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16eb0a3b | 1 | /* $OpenBSD: scp.c,v 1.164 2008/10/10 04:55:16 stevesk Exp $ */ |
3c0ef626 | 2 | /* |
3 | * scp - secure remote copy. This is basically patched BSD rcp which | |
4 | * uses ssh to do the data transfer (instead of using rcmd). | |
5 | * | |
6 | * NOTE: This version should NOT be suid root. (This uses ssh to | |
7 | * do the transfer and ssh has the necessary privileges.) | |
8 | * | |
9 | * 1995 Timo Rinne <tri@iki.fi>, Tatu Ylonen <ylo@cs.hut.fi> | |
10 | * | |
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 | /* | |
18 | * Copyright (c) 1999 Theo de Raadt. All rights reserved. | |
19 | * Copyright (c) 1999 Aaron Campbell. All rights reserved. | |
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 | */ | |
41 | ||
42 | /* | |
43 | * Parts from: | |
44 | * | |
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. | |
70791e56 | 56 | * 3. Neither the name of the University nor the names of its contributors |
3c0ef626 | 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 | * | |
72 | */ | |
73 | ||
74 | #include "includes.h" | |
2e437378 | 75 | |
76 | #include <sys/types.h> | |
77 | #include <sys/param.h> | |
78 | #ifdef HAVE_SYS_STAT_H | |
79 | # include <sys/stat.h> | |
80 | #endif | |
bd5d5d2a | 81 | #ifdef HAVE_POLL_H |
82 | #include <poll.h> | |
83 | #else | |
84 | # ifdef HAVE_SYS_POLL_H | |
85 | # include <sys/poll.h> | |
86 | # endif | |
87 | #endif | |
2e437378 | 88 | #ifdef HAVE_SYS_TIME_H |
89 | # include <sys/time.h> | |
90 | #endif | |
91 | #include <sys/wait.h> | |
92 | #include <sys/uio.h> | |
93 | ||
94 | #include <ctype.h> | |
95 | #include <dirent.h> | |
96 | #include <errno.h> | |
97 | #include <fcntl.h> | |
98 | #include <pwd.h> | |
99 | #include <signal.h> | |
100 | #include <stdarg.h> | |
101 | #include <stdio.h> | |
102 | #include <stdlib.h> | |
103 | #include <string.h> | |
104 | #include <time.h> | |
105 | #include <unistd.h> | |
25d429a2 | 106 | #if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H) |
107 | #include <vis.h> | |
108 | #endif | |
3c0ef626 | 109 | |
110 | #include "xmalloc.h" | |
111 | #include "atomicio.h" | |
112 | #include "pathnames.h" | |
113 | #include "log.h" | |
114 | #include "misc.h" | |
1c14df9e | 115 | #include "progressmeter.h" |
3c0ef626 | 116 | |
3c0ef626 | 117 | extern char *__progname; |
3c0ef626 | 118 | |
bd5d5d2a | 119 | #define COPY_BUFLEN 16384 |
120 | ||
2e437378 | 121 | int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout); |
122 | ||
1c14df9e | 123 | void bwlimit(int); |
3c0ef626 | 124 | |
125 | /* Struct for addargs */ | |
126 | arglist args; | |
127 | ||
1c14df9e | 128 | /* Bandwidth limit */ |
416fd2a8 | 129 | off_t limit_rate = 0; |
3c0ef626 | 130 | |
131 | /* Name of current file being transferred. */ | |
132 | char *curfile; | |
133 | ||
134 | /* This is set to non-zero to enable verbose mode. */ | |
135 | int verbose_mode = 0; | |
136 | ||
137 | /* This is set to zero if the progressmeter is not desired. */ | |
138 | int showprogress = 1; | |
139 | ||
140 | /* This is the program to execute for the secured connection. ("ssh" or -S) */ | |
ae43c103 | 141 | char *ssh_program; |
3c0ef626 | 142 | |
1c14df9e | 143 | /* This is used to store the pid of ssh_program */ |
70791e56 | 144 | pid_t do_cmd_pid = -1; |
145 | ||
146 | static void | |
147 | killchild(int signo) | |
148 | { | |
34fee935 | 149 | if (do_cmd_pid > 1) { |
150 | kill(do_cmd_pid, signo ? signo : SIGTERM); | |
151 | waitpid(do_cmd_pid, NULL, 0); | |
152 | } | |
70791e56 | 153 | |
34fee935 | 154 | if (signo) |
155 | _exit(1); | |
156 | exit(1); | |
70791e56 | 157 | } |
1c14df9e | 158 | |
e00da40d | 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 | ||
3c0ef626 | 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 | */ | |
206 | ||
207 | int | |
2e437378 | 208 | do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout) |
3c0ef626 | 209 | { |
210 | int pin[2], pout[2], reserved[2]; | |
211 | ||
212 | if (verbose_mode) | |
213 | fprintf(stderr, | |
214 | "Executing: program %s host %s, user %s, command %s\n", | |
215 | ssh_program, host, | |
216 | remuser ? remuser : "(unspecified)", cmd); | |
217 | ||
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 | */ | |
2e437378 | 222 | if (pipe(reserved) < 0) |
223 | fatal("pipe: %s", strerror(errno)); | |
3c0ef626 | 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 | ||
70791e56 | 235 | /* Fork a child to execute the command on the remote host using ssh. */ |
1c14df9e | 236 | do_cmd_pid = fork(); |
237 | if (do_cmd_pid == 0) { | |
3c0ef626 | 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 | ||
e00da40d | 246 | replacearg(&args, 0, "%s", ssh_program); |
3c0ef626 | 247 | if (remuser != NULL) |
248 | addargs(&args, "-l%s", remuser); | |
249 | addargs(&args, "%s", host); | |
250 | addargs(&args, "%s", cmd); | |
251 | ||
252 | execvp(ssh_program, args.list); | |
253 | perror(ssh_program); | |
254 | exit(1); | |
1c14df9e | 255 | } else if (do_cmd_pid == -1) { |
256 | fatal("fork: %s", strerror(errno)); | |
3c0ef626 | 257 | } |
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]; | |
70791e56 | 263 | signal(SIGTERM, killchild); |
264 | signal(SIGINT, killchild); | |
265 | signal(SIGHUP, killchild); | |
3c0ef626 | 266 | return 0; |
267 | } | |
268 | ||
269 | typedef struct { | |
34fee935 | 270 | size_t cnt; |
3c0ef626 | 271 | char *buf; |
272 | } BUF; | |
273 | ||
274 | BUF *allocbuf(BUF *, int, int); | |
275 | void lostconn(int); | |
3c0ef626 | 276 | int okname(char *); |
277 | void run_err(const char *,...); | |
278 | void verifydir(char *); | |
279 | ||
280 | struct passwd *pwd; | |
281 | uid_t userid; | |
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 | ||
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 *[]); | |
bd5d5d2a | 294 | size_t scpio(ssize_t (*)(int, void *, size_t), int, void *, size_t, off_t *); |
3c0ef626 | 295 | void usage(void); |
296 | ||
297 | int | |
70791e56 | 298 | main(int argc, char **argv) |
3c0ef626 | 299 | { |
2e437378 | 300 | int ch, fflag, tflag, status, n; |
1c14df9e | 301 | double speed; |
2e437378 | 302 | char *targ, *endp, **newargv; |
3c0ef626 | 303 | extern char *optarg; |
304 | extern int optind; | |
305 | ||
e00da40d | 306 | /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
307 | sanitise_stdfd(); | |
308 | ||
2e437378 | 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 | ||
70791e56 | 315 | __progname = ssh_get_progname(argv[0]); |
ae43c103 | 316 | init_pathnames(); |
675a64e2 | 317 | ssh_program = _PATH_SSH_PROGRAM; |
3c0ef626 | 318 | |
e00da40d | 319 | memset(&args, '\0', sizeof(args)); |
3c0ef626 | 320 | args.list = NULL; |
e00da40d | 321 | addargs(&args, "%s", ssh_program); |
3c0ef626 | 322 | addargs(&args, "-x"); |
323 | addargs(&args, "-oForwardAgent no"); | |
e00da40d | 324 | addargs(&args, "-oPermitLocalCommand no"); |
3c0ef626 | 325 | addargs(&args, "-oClearAllForwardings yes"); |
326 | ||
327 | fflag = tflag = 0; | |
2e437378 | 328 | while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q1246S:o:F:")) != -1) |
3c0ef626 | 329 | switch (ch) { |
330 | /* User-visible flags. */ | |
1c14df9e | 331 | case '1': |
332 | case '2': | |
3c0ef626 | 333 | case '4': |
334 | case '6': | |
335 | case 'C': | |
bd5d5d2a | 336 | addargs(&args, "-%c", ch); |
337 | break; | |
3c0ef626 | 338 | case 'o': |
339 | case 'c': | |
340 | case 'i': | |
341 | case 'F': | |
342 | addargs(&args, "-%c%s", ch, optarg); | |
343 | break; | |
344 | case 'P': | |
345 | addargs(&args, "-p%s", optarg); | |
346 | break; | |
347 | case 'B': | |
348 | addargs(&args, "-oBatchmode yes"); | |
349 | break; | |
1c14df9e | 350 | case 'l': |
351 | speed = strtod(optarg, &endp); | |
352 | if (speed <= 0 || *endp != '\0') | |
353 | usage(); | |
416fd2a8 | 354 | limit_rate = speed * 1024; |
1c14df9e | 355 | break; |
3c0ef626 | 356 | case 'p': |
357 | pflag = 1; | |
358 | break; | |
359 | case 'r': | |
360 | iamrecursive = 1; | |
361 | break; | |
362 | case 'S': | |
363 | ssh_program = xstrdup(optarg); | |
364 | break; | |
365 | case 'v': | |
366 | addargs(&args, "-v"); | |
367 | verbose_mode = 1; | |
368 | break; | |
369 | case 'q': | |
416fd2a8 | 370 | addargs(&args, "-q"); |
3c0ef626 | 371 | showprogress = 0; |
372 | break; | |
373 | ||
374 | /* Server options. */ | |
375 | case 'd': | |
376 | targetshouldbedirectory = 1; | |
377 | break; | |
378 | case 'f': /* "from" */ | |
379 | iamremote = 1; | |
380 | fflag = 1; | |
381 | break; | |
382 | case 't': /* "to" */ | |
383 | iamremote = 1; | |
384 | tflag = 1; | |
385 | #ifdef HAVE_CYGWIN | |
386 | setmode(0, O_BINARY); | |
387 | #endif | |
388 | break; | |
389 | default: | |
390 | usage(); | |
391 | } | |
392 | argc -= optind; | |
393 | argv += optind; | |
394 | ||
395 | if ((pwd = getpwuid(userid = getuid())) == NULL) | |
70791e56 | 396 | fatal("unknown user %u", (u_int) userid); |
3c0ef626 | 397 | |
2278ffa1 | 398 | if (!isatty(STDOUT_FILENO)) |
3c0ef626 | 399 | showprogress = 0; |
400 | ||
401 | remin = STDIN_FILENO; | |
402 | remout = STDOUT_FILENO; | |
403 | ||
404 | if (fflag) { | |
405 | /* Follow "protocol", send data. */ | |
406 | (void) response(); | |
407 | source(argc, argv); | |
408 | exit(errs != 0); | |
409 | } | |
410 | if (tflag) { | |
411 | /* Receive data. */ | |
412 | sink(argc, argv); | |
413 | exit(errs != 0); | |
414 | } | |
415 | if (argc < 2) | |
416 | usage(); | |
417 | if (argc > 2) | |
418 | targetshouldbedirectory = 1; | |
419 | ||
420 | remin = remout = -1; | |
1c14df9e | 421 | do_cmd_pid = -1; |
3c0ef626 | 422 | /* Command to be executed on remote system using "ssh". */ |
423 | (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s", | |
424 | verbose_mode ? " -v" : "", | |
425 | iamrecursive ? " -r" : "", pflag ? " -p" : "", | |
426 | targetshouldbedirectory ? " -d" : ""); | |
427 | ||
428 | (void) signal(SIGPIPE, lostconn); | |
429 | ||
430 | if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */ | |
431 | toremote(targ, argc, argv); | |
432 | else { | |
3c0ef626 | 433 | if (targetshouldbedirectory) |
434 | verifydir(argv[argc - 1]); | |
e00da40d | 435 | tolocal(argc, argv); /* Dest is local host. */ |
3c0ef626 | 436 | } |
1c14df9e | 437 | /* |
438 | * Finally check the exit status of the ssh process, if one was forked | |
16eb0a3b | 439 | * and no error has occurred yet |
1c14df9e | 440 | */ |
441 | if (do_cmd_pid != -1 && errs == 0) { | |
442 | if (remin != -1) | |
443 | (void) close(remin); | |
444 | if (remout != -1) | |
445 | (void) close(remout); | |
446 | if (waitpid(do_cmd_pid, &status, 0) == -1) | |
447 | errs = 1; | |
448 | else { | |
449 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
450 | errs = 1; | |
451 | } | |
452 | } | |
3c0ef626 | 453 | exit(errs != 0); |
454 | } | |
455 | ||
bd5d5d2a | 456 | /* |
457 | * atomicio-like wrapper that also applies bandwidth limits and updates | |
458 | * the progressmeter counter. | |
459 | */ | |
460 | size_t | |
461 | scpio(ssize_t (*f)(int, void *, size_t), int fd, void *_p, size_t l, off_t *c) | |
462 | { | |
463 | u_char *p = (u_char *)_p; | |
464 | size_t offset; | |
465 | ssize_t r; | |
466 | struct pollfd pfd; | |
467 | ||
468 | pfd.fd = fd; | |
469 | pfd.events = f == read ? POLLIN : POLLOUT; | |
470 | for (offset = 0; offset < l;) { | |
471 | r = f(fd, p + offset, l - offset); | |
472 | if (r == 0) { | |
473 | errno = EPIPE; | |
474 | return offset; | |
475 | } | |
476 | if (r < 0) { | |
477 | if (errno == EINTR) | |
478 | continue; | |
6f25cbdd | 479 | if (errno == EAGAIN || errno == EWOULDBLOCK) { |
bd5d5d2a | 480 | (void)poll(&pfd, 1, -1); /* Ignore errors */ |
481 | continue; | |
482 | } | |
483 | return offset; | |
484 | } | |
485 | offset += (size_t)r; | |
486 | *c += (off_t)r; | |
487 | if (limit_rate) | |
488 | bwlimit(r); | |
489 | } | |
490 | return offset; | |
491 | } | |
492 | ||
3c0ef626 | 493 | void |
70791e56 | 494 | toremote(char *targ, int argc, char **argv) |
3c0ef626 | 495 | { |
34fee935 | 496 | char *bp, *host, *src, *suser, *thost, *tuser, *arg; |
e00da40d | 497 | arglist alist; |
2e437378 | 498 | int i; |
e00da40d | 499 | |
500 | memset(&alist, '\0', sizeof(alist)); | |
501 | alist.list = NULL; | |
3c0ef626 | 502 | |
503 | *targ++ = 0; | |
504 | if (*targ == 0) | |
505 | targ = "."; | |
506 | ||
34fee935 | 507 | arg = xstrdup(argv[argc - 1]); |
508 | if ((thost = strrchr(arg, '@'))) { | |
3c0ef626 | 509 | /* user@host */ |
510 | *thost++ = 0; | |
34fee935 | 511 | tuser = arg; |
3c0ef626 | 512 | if (*tuser == '\0') |
513 | tuser = NULL; | |
3c0ef626 | 514 | } else { |
34fee935 | 515 | thost = arg; |
3c0ef626 | 516 | tuser = NULL; |
517 | } | |
518 | ||
e00da40d | 519 | if (tuser != NULL && !okname(tuser)) { |
520 | xfree(arg); | |
521 | return; | |
522 | } | |
523 | ||
3c0ef626 | 524 | for (i = 0; i < argc - 1; i++) { |
525 | src = colon(argv[i]); | |
526 | if (src) { /* remote to remote */ | |
e00da40d | 527 | freeargs(&alist); |
528 | addargs(&alist, "%s", ssh_program); | |
529 | if (verbose_mode) | |
530 | addargs(&alist, "-v"); | |
531 | addargs(&alist, "-x"); | |
532 | addargs(&alist, "-oClearAllForwardings yes"); | |
533 | addargs(&alist, "-n"); | |
534 | ||
3c0ef626 | 535 | *src++ = 0; |
536 | if (*src == 0) | |
537 | src = "."; | |
1c14df9e | 538 | host = strrchr(argv[i], '@'); |
e00da40d | 539 | |
3c0ef626 | 540 | if (host) { |
541 | *host++ = 0; | |
542 | host = cleanhostname(host); | |
543 | suser = argv[i]; | |
544 | if (*suser == '\0') | |
545 | suser = pwd->pw_name; | |
e00da40d | 546 | else if (!okname(suser)) |
3c0ef626 | 547 | continue; |
e00da40d | 548 | addargs(&alist, "-l"); |
549 | addargs(&alist, "%s", suser); | |
3c0ef626 | 550 | } else { |
551 | host = cleanhostname(argv[i]); | |
3c0ef626 | 552 | } |
e00da40d | 553 | addargs(&alist, "%s", host); |
554 | addargs(&alist, "%s", cmd); | |
555 | addargs(&alist, "%s", src); | |
556 | addargs(&alist, "%s%s%s:%s", | |
557 | tuser ? tuser : "", tuser ? "@" : "", | |
558 | thost, targ); | |
559 | if (do_local_cmd(&alist) != 0) | |
416fd2a8 | 560 | errs = 1; |
3c0ef626 | 561 | } else { /* local to remote */ |
562 | if (remin == -1) { | |
2e437378 | 563 | xasprintf(&bp, "%s -t %s", cmd, targ); |
3c0ef626 | 564 | host = cleanhostname(thost); |
565 | if (do_cmd(host, tuser, bp, &remin, | |
2e437378 | 566 | &remout) < 0) |
3c0ef626 | 567 | exit(1); |
568 | if (response() < 0) | |
569 | exit(1); | |
570 | (void) xfree(bp); | |
571 | } | |
572 | source(1, argv + i); | |
573 | } | |
574 | } | |
2e437378 | 575 | xfree(arg); |
3c0ef626 | 576 | } |
577 | ||
578 | void | |
70791e56 | 579 | tolocal(int argc, char **argv) |
3c0ef626 | 580 | { |
3c0ef626 | 581 | char *bp, *host, *src, *suser; |
e00da40d | 582 | arglist alist; |
2e437378 | 583 | int i; |
e00da40d | 584 | |
585 | memset(&alist, '\0', sizeof(alist)); | |
586 | alist.list = NULL; | |
3c0ef626 | 587 | |
588 | for (i = 0; i < argc - 1; i++) { | |
589 | if (!(src = colon(argv[i]))) { /* Local to local. */ | |
e00da40d | 590 | freeargs(&alist); |
591 | addargs(&alist, "%s", _PATH_CP); | |
592 | if (iamrecursive) | |
593 | addargs(&alist, "-r"); | |
594 | if (pflag) | |
595 | addargs(&alist, "-p"); | |
596 | addargs(&alist, "%s", argv[i]); | |
597 | addargs(&alist, "%s", argv[argc-1]); | |
598 | if (do_local_cmd(&alist)) | |
3c0ef626 | 599 | ++errs; |
3c0ef626 | 600 | continue; |
601 | } | |
602 | *src++ = 0; | |
603 | if (*src == 0) | |
604 | src = "."; | |
1c14df9e | 605 | if ((host = strrchr(argv[i], '@')) == NULL) { |
3c0ef626 | 606 | host = argv[i]; |
607 | suser = NULL; | |
608 | } else { | |
609 | *host++ = 0; | |
610 | suser = argv[i]; | |
611 | if (*suser == '\0') | |
612 | suser = pwd->pw_name; | |
3c0ef626 | 613 | } |
614 | host = cleanhostname(host); | |
2e437378 | 615 | xasprintf(&bp, "%s -f %s", cmd, src); |
616 | if (do_cmd(host, suser, bp, &remin, &remout) < 0) { | |
3c0ef626 | 617 | (void) xfree(bp); |
618 | ++errs; | |
619 | continue; | |
620 | } | |
621 | xfree(bp); | |
622 | sink(1, argv + argc - 1); | |
623 | (void) close(remin); | |
624 | remin = remout = -1; | |
625 | } | |
626 | } | |
627 | ||
628 | void | |
70791e56 | 629 | source(int argc, char **argv) |
3c0ef626 | 630 | { |
631 | struct stat stb; | |
632 | static BUF buffer; | |
633 | BUF *bp; | |
6f25cbdd | 634 | off_t i, statbytes; |
635 | size_t amt; | |
34fee935 | 636 | int fd = -1, haderr, indx; |
25d429a2 | 637 | char *last, *name, buf[16384], encname[MAXPATHLEN]; |
3c0ef626 | 638 | int len; |
639 | ||
640 | for (indx = 0; indx < argc; ++indx) { | |
641 | name = argv[indx]; | |
642 | statbytes = 0; | |
643 | len = strlen(name); | |
644 | while (len > 1 && name[len-1] == '/') | |
645 | name[--len] = '\0'; | |
25d429a2 | 646 | if ((fd = open(name, O_RDONLY|O_NONBLOCK, 0)) < 0) |
647 | goto syserr; | |
3c0ef626 | 648 | if (strchr(name, '\n') != NULL) { |
25d429a2 | 649 | strnvis(encname, name, sizeof(encname), VIS_NL); |
650 | name = encname; | |
3c0ef626 | 651 | } |
3c0ef626 | 652 | if (fstat(fd, &stb) < 0) { |
653 | syserr: run_err("%s: %s", name, strerror(errno)); | |
654 | goto next; | |
655 | } | |
6f25cbdd | 656 | if (stb.st_size < 0) { |
657 | run_err("%s: %s", name, "Negative file size"); | |
658 | goto next; | |
659 | } | |
25d429a2 | 660 | unset_nonblock(fd); |
3c0ef626 | 661 | switch (stb.st_mode & S_IFMT) { |
662 | case S_IFREG: | |
663 | break; | |
664 | case S_IFDIR: | |
665 | if (iamrecursive) { | |
666 | rsource(name, &stb); | |
667 | goto next; | |
668 | } | |
669 | /* FALLTHROUGH */ | |
670 | default: | |
671 | run_err("%s: not a regular file", name); | |
672 | goto next; | |
673 | } | |
674 | if ((last = strrchr(name, '/')) == NULL) | |
675 | last = name; | |
676 | else | |
677 | ++last; | |
678 | curfile = last; | |
679 | if (pflag) { | |
680 | /* | |
681 | * Make it compatible with possible future | |
682 | * versions expecting microseconds. | |
683 | */ | |
684 | (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n", | |
bd5d5d2a | 685 | (u_long) (stb.st_mtime < 0 ? 0 : stb.st_mtime), |
686 | (u_long) (stb.st_atime < 0 ? 0 : stb.st_atime)); | |
687 | if (verbose_mode) { | |
688 | fprintf(stderr, "File mtime %ld atime %ld\n", | |
689 | (long)stb.st_mtime, (long)stb.st_atime); | |
690 | fprintf(stderr, "Sending file timestamps: %s", | |
691 | buf); | |
692 | } | |
70791e56 | 693 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
3c0ef626 | 694 | if (response() < 0) |
695 | goto next; | |
696 | } | |
697 | #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) | |
3c0ef626 | 698 | snprintf(buf, sizeof buf, "C%04o %lld %s\n", |
699 | (u_int) (stb.st_mode & FILEMODEMASK), | |
e00da40d | 700 | (long long)stb.st_size, last); |
3c0ef626 | 701 | if (verbose_mode) { |
702 | fprintf(stderr, "Sending file modes: %s", buf); | |
3c0ef626 | 703 | } |
70791e56 | 704 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
3c0ef626 | 705 | if (response() < 0) |
706 | goto next; | |
bd5d5d2a | 707 | if ((bp = allocbuf(&buffer, fd, COPY_BUFLEN)) == NULL) { |
e00da40d | 708 | next: if (fd != -1) { |
709 | (void) close(fd); | |
710 | fd = -1; | |
711 | } | |
3c0ef626 | 712 | continue; |
713 | } | |
1c14df9e | 714 | if (showprogress) |
715 | start_progress_meter(curfile, stb.st_size, &statbytes); | |
bd5d5d2a | 716 | set_nonblock(remout); |
3c0ef626 | 717 | for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { |
718 | amt = bp->cnt; | |
6f25cbdd | 719 | if (i + (off_t)amt > stb.st_size) |
3c0ef626 | 720 | amt = stb.st_size - i; |
721 | if (!haderr) { | |
bd5d5d2a | 722 | if (atomicio(read, fd, bp->buf, amt) != amt) |
34fee935 | 723 | haderr = errno; |
3c0ef626 | 724 | } |
bd5d5d2a | 725 | /* Keep writing after error to retain sync */ |
726 | if (haderr) { | |
727 | (void)atomicio(vwrite, remout, bp->buf, amt); | |
728 | continue; | |
3c0ef626 | 729 | } |
bd5d5d2a | 730 | if (scpio(vwrite, remout, bp->buf, amt, |
731 | &statbytes) != amt) | |
732 | haderr = errno; | |
3c0ef626 | 733 | } |
bd5d5d2a | 734 | unset_nonblock(remout); |
3c0ef626 | 735 | if (showprogress) |
1c14df9e | 736 | stop_progress_meter(); |
3c0ef626 | 737 | |
e00da40d | 738 | if (fd != -1) { |
739 | if (close(fd) < 0 && !haderr) | |
740 | haderr = errno; | |
741 | fd = -1; | |
742 | } | |
3c0ef626 | 743 | if (!haderr) |
70791e56 | 744 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 745 | else |
746 | run_err("%s: %s", name, strerror(haderr)); | |
747 | (void) response(); | |
748 | } | |
749 | } | |
750 | ||
751 | void | |
70791e56 | 752 | rsource(char *name, struct stat *statp) |
3c0ef626 | 753 | { |
754 | DIR *dirp; | |
755 | struct dirent *dp; | |
756 | char *last, *vect[1], path[1100]; | |
757 | ||
758 | if (!(dirp = opendir(name))) { | |
759 | run_err("%s: %s", name, strerror(errno)); | |
760 | return; | |
761 | } | |
762 | last = strrchr(name, '/'); | |
763 | if (last == 0) | |
764 | last = name; | |
765 | else | |
766 | last++; | |
767 | if (pflag) { | |
768 | (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n", | |
769 | (u_long) statp->st_mtime, | |
770 | (u_long) statp->st_atime); | |
70791e56 | 771 | (void) atomicio(vwrite, remout, path, strlen(path)); |
3c0ef626 | 772 | if (response() < 0) { |
773 | closedir(dirp); | |
774 | return; | |
775 | } | |
776 | } | |
777 | (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n", | |
778 | (u_int) (statp->st_mode & FILEMODEMASK), 0, last); | |
779 | if (verbose_mode) | |
780 | fprintf(stderr, "Entering directory: %s", path); | |
70791e56 | 781 | (void) atomicio(vwrite, remout, path, strlen(path)); |
3c0ef626 | 782 | if (response() < 0) { |
783 | closedir(dirp); | |
784 | return; | |
785 | } | |
786 | while ((dp = readdir(dirp)) != NULL) { | |
787 | if (dp->d_ino == 0) | |
788 | continue; | |
789 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) | |
790 | continue; | |
791 | if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) { | |
792 | run_err("%s/%s: name too long", name, dp->d_name); | |
793 | continue; | |
794 | } | |
795 | (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name); | |
796 | vect[0] = path; | |
797 | source(1, vect); | |
798 | } | |
799 | (void) closedir(dirp); | |
70791e56 | 800 | (void) atomicio(vwrite, remout, "E\n", 2); |
3c0ef626 | 801 | (void) response(); |
802 | } | |
803 | ||
1c14df9e | 804 | void |
805 | bwlimit(int amount) | |
806 | { | |
807 | static struct timeval bwstart, bwend; | |
808 | static int lamt, thresh = 16384; | |
1b56ff3d | 809 | u_int64_t waitlen; |
1c14df9e | 810 | struct timespec ts, rm; |
811 | ||
812 | if (!timerisset(&bwstart)) { | |
813 | gettimeofday(&bwstart, NULL); | |
814 | return; | |
815 | } | |
816 | ||
817 | lamt += amount; | |
818 | if (lamt < thresh) | |
819 | return; | |
820 | ||
821 | gettimeofday(&bwend, NULL); | |
822 | timersub(&bwend, &bwstart, &bwend); | |
823 | if (!timerisset(&bwend)) | |
824 | return; | |
825 | ||
826 | lamt *= 8; | |
1b56ff3d | 827 | waitlen = (double)1000000L * lamt / limit_rate; |
1c14df9e | 828 | |
1b56ff3d | 829 | bwstart.tv_sec = waitlen / 1000000L; |
830 | bwstart.tv_usec = waitlen % 1000000L; | |
1c14df9e | 831 | |
832 | if (timercmp(&bwstart, &bwend, >)) { | |
833 | timersub(&bwstart, &bwend, &bwend); | |
834 | ||
835 | /* Adjust the wait time */ | |
836 | if (bwend.tv_sec) { | |
837 | thresh /= 2; | |
838 | if (thresh < 2048) | |
839 | thresh = 2048; | |
bd5d5d2a | 840 | } else if (bwend.tv_usec < 10000) { |
1c14df9e | 841 | thresh *= 2; |
bd5d5d2a | 842 | if (thresh > COPY_BUFLEN * 4) |
843 | thresh = COPY_BUFLEN * 4; | |
1c14df9e | 844 | } |
845 | ||
846 | TIMEVAL_TO_TIMESPEC(&bwend, &ts); | |
847 | while (nanosleep(&ts, &rm) == -1) { | |
848 | if (errno != EINTR) | |
849 | break; | |
850 | ts = rm; | |
851 | } | |
852 | } | |
853 | ||
854 | lamt = 0; | |
855 | gettimeofday(&bwstart, NULL); | |
856 | } | |
857 | ||
3c0ef626 | 858 | void |
70791e56 | 859 | sink(int argc, char **argv) |
3c0ef626 | 860 | { |
861 | static BUF buffer; | |
862 | struct stat stb; | |
863 | enum { | |
864 | YES, NO, DISPLAYED | |
865 | } wrerr; | |
866 | BUF *bp; | |
34fee935 | 867 | off_t i; |
868 | size_t j, count; | |
2e437378 | 869 | int amt, exists, first, ofd; |
870 | mode_t mode, omode, mask; | |
1c14df9e | 871 | off_t size, statbytes; |
3c0ef626 | 872 | int setimes, targisdir, wrerrno = 0; |
34fee935 | 873 | char ch, *cp, *np, *targ, *why, *vect[1], buf[16384]; |
3c0ef626 | 874 | struct timeval tv[2]; |
875 | ||
876 | #define atime tv[0] | |
877 | #define mtime tv[1] | |
34fee935 | 878 | #define SCREWUP(str) { why = str; goto screwup; } |
3c0ef626 | 879 | |
880 | setimes = targisdir = 0; | |
881 | mask = umask(0); | |
882 | if (!pflag) | |
883 | (void) umask(mask); | |
884 | if (argc != 1) { | |
885 | run_err("ambiguous target"); | |
886 | exit(1); | |
887 | } | |
888 | targ = *argv; | |
889 | if (targetshouldbedirectory) | |
890 | verifydir(targ); | |
891 | ||
70791e56 | 892 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 893 | if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) |
894 | targisdir = 1; | |
895 | for (first = 1;; first = 0) { | |
896 | cp = buf; | |
34fee935 | 897 | if (atomicio(read, remin, cp, 1) != 1) |
3c0ef626 | 898 | return; |
899 | if (*cp++ == '\n') | |
900 | SCREWUP("unexpected <newline>"); | |
901 | do { | |
902 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) | |
903 | SCREWUP("lost connection"); | |
904 | *cp++ = ch; | |
905 | } while (cp < &buf[sizeof(buf) - 1] && ch != '\n'); | |
906 | *cp = 0; | |
1b56ff3d | 907 | if (verbose_mode) |
908 | fprintf(stderr, "Sink: %s", buf); | |
3c0ef626 | 909 | |
910 | if (buf[0] == '\01' || buf[0] == '\02') { | |
911 | if (iamremote == 0) | |
70791e56 | 912 | (void) atomicio(vwrite, STDERR_FILENO, |
3c0ef626 | 913 | buf + 1, strlen(buf + 1)); |
914 | if (buf[0] == '\02') | |
915 | exit(1); | |
916 | ++errs; | |
917 | continue; | |
918 | } | |
919 | if (buf[0] == 'E') { | |
70791e56 | 920 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 921 | return; |
922 | } | |
923 | if (ch == '\n') | |
924 | *--cp = 0; | |
925 | ||
926 | cp = buf; | |
927 | if (*cp == 'T') { | |
928 | setimes++; | |
929 | cp++; | |
930 | mtime.tv_sec = strtol(cp, &cp, 10); | |
931 | if (!cp || *cp++ != ' ') | |
932 | SCREWUP("mtime.sec not delimited"); | |
933 | mtime.tv_usec = strtol(cp, &cp, 10); | |
934 | if (!cp || *cp++ != ' ') | |
935 | SCREWUP("mtime.usec not delimited"); | |
936 | atime.tv_sec = strtol(cp, &cp, 10); | |
937 | if (!cp || *cp++ != ' ') | |
938 | SCREWUP("atime.sec not delimited"); | |
939 | atime.tv_usec = strtol(cp, &cp, 10); | |
940 | if (!cp || *cp++ != '\0') | |
941 | SCREWUP("atime.usec not delimited"); | |
70791e56 | 942 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 943 | continue; |
944 | } | |
945 | if (*cp != 'C' && *cp != 'D') { | |
946 | /* | |
947 | * Check for the case "rcp remote:foo\* local:bar". | |
948 | * In this case, the line "No match." can be returned | |
949 | * by the shell before the rcp command on the remote is | |
950 | * executed so the ^Aerror_message convention isn't | |
951 | * followed. | |
952 | */ | |
953 | if (first) { | |
954 | run_err("%s", cp); | |
955 | exit(1); | |
956 | } | |
957 | SCREWUP("expected control record"); | |
958 | } | |
959 | mode = 0; | |
960 | for (++cp; cp < buf + 5; cp++) { | |
961 | if (*cp < '0' || *cp > '7') | |
962 | SCREWUP("bad mode"); | |
963 | mode = (mode << 3) | (*cp - '0'); | |
964 | } | |
965 | if (*cp++ != ' ') | |
966 | SCREWUP("mode not delimited"); | |
967 | ||
968 | for (size = 0; isdigit(*cp);) | |
969 | size = size * 10 + (*cp++ - '0'); | |
970 | if (*cp++ != ' ') | |
971 | SCREWUP("size not delimited"); | |
1b56ff3d | 972 | if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) { |
973 | run_err("error: unexpected filename: %s", cp); | |
974 | exit(1); | |
975 | } | |
3c0ef626 | 976 | if (targisdir) { |
977 | static char *namebuf; | |
34fee935 | 978 | static size_t cursize; |
3c0ef626 | 979 | size_t need; |
980 | ||
981 | need = strlen(targ) + strlen(cp) + 250; | |
982 | if (need > cursize) { | |
983 | if (namebuf) | |
984 | xfree(namebuf); | |
985 | namebuf = xmalloc(need); | |
986 | cursize = need; | |
987 | } | |
988 | (void) snprintf(namebuf, need, "%s%s%s", targ, | |
2980ea68 | 989 | strcmp(targ, "/") ? "/" : "", cp); |
3c0ef626 | 990 | np = namebuf; |
991 | } else | |
992 | np = targ; | |
993 | curfile = cp; | |
994 | exists = stat(np, &stb) == 0; | |
995 | if (buf[0] == 'D') { | |
996 | int mod_flag = pflag; | |
1b56ff3d | 997 | if (!iamrecursive) |
998 | SCREWUP("received directory without -r"); | |
3c0ef626 | 999 | if (exists) { |
1000 | if (!S_ISDIR(stb.st_mode)) { | |
1001 | errno = ENOTDIR; | |
1002 | goto bad; | |
1003 | } | |
1004 | if (pflag) | |
1005 | (void) chmod(np, mode); | |
1006 | } else { | |
1007 | /* Handle copying from a read-only | |
1008 | directory */ | |
1009 | mod_flag = 1; | |
1010 | if (mkdir(np, mode | S_IRWXU) < 0) | |
1011 | goto bad; | |
1012 | } | |
1013 | vect[0] = xstrdup(np); | |
1014 | sink(1, vect); | |
1015 | if (setimes) { | |
1016 | setimes = 0; | |
1017 | if (utimes(vect[0], tv) < 0) | |
1018 | run_err("%s: set times: %s", | |
1019 | vect[0], strerror(errno)); | |
1020 | } | |
1021 | if (mod_flag) | |
1022 | (void) chmod(vect[0], mode); | |
1023 | if (vect[0]) | |
1024 | xfree(vect[0]); | |
1025 | continue; | |
1026 | } | |
1027 | omode = mode; | |
1028 | mode |= S_IWRITE; | |
1029 | if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { | |
1030 | bad: run_err("%s: %s", np, strerror(errno)); | |
1031 | continue; | |
1032 | } | |
70791e56 | 1033 | (void) atomicio(vwrite, remout, "", 1); |
bd5d5d2a | 1034 | if ((bp = allocbuf(&buffer, ofd, COPY_BUFLEN)) == NULL) { |
3c0ef626 | 1035 | (void) close(ofd); |
1036 | continue; | |
1037 | } | |
1038 | cp = bp->buf; | |
1039 | wrerr = NO; | |
1040 | ||
3c0ef626 | 1041 | statbytes = 0; |
1c14df9e | 1042 | if (showprogress) |
1043 | start_progress_meter(curfile, size, &statbytes); | |
bd5d5d2a | 1044 | set_nonblock(remin); |
1045 | for (count = i = 0; i < size; i += bp->cnt) { | |
1046 | amt = bp->cnt; | |
3c0ef626 | 1047 | if (i + amt > size) |
1048 | amt = size - i; | |
1049 | count += amt; | |
1050 | do { | |
bd5d5d2a | 1051 | j = scpio(read, remin, cp, amt, &statbytes); |
34fee935 | 1052 | if (j == 0) { |
bd5d5d2a | 1053 | run_err("%s", j != EPIPE ? |
1054 | strerror(errno) : | |
3c0ef626 | 1055 | "dropped connection"); |
1056 | exit(1); | |
1057 | } | |
1058 | amt -= j; | |
1059 | cp += j; | |
3c0ef626 | 1060 | } while (amt > 0); |
416fd2a8 | 1061 | |
3c0ef626 | 1062 | if (count == bp->cnt) { |
1063 | /* Keep reading so we stay sync'd up. */ | |
1064 | if (wrerr == NO) { | |
34fee935 | 1065 | if (atomicio(vwrite, ofd, bp->buf, |
1066 | count) != count) { | |
3c0ef626 | 1067 | wrerr = YES; |
34fee935 | 1068 | wrerrno = errno; |
3c0ef626 | 1069 | } |
1070 | } | |
1071 | count = 0; | |
1072 | cp = bp->buf; | |
1073 | } | |
1074 | } | |
bd5d5d2a | 1075 | unset_nonblock(remin); |
3c0ef626 | 1076 | if (showprogress) |
1c14df9e | 1077 | stop_progress_meter(); |
3c0ef626 | 1078 | if (count != 0 && wrerr == NO && |
34fee935 | 1079 | atomicio(vwrite, ofd, bp->buf, count) != count) { |
3c0ef626 | 1080 | wrerr = YES; |
34fee935 | 1081 | wrerrno = errno; |
3c0ef626 | 1082 | } |
25d429a2 | 1083 | if (wrerr == NO && (!exists || S_ISREG(stb.st_mode)) && |
1084 | ftruncate(ofd, size) != 0) { | |
3c0ef626 | 1085 | run_err("%s: truncate: %s", np, strerror(errno)); |
1086 | wrerr = DISPLAYED; | |
1087 | } | |
1088 | if (pflag) { | |
1089 | if (exists || omode != mode) | |
1090 | #ifdef HAVE_FCHMOD | |
1b56ff3d | 1091 | if (fchmod(ofd, omode)) { |
3c0ef626 | 1092 | #else /* HAVE_FCHMOD */ |
1b56ff3d | 1093 | if (chmod(np, omode)) { |
3c0ef626 | 1094 | #endif /* HAVE_FCHMOD */ |
1095 | run_err("%s: set mode: %s", | |
1096 | np, strerror(errno)); | |
1b56ff3d | 1097 | wrerr = DISPLAYED; |
1098 | } | |
3c0ef626 | 1099 | } else { |
1100 | if (!exists && omode != mode) | |
1101 | #ifdef HAVE_FCHMOD | |
1b56ff3d | 1102 | if (fchmod(ofd, omode & ~mask)) { |
3c0ef626 | 1103 | #else /* HAVE_FCHMOD */ |
1b56ff3d | 1104 | if (chmod(np, omode & ~mask)) { |
3c0ef626 | 1105 | #endif /* HAVE_FCHMOD */ |
1106 | run_err("%s: set mode: %s", | |
1107 | np, strerror(errno)); | |
1b56ff3d | 1108 | wrerr = DISPLAYED; |
1109 | } | |
3c0ef626 | 1110 | } |
1111 | if (close(ofd) == -1) { | |
1112 | wrerr = YES; | |
1113 | wrerrno = errno; | |
1114 | } | |
1115 | (void) response(); | |
1116 | if (setimes && wrerr == NO) { | |
1117 | setimes = 0; | |
1118 | if (utimes(np, tv) < 0) { | |
1119 | run_err("%s: set times: %s", | |
1120 | np, strerror(errno)); | |
1121 | wrerr = DISPLAYED; | |
1122 | } | |
1123 | } | |
1124 | switch (wrerr) { | |
1125 | case YES: | |
1126 | run_err("%s: %s", np, strerror(wrerrno)); | |
1127 | break; | |
1128 | case NO: | |
70791e56 | 1129 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 1130 | break; |
1131 | case DISPLAYED: | |
1132 | break; | |
1133 | } | |
1134 | } | |
1135 | screwup: | |
1136 | run_err("protocol error: %s", why); | |
1137 | exit(1); | |
1138 | } | |
1139 | ||
1140 | int | |
e9a17296 | 1141 | response(void) |
3c0ef626 | 1142 | { |
1143 | char ch, *cp, resp, rbuf[2048]; | |
1144 | ||
1145 | if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp)) | |
1146 | lostconn(0); | |
1147 | ||
1148 | cp = rbuf; | |
1149 | switch (resp) { | |
1150 | case 0: /* ok */ | |
1151 | return (0); | |
1152 | default: | |
1153 | *cp++ = resp; | |
1154 | /* FALLTHROUGH */ | |
1155 | case 1: /* error, followed by error msg */ | |
1156 | case 2: /* fatal error, "" */ | |
1157 | do { | |
1158 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) | |
1159 | lostconn(0); | |
1160 | *cp++ = ch; | |
1161 | } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n'); | |
1162 | ||
1163 | if (!iamremote) | |
70791e56 | 1164 | (void) atomicio(vwrite, STDERR_FILENO, rbuf, cp - rbuf); |
3c0ef626 | 1165 | ++errs; |
1166 | if (resp == 1) | |
1167 | return (-1); | |
1168 | exit(1); | |
1169 | } | |
1170 | /* NOTREACHED */ | |
1171 | } | |
1172 | ||
1173 | void | |
e9a17296 | 1174 | usage(void) |
3c0ef626 | 1175 | { |
1176 | (void) fprintf(stderr, | |
416fd2a8 | 1177 | "usage: scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]\n" |
2e437378 | 1178 | " [-l limit] [-o ssh_option] [-P port] [-S program]\n" |
25d429a2 | 1179 | " [[user@]host1:]file1 ... [[user@]host2:]file2\n"); |
3c0ef626 | 1180 | exit(1); |
1181 | } | |
1182 | ||
1183 | void | |
1184 | run_err(const char *fmt,...) | |
1185 | { | |
1186 | static FILE *fp; | |
1187 | va_list ap; | |
1188 | ||
1189 | ++errs; | |
2e437378 | 1190 | if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) { |
1191 | (void) fprintf(fp, "%c", 0x01); | |
1192 | (void) fprintf(fp, "scp: "); | |
1193 | va_start(ap, fmt); | |
1194 | (void) vfprintf(fp, fmt, ap); | |
1195 | va_end(ap); | |
1196 | (void) fprintf(fp, "\n"); | |
1197 | (void) fflush(fp); | |
1198 | } | |
3c0ef626 | 1199 | |
1200 | if (!iamremote) { | |
1201 | va_start(ap, fmt); | |
1202 | vfprintf(stderr, fmt, ap); | |
1203 | va_end(ap); | |
1204 | fprintf(stderr, "\n"); | |
1205 | } | |
1206 | } | |
1207 | ||
1208 | void | |
70791e56 | 1209 | verifydir(char *cp) |
3c0ef626 | 1210 | { |
1211 | struct stat stb; | |
1212 | ||
1213 | if (!stat(cp, &stb)) { | |
1214 | if (S_ISDIR(stb.st_mode)) | |
1215 | return; | |
1216 | errno = ENOTDIR; | |
1217 | } | |
1218 | run_err("%s: %s", cp, strerror(errno)); | |
34fee935 | 1219 | killchild(0); |
3c0ef626 | 1220 | } |
1221 | ||
1222 | int | |
70791e56 | 1223 | okname(char *cp0) |
3c0ef626 | 1224 | { |
1225 | int c; | |
1226 | char *cp; | |
1227 | ||
1228 | cp = cp0; | |
1229 | do { | |
1230 | c = (int)*cp; | |
1231 | if (c & 0200) | |
1232 | goto bad; | |
1c14df9e | 1233 | if (!isalpha(c) && !isdigit(c)) { |
1234 | switch (c) { | |
1235 | case '\'': | |
1236 | case '"': | |
1237 | case '`': | |
1238 | case ' ': | |
1239 | case '#': | |
1240 | goto bad; | |
1241 | default: | |
1242 | break; | |
1243 | } | |
1244 | } | |
3c0ef626 | 1245 | } while (*++cp); |
1246 | return (1); | |
1247 | ||
1248 | bad: fprintf(stderr, "%s: invalid user name\n", cp0); | |
1249 | return (0); | |
1250 | } | |
1251 | ||
1252 | BUF * | |
70791e56 | 1253 | allocbuf(BUF *bp, int fd, int blksize) |
3c0ef626 | 1254 | { |
1255 | size_t size; | |
1256 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE | |
1257 | struct stat stb; | |
1258 | ||
1259 | if (fstat(fd, &stb) < 0) { | |
1260 | run_err("fstat: %s", strerror(errno)); | |
1261 | return (0); | |
1262 | } | |
1c14df9e | 1263 | size = roundup(stb.st_blksize, blksize); |
1264 | if (size == 0) | |
3c0ef626 | 1265 | size = blksize; |
3c0ef626 | 1266 | #else /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
1267 | size = blksize; | |
1268 | #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */ | |
1269 | if (bp->cnt >= size) | |
1270 | return (bp); | |
1271 | if (bp->buf == NULL) | |
1272 | bp->buf = xmalloc(size); | |
1273 | else | |
2e437378 | 1274 | bp->buf = xrealloc(bp->buf, 1, size); |
3c0ef626 | 1275 | memset(bp->buf, 0, size); |
1276 | bp->cnt = size; | |
1277 | return (bp); | |
1278 | } | |
1279 | ||
1280 | void | |
70791e56 | 1281 | lostconn(int signo) |
3c0ef626 | 1282 | { |
1283 | if (!iamremote) | |
1284 | write(STDERR_FILENO, "lost connection\n", 16); | |
1285 | if (signo) | |
1286 | _exit(1); | |
1287 | else | |
1288 | exit(1); | |
1289 | } |