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61e96248 | 1 | /* |
ab3932ab | 2 | * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org> |
61e96248 | 3 | * |
ab3932ab | 4 | * Permission to use, copy, modify, and distribute this software for any |
5 | * purpose with or without fee is hereby granted, provided that the above | |
6 | * copyright notice and this permission notice appear in all copies. | |
61e96248 | 7 | * |
ab3932ab | 8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
61e96248 | 15 | */ |
16 | ||
17 | /* XXX: memleaks */ | |
18 | /* XXX: signed vs unsigned */ | |
22e6c827 | 19 | /* XXX: remove all logging, only return status codes */ |
61e96248 | 20 | /* XXX: copy between two remote sites */ |
21 | ||
22 | #include "includes.h" | |
6e007f08 | 23 | RCSID("$OpenBSD: sftp-client.c,v 1.50 2004/06/03 12:22:20 pedro Exp $"); |
c25d3df7 | 24 | |
9fd2a215 | 25 | #include "openbsd-compat/sys-queue.h" |
61e96248 | 26 | |
61e96248 | 27 | #include "buffer.h" |
28 | #include "bufaux.h" | |
29 | #include "getput.h" | |
30 | #include "xmalloc.h" | |
31 | #include "log.h" | |
32 | #include "atomicio.h" | |
b65c3807 | 33 | #include "progressmeter.h" |
61e96248 | 34 | |
35 | #include "sftp.h" | |
36 | #include "sftp-common.h" | |
37 | #include "sftp-client.h" | |
38 | ||
0e5de6f8 | 39 | extern volatile sig_atomic_t interrupted; |
b65c3807 | 40 | extern int showprogress; |
41 | ||
c25d3df7 | 42 | /* Minimum amount of data to read at at time */ |
43 | #define MIN_READ_SIZE 512 | |
44 | ||
bf0bf24b | 45 | /* Maximum packet size */ |
46 | #define MAX_MSG_LENGTH (256 * 1024) | |
47 | ||
22e6c827 | 48 | struct sftp_conn { |
49 | int fd_in; | |
50 | int fd_out; | |
51 | u_int transfer_buflen; | |
52 | u_int num_requests; | |
53 | u_int version; | |
54 | u_int msg_id; | |
55 | }; | |
9c5a8165 | 56 | |
396c147e | 57 | static void |
61e96248 | 58 | send_msg(int fd, Buffer *m) |
59 | { | |
bf0bf24b | 60 | u_char mlen[4]; |
61 | ||
62 | if (buffer_len(m) > MAX_MSG_LENGTH) | |
63 | fatal("Outbound message too long %u", buffer_len(m)); | |
61e96248 | 64 | |
bf0bf24b | 65 | /* Send length first */ |
66 | PUT_32BIT(mlen, buffer_len(m)); | |
dc54438a | 67 | if (atomicio(vwrite, fd, mlen, sizeof(mlen)) <= 0) |
bf0bf24b | 68 | fatal("Couldn't send packet: %s", strerror(errno)); |
61e96248 | 69 | |
dc54438a | 70 | if (atomicio(vwrite, fd, buffer_ptr(m), buffer_len(m)) <= 0) |
61e96248 | 71 | fatal("Couldn't send packet: %s", strerror(errno)); |
72 | ||
bf0bf24b | 73 | buffer_clear(m); |
61e96248 | 74 | } |
75 | ||
396c147e | 76 | static void |
61e96248 | 77 | get_msg(int fd, Buffer *m) |
78 | { | |
bf0bf24b | 79 | ssize_t len; |
80 | u_int msg_len; | |
61e96248 | 81 | |
bf0bf24b | 82 | buffer_append_space(m, 4); |
83 | len = atomicio(read, fd, buffer_ptr(m), 4); | |
bb6da70f | 84 | if (len == 0) |
85 | fatal("Connection closed"); | |
86 | else if (len == -1) | |
61e96248 | 87 | fatal("Couldn't read packet: %s", strerror(errno)); |
88 | ||
bf0bf24b | 89 | msg_len = buffer_get_int(m); |
90 | if (msg_len > MAX_MSG_LENGTH) | |
9906a836 | 91 | fatal("Received message too long %u", msg_len); |
61e96248 | 92 | |
bf0bf24b | 93 | buffer_append_space(m, msg_len); |
94 | len = atomicio(read, fd, buffer_ptr(m), msg_len); | |
95 | if (len == 0) | |
96 | fatal("Connection closed"); | |
97 | else if (len == -1) | |
98 | fatal("Read packet: %s", strerror(errno)); | |
61e96248 | 99 | } |
100 | ||
396c147e | 101 | static void |
61e96248 | 102 | send_string_request(int fd, u_int id, u_int code, char *s, |
103 | u_int len) | |
104 | { | |
105 | Buffer msg; | |
106 | ||
107 | buffer_init(&msg); | |
108 | buffer_put_char(&msg, code); | |
109 | buffer_put_int(&msg, id); | |
110 | buffer_put_string(&msg, s, len); | |
111 | send_msg(fd, &msg); | |
9906a836 | 112 | debug3("Sent message fd %d T:%u I:%u", fd, code, id); |
61e96248 | 113 | buffer_free(&msg); |
114 | } | |
115 | ||
396c147e | 116 | static void |
61e96248 | 117 | send_string_attrs_request(int fd, u_int id, u_int code, char *s, |
118 | u_int len, Attrib *a) | |
119 | { | |
120 | Buffer msg; | |
121 | ||
122 | buffer_init(&msg); | |
123 | buffer_put_char(&msg, code); | |
124 | buffer_put_int(&msg, id); | |
125 | buffer_put_string(&msg, s, len); | |
126 | encode_attrib(&msg, a); | |
127 | send_msg(fd, &msg); | |
9906a836 | 128 | debug3("Sent message fd %d T:%u I:%u", fd, code, id); |
61e96248 | 129 | buffer_free(&msg); |
130 | } | |
131 | ||
396c147e | 132 | static u_int |
9906a836 | 133 | get_status(int fd, u_int expected_id) |
61e96248 | 134 | { |
135 | Buffer msg; | |
136 | u_int type, id, status; | |
137 | ||
138 | buffer_init(&msg); | |
139 | get_msg(fd, &msg); | |
140 | type = buffer_get_char(&msg); | |
141 | id = buffer_get_int(&msg); | |
142 | ||
143 | if (id != expected_id) | |
9906a836 | 144 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 145 | if (type != SSH2_FXP_STATUS) |
9906a836 | 146 | fatal("Expected SSH2_FXP_STATUS(%u) packet, got %u", |
61e96248 | 147 | SSH2_FXP_STATUS, type); |
148 | ||
149 | status = buffer_get_int(&msg); | |
150 | buffer_free(&msg); | |
151 | ||
9906a836 | 152 | debug3("SSH2_FXP_STATUS %u", status); |
61e96248 | 153 | |
154 | return(status); | |
155 | } | |
156 | ||
396c147e | 157 | static char * |
61e96248 | 158 | get_handle(int fd, u_int expected_id, u_int *len) |
159 | { | |
160 | Buffer msg; | |
161 | u_int type, id; | |
162 | char *handle; | |
163 | ||
164 | buffer_init(&msg); | |
165 | get_msg(fd, &msg); | |
166 | type = buffer_get_char(&msg); | |
167 | id = buffer_get_int(&msg); | |
168 | ||
169 | if (id != expected_id) | |
9906a836 | 170 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 171 | if (type == SSH2_FXP_STATUS) { |
172 | int status = buffer_get_int(&msg); | |
173 | ||
174 | error("Couldn't get handle: %s", fx2txt(status)); | |
175 | return(NULL); | |
176 | } else if (type != SSH2_FXP_HANDLE) | |
9906a836 | 177 | fatal("Expected SSH2_FXP_HANDLE(%u) packet, got %u", |
61e96248 | 178 | SSH2_FXP_HANDLE, type); |
179 | ||
180 | handle = buffer_get_string(&msg, len); | |
181 | buffer_free(&msg); | |
182 | ||
183 | return(handle); | |
184 | } | |
185 | ||
396c147e | 186 | static Attrib * |
d50d9b63 | 187 | get_decode_stat(int fd, u_int expected_id, int quiet) |
61e96248 | 188 | { |
189 | Buffer msg; | |
190 | u_int type, id; | |
191 | Attrib *a; | |
192 | ||
193 | buffer_init(&msg); | |
194 | get_msg(fd, &msg); | |
195 | ||
196 | type = buffer_get_char(&msg); | |
197 | id = buffer_get_int(&msg); | |
198 | ||
9906a836 | 199 | debug3("Received stat reply T:%u I:%u", type, id); |
61e96248 | 200 | if (id != expected_id) |
9906a836 | 201 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 202 | if (type == SSH2_FXP_STATUS) { |
203 | int status = buffer_get_int(&msg); | |
204 | ||
d50d9b63 | 205 | if (quiet) |
206 | debug("Couldn't stat remote file: %s", fx2txt(status)); | |
207 | else | |
208 | error("Couldn't stat remote file: %s", fx2txt(status)); | |
61e96248 | 209 | return(NULL); |
210 | } else if (type != SSH2_FXP_ATTRS) { | |
9906a836 | 211 | fatal("Expected SSH2_FXP_ATTRS(%u) packet, got %u", |
61e96248 | 212 | SSH2_FXP_ATTRS, type); |
213 | } | |
214 | a = decode_attrib(&msg); | |
215 | buffer_free(&msg); | |
216 | ||
217 | return(a); | |
218 | } | |
219 | ||
22e6c827 | 220 | struct sftp_conn * |
221 | do_init(int fd_in, int fd_out, u_int transfer_buflen, u_int num_requests) | |
61e96248 | 222 | { |
9906a836 | 223 | u_int type; |
224 | int version; | |
61e96248 | 225 | Buffer msg; |
22e6c827 | 226 | struct sftp_conn *ret; |
61e96248 | 227 | |
228 | buffer_init(&msg); | |
229 | buffer_put_char(&msg, SSH2_FXP_INIT); | |
230 | buffer_put_int(&msg, SSH2_FILEXFER_VERSION); | |
231 | send_msg(fd_out, &msg); | |
232 | ||
233 | buffer_clear(&msg); | |
234 | ||
235 | get_msg(fd_in, &msg); | |
236 | ||
2b87da3b | 237 | /* Expecting a VERSION reply */ |
61e96248 | 238 | if ((type = buffer_get_char(&msg)) != SSH2_FXP_VERSION) { |
9906a836 | 239 | error("Invalid packet back from SSH2_FXP_INIT (type %u)", |
61e96248 | 240 | type); |
241 | buffer_free(&msg); | |
22e6c827 | 242 | return(NULL); |
61e96248 | 243 | } |
244 | version = buffer_get_int(&msg); | |
245 | ||
246 | debug2("Remote version: %d", version); | |
247 | ||
248 | /* Check for extensions */ | |
249 | while (buffer_len(&msg) > 0) { | |
250 | char *name = buffer_get_string(&msg, NULL); | |
251 | char *value = buffer_get_string(&msg, NULL); | |
252 | ||
253 | debug2("Init extension: \"%s\"", name); | |
254 | xfree(name); | |
255 | xfree(value); | |
256 | } | |
257 | ||
258 | buffer_free(&msg); | |
3a7fe5ba | 259 | |
22e6c827 | 260 | ret = xmalloc(sizeof(*ret)); |
261 | ret->fd_in = fd_in; | |
262 | ret->fd_out = fd_out; | |
263 | ret->transfer_buflen = transfer_buflen; | |
264 | ret->num_requests = num_requests; | |
265 | ret->version = version; | |
266 | ret->msg_id = 1; | |
267 | ||
268 | /* Some filexfer v.0 servers don't support large packets */ | |
269 | if (version == 0) | |
92053302 | 270 | ret->transfer_buflen = MIN(ret->transfer_buflen, 20480); |
22e6c827 | 271 | |
272 | return(ret); | |
273 | } | |
274 | ||
275 | u_int | |
276 | sftp_proto_version(struct sftp_conn *conn) | |
277 | { | |
278 | return(conn->version); | |
61e96248 | 279 | } |
280 | ||
281 | int | |
22e6c827 | 282 | do_close(struct sftp_conn *conn, char *handle, u_int handle_len) |
61e96248 | 283 | { |
284 | u_int id, status; | |
285 | Buffer msg; | |
286 | ||
287 | buffer_init(&msg); | |
288 | ||
22e6c827 | 289 | id = conn->msg_id++; |
61e96248 | 290 | buffer_put_char(&msg, SSH2_FXP_CLOSE); |
291 | buffer_put_int(&msg, id); | |
292 | buffer_put_string(&msg, handle, handle_len); | |
22e6c827 | 293 | send_msg(conn->fd_out, &msg); |
9906a836 | 294 | debug3("Sent message SSH2_FXP_CLOSE I:%u", id); |
61e96248 | 295 | |
22e6c827 | 296 | status = get_status(conn->fd_in, id); |
61e96248 | 297 | if (status != SSH2_FX_OK) |
298 | error("Couldn't close file: %s", fx2txt(status)); | |
299 | ||
300 | buffer_free(&msg); | |
301 | ||
302 | return(status); | |
303 | } | |
304 | ||
2e4fb373 | 305 | |
396c147e | 306 | static int |
22e6c827 | 307 | do_lsreaddir(struct sftp_conn *conn, char *path, int printflag, |
2e4fb373 | 308 | SFTP_DIRENT ***dir) |
61e96248 | 309 | { |
310 | Buffer msg; | |
4cb5d598 | 311 | u_int type, id, handle_len, i, expected_id, ents = 0; |
61e96248 | 312 | char *handle; |
313 | ||
22e6c827 | 314 | id = conn->msg_id++; |
61e96248 | 315 | |
316 | buffer_init(&msg); | |
317 | buffer_put_char(&msg, SSH2_FXP_OPENDIR); | |
318 | buffer_put_int(&msg, id); | |
319 | buffer_put_cstring(&msg, path); | |
22e6c827 | 320 | send_msg(conn->fd_out, &msg); |
61e96248 | 321 | |
322 | buffer_clear(&msg); | |
323 | ||
22e6c827 | 324 | handle = get_handle(conn->fd_in, id, &handle_len); |
61e96248 | 325 | if (handle == NULL) |
326 | return(-1); | |
327 | ||
2e4fb373 | 328 | if (dir) { |
329 | ents = 0; | |
330 | *dir = xmalloc(sizeof(**dir)); | |
331 | (*dir)[0] = NULL; | |
332 | } | |
2e4fb373 | 333 | |
0e5de6f8 | 334 | for (; !interrupted;) { |
61e96248 | 335 | int count; |
336 | ||
22e6c827 | 337 | id = expected_id = conn->msg_id++; |
61e96248 | 338 | |
9906a836 | 339 | debug3("Sending SSH2_FXP_READDIR I:%u", id); |
61e96248 | 340 | |
341 | buffer_clear(&msg); | |
342 | buffer_put_char(&msg, SSH2_FXP_READDIR); | |
343 | buffer_put_int(&msg, id); | |
344 | buffer_put_string(&msg, handle, handle_len); | |
22e6c827 | 345 | send_msg(conn->fd_out, &msg); |
61e96248 | 346 | |
347 | buffer_clear(&msg); | |
348 | ||
22e6c827 | 349 | get_msg(conn->fd_in, &msg); |
61e96248 | 350 | |
351 | type = buffer_get_char(&msg); | |
352 | id = buffer_get_int(&msg); | |
353 | ||
9906a836 | 354 | debug3("Received reply T:%u I:%u", type, id); |
61e96248 | 355 | |
356 | if (id != expected_id) | |
9906a836 | 357 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 358 | |
359 | if (type == SSH2_FXP_STATUS) { | |
360 | int status = buffer_get_int(&msg); | |
361 | ||
362 | debug3("Received SSH2_FXP_STATUS %d", status); | |
363 | ||
364 | if (status == SSH2_FX_EOF) { | |
365 | break; | |
366 | } else { | |
367 | error("Couldn't read directory: %s", | |
368 | fx2txt(status)); | |
22e6c827 | 369 | do_close(conn, handle, handle_len); |
3e2f2431 | 370 | xfree(handle); |
b655a207 | 371 | return(status); |
61e96248 | 372 | } |
373 | } else if (type != SSH2_FXP_NAME) | |
9906a836 | 374 | fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", |
61e96248 | 375 | SSH2_FXP_NAME, type); |
376 | ||
377 | count = buffer_get_int(&msg); | |
0426a3b4 | 378 | if (count == 0) |
379 | break; | |
380 | debug3("Received %d SSH2_FXP_NAME responses", count); | |
184eed6a | 381 | for (i = 0; i < count; i++) { |
61e96248 | 382 | char *filename, *longname; |
383 | Attrib *a; | |
384 | ||
385 | filename = buffer_get_string(&msg, NULL); | |
386 | longname = buffer_get_string(&msg, NULL); | |
387 | a = decode_attrib(&msg); | |
388 | ||
2e4fb373 | 389 | if (printflag) |
390 | printf("%s\n", longname); | |
391 | ||
392 | if (dir) { | |
cd332296 | 393 | *dir = xrealloc(*dir, sizeof(**dir) * |
2e4fb373 | 394 | (ents + 2)); |
395 | (*dir)[ents] = xmalloc(sizeof(***dir)); | |
396 | (*dir)[ents]->filename = xstrdup(filename); | |
397 | (*dir)[ents]->longname = xstrdup(longname); | |
398 | memcpy(&(*dir)[ents]->a, a, sizeof(*a)); | |
399 | (*dir)[++ents] = NULL; | |
400 | } | |
61e96248 | 401 | |
402 | xfree(filename); | |
403 | xfree(longname); | |
404 | } | |
405 | } | |
406 | ||
407 | buffer_free(&msg); | |
22e6c827 | 408 | do_close(conn, handle, handle_len); |
61e96248 | 409 | xfree(handle); |
410 | ||
0e5de6f8 | 411 | /* Don't return partial matches on interrupt */ |
412 | if (interrupted && dir != NULL && *dir != NULL) { | |
413 | free_sftp_dirents(*dir); | |
414 | *dir = xmalloc(sizeof(**dir)); | |
415 | **dir = NULL; | |
416 | } | |
417 | ||
61e96248 | 418 | return(0); |
419 | } | |
420 | ||
2e4fb373 | 421 | int |
22e6c827 | 422 | do_readdir(struct sftp_conn *conn, char *path, SFTP_DIRENT ***dir) |
2e4fb373 | 423 | { |
22e6c827 | 424 | return(do_lsreaddir(conn, path, 0, dir)); |
2e4fb373 | 425 | } |
426 | ||
427 | void free_sftp_dirents(SFTP_DIRENT **s) | |
428 | { | |
429 | int i; | |
184eed6a | 430 | |
431 | for (i = 0; s[i]; i++) { | |
2e4fb373 | 432 | xfree(s[i]->filename); |
433 | xfree(s[i]->longname); | |
434 | xfree(s[i]); | |
435 | } | |
436 | xfree(s); | |
437 | } | |
438 | ||
61e96248 | 439 | int |
22e6c827 | 440 | do_rm(struct sftp_conn *conn, char *path) |
61e96248 | 441 | { |
442 | u_int status, id; | |
443 | ||
444 | debug2("Sending SSH2_FXP_REMOVE \"%s\"", path); | |
445 | ||
22e6c827 | 446 | id = conn->msg_id++; |
762715ce | 447 | send_string_request(conn->fd_out, id, SSH2_FXP_REMOVE, path, |
22e6c827 | 448 | strlen(path)); |
449 | status = get_status(conn->fd_in, id); | |
61e96248 | 450 | if (status != SSH2_FX_OK) |
451 | error("Couldn't delete file: %s", fx2txt(status)); | |
452 | return(status); | |
453 | } | |
454 | ||
455 | int | |
22e6c827 | 456 | do_mkdir(struct sftp_conn *conn, char *path, Attrib *a) |
61e96248 | 457 | { |
458 | u_int status, id; | |
459 | ||
22e6c827 | 460 | id = conn->msg_id++; |
461 | send_string_attrs_request(conn->fd_out, id, SSH2_FXP_MKDIR, path, | |
61e96248 | 462 | strlen(path), a); |
463 | ||
22e6c827 | 464 | status = get_status(conn->fd_in, id); |
61e96248 | 465 | if (status != SSH2_FX_OK) |
466 | error("Couldn't create directory: %s", fx2txt(status)); | |
467 | ||
468 | return(status); | |
469 | } | |
470 | ||
471 | int | |
22e6c827 | 472 | do_rmdir(struct sftp_conn *conn, char *path) |
61e96248 | 473 | { |
474 | u_int status, id; | |
475 | ||
22e6c827 | 476 | id = conn->msg_id++; |
477 | send_string_request(conn->fd_out, id, SSH2_FXP_RMDIR, path, | |
478 | strlen(path)); | |
61e96248 | 479 | |
22e6c827 | 480 | status = get_status(conn->fd_in, id); |
61e96248 | 481 | if (status != SSH2_FX_OK) |
482 | error("Couldn't remove directory: %s", fx2txt(status)); | |
483 | ||
484 | return(status); | |
485 | } | |
486 | ||
487 | Attrib * | |
22e6c827 | 488 | do_stat(struct sftp_conn *conn, char *path, int quiet) |
61e96248 | 489 | { |
490 | u_int id; | |
491 | ||
22e6c827 | 492 | id = conn->msg_id++; |
493 | ||
762715ce | 494 | send_string_request(conn->fd_out, id, |
495 | conn->version == 0 ? SSH2_FXP_STAT_VERSION_0 : SSH2_FXP_STAT, | |
22e6c827 | 496 | path, strlen(path)); |
497 | ||
498 | return(get_decode_stat(conn->fd_in, id, quiet)); | |
61e96248 | 499 | } |
500 | ||
501 | Attrib * | |
22e6c827 | 502 | do_lstat(struct sftp_conn *conn, char *path, int quiet) |
61e96248 | 503 | { |
504 | u_int id; | |
505 | ||
22e6c827 | 506 | if (conn->version == 0) { |
507 | if (quiet) | |
508 | debug("Server version does not support lstat operation"); | |
509 | else | |
bbe88b6d | 510 | logit("Server version does not support lstat operation"); |
9c74a24d | 511 | return(do_stat(conn, path, quiet)); |
22e6c827 | 512 | } |
513 | ||
514 | id = conn->msg_id++; | |
515 | send_string_request(conn->fd_out, id, SSH2_FXP_LSTAT, path, | |
516 | strlen(path)); | |
517 | ||
518 | return(get_decode_stat(conn->fd_in, id, quiet)); | |
61e96248 | 519 | } |
520 | ||
521 | Attrib * | |
22e6c827 | 522 | do_fstat(struct sftp_conn *conn, char *handle, u_int handle_len, int quiet) |
61e96248 | 523 | { |
524 | u_int id; | |
525 | ||
22e6c827 | 526 | id = conn->msg_id++; |
527 | send_string_request(conn->fd_out, id, SSH2_FXP_FSTAT, handle, | |
528 | handle_len); | |
529 | ||
530 | return(get_decode_stat(conn->fd_in, id, quiet)); | |
61e96248 | 531 | } |
532 | ||
533 | int | |
22e6c827 | 534 | do_setstat(struct sftp_conn *conn, char *path, Attrib *a) |
61e96248 | 535 | { |
536 | u_int status, id; | |
537 | ||
22e6c827 | 538 | id = conn->msg_id++; |
539 | send_string_attrs_request(conn->fd_out, id, SSH2_FXP_SETSTAT, path, | |
61e96248 | 540 | strlen(path), a); |
541 | ||
22e6c827 | 542 | status = get_status(conn->fd_in, id); |
61e96248 | 543 | if (status != SSH2_FX_OK) |
544 | error("Couldn't setstat on \"%s\": %s", path, | |
545 | fx2txt(status)); | |
546 | ||
547 | return(status); | |
548 | } | |
549 | ||
550 | int | |
22e6c827 | 551 | do_fsetstat(struct sftp_conn *conn, char *handle, u_int handle_len, |
61e96248 | 552 | Attrib *a) |
553 | { | |
554 | u_int status, id; | |
555 | ||
22e6c827 | 556 | id = conn->msg_id++; |
557 | send_string_attrs_request(conn->fd_out, id, SSH2_FXP_FSETSTAT, handle, | |
61e96248 | 558 | handle_len, a); |
559 | ||
22e6c827 | 560 | status = get_status(conn->fd_in, id); |
61e96248 | 561 | if (status != SSH2_FX_OK) |
562 | error("Couldn't fsetstat: %s", fx2txt(status)); | |
563 | ||
564 | return(status); | |
565 | } | |
566 | ||
567 | char * | |
22e6c827 | 568 | do_realpath(struct sftp_conn *conn, char *path) |
61e96248 | 569 | { |
570 | Buffer msg; | |
571 | u_int type, expected_id, count, id; | |
572 | char *filename, *longname; | |
573 | Attrib *a; | |
574 | ||
22e6c827 | 575 | expected_id = id = conn->msg_id++; |
576 | send_string_request(conn->fd_out, id, SSH2_FXP_REALPATH, path, | |
577 | strlen(path)); | |
61e96248 | 578 | |
579 | buffer_init(&msg); | |
580 | ||
22e6c827 | 581 | get_msg(conn->fd_in, &msg); |
61e96248 | 582 | type = buffer_get_char(&msg); |
583 | id = buffer_get_int(&msg); | |
584 | ||
585 | if (id != expected_id) | |
9906a836 | 586 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 587 | |
588 | if (type == SSH2_FXP_STATUS) { | |
589 | u_int status = buffer_get_int(&msg); | |
590 | ||
591 | error("Couldn't canonicalise: %s", fx2txt(status)); | |
592 | return(NULL); | |
593 | } else if (type != SSH2_FXP_NAME) | |
9906a836 | 594 | fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", |
61e96248 | 595 | SSH2_FXP_NAME, type); |
596 | ||
597 | count = buffer_get_int(&msg); | |
598 | if (count != 1) | |
599 | fatal("Got multiple names (%d) from SSH_FXP_REALPATH", count); | |
600 | ||
601 | filename = buffer_get_string(&msg, NULL); | |
602 | longname = buffer_get_string(&msg, NULL); | |
603 | a = decode_attrib(&msg); | |
604 | ||
605 | debug3("SSH_FXP_REALPATH %s -> %s", path, filename); | |
606 | ||
607 | xfree(longname); | |
608 | ||
609 | buffer_free(&msg); | |
610 | ||
611 | return(filename); | |
612 | } | |
613 | ||
614 | int | |
22e6c827 | 615 | do_rename(struct sftp_conn *conn, char *oldpath, char *newpath) |
61e96248 | 616 | { |
617 | Buffer msg; | |
618 | u_int status, id; | |
619 | ||
620 | buffer_init(&msg); | |
621 | ||
622 | /* Send rename request */ | |
22e6c827 | 623 | id = conn->msg_id++; |
61e96248 | 624 | buffer_put_char(&msg, SSH2_FXP_RENAME); |
625 | buffer_put_int(&msg, id); | |
626 | buffer_put_cstring(&msg, oldpath); | |
627 | buffer_put_cstring(&msg, newpath); | |
22e6c827 | 628 | send_msg(conn->fd_out, &msg); |
61e96248 | 629 | debug3("Sent message SSH2_FXP_RENAME \"%s\" -> \"%s\"", oldpath, |
630 | newpath); | |
631 | buffer_free(&msg); | |
632 | ||
22e6c827 | 633 | status = get_status(conn->fd_in, id); |
61e96248 | 634 | if (status != SSH2_FX_OK) |
22e6c827 | 635 | error("Couldn't rename file \"%s\" to \"%s\": %s", oldpath, |
636 | newpath, fx2txt(status)); | |
61e96248 | 637 | |
638 | return(status); | |
639 | } | |
640 | ||
3a7fe5ba | 641 | int |
22e6c827 | 642 | do_symlink(struct sftp_conn *conn, char *oldpath, char *newpath) |
3a7fe5ba | 643 | { |
644 | Buffer msg; | |
645 | u_int status, id; | |
646 | ||
22e6c827 | 647 | if (conn->version < 3) { |
648 | error("This server does not support the symlink operation"); | |
649 | return(SSH2_FX_OP_UNSUPPORTED); | |
650 | } | |
651 | ||
3a7fe5ba | 652 | buffer_init(&msg); |
653 | ||
b093b499 | 654 | /* Send symlink request */ |
22e6c827 | 655 | id = conn->msg_id++; |
3a7fe5ba | 656 | buffer_put_char(&msg, SSH2_FXP_SYMLINK); |
657 | buffer_put_int(&msg, id); | |
658 | buffer_put_cstring(&msg, oldpath); | |
659 | buffer_put_cstring(&msg, newpath); | |
22e6c827 | 660 | send_msg(conn->fd_out, &msg); |
3a7fe5ba | 661 | debug3("Sent message SSH2_FXP_SYMLINK \"%s\" -> \"%s\"", oldpath, |
662 | newpath); | |
663 | buffer_free(&msg); | |
664 | ||
22e6c827 | 665 | status = get_status(conn->fd_in, id); |
3a7fe5ba | 666 | if (status != SSH2_FX_OK) |
9db1a8e9 | 667 | error("Couldn't symlink file \"%s\" to \"%s\": %s", oldpath, |
22e6c827 | 668 | newpath, fx2txt(status)); |
3a7fe5ba | 669 | |
670 | return(status); | |
671 | } | |
672 | ||
673 | char * | |
22e6c827 | 674 | do_readlink(struct sftp_conn *conn, char *path) |
3a7fe5ba | 675 | { |
676 | Buffer msg; | |
677 | u_int type, expected_id, count, id; | |
678 | char *filename, *longname; | |
679 | Attrib *a; | |
680 | ||
22e6c827 | 681 | expected_id = id = conn->msg_id++; |
682 | send_string_request(conn->fd_out, id, SSH2_FXP_READLINK, path, | |
683 | strlen(path)); | |
3a7fe5ba | 684 | |
685 | buffer_init(&msg); | |
686 | ||
22e6c827 | 687 | get_msg(conn->fd_in, &msg); |
3a7fe5ba | 688 | type = buffer_get_char(&msg); |
689 | id = buffer_get_int(&msg); | |
690 | ||
691 | if (id != expected_id) | |
9906a836 | 692 | fatal("ID mismatch (%u != %u)", id, expected_id); |
3a7fe5ba | 693 | |
694 | if (type == SSH2_FXP_STATUS) { | |
695 | u_int status = buffer_get_int(&msg); | |
696 | ||
697 | error("Couldn't readlink: %s", fx2txt(status)); | |
698 | return(NULL); | |
699 | } else if (type != SSH2_FXP_NAME) | |
9906a836 | 700 | fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", |
3a7fe5ba | 701 | SSH2_FXP_NAME, type); |
702 | ||
703 | count = buffer_get_int(&msg); | |
704 | if (count != 1) | |
705 | fatal("Got multiple names (%d) from SSH_FXP_READLINK", count); | |
706 | ||
707 | filename = buffer_get_string(&msg, NULL); | |
708 | longname = buffer_get_string(&msg, NULL); | |
709 | a = decode_attrib(&msg); | |
710 | ||
711 | debug3("SSH_FXP_READLINK %s -> %s", path, filename); | |
712 | ||
713 | xfree(longname); | |
714 | ||
715 | buffer_free(&msg); | |
716 | ||
717 | return(filename); | |
718 | } | |
719 | ||
c25d3df7 | 720 | static void |
721 | send_read_request(int fd_out, u_int id, u_int64_t offset, u_int len, | |
722 | char *handle, u_int handle_len) | |
723 | { | |
724 | Buffer msg; | |
762715ce | 725 | |
c25d3df7 | 726 | buffer_init(&msg); |
727 | buffer_clear(&msg); | |
728 | buffer_put_char(&msg, SSH2_FXP_READ); | |
729 | buffer_put_int(&msg, id); | |
730 | buffer_put_string(&msg, handle, handle_len); | |
731 | buffer_put_int64(&msg, offset); | |
732 | buffer_put_int(&msg, len); | |
733 | send_msg(fd_out, &msg); | |
734 | buffer_free(&msg); | |
762715ce | 735 | } |
c25d3df7 | 736 | |
61e96248 | 737 | int |
22e6c827 | 738 | do_download(struct sftp_conn *conn, char *remote_path, char *local_path, |
739 | int pflag) | |
61e96248 | 740 | { |
61e96248 | 741 | Attrib junk, *a; |
c25d3df7 | 742 | Buffer msg; |
743 | char *handle; | |
744 | int local_fd, status, num_req, max_req, write_error; | |
745 | int read_error, write_errno; | |
746 | u_int64_t offset, size; | |
22e6c827 | 747 | u_int handle_len, mode, type, id, buflen; |
b65c3807 | 748 | off_t progress_counter; |
c25d3df7 | 749 | struct request { |
750 | u_int id; | |
751 | u_int len; | |
752 | u_int64_t offset; | |
762715ce | 753 | TAILQ_ENTRY(request) tq; |
c25d3df7 | 754 | }; |
755 | TAILQ_HEAD(reqhead, request) requests; | |
756 | struct request *req; | |
757 | ||
758 | TAILQ_INIT(&requests); | |
61e96248 | 759 | |
22e6c827 | 760 | a = do_stat(conn, remote_path, 0); |
61e96248 | 761 | if (a == NULL) |
762 | return(-1); | |
763 | ||
764 | /* XXX: should we preserve set[ug]id? */ | |
765 | if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) | |
bfd934b9 | 766 | mode = a->perm & 0777; |
61e96248 | 767 | else |
768 | mode = 0666; | |
769 | ||
d50d9b63 | 770 | if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) && |
538840a2 | 771 | (!S_ISREG(a->perm))) { |
772 | error("Cannot download non-regular file: %s", remote_path); | |
d50d9b63 | 773 | return(-1); |
774 | } | |
775 | ||
c25d3df7 | 776 | if (a->flags & SSH2_FILEXFER_ATTR_SIZE) |
777 | size = a->size; | |
778 | else | |
779 | size = 0; | |
780 | ||
22e6c827 | 781 | buflen = conn->transfer_buflen; |
61e96248 | 782 | buffer_init(&msg); |
783 | ||
784 | /* Send open request */ | |
22e6c827 | 785 | id = conn->msg_id++; |
61e96248 | 786 | buffer_put_char(&msg, SSH2_FXP_OPEN); |
787 | buffer_put_int(&msg, id); | |
788 | buffer_put_cstring(&msg, remote_path); | |
789 | buffer_put_int(&msg, SSH2_FXF_READ); | |
790 | attrib_clear(&junk); /* Send empty attributes */ | |
791 | encode_attrib(&msg, &junk); | |
22e6c827 | 792 | send_msg(conn->fd_out, &msg); |
9906a836 | 793 | debug3("Sent message SSH2_FXP_OPEN I:%u P:%s", id, remote_path); |
61e96248 | 794 | |
22e6c827 | 795 | handle = get_handle(conn->fd_in, id, &handle_len); |
61e96248 | 796 | if (handle == NULL) { |
797 | buffer_free(&msg); | |
61e96248 | 798 | return(-1); |
799 | } | |
800 | ||
aff51935 | 801 | local_fd = open(local_path, O_WRONLY | O_CREAT | O_TRUNC, |
bfd934b9 | 802 | mode | S_IWRITE); |
22e6c827 | 803 | if (local_fd == -1) { |
804 | error("Couldn't open local file \"%s\" for writing: %s", | |
805 | local_path, strerror(errno)); | |
f60ace9f | 806 | buffer_free(&msg); |
807 | xfree(handle); | |
22e6c827 | 808 | return(-1); |
809 | } | |
810 | ||
61e96248 | 811 | /* Read from remote and write to local */ |
c25d3df7 | 812 | write_error = read_error = write_errno = num_req = offset = 0; |
813 | max_req = 1; | |
b65c3807 | 814 | progress_counter = 0; |
815 | ||
213bab61 | 816 | if (showprogress && size != 0) |
817 | start_progress_meter(remote_path, size, &progress_counter); | |
b65c3807 | 818 | |
c25d3df7 | 819 | while (num_req > 0 || max_req > 0) { |
61e96248 | 820 | char *data; |
c25d3df7 | 821 | u_int len; |
61e96248 | 822 | |
0e5de6f8 | 823 | /* |
824 | * Simulate EOF on interrupt: stop sending new requests and | |
825 | * allow outstanding requests to drain gracefully | |
826 | */ | |
827 | if (interrupted) { | |
828 | if (num_req == 0) /* If we haven't started yet... */ | |
829 | break; | |
830 | max_req = 0; | |
831 | } | |
832 | ||
c25d3df7 | 833 | /* Send some more requests */ |
834 | while (num_req < max_req) { | |
762715ce | 835 | debug3("Request range %llu -> %llu (%d/%d)", |
8627f3e0 | 836 | (unsigned long long)offset, |
837 | (unsigned long long)offset + buflen - 1, | |
838 | num_req, max_req); | |
c25d3df7 | 839 | req = xmalloc(sizeof(*req)); |
22e6c827 | 840 | req->id = conn->msg_id++; |
c25d3df7 | 841 | req->len = buflen; |
842 | req->offset = offset; | |
843 | offset += buflen; | |
844 | num_req++; | |
845 | TAILQ_INSERT_TAIL(&requests, req, tq); | |
762715ce | 846 | send_read_request(conn->fd_out, req->id, req->offset, |
c25d3df7 | 847 | req->len, handle, handle_len); |
848 | } | |
61e96248 | 849 | |
850 | buffer_clear(&msg); | |
22e6c827 | 851 | get_msg(conn->fd_in, &msg); |
61e96248 | 852 | type = buffer_get_char(&msg); |
853 | id = buffer_get_int(&msg); | |
9906a836 | 854 | debug3("Received reply T:%u I:%u R:%d", type, id, max_req); |
c25d3df7 | 855 | |
856 | /* Find the request in our queue */ | |
857 | for(req = TAILQ_FIRST(&requests); | |
858 | req != NULL && req->id != id; | |
859 | req = TAILQ_NEXT(req, tq)) | |
860 | ; | |
861 | if (req == NULL) | |
862 | fatal("Unexpected reply %u", id); | |
863 | ||
864 | switch (type) { | |
865 | case SSH2_FXP_STATUS: | |
0426a3b4 | 866 | status = buffer_get_int(&msg); |
c25d3df7 | 867 | if (status != SSH2_FX_EOF) |
868 | read_error = 1; | |
869 | max_req = 0; | |
870 | TAILQ_REMOVE(&requests, req, tq); | |
871 | xfree(req); | |
872 | num_req--; | |
873 | break; | |
874 | case SSH2_FXP_DATA: | |
875 | data = buffer_get_string(&msg, &len); | |
bfa7f960 | 876 | debug3("Received data %llu -> %llu", |
762715ce | 877 | (unsigned long long)req->offset, |
bfa7f960 | 878 | (unsigned long long)req->offset + len - 1); |
c25d3df7 | 879 | if (len > req->len) |
880 | fatal("Received more data than asked for " | |
b77a87e5 | 881 | "%u > %u", len, req->len); |
c25d3df7 | 882 | if ((lseek(local_fd, req->offset, SEEK_SET) == -1 || |
dc54438a | 883 | atomicio(vwrite, local_fd, data, len) != len) && |
c25d3df7 | 884 | !write_error) { |
885 | write_errno = errno; | |
886 | write_error = 1; | |
887 | max_req = 0; | |
888 | } | |
b65c3807 | 889 | progress_counter += len; |
c25d3df7 | 890 | xfree(data); |
61e96248 | 891 | |
c25d3df7 | 892 | if (len == req->len) { |
893 | TAILQ_REMOVE(&requests, req, tq); | |
894 | xfree(req); | |
895 | num_req--; | |
896 | } else { | |
897 | /* Resend the request for the missing data */ | |
898 | debug3("Short data block, re-requesting " | |
bfa7f960 | 899 | "%llu -> %llu (%2d)", |
762715ce | 900 | (unsigned long long)req->offset + len, |
5fc7dbc9 | 901 | (unsigned long long)req->offset + |
902 | req->len - 1, num_req); | |
22e6c827 | 903 | req->id = conn->msg_id++; |
c25d3df7 | 904 | req->len -= len; |
905 | req->offset += len; | |
762715ce | 906 | send_read_request(conn->fd_out, req->id, |
22e6c827 | 907 | req->offset, req->len, handle, handle_len); |
c25d3df7 | 908 | /* Reduce the request size */ |
909 | if (len < buflen) | |
910 | buflen = MAX(MIN_READ_SIZE, len); | |
911 | } | |
912 | if (max_req > 0) { /* max_req = 0 iff EOF received */ | |
913 | if (size > 0 && offset > size) { | |
914 | /* Only one request at a time | |
915 | * after the expected EOF */ | |
916 | debug3("Finish at %llu (%2d)", | |
bfa7f960 | 917 | (unsigned long long)offset, |
918 | num_req); | |
c25d3df7 | 919 | max_req = 1; |
0e5de6f8 | 920 | } else if (max_req <= conn->num_requests) { |
c25d3df7 | 921 | ++max_req; |
922 | } | |
61e96248 | 923 | } |
c25d3df7 | 924 | break; |
925 | default: | |
9906a836 | 926 | fatal("Expected SSH2_FXP_DATA(%u) packet, got %u", |
61e96248 | 927 | SSH2_FXP_DATA, type); |
928 | } | |
61e96248 | 929 | } |
61e96248 | 930 | |
b65c3807 | 931 | if (showprogress && size) |
932 | stop_progress_meter(); | |
933 | ||
c25d3df7 | 934 | /* Sanity check */ |
935 | if (TAILQ_FIRST(&requests) != NULL) | |
936 | fatal("Transfer complete, but requests still in queue"); | |
937 | ||
938 | if (read_error) { | |
762715ce | 939 | error("Couldn't read from remote file \"%s\" : %s", |
22e6c827 | 940 | remote_path, fx2txt(status)); |
941 | do_close(conn, handle, handle_len); | |
c25d3df7 | 942 | } else if (write_error) { |
22e6c827 | 943 | error("Couldn't write to \"%s\": %s", local_path, |
944 | strerror(write_errno)); | |
945 | status = -1; | |
946 | do_close(conn, handle, handle_len); | |
c25d3df7 | 947 | } else { |
22e6c827 | 948 | status = do_close(conn, handle, handle_len); |
c25d3df7 | 949 | |
950 | /* Override umask and utimes if asked */ | |
663fd560 | 951 | #ifdef HAVE_FCHMOD |
c25d3df7 | 952 | if (pflag && fchmod(local_fd, mode) == -1) |
aff51935 | 953 | #else |
c25d3df7 | 954 | if (pflag && chmod(local_path, mode) == -1) |
663fd560 | 955 | #endif /* HAVE_FCHMOD */ |
c25d3df7 | 956 | error("Couldn't set mode on \"%s\": %s", local_path, |
b77a87e5 | 957 | strerror(errno)); |
c25d3df7 | 958 | if (pflag && (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME)) { |
959 | struct timeval tv[2]; | |
960 | tv[0].tv_sec = a->atime; | |
961 | tv[1].tv_sec = a->mtime; | |
962 | tv[0].tv_usec = tv[1].tv_usec = 0; | |
963 | if (utimes(local_path, tv) == -1) | |
964 | error("Can't set times on \"%s\": %s", | |
b77a87e5 | 965 | local_path, strerror(errno)); |
c25d3df7 | 966 | } |
58c54a79 | 967 | } |
0426a3b4 | 968 | close(local_fd); |
969 | buffer_free(&msg); | |
970 | xfree(handle); | |
22e6c827 | 971 | |
972 | return(status); | |
61e96248 | 973 | } |
974 | ||
975 | int | |
22e6c827 | 976 | do_upload(struct sftp_conn *conn, char *local_path, char *remote_path, |
977 | int pflag) | |
61e96248 | 978 | { |
375f867e | 979 | int local_fd, status; |
b2bab059 | 980 | u_int handle_len, id, type; |
61e96248 | 981 | u_int64_t offset; |
375f867e | 982 | char *handle, *data; |
61e96248 | 983 | Buffer msg; |
984 | struct stat sb; | |
985 | Attrib a; | |
c25d3df7 | 986 | u_int32_t startid; |
987 | u_int32_t ackid; | |
b2bab059 | 988 | struct outstanding_ack { |
989 | u_int id; | |
990 | u_int len; | |
991 | u_int64_t offset; | |
762715ce | 992 | TAILQ_ENTRY(outstanding_ack) tq; |
b2bab059 | 993 | }; |
994 | TAILQ_HEAD(ackhead, outstanding_ack) acks; | |
6e007f08 | 995 | struct outstanding_ack *ack = NULL; |
b2bab059 | 996 | |
997 | TAILQ_INIT(&acks); | |
61e96248 | 998 | |
999 | if ((local_fd = open(local_path, O_RDONLY, 0)) == -1) { | |
1000 | error("Couldn't open local file \"%s\" for reading: %s", | |
1001 | local_path, strerror(errno)); | |
1002 | return(-1); | |
1003 | } | |
1004 | if (fstat(local_fd, &sb) == -1) { | |
1005 | error("Couldn't fstat local file \"%s\": %s", | |
1006 | local_path, strerror(errno)); | |
1007 | close(local_fd); | |
1008 | return(-1); | |
1009 | } | |
538840a2 | 1010 | if (!S_ISREG(sb.st_mode)) { |
1011 | error("%s is not a regular file", local_path); | |
1012 | close(local_fd); | |
1013 | return(-1); | |
1014 | } | |
61e96248 | 1015 | stat_to_attrib(&sb, &a); |
1016 | ||
1017 | a.flags &= ~SSH2_FILEXFER_ATTR_SIZE; | |
1018 | a.flags &= ~SSH2_FILEXFER_ATTR_UIDGID; | |
1019 | a.perm &= 0777; | |
1020 | if (!pflag) | |
1021 | a.flags &= ~SSH2_FILEXFER_ATTR_ACMODTIME; | |
1022 | ||
1023 | buffer_init(&msg); | |
1024 | ||
1025 | /* Send open request */ | |
22e6c827 | 1026 | id = conn->msg_id++; |
61e96248 | 1027 | buffer_put_char(&msg, SSH2_FXP_OPEN); |
1028 | buffer_put_int(&msg, id); | |
1029 | buffer_put_cstring(&msg, remote_path); | |
1030 | buffer_put_int(&msg, SSH2_FXF_WRITE|SSH2_FXF_CREAT|SSH2_FXF_TRUNC); | |
1031 | encode_attrib(&msg, &a); | |
22e6c827 | 1032 | send_msg(conn->fd_out, &msg); |
9906a836 | 1033 | debug3("Sent message SSH2_FXP_OPEN I:%u P:%s", id, remote_path); |
61e96248 | 1034 | |
1035 | buffer_clear(&msg); | |
1036 | ||
22e6c827 | 1037 | handle = get_handle(conn->fd_in, id, &handle_len); |
61e96248 | 1038 | if (handle == NULL) { |
1039 | close(local_fd); | |
1040 | buffer_free(&msg); | |
1041 | return(-1); | |
1042 | } | |
1043 | ||
c25d3df7 | 1044 | startid = ackid = id + 1; |
22e6c827 | 1045 | data = xmalloc(conn->transfer_buflen); |
375f867e | 1046 | |
61e96248 | 1047 | /* Read from local and write to remote */ |
1048 | offset = 0; | |
b65c3807 | 1049 | if (showprogress) |
1050 | start_progress_meter(local_path, sb.st_size, &offset); | |
b65c3807 | 1051 | |
184eed6a | 1052 | for (;;) { |
61e96248 | 1053 | int len; |
61e96248 | 1054 | |
1055 | /* | |
0e5de6f8 | 1056 | * Can't use atomicio here because it returns 0 on EOF, |
1057 | * thus losing the last block of the file. | |
1058 | * Simulate an EOF on interrupt, allowing ACKs from the | |
1059 | * server to drain. | |
61e96248 | 1060 | */ |
0e5de6f8 | 1061 | if (interrupted) |
1062 | len = 0; | |
1063 | else do | |
22e6c827 | 1064 | len = read(local_fd, data, conn->transfer_buflen); |
61e96248 | 1065 | while ((len == -1) && (errno == EINTR || errno == EAGAIN)); |
1066 | ||
1067 | if (len == -1) | |
1068 | fatal("Couldn't read from \"%s\": %s", local_path, | |
1069 | strerror(errno)); | |
c25d3df7 | 1070 | |
1071 | if (len != 0) { | |
b2bab059 | 1072 | ack = xmalloc(sizeof(*ack)); |
1073 | ack->id = ++id; | |
1074 | ack->offset = offset; | |
1075 | ack->len = len; | |
1076 | TAILQ_INSERT_TAIL(&acks, ack, tq); | |
1077 | ||
c25d3df7 | 1078 | buffer_clear(&msg); |
1079 | buffer_put_char(&msg, SSH2_FXP_WRITE); | |
b2bab059 | 1080 | buffer_put_int(&msg, ack->id); |
c25d3df7 | 1081 | buffer_put_string(&msg, handle, handle_len); |
1082 | buffer_put_int64(&msg, offset); | |
1083 | buffer_put_string(&msg, data, len); | |
22e6c827 | 1084 | send_msg(conn->fd_out, &msg); |
9906a836 | 1085 | debug3("Sent message SSH2_FXP_WRITE I:%u O:%llu S:%u", |
b77a87e5 | 1086 | id, (unsigned long long)offset, len); |
b2bab059 | 1087 | } else if (TAILQ_FIRST(&acks) == NULL) |
61e96248 | 1088 | break; |
1089 | ||
b2bab059 | 1090 | if (ack == NULL) |
1091 | fatal("Unexpected ACK %u", id); | |
1092 | ||
762715ce | 1093 | if (id == startid || len == 0 || |
22e6c827 | 1094 | id - ackid >= conn->num_requests) { |
875ec275 | 1095 | u_int r_id; |
af2b3cd9 | 1096 | |
b2bab059 | 1097 | buffer_clear(&msg); |
22e6c827 | 1098 | get_msg(conn->fd_in, &msg); |
b2bab059 | 1099 | type = buffer_get_char(&msg); |
af2b3cd9 | 1100 | r_id = buffer_get_int(&msg); |
b2bab059 | 1101 | |
1102 | if (type != SSH2_FXP_STATUS) | |
1103 | fatal("Expected SSH2_FXP_STATUS(%d) packet, " | |
1104 | "got %d", SSH2_FXP_STATUS, type); | |
1105 | ||
1106 | status = buffer_get_int(&msg); | |
1107 | debug3("SSH2_FXP_STATUS %d", status); | |
1108 | ||
1109 | /* Find the request in our queue */ | |
1110 | for(ack = TAILQ_FIRST(&acks); | |
af2b3cd9 | 1111 | ack != NULL && ack->id != r_id; |
b2bab059 | 1112 | ack = TAILQ_NEXT(ack, tq)) |
1113 | ; | |
1114 | if (ack == NULL) | |
9906a836 | 1115 | fatal("Can't find request for ID %u", r_id); |
b2bab059 | 1116 | TAILQ_REMOVE(&acks, ack, tq); |
1117 | ||
c25d3df7 | 1118 | if (status != SSH2_FX_OK) { |
1119 | error("Couldn't write to remote file \"%s\": %s", | |
b77a87e5 | 1120 | remote_path, fx2txt(status)); |
22e6c827 | 1121 | do_close(conn, handle, handle_len); |
c25d3df7 | 1122 | close(local_fd); |
3e2f2431 | 1123 | xfree(data); |
1124 | xfree(ack); | |
c25d3df7 | 1125 | goto done; |
1126 | } | |
9906a836 | 1127 | debug3("In write loop, ack for %u %u bytes at %llu", |
bfa7f960 | 1128 | ack->id, ack->len, (unsigned long long)ack->offset); |
c25d3df7 | 1129 | ++ackid; |
30e37ee6 | 1130 | xfree(ack); |
61e96248 | 1131 | } |
61e96248 | 1132 | offset += len; |
1133 | } | |
b65c3807 | 1134 | if (showprogress) |
1135 | stop_progress_meter(); | |
375f867e | 1136 | xfree(data); |
61e96248 | 1137 | |
1138 | if (close(local_fd) == -1) { | |
1139 | error("Couldn't close local file \"%s\": %s", local_path, | |
1140 | strerror(errno)); | |
22e6c827 | 1141 | do_close(conn, handle, handle_len); |
0426a3b4 | 1142 | status = -1; |
1143 | goto done; | |
61e96248 | 1144 | } |
1145 | ||
58c54a79 | 1146 | /* Override umask and utimes if asked */ |
1147 | if (pflag) | |
22e6c827 | 1148 | do_fsetstat(conn, handle, handle_len, &a); |
58c54a79 | 1149 | |
22e6c827 | 1150 | status = do_close(conn, handle, handle_len); |
0426a3b4 | 1151 | |
1152 | done: | |
1153 | xfree(handle); | |
1154 | buffer_free(&msg); | |
22e6c827 | 1155 | return(status); |
61e96248 | 1156 | } |