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 int nnames, namesize;
766 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
771 printf("Listing directory %s\n", dirname);
773 dirh = fxp_opendir(dirname);
775 printf("Unable to open %s: %s\n", dirname, fxp_error());
777 nnames = namesize = 0;
782 names = fxp_readdir(dirh);
784 if (fxp_error_type() == SSH_FX_EOF)
786 printf("Reading directory %s: %s\n", dirname, fxp_error());
789 if (names->nnames == 0) {
790 fxp_free_names(names);
794 if (nnames + names->nnames >= namesize) {
795 namesize += names->nnames + 128;
796 ournames = sresize(ournames, namesize, struct fxp_name);
799 for (i = 0; i < names->nnames; i++)
800 ournames[nnames++] = names->names[i];
802 names->nnames = 0; /* prevent free_names */
803 fxp_free_names(names);
808 * Now we have our filenames. Sort them by actual file
809 * name, and then output the longname parts.
811 qsort(ournames, nnames, sizeof(*ournames), sftp_ls_compare);
816 for (i = 0; i < nnames; i++)
817 printf("%s\n", ournames[i].longname);
821 /* ----------------------------------------------------------------------
822 * Helper routines that contain the actual SCP protocol elements,
823 * implemented both as SCP1 and SFTP.
826 static struct scp_sftp_dirstack {
827 struct scp_sftp_dirstack *next;
828 struct fxp_name *names;
829 int namepos, namelen;
832 int matched_something; /* wildcard match set was non-empty */
833 } *scp_sftp_dirstack_head;
834 static char *scp_sftp_remotepath, *scp_sftp_currentname;
835 static char *scp_sftp_wildcard;
836 static int scp_sftp_targetisdir, scp_sftp_donethistarget;
837 static int scp_sftp_preserve, scp_sftp_recursive;
838 static unsigned long scp_sftp_mtime, scp_sftp_atime;
839 static int scp_has_times;
840 static struct fxp_handle *scp_sftp_filehandle;
841 static uint64 scp_sftp_fileoffset;
843 void scp_source_setup(char *target, int shouldbedir)
847 * Find out whether the target filespec is in fact a
850 struct fxp_attrs attrs;
853 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
858 if (!fxp_stat(target, &attrs) ||
859 !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS))
860 scp_sftp_targetisdir = 0;
862 scp_sftp_targetisdir = (attrs.permissions & 0040000) != 0;
864 if (shouldbedir && !scp_sftp_targetisdir) {
865 bump("pscp: remote filespec %s: not a directory\n", target);
868 scp_sftp_remotepath = dupstr(target);
876 int scp_send_errmsg(char *str)
879 /* do nothing; we never need to send our errors to the server */
881 back->send(backhandle, "\001", 1);/* scp protocol error prefix */
882 back->send(backhandle, str, strlen(str));
884 return 0; /* can't fail */
887 int scp_send_filetimes(unsigned long mtime, unsigned long atime)
890 scp_sftp_mtime = mtime;
891 scp_sftp_atime = atime;
896 sprintf(buf, "T%lu 0 %lu 0\n", mtime, atime);
897 back->send(backhandle, buf, strlen(buf));
902 int scp_send_filename(char *name, unsigned long size, int modes)
906 if (scp_sftp_targetisdir) {
907 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
909 fullname = dupstr(scp_sftp_remotepath);
911 scp_sftp_filehandle =
912 fxp_open(fullname, SSH_FXF_WRITE | SSH_FXF_CREAT | SSH_FXF_TRUNC);
913 if (!scp_sftp_filehandle) {
914 tell_user(stderr, "pscp: unable to open %s: %s",
915 fullname, fxp_error());
919 scp_sftp_fileoffset = uint64_make(0, 0);
924 sprintf(buf, "C%04o %lu ", modes, size);
925 back->send(backhandle, buf, strlen(buf));
926 back->send(backhandle, name, strlen(name));
927 back->send(backhandle, "\n", 1);
932 int scp_send_filedata(char *data, int len)
935 if (!scp_sftp_filehandle) {
938 if (!fxp_write(scp_sftp_filehandle, data, scp_sftp_fileoffset, len)) {
939 tell_user(stderr, "error while writing: %s\n", fxp_error());
943 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, len);
946 int bufsize = back->send(backhandle, data, len);
949 * If the network transfer is backing up - that is, the
950 * remote site is not accepting data as fast as we can
951 * produce it - then we must loop on network events until
952 * we have space in the buffer again.
954 while (bufsize > MAX_SCP_BUFSIZE) {
955 if (!scp_process_network_event())
957 bufsize = back->sendbuffer(backhandle);
964 int scp_send_finish(void)
967 struct fxp_attrs attrs;
968 if (!scp_sftp_filehandle) {
972 attrs.flags = SSH_FILEXFER_ATTR_ACMODTIME;
973 attrs.atime = scp_sftp_atime;
974 attrs.mtime = scp_sftp_mtime;
975 if (!fxp_fsetstat(scp_sftp_filehandle, attrs)) {
976 tell_user(stderr, "unable to set file times: %s\n", fxp_error());
980 fxp_close(scp_sftp_filehandle);
984 back->send(backhandle, "", 1);
989 char *scp_save_remotepath(void)
992 return scp_sftp_remotepath;
997 void scp_restore_remotepath(char *data)
1000 scp_sftp_remotepath = data;
1003 int scp_send_dirname(char *name, int modes)
1008 struct fxp_attrs attrs;
1009 if (scp_sftp_targetisdir) {
1010 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
1012 fullname = dupstr(scp_sftp_remotepath);
1016 * We don't worry about whether we managed to create the
1017 * directory, because if it exists already it's OK just to
1018 * use it. Instead, we will stat it afterwards, and if it
1019 * exists and is a directory we will assume we were either
1020 * successful or it didn't matter.
1022 if (!fxp_mkdir(fullname))
1025 err = "server reported no error";
1026 if (!fxp_stat(fullname, &attrs) ||
1027 !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) ||
1028 !(attrs.permissions & 0040000)) {
1029 tell_user(stderr, "unable to create directory %s: %s",
1035 scp_sftp_remotepath = fullname;
1040 sprintf(buf, "D%04o 0 ", modes);
1041 back->send(backhandle, buf, strlen(buf));
1042 back->send(backhandle, name, strlen(name));
1043 back->send(backhandle, "\n", 1);
1048 int scp_send_enddir(void)
1051 sfree(scp_sftp_remotepath);
1054 back->send(backhandle, "E\n", 2);
1060 * Yes, I know; I have an scp_sink_setup _and_ an scp_sink_init.
1061 * That's bad. The difference is that scp_sink_setup is called once
1062 * right at the start, whereas scp_sink_init is called to
1063 * initialise every level of recursion in the protocol.
1065 int scp_sink_setup(char *source, int preserve, int recursive)
1071 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
1076 * It's possible that the source string we've been given
1077 * contains a wildcard. If so, we must split the directory
1078 * away from the wildcard itself (throwing an error if any
1079 * wildcardness comes before the final slash) and arrange
1080 * things so that a dirstack entry will be set up.
1082 newsource = snewn(1+strlen(source), char);
1083 if (!wc_unescape(newsource, source)) {
1084 /* Yes, here we go; it's a wildcard. Bah. */
1085 char *dupsource, *lastpart, *dirpart, *wildcard;
1086 dupsource = dupstr(source);
1087 lastpart = stripslashes(dupsource, 0);
1088 wildcard = dupstr(lastpart);
1090 if (*dupsource && dupsource[1]) {
1092 * The remains of dupsource are at least two
1093 * characters long, meaning the pathname wasn't
1094 * empty or just `/'. Hence, we remove the trailing
1097 lastpart[-1] = '\0';
1098 } else if (!*dupsource) {
1100 * The remains of dupsource are _empty_ - the whole
1101 * pathname was a wildcard. Hence we need to
1102 * replace it with ".".
1105 dupsource = dupstr(".");
1109 * Now we have separated our string into dupsource (the
1110 * directory part) and wildcard. Both of these will
1111 * need freeing at some point. Next step is to remove
1112 * wildcard escapes from the directory part, throwing
1113 * an error if it contains a real wildcard.
1115 dirpart = snewn(1+strlen(dupsource), char);
1116 if (!wc_unescape(dirpart, dupsource)) {
1117 tell_user(stderr, "%s: multiple-level wildcards unsupported",
1127 * Now we have dirpart (unescaped, ie a valid remote
1128 * path), and wildcard (a wildcard). This will be
1129 * sufficient to arrange a dirstack entry.
1131 scp_sftp_remotepath = dirpart;
1132 scp_sftp_wildcard = wildcard;
1135 scp_sftp_remotepath = newsource;
1136 scp_sftp_wildcard = NULL;
1138 scp_sftp_preserve = preserve;
1139 scp_sftp_recursive = recursive;
1140 scp_sftp_donethistarget = 0;
1141 scp_sftp_dirstack_head = NULL;
1146 int scp_sink_init(void)
1149 back->send(backhandle, "", 1);
1154 #define SCP_SINK_FILE 1
1155 #define SCP_SINK_DIR 2
1156 #define SCP_SINK_ENDDIR 3
1157 #define SCP_SINK_RETRY 4 /* not an action; just try again */
1158 struct scp_sink_action {
1159 int action; /* FILE, DIR, ENDDIR */
1160 char *buf; /* will need freeing after use */
1161 char *name; /* filename or dirname (not ENDDIR) */
1162 int mode; /* access mode (not ENDDIR) */
1163 unsigned long size; /* file size (not ENDDIR) */
1164 int settime; /* 1 if atime and mtime are filled */
1165 unsigned long atime, mtime; /* access times for the file */
1168 int scp_get_sink_action(struct scp_sink_action *act)
1172 int must_free_fname;
1173 struct fxp_attrs attrs;
1176 if (!scp_sftp_dirstack_head) {
1177 if (!scp_sftp_donethistarget) {
1179 * Simple case: we are only dealing with one file.
1181 fname = scp_sftp_remotepath;
1182 must_free_fname = 0;
1183 scp_sftp_donethistarget = 1;
1186 * Even simpler case: one file _which we've done_.
1187 * Return 1 (finished).
1193 * We're now in the middle of stepping through a list
1194 * of names returned from fxp_readdir(); so let's carry
1197 struct scp_sftp_dirstack *head = scp_sftp_dirstack_head;
1198 while (head->namepos < head->namelen &&
1199 (is_dots(head->names[head->namepos].filename) ||
1201 !wc_match(head->wildcard,
1202 head->names[head->namepos].filename))))
1203 head->namepos++; /* skip . and .. */
1204 if (head->namepos < head->namelen) {
1205 head->matched_something = 1;
1206 fname = dupcat(head->dirpath, "/",
1207 head->names[head->namepos++].filename,
1209 must_free_fname = 1;
1212 * We've come to the end of the list; pop it off
1213 * the stack and return an ENDDIR action (or RETRY
1214 * if this was a wildcard match).
1216 if (head->wildcard) {
1217 act->action = SCP_SINK_RETRY;
1218 if (!head->matched_something) {
1219 tell_user(stderr, "pscp: wildcard '%s' matched "
1220 "no files", head->wildcard);
1223 sfree(head->wildcard);
1226 act->action = SCP_SINK_ENDDIR;
1229 sfree(head->dirpath);
1231 scp_sftp_dirstack_head = head->next;
1239 * Now we have a filename. Stat it, and see if it's a file
1242 ret = fxp_stat(fname, &attrs);
1243 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS)) {
1244 tell_user(stderr, "unable to identify %s: %s", fname,
1245 ret ? "file type not supplied" : fxp_error());
1250 if (attrs.permissions & 0040000) {
1251 struct scp_sftp_dirstack *newitem;
1252 struct fxp_handle *dirhandle;
1253 int nnames, namesize;
1254 struct fxp_name *ournames;
1255 struct fxp_names *names;
1258 * It's a directory. If we're not in recursive mode,
1259 * this merits a complaint (which is fatal if the name
1260 * was specified directly, but not if it was matched by
1263 * We skip this complaint completely if
1264 * scp_sftp_wildcard is set, because that's an
1265 * indication that we're not actually supposed to
1266 * _recursively_ transfer the dir, just scan it for
1267 * things matching the wildcard.
1269 if (!scp_sftp_recursive && !scp_sftp_wildcard) {
1270 tell_user(stderr, "pscp: %s: is a directory", fname);
1272 if (must_free_fname) sfree(fname);
1273 if (scp_sftp_dirstack_head) {
1274 act->action = SCP_SINK_RETRY;
1282 * Otherwise, the fun begins. We must fxp_opendir() the
1283 * directory, slurp the filenames into memory, return
1284 * SCP_SINK_DIR (unless this is a wildcard match), and
1285 * set targetisdir. The next time we're called, we will
1286 * run through the list of filenames one by one,
1287 * matching them against a wildcard if present.
1289 * If targetisdir is _already_ set (meaning we're
1290 * already in the middle of going through another such
1291 * list), we must push the other (target,namelist) pair
1294 dirhandle = fxp_opendir(fname);
1296 tell_user(stderr, "scp: unable to open directory %s: %s",
1297 fname, fxp_error());
1298 if (must_free_fname) sfree(fname);
1302 nnames = namesize = 0;
1307 names = fxp_readdir(dirhandle);
1308 if (names == NULL) {
1309 if (fxp_error_type() == SSH_FX_EOF)
1311 tell_user(stderr, "scp: reading directory %s: %s\n",
1312 fname, fxp_error());
1313 if (must_free_fname) sfree(fname);
1318 if (names->nnames == 0) {
1319 fxp_free_names(names);
1322 if (nnames + names->nnames >= namesize) {
1323 namesize += names->nnames + 128;
1324 ournames = sresize(ournames, namesize, struct fxp_name);
1326 for (i = 0; i < names->nnames; i++)
1327 ournames[nnames++] = names->names[i];
1328 names->nnames = 0; /* prevent free_names */
1329 fxp_free_names(names);
1331 fxp_close(dirhandle);
1333 newitem = snew(struct scp_sftp_dirstack);
1334 newitem->next = scp_sftp_dirstack_head;
1335 newitem->names = ournames;
1336 newitem->namepos = 0;
1337 newitem->namelen = nnames;
1338 if (must_free_fname)
1339 newitem->dirpath = fname;
1341 newitem->dirpath = dupstr(fname);
1342 if (scp_sftp_wildcard) {
1343 newitem->wildcard = scp_sftp_wildcard;
1344 newitem->matched_something = 0;
1345 scp_sftp_wildcard = NULL;
1347 newitem->wildcard = NULL;
1349 scp_sftp_dirstack_head = newitem;
1351 if (newitem->wildcard) {
1352 act->action = SCP_SINK_RETRY;
1354 act->action = SCP_SINK_DIR;
1355 act->buf = dupstr(stripslashes(fname, 0));
1356 act->name = act->buf;
1357 act->size = 0; /* duhh, it's a directory */
1358 act->mode = 07777 & attrs.permissions;
1359 if (scp_sftp_preserve &&
1360 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1361 act->atime = attrs.atime;
1362 act->mtime = attrs.mtime;
1371 * It's a file. Return SCP_SINK_FILE.
1373 act->action = SCP_SINK_FILE;
1374 act->buf = dupstr(stripslashes(fname, 0));
1375 act->name = act->buf;
1376 if (attrs.flags & SSH_FILEXFER_ATTR_SIZE) {
1377 if (uint64_compare(attrs.size,
1378 uint64_make(0, ULONG_MAX)) > 0) {
1379 act->size = ULONG_MAX; /* *boggle* */
1381 act->size = attrs.size.lo;
1383 act->size = ULONG_MAX; /* no idea */
1384 act->mode = 07777 & attrs.permissions;
1385 if (scp_sftp_preserve &&
1386 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1387 act->atime = attrs.atime;
1388 act->mtime = attrs.mtime;
1392 if (must_free_fname)
1393 scp_sftp_currentname = fname;
1395 scp_sftp_currentname = dupstr(fname);
1410 if (ssh_scp_recv(&ch, 1) <= 0)
1413 bump("Protocol error: Unexpected newline");
1417 if (ssh_scp_recv(&ch, 1) <= 0)
1418 bump("Lost connection");
1421 act->buf = sresize(act->buf, bufsize, char);
1424 } while (ch != '\n');
1425 act->buf[i - 1] = '\0';
1427 case '\01': /* error */
1428 tell_user(stderr, "%s\n", act->buf);
1430 continue; /* go round again */
1431 case '\02': /* fatal error */
1432 bump("%s", act->buf);
1434 back->send(backhandle, "", 1);
1435 act->action = SCP_SINK_ENDDIR;
1438 if (sscanf(act->buf, "%ld %*d %ld %*d",
1439 &act->mtime, &act->atime) == 2) {
1441 back->send(backhandle, "", 1);
1442 continue; /* go round again */
1444 bump("Protocol error: Illegal time format");
1447 act->action = (action == 'C' ? SCP_SINK_FILE : SCP_SINK_DIR);
1450 bump("Protocol error: Expected control record");
1453 * We will go round this loop only once, unless we hit
1460 * If we get here, we must have seen SCP_SINK_FILE or
1463 if (sscanf(act->buf, "%o %lu %n", &act->mode, &act->size, &i) != 2)
1464 bump("Protocol error: Illegal file descriptor format");
1465 act->name = act->buf + i;
1470 int scp_accept_filexfer(void)
1473 scp_sftp_filehandle =
1474 fxp_open(scp_sftp_currentname, SSH_FXF_READ);
1475 if (!scp_sftp_filehandle) {
1476 tell_user(stderr, "pscp: unable to open %s: %s",
1477 scp_sftp_currentname, fxp_error());
1481 scp_sftp_fileoffset = uint64_make(0, 0);
1482 sfree(scp_sftp_currentname);
1485 back->send(backhandle, "", 1);
1486 return 0; /* can't fail */
1490 int scp_recv_filedata(char *data, int len)
1493 int actuallen = fxp_read(scp_sftp_filehandle, data,
1494 scp_sftp_fileoffset, len);
1495 if (actuallen == -1 && fxp_error_type() != SSH_FX_EOF) {
1496 tell_user(stderr, "pscp: error while reading: %s", fxp_error());
1503 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, actuallen);
1507 return ssh_scp_recv(data, len);
1511 int scp_finish_filerecv(void)
1514 fxp_close(scp_sftp_filehandle);
1517 back->send(backhandle, "", 1);
1522 /* ----------------------------------------------------------------------
1523 * Send an error message to the other side and to the screen.
1524 * Increment error counter.
1526 static void run_err(const char *fmt, ...)
1532 str = dupvprintf(fmt, ap);
1533 str2 = dupcat("scp: ", str, "\n", NULL);
1535 scp_send_errmsg(str2);
1536 tell_user(stderr, "%s", str2);
1542 * Execute the source part of the SCP protocol.
1544 static void source(char *src)
1551 unsigned long stat_bytes;
1552 time_t stat_starttime, stat_lasttime;
1554 attr = GetFileAttributes(src);
1555 if (attr == (DWORD) - 1) {
1556 run_err("%s: No such file or directory", src);
1560 if ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0) {
1563 * Avoid . and .. directories.
1566 p = strrchr(src, '/');
1568 p = strrchr(src, '\\');
1573 if (!strcmp(p, ".") || !strcmp(p, ".."))
1574 /* skip . and .. */ ;
1578 run_err("%s: not a regular file", src);
1583 if ((last = strrchr(src, '/')) == NULL)
1587 if (strrchr(last, '\\') != NULL)
1588 last = strrchr(last, '\\') + 1;
1589 if (last == src && strchr(src, ':') != NULL)
1590 last = strchr(src, ':') + 1;
1592 f = CreateFile(src, GENERIC_READ, FILE_SHARE_READ, NULL,
1593 OPEN_EXISTING, 0, 0);
1594 if (f == INVALID_HANDLE_VALUE) {
1595 run_err("%s: Cannot open file", src);
1600 FILETIME actime, wrtime;
1601 unsigned long mtime, atime;
1602 GetFileTime(f, NULL, &actime, &wrtime);
1603 TIME_WIN_TO_POSIX(actime, atime);
1604 TIME_WIN_TO_POSIX(wrtime, mtime);
1605 if (scp_send_filetimes(mtime, atime))
1609 size = GetFileSize(f, NULL);
1611 tell_user(stderr, "Sending file %s, size=%lu", last, size);
1612 if (scp_send_filename(last, size, 0644))
1616 stat_starttime = time(NULL);
1619 for (i = 0; i < size; i += 4096) {
1620 char transbuf[4096];
1625 if (!ReadFile(f, transbuf, k, &j, NULL) || j != k) {
1628 bump("%s: Read error", src);
1630 if (scp_send_filedata(transbuf, k))
1631 bump("%s: Network error occurred", src);
1635 if (time(NULL) != stat_lasttime || i + k == size) {
1636 stat_lasttime = time(NULL);
1637 print_stats(last, size, stat_bytes,
1638 stat_starttime, stat_lasttime);
1645 (void) scp_send_finish();
1649 * Recursively send the contents of a directory.
1651 static void rsource(char *src)
1653 char *last, *findfile;
1656 WIN32_FIND_DATA fdat;
1659 if ((last = strrchr(src, '/')) == NULL)
1663 if (strrchr(last, '\\') != NULL)
1664 last = strrchr(last, '\\') + 1;
1665 if (last == src && strchr(src, ':') != NULL)
1666 last = strchr(src, ':') + 1;
1668 /* maybe send filetime */
1670 save_target = scp_save_remotepath();
1673 tell_user(stderr, "Entering directory: %s", last);
1674 if (scp_send_dirname(last, 0755))
1677 findfile = dupcat(src, "/*", NULL);
1678 dir = FindFirstFile(findfile, &fdat);
1679 ok = (dir != INVALID_HANDLE_VALUE);
1681 if (strcmp(fdat.cFileName, ".") == 0 ||
1682 strcmp(fdat.cFileName, "..") == 0) {
1683 /* ignore . and .. */
1685 char *foundfile = dupcat(src, "/", fdat.cFileName, NULL);
1689 ok = FindNextFile(dir, &fdat);
1694 (void) scp_send_enddir();
1696 scp_restore_remotepath(save_target);
1700 * Execute the sink part of the SCP protocol.
1702 static void sink(char *targ, char *src)
1709 unsigned long received;
1711 unsigned long stat_bytes;
1712 time_t stat_starttime, stat_lasttime;
1715 attr = GetFileAttributes(targ);
1716 if (attr != (DWORD) - 1 && (attr & FILE_ATTRIBUTE_DIRECTORY) != 0)
1719 if (targetshouldbedirectory && !targisdir)
1720 bump("%s: Not a directory", targ);
1724 struct scp_sink_action act;
1725 if (scp_get_sink_action(&act))
1728 if (act.action == SCP_SINK_ENDDIR)
1731 if (act.action == SCP_SINK_RETRY)
1736 * Prevent the remote side from maliciously writing to
1737 * files outside the target area by sending a filename
1738 * containing `../'. In fact, it shouldn't be sending
1739 * filenames with any slashes or colons in at all; so
1740 * we'll find the last slash, backslash or colon in the
1741 * filename and use only the part after that. (And
1744 * In addition, we also ensure here that if we're
1745 * copying a single file and the target is a directory
1746 * (common usage: `pscp host:filename .') the remote
1747 * can't send us a _different_ file name. We can
1748 * distinguish this case because `src' will be non-NULL
1749 * and the last component of that will fail to match
1750 * (the last component of) the name sent.
1752 * Well, not always; if `src' is a wildcard, we do
1753 * expect to get back filenames that don't correspond
1754 * exactly to it. Ideally in this case, we would like
1755 * to ensure that the returned filename actually
1756 * matches the wildcard pattern - but one of SCP's
1757 * protocol infelicities is that wildcard matching is
1758 * done at the server end _by the server's rules_ and
1759 * so in general this is infeasible. Hence, we only
1760 * accept filenames that don't correspond to `src' if
1761 * unsafe mode is enabled or we are using SFTP (which
1762 * resolves remote wildcards on the client side and can
1765 char *striptarget, *stripsrc;
1767 striptarget = stripslashes(act.name, 1);
1768 if (striptarget != act.name) {
1769 tell_user(stderr, "warning: remote host sent a compound"
1770 " pathname '%s'", act.name);
1771 tell_user(stderr, " renaming local file to '%s'",
1776 * Also check to see if the target filename is '.' or
1777 * '..', or indeed '...' and so on because Windows
1778 * appears to interpret those like '..'.
1780 if (is_dots(striptarget)) {
1781 bump("security violation: remote host attempted to write to"
1782 " a '.' or '..' path!");
1786 stripsrc = stripslashes(src, 1);
1787 if (strcmp(striptarget, stripsrc) &&
1788 !using_sftp && !scp_unsafe_mode) {
1789 tell_user(stderr, "warning: remote host tried to write "
1790 "to a file called '%s'", striptarget);
1791 tell_user(stderr, " when we requested a file "
1792 "called '%s'.", stripsrc);
1793 tell_user(stderr, " If this is a wildcard, "
1794 "consider upgrading to SSH 2 or using");
1795 tell_user(stderr, " the '-unsafe' option. Renaming"
1796 " of this file has been disallowed.");
1797 /* Override the name the server provided with our own. */
1798 striptarget = stripsrc;
1802 if (targ[0] != '\0')
1803 destfname = dupcat(targ, "\\", striptarget, NULL);
1805 destfname = dupstr(striptarget);
1808 * In this branch of the if, the target area is a
1809 * single file with an explicitly specified name in any
1810 * case, so there's no danger.
1812 destfname = dupstr(targ);
1814 attr = GetFileAttributes(destfname);
1815 exists = (attr != (DWORD) - 1);
1817 if (act.action == SCP_SINK_DIR) {
1818 if (exists && (attr & FILE_ATTRIBUTE_DIRECTORY) == 0) {
1819 run_err("%s: Not a directory", destfname);
1823 if (!CreateDirectory(destfname, NULL)) {
1824 run_err("%s: Cannot create directory", destfname);
1828 sink(destfname, NULL);
1829 /* can we set the timestamp for directories ? */
1833 f = CreateFile(destfname, GENERIC_WRITE, 0, NULL,
1834 CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
1835 if (f == INVALID_HANDLE_VALUE) {
1836 run_err("%s: Cannot create file", destfname);
1840 if (scp_accept_filexfer())
1844 stat_starttime = time(NULL);
1846 stat_name = stripslashes(destfname, 1);
1849 while (received < act.size) {
1850 char transbuf[4096];
1851 DWORD blksize, read, written;
1853 if (blksize > act.size - received)
1854 blksize = act.size - received;
1855 read = scp_recv_filedata(transbuf, blksize);
1857 bump("Lost connection");
1860 if (!WriteFile(f, transbuf, read, &written, NULL) ||
1863 /* FIXME: in sftp we can actually abort the transfer */
1865 printf("\r%-25.25s | %50s\n",
1867 "Write error.. waiting for end of file");
1872 if (time(NULL) > stat_lasttime ||
1873 received + read == act.size) {
1874 stat_lasttime = time(NULL);
1875 print_stats(stat_name, act.size, stat_bytes,
1876 stat_starttime, stat_lasttime);
1882 FILETIME actime, wrtime;
1883 TIME_POSIX_TO_WIN(act.atime, actime);
1884 TIME_POSIX_TO_WIN(act.mtime, wrtime);
1885 SetFileTime(f, NULL, &actime, &wrtime);
1890 run_err("%s: Write error", destfname);
1893 (void) scp_finish_filerecv();
1900 * We will copy local files to a remote server.
1902 static void toremote(int argc, char *argv[])
1904 char *src, *targ, *host, *user;
1908 targ = argv[argc - 1];
1910 /* Separate host from filename */
1914 bump("targ == NULL in toremote()");
1918 /* Substitute "." for emtpy target */
1920 /* Separate host and username */
1922 host = strrchr(host, '@');
1933 /* Find out if the source filespec covers multiple files
1934 if so, we should set the targetshouldbedirectory flag */
1936 WIN32_FIND_DATA fdat;
1937 if (colon(argv[0]) != NULL)
1938 bump("%s: Remote to remote not supported", argv[0]);
1939 fh = FindFirstFile(argv[0], &fdat);
1940 if (fh == INVALID_HANDLE_VALUE)
1941 bump("%s: No such file or directory\n", argv[0]);
1942 if (FindNextFile(fh, &fdat))
1943 targetshouldbedirectory = 1;
1947 cmd = dupprintf("scp%s%s%s%s -t %s",
1948 verbose ? " -v" : "",
1949 recursive ? " -r" : "",
1950 preserve ? " -p" : "",
1951 targetshouldbedirectory ? " -d" : "", targ);
1952 do_cmd(host, user, cmd);
1955 scp_source_setup(targ, targetshouldbedirectory);
1957 for (i = 0; i < argc - 1; i++) {
1958 char *srcpath, *last;
1960 WIN32_FIND_DATA fdat;
1962 if (colon(src) != NULL) {
1963 tell_user(stderr, "%s: Remote to remote not supported\n", src);
1969 * Trim off the last pathname component of `src', to
1970 * provide the base pathname which will be prepended to
1971 * filenames returned from Find{First,Next}File.
1973 srcpath = dupstr(src);
1974 last = stripslashes(srcpath, 1);
1977 dir = FindFirstFile(src, &fdat);
1978 if (dir == INVALID_HANDLE_VALUE) {
1979 run_err("%s: No such file or directory", src);
1985 * Ensure that . and .. are never matched by wildcards,
1986 * but only by deliberate action.
1988 if (!strcmp(fdat.cFileName, ".") ||
1989 !strcmp(fdat.cFileName, "..")) {
1991 * Find*File has returned a special dir. We require
1992 * that _either_ `src' ends in a backslash followed
1993 * by that string, _or_ `src' is precisely that
1996 int len = strlen(src), dlen = strlen(fdat.cFileName);
1997 if (len == dlen && !strcmp(src, fdat.cFileName)) {
1999 } else if (len > dlen + 1 && src[len - dlen - 1] == '\\' &&
2000 !strcmp(src + len - dlen, fdat.cFileName)) {
2003 continue; /* ignore this one */
2005 filename = dupcat(srcpath, fdat.cFileName, NULL);
2008 } while (FindNextFile(dir, &fdat));
2015 * We will copy files from a remote server to the local machine.
2017 static void tolocal(int argc, char *argv[])
2019 char *src, *targ, *host, *user;
2023 bump("More than one remote source not supported");
2028 /* Separate host from filename */
2032 bump("Local to local copy not supported");
2036 /* Substitute "." for empty filename */
2038 /* Separate username and hostname */
2040 host = strrchr(host, '@');
2050 cmd = dupprintf("scp%s%s%s%s -f %s",
2051 verbose ? " -v" : "",
2052 recursive ? " -r" : "",
2053 preserve ? " -p" : "",
2054 targetshouldbedirectory ? " -d" : "", src);
2055 do_cmd(host, user, cmd);
2058 if (scp_sink_setup(src, preserve, recursive))
2065 * We will issue a list command to get a remote directory.
2067 static void get_dir_list(int argc, char *argv[])
2069 char *src, *host, *user;
2075 /* Separate host from filename */
2079 bump("Local to local copy not supported");
2083 /* Substitute "." for empty filename */
2085 /* Separate username and hostname */
2087 host = strrchr(host, '@');
2097 cmd = snewn(4 * strlen(src) + 100, char);
2098 strcpy(cmd, "ls -la '");
2099 p = cmd + strlen(cmd);
2100 for (q = src; *q; q++) {
2113 do_cmd(host, user, cmd);
2117 scp_sftp_listdir(src);
2119 while (ssh_scp_recv(&c, 1) > 0)
2120 tell_char(stdout, c);
2125 * Initialize the Win$ock driver.
2127 static void init_winsock(void)
2132 winsock_ver = MAKEWORD(1, 1);
2133 if (WSAStartup(winsock_ver, &wsadata))
2134 bump("Unable to initialise WinSock");
2135 if (LOBYTE(wsadata.wVersion) != 1 || HIBYTE(wsadata.wVersion) != 1)
2136 bump("WinSock version is incompatible with 1.1");
2140 * Short description of parameters.
2142 static void usage(void)
2144 printf("PuTTY Secure Copy client\n");
2145 printf("%s\n", ver);
2146 printf("Usage: pscp [options] [user@]host:source target\n");
2148 (" pscp [options] source [source...] [user@]host:target\n");
2149 printf(" pscp [options] -ls user@host:filespec\n");
2150 printf("Options:\n");
2151 printf(" -p preserve file attributes\n");
2152 printf(" -q quiet, don't show statistics\n");
2153 printf(" -r copy directories recursively\n");
2154 printf(" -v show verbose messages\n");
2155 printf(" -load sessname Load settings from saved session\n");
2156 printf(" -P port connect to specified port\n");
2157 printf(" -l user connect with specified username\n");
2158 printf(" -pw passw login with specified password\n");
2159 printf(" -1 -2 force use of particular SSH protocol version\n");
2160 printf(" -C enable compression\n");
2161 printf(" -i key private key file for authentication\n");
2162 printf(" -batch disable all interactive prompts\n");
2163 printf(" -unsafe allow server-side wildcards (DANGEROUS)\n");
2166 * -gui is an internal option, used by GUI front ends to get
2167 * pscp to pass progress reports back to them. It's not an
2168 * ordinary user-accessible option, so it shouldn't be part of
2169 * the command-line help. The only people who need to know
2170 * about it are programmers, and they can read the source.
2173 (" -gui hWnd GUI mode with the windows handle for receiving messages\n");
2178 void cmdline_error(char *p, ...)
2181 fprintf(stderr, "pscp: ");
2183 vfprintf(stderr, p, ap);
2185 fprintf(stderr, "\n try typing just \"pscp\" for help\n");
2190 * Main program (no, really?)
2192 int main(int argc, char *argv[])
2196 default_protocol = PROT_TELNET;
2198 flags = FLAG_STDERR | FLAG_SYNCAGENT;
2199 cmdline_tooltype = TOOLTYPE_FILETRANSFER;
2200 ssh_get_line = &console_get_line;
2204 for (i = 1; i < argc; i++) {
2206 if (argv[i][0] != '-')
2208 ret = cmdline_process_param(argv[i], i+1<argc?argv[i+1]:NULL, 1, &cfg);
2210 cmdline_error("option \"%s\" requires an argument", argv[i]);
2211 } else if (ret == 2) {
2212 i++; /* skip next argument */
2213 } else if (ret == 1) {
2214 /* We have our own verbosity in addition to `flags'. */
2215 if (flags & FLAG_VERBOSE)
2217 } else if (strcmp(argv[i], "-r") == 0) {
2219 } else if (strcmp(argv[i], "-p") == 0) {
2221 } else if (strcmp(argv[i], "-q") == 0) {
2223 } else if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "-?") == 0) {
2225 } else if (strcmp(argv[i], "-gui") == 0 && i + 1 < argc) {
2226 gui_hwnd = argv[++i];
2228 console_batch_mode = TRUE;
2229 } else if (strcmp(argv[i], "-ls") == 0) {
2231 } else if (strcmp(argv[i], "-batch") == 0) {
2232 console_batch_mode = 1;
2233 } else if (strcmp(argv[i], "-unsafe") == 0) {
2234 scp_unsafe_mode = 1;
2235 } else if (strcmp(argv[i], "--") == 0) {
2239 cmdline_error("unknown option \"%s\"", argv[i]);
2249 get_dir_list(argc, argv);
2256 targetshouldbedirectory = 1;
2258 if (colon(argv[argc - 1]) != NULL)
2259 toremote(argc, argv);
2261 tolocal(argc, argv);
2264 if (back != NULL && back->socket(backhandle) != NULL) {
2266 back->special(backhandle, TS_EOF);
2267 ssh_scp_recv(&ch, 1);
2272 /* GUI Adaptation - August 2000 */
2274 unsigned int msg_id = WM_RET_ERR_CNT;
2276 msg_id = WM_LS_RET_ERR_CNT;
2278 ((HWND) atoi(gui_hwnd), msg_id, (WPARAM) errs,
2279 0 /*lParam */ ))SleepEx(1000, TRUE);
2281 return (errs == 0 ? 0 : 1);