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3c0ef626 | 1 | /* |
cdd66111 | 2 | * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org> |
3c0ef626 | 3 | * |
cdd66111 | 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. | |
3c0ef626 | 7 | * |
cdd66111 | 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. | |
3c0ef626 | 15 | */ |
16 | ||
17 | /* XXX: memleaks */ | |
18 | /* XXX: signed vs unsigned */ | |
e9a17296 | 19 | /* XXX: remove all logging, only return status codes */ |
3c0ef626 | 20 | /* XXX: copy between two remote sites */ |
21 | ||
22 | #include "includes.h" | |
665a873d | 23 | RCSID("$OpenBSD: sftp-client.c,v 1.57 2005/07/27 10:39:03 dtucker Exp $"); |
e9a17296 | 24 | |
41b2f314 | 25 | #include "openbsd-compat/sys-queue.h" |
3c0ef626 | 26 | |
27 | #include "buffer.h" | |
28 | #include "bufaux.h" | |
29 | #include "getput.h" | |
30 | #include "xmalloc.h" | |
31 | #include "log.h" | |
32 | #include "atomicio.h" | |
6a9b3198 | 33 | #include "progressmeter.h" |
3c0ef626 | 34 | |
35 | #include "sftp.h" | |
36 | #include "sftp-common.h" | |
37 | #include "sftp-client.h" | |
38 | ||
c9f39d2c | 39 | extern volatile sig_atomic_t interrupted; |
6a9b3198 | 40 | extern int showprogress; |
41 | ||
e9a17296 | 42 | /* Minimum amount of data to read at at time */ |
43 | #define MIN_READ_SIZE 512 | |
3c0ef626 | 44 | |
6a9b3198 | 45 | /* Maximum packet size */ |
46 | #define MAX_MSG_LENGTH (256 * 1024) | |
47 | ||
e9a17296 | 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 | }; | |
3c0ef626 | 56 | |
57 | static void | |
58 | send_msg(int fd, Buffer *m) | |
59 | { | |
6a9b3198 | 60 | u_char mlen[4]; |
61 | ||
62 | if (buffer_len(m) > MAX_MSG_LENGTH) | |
63 | fatal("Outbound message too long %u", buffer_len(m)); | |
3c0ef626 | 64 | |
6a9b3198 | 65 | /* Send length first */ |
66 | PUT_32BIT(mlen, buffer_len(m)); | |
665a873d | 67 | if (atomicio(vwrite, fd, mlen, sizeof(mlen)) != sizeof(mlen)) |
6a9b3198 | 68 | fatal("Couldn't send packet: %s", strerror(errno)); |
3c0ef626 | 69 | |
665a873d | 70 | if (atomicio(vwrite, fd, buffer_ptr(m), buffer_len(m)) != buffer_len(m)) |
3c0ef626 | 71 | fatal("Couldn't send packet: %s", strerror(errno)); |
72 | ||
6a9b3198 | 73 | buffer_clear(m); |
3c0ef626 | 74 | } |
75 | ||
76 | static void | |
77 | get_msg(int fd, Buffer *m) | |
78 | { | |
6a9b3198 | 79 | u_int msg_len; |
3c0ef626 | 80 | |
6a9b3198 | 81 | buffer_append_space(m, 4); |
665a873d | 82 | if (atomicio(read, fd, buffer_ptr(m), 4) != 4) { |
83 | if (errno == EPIPE) | |
84 | fatal("Connection closed"); | |
85 | else | |
86 | fatal("Couldn't read packet: %s", strerror(errno)); | |
87 | } | |
3c0ef626 | 88 | |
6a9b3198 | 89 | msg_len = buffer_get_int(m); |
90 | if (msg_len > MAX_MSG_LENGTH) | |
680cee3b | 91 | fatal("Received message too long %u", msg_len); |
3c0ef626 | 92 | |
6a9b3198 | 93 | buffer_append_space(m, msg_len); |
665a873d | 94 | if (atomicio(read, fd, buffer_ptr(m), msg_len) != msg_len) { |
95 | if (errno == EPIPE) | |
96 | fatal("Connection closed"); | |
97 | else | |
98 | fatal("Read packet: %s", strerror(errno)); | |
99 | } | |
3c0ef626 | 100 | } |
101 | ||
102 | static void | |
103 | send_string_request(int fd, u_int id, u_int code, char *s, | |
104 | u_int len) | |
105 | { | |
106 | Buffer msg; | |
107 | ||
108 | buffer_init(&msg); | |
109 | buffer_put_char(&msg, code); | |
110 | buffer_put_int(&msg, id); | |
111 | buffer_put_string(&msg, s, len); | |
112 | send_msg(fd, &msg); | |
680cee3b | 113 | debug3("Sent message fd %d T:%u I:%u", fd, code, id); |
3c0ef626 | 114 | buffer_free(&msg); |
115 | } | |
116 | ||
117 | static void | |
118 | send_string_attrs_request(int fd, u_int id, u_int code, char *s, | |
119 | u_int len, Attrib *a) | |
120 | { | |
121 | Buffer msg; | |
122 | ||
123 | buffer_init(&msg); | |
124 | buffer_put_char(&msg, code); | |
125 | buffer_put_int(&msg, id); | |
126 | buffer_put_string(&msg, s, len); | |
127 | encode_attrib(&msg, a); | |
128 | send_msg(fd, &msg); | |
680cee3b | 129 | debug3("Sent message fd %d T:%u I:%u", fd, code, id); |
3c0ef626 | 130 | buffer_free(&msg); |
131 | } | |
132 | ||
133 | static u_int | |
680cee3b | 134 | get_status(int fd, u_int expected_id) |
3c0ef626 | 135 | { |
136 | Buffer msg; | |
137 | u_int type, id, status; | |
138 | ||
139 | buffer_init(&msg); | |
140 | get_msg(fd, &msg); | |
141 | type = buffer_get_char(&msg); | |
142 | id = buffer_get_int(&msg); | |
143 | ||
144 | if (id != expected_id) | |
680cee3b | 145 | fatal("ID mismatch (%u != %u)", id, expected_id); |
3c0ef626 | 146 | if (type != SSH2_FXP_STATUS) |
680cee3b | 147 | fatal("Expected SSH2_FXP_STATUS(%u) packet, got %u", |
3c0ef626 | 148 | SSH2_FXP_STATUS, type); |
149 | ||
150 | status = buffer_get_int(&msg); | |
151 | buffer_free(&msg); | |
152 | ||
680cee3b | 153 | debug3("SSH2_FXP_STATUS %u", status); |
3c0ef626 | 154 | |
155 | return(status); | |
156 | } | |
157 | ||
158 | static char * | |
159 | get_handle(int fd, u_int expected_id, u_int *len) | |
160 | { | |
161 | Buffer msg; | |
162 | u_int type, id; | |
163 | char *handle; | |
164 | ||
165 | buffer_init(&msg); | |
166 | get_msg(fd, &msg); | |
167 | type = buffer_get_char(&msg); | |
168 | id = buffer_get_int(&msg); | |
169 | ||
170 | if (id != expected_id) | |
680cee3b | 171 | fatal("ID mismatch (%u != %u)", id, expected_id); |
3c0ef626 | 172 | if (type == SSH2_FXP_STATUS) { |
173 | int status = buffer_get_int(&msg); | |
174 | ||
175 | error("Couldn't get handle: %s", fx2txt(status)); | |
996d5e62 | 176 | buffer_free(&msg); |
3c0ef626 | 177 | return(NULL); |
178 | } else if (type != SSH2_FXP_HANDLE) | |
680cee3b | 179 | fatal("Expected SSH2_FXP_HANDLE(%u) packet, got %u", |
3c0ef626 | 180 | SSH2_FXP_HANDLE, type); |
181 | ||
182 | handle = buffer_get_string(&msg, len); | |
183 | buffer_free(&msg); | |
184 | ||
185 | return(handle); | |
186 | } | |
187 | ||
188 | static Attrib * | |
189 | get_decode_stat(int fd, u_int expected_id, int quiet) | |
190 | { | |
191 | Buffer msg; | |
192 | u_int type, id; | |
193 | Attrib *a; | |
194 | ||
195 | buffer_init(&msg); | |
196 | get_msg(fd, &msg); | |
197 | ||
198 | type = buffer_get_char(&msg); | |
199 | id = buffer_get_int(&msg); | |
200 | ||
680cee3b | 201 | debug3("Received stat reply T:%u I:%u", type, id); |
3c0ef626 | 202 | if (id != expected_id) |
680cee3b | 203 | fatal("ID mismatch (%u != %u)", id, expected_id); |
3c0ef626 | 204 | if (type == SSH2_FXP_STATUS) { |
205 | int status = buffer_get_int(&msg); | |
206 | ||
207 | if (quiet) | |
208 | debug("Couldn't stat remote file: %s", fx2txt(status)); | |
209 | else | |
210 | error("Couldn't stat remote file: %s", fx2txt(status)); | |
996d5e62 | 211 | buffer_free(&msg); |
3c0ef626 | 212 | return(NULL); |
213 | } else if (type != SSH2_FXP_ATTRS) { | |
680cee3b | 214 | fatal("Expected SSH2_FXP_ATTRS(%u) packet, got %u", |
3c0ef626 | 215 | SSH2_FXP_ATTRS, type); |
216 | } | |
217 | a = decode_attrib(&msg); | |
218 | buffer_free(&msg); | |
219 | ||
220 | return(a); | |
221 | } | |
222 | ||
e9a17296 | 223 | struct sftp_conn * |
224 | do_init(int fd_in, int fd_out, u_int transfer_buflen, u_int num_requests) | |
3c0ef626 | 225 | { |
680cee3b | 226 | u_int type; |
227 | int version; | |
3c0ef626 | 228 | Buffer msg; |
e9a17296 | 229 | struct sftp_conn *ret; |
3c0ef626 | 230 | |
231 | buffer_init(&msg); | |
232 | buffer_put_char(&msg, SSH2_FXP_INIT); | |
233 | buffer_put_int(&msg, SSH2_FILEXFER_VERSION); | |
234 | send_msg(fd_out, &msg); | |
235 | ||
236 | buffer_clear(&msg); | |
237 | ||
238 | get_msg(fd_in, &msg); | |
239 | ||
240 | /* Expecting a VERSION reply */ | |
241 | if ((type = buffer_get_char(&msg)) != SSH2_FXP_VERSION) { | |
680cee3b | 242 | error("Invalid packet back from SSH2_FXP_INIT (type %u)", |
3c0ef626 | 243 | type); |
244 | buffer_free(&msg); | |
e9a17296 | 245 | return(NULL); |
3c0ef626 | 246 | } |
247 | version = buffer_get_int(&msg); | |
248 | ||
249 | debug2("Remote version: %d", version); | |
250 | ||
251 | /* Check for extensions */ | |
252 | while (buffer_len(&msg) > 0) { | |
253 | char *name = buffer_get_string(&msg, NULL); | |
254 | char *value = buffer_get_string(&msg, NULL); | |
255 | ||
256 | debug2("Init extension: \"%s\"", name); | |
257 | xfree(name); | |
258 | xfree(value); | |
259 | } | |
260 | ||
261 | buffer_free(&msg); | |
262 | ||
e9a17296 | 263 | ret = xmalloc(sizeof(*ret)); |
264 | ret->fd_in = fd_in; | |
265 | ret->fd_out = fd_out; | |
266 | ret->transfer_buflen = transfer_buflen; | |
267 | ret->num_requests = num_requests; | |
268 | ret->version = version; | |
269 | ret->msg_id = 1; | |
270 | ||
271 | /* Some filexfer v.0 servers don't support large packets */ | |
272 | if (version == 0) | |
700318f3 | 273 | ret->transfer_buflen = MIN(ret->transfer_buflen, 20480); |
e9a17296 | 274 | |
275 | return(ret); | |
276 | } | |
277 | ||
278 | u_int | |
279 | sftp_proto_version(struct sftp_conn *conn) | |
280 | { | |
281 | return(conn->version); | |
3c0ef626 | 282 | } |
283 | ||
284 | int | |
e9a17296 | 285 | do_close(struct sftp_conn *conn, char *handle, u_int handle_len) |
3c0ef626 | 286 | { |
287 | u_int id, status; | |
288 | Buffer msg; | |
289 | ||
290 | buffer_init(&msg); | |
291 | ||
e9a17296 | 292 | id = conn->msg_id++; |
3c0ef626 | 293 | buffer_put_char(&msg, SSH2_FXP_CLOSE); |
294 | buffer_put_int(&msg, id); | |
295 | buffer_put_string(&msg, handle, handle_len); | |
e9a17296 | 296 | send_msg(conn->fd_out, &msg); |
680cee3b | 297 | debug3("Sent message SSH2_FXP_CLOSE I:%u", id); |
3c0ef626 | 298 | |
e9a17296 | 299 | status = get_status(conn->fd_in, id); |
3c0ef626 | 300 | if (status != SSH2_FX_OK) |
301 | error("Couldn't close file: %s", fx2txt(status)); | |
302 | ||
303 | buffer_free(&msg); | |
304 | ||
305 | return(status); | |
306 | } | |
307 | ||
308 | ||
309 | static int | |
e9a17296 | 310 | do_lsreaddir(struct sftp_conn *conn, char *path, int printflag, |
3c0ef626 | 311 | SFTP_DIRENT ***dir) |
312 | { | |
313 | Buffer msg; | |
665a873d | 314 | u_int count, type, id, handle_len, i, expected_id, ents = 0; |
3c0ef626 | 315 | char *handle; |
316 | ||
e9a17296 | 317 | id = conn->msg_id++; |
3c0ef626 | 318 | |
319 | buffer_init(&msg); | |
320 | buffer_put_char(&msg, SSH2_FXP_OPENDIR); | |
321 | buffer_put_int(&msg, id); | |
322 | buffer_put_cstring(&msg, path); | |
e9a17296 | 323 | send_msg(conn->fd_out, &msg); |
3c0ef626 | 324 | |
325 | buffer_clear(&msg); | |
326 | ||
e9a17296 | 327 | handle = get_handle(conn->fd_in, id, &handle_len); |
3c0ef626 | 328 | if (handle == NULL) |
329 | return(-1); | |
330 | ||
331 | if (dir) { | |
332 | ents = 0; | |
333 | *dir = xmalloc(sizeof(**dir)); | |
334 | (*dir)[0] = NULL; | |
335 | } | |
3c0ef626 | 336 | |
c9f39d2c | 337 | for (; !interrupted;) { |
e9a17296 | 338 | id = expected_id = conn->msg_id++; |
3c0ef626 | 339 | |
680cee3b | 340 | debug3("Sending SSH2_FXP_READDIR I:%u", id); |
3c0ef626 | 341 | |
342 | buffer_clear(&msg); | |
343 | buffer_put_char(&msg, SSH2_FXP_READDIR); | |
344 | buffer_put_int(&msg, id); | |
345 | buffer_put_string(&msg, handle, handle_len); | |
e9a17296 | 346 | send_msg(conn->fd_out, &msg); |
3c0ef626 | 347 | |
348 | buffer_clear(&msg); | |
349 | ||
e9a17296 | 350 | get_msg(conn->fd_in, &msg); |
3c0ef626 | 351 | |
352 | type = buffer_get_char(&msg); | |
353 | id = buffer_get_int(&msg); | |
354 | ||
680cee3b | 355 | debug3("Received reply T:%u I:%u", type, id); |
3c0ef626 | 356 | |
357 | if (id != expected_id) | |
680cee3b | 358 | fatal("ID mismatch (%u != %u)", id, expected_id); |
3c0ef626 | 359 | |
360 | if (type == SSH2_FXP_STATUS) { | |
361 | int status = buffer_get_int(&msg); | |
362 | ||
363 | debug3("Received SSH2_FXP_STATUS %d", status); | |
364 | ||
365 | if (status == SSH2_FX_EOF) { | |
366 | break; | |
367 | } else { | |
368 | error("Couldn't read directory: %s", | |
369 | fx2txt(status)); | |
e9a17296 | 370 | do_close(conn, handle, handle_len); |
6a9b3198 | 371 | xfree(handle); |
3c0ef626 | 372 | return(status); |
373 | } | |
374 | } else if (type != SSH2_FXP_NAME) | |
680cee3b | 375 | fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", |
3c0ef626 | 376 | SSH2_FXP_NAME, type); |
377 | ||
378 | count = buffer_get_int(&msg); | |
379 | if (count == 0) | |
380 | break; | |
381 | debug3("Received %d SSH2_FXP_NAME responses", count); | |
e9a17296 | 382 | for (i = 0; i < count; i++) { |
3c0ef626 | 383 | char *filename, *longname; |
384 | Attrib *a; | |
385 | ||
386 | filename = buffer_get_string(&msg, NULL); | |
387 | longname = buffer_get_string(&msg, NULL); | |
388 | a = decode_attrib(&msg); | |
389 | ||
390 | if (printflag) | |
391 | printf("%s\n", longname); | |
392 | ||
393 | if (dir) { | |
394 | *dir = xrealloc(*dir, sizeof(**dir) * | |
395 | (ents + 2)); | |
396 | (*dir)[ents] = xmalloc(sizeof(***dir)); | |
397 | (*dir)[ents]->filename = xstrdup(filename); | |
398 | (*dir)[ents]->longname = xstrdup(longname); | |
399 | memcpy(&(*dir)[ents]->a, a, sizeof(*a)); | |
400 | (*dir)[++ents] = NULL; | |
401 | } | |
402 | ||
403 | xfree(filename); | |
404 | xfree(longname); | |
405 | } | |
406 | } | |
407 | ||
408 | buffer_free(&msg); | |
e9a17296 | 409 | do_close(conn, handle, handle_len); |
3c0ef626 | 410 | xfree(handle); |
411 | ||
c9f39d2c | 412 | /* Don't return partial matches on interrupt */ |
413 | if (interrupted && dir != NULL && *dir != NULL) { | |
414 | free_sftp_dirents(*dir); | |
415 | *dir = xmalloc(sizeof(**dir)); | |
416 | **dir = NULL; | |
417 | } | |
418 | ||
3c0ef626 | 419 | return(0); |
420 | } | |
421 | ||
3c0ef626 | 422 | int |
e9a17296 | 423 | do_readdir(struct sftp_conn *conn, char *path, SFTP_DIRENT ***dir) |
3c0ef626 | 424 | { |
e9a17296 | 425 | return(do_lsreaddir(conn, path, 0, dir)); |
3c0ef626 | 426 | } |
427 | ||
428 | void free_sftp_dirents(SFTP_DIRENT **s) | |
429 | { | |
430 | int i; | |
e9a17296 | 431 | |
432 | for (i = 0; s[i]; i++) { | |
3c0ef626 | 433 | xfree(s[i]->filename); |
434 | xfree(s[i]->longname); | |
435 | xfree(s[i]); | |
436 | } | |
437 | xfree(s); | |
438 | } | |
439 | ||
440 | int | |
e9a17296 | 441 | do_rm(struct sftp_conn *conn, char *path) |
3c0ef626 | 442 | { |
443 | u_int status, id; | |
444 | ||
445 | debug2("Sending SSH2_FXP_REMOVE \"%s\"", path); | |
446 | ||
e9a17296 | 447 | id = conn->msg_id++; |
700318f3 | 448 | send_string_request(conn->fd_out, id, SSH2_FXP_REMOVE, path, |
e9a17296 | 449 | strlen(path)); |
450 | status = get_status(conn->fd_in, id); | |
3c0ef626 | 451 | if (status != SSH2_FX_OK) |
452 | error("Couldn't delete file: %s", fx2txt(status)); | |
453 | return(status); | |
454 | } | |
455 | ||
456 | int | |
e9a17296 | 457 | do_mkdir(struct sftp_conn *conn, char *path, Attrib *a) |
3c0ef626 | 458 | { |
459 | u_int status, id; | |
460 | ||
e9a17296 | 461 | id = conn->msg_id++; |
462 | send_string_attrs_request(conn->fd_out, id, SSH2_FXP_MKDIR, path, | |
3c0ef626 | 463 | strlen(path), a); |
464 | ||
e9a17296 | 465 | status = get_status(conn->fd_in, id); |
3c0ef626 | 466 | if (status != SSH2_FX_OK) |
467 | error("Couldn't create directory: %s", fx2txt(status)); | |
468 | ||
469 | return(status); | |
470 | } | |
471 | ||
472 | int | |
e9a17296 | 473 | do_rmdir(struct sftp_conn *conn, char *path) |
3c0ef626 | 474 | { |
475 | u_int status, id; | |
476 | ||
e9a17296 | 477 | id = conn->msg_id++; |
478 | send_string_request(conn->fd_out, id, SSH2_FXP_RMDIR, path, | |
479 | strlen(path)); | |
3c0ef626 | 480 | |
e9a17296 | 481 | status = get_status(conn->fd_in, id); |
3c0ef626 | 482 | if (status != SSH2_FX_OK) |
483 | error("Couldn't remove directory: %s", fx2txt(status)); | |
484 | ||
485 | return(status); | |
486 | } | |
487 | ||
488 | Attrib * | |
e9a17296 | 489 | do_stat(struct sftp_conn *conn, char *path, int quiet) |
3c0ef626 | 490 | { |
491 | u_int id; | |
492 | ||
e9a17296 | 493 | id = conn->msg_id++; |
494 | ||
700318f3 | 495 | send_string_request(conn->fd_out, id, |
496 | conn->version == 0 ? SSH2_FXP_STAT_VERSION_0 : SSH2_FXP_STAT, | |
e9a17296 | 497 | path, strlen(path)); |
498 | ||
499 | return(get_decode_stat(conn->fd_in, id, quiet)); | |
3c0ef626 | 500 | } |
501 | ||
502 | Attrib * | |
e9a17296 | 503 | do_lstat(struct sftp_conn *conn, char *path, int quiet) |
3c0ef626 | 504 | { |
505 | u_int id; | |
506 | ||
e9a17296 | 507 | if (conn->version == 0) { |
508 | if (quiet) | |
509 | debug("Server version does not support lstat operation"); | |
510 | else | |
0fff78ff | 511 | logit("Server version does not support lstat operation"); |
700318f3 | 512 | return(do_stat(conn, path, quiet)); |
e9a17296 | 513 | } |
514 | ||
515 | id = conn->msg_id++; | |
516 | send_string_request(conn->fd_out, id, SSH2_FXP_LSTAT, path, | |
517 | strlen(path)); | |
518 | ||
519 | return(get_decode_stat(conn->fd_in, id, quiet)); | |
3c0ef626 | 520 | } |
521 | ||
522 | Attrib * | |
e9a17296 | 523 | do_fstat(struct sftp_conn *conn, char *handle, u_int handle_len, int quiet) |
3c0ef626 | 524 | { |
525 | u_int id; | |
526 | ||
e9a17296 | 527 | id = conn->msg_id++; |
528 | send_string_request(conn->fd_out, id, SSH2_FXP_FSTAT, handle, | |
529 | handle_len); | |
530 | ||
531 | return(get_decode_stat(conn->fd_in, id, quiet)); | |
3c0ef626 | 532 | } |
533 | ||
534 | int | |
e9a17296 | 535 | do_setstat(struct sftp_conn *conn, char *path, Attrib *a) |
3c0ef626 | 536 | { |
537 | u_int status, id; | |
538 | ||
e9a17296 | 539 | id = conn->msg_id++; |
540 | send_string_attrs_request(conn->fd_out, id, SSH2_FXP_SETSTAT, path, | |
3c0ef626 | 541 | strlen(path), a); |
542 | ||
e9a17296 | 543 | status = get_status(conn->fd_in, id); |
3c0ef626 | 544 | if (status != SSH2_FX_OK) |
545 | error("Couldn't setstat on \"%s\": %s", path, | |
546 | fx2txt(status)); | |
547 | ||
548 | return(status); | |
549 | } | |
550 | ||
551 | int | |
e9a17296 | 552 | do_fsetstat(struct sftp_conn *conn, char *handle, u_int handle_len, |
3c0ef626 | 553 | Attrib *a) |
554 | { | |
555 | u_int status, id; | |
556 | ||
e9a17296 | 557 | id = conn->msg_id++; |
558 | send_string_attrs_request(conn->fd_out, id, SSH2_FXP_FSETSTAT, handle, | |
3c0ef626 | 559 | handle_len, a); |
560 | ||
e9a17296 | 561 | status = get_status(conn->fd_in, id); |
3c0ef626 | 562 | if (status != SSH2_FX_OK) |
563 | error("Couldn't fsetstat: %s", fx2txt(status)); | |
564 | ||
565 | return(status); | |
566 | } | |
567 | ||
568 | char * | |
e9a17296 | 569 | do_realpath(struct sftp_conn *conn, char *path) |
3c0ef626 | 570 | { |
571 | Buffer msg; | |
572 | u_int type, expected_id, count, id; | |
573 | char *filename, *longname; | |
574 | Attrib *a; | |
575 | ||
e9a17296 | 576 | expected_id = id = conn->msg_id++; |
577 | send_string_request(conn->fd_out, id, SSH2_FXP_REALPATH, path, | |
578 | strlen(path)); | |
3c0ef626 | 579 | |
580 | buffer_init(&msg); | |
581 | ||
e9a17296 | 582 | get_msg(conn->fd_in, &msg); |
3c0ef626 | 583 | type = buffer_get_char(&msg); |
584 | id = buffer_get_int(&msg); | |
585 | ||
586 | if (id != expected_id) | |
680cee3b | 587 | fatal("ID mismatch (%u != %u)", id, expected_id); |
3c0ef626 | 588 | |
589 | if (type == SSH2_FXP_STATUS) { | |
590 | u_int status = buffer_get_int(&msg); | |
591 | ||
592 | error("Couldn't canonicalise: %s", fx2txt(status)); | |
593 | return(NULL); | |
594 | } else if (type != SSH2_FXP_NAME) | |
680cee3b | 595 | fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", |
3c0ef626 | 596 | SSH2_FXP_NAME, type); |
597 | ||
598 | count = buffer_get_int(&msg); | |
599 | if (count != 1) | |
600 | fatal("Got multiple names (%d) from SSH_FXP_REALPATH", count); | |
601 | ||
602 | filename = buffer_get_string(&msg, NULL); | |
603 | longname = buffer_get_string(&msg, NULL); | |
604 | a = decode_attrib(&msg); | |
605 | ||
606 | debug3("SSH_FXP_REALPATH %s -> %s", path, filename); | |
607 | ||
608 | xfree(longname); | |
609 | ||
610 | buffer_free(&msg); | |
611 | ||
612 | return(filename); | |
613 | } | |
614 | ||
615 | int | |
e9a17296 | 616 | do_rename(struct sftp_conn *conn, char *oldpath, char *newpath) |
3c0ef626 | 617 | { |
618 | Buffer msg; | |
619 | u_int status, id; | |
620 | ||
621 | buffer_init(&msg); | |
622 | ||
623 | /* Send rename request */ | |
e9a17296 | 624 | id = conn->msg_id++; |
3c0ef626 | 625 | buffer_put_char(&msg, SSH2_FXP_RENAME); |
626 | buffer_put_int(&msg, id); | |
627 | buffer_put_cstring(&msg, oldpath); | |
628 | buffer_put_cstring(&msg, newpath); | |
e9a17296 | 629 | send_msg(conn->fd_out, &msg); |
3c0ef626 | 630 | debug3("Sent message SSH2_FXP_RENAME \"%s\" -> \"%s\"", oldpath, |
631 | newpath); | |
632 | buffer_free(&msg); | |
633 | ||
e9a17296 | 634 | status = get_status(conn->fd_in, id); |
3c0ef626 | 635 | if (status != SSH2_FX_OK) |
e9a17296 | 636 | error("Couldn't rename file \"%s\" to \"%s\": %s", oldpath, |
637 | newpath, fx2txt(status)); | |
3c0ef626 | 638 | |
639 | return(status); | |
640 | } | |
641 | ||
642 | int | |
e9a17296 | 643 | do_symlink(struct sftp_conn *conn, char *oldpath, char *newpath) |
3c0ef626 | 644 | { |
645 | Buffer msg; | |
646 | u_int status, id; | |
647 | ||
e9a17296 | 648 | if (conn->version < 3) { |
649 | error("This server does not support the symlink operation"); | |
650 | return(SSH2_FX_OP_UNSUPPORTED); | |
651 | } | |
652 | ||
3c0ef626 | 653 | buffer_init(&msg); |
654 | ||
c9f39d2c | 655 | /* Send symlink request */ |
e9a17296 | 656 | id = conn->msg_id++; |
3c0ef626 | 657 | buffer_put_char(&msg, SSH2_FXP_SYMLINK); |
658 | buffer_put_int(&msg, id); | |
659 | buffer_put_cstring(&msg, oldpath); | |
660 | buffer_put_cstring(&msg, newpath); | |
e9a17296 | 661 | send_msg(conn->fd_out, &msg); |
3c0ef626 | 662 | debug3("Sent message SSH2_FXP_SYMLINK \"%s\" -> \"%s\"", oldpath, |
663 | newpath); | |
664 | buffer_free(&msg); | |
665 | ||
e9a17296 | 666 | status = get_status(conn->fd_in, id); |
3c0ef626 | 667 | if (status != SSH2_FX_OK) |
6a9b3198 | 668 | error("Couldn't symlink file \"%s\" to \"%s\": %s", oldpath, |
e9a17296 | 669 | newpath, fx2txt(status)); |
3c0ef626 | 670 | |
671 | return(status); | |
672 | } | |
673 | ||
674 | char * | |
e9a17296 | 675 | do_readlink(struct sftp_conn *conn, char *path) |
3c0ef626 | 676 | { |
677 | Buffer msg; | |
678 | u_int type, expected_id, count, id; | |
679 | char *filename, *longname; | |
680 | Attrib *a; | |
681 | ||
e9a17296 | 682 | expected_id = id = conn->msg_id++; |
683 | send_string_request(conn->fd_out, id, SSH2_FXP_READLINK, path, | |
684 | strlen(path)); | |
3c0ef626 | 685 | |
686 | buffer_init(&msg); | |
687 | ||
e9a17296 | 688 | get_msg(conn->fd_in, &msg); |
3c0ef626 | 689 | type = buffer_get_char(&msg); |
690 | id = buffer_get_int(&msg); | |
691 | ||
692 | if (id != expected_id) | |
680cee3b | 693 | fatal("ID mismatch (%u != %u)", id, expected_id); |
3c0ef626 | 694 | |
695 | if (type == SSH2_FXP_STATUS) { | |
696 | u_int status = buffer_get_int(&msg); | |
697 | ||
698 | error("Couldn't readlink: %s", fx2txt(status)); | |
699 | return(NULL); | |
700 | } else if (type != SSH2_FXP_NAME) | |
680cee3b | 701 | fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", |
3c0ef626 | 702 | SSH2_FXP_NAME, type); |
703 | ||
704 | count = buffer_get_int(&msg); | |
705 | if (count != 1) | |
706 | fatal("Got multiple names (%d) from SSH_FXP_READLINK", count); | |
707 | ||
708 | filename = buffer_get_string(&msg, NULL); | |
709 | longname = buffer_get_string(&msg, NULL); | |
710 | a = decode_attrib(&msg); | |
711 | ||
712 | debug3("SSH_FXP_READLINK %s -> %s", path, filename); | |
713 | ||
714 | xfree(longname); | |
715 | ||
716 | buffer_free(&msg); | |
717 | ||
718 | return(filename); | |
719 | } | |
720 | ||
e9a17296 | 721 | static void |
722 | send_read_request(int fd_out, u_int id, u_int64_t offset, u_int len, | |
723 | char *handle, u_int handle_len) | |
724 | { | |
725 | Buffer msg; | |
700318f3 | 726 | |
e9a17296 | 727 | buffer_init(&msg); |
728 | buffer_clear(&msg); | |
729 | buffer_put_char(&msg, SSH2_FXP_READ); | |
730 | buffer_put_int(&msg, id); | |
731 | buffer_put_string(&msg, handle, handle_len); | |
732 | buffer_put_int64(&msg, offset); | |
733 | buffer_put_int(&msg, len); | |
734 | send_msg(fd_out, &msg); | |
735 | buffer_free(&msg); | |
700318f3 | 736 | } |
e9a17296 | 737 | |
3c0ef626 | 738 | int |
e9a17296 | 739 | do_download(struct sftp_conn *conn, char *remote_path, char *local_path, |
3c0ef626 | 740 | int pflag) |
741 | { | |
3c0ef626 | 742 | Attrib junk, *a; |
e9a17296 | 743 | Buffer msg; |
744 | char *handle; | |
665a873d | 745 | int local_fd, status = 0, write_error; |
e9a17296 | 746 | int read_error, write_errno; |
747 | u_int64_t offset, size; | |
665a873d | 748 | u_int handle_len, mode, type, id, buflen, num_req, max_req; |
6a9b3198 | 749 | off_t progress_counter; |
e9a17296 | 750 | struct request { |
751 | u_int id; | |
752 | u_int len; | |
753 | u_int64_t offset; | |
700318f3 | 754 | TAILQ_ENTRY(request) tq; |
e9a17296 | 755 | }; |
756 | TAILQ_HEAD(reqhead, request) requests; | |
757 | struct request *req; | |
3c0ef626 | 758 | |
e9a17296 | 759 | TAILQ_INIT(&requests); |
760 | ||
761 | a = do_stat(conn, remote_path, 0); | |
3c0ef626 | 762 | if (a == NULL) |
763 | return(-1); | |
764 | ||
765 | /* XXX: should we preserve set[ug]id? */ | |
766 | if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) | |
6a9b3198 | 767 | mode = a->perm & 0777; |
3c0ef626 | 768 | else |
769 | mode = 0666; | |
770 | ||
771 | if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) && | |
6a9b3198 | 772 | (!S_ISREG(a->perm))) { |
773 | error("Cannot download non-regular file: %s", remote_path); | |
3c0ef626 | 774 | return(-1); |
775 | } | |
776 | ||
e9a17296 | 777 | if (a->flags & SSH2_FILEXFER_ATTR_SIZE) |
778 | size = a->size; | |
779 | else | |
780 | size = 0; | |
3c0ef626 | 781 | |
e9a17296 | 782 | buflen = conn->transfer_buflen; |
3c0ef626 | 783 | buffer_init(&msg); |
784 | ||
785 | /* Send open request */ | |
e9a17296 | 786 | id = conn->msg_id++; |
3c0ef626 | 787 | buffer_put_char(&msg, SSH2_FXP_OPEN); |
788 | buffer_put_int(&msg, id); | |
789 | buffer_put_cstring(&msg, remote_path); | |
790 | buffer_put_int(&msg, SSH2_FXF_READ); | |
791 | attrib_clear(&junk); /* Send empty attributes */ | |
792 | encode_attrib(&msg, &junk); | |
e9a17296 | 793 | send_msg(conn->fd_out, &msg); |
680cee3b | 794 | debug3("Sent message SSH2_FXP_OPEN I:%u P:%s", id, remote_path); |
3c0ef626 | 795 | |
e9a17296 | 796 | handle = get_handle(conn->fd_in, id, &handle_len); |
3c0ef626 | 797 | if (handle == NULL) { |
798 | buffer_free(&msg); | |
e9a17296 | 799 | return(-1); |
800 | } | |
801 | ||
cdd66111 | 802 | local_fd = open(local_path, O_WRONLY | O_CREAT | O_TRUNC, |
6a9b3198 | 803 | mode | S_IWRITE); |
e9a17296 | 804 | if (local_fd == -1) { |
805 | error("Couldn't open local file \"%s\" for writing: %s", | |
806 | local_path, strerror(errno)); | |
807 | buffer_free(&msg); | |
808 | xfree(handle); | |
3c0ef626 | 809 | return(-1); |
810 | } | |
811 | ||
812 | /* Read from remote and write to local */ | |
e9a17296 | 813 | write_error = read_error = write_errno = num_req = offset = 0; |
814 | max_req = 1; | |
6a9b3198 | 815 | progress_counter = 0; |
816 | ||
99be0775 | 817 | if (showprogress && size != 0) |
818 | start_progress_meter(remote_path, size, &progress_counter); | |
6a9b3198 | 819 | |
e9a17296 | 820 | while (num_req > 0 || max_req > 0) { |
3c0ef626 | 821 | char *data; |
e9a17296 | 822 | u_int len; |
3c0ef626 | 823 | |
c9f39d2c | 824 | /* |
825 | * Simulate EOF on interrupt: stop sending new requests and | |
826 | * allow outstanding requests to drain gracefully | |
827 | */ | |
828 | if (interrupted) { | |
829 | if (num_req == 0) /* If we haven't started yet... */ | |
830 | break; | |
831 | max_req = 0; | |
832 | } | |
833 | ||
e9a17296 | 834 | /* Send some more requests */ |
835 | while (num_req < max_req) { | |
700318f3 | 836 | debug3("Request range %llu -> %llu (%d/%d)", |
837 | (unsigned long long)offset, | |
838 | (unsigned long long)offset + buflen - 1, | |
839 | num_req, max_req); | |
e9a17296 | 840 | req = xmalloc(sizeof(*req)); |
841 | req->id = conn->msg_id++; | |
842 | req->len = buflen; | |
843 | req->offset = offset; | |
844 | offset += buflen; | |
845 | num_req++; | |
846 | TAILQ_INSERT_TAIL(&requests, req, tq); | |
700318f3 | 847 | send_read_request(conn->fd_out, req->id, req->offset, |
e9a17296 | 848 | req->len, handle, handle_len); |
849 | } | |
3c0ef626 | 850 | |
851 | buffer_clear(&msg); | |
e9a17296 | 852 | get_msg(conn->fd_in, &msg); |
3c0ef626 | 853 | type = buffer_get_char(&msg); |
854 | id = buffer_get_int(&msg); | |
680cee3b | 855 | debug3("Received reply T:%u I:%u R:%d", type, id, max_req); |
e9a17296 | 856 | |
857 | /* Find the request in our queue */ | |
dec6d9fe | 858 | for (req = TAILQ_FIRST(&requests); |
e9a17296 | 859 | req != NULL && req->id != id; |
860 | req = TAILQ_NEXT(req, tq)) | |
861 | ; | |
862 | if (req == NULL) | |
863 | fatal("Unexpected reply %u", id); | |
864 | ||
865 | switch (type) { | |
866 | case SSH2_FXP_STATUS: | |
3c0ef626 | 867 | status = buffer_get_int(&msg); |
e9a17296 | 868 | if (status != SSH2_FX_EOF) |
869 | read_error = 1; | |
870 | max_req = 0; | |
871 | TAILQ_REMOVE(&requests, req, tq); | |
872 | xfree(req); | |
873 | num_req--; | |
874 | break; | |
875 | case SSH2_FXP_DATA: | |
876 | data = buffer_get_string(&msg, &len); | |
700318f3 | 877 | debug3("Received data %llu -> %llu", |
878 | (unsigned long long)req->offset, | |
879 | (unsigned long long)req->offset + len - 1); | |
e9a17296 | 880 | if (len > req->len) |
881 | fatal("Received more data than asked for " | |
6a9b3198 | 882 | "%u > %u", len, req->len); |
e9a17296 | 883 | if ((lseek(local_fd, req->offset, SEEK_SET) == -1 || |
0fff78ff | 884 | atomicio(vwrite, local_fd, data, len) != len) && |
e9a17296 | 885 | !write_error) { |
886 | write_errno = errno; | |
887 | write_error = 1; | |
888 | max_req = 0; | |
889 | } | |
6a9b3198 | 890 | progress_counter += len; |
e9a17296 | 891 | xfree(data); |
3c0ef626 | 892 | |
e9a17296 | 893 | if (len == req->len) { |
894 | TAILQ_REMOVE(&requests, req, tq); | |
895 | xfree(req); | |
896 | num_req--; | |
897 | } else { | |
898 | /* Resend the request for the missing data */ | |
899 | debug3("Short data block, re-requesting " | |
700318f3 | 900 | "%llu -> %llu (%2d)", |
901 | (unsigned long long)req->offset + len, | |
902 | (unsigned long long)req->offset + | |
903 | req->len - 1, num_req); | |
e9a17296 | 904 | req->id = conn->msg_id++; |
905 | req->len -= len; | |
906 | req->offset += len; | |
700318f3 | 907 | send_read_request(conn->fd_out, req->id, |
e9a17296 | 908 | req->offset, req->len, handle, handle_len); |
909 | /* Reduce the request size */ | |
910 | if (len < buflen) | |
911 | buflen = MAX(MIN_READ_SIZE, len); | |
3c0ef626 | 912 | } |
e9a17296 | 913 | if (max_req > 0) { /* max_req = 0 iff EOF received */ |
914 | if (size > 0 && offset > size) { | |
915 | /* Only one request at a time | |
916 | * after the expected EOF */ | |
917 | debug3("Finish at %llu (%2d)", | |
700318f3 | 918 | (unsigned long long)offset, |
919 | num_req); | |
e9a17296 | 920 | max_req = 1; |
c9f39d2c | 921 | } else if (max_req <= conn->num_requests) { |
e9a17296 | 922 | ++max_req; |
923 | } | |
924 | } | |
925 | break; | |
926 | default: | |
680cee3b | 927 | fatal("Expected SSH2_FXP_DATA(%u) packet, got %u", |
3c0ef626 | 928 | SSH2_FXP_DATA, type); |
929 | } | |
3c0ef626 | 930 | } |
3c0ef626 | 931 | |
6a9b3198 | 932 | if (showprogress && size) |
933 | stop_progress_meter(); | |
934 | ||
e9a17296 | 935 | /* Sanity check */ |
936 | if (TAILQ_FIRST(&requests) != NULL) | |
937 | fatal("Transfer complete, but requests still in queue"); | |
938 | ||
939 | if (read_error) { | |
700318f3 | 940 | error("Couldn't read from remote file \"%s\" : %s", |
e9a17296 | 941 | remote_path, fx2txt(status)); |
942 | do_close(conn, handle, handle_len); | |
943 | } else if (write_error) { | |
944 | error("Couldn't write to \"%s\": %s", local_path, | |
945 | strerror(write_errno)); | |
946 | status = -1; | |
947 | do_close(conn, handle, handle_len); | |
948 | } else { | |
949 | status = do_close(conn, handle, handle_len); | |
950 | ||
951 | /* Override umask and utimes if asked */ | |
3c0ef626 | 952 | #ifdef HAVE_FCHMOD |
e9a17296 | 953 | if (pflag && fchmod(local_fd, mode) == -1) |
cdd66111 | 954 | #else |
e9a17296 | 955 | if (pflag && chmod(local_path, mode) == -1) |
3c0ef626 | 956 | #endif /* HAVE_FCHMOD */ |
e9a17296 | 957 | error("Couldn't set mode on \"%s\": %s", local_path, |
6a9b3198 | 958 | strerror(errno)); |
e9a17296 | 959 | if (pflag && (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME)) { |
960 | struct timeval tv[2]; | |
961 | tv[0].tv_sec = a->atime; | |
962 | tv[1].tv_sec = a->mtime; | |
963 | tv[0].tv_usec = tv[1].tv_usec = 0; | |
964 | if (utimes(local_path, tv) == -1) | |
965 | error("Can't set times on \"%s\": %s", | |
6a9b3198 | 966 | local_path, strerror(errno)); |
e9a17296 | 967 | } |
3c0ef626 | 968 | } |
3c0ef626 | 969 | close(local_fd); |
970 | buffer_free(&msg); | |
971 | xfree(handle); | |
e9a17296 | 972 | |
973 | return(status); | |
3c0ef626 | 974 | } |
975 | ||
976 | int | |
e9a17296 | 977 | do_upload(struct sftp_conn *conn, char *local_path, char *remote_path, |
3c0ef626 | 978 | int pflag) |
979 | { | |
e9a17296 | 980 | int local_fd, status; |
981 | u_int handle_len, id, type; | |
3c0ef626 | 982 | u_int64_t offset; |
e9a17296 | 983 | char *handle, *data; |
3c0ef626 | 984 | Buffer msg; |
985 | struct stat sb; | |
986 | Attrib a; | |
e9a17296 | 987 | u_int32_t startid; |
988 | u_int32_t ackid; | |
989 | struct outstanding_ack { | |
990 | u_int id; | |
991 | u_int len; | |
992 | u_int64_t offset; | |
700318f3 | 993 | TAILQ_ENTRY(outstanding_ack) tq; |
e9a17296 | 994 | }; |
995 | TAILQ_HEAD(ackhead, outstanding_ack) acks; | |
c9f39d2c | 996 | struct outstanding_ack *ack = NULL; |
e9a17296 | 997 | |
998 | TAILQ_INIT(&acks); | |
3c0ef626 | 999 | |
1000 | if ((local_fd = open(local_path, O_RDONLY, 0)) == -1) { | |
1001 | error("Couldn't open local file \"%s\" for reading: %s", | |
1002 | local_path, strerror(errno)); | |
1003 | return(-1); | |
1004 | } | |
1005 | if (fstat(local_fd, &sb) == -1) { | |
1006 | error("Couldn't fstat local file \"%s\": %s", | |
1007 | local_path, strerror(errno)); | |
1008 | close(local_fd); | |
1009 | return(-1); | |
1010 | } | |
6a9b3198 | 1011 | if (!S_ISREG(sb.st_mode)) { |
1012 | error("%s is not a regular file", local_path); | |
1013 | close(local_fd); | |
1014 | return(-1); | |
1015 | } | |
3c0ef626 | 1016 | stat_to_attrib(&sb, &a); |
1017 | ||
1018 | a.flags &= ~SSH2_FILEXFER_ATTR_SIZE; | |
1019 | a.flags &= ~SSH2_FILEXFER_ATTR_UIDGID; | |
1020 | a.perm &= 0777; | |
1021 | if (!pflag) | |
1022 | a.flags &= ~SSH2_FILEXFER_ATTR_ACMODTIME; | |
1023 | ||
1024 | buffer_init(&msg); | |
1025 | ||
1026 | /* Send open request */ | |
e9a17296 | 1027 | id = conn->msg_id++; |
3c0ef626 | 1028 | buffer_put_char(&msg, SSH2_FXP_OPEN); |
1029 | buffer_put_int(&msg, id); | |
1030 | buffer_put_cstring(&msg, remote_path); | |
1031 | buffer_put_int(&msg, SSH2_FXF_WRITE|SSH2_FXF_CREAT|SSH2_FXF_TRUNC); | |
1032 | encode_attrib(&msg, &a); | |
e9a17296 | 1033 | send_msg(conn->fd_out, &msg); |
680cee3b | 1034 | debug3("Sent message SSH2_FXP_OPEN I:%u P:%s", id, remote_path); |
3c0ef626 | 1035 | |
1036 | buffer_clear(&msg); | |
1037 | ||
e9a17296 | 1038 | handle = get_handle(conn->fd_in, id, &handle_len); |
3c0ef626 | 1039 | if (handle == NULL) { |
1040 | close(local_fd); | |
1041 | buffer_free(&msg); | |
1042 | return(-1); | |
1043 | } | |
1044 | ||
e9a17296 | 1045 | startid = ackid = id + 1; |
1046 | data = xmalloc(conn->transfer_buflen); | |
1047 | ||
3c0ef626 | 1048 | /* Read from local and write to remote */ |
1049 | offset = 0; | |
6a9b3198 | 1050 | if (showprogress) |
1051 | start_progress_meter(local_path, sb.st_size, &offset); | |
6a9b3198 | 1052 | |
e9a17296 | 1053 | for (;;) { |
3c0ef626 | 1054 | int len; |
3c0ef626 | 1055 | |
1056 | /* | |
c9f39d2c | 1057 | * Can't use atomicio here because it returns 0 on EOF, |
1058 | * thus losing the last block of the file. | |
1059 | * Simulate an EOF on interrupt, allowing ACKs from the | |
1060 | * server to drain. | |
3c0ef626 | 1061 | */ |
c9f39d2c | 1062 | if (interrupted) |
1063 | len = 0; | |
1064 | else do | |
e9a17296 | 1065 | len = read(local_fd, data, conn->transfer_buflen); |
3c0ef626 | 1066 | while ((len == -1) && (errno == EINTR || errno == EAGAIN)); |
1067 | ||
1068 | if (len == -1) | |
1069 | fatal("Couldn't read from \"%s\": %s", local_path, | |
1070 | strerror(errno)); | |
e9a17296 | 1071 | |
1072 | if (len != 0) { | |
1073 | ack = xmalloc(sizeof(*ack)); | |
1074 | ack->id = ++id; | |
1075 | ack->offset = offset; | |
1076 | ack->len = len; | |
1077 | TAILQ_INSERT_TAIL(&acks, ack, tq); | |
1078 | ||
1079 | buffer_clear(&msg); | |
1080 | buffer_put_char(&msg, SSH2_FXP_WRITE); | |
1081 | buffer_put_int(&msg, ack->id); | |
1082 | buffer_put_string(&msg, handle, handle_len); | |
1083 | buffer_put_int64(&msg, offset); | |
1084 | buffer_put_string(&msg, data, len); | |
1085 | send_msg(conn->fd_out, &msg); | |
680cee3b | 1086 | debug3("Sent message SSH2_FXP_WRITE I:%u O:%llu S:%u", |
6a9b3198 | 1087 | id, (unsigned long long)offset, len); |
e9a17296 | 1088 | } else if (TAILQ_FIRST(&acks) == NULL) |
3c0ef626 | 1089 | break; |
1090 | ||
e9a17296 | 1091 | if (ack == NULL) |
1092 | fatal("Unexpected ACK %u", id); | |
1093 | ||
700318f3 | 1094 | if (id == startid || len == 0 || |
e9a17296 | 1095 | id - ackid >= conn->num_requests) { |
f5799ae1 | 1096 | u_int r_id; |
700318f3 | 1097 | |
e9a17296 | 1098 | buffer_clear(&msg); |
1099 | get_msg(conn->fd_in, &msg); | |
1100 | type = buffer_get_char(&msg); | |
700318f3 | 1101 | r_id = buffer_get_int(&msg); |
3c0ef626 | 1102 | |
e9a17296 | 1103 | if (type != SSH2_FXP_STATUS) |
1104 | fatal("Expected SSH2_FXP_STATUS(%d) packet, " | |
1105 | "got %d", SSH2_FXP_STATUS, type); | |
1106 | ||
1107 | status = buffer_get_int(&msg); | |
1108 | debug3("SSH2_FXP_STATUS %d", status); | |
1109 | ||
1110 | /* Find the request in our queue */ | |
dec6d9fe | 1111 | for (ack = TAILQ_FIRST(&acks); |
700318f3 | 1112 | ack != NULL && ack->id != r_id; |
e9a17296 | 1113 | ack = TAILQ_NEXT(ack, tq)) |
1114 | ; | |
1115 | if (ack == NULL) | |
680cee3b | 1116 | fatal("Can't find request for ID %u", r_id); |
e9a17296 | 1117 | TAILQ_REMOVE(&acks, ack, tq); |
1118 | ||
1119 | if (status != SSH2_FX_OK) { | |
1120 | error("Couldn't write to remote file \"%s\": %s", | |
6a9b3198 | 1121 | remote_path, fx2txt(status)); |
e9a17296 | 1122 | do_close(conn, handle, handle_len); |
1123 | close(local_fd); | |
6a9b3198 | 1124 | xfree(data); |
1125 | xfree(ack); | |
e9a17296 | 1126 | goto done; |
1127 | } | |
680cee3b | 1128 | debug3("In write loop, ack for %u %u bytes at %llu", |
665a873d | 1129 | ack->id, ack->len, (unsigned long long)ack->offset); |
e9a17296 | 1130 | ++ackid; |
41b2f314 | 1131 | xfree(ack); |
e9a17296 | 1132 | } |
3c0ef626 | 1133 | offset += len; |
1134 | } | |
6a9b3198 | 1135 | if (showprogress) |
1136 | stop_progress_meter(); | |
e9a17296 | 1137 | xfree(data); |
3c0ef626 | 1138 | |
1139 | if (close(local_fd) == -1) { | |
1140 | error("Couldn't close local file \"%s\": %s", local_path, | |
1141 | strerror(errno)); | |
e9a17296 | 1142 | do_close(conn, handle, handle_len); |
3c0ef626 | 1143 | status = -1; |
1144 | goto done; | |
1145 | } | |
1146 | ||
1147 | /* Override umask and utimes if asked */ | |
1148 | if (pflag) | |
e9a17296 | 1149 | do_fsetstat(conn, handle, handle_len, &a); |
3c0ef626 | 1150 | |
e9a17296 | 1151 | status = do_close(conn, handle, handle_len); |
3c0ef626 | 1152 | |
1153 | done: | |
1154 | xfree(handle); | |
1155 | buffer_free(&msg); | |
e9a17296 | 1156 | return(status); |
3c0ef626 | 1157 | } |