]>
Commit | Line | Data |
---|---|---|
6503dc91 | 1 | /* $OpenBSD: scp.c,v 1.164 2008/10/10 04:55:16 stevesk Exp $ */ |
8efc0c15 | 2 | /* |
bcbf86ec | 3 | * scp - secure remote copy. This is basically patched BSD rcp which |
4 | * uses ssh to do the data transfer (instead of using rcmd). | |
6ae2364d | 5 | * |
bcbf86ec | 6 | * NOTE: This version should NOT be suid root. (This uses ssh to |
7 | * do the transfer and ssh has the necessary privileges.) | |
6ae2364d | 8 | * |
5260325f | 9 | * 1995 Timo Rinne <tri@iki.fi>, Tatu Ylonen <ylo@cs.hut.fi> |
6ae2364d | 10 | * |
bcbf86ec | 11 | * As far as I am concerned, the code I have written for this software |
12 | * can be used freely for any purpose. Any derived versions of this | |
13 | * software must be clearly marked as such, and if the derived work is | |
14 | * incompatible with the protocol description in the RFC file, it must be | |
15 | * called by a name other than "ssh" or "Secure Shell". | |
16 | */ | |
17 | /* | |
f3c7c613 | 18 | * Copyright (c) 1999 Theo de Raadt. All rights reserved. |
19 | * Copyright (c) 1999 Aaron Campbell. All rights reserved. | |
bcbf86ec | 20 | * |
21 | * Redistribution and use in source and binary forms, with or without | |
22 | * modification, are permitted provided that the following conditions | |
23 | * are met: | |
24 | * 1. Redistributions of source code must retain the above copyright | |
25 | * notice, this list of conditions and the following disclaimer. | |
26 | * 2. Redistributions in binary form must reproduce the above copyright | |
27 | * notice, this list of conditions and the following disclaimer in the | |
28 | * documentation and/or other materials provided with the distribution. | |
29 | * | |
30 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
31 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
32 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
33 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
34 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
35 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
36 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
37 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
38 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
39 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
40 | */ | |
8efc0c15 | 41 | |
42 | /* | |
2e73a022 | 43 | * Parts from: |
44 | * | |
8efc0c15 | 45 | * Copyright (c) 1983, 1990, 1992, 1993, 1995 |
46 | * The Regents of the University of California. All rights reserved. | |
47 | * | |
48 | * Redistribution and use in source and binary forms, with or without | |
49 | * modification, are permitted provided that the following conditions | |
50 | * are met: | |
51 | * 1. Redistributions of source code must retain the above copyright | |
52 | * notice, this list of conditions and the following disclaimer. | |
53 | * 2. Redistributions in binary form must reproduce the above copyright | |
54 | * notice, this list of conditions and the following disclaimer in the | |
55 | * documentation and/or other materials provided with the distribution. | |
d981089c | 56 | * 3. Neither the name of the University nor the names of its contributors |
8efc0c15 | 57 | * may be used to endorse or promote products derived from this software |
58 | * without specific prior written permission. | |
59 | * | |
60 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
61 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
62 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
63 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
64 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
65 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
66 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
67 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
68 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
69 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
70 | * SUCH DAMAGE. | |
71 | * | |
8efc0c15 | 72 | */ |
73 | ||
74 | #include "includes.h" | |
aa2eae64 | 75 | |
76 | #include <sys/types.h> | |
536c14e8 | 77 | #include <sys/param.h> |
4095f623 | 78 | #ifdef HAVE_SYS_STAT_H |
79 | # include <sys/stat.h> | |
80 | #endif | |
af8388bc | 81 | #ifdef HAVE_POLL_H |
82 | #include <poll.h> | |
83 | #else | |
84 | # ifdef HAVE_SYS_POLL_H | |
85 | # include <sys/poll.h> | |
86 | # endif | |
55b82b39 | 87 | #endif |
e264ac72 | 88 | #ifdef HAVE_SYS_TIME_H |
89 | # include <sys/time.h> | |
90 | #endif | |
aa2eae64 | 91 | #include <sys/wait.h> |
31652869 | 92 | #include <sys/uio.h> |
68e39d38 | 93 | |
b6438382 | 94 | #include <ctype.h> |
68e39d38 | 95 | #include <dirent.h> |
028094f4 | 96 | #include <errno.h> |
d3221cca | 97 | #include <fcntl.h> |
b1842393 | 98 | #include <pwd.h> |
ada68823 | 99 | #include <signal.h> |
4c72fcfd | 100 | #include <stdarg.h> |
cf851879 | 101 | #include <stdio.h> |
ffa517a8 | 102 | #include <stdlib.h> |
00146caa | 103 | #include <string.h> |
b0f6943a | 104 | #include <time.h> |
5188ba17 | 105 | #include <unistd.h> |
5be98986 | 106 | #if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H) |
107 | #include <vis.h> | |
108 | #endif | |
8efc0c15 | 109 | |
8efc0c15 | 110 | #include "xmalloc.h" |
42f11eb2 | 111 | #include "atomicio.h" |
112 | #include "pathnames.h" | |
113 | #include "log.h" | |
36a358ca | 114 | #include "misc.h" |
b65c3807 | 115 | #include "progressmeter.h" |
8efc0c15 | 116 | |
260d427b | 117 | extern char *__progname; |
260d427b | 118 | |
6484acf8 | 119 | #define COPY_BUFLEN 16384 |
120 | ||
ac93e676 | 121 | int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout); |
122 | ||
6ea3c52a | 123 | void bwlimit(int); |
124 | ||
8a624ebf | 125 | /* Struct for addargs */ |
126 | arglist args; | |
94ec8c6b | 127 | |
6ea3c52a | 128 | /* Bandwidth limit */ |
10adbb52 | 129 | off_t limit_rate = 0; |
6ea3c52a | 130 | |
8efc0c15 | 131 | /* Name of current file being transferred. */ |
132 | char *curfile; | |
133 | ||
134 | /* This is set to non-zero to enable verbose mode. */ | |
5260325f | 135 | int verbose_mode = 0; |
8efc0c15 | 136 | |
8efc0c15 | 137 | /* This is set to zero if the progressmeter is not desired. */ |
138 | int showprogress = 1; | |
139 | ||
2e73a022 | 140 | /* This is the program to execute for the secured connection. ("ssh" or -S) */ |
4b565fda | 141 | char *ssh_program = _PATH_SSH_PROGRAM; |
2e73a022 | 142 | |
252d1a24 | 143 | /* This is used to store the pid of ssh_program */ |
0f764b2f | 144 | pid_t do_cmd_pid = -1; |
145 | ||
146 | static void | |
147 | killchild(int signo) | |
148 | { | |
3c03ad3f | 149 | if (do_cmd_pid > 1) { |
8f4ab41b | 150 | kill(do_cmd_pid, signo ? signo : SIGTERM); |
3c03ad3f | 151 | waitpid(do_cmd_pid, NULL, 0); |
152 | } | |
0f764b2f | 153 | |
8f4ab41b | 154 | if (signo) |
155 | _exit(1); | |
156 | exit(1); | |
0f764b2f | 157 | } |
252d1a24 | 158 | |
4116f5c0 | 159 | static int |
160 | do_local_cmd(arglist *a) | |
161 | { | |
162 | u_int i; | |
163 | int status; | |
164 | pid_t pid; | |
165 | ||
166 | if (a->num == 0) | |
167 | fatal("do_local_cmd: no arguments"); | |
168 | ||
169 | if (verbose_mode) { | |
170 | fprintf(stderr, "Executing:"); | |
171 | for (i = 0; i < a->num; i++) | |
172 | fprintf(stderr, " %s", a->list[i]); | |
173 | fprintf(stderr, "\n"); | |
174 | } | |
175 | if ((pid = fork()) == -1) | |
176 | fatal("do_local_cmd: fork: %s", strerror(errno)); | |
177 | ||
178 | if (pid == 0) { | |
179 | execvp(a->list[0], a->list); | |
180 | perror(a->list[0]); | |
181 | exit(1); | |
182 | } | |
183 | ||
184 | do_cmd_pid = pid; | |
185 | signal(SIGTERM, killchild); | |
186 | signal(SIGINT, killchild); | |
187 | signal(SIGHUP, killchild); | |
188 | ||
189 | while (waitpid(pid, &status, 0) == -1) | |
190 | if (errno != EINTR) | |
191 | fatal("do_local_cmd: waitpid: %s", strerror(errno)); | |
192 | ||
193 | do_cmd_pid = -1; | |
194 | ||
195 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
196 | return (-1); | |
197 | ||
198 | return (0); | |
199 | } | |
200 | ||
aa3378df | 201 | /* |
202 | * This function executes the given command as the specified user on the | |
203 | * given host. This returns < 0 if execution fails, and >= 0 otherwise. This | |
204 | * assigns the input and output file descriptors on success. | |
205 | */ | |
8efc0c15 | 206 | |
6ae2364d | 207 | int |
ac93e676 | 208 | do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout) |
8efc0c15 | 209 | { |
5260325f | 210 | int pin[2], pout[2], reserved[2]; |
211 | ||
212 | if (verbose_mode) | |
0b2988ca | 213 | fprintf(stderr, |
214 | "Executing: program %s host %s, user %s, command %s\n", | |
215 | ssh_program, host, | |
216 | remuser ? remuser : "(unspecified)", cmd); | |
5260325f | 217 | |
aa3378df | 218 | /* |
219 | * Reserve two descriptors so that the real pipes won't get | |
220 | * descriptors 0 and 1 because that will screw up dup2 below. | |
221 | */ | |
2b8dc5e3 | 222 | if (pipe(reserved) < 0) |
223 | fatal("pipe: %s", strerror(errno)); | |
5260325f | 224 | |
225 | /* Create a socket pair for communicating with ssh. */ | |
226 | if (pipe(pin) < 0) | |
227 | fatal("pipe: %s", strerror(errno)); | |
228 | if (pipe(pout) < 0) | |
229 | fatal("pipe: %s", strerror(errno)); | |
230 | ||
231 | /* Free the reserved descriptors. */ | |
232 | close(reserved[0]); | |
233 | close(reserved[1]); | |
234 | ||
1fb23629 | 235 | /* Fork a child to execute the command on the remote host using ssh. */ |
252d1a24 | 236 | do_cmd_pid = fork(); |
237 | if (do_cmd_pid == 0) { | |
5260325f | 238 | /* Child. */ |
239 | close(pin[1]); | |
240 | close(pout[0]); | |
241 | dup2(pin[0], 0); | |
242 | dup2(pout[1], 1); | |
243 | close(pin[0]); | |
244 | close(pout[1]); | |
245 | ||
4116f5c0 | 246 | replacearg(&args, 0, "%s", ssh_program); |
94ec8c6b | 247 | if (remuser != NULL) |
8a624ebf | 248 | addargs(&args, "-l%s", remuser); |
249 | addargs(&args, "%s", host); | |
250 | addargs(&args, "%s", cmd); | |
5260325f | 251 | |
94ec8c6b | 252 | execvp(ssh_program, args.list); |
2e73a022 | 253 | perror(ssh_program); |
5260325f | 254 | exit(1); |
252d1a24 | 255 | } else if (do_cmd_pid == -1) { |
256 | fatal("fork: %s", strerror(errno)); | |
8efc0c15 | 257 | } |
5260325f | 258 | /* Parent. Close the other side, and return the local side. */ |
259 | close(pin[0]); | |
260 | *fdout = pin[1]; | |
261 | close(pout[1]); | |
262 | *fdin = pout[0]; | |
0f764b2f | 263 | signal(SIGTERM, killchild); |
264 | signal(SIGINT, killchild); | |
265 | signal(SIGHUP, killchild); | |
5260325f | 266 | return 0; |
8efc0c15 | 267 | } |
268 | ||
8efc0c15 | 269 | typedef struct { |
2ceb8101 | 270 | size_t cnt; |
8efc0c15 | 271 | char *buf; |
272 | } BUF; | |
273 | ||
5260325f | 274 | BUF *allocbuf(BUF *, int, int); |
5260325f | 275 | void lostconn(int); |
5260325f | 276 | int okname(char *); |
277 | void run_err(const char *,...); | |
278 | void verifydir(char *); | |
8efc0c15 | 279 | |
8efc0c15 | 280 | struct passwd *pwd; |
5260325f | 281 | uid_t userid; |
8efc0c15 | 282 | int errs, remin, remout; |
283 | int pflag, iamremote, iamrecursive, targetshouldbedirectory; | |
284 | ||
285 | #define CMDNEEDS 64 | |
286 | char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */ | |
287 | ||
5260325f | 288 | int response(void); |
289 | void rsource(char *, struct stat *); | |
290 | void sink(int, char *[]); | |
291 | void source(int, char *[]); | |
292 | void tolocal(int, char *[]); | |
293 | void toremote(char *, int, char *[]); | |
6484acf8 | 294 | size_t scpio(ssize_t (*)(int, void *, size_t), int, void *, size_t, off_t *); |
5260325f | 295 | void usage(void); |
8efc0c15 | 296 | |
297 | int | |
cf3248b8 | 298 | main(int argc, char **argv) |
8efc0c15 | 299 | { |
1879b184 | 300 | int ch, fflag, tflag, status, n; |
6ea3c52a | 301 | double speed; |
1879b184 | 302 | char *targ, *endp, **newargv; |
8efc0c15 | 303 | extern char *optarg; |
304 | extern int optind; | |
305 | ||
fd6168c1 | 306 | /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
307 | sanitise_stdfd(); | |
308 | ||
1879b184 | 309 | /* Copy argv, because we modify it */ |
310 | newargv = xcalloc(MAX(argc + 1, 1), sizeof(*newargv)); | |
311 | for (n = 0; n < argc; n++) | |
312 | newargv[n] = xstrdup(argv[n]); | |
313 | argv = newargv; | |
314 | ||
fda04d7d | 315 | __progname = ssh_get_progname(argv[0]); |
260d427b | 316 | |
4116f5c0 | 317 | memset(&args, '\0', sizeof(args)); |
94ec8c6b | 318 | args.list = NULL; |
4116f5c0 | 319 | addargs(&args, "%s", ssh_program); |
8a624ebf | 320 | addargs(&args, "-x"); |
3a222388 | 321 | addargs(&args, "-oForwardAgent no"); |
d20f3c9e | 322 | addargs(&args, "-oPermitLocalCommand no"); |
e1c5bfaf | 323 | addargs(&args, "-oClearAllForwardings yes"); |
94ec8c6b | 324 | |
8efc0c15 | 325 | fflag = tflag = 0; |
e6b15f23 | 326 | while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q1246S:o:F:")) != -1) |
5260325f | 327 | switch (ch) { |
328 | /* User-visible flags. */ | |
e6b15f23 | 329 | case '1': |
330 | case '2': | |
48e671d5 | 331 | case '4': |
48e671d5 | 332 | case '6': |
94ec8c6b | 333 | case 'C': |
8a624ebf | 334 | addargs(&args, "-%c", ch); |
48e671d5 | 335 | break; |
94ec8c6b | 336 | case 'o': |
337 | case 'c': | |
338 | case 'i': | |
f1278af7 | 339 | case 'F': |
8a624ebf | 340 | addargs(&args, "-%c%s", ch, optarg); |
8efc0c15 | 341 | break; |
342 | case 'P': | |
8a624ebf | 343 | addargs(&args, "-p%s", optarg); |
94ec8c6b | 344 | break; |
345 | case 'B': | |
8a624ebf | 346 | addargs(&args, "-oBatchmode yes"); |
94ec8c6b | 347 | break; |
6ea3c52a | 348 | case 'l': |
349 | speed = strtod(optarg, &endp); | |
350 | if (speed <= 0 || *endp != '\0') | |
351 | usage(); | |
10adbb52 | 352 | limit_rate = speed * 1024; |
6ea3c52a | 353 | break; |
94ec8c6b | 354 | case 'p': |
355 | pflag = 1; | |
5260325f | 356 | break; |
8efc0c15 | 357 | case 'r': |
358 | iamrecursive = 1; | |
359 | break; | |
2e73a022 | 360 | case 'S': |
94ec8c6b | 361 | ssh_program = xstrdup(optarg); |
362 | break; | |
363 | case 'v': | |
4fc334a2 | 364 | addargs(&args, "-v"); |
94ec8c6b | 365 | verbose_mode = 1; |
366 | break; | |
367 | case 'q': | |
15c8e3fd | 368 | addargs(&args, "-q"); |
94ec8c6b | 369 | showprogress = 0; |
2e73a022 | 370 | break; |
371 | ||
5260325f | 372 | /* Server options. */ |
8efc0c15 | 373 | case 'd': |
374 | targetshouldbedirectory = 1; | |
375 | break; | |
5260325f | 376 | case 'f': /* "from" */ |
8efc0c15 | 377 | iamremote = 1; |
378 | fflag = 1; | |
379 | break; | |
5260325f | 380 | case 't': /* "to" */ |
8efc0c15 | 381 | iamremote = 1; |
382 | tflag = 1; | |
fe56c12b | 383 | #ifdef HAVE_CYGWIN |
384 | setmode(0, O_BINARY); | |
385 | #endif | |
8efc0c15 | 386 | break; |
8efc0c15 | 387 | default: |
388 | usage(); | |
389 | } | |
390 | argc -= optind; | |
391 | argv += optind; | |
392 | ||
393 | if ((pwd = getpwuid(userid = getuid())) == NULL) | |
261bd618 | 394 | fatal("unknown user %u", (u_int) userid); |
8efc0c15 | 395 | |
7df0afaf | 396 | if (!isatty(STDOUT_FILENO)) |
8efc0c15 | 397 | showprogress = 0; |
398 | ||
399 | remin = STDIN_FILENO; | |
400 | remout = STDOUT_FILENO; | |
401 | ||
2b87da3b | 402 | if (fflag) { |
5260325f | 403 | /* Follow "protocol", send data. */ |
404 | (void) response(); | |
8efc0c15 | 405 | source(argc, argv); |
406 | exit(errs != 0); | |
407 | } | |
5260325f | 408 | if (tflag) { |
409 | /* Receive data. */ | |
8efc0c15 | 410 | sink(argc, argv); |
411 | exit(errs != 0); | |
412 | } | |
8efc0c15 | 413 | if (argc < 2) |
414 | usage(); | |
415 | if (argc > 2) | |
416 | targetshouldbedirectory = 1; | |
417 | ||
418 | remin = remout = -1; | |
252d1a24 | 419 | do_cmd_pid = -1; |
8efc0c15 | 420 | /* Command to be executed on remote system using "ssh". */ |
0ed28836 | 421 | (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s", |
422 | verbose_mode ? " -v" : "", | |
2e73a022 | 423 | iamrecursive ? " -r" : "", pflag ? " -p" : "", |
424 | targetshouldbedirectory ? " -d" : ""); | |
8efc0c15 | 425 | |
5260325f | 426 | (void) signal(SIGPIPE, lostconn); |
8efc0c15 | 427 | |
428 | if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */ | |
429 | toremote(targ, argc, argv); | |
430 | else { | |
8efc0c15 | 431 | if (targetshouldbedirectory) |
432 | verifydir(argv[argc - 1]); | |
16e8ab10 | 433 | tolocal(argc, argv); /* Dest is local host. */ |
8efc0c15 | 434 | } |
252d1a24 | 435 | /* |
436 | * Finally check the exit status of the ssh process, if one was forked | |
6503dc91 | 437 | * and no error has occurred yet |
252d1a24 | 438 | */ |
439 | if (do_cmd_pid != -1 && errs == 0) { | |
440 | if (remin != -1) | |
441 | (void) close(remin); | |
442 | if (remout != -1) | |
443 | (void) close(remout); | |
444 | if (waitpid(do_cmd_pid, &status, 0) == -1) | |
445 | errs = 1; | |
446 | else { | |
447 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
448 | errs = 1; | |
449 | } | |
450 | } | |
8efc0c15 | 451 | exit(errs != 0); |
452 | } | |
453 | ||
6484acf8 | 454 | /* |
455 | * atomicio-like wrapper that also applies bandwidth limits and updates | |
456 | * the progressmeter counter. | |
457 | */ | |
458 | size_t | |
459 | scpio(ssize_t (*f)(int, void *, size_t), int fd, void *_p, size_t l, off_t *c) | |
460 | { | |
461 | u_char *p = (u_char *)_p; | |
462 | size_t offset; | |
463 | ssize_t r; | |
464 | struct pollfd pfd; | |
465 | ||
466 | pfd.fd = fd; | |
467 | pfd.events = f == read ? POLLIN : POLLOUT; | |
468 | for (offset = 0; offset < l;) { | |
469 | r = f(fd, p + offset, l - offset); | |
470 | if (r == 0) { | |
471 | errno = EPIPE; | |
472 | return offset; | |
473 | } | |
474 | if (r < 0) { | |
475 | if (errno == EINTR) | |
476 | continue; | |
5a0c8771 | 477 | if (errno == EAGAIN || errno == EWOULDBLOCK) { |
6484acf8 | 478 | (void)poll(&pfd, 1, -1); /* Ignore errors */ |
479 | continue; | |
480 | } | |
481 | return offset; | |
482 | } | |
483 | offset += (size_t)r; | |
484 | *c += (off_t)r; | |
485 | if (limit_rate) | |
486 | bwlimit(r); | |
487 | } | |
488 | return offset; | |
489 | } | |
490 | ||
8efc0c15 | 491 | void |
cf3248b8 | 492 | toremote(char *targ, int argc, char **argv) |
8efc0c15 | 493 | { |
99dfaccc | 494 | char *bp, *host, *src, *suser, *thost, *tuser, *arg; |
4116f5c0 | 495 | arglist alist; |
ac93e676 | 496 | int i; |
4116f5c0 | 497 | |
498 | memset(&alist, '\0', sizeof(alist)); | |
499 | alist.list = NULL; | |
8efc0c15 | 500 | |
501 | *targ++ = 0; | |
502 | if (*targ == 0) | |
503 | targ = "."; | |
504 | ||
ae0d2f42 | 505 | arg = xstrdup(argv[argc - 1]); |
99dfaccc | 506 | if ((thost = strrchr(arg, '@'))) { |
8efc0c15 | 507 | /* user@host */ |
508 | *thost++ = 0; | |
99dfaccc | 509 | tuser = arg; |
8efc0c15 | 510 | if (*tuser == '\0') |
511 | tuser = NULL; | |
8efc0c15 | 512 | } else { |
99dfaccc | 513 | thost = arg; |
8efc0c15 | 514 | tuser = NULL; |
515 | } | |
516 | ||
4116f5c0 | 517 | if (tuser != NULL && !okname(tuser)) { |
518 | xfree(arg); | |
519 | return; | |
520 | } | |
521 | ||
8efc0c15 | 522 | for (i = 0; i < argc - 1; i++) { |
523 | src = colon(argv[i]); | |
5260325f | 524 | if (src) { /* remote to remote */ |
4116f5c0 | 525 | freeargs(&alist); |
526 | addargs(&alist, "%s", ssh_program); | |
527 | if (verbose_mode) | |
528 | addargs(&alist, "-v"); | |
529 | addargs(&alist, "-x"); | |
530 | addargs(&alist, "-oClearAllForwardings yes"); | |
531 | addargs(&alist, "-n"); | |
532 | ||
8efc0c15 | 533 | *src++ = 0; |
534 | if (*src == 0) | |
535 | src = "."; | |
15748b4d | 536 | host = strrchr(argv[i], '@'); |
4116f5c0 | 537 | |
8efc0c15 | 538 | if (host) { |
539 | *host++ = 0; | |
48e671d5 | 540 | host = cleanhostname(host); |
8efc0c15 | 541 | suser = argv[i]; |
542 | if (*suser == '\0') | |
543 | suser = pwd->pw_name; | |
4116f5c0 | 544 | else if (!okname(suser)) |
0ec7661a | 545 | continue; |
4116f5c0 | 546 | addargs(&alist, "-l"); |
547 | addargs(&alist, "%s", suser); | |
48e671d5 | 548 | } else { |
549 | host = cleanhostname(argv[i]); | |
48e671d5 | 550 | } |
4116f5c0 | 551 | addargs(&alist, "%s", host); |
552 | addargs(&alist, "%s", cmd); | |
553 | addargs(&alist, "%s", src); | |
554 | addargs(&alist, "%s%s%s:%s", | |
555 | tuser ? tuser : "", tuser ? "@" : "", | |
556 | thost, targ); | |
557 | if (do_local_cmd(&alist) != 0) | |
815a8407 | 558 | errs = 1; |
5260325f | 559 | } else { /* local to remote */ |
8efc0c15 | 560 | if (remin == -1) { |
c0a8e7bb | 561 | xasprintf(&bp, "%s -t %s", cmd, targ); |
48e671d5 | 562 | host = cleanhostname(thost); |
2e73a022 | 563 | if (do_cmd(host, tuser, bp, &remin, |
ac93e676 | 564 | &remout) < 0) |
5260325f | 565 | exit(1); |
8efc0c15 | 566 | if (response() < 0) |
567 | exit(1); | |
5260325f | 568 | (void) xfree(bp); |
8efc0c15 | 569 | } |
5260325f | 570 | source(1, argv + i); |
8efc0c15 | 571 | } |
572 | } | |
2b8dc5e3 | 573 | xfree(arg); |
8efc0c15 | 574 | } |
575 | ||
576 | void | |
cf3248b8 | 577 | tolocal(int argc, char **argv) |
8efc0c15 | 578 | { |
8efc0c15 | 579 | char *bp, *host, *src, *suser; |
4116f5c0 | 580 | arglist alist; |
ac93e676 | 581 | int i; |
4116f5c0 | 582 | |
583 | memset(&alist, '\0', sizeof(alist)); | |
584 | alist.list = NULL; | |
8efc0c15 | 585 | |
586 | for (i = 0; i < argc - 1; i++) { | |
5260325f | 587 | if (!(src = colon(argv[i]))) { /* Local to local. */ |
4116f5c0 | 588 | freeargs(&alist); |
589 | addargs(&alist, "%s", _PATH_CP); | |
590 | if (iamrecursive) | |
591 | addargs(&alist, "-r"); | |
592 | if (pflag) | |
593 | addargs(&alist, "-p"); | |
594 | addargs(&alist, "%s", argv[i]); | |
595 | addargs(&alist, "%s", argv[argc-1]); | |
596 | if (do_local_cmd(&alist)) | |
8efc0c15 | 597 | ++errs; |
8efc0c15 | 598 | continue; |
599 | } | |
600 | *src++ = 0; | |
601 | if (*src == 0) | |
602 | src = "."; | |
15748b4d | 603 | if ((host = strrchr(argv[i], '@')) == NULL) { |
8efc0c15 | 604 | host = argv[i]; |
605 | suser = NULL; | |
606 | } else { | |
607 | *host++ = 0; | |
608 | suser = argv[i]; | |
609 | if (*suser == '\0') | |
610 | suser = pwd->pw_name; | |
8efc0c15 | 611 | } |
48e671d5 | 612 | host = cleanhostname(host); |
c0a8e7bb | 613 | xasprintf(&bp, "%s -f %s", cmd, src); |
ac93e676 | 614 | if (do_cmd(host, suser, bp, &remin, &remout) < 0) { |
5260325f | 615 | (void) xfree(bp); |
616 | ++errs; | |
617 | continue; | |
8efc0c15 | 618 | } |
5260325f | 619 | xfree(bp); |
8efc0c15 | 620 | sink(1, argv + argc - 1); |
5260325f | 621 | (void) close(remin); |
8efc0c15 | 622 | remin = remout = -1; |
623 | } | |
624 | } | |
625 | ||
626 | void | |
cf3248b8 | 627 | source(int argc, char **argv) |
8efc0c15 | 628 | { |
629 | struct stat stb; | |
630 | static BUF buffer; | |
631 | BUF *bp; | |
a15e7da1 | 632 | off_t i, statbytes; |
633 | size_t amt; | |
a056dfa2 | 634 | int fd = -1, haderr, indx; |
5be98986 | 635 | char *last, *name, buf[2048], encname[MAXPATHLEN]; |
0fc791ba | 636 | int len; |
8efc0c15 | 637 | |
638 | for (indx = 0; indx < argc; ++indx) { | |
5260325f | 639 | name = argv[indx]; |
8efc0c15 | 640 | statbytes = 0; |
0fc791ba | 641 | len = strlen(name); |
642 | while (len > 1 && name[len-1] == '/') | |
643 | name[--len] = '\0'; | |
4634ee16 | 644 | if ((fd = open(name, O_RDONLY|O_NONBLOCK, 0)) < 0) |
8efc0c15 | 645 | goto syserr; |
5be98986 | 646 | if (strchr(name, '\n') != NULL) { |
647 | strnvis(encname, name, sizeof(encname), VIS_NL); | |
648 | name = encname; | |
649 | } | |
8efc0c15 | 650 | if (fstat(fd, &stb) < 0) { |
651 | syserr: run_err("%s: %s", name, strerror(errno)); | |
652 | goto next; | |
653 | } | |
a15e7da1 | 654 | if (stb.st_size < 0) { |
655 | run_err("%s: %s", name, "Negative file size"); | |
656 | goto next; | |
657 | } | |
4634ee16 | 658 | unset_nonblock(fd); |
8efc0c15 | 659 | switch (stb.st_mode & S_IFMT) { |
660 | case S_IFREG: | |
661 | break; | |
662 | case S_IFDIR: | |
663 | if (iamrecursive) { | |
664 | rsource(name, &stb); | |
665 | goto next; | |
666 | } | |
667 | /* FALLTHROUGH */ | |
668 | default: | |
669 | run_err("%s: not a regular file", name); | |
670 | goto next; | |
671 | } | |
672 | if ((last = strrchr(name, '/')) == NULL) | |
673 | last = name; | |
674 | else | |
675 | ++last; | |
676 | curfile = last; | |
677 | if (pflag) { | |
678 | /* | |
679 | * Make it compatible with possible future | |
680 | * versions expecting microseconds. | |
681 | */ | |
0ed28836 | 682 | (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n", |
415e3743 | 683 | (u_long) (stb.st_mtime < 0 ? 0 : stb.st_mtime), |
684 | (u_long) (stb.st_atime < 0 ? 0 : stb.st_atime)); | |
685 | if (verbose_mode) { | |
686 | fprintf(stderr, "File mtime %ld atime %ld\n", | |
687 | (long)stb.st_mtime, (long)stb.st_atime); | |
688 | fprintf(stderr, "Sending file timestamps: %s", | |
689 | buf); | |
690 | } | |
dc54438a | 691 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
8efc0c15 | 692 | if (response() < 0) |
693 | goto next; | |
694 | } | |
695 | #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) | |
bf1d27bd | 696 | snprintf(buf, sizeof buf, "C%04o %lld %s\n", |
1e3b8b07 | 697 | (u_int) (stb.st_mode & FILEMODEMASK), |
419094c6 | 698 | (long long)stb.st_size, last); |
5260325f | 699 | if (verbose_mode) { |
700 | fprintf(stderr, "Sending file modes: %s", buf); | |
5260325f | 701 | } |
dc54438a | 702 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
8efc0c15 | 703 | if (response() < 0) |
704 | goto next; | |
6484acf8 | 705 | if ((bp = allocbuf(&buffer, fd, COPY_BUFLEN)) == NULL) { |
29accf74 | 706 | next: if (fd != -1) { |
707 | (void) close(fd); | |
708 | fd = -1; | |
709 | } | |
8efc0c15 | 710 | continue; |
711 | } | |
b65c3807 | 712 | if (showprogress) |
713 | start_progress_meter(curfile, stb.st_size, &statbytes); | |
6484acf8 | 714 | set_nonblock(remout); |
8efc0c15 | 715 | for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { |
716 | amt = bp->cnt; | |
a15e7da1 | 717 | if (i + (off_t)amt > stb.st_size) |
8efc0c15 | 718 | amt = stb.st_size - i; |
719 | if (!haderr) { | |
6484acf8 | 720 | if (atomicio(read, fd, bp->buf, amt) != amt) |
05624c18 | 721 | haderr = errno; |
8efc0c15 | 722 | } |
6484acf8 | 723 | /* Keep writing after error to retain sync */ |
724 | if (haderr) { | |
725 | (void)atomicio(vwrite, remout, bp->buf, amt); | |
726 | continue; | |
8efc0c15 | 727 | } |
6484acf8 | 728 | if (scpio(vwrite, remout, bp->buf, amt, |
729 | &statbytes) != amt) | |
730 | haderr = errno; | |
8efc0c15 | 731 | } |
6484acf8 | 732 | unset_nonblock(remout); |
5260325f | 733 | if (showprogress) |
b65c3807 | 734 | stop_progress_meter(); |
8efc0c15 | 735 | |
29accf74 | 736 | if (fd != -1) { |
737 | if (close(fd) < 0 && !haderr) | |
738 | haderr = errno; | |
739 | fd = -1; | |
740 | } | |
8efc0c15 | 741 | if (!haderr) |
dc54438a | 742 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 743 | else |
744 | run_err("%s: %s", name, strerror(haderr)); | |
5260325f | 745 | (void) response(); |
8efc0c15 | 746 | } |
747 | } | |
748 | ||
749 | void | |
cf3248b8 | 750 | rsource(char *name, struct stat *statp) |
8efc0c15 | 751 | { |
752 | DIR *dirp; | |
753 | struct dirent *dp; | |
754 | char *last, *vect[1], path[1100]; | |
755 | ||
756 | if (!(dirp = opendir(name))) { | |
757 | run_err("%s: %s", name, strerror(errno)); | |
758 | return; | |
759 | } | |
760 | last = strrchr(name, '/'); | |
761 | if (last == 0) | |
762 | last = name; | |
763 | else | |
764 | last++; | |
765 | if (pflag) { | |
0ed28836 | 766 | (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n", |
1e3b8b07 | 767 | (u_long) statp->st_mtime, |
768 | (u_long) statp->st_atime); | |
dc54438a | 769 | (void) atomicio(vwrite, remout, path, strlen(path)); |
8efc0c15 | 770 | if (response() < 0) { |
771 | closedir(dirp); | |
772 | return; | |
773 | } | |
774 | } | |
0ed28836 | 775 | (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n", |
1e3b8b07 | 776 | (u_int) (statp->st_mode & FILEMODEMASK), 0, last); |
5260325f | 777 | if (verbose_mode) |
778 | fprintf(stderr, "Entering directory: %s", path); | |
dc54438a | 779 | (void) atomicio(vwrite, remout, path, strlen(path)); |
8efc0c15 | 780 | if (response() < 0) { |
781 | closedir(dirp); | |
782 | return; | |
783 | } | |
e5ff6ecf | 784 | while ((dp = readdir(dirp)) != NULL) { |
8efc0c15 | 785 | if (dp->d_ino == 0) |
786 | continue; | |
787 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) | |
788 | continue; | |
789 | if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) { | |
790 | run_err("%s/%s: name too long", name, dp->d_name); | |
791 | continue; | |
792 | } | |
0ed28836 | 793 | (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name); |
8efc0c15 | 794 | vect[0] = path; |
795 | source(1, vect); | |
796 | } | |
5260325f | 797 | (void) closedir(dirp); |
dc54438a | 798 | (void) atomicio(vwrite, remout, "E\n", 2); |
5260325f | 799 | (void) response(); |
8efc0c15 | 800 | } |
801 | ||
6ea3c52a | 802 | void |
803 | bwlimit(int amount) | |
804 | { | |
805 | static struct timeval bwstart, bwend; | |
806 | static int lamt, thresh = 16384; | |
ca75d7de | 807 | u_int64_t waitlen; |
6ea3c52a | 808 | struct timespec ts, rm; |
809 | ||
810 | if (!timerisset(&bwstart)) { | |
811 | gettimeofday(&bwstart, NULL); | |
812 | return; | |
813 | } | |
814 | ||
815 | lamt += amount; | |
816 | if (lamt < thresh) | |
817 | return; | |
818 | ||
819 | gettimeofday(&bwend, NULL); | |
820 | timersub(&bwend, &bwstart, &bwend); | |
821 | if (!timerisset(&bwend)) | |
822 | return; | |
823 | ||
824 | lamt *= 8; | |
ca75d7de | 825 | waitlen = (double)1000000L * lamt / limit_rate; |
6ea3c52a | 826 | |
ca75d7de | 827 | bwstart.tv_sec = waitlen / 1000000L; |
828 | bwstart.tv_usec = waitlen % 1000000L; | |
6ea3c52a | 829 | |
830 | if (timercmp(&bwstart, &bwend, >)) { | |
831 | timersub(&bwstart, &bwend, &bwend); | |
832 | ||
833 | /* Adjust the wait time */ | |
834 | if (bwend.tv_sec) { | |
835 | thresh /= 2; | |
836 | if (thresh < 2048) | |
837 | thresh = 2048; | |
6484acf8 | 838 | } else if (bwend.tv_usec < 10000) { |
6ea3c52a | 839 | thresh *= 2; |
6484acf8 | 840 | if (thresh > COPY_BUFLEN * 4) |
841 | thresh = COPY_BUFLEN * 4; | |
6ea3c52a | 842 | } |
843 | ||
844 | TIMEVAL_TO_TIMESPEC(&bwend, &ts); | |
845 | while (nanosleep(&ts, &rm) == -1) { | |
846 | if (errno != EINTR) | |
847 | break; | |
848 | ts = rm; | |
849 | } | |
850 | } | |
851 | ||
852 | lamt = 0; | |
853 | gettimeofday(&bwstart, NULL); | |
854 | } | |
855 | ||
8efc0c15 | 856 | void |
cf3248b8 | 857 | sink(int argc, char **argv) |
8efc0c15 | 858 | { |
859 | static BUF buffer; | |
860 | struct stat stb; | |
5260325f | 861 | enum { |
862 | YES, NO, DISPLAYED | |
863 | } wrerr; | |
8efc0c15 | 864 | BUF *bp; |
05624c18 | 865 | off_t i; |
2ceb8101 | 866 | size_t j, count; |
ac93e676 | 867 | int amt, exists, first, ofd; |
868 | mode_t mode, omode, mask; | |
b65c3807 | 869 | off_t size, statbytes; |
14a9a859 | 870 | int setimes, targisdir, wrerrno = 0; |
8efc0c15 | 871 | char ch, *cp, *np, *targ, *why, *vect[1], buf[2048]; |
188adeb2 | 872 | struct timeval tv[2]; |
8efc0c15 | 873 | |
36967a16 | 874 | #define atime tv[0] |
875 | #define mtime tv[1] | |
007607ab | 876 | #define SCREWUP(str) { why = str; goto screwup; } |
8efc0c15 | 877 | |
878 | setimes = targisdir = 0; | |
879 | mask = umask(0); | |
880 | if (!pflag) | |
5260325f | 881 | (void) umask(mask); |
8efc0c15 | 882 | if (argc != 1) { |
883 | run_err("ambiguous target"); | |
884 | exit(1); | |
885 | } | |
886 | targ = *argv; | |
887 | if (targetshouldbedirectory) | |
888 | verifydir(targ); | |
5260325f | 889 | |
dc54438a | 890 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 891 | if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) |
892 | targisdir = 1; | |
893 | for (first = 1;; first = 0) { | |
894 | cp = buf; | |
05624c18 | 895 | if (atomicio(read, remin, cp, 1) != 1) |
8efc0c15 | 896 | return; |
897 | if (*cp++ == '\n') | |
898 | SCREWUP("unexpected <newline>"); | |
899 | do { | |
1d1ffb87 | 900 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 901 | SCREWUP("lost connection"); |
902 | *cp++ = ch; | |
903 | } while (cp < &buf[sizeof(buf) - 1] && ch != '\n'); | |
904 | *cp = 0; | |
f09aa22c | 905 | if (verbose_mode) |
906 | fprintf(stderr, "Sink: %s", buf); | |
8efc0c15 | 907 | |
908 | if (buf[0] == '\01' || buf[0] == '\02') { | |
909 | if (iamremote == 0) | |
dc54438a | 910 | (void) atomicio(vwrite, STDERR_FILENO, |
71c0d06a | 911 | buf + 1, strlen(buf + 1)); |
8efc0c15 | 912 | if (buf[0] == '\02') |
913 | exit(1); | |
914 | ++errs; | |
915 | continue; | |
916 | } | |
917 | if (buf[0] == 'E') { | |
dc54438a | 918 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 919 | return; |
920 | } | |
8efc0c15 | 921 | if (ch == '\n') |
922 | *--cp = 0; | |
923 | ||
8efc0c15 | 924 | cp = buf; |
925 | if (*cp == 'T') { | |
926 | setimes++; | |
927 | cp++; | |
36967a16 | 928 | mtime.tv_sec = strtol(cp, &cp, 10); |
929 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 930 | SCREWUP("mtime.sec not delimited"); |
36967a16 | 931 | mtime.tv_usec = strtol(cp, &cp, 10); |
932 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 933 | SCREWUP("mtime.usec not delimited"); |
36967a16 | 934 | atime.tv_sec = strtol(cp, &cp, 10); |
935 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 936 | SCREWUP("atime.sec not delimited"); |
36967a16 | 937 | atime.tv_usec = strtol(cp, &cp, 10); |
938 | if (!cp || *cp++ != '\0') | |
8efc0c15 | 939 | SCREWUP("atime.usec not delimited"); |
dc54438a | 940 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 941 | continue; |
942 | } | |
943 | if (*cp != 'C' && *cp != 'D') { | |
944 | /* | |
945 | * Check for the case "rcp remote:foo\* local:bar". | |
946 | * In this case, the line "No match." can be returned | |
947 | * by the shell before the rcp command on the remote is | |
948 | * executed so the ^Aerror_message convention isn't | |
949 | * followed. | |
950 | */ | |
951 | if (first) { | |
952 | run_err("%s", cp); | |
953 | exit(1); | |
954 | } | |
955 | SCREWUP("expected control record"); | |
956 | } | |
957 | mode = 0; | |
958 | for (++cp; cp < buf + 5; cp++) { | |
959 | if (*cp < '0' || *cp > '7') | |
960 | SCREWUP("bad mode"); | |
961 | mode = (mode << 3) | (*cp - '0'); | |
962 | } | |
963 | if (*cp++ != ' ') | |
964 | SCREWUP("mode not delimited"); | |
965 | ||
e5ff6ecf | 966 | for (size = 0; isdigit(*cp);) |
8efc0c15 | 967 | size = size * 10 + (*cp++ - '0'); |
968 | if (*cp++ != ' ') | |
969 | SCREWUP("size not delimited"); | |
f09aa22c | 970 | if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) { |
971 | run_err("error: unexpected filename: %s", cp); | |
972 | exit(1); | |
973 | } | |
8efc0c15 | 974 | if (targisdir) { |
975 | static char *namebuf; | |
2ceb8101 | 976 | static size_t cursize; |
8efc0c15 | 977 | size_t need; |
978 | ||
979 | need = strlen(targ) + strlen(cp) + 250; | |
0ed28836 | 980 | if (need > cursize) { |
981 | if (namebuf) | |
982 | xfree(namebuf); | |
5260325f | 983 | namebuf = xmalloc(need); |
0ed28836 | 984 | cursize = need; |
985 | } | |
986 | (void) snprintf(namebuf, need, "%s%s%s", targ, | |
39f9599a | 987 | strcmp(targ, "/") ? "/" : "", cp); |
8efc0c15 | 988 | np = namebuf; |
989 | } else | |
990 | np = targ; | |
991 | curfile = cp; | |
992 | exists = stat(np, &stb) == 0; | |
993 | if (buf[0] == 'D') { | |
994 | int mod_flag = pflag; | |
f09aa22c | 995 | if (!iamrecursive) |
996 | SCREWUP("received directory without -r"); | |
8efc0c15 | 997 | if (exists) { |
998 | if (!S_ISDIR(stb.st_mode)) { | |
999 | errno = ENOTDIR; | |
1000 | goto bad; | |
1001 | } | |
1002 | if (pflag) | |
5260325f | 1003 | (void) chmod(np, mode); |
8efc0c15 | 1004 | } else { |
5260325f | 1005 | /* Handle copying from a read-only |
1006 | directory */ | |
8efc0c15 | 1007 | mod_flag = 1; |
1008 | if (mkdir(np, mode | S_IRWXU) < 0) | |
1009 | goto bad; | |
1010 | } | |
5c470997 | 1011 | vect[0] = xstrdup(np); |
8efc0c15 | 1012 | sink(1, vect); |
1013 | if (setimes) { | |
1014 | setimes = 0; | |
e68225b2 | 1015 | if (utimes(vect[0], tv) < 0) |
5260325f | 1016 | run_err("%s: set times: %s", |
e68225b2 | 1017 | vect[0], strerror(errno)); |
8efc0c15 | 1018 | } |
1019 | if (mod_flag) | |
e68225b2 | 1020 | (void) chmod(vect[0], mode); |
1021 | if (vect[0]) | |
1022 | xfree(vect[0]); | |
8efc0c15 | 1023 | continue; |
1024 | } | |
1025 | omode = mode; | |
1026 | mode |= S_IWRITE; | |
3e4fc5f9 | 1027 | if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { |
8efc0c15 | 1028 | bad: run_err("%s: %s", np, strerror(errno)); |
1029 | continue; | |
1030 | } | |
dc54438a | 1031 | (void) atomicio(vwrite, remout, "", 1); |
6484acf8 | 1032 | if ((bp = allocbuf(&buffer, ofd, COPY_BUFLEN)) == NULL) { |
5260325f | 1033 | (void) close(ofd); |
8efc0c15 | 1034 | continue; |
1035 | } | |
1036 | cp = bp->buf; | |
1037 | wrerr = NO; | |
1038 | ||
8efc0c15 | 1039 | statbytes = 0; |
b65c3807 | 1040 | if (showprogress) |
1041 | start_progress_meter(curfile, size, &statbytes); | |
6484acf8 | 1042 | set_nonblock(remin); |
1043 | for (count = i = 0; i < size; i += bp->cnt) { | |
1044 | amt = bp->cnt; | |
8efc0c15 | 1045 | if (i + amt > size) |
1046 | amt = size - i; | |
1047 | count += amt; | |
1048 | do { | |
6484acf8 | 1049 | j = scpio(read, remin, cp, amt, &statbytes); |
05624c18 | 1050 | if (j == 0) { |
6484acf8 | 1051 | run_err("%s", j != EPIPE ? |
1052 | strerror(errno) : | |
e5ff6ecf | 1053 | "dropped connection"); |
8efc0c15 | 1054 | exit(1); |
1055 | } | |
1056 | amt -= j; | |
1057 | cp += j; | |
8efc0c15 | 1058 | } while (amt > 0); |
b6453d99 | 1059 | |
8efc0c15 | 1060 | if (count == bp->cnt) { |
1061 | /* Keep reading so we stay sync'd up. */ | |
1062 | if (wrerr == NO) { | |
05624c18 | 1063 | if (atomicio(vwrite, ofd, bp->buf, |
1064 | count) != count) { | |
8efc0c15 | 1065 | wrerr = YES; |
05624c18 | 1066 | wrerrno = errno; |
8efc0c15 | 1067 | } |
1068 | } | |
1069 | count = 0; | |
1070 | cp = bp->buf; | |
1071 | } | |
1072 | } | |
6484acf8 | 1073 | unset_nonblock(remin); |
8efc0c15 | 1074 | if (showprogress) |
b65c3807 | 1075 | stop_progress_meter(); |
8efc0c15 | 1076 | if (count != 0 && wrerr == NO && |
05624c18 | 1077 | atomicio(vwrite, ofd, bp->buf, count) != count) { |
8efc0c15 | 1078 | wrerr = YES; |
05624c18 | 1079 | wrerrno = errno; |
8efc0c15 | 1080 | } |
91044296 | 1081 | if (wrerr == NO && (!exists || S_ISREG(stb.st_mode)) && |
1082 | ftruncate(ofd, size) != 0) { | |
8efc0c15 | 1083 | run_err("%s: truncate: %s", np, strerror(errno)); |
1084 | wrerr = DISPLAYED; | |
1085 | } | |
8efc0c15 | 1086 | if (pflag) { |
1087 | if (exists || omode != mode) | |
77bb0bca | 1088 | #ifdef HAVE_FCHMOD |
7e693c81 | 1089 | if (fchmod(ofd, omode)) { |
77bb0bca | 1090 | #else /* HAVE_FCHMOD */ |
7e693c81 | 1091 | if (chmod(np, omode)) { |
77bb0bca | 1092 | #endif /* HAVE_FCHMOD */ |
8efc0c15 | 1093 | run_err("%s: set mode: %s", |
e5ff6ecf | 1094 | np, strerror(errno)); |
7e693c81 | 1095 | wrerr = DISPLAYED; |
1096 | } | |
8efc0c15 | 1097 | } else { |
1098 | if (!exists && omode != mode) | |
77bb0bca | 1099 | #ifdef HAVE_FCHMOD |
7e693c81 | 1100 | if (fchmod(ofd, omode & ~mask)) { |
77bb0bca | 1101 | #else /* HAVE_FCHMOD */ |
7e693c81 | 1102 | if (chmod(np, omode & ~mask)) { |
77bb0bca | 1103 | #endif /* HAVE_FCHMOD */ |
8efc0c15 | 1104 | run_err("%s: set mode: %s", |
e5ff6ecf | 1105 | np, strerror(errno)); |
7e693c81 | 1106 | wrerr = DISPLAYED; |
1107 | } | |
8efc0c15 | 1108 | } |
704b1659 | 1109 | if (close(ofd) == -1) { |
1110 | wrerr = YES; | |
1111 | wrerrno = errno; | |
1112 | } | |
5260325f | 1113 | (void) response(); |
8efc0c15 | 1114 | if (setimes && wrerr == NO) { |
1115 | setimes = 0; | |
188adeb2 | 1116 | if (utimes(np, tv) < 0) { |
8efc0c15 | 1117 | run_err("%s: set times: %s", |
e5ff6ecf | 1118 | np, strerror(errno)); |
8efc0c15 | 1119 | wrerr = DISPLAYED; |
1120 | } | |
1121 | } | |
5260325f | 1122 | switch (wrerr) { |
8efc0c15 | 1123 | case YES: |
1124 | run_err("%s: %s", np, strerror(wrerrno)); | |
1125 | break; | |
1126 | case NO: | |
dc54438a | 1127 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 1128 | break; |
1129 | case DISPLAYED: | |
1130 | break; | |
1131 | } | |
1132 | } | |
1133 | screwup: | |
1134 | run_err("protocol error: %s", why); | |
1135 | exit(1); | |
1136 | } | |
1137 | ||
1138 | int | |
d5bb9418 | 1139 | response(void) |
8efc0c15 | 1140 | { |
1141 | char ch, *cp, resp, rbuf[2048]; | |
1142 | ||
1d1ffb87 | 1143 | if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp)) |
8efc0c15 | 1144 | lostconn(0); |
1145 | ||
1146 | cp = rbuf; | |
5260325f | 1147 | switch (resp) { |
1148 | case 0: /* ok */ | |
8efc0c15 | 1149 | return (0); |
1150 | default: | |
1151 | *cp++ = resp; | |
1152 | /* FALLTHROUGH */ | |
5260325f | 1153 | case 1: /* error, followed by error msg */ |
1154 | case 2: /* fatal error, "" */ | |
8efc0c15 | 1155 | do { |
1d1ffb87 | 1156 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 1157 | lostconn(0); |
1158 | *cp++ = ch; | |
1159 | } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n'); | |
1160 | ||
1161 | if (!iamremote) | |
dc54438a | 1162 | (void) atomicio(vwrite, STDERR_FILENO, rbuf, cp - rbuf); |
8efc0c15 | 1163 | ++errs; |
1164 | if (resp == 1) | |
1165 | return (-1); | |
1166 | exit(1); | |
1167 | } | |
1168 | /* NOTREACHED */ | |
1169 | } | |
1170 | ||
1171 | void | |
d5bb9418 | 1172 | usage(void) |
8efc0c15 | 1173 | { |
f1278af7 | 1174 | (void) fprintf(stderr, |
433e60ac | 1175 | "usage: scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]\n" |
1176 | " [-l limit] [-o ssh_option] [-P port] [-S program]\n" | |
d0ac0d65 | 1177 | " [[user@]host1:]file1 ... [[user@]host2:]file2\n"); |
8efc0c15 | 1178 | exit(1); |
1179 | } | |
1180 | ||
1181 | void | |
5260325f | 1182 | run_err(const char *fmt,...) |
8efc0c15 | 1183 | { |
1184 | static FILE *fp; | |
1185 | va_list ap; | |
8efc0c15 | 1186 | |
1187 | ++errs; | |
d6157b67 | 1188 | if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) { |
1189 | (void) fprintf(fp, "%c", 0x01); | |
1190 | (void) fprintf(fp, "scp: "); | |
1191 | va_start(ap, fmt); | |
1192 | (void) vfprintf(fp, fmt, ap); | |
1193 | va_end(ap); | |
1194 | (void) fprintf(fp, "\n"); | |
1195 | (void) fflush(fp); | |
1196 | } | |
5260325f | 1197 | |
1198 | if (!iamremote) { | |
b92964b7 | 1199 | va_start(ap, fmt); |
5260325f | 1200 | vfprintf(stderr, fmt, ap); |
b92964b7 | 1201 | va_end(ap); |
5260325f | 1202 | fprintf(stderr, "\n"); |
1203 | } | |
8efc0c15 | 1204 | } |
1205 | ||
8efc0c15 | 1206 | void |
cf3248b8 | 1207 | verifydir(char *cp) |
8efc0c15 | 1208 | { |
1209 | struct stat stb; | |
1210 | ||
1211 | if (!stat(cp, &stb)) { | |
1212 | if (S_ISDIR(stb.st_mode)) | |
1213 | return; | |
1214 | errno = ENOTDIR; | |
1215 | } | |
1216 | run_err("%s: %s", cp, strerror(errno)); | |
8f4ab41b | 1217 | killchild(0); |
8efc0c15 | 1218 | } |
1219 | ||
1220 | int | |
cf3248b8 | 1221 | okname(char *cp0) |
8efc0c15 | 1222 | { |
1223 | int c; | |
1224 | char *cp; | |
1225 | ||
1226 | cp = cp0; | |
1227 | do { | |
cb220a93 | 1228 | c = (int)*cp; |
8efc0c15 | 1229 | if (c & 0200) |
1230 | goto bad; | |
0ec7661a | 1231 | if (!isalpha(c) && !isdigit(c)) { |
1232 | switch (c) { | |
1233 | case '\'': | |
1234 | case '"': | |
1235 | case '`': | |
1236 | case ' ': | |
1237 | case '#': | |
1238 | goto bad; | |
1239 | default: | |
1240 | break; | |
1241 | } | |
1242 | } | |
8efc0c15 | 1243 | } while (*++cp); |
1244 | return (1); | |
1245 | ||
c8d54615 | 1246 | bad: fprintf(stderr, "%s: invalid user name\n", cp0); |
8efc0c15 | 1247 | return (0); |
1248 | } | |
1249 | ||
1250 | BUF * | |
cf3248b8 | 1251 | allocbuf(BUF *bp, int fd, int blksize) |
8efc0c15 | 1252 | { |
1253 | size_t size; | |
98a7c37b | 1254 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE |
8efc0c15 | 1255 | struct stat stb; |
1256 | ||
1257 | if (fstat(fd, &stb) < 0) { | |
1258 | run_err("fstat: %s", strerror(errno)); | |
1259 | return (0); | |
1260 | } | |
a0a14bcd | 1261 | size = roundup(stb.st_blksize, blksize); |
1262 | if (size == 0) | |
5260325f | 1263 | size = blksize; |
98a7c37b | 1264 | #else /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
2b87da3b | 1265 | size = blksize; |
98a7c37b | 1266 | #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
8efc0c15 | 1267 | if (bp->cnt >= size) |
1268 | return (bp); | |
5260325f | 1269 | if (bp->buf == NULL) |
1270 | bp->buf = xmalloc(size); | |
1271 | else | |
c5d10563 | 1272 | bp->buf = xrealloc(bp->buf, 1, size); |
46660a9e | 1273 | memset(bp->buf, 0, size); |
8efc0c15 | 1274 | bp->cnt = size; |
1275 | return (bp); | |
1276 | } | |
1277 | ||
1278 | void | |
cf3248b8 | 1279 | lostconn(int signo) |
8efc0c15 | 1280 | { |
1281 | if (!iamremote) | |
08c260ea | 1282 | write(STDERR_FILENO, "lost connection\n", 16); |
1283 | if (signo) | |
1284 | _exit(1); | |
1285 | else | |
1286 | exit(1); | |
8efc0c15 | 1287 | } |