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); |
07534184 |
28 | static int do_sftp_init(void); |
fa3db767 |
29 | |
4c7f0d61 |
30 | /* ---------------------------------------------------------------------- |
4c7f0d61 |
31 | * sftp client state. |
32 | */ |
33 | |
34 | char *pwd, *homedir; |
6b78788a |
35 | static Backend *back; |
36 | static void *backhandle; |
3ea863a3 |
37 | static Config cfg; |
4c7f0d61 |
38 | |
39 | /* ---------------------------------------------------------------------- |
40 | * Higher-level helper functions used in commands. |
41 | */ |
42 | |
43 | /* |
f9e162aa |
44 | * Attempt to canonify a pathname starting from the pwd. If |
45 | * canonification fails, at least fall back to returning a _valid_ |
46 | * pathname (though it may be ugly, eg /home/simon/../foobar). |
4c7f0d61 |
47 | */ |
32874aea |
48 | char *canonify(char *name) |
49 | { |
f9e162aa |
50 | char *fullname, *canonname; |
4a8fc3c4 |
51 | |
f9e162aa |
52 | if (name[0] == '/') { |
53 | fullname = dupstr(name); |
54 | } else { |
4a8fc3c4 |
55 | char *slash; |
32874aea |
56 | if (pwd[strlen(pwd) - 1] == '/') |
4a8fc3c4 |
57 | slash = ""; |
58 | else |
59 | slash = "/"; |
60 | fullname = dupcat(pwd, slash, name, NULL); |
f9e162aa |
61 | } |
4a8fc3c4 |
62 | |
63 | canonname = fxp_realpath(fullname); |
64 | |
f9e162aa |
65 | if (canonname) { |
66 | sfree(fullname); |
67 | return canonname; |
50d7e054 |
68 | } else { |
32874aea |
69 | /* |
70 | * Attempt number 2. Some FXP_REALPATH implementations |
71 | * (glibc-based ones, in particular) require the _whole_ |
72 | * path to point to something that exists, whereas others |
73 | * (BSD-based) only require all but the last component to |
74 | * exist. So if the first call failed, we should strip off |
75 | * everything from the last slash onwards and try again, |
76 | * then put the final component back on. |
77 | * |
78 | * Special cases: |
79 | * |
80 | * - if the last component is "/." or "/..", then we don't |
81 | * bother trying this because there's no way it can work. |
82 | * |
83 | * - if the thing actually ends with a "/", we remove it |
84 | * before we start. Except if the string is "/" itself |
85 | * (although I can't see why we'd have got here if so, |
86 | * because surely "/" would have worked the first |
87 | * time?), in which case we don't bother. |
88 | * |
89 | * - if there's no slash in the string at all, give up in |
90 | * confusion (we expect at least one because of the way |
91 | * we constructed the string). |
92 | */ |
93 | |
94 | int i; |
95 | char *returnname; |
96 | |
97 | i = strlen(fullname); |
98 | if (i > 2 && fullname[i - 1] == '/') |
99 | fullname[--i] = '\0'; /* strip trailing / unless at pos 0 */ |
100 | while (i > 0 && fullname[--i] != '/'); |
101 | |
102 | /* |
103 | * Give up on special cases. |
104 | */ |
105 | if (fullname[i] != '/' || /* no slash at all */ |
106 | !strcmp(fullname + i, "/.") || /* ends in /. */ |
107 | !strcmp(fullname + i, "/..") || /* ends in /.. */ |
108 | !strcmp(fullname, "/")) { |
109 | return fullname; |
110 | } |
111 | |
112 | /* |
113 | * Now i points at the slash. Deal with the final special |
114 | * case i==0 (ie the whole path was "/nonexistentfile"). |
115 | */ |
116 | fullname[i] = '\0'; /* separate the string */ |
117 | if (i == 0) { |
118 | canonname = fxp_realpath("/"); |
119 | } else { |
120 | canonname = fxp_realpath(fullname); |
121 | } |
122 | |
123 | if (!canonname) |
124 | return fullname; /* even that failed; give up */ |
125 | |
126 | /* |
127 | * We have a canonical name for all but the last path |
128 | * component. Concatenate the last component and return. |
129 | */ |
130 | returnname = dupcat(canonname, |
131 | canonname[strlen(canonname) - 1] == |
132 | '/' ? "" : "/", fullname + i + 1, NULL); |
133 | sfree(fullname); |
134 | sfree(canonname); |
135 | return returnname; |
50d7e054 |
136 | } |
4c7f0d61 |
137 | } |
138 | |
dcf8495c |
139 | /* |
140 | * Return a pointer to the portion of str that comes after the last |
141 | * slash (or backslash or colon, if `local' is TRUE). |
142 | */ |
143 | static char *stripslashes(char *str, int local) |
144 | { |
145 | char *p; |
146 | |
147 | if (local) { |
148 | p = strchr(str, ':'); |
149 | if (p) str = p+1; |
150 | } |
151 | |
152 | p = strrchr(str, '/'); |
153 | if (p) str = p+1; |
154 | |
155 | if (local) { |
156 | p = strrchr(str, '\\'); |
157 | if (p) str = p+1; |
158 | } |
159 | |
160 | return str; |
161 | } |
162 | |
4c7f0d61 |
163 | /* ---------------------------------------------------------------------- |
164 | * Actual sftp commands. |
165 | */ |
166 | struct sftp_command { |
167 | char **words; |
168 | int nwords, wordssize; |
32874aea |
169 | int (*obey) (struct sftp_command *); /* returns <0 to quit */ |
4c7f0d61 |
170 | }; |
171 | |
32874aea |
172 | int sftp_cmd_null(struct sftp_command *cmd) |
173 | { |
df49ff19 |
174 | return 1; /* success */ |
4c7f0d61 |
175 | } |
176 | |
32874aea |
177 | int sftp_cmd_unknown(struct sftp_command *cmd) |
178 | { |
4c7f0d61 |
179 | printf("psftp: unknown command \"%s\"\n", cmd->words[0]); |
df49ff19 |
180 | return 0; /* failure */ |
4c7f0d61 |
181 | } |
182 | |
32874aea |
183 | int sftp_cmd_quit(struct sftp_command *cmd) |
184 | { |
4c7f0d61 |
185 | return -1; |
186 | } |
187 | |
188 | /* |
189 | * List a directory. If no arguments are given, list pwd; otherwise |
190 | * list the directory given in words[1]. |
191 | */ |
32874aea |
192 | static int sftp_ls_compare(const void *av, const void *bv) |
193 | { |
7d2c1789 |
194 | const struct fxp_name *const *a = (const struct fxp_name *const *) av; |
195 | const struct fxp_name *const *b = (const struct fxp_name *const *) bv; |
196 | return strcmp((*a)->filename, (*b)->filename); |
4c7f0d61 |
197 | } |
32874aea |
198 | int sftp_cmd_ls(struct sftp_command *cmd) |
199 | { |
4c7f0d61 |
200 | struct fxp_handle *dirh; |
201 | struct fxp_names *names; |
7d2c1789 |
202 | struct fxp_name **ournames; |
4c7f0d61 |
203 | int nnames, namesize; |
204 | char *dir, *cdir; |
205 | int i; |
206 | |
fa3db767 |
207 | if (back == NULL) { |
208 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
209 | return 0; |
210 | } |
211 | |
4c7f0d61 |
212 | if (cmd->nwords < 2) |
213 | dir = "."; |
214 | else |
215 | dir = cmd->words[1]; |
216 | |
217 | cdir = canonify(dir); |
218 | if (!cdir) { |
219 | printf("%s: %s\n", dir, fxp_error()); |
220 | return 0; |
221 | } |
222 | |
223 | printf("Listing directory %s\n", cdir); |
224 | |
225 | dirh = fxp_opendir(cdir); |
226 | if (dirh == NULL) { |
227 | printf("Unable to open %s: %s\n", dir, fxp_error()); |
228 | } else { |
229 | nnames = namesize = 0; |
230 | ournames = NULL; |
231 | |
232 | while (1) { |
233 | |
234 | names = fxp_readdir(dirh); |
235 | if (names == NULL) { |
236 | if (fxp_error_type() == SSH_FX_EOF) |
237 | break; |
238 | printf("Reading directory %s: %s\n", dir, fxp_error()); |
239 | break; |
240 | } |
241 | if (names->nnames == 0) { |
242 | fxp_free_names(names); |
243 | break; |
244 | } |
245 | |
246 | if (nnames + names->nnames >= namesize) { |
247 | namesize += names->nnames + 128; |
3d88e64d |
248 | ournames = sresize(ournames, namesize, struct fxp_name *); |
4c7f0d61 |
249 | } |
250 | |
251 | for (i = 0; i < names->nnames; i++) |
7d2c1789 |
252 | ournames[nnames++] = fxp_dup_name(&names->names[i]); |
4c7f0d61 |
253 | |
4c7f0d61 |
254 | fxp_free_names(names); |
255 | } |
256 | fxp_close(dirh); |
257 | |
258 | /* |
259 | * Now we have our filenames. Sort them by actual file |
260 | * name, and then output the longname parts. |
261 | */ |
262 | qsort(ournames, nnames, sizeof(*ournames), sftp_ls_compare); |
263 | |
264 | /* |
265 | * And print them. |
266 | */ |
7d2c1789 |
267 | for (i = 0; i < nnames; i++) { |
268 | printf("%s\n", ournames[i]->longname); |
269 | fxp_free_name(ournames[i]); |
270 | } |
271 | sfree(ournames); |
4c7f0d61 |
272 | } |
273 | |
274 | sfree(cdir); |
275 | |
df49ff19 |
276 | return 1; |
4c7f0d61 |
277 | } |
278 | |
279 | /* |
280 | * Change directories. We do this by canonifying the new name, then |
281 | * trying to OPENDIR it. Only if that succeeds do we set the new pwd. |
282 | */ |
32874aea |
283 | int sftp_cmd_cd(struct sftp_command *cmd) |
284 | { |
4c7f0d61 |
285 | struct fxp_handle *dirh; |
286 | char *dir; |
287 | |
fa3db767 |
288 | if (back == NULL) { |
289 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
290 | return 0; |
291 | } |
292 | |
4c7f0d61 |
293 | if (cmd->nwords < 2) |
f9e162aa |
294 | dir = dupstr(homedir); |
4c7f0d61 |
295 | else |
296 | dir = canonify(cmd->words[1]); |
297 | |
298 | if (!dir) { |
299 | printf("%s: %s\n", dir, fxp_error()); |
300 | return 0; |
301 | } |
302 | |
303 | dirh = fxp_opendir(dir); |
304 | if (!dirh) { |
305 | printf("Directory %s: %s\n", dir, fxp_error()); |
306 | sfree(dir); |
307 | return 0; |
308 | } |
309 | |
310 | fxp_close(dirh); |
311 | |
312 | sfree(pwd); |
313 | pwd = dir; |
314 | printf("Remote directory is now %s\n", pwd); |
315 | |
df49ff19 |
316 | return 1; |
4c7f0d61 |
317 | } |
318 | |
319 | /* |
4f2b387f |
320 | * Print current directory. Easy as pie. |
321 | */ |
322 | int sftp_cmd_pwd(struct sftp_command *cmd) |
323 | { |
fa3db767 |
324 | if (back == NULL) { |
325 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
326 | return 0; |
327 | } |
328 | |
4f2b387f |
329 | printf("Remote directory is %s\n", pwd); |
df49ff19 |
330 | return 1; |
4f2b387f |
331 | } |
332 | |
333 | /* |
d92624dc |
334 | * Get a file and save it at the local end. We have two very |
335 | * similar commands here: `get' and `reget', which differ in that |
336 | * `reget' checks for the existence of the destination file and |
337 | * starts from where a previous aborted transfer left off. |
4c7f0d61 |
338 | */ |
d92624dc |
339 | int sftp_general_get(struct sftp_command *cmd, int restart) |
32874aea |
340 | { |
4c7f0d61 |
341 | struct fxp_handle *fh; |
342 | char *fname, *outfname; |
343 | uint64 offset; |
344 | FILE *fp; |
df49ff19 |
345 | int ret; |
4c7f0d61 |
346 | |
fa3db767 |
347 | if (back == NULL) { |
348 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
349 | return 0; |
350 | } |
351 | |
4c7f0d61 |
352 | if (cmd->nwords < 2) { |
353 | printf("get: expects a filename\n"); |
354 | return 0; |
355 | } |
356 | |
357 | fname = canonify(cmd->words[1]); |
358 | if (!fname) { |
359 | printf("%s: %s\n", cmd->words[1], fxp_error()); |
360 | return 0; |
361 | } |
dcf8495c |
362 | outfname = (cmd->nwords == 2 ? |
363 | stripslashes(cmd->words[1], 0) : cmd->words[2]); |
4c7f0d61 |
364 | |
365 | fh = fxp_open(fname, SSH_FXF_READ); |
366 | if (!fh) { |
367 | printf("%s: %s\n", fname, fxp_error()); |
368 | sfree(fname); |
369 | return 0; |
370 | } |
d92624dc |
371 | |
372 | if (restart) { |
373 | fp = fopen(outfname, "rb+"); |
374 | } else { |
375 | fp = fopen(outfname, "wb"); |
376 | } |
377 | |
4c7f0d61 |
378 | if (!fp) { |
379 | printf("local: unable to open %s\n", outfname); |
32874aea |
380 | fxp_close(fh); |
4c7f0d61 |
381 | sfree(fname); |
382 | return 0; |
383 | } |
384 | |
d92624dc |
385 | if (restart) { |
386 | long posn; |
387 | fseek(fp, 0L, SEEK_END); |
388 | posn = ftell(fp); |
389 | printf("reget: restarting at file position %ld\n", posn); |
390 | offset = uint64_make(0, posn); |
391 | } else { |
392 | offset = uint64_make(0, 0); |
393 | } |
4c7f0d61 |
394 | |
d92624dc |
395 | printf("remote:%s => local:%s\n", fname, outfname); |
4c7f0d61 |
396 | |
397 | /* |
398 | * FIXME: we can use FXP_FSTAT here to get the file size, and |
399 | * thus put up a progress bar. |
400 | */ |
df49ff19 |
401 | ret = 1; |
4c7f0d61 |
402 | while (1) { |
403 | char buffer[4096]; |
404 | int len; |
405 | int wpos, wlen; |
406 | |
407 | len = fxp_read(fh, buffer, offset, sizeof(buffer)); |
32874aea |
408 | if ((len == -1 && fxp_error_type() == SSH_FX_EOF) || len == 0) |
4c7f0d61 |
409 | break; |
410 | if (len == -1) { |
411 | printf("error while reading: %s\n", fxp_error()); |
df49ff19 |
412 | ret = 0; |
4c7f0d61 |
413 | break; |
414 | } |
32874aea |
415 | |
4c7f0d61 |
416 | wpos = 0; |
417 | while (wpos < len) { |
32874aea |
418 | wlen = fwrite(buffer, 1, len - wpos, fp); |
4c7f0d61 |
419 | if (wlen <= 0) { |
420 | printf("error while writing local file\n"); |
df49ff19 |
421 | ret = 0; |
4c7f0d61 |
422 | break; |
423 | } |
424 | wpos += wlen; |
425 | } |
df49ff19 |
426 | if (wpos < len) { /* we had an error */ |
427 | ret = 0; |
4c7f0d61 |
428 | break; |
df49ff19 |
429 | } |
4c7f0d61 |
430 | offset = uint64_add32(offset, len); |
431 | } |
432 | |
433 | fclose(fp); |
434 | fxp_close(fh); |
435 | sfree(fname); |
436 | |
df49ff19 |
437 | return ret; |
4c7f0d61 |
438 | } |
d92624dc |
439 | int sftp_cmd_get(struct sftp_command *cmd) |
440 | { |
441 | return sftp_general_get(cmd, 0); |
442 | } |
443 | int sftp_cmd_reget(struct sftp_command *cmd) |
444 | { |
445 | return sftp_general_get(cmd, 1); |
446 | } |
4c7f0d61 |
447 | |
448 | /* |
d92624dc |
449 | * Send a file and store it at the remote end. We have two very |
450 | * similar commands here: `put' and `reput', which differ in that |
451 | * `reput' checks for the existence of the destination file and |
452 | * starts from where a previous aborted transfer left off. |
4c7f0d61 |
453 | */ |
d92624dc |
454 | int sftp_general_put(struct sftp_command *cmd, int restart) |
32874aea |
455 | { |
4c7f0d61 |
456 | struct fxp_handle *fh; |
457 | char *fname, *origoutfname, *outfname; |
458 | uint64 offset; |
459 | FILE *fp; |
df49ff19 |
460 | int ret; |
4c7f0d61 |
461 | |
fa3db767 |
462 | if (back == NULL) { |
463 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
464 | return 0; |
465 | } |
466 | |
4c7f0d61 |
467 | if (cmd->nwords < 2) { |
468 | printf("put: expects a filename\n"); |
469 | return 0; |
470 | } |
471 | |
472 | fname = cmd->words[1]; |
dcf8495c |
473 | origoutfname = (cmd->nwords == 2 ? |
474 | stripslashes(cmd->words[1], 1) : cmd->words[2]); |
4c7f0d61 |
475 | outfname = canonify(origoutfname); |
f9e162aa |
476 | if (!outfname) { |
4c7f0d61 |
477 | printf("%s: %s\n", origoutfname, fxp_error()); |
478 | return 0; |
479 | } |
480 | |
481 | fp = fopen(fname, "rb"); |
482 | if (!fp) { |
483 | printf("local: unable to open %s\n", fname); |
4c7f0d61 |
484 | sfree(outfname); |
485 | return 0; |
486 | } |
d92624dc |
487 | if (restart) { |
488 | fh = fxp_open(outfname, |
489 | SSH_FXF_WRITE); |
490 | } else { |
491 | fh = fxp_open(outfname, |
492 | SSH_FXF_WRITE | SSH_FXF_CREAT | SSH_FXF_TRUNC); |
493 | } |
4c7f0d61 |
494 | if (!fh) { |
495 | printf("%s: %s\n", outfname, fxp_error()); |
496 | sfree(outfname); |
497 | return 0; |
498 | } |
499 | |
d92624dc |
500 | if (restart) { |
501 | char decbuf[30]; |
502 | struct fxp_attrs attrs; |
503 | if (!fxp_fstat(fh, &attrs)) { |
504 | printf("read size of %s: %s\n", outfname, fxp_error()); |
505 | sfree(outfname); |
506 | return 0; |
507 | } |
508 | if (!(attrs.flags & SSH_FILEXFER_ATTR_SIZE)) { |
509 | printf("read size of %s: size was not given\n", outfname); |
510 | sfree(outfname); |
511 | return 0; |
512 | } |
513 | offset = attrs.size; |
514 | uint64_decimal(offset, decbuf); |
515 | printf("reput: restarting at file position %s\n", decbuf); |
516 | if (uint64_compare(offset, uint64_make(0, LONG_MAX)) > 0) { |
517 | printf("reput: remote file is larger than we can deal with\n"); |
518 | sfree(outfname); |
519 | return 0; |
520 | } |
521 | if (fseek(fp, offset.lo, SEEK_SET) != 0) |
522 | fseek(fp, 0, SEEK_END); /* *shrug* */ |
523 | } else { |
524 | offset = uint64_make(0, 0); |
525 | } |
4c7f0d61 |
526 | |
d92624dc |
527 | printf("local:%s => remote:%s\n", fname, outfname); |
4c7f0d61 |
528 | |
529 | /* |
530 | * FIXME: we can use FXP_FSTAT here to get the file size, and |
531 | * thus put up a progress bar. |
532 | */ |
df49ff19 |
533 | ret = 1; |
4c7f0d61 |
534 | while (1) { |
535 | char buffer[4096]; |
536 | int len; |
537 | |
f9e162aa |
538 | len = fread(buffer, 1, sizeof(buffer), fp); |
4c7f0d61 |
539 | if (len == -1) { |
540 | printf("error while reading local file\n"); |
df49ff19 |
541 | ret = 0; |
4c7f0d61 |
542 | break; |
543 | } else if (len == 0) { |
544 | break; |
545 | } |
f9e162aa |
546 | if (!fxp_write(fh, buffer, offset, len)) { |
4c7f0d61 |
547 | printf("error while writing: %s\n", fxp_error()); |
df49ff19 |
548 | ret = 0; |
4c7f0d61 |
549 | break; |
550 | } |
551 | offset = uint64_add32(offset, len); |
552 | } |
553 | |
554 | fxp_close(fh); |
555 | fclose(fp); |
556 | sfree(outfname); |
557 | |
df49ff19 |
558 | return ret; |
4c7f0d61 |
559 | } |
d92624dc |
560 | int sftp_cmd_put(struct sftp_command *cmd) |
561 | { |
562 | return sftp_general_put(cmd, 0); |
563 | } |
564 | int sftp_cmd_reput(struct sftp_command *cmd) |
565 | { |
566 | return sftp_general_put(cmd, 1); |
567 | } |
4c7f0d61 |
568 | |
9954aaa3 |
569 | int sftp_cmd_mkdir(struct sftp_command *cmd) |
570 | { |
571 | char *dir; |
572 | int result; |
573 | |
fa3db767 |
574 | if (back == NULL) { |
575 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
576 | return 0; |
577 | } |
9954aaa3 |
578 | |
579 | if (cmd->nwords < 2) { |
580 | printf("mkdir: expects a directory\n"); |
581 | return 0; |
582 | } |
583 | |
584 | dir = canonify(cmd->words[1]); |
585 | if (!dir) { |
586 | printf("%s: %s\n", dir, fxp_error()); |
587 | return 0; |
588 | } |
589 | |
590 | result = fxp_mkdir(dir); |
591 | if (!result) { |
592 | printf("mkdir %s: %s\n", dir, fxp_error()); |
593 | sfree(dir); |
594 | return 0; |
595 | } |
596 | |
d92624dc |
597 | sfree(dir); |
df49ff19 |
598 | return 1; |
9954aaa3 |
599 | } |
600 | |
601 | int sftp_cmd_rmdir(struct sftp_command *cmd) |
602 | { |
603 | char *dir; |
604 | int result; |
605 | |
fa3db767 |
606 | if (back == NULL) { |
607 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
608 | return 0; |
609 | } |
9954aaa3 |
610 | |
611 | if (cmd->nwords < 2) { |
612 | printf("rmdir: expects a directory\n"); |
613 | return 0; |
614 | } |
615 | |
616 | dir = canonify(cmd->words[1]); |
617 | if (!dir) { |
618 | printf("%s: %s\n", dir, fxp_error()); |
619 | return 0; |
620 | } |
621 | |
622 | result = fxp_rmdir(dir); |
623 | if (!result) { |
624 | printf("rmdir %s: %s\n", dir, fxp_error()); |
625 | sfree(dir); |
626 | return 0; |
627 | } |
628 | |
d92624dc |
629 | sfree(dir); |
df49ff19 |
630 | return 1; |
9954aaa3 |
631 | } |
632 | |
633 | int sftp_cmd_rm(struct sftp_command *cmd) |
634 | { |
635 | char *fname; |
636 | int result; |
637 | |
fa3db767 |
638 | if (back == NULL) { |
639 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
640 | return 0; |
641 | } |
642 | |
9954aaa3 |
643 | if (cmd->nwords < 2) { |
644 | printf("rm: expects a filename\n"); |
645 | return 0; |
646 | } |
647 | |
648 | fname = canonify(cmd->words[1]); |
649 | if (!fname) { |
650 | printf("%s: %s\n", fname, fxp_error()); |
651 | return 0; |
652 | } |
653 | |
d92624dc |
654 | result = fxp_remove(fname); |
9954aaa3 |
655 | if (!result) { |
656 | printf("rm %s: %s\n", fname, fxp_error()); |
657 | sfree(fname); |
658 | return 0; |
659 | } |
660 | |
d92624dc |
661 | sfree(fname); |
df49ff19 |
662 | return 1; |
d92624dc |
663 | } |
664 | |
665 | int sftp_cmd_mv(struct sftp_command *cmd) |
666 | { |
667 | char *srcfname, *dstfname; |
668 | int result; |
669 | |
fa3db767 |
670 | if (back == NULL) { |
671 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
672 | return 0; |
673 | } |
674 | |
d92624dc |
675 | if (cmd->nwords < 3) { |
676 | printf("mv: expects two filenames\n"); |
9954aaa3 |
677 | return 0; |
d92624dc |
678 | } |
679 | srcfname = canonify(cmd->words[1]); |
680 | if (!srcfname) { |
681 | printf("%s: %s\n", srcfname, fxp_error()); |
682 | return 0; |
683 | } |
684 | |
685 | dstfname = canonify(cmd->words[2]); |
686 | if (!dstfname) { |
687 | printf("%s: %s\n", dstfname, fxp_error()); |
688 | return 0; |
689 | } |
9954aaa3 |
690 | |
d92624dc |
691 | result = fxp_rename(srcfname, dstfname); |
692 | if (!result) { |
693 | char const *error = fxp_error(); |
694 | struct fxp_attrs attrs; |
695 | |
696 | /* |
697 | * The move might have failed because dstfname pointed at a |
698 | * directory. We check this possibility now: if dstfname |
699 | * _is_ a directory, we re-attempt the move by appending |
700 | * the basename of srcfname to dstfname. |
701 | */ |
702 | result = fxp_stat(dstfname, &attrs); |
703 | if (result && |
704 | (attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) && |
705 | (attrs.permissions & 0040000)) { |
706 | char *p; |
707 | char *newname, *newcanon; |
708 | printf("(destination %s is a directory)\n", dstfname); |
709 | p = srcfname + strlen(srcfname); |
710 | while (p > srcfname && p[-1] != '/') p--; |
711 | newname = dupcat(dstfname, "/", p, NULL); |
712 | newcanon = canonify(newname); |
713 | sfree(newname); |
714 | if (newcanon) { |
715 | sfree(dstfname); |
716 | dstfname = newcanon; |
717 | result = fxp_rename(srcfname, dstfname); |
718 | error = result ? NULL : fxp_error(); |
719 | } |
720 | } |
721 | if (error) { |
722 | printf("mv %s %s: %s\n", srcfname, dstfname, error); |
723 | sfree(srcfname); |
724 | sfree(dstfname); |
725 | return 0; |
726 | } |
727 | } |
728 | printf("%s -> %s\n", srcfname, dstfname); |
729 | |
730 | sfree(srcfname); |
731 | sfree(dstfname); |
df49ff19 |
732 | return 1; |
9954aaa3 |
733 | } |
734 | |
d92624dc |
735 | int sftp_cmd_chmod(struct sftp_command *cmd) |
736 | { |
737 | char *fname, *mode; |
738 | int result; |
739 | struct fxp_attrs attrs; |
740 | unsigned attrs_clr, attrs_xor, oldperms, newperms; |
741 | |
fa3db767 |
742 | if (back == NULL) { |
743 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
744 | return 0; |
745 | } |
746 | |
d92624dc |
747 | if (cmd->nwords < 3) { |
748 | printf("chmod: expects a mode specifier and a filename\n"); |
749 | return 0; |
750 | } |
751 | |
752 | /* |
753 | * Attempt to parse the mode specifier in cmd->words[1]. We |
754 | * don't support the full horror of Unix chmod; instead we |
755 | * support a much simpler syntax in which the user can either |
756 | * specify an octal number, or a comma-separated sequence of |
757 | * [ugoa]*[-+=][rwxst]+. (The initial [ugoa] sequence may |
758 | * _only_ be omitted if the only attribute mentioned is t, |
759 | * since all others require a user/group/other specification. |
760 | * Additionally, the s attribute may not be specified for any |
761 | * [ugoa] specifications other than exactly u or exactly g. |
762 | */ |
763 | attrs_clr = attrs_xor = 0; |
764 | mode = cmd->words[1]; |
765 | if (mode[0] >= '0' && mode[0] <= '9') { |
766 | if (mode[strspn(mode, "01234567")]) { |
767 | printf("chmod: numeric file modes should" |
768 | " contain digits 0-7 only\n"); |
769 | return 0; |
770 | } |
771 | attrs_clr = 07777; |
772 | sscanf(mode, "%o", &attrs_xor); |
773 | attrs_xor &= attrs_clr; |
774 | } else { |
775 | while (*mode) { |
776 | char *modebegin = mode; |
777 | unsigned subset, perms; |
778 | int action; |
779 | |
780 | subset = 0; |
781 | while (*mode && *mode != ',' && |
782 | *mode != '+' && *mode != '-' && *mode != '=') { |
783 | switch (*mode) { |
784 | case 'u': subset |= 04700; break; /* setuid, user perms */ |
785 | case 'g': subset |= 02070; break; /* setgid, group perms */ |
786 | case 'o': subset |= 00007; break; /* just other perms */ |
787 | case 'a': subset |= 06777; break; /* all of the above */ |
788 | default: |
789 | printf("chmod: file mode '%.*s' contains unrecognised" |
790 | " user/group/other specifier '%c'\n", |
791 | strcspn(modebegin, ","), modebegin, *mode); |
792 | return 0; |
793 | } |
794 | mode++; |
795 | } |
796 | if (!*mode || *mode == ',') { |
797 | printf("chmod: file mode '%.*s' is incomplete\n", |
798 | strcspn(modebegin, ","), modebegin); |
799 | return 0; |
800 | } |
801 | action = *mode++; |
802 | if (!*mode || *mode == ',') { |
803 | printf("chmod: file mode '%.*s' is incomplete\n", |
804 | strcspn(modebegin, ","), modebegin); |
805 | return 0; |
806 | } |
807 | perms = 0; |
808 | while (*mode && *mode != ',') { |
809 | switch (*mode) { |
810 | case 'r': perms |= 00444; break; |
811 | case 'w': perms |= 00222; break; |
812 | case 'x': perms |= 00111; break; |
813 | case 't': perms |= 01000; subset |= 01000; break; |
814 | case 's': |
815 | if ((subset & 06777) != 04700 && |
816 | (subset & 06777) != 02070) { |
817 | printf("chmod: file mode '%.*s': set[ug]id bit should" |
818 | " be used with exactly one of u or g only\n", |
819 | strcspn(modebegin, ","), modebegin); |
820 | return 0; |
821 | } |
822 | perms |= 06000; |
823 | break; |
824 | default: |
825 | printf("chmod: file mode '%.*s' contains unrecognised" |
826 | " permission specifier '%c'\n", |
827 | strcspn(modebegin, ","), modebegin, *mode); |
828 | return 0; |
829 | } |
830 | mode++; |
831 | } |
832 | if (!(subset & 06777) && (perms &~ subset)) { |
833 | printf("chmod: file mode '%.*s' contains no user/group/other" |
834 | " specifier and permissions other than 't' \n", |
7a4b5114 |
835 | strcspn(modebegin, ","), modebegin); |
d92624dc |
836 | return 0; |
837 | } |
838 | perms &= subset; |
839 | switch (action) { |
840 | case '+': |
841 | attrs_clr |= perms; |
842 | attrs_xor |= perms; |
843 | break; |
844 | case '-': |
845 | attrs_clr |= perms; |
846 | attrs_xor &= ~perms; |
847 | break; |
848 | case '=': |
849 | attrs_clr |= subset; |
850 | attrs_xor |= perms; |
851 | break; |
852 | } |
853 | if (*mode) mode++; /* eat comma */ |
854 | } |
855 | } |
856 | |
857 | fname = canonify(cmd->words[2]); |
858 | if (!fname) { |
859 | printf("%s: %s\n", fname, fxp_error()); |
860 | return 0; |
861 | } |
862 | |
863 | result = fxp_stat(fname, &attrs); |
864 | if (!result || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS)) { |
865 | printf("get attrs for %s: %s\n", fname, |
866 | result ? "file permissions not provided" : fxp_error()); |
867 | sfree(fname); |
868 | return 0; |
869 | } |
870 | |
871 | attrs.flags = SSH_FILEXFER_ATTR_PERMISSIONS; /* perms _only_ */ |
872 | oldperms = attrs.permissions & 07777; |
873 | attrs.permissions &= ~attrs_clr; |
874 | attrs.permissions ^= attrs_xor; |
875 | newperms = attrs.permissions & 07777; |
876 | |
877 | result = fxp_setstat(fname, attrs); |
878 | |
879 | if (!result) { |
880 | printf("set attrs for %s: %s\n", fname, fxp_error()); |
881 | sfree(fname); |
882 | return 0; |
883 | } |
884 | |
885 | printf("%s: %04o -> %04o\n", fname, oldperms, newperms); |
886 | |
887 | sfree(fname); |
df49ff19 |
888 | return 1; |
d92624dc |
889 | } |
9954aaa3 |
890 | |
fa3db767 |
891 | static int sftp_cmd_open(struct sftp_command *cmd) |
892 | { |
893 | if (back != NULL) { |
894 | printf("psftp: already connected\n"); |
895 | return 0; |
896 | } |
897 | |
898 | if (cmd->nwords < 2) { |
899 | printf("open: expects a host name\n"); |
900 | return 0; |
901 | } |
902 | |
903 | if (psftp_connect(cmd->words[1], NULL, 0)) { |
904 | back = NULL; /* connection is already closed */ |
905 | return -1; /* this is fatal */ |
906 | } |
907 | do_sftp_init(); |
df49ff19 |
908 | return 1; |
fa3db767 |
909 | } |
910 | |
3af97463 |
911 | static int sftp_cmd_lcd(struct sftp_command *cmd) |
912 | { |
913 | char *currdir; |
914 | int len; |
915 | |
916 | if (cmd->nwords < 2) { |
917 | printf("lcd: expects a local directory name\n"); |
918 | return 0; |
919 | } |
920 | |
921 | if (!SetCurrentDirectory(cmd->words[1])) { |
922 | LPVOID message; |
923 | int i; |
924 | FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | |
925 | FORMAT_MESSAGE_FROM_SYSTEM | |
926 | FORMAT_MESSAGE_IGNORE_INSERTS, |
927 | NULL, GetLastError(), |
928 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
929 | (LPTSTR)&message, 0, NULL); |
930 | i = strcspn((char *)message, "\n"); |
931 | printf("lcd: unable to change directory: %.*s\n", i, (LPCTSTR)message); |
932 | LocalFree(message); |
933 | return 0; |
934 | } |
935 | |
3d88e64d |
936 | currdir = snewn(256, char); |
3af97463 |
937 | len = GetCurrentDirectory(256, currdir); |
938 | if (len > 256) |
3d88e64d |
939 | currdir = sresize(currdir, len, char); |
3af97463 |
940 | GetCurrentDirectory(len, currdir); |
941 | printf("New local directory is %s\n", currdir); |
942 | sfree(currdir); |
943 | |
944 | return 1; |
945 | } |
946 | |
947 | static int sftp_cmd_lpwd(struct sftp_command *cmd) |
948 | { |
949 | char *currdir; |
950 | int len; |
951 | |
3d88e64d |
952 | currdir = snewn(256, char); |
3af97463 |
953 | len = GetCurrentDirectory(256, currdir); |
954 | if (len > 256) |
3d88e64d |
955 | currdir = sresize(currdir, len, char); |
3af97463 |
956 | GetCurrentDirectory(len, currdir); |
957 | printf("Current local directory is %s\n", currdir); |
958 | sfree(currdir); |
959 | |
960 | return 1; |
961 | } |
962 | |
963 | static int sftp_cmd_pling(struct sftp_command *cmd) |
964 | { |
965 | int exitcode; |
966 | |
967 | exitcode = system(cmd->words[1]); |
968 | return (exitcode == 0); |
969 | } |
970 | |
bf5240cd |
971 | static int sftp_cmd_help(struct sftp_command *cmd); |
972 | |
4c7f0d61 |
973 | static struct sftp_cmd_lookup { |
974 | char *name; |
bf5240cd |
975 | /* |
976 | * For help purposes, there are two kinds of command: |
977 | * |
978 | * - primary commands, in which `longhelp' is non-NULL. In |
979 | * this case `shorthelp' is descriptive text, and `longhelp' |
980 | * is longer descriptive text intended to be printed after |
981 | * the command name. |
982 | * |
983 | * - alias commands, in which `longhelp' is NULL. In this case |
984 | * `shorthelp' is the name of a primary command, which |
985 | * contains the help that should double up for this command. |
986 | */ |
3af97463 |
987 | int listed; /* do we list this in primary help? */ |
bf5240cd |
988 | char *shorthelp; |
989 | char *longhelp; |
32874aea |
990 | int (*obey) (struct sftp_command *); |
4c7f0d61 |
991 | } sftp_lookup[] = { |
992 | /* |
993 | * List of sftp commands. This is binary-searched so it MUST be |
994 | * in ASCII order. |
995 | */ |
32874aea |
996 | { |
3af97463 |
997 | "!", TRUE, "run a local Windows command", |
998 | "<command>\n" |
999 | " Runs a local Windows command. For example, \"!del myfile\".\n", |
1000 | sftp_cmd_pling |
1001 | }, |
1002 | { |
1003 | "bye", TRUE, "finish your SFTP session", |
bf5240cd |
1004 | "\n" |
1005 | " Terminates your SFTP session and quits the PSFTP program.\n", |
1006 | sftp_cmd_quit |
1007 | }, |
1008 | { |
3af97463 |
1009 | "cd", TRUE, "change your remote working directory", |
bf5240cd |
1010 | " [ <New working directory> ]\n" |
1011 | " Change the remote working directory for your SFTP session.\n" |
1012 | " If a new working directory is not supplied, you will be\n" |
1013 | " returned to your home directory.\n", |
1014 | sftp_cmd_cd |
1015 | }, |
1016 | { |
3af97463 |
1017 | "chmod", TRUE, "change file permissions and modes", |
bf5240cd |
1018 | " ( <octal-digits> | <modifiers> ) <filename>\n" |
1019 | " Change the file permissions on a file or directory.\n" |
1020 | " <octal-digits> can be any octal Unix permission specifier.\n" |
1021 | " Alternatively, <modifiers> can include:\n" |
1022 | " u+r make file readable by owning user\n" |
1023 | " u+w make file writable by owning user\n" |
1024 | " u+x make file executable by owning user\n" |
1025 | " u-r make file not readable by owning user\n" |
1026 | " [also u-w, u-x]\n" |
1027 | " g+r make file readable by members of owning group\n" |
1028 | " [also g+w, g+x, g-r, g-w, g-x]\n" |
1029 | " o+r make file readable by all other users\n" |
1030 | " [also o+w, o+x, o-r, o-w, o-x]\n" |
1031 | " a+r make file readable by absolutely everybody\n" |
1032 | " [also a+w, a+x, a-r, a-w, a-x]\n" |
1033 | " u+s enable the Unix set-user-ID bit\n" |
1034 | " u-s disable the Unix set-user-ID bit\n" |
1035 | " g+s enable the Unix set-group-ID bit\n" |
1036 | " g-s disable the Unix set-group-ID bit\n" |
1037 | " +t enable the Unix \"sticky bit\"\n" |
1038 | " You can give more than one modifier for the same user (\"g-rwx\"), and\n" |
1039 | " more than one user for the same modifier (\"ug+w\"). You can\n" |
1040 | " use commas to separate different modifiers (\"u+rwx,g+s\").\n", |
1041 | sftp_cmd_chmod |
1042 | }, |
1043 | { |
3af97463 |
1044 | "del", TRUE, "delete a file", |
bf5240cd |
1045 | " <filename>\n" |
1046 | " Delete a file.\n", |
1047 | sftp_cmd_rm |
1048 | }, |
1049 | { |
3af97463 |
1050 | "delete", FALSE, "del", NULL, sftp_cmd_rm |
bf5240cd |
1051 | }, |
1052 | { |
3af97463 |
1053 | "dir", TRUE, "list contents of a remote directory", |
bf5240cd |
1054 | " [ <directory-name> ]\n" |
1055 | " List the contents of a specified directory on the server.\n" |
1056 | " If <directory-name> is not given, the current working directory\n" |
1057 | " will be listed.\n", |
1058 | sftp_cmd_ls |
1059 | }, |
1060 | { |
3af97463 |
1061 | "exit", TRUE, "bye", NULL, sftp_cmd_quit |
bf5240cd |
1062 | }, |
1063 | { |
3af97463 |
1064 | "get", TRUE, "download a file from the server to your local machine", |
bf5240cd |
1065 | " <filename> [ <local-filename> ]\n" |
1066 | " Downloads a file on the server and stores it locally under\n" |
1067 | " the same name, or under a different one if you supply the\n" |
1068 | " argument <local-filename>.\n", |
1069 | sftp_cmd_get |
1070 | }, |
1071 | { |
3af97463 |
1072 | "help", TRUE, "give help", |
bf5240cd |
1073 | " [ <command> [ <command> ... ] ]\n" |
1074 | " Give general help if no commands are specified.\n" |
1075 | " If one or more commands are specified, give specific help on\n" |
1076 | " those particular commands.\n", |
1077 | sftp_cmd_help |
1078 | }, |
1079 | { |
3af97463 |
1080 | "lcd", TRUE, "change local working directory", |
1081 | " <local-directory-name>\n" |
1082 | " Change the local working directory of the PSFTP program (the\n" |
1083 | " default location where the \"get\" command will save files).\n", |
1084 | sftp_cmd_lcd |
1085 | }, |
1086 | { |
1087 | "lpwd", TRUE, "print local working directory", |
1088 | "\n" |
1089 | " Print the local working directory of the PSFTP program (the\n" |
1090 | " default location where the \"get\" command will save files).\n", |
1091 | sftp_cmd_lpwd |
1092 | }, |
1093 | { |
1094 | "ls", TRUE, "dir", NULL, |
bf5240cd |
1095 | sftp_cmd_ls |
1096 | }, |
1097 | { |
3af97463 |
1098 | "mkdir", TRUE, "create a directory on the remote server", |
bf5240cd |
1099 | " <directory-name>\n" |
1100 | " Creates a directory with the given name on the server.\n", |
1101 | sftp_cmd_mkdir |
1102 | }, |
1103 | { |
3af97463 |
1104 | "mv", TRUE, "move or rename a file on the remote server", |
bf5240cd |
1105 | " <source-filename> <destination-filename>\n" |
1106 | " Moves or renames the file <source-filename> on the server,\n" |
1107 | " so that it is accessible under the name <destination-filename>.\n", |
1108 | sftp_cmd_mv |
1109 | }, |
1110 | { |
3af97463 |
1111 | "open", TRUE, "connect to a host", |
fa3db767 |
1112 | " [<user>@]<hostname>\n" |
1113 | " Establishes an SFTP connection to a given host. Only usable\n" |
1114 | " when you did not already specify a host name on the command\n" |
1115 | " line.\n", |
1116 | sftp_cmd_open |
1117 | }, |
1118 | { |
56542985 |
1119 | "put", TRUE, "upload a file from your local machine to the server", |
1120 | " <filename> [ <remote-filename> ]\n" |
1121 | " Uploads a file to the server and stores it there under\n" |
1122 | " the same name, or under a different one if you supply the\n" |
1123 | " argument <remote-filename>.\n", |
1124 | sftp_cmd_put |
1125 | }, |
1126 | { |
3af97463 |
1127 | "pwd", TRUE, "print your remote working directory", |
4f2b387f |
1128 | "\n" |
1129 | " Print the current remote working directory for your SFTP session.\n", |
1130 | sftp_cmd_pwd |
1131 | }, |
1132 | { |
3af97463 |
1133 | "quit", TRUE, "bye", NULL, |
bf5240cd |
1134 | sftp_cmd_quit |
1135 | }, |
1136 | { |
3af97463 |
1137 | "reget", TRUE, "continue downloading a file", |
bf5240cd |
1138 | " <filename> [ <local-filename> ]\n" |
1139 | " Works exactly like the \"get\" command, but the local file\n" |
1140 | " must already exist. The download will begin at the end of the\n" |
1141 | " file. This is for resuming a download that was interrupted.\n", |
1142 | sftp_cmd_reget |
1143 | }, |
1144 | { |
3af97463 |
1145 | "ren", TRUE, "mv", NULL, |
bf5240cd |
1146 | sftp_cmd_mv |
1147 | }, |
1148 | { |
3af97463 |
1149 | "rename", FALSE, "mv", NULL, |
bf5240cd |
1150 | sftp_cmd_mv |
1151 | }, |
1152 | { |
3af97463 |
1153 | "reput", TRUE, "continue uploading a file", |
bf5240cd |
1154 | " <filename> [ <remote-filename> ]\n" |
1155 | " Works exactly like the \"put\" command, but the remote file\n" |
1156 | " must already exist. The upload will begin at the end of the\n" |
1157 | " file. This is for resuming an upload that was interrupted.\n", |
1158 | sftp_cmd_reput |
1159 | }, |
1160 | { |
3af97463 |
1161 | "rm", TRUE, "del", NULL, |
bf5240cd |
1162 | sftp_cmd_rm |
1163 | }, |
1164 | { |
3af97463 |
1165 | "rmdir", TRUE, "remove a directory on the remote server", |
bf5240cd |
1166 | " <directory-name>\n" |
1167 | " Removes the directory with the given name on the server.\n" |
1168 | " The directory will not be removed unless it is empty.\n", |
1169 | sftp_cmd_rmdir |
1170 | } |
1171 | }; |
1172 | |
1173 | const struct sftp_cmd_lookup *lookup_command(char *name) |
1174 | { |
1175 | int i, j, k, cmp; |
1176 | |
1177 | i = -1; |
1178 | j = sizeof(sftp_lookup) / sizeof(*sftp_lookup); |
1179 | while (j - i > 1) { |
1180 | k = (j + i) / 2; |
1181 | cmp = strcmp(name, sftp_lookup[k].name); |
1182 | if (cmp < 0) |
1183 | j = k; |
1184 | else if (cmp > 0) |
1185 | i = k; |
1186 | else { |
1187 | return &sftp_lookup[k]; |
1188 | } |
1189 | } |
1190 | return NULL; |
1191 | } |
1192 | |
1193 | static int sftp_cmd_help(struct sftp_command *cmd) |
1194 | { |
1195 | int i; |
1196 | if (cmd->nwords == 1) { |
1197 | /* |
1198 | * Give short help on each command. |
1199 | */ |
1200 | int maxlen; |
1201 | maxlen = 0; |
1202 | for (i = 0; i < sizeof(sftp_lookup) / sizeof(*sftp_lookup); i++) { |
3af97463 |
1203 | int len; |
1204 | if (!sftp_lookup[i].listed) |
1205 | continue; |
1206 | len = strlen(sftp_lookup[i].name); |
bf5240cd |
1207 | if (maxlen < len) |
1208 | maxlen = len; |
1209 | } |
1210 | for (i = 0; i < sizeof(sftp_lookup) / sizeof(*sftp_lookup); i++) { |
1211 | const struct sftp_cmd_lookup *lookup; |
3af97463 |
1212 | if (!sftp_lookup[i].listed) |
1213 | continue; |
bf5240cd |
1214 | lookup = &sftp_lookup[i]; |
1215 | printf("%-*s", maxlen+2, lookup->name); |
1216 | if (lookup->longhelp == NULL) |
1217 | lookup = lookup_command(lookup->shorthelp); |
1218 | printf("%s\n", lookup->shorthelp); |
1219 | } |
1220 | } else { |
1221 | /* |
1222 | * Give long help on specific commands. |
1223 | */ |
1224 | for (i = 1; i < cmd->nwords; i++) { |
1225 | const struct sftp_cmd_lookup *lookup; |
1226 | lookup = lookup_command(cmd->words[i]); |
1227 | if (!lookup) { |
1228 | printf("help: %s: command not found\n", cmd->words[i]); |
1229 | } else { |
1230 | printf("%s", lookup->name); |
1231 | if (lookup->longhelp == NULL) |
1232 | lookup = lookup_command(lookup->shorthelp); |
1233 | printf("%s", lookup->longhelp); |
1234 | } |
1235 | } |
1236 | } |
df49ff19 |
1237 | return 1; |
bf5240cd |
1238 | } |
4c7f0d61 |
1239 | |
1240 | /* ---------------------------------------------------------------------- |
1241 | * Command line reading and parsing. |
1242 | */ |
9954aaa3 |
1243 | struct sftp_command *sftp_getcmd(FILE *fp, int mode, int modeflags) |
32874aea |
1244 | { |
4c7f0d61 |
1245 | char *line; |
1246 | int linelen, linesize; |
1247 | struct sftp_command *cmd; |
1248 | char *p, *q, *r; |
1249 | int quoting; |
1250 | |
df49ff19 |
1251 | if ((mode == 0) || (modeflags & 1)) { |
1252 | printf("psftp> "); |
1253 | } |
4c7f0d61 |
1254 | fflush(stdout); |
1255 | |
3d88e64d |
1256 | cmd = snew(struct sftp_command); |
4c7f0d61 |
1257 | cmd->words = NULL; |
1258 | cmd->nwords = 0; |
1259 | cmd->wordssize = 0; |
1260 | |
1261 | line = NULL; |
1262 | linesize = linelen = 0; |
1263 | while (1) { |
1264 | int len; |
1265 | char *ret; |
1266 | |
1267 | linesize += 512; |
3d88e64d |
1268 | line = sresize(line, linesize, char); |
9954aaa3 |
1269 | ret = fgets(line + linelen, linesize - linelen, fp); |
4c7f0d61 |
1270 | |
1271 | if (!ret || (linelen == 0 && line[0] == '\0')) { |
1272 | cmd->obey = sftp_cmd_quit; |
d13c2ee9 |
1273 | if ((mode == 0) || (modeflags & 1)) |
1274 | printf("quit\n"); |
4c7f0d61 |
1275 | return cmd; /* eof */ |
1276 | } |
32874aea |
1277 | len = linelen + strlen(line + linelen); |
4c7f0d61 |
1278 | linelen += len; |
32874aea |
1279 | if (line[linelen - 1] == '\n') { |
4c7f0d61 |
1280 | linelen--; |
1281 | line[linelen] = '\0'; |
1282 | break; |
1283 | } |
1284 | } |
df49ff19 |
1285 | if (modeflags & 1) { |
1286 | printf("%s\n", line); |
1287 | } |
4c7f0d61 |
1288 | |
4c7f0d61 |
1289 | p = line; |
3af97463 |
1290 | while (*p && (*p == ' ' || *p == '\t')) |
1291 | p++; |
1292 | |
1293 | if (*p == '!') { |
1294 | /* |
1295 | * Special case: the ! command. This is always parsed as |
1296 | * exactly two words: one containing the !, and the second |
1297 | * containing everything else on the line. |
1298 | */ |
1299 | cmd->nwords = cmd->wordssize = 2; |
3d88e64d |
1300 | cmd->words = sresize(cmd->words, cmd->wordssize, char *); |
3af97463 |
1301 | cmd->words[0] = "!"; |
1302 | cmd->words[1] = p+1; |
1303 | } else { |
1304 | |
1305 | /* |
1306 | * Parse the command line into words. The syntax is: |
1307 | * - double quotes are removed, but cause spaces within to be |
1308 | * treated as non-separating. |
1309 | * - a double-doublequote pair is a literal double quote, inside |
1310 | * _or_ outside quotes. Like this: |
1311 | * |
1312 | * firstword "second word" "this has ""quotes"" in" and""this"" |
1313 | * |
1314 | * becomes |
1315 | * |
1316 | * >firstword< |
1317 | * >second word< |
1318 | * >this has "quotes" in< |
1319 | * >and"this"< |
1320 | */ |
4c7f0d61 |
1321 | while (*p) { |
3af97463 |
1322 | /* skip whitespace */ |
1323 | while (*p && (*p == ' ' || *p == '\t')) |
1324 | p++; |
1325 | /* mark start of word */ |
1326 | q = r = p; /* q sits at start, r writes word */ |
1327 | quoting = 0; |
1328 | while (*p) { |
1329 | if (!quoting && (*p == ' ' || *p == '\t')) |
1330 | break; /* reached end of word */ |
1331 | else if (*p == '"' && p[1] == '"') |
1332 | p += 2, *r++ = '"'; /* a literal quote */ |
1333 | else if (*p == '"') |
1334 | p++, quoting = !quoting; |
1335 | else |
1336 | *r++ = *p++; |
1337 | } |
1338 | if (*p) |
1339 | p++; /* skip over the whitespace */ |
1340 | *r = '\0'; |
1341 | if (cmd->nwords >= cmd->wordssize) { |
1342 | cmd->wordssize = cmd->nwords + 16; |
3d88e64d |
1343 | cmd->words = sresize(cmd->words, cmd->wordssize, char *); |
3af97463 |
1344 | } |
1345 | cmd->words[cmd->nwords++] = q; |
4c7f0d61 |
1346 | } |
4c7f0d61 |
1347 | } |
1348 | |
1349 | /* |
1350 | * Now parse the first word and assign a function. |
1351 | */ |
1352 | |
1353 | if (cmd->nwords == 0) |
1354 | cmd->obey = sftp_cmd_null; |
1355 | else { |
bf5240cd |
1356 | const struct sftp_cmd_lookup *lookup; |
1357 | lookup = lookup_command(cmd->words[0]); |
1358 | if (!lookup) |
1359 | cmd->obey = sftp_cmd_unknown; |
1360 | else |
1361 | cmd->obey = lookup->obey; |
4c7f0d61 |
1362 | } |
1363 | |
1364 | return cmd; |
1365 | } |
1366 | |
774204f5 |
1367 | static int do_sftp_init(void) |
32874aea |
1368 | { |
4c7f0d61 |
1369 | /* |
1370 | * Do protocol initialisation. |
1371 | */ |
1372 | if (!fxp_init()) { |
1373 | fprintf(stderr, |
32874aea |
1374 | "Fatal: unable to initialise SFTP: %s\n", fxp_error()); |
774204f5 |
1375 | return 1; /* failure */ |
4c7f0d61 |
1376 | } |
1377 | |
1378 | /* |
1379 | * Find out where our home directory is. |
1380 | */ |
f9e162aa |
1381 | homedir = fxp_realpath("."); |
4c7f0d61 |
1382 | if (!homedir) { |
1383 | fprintf(stderr, |
1384 | "Warning: failed to resolve home directory: %s\n", |
1385 | fxp_error()); |
1386 | homedir = dupstr("."); |
1387 | } else { |
1388 | printf("Remote working directory is %s\n", homedir); |
1389 | } |
1390 | pwd = dupstr(homedir); |
774204f5 |
1391 | return 0; |
fa3db767 |
1392 | } |
1393 | |
1394 | void do_sftp(int mode, int modeflags, char *batchfile) |
1395 | { |
1396 | FILE *fp; |
df49ff19 |
1397 | int ret; |
4c7f0d61 |
1398 | |
9954aaa3 |
1399 | /* |
1400 | * Batch mode? |
4c7f0d61 |
1401 | */ |
9954aaa3 |
1402 | if (mode == 0) { |
1403 | |
1404 | /* ------------------------------------------------------------------ |
1405 | * Now we're ready to do Real Stuff. |
1406 | */ |
1407 | while (1) { |
df49ff19 |
1408 | struct sftp_command *cmd; |
1409 | cmd = sftp_getcmd(stdin, 0, 0); |
1410 | if (!cmd) |
1411 | break; |
1412 | if (cmd->obey(cmd) < 0) |
1413 | break; |
bf5240cd |
1414 | } |
9954aaa3 |
1415 | } else { |
1416 | fp = fopen(batchfile, "r"); |
1417 | if (!fp) { |
bf5240cd |
1418 | printf("Fatal: unable to open %s\n", batchfile); |
1419 | return; |
9954aaa3 |
1420 | } |
1421 | while (1) { |
bf5240cd |
1422 | struct sftp_command *cmd; |
1423 | cmd = sftp_getcmd(fp, mode, modeflags); |
1424 | if (!cmd) |
1425 | break; |
df49ff19 |
1426 | ret = cmd->obey(cmd); |
1427 | if (ret < 0) |
bf5240cd |
1428 | break; |
df49ff19 |
1429 | if (ret == 0) { |
bf5240cd |
1430 | if (!(modeflags & 2)) |
9954aaa3 |
1431 | break; |
bf5240cd |
1432 | } |
9954aaa3 |
1433 | } |
bf5240cd |
1434 | fclose(fp); |
9954aaa3 |
1435 | |
4c7f0d61 |
1436 | } |
4a8fc3c4 |
1437 | } |
4c7f0d61 |
1438 | |
4a8fc3c4 |
1439 | /* ---------------------------------------------------------------------- |
1440 | * Dirty bits: integration with PuTTY. |
1441 | */ |
1442 | |
1443 | static int verbose = 0; |
1444 | |
7bedb13c |
1445 | /* |
4a8fc3c4 |
1446 | * Print an error message and perform a fatal exit. |
1447 | */ |
1448 | void fatalbox(char *fmt, ...) |
1449 | { |
57356d63 |
1450 | char *str, *str2; |
4a8fc3c4 |
1451 | va_list ap; |
1452 | va_start(ap, fmt); |
57356d63 |
1453 | str = dupvprintf(fmt, ap); |
1454 | str2 = dupcat("Fatal: ", str, "\n", NULL); |
1455 | sfree(str); |
4a8fc3c4 |
1456 | va_end(ap); |
57356d63 |
1457 | fputs(str2, stderr); |
1458 | sfree(str2); |
4a8fc3c4 |
1459 | |
93b581bd |
1460 | cleanup_exit(1); |
4a8fc3c4 |
1461 | } |
1709795f |
1462 | void modalfatalbox(char *fmt, ...) |
1463 | { |
57356d63 |
1464 | char *str, *str2; |
1709795f |
1465 | va_list ap; |
1466 | va_start(ap, fmt); |
57356d63 |
1467 | str = dupvprintf(fmt, ap); |
1468 | str2 = dupcat("Fatal: ", str, "\n", NULL); |
1469 | sfree(str); |
1709795f |
1470 | va_end(ap); |
57356d63 |
1471 | fputs(str2, stderr); |
1472 | sfree(str2); |
1709795f |
1473 | |
1474 | cleanup_exit(1); |
1475 | } |
a8327734 |
1476 | void connection_fatal(void *frontend, char *fmt, ...) |
4a8fc3c4 |
1477 | { |
57356d63 |
1478 | char *str, *str2; |
4a8fc3c4 |
1479 | va_list ap; |
1480 | va_start(ap, fmt); |
57356d63 |
1481 | str = dupvprintf(fmt, ap); |
1482 | str2 = dupcat("Fatal: ", str, "\n", NULL); |
1483 | sfree(str); |
4a8fc3c4 |
1484 | va_end(ap); |
57356d63 |
1485 | fputs(str2, stderr); |
1486 | sfree(str2); |
4a8fc3c4 |
1487 | |
93b581bd |
1488 | cleanup_exit(1); |
4a8fc3c4 |
1489 | } |
1490 | |
6b78788a |
1491 | void ldisc_send(void *handle, char *buf, int len, int interactive) |
32874aea |
1492 | { |
4a8fc3c4 |
1493 | /* |
1494 | * This is only here because of the calls to ldisc_send(NULL, |
1495 | * 0) in ssh.c. Nothing in PSFTP actually needs to use the |
1496 | * ldisc as an ldisc. So if we get called with any real data, I |
1497 | * want to know about it. |
4c7f0d61 |
1498 | */ |
4a8fc3c4 |
1499 | assert(len == 0); |
1500 | } |
1501 | |
1502 | /* |
1503 | * Be told what socket we're supposed to be using. |
1504 | */ |
1505 | static SOCKET sftp_ssh_socket; |
32874aea |
1506 | char *do_select(SOCKET skt, int startup) |
1507 | { |
4a8fc3c4 |
1508 | if (startup) |
1509 | sftp_ssh_socket = skt; |
1510 | else |
1511 | sftp_ssh_socket = INVALID_SOCKET; |
1512 | return NULL; |
4c7f0d61 |
1513 | } |
4a8fc3c4 |
1514 | extern int select_result(WPARAM, LPARAM); |
1515 | |
1516 | /* |
1517 | * Receive a block of data from the SSH link. Block until all data |
1518 | * is available. |
1519 | * |
1520 | * To do this, we repeatedly call the SSH protocol module, with our |
1521 | * own trap in from_backend() to catch the data that comes back. We |
1522 | * do this until we have enough data. |
1523 | */ |
1524 | |
32874aea |
1525 | static unsigned char *outptr; /* where to put the data */ |
1526 | static unsigned outlen; /* how much data required */ |
4a8fc3c4 |
1527 | static unsigned char *pending = NULL; /* any spare data */ |
32874aea |
1528 | static unsigned pendlen = 0, pendsize = 0; /* length and phys. size of buffer */ |
9fab77dc |
1529 | int from_backend(void *frontend, int is_stderr, const char *data, int datalen) |
32874aea |
1530 | { |
1531 | unsigned char *p = (unsigned char *) data; |
1532 | unsigned len = (unsigned) datalen; |
4a8fc3c4 |
1533 | |
2b0c045b |
1534 | assert(len > 0); |
1535 | |
4a8fc3c4 |
1536 | /* |
1537 | * stderr data is just spouted to local stderr and otherwise |
1538 | * ignored. |
1539 | */ |
1540 | if (is_stderr) { |
1541 | fwrite(data, 1, len, stderr); |
5471d09a |
1542 | return 0; |
4a8fc3c4 |
1543 | } |
1544 | |
1545 | /* |
1546 | * If this is before the real session begins, just return. |
1547 | */ |
1548 | if (!outptr) |
5471d09a |
1549 | return 0; |
4a8fc3c4 |
1550 | |
1551 | if (outlen > 0) { |
32874aea |
1552 | unsigned used = outlen; |
1553 | if (used > len) |
1554 | used = len; |
1555 | memcpy(outptr, p, used); |
1556 | outptr += used; |
1557 | outlen -= used; |
1558 | p += used; |
1559 | len -= used; |
4a8fc3c4 |
1560 | } |
1561 | |
1562 | if (len > 0) { |
32874aea |
1563 | if (pendsize < pendlen + len) { |
1564 | pendsize = pendlen + len + 4096; |
3d88e64d |
1565 | pending = sresize(pending, pendsize, unsigned char); |
32874aea |
1566 | } |
1567 | memcpy(pending + pendlen, p, len); |
1568 | pendlen += len; |
4a8fc3c4 |
1569 | } |
5471d09a |
1570 | |
1571 | return 0; |
4a8fc3c4 |
1572 | } |
32874aea |
1573 | int sftp_recvdata(char *buf, int len) |
1574 | { |
1575 | outptr = (unsigned char *) buf; |
4a8fc3c4 |
1576 | outlen = len; |
1577 | |
1578 | /* |
1579 | * See if the pending-input block contains some of what we |
1580 | * need. |
1581 | */ |
1582 | if (pendlen > 0) { |
32874aea |
1583 | unsigned pendused = pendlen; |
1584 | if (pendused > outlen) |
1585 | pendused = outlen; |
4a8fc3c4 |
1586 | memcpy(outptr, pending, pendused); |
32874aea |
1587 | memmove(pending, pending + pendused, pendlen - pendused); |
4a8fc3c4 |
1588 | outptr += pendused; |
1589 | outlen -= pendused; |
32874aea |
1590 | pendlen -= pendused; |
1591 | if (pendlen == 0) { |
1592 | pendsize = 0; |
1593 | sfree(pending); |
1594 | pending = NULL; |
1595 | } |
1596 | if (outlen == 0) |
1597 | return 1; |
4a8fc3c4 |
1598 | } |
1599 | |
1600 | while (outlen > 0) { |
32874aea |
1601 | fd_set readfds; |
4a8fc3c4 |
1602 | |
32874aea |
1603 | FD_ZERO(&readfds); |
1604 | FD_SET(sftp_ssh_socket, &readfds); |
1605 | if (select(1, &readfds, NULL, NULL, NULL) < 0) |
1606 | return 0; /* doom */ |
1607 | select_result((WPARAM) sftp_ssh_socket, (LPARAM) FD_READ); |
4a8fc3c4 |
1608 | } |
1609 | |
1610 | return 1; |
1611 | } |
32874aea |
1612 | int sftp_senddata(char *buf, int len) |
1613 | { |
51470298 |
1614 | back->send(backhandle, (unsigned char *) buf, len); |
4a8fc3c4 |
1615 | return 1; |
1616 | } |
1617 | |
1618 | /* |
1619 | * Loop through the ssh connection and authentication process. |
1620 | */ |
32874aea |
1621 | static void ssh_sftp_init(void) |
1622 | { |
4a8fc3c4 |
1623 | if (sftp_ssh_socket == INVALID_SOCKET) |
1624 | return; |
51470298 |
1625 | while (!back->sendok(backhandle)) { |
32874aea |
1626 | fd_set readfds; |
1627 | FD_ZERO(&readfds); |
1628 | FD_SET(sftp_ssh_socket, &readfds); |
1629 | if (select(1, &readfds, NULL, NULL, NULL) < 0) |
1630 | return; /* doom */ |
1631 | select_result((WPARAM) sftp_ssh_socket, (LPARAM) FD_READ); |
4a8fc3c4 |
1632 | } |
1633 | } |
1634 | |
4a8fc3c4 |
1635 | /* |
1636 | * Initialize the Win$ock driver. |
1637 | */ |
1638 | static void init_winsock(void) |
1639 | { |
1640 | WORD winsock_ver; |
1641 | WSADATA wsadata; |
1642 | |
1643 | winsock_ver = MAKEWORD(1, 1); |
1644 | if (WSAStartup(winsock_ver, &wsadata)) { |
1645 | fprintf(stderr, "Unable to initialise WinSock"); |
93b581bd |
1646 | cleanup_exit(1); |
4a8fc3c4 |
1647 | } |
32874aea |
1648 | if (LOBYTE(wsadata.wVersion) != 1 || HIBYTE(wsadata.wVersion) != 1) { |
4a8fc3c4 |
1649 | fprintf(stderr, "WinSock version is incompatible with 1.1"); |
93b581bd |
1650 | cleanup_exit(1); |
4a8fc3c4 |
1651 | } |
1652 | } |
1653 | |
1654 | /* |
1655 | * Short description of parameters. |
1656 | */ |
1657 | static void usage(void) |
1658 | { |
1659 | printf("PuTTY Secure File Transfer (SFTP) client\n"); |
1660 | printf("%s\n", ver); |
1661 | printf("Usage: psftp [options] user@host\n"); |
1662 | printf("Options:\n"); |
9954aaa3 |
1663 | printf(" -b file use specified batchfile\n"); |
1664 | printf(" -bc output batchfile commands\n"); |
1665 | printf(" -be don't stop batchfile processing if errors\n"); |
4a8fc3c4 |
1666 | printf(" -v show verbose messages\n"); |
e2a197cf |
1667 | printf(" -load sessname Load settings from saved session\n"); |
1668 | printf(" -l user connect with specified username\n"); |
4a8fc3c4 |
1669 | printf(" -P port connect to specified port\n"); |
1670 | printf(" -pw passw login with specified password\n"); |
e2a197cf |
1671 | printf(" -1 -2 force use of particular SSH protocol version\n"); |
1672 | printf(" -C enable compression\n"); |
1673 | printf(" -i key private key file for authentication\n"); |
1674 | printf(" -batch disable all interactive prompts\n"); |
93b581bd |
1675 | cleanup_exit(1); |
4a8fc3c4 |
1676 | } |
1677 | |
1678 | /* |
fa3db767 |
1679 | * Connect to a host. |
4a8fc3c4 |
1680 | */ |
fa3db767 |
1681 | static int psftp_connect(char *userhost, char *user, int portnumber) |
4a8fc3c4 |
1682 | { |
fa3db767 |
1683 | char *host, *realhost; |
4a8fc3c4 |
1684 | char *err; |
4a8fc3c4 |
1685 | |
1686 | /* Separate host and username */ |
1687 | host = userhost; |
1688 | host = strrchr(host, '@'); |
1689 | if (host == NULL) { |
1690 | host = userhost; |
1691 | } else { |
1692 | *host++ = '\0'; |
1693 | if (user) { |
32874aea |
1694 | printf("psftp: multiple usernames specified; using \"%s\"\n", |
1695 | user); |
4a8fc3c4 |
1696 | } else |
1697 | user = userhost; |
1698 | } |
1699 | |
1700 | /* Try to load settings for this host */ |
1701 | do_defaults(host, &cfg); |
1702 | if (cfg.host[0] == '\0') { |
1703 | /* No settings for this host; use defaults */ |
32874aea |
1704 | do_defaults(NULL, &cfg); |
1705 | strncpy(cfg.host, host, sizeof(cfg.host) - 1); |
1706 | cfg.host[sizeof(cfg.host) - 1] = '\0'; |
f133db8e |
1707 | } |
1708 | |
1709 | /* |
1710 | * Force use of SSH. (If they got the protocol wrong we assume the |
1711 | * port is useless too.) |
1712 | */ |
1713 | if (cfg.protocol != PROT_SSH) { |
1714 | cfg.protocol = PROT_SSH; |
1715 | cfg.port = 22; |
4a8fc3c4 |
1716 | } |
1717 | |
449925a6 |
1718 | /* |
c0a81592 |
1719 | * Enact command-line overrides. |
1720 | */ |
5555d393 |
1721 | cmdline_run_saved(&cfg); |
c0a81592 |
1722 | |
1723 | /* |
449925a6 |
1724 | * Trim leading whitespace off the hostname if it's there. |
1725 | */ |
1726 | { |
1727 | int space = strspn(cfg.host, " \t"); |
1728 | memmove(cfg.host, cfg.host+space, 1+strlen(cfg.host)-space); |
1729 | } |
1730 | |
1731 | /* See if host is of the form user@host */ |
1732 | if (cfg.host[0] != '\0') { |
1733 | char *atsign = strchr(cfg.host, '@'); |
1734 | /* Make sure we're not overflowing the user field */ |
1735 | if (atsign) { |
1736 | if (atsign - cfg.host < sizeof cfg.username) { |
1737 | strncpy(cfg.username, cfg.host, atsign - cfg.host); |
1738 | cfg.username[atsign - cfg.host] = '\0'; |
1739 | } |
1740 | memmove(cfg.host, atsign + 1, 1 + strlen(atsign + 1)); |
1741 | } |
1742 | } |
1743 | |
1744 | /* |
1745 | * Trim a colon suffix off the hostname if it's there. |
1746 | */ |
1747 | cfg.host[strcspn(cfg.host, ":")] = '\0'; |
1748 | |
cae0c023 |
1749 | /* |
1750 | * Remove any remaining whitespace from the hostname. |
1751 | */ |
1752 | { |
1753 | int p1 = 0, p2 = 0; |
1754 | while (cfg.host[p2] != '\0') { |
1755 | if (cfg.host[p2] != ' ' && cfg.host[p2] != '\t') { |
1756 | cfg.host[p1] = cfg.host[p2]; |
1757 | p1++; |
1758 | } |
1759 | p2++; |
1760 | } |
1761 | cfg.host[p1] = '\0'; |
1762 | } |
1763 | |
4a8fc3c4 |
1764 | /* Set username */ |
1765 | if (user != NULL && user[0] != '\0') { |
32874aea |
1766 | strncpy(cfg.username, user, sizeof(cfg.username) - 1); |
1767 | cfg.username[sizeof(cfg.username) - 1] = '\0'; |
4a8fc3c4 |
1768 | } |
1769 | if (!cfg.username[0]) { |
1770 | printf("login as: "); |
f55eceed |
1771 | fflush(stdout); |
4a8fc3c4 |
1772 | if (!fgets(cfg.username, sizeof(cfg.username), stdin)) { |
1773 | fprintf(stderr, "psftp: aborting\n"); |
93b581bd |
1774 | cleanup_exit(1); |
4a8fc3c4 |
1775 | } else { |
1776 | int len = strlen(cfg.username); |
32874aea |
1777 | if (cfg.username[len - 1] == '\n') |
1778 | cfg.username[len - 1] = '\0'; |
4a8fc3c4 |
1779 | } |
1780 | } |
1781 | |
4a8fc3c4 |
1782 | if (portnumber) |
1783 | cfg.port = portnumber; |
1784 | |
1785 | /* SFTP uses SSH2 by default always */ |
1786 | cfg.sshprot = 2; |
1787 | |
d27b4a18 |
1788 | /* |
1789 | * Disable scary things which shouldn't be enabled for simple |
1790 | * things like SCP and SFTP: agent forwarding, port forwarding, |
1791 | * X forwarding. |
1792 | */ |
1793 | cfg.x11_forward = 0; |
1794 | cfg.agentfwd = 0; |
1795 | cfg.portfwd[0] = cfg.portfwd[1] = '\0'; |
1796 | |
bebf22d0 |
1797 | /* Set up subsystem name. */ |
4a8fc3c4 |
1798 | strcpy(cfg.remote_cmd, "sftp"); |
1799 | cfg.ssh_subsys = TRUE; |
1800 | cfg.nopty = TRUE; |
1801 | |
bebf22d0 |
1802 | /* |
1803 | * Set up fallback option, for SSH1 servers or servers with the |
1804 | * sftp subsystem not enabled but the server binary installed |
1805 | * in the usual place. We only support fallback on Unix |
248c0c5a |
1806 | * systems, and we use a kludgy piece of shellery which should |
1807 | * try to find sftp-server in various places (the obvious |
1808 | * systemwide spots /usr/lib and /usr/local/lib, and then the |
1809 | * user's PATH) and finally give up. |
bebf22d0 |
1810 | * |
248c0c5a |
1811 | * test -x /usr/lib/sftp-server && exec /usr/lib/sftp-server |
1812 | * test -x /usr/local/lib/sftp-server && exec /usr/local/lib/sftp-server |
1813 | * exec sftp-server |
bebf22d0 |
1814 | * |
1815 | * the idea being that this will attempt to use either of the |
1816 | * obvious pathnames and then give up, and when it does give up |
1817 | * it will print the preferred pathname in the error messages. |
1818 | */ |
1819 | cfg.remote_cmd_ptr2 = |
248c0c5a |
1820 | "test -x /usr/lib/sftp-server && exec /usr/lib/sftp-server\n" |
1821 | "test -x /usr/local/lib/sftp-server && exec /usr/local/lib/sftp-server\n" |
1822 | "exec sftp-server"; |
bebf22d0 |
1823 | cfg.ssh_subsys2 = FALSE; |
1824 | |
4a8fc3c4 |
1825 | back = &ssh_backend; |
1826 | |
86916870 |
1827 | err = back->init(NULL, &backhandle, &cfg, cfg.host, cfg.port, &realhost,0); |
4a8fc3c4 |
1828 | if (err != NULL) { |
fa3db767 |
1829 | fprintf(stderr, "ssh_init: %s\n", err); |
4a8fc3c4 |
1830 | return 1; |
1831 | } |
c229ef97 |
1832 | logctx = log_init(NULL, &cfg); |
a8327734 |
1833 | back->provide_logctx(backhandle, logctx); |
d3fef4a5 |
1834 | console_provide_logctx(logctx); |
4a8fc3c4 |
1835 | ssh_sftp_init(); |
1836 | if (verbose && realhost != NULL) |
1837 | printf("Connected to %s\n", realhost); |
fa3db767 |
1838 | return 0; |
1839 | } |
1840 | |
c0a81592 |
1841 | void cmdline_error(char *p, ...) |
1842 | { |
1843 | va_list ap; |
86256dc6 |
1844 | fprintf(stderr, "psftp: "); |
c0a81592 |
1845 | va_start(ap, p); |
1846 | vfprintf(stderr, p, ap); |
1847 | va_end(ap); |
86256dc6 |
1848 | fprintf(stderr, "\n try typing \"psftp -h\" for help\n"); |
c0a81592 |
1849 | exit(1); |
1850 | } |
1851 | |
fa3db767 |
1852 | /* |
1853 | * Main program. Parse arguments etc. |
1854 | */ |
1855 | int main(int argc, char *argv[]) |
1856 | { |
1857 | int i; |
1858 | int portnumber = 0; |
1859 | char *userhost, *user; |
1860 | int mode = 0; |
1861 | int modeflags = 0; |
1862 | char *batchfile = NULL; |
86256dc6 |
1863 | int errors = 0; |
fa3db767 |
1864 | |
1865 | flags = FLAG_STDERR | FLAG_INTERACTIVE; |
c0a81592 |
1866 | cmdline_tooltype = TOOLTYPE_FILETRANSFER; |
ff2ae367 |
1867 | ssh_get_line = &console_get_line; |
fa3db767 |
1868 | init_winsock(); |
1869 | sk_init(); |
1870 | |
1871 | userhost = user = NULL; |
1872 | |
86256dc6 |
1873 | errors = 0; |
fa3db767 |
1874 | for (i = 1; i < argc; i++) { |
c0a81592 |
1875 | int ret; |
fa3db767 |
1876 | if (argv[i][0] != '-') { |
c0a81592 |
1877 | if (userhost) |
1878 | usage(); |
1879 | else |
1880 | userhost = dupstr(argv[i]); |
1881 | continue; |
1882 | } |
5555d393 |
1883 | ret = cmdline_process_param(argv[i], i+1<argc?argv[i+1]:NULL, 1, &cfg); |
c0a81592 |
1884 | if (ret == -2) { |
1885 | cmdline_error("option \"%s\" requires an argument", argv[i]); |
1886 | } else if (ret == 2) { |
1887 | i++; /* skip next argument */ |
1888 | } else if (ret == 1) { |
1889 | /* We have our own verbosity in addition to `flags'. */ |
1890 | if (flags & FLAG_VERBOSE) |
1891 | verbose = 1; |
fa3db767 |
1892 | } else if (strcmp(argv[i], "-h") == 0 || |
1893 | strcmp(argv[i], "-?") == 0) { |
1894 | usage(); |
c0a81592 |
1895 | } else if (strcmp(argv[i], "-batch") == 0) { |
1896 | console_batch_mode = 1; |
fa3db767 |
1897 | } else if (strcmp(argv[i], "-b") == 0 && i + 1 < argc) { |
1898 | mode = 1; |
1899 | batchfile = argv[++i]; |
d13c2ee9 |
1900 | } else if (strcmp(argv[i], "-bc") == 0) { |
fa3db767 |
1901 | modeflags = modeflags | 1; |
d13c2ee9 |
1902 | } else if (strcmp(argv[i], "-be") == 0) { |
fa3db767 |
1903 | modeflags = modeflags | 2; |
1904 | } else if (strcmp(argv[i], "--") == 0) { |
1905 | i++; |
1906 | break; |
1907 | } else { |
86256dc6 |
1908 | cmdline_error("unknown option \"%s\"", argv[i]); |
fa3db767 |
1909 | } |
1910 | } |
1911 | argc -= i; |
1912 | argv += i; |
1913 | back = NULL; |
1914 | |
1915 | /* |
1916 | * If a user@host string has already been provided, connect to |
1917 | * it now. |
1918 | */ |
1919 | if (userhost) { |
1920 | if (psftp_connect(userhost, user, portnumber)) |
1921 | return 1; |
774204f5 |
1922 | if (do_sftp_init()) |
1923 | return 1; |
fa3db767 |
1924 | } else { |
1925 | printf("psftp: no hostname specified; use \"open host.name\"" |
1926 | " to connect\n"); |
1927 | } |
4c7f0d61 |
1928 | |
9954aaa3 |
1929 | do_sftp(mode, modeflags, batchfile); |
4a8fc3c4 |
1930 | |
51470298 |
1931 | if (back != NULL && back->socket(backhandle) != NULL) { |
4a8fc3c4 |
1932 | char ch; |
51470298 |
1933 | back->special(backhandle, TS_EOF); |
4a8fc3c4 |
1934 | sftp_recvdata(&ch, 1); |
1935 | } |
1936 | WSACleanup(); |
1937 | random_save_seed(); |
1938 | |
4c7f0d61 |
1939 | return 0; |
1940 | } |