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028094f4 | 1 | /* $OpenBSD: sftp-client.c,v 1.67 2006/07/11 20:07:25 stevesk Exp $ */ |
61e96248 | 2 | /* |
ab3932ab | 3 | * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org> |
61e96248 | 4 | * |
ab3932ab | 5 | * Permission to use, copy, modify, and distribute this software for any |
6 | * purpose with or without fee is hereby granted, provided that the above | |
7 | * copyright notice and this permission notice appear in all copies. | |
61e96248 | 8 | * |
ab3932ab | 9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
61e96248 | 16 | */ |
17 | ||
18 | /* XXX: memleaks */ | |
19 | /* XXX: signed vs unsigned */ | |
22e6c827 | 20 | /* XXX: remove all logging, only return status codes */ |
61e96248 | 21 | /* XXX: copy between two remote sites */ |
22 | ||
23 | #include "includes.h" | |
4095f623 | 24 | |
25 | #include <sys/types.h> | |
26 | #ifdef HAVE_SYS_STAT_H | |
27 | # include <sys/stat.h> | |
28 | #endif | |
d3221cca | 29 | |
028094f4 | 30 | #include <errno.h> |
d3221cca | 31 | #include <fcntl.h> |
32 | #include <signal.h> | |
c25d3df7 | 33 | |
9fd2a215 | 34 | #include "openbsd-compat/sys-queue.h" |
61e96248 | 35 | |
61e96248 | 36 | #include "buffer.h" |
37 | #include "bufaux.h" | |
61e96248 | 38 | #include "xmalloc.h" |
39 | #include "log.h" | |
40 | #include "atomicio.h" | |
b65c3807 | 41 | #include "progressmeter.h" |
51e7a012 | 42 | #include "misc.h" |
61e96248 | 43 | |
44 | #include "sftp.h" | |
45 | #include "sftp-common.h" | |
46 | #include "sftp-client.h" | |
47 | ||
0e5de6f8 | 48 | extern volatile sig_atomic_t interrupted; |
b65c3807 | 49 | extern int showprogress; |
50 | ||
2db34ac9 | 51 | /* Minimum amount of data to read at a time */ |
c25d3df7 | 52 | #define MIN_READ_SIZE 512 |
53 | ||
22e6c827 | 54 | struct sftp_conn { |
55 | int fd_in; | |
56 | int fd_out; | |
57 | u_int transfer_buflen; | |
58 | u_int num_requests; | |
59 | u_int version; | |
60 | u_int msg_id; | |
61 | }; | |
9c5a8165 | 62 | |
396c147e | 63 | static void |
61e96248 | 64 | send_msg(int fd, Buffer *m) |
65 | { | |
bf0bf24b | 66 | u_char mlen[4]; |
2c4369de | 67 | struct iovec iov[2]; |
bf0bf24b | 68 | |
3eee3b86 | 69 | if (buffer_len(m) > SFTP_MAX_MSG_LENGTH) |
bf0bf24b | 70 | fatal("Outbound message too long %u", buffer_len(m)); |
61e96248 | 71 | |
bf0bf24b | 72 | /* Send length first */ |
51e7a012 | 73 | put_u32(mlen, buffer_len(m)); |
2c4369de | 74 | iov[0].iov_base = mlen; |
75 | iov[0].iov_len = sizeof(mlen); | |
76 | iov[1].iov_base = buffer_ptr(m); | |
77 | iov[1].iov_len = buffer_len(m); | |
78 | ||
79 | if (atomiciov(writev, fd, iov, 2) != buffer_len(m) + sizeof(mlen)) | |
61e96248 | 80 | fatal("Couldn't send packet: %s", strerror(errno)); |
81 | ||
bf0bf24b | 82 | buffer_clear(m); |
61e96248 | 83 | } |
84 | ||
396c147e | 85 | static void |
61e96248 | 86 | get_msg(int fd, Buffer *m) |
87 | { | |
bf0bf24b | 88 | u_int msg_len; |
61e96248 | 89 | |
bf0bf24b | 90 | buffer_append_space(m, 4); |
05624c18 | 91 | if (atomicio(read, fd, buffer_ptr(m), 4) != 4) { |
92 | if (errno == EPIPE) | |
93 | fatal("Connection closed"); | |
94 | else | |
95 | fatal("Couldn't read packet: %s", strerror(errno)); | |
96 | } | |
61e96248 | 97 | |
bf0bf24b | 98 | msg_len = buffer_get_int(m); |
3eee3b86 | 99 | if (msg_len > SFTP_MAX_MSG_LENGTH) |
9906a836 | 100 | fatal("Received message too long %u", msg_len); |
61e96248 | 101 | |
bf0bf24b | 102 | buffer_append_space(m, msg_len); |
05624c18 | 103 | if (atomicio(read, fd, buffer_ptr(m), msg_len) != msg_len) { |
104 | if (errno == EPIPE) | |
105 | fatal("Connection closed"); | |
106 | else | |
107 | fatal("Read packet: %s", strerror(errno)); | |
108 | } | |
61e96248 | 109 | } |
110 | ||
396c147e | 111 | static void |
61e96248 | 112 | send_string_request(int fd, u_int id, u_int code, char *s, |
113 | u_int len) | |
114 | { | |
115 | Buffer msg; | |
116 | ||
117 | buffer_init(&msg); | |
118 | buffer_put_char(&msg, code); | |
119 | buffer_put_int(&msg, id); | |
120 | buffer_put_string(&msg, s, len); | |
121 | send_msg(fd, &msg); | |
9906a836 | 122 | debug3("Sent message fd %d T:%u I:%u", fd, code, id); |
61e96248 | 123 | buffer_free(&msg); |
124 | } | |
125 | ||
396c147e | 126 | static void |
61e96248 | 127 | send_string_attrs_request(int fd, u_int id, u_int code, char *s, |
128 | u_int len, Attrib *a) | |
129 | { | |
130 | Buffer msg; | |
131 | ||
132 | buffer_init(&msg); | |
133 | buffer_put_char(&msg, code); | |
134 | buffer_put_int(&msg, id); | |
135 | buffer_put_string(&msg, s, len); | |
136 | encode_attrib(&msg, a); | |
137 | send_msg(fd, &msg); | |
9906a836 | 138 | debug3("Sent message fd %d T:%u I:%u", fd, code, id); |
61e96248 | 139 | buffer_free(&msg); |
140 | } | |
141 | ||
396c147e | 142 | static u_int |
9906a836 | 143 | get_status(int fd, u_int expected_id) |
61e96248 | 144 | { |
145 | Buffer msg; | |
146 | u_int type, id, status; | |
147 | ||
148 | buffer_init(&msg); | |
149 | get_msg(fd, &msg); | |
150 | type = buffer_get_char(&msg); | |
151 | id = buffer_get_int(&msg); | |
152 | ||
153 | if (id != expected_id) | |
9906a836 | 154 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 155 | if (type != SSH2_FXP_STATUS) |
9906a836 | 156 | fatal("Expected SSH2_FXP_STATUS(%u) packet, got %u", |
61e96248 | 157 | SSH2_FXP_STATUS, type); |
158 | ||
159 | status = buffer_get_int(&msg); | |
160 | buffer_free(&msg); | |
161 | ||
9906a836 | 162 | debug3("SSH2_FXP_STATUS %u", status); |
61e96248 | 163 | |
164 | return(status); | |
165 | } | |
166 | ||
396c147e | 167 | static char * |
61e96248 | 168 | get_handle(int fd, u_int expected_id, u_int *len) |
169 | { | |
170 | Buffer msg; | |
171 | u_int type, id; | |
172 | char *handle; | |
173 | ||
174 | buffer_init(&msg); | |
175 | get_msg(fd, &msg); | |
176 | type = buffer_get_char(&msg); | |
177 | id = buffer_get_int(&msg); | |
178 | ||
179 | if (id != expected_id) | |
9906a836 | 180 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 181 | if (type == SSH2_FXP_STATUS) { |
182 | int status = buffer_get_int(&msg); | |
183 | ||
184 | error("Couldn't get handle: %s", fx2txt(status)); | |
aa41be57 | 185 | buffer_free(&msg); |
61e96248 | 186 | return(NULL); |
187 | } else if (type != SSH2_FXP_HANDLE) | |
9906a836 | 188 | fatal("Expected SSH2_FXP_HANDLE(%u) packet, got %u", |
61e96248 | 189 | SSH2_FXP_HANDLE, type); |
190 | ||
191 | handle = buffer_get_string(&msg, len); | |
192 | buffer_free(&msg); | |
193 | ||
194 | return(handle); | |
195 | } | |
196 | ||
396c147e | 197 | static Attrib * |
d50d9b63 | 198 | get_decode_stat(int fd, u_int expected_id, int quiet) |
61e96248 | 199 | { |
200 | Buffer msg; | |
201 | u_int type, id; | |
202 | Attrib *a; | |
203 | ||
204 | buffer_init(&msg); | |
205 | get_msg(fd, &msg); | |
206 | ||
207 | type = buffer_get_char(&msg); | |
208 | id = buffer_get_int(&msg); | |
209 | ||
9906a836 | 210 | debug3("Received stat reply T:%u I:%u", type, id); |
61e96248 | 211 | if (id != expected_id) |
9906a836 | 212 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 213 | if (type == SSH2_FXP_STATUS) { |
214 | int status = buffer_get_int(&msg); | |
215 | ||
d50d9b63 | 216 | if (quiet) |
217 | debug("Couldn't stat remote file: %s", fx2txt(status)); | |
218 | else | |
219 | error("Couldn't stat remote file: %s", fx2txt(status)); | |
aa41be57 | 220 | buffer_free(&msg); |
61e96248 | 221 | return(NULL); |
222 | } else if (type != SSH2_FXP_ATTRS) { | |
9906a836 | 223 | fatal("Expected SSH2_FXP_ATTRS(%u) packet, got %u", |
61e96248 | 224 | SSH2_FXP_ATTRS, type); |
225 | } | |
226 | a = decode_attrib(&msg); | |
227 | buffer_free(&msg); | |
228 | ||
229 | return(a); | |
230 | } | |
231 | ||
22e6c827 | 232 | struct sftp_conn * |
233 | do_init(int fd_in, int fd_out, u_int transfer_buflen, u_int num_requests) | |
61e96248 | 234 | { |
9906a836 | 235 | u_int type; |
236 | int version; | |
61e96248 | 237 | Buffer msg; |
22e6c827 | 238 | struct sftp_conn *ret; |
61e96248 | 239 | |
240 | buffer_init(&msg); | |
241 | buffer_put_char(&msg, SSH2_FXP_INIT); | |
242 | buffer_put_int(&msg, SSH2_FILEXFER_VERSION); | |
243 | send_msg(fd_out, &msg); | |
244 | ||
245 | buffer_clear(&msg); | |
246 | ||
247 | get_msg(fd_in, &msg); | |
248 | ||
2b87da3b | 249 | /* Expecting a VERSION reply */ |
61e96248 | 250 | if ((type = buffer_get_char(&msg)) != SSH2_FXP_VERSION) { |
9906a836 | 251 | error("Invalid packet back from SSH2_FXP_INIT (type %u)", |
61e96248 | 252 | type); |
253 | buffer_free(&msg); | |
22e6c827 | 254 | return(NULL); |
61e96248 | 255 | } |
256 | version = buffer_get_int(&msg); | |
257 | ||
258 | debug2("Remote version: %d", version); | |
259 | ||
260 | /* Check for extensions */ | |
261 | while (buffer_len(&msg) > 0) { | |
262 | char *name = buffer_get_string(&msg, NULL); | |
263 | char *value = buffer_get_string(&msg, NULL); | |
264 | ||
265 | debug2("Init extension: \"%s\"", name); | |
266 | xfree(name); | |
267 | xfree(value); | |
268 | } | |
269 | ||
270 | buffer_free(&msg); | |
3a7fe5ba | 271 | |
22e6c827 | 272 | ret = xmalloc(sizeof(*ret)); |
273 | ret->fd_in = fd_in; | |
274 | ret->fd_out = fd_out; | |
275 | ret->transfer_buflen = transfer_buflen; | |
276 | ret->num_requests = num_requests; | |
277 | ret->version = version; | |
278 | ret->msg_id = 1; | |
279 | ||
280 | /* Some filexfer v.0 servers don't support large packets */ | |
281 | if (version == 0) | |
92053302 | 282 | ret->transfer_buflen = MIN(ret->transfer_buflen, 20480); |
22e6c827 | 283 | |
284 | return(ret); | |
285 | } | |
286 | ||
287 | u_int | |
288 | sftp_proto_version(struct sftp_conn *conn) | |
289 | { | |
290 | return(conn->version); | |
61e96248 | 291 | } |
292 | ||
293 | int | |
22e6c827 | 294 | do_close(struct sftp_conn *conn, char *handle, u_int handle_len) |
61e96248 | 295 | { |
296 | u_int id, status; | |
297 | Buffer msg; | |
298 | ||
299 | buffer_init(&msg); | |
300 | ||
22e6c827 | 301 | id = conn->msg_id++; |
61e96248 | 302 | buffer_put_char(&msg, SSH2_FXP_CLOSE); |
303 | buffer_put_int(&msg, id); | |
304 | buffer_put_string(&msg, handle, handle_len); | |
22e6c827 | 305 | send_msg(conn->fd_out, &msg); |
9906a836 | 306 | debug3("Sent message SSH2_FXP_CLOSE I:%u", id); |
61e96248 | 307 | |
22e6c827 | 308 | status = get_status(conn->fd_in, id); |
61e96248 | 309 | if (status != SSH2_FX_OK) |
310 | error("Couldn't close file: %s", fx2txt(status)); | |
311 | ||
312 | buffer_free(&msg); | |
313 | ||
314 | return(status); | |
315 | } | |
316 | ||
2e4fb373 | 317 | |
396c147e | 318 | static int |
22e6c827 | 319 | do_lsreaddir(struct sftp_conn *conn, char *path, int printflag, |
2e4fb373 | 320 | SFTP_DIRENT ***dir) |
61e96248 | 321 | { |
322 | Buffer msg; | |
2ceb8101 | 323 | u_int count, type, id, handle_len, i, expected_id, ents = 0; |
61e96248 | 324 | char *handle; |
325 | ||
22e6c827 | 326 | id = conn->msg_id++; |
61e96248 | 327 | |
328 | buffer_init(&msg); | |
329 | buffer_put_char(&msg, SSH2_FXP_OPENDIR); | |
330 | buffer_put_int(&msg, id); | |
331 | buffer_put_cstring(&msg, path); | |
22e6c827 | 332 | send_msg(conn->fd_out, &msg); |
61e96248 | 333 | |
334 | buffer_clear(&msg); | |
335 | ||
22e6c827 | 336 | handle = get_handle(conn->fd_in, id, &handle_len); |
61e96248 | 337 | if (handle == NULL) |
338 | return(-1); | |
339 | ||
2e4fb373 | 340 | if (dir) { |
341 | ents = 0; | |
342 | *dir = xmalloc(sizeof(**dir)); | |
343 | (*dir)[0] = NULL; | |
344 | } | |
2e4fb373 | 345 | |
0e5de6f8 | 346 | for (; !interrupted;) { |
22e6c827 | 347 | id = expected_id = conn->msg_id++; |
61e96248 | 348 | |
9906a836 | 349 | debug3("Sending SSH2_FXP_READDIR I:%u", id); |
61e96248 | 350 | |
351 | buffer_clear(&msg); | |
352 | buffer_put_char(&msg, SSH2_FXP_READDIR); | |
353 | buffer_put_int(&msg, id); | |
354 | buffer_put_string(&msg, handle, handle_len); | |
22e6c827 | 355 | send_msg(conn->fd_out, &msg); |
61e96248 | 356 | |
357 | buffer_clear(&msg); | |
358 | ||
22e6c827 | 359 | get_msg(conn->fd_in, &msg); |
61e96248 | 360 | |
361 | type = buffer_get_char(&msg); | |
362 | id = buffer_get_int(&msg); | |
363 | ||
9906a836 | 364 | debug3("Received reply T:%u I:%u", type, id); |
61e96248 | 365 | |
366 | if (id != expected_id) | |
9906a836 | 367 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 368 | |
369 | if (type == SSH2_FXP_STATUS) { | |
370 | int status = buffer_get_int(&msg); | |
371 | ||
372 | debug3("Received SSH2_FXP_STATUS %d", status); | |
373 | ||
374 | if (status == SSH2_FX_EOF) { | |
375 | break; | |
376 | } else { | |
377 | error("Couldn't read directory: %s", | |
378 | fx2txt(status)); | |
22e6c827 | 379 | do_close(conn, handle, handle_len); |
3e2f2431 | 380 | xfree(handle); |
b655a207 | 381 | return(status); |
61e96248 | 382 | } |
383 | } else if (type != SSH2_FXP_NAME) | |
9906a836 | 384 | fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", |
61e96248 | 385 | SSH2_FXP_NAME, type); |
386 | ||
387 | count = buffer_get_int(&msg); | |
0426a3b4 | 388 | if (count == 0) |
389 | break; | |
390 | debug3("Received %d SSH2_FXP_NAME responses", count); | |
184eed6a | 391 | for (i = 0; i < count; i++) { |
61e96248 | 392 | char *filename, *longname; |
393 | Attrib *a; | |
394 | ||
395 | filename = buffer_get_string(&msg, NULL); | |
396 | longname = buffer_get_string(&msg, NULL); | |
397 | a = decode_attrib(&msg); | |
398 | ||
2e4fb373 | 399 | if (printflag) |
400 | printf("%s\n", longname); | |
401 | ||
402 | if (dir) { | |
c5d10563 | 403 | *dir = xrealloc(*dir, ents + 2, sizeof(**dir)); |
2e4fb373 | 404 | (*dir)[ents] = xmalloc(sizeof(***dir)); |
405 | (*dir)[ents]->filename = xstrdup(filename); | |
406 | (*dir)[ents]->longname = xstrdup(longname); | |
407 | memcpy(&(*dir)[ents]->a, a, sizeof(*a)); | |
408 | (*dir)[++ents] = NULL; | |
409 | } | |
61e96248 | 410 | |
411 | xfree(filename); | |
412 | xfree(longname); | |
413 | } | |
414 | } | |
415 | ||
416 | buffer_free(&msg); | |
22e6c827 | 417 | do_close(conn, handle, handle_len); |
61e96248 | 418 | xfree(handle); |
419 | ||
0e5de6f8 | 420 | /* Don't return partial matches on interrupt */ |
421 | if (interrupted && dir != NULL && *dir != NULL) { | |
422 | free_sftp_dirents(*dir); | |
423 | *dir = xmalloc(sizeof(**dir)); | |
424 | **dir = NULL; | |
425 | } | |
426 | ||
61e96248 | 427 | return(0); |
428 | } | |
429 | ||
2e4fb373 | 430 | int |
22e6c827 | 431 | do_readdir(struct sftp_conn *conn, char *path, SFTP_DIRENT ***dir) |
2e4fb373 | 432 | { |
22e6c827 | 433 | return(do_lsreaddir(conn, path, 0, dir)); |
2e4fb373 | 434 | } |
435 | ||
436 | void free_sftp_dirents(SFTP_DIRENT **s) | |
437 | { | |
438 | int i; | |
184eed6a | 439 | |
440 | for (i = 0; s[i]; i++) { | |
2e4fb373 | 441 | xfree(s[i]->filename); |
442 | xfree(s[i]->longname); | |
443 | xfree(s[i]); | |
444 | } | |
445 | xfree(s); | |
446 | } | |
447 | ||
61e96248 | 448 | int |
22e6c827 | 449 | do_rm(struct sftp_conn *conn, char *path) |
61e96248 | 450 | { |
451 | u_int status, id; | |
452 | ||
453 | debug2("Sending SSH2_FXP_REMOVE \"%s\"", path); | |
454 | ||
22e6c827 | 455 | id = conn->msg_id++; |
762715ce | 456 | send_string_request(conn->fd_out, id, SSH2_FXP_REMOVE, path, |
22e6c827 | 457 | strlen(path)); |
458 | status = get_status(conn->fd_in, id); | |
61e96248 | 459 | if (status != SSH2_FX_OK) |
460 | error("Couldn't delete file: %s", fx2txt(status)); | |
461 | return(status); | |
462 | } | |
463 | ||
464 | int | |
22e6c827 | 465 | do_mkdir(struct sftp_conn *conn, char *path, Attrib *a) |
61e96248 | 466 | { |
467 | u_int status, id; | |
468 | ||
22e6c827 | 469 | id = conn->msg_id++; |
470 | send_string_attrs_request(conn->fd_out, id, SSH2_FXP_MKDIR, path, | |
61e96248 | 471 | strlen(path), a); |
472 | ||
22e6c827 | 473 | status = get_status(conn->fd_in, id); |
61e96248 | 474 | if (status != SSH2_FX_OK) |
475 | error("Couldn't create directory: %s", fx2txt(status)); | |
476 | ||
477 | return(status); | |
478 | } | |
479 | ||
480 | int | |
22e6c827 | 481 | do_rmdir(struct sftp_conn *conn, char *path) |
61e96248 | 482 | { |
483 | u_int status, id; | |
484 | ||
22e6c827 | 485 | id = conn->msg_id++; |
486 | send_string_request(conn->fd_out, id, SSH2_FXP_RMDIR, path, | |
487 | strlen(path)); | |
61e96248 | 488 | |
22e6c827 | 489 | status = get_status(conn->fd_in, id); |
61e96248 | 490 | if (status != SSH2_FX_OK) |
491 | error("Couldn't remove directory: %s", fx2txt(status)); | |
492 | ||
493 | return(status); | |
494 | } | |
495 | ||
496 | Attrib * | |
22e6c827 | 497 | do_stat(struct sftp_conn *conn, char *path, int quiet) |
61e96248 | 498 | { |
499 | u_int id; | |
500 | ||
22e6c827 | 501 | id = conn->msg_id++; |
502 | ||
762715ce | 503 | send_string_request(conn->fd_out, id, |
504 | conn->version == 0 ? SSH2_FXP_STAT_VERSION_0 : SSH2_FXP_STAT, | |
22e6c827 | 505 | path, strlen(path)); |
506 | ||
507 | return(get_decode_stat(conn->fd_in, id, quiet)); | |
61e96248 | 508 | } |
509 | ||
510 | Attrib * | |
22e6c827 | 511 | do_lstat(struct sftp_conn *conn, char *path, int quiet) |
61e96248 | 512 | { |
513 | u_int id; | |
514 | ||
22e6c827 | 515 | if (conn->version == 0) { |
516 | if (quiet) | |
517 | debug("Server version does not support lstat operation"); | |
518 | else | |
bbe88b6d | 519 | logit("Server version does not support lstat operation"); |
9c74a24d | 520 | return(do_stat(conn, path, quiet)); |
22e6c827 | 521 | } |
522 | ||
523 | id = conn->msg_id++; | |
524 | send_string_request(conn->fd_out, id, SSH2_FXP_LSTAT, path, | |
525 | strlen(path)); | |
526 | ||
527 | return(get_decode_stat(conn->fd_in, id, quiet)); | |
61e96248 | 528 | } |
529 | ||
530 | Attrib * | |
22e6c827 | 531 | do_fstat(struct sftp_conn *conn, char *handle, u_int handle_len, int quiet) |
61e96248 | 532 | { |
533 | u_int id; | |
534 | ||
22e6c827 | 535 | id = conn->msg_id++; |
536 | send_string_request(conn->fd_out, id, SSH2_FXP_FSTAT, handle, | |
537 | handle_len); | |
538 | ||
539 | return(get_decode_stat(conn->fd_in, id, quiet)); | |
61e96248 | 540 | } |
541 | ||
542 | int | |
22e6c827 | 543 | do_setstat(struct sftp_conn *conn, char *path, Attrib *a) |
61e96248 | 544 | { |
545 | u_int status, id; | |
546 | ||
22e6c827 | 547 | id = conn->msg_id++; |
548 | send_string_attrs_request(conn->fd_out, id, SSH2_FXP_SETSTAT, path, | |
61e96248 | 549 | strlen(path), a); |
550 | ||
22e6c827 | 551 | status = get_status(conn->fd_in, id); |
61e96248 | 552 | if (status != SSH2_FX_OK) |
553 | error("Couldn't setstat on \"%s\": %s", path, | |
554 | fx2txt(status)); | |
555 | ||
556 | return(status); | |
557 | } | |
558 | ||
559 | int | |
22e6c827 | 560 | do_fsetstat(struct sftp_conn *conn, char *handle, u_int handle_len, |
61e96248 | 561 | Attrib *a) |
562 | { | |
563 | u_int status, id; | |
564 | ||
22e6c827 | 565 | id = conn->msg_id++; |
566 | send_string_attrs_request(conn->fd_out, id, SSH2_FXP_FSETSTAT, handle, | |
61e96248 | 567 | handle_len, a); |
568 | ||
22e6c827 | 569 | status = get_status(conn->fd_in, id); |
61e96248 | 570 | if (status != SSH2_FX_OK) |
571 | error("Couldn't fsetstat: %s", fx2txt(status)); | |
572 | ||
573 | return(status); | |
574 | } | |
575 | ||
576 | char * | |
22e6c827 | 577 | do_realpath(struct sftp_conn *conn, char *path) |
61e96248 | 578 | { |
579 | Buffer msg; | |
580 | u_int type, expected_id, count, id; | |
581 | char *filename, *longname; | |
582 | Attrib *a; | |
583 | ||
22e6c827 | 584 | expected_id = id = conn->msg_id++; |
585 | send_string_request(conn->fd_out, id, SSH2_FXP_REALPATH, path, | |
586 | strlen(path)); | |
61e96248 | 587 | |
588 | buffer_init(&msg); | |
589 | ||
22e6c827 | 590 | get_msg(conn->fd_in, &msg); |
61e96248 | 591 | type = buffer_get_char(&msg); |
592 | id = buffer_get_int(&msg); | |
593 | ||
594 | if (id != expected_id) | |
9906a836 | 595 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 596 | |
597 | if (type == SSH2_FXP_STATUS) { | |
598 | u_int status = buffer_get_int(&msg); | |
599 | ||
600 | error("Couldn't canonicalise: %s", fx2txt(status)); | |
601 | return(NULL); | |
602 | } else if (type != SSH2_FXP_NAME) | |
9906a836 | 603 | fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", |
61e96248 | 604 | SSH2_FXP_NAME, type); |
605 | ||
606 | count = buffer_get_int(&msg); | |
607 | if (count != 1) | |
608 | fatal("Got multiple names (%d) from SSH_FXP_REALPATH", count); | |
609 | ||
610 | filename = buffer_get_string(&msg, NULL); | |
611 | longname = buffer_get_string(&msg, NULL); | |
612 | a = decode_attrib(&msg); | |
613 | ||
614 | debug3("SSH_FXP_REALPATH %s -> %s", path, filename); | |
615 | ||
616 | xfree(longname); | |
617 | ||
618 | buffer_free(&msg); | |
619 | ||
620 | return(filename); | |
621 | } | |
622 | ||
623 | int | |
22e6c827 | 624 | do_rename(struct sftp_conn *conn, char *oldpath, char *newpath) |
61e96248 | 625 | { |
626 | Buffer msg; | |
627 | u_int status, id; | |
628 | ||
629 | buffer_init(&msg); | |
630 | ||
631 | /* Send rename request */ | |
22e6c827 | 632 | id = conn->msg_id++; |
61e96248 | 633 | buffer_put_char(&msg, SSH2_FXP_RENAME); |
634 | buffer_put_int(&msg, id); | |
635 | buffer_put_cstring(&msg, oldpath); | |
636 | buffer_put_cstring(&msg, newpath); | |
22e6c827 | 637 | send_msg(conn->fd_out, &msg); |
61e96248 | 638 | debug3("Sent message SSH2_FXP_RENAME \"%s\" -> \"%s\"", oldpath, |
639 | newpath); | |
640 | buffer_free(&msg); | |
641 | ||
22e6c827 | 642 | status = get_status(conn->fd_in, id); |
61e96248 | 643 | if (status != SSH2_FX_OK) |
22e6c827 | 644 | error("Couldn't rename file \"%s\" to \"%s\": %s", oldpath, |
645 | newpath, fx2txt(status)); | |
61e96248 | 646 | |
647 | return(status); | |
648 | } | |
649 | ||
3a7fe5ba | 650 | int |
22e6c827 | 651 | do_symlink(struct sftp_conn *conn, char *oldpath, char *newpath) |
3a7fe5ba | 652 | { |
653 | Buffer msg; | |
654 | u_int status, id; | |
655 | ||
22e6c827 | 656 | if (conn->version < 3) { |
657 | error("This server does not support the symlink operation"); | |
658 | return(SSH2_FX_OP_UNSUPPORTED); | |
659 | } | |
660 | ||
3a7fe5ba | 661 | buffer_init(&msg); |
662 | ||
b093b499 | 663 | /* Send symlink request */ |
22e6c827 | 664 | id = conn->msg_id++; |
3a7fe5ba | 665 | buffer_put_char(&msg, SSH2_FXP_SYMLINK); |
666 | buffer_put_int(&msg, id); | |
667 | buffer_put_cstring(&msg, oldpath); | |
668 | buffer_put_cstring(&msg, newpath); | |
22e6c827 | 669 | send_msg(conn->fd_out, &msg); |
3a7fe5ba | 670 | debug3("Sent message SSH2_FXP_SYMLINK \"%s\" -> \"%s\"", oldpath, |
671 | newpath); | |
672 | buffer_free(&msg); | |
673 | ||
22e6c827 | 674 | status = get_status(conn->fd_in, id); |
3a7fe5ba | 675 | if (status != SSH2_FX_OK) |
9db1a8e9 | 676 | error("Couldn't symlink file \"%s\" to \"%s\": %s", oldpath, |
22e6c827 | 677 | newpath, fx2txt(status)); |
3a7fe5ba | 678 | |
679 | return(status); | |
680 | } | |
681 | ||
682 | char * | |
22e6c827 | 683 | do_readlink(struct sftp_conn *conn, char *path) |
3a7fe5ba | 684 | { |
685 | Buffer msg; | |
686 | u_int type, expected_id, count, id; | |
687 | char *filename, *longname; | |
688 | Attrib *a; | |
689 | ||
22e6c827 | 690 | expected_id = id = conn->msg_id++; |
691 | send_string_request(conn->fd_out, id, SSH2_FXP_READLINK, path, | |
692 | strlen(path)); | |
3a7fe5ba | 693 | |
694 | buffer_init(&msg); | |
695 | ||
22e6c827 | 696 | get_msg(conn->fd_in, &msg); |
3a7fe5ba | 697 | type = buffer_get_char(&msg); |
698 | id = buffer_get_int(&msg); | |
699 | ||
700 | if (id != expected_id) | |
9906a836 | 701 | fatal("ID mismatch (%u != %u)", id, expected_id); |
3a7fe5ba | 702 | |
703 | if (type == SSH2_FXP_STATUS) { | |
704 | u_int status = buffer_get_int(&msg); | |
705 | ||
706 | error("Couldn't readlink: %s", fx2txt(status)); | |
707 | return(NULL); | |
708 | } else if (type != SSH2_FXP_NAME) | |
9906a836 | 709 | fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", |
3a7fe5ba | 710 | SSH2_FXP_NAME, type); |
711 | ||
712 | count = buffer_get_int(&msg); | |
713 | if (count != 1) | |
714 | fatal("Got multiple names (%d) from SSH_FXP_READLINK", count); | |
715 | ||
716 | filename = buffer_get_string(&msg, NULL); | |
717 | longname = buffer_get_string(&msg, NULL); | |
718 | a = decode_attrib(&msg); | |
719 | ||
720 | debug3("SSH_FXP_READLINK %s -> %s", path, filename); | |
721 | ||
722 | xfree(longname); | |
723 | ||
724 | buffer_free(&msg); | |
725 | ||
726 | return(filename); | |
727 | } | |
728 | ||
c25d3df7 | 729 | static void |
730 | send_read_request(int fd_out, u_int id, u_int64_t offset, u_int len, | |
731 | char *handle, u_int handle_len) | |
732 | { | |
733 | Buffer msg; | |
762715ce | 734 | |
c25d3df7 | 735 | buffer_init(&msg); |
736 | buffer_clear(&msg); | |
737 | buffer_put_char(&msg, SSH2_FXP_READ); | |
738 | buffer_put_int(&msg, id); | |
739 | buffer_put_string(&msg, handle, handle_len); | |
740 | buffer_put_int64(&msg, offset); | |
741 | buffer_put_int(&msg, len); | |
742 | send_msg(fd_out, &msg); | |
743 | buffer_free(&msg); | |
762715ce | 744 | } |
c25d3df7 | 745 | |
61e96248 | 746 | int |
22e6c827 | 747 | do_download(struct sftp_conn *conn, char *remote_path, char *local_path, |
748 | int pflag) | |
61e96248 | 749 | { |
61e96248 | 750 | Attrib junk, *a; |
c25d3df7 | 751 | Buffer msg; |
752 | char *handle; | |
a056dfa2 | 753 | int local_fd, status = 0, write_error; |
c25d3df7 | 754 | int read_error, write_errno; |
755 | u_int64_t offset, size; | |
2ceb8101 | 756 | u_int handle_len, mode, type, id, buflen, num_req, max_req; |
b65c3807 | 757 | off_t progress_counter; |
c25d3df7 | 758 | struct request { |
759 | u_int id; | |
760 | u_int len; | |
761 | u_int64_t offset; | |
762715ce | 762 | TAILQ_ENTRY(request) tq; |
c25d3df7 | 763 | }; |
764 | TAILQ_HEAD(reqhead, request) requests; | |
765 | struct request *req; | |
766 | ||
767 | TAILQ_INIT(&requests); | |
61e96248 | 768 | |
22e6c827 | 769 | a = do_stat(conn, remote_path, 0); |
61e96248 | 770 | if (a == NULL) |
771 | return(-1); | |
772 | ||
773 | /* XXX: should we preserve set[ug]id? */ | |
774 | if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) | |
bfd934b9 | 775 | mode = a->perm & 0777; |
61e96248 | 776 | else |
777 | mode = 0666; | |
778 | ||
d50d9b63 | 779 | if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) && |
538840a2 | 780 | (!S_ISREG(a->perm))) { |
781 | error("Cannot download non-regular file: %s", remote_path); | |
d50d9b63 | 782 | return(-1); |
783 | } | |
784 | ||
c25d3df7 | 785 | if (a->flags & SSH2_FILEXFER_ATTR_SIZE) |
786 | size = a->size; | |
787 | else | |
788 | size = 0; | |
789 | ||
22e6c827 | 790 | buflen = conn->transfer_buflen; |
61e96248 | 791 | buffer_init(&msg); |
792 | ||
793 | /* Send open request */ | |
22e6c827 | 794 | id = conn->msg_id++; |
61e96248 | 795 | buffer_put_char(&msg, SSH2_FXP_OPEN); |
796 | buffer_put_int(&msg, id); | |
797 | buffer_put_cstring(&msg, remote_path); | |
798 | buffer_put_int(&msg, SSH2_FXF_READ); | |
799 | attrib_clear(&junk); /* Send empty attributes */ | |
800 | encode_attrib(&msg, &junk); | |
22e6c827 | 801 | send_msg(conn->fd_out, &msg); |
9906a836 | 802 | debug3("Sent message SSH2_FXP_OPEN I:%u P:%s", id, remote_path); |
61e96248 | 803 | |
22e6c827 | 804 | handle = get_handle(conn->fd_in, id, &handle_len); |
61e96248 | 805 | if (handle == NULL) { |
806 | buffer_free(&msg); | |
61e96248 | 807 | return(-1); |
808 | } | |
809 | ||
aff51935 | 810 | local_fd = open(local_path, O_WRONLY | O_CREAT | O_TRUNC, |
bfd934b9 | 811 | mode | S_IWRITE); |
22e6c827 | 812 | if (local_fd == -1) { |
813 | error("Couldn't open local file \"%s\" for writing: %s", | |
814 | local_path, strerror(errno)); | |
f60ace9f | 815 | buffer_free(&msg); |
816 | xfree(handle); | |
22e6c827 | 817 | return(-1); |
818 | } | |
819 | ||
61e96248 | 820 | /* Read from remote and write to local */ |
c25d3df7 | 821 | write_error = read_error = write_errno = num_req = offset = 0; |
822 | max_req = 1; | |
b65c3807 | 823 | progress_counter = 0; |
824 | ||
213bab61 | 825 | if (showprogress && size != 0) |
826 | start_progress_meter(remote_path, size, &progress_counter); | |
b65c3807 | 827 | |
c25d3df7 | 828 | while (num_req > 0 || max_req > 0) { |
61e96248 | 829 | char *data; |
c25d3df7 | 830 | u_int len; |
61e96248 | 831 | |
0e5de6f8 | 832 | /* |
f2107e97 | 833 | * Simulate EOF on interrupt: stop sending new requests and |
0e5de6f8 | 834 | * allow outstanding requests to drain gracefully |
835 | */ | |
836 | if (interrupted) { | |
837 | if (num_req == 0) /* If we haven't started yet... */ | |
838 | break; | |
839 | max_req = 0; | |
840 | } | |
841 | ||
c25d3df7 | 842 | /* Send some more requests */ |
843 | while (num_req < max_req) { | |
762715ce | 844 | debug3("Request range %llu -> %llu (%d/%d)", |
8627f3e0 | 845 | (unsigned long long)offset, |
846 | (unsigned long long)offset + buflen - 1, | |
847 | num_req, max_req); | |
c25d3df7 | 848 | req = xmalloc(sizeof(*req)); |
22e6c827 | 849 | req->id = conn->msg_id++; |
c25d3df7 | 850 | req->len = buflen; |
851 | req->offset = offset; | |
852 | offset += buflen; | |
853 | num_req++; | |
854 | TAILQ_INSERT_TAIL(&requests, req, tq); | |
762715ce | 855 | send_read_request(conn->fd_out, req->id, req->offset, |
c25d3df7 | 856 | req->len, handle, handle_len); |
857 | } | |
61e96248 | 858 | |
859 | buffer_clear(&msg); | |
22e6c827 | 860 | get_msg(conn->fd_in, &msg); |
61e96248 | 861 | type = buffer_get_char(&msg); |
862 | id = buffer_get_int(&msg); | |
9906a836 | 863 | debug3("Received reply T:%u I:%u R:%d", type, id, max_req); |
c25d3df7 | 864 | |
865 | /* Find the request in our queue */ | |
f8cc7664 | 866 | for (req = TAILQ_FIRST(&requests); |
c25d3df7 | 867 | req != NULL && req->id != id; |
868 | req = TAILQ_NEXT(req, tq)) | |
869 | ; | |
870 | if (req == NULL) | |
871 | fatal("Unexpected reply %u", id); | |
872 | ||
873 | switch (type) { | |
874 | case SSH2_FXP_STATUS: | |
0426a3b4 | 875 | status = buffer_get_int(&msg); |
c25d3df7 | 876 | if (status != SSH2_FX_EOF) |
877 | read_error = 1; | |
878 | max_req = 0; | |
879 | TAILQ_REMOVE(&requests, req, tq); | |
880 | xfree(req); | |
881 | num_req--; | |
882 | break; | |
883 | case SSH2_FXP_DATA: | |
884 | data = buffer_get_string(&msg, &len); | |
bfa7f960 | 885 | debug3("Received data %llu -> %llu", |
762715ce | 886 | (unsigned long long)req->offset, |
bfa7f960 | 887 | (unsigned long long)req->offset + len - 1); |
c25d3df7 | 888 | if (len > req->len) |
889 | fatal("Received more data than asked for " | |
b77a87e5 | 890 | "%u > %u", len, req->len); |
c25d3df7 | 891 | if ((lseek(local_fd, req->offset, SEEK_SET) == -1 || |
dc54438a | 892 | atomicio(vwrite, local_fd, data, len) != len) && |
c25d3df7 | 893 | !write_error) { |
894 | write_errno = errno; | |
895 | write_error = 1; | |
896 | max_req = 0; | |
897 | } | |
b65c3807 | 898 | progress_counter += len; |
c25d3df7 | 899 | xfree(data); |
61e96248 | 900 | |
c25d3df7 | 901 | if (len == req->len) { |
902 | TAILQ_REMOVE(&requests, req, tq); | |
903 | xfree(req); | |
904 | num_req--; | |
905 | } else { | |
906 | /* Resend the request for the missing data */ | |
907 | debug3("Short data block, re-requesting " | |
bfa7f960 | 908 | "%llu -> %llu (%2d)", |
762715ce | 909 | (unsigned long long)req->offset + len, |
5fc7dbc9 | 910 | (unsigned long long)req->offset + |
911 | req->len - 1, num_req); | |
22e6c827 | 912 | req->id = conn->msg_id++; |
c25d3df7 | 913 | req->len -= len; |
914 | req->offset += len; | |
762715ce | 915 | send_read_request(conn->fd_out, req->id, |
22e6c827 | 916 | req->offset, req->len, handle, handle_len); |
c25d3df7 | 917 | /* Reduce the request size */ |
918 | if (len < buflen) | |
919 | buflen = MAX(MIN_READ_SIZE, len); | |
920 | } | |
921 | if (max_req > 0) { /* max_req = 0 iff EOF received */ | |
922 | if (size > 0 && offset > size) { | |
923 | /* Only one request at a time | |
924 | * after the expected EOF */ | |
925 | debug3("Finish at %llu (%2d)", | |
bfa7f960 | 926 | (unsigned long long)offset, |
927 | num_req); | |
c25d3df7 | 928 | max_req = 1; |
0e5de6f8 | 929 | } else if (max_req <= conn->num_requests) { |
c25d3df7 | 930 | ++max_req; |
931 | } | |
61e96248 | 932 | } |
c25d3df7 | 933 | break; |
934 | default: | |
9906a836 | 935 | fatal("Expected SSH2_FXP_DATA(%u) packet, got %u", |
61e96248 | 936 | SSH2_FXP_DATA, type); |
937 | } | |
61e96248 | 938 | } |
61e96248 | 939 | |
b65c3807 | 940 | if (showprogress && size) |
941 | stop_progress_meter(); | |
942 | ||
c25d3df7 | 943 | /* Sanity check */ |
944 | if (TAILQ_FIRST(&requests) != NULL) | |
945 | fatal("Transfer complete, but requests still in queue"); | |
946 | ||
947 | if (read_error) { | |
762715ce | 948 | error("Couldn't read from remote file \"%s\" : %s", |
22e6c827 | 949 | remote_path, fx2txt(status)); |
950 | do_close(conn, handle, handle_len); | |
c25d3df7 | 951 | } else if (write_error) { |
22e6c827 | 952 | error("Couldn't write to \"%s\": %s", local_path, |
953 | strerror(write_errno)); | |
954 | status = -1; | |
955 | do_close(conn, handle, handle_len); | |
c25d3df7 | 956 | } else { |
22e6c827 | 957 | status = do_close(conn, handle, handle_len); |
c25d3df7 | 958 | |
959 | /* Override umask and utimes if asked */ | |
663fd560 | 960 | #ifdef HAVE_FCHMOD |
c25d3df7 | 961 | if (pflag && fchmod(local_fd, mode) == -1) |
aff51935 | 962 | #else |
c25d3df7 | 963 | if (pflag && chmod(local_path, mode) == -1) |
663fd560 | 964 | #endif /* HAVE_FCHMOD */ |
c25d3df7 | 965 | error("Couldn't set mode on \"%s\": %s", local_path, |
b77a87e5 | 966 | strerror(errno)); |
c25d3df7 | 967 | if (pflag && (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME)) { |
968 | struct timeval tv[2]; | |
969 | tv[0].tv_sec = a->atime; | |
970 | tv[1].tv_sec = a->mtime; | |
971 | tv[0].tv_usec = tv[1].tv_usec = 0; | |
972 | if (utimes(local_path, tv) == -1) | |
973 | error("Can't set times on \"%s\": %s", | |
b77a87e5 | 974 | local_path, strerror(errno)); |
c25d3df7 | 975 | } |
58c54a79 | 976 | } |
0426a3b4 | 977 | close(local_fd); |
978 | buffer_free(&msg); | |
979 | xfree(handle); | |
22e6c827 | 980 | |
981 | return(status); | |
61e96248 | 982 | } |
983 | ||
984 | int | |
22e6c827 | 985 | do_upload(struct sftp_conn *conn, char *local_path, char *remote_path, |
986 | int pflag) | |
61e96248 | 987 | { |
375f867e | 988 | int local_fd, status; |
b2bab059 | 989 | u_int handle_len, id, type; |
61e96248 | 990 | u_int64_t offset; |
375f867e | 991 | char *handle, *data; |
61e96248 | 992 | Buffer msg; |
993 | struct stat sb; | |
994 | Attrib a; | |
c25d3df7 | 995 | u_int32_t startid; |
996 | u_int32_t ackid; | |
b2bab059 | 997 | struct outstanding_ack { |
998 | u_int id; | |
999 | u_int len; | |
1000 | u_int64_t offset; | |
762715ce | 1001 | TAILQ_ENTRY(outstanding_ack) tq; |
b2bab059 | 1002 | }; |
1003 | TAILQ_HEAD(ackhead, outstanding_ack) acks; | |
6e007f08 | 1004 | struct outstanding_ack *ack = NULL; |
b2bab059 | 1005 | |
1006 | TAILQ_INIT(&acks); | |
61e96248 | 1007 | |
1008 | if ((local_fd = open(local_path, O_RDONLY, 0)) == -1) { | |
1009 | error("Couldn't open local file \"%s\" for reading: %s", | |
1010 | local_path, strerror(errno)); | |
1011 | return(-1); | |
1012 | } | |
1013 | if (fstat(local_fd, &sb) == -1) { | |
1014 | error("Couldn't fstat local file \"%s\": %s", | |
1015 | local_path, strerror(errno)); | |
1016 | close(local_fd); | |
1017 | return(-1); | |
1018 | } | |
538840a2 | 1019 | if (!S_ISREG(sb.st_mode)) { |
1020 | error("%s is not a regular file", local_path); | |
1021 | close(local_fd); | |
1022 | return(-1); | |
1023 | } | |
61e96248 | 1024 | stat_to_attrib(&sb, &a); |
1025 | ||
1026 | a.flags &= ~SSH2_FILEXFER_ATTR_SIZE; | |
1027 | a.flags &= ~SSH2_FILEXFER_ATTR_UIDGID; | |
1028 | a.perm &= 0777; | |
1029 | if (!pflag) | |
1030 | a.flags &= ~SSH2_FILEXFER_ATTR_ACMODTIME; | |
1031 | ||
1032 | buffer_init(&msg); | |
1033 | ||
1034 | /* Send open request */ | |
22e6c827 | 1035 | id = conn->msg_id++; |
61e96248 | 1036 | buffer_put_char(&msg, SSH2_FXP_OPEN); |
1037 | buffer_put_int(&msg, id); | |
1038 | buffer_put_cstring(&msg, remote_path); | |
1039 | buffer_put_int(&msg, SSH2_FXF_WRITE|SSH2_FXF_CREAT|SSH2_FXF_TRUNC); | |
1040 | encode_attrib(&msg, &a); | |
22e6c827 | 1041 | send_msg(conn->fd_out, &msg); |
9906a836 | 1042 | debug3("Sent message SSH2_FXP_OPEN I:%u P:%s", id, remote_path); |
61e96248 | 1043 | |
1044 | buffer_clear(&msg); | |
1045 | ||
22e6c827 | 1046 | handle = get_handle(conn->fd_in, id, &handle_len); |
61e96248 | 1047 | if (handle == NULL) { |
1048 | close(local_fd); | |
1049 | buffer_free(&msg); | |
1050 | return(-1); | |
1051 | } | |
1052 | ||
c25d3df7 | 1053 | startid = ackid = id + 1; |
22e6c827 | 1054 | data = xmalloc(conn->transfer_buflen); |
375f867e | 1055 | |
61e96248 | 1056 | /* Read from local and write to remote */ |
1057 | offset = 0; | |
b65c3807 | 1058 | if (showprogress) |
1059 | start_progress_meter(local_path, sb.st_size, &offset); | |
b65c3807 | 1060 | |
184eed6a | 1061 | for (;;) { |
61e96248 | 1062 | int len; |
61e96248 | 1063 | |
1064 | /* | |
f2107e97 | 1065 | * Can't use atomicio here because it returns 0 on EOF, |
0e5de6f8 | 1066 | * thus losing the last block of the file. |
f2107e97 | 1067 | * Simulate an EOF on interrupt, allowing ACKs from the |
0e5de6f8 | 1068 | * server to drain. |
61e96248 | 1069 | */ |
0e5de6f8 | 1070 | if (interrupted) |
1071 | len = 0; | |
1072 | else do | |
22e6c827 | 1073 | len = read(local_fd, data, conn->transfer_buflen); |
61e96248 | 1074 | while ((len == -1) && (errno == EINTR || errno == EAGAIN)); |
1075 | ||
1076 | if (len == -1) | |
1077 | fatal("Couldn't read from \"%s\": %s", local_path, | |
1078 | strerror(errno)); | |
c25d3df7 | 1079 | |
1080 | if (len != 0) { | |
b2bab059 | 1081 | ack = xmalloc(sizeof(*ack)); |
1082 | ack->id = ++id; | |
1083 | ack->offset = offset; | |
1084 | ack->len = len; | |
1085 | TAILQ_INSERT_TAIL(&acks, ack, tq); | |
1086 | ||
c25d3df7 | 1087 | buffer_clear(&msg); |
1088 | buffer_put_char(&msg, SSH2_FXP_WRITE); | |
b2bab059 | 1089 | buffer_put_int(&msg, ack->id); |
c25d3df7 | 1090 | buffer_put_string(&msg, handle, handle_len); |
1091 | buffer_put_int64(&msg, offset); | |
1092 | buffer_put_string(&msg, data, len); | |
22e6c827 | 1093 | send_msg(conn->fd_out, &msg); |
9906a836 | 1094 | debug3("Sent message SSH2_FXP_WRITE I:%u O:%llu S:%u", |
b77a87e5 | 1095 | id, (unsigned long long)offset, len); |
b2bab059 | 1096 | } else if (TAILQ_FIRST(&acks) == NULL) |
61e96248 | 1097 | break; |
1098 | ||
b2bab059 | 1099 | if (ack == NULL) |
1100 | fatal("Unexpected ACK %u", id); | |
1101 | ||
762715ce | 1102 | if (id == startid || len == 0 || |
22e6c827 | 1103 | id - ackid >= conn->num_requests) { |
875ec275 | 1104 | u_int r_id; |
af2b3cd9 | 1105 | |
b2bab059 | 1106 | buffer_clear(&msg); |
22e6c827 | 1107 | get_msg(conn->fd_in, &msg); |
b2bab059 | 1108 | type = buffer_get_char(&msg); |
af2b3cd9 | 1109 | r_id = buffer_get_int(&msg); |
b2bab059 | 1110 | |
1111 | if (type != SSH2_FXP_STATUS) | |
1112 | fatal("Expected SSH2_FXP_STATUS(%d) packet, " | |
1113 | "got %d", SSH2_FXP_STATUS, type); | |
1114 | ||
1115 | status = buffer_get_int(&msg); | |
1116 | debug3("SSH2_FXP_STATUS %d", status); | |
1117 | ||
1118 | /* Find the request in our queue */ | |
f8cc7664 | 1119 | for (ack = TAILQ_FIRST(&acks); |
af2b3cd9 | 1120 | ack != NULL && ack->id != r_id; |
b2bab059 | 1121 | ack = TAILQ_NEXT(ack, tq)) |
1122 | ; | |
1123 | if (ack == NULL) | |
9906a836 | 1124 | fatal("Can't find request for ID %u", r_id); |
b2bab059 | 1125 | TAILQ_REMOVE(&acks, ack, tq); |
1126 | ||
c25d3df7 | 1127 | if (status != SSH2_FX_OK) { |
1128 | error("Couldn't write to remote file \"%s\": %s", | |
b77a87e5 | 1129 | remote_path, fx2txt(status)); |
22e6c827 | 1130 | do_close(conn, handle, handle_len); |
c25d3df7 | 1131 | close(local_fd); |
3e2f2431 | 1132 | xfree(data); |
1133 | xfree(ack); | |
c25d3df7 | 1134 | goto done; |
1135 | } | |
9906a836 | 1136 | debug3("In write loop, ack for %u %u bytes at %llu", |
4e2e5cfd | 1137 | ack->id, ack->len, (unsigned long long)ack->offset); |
c25d3df7 | 1138 | ++ackid; |
30e37ee6 | 1139 | xfree(ack); |
61e96248 | 1140 | } |
61e96248 | 1141 | offset += len; |
1142 | } | |
b65c3807 | 1143 | if (showprogress) |
1144 | stop_progress_meter(); | |
375f867e | 1145 | xfree(data); |
61e96248 | 1146 | |
1147 | if (close(local_fd) == -1) { | |
1148 | error("Couldn't close local file \"%s\": %s", local_path, | |
1149 | strerror(errno)); | |
22e6c827 | 1150 | do_close(conn, handle, handle_len); |
0426a3b4 | 1151 | status = -1; |
1152 | goto done; | |
61e96248 | 1153 | } |
1154 | ||
58c54a79 | 1155 | /* Override umask and utimes if asked */ |
1156 | if (pflag) | |
22e6c827 | 1157 | do_fsetstat(conn, handle, handle_len, &a); |
58c54a79 | 1158 | |
22e6c827 | 1159 | status = do_close(conn, handle, handle_len); |
0426a3b4 | 1160 | |
1161 | done: | |
1162 | xfree(handle); | |
1163 | buffer_free(&msg); | |
22e6c827 | 1164 | return(status); |
61e96248 | 1165 | } |