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 | /* |
93e86a8b |
44 | * Determine whether a string is entirely composed of dots. |
45 | */ |
46 | static int is_dots(char *str) |
47 | { |
48 | return str[strspn(str, ".")] == '\0'; |
49 | } |
50 | |
51 | /* |
f9e162aa |
52 | * Attempt to canonify a pathname starting from the pwd. If |
53 | * canonification fails, at least fall back to returning a _valid_ |
54 | * pathname (though it may be ugly, eg /home/simon/../foobar). |
4c7f0d61 |
55 | */ |
32874aea |
56 | char *canonify(char *name) |
57 | { |
f9e162aa |
58 | char *fullname, *canonname; |
1bc24185 |
59 | struct sftp_packet *pktin; |
60 | struct sftp_request *req, *rreq; |
4a8fc3c4 |
61 | |
f9e162aa |
62 | if (name[0] == '/') { |
63 | fullname = dupstr(name); |
64 | } else { |
4a8fc3c4 |
65 | char *slash; |
32874aea |
66 | if (pwd[strlen(pwd) - 1] == '/') |
4a8fc3c4 |
67 | slash = ""; |
68 | else |
69 | slash = "/"; |
70 | fullname = dupcat(pwd, slash, name, NULL); |
f9e162aa |
71 | } |
4a8fc3c4 |
72 | |
1bc24185 |
73 | sftp_register(req = fxp_realpath_send(fullname)); |
74 | rreq = sftp_find_request(pktin = sftp_recv()); |
75 | assert(rreq == req); |
7b7de4f4 |
76 | canonname = fxp_realpath_recv(pktin, rreq); |
4a8fc3c4 |
77 | |
f9e162aa |
78 | if (canonname) { |
79 | sfree(fullname); |
80 | return canonname; |
50d7e054 |
81 | } else { |
32874aea |
82 | /* |
83 | * Attempt number 2. Some FXP_REALPATH implementations |
84 | * (glibc-based ones, in particular) require the _whole_ |
85 | * path to point to something that exists, whereas others |
86 | * (BSD-based) only require all but the last component to |
87 | * exist. So if the first call failed, we should strip off |
88 | * everything from the last slash onwards and try again, |
89 | * then put the final component back on. |
90 | * |
91 | * Special cases: |
92 | * |
93 | * - if the last component is "/." or "/..", then we don't |
94 | * bother trying this because there's no way it can work. |
95 | * |
96 | * - if the thing actually ends with a "/", we remove it |
97 | * before we start. Except if the string is "/" itself |
98 | * (although I can't see why we'd have got here if so, |
99 | * because surely "/" would have worked the first |
100 | * time?), in which case we don't bother. |
101 | * |
102 | * - if there's no slash in the string at all, give up in |
103 | * confusion (we expect at least one because of the way |
104 | * we constructed the string). |
105 | */ |
106 | |
107 | int i; |
108 | char *returnname; |
109 | |
110 | i = strlen(fullname); |
111 | if (i > 2 && fullname[i - 1] == '/') |
112 | fullname[--i] = '\0'; /* strip trailing / unless at pos 0 */ |
113 | while (i > 0 && fullname[--i] != '/'); |
114 | |
115 | /* |
116 | * Give up on special cases. |
117 | */ |
118 | if (fullname[i] != '/' || /* no slash at all */ |
119 | !strcmp(fullname + i, "/.") || /* ends in /. */ |
120 | !strcmp(fullname + i, "/..") || /* ends in /.. */ |
121 | !strcmp(fullname, "/")) { |
122 | return fullname; |
123 | } |
124 | |
125 | /* |
126 | * Now i points at the slash. Deal with the final special |
127 | * case i==0 (ie the whole path was "/nonexistentfile"). |
128 | */ |
129 | fullname[i] = '\0'; /* separate the string */ |
130 | if (i == 0) { |
1bc24185 |
131 | sftp_register(req = fxp_realpath_send("/")); |
32874aea |
132 | } else { |
1bc24185 |
133 | sftp_register(req = fxp_realpath_send(fullname)); |
32874aea |
134 | } |
1bc24185 |
135 | rreq = sftp_find_request(pktin = sftp_recv()); |
136 | assert(rreq == req); |
7b7de4f4 |
137 | canonname = fxp_realpath_recv(pktin, rreq); |
32874aea |
138 | |
139 | if (!canonname) |
140 | return fullname; /* even that failed; give up */ |
141 | |
142 | /* |
143 | * We have a canonical name for all but the last path |
144 | * component. Concatenate the last component and return. |
145 | */ |
146 | returnname = dupcat(canonname, |
147 | canonname[strlen(canonname) - 1] == |
148 | '/' ? "" : "/", fullname + i + 1, NULL); |
149 | sfree(fullname); |
150 | sfree(canonname); |
151 | return returnname; |
50d7e054 |
152 | } |
4c7f0d61 |
153 | } |
154 | |
dcf8495c |
155 | /* |
156 | * Return a pointer to the portion of str that comes after the last |
157 | * slash (or backslash or colon, if `local' is TRUE). |
158 | */ |
159 | static char *stripslashes(char *str, int local) |
160 | { |
161 | char *p; |
162 | |
163 | if (local) { |
164 | p = strchr(str, ':'); |
165 | if (p) str = p+1; |
166 | } |
167 | |
168 | p = strrchr(str, '/'); |
169 | if (p) str = p+1; |
170 | |
171 | if (local) { |
172 | p = strrchr(str, '\\'); |
173 | if (p) str = p+1; |
174 | } |
175 | |
176 | return str; |
177 | } |
178 | |
4c7f0d61 |
179 | /* |
93e86a8b |
180 | * qsort comparison routine for fxp_name structures. Sorts by real |
181 | * file name. |
4c7f0d61 |
182 | */ |
93e86a8b |
183 | static int sftp_name_compare(const void *av, const void *bv) |
32874aea |
184 | { |
7d2c1789 |
185 | const struct fxp_name *const *a = (const struct fxp_name *const *) av; |
186 | const struct fxp_name *const *b = (const struct fxp_name *const *) bv; |
187 | return strcmp((*a)->filename, (*b)->filename); |
4c7f0d61 |
188 | } |
4c7f0d61 |
189 | |
190 | /* |
93e86a8b |
191 | * Likewise, but for a bare char *. |
4f2b387f |
192 | */ |
93e86a8b |
193 | static int bare_name_compare(const void *av, const void *bv) |
4f2b387f |
194 | { |
93e86a8b |
195 | const char **a = (const char **) av; |
196 | const char **b = (const char **) bv; |
197 | return strcmp(*a, *b); |
4f2b387f |
198 | } |
199 | |
93e86a8b |
200 | /* ---------------------------------------------------------------------- |
201 | * The meat of the `get' and `put' commands. |
4c7f0d61 |
202 | */ |
9c77ddf6 |
203 | int sftp_get_file(char *fname, char *outfname, int recurse, int restart, |
204 | char *wildcard) |
32874aea |
205 | { |
4c7f0d61 |
206 | struct fxp_handle *fh; |
1bc24185 |
207 | struct sftp_packet *pktin; |
208 | struct sftp_request *req, *rreq; |
c606c42d |
209 | struct fxp_xfer *xfer; |
4c7f0d61 |
210 | uint64 offset; |
211 | FILE *fp; |
df49ff19 |
212 | int ret; |
4c7f0d61 |
213 | |
93e86a8b |
214 | /* |
215 | * In recursive mode, see if we're dealing with a directory. |
216 | * (If we're not in recursive mode, we need not even check: the |
217 | * subsequent FXP_OPEN will return a usable error message.) |
218 | */ |
9c77ddf6 |
219 | if (wildcard || recurse) { |
93e86a8b |
220 | struct fxp_attrs attrs; |
221 | int result; |
fa3db767 |
222 | |
9c77ddf6 |
223 | if (!wildcard) { |
224 | sftp_register(req = fxp_stat_send(fname)); |
225 | rreq = sftp_find_request(pktin = sftp_recv()); |
226 | assert(rreq == req); |
227 | result = fxp_stat_recv(pktin, rreq, &attrs); |
228 | } else |
229 | result = 0; /* placate optimisers */ |
230 | |
231 | if (wildcard || |
232 | (result && |
233 | (attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) && |
234 | (attrs.permissions & 0040000))) { |
93e86a8b |
235 | |
236 | struct fxp_handle *dirhandle; |
237 | int nnames, namesize; |
238 | struct fxp_name **ournames; |
239 | struct fxp_names *names; |
240 | int i; |
241 | |
242 | /* |
243 | * First, attempt to create the destination directory, |
9c77ddf6 |
244 | * unless it already exists (or this is a wildcard |
245 | * run). |
93e86a8b |
246 | */ |
9c77ddf6 |
247 | if (!wildcard && |
248 | file_type(outfname) != FILE_TYPE_DIRECTORY && |
93e86a8b |
249 | !create_directory(outfname)) { |
250 | printf("%s: Cannot create directory\n", outfname); |
251 | return 0; |
252 | } |
4c7f0d61 |
253 | |
93e86a8b |
254 | /* |
255 | * Now get the list of filenames in the remote |
256 | * directory. |
257 | */ |
258 | sftp_register(req = fxp_opendir_send(fname)); |
259 | rreq = sftp_find_request(pktin = sftp_recv()); |
260 | assert(rreq == req); |
261 | dirhandle = fxp_opendir_recv(pktin, rreq); |
262 | |
263 | if (!dirhandle) { |
264 | printf("%s: unable to open directory: %s\n", |
265 | fname, fxp_error()); |
266 | return 0; |
267 | } |
268 | nnames = namesize = 0; |
269 | ournames = NULL; |
270 | while (1) { |
271 | int i; |
272 | |
273 | sftp_register(req = fxp_readdir_send(dirhandle)); |
274 | rreq = sftp_find_request(pktin = sftp_recv()); |
275 | assert(rreq == req); |
276 | names = fxp_readdir_recv(pktin, rreq); |
277 | |
278 | if (names == NULL) { |
279 | if (fxp_error_type() == SSH_FX_EOF) |
280 | break; |
281 | printf("%s: reading directory: %s\n", fname, fxp_error()); |
282 | sfree(ournames); |
283 | return 0; |
284 | } |
285 | if (names->nnames == 0) { |
286 | fxp_free_names(names); |
287 | break; |
288 | } |
289 | if (nnames + names->nnames >= namesize) { |
290 | namesize += names->nnames + 128; |
291 | ournames = sresize(ournames, namesize, struct fxp_name *); |
292 | } |
293 | for (i = 0; i < names->nnames; i++) |
9c77ddf6 |
294 | if (!is_dots(names->names[i].filename) && |
295 | (!wildcard || wc_match(wildcard, |
296 | names->names[i].filename))) |
93e86a8b |
297 | ournames[nnames++] = fxp_dup_name(&names->names[i]); |
298 | fxp_free_names(names); |
299 | } |
300 | sftp_register(req = fxp_close_send(dirhandle)); |
301 | rreq = sftp_find_request(pktin = sftp_recv()); |
302 | assert(rreq == req); |
303 | fxp_close_recv(pktin, rreq); |
304 | |
305 | /* |
9c77ddf6 |
306 | * A polite warning if nothing at all matched the |
307 | * wildcard. |
308 | */ |
309 | if (wildcard && !nnames) { |
310 | printf("%s: nothing matched\n", wildcard); |
311 | } |
312 | |
313 | /* |
93e86a8b |
314 | * Sort the names into a clear order. This ought to |
315 | * make things more predictable when we're doing a |
316 | * reget of the same directory, just in case two |
317 | * readdirs on the same remote directory return a |
318 | * different order. |
319 | */ |
320 | qsort(ournames, nnames, sizeof(*ournames), sftp_name_compare); |
321 | |
322 | /* |
323 | * If we're in restart mode, find the last filename on |
324 | * this list that already exists. We may have to do a |
325 | * reget on _that_ file, but shouldn't have to do |
326 | * anything on the previous files. |
327 | * |
328 | * If none of them exists, of course, we start at 0. |
329 | */ |
330 | i = 0; |
331 | while (i < nnames) { |
332 | char *nextoutfname; |
333 | int ret; |
9c77ddf6 |
334 | if (outfname) |
335 | nextoutfname = dir_file_cat(outfname, |
336 | ournames[i]->filename); |
337 | else |
338 | nextoutfname = dupstr(ournames[i]->filename); |
93e86a8b |
339 | ret = (file_type(nextoutfname) == FILE_TYPE_NONEXISTENT); |
340 | sfree(nextoutfname); |
341 | if (ret) |
342 | break; |
343 | i++; |
344 | } |
345 | if (i > 0) |
346 | i--; |
347 | |
348 | /* |
349 | * Now we're ready to recurse. Starting at ournames[i] |
350 | * and continuing on to the end of the list, we |
351 | * construct a new source and target file name, and |
352 | * call sftp_get_file again. |
353 | */ |
354 | for (; i < nnames; i++) { |
355 | char *nextfname, *nextoutfname; |
356 | int ret; |
357 | |
358 | nextfname = dupcat(fname, "/", ournames[i]->filename, NULL); |
9c77ddf6 |
359 | if (outfname) |
360 | nextoutfname = dir_file_cat(outfname, |
361 | ournames[i]->filename); |
362 | else |
363 | nextoutfname = dupstr(ournames[i]->filename); |
364 | ret = sftp_get_file(nextfname, nextoutfname, |
365 | recurse, restart, NULL); |
93e86a8b |
366 | restart = FALSE; /* after first partial file, do full */ |
367 | sfree(nextoutfname); |
368 | sfree(nextfname); |
369 | if (!ret) { |
370 | for (i = 0; i < nnames; i++) { |
371 | fxp_free_name(ournames[i]); |
372 | } |
373 | sfree(ournames); |
374 | return 0; |
375 | } |
376 | } |
377 | |
378 | /* |
379 | * Done this recursion level. Free everything. |
380 | */ |
381 | for (i = 0; i < nnames; i++) { |
382 | fxp_free_name(ournames[i]); |
383 | } |
384 | sfree(ournames); |
385 | |
386 | return 1; |
387 | } |
4c7f0d61 |
388 | } |
4c7f0d61 |
389 | |
1bc24185 |
390 | sftp_register(req = fxp_open_send(fname, SSH_FXF_READ)); |
391 | rreq = sftp_find_request(pktin = sftp_recv()); |
392 | assert(rreq == req); |
7b7de4f4 |
393 | fh = fxp_open_recv(pktin, rreq); |
1bc24185 |
394 | |
4c7f0d61 |
395 | if (!fh) { |
396 | printf("%s: %s\n", fname, fxp_error()); |
4c7f0d61 |
397 | return 0; |
398 | } |
d92624dc |
399 | |
400 | if (restart) { |
401 | fp = fopen(outfname, "rb+"); |
402 | } else { |
403 | fp = fopen(outfname, "wb"); |
404 | } |
405 | |
4c7f0d61 |
406 | if (!fp) { |
407 | printf("local: unable to open %s\n", outfname); |
1bc24185 |
408 | |
409 | sftp_register(req = fxp_close_send(fh)); |
410 | rreq = sftp_find_request(pktin = sftp_recv()); |
411 | assert(rreq == req); |
7b7de4f4 |
412 | fxp_close_recv(pktin, rreq); |
1bc24185 |
413 | |
4c7f0d61 |
414 | return 0; |
415 | } |
416 | |
d92624dc |
417 | if (restart) { |
418 | long posn; |
419 | fseek(fp, 0L, SEEK_END); |
420 | posn = ftell(fp); |
421 | printf("reget: restarting at file position %ld\n", posn); |
422 | offset = uint64_make(0, posn); |
423 | } else { |
424 | offset = uint64_make(0, 0); |
425 | } |
4c7f0d61 |
426 | |
d92624dc |
427 | printf("remote:%s => local:%s\n", fname, outfname); |
4c7f0d61 |
428 | |
429 | /* |
430 | * FIXME: we can use FXP_FSTAT here to get the file size, and |
431 | * thus put up a progress bar. |
432 | */ |
df49ff19 |
433 | ret = 1; |
c606c42d |
434 | xfer = xfer_download_init(fh, offset); |
df0870fc |
435 | while (!xfer_done(xfer)) { |
c606c42d |
436 | void *vbuf; |
437 | int ret, len; |
4c7f0d61 |
438 | int wpos, wlen; |
439 | |
c606c42d |
440 | xfer_download_queue(xfer); |
441 | pktin = sftp_recv(); |
442 | ret = xfer_download_gotpkt(xfer, pktin); |
443 | |
444 | if (ret < 0) { |
445 | printf("error while reading: %s\n", fxp_error()); |
446 | ret = 0; |
4c7f0d61 |
447 | } |
32874aea |
448 | |
c606c42d |
449 | while (xfer_download_data(xfer, &vbuf, &len)) { |
450 | unsigned char *buf = (unsigned char *)vbuf; |
451 | |
452 | wpos = 0; |
453 | while (wpos < len) { |
454 | wlen = fwrite(buf + wpos, 1, len - wpos, fp); |
455 | if (wlen <= 0) { |
456 | printf("error while writing local file\n"); |
457 | ret = 0; |
458 | xfer_set_error(xfer); |
459 | } |
460 | wpos += wlen; |
461 | } |
462 | if (wpos < len) { /* we had an error */ |
df49ff19 |
463 | ret = 0; |
c606c42d |
464 | xfer_set_error(xfer); |
4c7f0d61 |
465 | } |
9ff4e23d |
466 | |
467 | sfree(vbuf); |
df49ff19 |
468 | } |
4c7f0d61 |
469 | } |
470 | |
c606c42d |
471 | xfer_cleanup(xfer); |
472 | |
4c7f0d61 |
473 | fclose(fp); |
1bc24185 |
474 | |
475 | sftp_register(req = fxp_close_send(fh)); |
476 | rreq = sftp_find_request(pktin = sftp_recv()); |
477 | assert(rreq == req); |
7b7de4f4 |
478 | fxp_close_recv(pktin, rreq); |
1bc24185 |
479 | |
df49ff19 |
480 | return ret; |
4c7f0d61 |
481 | } |
482 | |
9c77ddf6 |
483 | int sftp_put_file(char *fname, char *outfname, int recurse, int restart, |
484 | char *wildcard) |
32874aea |
485 | { |
4c7f0d61 |
486 | struct fxp_handle *fh; |
df0870fc |
487 | struct fxp_xfer *xfer; |
1bc24185 |
488 | struct sftp_packet *pktin; |
489 | struct sftp_request *req, *rreq; |
4c7f0d61 |
490 | uint64 offset; |
491 | FILE *fp; |
df0870fc |
492 | int ret, err, eof; |
4c7f0d61 |
493 | |
93e86a8b |
494 | /* |
495 | * In recursive mode, see if we're dealing with a directory. |
496 | * (If we're not in recursive mode, we need not even check: the |
497 | * subsequent fopen will return an error message.) |
498 | */ |
9c77ddf6 |
499 | if (wildcard || (recurse && file_type(fname) == FILE_TYPE_DIRECTORY)) { |
93e86a8b |
500 | struct fxp_attrs attrs; |
501 | int result; |
502 | int nnames, namesize; |
503 | char *name, **ournames; |
504 | DirHandle *dh; |
505 | int i; |
4c7f0d61 |
506 | |
9c77ddf6 |
507 | if (!wildcard) { |
508 | /* |
509 | * First, attempt to create the destination directory, |
510 | * unless it already exists. |
511 | */ |
512 | sftp_register(req = fxp_stat_send(outfname)); |
93e86a8b |
513 | rreq = sftp_find_request(pktin = sftp_recv()); |
514 | assert(rreq == req); |
9c77ddf6 |
515 | result = fxp_stat_recv(pktin, rreq, &attrs); |
516 | if (!result || |
517 | !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) || |
518 | !(attrs.permissions & 0040000)) { |
519 | sftp_register(req = fxp_mkdir_send(outfname)); |
520 | rreq = sftp_find_request(pktin = sftp_recv()); |
521 | assert(rreq == req); |
522 | result = fxp_mkdir_recv(pktin, rreq); |
93e86a8b |
523 | |
9c77ddf6 |
524 | if (!result) { |
525 | printf("%s: create directory: %s\n", |
526 | outfname, fxp_error()); |
527 | return 0; |
528 | } |
93e86a8b |
529 | } |
530 | } |
531 | |
532 | /* |
533 | * Now get the list of filenames in the local directory. |
534 | */ |
93e86a8b |
535 | nnames = namesize = 0; |
536 | ournames = NULL; |
9c77ddf6 |
537 | if (wildcard) { |
538 | WildcardMatcher *wcm; |
539 | |
540 | wcm = begin_wildcard_matching(wildcard); |
541 | if (wcm) { |
542 | while ((name = wildcard_get_filename(wcm)) != NULL) { |
543 | if (nnames >= namesize) { |
544 | namesize += 128; |
545 | ournames = sresize(ournames, namesize, char *); |
546 | } |
547 | ournames[nnames++] = name; |
548 | } |
549 | finish_wildcard_matching(wcm); |
93e86a8b |
550 | } |
9c77ddf6 |
551 | } else { |
552 | dh = open_directory(fname); |
553 | if (!dh) { |
554 | printf("%s: unable to open directory\n", fname); |
555 | return 0; |
556 | } |
557 | while ((name = read_filename(dh)) != NULL) { |
558 | if (nnames >= namesize) { |
559 | namesize += 128; |
560 | ournames = sresize(ournames, namesize, char *); |
561 | } |
562 | ournames[nnames++] = name; |
563 | } |
564 | close_directory(dh); |
565 | } |
566 | |
567 | /* |
568 | * A polite warning if nothing at all matched the |
569 | * wildcard. |
570 | */ |
571 | if (wildcard && !nnames) { |
572 | printf("%s: nothing matched\n", wildcard); |
93e86a8b |
573 | } |
93e86a8b |
574 | |
575 | /* |
576 | * Sort the names into a clear order. This ought to make |
577 | * things more predictable when we're doing a reput of the |
578 | * same directory, just in case two readdirs on the same |
579 | * local directory return a different order. |
580 | */ |
581 | qsort(ournames, nnames, sizeof(*ournames), bare_name_compare); |
582 | |
583 | /* |
584 | * If we're in restart mode, find the last filename on this |
585 | * list that already exists. We may have to do a reput on |
586 | * _that_ file, but shouldn't have to do anything on the |
587 | * previous files. |
588 | * |
589 | * If none of them exists, of course, we start at 0. |
590 | */ |
591 | i = 0; |
592 | while (i < nnames) { |
593 | char *nextoutfname; |
594 | nextoutfname = dupcat(outfname, "/", ournames[i], NULL); |
595 | sftp_register(req = fxp_stat_send(nextoutfname)); |
596 | rreq = sftp_find_request(pktin = sftp_recv()); |
597 | assert(rreq == req); |
598 | result = fxp_stat_recv(pktin, rreq, &attrs); |
599 | sfree(nextoutfname); |
600 | if (!result) |
601 | break; |
602 | i++; |
603 | } |
604 | if (i > 0) |
605 | i--; |
606 | |
607 | /* |
608 | * Now we're ready to recurse. Starting at ournames[i] |
609 | * and continuing on to the end of the list, we |
610 | * construct a new source and target file name, and |
611 | * call sftp_put_file again. |
612 | */ |
613 | for (; i < nnames; i++) { |
614 | char *nextfname, *nextoutfname; |
615 | int ret; |
616 | |
9c77ddf6 |
617 | if (fname) |
618 | nextfname = dir_file_cat(fname, ournames[i]); |
619 | else |
620 | nextfname = dupstr(ournames[i]); |
93e86a8b |
621 | nextoutfname = dupcat(outfname, "/", ournames[i], NULL); |
9c77ddf6 |
622 | ret = sftp_put_file(nextfname, nextoutfname, |
623 | recurse, restart, NULL); |
93e86a8b |
624 | restart = FALSE; /* after first partial file, do full */ |
625 | sfree(nextoutfname); |
626 | sfree(nextfname); |
627 | if (!ret) { |
628 | for (i = 0; i < nnames; i++) { |
629 | sfree(ournames[i]); |
630 | } |
631 | sfree(ournames); |
632 | return 0; |
633 | } |
634 | } |
635 | |
636 | /* |
637 | * Done this recursion level. Free everything. |
638 | */ |
639 | for (i = 0; i < nnames; i++) { |
640 | sfree(ournames[i]); |
641 | } |
642 | sfree(ournames); |
643 | |
644 | return 1; |
4c7f0d61 |
645 | } |
646 | |
647 | fp = fopen(fname, "rb"); |
648 | if (!fp) { |
649 | printf("local: unable to open %s\n", fname); |
4c7f0d61 |
650 | return 0; |
651 | } |
d92624dc |
652 | if (restart) { |
1bc24185 |
653 | sftp_register(req = fxp_open_send(outfname, SSH_FXF_WRITE)); |
d92624dc |
654 | } else { |
1bc24185 |
655 | sftp_register(req = fxp_open_send(outfname, SSH_FXF_WRITE | |
656 | SSH_FXF_CREAT | SSH_FXF_TRUNC)); |
d92624dc |
657 | } |
1bc24185 |
658 | rreq = sftp_find_request(pktin = sftp_recv()); |
659 | assert(rreq == req); |
7b7de4f4 |
660 | fh = fxp_open_recv(pktin, rreq); |
1bc24185 |
661 | |
4c7f0d61 |
662 | if (!fh) { |
663 | printf("%s: %s\n", outfname, fxp_error()); |
4c7f0d61 |
664 | return 0; |
665 | } |
666 | |
d92624dc |
667 | if (restart) { |
668 | char decbuf[30]; |
669 | struct fxp_attrs attrs; |
1bc24185 |
670 | int ret; |
671 | |
672 | sftp_register(req = fxp_fstat_send(fh)); |
673 | rreq = sftp_find_request(pktin = sftp_recv()); |
674 | assert(rreq == req); |
7b7de4f4 |
675 | ret = fxp_fstat_recv(pktin, rreq, &attrs); |
1bc24185 |
676 | |
677 | if (!ret) { |
d92624dc |
678 | printf("read size of %s: %s\n", outfname, fxp_error()); |
d92624dc |
679 | return 0; |
680 | } |
681 | if (!(attrs.flags & SSH_FILEXFER_ATTR_SIZE)) { |
682 | printf("read size of %s: size was not given\n", outfname); |
d92624dc |
683 | return 0; |
684 | } |
685 | offset = attrs.size; |
686 | uint64_decimal(offset, decbuf); |
687 | printf("reput: restarting at file position %s\n", decbuf); |
688 | if (uint64_compare(offset, uint64_make(0, LONG_MAX)) > 0) { |
689 | printf("reput: remote file is larger than we can deal with\n"); |
d92624dc |
690 | return 0; |
691 | } |
692 | if (fseek(fp, offset.lo, SEEK_SET) != 0) |
693 | fseek(fp, 0, SEEK_END); /* *shrug* */ |
694 | } else { |
695 | offset = uint64_make(0, 0); |
696 | } |
4c7f0d61 |
697 | |
d92624dc |
698 | printf("local:%s => remote:%s\n", fname, outfname); |
4c7f0d61 |
699 | |
700 | /* |
701 | * FIXME: we can use FXP_FSTAT here to get the file size, and |
702 | * thus put up a progress bar. |
703 | */ |
df49ff19 |
704 | ret = 1; |
df0870fc |
705 | xfer = xfer_upload_init(fh, offset); |
706 | err = eof = 0; |
707 | while ((!err && !eof) || !xfer_done(xfer)) { |
4c7f0d61 |
708 | char buffer[4096]; |
1bc24185 |
709 | int len, ret; |
4c7f0d61 |
710 | |
df0870fc |
711 | while (xfer_upload_ready(xfer) && !err && !eof) { |
712 | len = fread(buffer, 1, sizeof(buffer), fp); |
713 | if (len == -1) { |
714 | printf("error while reading local file\n"); |
715 | err = 1; |
716 | } else if (len == 0) { |
717 | eof = 1; |
718 | } else { |
719 | xfer_upload_data(xfer, buffer, len); |
720 | } |
4c7f0d61 |
721 | } |
1bc24185 |
722 | |
2dbd915a |
723 | if (!xfer_done(xfer)) { |
724 | pktin = sftp_recv(); |
725 | ret = xfer_upload_gotpkt(xfer, pktin); |
726 | if (!ret) { |
727 | printf("error while writing: %s\n", fxp_error()); |
728 | err = 1; |
729 | } |
4c7f0d61 |
730 | } |
4c7f0d61 |
731 | } |
732 | |
df0870fc |
733 | xfer_cleanup(xfer); |
734 | |
1bc24185 |
735 | sftp_register(req = fxp_close_send(fh)); |
736 | rreq = sftp_find_request(pktin = sftp_recv()); |
737 | assert(rreq == req); |
7b7de4f4 |
738 | fxp_close_recv(pktin, rreq); |
1bc24185 |
739 | |
4c7f0d61 |
740 | fclose(fp); |
93e86a8b |
741 | |
742 | return ret; |
743 | } |
744 | |
745 | /* ---------------------------------------------------------------------- |
746 | * Actual sftp commands. |
747 | */ |
748 | struct sftp_command { |
749 | char **words; |
750 | int nwords, wordssize; |
751 | int (*obey) (struct sftp_command *); /* returns <0 to quit */ |
752 | }; |
753 | |
754 | int sftp_cmd_null(struct sftp_command *cmd) |
755 | { |
756 | return 1; /* success */ |
757 | } |
758 | |
759 | int sftp_cmd_unknown(struct sftp_command *cmd) |
760 | { |
761 | printf("psftp: unknown command \"%s\"\n", cmd->words[0]); |
762 | return 0; /* failure */ |
763 | } |
764 | |
765 | int sftp_cmd_quit(struct sftp_command *cmd) |
766 | { |
767 | return -1; |
768 | } |
769 | |
b614ce89 |
770 | int sftp_cmd_close(struct sftp_command *cmd) |
771 | { |
772 | if (back == NULL) { |
773 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
774 | return 0; |
775 | } |
776 | |
777 | if (back != NULL && back->socket(backhandle) != NULL) { |
778 | char ch; |
779 | back->special(backhandle, TS_EOF); |
780 | sftp_recvdata(&ch, 1); |
781 | } |
782 | do_sftp_cleanup(); |
783 | |
784 | return 0; |
785 | } |
786 | |
93e86a8b |
787 | /* |
788 | * List a directory. If no arguments are given, list pwd; otherwise |
789 | * list the directory given in words[1]. |
790 | */ |
791 | int sftp_cmd_ls(struct sftp_command *cmd) |
792 | { |
793 | struct fxp_handle *dirh; |
794 | struct fxp_names *names; |
795 | struct fxp_name **ournames; |
796 | int nnames, namesize; |
3394416c |
797 | char *dir, *cdir, *unwcdir, *wildcard; |
93e86a8b |
798 | struct sftp_packet *pktin; |
799 | struct sftp_request *req, *rreq; |
800 | int i; |
801 | |
802 | if (back == NULL) { |
803 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
804 | return 0; |
805 | } |
806 | |
807 | if (cmd->nwords < 2) |
808 | dir = "."; |
809 | else |
810 | dir = cmd->words[1]; |
811 | |
3394416c |
812 | unwcdir = snewn(1 + strlen(dir), char); |
813 | if (wc_unescape(unwcdir, dir)) { |
814 | dir = unwcdir; |
815 | wildcard = NULL; |
816 | } else { |
817 | char *tmpdir; |
818 | int len, check; |
819 | |
820 | wildcard = stripslashes(dir, 0); |
821 | unwcdir = dupstr(dir); |
822 | len = wildcard - dir; |
823 | unwcdir[len] = '\0'; |
824 | if (len > 0 && unwcdir[len-1] == '/') |
825 | unwcdir[len-1] = '\0'; |
826 | tmpdir = snewn(1 + len, char); |
827 | check = wc_unescape(tmpdir, unwcdir); |
828 | sfree(tmpdir); |
829 | if (!check) { |
830 | printf("Multiple-level wildcards are not supported\n"); |
831 | sfree(unwcdir); |
832 | return 0; |
833 | } |
834 | dir = unwcdir; |
835 | } |
836 | |
93e86a8b |
837 | cdir = canonify(dir); |
838 | if (!cdir) { |
839 | printf("%s: %s\n", dir, fxp_error()); |
3394416c |
840 | sfree(unwcdir); |
93e86a8b |
841 | return 0; |
842 | } |
843 | |
844 | printf("Listing directory %s\n", cdir); |
845 | |
846 | sftp_register(req = fxp_opendir_send(cdir)); |
847 | rreq = sftp_find_request(pktin = sftp_recv()); |
848 | assert(rreq == req); |
849 | dirh = fxp_opendir_recv(pktin, rreq); |
850 | |
851 | if (dirh == NULL) { |
852 | printf("Unable to open %s: %s\n", dir, fxp_error()); |
853 | } else { |
854 | nnames = namesize = 0; |
855 | ournames = NULL; |
856 | |
857 | while (1) { |
858 | |
859 | sftp_register(req = fxp_readdir_send(dirh)); |
860 | rreq = sftp_find_request(pktin = sftp_recv()); |
861 | assert(rreq == req); |
862 | names = fxp_readdir_recv(pktin, rreq); |
863 | |
864 | if (names == NULL) { |
865 | if (fxp_error_type() == SSH_FX_EOF) |
866 | break; |
867 | printf("Reading directory %s: %s\n", dir, fxp_error()); |
868 | break; |
869 | } |
870 | if (names->nnames == 0) { |
871 | fxp_free_names(names); |
872 | break; |
873 | } |
874 | |
875 | if (nnames + names->nnames >= namesize) { |
876 | namesize += names->nnames + 128; |
877 | ournames = sresize(ournames, namesize, struct fxp_name *); |
878 | } |
879 | |
880 | for (i = 0; i < names->nnames; i++) |
3394416c |
881 | if (!wildcard || wc_match(wildcard, names->names[i].filename)) |
882 | ournames[nnames++] = fxp_dup_name(&names->names[i]); |
93e86a8b |
883 | |
884 | fxp_free_names(names); |
885 | } |
886 | sftp_register(req = fxp_close_send(dirh)); |
887 | rreq = sftp_find_request(pktin = sftp_recv()); |
888 | assert(rreq == req); |
889 | fxp_close_recv(pktin, rreq); |
890 | |
891 | /* |
892 | * Now we have our filenames. Sort them by actual file |
893 | * name, and then output the longname parts. |
894 | */ |
895 | qsort(ournames, nnames, sizeof(*ournames), sftp_name_compare); |
896 | |
897 | /* |
898 | * And print them. |
899 | */ |
900 | for (i = 0; i < nnames; i++) { |
901 | printf("%s\n", ournames[i]->longname); |
902 | fxp_free_name(ournames[i]); |
903 | } |
904 | sfree(ournames); |
905 | } |
906 | |
907 | sfree(cdir); |
3394416c |
908 | sfree(unwcdir); |
93e86a8b |
909 | |
910 | return 1; |
911 | } |
912 | |
913 | /* |
914 | * Change directories. We do this by canonifying the new name, then |
915 | * trying to OPENDIR it. Only if that succeeds do we set the new pwd. |
916 | */ |
917 | int sftp_cmd_cd(struct sftp_command *cmd) |
918 | { |
919 | struct fxp_handle *dirh; |
920 | struct sftp_packet *pktin; |
921 | struct sftp_request *req, *rreq; |
922 | char *dir; |
923 | |
924 | if (back == NULL) { |
925 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
926 | return 0; |
927 | } |
928 | |
929 | if (cmd->nwords < 2) |
930 | dir = dupstr(homedir); |
931 | else |
932 | dir = canonify(cmd->words[1]); |
933 | |
934 | if (!dir) { |
935 | printf("%s: %s\n", dir, fxp_error()); |
936 | return 0; |
937 | } |
938 | |
939 | sftp_register(req = fxp_opendir_send(dir)); |
940 | rreq = sftp_find_request(pktin = sftp_recv()); |
941 | assert(rreq == req); |
942 | dirh = fxp_opendir_recv(pktin, rreq); |
943 | |
944 | if (!dirh) { |
945 | printf("Directory %s: %s\n", dir, fxp_error()); |
946 | sfree(dir); |
947 | return 0; |
948 | } |
949 | |
950 | sftp_register(req = fxp_close_send(dirh)); |
951 | rreq = sftp_find_request(pktin = sftp_recv()); |
952 | assert(rreq == req); |
953 | fxp_close_recv(pktin, rreq); |
954 | |
955 | sfree(pwd); |
956 | pwd = dir; |
957 | printf("Remote directory is now %s\n", pwd); |
958 | |
959 | return 1; |
960 | } |
961 | |
962 | /* |
963 | * Print current directory. Easy as pie. |
964 | */ |
965 | int sftp_cmd_pwd(struct sftp_command *cmd) |
966 | { |
967 | if (back == NULL) { |
968 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
969 | return 0; |
970 | } |
971 | |
972 | printf("Remote directory is %s\n", pwd); |
973 | return 1; |
974 | } |
975 | |
976 | /* |
9c77ddf6 |
977 | * Get a file and save it at the local end. We have three very |
978 | * similar commands here. The basic one is `get'; `reget' differs |
979 | * in that it checks for the existence of the destination file and |
980 | * starts from where a previous aborted transfer left off; `mget' |
981 | * differs in that it interprets all its arguments as files to |
982 | * transfer (never as a different local name for a remote file) and |
983 | * can handle wildcards. |
93e86a8b |
984 | */ |
9c77ddf6 |
985 | int sftp_general_get(struct sftp_command *cmd, int restart, int multiple) |
93e86a8b |
986 | { |
9c77ddf6 |
987 | char *fname, *unwcfname, *origfname, *outfname; |
93e86a8b |
988 | int i, ret; |
989 | int recurse = FALSE; |
990 | |
991 | if (back == NULL) { |
992 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
993 | return 0; |
994 | } |
995 | |
996 | i = 1; |
997 | while (i < cmd->nwords && cmd->words[i][0] == '-') { |
998 | if (!strcmp(cmd->words[i], "--")) { |
999 | /* finish processing options */ |
1000 | i++; |
1001 | break; |
1002 | } else if (!strcmp(cmd->words[i], "-r")) { |
1003 | recurse = TRUE; |
1004 | } else { |
1005 | printf("get: unrecognised option '%s'\n", cmd->words[i]); |
1006 | return 0; |
1007 | } |
1008 | i++; |
1009 | } |
1010 | |
1011 | if (i >= cmd->nwords) { |
1012 | printf("get: expects a filename\n"); |
1013 | return 0; |
1014 | } |
1015 | |
9c77ddf6 |
1016 | do { |
1017 | unwcfname = NULL; |
1018 | origfname = cmd->words[i++]; |
93e86a8b |
1019 | |
9c77ddf6 |
1020 | if (multiple && |
1021 | !wc_unescape(unwcfname = snewn(strlen(origfname)+1, char), |
1022 | origfname)) { |
1023 | ret = sftp_get_file(pwd, NULL, recurse, restart, origfname); |
1024 | } else { |
1025 | fname = canonify(origfname); |
1026 | if (!fname) { |
1027 | printf("%s: %s\n", origfname, fxp_error()); |
1028 | sfree(unwcfname); |
1029 | return 0; |
1030 | } |
93e86a8b |
1031 | |
9c77ddf6 |
1032 | if (!multiple && i < cmd->nwords) |
1033 | outfname = cmd->words[i++]; |
1034 | else |
3394416c |
1035 | outfname = stripslashes(origfname, 0); |
93e86a8b |
1036 | |
9c77ddf6 |
1037 | ret = sftp_get_file(fname, outfname, recurse, restart, NULL); |
1038 | |
1039 | sfree(fname); |
1040 | } |
1041 | sfree(unwcfname); |
1042 | if (!ret) |
1043 | return ret; |
1044 | |
1045 | } while (multiple && i < cmd->nwords); |
93e86a8b |
1046 | |
1047 | return ret; |
1048 | } |
1049 | int sftp_cmd_get(struct sftp_command *cmd) |
1050 | { |
9c77ddf6 |
1051 | return sftp_general_get(cmd, 0, 0); |
1052 | } |
1053 | int sftp_cmd_mget(struct sftp_command *cmd) |
1054 | { |
1055 | return sftp_general_get(cmd, 0, 1); |
93e86a8b |
1056 | } |
1057 | int sftp_cmd_reget(struct sftp_command *cmd) |
1058 | { |
9c77ddf6 |
1059 | return sftp_general_get(cmd, 1, 0); |
93e86a8b |
1060 | } |
1061 | |
1062 | /* |
9c77ddf6 |
1063 | * Send a file and store it at the remote end. We have three very |
1064 | * similar commands here. The basic one is `put'; `reput' differs |
1065 | * in that it checks for the existence of the destination file and |
1066 | * starts from where a previous aborted transfer left off; `mput' |
1067 | * differs in that it interprets all its arguments as files to |
1068 | * transfer (never as a different remote name for a local file) and |
1069 | * can handle wildcards. |
93e86a8b |
1070 | */ |
9c77ddf6 |
1071 | int sftp_general_put(struct sftp_command *cmd, int restart, int multiple) |
93e86a8b |
1072 | { |
1073 | char *fname, *origoutfname, *outfname; |
1074 | int i, ret; |
1075 | int recurse = FALSE; |
1076 | |
1077 | if (back == NULL) { |
1078 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
1079 | return 0; |
1080 | } |
1081 | |
1082 | i = 1; |
1083 | while (i < cmd->nwords && cmd->words[i][0] == '-') { |
1084 | if (!strcmp(cmd->words[i], "--")) { |
1085 | /* finish processing options */ |
1086 | i++; |
1087 | break; |
1088 | } else if (!strcmp(cmd->words[i], "-r")) { |
1089 | recurse = TRUE; |
1090 | } else { |
1091 | printf("put: unrecognised option '%s'\n", cmd->words[i]); |
1092 | return 0; |
1093 | } |
1094 | i++; |
1095 | } |
1096 | |
1097 | if (i >= cmd->nwords) { |
1098 | printf("put: expects a filename\n"); |
1099 | return 0; |
1100 | } |
1101 | |
9c77ddf6 |
1102 | do { |
1103 | fname = cmd->words[i++]; |
93e86a8b |
1104 | |
9c77ddf6 |
1105 | if (multiple && test_wildcard(fname, FALSE) == WCTYPE_WILDCARD) { |
1106 | ret = sftp_put_file(NULL, pwd, recurse, restart, fname); |
1107 | } else { |
1108 | if (!multiple && i < cmd->nwords) |
1109 | origoutfname = cmd->words[i++]; |
1110 | else |
1111 | origoutfname = stripslashes(fname, 1); |
1112 | |
1113 | outfname = canonify(origoutfname); |
1114 | if (!outfname) { |
1115 | printf("%s: %s\n", origoutfname, fxp_error()); |
1116 | return 0; |
1117 | } |
1118 | ret = sftp_put_file(fname, outfname, recurse, restart, NULL); |
1119 | sfree(outfname); |
1120 | } |
1121 | if (!ret) |
1122 | return ret; |
93e86a8b |
1123 | |
9c77ddf6 |
1124 | } while (multiple && i < cmd->nwords); |
4c7f0d61 |
1125 | |
df49ff19 |
1126 | return ret; |
4c7f0d61 |
1127 | } |
d92624dc |
1128 | int sftp_cmd_put(struct sftp_command *cmd) |
1129 | { |
9c77ddf6 |
1130 | return sftp_general_put(cmd, 0, 0); |
1131 | } |
1132 | int sftp_cmd_mput(struct sftp_command *cmd) |
1133 | { |
1134 | return sftp_general_put(cmd, 0, 1); |
d92624dc |
1135 | } |
1136 | int sftp_cmd_reput(struct sftp_command *cmd) |
1137 | { |
9c77ddf6 |
1138 | return sftp_general_put(cmd, 1, 0); |
d92624dc |
1139 | } |
4c7f0d61 |
1140 | |
9954aaa3 |
1141 | int sftp_cmd_mkdir(struct sftp_command *cmd) |
1142 | { |
1143 | char *dir; |
1bc24185 |
1144 | struct sftp_packet *pktin; |
1145 | struct sftp_request *req, *rreq; |
9954aaa3 |
1146 | int result; |
1147 | |
fa3db767 |
1148 | if (back == NULL) { |
1149 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
1150 | return 0; |
1151 | } |
9954aaa3 |
1152 | |
1153 | if (cmd->nwords < 2) { |
1154 | printf("mkdir: expects a directory\n"); |
1155 | return 0; |
1156 | } |
1157 | |
1158 | dir = canonify(cmd->words[1]); |
1159 | if (!dir) { |
1160 | printf("%s: %s\n", dir, fxp_error()); |
1161 | return 0; |
1162 | } |
1163 | |
1bc24185 |
1164 | sftp_register(req = fxp_mkdir_send(dir)); |
1165 | rreq = sftp_find_request(pktin = sftp_recv()); |
1166 | assert(rreq == req); |
7b7de4f4 |
1167 | result = fxp_mkdir_recv(pktin, rreq); |
1bc24185 |
1168 | |
9954aaa3 |
1169 | if (!result) { |
1170 | printf("mkdir %s: %s\n", dir, fxp_error()); |
1171 | sfree(dir); |
1172 | return 0; |
1173 | } |
1174 | |
d92624dc |
1175 | sfree(dir); |
df49ff19 |
1176 | return 1; |
9954aaa3 |
1177 | } |
1178 | |
1179 | int sftp_cmd_rmdir(struct sftp_command *cmd) |
1180 | { |
1181 | char *dir; |
1bc24185 |
1182 | struct sftp_packet *pktin; |
1183 | struct sftp_request *req, *rreq; |
9954aaa3 |
1184 | int result; |
1185 | |
fa3db767 |
1186 | if (back == NULL) { |
1187 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
1188 | return 0; |
1189 | } |
9954aaa3 |
1190 | |
1191 | if (cmd->nwords < 2) { |
1192 | printf("rmdir: expects a directory\n"); |
1193 | return 0; |
1194 | } |
1195 | |
1196 | dir = canonify(cmd->words[1]); |
1197 | if (!dir) { |
1198 | printf("%s: %s\n", dir, fxp_error()); |
1199 | return 0; |
1200 | } |
1201 | |
1bc24185 |
1202 | sftp_register(req = fxp_rmdir_send(dir)); |
1203 | rreq = sftp_find_request(pktin = sftp_recv()); |
1204 | assert(rreq == req); |
7b7de4f4 |
1205 | result = fxp_rmdir_recv(pktin, rreq); |
1bc24185 |
1206 | |
9954aaa3 |
1207 | if (!result) { |
1208 | printf("rmdir %s: %s\n", dir, fxp_error()); |
1209 | sfree(dir); |
1210 | return 0; |
1211 | } |
1212 | |
d92624dc |
1213 | sfree(dir); |
df49ff19 |
1214 | return 1; |
9954aaa3 |
1215 | } |
1216 | |
1217 | int sftp_cmd_rm(struct sftp_command *cmd) |
1218 | { |
1219 | char *fname; |
1bc24185 |
1220 | struct sftp_packet *pktin; |
1221 | struct sftp_request *req, *rreq; |
9954aaa3 |
1222 | int result; |
1223 | |
fa3db767 |
1224 | if (back == NULL) { |
1225 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
1226 | return 0; |
1227 | } |
1228 | |
9954aaa3 |
1229 | if (cmd->nwords < 2) { |
1230 | printf("rm: expects a filename\n"); |
1231 | return 0; |
1232 | } |
1233 | |
1234 | fname = canonify(cmd->words[1]); |
1235 | if (!fname) { |
1236 | printf("%s: %s\n", fname, fxp_error()); |
1237 | return 0; |
1238 | } |
1239 | |
1bc24185 |
1240 | sftp_register(req = fxp_remove_send(fname)); |
1241 | rreq = sftp_find_request(pktin = sftp_recv()); |
1242 | assert(rreq == req); |
7b7de4f4 |
1243 | result = fxp_remove_recv(pktin, rreq); |
1bc24185 |
1244 | |
9954aaa3 |
1245 | if (!result) { |
1246 | printf("rm %s: %s\n", fname, fxp_error()); |
1247 | sfree(fname); |
1248 | return 0; |
1249 | } |
1250 | |
d92624dc |
1251 | sfree(fname); |
df49ff19 |
1252 | return 1; |
d92624dc |
1253 | } |
1254 | |
1255 | int sftp_cmd_mv(struct sftp_command *cmd) |
1256 | { |
1257 | char *srcfname, *dstfname; |
1bc24185 |
1258 | struct sftp_packet *pktin; |
1259 | struct sftp_request *req, *rreq; |
d92624dc |
1260 | int result; |
1261 | |
fa3db767 |
1262 | if (back == NULL) { |
1263 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
1264 | return 0; |
1265 | } |
1266 | |
d92624dc |
1267 | if (cmd->nwords < 3) { |
1268 | printf("mv: expects two filenames\n"); |
9954aaa3 |
1269 | return 0; |
d92624dc |
1270 | } |
1271 | srcfname = canonify(cmd->words[1]); |
1272 | if (!srcfname) { |
1273 | printf("%s: %s\n", srcfname, fxp_error()); |
1274 | return 0; |
1275 | } |
1276 | |
1277 | dstfname = canonify(cmd->words[2]); |
1278 | if (!dstfname) { |
1279 | printf("%s: %s\n", dstfname, fxp_error()); |
1280 | return 0; |
1281 | } |
9954aaa3 |
1282 | |
1bc24185 |
1283 | sftp_register(req = fxp_rename_send(srcfname, dstfname)); |
1284 | rreq = sftp_find_request(pktin = sftp_recv()); |
1285 | assert(rreq == req); |
7b7de4f4 |
1286 | result = fxp_rename_recv(pktin, rreq); |
1bc24185 |
1287 | |
d92624dc |
1288 | if (!result) { |
1289 | char const *error = fxp_error(); |
1290 | struct fxp_attrs attrs; |
1291 | |
1292 | /* |
1293 | * The move might have failed because dstfname pointed at a |
1294 | * directory. We check this possibility now: if dstfname |
1295 | * _is_ a directory, we re-attempt the move by appending |
1296 | * the basename of srcfname to dstfname. |
1297 | */ |
1bc24185 |
1298 | sftp_register(req = fxp_stat_send(dstfname)); |
1299 | rreq = sftp_find_request(pktin = sftp_recv()); |
1300 | assert(rreq == req); |
7b7de4f4 |
1301 | result = fxp_stat_recv(pktin, rreq, &attrs); |
1bc24185 |
1302 | |
d92624dc |
1303 | if (result && |
1304 | (attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) && |
1305 | (attrs.permissions & 0040000)) { |
1306 | char *p; |
1307 | char *newname, *newcanon; |
1308 | printf("(destination %s is a directory)\n", dstfname); |
1309 | p = srcfname + strlen(srcfname); |
1310 | while (p > srcfname && p[-1] != '/') p--; |
1311 | newname = dupcat(dstfname, "/", p, NULL); |
1312 | newcanon = canonify(newname); |
1313 | sfree(newname); |
1314 | if (newcanon) { |
1315 | sfree(dstfname); |
1316 | dstfname = newcanon; |
1bc24185 |
1317 | |
1318 | sftp_register(req = fxp_rename_send(srcfname, dstfname)); |
1319 | rreq = sftp_find_request(pktin = sftp_recv()); |
1320 | assert(rreq == req); |
7b7de4f4 |
1321 | result = fxp_rename_recv(pktin, rreq); |
1bc24185 |
1322 | |
d92624dc |
1323 | error = result ? NULL : fxp_error(); |
1324 | } |
1325 | } |
1326 | if (error) { |
1327 | printf("mv %s %s: %s\n", srcfname, dstfname, error); |
1328 | sfree(srcfname); |
1329 | sfree(dstfname); |
1330 | return 0; |
1331 | } |
1332 | } |
1333 | printf("%s -> %s\n", srcfname, dstfname); |
1334 | |
1335 | sfree(srcfname); |
1336 | sfree(dstfname); |
df49ff19 |
1337 | return 1; |
9954aaa3 |
1338 | } |
1339 | |
d92624dc |
1340 | int sftp_cmd_chmod(struct sftp_command *cmd) |
1341 | { |
1342 | char *fname, *mode; |
1343 | int result; |
1344 | struct fxp_attrs attrs; |
1345 | unsigned attrs_clr, attrs_xor, oldperms, newperms; |
1bc24185 |
1346 | struct sftp_packet *pktin; |
1347 | struct sftp_request *req, *rreq; |
d92624dc |
1348 | |
fa3db767 |
1349 | if (back == NULL) { |
1350 | printf("psftp: not connected to a host; use \"open host.name\"\n"); |
1351 | return 0; |
1352 | } |
1353 | |
d92624dc |
1354 | if (cmd->nwords < 3) { |
1355 | printf("chmod: expects a mode specifier and a filename\n"); |
1356 | return 0; |
1357 | } |
1358 | |
1359 | /* |
1360 | * Attempt to parse the mode specifier in cmd->words[1]. We |
1361 | * don't support the full horror of Unix chmod; instead we |
1362 | * support a much simpler syntax in which the user can either |
1363 | * specify an octal number, or a comma-separated sequence of |
1364 | * [ugoa]*[-+=][rwxst]+. (The initial [ugoa] sequence may |
1365 | * _only_ be omitted if the only attribute mentioned is t, |
1366 | * since all others require a user/group/other specification. |
1367 | * Additionally, the s attribute may not be specified for any |
1368 | * [ugoa] specifications other than exactly u or exactly g. |
1369 | */ |
1370 | attrs_clr = attrs_xor = 0; |
1371 | mode = cmd->words[1]; |
1372 | if (mode[0] >= '0' && mode[0] <= '9') { |
1373 | if (mode[strspn(mode, "01234567")]) { |
1374 | printf("chmod: numeric file modes should" |
1375 | " contain digits 0-7 only\n"); |
1376 | return 0; |
1377 | } |
1378 | attrs_clr = 07777; |
1379 | sscanf(mode, "%o", &attrs_xor); |
1380 | attrs_xor &= attrs_clr; |
1381 | } else { |
1382 | while (*mode) { |
1383 | char *modebegin = mode; |
1384 | unsigned subset, perms; |
1385 | int action; |
1386 | |
1387 | subset = 0; |
1388 | while (*mode && *mode != ',' && |
1389 | *mode != '+' && *mode != '-' && *mode != '=') { |
1390 | switch (*mode) { |
1391 | case 'u': subset |= 04700; break; /* setuid, user perms */ |
1392 | case 'g': subset |= 02070; break; /* setgid, group perms */ |
1393 | case 'o': subset |= 00007; break; /* just other perms */ |
1394 | case 'a': subset |= 06777; break; /* all of the above */ |
1395 | default: |
1396 | printf("chmod: file mode '%.*s' contains unrecognised" |
1397 | " user/group/other specifier '%c'\n", |
b51259f6 |
1398 | (int)strcspn(modebegin, ","), modebegin, *mode); |
d92624dc |
1399 | return 0; |
1400 | } |
1401 | mode++; |
1402 | } |
1403 | if (!*mode || *mode == ',') { |
1404 | printf("chmod: file mode '%.*s' is incomplete\n", |
b51259f6 |
1405 | (int)strcspn(modebegin, ","), modebegin); |
d92624dc |
1406 | return 0; |
1407 | } |
1408 | action = *mode++; |
1409 | if (!*mode || *mode == ',') { |
1410 | printf("chmod: file mode '%.*s' is incomplete\n", |
b51259f6 |
1411 | (int)strcspn(modebegin, ","), modebegin); |
d92624dc |
1412 | return 0; |
1413 | } |
1414 | perms = 0; |
1415 | while (*mode && *mode != ',') { |
1416 | switch (*mode) { |
1417 | case 'r': perms |= 00444; break; |
1418 | case 'w': perms |= 00222; break; |
1419 | case 'x': perms |= 00111; break; |
1420 | case 't': perms |= 01000; subset |= 01000; break; |
1421 | case 's': |
1422 | if ((subset & 06777) != 04700 && |
1423 | (subset & 06777) != 02070) { |
1424 | printf("chmod: file mode '%.*s': set[ug]id bit should" |
1425 | " be used with exactly one of u or g only\n", |
b51259f6 |
1426 | (int)strcspn(modebegin, ","), modebegin); |
d92624dc |
1427 | return 0; |
1428 | } |
1429 | perms |= 06000; |
1430 | break; |
1431 | default: |
1432 | printf("chmod: file mode '%.*s' contains unrecognised" |
1433 | " permission specifier '%c'\n", |
b51259f6 |
1434 | (int)strcspn(modebegin, ","), modebegin, *mode); |
d92624dc |
1435 | return 0; |
1436 | } |
1437 | mode++; |
1438 | } |
1439 | if (!(subset & 06777) && (perms &~ subset)) { |
1440 | printf("chmod: file mode '%.*s' contains no user/group/other" |
1441 | " specifier and permissions other than 't' \n", |
b51259f6 |
1442 | (int)strcspn(modebegin, ","), modebegin); |
d92624dc |
1443 | return 0; |
1444 | } |
1445 | perms &= subset; |
1446 | switch (action) { |
1447 | case '+': |
1448 | attrs_clr |= perms; |
1449 | attrs_xor |= perms; |
1450 | break; |
1451 | case '-': |
1452 | attrs_clr |= perms; |
1453 | attrs_xor &= ~perms; |
1454 | break; |
1455 | case '=': |
1456 | attrs_clr |= subset; |
1457 | attrs_xor |= perms; |
1458 | break; |
1459 | } |
1460 | if (*mode) mode++; /* eat comma */ |
1461 | } |
1462 | } |
1463 | |
1464 | fname = canonify(cmd->words[2]); |
1465 | if (!fname) { |
1466 | printf("%s: %s\n", fname, fxp_error()); |
1467 | return 0; |
1468 | } |
1469 | |
1bc24185 |
1470 | sftp_register(req = fxp_stat_send(fname)); |
1471 | rreq = sftp_find_request(pktin = sftp_recv()); |
1472 | assert(rreq == req); |
7b7de4f4 |
1473 | result = fxp_stat_recv(pktin, rreq, &attrs); |
1bc24185 |
1474 | |
d92624dc |
1475 | if (!result || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS)) { |
1476 | printf("get attrs for %s: %s\n", fname, |
1477 | result ? "file permissions not provided" : fxp_error()); |
1478 | sfree(fname); |
1479 | return 0; |
1480 | } |
1481 | |
1482 | attrs.flags = SSH_FILEXFER_ATTR_PERMISSIONS; /* perms _only_ */ |
1483 | oldperms = attrs.permissions & 07777; |
1484 | attrs.permissions &= ~attrs_clr; |
1485 | attrs.permissions ^= attrs_xor; |
1486 | newperms = attrs.permissions & 07777; |
1487 | |
1bc24185 |
1488 | sftp_register(req = fxp_setstat_send(fname, attrs)); |
1489 | rreq = sftp_find_request(pktin = sftp_recv()); |
1490 | assert(rreq == req); |
7b7de4f4 |
1491 | result = fxp_setstat_recv(pktin, rreq); |
d92624dc |
1492 | |
1493 | if (!result) { |
1494 | printf("set attrs for %s: %s\n", fname, fxp_error()); |
1495 | sfree(fname); |
1496 | return 0; |
1497 | } |
1498 | |
1499 | printf("%s: %04o -> %04o\n", fname, oldperms, newperms); |
1500 | |
1501 | sfree(fname); |
df49ff19 |
1502 | return 1; |
d92624dc |
1503 | } |
9954aaa3 |
1504 | |
fa3db767 |
1505 | static int sftp_cmd_open(struct sftp_command *cmd) |
1506 | { |
f11233cb |
1507 | int portnumber; |
1508 | |
fa3db767 |
1509 | if (back != NULL) { |
1510 | printf("psftp: already connected\n"); |
1511 | return 0; |
1512 | } |
1513 | |
1514 | if (cmd->nwords < 2) { |
1515 | printf("open: expects a host name\n"); |
1516 | return 0; |
1517 | } |
1518 | |
f11233cb |
1519 | if (cmd->nwords > 2) { |
1520 | portnumber = atoi(cmd->words[2]); |
1521 | if (portnumber == 0) { |
1522 | printf("open: invalid port number\n"); |
1523 | return 0; |
1524 | } |
1525 | } else |
1526 | portnumber = 0; |
1527 | |
1528 | if (psftp_connect(cmd->words[1], NULL, portnumber)) { |
fa3db767 |
1529 | back = NULL; /* connection is already closed */ |
1530 | return -1; /* this is fatal */ |
1531 | } |
1532 | do_sftp_init(); |
df49ff19 |
1533 | return 1; |
fa3db767 |
1534 | } |
1535 | |
3af97463 |
1536 | static int sftp_cmd_lcd(struct sftp_command *cmd) |
1537 | { |
d6cc41e6 |
1538 | char *currdir, *errmsg; |
3af97463 |
1539 | |
1540 | if (cmd->nwords < 2) { |
1541 | printf("lcd: expects a local directory name\n"); |
1542 | return 0; |
1543 | } |
1544 | |
d6cc41e6 |
1545 | errmsg = psftp_lcd(cmd->words[1]); |
1546 | if (errmsg) { |
1547 | printf("lcd: unable to change directory: %s\n", errmsg); |
1548 | sfree(errmsg); |
3af97463 |
1549 | return 0; |
1550 | } |
1551 | |
d6cc41e6 |
1552 | currdir = psftp_getcwd(); |
3af97463 |
1553 | printf("New local directory is %s\n", currdir); |
1554 | sfree(currdir); |
1555 | |
1556 | return 1; |
1557 | } |
1558 | |
1559 | static int sftp_cmd_lpwd(struct sftp_command *cmd) |
1560 | { |
1561 | char *currdir; |
3af97463 |
1562 | |
d6cc41e6 |
1563 | currdir = psftp_getcwd(); |
3af97463 |
1564 | printf("Current local directory is %s\n", currdir); |
1565 | sfree(currdir); |
1566 | |
1567 | return 1; |
1568 | } |
1569 | |
1570 | static int sftp_cmd_pling(struct sftp_command *cmd) |
1571 | { |
1572 | int exitcode; |
1573 | |
1574 | exitcode = system(cmd->words[1]); |
1575 | return (exitcode == 0); |
1576 | } |
1577 | |
bf5240cd |
1578 | static int sftp_cmd_help(struct sftp_command *cmd); |
1579 | |
4c7f0d61 |
1580 | static struct sftp_cmd_lookup { |
1581 | char *name; |
bf5240cd |
1582 | /* |
1583 | * For help purposes, there are two kinds of command: |
1584 | * |
1585 | * - primary commands, in which `longhelp' is non-NULL. In |
1586 | * this case `shorthelp' is descriptive text, and `longhelp' |
1587 | * is longer descriptive text intended to be printed after |
1588 | * the command name. |
1589 | * |
1590 | * - alias commands, in which `longhelp' is NULL. In this case |
1591 | * `shorthelp' is the name of a primary command, which |
1592 | * contains the help that should double up for this command. |
1593 | */ |
3af97463 |
1594 | int listed; /* do we list this in primary help? */ |
bf5240cd |
1595 | char *shorthelp; |
1596 | char *longhelp; |
32874aea |
1597 | int (*obey) (struct sftp_command *); |
4c7f0d61 |
1598 | } sftp_lookup[] = { |
1599 | /* |
1600 | * List of sftp commands. This is binary-searched so it MUST be |
1601 | * in ASCII order. |
1602 | */ |
32874aea |
1603 | { |
d6cc41e6 |
1604 | "!", TRUE, "run a local command", |
3af97463 |
1605 | "<command>\n" |
d6cc41e6 |
1606 | /* FIXME: this example is crap for non-Windows. */ |
1607 | " Runs a local command. For example, \"!del myfile\".\n", |
3af97463 |
1608 | sftp_cmd_pling |
1609 | }, |
1610 | { |
1611 | "bye", TRUE, "finish your SFTP session", |
bf5240cd |
1612 | "\n" |
1613 | " Terminates your SFTP session and quits the PSFTP program.\n", |
1614 | sftp_cmd_quit |
1615 | }, |
1616 | { |
3af97463 |
1617 | "cd", TRUE, "change your remote working directory", |
bf5240cd |
1618 | " [ <New working directory> ]\n" |
1619 | " Change the remote working directory for your SFTP session.\n" |
1620 | " If a new working directory is not supplied, you will be\n" |
1621 | " returned to your home directory.\n", |
1622 | sftp_cmd_cd |
1623 | }, |
1624 | { |
3af97463 |
1625 | "chmod", TRUE, "change file permissions and modes", |
bf5240cd |
1626 | " ( <octal-digits> | <modifiers> ) <filename>\n" |
1627 | " Change the file permissions on a file or directory.\n" |
1628 | " <octal-digits> can be any octal Unix permission specifier.\n" |
1629 | " Alternatively, <modifiers> can include:\n" |
1630 | " u+r make file readable by owning user\n" |
1631 | " u+w make file writable by owning user\n" |
1632 | " u+x make file executable by owning user\n" |
1633 | " u-r make file not readable by owning user\n" |
1634 | " [also u-w, u-x]\n" |
1635 | " g+r make file readable by members of owning group\n" |
1636 | " [also g+w, g+x, g-r, g-w, g-x]\n" |
1637 | " o+r make file readable by all other users\n" |
1638 | " [also o+w, o+x, o-r, o-w, o-x]\n" |
1639 | " a+r make file readable by absolutely everybody\n" |
1640 | " [also a+w, a+x, a-r, a-w, a-x]\n" |
1641 | " u+s enable the Unix set-user-ID bit\n" |
1642 | " u-s disable the Unix set-user-ID bit\n" |
1643 | " g+s enable the Unix set-group-ID bit\n" |
1644 | " g-s disable the Unix set-group-ID bit\n" |
1645 | " +t enable the Unix \"sticky bit\"\n" |
1646 | " You can give more than one modifier for the same user (\"g-rwx\"), and\n" |
1647 | " more than one user for the same modifier (\"ug+w\"). You can\n" |
1648 | " use commas to separate different modifiers (\"u+rwx,g+s\").\n", |
1649 | sftp_cmd_chmod |
1650 | }, |
1651 | { |
b614ce89 |
1652 | "close", TRUE, "finish your SFTP session but do not quit PSFTP", |
1653 | "\n" |
1654 | " Terminates your SFTP session, but does not quit the PSFTP\n" |
1655 | " program. You can then use \"open\" to start another SFTP\n" |
1656 | " session, to the same server or to a different one.\n", |
1657 | sftp_cmd_close |
1658 | }, |
1659 | { |
3af97463 |
1660 | "del", TRUE, "delete a file", |
bf5240cd |
1661 | " <filename>\n" |
1662 | " Delete a file.\n", |
1663 | sftp_cmd_rm |
1664 | }, |
1665 | { |
3af97463 |
1666 | "delete", FALSE, "del", NULL, sftp_cmd_rm |
bf5240cd |
1667 | }, |
1668 | { |
3af97463 |
1669 | "dir", TRUE, "list contents of a remote directory", |
bf5240cd |
1670 | " [ <directory-name> ]\n" |
1671 | " List the contents of a specified directory on the server.\n" |
1672 | " If <directory-name> is not given, the current working directory\n" |
1673 | " will be listed.\n", |
1674 | sftp_cmd_ls |
1675 | }, |
1676 | { |
3af97463 |
1677 | "exit", TRUE, "bye", NULL, sftp_cmd_quit |
bf5240cd |
1678 | }, |
1679 | { |
3af97463 |
1680 | "get", TRUE, "download a file from the server to your local machine", |
bf5240cd |
1681 | " <filename> [ <local-filename> ]\n" |
1682 | " Downloads a file on the server and stores it locally under\n" |
1683 | " the same name, or under a different one if you supply the\n" |
1684 | " argument <local-filename>.\n", |
1685 | sftp_cmd_get |
1686 | }, |
1687 | { |
3af97463 |
1688 | "help", TRUE, "give help", |
bf5240cd |
1689 | " [ <command> [ <command> ... ] ]\n" |
1690 | " Give general help if no commands are specified.\n" |
1691 | " If one or more commands are specified, give specific help on\n" |
1692 | " those particular commands.\n", |
1693 | sftp_cmd_help |
1694 | }, |
1695 | { |
3af97463 |
1696 | "lcd", TRUE, "change local working directory", |
1697 | " <local-directory-name>\n" |
1698 | " Change the local working directory of the PSFTP program (the\n" |
1699 | " default location where the \"get\" command will save files).\n", |
1700 | sftp_cmd_lcd |
1701 | }, |
1702 | { |
1703 | "lpwd", TRUE, "print local working directory", |
1704 | "\n" |
1705 | " Print the local working directory of the PSFTP program (the\n" |
1706 | " default location where the \"get\" command will save files).\n", |
1707 | sftp_cmd_lpwd |
1708 | }, |
1709 | { |
1710 | "ls", TRUE, "dir", NULL, |
bf5240cd |
1711 | sftp_cmd_ls |
1712 | }, |
1713 | { |
9c77ddf6 |
1714 | "mget", TRUE, "download multiple files at once", |
1715 | " <filename-or-wildcard> [ <filename-or-wildcard>... ]\n" |
1716 | " Downloads many files from the server, storing each one under\n" |
1717 | " the same name it has on the server side. You can use wildcards\n" |
1718 | " such as \"*.c\" to specify lots of files at once.\n", |
1719 | sftp_cmd_mget |
1720 | }, |
1721 | { |
3af97463 |
1722 | "mkdir", TRUE, "create a directory on the remote server", |
bf5240cd |
1723 | " <directory-name>\n" |
1724 | " Creates a directory with the given name on the server.\n", |
1725 | sftp_cmd_mkdir |
1726 | }, |
1727 | { |
9c77ddf6 |
1728 | "mput", TRUE, "upload multiple files at once", |
1729 | " <filename-or-wildcard> [ <filename-or-wildcard>... ]\n" |
1730 | " Uploads many files to the server, storing each one under the\n" |
1731 | " same name it has on the client side. You can use wildcards\n" |
1732 | " such as \"*.c\" to specify lots of files at once.\n", |
1733 | sftp_cmd_mput |
1734 | }, |
1735 | { |
3af97463 |
1736 | "mv", TRUE, "move or rename a file on the remote server", |
bf5240cd |
1737 | " <source-filename> <destination-filename>\n" |
1738 | " Moves or renames the file <source-filename> on the server,\n" |
1739 | " so that it is accessible under the name <destination-filename>.\n", |
1740 | sftp_cmd_mv |
1741 | }, |
1742 | { |
3af97463 |
1743 | "open", TRUE, "connect to a host", |
f11233cb |
1744 | " [<user>@]<hostname> [<port>]\n" |
fa3db767 |
1745 | " Establishes an SFTP connection to a given host. Only usable\n" |
1746 | " when you did not already specify a host name on the command\n" |
1747 | " line.\n", |
1748 | sftp_cmd_open |
1749 | }, |
1750 | { |
56542985 |
1751 | "put", TRUE, "upload a file from your local machine to the server", |
1752 | " <filename> [ <remote-filename> ]\n" |
1753 | " Uploads a file to the server and stores it there under\n" |
1754 | " the same name, or under a different one if you supply the\n" |
1755 | " argument <remote-filename>.\n", |
1756 | sftp_cmd_put |
1757 | }, |
1758 | { |
3af97463 |
1759 | "pwd", TRUE, "print your remote working directory", |
4f2b387f |
1760 | "\n" |
1761 | " Print the current remote working directory for your SFTP session.\n", |
1762 | sftp_cmd_pwd |
1763 | }, |
1764 | { |
3af97463 |
1765 | "quit", TRUE, "bye", NULL, |
bf5240cd |
1766 | sftp_cmd_quit |
1767 | }, |
1768 | { |
3af97463 |
1769 | "reget", TRUE, "continue downloading a file", |
bf5240cd |
1770 | " <filename> [ <local-filename> ]\n" |
1771 | " Works exactly like the \"get\" command, but the local file\n" |
1772 | " must already exist. The download will begin at the end of the\n" |
1773 | " file. This is for resuming a download that was interrupted.\n", |
1774 | sftp_cmd_reget |
1775 | }, |
1776 | { |
3af97463 |
1777 | "ren", TRUE, "mv", NULL, |
bf5240cd |
1778 | sftp_cmd_mv |
1779 | }, |
1780 | { |
3af97463 |
1781 | "rename", FALSE, "mv", NULL, |
bf5240cd |
1782 | sftp_cmd_mv |
1783 | }, |
1784 | { |
3af97463 |
1785 | "reput", TRUE, "continue uploading a file", |
bf5240cd |
1786 | " <filename> [ <remote-filename> ]\n" |
1787 | " Works exactly like the \"put\" command, but the remote file\n" |
1788 | " must already exist. The upload will begin at the end of the\n" |
1789 | " file. This is for resuming an upload that was interrupted.\n", |
1790 | sftp_cmd_reput |
1791 | }, |
1792 | { |
3af97463 |
1793 | "rm", TRUE, "del", NULL, |
bf5240cd |
1794 | sftp_cmd_rm |
1795 | }, |
1796 | { |
3af97463 |
1797 | "rmdir", TRUE, "remove a directory on the remote server", |
bf5240cd |
1798 | " <directory-name>\n" |
1799 | " Removes the directory with the given name on the server.\n" |
1800 | " The directory will not be removed unless it is empty.\n", |
1801 | sftp_cmd_rmdir |
1802 | } |
1803 | }; |
1804 | |
1805 | const struct sftp_cmd_lookup *lookup_command(char *name) |
1806 | { |
1807 | int i, j, k, cmp; |
1808 | |
1809 | i = -1; |
1810 | j = sizeof(sftp_lookup) / sizeof(*sftp_lookup); |
1811 | while (j - i > 1) { |
1812 | k = (j + i) / 2; |
1813 | cmp = strcmp(name, sftp_lookup[k].name); |
1814 | if (cmp < 0) |
1815 | j = k; |
1816 | else if (cmp > 0) |
1817 | i = k; |
1818 | else { |
1819 | return &sftp_lookup[k]; |
1820 | } |
1821 | } |
1822 | return NULL; |
1823 | } |
1824 | |
1825 | static int sftp_cmd_help(struct sftp_command *cmd) |
1826 | { |
1827 | int i; |
1828 | if (cmd->nwords == 1) { |
1829 | /* |
1830 | * Give short help on each command. |
1831 | */ |
1832 | int maxlen; |
1833 | maxlen = 0; |
1834 | for (i = 0; i < sizeof(sftp_lookup) / sizeof(*sftp_lookup); i++) { |
3af97463 |
1835 | int len; |
1836 | if (!sftp_lookup[i].listed) |
1837 | continue; |
1838 | len = strlen(sftp_lookup[i].name); |
bf5240cd |
1839 | if (maxlen < len) |
1840 | maxlen = len; |
1841 | } |
1842 | for (i = 0; i < sizeof(sftp_lookup) / sizeof(*sftp_lookup); i++) { |
1843 | const struct sftp_cmd_lookup *lookup; |
3af97463 |
1844 | if (!sftp_lookup[i].listed) |
1845 | continue; |
bf5240cd |
1846 | lookup = &sftp_lookup[i]; |
1847 | printf("%-*s", maxlen+2, lookup->name); |
1848 | if (lookup->longhelp == NULL) |
1849 | lookup = lookup_command(lookup->shorthelp); |
1850 | printf("%s\n", lookup->shorthelp); |
1851 | } |
1852 | } else { |
1853 | /* |
1854 | * Give long help on specific commands. |
1855 | */ |
1856 | for (i = 1; i < cmd->nwords; i++) { |
1857 | const struct sftp_cmd_lookup *lookup; |
1858 | lookup = lookup_command(cmd->words[i]); |
1859 | if (!lookup) { |
1860 | printf("help: %s: command not found\n", cmd->words[i]); |
1861 | } else { |
1862 | printf("%s", lookup->name); |
1863 | if (lookup->longhelp == NULL) |
1864 | lookup = lookup_command(lookup->shorthelp); |
1865 | printf("%s", lookup->longhelp); |
1866 | } |
1867 | } |
1868 | } |
df49ff19 |
1869 | return 1; |
bf5240cd |
1870 | } |
4c7f0d61 |
1871 | |
1872 | /* ---------------------------------------------------------------------- |
1873 | * Command line reading and parsing. |
1874 | */ |
9954aaa3 |
1875 | struct sftp_command *sftp_getcmd(FILE *fp, int mode, int modeflags) |
32874aea |
1876 | { |
4c7f0d61 |
1877 | char *line; |
4c7f0d61 |
1878 | struct sftp_command *cmd; |
1879 | char *p, *q, *r; |
1880 | int quoting; |
1881 | |
3d88e64d |
1882 | cmd = snew(struct sftp_command); |
4c7f0d61 |
1883 | cmd->words = NULL; |
1884 | cmd->nwords = 0; |
1885 | cmd->wordssize = 0; |
1886 | |
1887 | line = NULL; |
39934deb |
1888 | |
1889 | if (fp) { |
1890 | if (modeflags & 1) |
1891 | printf("psftp> "); |
1892 | line = fgetline(fp); |
1893 | } else { |
65857773 |
1894 | line = ssh_sftp_get_cmdline("psftp> ", back == NULL); |
4c7f0d61 |
1895 | } |
39934deb |
1896 | |
1897 | if (!line || !*line) { |
1898 | cmd->obey = sftp_cmd_quit; |
1899 | if ((mode == 0) || (modeflags & 1)) |
1900 | printf("quit\n"); |
1901 | return cmd; /* eof */ |
1902 | } |
1903 | |
1904 | line[strcspn(line, "\r\n")] = '\0'; |
1905 | |
df49ff19 |
1906 | if (modeflags & 1) { |
1907 | printf("%s\n", line); |
1908 | } |
4c7f0d61 |
1909 | |
4c7f0d61 |
1910 | p = line; |
3af97463 |
1911 | while (*p && (*p == ' ' || *p == '\t')) |
1912 | p++; |
1913 | |
1914 | if (*p == '!') { |
1915 | /* |
1916 | * Special case: the ! command. This is always parsed as |
1917 | * exactly two words: one containing the !, and the second |
1918 | * containing everything else on the line. |
1919 | */ |
1920 | cmd->nwords = cmd->wordssize = 2; |
3d88e64d |
1921 | cmd->words = sresize(cmd->words, cmd->wordssize, char *); |
679539d7 |
1922 | cmd->words[0] = dupstr("!"); |
1923 | cmd->words[1] = dupstr(p+1); |
3af97463 |
1924 | } else { |
1925 | |
1926 | /* |
1927 | * Parse the command line into words. The syntax is: |
1928 | * - double quotes are removed, but cause spaces within to be |
1929 | * treated as non-separating. |
1930 | * - a double-doublequote pair is a literal double quote, inside |
1931 | * _or_ outside quotes. Like this: |
1932 | * |
1933 | * firstword "second word" "this has ""quotes"" in" and""this"" |
1934 | * |
1935 | * becomes |
1936 | * |
1937 | * >firstword< |
1938 | * >second word< |
1939 | * >this has "quotes" in< |
1940 | * >and"this"< |
1941 | */ |
4c7f0d61 |
1942 | while (*p) { |
3af97463 |
1943 | /* skip whitespace */ |
1944 | while (*p && (*p == ' ' || *p == '\t')) |
1945 | p++; |
1946 | /* mark start of word */ |
1947 | q = r = p; /* q sits at start, r writes word */ |
1948 | quoting = 0; |
1949 | while (*p) { |
1950 | if (!quoting && (*p == ' ' || *p == '\t')) |
1951 | break; /* reached end of word */ |
1952 | else if (*p == '"' && p[1] == '"') |
1953 | p += 2, *r++ = '"'; /* a literal quote */ |
1954 | else if (*p == '"') |
1955 | p++, quoting = !quoting; |
1956 | else |
1957 | *r++ = *p++; |
1958 | } |
1959 | if (*p) |
1960 | p++; /* skip over the whitespace */ |
1961 | *r = '\0'; |
1962 | if (cmd->nwords >= cmd->wordssize) { |
1963 | cmd->wordssize = cmd->nwords + 16; |
3d88e64d |
1964 | cmd->words = sresize(cmd->words, cmd->wordssize, char *); |
3af97463 |
1965 | } |
679539d7 |
1966 | cmd->words[cmd->nwords++] = dupstr(q); |
4c7f0d61 |
1967 | } |
4c7f0d61 |
1968 | } |
1969 | |
39934deb |
1970 | sfree(line); |
1971 | |
4c7f0d61 |
1972 | /* |
1973 | * Now parse the first word and assign a function. |
1974 | */ |
1975 | |
1976 | if (cmd->nwords == 0) |
1977 | cmd->obey = sftp_cmd_null; |
1978 | else { |
bf5240cd |
1979 | const struct sftp_cmd_lookup *lookup; |
1980 | lookup = lookup_command(cmd->words[0]); |
1981 | if (!lookup) |
1982 | cmd->obey = sftp_cmd_unknown; |
1983 | else |
1984 | cmd->obey = lookup->obey; |
4c7f0d61 |
1985 | } |
1986 | |
1987 | return cmd; |
1988 | } |
1989 | |
774204f5 |
1990 | static int do_sftp_init(void) |
32874aea |
1991 | { |
1bc24185 |
1992 | struct sftp_packet *pktin; |
1993 | struct sftp_request *req, *rreq; |
1994 | |
4c7f0d61 |
1995 | /* |
1996 | * Do protocol initialisation. |
1997 | */ |
1998 | if (!fxp_init()) { |
1999 | fprintf(stderr, |
32874aea |
2000 | "Fatal: unable to initialise SFTP: %s\n", fxp_error()); |
774204f5 |
2001 | return 1; /* failure */ |
4c7f0d61 |
2002 | } |
2003 | |
2004 | /* |
2005 | * Find out where our home directory is. |
2006 | */ |
1bc24185 |
2007 | sftp_register(req = fxp_realpath_send(".")); |
2008 | rreq = sftp_find_request(pktin = sftp_recv()); |
2009 | assert(rreq == req); |
7b7de4f4 |
2010 | homedir = fxp_realpath_recv(pktin, rreq); |
1bc24185 |
2011 | |
4c7f0d61 |
2012 | if (!homedir) { |
2013 | fprintf(stderr, |
2014 | "Warning: failed to resolve home directory: %s\n", |
2015 | fxp_error()); |
2016 | homedir = dupstr("."); |
2017 | } else { |
2018 | printf("Remote working directory is %s\n", homedir); |
2019 | } |
2020 | pwd = dupstr(homedir); |
774204f5 |
2021 | return 0; |
fa3db767 |
2022 | } |
2023 | |
679539d7 |
2024 | void do_sftp_cleanup() |
2025 | { |
2026 | char ch; |
f11233cb |
2027 | if (back) { |
2028 | back->special(backhandle, TS_EOF); |
2029 | sftp_recvdata(&ch, 1); |
2030 | back->free(backhandle); |
2031 | sftp_cleanup_request(); |
65857773 |
2032 | back = NULL; |
2033 | backhandle = NULL; |
f11233cb |
2034 | } |
679539d7 |
2035 | if (pwd) { |
2036 | sfree(pwd); |
2037 | pwd = NULL; |
2038 | } |
2039 | if (homedir) { |
2040 | sfree(homedir); |
2041 | homedir = NULL; |
2042 | } |
2043 | } |
2044 | |
fa3db767 |
2045 | void do_sftp(int mode, int modeflags, char *batchfile) |
2046 | { |
2047 | FILE *fp; |
df49ff19 |
2048 | int ret; |
4c7f0d61 |
2049 | |
9954aaa3 |
2050 | /* |
2051 | * Batch mode? |
4c7f0d61 |
2052 | */ |
9954aaa3 |
2053 | if (mode == 0) { |
2054 | |
2055 | /* ------------------------------------------------------------------ |
2056 | * Now we're ready to do Real Stuff. |
2057 | */ |
2058 | while (1) { |
df49ff19 |
2059 | struct sftp_command *cmd; |
39934deb |
2060 | cmd = sftp_getcmd(NULL, 0, 0); |
df49ff19 |
2061 | if (!cmd) |
2062 | break; |
679539d7 |
2063 | ret = cmd->obey(cmd); |
2064 | if (cmd->words) { |
2065 | int i; |
2066 | for(i = 0; i < cmd->nwords; i++) |
2067 | sfree(cmd->words[i]); |
2068 | sfree(cmd->words); |
2069 | } |
2070 | sfree(cmd); |
2071 | if (ret < 0) |
df49ff19 |
2072 | break; |
bf5240cd |
2073 | } |
9954aaa3 |
2074 | } else { |
2075 | fp = fopen(batchfile, "r"); |
2076 | if (!fp) { |
bf5240cd |
2077 | printf("Fatal: unable to open %s\n", batchfile); |
2078 | return; |
9954aaa3 |
2079 | } |
2080 | while (1) { |
bf5240cd |
2081 | struct sftp_command *cmd; |
2082 | cmd = sftp_getcmd(fp, mode, modeflags); |
2083 | if (!cmd) |
2084 | break; |
df49ff19 |
2085 | ret = cmd->obey(cmd); |
2086 | if (ret < 0) |
bf5240cd |
2087 | break; |
df49ff19 |
2088 | if (ret == 0) { |
bf5240cd |
2089 | if (!(modeflags & 2)) |
9954aaa3 |
2090 | break; |
bf5240cd |
2091 | } |
9954aaa3 |
2092 | } |
bf5240cd |
2093 | fclose(fp); |
9954aaa3 |
2094 | |
4c7f0d61 |
2095 | } |
4a8fc3c4 |
2096 | } |
4c7f0d61 |
2097 | |
4a8fc3c4 |
2098 | /* ---------------------------------------------------------------------- |
2099 | * Dirty bits: integration with PuTTY. |
2100 | */ |
2101 | |
2102 | static int verbose = 0; |
2103 | |
7bedb13c |
2104 | /* |
4a8fc3c4 |
2105 | * Print an error message and perform a fatal exit. |
2106 | */ |
2107 | void fatalbox(char *fmt, ...) |
2108 | { |
57356d63 |
2109 | char *str, *str2; |
4a8fc3c4 |
2110 | va_list ap; |
2111 | va_start(ap, fmt); |
57356d63 |
2112 | str = dupvprintf(fmt, ap); |
2113 | str2 = dupcat("Fatal: ", str, "\n", NULL); |
2114 | sfree(str); |
4a8fc3c4 |
2115 | va_end(ap); |
57356d63 |
2116 | fputs(str2, stderr); |
2117 | sfree(str2); |
4a8fc3c4 |
2118 | |
93b581bd |
2119 | cleanup_exit(1); |
4a8fc3c4 |
2120 | } |
1709795f |
2121 | void modalfatalbox(char *fmt, ...) |
2122 | { |
57356d63 |
2123 | char *str, *str2; |
1709795f |
2124 | va_list ap; |
2125 | va_start(ap, fmt); |
57356d63 |
2126 | str = dupvprintf(fmt, ap); |
2127 | str2 = dupcat("Fatal: ", str, "\n", NULL); |
2128 | sfree(str); |
1709795f |
2129 | va_end(ap); |
57356d63 |
2130 | fputs(str2, stderr); |
2131 | sfree(str2); |
1709795f |
2132 | |
2133 | cleanup_exit(1); |
2134 | } |
a8327734 |
2135 | void connection_fatal(void *frontend, char *fmt, ...) |
4a8fc3c4 |
2136 | { |
57356d63 |
2137 | char *str, *str2; |
4a8fc3c4 |
2138 | va_list ap; |
2139 | va_start(ap, fmt); |
57356d63 |
2140 | str = dupvprintf(fmt, ap); |
2141 | str2 = dupcat("Fatal: ", str, "\n", NULL); |
2142 | sfree(str); |
4a8fc3c4 |
2143 | va_end(ap); |
57356d63 |
2144 | fputs(str2, stderr); |
2145 | sfree(str2); |
4a8fc3c4 |
2146 | |
93b581bd |
2147 | cleanup_exit(1); |
4a8fc3c4 |
2148 | } |
2149 | |
6b78788a |
2150 | void ldisc_send(void *handle, char *buf, int len, int interactive) |
32874aea |
2151 | { |
4a8fc3c4 |
2152 | /* |
2153 | * This is only here because of the calls to ldisc_send(NULL, |
2154 | * 0) in ssh.c. Nothing in PSFTP actually needs to use the |
2155 | * ldisc as an ldisc. So if we get called with any real data, I |
2156 | * want to know about it. |
4c7f0d61 |
2157 | */ |
4a8fc3c4 |
2158 | assert(len == 0); |
2159 | } |
2160 | |
2161 | /* |
c44bf5bd |
2162 | * In psftp, all agent requests should be synchronous, so this is a |
2163 | * never-called stub. |
2164 | */ |
2165 | void agent_schedule_callback(void (*callback)(void *, void *, int), |
2166 | void *callback_ctx, void *data, int len) |
2167 | { |
2168 | assert(!"We shouldn't be here"); |
2169 | } |
2170 | |
2171 | /* |
4a8fc3c4 |
2172 | * Receive a block of data from the SSH link. Block until all data |
2173 | * is available. |
2174 | * |
2175 | * To do this, we repeatedly call the SSH protocol module, with our |
2176 | * own trap in from_backend() to catch the data that comes back. We |
2177 | * do this until we have enough data. |
2178 | */ |
2179 | |
32874aea |
2180 | static unsigned char *outptr; /* where to put the data */ |
2181 | static unsigned outlen; /* how much data required */ |
4a8fc3c4 |
2182 | static unsigned char *pending = NULL; /* any spare data */ |
32874aea |
2183 | static unsigned pendlen = 0, pendsize = 0; /* length and phys. size of buffer */ |
9fab77dc |
2184 | int from_backend(void *frontend, int is_stderr, const char *data, int datalen) |
32874aea |
2185 | { |
2186 | unsigned char *p = (unsigned char *) data; |
2187 | unsigned len = (unsigned) datalen; |
4a8fc3c4 |
2188 | |
2189 | /* |
2190 | * stderr data is just spouted to local stderr and otherwise |
2191 | * ignored. |
2192 | */ |
2193 | if (is_stderr) { |
bfa5400d |
2194 | if (len > 0) |
2195 | fwrite(data, 1, len, stderr); |
5471d09a |
2196 | return 0; |
4a8fc3c4 |
2197 | } |
2198 | |
2199 | /* |
2200 | * If this is before the real session begins, just return. |
2201 | */ |
2202 | if (!outptr) |
5471d09a |
2203 | return 0; |
4a8fc3c4 |
2204 | |
bfa5400d |
2205 | if ((outlen > 0) && (len > 0)) { |
32874aea |
2206 | unsigned used = outlen; |
2207 | if (used > len) |
2208 | used = len; |
2209 | memcpy(outptr, p, used); |
2210 | outptr += used; |
2211 | outlen -= used; |
2212 | p += used; |
2213 | len -= used; |
4a8fc3c4 |
2214 | } |
2215 | |
2216 | if (len > 0) { |
32874aea |
2217 | if (pendsize < pendlen + len) { |
2218 | pendsize = pendlen + len + 4096; |
3d88e64d |
2219 | pending = sresize(pending, pendsize, unsigned char); |
32874aea |
2220 | } |
2221 | memcpy(pending + pendlen, p, len); |
2222 | pendlen += len; |
4a8fc3c4 |
2223 | } |
5471d09a |
2224 | |
2225 | return 0; |
4a8fc3c4 |
2226 | } |
32874aea |
2227 | int sftp_recvdata(char *buf, int len) |
2228 | { |
2229 | outptr = (unsigned char *) buf; |
4a8fc3c4 |
2230 | outlen = len; |
2231 | |
2232 | /* |
2233 | * See if the pending-input block contains some of what we |
2234 | * need. |
2235 | */ |
2236 | if (pendlen > 0) { |
32874aea |
2237 | unsigned pendused = pendlen; |
2238 | if (pendused > outlen) |
2239 | pendused = outlen; |
4a8fc3c4 |
2240 | memcpy(outptr, pending, pendused); |
32874aea |
2241 | memmove(pending, pending + pendused, pendlen - pendused); |
4a8fc3c4 |
2242 | outptr += pendused; |
2243 | outlen -= pendused; |
32874aea |
2244 | pendlen -= pendused; |
2245 | if (pendlen == 0) { |
2246 | pendsize = 0; |
2247 | sfree(pending); |
2248 | pending = NULL; |
2249 | } |
2250 | if (outlen == 0) |
2251 | return 1; |
4a8fc3c4 |
2252 | } |
2253 | |
2254 | while (outlen > 0) { |
d6cc41e6 |
2255 | if (ssh_sftp_loop_iteration() < 0) |
32874aea |
2256 | return 0; /* doom */ |
4a8fc3c4 |
2257 | } |
2258 | |
2259 | return 1; |
2260 | } |
32874aea |
2261 | int sftp_senddata(char *buf, int len) |
2262 | { |
776792d7 |
2263 | back->send(backhandle, buf, len); |
4a8fc3c4 |
2264 | return 1; |
2265 | } |
2266 | |
2267 | /* |
4a8fc3c4 |
2268 | * Short description of parameters. |
2269 | */ |
2270 | static void usage(void) |
2271 | { |
2272 | printf("PuTTY Secure File Transfer (SFTP) client\n"); |
2273 | printf("%s\n", ver); |
90767715 |
2274 | printf("Usage: psftp [options] [user@]host\n"); |
4a8fc3c4 |
2275 | printf("Options:\n"); |
9954aaa3 |
2276 | printf(" -b file use specified batchfile\n"); |
2277 | printf(" -bc output batchfile commands\n"); |
2278 | printf(" -be don't stop batchfile processing if errors\n"); |
4a8fc3c4 |
2279 | printf(" -v show verbose messages\n"); |
e2a197cf |
2280 | printf(" -load sessname Load settings from saved session\n"); |
2281 | printf(" -l user connect with specified username\n"); |
4a8fc3c4 |
2282 | printf(" -P port connect to specified port\n"); |
2283 | printf(" -pw passw login with specified password\n"); |
e2a197cf |
2284 | printf(" -1 -2 force use of particular SSH protocol version\n"); |
2285 | printf(" -C enable compression\n"); |
2286 | printf(" -i key private key file for authentication\n"); |
2287 | printf(" -batch disable all interactive prompts\n"); |
dc108ebc |
2288 | printf(" -V print version information\n"); |
93b581bd |
2289 | cleanup_exit(1); |
4a8fc3c4 |
2290 | } |
2291 | |
dc108ebc |
2292 | static void version(void) |
2293 | { |
2294 | printf("psftp: %s\n", ver); |
2295 | cleanup_exit(1); |
2296 | } |
2297 | |
4a8fc3c4 |
2298 | /* |
fa3db767 |
2299 | * Connect to a host. |
4a8fc3c4 |
2300 | */ |
fa3db767 |
2301 | static int psftp_connect(char *userhost, char *user, int portnumber) |
4a8fc3c4 |
2302 | { |
fa3db767 |
2303 | char *host, *realhost; |
cbe2d68f |
2304 | const char *err; |
b51259f6 |
2305 | void *logctx; |
4a8fc3c4 |
2306 | |
2307 | /* Separate host and username */ |
2308 | host = userhost; |
2309 | host = strrchr(host, '@'); |
2310 | if (host == NULL) { |
2311 | host = userhost; |
2312 | } else { |
2313 | *host++ = '\0'; |
2314 | if (user) { |
32874aea |
2315 | printf("psftp: multiple usernames specified; using \"%s\"\n", |
2316 | user); |
4a8fc3c4 |
2317 | } else |
2318 | user = userhost; |
2319 | } |
2320 | |
18e62ad8 |
2321 | /* |
2322 | * If we haven't loaded session details already (e.g., from -load), |
2323 | * try looking for a session called "host". |
2324 | */ |
2325 | if (!loaded_session) { |
2326 | /* Try to load settings for `host' into a temporary config */ |
2327 | Config cfg2; |
2328 | cfg2.host[0] = '\0'; |
2329 | do_defaults(host, &cfg2); |
2330 | if (cfg2.host[0] != '\0') { |
2331 | /* Settings present and include hostname */ |
2332 | /* Re-load data into the real config. */ |
2333 | do_defaults(host, &cfg); |
2334 | } else { |
2335 | /* Session doesn't exist or mention a hostname. */ |
2336 | /* Use `host' as a bare hostname. */ |
2337 | strncpy(cfg.host, host, sizeof(cfg.host) - 1); |
2338 | cfg.host[sizeof(cfg.host) - 1] = '\0'; |
2339 | } |
2340 | } else { |
2341 | /* Patch in hostname `host' to session details. */ |
32874aea |
2342 | strncpy(cfg.host, host, sizeof(cfg.host) - 1); |
2343 | cfg.host[sizeof(cfg.host) - 1] = '\0'; |
f133db8e |
2344 | } |
2345 | |
2346 | /* |
2347 | * Force use of SSH. (If they got the protocol wrong we assume the |
2348 | * port is useless too.) |
2349 | */ |
2350 | if (cfg.protocol != PROT_SSH) { |
2351 | cfg.protocol = PROT_SSH; |
2352 | cfg.port = 22; |
4a8fc3c4 |
2353 | } |
2354 | |
449925a6 |
2355 | /* |
4123fa9a |
2356 | * If saved session / Default Settings says SSH-1 (`1 only' or `1'), |
2357 | * then change it to SSH-2, on the grounds that that's more likely to |
2358 | * work for SFTP. (Can be overridden with `-1' option.) |
2359 | * But if it says `2 only' or `2', respect which. |
2360 | */ |
2361 | if (cfg.sshprot != 2 && cfg.sshprot != 3) |
2362 | cfg.sshprot = 2; |
2363 | |
2364 | /* |
c0a81592 |
2365 | * Enact command-line overrides. |
2366 | */ |
5555d393 |
2367 | cmdline_run_saved(&cfg); |
c0a81592 |
2368 | |
2369 | /* |
449925a6 |
2370 | * Trim leading whitespace off the hostname if it's there. |
2371 | */ |
2372 | { |
2373 | int space = strspn(cfg.host, " \t"); |
2374 | memmove(cfg.host, cfg.host+space, 1+strlen(cfg.host)-space); |
2375 | } |
2376 | |
2377 | /* See if host is of the form user@host */ |
2378 | if (cfg.host[0] != '\0') { |
5dd103a8 |
2379 | char *atsign = strrchr(cfg.host, '@'); |
449925a6 |
2380 | /* Make sure we're not overflowing the user field */ |
2381 | if (atsign) { |
2382 | if (atsign - cfg.host < sizeof cfg.username) { |
2383 | strncpy(cfg.username, cfg.host, atsign - cfg.host); |
2384 | cfg.username[atsign - cfg.host] = '\0'; |
2385 | } |
2386 | memmove(cfg.host, atsign + 1, 1 + strlen(atsign + 1)); |
2387 | } |
2388 | } |
2389 | |
2390 | /* |
2391 | * Trim a colon suffix off the hostname if it's there. |
2392 | */ |
2393 | cfg.host[strcspn(cfg.host, ":")] = '\0'; |
2394 | |
cae0c023 |
2395 | /* |
2396 | * Remove any remaining whitespace from the hostname. |
2397 | */ |
2398 | { |
2399 | int p1 = 0, p2 = 0; |
2400 | while (cfg.host[p2] != '\0') { |
2401 | if (cfg.host[p2] != ' ' && cfg.host[p2] != '\t') { |
2402 | cfg.host[p1] = cfg.host[p2]; |
2403 | p1++; |
2404 | } |
2405 | p2++; |
2406 | } |
2407 | cfg.host[p1] = '\0'; |
2408 | } |
2409 | |
4a8fc3c4 |
2410 | /* Set username */ |
2411 | if (user != NULL && user[0] != '\0') { |
32874aea |
2412 | strncpy(cfg.username, user, sizeof(cfg.username) - 1); |
2413 | cfg.username[sizeof(cfg.username) - 1] = '\0'; |
4a8fc3c4 |
2414 | } |
2415 | if (!cfg.username[0]) { |
b5af97b3 |
2416 | if (!console_get_line("login as: ", |
2417 | cfg.username, sizeof(cfg.username), FALSE)) { |
2418 | fprintf(stderr, "psftp: no username, aborting\n"); |
93b581bd |
2419 | cleanup_exit(1); |
4a8fc3c4 |
2420 | } else { |
2421 | int len = strlen(cfg.username); |
32874aea |
2422 | if (cfg.username[len - 1] == '\n') |
2423 | cfg.username[len - 1] = '\0'; |
4a8fc3c4 |
2424 | } |
2425 | } |
2426 | |
4a8fc3c4 |
2427 | if (portnumber) |
2428 | cfg.port = portnumber; |
2429 | |
d27b4a18 |
2430 | /* |
2431 | * Disable scary things which shouldn't be enabled for simple |
2432 | * things like SCP and SFTP: agent forwarding, port forwarding, |
2433 | * X forwarding. |
2434 | */ |
2435 | cfg.x11_forward = 0; |
2436 | cfg.agentfwd = 0; |
2437 | cfg.portfwd[0] = cfg.portfwd[1] = '\0'; |
2438 | |
bebf22d0 |
2439 | /* Set up subsystem name. */ |
4a8fc3c4 |
2440 | strcpy(cfg.remote_cmd, "sftp"); |
2441 | cfg.ssh_subsys = TRUE; |
2442 | cfg.nopty = TRUE; |
2443 | |
bebf22d0 |
2444 | /* |
2445 | * Set up fallback option, for SSH1 servers or servers with the |
2446 | * sftp subsystem not enabled but the server binary installed |
2447 | * in the usual place. We only support fallback on Unix |
248c0c5a |
2448 | * systems, and we use a kludgy piece of shellery which should |
2449 | * try to find sftp-server in various places (the obvious |
2450 | * systemwide spots /usr/lib and /usr/local/lib, and then the |
2451 | * user's PATH) and finally give up. |
bebf22d0 |
2452 | * |
248c0c5a |
2453 | * test -x /usr/lib/sftp-server && exec /usr/lib/sftp-server |
2454 | * test -x /usr/local/lib/sftp-server && exec /usr/local/lib/sftp-server |
2455 | * exec sftp-server |
bebf22d0 |
2456 | * |
2457 | * the idea being that this will attempt to use either of the |
2458 | * obvious pathnames and then give up, and when it does give up |
2459 | * it will print the preferred pathname in the error messages. |
2460 | */ |
2461 | cfg.remote_cmd_ptr2 = |
248c0c5a |
2462 | "test -x /usr/lib/sftp-server && exec /usr/lib/sftp-server\n" |
2463 | "test -x /usr/local/lib/sftp-server && exec /usr/local/lib/sftp-server\n" |
2464 | "exec sftp-server"; |
bebf22d0 |
2465 | cfg.ssh_subsys2 = FALSE; |
2466 | |
4a8fc3c4 |
2467 | back = &ssh_backend; |
2468 | |
79bf227b |
2469 | err = back->init(NULL, &backhandle, &cfg, cfg.host, cfg.port, &realhost, |
2470 | 0, cfg.tcp_keepalives); |
4a8fc3c4 |
2471 | if (err != NULL) { |
fa3db767 |
2472 | fprintf(stderr, "ssh_init: %s\n", err); |
4a8fc3c4 |
2473 | return 1; |
2474 | } |
c229ef97 |
2475 | logctx = log_init(NULL, &cfg); |
a8327734 |
2476 | back->provide_logctx(backhandle, logctx); |
d3fef4a5 |
2477 | console_provide_logctx(logctx); |
d6cc41e6 |
2478 | while (!back->sendok(backhandle)) { |
2479 | if (ssh_sftp_loop_iteration() < 0) { |
2480 | fprintf(stderr, "ssh_init: error during SSH connection setup\n"); |
2481 | return 1; |
2482 | } |
2483 | } |
4a8fc3c4 |
2484 | if (verbose && realhost != NULL) |
2485 | printf("Connected to %s\n", realhost); |
679539d7 |
2486 | if (realhost != NULL) |
2487 | sfree(realhost); |
fa3db767 |
2488 | return 0; |
2489 | } |
2490 | |
c0a81592 |
2491 | void cmdline_error(char *p, ...) |
2492 | { |
2493 | va_list ap; |
86256dc6 |
2494 | fprintf(stderr, "psftp: "); |
c0a81592 |
2495 | va_start(ap, p); |
2496 | vfprintf(stderr, p, ap); |
2497 | va_end(ap); |
86256dc6 |
2498 | fprintf(stderr, "\n try typing \"psftp -h\" for help\n"); |
c0a81592 |
2499 | exit(1); |
2500 | } |
2501 | |
fa3db767 |
2502 | /* |
2503 | * Main program. Parse arguments etc. |
2504 | */ |
d6cc41e6 |
2505 | int psftp_main(int argc, char *argv[]) |
fa3db767 |
2506 | { |
2507 | int i; |
2508 | int portnumber = 0; |
2509 | char *userhost, *user; |
2510 | int mode = 0; |
2511 | int modeflags = 0; |
2512 | char *batchfile = NULL; |
86256dc6 |
2513 | int errors = 0; |
fa3db767 |
2514 | |
b51259f6 |
2515 | flags = FLAG_STDERR | FLAG_INTERACTIVE |
2516 | #ifdef FLAG_SYNCAGENT |
2517 | | FLAG_SYNCAGENT |
2518 | #endif |
2519 | ; |
c0a81592 |
2520 | cmdline_tooltype = TOOLTYPE_FILETRANSFER; |
ff2ae367 |
2521 | ssh_get_line = &console_get_line; |
fa3db767 |
2522 | sk_init(); |
2523 | |
2524 | userhost = user = NULL; |
2525 | |
18e62ad8 |
2526 | /* Load Default Settings before doing anything else. */ |
2527 | do_defaults(NULL, &cfg); |
2528 | loaded_session = FALSE; |
2529 | |
86256dc6 |
2530 | errors = 0; |
fa3db767 |
2531 | for (i = 1; i < argc; i++) { |
c0a81592 |
2532 | int ret; |
fa3db767 |
2533 | if (argv[i][0] != '-') { |
c0a81592 |
2534 | if (userhost) |
2535 | usage(); |
2536 | else |
2537 | userhost = dupstr(argv[i]); |
2538 | continue; |
2539 | } |
5555d393 |
2540 | ret = cmdline_process_param(argv[i], i+1<argc?argv[i+1]:NULL, 1, &cfg); |
c0a81592 |
2541 | if (ret == -2) { |
2542 | cmdline_error("option \"%s\" requires an argument", argv[i]); |
2543 | } else if (ret == 2) { |
2544 | i++; /* skip next argument */ |
2545 | } else if (ret == 1) { |
2546 | /* We have our own verbosity in addition to `flags'. */ |
2547 | if (flags & FLAG_VERBOSE) |
2548 | verbose = 1; |
fa3db767 |
2549 | } else if (strcmp(argv[i], "-h") == 0 || |
2550 | strcmp(argv[i], "-?") == 0) { |
2551 | usage(); |
dc108ebc |
2552 | } else if (strcmp(argv[i], "-V") == 0) { |
2553 | version(); |
c0a81592 |
2554 | } else if (strcmp(argv[i], "-batch") == 0) { |
2555 | console_batch_mode = 1; |
fa3db767 |
2556 | } else if (strcmp(argv[i], "-b") == 0 && i + 1 < argc) { |
2557 | mode = 1; |
2558 | batchfile = argv[++i]; |
d13c2ee9 |
2559 | } else if (strcmp(argv[i], "-bc") == 0) { |
fa3db767 |
2560 | modeflags = modeflags | 1; |
d13c2ee9 |
2561 | } else if (strcmp(argv[i], "-be") == 0) { |
fa3db767 |
2562 | modeflags = modeflags | 2; |
2563 | } else if (strcmp(argv[i], "--") == 0) { |
2564 | i++; |
2565 | break; |
2566 | } else { |
86256dc6 |
2567 | cmdline_error("unknown option \"%s\"", argv[i]); |
fa3db767 |
2568 | } |
2569 | } |
2570 | argc -= i; |
2571 | argv += i; |
2572 | back = NULL; |
2573 | |
2574 | /* |
e1bb41d1 |
2575 | * If the loaded session provides a hostname, and a hostname has not |
2576 | * otherwise been specified, pop it in `userhost' so that |
2577 | * `psftp -load sessname' is sufficient to start a session. |
2578 | */ |
2579 | if (!userhost && cfg.host[0] != '\0') { |
2580 | userhost = dupstr(cfg.host); |
2581 | } |
2582 | |
2583 | /* |
fa3db767 |
2584 | * If a user@host string has already been provided, connect to |
2585 | * it now. |
2586 | */ |
2587 | if (userhost) { |
679539d7 |
2588 | int ret; |
2589 | ret = psftp_connect(userhost, user, portnumber); |
2590 | sfree(userhost); |
2591 | if (ret) |
fa3db767 |
2592 | return 1; |
774204f5 |
2593 | if (do_sftp_init()) |
2594 | return 1; |
fa3db767 |
2595 | } else { |
2596 | printf("psftp: no hostname specified; use \"open host.name\"" |
679539d7 |
2597 | " to connect\n"); |
fa3db767 |
2598 | } |
4c7f0d61 |
2599 | |
9954aaa3 |
2600 | do_sftp(mode, modeflags, batchfile); |
4a8fc3c4 |
2601 | |
51470298 |
2602 | if (back != NULL && back->socket(backhandle) != NULL) { |
4a8fc3c4 |
2603 | char ch; |
51470298 |
2604 | back->special(backhandle, TS_EOF); |
4a8fc3c4 |
2605 | sftp_recvdata(&ch, 1); |
2606 | } |
b614ce89 |
2607 | do_sftp_cleanup(); |
4a8fc3c4 |
2608 | random_save_seed(); |
679539d7 |
2609 | cmdline_cleanup(); |
2610 | console_provide_logctx(NULL); |
679539d7 |
2611 | sk_cleanup(); |
4a8fc3c4 |
2612 | |
4c7f0d61 |
2613 | return 0; |
2614 | } |