diff options
Diffstat (limited to 'sftp-client.c')
-rw-r--r-- | sftp-client.c | 792 |
1 files changed, 792 insertions, 0 deletions
diff --git a/sftp-client.c b/sftp-client.c new file mode 100644 index 000000000..458d7364a --- /dev/null +++ b/sftp-client.c | |||
@@ -0,0 +1,792 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2001 Damien Miller. All rights reserved. | ||
3 | * | ||
4 | * Redistribution and use in source and binary forms, with or without | ||
5 | * modification, are permitted provided that the following conditions | ||
6 | * are met: | ||
7 | * 1. Redistributions of source code must retain the above copyright | ||
8 | * notice, this list of conditions and the following disclaimer. | ||
9 | * 2. Redistributions in binary form must reproduce the above copyright | ||
10 | * notice, this list of conditions and the following disclaimer in the | ||
11 | * documentation and/or other materials provided with the distribution. | ||
12 | * | ||
13 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | ||
14 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | ||
15 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | ||
16 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
17 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
18 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
19 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
20 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
21 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | ||
22 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
23 | */ | ||
24 | |||
25 | /* XXX: memleaks */ | ||
26 | /* XXX: signed vs unsigned */ | ||
27 | /* XXX: redesign to allow concurrent overlapped operations */ | ||
28 | /* XXX: we use fatal too much, error may be more appropriate in places */ | ||
29 | /* XXX: copy between two remote sites */ | ||
30 | |||
31 | #include "includes.h" | ||
32 | RCSID("$OpenBSD: sftp-client.c,v 1.1 2001/02/04 11:11:54 djm Exp $"); | ||
33 | |||
34 | #include "ssh.h" | ||
35 | #include "buffer.h" | ||
36 | #include "bufaux.h" | ||
37 | #include "getput.h" | ||
38 | #include "xmalloc.h" | ||
39 | #include "log.h" | ||
40 | #include "atomicio.h" | ||
41 | #include "pathnames.h" | ||
42 | |||
43 | #include "sftp.h" | ||
44 | #include "sftp-common.h" | ||
45 | #include "sftp-client.h" | ||
46 | |||
47 | /* How much data to read/write at at time during copies */ | ||
48 | /* XXX: what should this be? */ | ||
49 | #define COPY_SIZE 8192 | ||
50 | |||
51 | void | ||
52 | send_msg(int fd, Buffer *m) | ||
53 | { | ||
54 | int mlen = buffer_len(m); | ||
55 | int len; | ||
56 | Buffer oqueue; | ||
57 | |||
58 | buffer_init(&oqueue); | ||
59 | buffer_put_int(&oqueue, mlen); | ||
60 | buffer_append(&oqueue, buffer_ptr(m), mlen); | ||
61 | buffer_consume(m, mlen); | ||
62 | |||
63 | len = atomicio(write, fd, buffer_ptr(&oqueue), buffer_len(&oqueue)); | ||
64 | if (len <= 0) | ||
65 | fatal("Couldn't send packet: %s", strerror(errno)); | ||
66 | |||
67 | buffer_free(&oqueue); | ||
68 | } | ||
69 | |||
70 | void | ||
71 | get_msg(int fd, Buffer *m) | ||
72 | { | ||
73 | u_int len, msg_len; | ||
74 | unsigned char buf[4096]; | ||
75 | |||
76 | len = atomicio(read, fd, buf, 4); | ||
77 | if (len != 4) | ||
78 | fatal("Couldn't read packet: %s", strerror(errno)); | ||
79 | |||
80 | msg_len = GET_32BIT(buf); | ||
81 | if (msg_len > 256 * 1024) | ||
82 | fatal("Received message too long %d", msg_len); | ||
83 | |||
84 | while (msg_len) { | ||
85 | len = atomicio(read, fd, buf, MIN(msg_len, sizeof(buf))); | ||
86 | if (len <= 0) | ||
87 | fatal("Couldn't read packet: %s", strerror(errno)); | ||
88 | |||
89 | msg_len -= len; | ||
90 | buffer_append(m, buf, len); | ||
91 | } | ||
92 | } | ||
93 | |||
94 | void | ||
95 | send_string_request(int fd, u_int id, u_int code, char *s, | ||
96 | u_int len) | ||
97 | { | ||
98 | Buffer msg; | ||
99 | |||
100 | buffer_init(&msg); | ||
101 | buffer_put_char(&msg, code); | ||
102 | buffer_put_int(&msg, id); | ||
103 | buffer_put_string(&msg, s, len); | ||
104 | send_msg(fd, &msg); | ||
105 | debug3("Sent message fd %d T:%d I:%d", fd, code, id); | ||
106 | buffer_free(&msg); | ||
107 | } | ||
108 | |||
109 | void | ||
110 | send_string_attrs_request(int fd, u_int id, u_int code, char *s, | ||
111 | u_int len, Attrib *a) | ||
112 | { | ||
113 | Buffer msg; | ||
114 | |||
115 | buffer_init(&msg); | ||
116 | buffer_put_char(&msg, code); | ||
117 | buffer_put_int(&msg, id); | ||
118 | buffer_put_string(&msg, s, len); | ||
119 | encode_attrib(&msg, a); | ||
120 | send_msg(fd, &msg); | ||
121 | debug3("Sent message fd %d T:%d I:%d", fd, code, id); | ||
122 | buffer_free(&msg); | ||
123 | } | ||
124 | |||
125 | u_int | ||
126 | get_status(int fd, int expected_id) | ||
127 | { | ||
128 | Buffer msg; | ||
129 | u_int type, id, status; | ||
130 | |||
131 | buffer_init(&msg); | ||
132 | get_msg(fd, &msg); | ||
133 | type = buffer_get_char(&msg); | ||
134 | id = buffer_get_int(&msg); | ||
135 | |||
136 | if (id != expected_id) | ||
137 | fatal("ID mismatch (%d != %d)", id, expected_id); | ||
138 | if (type != SSH2_FXP_STATUS) | ||
139 | fatal("Expected SSH2_FXP_STATUS(%d) packet, got %d", | ||
140 | SSH2_FXP_STATUS, type); | ||
141 | |||
142 | status = buffer_get_int(&msg); | ||
143 | buffer_free(&msg); | ||
144 | |||
145 | debug3("SSH2_FXP_STATUS %d", status); | ||
146 | |||
147 | return(status); | ||
148 | } | ||
149 | |||
150 | char * | ||
151 | get_handle(int fd, u_int expected_id, u_int *len) | ||
152 | { | ||
153 | Buffer msg; | ||
154 | u_int type, id; | ||
155 | char *handle; | ||
156 | |||
157 | buffer_init(&msg); | ||
158 | get_msg(fd, &msg); | ||
159 | type = buffer_get_char(&msg); | ||
160 | id = buffer_get_int(&msg); | ||
161 | |||
162 | if (id != expected_id) | ||
163 | fatal("ID mismatch (%d != %d)", id, expected_id); | ||
164 | if (type == SSH2_FXP_STATUS) { | ||
165 | int status = buffer_get_int(&msg); | ||
166 | |||
167 | error("Couldn't get handle: %s", fx2txt(status)); | ||
168 | return(NULL); | ||
169 | } else if (type != SSH2_FXP_HANDLE) | ||
170 | fatal("Expected SSH2_FXP_HANDLE(%d) packet, got %d", | ||
171 | SSH2_FXP_HANDLE, type); | ||
172 | |||
173 | handle = buffer_get_string(&msg, len); | ||
174 | buffer_free(&msg); | ||
175 | |||
176 | return(handle); | ||
177 | } | ||
178 | |||
179 | Attrib * | ||
180 | get_decode_stat(int fd, u_int expected_id) | ||
181 | { | ||
182 | Buffer msg; | ||
183 | u_int type, id; | ||
184 | Attrib *a; | ||
185 | |||
186 | buffer_init(&msg); | ||
187 | get_msg(fd, &msg); | ||
188 | |||
189 | type = buffer_get_char(&msg); | ||
190 | id = buffer_get_int(&msg); | ||
191 | |||
192 | debug3("Received stat reply T:%d I:%d", type, id); | ||
193 | if (id != expected_id) | ||
194 | fatal("ID mismatch (%d != %d)", id, expected_id); | ||
195 | if (type == SSH2_FXP_STATUS) { | ||
196 | int status = buffer_get_int(&msg); | ||
197 | |||
198 | error("Couldn't stat remote file: %s", fx2txt(status)); | ||
199 | return(NULL); | ||
200 | } else if (type != SSH2_FXP_ATTRS) { | ||
201 | fatal("Expected SSH2_FXP_ATTRS(%d) packet, got %d", | ||
202 | SSH2_FXP_ATTRS, type); | ||
203 | } | ||
204 | a = decode_attrib(&msg); | ||
205 | buffer_free(&msg); | ||
206 | |||
207 | return(a); | ||
208 | } | ||
209 | |||
210 | int | ||
211 | do_init(int fd_in, int fd_out) | ||
212 | { | ||
213 | int type, version; | ||
214 | Buffer msg; | ||
215 | |||
216 | buffer_init(&msg); | ||
217 | buffer_put_char(&msg, SSH2_FXP_INIT); | ||
218 | buffer_put_int(&msg, SSH2_FILEXFER_VERSION); | ||
219 | send_msg(fd_out, &msg); | ||
220 | |||
221 | buffer_clear(&msg); | ||
222 | |||
223 | get_msg(fd_in, &msg); | ||
224 | |||
225 | /* Expecting a VERSION reply */ | ||
226 | if ((type = buffer_get_char(&msg)) != SSH2_FXP_VERSION) { | ||
227 | error("Invalid packet back from SSH2_FXP_INIT (type %d)", | ||
228 | type); | ||
229 | buffer_free(&msg); | ||
230 | return(-1); | ||
231 | } | ||
232 | version = buffer_get_int(&msg); | ||
233 | |||
234 | debug2("Remote version: %d", version); | ||
235 | |||
236 | /* Check for extensions */ | ||
237 | while (buffer_len(&msg) > 0) { | ||
238 | char *name = buffer_get_string(&msg, NULL); | ||
239 | char *value = buffer_get_string(&msg, NULL); | ||
240 | |||
241 | debug2("Init extension: \"%s\"", name); | ||
242 | xfree(name); | ||
243 | xfree(value); | ||
244 | } | ||
245 | |||
246 | buffer_free(&msg); | ||
247 | return(0); | ||
248 | } | ||
249 | |||
250 | int | ||
251 | do_close(int fd_in, int fd_out, char *handle, u_int handle_len) | ||
252 | { | ||
253 | u_int id, status; | ||
254 | Buffer msg; | ||
255 | |||
256 | buffer_init(&msg); | ||
257 | |||
258 | id = arc4random(); | ||
259 | buffer_put_char(&msg, SSH2_FXP_CLOSE); | ||
260 | buffer_put_int(&msg, id); | ||
261 | buffer_put_string(&msg, handle, handle_len); | ||
262 | send_msg(fd_out, &msg); | ||
263 | debug3("Sent message SSH2_FXP_CLOSE I:%d", id); | ||
264 | |||
265 | status = get_status(fd_in, id); | ||
266 | if (status != SSH2_FX_OK) | ||
267 | error("Couldn't close file: %s", fx2txt(status)); | ||
268 | |||
269 | buffer_free(&msg); | ||
270 | |||
271 | return(status); | ||
272 | } | ||
273 | |||
274 | int | ||
275 | do_ls(int fd_in, int fd_out, char *path) | ||
276 | { | ||
277 | Buffer msg; | ||
278 | u_int type, id, handle_len, i, expected_id; | ||
279 | char *handle; | ||
280 | |||
281 | id = arc4random(); | ||
282 | |||
283 | buffer_init(&msg); | ||
284 | buffer_put_char(&msg, SSH2_FXP_OPENDIR); | ||
285 | buffer_put_int(&msg, id); | ||
286 | buffer_put_cstring(&msg, path); | ||
287 | send_msg(fd_out, &msg); | ||
288 | |||
289 | buffer_clear(&msg); | ||
290 | |||
291 | handle = get_handle(fd_in, id, &handle_len); | ||
292 | if (handle == NULL) | ||
293 | return(-1); | ||
294 | |||
295 | for(;;) { | ||
296 | int count; | ||
297 | |||
298 | expected_id = ++id; | ||
299 | |||
300 | debug3("Sending SSH2_FXP_READDIR I:%d", id); | ||
301 | |||
302 | buffer_clear(&msg); | ||
303 | buffer_put_char(&msg, SSH2_FXP_READDIR); | ||
304 | buffer_put_int(&msg, id); | ||
305 | buffer_put_string(&msg, handle, handle_len); | ||
306 | send_msg(fd_out, &msg); | ||
307 | |||
308 | buffer_clear(&msg); | ||
309 | |||
310 | get_msg(fd_in, &msg); | ||
311 | |||
312 | type = buffer_get_char(&msg); | ||
313 | id = buffer_get_int(&msg); | ||
314 | |||
315 | debug3("Received reply T:%d I:%d", type, id); | ||
316 | |||
317 | if (id != expected_id) | ||
318 | fatal("ID mismatch (%d != %d)", id, expected_id); | ||
319 | |||
320 | if (type == SSH2_FXP_STATUS) { | ||
321 | int status = buffer_get_int(&msg); | ||
322 | |||
323 | debug3("Received SSH2_FXP_STATUS %d", status); | ||
324 | |||
325 | if (status == SSH2_FX_EOF) { | ||
326 | break; | ||
327 | } else { | ||
328 | error("Couldn't read directory: %s", | ||
329 | fx2txt(status)); | ||
330 | do_close(fd_in, fd_out, handle, handle_len); | ||
331 | return(NULL); | ||
332 | } | ||
333 | } else if (type != SSH2_FXP_NAME) | ||
334 | fatal("Expected SSH2_FXP_NAME(%d) packet, got %d", | ||
335 | SSH2_FXP_NAME, type); | ||
336 | |||
337 | count = buffer_get_int(&msg); | ||
338 | debug3("Received %i SSH2_FXP_NAME responses", count); | ||
339 | for(i = 0; i < count; i++) { | ||
340 | char *filename, *longname; | ||
341 | Attrib *a; | ||
342 | |||
343 | filename = buffer_get_string(&msg, NULL); | ||
344 | longname = buffer_get_string(&msg, NULL); | ||
345 | a = decode_attrib(&msg); | ||
346 | |||
347 | printf("%s\n", longname); | ||
348 | |||
349 | xfree(filename); | ||
350 | xfree(longname); | ||
351 | } | ||
352 | } | ||
353 | |||
354 | buffer_free(&msg); | ||
355 | do_close(fd_in, fd_out, handle, handle_len); | ||
356 | xfree(handle); | ||
357 | |||
358 | return(0); | ||
359 | } | ||
360 | |||
361 | int | ||
362 | do_rm(int fd_in, int fd_out, char *path) | ||
363 | { | ||
364 | u_int status, id; | ||
365 | |||
366 | debug2("Sending SSH2_FXP_REMOVE \"%s\"", path); | ||
367 | |||
368 | id = arc4random(); | ||
369 | send_string_request(fd_out, id, SSH2_FXP_REMOVE, path, strlen(path)); | ||
370 | status = get_status(fd_in, id); | ||
371 | if (status != SSH2_FX_OK) | ||
372 | error("Couldn't delete file: %s", fx2txt(status)); | ||
373 | return(status); | ||
374 | } | ||
375 | |||
376 | int | ||
377 | do_mkdir(int fd_in, int fd_out, char *path, Attrib *a) | ||
378 | { | ||
379 | u_int status, id; | ||
380 | |||
381 | id = arc4random(); | ||
382 | send_string_attrs_request(fd_out, id, SSH2_FXP_MKDIR, path, | ||
383 | strlen(path), a); | ||
384 | |||
385 | status = get_status(fd_in, id); | ||
386 | if (status != SSH2_FX_OK) | ||
387 | error("Couldn't create directory: %s", fx2txt(status)); | ||
388 | |||
389 | return(status); | ||
390 | } | ||
391 | |||
392 | int | ||
393 | do_rmdir(int fd_in, int fd_out, char *path) | ||
394 | { | ||
395 | u_int status, id; | ||
396 | |||
397 | id = arc4random(); | ||
398 | send_string_request(fd_out, id, SSH2_FXP_RMDIR, path, strlen(path)); | ||
399 | |||
400 | status = get_status(fd_in, id); | ||
401 | if (status != SSH2_FX_OK) | ||
402 | error("Couldn't remove directory: %s", fx2txt(status)); | ||
403 | |||
404 | return(status); | ||
405 | } | ||
406 | |||
407 | Attrib * | ||
408 | do_stat(int fd_in, int fd_out, char *path) | ||
409 | { | ||
410 | u_int id; | ||
411 | |||
412 | id = arc4random(); | ||
413 | send_string_request(fd_out, id, SSH2_FXP_STAT, path, strlen(path)); | ||
414 | return(get_decode_stat(fd_in, id)); | ||
415 | } | ||
416 | |||
417 | Attrib * | ||
418 | do_lstat(int fd_in, int fd_out, char *path) | ||
419 | { | ||
420 | u_int id; | ||
421 | |||
422 | id = arc4random(); | ||
423 | send_string_request(fd_out, id, SSH2_FXP_LSTAT, path, strlen(path)); | ||
424 | return(get_decode_stat(fd_in, id)); | ||
425 | } | ||
426 | |||
427 | Attrib * | ||
428 | do_fstat(int fd_in, int fd_out, char *handle, | ||
429 | u_int handle_len) | ||
430 | { | ||
431 | u_int id; | ||
432 | |||
433 | id = arc4random(); | ||
434 | send_string_request(fd_out, id, SSH2_FXP_FSTAT, handle, handle_len); | ||
435 | return(get_decode_stat(fd_in, id)); | ||
436 | } | ||
437 | |||
438 | int | ||
439 | do_setstat(int fd_in, int fd_out, char *path, Attrib *a) | ||
440 | { | ||
441 | u_int status, id; | ||
442 | |||
443 | id = arc4random(); | ||
444 | send_string_attrs_request(fd_out, id, SSH2_FXP_SETSTAT, path, | ||
445 | strlen(path), a); | ||
446 | |||
447 | status = get_status(fd_in, id); | ||
448 | if (status != SSH2_FX_OK) | ||
449 | error("Couldn't setstat on \"%s\": %s", path, | ||
450 | fx2txt(status)); | ||
451 | |||
452 | return(status); | ||
453 | } | ||
454 | |||
455 | int | ||
456 | do_fsetstat(int fd_in, int fd_out, char *handle, u_int handle_len, | ||
457 | Attrib *a) | ||
458 | { | ||
459 | u_int status, id; | ||
460 | |||
461 | id = arc4random(); | ||
462 | send_string_attrs_request(fd_out, id, SSH2_FXP_FSETSTAT, handle, | ||
463 | handle_len, a); | ||
464 | |||
465 | status = get_status(fd_in, id); | ||
466 | if (status != SSH2_FX_OK) | ||
467 | error("Couldn't fsetstat: %s", fx2txt(status)); | ||
468 | |||
469 | return(status); | ||
470 | } | ||
471 | |||
472 | char * | ||
473 | do_realpath(int fd_in, int fd_out, char *path) | ||
474 | { | ||
475 | Buffer msg; | ||
476 | u_int type, expected_id, count, id; | ||
477 | char *filename, *longname; | ||
478 | Attrib *a; | ||
479 | |||
480 | expected_id = id = arc4random(); | ||
481 | send_string_request(fd_out, id, SSH2_FXP_REALPATH, path, | ||
482 | strlen(path)); | ||
483 | |||
484 | buffer_init(&msg); | ||
485 | |||
486 | get_msg(fd_in, &msg); | ||
487 | type = buffer_get_char(&msg); | ||
488 | id = buffer_get_int(&msg); | ||
489 | |||
490 | if (id != expected_id) | ||
491 | fatal("ID mismatch (%d != %d)", id, expected_id); | ||
492 | |||
493 | if (type == SSH2_FXP_STATUS) { | ||
494 | u_int status = buffer_get_int(&msg); | ||
495 | |||
496 | error("Couldn't canonicalise: %s", fx2txt(status)); | ||
497 | return(NULL); | ||
498 | } else if (type != SSH2_FXP_NAME) | ||
499 | fatal("Expected SSH2_FXP_NAME(%d) packet, got %d", | ||
500 | SSH2_FXP_NAME, type); | ||
501 | |||
502 | count = buffer_get_int(&msg); | ||
503 | if (count != 1) | ||
504 | fatal("Got multiple names (%d) from SSH_FXP_REALPATH", count); | ||
505 | |||
506 | filename = buffer_get_string(&msg, NULL); | ||
507 | longname = buffer_get_string(&msg, NULL); | ||
508 | a = decode_attrib(&msg); | ||
509 | |||
510 | debug3("SSH_FXP_REALPATH %s -> %s", path, filename); | ||
511 | |||
512 | xfree(longname); | ||
513 | |||
514 | buffer_free(&msg); | ||
515 | |||
516 | return(filename); | ||
517 | } | ||
518 | |||
519 | int | ||
520 | do_rename(int fd_in, int fd_out, char *oldpath, char *newpath) | ||
521 | { | ||
522 | Buffer msg; | ||
523 | u_int status, id; | ||
524 | |||
525 | buffer_init(&msg); | ||
526 | |||
527 | /* Send rename request */ | ||
528 | id = arc4random(); | ||
529 | buffer_put_char(&msg, SSH2_FXP_RENAME); | ||
530 | buffer_put_int(&msg, id); | ||
531 | buffer_put_cstring(&msg, oldpath); | ||
532 | buffer_put_cstring(&msg, newpath); | ||
533 | send_msg(fd_out, &msg); | ||
534 | debug3("Sent message SSH2_FXP_RENAME \"%s\" -> \"%s\"", oldpath, | ||
535 | newpath); | ||
536 | buffer_free(&msg); | ||
537 | |||
538 | status = get_status(fd_in, id); | ||
539 | if (status != SSH2_FX_OK) | ||
540 | error("Couldn't rename file \"%s\" to \"%s\": %s", oldpath, newpath, | ||
541 | fx2txt(status)); | ||
542 | |||
543 | return(status); | ||
544 | } | ||
545 | |||
546 | int | ||
547 | do_download(int fd_in, int fd_out, char *remote_path, char *local_path, | ||
548 | int pflag) | ||
549 | { | ||
550 | int local_fd; | ||
551 | u_int expected_id, handle_len, mode, type, id; | ||
552 | u_int64_t offset; | ||
553 | char *handle; | ||
554 | Buffer msg; | ||
555 | Attrib junk, *a; | ||
556 | |||
557 | a = do_stat(fd_in, fd_out, remote_path); | ||
558 | if (a == NULL) | ||
559 | return(-1); | ||
560 | |||
561 | /* XXX: should we preserve set[ug]id? */ | ||
562 | if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) | ||
563 | mode = S_IWRITE | (a->perm & 0777); | ||
564 | else | ||
565 | mode = 0666; | ||
566 | |||
567 | local_fd = open(local_path, O_WRONLY | O_CREAT | O_TRUNC, mode); | ||
568 | if (local_fd == -1) { | ||
569 | error("Couldn't open local file \"%s\" for writing: %s", | ||
570 | local_path, strerror(errno)); | ||
571 | return(errno); | ||
572 | } | ||
573 | |||
574 | /* Override umask and utimes if asked */ | ||
575 | if (pflag && fchmod(local_fd, mode) == -1) | ||
576 | error("Couldn't set mode on \"%s\": %s", local_path, | ||
577 | strerror(errno)); | ||
578 | if (pflag && (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME)) { | ||
579 | struct timeval tv; | ||
580 | |||
581 | tv.tv_sec = a->atime; | ||
582 | tv.tv_usec = a->mtime; | ||
583 | if (utimes(local_path, &tv) == -1) | ||
584 | error("Can't set times on \"%s\": %s", local_path, | ||
585 | strerror(errno)); | ||
586 | } | ||
587 | |||
588 | buffer_init(&msg); | ||
589 | |||
590 | /* Send open request */ | ||
591 | id = arc4random(); | ||
592 | buffer_put_char(&msg, SSH2_FXP_OPEN); | ||
593 | buffer_put_int(&msg, id); | ||
594 | buffer_put_cstring(&msg, remote_path); | ||
595 | buffer_put_int(&msg, SSH2_FXF_READ); | ||
596 | attrib_clear(&junk); /* Send empty attributes */ | ||
597 | encode_attrib(&msg, &junk); | ||
598 | send_msg(fd_out, &msg); | ||
599 | debug3("Sent message SSH2_FXP_OPEN I:%d P:%s", id, remote_path); | ||
600 | |||
601 | handle = get_handle(fd_in, id, &handle_len); | ||
602 | if (handle == NULL) { | ||
603 | buffer_free(&msg); | ||
604 | close(local_fd); | ||
605 | return(-1); | ||
606 | } | ||
607 | |||
608 | /* Read from remote and write to local */ | ||
609 | offset = 0; | ||
610 | for(;;) { | ||
611 | u_int len; | ||
612 | char *data; | ||
613 | |||
614 | expected_id = ++id; | ||
615 | |||
616 | buffer_clear(&msg); | ||
617 | buffer_put_char(&msg, SSH2_FXP_READ); | ||
618 | buffer_put_int(&msg, id); | ||
619 | buffer_put_string(&msg, handle, handle_len); | ||
620 | buffer_put_int64(&msg, offset); | ||
621 | buffer_put_int(&msg, COPY_SIZE); | ||
622 | send_msg(fd_out, &msg); | ||
623 | debug3("Sent message SSH2_FXP_READ I:%d O:%llu S:%u", | ||
624 | id, offset, COPY_SIZE); | ||
625 | |||
626 | buffer_clear(&msg); | ||
627 | |||
628 | get_msg(fd_in, &msg); | ||
629 | type = buffer_get_char(&msg); | ||
630 | id = buffer_get_int(&msg); | ||
631 | debug3("Received reply T:%d I:%d", type, id); | ||
632 | if (id != expected_id) | ||
633 | fatal("ID mismatch (%d != %d)", id, expected_id); | ||
634 | if (type == SSH2_FXP_STATUS) { | ||
635 | int status = buffer_get_int(&msg); | ||
636 | |||
637 | if (status == SSH2_FX_EOF) | ||
638 | break; | ||
639 | else { | ||
640 | error("Couldn't read from remote " | ||
641 | "file \"%s\" : %s", remote_path, | ||
642 | fx2txt(status)); | ||
643 | do_close(fd_in, fd_out, handle, handle_len); | ||
644 | xfree(handle); | ||
645 | close(local_fd); | ||
646 | buffer_free(&msg); | ||
647 | return(status); | ||
648 | } | ||
649 | } else if (type != SSH2_FXP_DATA) { | ||
650 | fatal("Expected SSH2_FXP_DATA(%d) packet, got %d", | ||
651 | SSH2_FXP_DATA, type); | ||
652 | } | ||
653 | |||
654 | data = buffer_get_string(&msg, &len); | ||
655 | if (len > COPY_SIZE) | ||
656 | fatal("Received more data than asked for %d > %d", | ||
657 | len, COPY_SIZE); | ||
658 | |||
659 | debug3("In read loop, got %d offset %lld", len, offset); | ||
660 | if (atomicio(write, local_fd, data, len) != len) { | ||
661 | error("Couldn't write to \"%s\": %s", local_path, | ||
662 | strerror(errno)); | ||
663 | do_close(fd_in, fd_out, handle, handle_len); | ||
664 | xfree(handle); | ||
665 | close(local_fd); | ||
666 | xfree(data); | ||
667 | buffer_free(&msg); | ||
668 | return(-1); | ||
669 | } | ||
670 | |||
671 | offset += len; | ||
672 | xfree(data); | ||
673 | } | ||
674 | xfree(handle); | ||
675 | buffer_free(&msg); | ||
676 | close(local_fd); | ||
677 | |||
678 | return(do_close(fd_in, fd_out, handle, handle_len)); | ||
679 | } | ||
680 | |||
681 | int | ||
682 | do_upload(int fd_in, int fd_out, char *local_path, char *remote_path, | ||
683 | int pflag) | ||
684 | { | ||
685 | int local_fd; | ||
686 | u_int handle_len, id; | ||
687 | u_int64_t offset; | ||
688 | char *handle; | ||
689 | Buffer msg; | ||
690 | struct stat sb; | ||
691 | Attrib a; | ||
692 | |||
693 | if ((local_fd = open(local_path, O_RDONLY, 0)) == -1) { | ||
694 | error("Couldn't open local file \"%s\" for reading: %s", | ||
695 | local_path, strerror(errno)); | ||
696 | return(-1); | ||
697 | } | ||
698 | if (fstat(local_fd, &sb) == -1) { | ||
699 | error("Couldn't fstat local file \"%s\": %s", | ||
700 | local_path, strerror(errno)); | ||
701 | close(local_fd); | ||
702 | return(-1); | ||
703 | } | ||
704 | stat_to_attrib(&sb, &a); | ||
705 | |||
706 | a.flags &= ~SSH2_FILEXFER_ATTR_SIZE; | ||
707 | a.flags &= ~SSH2_FILEXFER_ATTR_UIDGID; | ||
708 | a.perm &= 0777; | ||
709 | if (!pflag) | ||
710 | a.flags &= ~SSH2_FILEXFER_ATTR_ACMODTIME; | ||
711 | |||
712 | buffer_init(&msg); | ||
713 | |||
714 | /* Send open request */ | ||
715 | id = arc4random(); | ||
716 | buffer_put_char(&msg, SSH2_FXP_OPEN); | ||
717 | buffer_put_int(&msg, id); | ||
718 | buffer_put_cstring(&msg, remote_path); | ||
719 | buffer_put_int(&msg, SSH2_FXF_WRITE|SSH2_FXF_CREAT|SSH2_FXF_TRUNC); | ||
720 | encode_attrib(&msg, &a); | ||
721 | send_msg(fd_out, &msg); | ||
722 | debug3("Sent message SSH2_FXP_OPEN I:%d P:%s", id, remote_path); | ||
723 | |||
724 | buffer_clear(&msg); | ||
725 | |||
726 | handle = get_handle(fd_in, id, &handle_len); | ||
727 | if (handle == NULL) { | ||
728 | close(local_fd); | ||
729 | buffer_free(&msg); | ||
730 | return(-1); | ||
731 | } | ||
732 | |||
733 | /* Override umask and utimes if asked */ | ||
734 | if (pflag) | ||
735 | do_fsetstat(fd_in, fd_out, handle, handle_len, &a); | ||
736 | |||
737 | /* Read from local and write to remote */ | ||
738 | offset = 0; | ||
739 | for(;;) { | ||
740 | int len; | ||
741 | char data[COPY_SIZE]; | ||
742 | u_int status; | ||
743 | |||
744 | /* | ||
745 | * Can't use atomicio here because it returns 0 on EOF, thus losing | ||
746 | * the last block of the file | ||
747 | */ | ||
748 | do | ||
749 | len = read(local_fd, data, COPY_SIZE); | ||
750 | while ((len == -1) && (errno == EINTR || errno == EAGAIN)); | ||
751 | |||
752 | if (len == -1) | ||
753 | fatal("Couldn't read from \"%s\": %s", local_path, | ||
754 | strerror(errno)); | ||
755 | if (len == 0) | ||
756 | break; | ||
757 | |||
758 | buffer_clear(&msg); | ||
759 | buffer_put_char(&msg, SSH2_FXP_WRITE); | ||
760 | buffer_put_int(&msg, ++id); | ||
761 | buffer_put_string(&msg, handle, handle_len); | ||
762 | buffer_put_int64(&msg, offset); | ||
763 | buffer_put_string(&msg, data, len); | ||
764 | send_msg(fd_out, &msg); | ||
765 | debug3("Sent message SSH2_FXP_WRITE I:%d O:%llu S:%u", | ||
766 | id, offset, len); | ||
767 | |||
768 | status = get_status(fd_in, id); | ||
769 | if (status != SSH2_FX_OK) { | ||
770 | error("Couldn't write to remote file \"%s\": %s", | ||
771 | remote_path, fx2txt(status)); | ||
772 | do_close(fd_in, fd_out, handle, handle_len); | ||
773 | xfree(handle); | ||
774 | close(local_fd); | ||
775 | return(-1); | ||
776 | } | ||
777 | debug3("In write loop, got %d offset %lld", len, offset); | ||
778 | |||
779 | offset += len; | ||
780 | } | ||
781 | xfree(handle); | ||
782 | buffer_free(&msg); | ||
783 | |||
784 | if (close(local_fd) == -1) { | ||
785 | error("Couldn't close local file \"%s\": %s", local_path, | ||
786 | strerror(errno)); | ||
787 | do_close(fd_in, fd_out, handle, handle_len); | ||
788 | return(-1); | ||
789 | } | ||
790 | |||
791 | return(do_close(fd_in, fd_out, handle, handle_len)); | ||
792 | } | ||