Annotation of src/usr.bin/ssh/sftp-client.c, Revision 1.83
1.83 ! djm 1: /* $OpenBSD: sftp-client.c,v 1.82 2008/04/18 12:32:11 djm Exp $ */
1.1 djm 2: /*
1.46 djm 3: * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
1.1 djm 4: *
1.46 djm 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.
1.1 djm 8: *
1.46 djm 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.
1.1 djm 16: */
17:
18: /* XXX: memleaks */
19: /* XXX: signed vs unsigned */
1.23 djm 20: /* XXX: remove all logging, only return status codes */
1.1 djm 21: /* XXX: copy between two remote sites */
22:
1.74 deraadt 23: #include <sys/types.h>
1.21 djm 24: #include <sys/queue.h>
1.60 stevesk 25: #include <sys/stat.h>
1.71 stevesk 26: #include <sys/time.h>
1.72 stevesk 27: #include <sys/param.h>
1.82 djm 28: #include <sys/statvfs.h>
1.74 deraadt 29: #include <sys/uio.h>
1.66 stevesk 30:
1.67 stevesk 31: #include <errno.h>
1.66 stevesk 32: #include <fcntl.h>
1.70 stevesk 33: #include <signal.h>
1.73 stevesk 34: #include <stdio.h>
1.69 stevesk 35: #include <string.h>
1.68 stevesk 36: #include <unistd.h>
1.74 deraadt 37: #include <stdarg.h>
1.1 djm 38:
1.74 deraadt 39: #include "xmalloc.h"
1.1 djm 40: #include "buffer.h"
41: #include "log.h"
42: #include "atomicio.h"
1.39 fgsch 43: #include "progressmeter.h"
1.64 djm 44: #include "misc.h"
1.1 djm 45:
46: #include "sftp.h"
47: #include "sftp-common.h"
48: #include "sftp-client.h"
49:
1.49 djm 50: extern volatile sig_atomic_t interrupted;
1.39 fgsch 51: extern int showprogress;
52:
1.59 david 53: /* Minimum amount of data to read at a time */
1.21 djm 54: #define MIN_READ_SIZE 512
55:
1.23 djm 56: struct sftp_conn {
57: int fd_in;
58: int fd_out;
59: u_int transfer_buflen;
60: u_int num_requests;
61: u_int version;
62: u_int msg_id;
1.82 djm 63: #define SFTP_EXT_POSIX_RENAME 0x00000001
64: #define SFTP_EXT_STATVFS 0x00000002
65: #define SFTP_EXT_FSTATVFS 0x00000004
1.81 djm 66: u_int exts;
1.23 djm 67: };
1.4 djm 68:
1.17 itojun 69: static void
1.1 djm 70: send_msg(int fd, Buffer *m)
71: {
1.40 djm 72: u_char mlen[4];
1.65 djm 73: struct iovec iov[2];
1.40 djm 74:
1.58 djm 75: if (buffer_len(m) > SFTP_MAX_MSG_LENGTH)
1.40 djm 76: fatal("Outbound message too long %u", buffer_len(m));
77:
78: /* Send length first */
1.64 djm 79: put_u32(mlen, buffer_len(m));
1.65 djm 80: iov[0].iov_base = mlen;
81: iov[0].iov_len = sizeof(mlen);
82: iov[1].iov_base = buffer_ptr(m);
83: iov[1].iov_len = buffer_len(m);
1.74 deraadt 84:
1.65 djm 85: if (atomiciov(writev, fd, iov, 2) != buffer_len(m) + sizeof(mlen))
1.1 djm 86: fatal("Couldn't send packet: %s", strerror(errno));
87:
1.40 djm 88: buffer_clear(m);
1.1 djm 89: }
90:
1.17 itojun 91: static void
1.1 djm 92: get_msg(int fd, Buffer *m)
93: {
1.40 djm 94: u_int msg_len;
1.1 djm 95:
1.40 djm 96: buffer_append_space(m, 4);
1.54 avsm 97: if (atomicio(read, fd, buffer_ptr(m), 4) != 4) {
98: if (errno == EPIPE)
99: fatal("Connection closed");
100: else
101: fatal("Couldn't read packet: %s", strerror(errno));
102: }
1.1 djm 103:
1.40 djm 104: msg_len = buffer_get_int(m);
1.58 djm 105: if (msg_len > SFTP_MAX_MSG_LENGTH)
1.33 deraadt 106: fatal("Received message too long %u", msg_len);
1.1 djm 107:
1.40 djm 108: buffer_append_space(m, msg_len);
1.54 avsm 109: if (atomicio(read, fd, buffer_ptr(m), msg_len) != msg_len) {
110: if (errno == EPIPE)
111: fatal("Connection closed");
112: else
113: fatal("Read packet: %s", strerror(errno));
114: }
1.1 djm 115: }
116:
1.17 itojun 117: static void
1.1 djm 118: send_string_request(int fd, u_int id, u_int code, char *s,
119: u_int len)
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: send_msg(fd, &msg);
1.33 deraadt 128: debug3("Sent message fd %d T:%u I:%u", fd, code, id);
1.1 djm 129: buffer_free(&msg);
130: }
131:
1.17 itojun 132: static void
1.1 djm 133: send_string_attrs_request(int fd, u_int id, u_int code, char *s,
134: u_int len, Attrib *a)
135: {
136: Buffer msg;
137:
138: buffer_init(&msg);
139: buffer_put_char(&msg, code);
140: buffer_put_int(&msg, id);
141: buffer_put_string(&msg, s, len);
142: encode_attrib(&msg, a);
143: send_msg(fd, &msg);
1.33 deraadt 144: debug3("Sent message fd %d T:%u I:%u", fd, code, id);
1.1 djm 145: buffer_free(&msg);
146: }
147:
1.17 itojun 148: static u_int
1.33 deraadt 149: get_status(int fd, u_int expected_id)
1.1 djm 150: {
151: Buffer msg;
152: u_int type, id, status;
153:
154: buffer_init(&msg);
155: get_msg(fd, &msg);
156: type = buffer_get_char(&msg);
157: id = buffer_get_int(&msg);
158:
159: if (id != expected_id)
1.33 deraadt 160: fatal("ID mismatch (%u != %u)", id, expected_id);
1.1 djm 161: if (type != SSH2_FXP_STATUS)
1.33 deraadt 162: fatal("Expected SSH2_FXP_STATUS(%u) packet, got %u",
1.1 djm 163: SSH2_FXP_STATUS, type);
164:
165: status = buffer_get_int(&msg);
166: buffer_free(&msg);
167:
1.33 deraadt 168: debug3("SSH2_FXP_STATUS %u", status);
1.1 djm 169:
170: return(status);
171: }
172:
1.17 itojun 173: static char *
1.1 djm 174: get_handle(int fd, u_int expected_id, u_int *len)
175: {
176: Buffer msg;
177: u_int type, id;
178: char *handle;
179:
180: buffer_init(&msg);
181: get_msg(fd, &msg);
182: type = buffer_get_char(&msg);
183: id = buffer_get_int(&msg);
184:
185: if (id != expected_id)
1.33 deraadt 186: fatal("ID mismatch (%u != %u)", id, expected_id);
1.1 djm 187: if (type == SSH2_FXP_STATUS) {
188: int status = buffer_get_int(&msg);
189:
190: error("Couldn't get handle: %s", fx2txt(status));
1.52 markus 191: buffer_free(&msg);
1.1 djm 192: return(NULL);
193: } else if (type != SSH2_FXP_HANDLE)
1.33 deraadt 194: fatal("Expected SSH2_FXP_HANDLE(%u) packet, got %u",
1.1 djm 195: SSH2_FXP_HANDLE, type);
196:
197: handle = buffer_get_string(&msg, len);
198: buffer_free(&msg);
199:
200: return(handle);
201: }
202:
1.17 itojun 203: static Attrib *
1.14 djm 204: get_decode_stat(int fd, u_int expected_id, int quiet)
1.1 djm 205: {
206: Buffer msg;
207: u_int type, id;
208: Attrib *a;
209:
210: buffer_init(&msg);
211: get_msg(fd, &msg);
212:
213: type = buffer_get_char(&msg);
214: id = buffer_get_int(&msg);
215:
1.33 deraadt 216: debug3("Received stat reply T:%u I:%u", type, id);
1.1 djm 217: if (id != expected_id)
1.33 deraadt 218: fatal("ID mismatch (%u != %u)", id, expected_id);
1.1 djm 219: if (type == SSH2_FXP_STATUS) {
220: int status = buffer_get_int(&msg);
221:
1.14 djm 222: if (quiet)
223: debug("Couldn't stat remote file: %s", fx2txt(status));
224: else
225: error("Couldn't stat remote file: %s", fx2txt(status));
1.52 markus 226: buffer_free(&msg);
1.1 djm 227: return(NULL);
228: } else if (type != SSH2_FXP_ATTRS) {
1.33 deraadt 229: fatal("Expected SSH2_FXP_ATTRS(%u) packet, got %u",
1.1 djm 230: SSH2_FXP_ATTRS, type);
231: }
232: a = decode_attrib(&msg);
233: buffer_free(&msg);
234:
235: return(a);
236: }
237:
1.82 djm 238: static int
239: get_decode_statvfs(int fd, struct statvfs *st, u_int expected_id, int quiet)
240: {
241: Buffer msg;
242: u_int type, id, flag;
243:
244: buffer_init(&msg);
245: get_msg(fd, &msg);
246:
247: type = buffer_get_char(&msg);
248: id = buffer_get_int(&msg);
249:
250: debug3("Received statvfs reply T:%u I:%u", type, id);
251: if (id != expected_id)
252: fatal("ID mismatch (%u != %u)", id, expected_id);
253: if (type == SSH2_FXP_STATUS) {
254: int status = buffer_get_int(&msg);
255:
256: if (quiet)
257: debug("Couldn't statvfs: %s", fx2txt(status));
258: else
259: error("Couldn't statvfs: %s", fx2txt(status));
260: buffer_free(&msg);
261: return -1;
262: } else if (type != SSH2_FXP_EXTENDED_REPLY) {
263: fatal("Expected SSH2_FXP_EXTENDED_REPLY(%u) packet, got %u",
264: SSH2_FXP_EXTENDED_REPLY, type);
265: }
266:
267: bzero(st, sizeof(*st));
268: st->f_bsize = buffer_get_int(&msg);
269: st->f_frsize = buffer_get_int(&msg);
270: st->f_blocks = buffer_get_int64(&msg);
271: st->f_bfree = buffer_get_int64(&msg);
272: st->f_bavail = buffer_get_int64(&msg);
273: st->f_files = buffer_get_int64(&msg);
274: st->f_ffree = buffer_get_int64(&msg);
275: st->f_favail = buffer_get_int64(&msg);
1.83 ! djm 276: st->f_fsid = buffer_get_int64(&msg);
1.82 djm 277: flag = buffer_get_int(&msg);
278: st->f_namemax = buffer_get_int(&msg);
279:
280: st->f_flag = (flag & SSH2_FXE_STATVFS_ST_RDONLY) ? ST_RDONLY : 0;
281: st->f_flag |= (flag & SSH2_FXE_STATVFS_ST_NOSUID) ? ST_NOSUID : 0;
282:
283: buffer_free(&msg);
284:
285: return 0;
286: }
287:
1.23 djm 288: struct sftp_conn *
289: do_init(int fd_in, int fd_out, u_int transfer_buflen, u_int num_requests)
1.1 djm 290: {
1.81 djm 291: u_int type, exts = 0;
1.33 deraadt 292: int version;
1.1 djm 293: Buffer msg;
1.23 djm 294: struct sftp_conn *ret;
1.1 djm 295:
296: buffer_init(&msg);
297: buffer_put_char(&msg, SSH2_FXP_INIT);
298: buffer_put_int(&msg, SSH2_FILEXFER_VERSION);
299: send_msg(fd_out, &msg);
300:
301: buffer_clear(&msg);
302:
303: get_msg(fd_in, &msg);
304:
1.3 stevesk 305: /* Expecting a VERSION reply */
1.1 djm 306: if ((type = buffer_get_char(&msg)) != SSH2_FXP_VERSION) {
1.33 deraadt 307: error("Invalid packet back from SSH2_FXP_INIT (type %u)",
1.1 djm 308: type);
309: buffer_free(&msg);
1.23 djm 310: return(NULL);
1.1 djm 311: }
312: version = buffer_get_int(&msg);
313:
314: debug2("Remote version: %d", version);
315:
316: /* Check for extensions */
317: while (buffer_len(&msg) > 0) {
318: char *name = buffer_get_string(&msg, NULL);
319: char *value = buffer_get_string(&msg, NULL);
320:
321: debug2("Init extension: \"%s\"", name);
1.82 djm 322: if (strcmp(name, "posix-rename@openssh.com") == 0 &&
323: strcmp(value, "1") == 0)
1.81 djm 324: exts |= SFTP_EXT_POSIX_RENAME;
1.82 djm 325: if (strcmp(name, "statvfs@openssh.com") == 0 &&
1.83 ! djm 326: strcmp(value, "2") == 0)
1.82 djm 327: exts |= SFTP_EXT_STATVFS;
328: if (strcmp(name, "fstatvfs@openssh.com") == 0 &&
1.83 ! djm 329: strcmp(value, "2") == 0)
1.82 djm 330: exts |= SFTP_EXT_FSTATVFS;
1.1 djm 331: xfree(name);
332: xfree(value);
333: }
334:
335: buffer_free(&msg);
1.11 djm 336:
1.23 djm 337: ret = xmalloc(sizeof(*ret));
338: ret->fd_in = fd_in;
339: ret->fd_out = fd_out;
340: ret->transfer_buflen = transfer_buflen;
341: ret->num_requests = num_requests;
342: ret->version = version;
343: ret->msg_id = 1;
1.81 djm 344: ret->exts = exts;
1.23 djm 345:
346: /* Some filexfer v.0 servers don't support large packets */
347: if (version == 0)
1.29 markus 348: ret->transfer_buflen = MIN(ret->transfer_buflen, 20480);
1.23 djm 349:
350: return(ret);
351: }
352:
353: u_int
354: sftp_proto_version(struct sftp_conn *conn)
355: {
356: return(conn->version);
1.1 djm 357: }
358:
359: int
1.23 djm 360: do_close(struct sftp_conn *conn, char *handle, u_int handle_len)
1.1 djm 361: {
362: u_int id, status;
363: Buffer msg;
364:
365: buffer_init(&msg);
366:
1.23 djm 367: id = conn->msg_id++;
1.1 djm 368: buffer_put_char(&msg, SSH2_FXP_CLOSE);
369: buffer_put_int(&msg, id);
370: buffer_put_string(&msg, handle, handle_len);
1.23 djm 371: send_msg(conn->fd_out, &msg);
1.33 deraadt 372: debug3("Sent message SSH2_FXP_CLOSE I:%u", id);
1.1 djm 373:
1.23 djm 374: status = get_status(conn->fd_in, id);
1.1 djm 375: if (status != SSH2_FX_OK)
376: error("Couldn't close file: %s", fx2txt(status));
377:
378: buffer_free(&msg);
379:
380: return(status);
381: }
382:
1.12 djm 383:
1.17 itojun 384: static int
1.23 djm 385: do_lsreaddir(struct sftp_conn *conn, char *path, int printflag,
1.12 djm 386: SFTP_DIRENT ***dir)
1.1 djm 387: {
388: Buffer msg;
1.55 djm 389: u_int count, type, id, handle_len, i, expected_id, ents = 0;
1.1 djm 390: char *handle;
391:
1.23 djm 392: id = conn->msg_id++;
1.1 djm 393:
394: buffer_init(&msg);
395: buffer_put_char(&msg, SSH2_FXP_OPENDIR);
396: buffer_put_int(&msg, id);
397: buffer_put_cstring(&msg, path);
1.23 djm 398: send_msg(conn->fd_out, &msg);
1.1 djm 399:
400: buffer_clear(&msg);
401:
1.23 djm 402: handle = get_handle(conn->fd_in, id, &handle_len);
1.1 djm 403: if (handle == NULL)
404: return(-1);
405:
1.12 djm 406: if (dir) {
407: ents = 0;
408: *dir = xmalloc(sizeof(**dir));
409: (*dir)[0] = NULL;
410: }
411:
1.49 djm 412: for (; !interrupted;) {
1.23 djm 413: id = expected_id = conn->msg_id++;
1.1 djm 414:
1.33 deraadt 415: debug3("Sending SSH2_FXP_READDIR I:%u", id);
1.1 djm 416:
417: buffer_clear(&msg);
418: buffer_put_char(&msg, SSH2_FXP_READDIR);
419: buffer_put_int(&msg, id);
420: buffer_put_string(&msg, handle, handle_len);
1.23 djm 421: send_msg(conn->fd_out, &msg);
1.1 djm 422:
423: buffer_clear(&msg);
424:
1.23 djm 425: get_msg(conn->fd_in, &msg);
1.1 djm 426:
427: type = buffer_get_char(&msg);
428: id = buffer_get_int(&msg);
429:
1.33 deraadt 430: debug3("Received reply T:%u I:%u", type, id);
1.1 djm 431:
432: if (id != expected_id)
1.33 deraadt 433: fatal("ID mismatch (%u != %u)", id, expected_id);
1.1 djm 434:
435: if (type == SSH2_FXP_STATUS) {
436: int status = buffer_get_int(&msg);
437:
438: debug3("Received SSH2_FXP_STATUS %d", status);
439:
440: if (status == SSH2_FX_EOF) {
441: break;
442: } else {
443: error("Couldn't read directory: %s",
444: fx2txt(status));
1.23 djm 445: do_close(conn, handle, handle_len);
1.42 markus 446: xfree(handle);
1.9 djm 447: return(status);
1.1 djm 448: }
449: } else if (type != SSH2_FXP_NAME)
1.33 deraadt 450: fatal("Expected SSH2_FXP_NAME(%u) packet, got %u",
1.1 djm 451: SSH2_FXP_NAME, type);
452:
453: count = buffer_get_int(&msg);
1.7 markus 454: if (count == 0)
455: break;
1.8 stevesk 456: debug3("Received %d SSH2_FXP_NAME responses", count);
1.19 deraadt 457: for (i = 0; i < count; i++) {
1.1 djm 458: char *filename, *longname;
459: Attrib *a;
460:
461: filename = buffer_get_string(&msg, NULL);
462: longname = buffer_get_string(&msg, NULL);
463: a = decode_attrib(&msg);
464:
1.12 djm 465: if (printflag)
466: printf("%s\n", longname);
467:
468: if (dir) {
1.62 djm 469: *dir = xrealloc(*dir, ents + 2, sizeof(**dir));
1.12 djm 470: (*dir)[ents] = xmalloc(sizeof(***dir));
471: (*dir)[ents]->filename = xstrdup(filename);
472: (*dir)[ents]->longname = xstrdup(longname);
473: memcpy(&(*dir)[ents]->a, a, sizeof(*a));
474: (*dir)[++ents] = NULL;
475: }
1.1 djm 476:
477: xfree(filename);
478: xfree(longname);
479: }
480: }
481:
482: buffer_free(&msg);
1.23 djm 483: do_close(conn, handle, handle_len);
1.1 djm 484: xfree(handle);
485:
1.49 djm 486: /* Don't return partial matches on interrupt */
487: if (interrupted && dir != NULL && *dir != NULL) {
488: free_sftp_dirents(*dir);
489: *dir = xmalloc(sizeof(**dir));
490: **dir = NULL;
491: }
492:
1.1 djm 493: return(0);
1.12 djm 494: }
495:
496: int
1.23 djm 497: do_readdir(struct sftp_conn *conn, char *path, SFTP_DIRENT ***dir)
1.12 djm 498: {
1.23 djm 499: return(do_lsreaddir(conn, path, 0, dir));
1.12 djm 500: }
501:
502: void free_sftp_dirents(SFTP_DIRENT **s)
503: {
504: int i;
1.19 deraadt 505:
506: for (i = 0; s[i]; i++) {
1.12 djm 507: xfree(s[i]->filename);
508: xfree(s[i]->longname);
509: xfree(s[i]);
510: }
511: xfree(s);
512: }
513:
514: int
1.23 djm 515: do_rm(struct sftp_conn *conn, char *path)
1.1 djm 516: {
517: u_int status, id;
518:
519: debug2("Sending SSH2_FXP_REMOVE \"%s\"", path);
520:
1.23 djm 521: id = conn->msg_id++;
1.28 markus 522: send_string_request(conn->fd_out, id, SSH2_FXP_REMOVE, path,
1.23 djm 523: strlen(path));
524: status = get_status(conn->fd_in, id);
1.1 djm 525: if (status != SSH2_FX_OK)
526: error("Couldn't delete file: %s", fx2txt(status));
527: return(status);
528: }
529:
530: int
1.23 djm 531: do_mkdir(struct sftp_conn *conn, char *path, Attrib *a)
1.1 djm 532: {
533: u_int status, id;
534:
1.23 djm 535: id = conn->msg_id++;
536: send_string_attrs_request(conn->fd_out, id, SSH2_FXP_MKDIR, path,
1.1 djm 537: strlen(path), a);
538:
1.23 djm 539: status = get_status(conn->fd_in, id);
1.1 djm 540: if (status != SSH2_FX_OK)
541: error("Couldn't create directory: %s", fx2txt(status));
542:
543: return(status);
544: }
545:
546: int
1.23 djm 547: do_rmdir(struct sftp_conn *conn, char *path)
1.1 djm 548: {
549: u_int status, id;
550:
1.23 djm 551: id = conn->msg_id++;
552: send_string_request(conn->fd_out, id, SSH2_FXP_RMDIR, path,
553: strlen(path));
1.1 djm 554:
1.23 djm 555: status = get_status(conn->fd_in, id);
1.1 djm 556: if (status != SSH2_FX_OK)
557: error("Couldn't remove directory: %s", fx2txt(status));
558:
559: return(status);
560: }
561:
562: Attrib *
1.23 djm 563: do_stat(struct sftp_conn *conn, char *path, int quiet)
1.1 djm 564: {
565: u_int id;
566:
1.23 djm 567: id = conn->msg_id++;
568:
1.28 markus 569: send_string_request(conn->fd_out, id,
570: conn->version == 0 ? SSH2_FXP_STAT_VERSION_0 : SSH2_FXP_STAT,
1.23 djm 571: path, strlen(path));
572:
573: return(get_decode_stat(conn->fd_in, id, quiet));
1.1 djm 574: }
575:
576: Attrib *
1.23 djm 577: do_lstat(struct sftp_conn *conn, char *path, int quiet)
1.1 djm 578: {
579: u_int id;
580:
1.23 djm 581: if (conn->version == 0) {
582: if (quiet)
583: debug("Server version does not support lstat operation");
584: else
1.43 itojun 585: logit("Server version does not support lstat operation");
1.30 markus 586: return(do_stat(conn, path, quiet));
1.23 djm 587: }
588:
589: id = conn->msg_id++;
590: send_string_request(conn->fd_out, id, SSH2_FXP_LSTAT, path,
591: strlen(path));
592:
593: return(get_decode_stat(conn->fd_in, id, quiet));
1.1 djm 594: }
595:
1.78 chl 596: #ifdef notyet
1.1 djm 597: Attrib *
1.23 djm 598: do_fstat(struct sftp_conn *conn, char *handle, u_int handle_len, int quiet)
1.1 djm 599: {
600: u_int id;
601:
1.23 djm 602: id = conn->msg_id++;
603: send_string_request(conn->fd_out, id, SSH2_FXP_FSTAT, handle,
604: handle_len);
605:
606: return(get_decode_stat(conn->fd_in, id, quiet));
1.1 djm 607: }
1.78 chl 608: #endif
1.1 djm 609:
610: int
1.23 djm 611: do_setstat(struct sftp_conn *conn, char *path, Attrib *a)
1.1 djm 612: {
613: u_int status, id;
614:
1.23 djm 615: id = conn->msg_id++;
616: send_string_attrs_request(conn->fd_out, id, SSH2_FXP_SETSTAT, path,
1.1 djm 617: strlen(path), a);
618:
1.23 djm 619: status = get_status(conn->fd_in, id);
1.1 djm 620: if (status != SSH2_FX_OK)
621: error("Couldn't setstat on \"%s\": %s", path,
622: fx2txt(status));
623:
624: return(status);
625: }
626:
627: int
1.23 djm 628: do_fsetstat(struct sftp_conn *conn, char *handle, u_int handle_len,
1.1 djm 629: Attrib *a)
630: {
631: u_int status, id;
632:
1.23 djm 633: id = conn->msg_id++;
634: send_string_attrs_request(conn->fd_out, id, SSH2_FXP_FSETSTAT, handle,
1.1 djm 635: handle_len, a);
636:
1.23 djm 637: status = get_status(conn->fd_in, id);
1.1 djm 638: if (status != SSH2_FX_OK)
639: error("Couldn't fsetstat: %s", fx2txt(status));
640:
641: return(status);
642: }
643:
644: char *
1.23 djm 645: do_realpath(struct sftp_conn *conn, char *path)
1.1 djm 646: {
647: Buffer msg;
648: u_int type, expected_id, count, id;
649: char *filename, *longname;
650: Attrib *a;
651:
1.23 djm 652: expected_id = id = conn->msg_id++;
653: send_string_request(conn->fd_out, id, SSH2_FXP_REALPATH, path,
654: strlen(path));
1.1 djm 655:
656: buffer_init(&msg);
657:
1.23 djm 658: get_msg(conn->fd_in, &msg);
1.1 djm 659: type = buffer_get_char(&msg);
660: id = buffer_get_int(&msg);
661:
662: if (id != expected_id)
1.33 deraadt 663: fatal("ID mismatch (%u != %u)", id, expected_id);
1.1 djm 664:
665: if (type == SSH2_FXP_STATUS) {
666: u_int status = buffer_get_int(&msg);
667:
668: error("Couldn't canonicalise: %s", fx2txt(status));
669: return(NULL);
670: } else if (type != SSH2_FXP_NAME)
1.33 deraadt 671: fatal("Expected SSH2_FXP_NAME(%u) packet, got %u",
1.1 djm 672: SSH2_FXP_NAME, type);
673:
674: count = buffer_get_int(&msg);
675: if (count != 1)
676: fatal("Got multiple names (%d) from SSH_FXP_REALPATH", count);
677:
678: filename = buffer_get_string(&msg, NULL);
679: longname = buffer_get_string(&msg, NULL);
680: a = decode_attrib(&msg);
681:
682: debug3("SSH_FXP_REALPATH %s -> %s", path, filename);
683:
684: xfree(longname);
685:
686: buffer_free(&msg);
687:
688: return(filename);
689: }
690:
691: int
1.23 djm 692: do_rename(struct sftp_conn *conn, char *oldpath, char *newpath)
1.1 djm 693: {
694: Buffer msg;
695: u_int status, id;
696:
697: buffer_init(&msg);
698:
699: /* Send rename request */
1.23 djm 700: id = conn->msg_id++;
1.81 djm 701: if ((conn->exts & SFTP_EXT_POSIX_RENAME)) {
702: buffer_put_char(&msg, SSH2_FXP_EXTENDED);
703: buffer_put_int(&msg, id);
704: buffer_put_cstring(&msg, "posix-rename@openssh.com");
705: } else {
706: buffer_put_char(&msg, SSH2_FXP_RENAME);
707: buffer_put_int(&msg, id);
708: }
1.1 djm 709: buffer_put_cstring(&msg, oldpath);
710: buffer_put_cstring(&msg, newpath);
1.23 djm 711: send_msg(conn->fd_out, &msg);
1.81 djm 712: debug3("Sent message %s \"%s\" -> \"%s\"",
713: (conn->exts & SFTP_EXT_POSIX_RENAME) ? "posix-rename@openssh.com" :
714: "SSH2_FXP_RENAME", oldpath, newpath);
1.1 djm 715: buffer_free(&msg);
716:
1.23 djm 717: status = get_status(conn->fd_in, id);
1.1 djm 718: if (status != SSH2_FX_OK)
1.23 djm 719: error("Couldn't rename file \"%s\" to \"%s\": %s", oldpath,
720: newpath, fx2txt(status));
1.1 djm 721:
722: return(status);
1.11 djm 723: }
724:
725: int
1.23 djm 726: do_symlink(struct sftp_conn *conn, char *oldpath, char *newpath)
1.11 djm 727: {
728: Buffer msg;
729: u_int status, id;
730:
1.23 djm 731: if (conn->version < 3) {
732: error("This server does not support the symlink operation");
733: return(SSH2_FX_OP_UNSUPPORTED);
734: }
735:
1.11 djm 736: buffer_init(&msg);
737:
1.48 djm 738: /* Send symlink request */
1.23 djm 739: id = conn->msg_id++;
1.11 djm 740: buffer_put_char(&msg, SSH2_FXP_SYMLINK);
741: buffer_put_int(&msg, id);
742: buffer_put_cstring(&msg, oldpath);
743: buffer_put_cstring(&msg, newpath);
1.23 djm 744: send_msg(conn->fd_out, &msg);
1.11 djm 745: debug3("Sent message SSH2_FXP_SYMLINK \"%s\" -> \"%s\"", oldpath,
746: newpath);
747: buffer_free(&msg);
748:
1.23 djm 749: status = get_status(conn->fd_in, id);
1.11 djm 750: if (status != SSH2_FX_OK)
1.36 markus 751: error("Couldn't symlink file \"%s\" to \"%s\": %s", oldpath,
1.23 djm 752: newpath, fx2txt(status));
1.11 djm 753:
754: return(status);
755: }
756:
1.78 chl 757: #ifdef notyet
1.11 djm 758: char *
1.23 djm 759: do_readlink(struct sftp_conn *conn, char *path)
1.11 djm 760: {
761: Buffer msg;
762: u_int type, expected_id, count, id;
763: char *filename, *longname;
764: Attrib *a;
765:
1.23 djm 766: expected_id = id = conn->msg_id++;
767: send_string_request(conn->fd_out, id, SSH2_FXP_READLINK, path,
768: strlen(path));
1.11 djm 769:
770: buffer_init(&msg);
771:
1.23 djm 772: get_msg(conn->fd_in, &msg);
1.11 djm 773: type = buffer_get_char(&msg);
774: id = buffer_get_int(&msg);
775:
776: if (id != expected_id)
1.33 deraadt 777: fatal("ID mismatch (%u != %u)", id, expected_id);
1.11 djm 778:
779: if (type == SSH2_FXP_STATUS) {
780: u_int status = buffer_get_int(&msg);
781:
782: error("Couldn't readlink: %s", fx2txt(status));
783: return(NULL);
784: } else if (type != SSH2_FXP_NAME)
1.33 deraadt 785: fatal("Expected SSH2_FXP_NAME(%u) packet, got %u",
1.11 djm 786: SSH2_FXP_NAME, type);
787:
788: count = buffer_get_int(&msg);
789: if (count != 1)
790: fatal("Got multiple names (%d) from SSH_FXP_READLINK", count);
791:
792: filename = buffer_get_string(&msg, NULL);
793: longname = buffer_get_string(&msg, NULL);
794: a = decode_attrib(&msg);
795:
796: debug3("SSH_FXP_READLINK %s -> %s", path, filename);
797:
798: xfree(longname);
799:
800: buffer_free(&msg);
801:
802: return(filename);
1.82 djm 803: }
804: #endif
805:
806: int
807: do_statvfs(struct sftp_conn *conn, const char *path, struct statvfs *st,
808: int quiet)
809: {
810: Buffer msg;
811: u_int id;
812:
813: if ((conn->exts & SFTP_EXT_STATVFS) == 0) {
814: error("Server does not support statvfs@openssh.com extension");
815: return -1;
816: }
817:
818: id = conn->msg_id++;
819:
820: buffer_init(&msg);
821: buffer_clear(&msg);
822: buffer_put_char(&msg, SSH2_FXP_EXTENDED);
823: buffer_put_int(&msg, id);
824: buffer_put_cstring(&msg, "statvfs@openssh.com");
825: buffer_put_cstring(&msg, path);
826: send_msg(conn->fd_out, &msg);
827: buffer_free(&msg);
828:
829: return get_decode_statvfs(conn->fd_in, st, id, quiet);
830: }
831:
832: #ifdef notyet
833: int
834: do_fstatvfs(struct sftp_conn *conn, const char *handle, u_int handle_len,
835: struct statvfs *st, int quiet)
836: {
837: Buffer msg;
838: u_int id;
839:
840: if ((conn->exts & SFTP_EXT_FSTATVFS) == 0) {
841: error("Server does not support fstatvfs@openssh.com extension");
842: return -1;
843: }
844:
845: id = conn->msg_id++;
846:
847: buffer_init(&msg);
848: buffer_clear(&msg);
849: buffer_put_char(&msg, SSH2_FXP_EXTENDED);
850: buffer_put_int(&msg, id);
851: buffer_put_cstring(&msg, "fstatvfs@openssh.com");
852: buffer_put_string(&msg, handle, handle_len);
853: send_msg(conn->fd_out, &msg);
854: buffer_free(&msg);
855:
856: return get_decode_statvfs(conn->fd_in, st, id, quiet);
1.1 djm 857: }
1.78 chl 858: #endif
1.1 djm 859:
1.21 djm 860: static void
861: send_read_request(int fd_out, u_int id, u_int64_t offset, u_int len,
862: char *handle, u_int handle_len)
863: {
864: Buffer msg;
1.28 markus 865:
1.21 djm 866: buffer_init(&msg);
867: buffer_clear(&msg);
868: buffer_put_char(&msg, SSH2_FXP_READ);
869: buffer_put_int(&msg, id);
870: buffer_put_string(&msg, handle, handle_len);
871: buffer_put_int64(&msg, offset);
872: buffer_put_int(&msg, len);
873: send_msg(fd_out, &msg);
874: buffer_free(&msg);
1.28 markus 875: }
1.21 djm 876:
1.1 djm 877: int
1.23 djm 878: do_download(struct sftp_conn *conn, char *remote_path, char *local_path,
879: int pflag)
1.1 djm 880: {
1.21 djm 881: Attrib junk, *a;
882: Buffer msg;
1.1 djm 883: char *handle;
1.57 dtucker 884: int local_fd, status = 0, write_error;
1.21 djm 885: int read_error, write_errno;
886: u_int64_t offset, size;
1.55 djm 887: u_int handle_len, mode, type, id, buflen, num_req, max_req;
1.39 fgsch 888: off_t progress_counter;
1.21 djm 889: struct request {
890: u_int id;
891: u_int len;
892: u_int64_t offset;
1.28 markus 893: TAILQ_ENTRY(request) tq;
1.21 djm 894: };
895: TAILQ_HEAD(reqhead, request) requests;
896: struct request *req;
897:
898: TAILQ_INIT(&requests);
1.1 djm 899:
1.23 djm 900: a = do_stat(conn, remote_path, 0);
1.1 djm 901: if (a == NULL)
902: return(-1);
903:
904: /* XXX: should we preserve set[ug]id? */
905: if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
1.38 djm 906: mode = a->perm & 0777;
1.1 djm 907: else
908: mode = 0666;
909:
1.14 djm 910: if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
1.41 djm 911: (!S_ISREG(a->perm))) {
912: error("Cannot download non-regular file: %s", remote_path);
1.14 djm 913: return(-1);
914: }
915:
1.21 djm 916: if (a->flags & SSH2_FILEXFER_ATTR_SIZE)
917: size = a->size;
918: else
919: size = 0;
920:
1.23 djm 921: buflen = conn->transfer_buflen;
1.1 djm 922: buffer_init(&msg);
923:
924: /* Send open request */
1.23 djm 925: id = conn->msg_id++;
1.1 djm 926: buffer_put_char(&msg, SSH2_FXP_OPEN);
927: buffer_put_int(&msg, id);
928: buffer_put_cstring(&msg, remote_path);
929: buffer_put_int(&msg, SSH2_FXF_READ);
930: attrib_clear(&junk); /* Send empty attributes */
931: encode_attrib(&msg, &junk);
1.23 djm 932: send_msg(conn->fd_out, &msg);
1.33 deraadt 933: debug3("Sent message SSH2_FXP_OPEN I:%u P:%s", id, remote_path);
1.1 djm 934:
1.23 djm 935: handle = get_handle(conn->fd_in, id, &handle_len);
1.1 djm 936: if (handle == NULL) {
937: buffer_free(&msg);
938: return(-1);
939: }
940:
1.45 djm 941: local_fd = open(local_path, O_WRONLY | O_CREAT | O_TRUNC,
1.38 djm 942: mode | S_IWRITE);
1.23 djm 943: if (local_fd == -1) {
944: error("Couldn't open local file \"%s\" for writing: %s",
945: local_path, strerror(errno));
1.79 djm 946: do_close(conn, handle, handle_len);
1.24 markus 947: buffer_free(&msg);
948: xfree(handle);
1.23 djm 949: return(-1);
950: }
951:
1.1 djm 952: /* Read from remote and write to local */
1.21 djm 953: write_error = read_error = write_errno = num_req = offset = 0;
954: max_req = 1;
1.39 fgsch 955: progress_counter = 0;
956:
1.47 djm 957: if (showprogress && size != 0)
958: start_progress_meter(remote_path, size, &progress_counter);
1.39 fgsch 959:
1.21 djm 960: while (num_req > 0 || max_req > 0) {
961: char *data;
1.1 djm 962: u_int len;
963:
1.49 djm 964: /*
1.51 deraadt 965: * Simulate EOF on interrupt: stop sending new requests and
1.49 djm 966: * allow outstanding requests to drain gracefully
967: */
968: if (interrupted) {
969: if (num_req == 0) /* If we haven't started yet... */
970: break;
971: max_req = 0;
972: }
973:
1.21 djm 974: /* Send some more requests */
975: while (num_req < max_req) {
1.28 markus 976: debug3("Request range %llu -> %llu (%d/%d)",
1.25 itojun 977: (unsigned long long)offset,
978: (unsigned long long)offset + buflen - 1,
979: num_req, max_req);
1.21 djm 980: req = xmalloc(sizeof(*req));
1.23 djm 981: req->id = conn->msg_id++;
1.21 djm 982: req->len = buflen;
983: req->offset = offset;
984: offset += buflen;
985: num_req++;
986: TAILQ_INSERT_TAIL(&requests, req, tq);
1.28 markus 987: send_read_request(conn->fd_out, req->id, req->offset,
1.21 djm 988: req->len, handle, handle_len);
989: }
1.1 djm 990:
991: buffer_clear(&msg);
1.23 djm 992: get_msg(conn->fd_in, &msg);
1.1 djm 993: type = buffer_get_char(&msg);
994: id = buffer_get_int(&msg);
1.33 deraadt 995: debug3("Received reply T:%u I:%u R:%d", type, id, max_req);
1.21 djm 996:
997: /* Find the request in our queue */
1.53 deraadt 998: for (req = TAILQ_FIRST(&requests);
1.21 djm 999: req != NULL && req->id != id;
1000: req = TAILQ_NEXT(req, tq))
1001: ;
1002: if (req == NULL)
1003: fatal("Unexpected reply %u", id);
1004:
1005: switch (type) {
1006: case SSH2_FXP_STATUS:
1.5 djm 1007: status = buffer_get_int(&msg);
1.21 djm 1008: if (status != SSH2_FX_EOF)
1009: read_error = 1;
1010: max_req = 0;
1011: TAILQ_REMOVE(&requests, req, tq);
1012: xfree(req);
1013: num_req--;
1014: break;
1015: case SSH2_FXP_DATA:
1016: data = buffer_get_string(&msg, &len);
1.26 itojun 1017: debug3("Received data %llu -> %llu",
1.28 markus 1018: (unsigned long long)req->offset,
1.26 itojun 1019: (unsigned long long)req->offset + len - 1);
1.21 djm 1020: if (len > req->len)
1021: fatal("Received more data than asked for "
1.37 deraadt 1022: "%u > %u", len, req->len);
1.21 djm 1023: if ((lseek(local_fd, req->offset, SEEK_SET) == -1 ||
1.44 deraadt 1024: atomicio(vwrite, local_fd, data, len) != len) &&
1.21 djm 1025: !write_error) {
1026: write_errno = errno;
1027: write_error = 1;
1028: max_req = 0;
1029: }
1.39 fgsch 1030: progress_counter += len;
1.21 djm 1031: xfree(data);
1.1 djm 1032:
1.21 djm 1033: if (len == req->len) {
1034: TAILQ_REMOVE(&requests, req, tq);
1035: xfree(req);
1036: num_req--;
1037: } else {
1038: /* Resend the request for the missing data */
1039: debug3("Short data block, re-requesting "
1.26 itojun 1040: "%llu -> %llu (%2d)",
1.28 markus 1041: (unsigned long long)req->offset + len,
1.27 itojun 1042: (unsigned long long)req->offset +
1043: req->len - 1, num_req);
1.23 djm 1044: req->id = conn->msg_id++;
1.21 djm 1045: req->len -= len;
1046: req->offset += len;
1.28 markus 1047: send_read_request(conn->fd_out, req->id,
1.23 djm 1048: req->offset, req->len, handle, handle_len);
1.21 djm 1049: /* Reduce the request size */
1050: if (len < buflen)
1051: buflen = MAX(MIN_READ_SIZE, len);
1052: }
1053: if (max_req > 0) { /* max_req = 0 iff EOF received */
1054: if (size > 0 && offset > size) {
1055: /* Only one request at a time
1056: * after the expected EOF */
1057: debug3("Finish at %llu (%2d)",
1.26 itojun 1058: (unsigned long long)offset,
1059: num_req);
1.21 djm 1060: max_req = 1;
1.49 djm 1061: } else if (max_req <= conn->num_requests) {
1.21 djm 1062: ++max_req;
1063: }
1.1 djm 1064: }
1.21 djm 1065: break;
1066: default:
1.33 deraadt 1067: fatal("Expected SSH2_FXP_DATA(%u) packet, got %u",
1.1 djm 1068: SSH2_FXP_DATA, type);
1069: }
1.21 djm 1070: }
1.1 djm 1071:
1.39 fgsch 1072: if (showprogress && size)
1073: stop_progress_meter();
1074:
1.21 djm 1075: /* Sanity check */
1076: if (TAILQ_FIRST(&requests) != NULL)
1077: fatal("Transfer complete, but requests still in queue");
1078:
1079: if (read_error) {
1.28 markus 1080: error("Couldn't read from remote file \"%s\" : %s",
1.21 djm 1081: remote_path, fx2txt(status));
1.23 djm 1082: do_close(conn, handle, handle_len);
1.21 djm 1083: } else if (write_error) {
1084: error("Couldn't write to \"%s\": %s", local_path,
1085: strerror(write_errno));
1086: status = -1;
1.23 djm 1087: do_close(conn, handle, handle_len);
1.21 djm 1088: } else {
1.23 djm 1089: status = do_close(conn, handle, handle_len);
1.21 djm 1090:
1091: /* Override umask and utimes if asked */
1092: if (pflag && fchmod(local_fd, mode) == -1)
1093: error("Couldn't set mode on \"%s\": %s", local_path,
1.37 deraadt 1094: strerror(errno));
1.21 djm 1095: if (pflag && (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME)) {
1096: struct timeval tv[2];
1097: tv[0].tv_sec = a->atime;
1098: tv[1].tv_sec = a->mtime;
1099: tv[0].tv_usec = tv[1].tv_usec = 0;
1100: if (utimes(local_path, tv) == -1)
1101: error("Can't set times on \"%s\": %s",
1.37 deraadt 1102: local_path, strerror(errno));
1.1 djm 1103: }
1.10 djm 1104: }
1.5 djm 1105: close(local_fd);
1106: buffer_free(&msg);
1.1 djm 1107: xfree(handle);
1.23 djm 1108:
1109: return(status);
1.1 djm 1110: }
1111:
1112: int
1.23 djm 1113: do_upload(struct sftp_conn *conn, char *local_path, char *remote_path,
1114: int pflag)
1.1 djm 1115: {
1.80 djm 1116: int local_fd;
1117: int status = SSH2_FX_OK;
1.22 djm 1118: u_int handle_len, id, type;
1.77 djm 1119: off_t offset;
1.20 djm 1120: char *handle, *data;
1.1 djm 1121: Buffer msg;
1122: struct stat sb;
1123: Attrib a;
1.21 djm 1124: u_int32_t startid;
1125: u_int32_t ackid;
1.22 djm 1126: struct outstanding_ack {
1127: u_int id;
1128: u_int len;
1.77 djm 1129: off_t offset;
1.28 markus 1130: TAILQ_ENTRY(outstanding_ack) tq;
1.22 djm 1131: };
1132: TAILQ_HEAD(ackhead, outstanding_ack) acks;
1.50 pedro 1133: struct outstanding_ack *ack = NULL;
1.22 djm 1134:
1135: TAILQ_INIT(&acks);
1.1 djm 1136:
1137: if ((local_fd = open(local_path, O_RDONLY, 0)) == -1) {
1138: error("Couldn't open local file \"%s\" for reading: %s",
1139: local_path, strerror(errno));
1140: return(-1);
1141: }
1142: if (fstat(local_fd, &sb) == -1) {
1143: error("Couldn't fstat local file \"%s\": %s",
1144: local_path, strerror(errno));
1.41 djm 1145: close(local_fd);
1146: return(-1);
1147: }
1148: if (!S_ISREG(sb.st_mode)) {
1149: error("%s is not a regular file", local_path);
1.1 djm 1150: close(local_fd);
1151: return(-1);
1152: }
1153: stat_to_attrib(&sb, &a);
1154:
1155: a.flags &= ~SSH2_FILEXFER_ATTR_SIZE;
1156: a.flags &= ~SSH2_FILEXFER_ATTR_UIDGID;
1157: a.perm &= 0777;
1158: if (!pflag)
1159: a.flags &= ~SSH2_FILEXFER_ATTR_ACMODTIME;
1160:
1161: buffer_init(&msg);
1162:
1163: /* Send open request */
1.23 djm 1164: id = conn->msg_id++;
1.1 djm 1165: buffer_put_char(&msg, SSH2_FXP_OPEN);
1166: buffer_put_int(&msg, id);
1167: buffer_put_cstring(&msg, remote_path);
1168: buffer_put_int(&msg, SSH2_FXF_WRITE|SSH2_FXF_CREAT|SSH2_FXF_TRUNC);
1169: encode_attrib(&msg, &a);
1.23 djm 1170: send_msg(conn->fd_out, &msg);
1.33 deraadt 1171: debug3("Sent message SSH2_FXP_OPEN I:%u P:%s", id, remote_path);
1.1 djm 1172:
1173: buffer_clear(&msg);
1174:
1.23 djm 1175: handle = get_handle(conn->fd_in, id, &handle_len);
1.1 djm 1176: if (handle == NULL) {
1177: close(local_fd);
1178: buffer_free(&msg);
1.80 djm 1179: return -1;
1.1 djm 1180: }
1181:
1.21 djm 1182: startid = ackid = id + 1;
1.23 djm 1183: data = xmalloc(conn->transfer_buflen);
1.20 djm 1184:
1.1 djm 1185: /* Read from local and write to remote */
1186: offset = 0;
1.39 fgsch 1187: if (showprogress)
1188: start_progress_meter(local_path, sb.st_size, &offset);
1189:
1.19 deraadt 1190: for (;;) {
1.1 djm 1191: int len;
1192:
1193: /*
1.51 deraadt 1194: * Can't use atomicio here because it returns 0 on EOF,
1.49 djm 1195: * thus losing the last block of the file.
1.51 deraadt 1196: * Simulate an EOF on interrupt, allowing ACKs from the
1.49 djm 1197: * server to drain.
1.1 djm 1198: */
1.80 djm 1199: if (interrupted || status != SSH2_FX_OK)
1.49 djm 1200: len = 0;
1201: else do
1.23 djm 1202: len = read(local_fd, data, conn->transfer_buflen);
1.1 djm 1203: while ((len == -1) && (errno == EINTR || errno == EAGAIN));
1204:
1205: if (len == -1)
1206: fatal("Couldn't read from \"%s\": %s", local_path,
1207: strerror(errno));
1.21 djm 1208:
1209: if (len != 0) {
1.22 djm 1210: ack = xmalloc(sizeof(*ack));
1211: ack->id = ++id;
1212: ack->offset = offset;
1213: ack->len = len;
1214: TAILQ_INSERT_TAIL(&acks, ack, tq);
1215:
1.21 djm 1216: buffer_clear(&msg);
1217: buffer_put_char(&msg, SSH2_FXP_WRITE);
1.22 djm 1218: buffer_put_int(&msg, ack->id);
1.21 djm 1219: buffer_put_string(&msg, handle, handle_len);
1220: buffer_put_int64(&msg, offset);
1221: buffer_put_string(&msg, data, len);
1.23 djm 1222: send_msg(conn->fd_out, &msg);
1.33 deraadt 1223: debug3("Sent message SSH2_FXP_WRITE I:%u O:%llu S:%u",
1.37 deraadt 1224: id, (unsigned long long)offset, len);
1.22 djm 1225: } else if (TAILQ_FIRST(&acks) == NULL)
1.1 djm 1226: break;
1227:
1.22 djm 1228: if (ack == NULL)
1229: fatal("Unexpected ACK %u", id);
1230:
1.28 markus 1231: if (id == startid || len == 0 ||
1.23 djm 1232: id - ackid >= conn->num_requests) {
1.32 markus 1233: u_int r_id;
1.31 djm 1234:
1.22 djm 1235: buffer_clear(&msg);
1.23 djm 1236: get_msg(conn->fd_in, &msg);
1.22 djm 1237: type = buffer_get_char(&msg);
1.31 djm 1238: r_id = buffer_get_int(&msg);
1.22 djm 1239:
1240: if (type != SSH2_FXP_STATUS)
1241: fatal("Expected SSH2_FXP_STATUS(%d) packet, "
1242: "got %d", SSH2_FXP_STATUS, type);
1243:
1244: status = buffer_get_int(&msg);
1245: debug3("SSH2_FXP_STATUS %d", status);
1246:
1247: /* Find the request in our queue */
1.53 deraadt 1248: for (ack = TAILQ_FIRST(&acks);
1.31 djm 1249: ack != NULL && ack->id != r_id;
1.22 djm 1250: ack = TAILQ_NEXT(ack, tq))
1251: ;
1252: if (ack == NULL)
1.33 deraadt 1253: fatal("Can't find request for ID %u", r_id);
1.22 djm 1254: TAILQ_REMOVE(&acks, ack, tq);
1.77 djm 1255: debug3("In write loop, ack for %u %u bytes at %lld",
1256: ack->id, ack->len, (long long)ack->offset);
1.21 djm 1257: ++ackid;
1.34 deraadt 1258: xfree(ack);
1.1 djm 1259: }
1260: offset += len;
1.77 djm 1261: if (offset < 0)
1262: fatal("%s: offset < 0", __func__);
1.1 djm 1263: }
1.80 djm 1264: buffer_free(&msg);
1265:
1.39 fgsch 1266: if (showprogress)
1267: stop_progress_meter();
1.20 djm 1268: xfree(data);
1.1 djm 1269:
1.80 djm 1270: if (status != SSH2_FX_OK) {
1271: error("Couldn't write to remote file \"%s\": %s",
1272: remote_path, fx2txt(status));
1273: status = -1;
1274: }
1275:
1.1 djm 1276: if (close(local_fd) == -1) {
1277: error("Couldn't close local file \"%s\": %s", local_path,
1278: strerror(errno));
1.5 djm 1279: status = -1;
1.1 djm 1280: }
1281:
1.10 djm 1282: /* Override umask and utimes if asked */
1283: if (pflag)
1.23 djm 1284: do_fsetstat(conn, handle, handle_len, &a);
1.10 djm 1285:
1.80 djm 1286: if (do_close(conn, handle, handle_len) != SSH2_FX_OK)
1287: status = -1;
1288: xfree(handle);
1.5 djm 1289:
1.80 djm 1290: return status;
1.1 djm 1291: }
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