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25d429a2 | 1 | /* $OpenBSD: scp.c,v 1.160 2007/08/06 19:16:06 sobrado 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 | |
81 | #ifdef HAVE_SYS_TIME_H | |
82 | # include <sys/time.h> | |
83 | #endif | |
84 | #include <sys/wait.h> | |
85 | #include <sys/uio.h> | |
86 | ||
87 | #include <ctype.h> | |
88 | #include <dirent.h> | |
89 | #include <errno.h> | |
90 | #include <fcntl.h> | |
91 | #include <pwd.h> | |
92 | #include <signal.h> | |
93 | #include <stdarg.h> | |
94 | #include <stdio.h> | |
95 | #include <stdlib.h> | |
96 | #include <string.h> | |
97 | #include <time.h> | |
98 | #include <unistd.h> | |
25d429a2 | 99 | #if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H) |
100 | #include <vis.h> | |
101 | #endif | |
3c0ef626 | 102 | |
103 | #include "xmalloc.h" | |
104 | #include "atomicio.h" | |
105 | #include "pathnames.h" | |
106 | #include "log.h" | |
107 | #include "misc.h" | |
1c14df9e | 108 | #include "progressmeter.h" |
3c0ef626 | 109 | |
3c0ef626 | 110 | extern char *__progname; |
3c0ef626 | 111 | |
2e437378 | 112 | int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout); |
113 | ||
1c14df9e | 114 | void bwlimit(int); |
3c0ef626 | 115 | |
116 | /* Struct for addargs */ | |
117 | arglist args; | |
118 | ||
1c14df9e | 119 | /* Bandwidth limit */ |
416fd2a8 | 120 | off_t limit_rate = 0; |
3c0ef626 | 121 | |
122 | /* Name of current file being transferred. */ | |
123 | char *curfile; | |
124 | ||
125 | /* This is set to non-zero to enable verbose mode. */ | |
126 | int verbose_mode = 0; | |
127 | ||
128 | /* This is set to zero if the progressmeter is not desired. */ | |
129 | int showprogress = 1; | |
130 | ||
131 | /* This is the program to execute for the secured connection. ("ssh" or -S) */ | |
ae43c103 | 132 | char *ssh_program; |
3c0ef626 | 133 | |
1c14df9e | 134 | /* This is used to store the pid of ssh_program */ |
70791e56 | 135 | pid_t do_cmd_pid = -1; |
136 | ||
137 | static void | |
138 | killchild(int signo) | |
139 | { | |
34fee935 | 140 | if (do_cmd_pid > 1) { |
141 | kill(do_cmd_pid, signo ? signo : SIGTERM); | |
142 | waitpid(do_cmd_pid, NULL, 0); | |
143 | } | |
70791e56 | 144 | |
34fee935 | 145 | if (signo) |
146 | _exit(1); | |
147 | exit(1); | |
70791e56 | 148 | } |
1c14df9e | 149 | |
e00da40d | 150 | static int |
151 | do_local_cmd(arglist *a) | |
152 | { | |
153 | u_int i; | |
154 | int status; | |
155 | pid_t pid; | |
156 | ||
157 | if (a->num == 0) | |
158 | fatal("do_local_cmd: no arguments"); | |
159 | ||
160 | if (verbose_mode) { | |
161 | fprintf(stderr, "Executing:"); | |
162 | for (i = 0; i < a->num; i++) | |
163 | fprintf(stderr, " %s", a->list[i]); | |
164 | fprintf(stderr, "\n"); | |
165 | } | |
166 | if ((pid = fork()) == -1) | |
167 | fatal("do_local_cmd: fork: %s", strerror(errno)); | |
168 | ||
169 | if (pid == 0) { | |
170 | execvp(a->list[0], a->list); | |
171 | perror(a->list[0]); | |
172 | exit(1); | |
173 | } | |
174 | ||
175 | do_cmd_pid = pid; | |
176 | signal(SIGTERM, killchild); | |
177 | signal(SIGINT, killchild); | |
178 | signal(SIGHUP, killchild); | |
179 | ||
180 | while (waitpid(pid, &status, 0) == -1) | |
181 | if (errno != EINTR) | |
182 | fatal("do_local_cmd: waitpid: %s", strerror(errno)); | |
183 | ||
184 | do_cmd_pid = -1; | |
185 | ||
186 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
187 | return (-1); | |
188 | ||
189 | return (0); | |
190 | } | |
191 | ||
3c0ef626 | 192 | /* |
193 | * This function executes the given command as the specified user on the | |
194 | * given host. This returns < 0 if execution fails, and >= 0 otherwise. This | |
195 | * assigns the input and output file descriptors on success. | |
196 | */ | |
197 | ||
198 | int | |
2e437378 | 199 | do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout) |
3c0ef626 | 200 | { |
201 | int pin[2], pout[2], reserved[2]; | |
202 | ||
203 | if (verbose_mode) | |
204 | fprintf(stderr, | |
205 | "Executing: program %s host %s, user %s, command %s\n", | |
206 | ssh_program, host, | |
207 | remuser ? remuser : "(unspecified)", cmd); | |
208 | ||
209 | /* | |
210 | * Reserve two descriptors so that the real pipes won't get | |
211 | * descriptors 0 and 1 because that will screw up dup2 below. | |
212 | */ | |
2e437378 | 213 | if (pipe(reserved) < 0) |
214 | fatal("pipe: %s", strerror(errno)); | |
3c0ef626 | 215 | |
216 | /* Create a socket pair for communicating with ssh. */ | |
217 | if (pipe(pin) < 0) | |
218 | fatal("pipe: %s", strerror(errno)); | |
219 | if (pipe(pout) < 0) | |
220 | fatal("pipe: %s", strerror(errno)); | |
221 | ||
222 | /* Free the reserved descriptors. */ | |
223 | close(reserved[0]); | |
224 | close(reserved[1]); | |
225 | ||
70791e56 | 226 | /* Fork a child to execute the command on the remote host using ssh. */ |
1c14df9e | 227 | do_cmd_pid = fork(); |
228 | if (do_cmd_pid == 0) { | |
3c0ef626 | 229 | /* Child. */ |
230 | close(pin[1]); | |
231 | close(pout[0]); | |
232 | dup2(pin[0], 0); | |
233 | dup2(pout[1], 1); | |
234 | close(pin[0]); | |
235 | close(pout[1]); | |
236 | ||
e00da40d | 237 | replacearg(&args, 0, "%s", ssh_program); |
3c0ef626 | 238 | if (remuser != NULL) |
239 | addargs(&args, "-l%s", remuser); | |
240 | addargs(&args, "%s", host); | |
241 | addargs(&args, "%s", cmd); | |
242 | ||
243 | execvp(ssh_program, args.list); | |
244 | perror(ssh_program); | |
245 | exit(1); | |
1c14df9e | 246 | } else if (do_cmd_pid == -1) { |
247 | fatal("fork: %s", strerror(errno)); | |
3c0ef626 | 248 | } |
249 | /* Parent. Close the other side, and return the local side. */ | |
250 | close(pin[0]); | |
251 | *fdout = pin[1]; | |
252 | close(pout[1]); | |
253 | *fdin = pout[0]; | |
70791e56 | 254 | signal(SIGTERM, killchild); |
255 | signal(SIGINT, killchild); | |
256 | signal(SIGHUP, killchild); | |
3c0ef626 | 257 | return 0; |
258 | } | |
259 | ||
260 | typedef struct { | |
34fee935 | 261 | size_t cnt; |
3c0ef626 | 262 | char *buf; |
263 | } BUF; | |
264 | ||
265 | BUF *allocbuf(BUF *, int, int); | |
266 | void lostconn(int); | |
3c0ef626 | 267 | int okname(char *); |
268 | void run_err(const char *,...); | |
269 | void verifydir(char *); | |
270 | ||
271 | struct passwd *pwd; | |
272 | uid_t userid; | |
273 | int errs, remin, remout; | |
274 | int pflag, iamremote, iamrecursive, targetshouldbedirectory; | |
275 | ||
276 | #define CMDNEEDS 64 | |
277 | char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */ | |
278 | ||
279 | int response(void); | |
280 | void rsource(char *, struct stat *); | |
281 | void sink(int, char *[]); | |
282 | void source(int, char *[]); | |
283 | void tolocal(int, char *[]); | |
284 | void toremote(char *, int, char *[]); | |
285 | void usage(void); | |
286 | ||
287 | int | |
70791e56 | 288 | main(int argc, char **argv) |
3c0ef626 | 289 | { |
2e437378 | 290 | int ch, fflag, tflag, status, n; |
1c14df9e | 291 | double speed; |
2e437378 | 292 | char *targ, *endp, **newargv; |
3c0ef626 | 293 | extern char *optarg; |
294 | extern int optind; | |
295 | ||
e00da40d | 296 | /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
297 | sanitise_stdfd(); | |
298 | ||
2e437378 | 299 | /* Copy argv, because we modify it */ |
300 | newargv = xcalloc(MAX(argc + 1, 1), sizeof(*newargv)); | |
301 | for (n = 0; n < argc; n++) | |
302 | newargv[n] = xstrdup(argv[n]); | |
303 | argv = newargv; | |
304 | ||
70791e56 | 305 | __progname = ssh_get_progname(argv[0]); |
ae43c103 | 306 | init_pathnames(); |
675a64e2 | 307 | ssh_program = _PATH_SSH_PROGRAM; |
3c0ef626 | 308 | |
e00da40d | 309 | memset(&args, '\0', sizeof(args)); |
3c0ef626 | 310 | args.list = NULL; |
e00da40d | 311 | addargs(&args, "%s", ssh_program); |
3c0ef626 | 312 | addargs(&args, "-x"); |
313 | addargs(&args, "-oForwardAgent no"); | |
e00da40d | 314 | addargs(&args, "-oPermitLocalCommand no"); |
3c0ef626 | 315 | addargs(&args, "-oClearAllForwardings yes"); |
316 | ||
317 | fflag = tflag = 0; | |
2e437378 | 318 | while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q1246S:o:F:")) != -1) |
3c0ef626 | 319 | switch (ch) { |
320 | /* User-visible flags. */ | |
1c14df9e | 321 | case '1': |
322 | case '2': | |
3c0ef626 | 323 | case '4': |
324 | case '6': | |
325 | case 'C': | |
2e437378 | 326 | addargs(&args, "-%c", ch); |
327 | break; | |
3c0ef626 | 328 | case 'o': |
329 | case 'c': | |
330 | case 'i': | |
331 | case 'F': | |
332 | addargs(&args, "-%c%s", ch, optarg); | |
333 | break; | |
334 | case 'P': | |
335 | addargs(&args, "-p%s", optarg); | |
336 | break; | |
337 | case 'B': | |
338 | addargs(&args, "-oBatchmode yes"); | |
339 | break; | |
1c14df9e | 340 | case 'l': |
341 | speed = strtod(optarg, &endp); | |
342 | if (speed <= 0 || *endp != '\0') | |
343 | usage(); | |
416fd2a8 | 344 | limit_rate = speed * 1024; |
1c14df9e | 345 | break; |
3c0ef626 | 346 | case 'p': |
347 | pflag = 1; | |
348 | break; | |
349 | case 'r': | |
350 | iamrecursive = 1; | |
351 | break; | |
352 | case 'S': | |
353 | ssh_program = xstrdup(optarg); | |
354 | break; | |
355 | case 'v': | |
356 | addargs(&args, "-v"); | |
357 | verbose_mode = 1; | |
358 | break; | |
359 | case 'q': | |
416fd2a8 | 360 | addargs(&args, "-q"); |
3c0ef626 | 361 | showprogress = 0; |
362 | break; | |
363 | ||
364 | /* Server options. */ | |
365 | case 'd': | |
366 | targetshouldbedirectory = 1; | |
367 | break; | |
368 | case 'f': /* "from" */ | |
369 | iamremote = 1; | |
370 | fflag = 1; | |
371 | break; | |
372 | case 't': /* "to" */ | |
373 | iamremote = 1; | |
374 | tflag = 1; | |
375 | #ifdef HAVE_CYGWIN | |
376 | setmode(0, O_BINARY); | |
377 | #endif | |
378 | break; | |
379 | default: | |
380 | usage(); | |
381 | } | |
382 | argc -= optind; | |
383 | argv += optind; | |
384 | ||
385 | if ((pwd = getpwuid(userid = getuid())) == NULL) | |
70791e56 | 386 | fatal("unknown user %u", (u_int) userid); |
3c0ef626 | 387 | |
2278ffa1 | 388 | if (!isatty(STDOUT_FILENO)) |
3c0ef626 | 389 | showprogress = 0; |
390 | ||
391 | remin = STDIN_FILENO; | |
392 | remout = STDOUT_FILENO; | |
393 | ||
394 | if (fflag) { | |
395 | /* Follow "protocol", send data. */ | |
396 | (void) response(); | |
397 | source(argc, argv); | |
398 | exit(errs != 0); | |
399 | } | |
400 | if (tflag) { | |
401 | /* Receive data. */ | |
402 | sink(argc, argv); | |
403 | exit(errs != 0); | |
404 | } | |
405 | if (argc < 2) | |
406 | usage(); | |
407 | if (argc > 2) | |
408 | targetshouldbedirectory = 1; | |
409 | ||
410 | remin = remout = -1; | |
1c14df9e | 411 | do_cmd_pid = -1; |
3c0ef626 | 412 | /* Command to be executed on remote system using "ssh". */ |
413 | (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s", | |
414 | verbose_mode ? " -v" : "", | |
415 | iamrecursive ? " -r" : "", pflag ? " -p" : "", | |
416 | targetshouldbedirectory ? " -d" : ""); | |
417 | ||
418 | (void) signal(SIGPIPE, lostconn); | |
419 | ||
420 | if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */ | |
421 | toremote(targ, argc, argv); | |
422 | else { | |
3c0ef626 | 423 | if (targetshouldbedirectory) |
424 | verifydir(argv[argc - 1]); | |
e00da40d | 425 | tolocal(argc, argv); /* Dest is local host. */ |
3c0ef626 | 426 | } |
1c14df9e | 427 | /* |
428 | * Finally check the exit status of the ssh process, if one was forked | |
429 | * and no error has occured yet | |
430 | */ | |
431 | if (do_cmd_pid != -1 && errs == 0) { | |
432 | if (remin != -1) | |
433 | (void) close(remin); | |
434 | if (remout != -1) | |
435 | (void) close(remout); | |
436 | if (waitpid(do_cmd_pid, &status, 0) == -1) | |
437 | errs = 1; | |
438 | else { | |
439 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
440 | errs = 1; | |
441 | } | |
442 | } | |
3c0ef626 | 443 | exit(errs != 0); |
444 | } | |
445 | ||
446 | void | |
70791e56 | 447 | toremote(char *targ, int argc, char **argv) |
3c0ef626 | 448 | { |
34fee935 | 449 | char *bp, *host, *src, *suser, *thost, *tuser, *arg; |
e00da40d | 450 | arglist alist; |
2e437378 | 451 | int i; |
e00da40d | 452 | |
453 | memset(&alist, '\0', sizeof(alist)); | |
454 | alist.list = NULL; | |
3c0ef626 | 455 | |
456 | *targ++ = 0; | |
457 | if (*targ == 0) | |
458 | targ = "."; | |
459 | ||
34fee935 | 460 | arg = xstrdup(argv[argc - 1]); |
461 | if ((thost = strrchr(arg, '@'))) { | |
3c0ef626 | 462 | /* user@host */ |
463 | *thost++ = 0; | |
34fee935 | 464 | tuser = arg; |
3c0ef626 | 465 | if (*tuser == '\0') |
466 | tuser = NULL; | |
3c0ef626 | 467 | } else { |
34fee935 | 468 | thost = arg; |
3c0ef626 | 469 | tuser = NULL; |
470 | } | |
471 | ||
e00da40d | 472 | if (tuser != NULL && !okname(tuser)) { |
473 | xfree(arg); | |
474 | return; | |
475 | } | |
476 | ||
3c0ef626 | 477 | for (i = 0; i < argc - 1; i++) { |
478 | src = colon(argv[i]); | |
479 | if (src) { /* remote to remote */ | |
e00da40d | 480 | freeargs(&alist); |
481 | addargs(&alist, "%s", ssh_program); | |
482 | if (verbose_mode) | |
483 | addargs(&alist, "-v"); | |
484 | addargs(&alist, "-x"); | |
485 | addargs(&alist, "-oClearAllForwardings yes"); | |
486 | addargs(&alist, "-n"); | |
487 | ||
3c0ef626 | 488 | *src++ = 0; |
489 | if (*src == 0) | |
490 | src = "."; | |
1c14df9e | 491 | host = strrchr(argv[i], '@'); |
e00da40d | 492 | |
3c0ef626 | 493 | if (host) { |
494 | *host++ = 0; | |
495 | host = cleanhostname(host); | |
496 | suser = argv[i]; | |
497 | if (*suser == '\0') | |
498 | suser = pwd->pw_name; | |
e00da40d | 499 | else if (!okname(suser)) |
3c0ef626 | 500 | continue; |
e00da40d | 501 | addargs(&alist, "-l"); |
502 | addargs(&alist, "%s", suser); | |
3c0ef626 | 503 | } else { |
504 | host = cleanhostname(argv[i]); | |
3c0ef626 | 505 | } |
e00da40d | 506 | addargs(&alist, "%s", host); |
507 | addargs(&alist, "%s", cmd); | |
508 | addargs(&alist, "%s", src); | |
509 | addargs(&alist, "%s%s%s:%s", | |
510 | tuser ? tuser : "", tuser ? "@" : "", | |
511 | thost, targ); | |
512 | if (do_local_cmd(&alist) != 0) | |
416fd2a8 | 513 | errs = 1; |
3c0ef626 | 514 | } else { /* local to remote */ |
515 | if (remin == -1) { | |
2e437378 | 516 | xasprintf(&bp, "%s -t %s", cmd, targ); |
3c0ef626 | 517 | host = cleanhostname(thost); |
518 | if (do_cmd(host, tuser, bp, &remin, | |
2e437378 | 519 | &remout) < 0) |
3c0ef626 | 520 | exit(1); |
521 | if (response() < 0) | |
522 | exit(1); | |
523 | (void) xfree(bp); | |
524 | } | |
525 | source(1, argv + i); | |
526 | } | |
527 | } | |
2e437378 | 528 | xfree(arg); |
3c0ef626 | 529 | } |
530 | ||
531 | void | |
70791e56 | 532 | tolocal(int argc, char **argv) |
3c0ef626 | 533 | { |
3c0ef626 | 534 | char *bp, *host, *src, *suser; |
e00da40d | 535 | arglist alist; |
2e437378 | 536 | int i; |
e00da40d | 537 | |
538 | memset(&alist, '\0', sizeof(alist)); | |
539 | alist.list = NULL; | |
3c0ef626 | 540 | |
541 | for (i = 0; i < argc - 1; i++) { | |
542 | if (!(src = colon(argv[i]))) { /* Local to local. */ | |
e00da40d | 543 | freeargs(&alist); |
544 | addargs(&alist, "%s", _PATH_CP); | |
545 | if (iamrecursive) | |
546 | addargs(&alist, "-r"); | |
547 | if (pflag) | |
548 | addargs(&alist, "-p"); | |
549 | addargs(&alist, "%s", argv[i]); | |
550 | addargs(&alist, "%s", argv[argc-1]); | |
551 | if (do_local_cmd(&alist)) | |
3c0ef626 | 552 | ++errs; |
3c0ef626 | 553 | continue; |
554 | } | |
555 | *src++ = 0; | |
556 | if (*src == 0) | |
557 | src = "."; | |
1c14df9e | 558 | if ((host = strrchr(argv[i], '@')) == NULL) { |
3c0ef626 | 559 | host = argv[i]; |
560 | suser = NULL; | |
561 | } else { | |
562 | *host++ = 0; | |
563 | suser = argv[i]; | |
564 | if (*suser == '\0') | |
565 | suser = pwd->pw_name; | |
3c0ef626 | 566 | } |
567 | host = cleanhostname(host); | |
2e437378 | 568 | xasprintf(&bp, "%s -f %s", cmd, src); |
569 | if (do_cmd(host, suser, bp, &remin, &remout) < 0) { | |
3c0ef626 | 570 | (void) xfree(bp); |
571 | ++errs; | |
572 | continue; | |
573 | } | |
574 | xfree(bp); | |
575 | sink(1, argv + argc - 1); | |
576 | (void) close(remin); | |
577 | remin = remout = -1; | |
578 | } | |
579 | } | |
580 | ||
581 | void | |
70791e56 | 582 | source(int argc, char **argv) |
3c0ef626 | 583 | { |
584 | struct stat stb; | |
585 | static BUF buffer; | |
586 | BUF *bp; | |
34fee935 | 587 | off_t i, amt, statbytes; |
588 | size_t result; | |
589 | int fd = -1, haderr, indx; | |
25d429a2 | 590 | char *last, *name, buf[16384], encname[MAXPATHLEN]; |
3c0ef626 | 591 | int len; |
592 | ||
593 | for (indx = 0; indx < argc; ++indx) { | |
594 | name = argv[indx]; | |
595 | statbytes = 0; | |
596 | len = strlen(name); | |
597 | while (len > 1 && name[len-1] == '/') | |
598 | name[--len] = '\0'; | |
25d429a2 | 599 | if ((fd = open(name, O_RDONLY|O_NONBLOCK, 0)) < 0) |
600 | goto syserr; | |
3c0ef626 | 601 | if (strchr(name, '\n') != NULL) { |
25d429a2 | 602 | strnvis(encname, name, sizeof(encname), VIS_NL); |
603 | name = encname; | |
3c0ef626 | 604 | } |
3c0ef626 | 605 | if (fstat(fd, &stb) < 0) { |
606 | syserr: run_err("%s: %s", name, strerror(errno)); | |
607 | goto next; | |
608 | } | |
25d429a2 | 609 | unset_nonblock(fd); |
3c0ef626 | 610 | switch (stb.st_mode & S_IFMT) { |
611 | case S_IFREG: | |
612 | break; | |
613 | case S_IFDIR: | |
614 | if (iamrecursive) { | |
615 | rsource(name, &stb); | |
616 | goto next; | |
617 | } | |
618 | /* FALLTHROUGH */ | |
619 | default: | |
620 | run_err("%s: not a regular file", name); | |
621 | goto next; | |
622 | } | |
623 | if ((last = strrchr(name, '/')) == NULL) | |
624 | last = name; | |
625 | else | |
626 | ++last; | |
627 | curfile = last; | |
628 | if (pflag) { | |
629 | /* | |
630 | * Make it compatible with possible future | |
631 | * versions expecting microseconds. | |
632 | */ | |
633 | (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n", | |
634 | (u_long) stb.st_mtime, | |
635 | (u_long) stb.st_atime); | |
70791e56 | 636 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
3c0ef626 | 637 | if (response() < 0) |
638 | goto next; | |
639 | } | |
640 | #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) | |
3c0ef626 | 641 | snprintf(buf, sizeof buf, "C%04o %lld %s\n", |
642 | (u_int) (stb.st_mode & FILEMODEMASK), | |
e00da40d | 643 | (long long)stb.st_size, last); |
3c0ef626 | 644 | if (verbose_mode) { |
645 | fprintf(stderr, "Sending file modes: %s", buf); | |
3c0ef626 | 646 | } |
70791e56 | 647 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
3c0ef626 | 648 | if (response() < 0) |
649 | goto next; | |
34fee935 | 650 | if ((bp = allocbuf(&buffer, fd, sizeof(buf))) == NULL) { |
e00da40d | 651 | next: if (fd != -1) { |
652 | (void) close(fd); | |
653 | fd = -1; | |
654 | } | |
3c0ef626 | 655 | continue; |
656 | } | |
1c14df9e | 657 | if (showprogress) |
658 | start_progress_meter(curfile, stb.st_size, &statbytes); | |
3c0ef626 | 659 | /* Keep writing after an error so that we stay sync'd up. */ |
660 | for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { | |
661 | amt = bp->cnt; | |
662 | if (i + amt > stb.st_size) | |
663 | amt = stb.st_size - i; | |
664 | if (!haderr) { | |
665 | result = atomicio(read, fd, bp->buf, amt); | |
666 | if (result != amt) | |
34fee935 | 667 | haderr = errno; |
3c0ef626 | 668 | } |
669 | if (haderr) | |
70791e56 | 670 | (void) atomicio(vwrite, remout, bp->buf, amt); |
3c0ef626 | 671 | else { |
70791e56 | 672 | result = atomicio(vwrite, remout, bp->buf, amt); |
3c0ef626 | 673 | if (result != amt) |
34fee935 | 674 | haderr = errno; |
3c0ef626 | 675 | statbytes += result; |
676 | } | |
416fd2a8 | 677 | if (limit_rate) |
1c14df9e | 678 | bwlimit(amt); |
3c0ef626 | 679 | } |
680 | if (showprogress) | |
1c14df9e | 681 | stop_progress_meter(); |
3c0ef626 | 682 | |
e00da40d | 683 | if (fd != -1) { |
684 | if (close(fd) < 0 && !haderr) | |
685 | haderr = errno; | |
686 | fd = -1; | |
687 | } | |
3c0ef626 | 688 | if (!haderr) |
70791e56 | 689 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 690 | else |
691 | run_err("%s: %s", name, strerror(haderr)); | |
692 | (void) response(); | |
693 | } | |
694 | } | |
695 | ||
696 | void | |
70791e56 | 697 | rsource(char *name, struct stat *statp) |
3c0ef626 | 698 | { |
699 | DIR *dirp; | |
700 | struct dirent *dp; | |
701 | char *last, *vect[1], path[1100]; | |
702 | ||
703 | if (!(dirp = opendir(name))) { | |
704 | run_err("%s: %s", name, strerror(errno)); | |
705 | return; | |
706 | } | |
707 | last = strrchr(name, '/'); | |
708 | if (last == 0) | |
709 | last = name; | |
710 | else | |
711 | last++; | |
712 | if (pflag) { | |
713 | (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n", | |
714 | (u_long) statp->st_mtime, | |
715 | (u_long) statp->st_atime); | |
70791e56 | 716 | (void) atomicio(vwrite, remout, path, strlen(path)); |
3c0ef626 | 717 | if (response() < 0) { |
718 | closedir(dirp); | |
719 | return; | |
720 | } | |
721 | } | |
722 | (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n", | |
723 | (u_int) (statp->st_mode & FILEMODEMASK), 0, last); | |
724 | if (verbose_mode) | |
725 | fprintf(stderr, "Entering directory: %s", path); | |
70791e56 | 726 | (void) atomicio(vwrite, remout, path, strlen(path)); |
3c0ef626 | 727 | if (response() < 0) { |
728 | closedir(dirp); | |
729 | return; | |
730 | } | |
731 | while ((dp = readdir(dirp)) != NULL) { | |
732 | if (dp->d_ino == 0) | |
733 | continue; | |
734 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) | |
735 | continue; | |
736 | if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) { | |
737 | run_err("%s/%s: name too long", name, dp->d_name); | |
738 | continue; | |
739 | } | |
740 | (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name); | |
741 | vect[0] = path; | |
742 | source(1, vect); | |
743 | } | |
744 | (void) closedir(dirp); | |
70791e56 | 745 | (void) atomicio(vwrite, remout, "E\n", 2); |
3c0ef626 | 746 | (void) response(); |
747 | } | |
748 | ||
1c14df9e | 749 | void |
750 | bwlimit(int amount) | |
751 | { | |
752 | static struct timeval bwstart, bwend; | |
753 | static int lamt, thresh = 16384; | |
1b56ff3d | 754 | u_int64_t waitlen; |
1c14df9e | 755 | struct timespec ts, rm; |
756 | ||
757 | if (!timerisset(&bwstart)) { | |
758 | gettimeofday(&bwstart, NULL); | |
759 | return; | |
760 | } | |
761 | ||
762 | lamt += amount; | |
763 | if (lamt < thresh) | |
764 | return; | |
765 | ||
766 | gettimeofday(&bwend, NULL); | |
767 | timersub(&bwend, &bwstart, &bwend); | |
768 | if (!timerisset(&bwend)) | |
769 | return; | |
770 | ||
771 | lamt *= 8; | |
1b56ff3d | 772 | waitlen = (double)1000000L * lamt / limit_rate; |
1c14df9e | 773 | |
1b56ff3d | 774 | bwstart.tv_sec = waitlen / 1000000L; |
775 | bwstart.tv_usec = waitlen % 1000000L; | |
1c14df9e | 776 | |
777 | if (timercmp(&bwstart, &bwend, >)) { | |
778 | timersub(&bwstart, &bwend, &bwend); | |
779 | ||
780 | /* Adjust the wait time */ | |
781 | if (bwend.tv_sec) { | |
782 | thresh /= 2; | |
783 | if (thresh < 2048) | |
784 | thresh = 2048; | |
785 | } else if (bwend.tv_usec < 100) { | |
786 | thresh *= 2; | |
787 | if (thresh > 32768) | |
788 | thresh = 32768; | |
789 | } | |
790 | ||
791 | TIMEVAL_TO_TIMESPEC(&bwend, &ts); | |
792 | while (nanosleep(&ts, &rm) == -1) { | |
793 | if (errno != EINTR) | |
794 | break; | |
795 | ts = rm; | |
796 | } | |
797 | } | |
798 | ||
799 | lamt = 0; | |
800 | gettimeofday(&bwstart, NULL); | |
801 | } | |
802 | ||
3c0ef626 | 803 | void |
70791e56 | 804 | sink(int argc, char **argv) |
3c0ef626 | 805 | { |
806 | static BUF buffer; | |
807 | struct stat stb; | |
808 | enum { | |
809 | YES, NO, DISPLAYED | |
810 | } wrerr; | |
811 | BUF *bp; | |
34fee935 | 812 | off_t i; |
813 | size_t j, count; | |
2e437378 | 814 | int amt, exists, first, ofd; |
815 | mode_t mode, omode, mask; | |
1c14df9e | 816 | off_t size, statbytes; |
3c0ef626 | 817 | int setimes, targisdir, wrerrno = 0; |
34fee935 | 818 | char ch, *cp, *np, *targ, *why, *vect[1], buf[16384]; |
3c0ef626 | 819 | struct timeval tv[2]; |
820 | ||
821 | #define atime tv[0] | |
822 | #define mtime tv[1] | |
34fee935 | 823 | #define SCREWUP(str) { why = str; goto screwup; } |
3c0ef626 | 824 | |
825 | setimes = targisdir = 0; | |
826 | mask = umask(0); | |
827 | if (!pflag) | |
828 | (void) umask(mask); | |
829 | if (argc != 1) { | |
830 | run_err("ambiguous target"); | |
831 | exit(1); | |
832 | } | |
833 | targ = *argv; | |
834 | if (targetshouldbedirectory) | |
835 | verifydir(targ); | |
836 | ||
70791e56 | 837 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 838 | if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) |
839 | targisdir = 1; | |
840 | for (first = 1;; first = 0) { | |
841 | cp = buf; | |
34fee935 | 842 | if (atomicio(read, remin, cp, 1) != 1) |
3c0ef626 | 843 | return; |
844 | if (*cp++ == '\n') | |
845 | SCREWUP("unexpected <newline>"); | |
846 | do { | |
847 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) | |
848 | SCREWUP("lost connection"); | |
849 | *cp++ = ch; | |
850 | } while (cp < &buf[sizeof(buf) - 1] && ch != '\n'); | |
851 | *cp = 0; | |
1b56ff3d | 852 | if (verbose_mode) |
853 | fprintf(stderr, "Sink: %s", buf); | |
3c0ef626 | 854 | |
855 | if (buf[0] == '\01' || buf[0] == '\02') { | |
856 | if (iamremote == 0) | |
70791e56 | 857 | (void) atomicio(vwrite, STDERR_FILENO, |
3c0ef626 | 858 | buf + 1, strlen(buf + 1)); |
859 | if (buf[0] == '\02') | |
860 | exit(1); | |
861 | ++errs; | |
862 | continue; | |
863 | } | |
864 | if (buf[0] == 'E') { | |
70791e56 | 865 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 866 | return; |
867 | } | |
868 | if (ch == '\n') | |
869 | *--cp = 0; | |
870 | ||
871 | cp = buf; | |
872 | if (*cp == 'T') { | |
873 | setimes++; | |
874 | cp++; | |
875 | mtime.tv_sec = strtol(cp, &cp, 10); | |
876 | if (!cp || *cp++ != ' ') | |
877 | SCREWUP("mtime.sec not delimited"); | |
878 | mtime.tv_usec = strtol(cp, &cp, 10); | |
879 | if (!cp || *cp++ != ' ') | |
880 | SCREWUP("mtime.usec not delimited"); | |
881 | atime.tv_sec = strtol(cp, &cp, 10); | |
882 | if (!cp || *cp++ != ' ') | |
883 | SCREWUP("atime.sec not delimited"); | |
884 | atime.tv_usec = strtol(cp, &cp, 10); | |
885 | if (!cp || *cp++ != '\0') | |
886 | SCREWUP("atime.usec not delimited"); | |
70791e56 | 887 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 888 | continue; |
889 | } | |
890 | if (*cp != 'C' && *cp != 'D') { | |
891 | /* | |
892 | * Check for the case "rcp remote:foo\* local:bar". | |
893 | * In this case, the line "No match." can be returned | |
894 | * by the shell before the rcp command on the remote is | |
895 | * executed so the ^Aerror_message convention isn't | |
896 | * followed. | |
897 | */ | |
898 | if (first) { | |
899 | run_err("%s", cp); | |
900 | exit(1); | |
901 | } | |
902 | SCREWUP("expected control record"); | |
903 | } | |
904 | mode = 0; | |
905 | for (++cp; cp < buf + 5; cp++) { | |
906 | if (*cp < '0' || *cp > '7') | |
907 | SCREWUP("bad mode"); | |
908 | mode = (mode << 3) | (*cp - '0'); | |
909 | } | |
910 | if (*cp++ != ' ') | |
911 | SCREWUP("mode not delimited"); | |
912 | ||
913 | for (size = 0; isdigit(*cp);) | |
914 | size = size * 10 + (*cp++ - '0'); | |
915 | if (*cp++ != ' ') | |
916 | SCREWUP("size not delimited"); | |
1b56ff3d | 917 | if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) { |
918 | run_err("error: unexpected filename: %s", cp); | |
919 | exit(1); | |
920 | } | |
3c0ef626 | 921 | if (targisdir) { |
922 | static char *namebuf; | |
34fee935 | 923 | static size_t cursize; |
3c0ef626 | 924 | size_t need; |
925 | ||
926 | need = strlen(targ) + strlen(cp) + 250; | |
927 | if (need > cursize) { | |
928 | if (namebuf) | |
929 | xfree(namebuf); | |
930 | namebuf = xmalloc(need); | |
931 | cursize = need; | |
932 | } | |
933 | (void) snprintf(namebuf, need, "%s%s%s", targ, | |
2980ea68 | 934 | strcmp(targ, "/") ? "/" : "", cp); |
3c0ef626 | 935 | np = namebuf; |
936 | } else | |
937 | np = targ; | |
938 | curfile = cp; | |
939 | exists = stat(np, &stb) == 0; | |
940 | if (buf[0] == 'D') { | |
941 | int mod_flag = pflag; | |
1b56ff3d | 942 | if (!iamrecursive) |
943 | SCREWUP("received directory without -r"); | |
3c0ef626 | 944 | if (exists) { |
945 | if (!S_ISDIR(stb.st_mode)) { | |
946 | errno = ENOTDIR; | |
947 | goto bad; | |
948 | } | |
949 | if (pflag) | |
950 | (void) chmod(np, mode); | |
951 | } else { | |
952 | /* Handle copying from a read-only | |
953 | directory */ | |
954 | mod_flag = 1; | |
955 | if (mkdir(np, mode | S_IRWXU) < 0) | |
956 | goto bad; | |
957 | } | |
958 | vect[0] = xstrdup(np); | |
959 | sink(1, vect); | |
960 | if (setimes) { | |
961 | setimes = 0; | |
962 | if (utimes(vect[0], tv) < 0) | |
963 | run_err("%s: set times: %s", | |
964 | vect[0], strerror(errno)); | |
965 | } | |
966 | if (mod_flag) | |
967 | (void) chmod(vect[0], mode); | |
968 | if (vect[0]) | |
969 | xfree(vect[0]); | |
970 | continue; | |
971 | } | |
972 | omode = mode; | |
973 | mode |= S_IWRITE; | |
974 | if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { | |
975 | bad: run_err("%s: %s", np, strerror(errno)); | |
976 | continue; | |
977 | } | |
70791e56 | 978 | (void) atomicio(vwrite, remout, "", 1); |
34fee935 | 979 | if ((bp = allocbuf(&buffer, ofd, sizeof(buf))) == NULL) { |
3c0ef626 | 980 | (void) close(ofd); |
981 | continue; | |
982 | } | |
983 | cp = bp->buf; | |
984 | wrerr = NO; | |
985 | ||
3c0ef626 | 986 | statbytes = 0; |
1c14df9e | 987 | if (showprogress) |
988 | start_progress_meter(curfile, size, &statbytes); | |
34fee935 | 989 | for (count = i = 0; i < size; i += sizeof(buf)) { |
990 | amt = sizeof(buf); | |
3c0ef626 | 991 | if (i + amt > size) |
992 | amt = size - i; | |
993 | count += amt; | |
994 | do { | |
1b56ff3d | 995 | j = atomicio(read, remin, cp, amt); |
34fee935 | 996 | if (j == 0) { |
3c0ef626 | 997 | run_err("%s", j ? strerror(errno) : |
998 | "dropped connection"); | |
999 | exit(1); | |
1000 | } | |
1001 | amt -= j; | |
1002 | cp += j; | |
1003 | statbytes += j; | |
1004 | } while (amt > 0); | |
416fd2a8 | 1005 | |
1006 | if (limit_rate) | |
34fee935 | 1007 | bwlimit(sizeof(buf)); |
1c14df9e | 1008 | |
3c0ef626 | 1009 | if (count == bp->cnt) { |
1010 | /* Keep reading so we stay sync'd up. */ | |
1011 | if (wrerr == NO) { | |
34fee935 | 1012 | if (atomicio(vwrite, ofd, bp->buf, |
1013 | count) != count) { | |
3c0ef626 | 1014 | wrerr = YES; |
34fee935 | 1015 | wrerrno = errno; |
3c0ef626 | 1016 | } |
1017 | } | |
1018 | count = 0; | |
1019 | cp = bp->buf; | |
1020 | } | |
1021 | } | |
1022 | if (showprogress) | |
1c14df9e | 1023 | stop_progress_meter(); |
3c0ef626 | 1024 | if (count != 0 && wrerr == NO && |
34fee935 | 1025 | atomicio(vwrite, ofd, bp->buf, count) != count) { |
3c0ef626 | 1026 | wrerr = YES; |
34fee935 | 1027 | wrerrno = errno; |
3c0ef626 | 1028 | } |
25d429a2 | 1029 | if (wrerr == NO && (!exists || S_ISREG(stb.st_mode)) && |
1030 | ftruncate(ofd, size) != 0) { | |
3c0ef626 | 1031 | run_err("%s: truncate: %s", np, strerror(errno)); |
1032 | wrerr = DISPLAYED; | |
1033 | } | |
1034 | if (pflag) { | |
1035 | if (exists || omode != mode) | |
1036 | #ifdef HAVE_FCHMOD | |
1b56ff3d | 1037 | if (fchmod(ofd, omode)) { |
3c0ef626 | 1038 | #else /* HAVE_FCHMOD */ |
1b56ff3d | 1039 | if (chmod(np, omode)) { |
3c0ef626 | 1040 | #endif /* HAVE_FCHMOD */ |
1041 | run_err("%s: set mode: %s", | |
1042 | np, strerror(errno)); | |
1b56ff3d | 1043 | wrerr = DISPLAYED; |
1044 | } | |
3c0ef626 | 1045 | } else { |
1046 | if (!exists && omode != mode) | |
1047 | #ifdef HAVE_FCHMOD | |
1b56ff3d | 1048 | if (fchmod(ofd, omode & ~mask)) { |
3c0ef626 | 1049 | #else /* HAVE_FCHMOD */ |
1b56ff3d | 1050 | if (chmod(np, omode & ~mask)) { |
3c0ef626 | 1051 | #endif /* HAVE_FCHMOD */ |
1052 | run_err("%s: set mode: %s", | |
1053 | np, strerror(errno)); | |
1b56ff3d | 1054 | wrerr = DISPLAYED; |
1055 | } | |
3c0ef626 | 1056 | } |
1057 | if (close(ofd) == -1) { | |
1058 | wrerr = YES; | |
1059 | wrerrno = errno; | |
1060 | } | |
1061 | (void) response(); | |
1062 | if (setimes && wrerr == NO) { | |
1063 | setimes = 0; | |
1064 | if (utimes(np, tv) < 0) { | |
1065 | run_err("%s: set times: %s", | |
1066 | np, strerror(errno)); | |
1067 | wrerr = DISPLAYED; | |
1068 | } | |
1069 | } | |
1070 | switch (wrerr) { | |
1071 | case YES: | |
1072 | run_err("%s: %s", np, strerror(wrerrno)); | |
1073 | break; | |
1074 | case NO: | |
70791e56 | 1075 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 1076 | break; |
1077 | case DISPLAYED: | |
1078 | break; | |
1079 | } | |
1080 | } | |
1081 | screwup: | |
1082 | run_err("protocol error: %s", why); | |
1083 | exit(1); | |
1084 | } | |
1085 | ||
1086 | int | |
e9a17296 | 1087 | response(void) |
3c0ef626 | 1088 | { |
1089 | char ch, *cp, resp, rbuf[2048]; | |
1090 | ||
1091 | if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp)) | |
1092 | lostconn(0); | |
1093 | ||
1094 | cp = rbuf; | |
1095 | switch (resp) { | |
1096 | case 0: /* ok */ | |
1097 | return (0); | |
1098 | default: | |
1099 | *cp++ = resp; | |
1100 | /* FALLTHROUGH */ | |
1101 | case 1: /* error, followed by error msg */ | |
1102 | case 2: /* fatal error, "" */ | |
1103 | do { | |
1104 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) | |
1105 | lostconn(0); | |
1106 | *cp++ = ch; | |
1107 | } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n'); | |
1108 | ||
1109 | if (!iamremote) | |
70791e56 | 1110 | (void) atomicio(vwrite, STDERR_FILENO, rbuf, cp - rbuf); |
3c0ef626 | 1111 | ++errs; |
1112 | if (resp == 1) | |
1113 | return (-1); | |
1114 | exit(1); | |
1115 | } | |
1116 | /* NOTREACHED */ | |
1117 | } | |
1118 | ||
1119 | void | |
e9a17296 | 1120 | usage(void) |
3c0ef626 | 1121 | { |
1122 | (void) fprintf(stderr, | |
416fd2a8 | 1123 | "usage: scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]\n" |
2e437378 | 1124 | " [-l limit] [-o ssh_option] [-P port] [-S program]\n" |
25d429a2 | 1125 | " [[user@]host1:]file1 ... [[user@]host2:]file2\n"); |
3c0ef626 | 1126 | exit(1); |
1127 | } | |
1128 | ||
1129 | void | |
1130 | run_err(const char *fmt,...) | |
1131 | { | |
1132 | static FILE *fp; | |
1133 | va_list ap; | |
1134 | ||
1135 | ++errs; | |
2e437378 | 1136 | if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) { |
1137 | (void) fprintf(fp, "%c", 0x01); | |
1138 | (void) fprintf(fp, "scp: "); | |
1139 | va_start(ap, fmt); | |
1140 | (void) vfprintf(fp, fmt, ap); | |
1141 | va_end(ap); | |
1142 | (void) fprintf(fp, "\n"); | |
1143 | (void) fflush(fp); | |
1144 | } | |
3c0ef626 | 1145 | |
1146 | if (!iamremote) { | |
1147 | va_start(ap, fmt); | |
1148 | vfprintf(stderr, fmt, ap); | |
1149 | va_end(ap); | |
1150 | fprintf(stderr, "\n"); | |
1151 | } | |
1152 | } | |
1153 | ||
1154 | void | |
70791e56 | 1155 | verifydir(char *cp) |
3c0ef626 | 1156 | { |
1157 | struct stat stb; | |
1158 | ||
1159 | if (!stat(cp, &stb)) { | |
1160 | if (S_ISDIR(stb.st_mode)) | |
1161 | return; | |
1162 | errno = ENOTDIR; | |
1163 | } | |
1164 | run_err("%s: %s", cp, strerror(errno)); | |
34fee935 | 1165 | killchild(0); |
3c0ef626 | 1166 | } |
1167 | ||
1168 | int | |
70791e56 | 1169 | okname(char *cp0) |
3c0ef626 | 1170 | { |
1171 | int c; | |
1172 | char *cp; | |
1173 | ||
1174 | cp = cp0; | |
1175 | do { | |
1176 | c = (int)*cp; | |
1177 | if (c & 0200) | |
1178 | goto bad; | |
1c14df9e | 1179 | if (!isalpha(c) && !isdigit(c)) { |
1180 | switch (c) { | |
1181 | case '\'': | |
1182 | case '"': | |
1183 | case '`': | |
1184 | case ' ': | |
1185 | case '#': | |
1186 | goto bad; | |
1187 | default: | |
1188 | break; | |
1189 | } | |
1190 | } | |
3c0ef626 | 1191 | } while (*++cp); |
1192 | return (1); | |
1193 | ||
1194 | bad: fprintf(stderr, "%s: invalid user name\n", cp0); | |
1195 | return (0); | |
1196 | } | |
1197 | ||
1198 | BUF * | |
70791e56 | 1199 | allocbuf(BUF *bp, int fd, int blksize) |
3c0ef626 | 1200 | { |
1201 | size_t size; | |
1202 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE | |
1203 | struct stat stb; | |
1204 | ||
1205 | if (fstat(fd, &stb) < 0) { | |
1206 | run_err("fstat: %s", strerror(errno)); | |
1207 | return (0); | |
1208 | } | |
1c14df9e | 1209 | size = roundup(stb.st_blksize, blksize); |
1210 | if (size == 0) | |
3c0ef626 | 1211 | size = blksize; |
3c0ef626 | 1212 | #else /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
1213 | size = blksize; | |
1214 | #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */ | |
1215 | if (bp->cnt >= size) | |
1216 | return (bp); | |
1217 | if (bp->buf == NULL) | |
1218 | bp->buf = xmalloc(size); | |
1219 | else | |
2e437378 | 1220 | bp->buf = xrealloc(bp->buf, 1, size); |
3c0ef626 | 1221 | memset(bp->buf, 0, size); |
1222 | bp->cnt = size; | |
1223 | return (bp); | |
1224 | } | |
1225 | ||
1226 | void | |
70791e56 | 1227 | lostconn(int signo) |
3c0ef626 | 1228 | { |
1229 | if (!iamremote) | |
1230 | write(STDERR_FILENO, "lost connection\n", 16); | |
1231 | if (signo) | |
1232 | _exit(1); | |
1233 | else | |
1234 | exit(1); | |
1235 | } |