2 * scp.c - Scp (Secure Copy) client for PuTTY.
3 * Joris van Rantwijk, Simon Tatham
5 * This is mainly based on ssh-1.2.26/scp.c by Timo Rinne & Tatu Ylonen.
6 * They, in turn, used stuff from BSD rcp.
8 * (SGT, 2001-09-10: Joris van Rantwijk assures me that although
9 * this file as originally submitted was inspired by, and
10 * _structurally_ based on, ssh-1.2.26's scp.c, there wasn't any
11 * actual code duplicated, so the above comment shouldn't give rise
12 * to licensing issues.)
22 #define PUTTY_DO_GLOBALS
30 static int verbose = 0;
31 static int recursive = 0;
32 static int preserve = 0;
33 static int targetshouldbedirectory = 0;
34 static int statistics = 1;
35 static int prev_stats_len = 0;
36 static int scp_unsafe_mode = 0;
38 static int gui_mode = 0;
39 static int using_sftp = 0;
42 static void *backhandle;
45 static void source(char *src);
46 static void rsource(char *src);
47 static void sink(char *targ, char *src);
50 * The maximum amount of queued data we accept before we stop and
51 * wait for the server to process some.
53 #define MAX_SCP_BUFSIZE 16384
55 void ldisc_send(void *handle, char *buf, int len, int interactive)
58 * This is only here because of the calls to ldisc_send(NULL,
59 * 0) in ssh.c. Nothing in PSCP actually needs to use the ldisc
60 * as an ldisc. So if we get called with any real data, I want
66 static void tell_char(FILE * stream, char c)
71 gui_send_char(stream == stderr, c);
74 static void tell_str(FILE * stream, char *str)
78 for (i = 0; i < strlen(str); ++i)
79 tell_char(stream, str[i]);
82 static void tell_user(FILE * stream, char *fmt, ...)
87 str = dupvprintf(fmt, ap);
89 str2 = dupcat(str, "\n", NULL);
91 tell_str(stream, str2);
96 * Print an error message and perform a fatal exit.
98 void fatalbox(char *fmt, ...)
103 str = dupvprintf(fmt, ap);
104 str2 = dupcat("Fatal: ", str, "\n", NULL);
107 tell_str(stderr, str2);
112 gui_send_errcount(list, errs);
116 void modalfatalbox(char *fmt, ...)
121 str = dupvprintf(fmt, ap);
122 str2 = dupcat("Fatal: ", str, "\n", NULL);
125 tell_str(stderr, str2);
130 gui_send_errcount(list, errs);
134 void connection_fatal(void *frontend, char *fmt, ...)
139 str = dupvprintf(fmt, ap);
140 str2 = dupcat("Fatal: ", str, "\n", NULL);
143 tell_str(stderr, str2);
148 gui_send_errcount(list, errs);
154 * In pscp, all agent requests should be synchronous, so this is a
157 void agent_schedule_callback(void (*callback)(void *, void *, int),
158 void *callback_ctx, void *data, int len)
160 assert(!"We shouldn't be here");
164 * Receive a block of data from the SSH link. Block until all data
167 * To do this, we repeatedly call the SSH protocol module, with our
168 * own trap in from_backend() to catch the data that comes back. We
169 * do this until we have enough data.
172 static unsigned char *outptr; /* where to put the data */
173 static unsigned outlen; /* how much data required */
174 static unsigned char *pending = NULL; /* any spare data */
175 static unsigned pendlen = 0, pendsize = 0; /* length and phys. size of buffer */
176 int from_backend(void *frontend, int is_stderr, const char *data, int datalen)
178 unsigned char *p = (unsigned char *) data;
179 unsigned len = (unsigned) datalen;
182 * stderr data is just spouted to local stderr and otherwise
187 fwrite(data, 1, len, stderr);
192 * If this is before the real session begins, just return.
197 if ((outlen > 0) && (len > 0)) {
198 unsigned used = outlen;
201 memcpy(outptr, p, used);
209 if (pendsize < pendlen + len) {
210 pendsize = pendlen + len + 4096;
211 pending = sresize(pending, pendsize, unsigned char);
213 fatalbox("Out of memory");
215 memcpy(pending + pendlen, p, len);
221 static int ssh_scp_recv(unsigned char *buf, int len)
227 * See if the pending-input block contains some of what we
231 unsigned pendused = pendlen;
232 if (pendused > outlen)
234 memcpy(outptr, pending, pendused);
235 memmove(pending, pending + pendused, pendlen - pendused);
249 if (ssh_sftp_loop_iteration() < 0)
257 * Loop through the ssh connection and authentication process.
259 static void ssh_scp_init(void)
261 while (!back->sendok(backhandle)) {
262 if (ssh_sftp_loop_iteration() < 0)
265 using_sftp = !ssh_fallback_cmd(backhandle);
268 tell_user(stderr, "Using SFTP");
270 tell_user(stderr, "Using SCP1");
275 * Print an error message and exit after closing the SSH link.
277 static void bump(char *fmt, ...)
282 str = dupvprintf(fmt, ap);
284 str2 = dupcat(str, "\n", NULL);
286 tell_str(stderr, str2);
290 if (back != NULL && back->socket(backhandle) != NULL) {
292 back->special(backhandle, TS_EOF);
293 ssh_scp_recv(&ch, 1);
297 gui_send_errcount(list, errs);
303 * Open an SSH connection to user@host and execute cmd.
305 static void do_cmd(char *host, char *user, char *cmd)
311 if (host == NULL || host[0] == '\0')
312 bump("Empty host name");
314 /* Try to load settings for this host */
315 do_defaults(host, &cfg);
316 if (cfg.host[0] == '\0') {
317 /* No settings for this host; use defaults */
318 do_defaults(NULL, &cfg);
319 strncpy(cfg.host, host, sizeof(cfg.host) - 1);
320 cfg.host[sizeof(cfg.host) - 1] = '\0';
324 * Force use of SSH. (If they got the protocol wrong we assume the
325 * port is useless too.)
327 if (cfg.protocol != PROT_SSH) {
328 cfg.protocol = PROT_SSH;
333 * Enact command-line overrides.
335 cmdline_run_saved(&cfg);
338 * Trim leading whitespace off the hostname if it's there.
341 int space = strspn(cfg.host, " \t");
342 memmove(cfg.host, cfg.host+space, 1+strlen(cfg.host)-space);
345 /* See if host is of the form user@host */
346 if (cfg.host[0] != '\0') {
347 char *atsign = strchr(cfg.host, '@');
348 /* Make sure we're not overflowing the user field */
350 if (atsign - cfg.host < sizeof cfg.username) {
351 strncpy(cfg.username, cfg.host, atsign - cfg.host);
352 cfg.username[atsign - cfg.host] = '\0';
354 memmove(cfg.host, atsign + 1, 1 + strlen(atsign + 1));
359 * Trim a colon suffix off the hostname if it's there.
361 cfg.host[strcspn(cfg.host, ":")] = '\0';
364 * Remove any remaining whitespace from the hostname.
368 while (cfg.host[p2] != '\0') {
369 if (cfg.host[p2] != ' ' && cfg.host[p2] != '\t') {
370 cfg.host[p1] = cfg.host[p2];
379 if (user != NULL && user[0] != '\0') {
380 strncpy(cfg.username, user, sizeof(cfg.username) - 1);
381 cfg.username[sizeof(cfg.username) - 1] = '\0';
382 } else if (cfg.username[0] == '\0') {
383 user = get_username();
385 bump("Empty user name");
388 tell_user(stderr, "Guessing user name: %s", user);
389 strncpy(cfg.username, user, sizeof(cfg.username) - 1);
390 cfg.username[sizeof(cfg.username) - 1] = '\0';
396 * Disable scary things which shouldn't be enabled for simple
397 * things like SCP and SFTP: agent forwarding, port forwarding,
402 cfg.portfwd[0] = cfg.portfwd[1] = '\0';
405 * Attempt to start the SFTP subsystem as a first choice,
406 * falling back to the provided scp command if that fails.
408 strcpy(cfg.remote_cmd, "sftp");
409 cfg.ssh_subsys = TRUE;
410 cfg.remote_cmd_ptr2 = cmd;
411 cfg.ssh_subsys2 = FALSE;
416 err = back->init(NULL, &backhandle, &cfg, cfg.host, cfg.port, &realhost,0);
418 bump("ssh_init: %s", err);
419 logctx = log_init(NULL, &cfg);
420 back->provide_logctx(backhandle, logctx);
421 console_provide_logctx(logctx);
423 if (verbose && realhost != NULL)
424 tell_user(stderr, "Connected to %s\n", realhost);
429 * Update statistic information about current file.
431 static void print_stats(char *name, unsigned long size, unsigned long done,
432 time_t start, time_t now)
441 elap = (unsigned long) difftime(now, start);
444 ratebs = (float) done / elap;
446 ratebs = (float) done;
451 eta = (unsigned long) ((size - done) / ratebs);
452 sprintf(etastr, "%02ld:%02ld:%02ld",
453 eta / 3600, (eta % 3600) / 60, eta % 60);
455 pct = (int) (100 * (done * 1.0 / size));
458 gui_update_stats(name, size, pct, elap, done, eta,
459 (unsigned long) ratebs);
461 len = printf("\r%-25.25s | %10ld kB | %5.1f kB/s | ETA: %8s | %3d%%",
462 name, done / 1024, ratebs / 1024.0, etastr, pct);
463 if (len < prev_stats_len)
464 printf("%*s", prev_stats_len - len, "");
465 prev_stats_len = len;
473 * Find a colon in str and return a pointer to the colon.
474 * This is used to separate hostname from filename.
476 static char *colon(char *str)
478 /* We ignore a leading colon, since the hostname cannot be
479 empty. We also ignore a colon as second character because
480 of filenames like f:myfile.txt. */
481 if (str[0] == '\0' || str[0] == ':' || str[1] == ':')
483 while (*str != '\0' && *str != ':' && *str != '/' && *str != '\\')
492 * Return a pointer to the portion of str that comes after the last
493 * slash (or backslash or colon, if `local' is TRUE).
495 static char *stripslashes(char *str, int local)
500 p = strchr(str, ':');
504 p = strrchr(str, '/');
508 p = strrchr(str, '\\');
516 * Determine whether a string is entirely composed of dots.
518 static int is_dots(char *str)
520 return str[strspn(str, ".")] == '\0';
524 * Wait for a response from the other side.
525 * Return 0 if ok, -1 if error.
527 static int response(void)
529 char ch, resp, rbuf[2048];
532 if (ssh_scp_recv(&resp, 1) <= 0)
533 bump("Lost connection");
543 case 2: /* fatal error */
545 if (ssh_scp_recv(&ch, 1) <= 0)
546 bump("Protocol error: Lost connection");
548 } while (p < sizeof(rbuf) && ch != '\n');
551 tell_user(stderr, "%s\n", rbuf);
559 int sftp_recvdata(char *buf, int len)
561 return ssh_scp_recv(buf, len);
563 int sftp_senddata(char *buf, int len)
565 back->send(backhandle, (unsigned char *) buf, len);
569 /* ----------------------------------------------------------------------
570 * sftp-based replacement for the hacky `pscp -ls'.
572 static int sftp_ls_compare(const void *av, const void *bv)
574 const struct fxp_name *a = (const struct fxp_name *) av;
575 const struct fxp_name *b = (const struct fxp_name *) bv;
576 return strcmp(a->filename, b->filename);
578 void scp_sftp_listdir(char *dirname)
580 struct fxp_handle *dirh;
581 struct fxp_names *names;
582 struct fxp_name *ournames;
583 struct sftp_packet *pktin;
584 struct sftp_request *req, *rreq;
585 int nnames, namesize;
589 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
594 printf("Listing directory %s\n", dirname);
596 sftp_register(req = fxp_opendir_send(dirname));
597 rreq = sftp_find_request(pktin = sftp_recv());
599 dirh = fxp_opendir_recv(pktin, rreq);
602 printf("Unable to open %s: %s\n", dirname, fxp_error());
604 nnames = namesize = 0;
609 sftp_register(req = fxp_readdir_send(dirh));
610 rreq = sftp_find_request(pktin = sftp_recv());
612 names = fxp_readdir_recv(pktin, rreq);
615 if (fxp_error_type() == SSH_FX_EOF)
617 printf("Reading directory %s: %s\n", dirname, fxp_error());
620 if (names->nnames == 0) {
621 fxp_free_names(names);
625 if (nnames + names->nnames >= namesize) {
626 namesize += names->nnames + 128;
627 ournames = sresize(ournames, namesize, struct fxp_name);
630 for (i = 0; i < names->nnames; i++)
631 ournames[nnames++] = names->names[i];
633 names->nnames = 0; /* prevent free_names */
634 fxp_free_names(names);
636 sftp_register(req = fxp_close_send(dirh));
637 rreq = sftp_find_request(pktin = sftp_recv());
639 fxp_close_recv(pktin, rreq);
642 * Now we have our filenames. Sort them by actual file
643 * name, and then output the longname parts.
645 qsort(ournames, nnames, sizeof(*ournames), sftp_ls_compare);
650 for (i = 0; i < nnames; i++)
651 printf("%s\n", ournames[i].longname);
655 /* ----------------------------------------------------------------------
656 * Helper routines that contain the actual SCP protocol elements,
657 * implemented both as SCP1 and SFTP.
660 static struct scp_sftp_dirstack {
661 struct scp_sftp_dirstack *next;
662 struct fxp_name *names;
663 int namepos, namelen;
666 int matched_something; /* wildcard match set was non-empty */
667 } *scp_sftp_dirstack_head;
668 static char *scp_sftp_remotepath, *scp_sftp_currentname;
669 static char *scp_sftp_wildcard;
670 static int scp_sftp_targetisdir, scp_sftp_donethistarget;
671 static int scp_sftp_preserve, scp_sftp_recursive;
672 static unsigned long scp_sftp_mtime, scp_sftp_atime;
673 static int scp_has_times;
674 static struct fxp_handle *scp_sftp_filehandle;
675 static struct fxp_xfer *scp_sftp_xfer;
676 static uint64 scp_sftp_fileoffset;
678 void scp_source_setup(char *target, int shouldbedir)
682 * Find out whether the target filespec is in fact a
685 struct sftp_packet *pktin;
686 struct sftp_request *req, *rreq;
687 struct fxp_attrs attrs;
691 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
696 sftp_register(req = fxp_stat_send(target));
697 rreq = sftp_find_request(pktin = sftp_recv());
699 ret = fxp_stat_recv(pktin, rreq, &attrs);
701 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS))
702 scp_sftp_targetisdir = 0;
704 scp_sftp_targetisdir = (attrs.permissions & 0040000) != 0;
706 if (shouldbedir && !scp_sftp_targetisdir) {
707 bump("pscp: remote filespec %s: not a directory\n", target);
710 scp_sftp_remotepath = dupstr(target);
718 int scp_send_errmsg(char *str)
721 /* do nothing; we never need to send our errors to the server */
723 back->send(backhandle, "\001", 1);/* scp protocol error prefix */
724 back->send(backhandle, str, strlen(str));
726 return 0; /* can't fail */
729 int scp_send_filetimes(unsigned long mtime, unsigned long atime)
732 scp_sftp_mtime = mtime;
733 scp_sftp_atime = atime;
738 sprintf(buf, "T%lu 0 %lu 0\n", mtime, atime);
739 back->send(backhandle, buf, strlen(buf));
744 int scp_send_filename(char *name, unsigned long size, int modes)
748 struct sftp_packet *pktin;
749 struct sftp_request *req, *rreq;
751 if (scp_sftp_targetisdir) {
752 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
754 fullname = dupstr(scp_sftp_remotepath);
757 sftp_register(req = fxp_open_send(fullname, SSH_FXF_WRITE |
758 SSH_FXF_CREAT | SSH_FXF_TRUNC));
759 rreq = sftp_find_request(pktin = sftp_recv());
761 scp_sftp_filehandle = fxp_open_recv(pktin, rreq);
763 if (!scp_sftp_filehandle) {
764 tell_user(stderr, "pscp: unable to open %s: %s",
765 fullname, fxp_error());
769 scp_sftp_fileoffset = uint64_make(0, 0);
770 scp_sftp_xfer = xfer_upload_init(scp_sftp_filehandle,
771 scp_sftp_fileoffset);
776 sprintf(buf, "C%04o %lu ", modes, size);
777 back->send(backhandle, buf, strlen(buf));
778 back->send(backhandle, name, strlen(name));
779 back->send(backhandle, "\n", 1);
784 int scp_send_filedata(char *data, int len)
788 struct sftp_packet *pktin;
790 if (!scp_sftp_filehandle) {
794 while (!xfer_upload_ready(scp_sftp_xfer)) {
796 ret = xfer_upload_gotpkt(scp_sftp_xfer, pktin);
798 tell_user(stderr, "error while writing: %s\n", fxp_error());
804 xfer_upload_data(scp_sftp_xfer, data, len);
806 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, len);
809 int bufsize = back->send(backhandle, data, len);
812 * If the network transfer is backing up - that is, the
813 * remote site is not accepting data as fast as we can
814 * produce it - then we must loop on network events until
815 * we have space in the buffer again.
817 while (bufsize > MAX_SCP_BUFSIZE) {
818 if (ssh_sftp_loop_iteration() < 0)
820 bufsize = back->sendbuffer(backhandle);
827 int scp_send_finish(void)
830 struct fxp_attrs attrs;
831 struct sftp_packet *pktin;
832 struct sftp_request *req, *rreq;
835 while (!xfer_done(scp_sftp_xfer)) {
837 xfer_upload_gotpkt(scp_sftp_xfer, pktin);
839 xfer_cleanup(scp_sftp_xfer);
841 if (!scp_sftp_filehandle) {
845 attrs.flags = SSH_FILEXFER_ATTR_ACMODTIME;
846 attrs.atime = scp_sftp_atime;
847 attrs.mtime = scp_sftp_mtime;
848 sftp_register(req = fxp_fsetstat_send(scp_sftp_filehandle, attrs));
849 rreq = sftp_find_request(pktin = sftp_recv());
851 ret = fxp_fsetstat_recv(pktin, rreq);
853 tell_user(stderr, "unable to set file times: %s\n", fxp_error());
857 sftp_register(req = fxp_close_send(scp_sftp_filehandle));
858 rreq = sftp_find_request(pktin = sftp_recv());
860 fxp_close_recv(pktin, rreq);
864 back->send(backhandle, "", 1);
869 char *scp_save_remotepath(void)
872 return scp_sftp_remotepath;
877 void scp_restore_remotepath(char *data)
880 scp_sftp_remotepath = data;
883 int scp_send_dirname(char *name, int modes)
888 struct fxp_attrs attrs;
889 struct sftp_packet *pktin;
890 struct sftp_request *req, *rreq;
893 if (scp_sftp_targetisdir) {
894 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
896 fullname = dupstr(scp_sftp_remotepath);
900 * We don't worry about whether we managed to create the
901 * directory, because if it exists already it's OK just to
902 * use it. Instead, we will stat it afterwards, and if it
903 * exists and is a directory we will assume we were either
904 * successful or it didn't matter.
906 sftp_register(req = fxp_mkdir_send(fullname));
907 rreq = sftp_find_request(pktin = sftp_recv());
909 ret = fxp_mkdir_recv(pktin, rreq);
914 err = "server reported no error";
916 sftp_register(req = fxp_stat_send(fullname));
917 rreq = sftp_find_request(pktin = sftp_recv());
919 ret = fxp_stat_recv(pktin, rreq, &attrs);
921 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) ||
922 !(attrs.permissions & 0040000)) {
923 tell_user(stderr, "unable to create directory %s: %s",
929 scp_sftp_remotepath = fullname;
934 sprintf(buf, "D%04o 0 ", modes);
935 back->send(backhandle, buf, strlen(buf));
936 back->send(backhandle, name, strlen(name));
937 back->send(backhandle, "\n", 1);
942 int scp_send_enddir(void)
945 sfree(scp_sftp_remotepath);
948 back->send(backhandle, "E\n", 2);
954 * Yes, I know; I have an scp_sink_setup _and_ an scp_sink_init.
955 * That's bad. The difference is that scp_sink_setup is called once
956 * right at the start, whereas scp_sink_init is called to
957 * initialise every level of recursion in the protocol.
959 int scp_sink_setup(char *source, int preserve, int recursive)
965 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
970 * It's possible that the source string we've been given
971 * contains a wildcard. If so, we must split the directory
972 * away from the wildcard itself (throwing an error if any
973 * wildcardness comes before the final slash) and arrange
974 * things so that a dirstack entry will be set up.
976 newsource = snewn(1+strlen(source), char);
977 if (!wc_unescape(newsource, source)) {
978 /* Yes, here we go; it's a wildcard. Bah. */
979 char *dupsource, *lastpart, *dirpart, *wildcard;
980 dupsource = dupstr(source);
981 lastpart = stripslashes(dupsource, 0);
982 wildcard = dupstr(lastpart);
984 if (*dupsource && dupsource[1]) {
986 * The remains of dupsource are at least two
987 * characters long, meaning the pathname wasn't
988 * empty or just `/'. Hence, we remove the trailing
992 } else if (!*dupsource) {
994 * The remains of dupsource are _empty_ - the whole
995 * pathname was a wildcard. Hence we need to
996 * replace it with ".".
999 dupsource = dupstr(".");
1003 * Now we have separated our string into dupsource (the
1004 * directory part) and wildcard. Both of these will
1005 * need freeing at some point. Next step is to remove
1006 * wildcard escapes from the directory part, throwing
1007 * an error if it contains a real wildcard.
1009 dirpart = snewn(1+strlen(dupsource), char);
1010 if (!wc_unescape(dirpart, dupsource)) {
1011 tell_user(stderr, "%s: multiple-level wildcards unsupported",
1021 * Now we have dirpart (unescaped, ie a valid remote
1022 * path), and wildcard (a wildcard). This will be
1023 * sufficient to arrange a dirstack entry.
1025 scp_sftp_remotepath = dirpart;
1026 scp_sftp_wildcard = wildcard;
1029 scp_sftp_remotepath = newsource;
1030 scp_sftp_wildcard = NULL;
1032 scp_sftp_preserve = preserve;
1033 scp_sftp_recursive = recursive;
1034 scp_sftp_donethistarget = 0;
1035 scp_sftp_dirstack_head = NULL;
1040 int scp_sink_init(void)
1043 back->send(backhandle, "", 1);
1048 #define SCP_SINK_FILE 1
1049 #define SCP_SINK_DIR 2
1050 #define SCP_SINK_ENDDIR 3
1051 #define SCP_SINK_RETRY 4 /* not an action; just try again */
1052 struct scp_sink_action {
1053 int action; /* FILE, DIR, ENDDIR */
1054 char *buf; /* will need freeing after use */
1055 char *name; /* filename or dirname (not ENDDIR) */
1056 int mode; /* access mode (not ENDDIR) */
1057 unsigned long size; /* file size (not ENDDIR) */
1058 int settime; /* 1 if atime and mtime are filled */
1059 unsigned long atime, mtime; /* access times for the file */
1062 int scp_get_sink_action(struct scp_sink_action *act)
1066 int must_free_fname;
1067 struct fxp_attrs attrs;
1068 struct sftp_packet *pktin;
1069 struct sftp_request *req, *rreq;
1072 if (!scp_sftp_dirstack_head) {
1073 if (!scp_sftp_donethistarget) {
1075 * Simple case: we are only dealing with one file.
1077 fname = scp_sftp_remotepath;
1078 must_free_fname = 0;
1079 scp_sftp_donethistarget = 1;
1082 * Even simpler case: one file _which we've done_.
1083 * Return 1 (finished).
1089 * We're now in the middle of stepping through a list
1090 * of names returned from fxp_readdir(); so let's carry
1093 struct scp_sftp_dirstack *head = scp_sftp_dirstack_head;
1094 while (head->namepos < head->namelen &&
1095 (is_dots(head->names[head->namepos].filename) ||
1097 !wc_match(head->wildcard,
1098 head->names[head->namepos].filename))))
1099 head->namepos++; /* skip . and .. */
1100 if (head->namepos < head->namelen) {
1101 head->matched_something = 1;
1102 fname = dupcat(head->dirpath, "/",
1103 head->names[head->namepos++].filename,
1105 must_free_fname = 1;
1108 * We've come to the end of the list; pop it off
1109 * the stack and return an ENDDIR action (or RETRY
1110 * if this was a wildcard match).
1112 if (head->wildcard) {
1113 act->action = SCP_SINK_RETRY;
1114 if (!head->matched_something) {
1115 tell_user(stderr, "pscp: wildcard '%s' matched "
1116 "no files", head->wildcard);
1119 sfree(head->wildcard);
1122 act->action = SCP_SINK_ENDDIR;
1125 sfree(head->dirpath);
1127 scp_sftp_dirstack_head = head->next;
1135 * Now we have a filename. Stat it, and see if it's a file
1138 sftp_register(req = fxp_stat_send(fname));
1139 rreq = sftp_find_request(pktin = sftp_recv());
1140 assert(rreq == req);
1141 ret = fxp_stat_recv(pktin, rreq, &attrs);
1143 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS)) {
1144 tell_user(stderr, "unable to identify %s: %s", fname,
1145 ret ? "file type not supplied" : fxp_error());
1150 if (attrs.permissions & 0040000) {
1151 struct scp_sftp_dirstack *newitem;
1152 struct fxp_handle *dirhandle;
1153 int nnames, namesize;
1154 struct fxp_name *ournames;
1155 struct fxp_names *names;
1158 * It's a directory. If we're not in recursive mode,
1159 * this merits a complaint (which is fatal if the name
1160 * was specified directly, but not if it was matched by
1163 * We skip this complaint completely if
1164 * scp_sftp_wildcard is set, because that's an
1165 * indication that we're not actually supposed to
1166 * _recursively_ transfer the dir, just scan it for
1167 * things matching the wildcard.
1169 if (!scp_sftp_recursive && !scp_sftp_wildcard) {
1170 tell_user(stderr, "pscp: %s: is a directory", fname);
1172 if (must_free_fname) sfree(fname);
1173 if (scp_sftp_dirstack_head) {
1174 act->action = SCP_SINK_RETRY;
1182 * Otherwise, the fun begins. We must fxp_opendir() the
1183 * directory, slurp the filenames into memory, return
1184 * SCP_SINK_DIR (unless this is a wildcard match), and
1185 * set targetisdir. The next time we're called, we will
1186 * run through the list of filenames one by one,
1187 * matching them against a wildcard if present.
1189 * If targetisdir is _already_ set (meaning we're
1190 * already in the middle of going through another such
1191 * list), we must push the other (target,namelist) pair
1194 sftp_register(req = fxp_opendir_send(fname));
1195 rreq = sftp_find_request(pktin = sftp_recv());
1196 assert(rreq == req);
1197 dirhandle = fxp_opendir_recv(pktin, rreq);
1200 tell_user(stderr, "scp: unable to open directory %s: %s",
1201 fname, fxp_error());
1202 if (must_free_fname) sfree(fname);
1206 nnames = namesize = 0;
1211 sftp_register(req = fxp_readdir_send(dirhandle));
1212 rreq = sftp_find_request(pktin = sftp_recv());
1213 assert(rreq == req);
1214 names = fxp_readdir_recv(pktin, rreq);
1216 if (names == NULL) {
1217 if (fxp_error_type() == SSH_FX_EOF)
1219 tell_user(stderr, "scp: reading directory %s: %s\n",
1220 fname, fxp_error());
1221 if (must_free_fname) sfree(fname);
1226 if (names->nnames == 0) {
1227 fxp_free_names(names);
1230 if (nnames + names->nnames >= namesize) {
1231 namesize += names->nnames + 128;
1232 ournames = sresize(ournames, namesize, struct fxp_name);
1234 for (i = 0; i < names->nnames; i++)
1235 ournames[nnames++] = names->names[i];
1236 names->nnames = 0; /* prevent free_names */
1237 fxp_free_names(names);
1239 sftp_register(req = fxp_close_send(dirhandle));
1240 rreq = sftp_find_request(pktin = sftp_recv());
1241 assert(rreq == req);
1242 fxp_close_recv(pktin, rreq);
1244 newitem = snew(struct scp_sftp_dirstack);
1245 newitem->next = scp_sftp_dirstack_head;
1246 newitem->names = ournames;
1247 newitem->namepos = 0;
1248 newitem->namelen = nnames;
1249 if (must_free_fname)
1250 newitem->dirpath = fname;
1252 newitem->dirpath = dupstr(fname);
1253 if (scp_sftp_wildcard) {
1254 newitem->wildcard = scp_sftp_wildcard;
1255 newitem->matched_something = 0;
1256 scp_sftp_wildcard = NULL;
1258 newitem->wildcard = NULL;
1260 scp_sftp_dirstack_head = newitem;
1262 if (newitem->wildcard) {
1263 act->action = SCP_SINK_RETRY;
1265 act->action = SCP_SINK_DIR;
1266 act->buf = dupstr(stripslashes(fname, 0));
1267 act->name = act->buf;
1268 act->size = 0; /* duhh, it's a directory */
1269 act->mode = 07777 & attrs.permissions;
1270 if (scp_sftp_preserve &&
1271 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1272 act->atime = attrs.atime;
1273 act->mtime = attrs.mtime;
1282 * It's a file. Return SCP_SINK_FILE.
1284 act->action = SCP_SINK_FILE;
1285 act->buf = dupstr(stripslashes(fname, 0));
1286 act->name = act->buf;
1287 if (attrs.flags & SSH_FILEXFER_ATTR_SIZE) {
1288 if (uint64_compare(attrs.size,
1289 uint64_make(0, ULONG_MAX)) > 0) {
1290 act->size = ULONG_MAX; /* *boggle* */
1292 act->size = attrs.size.lo;
1294 act->size = ULONG_MAX; /* no idea */
1295 act->mode = 07777 & attrs.permissions;
1296 if (scp_sftp_preserve &&
1297 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1298 act->atime = attrs.atime;
1299 act->mtime = attrs.mtime;
1303 if (must_free_fname)
1304 scp_sftp_currentname = fname;
1306 scp_sftp_currentname = dupstr(fname);
1321 if (ssh_scp_recv(&ch, 1) <= 0)
1324 bump("Protocol error: Unexpected newline");
1328 if (ssh_scp_recv(&ch, 1) <= 0)
1329 bump("Lost connection");
1332 act->buf = sresize(act->buf, bufsize, char);
1335 } while (ch != '\n');
1336 act->buf[i - 1] = '\0';
1338 case '\01': /* error */
1339 tell_user(stderr, "%s\n", act->buf);
1341 continue; /* go round again */
1342 case '\02': /* fatal error */
1343 bump("%s", act->buf);
1345 back->send(backhandle, "", 1);
1346 act->action = SCP_SINK_ENDDIR;
1349 if (sscanf(act->buf, "%ld %*d %ld %*d",
1350 &act->mtime, &act->atime) == 2) {
1352 back->send(backhandle, "", 1);
1353 continue; /* go round again */
1355 bump("Protocol error: Illegal time format");
1358 act->action = (action == 'C' ? SCP_SINK_FILE : SCP_SINK_DIR);
1361 bump("Protocol error: Expected control record");
1364 * We will go round this loop only once, unless we hit
1371 * If we get here, we must have seen SCP_SINK_FILE or
1374 if (sscanf(act->buf, "%o %lu %n", &act->mode, &act->size, &i) != 2)
1375 bump("Protocol error: Illegal file descriptor format");
1376 act->name = act->buf + i;
1381 int scp_accept_filexfer(void)
1384 struct sftp_packet *pktin;
1385 struct sftp_request *req, *rreq;
1387 sftp_register(req = fxp_open_send(scp_sftp_currentname, SSH_FXF_READ));
1388 rreq = sftp_find_request(pktin = sftp_recv());
1389 assert(rreq == req);
1390 scp_sftp_filehandle = fxp_open_recv(pktin, rreq);
1392 if (!scp_sftp_filehandle) {
1393 tell_user(stderr, "pscp: unable to open %s: %s",
1394 scp_sftp_currentname, fxp_error());
1398 scp_sftp_fileoffset = uint64_make(0, 0);
1399 scp_sftp_xfer = xfer_download_init(scp_sftp_filehandle,
1400 scp_sftp_fileoffset);
1401 sfree(scp_sftp_currentname);
1404 back->send(backhandle, "", 1);
1405 return 0; /* can't fail */
1409 int scp_recv_filedata(char *data, int len)
1412 struct sftp_packet *pktin;
1416 xfer_download_queue(scp_sftp_xfer);
1417 pktin = sftp_recv();
1418 ret = xfer_download_gotpkt(scp_sftp_xfer, pktin);
1421 tell_user(stderr, "pscp: error while reading: %s", fxp_error());
1426 if (xfer_download_data(scp_sftp_xfer, &vbuf, &actuallen)) {
1428 * This assertion relies on the fact that the natural
1429 * block size used in the xfer manager is at most that
1430 * used in this module. I don't like crossing layers in
1431 * this way, but it'll do for now.
1433 assert(actuallen <= len);
1434 memcpy(data, vbuf, actuallen);
1439 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, actuallen);
1443 return ssh_scp_recv(data, len);
1447 int scp_finish_filerecv(void)
1450 struct sftp_packet *pktin;
1451 struct sftp_request *req, *rreq;
1454 * Ensure that xfer_done() will work correctly, so we can
1455 * clean up any outstanding requests from the file
1458 xfer_set_error(scp_sftp_xfer);
1459 while (!xfer_done(scp_sftp_xfer)) {
1463 pktin = sftp_recv();
1464 xfer_download_gotpkt(scp_sftp_xfer, pktin);
1465 if (xfer_download_data(scp_sftp_xfer, &vbuf, &len))
1468 xfer_cleanup(scp_sftp_xfer);
1470 sftp_register(req = fxp_close_send(scp_sftp_filehandle));
1471 rreq = sftp_find_request(pktin = sftp_recv());
1472 assert(rreq == req);
1473 fxp_close_recv(pktin, rreq);
1476 back->send(backhandle, "", 1);
1481 /* ----------------------------------------------------------------------
1482 * Send an error message to the other side and to the screen.
1483 * Increment error counter.
1485 static void run_err(const char *fmt, ...)
1491 str = dupvprintf(fmt, ap);
1492 str2 = dupcat("scp: ", str, "\n", NULL);
1494 scp_send_errmsg(str2);
1495 tell_user(stderr, "%s", str2);
1501 * Execute the source part of the SCP protocol.
1503 static void source(char *src)
1506 unsigned long mtime, atime;
1511 unsigned long stat_bytes;
1512 time_t stat_starttime, stat_lasttime;
1514 attr = file_type(src);
1515 if (attr == FILE_TYPE_NONEXISTENT ||
1516 attr == FILE_TYPE_WEIRD) {
1517 run_err("%s: %s file or directory", src,
1518 (attr == FILE_TYPE_WEIRD ? "Not a" : "No such"));
1522 if (attr == FILE_TYPE_DIRECTORY) {
1525 * Avoid . and .. directories.
1528 p = strrchr(src, '/');
1530 p = strrchr(src, '\\');
1535 if (!strcmp(p, ".") || !strcmp(p, ".."))
1536 /* skip . and .. */ ;
1540 run_err("%s: not a regular file", src);
1545 if ((last = strrchr(src, '/')) == NULL)
1549 if (strrchr(last, '\\') != NULL)
1550 last = strrchr(last, '\\') + 1;
1551 if (last == src && strchr(src, ':') != NULL)
1552 last = strchr(src, ':') + 1;
1554 f = open_existing_file(src, &size, &mtime, &atime);
1556 run_err("%s: Cannot open file", src);
1560 if (scp_send_filetimes(mtime, atime))
1565 tell_user(stderr, "Sending file %s, size=%lu", last, size);
1566 if (scp_send_filename(last, size, 0644))
1570 stat_starttime = time(NULL);
1573 for (i = 0; i < size; i += 4096) {
1574 char transbuf[4096];
1579 if ((j = read_from_file(f, transbuf, k)) != k) {
1582 bump("%s: Read error", src);
1584 if (scp_send_filedata(transbuf, k))
1585 bump("%s: Network error occurred", src);
1589 if (time(NULL) != stat_lasttime || i + k == size) {
1590 stat_lasttime = time(NULL);
1591 print_stats(last, size, stat_bytes,
1592 stat_starttime, stat_lasttime);
1599 (void) scp_send_finish();
1603 * Recursively send the contents of a directory.
1605 static void rsource(char *src)
1611 if ((last = strrchr(src, '/')) == NULL)
1615 if (strrchr(last, '\\') != NULL)
1616 last = strrchr(last, '\\') + 1;
1617 if (last == src && strchr(src, ':') != NULL)
1618 last = strchr(src, ':') + 1;
1620 /* maybe send filetime */
1622 save_target = scp_save_remotepath();
1625 tell_user(stderr, "Entering directory: %s", last);
1626 if (scp_send_dirname(last, 0755))
1629 dir = open_directory(src);
1632 while ((filename = read_filename(dir)) != NULL) {
1633 char *foundfile = dupcat(src, "/", filename, NULL);
1639 close_directory(dir);
1641 (void) scp_send_enddir();
1643 scp_restore_remotepath(save_target);
1647 * Execute the sink part of the SCP protocol.
1649 static void sink(char *targ, char *src)
1656 unsigned long received;
1658 unsigned long stat_bytes;
1659 time_t stat_starttime, stat_lasttime;
1662 attr = file_type(targ);
1663 if (attr == FILE_TYPE_DIRECTORY)
1666 if (targetshouldbedirectory && !targisdir)
1667 bump("%s: Not a directory", targ);
1671 struct scp_sink_action act;
1672 if (scp_get_sink_action(&act))
1675 if (act.action == SCP_SINK_ENDDIR)
1678 if (act.action == SCP_SINK_RETRY)
1683 * Prevent the remote side from maliciously writing to
1684 * files outside the target area by sending a filename
1685 * containing `../'. In fact, it shouldn't be sending
1686 * filenames with any slashes or colons in at all; so
1687 * we'll find the last slash, backslash or colon in the
1688 * filename and use only the part after that. (And
1691 * In addition, we also ensure here that if we're
1692 * copying a single file and the target is a directory
1693 * (common usage: `pscp host:filename .') the remote
1694 * can't send us a _different_ file name. We can
1695 * distinguish this case because `src' will be non-NULL
1696 * and the last component of that will fail to match
1697 * (the last component of) the name sent.
1699 * Well, not always; if `src' is a wildcard, we do
1700 * expect to get back filenames that don't correspond
1701 * exactly to it. Ideally in this case, we would like
1702 * to ensure that the returned filename actually
1703 * matches the wildcard pattern - but one of SCP's
1704 * protocol infelicities is that wildcard matching is
1705 * done at the server end _by the server's rules_ and
1706 * so in general this is infeasible. Hence, we only
1707 * accept filenames that don't correspond to `src' if
1708 * unsafe mode is enabled or we are using SFTP (which
1709 * resolves remote wildcards on the client side and can
1712 char *striptarget, *stripsrc;
1714 striptarget = stripslashes(act.name, 1);
1715 if (striptarget != act.name) {
1716 tell_user(stderr, "warning: remote host sent a compound"
1717 " pathname '%s'", act.name);
1718 tell_user(stderr, " renaming local file to '%s'",
1723 * Also check to see if the target filename is '.' or
1724 * '..', or indeed '...' and so on because Windows
1725 * appears to interpret those like '..'.
1727 if (is_dots(striptarget)) {
1728 bump("security violation: remote host attempted to write to"
1729 " a '.' or '..' path!");
1733 stripsrc = stripslashes(src, 1);
1734 if (strcmp(striptarget, stripsrc) &&
1735 !using_sftp && !scp_unsafe_mode) {
1736 tell_user(stderr, "warning: remote host tried to write "
1737 "to a file called '%s'", striptarget);
1738 tell_user(stderr, " when we requested a file "
1739 "called '%s'.", stripsrc);
1740 tell_user(stderr, " If this is a wildcard, "
1741 "consider upgrading to SSH 2 or using");
1742 tell_user(stderr, " the '-unsafe' option. Renaming"
1743 " of this file has been disallowed.");
1744 /* Override the name the server provided with our own. */
1745 striptarget = stripsrc;
1749 if (targ[0] != '\0')
1750 destfname = dir_file_cat(targ, striptarget);
1752 destfname = dupstr(striptarget);
1755 * In this branch of the if, the target area is a
1756 * single file with an explicitly specified name in any
1757 * case, so there's no danger.
1759 destfname = dupstr(targ);
1761 attr = file_type(destfname);
1762 exists = (attr != FILE_TYPE_NONEXISTENT);
1764 if (act.action == SCP_SINK_DIR) {
1765 if (exists && attr != FILE_TYPE_DIRECTORY) {
1766 run_err("%s: Not a directory", destfname);
1770 if (!create_directory(destfname)) {
1771 run_err("%s: Cannot create directory", destfname);
1775 sink(destfname, NULL);
1776 /* can we set the timestamp for directories ? */
1780 f = open_new_file(destfname);
1782 run_err("%s: Cannot create file", destfname);
1786 if (scp_accept_filexfer())
1790 stat_starttime = time(NULL);
1792 stat_name = stripslashes(destfname, 1);
1795 while (received < act.size) {
1796 char transbuf[4096];
1799 if (blksize > (int)(act.size - received))
1800 blksize = act.size - received;
1801 read = scp_recv_filedata(transbuf, blksize);
1803 bump("Lost connection");
1806 if (write_to_file(f, transbuf, read) != (int)read) {
1808 /* FIXME: in sftp we can actually abort the transfer */
1810 printf("\r%-25.25s | %50s\n",
1812 "Write error.. waiting for end of file");
1817 if (time(NULL) > stat_lasttime ||
1818 received + read == act.size) {
1819 stat_lasttime = time(NULL);
1820 print_stats(stat_name, act.size, stat_bytes,
1821 stat_starttime, stat_lasttime);
1827 set_file_times(f, act.mtime, act.atime);
1832 run_err("%s: Write error", destfname);
1835 (void) scp_finish_filerecv();
1842 * We will copy local files to a remote server.
1844 static void toremote(int argc, char *argv[])
1846 char *src, *targ, *host, *user;
1850 targ = argv[argc - 1];
1852 /* Separate host from filename */
1856 bump("targ == NULL in toremote()");
1860 /* Substitute "." for emtpy target */
1862 /* Separate host and username */
1864 host = strrchr(host, '@');
1875 if (colon(argv[0]) != NULL)
1876 bump("%s: Remote to remote not supported", argv[0]);
1878 wc_type = test_wildcard(argv[0], 1);
1879 if (wc_type == WCTYPE_NONEXISTENT)
1880 bump("%s: No such file or directory\n", argv[0]);
1881 else if (wc_type == WCTYPE_WILDCARD)
1882 targetshouldbedirectory = 1;
1885 cmd = dupprintf("scp%s%s%s%s -t %s",
1886 verbose ? " -v" : "",
1887 recursive ? " -r" : "",
1888 preserve ? " -p" : "",
1889 targetshouldbedirectory ? " -d" : "", targ);
1890 do_cmd(host, user, cmd);
1893 scp_source_setup(targ, targetshouldbedirectory);
1895 for (i = 0; i < argc - 1; i++) {
1897 if (colon(src) != NULL) {
1898 tell_user(stderr, "%s: Remote to remote not supported\n", src);
1903 wc_type = test_wildcard(src, 1);
1904 if (wc_type == WCTYPE_NONEXISTENT) {
1905 run_err("%s: No such file or directory", src);
1907 } else if (wc_type == WCTYPE_FILENAME) {
1911 WildcardMatcher *wc;
1914 wc = begin_wildcard_matching(src);
1916 run_err("%s: No such file or directory", src);
1920 while ((filename = wildcard_get_filename(wc)) != NULL) {
1925 finish_wildcard_matching(wc);
1931 * We will copy files from a remote server to the local machine.
1933 static void tolocal(int argc, char *argv[])
1935 char *src, *targ, *host, *user;
1939 bump("More than one remote source not supported");
1944 /* Separate host from filename */
1948 bump("Local to local copy not supported");
1952 /* Substitute "." for empty filename */
1954 /* Separate username and hostname */
1956 host = strrchr(host, '@');
1966 cmd = dupprintf("scp%s%s%s%s -f %s",
1967 verbose ? " -v" : "",
1968 recursive ? " -r" : "",
1969 preserve ? " -p" : "",
1970 targetshouldbedirectory ? " -d" : "", src);
1971 do_cmd(host, user, cmd);
1974 if (scp_sink_setup(src, preserve, recursive))
1981 * We will issue a list command to get a remote directory.
1983 static void get_dir_list(int argc, char *argv[])
1985 char *src, *host, *user;
1991 /* Separate host from filename */
1995 bump("Local to local copy not supported");
1999 /* Substitute "." for empty filename */
2001 /* Separate username and hostname */
2003 host = strrchr(host, '@');
2013 cmd = snewn(4 * strlen(src) + 100, char);
2014 strcpy(cmd, "ls -la '");
2015 p = cmd + strlen(cmd);
2016 for (q = src; *q; q++) {
2029 do_cmd(host, user, cmd);
2033 scp_sftp_listdir(src);
2035 while (ssh_scp_recv(&c, 1) > 0)
2036 tell_char(stdout, c);
2041 * Short description of parameters.
2043 static void usage(void)
2045 printf("PuTTY Secure Copy client\n");
2046 printf("%s\n", ver);
2047 printf("Usage: pscp [options] [user@]host:source target\n");
2049 (" pscp [options] source [source...] [user@]host:target\n");
2050 printf(" pscp [options] -ls user@host:filespec\n");
2051 printf("Options:\n");
2052 printf(" -p preserve file attributes\n");
2053 printf(" -q quiet, don't show statistics\n");
2054 printf(" -r copy directories recursively\n");
2055 printf(" -v show verbose messages\n");
2056 printf(" -load sessname Load settings from saved session\n");
2057 printf(" -P port connect to specified port\n");
2058 printf(" -l user connect with specified username\n");
2059 printf(" -pw passw login with specified password\n");
2060 printf(" -1 -2 force use of particular SSH protocol version\n");
2061 printf(" -C enable compression\n");
2062 printf(" -i key private key file for authentication\n");
2063 printf(" -batch disable all interactive prompts\n");
2064 printf(" -unsafe allow server-side wildcards (DANGEROUS)\n");
2067 * -gui is an internal option, used by GUI front ends to get
2068 * pscp to pass progress reports back to them. It's not an
2069 * ordinary user-accessible option, so it shouldn't be part of
2070 * the command-line help. The only people who need to know
2071 * about it are programmers, and they can read the source.
2074 (" -gui hWnd GUI mode with the windows handle for receiving messages\n");
2079 void cmdline_error(char *p, ...)
2082 fprintf(stderr, "pscp: ");
2084 vfprintf(stderr, p, ap);
2086 fprintf(stderr, "\n try typing just \"pscp\" for help\n");
2091 * Main program. (Called `psftp_main' because it gets called from
2092 * *sftp.c; bit silly, I know, but it had to be called _something_.)
2094 int psftp_main(int argc, char *argv[])
2098 default_protocol = PROT_TELNET;
2101 #ifdef FLAG_SYNCAGENT
2105 cmdline_tooltype = TOOLTYPE_FILETRANSFER;
2106 ssh_get_line = &console_get_line;
2109 for (i = 1; i < argc; i++) {
2111 if (argv[i][0] != '-')
2113 ret = cmdline_process_param(argv[i], i+1<argc?argv[i+1]:NULL, 1, &cfg);
2115 cmdline_error("option \"%s\" requires an argument", argv[i]);
2116 } else if (ret == 2) {
2117 i++; /* skip next argument */
2118 } else if (ret == 1) {
2119 /* We have our own verbosity in addition to `flags'. */
2120 if (flags & FLAG_VERBOSE)
2122 } else if (strcmp(argv[i], "-r") == 0) {
2124 } else if (strcmp(argv[i], "-p") == 0) {
2126 } else if (strcmp(argv[i], "-q") == 0) {
2128 } else if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "-?") == 0) {
2130 } else if (strcmp(argv[i], "-gui") == 0 && i + 1 < argc) {
2131 gui_enable(argv[++i]);
2133 console_batch_mode = TRUE;
2134 } else if (strcmp(argv[i], "-ls") == 0) {
2136 } else if (strcmp(argv[i], "-batch") == 0) {
2137 console_batch_mode = 1;
2138 } else if (strcmp(argv[i], "-unsafe") == 0) {
2139 scp_unsafe_mode = 1;
2140 } else if (strcmp(argv[i], "--") == 0) {
2144 cmdline_error("unknown option \"%s\"", argv[i]);
2154 get_dir_list(argc, argv);
2161 targetshouldbedirectory = 1;
2163 if (colon(argv[argc - 1]) != NULL)
2164 toremote(argc, argv);
2166 tolocal(argc, argv);
2169 if (back != NULL && back->socket(backhandle) != NULL) {
2171 back->special(backhandle, TS_EOF);
2172 ssh_scp_recv(&ch, 1);
2177 gui_send_errcount(list, errs);
2179 return (errs == 0 ? 0 : 1);