diff options
author | Damien Miller <djm@mindrot.org> | 1999-10-27 13:42:43 +1000 |
---|---|---|
committer | Damien Miller <djm@mindrot.org> | 1999-10-27 13:42:43 +1000 |
commit | d4a8b7e34dd619a4debf9a206c81db26d1402ea6 (patch) | |
tree | a47d770a2f790f40d18b0982d4e55fa7cfb1fa3b /ssh-agent.c |
Initial revision
Diffstat (limited to 'ssh-agent.c')
-rw-r--r-- | ssh-agent.c | 572 |
1 files changed, 572 insertions, 0 deletions
diff --git a/ssh-agent.c b/ssh-agent.c new file mode 100644 index 000000000..19165b8f1 --- /dev/null +++ b/ssh-agent.c | |||
@@ -0,0 +1,572 @@ | |||
1 | /* | ||
2 | |||
3 | ssh-agent.c | ||
4 | |||
5 | Author: Tatu Ylonen <ylo@cs.hut.fi> | ||
6 | |||
7 | Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland | ||
8 | All rights reserved | ||
9 | |||
10 | Created: Wed Mar 29 03:46:59 1995 ylo | ||
11 | |||
12 | The authentication agent program. | ||
13 | |||
14 | */ | ||
15 | |||
16 | #include "includes.h" | ||
17 | RCSID("$Id: ssh-agent.c,v 1.1 1999/10/27 03:42:45 damien Exp $"); | ||
18 | |||
19 | #include "ssh.h" | ||
20 | #include "rsa.h" | ||
21 | #include "authfd.h" | ||
22 | #include "buffer.h" | ||
23 | #include "bufaux.h" | ||
24 | #include "xmalloc.h" | ||
25 | #include "packet.h" | ||
26 | #include "getput.h" | ||
27 | #include "mpaux.h" | ||
28 | |||
29 | #include <openssl/md5.h> | ||
30 | |||
31 | typedef struct | ||
32 | { | ||
33 | int fd; | ||
34 | enum { AUTH_UNUSED, AUTH_SOCKET, AUTH_CONNECTION } type; | ||
35 | Buffer input; | ||
36 | Buffer output; | ||
37 | } SocketEntry; | ||
38 | |||
39 | unsigned int sockets_alloc = 0; | ||
40 | SocketEntry *sockets = NULL; | ||
41 | |||
42 | typedef struct | ||
43 | { | ||
44 | RSA *key; | ||
45 | char *comment; | ||
46 | } Identity; | ||
47 | |||
48 | unsigned int num_identities = 0; | ||
49 | Identity *identities = NULL; | ||
50 | |||
51 | int max_fd = 0; | ||
52 | |||
53 | /* pid of shell == parent of agent */ | ||
54 | int parent_pid = -1; | ||
55 | |||
56 | /* pathname and directory for AUTH_SOCKET */ | ||
57 | char socket_name[1024]; | ||
58 | char socket_dir[1024]; | ||
59 | |||
60 | void | ||
61 | process_request_identity(SocketEntry *e) | ||
62 | { | ||
63 | Buffer msg; | ||
64 | int i; | ||
65 | |||
66 | buffer_init(&msg); | ||
67 | buffer_put_char(&msg, SSH_AGENT_RSA_IDENTITIES_ANSWER); | ||
68 | buffer_put_int(&msg, num_identities); | ||
69 | for (i = 0; i < num_identities; i++) | ||
70 | { | ||
71 | buffer_put_int(&msg, BN_num_bits(identities[i].key->n)); | ||
72 | buffer_put_bignum(&msg, identities[i].key->e); | ||
73 | buffer_put_bignum(&msg, identities[i].key->n); | ||
74 | buffer_put_string(&msg, identities[i].comment, | ||
75 | strlen(identities[i].comment)); | ||
76 | } | ||
77 | buffer_put_int(&e->output, buffer_len(&msg)); | ||
78 | buffer_append(&e->output, buffer_ptr(&msg), buffer_len(&msg)); | ||
79 | buffer_free(&msg); | ||
80 | } | ||
81 | |||
82 | void | ||
83 | process_authentication_challenge(SocketEntry *e) | ||
84 | { | ||
85 | int i, pub_bits, len; | ||
86 | BIGNUM *pub_e, *pub_n, *challenge; | ||
87 | Buffer msg; | ||
88 | MD5_CTX md; | ||
89 | unsigned char buf[32], mdbuf[16], session_id[16]; | ||
90 | unsigned int response_type; | ||
91 | |||
92 | buffer_init(&msg); | ||
93 | pub_e = BN_new(); | ||
94 | pub_n = BN_new(); | ||
95 | challenge = BN_new(); | ||
96 | pub_bits = buffer_get_int(&e->input); | ||
97 | buffer_get_bignum(&e->input, pub_e); | ||
98 | buffer_get_bignum(&e->input, pub_n); | ||
99 | buffer_get_bignum(&e->input, challenge); | ||
100 | if (buffer_len(&e->input) == 0) | ||
101 | { | ||
102 | /* Compatibility code for old servers. */ | ||
103 | memset(session_id, 0, 16); | ||
104 | response_type = 0; | ||
105 | } | ||
106 | else | ||
107 | { | ||
108 | /* New code. */ | ||
109 | buffer_get(&e->input, (char *)session_id, 16); | ||
110 | response_type = buffer_get_int(&e->input); | ||
111 | } | ||
112 | for (i = 0; i < num_identities; i++) | ||
113 | if (pub_bits == BN_num_bits(identities[i].key->n) && | ||
114 | BN_cmp(pub_e, identities[i].key->e) == 0 && | ||
115 | BN_cmp(pub_n, identities[i].key->n) == 0) | ||
116 | { | ||
117 | /* Decrypt the challenge using the private key. */ | ||
118 | rsa_private_decrypt(challenge, challenge, identities[i].key); | ||
119 | |||
120 | /* Compute the desired response. */ | ||
121 | switch (response_type) | ||
122 | { | ||
123 | case 0: /* As of protocol 1.0 */ | ||
124 | /* This response type is no longer supported. */ | ||
125 | log("Compatibility with ssh protocol 1.0 no longer supported."); | ||
126 | buffer_put_char(&msg, SSH_AGENT_FAILURE); | ||
127 | goto send; | ||
128 | |||
129 | case 1: /* As of protocol 1.1 */ | ||
130 | /* The response is MD5 of decrypted challenge plus session id. */ | ||
131 | len = BN_num_bytes(challenge); | ||
132 | assert(len <= 32 && len); | ||
133 | memset(buf, 0, 32); | ||
134 | BN_bn2bin(challenge, buf + 32 - len); | ||
135 | MD5_Init(&md); | ||
136 | MD5_Update(&md, buf, 32); | ||
137 | MD5_Update(&md, session_id, 16); | ||
138 | MD5_Final(mdbuf, &md); | ||
139 | break; | ||
140 | |||
141 | default: | ||
142 | fatal("process_authentication_challenge: bad response_type %d", | ||
143 | response_type); | ||
144 | break; | ||
145 | } | ||
146 | |||
147 | /* Send the response. */ | ||
148 | buffer_put_char(&msg, SSH_AGENT_RSA_RESPONSE); | ||
149 | for (i = 0; i < 16; i++) | ||
150 | buffer_put_char(&msg, mdbuf[i]); | ||
151 | |||
152 | goto send; | ||
153 | } | ||
154 | /* Unknown identity. Send failure. */ | ||
155 | buffer_put_char(&msg, SSH_AGENT_FAILURE); | ||
156 | send: | ||
157 | buffer_put_int(&e->output, buffer_len(&msg)); | ||
158 | buffer_append(&e->output, buffer_ptr(&msg), | ||
159 | buffer_len(&msg)); | ||
160 | buffer_free(&msg); | ||
161 | BN_clear_free(pub_e); | ||
162 | BN_clear_free(pub_n); | ||
163 | BN_clear_free(challenge); | ||
164 | } | ||
165 | |||
166 | void | ||
167 | process_remove_identity(SocketEntry *e) | ||
168 | { | ||
169 | unsigned int bits; | ||
170 | unsigned int i; | ||
171 | BIGNUM *dummy, *n; | ||
172 | |||
173 | dummy = BN_new(); | ||
174 | n = BN_new(); | ||
175 | |||
176 | /* Get the key from the packet. */ | ||
177 | bits = buffer_get_int(&e->input); | ||
178 | buffer_get_bignum(&e->input, dummy); | ||
179 | buffer_get_bignum(&e->input, n); | ||
180 | |||
181 | /* Check if we have the key. */ | ||
182 | for (i = 0; i < num_identities; i++) | ||
183 | if (BN_cmp(identities[i].key->n, n) == 0) | ||
184 | { | ||
185 | /* We have this key. Free the old key. Since we don\'t want to leave | ||
186 | empty slots in the middle of the array, we actually free the | ||
187 | key there and copy data from the last entry. */ | ||
188 | RSA_free(identities[i].key); | ||
189 | xfree(identities[i].comment); | ||
190 | if (i < num_identities - 1) | ||
191 | identities[i] = identities[num_identities - 1]; | ||
192 | num_identities--; | ||
193 | BN_clear_free(dummy); | ||
194 | BN_clear_free(n); | ||
195 | |||
196 | /* Send success. */ | ||
197 | buffer_put_int(&e->output, 1); | ||
198 | buffer_put_char(&e->output, SSH_AGENT_SUCCESS); | ||
199 | return; | ||
200 | } | ||
201 | /* We did not have the key. */ | ||
202 | BN_clear(dummy); | ||
203 | BN_clear(n); | ||
204 | |||
205 | /* Send failure. */ | ||
206 | buffer_put_int(&e->output, 1); | ||
207 | buffer_put_char(&e->output, SSH_AGENT_FAILURE); | ||
208 | } | ||
209 | |||
210 | /* Removes all identities from the agent. */ | ||
211 | |||
212 | void | ||
213 | process_remove_all_identities(SocketEntry *e) | ||
214 | { | ||
215 | unsigned int i; | ||
216 | |||
217 | /* Loop over all identities and clear the keys. */ | ||
218 | for (i = 0; i < num_identities; i++) | ||
219 | { | ||
220 | RSA_free(identities[i].key); | ||
221 | xfree(identities[i].comment); | ||
222 | } | ||
223 | |||
224 | /* Mark that there are no identities. */ | ||
225 | num_identities = 0; | ||
226 | |||
227 | /* Send success. */ | ||
228 | buffer_put_int(&e->output, 1); | ||
229 | buffer_put_char(&e->output, SSH_AGENT_SUCCESS); | ||
230 | return; | ||
231 | } | ||
232 | |||
233 | /* Adds an identity to the agent. */ | ||
234 | |||
235 | void | ||
236 | process_add_identity(SocketEntry *e) | ||
237 | { | ||
238 | RSA *k; | ||
239 | int i; | ||
240 | BIGNUM *aux; | ||
241 | BN_CTX *ctx; | ||
242 | |||
243 | if (num_identities == 0) | ||
244 | identities = xmalloc(sizeof(Identity)); | ||
245 | else | ||
246 | identities = xrealloc(identities, (num_identities + 1) * sizeof(Identity)); | ||
247 | |||
248 | identities[num_identities].key = RSA_new(); | ||
249 | k = identities[num_identities].key; | ||
250 | buffer_get_int(&e->input); /* bits */ | ||
251 | k->n = BN_new(); | ||
252 | buffer_get_bignum(&e->input, k->n); | ||
253 | k->e = BN_new(); | ||
254 | buffer_get_bignum(&e->input, k->e); | ||
255 | k->d = BN_new(); | ||
256 | buffer_get_bignum(&e->input, k->d); | ||
257 | k->iqmp = BN_new(); | ||
258 | buffer_get_bignum(&e->input, k->iqmp); | ||
259 | /* SSH and SSL have p and q swapped */ | ||
260 | k->q = BN_new(); | ||
261 | buffer_get_bignum(&e->input, k->q); /* p */ | ||
262 | k->p = BN_new(); | ||
263 | buffer_get_bignum(&e->input, k->p); /* q */ | ||
264 | |||
265 | /* Generate additional parameters */ | ||
266 | aux = BN_new(); | ||
267 | ctx = BN_CTX_new(); | ||
268 | |||
269 | BN_sub(aux, k->q, BN_value_one()); | ||
270 | k->dmq1 = BN_new(); | ||
271 | BN_mod(k->dmq1, k->d, aux, ctx); | ||
272 | |||
273 | BN_sub(aux, k->p, BN_value_one()); | ||
274 | k->dmp1 = BN_new(); | ||
275 | BN_mod(k->dmp1, k->d, aux, ctx); | ||
276 | |||
277 | BN_clear_free(aux); | ||
278 | BN_CTX_free(ctx); | ||
279 | |||
280 | identities[num_identities].comment = buffer_get_string(&e->input, NULL); | ||
281 | |||
282 | /* Check if we already have the key. */ | ||
283 | for (i = 0; i < num_identities; i++) | ||
284 | if (BN_cmp(identities[i].key->n, k->n) == 0) | ||
285 | { | ||
286 | /* We already have this key. Clear and free the new data and | ||
287 | return success. */ | ||
288 | RSA_free(k); | ||
289 | xfree(identities[num_identities].comment); | ||
290 | |||
291 | /* Send success. */ | ||
292 | buffer_put_int(&e->output, 1); | ||
293 | buffer_put_char(&e->output, SSH_AGENT_SUCCESS); | ||
294 | return; | ||
295 | } | ||
296 | |||
297 | /* Increment the number of identities. */ | ||
298 | num_identities++; | ||
299 | |||
300 | /* Send a success message. */ | ||
301 | buffer_put_int(&e->output, 1); | ||
302 | buffer_put_char(&e->output, SSH_AGENT_SUCCESS); | ||
303 | } | ||
304 | |||
305 | void | ||
306 | process_message(SocketEntry *e) | ||
307 | { | ||
308 | unsigned int msg_len; | ||
309 | unsigned int type; | ||
310 | unsigned char *cp; | ||
311 | if (buffer_len(&e->input) < 5) | ||
312 | return; /* Incomplete message. */ | ||
313 | cp = (unsigned char *)buffer_ptr(&e->input); | ||
314 | msg_len = GET_32BIT(cp); | ||
315 | if (msg_len > 256 * 1024) | ||
316 | { | ||
317 | shutdown(e->fd, SHUT_RDWR); | ||
318 | close(e->fd); | ||
319 | e->type = AUTH_UNUSED; | ||
320 | return; | ||
321 | } | ||
322 | if (buffer_len(&e->input) < msg_len + 4) | ||
323 | return; | ||
324 | buffer_consume(&e->input, 4); | ||
325 | type = buffer_get_char(&e->input); | ||
326 | |||
327 | switch (type) | ||
328 | { | ||
329 | case SSH_AGENTC_REQUEST_RSA_IDENTITIES: | ||
330 | process_request_identity(e); | ||
331 | break; | ||
332 | case SSH_AGENTC_RSA_CHALLENGE: | ||
333 | process_authentication_challenge(e); | ||
334 | break; | ||
335 | case SSH_AGENTC_ADD_RSA_IDENTITY: | ||
336 | process_add_identity(e); | ||
337 | break; | ||
338 | case SSH_AGENTC_REMOVE_RSA_IDENTITY: | ||
339 | process_remove_identity(e); | ||
340 | break; | ||
341 | case SSH_AGENTC_REMOVE_ALL_RSA_IDENTITIES: | ||
342 | process_remove_all_identities(e); | ||
343 | break; | ||
344 | default: | ||
345 | /* Unknown message. Respond with failure. */ | ||
346 | error("Unknown message %d", type); | ||
347 | buffer_clear(&e->input); | ||
348 | buffer_put_int(&e->output, 1); | ||
349 | buffer_put_char(&e->output, SSH_AGENT_FAILURE); | ||
350 | break; | ||
351 | } | ||
352 | } | ||
353 | |||
354 | void | ||
355 | new_socket(int type, int fd) | ||
356 | { | ||
357 | unsigned int i, old_alloc; | ||
358 | if (fcntl(fd, F_SETFL, O_NONBLOCK) < 0) | ||
359 | error("fcntl O_NONBLOCK: %s", strerror(errno)); | ||
360 | |||
361 | if (fd > max_fd) | ||
362 | max_fd = fd; | ||
363 | |||
364 | for (i = 0; i < sockets_alloc; i++) | ||
365 | if (sockets[i].type == AUTH_UNUSED) | ||
366 | { | ||
367 | sockets[i].fd = fd; | ||
368 | sockets[i].type = type; | ||
369 | buffer_init(&sockets[i].input); | ||
370 | buffer_init(&sockets[i].output); | ||
371 | return; | ||
372 | } | ||
373 | old_alloc = sockets_alloc; | ||
374 | sockets_alloc += 10; | ||
375 | if (sockets) | ||
376 | sockets = xrealloc(sockets, sockets_alloc * sizeof(sockets[0])); | ||
377 | else | ||
378 | sockets = xmalloc(sockets_alloc * sizeof(sockets[0])); | ||
379 | for (i = old_alloc; i < sockets_alloc; i++) | ||
380 | sockets[i].type = AUTH_UNUSED; | ||
381 | sockets[old_alloc].type = type; | ||
382 | sockets[old_alloc].fd = fd; | ||
383 | buffer_init(&sockets[old_alloc].input); | ||
384 | buffer_init(&sockets[old_alloc].output); | ||
385 | } | ||
386 | |||
387 | void | ||
388 | prepare_select(fd_set *readset, fd_set *writeset) | ||
389 | { | ||
390 | unsigned int i; | ||
391 | for (i = 0; i < sockets_alloc; i++) | ||
392 | switch (sockets[i].type) | ||
393 | { | ||
394 | case AUTH_SOCKET: | ||
395 | case AUTH_CONNECTION: | ||
396 | FD_SET(sockets[i].fd, readset); | ||
397 | if (buffer_len(&sockets[i].output) > 0) | ||
398 | FD_SET(sockets[i].fd, writeset); | ||
399 | break; | ||
400 | case AUTH_UNUSED: | ||
401 | break; | ||
402 | default: | ||
403 | fatal("Unknown socket type %d", sockets[i].type); | ||
404 | break; | ||
405 | } | ||
406 | } | ||
407 | |||
408 | void after_select(fd_set *readset, fd_set *writeset) | ||
409 | { | ||
410 | unsigned int i; | ||
411 | int len, sock; | ||
412 | char buf[1024]; | ||
413 | struct sockaddr_un sunaddr; | ||
414 | |||
415 | for (i = 0; i < sockets_alloc; i++) | ||
416 | switch (sockets[i].type) | ||
417 | { | ||
418 | case AUTH_UNUSED: | ||
419 | break; | ||
420 | case AUTH_SOCKET: | ||
421 | if (FD_ISSET(sockets[i].fd, readset)) | ||
422 | { | ||
423 | len = sizeof(sunaddr); | ||
424 | sock = accept(sockets[i].fd, (struct sockaddr *)&sunaddr, &len); | ||
425 | if (sock < 0) | ||
426 | { | ||
427 | perror("accept from AUTH_SOCKET"); | ||
428 | break; | ||
429 | } | ||
430 | new_socket(AUTH_CONNECTION, sock); | ||
431 | } | ||
432 | break; | ||
433 | case AUTH_CONNECTION: | ||
434 | if (buffer_len(&sockets[i].output) > 0 && | ||
435 | FD_ISSET(sockets[i].fd, writeset)) | ||
436 | { | ||
437 | len = write(sockets[i].fd, buffer_ptr(&sockets[i].output), | ||
438 | buffer_len(&sockets[i].output)); | ||
439 | if (len <= 0) | ||
440 | { | ||
441 | shutdown(sockets[i].fd, SHUT_RDWR); | ||
442 | close(sockets[i].fd); | ||
443 | sockets[i].type = AUTH_UNUSED; | ||
444 | break; | ||
445 | } | ||
446 | buffer_consume(&sockets[i].output, len); | ||
447 | } | ||
448 | if (FD_ISSET(sockets[i].fd, readset)) | ||
449 | { | ||
450 | len = read(sockets[i].fd, buf, sizeof(buf)); | ||
451 | if (len <= 0) | ||
452 | { | ||
453 | shutdown(sockets[i].fd, SHUT_RDWR); | ||
454 | close(sockets[i].fd); | ||
455 | sockets[i].type = AUTH_UNUSED; | ||
456 | break; | ||
457 | } | ||
458 | buffer_append(&sockets[i].input, buf, len); | ||
459 | process_message(&sockets[i]); | ||
460 | } | ||
461 | break; | ||
462 | default: | ||
463 | fatal("Unknown type %d", sockets[i].type); | ||
464 | } | ||
465 | } | ||
466 | |||
467 | void | ||
468 | check_parent_exists(int sig) | ||
469 | { | ||
470 | if (kill(parent_pid, 0) < 0) | ||
471 | { | ||
472 | /* printf("Parent has died - Authentication agent exiting.\n"); */ | ||
473 | exit(1); | ||
474 | } | ||
475 | signal(SIGALRM, check_parent_exists); | ||
476 | alarm(10); | ||
477 | } | ||
478 | |||
479 | void cleanup_socket(void) { | ||
480 | remove(socket_name); | ||
481 | rmdir(socket_dir); | ||
482 | } | ||
483 | |||
484 | int | ||
485 | main(int ac, char **av) | ||
486 | { | ||
487 | fd_set readset, writeset; | ||
488 | int sock; | ||
489 | struct sockaddr_un sunaddr; | ||
490 | |||
491 | /* check if RSA support exists */ | ||
492 | if (rsa_alive() == 0) { | ||
493 | extern char *__progname; | ||
494 | fprintf(stderr, | ||
495 | "%s: no RSA support in libssl and libcrypto. See ssl(8).\n", | ||
496 | __progname); | ||
497 | exit(1); | ||
498 | } | ||
499 | |||
500 | if (ac < 2) | ||
501 | { | ||
502 | fprintf(stderr, "ssh-agent version %s\n", SSH_VERSION); | ||
503 | fprintf(stderr, "Usage: %s command\n", av[0]); | ||
504 | exit(1); | ||
505 | } | ||
506 | |||
507 | parent_pid = getpid(); | ||
508 | |||
509 | /* Create private directory for agent socket */ | ||
510 | strlcpy(socket_dir, "/tmp/ssh-XXXXXXXX", sizeof socket_dir); | ||
511 | if (mkdtemp(socket_dir) == NULL) { | ||
512 | perror("mkdtemp: private socket dir"); | ||
513 | exit(1); | ||
514 | } | ||
515 | snprintf(socket_name, sizeof socket_name, "%s/agent.%d", socket_dir, parent_pid); | ||
516 | |||
517 | /* Fork, and have the parent execute the command. The child continues as | ||
518 | the authentication agent. */ | ||
519 | if (fork() != 0) | ||
520 | { /* Parent - execute the given command. */ | ||
521 | setenv(SSH_AUTHSOCKET_ENV_NAME, socket_name, 1); | ||
522 | execvp(av[1], av + 1); | ||
523 | perror(av[1]); | ||
524 | exit(1); | ||
525 | } | ||
526 | |||
527 | if (atexit(cleanup_socket) < 0) { | ||
528 | perror("atexit"); | ||
529 | cleanup_socket(); | ||
530 | exit(1); | ||
531 | } | ||
532 | |||
533 | sock = socket(AF_UNIX, SOCK_STREAM, 0); | ||
534 | if (sock < 0) | ||
535 | { | ||
536 | perror("socket"); | ||
537 | exit(1); | ||
538 | } | ||
539 | memset(&sunaddr, 0, sizeof(sunaddr)); | ||
540 | sunaddr.sun_family = AF_UNIX; | ||
541 | strlcpy(sunaddr.sun_path, socket_name, sizeof(sunaddr.sun_path)); | ||
542 | if (bind(sock, (struct sockaddr *)&sunaddr, sizeof(sunaddr)) < 0) | ||
543 | { | ||
544 | perror("bind"); | ||
545 | exit(1); | ||
546 | } | ||
547 | if (listen(sock, 5) < 0) | ||
548 | { | ||
549 | perror("listen"); | ||
550 | exit(1); | ||
551 | } | ||
552 | new_socket(AUTH_SOCKET, sock); | ||
553 | signal(SIGALRM, check_parent_exists); | ||
554 | alarm(10); | ||
555 | |||
556 | signal(SIGINT, SIG_IGN); | ||
557 | while (1) | ||
558 | { | ||
559 | FD_ZERO(&readset); | ||
560 | FD_ZERO(&writeset); | ||
561 | prepare_select(&readset, &writeset); | ||
562 | if (select(max_fd + 1, &readset, &writeset, NULL, NULL) < 0) | ||
563 | { | ||
564 | if (errno == EINTR) | ||
565 | continue; | ||
566 | perror("select"); | ||
567 | exit(1); | ||
568 | } | ||
569 | after_select(&readset, &writeset); | ||
570 | } | ||
571 | /*NOTREACHED*/ | ||
572 | } | ||