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9108f8d9 | 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. | |
0fff78ff | 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" | |
9108f8d9 | 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" | |
6a9b3198 | 105 | #include "progressmeter.h" |
3c0ef626 | 106 | |
3c0ef626 | 107 | extern char *__progname; |
3c0ef626 | 108 | |
9108f8d9 | 109 | int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout); |
110 | ||
6a9b3198 | 111 | void bwlimit(int); |
3c0ef626 | 112 | |
113 | /* Struct for addargs */ | |
114 | arglist args; | |
115 | ||
6a9b3198 | 116 | /* Bandwidth limit */ |
cdd66111 | 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) */ | |
129 | char *ssh_program = _PATH_SSH_PROGRAM; | |
130 | ||
6a9b3198 | 131 | /* This is used to store the pid of ssh_program */ |
0fff78ff | 132 | pid_t do_cmd_pid = -1; |
133 | ||
134 | static void | |
135 | killchild(int signo) | |
136 | { | |
996d5e62 | 137 | if (do_cmd_pid > 1) { |
665a873d | 138 | kill(do_cmd_pid, signo ? signo : SIGTERM); |
996d5e62 | 139 | waitpid(do_cmd_pid, NULL, 0); |
140 | } | |
0fff78ff | 141 | |
665a873d | 142 | if (signo) |
143 | _exit(1); | |
144 | exit(1); | |
0fff78ff | 145 | } |
6a9b3198 | 146 | |
2c06c99b | 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 | |
9108f8d9 | 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 | */ | |
9108f8d9 | 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 | ||
0fff78ff | 223 | /* Fork a child to execute the command on the remote host using ssh. */ |
6a9b3198 | 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 | ||
2c06c99b | 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); | |
6a9b3198 | 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]; | |
0fff78ff | 251 | signal(SIGTERM, killchild); |
252 | signal(SIGINT, killchild); | |
253 | signal(SIGHUP, killchild); | |
3c0ef626 | 254 | return 0; |
255 | } | |
256 | ||
257 | typedef struct { | |
665a873d | 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 | |
0fff78ff | 285 | main(int argc, char **argv) |
3c0ef626 | 286 | { |
9108f8d9 | 287 | int ch, fflag, tflag, status, n; |
6a9b3198 | 288 | double speed; |
9108f8d9 | 289 | char *targ, *endp, **newargv; |
3c0ef626 | 290 | extern char *optarg; |
291 | extern int optind; | |
292 | ||
2c06c99b | 293 | /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
294 | sanitise_stdfd(); | |
295 | ||
9108f8d9 | 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 | ||
0fff78ff | 302 | __progname = ssh_get_progname(argv[0]); |
3c0ef626 | 303 | |
2c06c99b | 304 | memset(&args, '\0', sizeof(args)); |
3c0ef626 | 305 | args.list = NULL; |
2c06c99b | 306 | addargs(&args, "%s", ssh_program); |
3c0ef626 | 307 | addargs(&args, "-x"); |
308 | addargs(&args, "-oForwardAgent no"); | |
2c06c99b | 309 | addargs(&args, "-oPermitLocalCommand no"); |
3c0ef626 | 310 | addargs(&args, "-oClearAllForwardings yes"); |
311 | ||
312 | fflag = tflag = 0; | |
6a9b3198 | 313 | while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q1246S:o:F:")) != -1) |
3c0ef626 | 314 | switch (ch) { |
315 | /* User-visible flags. */ | |
6a9b3198 | 316 | case '1': |
317 | case '2': | |
3c0ef626 | 318 | case '4': |
319 | case '6': | |
320 | case 'C': | |
321 | addargs(&args, "-%c", ch); | |
322 | break; | |
323 | case 'o': | |
324 | case 'c': | |
325 | case 'i': | |
326 | case 'F': | |
327 | addargs(&args, "-%c%s", ch, optarg); | |
328 | break; | |
329 | case 'P': | |
330 | addargs(&args, "-p%s", optarg); | |
331 | break; | |
332 | case 'B': | |
333 | addargs(&args, "-oBatchmode yes"); | |
334 | break; | |
6a9b3198 | 335 | case 'l': |
336 | speed = strtod(optarg, &endp); | |
337 | if (speed <= 0 || *endp != '\0') | |
338 | usage(); | |
cdd66111 | 339 | limit_rate = speed * 1024; |
6a9b3198 | 340 | break; |
3c0ef626 | 341 | case 'p': |
342 | pflag = 1; | |
343 | break; | |
344 | case 'r': | |
345 | iamrecursive = 1; | |
346 | break; | |
347 | case 'S': | |
348 | ssh_program = xstrdup(optarg); | |
349 | break; | |
350 | case 'v': | |
351 | addargs(&args, "-v"); | |
352 | verbose_mode = 1; | |
353 | break; | |
354 | case 'q': | |
cdd66111 | 355 | addargs(&args, "-q"); |
3c0ef626 | 356 | showprogress = 0; |
357 | break; | |
358 | ||
359 | /* Server options. */ | |
360 | case 'd': | |
361 | targetshouldbedirectory = 1; | |
362 | break; | |
363 | case 'f': /* "from" */ | |
364 | iamremote = 1; | |
365 | fflag = 1; | |
366 | break; | |
367 | case 't': /* "to" */ | |
368 | iamremote = 1; | |
369 | tflag = 1; | |
370 | #ifdef HAVE_CYGWIN | |
371 | setmode(0, O_BINARY); | |
372 | #endif | |
373 | break; | |
374 | default: | |
375 | usage(); | |
376 | } | |
377 | argc -= optind; | |
378 | argv += optind; | |
379 | ||
380 | if ((pwd = getpwuid(userid = getuid())) == NULL) | |
0fff78ff | 381 | fatal("unknown user %u", (u_int) userid); |
3c0ef626 | 382 | |
383 | if (!isatty(STDERR_FILENO)) | |
384 | showprogress = 0; | |
385 | ||
386 | remin = STDIN_FILENO; | |
387 | remout = STDOUT_FILENO; | |
388 | ||
389 | if (fflag) { | |
390 | /* Follow "protocol", send data. */ | |
391 | (void) response(); | |
392 | source(argc, argv); | |
393 | exit(errs != 0); | |
394 | } | |
395 | if (tflag) { | |
396 | /* Receive data. */ | |
397 | sink(argc, argv); | |
398 | exit(errs != 0); | |
399 | } | |
400 | if (argc < 2) | |
401 | usage(); | |
402 | if (argc > 2) | |
403 | targetshouldbedirectory = 1; | |
404 | ||
405 | remin = remout = -1; | |
6a9b3198 | 406 | do_cmd_pid = -1; |
3c0ef626 | 407 | /* Command to be executed on remote system using "ssh". */ |
408 | (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s", | |
409 | verbose_mode ? " -v" : "", | |
410 | iamrecursive ? " -r" : "", pflag ? " -p" : "", | |
411 | targetshouldbedirectory ? " -d" : ""); | |
412 | ||
413 | (void) signal(SIGPIPE, lostconn); | |
414 | ||
415 | if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */ | |
416 | toremote(targ, argc, argv); | |
417 | else { | |
3c0ef626 | 418 | if (targetshouldbedirectory) |
419 | verifydir(argv[argc - 1]); | |
2c06c99b | 420 | tolocal(argc, argv); /* Dest is local host. */ |
3c0ef626 | 421 | } |
6a9b3198 | 422 | /* |
423 | * Finally check the exit status of the ssh process, if one was forked | |
424 | * and no error has occured yet | |
425 | */ | |
426 | if (do_cmd_pid != -1 && errs == 0) { | |
427 | if (remin != -1) | |
428 | (void) close(remin); | |
429 | if (remout != -1) | |
430 | (void) close(remout); | |
431 | if (waitpid(do_cmd_pid, &status, 0) == -1) | |
432 | errs = 1; | |
433 | else { | |
434 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
435 | errs = 1; | |
436 | } | |
437 | } | |
3c0ef626 | 438 | exit(errs != 0); |
439 | } | |
440 | ||
441 | void | |
0fff78ff | 442 | toremote(char *targ, int argc, char **argv) |
3c0ef626 | 443 | { |
dec6d9fe | 444 | char *bp, *host, *src, *suser, *thost, *tuser, *arg; |
2c06c99b | 445 | arglist alist; |
9108f8d9 | 446 | int i; |
2c06c99b | 447 | |
448 | memset(&alist, '\0', sizeof(alist)); | |
449 | alist.list = NULL; | |
3c0ef626 | 450 | |
451 | *targ++ = 0; | |
452 | if (*targ == 0) | |
453 | targ = "."; | |
454 | ||
dec6d9fe | 455 | arg = xstrdup(argv[argc - 1]); |
456 | if ((thost = strrchr(arg, '@'))) { | |
3c0ef626 | 457 | /* user@host */ |
458 | *thost++ = 0; | |
dec6d9fe | 459 | tuser = arg; |
3c0ef626 | 460 | if (*tuser == '\0') |
461 | tuser = NULL; | |
3c0ef626 | 462 | } else { |
dec6d9fe | 463 | thost = arg; |
3c0ef626 | 464 | tuser = NULL; |
465 | } | |
466 | ||
2c06c99b | 467 | if (tuser != NULL && !okname(tuser)) { |
468 | xfree(arg); | |
469 | return; | |
470 | } | |
471 | ||
3c0ef626 | 472 | for (i = 0; i < argc - 1; i++) { |
473 | src = colon(argv[i]); | |
474 | if (src) { /* remote to remote */ | |
2c06c99b | 475 | freeargs(&alist); |
476 | addargs(&alist, "%s", ssh_program); | |
477 | if (verbose_mode) | |
478 | addargs(&alist, "-v"); | |
479 | addargs(&alist, "-x"); | |
480 | addargs(&alist, "-oClearAllForwardings yes"); | |
481 | addargs(&alist, "-n"); | |
482 | ||
3c0ef626 | 483 | *src++ = 0; |
484 | if (*src == 0) | |
485 | src = "."; | |
6a9b3198 | 486 | host = strrchr(argv[i], '@'); |
2c06c99b | 487 | |
3c0ef626 | 488 | if (host) { |
489 | *host++ = 0; | |
490 | host = cleanhostname(host); | |
491 | suser = argv[i]; | |
492 | if (*suser == '\0') | |
493 | suser = pwd->pw_name; | |
2c06c99b | 494 | else if (!okname(suser)) |
3c0ef626 | 495 | continue; |
2c06c99b | 496 | addargs(&alist, "-l"); |
497 | addargs(&alist, "%s", suser); | |
3c0ef626 | 498 | } else { |
499 | host = cleanhostname(argv[i]); | |
3c0ef626 | 500 | } |
2c06c99b | 501 | addargs(&alist, "%s", host); |
502 | addargs(&alist, "%s", cmd); | |
503 | addargs(&alist, "%s", src); | |
504 | addargs(&alist, "%s%s%s:%s", | |
505 | tuser ? tuser : "", tuser ? "@" : "", | |
506 | thost, targ); | |
507 | if (do_local_cmd(&alist) != 0) | |
cdd66111 | 508 | errs = 1; |
3c0ef626 | 509 | } else { /* local to remote */ |
510 | if (remin == -1) { | |
9108f8d9 | 511 | xasprintf(&bp, "%s -t %s", cmd, targ); |
3c0ef626 | 512 | host = cleanhostname(thost); |
513 | if (do_cmd(host, tuser, bp, &remin, | |
9108f8d9 | 514 | &remout) < 0) |
3c0ef626 | 515 | exit(1); |
516 | if (response() < 0) | |
517 | exit(1); | |
518 | (void) xfree(bp); | |
519 | } | |
520 | source(1, argv + i); | |
521 | } | |
522 | } | |
9108f8d9 | 523 | xfree(arg); |
3c0ef626 | 524 | } |
525 | ||
526 | void | |
0fff78ff | 527 | tolocal(int argc, char **argv) |
3c0ef626 | 528 | { |
3c0ef626 | 529 | char *bp, *host, *src, *suser; |
2c06c99b | 530 | arglist alist; |
9108f8d9 | 531 | int i; |
2c06c99b | 532 | |
533 | memset(&alist, '\0', sizeof(alist)); | |
534 | alist.list = NULL; | |
3c0ef626 | 535 | |
536 | for (i = 0; i < argc - 1; i++) { | |
537 | if (!(src = colon(argv[i]))) { /* Local to local. */ | |
2c06c99b | 538 | freeargs(&alist); |
539 | addargs(&alist, "%s", _PATH_CP); | |
540 | if (iamrecursive) | |
541 | addargs(&alist, "-r"); | |
542 | if (pflag) | |
543 | addargs(&alist, "-p"); | |
544 | addargs(&alist, "%s", argv[i]); | |
545 | addargs(&alist, "%s", argv[argc-1]); | |
546 | if (do_local_cmd(&alist)) | |
3c0ef626 | 547 | ++errs; |
3c0ef626 | 548 | continue; |
549 | } | |
550 | *src++ = 0; | |
551 | if (*src == 0) | |
552 | src = "."; | |
6a9b3198 | 553 | if ((host = strrchr(argv[i], '@')) == NULL) { |
3c0ef626 | 554 | host = argv[i]; |
555 | suser = NULL; | |
556 | } else { | |
557 | *host++ = 0; | |
558 | suser = argv[i]; | |
559 | if (*suser == '\0') | |
560 | suser = pwd->pw_name; | |
3c0ef626 | 561 | } |
562 | host = cleanhostname(host); | |
9108f8d9 | 563 | xasprintf(&bp, "%s -f %s", cmd, src); |
564 | if (do_cmd(host, suser, bp, &remin, &remout) < 0) { | |
3c0ef626 | 565 | (void) xfree(bp); |
566 | ++errs; | |
567 | continue; | |
568 | } | |
569 | xfree(bp); | |
570 | sink(1, argv + argc - 1); | |
571 | (void) close(remin); | |
572 | remin = remout = -1; | |
573 | } | |
574 | } | |
575 | ||
576 | void | |
0fff78ff | 577 | source(int argc, char **argv) |
3c0ef626 | 578 | { |
579 | struct stat stb; | |
580 | static BUF buffer; | |
581 | BUF *bp; | |
665a873d | 582 | off_t i, amt, statbytes; |
583 | size_t result; | |
584 | int fd = -1, haderr, indx; | |
3c0ef626 | 585 | char *last, *name, buf[2048]; |
586 | int len; | |
587 | ||
588 | for (indx = 0; indx < argc; ++indx) { | |
589 | name = argv[indx]; | |
590 | statbytes = 0; | |
591 | len = strlen(name); | |
592 | while (len > 1 && name[len-1] == '/') | |
593 | name[--len] = '\0'; | |
594 | if (strchr(name, '\n') != NULL) { | |
595 | run_err("%s: skipping, filename contains a newline", | |
596 | name); | |
597 | goto next; | |
598 | } | |
599 | if ((fd = open(name, O_RDONLY, 0)) < 0) | |
600 | goto syserr; | |
601 | if (fstat(fd, &stb) < 0) { | |
602 | syserr: run_err("%s: %s", name, strerror(errno)); | |
603 | goto next; | |
604 | } | |
605 | switch (stb.st_mode & S_IFMT) { | |
606 | case S_IFREG: | |
607 | break; | |
608 | case S_IFDIR: | |
609 | if (iamrecursive) { | |
610 | rsource(name, &stb); | |
611 | goto next; | |
612 | } | |
613 | /* FALLTHROUGH */ | |
614 | default: | |
615 | run_err("%s: not a regular file", name); | |
616 | goto next; | |
617 | } | |
618 | if ((last = strrchr(name, '/')) == NULL) | |
619 | last = name; | |
620 | else | |
621 | ++last; | |
622 | curfile = last; | |
623 | if (pflag) { | |
624 | /* | |
625 | * Make it compatible with possible future | |
626 | * versions expecting microseconds. | |
627 | */ | |
628 | (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n", | |
629 | (u_long) stb.st_mtime, | |
630 | (u_long) stb.st_atime); | |
0fff78ff | 631 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
3c0ef626 | 632 | if (response() < 0) |
633 | goto next; | |
634 | } | |
635 | #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) | |
3c0ef626 | 636 | snprintf(buf, sizeof buf, "C%04o %lld %s\n", |
637 | (u_int) (stb.st_mode & FILEMODEMASK), | |
2c06c99b | 638 | (long long)stb.st_size, last); |
3c0ef626 | 639 | if (verbose_mode) { |
640 | fprintf(stderr, "Sending file modes: %s", buf); | |
3c0ef626 | 641 | } |
0fff78ff | 642 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
3c0ef626 | 643 | if (response() < 0) |
644 | goto next; | |
645 | if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) { | |
2c06c99b | 646 | next: if (fd != -1) { |
647 | (void) close(fd); | |
648 | fd = -1; | |
649 | } | |
3c0ef626 | 650 | continue; |
651 | } | |
6a9b3198 | 652 | if (showprogress) |
653 | start_progress_meter(curfile, stb.st_size, &statbytes); | |
3c0ef626 | 654 | /* Keep writing after an error so that we stay sync'd up. */ |
655 | for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { | |
656 | amt = bp->cnt; | |
657 | if (i + amt > stb.st_size) | |
658 | amt = stb.st_size - i; | |
659 | if (!haderr) { | |
660 | result = atomicio(read, fd, bp->buf, amt); | |
661 | if (result != amt) | |
665a873d | 662 | haderr = errno; |
3c0ef626 | 663 | } |
664 | if (haderr) | |
0fff78ff | 665 | (void) atomicio(vwrite, remout, bp->buf, amt); |
3c0ef626 | 666 | else { |
0fff78ff | 667 | result = atomicio(vwrite, remout, bp->buf, amt); |
3c0ef626 | 668 | if (result != amt) |
665a873d | 669 | haderr = errno; |
3c0ef626 | 670 | statbytes += result; |
671 | } | |
cdd66111 | 672 | if (limit_rate) |
6a9b3198 | 673 | bwlimit(amt); |
3c0ef626 | 674 | } |
675 | if (showprogress) | |
6a9b3198 | 676 | stop_progress_meter(); |
3c0ef626 | 677 | |
2c06c99b | 678 | if (fd != -1) { |
679 | if (close(fd) < 0 && !haderr) | |
680 | haderr = errno; | |
681 | fd = -1; | |
682 | } | |
3c0ef626 | 683 | if (!haderr) |
0fff78ff | 684 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 685 | else |
686 | run_err("%s: %s", name, strerror(haderr)); | |
687 | (void) response(); | |
688 | } | |
689 | } | |
690 | ||
691 | void | |
0fff78ff | 692 | rsource(char *name, struct stat *statp) |
3c0ef626 | 693 | { |
694 | DIR *dirp; | |
695 | struct dirent *dp; | |
696 | char *last, *vect[1], path[1100]; | |
697 | ||
698 | if (!(dirp = opendir(name))) { | |
699 | run_err("%s: %s", name, strerror(errno)); | |
700 | return; | |
701 | } | |
702 | last = strrchr(name, '/'); | |
703 | if (last == 0) | |
704 | last = name; | |
705 | else | |
706 | last++; | |
707 | if (pflag) { | |
708 | (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n", | |
709 | (u_long) statp->st_mtime, | |
710 | (u_long) statp->st_atime); | |
0fff78ff | 711 | (void) atomicio(vwrite, remout, path, strlen(path)); |
3c0ef626 | 712 | if (response() < 0) { |
713 | closedir(dirp); | |
714 | return; | |
715 | } | |
716 | } | |
717 | (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n", | |
718 | (u_int) (statp->st_mode & FILEMODEMASK), 0, last); | |
719 | if (verbose_mode) | |
720 | fprintf(stderr, "Entering directory: %s", path); | |
0fff78ff | 721 | (void) atomicio(vwrite, remout, path, strlen(path)); |
3c0ef626 | 722 | if (response() < 0) { |
723 | closedir(dirp); | |
724 | return; | |
725 | } | |
726 | while ((dp = readdir(dirp)) != NULL) { | |
727 | if (dp->d_ino == 0) | |
728 | continue; | |
729 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) | |
730 | continue; | |
731 | if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) { | |
732 | run_err("%s/%s: name too long", name, dp->d_name); | |
733 | continue; | |
734 | } | |
735 | (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name); | |
736 | vect[0] = path; | |
737 | source(1, vect); | |
738 | } | |
739 | (void) closedir(dirp); | |
0fff78ff | 740 | (void) atomicio(vwrite, remout, "E\n", 2); |
3c0ef626 | 741 | (void) response(); |
742 | } | |
743 | ||
6a9b3198 | 744 | void |
745 | bwlimit(int amount) | |
746 | { | |
747 | static struct timeval bwstart, bwend; | |
748 | static int lamt, thresh = 16384; | |
c9f39d2c | 749 | u_int64_t waitlen; |
6a9b3198 | 750 | struct timespec ts, rm; |
751 | ||
752 | if (!timerisset(&bwstart)) { | |
753 | gettimeofday(&bwstart, NULL); | |
754 | return; | |
755 | } | |
756 | ||
757 | lamt += amount; | |
758 | if (lamt < thresh) | |
759 | return; | |
760 | ||
761 | gettimeofday(&bwend, NULL); | |
762 | timersub(&bwend, &bwstart, &bwend); | |
763 | if (!timerisset(&bwend)) | |
764 | return; | |
765 | ||
766 | lamt *= 8; | |
c9f39d2c | 767 | waitlen = (double)1000000L * lamt / limit_rate; |
6a9b3198 | 768 | |
c9f39d2c | 769 | bwstart.tv_sec = waitlen / 1000000L; |
770 | bwstart.tv_usec = waitlen % 1000000L; | |
6a9b3198 | 771 | |
772 | if (timercmp(&bwstart, &bwend, >)) { | |
773 | timersub(&bwstart, &bwend, &bwend); | |
774 | ||
775 | /* Adjust the wait time */ | |
776 | if (bwend.tv_sec) { | |
777 | thresh /= 2; | |
778 | if (thresh < 2048) | |
779 | thresh = 2048; | |
780 | } else if (bwend.tv_usec < 100) { | |
781 | thresh *= 2; | |
782 | if (thresh > 32768) | |
783 | thresh = 32768; | |
784 | } | |
785 | ||
786 | TIMEVAL_TO_TIMESPEC(&bwend, &ts); | |
787 | while (nanosleep(&ts, &rm) == -1) { | |
788 | if (errno != EINTR) | |
789 | break; | |
790 | ts = rm; | |
791 | } | |
792 | } | |
793 | ||
794 | lamt = 0; | |
795 | gettimeofday(&bwstart, NULL); | |
796 | } | |
797 | ||
3c0ef626 | 798 | void |
0fff78ff | 799 | sink(int argc, char **argv) |
3c0ef626 | 800 | { |
801 | static BUF buffer; | |
802 | struct stat stb; | |
803 | enum { | |
804 | YES, NO, DISPLAYED | |
805 | } wrerr; | |
806 | BUF *bp; | |
665a873d | 807 | off_t i; |
808 | size_t j, count; | |
9108f8d9 | 809 | int amt, exists, first, ofd; |
810 | mode_t mode, omode, mask; | |
6a9b3198 | 811 | off_t size, statbytes; |
3c0ef626 | 812 | int setimes, targisdir, wrerrno = 0; |
813 | char ch, *cp, *np, *targ, *why, *vect[1], buf[2048]; | |
814 | struct timeval tv[2]; | |
815 | ||
816 | #define atime tv[0] | |
817 | #define mtime tv[1] | |
996d5e62 | 818 | #define SCREWUP(str) { why = str; goto screwup; } |
3c0ef626 | 819 | |
820 | setimes = targisdir = 0; | |
821 | mask = umask(0); | |
822 | if (!pflag) | |
823 | (void) umask(mask); | |
824 | if (argc != 1) { | |
825 | run_err("ambiguous target"); | |
826 | exit(1); | |
827 | } | |
828 | targ = *argv; | |
829 | if (targetshouldbedirectory) | |
830 | verifydir(targ); | |
831 | ||
0fff78ff | 832 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 833 | if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) |
834 | targisdir = 1; | |
835 | for (first = 1;; first = 0) { | |
836 | cp = buf; | |
665a873d | 837 | if (atomicio(read, remin, cp, 1) != 1) |
3c0ef626 | 838 | return; |
839 | if (*cp++ == '\n') | |
840 | SCREWUP("unexpected <newline>"); | |
841 | do { | |
842 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) | |
843 | SCREWUP("lost connection"); | |
844 | *cp++ = ch; | |
845 | } while (cp < &buf[sizeof(buf) - 1] && ch != '\n'); | |
846 | *cp = 0; | |
c9f39d2c | 847 | if (verbose_mode) |
848 | fprintf(stderr, "Sink: %s", buf); | |
3c0ef626 | 849 | |
850 | if (buf[0] == '\01' || buf[0] == '\02') { | |
851 | if (iamremote == 0) | |
0fff78ff | 852 | (void) atomicio(vwrite, STDERR_FILENO, |
3c0ef626 | 853 | buf + 1, strlen(buf + 1)); |
854 | if (buf[0] == '\02') | |
855 | exit(1); | |
856 | ++errs; | |
857 | continue; | |
858 | } | |
859 | if (buf[0] == 'E') { | |
0fff78ff | 860 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 861 | return; |
862 | } | |
863 | if (ch == '\n') | |
864 | *--cp = 0; | |
865 | ||
866 | cp = buf; | |
867 | if (*cp == 'T') { | |
868 | setimes++; | |
869 | cp++; | |
870 | mtime.tv_sec = strtol(cp, &cp, 10); | |
871 | if (!cp || *cp++ != ' ') | |
872 | SCREWUP("mtime.sec not delimited"); | |
873 | mtime.tv_usec = strtol(cp, &cp, 10); | |
874 | if (!cp || *cp++ != ' ') | |
875 | SCREWUP("mtime.usec not delimited"); | |
876 | atime.tv_sec = strtol(cp, &cp, 10); | |
877 | if (!cp || *cp++ != ' ') | |
878 | SCREWUP("atime.sec not delimited"); | |
879 | atime.tv_usec = strtol(cp, &cp, 10); | |
880 | if (!cp || *cp++ != '\0') | |
881 | SCREWUP("atime.usec not delimited"); | |
0fff78ff | 882 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 883 | continue; |
884 | } | |
885 | if (*cp != 'C' && *cp != 'D') { | |
886 | /* | |
887 | * Check for the case "rcp remote:foo\* local:bar". | |
888 | * In this case, the line "No match." can be returned | |
889 | * by the shell before the rcp command on the remote is | |
890 | * executed so the ^Aerror_message convention isn't | |
891 | * followed. | |
892 | */ | |
893 | if (first) { | |
894 | run_err("%s", cp); | |
895 | exit(1); | |
896 | } | |
897 | SCREWUP("expected control record"); | |
898 | } | |
899 | mode = 0; | |
900 | for (++cp; cp < buf + 5; cp++) { | |
901 | if (*cp < '0' || *cp > '7') | |
902 | SCREWUP("bad mode"); | |
903 | mode = (mode << 3) | (*cp - '0'); | |
904 | } | |
905 | if (*cp++ != ' ') | |
906 | SCREWUP("mode not delimited"); | |
907 | ||
908 | for (size = 0; isdigit(*cp);) | |
909 | size = size * 10 + (*cp++ - '0'); | |
910 | if (*cp++ != ' ') | |
911 | SCREWUP("size not delimited"); | |
c9f39d2c | 912 | if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) { |
913 | run_err("error: unexpected filename: %s", cp); | |
914 | exit(1); | |
915 | } | |
3c0ef626 | 916 | if (targisdir) { |
917 | static char *namebuf; | |
665a873d | 918 | static size_t cursize; |
3c0ef626 | 919 | size_t need; |
920 | ||
921 | need = strlen(targ) + strlen(cp) + 250; | |
922 | if (need > cursize) { | |
923 | if (namebuf) | |
924 | xfree(namebuf); | |
925 | namebuf = xmalloc(need); | |
926 | cursize = need; | |
927 | } | |
928 | (void) snprintf(namebuf, need, "%s%s%s", targ, | |
700318f3 | 929 | strcmp(targ, "/") ? "/" : "", cp); |
3c0ef626 | 930 | np = namebuf; |
931 | } else | |
932 | np = targ; | |
933 | curfile = cp; | |
934 | exists = stat(np, &stb) == 0; | |
935 | if (buf[0] == 'D') { | |
936 | int mod_flag = pflag; | |
c9f39d2c | 937 | if (!iamrecursive) |
938 | SCREWUP("received directory without -r"); | |
3c0ef626 | 939 | if (exists) { |
940 | if (!S_ISDIR(stb.st_mode)) { | |
941 | errno = ENOTDIR; | |
942 | goto bad; | |
943 | } | |
944 | if (pflag) | |
945 | (void) chmod(np, mode); | |
946 | } else { | |
947 | /* Handle copying from a read-only | |
948 | directory */ | |
949 | mod_flag = 1; | |
950 | if (mkdir(np, mode | S_IRWXU) < 0) | |
951 | goto bad; | |
952 | } | |
953 | vect[0] = xstrdup(np); | |
954 | sink(1, vect); | |
955 | if (setimes) { | |
956 | setimes = 0; | |
957 | if (utimes(vect[0], tv) < 0) | |
958 | run_err("%s: set times: %s", | |
959 | vect[0], strerror(errno)); | |
960 | } | |
961 | if (mod_flag) | |
962 | (void) chmod(vect[0], mode); | |
963 | if (vect[0]) | |
964 | xfree(vect[0]); | |
965 | continue; | |
966 | } | |
967 | omode = mode; | |
968 | mode |= S_IWRITE; | |
969 | if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { | |
970 | bad: run_err("%s: %s", np, strerror(errno)); | |
971 | continue; | |
972 | } | |
0fff78ff | 973 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 974 | if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) { |
975 | (void) close(ofd); | |
976 | continue; | |
977 | } | |
978 | cp = bp->buf; | |
979 | wrerr = NO; | |
980 | ||
3c0ef626 | 981 | statbytes = 0; |
6a9b3198 | 982 | if (showprogress) |
983 | start_progress_meter(curfile, size, &statbytes); | |
3c0ef626 | 984 | for (count = i = 0; i < size; i += 4096) { |
985 | amt = 4096; | |
986 | if (i + amt > size) | |
987 | amt = size - i; | |
988 | count += amt; | |
989 | do { | |
c9f39d2c | 990 | j = atomicio(read, remin, cp, amt); |
665a873d | 991 | if (j == 0) { |
3c0ef626 | 992 | run_err("%s", j ? strerror(errno) : |
993 | "dropped connection"); | |
994 | exit(1); | |
995 | } | |
996 | amt -= j; | |
997 | cp += j; | |
998 | statbytes += j; | |
999 | } while (amt > 0); | |
cdd66111 | 1000 | |
1001 | if (limit_rate) | |
6a9b3198 | 1002 | bwlimit(4096); |
1003 | ||
3c0ef626 | 1004 | if (count == bp->cnt) { |
1005 | /* Keep reading so we stay sync'd up. */ | |
1006 | if (wrerr == NO) { | |
665a873d | 1007 | if (atomicio(vwrite, ofd, bp->buf, |
1008 | count) != count) { | |
3c0ef626 | 1009 | wrerr = YES; |
665a873d | 1010 | wrerrno = errno; |
3c0ef626 | 1011 | } |
1012 | } | |
1013 | count = 0; | |
1014 | cp = bp->buf; | |
1015 | } | |
1016 | } | |
1017 | if (showprogress) | |
6a9b3198 | 1018 | stop_progress_meter(); |
3c0ef626 | 1019 | if (count != 0 && wrerr == NO && |
665a873d | 1020 | atomicio(vwrite, ofd, bp->buf, count) != count) { |
3c0ef626 | 1021 | wrerr = YES; |
665a873d | 1022 | wrerrno = errno; |
3c0ef626 | 1023 | } |
6a9b3198 | 1024 | if (wrerr == NO && ftruncate(ofd, size) != 0) { |
3c0ef626 | 1025 | run_err("%s: truncate: %s", np, strerror(errno)); |
1026 | wrerr = DISPLAYED; | |
1027 | } | |
1028 | if (pflag) { | |
1029 | if (exists || omode != mode) | |
1030 | #ifdef HAVE_FCHMOD | |
c9f39d2c | 1031 | if (fchmod(ofd, omode)) { |
3c0ef626 | 1032 | #else /* HAVE_FCHMOD */ |
c9f39d2c | 1033 | if (chmod(np, omode)) { |
3c0ef626 | 1034 | #endif /* HAVE_FCHMOD */ |
1035 | run_err("%s: set mode: %s", | |
1036 | np, strerror(errno)); | |
c9f39d2c | 1037 | wrerr = DISPLAYED; |
1038 | } | |
3c0ef626 | 1039 | } else { |
1040 | if (!exists && omode != mode) | |
1041 | #ifdef HAVE_FCHMOD | |
c9f39d2c | 1042 | if (fchmod(ofd, omode & ~mask)) { |
3c0ef626 | 1043 | #else /* HAVE_FCHMOD */ |
c9f39d2c | 1044 | if (chmod(np, omode & ~mask)) { |
3c0ef626 | 1045 | #endif /* HAVE_FCHMOD */ |
1046 | run_err("%s: set mode: %s", | |
1047 | np, strerror(errno)); | |
c9f39d2c | 1048 | wrerr = DISPLAYED; |
1049 | } | |
3c0ef626 | 1050 | } |
1051 | if (close(ofd) == -1) { | |
1052 | wrerr = YES; | |
1053 | wrerrno = errno; | |
1054 | } | |
1055 | (void) response(); | |
1056 | if (setimes && wrerr == NO) { | |
1057 | setimes = 0; | |
1058 | if (utimes(np, tv) < 0) { | |
1059 | run_err("%s: set times: %s", | |
1060 | np, strerror(errno)); | |
1061 | wrerr = DISPLAYED; | |
1062 | } | |
1063 | } | |
1064 | switch (wrerr) { | |
1065 | case YES: | |
1066 | run_err("%s: %s", np, strerror(wrerrno)); | |
1067 | break; | |
1068 | case NO: | |
0fff78ff | 1069 | (void) atomicio(vwrite, remout, "", 1); |
3c0ef626 | 1070 | break; |
1071 | case DISPLAYED: | |
1072 | break; | |
1073 | } | |
1074 | } | |
1075 | screwup: | |
1076 | run_err("protocol error: %s", why); | |
1077 | exit(1); | |
1078 | } | |
1079 | ||
1080 | int | |
e9a17296 | 1081 | response(void) |
3c0ef626 | 1082 | { |
1083 | char ch, *cp, resp, rbuf[2048]; | |
1084 | ||
1085 | if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp)) | |
1086 | lostconn(0); | |
1087 | ||
1088 | cp = rbuf; | |
1089 | switch (resp) { | |
1090 | case 0: /* ok */ | |
1091 | return (0); | |
1092 | default: | |
1093 | *cp++ = resp; | |
1094 | /* FALLTHROUGH */ | |
1095 | case 1: /* error, followed by error msg */ | |
1096 | case 2: /* fatal error, "" */ | |
1097 | do { | |
1098 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) | |
1099 | lostconn(0); | |
1100 | *cp++ = ch; | |
1101 | } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n'); | |
1102 | ||
1103 | if (!iamremote) | |
0fff78ff | 1104 | (void) atomicio(vwrite, STDERR_FILENO, rbuf, cp - rbuf); |
3c0ef626 | 1105 | ++errs; |
1106 | if (resp == 1) | |
1107 | return (-1); | |
1108 | exit(1); | |
1109 | } | |
1110 | /* NOTREACHED */ | |
1111 | } | |
1112 | ||
1113 | void | |
e9a17296 | 1114 | usage(void) |
3c0ef626 | 1115 | { |
1116 | (void) fprintf(stderr, | |
cdd66111 | 1117 | "usage: scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]\n" |
1118 | " [-l limit] [-o ssh_option] [-P port] [-S program]\n" | |
f5799ae1 | 1119 | " [[user@]host1:]file1 [...] [[user@]host2:]file2\n"); |
3c0ef626 | 1120 | exit(1); |
1121 | } | |
1122 | ||
1123 | void | |
1124 | run_err(const char *fmt,...) | |
1125 | { | |
1126 | static FILE *fp; | |
1127 | va_list ap; | |
1128 | ||
1129 | ++errs; | |
9108f8d9 | 1130 | if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) { |
1131 | (void) fprintf(fp, "%c", 0x01); | |
1132 | (void) fprintf(fp, "scp: "); | |
1133 | va_start(ap, fmt); | |
1134 | (void) vfprintf(fp, fmt, ap); | |
1135 | va_end(ap); | |
1136 | (void) fprintf(fp, "\n"); | |
1137 | (void) fflush(fp); | |
1138 | } | |
3c0ef626 | 1139 | |
1140 | if (!iamremote) { | |
1141 | va_start(ap, fmt); | |
1142 | vfprintf(stderr, fmt, ap); | |
1143 | va_end(ap); | |
1144 | fprintf(stderr, "\n"); | |
1145 | } | |
1146 | } | |
1147 | ||
1148 | void | |
0fff78ff | 1149 | verifydir(char *cp) |
3c0ef626 | 1150 | { |
1151 | struct stat stb; | |
1152 | ||
1153 | if (!stat(cp, &stb)) { | |
1154 | if (S_ISDIR(stb.st_mode)) | |
1155 | return; | |
1156 | errno = ENOTDIR; | |
1157 | } | |
1158 | run_err("%s: %s", cp, strerror(errno)); | |
665a873d | 1159 | killchild(0); |
3c0ef626 | 1160 | } |
1161 | ||
1162 | int | |
0fff78ff | 1163 | okname(char *cp0) |
3c0ef626 | 1164 | { |
1165 | int c; | |
1166 | char *cp; | |
1167 | ||
1168 | cp = cp0; | |
1169 | do { | |
1170 | c = (int)*cp; | |
1171 | if (c & 0200) | |
1172 | goto bad; | |
6a9b3198 | 1173 | if (!isalpha(c) && !isdigit(c)) { |
1174 | switch (c) { | |
1175 | case '\'': | |
1176 | case '"': | |
1177 | case '`': | |
1178 | case ' ': | |
1179 | case '#': | |
1180 | goto bad; | |
1181 | default: | |
1182 | break; | |
1183 | } | |
1184 | } | |
3c0ef626 | 1185 | } while (*++cp); |
1186 | return (1); | |
1187 | ||
1188 | bad: fprintf(stderr, "%s: invalid user name\n", cp0); | |
1189 | return (0); | |
1190 | } | |
1191 | ||
1192 | BUF * | |
0fff78ff | 1193 | allocbuf(BUF *bp, int fd, int blksize) |
3c0ef626 | 1194 | { |
1195 | size_t size; | |
1196 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE | |
1197 | struct stat stb; | |
1198 | ||
1199 | if (fstat(fd, &stb) < 0) { | |
1200 | run_err("fstat: %s", strerror(errno)); | |
1201 | return (0); | |
1202 | } | |
6a9b3198 | 1203 | size = roundup(stb.st_blksize, blksize); |
1204 | if (size == 0) | |
3c0ef626 | 1205 | size = blksize; |
3c0ef626 | 1206 | #else /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
1207 | size = blksize; | |
1208 | #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */ | |
1209 | if (bp->cnt >= size) | |
1210 | return (bp); | |
1211 | if (bp->buf == NULL) | |
1212 | bp->buf = xmalloc(size); | |
1213 | else | |
9108f8d9 | 1214 | bp->buf = xrealloc(bp->buf, 1, size); |
3c0ef626 | 1215 | memset(bp->buf, 0, size); |
1216 | bp->cnt = size; | |
1217 | return (bp); | |
1218 | } | |
1219 | ||
1220 | void | |
0fff78ff | 1221 | lostconn(int signo) |
3c0ef626 | 1222 | { |
1223 | if (!iamremote) | |
1224 | write(STDERR_FILENO, "lost connection\n", 16); | |
1225 | if (signo) | |
1226 | _exit(1); | |
1227 | else | |
1228 | exit(1); | |
1229 | } |