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);
441 * Print an error message and exit after closing the SSH link.
443 static void bump(char *fmt, ...)
448 str = dupvprintf(fmt, ap);
450 str2 = dupcat(str, "\n", NULL);
452 tell_str(stderr, str2);
456 if (back != NULL && back->socket(backhandle) != NULL) {
458 back->special(backhandle, TS_EOF);
459 ssh_scp_recv(&ch, 1);
463 unsigned int msg_id = WM_RET_ERR_CNT;
465 msg_id = WM_LS_RET_ERR_CNT;
467 ((HWND) atoi(gui_hwnd), msg_id, (WPARAM) errs,
468 0 /*lParam */ ))SleepEx(1000, TRUE);
475 * Open an SSH connection to user@host and execute cmd.
477 static void do_cmd(char *host, char *user, char *cmd)
479 char *err, *realhost;
482 if (host == NULL || host[0] == '\0')
483 bump("Empty host name");
485 /* Try to load settings for this host */
486 do_defaults(host, &cfg);
487 if (cfg.host[0] == '\0') {
488 /* No settings for this host; use defaults */
489 do_defaults(NULL, &cfg);
490 strncpy(cfg.host, host, sizeof(cfg.host) - 1);
491 cfg.host[sizeof(cfg.host) - 1] = '\0';
495 * Force use of SSH. (If they got the protocol wrong we assume the
496 * port is useless too.)
498 if (cfg.protocol != PROT_SSH) {
499 cfg.protocol = PROT_SSH;
504 * Enact command-line overrides.
506 cmdline_run_saved(&cfg);
509 * Trim leading whitespace off the hostname if it's there.
512 int space = strspn(cfg.host, " \t");
513 memmove(cfg.host, cfg.host+space, 1+strlen(cfg.host)-space);
516 /* See if host is of the form user@host */
517 if (cfg.host[0] != '\0') {
518 char *atsign = strchr(cfg.host, '@');
519 /* Make sure we're not overflowing the user field */
521 if (atsign - cfg.host < sizeof cfg.username) {
522 strncpy(cfg.username, cfg.host, atsign - cfg.host);
523 cfg.username[atsign - cfg.host] = '\0';
525 memmove(cfg.host, atsign + 1, 1 + strlen(atsign + 1));
530 * Trim a colon suffix off the hostname if it's there.
532 cfg.host[strcspn(cfg.host, ":")] = '\0';
535 * Remove any remaining whitespace from the hostname.
539 while (cfg.host[p2] != '\0') {
540 if (cfg.host[p2] != ' ' && cfg.host[p2] != '\t') {
541 cfg.host[p1] = cfg.host[p2];
550 if (user != NULL && user[0] != '\0') {
551 strncpy(cfg.username, user, sizeof(cfg.username) - 1);
552 cfg.username[sizeof(cfg.username) - 1] = '\0';
553 } else if (cfg.username[0] == '\0') {
555 if (GetUserName(user, &namelen) == FALSE)
556 bump("Empty user name");
557 user = snewn(namelen, char);
558 GetUserName(user, &namelen);
560 tell_user(stderr, "Guessing user name: %s", user);
561 strncpy(cfg.username, user, sizeof(cfg.username) - 1);
562 cfg.username[sizeof(cfg.username) - 1] = '\0';
567 * Disable scary things which shouldn't be enabled for simple
568 * things like SCP and SFTP: agent forwarding, port forwarding,
573 cfg.portfwd[0] = cfg.portfwd[1] = '\0';
576 * Attempt to start the SFTP subsystem as a first choice,
577 * falling back to the provided scp command if that fails.
579 strcpy(cfg.remote_cmd, "sftp");
580 cfg.ssh_subsys = TRUE;
581 cfg.remote_cmd_ptr2 = cmd;
582 cfg.ssh_subsys2 = FALSE;
587 err = back->init(NULL, &backhandle, &cfg, cfg.host, cfg.port, &realhost,0);
589 bump("ssh_init: %s", err);
590 logctx = log_init(NULL, &cfg);
591 back->provide_logctx(backhandle, logctx);
592 console_provide_logctx(logctx);
594 if (verbose && realhost != NULL)
595 tell_user(stderr, "Connected to %s\n", realhost);
600 * Update statistic information about current file.
602 static void print_stats(char *name, unsigned long size, unsigned long done,
603 time_t start, time_t now)
612 elap = (unsigned long) difftime(now, start);
615 ratebs = (float) done / elap;
617 ratebs = (float) done;
622 eta = (unsigned long) ((size - done) / ratebs);
623 sprintf(etastr, "%02ld:%02ld:%02ld",
624 eta / 3600, (eta % 3600) / 60, eta % 60);
626 pct = (int) (100 * (done * 1.0 / size));
629 /* GUI Adaptation - Sept 2000 */
630 gui_update_stats(name, size, pct, elap, done, eta,
631 (unsigned long) ratebs);
633 len = printf("\r%-25.25s | %10ld kB | %5.1f kB/s | ETA: %8s | %3d%%",
634 name, done / 1024, ratebs / 1024.0, etastr, pct);
635 if (len < prev_stats_len)
636 printf("%*s", prev_stats_len - len, "");
637 prev_stats_len = len;
645 * Find a colon in str and return a pointer to the colon.
646 * This is used to separate hostname from filename.
648 static char *colon(char *str)
650 /* We ignore a leading colon, since the hostname cannot be
651 empty. We also ignore a colon as second character because
652 of filenames like f:myfile.txt. */
653 if (str[0] == '\0' || str[0] == ':' || str[1] == ':')
655 while (*str != '\0' && *str != ':' && *str != '/' && *str != '\\')
664 * Return a pointer to the portion of str that comes after the last
665 * slash (or backslash or colon, if `local' is TRUE).
667 static char *stripslashes(char *str, int local)
672 p = strchr(str, ':');
676 p = strrchr(str, '/');
680 p = strrchr(str, '\\');
688 * Determine whether a string is entirely composed of dots.
690 static int is_dots(char *str)
692 return str[strspn(str, ".")] == '\0';
696 * Wait for a response from the other side.
697 * Return 0 if ok, -1 if error.
699 static int response(void)
701 char ch, resp, rbuf[2048];
704 if (ssh_scp_recv(&resp, 1) <= 0)
705 bump("Lost connection");
715 case 2: /* fatal error */
717 if (ssh_scp_recv(&ch, 1) <= 0)
718 bump("Protocol error: Lost connection");
720 } while (p < sizeof(rbuf) && ch != '\n');
723 tell_user(stderr, "%s\n", rbuf);
731 int sftp_recvdata(char *buf, int len)
733 return ssh_scp_recv(buf, len);
735 int sftp_senddata(char *buf, int len)
737 back->send(backhandle, (unsigned char *) buf, len);
741 /* ----------------------------------------------------------------------
742 * sftp-based replacement for the hacky `pscp -ls'.
744 static int sftp_ls_compare(const void *av, const void *bv)
746 const struct fxp_name *a = (const struct fxp_name *) av;
747 const struct fxp_name *b = (const struct fxp_name *) bv;
748 return strcmp(a->filename, b->filename);
750 void scp_sftp_listdir(char *dirname)
752 struct fxp_handle *dirh;
753 struct fxp_names *names;
754 struct fxp_name *ournames;
755 int nnames, namesize;
759 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
764 printf("Listing directory %s\n", dirname);
766 dirh = fxp_opendir(dirname);
768 printf("Unable to open %s: %s\n", dirname, fxp_error());
770 nnames = namesize = 0;
775 names = fxp_readdir(dirh);
777 if (fxp_error_type() == SSH_FX_EOF)
779 printf("Reading directory %s: %s\n", dirname, fxp_error());
782 if (names->nnames == 0) {
783 fxp_free_names(names);
787 if (nnames + names->nnames >= namesize) {
788 namesize += names->nnames + 128;
789 ournames = sresize(ournames, namesize, struct fxp_name);
792 for (i = 0; i < names->nnames; i++)
793 ournames[nnames++] = names->names[i];
795 names->nnames = 0; /* prevent free_names */
796 fxp_free_names(names);
801 * Now we have our filenames. Sort them by actual file
802 * name, and then output the longname parts.
804 qsort(ournames, nnames, sizeof(*ournames), sftp_ls_compare);
809 for (i = 0; i < nnames; i++)
810 printf("%s\n", ournames[i].longname);
814 /* ----------------------------------------------------------------------
815 * Helper routines that contain the actual SCP protocol elements,
816 * implemented both as SCP1 and SFTP.
819 static struct scp_sftp_dirstack {
820 struct scp_sftp_dirstack *next;
821 struct fxp_name *names;
822 int namepos, namelen;
825 int matched_something; /* wildcard match set was non-empty */
826 } *scp_sftp_dirstack_head;
827 static char *scp_sftp_remotepath, *scp_sftp_currentname;
828 static char *scp_sftp_wildcard;
829 static int scp_sftp_targetisdir, scp_sftp_donethistarget;
830 static int scp_sftp_preserve, scp_sftp_recursive;
831 static unsigned long scp_sftp_mtime, scp_sftp_atime;
832 static int scp_has_times;
833 static struct fxp_handle *scp_sftp_filehandle;
834 static uint64 scp_sftp_fileoffset;
836 void scp_source_setup(char *target, int shouldbedir)
840 * Find out whether the target filespec is in fact a
843 struct fxp_attrs attrs;
846 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
851 if (!fxp_stat(target, &attrs) ||
852 !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS))
853 scp_sftp_targetisdir = 0;
855 scp_sftp_targetisdir = (attrs.permissions & 0040000) != 0;
857 if (shouldbedir && !scp_sftp_targetisdir) {
858 bump("pscp: remote filespec %s: not a directory\n", target);
861 scp_sftp_remotepath = dupstr(target);
869 int scp_send_errmsg(char *str)
872 /* do nothing; we never need to send our errors to the server */
874 back->send(backhandle, "\001", 1);/* scp protocol error prefix */
875 back->send(backhandle, str, strlen(str));
877 return 0; /* can't fail */
880 int scp_send_filetimes(unsigned long mtime, unsigned long atime)
883 scp_sftp_mtime = mtime;
884 scp_sftp_atime = atime;
889 sprintf(buf, "T%lu 0 %lu 0\n", mtime, atime);
890 back->send(backhandle, buf, strlen(buf));
895 int scp_send_filename(char *name, unsigned long size, int modes)
899 if (scp_sftp_targetisdir) {
900 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
902 fullname = dupstr(scp_sftp_remotepath);
904 scp_sftp_filehandle =
905 fxp_open(fullname, SSH_FXF_WRITE | SSH_FXF_CREAT | SSH_FXF_TRUNC);
906 if (!scp_sftp_filehandle) {
907 tell_user(stderr, "pscp: unable to open %s: %s",
908 fullname, fxp_error());
912 scp_sftp_fileoffset = uint64_make(0, 0);
917 sprintf(buf, "C%04o %lu ", modes, size);
918 back->send(backhandle, buf, strlen(buf));
919 back->send(backhandle, name, strlen(name));
920 back->send(backhandle, "\n", 1);
925 int scp_send_filedata(char *data, int len)
928 if (!scp_sftp_filehandle) {
931 if (!fxp_write(scp_sftp_filehandle, data, scp_sftp_fileoffset, len)) {
932 tell_user(stderr, "error while writing: %s\n", fxp_error());
936 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, len);
939 int bufsize = back->send(backhandle, data, len);
942 * If the network transfer is backing up - that is, the
943 * remote site is not accepting data as fast as we can
944 * produce it - then we must loop on network events until
945 * we have space in the buffer again.
947 while (bufsize > MAX_SCP_BUFSIZE) {
948 if (!scp_process_network_event())
950 bufsize = back->sendbuffer(backhandle);
957 int scp_send_finish(void)
960 struct fxp_attrs attrs;
961 if (!scp_sftp_filehandle) {
965 attrs.flags = SSH_FILEXFER_ATTR_ACMODTIME;
966 attrs.atime = scp_sftp_atime;
967 attrs.mtime = scp_sftp_mtime;
968 if (!fxp_fsetstat(scp_sftp_filehandle, attrs)) {
969 tell_user(stderr, "unable to set file times: %s\n", fxp_error());
973 fxp_close(scp_sftp_filehandle);
977 back->send(backhandle, "", 1);
982 char *scp_save_remotepath(void)
985 return scp_sftp_remotepath;
990 void scp_restore_remotepath(char *data)
993 scp_sftp_remotepath = data;
996 int scp_send_dirname(char *name, int modes)
1001 struct fxp_attrs attrs;
1002 if (scp_sftp_targetisdir) {
1003 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
1005 fullname = dupstr(scp_sftp_remotepath);
1009 * We don't worry about whether we managed to create the
1010 * directory, because if it exists already it's OK just to
1011 * use it. Instead, we will stat it afterwards, and if it
1012 * exists and is a directory we will assume we were either
1013 * successful or it didn't matter.
1015 if (!fxp_mkdir(fullname))
1018 err = "server reported no error";
1019 if (!fxp_stat(fullname, &attrs) ||
1020 !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) ||
1021 !(attrs.permissions & 0040000)) {
1022 tell_user(stderr, "unable to create directory %s: %s",
1028 scp_sftp_remotepath = fullname;
1033 sprintf(buf, "D%04o 0 ", modes);
1034 back->send(backhandle, buf, strlen(buf));
1035 back->send(backhandle, name, strlen(name));
1036 back->send(backhandle, "\n", 1);
1041 int scp_send_enddir(void)
1044 sfree(scp_sftp_remotepath);
1047 back->send(backhandle, "E\n", 2);
1053 * Yes, I know; I have an scp_sink_setup _and_ an scp_sink_init.
1054 * That's bad. The difference is that scp_sink_setup is called once
1055 * right at the start, whereas scp_sink_init is called to
1056 * initialise every level of recursion in the protocol.
1058 int scp_sink_setup(char *source, int preserve, int recursive)
1064 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
1069 * It's possible that the source string we've been given
1070 * contains a wildcard. If so, we must split the directory
1071 * away from the wildcard itself (throwing an error if any
1072 * wildcardness comes before the final slash) and arrange
1073 * things so that a dirstack entry will be set up.
1075 newsource = snewn(1+strlen(source), char);
1076 if (!wc_unescape(newsource, source)) {
1077 /* Yes, here we go; it's a wildcard. Bah. */
1078 char *dupsource, *lastpart, *dirpart, *wildcard;
1079 dupsource = dupstr(source);
1080 lastpart = stripslashes(dupsource, 0);
1081 wildcard = dupstr(lastpart);
1083 if (*dupsource && dupsource[1]) {
1085 * The remains of dupsource are at least two
1086 * characters long, meaning the pathname wasn't
1087 * empty or just `/'. Hence, we remove the trailing
1090 lastpart[-1] = '\0';
1091 } else if (!*dupsource) {
1093 * The remains of dupsource are _empty_ - the whole
1094 * pathname was a wildcard. Hence we need to
1095 * replace it with ".".
1098 dupsource = dupstr(".");
1102 * Now we have separated our string into dupsource (the
1103 * directory part) and wildcard. Both of these will
1104 * need freeing at some point. Next step is to remove
1105 * wildcard escapes from the directory part, throwing
1106 * an error if it contains a real wildcard.
1108 dirpart = snewn(1+strlen(dupsource), char);
1109 if (!wc_unescape(dirpart, dupsource)) {
1110 tell_user(stderr, "%s: multiple-level wildcards unsupported",
1120 * Now we have dirpart (unescaped, ie a valid remote
1121 * path), and wildcard (a wildcard). This will be
1122 * sufficient to arrange a dirstack entry.
1124 scp_sftp_remotepath = dirpart;
1125 scp_sftp_wildcard = wildcard;
1128 scp_sftp_remotepath = newsource;
1129 scp_sftp_wildcard = NULL;
1131 scp_sftp_preserve = preserve;
1132 scp_sftp_recursive = recursive;
1133 scp_sftp_donethistarget = 0;
1134 scp_sftp_dirstack_head = NULL;
1139 int scp_sink_init(void)
1142 back->send(backhandle, "", 1);
1147 #define SCP_SINK_FILE 1
1148 #define SCP_SINK_DIR 2
1149 #define SCP_SINK_ENDDIR 3
1150 #define SCP_SINK_RETRY 4 /* not an action; just try again */
1151 struct scp_sink_action {
1152 int action; /* FILE, DIR, ENDDIR */
1153 char *buf; /* will need freeing after use */
1154 char *name; /* filename or dirname (not ENDDIR) */
1155 int mode; /* access mode (not ENDDIR) */
1156 unsigned long size; /* file size (not ENDDIR) */
1157 int settime; /* 1 if atime and mtime are filled */
1158 unsigned long atime, mtime; /* access times for the file */
1161 int scp_get_sink_action(struct scp_sink_action *act)
1165 int must_free_fname;
1166 struct fxp_attrs attrs;
1169 if (!scp_sftp_dirstack_head) {
1170 if (!scp_sftp_donethistarget) {
1172 * Simple case: we are only dealing with one file.
1174 fname = scp_sftp_remotepath;
1175 must_free_fname = 0;
1176 scp_sftp_donethistarget = 1;
1179 * Even simpler case: one file _which we've done_.
1180 * Return 1 (finished).
1186 * We're now in the middle of stepping through a list
1187 * of names returned from fxp_readdir(); so let's carry
1190 struct scp_sftp_dirstack *head = scp_sftp_dirstack_head;
1191 while (head->namepos < head->namelen &&
1192 (is_dots(head->names[head->namepos].filename) ||
1194 !wc_match(head->wildcard,
1195 head->names[head->namepos].filename))))
1196 head->namepos++; /* skip . and .. */
1197 if (head->namepos < head->namelen) {
1198 head->matched_something = 1;
1199 fname = dupcat(head->dirpath, "/",
1200 head->names[head->namepos++].filename,
1202 must_free_fname = 1;
1205 * We've come to the end of the list; pop it off
1206 * the stack and return an ENDDIR action (or RETRY
1207 * if this was a wildcard match).
1209 if (head->wildcard) {
1210 act->action = SCP_SINK_RETRY;
1211 if (!head->matched_something) {
1212 tell_user(stderr, "pscp: wildcard '%s' matched "
1213 "no files", head->wildcard);
1216 sfree(head->wildcard);
1219 act->action = SCP_SINK_ENDDIR;
1222 sfree(head->dirpath);
1224 scp_sftp_dirstack_head = head->next;
1232 * Now we have a filename. Stat it, and see if it's a file
1235 ret = fxp_stat(fname, &attrs);
1236 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS)) {
1237 tell_user(stderr, "unable to identify %s: %s", fname,
1238 ret ? "file type not supplied" : fxp_error());
1243 if (attrs.permissions & 0040000) {
1244 struct scp_sftp_dirstack *newitem;
1245 struct fxp_handle *dirhandle;
1246 int nnames, namesize;
1247 struct fxp_name *ournames;
1248 struct fxp_names *names;
1251 * It's a directory. If we're not in recursive mode,
1252 * this merits a complaint (which is fatal if the name
1253 * was specified directly, but not if it was matched by
1256 * We skip this complaint completely if
1257 * scp_sftp_wildcard is set, because that's an
1258 * indication that we're not actually supposed to
1259 * _recursively_ transfer the dir, just scan it for
1260 * things matching the wildcard.
1262 if (!scp_sftp_recursive && !scp_sftp_wildcard) {
1263 tell_user(stderr, "pscp: %s: is a directory", fname);
1265 if (must_free_fname) sfree(fname);
1266 if (scp_sftp_dirstack_head) {
1267 act->action = SCP_SINK_RETRY;
1275 * Otherwise, the fun begins. We must fxp_opendir() the
1276 * directory, slurp the filenames into memory, return
1277 * SCP_SINK_DIR (unless this is a wildcard match), and
1278 * set targetisdir. The next time we're called, we will
1279 * run through the list of filenames one by one,
1280 * matching them against a wildcard if present.
1282 * If targetisdir is _already_ set (meaning we're
1283 * already in the middle of going through another such
1284 * list), we must push the other (target,namelist) pair
1287 dirhandle = fxp_opendir(fname);
1289 tell_user(stderr, "scp: unable to open directory %s: %s",
1290 fname, fxp_error());
1291 if (must_free_fname) sfree(fname);
1295 nnames = namesize = 0;
1300 names = fxp_readdir(dirhandle);
1301 if (names == NULL) {
1302 if (fxp_error_type() == SSH_FX_EOF)
1304 tell_user(stderr, "scp: reading directory %s: %s\n",
1305 fname, fxp_error());
1306 if (must_free_fname) sfree(fname);
1311 if (names->nnames == 0) {
1312 fxp_free_names(names);
1315 if (nnames + names->nnames >= namesize) {
1316 namesize += names->nnames + 128;
1317 ournames = sresize(ournames, namesize, struct fxp_name);
1319 for (i = 0; i < names->nnames; i++)
1320 ournames[nnames++] = names->names[i];
1321 names->nnames = 0; /* prevent free_names */
1322 fxp_free_names(names);
1324 fxp_close(dirhandle);
1326 newitem = snew(struct scp_sftp_dirstack);
1327 newitem->next = scp_sftp_dirstack_head;
1328 newitem->names = ournames;
1329 newitem->namepos = 0;
1330 newitem->namelen = nnames;
1331 if (must_free_fname)
1332 newitem->dirpath = fname;
1334 newitem->dirpath = dupstr(fname);
1335 if (scp_sftp_wildcard) {
1336 newitem->wildcard = scp_sftp_wildcard;
1337 newitem->matched_something = 0;
1338 scp_sftp_wildcard = NULL;
1340 newitem->wildcard = NULL;
1342 scp_sftp_dirstack_head = newitem;
1344 if (newitem->wildcard) {
1345 act->action = SCP_SINK_RETRY;
1347 act->action = SCP_SINK_DIR;
1348 act->buf = dupstr(stripslashes(fname, 0));
1349 act->name = act->buf;
1350 act->size = 0; /* duhh, it's a directory */
1351 act->mode = 07777 & attrs.permissions;
1352 if (scp_sftp_preserve &&
1353 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1354 act->atime = attrs.atime;
1355 act->mtime = attrs.mtime;
1364 * It's a file. Return SCP_SINK_FILE.
1366 act->action = SCP_SINK_FILE;
1367 act->buf = dupstr(stripslashes(fname, 0));
1368 act->name = act->buf;
1369 if (attrs.flags & SSH_FILEXFER_ATTR_SIZE) {
1370 if (uint64_compare(attrs.size,
1371 uint64_make(0, ULONG_MAX)) > 0) {
1372 act->size = ULONG_MAX; /* *boggle* */
1374 act->size = attrs.size.lo;
1376 act->size = ULONG_MAX; /* no idea */
1377 act->mode = 07777 & attrs.permissions;
1378 if (scp_sftp_preserve &&
1379 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1380 act->atime = attrs.atime;
1381 act->mtime = attrs.mtime;
1385 if (must_free_fname)
1386 scp_sftp_currentname = fname;
1388 scp_sftp_currentname = dupstr(fname);
1403 if (ssh_scp_recv(&ch, 1) <= 0)
1406 bump("Protocol error: Unexpected newline");
1410 if (ssh_scp_recv(&ch, 1) <= 0)
1411 bump("Lost connection");
1414 act->buf = sresize(act->buf, bufsize, char);
1417 } while (ch != '\n');
1418 act->buf[i - 1] = '\0';
1420 case '\01': /* error */
1421 tell_user(stderr, "%s\n", act->buf);
1423 continue; /* go round again */
1424 case '\02': /* fatal error */
1425 bump("%s", act->buf);
1427 back->send(backhandle, "", 1);
1428 act->action = SCP_SINK_ENDDIR;
1431 if (sscanf(act->buf, "%ld %*d %ld %*d",
1432 &act->mtime, &act->atime) == 2) {
1434 back->send(backhandle, "", 1);
1435 continue; /* go round again */
1437 bump("Protocol error: Illegal time format");
1440 act->action = (action == 'C' ? SCP_SINK_FILE : SCP_SINK_DIR);
1443 bump("Protocol error: Expected control record");
1446 * We will go round this loop only once, unless we hit
1453 * If we get here, we must have seen SCP_SINK_FILE or
1456 if (sscanf(act->buf, "%o %lu %n", &act->mode, &act->size, &i) != 2)
1457 bump("Protocol error: Illegal file descriptor format");
1458 act->name = act->buf + i;
1463 int scp_accept_filexfer(void)
1466 scp_sftp_filehandle =
1467 fxp_open(scp_sftp_currentname, SSH_FXF_READ);
1468 if (!scp_sftp_filehandle) {
1469 tell_user(stderr, "pscp: unable to open %s: %s",
1470 scp_sftp_currentname, fxp_error());
1474 scp_sftp_fileoffset = uint64_make(0, 0);
1475 sfree(scp_sftp_currentname);
1478 back->send(backhandle, "", 1);
1479 return 0; /* can't fail */
1483 int scp_recv_filedata(char *data, int len)
1486 int actuallen = fxp_read(scp_sftp_filehandle, data,
1487 scp_sftp_fileoffset, len);
1488 if (actuallen == -1 && fxp_error_type() != SSH_FX_EOF) {
1489 tell_user(stderr, "pscp: error while reading: %s", fxp_error());
1496 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, actuallen);
1500 return ssh_scp_recv(data, len);
1504 int scp_finish_filerecv(void)
1507 fxp_close(scp_sftp_filehandle);
1510 back->send(backhandle, "", 1);
1515 /* ----------------------------------------------------------------------
1516 * Send an error message to the other side and to the screen.
1517 * Increment error counter.
1519 static void run_err(const char *fmt, ...)
1525 str = dupvprintf(fmt, ap);
1526 str2 = dupcat("scp: ", str, "\n", NULL);
1528 scp_send_errmsg(str2);
1529 tell_user(stderr, "%s", str2);
1535 * Execute the source part of the SCP protocol.
1537 static void source(char *src)
1544 unsigned long stat_bytes;
1545 time_t stat_starttime, stat_lasttime;
1547 attr = GetFileAttributes(src);
1548 if (attr == (DWORD) - 1) {
1549 run_err("%s: No such file or directory", src);
1553 if ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0) {
1556 * Avoid . and .. directories.
1559 p = strrchr(src, '/');
1561 p = strrchr(src, '\\');
1566 if (!strcmp(p, ".") || !strcmp(p, ".."))
1567 /* skip . and .. */ ;
1571 run_err("%s: not a regular file", src);
1576 if ((last = strrchr(src, '/')) == NULL)
1580 if (strrchr(last, '\\') != NULL)
1581 last = strrchr(last, '\\') + 1;
1582 if (last == src && strchr(src, ':') != NULL)
1583 last = strchr(src, ':') + 1;
1585 f = CreateFile(src, GENERIC_READ, FILE_SHARE_READ, NULL,
1586 OPEN_EXISTING, 0, 0);
1587 if (f == INVALID_HANDLE_VALUE) {
1588 run_err("%s: Cannot open file", src);
1593 FILETIME actime, wrtime;
1594 unsigned long mtime, atime;
1595 GetFileTime(f, NULL, &actime, &wrtime);
1596 TIME_WIN_TO_POSIX(actime, atime);
1597 TIME_WIN_TO_POSIX(wrtime, mtime);
1598 if (scp_send_filetimes(mtime, atime))
1602 size = GetFileSize(f, NULL);
1604 tell_user(stderr, "Sending file %s, size=%lu", last, size);
1605 if (scp_send_filename(last, size, 0644))
1609 stat_starttime = time(NULL);
1612 for (i = 0; i < size; i += 4096) {
1613 char transbuf[4096];
1618 if (!ReadFile(f, transbuf, k, &j, NULL) || j != k) {
1621 bump("%s: Read error", src);
1623 if (scp_send_filedata(transbuf, k))
1624 bump("%s: Network error occurred", src);
1628 if (time(NULL) != stat_lasttime || i + k == size) {
1629 stat_lasttime = time(NULL);
1630 print_stats(last, size, stat_bytes,
1631 stat_starttime, stat_lasttime);
1638 (void) scp_send_finish();
1642 * Recursively send the contents of a directory.
1644 static void rsource(char *src)
1646 char *last, *findfile;
1649 WIN32_FIND_DATA fdat;
1652 if ((last = strrchr(src, '/')) == NULL)
1656 if (strrchr(last, '\\') != NULL)
1657 last = strrchr(last, '\\') + 1;
1658 if (last == src && strchr(src, ':') != NULL)
1659 last = strchr(src, ':') + 1;
1661 /* maybe send filetime */
1663 save_target = scp_save_remotepath();
1666 tell_user(stderr, "Entering directory: %s", last);
1667 if (scp_send_dirname(last, 0755))
1670 findfile = dupcat(src, "/*", NULL);
1671 dir = FindFirstFile(findfile, &fdat);
1672 ok = (dir != INVALID_HANDLE_VALUE);
1674 if (strcmp(fdat.cFileName, ".") == 0 ||
1675 strcmp(fdat.cFileName, "..") == 0) {
1676 /* ignore . and .. */
1678 char *foundfile = dupcat(src, "/", fdat.cFileName, NULL);
1682 ok = FindNextFile(dir, &fdat);
1687 (void) scp_send_enddir();
1689 scp_restore_remotepath(save_target);
1693 * Execute the sink part of the SCP protocol.
1695 static void sink(char *targ, char *src)
1702 unsigned long received;
1704 unsigned long stat_bytes;
1705 time_t stat_starttime, stat_lasttime;
1708 attr = GetFileAttributes(targ);
1709 if (attr != (DWORD) - 1 && (attr & FILE_ATTRIBUTE_DIRECTORY) != 0)
1712 if (targetshouldbedirectory && !targisdir)
1713 bump("%s: Not a directory", targ);
1717 struct scp_sink_action act;
1718 if (scp_get_sink_action(&act))
1721 if (act.action == SCP_SINK_ENDDIR)
1724 if (act.action == SCP_SINK_RETRY)
1729 * Prevent the remote side from maliciously writing to
1730 * files outside the target area by sending a filename
1731 * containing `../'. In fact, it shouldn't be sending
1732 * filenames with any slashes or colons in at all; so
1733 * we'll find the last slash, backslash or colon in the
1734 * filename and use only the part after that. (And
1737 * In addition, we also ensure here that if we're
1738 * copying a single file and the target is a directory
1739 * (common usage: `pscp host:filename .') the remote
1740 * can't send us a _different_ file name. We can
1741 * distinguish this case because `src' will be non-NULL
1742 * and the last component of that will fail to match
1743 * (the last component of) the name sent.
1745 * Well, not always; if `src' is a wildcard, we do
1746 * expect to get back filenames that don't correspond
1747 * exactly to it. Ideally in this case, we would like
1748 * to ensure that the returned filename actually
1749 * matches the wildcard pattern - but one of SCP's
1750 * protocol infelicities is that wildcard matching is
1751 * done at the server end _by the server's rules_ and
1752 * so in general this is infeasible. Hence, we only
1753 * accept filenames that don't correspond to `src' if
1754 * unsafe mode is enabled or we are using SFTP (which
1755 * resolves remote wildcards on the client side and can
1758 char *striptarget, *stripsrc;
1760 striptarget = stripslashes(act.name, 1);
1761 if (striptarget != act.name) {
1762 tell_user(stderr, "warning: remote host sent a compound"
1763 " pathname '%s'", act.name);
1764 tell_user(stderr, " renaming local file to '%s'",
1769 * Also check to see if the target filename is '.' or
1770 * '..', or indeed '...' and so on because Windows
1771 * appears to interpret those like '..'.
1773 if (is_dots(striptarget)) {
1774 bump("security violation: remote host attempted to write to"
1775 " a '.' or '..' path!");
1779 stripsrc = stripslashes(src, 1);
1780 if (strcmp(striptarget, stripsrc) &&
1781 !using_sftp && !scp_unsafe_mode) {
1782 tell_user(stderr, "warning: remote host tried to write "
1783 "to a file called '%s'", striptarget);
1784 tell_user(stderr, " when we requested a file "
1785 "called '%s'.", stripsrc);
1786 tell_user(stderr, " If this is a wildcard, "
1787 "consider upgrading to SSH 2 or using");
1788 tell_user(stderr, " the '-unsafe' option. Renaming"
1789 " of this file has been disallowed.");
1790 /* Override the name the server provided with our own. */
1791 striptarget = stripsrc;
1795 if (targ[0] != '\0')
1796 destfname = dupcat(targ, "\\", striptarget, NULL);
1798 destfname = dupstr(striptarget);
1801 * In this branch of the if, the target area is a
1802 * single file with an explicitly specified name in any
1803 * case, so there's no danger.
1805 destfname = dupstr(targ);
1807 attr = GetFileAttributes(destfname);
1808 exists = (attr != (DWORD) - 1);
1810 if (act.action == SCP_SINK_DIR) {
1811 if (exists && (attr & FILE_ATTRIBUTE_DIRECTORY) == 0) {
1812 run_err("%s: Not a directory", destfname);
1816 if (!CreateDirectory(destfname, NULL)) {
1817 run_err("%s: Cannot create directory", destfname);
1821 sink(destfname, NULL);
1822 /* can we set the timestamp for directories ? */
1826 f = CreateFile(destfname, GENERIC_WRITE, 0, NULL,
1827 CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
1828 if (f == INVALID_HANDLE_VALUE) {
1829 run_err("%s: Cannot create file", destfname);
1833 if (scp_accept_filexfer())
1837 stat_starttime = time(NULL);
1839 stat_name = stripslashes(destfname, 1);
1842 while (received < act.size) {
1843 char transbuf[4096];
1844 DWORD blksize, read, written;
1846 if (blksize > act.size - received)
1847 blksize = act.size - received;
1848 read = scp_recv_filedata(transbuf, blksize);
1850 bump("Lost connection");
1853 if (!WriteFile(f, transbuf, read, &written, NULL) ||
1856 /* FIXME: in sftp we can actually abort the transfer */
1858 printf("\r%-25.25s | %50s\n",
1860 "Write error.. waiting for end of file");
1865 if (time(NULL) > stat_lasttime ||
1866 received + read == act.size) {
1867 stat_lasttime = time(NULL);
1868 print_stats(stat_name, act.size, stat_bytes,
1869 stat_starttime, stat_lasttime);
1875 FILETIME actime, wrtime;
1876 TIME_POSIX_TO_WIN(act.atime, actime);
1877 TIME_POSIX_TO_WIN(act.mtime, wrtime);
1878 SetFileTime(f, NULL, &actime, &wrtime);
1883 run_err("%s: Write error", destfname);
1886 (void) scp_finish_filerecv();
1893 * We will copy local files to a remote server.
1895 static void toremote(int argc, char *argv[])
1897 char *src, *targ, *host, *user;
1901 targ = argv[argc - 1];
1903 /* Separate host from filename */
1907 bump("targ == NULL in toremote()");
1911 /* Substitute "." for emtpy target */
1913 /* Separate host and username */
1915 host = strrchr(host, '@');
1926 /* Find out if the source filespec covers multiple files
1927 if so, we should set the targetshouldbedirectory flag */
1929 WIN32_FIND_DATA fdat;
1930 if (colon(argv[0]) != NULL)
1931 bump("%s: Remote to remote not supported", argv[0]);
1932 fh = FindFirstFile(argv[0], &fdat);
1933 if (fh == INVALID_HANDLE_VALUE)
1934 bump("%s: No such file or directory\n", argv[0]);
1935 if (FindNextFile(fh, &fdat))
1936 targetshouldbedirectory = 1;
1940 cmd = dupprintf("scp%s%s%s%s -t %s",
1941 verbose ? " -v" : "",
1942 recursive ? " -r" : "",
1943 preserve ? " -p" : "",
1944 targetshouldbedirectory ? " -d" : "", targ);
1945 do_cmd(host, user, cmd);
1948 scp_source_setup(targ, targetshouldbedirectory);
1950 for (i = 0; i < argc - 1; i++) {
1951 char *srcpath, *last;
1953 WIN32_FIND_DATA fdat;
1955 if (colon(src) != NULL) {
1956 tell_user(stderr, "%s: Remote to remote not supported\n", src);
1962 * Trim off the last pathname component of `src', to
1963 * provide the base pathname which will be prepended to
1964 * filenames returned from Find{First,Next}File.
1966 srcpath = dupstr(src);
1967 last = stripslashes(srcpath, 1);
1970 dir = FindFirstFile(src, &fdat);
1971 if (dir == INVALID_HANDLE_VALUE) {
1972 run_err("%s: No such file or directory", src);
1978 * Ensure that . and .. are never matched by wildcards,
1979 * but only by deliberate action.
1981 if (!strcmp(fdat.cFileName, ".") ||
1982 !strcmp(fdat.cFileName, "..")) {
1984 * Find*File has returned a special dir. We require
1985 * that _either_ `src' ends in a backslash followed
1986 * by that string, _or_ `src' is precisely that
1989 int len = strlen(src), dlen = strlen(fdat.cFileName);
1990 if (len == dlen && !strcmp(src, fdat.cFileName)) {
1992 } else if (len > dlen + 1 && src[len - dlen - 1] == '\\' &&
1993 !strcmp(src + len - dlen, fdat.cFileName)) {
1996 continue; /* ignore this one */
1998 filename = dupcat(srcpath, fdat.cFileName, NULL);
2001 } while (FindNextFile(dir, &fdat));
2008 * We will copy files from a remote server to the local machine.
2010 static void tolocal(int argc, char *argv[])
2012 char *src, *targ, *host, *user;
2016 bump("More than one remote source not supported");
2021 /* Separate host from filename */
2025 bump("Local to local copy not supported");
2029 /* Substitute "." for empty filename */
2031 /* Separate username and hostname */
2033 host = strrchr(host, '@');
2043 cmd = dupprintf("scp%s%s%s%s -f %s",
2044 verbose ? " -v" : "",
2045 recursive ? " -r" : "",
2046 preserve ? " -p" : "",
2047 targetshouldbedirectory ? " -d" : "", src);
2048 do_cmd(host, user, cmd);
2051 if (scp_sink_setup(src, preserve, recursive))
2058 * We will issue a list command to get a remote directory.
2060 static void get_dir_list(int argc, char *argv[])
2062 char *src, *host, *user;
2068 /* Separate host from filename */
2072 bump("Local to local copy not supported");
2076 /* Substitute "." for empty filename */
2078 /* Separate username and hostname */
2080 host = strrchr(host, '@');
2090 cmd = snewn(4 * strlen(src) + 100, char);
2091 strcpy(cmd, "ls -la '");
2092 p = cmd + strlen(cmd);
2093 for (q = src; *q; q++) {
2106 do_cmd(host, user, cmd);
2110 scp_sftp_listdir(src);
2112 while (ssh_scp_recv(&c, 1) > 0)
2113 tell_char(stdout, c);
2118 * Initialize the Win$ock driver.
2120 static void init_winsock(void)
2125 winsock_ver = MAKEWORD(1, 1);
2126 if (WSAStartup(winsock_ver, &wsadata))
2127 bump("Unable to initialise WinSock");
2128 if (LOBYTE(wsadata.wVersion) != 1 || HIBYTE(wsadata.wVersion) != 1)
2129 bump("WinSock version is incompatible with 1.1");
2133 * Short description of parameters.
2135 static void usage(void)
2137 printf("PuTTY Secure Copy client\n");
2138 printf("%s\n", ver);
2139 printf("Usage: pscp [options] [user@]host:source target\n");
2141 (" pscp [options] source [source...] [user@]host:target\n");
2142 printf(" pscp [options] -ls user@host:filespec\n");
2143 printf("Options:\n");
2144 printf(" -p preserve file attributes\n");
2145 printf(" -q quiet, don't show statistics\n");
2146 printf(" -r copy directories recursively\n");
2147 printf(" -v show verbose messages\n");
2148 printf(" -load sessname Load settings from saved session\n");
2149 printf(" -P port connect to specified port\n");
2150 printf(" -l user connect with specified username\n");
2151 printf(" -pw passw login with specified password\n");
2152 printf(" -1 -2 force use of particular SSH protocol version\n");
2153 printf(" -C enable compression\n");
2154 printf(" -i key private key file for authentication\n");
2155 printf(" -batch disable all interactive prompts\n");
2156 printf(" -unsafe allow server-side wildcards (DANGEROUS)\n");
2159 * -gui is an internal option, used by GUI front ends to get
2160 * pscp to pass progress reports back to them. It's not an
2161 * ordinary user-accessible option, so it shouldn't be part of
2162 * the command-line help. The only people who need to know
2163 * about it are programmers, and they can read the source.
2166 (" -gui hWnd GUI mode with the windows handle for receiving messages\n");
2171 void cmdline_error(char *p, ...)
2174 fprintf(stderr, "pscp: ");
2176 vfprintf(stderr, p, ap);
2178 fprintf(stderr, "\n try typing just \"pscp\" for help\n");
2183 * Main program (no, really?)
2185 int main(int argc, char *argv[])
2189 default_protocol = PROT_TELNET;
2191 flags = FLAG_STDERR | FLAG_SYNCAGENT;
2192 cmdline_tooltype = TOOLTYPE_FILETRANSFER;
2193 ssh_get_line = &console_get_line;
2197 for (i = 1; i < argc; i++) {
2199 if (argv[i][0] != '-')
2201 ret = cmdline_process_param(argv[i], i+1<argc?argv[i+1]:NULL, 1, &cfg);
2203 cmdline_error("option \"%s\" requires an argument", argv[i]);
2204 } else if (ret == 2) {
2205 i++; /* skip next argument */
2206 } else if (ret == 1) {
2207 /* We have our own verbosity in addition to `flags'. */
2208 if (flags & FLAG_VERBOSE)
2210 } else if (strcmp(argv[i], "-r") == 0) {
2212 } else if (strcmp(argv[i], "-p") == 0) {
2214 } else if (strcmp(argv[i], "-q") == 0) {
2216 } else if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "-?") == 0) {
2218 } else if (strcmp(argv[i], "-gui") == 0 && i + 1 < argc) {
2219 gui_hwnd = argv[++i];
2221 console_batch_mode = TRUE;
2222 } else if (strcmp(argv[i], "-ls") == 0) {
2224 } else if (strcmp(argv[i], "-batch") == 0) {
2225 console_batch_mode = 1;
2226 } else if (strcmp(argv[i], "-unsafe") == 0) {
2227 scp_unsafe_mode = 1;
2228 } else if (strcmp(argv[i], "--") == 0) {
2232 cmdline_error("unknown option \"%s\"", argv[i]);
2242 get_dir_list(argc, argv);
2249 targetshouldbedirectory = 1;
2251 if (colon(argv[argc - 1]) != NULL)
2252 toremote(argc, argv);
2254 tolocal(argc, argv);
2257 if (back != NULL && back->socket(backhandle) != NULL) {
2259 back->special(backhandle, TS_EOF);
2260 ssh_scp_recv(&ch, 1);
2265 /* GUI Adaptation - August 2000 */
2267 unsigned int msg_id = WM_RET_ERR_CNT;
2269 msg_id = WM_LS_RET_ERR_CNT;
2271 ((HWND) atoi(gui_hwnd), msg_id, (WPARAM) errs,
2272 0 /*lParam */ ))SleepEx(1000, TRUE);
2274 return (errs == 0 ? 0 : 1);