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7df0afaf | 1 | /* $OpenBSD: scp.c,v 1.156 2007/01/22 13:06:21 djm 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 | |
e264ac72 | 81 | #ifdef HAVE_SYS_TIME_H |
82 | # include <sys/time.h> | |
83 | #endif | |
aa2eae64 | 84 | #include <sys/wait.h> |
31652869 | 85 | #include <sys/uio.h> |
68e39d38 | 86 | |
b6438382 | 87 | #include <ctype.h> |
68e39d38 | 88 | #include <dirent.h> |
028094f4 | 89 | #include <errno.h> |
d3221cca | 90 | #include <fcntl.h> |
b1842393 | 91 | #include <pwd.h> |
ada68823 | 92 | #include <signal.h> |
4c72fcfd | 93 | #include <stdarg.h> |
cf851879 | 94 | #include <stdio.h> |
ffa517a8 | 95 | #include <stdlib.h> |
00146caa | 96 | #include <string.h> |
b0f6943a | 97 | #include <time.h> |
5188ba17 | 98 | #include <unistd.h> |
8efc0c15 | 99 | |
8efc0c15 | 100 | #include "xmalloc.h" |
42f11eb2 | 101 | #include "atomicio.h" |
102 | #include "pathnames.h" | |
103 | #include "log.h" | |
36a358ca | 104 | #include "misc.h" |
b65c3807 | 105 | #include "progressmeter.h" |
8efc0c15 | 106 | |
260d427b | 107 | extern char *__progname; |
260d427b | 108 | |
ac93e676 | 109 | int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout); |
110 | ||
6ea3c52a | 111 | void bwlimit(int); |
112 | ||
8a624ebf | 113 | /* Struct for addargs */ |
114 | arglist args; | |
94ec8c6b | 115 | |
6ea3c52a | 116 | /* Bandwidth limit */ |
10adbb52 | 117 | off_t limit_rate = 0; |
6ea3c52a | 118 | |
8efc0c15 | 119 | /* Name of current file being transferred. */ |
120 | char *curfile; | |
121 | ||
122 | /* This is set to non-zero to enable verbose mode. */ | |
5260325f | 123 | int verbose_mode = 0; |
8efc0c15 | 124 | |
8efc0c15 | 125 | /* This is set to zero if the progressmeter is not desired. */ |
126 | int showprogress = 1; | |
127 | ||
2e73a022 | 128 | /* This is the program to execute for the secured connection. ("ssh" or -S) */ |
42f11eb2 | 129 | char *ssh_program = _PATH_SSH_PROGRAM; |
2e73a022 | 130 | |
252d1a24 | 131 | /* This is used to store the pid of ssh_program */ |
0f764b2f | 132 | pid_t do_cmd_pid = -1; |
133 | ||
134 | static void | |
135 | killchild(int signo) | |
136 | { | |
3c03ad3f | 137 | if (do_cmd_pid > 1) { |
8f4ab41b | 138 | kill(do_cmd_pid, signo ? signo : SIGTERM); |
3c03ad3f | 139 | waitpid(do_cmd_pid, NULL, 0); |
140 | } | |
0f764b2f | 141 | |
8f4ab41b | 142 | if (signo) |
143 | _exit(1); | |
144 | exit(1); | |
0f764b2f | 145 | } |
252d1a24 | 146 | |
4116f5c0 | 147 | static int |
148 | do_local_cmd(arglist *a) | |
149 | { | |
150 | u_int i; | |
151 | int status; | |
152 | pid_t pid; | |
153 | ||
154 | if (a->num == 0) | |
155 | fatal("do_local_cmd: no arguments"); | |
156 | ||
157 | if (verbose_mode) { | |
158 | fprintf(stderr, "Executing:"); | |
159 | for (i = 0; i < a->num; i++) | |
160 | fprintf(stderr, " %s", a->list[i]); | |
161 | fprintf(stderr, "\n"); | |
162 | } | |
163 | if ((pid = fork()) == -1) | |
164 | fatal("do_local_cmd: fork: %s", strerror(errno)); | |
165 | ||
166 | if (pid == 0) { | |
167 | execvp(a->list[0], a->list); | |
168 | perror(a->list[0]); | |
169 | exit(1); | |
170 | } | |
171 | ||
172 | do_cmd_pid = pid; | |
173 | signal(SIGTERM, killchild); | |
174 | signal(SIGINT, killchild); | |
175 | signal(SIGHUP, killchild); | |
176 | ||
177 | while (waitpid(pid, &status, 0) == -1) | |
178 | if (errno != EINTR) | |
179 | fatal("do_local_cmd: waitpid: %s", strerror(errno)); | |
180 | ||
181 | do_cmd_pid = -1; | |
182 | ||
183 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
184 | return (-1); | |
185 | ||
186 | return (0); | |
187 | } | |
188 | ||
aa3378df | 189 | /* |
190 | * This function executes the given command as the specified user on the | |
191 | * given host. This returns < 0 if execution fails, and >= 0 otherwise. This | |
192 | * assigns the input and output file descriptors on success. | |
193 | */ | |
8efc0c15 | 194 | |
6ae2364d | 195 | int |
ac93e676 | 196 | do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout) |
8efc0c15 | 197 | { |
5260325f | 198 | int pin[2], pout[2], reserved[2]; |
199 | ||
200 | if (verbose_mode) | |
0b2988ca | 201 | fprintf(stderr, |
202 | "Executing: program %s host %s, user %s, command %s\n", | |
203 | ssh_program, host, | |
204 | remuser ? remuser : "(unspecified)", cmd); | |
5260325f | 205 | |
aa3378df | 206 | /* |
207 | * Reserve two descriptors so that the real pipes won't get | |
208 | * descriptors 0 and 1 because that will screw up dup2 below. | |
209 | */ | |
2b8dc5e3 | 210 | if (pipe(reserved) < 0) |
211 | fatal("pipe: %s", strerror(errno)); | |
5260325f | 212 | |
213 | /* Create a socket pair for communicating with ssh. */ | |
214 | if (pipe(pin) < 0) | |
215 | fatal("pipe: %s", strerror(errno)); | |
216 | if (pipe(pout) < 0) | |
217 | fatal("pipe: %s", strerror(errno)); | |
218 | ||
219 | /* Free the reserved descriptors. */ | |
220 | close(reserved[0]); | |
221 | close(reserved[1]); | |
222 | ||
1fb23629 | 223 | /* Fork a child to execute the command on the remote host using ssh. */ |
252d1a24 | 224 | do_cmd_pid = fork(); |
225 | if (do_cmd_pid == 0) { | |
5260325f | 226 | /* Child. */ |
227 | close(pin[1]); | |
228 | close(pout[0]); | |
229 | dup2(pin[0], 0); | |
230 | dup2(pout[1], 1); | |
231 | close(pin[0]); | |
232 | close(pout[1]); | |
233 | ||
4116f5c0 | 234 | replacearg(&args, 0, "%s", ssh_program); |
94ec8c6b | 235 | if (remuser != NULL) |
8a624ebf | 236 | addargs(&args, "-l%s", remuser); |
237 | addargs(&args, "%s", host); | |
238 | addargs(&args, "%s", cmd); | |
5260325f | 239 | |
94ec8c6b | 240 | execvp(ssh_program, args.list); |
2e73a022 | 241 | perror(ssh_program); |
5260325f | 242 | exit(1); |
252d1a24 | 243 | } else if (do_cmd_pid == -1) { |
244 | fatal("fork: %s", strerror(errno)); | |
8efc0c15 | 245 | } |
5260325f | 246 | /* Parent. Close the other side, and return the local side. */ |
247 | close(pin[0]); | |
248 | *fdout = pin[1]; | |
249 | close(pout[1]); | |
250 | *fdin = pout[0]; | |
0f764b2f | 251 | signal(SIGTERM, killchild); |
252 | signal(SIGINT, killchild); | |
253 | signal(SIGHUP, killchild); | |
5260325f | 254 | return 0; |
8efc0c15 | 255 | } |
256 | ||
8efc0c15 | 257 | typedef struct { |
2ceb8101 | 258 | size_t cnt; |
8efc0c15 | 259 | char *buf; |
260 | } BUF; | |
261 | ||
5260325f | 262 | BUF *allocbuf(BUF *, int, int); |
5260325f | 263 | void lostconn(int); |
5260325f | 264 | int okname(char *); |
265 | void run_err(const char *,...); | |
266 | void verifydir(char *); | |
8efc0c15 | 267 | |
8efc0c15 | 268 | struct passwd *pwd; |
5260325f | 269 | uid_t userid; |
8efc0c15 | 270 | int errs, remin, remout; |
271 | int pflag, iamremote, iamrecursive, targetshouldbedirectory; | |
272 | ||
273 | #define CMDNEEDS 64 | |
274 | char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */ | |
275 | ||
5260325f | 276 | int response(void); |
277 | void rsource(char *, struct stat *); | |
278 | void sink(int, char *[]); | |
279 | void source(int, char *[]); | |
280 | void tolocal(int, char *[]); | |
281 | void toremote(char *, int, char *[]); | |
282 | void usage(void); | |
8efc0c15 | 283 | |
284 | int | |
cf3248b8 | 285 | main(int argc, char **argv) |
8efc0c15 | 286 | { |
1879b184 | 287 | int ch, fflag, tflag, status, n; |
6ea3c52a | 288 | double speed; |
1879b184 | 289 | char *targ, *endp, **newargv; |
8efc0c15 | 290 | extern char *optarg; |
291 | extern int optind; | |
292 | ||
fd6168c1 | 293 | /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
294 | sanitise_stdfd(); | |
295 | ||
1879b184 | 296 | /* Copy argv, because we modify it */ |
297 | newargv = xcalloc(MAX(argc + 1, 1), sizeof(*newargv)); | |
298 | for (n = 0; n < argc; n++) | |
299 | newargv[n] = xstrdup(argv[n]); | |
300 | argv = newargv; | |
301 | ||
fda04d7d | 302 | __progname = ssh_get_progname(argv[0]); |
260d427b | 303 | |
4116f5c0 | 304 | memset(&args, '\0', sizeof(args)); |
94ec8c6b | 305 | args.list = NULL; |
4116f5c0 | 306 | addargs(&args, "%s", ssh_program); |
8a624ebf | 307 | addargs(&args, "-x"); |
3a222388 | 308 | addargs(&args, "-oForwardAgent no"); |
d20f3c9e | 309 | addargs(&args, "-oPermitLocalCommand no"); |
e1c5bfaf | 310 | addargs(&args, "-oClearAllForwardings yes"); |
94ec8c6b | 311 | |
8efc0c15 | 312 | fflag = tflag = 0; |
e6b15f23 | 313 | while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q1246S:o:F:")) != -1) |
5260325f | 314 | switch (ch) { |
315 | /* User-visible flags. */ | |
e6b15f23 | 316 | case '1': |
317 | case '2': | |
48e671d5 | 318 | case '4': |
48e671d5 | 319 | case '6': |
94ec8c6b | 320 | case 'C': |
8a624ebf | 321 | addargs(&args, "-%c", ch); |
48e671d5 | 322 | break; |
94ec8c6b | 323 | case 'o': |
324 | case 'c': | |
325 | case 'i': | |
f1278af7 | 326 | case 'F': |
8a624ebf | 327 | addargs(&args, "-%c%s", ch, optarg); |
8efc0c15 | 328 | break; |
329 | case 'P': | |
8a624ebf | 330 | addargs(&args, "-p%s", optarg); |
94ec8c6b | 331 | break; |
332 | case 'B': | |
8a624ebf | 333 | addargs(&args, "-oBatchmode yes"); |
94ec8c6b | 334 | break; |
6ea3c52a | 335 | case 'l': |
336 | speed = strtod(optarg, &endp); | |
337 | if (speed <= 0 || *endp != '\0') | |
338 | usage(); | |
10adbb52 | 339 | limit_rate = speed * 1024; |
6ea3c52a | 340 | break; |
94ec8c6b | 341 | case 'p': |
342 | pflag = 1; | |
5260325f | 343 | break; |
8efc0c15 | 344 | case 'r': |
345 | iamrecursive = 1; | |
346 | break; | |
2e73a022 | 347 | case 'S': |
94ec8c6b | 348 | ssh_program = xstrdup(optarg); |
349 | break; | |
350 | case 'v': | |
4fc334a2 | 351 | addargs(&args, "-v"); |
94ec8c6b | 352 | verbose_mode = 1; |
353 | break; | |
354 | case 'q': | |
15c8e3fd | 355 | addargs(&args, "-q"); |
94ec8c6b | 356 | showprogress = 0; |
2e73a022 | 357 | break; |
358 | ||
5260325f | 359 | /* Server options. */ |
8efc0c15 | 360 | case 'd': |
361 | targetshouldbedirectory = 1; | |
362 | break; | |
5260325f | 363 | case 'f': /* "from" */ |
8efc0c15 | 364 | iamremote = 1; |
365 | fflag = 1; | |
366 | break; | |
5260325f | 367 | case 't': /* "to" */ |
8efc0c15 | 368 | iamremote = 1; |
369 | tflag = 1; | |
fe56c12b | 370 | #ifdef HAVE_CYGWIN |
371 | setmode(0, O_BINARY); | |
372 | #endif | |
8efc0c15 | 373 | break; |
8efc0c15 | 374 | default: |
375 | usage(); | |
376 | } | |
377 | argc -= optind; | |
378 | argv += optind; | |
379 | ||
380 | if ((pwd = getpwuid(userid = getuid())) == NULL) | |
261bd618 | 381 | fatal("unknown user %u", (u_int) userid); |
8efc0c15 | 382 | |
7df0afaf | 383 | if (!isatty(STDOUT_FILENO)) |
8efc0c15 | 384 | showprogress = 0; |
385 | ||
386 | remin = STDIN_FILENO; | |
387 | remout = STDOUT_FILENO; | |
388 | ||
2b87da3b | 389 | if (fflag) { |
5260325f | 390 | /* Follow "protocol", send data. */ |
391 | (void) response(); | |
8efc0c15 | 392 | source(argc, argv); |
393 | exit(errs != 0); | |
394 | } | |
5260325f | 395 | if (tflag) { |
396 | /* Receive data. */ | |
8efc0c15 | 397 | sink(argc, argv); |
398 | exit(errs != 0); | |
399 | } | |
8efc0c15 | 400 | if (argc < 2) |
401 | usage(); | |
402 | if (argc > 2) | |
403 | targetshouldbedirectory = 1; | |
404 | ||
405 | remin = remout = -1; | |
252d1a24 | 406 | do_cmd_pid = -1; |
8efc0c15 | 407 | /* Command to be executed on remote system using "ssh". */ |
0ed28836 | 408 | (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s", |
409 | verbose_mode ? " -v" : "", | |
2e73a022 | 410 | iamrecursive ? " -r" : "", pflag ? " -p" : "", |
411 | targetshouldbedirectory ? " -d" : ""); | |
8efc0c15 | 412 | |
5260325f | 413 | (void) signal(SIGPIPE, lostconn); |
8efc0c15 | 414 | |
415 | if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */ | |
416 | toremote(targ, argc, argv); | |
417 | else { | |
8efc0c15 | 418 | if (targetshouldbedirectory) |
419 | verifydir(argv[argc - 1]); | |
16e8ab10 | 420 | tolocal(argc, argv); /* Dest is local host. */ |
8efc0c15 | 421 | } |
252d1a24 | 422 | /* |
423 | * Finally check the exit status of the ssh process, if one was forked | |
424 | * and no error has occured yet | |
425 | */ | |
426 | if (do_cmd_pid != -1 && errs == 0) { | |
427 | if (remin != -1) | |
428 | (void) close(remin); | |
429 | if (remout != -1) | |
430 | (void) close(remout); | |
431 | if (waitpid(do_cmd_pid, &status, 0) == -1) | |
432 | errs = 1; | |
433 | else { | |
434 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
435 | errs = 1; | |
436 | } | |
437 | } | |
8efc0c15 | 438 | exit(errs != 0); |
439 | } | |
440 | ||
441 | void | |
cf3248b8 | 442 | toremote(char *targ, int argc, char **argv) |
8efc0c15 | 443 | { |
99dfaccc | 444 | char *bp, *host, *src, *suser, *thost, *tuser, *arg; |
4116f5c0 | 445 | arglist alist; |
ac93e676 | 446 | int i; |
4116f5c0 | 447 | |
448 | memset(&alist, '\0', sizeof(alist)); | |
449 | alist.list = NULL; | |
8efc0c15 | 450 | |
451 | *targ++ = 0; | |
452 | if (*targ == 0) | |
453 | targ = "."; | |
454 | ||
ae0d2f42 | 455 | arg = xstrdup(argv[argc - 1]); |
99dfaccc | 456 | if ((thost = strrchr(arg, '@'))) { |
8efc0c15 | 457 | /* user@host */ |
458 | *thost++ = 0; | |
99dfaccc | 459 | tuser = arg; |
8efc0c15 | 460 | if (*tuser == '\0') |
461 | tuser = NULL; | |
8efc0c15 | 462 | } else { |
99dfaccc | 463 | thost = arg; |
8efc0c15 | 464 | tuser = NULL; |
465 | } | |
466 | ||
4116f5c0 | 467 | if (tuser != NULL && !okname(tuser)) { |
468 | xfree(arg); | |
469 | return; | |
470 | } | |
471 | ||
8efc0c15 | 472 | for (i = 0; i < argc - 1; i++) { |
473 | src = colon(argv[i]); | |
5260325f | 474 | if (src) { /* remote to remote */ |
4116f5c0 | 475 | freeargs(&alist); |
476 | addargs(&alist, "%s", ssh_program); | |
477 | if (verbose_mode) | |
478 | addargs(&alist, "-v"); | |
479 | addargs(&alist, "-x"); | |
480 | addargs(&alist, "-oClearAllForwardings yes"); | |
481 | addargs(&alist, "-n"); | |
482 | ||
8efc0c15 | 483 | *src++ = 0; |
484 | if (*src == 0) | |
485 | src = "."; | |
15748b4d | 486 | host = strrchr(argv[i], '@'); |
4116f5c0 | 487 | |
8efc0c15 | 488 | if (host) { |
489 | *host++ = 0; | |
48e671d5 | 490 | host = cleanhostname(host); |
8efc0c15 | 491 | suser = argv[i]; |
492 | if (*suser == '\0') | |
493 | suser = pwd->pw_name; | |
4116f5c0 | 494 | else if (!okname(suser)) |
0ec7661a | 495 | continue; |
4116f5c0 | 496 | addargs(&alist, "-l"); |
497 | addargs(&alist, "%s", suser); | |
48e671d5 | 498 | } else { |
499 | host = cleanhostname(argv[i]); | |
48e671d5 | 500 | } |
4116f5c0 | 501 | addargs(&alist, "%s", host); |
502 | addargs(&alist, "%s", cmd); | |
503 | addargs(&alist, "%s", src); | |
504 | addargs(&alist, "%s%s%s:%s", | |
505 | tuser ? tuser : "", tuser ? "@" : "", | |
506 | thost, targ); | |
507 | if (do_local_cmd(&alist) != 0) | |
815a8407 | 508 | errs = 1; |
5260325f | 509 | } else { /* local to remote */ |
8efc0c15 | 510 | if (remin == -1) { |
c0a8e7bb | 511 | xasprintf(&bp, "%s -t %s", cmd, targ); |
48e671d5 | 512 | host = cleanhostname(thost); |
2e73a022 | 513 | if (do_cmd(host, tuser, bp, &remin, |
ac93e676 | 514 | &remout) < 0) |
5260325f | 515 | exit(1); |
8efc0c15 | 516 | if (response() < 0) |
517 | exit(1); | |
5260325f | 518 | (void) xfree(bp); |
8efc0c15 | 519 | } |
5260325f | 520 | source(1, argv + i); |
8efc0c15 | 521 | } |
522 | } | |
2b8dc5e3 | 523 | xfree(arg); |
8efc0c15 | 524 | } |
525 | ||
526 | void | |
cf3248b8 | 527 | tolocal(int argc, char **argv) |
8efc0c15 | 528 | { |
8efc0c15 | 529 | char *bp, *host, *src, *suser; |
4116f5c0 | 530 | arglist alist; |
ac93e676 | 531 | int i; |
4116f5c0 | 532 | |
533 | memset(&alist, '\0', sizeof(alist)); | |
534 | alist.list = NULL; | |
8efc0c15 | 535 | |
536 | for (i = 0; i < argc - 1; i++) { | |
5260325f | 537 | if (!(src = colon(argv[i]))) { /* Local to local. */ |
4116f5c0 | 538 | freeargs(&alist); |
539 | addargs(&alist, "%s", _PATH_CP); | |
540 | if (iamrecursive) | |
541 | addargs(&alist, "-r"); | |
542 | if (pflag) | |
543 | addargs(&alist, "-p"); | |
544 | addargs(&alist, "%s", argv[i]); | |
545 | addargs(&alist, "%s", argv[argc-1]); | |
546 | if (do_local_cmd(&alist)) | |
8efc0c15 | 547 | ++errs; |
8efc0c15 | 548 | continue; |
549 | } | |
550 | *src++ = 0; | |
551 | if (*src == 0) | |
552 | src = "."; | |
15748b4d | 553 | if ((host = strrchr(argv[i], '@')) == NULL) { |
8efc0c15 | 554 | host = argv[i]; |
555 | suser = NULL; | |
556 | } else { | |
557 | *host++ = 0; | |
558 | suser = argv[i]; | |
559 | if (*suser == '\0') | |
560 | suser = pwd->pw_name; | |
8efc0c15 | 561 | } |
48e671d5 | 562 | host = cleanhostname(host); |
c0a8e7bb | 563 | xasprintf(&bp, "%s -f %s", cmd, src); |
ac93e676 | 564 | if (do_cmd(host, suser, bp, &remin, &remout) < 0) { |
5260325f | 565 | (void) xfree(bp); |
566 | ++errs; | |
567 | continue; | |
8efc0c15 | 568 | } |
5260325f | 569 | xfree(bp); |
8efc0c15 | 570 | sink(1, argv + argc - 1); |
5260325f | 571 | (void) close(remin); |
8efc0c15 | 572 | remin = remout = -1; |
573 | } | |
574 | } | |
575 | ||
576 | void | |
cf3248b8 | 577 | source(int argc, char **argv) |
8efc0c15 | 578 | { |
579 | struct stat stb; | |
580 | static BUF buffer; | |
581 | BUF *bp; | |
05624c18 | 582 | off_t i, amt, statbytes; |
583 | size_t result; | |
a056dfa2 | 584 | int fd = -1, haderr, indx; |
8efc0c15 | 585 | char *last, *name, buf[2048]; |
0fc791ba | 586 | int len; |
8efc0c15 | 587 | |
588 | for (indx = 0; indx < argc; ++indx) { | |
5260325f | 589 | name = argv[indx]; |
8efc0c15 | 590 | statbytes = 0; |
0fc791ba | 591 | len = strlen(name); |
592 | while (len > 1 && name[len-1] == '/') | |
593 | name[--len] = '\0'; | |
5720c10e | 594 | if (strchr(name, '\n') != NULL) { |
595 | run_err("%s: skipping, filename contains a newline", | |
596 | name); | |
597 | goto next; | |
598 | } | |
8efc0c15 | 599 | if ((fd = open(name, O_RDONLY, 0)) < 0) |
600 | goto syserr; | |
601 | if (fstat(fd, &stb) < 0) { | |
602 | syserr: run_err("%s: %s", name, strerror(errno)); | |
603 | goto next; | |
604 | } | |
605 | switch (stb.st_mode & S_IFMT) { | |
606 | case S_IFREG: | |
607 | break; | |
608 | case S_IFDIR: | |
609 | if (iamrecursive) { | |
610 | rsource(name, &stb); | |
611 | goto next; | |
612 | } | |
613 | /* FALLTHROUGH */ | |
614 | default: | |
615 | run_err("%s: not a regular file", name); | |
616 | goto next; | |
617 | } | |
618 | if ((last = strrchr(name, '/')) == NULL) | |
619 | last = name; | |
620 | else | |
621 | ++last; | |
622 | curfile = last; | |
623 | if (pflag) { | |
624 | /* | |
625 | * Make it compatible with possible future | |
626 | * versions expecting microseconds. | |
627 | */ | |
0ed28836 | 628 | (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n", |
1e3b8b07 | 629 | (u_long) stb.st_mtime, |
630 | (u_long) stb.st_atime); | |
dc54438a | 631 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
8efc0c15 | 632 | if (response() < 0) |
633 | goto next; | |
634 | } | |
635 | #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) | |
bf1d27bd | 636 | snprintf(buf, sizeof buf, "C%04o %lld %s\n", |
1e3b8b07 | 637 | (u_int) (stb.st_mode & FILEMODEMASK), |
419094c6 | 638 | (long long)stb.st_size, last); |
5260325f | 639 | if (verbose_mode) { |
640 | fprintf(stderr, "Sending file modes: %s", buf); | |
5260325f | 641 | } |
dc54438a | 642 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
8efc0c15 | 643 | if (response() < 0) |
644 | goto next; | |
645 | if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) { | |
29accf74 | 646 | next: if (fd != -1) { |
647 | (void) close(fd); | |
648 | fd = -1; | |
649 | } | |
8efc0c15 | 650 | continue; |
651 | } | |
b65c3807 | 652 | if (showprogress) |
653 | start_progress_meter(curfile, stb.st_size, &statbytes); | |
8efc0c15 | 654 | /* Keep writing after an error so that we stay sync'd up. */ |
655 | for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { | |
656 | amt = bp->cnt; | |
657 | if (i + amt > stb.st_size) | |
658 | amt = stb.st_size - i; | |
659 | if (!haderr) { | |
1d1ffb87 | 660 | result = atomicio(read, fd, bp->buf, amt); |
8efc0c15 | 661 | if (result != amt) |
05624c18 | 662 | haderr = errno; |
8efc0c15 | 663 | } |
664 | if (haderr) | |
dc54438a | 665 | (void) atomicio(vwrite, remout, bp->buf, amt); |
8efc0c15 | 666 | else { |
dc54438a | 667 | result = atomicio(vwrite, remout, bp->buf, amt); |
8efc0c15 | 668 | if (result != amt) |
05624c18 | 669 | haderr = errno; |
8efc0c15 | 670 | statbytes += result; |
671 | } | |
10adbb52 | 672 | if (limit_rate) |
6ea3c52a | 673 | bwlimit(amt); |
8efc0c15 | 674 | } |
5260325f | 675 | if (showprogress) |
b65c3807 | 676 | stop_progress_meter(); |
8efc0c15 | 677 | |
29accf74 | 678 | if (fd != -1) { |
679 | if (close(fd) < 0 && !haderr) | |
680 | haderr = errno; | |
681 | fd = -1; | |
682 | } | |
8efc0c15 | 683 | if (!haderr) |
dc54438a | 684 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 685 | else |
686 | run_err("%s: %s", name, strerror(haderr)); | |
5260325f | 687 | (void) response(); |
8efc0c15 | 688 | } |
689 | } | |
690 | ||
691 | void | |
cf3248b8 | 692 | rsource(char *name, struct stat *statp) |
8efc0c15 | 693 | { |
694 | DIR *dirp; | |
695 | struct dirent *dp; | |
696 | char *last, *vect[1], path[1100]; | |
697 | ||
698 | if (!(dirp = opendir(name))) { | |
699 | run_err("%s: %s", name, strerror(errno)); | |
700 | return; | |
701 | } | |
702 | last = strrchr(name, '/'); | |
703 | if (last == 0) | |
704 | last = name; | |
705 | else | |
706 | last++; | |
707 | if (pflag) { | |
0ed28836 | 708 | (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n", |
1e3b8b07 | 709 | (u_long) statp->st_mtime, |
710 | (u_long) statp->st_atime); | |
dc54438a | 711 | (void) atomicio(vwrite, remout, path, strlen(path)); |
8efc0c15 | 712 | if (response() < 0) { |
713 | closedir(dirp); | |
714 | return; | |
715 | } | |
716 | } | |
0ed28836 | 717 | (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n", |
1e3b8b07 | 718 | (u_int) (statp->st_mode & FILEMODEMASK), 0, last); |
5260325f | 719 | if (verbose_mode) |
720 | fprintf(stderr, "Entering directory: %s", path); | |
dc54438a | 721 | (void) atomicio(vwrite, remout, path, strlen(path)); |
8efc0c15 | 722 | if (response() < 0) { |
723 | closedir(dirp); | |
724 | return; | |
725 | } | |
e5ff6ecf | 726 | while ((dp = readdir(dirp)) != NULL) { |
8efc0c15 | 727 | if (dp->d_ino == 0) |
728 | continue; | |
729 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) | |
730 | continue; | |
731 | if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) { | |
732 | run_err("%s/%s: name too long", name, dp->d_name); | |
733 | continue; | |
734 | } | |
0ed28836 | 735 | (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name); |
8efc0c15 | 736 | vect[0] = path; |
737 | source(1, vect); | |
738 | } | |
5260325f | 739 | (void) closedir(dirp); |
dc54438a | 740 | (void) atomicio(vwrite, remout, "E\n", 2); |
5260325f | 741 | (void) response(); |
8efc0c15 | 742 | } |
743 | ||
6ea3c52a | 744 | void |
745 | bwlimit(int amount) | |
746 | { | |
747 | static struct timeval bwstart, bwend; | |
748 | static int lamt, thresh = 16384; | |
ca75d7de | 749 | u_int64_t waitlen; |
6ea3c52a | 750 | struct timespec ts, rm; |
751 | ||
752 | if (!timerisset(&bwstart)) { | |
753 | gettimeofday(&bwstart, NULL); | |
754 | return; | |
755 | } | |
756 | ||
757 | lamt += amount; | |
758 | if (lamt < thresh) | |
759 | return; | |
760 | ||
761 | gettimeofday(&bwend, NULL); | |
762 | timersub(&bwend, &bwstart, &bwend); | |
763 | if (!timerisset(&bwend)) | |
764 | return; | |
765 | ||
766 | lamt *= 8; | |
ca75d7de | 767 | waitlen = (double)1000000L * lamt / limit_rate; |
6ea3c52a | 768 | |
ca75d7de | 769 | bwstart.tv_sec = waitlen / 1000000L; |
770 | bwstart.tv_usec = waitlen % 1000000L; | |
6ea3c52a | 771 | |
772 | if (timercmp(&bwstart, &bwend, >)) { | |
773 | timersub(&bwstart, &bwend, &bwend); | |
774 | ||
775 | /* Adjust the wait time */ | |
776 | if (bwend.tv_sec) { | |
777 | thresh /= 2; | |
778 | if (thresh < 2048) | |
779 | thresh = 2048; | |
780 | } else if (bwend.tv_usec < 100) { | |
781 | thresh *= 2; | |
782 | if (thresh > 32768) | |
783 | thresh = 32768; | |
784 | } | |
785 | ||
786 | TIMEVAL_TO_TIMESPEC(&bwend, &ts); | |
787 | while (nanosleep(&ts, &rm) == -1) { | |
788 | if (errno != EINTR) | |
789 | break; | |
790 | ts = rm; | |
791 | } | |
792 | } | |
793 | ||
794 | lamt = 0; | |
795 | gettimeofday(&bwstart, NULL); | |
796 | } | |
797 | ||
8efc0c15 | 798 | void |
cf3248b8 | 799 | sink(int argc, char **argv) |
8efc0c15 | 800 | { |
801 | static BUF buffer; | |
802 | struct stat stb; | |
5260325f | 803 | enum { |
804 | YES, NO, DISPLAYED | |
805 | } wrerr; | |
8efc0c15 | 806 | BUF *bp; |
05624c18 | 807 | off_t i; |
2ceb8101 | 808 | size_t j, count; |
ac93e676 | 809 | int amt, exists, first, ofd; |
810 | mode_t mode, omode, mask; | |
b65c3807 | 811 | off_t size, statbytes; |
14a9a859 | 812 | int setimes, targisdir, wrerrno = 0; |
8efc0c15 | 813 | char ch, *cp, *np, *targ, *why, *vect[1], buf[2048]; |
188adeb2 | 814 | struct timeval tv[2]; |
8efc0c15 | 815 | |
36967a16 | 816 | #define atime tv[0] |
817 | #define mtime tv[1] | |
007607ab | 818 | #define SCREWUP(str) { why = str; goto screwup; } |
8efc0c15 | 819 | |
820 | setimes = targisdir = 0; | |
821 | mask = umask(0); | |
822 | if (!pflag) | |
5260325f | 823 | (void) umask(mask); |
8efc0c15 | 824 | if (argc != 1) { |
825 | run_err("ambiguous target"); | |
826 | exit(1); | |
827 | } | |
828 | targ = *argv; | |
829 | if (targetshouldbedirectory) | |
830 | verifydir(targ); | |
5260325f | 831 | |
dc54438a | 832 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 833 | if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) |
834 | targisdir = 1; | |
835 | for (first = 1;; first = 0) { | |
836 | cp = buf; | |
05624c18 | 837 | if (atomicio(read, remin, cp, 1) != 1) |
8efc0c15 | 838 | return; |
839 | if (*cp++ == '\n') | |
840 | SCREWUP("unexpected <newline>"); | |
841 | do { | |
1d1ffb87 | 842 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 843 | SCREWUP("lost connection"); |
844 | *cp++ = ch; | |
845 | } while (cp < &buf[sizeof(buf) - 1] && ch != '\n'); | |
846 | *cp = 0; | |
f09aa22c | 847 | if (verbose_mode) |
848 | fprintf(stderr, "Sink: %s", buf); | |
8efc0c15 | 849 | |
850 | if (buf[0] == '\01' || buf[0] == '\02') { | |
851 | if (iamremote == 0) | |
dc54438a | 852 | (void) atomicio(vwrite, STDERR_FILENO, |
71c0d06a | 853 | buf + 1, strlen(buf + 1)); |
8efc0c15 | 854 | if (buf[0] == '\02') |
855 | exit(1); | |
856 | ++errs; | |
857 | continue; | |
858 | } | |
859 | if (buf[0] == 'E') { | |
dc54438a | 860 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 861 | return; |
862 | } | |
8efc0c15 | 863 | if (ch == '\n') |
864 | *--cp = 0; | |
865 | ||
8efc0c15 | 866 | cp = buf; |
867 | if (*cp == 'T') { | |
868 | setimes++; | |
869 | cp++; | |
36967a16 | 870 | mtime.tv_sec = strtol(cp, &cp, 10); |
871 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 872 | SCREWUP("mtime.sec not delimited"); |
36967a16 | 873 | mtime.tv_usec = strtol(cp, &cp, 10); |
874 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 875 | SCREWUP("mtime.usec not delimited"); |
36967a16 | 876 | atime.tv_sec = strtol(cp, &cp, 10); |
877 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 878 | SCREWUP("atime.sec not delimited"); |
36967a16 | 879 | atime.tv_usec = strtol(cp, &cp, 10); |
880 | if (!cp || *cp++ != '\0') | |
8efc0c15 | 881 | SCREWUP("atime.usec not delimited"); |
dc54438a | 882 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 883 | continue; |
884 | } | |
885 | if (*cp != 'C' && *cp != 'D') { | |
886 | /* | |
887 | * Check for the case "rcp remote:foo\* local:bar". | |
888 | * In this case, the line "No match." can be returned | |
889 | * by the shell before the rcp command on the remote is | |
890 | * executed so the ^Aerror_message convention isn't | |
891 | * followed. | |
892 | */ | |
893 | if (first) { | |
894 | run_err("%s", cp); | |
895 | exit(1); | |
896 | } | |
897 | SCREWUP("expected control record"); | |
898 | } | |
899 | mode = 0; | |
900 | for (++cp; cp < buf + 5; cp++) { | |
901 | if (*cp < '0' || *cp > '7') | |
902 | SCREWUP("bad mode"); | |
903 | mode = (mode << 3) | (*cp - '0'); | |
904 | } | |
905 | if (*cp++ != ' ') | |
906 | SCREWUP("mode not delimited"); | |
907 | ||
e5ff6ecf | 908 | for (size = 0; isdigit(*cp);) |
8efc0c15 | 909 | size = size * 10 + (*cp++ - '0'); |
910 | if (*cp++ != ' ') | |
911 | SCREWUP("size not delimited"); | |
f09aa22c | 912 | if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) { |
913 | run_err("error: unexpected filename: %s", cp); | |
914 | exit(1); | |
915 | } | |
8efc0c15 | 916 | if (targisdir) { |
917 | static char *namebuf; | |
2ceb8101 | 918 | static size_t cursize; |
8efc0c15 | 919 | size_t need; |
920 | ||
921 | need = strlen(targ) + strlen(cp) + 250; | |
0ed28836 | 922 | if (need > cursize) { |
923 | if (namebuf) | |
924 | xfree(namebuf); | |
5260325f | 925 | namebuf = xmalloc(need); |
0ed28836 | 926 | cursize = need; |
927 | } | |
928 | (void) snprintf(namebuf, need, "%s%s%s", targ, | |
39f9599a | 929 | strcmp(targ, "/") ? "/" : "", cp); |
8efc0c15 | 930 | np = namebuf; |
931 | } else | |
932 | np = targ; | |
933 | curfile = cp; | |
934 | exists = stat(np, &stb) == 0; | |
935 | if (buf[0] == 'D') { | |
936 | int mod_flag = pflag; | |
f09aa22c | 937 | if (!iamrecursive) |
938 | SCREWUP("received directory without -r"); | |
8efc0c15 | 939 | if (exists) { |
940 | if (!S_ISDIR(stb.st_mode)) { | |
941 | errno = ENOTDIR; | |
942 | goto bad; | |
943 | } | |
944 | if (pflag) | |
5260325f | 945 | (void) chmod(np, mode); |
8efc0c15 | 946 | } else { |
5260325f | 947 | /* Handle copying from a read-only |
948 | directory */ | |
8efc0c15 | 949 | mod_flag = 1; |
950 | if (mkdir(np, mode | S_IRWXU) < 0) | |
951 | goto bad; | |
952 | } | |
5c470997 | 953 | vect[0] = xstrdup(np); |
8efc0c15 | 954 | sink(1, vect); |
955 | if (setimes) { | |
956 | setimes = 0; | |
e68225b2 | 957 | if (utimes(vect[0], tv) < 0) |
5260325f | 958 | run_err("%s: set times: %s", |
e68225b2 | 959 | vect[0], strerror(errno)); |
8efc0c15 | 960 | } |
961 | if (mod_flag) | |
e68225b2 | 962 | (void) chmod(vect[0], mode); |
963 | if (vect[0]) | |
964 | xfree(vect[0]); | |
8efc0c15 | 965 | continue; |
966 | } | |
967 | omode = mode; | |
968 | mode |= S_IWRITE; | |
3e4fc5f9 | 969 | if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { |
8efc0c15 | 970 | bad: run_err("%s: %s", np, strerror(errno)); |
971 | continue; | |
972 | } | |
dc54438a | 973 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 974 | if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) { |
5260325f | 975 | (void) close(ofd); |
8efc0c15 | 976 | continue; |
977 | } | |
978 | cp = bp->buf; | |
979 | wrerr = NO; | |
980 | ||
8efc0c15 | 981 | statbytes = 0; |
b65c3807 | 982 | if (showprogress) |
983 | start_progress_meter(curfile, size, &statbytes); | |
8efc0c15 | 984 | for (count = i = 0; i < size; i += 4096) { |
985 | amt = 4096; | |
986 | if (i + amt > size) | |
987 | amt = size - i; | |
988 | count += amt; | |
989 | do { | |
f581b6e8 | 990 | j = atomicio(read, remin, cp, amt); |
05624c18 | 991 | if (j == 0) { |
8efc0c15 | 992 | run_err("%s", j ? strerror(errno) : |
e5ff6ecf | 993 | "dropped connection"); |
8efc0c15 | 994 | exit(1); |
995 | } | |
996 | amt -= j; | |
997 | cp += j; | |
5260325f | 998 | statbytes += j; |
8efc0c15 | 999 | } while (amt > 0); |
b6453d99 | 1000 | |
10adbb52 | 1001 | if (limit_rate) |
6ea3c52a | 1002 | bwlimit(4096); |
1003 | ||
8efc0c15 | 1004 | if (count == bp->cnt) { |
1005 | /* Keep reading so we stay sync'd up. */ | |
1006 | if (wrerr == NO) { | |
05624c18 | 1007 | if (atomicio(vwrite, ofd, bp->buf, |
1008 | count) != count) { | |
8efc0c15 | 1009 | wrerr = YES; |
05624c18 | 1010 | wrerrno = errno; |
8efc0c15 | 1011 | } |
1012 | } | |
1013 | count = 0; | |
1014 | cp = bp->buf; | |
1015 | } | |
1016 | } | |
1017 | if (showprogress) | |
b65c3807 | 1018 | stop_progress_meter(); |
8efc0c15 | 1019 | if (count != 0 && wrerr == NO && |
05624c18 | 1020 | atomicio(vwrite, ofd, bp->buf, count) != count) { |
8efc0c15 | 1021 | wrerr = YES; |
05624c18 | 1022 | wrerrno = errno; |
8efc0c15 | 1023 | } |
4a9539a4 | 1024 | if (wrerr == NO && (!exists || S_ISREG(stb.st_mode)) && |
1025 | ftruncate(ofd, size) != 0) { | |
8efc0c15 | 1026 | run_err("%s: truncate: %s", np, strerror(errno)); |
1027 | wrerr = DISPLAYED; | |
1028 | } | |
8efc0c15 | 1029 | if (pflag) { |
1030 | if (exists || omode != mode) | |
77bb0bca | 1031 | #ifdef HAVE_FCHMOD |
7e693c81 | 1032 | if (fchmod(ofd, omode)) { |
77bb0bca | 1033 | #else /* HAVE_FCHMOD */ |
7e693c81 | 1034 | if (chmod(np, omode)) { |
77bb0bca | 1035 | #endif /* HAVE_FCHMOD */ |
8efc0c15 | 1036 | run_err("%s: set mode: %s", |
e5ff6ecf | 1037 | np, strerror(errno)); |
7e693c81 | 1038 | wrerr = DISPLAYED; |
1039 | } | |
8efc0c15 | 1040 | } else { |
1041 | if (!exists && omode != mode) | |
77bb0bca | 1042 | #ifdef HAVE_FCHMOD |
7e693c81 | 1043 | if (fchmod(ofd, omode & ~mask)) { |
77bb0bca | 1044 | #else /* HAVE_FCHMOD */ |
7e693c81 | 1045 | if (chmod(np, omode & ~mask)) { |
77bb0bca | 1046 | #endif /* HAVE_FCHMOD */ |
8efc0c15 | 1047 | run_err("%s: set mode: %s", |
e5ff6ecf | 1048 | np, strerror(errno)); |
7e693c81 | 1049 | wrerr = DISPLAYED; |
1050 | } | |
8efc0c15 | 1051 | } |
704b1659 | 1052 | if (close(ofd) == -1) { |
1053 | wrerr = YES; | |
1054 | wrerrno = errno; | |
1055 | } | |
5260325f | 1056 | (void) response(); |
8efc0c15 | 1057 | if (setimes && wrerr == NO) { |
1058 | setimes = 0; | |
188adeb2 | 1059 | if (utimes(np, tv) < 0) { |
8efc0c15 | 1060 | run_err("%s: set times: %s", |
e5ff6ecf | 1061 | np, strerror(errno)); |
8efc0c15 | 1062 | wrerr = DISPLAYED; |
1063 | } | |
1064 | } | |
5260325f | 1065 | switch (wrerr) { |
8efc0c15 | 1066 | case YES: |
1067 | run_err("%s: %s", np, strerror(wrerrno)); | |
1068 | break; | |
1069 | case NO: | |
dc54438a | 1070 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 1071 | break; |
1072 | case DISPLAYED: | |
1073 | break; | |
1074 | } | |
1075 | } | |
1076 | screwup: | |
1077 | run_err("protocol error: %s", why); | |
1078 | exit(1); | |
1079 | } | |
1080 | ||
1081 | int | |
d5bb9418 | 1082 | response(void) |
8efc0c15 | 1083 | { |
1084 | char ch, *cp, resp, rbuf[2048]; | |
1085 | ||
1d1ffb87 | 1086 | if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp)) |
8efc0c15 | 1087 | lostconn(0); |
1088 | ||
1089 | cp = rbuf; | |
5260325f | 1090 | switch (resp) { |
1091 | case 0: /* ok */ | |
8efc0c15 | 1092 | return (0); |
1093 | default: | |
1094 | *cp++ = resp; | |
1095 | /* FALLTHROUGH */ | |
5260325f | 1096 | case 1: /* error, followed by error msg */ |
1097 | case 2: /* fatal error, "" */ | |
8efc0c15 | 1098 | do { |
1d1ffb87 | 1099 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 1100 | lostconn(0); |
1101 | *cp++ = ch; | |
1102 | } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n'); | |
1103 | ||
1104 | if (!iamremote) | |
dc54438a | 1105 | (void) atomicio(vwrite, STDERR_FILENO, rbuf, cp - rbuf); |
8efc0c15 | 1106 | ++errs; |
1107 | if (resp == 1) | |
1108 | return (-1); | |
1109 | exit(1); | |
1110 | } | |
1111 | /* NOTREACHED */ | |
1112 | } | |
1113 | ||
1114 | void | |
d5bb9418 | 1115 | usage(void) |
8efc0c15 | 1116 | { |
f1278af7 | 1117 | (void) fprintf(stderr, |
433e60ac | 1118 | "usage: scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]\n" |
1119 | " [-l limit] [-o ssh_option] [-P port] [-S program]\n" | |
3015d321 | 1120 | " [[user@]host1:]file1 [...] [[user@]host2:]file2\n"); |
8efc0c15 | 1121 | exit(1); |
1122 | } | |
1123 | ||
1124 | void | |
5260325f | 1125 | run_err(const char *fmt,...) |
8efc0c15 | 1126 | { |
1127 | static FILE *fp; | |
1128 | va_list ap; | |
8efc0c15 | 1129 | |
1130 | ++errs; | |
d6157b67 | 1131 | if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) { |
1132 | (void) fprintf(fp, "%c", 0x01); | |
1133 | (void) fprintf(fp, "scp: "); | |
1134 | va_start(ap, fmt); | |
1135 | (void) vfprintf(fp, fmt, ap); | |
1136 | va_end(ap); | |
1137 | (void) fprintf(fp, "\n"); | |
1138 | (void) fflush(fp); | |
1139 | } | |
5260325f | 1140 | |
1141 | if (!iamremote) { | |
b92964b7 | 1142 | va_start(ap, fmt); |
5260325f | 1143 | vfprintf(stderr, fmt, ap); |
b92964b7 | 1144 | va_end(ap); |
5260325f | 1145 | fprintf(stderr, "\n"); |
1146 | } | |
8efc0c15 | 1147 | } |
1148 | ||
8efc0c15 | 1149 | void |
cf3248b8 | 1150 | verifydir(char *cp) |
8efc0c15 | 1151 | { |
1152 | struct stat stb; | |
1153 | ||
1154 | if (!stat(cp, &stb)) { | |
1155 | if (S_ISDIR(stb.st_mode)) | |
1156 | return; | |
1157 | errno = ENOTDIR; | |
1158 | } | |
1159 | run_err("%s: %s", cp, strerror(errno)); | |
8f4ab41b | 1160 | killchild(0); |
8efc0c15 | 1161 | } |
1162 | ||
1163 | int | |
cf3248b8 | 1164 | okname(char *cp0) |
8efc0c15 | 1165 | { |
1166 | int c; | |
1167 | char *cp; | |
1168 | ||
1169 | cp = cp0; | |
1170 | do { | |
cb220a93 | 1171 | c = (int)*cp; |
8efc0c15 | 1172 | if (c & 0200) |
1173 | goto bad; | |
0ec7661a | 1174 | if (!isalpha(c) && !isdigit(c)) { |
1175 | switch (c) { | |
1176 | case '\'': | |
1177 | case '"': | |
1178 | case '`': | |
1179 | case ' ': | |
1180 | case '#': | |
1181 | goto bad; | |
1182 | default: | |
1183 | break; | |
1184 | } | |
1185 | } | |
8efc0c15 | 1186 | } while (*++cp); |
1187 | return (1); | |
1188 | ||
c8d54615 | 1189 | bad: fprintf(stderr, "%s: invalid user name\n", cp0); |
8efc0c15 | 1190 | return (0); |
1191 | } | |
1192 | ||
1193 | BUF * | |
cf3248b8 | 1194 | allocbuf(BUF *bp, int fd, int blksize) |
8efc0c15 | 1195 | { |
1196 | size_t size; | |
98a7c37b | 1197 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE |
8efc0c15 | 1198 | struct stat stb; |
1199 | ||
1200 | if (fstat(fd, &stb) < 0) { | |
1201 | run_err("fstat: %s", strerror(errno)); | |
1202 | return (0); | |
1203 | } | |
a0a14bcd | 1204 | size = roundup(stb.st_blksize, blksize); |
1205 | if (size == 0) | |
5260325f | 1206 | size = blksize; |
98a7c37b | 1207 | #else /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
2b87da3b | 1208 | size = blksize; |
98a7c37b | 1209 | #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
8efc0c15 | 1210 | if (bp->cnt >= size) |
1211 | return (bp); | |
5260325f | 1212 | if (bp->buf == NULL) |
1213 | bp->buf = xmalloc(size); | |
1214 | else | |
c5d10563 | 1215 | bp->buf = xrealloc(bp->buf, 1, size); |
46660a9e | 1216 | memset(bp->buf, 0, size); |
8efc0c15 | 1217 | bp->cnt = size; |
1218 | return (bp); | |
1219 | } | |
1220 | ||
1221 | void | |
cf3248b8 | 1222 | lostconn(int signo) |
8efc0c15 | 1223 | { |
1224 | if (!iamremote) | |
08c260ea | 1225 | write(STDERR_FILENO, "lost connection\n", 16); |
1226 | if (signo) | |
1227 | _exit(1); | |
1228 | else | |
1229 | exit(1); | |
8efc0c15 | 1230 | } |