4c7f0d61 |
1 | /* |
2 | * psftp.c: front end for PSFTP. |
3 | */ |
4 | |
4a8fc3c4 |
5 | #include <windows.h> |
6 | |
4c7f0d61 |
7 | #include <stdio.h> |
8 | #include <stdlib.h> |
f9e162aa |
9 | #include <stdarg.h> |
4c7f0d61 |
10 | #include <assert.h> |
d92624dc |
11 | #include <limits.h> |
4c7f0d61 |
12 | |
4a8fc3c4 |
13 | #define PUTTY_DO_GLOBALS |
14 | #include "putty.h" |
15 | #include "storage.h" |
16 | #include "ssh.h" |
4c7f0d61 |
17 | #include "sftp.h" |
18 | #include "int64.h" |
19 | |
5471d09a |
20 | /* |
21 | * Since SFTP is a request-response oriented protocol, it requires |
22 | * no buffer management: when we send data, we stop and wait for an |
23 | * acknowledgement _anyway_, and so we can't possibly overfill our |
24 | * send buffer. |
25 | */ |
26 | |
fa3db767 |
27 | static int psftp_connect(char *userhost, char *user, int portnumber); |
28 | static void do_sftp_init(void); |
29 | |
4c7f0d61 |
30 | /* ---------------------------------------------------------------------- |
4c7f0d61 |
31 | * sftp client state. |
32 | */ |
33 | |
34 | char *pwd, *homedir; |
35 | |
36 | /* ---------------------------------------------------------------------- |
37 | * Higher-level helper functions used in commands. |
38 | */ |
39 | |
40 | /* |
f9e162aa |
41 | * Attempt to canonify a pathname starting from the pwd. If |
42 | * canonification fails, at least fall back to returning a _valid_ |
43 | * pathname (though it may be ugly, eg /home/simon/../foobar). |
4c7f0d61 |
44 | */ |
32874aea |
45 | char *canonify(char *name) |
46 | { |
f9e162aa |
47 | char *fullname, *canonname; |
4a8fc3c4 |
48 | |
f9e162aa |
49 | if (name[0] == '/') { |
50 | fullname = dupstr(name); |
51 | } else { |
4a8fc3c4 |
52 | char *slash; |
32874aea |
53 | if (pwd[strlen(pwd) - 1] == '/') |
4a8fc3c4 |
54 | slash = ""; |
55 | else |
56 | slash = "/"; |
57 | fullname = dupcat(pwd, slash, name, NULL); |
f9e162aa |
58 | } |
4a8fc3c4 |
59 | |
60 | canonname = fxp_realpath(fullname); |
61 | |
f9e162aa |
62 | if (canonname) { |
63 | sfree(fullname); |
64 | return canonname; |
50d7e054 |
65 | } else { |
32874aea |
66 | /* |
67 | * Attempt number 2. Some FXP_REALPATH implementations |
68 | * (glibc-based ones, in particular) require the _whole_ |
69 | * path to point to something that exists, whereas others |
70 | * (BSD-based) only require all but the last component to |
71 | * exist. So if the first call failed, we should strip off |
72 | * everything from the last slash onwards and try again, |
73 | * then put the final component back on. |
74 | * |
75 | * Special cases: |
76 | * |
77 | * - if the last component is "/." or "/..", then we don't |
78 | * bother trying this because there's no way it can work. |
79 | * |
80 | * - if the thing actually ends with a "/", we remove it |
81 | * before we start. Except if the string is "/" itself |
82 | * (although I can't see why we'd have got here if so, |
83 | * because surely "/" would have worked the first |
84 | * time?), in which case we don't bother. |
85 | * |
86 | * - if there's no slash in the string at all, give up in |
87 | * confusion (we expect at least one because of the way |
88 | * we constructed the string). |
89 | */ |
90 | |
91 | int i; |
92 | char *returnname; |
93 | |
94 | i = strlen(fullname); |
95 | if (i > 2 && fullname[i - 1] == '/') |
96 | fullname[--i] = '\0'; /* strip trailing / unless at pos 0 */ |
97 | while (i > 0 && fullname[--i] != '/'); |
98 | |
99 | /* |
100 | * Give up on special cases. |
101 | */ |
102 | if (fullname[i] != '/' || /* no slash at all */ |
103 | !strcmp(fullname + i, "/.") || /* ends in /. */ |
104 | !strcmp(fullname + i, "/..") || /* ends in /.. */ |
105 | !strcmp(fullname, "/")) { |
106 | return fullname; |
107 | } |
108 | |
109 | /* |
110 | * Now i points at the slash. Deal with the final special |
111 | * case i==0 (ie the whole path was "/nonexistentfile"). |
112 | */ |
113 | fullname[i] = '\0'; /* separate the string */ |
114 | if (i == 0) { |
115 | canonname = fxp_realpath("/"); |
116 | } else { |
117 | canonname = fxp_realpath(fullname); |
118 | } |
119 | |
120 | if (!canonname) |
121 | return fullname; /* even that failed; give up */ |
122 | |
123 | /* |
124 | * We have a canonical name for all but the last path |
125 | * component. Concatenate the last component and return. |
126 | */ |
127 | returnname = dupcat(canonname, |
128 | canonname[strlen(canonname) - 1] == |
129 | '/' ? "" : "/", fullname + i + 1, NULL); |
130 | sfree(fullname); |
131 | sfree(canonname); |
132 | return returnname; |
50d7e054 |
133 | } |
4c7f0d61 |
134 | } |
135 | |
dcf8495c |
136 | /* |
137 | * Return a pointer to the portion of str that comes after the last |
138 | * slash (or backslash or colon, if `local' is TRUE). |
139 | */ |
140 | static char *stripslashes(char *str, int local) |
141 | { |
142 | char *p; |
143 | |
144 | if (local) { |
145 | p = strchr(str, ':'); |
146 | if (p) str = p+1; |
147 | } |
148 | |
149 | p = strrchr(str, '/'); |
150 | if (p) str = p+1; |
151 | |
152 | if (local) { |
153 | p = strrchr(str, '\\'); |
154 | if (p) str = p+1; |
155 | } |
156 | |
157 | return str; |
158 | } |
159 | |
4c7f0d61 |
160 | /* ---------------------------------------------------------------------- |
161 | * Actual sftp commands. |
162 | */ |
163 | struct sftp_command { |
164 | char **words; |
165 | int nwords, wordssize; |
32874aea |
166 | int (*obey) (struct sftp_command *); /* returns <0 to quit */ |
4c7f0d61 |
167 | }; |
168 | |
32874aea |
169 | int sftp_cmd_null(struct sftp_command *cmd) |
170 | { |
4c7f0d61 |
171 | return 0; |
172 | } |
173 | |
32874aea |
174 | int sftp_cmd_unknown(struct sftp_command *cmd) |
175 | { |
4c7f0d61 |
176 | printf("psftp: unknown command \"%s\"\n", cmd->words[0]); |
177 | return 0; |
178 | } |
179 | |
32874aea |
180 | int sftp_cmd_quit(struct sftp_command *cmd) |
181 | { |
4c7f0d61 |
182 | return -1; |
183 | } |
184 | |
185 | /* |
186 | * List a directory. If no arguments are given, list pwd; otherwise |
187 | * list the directory given in words[1]. |
188 | */ |
32874aea |
189 | static int sftp_ls_compare(const void *av, const void *bv) |
190 | { |
191 | const struct fxp_name *a = (const struct fxp_name *) av; |
192 | const struct fxp_name *b = (const struct fxp_name *) bv; |
4c7f0d61 |
193 | return strcmp(a->filename, b->filename); |
194 | } |
32874aea |
195 | int sftp_cmd_ls(struct sftp_command *cmd) |
196 | { |
4c7f0d61 |
197 | struct fxp_handle *dirh; |
198 | struct fxp_names *names; |
199 | struct fxp_name *ournames; |
200 | int nnames, namesize; |
201 | char *dir, *cdir; |
202 | int i; |
203 | |
fa3db767 |
204 | if (back == NULL) { |
205 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
206 | return 0; |
207 | } |
208 | |
4c7f0d61 |
209 | if (cmd->nwords < 2) |
210 | dir = "."; |
211 | else |
212 | dir = cmd->words[1]; |
213 | |
214 | cdir = canonify(dir); |
215 | if (!cdir) { |
216 | printf("%s: %s\n", dir, fxp_error()); |
217 | return 0; |
218 | } |
219 | |
220 | printf("Listing directory %s\n", cdir); |
221 | |
222 | dirh = fxp_opendir(cdir); |
223 | if (dirh == NULL) { |
224 | printf("Unable to open %s: %s\n", dir, fxp_error()); |
225 | } else { |
226 | nnames = namesize = 0; |
227 | ournames = NULL; |
228 | |
229 | while (1) { |
230 | |
231 | names = fxp_readdir(dirh); |
232 | if (names == NULL) { |
233 | if (fxp_error_type() == SSH_FX_EOF) |
234 | break; |
235 | printf("Reading directory %s: %s\n", dir, fxp_error()); |
236 | break; |
237 | } |
238 | if (names->nnames == 0) { |
239 | fxp_free_names(names); |
240 | break; |
241 | } |
242 | |
243 | if (nnames + names->nnames >= namesize) { |
244 | namesize += names->nnames + 128; |
32874aea |
245 | ournames = |
246 | srealloc(ournames, namesize * sizeof(*ournames)); |
4c7f0d61 |
247 | } |
248 | |
249 | for (i = 0; i < names->nnames; i++) |
250 | ournames[nnames++] = names->names[i]; |
251 | |
252 | names->nnames = 0; /* prevent free_names */ |
253 | fxp_free_names(names); |
254 | } |
255 | fxp_close(dirh); |
256 | |
257 | /* |
258 | * Now we have our filenames. Sort them by actual file |
259 | * name, and then output the longname parts. |
260 | */ |
261 | qsort(ournames, nnames, sizeof(*ournames), sftp_ls_compare); |
262 | |
263 | /* |
264 | * And print them. |
265 | */ |
266 | for (i = 0; i < nnames; i++) |
267 | printf("%s\n", ournames[i].longname); |
268 | } |
269 | |
270 | sfree(cdir); |
271 | |
272 | return 0; |
273 | } |
274 | |
275 | /* |
276 | * Change directories. We do this by canonifying the new name, then |
277 | * trying to OPENDIR it. Only if that succeeds do we set the new pwd. |
278 | */ |
32874aea |
279 | int sftp_cmd_cd(struct sftp_command *cmd) |
280 | { |
4c7f0d61 |
281 | struct fxp_handle *dirh; |
282 | char *dir; |
283 | |
fa3db767 |
284 | if (back == NULL) { |
285 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
286 | return 0; |
287 | } |
288 | |
4c7f0d61 |
289 | if (cmd->nwords < 2) |
f9e162aa |
290 | dir = dupstr(homedir); |
4c7f0d61 |
291 | else |
292 | dir = canonify(cmd->words[1]); |
293 | |
294 | if (!dir) { |
295 | printf("%s: %s\n", dir, fxp_error()); |
296 | return 0; |
297 | } |
298 | |
299 | dirh = fxp_opendir(dir); |
300 | if (!dirh) { |
301 | printf("Directory %s: %s\n", dir, fxp_error()); |
302 | sfree(dir); |
303 | return 0; |
304 | } |
305 | |
306 | fxp_close(dirh); |
307 | |
308 | sfree(pwd); |
309 | pwd = dir; |
310 | printf("Remote directory is now %s\n", pwd); |
311 | |
312 | return 0; |
313 | } |
314 | |
315 | /* |
4f2b387f |
316 | * Print current directory. Easy as pie. |
317 | */ |
318 | int sftp_cmd_pwd(struct sftp_command *cmd) |
319 | { |
fa3db767 |
320 | if (back == NULL) { |
321 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
322 | return 0; |
323 | } |
324 | |
4f2b387f |
325 | printf("Remote directory is %s\n", pwd); |
326 | return 0; |
327 | } |
328 | |
329 | /* |
d92624dc |
330 | * Get a file and save it at the local end. We have two very |
331 | * similar commands here: `get' and `reget', which differ in that |
332 | * `reget' checks for the existence of the destination file and |
333 | * starts from where a previous aborted transfer left off. |
4c7f0d61 |
334 | */ |
d92624dc |
335 | int sftp_general_get(struct sftp_command *cmd, int restart) |
32874aea |
336 | { |
4c7f0d61 |
337 | struct fxp_handle *fh; |
338 | char *fname, *outfname; |
339 | uint64 offset; |
340 | FILE *fp; |
341 | |
fa3db767 |
342 | if (back == NULL) { |
343 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
344 | return 0; |
345 | } |
346 | |
4c7f0d61 |
347 | if (cmd->nwords < 2) { |
348 | printf("get: expects a filename\n"); |
349 | return 0; |
350 | } |
351 | |
352 | fname = canonify(cmd->words[1]); |
353 | if (!fname) { |
354 | printf("%s: %s\n", cmd->words[1], fxp_error()); |
355 | return 0; |
356 | } |
dcf8495c |
357 | outfname = (cmd->nwords == 2 ? |
358 | stripslashes(cmd->words[1], 0) : cmd->words[2]); |
4c7f0d61 |
359 | |
360 | fh = fxp_open(fname, SSH_FXF_READ); |
361 | if (!fh) { |
362 | printf("%s: %s\n", fname, fxp_error()); |
363 | sfree(fname); |
364 | return 0; |
365 | } |
d92624dc |
366 | |
367 | if (restart) { |
368 | fp = fopen(outfname, "rb+"); |
369 | } else { |
370 | fp = fopen(outfname, "wb"); |
371 | } |
372 | |
4c7f0d61 |
373 | if (!fp) { |
374 | printf("local: unable to open %s\n", outfname); |
32874aea |
375 | fxp_close(fh); |
4c7f0d61 |
376 | sfree(fname); |
377 | return 0; |
378 | } |
379 | |
d92624dc |
380 | if (restart) { |
381 | long posn; |
382 | fseek(fp, 0L, SEEK_END); |
383 | posn = ftell(fp); |
384 | printf("reget: restarting at file position %ld\n", posn); |
385 | offset = uint64_make(0, posn); |
386 | } else { |
387 | offset = uint64_make(0, 0); |
388 | } |
4c7f0d61 |
389 | |
d92624dc |
390 | printf("remote:%s => local:%s\n", fname, outfname); |
4c7f0d61 |
391 | |
392 | /* |
393 | * FIXME: we can use FXP_FSTAT here to get the file size, and |
394 | * thus put up a progress bar. |
395 | */ |
396 | while (1) { |
397 | char buffer[4096]; |
398 | int len; |
399 | int wpos, wlen; |
400 | |
401 | len = fxp_read(fh, buffer, offset, sizeof(buffer)); |
32874aea |
402 | if ((len == -1 && fxp_error_type() == SSH_FX_EOF) || len == 0) |
4c7f0d61 |
403 | break; |
404 | if (len == -1) { |
405 | printf("error while reading: %s\n", fxp_error()); |
406 | break; |
407 | } |
32874aea |
408 | |
4c7f0d61 |
409 | wpos = 0; |
410 | while (wpos < len) { |
32874aea |
411 | wlen = fwrite(buffer, 1, len - wpos, fp); |
4c7f0d61 |
412 | if (wlen <= 0) { |
413 | printf("error while writing local file\n"); |
414 | break; |
415 | } |
416 | wpos += wlen; |
417 | } |
418 | if (wpos < len) /* we had an error */ |
419 | break; |
420 | offset = uint64_add32(offset, len); |
421 | } |
422 | |
423 | fclose(fp); |
424 | fxp_close(fh); |
425 | sfree(fname); |
426 | |
427 | return 0; |
428 | } |
d92624dc |
429 | int sftp_cmd_get(struct sftp_command *cmd) |
430 | { |
431 | return sftp_general_get(cmd, 0); |
432 | } |
433 | int sftp_cmd_reget(struct sftp_command *cmd) |
434 | { |
435 | return sftp_general_get(cmd, 1); |
436 | } |
4c7f0d61 |
437 | |
438 | /* |
d92624dc |
439 | * Send a file and store it at the remote end. We have two very |
440 | * similar commands here: `put' and `reput', which differ in that |
441 | * `reput' checks for the existence of the destination file and |
442 | * starts from where a previous aborted transfer left off. |
4c7f0d61 |
443 | */ |
d92624dc |
444 | int sftp_general_put(struct sftp_command *cmd, int restart) |
32874aea |
445 | { |
4c7f0d61 |
446 | struct fxp_handle *fh; |
447 | char *fname, *origoutfname, *outfname; |
448 | uint64 offset; |
449 | FILE *fp; |
450 | |
fa3db767 |
451 | if (back == NULL) { |
452 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
453 | return 0; |
454 | } |
455 | |
4c7f0d61 |
456 | if (cmd->nwords < 2) { |
457 | printf("put: expects a filename\n"); |
458 | return 0; |
459 | } |
460 | |
461 | fname = cmd->words[1]; |
dcf8495c |
462 | origoutfname = (cmd->nwords == 2 ? |
463 | stripslashes(cmd->words[1], 1) : cmd->words[2]); |
4c7f0d61 |
464 | outfname = canonify(origoutfname); |
f9e162aa |
465 | if (!outfname) { |
4c7f0d61 |
466 | printf("%s: %s\n", origoutfname, fxp_error()); |
467 | return 0; |
468 | } |
469 | |
470 | fp = fopen(fname, "rb"); |
471 | if (!fp) { |
472 | printf("local: unable to open %s\n", fname); |
4c7f0d61 |
473 | sfree(outfname); |
474 | return 0; |
475 | } |
d92624dc |
476 | if (restart) { |
477 | fh = fxp_open(outfname, |
478 | SSH_FXF_WRITE); |
479 | } else { |
480 | fh = fxp_open(outfname, |
481 | SSH_FXF_WRITE | SSH_FXF_CREAT | SSH_FXF_TRUNC); |
482 | } |
4c7f0d61 |
483 | if (!fh) { |
484 | printf("%s: %s\n", outfname, fxp_error()); |
485 | sfree(outfname); |
486 | return 0; |
487 | } |
488 | |
d92624dc |
489 | if (restart) { |
490 | char decbuf[30]; |
491 | struct fxp_attrs attrs; |
492 | if (!fxp_fstat(fh, &attrs)) { |
493 | printf("read size of %s: %s\n", outfname, fxp_error()); |
494 | sfree(outfname); |
495 | return 0; |
496 | } |
497 | if (!(attrs.flags & SSH_FILEXFER_ATTR_SIZE)) { |
498 | printf("read size of %s: size was not given\n", outfname); |
499 | sfree(outfname); |
500 | return 0; |
501 | } |
502 | offset = attrs.size; |
503 | uint64_decimal(offset, decbuf); |
504 | printf("reput: restarting at file position %s\n", decbuf); |
505 | if (uint64_compare(offset, uint64_make(0, LONG_MAX)) > 0) { |
506 | printf("reput: remote file is larger than we can deal with\n"); |
507 | sfree(outfname); |
508 | return 0; |
509 | } |
510 | if (fseek(fp, offset.lo, SEEK_SET) != 0) |
511 | fseek(fp, 0, SEEK_END); /* *shrug* */ |
512 | } else { |
513 | offset = uint64_make(0, 0); |
514 | } |
4c7f0d61 |
515 | |
d92624dc |
516 | printf("local:%s => remote:%s\n", fname, outfname); |
4c7f0d61 |
517 | |
518 | /* |
519 | * FIXME: we can use FXP_FSTAT here to get the file size, and |
520 | * thus put up a progress bar. |
521 | */ |
522 | while (1) { |
523 | char buffer[4096]; |
524 | int len; |
525 | |
f9e162aa |
526 | len = fread(buffer, 1, sizeof(buffer), fp); |
4c7f0d61 |
527 | if (len == -1) { |
528 | printf("error while reading local file\n"); |
529 | break; |
530 | } else if (len == 0) { |
531 | break; |
532 | } |
f9e162aa |
533 | if (!fxp_write(fh, buffer, offset, len)) { |
4c7f0d61 |
534 | printf("error while writing: %s\n", fxp_error()); |
535 | break; |
536 | } |
537 | offset = uint64_add32(offset, len); |
538 | } |
539 | |
540 | fxp_close(fh); |
541 | fclose(fp); |
542 | sfree(outfname); |
543 | |
544 | return 0; |
545 | } |
d92624dc |
546 | int sftp_cmd_put(struct sftp_command *cmd) |
547 | { |
548 | return sftp_general_put(cmd, 0); |
549 | } |
550 | int sftp_cmd_reput(struct sftp_command *cmd) |
551 | { |
552 | return sftp_general_put(cmd, 1); |
553 | } |
4c7f0d61 |
554 | |
9954aaa3 |
555 | int sftp_cmd_mkdir(struct sftp_command *cmd) |
556 | { |
557 | char *dir; |
558 | int result; |
559 | |
fa3db767 |
560 | if (back == NULL) { |
561 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
562 | return 0; |
563 | } |
9954aaa3 |
564 | |
565 | if (cmd->nwords < 2) { |
566 | printf("mkdir: expects a directory\n"); |
567 | return 0; |
568 | } |
569 | |
570 | dir = canonify(cmd->words[1]); |
571 | if (!dir) { |
572 | printf("%s: %s\n", dir, fxp_error()); |
573 | return 0; |
574 | } |
575 | |
576 | result = fxp_mkdir(dir); |
577 | if (!result) { |
578 | printf("mkdir %s: %s\n", dir, fxp_error()); |
579 | sfree(dir); |
580 | return 0; |
581 | } |
582 | |
d92624dc |
583 | sfree(dir); |
584 | return 0; |
9954aaa3 |
585 | } |
586 | |
587 | int sftp_cmd_rmdir(struct sftp_command *cmd) |
588 | { |
589 | char *dir; |
590 | int result; |
591 | |
fa3db767 |
592 | if (back == NULL) { |
593 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
594 | return 0; |
595 | } |
9954aaa3 |
596 | |
597 | if (cmd->nwords < 2) { |
598 | printf("rmdir: expects a directory\n"); |
599 | return 0; |
600 | } |
601 | |
602 | dir = canonify(cmd->words[1]); |
603 | if (!dir) { |
604 | printf("%s: %s\n", dir, fxp_error()); |
605 | return 0; |
606 | } |
607 | |
608 | result = fxp_rmdir(dir); |
609 | if (!result) { |
610 | printf("rmdir %s: %s\n", dir, fxp_error()); |
611 | sfree(dir); |
612 | return 0; |
613 | } |
614 | |
d92624dc |
615 | sfree(dir); |
616 | return 0; |
9954aaa3 |
617 | } |
618 | |
619 | int sftp_cmd_rm(struct sftp_command *cmd) |
620 | { |
621 | char *fname; |
622 | int result; |
623 | |
fa3db767 |
624 | if (back == NULL) { |
625 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
626 | return 0; |
627 | } |
628 | |
9954aaa3 |
629 | if (cmd->nwords < 2) { |
630 | printf("rm: expects a filename\n"); |
631 | return 0; |
632 | } |
633 | |
634 | fname = canonify(cmd->words[1]); |
635 | if (!fname) { |
636 | printf("%s: %s\n", fname, fxp_error()); |
637 | return 0; |
638 | } |
639 | |
d92624dc |
640 | result = fxp_remove(fname); |
9954aaa3 |
641 | if (!result) { |
642 | printf("rm %s: %s\n", fname, fxp_error()); |
643 | sfree(fname); |
644 | return 0; |
645 | } |
646 | |
d92624dc |
647 | sfree(fname); |
648 | return 0; |
649 | |
650 | } |
651 | |
652 | int sftp_cmd_mv(struct sftp_command *cmd) |
653 | { |
654 | char *srcfname, *dstfname; |
655 | int result; |
656 | |
fa3db767 |
657 | if (back == NULL) { |
658 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
659 | return 0; |
660 | } |
661 | |
d92624dc |
662 | if (cmd->nwords < 3) { |
663 | printf("mv: expects two filenames\n"); |
9954aaa3 |
664 | return 0; |
d92624dc |
665 | } |
666 | srcfname = canonify(cmd->words[1]); |
667 | if (!srcfname) { |
668 | printf("%s: %s\n", srcfname, fxp_error()); |
669 | return 0; |
670 | } |
671 | |
672 | dstfname = canonify(cmd->words[2]); |
673 | if (!dstfname) { |
674 | printf("%s: %s\n", dstfname, fxp_error()); |
675 | return 0; |
676 | } |
9954aaa3 |
677 | |
d92624dc |
678 | result = fxp_rename(srcfname, dstfname); |
679 | if (!result) { |
680 | char const *error = fxp_error(); |
681 | struct fxp_attrs attrs; |
682 | |
683 | /* |
684 | * The move might have failed because dstfname pointed at a |
685 | * directory. We check this possibility now: if dstfname |
686 | * _is_ a directory, we re-attempt the move by appending |
687 | * the basename of srcfname to dstfname. |
688 | */ |
689 | result = fxp_stat(dstfname, &attrs); |
690 | if (result && |
691 | (attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) && |
692 | (attrs.permissions & 0040000)) { |
693 | char *p; |
694 | char *newname, *newcanon; |
695 | printf("(destination %s is a directory)\n", dstfname); |
696 | p = srcfname + strlen(srcfname); |
697 | while (p > srcfname && p[-1] != '/') p--; |
698 | newname = dupcat(dstfname, "/", p, NULL); |
699 | newcanon = canonify(newname); |
700 | sfree(newname); |
701 | if (newcanon) { |
702 | sfree(dstfname); |
703 | dstfname = newcanon; |
704 | result = fxp_rename(srcfname, dstfname); |
705 | error = result ? NULL : fxp_error(); |
706 | } |
707 | } |
708 | if (error) { |
709 | printf("mv %s %s: %s\n", srcfname, dstfname, error); |
710 | sfree(srcfname); |
711 | sfree(dstfname); |
712 | return 0; |
713 | } |
714 | } |
715 | printf("%s -> %s\n", srcfname, dstfname); |
716 | |
717 | sfree(srcfname); |
718 | sfree(dstfname); |
719 | return 0; |
9954aaa3 |
720 | } |
721 | |
d92624dc |
722 | int sftp_cmd_chmod(struct sftp_command *cmd) |
723 | { |
724 | char *fname, *mode; |
725 | int result; |
726 | struct fxp_attrs attrs; |
727 | unsigned attrs_clr, attrs_xor, oldperms, newperms; |
728 | |
fa3db767 |
729 | if (back == NULL) { |
730 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
731 | return 0; |
732 | } |
733 | |
d92624dc |
734 | if (cmd->nwords < 3) { |
735 | printf("chmod: expects a mode specifier and a filename\n"); |
736 | return 0; |
737 | } |
738 | |
739 | /* |
740 | * Attempt to parse the mode specifier in cmd->words[1]. We |
741 | * don't support the full horror of Unix chmod; instead we |
742 | * support a much simpler syntax in which the user can either |
743 | * specify an octal number, or a comma-separated sequence of |
744 | * [ugoa]*[-+=][rwxst]+. (The initial [ugoa] sequence may |
745 | * _only_ be omitted if the only attribute mentioned is t, |
746 | * since all others require a user/group/other specification. |
747 | * Additionally, the s attribute may not be specified for any |
748 | * [ugoa] specifications other than exactly u or exactly g. |
749 | */ |
750 | attrs_clr = attrs_xor = 0; |
751 | mode = cmd->words[1]; |
752 | if (mode[0] >= '0' && mode[0] <= '9') { |
753 | if (mode[strspn(mode, "01234567")]) { |
754 | printf("chmod: numeric file modes should" |
755 | " contain digits 0-7 only\n"); |
756 | return 0; |
757 | } |
758 | attrs_clr = 07777; |
759 | sscanf(mode, "%o", &attrs_xor); |
760 | attrs_xor &= attrs_clr; |
761 | } else { |
762 | while (*mode) { |
763 | char *modebegin = mode; |
764 | unsigned subset, perms; |
765 | int action; |
766 | |
767 | subset = 0; |
768 | while (*mode && *mode != ',' && |
769 | *mode != '+' && *mode != '-' && *mode != '=') { |
770 | switch (*mode) { |
771 | case 'u': subset |= 04700; break; /* setuid, user perms */ |
772 | case 'g': subset |= 02070; break; /* setgid, group perms */ |
773 | case 'o': subset |= 00007; break; /* just other perms */ |
774 | case 'a': subset |= 06777; break; /* all of the above */ |
775 | default: |
776 | printf("chmod: file mode '%.*s' contains unrecognised" |
777 | " user/group/other specifier '%c'\n", |
778 | strcspn(modebegin, ","), modebegin, *mode); |
779 | return 0; |
780 | } |
781 | mode++; |
782 | } |
783 | if (!*mode || *mode == ',') { |
784 | printf("chmod: file mode '%.*s' is incomplete\n", |
785 | strcspn(modebegin, ","), modebegin); |
786 | return 0; |
787 | } |
788 | action = *mode++; |
789 | if (!*mode || *mode == ',') { |
790 | printf("chmod: file mode '%.*s' is incomplete\n", |
791 | strcspn(modebegin, ","), modebegin); |
792 | return 0; |
793 | } |
794 | perms = 0; |
795 | while (*mode && *mode != ',') { |
796 | switch (*mode) { |
797 | case 'r': perms |= 00444; break; |
798 | case 'w': perms |= 00222; break; |
799 | case 'x': perms |= 00111; break; |
800 | case 't': perms |= 01000; subset |= 01000; break; |
801 | case 's': |
802 | if ((subset & 06777) != 04700 && |
803 | (subset & 06777) != 02070) { |
804 | printf("chmod: file mode '%.*s': set[ug]id bit should" |
805 | " be used with exactly one of u or g only\n", |
806 | strcspn(modebegin, ","), modebegin); |
807 | return 0; |
808 | } |
809 | perms |= 06000; |
810 | break; |
811 | default: |
812 | printf("chmod: file mode '%.*s' contains unrecognised" |
813 | " permission specifier '%c'\n", |
814 | strcspn(modebegin, ","), modebegin, *mode); |
815 | return 0; |
816 | } |
817 | mode++; |
818 | } |
819 | if (!(subset & 06777) && (perms &~ subset)) { |
820 | printf("chmod: file mode '%.*s' contains no user/group/other" |
821 | " specifier and permissions other than 't' \n", |
822 | strcspn(modebegin, ","), modebegin, *mode); |
823 | return 0; |
824 | } |
825 | perms &= subset; |
826 | switch (action) { |
827 | case '+': |
828 | attrs_clr |= perms; |
829 | attrs_xor |= perms; |
830 | break; |
831 | case '-': |
832 | attrs_clr |= perms; |
833 | attrs_xor &= ~perms; |
834 | break; |
835 | case '=': |
836 | attrs_clr |= subset; |
837 | attrs_xor |= perms; |
838 | break; |
839 | } |
840 | if (*mode) mode++; /* eat comma */ |
841 | } |
842 | } |
843 | |
844 | fname = canonify(cmd->words[2]); |
845 | if (!fname) { |
846 | printf("%s: %s\n", fname, fxp_error()); |
847 | return 0; |
848 | } |
849 | |
850 | result = fxp_stat(fname, &attrs); |
851 | if (!result || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS)) { |
852 | printf("get attrs for %s: %s\n", fname, |
853 | result ? "file permissions not provided" : fxp_error()); |
854 | sfree(fname); |
855 | return 0; |
856 | } |
857 | |
858 | attrs.flags = SSH_FILEXFER_ATTR_PERMISSIONS; /* perms _only_ */ |
859 | oldperms = attrs.permissions & 07777; |
860 | attrs.permissions &= ~attrs_clr; |
861 | attrs.permissions ^= attrs_xor; |
862 | newperms = attrs.permissions & 07777; |
863 | |
864 | result = fxp_setstat(fname, attrs); |
865 | |
866 | if (!result) { |
867 | printf("set attrs for %s: %s\n", fname, fxp_error()); |
868 | sfree(fname); |
869 | return 0; |
870 | } |
871 | |
872 | printf("%s: %04o -> %04o\n", fname, oldperms, newperms); |
873 | |
874 | sfree(fname); |
875 | return 0; |
876 | } |
9954aaa3 |
877 | |
fa3db767 |
878 | static int sftp_cmd_open(struct sftp_command *cmd) |
879 | { |
880 | if (back != NULL) { |
881 | printf("psftp: already connected\n"); |
882 | return 0; |
883 | } |
884 | |
885 | if (cmd->nwords < 2) { |
886 | printf("open: expects a host name\n"); |
887 | return 0; |
888 | } |
889 | |
890 | if (psftp_connect(cmd->words[1], NULL, 0)) { |
891 | back = NULL; /* connection is already closed */ |
892 | return -1; /* this is fatal */ |
893 | } |
894 | do_sftp_init(); |
895 | } |
896 | |
bf5240cd |
897 | static int sftp_cmd_help(struct sftp_command *cmd); |
898 | |
4c7f0d61 |
899 | static struct sftp_cmd_lookup { |
900 | char *name; |
bf5240cd |
901 | /* |
902 | * For help purposes, there are two kinds of command: |
903 | * |
904 | * - primary commands, in which `longhelp' is non-NULL. In |
905 | * this case `shorthelp' is descriptive text, and `longhelp' |
906 | * is longer descriptive text intended to be printed after |
907 | * the command name. |
908 | * |
909 | * - alias commands, in which `longhelp' is NULL. In this case |
910 | * `shorthelp' is the name of a primary command, which |
911 | * contains the help that should double up for this command. |
912 | */ |
913 | char *shorthelp; |
914 | char *longhelp; |
32874aea |
915 | int (*obey) (struct sftp_command *); |
4c7f0d61 |
916 | } sftp_lookup[] = { |
917 | /* |
918 | * List of sftp commands. This is binary-searched so it MUST be |
919 | * in ASCII order. |
920 | */ |
32874aea |
921 | { |
bf5240cd |
922 | "bye", "finish your SFTP session", |
923 | "\n" |
924 | " Terminates your SFTP session and quits the PSFTP program.\n", |
925 | sftp_cmd_quit |
926 | }, |
927 | { |
928 | "cd", "change your remote working directory", |
929 | " [ <New working directory> ]\n" |
930 | " Change the remote working directory for your SFTP session.\n" |
931 | " If a new working directory is not supplied, you will be\n" |
932 | " returned to your home directory.\n", |
933 | sftp_cmd_cd |
934 | }, |
935 | { |
936 | "chmod", "change file permissions and modes", |
937 | " ( <octal-digits> | <modifiers> ) <filename>\n" |
938 | " Change the file permissions on a file or directory.\n" |
939 | " <octal-digits> can be any octal Unix permission specifier.\n" |
940 | " Alternatively, <modifiers> can include:\n" |
941 | " u+r make file readable by owning user\n" |
942 | " u+w make file writable by owning user\n" |
943 | " u+x make file executable by owning user\n" |
944 | " u-r make file not readable by owning user\n" |
945 | " [also u-w, u-x]\n" |
946 | " g+r make file readable by members of owning group\n" |
947 | " [also g+w, g+x, g-r, g-w, g-x]\n" |
948 | " o+r make file readable by all other users\n" |
949 | " [also o+w, o+x, o-r, o-w, o-x]\n" |
950 | " a+r make file readable by absolutely everybody\n" |
951 | " [also a+w, a+x, a-r, a-w, a-x]\n" |
952 | " u+s enable the Unix set-user-ID bit\n" |
953 | " u-s disable the Unix set-user-ID bit\n" |
954 | " g+s enable the Unix set-group-ID bit\n" |
955 | " g-s disable the Unix set-group-ID bit\n" |
956 | " +t enable the Unix \"sticky bit\"\n" |
957 | " You can give more than one modifier for the same user (\"g-rwx\"), and\n" |
958 | " more than one user for the same modifier (\"ug+w\"). You can\n" |
959 | " use commas to separate different modifiers (\"u+rwx,g+s\").\n", |
960 | sftp_cmd_chmod |
961 | }, |
962 | { |
963 | "del", "delete a file", |
964 | " <filename>\n" |
965 | " Delete a file.\n", |
966 | sftp_cmd_rm |
967 | }, |
968 | { |
969 | "delete", "delete a file", |
970 | "\n" |
971 | " Delete a file.\n", |
972 | sftp_cmd_rm |
973 | }, |
974 | { |
975 | "dir", "list contents of a remote directory", |
976 | " [ <directory-name> ]\n" |
977 | " List the contents of a specified directory on the server.\n" |
978 | " If <directory-name> is not given, the current working directory\n" |
979 | " will be listed.\n", |
980 | sftp_cmd_ls |
981 | }, |
982 | { |
983 | "exit", "bye", NULL, sftp_cmd_quit |
984 | }, |
985 | { |
986 | "get", "download a file from the server to your local machine", |
987 | " <filename> [ <local-filename> ]\n" |
988 | " Downloads a file on the server and stores it locally under\n" |
989 | " the same name, or under a different one if you supply the\n" |
990 | " argument <local-filename>.\n", |
991 | sftp_cmd_get |
992 | }, |
993 | { |
994 | "help", "give help", |
995 | " [ <command> [ <command> ... ] ]\n" |
996 | " Give general help if no commands are specified.\n" |
997 | " If one or more commands are specified, give specific help on\n" |
998 | " those particular commands.\n", |
999 | sftp_cmd_help |
1000 | }, |
1001 | { |
1002 | "ls", "dir", NULL, |
1003 | sftp_cmd_ls |
1004 | }, |
1005 | { |
1006 | "mkdir", "create a directory on the remote server", |
1007 | " <directory-name>\n" |
1008 | " Creates a directory with the given name on the server.\n", |
1009 | sftp_cmd_mkdir |
1010 | }, |
1011 | { |
1012 | "mv", "move or rename a file on the remote server", |
1013 | " <source-filename> <destination-filename>\n" |
1014 | " Moves or renames the file <source-filename> on the server,\n" |
1015 | " so that it is accessible under the name <destination-filename>.\n", |
1016 | sftp_cmd_mv |
1017 | }, |
1018 | { |
1019 | "put", "upload a file from your local machine to the server", |
1020 | " <filename> [ <remote-filename> ]\n" |
1021 | " Uploads a file to the server and stores it there under\n" |
1022 | " the same name, or under a different one if you supply the\n" |
1023 | " argument <remote-filename>.\n", |
1024 | sftp_cmd_put |
1025 | }, |
1026 | { |
fa3db767 |
1027 | "open", "connect to a host", |
1028 | " [<user>@]<hostname>\n" |
1029 | " Establishes an SFTP connection to a given host. Only usable\n" |
1030 | " when you did not already specify a host name on the command\n" |
1031 | " line.\n", |
1032 | sftp_cmd_open |
1033 | }, |
1034 | { |
4f2b387f |
1035 | "pwd", "print your remote working directory", |
1036 | "\n" |
1037 | " Print the current remote working directory for your SFTP session.\n", |
1038 | sftp_cmd_pwd |
1039 | }, |
1040 | { |
bf5240cd |
1041 | "quit", "bye", NULL, |
1042 | sftp_cmd_quit |
1043 | }, |
1044 | { |
1045 | "reget", "continue downloading a file", |
1046 | " <filename> [ <local-filename> ]\n" |
1047 | " Works exactly like the \"get\" command, but the local file\n" |
1048 | " must already exist. The download will begin at the end of the\n" |
1049 | " file. This is for resuming a download that was interrupted.\n", |
1050 | sftp_cmd_reget |
1051 | }, |
1052 | { |
1053 | "ren", "mv", NULL, |
1054 | sftp_cmd_mv |
1055 | }, |
1056 | { |
1057 | "rename", "mv", NULL, |
1058 | sftp_cmd_mv |
1059 | }, |
1060 | { |
1061 | "reput", "continue uploading a file", |
1062 | " <filename> [ <remote-filename> ]\n" |
1063 | " Works exactly like the \"put\" command, but the remote file\n" |
1064 | " must already exist. The upload will begin at the end of the\n" |
1065 | " file. This is for resuming an upload that was interrupted.\n", |
1066 | sftp_cmd_reput |
1067 | }, |
1068 | { |
1069 | "rm", "del", NULL, |
1070 | sftp_cmd_rm |
1071 | }, |
1072 | { |
1073 | "rmdir", "remove a directory on the remote server", |
1074 | " <directory-name>\n" |
1075 | " Removes the directory with the given name on the server.\n" |
1076 | " The directory will not be removed unless it is empty.\n", |
1077 | sftp_cmd_rmdir |
1078 | } |
1079 | }; |
1080 | |
1081 | const struct sftp_cmd_lookup *lookup_command(char *name) |
1082 | { |
1083 | int i, j, k, cmp; |
1084 | |
1085 | i = -1; |
1086 | j = sizeof(sftp_lookup) / sizeof(*sftp_lookup); |
1087 | while (j - i > 1) { |
1088 | k = (j + i) / 2; |
1089 | cmp = strcmp(name, sftp_lookup[k].name); |
1090 | if (cmp < 0) |
1091 | j = k; |
1092 | else if (cmp > 0) |
1093 | i = k; |
1094 | else { |
1095 | return &sftp_lookup[k]; |
1096 | } |
1097 | } |
1098 | return NULL; |
1099 | } |
1100 | |
1101 | static int sftp_cmd_help(struct sftp_command *cmd) |
1102 | { |
1103 | int i; |
1104 | if (cmd->nwords == 1) { |
1105 | /* |
1106 | * Give short help on each command. |
1107 | */ |
1108 | int maxlen; |
1109 | maxlen = 0; |
1110 | for (i = 0; i < sizeof(sftp_lookup) / sizeof(*sftp_lookup); i++) { |
1111 | int len = strlen(sftp_lookup[i].name); |
1112 | if (maxlen < len) |
1113 | maxlen = len; |
1114 | } |
1115 | for (i = 0; i < sizeof(sftp_lookup) / sizeof(*sftp_lookup); i++) { |
1116 | const struct sftp_cmd_lookup *lookup; |
1117 | lookup = &sftp_lookup[i]; |
1118 | printf("%-*s", maxlen+2, lookup->name); |
1119 | if (lookup->longhelp == NULL) |
1120 | lookup = lookup_command(lookup->shorthelp); |
1121 | printf("%s\n", lookup->shorthelp); |
1122 | } |
1123 | } else { |
1124 | /* |
1125 | * Give long help on specific commands. |
1126 | */ |
1127 | for (i = 1; i < cmd->nwords; i++) { |
1128 | const struct sftp_cmd_lookup *lookup; |
1129 | lookup = lookup_command(cmd->words[i]); |
1130 | if (!lookup) { |
1131 | printf("help: %s: command not found\n", cmd->words[i]); |
1132 | } else { |
1133 | printf("%s", lookup->name); |
1134 | if (lookup->longhelp == NULL) |
1135 | lookup = lookup_command(lookup->shorthelp); |
1136 | printf("%s", lookup->longhelp); |
1137 | } |
1138 | } |
1139 | } |
1140 | return 0; |
1141 | } |
4c7f0d61 |
1142 | |
1143 | /* ---------------------------------------------------------------------- |
1144 | * Command line reading and parsing. |
1145 | */ |
9954aaa3 |
1146 | struct sftp_command *sftp_getcmd(FILE *fp, int mode, int modeflags) |
32874aea |
1147 | { |
4c7f0d61 |
1148 | char *line; |
1149 | int linelen, linesize; |
1150 | struct sftp_command *cmd; |
1151 | char *p, *q, *r; |
1152 | int quoting; |
1153 | |
9954aaa3 |
1154 | if ((mode == 0) || (modeflags & 1)) { |
1155 | printf("psftp> "); |
1156 | } |
4c7f0d61 |
1157 | fflush(stdout); |
1158 | |
1159 | cmd = smalloc(sizeof(struct sftp_command)); |
1160 | cmd->words = NULL; |
1161 | cmd->nwords = 0; |
1162 | cmd->wordssize = 0; |
1163 | |
1164 | line = NULL; |
1165 | linesize = linelen = 0; |
1166 | while (1) { |
1167 | int len; |
1168 | char *ret; |
1169 | |
1170 | linesize += 512; |
1171 | line = srealloc(line, linesize); |
9954aaa3 |
1172 | ret = fgets(line + linelen, linesize - linelen, fp); |
1173 | if (modeflags & 1) { |
1174 | printf("%s", ret); |
1175 | } |
4c7f0d61 |
1176 | |
1177 | if (!ret || (linelen == 0 && line[0] == '\0')) { |
1178 | cmd->obey = sftp_cmd_quit; |
1179 | printf("quit\n"); |
1180 | return cmd; /* eof */ |
1181 | } |
32874aea |
1182 | len = linelen + strlen(line + linelen); |
4c7f0d61 |
1183 | linelen += len; |
32874aea |
1184 | if (line[linelen - 1] == '\n') { |
4c7f0d61 |
1185 | linelen--; |
1186 | line[linelen] = '\0'; |
1187 | break; |
1188 | } |
1189 | } |
1190 | |
1191 | /* |
1192 | * Parse the command line into words. The syntax is: |
1193 | * - double quotes are removed, but cause spaces within to be |
1194 | * treated as non-separating. |
1195 | * - a double-doublequote pair is a literal double quote, inside |
1196 | * _or_ outside quotes. Like this: |
1197 | * |
1198 | * firstword "second word" "this has ""quotes"" in" sodoes""this"" |
1199 | * |
1200 | * becomes |
1201 | * |
1202 | * >firstword< |
1203 | * >second word< |
1204 | * >this has "quotes" in< |
1205 | * >sodoes"this"< |
1206 | */ |
1207 | p = line; |
1208 | while (*p) { |
1209 | /* skip whitespace */ |
32874aea |
1210 | while (*p && (*p == ' ' || *p == '\t')) |
1211 | p++; |
4c7f0d61 |
1212 | /* mark start of word */ |
1213 | q = r = p; /* q sits at start, r writes word */ |
1214 | quoting = 0; |
1215 | while (*p) { |
1216 | if (!quoting && (*p == ' ' || *p == '\t')) |
1217 | break; /* reached end of word */ |
1218 | else if (*p == '"' && p[1] == '"') |
32874aea |
1219 | p += 2, *r++ = '"'; /* a literal quote */ |
4c7f0d61 |
1220 | else if (*p == '"') |
1221 | p++, quoting = !quoting; |
1222 | else |
1223 | *r++ = *p++; |
1224 | } |
32874aea |
1225 | if (*p) |
1226 | p++; /* skip over the whitespace */ |
4c7f0d61 |
1227 | *r = '\0'; |
1228 | if (cmd->nwords >= cmd->wordssize) { |
1229 | cmd->wordssize = cmd->nwords + 16; |
32874aea |
1230 | cmd->words = |
1231 | srealloc(cmd->words, cmd->wordssize * sizeof(char *)); |
4c7f0d61 |
1232 | } |
1233 | cmd->words[cmd->nwords++] = q; |
1234 | } |
1235 | |
1236 | /* |
1237 | * Now parse the first word and assign a function. |
1238 | */ |
1239 | |
1240 | if (cmd->nwords == 0) |
1241 | cmd->obey = sftp_cmd_null; |
1242 | else { |
bf5240cd |
1243 | const struct sftp_cmd_lookup *lookup; |
1244 | lookup = lookup_command(cmd->words[0]); |
1245 | if (!lookup) |
1246 | cmd->obey = sftp_cmd_unknown; |
1247 | else |
1248 | cmd->obey = lookup->obey; |
4c7f0d61 |
1249 | } |
1250 | |
1251 | return cmd; |
1252 | } |
1253 | |
fa3db767 |
1254 | static void do_sftp_init(void) |
32874aea |
1255 | { |
4c7f0d61 |
1256 | /* |
1257 | * Do protocol initialisation. |
1258 | */ |
1259 | if (!fxp_init()) { |
1260 | fprintf(stderr, |
32874aea |
1261 | "Fatal: unable to initialise SFTP: %s\n", fxp_error()); |
0d694692 |
1262 | return; |
4c7f0d61 |
1263 | } |
1264 | |
1265 | /* |
1266 | * Find out where our home directory is. |
1267 | */ |
f9e162aa |
1268 | homedir = fxp_realpath("."); |
4c7f0d61 |
1269 | if (!homedir) { |
1270 | fprintf(stderr, |
1271 | "Warning: failed to resolve home directory: %s\n", |
1272 | fxp_error()); |
1273 | homedir = dupstr("."); |
1274 | } else { |
1275 | printf("Remote working directory is %s\n", homedir); |
1276 | } |
1277 | pwd = dupstr(homedir); |
fa3db767 |
1278 | } |
1279 | |
1280 | void do_sftp(int mode, int modeflags, char *batchfile) |
1281 | { |
1282 | FILE *fp; |
4c7f0d61 |
1283 | |
9954aaa3 |
1284 | /* |
1285 | * Batch mode? |
4c7f0d61 |
1286 | */ |
9954aaa3 |
1287 | if (mode == 0) { |
1288 | |
1289 | /* ------------------------------------------------------------------ |
1290 | * Now we're ready to do Real Stuff. |
1291 | */ |
1292 | while (1) { |
1293 | struct sftp_command *cmd; |
1294 | cmd = sftp_getcmd(stdin, 0, 0); |
1295 | if (!cmd) |
1296 | break; |
1297 | if (cmd->obey(cmd) < 0) |
1298 | break; |
bf5240cd |
1299 | } |
9954aaa3 |
1300 | } else { |
1301 | fp = fopen(batchfile, "r"); |
1302 | if (!fp) { |
bf5240cd |
1303 | printf("Fatal: unable to open %s\n", batchfile); |
1304 | return; |
9954aaa3 |
1305 | } |
1306 | while (1) { |
bf5240cd |
1307 | struct sftp_command *cmd; |
1308 | cmd = sftp_getcmd(fp, mode, modeflags); |
1309 | if (!cmd) |
1310 | break; |
1311 | if (cmd->obey(cmd) < 0) |
1312 | break; |
1313 | if (fxp_error() != NULL) { |
1314 | if (!(modeflags & 2)) |
9954aaa3 |
1315 | break; |
bf5240cd |
1316 | } |
9954aaa3 |
1317 | } |
bf5240cd |
1318 | fclose(fp); |
9954aaa3 |
1319 | |
4c7f0d61 |
1320 | } |
4a8fc3c4 |
1321 | } |
4c7f0d61 |
1322 | |
4a8fc3c4 |
1323 | /* ---------------------------------------------------------------------- |
1324 | * Dirty bits: integration with PuTTY. |
1325 | */ |
1326 | |
1327 | static int verbose = 0; |
1328 | |
1329 | void verify_ssh_host_key(char *host, int port, char *keytype, |
32874aea |
1330 | char *keystr, char *fingerprint) |
1331 | { |
4a8fc3c4 |
1332 | int ret; |
d0718310 |
1333 | HANDLE hin; |
1334 | DWORD savemode, i; |
4a8fc3c4 |
1335 | |
1336 | static const char absentmsg[] = |
32874aea |
1337 | "The server's host key is not cached in the registry. You\n" |
1338 | "have no guarantee that the server is the computer you\n" |
1339 | "think it is.\n" |
1340 | "The server's key fingerprint is:\n" |
1341 | "%s\n" |
1342 | "If you trust this host, enter \"y\" to add the key to\n" |
1343 | "PuTTY's cache and carry on connecting.\n" |
d0718310 |
1344 | "If you want to carry on connecting just once, without\n" |
1345 | "adding the key to the cache, enter \"n\".\n" |
1346 | "If you do not trust this host, press Return to abandon the\n" |
1347 | "connection.\n" |
1348 | "Store key in cache? (y/n) "; |
4a8fc3c4 |
1349 | |
1350 | static const char wrongmsg[] = |
32874aea |
1351 | "WARNING - POTENTIAL SECURITY BREACH!\n" |
1352 | "The server's host key does not match the one PuTTY has\n" |
1353 | "cached in the registry. This means that either the\n" |
1354 | "server administrator has changed the host key, or you\n" |
1355 | "have actually connected to another computer pretending\n" |
1356 | "to be the server.\n" |
1357 | "The new key fingerprint is:\n" |
1358 | "%s\n" |
1359 | "If you were expecting this change and trust the new key,\n" |
d0718310 |
1360 | "enter \"y\" to update PuTTY's cache and continue connecting.\n" |
32874aea |
1361 | "If you want to carry on connecting but without updating\n" |
d0718310 |
1362 | "the cache, enter \"n\".\n" |
32874aea |
1363 | "If you want to abandon the connection completely, press\n" |
1364 | "Return to cancel. Pressing Return is the ONLY guaranteed\n" |
1365 | "safe choice.\n" |
1366 | "Update cached key? (y/n, Return cancels connection) "; |
4a8fc3c4 |
1367 | |
1368 | static const char abandoned[] = "Connection abandoned.\n"; |
1369 | |
1370 | char line[32]; |
1371 | |
1372 | /* |
1373 | * Verify the key against the registry. |
1374 | */ |
1375 | ret = verify_host_key(host, port, keytype, keystr); |
1376 | |
32874aea |
1377 | if (ret == 0) /* success - key matched OK */ |
1378 | return; |
d0718310 |
1379 | |
32874aea |
1380 | if (ret == 2) { /* key was different */ |
1381 | fprintf(stderr, wrongmsg, fingerprint); |
d0718310 |
1382 | fflush(stderr); |
4a8fc3c4 |
1383 | } |
32874aea |
1384 | if (ret == 1) { /* key was absent */ |
1385 | fprintf(stderr, absentmsg, fingerprint); |
d0718310 |
1386 | fflush(stderr); |
1387 | } |
1388 | |
1389 | hin = GetStdHandle(STD_INPUT_HANDLE); |
1390 | GetConsoleMode(hin, &savemode); |
1391 | SetConsoleMode(hin, (savemode | ENABLE_ECHO_INPUT | |
1392 | ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT)); |
1393 | ReadFile(hin, line, sizeof(line) - 1, &i, NULL); |
1394 | SetConsoleMode(hin, savemode); |
1395 | |
1396 | if (line[0] != '\0' && line[0] != '\r' && line[0] != '\n') { |
1397 | if (line[0] == 'y' || line[0] == 'Y') |
32874aea |
1398 | store_host_key(host, port, keytype, keystr); |
d0718310 |
1399 | } else { |
1400 | fprintf(stderr, abandoned); |
1401 | exit(0); |
4a8fc3c4 |
1402 | } |
1403 | } |
1404 | |
1405 | /* |
ca20bfcf |
1406 | * Ask whether the selected cipher is acceptable (since it was |
1407 | * below the configured 'warn' threshold). |
1408 | * cs: 0 = both ways, 1 = client->server, 2 = server->client |
1409 | */ |
1410 | void askcipher(char *ciphername, int cs) |
1411 | { |
1412 | HANDLE hin; |
1413 | DWORD savemode, i; |
1414 | |
1415 | static const char msg[] = |
1416 | "The first %scipher supported by the server is\n" |
1417 | "%s, which is below the configured warning threshold.\n" |
1418 | "Continue with connection? (y/n) "; |
1419 | static const char abandoned[] = "Connection abandoned.\n"; |
1420 | |
1421 | char line[32]; |
1422 | |
1423 | fprintf(stderr, msg, |
1424 | (cs == 0) ? "" : |
1425 | (cs == 1) ? "client-to-server " : |
1426 | "server-to-client ", |
1427 | ciphername); |
1428 | fflush(stderr); |
1429 | |
1430 | hin = GetStdHandle(STD_INPUT_HANDLE); |
1431 | GetConsoleMode(hin, &savemode); |
1432 | SetConsoleMode(hin, (savemode | ENABLE_ECHO_INPUT | |
1433 | ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT)); |
1434 | ReadFile(hin, line, sizeof(line) - 1, &i, NULL); |
1435 | SetConsoleMode(hin, savemode); |
1436 | |
1437 | if (line[0] == 'y' || line[0] == 'Y') { |
1438 | return; |
1439 | } else { |
1440 | fprintf(stderr, abandoned); |
1441 | exit(0); |
1442 | } |
1443 | } |
1444 | |
1445 | /* |
7bedb13c |
1446 | * Warn about the obsolescent key file format. |
1447 | */ |
1448 | void old_keyfile_warning(void) |
1449 | { |
1450 | static const char message[] = |
1451 | "You are loading an SSH 2 private key which has an\n" |
1452 | "old version of the file format. This means your key\n" |
1453 | "file is not fully tamperproof. Future versions of\n" |
1454 | "PuTTY may stop supporting this private key format,\n" |
1455 | "so we recommend you convert your key to the new\n" |
1456 | "format.\n" |
1457 | "\n" |
1458 | "Once the key is loaded into PuTTYgen, you can perform\n" |
1459 | "this conversion simply by saving it again.\n"; |
1460 | |
1461 | fputs(message, stderr); |
1462 | } |
1463 | |
1464 | /* |
4a8fc3c4 |
1465 | * Print an error message and perform a fatal exit. |
1466 | */ |
1467 | void fatalbox(char *fmt, ...) |
1468 | { |
32874aea |
1469 | char str[0x100]; /* Make the size big enough */ |
4a8fc3c4 |
1470 | va_list ap; |
1471 | va_start(ap, fmt); |
1472 | strcpy(str, "Fatal:"); |
32874aea |
1473 | vsprintf(str + strlen(str), fmt, ap); |
4a8fc3c4 |
1474 | va_end(ap); |
1475 | strcat(str, "\n"); |
fa3db767 |
1476 | fputs(stderr, str); |
4a8fc3c4 |
1477 | |
1478 | exit(1); |
1479 | } |
1480 | void connection_fatal(char *fmt, ...) |
1481 | { |
32874aea |
1482 | char str[0x100]; /* Make the size big enough */ |
4a8fc3c4 |
1483 | va_list ap; |
1484 | va_start(ap, fmt); |
1485 | strcpy(str, "Fatal:"); |
32874aea |
1486 | vsprintf(str + strlen(str), fmt, ap); |
4a8fc3c4 |
1487 | va_end(ap); |
1488 | strcat(str, "\n"); |
fa3db767 |
1489 | fputs(stderr, str); |
4a8fc3c4 |
1490 | |
1491 | exit(1); |
1492 | } |
1493 | |
32874aea |
1494 | void logevent(char *string) |
1495 | { |
1496 | } |
4a8fc3c4 |
1497 | |
760e88b2 |
1498 | void ldisc_send(char *buf, int len, int interactive) |
32874aea |
1499 | { |
4a8fc3c4 |
1500 | /* |
1501 | * This is only here because of the calls to ldisc_send(NULL, |
1502 | * 0) in ssh.c. Nothing in PSFTP actually needs to use the |
1503 | * ldisc as an ldisc. So if we get called with any real data, I |
1504 | * want to know about it. |
4c7f0d61 |
1505 | */ |
4a8fc3c4 |
1506 | assert(len == 0); |
1507 | } |
1508 | |
1509 | /* |
1510 | * Be told what socket we're supposed to be using. |
1511 | */ |
1512 | static SOCKET sftp_ssh_socket; |
32874aea |
1513 | char *do_select(SOCKET skt, int startup) |
1514 | { |
4a8fc3c4 |
1515 | if (startup) |
1516 | sftp_ssh_socket = skt; |
1517 | else |
1518 | sftp_ssh_socket = INVALID_SOCKET; |
1519 | return NULL; |
4c7f0d61 |
1520 | } |
4a8fc3c4 |
1521 | extern int select_result(WPARAM, LPARAM); |
1522 | |
1523 | /* |
1524 | * Receive a block of data from the SSH link. Block until all data |
1525 | * is available. |
1526 | * |
1527 | * To do this, we repeatedly call the SSH protocol module, with our |
1528 | * own trap in from_backend() to catch the data that comes back. We |
1529 | * do this until we have enough data. |
1530 | */ |
1531 | |
32874aea |
1532 | static unsigned char *outptr; /* where to put the data */ |
1533 | static unsigned outlen; /* how much data required */ |
4a8fc3c4 |
1534 | static unsigned char *pending = NULL; /* any spare data */ |
32874aea |
1535 | static unsigned pendlen = 0, pendsize = 0; /* length and phys. size of buffer */ |
5471d09a |
1536 | int from_backend(int is_stderr, char *data, int datalen) |
32874aea |
1537 | { |
1538 | unsigned char *p = (unsigned char *) data; |
1539 | unsigned len = (unsigned) datalen; |
4a8fc3c4 |
1540 | |
1541 | /* |
1542 | * stderr data is just spouted to local stderr and otherwise |
1543 | * ignored. |
1544 | */ |
1545 | if (is_stderr) { |
1546 | fwrite(data, 1, len, stderr); |
5471d09a |
1547 | return 0; |
4a8fc3c4 |
1548 | } |
1549 | |
1550 | /* |
1551 | * If this is before the real session begins, just return. |
1552 | */ |
1553 | if (!outptr) |
5471d09a |
1554 | return 0; |
4a8fc3c4 |
1555 | |
1556 | if (outlen > 0) { |
32874aea |
1557 | unsigned used = outlen; |
1558 | if (used > len) |
1559 | used = len; |
1560 | memcpy(outptr, p, used); |
1561 | outptr += used; |
1562 | outlen -= used; |
1563 | p += used; |
1564 | len -= used; |
4a8fc3c4 |
1565 | } |
1566 | |
1567 | if (len > 0) { |
32874aea |
1568 | if (pendsize < pendlen + len) { |
1569 | pendsize = pendlen + len + 4096; |
1570 | pending = (pending ? srealloc(pending, pendsize) : |
1571 | smalloc(pendsize)); |
1572 | if (!pending) |
1573 | fatalbox("Out of memory"); |
1574 | } |
1575 | memcpy(pending + pendlen, p, len); |
1576 | pendlen += len; |
4a8fc3c4 |
1577 | } |
5471d09a |
1578 | |
1579 | return 0; |
4a8fc3c4 |
1580 | } |
32874aea |
1581 | int sftp_recvdata(char *buf, int len) |
1582 | { |
1583 | outptr = (unsigned char *) buf; |
4a8fc3c4 |
1584 | outlen = len; |
1585 | |
1586 | /* |
1587 | * See if the pending-input block contains some of what we |
1588 | * need. |
1589 | */ |
1590 | if (pendlen > 0) { |
32874aea |
1591 | unsigned pendused = pendlen; |
1592 | if (pendused > outlen) |
1593 | pendused = outlen; |
4a8fc3c4 |
1594 | memcpy(outptr, pending, pendused); |
32874aea |
1595 | memmove(pending, pending + pendused, pendlen - pendused); |
4a8fc3c4 |
1596 | outptr += pendused; |
1597 | outlen -= pendused; |
32874aea |
1598 | pendlen -= pendused; |
1599 | if (pendlen == 0) { |
1600 | pendsize = 0; |
1601 | sfree(pending); |
1602 | pending = NULL; |
1603 | } |
1604 | if (outlen == 0) |
1605 | return 1; |
4a8fc3c4 |
1606 | } |
1607 | |
1608 | while (outlen > 0) { |
32874aea |
1609 | fd_set readfds; |
4a8fc3c4 |
1610 | |
32874aea |
1611 | FD_ZERO(&readfds); |
1612 | FD_SET(sftp_ssh_socket, &readfds); |
1613 | if (select(1, &readfds, NULL, NULL, NULL) < 0) |
1614 | return 0; /* doom */ |
1615 | select_result((WPARAM) sftp_ssh_socket, (LPARAM) FD_READ); |
4a8fc3c4 |
1616 | } |
1617 | |
1618 | return 1; |
1619 | } |
32874aea |
1620 | int sftp_senddata(char *buf, int len) |
1621 | { |
1622 | back->send((unsigned char *) buf, len); |
4a8fc3c4 |
1623 | return 1; |
1624 | } |
1625 | |
1626 | /* |
1627 | * Loop through the ssh connection and authentication process. |
1628 | */ |
32874aea |
1629 | static void ssh_sftp_init(void) |
1630 | { |
4a8fc3c4 |
1631 | if (sftp_ssh_socket == INVALID_SOCKET) |
1632 | return; |
1633 | while (!back->sendok()) { |
32874aea |
1634 | fd_set readfds; |
1635 | FD_ZERO(&readfds); |
1636 | FD_SET(sftp_ssh_socket, &readfds); |
1637 | if (select(1, &readfds, NULL, NULL, NULL) < 0) |
1638 | return; /* doom */ |
1639 | select_result((WPARAM) sftp_ssh_socket, (LPARAM) FD_READ); |
4a8fc3c4 |
1640 | } |
1641 | } |
1642 | |
1643 | static char *password = NULL; |
fa17a66e |
1644 | static int get_line(const char *prompt, char *str, int maxlen, int is_pw) |
4a8fc3c4 |
1645 | { |
1646 | HANDLE hin, hout; |
fa17a66e |
1647 | DWORD savemode, newmode, i; |
4a8fc3c4 |
1648 | |
1649 | if (password) { |
32874aea |
1650 | static int tried_once = 0; |
1651 | |
1652 | if (tried_once) { |
1653 | return 0; |
1654 | } else { |
1655 | strncpy(str, password, maxlen); |
1656 | str[maxlen - 1] = '\0'; |
1657 | tried_once = 1; |
1658 | return 1; |
1659 | } |
4a8fc3c4 |
1660 | } |
1661 | |
1662 | hin = GetStdHandle(STD_INPUT_HANDLE); |
1663 | hout = GetStdHandle(STD_OUTPUT_HANDLE); |
1664 | if (hin == INVALID_HANDLE_VALUE || hout == INVALID_HANDLE_VALUE) { |
1665 | fprintf(stderr, "Cannot get standard input/output handles\n"); |
1666 | exit(1); |
1667 | } |
1668 | |
1669 | GetConsoleMode(hin, &savemode); |
fa17a66e |
1670 | newmode = savemode | ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT; |
1671 | if (is_pw) |
32874aea |
1672 | newmode &= ~ENABLE_ECHO_INPUT; |
fa17a66e |
1673 | else |
32874aea |
1674 | newmode |= ENABLE_ECHO_INPUT; |
fa17a66e |
1675 | SetConsoleMode(hin, newmode); |
4a8fc3c4 |
1676 | |
1677 | WriteFile(hout, prompt, strlen(prompt), &i, NULL); |
32874aea |
1678 | ReadFile(hin, str, maxlen - 1, &i, NULL); |
4a8fc3c4 |
1679 | |
1680 | SetConsoleMode(hin, savemode); |
1681 | |
32874aea |
1682 | if ((int) i > maxlen) |
1683 | i = maxlen - 1; |
1684 | else |
1685 | i = i - 2; |
4a8fc3c4 |
1686 | str[i] = '\0'; |
1687 | |
fa17a66e |
1688 | if (is_pw) |
32874aea |
1689 | WriteFile(hout, "\r\n", 2, &i, NULL); |
4a8fc3c4 |
1690 | |
1691 | return 1; |
1692 | } |
1693 | |
1694 | /* |
1695 | * Initialize the Win$ock driver. |
1696 | */ |
1697 | static void init_winsock(void) |
1698 | { |
1699 | WORD winsock_ver; |
1700 | WSADATA wsadata; |
1701 | |
1702 | winsock_ver = MAKEWORD(1, 1); |
1703 | if (WSAStartup(winsock_ver, &wsadata)) { |
1704 | fprintf(stderr, "Unable to initialise WinSock"); |
1705 | exit(1); |
1706 | } |
32874aea |
1707 | if (LOBYTE(wsadata.wVersion) != 1 || HIBYTE(wsadata.wVersion) != 1) { |
4a8fc3c4 |
1708 | fprintf(stderr, "WinSock version is incompatible with 1.1"); |
1709 | exit(1); |
1710 | } |
1711 | } |
1712 | |
1713 | /* |
1714 | * Short description of parameters. |
1715 | */ |
1716 | static void usage(void) |
1717 | { |
1718 | printf("PuTTY Secure File Transfer (SFTP) client\n"); |
1719 | printf("%s\n", ver); |
1720 | printf("Usage: psftp [options] user@host\n"); |
1721 | printf("Options:\n"); |
9954aaa3 |
1722 | printf(" -b file use specified batchfile\n"); |
1723 | printf(" -bc output batchfile commands\n"); |
1724 | printf(" -be don't stop batchfile processing if errors\n"); |
4a8fc3c4 |
1725 | printf(" -v show verbose messages\n"); |
1726 | printf(" -P port connect to specified port\n"); |
1727 | printf(" -pw passw login with specified password\n"); |
1728 | exit(1); |
1729 | } |
1730 | |
1731 | /* |
fa3db767 |
1732 | * Connect to a host. |
4a8fc3c4 |
1733 | */ |
fa3db767 |
1734 | static int psftp_connect(char *userhost, char *user, int portnumber) |
4a8fc3c4 |
1735 | { |
fa3db767 |
1736 | char *host, *realhost; |
4a8fc3c4 |
1737 | char *err; |
4a8fc3c4 |
1738 | |
1739 | /* Separate host and username */ |
1740 | host = userhost; |
1741 | host = strrchr(host, '@'); |
1742 | if (host == NULL) { |
1743 | host = userhost; |
1744 | } else { |
1745 | *host++ = '\0'; |
1746 | if (user) { |
32874aea |
1747 | printf("psftp: multiple usernames specified; using \"%s\"\n", |
1748 | user); |
4a8fc3c4 |
1749 | } else |
1750 | user = userhost; |
1751 | } |
1752 | |
1753 | /* Try to load settings for this host */ |
1754 | do_defaults(host, &cfg); |
1755 | if (cfg.host[0] == '\0') { |
1756 | /* No settings for this host; use defaults */ |
32874aea |
1757 | do_defaults(NULL, &cfg); |
1758 | strncpy(cfg.host, host, sizeof(cfg.host) - 1); |
1759 | cfg.host[sizeof(cfg.host) - 1] = '\0'; |
4a8fc3c4 |
1760 | cfg.port = 22; |
1761 | } |
1762 | |
449925a6 |
1763 | /* |
1764 | * Trim leading whitespace off the hostname if it's there. |
1765 | */ |
1766 | { |
1767 | int space = strspn(cfg.host, " \t"); |
1768 | memmove(cfg.host, cfg.host+space, 1+strlen(cfg.host)-space); |
1769 | } |
1770 | |
1771 | /* See if host is of the form user@host */ |
1772 | if (cfg.host[0] != '\0') { |
1773 | char *atsign = strchr(cfg.host, '@'); |
1774 | /* Make sure we're not overflowing the user field */ |
1775 | if (atsign) { |
1776 | if (atsign - cfg.host < sizeof cfg.username) { |
1777 | strncpy(cfg.username, cfg.host, atsign - cfg.host); |
1778 | cfg.username[atsign - cfg.host] = '\0'; |
1779 | } |
1780 | memmove(cfg.host, atsign + 1, 1 + strlen(atsign + 1)); |
1781 | } |
1782 | } |
1783 | |
1784 | /* |
1785 | * Trim a colon suffix off the hostname if it's there. |
1786 | */ |
1787 | cfg.host[strcspn(cfg.host, ":")] = '\0'; |
1788 | |
4a8fc3c4 |
1789 | /* Set username */ |
1790 | if (user != NULL && user[0] != '\0') { |
32874aea |
1791 | strncpy(cfg.username, user, sizeof(cfg.username) - 1); |
1792 | cfg.username[sizeof(cfg.username) - 1] = '\0'; |
4a8fc3c4 |
1793 | } |
1794 | if (!cfg.username[0]) { |
1795 | printf("login as: "); |
1796 | if (!fgets(cfg.username, sizeof(cfg.username), stdin)) { |
1797 | fprintf(stderr, "psftp: aborting\n"); |
1798 | exit(1); |
1799 | } else { |
1800 | int len = strlen(cfg.username); |
32874aea |
1801 | if (cfg.username[len - 1] == '\n') |
1802 | cfg.username[len - 1] = '\0'; |
4a8fc3c4 |
1803 | } |
1804 | } |
1805 | |
1806 | if (cfg.protocol != PROT_SSH) |
1807 | cfg.port = 22; |
1808 | |
1809 | if (portnumber) |
1810 | cfg.port = portnumber; |
1811 | |
1812 | /* SFTP uses SSH2 by default always */ |
1813 | cfg.sshprot = 2; |
1814 | |
d27b4a18 |
1815 | /* |
1816 | * Disable scary things which shouldn't be enabled for simple |
1817 | * things like SCP and SFTP: agent forwarding, port forwarding, |
1818 | * X forwarding. |
1819 | */ |
1820 | cfg.x11_forward = 0; |
1821 | cfg.agentfwd = 0; |
1822 | cfg.portfwd[0] = cfg.portfwd[1] = '\0'; |
1823 | |
bebf22d0 |
1824 | /* Set up subsystem name. */ |
4a8fc3c4 |
1825 | strcpy(cfg.remote_cmd, "sftp"); |
1826 | cfg.ssh_subsys = TRUE; |
1827 | cfg.nopty = TRUE; |
1828 | |
bebf22d0 |
1829 | /* |
1830 | * Set up fallback option, for SSH1 servers or servers with the |
1831 | * sftp subsystem not enabled but the server binary installed |
1832 | * in the usual place. We only support fallback on Unix |
248c0c5a |
1833 | * systems, and we use a kludgy piece of shellery which should |
1834 | * try to find sftp-server in various places (the obvious |
1835 | * systemwide spots /usr/lib and /usr/local/lib, and then the |
1836 | * user's PATH) and finally give up. |
bebf22d0 |
1837 | * |
248c0c5a |
1838 | * test -x /usr/lib/sftp-server && exec /usr/lib/sftp-server |
1839 | * test -x /usr/local/lib/sftp-server && exec /usr/local/lib/sftp-server |
1840 | * exec sftp-server |
bebf22d0 |
1841 | * |
1842 | * the idea being that this will attempt to use either of the |
1843 | * obvious pathnames and then give up, and when it does give up |
1844 | * it will print the preferred pathname in the error messages. |
1845 | */ |
1846 | cfg.remote_cmd_ptr2 = |
248c0c5a |
1847 | "test -x /usr/lib/sftp-server && exec /usr/lib/sftp-server\n" |
1848 | "test -x /usr/local/lib/sftp-server && exec /usr/local/lib/sftp-server\n" |
1849 | "exec sftp-server"; |
bebf22d0 |
1850 | cfg.ssh_subsys2 = FALSE; |
1851 | |
4a8fc3c4 |
1852 | back = &ssh_backend; |
1853 | |
2184a5d9 |
1854 | err = back->init(cfg.host, cfg.port, &realhost, 0); |
4a8fc3c4 |
1855 | if (err != NULL) { |
fa3db767 |
1856 | fprintf(stderr, "ssh_init: %s\n", err); |
4a8fc3c4 |
1857 | return 1; |
1858 | } |
1859 | ssh_sftp_init(); |
1860 | if (verbose && realhost != NULL) |
1861 | printf("Connected to %s\n", realhost); |
fa3db767 |
1862 | return 0; |
1863 | } |
1864 | |
1865 | /* |
1866 | * Main program. Parse arguments etc. |
1867 | */ |
1868 | int main(int argc, char *argv[]) |
1869 | { |
1870 | int i; |
1871 | int portnumber = 0; |
1872 | char *userhost, *user; |
1873 | int mode = 0; |
1874 | int modeflags = 0; |
1875 | char *batchfile = NULL; |
1876 | |
1877 | flags = FLAG_STDERR | FLAG_INTERACTIVE; |
1878 | ssh_get_line = &get_line; |
1879 | init_winsock(); |
1880 | sk_init(); |
1881 | |
1882 | userhost = user = NULL; |
1883 | |
1884 | for (i = 1; i < argc; i++) { |
1885 | if (argv[i][0] != '-') { |
1886 | if (userhost) |
1887 | usage(); |
1888 | else |
1889 | userhost = dupstr(argv[i]); |
1890 | } else if (strcmp(argv[i], "-v") == 0) { |
1891 | verbose = 1, flags |= FLAG_VERBOSE; |
1892 | } else if (strcmp(argv[i], "-h") == 0 || |
1893 | strcmp(argv[i], "-?") == 0) { |
1894 | usage(); |
1895 | } else if (strcmp(argv[i], "-l") == 0 && i + 1 < argc) { |
1896 | user = argv[++i]; |
1897 | } else if (strcmp(argv[i], "-P") == 0 && i + 1 < argc) { |
1898 | portnumber = atoi(argv[++i]); |
1899 | } else if (strcmp(argv[i], "-pw") == 0 && i + 1 < argc) { |
1900 | password = argv[++i]; |
1901 | } else if (strcmp(argv[i], "-b") == 0 && i + 1 < argc) { |
1902 | mode = 1; |
1903 | batchfile = argv[++i]; |
1904 | } else if (strcmp(argv[i], "-bc") == 0 && i + 1 < argc) { |
1905 | modeflags = modeflags | 1; |
1906 | } else if (strcmp(argv[i], "-be") == 0 && i + 1 < argc) { |
1907 | modeflags = modeflags | 2; |
1908 | } else if (strcmp(argv[i], "--") == 0) { |
1909 | i++; |
1910 | break; |
1911 | } else { |
1912 | usage(); |
1913 | } |
1914 | } |
1915 | argc -= i; |
1916 | argv += i; |
1917 | back = NULL; |
1918 | |
1919 | /* |
1920 | * If a user@host string has already been provided, connect to |
1921 | * it now. |
1922 | */ |
1923 | if (userhost) { |
1924 | if (psftp_connect(userhost, user, portnumber)) |
1925 | return 1; |
1926 | do_sftp_init(); |
1927 | } else { |
1928 | printf("psftp: no hostname specified; use \"open host.name\"" |
1929 | " to connect\n"); |
1930 | } |
4c7f0d61 |
1931 | |
9954aaa3 |
1932 | do_sftp(mode, modeflags, batchfile); |
4a8fc3c4 |
1933 | |
1934 | if (back != NULL && back->socket() != NULL) { |
1935 | char ch; |
1936 | back->special(TS_EOF); |
1937 | sftp_recvdata(&ch, 1); |
1938 | } |
1939 | WSACleanup(); |
1940 | random_save_seed(); |
1941 | |
4c7f0d61 |
1942 | return 0; |
1943 | } |