2 * scp.c - Scp (Secure Copy) client for PuTTY.
3 * Joris van Rantwijk, Aug 1999, Nov 1999.
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.
16 #define PUTTY_DO_GLOBALS
20 #define TIME_POSIX_TO_WIN(t, ft) (*(LONGLONG*)&(ft) = \
21 ((LONGLONG) (t) + (LONGLONG) 11644473600) * (LONGLONG) 10000000)
22 #define TIME_WIN_TO_POSIX(ft, t) ((t) = (unsigned long) \
23 ((*(LONGLONG*)&(ft)) / (LONGLONG) 10000000 - (LONGLONG) 11644473600))
26 static int recursive = 0;
27 static int preserve = 0;
28 static int targetshouldbedirectory = 0;
29 static int statistics = 1;
30 static int portnumber = 0;
31 static char *password = NULL;
33 static int connection_open = 0;
35 static void source(char *src);
36 static void rsource(char *src);
37 static void sink(char *targ);
40 * Print an error message and perform a fatal exit.
42 void fatalbox(char *fmt, ...)
46 fprintf(stderr, "Fatal: ");
47 vfprintf(stderr, fmt, ap);
48 fprintf(stderr, "\n");
54 * Print an error message and exit after closing the SSH link.
56 static void bump(char *fmt, ...)
60 fprintf(stderr, "Fatal: ");
61 vfprintf(stderr, fmt, ap);
62 fprintf(stderr, "\n");
64 if (connection_open) {
72 void ssh_get_password(char *prompt, char *str, int maxlen)
78 strncpy(str, password, maxlen);
84 hin = GetStdHandle(STD_INPUT_HANDLE);
85 hout = GetStdHandle(STD_OUTPUT_HANDLE);
86 if (hin == INVALID_HANDLE_VALUE || hout == INVALID_HANDLE_VALUE)
87 bump("Cannot get standard input/output handles");
89 GetConsoleMode(hin, &savemode);
90 SetConsoleMode(hin, (savemode & (~ENABLE_ECHO_INPUT)) |
91 ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT);
93 WriteFile(hout, prompt, strlen(prompt), &i, NULL);
94 ReadFile(hin, str, maxlen-1, &i, NULL);
96 SetConsoleMode(hin, savemode);
98 if ((int)i > maxlen) i = maxlen-1; else i = i - 2;
101 WriteFile(hout, "\r\n", 2, &i, NULL);
105 * Open an SSH connection to user@host and execute cmd.
107 static void do_cmd(char *host, char *user, char *cmd)
109 char *err, *realhost;
111 if (host == NULL || host[0] == '\0')
112 bump("Empty host name");
114 /* Try to load settings for this host */
116 if (cfg.host[0] == '\0') {
117 /* No settings for this host; use defaults */
118 strncpy(cfg.host, host, sizeof(cfg.host)-1);
119 cfg.host[sizeof(cfg.host)-1] = '\0';
124 if (user != NULL && user[0] != '\0') {
125 strncpy(cfg.username, user, sizeof(cfg.username)-1);
126 cfg.username[sizeof(cfg.username)-1] = '\0';
127 } else if (cfg.username[0] == '\0') {
128 bump("Empty user name");
131 if (cfg.protocol != PROT_SSH)
135 cfg.port = portnumber;
137 err = ssh_init(cfg.host, cfg.port, cmd, &realhost);
139 bump("ssh_init: %s", err);
140 if (verbose && realhost != NULL)
141 fprintf(stderr, "Connected to %s\n", realhost);
147 * Update statistic information about current file.
149 static void print_stats(char *name, unsigned long size, unsigned long done,
150 time_t start, time_t now)
158 ratebs = (float) done / (now - start);
160 ratebs = (float) done;
165 eta = (unsigned long) ((size - done) / ratebs);
166 sprintf(etastr, "%02ld:%02ld:%02ld",
167 eta / 3600, (eta % 3600) / 60, eta % 60);
169 pct = (int) (100.0 * (float) done / size);
171 printf("\r%-25.25s | %10ld kB | %5.1f kB/s | ETA: %8s | %3d%%",
172 name, done / 1024, ratebs / 1024.0,
180 * Find a colon in str and return a pointer to the colon.
181 * This is used to separate hostname from filename.
183 static char * colon(char *str)
185 /* We ignore a leading colon, since the hostname cannot be
186 empty. We also ignore a colon as second character because
187 of filenames like f:myfile.txt. */
188 if (str[0] == '\0' ||
192 while (*str != '\0' &&
204 * Wait for a response from the other side.
205 * Return 0 if ok, -1 if error.
207 static int response(void)
209 char ch, resp, rbuf[2048];
212 if (ssh_recv(&resp, 1) <= 0)
213 bump("Lost connection");
223 case 2: /* fatal error */
225 if (ssh_recv(&ch, 1) <= 0)
226 bump("Protocol error: Lost connection");
228 } while (p < sizeof(rbuf) && ch != '\n');
231 fprintf(stderr, "%s\n", rbuf);
240 * Send an error message to the other side and to the screen.
241 * Increment error counter.
243 static void run_err(const char *fmt, ...)
249 strcpy(str, "\01scp: ");
250 vsprintf(str+strlen(str), fmt, ap);
252 ssh_send(str, strlen(str));
253 vfprintf(stderr, fmt, ap);
254 fprintf(stderr, "\n");
259 * Execute the source part of the SCP protocol.
261 static void source(char *src)
269 unsigned long stat_bytes;
270 time_t stat_starttime, stat_lasttime;
272 attr = GetFileAttributes(src);
273 if (attr == (DWORD)-1) {
274 run_err("%s: No such file or directory", src);
278 if ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0) {
281 * Avoid . and .. directories.
284 p = strrchr(src, '/');
286 p = strrchr(src, '\\');
291 if (!strcmp(p, ".") || !strcmp(p, ".."))
296 run_err("%s: not a regular file", src);
301 if ((last = strrchr(src, '/')) == NULL)
305 if (strrchr(last, '\\') != NULL)
306 last = strrchr(last, '\\') + 1;
307 if (last == src && strchr(src, ':') != NULL)
308 last = strchr(src, ':') + 1;
310 f = CreateFile(src, GENERIC_READ, FILE_SHARE_READ, NULL,
311 OPEN_EXISTING, 0, 0);
312 if (f == INVALID_HANDLE_VALUE) {
313 run_err("%s: Cannot open file", src);
318 FILETIME actime, wrtime;
319 unsigned long mtime, atime;
320 GetFileTime(f, NULL, &actime, &wrtime);
321 TIME_WIN_TO_POSIX(actime, atime);
322 TIME_WIN_TO_POSIX(wrtime, mtime);
323 sprintf(buf, "T%lu 0 %lu 0\n", mtime, atime);
324 ssh_send(buf, strlen(buf));
329 size = GetFileSize(f, NULL);
330 sprintf(buf, "C0644 %lu %s\n", size, last);
332 fprintf(stderr, "Sending file modes: %s", buf);
333 ssh_send(buf, strlen(buf));
339 stat_starttime = time(NULL);
343 for (i = 0; i < size; i += 4096) {
346 if (i + k > size) k = size - i;
347 if (! ReadFile(f, transbuf, k, &j, NULL) || j != k) {
348 if (statistics) printf("\n");
349 bump("%s: Read error", src);
351 ssh_send(transbuf, k);
354 if (time(NULL) != stat_lasttime ||
356 stat_lasttime = time(NULL);
357 print_stats(last, size, stat_bytes,
358 stat_starttime, stat_lasttime);
369 * Recursively send the contents of a directory.
371 static void rsource(char *src)
376 WIN32_FIND_DATA fdat;
379 if ((last = strrchr(src, '/')) == NULL)
383 if (strrchr(last, '\\') != NULL)
384 last = strrchr(last, '\\') + 1;
385 if (last == src && strchr(src, ':') != NULL)
386 last = strchr(src, ':') + 1;
388 /* maybe send filetime */
390 sprintf(buf, "D0755 0 %s\n", last);
392 fprintf(stderr, "Entering directory: %s", buf);
393 ssh_send(buf, strlen(buf));
397 sprintf(buf, "%s/*", src);
398 dir = FindFirstFile(buf, &fdat);
399 ok = (dir != INVALID_HANDLE_VALUE);
401 if (strcmp(fdat.cFileName, ".") == 0 ||
402 strcmp(fdat.cFileName, "..") == 0) {
403 } else if (strlen(src) + 1 + strlen(fdat.cFileName) >=
405 run_err("%s/%s: Name too long", src, fdat.cFileName);
407 sprintf(buf, "%s/%s", src, fdat.cFileName);
410 ok = FindNextFile(dir, &fdat);
415 ssh_send(buf, strlen(buf));
420 * Execute the sink part of the SCP protocol.
422 static void sink(char *targ)
432 unsigned long mtime, atime;
434 unsigned long size, i;
436 unsigned long stat_bytes;
437 time_t stat_starttime, stat_lasttime;
440 attr = GetFileAttributes(targ);
441 if (attr != (DWORD)-1 && (attr & FILE_ATTRIBUTE_DIRECTORY) != 0)
444 if (targetshouldbedirectory && !targisdir)
445 bump("%s: Not a directory", targ);
451 if (ssh_recv(&ch, 1) <= 0)
454 bump("Protocol error: Unexpected newline");
458 if (ssh_recv(&ch, 1) <= 0)
459 bump("Lost connection");
461 } while (i < sizeof(buf) && ch != '\n');
464 case '\01': /* error */
465 fprintf(stderr, "%s\n", buf+1);
468 case '\02': /* fatal error */
474 if (sscanf(buf, "T%ld %*d %ld %*d",
475 &mtime, &atime) == 2) {
480 bump("Protocol error: Illegal time format");
485 bump("Protocol error: Expected control record");
488 if (sscanf(buf+1, "%u %lu %[^\n]", &mode, &size, namebuf) != 3)
489 bump("Protocol error: Illegal file descriptor format");
498 strcpy(namebuf, targ);
500 attr = GetFileAttributes(namebuf);
501 exists = (attr != (DWORD)-1);
504 if (exists && (attr & FILE_ATTRIBUTE_DIRECTORY) == 0) {
505 run_err("%s: Not a directory", namebuf);
509 if (! CreateDirectory(namebuf, NULL)) {
510 run_err("%s: Cannot create directory",
516 /* can we set the timestamp for directories ? */
520 f = CreateFile(namebuf, GENERIC_WRITE, 0, NULL,
521 CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
522 if (f == INVALID_HANDLE_VALUE) {
523 run_err("%s: Cannot create file", namebuf);
531 stat_starttime = time(NULL);
533 if ((stat_name = strrchr(namebuf, '/')) == NULL)
537 if (strrchr(stat_name, '\\') != NULL)
538 stat_name = strrchr(stat_name, '\\') + 1;
541 for (i = 0; i < size; i += 4096) {
544 if (i + k > size) k = size - i;
545 if (ssh_recv(transbuf, k) == 0)
546 bump("Lost connection");
547 if (wrerror) continue;
548 if (! WriteFile(f, transbuf, k, &j, NULL) || j != k) {
551 printf("\r%-25.25s | %50s\n",
553 "Write error.. waiting for end of file");
558 if (time(NULL) > stat_lasttime ||
560 stat_lasttime = time(NULL);
561 print_stats(stat_name, size, stat_bytes,
562 stat_starttime, stat_lasttime);
569 FILETIME actime, wrtime;
570 TIME_POSIX_TO_WIN(atime, actime);
571 TIME_POSIX_TO_WIN(mtime, wrtime);
572 SetFileTime(f, NULL, &actime, &wrtime);
577 run_err("%s: Write error", namebuf);
585 * We will copy local files to a remote server.
587 static void toremote(int argc, char *argv[])
589 char *src, *targ, *host, *user;
595 /* Separate host from filename */
599 bump("targ == NULL in toremote()");
603 /* Substitute "." for emtpy target */
605 /* Separate host and username */
607 host = strrchr(host, '@');
618 /* Find out if the source filespec covers multiple files
619 if so, we should set the targetshouldbedirectory flag */
621 WIN32_FIND_DATA fdat;
622 if (colon(argv[0]) != NULL)
623 bump("%s: Remote to remote not supported", argv[0]);
624 fh = FindFirstFile(argv[0], &fdat);
625 if (fh == INVALID_HANDLE_VALUE)
626 bump("%s: No such file or directory\n", argv[0]);
627 if (FindNextFile(fh, &fdat))
628 targetshouldbedirectory = 1;
632 cmd = smalloc(strlen(targ) + 100);
633 sprintf(cmd, "scp%s%s%s%s -t %s",
634 verbose ? " -v" : "",
635 recursive ? " -r" : "",
636 preserve ? " -p" : "",
637 targetshouldbedirectory ? " -d" : "",
639 do_cmd(host, user, cmd);
644 for (i = 0; i < argc - 1; i++) {
646 WIN32_FIND_DATA fdat;
648 if (colon(src) != NULL) {
650 "%s: Remote to remote not supported\n", src);
654 dir = FindFirstFile(src, &fdat);
655 if (dir == INVALID_HANDLE_VALUE) {
656 run_err("%s: No such file or directory", src);
662 if (strlen(src) + strlen(fdat.cFileName) >=
664 fprintf(stderr, "%s: Name too long", src);
667 strcpy(namebuf, src);
668 if ((last = strrchr(namebuf, '/')) == NULL)
672 if (strrchr(last, '\\') != NULL)
673 last = strrchr(last, '\\') + 1;
674 if (last == namebuf && strrchr(namebuf, ':') != NULL)
675 last = strchr(namebuf, ':') + 1;
676 strcpy(last, fdat.cFileName);
678 } while (FindNextFile(dir, &fdat));
684 * We will copy files from a remote server to the local machine.
686 static void tolocal(int argc, char *argv[])
688 char *src, *targ, *host, *user;
692 bump("More than one remote source not supported");
697 /* Separate host from filename */
701 bump("Local to local copy not supported");
705 /* Substitute "." for empty filename */
707 /* Separate username and hostname */
709 host = strrchr(host, '@');
719 cmd = smalloc(strlen(src) + 100);
720 sprintf(cmd, "scp%s%s%s%s -f %s",
721 verbose ? " -v" : "",
722 recursive ? " -r" : "",
723 preserve ? " -p" : "",
724 targetshouldbedirectory ? " -d" : "",
726 do_cmd(host, user, cmd);
733 * We will issue a list command to get a remote directory.
735 static void get_dir_list(int argc, char *argv[])
737 char *src, *host, *user;
743 /* Separate host from filename */
747 bump("Local to local copy not supported");
751 /* Substitute "." for empty filename */
753 /* Separate username and hostname */
755 host = strrchr(host, '@');
765 cmd = smalloc(4*strlen(src) + 100);
766 strcpy(cmd, "ls -la '");
767 p = cmd + strlen(cmd);
768 for (q = src; *q; q++) {
770 *p++ = '\''; *p++ = '\\'; *p++ = '\''; *p++ = '\'';
778 do_cmd(host, user, cmd);
781 while (ssh_recv(&c, 1) > 0)
782 fputc(c, stdout); /* thank heavens for buffered I/O */
786 * Initialize the Win$ock driver.
788 static void init_winsock(void)
793 winsock_ver = MAKEWORD(1, 1);
794 if (WSAStartup(winsock_ver, &wsadata))
795 bump("Unable to initialise WinSock");
796 if (LOBYTE(wsadata.wVersion) != 1 ||
797 HIBYTE(wsadata.wVersion) != 1)
798 bump("WinSock version is incompatible with 1.1");
802 * Short description of parameters.
804 static void usage(void)
806 printf("PuTTY Secure Copy client\n");
808 printf("Usage: scp [options] [user@]host:source target\n");
809 printf(" scp [options] source [source...] [user@]host:target\n");
810 printf("Options:\n");
811 printf(" -p preserve file attributes\n");
812 printf(" -q quiet, don't show statistics\n");
813 printf(" -r copy directories recursively\n");
814 printf(" -v show verbose messages\n");
815 printf(" -P port connect to specified port\n");
816 printf(" -pw passw login with specified password\n");
821 * Main program (no, really?)
823 int main(int argc, char *argv[])
830 for (i = 1; i < argc; i++) {
831 if (argv[i][0] != '-')
833 if (strcmp(argv[i], "-v") == 0)
835 else if (strcmp(argv[i], "-r") == 0)
837 else if (strcmp(argv[i], "-p") == 0)
839 else if (strcmp(argv[i], "-q") == 0)
841 else if (strcmp(argv[i], "-h") == 0 ||
842 strcmp(argv[i], "-?") == 0)
844 else if (strcmp(argv[i], "-P") == 0 && i+1 < argc)
845 portnumber = atoi(argv[++i]);
846 else if (strcmp(argv[i], "-pw") == 0 && i+1 < argc)
847 password = argv[++i];
848 else if (strcmp(argv[i], "-ls") == 0)
850 else if (strcmp(argv[i], "--") == 0)
861 get_dir_list(argc, argv);
868 targetshouldbedirectory = 1;
870 if (colon(argv[argc-1]) != NULL)
871 toremote(argc, argv);
876 if (connection_open) {
884 return (errs == 0 ? 0 : 1);