp_open_recv(pktin, req);
892 if (!scp_sftp_filehandle) {
893 tell_user(stderr, "pscp: unable to open %s: %s",
894 fullname, fxp_error());
899 scp_sftp_fileoffset = uint64_make(0, 0);
900 scp_sftp_xfer = xfer_upload_init(scp_sftp_filehandle,
901 scp_sftp_fileoffset);
907 uint64_decimal(size, sizestr);
910 sprintf(buf, "C%04o %s ", (int)(permissions & 07777), sizestr);
911 back->send(backhandle, buf, strlen(buf));
912 back->send(backhandle, name, strlen(name));
913 back->send(backhandle, "\n", 1);
918 int scp_send_filedata(char *data, int len)
922 struct sftp_packet *pktin;
924 if (!scp_sftp_filehandle) {
928 while (!xfer_upload_ready(scp_sftp_xfer)) {
930 ret = xfer_upload_gotpkt(scp_sftp_xfer, pktin);
932 tell_user(stderr, "error while writing: %s", fxp_error());
933 if (ret == INT_MIN) /* pktin not even freed */
940 xfer_upload_data(scp_sftp_xfer, data, len);
942 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, len);
945 int bufsize = back->send(backhandle, data, len);
948 * If the network transfer is backing up - that is, the
949 * remote site is not accepting data as fast as we can
950 * produce it - then we must loop on network events until
951 * we have space in the buffer again.
953 while (bufsize > MAX_SCP_BUFSIZE) {
954 if (ssh_sftp_loop_iteration() < 0)
956 bufsize = back->sendbuffer(backhandle);
963 int scp_send_finish(void)
966 struct fxp_attrs attrs;
967 struct sftp_packet *pktin;
968 struct sftp_request *req;
971 while (!xfer_done(scp_sftp_xfer)) {
973 ret = xfer_upload_gotpkt(scp_sftp_xfer, pktin);
975 tell_user(stderr, "error while writing: %s", fxp_error());
976 if (ret == INT_MIN) /* pktin not even freed */
982 xfer_cleanup(scp_sftp_xfer);
984 if (!scp_sftp_filehandle) {
988 attrs.flags = SSH_FILEXFER_ATTR_ACMODTIME;
989 attrs.atime = scp_sftp_atime;
990 attrs.mtime = scp_sftp_mtime;
991 req = fxp_fsetstat_send(scp_sftp_filehandle, attrs);
992 pktin = sftp_wait_for_reply(req);
993 ret = fxp_fsetstat_recv(pktin, req);
995 tell_user(stderr, "unable to set file times: %s", fxp_error());
999 req = fxp_close_send(scp_sftp_filehandle);
1000 pktin = sftp_wait_for_reply(req);
1001 fxp_close_recv(pktin, req);
1005 back->send(backhandle, "", 1);
1010 char *scp_save_remotepath(void)
1013 return scp_sftp_remotepath;
1018 void scp_restore_remotepath(char *data)
1021 scp_sftp_remotepath = data;
1024 int scp_send_dirname(char *name, int modes)
1029 struct fxp_attrs attrs;
1030 struct sftp_packet *pktin;
1031 struct sftp_request *req;
1034 if (scp_sftp_targetisdir) {
1035 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
1037 fullname = dupstr(scp_sftp_remotepath);
1041 * We don't worry about whether we managed to create the
1042 * directory, because if it exists already it's OK just to
1043 * use it. Instead, we will stat it afterwards, and if it
1044 * exists and is a directory we will assume we were either
1045 * successful or it didn't matter.
1047 req = fxp_mkdir_send(fullname);
1048 pktin = sftp_wait_for_reply(req);
1049 ret = fxp_mkdir_recv(pktin, req);
1054 err = "server reported no error";
1056 req = fxp_stat_send(fullname);
1057 pktin = sftp_wait_for_reply(req);
1058 ret = fxp_stat_recv(pktin, req, &attrs);
1060 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) ||
1061 !(attrs.permissions & 0040000)) {
1062 tell_user(stderr, "unable to create directory %s: %s",
1069 scp_sftp_remotepath = fullname;
1074 sprintf(buf, "D%04o 0 ", modes);
1075 back->send(backhandle, buf, strlen(buf));
1076 back->send(backhandle, name, strlen(name));
1077 back->send(backhandle, "\n", 1);
1082 int scp_send_enddir(void)
1085 sfree(scp_sftp_remotepath);
1088 back->send(backhandle, "E\n", 2);
1094 * Yes, I know; I have an scp_sink_setup _and_ an scp_sink_init.
1095 * That's bad. The difference is that scp_sink_setup is called once
1096 * right at the start, whereas scp_sink_init is called to
1097 * initialise every level of recursion in the protocol.
1099 int scp_sink_setup(char *source, int preserve, int recursive)
1105 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
1110 * It's possible that the source string we've been given
1111 * contains a wildcard. If so, we must split the directory
1112 * away from the wildcard itself (throwing an error if any
1113 * wildcardness comes before the final slash) and arrange
1114 * things so that a dirstack entry will be set up.
1116 newsource = snewn(1+strlen(source), char);
1117 if (!wc_unescape(newsource, source)) {
1118 /* Yes, here we go; it's a wildcard. Bah. */
1119 char *dupsource, *lastpart, *dirpart, *wildcard;
1123 dupsource = dupstr(source);
1124 lastpart = stripslashes(dupsource, 0);
1125 wildcard = dupstr(lastpart);
1127 if (*dupsource && dupsource[1]) {
1129 * The remains of dupsource are at least two
1130 * characters long, meaning the pathname wasn't
1131 * empty or just `/'. Hence, we remove the trailing
1134 lastpart[-1] = '\0';
1135 } else if (!*dupsource) {
1137 * The remains of dupsource are _empty_ - the whole
1138 * pathname was a wildcard. Hence we need to
1139 * replace it with ".".
1142 dupsource = dupstr(".");
1146 * Now we have separated our string into dupsource (the
1147 * directory part) and wildcard. Both of these will
1148 * need freeing at some point. Next step is to remove
1149 * wildcard escapes from the directory part, throwing
1150 * an error if it contains a real wildcard.
1152 dirpart = snewn(1+strlen(dupsource), char);
1153 if (!wc_unescape(dirpart, dupsource)) {
1154 tell_user(stderr, "%s: multiple-level wildcards unsupported",
1164 * Now we have dirpart (unescaped, ie a valid remote
1165 * path), and wildcard (a wildcard). This will be
1166 * sufficient to arrange a dirstack entry.
1168 scp_sftp_remotepath = dirpart;
1169 scp_sftp_wildcard = wildcard;
1172 scp_sftp_remotepath = newsource;
1173 scp_sftp_wildcard = NULL;
1175 scp_sftp_preserve = preserve;
1176 scp_sftp_recursive = recursive;
1177 scp_sftp_donethistarget = 0;
1178 scp_sftp_dirstack_head = NULL;
1183 int scp_sink_init(void)
1186 back->send(backhandle, "", 1);
1191 #define SCP_SINK_FILE 1
1192 #define SCP_SINK_DIR 2
1193 #define SCP_SINK_ENDDIR 3
1194 #define SCP_SINK_RETRY 4 /* not an action; just try again */
1195 struct scp_sink_action {
1196 int action; /* FILE, DIR, ENDDIR */
1197 char *buf; /* will need freeing after use */
1198 char *name; /* filename or dirname (not ENDDIR) */
1199 long permissions; /* access permissions (not ENDDIR) */
1200 uint64 size; /* file size (not ENDDIR) */
1201 int settime; /* 1 if atime and mtime are filled */
1202 unsigned long atime, mtime; /* access times for the file */
1205 int scp_get_sink_action(struct scp_sink_action *act)
1209 int must_free_fname;
1210 struct fxp_attrs attrs;
1211 struct sftp_packet *pktin;
1212 struct sftp_request *req;
1215 if (!scp_sftp_dirstack_head) {
1216 if (!scp_sftp_donethistarget) {
1218 * Simple case: we are only dealing with one file.
1220 fname = scp_sftp_remotepath;
1221 must_free_fname = 0;
1222 scp_sftp_donethistarget = 1;
1225 * Even simpler case: one file _which we've done_.
1226 * Return 1 (finished).
1232 * We're now in the middle of stepping through a list
1233 * of names returned from fxp_readdir(); so let's carry
1236 struct scp_sftp_dirstack *head = scp_sftp_dirstack_head;
1237 while (head->namepos < head->namelen &&
1238 (is_dots(head->names[head->namepos].filename) ||
1240 !wc_match(head->wildcard,
1241 head->names[head->namepos].filename))))
1242 head->namepos++; /* skip . and .. */
1243 if (head->namepos < head->namelen) {
1244 head->matched_something = 1;
1245 fname = dupcat(head->dirpath, "/",
1246 head->names[head->namepos++].filename,
1248 must_free_fname = 1;
1251 * We've come to the end of the list; pop it off
1252 * the stack and return an ENDDIR action (or RETRY
1253 * if this was a wildcard match).
1255 if (head->wildcard) {
1256 act->action = SCP_SINK_RETRY;
1257 if (!head->matched_something) {
1258 tell_user(stderr, "pscp: wildcard '%s' matched "
1259 "no files", head->wildcard);
1262 sfree(head->wildcard);
1265 act->action = SCP_SINK_ENDDIR;
1268 sfree(head->dirpath);
1270 scp_sftp_dirstack_head = head->next;
1278 * Now we have a filename. Stat it, and see if it's a file
1281 req = fxp_stat_send(fname);
1282 pktin = sftp_wait_for_reply(req);
1283 ret = fxp_stat_recv(pktin, req, &attrs);
1285 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS)) {
1286 tell_user(stderr, "unable to identify %s: %s", fname,
1287 ret ? "file type not supplied" : fxp_error());
1288 if (must_free_fname) sfree(fname);
1293 if (attrs.permissions & 0040000) {
1294 struct scp_sftp_dirstack *newitem;
1295 struct fxp_handle *dirhandle;
1296 int nnames, namesize;
1297 struct fxp_name *ournames;
1298 struct fxp_names *names;
1301 * It's a directory. If we're not in recursive mode,
1302 * this merits a complaint (which is fatal if the name
1303 * was specified directly, but not if it was matched by
1306 * We skip this complaint completely if
1307 * scp_sftp_wildcard is set, because that's an
1308 * indication that we're not actually supposed to
1309 * _recursively_ transfer the dir, just scan it for
1310 * things matching the wildcard.
1312 if (!scp_sftp_recursive && !scp_sftp_wildcard) {
1313 tell_user(stderr, "pscp: %s: is a directory", fname);
1315 if (must_free_fname) sfree(fname);
1316 if (scp_sftp_dirstack_head) {
1317 act->action = SCP_SINK_RETRY;
1325 * Otherwise, the fun begins. We must fxp_opendir() the
1326 * directory, slurp the filenames into memory, return
1327 * SCP_SINK_DIR (unless this is a wildcard match), and
1328 * set targetisdir. The next time we're called, we will
1329 * run through the list of filenames one by one,
1330 * matching them against a wildcard if present.
1332 * If targetisdir is _already_ set (meaning we're
1333 * already in the middle of going through another such
1334 * list), we must push the other (target,namelist) pair
1337 req = fxp_opendir_send(fname);
1338 pktin = sftp_wait_for_reply(req);
1339 dirhandle = fxp_opendir_recv(pktin, req);
1342 tell_user(stderr, "pscp: unable to open directory %s: %s",
1343 fname, fxp_error());
1344 if (must_free_fname) sfree(fname);
1348 nnames = namesize = 0;
1353 req = fxp_readdir_send(dirhandle);
1354 pktin = sftp_wait_for_reply(req);
1355 names = fxp_readdir_recv(pktin, req);
1357 if (names == NULL) {
1358 if (fxp_error_type() == SSH_FX_EOF)
1360 tell_user(stderr, "pscp: reading directory %s: %s",
1361 fname, fxp_error());
1363 req = fxp_close_send(dirhandle);
1364 pktin = sftp_wait_for_reply(req);
1365 fxp_close_recv(pktin, req);
1367 if (must_free_fname) sfree(fname);
1372 if (names->nnames == 0) {
1373 fxp_free_names(names);
1376 if (nnames + names->nnames >= namesize) {
1377 namesize += names->nnames + 128;
1378 ournames = sresize(ournames, namesize, struct fxp_name);
1380 for (i = 0; i < names->nnames; i++) {
1381 if (!strcmp(names->names[i].filename, ".") ||
1382 !strcmp(names->names[i].filename, "..")) {
1384 * . and .. are normal consequences of
1385 * reading a directory, and aren't worth
1386 * complaining about.
1388 } else if (!vet_filename(names->names[i].filename)) {
1389 tell_user(stderr, "ignoring potentially dangerous server-"
1390 "supplied filename '%s'",
1391 names->names[i].filename);
1393 ournames[nnames++] = names->names[i];
1395 names->nnames = 0; /* prevent free_names */
1396 fxp_free_names(names);
1398 req = fxp_close_send(dirhandle);
1399 pktin = sftp_wait_for_reply(req);
1400 fxp_close_recv(pktin, req);
1402 newitem = snew(struct scp_sftp_dirstack);
1403 newitem->next = scp_sftp_dirstack_head;
1404 newitem->names = ournames;
1405 newitem->namepos = 0;
1406 newitem->namelen = nnames;
1407 if (must_free_fname)
1408 newitem->dirpath = fname;
1410 newitem->dirpath = dupstr(fname);
1411 if (scp_sftp_wildcard) {
1412 newitem->wildcard = scp_sftp_wildcard;
1413 newitem->matched_something = 0;
1414 scp_sftp_wildcard = NULL;
1416 newitem->wildcard = NULL;
1418 scp_sftp_dirstack_head = newitem;
1420 if (newitem->wildcard) {
1421 act->action = SCP_SINK_RETRY;
1423 act->action = SCP_SINK_DIR;
1424 act->buf = dupstr(stripslashes(fname, 0));
1425 act->name = act->buf;
1426 act->size = uint64_make(0,0); /* duhh, it's a directory */
1427 act->permissions = 07777 & attrs.permissions;
1428 if (scp_sftp_preserve &&
1429 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1430 act->atime = attrs.atime;
1431 act->mtime = attrs.mtime;
1440 * It's a file. Return SCP_SINK_FILE.
1442 act->action = SCP_SINK_FILE;
1443 act->buf = dupstr(stripslashes(fname, 0));
1444 act->name = act->buf;
1445 if (attrs.flags & SSH_FILEXFER_ATTR_SIZE) {
1446 act->size = attrs.size;
1448 act->size = uint64_make(ULONG_MAX,ULONG_MAX); /* no idea */
1449 act->permissions = 07777 & attrs.permissions;
1450 if (scp_sftp_preserve &&
1451 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1452 act->atime = attrs.atime;
1453 act->mtime = attrs.mtime;
1457 if (must_free_fname)
1458 scp_sftp_currentname = fname;
1460 scp_sftp_currentname = dupstr(fname);
1475 if (ssh_scp_recv((unsigned char *) &ch, 1) <= 0)
1478 bump("Protocol error: Unexpected newline");
1482 if (ssh_scp_recv((unsigned char *) &ch, 1) <= 0)
1483 bump("Lost connection");
1486 act->buf = sresize(act->buf, bufsize, char);
1489 } while (ch != '\n');
1490 act->buf[i - 1] = '\0';
1492 case '\01': /* error */
1493 tell_user(stderr, "%s", act->buf);
1495 continue; /* go round again */
1496 case '\02': /* fatal error */
1497 bump("%s", act->buf);
1499 back->send(backhandle, "", 1);
1500 act->action = SCP_SINK_ENDDIR;
1503 if (sscanf(act->buf, "%ld %*d %ld %*d",
1504 &act->mtime, &act->atime) == 2) {
1506 back->send(backhandle, "", 1);
1507 continue; /* go round again */
1509 bump("Protocol error: Illegal time format");
1512 act->action = (action == 'C' ? SCP_SINK_FILE : SCP_SINK_DIR);
1515 bump("Protocol error: Expected control record");
1518 * We will go round this loop only once, unless we hit
1525 * If we get here, we must have seen SCP_SINK_FILE or
1531 if (sscanf(act->buf, "%lo %s %n", &act->permissions,
1533 bump("Protocol error: Illegal file descriptor format");
1534 act->size = uint64_from_decimal(sizestr);
1535 act->name = act->buf + i;
1541 int scp_accept_filexfer(void)
1544 struct sftp_packet *pktin;
1545 struct sftp_request *req;
1547 req = fxp_open_send(scp_sftp_currentname, SSH_FXF_READ, NULL);
1548 pktin = sftp_wait_for_reply(req);
1549 scp_sftp_filehandle = fxp_open_recv(pktin, req);
1551 if (!scp_sftp_filehandle) {
1552 tell_user(stderr, "pscp: unable to open %s: %s",
1553 scp_sftp_currentname, fxp_error());
1557 scp_sftp_fileoffset = uint64_make(0, 0);
1558 scp_sftp_xfer = xfer_download_init(scp_sftp_filehandle,
1559 scp_sftp_fileoffset);
1560 sfree(scp_sftp_currentname);
1563 back->send(backhandle, "", 1);
1564 return 0; /* can't fail */
1568 int scp_recv_filedata(char *data, int len)
1571 struct sftp_packet *pktin;
1575 xfer_download_queue(scp_sftp_xfer);
1576 pktin = sftp_recv();
1577 ret = xfer_download_gotpkt(scp_sftp_xfer, pktin);
1579 tell_user(stderr, "pscp: error while reading: %s", fxp_error());
1580 if (ret == INT_MIN) /* pktin not even freed */
1586 if (xfer_download_data(scp_sftp_xfer, &vbuf, &actuallen)) {
1588 * This assertion relies on the fact that the natural
1589 * block size used in the xfer manager is at most that
1590 * used in this module. I don't like crossing layers in
1591 * this way, but it'll do for now.
1593 assert(actuallen <= len);
1594 memcpy(data, vbuf, actuallen);
1599 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, actuallen);
1603 return ssh_scp_recv((unsigned char *) data, len);
1607 int scp_finish_filerecv(void)
1610 struct sftp_packet *pktin;
1611 struct sftp_request *req;
1614 * Ensure that xfer_done() will work correctly, so we can
1615 * clean up any outstanding requests from the file
1618 xfer_set_error(scp_sftp_xfer);
1619 while (!xfer_done(scp_sftp_xfer)) {
1623 pktin = sftp_recv();
1624 ret = xfer_download_gotpkt(scp_sftp_xfer, pktin);
1626 tell_user(stderr, "pscp: error while reading: %s", fxp_error());
1627 if (ret == INT_MIN) /* pktin not even freed */
1632 if (xfer_download_data(scp_sftp_xfer, &vbuf, &len))
1635 xfer_cleanup(scp_sftp_xfer);
1637 req = fxp_close_send(scp_sftp_filehandle);
1638 pktin = sftp_wait_for_reply(req);
1639 fxp_close_recv(pktin, req);
1642 back->send(backhandle, "", 1);
1647 /* ----------------------------------------------------------------------
1648 * Send an error message to the other side and to the screen.
1649 * Increment error counter.
1651 static void run_err(const char *fmt, ...)
1657 str = dupvprintf(fmt, ap);
1658 str2 = dupcat("pscp: ", str, "\n", NULL);
1660 scp_send_errmsg(str2);
1661 tell_user(stderr, "%s", str2);
1667 * Execute the source part of the SCP protocol.
1669 static void source(char *src)
1672 unsigned long mtime, atime;
1679 time_t stat_starttime, stat_lasttime;
1681 attr = file_type(src);
1682 if (attr == FILE_TYPE_NONEXISTENT ||
1683 attr == FILE_TYPE_WEIRD) {
1684 run_err("%s: %s file or directory", src,
1685 (attr == FILE_TYPE_WEIRD ? "Not a" : "No such"));
1689 if (attr == FILE_TYPE_DIRECTORY) {
1692 * Avoid . and .. directories.
1695 p = strrchr(src, '/');
1697 p = strrchr(src, '\\');
1702 if (!strcmp(p, ".") || !strcmp(p, ".."))
1703 /* skip . and .. */ ;
1707 run_err("%s: not a regular file", src);
1712 if ((last = strrchr(src, '/')) == NULL)
1716 if (strrchr(last, '\\') != NULL)
1717 last = strrchr(last, '\\') + 1;
1718 if (last == src && strchr(src, ':') != NULL)
1719 last = strchr(src, ':') + 1;
1721 f = open_existing_file(src, &size, &mtime, &atime, &permissions);
1723 run_err("%s: Cannot open file", src);
1727 if (scp_send_filetimes(mtime, atime)) {
1735 uint64_decimal(size, sizestr);
1736 tell_user(stderr, "Sending file %s, size=%s", last, sizestr);
1738 if (scp_send_filename(last, size, permissions)) {
1743 stat_bytes = uint64_make(0,0);
1744 stat_starttime = time(NULL);
1747 for (i = uint64_make(0,0);
1748 uint64_compare(i,size) < 0;
1749 i = uint64_add32(i,4096)) {
1750 char transbuf[4096];
1753 if (uint64_compare(uint64_add32(i, k),size) > 0) /* i + k > size */
1754 k = (uint64_subtract(size, i)).lo; /* k = size - i; */
1755 if ((j = read_from_file(f, transbuf, k)) != k) {
1758 bump("%s: Read error", src);
1760 if (scp_send_filedata(transbuf, k))
1761 bump("%s: Network error occurred", src);
1764 stat_bytes = uint64_add32(stat_bytes, k);
1765 if (time(NULL) != stat_lasttime ||
1766 (uint64_compare(uint64_add32(i, k), size) == 0)) {
1767 stat_lasttime = time(NULL);
1768 print_stats(last, size, stat_bytes,
1769 stat_starttime, stat_lasttime);
1776 (void) scp_send_finish();
1780 * Recursively send the contents of a directory.
1782 static void rsource(char *src)
1788 if ((last = strrchr(src, '/')) == NULL)
1792 if (strrchr(last, '\\') != NULL)
1793 last = strrchr(last, '\\') + 1;
1794 if (last == src && strchr(src, ':') != NULL)
1795 last = strchr(src, ':') + 1;
1797 /* maybe send filetime */
1799 save_target = scp_save_remotepath();
1802 tell_user(stderr, "Entering directory: %s", last);
1803 if (scp_send_dirname(last, 0755))
1806 dir = open_directory(src);
1809 while ((filename = read_filename(dir)) != NULL) {
1810 char *foundfile = dupcat(src, "/", filename, NULL);
1816 close_directory(dir);
1818 (void) scp_send_enddir();
1820 scp_restore_remotepath(save_target);
1824 * Execute the sink part of the SCP protocol.
1826 static void sink(char *targ, char *src)
1836 time_t stat_starttime, stat_lasttime;
1839 attr = file_type(targ);
1840 if (attr == FILE_TYPE_DIRECTORY)
1843 if (targetshouldbedirectory && !targisdir)
1844 bump("%s: Not a directory", targ);
1848 struct scp_sink_action act;
1849 if (scp_get_sink_action(&act))
1852 if (act.action == SCP_SINK_ENDDIR)
1855 if (act.action == SCP_SINK_RETRY)
1860 * Prevent the remote side from maliciously writing to
1861 * files outside the target area by sending a filename
1862 * containing `../'. In fact, it shouldn't be sending
1863 * filenames with any slashes or colons in at all; so
1864 * we'll find the last slash, backslash or colon in the
1865 * filename and use only the part after that. (And
1868 * In addition, we also ensure here that if we're
1869 * copying a single file and the target is a directory
1870 * (common usage: `pscp host:filename .') the remote
1871 * can't send us a _different_ file name. We can
1872 * distinguish this case because `src' will be non-NULL
1873 * and the last component of that will fail to match
1874 * (the last component of) the name sent.
1876 * Well, not always; if `src' is a wildcard, we do
1877 * expect to get back filenames that don't correspond
1878 * exactly to it. Ideally in this case, we would like
1879 * to ensure that the returned filename actually
1880 * matches the wildcard pattern - but one of SCP's
1881 * protocol infelicities is that wildcard matching is
1882 * done at the server end _by the server's rules_ and
1883 * so in general this is infeasible. Hence, we only
1884 * accept filenames that don't correspond to `src' if
1885 * unsafe mode is enabled or we are using SFTP (which
1886 * resolves remote wildcards on the client side and can
1889 char *striptarget, *stripsrc;
1891 striptarget = stripslashes(act.name, 1);
1892 if (striptarget != act.name) {
1893 tell_user(stderr, "warning: remote host sent a compound"
1894 " pathname '%s'", act.name);
1895 tell_user(stderr, " renaming local file to '%s'",
1900 * Also check to see if the target filename is '.' or
1901 * '..', or indeed '...' and so on because Windows
1902 * appears to interpret those like '..'.
1904 if (is_dots(striptarget)) {
1905 bump("security violation: remote host attempted to write to"
1906 " a '.' or '..' path!");
1910 stripsrc = stripslashes(src, 1);
1911 if (strcmp(striptarget, stripsrc) &&
1912 !using_sftp && !scp_unsafe_mode) {
1913 tell_user(stderr, "warning: remote host tried to write "
1914 "to a file called '%s'", striptarget);
1915 tell_user(stderr, " when we requested a file "
1916 "called '%s'.", stripsrc);
1917 tell_user(stderr, " If this is a wildcard, "
1918 "consider upgrading to SSH-2 or using");
1919 tell_user(stderr, " the '-unsafe' option. Renaming"
1920 " of this file has been disallowed.");
1921 /* Override the name the server provided with our own. */
1922 striptarget = stripsrc;
1926 if (targ[0] != '\0')
1927 destfname = dir_file_cat(targ, striptarget);
1929 destfname = dupstr(striptarget);
1932 * In this branch of the if, the target area is a
1933 * single file with an explicitly specified name in any
1934 * case, so there's no danger.
1936 destfname = dupstr(targ);
1938 attr = file_type(destfname);
1939 exists = (attr != FILE_TYPE_NONEXISTENT);
1941 if (act.action == SCP_SINK_DIR) {
1942 if (exists && attr != FILE_TYPE_DIRECTORY) {
1943 run_err("%s: Not a directory", destfname);
1948 if (!create_directory(destfname)) {
1949 run_err("%s: Cannot create directory", destfname);
1954 sink(destfname, NULL);
1955 /* can we set the timestamp for directories ? */
1960 f = open_new_file(destfname, act.permissions);
1962 run_err("%s: Cannot create file", destfname);
1967 if (scp_accept_filexfer()) {
1973 stat_bytes = uint64_make(0, 0);
1974 stat_starttime = time(NULL);
1976 stat_name = stripslashes(destfname, 1);
1978 received = uint64_make(0, 0);
1979 while (uint64_compare(received,act.size) < 0) {
1980 char transbuf[32768];
1983 blksize = uint64_make(0, 32768);
1984 if (uint64_compare(blksize,uint64_subtract(act.size,received)) > 0)
1985 blksize = uint64_subtract(act.size,received);
1986 read = scp_recv_filedata(transbuf, (int)blksize.lo);
1988 bump("Lost connection");
1991 if (write_to_file(f, transbuf, read) != (int)read) {
1993 /* FIXME: in sftp we can actually abort the transfer */
1995 printf("\r%-25.25s | %50s\n",
1997 "Write error.. waiting for end of file");
2001 stat_bytes = uint64_add32(stat_bytes,read);
2002 if (time(NULL) > stat_lasttime ||
2003 uint64_compare(uint64_add32(received, read), act.size) == 0) {
2004 stat_lasttime = time(NULL);
2005 print_stats(stat_name, act.size, stat_bytes,
2006 stat_starttime, stat_lasttime);
2009 received = uint64_add32(received, read);
2012 set_file_times(f, act.mtime, act.atime);
2017 run_err("%s: Write error", destfname);
2021 (void) scp_finish_filerecv();
2028 * We will copy local files to a remote server.
2030 static void toremote(int argc, char *argv[])
2032 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;
2130 bump("More than one remote source not supported");
2135 /* Separate host from filename */
2139 bump("Local to local copy not supported");
2143 /* Substitute "." for empty filename */
2145 /* Separate username and hostname */
2147 host = strrchr(host, '@');
2157 cmd = dupprintf("scp%s%s%s%s -f %s",
2158 verbose ? " -v" : "",
2159 recursive ? " -r" : "",
2160 preserve ? " -p" : "",
2161 targetshouldbedirectory ? " -d" : "", src);
2162 do_cmd(host, user, cmd);
2165 if (scp_sink_setup(src, preserve, recursive))
2172 * We will issue a list command to get a remote directory.
2174 static void get_dir_list(int argc, char *argv[])
2176 char *src, *host, *user;
2182 /* Separate host from filename */
2186 bump("Local file listing not supported");
2190 /* Substitute "." for empty filename */
2192 /* Separate username and hostname */
2194 host = strrchr(host, '@');
2204 cmd = snewn(4 * strlen(src) + 100, char);
2205 strcpy(cmd, "ls -la '");
2206 p = cmd + strlen(cmd);
2207 for (q = src; *q; q++) {
2220 do_cmd(host, user, cmd);
2224 scp_sftp_listdir(src);
2226 while (ssh_scp_recv((unsigned char *) &c, 1) > 0)
2227 tell_char(stdout, c);
2232 * Short description of parameters.
2234 static void usage(void)
2236 printf("PuTTY Secure Copy client\n");
2237 printf("%s\n", ver);
2238 printf("Usage: pscp [options] [user@]host:source target\n");
2240 (" pscp [options] source [source...] [user@]host:target\n");
2241 printf(" pscp [options] -ls [user@]host:filespec\n");
2242 printf("Options:\n");
2243 printf(" -V print version information and exit\n");
2244 printf(" -pgpfp print PGP key fingerprints and exit\n");
2245 printf(" -p preserve file attributes\n");
2246 printf(" -q quiet, don't show statistics\n");
2247 printf(" -r copy directories recursively\n");
2248 printf(" -v show verbose messages\n");
2249 printf(" -load sessname Load settings from saved session\n");
2250 printf(" -P port connect to specified port\n");
2251 printf(" -l user connect with specified username\n");
2252 printf(" -pw passw login with specified password\n");
2253 printf(" -1 -2 force use of particular SSH protocol version\n");
2254 printf(" -4 -6 force use of IPv4 or IPv6\n");
2255 printf(" -C enable compression\n");
2256 printf(" -i key private key file for user authentication\n");
2257 printf(" -noagent disable use of Pageant\n");
2258 printf(" -agent enable use of Pageant\n");
2259 printf(" -hostkey aa:bb:cc:...\n");
2260 printf(" manually specify a host key (may be repeated)\n");
2261 printf(" -batch disable all interactive prompts\n");
2262 printf(" -unsafe allow server-side wildcards (DANGEROUS)\n");
2263 printf(" -sftp force use of SFTP protocol\n");
2264 printf(" -scp force use of SCP protocol\n");
2267 * -gui is an internal option, used by GUI front ends to get
2268 * pscp to pass progress reports back to them. It's not an
2269 * ordinary user-accessible option, so it shouldn't be part of
2270 * the command-line help. The only people who need to know
2271 * about it are programmers, and they can read the source.
2274 (" -gui hWnd GUI mode with the windows handle for receiving messages\n");
2281 printf("pscp: %s\n", ver);
2285 void cmdline_error(char *p, ...)
2288 fprintf(stderr, "pscp: ");
2290 vfprintf(stderr, p, ap);
2292 fprintf(stderr, "\n try typing just \"pscp\" for help\n");
2296 const int share_can_be_downstream = TRUE;
2297 const int share_can_be_upstream = FALSE;
2300 * Main program. (Called `psftp_main' because it gets called from
2301 * *sftp.c; bit silly, I know, but it had to be called _something_.)
2303 int psftp_main(int argc, char *argv[])
2307 default_protocol = PROT_TELNET;
2310 #ifdef FLAG_SYNCAGENT
2314 cmdline_tooltype = TOOLTYPE_FILETRANSFER;
2317 /* Load Default Settings before doing anything else. */
2319 do_defaults(NULL, conf);
2320 loaded_session = FALSE;
2322 for (i = 1; i < argc; i++) {
2324 if (argv[i][0] != '-')
2326 ret = cmdline_process_param(argv[i], i+1<argc?argv[i+1]:NULL, 1, conf);
2328 cmdline_error("option \"%s\" requires an argument", argv[i]);
2329 } else if (ret == 2) {
2330 i++; /* skip next argument */
2331 } else if (ret == 1) {
2332 /* We have our own verbosity in addition to `flags'. */
2333 if (flags & FLAG_VERBOSE)
2335 } else if (strcmp(argv[i], "-pgpfp") == 0) {
2338 } else if (strcmp(argv[i], "-r") == 0) {
2340 } else if (strcmp(argv[i], "-p") == 0) {
2342 } else if (strcmp(argv[i], "-q") == 0) {
2344 } else if (strcmp(argv[i], "-h") == 0 ||
2345 strcmp(argv[i], "-?") == 0 ||
2346 strcmp(argv[i], "--help") == 0) {
2348 } else if (strcmp(argv[i], "-V") == 0 ||
2349 strcmp(argv[i], "--version") == 0) {
2351 } else if (strcmp(argv[i], "-ls") == 0) {
2353 } else if (strcmp(argv[i], "-batch") == 0) {
2354 console_batch_mode = 1;
2355 } else if (strcmp(argv[i], "-unsafe") == 0) {
2356 scp_unsafe_mode = 1;
2357 } else if (strcmp(argv[i], "-sftp") == 0) {
2358 try_scp = 0; try_sftp = 1;
2359 } else if (strcmp(argv[i], "-scp") == 0) {
2360 try_scp = 1; try_sftp = 0;
2361 } else if (strcmp(argv[i], "--") == 0) {
2365 cmdline_error("unknown option \"%s\"", argv[i]);
2375 get_dir_list(argc, argv);
2382 targetshouldbedirectory = 1;
2384 if (colon(argv[argc - 1]) != NULL)
2385 toremote(argc, argv);
2387 tolocal(argc, argv);
2390 if (back != NULL && back->connected(backhandle)) {
2392 back->special(backhandle, TS_EOF);
2394 ssh_scp_recv((unsigned char *) &ch, 1);
2399 console_provide_logctx(NULL);
2400 back->free(backhandle);
2404 return (errs == 0 ? 0 : 1);