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Commit | Line | Data |
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8efc0c15 | 1 | /* |
bcbf86ec | 2 | * scp - secure remote copy. This is basically patched BSD rcp which |
3 | * uses ssh to do the data transfer (instead of using rcmd). | |
6ae2364d | 4 | * |
bcbf86ec | 5 | * NOTE: This version should NOT be suid root. (This uses ssh to |
6 | * do the transfer and ssh has the necessary privileges.) | |
6ae2364d | 7 | * |
5260325f | 8 | * 1995 Timo Rinne <tri@iki.fi>, Tatu Ylonen <ylo@cs.hut.fi> |
6ae2364d | 9 | * |
bcbf86ec | 10 | * As far as I am concerned, the code I have written for this software |
11 | * can be used freely for any purpose. Any derived versions of this | |
12 | * software must be clearly marked as such, and if the derived work is | |
13 | * incompatible with the protocol description in the RFC file, it must be | |
14 | * called by a name other than "ssh" or "Secure Shell". | |
15 | */ | |
16 | /* | |
f3c7c613 | 17 | * Copyright (c) 1999 Theo de Raadt. All rights reserved. |
18 | * Copyright (c) 1999 Aaron Campbell. All rights reserved. | |
bcbf86ec | 19 | * |
20 | * Redistribution and use in source and binary forms, with or without | |
21 | * modification, are permitted provided that the following conditions | |
22 | * are met: | |
23 | * 1. Redistributions of source code must retain the above copyright | |
24 | * notice, this list of conditions and the following disclaimer. | |
25 | * 2. Redistributions in binary form must reproduce the above copyright | |
26 | * notice, this list of conditions and the following disclaimer in the | |
27 | * documentation and/or other materials provided with the distribution. | |
28 | * | |
29 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
30 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
31 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
32 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
33 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
34 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
35 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
36 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
37 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
38 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
39 | */ | |
8efc0c15 | 40 | |
41 | /* | |
2e73a022 | 42 | * Parts from: |
43 | * | |
8efc0c15 | 44 | * Copyright (c) 1983, 1990, 1992, 1993, 1995 |
45 | * The Regents of the University of California. All rights reserved. | |
46 | * | |
47 | * Redistribution and use in source and binary forms, with or without | |
48 | * modification, are permitted provided that the following conditions | |
49 | * are met: | |
50 | * 1. Redistributions of source code must retain the above copyright | |
51 | * notice, this list of conditions and the following disclaimer. | |
52 | * 2. Redistributions in binary form must reproduce the above copyright | |
53 | * notice, this list of conditions and the following disclaimer in the | |
54 | * documentation and/or other materials provided with the distribution. | |
d981089c | 55 | * 3. Neither the name of the University nor the names of its contributors |
8efc0c15 | 56 | * may be used to endorse or promote products derived from this software |
57 | * without specific prior written permission. | |
58 | * | |
59 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
60 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
61 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
62 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
63 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
64 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
65 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
66 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
67 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
68 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
69 | * SUCH DAMAGE. | |
70 | * | |
8efc0c15 | 71 | */ |
72 | ||
73 | #include "includes.h" | |
4095f623 | 74 | RCSID("$OpenBSD: scp.c,v 1.134 2006/02/20 17:19:54 stevesk Exp $"); |
aa2eae64 | 75 | |
76 | #include <sys/types.h> | |
4095f623 | 77 | #ifdef HAVE_SYS_STAT_H |
78 | # include <sys/stat.h> | |
79 | #endif | |
aa2eae64 | 80 | #include <sys/wait.h> |
68e39d38 | 81 | |
82 | #include <dirent.h> | |
ada68823 | 83 | #include <signal.h> |
8efc0c15 | 84 | |
8efc0c15 | 85 | #include "xmalloc.h" |
42f11eb2 | 86 | #include "atomicio.h" |
87 | #include "pathnames.h" | |
88 | #include "log.h" | |
36a358ca | 89 | #include "misc.h" |
b65c3807 | 90 | #include "progressmeter.h" |
8efc0c15 | 91 | |
260d427b | 92 | extern char *__progname; |
260d427b | 93 | |
6ea3c52a | 94 | void bwlimit(int); |
95 | ||
8a624ebf | 96 | /* Struct for addargs */ |
97 | arglist args; | |
94ec8c6b | 98 | |
6ea3c52a | 99 | /* Bandwidth limit */ |
10adbb52 | 100 | off_t limit_rate = 0; |
6ea3c52a | 101 | |
8efc0c15 | 102 | /* Name of current file being transferred. */ |
103 | char *curfile; | |
104 | ||
105 | /* This is set to non-zero to enable verbose mode. */ | |
5260325f | 106 | int verbose_mode = 0; |
8efc0c15 | 107 | |
8efc0c15 | 108 | /* This is set to zero if the progressmeter is not desired. */ |
109 | int showprogress = 1; | |
110 | ||
2e73a022 | 111 | /* This is the program to execute for the secured connection. ("ssh" or -S) */ |
42f11eb2 | 112 | char *ssh_program = _PATH_SSH_PROGRAM; |
2e73a022 | 113 | |
252d1a24 | 114 | /* This is used to store the pid of ssh_program */ |
0f764b2f | 115 | pid_t do_cmd_pid = -1; |
116 | ||
117 | static void | |
118 | killchild(int signo) | |
119 | { | |
3c03ad3f | 120 | if (do_cmd_pid > 1) { |
8f4ab41b | 121 | kill(do_cmd_pid, signo ? signo : SIGTERM); |
3c03ad3f | 122 | waitpid(do_cmd_pid, NULL, 0); |
123 | } | |
0f764b2f | 124 | |
8f4ab41b | 125 | if (signo) |
126 | _exit(1); | |
127 | exit(1); | |
0f764b2f | 128 | } |
252d1a24 | 129 | |
4116f5c0 | 130 | static int |
131 | do_local_cmd(arglist *a) | |
132 | { | |
133 | u_int i; | |
134 | int status; | |
135 | pid_t pid; | |
136 | ||
137 | if (a->num == 0) | |
138 | fatal("do_local_cmd: no arguments"); | |
139 | ||
140 | if (verbose_mode) { | |
141 | fprintf(stderr, "Executing:"); | |
142 | for (i = 0; i < a->num; i++) | |
143 | fprintf(stderr, " %s", a->list[i]); | |
144 | fprintf(stderr, "\n"); | |
145 | } | |
146 | if ((pid = fork()) == -1) | |
147 | fatal("do_local_cmd: fork: %s", strerror(errno)); | |
148 | ||
149 | if (pid == 0) { | |
150 | execvp(a->list[0], a->list); | |
151 | perror(a->list[0]); | |
152 | exit(1); | |
153 | } | |
154 | ||
155 | do_cmd_pid = pid; | |
156 | signal(SIGTERM, killchild); | |
157 | signal(SIGINT, killchild); | |
158 | signal(SIGHUP, killchild); | |
159 | ||
160 | while (waitpid(pid, &status, 0) == -1) | |
161 | if (errno != EINTR) | |
162 | fatal("do_local_cmd: waitpid: %s", strerror(errno)); | |
163 | ||
164 | do_cmd_pid = -1; | |
165 | ||
166 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
167 | return (-1); | |
168 | ||
169 | return (0); | |
170 | } | |
171 | ||
aa3378df | 172 | /* |
173 | * This function executes the given command as the specified user on the | |
174 | * given host. This returns < 0 if execution fails, and >= 0 otherwise. This | |
175 | * assigns the input and output file descriptors on success. | |
176 | */ | |
8efc0c15 | 177 | |
6ae2364d | 178 | int |
2e73a022 | 179 | do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc) |
8efc0c15 | 180 | { |
5260325f | 181 | int pin[2], pout[2], reserved[2]; |
182 | ||
183 | if (verbose_mode) | |
0b2988ca | 184 | fprintf(stderr, |
185 | "Executing: program %s host %s, user %s, command %s\n", | |
186 | ssh_program, host, | |
187 | remuser ? remuser : "(unspecified)", cmd); | |
5260325f | 188 | |
aa3378df | 189 | /* |
190 | * Reserve two descriptors so that the real pipes won't get | |
191 | * descriptors 0 and 1 because that will screw up dup2 below. | |
192 | */ | |
5260325f | 193 | pipe(reserved); |
194 | ||
195 | /* Create a socket pair for communicating with ssh. */ | |
196 | if (pipe(pin) < 0) | |
197 | fatal("pipe: %s", strerror(errno)); | |
198 | if (pipe(pout) < 0) | |
199 | fatal("pipe: %s", strerror(errno)); | |
200 | ||
201 | /* Free the reserved descriptors. */ | |
202 | close(reserved[0]); | |
203 | close(reserved[1]); | |
204 | ||
1fb23629 | 205 | /* Fork a child to execute the command on the remote host using ssh. */ |
252d1a24 | 206 | do_cmd_pid = fork(); |
207 | if (do_cmd_pid == 0) { | |
5260325f | 208 | /* Child. */ |
209 | close(pin[1]); | |
210 | close(pout[0]); | |
211 | dup2(pin[0], 0); | |
212 | dup2(pout[1], 1); | |
213 | close(pin[0]); | |
214 | close(pout[1]); | |
215 | ||
4116f5c0 | 216 | replacearg(&args, 0, "%s", ssh_program); |
94ec8c6b | 217 | if (remuser != NULL) |
8a624ebf | 218 | addargs(&args, "-l%s", remuser); |
219 | addargs(&args, "%s", host); | |
220 | addargs(&args, "%s", cmd); | |
5260325f | 221 | |
94ec8c6b | 222 | execvp(ssh_program, args.list); |
2e73a022 | 223 | perror(ssh_program); |
5260325f | 224 | exit(1); |
252d1a24 | 225 | } else if (do_cmd_pid == -1) { |
226 | fatal("fork: %s", strerror(errno)); | |
8efc0c15 | 227 | } |
5260325f | 228 | /* Parent. Close the other side, and return the local side. */ |
229 | close(pin[0]); | |
230 | *fdout = pin[1]; | |
231 | close(pout[1]); | |
232 | *fdin = pout[0]; | |
0f764b2f | 233 | signal(SIGTERM, killchild); |
234 | signal(SIGINT, killchild); | |
235 | signal(SIGHUP, killchild); | |
5260325f | 236 | return 0; |
8efc0c15 | 237 | } |
238 | ||
8efc0c15 | 239 | typedef struct { |
2ceb8101 | 240 | size_t cnt; |
8efc0c15 | 241 | char *buf; |
242 | } BUF; | |
243 | ||
5260325f | 244 | BUF *allocbuf(BUF *, int, int); |
5260325f | 245 | void lostconn(int); |
246 | void nospace(void); | |
247 | int okname(char *); | |
248 | void run_err(const char *,...); | |
249 | void verifydir(char *); | |
8efc0c15 | 250 | |
8efc0c15 | 251 | struct passwd *pwd; |
5260325f | 252 | uid_t userid; |
8efc0c15 | 253 | int errs, remin, remout; |
254 | int pflag, iamremote, iamrecursive, targetshouldbedirectory; | |
255 | ||
256 | #define CMDNEEDS 64 | |
257 | char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */ | |
258 | ||
5260325f | 259 | int response(void); |
260 | void rsource(char *, struct stat *); | |
261 | void sink(int, char *[]); | |
262 | void source(int, char *[]); | |
263 | void tolocal(int, char *[]); | |
264 | void toremote(char *, int, char *[]); | |
265 | void usage(void); | |
8efc0c15 | 266 | |
267 | int | |
cf3248b8 | 268 | main(int argc, char **argv) |
8efc0c15 | 269 | { |
252d1a24 | 270 | int ch, fflag, tflag, status; |
6ea3c52a | 271 | double speed; |
272 | char *targ, *endp; | |
8efc0c15 | 273 | extern char *optarg; |
274 | extern int optind; | |
275 | ||
fd6168c1 | 276 | /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
277 | sanitise_stdfd(); | |
278 | ||
fda04d7d | 279 | __progname = ssh_get_progname(argv[0]); |
260d427b | 280 | |
4116f5c0 | 281 | memset(&args, '\0', sizeof(args)); |
94ec8c6b | 282 | args.list = NULL; |
4116f5c0 | 283 | addargs(&args, "%s", ssh_program); |
8a624ebf | 284 | addargs(&args, "-x"); |
3a222388 | 285 | addargs(&args, "-oForwardAgent no"); |
d20f3c9e | 286 | addargs(&args, "-oPermitLocalCommand no"); |
e1c5bfaf | 287 | addargs(&args, "-oClearAllForwardings yes"); |
94ec8c6b | 288 | |
8efc0c15 | 289 | fflag = tflag = 0; |
e6b15f23 | 290 | while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q1246S:o:F:")) != -1) |
5260325f | 291 | switch (ch) { |
292 | /* User-visible flags. */ | |
e6b15f23 | 293 | case '1': |
294 | case '2': | |
48e671d5 | 295 | case '4': |
48e671d5 | 296 | case '6': |
94ec8c6b | 297 | case 'C': |
8a624ebf | 298 | addargs(&args, "-%c", ch); |
48e671d5 | 299 | break; |
94ec8c6b | 300 | case 'o': |
301 | case 'c': | |
302 | case 'i': | |
f1278af7 | 303 | case 'F': |
8a624ebf | 304 | addargs(&args, "-%c%s", ch, optarg); |
8efc0c15 | 305 | break; |
306 | case 'P': | |
8a624ebf | 307 | addargs(&args, "-p%s", optarg); |
94ec8c6b | 308 | break; |
309 | case 'B': | |
8a624ebf | 310 | addargs(&args, "-oBatchmode yes"); |
94ec8c6b | 311 | break; |
6ea3c52a | 312 | case 'l': |
313 | speed = strtod(optarg, &endp); | |
314 | if (speed <= 0 || *endp != '\0') | |
315 | usage(); | |
10adbb52 | 316 | limit_rate = speed * 1024; |
6ea3c52a | 317 | break; |
94ec8c6b | 318 | case 'p': |
319 | pflag = 1; | |
5260325f | 320 | break; |
8efc0c15 | 321 | case 'r': |
322 | iamrecursive = 1; | |
323 | break; | |
2e73a022 | 324 | case 'S': |
94ec8c6b | 325 | ssh_program = xstrdup(optarg); |
326 | break; | |
327 | case 'v': | |
4fc334a2 | 328 | addargs(&args, "-v"); |
94ec8c6b | 329 | verbose_mode = 1; |
330 | break; | |
331 | case 'q': | |
15c8e3fd | 332 | addargs(&args, "-q"); |
94ec8c6b | 333 | showprogress = 0; |
2e73a022 | 334 | break; |
335 | ||
5260325f | 336 | /* Server options. */ |
8efc0c15 | 337 | case 'd': |
338 | targetshouldbedirectory = 1; | |
339 | break; | |
5260325f | 340 | case 'f': /* "from" */ |
8efc0c15 | 341 | iamremote = 1; |
342 | fflag = 1; | |
343 | break; | |
5260325f | 344 | case 't': /* "to" */ |
8efc0c15 | 345 | iamremote = 1; |
346 | tflag = 1; | |
fe56c12b | 347 | #ifdef HAVE_CYGWIN |
348 | setmode(0, O_BINARY); | |
349 | #endif | |
8efc0c15 | 350 | break; |
8efc0c15 | 351 | default: |
352 | usage(); | |
353 | } | |
354 | argc -= optind; | |
355 | argv += optind; | |
356 | ||
357 | if ((pwd = getpwuid(userid = getuid())) == NULL) | |
261bd618 | 358 | fatal("unknown user %u", (u_int) userid); |
8efc0c15 | 359 | |
5260325f | 360 | if (!isatty(STDERR_FILENO)) |
8efc0c15 | 361 | showprogress = 0; |
362 | ||
363 | remin = STDIN_FILENO; | |
364 | remout = STDOUT_FILENO; | |
365 | ||
2b87da3b | 366 | if (fflag) { |
5260325f | 367 | /* Follow "protocol", send data. */ |
368 | (void) response(); | |
8efc0c15 | 369 | source(argc, argv); |
370 | exit(errs != 0); | |
371 | } | |
5260325f | 372 | if (tflag) { |
373 | /* Receive data. */ | |
8efc0c15 | 374 | sink(argc, argv); |
375 | exit(errs != 0); | |
376 | } | |
8efc0c15 | 377 | if (argc < 2) |
378 | usage(); | |
379 | if (argc > 2) | |
380 | targetshouldbedirectory = 1; | |
381 | ||
382 | remin = remout = -1; | |
252d1a24 | 383 | do_cmd_pid = -1; |
8efc0c15 | 384 | /* Command to be executed on remote system using "ssh". */ |
0ed28836 | 385 | (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s", |
386 | verbose_mode ? " -v" : "", | |
2e73a022 | 387 | iamrecursive ? " -r" : "", pflag ? " -p" : "", |
388 | targetshouldbedirectory ? " -d" : ""); | |
8efc0c15 | 389 | |
5260325f | 390 | (void) signal(SIGPIPE, lostconn); |
8efc0c15 | 391 | |
392 | if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */ | |
393 | toremote(targ, argc, argv); | |
394 | else { | |
8efc0c15 | 395 | if (targetshouldbedirectory) |
396 | verifydir(argv[argc - 1]); | |
16e8ab10 | 397 | tolocal(argc, argv); /* Dest is local host. */ |
8efc0c15 | 398 | } |
252d1a24 | 399 | /* |
400 | * Finally check the exit status of the ssh process, if one was forked | |
401 | * and no error has occured yet | |
402 | */ | |
403 | if (do_cmd_pid != -1 && errs == 0) { | |
404 | if (remin != -1) | |
405 | (void) close(remin); | |
406 | if (remout != -1) | |
407 | (void) close(remout); | |
408 | if (waitpid(do_cmd_pid, &status, 0) == -1) | |
409 | errs = 1; | |
410 | else { | |
411 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
412 | errs = 1; | |
413 | } | |
414 | } | |
8efc0c15 | 415 | exit(errs != 0); |
416 | } | |
417 | ||
418 | void | |
cf3248b8 | 419 | toremote(char *targ, int argc, char **argv) |
8efc0c15 | 420 | { |
421 | int i, len; | |
99dfaccc | 422 | char *bp, *host, *src, *suser, *thost, *tuser, *arg; |
4116f5c0 | 423 | arglist alist; |
424 | ||
425 | memset(&alist, '\0', sizeof(alist)); | |
426 | alist.list = NULL; | |
8efc0c15 | 427 | |
428 | *targ++ = 0; | |
429 | if (*targ == 0) | |
430 | targ = "."; | |
431 | ||
ae0d2f42 | 432 | arg = xstrdup(argv[argc - 1]); |
99dfaccc | 433 | if ((thost = strrchr(arg, '@'))) { |
8efc0c15 | 434 | /* user@host */ |
435 | *thost++ = 0; | |
99dfaccc | 436 | tuser = arg; |
8efc0c15 | 437 | if (*tuser == '\0') |
438 | tuser = NULL; | |
8efc0c15 | 439 | } else { |
99dfaccc | 440 | thost = arg; |
8efc0c15 | 441 | tuser = NULL; |
442 | } | |
443 | ||
4116f5c0 | 444 | if (tuser != NULL && !okname(tuser)) { |
445 | xfree(arg); | |
446 | return; | |
447 | } | |
448 | ||
8efc0c15 | 449 | for (i = 0; i < argc - 1; i++) { |
450 | src = colon(argv[i]); | |
5260325f | 451 | if (src) { /* remote to remote */ |
4116f5c0 | 452 | freeargs(&alist); |
453 | addargs(&alist, "%s", ssh_program); | |
454 | if (verbose_mode) | |
455 | addargs(&alist, "-v"); | |
456 | addargs(&alist, "-x"); | |
457 | addargs(&alist, "-oClearAllForwardings yes"); | |
458 | addargs(&alist, "-n"); | |
459 | ||
8efc0c15 | 460 | *src++ = 0; |
461 | if (*src == 0) | |
462 | src = "."; | |
15748b4d | 463 | host = strrchr(argv[i], '@'); |
4116f5c0 | 464 | |
8efc0c15 | 465 | if (host) { |
466 | *host++ = 0; | |
48e671d5 | 467 | host = cleanhostname(host); |
8efc0c15 | 468 | suser = argv[i]; |
469 | if (*suser == '\0') | |
470 | suser = pwd->pw_name; | |
4116f5c0 | 471 | else if (!okname(suser)) |
0ec7661a | 472 | continue; |
4116f5c0 | 473 | addargs(&alist, "-l"); |
474 | addargs(&alist, "%s", suser); | |
48e671d5 | 475 | } else { |
476 | host = cleanhostname(argv[i]); | |
48e671d5 | 477 | } |
4116f5c0 | 478 | addargs(&alist, "%s", host); |
479 | addargs(&alist, "%s", cmd); | |
480 | addargs(&alist, "%s", src); | |
481 | addargs(&alist, "%s%s%s:%s", | |
482 | tuser ? tuser : "", tuser ? "@" : "", | |
483 | thost, targ); | |
484 | if (do_local_cmd(&alist) != 0) | |
815a8407 | 485 | errs = 1; |
5260325f | 486 | } else { /* local to remote */ |
8efc0c15 | 487 | if (remin == -1) { |
488 | len = strlen(targ) + CMDNEEDS + 20; | |
5260325f | 489 | bp = xmalloc(len); |
0ed28836 | 490 | (void) snprintf(bp, len, "%s -t %s", cmd, targ); |
48e671d5 | 491 | host = cleanhostname(thost); |
2e73a022 | 492 | if (do_cmd(host, tuser, bp, &remin, |
493 | &remout, argc) < 0) | |
5260325f | 494 | exit(1); |
8efc0c15 | 495 | if (response() < 0) |
496 | exit(1); | |
5260325f | 497 | (void) xfree(bp); |
8efc0c15 | 498 | } |
5260325f | 499 | source(1, argv + i); |
8efc0c15 | 500 | } |
501 | } | |
502 | } | |
503 | ||
504 | void | |
cf3248b8 | 505 | tolocal(int argc, char **argv) |
8efc0c15 | 506 | { |
507 | int i, len; | |
508 | char *bp, *host, *src, *suser; | |
4116f5c0 | 509 | arglist alist; |
510 | ||
511 | memset(&alist, '\0', sizeof(alist)); | |
512 | alist.list = NULL; | |
8efc0c15 | 513 | |
514 | for (i = 0; i < argc - 1; i++) { | |
5260325f | 515 | if (!(src = colon(argv[i]))) { /* Local to local. */ |
4116f5c0 | 516 | freeargs(&alist); |
517 | addargs(&alist, "%s", _PATH_CP); | |
518 | if (iamrecursive) | |
519 | addargs(&alist, "-r"); | |
520 | if (pflag) | |
521 | addargs(&alist, "-p"); | |
522 | addargs(&alist, "%s", argv[i]); | |
523 | addargs(&alist, "%s", argv[argc-1]); | |
524 | if (do_local_cmd(&alist)) | |
8efc0c15 | 525 | ++errs; |
8efc0c15 | 526 | continue; |
527 | } | |
528 | *src++ = 0; | |
529 | if (*src == 0) | |
530 | src = "."; | |
15748b4d | 531 | if ((host = strrchr(argv[i], '@')) == NULL) { |
8efc0c15 | 532 | host = argv[i]; |
533 | suser = NULL; | |
534 | } else { | |
535 | *host++ = 0; | |
536 | suser = argv[i]; | |
537 | if (*suser == '\0') | |
538 | suser = pwd->pw_name; | |
8efc0c15 | 539 | } |
48e671d5 | 540 | host = cleanhostname(host); |
8efc0c15 | 541 | len = strlen(src) + CMDNEEDS + 20; |
5260325f | 542 | bp = xmalloc(len); |
0ed28836 | 543 | (void) snprintf(bp, len, "%s -f %s", cmd, src); |
2e73a022 | 544 | if (do_cmd(host, suser, bp, &remin, &remout, argc) < 0) { |
5260325f | 545 | (void) xfree(bp); |
546 | ++errs; | |
547 | continue; | |
8efc0c15 | 548 | } |
5260325f | 549 | xfree(bp); |
8efc0c15 | 550 | sink(1, argv + argc - 1); |
5260325f | 551 | (void) close(remin); |
8efc0c15 | 552 | remin = remout = -1; |
553 | } | |
554 | } | |
555 | ||
556 | void | |
cf3248b8 | 557 | source(int argc, char **argv) |
8efc0c15 | 558 | { |
559 | struct stat stb; | |
560 | static BUF buffer; | |
561 | BUF *bp; | |
05624c18 | 562 | off_t i, amt, statbytes; |
563 | size_t result; | |
a056dfa2 | 564 | int fd = -1, haderr, indx; |
8efc0c15 | 565 | char *last, *name, buf[2048]; |
0fc791ba | 566 | int len; |
8efc0c15 | 567 | |
568 | for (indx = 0; indx < argc; ++indx) { | |
5260325f | 569 | name = argv[indx]; |
8efc0c15 | 570 | statbytes = 0; |
0fc791ba | 571 | len = strlen(name); |
572 | while (len > 1 && name[len-1] == '/') | |
573 | name[--len] = '\0'; | |
5720c10e | 574 | if (strchr(name, '\n') != NULL) { |
575 | run_err("%s: skipping, filename contains a newline", | |
576 | name); | |
577 | goto next; | |
578 | } | |
8efc0c15 | 579 | if ((fd = open(name, O_RDONLY, 0)) < 0) |
580 | goto syserr; | |
581 | if (fstat(fd, &stb) < 0) { | |
582 | syserr: run_err("%s: %s", name, strerror(errno)); | |
583 | goto next; | |
584 | } | |
585 | switch (stb.st_mode & S_IFMT) { | |
586 | case S_IFREG: | |
587 | break; | |
588 | case S_IFDIR: | |
589 | if (iamrecursive) { | |
590 | rsource(name, &stb); | |
591 | goto next; | |
592 | } | |
593 | /* FALLTHROUGH */ | |
594 | default: | |
595 | run_err("%s: not a regular file", name); | |
596 | goto next; | |
597 | } | |
598 | if ((last = strrchr(name, '/')) == NULL) | |
599 | last = name; | |
600 | else | |
601 | ++last; | |
602 | curfile = last; | |
603 | if (pflag) { | |
604 | /* | |
605 | * Make it compatible with possible future | |
606 | * versions expecting microseconds. | |
607 | */ | |
0ed28836 | 608 | (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n", |
1e3b8b07 | 609 | (u_long) stb.st_mtime, |
610 | (u_long) stb.st_atime); | |
dc54438a | 611 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
8efc0c15 | 612 | if (response() < 0) |
613 | goto next; | |
614 | } | |
615 | #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) | |
bf1d27bd | 616 | snprintf(buf, sizeof buf, "C%04o %lld %s\n", |
1e3b8b07 | 617 | (u_int) (stb.st_mode & FILEMODEMASK), |
419094c6 | 618 | (long long)stb.st_size, last); |
5260325f | 619 | if (verbose_mode) { |
620 | fprintf(stderr, "Sending file modes: %s", buf); | |
5260325f | 621 | } |
dc54438a | 622 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
8efc0c15 | 623 | if (response() < 0) |
624 | goto next; | |
625 | if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) { | |
29accf74 | 626 | next: if (fd != -1) { |
627 | (void) close(fd); | |
628 | fd = -1; | |
629 | } | |
8efc0c15 | 630 | continue; |
631 | } | |
b65c3807 | 632 | if (showprogress) |
633 | start_progress_meter(curfile, stb.st_size, &statbytes); | |
8efc0c15 | 634 | /* Keep writing after an error so that we stay sync'd up. */ |
635 | for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { | |
636 | amt = bp->cnt; | |
637 | if (i + amt > stb.st_size) | |
638 | amt = stb.st_size - i; | |
639 | if (!haderr) { | |
1d1ffb87 | 640 | result = atomicio(read, fd, bp->buf, amt); |
8efc0c15 | 641 | if (result != amt) |
05624c18 | 642 | haderr = errno; |
8efc0c15 | 643 | } |
644 | if (haderr) | |
dc54438a | 645 | (void) atomicio(vwrite, remout, bp->buf, amt); |
8efc0c15 | 646 | else { |
dc54438a | 647 | result = atomicio(vwrite, remout, bp->buf, amt); |
8efc0c15 | 648 | if (result != amt) |
05624c18 | 649 | haderr = errno; |
8efc0c15 | 650 | statbytes += result; |
651 | } | |
10adbb52 | 652 | if (limit_rate) |
6ea3c52a | 653 | bwlimit(amt); |
8efc0c15 | 654 | } |
5260325f | 655 | if (showprogress) |
b65c3807 | 656 | stop_progress_meter(); |
8efc0c15 | 657 | |
29accf74 | 658 | if (fd != -1) { |
659 | if (close(fd) < 0 && !haderr) | |
660 | haderr = errno; | |
661 | fd = -1; | |
662 | } | |
8efc0c15 | 663 | if (!haderr) |
dc54438a | 664 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 665 | else |
666 | run_err("%s: %s", name, strerror(haderr)); | |
5260325f | 667 | (void) response(); |
8efc0c15 | 668 | } |
669 | } | |
670 | ||
671 | void | |
cf3248b8 | 672 | rsource(char *name, struct stat *statp) |
8efc0c15 | 673 | { |
674 | DIR *dirp; | |
675 | struct dirent *dp; | |
676 | char *last, *vect[1], path[1100]; | |
677 | ||
678 | if (!(dirp = opendir(name))) { | |
679 | run_err("%s: %s", name, strerror(errno)); | |
680 | return; | |
681 | } | |
682 | last = strrchr(name, '/'); | |
683 | if (last == 0) | |
684 | last = name; | |
685 | else | |
686 | last++; | |
687 | if (pflag) { | |
0ed28836 | 688 | (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n", |
1e3b8b07 | 689 | (u_long) statp->st_mtime, |
690 | (u_long) statp->st_atime); | |
dc54438a | 691 | (void) atomicio(vwrite, remout, path, strlen(path)); |
8efc0c15 | 692 | if (response() < 0) { |
693 | closedir(dirp); | |
694 | return; | |
695 | } | |
696 | } | |
0ed28836 | 697 | (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n", |
1e3b8b07 | 698 | (u_int) (statp->st_mode & FILEMODEMASK), 0, last); |
5260325f | 699 | if (verbose_mode) |
700 | fprintf(stderr, "Entering directory: %s", path); | |
dc54438a | 701 | (void) atomicio(vwrite, remout, path, strlen(path)); |
8efc0c15 | 702 | if (response() < 0) { |
703 | closedir(dirp); | |
704 | return; | |
705 | } | |
e5ff6ecf | 706 | while ((dp = readdir(dirp)) != NULL) { |
8efc0c15 | 707 | if (dp->d_ino == 0) |
708 | continue; | |
709 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) | |
710 | continue; | |
711 | if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) { | |
712 | run_err("%s/%s: name too long", name, dp->d_name); | |
713 | continue; | |
714 | } | |
0ed28836 | 715 | (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name); |
8efc0c15 | 716 | vect[0] = path; |
717 | source(1, vect); | |
718 | } | |
5260325f | 719 | (void) closedir(dirp); |
dc54438a | 720 | (void) atomicio(vwrite, remout, "E\n", 2); |
5260325f | 721 | (void) response(); |
8efc0c15 | 722 | } |
723 | ||
6ea3c52a | 724 | void |
725 | bwlimit(int amount) | |
726 | { | |
727 | static struct timeval bwstart, bwend; | |
728 | static int lamt, thresh = 16384; | |
ca75d7de | 729 | u_int64_t waitlen; |
6ea3c52a | 730 | struct timespec ts, rm; |
731 | ||
732 | if (!timerisset(&bwstart)) { | |
733 | gettimeofday(&bwstart, NULL); | |
734 | return; | |
735 | } | |
736 | ||
737 | lamt += amount; | |
738 | if (lamt < thresh) | |
739 | return; | |
740 | ||
741 | gettimeofday(&bwend, NULL); | |
742 | timersub(&bwend, &bwstart, &bwend); | |
743 | if (!timerisset(&bwend)) | |
744 | return; | |
745 | ||
746 | lamt *= 8; | |
ca75d7de | 747 | waitlen = (double)1000000L * lamt / limit_rate; |
6ea3c52a | 748 | |
ca75d7de | 749 | bwstart.tv_sec = waitlen / 1000000L; |
750 | bwstart.tv_usec = waitlen % 1000000L; | |
6ea3c52a | 751 | |
752 | if (timercmp(&bwstart, &bwend, >)) { | |
753 | timersub(&bwstart, &bwend, &bwend); | |
754 | ||
755 | /* Adjust the wait time */ | |
756 | if (bwend.tv_sec) { | |
757 | thresh /= 2; | |
758 | if (thresh < 2048) | |
759 | thresh = 2048; | |
760 | } else if (bwend.tv_usec < 100) { | |
761 | thresh *= 2; | |
762 | if (thresh > 32768) | |
763 | thresh = 32768; | |
764 | } | |
765 | ||
766 | TIMEVAL_TO_TIMESPEC(&bwend, &ts); | |
767 | while (nanosleep(&ts, &rm) == -1) { | |
768 | if (errno != EINTR) | |
769 | break; | |
770 | ts = rm; | |
771 | } | |
772 | } | |
773 | ||
774 | lamt = 0; | |
775 | gettimeofday(&bwstart, NULL); | |
776 | } | |
777 | ||
8efc0c15 | 778 | void |
cf3248b8 | 779 | sink(int argc, char **argv) |
8efc0c15 | 780 | { |
781 | static BUF buffer; | |
782 | struct stat stb; | |
5260325f | 783 | enum { |
784 | YES, NO, DISPLAYED | |
785 | } wrerr; | |
8efc0c15 | 786 | BUF *bp; |
05624c18 | 787 | off_t i; |
2ceb8101 | 788 | size_t j, count; |
789 | int amt, exists, first, mask, mode, ofd, omode; | |
b65c3807 | 790 | off_t size, statbytes; |
14a9a859 | 791 | int setimes, targisdir, wrerrno = 0; |
8efc0c15 | 792 | char ch, *cp, *np, *targ, *why, *vect[1], buf[2048]; |
188adeb2 | 793 | struct timeval tv[2]; |
8efc0c15 | 794 | |
36967a16 | 795 | #define atime tv[0] |
796 | #define mtime tv[1] | |
007607ab | 797 | #define SCREWUP(str) { why = str; goto screwup; } |
8efc0c15 | 798 | |
799 | setimes = targisdir = 0; | |
800 | mask = umask(0); | |
801 | if (!pflag) | |
5260325f | 802 | (void) umask(mask); |
8efc0c15 | 803 | if (argc != 1) { |
804 | run_err("ambiguous target"); | |
805 | exit(1); | |
806 | } | |
807 | targ = *argv; | |
808 | if (targetshouldbedirectory) | |
809 | verifydir(targ); | |
5260325f | 810 | |
dc54438a | 811 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 812 | if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) |
813 | targisdir = 1; | |
814 | for (first = 1;; first = 0) { | |
815 | cp = buf; | |
05624c18 | 816 | if (atomicio(read, remin, cp, 1) != 1) |
8efc0c15 | 817 | return; |
818 | if (*cp++ == '\n') | |
819 | SCREWUP("unexpected <newline>"); | |
820 | do { | |
1d1ffb87 | 821 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 822 | SCREWUP("lost connection"); |
823 | *cp++ = ch; | |
824 | } while (cp < &buf[sizeof(buf) - 1] && ch != '\n'); | |
825 | *cp = 0; | |
f09aa22c | 826 | if (verbose_mode) |
827 | fprintf(stderr, "Sink: %s", buf); | |
8efc0c15 | 828 | |
829 | if (buf[0] == '\01' || buf[0] == '\02') { | |
830 | if (iamremote == 0) | |
dc54438a | 831 | (void) atomicio(vwrite, STDERR_FILENO, |
71c0d06a | 832 | buf + 1, strlen(buf + 1)); |
8efc0c15 | 833 | if (buf[0] == '\02') |
834 | exit(1); | |
835 | ++errs; | |
836 | continue; | |
837 | } | |
838 | if (buf[0] == 'E') { | |
dc54438a | 839 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 840 | return; |
841 | } | |
8efc0c15 | 842 | if (ch == '\n') |
843 | *--cp = 0; | |
844 | ||
8efc0c15 | 845 | cp = buf; |
846 | if (*cp == 'T') { | |
847 | setimes++; | |
848 | cp++; | |
36967a16 | 849 | mtime.tv_sec = strtol(cp, &cp, 10); |
850 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 851 | SCREWUP("mtime.sec not delimited"); |
36967a16 | 852 | mtime.tv_usec = strtol(cp, &cp, 10); |
853 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 854 | SCREWUP("mtime.usec not delimited"); |
36967a16 | 855 | atime.tv_sec = strtol(cp, &cp, 10); |
856 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 857 | SCREWUP("atime.sec not delimited"); |
36967a16 | 858 | atime.tv_usec = strtol(cp, &cp, 10); |
859 | if (!cp || *cp++ != '\0') | |
8efc0c15 | 860 | SCREWUP("atime.usec not delimited"); |
dc54438a | 861 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 862 | continue; |
863 | } | |
864 | if (*cp != 'C' && *cp != 'D') { | |
865 | /* | |
866 | * Check for the case "rcp remote:foo\* local:bar". | |
867 | * In this case, the line "No match." can be returned | |
868 | * by the shell before the rcp command on the remote is | |
869 | * executed so the ^Aerror_message convention isn't | |
870 | * followed. | |
871 | */ | |
872 | if (first) { | |
873 | run_err("%s", cp); | |
874 | exit(1); | |
875 | } | |
876 | SCREWUP("expected control record"); | |
877 | } | |
878 | mode = 0; | |
879 | for (++cp; cp < buf + 5; cp++) { | |
880 | if (*cp < '0' || *cp > '7') | |
881 | SCREWUP("bad mode"); | |
882 | mode = (mode << 3) | (*cp - '0'); | |
883 | } | |
884 | if (*cp++ != ' ') | |
885 | SCREWUP("mode not delimited"); | |
886 | ||
e5ff6ecf | 887 | for (size = 0; isdigit(*cp);) |
8efc0c15 | 888 | size = size * 10 + (*cp++ - '0'); |
889 | if (*cp++ != ' ') | |
890 | SCREWUP("size not delimited"); | |
f09aa22c | 891 | if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) { |
892 | run_err("error: unexpected filename: %s", cp); | |
893 | exit(1); | |
894 | } | |
8efc0c15 | 895 | if (targisdir) { |
896 | static char *namebuf; | |
2ceb8101 | 897 | static size_t cursize; |
8efc0c15 | 898 | size_t need; |
899 | ||
900 | need = strlen(targ) + strlen(cp) + 250; | |
0ed28836 | 901 | if (need > cursize) { |
902 | if (namebuf) | |
903 | xfree(namebuf); | |
5260325f | 904 | namebuf = xmalloc(need); |
0ed28836 | 905 | cursize = need; |
906 | } | |
907 | (void) snprintf(namebuf, need, "%s%s%s", targ, | |
39f9599a | 908 | strcmp(targ, "/") ? "/" : "", cp); |
8efc0c15 | 909 | np = namebuf; |
910 | } else | |
911 | np = targ; | |
912 | curfile = cp; | |
913 | exists = stat(np, &stb) == 0; | |
914 | if (buf[0] == 'D') { | |
915 | int mod_flag = pflag; | |
f09aa22c | 916 | if (!iamrecursive) |
917 | SCREWUP("received directory without -r"); | |
8efc0c15 | 918 | if (exists) { |
919 | if (!S_ISDIR(stb.st_mode)) { | |
920 | errno = ENOTDIR; | |
921 | goto bad; | |
922 | } | |
923 | if (pflag) | |
5260325f | 924 | (void) chmod(np, mode); |
8efc0c15 | 925 | } else { |
5260325f | 926 | /* Handle copying from a read-only |
927 | directory */ | |
8efc0c15 | 928 | mod_flag = 1; |
929 | if (mkdir(np, mode | S_IRWXU) < 0) | |
930 | goto bad; | |
931 | } | |
5c470997 | 932 | vect[0] = xstrdup(np); |
8efc0c15 | 933 | sink(1, vect); |
934 | if (setimes) { | |
935 | setimes = 0; | |
e68225b2 | 936 | if (utimes(vect[0], tv) < 0) |
5260325f | 937 | run_err("%s: set times: %s", |
e68225b2 | 938 | vect[0], strerror(errno)); |
8efc0c15 | 939 | } |
940 | if (mod_flag) | |
e68225b2 | 941 | (void) chmod(vect[0], mode); |
942 | if (vect[0]) | |
943 | xfree(vect[0]); | |
8efc0c15 | 944 | continue; |
945 | } | |
946 | omode = mode; | |
947 | mode |= S_IWRITE; | |
3e4fc5f9 | 948 | if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { |
8efc0c15 | 949 | bad: run_err("%s: %s", np, strerror(errno)); |
950 | continue; | |
951 | } | |
dc54438a | 952 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 953 | if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) { |
5260325f | 954 | (void) close(ofd); |
8efc0c15 | 955 | continue; |
956 | } | |
957 | cp = bp->buf; | |
958 | wrerr = NO; | |
959 | ||
8efc0c15 | 960 | statbytes = 0; |
b65c3807 | 961 | if (showprogress) |
962 | start_progress_meter(curfile, size, &statbytes); | |
8efc0c15 | 963 | for (count = i = 0; i < size; i += 4096) { |
964 | amt = 4096; | |
965 | if (i + amt > size) | |
966 | amt = size - i; | |
967 | count += amt; | |
968 | do { | |
f581b6e8 | 969 | j = atomicio(read, remin, cp, amt); |
05624c18 | 970 | if (j == 0) { |
8efc0c15 | 971 | run_err("%s", j ? strerror(errno) : |
e5ff6ecf | 972 | "dropped connection"); |
8efc0c15 | 973 | exit(1); |
974 | } | |
975 | amt -= j; | |
976 | cp += j; | |
5260325f | 977 | statbytes += j; |
8efc0c15 | 978 | } while (amt > 0); |
b6453d99 | 979 | |
10adbb52 | 980 | if (limit_rate) |
6ea3c52a | 981 | bwlimit(4096); |
982 | ||
8efc0c15 | 983 | if (count == bp->cnt) { |
984 | /* Keep reading so we stay sync'd up. */ | |
985 | if (wrerr == NO) { | |
05624c18 | 986 | if (atomicio(vwrite, ofd, bp->buf, |
987 | count) != count) { | |
8efc0c15 | 988 | wrerr = YES; |
05624c18 | 989 | wrerrno = errno; |
8efc0c15 | 990 | } |
991 | } | |
992 | count = 0; | |
993 | cp = bp->buf; | |
994 | } | |
995 | } | |
996 | if (showprogress) | |
b65c3807 | 997 | stop_progress_meter(); |
8efc0c15 | 998 | if (count != 0 && wrerr == NO && |
05624c18 | 999 | atomicio(vwrite, ofd, bp->buf, count) != count) { |
8efc0c15 | 1000 | wrerr = YES; |
05624c18 | 1001 | wrerrno = errno; |
8efc0c15 | 1002 | } |
25a6efd8 | 1003 | if (wrerr == NO && ftruncate(ofd, size) != 0) { |
8efc0c15 | 1004 | run_err("%s: truncate: %s", np, strerror(errno)); |
1005 | wrerr = DISPLAYED; | |
1006 | } | |
8efc0c15 | 1007 | if (pflag) { |
1008 | if (exists || omode != mode) | |
77bb0bca | 1009 | #ifdef HAVE_FCHMOD |
7e693c81 | 1010 | if (fchmod(ofd, omode)) { |
77bb0bca | 1011 | #else /* HAVE_FCHMOD */ |
7e693c81 | 1012 | if (chmod(np, omode)) { |
77bb0bca | 1013 | #endif /* HAVE_FCHMOD */ |
8efc0c15 | 1014 | run_err("%s: set mode: %s", |
e5ff6ecf | 1015 | np, strerror(errno)); |
7e693c81 | 1016 | wrerr = DISPLAYED; |
1017 | } | |
8efc0c15 | 1018 | } else { |
1019 | if (!exists && omode != mode) | |
77bb0bca | 1020 | #ifdef HAVE_FCHMOD |
7e693c81 | 1021 | if (fchmod(ofd, omode & ~mask)) { |
77bb0bca | 1022 | #else /* HAVE_FCHMOD */ |
7e693c81 | 1023 | if (chmod(np, omode & ~mask)) { |
77bb0bca | 1024 | #endif /* HAVE_FCHMOD */ |
8efc0c15 | 1025 | run_err("%s: set mode: %s", |
e5ff6ecf | 1026 | np, strerror(errno)); |
7e693c81 | 1027 | wrerr = DISPLAYED; |
1028 | } | |
8efc0c15 | 1029 | } |
704b1659 | 1030 | if (close(ofd) == -1) { |
1031 | wrerr = YES; | |
1032 | wrerrno = errno; | |
1033 | } | |
5260325f | 1034 | (void) response(); |
8efc0c15 | 1035 | if (setimes && wrerr == NO) { |
1036 | setimes = 0; | |
188adeb2 | 1037 | if (utimes(np, tv) < 0) { |
8efc0c15 | 1038 | run_err("%s: set times: %s", |
e5ff6ecf | 1039 | np, strerror(errno)); |
8efc0c15 | 1040 | wrerr = DISPLAYED; |
1041 | } | |
1042 | } | |
5260325f | 1043 | switch (wrerr) { |
8efc0c15 | 1044 | case YES: |
1045 | run_err("%s: %s", np, strerror(wrerrno)); | |
1046 | break; | |
1047 | case NO: | |
dc54438a | 1048 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 1049 | break; |
1050 | case DISPLAYED: | |
1051 | break; | |
1052 | } | |
1053 | } | |
1054 | screwup: | |
1055 | run_err("protocol error: %s", why); | |
1056 | exit(1); | |
1057 | } | |
1058 | ||
1059 | int | |
d5bb9418 | 1060 | response(void) |
8efc0c15 | 1061 | { |
1062 | char ch, *cp, resp, rbuf[2048]; | |
1063 | ||
1d1ffb87 | 1064 | if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp)) |
8efc0c15 | 1065 | lostconn(0); |
1066 | ||
1067 | cp = rbuf; | |
5260325f | 1068 | switch (resp) { |
1069 | case 0: /* ok */ | |
8efc0c15 | 1070 | return (0); |
1071 | default: | |
1072 | *cp++ = resp; | |
1073 | /* FALLTHROUGH */ | |
5260325f | 1074 | case 1: /* error, followed by error msg */ |
1075 | case 2: /* fatal error, "" */ | |
8efc0c15 | 1076 | do { |
1d1ffb87 | 1077 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 1078 | lostconn(0); |
1079 | *cp++ = ch; | |
1080 | } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n'); | |
1081 | ||
1082 | if (!iamremote) | |
dc54438a | 1083 | (void) atomicio(vwrite, STDERR_FILENO, rbuf, cp - rbuf); |
8efc0c15 | 1084 | ++errs; |
1085 | if (resp == 1) | |
1086 | return (-1); | |
1087 | exit(1); | |
1088 | } | |
1089 | /* NOTREACHED */ | |
1090 | } | |
1091 | ||
1092 | void | |
d5bb9418 | 1093 | usage(void) |
8efc0c15 | 1094 | { |
f1278af7 | 1095 | (void) fprintf(stderr, |
433e60ac | 1096 | "usage: scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]\n" |
1097 | " [-l limit] [-o ssh_option] [-P port] [-S program]\n" | |
3015d321 | 1098 | " [[user@]host1:]file1 [...] [[user@]host2:]file2\n"); |
8efc0c15 | 1099 | exit(1); |
1100 | } | |
1101 | ||
1102 | void | |
5260325f | 1103 | run_err(const char *fmt,...) |
8efc0c15 | 1104 | { |
1105 | static FILE *fp; | |
1106 | va_list ap; | |
8efc0c15 | 1107 | |
1108 | ++errs; | |
1109 | if (fp == NULL && !(fp = fdopen(remout, "w"))) | |
1110 | return; | |
5260325f | 1111 | (void) fprintf(fp, "%c", 0x01); |
1112 | (void) fprintf(fp, "scp: "); | |
b92964b7 | 1113 | va_start(ap, fmt); |
5260325f | 1114 | (void) vfprintf(fp, fmt, ap); |
b92964b7 | 1115 | va_end(ap); |
5260325f | 1116 | (void) fprintf(fp, "\n"); |
1117 | (void) fflush(fp); | |
1118 | ||
1119 | if (!iamremote) { | |
b92964b7 | 1120 | va_start(ap, fmt); |
5260325f | 1121 | vfprintf(stderr, fmt, ap); |
b92964b7 | 1122 | va_end(ap); |
5260325f | 1123 | fprintf(stderr, "\n"); |
1124 | } | |
8efc0c15 | 1125 | } |
1126 | ||
8efc0c15 | 1127 | void |
cf3248b8 | 1128 | verifydir(char *cp) |
8efc0c15 | 1129 | { |
1130 | struct stat stb; | |
1131 | ||
1132 | if (!stat(cp, &stb)) { | |
1133 | if (S_ISDIR(stb.st_mode)) | |
1134 | return; | |
1135 | errno = ENOTDIR; | |
1136 | } | |
1137 | run_err("%s: %s", cp, strerror(errno)); | |
8f4ab41b | 1138 | killchild(0); |
8efc0c15 | 1139 | } |
1140 | ||
1141 | int | |
cf3248b8 | 1142 | okname(char *cp0) |
8efc0c15 | 1143 | { |
1144 | int c; | |
1145 | char *cp; | |
1146 | ||
1147 | cp = cp0; | |
1148 | do { | |
cb220a93 | 1149 | c = (int)*cp; |
8efc0c15 | 1150 | if (c & 0200) |
1151 | goto bad; | |
0ec7661a | 1152 | if (!isalpha(c) && !isdigit(c)) { |
1153 | switch (c) { | |
1154 | case '\'': | |
1155 | case '"': | |
1156 | case '`': | |
1157 | case ' ': | |
1158 | case '#': | |
1159 | goto bad; | |
1160 | default: | |
1161 | break; | |
1162 | } | |
1163 | } | |
8efc0c15 | 1164 | } while (*++cp); |
1165 | return (1); | |
1166 | ||
c8d54615 | 1167 | bad: fprintf(stderr, "%s: invalid user name\n", cp0); |
8efc0c15 | 1168 | return (0); |
1169 | } | |
1170 | ||
1171 | BUF * | |
cf3248b8 | 1172 | allocbuf(BUF *bp, int fd, int blksize) |
8efc0c15 | 1173 | { |
1174 | size_t size; | |
98a7c37b | 1175 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE |
8efc0c15 | 1176 | struct stat stb; |
1177 | ||
1178 | if (fstat(fd, &stb) < 0) { | |
1179 | run_err("fstat: %s", strerror(errno)); | |
1180 | return (0); | |
1181 | } | |
a0a14bcd | 1182 | size = roundup(stb.st_blksize, blksize); |
1183 | if (size == 0) | |
5260325f | 1184 | size = blksize; |
98a7c37b | 1185 | #else /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
2b87da3b | 1186 | size = blksize; |
98a7c37b | 1187 | #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
8efc0c15 | 1188 | if (bp->cnt >= size) |
1189 | return (bp); | |
5260325f | 1190 | if (bp->buf == NULL) |
1191 | bp->buf = xmalloc(size); | |
1192 | else | |
1193 | bp->buf = xrealloc(bp->buf, size); | |
46660a9e | 1194 | memset(bp->buf, 0, size); |
8efc0c15 | 1195 | bp->cnt = size; |
1196 | return (bp); | |
1197 | } | |
1198 | ||
1199 | void | |
cf3248b8 | 1200 | lostconn(int signo) |
8efc0c15 | 1201 | { |
1202 | if (!iamremote) | |
08c260ea | 1203 | write(STDERR_FILENO, "lost connection\n", 16); |
1204 | if (signo) | |
1205 | _exit(1); | |
1206 | else | |
1207 | exit(1); | |
8efc0c15 | 1208 | } |