blob: ef9eaa1a41146ecba1fb9a940b342402c2ce1b69 [file] [log] [blame]
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001/*
Damien Millere4340be2000-09-16 13:29:08 +11002 * scp - secure remote copy. This is basically patched BSD rcp which
3 * uses ssh to do the data transfer (instead of using rcmd).
Damien Miller4af51302000-04-16 11:18:38 +10004 *
Damien Millere4340be2000-09-16 13:29:08 +11005 * NOTE: This version should NOT be suid root. (This uses ssh to
6 * do the transfer and ssh has the necessary privileges.)
Damien Miller4af51302000-04-16 11:18:38 +10007 *
Damien Miller95def091999-11-25 00:26:21 +11008 * 1995 Timo Rinne <tri@iki.fi>, Tatu Ylonen <ylo@cs.hut.fi>
Damien Miller4af51302000-04-16 11:18:38 +10009 *
Damien Millere4340be2000-09-16 13:29:08 +110010 * As far as I am concerned, the code I have written for this software
11 * can be used freely for any purpose. Any derived versions of this
12 * software must be clearly marked as such, and if the derived work is
13 * incompatible with the protocol description in the RFC file, it must be
14 * called by a name other than "ssh" or "Secure Shell".
15 */
16/*
Ben Lindstrom92a2e382001-03-05 06:59:27 +000017 * Copyright (c) 1999 Theo de Raadt. All rights reserved.
18 * Copyright (c) 1999 Aaron Campbell. All rights reserved.
Damien Millere4340be2000-09-16 13:29:08 +110019 *
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions
22 * are met:
23 * 1. Redistributions of source code must retain the above copyright
24 * notice, this list of conditions and the following disclaimer.
25 * 2. Redistributions in binary form must reproduce the above copyright
26 * notice, this list of conditions and the following disclaimer in the
27 * documentation and/or other materials provided with the distribution.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
30 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
31 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
32 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
33 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
34 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
38 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100040
41/*
Damien Millerad833b32000-08-23 10:46:23 +100042 * Parts from:
43 *
Damien Millerd4a8b7e1999-10-27 13:42:43 +100044 * Copyright (c) 1983, 1990, 1992, 1993, 1995
45 * The Regents of the University of California. All rights reserved.
46 *
47 * Redistribution and use in source and binary forms, with or without
48 * modification, are permitted provided that the following conditions
49 * are met:
50 * 1. Redistributions of source code must retain the above copyright
51 * notice, this list of conditions and the following disclaimer.
52 * 2. Redistributions in binary form must reproduce the above copyright
53 * notice, this list of conditions and the following disclaimer in the
54 * documentation and/or other materials provided with the distribution.
Damien Millerdafb12e2003-06-03 13:06:18 +100055 * 3. Neither the name of the University nor the names of its contributors
Damien Millerd4a8b7e1999-10-27 13:42:43 +100056 * may be used to endorse or promote products derived from this software
57 * without specific prior written permission.
58 *
59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
69 * SUCH DAMAGE.
70 *
Damien Millerd4a8b7e1999-10-27 13:42:43 +100071 */
72
73#include "includes.h"
Darren Tuckerfe6649d2004-08-13 21:19:37 +100074RCSID("$OpenBSD: scp.c,v 1.117 2004/08/11 21:44:32 avsm Exp $");
Damien Millerd4a8b7e1999-10-27 13:42:43 +100075
Damien Millerd4a8b7e1999-10-27 13:42:43 +100076#include "xmalloc.h"
Ben Lindstrom226cfa02001-01-22 05:34:40 +000077#include "atomicio.h"
78#include "pathnames.h"
79#include "log.h"
Kevin Steves93c17d92001-02-18 03:55:16 +000080#include "misc.h"
Damien Miller62d57f62003-01-10 21:43:24 +110081#include "progressmeter.h"
Damien Millerd4a8b7e1999-10-27 13:42:43 +100082
Ben Lindstrom49a79c02000-11-17 03:47:20 +000083extern char *__progname;
Ben Lindstrom49a79c02000-11-17 03:47:20 +000084
Damien Millerff74d742003-01-24 11:36:58 +110085void bwlimit(int);
86
Ben Lindstrom387c4722001-05-08 20:27:25 +000087/* Struct for addargs */
88arglist args;
Damien Miller874d77b2000-10-14 16:23:11 +110089
Damien Millerff74d742003-01-24 11:36:58 +110090/* Bandwidth limit */
Damien Miller4da295c2003-11-22 14:39:04 +110091off_t limit_rate = 0;
Damien Millerff74d742003-01-24 11:36:58 +110092
Damien Millerd4a8b7e1999-10-27 13:42:43 +100093/* Name of current file being transferred. */
94char *curfile;
95
96/* This is set to non-zero to enable verbose mode. */
Damien Miller95def091999-11-25 00:26:21 +110097int verbose_mode = 0;
Damien Millerd4a8b7e1999-10-27 13:42:43 +100098
Damien Millerd4a8b7e1999-10-27 13:42:43 +100099/* This is set to zero if the progressmeter is not desired. */
100int showprogress = 1;
101
Damien Millerad833b32000-08-23 10:46:23 +1000102/* This is the program to execute for the secured connection. ("ssh" or -S) */
Ben Lindstrom226cfa02001-01-22 05:34:40 +0000103char *ssh_program = _PATH_SSH_PROGRAM;
Damien Millerad833b32000-08-23 10:46:23 +1000104
Ben Lindstrom007eb912002-11-09 15:54:08 +0000105/* This is used to store the pid of ssh_program */
Damien Millerb69aaa82003-06-04 22:51:24 +1000106pid_t do_cmd_pid = -1;
107
108static void
109killchild(int signo)
110{
111 if (do_cmd_pid > 1)
112 kill(do_cmd_pid, signo);
113
114 _exit(1);
115}
Ben Lindstrom007eb912002-11-09 15:54:08 +0000116
Damien Miller5428f641999-11-25 11:54:57 +1100117/*
118 * This function executes the given command as the specified user on the
119 * given host. This returns < 0 if execution fails, and >= 0 otherwise. This
120 * assigns the input and output file descriptors on success.
121 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000122
Damien Miller4af51302000-04-16 11:18:38 +1000123int
Damien Millerad833b32000-08-23 10:46:23 +1000124do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000125{
Damien Miller95def091999-11-25 00:26:21 +1100126 int pin[2], pout[2], reserved[2];
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000127
Damien Miller95def091999-11-25 00:26:21 +1100128 if (verbose_mode)
Ben Lindstrom2772a3f2001-08-06 21:17:12 +0000129 fprintf(stderr,
130 "Executing: program %s host %s, user %s, command %s\n",
131 ssh_program, host,
132 remuser ? remuser : "(unspecified)", cmd);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000133
Damien Miller5428f641999-11-25 11:54:57 +1100134 /*
135 * Reserve two descriptors so that the real pipes won't get
136 * descriptors 0 and 1 because that will screw up dup2 below.
137 */
Damien Miller95def091999-11-25 00:26:21 +1100138 pipe(reserved);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000139
Damien Miller95def091999-11-25 00:26:21 +1100140 /* Create a socket pair for communicating with ssh. */
141 if (pipe(pin) < 0)
142 fatal("pipe: %s", strerror(errno));
143 if (pipe(pout) < 0)
144 fatal("pipe: %s", strerror(errno));
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000145
Damien Miller95def091999-11-25 00:26:21 +1100146 /* Free the reserved descriptors. */
147 close(reserved[0]);
148 close(reserved[1]);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000149
Damien Millerb2cdcb52003-06-18 20:26:34 +1000150 /* Fork a child to execute the command on the remote host using ssh. */
Ben Lindstrom007eb912002-11-09 15:54:08 +0000151 do_cmd_pid = fork();
152 if (do_cmd_pid == 0) {
Damien Miller95def091999-11-25 00:26:21 +1100153 /* Child. */
154 close(pin[1]);
155 close(pout[0]);
156 dup2(pin[0], 0);
157 dup2(pout[1], 1);
158 close(pin[0]);
159 close(pout[1]);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000160
Damien Miller874d77b2000-10-14 16:23:11 +1100161 args.list[0] = ssh_program;
162 if (remuser != NULL)
Ben Lindstrom387c4722001-05-08 20:27:25 +0000163 addargs(&args, "-l%s", remuser);
164 addargs(&args, "%s", host);
165 addargs(&args, "%s", cmd);
Damien Miller95def091999-11-25 00:26:21 +1100166
Damien Miller874d77b2000-10-14 16:23:11 +1100167 execvp(ssh_program, args.list);
Damien Millerad833b32000-08-23 10:46:23 +1000168 perror(ssh_program);
Damien Miller95def091999-11-25 00:26:21 +1100169 exit(1);
Ben Lindstrom007eb912002-11-09 15:54:08 +0000170 } else if (do_cmd_pid == -1) {
171 fatal("fork: %s", strerror(errno));
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000172 }
Damien Miller95def091999-11-25 00:26:21 +1100173 /* Parent. Close the other side, and return the local side. */
174 close(pin[0]);
175 *fdout = pin[1];
176 close(pout[1]);
177 *fdin = pout[0];
Damien Millerb69aaa82003-06-04 22:51:24 +1000178 signal(SIGTERM, killchild);
179 signal(SIGINT, killchild);
180 signal(SIGHUP, killchild);
Damien Miller95def091999-11-25 00:26:21 +1100181 return 0;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000182}
183
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000184typedef struct {
185 int cnt;
186 char *buf;
187} BUF;
188
Damien Miller95def091999-11-25 00:26:21 +1100189BUF *allocbuf(BUF *, int, int);
Damien Miller95def091999-11-25 00:26:21 +1100190void lostconn(int);
191void nospace(void);
192int okname(char *);
193void run_err(const char *,...);
194void verifydir(char *);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000195
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000196struct passwd *pwd;
Damien Miller95def091999-11-25 00:26:21 +1100197uid_t userid;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000198int errs, remin, remout;
199int pflag, iamremote, iamrecursive, targetshouldbedirectory;
200
201#define CMDNEEDS 64
202char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
203
Damien Miller95def091999-11-25 00:26:21 +1100204int response(void);
205void rsource(char *, struct stat *);
206void sink(int, char *[]);
207void source(int, char *[]);
208void tolocal(int, char *[]);
209void toremote(char *, int, char *[]);
210void usage(void);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000211
212int
Damien Miller65d1f572003-06-04 22:51:08 +1000213main(int argc, char **argv)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000214{
Ben Lindstrom007eb912002-11-09 15:54:08 +0000215 int ch, fflag, tflag, status;
Damien Millerff74d742003-01-24 11:36:58 +1100216 double speed;
217 char *targ, *endp;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000218 extern char *optarg;
219 extern int optind;
220
Damien Miller59d3d5b2003-08-22 09:34:41 +1000221 __progname = ssh_get_progname(argv[0]);
Ben Lindstrom49a79c02000-11-17 03:47:20 +0000222
Damien Miller874d77b2000-10-14 16:23:11 +1100223 args.list = NULL;
Ben Lindstromcb72e4f2002-06-21 00:41:51 +0000224 addargs(&args, "ssh"); /* overwritten with ssh_program */
Ben Lindstrom387c4722001-05-08 20:27:25 +0000225 addargs(&args, "-x");
Ben Lindstrom4213c552001-09-12 18:45:09 +0000226 addargs(&args, "-oForwardAgent no");
Ben Lindstrom2b7a0e92001-09-20 00:57:55 +0000227 addargs(&args, "-oClearAllForwardings yes");
Damien Miller874d77b2000-10-14 16:23:11 +1100228
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000229 fflag = tflag = 0;
Damien Miller8e121472003-01-24 11:37:38 +1100230 while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q1246S:o:F:")) != -1)
Damien Miller95def091999-11-25 00:26:21 +1100231 switch (ch) {
232 /* User-visible flags. */
Damien Miller8e121472003-01-24 11:37:38 +1100233 case '1':
234 case '2':
Damien Miller34132e52000-01-14 15:45:46 +1100235 case '4':
Damien Miller34132e52000-01-14 15:45:46 +1100236 case '6':
Damien Miller874d77b2000-10-14 16:23:11 +1100237 case 'C':
Ben Lindstrom387c4722001-05-08 20:27:25 +0000238 addargs(&args, "-%c", ch);
Damien Miller874d77b2000-10-14 16:23:11 +1100239 break;
240 case 'o':
241 case 'c':
242 case 'i':
Ben Lindstrom1e243242001-09-18 05:38:44 +0000243 case 'F':
Ben Lindstrom387c4722001-05-08 20:27:25 +0000244 addargs(&args, "-%c%s", ch, optarg);
Damien Miller874d77b2000-10-14 16:23:11 +1100245 break;
246 case 'P':
Ben Lindstrom387c4722001-05-08 20:27:25 +0000247 addargs(&args, "-p%s", optarg);
Damien Miller874d77b2000-10-14 16:23:11 +1100248 break;
249 case 'B':
Ben Lindstrom387c4722001-05-08 20:27:25 +0000250 addargs(&args, "-oBatchmode yes");
Damien Miller34132e52000-01-14 15:45:46 +1100251 break;
Damien Millerff74d742003-01-24 11:36:58 +1100252 case 'l':
253 speed = strtod(optarg, &endp);
254 if (speed <= 0 || *endp != '\0')
255 usage();
Damien Miller4da295c2003-11-22 14:39:04 +1100256 limit_rate = speed * 1024;
Damien Millerff74d742003-01-24 11:36:58 +1100257 break;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000258 case 'p':
259 pflag = 1;
260 break;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000261 case 'r':
262 iamrecursive = 1;
263 break;
Damien Millerad833b32000-08-23 10:46:23 +1000264 case 'S':
Damien Miller874d77b2000-10-14 16:23:11 +1100265 ssh_program = xstrdup(optarg);
266 break;
267 case 'v':
Ben Lindstrom9cc94642001-06-09 01:15:11 +0000268 addargs(&args, "-v");
Damien Miller874d77b2000-10-14 16:23:11 +1100269 verbose_mode = 1;
270 break;
271 case 'q':
Damien Millerc1f27922003-11-17 21:19:05 +1100272 addargs(&args, "-q");
Damien Miller874d77b2000-10-14 16:23:11 +1100273 showprogress = 0;
Damien Millerad833b32000-08-23 10:46:23 +1000274 break;
275
Damien Miller95def091999-11-25 00:26:21 +1100276 /* Server options. */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000277 case 'd':
278 targetshouldbedirectory = 1;
279 break;
Damien Miller95def091999-11-25 00:26:21 +1100280 case 'f': /* "from" */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000281 iamremote = 1;
282 fflag = 1;
283 break;
Damien Miller95def091999-11-25 00:26:21 +1100284 case 't': /* "to" */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000285 iamremote = 1;
286 tflag = 1;
Damien Miller402b3312001-04-14 00:28:42 +1000287#ifdef HAVE_CYGWIN
288 setmode(0, O_BINARY);
289#endif
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000290 break;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000291 default:
292 usage();
293 }
294 argc -= optind;
295 argv += optind;
296
297 if ((pwd = getpwuid(userid = getuid())) == NULL)
Darren Tucker03a29ba2003-07-19 20:07:45 +1000298 fatal("unknown user %u", (u_int) userid);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000299
Damien Miller95def091999-11-25 00:26:21 +1100300 if (!isatty(STDERR_FILENO))
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000301 showprogress = 0;
302
303 remin = STDIN_FILENO;
304 remout = STDOUT_FILENO;
305
Kevin Stevesef4eea92001-02-05 12:42:17 +0000306 if (fflag) {
Damien Miller95def091999-11-25 00:26:21 +1100307 /* Follow "protocol", send data. */
308 (void) response();
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000309 source(argc, argv);
310 exit(errs != 0);
311 }
Damien Miller95def091999-11-25 00:26:21 +1100312 if (tflag) {
313 /* Receive data. */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000314 sink(argc, argv);
315 exit(errs != 0);
316 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000317 if (argc < 2)
318 usage();
319 if (argc > 2)
320 targetshouldbedirectory = 1;
321
322 remin = remout = -1;
Ben Lindstrom007eb912002-11-09 15:54:08 +0000323 do_cmd_pid = -1;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000324 /* Command to be executed on remote system using "ssh". */
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000325 (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s",
326 verbose_mode ? " -v" : "",
Damien Millerad833b32000-08-23 10:46:23 +1000327 iamrecursive ? " -r" : "", pflag ? " -p" : "",
328 targetshouldbedirectory ? " -d" : "");
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000329
Damien Miller95def091999-11-25 00:26:21 +1100330 (void) signal(SIGPIPE, lostconn);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000331
332 if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */
333 toremote(targ, argc, argv);
334 else {
Damien Miller95def091999-11-25 00:26:21 +1100335 tolocal(argc, argv); /* Dest is local host. */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000336 if (targetshouldbedirectory)
337 verifydir(argv[argc - 1]);
338 }
Ben Lindstrom007eb912002-11-09 15:54:08 +0000339 /*
340 * Finally check the exit status of the ssh process, if one was forked
341 * and no error has occured yet
342 */
343 if (do_cmd_pid != -1 && errs == 0) {
344 if (remin != -1)
345 (void) close(remin);
346 if (remout != -1)
347 (void) close(remout);
348 if (waitpid(do_cmd_pid, &status, 0) == -1)
349 errs = 1;
350 else {
351 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
352 errs = 1;
353 }
354 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000355 exit(errs != 0);
356}
357
358void
Damien Miller65d1f572003-06-04 22:51:08 +1000359toremote(char *targ, int argc, char **argv)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000360{
361 int i, len;
362 char *bp, *host, *src, *suser, *thost, *tuser;
363
364 *targ++ = 0;
365 if (*targ == 0)
366 targ = ".";
367
Ben Lindstromc276c122002-12-23 02:14:51 +0000368 if ((thost = strrchr(argv[argc - 1], '@'))) {
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000369 /* user@host */
370 *thost++ = 0;
371 tuser = argv[argc - 1];
372 if (*tuser == '\0')
373 tuser = NULL;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000374 } else {
375 thost = argv[argc - 1];
376 tuser = NULL;
377 }
378
379 for (i = 0; i < argc - 1; i++) {
380 src = colon(argv[i]);
Damien Miller95def091999-11-25 00:26:21 +1100381 if (src) { /* remote to remote */
Ben Lindstrom2b7a0e92001-09-20 00:57:55 +0000382 static char *ssh_options =
Ben Lindstromaf0c6d62002-06-09 20:06:29 +0000383 "-x -o'ClearAllForwardings yes'";
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000384 *src++ = 0;
385 if (*src == 0)
386 src = ".";
Ben Lindstromc276c122002-12-23 02:14:51 +0000387 host = strrchr(argv[i], '@');
Damien Millerad833b32000-08-23 10:46:23 +1000388 len = strlen(ssh_program) + strlen(argv[i]) +
389 strlen(src) + (tuser ? strlen(tuser) : 0) +
Ben Lindstrom2b7a0e92001-09-20 00:57:55 +0000390 strlen(thost) + strlen(targ) +
391 strlen(ssh_options) + CMDNEEDS + 20;
Damien Miller95def091999-11-25 00:26:21 +1100392 bp = xmalloc(len);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000393 if (host) {
394 *host++ = 0;
Damien Miller34132e52000-01-14 15:45:46 +1100395 host = cleanhostname(host);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000396 suser = argv[i];
397 if (*suser == '\0')
398 suser = pwd->pw_name;
Damien Miller00111382003-03-10 11:21:17 +1100399 else if (!okname(suser)) {
400 xfree(bp);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000401 continue;
Damien Miller00111382003-03-10 11:21:17 +1100402 }
403 if (tuser && !okname(tuser)) {
404 xfree(bp);
Damien Millereeeeb352003-02-24 11:52:58 +1100405 continue;
Damien Miller00111382003-03-10 11:21:17 +1100406 }
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000407 snprintf(bp, len,
Ben Lindstrom2b7a0e92001-09-20 00:57:55 +0000408 "%s%s %s -n "
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000409 "-l %s %s %s %s '%s%s%s:%s'",
Kevin Steves7d00ba42000-12-15 23:03:10 +0000410 ssh_program, verbose_mode ? " -v" : "",
Ben Lindstrom2b7a0e92001-09-20 00:57:55 +0000411 ssh_options, suser, host, cmd, src,
Kevin Steves7d00ba42000-12-15 23:03:10 +0000412 tuser ? tuser : "", tuser ? "@" : "",
413 thost, targ);
Damien Miller34132e52000-01-14 15:45:46 +1100414 } else {
415 host = cleanhostname(argv[i]);
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000416 snprintf(bp, len,
Ben Lindstrom2b7a0e92001-09-20 00:57:55 +0000417 "exec %s%s %s -n %s "
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000418 "%s %s '%s%s%s:%s'",
Kevin Steves7d00ba42000-12-15 23:03:10 +0000419 ssh_program, verbose_mode ? " -v" : "",
Ben Lindstrom2b7a0e92001-09-20 00:57:55 +0000420 ssh_options, host, cmd, src,
Kevin Steves7d00ba42000-12-15 23:03:10 +0000421 tuser ? tuser : "", tuser ? "@" : "",
422 thost, targ);
Damien Miller34132e52000-01-14 15:45:46 +1100423 }
Damien Miller95def091999-11-25 00:26:21 +1100424 if (verbose_mode)
425 fprintf(stderr, "Executing: %s\n", bp);
Darren Tucker8654d162003-09-22 21:14:55 +1000426 if (system(bp) != 0)
427 errs = 1;
Damien Miller95def091999-11-25 00:26:21 +1100428 (void) xfree(bp);
429 } else { /* local to remote */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000430 if (remin == -1) {
431 len = strlen(targ) + CMDNEEDS + 20;
Damien Miller95def091999-11-25 00:26:21 +1100432 bp = xmalloc(len);
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000433 (void) snprintf(bp, len, "%s -t %s", cmd, targ);
Damien Miller34132e52000-01-14 15:45:46 +1100434 host = cleanhostname(thost);
Damien Millerad833b32000-08-23 10:46:23 +1000435 if (do_cmd(host, tuser, bp, &remin,
436 &remout, argc) < 0)
Damien Miller95def091999-11-25 00:26:21 +1100437 exit(1);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000438 if (response() < 0)
439 exit(1);
Damien Miller95def091999-11-25 00:26:21 +1100440 (void) xfree(bp);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000441 }
Damien Miller95def091999-11-25 00:26:21 +1100442 source(1, argv + i);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000443 }
444 }
445}
446
447void
Damien Miller65d1f572003-06-04 22:51:08 +1000448tolocal(int argc, char **argv)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000449{
450 int i, len;
451 char *bp, *host, *src, *suser;
452
453 for (i = 0; i < argc - 1; i++) {
Damien Miller95def091999-11-25 00:26:21 +1100454 if (!(src = colon(argv[i]))) { /* Local to local. */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000455 len = strlen(_PATH_CP) + strlen(argv[i]) +
Damien Millerad833b32000-08-23 10:46:23 +1000456 strlen(argv[argc - 1]) + 20;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000457 bp = xmalloc(len);
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000458 (void) snprintf(bp, len, "exec %s%s%s %s %s", _PATH_CP,
Damien Millerad833b32000-08-23 10:46:23 +1000459 iamrecursive ? " -r" : "", pflag ? " -p" : "",
460 argv[i], argv[argc - 1]);
Damien Miller95def091999-11-25 00:26:21 +1100461 if (verbose_mode)
462 fprintf(stderr, "Executing: %s\n", bp);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000463 if (system(bp))
464 ++errs;
Damien Miller95def091999-11-25 00:26:21 +1100465 (void) xfree(bp);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000466 continue;
467 }
468 *src++ = 0;
469 if (*src == 0)
470 src = ".";
Ben Lindstromc276c122002-12-23 02:14:51 +0000471 if ((host = strrchr(argv[i], '@')) == NULL) {
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000472 host = argv[i];
473 suser = NULL;
474 } else {
475 *host++ = 0;
476 suser = argv[i];
477 if (*suser == '\0')
478 suser = pwd->pw_name;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000479 }
Damien Miller34132e52000-01-14 15:45:46 +1100480 host = cleanhostname(host);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000481 len = strlen(src) + CMDNEEDS + 20;
Damien Miller95def091999-11-25 00:26:21 +1100482 bp = xmalloc(len);
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000483 (void) snprintf(bp, len, "%s -f %s", cmd, src);
Damien Millerad833b32000-08-23 10:46:23 +1000484 if (do_cmd(host, suser, bp, &remin, &remout, argc) < 0) {
Damien Miller95def091999-11-25 00:26:21 +1100485 (void) xfree(bp);
486 ++errs;
487 continue;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000488 }
Damien Miller95def091999-11-25 00:26:21 +1100489 xfree(bp);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000490 sink(1, argv + argc - 1);
Damien Miller95def091999-11-25 00:26:21 +1100491 (void) close(remin);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000492 remin = remout = -1;
493 }
494}
495
496void
Damien Miller65d1f572003-06-04 22:51:08 +1000497source(int argc, char **argv)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000498{
499 struct stat stb;
500 static BUF buffer;
501 BUF *bp;
Damien Miller62d57f62003-01-10 21:43:24 +1100502 off_t i, amt, result, statbytes;
Ben Lindstrom4eda71d2001-04-22 17:13:20 +0000503 int fd, haderr, indx;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000504 char *last, *name, buf[2048];
Ben Lindstromd47cf4d2001-04-07 01:14:38 +0000505 int len;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000506
507 for (indx = 0; indx < argc; ++indx) {
Damien Miller95def091999-11-25 00:26:21 +1100508 name = argv[indx];
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000509 statbytes = 0;
Ben Lindstromd47cf4d2001-04-07 01:14:38 +0000510 len = strlen(name);
511 while (len > 1 && name[len-1] == '/')
512 name[--len] = '\0';
Ben Lindstrom3e45e4c2001-10-03 17:30:58 +0000513 if (strchr(name, '\n') != NULL) {
514 run_err("%s: skipping, filename contains a newline",
515 name);
516 goto next;
517 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000518 if ((fd = open(name, O_RDONLY, 0)) < 0)
519 goto syserr;
520 if (fstat(fd, &stb) < 0) {
521syserr: run_err("%s: %s", name, strerror(errno));
522 goto next;
523 }
524 switch (stb.st_mode & S_IFMT) {
525 case S_IFREG:
526 break;
527 case S_IFDIR:
528 if (iamrecursive) {
529 rsource(name, &stb);
530 goto next;
531 }
532 /* FALLTHROUGH */
533 default:
534 run_err("%s: not a regular file", name);
535 goto next;
536 }
537 if ((last = strrchr(name, '/')) == NULL)
538 last = name;
539 else
540 ++last;
541 curfile = last;
542 if (pflag) {
543 /*
544 * Make it compatible with possible future
545 * versions expecting microseconds.
546 */
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000547 (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n",
Ben Lindstrom46c16222000-12-22 01:43:59 +0000548 (u_long) stb.st_mtime,
549 (u_long) stb.st_atime);
Darren Tucker9f63f222003-07-03 13:46:56 +1000550 (void) atomicio(vwrite, remout, buf, strlen(buf));
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000551 if (response() < 0)
552 goto next;
553 }
554#define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
Ben Lindstroma4c57662001-03-17 00:10:20 +0000555 snprintf(buf, sizeof buf, "C%04o %lld %s\n",
Ben Lindstrom46c16222000-12-22 01:43:59 +0000556 (u_int) (stb.st_mode & FILEMODEMASK),
Ben Lindstrom0e7f4362003-04-28 23:30:43 +0000557 (int64_t)stb.st_size, last);
Damien Miller95def091999-11-25 00:26:21 +1100558 if (verbose_mode) {
559 fprintf(stderr, "Sending file modes: %s", buf);
Damien Miller95def091999-11-25 00:26:21 +1100560 }
Darren Tucker9f63f222003-07-03 13:46:56 +1000561 (void) atomicio(vwrite, remout, buf, strlen(buf));
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000562 if (response() < 0)
563 goto next;
564 if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) {
Damien Miller95def091999-11-25 00:26:21 +1100565next: (void) close(fd);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000566 continue;
567 }
Damien Miller62d57f62003-01-10 21:43:24 +1100568 if (showprogress)
569 start_progress_meter(curfile, stb.st_size, &statbytes);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000570 /* Keep writing after an error so that we stay sync'd up. */
571 for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
572 amt = bp->cnt;
573 if (i + amt > stb.st_size)
574 amt = stb.st_size - i;
575 if (!haderr) {
Damien Millere247cc42000-05-07 12:03:14 +1000576 result = atomicio(read, fd, bp->buf, amt);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000577 if (result != amt)
578 haderr = result >= 0 ? EIO : errno;
579 }
580 if (haderr)
Darren Tucker9f63f222003-07-03 13:46:56 +1000581 (void) atomicio(vwrite, remout, bp->buf, amt);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000582 else {
Darren Tucker9f63f222003-07-03 13:46:56 +1000583 result = atomicio(vwrite, remout, bp->buf, amt);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000584 if (result != amt)
585 haderr = result >= 0 ? EIO : errno;
586 statbytes += result;
587 }
Damien Miller4da295c2003-11-22 14:39:04 +1100588 if (limit_rate)
Damien Millerff74d742003-01-24 11:36:58 +1100589 bwlimit(amt);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000590 }
Damien Miller95def091999-11-25 00:26:21 +1100591 if (showprogress)
Damien Miller62d57f62003-01-10 21:43:24 +1100592 stop_progress_meter();
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000593
594 if (close(fd) < 0 && !haderr)
595 haderr = errno;
596 if (!haderr)
Darren Tucker9f63f222003-07-03 13:46:56 +1000597 (void) atomicio(vwrite, remout, "", 1);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000598 else
599 run_err("%s: %s", name, strerror(haderr));
Damien Miller95def091999-11-25 00:26:21 +1100600 (void) response();
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000601 }
602}
603
604void
Damien Miller65d1f572003-06-04 22:51:08 +1000605rsource(char *name, struct stat *statp)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000606{
607 DIR *dirp;
608 struct dirent *dp;
609 char *last, *vect[1], path[1100];
610
611 if (!(dirp = opendir(name))) {
612 run_err("%s: %s", name, strerror(errno));
613 return;
614 }
615 last = strrchr(name, '/');
616 if (last == 0)
617 last = name;
618 else
619 last++;
620 if (pflag) {
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000621 (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n",
Ben Lindstrom46c16222000-12-22 01:43:59 +0000622 (u_long) statp->st_mtime,
623 (u_long) statp->st_atime);
Darren Tucker9f63f222003-07-03 13:46:56 +1000624 (void) atomicio(vwrite, remout, path, strlen(path));
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000625 if (response() < 0) {
626 closedir(dirp);
627 return;
628 }
629 }
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000630 (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n",
Ben Lindstrom46c16222000-12-22 01:43:59 +0000631 (u_int) (statp->st_mode & FILEMODEMASK), 0, last);
Damien Miller95def091999-11-25 00:26:21 +1100632 if (verbose_mode)
633 fprintf(stderr, "Entering directory: %s", path);
Darren Tucker9f63f222003-07-03 13:46:56 +1000634 (void) atomicio(vwrite, remout, path, strlen(path));
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000635 if (response() < 0) {
636 closedir(dirp);
637 return;
638 }
Ben Lindstrombd472262001-03-29 00:39:55 +0000639 while ((dp = readdir(dirp)) != NULL) {
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000640 if (dp->d_ino == 0)
641 continue;
642 if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
643 continue;
644 if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) {
645 run_err("%s/%s: name too long", name, dp->d_name);
646 continue;
647 }
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000648 (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000649 vect[0] = path;
650 source(1, vect);
651 }
Damien Miller95def091999-11-25 00:26:21 +1100652 (void) closedir(dirp);
Darren Tucker9f63f222003-07-03 13:46:56 +1000653 (void) atomicio(vwrite, remout, "E\n", 2);
Damien Miller95def091999-11-25 00:26:21 +1100654 (void) response();
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000655}
656
657void
Damien Millerff74d742003-01-24 11:36:58 +1100658bwlimit(int amount)
659{
660 static struct timeval bwstart, bwend;
661 static int lamt, thresh = 16384;
Darren Tucker3f9fdc72004-06-22 12:56:01 +1000662 u_int64_t waitlen;
Damien Millerff74d742003-01-24 11:36:58 +1100663 struct timespec ts, rm;
664
665 if (!timerisset(&bwstart)) {
666 gettimeofday(&bwstart, NULL);
667 return;
668 }
669
670 lamt += amount;
671 if (lamt < thresh)
672 return;
673
674 gettimeofday(&bwend, NULL);
675 timersub(&bwend, &bwstart, &bwend);
676 if (!timerisset(&bwend))
677 return;
678
679 lamt *= 8;
Darren Tucker3f9fdc72004-06-22 12:56:01 +1000680 waitlen = (double)1000000L * lamt / limit_rate;
Damien Millerff74d742003-01-24 11:36:58 +1100681
Darren Tucker3f9fdc72004-06-22 12:56:01 +1000682 bwstart.tv_sec = waitlen / 1000000L;
683 bwstart.tv_usec = waitlen % 1000000L;
Damien Millerff74d742003-01-24 11:36:58 +1100684
685 if (timercmp(&bwstart, &bwend, >)) {
686 timersub(&bwstart, &bwend, &bwend);
687
688 /* Adjust the wait time */
689 if (bwend.tv_sec) {
690 thresh /= 2;
691 if (thresh < 2048)
692 thresh = 2048;
693 } else if (bwend.tv_usec < 100) {
694 thresh *= 2;
695 if (thresh > 32768)
696 thresh = 32768;
697 }
698
699 TIMEVAL_TO_TIMESPEC(&bwend, &ts);
700 while (nanosleep(&ts, &rm) == -1) {
701 if (errno != EINTR)
702 break;
703 ts = rm;
704 }
705 }
706
707 lamt = 0;
708 gettimeofday(&bwstart, NULL);
709}
710
711void
Damien Miller65d1f572003-06-04 22:51:08 +1000712sink(int argc, char **argv)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000713{
714 static BUF buffer;
715 struct stat stb;
Damien Miller95def091999-11-25 00:26:21 +1100716 enum {
717 YES, NO, DISPLAYED
718 } wrerr;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000719 BUF *bp;
720 off_t i, j;
721 int amt, count, exists, first, mask, mode, ofd, omode;
Damien Miller62d57f62003-01-10 21:43:24 +1100722 off_t size, statbytes;
Damien Millercaf6dd62000-08-29 11:33:50 +1100723 int setimes, targisdir, wrerrno = 0;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000724 char ch, *cp, *np, *targ, *why, *vect[1], buf[2048];
Damien Miller62cee002000-09-23 17:15:56 +1100725 struct timeval tv[2];
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000726
Ben Lindstromf719a202001-04-14 23:14:22 +0000727#define atime tv[0]
728#define mtime tv[1]
Ben Lindstrom7d5ed3a2001-06-25 04:28:30 +0000729#define SCREWUP(str) do { why = str; goto screwup; } while (0)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000730
731 setimes = targisdir = 0;
732 mask = umask(0);
733 if (!pflag)
Damien Miller95def091999-11-25 00:26:21 +1100734 (void) umask(mask);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000735 if (argc != 1) {
736 run_err("ambiguous target");
737 exit(1);
738 }
739 targ = *argv;
740 if (targetshouldbedirectory)
741 verifydir(targ);
Damien Miller95def091999-11-25 00:26:21 +1100742
Darren Tucker9f63f222003-07-03 13:46:56 +1000743 (void) atomicio(vwrite, remout, "", 1);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000744 if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
745 targisdir = 1;
746 for (first = 1;; first = 0) {
747 cp = buf;
Damien Millere247cc42000-05-07 12:03:14 +1000748 if (atomicio(read, remin, cp, 1) <= 0)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000749 return;
750 if (*cp++ == '\n')
751 SCREWUP("unexpected <newline>");
752 do {
Damien Millere247cc42000-05-07 12:03:14 +1000753 if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000754 SCREWUP("lost connection");
755 *cp++ = ch;
756 } while (cp < &buf[sizeof(buf) - 1] && ch != '\n');
757 *cp = 0;
Darren Tuckerbddc2b02004-04-19 23:50:16 +1000758 if (verbose_mode)
759 fprintf(stderr, "Sink: %s", buf);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000760
761 if (buf[0] == '\01' || buf[0] == '\02') {
762 if (iamremote == 0)
Darren Tucker9f63f222003-07-03 13:46:56 +1000763 (void) atomicio(vwrite, STDERR_FILENO,
Kevin Steves7d00ba42000-12-15 23:03:10 +0000764 buf + 1, strlen(buf + 1));
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000765 if (buf[0] == '\02')
766 exit(1);
767 ++errs;
768 continue;
769 }
770 if (buf[0] == 'E') {
Darren Tucker9f63f222003-07-03 13:46:56 +1000771 (void) atomicio(vwrite, remout, "", 1);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000772 return;
773 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000774 if (ch == '\n')
775 *--cp = 0;
776
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000777 cp = buf;
778 if (*cp == 'T') {
779 setimes++;
780 cp++;
Ben Lindstromf719a202001-04-14 23:14:22 +0000781 mtime.tv_sec = strtol(cp, &cp, 10);
782 if (!cp || *cp++ != ' ')
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000783 SCREWUP("mtime.sec not delimited");
Ben Lindstromf719a202001-04-14 23:14:22 +0000784 mtime.tv_usec = strtol(cp, &cp, 10);
785 if (!cp || *cp++ != ' ')
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000786 SCREWUP("mtime.usec not delimited");
Ben Lindstromf719a202001-04-14 23:14:22 +0000787 atime.tv_sec = strtol(cp, &cp, 10);
788 if (!cp || *cp++ != ' ')
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000789 SCREWUP("atime.sec not delimited");
Ben Lindstromf719a202001-04-14 23:14:22 +0000790 atime.tv_usec = strtol(cp, &cp, 10);
791 if (!cp || *cp++ != '\0')
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000792 SCREWUP("atime.usec not delimited");
Darren Tucker9f63f222003-07-03 13:46:56 +1000793 (void) atomicio(vwrite, remout, "", 1);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000794 continue;
795 }
796 if (*cp != 'C' && *cp != 'D') {
797 /*
798 * Check for the case "rcp remote:foo\* local:bar".
799 * In this case, the line "No match." can be returned
800 * by the shell before the rcp command on the remote is
801 * executed so the ^Aerror_message convention isn't
802 * followed.
803 */
804 if (first) {
805 run_err("%s", cp);
806 exit(1);
807 }
808 SCREWUP("expected control record");
809 }
810 mode = 0;
811 for (++cp; cp < buf + 5; cp++) {
812 if (*cp < '0' || *cp > '7')
813 SCREWUP("bad mode");
814 mode = (mode << 3) | (*cp - '0');
815 }
816 if (*cp++ != ' ')
817 SCREWUP("mode not delimited");
818
Ben Lindstrombd472262001-03-29 00:39:55 +0000819 for (size = 0; isdigit(*cp);)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000820 size = size * 10 + (*cp++ - '0');
821 if (*cp++ != ' ')
822 SCREWUP("size not delimited");
Darren Tuckerbddc2b02004-04-19 23:50:16 +1000823 if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) {
824 run_err("error: unexpected filename: %s", cp);
825 exit(1);
826 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000827 if (targisdir) {
828 static char *namebuf;
829 static int cursize;
830 size_t need;
831
832 need = strlen(targ) + strlen(cp) + 250;
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000833 if (need > cursize) {
834 if (namebuf)
835 xfree(namebuf);
Damien Miller95def091999-11-25 00:26:21 +1100836 namebuf = xmalloc(need);
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000837 cursize = need;
838 }
839 (void) snprintf(namebuf, need, "%s%s%s", targ,
Ben Lindstromde3895d2002-04-06 18:29:59 +0000840 strcmp(targ, "/") ? "/" : "", cp);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000841 np = namebuf;
842 } else
843 np = targ;
844 curfile = cp;
845 exists = stat(np, &stb) == 0;
846 if (buf[0] == 'D') {
847 int mod_flag = pflag;
Darren Tuckerbddc2b02004-04-19 23:50:16 +1000848 if (!iamrecursive)
849 SCREWUP("received directory without -r");
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000850 if (exists) {
851 if (!S_ISDIR(stb.st_mode)) {
852 errno = ENOTDIR;
853 goto bad;
854 }
855 if (pflag)
Damien Miller95def091999-11-25 00:26:21 +1100856 (void) chmod(np, mode);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000857 } else {
Damien Miller95def091999-11-25 00:26:21 +1100858 /* Handle copying from a read-only
859 directory */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000860 mod_flag = 1;
861 if (mkdir(np, mode | S_IRWXU) < 0)
862 goto bad;
863 }
Ben Lindstrom550bc542001-02-10 21:50:00 +0000864 vect[0] = xstrdup(np);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000865 sink(1, vect);
866 if (setimes) {
867 setimes = 0;
Damien Miller225736c2001-02-19 21:51:08 +1100868 if (utimes(vect[0], tv) < 0)
Damien Miller95def091999-11-25 00:26:21 +1100869 run_err("%s: set times: %s",
Damien Miller225736c2001-02-19 21:51:08 +1100870 vect[0], strerror(errno));
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000871 }
872 if (mod_flag)
Damien Miller225736c2001-02-19 21:51:08 +1100873 (void) chmod(vect[0], mode);
874 if (vect[0])
875 xfree(vect[0]);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000876 continue;
877 }
878 omode = mode;
879 mode |= S_IWRITE;
Ben Lindstrom7bad55b2001-06-05 19:31:41 +0000880 if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) {
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000881bad: run_err("%s: %s", np, strerror(errno));
882 continue;
883 }
Darren Tucker9f63f222003-07-03 13:46:56 +1000884 (void) atomicio(vwrite, remout, "", 1);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000885 if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) {
Damien Miller95def091999-11-25 00:26:21 +1100886 (void) close(ofd);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000887 continue;
888 }
889 cp = bp->buf;
890 wrerr = NO;
891
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000892 statbytes = 0;
Damien Miller62d57f62003-01-10 21:43:24 +1100893 if (showprogress)
894 start_progress_meter(curfile, size, &statbytes);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000895 for (count = i = 0; i < size; i += 4096) {
896 amt = 4096;
897 if (i + amt > size)
898 amt = size - i;
899 count += amt;
900 do {
Darren Tuckerfe6649d2004-08-13 21:19:37 +1000901 j = atomicio(read, remin, cp, amt);
902 if (j <= 0) {
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000903 run_err("%s", j ? strerror(errno) :
Ben Lindstrombd472262001-03-29 00:39:55 +0000904 "dropped connection");
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000905 exit(1);
906 }
907 amt -= j;
908 cp += j;
Damien Miller95def091999-11-25 00:26:21 +1100909 statbytes += j;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000910 } while (amt > 0);
Damien Miller787b2ec2003-11-21 23:56:47 +1100911
Damien Miller4da295c2003-11-22 14:39:04 +1100912 if (limit_rate)
Damien Millerff74d742003-01-24 11:36:58 +1100913 bwlimit(4096);
914
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000915 if (count == bp->cnt) {
916 /* Keep reading so we stay sync'd up. */
917 if (wrerr == NO) {
Darren Tucker9f63f222003-07-03 13:46:56 +1000918 j = atomicio(vwrite, ofd, bp->buf, count);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000919 if (j != count) {
920 wrerr = YES;
Damien Miller95def091999-11-25 00:26:21 +1100921 wrerrno = j >= 0 ? EIO : errno;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000922 }
923 }
924 count = 0;
925 cp = bp->buf;
926 }
927 }
928 if (showprogress)
Damien Miller62d57f62003-01-10 21:43:24 +1100929 stop_progress_meter();
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000930 if (count != 0 && wrerr == NO &&
Darren Tucker9f63f222003-07-03 13:46:56 +1000931 (j = atomicio(vwrite, ofd, bp->buf, count)) != count) {
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000932 wrerr = YES;
Damien Miller95def091999-11-25 00:26:21 +1100933 wrerrno = j >= 0 ? EIO : errno;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000934 }
Damien Miller86b781c2003-01-10 21:44:48 +1100935 if (wrerr == NO && ftruncate(ofd, size) != 0) {
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000936 run_err("%s: truncate: %s", np, strerror(errno));
937 wrerr = DISPLAYED;
938 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000939 if (pflag) {
940 if (exists || omode != mode)
Damien Miller78315eb2000-09-29 23:01:36 +1100941#ifdef HAVE_FCHMOD
Darren Tuckere1f17052004-07-08 23:11:44 +1000942 if (fchmod(ofd, omode)) {
Damien Miller78315eb2000-09-29 23:01:36 +1100943#else /* HAVE_FCHMOD */
Darren Tuckere1f17052004-07-08 23:11:44 +1000944 if (chmod(np, omode)) {
Damien Miller78315eb2000-09-29 23:01:36 +1100945#endif /* HAVE_FCHMOD */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000946 run_err("%s: set mode: %s",
Ben Lindstrombd472262001-03-29 00:39:55 +0000947 np, strerror(errno));
Darren Tuckere1f17052004-07-08 23:11:44 +1000948 wrerr = DISPLAYED;
949 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000950 } else {
951 if (!exists && omode != mode)
Damien Miller78315eb2000-09-29 23:01:36 +1100952#ifdef HAVE_FCHMOD
Darren Tuckere1f17052004-07-08 23:11:44 +1000953 if (fchmod(ofd, omode & ~mask)) {
Damien Miller78315eb2000-09-29 23:01:36 +1100954#else /* HAVE_FCHMOD */
Darren Tuckere1f17052004-07-08 23:11:44 +1000955 if (chmod(np, omode & ~mask)) {
Damien Miller78315eb2000-09-29 23:01:36 +1100956#endif /* HAVE_FCHMOD */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000957 run_err("%s: set mode: %s",
Ben Lindstrombd472262001-03-29 00:39:55 +0000958 np, strerror(errno));
Darren Tuckere1f17052004-07-08 23:11:44 +1000959 wrerr = DISPLAYED;
960 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000961 }
Damien Millerbe484b52000-07-15 14:14:16 +1000962 if (close(ofd) == -1) {
963 wrerr = YES;
964 wrerrno = errno;
965 }
Damien Miller95def091999-11-25 00:26:21 +1100966 (void) response();
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000967 if (setimes && wrerr == NO) {
968 setimes = 0;
Damien Miller62cee002000-09-23 17:15:56 +1100969 if (utimes(np, tv) < 0) {
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000970 run_err("%s: set times: %s",
Ben Lindstrombd472262001-03-29 00:39:55 +0000971 np, strerror(errno));
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000972 wrerr = DISPLAYED;
973 }
974 }
Damien Miller95def091999-11-25 00:26:21 +1100975 switch (wrerr) {
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000976 case YES:
977 run_err("%s: %s", np, strerror(wrerrno));
978 break;
979 case NO:
Darren Tucker9f63f222003-07-03 13:46:56 +1000980 (void) atomicio(vwrite, remout, "", 1);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000981 break;
982 case DISPLAYED:
983 break;
984 }
985 }
986screwup:
987 run_err("protocol error: %s", why);
988 exit(1);
989}
990
991int
Ben Lindstrom3c36bb22001-12-06 17:55:26 +0000992response(void)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000993{
994 char ch, *cp, resp, rbuf[2048];
995
Damien Millere247cc42000-05-07 12:03:14 +1000996 if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp))
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000997 lostconn(0);
998
999 cp = rbuf;
Damien Miller95def091999-11-25 00:26:21 +11001000 switch (resp) {
1001 case 0: /* ok */
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001002 return (0);
1003 default:
1004 *cp++ = resp;
1005 /* FALLTHROUGH */
Damien Miller95def091999-11-25 00:26:21 +11001006 case 1: /* error, followed by error msg */
1007 case 2: /* fatal error, "" */
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001008 do {
Damien Millere247cc42000-05-07 12:03:14 +10001009 if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001010 lostconn(0);
1011 *cp++ = ch;
1012 } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
1013
1014 if (!iamremote)
Darren Tucker9f63f222003-07-03 13:46:56 +10001015 (void) atomicio(vwrite, STDERR_FILENO, rbuf, cp - rbuf);
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001016 ++errs;
1017 if (resp == 1)
1018 return (-1);
1019 exit(1);
1020 }
1021 /* NOTREACHED */
1022}
1023
1024void
Ben Lindstrom3c36bb22001-12-06 17:55:26 +00001025usage(void)
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001026{
Ben Lindstrom1e243242001-09-18 05:38:44 +00001027 (void) fprintf(stderr,
Darren Tucker1f203942003-10-15 15:50:42 +10001028 "usage: scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]\n"
1029 " [-l limit] [-o ssh_option] [-P port] [-S program]\n"
Ben Lindstrom45933dd2002-06-21 00:10:58 +00001030 " [[user@]host1:]file1 [...] [[user@]host2:]file2\n");
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001031 exit(1);
1032}
1033
1034void
Damien Miller95def091999-11-25 00:26:21 +11001035run_err(const char *fmt,...)
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001036{
1037 static FILE *fp;
1038 va_list ap;
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001039
1040 ++errs;
1041 if (fp == NULL && !(fp = fdopen(remout, "w")))
1042 return;
Damien Miller95def091999-11-25 00:26:21 +11001043 (void) fprintf(fp, "%c", 0x01);
1044 (void) fprintf(fp, "scp: ");
Damien Miller03783f01999-12-31 09:16:40 +11001045 va_start(ap, fmt);
Damien Miller95def091999-11-25 00:26:21 +11001046 (void) vfprintf(fp, fmt, ap);
Damien Miller03783f01999-12-31 09:16:40 +11001047 va_end(ap);
Damien Miller95def091999-11-25 00:26:21 +11001048 (void) fprintf(fp, "\n");
1049 (void) fflush(fp);
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001050
Damien Miller95def091999-11-25 00:26:21 +11001051 if (!iamremote) {
Damien Miller03783f01999-12-31 09:16:40 +11001052 va_start(ap, fmt);
Damien Miller95def091999-11-25 00:26:21 +11001053 vfprintf(stderr, fmt, ap);
Damien Miller03783f01999-12-31 09:16:40 +11001054 va_end(ap);
Damien Miller95def091999-11-25 00:26:21 +11001055 fprintf(stderr, "\n");
1056 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001057}
1058
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001059void
Damien Miller65d1f572003-06-04 22:51:08 +10001060verifydir(char *cp)
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001061{
1062 struct stat stb;
1063
1064 if (!stat(cp, &stb)) {
1065 if (S_ISDIR(stb.st_mode))
1066 return;
1067 errno = ENOTDIR;
1068 }
1069 run_err("%s: %s", cp, strerror(errno));
1070 exit(1);
1071}
1072
1073int
Damien Miller65d1f572003-06-04 22:51:08 +10001074okname(char *cp0)
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001075{
1076 int c;
1077 char *cp;
1078
1079 cp = cp0;
1080 do {
Ben Lindstrom7d5ed3a2001-06-25 04:28:30 +00001081 c = (int)*cp;
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001082 if (c & 0200)
1083 goto bad;
Damien Millereeeeb352003-02-24 11:52:58 +11001084 if (!isalpha(c) && !isdigit(c)) {
1085 switch (c) {
1086 case '\'':
1087 case '"':
1088 case '`':
1089 case ' ':
1090 case '#':
1091 goto bad;
1092 default:
1093 break;
1094 }
1095 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001096 } while (*++cp);
1097 return (1);
1098
Damien Miller98c7ad62000-03-09 21:27:49 +11001099bad: fprintf(stderr, "%s: invalid user name\n", cp0);
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001100 return (0);
1101}
1102
1103BUF *
Damien Miller65d1f572003-06-04 22:51:08 +10001104allocbuf(BUF *bp, int fd, int blksize)
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001105{
1106 size_t size;
Tim Rice13aae5e2001-10-21 17:53:58 -07001107#ifdef HAVE_STRUCT_STAT_ST_BLKSIZE
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001108 struct stat stb;
1109
1110 if (fstat(fd, &stb) < 0) {
1111 run_err("fstat: %s", strerror(errno));
1112 return (0);
1113 }
Ben Lindstrom418e0782002-12-23 02:22:09 +00001114 size = roundup(stb.st_blksize, blksize);
1115 if (size == 0)
Damien Miller95def091999-11-25 00:26:21 +11001116 size = blksize;
Tim Rice13aae5e2001-10-21 17:53:58 -07001117#else /* HAVE_STRUCT_STAT_ST_BLKSIZE */
Kevin Stevesef4eea92001-02-05 12:42:17 +00001118 size = blksize;
Tim Rice13aae5e2001-10-21 17:53:58 -07001119#endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001120 if (bp->cnt >= size)
1121 return (bp);
Damien Miller95def091999-11-25 00:26:21 +11001122 if (bp->buf == NULL)
1123 bp->buf = xmalloc(size);
1124 else
1125 bp->buf = xrealloc(bp->buf, size);
Ben Lindstrom5fccbc22001-09-12 17:49:48 +00001126 memset(bp->buf, 0, size);
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001127 bp->cnt = size;
1128 return (bp);
1129}
1130
1131void
Damien Miller65d1f572003-06-04 22:51:08 +10001132lostconn(int signo)
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001133{
1134 if (!iamremote)
Ben Lindstrom738f51e2001-06-21 03:08:58 +00001135 write(STDERR_FILENO, "lost connection\n", 16);
1136 if (signo)
1137 _exit(1);
1138 else
1139 exit(1);
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001140}