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 * Receive a block of data from the SSH link. Block until all data
311 * To do this, we repeatedly call the SSH protocol module, with our
312 * own trap in from_backend() to catch the data that comes back. We
313 * do this until we have enough data.
316 static unsigned char *outptr; /* where to put the data */
317 static unsigned outlen; /* how much data required */
318 static unsigned char *pending = NULL; /* any spare data */
319 static unsigned pendlen = 0, pendsize = 0; /* length and phys. size of buffer */
320 int from_backend(void *frontend, int is_stderr, const char *data, int datalen)
322 unsigned char *p = (unsigned char *) data;
323 unsigned len = (unsigned) datalen;
328 * stderr data is just spouted to local stderr and otherwise
332 fwrite(data, 1, len, stderr);
337 * If this is before the real session begins, just return.
343 unsigned used = outlen;
346 memcpy(outptr, p, used);
354 if (pendsize < pendlen + len) {
355 pendsize = pendlen + len + 4096;
356 pending = (pending ? srealloc(pending, pendsize) :
359 fatalbox("Out of memory");
361 memcpy(pending + pendlen, p, len);
367 static int scp_process_network_event(void)
372 FD_SET(scp_ssh_socket, &readfds);
373 if (select(1, &readfds, NULL, NULL, NULL) < 0)
375 select_result((WPARAM) scp_ssh_socket, (LPARAM) FD_READ);
378 static int ssh_scp_recv(unsigned char *buf, int len)
384 * See if the pending-input block contains some of what we
388 unsigned pendused = pendlen;
389 if (pendused > outlen)
391 memcpy(outptr, pending, pendused);
392 memmove(pending, pending + pendused, pendlen - pendused);
406 if (!scp_process_network_event())
414 * Loop through the ssh connection and authentication process.
416 static void ssh_scp_init(void)
418 if (scp_ssh_socket == INVALID_SOCKET)
420 while (!back->sendok(backhandle)) {
423 FD_SET(scp_ssh_socket, &readfds);
424 if (select(1, &readfds, NULL, NULL, NULL) < 0)
426 select_result((WPARAM) scp_ssh_socket, (LPARAM) FD_READ);
428 using_sftp = !ssh_fallback_cmd(backhandle);
432 * Print an error message and exit after closing the SSH link.
434 static void bump(char *fmt, ...)
439 str = dupvprintf(fmt, ap);
441 str2 = dupcat(str, "\n", NULL);
443 tell_str(stderr, str2);
447 if (back != NULL && back->socket(backhandle) != NULL) {
449 back->special(backhandle, TS_EOF);
450 ssh_scp_recv(&ch, 1);
454 unsigned int msg_id = WM_RET_ERR_CNT;
456 msg_id = WM_LS_RET_ERR_CNT;
458 ((HWND) atoi(gui_hwnd), msg_id, (WPARAM) errs,
459 0 /*lParam */ ))SleepEx(1000, TRUE);
466 * Open an SSH connection to user@host and execute cmd.
468 static void do_cmd(char *host, char *user, char *cmd)
470 char *err, *realhost;
473 if (host == NULL || host[0] == '\0')
474 bump("Empty host name");
476 /* Try to load settings for this host */
477 do_defaults(host, &cfg);
478 if (cfg.host[0] == '\0') {
479 /* No settings for this host; use defaults */
480 do_defaults(NULL, &cfg);
481 strncpy(cfg.host, host, sizeof(cfg.host) - 1);
482 cfg.host[sizeof(cfg.host) - 1] = '\0';
486 * Force use of SSH. (If they got the protocol wrong we assume the
487 * port is useless too.)
489 if (cfg.protocol != PROT_SSH) {
490 cfg.protocol = PROT_SSH;
495 * Enact command-line overrides.
497 cmdline_run_saved(&cfg);
500 * Trim leading whitespace off the hostname if it's there.
503 int space = strspn(cfg.host, " \t");
504 memmove(cfg.host, cfg.host+space, 1+strlen(cfg.host)-space);
507 /* See if host is of the form user@host */
508 if (cfg.host[0] != '\0') {
509 char *atsign = strchr(cfg.host, '@');
510 /* Make sure we're not overflowing the user field */
512 if (atsign - cfg.host < sizeof cfg.username) {
513 strncpy(cfg.username, cfg.host, atsign - cfg.host);
514 cfg.username[atsign - cfg.host] = '\0';
516 memmove(cfg.host, atsign + 1, 1 + strlen(atsign + 1));
521 * Trim a colon suffix off the hostname if it's there.
523 cfg.host[strcspn(cfg.host, ":")] = '\0';
526 * Remove any remaining whitespace from the hostname.
530 while (cfg.host[p2] != '\0') {
531 if (cfg.host[p2] != ' ' && cfg.host[p2] != '\t') {
532 cfg.host[p1] = cfg.host[p2];
541 if (user != NULL && user[0] != '\0') {
542 strncpy(cfg.username, user, sizeof(cfg.username) - 1);
543 cfg.username[sizeof(cfg.username) - 1] = '\0';
544 } else if (cfg.username[0] == '\0') {
546 if (GetUserName(user, &namelen) == FALSE)
547 bump("Empty user name");
548 user = smalloc(namelen * sizeof(char));
549 GetUserName(user, &namelen);
551 tell_user(stderr, "Guessing user name: %s", user);
552 strncpy(cfg.username, user, sizeof(cfg.username) - 1);
553 cfg.username[sizeof(cfg.username) - 1] = '\0';
558 * Disable scary things which shouldn't be enabled for simple
559 * things like SCP and SFTP: agent forwarding, port forwarding,
564 cfg.portfwd[0] = cfg.portfwd[1] = '\0';
567 * Attempt to start the SFTP subsystem as a first choice,
568 * falling back to the provided scp command if that fails.
570 strcpy(cfg.remote_cmd, "sftp");
571 cfg.ssh_subsys = TRUE;
572 cfg.remote_cmd_ptr2 = cmd;
573 cfg.ssh_subsys2 = FALSE;
578 err = back->init(NULL, &backhandle, &cfg, cfg.host, cfg.port, &realhost,0);
580 bump("ssh_init: %s", err);
581 logctx = log_init(NULL, &cfg);
582 back->provide_logctx(backhandle, logctx);
583 console_provide_logctx(logctx);
585 if (verbose && realhost != NULL)
586 tell_user(stderr, "Connected to %s\n", realhost);
591 * Update statistic information about current file.
593 static void print_stats(char *name, unsigned long size, unsigned long done,
594 time_t start, time_t now)
603 elap = (unsigned long) difftime(now, start);
606 ratebs = (float) done / elap;
608 ratebs = (float) done;
613 eta = (unsigned long) ((size - done) / ratebs);
614 sprintf(etastr, "%02ld:%02ld:%02ld",
615 eta / 3600, (eta % 3600) / 60, eta % 60);
617 pct = (int) (100 * (done * 1.0 / size));
620 /* GUI Adaptation - Sept 2000 */
621 gui_update_stats(name, size, pct, elap, done, eta,
622 (unsigned long) ratebs);
624 len = printf("\r%-25.25s | %10ld kB | %5.1f kB/s | ETA: %8s | %3d%%",
625 name, done / 1024, ratebs / 1024.0, etastr, pct);
626 if (len < prev_stats_len)
627 printf("%*s", prev_stats_len - len, "");
628 prev_stats_len = len;
636 * Find a colon in str and return a pointer to the colon.
637 * This is used to separate hostname from filename.
639 static char *colon(char *str)
641 /* We ignore a leading colon, since the hostname cannot be
642 empty. We also ignore a colon as second character because
643 of filenames like f:myfile.txt. */
644 if (str[0] == '\0' || str[0] == ':' || str[1] == ':')
646 while (*str != '\0' && *str != ':' && *str != '/' && *str != '\\')
655 * Return a pointer to the portion of str that comes after the last
656 * slash (or backslash or colon, if `local' is TRUE).
658 static char *stripslashes(char *str, int local)
663 p = strchr(str, ':');
667 p = strrchr(str, '/');
671 p = strrchr(str, '\\');
679 * Determine whether a string is entirely composed of dots.
681 static int is_dots(char *str)
683 return str[strspn(str, ".")] == '\0';
687 * Wait for a response from the other side.
688 * Return 0 if ok, -1 if error.
690 static int response(void)
692 char ch, resp, rbuf[2048];
695 if (ssh_scp_recv(&resp, 1) <= 0)
696 bump("Lost connection");
706 case 2: /* fatal error */
708 if (ssh_scp_recv(&ch, 1) <= 0)
709 bump("Protocol error: Lost connection");
711 } while (p < sizeof(rbuf) && ch != '\n');
714 tell_user(stderr, "%s\n", rbuf);
722 int sftp_recvdata(char *buf, int len)
724 return ssh_scp_recv(buf, len);
726 int sftp_senddata(char *buf, int len)
728 back->send(backhandle, (unsigned char *) buf, len);
732 /* ----------------------------------------------------------------------
733 * sftp-based replacement for the hacky `pscp -ls'.
735 static int sftp_ls_compare(const void *av, const void *bv)
737 const struct fxp_name *a = (const struct fxp_name *) av;
738 const struct fxp_name *b = (const struct fxp_name *) bv;
739 return strcmp(a->filename, b->filename);
741 void scp_sftp_listdir(char *dirname)
743 struct fxp_handle *dirh;
744 struct fxp_names *names;
745 struct fxp_name *ournames;
746 int nnames, namesize;
750 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
755 printf("Listing directory %s\n", dirname);
757 dirh = fxp_opendir(dirname);
759 printf("Unable to open %s: %s\n", dirname, fxp_error());
761 nnames = namesize = 0;
766 names = fxp_readdir(dirh);
768 if (fxp_error_type() == SSH_FX_EOF)
770 printf("Reading directory %s: %s\n", dirname, fxp_error());
773 if (names->nnames == 0) {
774 fxp_free_names(names);
778 if (nnames + names->nnames >= namesize) {
779 namesize += names->nnames + 128;
781 srealloc(ournames, namesize * sizeof(*ournames));
784 for (i = 0; i < names->nnames; i++)
785 ournames[nnames++] = names->names[i];
787 names->nnames = 0; /* prevent free_names */
788 fxp_free_names(names);
793 * Now we have our filenames. Sort them by actual file
794 * name, and then output the longname parts.
796 qsort(ournames, nnames, sizeof(*ournames), sftp_ls_compare);
801 for (i = 0; i < nnames; i++)
802 printf("%s\n", ournames[i].longname);
806 /* ----------------------------------------------------------------------
807 * Helper routines that contain the actual SCP protocol elements,
808 * implemented both as SCP1 and SFTP.
811 static struct scp_sftp_dirstack {
812 struct scp_sftp_dirstack *next;
813 struct fxp_name *names;
814 int namepos, namelen;
817 int matched_something; /* wildcard match set was non-empty */
818 } *scp_sftp_dirstack_head;
819 static char *scp_sftp_remotepath, *scp_sftp_currentname;
820 static char *scp_sftp_wildcard;
821 static int scp_sftp_targetisdir, scp_sftp_donethistarget;
822 static int scp_sftp_preserve, scp_sftp_recursive;
823 static unsigned long scp_sftp_mtime, scp_sftp_atime;
824 static int scp_has_times;
825 static struct fxp_handle *scp_sftp_filehandle;
826 static uint64 scp_sftp_fileoffset;
828 void scp_source_setup(char *target, int shouldbedir)
832 * Find out whether the target filespec is in fact a
835 struct fxp_attrs attrs;
838 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
843 if (!fxp_stat(target, &attrs) ||
844 !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS))
845 scp_sftp_targetisdir = 0;
847 scp_sftp_targetisdir = (attrs.permissions & 0040000) != 0;
849 if (shouldbedir && !scp_sftp_targetisdir) {
850 bump("pscp: remote filespec %s: not a directory\n", target);
853 scp_sftp_remotepath = dupstr(target);
861 int scp_send_errmsg(char *str)
864 /* do nothing; we never need to send our errors to the server */
866 back->send(backhandle, "\001", 1);/* scp protocol error prefix */
867 back->send(backhandle, str, strlen(str));
869 return 0; /* can't fail */
872 int scp_send_filetimes(unsigned long mtime, unsigned long atime)
875 scp_sftp_mtime = mtime;
876 scp_sftp_atime = atime;
881 sprintf(buf, "T%lu 0 %lu 0\n", mtime, atime);
882 back->send(backhandle, buf, strlen(buf));
887 int scp_send_filename(char *name, unsigned long size, int modes)
891 if (scp_sftp_targetisdir) {
892 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
894 fullname = dupstr(scp_sftp_remotepath);
896 scp_sftp_filehandle =
897 fxp_open(fullname, SSH_FXF_WRITE | SSH_FXF_CREAT | SSH_FXF_TRUNC);
898 if (!scp_sftp_filehandle) {
899 tell_user(stderr, "pscp: unable to open %s: %s",
900 fullname, fxp_error());
904 scp_sftp_fileoffset = uint64_make(0, 0);
909 sprintf(buf, "C%04o %lu ", modes, size);
910 back->send(backhandle, buf, strlen(buf));
911 back->send(backhandle, name, strlen(name));
912 back->send(backhandle, "\n", 1);
917 int scp_send_filedata(char *data, int len)
920 if (!scp_sftp_filehandle) {
923 if (!fxp_write(scp_sftp_filehandle, data, scp_sftp_fileoffset, len)) {
924 tell_user(stderr, "error while writing: %s\n", fxp_error());
928 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, len);
931 int bufsize = back->send(backhandle, data, len);
934 * If the network transfer is backing up - that is, the
935 * remote site is not accepting data as fast as we can
936 * produce it - then we must loop on network events until
937 * we have space in the buffer again.
939 while (bufsize > MAX_SCP_BUFSIZE) {
940 if (!scp_process_network_event())
942 bufsize = back->sendbuffer(backhandle);
949 int scp_send_finish(void)
952 struct fxp_attrs attrs;
953 if (!scp_sftp_filehandle) {
957 attrs.flags = SSH_FILEXFER_ATTR_ACMODTIME;
958 attrs.atime = scp_sftp_atime;
959 attrs.mtime = scp_sftp_mtime;
960 if (!fxp_fsetstat(scp_sftp_filehandle, attrs)) {
961 tell_user(stderr, "unable to set file times: %s\n", fxp_error());
965 fxp_close(scp_sftp_filehandle);
969 back->send(backhandle, "", 1);
974 char *scp_save_remotepath(void)
977 return scp_sftp_remotepath;
982 void scp_restore_remotepath(char *data)
985 scp_sftp_remotepath = data;
988 int scp_send_dirname(char *name, int modes)
993 struct fxp_attrs attrs;
994 if (scp_sftp_targetisdir) {
995 fullname = dupcat(scp_sftp_remotepath, "/", name, NULL);
997 fullname = dupstr(scp_sftp_remotepath);
1001 * We don't worry about whether we managed to create the
1002 * directory, because if it exists already it's OK just to
1003 * use it. Instead, we will stat it afterwards, and if it
1004 * exists and is a directory we will assume we were either
1005 * successful or it didn't matter.
1007 if (!fxp_mkdir(fullname))
1010 err = "server reported no error";
1011 if (!fxp_stat(fullname, &attrs) ||
1012 !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) ||
1013 !(attrs.permissions & 0040000)) {
1014 tell_user(stderr, "unable to create directory %s: %s",
1020 scp_sftp_remotepath = fullname;
1025 sprintf(buf, "D%04o 0 ", modes);
1026 back->send(backhandle, buf, strlen(buf));
1027 back->send(backhandle, name, strlen(name));
1028 back->send(backhandle, "\n", 1);
1033 int scp_send_enddir(void)
1036 sfree(scp_sftp_remotepath);
1039 back->send(backhandle, "E\n", 2);
1045 * Yes, I know; I have an scp_sink_setup _and_ an scp_sink_init.
1046 * That's bad. The difference is that scp_sink_setup is called once
1047 * right at the start, whereas scp_sink_init is called to
1048 * initialise every level of recursion in the protocol.
1050 int scp_sink_setup(char *source, int preserve, int recursive)
1056 tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
1061 * It's possible that the source string we've been given
1062 * contains a wildcard. If so, we must split the directory
1063 * away from the wildcard itself (throwing an error if any
1064 * wildcardness comes before the final slash) and arrange
1065 * things so that a dirstack entry will be set up.
1067 newsource = smalloc(1+strlen(source));
1068 if (!wc_unescape(newsource, source)) {
1069 /* Yes, here we go; it's a wildcard. Bah. */
1070 char *dupsource, *lastpart, *dirpart, *wildcard;
1071 dupsource = dupstr(source);
1072 lastpart = stripslashes(dupsource, 0);
1073 wildcard = dupstr(lastpart);
1075 if (*dupsource && dupsource[1]) {
1077 * The remains of dupsource are at least two
1078 * characters long, meaning the pathname wasn't
1079 * empty or just `/'. Hence, we remove the trailing
1082 lastpart[-1] = '\0';
1083 } else if (!*dupsource) {
1085 * The remains of dupsource are _empty_ - the whole
1086 * pathname was a wildcard. Hence we need to
1087 * replace it with ".".
1090 dupsource = dupstr(".");
1094 * Now we have separated our string into dupsource (the
1095 * directory part) and wildcard. Both of these will
1096 * need freeing at some point. Next step is to remove
1097 * wildcard escapes from the directory part, throwing
1098 * an error if it contains a real wildcard.
1100 dirpart = smalloc(1+strlen(dupsource));
1101 if (!wc_unescape(dirpart, dupsource)) {
1102 tell_user(stderr, "%s: multiple-level wildcards unsupported",
1112 * Now we have dirpart (unescaped, ie a valid remote
1113 * path), and wildcard (a wildcard). This will be
1114 * sufficient to arrange a dirstack entry.
1116 scp_sftp_remotepath = dirpart;
1117 scp_sftp_wildcard = wildcard;
1120 scp_sftp_remotepath = newsource;
1121 scp_sftp_wildcard = NULL;
1123 scp_sftp_preserve = preserve;
1124 scp_sftp_recursive = recursive;
1125 scp_sftp_donethistarget = 0;
1126 scp_sftp_dirstack_head = NULL;
1131 int scp_sink_init(void)
1134 back->send(backhandle, "", 1);
1139 #define SCP_SINK_FILE 1
1140 #define SCP_SINK_DIR 2
1141 #define SCP_SINK_ENDDIR 3
1142 #define SCP_SINK_RETRY 4 /* not an action; just try again */
1143 struct scp_sink_action {
1144 int action; /* FILE, DIR, ENDDIR */
1145 char *buf; /* will need freeing after use */
1146 char *name; /* filename or dirname (not ENDDIR) */
1147 int mode; /* access mode (not ENDDIR) */
1148 unsigned long size; /* file size (not ENDDIR) */
1149 int settime; /* 1 if atime and mtime are filled */
1150 unsigned long atime, mtime; /* access times for the file */
1153 int scp_get_sink_action(struct scp_sink_action *act)
1157 int must_free_fname;
1158 struct fxp_attrs attrs;
1161 if (!scp_sftp_dirstack_head) {
1162 if (!scp_sftp_donethistarget) {
1164 * Simple case: we are only dealing with one file.
1166 fname = scp_sftp_remotepath;
1167 must_free_fname = 0;
1168 scp_sftp_donethistarget = 1;
1171 * Even simpler case: one file _which we've done_.
1172 * Return 1 (finished).
1178 * We're now in the middle of stepping through a list
1179 * of names returned from fxp_readdir(); so let's carry
1182 struct scp_sftp_dirstack *head = scp_sftp_dirstack_head;
1183 while (head->namepos < head->namelen &&
1184 (is_dots(head->names[head->namepos].filename) ||
1186 !wc_match(head->wildcard,
1187 head->names[head->namepos].filename))))
1188 head->namepos++; /* skip . and .. */
1189 if (head->namepos < head->namelen) {
1190 head->matched_something = 1;
1191 fname = dupcat(head->dirpath, "/",
1192 head->names[head->namepos++].filename,
1194 must_free_fname = 1;
1197 * We've come to the end of the list; pop it off
1198 * the stack and return an ENDDIR action (or RETRY
1199 * if this was a wildcard match).
1201 if (head->wildcard) {
1202 act->action = SCP_SINK_RETRY;
1203 if (!head->matched_something) {
1204 tell_user(stderr, "pscp: wildcard '%s' matched "
1205 "no files", head->wildcard);
1208 sfree(head->wildcard);
1211 act->action = SCP_SINK_ENDDIR;
1214 sfree(head->dirpath);
1216 scp_sftp_dirstack_head = head->next;
1224 * Now we have a filename. Stat it, and see if it's a file
1227 ret = fxp_stat(fname, &attrs);
1228 if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS)) {
1229 tell_user(stderr, "unable to identify %s: %s", fname,
1230 ret ? "file type not supplied" : fxp_error());
1235 if (attrs.permissions & 0040000) {
1236 struct scp_sftp_dirstack *newitem;
1237 struct fxp_handle *dirhandle;
1238 int nnames, namesize;
1239 struct fxp_name *ournames;
1240 struct fxp_names *names;
1243 * It's a directory. If we're not in recursive mode,
1244 * this merits a complaint (which is fatal if the name
1245 * was specified directly, but not if it was matched by
1248 * We skip this complaint completely if
1249 * scp_sftp_wildcard is set, because that's an
1250 * indication that we're not actually supposed to
1251 * _recursively_ transfer the dir, just scan it for
1252 * things matching the wildcard.
1254 if (!scp_sftp_recursive && !scp_sftp_wildcard) {
1255 tell_user(stderr, "pscp: %s: is a directory", fname);
1257 if (must_free_fname) sfree(fname);
1258 if (scp_sftp_dirstack_head) {
1259 act->action = SCP_SINK_RETRY;
1267 * Otherwise, the fun begins. We must fxp_opendir() the
1268 * directory, slurp the filenames into memory, return
1269 * SCP_SINK_DIR (unless this is a wildcard match), and
1270 * set targetisdir. The next time we're called, we will
1271 * run through the list of filenames one by one,
1272 * matching them against a wildcard if present.
1274 * If targetisdir is _already_ set (meaning we're
1275 * already in the middle of going through another such
1276 * list), we must push the other (target,namelist) pair
1279 dirhandle = fxp_opendir(fname);
1281 tell_user(stderr, "scp: unable to open directory %s: %s",
1282 fname, fxp_error());
1283 if (must_free_fname) sfree(fname);
1287 nnames = namesize = 0;
1292 names = fxp_readdir(dirhandle);
1293 if (names == NULL) {
1294 if (fxp_error_type() == SSH_FX_EOF)
1296 tell_user(stderr, "scp: reading directory %s: %s\n",
1297 fname, fxp_error());
1298 if (must_free_fname) sfree(fname);
1303 if (names->nnames == 0) {
1304 fxp_free_names(names);
1307 if (nnames + names->nnames >= namesize) {
1308 namesize += names->nnames + 128;
1310 srealloc(ournames, namesize * sizeof(*ournames));
1312 for (i = 0; i < names->nnames; i++)
1313 ournames[nnames++] = names->names[i];
1314 names->nnames = 0; /* prevent free_names */
1315 fxp_free_names(names);
1317 fxp_close(dirhandle);
1319 newitem = smalloc(sizeof(struct scp_sftp_dirstack));
1320 newitem->next = scp_sftp_dirstack_head;
1321 newitem->names = ournames;
1322 newitem->namepos = 0;
1323 newitem->namelen = nnames;
1324 if (must_free_fname)
1325 newitem->dirpath = fname;
1327 newitem->dirpath = dupstr(fname);
1328 if (scp_sftp_wildcard) {
1329 newitem->wildcard = scp_sftp_wildcard;
1330 newitem->matched_something = 0;
1331 scp_sftp_wildcard = NULL;
1333 newitem->wildcard = NULL;
1335 scp_sftp_dirstack_head = newitem;
1337 if (newitem->wildcard) {
1338 act->action = SCP_SINK_RETRY;
1340 act->action = SCP_SINK_DIR;
1341 act->buf = dupstr(stripslashes(fname, 0));
1342 act->name = act->buf;
1343 act->size = 0; /* duhh, it's a directory */
1344 act->mode = 07777 & attrs.permissions;
1345 if (scp_sftp_preserve &&
1346 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1347 act->atime = attrs.atime;
1348 act->mtime = attrs.mtime;
1357 * It's a file. Return SCP_SINK_FILE.
1359 act->action = SCP_SINK_FILE;
1360 act->buf = dupstr(stripslashes(fname, 0));
1361 act->name = act->buf;
1362 if (attrs.flags & SSH_FILEXFER_ATTR_SIZE) {
1363 if (uint64_compare(attrs.size,
1364 uint64_make(0, ULONG_MAX)) > 0) {
1365 act->size = ULONG_MAX; /* *boggle* */
1367 act->size = attrs.size.lo;
1369 act->size = ULONG_MAX; /* no idea */
1370 act->mode = 07777 & attrs.permissions;
1371 if (scp_sftp_preserve &&
1372 (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
1373 act->atime = attrs.atime;
1374 act->mtime = attrs.mtime;
1378 if (must_free_fname)
1379 scp_sftp_currentname = fname;
1381 scp_sftp_currentname = dupstr(fname);
1396 if (ssh_scp_recv(&ch, 1) <= 0)
1399 bump("Protocol error: Unexpected newline");
1403 if (ssh_scp_recv(&ch, 1) <= 0)
1404 bump("Lost connection");
1407 act->buf = srealloc(act->buf, bufsize);
1410 } while (ch != '\n');
1411 act->buf[i - 1] = '\0';
1413 case '\01': /* error */
1414 tell_user(stderr, "%s\n", act->buf);
1416 continue; /* go round again */
1417 case '\02': /* fatal error */
1418 bump("%s", act->buf);
1420 back->send(backhandle, "", 1);
1421 act->action = SCP_SINK_ENDDIR;
1424 if (sscanf(act->buf, "%ld %*d %ld %*d",
1425 &act->mtime, &act->atime) == 2) {
1427 back->send(backhandle, "", 1);
1428 continue; /* go round again */
1430 bump("Protocol error: Illegal time format");
1433 act->action = (action == 'C' ? SCP_SINK_FILE : SCP_SINK_DIR);
1436 bump("Protocol error: Expected control record");
1439 * We will go round this loop only once, unless we hit
1446 * If we get here, we must have seen SCP_SINK_FILE or
1449 if (sscanf(act->buf, "%o %lu %n", &act->mode, &act->size, &i) != 2)
1450 bump("Protocol error: Illegal file descriptor format");
1451 act->name = act->buf + i;
1456 int scp_accept_filexfer(void)
1459 scp_sftp_filehandle =
1460 fxp_open(scp_sftp_currentname, SSH_FXF_READ);
1461 if (!scp_sftp_filehandle) {
1462 tell_user(stderr, "pscp: unable to open %s: %s",
1463 scp_sftp_currentname, fxp_error());
1467 scp_sftp_fileoffset = uint64_make(0, 0);
1468 sfree(scp_sftp_currentname);
1471 back->send(backhandle, "", 1);
1472 return 0; /* can't fail */
1476 int scp_recv_filedata(char *data, int len)
1479 int actuallen = fxp_read(scp_sftp_filehandle, data,
1480 scp_sftp_fileoffset, len);
1481 if (actuallen == -1 && fxp_error_type() != SSH_FX_EOF) {
1482 tell_user(stderr, "pscp: error while reading: %s", fxp_error());
1489 scp_sftp_fileoffset = uint64_add32(scp_sftp_fileoffset, actuallen);
1493 return ssh_scp_recv(data, len);
1497 int scp_finish_filerecv(void)
1500 fxp_close(scp_sftp_filehandle);
1503 back->send(backhandle, "", 1);
1508 /* ----------------------------------------------------------------------
1509 * Send an error message to the other side and to the screen.
1510 * Increment error counter.
1512 static void run_err(const char *fmt, ...)
1518 str = dupvprintf(fmt, ap);
1519 str2 = dupcat("scp: ", str, "\n", NULL);
1521 scp_send_errmsg(str2);
1522 tell_user(stderr, "%s", str2);
1528 * Execute the source part of the SCP protocol.
1530 static void source(char *src)
1537 unsigned long stat_bytes;
1538 time_t stat_starttime, stat_lasttime;
1540 attr = GetFileAttributes(src);
1541 if (attr == (DWORD) - 1) {
1542 run_err("%s: No such file or directory", src);
1546 if ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0) {
1549 * Avoid . and .. directories.
1552 p = strrchr(src, '/');
1554 p = strrchr(src, '\\');
1559 if (!strcmp(p, ".") || !strcmp(p, ".."))
1560 /* skip . and .. */ ;
1564 run_err("%s: not a regular file", src);
1569 if ((last = strrchr(src, '/')) == NULL)
1573 if (strrchr(last, '\\') != NULL)
1574 last = strrchr(last, '\\') + 1;
1575 if (last == src && strchr(src, ':') != NULL)
1576 last = strchr(src, ':') + 1;
1578 f = CreateFile(src, GENERIC_READ, FILE_SHARE_READ, NULL,
1579 OPEN_EXISTING, 0, 0);
1580 if (f == INVALID_HANDLE_VALUE) {
1581 run_err("%s: Cannot open file", src);
1586 FILETIME actime, wrtime;
1587 unsigned long mtime, atime;
1588 GetFileTime(f, NULL, &actime, &wrtime);
1589 TIME_WIN_TO_POSIX(actime, atime);
1590 TIME_WIN_TO_POSIX(wrtime, mtime);
1591 if (scp_send_filetimes(mtime, atime))
1595 size = GetFileSize(f, NULL);
1597 tell_user(stderr, "Sending file %s, size=%lu", last, size);
1598 if (scp_send_filename(last, size, 0644))
1602 stat_starttime = time(NULL);
1605 for (i = 0; i < size; i += 4096) {
1606 char transbuf[4096];
1611 if (!ReadFile(f, transbuf, k, &j, NULL) || j != k) {
1614 bump("%s: Read error", src);
1616 if (scp_send_filedata(transbuf, k))
1617 bump("%s: Network error occurred", src);
1621 if (time(NULL) != stat_lasttime || i + k == size) {
1622 stat_lasttime = time(NULL);
1623 print_stats(last, size, stat_bytes,
1624 stat_starttime, stat_lasttime);
1631 (void) scp_send_finish();
1635 * Recursively send the contents of a directory.
1637 static void rsource(char *src)
1639 char *last, *findfile;
1642 WIN32_FIND_DATA fdat;
1645 if ((last = strrchr(src, '/')) == NULL)
1649 if (strrchr(last, '\\') != NULL)
1650 last = strrchr(last, '\\') + 1;
1651 if (last == src && strchr(src, ':') != NULL)
1652 last = strchr(src, ':') + 1;
1654 /* maybe send filetime */
1656 save_target = scp_save_remotepath();
1659 tell_user(stderr, "Entering directory: %s", last);
1660 if (scp_send_dirname(last, 0755))
1663 findfile = dupcat(src, "/*", NULL);
1664 dir = FindFirstFile(findfile, &fdat);
1665 ok = (dir != INVALID_HANDLE_VALUE);
1667 if (strcmp(fdat.cFileName, ".") == 0 ||
1668 strcmp(fdat.cFileName, "..") == 0) {
1669 /* ignore . and .. */
1671 char *foundfile = dupcat(src, "/", fdat.cFileName, NULL);
1675 ok = FindNextFile(dir, &fdat);
1680 (void) scp_send_enddir();
1682 scp_restore_remotepath(save_target);
1686 * Execute the sink part of the SCP protocol.
1688 static void sink(char *targ, char *src)
1695 unsigned long received;
1697 unsigned long stat_bytes;
1698 time_t stat_starttime, stat_lasttime;
1701 attr = GetFileAttributes(targ);
1702 if (attr != (DWORD) - 1 && (attr & FILE_ATTRIBUTE_DIRECTORY) != 0)
1705 if (targetshouldbedirectory && !targisdir)
1706 bump("%s: Not a directory", targ);
1710 struct scp_sink_action act;
1711 if (scp_get_sink_action(&act))
1714 if (act.action == SCP_SINK_ENDDIR)
1717 if (act.action == SCP_SINK_RETRY)
1722 * Prevent the remote side from maliciously writing to
1723 * files outside the target area by sending a filename
1724 * containing `../'. In fact, it shouldn't be sending
1725 * filenames with any slashes or colons in at all; so
1726 * we'll find the last slash, backslash or colon in the
1727 * filename and use only the part after that. (And
1730 * In addition, we also ensure here that if we're
1731 * copying a single file and the target is a directory
1732 * (common usage: `pscp host:filename .') the remote
1733 * can't send us a _different_ file name. We can
1734 * distinguish this case because `src' will be non-NULL
1735 * and the last component of that will fail to match
1736 * (the last component of) the name sent.
1738 * Well, not always; if `src' is a wildcard, we do
1739 * expect to get back filenames that don't correspond
1740 * exactly to it. Ideally in this case, we would like
1741 * to ensure that the returned filename actually
1742 * matches the wildcard pattern - but one of SCP's
1743 * protocol infelicities is that wildcard matching is
1744 * done at the server end _by the server's rules_ and
1745 * so in general this is infeasible. Hence, we only
1746 * accept filenames that don't correspond to `src' if
1747 * unsafe mode is enabled or we are using SFTP (which
1748 * resolves remote wildcards on the client side and can
1751 char *striptarget, *stripsrc;
1753 striptarget = stripslashes(act.name, 1);
1754 if (striptarget != act.name) {
1755 tell_user(stderr, "warning: remote host sent a compound"
1756 " pathname '%s'", act.name);
1757 tell_user(stderr, " renaming local file to '%s'",
1762 * Also check to see if the target filename is '.' or
1763 * '..', or indeed '...' and so on because Windows
1764 * appears to interpret those like '..'.
1766 if (is_dots(striptarget)) {
1767 bump("security violation: remote host attempted to write to"
1768 " a '.' or '..' path!");
1772 stripsrc = stripslashes(src, 1);
1773 if (strcmp(striptarget, stripsrc) &&
1774 !using_sftp && !scp_unsafe_mode) {
1775 tell_user(stderr, "warning: remote host tried to write "
1776 "to a file called '%s'", striptarget);
1777 tell_user(stderr, " when we requested a file "
1778 "called '%s'.", stripsrc);
1779 tell_user(stderr, " If this is a wildcard, "
1780 "consider upgrading to SSH 2 or using");
1781 tell_user(stderr, " the '-unsafe' option. Renaming"
1782 " of this file has been disallowed.");
1783 /* Override the name the server provided with our own. */
1784 striptarget = stripsrc;
1788 if (targ[0] != '\0')
1789 destfname = dupcat(targ, "\\", striptarget, NULL);
1791 destfname = dupstr(striptarget);
1794 * In this branch of the if, the target area is a
1795 * single file with an explicitly specified name in any
1796 * case, so there's no danger.
1798 destfname = dupstr(targ);
1800 attr = GetFileAttributes(destfname);
1801 exists = (attr != (DWORD) - 1);
1803 if (act.action == SCP_SINK_DIR) {
1804 if (exists && (attr & FILE_ATTRIBUTE_DIRECTORY) == 0) {
1805 run_err("%s: Not a directory", destfname);
1809 if (!CreateDirectory(destfname, NULL)) {
1810 run_err("%s: Cannot create directory", destfname);
1814 sink(destfname, NULL);
1815 /* can we set the timestamp for directories ? */
1819 f = CreateFile(destfname, GENERIC_WRITE, 0, NULL,
1820 CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
1821 if (f == INVALID_HANDLE_VALUE) {
1822 run_err("%s: Cannot create file", destfname);
1826 if (scp_accept_filexfer())
1830 stat_starttime = time(NULL);
1832 stat_name = stripslashes(destfname, 1);
1835 while (received < act.size) {
1836 char transbuf[4096];
1837 DWORD blksize, read, written;
1839 if (blksize > act.size - received)
1840 blksize = act.size - received;
1841 read = scp_recv_filedata(transbuf, blksize);
1843 bump("Lost connection");
1846 if (!WriteFile(f, transbuf, read, &written, NULL) ||
1849 /* FIXME: in sftp we can actually abort the transfer */
1851 printf("\r%-25.25s | %50s\n",
1853 "Write error.. waiting for end of file");
1858 if (time(NULL) > stat_lasttime ||
1859 received + read == act.size) {
1860 stat_lasttime = time(NULL);
1861 print_stats(stat_name, act.size, stat_bytes,
1862 stat_starttime, stat_lasttime);
1868 FILETIME actime, wrtime;
1869 TIME_POSIX_TO_WIN(act.atime, actime);
1870 TIME_POSIX_TO_WIN(act.mtime, wrtime);
1871 SetFileTime(f, NULL, &actime, &wrtime);
1876 run_err("%s: Write error", destfname);
1879 (void) scp_finish_filerecv();
1886 * We will copy local files to a remote server.
1888 static void toremote(int argc, char *argv[])
1890 char *src, *targ, *host, *user;
1894 targ = argv[argc - 1];
1896 /* Separate host from filename */
1900 bump("targ == NULL in toremote()");
1904 /* Substitute "." for emtpy target */
1906 /* Separate host and username */
1908 host = strrchr(host, '@');
1919 /* Find out if the source filespec covers multiple files
1920 if so, we should set the targetshouldbedirectory flag */
1922 WIN32_FIND_DATA fdat;
1923 if (colon(argv[0]) != NULL)
1924 bump("%s: Remote to remote not supported", argv[0]);
1925 fh = FindFirstFile(argv[0], &fdat);
1926 if (fh == INVALID_HANDLE_VALUE)
1927 bump("%s: No such file or directory\n", argv[0]);
1928 if (FindNextFile(fh, &fdat))
1929 targetshouldbedirectory = 1;
1933 cmd = dupprintf("scp%s%s%s%s -t %s",
1934 verbose ? " -v" : "",
1935 recursive ? " -r" : "",
1936 preserve ? " -p" : "",
1937 targetshouldbedirectory ? " -d" : "", targ);
1938 do_cmd(host, user, cmd);
1941 scp_source_setup(targ, targetshouldbedirectory);
1943 for (i = 0; i < argc - 1; i++) {
1944 char *srcpath, *last;
1946 WIN32_FIND_DATA fdat;
1948 if (colon(src) != NULL) {
1949 tell_user(stderr, "%s: Remote to remote not supported\n", src);
1955 * Trim off the last pathname component of `src', to
1956 * provide the base pathname which will be prepended to
1957 * filenames returned from Find{First,Next}File.
1959 srcpath = dupstr(src);
1960 last = stripslashes(srcpath, 1);
1963 dir = FindFirstFile(src, &fdat);
1964 if (dir == INVALID_HANDLE_VALUE) {
1965 run_err("%s: No such file or directory", src);
1971 * Ensure that . and .. are never matched by wildcards,
1972 * but only by deliberate action.
1974 if (!strcmp(fdat.cFileName, ".") ||
1975 !strcmp(fdat.cFileName, "..")) {
1977 * Find*File has returned a special dir. We require
1978 * that _either_ `src' ends in a backslash followed
1979 * by that string, _or_ `src' is precisely that
1982 int len = strlen(src), dlen = strlen(fdat.cFileName);
1983 if (len == dlen && !strcmp(src, fdat.cFileName)) {
1985 } else if (len > dlen + 1 && src[len - dlen - 1] == '\\' &&
1986 !strcmp(src + len - dlen, fdat.cFileName)) {
1989 continue; /* ignore this one */
1991 filename = dupcat(srcpath, fdat.cFileName, NULL);
1994 } while (FindNextFile(dir, &fdat));
2001 * We will copy files from a remote server to the local machine.
2003 static void tolocal(int argc, char *argv[])
2005 char *src, *targ, *host, *user;
2009 bump("More than one remote source not supported");
2014 /* Separate host from filename */
2018 bump("Local to local copy not supported");
2022 /* Substitute "." for empty filename */
2024 /* Separate username and hostname */
2026 host = strrchr(host, '@');
2036 cmd = dupprintf("scp%s%s%s%s -f %s",
2037 verbose ? " -v" : "",
2038 recursive ? " -r" : "",
2039 preserve ? " -p" : "",
2040 targetshouldbedirectory ? " -d" : "", src);
2041 do_cmd(host, user, cmd);
2044 if (scp_sink_setup(src, preserve, recursive))
2051 * We will issue a list command to get a remote directory.
2053 static void get_dir_list(int argc, char *argv[])
2055 char *src, *host, *user;
2061 /* Separate host from filename */
2065 bump("Local to local copy not supported");
2069 /* Substitute "." for empty filename */
2071 /* Separate username and hostname */
2073 host = strrchr(host, '@');
2083 cmd = smalloc(4 * strlen(src) + 100);
2084 strcpy(cmd, "ls -la '");
2085 p = cmd + strlen(cmd);
2086 for (q = src; *q; q++) {
2099 do_cmd(host, user, cmd);
2103 scp_sftp_listdir(src);
2105 while (ssh_scp_recv(&c, 1) > 0)
2106 tell_char(stdout, c);
2111 * Initialize the Win$ock driver.
2113 static void init_winsock(void)
2118 winsock_ver = MAKEWORD(1, 1);
2119 if (WSAStartup(winsock_ver, &wsadata))
2120 bump("Unable to initialise WinSock");
2121 if (LOBYTE(wsadata.wVersion) != 1 || HIBYTE(wsadata.wVersion) != 1)
2122 bump("WinSock version is incompatible with 1.1");
2126 * Short description of parameters.
2128 static void usage(void)
2130 printf("PuTTY Secure Copy client\n");
2131 printf("%s\n", ver);
2132 printf("Usage: pscp [options] [user@]host:source target\n");
2134 (" pscp [options] source [source...] [user@]host:target\n");
2135 printf(" pscp [options] -ls user@host:filespec\n");
2136 printf("Options:\n");
2137 printf(" -p preserve file attributes\n");
2138 printf(" -q quiet, don't show statistics\n");
2139 printf(" -r copy directories recursively\n");
2140 printf(" -v show verbose messages\n");
2141 printf(" -load sessname Load settings from saved session\n");
2142 printf(" -P port connect to specified port\n");
2143 printf(" -l user connect with specified username\n");
2144 printf(" -pw passw login with specified password\n");
2145 printf(" -1 -2 force use of particular SSH protocol version\n");
2146 printf(" -C enable compression\n");
2147 printf(" -i key private key file for authentication\n");
2148 printf(" -batch disable all interactive prompts\n");
2149 printf(" -unsafe allow server-side wildcards (DANGEROUS)\n");
2152 * -gui is an internal option, used by GUI front ends to get
2153 * pscp to pass progress reports back to them. It's not an
2154 * ordinary user-accessible option, so it shouldn't be part of
2155 * the command-line help. The only people who need to know
2156 * about it are programmers, and they can read the source.
2159 (" -gui hWnd GUI mode with the windows handle for receiving messages\n");
2164 void cmdline_error(char *p, ...)
2167 fprintf(stderr, "pscp: ");
2169 vfprintf(stderr, p, ap);
2171 fprintf(stderr, "\n try typing just \"pscp\" for help\n");
2176 * Main program (no, really?)
2178 int main(int argc, char *argv[])
2182 default_protocol = PROT_TELNET;
2184 flags = FLAG_STDERR;
2185 cmdline_tooltype = TOOLTYPE_FILETRANSFER;
2186 ssh_get_line = &console_get_line;
2190 for (i = 1; i < argc; i++) {
2192 if (argv[i][0] != '-')
2194 ret = cmdline_process_param(argv[i], i+1<argc?argv[i+1]:NULL, 1, &cfg);
2196 cmdline_error("option \"%s\" requires an argument", argv[i]);
2197 } else if (ret == 2) {
2198 i++; /* skip next argument */
2199 } else if (ret == 1) {
2200 /* We have our own verbosity in addition to `flags'. */
2201 if (flags & FLAG_VERBOSE)
2203 } else if (strcmp(argv[i], "-r") == 0) {
2205 } else if (strcmp(argv[i], "-p") == 0) {
2207 } else if (strcmp(argv[i], "-q") == 0) {
2209 } else if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "-?") == 0) {
2211 } else if (strcmp(argv[i], "-gui") == 0 && i + 1 < argc) {
2212 gui_hwnd = argv[++i];
2214 console_batch_mode = TRUE;
2215 } else if (strcmp(argv[i], "-ls") == 0) {
2217 } else if (strcmp(argv[i], "-batch") == 0) {
2218 console_batch_mode = 1;
2219 } else if (strcmp(argv[i], "-unsafe") == 0) {
2220 scp_unsafe_mode = 1;
2221 } else if (strcmp(argv[i], "--") == 0) {
2225 cmdline_error("unknown option \"%s\"", argv[i]);
2235 get_dir_list(argc, argv);
2242 targetshouldbedirectory = 1;
2244 if (colon(argv[argc - 1]) != NULL)
2245 toremote(argc, argv);
2247 tolocal(argc, argv);
2250 if (back != NULL && back->socket(backhandle) != NULL) {
2252 back->special(backhandle, TS_EOF);
2253 ssh_scp_recv(&ch, 1);
2258 /* GUI Adaptation - August 2000 */
2260 unsigned int msg_id = WM_RET_ERR_CNT;
2262 msg_id = WM_LS_RET_ERR_CNT;
2264 ((HWND) atoi(gui_hwnd), msg_id, (WPARAM) errs,
2265 0 /*lParam */ ))SleepEx(1000, TRUE);
2267 return (errs == 0 ? 0 : 1);