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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" | |
ab3932ab | 23 | RCSID("$OpenBSD: sftp-client.c,v 1.46 2004/02/17 05:39:51 djm 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 | ||
b65c3807 | 39 | extern int showprogress; |
40 | ||
c25d3df7 | 41 | /* Minimum amount of data to read at at time */ |
42 | #define MIN_READ_SIZE 512 | |
43 | ||
bf0bf24b | 44 | /* Maximum packet size */ |
45 | #define MAX_MSG_LENGTH (256 * 1024) | |
46 | ||
22e6c827 | 47 | struct sftp_conn { |
48 | int fd_in; | |
49 | int fd_out; | |
50 | u_int transfer_buflen; | |
51 | u_int num_requests; | |
52 | u_int version; | |
53 | u_int msg_id; | |
54 | }; | |
9c5a8165 | 55 | |
396c147e | 56 | static void |
61e96248 | 57 | send_msg(int fd, Buffer *m) |
58 | { | |
bf0bf24b | 59 | u_char mlen[4]; |
60 | ||
61 | if (buffer_len(m) > MAX_MSG_LENGTH) | |
62 | fatal("Outbound message too long %u", buffer_len(m)); | |
61e96248 | 63 | |
bf0bf24b | 64 | /* Send length first */ |
65 | PUT_32BIT(mlen, buffer_len(m)); | |
dc54438a | 66 | if (atomicio(vwrite, fd, mlen, sizeof(mlen)) <= 0) |
bf0bf24b | 67 | fatal("Couldn't send packet: %s", strerror(errno)); |
61e96248 | 68 | |
dc54438a | 69 | if (atomicio(vwrite, fd, buffer_ptr(m), buffer_len(m)) <= 0) |
61e96248 | 70 | fatal("Couldn't send packet: %s", strerror(errno)); |
71 | ||
bf0bf24b | 72 | buffer_clear(m); |
61e96248 | 73 | } |
74 | ||
396c147e | 75 | static void |
61e96248 | 76 | get_msg(int fd, Buffer *m) |
77 | { | |
bf0bf24b | 78 | ssize_t len; |
79 | u_int msg_len; | |
61e96248 | 80 | |
bf0bf24b | 81 | buffer_append_space(m, 4); |
82 | len = atomicio(read, fd, buffer_ptr(m), 4); | |
bb6da70f | 83 | if (len == 0) |
84 | fatal("Connection closed"); | |
85 | else if (len == -1) | |
61e96248 | 86 | fatal("Couldn't read packet: %s", strerror(errno)); |
87 | ||
bf0bf24b | 88 | msg_len = buffer_get_int(m); |
89 | if (msg_len > MAX_MSG_LENGTH) | |
9906a836 | 90 | fatal("Received message too long %u", msg_len); |
61e96248 | 91 | |
bf0bf24b | 92 | buffer_append_space(m, msg_len); |
93 | len = atomicio(read, fd, buffer_ptr(m), msg_len); | |
94 | if (len == 0) | |
95 | fatal("Connection closed"); | |
96 | else if (len == -1) | |
97 | fatal("Read packet: %s", strerror(errno)); | |
61e96248 | 98 | } |
99 | ||
396c147e | 100 | static void |
61e96248 | 101 | send_string_request(int fd, u_int id, u_int code, char *s, |
102 | u_int len) | |
103 | { | |
104 | Buffer msg; | |
105 | ||
106 | buffer_init(&msg); | |
107 | buffer_put_char(&msg, code); | |
108 | buffer_put_int(&msg, id); | |
109 | buffer_put_string(&msg, s, len); | |
110 | send_msg(fd, &msg); | |
9906a836 | 111 | debug3("Sent message fd %d T:%u I:%u", fd, code, id); |
61e96248 | 112 | buffer_free(&msg); |
113 | } | |
114 | ||
396c147e | 115 | static void |
61e96248 | 116 | send_string_attrs_request(int fd, u_int id, u_int code, char *s, |
117 | u_int len, Attrib *a) | |
118 | { | |
119 | Buffer msg; | |
120 | ||
121 | buffer_init(&msg); | |
122 | buffer_put_char(&msg, code); | |
123 | buffer_put_int(&msg, id); | |
124 | buffer_put_string(&msg, s, len); | |
125 | encode_attrib(&msg, a); | |
126 | send_msg(fd, &msg); | |
9906a836 | 127 | debug3("Sent message fd %d T:%u I:%u", fd, code, id); |
61e96248 | 128 | buffer_free(&msg); |
129 | } | |
130 | ||
396c147e | 131 | static u_int |
9906a836 | 132 | get_status(int fd, u_int expected_id) |
61e96248 | 133 | { |
134 | Buffer msg; | |
135 | u_int type, id, status; | |
136 | ||
137 | buffer_init(&msg); | |
138 | get_msg(fd, &msg); | |
139 | type = buffer_get_char(&msg); | |
140 | id = buffer_get_int(&msg); | |
141 | ||
142 | if (id != expected_id) | |
9906a836 | 143 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 144 | if (type != SSH2_FXP_STATUS) |
9906a836 | 145 | fatal("Expected SSH2_FXP_STATUS(%u) packet, got %u", |
61e96248 | 146 | SSH2_FXP_STATUS, type); |
147 | ||
148 | status = buffer_get_int(&msg); | |
149 | buffer_free(&msg); | |
150 | ||
9906a836 | 151 | debug3("SSH2_FXP_STATUS %u", status); |
61e96248 | 152 | |
153 | return(status); | |
154 | } | |
155 | ||
396c147e | 156 | static char * |
61e96248 | 157 | get_handle(int fd, u_int expected_id, u_int *len) |
158 | { | |
159 | Buffer msg; | |
160 | u_int type, id; | |
161 | char *handle; | |
162 | ||
163 | buffer_init(&msg); | |
164 | get_msg(fd, &msg); | |
165 | type = buffer_get_char(&msg); | |
166 | id = buffer_get_int(&msg); | |
167 | ||
168 | if (id != expected_id) | |
9906a836 | 169 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 170 | if (type == SSH2_FXP_STATUS) { |
171 | int status = buffer_get_int(&msg); | |
172 | ||
173 | error("Couldn't get handle: %s", fx2txt(status)); | |
174 | return(NULL); | |
175 | } else if (type != SSH2_FXP_HANDLE) | |
9906a836 | 176 | fatal("Expected SSH2_FXP_HANDLE(%u) packet, got %u", |
61e96248 | 177 | SSH2_FXP_HANDLE, type); |
178 | ||
179 | handle = buffer_get_string(&msg, len); | |
180 | buffer_free(&msg); | |
181 | ||
182 | return(handle); | |
183 | } | |
184 | ||
396c147e | 185 | static Attrib * |
d50d9b63 | 186 | get_decode_stat(int fd, u_int expected_id, int quiet) |
61e96248 | 187 | { |
188 | Buffer msg; | |
189 | u_int type, id; | |
190 | Attrib *a; | |
191 | ||
192 | buffer_init(&msg); | |
193 | get_msg(fd, &msg); | |
194 | ||
195 | type = buffer_get_char(&msg); | |
196 | id = buffer_get_int(&msg); | |
197 | ||
9906a836 | 198 | debug3("Received stat reply T:%u I:%u", type, id); |
61e96248 | 199 | if (id != expected_id) |
9906a836 | 200 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 201 | if (type == SSH2_FXP_STATUS) { |
202 | int status = buffer_get_int(&msg); | |
203 | ||
d50d9b63 | 204 | if (quiet) |
205 | debug("Couldn't stat remote file: %s", fx2txt(status)); | |
206 | else | |
207 | error("Couldn't stat remote file: %s", fx2txt(status)); | |
61e96248 | 208 | return(NULL); |
209 | } else if (type != SSH2_FXP_ATTRS) { | |
9906a836 | 210 | fatal("Expected SSH2_FXP_ATTRS(%u) packet, got %u", |
61e96248 | 211 | SSH2_FXP_ATTRS, type); |
212 | } | |
213 | a = decode_attrib(&msg); | |
214 | buffer_free(&msg); | |
215 | ||
216 | return(a); | |
217 | } | |
218 | ||
22e6c827 | 219 | struct sftp_conn * |
220 | do_init(int fd_in, int fd_out, u_int transfer_buflen, u_int num_requests) | |
61e96248 | 221 | { |
9906a836 | 222 | u_int type; |
223 | int version; | |
61e96248 | 224 | Buffer msg; |
22e6c827 | 225 | struct sftp_conn *ret; |
61e96248 | 226 | |
227 | buffer_init(&msg); | |
228 | buffer_put_char(&msg, SSH2_FXP_INIT); | |
229 | buffer_put_int(&msg, SSH2_FILEXFER_VERSION); | |
230 | send_msg(fd_out, &msg); | |
231 | ||
232 | buffer_clear(&msg); | |
233 | ||
234 | get_msg(fd_in, &msg); | |
235 | ||
2b87da3b | 236 | /* Expecting a VERSION reply */ |
61e96248 | 237 | if ((type = buffer_get_char(&msg)) != SSH2_FXP_VERSION) { |
9906a836 | 238 | error("Invalid packet back from SSH2_FXP_INIT (type %u)", |
61e96248 | 239 | type); |
240 | buffer_free(&msg); | |
22e6c827 | 241 | return(NULL); |
61e96248 | 242 | } |
243 | version = buffer_get_int(&msg); | |
244 | ||
245 | debug2("Remote version: %d", version); | |
246 | ||
247 | /* Check for extensions */ | |
248 | while (buffer_len(&msg) > 0) { | |
249 | char *name = buffer_get_string(&msg, NULL); | |
250 | char *value = buffer_get_string(&msg, NULL); | |
251 | ||
252 | debug2("Init extension: \"%s\"", name); | |
253 | xfree(name); | |
254 | xfree(value); | |
255 | } | |
256 | ||
257 | buffer_free(&msg); | |
3a7fe5ba | 258 | |
22e6c827 | 259 | ret = xmalloc(sizeof(*ret)); |
260 | ret->fd_in = fd_in; | |
261 | ret->fd_out = fd_out; | |
262 | ret->transfer_buflen = transfer_buflen; | |
263 | ret->num_requests = num_requests; | |
264 | ret->version = version; | |
265 | ret->msg_id = 1; | |
266 | ||
267 | /* Some filexfer v.0 servers don't support large packets */ | |
268 | if (version == 0) | |
92053302 | 269 | ret->transfer_buflen = MIN(ret->transfer_buflen, 20480); |
22e6c827 | 270 | |
271 | return(ret); | |
272 | } | |
273 | ||
274 | u_int | |
275 | sftp_proto_version(struct sftp_conn *conn) | |
276 | { | |
277 | return(conn->version); | |
61e96248 | 278 | } |
279 | ||
280 | int | |
22e6c827 | 281 | do_close(struct sftp_conn *conn, char *handle, u_int handle_len) |
61e96248 | 282 | { |
283 | u_int id, status; | |
284 | Buffer msg; | |
285 | ||
286 | buffer_init(&msg); | |
287 | ||
22e6c827 | 288 | id = conn->msg_id++; |
61e96248 | 289 | buffer_put_char(&msg, SSH2_FXP_CLOSE); |
290 | buffer_put_int(&msg, id); | |
291 | buffer_put_string(&msg, handle, handle_len); | |
22e6c827 | 292 | send_msg(conn->fd_out, &msg); |
9906a836 | 293 | debug3("Sent message SSH2_FXP_CLOSE I:%u", id); |
61e96248 | 294 | |
22e6c827 | 295 | status = get_status(conn->fd_in, id); |
61e96248 | 296 | if (status != SSH2_FX_OK) |
297 | error("Couldn't close file: %s", fx2txt(status)); | |
298 | ||
299 | buffer_free(&msg); | |
300 | ||
301 | return(status); | |
302 | } | |
303 | ||
2e4fb373 | 304 | |
396c147e | 305 | static int |
22e6c827 | 306 | do_lsreaddir(struct sftp_conn *conn, char *path, int printflag, |
2e4fb373 | 307 | SFTP_DIRENT ***dir) |
61e96248 | 308 | { |
309 | Buffer msg; | |
4cb5d598 | 310 | u_int type, id, handle_len, i, expected_id, ents = 0; |
61e96248 | 311 | char *handle; |
312 | ||
22e6c827 | 313 | id = conn->msg_id++; |
61e96248 | 314 | |
315 | buffer_init(&msg); | |
316 | buffer_put_char(&msg, SSH2_FXP_OPENDIR); | |
317 | buffer_put_int(&msg, id); | |
318 | buffer_put_cstring(&msg, path); | |
22e6c827 | 319 | send_msg(conn->fd_out, &msg); |
61e96248 | 320 | |
321 | buffer_clear(&msg); | |
322 | ||
22e6c827 | 323 | handle = get_handle(conn->fd_in, id, &handle_len); |
61e96248 | 324 | if (handle == NULL) |
325 | return(-1); | |
326 | ||
2e4fb373 | 327 | if (dir) { |
328 | ents = 0; | |
329 | *dir = xmalloc(sizeof(**dir)); | |
330 | (*dir)[0] = NULL; | |
331 | } | |
2e4fb373 | 332 | |
184eed6a | 333 | for (;;) { |
61e96248 | 334 | int count; |
335 | ||
22e6c827 | 336 | id = expected_id = conn->msg_id++; |
61e96248 | 337 | |
9906a836 | 338 | debug3("Sending SSH2_FXP_READDIR I:%u", id); |
61e96248 | 339 | |
340 | buffer_clear(&msg); | |
341 | buffer_put_char(&msg, SSH2_FXP_READDIR); | |
342 | buffer_put_int(&msg, id); | |
343 | buffer_put_string(&msg, handle, handle_len); | |
22e6c827 | 344 | send_msg(conn->fd_out, &msg); |
61e96248 | 345 | |
346 | buffer_clear(&msg); | |
347 | ||
22e6c827 | 348 | get_msg(conn->fd_in, &msg); |
61e96248 | 349 | |
350 | type = buffer_get_char(&msg); | |
351 | id = buffer_get_int(&msg); | |
352 | ||
9906a836 | 353 | debug3("Received reply T:%u I:%u", type, id); |
61e96248 | 354 | |
355 | if (id != expected_id) | |
9906a836 | 356 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 357 | |
358 | if (type == SSH2_FXP_STATUS) { | |
359 | int status = buffer_get_int(&msg); | |
360 | ||
361 | debug3("Received SSH2_FXP_STATUS %d", status); | |
362 | ||
363 | if (status == SSH2_FX_EOF) { | |
364 | break; | |
365 | } else { | |
366 | error("Couldn't read directory: %s", | |
367 | fx2txt(status)); | |
22e6c827 | 368 | do_close(conn, handle, handle_len); |
3e2f2431 | 369 | xfree(handle); |
b655a207 | 370 | return(status); |
61e96248 | 371 | } |
372 | } else if (type != SSH2_FXP_NAME) | |
9906a836 | 373 | fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", |
61e96248 | 374 | SSH2_FXP_NAME, type); |
375 | ||
376 | count = buffer_get_int(&msg); | |
0426a3b4 | 377 | if (count == 0) |
378 | break; | |
379 | debug3("Received %d SSH2_FXP_NAME responses", count); | |
184eed6a | 380 | for (i = 0; i < count; i++) { |
61e96248 | 381 | char *filename, *longname; |
382 | Attrib *a; | |
383 | ||
384 | filename = buffer_get_string(&msg, NULL); | |
385 | longname = buffer_get_string(&msg, NULL); | |
386 | a = decode_attrib(&msg); | |
387 | ||
2e4fb373 | 388 | if (printflag) |
389 | printf("%s\n", longname); | |
390 | ||
391 | if (dir) { | |
cd332296 | 392 | *dir = xrealloc(*dir, sizeof(**dir) * |
2e4fb373 | 393 | (ents + 2)); |
394 | (*dir)[ents] = xmalloc(sizeof(***dir)); | |
395 | (*dir)[ents]->filename = xstrdup(filename); | |
396 | (*dir)[ents]->longname = xstrdup(longname); | |
397 | memcpy(&(*dir)[ents]->a, a, sizeof(*a)); | |
398 | (*dir)[++ents] = NULL; | |
399 | } | |
61e96248 | 400 | |
401 | xfree(filename); | |
402 | xfree(longname); | |
403 | } | |
404 | } | |
405 | ||
406 | buffer_free(&msg); | |
22e6c827 | 407 | do_close(conn, handle, handle_len); |
61e96248 | 408 | xfree(handle); |
409 | ||
410 | return(0); | |
411 | } | |
412 | ||
2e4fb373 | 413 | int |
22e6c827 | 414 | do_readdir(struct sftp_conn *conn, char *path, SFTP_DIRENT ***dir) |
2e4fb373 | 415 | { |
22e6c827 | 416 | return(do_lsreaddir(conn, path, 0, dir)); |
2e4fb373 | 417 | } |
418 | ||
419 | void free_sftp_dirents(SFTP_DIRENT **s) | |
420 | { | |
421 | int i; | |
184eed6a | 422 | |
423 | for (i = 0; s[i]; i++) { | |
2e4fb373 | 424 | xfree(s[i]->filename); |
425 | xfree(s[i]->longname); | |
426 | xfree(s[i]); | |
427 | } | |
428 | xfree(s); | |
429 | } | |
430 | ||
61e96248 | 431 | int |
22e6c827 | 432 | do_rm(struct sftp_conn *conn, char *path) |
61e96248 | 433 | { |
434 | u_int status, id; | |
435 | ||
436 | debug2("Sending SSH2_FXP_REMOVE \"%s\"", path); | |
437 | ||
22e6c827 | 438 | id = conn->msg_id++; |
762715ce | 439 | send_string_request(conn->fd_out, id, SSH2_FXP_REMOVE, path, |
22e6c827 | 440 | strlen(path)); |
441 | status = get_status(conn->fd_in, id); | |
61e96248 | 442 | if (status != SSH2_FX_OK) |
443 | error("Couldn't delete file: %s", fx2txt(status)); | |
444 | return(status); | |
445 | } | |
446 | ||
447 | int | |
22e6c827 | 448 | do_mkdir(struct sftp_conn *conn, char *path, Attrib *a) |
61e96248 | 449 | { |
450 | u_int status, id; | |
451 | ||
22e6c827 | 452 | id = conn->msg_id++; |
453 | send_string_attrs_request(conn->fd_out, id, SSH2_FXP_MKDIR, path, | |
61e96248 | 454 | strlen(path), a); |
455 | ||
22e6c827 | 456 | status = get_status(conn->fd_in, id); |
61e96248 | 457 | if (status != SSH2_FX_OK) |
458 | error("Couldn't create directory: %s", fx2txt(status)); | |
459 | ||
460 | return(status); | |
461 | } | |
462 | ||
463 | int | |
22e6c827 | 464 | do_rmdir(struct sftp_conn *conn, char *path) |
61e96248 | 465 | { |
466 | u_int status, id; | |
467 | ||
22e6c827 | 468 | id = conn->msg_id++; |
469 | send_string_request(conn->fd_out, id, SSH2_FXP_RMDIR, path, | |
470 | strlen(path)); | |
61e96248 | 471 | |
22e6c827 | 472 | status = get_status(conn->fd_in, id); |
61e96248 | 473 | if (status != SSH2_FX_OK) |
474 | error("Couldn't remove directory: %s", fx2txt(status)); | |
475 | ||
476 | return(status); | |
477 | } | |
478 | ||
479 | Attrib * | |
22e6c827 | 480 | do_stat(struct sftp_conn *conn, char *path, int quiet) |
61e96248 | 481 | { |
482 | u_int id; | |
483 | ||
22e6c827 | 484 | id = conn->msg_id++; |
485 | ||
762715ce | 486 | send_string_request(conn->fd_out, id, |
487 | conn->version == 0 ? SSH2_FXP_STAT_VERSION_0 : SSH2_FXP_STAT, | |
22e6c827 | 488 | path, strlen(path)); |
489 | ||
490 | return(get_decode_stat(conn->fd_in, id, quiet)); | |
61e96248 | 491 | } |
492 | ||
493 | Attrib * | |
22e6c827 | 494 | do_lstat(struct sftp_conn *conn, char *path, int quiet) |
61e96248 | 495 | { |
496 | u_int id; | |
497 | ||
22e6c827 | 498 | if (conn->version == 0) { |
499 | if (quiet) | |
500 | debug("Server version does not support lstat operation"); | |
501 | else | |
bbe88b6d | 502 | logit("Server version does not support lstat operation"); |
9c74a24d | 503 | return(do_stat(conn, path, quiet)); |
22e6c827 | 504 | } |
505 | ||
506 | id = conn->msg_id++; | |
507 | send_string_request(conn->fd_out, id, SSH2_FXP_LSTAT, path, | |
508 | strlen(path)); | |
509 | ||
510 | return(get_decode_stat(conn->fd_in, id, quiet)); | |
61e96248 | 511 | } |
512 | ||
513 | Attrib * | |
22e6c827 | 514 | do_fstat(struct sftp_conn *conn, char *handle, u_int handle_len, int quiet) |
61e96248 | 515 | { |
516 | u_int id; | |
517 | ||
22e6c827 | 518 | id = conn->msg_id++; |
519 | send_string_request(conn->fd_out, id, SSH2_FXP_FSTAT, handle, | |
520 | handle_len); | |
521 | ||
522 | return(get_decode_stat(conn->fd_in, id, quiet)); | |
61e96248 | 523 | } |
524 | ||
525 | int | |
22e6c827 | 526 | do_setstat(struct sftp_conn *conn, char *path, Attrib *a) |
61e96248 | 527 | { |
528 | u_int status, id; | |
529 | ||
22e6c827 | 530 | id = conn->msg_id++; |
531 | send_string_attrs_request(conn->fd_out, id, SSH2_FXP_SETSTAT, path, | |
61e96248 | 532 | strlen(path), a); |
533 | ||
22e6c827 | 534 | status = get_status(conn->fd_in, id); |
61e96248 | 535 | if (status != SSH2_FX_OK) |
536 | error("Couldn't setstat on \"%s\": %s", path, | |
537 | fx2txt(status)); | |
538 | ||
539 | return(status); | |
540 | } | |
541 | ||
542 | int | |
22e6c827 | 543 | do_fsetstat(struct sftp_conn *conn, char *handle, u_int handle_len, |
61e96248 | 544 | Attrib *a) |
545 | { | |
546 | u_int status, id; | |
547 | ||
22e6c827 | 548 | id = conn->msg_id++; |
549 | send_string_attrs_request(conn->fd_out, id, SSH2_FXP_FSETSTAT, handle, | |
61e96248 | 550 | handle_len, a); |
551 | ||
22e6c827 | 552 | status = get_status(conn->fd_in, id); |
61e96248 | 553 | if (status != SSH2_FX_OK) |
554 | error("Couldn't fsetstat: %s", fx2txt(status)); | |
555 | ||
556 | return(status); | |
557 | } | |
558 | ||
559 | char * | |
22e6c827 | 560 | do_realpath(struct sftp_conn *conn, char *path) |
61e96248 | 561 | { |
562 | Buffer msg; | |
563 | u_int type, expected_id, count, id; | |
564 | char *filename, *longname; | |
565 | Attrib *a; | |
566 | ||
22e6c827 | 567 | expected_id = id = conn->msg_id++; |
568 | send_string_request(conn->fd_out, id, SSH2_FXP_REALPATH, path, | |
569 | strlen(path)); | |
61e96248 | 570 | |
571 | buffer_init(&msg); | |
572 | ||
22e6c827 | 573 | get_msg(conn->fd_in, &msg); |
61e96248 | 574 | type = buffer_get_char(&msg); |
575 | id = buffer_get_int(&msg); | |
576 | ||
577 | if (id != expected_id) | |
9906a836 | 578 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 579 | |
580 | if (type == SSH2_FXP_STATUS) { | |
581 | u_int status = buffer_get_int(&msg); | |
582 | ||
583 | error("Couldn't canonicalise: %s", fx2txt(status)); | |
584 | return(NULL); | |
585 | } else if (type != SSH2_FXP_NAME) | |
9906a836 | 586 | fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", |
61e96248 | 587 | SSH2_FXP_NAME, type); |
588 | ||
589 | count = buffer_get_int(&msg); | |
590 | if (count != 1) | |
591 | fatal("Got multiple names (%d) from SSH_FXP_REALPATH", count); | |
592 | ||
593 | filename = buffer_get_string(&msg, NULL); | |
594 | longname = buffer_get_string(&msg, NULL); | |
595 | a = decode_attrib(&msg); | |
596 | ||
597 | debug3("SSH_FXP_REALPATH %s -> %s", path, filename); | |
598 | ||
599 | xfree(longname); | |
600 | ||
601 | buffer_free(&msg); | |
602 | ||
603 | return(filename); | |
604 | } | |
605 | ||
606 | int | |
22e6c827 | 607 | do_rename(struct sftp_conn *conn, char *oldpath, char *newpath) |
61e96248 | 608 | { |
609 | Buffer msg; | |
610 | u_int status, id; | |
611 | ||
612 | buffer_init(&msg); | |
613 | ||
614 | /* Send rename request */ | |
22e6c827 | 615 | id = conn->msg_id++; |
61e96248 | 616 | buffer_put_char(&msg, SSH2_FXP_RENAME); |
617 | buffer_put_int(&msg, id); | |
618 | buffer_put_cstring(&msg, oldpath); | |
619 | buffer_put_cstring(&msg, newpath); | |
22e6c827 | 620 | send_msg(conn->fd_out, &msg); |
61e96248 | 621 | debug3("Sent message SSH2_FXP_RENAME \"%s\" -> \"%s\"", oldpath, |
622 | newpath); | |
623 | buffer_free(&msg); | |
624 | ||
22e6c827 | 625 | status = get_status(conn->fd_in, id); |
61e96248 | 626 | if (status != SSH2_FX_OK) |
22e6c827 | 627 | error("Couldn't rename file \"%s\" to \"%s\": %s", oldpath, |
628 | newpath, fx2txt(status)); | |
61e96248 | 629 | |
630 | return(status); | |
631 | } | |
632 | ||
3a7fe5ba | 633 | int |
22e6c827 | 634 | do_symlink(struct sftp_conn *conn, char *oldpath, char *newpath) |
3a7fe5ba | 635 | { |
636 | Buffer msg; | |
637 | u_int status, id; | |
638 | ||
22e6c827 | 639 | if (conn->version < 3) { |
640 | error("This server does not support the symlink operation"); | |
641 | return(SSH2_FX_OP_UNSUPPORTED); | |
642 | } | |
643 | ||
3a7fe5ba | 644 | buffer_init(&msg); |
645 | ||
646 | /* Send rename request */ | |
22e6c827 | 647 | id = conn->msg_id++; |
3a7fe5ba | 648 | buffer_put_char(&msg, SSH2_FXP_SYMLINK); |
649 | buffer_put_int(&msg, id); | |
650 | buffer_put_cstring(&msg, oldpath); | |
651 | buffer_put_cstring(&msg, newpath); | |
22e6c827 | 652 | send_msg(conn->fd_out, &msg); |
3a7fe5ba | 653 | debug3("Sent message SSH2_FXP_SYMLINK \"%s\" -> \"%s\"", oldpath, |
654 | newpath); | |
655 | buffer_free(&msg); | |
656 | ||
22e6c827 | 657 | status = get_status(conn->fd_in, id); |
3a7fe5ba | 658 | if (status != SSH2_FX_OK) |
9db1a8e9 | 659 | error("Couldn't symlink file \"%s\" to \"%s\": %s", oldpath, |
22e6c827 | 660 | newpath, fx2txt(status)); |
3a7fe5ba | 661 | |
662 | return(status); | |
663 | } | |
664 | ||
665 | char * | |
22e6c827 | 666 | do_readlink(struct sftp_conn *conn, char *path) |
3a7fe5ba | 667 | { |
668 | Buffer msg; | |
669 | u_int type, expected_id, count, id; | |
670 | char *filename, *longname; | |
671 | Attrib *a; | |
672 | ||
22e6c827 | 673 | expected_id = id = conn->msg_id++; |
674 | send_string_request(conn->fd_out, id, SSH2_FXP_READLINK, path, | |
675 | strlen(path)); | |
3a7fe5ba | 676 | |
677 | buffer_init(&msg); | |
678 | ||
22e6c827 | 679 | get_msg(conn->fd_in, &msg); |
3a7fe5ba | 680 | type = buffer_get_char(&msg); |
681 | id = buffer_get_int(&msg); | |
682 | ||
683 | if (id != expected_id) | |
9906a836 | 684 | fatal("ID mismatch (%u != %u)", id, expected_id); |
3a7fe5ba | 685 | |
686 | if (type == SSH2_FXP_STATUS) { | |
687 | u_int status = buffer_get_int(&msg); | |
688 | ||
689 | error("Couldn't readlink: %s", fx2txt(status)); | |
690 | return(NULL); | |
691 | } else if (type != SSH2_FXP_NAME) | |
9906a836 | 692 | fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", |
3a7fe5ba | 693 | SSH2_FXP_NAME, type); |
694 | ||
695 | count = buffer_get_int(&msg); | |
696 | if (count != 1) | |
697 | fatal("Got multiple names (%d) from SSH_FXP_READLINK", count); | |
698 | ||
699 | filename = buffer_get_string(&msg, NULL); | |
700 | longname = buffer_get_string(&msg, NULL); | |
701 | a = decode_attrib(&msg); | |
702 | ||
703 | debug3("SSH_FXP_READLINK %s -> %s", path, filename); | |
704 | ||
705 | xfree(longname); | |
706 | ||
707 | buffer_free(&msg); | |
708 | ||
709 | return(filename); | |
710 | } | |
711 | ||
c25d3df7 | 712 | static void |
713 | send_read_request(int fd_out, u_int id, u_int64_t offset, u_int len, | |
714 | char *handle, u_int handle_len) | |
715 | { | |
716 | Buffer msg; | |
762715ce | 717 | |
c25d3df7 | 718 | buffer_init(&msg); |
719 | buffer_clear(&msg); | |
720 | buffer_put_char(&msg, SSH2_FXP_READ); | |
721 | buffer_put_int(&msg, id); | |
722 | buffer_put_string(&msg, handle, handle_len); | |
723 | buffer_put_int64(&msg, offset); | |
724 | buffer_put_int(&msg, len); | |
725 | send_msg(fd_out, &msg); | |
726 | buffer_free(&msg); | |
762715ce | 727 | } |
c25d3df7 | 728 | |
61e96248 | 729 | int |
22e6c827 | 730 | do_download(struct sftp_conn *conn, char *remote_path, char *local_path, |
731 | int pflag) | |
61e96248 | 732 | { |
61e96248 | 733 | Attrib junk, *a; |
c25d3df7 | 734 | Buffer msg; |
735 | char *handle; | |
736 | int local_fd, status, num_req, max_req, write_error; | |
737 | int read_error, write_errno; | |
738 | u_int64_t offset, size; | |
22e6c827 | 739 | u_int handle_len, mode, type, id, buflen; |
b65c3807 | 740 | off_t progress_counter; |
c25d3df7 | 741 | struct request { |
742 | u_int id; | |
743 | u_int len; | |
744 | u_int64_t offset; | |
762715ce | 745 | TAILQ_ENTRY(request) tq; |
c25d3df7 | 746 | }; |
747 | TAILQ_HEAD(reqhead, request) requests; | |
748 | struct request *req; | |
749 | ||
750 | TAILQ_INIT(&requests); | |
61e96248 | 751 | |
22e6c827 | 752 | a = do_stat(conn, remote_path, 0); |
61e96248 | 753 | if (a == NULL) |
754 | return(-1); | |
755 | ||
756 | /* XXX: should we preserve set[ug]id? */ | |
757 | if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) | |
bfd934b9 | 758 | mode = a->perm & 0777; |
61e96248 | 759 | else |
760 | mode = 0666; | |
761 | ||
d50d9b63 | 762 | if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) && |
538840a2 | 763 | (!S_ISREG(a->perm))) { |
764 | error("Cannot download non-regular file: %s", remote_path); | |
d50d9b63 | 765 | return(-1); |
766 | } | |
767 | ||
c25d3df7 | 768 | if (a->flags & SSH2_FILEXFER_ATTR_SIZE) |
769 | size = a->size; | |
770 | else | |
771 | size = 0; | |
772 | ||
22e6c827 | 773 | buflen = conn->transfer_buflen; |
61e96248 | 774 | buffer_init(&msg); |
775 | ||
776 | /* Send open request */ | |
22e6c827 | 777 | id = conn->msg_id++; |
61e96248 | 778 | buffer_put_char(&msg, SSH2_FXP_OPEN); |
779 | buffer_put_int(&msg, id); | |
780 | buffer_put_cstring(&msg, remote_path); | |
781 | buffer_put_int(&msg, SSH2_FXF_READ); | |
782 | attrib_clear(&junk); /* Send empty attributes */ | |
783 | encode_attrib(&msg, &junk); | |
22e6c827 | 784 | send_msg(conn->fd_out, &msg); |
9906a836 | 785 | debug3("Sent message SSH2_FXP_OPEN I:%u P:%s", id, remote_path); |
61e96248 | 786 | |
22e6c827 | 787 | handle = get_handle(conn->fd_in, id, &handle_len); |
61e96248 | 788 | if (handle == NULL) { |
789 | buffer_free(&msg); | |
61e96248 | 790 | return(-1); |
791 | } | |
792 | ||
aff51935 | 793 | local_fd = open(local_path, O_WRONLY | O_CREAT | O_TRUNC, |
bfd934b9 | 794 | mode | S_IWRITE); |
22e6c827 | 795 | if (local_fd == -1) { |
796 | error("Couldn't open local file \"%s\" for writing: %s", | |
797 | local_path, strerror(errno)); | |
f60ace9f | 798 | buffer_free(&msg); |
799 | xfree(handle); | |
22e6c827 | 800 | return(-1); |
801 | } | |
802 | ||
61e96248 | 803 | /* Read from remote and write to local */ |
c25d3df7 | 804 | write_error = read_error = write_errno = num_req = offset = 0; |
805 | max_req = 1; | |
b65c3807 | 806 | progress_counter = 0; |
807 | ||
808 | if (showprogress) { | |
809 | if (size) | |
810 | start_progress_meter(remote_path, size, | |
811 | &progress_counter); | |
812 | else | |
813 | printf("Fetching %s to %s\n", remote_path, local_path); | |
814 | } | |
815 | ||
c25d3df7 | 816 | while (num_req > 0 || max_req > 0) { |
61e96248 | 817 | char *data; |
c25d3df7 | 818 | u_int len; |
61e96248 | 819 | |
c25d3df7 | 820 | /* Send some more requests */ |
821 | while (num_req < max_req) { | |
762715ce | 822 | debug3("Request range %llu -> %llu (%d/%d)", |
8627f3e0 | 823 | (unsigned long long)offset, |
824 | (unsigned long long)offset + buflen - 1, | |
825 | num_req, max_req); | |
c25d3df7 | 826 | req = xmalloc(sizeof(*req)); |
22e6c827 | 827 | req->id = conn->msg_id++; |
c25d3df7 | 828 | req->len = buflen; |
829 | req->offset = offset; | |
830 | offset += buflen; | |
831 | num_req++; | |
832 | TAILQ_INSERT_TAIL(&requests, req, tq); | |
762715ce | 833 | send_read_request(conn->fd_out, req->id, req->offset, |
c25d3df7 | 834 | req->len, handle, handle_len); |
835 | } | |
61e96248 | 836 | |
837 | buffer_clear(&msg); | |
22e6c827 | 838 | get_msg(conn->fd_in, &msg); |
61e96248 | 839 | type = buffer_get_char(&msg); |
840 | id = buffer_get_int(&msg); | |
9906a836 | 841 | debug3("Received reply T:%u I:%u R:%d", type, id, max_req); |
c25d3df7 | 842 | |
843 | /* Find the request in our queue */ | |
844 | for(req = TAILQ_FIRST(&requests); | |
845 | req != NULL && req->id != id; | |
846 | req = TAILQ_NEXT(req, tq)) | |
847 | ; | |
848 | if (req == NULL) | |
849 | fatal("Unexpected reply %u", id); | |
850 | ||
851 | switch (type) { | |
852 | case SSH2_FXP_STATUS: | |
0426a3b4 | 853 | status = buffer_get_int(&msg); |
c25d3df7 | 854 | if (status != SSH2_FX_EOF) |
855 | read_error = 1; | |
856 | max_req = 0; | |
857 | TAILQ_REMOVE(&requests, req, tq); | |
858 | xfree(req); | |
859 | num_req--; | |
860 | break; | |
861 | case SSH2_FXP_DATA: | |
862 | data = buffer_get_string(&msg, &len); | |
bfa7f960 | 863 | debug3("Received data %llu -> %llu", |
762715ce | 864 | (unsigned long long)req->offset, |
bfa7f960 | 865 | (unsigned long long)req->offset + len - 1); |
c25d3df7 | 866 | if (len > req->len) |
867 | fatal("Received more data than asked for " | |
b77a87e5 | 868 | "%u > %u", len, req->len); |
c25d3df7 | 869 | if ((lseek(local_fd, req->offset, SEEK_SET) == -1 || |
dc54438a | 870 | atomicio(vwrite, local_fd, data, len) != len) && |
c25d3df7 | 871 | !write_error) { |
872 | write_errno = errno; | |
873 | write_error = 1; | |
874 | max_req = 0; | |
875 | } | |
b65c3807 | 876 | progress_counter += len; |
c25d3df7 | 877 | xfree(data); |
61e96248 | 878 | |
c25d3df7 | 879 | if (len == req->len) { |
880 | TAILQ_REMOVE(&requests, req, tq); | |
881 | xfree(req); | |
882 | num_req--; | |
883 | } else { | |
884 | /* Resend the request for the missing data */ | |
885 | debug3("Short data block, re-requesting " | |
bfa7f960 | 886 | "%llu -> %llu (%2d)", |
762715ce | 887 | (unsigned long long)req->offset + len, |
5fc7dbc9 | 888 | (unsigned long long)req->offset + |
889 | req->len - 1, num_req); | |
22e6c827 | 890 | req->id = conn->msg_id++; |
c25d3df7 | 891 | req->len -= len; |
892 | req->offset += len; | |
762715ce | 893 | send_read_request(conn->fd_out, req->id, |
22e6c827 | 894 | req->offset, req->len, handle, handle_len); |
c25d3df7 | 895 | /* Reduce the request size */ |
896 | if (len < buflen) | |
897 | buflen = MAX(MIN_READ_SIZE, len); | |
898 | } | |
899 | if (max_req > 0) { /* max_req = 0 iff EOF received */ | |
900 | if (size > 0 && offset > size) { | |
901 | /* Only one request at a time | |
902 | * after the expected EOF */ | |
903 | debug3("Finish at %llu (%2d)", | |
bfa7f960 | 904 | (unsigned long long)offset, |
905 | num_req); | |
c25d3df7 | 906 | max_req = 1; |
907 | } | |
22e6c827 | 908 | else if (max_req < conn->num_requests + 1) { |
c25d3df7 | 909 | ++max_req; |
910 | } | |
61e96248 | 911 | } |
c25d3df7 | 912 | break; |
913 | default: | |
9906a836 | 914 | fatal("Expected SSH2_FXP_DATA(%u) packet, got %u", |
61e96248 | 915 | SSH2_FXP_DATA, type); |
916 | } | |
61e96248 | 917 | } |
61e96248 | 918 | |
b65c3807 | 919 | if (showprogress && size) |
920 | stop_progress_meter(); | |
921 | ||
c25d3df7 | 922 | /* Sanity check */ |
923 | if (TAILQ_FIRST(&requests) != NULL) | |
924 | fatal("Transfer complete, but requests still in queue"); | |
925 | ||
926 | if (read_error) { | |
762715ce | 927 | error("Couldn't read from remote file \"%s\" : %s", |
22e6c827 | 928 | remote_path, fx2txt(status)); |
929 | do_close(conn, handle, handle_len); | |
c25d3df7 | 930 | } else if (write_error) { |
22e6c827 | 931 | error("Couldn't write to \"%s\": %s", local_path, |
932 | strerror(write_errno)); | |
933 | status = -1; | |
934 | do_close(conn, handle, handle_len); | |
c25d3df7 | 935 | } else { |
22e6c827 | 936 | status = do_close(conn, handle, handle_len); |
c25d3df7 | 937 | |
938 | /* Override umask and utimes if asked */ | |
663fd560 | 939 | #ifdef HAVE_FCHMOD |
c25d3df7 | 940 | if (pflag && fchmod(local_fd, mode) == -1) |
aff51935 | 941 | #else |
c25d3df7 | 942 | if (pflag && chmod(local_path, mode) == -1) |
663fd560 | 943 | #endif /* HAVE_FCHMOD */ |
c25d3df7 | 944 | error("Couldn't set mode on \"%s\": %s", local_path, |
b77a87e5 | 945 | strerror(errno)); |
c25d3df7 | 946 | if (pflag && (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME)) { |
947 | struct timeval tv[2]; | |
948 | tv[0].tv_sec = a->atime; | |
949 | tv[1].tv_sec = a->mtime; | |
950 | tv[0].tv_usec = tv[1].tv_usec = 0; | |
951 | if (utimes(local_path, tv) == -1) | |
952 | error("Can't set times on \"%s\": %s", | |
b77a87e5 | 953 | local_path, strerror(errno)); |
c25d3df7 | 954 | } |
58c54a79 | 955 | } |
0426a3b4 | 956 | close(local_fd); |
957 | buffer_free(&msg); | |
958 | xfree(handle); | |
22e6c827 | 959 | |
960 | return(status); | |
61e96248 | 961 | } |
962 | ||
963 | int | |
22e6c827 | 964 | do_upload(struct sftp_conn *conn, char *local_path, char *remote_path, |
965 | int pflag) | |
61e96248 | 966 | { |
375f867e | 967 | int local_fd, status; |
b2bab059 | 968 | u_int handle_len, id, type; |
61e96248 | 969 | u_int64_t offset; |
375f867e | 970 | char *handle, *data; |
61e96248 | 971 | Buffer msg; |
972 | struct stat sb; | |
973 | Attrib a; | |
c25d3df7 | 974 | u_int32_t startid; |
975 | u_int32_t ackid; | |
b2bab059 | 976 | struct outstanding_ack { |
977 | u_int id; | |
978 | u_int len; | |
979 | u_int64_t offset; | |
762715ce | 980 | TAILQ_ENTRY(outstanding_ack) tq; |
b2bab059 | 981 | }; |
982 | TAILQ_HEAD(ackhead, outstanding_ack) acks; | |
983 | struct outstanding_ack *ack; | |
984 | ||
985 | TAILQ_INIT(&acks); | |
61e96248 | 986 | |
987 | if ((local_fd = open(local_path, O_RDONLY, 0)) == -1) { | |
988 | error("Couldn't open local file \"%s\" for reading: %s", | |
989 | local_path, strerror(errno)); | |
990 | return(-1); | |
991 | } | |
992 | if (fstat(local_fd, &sb) == -1) { | |
993 | error("Couldn't fstat local file \"%s\": %s", | |
994 | local_path, strerror(errno)); | |
995 | close(local_fd); | |
996 | return(-1); | |
997 | } | |
538840a2 | 998 | if (!S_ISREG(sb.st_mode)) { |
999 | error("%s is not a regular file", local_path); | |
1000 | close(local_fd); | |
1001 | return(-1); | |
1002 | } | |
61e96248 | 1003 | stat_to_attrib(&sb, &a); |
1004 | ||
1005 | a.flags &= ~SSH2_FILEXFER_ATTR_SIZE; | |
1006 | a.flags &= ~SSH2_FILEXFER_ATTR_UIDGID; | |
1007 | a.perm &= 0777; | |
1008 | if (!pflag) | |
1009 | a.flags &= ~SSH2_FILEXFER_ATTR_ACMODTIME; | |
1010 | ||
1011 | buffer_init(&msg); | |
1012 | ||
1013 | /* Send open request */ | |
22e6c827 | 1014 | id = conn->msg_id++; |
61e96248 | 1015 | buffer_put_char(&msg, SSH2_FXP_OPEN); |
1016 | buffer_put_int(&msg, id); | |
1017 | buffer_put_cstring(&msg, remote_path); | |
1018 | buffer_put_int(&msg, SSH2_FXF_WRITE|SSH2_FXF_CREAT|SSH2_FXF_TRUNC); | |
1019 | encode_attrib(&msg, &a); | |
22e6c827 | 1020 | send_msg(conn->fd_out, &msg); |
9906a836 | 1021 | debug3("Sent message SSH2_FXP_OPEN I:%u P:%s", id, remote_path); |
61e96248 | 1022 | |
1023 | buffer_clear(&msg); | |
1024 | ||
22e6c827 | 1025 | handle = get_handle(conn->fd_in, id, &handle_len); |
61e96248 | 1026 | if (handle == NULL) { |
1027 | close(local_fd); | |
1028 | buffer_free(&msg); | |
1029 | return(-1); | |
1030 | } | |
1031 | ||
c25d3df7 | 1032 | startid = ackid = id + 1; |
22e6c827 | 1033 | data = xmalloc(conn->transfer_buflen); |
375f867e | 1034 | |
61e96248 | 1035 | /* Read from local and write to remote */ |
1036 | offset = 0; | |
b65c3807 | 1037 | if (showprogress) |
1038 | start_progress_meter(local_path, sb.st_size, &offset); | |
1039 | else | |
1040 | printf("Uploading %s to %s\n", local_path, remote_path); | |
1041 | ||
184eed6a | 1042 | for (;;) { |
61e96248 | 1043 | int len; |
61e96248 | 1044 | |
1045 | /* | |
1046 | * Can't use atomicio here because it returns 0 on EOF, thus losing | |
1047 | * the last block of the file | |
1048 | */ | |
1049 | do | |
22e6c827 | 1050 | len = read(local_fd, data, conn->transfer_buflen); |
61e96248 | 1051 | while ((len == -1) && (errno == EINTR || errno == EAGAIN)); |
1052 | ||
1053 | if (len == -1) | |
1054 | fatal("Couldn't read from \"%s\": %s", local_path, | |
1055 | strerror(errno)); | |
c25d3df7 | 1056 | |
1057 | if (len != 0) { | |
b2bab059 | 1058 | ack = xmalloc(sizeof(*ack)); |
1059 | ack->id = ++id; | |
1060 | ack->offset = offset; | |
1061 | ack->len = len; | |
1062 | TAILQ_INSERT_TAIL(&acks, ack, tq); | |
1063 | ||
c25d3df7 | 1064 | buffer_clear(&msg); |
1065 | buffer_put_char(&msg, SSH2_FXP_WRITE); | |
b2bab059 | 1066 | buffer_put_int(&msg, ack->id); |
c25d3df7 | 1067 | buffer_put_string(&msg, handle, handle_len); |
1068 | buffer_put_int64(&msg, offset); | |
1069 | buffer_put_string(&msg, data, len); | |
22e6c827 | 1070 | send_msg(conn->fd_out, &msg); |
9906a836 | 1071 | debug3("Sent message SSH2_FXP_WRITE I:%u O:%llu S:%u", |
b77a87e5 | 1072 | id, (unsigned long long)offset, len); |
b2bab059 | 1073 | } else if (TAILQ_FIRST(&acks) == NULL) |
61e96248 | 1074 | break; |
1075 | ||
b2bab059 | 1076 | if (ack == NULL) |
1077 | fatal("Unexpected ACK %u", id); | |
1078 | ||
762715ce | 1079 | if (id == startid || len == 0 || |
22e6c827 | 1080 | id - ackid >= conn->num_requests) { |
875ec275 | 1081 | u_int r_id; |
af2b3cd9 | 1082 | |
b2bab059 | 1083 | buffer_clear(&msg); |
22e6c827 | 1084 | get_msg(conn->fd_in, &msg); |
b2bab059 | 1085 | type = buffer_get_char(&msg); |
af2b3cd9 | 1086 | r_id = buffer_get_int(&msg); |
b2bab059 | 1087 | |
1088 | if (type != SSH2_FXP_STATUS) | |
1089 | fatal("Expected SSH2_FXP_STATUS(%d) packet, " | |
1090 | "got %d", SSH2_FXP_STATUS, type); | |
1091 | ||
1092 | status = buffer_get_int(&msg); | |
1093 | debug3("SSH2_FXP_STATUS %d", status); | |
1094 | ||
1095 | /* Find the request in our queue */ | |
1096 | for(ack = TAILQ_FIRST(&acks); | |
af2b3cd9 | 1097 | ack != NULL && ack->id != r_id; |
b2bab059 | 1098 | ack = TAILQ_NEXT(ack, tq)) |
1099 | ; | |
1100 | if (ack == NULL) | |
9906a836 | 1101 | fatal("Can't find request for ID %u", r_id); |
b2bab059 | 1102 | TAILQ_REMOVE(&acks, ack, tq); |
1103 | ||
c25d3df7 | 1104 | if (status != SSH2_FX_OK) { |
1105 | error("Couldn't write to remote file \"%s\": %s", | |
b77a87e5 | 1106 | remote_path, fx2txt(status)); |
22e6c827 | 1107 | do_close(conn, handle, handle_len); |
c25d3df7 | 1108 | close(local_fd); |
3e2f2431 | 1109 | xfree(data); |
1110 | xfree(ack); | |
c25d3df7 | 1111 | goto done; |
1112 | } | |
9906a836 | 1113 | debug3("In write loop, ack for %u %u bytes at %llu", |
bfa7f960 | 1114 | ack->id, ack->len, (unsigned long long)ack->offset); |
c25d3df7 | 1115 | ++ackid; |
30e37ee6 | 1116 | xfree(ack); |
61e96248 | 1117 | } |
61e96248 | 1118 | offset += len; |
1119 | } | |
b65c3807 | 1120 | if (showprogress) |
1121 | stop_progress_meter(); | |
375f867e | 1122 | xfree(data); |
61e96248 | 1123 | |
1124 | if (close(local_fd) == -1) { | |
1125 | error("Couldn't close local file \"%s\": %s", local_path, | |
1126 | strerror(errno)); | |
22e6c827 | 1127 | do_close(conn, handle, handle_len); |
0426a3b4 | 1128 | status = -1; |
1129 | goto done; | |
61e96248 | 1130 | } |
1131 | ||
58c54a79 | 1132 | /* Override umask and utimes if asked */ |
1133 | if (pflag) | |
22e6c827 | 1134 | do_fsetstat(conn, handle, handle_len, &a); |
58c54a79 | 1135 | |
22e6c827 | 1136 | status = do_close(conn, handle, handle_len); |
0426a3b4 | 1137 | |
1138 | done: | |
1139 | xfree(handle); | |
1140 | buffer_free(&msg); | |
22e6c827 | 1141 | return(status); |
61e96248 | 1142 | } |