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