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.)
30 #define PUTTY_DO_GLOBALS
37 #define TIME_POSIX_TO_WIN(t, ft) (*(LONGLONG*)&(ft) = \
38 ((LONGLONG) (t) + (LONGLONG) 11644473600) * (LONGLONG) 10000000)
39 #define TIME_WIN_TO_POSIX(ft, t) ((t) = (unsigned long) \
40 ((*(LONGLONG*)&(ft)) / (LONGLONG) 10000000 - (LONGLONG) 11644473600))
42 /* GUI Adaptation - Sept 2000 */
44 /* This is just a base value from which the main message numbers are
46 #define WM_APP_BASE 0x8000
48 /* These two pass a single character value in wParam. They represent
49 * the visible output from PSCP. */
50 #define WM_STD_OUT_CHAR ( WM_APP_BASE+400 )
51 #define WM_STD_ERR_CHAR ( WM_APP_BASE+401 )
53 /* These pass a transfer status update. WM_STATS_CHAR passes a single
54 * character in wParam, and is called repeatedly to pass the name of
55 * the file, terminated with "\n". WM_STATS_SIZE passes the size of
56 * the file being transferred in wParam. WM_STATS_ELAPSED is called
57 * to pass the elapsed time (in seconds) in wParam, and
58 * WM_STATS_PERCENT passes the percentage of the transfer which is
59 * complete, also in wParam. */
60 #define WM_STATS_CHAR ( WM_APP_BASE+402 )
61 #define WM_STATS_SIZE ( WM_APP_BASE+403 )
62 #define WM_STATS_PERCENT ( WM_APP_BASE+404 )
63 #define WM_STATS_ELAPSED ( WM_APP_BASE+405 )
65 /* These are used at the end of a run to pass an error code in
66 * wParam: zero means success, nonzero means failure. WM_RET_ERR_CNT
67 * is used after a copy, and WM_LS_RET_ERR_CNT is used after a file
69 #define WM_RET_ERR_CNT ( WM_APP_BASE+406 )
70 #define WM_LS_RET_ERR_CNT ( WM_APP_BASE+407 )
72 /* More transfer status update messages. WM_STATS_DONE passes the
73 * number of bytes sent so far in wParam. WM_STATS_ETA passes the
74 * estimated time to completion (in seconds). WM_STATS_RATEBS passes
75 * the average transfer rate (in bytes per second). */
76 #define WM_STATS_DONE ( WM_APP_BASE+408 )
77 #define WM_STATS_ETA ( WM_APP_BASE+409 )
78 #define WM_STATS_RATEBS ( WM_APP_BASE+410 )
81 static int verbose = 0;
82 static int recursive = 0;
83 static int preserve = 0;
84 static int targetshouldbedirectory = 0;
85 static int statistics = 1;
86 static int prev_stats_len = 0;
87 static int scp_unsafe_mode = 0;
89 /* GUI Adaptation - Sept 2000 */
90 #define NAME_STR_MAX 2048
91 static char statname[NAME_STR_MAX + 1];
92 static unsigned long statsize = 0;
93 static unsigned long statdone = 0;
94 static unsigned long stateta = 0;
95 static unsigned long statratebs = 0;
96 static int statperct = 0;
97 static unsigned long statelapsed = 0;
98 static int gui_mode = 0;
99 static char *gui_hwnd = NULL;
100 static int using_sftp = 0;
102 static Backend *back;
103 static void *backhandle;
106 static void source(char *src);
107 static void rsource(char *src);
108 static void sink(char *targ, char *src);
109 /* GUI Adaptation - Sept 2000 */
110 static void tell_char(FILE * stream, char c);
111 static void tell_str(FILE * stream, char *str);
112 static void tell_user(FILE * stream, char *fmt, ...);
113 static void gui_update_stats(char *name, unsigned long size,
114 int percentage, unsigned long elapsed,
115 unsigned long done, unsigned long eta,
116 unsigned long ratebs);
119 * The maximum amount of queued data we accept before we stop and
120 * wait for the server to process some.
122 #define MAX_SCP_BUFSIZE 16384
124 void ldisc_send(void *handle, char *buf, int len, int interactive)
127 * This is only here because of the calls to ldisc_send(NULL,
128 * 0) in ssh.c. Nothing in PSCP actually needs to use the ldisc
129 * as an ldisc. So if we get called with any real data, I want
135 /* GUI Adaptation - Sept 2000 */
136 static void send_msg(HWND h, UINT message, WPARAM wParam)
138 while (!PostMessage(h, message, wParam, 0))
142 static void tell_char(FILE * stream, char c)
147 unsigned int msg_id = WM_STD_OUT_CHAR;
148 if (stream == stderr)
149 msg_id = WM_STD_ERR_CHAR;
150 send_msg((HWND) atoi(gui_hwnd), msg_id, (WPARAM) c);
154 static void tell_str(FILE * stream, char *str)
158 for (i = 0; i < strlen(str); ++i)
159 tell_char(stream, str[i]);
162 static void tell_user(FILE * stream, char *fmt, ...)
167 str = dupvprintf(fmt, ap);
169 str2 = dupcat(str, "\n", NULL);
171 tell_str(stream, str2);
175 static void gui_update_stats(char *name, unsigned long size,
176 int percentage, unsigned long elapsed,
177 unsigned long done, unsigned long eta,
178 unsigned long ratebs)
182 if (strcmp(name, statname) != 0) {
183 for (i = 0; i < strlen(name); ++i)
184 send_msg((HWND) atoi(gui_hwnd), WM_STATS_CHAR,
186 send_msg((HWND) atoi(gui_hwnd), WM_STATS_CHAR, (WPARAM) '\n');
187 strcpy(statname, name);
189 if (statsize != size) {
190 send_msg((HWND) atoi(gui_hwnd), WM_STATS_SIZE, (WPARAM) size);
193 if (statdone != done) {
194 send_msg((HWND) atoi(gui_hwnd), WM_STATS_DONE, (WPARAM) done);
197 if (stateta != eta) {
198 send_msg((HWND) atoi(gui_hwnd), WM_STATS_ETA, (WPARAM) eta);
201 if (statratebs != ratebs) {
202 send_msg((HWND) atoi(gui_hwnd), WM_STATS_RATEBS, (WPARAM) ratebs);
205 if (statelapsed != elapsed) {
206 send_msg((HWND) atoi(gui_hwnd), WM_STATS_ELAPSED,
208 statelapsed = elapsed;
210 if (statperct != percentage) {
211 send_msg((HWND) atoi(gui_hwnd), WM_STATS_PERCENT,
212 (WPARAM) percentage);
213 statperct = percentage;
218 * Print an error message and perform a fatal exit.
220 void fatalbox(char *fmt, ...)
225 str = dupvprintf(fmt, ap);
226 str2 = dupcat("Fatal: ", str, "\n", NULL);
229 tell_str(stderr, str2);
234 unsigned int msg_id = WM_RET_ERR_CNT;
236 msg_id = WM_LS_RET_ERR_CNT;
238 ((HWND) atoi(gui_hwnd), msg_id, (WPARAM) errs,
239 0 /*lParam */ ))SleepEx(1000, TRUE);
244 void modalfatalbox(char *fmt, ...)
249 str = dupvprintf(fmt, ap);
250 str2 = dupcat("Fatal: ", str, "\n", NULL);
253 tell_str(stderr, str2);
258 unsigned int msg_id = WM_RET_ERR_CNT;
260 msg_id = WM_LS_RET_ERR_CNT;
262 ((HWND) atoi(gui_hwnd), msg_id, (WPARAM) errs,
263 0 /*lParam */ ))SleepEx(1000, TRUE);
268 void connection_fatal(void *frontend, char *fmt, ...)
273 str = dupvprintf(fmt, ap);
274 str2 = dupcat("Fatal: ", str, "\n", NULL);
277 tell_str(stderr, str2);
282 unsigned int msg_id = WM_RET_ERR_CNT;
284 msg_id = WM_LS_RET_ERR_CNT;
286 ((HWND) atoi(gui_hwnd), msg_id, (WPARAM) errs,
287 0 /*lParam */ ))SleepEx(1000, TRUE);
294 * Be told what socket we're supposed to be using.
296 static SOCKET scp_ssh_socket;
297 char *do_select(SOCKET skt, int startup)
300 scp_ssh_socket = skt;
302 scp_ssh_socket = INVALID_SOCKET;
305 extern int select_result(WPARAM, LPARAM);
308 * In pscp, all agent requests should be synchronous, so this is a
311 void agent_schedule_callback(void (*callback)(void *, void *, int),
312 void *callback_ctx, void *data, int len)
314 assert(!"We shouldn't be here");
318 * Receive a block of data from the SSH link. Block until all data
321 * To do this, we repeatedly call the SSH protocol module, with our
322 * own trap in from_backend() to catch the data that comes back. We
323 * do this until we have enough data.
326 static unsigned char *outptr; /* where to put the data */
327 static unsigned outlen; /* how much data required */
328 static unsigned char *pending = NULL; /* any spare data */
329 static unsigned pendlen = 0, pendsize = 0; /* length and phys. size of buffer */
330 int from_backend(void *frontend, int is_stderr, const char *data, int datalen)
332 unsigned char *p = (unsigned char *) data;
333 unsigned len = (unsigned) datalen;
338 * stderr data is just spouted to local stderr and otherwise
342 fwrite(data, 1, len, stderr);
347 * If this is before the real session begins, just return.
353 unsigned used = outlen;
356 memcpy(outptr, p, used);
364 if (pendsize < pendlen + len) {
365 pendsize = pendlen + len + 4096;
366 pending = sresize(pending, pendsize, unsigned char);
368 fatalbox("Out of memory");
370 memcpy(pending + pendlen, p, len);
376 static int scp_process_network_event(void)
381 FD_SET(scp_ssh_socket, &readfds);
382 if (select(1, &readfds, NULL, NULL, NULL) < 0)
384 select_result((WPARAM) scp_ssh_socket, (LPARAM) FD_READ);
387 static int ssh_scp_recv(unsigned char *buf, int len)
393 * See if the pending-input block contains some of what we
397 unsigned pendused = pendlen;
398 if (pendused > outlen)
400 memcpy(outptr, pending, pendused);
401 memmove(pending, pending + pendused, pendlen - pendused);
415 if (!scp_process_network_event())
423 * Loop through the ssh connection and authentication process.
425 static void ssh_scp_init(void)
427 if (scp_ssh_socket == INVALID_SOCKET)
429 while (!back->sendok(backhandle)) {
432 FD_SET(scp_ssh_socket, &readfds);
433 if (select(1, &readfds, NULL, NULL, NULL) < 0)
435 select_result((WPARAM) scp_ssh_socket, (LPARAM) FD_READ);
437 using_sftp = !ssh_fallback_cmd(backhandle);
440 tell_user(stderr, "Using SFTP");
442 tell_user(stderr, "Using SCP1");
447 * Print an error message and exit after closing the SSH link.
449 static void bump(char *fmt, ...)
454 str = dupvprintf(fmt, ap);
456 str2 = dupcat(str, "\n", NULL);
458 tell_str(stderr, str2);
462 if (back != NULL && back->socket(backhandle) != NULL) {
464 back->special(backhandle, TS_EOF);
465 ssh_scp_recv(&ch, 1);
469 unsigned int msg_id = WM_RET_ERR_CNT;
471 msg_id = WM_LS_RET_ERR_CNT;
473 ((HWND) atoi(gui_hwnd), msg_id, (WPARAM) errs,
474 0 /*lParam */ ))SleepEx(1000, TRUE);
481 * Open an SSH connection to user@host and execute cmd.
483 static void do_cmd(char *host, char *user, char *cmd)
489 if (host == NULL || host[0] == '\0')
490 bump("Empty host name");
492 /* Try to load settings for this host */
493 do_defaults(host, &cfg);
494 if (cfg.host[0] == '\0') {
495 /* No settings for this host; use defaults */
496 do_defaults(NULL, &cfg);
497 strncpy(cfg.host, host, sizeof(cfg.host) - 1);
498 cfg.host[sizeof(cfg.host) - 1] = '\0';
502 * Force use of SSH. (If they got the protocol wrong we assume the
503 * port is useless too.)
505 if (cfg.protocol != PROT_SSH) {
506 cfg.protocol = PROT_SSH;
511 * Enact command-line overrides.
513 cmdline_run_saved(&cfg);
516 * Trim leading whitespace off the hostname if it's there.
519 int space = strspn(cfg.host, " \t");
520 memmove(cfg.host, cfg.host+space, 1+strlen(cfg.host)-space);
523 /* See if host is of the form user@host */
524 if (cfg.host[0] != '\0') {
525 char *atsign = strchr(cfg.host, '@');
526 /* Make sure we're not overflowing the user field */
528 if (atsign - cfg.host < sizeof cfg.username) {
529 strncpy(cfg.username, cfg.host, atsign - cfg.host);
530 cfg.username[atsign - cfg.host] = '\0';
532 memmove(cfg.host, atsign + 1, 1 + strlen(atsign + 1));
537 * Trim a colon suffix off the hostname if it's there.
539 cfg.host[strcspn(cfg.host, ":")] = '\0';
542 * Remove any remaining whitespace from the hostname.
546 while (cfg.host[p2] != '\0') {
547 if (cfg.host[p2] != ' ' && cfg.host[p2] != '\t') {
548 cfg.host[p1] = cfg.host[p2];
557 if (user != NULL && user[0] != '\0') {
558 strncpy(cfg.username, user, sizeof(cfg.username) - 1);
559 cfg.username[sizeof(cfg.username) - 1] = '\0';
560 } else if (cfg.username[0] == '\0') {
562 if (GetUserName(user, &namelen) == FALSE)
563 bump("Empty user name");
564 user = snewn(namelen, char);
565 GetUserName(user, &namelen);
567 tell_user(stderr, "Guessing user name: %s", user);
568 strncpy(cfg.username, user, sizeof(cfg.username) - 1);
569 cfg.username[sizeof(cfg.username) - 1] = '\0';
574 * Disable scary things which shouldn't be enabled for simple
575 * things like SCP and SFTP: agent forwarding, port forwarding,
580 cfg.portfwd[0] = cfg.portfwd[1] = '\0';
583 * Attempt to start the SFTP subsystem as a first choice,
584 * falling back to the provided scp command if that fails.
586 strcpy(cfg.remote_cmd, "sftp");
587 cfg.ssh_subsys = TRUE;
588 cfg.remote_cmd_ptr2 = cmd;
589 cfg.ssh_subsys2 = FALSE;
594 err = back->init(NULL, &backhandle, &cfg, cfg.host, cfg.port, &realhost,0);
596 bump("ssh_init: %s", err);
597 logctx = log_init(NULL, &cfg);
598 back->provide_logctx(backhandle, logctx);
599 console_provide_logctx(logctx);
601 if (verbose && realhost != NULL)
602 tell_user(stderr, "Connected to %s\n", realhost);
607 * Update statistic information about current file.
609 static void print_stats(char *name, unsigned long size, unsigned long done,
610 time_t start, time_t now)
619 elap = (unsigned long) difftime(now, start);
622 ratebs = (float) done / elap;
624 ratebs = (float) done;
629 eta = (unsigned long) ((size - done) / ratebs);
630 sprintf(etastr, "%02ld:%02ld:%02ld",
631 eta / 3600, (eta % 3600) / 60, eta % 60);
633 pct = (int) (100 * (done * 1.0 / size));
636 /* GUI Adaptation - Sept 2000 */
637 gui_update_stats(name, size, pct, elap, done, eta,
638 (unsigned long) ratebs);
640 len = printf("\r%-25.25s | %10ld kB | %5.1f kB/s | ETA: %8s | %3d%%",
641 name, done / 1024, ratebs / 1024.0, etastr, pct);
642 if (len < prev_stats_len)
643 printf("%*s", prev_stats_len - len, "");
644 prev_stats_len = len;
652 * Find a colon in str and return a pointer to the colon.
653 * This is used to separate hostname from filename.
655 static char *colon(char *str)
657 /* We ignore a leading colon, since the hostname cannot be
658 empty. We also ignore a colon as second character because
659 of filenames like f:myfile.txt. */
660 if (str[0] == '\0' || str[0] == ':' || str[1] == ':')
662 while (*str != '\0' && *str != ':' && *str != '/' && *str != '\\')
671 * Return a pointer to the portion of str that comes after the last
672 * slash (or backslash or colon, if `local' is TRUE).
674 static char *stripslashes(char *str, int local)
679 p = strchr(str, ':');
683 p = strrchr(str, '/');
687 p = strrchr(str, '\\');
695 * Determine whether a string is entirely composed of dots.
697 static int is_dots(char *str)
699 return str[strspn(str, ".")] == '\0';
703 * Wait for a response from the other side.
704 * Return 0 if ok, -1 if error.
706 static int response(void)
708 char ch, resp, rbuf[2048];
711 if (ssh_scp_recv(&resp, 1) <= 0)
712 bump("Lost connection");
722 case 2: /* fatal error */
724 if (ssh_scp_recv(&ch, 1) <= 0)
725 bump("Protocol error: Lost connection");
727 } while (p < sizeof(rbuf) && ch != '\n');
730 tell_user(stderr, "%s\n", rbuf);
738 int sftp_recvdata(char *buf, int len)
740 return ssh_scp_recv(buf, len);
742 int sftp_senddata(char *buf, int len)
744 back->send(backhandle, (unsigned char *) buf, len);
748 /* ----------------------------------------------------------------------
749 * sftp-based replacement for the hacky `pscp -ls'.
751 static int sftp_ls_compare(const void *av, const void *bv)
753 const struct fxp_name *a = (const struct fxp_name *) av;
754 const struct fxp_name *b = (const struct fxp_name *) bv;
755 return strcmp(a->filename, b->filename);
757 void scp_sftp_listdir(char *dirname)
759 struct fxp_handle *dirh;
760 struct fxp_names *names;
761 struct fxp_name *ournames;
762 struct sftp_packet *pktin;
763 struct sftp_request *req, *rreq;
764 int nnames, namesize;
768 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
773 printf("Listing directory %s\n", dirname);
775 sftp_register(req = fxp_opendir_send(dirname));
776 rreq = sftp_find_request(pktin = sftp_recv());
778 dirh = fxp_opendir_recv(pktin, rreq);
781 printf("Unable to open %s: %s\n", dirname, fxp_error());
783 nnames = namesize = 0;
788 sftp_register(req = fxp_readdir_send(dirh));
789 rreq = sftp_find_request(pktin = sftp_recv());
791 names = fxp_readdir_recv(pktin, rreq);
794 if (fxp_error_type() == SSH_FX_EOF)
796 printf("Reading directory %s: %s\n", dirname, fxp_error());
799 if (names->nnames == 0) {
800 fxp_free_names(names);
804 if (nnames + names->nnames >= namesize) {
805 namesize += names->nnames + 128;
806 ournames = sresize(ournames, namesize, struct fxp_name);
809 for (i = 0; i < names->nnames; i++)
810 ournames[nnames++] = names->names[i];
812 names->nnames = 0; /* prevent free_names */
813 fxp_free_names(names);
815 sftp_register(req = fxp_close_send(dirh));
816 rreq = sftp_find_request(pktin = sftp_recv());
818 fxp_close_recv(pktin, rreq);
821 * Now we have our filenames. Sort them by actual file
822 * name, and then output the longname parts.
824 qsort(ournames, nnames, sizeof(*ournames), sftp_ls_compare);
829 for (i = 0; i < nnames; i++)
830 printf("%s\n", ournames[i].longname);
834 /* ----------------------------------------------------------------------
835 * Helper routines that contain the actual SCP protocol elements,
836 * implemented both as SCP1 and SFTP.
839 static struct scp_sftp_dirstack {
840 struct scp_sftp_dirstack *next;
841 struct fxp_name *names;
842 int namepos, namelen;
845 int matched_something; /* wildcard match set was non-empty */
846 } *scp_sftp_dirstack_head;
847 static char *scp_sftp_remotepath, *scp_sftp_currentname;
848 static char *scp_sftp_wildcard;
849 static int scp_sftp_targetisdir, scp_sftp_donethistarget;
850 static int scp_sftp_preserve, scp_sftp_recursive;
851 static unsigned long scp_sftp_mtime, scp_sftp_atime;
852 static int scp_has_times;
853 static struct fxp_handle *scp_sftp_filehandle;
854 static uint64 scp_sftp_fileoffset;
856 void scp_source_setup(char *target, int shouldbedir)
860 * Find out whether the target filespec is in fact a
863 struct sftp_packet *pktin;
864 struct sftp_request *req, *rreq;
865 struct fxp_attrs attrs;
869 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
874 sftp_register(req = fxp_stat_send(target));
875 rreq = sftp_find_request(pktin = sftp_recv());
877 ret = fxp_stat_recv(pktin, rreq, &attrs);
879 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS))
880 scp_sftp_targetisdir = 0;
882 scp_sftp_targetisdir = (attrs.permissions & 0040000) != 0;
884 if (shouldbedir && !scp_sftp_targetisdir) {
885 bump("pscp: remote filespec %s: not a directory\n", target);
888 scp_sftp_remotepath = dupstr(target);
896 int scp_send_errmsg(char *str)
899 /* do nothing; we never need to send our errors to the server */
901 back->send(backhandle, "\001", 1);/* scp protocol error prefix */
902 back->send(backhandle, str, strlen(str));
904 return 0; /* can't fail */
907 int scp_send_filetimes(unsigned long mtime, unsigned long atime)
910 scp_sftp_mtime = mtime;
911 scp_sftp_atime = atime;
916 sprintf(buf, "T%lu 0 %lu 0\n", mtime, atime);
917 back->send(backhandle, buf, strlen(buf));
922 int scp_send_filename(char *name, unsigned long size, int modes)
926 struct sftp_packet *pktin;
927 struct sftp_request *req, *rreq;
929 if (scp_sftp_targetisdir) {
930 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
932 fullname = dupstr(scp_sftp_remotepath);
935 sftp_register(req = fxp_open_send(fullname, SSH_FXF_WRITE |
936 SSH_FXF_CREAT | SSH_FXF_TRUNC));
937 rreq = sftp_find_request(pktin = sftp_recv());
939 scp_sftp_filehandle = fxp_open_recv(pktin, rreq);
941 if (!scp_sftp_filehandle) {
942 tell_user(stderr, "pscp: unable to open %s: %s",
943 fullname, fxp_error());
947 scp_sftp_fileoffset = uint64_make(0, 0);
952 sprintf(buf, "C%04o %lu ", modes, size);
953 back->send(backhandle, buf, strlen(buf));
954 back->send(backhandle, name, strlen(name));
955 back->send(backhandle, "\n", 1);
960 int scp_send_filedata(char *data, int len)
964 struct sftp_packet *pktin;
965 struct sftp_request *req, *rreq;
967 if (!scp_sftp_filehandle) {
971 sftp_register(req = fxp_write_send(scp_sftp_filehandle,
972 data, scp_sftp_fileoffset, len));
973 rreq = sftp_find_request(pktin = sftp_recv());
975 ret = fxp_write_recv(pktin, rreq);
978 tell_user(stderr, "error while writing: %s\n", fxp_error());
982 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, len);
985 int bufsize = back->send(backhandle, data, len);
988 * If the network transfer is backing up - that is, the
989 * remote site is not accepting data as fast as we can
990 * produce it - then we must loop on network events until
991 * we have space in the buffer again.
993 while (bufsize > MAX_SCP_BUFSIZE) {
994 if (!scp_process_network_event())
996 bufsize = back->sendbuffer(backhandle);
1003 int scp_send_finish(void)
1006 struct fxp_attrs attrs;
1007 struct sftp_packet *pktin;
1008 struct sftp_request *req, *rreq;
1011 if (!scp_sftp_filehandle) {
1014 if (scp_has_times) {
1015 attrs.flags = SSH_FILEXFER_ATTR_ACMODTIME;
1016 attrs.atime = scp_sftp_atime;
1017 attrs.mtime = scp_sftp_mtime;
1018 sftp_register(req = fxp_fsetstat_send(scp_sftp_filehandle, attrs));
1019 rreq = sftp_find_request(pktin = sftp_recv());
1020 assert(rreq == req);
1021 ret = fxp_fsetstat_recv(pktin, rreq);
1023 tell_user(stderr, "unable to set file times: %s\n", fxp_error());
1027 sftp_register(req = fxp_close_send(scp_sftp_filehandle));
1028 rreq = sftp_find_request(pktin = sftp_recv());
1029 assert(rreq == req);
1030 fxp_close_recv(pktin, rreq);
1034 back->send(backhandle, "", 1);
1039 char *scp_save_remotepath(void)
1042 return scp_sftp_remotepath;
1047 void scp_restore_remotepath(char *data)
1050 scp_sftp_remotepath = data;
1053 int scp_send_dirname(char *name, int modes)
1058 struct fxp_attrs attrs;
1059 struct sftp_packet *pktin;
1060 struct sftp_request *req, *rreq;
1063 if (scp_sftp_targetisdir) {
1064 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
1066 fullname = dupstr(scp_sftp_remotepath);
1070 * We don't worry about whether we managed to create the
1071 * directory, because if it exists already it's OK just to
1072 * use it. Instead, we will stat it afterwards, and if it
1073 * exists and is a directory we will assume we were either
1074 * successful or it didn't matter.
1076 sftp_register(req = fxp_mkdir_send(fullname));
1077 rreq = sftp_find_request(pktin = sftp_recv());
1078 assert(rreq == req);
1079 ret = fxp_mkdir_recv(pktin, rreq);
1084 err = "server reported no error";
1086 sftp_register(req = fxp_stat_send(fullname));
1087 rreq = sftp_find_request(pktin = sftp_recv());
1088 assert(rreq == req);
1089 ret = fxp_stat_recv(pktin, rreq, &attrs);
1091 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) ||
1092 !(attrs.permissions & 0040000)) {
1093 tell_user(stderr, "unable to create directory %s: %s",
1099 scp_sftp_remotepath = fullname;
1104 sprintf(buf, "D%04o 0 ", modes);
1105 back->send(backhandle, buf, strlen(buf));
1106 back->send(backhandle, name, strlen(name));
1107 back->send(backhandle, "\n", 1);
1112 int scp_send_enddir(void)
1115 sfree(scp_sftp_remotepath);
1118 back->send(backhandle, "E\n", 2);
1124 * Yes, I know; I have an scp_sink_setup _and_ an scp_sink_init.
1125 * That's bad. The difference is that scp_sink_setup is called once
1126 * right at the start, whereas scp_sink_init is called to
1127 * initialise every level of recursion in the protocol.
1129 int scp_sink_setup(char *source, int preserve, int recursive)
1135 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
1140 * It's possible that the source string we've been given
1141 * contains a wildcard. If so, we must split the directory
1142 * away from the wildcard itself (throwing an error if any
1143 * wildcardness comes before the final slash) and arrange
1144 * things so that a dirstack entry will be set up.
1146 newsource = snewn(1+strlen(source), char);
1147 if (!wc_unescape(newsource, source)) {
1148 /* Yes, here we go; it's a wildcard. Bah. */
1149 char *dupsource, *lastpart, *dirpart, *wildcard;
1150 dupsource = dupstr(source);
1151 lastpart = stripslashes(dupsource, 0);
1152 wildcard = dupstr(lastpart);
1154 if (*dupsource && dupsource[1]) {
1156 * The remains of dupsource are at least two
1157 * characters long, meaning the pathname wasn't
1158 * empty or just `/'. Hence, we remove the trailing
1161 lastpart[-1] = '\0';
1162 } else if (!*dupsource) {
1164 * The remains of dupsource are _empty_ - the whole
1165 * pathname was a wildcard. Hence we need to
1166 * replace it with ".".
1169 dupsource = dupstr(".");
1173 * Now we have separated our string into dupsource (the
1174 * directory part) and wildcard. Both of these will
1175 * need freeing at some point. Next step is to remove
1176 * wildcard escapes from the directory part, throwing
1177 * an error if it contains a real wildcard.
1179 dirpart = snewn(1+strlen(dupsource), char);
1180 if (!wc_unescape(dirpart, dupsource)) {
1181 tell_user(stderr, "%s: multiple-level wildcards unsupported",
1191 * Now we have dirpart (unescaped, ie a valid remote
1192 * path), and wildcard (a wildcard). This will be
1193 * sufficient to arrange a dirstack entry.
1195 scp_sftp_remotepath = dirpart;
1196 scp_sftp_wildcard = wildcard;
1199 scp_sftp_remotepath = newsource;
1200 scp_sftp_wildcard = NULL;
1202 scp_sftp_preserve = preserve;
1203 scp_sftp_recursive = recursive;
1204 scp_sftp_donethistarget = 0;
1205 scp_sftp_dirstack_head = NULL;
1210 int scp_sink_init(void)
1213 back->send(backhandle, "", 1);
1218 #define SCP_SINK_FILE 1
1219 #define SCP_SINK_DIR 2
1220 #define SCP_SINK_ENDDIR 3
1221 #define SCP_SINK_RETRY 4 /* not an action; just try again */
1222 struct scp_sink_action {
1223 int action; /* FILE, DIR, ENDDIR */
1224 char *buf; /* will need freeing after use */
1225 char *name; /* filename or dirname (not ENDDIR) */
1226 int mode; /* access mode (not ENDDIR) */
1227 unsigned long size; /* file size (not ENDDIR) */
1228 int settime; /* 1 if atime and mtime are filled */
1229 unsigned long atime, mtime; /* access times for the file */
1232 int scp_get_sink_action(struct scp_sink_action *act)
1236 int must_free_fname;
1237 struct fxp_attrs attrs;
1238 struct sftp_packet *pktin;
1239 struct sftp_request *req, *rreq;
1242 if (!scp_sftp_dirstack_head) {
1243 if (!scp_sftp_donethistarget) {
1245 * Simple case: we are only dealing with one file.
1247 fname = scp_sftp_remotepath;
1248 must_free_fname = 0;
1249 scp_sftp_donethistarget = 1;
1252 * Even simpler case: one file _which we've done_.
1253 * Return 1 (finished).
1259 * We're now in the middle of stepping through a list
1260 * of names returned from fxp_readdir(); so let's carry
1263 struct scp_sftp_dirstack *head = scp_sftp_dirstack_head;
1264 while (head->namepos < head->namelen &&
1265 (is_dots(head->names[head->namepos].filename) ||
1267 !wc_match(head->wildcard,
1268 head->names[head->namepos].filename))))
1269 head->namepos++; /* skip . and .. */
1270 if (head->namepos < head->namelen) {
1271 head->matched_something = 1;
1272 fname = dupcat(head->dirpath, "/",
1273 head->names[head->namepos++].filename,
1275 must_free_fname = 1;
1278 * We've come to the end of the list; pop it off
1279 * the stack and return an ENDDIR action (or RETRY
1280 * if this was a wildcard match).
1282 if (head->wildcard) {
1283 act->action = SCP_SINK_RETRY;
1284 if (!head->matched_something) {
1285 tell_user(stderr, "pscp: wildcard '%s' matched "
1286 "no files", head->wildcard);
1289 sfree(head->wildcard);
1292 act->action = SCP_SINK_ENDDIR;
1295 sfree(head->dirpath);
1297 scp_sftp_dirstack_head = head->next;
1305 * Now we have a filename. Stat it, and see if it's a file
1308 sftp_register(req = fxp_stat_send(fname));
1309 rreq = sftp_find_request(pktin = sftp_recv());
1310 assert(rreq == req);
1311 ret = fxp_stat_recv(pktin, rreq, &attrs);
1313 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS)) {
1314 tell_user(stderr, "unable to identify %s: %s", fname,
1315 ret ? "file type not supplied" : fxp_error());
1320 if (attrs.permissions & 0040000) {
1321 struct scp_sftp_dirstack *newitem;
1322 struct fxp_handle *dirhandle;
1323 int nnames, namesize;
1324 struct fxp_name *ournames;
1325 struct fxp_names *names;
1328 * It's a directory. If we're not in recursive mode,
1329 * this merits a complaint (which is fatal if the name
1330 * was specified directly, but not if it was matched by
1333 * We skip this complaint completely if
1334 * scp_sftp_wildcard is set, because that's an
1335 * indication that we're not actually supposed to
1336 * _recursively_ transfer the dir, just scan it for
1337 * things matching the wildcard.
1339 if (!scp_sftp_recursive && !scp_sftp_wildcard) {
1340 tell_user(stderr, "pscp: %s: is a directory", fname);
1342 if (must_free_fname) sfree(fname);
1343 if (scp_sftp_dirstack_head) {
1344 act->action = SCP_SINK_RETRY;
1352 * Otherwise, the fun begins. We must fxp_opendir() the
1353 * directory, slurp the filenames into memory, return
1354 * SCP_SINK_DIR (unless this is a wildcard match), and
1355 * set targetisdir. The next time we're called, we will
1356 * run through the list of filenames one by one,
1357 * matching them against a wildcard if present.
1359 * If targetisdir is _already_ set (meaning we're
1360 * already in the middle of going through another such
1361 * list), we must push the other (target,namelist) pair
1364 sftp_register(req = fxp_opendir_send(fname));
1365 rreq = sftp_find_request(pktin = sftp_recv());
1366 assert(rreq == req);
1367 dirhandle = fxp_opendir_recv(pktin, rreq);
1370 tell_user(stderr, "scp: unable to open directory %s: %s",
1371 fname, fxp_error());
1372 if (must_free_fname) sfree(fname);
1376 nnames = namesize = 0;
1381 sftp_register(req = fxp_readdir_send(dirhandle));
1382 rreq = sftp_find_request(pktin = sftp_recv());
1383 assert(rreq == req);
1384 names = fxp_readdir_recv(pktin, rreq);
1386 if (names == NULL) {
1387 if (fxp_error_type() == SSH_FX_EOF)
1389 tell_user(stderr, "scp: reading directory %s: %s\n",
1390 fname, fxp_error());
1391 if (must_free_fname) sfree(fname);
1396 if (names->nnames == 0) {
1397 fxp_free_names(names);
1400 if (nnames + names->nnames >= namesize) {
1401 namesize += names->nnames + 128;
1402 ournames = sresize(ournames, namesize, struct fxp_name);
1404 for (i = 0; i < names->nnames; i++)
1405 ournames[nnames++] = names->names[i];
1406 names->nnames = 0; /* prevent free_names */
1407 fxp_free_names(names);
1409 sftp_register(req = fxp_close_send(dirhandle));
1410 rreq = sftp_find_request(pktin = sftp_recv());
1411 assert(rreq == req);
1412 fxp_close_recv(pktin, rreq);
1414 newitem = snew(struct scp_sftp_dirstack);
1415 newitem->next = scp_sftp_dirstack_head;
1416 newitem->names = ournames;
1417 newitem->namepos = 0;
1418 newitem->namelen = nnames;
1419 if (must_free_fname)
1420 newitem->dirpath = fname;
1422 newitem->dirpath = dupstr(fname);
1423 if (scp_sftp_wildcard) {
1424 newitem->wildcard = scp_sftp_wildcard;
1425 newitem->matched_something = 0;
1426 scp_sftp_wildcard = NULL;
1428 newitem->wildcard = NULL;
1430 scp_sftp_dirstack_head = newitem;
1432 if (newitem->wildcard) {
1433 act->action = SCP_SINK_RETRY;
1435 act->action = SCP_SINK_DIR;
1436 act->buf = dupstr(stripslashes(fname, 0));
1437 act->name = act->buf;
1438 act->size = 0; /* duhh, it's a directory */
1439 act->mode = 07777 & attrs.permissions;
1440 if (scp_sftp_preserve &&
1441 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1442 act->atime = attrs.atime;
1443 act->mtime = attrs.mtime;
1452 * It's a file. Return SCP_SINK_FILE.
1454 act->action = SCP_SINK_FILE;
1455 act->buf = dupstr(stripslashes(fname, 0));
1456 act->name = act->buf;
1457 if (attrs.flags & SSH_FILEXFER_ATTR_SIZE) {
1458 if (uint64_compare(attrs.size,
1459 uint64_make(0, ULONG_MAX)) > 0) {
1460 act->size = ULONG_MAX; /* *boggle* */
1462 act->size = attrs.size.lo;
1464 act->size = ULONG_MAX; /* no idea */
1465 act->mode = 07777 & attrs.permissions;
1466 if (scp_sftp_preserve &&
1467 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1468 act->atime = attrs.atime;
1469 act->mtime = attrs.mtime;
1473 if (must_free_fname)
1474 scp_sftp_currentname = fname;
1476 scp_sftp_currentname = dupstr(fname);
1491 if (ssh_scp_recv(&ch, 1) <= 0)
1494 bump("Protocol error: Unexpected newline");
1498 if (ssh_scp_recv(&ch, 1) <= 0)
1499 bump("Lost connection");
1502 act->buf = sresize(act->buf, bufsize, char);
1505 } while (ch != '\n');
1506 act->buf[i - 1] = '\0';
1508 case '\01': /* error */
1509 tell_user(stderr, "%s\n", act->buf);
1511 continue; /* go round again */
1512 case '\02': /* fatal error */
1513 bump("%s", act->buf);
1515 back->send(backhandle, "", 1);
1516 act->action = SCP_SINK_ENDDIR;
1519 if (sscanf(act->buf, "%ld %*d %ld %*d",
1520 &act->mtime, &act->atime) == 2) {
1522 back->send(backhandle, "", 1);
1523 continue; /* go round again */
1525 bump("Protocol error: Illegal time format");
1528 act->action = (action == 'C' ? SCP_SINK_FILE : SCP_SINK_DIR);
1531 bump("Protocol error: Expected control record");
1534 * We will go round this loop only once, unless we hit
1541 * If we get here, we must have seen SCP_SINK_FILE or
1544 if (sscanf(act->buf, "%o %lu %n", &act->mode, &act->size, &i) != 2)
1545 bump("Protocol error: Illegal file descriptor format");
1546 act->name = act->buf + i;
1551 int scp_accept_filexfer(void)
1554 struct sftp_packet *pktin;
1555 struct sftp_request *req, *rreq;
1557 sftp_register(req = fxp_open_send(scp_sftp_currentname, SSH_FXF_READ));
1558 rreq = sftp_find_request(pktin = sftp_recv());
1559 assert(rreq == req);
1560 scp_sftp_filehandle = fxp_open_recv(pktin, rreq);
1562 if (!scp_sftp_filehandle) {
1563 tell_user(stderr, "pscp: unable to open %s: %s",
1564 scp_sftp_currentname, fxp_error());
1568 scp_sftp_fileoffset = uint64_make(0, 0);
1569 sfree(scp_sftp_currentname);
1572 back->send(backhandle, "", 1);
1573 return 0; /* can't fail */
1577 int scp_recv_filedata(char *data, int len)
1580 struct sftp_packet *pktin;
1581 struct sftp_request *req, *rreq;
1584 sftp_register(req = fxp_read_send(scp_sftp_filehandle,
1585 scp_sftp_fileoffset, len));
1586 rreq = sftp_find_request(pktin = sftp_recv());
1587 assert(rreq == req);
1588 actuallen = fxp_read_recv(pktin, rreq, data, len);
1590 if (actuallen == -1 && fxp_error_type() != SSH_FX_EOF) {
1591 tell_user(stderr, "pscp: error while reading: %s", fxp_error());
1598 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, actuallen);
1602 return ssh_scp_recv(data, len);
1606 int scp_finish_filerecv(void)
1609 struct sftp_packet *pktin;
1610 struct sftp_request *req, *rreq;
1612 sftp_register(req = fxp_close_send(scp_sftp_filehandle));
1613 rreq = sftp_find_request(pktin = sftp_recv());
1614 assert(rreq == req);
1615 fxp_close_recv(pktin, rreq);
1618 back->send(backhandle, "", 1);
1623 /* ----------------------------------------------------------------------
1624 * Send an error message to the other side and to the screen.
1625 * Increment error counter.
1627 static void run_err(const char *fmt, ...)
1633 str = dupvprintf(fmt, ap);
1634 str2 = dupcat("scp: ", str, "\n", NULL);
1636 scp_send_errmsg(str2);
1637 tell_user(stderr, "%s", str2);
1643 * Execute the source part of the SCP protocol.
1645 static void source(char *src)
1652 unsigned long stat_bytes;
1653 time_t stat_starttime, stat_lasttime;
1655 attr = GetFileAttributes(src);
1656 if (attr == (DWORD) - 1) {
1657 run_err("%s: No such file or directory", src);
1661 if ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0) {
1664 * Avoid . and .. directories.
1667 p = strrchr(src, '/');
1669 p = strrchr(src, '\\');
1674 if (!strcmp(p, ".") || !strcmp(p, ".."))
1675 /* skip . and .. */ ;
1679 run_err("%s: not a regular file", src);
1684 if ((last = strrchr(src, '/')) == NULL)
1688 if (strrchr(last, '\\') != NULL)
1689 last = strrchr(last, '\\') + 1;
1690 if (last == src && strchr(src, ':') != NULL)
1691 last = strchr(src, ':') + 1;
1693 f = CreateFile(src, GENERIC_READ, FILE_SHARE_READ, NULL,
1694 OPEN_EXISTING, 0, 0);
1695 if (f == INVALID_HANDLE_VALUE) {
1696 run_err("%s: Cannot open file", src);
1701 FILETIME actime, wrtime;
1702 unsigned long mtime, atime;
1703 GetFileTime(f, NULL, &actime, &wrtime);
1704 TIME_WIN_TO_POSIX(actime, atime);
1705 TIME_WIN_TO_POSIX(wrtime, mtime);
1706 if (scp_send_filetimes(mtime, atime))
1710 size = GetFileSize(f, NULL);
1712 tell_user(stderr, "Sending file %s, size=%lu", last, size);
1713 if (scp_send_filename(last, size, 0644))
1717 stat_starttime = time(NULL);
1720 for (i = 0; i < size; i += 4096) {
1721 char transbuf[4096];
1726 if (!ReadFile(f, transbuf, k, &j, NULL) || j != k) {
1729 bump("%s: Read error", src);
1731 if (scp_send_filedata(transbuf, k))
1732 bump("%s: Network error occurred", src);
1736 if (time(NULL) != stat_lasttime || i + k == size) {
1737 stat_lasttime = time(NULL);
1738 print_stats(last, size, stat_bytes,
1739 stat_starttime, stat_lasttime);
1746 (void) scp_send_finish();
1750 * Recursively send the contents of a directory.
1752 static void rsource(char *src)
1754 char *last, *findfile;
1757 WIN32_FIND_DATA fdat;
1760 if ((last = strrchr(src, '/')) == NULL)
1764 if (strrchr(last, '\\') != NULL)
1765 last = strrchr(last, '\\') + 1;
1766 if (last == src && strchr(src, ':') != NULL)
1767 last = strchr(src, ':') + 1;
1769 /* maybe send filetime */
1771 save_target = scp_save_remotepath();
1774 tell_user(stderr, "Entering directory: %s", last);
1775 if (scp_send_dirname(last, 0755))
1778 findfile = dupcat(src, "/*", NULL);
1779 dir = FindFirstFile(findfile, &fdat);
1780 ok = (dir != INVALID_HANDLE_VALUE);
1782 if (strcmp(fdat.cFileName, ".") == 0 ||
1783 strcmp(fdat.cFileName, "..") == 0) {
1784 /* ignore . and .. */
1786 char *foundfile = dupcat(src, "/", fdat.cFileName, NULL);
1790 ok = FindNextFile(dir, &fdat);
1795 (void) scp_send_enddir();
1797 scp_restore_remotepath(save_target);
1801 * Execute the sink part of the SCP protocol.
1803 static void sink(char *targ, char *src)
1810 unsigned long received;
1812 unsigned long stat_bytes;
1813 time_t stat_starttime, stat_lasttime;
1816 attr = GetFileAttributes(targ);
1817 if (attr != (DWORD) - 1 && (attr & FILE_ATTRIBUTE_DIRECTORY) != 0)
1820 if (targetshouldbedirectory && !targisdir)
1821 bump("%s: Not a directory", targ);
1825 struct scp_sink_action act;
1826 if (scp_get_sink_action(&act))
1829 if (act.action == SCP_SINK_ENDDIR)
1832 if (act.action == SCP_SINK_RETRY)
1837 * Prevent the remote side from maliciously writing to
1838 * files outside the target area by sending a filename
1839 * containing `../'. In fact, it shouldn't be sending
1840 * filenames with any slashes or colons in at all; so
1841 * we'll find the last slash, backslash or colon in the
1842 * filename and use only the part after that. (And
1845 * In addition, we also ensure here that if we're
1846 * copying a single file and the target is a directory
1847 * (common usage: `pscp host:filename .') the remote
1848 * can't send us a _different_ file name. We can
1849 * distinguish this case because `src' will be non-NULL
1850 * and the last component of that will fail to match
1851 * (the last component of) the name sent.
1853 * Well, not always; if `src' is a wildcard, we do
1854 * expect to get back filenames that don't correspond
1855 * exactly to it. Ideally in this case, we would like
1856 * to ensure that the returned filename actually
1857 * matches the wildcard pattern - but one of SCP's
1858 * protocol infelicities is that wildcard matching is
1859 * done at the server end _by the server's rules_ and
1860 * so in general this is infeasible. Hence, we only
1861 * accept filenames that don't correspond to `src' if
1862 * unsafe mode is enabled or we are using SFTP (which
1863 * resolves remote wildcards on the client side and can
1866 char *striptarget, *stripsrc;
1868 striptarget = stripslashes(act.name, 1);
1869 if (striptarget != act.name) {
1870 tell_user(stderr, "warning: remote host sent a compound"
1871 " pathname '%s'", act.name);
1872 tell_user(stderr, " renaming local file to '%s'",
1877 * Also check to see if the target filename is '.' or
1878 * '..', or indeed '...' and so on because Windows
1879 * appears to interpret those like '..'.
1881 if (is_dots(striptarget)) {
1882 bump("security violation: remote host attempted to write to"
1883 " a '.' or '..' path!");
1887 stripsrc = stripslashes(src, 1);
1888 if (strcmp(striptarget, stripsrc) &&
1889 !using_sftp && !scp_unsafe_mode) {
1890 tell_user(stderr, "warning: remote host tried to write "
1891 "to a file called '%s'", striptarget);
1892 tell_user(stderr, " when we requested a file "
1893 "called '%s'.", stripsrc);
1894 tell_user(stderr, " If this is a wildcard, "
1895 "consider upgrading to SSH 2 or using");
1896 tell_user(stderr, " the '-unsafe' option. Renaming"
1897 " of this file has been disallowed.");
1898 /* Override the name the server provided with our own. */
1899 striptarget = stripsrc;
1903 if (targ[0] != '\0')
1904 destfname = dupcat(targ, "\\", striptarget, NULL);
1906 destfname = dupstr(striptarget);
1909 * In this branch of the if, the target area is a
1910 * single file with an explicitly specified name in any
1911 * case, so there's no danger.
1913 destfname = dupstr(targ);
1915 attr = GetFileAttributes(destfname);
1916 exists = (attr != (DWORD) - 1);
1918 if (act.action == SCP_SINK_DIR) {
1919 if (exists && (attr & FILE_ATTRIBUTE_DIRECTORY) == 0) {
1920 run_err("%s: Not a directory", destfname);
1924 if (!CreateDirectory(destfname, NULL)) {
1925 run_err("%s: Cannot create directory", destfname);
1929 sink(destfname, NULL);
1930 /* can we set the timestamp for directories ? */
1934 f = CreateFile(destfname, GENERIC_WRITE, 0, NULL,
1935 CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
1936 if (f == INVALID_HANDLE_VALUE) {
1937 run_err("%s: Cannot create file", destfname);
1941 if (scp_accept_filexfer())
1945 stat_starttime = time(NULL);
1947 stat_name = stripslashes(destfname, 1);
1950 while (received < act.size) {
1951 char transbuf[4096];
1952 DWORD blksize, read, written;
1954 if (blksize > act.size - received)
1955 blksize = act.size - received;
1956 read = scp_recv_filedata(transbuf, blksize);
1958 bump("Lost connection");
1961 if (!WriteFile(f, transbuf, read, &written, NULL) ||
1964 /* FIXME: in sftp we can actually abort the transfer */
1966 printf("\r%-25.25s | %50s\n",
1968 "Write error.. waiting for end of file");
1973 if (time(NULL) > stat_lasttime ||
1974 received + read == act.size) {
1975 stat_lasttime = time(NULL);
1976 print_stats(stat_name, act.size, stat_bytes,
1977 stat_starttime, stat_lasttime);
1983 FILETIME actime, wrtime;
1984 TIME_POSIX_TO_WIN(act.atime, actime);
1985 TIME_POSIX_TO_WIN(act.mtime, wrtime);
1986 SetFileTime(f, NULL, &actime, &wrtime);
1991 run_err("%s: Write error", destfname);
1994 (void) scp_finish_filerecv();
2001 * We will copy local files to a remote server.
2003 static void toremote(int argc, char *argv[])
2005 char *src, *targ, *host, *user;
2009 targ = argv[argc - 1];
2011 /* Separate host from filename */
2015 bump("targ == NULL in toremote()");
2019 /* Substitute "." for emtpy target */
2021 /* Separate host and username */
2023 host = strrchr(host, '@');
2034 /* Find out if the source filespec covers multiple files
2035 if so, we should set the targetshouldbedirectory flag */
2037 WIN32_FIND_DATA fdat;
2038 if (colon(argv[0]) != NULL)
2039 bump("%s: Remote to remote not supported", argv[0]);
2040 fh = FindFirstFile(argv[0], &fdat);
2041 if (fh == INVALID_HANDLE_VALUE)
2042 bump("%s: No such file or directory\n", argv[0]);
2043 if (FindNextFile(fh, &fdat))
2044 targetshouldbedirectory = 1;
2048 cmd = dupprintf("scp%s%s%s%s -t %s",
2049 verbose ? " -v" : "",
2050 recursive ? " -r" : "",
2051 preserve ? " -p" : "",
2052 targetshouldbedirectory ? " -d" : "", targ);
2053 do_cmd(host, user, cmd);
2056 scp_source_setup(targ, targetshouldbedirectory);
2058 for (i = 0; i < argc - 1; i++) {
2059 char *srcpath, *last;
2061 WIN32_FIND_DATA fdat;
2063 if (colon(src) != NULL) {
2064 tell_user(stderr, "%s: Remote to remote not supported\n", src);
2070 * Trim off the last pathname component of `src', to
2071 * provide the base pathname which will be prepended to
2072 * filenames returned from Find{First,Next}File.
2074 srcpath = dupstr(src);
2075 last = stripslashes(srcpath, 1);
2078 dir = FindFirstFile(src, &fdat);
2079 if (dir == INVALID_HANDLE_VALUE) {
2080 run_err("%s: No such file or directory", src);
2086 * Ensure that . and .. are never matched by wildcards,
2087 * but only by deliberate action.
2089 if (!strcmp(fdat.cFileName, ".") ||
2090 !strcmp(fdat.cFileName, "..")) {
2092 * Find*File has returned a special dir. We require
2093 * that _either_ `src' ends in a backslash followed
2094 * by that string, _or_ `src' is precisely that
2097 int len = strlen(src), dlen = strlen(fdat.cFileName);
2098 if (len == dlen && !strcmp(src, fdat.cFileName)) {
2100 } else if (len > dlen + 1 && src[len - dlen - 1] == '\\' &&
2101 !strcmp(src + len - dlen, fdat.cFileName)) {
2104 continue; /* ignore this one */
2106 filename = dupcat(srcpath, fdat.cFileName, NULL);
2109 } while (FindNextFile(dir, &fdat));
2116 * We will copy files from a remote server to the local machine.
2118 static void tolocal(int argc, char *argv[])
2120 char *src, *targ, *host, *user;
2124 bump("More than one remote source not supported");
2129 /* Separate host from filename */
2133 bump("Local to local copy not supported");
2137 /* Substitute "." for empty filename */
2139 /* Separate username and hostname */
2141 host = strrchr(host, '@');
2151 cmd = dupprintf("scp%s%s%s%s -f %s",
2152 verbose ? " -v" : "",
2153 recursive ? " -r" : "",
2154 preserve ? " -p" : "",
2155 targetshouldbedirectory ? " -d" : "", src);
2156 do_cmd(host, user, cmd);
2159 if (scp_sink_setup(src, preserve, recursive))
2166 * We will issue a list command to get a remote directory.
2168 static void get_dir_list(int argc, char *argv[])
2170 char *src, *host, *user;
2176 /* Separate host from filename */
2180 bump("Local to local copy not supported");
2184 /* Substitute "." for empty filename */
2186 /* Separate username and hostname */
2188 host = strrchr(host, '@');
2198 cmd = snewn(4 * strlen(src) + 100, char);
2199 strcpy(cmd, "ls -la '");
2200 p = cmd + strlen(cmd);
2201 for (q = src; *q; q++) {
2214 do_cmd(host, user, cmd);
2218 scp_sftp_listdir(src);
2220 while (ssh_scp_recv(&c, 1) > 0)
2221 tell_char(stdout, c);
2226 * Initialize the Win$ock driver.
2228 static void init_winsock(void)
2233 winsock_ver = MAKEWORD(1, 1);
2234 if (WSAStartup(winsock_ver, &wsadata))
2235 bump("Unable to initialise WinSock");
2236 if (LOBYTE(wsadata.wVersion) != 1 || HIBYTE(wsadata.wVersion) != 1)
2237 bump("WinSock version is incompatible with 1.1");
2241 * Short description of parameters.
2243 static void usage(void)
2245 printf("PuTTY Secure Copy client\n");
2246 printf("%s\n", ver);
2247 printf("Usage: pscp [options] [user@]host:source target\n");
2249 (" pscp [options] source [source...] [user@]host:target\n");
2250 printf(" pscp [options] -ls user@host:filespec\n");
2251 printf("Options:\n");
2252 printf(" -p preserve file attributes\n");
2253 printf(" -q quiet, don't show statistics\n");
2254 printf(" -r copy directories recursively\n");
2255 printf(" -v show verbose messages\n");
2256 printf(" -load sessname Load settings from saved session\n");
2257 printf(" -P port connect to specified port\n");
2258 printf(" -l user connect with specified username\n");
2259 printf(" -pw passw login with specified password\n");
2260 printf(" -1 -2 force use of particular SSH protocol version\n");
2261 printf(" -C enable compression\n");
2262 printf(" -i key private key file for authentication\n");
2263 printf(" -batch disable all interactive prompts\n");
2264 printf(" -unsafe allow server-side wildcards (DANGEROUS)\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");
2279 void cmdline_error(char *p, ...)
2282 fprintf(stderr, "pscp: ");
2284 vfprintf(stderr, p, ap);
2286 fprintf(stderr, "\n try typing just \"pscp\" for help\n");
2291 * Main program (no, really?)
2293 int main(int argc, char *argv[])
2297 default_protocol = PROT_TELNET;
2299 flags = FLAG_STDERR | FLAG_SYNCAGENT;
2300 cmdline_tooltype = TOOLTYPE_FILETRANSFER;
2301 ssh_get_line = &console_get_line;
2305 for (i = 1; i < argc; i++) {
2307 if (argv[i][0] != '-')
2309 ret = cmdline_process_param(argv[i], i+1<argc?argv[i+1]:NULL, 1, &cfg);
2311 cmdline_error("option \"%s\" requires an argument", argv[i]);
2312 } else if (ret == 2) {
2313 i++; /* skip next argument */
2314 } else if (ret == 1) {
2315 /* We have our own verbosity in addition to `flags'. */
2316 if (flags & FLAG_VERBOSE)
2318 } else if (strcmp(argv[i], "-r") == 0) {
2320 } else if (strcmp(argv[i], "-p") == 0) {
2322 } else if (strcmp(argv[i], "-q") == 0) {
2324 } else if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "-?") == 0) {
2326 } else if (strcmp(argv[i], "-gui") == 0 && i + 1 < argc) {
2327 gui_hwnd = argv[++i];
2329 console_batch_mode = TRUE;
2330 } else if (strcmp(argv[i], "-ls") == 0) {
2332 } else if (strcmp(argv[i], "-batch") == 0) {
2333 console_batch_mode = 1;
2334 } else if (strcmp(argv[i], "-unsafe") == 0) {
2335 scp_unsafe_mode = 1;
2336 } else if (strcmp(argv[i], "--") == 0) {
2340 cmdline_error("unknown option \"%s\"", argv[i]);
2350 get_dir_list(argc, argv);
2357 targetshouldbedirectory = 1;
2359 if (colon(argv[argc - 1]) != NULL)
2360 toremote(argc, argv);
2362 tolocal(argc, argv);
2365 if (back != NULL && back->socket(backhandle) != NULL) {
2367 back->special(backhandle, TS_EOF);
2368 ssh_scp_recv(&ch, 1);
2373 /* GUI Adaptation - August 2000 */
2375 unsigned int msg_id = WM_RET_ERR_CNT;
2377 msg_id = WM_LS_RET_ERR_CNT;
2379 ((HWND) atoi(gui_hwnd), msg_id, (WPARAM) errs,
2380 0 /*lParam */ ))SleepEx(1000, TRUE);
2382 return (errs == 0 ? 0 : 1);