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2e437378 | 1 | /* $OpenBSD: scp.c,v 1.155 2006/08/03 03:34:42 deraadt 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> | |
3c0ef626 | 99 | |
100 | #include "xmalloc.h" | |
101 | #include "atomicio.h" | |
102 | #include "pathnames.h" | |
103 | #include "log.h" | |
104 | #include "misc.h" | |
1c14df9e | 105 | #include "progressmeter.h" |
3c0ef626 | 106 | |
3c0ef626 | 107 | extern char *__progname; |
3c0ef626 | 108 | |
2e437378 | 109 | int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout); |
110 | ||
1c14df9e | 111 | void bwlimit(int); |
3c0ef626 | 112 | |
113 | /* Struct for addargs */ | |
114 | arglist args; | |
115 | ||
1c14df9e | 116 | /* Bandwidth limit */ |
416fd2a8 | 117 | off_t limit_rate = 0; |
3c0ef626 | 118 | |
119 | /* Name of current file being transferred. */ | |
120 | char *curfile; | |
121 | ||
122 | /* This is set to non-zero to enable verbose mode. */ | |
123 | int verbose_mode = 0; | |
124 | ||
125 | /* This is set to zero if the progressmeter is not desired. */ | |
126 | int showprogress = 1; | |
127 | ||
128 | /* This is the program to execute for the secured connection. ("ssh" or -S) */ | |
ae43c103 | 129 | char *ssh_program; |
3c0ef626 | 130 | |
1c14df9e | 131 | /* This is used to store the pid of ssh_program */ |
70791e56 | 132 | pid_t do_cmd_pid = -1; |
133 | ||
134 | static void | |
135 | killchild(int signo) | |
136 | { | |
34fee935 | 137 | if (do_cmd_pid > 1) { |
138 | kill(do_cmd_pid, signo ? signo : SIGTERM); | |
139 | waitpid(do_cmd_pid, NULL, 0); | |
140 | } | |
70791e56 | 141 | |
34fee935 | 142 | if (signo) |
143 | _exit(1); | |
144 | exit(1); | |
70791e56 | 145 | } |
1c14df9e | 146 | |
e00da40d | 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 | ||
3c0ef626 | 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 | */ | |
194 | ||
195 | int | |
2e437378 | 196 | do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout) |
3c0ef626 | 197 | { |
198 | int pin[2], pout[2], reserved[2]; | |
199 | ||
200 | if (verbose_mode) | |
201 | fprintf(stderr, | |
202 | "Executing: program %s host %s, user %s, command %s\n", | |
203 | ssh_program, host, | |
204 | remuser ? remuser : "(unspecified)", cmd); | |
205 | ||
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 | */ | |
2e437378 | 210 | if (pipe(reserved) < 0) |
211 | fatal("pipe: %s", strerror(errno)); | |
3c0ef626 | 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 | ||
70791e56 | 223 | /* Fork a child to execute the command on the remote host using ssh. */ |
1c14df9e | 224 | do_cmd_pid = fork(); |
225 | if (do_cmd_pid == 0) { | |
3c0ef626 | 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 | ||
e00da40d | 234 | replacearg(&args, 0, "%s", ssh_program); |
3c0ef626 | 235 | if (remuser != NULL) |
236 | addargs(&args, "-l%s", remuser); | |
237 | addargs(&args, "%s", host); | |
238 | addargs(&args, "%s", cmd); | |
239 | ||
240 | execvp(ssh_program, args.list); | |
241 | perror(ssh_program); | |
242 | exit(1); | |
1c14df9e | 243 | } else if (do_cmd_pid == -1) { |
244 | fatal("fork: %s", strerror(errno)); | |
3c0ef626 | 245 | } |
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]; | |
70791e56 | 251 | signal(SIGTERM, killchild); |
252 | signal(SIGINT, killchild); | |
253 | signal(SIGHUP, killchild); | |
3c0ef626 | 254 | return 0; |
255 | } | |
256 | ||
257 | typedef struct { | |
34fee935 | 258 | size_t cnt; |
3c0ef626 | 259 | char *buf; |
260 | } BUF; | |
261 | ||
262 | BUF *allocbuf(BUF *, int, int); | |
263 | void lostconn(int); | |
3c0ef626 | 264 | int okname(char *); |
265 | void run_err(const char *,...); | |
266 | void verifydir(char *); | |
267 | ||
268 | struct passwd *pwd; | |
269 | uid_t userid; | |
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 | ||
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); | |
283 | ||
284 | int | |
70791e56 | 285 | main(int argc, char **argv) |
3c0ef626 | 286 | { |
2e437378 | 287 | int ch, fflag, tflag, status, n; |
1c14df9e | 288 | double speed; |
2e437378 | 289 | char *targ, *endp, **newargv; |
3c0ef626 | 290 | extern char *optarg; |
291 | extern int optind; | |
292 | ||
e00da40d | 293 | /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
294 | sanitise_stdfd(); | |
295 | ||
2e437378 | 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 | ||
70791e56 | 302 | __progname = ssh_get_progname(argv[0]); |
ae43c103 | 303 | init_pathnames(); |
675a64e2 | 304 | ssh_program = _PATH_SSH_PROGRAM; |
3c0ef626 | 305 | |
e00da40d | 306 | memset(&args, '\0', sizeof(args)); |
3c0ef626 | 307 | args.list = NULL; |
e00da40d | 308 | addargs(&args, "%s", ssh_program); |
3c0ef626 | 309 | addargs(&args, "-x"); |
310 | addargs(&args, "-oForwardAgent no"); | |
e00da40d | 311 | addargs(&args, "-oPermitLocalCommand no"); |
3c0ef626 | 312 | addargs(&args, "-oClearAllForwardings yes"); |
313 | ||
314 | fflag = tflag = 0; | |
2e437378 | 315 | while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q1246S:o:F:")) != -1) |
3c0ef626 | 316 | switch (ch) { |
317 | /* User-visible flags. */ | |
1c14df9e | 318 | case '1': |
319 | case '2': | |
3c0ef626 | 320 | case '4': |
321 | case '6': | |
322 | case 'C': | |
2e437378 | 323 | addargs(&args, "-%c", ch); |
324 | break; | |
3c0ef626 | 325 | case 'o': |
326 | case 'c': | |
327 | case 'i': | |
328 | case 'F': | |
329 | addargs(&args, "-%c%s", ch, optarg); | |
330 | break; | |
331 | case 'P': | |
332 | addargs(&args, "-p%s", optarg); | |
333 | break; | |
334 | case 'B': | |
335 | addargs(&args, "-oBatchmode yes"); | |
336 | break; | |
1c14df9e | 337 | case 'l': |
338 | speed = strtod(optarg, &endp); | |
339 | if (speed <= 0 || *endp != '\0') | |
340 | usage(); | |
416fd2a8 | 341 | limit_rate = speed * 1024; |
1c14df9e | 342 | break; |
3c0ef626 | 343 | case 'p': |
344 | pflag = 1; | |
345 | break; | |
346 | case 'r': | |
347 | iamrecursive = 1; | |
348 | break; | |
349 | case 'S': | |
350 | ssh_program = xstrdup(optarg); | |
351 | break; | |
352 | case 'v': | |
353 | addargs(&args, "-v"); | |
354 | verbose_mode = 1; | |
355 | break; | |
356 | case 'q': | |
416fd2a8 | 357 | addargs(&args, "-q"); |
3c0ef626 | 358 | showprogress = 0; |
359 | break; | |
360 | ||
361 | /* Server options. */ | |
362 | case 'd': | |
363 | targetshouldbedirectory = 1; | |
364 | break; | |
365 | case 'f': /* "from" */ | |
366 | iamremote = 1; | |
367 | fflag = 1; | |
368 | break; | |
369 | case 't': /* "to" */ | |
370 | iamremote = 1; | |
371 | tflag = 1; | |
372 | #ifdef HAVE_CYGWIN | |
373 | setmode(0, O_BINARY); | |
374 | #endif | |
375 | break; | |
376 | default: | |
377 | usage(); | |
378 | } | |
379 | argc -= optind; | |
380 | argv += optind; | |
381 | ||
382 | if ((pwd = getpwuid(userid = getuid())) == NULL) | |
70791e56 | 383 | fatal("unknown user %u", (u_int) userid); |
3c0ef626 | 384 | |
385 | if (!isatty(STDERR_FILENO)) | |
386 | showprogress = 0; | |
387 | ||
388 | remin = STDIN_FILENO; | |
389 | remout = STDOUT_FILENO; | |
390 | ||
391 | if (fflag) { | |
392 | /* Follow "protocol", send data. */ | |
393 | (void) response(); | |
394 | source(argc, argv); | |
395 | exit(errs != 0); | |
396 | } | |
397 | if (tflag) { | |
398 | /* Receive data. */ | |
399 | sink(argc, argv); | |
400 | exit(errs != 0); | |
401 | } | |
402 | if (argc < 2) | |
403 | usage(); | |
404 | if (argc > 2) | |
405 | targetshouldbedirectory = 1; | |
406 | ||
407 | remin = remout = -1; | |
1c14df9e | 408 | do_cmd_pid = -1; |
3c0ef626 | 409 | /* Command to be executed on remote system using "ssh". */ |
410 | (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s", | |
411 | verbose_mode ? " -v" : "", | |
412 | iamrecursive ? " -r" : "", pflag ? " -p" : "", | |
413 | targetshouldbedirectory ? " -d" : ""); | |
414 | ||
415 | (void) signal(SIGPIPE, lostconn); | |
416 | ||
417 | if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */ | |
418 | toremote(targ, argc, argv); | |
419 | else { | |
3c0ef626 | 420 | if (targetshouldbedirectory) |
421 | verifydir(argv[argc - 1]); | |
e00da40d | 422 | tolocal(argc, argv); /* Dest is local host. */ |
3c0ef626 | 423 | } |
1c14df9e | 424 | /* |
425 | * Finally check the exit status of the ssh process, if one was forked | |
426 | * and no error has occured yet | |
427 | */ | |
428 | if (do_cmd_pid != -1 && errs == 0) { | |
429 | if (remin != -1) | |
430 | (void) close(remin); | |
431 | if (remout != -1) | |
432 | (void) close(remout); | |
433 | if (waitpid(do_cmd_pid, &status, 0) == -1) | |
434 | errs = 1; | |
435 | else { | |
436 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
437 | errs = 1; | |
438 | } | |
439 | } | |
3c0ef626 | 440 | exit(errs != 0); |
441 | } | |
442 | ||
443 | void | |
70791e56 | 444 | toremote(char *targ, int argc, char **argv) |
3c0ef626 | 445 | { |
34fee935 | 446 | char *bp, *host, *src, *suser, *thost, *tuser, *arg; |
e00da40d | 447 | arglist alist; |
2e437378 | 448 | int i; |
e00da40d | 449 | |
450 | memset(&alist, '\0', sizeof(alist)); | |
451 | alist.list = NULL; | |
3c0ef626 | 452 | |
453 | *targ++ = 0; | |
454 | if (*targ == 0) | |
455 | targ = "."; | |
456 | ||
34fee935 | 457 | arg = xstrdup(argv[argc - 1]); |
458 | if ((thost = strrchr(arg, '@'))) { | |
3c0ef626 | 459 | /* user@host */ |
460 | *thost++ = 0; | |
34fee935 | 461 | tuser = arg; |
3c0ef626 | 462 | if (*tuser == '\0') |
463 | tuser = NULL; | |
3c0ef626 | 464 | } else { |
34fee935 | 465 | thost = arg; |
3c0ef626 | 466 | tuser = NULL; |
467 | } | |
468 | ||
e00da40d | 469 | if (tuser != NULL && !okname(tuser)) { |
470 | xfree(arg); | |
471 | return; | |
472 | } | |
473 | ||
3c0ef626 | 474 | for (i = 0; i < argc - 1; i++) { |
475 | src = colon(argv[i]); | |
476 | if (src) { /* remote to remote */ | |
e00da40d | 477 | freeargs(&alist); |
478 | addargs(&alist, "%s", ssh_program); | |
479 | if (verbose_mode) | |
480 | addargs(&alist, "-v"); | |
481 | addargs(&alist, "-x"); | |
482 | addargs(&alist, "-oClearAllForwardings yes"); | |
483 | addargs(&alist, "-n"); | |
484 | ||
3c0ef626 | 485 | *src++ = 0; |
486 | if (*src == 0) | |
487 | src = "."; | |
1c14df9e | 488 | host = strrchr(argv[i], '@'); |
e00da40d | 489 | |
3c0ef626 | 490 | if (host) { |
491 | *host++ = 0; | |
492 | host = cleanhostname(host); | |
493 | suser = argv[i]; | |
494 | if (*suser == '\0') | |
495 | suser = pwd->pw_name; | |
e00da40d | 496 | else if (!okname(suser)) |
3c0ef626 | 497 | continue; |
e00da40d | 498 | addargs(&alist, "-l"); |
499 | addargs(&alist, "%s", suser); | |
3c0ef626 | 500 | } else { |
501 | host = cleanhostname(argv[i]); | |
3c0ef626 | 502 | } |
e00da40d | 503 | addargs(&alist, "%s", host); |
504 | addargs(&alist, "%s", cmd); | |
505 | addargs(&alist, "%s", src); | |
506 | addargs(&alist, "%s%s%s:%s", | |
507 | tuser ? tuser : "", tuser ? "@" : "", | |
508 | thost, targ); | |
509 | if (do_local_cmd(&alist) != 0) | |
416fd2a8 | 510 | errs = 1; |
3c0ef626 | 511 | } else { /* local to remote */ |
512 | if (remin == -1) { | |
2e437378 | 513 | xasprintf(&bp, "%s -t %s", cmd, targ); |
3c0ef626 | 514 | host = cleanhostname(thost); |
515 | if (do_cmd(host, tuser, bp, &remin, | |
2e437378 | 516 | &remout) < 0) |
3c0ef626 | 517 | exit(1); |
518 | if (response() < 0) | |
519 | exit(1); | |
520 | (void) xfree(bp); | |
521 | } | |
522 | source(1, argv + i); | |
523 | } | |
524 | } | |
2e437378 | 525 | xfree(arg); |
3c0ef626 | 526 | } |
527 | ||
528 | void | |
70791e56 | 529 | tolocal(int argc, char **argv) |
3c0ef626 | 530 | { |
3c0ef626 | 531 | char *bp, *host, *src, *suser; |
e00da40d | 532 | arglist alist; |
2e437378 | 533 | int i; |
e00da40d | 534 | |
535 | memset(&alist, '\0', sizeof(alist)); | |
536 | alist.list = NULL; | |
3c0ef626 | 537 | |
538 | for (i = 0; i < argc - 1; i++) { | |
539 | if (!(src = colon(argv[i]))) { /* Local to local. */ | |
e00da40d | 540 | freeargs(&alist); |
541 | addargs(&alist, "%s", _PATH_CP); | |
542 | if (iamrecursive) | |
543 | addargs(&alist, "-r"); | |
544 | if (pflag) | |
545 | addargs(&alist, "-p"); | |
546 | addargs(&alist, "%s", argv[i]); | |
547 | addargs(&alist, "%s", argv[argc-1]); | |
548 | if (do_local_cmd(&alist)) | |
3c0ef626 | 549 | ++errs; |
3c0ef626 | 550 | continue; |
551 | } | |
552 | *src++ = 0; | |
553 | if (*src == 0) | |
554 | src = "."; | |
1c14df9e | 555 | if ((host = strrchr(argv[i], '@')) == NULL) { |
3c0ef626 | 556 | host = argv[i]; |
557 | suser = NULL; | |
558 | } else { | |
559 | *host++ = 0; | |
560 | suser = argv[i]; | |
561 | if (*suser == '\0') | |
562 | suser = pwd->pw_name; | |
3c0ef626 | 563 | } |
564 | host = cleanhostname(host); | |
2e437378 | 565 | xasprintf(&bp, "%s -f %s", cmd, src); |
566 | if (do_cmd(host, suser, bp, &remin, &remout) < 0) { | |
3c0ef626 | 567 | (void) xfree(bp); |
568 | ++errs; | |
569 | continue; | |
570 | } | |
571 | xfree(bp); | |
572 | sink(1, argv + argc - 1); | |
573 | (void) close(remin); | |
574 | remin = remout = -1; | |
575 | } | |
576 | } | |
577 | ||
578 | void | |
70791e56 | 579 | source(int argc, char **argv) |
3c0ef626 | 580 | { |
581 | struct stat stb; | |
582 | static BUF buffer; | |
583 | BUF *bp; | |
34fee935 | 584 | off_t i, amt, statbytes; |
585 | size_t result; | |
586 | int fd = -1, haderr, indx; | |
587 | char *last, *name, buf[16384]; | |
3c0ef626 | 588 | int len; |
589 | ||
590 | for (indx = 0; indx < argc; ++indx) { | |
591 | name = argv[indx]; | |
592 | statbytes = 0; | |
593 | len = strlen(name); | |
594 | while (len > 1 && name[len-1] == '/') | |
595 | name[--len] = '\0'; | |
596 | if (strchr(name, '\n') != NULL) { | |
597 | run_err("%s: skipping, filename contains a newline", | |
598 | name); | |
599 | goto next; | |
600 | } | |
601 | if ((fd = open(name, O_RDONLY, 0)) < 0) | |
602 | goto syserr; | |
603 | if (fstat(fd, &stb) < 0) { | |
604 | syserr: run_err("%s: %s", name, strerror(errno)); | |
605 | goto next; | |
606 | } | |
607 | switch (stb.st_mode & S_IFMT) { | |
608 | case S_IFREG: | |
609 | break; | |
610 | case S_IFDIR: | |
611 | if (iamrecursive) { | |
612 | rsource(name, &stb); | |
613 | goto next; | |
614 | } | |
615 | /* FALLTHROUGH */ | |
616 | default: | |
617 | run_err("%s: not a regular file", name); | |
618 | goto next; | |
619 | } | |
620 | if ((last = strrchr(name, '/')) == NULL) | |
621 | last = name; | |
622 | else | |
623 | ++last; | |
624 | curfile = last; | |
625 | if (pflag) { | |
626 | /* | |
627 | * Make it compatible with possible future | |
628 | * versions expecting microseconds. | |
629 | */ | |
630 | (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n", | |
631 | (u_long) stb.st_mtime, | |
632 | (u_long) stb.st_atime); | |
70791e56 | 633 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
3c0ef626 | 634 | if (response() < 0) |
635 | goto next; | |
636 | } | |
637 | #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) | |
3c0ef626 | 638 | snprintf(buf, sizeof buf, "C%04o %lld %s\n", |
639 | (u_int) (stb.st_mode & FILEMODEMASK), | |
e00da40d | 640 | (long long)stb.st_size, last); |
3c0ef626 | 641 | if (verbose_mode) { |
642 | fprintf(stderr, "Sending file modes: %s", buf); | |
3c0ef626 | 643 | } |
70791e56 | 644 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
3c0ef626 | 645 | if (response() < 0) |
646 | goto next; | |
34fee935 | 647 | if ((bp = allocbuf(&buffer, fd, sizeof(buf))) == NULL) { |
e00da40d | 648 | next: if (fd != -1) { |
649 | (void) close(fd); | |
650 | fd = -1; | |
651 | } | |
3c0ef626 | 652 | continue; |
653 | } | |
1c14df9e | 654 | if (showprogress) |
655 | start_progress_meter(curfile, stb.st_size, &statbytes); | |
3c0ef626 | 656 | /* Keep writing after an error so that we stay sync'd up. */ |
657 | for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { | |
658 | amt = bp->cnt; | |
659 | if (i + amt > stb.st_size) | |
660 | amt = stb.st_size - i; | |
661 | if (!haderr) { | |
662 | result = atomicio(read, fd, bp->buf, amt); | |
663 | if (result != amt) | |
34fee935 | 664 | haderr = errno; |
3c0ef626 | 665 | } |
666 | if (haderr) | |
70791e56 | 667 | (void) atomicio(vwrite, remout, bp->buf, amt); |
3c0ef626 | 668 | else { |
70791e56 | 669 | result = atomicio(vwrite, remout, bp->buf, amt); |
3c0ef626 | 670 | if (result != amt) |
34fee935 | 671 | haderr = errno; |
3c0ef626 | 672 | statbytes += result; |
673 | } | |
416fd2a8 | 674 | if (limit_rate) |
1c14df9e | 675 | bwlimit(amt); |
3c0ef626 | 676 | } |
677 | if (showprogress) | |
1c14df9e | 678 | stop_progress_meter(); |
3c0ef626 | 679 | |
e00da40d | 680 | if (fd != -1) { |
681 | if (close(fd) < 0 && !haderr) | |
682 | haderr = errno; | |
683 | fd = -1; | |
684 | } | |
3c0ef626 | 685 | if (!haderr) |
70791e56 | 686 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 687 | else |
688 | run_err("%s: %s", name, strerror(haderr)); | |
689 | (void) response(); | |
690 | } | |
691 | } | |
692 | ||
693 | void | |
70791e56 | 694 | rsource(char *name, struct stat *statp) |
3c0ef626 | 695 | { |
696 | DIR *dirp; | |
697 | struct dirent *dp; | |
698 | char *last, *vect[1], path[1100]; | |
699 | ||
700 | if (!(dirp = opendir(name))) { | |
701 | run_err("%s: %s", name, strerror(errno)); | |
702 | return; | |
703 | } | |
704 | last = strrchr(name, '/'); | |
705 | if (last == 0) | |
706 | last = name; | |
707 | else | |
708 | last++; | |
709 | if (pflag) { | |
710 | (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n", | |
711 | (u_long) statp->st_mtime, | |
712 | (u_long) statp->st_atime); | |
70791e56 | 713 | (void) atomicio(vwrite, remout, path, strlen(path)); |
3c0ef626 | 714 | if (response() < 0) { |
715 | closedir(dirp); | |
716 | return; | |
717 | } | |
718 | } | |
719 | (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n", | |
720 | (u_int) (statp->st_mode & FILEMODEMASK), 0, last); | |
721 | if (verbose_mode) | |
722 | fprintf(stderr, "Entering directory: %s", path); | |
70791e56 | 723 | (void) atomicio(vwrite, remout, path, strlen(path)); |
3c0ef626 | 724 | if (response() < 0) { |
725 | closedir(dirp); | |
726 | return; | |
727 | } | |
728 | while ((dp = readdir(dirp)) != NULL) { | |
729 | if (dp->d_ino == 0) | |
730 | continue; | |
731 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) | |
732 | continue; | |
733 | if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) { | |
734 | run_err("%s/%s: name too long", name, dp->d_name); | |
735 | continue; | |
736 | } | |
737 | (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name); | |
738 | vect[0] = path; | |
739 | source(1, vect); | |
740 | } | |
741 | (void) closedir(dirp); | |
70791e56 | 742 | (void) atomicio(vwrite, remout, "E\n", 2); |
3c0ef626 | 743 | (void) response(); |
744 | } | |
745 | ||
1c14df9e | 746 | void |
747 | bwlimit(int amount) | |
748 | { | |
749 | static struct timeval bwstart, bwend; | |
750 | static int lamt, thresh = 16384; | |
1b56ff3d | 751 | u_int64_t waitlen; |
1c14df9e | 752 | struct timespec ts, rm; |
753 | ||
754 | if (!timerisset(&bwstart)) { | |
755 | gettimeofday(&bwstart, NULL); | |
756 | return; | |
757 | } | |
758 | ||
759 | lamt += amount; | |
760 | if (lamt < thresh) | |
761 | return; | |
762 | ||
763 | gettimeofday(&bwend, NULL); | |
764 | timersub(&bwend, &bwstart, &bwend); | |
765 | if (!timerisset(&bwend)) | |
766 | return; | |
767 | ||
768 | lamt *= 8; | |
1b56ff3d | 769 | waitlen = (double)1000000L * lamt / limit_rate; |
1c14df9e | 770 | |
1b56ff3d | 771 | bwstart.tv_sec = waitlen / 1000000L; |
772 | bwstart.tv_usec = waitlen % 1000000L; | |
1c14df9e | 773 | |
774 | if (timercmp(&bwstart, &bwend, >)) { | |
775 | timersub(&bwstart, &bwend, &bwend); | |
776 | ||
777 | /* Adjust the wait time */ | |
778 | if (bwend.tv_sec) { | |
779 | thresh /= 2; | |
780 | if (thresh < 2048) | |
781 | thresh = 2048; | |
782 | } else if (bwend.tv_usec < 100) { | |
783 | thresh *= 2; | |
784 | if (thresh > 32768) | |
785 | thresh = 32768; | |
786 | } | |
787 | ||
788 | TIMEVAL_TO_TIMESPEC(&bwend, &ts); | |
789 | while (nanosleep(&ts, &rm) == -1) { | |
790 | if (errno != EINTR) | |
791 | break; | |
792 | ts = rm; | |
793 | } | |
794 | } | |
795 | ||
796 | lamt = 0; | |
797 | gettimeofday(&bwstart, NULL); | |
798 | } | |
799 | ||
3c0ef626 | 800 | void |
70791e56 | 801 | sink(int argc, char **argv) |
3c0ef626 | 802 | { |
803 | static BUF buffer; | |
804 | struct stat stb; | |
805 | enum { | |
806 | YES, NO, DISPLAYED | |
807 | } wrerr; | |
808 | BUF *bp; | |
34fee935 | 809 | off_t i; |
810 | size_t j, count; | |
2e437378 | 811 | int amt, exists, first, ofd; |
812 | mode_t mode, omode, mask; | |
1c14df9e | 813 | off_t size, statbytes; |
3c0ef626 | 814 | int setimes, targisdir, wrerrno = 0; |
34fee935 | 815 | char ch, *cp, *np, *targ, *why, *vect[1], buf[16384]; |
3c0ef626 | 816 | struct timeval tv[2]; |
817 | ||
818 | #define atime tv[0] | |
819 | #define mtime tv[1] | |
34fee935 | 820 | #define SCREWUP(str) { why = str; goto screwup; } |
3c0ef626 | 821 | |
822 | setimes = targisdir = 0; | |
823 | mask = umask(0); | |
824 | if (!pflag) | |
825 | (void) umask(mask); | |
826 | if (argc != 1) { | |
827 | run_err("ambiguous target"); | |
828 | exit(1); | |
829 | } | |
830 | targ = *argv; | |
831 | if (targetshouldbedirectory) | |
832 | verifydir(targ); | |
833 | ||
70791e56 | 834 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 835 | if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) |
836 | targisdir = 1; | |
837 | for (first = 1;; first = 0) { | |
838 | cp = buf; | |
34fee935 | 839 | if (atomicio(read, remin, cp, 1) != 1) |
3c0ef626 | 840 | return; |
841 | if (*cp++ == '\n') | |
842 | SCREWUP("unexpected <newline>"); | |
843 | do { | |
844 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) | |
845 | SCREWUP("lost connection"); | |
846 | *cp++ = ch; | |
847 | } while (cp < &buf[sizeof(buf) - 1] && ch != '\n'); | |
848 | *cp = 0; | |
1b56ff3d | 849 | if (verbose_mode) |
850 | fprintf(stderr, "Sink: %s", buf); | |
3c0ef626 | 851 | |
852 | if (buf[0] == '\01' || buf[0] == '\02') { | |
853 | if (iamremote == 0) | |
70791e56 | 854 | (void) atomicio(vwrite, STDERR_FILENO, |
3c0ef626 | 855 | buf + 1, strlen(buf + 1)); |
856 | if (buf[0] == '\02') | |
857 | exit(1); | |
858 | ++errs; | |
859 | continue; | |
860 | } | |
861 | if (buf[0] == 'E') { | |
70791e56 | 862 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 863 | return; |
864 | } | |
865 | if (ch == '\n') | |
866 | *--cp = 0; | |
867 | ||
868 | cp = buf; | |
869 | if (*cp == 'T') { | |
870 | setimes++; | |
871 | cp++; | |
872 | mtime.tv_sec = strtol(cp, &cp, 10); | |
873 | if (!cp || *cp++ != ' ') | |
874 | SCREWUP("mtime.sec not delimited"); | |
875 | mtime.tv_usec = strtol(cp, &cp, 10); | |
876 | if (!cp || *cp++ != ' ') | |
877 | SCREWUP("mtime.usec not delimited"); | |
878 | atime.tv_sec = strtol(cp, &cp, 10); | |
879 | if (!cp || *cp++ != ' ') | |
880 | SCREWUP("atime.sec not delimited"); | |
881 | atime.tv_usec = strtol(cp, &cp, 10); | |
882 | if (!cp || *cp++ != '\0') | |
883 | SCREWUP("atime.usec not delimited"); | |
70791e56 | 884 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 885 | continue; |
886 | } | |
887 | if (*cp != 'C' && *cp != 'D') { | |
888 | /* | |
889 | * Check for the case "rcp remote:foo\* local:bar". | |
890 | * In this case, the line "No match." can be returned | |
891 | * by the shell before the rcp command on the remote is | |
892 | * executed so the ^Aerror_message convention isn't | |
893 | * followed. | |
894 | */ | |
895 | if (first) { | |
896 | run_err("%s", cp); | |
897 | exit(1); | |
898 | } | |
899 | SCREWUP("expected control record"); | |
900 | } | |
901 | mode = 0; | |
902 | for (++cp; cp < buf + 5; cp++) { | |
903 | if (*cp < '0' || *cp > '7') | |
904 | SCREWUP("bad mode"); | |
905 | mode = (mode << 3) | (*cp - '0'); | |
906 | } | |
907 | if (*cp++ != ' ') | |
908 | SCREWUP("mode not delimited"); | |
909 | ||
910 | for (size = 0; isdigit(*cp);) | |
911 | size = size * 10 + (*cp++ - '0'); | |
912 | if (*cp++ != ' ') | |
913 | SCREWUP("size not delimited"); | |
1b56ff3d | 914 | if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) { |
915 | run_err("error: unexpected filename: %s", cp); | |
916 | exit(1); | |
917 | } | |
3c0ef626 | 918 | if (targisdir) { |
919 | static char *namebuf; | |
34fee935 | 920 | static size_t cursize; |
3c0ef626 | 921 | size_t need; |
922 | ||
923 | need = strlen(targ) + strlen(cp) + 250; | |
924 | if (need > cursize) { | |
925 | if (namebuf) | |
926 | xfree(namebuf); | |
927 | namebuf = xmalloc(need); | |
928 | cursize = need; | |
929 | } | |
930 | (void) snprintf(namebuf, need, "%s%s%s", targ, | |
2980ea68 | 931 | strcmp(targ, "/") ? "/" : "", cp); |
3c0ef626 | 932 | np = namebuf; |
933 | } else | |
934 | np = targ; | |
935 | curfile = cp; | |
936 | exists = stat(np, &stb) == 0; | |
937 | if (buf[0] == 'D') { | |
938 | int mod_flag = pflag; | |
1b56ff3d | 939 | if (!iamrecursive) |
940 | SCREWUP("received directory without -r"); | |
3c0ef626 | 941 | if (exists) { |
942 | if (!S_ISDIR(stb.st_mode)) { | |
943 | errno = ENOTDIR; | |
944 | goto bad; | |
945 | } | |
946 | if (pflag) | |
947 | (void) chmod(np, mode); | |
948 | } else { | |
949 | /* Handle copying from a read-only | |
950 | directory */ | |
951 | mod_flag = 1; | |
952 | if (mkdir(np, mode | S_IRWXU) < 0) | |
953 | goto bad; | |
954 | } | |
955 | vect[0] = xstrdup(np); | |
956 | sink(1, vect); | |
957 | if (setimes) { | |
958 | setimes = 0; | |
959 | if (utimes(vect[0], tv) < 0) | |
960 | run_err("%s: set times: %s", | |
961 | vect[0], strerror(errno)); | |
962 | } | |
963 | if (mod_flag) | |
964 | (void) chmod(vect[0], mode); | |
965 | if (vect[0]) | |
966 | xfree(vect[0]); | |
967 | continue; | |
968 | } | |
969 | omode = mode; | |
970 | mode |= S_IWRITE; | |
971 | if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { | |
972 | bad: run_err("%s: %s", np, strerror(errno)); | |
973 | continue; | |
974 | } | |
70791e56 | 975 | (void) atomicio(vwrite, remout, "", 1); |
34fee935 | 976 | if ((bp = allocbuf(&buffer, ofd, sizeof(buf))) == NULL) { |
3c0ef626 | 977 | (void) close(ofd); |
978 | continue; | |
979 | } | |
980 | cp = bp->buf; | |
981 | wrerr = NO; | |
982 | ||
3c0ef626 | 983 | statbytes = 0; |
1c14df9e | 984 | if (showprogress) |
985 | start_progress_meter(curfile, size, &statbytes); | |
34fee935 | 986 | for (count = i = 0; i < size; i += sizeof(buf)) { |
987 | amt = sizeof(buf); | |
3c0ef626 | 988 | if (i + amt > size) |
989 | amt = size - i; | |
990 | count += amt; | |
991 | do { | |
1b56ff3d | 992 | j = atomicio(read, remin, cp, amt); |
34fee935 | 993 | if (j == 0) { |
3c0ef626 | 994 | run_err("%s", j ? strerror(errno) : |
995 | "dropped connection"); | |
996 | exit(1); | |
997 | } | |
998 | amt -= j; | |
999 | cp += j; | |
1000 | statbytes += j; | |
1001 | } while (amt > 0); | |
416fd2a8 | 1002 | |
1003 | if (limit_rate) | |
34fee935 | 1004 | bwlimit(sizeof(buf)); |
1c14df9e | 1005 | |
3c0ef626 | 1006 | if (count == bp->cnt) { |
1007 | /* Keep reading so we stay sync'd up. */ | |
1008 | if (wrerr == NO) { | |
34fee935 | 1009 | if (atomicio(vwrite, ofd, bp->buf, |
1010 | count) != count) { | |
3c0ef626 | 1011 | wrerr = YES; |
34fee935 | 1012 | wrerrno = errno; |
3c0ef626 | 1013 | } |
1014 | } | |
1015 | count = 0; | |
1016 | cp = bp->buf; | |
1017 | } | |
1018 | } | |
1019 | if (showprogress) | |
1c14df9e | 1020 | stop_progress_meter(); |
3c0ef626 | 1021 | if (count != 0 && wrerr == NO && |
34fee935 | 1022 | atomicio(vwrite, ofd, bp->buf, count) != count) { |
3c0ef626 | 1023 | wrerr = YES; |
34fee935 | 1024 | wrerrno = errno; |
3c0ef626 | 1025 | } |
1c14df9e | 1026 | if (wrerr == NO && ftruncate(ofd, size) != 0) { |
3c0ef626 | 1027 | run_err("%s: truncate: %s", np, strerror(errno)); |
1028 | wrerr = DISPLAYED; | |
1029 | } | |
1030 | if (pflag) { | |
1031 | if (exists || omode != mode) | |
1032 | #ifdef HAVE_FCHMOD | |
1b56ff3d | 1033 | if (fchmod(ofd, omode)) { |
3c0ef626 | 1034 | #else /* HAVE_FCHMOD */ |
1b56ff3d | 1035 | if (chmod(np, omode)) { |
3c0ef626 | 1036 | #endif /* HAVE_FCHMOD */ |
1037 | run_err("%s: set mode: %s", | |
1038 | np, strerror(errno)); | |
1b56ff3d | 1039 | wrerr = DISPLAYED; |
1040 | } | |
3c0ef626 | 1041 | } else { |
1042 | if (!exists && omode != mode) | |
1043 | #ifdef HAVE_FCHMOD | |
1b56ff3d | 1044 | if (fchmod(ofd, omode & ~mask)) { |
3c0ef626 | 1045 | #else /* HAVE_FCHMOD */ |
1b56ff3d | 1046 | if (chmod(np, omode & ~mask)) { |
3c0ef626 | 1047 | #endif /* HAVE_FCHMOD */ |
1048 | run_err("%s: set mode: %s", | |
1049 | np, strerror(errno)); | |
1b56ff3d | 1050 | wrerr = DISPLAYED; |
1051 | } | |
3c0ef626 | 1052 | } |
1053 | if (close(ofd) == -1) { | |
1054 | wrerr = YES; | |
1055 | wrerrno = errno; | |
1056 | } | |
1057 | (void) response(); | |
1058 | if (setimes && wrerr == NO) { | |
1059 | setimes = 0; | |
1060 | if (utimes(np, tv) < 0) { | |
1061 | run_err("%s: set times: %s", | |
1062 | np, strerror(errno)); | |
1063 | wrerr = DISPLAYED; | |
1064 | } | |
1065 | } | |
1066 | switch (wrerr) { | |
1067 | case YES: | |
1068 | run_err("%s: %s", np, strerror(wrerrno)); | |
1069 | break; | |
1070 | case NO: | |
70791e56 | 1071 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 1072 | break; |
1073 | case DISPLAYED: | |
1074 | break; | |
1075 | } | |
1076 | } | |
1077 | screwup: | |
1078 | run_err("protocol error: %s", why); | |
1079 | exit(1); | |
1080 | } | |
1081 | ||
1082 | int | |
e9a17296 | 1083 | response(void) |
3c0ef626 | 1084 | { |
1085 | char ch, *cp, resp, rbuf[2048]; | |
1086 | ||
1087 | if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp)) | |
1088 | lostconn(0); | |
1089 | ||
1090 | cp = rbuf; | |
1091 | switch (resp) { | |
1092 | case 0: /* ok */ | |
1093 | return (0); | |
1094 | default: | |
1095 | *cp++ = resp; | |
1096 | /* FALLTHROUGH */ | |
1097 | case 1: /* error, followed by error msg */ | |
1098 | case 2: /* fatal error, "" */ | |
1099 | do { | |
1100 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) | |
1101 | lostconn(0); | |
1102 | *cp++ = ch; | |
1103 | } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n'); | |
1104 | ||
1105 | if (!iamremote) | |
70791e56 | 1106 | (void) atomicio(vwrite, STDERR_FILENO, rbuf, cp - rbuf); |
3c0ef626 | 1107 | ++errs; |
1108 | if (resp == 1) | |
1109 | return (-1); | |
1110 | exit(1); | |
1111 | } | |
1112 | /* NOTREACHED */ | |
1113 | } | |
1114 | ||
1115 | void | |
e9a17296 | 1116 | usage(void) |
3c0ef626 | 1117 | { |
1118 | (void) fprintf(stderr, | |
416fd2a8 | 1119 | "usage: scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]\n" |
2e437378 | 1120 | " [-l limit] [-o ssh_option] [-P port] [-S program]\n" |
ff2d7a98 | 1121 | " [[user@]host1:]file1 [...] [[user@]host2:]file2\n"); |
3c0ef626 | 1122 | exit(1); |
1123 | } | |
1124 | ||
1125 | void | |
1126 | run_err(const char *fmt,...) | |
1127 | { | |
1128 | static FILE *fp; | |
1129 | va_list ap; | |
1130 | ||
1131 | ++errs; | |
2e437378 | 1132 | if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) { |
1133 | (void) fprintf(fp, "%c", 0x01); | |
1134 | (void) fprintf(fp, "scp: "); | |
1135 | va_start(ap, fmt); | |
1136 | (void) vfprintf(fp, fmt, ap); | |
1137 | va_end(ap); | |
1138 | (void) fprintf(fp, "\n"); | |
1139 | (void) fflush(fp); | |
1140 | } | |
3c0ef626 | 1141 | |
1142 | if (!iamremote) { | |
1143 | va_start(ap, fmt); | |
1144 | vfprintf(stderr, fmt, ap); | |
1145 | va_end(ap); | |
1146 | fprintf(stderr, "\n"); | |
1147 | } | |
1148 | } | |
1149 | ||
1150 | void | |
70791e56 | 1151 | verifydir(char *cp) |
3c0ef626 | 1152 | { |
1153 | struct stat stb; | |
1154 | ||
1155 | if (!stat(cp, &stb)) { | |
1156 | if (S_ISDIR(stb.st_mode)) | |
1157 | return; | |
1158 | errno = ENOTDIR; | |
1159 | } | |
1160 | run_err("%s: %s", cp, strerror(errno)); | |
34fee935 | 1161 | killchild(0); |
3c0ef626 | 1162 | } |
1163 | ||
1164 | int | |
70791e56 | 1165 | okname(char *cp0) |
3c0ef626 | 1166 | { |
1167 | int c; | |
1168 | char *cp; | |
1169 | ||
1170 | cp = cp0; | |
1171 | do { | |
1172 | c = (int)*cp; | |
1173 | if (c & 0200) | |
1174 | goto bad; | |
1c14df9e | 1175 | if (!isalpha(c) && !isdigit(c)) { |
1176 | switch (c) { | |
1177 | case '\'': | |
1178 | case '"': | |
1179 | case '`': | |
1180 | case ' ': | |
1181 | case '#': | |
1182 | goto bad; | |
1183 | default: | |
1184 | break; | |
1185 | } | |
1186 | } | |
3c0ef626 | 1187 | } while (*++cp); |
1188 | return (1); | |
1189 | ||
1190 | bad: fprintf(stderr, "%s: invalid user name\n", cp0); | |
1191 | return (0); | |
1192 | } | |
1193 | ||
1194 | BUF * | |
70791e56 | 1195 | allocbuf(BUF *bp, int fd, int blksize) |
3c0ef626 | 1196 | { |
1197 | size_t size; | |
1198 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE | |
1199 | struct stat stb; | |
1200 | ||
1201 | if (fstat(fd, &stb) < 0) { | |
1202 | run_err("fstat: %s", strerror(errno)); | |
1203 | return (0); | |
1204 | } | |
1c14df9e | 1205 | size = roundup(stb.st_blksize, blksize); |
1206 | if (size == 0) | |
3c0ef626 | 1207 | size = blksize; |
3c0ef626 | 1208 | #else /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
1209 | size = blksize; | |
1210 | #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */ | |
1211 | if (bp->cnt >= size) | |
1212 | return (bp); | |
1213 | if (bp->buf == NULL) | |
1214 | bp->buf = xmalloc(size); | |
1215 | else | |
2e437378 | 1216 | bp->buf = xrealloc(bp->buf, 1, size); |
3c0ef626 | 1217 | memset(bp->buf, 0, size); |
1218 | bp->cnt = size; | |
1219 | return (bp); | |
1220 | } | |
1221 | ||
1222 | void | |
70791e56 | 1223 | lostconn(int signo) |
3c0ef626 | 1224 | { |
1225 | if (!iamremote) | |
1226 | write(STDERR_FILENO, "lost connection\n", 16); | |
1227 | if (signo) | |
1228 | _exit(1); | |
1229 | else | |
1230 | exit(1); | |
1231 | } |