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);