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c1cb7bae | 1 | /* $OpenBSD: scp.c,v 1.139 2006/03/25 13:17:02 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> | |
4095f623 | 77 | #ifdef HAVE_SYS_STAT_H |
78 | # include <sys/stat.h> | |
79 | #endif | |
aa2eae64 | 80 | #include <sys/wait.h> |
68e39d38 | 81 | |
b6438382 | 82 | #include <ctype.h> |
68e39d38 | 83 | #include <dirent.h> |
ada68823 | 84 | #include <signal.h> |
8efc0c15 | 85 | |
8efc0c15 | 86 | #include "xmalloc.h" |
42f11eb2 | 87 | #include "atomicio.h" |
88 | #include "pathnames.h" | |
89 | #include "log.h" | |
36a358ca | 90 | #include "misc.h" |
b65c3807 | 91 | #include "progressmeter.h" |
8efc0c15 | 92 | |
260d427b | 93 | extern char *__progname; |
260d427b | 94 | |
6ea3c52a | 95 | void bwlimit(int); |
96 | ||
8a624ebf | 97 | /* Struct for addargs */ |
98 | arglist args; | |
94ec8c6b | 99 | |
6ea3c52a | 100 | /* Bandwidth limit */ |
10adbb52 | 101 | off_t limit_rate = 0; |
6ea3c52a | 102 | |
8efc0c15 | 103 | /* Name of current file being transferred. */ |
104 | char *curfile; | |
105 | ||
106 | /* This is set to non-zero to enable verbose mode. */ | |
5260325f | 107 | int verbose_mode = 0; |
8efc0c15 | 108 | |
8efc0c15 | 109 | /* This is set to zero if the progressmeter is not desired. */ |
110 | int showprogress = 1; | |
111 | ||
2e73a022 | 112 | /* This is the program to execute for the secured connection. ("ssh" or -S) */ |
42f11eb2 | 113 | char *ssh_program = _PATH_SSH_PROGRAM; |
2e73a022 | 114 | |
252d1a24 | 115 | /* This is used to store the pid of ssh_program */ |
0f764b2f | 116 | pid_t do_cmd_pid = -1; |
117 | ||
118 | static void | |
119 | killchild(int signo) | |
120 | { | |
3c03ad3f | 121 | if (do_cmd_pid > 1) { |
8f4ab41b | 122 | kill(do_cmd_pid, signo ? signo : SIGTERM); |
3c03ad3f | 123 | waitpid(do_cmd_pid, NULL, 0); |
124 | } | |
0f764b2f | 125 | |
8f4ab41b | 126 | if (signo) |
127 | _exit(1); | |
128 | exit(1); | |
0f764b2f | 129 | } |
252d1a24 | 130 | |
4116f5c0 | 131 | static int |
132 | do_local_cmd(arglist *a) | |
133 | { | |
134 | u_int i; | |
135 | int status; | |
136 | pid_t pid; | |
137 | ||
138 | if (a->num == 0) | |
139 | fatal("do_local_cmd: no arguments"); | |
140 | ||
141 | if (verbose_mode) { | |
142 | fprintf(stderr, "Executing:"); | |
143 | for (i = 0; i < a->num; i++) | |
144 | fprintf(stderr, " %s", a->list[i]); | |
145 | fprintf(stderr, "\n"); | |
146 | } | |
147 | if ((pid = fork()) == -1) | |
148 | fatal("do_local_cmd: fork: %s", strerror(errno)); | |
149 | ||
150 | if (pid == 0) { | |
151 | execvp(a->list[0], a->list); | |
152 | perror(a->list[0]); | |
153 | exit(1); | |
154 | } | |
155 | ||
156 | do_cmd_pid = pid; | |
157 | signal(SIGTERM, killchild); | |
158 | signal(SIGINT, killchild); | |
159 | signal(SIGHUP, killchild); | |
160 | ||
161 | while (waitpid(pid, &status, 0) == -1) | |
162 | if (errno != EINTR) | |
163 | fatal("do_local_cmd: waitpid: %s", strerror(errno)); | |
164 | ||
165 | do_cmd_pid = -1; | |
166 | ||
167 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
168 | return (-1); | |
169 | ||
170 | return (0); | |
171 | } | |
172 | ||
aa3378df | 173 | /* |
174 | * This function executes the given command as the specified user on the | |
175 | * given host. This returns < 0 if execution fails, and >= 0 otherwise. This | |
176 | * assigns the input and output file descriptors on success. | |
177 | */ | |
8efc0c15 | 178 | |
6ae2364d | 179 | int |
2e73a022 | 180 | do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc) |
8efc0c15 | 181 | { |
5260325f | 182 | int pin[2], pout[2], reserved[2]; |
183 | ||
184 | if (verbose_mode) | |
0b2988ca | 185 | fprintf(stderr, |
186 | "Executing: program %s host %s, user %s, command %s\n", | |
187 | ssh_program, host, | |
188 | remuser ? remuser : "(unspecified)", cmd); | |
5260325f | 189 | |
aa3378df | 190 | /* |
191 | * Reserve two descriptors so that the real pipes won't get | |
192 | * descriptors 0 and 1 because that will screw up dup2 below. | |
193 | */ | |
5260325f | 194 | pipe(reserved); |
195 | ||
196 | /* Create a socket pair for communicating with ssh. */ | |
197 | if (pipe(pin) < 0) | |
198 | fatal("pipe: %s", strerror(errno)); | |
199 | if (pipe(pout) < 0) | |
200 | fatal("pipe: %s", strerror(errno)); | |
201 | ||
202 | /* Free the reserved descriptors. */ | |
203 | close(reserved[0]); | |
204 | close(reserved[1]); | |
205 | ||
1fb23629 | 206 | /* Fork a child to execute the command on the remote host using ssh. */ |
252d1a24 | 207 | do_cmd_pid = fork(); |
208 | if (do_cmd_pid == 0) { | |
5260325f | 209 | /* Child. */ |
210 | close(pin[1]); | |
211 | close(pout[0]); | |
212 | dup2(pin[0], 0); | |
213 | dup2(pout[1], 1); | |
214 | close(pin[0]); | |
215 | close(pout[1]); | |
216 | ||
4116f5c0 | 217 | replacearg(&args, 0, "%s", ssh_program); |
94ec8c6b | 218 | if (remuser != NULL) |
8a624ebf | 219 | addargs(&args, "-l%s", remuser); |
220 | addargs(&args, "%s", host); | |
221 | addargs(&args, "%s", cmd); | |
5260325f | 222 | |
94ec8c6b | 223 | execvp(ssh_program, args.list); |
2e73a022 | 224 | perror(ssh_program); |
5260325f | 225 | exit(1); |
252d1a24 | 226 | } else if (do_cmd_pid == -1) { |
227 | fatal("fork: %s", strerror(errno)); | |
8efc0c15 | 228 | } |
5260325f | 229 | /* Parent. Close the other side, and return the local side. */ |
230 | close(pin[0]); | |
231 | *fdout = pin[1]; | |
232 | close(pout[1]); | |
233 | *fdin = pout[0]; | |
0f764b2f | 234 | signal(SIGTERM, killchild); |
235 | signal(SIGINT, killchild); | |
236 | signal(SIGHUP, killchild); | |
5260325f | 237 | return 0; |
8efc0c15 | 238 | } |
239 | ||
8efc0c15 | 240 | typedef struct { |
2ceb8101 | 241 | size_t cnt; |
8efc0c15 | 242 | char *buf; |
243 | } BUF; | |
244 | ||
5260325f | 245 | BUF *allocbuf(BUF *, int, int); |
5260325f | 246 | void lostconn(int); |
247 | void nospace(void); | |
248 | int okname(char *); | |
249 | void run_err(const char *,...); | |
250 | void verifydir(char *); | |
8efc0c15 | 251 | |
8efc0c15 | 252 | struct passwd *pwd; |
5260325f | 253 | uid_t userid; |
8efc0c15 | 254 | int errs, remin, remout; |
255 | int pflag, iamremote, iamrecursive, targetshouldbedirectory; | |
256 | ||
257 | #define CMDNEEDS 64 | |
258 | char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */ | |
259 | ||
5260325f | 260 | int response(void); |
261 | void rsource(char *, struct stat *); | |
262 | void sink(int, char *[]); | |
263 | void source(int, char *[]); | |
264 | void tolocal(int, char *[]); | |
265 | void toremote(char *, int, char *[]); | |
266 | void usage(void); | |
8efc0c15 | 267 | |
268 | int | |
cf3248b8 | 269 | main(int argc, char **argv) |
8efc0c15 | 270 | { |
252d1a24 | 271 | int ch, fflag, tflag, status; |
6ea3c52a | 272 | double speed; |
273 | char *targ, *endp; | |
8efc0c15 | 274 | extern char *optarg; |
275 | extern int optind; | |
276 | ||
fd6168c1 | 277 | /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
278 | sanitise_stdfd(); | |
279 | ||
fda04d7d | 280 | __progname = ssh_get_progname(argv[0]); |
260d427b | 281 | |
4116f5c0 | 282 | memset(&args, '\0', sizeof(args)); |
94ec8c6b | 283 | args.list = NULL; |
4116f5c0 | 284 | addargs(&args, "%s", ssh_program); |
8a624ebf | 285 | addargs(&args, "-x"); |
3a222388 | 286 | addargs(&args, "-oForwardAgent no"); |
d20f3c9e | 287 | addargs(&args, "-oPermitLocalCommand no"); |
e1c5bfaf | 288 | addargs(&args, "-oClearAllForwardings yes"); |
94ec8c6b | 289 | |
8efc0c15 | 290 | fflag = tflag = 0; |
e6b15f23 | 291 | while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q1246S:o:F:")) != -1) |
5260325f | 292 | switch (ch) { |
293 | /* User-visible flags. */ | |
e6b15f23 | 294 | case '1': |
295 | case '2': | |
48e671d5 | 296 | case '4': |
48e671d5 | 297 | case '6': |
94ec8c6b | 298 | case 'C': |
8a624ebf | 299 | addargs(&args, "-%c", ch); |
48e671d5 | 300 | break; |
94ec8c6b | 301 | case 'o': |
302 | case 'c': | |
303 | case 'i': | |
f1278af7 | 304 | case 'F': |
8a624ebf | 305 | addargs(&args, "-%c%s", ch, optarg); |
8efc0c15 | 306 | break; |
307 | case 'P': | |
8a624ebf | 308 | addargs(&args, "-p%s", optarg); |
94ec8c6b | 309 | break; |
310 | case 'B': | |
8a624ebf | 311 | addargs(&args, "-oBatchmode yes"); |
94ec8c6b | 312 | break; |
6ea3c52a | 313 | case 'l': |
314 | speed = strtod(optarg, &endp); | |
315 | if (speed <= 0 || *endp != '\0') | |
316 | usage(); | |
10adbb52 | 317 | limit_rate = speed * 1024; |
6ea3c52a | 318 | break; |
94ec8c6b | 319 | case 'p': |
320 | pflag = 1; | |
5260325f | 321 | break; |
8efc0c15 | 322 | case 'r': |
323 | iamrecursive = 1; | |
324 | break; | |
2e73a022 | 325 | case 'S': |
94ec8c6b | 326 | ssh_program = xstrdup(optarg); |
327 | break; | |
328 | case 'v': | |
4fc334a2 | 329 | addargs(&args, "-v"); |
94ec8c6b | 330 | verbose_mode = 1; |
331 | break; | |
332 | case 'q': | |
15c8e3fd | 333 | addargs(&args, "-q"); |
94ec8c6b | 334 | showprogress = 0; |
2e73a022 | 335 | break; |
336 | ||
5260325f | 337 | /* Server options. */ |
8efc0c15 | 338 | case 'd': |
339 | targetshouldbedirectory = 1; | |
340 | break; | |
5260325f | 341 | case 'f': /* "from" */ |
8efc0c15 | 342 | iamremote = 1; |
343 | fflag = 1; | |
344 | break; | |
5260325f | 345 | case 't': /* "to" */ |
8efc0c15 | 346 | iamremote = 1; |
347 | tflag = 1; | |
fe56c12b | 348 | #ifdef HAVE_CYGWIN |
349 | setmode(0, O_BINARY); | |
350 | #endif | |
8efc0c15 | 351 | break; |
8efc0c15 | 352 | default: |
353 | usage(); | |
354 | } | |
355 | argc -= optind; | |
356 | argv += optind; | |
357 | ||
358 | if ((pwd = getpwuid(userid = getuid())) == NULL) | |
261bd618 | 359 | fatal("unknown user %u", (u_int) userid); |
8efc0c15 | 360 | |
5260325f | 361 | if (!isatty(STDERR_FILENO)) |
8efc0c15 | 362 | showprogress = 0; |
363 | ||
364 | remin = STDIN_FILENO; | |
365 | remout = STDOUT_FILENO; | |
366 | ||
2b87da3b | 367 | if (fflag) { |
5260325f | 368 | /* Follow "protocol", send data. */ |
369 | (void) response(); | |
8efc0c15 | 370 | source(argc, argv); |
371 | exit(errs != 0); | |
372 | } | |
5260325f | 373 | if (tflag) { |
374 | /* Receive data. */ | |
8efc0c15 | 375 | sink(argc, argv); |
376 | exit(errs != 0); | |
377 | } | |
8efc0c15 | 378 | if (argc < 2) |
379 | usage(); | |
380 | if (argc > 2) | |
381 | targetshouldbedirectory = 1; | |
382 | ||
383 | remin = remout = -1; | |
252d1a24 | 384 | do_cmd_pid = -1; |
8efc0c15 | 385 | /* Command to be executed on remote system using "ssh". */ |
0ed28836 | 386 | (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s", |
387 | verbose_mode ? " -v" : "", | |
2e73a022 | 388 | iamrecursive ? " -r" : "", pflag ? " -p" : "", |
389 | targetshouldbedirectory ? " -d" : ""); | |
8efc0c15 | 390 | |
5260325f | 391 | (void) signal(SIGPIPE, lostconn); |
8efc0c15 | 392 | |
393 | if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */ | |
394 | toremote(targ, argc, argv); | |
395 | else { | |
8efc0c15 | 396 | if (targetshouldbedirectory) |
397 | verifydir(argv[argc - 1]); | |
16e8ab10 | 398 | tolocal(argc, argv); /* Dest is local host. */ |
8efc0c15 | 399 | } |
252d1a24 | 400 | /* |
401 | * Finally check the exit status of the ssh process, if one was forked | |
402 | * and no error has occured yet | |
403 | */ | |
404 | if (do_cmd_pid != -1 && errs == 0) { | |
405 | if (remin != -1) | |
406 | (void) close(remin); | |
407 | if (remout != -1) | |
408 | (void) close(remout); | |
409 | if (waitpid(do_cmd_pid, &status, 0) == -1) | |
410 | errs = 1; | |
411 | else { | |
412 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
413 | errs = 1; | |
414 | } | |
415 | } | |
8efc0c15 | 416 | exit(errs != 0); |
417 | } | |
418 | ||
419 | void | |
cf3248b8 | 420 | toremote(char *targ, int argc, char **argv) |
8efc0c15 | 421 | { |
422 | int i, len; | |
99dfaccc | 423 | char *bp, *host, *src, *suser, *thost, *tuser, *arg; |
4116f5c0 | 424 | arglist alist; |
425 | ||
426 | memset(&alist, '\0', sizeof(alist)); | |
427 | alist.list = NULL; | |
8efc0c15 | 428 | |
429 | *targ++ = 0; | |
430 | if (*targ == 0) | |
431 | targ = "."; | |
432 | ||
ae0d2f42 | 433 | arg = xstrdup(argv[argc - 1]); |
99dfaccc | 434 | if ((thost = strrchr(arg, '@'))) { |
8efc0c15 | 435 | /* user@host */ |
436 | *thost++ = 0; | |
99dfaccc | 437 | tuser = arg; |
8efc0c15 | 438 | if (*tuser == '\0') |
439 | tuser = NULL; | |
8efc0c15 | 440 | } else { |
99dfaccc | 441 | thost = arg; |
8efc0c15 | 442 | tuser = NULL; |
443 | } | |
444 | ||
4116f5c0 | 445 | if (tuser != NULL && !okname(tuser)) { |
446 | xfree(arg); | |
447 | return; | |
448 | } | |
449 | ||
8efc0c15 | 450 | for (i = 0; i < argc - 1; i++) { |
451 | src = colon(argv[i]); | |
5260325f | 452 | if (src) { /* remote to remote */ |
4116f5c0 | 453 | freeargs(&alist); |
454 | addargs(&alist, "%s", ssh_program); | |
455 | if (verbose_mode) | |
456 | addargs(&alist, "-v"); | |
457 | addargs(&alist, "-x"); | |
458 | addargs(&alist, "-oClearAllForwardings yes"); | |
459 | addargs(&alist, "-n"); | |
460 | ||
8efc0c15 | 461 | *src++ = 0; |
462 | if (*src == 0) | |
463 | src = "."; | |
15748b4d | 464 | host = strrchr(argv[i], '@'); |
4116f5c0 | 465 | |
8efc0c15 | 466 | if (host) { |
467 | *host++ = 0; | |
48e671d5 | 468 | host = cleanhostname(host); |
8efc0c15 | 469 | suser = argv[i]; |
470 | if (*suser == '\0') | |
471 | suser = pwd->pw_name; | |
4116f5c0 | 472 | else if (!okname(suser)) |
0ec7661a | 473 | continue; |
4116f5c0 | 474 | addargs(&alist, "-l"); |
475 | addargs(&alist, "%s", suser); | |
48e671d5 | 476 | } else { |
477 | host = cleanhostname(argv[i]); | |
48e671d5 | 478 | } |
4116f5c0 | 479 | addargs(&alist, "%s", host); |
480 | addargs(&alist, "%s", cmd); | |
481 | addargs(&alist, "%s", src); | |
482 | addargs(&alist, "%s%s%s:%s", | |
483 | tuser ? tuser : "", tuser ? "@" : "", | |
484 | thost, targ); | |
485 | if (do_local_cmd(&alist) != 0) | |
815a8407 | 486 | errs = 1; |
5260325f | 487 | } else { /* local to remote */ |
8efc0c15 | 488 | if (remin == -1) { |
489 | len = strlen(targ) + CMDNEEDS + 20; | |
5260325f | 490 | bp = xmalloc(len); |
0ed28836 | 491 | (void) snprintf(bp, len, "%s -t %s", cmd, targ); |
48e671d5 | 492 | host = cleanhostname(thost); |
2e73a022 | 493 | if (do_cmd(host, tuser, bp, &remin, |
494 | &remout, argc) < 0) | |
5260325f | 495 | exit(1); |
8efc0c15 | 496 | if (response() < 0) |
497 | exit(1); | |
5260325f | 498 | (void) xfree(bp); |
8efc0c15 | 499 | } |
5260325f | 500 | source(1, argv + i); |
8efc0c15 | 501 | } |
502 | } | |
503 | } | |
504 | ||
505 | void | |
cf3248b8 | 506 | tolocal(int argc, char **argv) |
8efc0c15 | 507 | { |
508 | int i, len; | |
509 | char *bp, *host, *src, *suser; | |
4116f5c0 | 510 | arglist alist; |
511 | ||
512 | memset(&alist, '\0', sizeof(alist)); | |
513 | alist.list = NULL; | |
8efc0c15 | 514 | |
515 | for (i = 0; i < argc - 1; i++) { | |
5260325f | 516 | if (!(src = colon(argv[i]))) { /* Local to local. */ |
4116f5c0 | 517 | freeargs(&alist); |
518 | addargs(&alist, "%s", _PATH_CP); | |
519 | if (iamrecursive) | |
520 | addargs(&alist, "-r"); | |
521 | if (pflag) | |
522 | addargs(&alist, "-p"); | |
523 | addargs(&alist, "%s", argv[i]); | |
524 | addargs(&alist, "%s", argv[argc-1]); | |
525 | if (do_local_cmd(&alist)) | |
8efc0c15 | 526 | ++errs; |
8efc0c15 | 527 | continue; |
528 | } | |
529 | *src++ = 0; | |
530 | if (*src == 0) | |
531 | src = "."; | |
15748b4d | 532 | if ((host = strrchr(argv[i], '@')) == NULL) { |
8efc0c15 | 533 | host = argv[i]; |
534 | suser = NULL; | |
535 | } else { | |
536 | *host++ = 0; | |
537 | suser = argv[i]; | |
538 | if (*suser == '\0') | |
539 | suser = pwd->pw_name; | |
8efc0c15 | 540 | } |
48e671d5 | 541 | host = cleanhostname(host); |
8efc0c15 | 542 | len = strlen(src) + CMDNEEDS + 20; |
5260325f | 543 | bp = xmalloc(len); |
0ed28836 | 544 | (void) snprintf(bp, len, "%s -f %s", cmd, src); |
2e73a022 | 545 | if (do_cmd(host, suser, bp, &remin, &remout, argc) < 0) { |
5260325f | 546 | (void) xfree(bp); |
547 | ++errs; | |
548 | continue; | |
8efc0c15 | 549 | } |
5260325f | 550 | xfree(bp); |
8efc0c15 | 551 | sink(1, argv + argc - 1); |
5260325f | 552 | (void) close(remin); |
8efc0c15 | 553 | remin = remout = -1; |
554 | } | |
555 | } | |
556 | ||
557 | void | |
cf3248b8 | 558 | source(int argc, char **argv) |
8efc0c15 | 559 | { |
560 | struct stat stb; | |
561 | static BUF buffer; | |
562 | BUF *bp; | |
05624c18 | 563 | off_t i, amt, statbytes; |
564 | size_t result; | |
a056dfa2 | 565 | int fd = -1, haderr, indx; |
8efc0c15 | 566 | char *last, *name, buf[2048]; |
0fc791ba | 567 | int len; |
8efc0c15 | 568 | |
569 | for (indx = 0; indx < argc; ++indx) { | |
5260325f | 570 | name = argv[indx]; |
8efc0c15 | 571 | statbytes = 0; |
0fc791ba | 572 | len = strlen(name); |
573 | while (len > 1 && name[len-1] == '/') | |
574 | name[--len] = '\0'; | |
5720c10e | 575 | if (strchr(name, '\n') != NULL) { |
576 | run_err("%s: skipping, filename contains a newline", | |
577 | name); | |
578 | goto next; | |
579 | } | |
8efc0c15 | 580 | if ((fd = open(name, O_RDONLY, 0)) < 0) |
581 | goto syserr; | |
582 | if (fstat(fd, &stb) < 0) { | |
583 | syserr: run_err("%s: %s", name, strerror(errno)); | |
584 | goto next; | |
585 | } | |
586 | switch (stb.st_mode & S_IFMT) { | |
587 | case S_IFREG: | |
588 | break; | |
589 | case S_IFDIR: | |
590 | if (iamrecursive) { | |
591 | rsource(name, &stb); | |
592 | goto next; | |
593 | } | |
594 | /* FALLTHROUGH */ | |
595 | default: | |
596 | run_err("%s: not a regular file", name); | |
597 | goto next; | |
598 | } | |
599 | if ((last = strrchr(name, '/')) == NULL) | |
600 | last = name; | |
601 | else | |
602 | ++last; | |
603 | curfile = last; | |
604 | if (pflag) { | |
605 | /* | |
606 | * Make it compatible with possible future | |
607 | * versions expecting microseconds. | |
608 | */ | |
0ed28836 | 609 | (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n", |
1e3b8b07 | 610 | (u_long) stb.st_mtime, |
611 | (u_long) stb.st_atime); | |
dc54438a | 612 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
8efc0c15 | 613 | if (response() < 0) |
614 | goto next; | |
615 | } | |
616 | #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) | |
bf1d27bd | 617 | snprintf(buf, sizeof buf, "C%04o %lld %s\n", |
1e3b8b07 | 618 | (u_int) (stb.st_mode & FILEMODEMASK), |
419094c6 | 619 | (long long)stb.st_size, last); |
5260325f | 620 | if (verbose_mode) { |
621 | fprintf(stderr, "Sending file modes: %s", buf); | |
5260325f | 622 | } |
dc54438a | 623 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
8efc0c15 | 624 | if (response() < 0) |
625 | goto next; | |
626 | if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) { | |
29accf74 | 627 | next: if (fd != -1) { |
628 | (void) close(fd); | |
629 | fd = -1; | |
630 | } | |
8efc0c15 | 631 | continue; |
632 | } | |
b65c3807 | 633 | if (showprogress) |
634 | start_progress_meter(curfile, stb.st_size, &statbytes); | |
8efc0c15 | 635 | /* Keep writing after an error so that we stay sync'd up. */ |
636 | for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { | |
637 | amt = bp->cnt; | |
638 | if (i + amt > stb.st_size) | |
639 | amt = stb.st_size - i; | |
640 | if (!haderr) { | |
1d1ffb87 | 641 | result = atomicio(read, fd, bp->buf, amt); |
8efc0c15 | 642 | if (result != amt) |
05624c18 | 643 | haderr = errno; |
8efc0c15 | 644 | } |
645 | if (haderr) | |
dc54438a | 646 | (void) atomicio(vwrite, remout, bp->buf, amt); |
8efc0c15 | 647 | else { |
dc54438a | 648 | result = atomicio(vwrite, remout, bp->buf, amt); |
8efc0c15 | 649 | if (result != amt) |
05624c18 | 650 | haderr = errno; |
8efc0c15 | 651 | statbytes += result; |
652 | } | |
10adbb52 | 653 | if (limit_rate) |
6ea3c52a | 654 | bwlimit(amt); |
8efc0c15 | 655 | } |
5260325f | 656 | if (showprogress) |
b65c3807 | 657 | stop_progress_meter(); |
8efc0c15 | 658 | |
29accf74 | 659 | if (fd != -1) { |
660 | if (close(fd) < 0 && !haderr) | |
661 | haderr = errno; | |
662 | fd = -1; | |
663 | } | |
8efc0c15 | 664 | if (!haderr) |
dc54438a | 665 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 666 | else |
667 | run_err("%s: %s", name, strerror(haderr)); | |
5260325f | 668 | (void) response(); |
8efc0c15 | 669 | } |
670 | } | |
671 | ||
672 | void | |
cf3248b8 | 673 | rsource(char *name, struct stat *statp) |
8efc0c15 | 674 | { |
675 | DIR *dirp; | |
676 | struct dirent *dp; | |
677 | char *last, *vect[1], path[1100]; | |
678 | ||
679 | if (!(dirp = opendir(name))) { | |
680 | run_err("%s: %s", name, strerror(errno)); | |
681 | return; | |
682 | } | |
683 | last = strrchr(name, '/'); | |
684 | if (last == 0) | |
685 | last = name; | |
686 | else | |
687 | last++; | |
688 | if (pflag) { | |
0ed28836 | 689 | (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n", |
1e3b8b07 | 690 | (u_long) statp->st_mtime, |
691 | (u_long) statp->st_atime); | |
dc54438a | 692 | (void) atomicio(vwrite, remout, path, strlen(path)); |
8efc0c15 | 693 | if (response() < 0) { |
694 | closedir(dirp); | |
695 | return; | |
696 | } | |
697 | } | |
0ed28836 | 698 | (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n", |
1e3b8b07 | 699 | (u_int) (statp->st_mode & FILEMODEMASK), 0, last); |
5260325f | 700 | if (verbose_mode) |
701 | fprintf(stderr, "Entering directory: %s", path); | |
dc54438a | 702 | (void) atomicio(vwrite, remout, path, strlen(path)); |
8efc0c15 | 703 | if (response() < 0) { |
704 | closedir(dirp); | |
705 | return; | |
706 | } | |
e5ff6ecf | 707 | while ((dp = readdir(dirp)) != NULL) { |
8efc0c15 | 708 | if (dp->d_ino == 0) |
709 | continue; | |
710 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) | |
711 | continue; | |
712 | if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) { | |
713 | run_err("%s/%s: name too long", name, dp->d_name); | |
714 | continue; | |
715 | } | |
0ed28836 | 716 | (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name); |
8efc0c15 | 717 | vect[0] = path; |
718 | source(1, vect); | |
719 | } | |
5260325f | 720 | (void) closedir(dirp); |
dc54438a | 721 | (void) atomicio(vwrite, remout, "E\n", 2); |
5260325f | 722 | (void) response(); |
8efc0c15 | 723 | } |
724 | ||
6ea3c52a | 725 | void |
726 | bwlimit(int amount) | |
727 | { | |
728 | static struct timeval bwstart, bwend; | |
729 | static int lamt, thresh = 16384; | |
ca75d7de | 730 | u_int64_t waitlen; |
6ea3c52a | 731 | struct timespec ts, rm; |
732 | ||
733 | if (!timerisset(&bwstart)) { | |
734 | gettimeofday(&bwstart, NULL); | |
735 | return; | |
736 | } | |
737 | ||
738 | lamt += amount; | |
739 | if (lamt < thresh) | |
740 | return; | |
741 | ||
742 | gettimeofday(&bwend, NULL); | |
743 | timersub(&bwend, &bwstart, &bwend); | |
744 | if (!timerisset(&bwend)) | |
745 | return; | |
746 | ||
747 | lamt *= 8; | |
ca75d7de | 748 | waitlen = (double)1000000L * lamt / limit_rate; |
6ea3c52a | 749 | |
ca75d7de | 750 | bwstart.tv_sec = waitlen / 1000000L; |
751 | bwstart.tv_usec = waitlen % 1000000L; | |
6ea3c52a | 752 | |
753 | if (timercmp(&bwstart, &bwend, >)) { | |
754 | timersub(&bwstart, &bwend, &bwend); | |
755 | ||
756 | /* Adjust the wait time */ | |
757 | if (bwend.tv_sec) { | |
758 | thresh /= 2; | |
759 | if (thresh < 2048) | |
760 | thresh = 2048; | |
761 | } else if (bwend.tv_usec < 100) { | |
762 | thresh *= 2; | |
763 | if (thresh > 32768) | |
764 | thresh = 32768; | |
765 | } | |
766 | ||
767 | TIMEVAL_TO_TIMESPEC(&bwend, &ts); | |
768 | while (nanosleep(&ts, &rm) == -1) { | |
769 | if (errno != EINTR) | |
770 | break; | |
771 | ts = rm; | |
772 | } | |
773 | } | |
774 | ||
775 | lamt = 0; | |
776 | gettimeofday(&bwstart, NULL); | |
777 | } | |
778 | ||
8efc0c15 | 779 | void |
cf3248b8 | 780 | sink(int argc, char **argv) |
8efc0c15 | 781 | { |
782 | static BUF buffer; | |
783 | struct stat stb; | |
5260325f | 784 | enum { |
785 | YES, NO, DISPLAYED | |
786 | } wrerr; | |
8efc0c15 | 787 | BUF *bp; |
05624c18 | 788 | off_t i; |
2ceb8101 | 789 | size_t j, count; |
790 | int amt, exists, first, mask, mode, ofd, omode; | |
b65c3807 | 791 | off_t size, statbytes; |
14a9a859 | 792 | int setimes, targisdir, wrerrno = 0; |
8efc0c15 | 793 | char ch, *cp, *np, *targ, *why, *vect[1], buf[2048]; |
188adeb2 | 794 | struct timeval tv[2]; |
8efc0c15 | 795 | |
36967a16 | 796 | #define atime tv[0] |
797 | #define mtime tv[1] | |
007607ab | 798 | #define SCREWUP(str) { why = str; goto screwup; } |
8efc0c15 | 799 | |
800 | setimes = targisdir = 0; | |
801 | mask = umask(0); | |
802 | if (!pflag) | |
5260325f | 803 | (void) umask(mask); |
8efc0c15 | 804 | if (argc != 1) { |
805 | run_err("ambiguous target"); | |
806 | exit(1); | |
807 | } | |
808 | targ = *argv; | |
809 | if (targetshouldbedirectory) | |
810 | verifydir(targ); | |
5260325f | 811 | |
dc54438a | 812 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 813 | if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) |
814 | targisdir = 1; | |
815 | for (first = 1;; first = 0) { | |
816 | cp = buf; | |
05624c18 | 817 | if (atomicio(read, remin, cp, 1) != 1) |
8efc0c15 | 818 | return; |
819 | if (*cp++ == '\n') | |
820 | SCREWUP("unexpected <newline>"); | |
821 | do { | |
1d1ffb87 | 822 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 823 | SCREWUP("lost connection"); |
824 | *cp++ = ch; | |
825 | } while (cp < &buf[sizeof(buf) - 1] && ch != '\n'); | |
826 | *cp = 0; | |
f09aa22c | 827 | if (verbose_mode) |
828 | fprintf(stderr, "Sink: %s", buf); | |
8efc0c15 | 829 | |
830 | if (buf[0] == '\01' || buf[0] == '\02') { | |
831 | if (iamremote == 0) | |
dc54438a | 832 | (void) atomicio(vwrite, STDERR_FILENO, |
71c0d06a | 833 | buf + 1, strlen(buf + 1)); |
8efc0c15 | 834 | if (buf[0] == '\02') |
835 | exit(1); | |
836 | ++errs; | |
837 | continue; | |
838 | } | |
839 | if (buf[0] == 'E') { | |
dc54438a | 840 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 841 | return; |
842 | } | |
8efc0c15 | 843 | if (ch == '\n') |
844 | *--cp = 0; | |
845 | ||
8efc0c15 | 846 | cp = buf; |
847 | if (*cp == 'T') { | |
848 | setimes++; | |
849 | cp++; | |
36967a16 | 850 | mtime.tv_sec = strtol(cp, &cp, 10); |
851 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 852 | SCREWUP("mtime.sec not delimited"); |
36967a16 | 853 | mtime.tv_usec = strtol(cp, &cp, 10); |
854 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 855 | SCREWUP("mtime.usec not delimited"); |
36967a16 | 856 | atime.tv_sec = strtol(cp, &cp, 10); |
857 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 858 | SCREWUP("atime.sec not delimited"); |
36967a16 | 859 | atime.tv_usec = strtol(cp, &cp, 10); |
860 | if (!cp || *cp++ != '\0') | |
8efc0c15 | 861 | SCREWUP("atime.usec not delimited"); |
dc54438a | 862 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 863 | continue; |
864 | } | |
865 | if (*cp != 'C' && *cp != 'D') { | |
866 | /* | |
867 | * Check for the case "rcp remote:foo\* local:bar". | |
868 | * In this case, the line "No match." can be returned | |
869 | * by the shell before the rcp command on the remote is | |
870 | * executed so the ^Aerror_message convention isn't | |
871 | * followed. | |
872 | */ | |
873 | if (first) { | |
874 | run_err("%s", cp); | |
875 | exit(1); | |
876 | } | |
877 | SCREWUP("expected control record"); | |
878 | } | |
879 | mode = 0; | |
880 | for (++cp; cp < buf + 5; cp++) { | |
881 | if (*cp < '0' || *cp > '7') | |
882 | SCREWUP("bad mode"); | |
883 | mode = (mode << 3) | (*cp - '0'); | |
884 | } | |
885 | if (*cp++ != ' ') | |
886 | SCREWUP("mode not delimited"); | |
887 | ||
e5ff6ecf | 888 | for (size = 0; isdigit(*cp);) |
8efc0c15 | 889 | size = size * 10 + (*cp++ - '0'); |
890 | if (*cp++ != ' ') | |
891 | SCREWUP("size not delimited"); | |
f09aa22c | 892 | if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) { |
893 | run_err("error: unexpected filename: %s", cp); | |
894 | exit(1); | |
895 | } | |
8efc0c15 | 896 | if (targisdir) { |
897 | static char *namebuf; | |
2ceb8101 | 898 | static size_t cursize; |
8efc0c15 | 899 | size_t need; |
900 | ||
901 | need = strlen(targ) + strlen(cp) + 250; | |
0ed28836 | 902 | if (need > cursize) { |
903 | if (namebuf) | |
904 | xfree(namebuf); | |
5260325f | 905 | namebuf = xmalloc(need); |
0ed28836 | 906 | cursize = need; |
907 | } | |
908 | (void) snprintf(namebuf, need, "%s%s%s", targ, | |
39f9599a | 909 | strcmp(targ, "/") ? "/" : "", cp); |
8efc0c15 | 910 | np = namebuf; |
911 | } else | |
912 | np = targ; | |
913 | curfile = cp; | |
914 | exists = stat(np, &stb) == 0; | |
915 | if (buf[0] == 'D') { | |
916 | int mod_flag = pflag; | |
f09aa22c | 917 | if (!iamrecursive) |
918 | SCREWUP("received directory without -r"); | |
8efc0c15 | 919 | if (exists) { |
920 | if (!S_ISDIR(stb.st_mode)) { | |
921 | errno = ENOTDIR; | |
922 | goto bad; | |
923 | } | |
924 | if (pflag) | |
5260325f | 925 | (void) chmod(np, mode); |
8efc0c15 | 926 | } else { |
5260325f | 927 | /* Handle copying from a read-only |
928 | directory */ | |
8efc0c15 | 929 | mod_flag = 1; |
930 | if (mkdir(np, mode | S_IRWXU) < 0) | |
931 | goto bad; | |
932 | } | |
5c470997 | 933 | vect[0] = xstrdup(np); |
8efc0c15 | 934 | sink(1, vect); |
935 | if (setimes) { | |
936 | setimes = 0; | |
e68225b2 | 937 | if (utimes(vect[0], tv) < 0) |
5260325f | 938 | run_err("%s: set times: %s", |
e68225b2 | 939 | vect[0], strerror(errno)); |
8efc0c15 | 940 | } |
941 | if (mod_flag) | |
e68225b2 | 942 | (void) chmod(vect[0], mode); |
943 | if (vect[0]) | |
944 | xfree(vect[0]); | |
8efc0c15 | 945 | continue; |
946 | } | |
947 | omode = mode; | |
948 | mode |= S_IWRITE; | |
3e4fc5f9 | 949 | if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { |
8efc0c15 | 950 | bad: run_err("%s: %s", np, strerror(errno)); |
951 | continue; | |
952 | } | |
dc54438a | 953 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 954 | if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) { |
5260325f | 955 | (void) close(ofd); |
8efc0c15 | 956 | continue; |
957 | } | |
958 | cp = bp->buf; | |
959 | wrerr = NO; | |
960 | ||
8efc0c15 | 961 | statbytes = 0; |
b65c3807 | 962 | if (showprogress) |
963 | start_progress_meter(curfile, size, &statbytes); | |
8efc0c15 | 964 | for (count = i = 0; i < size; i += 4096) { |
965 | amt = 4096; | |
966 | if (i + amt > size) | |
967 | amt = size - i; | |
968 | count += amt; | |
969 | do { | |
f581b6e8 | 970 | j = atomicio(read, remin, cp, amt); |
05624c18 | 971 | if (j == 0) { |
8efc0c15 | 972 | run_err("%s", j ? strerror(errno) : |
e5ff6ecf | 973 | "dropped connection"); |
8efc0c15 | 974 | exit(1); |
975 | } | |
976 | amt -= j; | |
977 | cp += j; | |
5260325f | 978 | statbytes += j; |
8efc0c15 | 979 | } while (amt > 0); |
b6453d99 | 980 | |
10adbb52 | 981 | if (limit_rate) |
6ea3c52a | 982 | bwlimit(4096); |
983 | ||
8efc0c15 | 984 | if (count == bp->cnt) { |
985 | /* Keep reading so we stay sync'd up. */ | |
986 | if (wrerr == NO) { | |
05624c18 | 987 | if (atomicio(vwrite, ofd, bp->buf, |
988 | count) != count) { | |
8efc0c15 | 989 | wrerr = YES; |
05624c18 | 990 | wrerrno = errno; |
8efc0c15 | 991 | } |
992 | } | |
993 | count = 0; | |
994 | cp = bp->buf; | |
995 | } | |
996 | } | |
997 | if (showprogress) | |
b65c3807 | 998 | stop_progress_meter(); |
8efc0c15 | 999 | if (count != 0 && wrerr == NO && |
05624c18 | 1000 | atomicio(vwrite, ofd, bp->buf, count) != count) { |
8efc0c15 | 1001 | wrerr = YES; |
05624c18 | 1002 | wrerrno = errno; |
8efc0c15 | 1003 | } |
25a6efd8 | 1004 | if (wrerr == NO && ftruncate(ofd, size) != 0) { |
8efc0c15 | 1005 | run_err("%s: truncate: %s", np, strerror(errno)); |
1006 | wrerr = DISPLAYED; | |
1007 | } | |
8efc0c15 | 1008 | if (pflag) { |
1009 | if (exists || omode != mode) | |
77bb0bca | 1010 | #ifdef HAVE_FCHMOD |
7e693c81 | 1011 | if (fchmod(ofd, omode)) { |
77bb0bca | 1012 | #else /* HAVE_FCHMOD */ |
7e693c81 | 1013 | if (chmod(np, omode)) { |
77bb0bca | 1014 | #endif /* HAVE_FCHMOD */ |
8efc0c15 | 1015 | run_err("%s: set mode: %s", |
e5ff6ecf | 1016 | np, strerror(errno)); |
7e693c81 | 1017 | wrerr = DISPLAYED; |
1018 | } | |
8efc0c15 | 1019 | } else { |
1020 | if (!exists && omode != mode) | |
77bb0bca | 1021 | #ifdef HAVE_FCHMOD |
7e693c81 | 1022 | if (fchmod(ofd, omode & ~mask)) { |
77bb0bca | 1023 | #else /* HAVE_FCHMOD */ |
7e693c81 | 1024 | if (chmod(np, omode & ~mask)) { |
77bb0bca | 1025 | #endif /* HAVE_FCHMOD */ |
8efc0c15 | 1026 | run_err("%s: set mode: %s", |
e5ff6ecf | 1027 | np, strerror(errno)); |
7e693c81 | 1028 | wrerr = DISPLAYED; |
1029 | } | |
8efc0c15 | 1030 | } |
704b1659 | 1031 | if (close(ofd) == -1) { |
1032 | wrerr = YES; | |
1033 | wrerrno = errno; | |
1034 | } | |
5260325f | 1035 | (void) response(); |
8efc0c15 | 1036 | if (setimes && wrerr == NO) { |
1037 | setimes = 0; | |
188adeb2 | 1038 | if (utimes(np, tv) < 0) { |
8efc0c15 | 1039 | run_err("%s: set times: %s", |
e5ff6ecf | 1040 | np, strerror(errno)); |
8efc0c15 | 1041 | wrerr = DISPLAYED; |
1042 | } | |
1043 | } | |
5260325f | 1044 | switch (wrerr) { |
8efc0c15 | 1045 | case YES: |
1046 | run_err("%s: %s", np, strerror(wrerrno)); | |
1047 | break; | |
1048 | case NO: | |
dc54438a | 1049 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 1050 | break; |
1051 | case DISPLAYED: | |
1052 | break; | |
1053 | } | |
1054 | } | |
1055 | screwup: | |
1056 | run_err("protocol error: %s", why); | |
1057 | exit(1); | |
1058 | } | |
1059 | ||
1060 | int | |
d5bb9418 | 1061 | response(void) |
8efc0c15 | 1062 | { |
1063 | char ch, *cp, resp, rbuf[2048]; | |
1064 | ||
1d1ffb87 | 1065 | if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp)) |
8efc0c15 | 1066 | lostconn(0); |
1067 | ||
1068 | cp = rbuf; | |
5260325f | 1069 | switch (resp) { |
1070 | case 0: /* ok */ | |
8efc0c15 | 1071 | return (0); |
1072 | default: | |
1073 | *cp++ = resp; | |
1074 | /* FALLTHROUGH */ | |
5260325f | 1075 | case 1: /* error, followed by error msg */ |
1076 | case 2: /* fatal error, "" */ | |
8efc0c15 | 1077 | do { |
1d1ffb87 | 1078 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 1079 | lostconn(0); |
1080 | *cp++ = ch; | |
1081 | } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n'); | |
1082 | ||
1083 | if (!iamremote) | |
dc54438a | 1084 | (void) atomicio(vwrite, STDERR_FILENO, rbuf, cp - rbuf); |
8efc0c15 | 1085 | ++errs; |
1086 | if (resp == 1) | |
1087 | return (-1); | |
1088 | exit(1); | |
1089 | } | |
1090 | /* NOTREACHED */ | |
1091 | } | |
1092 | ||
1093 | void | |
d5bb9418 | 1094 | usage(void) |
8efc0c15 | 1095 | { |
f1278af7 | 1096 | (void) fprintf(stderr, |
433e60ac | 1097 | "usage: scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]\n" |
1098 | " [-l limit] [-o ssh_option] [-P port] [-S program]\n" | |
3015d321 | 1099 | " [[user@]host1:]file1 [...] [[user@]host2:]file2\n"); |
8efc0c15 | 1100 | exit(1); |
1101 | } | |
1102 | ||
1103 | void | |
5260325f | 1104 | run_err(const char *fmt,...) |
8efc0c15 | 1105 | { |
1106 | static FILE *fp; | |
1107 | va_list ap; | |
8efc0c15 | 1108 | |
1109 | ++errs; | |
d6157b67 | 1110 | if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) { |
1111 | (void) fprintf(fp, "%c", 0x01); | |
1112 | (void) fprintf(fp, "scp: "); | |
1113 | va_start(ap, fmt); | |
1114 | (void) vfprintf(fp, fmt, ap); | |
1115 | va_end(ap); | |
1116 | (void) fprintf(fp, "\n"); | |
1117 | (void) fflush(fp); | |
1118 | } | |
5260325f | 1119 | |
1120 | if (!iamremote) { | |
b92964b7 | 1121 | va_start(ap, fmt); |
5260325f | 1122 | vfprintf(stderr, fmt, ap); |
b92964b7 | 1123 | va_end(ap); |
5260325f | 1124 | fprintf(stderr, "\n"); |
1125 | } | |
8efc0c15 | 1126 | } |
1127 | ||
8efc0c15 | 1128 | void |
cf3248b8 | 1129 | verifydir(char *cp) |
8efc0c15 | 1130 | { |
1131 | struct stat stb; | |
1132 | ||
1133 | if (!stat(cp, &stb)) { | |
1134 | if (S_ISDIR(stb.st_mode)) | |
1135 | return; | |
1136 | errno = ENOTDIR; | |
1137 | } | |
1138 | run_err("%s: %s", cp, strerror(errno)); | |
8f4ab41b | 1139 | killchild(0); |
8efc0c15 | 1140 | } |
1141 | ||
1142 | int | |
cf3248b8 | 1143 | okname(char *cp0) |
8efc0c15 | 1144 | { |
1145 | int c; | |
1146 | char *cp; | |
1147 | ||
1148 | cp = cp0; | |
1149 | do { | |
cb220a93 | 1150 | c = (int)*cp; |
8efc0c15 | 1151 | if (c & 0200) |
1152 | goto bad; | |
0ec7661a | 1153 | if (!isalpha(c) && !isdigit(c)) { |
1154 | switch (c) { | |
1155 | case '\'': | |
1156 | case '"': | |
1157 | case '`': | |
1158 | case ' ': | |
1159 | case '#': | |
1160 | goto bad; | |
1161 | default: | |
1162 | break; | |
1163 | } | |
1164 | } | |
8efc0c15 | 1165 | } while (*++cp); |
1166 | return (1); | |
1167 | ||
c8d54615 | 1168 | bad: fprintf(stderr, "%s: invalid user name\n", cp0); |
8efc0c15 | 1169 | return (0); |
1170 | } | |
1171 | ||
1172 | BUF * | |
cf3248b8 | 1173 | allocbuf(BUF *bp, int fd, int blksize) |
8efc0c15 | 1174 | { |
1175 | size_t size; | |
98a7c37b | 1176 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE |
8efc0c15 | 1177 | struct stat stb; |
1178 | ||
1179 | if (fstat(fd, &stb) < 0) { | |
1180 | run_err("fstat: %s", strerror(errno)); | |
1181 | return (0); | |
1182 | } | |
a0a14bcd | 1183 | size = roundup(stb.st_blksize, blksize); |
1184 | if (size == 0) | |
5260325f | 1185 | size = blksize; |
98a7c37b | 1186 | #else /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
2b87da3b | 1187 | size = blksize; |
98a7c37b | 1188 | #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
8efc0c15 | 1189 | if (bp->cnt >= size) |
1190 | return (bp); | |
5260325f | 1191 | if (bp->buf == NULL) |
1192 | bp->buf = xmalloc(size); | |
1193 | else | |
c5d10563 | 1194 | bp->buf = xrealloc(bp->buf, 1, size); |
46660a9e | 1195 | memset(bp->buf, 0, size); |
8efc0c15 | 1196 | bp->cnt = size; |
1197 | return (bp); | |
1198 | } | |
1199 | ||
1200 | void | |
cf3248b8 | 1201 | lostconn(int signo) |
8efc0c15 | 1202 | { |
1203 | if (!iamremote) | |
08c260ea | 1204 | write(STDERR_FILENO, "lost connection\n", 16); |
1205 | if (signo) | |
1206 | _exit(1); | |
1207 | else | |
1208 | exit(1); | |
8efc0c15 | 1209 | } |