]>
Commit | Line | Data |
---|---|---|
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" | |
f8cc7664 | 23 | RCSID("$OpenBSD: sftp-client.c,v 1.53 2005/03/10 22:01:05 deraadt 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)); | |
aa41be57 | 175 | buffer_free(&msg); |
61e96248 | 176 | return(NULL); |
177 | } else if (type != SSH2_FXP_HANDLE) | |
9906a836 | 178 | fatal("Expected SSH2_FXP_HANDLE(%u) packet, got %u", |
61e96248 | 179 | SSH2_FXP_HANDLE, type); |
180 | ||
181 | handle = buffer_get_string(&msg, len); | |
182 | buffer_free(&msg); | |
183 | ||
184 | return(handle); | |
185 | } | |
186 | ||
396c147e | 187 | static Attrib * |
d50d9b63 | 188 | get_decode_stat(int fd, u_int expected_id, int quiet) |
61e96248 | 189 | { |
190 | Buffer msg; | |
191 | u_int type, id; | |
192 | Attrib *a; | |
193 | ||
194 | buffer_init(&msg); | |
195 | get_msg(fd, &msg); | |
196 | ||
197 | type = buffer_get_char(&msg); | |
198 | id = buffer_get_int(&msg); | |
199 | ||
9906a836 | 200 | debug3("Received stat reply T:%u I:%u", type, id); |
61e96248 | 201 | if (id != expected_id) |
9906a836 | 202 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 203 | if (type == SSH2_FXP_STATUS) { |
204 | int status = buffer_get_int(&msg); | |
205 | ||
d50d9b63 | 206 | if (quiet) |
207 | debug("Couldn't stat remote file: %s", fx2txt(status)); | |
208 | else | |
209 | error("Couldn't stat remote file: %s", fx2txt(status)); | |
aa41be57 | 210 | buffer_free(&msg); |
61e96248 | 211 | return(NULL); |
212 | } else if (type != SSH2_FXP_ATTRS) { | |
9906a836 | 213 | fatal("Expected SSH2_FXP_ATTRS(%u) packet, got %u", |
61e96248 | 214 | SSH2_FXP_ATTRS, type); |
215 | } | |
216 | a = decode_attrib(&msg); | |
217 | buffer_free(&msg); | |
218 | ||
219 | return(a); | |
220 | } | |
221 | ||
22e6c827 | 222 | struct sftp_conn * |
223 | do_init(int fd_in, int fd_out, u_int transfer_buflen, u_int num_requests) | |
61e96248 | 224 | { |
9906a836 | 225 | u_int type; |
226 | int version; | |
61e96248 | 227 | Buffer msg; |
22e6c827 | 228 | struct sftp_conn *ret; |
61e96248 | 229 | |
230 | buffer_init(&msg); | |
231 | buffer_put_char(&msg, SSH2_FXP_INIT); | |
232 | buffer_put_int(&msg, SSH2_FILEXFER_VERSION); | |
233 | send_msg(fd_out, &msg); | |
234 | ||
235 | buffer_clear(&msg); | |
236 | ||
237 | get_msg(fd_in, &msg); | |
238 | ||
2b87da3b | 239 | /* Expecting a VERSION reply */ |
61e96248 | 240 | if ((type = buffer_get_char(&msg)) != SSH2_FXP_VERSION) { |
9906a836 | 241 | error("Invalid packet back from SSH2_FXP_INIT (type %u)", |
61e96248 | 242 | type); |
243 | buffer_free(&msg); | |
22e6c827 | 244 | return(NULL); |
61e96248 | 245 | } |
246 | version = buffer_get_int(&msg); | |
247 | ||
248 | debug2("Remote version: %d", version); | |
249 | ||
250 | /* Check for extensions */ | |
251 | while (buffer_len(&msg) > 0) { | |
252 | char *name = buffer_get_string(&msg, NULL); | |
253 | char *value = buffer_get_string(&msg, NULL); | |
254 | ||
255 | debug2("Init extension: \"%s\"", name); | |
256 | xfree(name); | |
257 | xfree(value); | |
258 | } | |
259 | ||
260 | buffer_free(&msg); | |
3a7fe5ba | 261 | |
22e6c827 | 262 | ret = xmalloc(sizeof(*ret)); |
263 | ret->fd_in = fd_in; | |
264 | ret->fd_out = fd_out; | |
265 | ret->transfer_buflen = transfer_buflen; | |
266 | ret->num_requests = num_requests; | |
267 | ret->version = version; | |
268 | ret->msg_id = 1; | |
269 | ||
270 | /* Some filexfer v.0 servers don't support large packets */ | |
271 | if (version == 0) | |
92053302 | 272 | ret->transfer_buflen = MIN(ret->transfer_buflen, 20480); |
22e6c827 | 273 | |
274 | return(ret); | |
275 | } | |
276 | ||
277 | u_int | |
278 | sftp_proto_version(struct sftp_conn *conn) | |
279 | { | |
280 | return(conn->version); | |
61e96248 | 281 | } |
282 | ||
283 | int | |
22e6c827 | 284 | do_close(struct sftp_conn *conn, char *handle, u_int handle_len) |
61e96248 | 285 | { |
286 | u_int id, status; | |
287 | Buffer msg; | |
288 | ||
289 | buffer_init(&msg); | |
290 | ||
22e6c827 | 291 | id = conn->msg_id++; |
61e96248 | 292 | buffer_put_char(&msg, SSH2_FXP_CLOSE); |
293 | buffer_put_int(&msg, id); | |
294 | buffer_put_string(&msg, handle, handle_len); | |
22e6c827 | 295 | send_msg(conn->fd_out, &msg); |
9906a836 | 296 | debug3("Sent message SSH2_FXP_CLOSE I:%u", id); |
61e96248 | 297 | |
22e6c827 | 298 | status = get_status(conn->fd_in, id); |
61e96248 | 299 | if (status != SSH2_FX_OK) |
300 | error("Couldn't close file: %s", fx2txt(status)); | |
301 | ||
302 | buffer_free(&msg); | |
303 | ||
304 | return(status); | |
305 | } | |
306 | ||
2e4fb373 | 307 | |
396c147e | 308 | static int |
22e6c827 | 309 | do_lsreaddir(struct sftp_conn *conn, char *path, int printflag, |
2e4fb373 | 310 | SFTP_DIRENT ***dir) |
61e96248 | 311 | { |
312 | Buffer msg; | |
4cb5d598 | 313 | u_int type, id, handle_len, i, expected_id, ents = 0; |
61e96248 | 314 | char *handle; |
315 | ||
22e6c827 | 316 | id = conn->msg_id++; |
61e96248 | 317 | |
318 | buffer_init(&msg); | |
319 | buffer_put_char(&msg, SSH2_FXP_OPENDIR); | |
320 | buffer_put_int(&msg, id); | |
321 | buffer_put_cstring(&msg, path); | |
22e6c827 | 322 | send_msg(conn->fd_out, &msg); |
61e96248 | 323 | |
324 | buffer_clear(&msg); | |
325 | ||
22e6c827 | 326 | handle = get_handle(conn->fd_in, id, &handle_len); |
61e96248 | 327 | if (handle == NULL) |
328 | return(-1); | |
329 | ||
2e4fb373 | 330 | if (dir) { |
331 | ents = 0; | |
332 | *dir = xmalloc(sizeof(**dir)); | |
333 | (*dir)[0] = NULL; | |
334 | } | |
2e4fb373 | 335 | |
0e5de6f8 | 336 | for (; !interrupted;) { |
61e96248 | 337 | int count; |
338 | ||
22e6c827 | 339 | id = expected_id = conn->msg_id++; |
61e96248 | 340 | |
9906a836 | 341 | debug3("Sending SSH2_FXP_READDIR I:%u", id); |
61e96248 | 342 | |
343 | buffer_clear(&msg); | |
344 | buffer_put_char(&msg, SSH2_FXP_READDIR); | |
345 | buffer_put_int(&msg, id); | |
346 | buffer_put_string(&msg, handle, handle_len); | |
22e6c827 | 347 | send_msg(conn->fd_out, &msg); |
61e96248 | 348 | |
349 | buffer_clear(&msg); | |
350 | ||
22e6c827 | 351 | get_msg(conn->fd_in, &msg); |
61e96248 | 352 | |
353 | type = buffer_get_char(&msg); | |
354 | id = buffer_get_int(&msg); | |
355 | ||
9906a836 | 356 | debug3("Received reply T:%u I:%u", type, id); |
61e96248 | 357 | |
358 | if (id != expected_id) | |
9906a836 | 359 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 360 | |
361 | if (type == SSH2_FXP_STATUS) { | |
362 | int status = buffer_get_int(&msg); | |
363 | ||
364 | debug3("Received SSH2_FXP_STATUS %d", status); | |
365 | ||
366 | if (status == SSH2_FX_EOF) { | |
367 | break; | |
368 | } else { | |
369 | error("Couldn't read directory: %s", | |
370 | fx2txt(status)); | |
22e6c827 | 371 | do_close(conn, handle, handle_len); |
3e2f2431 | 372 | xfree(handle); |
b655a207 | 373 | return(status); |
61e96248 | 374 | } |
375 | } else if (type != SSH2_FXP_NAME) | |
9906a836 | 376 | fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", |
61e96248 | 377 | SSH2_FXP_NAME, type); |
378 | ||
379 | count = buffer_get_int(&msg); | |
0426a3b4 | 380 | if (count == 0) |
381 | break; | |
382 | debug3("Received %d SSH2_FXP_NAME responses", count); | |
184eed6a | 383 | for (i = 0; i < count; i++) { |
61e96248 | 384 | char *filename, *longname; |
385 | Attrib *a; | |
386 | ||
387 | filename = buffer_get_string(&msg, NULL); | |
388 | longname = buffer_get_string(&msg, NULL); | |
389 | a = decode_attrib(&msg); | |
390 | ||
2e4fb373 | 391 | if (printflag) |
392 | printf("%s\n", longname); | |
393 | ||
394 | if (dir) { | |
cd332296 | 395 | *dir = xrealloc(*dir, sizeof(**dir) * |
2e4fb373 | 396 | (ents + 2)); |
397 | (*dir)[ents] = xmalloc(sizeof(***dir)); | |
398 | (*dir)[ents]->filename = xstrdup(filename); | |
399 | (*dir)[ents]->longname = xstrdup(longname); | |
400 | memcpy(&(*dir)[ents]->a, a, sizeof(*a)); | |
401 | (*dir)[++ents] = NULL; | |
402 | } | |
61e96248 | 403 | |
404 | xfree(filename); | |
405 | xfree(longname); | |
406 | } | |
407 | } | |
408 | ||
409 | buffer_free(&msg); | |
22e6c827 | 410 | do_close(conn, handle, handle_len); |
61e96248 | 411 | xfree(handle); |
412 | ||
0e5de6f8 | 413 | /* Don't return partial matches on interrupt */ |
414 | if (interrupted && dir != NULL && *dir != NULL) { | |
415 | free_sftp_dirents(*dir); | |
416 | *dir = xmalloc(sizeof(**dir)); | |
417 | **dir = NULL; | |
418 | } | |
419 | ||
61e96248 | 420 | return(0); |
421 | } | |
422 | ||
2e4fb373 | 423 | int |
22e6c827 | 424 | do_readdir(struct sftp_conn *conn, char *path, SFTP_DIRENT ***dir) |
2e4fb373 | 425 | { |
22e6c827 | 426 | return(do_lsreaddir(conn, path, 0, dir)); |
2e4fb373 | 427 | } |
428 | ||
429 | void free_sftp_dirents(SFTP_DIRENT **s) | |
430 | { | |
431 | int i; | |
184eed6a | 432 | |
433 | for (i = 0; s[i]; i++) { | |
2e4fb373 | 434 | xfree(s[i]->filename); |
435 | xfree(s[i]->longname); | |
436 | xfree(s[i]); | |
437 | } | |
438 | xfree(s); | |
439 | } | |
440 | ||
61e96248 | 441 | int |
22e6c827 | 442 | do_rm(struct sftp_conn *conn, char *path) |
61e96248 | 443 | { |
444 | u_int status, id; | |
445 | ||
446 | debug2("Sending SSH2_FXP_REMOVE \"%s\"", path); | |
447 | ||
22e6c827 | 448 | id = conn->msg_id++; |
762715ce | 449 | send_string_request(conn->fd_out, id, SSH2_FXP_REMOVE, path, |
22e6c827 | 450 | strlen(path)); |
451 | status = get_status(conn->fd_in, id); | |
61e96248 | 452 | if (status != SSH2_FX_OK) |
453 | error("Couldn't delete file: %s", fx2txt(status)); | |
454 | return(status); | |
455 | } | |
456 | ||
457 | int | |
22e6c827 | 458 | do_mkdir(struct sftp_conn *conn, char *path, Attrib *a) |
61e96248 | 459 | { |
460 | u_int status, id; | |
461 | ||
22e6c827 | 462 | id = conn->msg_id++; |
463 | send_string_attrs_request(conn->fd_out, id, SSH2_FXP_MKDIR, path, | |
61e96248 | 464 | strlen(path), a); |
465 | ||
22e6c827 | 466 | status = get_status(conn->fd_in, id); |
61e96248 | 467 | if (status != SSH2_FX_OK) |
468 | error("Couldn't create directory: %s", fx2txt(status)); | |
469 | ||
470 | return(status); | |
471 | } | |
472 | ||
473 | int | |
22e6c827 | 474 | do_rmdir(struct sftp_conn *conn, char *path) |
61e96248 | 475 | { |
476 | u_int status, id; | |
477 | ||
22e6c827 | 478 | id = conn->msg_id++; |
479 | send_string_request(conn->fd_out, id, SSH2_FXP_RMDIR, path, | |
480 | strlen(path)); | |
61e96248 | 481 | |
22e6c827 | 482 | status = get_status(conn->fd_in, id); |
61e96248 | 483 | if (status != SSH2_FX_OK) |
484 | error("Couldn't remove directory: %s", fx2txt(status)); | |
485 | ||
486 | return(status); | |
487 | } | |
488 | ||
489 | Attrib * | |
22e6c827 | 490 | do_stat(struct sftp_conn *conn, char *path, int quiet) |
61e96248 | 491 | { |
492 | u_int id; | |
493 | ||
22e6c827 | 494 | id = conn->msg_id++; |
495 | ||
762715ce | 496 | send_string_request(conn->fd_out, id, |
497 | conn->version == 0 ? SSH2_FXP_STAT_VERSION_0 : SSH2_FXP_STAT, | |
22e6c827 | 498 | path, strlen(path)); |
499 | ||
500 | return(get_decode_stat(conn->fd_in, id, quiet)); | |
61e96248 | 501 | } |
502 | ||
503 | Attrib * | |
22e6c827 | 504 | do_lstat(struct sftp_conn *conn, char *path, int quiet) |
61e96248 | 505 | { |
506 | u_int id; | |
507 | ||
22e6c827 | 508 | if (conn->version == 0) { |
509 | if (quiet) | |
510 | debug("Server version does not support lstat operation"); | |
511 | else | |
bbe88b6d | 512 | logit("Server version does not support lstat operation"); |
9c74a24d | 513 | return(do_stat(conn, path, quiet)); |
22e6c827 | 514 | } |
515 | ||
516 | id = conn->msg_id++; | |
517 | send_string_request(conn->fd_out, id, SSH2_FXP_LSTAT, path, | |
518 | strlen(path)); | |
519 | ||
520 | return(get_decode_stat(conn->fd_in, id, quiet)); | |
61e96248 | 521 | } |
522 | ||
523 | Attrib * | |
22e6c827 | 524 | do_fstat(struct sftp_conn *conn, char *handle, u_int handle_len, int quiet) |
61e96248 | 525 | { |
526 | u_int id; | |
527 | ||
22e6c827 | 528 | id = conn->msg_id++; |
529 | send_string_request(conn->fd_out, id, SSH2_FXP_FSTAT, handle, | |
530 | handle_len); | |
531 | ||
532 | return(get_decode_stat(conn->fd_in, id, quiet)); | |
61e96248 | 533 | } |
534 | ||
535 | int | |
22e6c827 | 536 | do_setstat(struct sftp_conn *conn, char *path, Attrib *a) |
61e96248 | 537 | { |
538 | u_int status, id; | |
539 | ||
22e6c827 | 540 | id = conn->msg_id++; |
541 | send_string_attrs_request(conn->fd_out, id, SSH2_FXP_SETSTAT, path, | |
61e96248 | 542 | strlen(path), a); |
543 | ||
22e6c827 | 544 | status = get_status(conn->fd_in, id); |
61e96248 | 545 | if (status != SSH2_FX_OK) |
546 | error("Couldn't setstat on \"%s\": %s", path, | |
547 | fx2txt(status)); | |
548 | ||
549 | return(status); | |
550 | } | |
551 | ||
552 | int | |
22e6c827 | 553 | do_fsetstat(struct sftp_conn *conn, char *handle, u_int handle_len, |
61e96248 | 554 | Attrib *a) |
555 | { | |
556 | u_int status, id; | |
557 | ||
22e6c827 | 558 | id = conn->msg_id++; |
559 | send_string_attrs_request(conn->fd_out, id, SSH2_FXP_FSETSTAT, handle, | |
61e96248 | 560 | handle_len, a); |
561 | ||
22e6c827 | 562 | status = get_status(conn->fd_in, id); |
61e96248 | 563 | if (status != SSH2_FX_OK) |
564 | error("Couldn't fsetstat: %s", fx2txt(status)); | |
565 | ||
566 | return(status); | |
567 | } | |
568 | ||
569 | char * | |
22e6c827 | 570 | do_realpath(struct sftp_conn *conn, char *path) |
61e96248 | 571 | { |
572 | Buffer msg; | |
573 | u_int type, expected_id, count, id; | |
574 | char *filename, *longname; | |
575 | Attrib *a; | |
576 | ||
22e6c827 | 577 | expected_id = id = conn->msg_id++; |
578 | send_string_request(conn->fd_out, id, SSH2_FXP_REALPATH, path, | |
579 | strlen(path)); | |
61e96248 | 580 | |
581 | buffer_init(&msg); | |
582 | ||
22e6c827 | 583 | get_msg(conn->fd_in, &msg); |
61e96248 | 584 | type = buffer_get_char(&msg); |
585 | id = buffer_get_int(&msg); | |
586 | ||
587 | if (id != expected_id) | |
9906a836 | 588 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 589 | |
590 | if (type == SSH2_FXP_STATUS) { | |
591 | u_int status = buffer_get_int(&msg); | |
592 | ||
593 | error("Couldn't canonicalise: %s", fx2txt(status)); | |
594 | return(NULL); | |
595 | } else if (type != SSH2_FXP_NAME) | |
9906a836 | 596 | fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", |
61e96248 | 597 | SSH2_FXP_NAME, type); |
598 | ||
599 | count = buffer_get_int(&msg); | |
600 | if (count != 1) | |
601 | fatal("Got multiple names (%d) from SSH_FXP_REALPATH", count); | |
602 | ||
603 | filename = buffer_get_string(&msg, NULL); | |
604 | longname = buffer_get_string(&msg, NULL); | |
605 | a = decode_attrib(&msg); | |
606 | ||
607 | debug3("SSH_FXP_REALPATH %s -> %s", path, filename); | |
608 | ||
609 | xfree(longname); | |
610 | ||
611 | buffer_free(&msg); | |
612 | ||
613 | return(filename); | |
614 | } | |
615 | ||
616 | int | |
22e6c827 | 617 | do_rename(struct sftp_conn *conn, char *oldpath, char *newpath) |
61e96248 | 618 | { |
619 | Buffer msg; | |
620 | u_int status, id; | |
621 | ||
622 | buffer_init(&msg); | |
623 | ||
624 | /* Send rename request */ | |
22e6c827 | 625 | id = conn->msg_id++; |
61e96248 | 626 | buffer_put_char(&msg, SSH2_FXP_RENAME); |
627 | buffer_put_int(&msg, id); | |
628 | buffer_put_cstring(&msg, oldpath); | |
629 | buffer_put_cstring(&msg, newpath); | |
22e6c827 | 630 | send_msg(conn->fd_out, &msg); |
61e96248 | 631 | debug3("Sent message SSH2_FXP_RENAME \"%s\" -> \"%s\"", oldpath, |
632 | newpath); | |
633 | buffer_free(&msg); | |
634 | ||
22e6c827 | 635 | status = get_status(conn->fd_in, id); |
61e96248 | 636 | if (status != SSH2_FX_OK) |
22e6c827 | 637 | error("Couldn't rename file \"%s\" to \"%s\": %s", oldpath, |
638 | newpath, fx2txt(status)); | |
61e96248 | 639 | |
640 | return(status); | |
641 | } | |
642 | ||
3a7fe5ba | 643 | int |
22e6c827 | 644 | do_symlink(struct sftp_conn *conn, char *oldpath, char *newpath) |
3a7fe5ba | 645 | { |
646 | Buffer msg; | |
647 | u_int status, id; | |
648 | ||
22e6c827 | 649 | if (conn->version < 3) { |
650 | error("This server does not support the symlink operation"); | |
651 | return(SSH2_FX_OP_UNSUPPORTED); | |
652 | } | |
653 | ||
3a7fe5ba | 654 | buffer_init(&msg); |
655 | ||
b093b499 | 656 | /* Send symlink request */ |
22e6c827 | 657 | id = conn->msg_id++; |
3a7fe5ba | 658 | buffer_put_char(&msg, SSH2_FXP_SYMLINK); |
659 | buffer_put_int(&msg, id); | |
660 | buffer_put_cstring(&msg, oldpath); | |
661 | buffer_put_cstring(&msg, newpath); | |
22e6c827 | 662 | send_msg(conn->fd_out, &msg); |
3a7fe5ba | 663 | debug3("Sent message SSH2_FXP_SYMLINK \"%s\" -> \"%s\"", oldpath, |
664 | newpath); | |
665 | buffer_free(&msg); | |
666 | ||
22e6c827 | 667 | status = get_status(conn->fd_in, id); |
3a7fe5ba | 668 | if (status != SSH2_FX_OK) |
9db1a8e9 | 669 | error("Couldn't symlink file \"%s\" to \"%s\": %s", oldpath, |
22e6c827 | 670 | newpath, fx2txt(status)); |
3a7fe5ba | 671 | |
672 | return(status); | |
673 | } | |
674 | ||
675 | char * | |
22e6c827 | 676 | do_readlink(struct sftp_conn *conn, char *path) |
3a7fe5ba | 677 | { |
678 | Buffer msg; | |
679 | u_int type, expected_id, count, id; | |
680 | char *filename, *longname; | |
681 | Attrib *a; | |
682 | ||
22e6c827 | 683 | expected_id = id = conn->msg_id++; |
684 | send_string_request(conn->fd_out, id, SSH2_FXP_READLINK, path, | |
685 | strlen(path)); | |
3a7fe5ba | 686 | |
687 | buffer_init(&msg); | |
688 | ||
22e6c827 | 689 | get_msg(conn->fd_in, &msg); |
3a7fe5ba | 690 | type = buffer_get_char(&msg); |
691 | id = buffer_get_int(&msg); | |
692 | ||
693 | if (id != expected_id) | |
9906a836 | 694 | fatal("ID mismatch (%u != %u)", id, expected_id); |
3a7fe5ba | 695 | |
696 | if (type == SSH2_FXP_STATUS) { | |
697 | u_int status = buffer_get_int(&msg); | |
698 | ||
699 | error("Couldn't readlink: %s", fx2txt(status)); | |
700 | return(NULL); | |
701 | } else if (type != SSH2_FXP_NAME) | |
9906a836 | 702 | fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", |
3a7fe5ba | 703 | SSH2_FXP_NAME, type); |
704 | ||
705 | count = buffer_get_int(&msg); | |
706 | if (count != 1) | |
707 | fatal("Got multiple names (%d) from SSH_FXP_READLINK", count); | |
708 | ||
709 | filename = buffer_get_string(&msg, NULL); | |
710 | longname = buffer_get_string(&msg, NULL); | |
711 | a = decode_attrib(&msg); | |
712 | ||
713 | debug3("SSH_FXP_READLINK %s -> %s", path, filename); | |
714 | ||
715 | xfree(longname); | |
716 | ||
717 | buffer_free(&msg); | |
718 | ||
719 | return(filename); | |
720 | } | |
721 | ||
c25d3df7 | 722 | static void |
723 | send_read_request(int fd_out, u_int id, u_int64_t offset, u_int len, | |
724 | char *handle, u_int handle_len) | |
725 | { | |
726 | Buffer msg; | |
762715ce | 727 | |
c25d3df7 | 728 | buffer_init(&msg); |
729 | buffer_clear(&msg); | |
730 | buffer_put_char(&msg, SSH2_FXP_READ); | |
731 | buffer_put_int(&msg, id); | |
732 | buffer_put_string(&msg, handle, handle_len); | |
733 | buffer_put_int64(&msg, offset); | |
734 | buffer_put_int(&msg, len); | |
735 | send_msg(fd_out, &msg); | |
736 | buffer_free(&msg); | |
762715ce | 737 | } |
c25d3df7 | 738 | |
61e96248 | 739 | int |
22e6c827 | 740 | do_download(struct sftp_conn *conn, char *remote_path, char *local_path, |
741 | int pflag) | |
61e96248 | 742 | { |
61e96248 | 743 | Attrib junk, *a; |
c25d3df7 | 744 | Buffer msg; |
745 | char *handle; | |
746 | int local_fd, status, num_req, max_req, write_error; | |
747 | int read_error, write_errno; | |
748 | u_int64_t offset, size; | |
22e6c827 | 749 | u_int handle_len, mode, type, id, buflen; |
b65c3807 | 750 | off_t progress_counter; |
c25d3df7 | 751 | struct request { |
752 | u_int id; | |
753 | u_int len; | |
754 | u_int64_t offset; | |
762715ce | 755 | TAILQ_ENTRY(request) tq; |
c25d3df7 | 756 | }; |
757 | TAILQ_HEAD(reqhead, request) requests; | |
758 | struct request *req; | |
759 | ||
760 | TAILQ_INIT(&requests); | |
61e96248 | 761 | |
22e6c827 | 762 | a = do_stat(conn, remote_path, 0); |
61e96248 | 763 | if (a == NULL) |
764 | return(-1); | |
765 | ||
766 | /* XXX: should we preserve set[ug]id? */ | |
767 | if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) | |
bfd934b9 | 768 | mode = a->perm & 0777; |
61e96248 | 769 | else |
770 | mode = 0666; | |
771 | ||
d50d9b63 | 772 | if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) && |
538840a2 | 773 | (!S_ISREG(a->perm))) { |
774 | error("Cannot download non-regular file: %s", remote_path); | |
d50d9b63 | 775 | return(-1); |
776 | } | |
777 | ||
c25d3df7 | 778 | if (a->flags & SSH2_FILEXFER_ATTR_SIZE) |
779 | size = a->size; | |
780 | else | |
781 | size = 0; | |
782 | ||
22e6c827 | 783 | buflen = conn->transfer_buflen; |
61e96248 | 784 | buffer_init(&msg); |
785 | ||
786 | /* Send open request */ | |
22e6c827 | 787 | id = conn->msg_id++; |
61e96248 | 788 | buffer_put_char(&msg, SSH2_FXP_OPEN); |
789 | buffer_put_int(&msg, id); | |
790 | buffer_put_cstring(&msg, remote_path); | |
791 | buffer_put_int(&msg, SSH2_FXF_READ); | |
792 | attrib_clear(&junk); /* Send empty attributes */ | |
793 | encode_attrib(&msg, &junk); | |
22e6c827 | 794 | send_msg(conn->fd_out, &msg); |
9906a836 | 795 | debug3("Sent message SSH2_FXP_OPEN I:%u P:%s", id, remote_path); |
61e96248 | 796 | |
22e6c827 | 797 | handle = get_handle(conn->fd_in, id, &handle_len); |
61e96248 | 798 | if (handle == NULL) { |
799 | buffer_free(&msg); | |
61e96248 | 800 | return(-1); |
801 | } | |
802 | ||
aff51935 | 803 | local_fd = open(local_path, O_WRONLY | O_CREAT | O_TRUNC, |
bfd934b9 | 804 | mode | S_IWRITE); |
22e6c827 | 805 | if (local_fd == -1) { |
806 | error("Couldn't open local file \"%s\" for writing: %s", | |
807 | local_path, strerror(errno)); | |
f60ace9f | 808 | buffer_free(&msg); |
809 | xfree(handle); | |
22e6c827 | 810 | return(-1); |
811 | } | |
812 | ||
61e96248 | 813 | /* Read from remote and write to local */ |
c25d3df7 | 814 | write_error = read_error = write_errno = num_req = offset = 0; |
815 | max_req = 1; | |
b65c3807 | 816 | progress_counter = 0; |
817 | ||
213bab61 | 818 | if (showprogress && size != 0) |
819 | start_progress_meter(remote_path, size, &progress_counter); | |
b65c3807 | 820 | |
c25d3df7 | 821 | while (num_req > 0 || max_req > 0) { |
61e96248 | 822 | char *data; |
c25d3df7 | 823 | u_int len; |
61e96248 | 824 | |
0e5de6f8 | 825 | /* |
f2107e97 | 826 | * Simulate EOF on interrupt: stop sending new requests and |
0e5de6f8 | 827 | * allow outstanding requests to drain gracefully |
828 | */ | |
829 | if (interrupted) { | |
830 | if (num_req == 0) /* If we haven't started yet... */ | |
831 | break; | |
832 | max_req = 0; | |
833 | } | |
834 | ||
c25d3df7 | 835 | /* Send some more requests */ |
836 | while (num_req < max_req) { | |
762715ce | 837 | debug3("Request range %llu -> %llu (%d/%d)", |
8627f3e0 | 838 | (unsigned long long)offset, |
839 | (unsigned long long)offset + buflen - 1, | |
840 | num_req, max_req); | |
c25d3df7 | 841 | req = xmalloc(sizeof(*req)); |
22e6c827 | 842 | req->id = conn->msg_id++; |
c25d3df7 | 843 | req->len = buflen; |
844 | req->offset = offset; | |
845 | offset += buflen; | |
846 | num_req++; | |
847 | TAILQ_INSERT_TAIL(&requests, req, tq); | |
762715ce | 848 | send_read_request(conn->fd_out, req->id, req->offset, |
c25d3df7 | 849 | req->len, handle, handle_len); |
850 | } | |
61e96248 | 851 | |
852 | buffer_clear(&msg); | |
22e6c827 | 853 | get_msg(conn->fd_in, &msg); |
61e96248 | 854 | type = buffer_get_char(&msg); |
855 | id = buffer_get_int(&msg); | |
9906a836 | 856 | debug3("Received reply T:%u I:%u R:%d", type, id, max_req); |
c25d3df7 | 857 | |
858 | /* Find the request in our queue */ | |
f8cc7664 | 859 | for (req = TAILQ_FIRST(&requests); |
c25d3df7 | 860 | req != NULL && req->id != id; |
861 | req = TAILQ_NEXT(req, tq)) | |
862 | ; | |
863 | if (req == NULL) | |
864 | fatal("Unexpected reply %u", id); | |
865 | ||
866 | switch (type) { | |
867 | case SSH2_FXP_STATUS: | |
0426a3b4 | 868 | status = buffer_get_int(&msg); |
c25d3df7 | 869 | if (status != SSH2_FX_EOF) |
870 | read_error = 1; | |
871 | max_req = 0; | |
872 | TAILQ_REMOVE(&requests, req, tq); | |
873 | xfree(req); | |
874 | num_req--; | |
875 | break; | |
876 | case SSH2_FXP_DATA: | |
877 | data = buffer_get_string(&msg, &len); | |
bfa7f960 | 878 | debug3("Received data %llu -> %llu", |
762715ce | 879 | (unsigned long long)req->offset, |
bfa7f960 | 880 | (unsigned long long)req->offset + len - 1); |
c25d3df7 | 881 | if (len > req->len) |
882 | fatal("Received more data than asked for " | |
b77a87e5 | 883 | "%u > %u", len, req->len); |
c25d3df7 | 884 | if ((lseek(local_fd, req->offset, SEEK_SET) == -1 || |
dc54438a | 885 | atomicio(vwrite, local_fd, data, len) != len) && |
c25d3df7 | 886 | !write_error) { |
887 | write_errno = errno; | |
888 | write_error = 1; | |
889 | max_req = 0; | |
890 | } | |
b65c3807 | 891 | progress_counter += len; |
c25d3df7 | 892 | xfree(data); |
61e96248 | 893 | |
c25d3df7 | 894 | if (len == req->len) { |
895 | TAILQ_REMOVE(&requests, req, tq); | |
896 | xfree(req); | |
897 | num_req--; | |
898 | } else { | |
899 | /* Resend the request for the missing data */ | |
900 | debug3("Short data block, re-requesting " | |
bfa7f960 | 901 | "%llu -> %llu (%2d)", |
762715ce | 902 | (unsigned long long)req->offset + len, |
5fc7dbc9 | 903 | (unsigned long long)req->offset + |
904 | req->len - 1, num_req); | |
22e6c827 | 905 | req->id = conn->msg_id++; |
c25d3df7 | 906 | req->len -= len; |
907 | req->offset += len; | |
762715ce | 908 | send_read_request(conn->fd_out, req->id, |
22e6c827 | 909 | req->offset, req->len, handle, handle_len); |
c25d3df7 | 910 | /* Reduce the request size */ |
911 | if (len < buflen) | |
912 | buflen = MAX(MIN_READ_SIZE, len); | |
913 | } | |
914 | if (max_req > 0) { /* max_req = 0 iff EOF received */ | |
915 | if (size > 0 && offset > size) { | |
916 | /* Only one request at a time | |
917 | * after the expected EOF */ | |
918 | debug3("Finish at %llu (%2d)", | |
bfa7f960 | 919 | (unsigned long long)offset, |
920 | num_req); | |
c25d3df7 | 921 | max_req = 1; |
0e5de6f8 | 922 | } else if (max_req <= conn->num_requests) { |
c25d3df7 | 923 | ++max_req; |
924 | } | |
61e96248 | 925 | } |
c25d3df7 | 926 | break; |
927 | default: | |
9906a836 | 928 | fatal("Expected SSH2_FXP_DATA(%u) packet, got %u", |
61e96248 | 929 | SSH2_FXP_DATA, type); |
930 | } | |
61e96248 | 931 | } |
61e96248 | 932 | |
b65c3807 | 933 | if (showprogress && size) |
934 | stop_progress_meter(); | |
935 | ||
c25d3df7 | 936 | /* Sanity check */ |
937 | if (TAILQ_FIRST(&requests) != NULL) | |
938 | fatal("Transfer complete, but requests still in queue"); | |
939 | ||
940 | if (read_error) { | |
762715ce | 941 | error("Couldn't read from remote file \"%s\" : %s", |
22e6c827 | 942 | remote_path, fx2txt(status)); |
943 | do_close(conn, handle, handle_len); | |
c25d3df7 | 944 | } else if (write_error) { |
22e6c827 | 945 | error("Couldn't write to \"%s\": %s", local_path, |
946 | strerror(write_errno)); | |
947 | status = -1; | |
948 | do_close(conn, handle, handle_len); | |
c25d3df7 | 949 | } else { |
22e6c827 | 950 | status = do_close(conn, handle, handle_len); |
c25d3df7 | 951 | |
952 | /* Override umask and utimes if asked */ | |
663fd560 | 953 | #ifdef HAVE_FCHMOD |
c25d3df7 | 954 | if (pflag && fchmod(local_fd, mode) == -1) |
aff51935 | 955 | #else |
c25d3df7 | 956 | if (pflag && chmod(local_path, mode) == -1) |
663fd560 | 957 | #endif /* HAVE_FCHMOD */ |
c25d3df7 | 958 | error("Couldn't set mode on \"%s\": %s", local_path, |
b77a87e5 | 959 | strerror(errno)); |
c25d3df7 | 960 | if (pflag && (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME)) { |
961 | struct timeval tv[2]; | |
962 | tv[0].tv_sec = a->atime; | |
963 | tv[1].tv_sec = a->mtime; | |
964 | tv[0].tv_usec = tv[1].tv_usec = 0; | |
965 | if (utimes(local_path, tv) == -1) | |
966 | error("Can't set times on \"%s\": %s", | |
b77a87e5 | 967 | local_path, strerror(errno)); |
c25d3df7 | 968 | } |
58c54a79 | 969 | } |
0426a3b4 | 970 | close(local_fd); |
971 | buffer_free(&msg); | |
972 | xfree(handle); | |
22e6c827 | 973 | |
974 | return(status); | |
61e96248 | 975 | } |
976 | ||
977 | int | |
22e6c827 | 978 | do_upload(struct sftp_conn *conn, char *local_path, char *remote_path, |
979 | int pflag) | |
61e96248 | 980 | { |
375f867e | 981 | int local_fd, status; |
b2bab059 | 982 | u_int handle_len, id, type; |
61e96248 | 983 | u_int64_t offset; |
375f867e | 984 | char *handle, *data; |
61e96248 | 985 | Buffer msg; |
986 | struct stat sb; | |
987 | Attrib a; | |
c25d3df7 | 988 | u_int32_t startid; |
989 | u_int32_t ackid; | |
b2bab059 | 990 | struct outstanding_ack { |
991 | u_int id; | |
992 | u_int len; | |
993 | u_int64_t offset; | |
762715ce | 994 | TAILQ_ENTRY(outstanding_ack) tq; |
b2bab059 | 995 | }; |
996 | TAILQ_HEAD(ackhead, outstanding_ack) acks; | |
6e007f08 | 997 | struct outstanding_ack *ack = NULL; |
b2bab059 | 998 | |
999 | TAILQ_INIT(&acks); | |
61e96248 | 1000 | |
1001 | if ((local_fd = open(local_path, O_RDONLY, 0)) == -1) { | |
1002 | error("Couldn't open local file \"%s\" for reading: %s", | |
1003 | local_path, strerror(errno)); | |
1004 | return(-1); | |
1005 | } | |
1006 | if (fstat(local_fd, &sb) == -1) { | |
1007 | error("Couldn't fstat local file \"%s\": %s", | |
1008 | local_path, strerror(errno)); | |
1009 | close(local_fd); | |
1010 | return(-1); | |
1011 | } | |
538840a2 | 1012 | if (!S_ISREG(sb.st_mode)) { |
1013 | error("%s is not a regular file", local_path); | |
1014 | close(local_fd); | |
1015 | return(-1); | |
1016 | } | |
61e96248 | 1017 | stat_to_attrib(&sb, &a); |
1018 | ||
1019 | a.flags &= ~SSH2_FILEXFER_ATTR_SIZE; | |
1020 | a.flags &= ~SSH2_FILEXFER_ATTR_UIDGID; | |
1021 | a.perm &= 0777; | |
1022 | if (!pflag) | |
1023 | a.flags &= ~SSH2_FILEXFER_ATTR_ACMODTIME; | |
1024 | ||
1025 | buffer_init(&msg); | |
1026 | ||
1027 | /* Send open request */ | |
22e6c827 | 1028 | id = conn->msg_id++; |
61e96248 | 1029 | buffer_put_char(&msg, SSH2_FXP_OPEN); |
1030 | buffer_put_int(&msg, id); | |
1031 | buffer_put_cstring(&msg, remote_path); | |
1032 | buffer_put_int(&msg, SSH2_FXF_WRITE|SSH2_FXF_CREAT|SSH2_FXF_TRUNC); | |
1033 | encode_attrib(&msg, &a); | |
22e6c827 | 1034 | send_msg(conn->fd_out, &msg); |
9906a836 | 1035 | debug3("Sent message SSH2_FXP_OPEN I:%u P:%s", id, remote_path); |
61e96248 | 1036 | |
1037 | buffer_clear(&msg); | |
1038 | ||
22e6c827 | 1039 | handle = get_handle(conn->fd_in, id, &handle_len); |
61e96248 | 1040 | if (handle == NULL) { |
1041 | close(local_fd); | |
1042 | buffer_free(&msg); | |
1043 | return(-1); | |
1044 | } | |
1045 | ||
c25d3df7 | 1046 | startid = ackid = id + 1; |
22e6c827 | 1047 | data = xmalloc(conn->transfer_buflen); |
375f867e | 1048 | |
61e96248 | 1049 | /* Read from local and write to remote */ |
1050 | offset = 0; | |
b65c3807 | 1051 | if (showprogress) |
1052 | start_progress_meter(local_path, sb.st_size, &offset); | |
b65c3807 | 1053 | |
184eed6a | 1054 | for (;;) { |
61e96248 | 1055 | int len; |
61e96248 | 1056 | |
1057 | /* | |
f2107e97 | 1058 | * Can't use atomicio here because it returns 0 on EOF, |
0e5de6f8 | 1059 | * thus losing the last block of the file. |
f2107e97 | 1060 | * Simulate an EOF on interrupt, allowing ACKs from the |
0e5de6f8 | 1061 | * server to drain. |
61e96248 | 1062 | */ |
0e5de6f8 | 1063 | if (interrupted) |
1064 | len = 0; | |
1065 | else do | |
22e6c827 | 1066 | len = read(local_fd, data, conn->transfer_buflen); |
61e96248 | 1067 | while ((len == -1) && (errno == EINTR || errno == EAGAIN)); |
1068 | ||
1069 | if (len == -1) | |
1070 | fatal("Couldn't read from \"%s\": %s", local_path, | |
1071 | strerror(errno)); | |
c25d3df7 | 1072 | |
1073 | if (len != 0) { | |
b2bab059 | 1074 | ack = xmalloc(sizeof(*ack)); |
1075 | ack->id = ++id; | |
1076 | ack->offset = offset; | |
1077 | ack->len = len; | |
1078 | TAILQ_INSERT_TAIL(&acks, ack, tq); | |
1079 | ||
c25d3df7 | 1080 | buffer_clear(&msg); |
1081 | buffer_put_char(&msg, SSH2_FXP_WRITE); | |
b2bab059 | 1082 | buffer_put_int(&msg, ack->id); |
c25d3df7 | 1083 | buffer_put_string(&msg, handle, handle_len); |
1084 | buffer_put_int64(&msg, offset); | |
1085 | buffer_put_string(&msg, data, len); | |
22e6c827 | 1086 | send_msg(conn->fd_out, &msg); |
9906a836 | 1087 | debug3("Sent message SSH2_FXP_WRITE I:%u O:%llu S:%u", |
b77a87e5 | 1088 | id, (unsigned long long)offset, len); |
b2bab059 | 1089 | } else if (TAILQ_FIRST(&acks) == NULL) |
61e96248 | 1090 | break; |
1091 | ||
b2bab059 | 1092 | if (ack == NULL) |
1093 | fatal("Unexpected ACK %u", id); | |
1094 | ||
762715ce | 1095 | if (id == startid || len == 0 || |
22e6c827 | 1096 | id - ackid >= conn->num_requests) { |
875ec275 | 1097 | u_int r_id; |
af2b3cd9 | 1098 | |
b2bab059 | 1099 | buffer_clear(&msg); |
22e6c827 | 1100 | get_msg(conn->fd_in, &msg); |
b2bab059 | 1101 | type = buffer_get_char(&msg); |
af2b3cd9 | 1102 | r_id = buffer_get_int(&msg); |
b2bab059 | 1103 | |
1104 | if (type != SSH2_FXP_STATUS) | |
1105 | fatal("Expected SSH2_FXP_STATUS(%d) packet, " | |
1106 | "got %d", SSH2_FXP_STATUS, type); | |
1107 | ||
1108 | status = buffer_get_int(&msg); | |
1109 | debug3("SSH2_FXP_STATUS %d", status); | |
1110 | ||
1111 | /* Find the request in our queue */ | |
f8cc7664 | 1112 | for (ack = TAILQ_FIRST(&acks); |
af2b3cd9 | 1113 | ack != NULL && ack->id != r_id; |
b2bab059 | 1114 | ack = TAILQ_NEXT(ack, tq)) |
1115 | ; | |
1116 | if (ack == NULL) | |
9906a836 | 1117 | fatal("Can't find request for ID %u", r_id); |
b2bab059 | 1118 | TAILQ_REMOVE(&acks, ack, tq); |
1119 | ||
c25d3df7 | 1120 | if (status != SSH2_FX_OK) { |
1121 | error("Couldn't write to remote file \"%s\": %s", | |
b77a87e5 | 1122 | remote_path, fx2txt(status)); |
22e6c827 | 1123 | do_close(conn, handle, handle_len); |
c25d3df7 | 1124 | close(local_fd); |
3e2f2431 | 1125 | xfree(data); |
1126 | xfree(ack); | |
c25d3df7 | 1127 | goto done; |
1128 | } | |
9906a836 | 1129 | debug3("In write loop, ack for %u %u bytes at %llu", |
bfa7f960 | 1130 | ack->id, ack->len, (unsigned long long)ack->offset); |
c25d3df7 | 1131 | ++ackid; |
30e37ee6 | 1132 | xfree(ack); |
61e96248 | 1133 | } |
61e96248 | 1134 | offset += len; |
1135 | } | |
b65c3807 | 1136 | if (showprogress) |
1137 | stop_progress_meter(); | |
375f867e | 1138 | xfree(data); |
61e96248 | 1139 | |
1140 | if (close(local_fd) == -1) { | |
1141 | error("Couldn't close local file \"%s\": %s", local_path, | |
1142 | strerror(errno)); | |
22e6c827 | 1143 | do_close(conn, handle, handle_len); |
0426a3b4 | 1144 | status = -1; |
1145 | goto done; | |
61e96248 | 1146 | } |
1147 | ||
58c54a79 | 1148 | /* Override umask and utimes if asked */ |
1149 | if (pflag) | |
22e6c827 | 1150 | do_fsetstat(conn, handle, handle_len, &a); |
58c54a79 | 1151 | |
22e6c827 | 1152 | status = do_close(conn, handle, handle_len); |
0426a3b4 | 1153 | |
1154 | done: | |
1155 | xfree(handle); | |
1156 | buffer_free(&msg); | |
22e6c827 | 1157 | return(status); |
61e96248 | 1158 | } |