Annotation of src/usr.bin/ssh/sftp-client.c, Revision 1.161
1.161 ! djm 1: /* $OpenBSD: sftp-client.c,v 1.160 2022/01/08 07:37:32 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>
1.93 djm 24: #include <sys/poll.h>
1.21 djm 25: #include <sys/queue.h>
1.60 stevesk 26: #include <sys/stat.h>
1.71 stevesk 27: #include <sys/time.h>
1.82 djm 28: #include <sys/statvfs.h>
1.74 deraadt 29: #include <sys/uio.h>
1.66 stevesk 30:
1.89 djm 31: #include <dirent.h>
1.67 stevesk 32: #include <errno.h>
1.66 stevesk 33: #include <fcntl.h>
1.152 djm 34: #include <poll.h>
1.70 stevesk 35: #include <signal.h>
1.87 dtucker 36: #include <stdarg.h>
1.73 stevesk 37: #include <stdio.h>
1.109 dtucker 38: #include <stdlib.h>
1.69 stevesk 39: #include <string.h>
1.68 stevesk 40: #include <unistd.h>
1.1 djm 41:
1.74 deraadt 42: #include "xmalloc.h"
1.116 djm 43: #include "ssherr.h"
44: #include "sshbuf.h"
1.1 djm 45: #include "log.h"
46: #include "atomicio.h"
1.39 fgsch 47: #include "progressmeter.h"
1.64 djm 48: #include "misc.h"
1.124 schwarze 49: #include "utf8.h"
1.1 djm 50:
51: #include "sftp.h"
52: #include "sftp-common.h"
53: #include "sftp-client.h"
54:
1.49 djm 55: extern volatile sig_atomic_t interrupted;
1.39 fgsch 56: extern int showprogress;
57:
1.141 djm 58: /* Default size of buffer for up/download */
59: #define DEFAULT_COPY_BUFLEN 32768
60:
61: /* Default number of concurrent outstanding requests */
62: #define DEFAULT_NUM_REQUESTS 64
63:
1.59 david 64: /* Minimum amount of data to read at a time */
1.21 djm 65: #define MIN_READ_SIZE 512
66:
1.89 djm 67: /* Maximum depth to descend in directory trees */
68: #define MAX_DIR_DEPTH 64
69:
1.23 djm 70: struct sftp_conn {
71: int fd_in;
72: int fd_out;
1.141 djm 73: u_int download_buflen;
74: u_int upload_buflen;
1.23 djm 75: u_int num_requests;
76: u_int version;
77: u_int msg_id;
1.82 djm 78: #define SFTP_EXT_POSIX_RENAME 0x00000001
79: #define SFTP_EXT_STATVFS 0x00000002
80: #define SFTP_EXT_FSTATVFS 0x00000004
1.94 djm 81: #define SFTP_EXT_HARDLINK 0x00000008
1.107 djm 82: #define SFTP_EXT_FSYNC 0x00000010
1.131 djm 83: #define SFTP_EXT_LSETSTAT 0x00000020
1.141 djm 84: #define SFTP_EXT_LIMITS 0x00000040
1.154 djm 85: #define SFTP_EXT_PATH_EXPAND 0x00000080
1.81 djm 86: u_int exts;
1.93 djm 87: u_int64_t limit_kbps;
88: struct bwlimit bwlimit_in, bwlimit_out;
1.23 djm 89: };
1.4 djm 90:
1.146 djm 91: /* Tracks in-progress requests during file transfers */
92: struct request {
93: u_int id;
94: size_t len;
95: u_int64_t offset;
96: TAILQ_ENTRY(request) tq;
97: };
98: TAILQ_HEAD(requests, request);
99:
1.116 djm 100: static u_char *
101: get_handle(struct sftp_conn *conn, u_int expected_id, size_t *len,
1.93 djm 102: const char *errfmt, ...) __attribute__((format(printf, 4, 5)));
103:
1.151 djm 104: static struct request *
105: request_enqueue(struct requests *requests, u_int id, size_t len,
106: uint64_t offset)
107: {
108: struct request *req;
109:
110: req = xcalloc(1, sizeof(*req));
111: req->id = id;
112: req->len = len;
113: req->offset = offset;
114: TAILQ_INSERT_TAIL(requests, req, tq);
115: return req;
116: }
117:
118: static struct request *
119: request_find(struct requests *requests, u_int id)
120: {
121: struct request *req;
122:
123: for (req = TAILQ_FIRST(requests);
124: req != NULL && req->id != id;
125: req = TAILQ_NEXT(req, tq))
126: ;
127: return req;
128: }
129:
1.93 djm 130: /* ARGSUSED */
131: static int
132: sftpio(void *_bwlimit, size_t amount)
133: {
134: struct bwlimit *bwlimit = (struct bwlimit *)_bwlimit;
135:
1.133 dtucker 136: refresh_progress_meter(0);
1.132 dtucker 137: if (bwlimit != NULL)
138: bandwidth_limit(bwlimit, amount);
1.93 djm 139: return 0;
140: }
1.88 djm 141:
1.17 itojun 142: static void
1.116 djm 143: send_msg(struct sftp_conn *conn, struct sshbuf *m)
1.1 djm 144: {
1.40 djm 145: u_char mlen[4];
1.65 djm 146: struct iovec iov[2];
1.40 djm 147:
1.116 djm 148: if (sshbuf_len(m) > SFTP_MAX_MSG_LENGTH)
149: fatal("Outbound message too long %zu", sshbuf_len(m));
1.40 djm 150:
151: /* Send length first */
1.116 djm 152: put_u32(mlen, sshbuf_len(m));
1.65 djm 153: iov[0].iov_base = mlen;
154: iov[0].iov_len = sizeof(mlen);
1.116 djm 155: iov[1].iov_base = (u_char *)sshbuf_ptr(m);
156: iov[1].iov_len = sshbuf_len(m);
1.74 deraadt 157:
1.132 dtucker 158: if (atomiciov6(writev, conn->fd_out, iov, 2, sftpio,
159: conn->limit_kbps > 0 ? &conn->bwlimit_out : NULL) !=
1.116 djm 160: sshbuf_len(m) + sizeof(mlen))
1.1 djm 161: fatal("Couldn't send packet: %s", strerror(errno));
162:
1.116 djm 163: sshbuf_reset(m);
1.1 djm 164: }
165:
1.17 itojun 166: static void
1.128 dtucker 167: get_msg_extended(struct sftp_conn *conn, struct sshbuf *m, int initial)
1.1 djm 168: {
1.40 djm 169: u_int msg_len;
1.116 djm 170: u_char *p;
171: int r;
1.1 djm 172:
1.144 djm 173: sshbuf_reset(m);
1.116 djm 174: if ((r = sshbuf_reserve(m, 4, &p)) != 0)
1.137 djm 175: fatal_fr(r, "reserve");
1.132 dtucker 176: if (atomicio6(read, conn->fd_in, p, 4, sftpio,
177: conn->limit_kbps > 0 ? &conn->bwlimit_in : NULL) != 4) {
1.127 djm 178: if (errno == EPIPE || errno == ECONNRESET)
1.54 avsm 179: fatal("Connection closed");
180: else
181: fatal("Couldn't read packet: %s", strerror(errno));
182: }
1.1 djm 183:
1.116 djm 184: if ((r = sshbuf_get_u32(m, &msg_len)) != 0)
1.137 djm 185: fatal_fr(r, "sshbuf_get_u32");
1.128 dtucker 186: if (msg_len > SFTP_MAX_MSG_LENGTH) {
187: do_log2(initial ? SYSLOG_LEVEL_ERROR : SYSLOG_LEVEL_FATAL,
188: "Received message too long %u", msg_len);
189: fatal("Ensure the remote shell produces no output "
190: "for non-interactive sessions.");
191: }
1.1 djm 192:
1.116 djm 193: if ((r = sshbuf_reserve(m, msg_len, &p)) != 0)
1.137 djm 194: fatal_fr(r, "reserve");
1.132 dtucker 195: if (atomicio6(read, conn->fd_in, p, msg_len, sftpio,
196: conn->limit_kbps > 0 ? &conn->bwlimit_in : NULL)
1.93 djm 197: != msg_len) {
1.54 avsm 198: if (errno == EPIPE)
199: fatal("Connection closed");
200: else
201: fatal("Read packet: %s", strerror(errno));
202: }
1.1 djm 203: }
204:
1.17 itojun 205: static void
1.128 dtucker 206: get_msg(struct sftp_conn *conn, struct sshbuf *m)
207: {
208: get_msg_extended(conn, m, 0);
209: }
210:
211: static void
1.116 djm 212: send_string_request(struct sftp_conn *conn, u_int id, u_int code, const char *s,
1.1 djm 213: u_int len)
214: {
1.116 djm 215: struct sshbuf *msg;
216: int r;
1.1 djm 217:
1.116 djm 218: if ((msg = sshbuf_new()) == NULL)
1.137 djm 219: fatal_f("sshbuf_new failed");
1.116 djm 220: if ((r = sshbuf_put_u8(msg, code)) != 0 ||
221: (r = sshbuf_put_u32(msg, id)) != 0 ||
222: (r = sshbuf_put_string(msg, s, len)) != 0)
1.137 djm 223: fatal_fr(r, "compose");
1.116 djm 224: send_msg(conn, msg);
1.93 djm 225: debug3("Sent message fd %d T:%u I:%u", conn->fd_out, code, id);
1.116 djm 226: sshbuf_free(msg);
1.1 djm 227: }
228:
1.17 itojun 229: static void
1.93 djm 230: send_string_attrs_request(struct sftp_conn *conn, u_int id, u_int code,
1.116 djm 231: const void *s, u_int len, Attrib *a)
1.1 djm 232: {
1.116 djm 233: struct sshbuf *msg;
234: int r;
1.1 djm 235:
1.116 djm 236: if ((msg = sshbuf_new()) == NULL)
1.137 djm 237: fatal_f("sshbuf_new failed");
1.116 djm 238: if ((r = sshbuf_put_u8(msg, code)) != 0 ||
239: (r = sshbuf_put_u32(msg, id)) != 0 ||
240: (r = sshbuf_put_string(msg, s, len)) != 0 ||
241: (r = encode_attrib(msg, a)) != 0)
1.137 djm 242: fatal_fr(r, "compose");
1.116 djm 243: send_msg(conn, msg);
1.148 djm 244: debug3("Sent message fd %d T:%u I:%u F:0x%04x M:%05o",
245: conn->fd_out, code, id, a->flags, a->perm);
1.116 djm 246: sshbuf_free(msg);
1.1 djm 247: }
248:
1.17 itojun 249: static u_int
1.93 djm 250: get_status(struct sftp_conn *conn, u_int expected_id)
1.1 djm 251: {
1.116 djm 252: struct sshbuf *msg;
253: u_char type;
254: u_int id, status;
255: int r;
1.1 djm 256:
1.116 djm 257: if ((msg = sshbuf_new()) == NULL)
1.137 djm 258: fatal_f("sshbuf_new failed");
1.116 djm 259: get_msg(conn, msg);
260: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
261: (r = sshbuf_get_u32(msg, &id)) != 0)
1.137 djm 262: fatal_fr(r, "compose");
1.1 djm 263:
264: if (id != expected_id)
1.33 deraadt 265: fatal("ID mismatch (%u != %u)", id, expected_id);
1.1 djm 266: if (type != SSH2_FXP_STATUS)
1.33 deraadt 267: fatal("Expected SSH2_FXP_STATUS(%u) packet, got %u",
1.1 djm 268: SSH2_FXP_STATUS, type);
269:
1.116 djm 270: if ((r = sshbuf_get_u32(msg, &status)) != 0)
1.137 djm 271: fatal_fr(r, "parse");
1.116 djm 272: sshbuf_free(msg);
1.1 djm 273:
1.33 deraadt 274: debug3("SSH2_FXP_STATUS %u", status);
1.1 djm 275:
1.93 djm 276: return status;
1.1 djm 277: }
278:
1.116 djm 279: static u_char *
280: get_handle(struct sftp_conn *conn, u_int expected_id, size_t *len,
1.93 djm 281: const char *errfmt, ...)
1.1 djm 282: {
1.116 djm 283: struct sshbuf *msg;
284: u_int id, status;
285: u_char type;
286: u_char *handle;
287: char errmsg[256];
1.88 djm 288: va_list args;
1.116 djm 289: int r;
1.88 djm 290:
291: va_start(args, errfmt);
292: if (errfmt != NULL)
293: vsnprintf(errmsg, sizeof(errmsg), errfmt, args);
294: va_end(args);
1.1 djm 295:
1.116 djm 296: if ((msg = sshbuf_new()) == NULL)
1.137 djm 297: fatal_f("sshbuf_new failed");
1.116 djm 298: get_msg(conn, msg);
299: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
300: (r = sshbuf_get_u32(msg, &id)) != 0)
1.137 djm 301: fatal_fr(r, "parse");
1.1 djm 302:
303: if (id != expected_id)
1.88 djm 304: fatal("%s: ID mismatch (%u != %u)",
305: errfmt == NULL ? __func__ : errmsg, id, expected_id);
1.1 djm 306: if (type == SSH2_FXP_STATUS) {
1.116 djm 307: if ((r = sshbuf_get_u32(msg, &status)) != 0)
1.137 djm 308: fatal_fr(r, "parse status");
1.88 djm 309: if (errfmt != NULL)
310: error("%s: %s", errmsg, fx2txt(status));
1.116 djm 311: sshbuf_free(msg);
1.1 djm 312: return(NULL);
313: } else if (type != SSH2_FXP_HANDLE)
1.88 djm 314: fatal("%s: Expected SSH2_FXP_HANDLE(%u) packet, got %u",
315: errfmt == NULL ? __func__ : errmsg, SSH2_FXP_HANDLE, type);
1.1 djm 316:
1.116 djm 317: if ((r = sshbuf_get_string(msg, &handle, len)) != 0)
1.137 djm 318: fatal_fr(r, "parse handle");
1.116 djm 319: sshbuf_free(msg);
1.1 djm 320:
1.116 djm 321: return handle;
1.1 djm 322: }
323:
1.158 jsg 324: /* XXX returning &static is error-prone. Refactor to fill *Attrib argument */
1.17 itojun 325: static Attrib *
1.93 djm 326: get_decode_stat(struct sftp_conn *conn, u_int expected_id, int quiet)
1.1 djm 327: {
1.116 djm 328: struct sshbuf *msg;
329: u_int id;
330: u_char type;
331: int r;
332: static Attrib a;
333:
334: if ((msg = sshbuf_new()) == NULL)
1.137 djm 335: fatal_f("sshbuf_new failed");
1.116 djm 336: get_msg(conn, msg);
337:
338: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
339: (r = sshbuf_get_u32(msg, &id)) != 0)
1.137 djm 340: fatal_fr(r, "parse");
1.1 djm 341:
342: if (id != expected_id)
1.33 deraadt 343: fatal("ID mismatch (%u != %u)", id, expected_id);
1.1 djm 344: if (type == SSH2_FXP_STATUS) {
1.116 djm 345: u_int status;
1.1 djm 346:
1.116 djm 347: if ((r = sshbuf_get_u32(msg, &status)) != 0)
1.137 djm 348: fatal_fr(r, "parse status");
1.14 djm 349: if (quiet)
1.161 ! djm 350: debug("stat remote: %s", fx2txt(status));
1.14 djm 351: else
1.161 ! djm 352: error("stat remote: %s", fx2txt(status));
1.116 djm 353: sshbuf_free(msg);
1.1 djm 354: return(NULL);
355: } else if (type != SSH2_FXP_ATTRS) {
1.33 deraadt 356: fatal("Expected SSH2_FXP_ATTRS(%u) packet, got %u",
1.1 djm 357: SSH2_FXP_ATTRS, type);
358: }
1.116 djm 359: if ((r = decode_attrib(msg, &a)) != 0) {
1.137 djm 360: error_fr(r, "decode_attrib");
1.116 djm 361: sshbuf_free(msg);
362: return NULL;
363: }
1.158 jsg 364: debug3("Received stat reply T:%u I:%u F:0x%04x M:%05o",
1.148 djm 365: type, id, a.flags, a.perm);
1.116 djm 366: sshbuf_free(msg);
1.1 djm 367:
1.116 djm 368: return &a;
1.1 djm 369: }
370:
1.82 djm 371: static int
1.93 djm 372: get_decode_statvfs(struct sftp_conn *conn, struct sftp_statvfs *st,
373: u_int expected_id, int quiet)
1.82 djm 374: {
1.116 djm 375: struct sshbuf *msg;
376: u_char type;
377: u_int id;
378: u_int64_t flag;
379: int r;
1.82 djm 380:
1.116 djm 381: if ((msg = sshbuf_new()) == NULL)
1.137 djm 382: fatal_f("sshbuf_new failed");
1.116 djm 383: get_msg(conn, msg);
384:
385: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
386: (r = sshbuf_get_u32(msg, &id)) != 0)
1.137 djm 387: fatal_fr(r, "parse");
1.82 djm 388:
389: debug3("Received statvfs reply T:%u I:%u", type, id);
390: if (id != expected_id)
391: fatal("ID mismatch (%u != %u)", id, expected_id);
392: if (type == SSH2_FXP_STATUS) {
1.116 djm 393: u_int status;
1.82 djm 394:
1.116 djm 395: if ((r = sshbuf_get_u32(msg, &status)) != 0)
1.137 djm 396: fatal_fr(r, "parse status");
1.82 djm 397: if (quiet)
1.161 ! djm 398: debug("remote statvfs: %s", fx2txt(status));
1.82 djm 399: else
1.161 ! djm 400: error("remote statvfs: %s", fx2txt(status));
1.116 djm 401: sshbuf_free(msg);
1.82 djm 402: return -1;
403: } else if (type != SSH2_FXP_EXTENDED_REPLY) {
404: fatal("Expected SSH2_FXP_EXTENDED_REPLY(%u) packet, got %u",
405: SSH2_FXP_EXTENDED_REPLY, type);
406: }
407:
1.114 tedu 408: memset(st, 0, sizeof(*st));
1.116 djm 409: if ((r = sshbuf_get_u64(msg, &st->f_bsize)) != 0 ||
410: (r = sshbuf_get_u64(msg, &st->f_frsize)) != 0 ||
411: (r = sshbuf_get_u64(msg, &st->f_blocks)) != 0 ||
412: (r = sshbuf_get_u64(msg, &st->f_bfree)) != 0 ||
413: (r = sshbuf_get_u64(msg, &st->f_bavail)) != 0 ||
414: (r = sshbuf_get_u64(msg, &st->f_files)) != 0 ||
415: (r = sshbuf_get_u64(msg, &st->f_ffree)) != 0 ||
416: (r = sshbuf_get_u64(msg, &st->f_favail)) != 0 ||
417: (r = sshbuf_get_u64(msg, &st->f_fsid)) != 0 ||
418: (r = sshbuf_get_u64(msg, &flag)) != 0 ||
419: (r = sshbuf_get_u64(msg, &st->f_namemax)) != 0)
1.137 djm 420: fatal_fr(r, "parse statvfs");
1.82 djm 421:
422: st->f_flag = (flag & SSH2_FXE_STATVFS_ST_RDONLY) ? ST_RDONLY : 0;
423: st->f_flag |= (flag & SSH2_FXE_STATVFS_ST_NOSUID) ? ST_NOSUID : 0;
424:
1.116 djm 425: sshbuf_free(msg);
1.82 djm 426:
427: return 0;
428: }
429:
1.23 djm 430: struct sftp_conn *
1.93 djm 431: do_init(int fd_in, int fd_out, u_int transfer_buflen, u_int num_requests,
432: u_int64_t limit_kbps)
1.1 djm 433: {
1.116 djm 434: u_char type;
435: struct sshbuf *msg;
1.23 djm 436: struct sftp_conn *ret;
1.116 djm 437: int r;
1.1 djm 438:
1.103 djm 439: ret = xcalloc(1, sizeof(*ret));
440: ret->msg_id = 1;
1.93 djm 441: ret->fd_in = fd_in;
442: ret->fd_out = fd_out;
1.141 djm 443: ret->download_buflen = ret->upload_buflen =
444: transfer_buflen ? transfer_buflen : DEFAULT_COPY_BUFLEN;
445: ret->num_requests =
446: num_requests ? num_requests : DEFAULT_NUM_REQUESTS;
1.93 djm 447: ret->exts = 0;
448: ret->limit_kbps = 0;
449:
1.116 djm 450: if ((msg = sshbuf_new()) == NULL)
1.137 djm 451: fatal_f("sshbuf_new failed");
1.116 djm 452: if ((r = sshbuf_put_u8(msg, SSH2_FXP_INIT)) != 0 ||
453: (r = sshbuf_put_u32(msg, SSH2_FILEXFER_VERSION)) != 0)
1.137 djm 454: fatal_fr(r, "parse");
455:
1.116 djm 456: send_msg(ret, msg);
1.1 djm 457:
1.128 dtucker 458: get_msg_extended(ret, msg, 1);
1.1 djm 459:
1.3 stevesk 460: /* Expecting a VERSION reply */
1.116 djm 461: if ((r = sshbuf_get_u8(msg, &type)) != 0)
1.137 djm 462: fatal_fr(r, "parse type");
1.116 djm 463: if (type != SSH2_FXP_VERSION) {
1.33 deraadt 464: error("Invalid packet back from SSH2_FXP_INIT (type %u)",
1.1 djm 465: type);
1.116 djm 466: sshbuf_free(msg);
1.119 jsg 467: free(ret);
1.23 djm 468: return(NULL);
1.1 djm 469: }
1.116 djm 470: if ((r = sshbuf_get_u32(msg, &ret->version)) != 0)
1.137 djm 471: fatal_fr(r, "parse version");
1.1 djm 472:
1.93 djm 473: debug2("Remote version: %u", ret->version);
1.1 djm 474:
475: /* Check for extensions */
1.116 djm 476: while (sshbuf_len(msg) > 0) {
477: char *name;
478: u_char *value;
479: size_t vlen;
1.85 djm 480: int known = 0;
1.1 djm 481:
1.116 djm 482: if ((r = sshbuf_get_cstring(msg, &name, NULL)) != 0 ||
483: (r = sshbuf_get_string(msg, &value, &vlen)) != 0)
1.137 djm 484: fatal_fr(r, "parse extension");
1.82 djm 485: if (strcmp(name, "posix-rename@openssh.com") == 0 &&
1.116 djm 486: strcmp((char *)value, "1") == 0) {
1.93 djm 487: ret->exts |= SFTP_EXT_POSIX_RENAME;
1.85 djm 488: known = 1;
489: } else if (strcmp(name, "statvfs@openssh.com") == 0 &&
1.116 djm 490: strcmp((char *)value, "2") == 0) {
1.93 djm 491: ret->exts |= SFTP_EXT_STATVFS;
1.85 djm 492: known = 1;
1.94 djm 493: } else if (strcmp(name, "fstatvfs@openssh.com") == 0 &&
1.116 djm 494: strcmp((char *)value, "2") == 0) {
1.93 djm 495: ret->exts |= SFTP_EXT_FSTATVFS;
1.85 djm 496: known = 1;
1.94 djm 497: } else if (strcmp(name, "hardlink@openssh.com") == 0 &&
1.116 djm 498: strcmp((char *)value, "1") == 0) {
1.94 djm 499: ret->exts |= SFTP_EXT_HARDLINK;
500: known = 1;
1.116 djm 501: } else if (strcmp(name, "fsync@openssh.com") == 0 &&
502: strcmp((char *)value, "1") == 0) {
503: ret->exts |= SFTP_EXT_FSYNC;
504: known = 1;
1.131 djm 505: } else if (strcmp(name, "lsetstat@openssh.com") == 0 &&
506: strcmp((char *)value, "1") == 0) {
507: ret->exts |= SFTP_EXT_LSETSTAT;
508: known = 1;
1.141 djm 509: } else if (strcmp(name, "limits@openssh.com") == 0 &&
510: strcmp((char *)value, "1") == 0) {
511: ret->exts |= SFTP_EXT_LIMITS;
512: known = 1;
1.154 djm 513: } else if (strcmp(name, "expand-path@openssh.com") == 0 &&
514: strcmp((char *)value, "1") == 0) {
515: ret->exts |= SFTP_EXT_PATH_EXPAND;
516: known = 1;
1.85 djm 517: }
518: if (known) {
519: debug2("Server supports extension \"%s\" revision %s",
520: name, value);
521: } else {
522: debug2("Unrecognised server extension \"%s\"", name);
523: }
1.98 djm 524: free(name);
525: free(value);
1.1 djm 526: }
527:
1.116 djm 528: sshbuf_free(msg);
1.11 djm 529:
1.141 djm 530: /* Query the server for its limits */
531: if (ret->exts & SFTP_EXT_LIMITS) {
532: struct sftp_limits limits;
533: if (do_limits(ret, &limits) != 0)
534: fatal_f("limits failed");
535:
536: /* If the caller did not specify, find a good value */
537: if (transfer_buflen == 0) {
538: ret->download_buflen = limits.read_length;
539: ret->upload_buflen = limits.write_length;
540: debug("Using server download size %u", ret->download_buflen);
541: debug("Using server upload size %u", ret->upload_buflen);
542: }
543:
544: /* Use the server limit to scale down our value only */
545: if (num_requests == 0 && limits.open_handles) {
546: ret->num_requests =
547: MINIMUM(DEFAULT_NUM_REQUESTS, limits.open_handles);
548: debug("Server handle limit %llu; using %u",
1.142 djm 549: (unsigned long long)limits.open_handles,
550: ret->num_requests);
1.141 djm 551: }
552: }
553:
1.23 djm 554: /* Some filexfer v.0 servers don't support large packets */
1.141 djm 555: if (ret->version == 0) {
556: ret->download_buflen = MINIMUM(ret->download_buflen, 20480);
557: ret->upload_buflen = MINIMUM(ret->upload_buflen, 20480);
558: }
1.23 djm 559:
1.93 djm 560: ret->limit_kbps = limit_kbps;
561: if (ret->limit_kbps > 0) {
562: bandwidth_limit_init(&ret->bwlimit_in, ret->limit_kbps,
1.141 djm 563: ret->download_buflen);
1.93 djm 564: bandwidth_limit_init(&ret->bwlimit_out, ret->limit_kbps,
1.141 djm 565: ret->upload_buflen);
1.93 djm 566: }
567:
568: return ret;
1.23 djm 569: }
570:
571: u_int
572: sftp_proto_version(struct sftp_conn *conn)
573: {
1.93 djm 574: return conn->version;
1.1 djm 575: }
576:
577: int
1.141 djm 578: do_limits(struct sftp_conn *conn, struct sftp_limits *limits)
579: {
580: u_int id, msg_id;
581: u_char type;
582: struct sshbuf *msg;
583: int r;
584:
585: if ((conn->exts & SFTP_EXT_LIMITS) == 0) {
586: error("Server does not support limits@openssh.com extension");
587: return -1;
588: }
589:
590: if ((msg = sshbuf_new()) == NULL)
591: fatal_f("sshbuf_new failed");
592:
593: id = conn->msg_id++;
594: if ((r = sshbuf_put_u8(msg, SSH2_FXP_EXTENDED)) != 0 ||
595: (r = sshbuf_put_u32(msg, id)) != 0 ||
596: (r = sshbuf_put_cstring(msg, "limits@openssh.com")) != 0)
597: fatal_fr(r, "compose");
598: send_msg(conn, msg);
599: debug3("Sent message limits@openssh.com I:%u", id);
600:
601: get_msg(conn, msg);
602:
603: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
604: (r = sshbuf_get_u32(msg, &msg_id)) != 0)
605: fatal_fr(r, "parse");
606:
607: debug3("Received limits reply T:%u I:%u", type, msg_id);
608: if (id != msg_id)
609: fatal("ID mismatch (%u != %u)", msg_id, id);
610: if (type != SSH2_FXP_EXTENDED_REPLY) {
1.143 djm 611: debug_f("expected SSH2_FXP_EXTENDED_REPLY(%u) packet, got %u",
1.142 djm 612: SSH2_FXP_EXTENDED_REPLY, type);
1.143 djm 613: /* Disable the limits extension */
614: conn->exts &= ~SFTP_EXT_LIMITS;
615: sshbuf_free(msg);
616: return 0;
1.141 djm 617: }
618:
619: memset(limits, 0, sizeof(*limits));
620: if ((r = sshbuf_get_u64(msg, &limits->packet_length)) != 0 ||
621: (r = sshbuf_get_u64(msg, &limits->read_length)) != 0 ||
622: (r = sshbuf_get_u64(msg, &limits->write_length)) != 0 ||
623: (r = sshbuf_get_u64(msg, &limits->open_handles)) != 0)
624: fatal_fr(r, "parse limits");
625:
626: sshbuf_free(msg);
627:
628: return 0;
629: }
630:
631: int
1.116 djm 632: do_close(struct sftp_conn *conn, const u_char *handle, u_int handle_len)
1.1 djm 633: {
634: u_int id, status;
1.116 djm 635: struct sshbuf *msg;
636: int r;
1.1 djm 637:
1.116 djm 638: if ((msg = sshbuf_new()) == NULL)
1.137 djm 639: fatal_f("sshbuf_new failed");
1.1 djm 640:
1.23 djm 641: id = conn->msg_id++;
1.116 djm 642: if ((r = sshbuf_put_u8(msg, SSH2_FXP_CLOSE)) != 0 ||
643: (r = sshbuf_put_u32(msg, id)) != 0 ||
644: (r = sshbuf_put_string(msg, handle, handle_len)) != 0)
1.137 djm 645: fatal_fr(r, "parse");
1.116 djm 646: send_msg(conn, msg);
1.33 deraadt 647: debug3("Sent message SSH2_FXP_CLOSE I:%u", id);
1.1 djm 648:
1.93 djm 649: status = get_status(conn, id);
1.1 djm 650: if (status != SSH2_FX_OK)
1.161 ! djm 651: error("close remote: %s", fx2txt(status));
1.1 djm 652:
1.116 djm 653: sshbuf_free(msg);
1.1 djm 654:
1.116 djm 655: return status == SSH2_FX_OK ? 0 : -1;
1.1 djm 656: }
657:
1.12 djm 658:
1.17 itojun 659: static int
1.116 djm 660: do_lsreaddir(struct sftp_conn *conn, const char *path, int print_flag,
1.12 djm 661: SFTP_DIRENT ***dir)
1.1 djm 662: {
1.116 djm 663: struct sshbuf *msg;
664: u_int count, id, i, expected_id, ents = 0;
665: size_t handle_len;
1.123 djm 666: u_char type, *handle;
1.111 djm 667: int status = SSH2_FX_FAILURE;
1.116 djm 668: int r;
1.111 djm 669:
670: if (dir)
671: *dir = NULL;
1.1 djm 672:
1.23 djm 673: id = conn->msg_id++;
1.1 djm 674:
1.116 djm 675: if ((msg = sshbuf_new()) == NULL)
1.137 djm 676: fatal_f("sshbuf_new failed");
1.116 djm 677: if ((r = sshbuf_put_u8(msg, SSH2_FXP_OPENDIR)) != 0 ||
678: (r = sshbuf_put_u32(msg, id)) != 0 ||
679: (r = sshbuf_put_cstring(msg, path)) != 0)
1.137 djm 680: fatal_fr(r, "compose OPENDIR");
1.116 djm 681: send_msg(conn, msg);
1.1 djm 682:
1.93 djm 683: handle = get_handle(conn, id, &handle_len,
1.88 djm 684: "remote readdir(\"%s\")", path);
1.96 markus 685: if (handle == NULL) {
1.116 djm 686: sshbuf_free(msg);
1.93 djm 687: return -1;
1.96 markus 688: }
1.1 djm 689:
1.12 djm 690: if (dir) {
691: ents = 0;
1.108 djm 692: *dir = xcalloc(1, sizeof(**dir));
1.12 djm 693: (*dir)[0] = NULL;
694: }
695:
1.49 djm 696: for (; !interrupted;) {
1.23 djm 697: id = expected_id = conn->msg_id++;
1.1 djm 698:
1.33 deraadt 699: debug3("Sending SSH2_FXP_READDIR I:%u", id);
1.1 djm 700:
1.116 djm 701: sshbuf_reset(msg);
702: if ((r = sshbuf_put_u8(msg, SSH2_FXP_READDIR)) != 0 ||
703: (r = sshbuf_put_u32(msg, id)) != 0 ||
704: (r = sshbuf_put_string(msg, handle, handle_len)) != 0)
1.137 djm 705: fatal_fr(r, "compose READDIR");
1.116 djm 706: send_msg(conn, msg);
707:
708: sshbuf_reset(msg);
709:
710: get_msg(conn, msg);
711:
712: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
713: (r = sshbuf_get_u32(msg, &id)) != 0)
1.137 djm 714: fatal_fr(r, "parse");
1.1 djm 715:
1.33 deraadt 716: debug3("Received reply T:%u I:%u", type, id);
1.1 djm 717:
718: if (id != expected_id)
1.33 deraadt 719: fatal("ID mismatch (%u != %u)", id, expected_id);
1.1 djm 720:
721: if (type == SSH2_FXP_STATUS) {
1.116 djm 722: u_int rstatus;
723:
724: if ((r = sshbuf_get_u32(msg, &rstatus)) != 0)
1.137 djm 725: fatal_fr(r, "parse status");
1.116 djm 726: debug3("Received SSH2_FXP_STATUS %d", rstatus);
727: if (rstatus == SSH2_FX_EOF)
1.1 djm 728: break;
1.116 djm 729: error("Couldn't read directory: %s", fx2txt(rstatus));
1.111 djm 730: goto out;
1.1 djm 731: } else if (type != SSH2_FXP_NAME)
1.33 deraadt 732: fatal("Expected SSH2_FXP_NAME(%u) packet, got %u",
1.1 djm 733: SSH2_FXP_NAME, type);
734:
1.116 djm 735: if ((r = sshbuf_get_u32(msg, &count)) != 0)
1.137 djm 736: fatal_fr(r, "parse count");
1.126 djm 737: if (count > SSHBUF_SIZE_MAX)
1.137 djm 738: fatal_f("nonsensical number of entries");
1.7 markus 739: if (count == 0)
740: break;
1.8 stevesk 741: debug3("Received %d SSH2_FXP_NAME responses", count);
1.19 deraadt 742: for (i = 0; i < count; i++) {
1.1 djm 743: char *filename, *longname;
1.116 djm 744: Attrib a;
1.1 djm 745:
1.116 djm 746: if ((r = sshbuf_get_cstring(msg, &filename,
747: NULL)) != 0 ||
748: (r = sshbuf_get_cstring(msg, &longname,
749: NULL)) != 0)
1.137 djm 750: fatal_fr(r, "parse filenames");
1.116 djm 751: if ((r = decode_attrib(msg, &a)) != 0) {
1.137 djm 752: error_fr(r, "couldn't decode attrib");
1.116 djm 753: free(filename);
754: free(longname);
1.135 djm 755: goto out;
1.116 djm 756: }
1.1 djm 757:
1.105 djm 758: if (print_flag)
1.124 schwarze 759: mprintf("%s\n", longname);
1.12 djm 760:
1.89 djm 761: /*
762: * Directory entries should never contain '/'
763: * These can be used to attack recursive ops
764: * (e.g. send '../../../../etc/passwd')
765: */
766: if (strchr(filename, '/') != NULL) {
767: error("Server sent suspect path \"%s\" "
768: "during readdir of \"%s\"", filename, path);
1.111 djm 769: } else if (dir) {
1.118 deraadt 770: *dir = xreallocarray(*dir, ents + 2, sizeof(**dir));
1.108 djm 771: (*dir)[ents] = xcalloc(1, sizeof(***dir));
1.12 djm 772: (*dir)[ents]->filename = xstrdup(filename);
773: (*dir)[ents]->longname = xstrdup(longname);
1.116 djm 774: memcpy(&(*dir)[ents]->a, &a, sizeof(a));
1.12 djm 775: (*dir)[++ents] = NULL;
776: }
1.98 djm 777: free(filename);
778: free(longname);
1.1 djm 779: }
780: }
1.111 djm 781: status = 0;
1.1 djm 782:
1.111 djm 783: out:
1.116 djm 784: sshbuf_free(msg);
1.23 djm 785: do_close(conn, handle, handle_len);
1.98 djm 786: free(handle);
1.1 djm 787:
1.111 djm 788: if (status != 0 && dir != NULL) {
789: /* Don't return results on error */
790: free_sftp_dirents(*dir);
791: *dir = NULL;
792: } else if (interrupted && dir != NULL && *dir != NULL) {
793: /* Don't return partial matches on interrupt */
1.49 djm 794: free_sftp_dirents(*dir);
1.108 djm 795: *dir = xcalloc(1, sizeof(**dir));
1.49 djm 796: **dir = NULL;
797: }
798:
1.129 djm 799: return status == SSH2_FX_OK ? 0 : -1;
1.12 djm 800: }
801:
802: int
1.116 djm 803: do_readdir(struct sftp_conn *conn, const char *path, SFTP_DIRENT ***dir)
1.12 djm 804: {
1.23 djm 805: return(do_lsreaddir(conn, path, 0, dir));
1.12 djm 806: }
807:
808: void free_sftp_dirents(SFTP_DIRENT **s)
809: {
810: int i;
1.19 deraadt 811:
1.111 djm 812: if (s == NULL)
813: return;
1.19 deraadt 814: for (i = 0; s[i]; i++) {
1.98 djm 815: free(s[i]->filename);
816: free(s[i]->longname);
817: free(s[i]);
1.12 djm 818: }
1.98 djm 819: free(s);
1.12 djm 820: }
821:
822: int
1.116 djm 823: do_rm(struct sftp_conn *conn, const char *path)
1.1 djm 824: {
825: u_int status, id;
826:
827: debug2("Sending SSH2_FXP_REMOVE \"%s\"", path);
828:
1.23 djm 829: id = conn->msg_id++;
1.93 djm 830: send_string_request(conn, id, SSH2_FXP_REMOVE, path, strlen(path));
831: status = get_status(conn, id);
1.1 djm 832: if (status != SSH2_FX_OK)
1.161 ! djm 833: error("remote delete %s: %s", path, fx2txt(status));
1.116 djm 834: return status == SSH2_FX_OK ? 0 : -1;
1.1 djm 835: }
836:
837: int
1.116 djm 838: do_mkdir(struct sftp_conn *conn, const char *path, Attrib *a, int print_flag)
1.1 djm 839: {
840: u_int status, id;
841:
1.161 ! djm 842: debug2("Sending SSH2_FXP_MKDIR \"%s\"", path);
! 843:
1.23 djm 844: id = conn->msg_id++;
1.93 djm 845: send_string_attrs_request(conn, id, SSH2_FXP_MKDIR, path,
1.1 djm 846: strlen(path), a);
847:
1.93 djm 848: status = get_status(conn, id);
1.105 djm 849: if (status != SSH2_FX_OK && print_flag)
1.161 ! djm 850: error("remote mkdir \"%s\": %s", path, fx2txt(status));
1.1 djm 851:
1.116 djm 852: return status == SSH2_FX_OK ? 0 : -1;
1.1 djm 853: }
854:
855: int
1.116 djm 856: do_rmdir(struct sftp_conn *conn, const char *path)
1.1 djm 857: {
858: u_int status, id;
859:
1.161 ! djm 860: debug2("Sending SSH2_FXP_RMDIR \"%s\"", path);
! 861:
1.23 djm 862: id = conn->msg_id++;
1.93 djm 863: send_string_request(conn, id, SSH2_FXP_RMDIR, path,
1.23 djm 864: strlen(path));
1.1 djm 865:
1.93 djm 866: status = get_status(conn, id);
1.1 djm 867: if (status != SSH2_FX_OK)
1.161 ! djm 868: error("remote rmdir \"%s\": %s", path, fx2txt(status));
1.1 djm 869:
1.116 djm 870: return status == SSH2_FX_OK ? 0 : -1;
1.1 djm 871: }
872:
873: Attrib *
1.116 djm 874: do_stat(struct sftp_conn *conn, const char *path, int quiet)
1.1 djm 875: {
876: u_int id;
877:
1.161 ! djm 878: debug2("Sending SSH2_FXP_STAT \"%s\"", path);
! 879:
1.23 djm 880: id = conn->msg_id++;
881:
1.93 djm 882: send_string_request(conn, id,
1.28 markus 883: conn->version == 0 ? SSH2_FXP_STAT_VERSION_0 : SSH2_FXP_STAT,
1.23 djm 884: path, strlen(path));
885:
1.93 djm 886: return(get_decode_stat(conn, id, quiet));
1.1 djm 887: }
888:
889: Attrib *
1.116 djm 890: do_lstat(struct sftp_conn *conn, const char *path, int quiet)
1.1 djm 891: {
892: u_int id;
893:
1.23 djm 894: if (conn->version == 0) {
895: if (quiet)
896: debug("Server version does not support lstat operation");
897: else
1.43 itojun 898: logit("Server version does not support lstat operation");
1.30 markus 899: return(do_stat(conn, path, quiet));
1.23 djm 900: }
901:
902: id = conn->msg_id++;
1.93 djm 903: send_string_request(conn, id, SSH2_FXP_LSTAT, path,
1.23 djm 904: strlen(path));
905:
1.93 djm 906: return(get_decode_stat(conn, id, quiet));
1.1 djm 907: }
908:
1.78 chl 909: #ifdef notyet
1.1 djm 910: Attrib *
1.116 djm 911: do_fstat(struct sftp_conn *conn, const u_char *handle, u_int handle_len,
912: int quiet)
1.1 djm 913: {
914: u_int id;
915:
1.161 ! djm 916: debug2("Sending SSH2_FXP_FSTAT \"%s\"");
! 917:
1.23 djm 918: id = conn->msg_id++;
1.93 djm 919: send_string_request(conn, id, SSH2_FXP_FSTAT, handle,
1.23 djm 920: handle_len);
921:
1.93 djm 922: return(get_decode_stat(conn, id, quiet));
1.1 djm 923: }
1.78 chl 924: #endif
1.1 djm 925:
926: int
1.116 djm 927: do_setstat(struct sftp_conn *conn, const char *path, Attrib *a)
1.1 djm 928: {
929: u_int status, id;
930:
1.161 ! djm 931: debug2("Sending SSH2_FXP_SETSTAT \"%s\"", path);
! 932:
1.23 djm 933: id = conn->msg_id++;
1.93 djm 934: send_string_attrs_request(conn, id, SSH2_FXP_SETSTAT, path,
1.1 djm 935: strlen(path), a);
936:
1.93 djm 937: status = get_status(conn, id);
1.1 djm 938: if (status != SSH2_FX_OK)
1.161 ! djm 939: error("remote setstat \"%s\": %s", path, fx2txt(status));
1.1 djm 940:
1.116 djm 941: return status == SSH2_FX_OK ? 0 : -1;
1.1 djm 942: }
943:
944: int
1.116 djm 945: do_fsetstat(struct sftp_conn *conn, const u_char *handle, u_int handle_len,
1.1 djm 946: Attrib *a)
947: {
948: u_int status, id;
949:
1.161 ! djm 950: debug2("Sending SSH2_FXP_FSETSTAT");
! 951:
1.23 djm 952: id = conn->msg_id++;
1.93 djm 953: send_string_attrs_request(conn, id, SSH2_FXP_FSETSTAT, handle,
1.1 djm 954: handle_len, a);
955:
1.93 djm 956: status = get_status(conn, id);
1.1 djm 957: if (status != SSH2_FX_OK)
1.161 ! djm 958: error("remote fsetstat: %s", fx2txt(status));
1.1 djm 959:
1.116 djm 960: return status == SSH2_FX_OK ? 0 : -1;
1.1 djm 961: }
962:
1.154 djm 963: /* Implements both the realpath and expand-path operations */
964: static char *
965: do_realpath_expand(struct sftp_conn *conn, const char *path, int expand)
1.1 djm 966: {
1.116 djm 967: struct sshbuf *msg;
968: u_int expected_id, count, id;
1.1 djm 969: char *filename, *longname;
1.116 djm 970: Attrib a;
971: u_char type;
972: int r;
1.154 djm 973: const char *what = "SSH2_FXP_REALPATH";
1.1 djm 974:
1.154 djm 975: if (expand)
976: what = "expand-path@openssh.com";
1.116 djm 977: if ((msg = sshbuf_new()) == NULL)
1.137 djm 978: fatal_f("sshbuf_new failed");
1.1 djm 979:
1.154 djm 980: expected_id = id = conn->msg_id++;
981: if (expand) {
1.161 ! djm 982: debug2("Sending SSH2_FXP_EXTENDED(expand-path@openssh.com) "
! 983: "\"%s\"", path);
1.154 djm 984: if ((r = sshbuf_put_u8(msg, SSH2_FXP_EXTENDED)) != 0 ||
985: (r = sshbuf_put_u32(msg, id)) != 0 ||
986: (r = sshbuf_put_cstring(msg,
987: "expand-path@openssh.com")) != 0 ||
988: (r = sshbuf_put_cstring(msg, path)) != 0)
989: fatal_fr(r, "compose %s", what);
990: send_msg(conn, msg);
991: } else {
1.161 ! djm 992: debug2("Sending SSH2_FXP_REALPATH \"%s\"", path);
1.154 djm 993: send_string_request(conn, id, SSH2_FXP_REALPATH,
994: path, strlen(path));
995: }
1.116 djm 996: get_msg(conn, msg);
997: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
998: (r = sshbuf_get_u32(msg, &id)) != 0)
1.137 djm 999: fatal_fr(r, "parse");
1.1 djm 1000:
1001: if (id != expected_id)
1.33 deraadt 1002: fatal("ID mismatch (%u != %u)", id, expected_id);
1.1 djm 1003:
1004: if (type == SSH2_FXP_STATUS) {
1.116 djm 1005: u_int status;
1.160 djm 1006: char *errmsg;
1.1 djm 1007:
1.160 djm 1008: if ((r = sshbuf_get_u32(msg, &status)) != 0 ||
1009: (r = sshbuf_get_cstring(msg, &errmsg, NULL)) != 0)
1.137 djm 1010: fatal_fr(r, "parse status");
1.160 djm 1011: error("%s %s: %s", expand ? "expand" : "realpath",
1012: path, *errmsg == '\0' ? fx2txt(status) : errmsg);
1013: free(errmsg);
1.116 djm 1014: sshbuf_free(msg);
1.91 djm 1015: return NULL;
1.1 djm 1016: } else if (type != SSH2_FXP_NAME)
1.33 deraadt 1017: fatal("Expected SSH2_FXP_NAME(%u) packet, got %u",
1.1 djm 1018: SSH2_FXP_NAME, type);
1019:
1.116 djm 1020: if ((r = sshbuf_get_u32(msg, &count)) != 0)
1.137 djm 1021: fatal_fr(r, "parse count");
1.1 djm 1022: if (count != 1)
1.154 djm 1023: fatal("Got multiple names (%d) from %s", count, what);
1.1 djm 1024:
1.116 djm 1025: if ((r = sshbuf_get_cstring(msg, &filename, NULL)) != 0 ||
1026: (r = sshbuf_get_cstring(msg, &longname, NULL)) != 0 ||
1027: (r = decode_attrib(msg, &a)) != 0)
1.137 djm 1028: fatal_fr(r, "parse filename/attrib");
1.1 djm 1029:
1.154 djm 1030: debug3("%s %s -> %s", what, path, filename);
1.1 djm 1031:
1.98 djm 1032: free(longname);
1.1 djm 1033:
1.116 djm 1034: sshbuf_free(msg);
1.1 djm 1035:
1036: return(filename);
1.154 djm 1037: }
1038:
1039: char *
1040: do_realpath(struct sftp_conn *conn, const char *path)
1041: {
1042: return do_realpath_expand(conn, path, 0);
1043: }
1044:
1045: int
1046: can_expand_path(struct sftp_conn *conn)
1047: {
1048: return (conn->exts & SFTP_EXT_PATH_EXPAND) != 0;
1049: }
1050:
1051: char *
1052: do_expand_path(struct sftp_conn *conn, const char *path)
1053: {
1054: if (!can_expand_path(conn)) {
1055: debug3_f("no server support, fallback to realpath");
1056: return do_realpath_expand(conn, path, 0);
1057: }
1058: return do_realpath_expand(conn, path, 1);
1.1 djm 1059: }
1060:
1061: int
1.116 djm 1062: do_rename(struct sftp_conn *conn, const char *oldpath, const char *newpath,
1.102 djm 1063: int force_legacy)
1.1 djm 1064: {
1.116 djm 1065: struct sshbuf *msg;
1.1 djm 1066: u_int status, id;
1.116 djm 1067: int r, use_ext = (conn->exts & SFTP_EXT_POSIX_RENAME) && !force_legacy;
1.1 djm 1068:
1.116 djm 1069: if ((msg = sshbuf_new()) == NULL)
1.137 djm 1070: fatal_f("sshbuf_new failed");
1.1 djm 1071:
1072: /* Send rename request */
1.23 djm 1073: id = conn->msg_id++;
1.102 djm 1074: if (use_ext) {
1.161 ! djm 1075: debug2("Sending SSH2_FXP_EXTENDED(posix-rename@openssh.com) "
! 1076: "\"%s\" to \"%s\"", oldpath, newpath);
1.116 djm 1077: if ((r = sshbuf_put_u8(msg, SSH2_FXP_EXTENDED)) != 0 ||
1078: (r = sshbuf_put_u32(msg, id)) != 0 ||
1079: (r = sshbuf_put_cstring(msg,
1080: "posix-rename@openssh.com")) != 0)
1.137 djm 1081: fatal_fr(r, "compose posix-rename");
1.81 djm 1082: } else {
1.161 ! djm 1083: debug2("Sending SSH2_FXP_RENAME \"%s\" to \"%s\"",
! 1084: oldpath, newpath);
1.116 djm 1085: if ((r = sshbuf_put_u8(msg, SSH2_FXP_RENAME)) != 0 ||
1086: (r = sshbuf_put_u32(msg, id)) != 0)
1.137 djm 1087: fatal_fr(r, "compose rename");
1.116 djm 1088: }
1089: if ((r = sshbuf_put_cstring(msg, oldpath)) != 0 ||
1090: (r = sshbuf_put_cstring(msg, newpath)) != 0)
1.137 djm 1091: fatal_fr(r, "compose paths");
1.116 djm 1092: send_msg(conn, msg);
1.81 djm 1093: debug3("Sent message %s \"%s\" -> \"%s\"",
1.116 djm 1094: use_ext ? "posix-rename@openssh.com" :
1095: "SSH2_FXP_RENAME", oldpath, newpath);
1096: sshbuf_free(msg);
1.1 djm 1097:
1.93 djm 1098: status = get_status(conn, id);
1.1 djm 1099: if (status != SSH2_FX_OK)
1.161 ! djm 1100: error("remote rename \"%s\" to \"%s\": %s", oldpath,
1.94 djm 1101: newpath, fx2txt(status));
1102:
1.116 djm 1103: return status == SSH2_FX_OK ? 0 : -1;
1.94 djm 1104: }
1105:
1106: int
1.116 djm 1107: do_hardlink(struct sftp_conn *conn, const char *oldpath, const char *newpath)
1.94 djm 1108: {
1.116 djm 1109: struct sshbuf *msg;
1.94 djm 1110: u_int status, id;
1.116 djm 1111: int r;
1.94 djm 1112:
1113: if ((conn->exts & SFTP_EXT_HARDLINK) == 0) {
1114: error("Server does not support hardlink@openssh.com extension");
1115: return -1;
1116: }
1.161 ! djm 1117: debug2("Sending SSH2_FXP_EXTENDED(hardlink@openssh.com) "
! 1118: "\"%s\" to \"%s\"", oldpath, newpath);
1.94 djm 1119:
1.116 djm 1120: if ((msg = sshbuf_new()) == NULL)
1.137 djm 1121: fatal_f("sshbuf_new failed");
1.95 markus 1122:
1123: /* Send link request */
1124: id = conn->msg_id++;
1.116 djm 1125: if ((r = sshbuf_put_u8(msg, SSH2_FXP_EXTENDED)) != 0 ||
1126: (r = sshbuf_put_u32(msg, id)) != 0 ||
1127: (r = sshbuf_put_cstring(msg, "hardlink@openssh.com")) != 0 ||
1128: (r = sshbuf_put_cstring(msg, oldpath)) != 0 ||
1129: (r = sshbuf_put_cstring(msg, newpath)) != 0)
1.137 djm 1130: fatal_fr(r, "compose");
1.116 djm 1131: send_msg(conn, msg);
1.94 djm 1132: debug3("Sent message hardlink@openssh.com \"%s\" -> \"%s\"",
1.142 djm 1133: oldpath, newpath);
1.116 djm 1134: sshbuf_free(msg);
1.94 djm 1135:
1136: status = get_status(conn, id);
1137: if (status != SSH2_FX_OK)
1.161 ! djm 1138: error("remote link \"%s\" to \"%s\": %s", oldpath,
1.23 djm 1139: newpath, fx2txt(status));
1.1 djm 1140:
1.116 djm 1141: return status == SSH2_FX_OK ? 0 : -1;
1.11 djm 1142: }
1143:
1144: int
1.116 djm 1145: do_symlink(struct sftp_conn *conn, const char *oldpath, const char *newpath)
1.11 djm 1146: {
1.116 djm 1147: struct sshbuf *msg;
1.11 djm 1148: u_int status, id;
1.116 djm 1149: int r;
1.11 djm 1150:
1.23 djm 1151: if (conn->version < 3) {
1152: error("This server does not support the symlink operation");
1153: return(SSH2_FX_OP_UNSUPPORTED);
1154: }
1.161 ! djm 1155: debug2("Sending SSH2_FXP_SYMLINK \"%s\" to \"%s\"", oldpath, newpath);
1.23 djm 1156:
1.116 djm 1157: if ((msg = sshbuf_new()) == NULL)
1.137 djm 1158: fatal_f("sshbuf_new failed");
1.11 djm 1159:
1.48 djm 1160: /* Send symlink request */
1.23 djm 1161: id = conn->msg_id++;
1.116 djm 1162: if ((r = sshbuf_put_u8(msg, SSH2_FXP_SYMLINK)) != 0 ||
1163: (r = sshbuf_put_u32(msg, id)) != 0 ||
1164: (r = sshbuf_put_cstring(msg, oldpath)) != 0 ||
1165: (r = sshbuf_put_cstring(msg, newpath)) != 0)
1.137 djm 1166: fatal_fr(r, "compose");
1.116 djm 1167: send_msg(conn, msg);
1.11 djm 1168: debug3("Sent message SSH2_FXP_SYMLINK \"%s\" -> \"%s\"", oldpath,
1169: newpath);
1.116 djm 1170: sshbuf_free(msg);
1.11 djm 1171:
1.93 djm 1172: status = get_status(conn, id);
1.11 djm 1173: if (status != SSH2_FX_OK)
1.161 ! djm 1174: error("remote symlink file \"%s\" to \"%s\": %s", oldpath,
1.23 djm 1175: newpath, fx2txt(status));
1.11 djm 1176:
1.116 djm 1177: return status == SSH2_FX_OK ? 0 : -1;
1.11 djm 1178: }
1179:
1.107 djm 1180: int
1.116 djm 1181: do_fsync(struct sftp_conn *conn, u_char *handle, u_int handle_len)
1.107 djm 1182: {
1.116 djm 1183: struct sshbuf *msg;
1.107 djm 1184: u_int status, id;
1.116 djm 1185: int r;
1.107 djm 1186:
1187: /* Silently return if the extension is not supported */
1188: if ((conn->exts & SFTP_EXT_FSYNC) == 0)
1189: return -1;
1.161 ! djm 1190: debug2("Sending SSH2_FXP_EXTENDED(fsync@openssh.com)");
1.107 djm 1191:
1192: /* Send fsync request */
1.116 djm 1193: if ((msg = sshbuf_new()) == NULL)
1.137 djm 1194: fatal_f("sshbuf_new failed");
1.107 djm 1195: id = conn->msg_id++;
1.116 djm 1196: if ((r = sshbuf_put_u8(msg, SSH2_FXP_EXTENDED)) != 0 ||
1197: (r = sshbuf_put_u32(msg, id)) != 0 ||
1198: (r = sshbuf_put_cstring(msg, "fsync@openssh.com")) != 0 ||
1199: (r = sshbuf_put_string(msg, handle, handle_len)) != 0)
1.137 djm 1200: fatal_fr(r, "compose");
1.116 djm 1201: send_msg(conn, msg);
1.107 djm 1202: debug3("Sent message fsync@openssh.com I:%u", id);
1.116 djm 1203: sshbuf_free(msg);
1.107 djm 1204:
1205: status = get_status(conn, id);
1206: if (status != SSH2_FX_OK)
1.161 ! djm 1207: error("remote fsync: %s", fx2txt(status));
1.107 djm 1208:
1.129 djm 1209: return status == SSH2_FX_OK ? 0 : -1;
1.107 djm 1210: }
1211:
1.78 chl 1212: #ifdef notyet
1.11 djm 1213: char *
1.116 djm 1214: do_readlink(struct sftp_conn *conn, const char *path)
1.11 djm 1215: {
1.116 djm 1216: struct sshbuf *msg;
1217: u_int expected_id, count, id;
1.11 djm 1218: char *filename, *longname;
1.116 djm 1219: Attrib a;
1220: u_char type;
1221: int r;
1.11 djm 1222:
1.161 ! djm 1223: debug2("Sending SSH2_FXP_READLINK \"%s\"", path);
! 1224:
1.23 djm 1225: expected_id = id = conn->msg_id++;
1.93 djm 1226: send_string_request(conn, id, SSH2_FXP_READLINK, path, strlen(path));
1.11 djm 1227:
1.116 djm 1228: if ((msg = sshbuf_new()) == NULL)
1.137 djm 1229: fatal_f("sshbuf_new failed");
1.11 djm 1230:
1.116 djm 1231: get_msg(conn, msg);
1232: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
1233: (r = sshbuf_get_u32(msg, &id)) != 0)
1.137 djm 1234: fatal_fr(r, "parse");
1.11 djm 1235:
1236: if (id != expected_id)
1.33 deraadt 1237: fatal("ID mismatch (%u != %u)", id, expected_id);
1.11 djm 1238:
1239: if (type == SSH2_FXP_STATUS) {
1.116 djm 1240: u_int status;
1.11 djm 1241:
1.116 djm 1242: if ((r = sshbuf_get_u32(msg, &status)) != 0)
1.137 djm 1243: fatal_fr(r, "parse status");
1.11 djm 1244: error("Couldn't readlink: %s", fx2txt(status));
1.116 djm 1245: sshbuf_free(msg);
1.11 djm 1246: return(NULL);
1247: } else if (type != SSH2_FXP_NAME)
1.33 deraadt 1248: fatal("Expected SSH2_FXP_NAME(%u) packet, got %u",
1.11 djm 1249: SSH2_FXP_NAME, type);
1250:
1.116 djm 1251: if ((r = sshbuf_get_u32(msg, &count)) != 0)
1.137 djm 1252: fatal_fr(r, "parse count");
1.11 djm 1253: if (count != 1)
1254: fatal("Got multiple names (%d) from SSH_FXP_READLINK", count);
1255:
1.116 djm 1256: if ((r = sshbuf_get_cstring(msg, &filename, NULL)) != 0 ||
1257: (r = sshbuf_get_cstring(msg, &longname, NULL)) != 0 ||
1258: (r = decode_attrib(msg, &a)) != 0)
1.137 djm 1259: fatal_fr(r, "parse filenames/attrib");
1.11 djm 1260:
1261: debug3("SSH_FXP_READLINK %s -> %s", path, filename);
1262:
1.98 djm 1263: free(longname);
1.11 djm 1264:
1.116 djm 1265: sshbuf_free(msg);
1.11 djm 1266:
1.116 djm 1267: return filename;
1.82 djm 1268: }
1269: #endif
1270:
1271: int
1.84 dtucker 1272: do_statvfs(struct sftp_conn *conn, const char *path, struct sftp_statvfs *st,
1.82 djm 1273: int quiet)
1274: {
1.116 djm 1275: struct sshbuf *msg;
1.82 djm 1276: u_int id;
1.116 djm 1277: int r;
1.82 djm 1278:
1279: if ((conn->exts & SFTP_EXT_STATVFS) == 0) {
1280: error("Server does not support statvfs@openssh.com extension");
1281: return -1;
1282: }
1283:
1.161 ! djm 1284: debug2("Sending SSH2_FXP_EXTENDED(statvfs@openssh.com) \"%s\"", path);
! 1285:
1.82 djm 1286: id = conn->msg_id++;
1287:
1.116 djm 1288: if ((msg = sshbuf_new()) == NULL)
1.137 djm 1289: fatal_f("sshbuf_new failed");
1.116 djm 1290: if ((r = sshbuf_put_u8(msg, SSH2_FXP_EXTENDED)) != 0 ||
1291: (r = sshbuf_put_u32(msg, id)) != 0 ||
1292: (r = sshbuf_put_cstring(msg, "statvfs@openssh.com")) != 0 ||
1293: (r = sshbuf_put_cstring(msg, path)) != 0)
1.137 djm 1294: fatal_fr(r, "compose");
1.116 djm 1295: send_msg(conn, msg);
1296: sshbuf_free(msg);
1.82 djm 1297:
1.93 djm 1298: return get_decode_statvfs(conn, st, id, quiet);
1.82 djm 1299: }
1300:
1301: #ifdef notyet
1302: int
1.116 djm 1303: do_fstatvfs(struct sftp_conn *conn, const u_char *handle, u_int handle_len,
1.84 dtucker 1304: struct sftp_statvfs *st, int quiet)
1.82 djm 1305: {
1.116 djm 1306: struct sshbuf *msg;
1.82 djm 1307: u_int id;
1308:
1309: if ((conn->exts & SFTP_EXT_FSTATVFS) == 0) {
1310: error("Server does not support fstatvfs@openssh.com extension");
1311: return -1;
1312: }
1313:
1.161 ! djm 1314: debug2("Sending SSH2_FXP_EXTENDED(fstatvfs@openssh.com)");
! 1315:
1.82 djm 1316: id = conn->msg_id++;
1317:
1.116 djm 1318: if ((msg = sshbuf_new()) == NULL)
1.137 djm 1319: fatal_f("sshbuf_new failed");
1.116 djm 1320: if ((r = sshbuf_put_u8(msg, SSH2_FXP_EXTENDED)) != 0 ||
1321: (r = sshbuf_put_u32(msg, id)) != 0 ||
1322: (r = sshbuf_put_cstring(msg, "fstatvfs@openssh.com")) != 0 ||
1323: (r = sshbuf_put_string(msg, handle, handle_len)) != 0)
1.137 djm 1324: fatal_fr(r, "compose");
1.116 djm 1325: send_msg(conn, msg);
1326: sshbuf_free(msg);
1.82 djm 1327:
1.93 djm 1328: return get_decode_statvfs(conn, st, id, quiet);
1.1 djm 1329: }
1.78 chl 1330: #endif
1.1 djm 1331:
1.131 djm 1332: int
1333: do_lsetstat(struct sftp_conn *conn, const char *path, Attrib *a)
1334: {
1335: struct sshbuf *msg;
1336: u_int status, id;
1337: int r;
1338:
1339: if ((conn->exts & SFTP_EXT_LSETSTAT) == 0) {
1340: error("Server does not support lsetstat@openssh.com extension");
1341: return -1;
1342: }
1343:
1.161 ! djm 1344: debug2("Sending SSH2_FXP_EXTENDED(lsetstat@openssh.com) \"%s\"", path);
! 1345:
1.131 djm 1346: id = conn->msg_id++;
1347: if ((msg = sshbuf_new()) == NULL)
1.137 djm 1348: fatal_f("sshbuf_new failed");
1.131 djm 1349: if ((r = sshbuf_put_u8(msg, SSH2_FXP_EXTENDED)) != 0 ||
1350: (r = sshbuf_put_u32(msg, id)) != 0 ||
1351: (r = sshbuf_put_cstring(msg, "lsetstat@openssh.com")) != 0 ||
1352: (r = sshbuf_put_cstring(msg, path)) != 0 ||
1353: (r = encode_attrib(msg, a)) != 0)
1.137 djm 1354: fatal_fr(r, "compose");
1.131 djm 1355: send_msg(conn, msg);
1356: sshbuf_free(msg);
1357:
1358: status = get_status(conn, id);
1359: if (status != SSH2_FX_OK)
1.161 ! djm 1360: error("remote lsetstat \"%s\": %s", path, fx2txt(status));
1.131 djm 1361:
1362: return status == SSH2_FX_OK ? 0 : -1;
1363: }
1364:
1.21 djm 1365: static void
1.93 djm 1366: send_read_request(struct sftp_conn *conn, u_int id, u_int64_t offset,
1.116 djm 1367: u_int len, const u_char *handle, u_int handle_len)
1.21 djm 1368: {
1.116 djm 1369: struct sshbuf *msg;
1370: int r;
1.28 markus 1371:
1.116 djm 1372: if ((msg = sshbuf_new()) == NULL)
1.137 djm 1373: fatal_f("sshbuf_new failed");
1.116 djm 1374: if ((r = sshbuf_put_u8(msg, SSH2_FXP_READ)) != 0 ||
1375: (r = sshbuf_put_u32(msg, id)) != 0 ||
1376: (r = sshbuf_put_string(msg, handle, handle_len)) != 0 ||
1377: (r = sshbuf_put_u64(msg, offset)) != 0 ||
1378: (r = sshbuf_put_u32(msg, len)) != 0)
1.137 djm 1379: fatal_fr(r, "compose");
1.116 djm 1380: send_msg(conn, msg);
1381: sshbuf_free(msg);
1.28 markus 1382: }
1.21 djm 1383:
1.144 djm 1384: static int
1385: send_open(struct sftp_conn *conn, const char *path, const char *tag,
1386: u_int openmode, Attrib *a, u_char **handlep, size_t *handle_lenp)
1387: {
1388: Attrib junk;
1389: u_char *handle;
1390: size_t handle_len;
1391: struct sshbuf *msg;
1392: int r;
1393: u_int id;
1394:
1.161 ! djm 1395: debug2("Sending SSH2_FXP_OPEN \"%s\"", path);
! 1396:
1.144 djm 1397: *handlep = NULL;
1398: *handle_lenp = 0;
1399:
1400: if (a == NULL) {
1401: attrib_clear(&junk); /* Send empty attributes */
1402: a = &junk;
1403: }
1404: /* Send open request */
1405: if ((msg = sshbuf_new()) == NULL)
1406: fatal_f("sshbuf_new failed");
1407: id = conn->msg_id++;
1408: if ((r = sshbuf_put_u8(msg, SSH2_FXP_OPEN)) != 0 ||
1409: (r = sshbuf_put_u32(msg, id)) != 0 ||
1410: (r = sshbuf_put_cstring(msg, path)) != 0 ||
1411: (r = sshbuf_put_u32(msg, openmode)) != 0 ||
1412: (r = encode_attrib(msg, a)) != 0)
1413: fatal_fr(r, "compose %s open", tag);
1414: send_msg(conn, msg);
1415: sshbuf_free(msg);
1416: debug3("Sent %s message SSH2_FXP_OPEN I:%u P:%s M:0x%04x",
1417: tag, id, path, openmode);
1418: if ((handle = get_handle(conn, id, &handle_len,
1.159 djm 1419: "%s open \"%s\"", tag, path)) == NULL)
1.144 djm 1420: return -1;
1421: /* success */
1422: *handlep = handle;
1423: *handle_lenp = handle_len;
1424: return 0;
1425: }
1426:
1.153 djm 1427: static const char *
1428: progress_meter_path(const char *path)
1429: {
1430: const char *progresspath;
1431:
1432: if ((progresspath = strrchr(path, '/')) == NULL)
1433: return path;
1434: progresspath++;
1435: if (*progresspath == '\0')
1436: return path;
1437: return progresspath;
1438: }
1439:
1.1 djm 1440: int
1.116 djm 1441: do_download(struct sftp_conn *conn, const char *remote_path,
1442: const char *local_path, Attrib *a, int preserve_flag, int resume_flag,
1443: int fsync_flag)
1.1 djm 1444: {
1.116 djm 1445: struct sshbuf *msg;
1446: u_char *handle;
1447: int local_fd = -1, write_error;
1.134 djm 1448: int read_error, write_errno, lmodified = 0, reordered = 0, r;
1.101 djm 1449: u_int64_t offset = 0, size, highwater;
1.116 djm 1450: u_int mode, id, buflen, num_req, max_req, status = SSH2_FX_OK;
1.39 fgsch 1451: off_t progress_counter;
1.116 djm 1452: size_t handle_len;
1.101 djm 1453: struct stat st;
1.146 djm 1454: struct requests requests;
1.21 djm 1455: struct request *req;
1.116 djm 1456: u_char type;
1.21 djm 1457:
1.161 ! djm 1458: debug2_f("download remote \"%s\" to local \"%s\"",
! 1459: remote_path, local_path);
! 1460:
1.21 djm 1461: TAILQ_INIT(&requests);
1.1 djm 1462:
1.89 djm 1463: if (a == NULL && (a = do_stat(conn, remote_path, 0)) == NULL)
1464: return -1;
1.1 djm 1465:
1.86 djm 1466: /* Do not preserve set[ug]id here, as we do not preserve ownership */
1.1 djm 1467: if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
1.38 djm 1468: mode = a->perm & 0777;
1.1 djm 1469: else
1470: mode = 0666;
1471:
1.14 djm 1472: if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
1.41 djm 1473: (!S_ISREG(a->perm))) {
1.161 ! djm 1474: error("download %s: not a regular file", remote_path);
1.14 djm 1475: return(-1);
1476: }
1477:
1.21 djm 1478: if (a->flags & SSH2_FILEXFER_ATTR_SIZE)
1479: size = a->size;
1480: else
1481: size = 0;
1482:
1.141 djm 1483: buflen = conn->download_buflen;
1.1 djm 1484:
1485: /* Send open request */
1.144 djm 1486: if (send_open(conn, remote_path, "remote", SSH2_FXF_READ, NULL,
1487: &handle, &handle_len) != 0)
1488: return -1;
1.1 djm 1489:
1.105 djm 1490: local_fd = open(local_path,
1491: O_WRONLY | O_CREAT | (resume_flag ? 0 : O_TRUNC), mode | S_IWUSR);
1.23 djm 1492: if (local_fd == -1) {
1.161 ! djm 1493: error("open local \"%s\": %s", local_path, strerror(errno));
1.101 djm 1494: goto fail;
1495: }
1496: offset = highwater = 0;
1.105 djm 1497: if (resume_flag) {
1.101 djm 1498: if (fstat(local_fd, &st) == -1) {
1.161 ! djm 1499: error("stat local \"%s\": %s",
1.101 djm 1500: local_path, strerror(errno));
1501: goto fail;
1502: }
1.113 djm 1503: if (st.st_size < 0) {
1504: error("\"%s\" has negative size", local_path);
1505: goto fail;
1506: }
1507: if ((u_int64_t)st.st_size > size) {
1.101 djm 1508: error("Unable to resume download of \"%s\": "
1509: "local file is larger than remote", local_path);
1510: fail:
1511: do_close(conn, handle, handle_len);
1512: free(handle);
1.110 djm 1513: if (local_fd != -1)
1514: close(local_fd);
1.101 djm 1515: return -1;
1516: }
1517: offset = highwater = st.st_size;
1.23 djm 1518: }
1519:
1.1 djm 1520: /* Read from remote and write to local */
1.101 djm 1521: write_error = read_error = write_errno = num_req = 0;
1.21 djm 1522: max_req = 1;
1.101 djm 1523: progress_counter = offset;
1.39 fgsch 1524:
1.153 djm 1525: if (showprogress && size != 0) {
1526: start_progress_meter(progress_meter_path(remote_path),
1527: size, &progress_counter);
1528: }
1.39 fgsch 1529:
1.144 djm 1530: if ((msg = sshbuf_new()) == NULL)
1531: fatal_f("sshbuf_new failed");
1532:
1.21 djm 1533: while (num_req > 0 || max_req > 0) {
1.116 djm 1534: u_char *data;
1535: size_t len;
1.1 djm 1536:
1.49 djm 1537: /*
1.51 deraadt 1538: * Simulate EOF on interrupt: stop sending new requests and
1.49 djm 1539: * allow outstanding requests to drain gracefully
1540: */
1541: if (interrupted) {
1542: if (num_req == 0) /* If we haven't started yet... */
1543: break;
1544: max_req = 0;
1545: }
1546:
1.21 djm 1547: /* Send some more requests */
1548: while (num_req < max_req) {
1.28 markus 1549: debug3("Request range %llu -> %llu (%d/%d)",
1.25 itojun 1550: (unsigned long long)offset,
1551: (unsigned long long)offset + buflen - 1,
1552: num_req, max_req);
1.151 djm 1553: req = request_enqueue(&requests, conn->msg_id++,
1554: buflen, offset);
1.21 djm 1555: offset += buflen;
1556: num_req++;
1.93 djm 1557: send_read_request(conn, req->id, req->offset,
1.21 djm 1558: req->len, handle, handle_len);
1559: }
1.1 djm 1560:
1.116 djm 1561: sshbuf_reset(msg);
1562: get_msg(conn, msg);
1563: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
1564: (r = sshbuf_get_u32(msg, &id)) != 0)
1.137 djm 1565: fatal_fr(r, "parse");
1.33 deraadt 1566: debug3("Received reply T:%u I:%u R:%d", type, id, max_req);
1.21 djm 1567:
1568: /* Find the request in our queue */
1.151 djm 1569: if ((req = request_find(&requests, id)) == NULL)
1.21 djm 1570: fatal("Unexpected reply %u", id);
1571:
1572: switch (type) {
1573: case SSH2_FXP_STATUS:
1.116 djm 1574: if ((r = sshbuf_get_u32(msg, &status)) != 0)
1.137 djm 1575: fatal_fr(r, "parse status");
1.21 djm 1576: if (status != SSH2_FX_EOF)
1577: read_error = 1;
1578: max_req = 0;
1579: TAILQ_REMOVE(&requests, req, tq);
1.98 djm 1580: free(req);
1.21 djm 1581: num_req--;
1582: break;
1583: case SSH2_FXP_DATA:
1.116 djm 1584: if ((r = sshbuf_get_string(msg, &data, &len)) != 0)
1.137 djm 1585: fatal_fr(r, "parse data");
1.26 itojun 1586: debug3("Received data %llu -> %llu",
1.28 markus 1587: (unsigned long long)req->offset,
1.26 itojun 1588: (unsigned long long)req->offset + len - 1);
1.21 djm 1589: if (len > req->len)
1590: fatal("Received more data than asked for "
1.116 djm 1591: "%zu > %zu", len, req->len);
1.134 djm 1592: lmodified = 1;
1.21 djm 1593: if ((lseek(local_fd, req->offset, SEEK_SET) == -1 ||
1.44 deraadt 1594: atomicio(vwrite, local_fd, data, len) != len) &&
1.21 djm 1595: !write_error) {
1596: write_errno = errno;
1597: write_error = 1;
1598: max_req = 0;
1599: }
1.101 djm 1600: else if (!reordered && req->offset <= highwater)
1601: highwater = req->offset + len;
1602: else if (!reordered && req->offset > highwater)
1603: reordered = 1;
1.39 fgsch 1604: progress_counter += len;
1.98 djm 1605: free(data);
1.1 djm 1606:
1.21 djm 1607: if (len == req->len) {
1608: TAILQ_REMOVE(&requests, req, tq);
1.98 djm 1609: free(req);
1.21 djm 1610: num_req--;
1611: } else {
1612: /* Resend the request for the missing data */
1613: debug3("Short data block, re-requesting "
1.26 itojun 1614: "%llu -> %llu (%2d)",
1.28 markus 1615: (unsigned long long)req->offset + len,
1.27 itojun 1616: (unsigned long long)req->offset +
1617: req->len - 1, num_req);
1.23 djm 1618: req->id = conn->msg_id++;
1.21 djm 1619: req->len -= len;
1620: req->offset += len;
1.93 djm 1621: send_read_request(conn, req->id,
1.23 djm 1622: req->offset, req->len, handle, handle_len);
1.21 djm 1623: /* Reduce the request size */
1624: if (len < buflen)
1.125 deraadt 1625: buflen = MAXIMUM(MIN_READ_SIZE, len);
1.21 djm 1626: }
1627: if (max_req > 0) { /* max_req = 0 iff EOF received */
1628: if (size > 0 && offset > size) {
1629: /* Only one request at a time
1630: * after the expected EOF */
1631: debug3("Finish at %llu (%2d)",
1.26 itojun 1632: (unsigned long long)offset,
1633: num_req);
1.21 djm 1634: max_req = 1;
1.136 djm 1635: } else if (max_req < conn->num_requests) {
1.21 djm 1636: ++max_req;
1637: }
1.1 djm 1638: }
1.21 djm 1639: break;
1640: default:
1.33 deraadt 1641: fatal("Expected SSH2_FXP_DATA(%u) packet, got %u",
1.1 djm 1642: SSH2_FXP_DATA, type);
1643: }
1.21 djm 1644: }
1.1 djm 1645:
1.39 fgsch 1646: if (showprogress && size)
1647: stop_progress_meter();
1648:
1.21 djm 1649: /* Sanity check */
1650: if (TAILQ_FIRST(&requests) != NULL)
1651: fatal("Transfer complete, but requests still in queue");
1.101 djm 1652: /* Truncate at highest contiguous point to avoid holes on interrupt */
1653: if (read_error || write_error || interrupted) {
1.105 djm 1654: if (reordered && resume_flag) {
1.101 djm 1655: error("Unable to resume download of \"%s\": "
1656: "server reordered requests", local_path);
1657: }
1658: debug("truncating at %llu", (unsigned long long)highwater);
1.120 djm 1659: if (ftruncate(local_fd, highwater) == -1)
1.161 ! djm 1660: error("local ftruncate \"%s\": %s", local_path,
1.120 djm 1661: strerror(errno));
1.101 djm 1662: }
1.21 djm 1663: if (read_error) {
1.161 ! djm 1664: error("read remote \"%s\" : %s", remote_path, fx2txt(status));
1.103 djm 1665: status = -1;
1.23 djm 1666: do_close(conn, handle, handle_len);
1.21 djm 1667: } else if (write_error) {
1.161 ! djm 1668: error("write local \"%s\": %s", local_path,
1.21 djm 1669: strerror(write_errno));
1.116 djm 1670: status = SSH2_FX_FAILURE;
1.23 djm 1671: do_close(conn, handle, handle_len);
1.21 djm 1672: } else {
1.116 djm 1673: if (do_close(conn, handle, handle_len) != 0 || interrupted)
1674: status = SSH2_FX_FAILURE;
1675: else
1676: status = SSH2_FX_OK;
1.21 djm 1677: /* Override umask and utimes if asked */
1.105 djm 1678: if (preserve_flag && fchmod(local_fd, mode) == -1)
1.161 ! djm 1679: error("local chmod \"%s\": %s", local_path,
1.37 deraadt 1680: strerror(errno));
1.105 djm 1681: if (preserve_flag &&
1682: (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME)) {
1.21 djm 1683: struct timeval tv[2];
1684: tv[0].tv_sec = a->atime;
1685: tv[1].tv_sec = a->mtime;
1686: tv[0].tv_usec = tv[1].tv_usec = 0;
1687: if (utimes(local_path, tv) == -1)
1.161 ! djm 1688: error("local set times \"%s\": %s",
1.37 deraadt 1689: local_path, strerror(errno));
1.1 djm 1690: }
1.134 djm 1691: if (resume_flag && !lmodified)
1692: logit("File \"%s\" was not modified", local_path);
1693: else if (fsync_flag) {
1.107 djm 1694: debug("syncing \"%s\"", local_path);
1695: if (fsync(local_fd) == -1)
1.161 ! djm 1696: error("local sync \"%s\": %s",
1.107 djm 1697: local_path, strerror(errno));
1698: }
1.10 djm 1699: }
1.5 djm 1700: close(local_fd);
1.116 djm 1701: sshbuf_free(msg);
1.98 djm 1702: free(handle);
1.23 djm 1703:
1.129 djm 1704: return status == SSH2_FX_OK ? 0 : -1;
1.1 djm 1705: }
1706:
1.89 djm 1707: static int
1.116 djm 1708: download_dir_internal(struct sftp_conn *conn, const char *src, const char *dst,
1709: int depth, Attrib *dirattrib, int preserve_flag, int print_flag,
1.150 djm 1710: int resume_flag, int fsync_flag, int follow_link_flag)
1.89 djm 1711: {
1712: int i, ret = 0;
1713: SFTP_DIRENT **dir_entries;
1.130 djm 1714: char *filename, *new_src = NULL, *new_dst = NULL;
1.138 dtucker 1715: mode_t mode = 0777, tmpmode = mode;
1.89 djm 1716:
1717: if (depth >= MAX_DIR_DEPTH) {
1718: error("Maximum directory depth exceeded: %d levels", depth);
1719: return -1;
1720: }
1721:
1.161 ! djm 1722: debug2_f("download dir remote \"%s\" to local \"%s\"", src, dst);
! 1723:
1.89 djm 1724: if (dirattrib == NULL &&
1725: (dirattrib = do_stat(conn, src, 1)) == NULL) {
1.161 ! djm 1726: error("stat remote \"%s\" directory failed", src);
1.89 djm 1727: return -1;
1728: }
1729: if (!S_ISDIR(dirattrib->perm)) {
1730: error("\"%s\" is not a directory", src);
1731: return -1;
1732: }
1.147 djm 1733: if (print_flag && print_flag != SFTP_PROGRESS_ONLY)
1.124 schwarze 1734: mprintf("Retrieving %s\n", src);
1.89 djm 1735:
1.138 dtucker 1736: if (dirattrib->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) {
1.89 djm 1737: mode = dirattrib->perm & 01777;
1.138 dtucker 1738: tmpmode = mode | (S_IWUSR|S_IXUSR);
1739: } else {
1.161 ! djm 1740: debug("download remote \"%s\": server "
! 1741: "did not send permissions", dst);
1.89 djm 1742: }
1743:
1.138 dtucker 1744: if (mkdir(dst, tmpmode) == -1 && errno != EEXIST) {
1.89 djm 1745: error("mkdir %s: %s", dst, strerror(errno));
1746: return -1;
1747: }
1748:
1749: if (do_readdir(conn, src, &dir_entries) == -1) {
1.161 ! djm 1750: error("remote readdir \"%s\" failed", src);
1.89 djm 1751: return -1;
1752: }
1753:
1754: for (i = 0; dir_entries[i] != NULL && !interrupted; i++) {
1.130 djm 1755: free(new_dst);
1756: free(new_src);
1757:
1.89 djm 1758: filename = dir_entries[i]->filename;
1759: new_dst = path_append(dst, filename);
1760: new_src = path_append(src, filename);
1761:
1762: if (S_ISDIR(dir_entries[i]->a.perm)) {
1763: if (strcmp(filename, ".") == 0 ||
1764: strcmp(filename, "..") == 0)
1765: continue;
1766: if (download_dir_internal(conn, new_src, new_dst,
1.105 djm 1767: depth + 1, &(dir_entries[i]->a), preserve_flag,
1.150 djm 1768: print_flag, resume_flag,
1769: fsync_flag, follow_link_flag) == -1)
1.89 djm 1770: ret = -1;
1.150 djm 1771: } else if (S_ISREG(dir_entries[i]->a.perm) ||
1772: (follow_link_flag && S_ISLNK(dir_entries[i]->a.perm))) {
1773: /*
1774: * If this is a symlink then don't send the link's
1775: * Attrib. do_download() will do a FXP_STAT operation
1776: * and get the link target's attributes.
1777: */
1.89 djm 1778: if (do_download(conn, new_src, new_dst,
1.150 djm 1779: S_ISLNK(dir_entries[i]->a.perm) ? NULL :
1780: &(dir_entries[i]->a),
1781: preserve_flag, resume_flag, fsync_flag) == -1) {
1.89 djm 1782: error("Download of file %s to %s failed",
1783: new_src, new_dst);
1784: ret = -1;
1785: }
1786: } else
1.161 ! djm 1787: logit("download \"%s\": not a regular file", new_src);
1.89 djm 1788:
1789: }
1.130 djm 1790: free(new_dst);
1791: free(new_src);
1.89 djm 1792:
1.105 djm 1793: if (preserve_flag) {
1.89 djm 1794: if (dirattrib->flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
1795: struct timeval tv[2];
1796: tv[0].tv_sec = dirattrib->atime;
1797: tv[1].tv_sec = dirattrib->mtime;
1798: tv[0].tv_usec = tv[1].tv_usec = 0;
1799: if (utimes(dst, tv) == -1)
1.161 ! djm 1800: error("local set times on \"%s\": %s",
1.89 djm 1801: dst, strerror(errno));
1802: } else
1803: debug("Server did not send times for directory "
1804: "\"%s\"", dst);
1805: }
1806:
1.138 dtucker 1807: if (mode != tmpmode && chmod(dst, mode) == -1)
1.161 ! djm 1808: error("local chmod directory \"%s\": %s", dst,
1.138 dtucker 1809: strerror(errno));
1810:
1.89 djm 1811: free_sftp_dirents(dir_entries);
1812:
1813: return ret;
1814: }
1815:
1816: int
1.116 djm 1817: download_dir(struct sftp_conn *conn, const char *src, const char *dst,
1818: Attrib *dirattrib, int preserve_flag, int print_flag, int resume_flag,
1.150 djm 1819: int fsync_flag, int follow_link_flag)
1.89 djm 1820: {
1821: char *src_canon;
1822: int ret;
1823:
1824: if ((src_canon = do_realpath(conn, src)) == NULL) {
1.161 ! djm 1825: error("download \"%s\": path canonicalization failed", src);
1.89 djm 1826: return -1;
1827: }
1828:
1.105 djm 1829: ret = download_dir_internal(conn, src_canon, dst, 0,
1.150 djm 1830: dirattrib, preserve_flag, print_flag, resume_flag, fsync_flag,
1831: follow_link_flag);
1.98 djm 1832: free(src_canon);
1.89 djm 1833: return ret;
1834: }
1835:
1.1 djm 1836: int
1.116 djm 1837: do_upload(struct sftp_conn *conn, const char *local_path,
1838: const char *remote_path, int preserve_flag, int resume, int fsync_flag)
1.1 djm 1839: {
1.116 djm 1840: int r, local_fd;
1841: u_int status = SSH2_FX_OK;
1842: u_int id;
1843: u_char type;
1.100 dtucker 1844: off_t offset, progress_counter;
1.116 djm 1845: u_char *handle, *data;
1846: struct sshbuf *msg;
1.1 djm 1847: struct stat sb;
1.115 logan 1848: Attrib a, *c = NULL;
1.21 djm 1849: u_int32_t startid;
1850: u_int32_t ackid;
1.151 djm 1851: struct request *ack = NULL;
1852: struct requests acks;
1.116 djm 1853: size_t handle_len;
1.22 djm 1854:
1.161 ! djm 1855: debug2_f("upload local \"%s\" to remote \"%s\"",
! 1856: local_path, remote_path);
! 1857:
1.22 djm 1858: TAILQ_INIT(&acks);
1.1 djm 1859:
1.156 deraadt 1860: if ((local_fd = open(local_path, O_RDONLY)) == -1) {
1.161 ! djm 1861: error("open local \"%s\": %s", local_path, strerror(errno));
1.1 djm 1862: return(-1);
1863: }
1864: if (fstat(local_fd, &sb) == -1) {
1.161 ! djm 1865: error("fstat local \"%s\": %s", local_path, strerror(errno));
1.41 djm 1866: close(local_fd);
1867: return(-1);
1868: }
1869: if (!S_ISREG(sb.st_mode)) {
1.161 ! djm 1870: error("local \"%s\" is not a regular file", local_path);
1.1 djm 1871: close(local_fd);
1872: return(-1);
1873: }
1874: stat_to_attrib(&sb, &a);
1875:
1876: a.flags &= ~SSH2_FILEXFER_ATTR_SIZE;
1877: a.flags &= ~SSH2_FILEXFER_ATTR_UIDGID;
1878: a.perm &= 0777;
1.105 djm 1879: if (!preserve_flag)
1.1 djm 1880: a.flags &= ~SSH2_FILEXFER_ATTR_ACMODTIME;
1881:
1.115 logan 1882: if (resume) {
1883: /* Get remote file size if it exists */
1884: if ((c = do_stat(conn, remote_path, 0)) == NULL) {
1.122 djm 1885: close(local_fd);
1.115 logan 1886: return -1;
1887: }
1888:
1889: if ((off_t)c->size >= sb.st_size) {
1.161 ! djm 1890: error("resume \"%s\": destination file "
! 1891: "same size or larger", local_path);
1.115 logan 1892: close(local_fd);
1893: return -1;
1894: }
1895:
1896: if (lseek(local_fd, (off_t)c->size, SEEK_SET) == -1) {
1897: close(local_fd);
1898: return -1;
1899: }
1900: }
1901:
1.1 djm 1902: /* Send open request */
1.144 djm 1903: if (send_open(conn, remote_path, "dest", SSH2_FXF_WRITE|SSH2_FXF_CREAT|
1904: (resume ? SSH2_FXF_APPEND : SSH2_FXF_TRUNC),
1905: &a, &handle, &handle_len) != 0) {
1.1 djm 1906: close(local_fd);
1.80 djm 1907: return -1;
1.1 djm 1908: }
1909:
1.144 djm 1910: id = conn->msg_id;
1.21 djm 1911: startid = ackid = id + 1;
1.141 djm 1912: data = xmalloc(conn->upload_buflen);
1.20 djm 1913:
1.1 djm 1914: /* Read from local and write to remote */
1.115 logan 1915: offset = progress_counter = (resume ? c->size : 0);
1.153 djm 1916: if (showprogress) {
1917: start_progress_meter(progress_meter_path(local_path),
1918: sb.st_size, &progress_counter);
1919: }
1.39 fgsch 1920:
1.144 djm 1921: if ((msg = sshbuf_new()) == NULL)
1922: fatal_f("sshbuf_new failed");
1.19 deraadt 1923: for (;;) {
1.1 djm 1924: int len;
1925:
1926: /*
1.51 deraadt 1927: * Can't use atomicio here because it returns 0 on EOF,
1.49 djm 1928: * thus losing the last block of the file.
1.51 deraadt 1929: * Simulate an EOF on interrupt, allowing ACKs from the
1.49 djm 1930: * server to drain.
1.1 djm 1931: */
1.80 djm 1932: if (interrupted || status != SSH2_FX_OK)
1.49 djm 1933: len = 0;
1934: else do
1.141 djm 1935: len = read(local_fd, data, conn->upload_buflen);
1.1 djm 1936: while ((len == -1) && (errno == EINTR || errno == EAGAIN));
1937:
1.161 ! djm 1938: if (len == -1) {
! 1939: fatal("read local \"%s\": %s",
! 1940: local_path, strerror(errno));
! 1941: } else if (len != 0) {
1.151 djm 1942: ack = request_enqueue(&acks, ++id, len, offset);
1.116 djm 1943: sshbuf_reset(msg);
1944: if ((r = sshbuf_put_u8(msg, SSH2_FXP_WRITE)) != 0 ||
1945: (r = sshbuf_put_u32(msg, ack->id)) != 0 ||
1946: (r = sshbuf_put_string(msg, handle,
1947: handle_len)) != 0 ||
1948: (r = sshbuf_put_u64(msg, offset)) != 0 ||
1949: (r = sshbuf_put_string(msg, data, len)) != 0)
1.137 djm 1950: fatal_fr(r, "compose");
1.116 djm 1951: send_msg(conn, msg);
1.33 deraadt 1952: debug3("Sent message SSH2_FXP_WRITE I:%u O:%llu S:%u",
1.37 deraadt 1953: id, (unsigned long long)offset, len);
1.22 djm 1954: } else if (TAILQ_FIRST(&acks) == NULL)
1.1 djm 1955: break;
1956:
1.22 djm 1957: if (ack == NULL)
1958: fatal("Unexpected ACK %u", id);
1959:
1.28 markus 1960: if (id == startid || len == 0 ||
1.23 djm 1961: id - ackid >= conn->num_requests) {
1.116 djm 1962: u_int rid;
1.31 djm 1963:
1.116 djm 1964: sshbuf_reset(msg);
1965: get_msg(conn, msg);
1966: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
1967: (r = sshbuf_get_u32(msg, &rid)) != 0)
1.137 djm 1968: fatal_fr(r, "parse");
1.22 djm 1969:
1970: if (type != SSH2_FXP_STATUS)
1971: fatal("Expected SSH2_FXP_STATUS(%d) packet, "
1972: "got %d", SSH2_FXP_STATUS, type);
1973:
1.116 djm 1974: if ((r = sshbuf_get_u32(msg, &status)) != 0)
1.137 djm 1975: fatal_fr(r, "parse status");
1.116 djm 1976: debug3("SSH2_FXP_STATUS %u", status);
1.22 djm 1977:
1978: /* Find the request in our queue */
1.151 djm 1979: if ((ack = request_find(&acks, rid)) == NULL)
1.116 djm 1980: fatal("Can't find request for ID %u", rid);
1.22 djm 1981: TAILQ_REMOVE(&acks, ack, tq);
1.151 djm 1982: debug3("In write loop, ack for %u %zu bytes at %lld",
1983: ack->id, ack->len, (unsigned long long)ack->offset);
1.21 djm 1984: ++ackid;
1.100 dtucker 1985: progress_counter += ack->len;
1.98 djm 1986: free(ack);
1.1 djm 1987: }
1988: offset += len;
1.77 djm 1989: if (offset < 0)
1.137 djm 1990: fatal_f("offset < 0");
1.1 djm 1991: }
1.116 djm 1992: sshbuf_free(msg);
1.80 djm 1993:
1.39 fgsch 1994: if (showprogress)
1995: stop_progress_meter();
1.98 djm 1996: free(data);
1.1 djm 1997:
1.80 djm 1998: if (status != SSH2_FX_OK) {
1.161 ! djm 1999: error("write remote \"%s\": %s", remote_path, fx2txt(status));
1.116 djm 2000: status = SSH2_FX_FAILURE;
1.80 djm 2001: }
2002:
1.1 djm 2003: if (close(local_fd) == -1) {
1.161 ! djm 2004: error("close local \"%s\": %s", local_path, strerror(errno));
1.116 djm 2005: status = SSH2_FX_FAILURE;
1.1 djm 2006: }
2007:
1.10 djm 2008: /* Override umask and utimes if asked */
1.105 djm 2009: if (preserve_flag)
1.23 djm 2010: do_fsetstat(conn, handle, handle_len, &a);
1.10 djm 2011:
1.107 djm 2012: if (fsync_flag)
2013: (void)do_fsync(conn, handle, handle_len);
2014:
1.121 djm 2015: if (do_close(conn, handle, handle_len) != 0)
1.116 djm 2016: status = SSH2_FX_FAILURE;
2017:
1.98 djm 2018: free(handle);
1.5 djm 2019:
1.116 djm 2020: return status == SSH2_FX_OK ? 0 : -1;
1.1 djm 2021: }
1.89 djm 2022:
2023: static int
1.116 djm 2024: upload_dir_internal(struct sftp_conn *conn, const char *src, const char *dst,
1.150 djm 2025: int depth, int preserve_flag, int print_flag, int resume, int fsync_flag,
2026: int follow_link_flag)
1.89 djm 2027: {
1.116 djm 2028: int ret = 0;
1.89 djm 2029: DIR *dirp;
2030: struct dirent *dp;
1.130 djm 2031: char *filename, *new_src = NULL, *new_dst = NULL;
1.89 djm 2032: struct stat sb;
1.121 djm 2033: Attrib a, *dirattrib;
1.138 dtucker 2034: u_int32_t saved_perm;
1.89 djm 2035:
1.161 ! djm 2036: debug2_f("upload local dir \"%s\" to remote \"%s\"", src, dst);
! 2037:
1.89 djm 2038: if (depth >= MAX_DIR_DEPTH) {
2039: error("Maximum directory depth exceeded: %d levels", depth);
2040: return -1;
2041: }
2042:
2043: if (stat(src, &sb) == -1) {
1.161 ! djm 2044: error("stat local \"%s\": %s", src, strerror(errno));
1.89 djm 2045: return -1;
2046: }
2047: if (!S_ISDIR(sb.st_mode)) {
2048: error("\"%s\" is not a directory", src);
2049: return -1;
2050: }
1.147 djm 2051: if (print_flag && print_flag != SFTP_PROGRESS_ONLY)
1.124 schwarze 2052: mprintf("Entering %s\n", src);
1.89 djm 2053:
2054: stat_to_attrib(&sb, &a);
2055: a.flags &= ~SSH2_FILEXFER_ATTR_SIZE;
2056: a.flags &= ~SSH2_FILEXFER_ATTR_UIDGID;
2057: a.perm &= 01777;
1.105 djm 2058: if (!preserve_flag)
1.89 djm 2059: a.flags &= ~SSH2_FILEXFER_ATTR_ACMODTIME;
1.101 djm 2060:
1.89 djm 2061: /*
1.121 djm 2062: * sftp lacks a portable status value to match errno EEXIST,
2063: * so if we get a failure back then we must check whether
1.138 dtucker 2064: * the path already existed and is a directory. Ensure we can
2065: * write to the directory we create for the duration of the transfer.
1.89 djm 2066: */
1.138 dtucker 2067: saved_perm = a.perm;
2068: a.perm |= (S_IWUSR|S_IXUSR);
1.121 djm 2069: if (do_mkdir(conn, dst, &a, 0) != 0) {
2070: if ((dirattrib = do_stat(conn, dst, 0)) == NULL)
1.89 djm 2071: return -1;
1.121 djm 2072: if (!S_ISDIR(dirattrib->perm)) {
2073: error("\"%s\" exists but is not a directory", dst);
1.89 djm 2074: return -1;
1.121 djm 2075: }
1.89 djm 2076: }
1.138 dtucker 2077: a.perm = saved_perm;
1.89 djm 2078:
2079: if ((dirp = opendir(src)) == NULL) {
1.161 ! djm 2080: error("local opendir \"%s\": %s", src, strerror(errno));
1.89 djm 2081: return -1;
2082: }
1.101 djm 2083:
1.89 djm 2084: while (((dp = readdir(dirp)) != NULL) && !interrupted) {
2085: if (dp->d_ino == 0)
2086: continue;
1.130 djm 2087: free(new_dst);
2088: free(new_src);
1.89 djm 2089: filename = dp->d_name;
2090: new_dst = path_append(dst, filename);
2091: new_src = path_append(src, filename);
2092:
1.90 dtucker 2093: if (lstat(new_src, &sb) == -1) {
1.161 ! djm 2094: logit("local lstat \"%s\": %s", filename,
1.90 dtucker 2095: strerror(errno));
2096: ret = -1;
2097: } else if (S_ISDIR(sb.st_mode)) {
1.89 djm 2098: if (strcmp(filename, ".") == 0 ||
2099: strcmp(filename, "..") == 0)
2100: continue;
2101:
2102: if (upload_dir_internal(conn, new_src, new_dst,
1.115 logan 2103: depth + 1, preserve_flag, print_flag, resume,
1.150 djm 2104: fsync_flag, follow_link_flag) == -1)
1.89 djm 2105: ret = -1;
1.150 djm 2106: } else if (S_ISREG(sb.st_mode) ||
2107: (follow_link_flag && S_ISLNK(sb.st_mode))) {
1.105 djm 2108: if (do_upload(conn, new_src, new_dst,
1.115 logan 2109: preserve_flag, resume, fsync_flag) == -1) {
1.161 ! djm 2110: error("upload \"%s\" to \"%s\" failed",
1.89 djm 2111: new_src, new_dst);
2112: ret = -1;
2113: }
2114: } else
1.161 ! djm 2115: logit("%s: not a regular file", filename);
1.89 djm 2116: }
1.130 djm 2117: free(new_dst);
2118: free(new_src);
1.89 djm 2119:
2120: do_setstat(conn, dst, &a);
2121:
2122: (void) closedir(dirp);
2123: return ret;
2124: }
2125:
2126: int
1.116 djm 2127: upload_dir(struct sftp_conn *conn, const char *src, const char *dst,
1.150 djm 2128: int preserve_flag, int print_flag, int resume, int fsync_flag,
2129: int follow_link_flag)
1.89 djm 2130: {
2131: char *dst_canon;
2132: int ret;
2133:
2134: if ((dst_canon = do_realpath(conn, dst)) == NULL) {
1.161 ! djm 2135: error("upload \"%s\": path canonicalization failed", dst);
1.89 djm 2136: return -1;
2137: }
2138:
1.106 djm 2139: ret = upload_dir_internal(conn, src, dst_canon, 0, preserve_flag,
1.150 djm 2140: print_flag, resume, fsync_flag, follow_link_flag);
1.107 djm 2141:
1.98 djm 2142: free(dst_canon);
1.145 djm 2143: return ret;
2144: }
2145:
2146: static void
2147: handle_dest_replies(struct sftp_conn *to, const char *to_path, int synchronous,
2148: u_int *nreqsp, u_int *write_errorp)
2149: {
2150: struct sshbuf *msg;
2151: u_char type;
2152: u_int id, status;
2153: int r;
2154: struct pollfd pfd;
2155:
2156: if ((msg = sshbuf_new()) == NULL)
2157: fatal_f("sshbuf_new failed");
2158:
2159: /* Try to eat replies from the upload side */
2160: while (*nreqsp > 0) {
2161: debug3_f("%u outstanding replies", *nreqsp);
2162: if (!synchronous) {
2163: /* Bail out if no data is ready to be read */
2164: pfd.fd = to->fd_in;
2165: pfd.events = POLLIN;
2166: if ((r = poll(&pfd, 1, 0)) == -1) {
2167: if (errno == EINTR)
2168: break;
2169: fatal_f("poll: %s", strerror(errno));
2170: } else if (r == 0)
2171: break; /* fd not ready */
2172: }
2173: sshbuf_reset(msg);
2174: get_msg(to, msg);
2175:
2176: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
2177: (r = sshbuf_get_u32(msg, &id)) != 0)
2178: fatal_fr(r, "dest parse");
2179: debug3("Received dest reply T:%u I:%u R:%u", type, id, *nreqsp);
2180: if (type != SSH2_FXP_STATUS) {
2181: fatal_f("Expected SSH2_FXP_STATUS(%d) packet, got %d",
2182: SSH2_FXP_STATUS, type);
2183: }
2184: if ((r = sshbuf_get_u32(msg, &status)) != 0)
2185: fatal_fr(r, "parse dest status");
2186: debug3("dest SSH2_FXP_STATUS %u", status);
2187: if (status != SSH2_FX_OK) {
2188: /* record first error */
2189: if (*write_errorp == 0)
2190: *write_errorp = status;
2191: }
2192: /*
2193: * XXX this doesn't do full reply matching like do_upload and
2194: * so cannot gracefully truncate terminated uploads at a
2195: * high-water mark. ATM the only caller of this function (scp)
2196: * doesn't support transfer resumption, so this doesn't matter
2197: * a whole lot.
2198: *
2199: * To be safe, do_crossload truncates the destination file to
2200: * zero length on upload failure, since we can't trust the
2201: * server not to have reordered replies that could have
2202: * inserted holes where none existed in the source file.
2203: *
2204: * XXX we could get a more accutate progress bar if we updated
2205: * the counter based on the reply from the destination...
2206: */
2207: (*nreqsp)--;
2208: }
2209: debug3_f("done: %u outstanding replies", *nreqsp);
1.157 dtucker 2210: sshbuf_free(msg);
1.145 djm 2211: }
2212:
2213: int
2214: do_crossload(struct sftp_conn *from, struct sftp_conn *to,
2215: const char *from_path, const char *to_path,
2216: Attrib *a, int preserve_flag)
2217: {
2218: struct sshbuf *msg;
1.152 djm 2219: int write_error, read_error, r;
1.145 djm 2220: u_int64_t offset = 0, size;
2221: u_int id, buflen, num_req, max_req, status = SSH2_FX_OK;
2222: u_int num_upload_req;
2223: off_t progress_counter;
2224: u_char *from_handle, *to_handle;
2225: size_t from_handle_len, to_handle_len;
1.146 djm 2226: struct requests requests;
1.145 djm 2227: struct request *req;
2228: u_char type;
2229:
1.161 ! djm 2230: debug2_f("crossload src \"%s\" to dst \"%s\"", from_path, to_path);
! 2231:
1.145 djm 2232: TAILQ_INIT(&requests);
2233:
2234: if (a == NULL && (a = do_stat(from, from_path, 0)) == NULL)
2235: return -1;
2236:
2237: if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
2238: (!S_ISREG(a->perm))) {
1.161 ! djm 2239: error("download \"%s\": not a regular file", from_path);
1.145 djm 2240: return(-1);
2241: }
2242: if (a->flags & SSH2_FILEXFER_ATTR_SIZE)
2243: size = a->size;
2244: else
2245: size = 0;
2246:
2247: buflen = from->download_buflen;
2248: if (buflen > to->upload_buflen)
2249: buflen = to->upload_buflen;
2250:
2251: /* Send open request to read side */
2252: if (send_open(from, from_path, "origin", SSH2_FXF_READ, NULL,
2253: &from_handle, &from_handle_len) != 0)
2254: return -1;
2255:
2256: /* Send open request to write side */
2257: a->flags &= ~SSH2_FILEXFER_ATTR_SIZE;
2258: a->flags &= ~SSH2_FILEXFER_ATTR_UIDGID;
2259: a->perm &= 0777;
2260: if (!preserve_flag)
2261: a->flags &= ~SSH2_FILEXFER_ATTR_ACMODTIME;
2262: if (send_open(to, to_path, "dest",
2263: SSH2_FXF_WRITE|SSH2_FXF_CREAT|SSH2_FXF_TRUNC, a,
2264: &to_handle, &to_handle_len) != 0) {
2265: do_close(from, from_handle, from_handle_len);
2266: return -1;
2267: }
2268:
2269: /* Read from remote "from" and write to remote "to" */
2270: offset = 0;
2271: write_error = read_error = num_req = num_upload_req = 0;
2272: max_req = 1;
2273: progress_counter = 0;
2274:
1.153 djm 2275: if (showprogress && size != 0) {
2276: start_progress_meter(progress_meter_path(from_path),
2277: size, &progress_counter);
2278: }
1.145 djm 2279: if ((msg = sshbuf_new()) == NULL)
2280: fatal_f("sshbuf_new failed");
2281: while (num_req > 0 || max_req > 0) {
2282: u_char *data;
2283: size_t len;
2284:
2285: /*
2286: * Simulate EOF on interrupt: stop sending new requests and
2287: * allow outstanding requests to drain gracefully
2288: */
2289: if (interrupted) {
2290: if (num_req == 0) /* If we haven't started yet... */
2291: break;
2292: max_req = 0;
2293: }
2294:
2295: /* Send some more requests */
2296: while (num_req < max_req) {
2297: debug3("Request range %llu -> %llu (%d/%d)",
2298: (unsigned long long)offset,
2299: (unsigned long long)offset + buflen - 1,
2300: num_req, max_req);
1.151 djm 2301: req = request_enqueue(&requests, from->msg_id++,
2302: buflen, offset);
1.145 djm 2303: offset += buflen;
2304: num_req++;
2305: send_read_request(from, req->id, req->offset,
2306: req->len, from_handle, from_handle_len);
2307: }
2308:
2309: /* Try to eat replies from the upload side (nonblocking) */
2310: handle_dest_replies(to, to_path, 0,
2311: &num_upload_req, &write_error);
2312:
2313: sshbuf_reset(msg);
2314: get_msg(from, msg);
2315: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
2316: (r = sshbuf_get_u32(msg, &id)) != 0)
2317: fatal_fr(r, "parse");
2318: debug3("Received origin reply T:%u I:%u R:%d",
2319: type, id, max_req);
2320:
2321: /* Find the request in our queue */
1.151 djm 2322: if ((req = request_find(&requests, id)) == NULL)
1.145 djm 2323: fatal("Unexpected reply %u", id);
2324:
2325: switch (type) {
2326: case SSH2_FXP_STATUS:
2327: if ((r = sshbuf_get_u32(msg, &status)) != 0)
2328: fatal_fr(r, "parse status");
2329: if (status != SSH2_FX_EOF)
2330: read_error = 1;
2331: max_req = 0;
2332: TAILQ_REMOVE(&requests, req, tq);
2333: free(req);
2334: num_req--;
2335: break;
2336: case SSH2_FXP_DATA:
2337: if ((r = sshbuf_get_string(msg, &data, &len)) != 0)
2338: fatal_fr(r, "parse data");
2339: debug3("Received data %llu -> %llu",
2340: (unsigned long long)req->offset,
2341: (unsigned long long)req->offset + len - 1);
2342: if (len > req->len)
2343: fatal("Received more data than asked for "
2344: "%zu > %zu", len, req->len);
2345:
2346: /* Write this chunk out to the destination */
2347: sshbuf_reset(msg);
2348: if ((r = sshbuf_put_u8(msg, SSH2_FXP_WRITE)) != 0 ||
2349: (r = sshbuf_put_u32(msg, to->msg_id++)) != 0 ||
2350: (r = sshbuf_put_string(msg, to_handle,
2351: to_handle_len)) != 0 ||
2352: (r = sshbuf_put_u64(msg, req->offset)) != 0 ||
2353: (r = sshbuf_put_string(msg, data, len)) != 0)
2354: fatal_fr(r, "compose write");
2355: send_msg(to, msg);
2356: debug3("Sent message SSH2_FXP_WRITE I:%u O:%llu S:%zu",
2357: id, (unsigned long long)offset, len);
2358: num_upload_req++;
2359: progress_counter += len;
2360: free(data);
2361:
2362: if (len == req->len) {
2363: TAILQ_REMOVE(&requests, req, tq);
2364: free(req);
2365: num_req--;
2366: } else {
2367: /* Resend the request for the missing data */
2368: debug3("Short data block, re-requesting "
2369: "%llu -> %llu (%2d)",
2370: (unsigned long long)req->offset + len,
2371: (unsigned long long)req->offset +
2372: req->len - 1, num_req);
2373: req->id = from->msg_id++;
2374: req->len -= len;
2375: req->offset += len;
2376: send_read_request(from, req->id,
2377: req->offset, req->len,
2378: from_handle, from_handle_len);
2379: /* Reduce the request size */
2380: if (len < buflen)
2381: buflen = MAXIMUM(MIN_READ_SIZE, len);
2382: }
2383: if (max_req > 0) { /* max_req = 0 iff EOF received */
2384: if (size > 0 && offset > size) {
2385: /* Only one request at a time
2386: * after the expected EOF */
2387: debug3("Finish at %llu (%2d)",
2388: (unsigned long long)offset,
2389: num_req);
2390: max_req = 1;
2391: } else if (max_req < from->num_requests) {
2392: ++max_req;
2393: }
2394: }
2395: break;
2396: default:
2397: fatal("Expected SSH2_FXP_DATA(%u) packet, got %u",
2398: SSH2_FXP_DATA, type);
2399: }
2400: }
2401:
2402: if (showprogress && size)
2403: stop_progress_meter();
2404:
2405: /* Drain replies from the server (blocking) */
2406: debug3_f("waiting for %u replies from destination", num_upload_req);
2407: handle_dest_replies(to, to_path, 1, &num_upload_req, &write_error);
2408:
2409: /* Sanity check */
2410: if (TAILQ_FIRST(&requests) != NULL)
2411: fatal("Transfer complete, but requests still in queue");
2412: /* Truncate at 0 length on interrupt or error to avoid holes at dest */
2413: if (read_error || write_error || interrupted) {
2414: debug("truncating \"%s\" at 0", to_path);
2415: do_close(to, to_handle, to_handle_len);
2416: free(to_handle);
2417: if (send_open(to, to_path, "dest",
2418: SSH2_FXF_WRITE|SSH2_FXF_CREAT|SSH2_FXF_TRUNC, a,
2419: &to_handle, &to_handle_len) != 0) {
1.161 ! djm 2420: error("dest truncate \"%s\" failed", to_path);
1.145 djm 2421: to_handle = NULL;
2422: }
2423: }
2424: if (read_error) {
1.161 ! djm 2425: error("read origin \"%s\": %s", from_path, fx2txt(status));
1.145 djm 2426: status = -1;
2427: do_close(from, from_handle, from_handle_len);
2428: if (to_handle != NULL)
2429: do_close(to, to_handle, to_handle_len);
2430: } else if (write_error) {
1.161 ! djm 2431: error("write dest \"%s\": %s", to_path, fx2txt(write_error));
1.145 djm 2432: status = SSH2_FX_FAILURE;
2433: do_close(from, from_handle, from_handle_len);
2434: if (to_handle != NULL)
2435: do_close(to, to_handle, to_handle_len);
2436: } else {
2437: if (do_close(from, from_handle, from_handle_len) != 0 ||
2438: interrupted)
2439: status = -1;
2440: else
2441: status = SSH2_FX_OK;
2442: if (to_handle != NULL) {
2443: /* Need to resend utimes after write */
2444: if (preserve_flag)
2445: do_fsetstat(to, to_handle, to_handle_len, a);
2446: do_close(to, to_handle, to_handle_len);
2447: }
2448: }
2449: sshbuf_free(msg);
2450: free(from_handle);
2451: free(to_handle);
2452:
2453: return status == SSH2_FX_OK ? 0 : -1;
2454: }
2455:
2456: static int
2457: crossload_dir_internal(struct sftp_conn *from, struct sftp_conn *to,
2458: const char *from_path, const char *to_path,
1.150 djm 2459: int depth, Attrib *dirattrib, int preserve_flag, int print_flag,
2460: int follow_link_flag)
1.145 djm 2461: {
2462: int i, ret = 0;
2463: SFTP_DIRENT **dir_entries;
2464: char *filename, *new_from_path = NULL, *new_to_path = NULL;
2465: mode_t mode = 0777;
1.149 djm 2466: Attrib curdir;
1.145 djm 2467:
1.161 ! djm 2468: debug2_f("crossload dir src \"%s\" to dst \"%s\"", from_path, to_path);
! 2469:
1.145 djm 2470: if (depth >= MAX_DIR_DEPTH) {
2471: error("Maximum directory depth exceeded: %d levels", depth);
2472: return -1;
2473: }
2474:
2475: if (dirattrib == NULL &&
2476: (dirattrib = do_stat(from, from_path, 1)) == NULL) {
1.161 ! djm 2477: error("stat remote \"%s\" failed", from_path);
1.145 djm 2478: return -1;
2479: }
2480: if (!S_ISDIR(dirattrib->perm)) {
2481: error("\"%s\" is not a directory", from_path);
2482: return -1;
2483: }
1.150 djm 2484: if (print_flag && print_flag != SFTP_PROGRESS_ONLY)
1.145 djm 2485: mprintf("Retrieving %s\n", from_path);
2486:
1.149 djm 2487: curdir = *dirattrib; /* dirattrib will be clobbered */
2488: curdir.flags &= ~SSH2_FILEXFER_ATTR_SIZE;
2489: curdir.flags &= ~SSH2_FILEXFER_ATTR_UIDGID;
2490: if ((curdir.flags & SSH2_FILEXFER_ATTR_PERMISSIONS) == 0) {
2491: debug("Origin did not send permissions for "
1.145 djm 2492: "directory \"%s\"", to_path);
1.149 djm 2493: curdir.perm = S_IWUSR|S_IXUSR;
2494: curdir.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1.145 djm 2495: }
1.149 djm 2496: /* We need to be able to write to the directory while we transfer it */
2497: mode = curdir.perm & 01777;
2498: curdir.perm = mode | (S_IWUSR|S_IXUSR);
2499:
2500: /*
2501: * sftp lacks a portable status value to match errno EEXIST,
2502: * so if we get a failure back then we must check whether
2503: * the path already existed and is a directory. Ensure we can
2504: * write to the directory we create for the duration of the transfer.
2505: */
2506: if (do_mkdir(to, to_path, &curdir, 0) != 0) {
2507: if ((dirattrib = do_stat(to, to_path, 0)) == NULL)
2508: return -1;
2509: if (!S_ISDIR(dirattrib->perm)) {
2510: error("\"%s\" exists but is not a directory", to_path);
2511: return -1;
2512: }
2513: }
2514: curdir.perm = mode;
1.145 djm 2515:
2516: if (do_readdir(from, from_path, &dir_entries) == -1) {
1.161 ! djm 2517: error("origin readdir \"%s\" failed", from_path);
1.145 djm 2518: return -1;
2519: }
2520:
2521: for (i = 0; dir_entries[i] != NULL && !interrupted; i++) {
2522: free(new_from_path);
2523: free(new_to_path);
2524:
2525: filename = dir_entries[i]->filename;
2526: new_from_path = path_append(from_path, filename);
2527: new_to_path = path_append(to_path, filename);
2528:
2529: if (S_ISDIR(dir_entries[i]->a.perm)) {
2530: if (strcmp(filename, ".") == 0 ||
2531: strcmp(filename, "..") == 0)
2532: continue;
2533: if (crossload_dir_internal(from, to,
2534: new_from_path, new_to_path,
2535: depth + 1, &(dir_entries[i]->a), preserve_flag,
1.150 djm 2536: print_flag, follow_link_flag) == -1)
1.145 djm 2537: ret = -1;
1.150 djm 2538: } else if (S_ISREG(dir_entries[i]->a.perm) ||
2539: (follow_link_flag && S_ISLNK(dir_entries[i]->a.perm))) {
2540: /*
2541: * If this is a symlink then don't send the link's
2542: * Attrib. do_download() will do a FXP_STAT operation
2543: * and get the link target's attributes.
2544: */
1.145 djm 2545: if (do_crossload(from, to, new_from_path, new_to_path,
1.150 djm 2546: S_ISLNK(dir_entries[i]->a.perm) ? NULL :
1.145 djm 2547: &(dir_entries[i]->a), preserve_flag) == -1) {
1.161 ! djm 2548: error("crossload \"%s\" to \"%s\" failed",
1.145 djm 2549: new_from_path, new_to_path);
2550: ret = -1;
2551: }
1.161 ! djm 2552: } else {
! 2553: logit("origin \"%s\": not a regular file",
! 2554: new_from_path);
! 2555: }
1.145 djm 2556: }
2557: free(new_to_path);
2558: free(new_from_path);
2559:
1.149 djm 2560: do_setstat(to, to_path, &curdir);
1.145 djm 2561:
2562: free_sftp_dirents(dir_entries);
2563:
2564: return ret;
2565: }
2566:
2567: int
2568: crossload_dir(struct sftp_conn *from, struct sftp_conn *to,
2569: const char *from_path, const char *to_path,
1.150 djm 2570: Attrib *dirattrib, int preserve_flag, int print_flag, int follow_link_flag)
1.145 djm 2571: {
2572: char *from_path_canon;
2573: int ret;
2574:
2575: if ((from_path_canon = do_realpath(from, from_path)) == NULL) {
1.161 ! djm 2576: error("crossload \"%s\": path canonicalization failed",
! 2577: from_path);
1.145 djm 2578: return -1;
2579: }
2580:
2581: ret = crossload_dir_internal(from, to, from_path_canon, to_path, 0,
1.150 djm 2582: dirattrib, preserve_flag, print_flag, follow_link_flag);
1.145 djm 2583: free(from_path_canon);
1.89 djm 2584: return ret;
2585: }
2586:
2587: char *
1.116 djm 2588: path_append(const char *p1, const char *p2)
1.89 djm 2589: {
2590: char *ret;
2591: size_t len = strlen(p1) + strlen(p2) + 2;
2592:
2593: ret = xmalloc(len);
2594: strlcpy(ret, p1, len);
2595: if (p1[0] != '\0' && p1[strlen(p1) - 1] != '/')
2596: strlcat(ret, "/", len);
2597: strlcat(ret, p2, len);
2598:
2599: return(ret);
1.139 djm 2600: }
2601:
2602: char *
2603: make_absolute(char *p, const char *pwd)
2604: {
2605: char *abs_str;
2606:
2607: /* Derelativise */
2608: if (p && !path_absolute(p)) {
2609: abs_str = path_append(pwd, p);
2610: free(p);
2611: return(abs_str);
2612: } else
2613: return(p);
2614: }
2615:
2616: int
2617: remote_is_dir(struct sftp_conn *conn, const char *path)
2618: {
2619: Attrib *a;
2620:
2621: /* XXX: report errors? */
2622: if ((a = do_stat(conn, path, 1)) == NULL)
2623: return(0);
2624: if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS))
2625: return(0);
2626: return(S_ISDIR(a->perm));
2627: }
2628:
2629:
2630: int
2631: local_is_dir(const char *path)
2632: {
2633: struct stat sb;
2634:
2635: /* XXX: report errors? */
2636: if (stat(path, &sb) == -1)
2637: return(0);
2638:
2639: return(S_ISDIR(sb.st_mode));
2640: }
2641:
2642: /* Check whether path returned from glob(..., GLOB_MARK, ...) is a directory */
2643: int
2644: globpath_is_dir(const char *pathname)
2645: {
2646: size_t l = strlen(pathname);
2647:
2648: return l > 0 && pathname[l - 1] == '/';
1.89 djm 2649: }
2650:
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