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-rw-r--r--src/lib/libssl/s3_both.c635
1 files changed, 0 insertions, 635 deletions
diff --git a/src/lib/libssl/s3_both.c b/src/lib/libssl/s3_both.c
deleted file mode 100644
index 64d317b7ac..0000000000
--- a/src/lib/libssl/s3_both.c
+++ /dev/null
@@ -1,635 +0,0 @@
1/* ssl/s3_both.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58/* ====================================================================
59 * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
60 *
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
63 * are met:
64 *
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
67 *
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
71 * distribution.
72 *
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 *
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
82 *
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
86 *
87 * 6. Redistributions of any form whatsoever must retain the following
88 * acknowledgment:
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 *
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
105 *
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
109 *
110 */
111
112#include <limits.h>
113#include <string.h>
114#include <stdio.h>
115#include "ssl_locl.h"
116#include <openssl/buffer.h>
117#include <openssl/rand.h>
118#include <openssl/objects.h>
119#include <openssl/evp.h>
120#include <openssl/x509.h>
121
122/* send s->init_buf in records of type 'type' (SSL3_RT_HANDSHAKE or SSL3_RT_CHANGE_CIPHER_SPEC) */
123int ssl3_do_write(SSL *s, int type)
124 {
125 int ret;
126
127 ret=ssl3_write_bytes(s,type,&s->init_buf->data[s->init_off],
128 s->init_num);
129 if (ret < 0) return(-1);
130 if (type == SSL3_RT_HANDSHAKE)
131 /* should not be done for 'Hello Request's, but in that case
132 * we'll ignore the result anyway */
133 ssl3_finish_mac(s,(unsigned char *)&s->init_buf->data[s->init_off],ret);
134
135 if (ret == s->init_num)
136 {
137 if (s->msg_callback)
138 s->msg_callback(1, s->version, type, s->init_buf->data, (size_t)(s->init_off + s->init_num), s, s->msg_callback_arg);
139 return(1);
140 }
141 s->init_off+=ret;
142 s->init_num-=ret;
143 return(0);
144 }
145
146int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen)
147 {
148 unsigned char *p,*d;
149 int i;
150 unsigned long l;
151
152 if (s->state == a)
153 {
154 d=(unsigned char *)s->init_buf->data;
155 p= &(d[4]);
156
157 i=s->method->ssl3_enc->final_finish_mac(s,
158 &(s->s3->finish_dgst1),
159 &(s->s3->finish_dgst2),
160 sender,slen,s->s3->tmp.finish_md);
161 s->s3->tmp.finish_md_len = i;
162 memcpy(p, s->s3->tmp.finish_md, i);
163 p+=i;
164 l=i;
165
166#ifdef OPENSSL_SYS_WIN16
167 /* MSVC 1.5 does not clear the top bytes of the word unless
168 * I do this.
169 */
170 l&=0xffff;
171#endif
172
173 *(d++)=SSL3_MT_FINISHED;
174 l2n3(l,d);
175 s->init_num=(int)l+4;
176 s->init_off=0;
177
178 s->state=b;
179 }
180
181 /* SSL3_ST_SEND_xxxxxx_HELLO_B */
182 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
183 }
184
185int ssl3_get_finished(SSL *s, int a, int b)
186 {
187 int al,i,ok;
188 long n;
189 unsigned char *p;
190
191 /* the mac has already been generated when we received the
192 * change cipher spec message and is in s->s3->tmp.peer_finish_md
193 */
194
195 n=ssl3_get_message(s,
196 a,
197 b,
198 SSL3_MT_FINISHED,
199 64, /* should actually be 36+4 :-) */
200 &ok);
201
202 if (!ok) return((int)n);
203
204 /* If this occurs, we have missed a message */
205 if (!s->s3->change_cipher_spec)
206 {
207 al=SSL_AD_UNEXPECTED_MESSAGE;
208 SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_GOT_A_FIN_BEFORE_A_CCS);
209 goto f_err;
210 }
211 s->s3->change_cipher_spec=0;
212
213 p = (unsigned char *)s->init_msg;
214 i = s->s3->tmp.peer_finish_md_len;
215
216 if (i != n)
217 {
218 al=SSL_AD_DECODE_ERROR;
219 SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_BAD_DIGEST_LENGTH);
220 goto f_err;
221 }
222
223 if (memcmp(p, s->s3->tmp.peer_finish_md, i) != 0)
224 {
225 al=SSL_AD_DECRYPT_ERROR;
226 SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_DIGEST_CHECK_FAILED);
227 goto f_err;
228 }
229
230 return(1);
231f_err:
232 ssl3_send_alert(s,SSL3_AL_FATAL,al);
233 return(0);
234 }
235
236/* for these 2 messages, we need to
237 * ssl->enc_read_ctx re-init
238 * ssl->s3->read_sequence zero
239 * ssl->s3->read_mac_secret re-init
240 * ssl->session->read_sym_enc assign
241 * ssl->session->read_compression assign
242 * ssl->session->read_hash assign
243 */
244int ssl3_send_change_cipher_spec(SSL *s, int a, int b)
245 {
246 unsigned char *p;
247
248 if (s->state == a)
249 {
250 p=(unsigned char *)s->init_buf->data;
251 *p=SSL3_MT_CCS;
252 s->init_num=1;
253 s->init_off=0;
254
255 s->state=b;
256 }
257
258 /* SSL3_ST_CW_CHANGE_B */
259 return(ssl3_do_write(s,SSL3_RT_CHANGE_CIPHER_SPEC));
260 }
261
262unsigned long ssl3_output_cert_chain(SSL *s, X509 *x)
263 {
264 unsigned char *p;
265 int n,i;
266 unsigned long l=7;
267 BUF_MEM *buf;
268 X509_STORE_CTX xs_ctx;
269 X509_OBJECT obj;
270
271 int no_chain;
272
273 if ((s->mode & SSL_MODE_NO_AUTO_CHAIN) || s->ctx->extra_certs)
274 no_chain = 1;
275 else
276 no_chain = 0;
277
278 /* TLSv1 sends a chain with nothing in it, instead of an alert */
279 buf=s->init_buf;
280 if (!BUF_MEM_grow_clean(buf,10))
281 {
282 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
283 return(0);
284 }
285 if (x != NULL)
286 {
287 if(!no_chain && !X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,NULL,NULL))
288 {
289 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_X509_LIB);
290 return(0);
291 }
292
293 for (;;)
294 {
295 n=i2d_X509(x,NULL);
296 if (!BUF_MEM_grow_clean(buf,(int)(n+l+3)))
297 {
298 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
299 return(0);
300 }
301 p=(unsigned char *)&(buf->data[l]);
302 l2n3(n,p);
303 i2d_X509(x,&p);
304 l+=n+3;
305
306 if (no_chain)
307 break;
308
309 if (X509_NAME_cmp(X509_get_subject_name(x),
310 X509_get_issuer_name(x)) == 0) break;
311
312 i=X509_STORE_get_by_subject(&xs_ctx,X509_LU_X509,
313 X509_get_issuer_name(x),&obj);
314 if (i <= 0) break;
315 x=obj.data.x509;
316 /* Count is one too high since the X509_STORE_get uped the
317 * ref count */
318 X509_free(x);
319 }
320 if (!no_chain)
321 X509_STORE_CTX_cleanup(&xs_ctx);
322 }
323
324 /* Thawte special :-) */
325 if (s->ctx->extra_certs != NULL)
326 for (i=0; i<sk_X509_num(s->ctx->extra_certs); i++)
327 {
328 x=sk_X509_value(s->ctx->extra_certs,i);
329 n=i2d_X509(x,NULL);
330 if (!BUF_MEM_grow_clean(buf,(int)(n+l+3)))
331 {
332 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
333 return(0);
334 }
335 p=(unsigned char *)&(buf->data[l]);
336 l2n3(n,p);
337 i2d_X509(x,&p);
338 l+=n+3;
339 }
340
341 l-=7;
342 p=(unsigned char *)&(buf->data[4]);
343 l2n3(l,p);
344 l+=3;
345 p=(unsigned char *)&(buf->data[0]);
346 *(p++)=SSL3_MT_CERTIFICATE;
347 l2n3(l,p);
348 l+=4;
349 return(l);
350 }
351
352/* Obtain handshake message of message type 'mt' (any if mt == -1),
353 * maximum acceptable body length 'max'.
354 * The first four bytes (msg_type and length) are read in state 'st1',
355 * the body is read in state 'stn'.
356 */
357long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok)
358 {
359 unsigned char *p;
360 unsigned long l;
361 long n;
362 int i,al;
363
364 if (s->s3->tmp.reuse_message)
365 {
366 s->s3->tmp.reuse_message=0;
367 if ((mt >= 0) && (s->s3->tmp.message_type != mt))
368 {
369 al=SSL_AD_UNEXPECTED_MESSAGE;
370 SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
371 goto f_err;
372 }
373 *ok=1;
374 s->init_msg = s->init_buf->data + 4;
375 s->init_num = (int)s->s3->tmp.message_size;
376 return s->init_num;
377 }
378
379 p=(unsigned char *)s->init_buf->data;
380
381 if (s->state == st1) /* s->init_num < 4 */
382 {
383 int skip_message;
384
385 do
386 {
387 while (s->init_num < 4)
388 {
389 i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],
390 4 - s->init_num, 0);
391 if (i <= 0)
392 {
393 s->rwstate=SSL_READING;
394 *ok = 0;
395 return i;
396 }
397 s->init_num+=i;
398 }
399
400 skip_message = 0;
401 if (!s->server)
402 if (p[0] == SSL3_MT_HELLO_REQUEST)
403 /* The server may always send 'Hello Request' messages --
404 * we are doing a handshake anyway now, so ignore them
405 * if their format is correct. Does not count for
406 * 'Finished' MAC. */
407 if (p[1] == 0 && p[2] == 0 &&p[3] == 0)
408 {
409 s->init_num = 0;
410 skip_message = 1;
411
412 if (s->msg_callback)
413 s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, p, 4, s, s->msg_callback_arg);
414 }
415 }
416 while (skip_message);
417
418 /* s->init_num == 4 */
419
420 if ((mt >= 0) && (*p != mt))
421 {
422 al=SSL_AD_UNEXPECTED_MESSAGE;
423 SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
424 goto f_err;
425 }
426 if ((mt < 0) && (*p == SSL3_MT_CLIENT_HELLO) &&
427 (st1 == SSL3_ST_SR_CERT_A) &&
428 (stn == SSL3_ST_SR_CERT_B))
429 {
430 /* At this point we have got an MS SGC second client
431 * hello (maybe we should always allow the client to
432 * start a new handshake?). We need to restart the mac.
433 * Don't increment {num,total}_renegotiations because
434 * we have not completed the handshake. */
435 ssl3_init_finished_mac(s);
436 }
437
438 s->s3->tmp.message_type= *(p++);
439
440 n2l3(p,l);
441 if (l > (unsigned long)max)
442 {
443 al=SSL_AD_ILLEGAL_PARAMETER;
444 SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
445 goto f_err;
446 }
447 if (l > (INT_MAX-4)) /* BUF_MEM_grow takes an 'int' parameter */
448 {
449 al=SSL_AD_ILLEGAL_PARAMETER;
450 SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
451 goto f_err;
452 }
453 if (l && !BUF_MEM_grow_clean(s->init_buf,(int)l+4))
454 {
455 SSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB);
456 goto err;
457 }
458 s->s3->tmp.message_size=l;
459 s->state=stn;
460
461 s->init_msg = s->init_buf->data + 4;
462 s->init_num = 0;
463 }
464
465 /* next state (stn) */
466 p = s->init_msg;
467 n = s->s3->tmp.message_size - s->init_num;
468 while (n > 0)
469 {
470 i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],n,0);
471 if (i <= 0)
472 {
473 s->rwstate=SSL_READING;
474 *ok = 0;
475 return i;
476 }
477 s->init_num += i;
478 n -= i;
479 }
480 ssl3_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num + 4);
481 if (s->msg_callback)
482 s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, s->init_buf->data, (size_t)s->init_num + 4, s, s->msg_callback_arg);
483 *ok=1;
484 return s->init_num;
485f_err:
486 ssl3_send_alert(s,SSL3_AL_FATAL,al);
487err:
488 *ok=0;
489 return(-1);
490 }
491
492int ssl_cert_type(X509 *x, EVP_PKEY *pkey)
493 {
494 EVP_PKEY *pk;
495 int ret= -1,i,j;
496
497 if (pkey == NULL)
498 pk=X509_get_pubkey(x);
499 else
500 pk=pkey;
501 if (pk == NULL) goto err;
502
503 i=pk->type;
504 if (i == EVP_PKEY_RSA)
505 {
506 ret=SSL_PKEY_RSA_ENC;
507 if (x != NULL)
508 {
509 j=X509_get_ext_count(x);
510 /* check to see if this is a signing only certificate */
511 /* EAY EAY EAY EAY */
512 }
513 }
514 else if (i == EVP_PKEY_DSA)
515 {
516 ret=SSL_PKEY_DSA_SIGN;
517 }
518 else if (i == EVP_PKEY_DH)
519 {
520 /* if we just have a key, we needs to be guess */
521
522 if (x == NULL)
523 ret=SSL_PKEY_DH_DSA;
524 else
525 {
526 j=X509_get_signature_type(x);
527 if (j == EVP_PKEY_RSA)
528 ret=SSL_PKEY_DH_RSA;
529 else if (j== EVP_PKEY_DSA)
530 ret=SSL_PKEY_DH_DSA;
531 else ret= -1;
532 }
533 }
534 else
535 ret= -1;
536
537err:
538 if(!pkey) EVP_PKEY_free(pk);
539 return(ret);
540 }
541
542int ssl_verify_alarm_type(long type)
543 {
544 int al;
545
546 switch(type)
547 {
548 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
549 case X509_V_ERR_UNABLE_TO_GET_CRL:
550 case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER:
551 al=SSL_AD_UNKNOWN_CA;
552 break;
553 case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
554 case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
555 case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
556 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
557 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
558 case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
559 case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
560 case X509_V_ERR_CERT_NOT_YET_VALID:
561 case X509_V_ERR_CRL_NOT_YET_VALID:
562 case X509_V_ERR_CERT_UNTRUSTED:
563 case X509_V_ERR_CERT_REJECTED:
564 al=SSL_AD_BAD_CERTIFICATE;
565 break;
566 case X509_V_ERR_CERT_SIGNATURE_FAILURE:
567 case X509_V_ERR_CRL_SIGNATURE_FAILURE:
568 al=SSL_AD_DECRYPT_ERROR;
569 break;
570 case X509_V_ERR_CERT_HAS_EXPIRED:
571 case X509_V_ERR_CRL_HAS_EXPIRED:
572 al=SSL_AD_CERTIFICATE_EXPIRED;
573 break;
574 case X509_V_ERR_CERT_REVOKED:
575 al=SSL_AD_CERTIFICATE_REVOKED;
576 break;
577 case X509_V_ERR_OUT_OF_MEM:
578 al=SSL_AD_INTERNAL_ERROR;
579 break;
580 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
581 case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
582 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
583 case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
584 case X509_V_ERR_CERT_CHAIN_TOO_LONG:
585 case X509_V_ERR_PATH_LENGTH_EXCEEDED:
586 case X509_V_ERR_INVALID_CA:
587 al=SSL_AD_UNKNOWN_CA;
588 break;
589 case X509_V_ERR_APPLICATION_VERIFICATION:
590 al=SSL_AD_HANDSHAKE_FAILURE;
591 break;
592 case X509_V_ERR_INVALID_PURPOSE:
593 al=SSL_AD_UNSUPPORTED_CERTIFICATE;
594 break;
595 default:
596 al=SSL_AD_CERTIFICATE_UNKNOWN;
597 break;
598 }
599 return(al);
600 }
601
602int ssl3_setup_buffers(SSL *s)
603 {
604 unsigned char *p;
605 unsigned int extra;
606 size_t len;
607
608 if (s->s3->rbuf.buf == NULL)
609 {
610 if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER)
611 extra=SSL3_RT_MAX_EXTRA;
612 else
613 extra=0;
614 len = SSL3_RT_MAX_PACKET_SIZE + extra;
615 if ((p=OPENSSL_malloc(len)) == NULL)
616 goto err;
617 s->s3->rbuf.buf = p;
618 s->s3->rbuf.len = len;
619 }
620
621 if (s->s3->wbuf.buf == NULL)
622 {
623 len = SSL3_RT_MAX_PACKET_SIZE;
624 len += SSL3_RT_HEADER_LENGTH + 256; /* extra space for empty fragment */
625 if ((p=OPENSSL_malloc(len)) == NULL)
626 goto err;
627 s->s3->wbuf.buf = p;
628 s->s3->wbuf.len = len;
629 }
630 s->packet= &(s->s3->rbuf.buf[0]);
631 return(1);
632err:
633 SSLerr(SSL_F_SSL3_SETUP_BUFFERS,ERR_R_MALLOC_FAILURE);
634 return(0);
635 }
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