4c7f0d61 |
1 | /* |
f4ff9455 |
2 | * psftp.c: (platform-independent) front end for PSFTP. |
4c7f0d61 |
3 | */ |
4 | |
5 | #include <stdio.h> |
6 | #include <stdlib.h> |
f9e162aa |
7 | #include <stdarg.h> |
4c7f0d61 |
8 | #include <assert.h> |
d92624dc |
9 | #include <limits.h> |
4c7f0d61 |
10 | |
4a8fc3c4 |
11 | #define PUTTY_DO_GLOBALS |
12 | #include "putty.h" |
d6cc41e6 |
13 | #include "psftp.h" |
4a8fc3c4 |
14 | #include "storage.h" |
15 | #include "ssh.h" |
4c7f0d61 |
16 | #include "sftp.h" |
17 | #include "int64.h" |
18 | |
5471d09a |
19 | /* |
20 | * Since SFTP is a request-response oriented protocol, it requires |
21 | * no buffer management: when we send data, we stop and wait for an |
22 | * acknowledgement _anyway_, and so we can't possibly overfill our |
23 | * send buffer. |
24 | */ |
25 | |
fa3db767 |
26 | static int psftp_connect(char *userhost, char *user, int portnumber); |
07534184 |
27 | static int do_sftp_init(void); |
679539d7 |
28 | void do_sftp_cleanup(); |
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; |
1bc24185 |
51 | struct sftp_packet *pktin; |
52 | struct sftp_request *req, *rreq; |
4a8fc3c4 |
53 | |
f9e162aa |
54 | if (name[0] == '/') { |
55 | fullname = dupstr(name); |
56 | } else { |
4a8fc3c4 |
57 | char *slash; |
32874aea |
58 | if (pwd[strlen(pwd) - 1] == '/') |
4a8fc3c4 |
59 | slash = ""; |
60 | else |
61 | slash = "/"; |
62 | fullname = dupcat(pwd, slash, name, NULL); |
f9e162aa |
63 | } |
4a8fc3c4 |
64 | |
1bc24185 |
65 | sftp_register(req = fxp_realpath_send(fullname)); |
66 | rreq = sftp_find_request(pktin = sftp_recv()); |
67 | assert(rreq == req); |
7b7de4f4 |
68 | canonname = fxp_realpath_recv(pktin, rreq); |
4a8fc3c4 |
69 | |
f9e162aa |
70 | if (canonname) { |
71 | sfree(fullname); |
72 | return canonname; |
50d7e054 |
73 | } else { |
32874aea |
74 | /* |
75 | * Attempt number 2. Some FXP_REALPATH implementations |
76 | * (glibc-based ones, in particular) require the _whole_ |
77 | * path to point to something that exists, whereas others |
78 | * (BSD-based) only require all but the last component to |
79 | * exist. So if the first call failed, we should strip off |
80 | * everything from the last slash onwards and try again, |
81 | * then put the final component back on. |
82 | * |
83 | * Special cases: |
84 | * |
85 | * - if the last component is "/." or "/..", then we don't |
86 | * bother trying this because there's no way it can work. |
87 | * |
88 | * - if the thing actually ends with a "/", we remove it |
89 | * before we start. Except if the string is "/" itself |
90 | * (although I can't see why we'd have got here if so, |
91 | * because surely "/" would have worked the first |
92 | * time?), in which case we don't bother. |
93 | * |
94 | * - if there's no slash in the string at all, give up in |
95 | * confusion (we expect at least one because of the way |
96 | * we constructed the string). |
97 | */ |
98 | |
99 | int i; |
100 | char *returnname; |
101 | |
102 | i = strlen(fullname); |
103 | if (i > 2 && fullname[i - 1] == '/') |
104 | fullname[--i] = '\0'; /* strip trailing / unless at pos 0 */ |
105 | while (i > 0 && fullname[--i] != '/'); |
106 | |
107 | /* |
108 | * Give up on special cases. |
109 | */ |
110 | if (fullname[i] != '/' || /* no slash at all */ |
111 | !strcmp(fullname + i, "/.") || /* ends in /. */ |
112 | !strcmp(fullname + i, "/..") || /* ends in /.. */ |
113 | !strcmp(fullname, "/")) { |
114 | return fullname; |
115 | } |
116 | |
117 | /* |
118 | * Now i points at the slash. Deal with the final special |
119 | * case i==0 (ie the whole path was "/nonexistentfile"). |
120 | */ |
121 | fullname[i] = '\0'; /* separate the string */ |
122 | if (i == 0) { |
1bc24185 |
123 | sftp_register(req = fxp_realpath_send("/")); |
32874aea |
124 | } else { |
1bc24185 |
125 | sftp_register(req = fxp_realpath_send(fullname)); |
32874aea |
126 | } |
1bc24185 |
127 | rreq = sftp_find_request(pktin = sftp_recv()); |
128 | assert(rreq == req); |
7b7de4f4 |
129 | canonname = fxp_realpath_recv(pktin, rreq); |
32874aea |
130 | |
131 | if (!canonname) |
132 | return fullname; /* even that failed; give up */ |
133 | |
134 | /* |
135 | * We have a canonical name for all but the last path |
136 | * component. Concatenate the last component and return. |
137 | */ |
138 | returnname = dupcat(canonname, |
139 | canonname[strlen(canonname) - 1] == |
140 | '/' ? "" : "/", fullname + i + 1, NULL); |
141 | sfree(fullname); |
142 | sfree(canonname); |
143 | return returnname; |
50d7e054 |
144 | } |
4c7f0d61 |
145 | } |
146 | |
dcf8495c |
147 | /* |
148 | * Return a pointer to the portion of str that comes after the last |
149 | * slash (or backslash or colon, if `local' is TRUE). |
150 | */ |
151 | static char *stripslashes(char *str, int local) |
152 | { |
153 | char *p; |
154 | |
155 | if (local) { |
156 | p = strchr(str, ':'); |
157 | if (p) str = p+1; |
158 | } |
159 | |
160 | p = strrchr(str, '/'); |
161 | if (p) str = p+1; |
162 | |
163 | if (local) { |
164 | p = strrchr(str, '\\'); |
165 | if (p) str = p+1; |
166 | } |
167 | |
168 | return str; |
169 | } |
170 | |
4c7f0d61 |
171 | /* |
93e86a8b |
172 | * qsort comparison routine for fxp_name structures. Sorts by real |
173 | * file name. |
4c7f0d61 |
174 | */ |
93e86a8b |
175 | static int sftp_name_compare(const void *av, const void *bv) |
32874aea |
176 | { |
7d2c1789 |
177 | const struct fxp_name *const *a = (const struct fxp_name *const *) av; |
178 | const struct fxp_name *const *b = (const struct fxp_name *const *) bv; |
179 | return strcmp((*a)->filename, (*b)->filename); |
4c7f0d61 |
180 | } |
4c7f0d61 |
181 | |
182 | /* |
93e86a8b |
183 | * Likewise, but for a bare char *. |
4f2b387f |
184 | */ |
93e86a8b |
185 | static int bare_name_compare(const void *av, const void *bv) |
4f2b387f |
186 | { |
93e86a8b |
187 | const char **a = (const char **) av; |
188 | const char **b = (const char **) bv; |
189 | return strcmp(*a, *b); |
4f2b387f |
190 | } |
191 | |
93e86a8b |
192 | /* ---------------------------------------------------------------------- |
193 | * The meat of the `get' and `put' commands. |
4c7f0d61 |
194 | */ |
5079ee6d |
195 | int sftp_get_file(char *fname, char *outfname, int recurse, int restart) |
32874aea |
196 | { |
4c7f0d61 |
197 | struct fxp_handle *fh; |
1bc24185 |
198 | struct sftp_packet *pktin; |
199 | struct sftp_request *req, *rreq; |
c606c42d |
200 | struct fxp_xfer *xfer; |
4c7f0d61 |
201 | uint64 offset; |
202 | FILE *fp; |
479fe1ba |
203 | int ret, shown_err = FALSE; |
4c7f0d61 |
204 | |
93e86a8b |
205 | /* |
206 | * In recursive mode, see if we're dealing with a directory. |
207 | * (If we're not in recursive mode, we need not even check: the |
208 | * subsequent FXP_OPEN will return a usable error message.) |
209 | */ |
5079ee6d |
210 | if (recurse) { |
93e86a8b |
211 | struct fxp_attrs attrs; |
212 | int result; |
fa3db767 |
213 | |
5079ee6d |
214 | sftp_register(req = fxp_stat_send(fname)); |
215 | rreq = sftp_find_request(pktin = sftp_recv()); |
216 | assert(rreq == req); |
217 | result = fxp_stat_recv(pktin, rreq, &attrs); |
9c77ddf6 |
218 | |
5079ee6d |
219 | if (result && |
220 | (attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) && |
221 | (attrs.permissions & 0040000)) { |
93e86a8b |
222 | |
223 | struct fxp_handle *dirhandle; |
224 | int nnames, namesize; |
225 | struct fxp_name **ournames; |
226 | struct fxp_names *names; |
227 | int i; |
228 | |
229 | /* |
230 | * First, attempt to create the destination directory, |
5079ee6d |
231 | * unless it already exists. |
93e86a8b |
232 | */ |
5079ee6d |
233 | if (file_type(outfname) != FILE_TYPE_DIRECTORY && |
93e86a8b |
234 | !create_directory(outfname)) { |
235 | printf("%s: Cannot create directory\n", outfname); |
236 | return 0; |
237 | } |
4c7f0d61 |
238 | |
93e86a8b |
239 | /* |
240 | * Now get the list of filenames in the remote |
241 | * directory. |
242 | */ |
243 | sftp_register(req = fxp_opendir_send(fname)); |
244 | rreq = sftp_find_request(pktin = sftp_recv()); |
245 | assert(rreq == req); |
246 | dirhandle = fxp_opendir_recv(pktin, rreq); |
247 | |
248 | if (!dirhandle) { |
249 | printf("%s: unable to open directory: %s\n", |
250 | fname, fxp_error()); |
251 | return 0; |
252 | } |
253 | nnames = namesize = 0; |
254 | ournames = NULL; |
255 | while (1) { |
256 | int i; |
257 | |
258 | sftp_register(req = fxp_readdir_send(dirhandle)); |
259 | rreq = sftp_find_request(pktin = sftp_recv()); |
260 | assert(rreq == req); |
261 | names = fxp_readdir_recv(pktin, rreq); |
262 | |
263 | if (names == NULL) { |
264 | if (fxp_error_type() == SSH_FX_EOF) |
265 | break; |
266 | printf("%s: reading directory: %s\n", fname, fxp_error()); |
267 | sfree(ournames); |
268 | return 0; |
269 | } |
270 | if (names->nnames == 0) { |
271 | fxp_free_names(names); |
272 | break; |
273 | } |
274 | if (nnames + names->nnames >= namesize) { |
275 | namesize += names->nnames + 128; |
276 | ournames = sresize(ournames, namesize, struct fxp_name *); |
277 | } |
278 | for (i = 0; i < names->nnames; i++) |
e9d14678 |
279 | if (strcmp(names->names[i].filename, ".") && |
5079ee6d |
280 | strcmp(names->names[i].filename, "..")) { |
e9d14678 |
281 | if (!vet_filename(names->names[i].filename)) { |
282 | printf("ignoring potentially dangerous server-" |
283 | "supplied filename '%s'\n", |
284 | names->names[i].filename); |
285 | } else { |
286 | ournames[nnames++] = |
287 | fxp_dup_name(&names->names[i]); |
288 | } |
289 | } |
93e86a8b |
290 | fxp_free_names(names); |
291 | } |
292 | sftp_register(req = fxp_close_send(dirhandle)); |
293 | rreq = sftp_find_request(pktin = sftp_recv()); |
294 | assert(rreq == req); |
295 | fxp_close_recv(pktin, rreq); |
296 | |
297 | /* |
298 | * Sort the names into a clear order. This ought to |
299 | * make things more predictable when we're doing a |
300 | * reget of the same directory, just in case two |
301 | * readdirs on the same remote directory return a |
302 | * different order. |
303 | */ |
304 | qsort(ournames, nnames, sizeof(*ournames), sftp_name_compare); |
305 | |
306 | /* |
307 | * If we're in restart mode, find the last filename on |
308 | * this list that already exists. We may have to do a |
309 | * reget on _that_ file, but shouldn't have to do |
310 | * anything on the previous files. |
311 | * |
312 | * If none of them exists, of course, we start at 0. |
313 | */ |
314 | i = 0; |
315 | while (i < nnames) { |
316 | char *nextoutfname; |
317 | int ret; |
9c77ddf6 |
318 | if (outfname) |
319 | nextoutfname = dir_file_cat(outfname, |
320 | ournames[i]->filename); |
321 | else |
322 | nextoutfname = dupstr(ournames[i]->filename); |
93e86a8b |
323 | ret = (file_type(nextoutfname) == FILE_TYPE_NONEXISTENT); |
324 | sfree(nextoutfname); |
325 | if (ret) |
326 | break; |
327 | i++; |
328 | } |
329 | if (i > 0) |
330 | i--; |
331 | |
332 | /* |
333 | * Now we're ready to recurse. Starting at ournames[i] |
334 | * and continuing on to the end of the list, we |
335 | * construct a new source and target file name, and |
336 | * call sftp_get_file again. |
337 | */ |
338 | for (; i < nnames; i++) { |
339 | char *nextfname, *nextoutfname; |
340 | int ret; |
341 | |
342 | nextfname = dupcat(fname, "/", ournames[i]->filename, NULL); |
9c77ddf6 |
343 | if (outfname) |
344 | nextoutfname = dir_file_cat(outfname, |
345 | ournames[i]->filename); |
346 | else |
347 | nextoutfname = dupstr(ournames[i]->filename); |
5079ee6d |
348 | ret = sftp_get_file(nextfname, nextoutfname, recurse, restart); |
93e86a8b |
349 | restart = FALSE; /* after first partial file, do full */ |
350 | sfree(nextoutfname); |
351 | sfree(nextfname); |
352 | if (!ret) { |
353 | for (i = 0; i < nnames; i++) { |
354 | fxp_free_name(ournames[i]); |
355 | } |
356 | sfree(ournames); |
357 | return 0; |
358 | } |
359 | } |
360 | |
361 | /* |
362 | * Done this recursion level. Free everything. |
363 | */ |
364 | for (i = 0; i < nnames; i++) { |
365 | fxp_free_name(ournames[i]); |
366 | } |
367 | sfree(ournames); |
368 | |
369 | return 1; |
370 | } |
4c7f0d61 |
371 | } |
4c7f0d61 |
372 | |
1bc24185 |
373 | sftp_register(req = fxp_open_send(fname, SSH_FXF_READ)); |
374 | rreq = sftp_find_request(pktin = sftp_recv()); |
375 | assert(rreq == req); |
7b7de4f4 |
376 | fh = fxp_open_recv(pktin, rreq); |
1bc24185 |
377 | |
4c7f0d61 |
378 | if (!fh) { |
379 | printf("%s: %s\n", fname, fxp_error()); |
4c7f0d61 |
380 | return 0; |
381 | } |
d92624dc |
382 | |
383 | if (restart) { |
384 | fp = fopen(outfname, "rb+"); |
385 | } else { |
386 | fp = fopen(outfname, "wb"); |
387 | } |
388 | |
4c7f0d61 |
389 | if (!fp) { |
390 | printf("local: unable to open %s\n", outfname); |
1bc24185 |
391 | |
392 | sftp_register(req = fxp_close_send(fh)); |
393 | rreq = sftp_find_request(pktin = sftp_recv()); |
394 | assert(rreq == req); |
7b7de4f4 |
395 | fxp_close_recv(pktin, rreq); |
1bc24185 |
396 | |
4c7f0d61 |
397 | return 0; |
398 | } |
399 | |
d92624dc |
400 | if (restart) { |
401 | long posn; |
402 | fseek(fp, 0L, SEEK_END); |
403 | posn = ftell(fp); |
404 | printf("reget: restarting at file position %ld\n", posn); |
405 | offset = uint64_make(0, posn); |
406 | } else { |
407 | offset = uint64_make(0, 0); |
408 | } |
4c7f0d61 |
409 | |
d92624dc |
410 | printf("remote:%s => local:%s\n", fname, outfname); |
4c7f0d61 |
411 | |
412 | /* |
413 | * FIXME: we can use FXP_FSTAT here to get the file size, and |
414 | * thus put up a progress bar. |
415 | */ |
df49ff19 |
416 | ret = 1; |
c606c42d |
417 | xfer = xfer_download_init(fh, offset); |
df0870fc |
418 | while (!xfer_done(xfer)) { |
c606c42d |
419 | void *vbuf; |
420 | int ret, len; |
4c7f0d61 |
421 | int wpos, wlen; |
422 | |
c606c42d |
423 | xfer_download_queue(xfer); |
424 | pktin = sftp_recv(); |
425 | ret = xfer_download_gotpkt(xfer, pktin); |
426 | |
427 | if (ret < 0) { |
479fe1ba |
428 | if (!shown_err) { |
429 | printf("error while reading: %s\n", fxp_error()); |
430 | shown_err = TRUE; |
431 | } |
c606c42d |
432 | ret = 0; |
4c7f0d61 |
433 | } |
32874aea |
434 | |
c606c42d |
435 | while (xfer_download_data(xfer, &vbuf, &len)) { |
436 | unsigned char *buf = (unsigned char *)vbuf; |
437 | |
438 | wpos = 0; |
439 | while (wpos < len) { |
440 | wlen = fwrite(buf + wpos, 1, len - wpos, fp); |
441 | if (wlen <= 0) { |
442 | printf("error while writing local file\n"); |
443 | ret = 0; |
444 | xfer_set_error(xfer); |
445 | } |
446 | wpos += wlen; |
447 | } |
448 | if (wpos < len) { /* we had an error */ |
df49ff19 |
449 | ret = 0; |
c606c42d |
450 | xfer_set_error(xfer); |
4c7f0d61 |
451 | } |
9ff4e23d |
452 | |
453 | sfree(vbuf); |
df49ff19 |
454 | } |
4c7f0d61 |
455 | } |
456 | |
c606c42d |
457 | xfer_cleanup(xfer); |
458 | |
4c7f0d61 |
459 | fclose(fp); |
1bc24185 |
460 | |
461 | sftp_register(req = fxp_close_send(fh)); |
462 | rreq = sftp_find_request(pktin = sftp_recv()); |
463 | assert(rreq == req); |
7b7de4f4 |
464 | fxp_close_recv(pktin, rreq); |
1bc24185 |
465 | |
df49ff19 |
466 | return ret; |
4c7f0d61 |
467 | } |
468 | |
5079ee6d |
469 | int sftp_put_file(char *fname, char *outfname, int recurse, int restart) |
32874aea |
470 | { |
4c7f0d61 |
471 | struct fxp_handle *fh; |
df0870fc |
472 | struct fxp_xfer *xfer; |
1bc24185 |
473 | struct sftp_packet *pktin; |
474 | struct sftp_request *req, *rreq; |
4c7f0d61 |
475 | uint64 offset; |
476 | FILE *fp; |
df0870fc |
477 | int ret, err, eof; |
4c7f0d61 |
478 | |
93e86a8b |
479 | /* |
480 | * In recursive mode, see if we're dealing with a directory. |
481 | * (If we're not in recursive mode, we need not even check: the |
482 | * subsequent fopen will return an error message.) |
483 | */ |
5079ee6d |
484 | if (recurse && file_type(fname) == FILE_TYPE_DIRECTORY) { |
93e86a8b |
485 | struct fxp_attrs attrs; |
486 | int result; |
487 | int nnames, namesize; |
488 | char *name, **ournames; |
489 | DirHandle *dh; |
490 | int i; |
4c7f0d61 |
491 | |
5079ee6d |
492 | /* |
493 | * First, attempt to create the destination directory, |
494 | * unless it already exists. |
495 | */ |
496 | sftp_register(req = fxp_stat_send(outfname)); |
497 | rreq = sftp_find_request(pktin = sftp_recv()); |
498 | assert(rreq == req); |
499 | result = fxp_stat_recv(pktin, rreq, &attrs); |
500 | if (!result || |
501 | !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) || |
502 | !(attrs.permissions & 0040000)) { |
503 | sftp_register(req = fxp_mkdir_send(outfname)); |
93e86a8b |
504 | rreq = sftp_find_request(pktin = sftp_recv()); |
505 | assert(rreq == req); |
5079ee6d |
506 | result = fxp_mkdir_recv(pktin, rreq); |
93e86a8b |
507 | |
5079ee6d |
508 | if (!result) { |
509 | printf("%s: create directory: %s\n", |
510 | outfname, fxp_error()); |
511 | return 0; |
93e86a8b |
512 | } |
513 | } |
514 | |
515 | /* |
516 | * Now get the list of filenames in the local directory. |
517 | */ |
93e86a8b |
518 | nnames = namesize = 0; |
519 | ournames = NULL; |
9c77ddf6 |
520 | |
5079ee6d |
521 | dh = open_directory(fname); |
522 | if (!dh) { |
523 | printf("%s: unable to open directory\n", fname); |
524 | return 0; |
9c77ddf6 |
525 | } |
5079ee6d |
526 | while ((name = read_filename(dh)) != NULL) { |
527 | if (nnames >= namesize) { |
528 | namesize += 128; |
529 | ournames = sresize(ournames, namesize, char *); |
530 | } |
531 | ournames[nnames++] = name; |
93e86a8b |
532 | } |
5079ee6d |
533 | close_directory(dh); |
93e86a8b |
534 | |
535 | /* |
536 | * Sort the names into a clear order. This ought to make |
537 | * things more predictable when we're doing a reput of the |
538 | * same directory, just in case two readdirs on the same |
539 | * local directory return a different order. |
540 | */ |
541 | qsort(ournames, nnames, sizeof(*ournames), bare_name_compare); |
542 | |
543 | /* |
544 | * If we're in restart mode, find the last filename on this |
545 | * list that already exists. We may have to do a reput on |
546 | * _that_ file, but shouldn't have to do anything on the |
547 | * previous files. |
548 | * |
549 | * If none of them exists, of course, we start at 0. |
550 | */ |
551 | i = 0; |
552 | while (i < nnames) { |
553 | char *nextoutfname; |
554 | nextoutfname = dupcat(outfname, "/", ournames[i], NULL); |
555 | sftp_register(req = fxp_stat_send(nextoutfname)); |
556 | rreq = sftp_find_request(pktin = sftp_recv()); |
557 | assert(rreq == req); |
558 | result = fxp_stat_recv(pktin, rreq, &attrs); |
559 | sfree(nextoutfname); |
560 | if (!result) |
561 | break; |
562 | i++; |
563 | } |
564 | if (i > 0) |
565 | i--; |
566 | |
567 | /* |
568 | * Now we're ready to recurse. Starting at ournames[i] |
569 | * and continuing on to the end of the list, we |
570 | * construct a new source and target file name, and |
571 | * call sftp_put_file again. |
572 | */ |
573 | for (; i < nnames; i++) { |
574 | char *nextfname, *nextoutfname; |
575 | int ret; |
576 | |
9c77ddf6 |
577 | if (fname) |
578 | nextfname = dir_file_cat(fname, ournames[i]); |
579 | else |
580 | nextfname = dupstr(ournames[i]); |
93e86a8b |
581 | nextoutfname = dupcat(outfname, "/", ournames[i], NULL); |
5079ee6d |
582 | ret = sftp_put_file(nextfname, nextoutfname, recurse, restart); |
93e86a8b |
583 | restart = FALSE; /* after first partial file, do full */ |
584 | sfree(nextoutfname); |
585 | sfree(nextfname); |
586 | if (!ret) { |
587 | for (i = 0; i < nnames; i++) { |
588 | sfree(ournames[i]); |
589 | } |
590 | sfree(ournames); |
591 | return 0; |
592 | } |
593 | } |
594 | |
595 | /* |
596 | * Done this recursion level. Free everything. |
597 | */ |
598 | for (i = 0; i < nnames; i++) { |
599 | sfree(ournames[i]); |
600 | } |
601 | sfree(ournames); |
602 | |
603 | return 1; |
4c7f0d61 |
604 | } |
605 | |
606 | fp = fopen(fname, "rb"); |
607 | if (!fp) { |
608 | printf("local: unable to open %s\n", fname); |
4c7f0d61 |
609 | return 0; |
610 | } |
d92624dc |
611 | if (restart) { |
1bc24185 |
612 | sftp_register(req = fxp_open_send(outfname, SSH_FXF_WRITE)); |
d92624dc |
613 | } else { |
1bc24185 |
614 | sftp_register(req = fxp_open_send(outfname, SSH_FXF_WRITE | |
615 | SSH_FXF_CREAT | SSH_FXF_TRUNC)); |
d92624dc |
616 | } |
1bc24185 |
617 | rreq = sftp_find_request(pktin = sftp_recv()); |
618 | assert(rreq == req); |
7b7de4f4 |
619 | fh = fxp_open_recv(pktin, rreq); |
1bc24185 |
620 | |
4c7f0d61 |
621 | if (!fh) { |
622 | printf("%s: %s\n", outfname, fxp_error()); |
4c7f0d61 |
623 | return 0; |
624 | } |
625 | |
d92624dc |
626 | if (restart) { |
627 | char decbuf[30]; |
628 | struct fxp_attrs attrs; |
1bc24185 |
629 | int ret; |
630 | |
631 | sftp_register(req = fxp_fstat_send(fh)); |
632 | rreq = sftp_find_request(pktin = sftp_recv()); |
633 | assert(rreq == req); |
7b7de4f4 |
634 | ret = fxp_fstat_recv(pktin, rreq, &attrs); |
1bc24185 |
635 | |
636 | if (!ret) { |
d92624dc |
637 | printf("read size of %s: %s\n", outfname, fxp_error()); |
d92624dc |
638 | return 0; |
639 | } |
640 | if (!(attrs.flags & SSH_FILEXFER_ATTR_SIZE)) { |
641 | printf("read size of %s: size was not given\n", outfname); |
d92624dc |
642 | return 0; |
643 | } |
644 | offset = attrs.size; |
645 | uint64_decimal(offset, decbuf); |
646 | printf("reput: restarting at file position %s\n", decbuf); |
647 | if (uint64_compare(offset, uint64_make(0, LONG_MAX)) > 0) { |
648 | printf("reput: remote file is larger than we can deal with\n"); |
d92624dc |
649 | return 0; |
650 | } |
651 | if (fseek(fp, offset.lo, SEEK_SET) != 0) |
652 | fseek(fp, 0, SEEK_END); /* *shrug* */ |
653 | } else { |
654 | offset = uint64_make(0, 0); |
655 | } |
4c7f0d61 |
656 | |
d92624dc |
657 | printf("local:%s => remote:%s\n", fname, outfname); |
4c7f0d61 |
658 | |
659 | /* |
660 | * FIXME: we can use FXP_FSTAT here to get the file size, and |
661 | * thus put up a progress bar. |
662 | */ |
df49ff19 |
663 | ret = 1; |
df0870fc |
664 | xfer = xfer_upload_init(fh, offset); |
665 | err = eof = 0; |
666 | while ((!err && !eof) || !xfer_done(xfer)) { |
4c7f0d61 |
667 | char buffer[4096]; |
1bc24185 |
668 | int len, ret; |
4c7f0d61 |
669 | |
df0870fc |
670 | while (xfer_upload_ready(xfer) && !err && !eof) { |
671 | len = fread(buffer, 1, sizeof(buffer), fp); |
672 | if (len == -1) { |
673 | printf("error while reading local file\n"); |
674 | err = 1; |
675 | } else if (len == 0) { |
676 | eof = 1; |
677 | } else { |
678 | xfer_upload_data(xfer, buffer, len); |
679 | } |
4c7f0d61 |
680 | } |
1bc24185 |
681 | |
2dbd915a |
682 | if (!xfer_done(xfer)) { |
683 | pktin = sftp_recv(); |
684 | ret = xfer_upload_gotpkt(xfer, pktin); |
685 | if (!ret) { |
686 | printf("error while writing: %s\n", fxp_error()); |
687 | err = 1; |
688 | } |
4c7f0d61 |
689 | } |
4c7f0d61 |
690 | } |
691 | |
df0870fc |
692 | xfer_cleanup(xfer); |
693 | |
1bc24185 |
694 | sftp_register(req = fxp_close_send(fh)); |
695 | rreq = sftp_find_request(pktin = sftp_recv()); |
696 | assert(rreq == req); |
7b7de4f4 |
697 | fxp_close_recv(pktin, rreq); |
1bc24185 |
698 | |
4c7f0d61 |
699 | fclose(fp); |
93e86a8b |
700 | |
701 | return ret; |
702 | } |
703 | |
704 | /* ---------------------------------------------------------------------- |
5079ee6d |
705 | * A remote wildcard matcher, providing a similar interface to the |
706 | * local one in psftp.h. |
707 | */ |
708 | |
709 | typedef struct SftpWildcardMatcher { |
710 | struct fxp_handle *dirh; |
711 | struct fxp_names *names; |
712 | int namepos; |
713 | char *wildcard, *prefix; |
714 | } SftpWildcardMatcher; |
715 | |
716 | SftpWildcardMatcher *sftp_begin_wildcard_matching(char *name) |
717 | { |
718 | struct sftp_packet *pktin; |
719 | struct sftp_request *req, *rreq; |
720 | char *wildcard; |
721 | char *unwcdir, *tmpdir, *cdir; |
722 | int len, check; |
723 | SftpWildcardMatcher *swcm; |
724 | struct fxp_handle *dirh; |
725 | |
726 | /* |
727 | * We don't handle multi-level wildcards; so we expect to find |
728 | * a fully specified directory part, followed by a wildcard |
729 | * after that. |
730 | */ |
731 | wildcard = stripslashes(name, 0); |
732 | |
733 | unwcdir = dupstr(name); |
734 | len = wildcard - name; |
735 | unwcdir[len] = '\0'; |
736 | if (len > 0 && unwcdir[len-1] == '/') |
737 | unwcdir[len-1] = '\0'; |
738 | tmpdir = snewn(1 + len, char); |
739 | check = wc_unescape(tmpdir, unwcdir); |
740 | sfree(tmpdir); |
741 | |
742 | if (!check) { |
743 | printf("Multiple-level wildcards are not supported\n"); |
744 | sfree(unwcdir); |
745 | return NULL; |
746 | } |
747 | |
748 | cdir = canonify(unwcdir); |
749 | |
750 | sftp_register(req = fxp_opendir_send(cdir)); |
751 | rreq = sftp_find_request(pktin = sftp_recv()); |
752 | assert(rreq == req); |
753 | dirh = fxp_opendir_recv(pktin, rreq); |
754 | |
755 | if (dirh) { |
756 | swcm = snew(SftpWildcardMatcher); |
757 | swcm->dirh = dirh; |
758 | swcm->names = NULL; |
759 | swcm->wildcard = dupstr(wildcard); |
760 | swcm->prefix = unwcdir; |
761 | } else { |
762 | printf("Unable to open %s: %s\n", cdir, fxp_error()); |
763 | swcm = NULL; |
764 | sfree(unwcdir); |
765 | } |
766 | |
767 | sfree(cdir); |
768 | |
769 | return swcm; |
770 | } |
771 | |
772 | char *sftp_wildcard_get_filename(SftpWildcardMatcher *swcm) |
773 | { |
774 | struct fxp_name *name; |
775 | struct sftp_packet *pktin; |
776 | struct sftp_request *req, *rreq; |
777 | |
778 | while (1) { |
779 | if (swcm->names && swcm->namepos >= swcm->names->nnames) { |
780 | fxp_free_names(swcm->names); |
781 | swcm->names = NULL; |
782 | } |
783 | |
784 | if (!swcm->names) { |
785 | sftp_register(req = fxp_readdir_send(swcm->dirh)); |
786 | rreq = sftp_find_request(pktin = sftp_recv()); |
787 | assert(rreq == req); |
788 | swcm->names = fxp_readdir_recv(pktin, rreq); |
789 | |
790 | if (!swcm->names) { |
791 | if (fxp_error_type() != SSH_FX_EOF) |
792 | printf("%s: reading directory: %s\n", swcm->prefix, |
793 | fxp_error()); |
794 | return NULL; |
795 | } |
796 | |
797 | swcm->namepos = 0; |
798 | } |
799 | |
800 | assert(swcm->names && swcm->namepos < swcm->names->nnames); |
801 | |
802 | name = &swcm->names->names[swcm->namepos++]; |
803 | |
804 | if (!strcmp(name->filename, ".") || !strcmp(name->filename, "..")) |
805 | continue; /* expected bad filenames */ |
806 | |
807 | if (!vet_filename(name->filename)) { |
808 | printf("ignoring potentially dangerous server-" |
809 | "supplied filename '%s'\n", name->filename); |
810 | continue; /* unexpected bad filename */ |
811 | } |
812 | |
813 | if (!wc_match(swcm->wildcard, name->filename)) |
814 | continue; /* doesn't match the wildcard */ |
815 | |
816 | /* |
817 | * We have a working filename. Return it. |
818 | */ |
819 | return dupprintf("%s%s%s", swcm->prefix, |
820 | swcm->prefix[strlen(swcm->prefix)-1]=='/' ? "" : "/", |
821 | name->filename); |
822 | } |
823 | } |
824 | |
825 | void sftp_finish_wildcard_matching(SftpWildcardMatcher *swcm) |
826 | { |
827 | struct sftp_packet *pktin; |
828 | struct sftp_request *req, *rreq; |
829 | |
830 | sftp_register(req = fxp_close_send(swcm->dirh)); |
831 | rreq = sftp_find_request(pktin = sftp_recv()); |
832 | assert(rreq == req); |
833 | fxp_close_recv(pktin, rreq); |
834 | |
835 | if (swcm->names) |
836 | fxp_free_names(swcm->names); |
837 | |
838 | sfree(swcm->prefix); |
839 | sfree(swcm->wildcard); |
840 | |
841 | sfree(swcm); |
842 | } |
843 | |
844 | /* ---------------------------------------------------------------------- |
93e86a8b |
845 | * Actual sftp commands. |
846 | */ |
847 | struct sftp_command { |
848 | char **words; |
849 | int nwords, wordssize; |
850 | int (*obey) (struct sftp_command *); /* returns <0 to quit */ |
851 | }; |
852 | |
853 | int sftp_cmd_null(struct sftp_command *cmd) |
854 | { |
855 | return 1; /* success */ |
856 | } |
857 | |
858 | int sftp_cmd_unknown(struct sftp_command *cmd) |
859 | { |
860 | printf("psftp: unknown command \"%s\"\n", cmd->words[0]); |
861 | return 0; /* failure */ |
862 | } |
863 | |
864 | int sftp_cmd_quit(struct sftp_command *cmd) |
865 | { |
866 | return -1; |
867 | } |
868 | |
b614ce89 |
869 | int sftp_cmd_close(struct sftp_command *cmd) |
870 | { |
871 | if (back == NULL) { |
872 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
873 | return 0; |
874 | } |
875 | |
876 | if (back != NULL && back->socket(backhandle) != NULL) { |
877 | char ch; |
878 | back->special(backhandle, TS_EOF); |
879 | sftp_recvdata(&ch, 1); |
880 | } |
881 | do_sftp_cleanup(); |
882 | |
883 | return 0; |
884 | } |
885 | |
93e86a8b |
886 | /* |
887 | * List a directory. If no arguments are given, list pwd; otherwise |
888 | * list the directory given in words[1]. |
889 | */ |
890 | int sftp_cmd_ls(struct sftp_command *cmd) |
891 | { |
892 | struct fxp_handle *dirh; |
893 | struct fxp_names *names; |
894 | struct fxp_name **ournames; |
895 | int nnames, namesize; |
3394416c |
896 | char *dir, *cdir, *unwcdir, *wildcard; |
93e86a8b |
897 | struct sftp_packet *pktin; |
898 | struct sftp_request *req, *rreq; |
899 | int i; |
900 | |
901 | if (back == NULL) { |
902 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
903 | return 0; |
904 | } |
905 | |
906 | if (cmd->nwords < 2) |
907 | dir = "."; |
908 | else |
909 | dir = cmd->words[1]; |
910 | |
3394416c |
911 | unwcdir = snewn(1 + strlen(dir), char); |
912 | if (wc_unescape(unwcdir, dir)) { |
913 | dir = unwcdir; |
914 | wildcard = NULL; |
915 | } else { |
916 | char *tmpdir; |
917 | int len, check; |
918 | |
919 | wildcard = stripslashes(dir, 0); |
920 | unwcdir = dupstr(dir); |
921 | len = wildcard - dir; |
922 | unwcdir[len] = '\0'; |
923 | if (len > 0 && unwcdir[len-1] == '/') |
924 | unwcdir[len-1] = '\0'; |
925 | tmpdir = snewn(1 + len, char); |
926 | check = wc_unescape(tmpdir, unwcdir); |
927 | sfree(tmpdir); |
928 | if (!check) { |
929 | printf("Multiple-level wildcards are not supported\n"); |
930 | sfree(unwcdir); |
931 | return 0; |
932 | } |
933 | dir = unwcdir; |
934 | } |
935 | |
93e86a8b |
936 | cdir = canonify(dir); |
937 | if (!cdir) { |
938 | printf("%s: %s\n", dir, fxp_error()); |
3394416c |
939 | sfree(unwcdir); |
93e86a8b |
940 | return 0; |
941 | } |
942 | |
943 | printf("Listing directory %s\n", cdir); |
944 | |
945 | sftp_register(req = fxp_opendir_send(cdir)); |
946 | rreq = sftp_find_request(pktin = sftp_recv()); |
947 | assert(rreq == req); |
948 | dirh = fxp_opendir_recv(pktin, rreq); |
949 | |
950 | if (dirh == NULL) { |
951 | printf("Unable to open %s: %s\n", dir, fxp_error()); |
952 | } else { |
953 | nnames = namesize = 0; |
954 | ournames = NULL; |
955 | |
956 | while (1) { |
957 | |
958 | sftp_register(req = fxp_readdir_send(dirh)); |
959 | rreq = sftp_find_request(pktin = sftp_recv()); |
960 | assert(rreq == req); |
961 | names = fxp_readdir_recv(pktin, rreq); |
962 | |
963 | if (names == NULL) { |
964 | if (fxp_error_type() == SSH_FX_EOF) |
965 | break; |
966 | printf("Reading directory %s: %s\n", dir, fxp_error()); |
967 | break; |
968 | } |
969 | if (names->nnames == 0) { |
970 | fxp_free_names(names); |
971 | break; |
972 | } |
973 | |
974 | if (nnames + names->nnames >= namesize) { |
975 | namesize += names->nnames + 128; |
976 | ournames = sresize(ournames, namesize, struct fxp_name *); |
977 | } |
978 | |
979 | for (i = 0; i < names->nnames; i++) |
3394416c |
980 | if (!wildcard || wc_match(wildcard, names->names[i].filename)) |
981 | ournames[nnames++] = fxp_dup_name(&names->names[i]); |
93e86a8b |
982 | |
983 | fxp_free_names(names); |
984 | } |
985 | sftp_register(req = fxp_close_send(dirh)); |
986 | rreq = sftp_find_request(pktin = sftp_recv()); |
987 | assert(rreq == req); |
988 | fxp_close_recv(pktin, rreq); |
989 | |
990 | /* |
991 | * Now we have our filenames. Sort them by actual file |
992 | * name, and then output the longname parts. |
993 | */ |
994 | qsort(ournames, nnames, sizeof(*ournames), sftp_name_compare); |
995 | |
996 | /* |
997 | * And print them. |
998 | */ |
999 | for (i = 0; i < nnames; i++) { |
1000 | printf("%s\n", ournames[i]->longname); |
1001 | fxp_free_name(ournames[i]); |
1002 | } |
1003 | sfree(ournames); |
1004 | } |
1005 | |
1006 | sfree(cdir); |
3394416c |
1007 | sfree(unwcdir); |
93e86a8b |
1008 | |
1009 | return 1; |
1010 | } |
1011 | |
1012 | /* |
1013 | * Change directories. We do this by canonifying the new name, then |
1014 | * trying to OPENDIR it. Only if that succeeds do we set the new pwd. |
1015 | */ |
1016 | int sftp_cmd_cd(struct sftp_command *cmd) |
1017 | { |
1018 | struct fxp_handle *dirh; |
1019 | struct sftp_packet *pktin; |
1020 | struct sftp_request *req, *rreq; |
1021 | char *dir; |
1022 | |
1023 | if (back == NULL) { |
1024 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
1025 | return 0; |
1026 | } |
1027 | |
1028 | if (cmd->nwords < 2) |
1029 | dir = dupstr(homedir); |
1030 | else |
1031 | dir = canonify(cmd->words[1]); |
1032 | |
1033 | if (!dir) { |
1034 | printf("%s: %s\n", dir, fxp_error()); |
1035 | return 0; |
1036 | } |
1037 | |
1038 | sftp_register(req = fxp_opendir_send(dir)); |
1039 | rreq = sftp_find_request(pktin = sftp_recv()); |
1040 | assert(rreq == req); |
1041 | dirh = fxp_opendir_recv(pktin, rreq); |
1042 | |
1043 | if (!dirh) { |
1044 | printf("Directory %s: %s\n", dir, fxp_error()); |
1045 | sfree(dir); |
1046 | return 0; |
1047 | } |
1048 | |
1049 | sftp_register(req = fxp_close_send(dirh)); |
1050 | rreq = sftp_find_request(pktin = sftp_recv()); |
1051 | assert(rreq == req); |
1052 | fxp_close_recv(pktin, rreq); |
1053 | |
1054 | sfree(pwd); |
1055 | pwd = dir; |
1056 | printf("Remote directory is now %s\n", pwd); |
1057 | |
1058 | return 1; |
1059 | } |
1060 | |
1061 | /* |
1062 | * Print current directory. Easy as pie. |
1063 | */ |
1064 | int sftp_cmd_pwd(struct sftp_command *cmd) |
1065 | { |
1066 | if (back == NULL) { |
1067 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
1068 | return 0; |
1069 | } |
1070 | |
1071 | printf("Remote directory is %s\n", pwd); |
1072 | return 1; |
1073 | } |
1074 | |
1075 | /* |
9c77ddf6 |
1076 | * Get a file and save it at the local end. We have three very |
1077 | * similar commands here. The basic one is `get'; `reget' differs |
1078 | * in that it checks for the existence of the destination file and |
1079 | * starts from where a previous aborted transfer left off; `mget' |
1080 | * differs in that it interprets all its arguments as files to |
1081 | * transfer (never as a different local name for a remote file) and |
1082 | * can handle wildcards. |
93e86a8b |
1083 | */ |
9c77ddf6 |
1084 | int sftp_general_get(struct sftp_command *cmd, int restart, int multiple) |
93e86a8b |
1085 | { |
5079ee6d |
1086 | char *fname, *unwcfname, *origfname, *origwfname, *outfname; |
93e86a8b |
1087 | int i, ret; |
1088 | int recurse = FALSE; |
1089 | |
1090 | if (back == NULL) { |
1091 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
1092 | return 0; |
1093 | } |
1094 | |
1095 | i = 1; |
1096 | while (i < cmd->nwords && cmd->words[i][0] == '-') { |
1097 | if (!strcmp(cmd->words[i], "--")) { |
1098 | /* finish processing options */ |
1099 | i++; |
1100 | break; |
1101 | } else if (!strcmp(cmd->words[i], "-r")) { |
1102 | recurse = TRUE; |
1103 | } else { |
9033711a |
1104 | printf("%s: unrecognised option '%s'\n", cmd->words[0], cmd->words[i]); |
93e86a8b |
1105 | return 0; |
1106 | } |
1107 | i++; |
1108 | } |
1109 | |
1110 | if (i >= cmd->nwords) { |
9033711a |
1111 | printf("%s: expects a filename\n", cmd->words[0]); |
93e86a8b |
1112 | return 0; |
1113 | } |
1114 | |
5079ee6d |
1115 | ret = 1; |
9c77ddf6 |
1116 | do { |
5079ee6d |
1117 | SftpWildcardMatcher *swcm; |
1118 | |
9c77ddf6 |
1119 | origfname = cmd->words[i++]; |
5079ee6d |
1120 | unwcfname = snewn(strlen(origfname)+1, char); |
93e86a8b |
1121 | |
5079ee6d |
1122 | if (multiple && !wc_unescape(unwcfname, origfname)) { |
1123 | swcm = sftp_begin_wildcard_matching(origfname); |
1124 | if (!swcm) { |
1125 | sfree(unwcfname); |
1126 | continue; |
1127 | } |
1128 | origwfname = sftp_wildcard_get_filename(swcm); |
1129 | if (!origwfname) { |
1130 | /* Politely warn the user that nothing matched. */ |
1131 | printf("%s: nothing matched\n", origfname); |
1132 | sftp_finish_wildcard_matching(swcm); |
1133 | sfree(unwcfname); |
1134 | continue; |
1135 | } |
9c77ddf6 |
1136 | } else { |
5079ee6d |
1137 | origwfname = origfname; |
1138 | swcm = NULL; |
1139 | } |
1140 | |
1141 | while (origwfname) { |
1142 | fname = canonify(origwfname); |
1143 | |
9c77ddf6 |
1144 | if (!fname) { |
5079ee6d |
1145 | printf("%s: %s\n", origwfname, fxp_error()); |
9c77ddf6 |
1146 | sfree(unwcfname); |
1147 | return 0; |
1148 | } |
93e86a8b |
1149 | |
9c77ddf6 |
1150 | if (!multiple && i < cmd->nwords) |
1151 | outfname = cmd->words[i++]; |
1152 | else |
5079ee6d |
1153 | outfname = stripslashes(origwfname, 0); |
93e86a8b |
1154 | |
5079ee6d |
1155 | ret = sftp_get_file(fname, outfname, recurse, restart); |
9c77ddf6 |
1156 | |
1157 | sfree(fname); |
5079ee6d |
1158 | |
1159 | if (swcm) { |
1160 | sfree(origwfname); |
1161 | origwfname = sftp_wildcard_get_filename(swcm); |
1162 | } else { |
1163 | origwfname = NULL; |
1164 | } |
9c77ddf6 |
1165 | } |
1166 | sfree(unwcfname); |
5079ee6d |
1167 | if (swcm) |
1168 | sftp_finish_wildcard_matching(swcm); |
9c77ddf6 |
1169 | if (!ret) |
1170 | return ret; |
1171 | |
1172 | } while (multiple && i < cmd->nwords); |
93e86a8b |
1173 | |
1174 | return ret; |
1175 | } |
1176 | int sftp_cmd_get(struct sftp_command *cmd) |
1177 | { |
9c77ddf6 |
1178 | return sftp_general_get(cmd, 0, 0); |
1179 | } |
1180 | int sftp_cmd_mget(struct sftp_command *cmd) |
1181 | { |
1182 | return sftp_general_get(cmd, 0, 1); |
93e86a8b |
1183 | } |
1184 | int sftp_cmd_reget(struct sftp_command *cmd) |
1185 | { |
9c77ddf6 |
1186 | return sftp_general_get(cmd, 1, 0); |
93e86a8b |
1187 | } |
1188 | |
1189 | /* |
9c77ddf6 |
1190 | * Send a file and store it at the remote end. We have three very |
1191 | * similar commands here. The basic one is `put'; `reput' differs |
1192 | * in that it checks for the existence of the destination file and |
1193 | * starts from where a previous aborted transfer left off; `mput' |
1194 | * differs in that it interprets all its arguments as files to |
1195 | * transfer (never as a different remote name for a local file) and |
1196 | * can handle wildcards. |
93e86a8b |
1197 | */ |
9c77ddf6 |
1198 | int sftp_general_put(struct sftp_command *cmd, int restart, int multiple) |
93e86a8b |
1199 | { |
5079ee6d |
1200 | char *fname, *wfname, *origoutfname, *outfname; |
93e86a8b |
1201 | int i, ret; |
1202 | int recurse = FALSE; |
1203 | |
1204 | if (back == NULL) { |
1205 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
1206 | return 0; |
1207 | } |
1208 | |
1209 | i = 1; |
1210 | while (i < cmd->nwords && cmd->words[i][0] == '-') { |
1211 | if (!strcmp(cmd->words[i], "--")) { |
1212 | /* finish processing options */ |
1213 | i++; |
1214 | break; |
1215 | } else if (!strcmp(cmd->words[i], "-r")) { |
1216 | recurse = TRUE; |
1217 | } else { |
9033711a |
1218 | printf("%s: unrecognised option '%s'\n", cmd->words[0], cmd->words[i]); |
93e86a8b |
1219 | return 0; |
1220 | } |
1221 | i++; |
1222 | } |
1223 | |
1224 | if (i >= cmd->nwords) { |
9033711a |
1225 | printf("%s: expects a filename\n", cmd->words[0]); |
93e86a8b |
1226 | return 0; |
1227 | } |
1228 | |
5079ee6d |
1229 | ret = 1; |
9c77ddf6 |
1230 | do { |
5079ee6d |
1231 | WildcardMatcher *wcm; |
9c77ddf6 |
1232 | fname = cmd->words[i++]; |
93e86a8b |
1233 | |
9c77ddf6 |
1234 | if (multiple && test_wildcard(fname, FALSE) == WCTYPE_WILDCARD) { |
5079ee6d |
1235 | wcm = begin_wildcard_matching(fname); |
1236 | wfname = wildcard_get_filename(wcm); |
1237 | if (!wfname) { |
1238 | /* Politely warn the user that nothing matched. */ |
1239 | printf("%s: nothing matched\n", fname); |
1240 | finish_wildcard_matching(wcm); |
1241 | continue; |
1242 | } |
9c77ddf6 |
1243 | } else { |
5079ee6d |
1244 | wfname = fname; |
1245 | wcm = NULL; |
1246 | } |
1247 | |
1248 | while (wfname) { |
9c77ddf6 |
1249 | if (!multiple && i < cmd->nwords) |
1250 | origoutfname = cmd->words[i++]; |
1251 | else |
5079ee6d |
1252 | origoutfname = stripslashes(wfname, 1); |
9c77ddf6 |
1253 | |
1254 | outfname = canonify(origoutfname); |
1255 | if (!outfname) { |
1256 | printf("%s: %s\n", origoutfname, fxp_error()); |
5079ee6d |
1257 | if (wcm) { |
1258 | sfree(wfname); |
1259 | finish_wildcard_matching(wcm); |
1260 | } |
9c77ddf6 |
1261 | return 0; |
1262 | } |
5079ee6d |
1263 | ret = sftp_put_file(wfname, outfname, recurse, restart); |
9c77ddf6 |
1264 | sfree(outfname); |
5079ee6d |
1265 | |
1266 | if (wcm) { |
1267 | sfree(wfname); |
1268 | wfname = wildcard_get_filename(wcm); |
1269 | } else { |
1270 | wfname = NULL; |
1271 | } |
9c77ddf6 |
1272 | } |
5079ee6d |
1273 | |
1274 | if (wcm) |
1275 | finish_wildcard_matching(wcm); |
1276 | |
9c77ddf6 |
1277 | if (!ret) |
1278 | return ret; |
93e86a8b |
1279 | |
9c77ddf6 |
1280 | } while (multiple && i < cmd->nwords); |
4c7f0d61 |
1281 | |
df49ff19 |
1282 | return ret; |
4c7f0d61 |
1283 | } |
d92624dc |
1284 | int sftp_cmd_put(struct sftp_command *cmd) |
1285 | { |
9c77ddf6 |
1286 | return sftp_general_put(cmd, 0, 0); |
1287 | } |
1288 | int sftp_cmd_mput(struct sftp_command *cmd) |
1289 | { |
1290 | return sftp_general_put(cmd, 0, 1); |
d92624dc |
1291 | } |
1292 | int sftp_cmd_reput(struct sftp_command *cmd) |
1293 | { |
9c77ddf6 |
1294 | return sftp_general_put(cmd, 1, 0); |
d92624dc |
1295 | } |
4c7f0d61 |
1296 | |
9954aaa3 |
1297 | int sftp_cmd_mkdir(struct sftp_command *cmd) |
1298 | { |
1299 | char *dir; |
1bc24185 |
1300 | struct sftp_packet *pktin; |
1301 | struct sftp_request *req, *rreq; |
9954aaa3 |
1302 | int result; |
1303 | |
fa3db767 |
1304 | if (back == NULL) { |
1305 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
1306 | return 0; |
1307 | } |
9954aaa3 |
1308 | |
1309 | if (cmd->nwords < 2) { |
1310 | printf("mkdir: expects a directory\n"); |
1311 | return 0; |
1312 | } |
1313 | |
1314 | dir = canonify(cmd->words[1]); |
1315 | if (!dir) { |
1316 | printf("%s: %s\n", dir, fxp_error()); |
1317 | return 0; |
1318 | } |
1319 | |
1bc24185 |
1320 | sftp_register(req = fxp_mkdir_send(dir)); |
1321 | rreq = sftp_find_request(pktin = sftp_recv()); |
1322 | assert(rreq == req); |
7b7de4f4 |
1323 | result = fxp_mkdir_recv(pktin, rreq); |
1bc24185 |
1324 | |
9954aaa3 |
1325 | if (!result) { |
1326 | printf("mkdir %s: %s\n", dir, fxp_error()); |
1327 | sfree(dir); |
1328 | return 0; |
1329 | } |
1330 | |
d92624dc |
1331 | sfree(dir); |
df49ff19 |
1332 | return 1; |
9954aaa3 |
1333 | } |
1334 | |
1335 | int sftp_cmd_rmdir(struct sftp_command *cmd) |
1336 | { |
1337 | char *dir; |
1bc24185 |
1338 | struct sftp_packet *pktin; |
1339 | struct sftp_request *req, *rreq; |
9954aaa3 |
1340 | int result; |
1341 | |
fa3db767 |
1342 | if (back == NULL) { |
1343 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
1344 | return 0; |
1345 | } |
9954aaa3 |
1346 | |
1347 | if (cmd->nwords < 2) { |
1348 | printf("rmdir: expects a directory\n"); |
1349 | return 0; |
1350 | } |
1351 | |
1352 | dir = canonify(cmd->words[1]); |
1353 | if (!dir) { |
1354 | printf("%s: %s\n", dir, fxp_error()); |
1355 | return 0; |
1356 | } |
1357 | |
1bc24185 |
1358 | sftp_register(req = fxp_rmdir_send(dir)); |
1359 | rreq = sftp_find_request(pktin = sftp_recv()); |
1360 | assert(rreq == req); |
7b7de4f4 |
1361 | result = fxp_rmdir_recv(pktin, rreq); |
1bc24185 |
1362 | |
9954aaa3 |
1363 | if (!result) { |
1364 | printf("rmdir %s: %s\n", dir, fxp_error()); |
1365 | sfree(dir); |
1366 | return 0; |
1367 | } |
1368 | |
d92624dc |
1369 | sfree(dir); |
df49ff19 |
1370 | return 1; |
9954aaa3 |
1371 | } |
1372 | |
1373 | int sftp_cmd_rm(struct sftp_command *cmd) |
1374 | { |
1375 | char *fname; |
1bc24185 |
1376 | struct sftp_packet *pktin; |
1377 | struct sftp_request *req, *rreq; |
9954aaa3 |
1378 | int result; |
1379 | |
fa3db767 |
1380 | if (back == NULL) { |
1381 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
1382 | return 0; |
1383 | } |
1384 | |
9954aaa3 |
1385 | if (cmd->nwords < 2) { |
1386 | printf("rm: expects a filename\n"); |
1387 | return 0; |
1388 | } |
1389 | |
1390 | fname = canonify(cmd->words[1]); |
1391 | if (!fname) { |
1392 | printf("%s: %s\n", fname, fxp_error()); |
1393 | return 0; |
1394 | } |
1395 | |
1bc24185 |
1396 | sftp_register(req = fxp_remove_send(fname)); |
1397 | rreq = sftp_find_request(pktin = sftp_recv()); |
1398 | assert(rreq == req); |
7b7de4f4 |
1399 | result = fxp_remove_recv(pktin, rreq); |
1bc24185 |
1400 | |
9954aaa3 |
1401 | if (!result) { |
1402 | printf("rm %s: %s\n", fname, fxp_error()); |
1403 | sfree(fname); |
1404 | return 0; |
1405 | } |
1406 | |
d92624dc |
1407 | sfree(fname); |
df49ff19 |
1408 | return 1; |
d92624dc |
1409 | } |
1410 | |
1411 | int sftp_cmd_mv(struct sftp_command *cmd) |
1412 | { |
1413 | char *srcfname, *dstfname; |
1bc24185 |
1414 | struct sftp_packet *pktin; |
1415 | struct sftp_request *req, *rreq; |
d92624dc |
1416 | int result; |
1417 | |
fa3db767 |
1418 | if (back == NULL) { |
1419 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
1420 | return 0; |
1421 | } |
1422 | |
d92624dc |
1423 | if (cmd->nwords < 3) { |
1424 | printf("mv: expects two filenames\n"); |
9954aaa3 |
1425 | return 0; |
d92624dc |
1426 | } |
1427 | srcfname = canonify(cmd->words[1]); |
1428 | if (!srcfname) { |
1429 | printf("%s: %s\n", srcfname, fxp_error()); |
1430 | return 0; |
1431 | } |
1432 | |
1433 | dstfname = canonify(cmd->words[2]); |
1434 | if (!dstfname) { |
1435 | printf("%s: %s\n", dstfname, fxp_error()); |
1436 | return 0; |
1437 | } |
9954aaa3 |
1438 | |
1bc24185 |
1439 | sftp_register(req = fxp_rename_send(srcfname, dstfname)); |
1440 | rreq = sftp_find_request(pktin = sftp_recv()); |
1441 | assert(rreq == req); |
7b7de4f4 |
1442 | result = fxp_rename_recv(pktin, rreq); |
1bc24185 |
1443 | |
d92624dc |
1444 | if (!result) { |
1445 | char const *error = fxp_error(); |
1446 | struct fxp_attrs attrs; |
1447 | |
1448 | /* |
1449 | * The move might have failed because dstfname pointed at a |
1450 | * directory. We check this possibility now: if dstfname |
1451 | * _is_ a directory, we re-attempt the move by appending |
1452 | * the basename of srcfname to dstfname. |
1453 | */ |
1bc24185 |
1454 | sftp_register(req = fxp_stat_send(dstfname)); |
1455 | rreq = sftp_find_request(pktin = sftp_recv()); |
1456 | assert(rreq == req); |
7b7de4f4 |
1457 | result = fxp_stat_recv(pktin, rreq, &attrs); |
1bc24185 |
1458 | |
d92624dc |
1459 | if (result && |
1460 | (attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) && |
1461 | (attrs.permissions & 0040000)) { |
1462 | char *p; |
1463 | char *newname, *newcanon; |
1464 | printf("(destination %s is a directory)\n", dstfname); |
1465 | p = srcfname + strlen(srcfname); |
1466 | while (p > srcfname && p[-1] != '/') p--; |
1467 | newname = dupcat(dstfname, "/", p, NULL); |
1468 | newcanon = canonify(newname); |
1469 | sfree(newname); |
1470 | if (newcanon) { |
1471 | sfree(dstfname); |
1472 | dstfname = newcanon; |
1bc24185 |
1473 | |
1474 | sftp_register(req = fxp_rename_send(srcfname, dstfname)); |
1475 | rreq = sftp_find_request(pktin = sftp_recv()); |
1476 | assert(rreq == req); |
7b7de4f4 |
1477 | result = fxp_rename_recv(pktin, rreq); |
1bc24185 |
1478 | |
d92624dc |
1479 | error = result ? NULL : fxp_error(); |
1480 | } |
1481 | } |
1482 | if (error) { |
1483 | printf("mv %s %s: %s\n", srcfname, dstfname, error); |
1484 | sfree(srcfname); |
1485 | sfree(dstfname); |
1486 | return 0; |
1487 | } |
1488 | } |
1489 | printf("%s -> %s\n", srcfname, dstfname); |
1490 | |
1491 | sfree(srcfname); |
1492 | sfree(dstfname); |
df49ff19 |
1493 | return 1; |
9954aaa3 |
1494 | } |
1495 | |
d92624dc |
1496 | int sftp_cmd_chmod(struct sftp_command *cmd) |
1497 | { |
1498 | char *fname, *mode; |
1499 | int result; |
1500 | struct fxp_attrs attrs; |
1501 | unsigned attrs_clr, attrs_xor, oldperms, newperms; |
1bc24185 |
1502 | struct sftp_packet *pktin; |
1503 | struct sftp_request *req, *rreq; |
d92624dc |
1504 | |
fa3db767 |
1505 | if (back == NULL) { |
1506 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
1507 | return 0; |
1508 | } |
1509 | |
d92624dc |
1510 | if (cmd->nwords < 3) { |
1511 | printf("chmod: expects a mode specifier and a filename\n"); |
1512 | return 0; |
1513 | } |
1514 | |
1515 | /* |
1516 | * Attempt to parse the mode specifier in cmd->words[1]. We |
1517 | * don't support the full horror of Unix chmod; instead we |
1518 | * support a much simpler syntax in which the user can either |
1519 | * specify an octal number, or a comma-separated sequence of |
1520 | * [ugoa]*[-+=][rwxst]+. (The initial [ugoa] sequence may |
1521 | * _only_ be omitted if the only attribute mentioned is t, |
1522 | * since all others require a user/group/other specification. |
1523 | * Additionally, the s attribute may not be specified for any |
1524 | * [ugoa] specifications other than exactly u or exactly g. |
1525 | */ |
1526 | attrs_clr = attrs_xor = 0; |
1527 | mode = cmd->words[1]; |
1528 | if (mode[0] >= '0' && mode[0] <= '9') { |
1529 | if (mode[strspn(mode, "01234567")]) { |
1530 | printf("chmod: numeric file modes should" |
1531 | " contain digits 0-7 only\n"); |
1532 | return 0; |
1533 | } |
1534 | attrs_clr = 07777; |
1535 | sscanf(mode, "%o", &attrs_xor); |
1536 | attrs_xor &= attrs_clr; |
1537 | } else { |
1538 | while (*mode) { |
1539 | char *modebegin = mode; |
1540 | unsigned subset, perms; |
1541 | int action; |
1542 | |
1543 | subset = 0; |
1544 | while (*mode && *mode != ',' && |
1545 | *mode != '+' && *mode != '-' && *mode != '=') { |
1546 | switch (*mode) { |
1547 | case 'u': subset |= 04700; break; /* setuid, user perms */ |
1548 | case 'g': subset |= 02070; break; /* setgid, group perms */ |
1549 | case 'o': subset |= 00007; break; /* just other perms */ |
1550 | case 'a': subset |= 06777; break; /* all of the above */ |
1551 | default: |
1552 | printf("chmod: file mode '%.*s' contains unrecognised" |
1553 | " user/group/other specifier '%c'\n", |
b51259f6 |
1554 | (int)strcspn(modebegin, ","), modebegin, *mode); |
d92624dc |
1555 | return 0; |
1556 | } |
1557 | mode++; |
1558 | } |
1559 | if (!*mode || *mode == ',') { |
1560 | printf("chmod: file mode '%.*s' is incomplete\n", |
b51259f6 |
1561 | (int)strcspn(modebegin, ","), modebegin); |
d92624dc |
1562 | return 0; |
1563 | } |
1564 | action = *mode++; |
1565 | if (!*mode || *mode == ',') { |
1566 | printf("chmod: file mode '%.*s' is incomplete\n", |
b51259f6 |
1567 | (int)strcspn(modebegin, ","), modebegin); |
d92624dc |
1568 | return 0; |
1569 | } |
1570 | perms = 0; |
1571 | while (*mode && *mode != ',') { |
1572 | switch (*mode) { |
1573 | case 'r': perms |= 00444; break; |
1574 | case 'w': perms |= 00222; break; |
1575 | case 'x': perms |= 00111; break; |
1576 | case 't': perms |= 01000; subset |= 01000; break; |
1577 | case 's': |
1578 | if ((subset & 06777) != 04700 && |
1579 | (subset & 06777) != 02070) { |
1580 | printf("chmod: file mode '%.*s': set[ug]id bit should" |
1581 | " be used with exactly one of u or g only\n", |
b51259f6 |
1582 | (int)strcspn(modebegin, ","), modebegin); |
d92624dc |
1583 | return 0; |
1584 | } |
1585 | perms |= 06000; |
1586 | break; |
1587 | default: |
1588 | printf("chmod: file mode '%.*s' contains unrecognised" |
1589 | " permission specifier '%c'\n", |
b51259f6 |
1590 | (int)strcspn(modebegin, ","), modebegin, *mode); |
d92624dc |
1591 | return 0; |
1592 | } |
1593 | mode++; |
1594 | } |
1595 | if (!(subset & 06777) && (perms &~ subset)) { |
1596 | printf("chmod: file mode '%.*s' contains no user/group/other" |
1597 | " specifier and permissions other than 't' \n", |
b51259f6 |
1598 | (int)strcspn(modebegin, ","), modebegin); |
d92624dc |
1599 | return 0; |
1600 | } |
1601 | perms &= subset; |
1602 | switch (action) { |
1603 | case '+': |
1604 | attrs_clr |= perms; |
1605 | attrs_xor |= perms; |
1606 | break; |
1607 | case '-': |
1608 | attrs_clr |= perms; |
1609 | attrs_xor &= ~perms; |
1610 | break; |
1611 | case '=': |
1612 | attrs_clr |= subset; |
1613 | attrs_xor |= perms; |
1614 | break; |
1615 | } |
1616 | if (*mode) mode++; /* eat comma */ |
1617 | } |
1618 | } |
1619 | |
1620 | fname = canonify(cmd->words[2]); |
1621 | if (!fname) { |
1622 | printf("%s: %s\n", fname, fxp_error()); |
1623 | return 0; |
1624 | } |
1625 | |
1bc24185 |
1626 | sftp_register(req = fxp_stat_send(fname)); |
1627 | rreq = sftp_find_request(pktin = sftp_recv()); |
1628 | assert(rreq == req); |
7b7de4f4 |
1629 | result = fxp_stat_recv(pktin, rreq, &attrs); |
1bc24185 |
1630 | |
d92624dc |
1631 | if (!result || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS)) { |
1632 | printf("get attrs for %s: %s\n", fname, |
1633 | result ? "file permissions not provided" : fxp_error()); |
1634 | sfree(fname); |
1635 | return 0; |
1636 | } |
1637 | |
1638 | attrs.flags = SSH_FILEXFER_ATTR_PERMISSIONS; /* perms _only_ */ |
1639 | oldperms = attrs.permissions & 07777; |
1640 | attrs.permissions &= ~attrs_clr; |
1641 | attrs.permissions ^= attrs_xor; |
1642 | newperms = attrs.permissions & 07777; |
1643 | |
1bc24185 |
1644 | sftp_register(req = fxp_setstat_send(fname, attrs)); |
1645 | rreq = sftp_find_request(pktin = sftp_recv()); |
1646 | assert(rreq == req); |
7b7de4f4 |
1647 | result = fxp_setstat_recv(pktin, rreq); |
d92624dc |
1648 | |
1649 | if (!result) { |
1650 | printf("set attrs for %s: %s\n", fname, fxp_error()); |
1651 | sfree(fname); |
1652 | return 0; |
1653 | } |
1654 | |
1655 | printf("%s: %04o -> %04o\n", fname, oldperms, newperms); |
1656 | |
1657 | sfree(fname); |
df49ff19 |
1658 | return 1; |
d92624dc |
1659 | } |
9954aaa3 |
1660 | |
fa3db767 |
1661 | static int sftp_cmd_open(struct sftp_command *cmd) |
1662 | { |
f11233cb |
1663 | int portnumber; |
1664 | |
fa3db767 |
1665 | if (back != NULL) { |
1666 | printf("psftp: already connected\n"); |
1667 | return 0; |
1668 | } |
1669 | |
1670 | if (cmd->nwords < 2) { |
1671 | printf("open: expects a host name\n"); |
1672 | return 0; |
1673 | } |
1674 | |
f11233cb |
1675 | if (cmd->nwords > 2) { |
1676 | portnumber = atoi(cmd->words[2]); |
1677 | if (portnumber == 0) { |
1678 | printf("open: invalid port number\n"); |
1679 | return 0; |
1680 | } |
1681 | } else |
1682 | portnumber = 0; |
1683 | |
1684 | if (psftp_connect(cmd->words[1], NULL, portnumber)) { |
fa3db767 |
1685 | back = NULL; /* connection is already closed */ |
1686 | return -1; /* this is fatal */ |
1687 | } |
1688 | do_sftp_init(); |
df49ff19 |
1689 | return 1; |
fa3db767 |
1690 | } |
1691 | |
3af97463 |
1692 | static int sftp_cmd_lcd(struct sftp_command *cmd) |
1693 | { |
d6cc41e6 |
1694 | char *currdir, *errmsg; |
3af97463 |
1695 | |
1696 | if (cmd->nwords < 2) { |
1697 | printf("lcd: expects a local directory name\n"); |
1698 | return 0; |
1699 | } |
1700 | |
d6cc41e6 |
1701 | errmsg = psftp_lcd(cmd->words[1]); |
1702 | if (errmsg) { |
1703 | printf("lcd: unable to change directory: %s\n", errmsg); |
1704 | sfree(errmsg); |
3af97463 |
1705 | return 0; |
1706 | } |
1707 | |
d6cc41e6 |
1708 | currdir = psftp_getcwd(); |
3af97463 |
1709 | printf("New local directory is %s\n", currdir); |
1710 | sfree(currdir); |
1711 | |
1712 | return 1; |
1713 | } |
1714 | |
1715 | static int sftp_cmd_lpwd(struct sftp_command *cmd) |
1716 | { |
1717 | char *currdir; |
3af97463 |
1718 | |
d6cc41e6 |
1719 | currdir = psftp_getcwd(); |
3af97463 |
1720 | printf("Current local directory is %s\n", currdir); |
1721 | sfree(currdir); |
1722 | |
1723 | return 1; |
1724 | } |
1725 | |
1726 | static int sftp_cmd_pling(struct sftp_command *cmd) |
1727 | { |
1728 | int exitcode; |
1729 | |
1730 | exitcode = system(cmd->words[1]); |
1731 | return (exitcode == 0); |
1732 | } |
1733 | |
bf5240cd |
1734 | static int sftp_cmd_help(struct sftp_command *cmd); |
1735 | |
4c7f0d61 |
1736 | static struct sftp_cmd_lookup { |
1737 | char *name; |
bf5240cd |
1738 | /* |
1739 | * For help purposes, there are two kinds of command: |
1740 | * |
1741 | * - primary commands, in which `longhelp' is non-NULL. In |
1742 | * this case `shorthelp' is descriptive text, and `longhelp' |
1743 | * is longer descriptive text intended to be printed after |
1744 | * the command name. |
1745 | * |
1746 | * - alias commands, in which `longhelp' is NULL. In this case |
1747 | * `shorthelp' is the name of a primary command, which |
1748 | * contains the help that should double up for this command. |
1749 | */ |
3af97463 |
1750 | int listed; /* do we list this in primary help? */ |
bf5240cd |
1751 | char *shorthelp; |
1752 | char *longhelp; |
32874aea |
1753 | int (*obey) (struct sftp_command *); |
4c7f0d61 |
1754 | } sftp_lookup[] = { |
1755 | /* |
1756 | * List of sftp commands. This is binary-searched so it MUST be |
1757 | * in ASCII order. |
1758 | */ |
32874aea |
1759 | { |
d6cc41e6 |
1760 | "!", TRUE, "run a local command", |
3af97463 |
1761 | "<command>\n" |
d6cc41e6 |
1762 | /* FIXME: this example is crap for non-Windows. */ |
1763 | " Runs a local command. For example, \"!del myfile\".\n", |
3af97463 |
1764 | sftp_cmd_pling |
1765 | }, |
1766 | { |
1767 | "bye", TRUE, "finish your SFTP session", |
bf5240cd |
1768 | "\n" |
1769 | " Terminates your SFTP session and quits the PSFTP program.\n", |
1770 | sftp_cmd_quit |
1771 | }, |
1772 | { |
3af97463 |
1773 | "cd", TRUE, "change your remote working directory", |
bf5240cd |
1774 | " [ <New working directory> ]\n" |
1775 | " Change the remote working directory for your SFTP session.\n" |
1776 | " If a new working directory is not supplied, you will be\n" |
1777 | " returned to your home directory.\n", |
1778 | sftp_cmd_cd |
1779 | }, |
1780 | { |
3af97463 |
1781 | "chmod", TRUE, "change file permissions and modes", |
bf5240cd |
1782 | " ( <octal-digits> | <modifiers> ) <filename>\n" |
1783 | " Change the file permissions on a file or directory.\n" |
1784 | " <octal-digits> can be any octal Unix permission specifier.\n" |
1785 | " Alternatively, <modifiers> can include:\n" |
1786 | " u+r make file readable by owning user\n" |
1787 | " u+w make file writable by owning user\n" |
1788 | " u+x make file executable by owning user\n" |
1789 | " u-r make file not readable by owning user\n" |
1790 | " [also u-w, u-x]\n" |
1791 | " g+r make file readable by members of owning group\n" |
1792 | " [also g+w, g+x, g-r, g-w, g-x]\n" |
1793 | " o+r make file readable by all other users\n" |
1794 | " [also o+w, o+x, o-r, o-w, o-x]\n" |
1795 | " a+r make file readable by absolutely everybody\n" |
1796 | " [also a+w, a+x, a-r, a-w, a-x]\n" |
1797 | " u+s enable the Unix set-user-ID bit\n" |
1798 | " u-s disable the Unix set-user-ID bit\n" |
1799 | " g+s enable the Unix set-group-ID bit\n" |
1800 | " g-s disable the Unix set-group-ID bit\n" |
1801 | " +t enable the Unix \"sticky bit\"\n" |
1802 | " You can give more than one modifier for the same user (\"g-rwx\"), and\n" |
1803 | " more than one user for the same modifier (\"ug+w\"). You can\n" |
1804 | " use commas to separate different modifiers (\"u+rwx,g+s\").\n", |
1805 | sftp_cmd_chmod |
1806 | }, |
1807 | { |
b614ce89 |
1808 | "close", TRUE, "finish your SFTP session but do not quit PSFTP", |
1809 | "\n" |
1810 | " Terminates your SFTP session, but does not quit the PSFTP\n" |
1811 | " program. You can then use \"open\" to start another SFTP\n" |
1812 | " session, to the same server or to a different one.\n", |
1813 | sftp_cmd_close |
1814 | }, |
1815 | { |
3af97463 |
1816 | "del", TRUE, "delete a file", |
bf5240cd |
1817 | " <filename>\n" |
1818 | " Delete a file.\n", |
1819 | sftp_cmd_rm |
1820 | }, |
1821 | { |
3af97463 |
1822 | "delete", FALSE, "del", NULL, sftp_cmd_rm |
bf5240cd |
1823 | }, |
1824 | { |
3af97463 |
1825 | "dir", TRUE, "list contents of a remote directory", |
9033711a |
1826 | " [ <directory-name> ]/[ <wildcard> ]\n" |
bf5240cd |
1827 | " List the contents of a specified directory on the server.\n" |
1828 | " If <directory-name> is not given, the current working directory\n" |
9033711a |
1829 | " is assumed.\n" |
1830 | " If <wildcard> is given, it is treated as a set of files to\n" |
1831 | " list; otherwise, all files are listed.\n", |
bf5240cd |
1832 | sftp_cmd_ls |
1833 | }, |
1834 | { |
3af97463 |
1835 | "exit", TRUE, "bye", NULL, sftp_cmd_quit |
bf5240cd |
1836 | }, |
1837 | { |
3af97463 |
1838 | "get", TRUE, "download a file from the server to your local machine", |
9033711a |
1839 | " [ -r ] [ -- ] <filename> [ <local-filename> ]\n" |
bf5240cd |
1840 | " Downloads a file on the server and stores it locally under\n" |
1841 | " the same name, or under a different one if you supply the\n" |
9033711a |
1842 | " argument <local-filename>.\n" |
1843 | " If -r specified, recursively fetch a directory.\n", |
bf5240cd |
1844 | sftp_cmd_get |
1845 | }, |
1846 | { |
3af97463 |
1847 | "help", TRUE, "give help", |
bf5240cd |
1848 | " [ <command> [ <command> ... ] ]\n" |
1849 | " Give general help if no commands are specified.\n" |
1850 | " If one or more commands are specified, give specific help on\n" |
1851 | " those particular commands.\n", |
1852 | sftp_cmd_help |
1853 | }, |
1854 | { |
3af97463 |
1855 | "lcd", TRUE, "change local working directory", |
1856 | " <local-directory-name>\n" |
1857 | " Change the local working directory of the PSFTP program (the\n" |
1858 | " default location where the \"get\" command will save files).\n", |
1859 | sftp_cmd_lcd |
1860 | }, |
1861 | { |
1862 | "lpwd", TRUE, "print local working directory", |
1863 | "\n" |
1864 | " Print the local working directory of the PSFTP program (the\n" |
1865 | " default location where the \"get\" command will save files).\n", |
1866 | sftp_cmd_lpwd |
1867 | }, |
1868 | { |
1869 | "ls", TRUE, "dir", NULL, |
bf5240cd |
1870 | sftp_cmd_ls |
1871 | }, |
1872 | { |
9c77ddf6 |
1873 | "mget", TRUE, "download multiple files at once", |
9033711a |
1874 | " [ -r ] [ -- ] <filename-or-wildcard> [ <filename-or-wildcard>... ]\n" |
9c77ddf6 |
1875 | " Downloads many files from the server, storing each one under\n" |
1876 | " the same name it has on the server side. You can use wildcards\n" |
9033711a |
1877 | " such as \"*.c\" to specify lots of files at once.\n" |
1878 | " If -r specified, recursively fetch files and directories.\n", |
9c77ddf6 |
1879 | sftp_cmd_mget |
1880 | }, |
1881 | { |
3af97463 |
1882 | "mkdir", TRUE, "create a directory on the remote server", |
bf5240cd |
1883 | " <directory-name>\n" |
1884 | " Creates a directory with the given name on the server.\n", |
1885 | sftp_cmd_mkdir |
1886 | }, |
1887 | { |
9c77ddf6 |
1888 | "mput", TRUE, "upload multiple files at once", |
96515f61 |
1889 | " [ -r ] [ -- ] <filename-or-wildcard> [ <filename-or-wildcard>... ]\n" |
9c77ddf6 |
1890 | " Uploads many files to the server, storing each one under the\n" |
1891 | " same name it has on the client side. You can use wildcards\n" |
9033711a |
1892 | " such as \"*.c\" to specify lots of files at once.\n" |
1893 | " If -r specified, recursively store files and directories.\n", |
9c77ddf6 |
1894 | sftp_cmd_mput |
1895 | }, |
1896 | { |
3af97463 |
1897 | "mv", TRUE, "move or rename a file on the remote server", |
bf5240cd |
1898 | " <source-filename> <destination-filename>\n" |
1899 | " Moves or renames the file <source-filename> on the server,\n" |
1900 | " so that it is accessible under the name <destination-filename>.\n", |
1901 | sftp_cmd_mv |
1902 | }, |
1903 | { |
3af97463 |
1904 | "open", TRUE, "connect to a host", |
f11233cb |
1905 | " [<user>@]<hostname> [<port>]\n" |
fa3db767 |
1906 | " Establishes an SFTP connection to a given host. Only usable\n" |
1907 | " when you did not already specify a host name on the command\n" |
1908 | " line.\n", |
1909 | sftp_cmd_open |
1910 | }, |
1911 | { |
56542985 |
1912 | "put", TRUE, "upload a file from your local machine to the server", |
9033711a |
1913 | " [ -r ] [ -- ] <filename> [ <remote-filename> ]\n" |
56542985 |
1914 | " Uploads a file to the server and stores it there under\n" |
1915 | " the same name, or under a different one if you supply the\n" |
9033711a |
1916 | " argument <remote-filename>.\n" |
1917 | " If -r specified, recursively store a directory.\n", |
56542985 |
1918 | sftp_cmd_put |
1919 | }, |
1920 | { |
3af97463 |
1921 | "pwd", TRUE, "print your remote working directory", |
4f2b387f |
1922 | "\n" |
1923 | " Print the current remote working directory for your SFTP session.\n", |
1924 | sftp_cmd_pwd |
1925 | }, |
1926 | { |
3af97463 |
1927 | "quit", TRUE, "bye", NULL, |
bf5240cd |
1928 | sftp_cmd_quit |
1929 | }, |
1930 | { |
3af97463 |
1931 | "reget", TRUE, "continue downloading a file", |
9033711a |
1932 | " [ -r ] [ -- ] <filename> [ <local-filename> ]\n" |
bf5240cd |
1933 | " Works exactly like the \"get\" command, but the local file\n" |
1934 | " must already exist. The download will begin at the end of the\n" |
9033711a |
1935 | " file. This is for resuming a download that was interrupted.\n" |
1936 | " If -r specified, resume interrupted \"get -r\".\n", |
bf5240cd |
1937 | sftp_cmd_reget |
1938 | }, |
1939 | { |
3af97463 |
1940 | "ren", TRUE, "mv", NULL, |
bf5240cd |
1941 | sftp_cmd_mv |
1942 | }, |
1943 | { |
3af97463 |
1944 | "rename", FALSE, "mv", NULL, |
bf5240cd |
1945 | sftp_cmd_mv |
1946 | }, |
1947 | { |
3af97463 |
1948 | "reput", TRUE, "continue uploading a file", |
9033711a |
1949 | " [ -r ] [ -- ] <filename> [ <remote-filename> ]\n" |
bf5240cd |
1950 | " Works exactly like the \"put\" command, but the remote file\n" |
1951 | " must already exist. The upload will begin at the end of the\n" |
9033711a |
1952 | " file. This is for resuming an upload that was interrupted.\n" |
1953 | " If -r specified, resume interrupted \"put -r\".\n", |
bf5240cd |
1954 | sftp_cmd_reput |
1955 | }, |
1956 | { |
3af97463 |
1957 | "rm", TRUE, "del", NULL, |
bf5240cd |
1958 | sftp_cmd_rm |
1959 | }, |
1960 | { |
3af97463 |
1961 | "rmdir", TRUE, "remove a directory on the remote server", |
bf5240cd |
1962 | " <directory-name>\n" |
1963 | " Removes the directory with the given name on the server.\n" |
1964 | " The directory will not be removed unless it is empty.\n", |
1965 | sftp_cmd_rmdir |
1966 | } |
1967 | }; |
1968 | |
1969 | const struct sftp_cmd_lookup *lookup_command(char *name) |
1970 | { |
1971 | int i, j, k, cmp; |
1972 | |
1973 | i = -1; |
1974 | j = sizeof(sftp_lookup) / sizeof(*sftp_lookup); |
1975 | while (j - i > 1) { |
1976 | k = (j + i) / 2; |
1977 | cmp = strcmp(name, sftp_lookup[k].name); |
1978 | if (cmp < 0) |
1979 | j = k; |
1980 | else if (cmp > 0) |
1981 | i = k; |
1982 | else { |
1983 | return &sftp_lookup[k]; |
1984 | } |
1985 | } |
1986 | return NULL; |
1987 | } |
1988 | |
1989 | static int sftp_cmd_help(struct sftp_command *cmd) |
1990 | { |
1991 | int i; |
1992 | if (cmd->nwords == 1) { |
1993 | /* |
1994 | * Give short help on each command. |
1995 | */ |
1996 | int maxlen; |
1997 | maxlen = 0; |
1998 | for (i = 0; i < sizeof(sftp_lookup) / sizeof(*sftp_lookup); i++) { |
3af97463 |
1999 | int len; |
2000 | if (!sftp_lookup[i].listed) |
2001 | continue; |
2002 | len = strlen(sftp_lookup[i].name); |
bf5240cd |
2003 | if (maxlen < len) |
2004 | maxlen = len; |
2005 | } |
2006 | for (i = 0; i < sizeof(sftp_lookup) / sizeof(*sftp_lookup); i++) { |
2007 | const struct sftp_cmd_lookup *lookup; |
3af97463 |
2008 | if (!sftp_lookup[i].listed) |
2009 | continue; |
bf5240cd |
2010 | lookup = &sftp_lookup[i]; |
2011 | printf("%-*s", maxlen+2, lookup->name); |
2012 | if (lookup->longhelp == NULL) |
2013 | lookup = lookup_command(lookup->shorthelp); |
2014 | printf("%s\n", lookup->shorthelp); |
2015 | } |
2016 | } else { |
2017 | /* |
2018 | * Give long help on specific commands. |
2019 | */ |
2020 | for (i = 1; i < cmd->nwords; i++) { |
2021 | const struct sftp_cmd_lookup *lookup; |
2022 | lookup = lookup_command(cmd->words[i]); |
2023 | if (!lookup) { |
2024 | printf("help: %s: command not found\n", cmd->words[i]); |
2025 | } else { |
2026 | printf("%s", lookup->name); |
2027 | if (lookup->longhelp == NULL) |
2028 | lookup = lookup_command(lookup->shorthelp); |
2029 | printf("%s", lookup->longhelp); |
2030 | } |
2031 | } |
2032 | } |
df49ff19 |
2033 | return 1; |
bf5240cd |
2034 | } |
4c7f0d61 |
2035 | |
2036 | /* ---------------------------------------------------------------------- |
2037 | * Command line reading and parsing. |
2038 | */ |
9954aaa3 |
2039 | struct sftp_command *sftp_getcmd(FILE *fp, int mode, int modeflags) |
32874aea |
2040 | { |
4c7f0d61 |
2041 | char *line; |
4c7f0d61 |
2042 | struct sftp_command *cmd; |
2043 | char *p, *q, *r; |
2044 | int quoting; |
2045 | |
3d88e64d |
2046 | cmd = snew(struct sftp_command); |
4c7f0d61 |
2047 | cmd->words = NULL; |
2048 | cmd->nwords = 0; |
2049 | cmd->wordssize = 0; |
2050 | |
2051 | line = NULL; |
39934deb |
2052 | |
2053 | if (fp) { |
2054 | if (modeflags & 1) |
2055 | printf("psftp> "); |
2056 | line = fgetline(fp); |
2057 | } else { |
65857773 |
2058 | line = ssh_sftp_get_cmdline("psftp> ", back == NULL); |
4c7f0d61 |
2059 | } |
39934deb |
2060 | |
2061 | if (!line || !*line) { |
2062 | cmd->obey = sftp_cmd_quit; |
2063 | if ((mode == 0) || (modeflags & 1)) |
2064 | printf("quit\n"); |
2065 | return cmd; /* eof */ |
2066 | } |
2067 | |
2068 | line[strcspn(line, "\r\n")] = '\0'; |
2069 | |
df49ff19 |
2070 | if (modeflags & 1) { |
2071 | printf("%s\n", line); |
2072 | } |
4c7f0d61 |
2073 | |
4c7f0d61 |
2074 | p = line; |
3af97463 |
2075 | while (*p && (*p == ' ' || *p == '\t')) |
2076 | p++; |
2077 | |
2078 | if (*p == '!') { |
2079 | /* |
2080 | * Special case: the ! command. This is always parsed as |
2081 | * exactly two words: one containing the !, and the second |
2082 | * containing everything else on the line. |
2083 | */ |
2084 | cmd->nwords = cmd->wordssize = 2; |
3d88e64d |
2085 | cmd->words = sresize(cmd->words, cmd->wordssize, char *); |
679539d7 |
2086 | cmd->words[0] = dupstr("!"); |
2087 | cmd->words[1] = dupstr(p+1); |
3af97463 |
2088 | } else { |
2089 | |
2090 | /* |
2091 | * Parse the command line into words. The syntax is: |
2092 | * - double quotes are removed, but cause spaces within to be |
2093 | * treated as non-separating. |
2094 | * - a double-doublequote pair is a literal double quote, inside |
2095 | * _or_ outside quotes. Like this: |
2096 | * |
2097 | * firstword "second word" "this has ""quotes"" in" and""this"" |
2098 | * |
2099 | * becomes |
2100 | * |
2101 | * >firstword< |
2102 | * >second word< |
2103 | * >this has "quotes" in< |
2104 | * >and"this"< |
2105 | */ |
4c7f0d61 |
2106 | while (*p) { |
3af97463 |
2107 | /* skip whitespace */ |
2108 | while (*p && (*p == ' ' || *p == '\t')) |
2109 | p++; |
2110 | /* mark start of word */ |
2111 | q = r = p; /* q sits at start, r writes word */ |
2112 | quoting = 0; |
2113 | while (*p) { |
2114 | if (!quoting && (*p == ' ' || *p == '\t')) |
2115 | break; /* reached end of word */ |
2116 | else if (*p == '"' && p[1] == '"') |
2117 | p += 2, *r++ = '"'; /* a literal quote */ |
2118 | else if (*p == '"') |
2119 | p++, quoting = !quoting; |
2120 | else |
2121 | *r++ = *p++; |
2122 | } |
2123 | if (*p) |
2124 | p++; /* skip over the whitespace */ |
2125 | *r = '\0'; |
2126 | if (cmd->nwords >= cmd->wordssize) { |
2127 | cmd->wordssize = cmd->nwords + 16; |
3d88e64d |
2128 | cmd->words = sresize(cmd->words, cmd->wordssize, char *); |
3af97463 |
2129 | } |
679539d7 |
2130 | cmd->words[cmd->nwords++] = dupstr(q); |
4c7f0d61 |
2131 | } |
4c7f0d61 |
2132 | } |
2133 | |
39934deb |
2134 | sfree(line); |
2135 | |
4c7f0d61 |
2136 | /* |
2137 | * Now parse the first word and assign a function. |
2138 | */ |
2139 | |
2140 | if (cmd->nwords == 0) |
2141 | cmd->obey = sftp_cmd_null; |
2142 | else { |
bf5240cd |
2143 | const struct sftp_cmd_lookup *lookup; |
2144 | lookup = lookup_command(cmd->words[0]); |
2145 | if (!lookup) |
2146 | cmd->obey = sftp_cmd_unknown; |
2147 | else |
2148 | cmd->obey = lookup->obey; |
4c7f0d61 |
2149 | } |
2150 | |
2151 | return cmd; |
2152 | } |
2153 | |
774204f5 |
2154 | static int do_sftp_init(void) |
32874aea |
2155 | { |
1bc24185 |
2156 | struct sftp_packet *pktin; |
2157 | struct sftp_request *req, *rreq; |
2158 | |
4c7f0d61 |
2159 | /* |
2160 | * Do protocol initialisation. |
2161 | */ |
2162 | if (!fxp_init()) { |
2163 | fprintf(stderr, |
32874aea |
2164 | "Fatal: unable to initialise SFTP: %s\n", fxp_error()); |
774204f5 |
2165 | return 1; /* failure */ |
4c7f0d61 |
2166 | } |
2167 | |
2168 | /* |
2169 | * Find out where our home directory is. |
2170 | */ |
1bc24185 |
2171 | sftp_register(req = fxp_realpath_send(".")); |
2172 | rreq = sftp_find_request(pktin = sftp_recv()); |
2173 | assert(rreq == req); |
7b7de4f4 |
2174 | homedir = fxp_realpath_recv(pktin, rreq); |
1bc24185 |
2175 | |
4c7f0d61 |
2176 | if (!homedir) { |
2177 | fprintf(stderr, |
2178 | "Warning: failed to resolve home directory: %s\n", |
2179 | fxp_error()); |
2180 | homedir = dupstr("."); |
2181 | } else { |
2182 | printf("Remote working directory is %s\n", homedir); |
2183 | } |
2184 | pwd = dupstr(homedir); |
774204f5 |
2185 | return 0; |
fa3db767 |
2186 | } |
2187 | |
679539d7 |
2188 | void do_sftp_cleanup() |
2189 | { |
2190 | char ch; |
f11233cb |
2191 | if (back) { |
2192 | back->special(backhandle, TS_EOF); |
2193 | sftp_recvdata(&ch, 1); |
2194 | back->free(backhandle); |
2195 | sftp_cleanup_request(); |
65857773 |
2196 | back = NULL; |
2197 | backhandle = NULL; |
f11233cb |
2198 | } |
679539d7 |
2199 | if (pwd) { |
2200 | sfree(pwd); |
2201 | pwd = NULL; |
2202 | } |
2203 | if (homedir) { |
2204 | sfree(homedir); |
2205 | homedir = NULL; |
2206 | } |
2207 | } |
2208 | |
fa3db767 |
2209 | void do_sftp(int mode, int modeflags, char *batchfile) |
2210 | { |
2211 | FILE *fp; |
df49ff19 |
2212 | int ret; |
4c7f0d61 |
2213 | |
9954aaa3 |
2214 | /* |
2215 | * Batch mode? |
4c7f0d61 |
2216 | */ |
9954aaa3 |
2217 | if (mode == 0) { |
2218 | |
2219 | /* ------------------------------------------------------------------ |
2220 | * Now we're ready to do Real Stuff. |
2221 | */ |
2222 | while (1) { |
df49ff19 |
2223 | struct sftp_command *cmd; |
39934deb |
2224 | cmd = sftp_getcmd(NULL, 0, 0); |
df49ff19 |
2225 | if (!cmd) |
2226 | break; |
679539d7 |
2227 | ret = cmd->obey(cmd); |
2228 | if (cmd->words) { |
2229 | int i; |
2230 | for(i = 0; i < cmd->nwords; i++) |
2231 | sfree(cmd->words[i]); |
2232 | sfree(cmd->words); |
2233 | } |
2234 | sfree(cmd); |
2235 | if (ret < 0) |
df49ff19 |
2236 | break; |
bf5240cd |
2237 | } |
9954aaa3 |
2238 | } else { |
2239 | fp = fopen(batchfile, "r"); |
2240 | if (!fp) { |
bf5240cd |
2241 | printf("Fatal: unable to open %s\n", batchfile); |
2242 | return; |
9954aaa3 |
2243 | } |
2244 | while (1) { |
bf5240cd |
2245 | struct sftp_command *cmd; |
2246 | cmd = sftp_getcmd(fp, mode, modeflags); |
2247 | if (!cmd) |
2248 | break; |
df49ff19 |
2249 | ret = cmd->obey(cmd); |
2250 | if (ret < 0) |
bf5240cd |
2251 | break; |
df49ff19 |
2252 | if (ret == 0) { |
bf5240cd |
2253 | if (!(modeflags & 2)) |
9954aaa3 |
2254 | break; |
bf5240cd |
2255 | } |
9954aaa3 |
2256 | } |
bf5240cd |
2257 | fclose(fp); |
9954aaa3 |
2258 | |
4c7f0d61 |
2259 | } |
4a8fc3c4 |
2260 | } |
4c7f0d61 |
2261 | |
4a8fc3c4 |
2262 | /* ---------------------------------------------------------------------- |
2263 | * Dirty bits: integration with PuTTY. |
2264 | */ |
2265 | |
2266 | static int verbose = 0; |
2267 | |
7bedb13c |
2268 | /* |
4a8fc3c4 |
2269 | * Print an error message and perform a fatal exit. |
2270 | */ |
2271 | void fatalbox(char *fmt, ...) |
2272 | { |
57356d63 |
2273 | char *str, *str2; |
4a8fc3c4 |
2274 | va_list ap; |
2275 | va_start(ap, fmt); |
57356d63 |
2276 | str = dupvprintf(fmt, ap); |
2277 | str2 = dupcat("Fatal: ", str, "\n", NULL); |
2278 | sfree(str); |
4a8fc3c4 |
2279 | va_end(ap); |
57356d63 |
2280 | fputs(str2, stderr); |
2281 | sfree(str2); |
4a8fc3c4 |
2282 | |
93b581bd |
2283 | cleanup_exit(1); |
4a8fc3c4 |
2284 | } |
1709795f |
2285 | void modalfatalbox(char *fmt, ...) |
2286 | { |
57356d63 |
2287 | char *str, *str2; |
1709795f |
2288 | va_list ap; |
2289 | va_start(ap, fmt); |
57356d63 |
2290 | str = dupvprintf(fmt, ap); |
2291 | str2 = dupcat("Fatal: ", str, "\n", NULL); |
2292 | sfree(str); |
1709795f |
2293 | va_end(ap); |
57356d63 |
2294 | fputs(str2, stderr); |
2295 | sfree(str2); |
1709795f |
2296 | |
2297 | cleanup_exit(1); |
2298 | } |
a8327734 |
2299 | void connection_fatal(void *frontend, char *fmt, ...) |
4a8fc3c4 |
2300 | { |
57356d63 |
2301 | char *str, *str2; |
4a8fc3c4 |
2302 | va_list ap; |
2303 | va_start(ap, fmt); |
57356d63 |
2304 | str = dupvprintf(fmt, ap); |
2305 | str2 = dupcat("Fatal: ", str, "\n", NULL); |
2306 | sfree(str); |
4a8fc3c4 |
2307 | va_end(ap); |
57356d63 |
2308 | fputs(str2, stderr); |
2309 | sfree(str2); |
4a8fc3c4 |
2310 | |
93b581bd |
2311 | cleanup_exit(1); |
4a8fc3c4 |
2312 | } |
2313 | |
6b78788a |
2314 | void ldisc_send(void *handle, char *buf, int len, int interactive) |
32874aea |
2315 | { |
4a8fc3c4 |
2316 | /* |
2317 | * This is only here because of the calls to ldisc_send(NULL, |
2318 | * 0) in ssh.c. Nothing in PSFTP actually needs to use the |
2319 | * ldisc as an ldisc. So if we get called with any real data, I |
2320 | * want to know about it. |
4c7f0d61 |
2321 | */ |
4a8fc3c4 |
2322 | assert(len == 0); |
2323 | } |
2324 | |
2325 | /* |
c44bf5bd |
2326 | * In psftp, all agent requests should be synchronous, so this is a |
2327 | * never-called stub. |
2328 | */ |
2329 | void agent_schedule_callback(void (*callback)(void *, void *, int), |
2330 | void *callback_ctx, void *data, int len) |
2331 | { |
2332 | assert(!"We shouldn't be here"); |
2333 | } |
2334 | |
2335 | /* |
4a8fc3c4 |
2336 | * Receive a block of data from the SSH link. Block until all data |
2337 | * is available. |
2338 | * |
2339 | * To do this, we repeatedly call the SSH protocol module, with our |
2340 | * own trap in from_backend() to catch the data that comes back. We |
2341 | * do this until we have enough data. |
2342 | */ |
2343 | |
32874aea |
2344 | static unsigned char *outptr; /* where to put the data */ |
2345 | static unsigned outlen; /* how much data required */ |
4a8fc3c4 |
2346 | static unsigned char *pending = NULL; /* any spare data */ |
32874aea |
2347 | static unsigned pendlen = 0, pendsize = 0; /* length and phys. size of buffer */ |
9fab77dc |
2348 | int from_backend(void *frontend, int is_stderr, const char *data, int datalen) |
32874aea |
2349 | { |
2350 | unsigned char *p = (unsigned char *) data; |
2351 | unsigned len = (unsigned) datalen; |
4a8fc3c4 |
2352 | |
2353 | /* |
2354 | * stderr data is just spouted to local stderr and otherwise |
2355 | * ignored. |
2356 | */ |
2357 | if (is_stderr) { |
bfa5400d |
2358 | if (len > 0) |
2359 | fwrite(data, 1, len, stderr); |
5471d09a |
2360 | return 0; |
4a8fc3c4 |
2361 | } |
2362 | |
2363 | /* |
2364 | * If this is before the real session begins, just return. |
2365 | */ |
2366 | if (!outptr) |
5471d09a |
2367 | return 0; |
4a8fc3c4 |
2368 | |
bfa5400d |
2369 | if ((outlen > 0) && (len > 0)) { |
32874aea |
2370 | unsigned used = outlen; |
2371 | if (used > len) |
2372 | used = len; |
2373 | memcpy(outptr, p, used); |
2374 | outptr += used; |
2375 | outlen -= used; |
2376 | p += used; |
2377 | len -= used; |
4a8fc3c4 |
2378 | } |
2379 | |
2380 | if (len > 0) { |
32874aea |
2381 | if (pendsize < pendlen + len) { |
2382 | pendsize = pendlen + len + 4096; |
3d88e64d |
2383 | pending = sresize(pending, pendsize, unsigned char); |
32874aea |
2384 | } |
2385 | memcpy(pending + pendlen, p, len); |
2386 | pendlen += len; |
4a8fc3c4 |
2387 | } |
5471d09a |
2388 | |
2389 | return 0; |
4a8fc3c4 |
2390 | } |
32874aea |
2391 | int sftp_recvdata(char *buf, int len) |
2392 | { |
2393 | outptr = (unsigned char *) buf; |
4a8fc3c4 |
2394 | outlen = len; |
2395 | |
2396 | /* |
2397 | * See if the pending-input block contains some of what we |
2398 | * need. |
2399 | */ |
2400 | if (pendlen > 0) { |
32874aea |
2401 | unsigned pendused = pendlen; |
2402 | if (pendused > outlen) |
2403 | pendused = outlen; |
4a8fc3c4 |
2404 | memcpy(outptr, pending, pendused); |
32874aea |
2405 | memmove(pending, pending + pendused, pendlen - pendused); |
4a8fc3c4 |
2406 | outptr += pendused; |
2407 | outlen -= pendused; |
32874aea |
2408 | pendlen -= pendused; |
2409 | if (pendlen == 0) { |
2410 | pendsize = 0; |
2411 | sfree(pending); |
2412 | pending = NULL; |
2413 | } |
2414 | if (outlen == 0) |
2415 | return 1; |
4a8fc3c4 |
2416 | } |
2417 | |
2418 | while (outlen > 0) { |
d6cc41e6 |
2419 | if (ssh_sftp_loop_iteration() < 0) |
32874aea |
2420 | return 0; /* doom */ |
4a8fc3c4 |
2421 | } |
2422 | |
2423 | return 1; |
2424 | } |
32874aea |
2425 | int sftp_senddata(char *buf, int len) |
2426 | { |
776792d7 |
2427 | back->send(backhandle, buf, len); |
4a8fc3c4 |
2428 | return 1; |
2429 | } |
2430 | |
2431 | /* |
4a8fc3c4 |
2432 | * Short description of parameters. |
2433 | */ |
2434 | static void usage(void) |
2435 | { |
2436 | printf("PuTTY Secure File Transfer (SFTP) client\n"); |
2437 | printf("%s\n", ver); |
90767715 |
2438 | printf("Usage: psftp [options] [user@]host\n"); |
4a8fc3c4 |
2439 | printf("Options:\n"); |
9954aaa3 |
2440 | printf(" -b file use specified batchfile\n"); |
2441 | printf(" -bc output batchfile commands\n"); |
2442 | printf(" -be don't stop batchfile processing if errors\n"); |
4a8fc3c4 |
2443 | printf(" -v show verbose messages\n"); |
e2a197cf |
2444 | printf(" -load sessname Load settings from saved session\n"); |
2445 | printf(" -l user connect with specified username\n"); |
4a8fc3c4 |
2446 | printf(" -P port connect to specified port\n"); |
2447 | printf(" -pw passw login with specified password\n"); |
e2a197cf |
2448 | printf(" -1 -2 force use of particular SSH protocol version\n"); |
05581745 |
2449 | printf(" -4 -6 force use of IPv4 or IPv6\n"); |
e2a197cf |
2450 | printf(" -C enable compression\n"); |
2451 | printf(" -i key private key file for authentication\n"); |
2452 | printf(" -batch disable all interactive prompts\n"); |
dc108ebc |
2453 | printf(" -V print version information\n"); |
93b581bd |
2454 | cleanup_exit(1); |
4a8fc3c4 |
2455 | } |
2456 | |
dc108ebc |
2457 | static void version(void) |
2458 | { |
2459 | printf("psftp: %s\n", ver); |
2460 | cleanup_exit(1); |
2461 | } |
2462 | |
4a8fc3c4 |
2463 | /* |
fa3db767 |
2464 | * Connect to a host. |
4a8fc3c4 |
2465 | */ |
fa3db767 |
2466 | static int psftp_connect(char *userhost, char *user, int portnumber) |
4a8fc3c4 |
2467 | { |
fa3db767 |
2468 | char *host, *realhost; |
cbe2d68f |
2469 | const char *err; |
b51259f6 |
2470 | void *logctx; |
4a8fc3c4 |
2471 | |
2472 | /* Separate host and username */ |
2473 | host = userhost; |
2474 | host = strrchr(host, '@'); |
2475 | if (host == NULL) { |
2476 | host = userhost; |
2477 | } else { |
2478 | *host++ = '\0'; |
2479 | if (user) { |
32874aea |
2480 | printf("psftp: multiple usernames specified; using \"%s\"\n", |
2481 | user); |
4a8fc3c4 |
2482 | } else |
2483 | user = userhost; |
2484 | } |
2485 | |
18e62ad8 |
2486 | /* |
2487 | * If we haven't loaded session details already (e.g., from -load), |
2488 | * try looking for a session called "host". |
2489 | */ |
2490 | if (!loaded_session) { |
2491 | /* Try to load settings for `host' into a temporary config */ |
2492 | Config cfg2; |
2493 | cfg2.host[0] = '\0'; |
2494 | do_defaults(host, &cfg2); |
2495 | if (cfg2.host[0] != '\0') { |
2496 | /* Settings present and include hostname */ |
2497 | /* Re-load data into the real config. */ |
2498 | do_defaults(host, &cfg); |
2499 | } else { |
2500 | /* Session doesn't exist or mention a hostname. */ |
2501 | /* Use `host' as a bare hostname. */ |
2502 | strncpy(cfg.host, host, sizeof(cfg.host) - 1); |
2503 | cfg.host[sizeof(cfg.host) - 1] = '\0'; |
2504 | } |
2505 | } else { |
2506 | /* Patch in hostname `host' to session details. */ |
32874aea |
2507 | strncpy(cfg.host, host, sizeof(cfg.host) - 1); |
2508 | cfg.host[sizeof(cfg.host) - 1] = '\0'; |
f133db8e |
2509 | } |
2510 | |
2511 | /* |
2512 | * Force use of SSH. (If they got the protocol wrong we assume the |
2513 | * port is useless too.) |
2514 | */ |
2515 | if (cfg.protocol != PROT_SSH) { |
2516 | cfg.protocol = PROT_SSH; |
2517 | cfg.port = 22; |
4a8fc3c4 |
2518 | } |
2519 | |
449925a6 |
2520 | /* |
4123fa9a |
2521 | * If saved session / Default Settings says SSH-1 (`1 only' or `1'), |
2522 | * then change it to SSH-2, on the grounds that that's more likely to |
2523 | * work for SFTP. (Can be overridden with `-1' option.) |
2524 | * But if it says `2 only' or `2', respect which. |
2525 | */ |
2526 | if (cfg.sshprot != 2 && cfg.sshprot != 3) |
2527 | cfg.sshprot = 2; |
2528 | |
2529 | /* |
c0a81592 |
2530 | * Enact command-line overrides. |
2531 | */ |
5555d393 |
2532 | cmdline_run_saved(&cfg); |
c0a81592 |
2533 | |
2534 | /* |
449925a6 |
2535 | * Trim leading whitespace off the hostname if it's there. |
2536 | */ |
2537 | { |
2538 | int space = strspn(cfg.host, " \t"); |
2539 | memmove(cfg.host, cfg.host+space, 1+strlen(cfg.host)-space); |
2540 | } |
2541 | |
2542 | /* See if host is of the form user@host */ |
2543 | if (cfg.host[0] != '\0') { |
5dd103a8 |
2544 | char *atsign = strrchr(cfg.host, '@'); |
449925a6 |
2545 | /* Make sure we're not overflowing the user field */ |
2546 | if (atsign) { |
2547 | if (atsign - cfg.host < sizeof cfg.username) { |
2548 | strncpy(cfg.username, cfg.host, atsign - cfg.host); |
2549 | cfg.username[atsign - cfg.host] = '\0'; |
2550 | } |
2551 | memmove(cfg.host, atsign + 1, 1 + strlen(atsign + 1)); |
2552 | } |
2553 | } |
2554 | |
2555 | /* |
2556 | * Trim a colon suffix off the hostname if it's there. |
2557 | */ |
2558 | cfg.host[strcspn(cfg.host, ":")] = '\0'; |
2559 | |
cae0c023 |
2560 | /* |
2561 | * Remove any remaining whitespace from the hostname. |
2562 | */ |
2563 | { |
2564 | int p1 = 0, p2 = 0; |
2565 | while (cfg.host[p2] != '\0') { |
2566 | if (cfg.host[p2] != ' ' && cfg.host[p2] != '\t') { |
2567 | cfg.host[p1] = cfg.host[p2]; |
2568 | p1++; |
2569 | } |
2570 | p2++; |
2571 | } |
2572 | cfg.host[p1] = '\0'; |
2573 | } |
2574 | |
4a8fc3c4 |
2575 | /* Set username */ |
2576 | if (user != NULL && user[0] != '\0') { |
32874aea |
2577 | strncpy(cfg.username, user, sizeof(cfg.username) - 1); |
2578 | cfg.username[sizeof(cfg.username) - 1] = '\0'; |
4a8fc3c4 |
2579 | } |
2580 | if (!cfg.username[0]) { |
b5af97b3 |
2581 | if (!console_get_line("login as: ", |
2582 | cfg.username, sizeof(cfg.username), FALSE)) { |
2583 | fprintf(stderr, "psftp: no username, aborting\n"); |
93b581bd |
2584 | cleanup_exit(1); |
4a8fc3c4 |
2585 | } else { |
2586 | int len = strlen(cfg.username); |
32874aea |
2587 | if (cfg.username[len - 1] == '\n') |
2588 | cfg.username[len - 1] = '\0'; |
4a8fc3c4 |
2589 | } |
2590 | } |
2591 | |
4a8fc3c4 |
2592 | if (portnumber) |
2593 | cfg.port = portnumber; |
2594 | |
d27b4a18 |
2595 | /* |
2596 | * Disable scary things which shouldn't be enabled for simple |
2597 | * things like SCP and SFTP: agent forwarding, port forwarding, |
2598 | * X forwarding. |
2599 | */ |
2600 | cfg.x11_forward = 0; |
2601 | cfg.agentfwd = 0; |
2602 | cfg.portfwd[0] = cfg.portfwd[1] = '\0'; |
2603 | |
bebf22d0 |
2604 | /* Set up subsystem name. */ |
4a8fc3c4 |
2605 | strcpy(cfg.remote_cmd, "sftp"); |
2606 | cfg.ssh_subsys = TRUE; |
2607 | cfg.nopty = TRUE; |
2608 | |
bebf22d0 |
2609 | /* |
2610 | * Set up fallback option, for SSH1 servers or servers with the |
2611 | * sftp subsystem not enabled but the server binary installed |
2612 | * in the usual place. We only support fallback on Unix |
248c0c5a |
2613 | * systems, and we use a kludgy piece of shellery which should |
2614 | * try to find sftp-server in various places (the obvious |
2615 | * systemwide spots /usr/lib and /usr/local/lib, and then the |
2616 | * user's PATH) and finally give up. |
bebf22d0 |
2617 | * |
248c0c5a |
2618 | * test -x /usr/lib/sftp-server && exec /usr/lib/sftp-server |
2619 | * test -x /usr/local/lib/sftp-server && exec /usr/local/lib/sftp-server |
2620 | * exec sftp-server |
bebf22d0 |
2621 | * |
2622 | * the idea being that this will attempt to use either of the |
2623 | * obvious pathnames and then give up, and when it does give up |
2624 | * it will print the preferred pathname in the error messages. |
2625 | */ |
2626 | cfg.remote_cmd_ptr2 = |
248c0c5a |
2627 | "test -x /usr/lib/sftp-server && exec /usr/lib/sftp-server\n" |
2628 | "test -x /usr/local/lib/sftp-server && exec /usr/local/lib/sftp-server\n" |
2629 | "exec sftp-server"; |
bebf22d0 |
2630 | cfg.ssh_subsys2 = FALSE; |
2631 | |
4a8fc3c4 |
2632 | back = &ssh_backend; |
2633 | |
79bf227b |
2634 | err = back->init(NULL, &backhandle, &cfg, cfg.host, cfg.port, &realhost, |
2635 | 0, cfg.tcp_keepalives); |
4a8fc3c4 |
2636 | if (err != NULL) { |
fa3db767 |
2637 | fprintf(stderr, "ssh_init: %s\n", err); |
4a8fc3c4 |
2638 | return 1; |
2639 | } |
c229ef97 |
2640 | logctx = log_init(NULL, &cfg); |
a8327734 |
2641 | back->provide_logctx(backhandle, logctx); |
d3fef4a5 |
2642 | console_provide_logctx(logctx); |
d6cc41e6 |
2643 | while (!back->sendok(backhandle)) { |
2644 | if (ssh_sftp_loop_iteration() < 0) { |
2645 | fprintf(stderr, "ssh_init: error during SSH connection setup\n"); |
2646 | return 1; |
2647 | } |
2648 | } |
4a8fc3c4 |
2649 | if (verbose && realhost != NULL) |
2650 | printf("Connected to %s\n", realhost); |
679539d7 |
2651 | if (realhost != NULL) |
2652 | sfree(realhost); |
fa3db767 |
2653 | return 0; |
2654 | } |
2655 | |
c0a81592 |
2656 | void cmdline_error(char *p, ...) |
2657 | { |
2658 | va_list ap; |
86256dc6 |
2659 | fprintf(stderr, "psftp: "); |
c0a81592 |
2660 | va_start(ap, p); |
2661 | vfprintf(stderr, p, ap); |
2662 | va_end(ap); |
86256dc6 |
2663 | fprintf(stderr, "\n try typing \"psftp -h\" for help\n"); |
c0a81592 |
2664 | exit(1); |
2665 | } |
2666 | |
fa3db767 |
2667 | /* |
2668 | * Main program. Parse arguments etc. |
2669 | */ |
d6cc41e6 |
2670 | int psftp_main(int argc, char *argv[]) |
fa3db767 |
2671 | { |
2672 | int i; |
2673 | int portnumber = 0; |
2674 | char *userhost, *user; |
2675 | int mode = 0; |
2676 | int modeflags = 0; |
2677 | char *batchfile = NULL; |
86256dc6 |
2678 | int errors = 0; |
fa3db767 |
2679 | |
b51259f6 |
2680 | flags = FLAG_STDERR | FLAG_INTERACTIVE |
2681 | #ifdef FLAG_SYNCAGENT |
2682 | | FLAG_SYNCAGENT |
2683 | #endif |
2684 | ; |
c0a81592 |
2685 | cmdline_tooltype = TOOLTYPE_FILETRANSFER; |
ff2ae367 |
2686 | ssh_get_line = &console_get_line; |
fa3db767 |
2687 | sk_init(); |
2688 | |
2689 | userhost = user = NULL; |
2690 | |
18e62ad8 |
2691 | /* Load Default Settings before doing anything else. */ |
2692 | do_defaults(NULL, &cfg); |
2693 | loaded_session = FALSE; |
2694 | |
86256dc6 |
2695 | errors = 0; |
fa3db767 |
2696 | for (i = 1; i < argc; i++) { |
c0a81592 |
2697 | int ret; |
fa3db767 |
2698 | if (argv[i][0] != '-') { |
c0a81592 |
2699 | if (userhost) |
2700 | usage(); |
2701 | else |
2702 | userhost = dupstr(argv[i]); |
2703 | continue; |
2704 | } |
5555d393 |
2705 | ret = cmdline_process_param(argv[i], i+1<argc?argv[i+1]:NULL, 1, &cfg); |
c0a81592 |
2706 | if (ret == -2) { |
2707 | cmdline_error("option \"%s\" requires an argument", argv[i]); |
2708 | } else if (ret == 2) { |
2709 | i++; /* skip next argument */ |
2710 | } else if (ret == 1) { |
2711 | /* We have our own verbosity in addition to `flags'. */ |
2712 | if (flags & FLAG_VERBOSE) |
2713 | verbose = 1; |
fa3db767 |
2714 | } else if (strcmp(argv[i], "-h") == 0 || |
2715 | strcmp(argv[i], "-?") == 0) { |
2716 | usage(); |
dc108ebc |
2717 | } else if (strcmp(argv[i], "-V") == 0) { |
2718 | version(); |
c0a81592 |
2719 | } else if (strcmp(argv[i], "-batch") == 0) { |
2720 | console_batch_mode = 1; |
fa3db767 |
2721 | } else if (strcmp(argv[i], "-b") == 0 && i + 1 < argc) { |
2722 | mode = 1; |
2723 | batchfile = argv[++i]; |
d13c2ee9 |
2724 | } else if (strcmp(argv[i], "-bc") == 0) { |
fa3db767 |
2725 | modeflags = modeflags | 1; |
d13c2ee9 |
2726 | } else if (strcmp(argv[i], "-be") == 0) { |
fa3db767 |
2727 | modeflags = modeflags | 2; |
2728 | } else if (strcmp(argv[i], "--") == 0) { |
2729 | i++; |
2730 | break; |
2731 | } else { |
86256dc6 |
2732 | cmdline_error("unknown option \"%s\"", argv[i]); |
fa3db767 |
2733 | } |
2734 | } |
2735 | argc -= i; |
2736 | argv += i; |
2737 | back = NULL; |
2738 | |
2739 | /* |
e1bb41d1 |
2740 | * If the loaded session provides a hostname, and a hostname has not |
2741 | * otherwise been specified, pop it in `userhost' so that |
2742 | * `psftp -load sessname' is sufficient to start a session. |
2743 | */ |
2744 | if (!userhost && cfg.host[0] != '\0') { |
2745 | userhost = dupstr(cfg.host); |
2746 | } |
2747 | |
2748 | /* |
fa3db767 |
2749 | * If a user@host string has already been provided, connect to |
2750 | * it now. |
2751 | */ |
2752 | if (userhost) { |
679539d7 |
2753 | int ret; |
2754 | ret = psftp_connect(userhost, user, portnumber); |
2755 | sfree(userhost); |
2756 | if (ret) |
fa3db767 |
2757 | return 1; |
774204f5 |
2758 | if (do_sftp_init()) |
2759 | return 1; |
fa3db767 |
2760 | } else { |
2761 | printf("psftp: no hostname specified; use \"open host.name\"" |
679539d7 |
2762 | " to connect\n"); |
fa3db767 |
2763 | } |
4c7f0d61 |
2764 | |
9954aaa3 |
2765 | do_sftp(mode, modeflags, batchfile); |
4a8fc3c4 |
2766 | |
51470298 |
2767 | if (back != NULL && back->socket(backhandle) != NULL) { |
4a8fc3c4 |
2768 | char ch; |
51470298 |
2769 | back->special(backhandle, TS_EOF); |
4a8fc3c4 |
2770 | sftp_recvdata(&ch, 1); |
2771 | } |
b614ce89 |
2772 | do_sftp_cleanup(); |
4a8fc3c4 |
2773 | random_save_seed(); |
679539d7 |
2774 | cmdline_cleanup(); |
2775 | console_provide_logctx(NULL); |
679539d7 |
2776 | sk_cleanup(); |
4a8fc3c4 |
2777 | |
4c7f0d61 |
2778 | return 0; |
2779 | } |