Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 1 | /* ssl/s2_lib.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) 1998-2007 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 "ssl_locl.h" |
| 113 | #ifndef OPENSSL_NO_SSL2 |
| 114 | #include <stdio.h> |
| 115 | #include <openssl/objects.h> |
| 116 | #include <openssl/evp.h> |
| 117 | #include <openssl/md5.h> |
| 118 | |
| 119 | const char ssl2_version_str[]="SSLv2" OPENSSL_VERSION_PTEXT; |
| 120 | |
| 121 | #define SSL2_NUM_CIPHERS (sizeof(ssl2_ciphers)/sizeof(SSL_CIPHER)) |
| 122 | |
| 123 | /* list of available SSLv2 ciphers (sorted by id) */ |
| 124 | OPENSSL_GLOBAL const SSL_CIPHER ssl2_ciphers[]={ |
| 125 | #if 0 |
| 126 | /* NULL_WITH_MD5 v3 */ |
| 127 | { |
| 128 | 1, |
| 129 | SSL2_TXT_NULL_WITH_MD5, |
| 130 | SSL2_CK_NULL_WITH_MD5, |
| 131 | SSL_kRSA, |
| 132 | SSL_aRSA, |
| 133 | SSL_eNULL, |
| 134 | SSL_MD5, |
| 135 | SSL_SSLV2, |
| 136 | SSL_EXPORT|SSL_EXP40|SSL_STRONG_NONE, |
| 137 | 0, |
| 138 | 0, |
| 139 | 0, |
| 140 | }, |
| 141 | #endif |
| 142 | |
| 143 | /* RC4_128_WITH_MD5 */ |
| 144 | { |
| 145 | 1, |
| 146 | SSL2_TXT_RC4_128_WITH_MD5, |
| 147 | SSL2_CK_RC4_128_WITH_MD5, |
| 148 | SSL_kRSA, |
| 149 | SSL_aRSA, |
| 150 | SSL_RC4, |
| 151 | SSL_MD5, |
| 152 | SSL_SSLV2, |
| 153 | SSL_NOT_EXP|SSL_MEDIUM, |
| 154 | 0, |
| 155 | 128, |
| 156 | 128, |
| 157 | }, |
| 158 | |
| 159 | /* RC4_128_EXPORT40_WITH_MD5 */ |
| 160 | { |
| 161 | 1, |
| 162 | SSL2_TXT_RC4_128_EXPORT40_WITH_MD5, |
| 163 | SSL2_CK_RC4_128_EXPORT40_WITH_MD5, |
| 164 | SSL_kRSA, |
| 165 | SSL_aRSA, |
| 166 | SSL_RC4, |
| 167 | SSL_MD5, |
| 168 | SSL_SSLV2, |
| 169 | SSL_EXPORT|SSL_EXP40, |
| 170 | SSL2_CF_5_BYTE_ENC, |
| 171 | 40, |
| 172 | 128, |
| 173 | }, |
| 174 | |
| 175 | /* RC2_128_CBC_WITH_MD5 */ |
| 176 | { |
| 177 | 1, |
| 178 | SSL2_TXT_RC2_128_CBC_WITH_MD5, |
| 179 | SSL2_CK_RC2_128_CBC_WITH_MD5, |
| 180 | SSL_kRSA, |
| 181 | SSL_aRSA, |
| 182 | SSL_RC2, |
| 183 | SSL_MD5, |
| 184 | SSL_SSLV2, |
| 185 | SSL_NOT_EXP|SSL_MEDIUM, |
| 186 | 0, |
| 187 | 128, |
| 188 | 128, |
| 189 | }, |
| 190 | |
| 191 | /* RC2_128_CBC_EXPORT40_WITH_MD5 */ |
| 192 | { |
| 193 | 1, |
| 194 | SSL2_TXT_RC2_128_CBC_EXPORT40_WITH_MD5, |
| 195 | SSL2_CK_RC2_128_CBC_EXPORT40_WITH_MD5, |
| 196 | SSL_kRSA, |
| 197 | SSL_aRSA, |
| 198 | SSL_RC2, |
| 199 | SSL_MD5, |
| 200 | SSL_SSLV2, |
| 201 | SSL_EXPORT|SSL_EXP40, |
| 202 | SSL2_CF_5_BYTE_ENC, |
| 203 | 40, |
| 204 | 128, |
| 205 | }, |
| 206 | |
| 207 | #ifndef OPENSSL_NO_IDEA |
| 208 | /* IDEA_128_CBC_WITH_MD5 */ |
| 209 | { |
| 210 | 1, |
| 211 | SSL2_TXT_IDEA_128_CBC_WITH_MD5, |
| 212 | SSL2_CK_IDEA_128_CBC_WITH_MD5, |
| 213 | SSL_kRSA, |
| 214 | SSL_aRSA, |
| 215 | SSL_IDEA, |
| 216 | SSL_MD5, |
| 217 | SSL_SSLV2, |
| 218 | SSL_NOT_EXP|SSL_MEDIUM, |
| 219 | 0, |
| 220 | 128, |
| 221 | 128, |
| 222 | }, |
| 223 | #endif |
| 224 | |
| 225 | /* DES_64_CBC_WITH_MD5 */ |
| 226 | { |
| 227 | 1, |
| 228 | SSL2_TXT_DES_64_CBC_WITH_MD5, |
| 229 | SSL2_CK_DES_64_CBC_WITH_MD5, |
| 230 | SSL_kRSA, |
| 231 | SSL_aRSA, |
| 232 | SSL_DES, |
| 233 | SSL_MD5, |
| 234 | SSL_SSLV2, |
| 235 | SSL_NOT_EXP|SSL_LOW, |
| 236 | 0, |
| 237 | 56, |
| 238 | 56, |
| 239 | }, |
| 240 | |
| 241 | /* DES_192_EDE3_CBC_WITH_MD5 */ |
| 242 | { |
| 243 | 1, |
| 244 | SSL2_TXT_DES_192_EDE3_CBC_WITH_MD5, |
| 245 | SSL2_CK_DES_192_EDE3_CBC_WITH_MD5, |
| 246 | SSL_kRSA, |
| 247 | SSL_aRSA, |
| 248 | SSL_3DES, |
| 249 | SSL_MD5, |
| 250 | SSL_SSLV2, |
| 251 | SSL_NOT_EXP|SSL_HIGH, |
| 252 | 0, |
| 253 | 168, |
| 254 | 168, |
| 255 | }, |
| 256 | |
| 257 | #if 0 |
| 258 | /* RC4_64_WITH_MD5 */ |
| 259 | { |
| 260 | 1, |
| 261 | SSL2_TXT_RC4_64_WITH_MD5, |
| 262 | SSL2_CK_RC4_64_WITH_MD5, |
| 263 | SSL_kRSA, |
| 264 | SSL_aRSA, |
| 265 | SSL_RC4, |
| 266 | SSL_MD5, |
| 267 | SSL_SSLV2, |
| 268 | SSL_NOT_EXP|SSL_LOW, |
| 269 | SSL2_CF_8_BYTE_ENC, |
| 270 | 64, |
| 271 | 64, |
| 272 | }, |
| 273 | #endif |
| 274 | |
| 275 | #if 0 |
| 276 | /* NULL SSLeay (testing) */ |
| 277 | { |
| 278 | 0, |
| 279 | SSL2_TXT_NULL, |
| 280 | SSL2_CK_NULL, |
| 281 | 0, |
| 282 | 0, |
| 283 | 0, |
| 284 | 0, |
| 285 | SSL_SSLV2, |
| 286 | SSL_STRONG_NONE, |
| 287 | 0, |
| 288 | 0, |
| 289 | 0, |
| 290 | }, |
| 291 | #endif |
| 292 | |
| 293 | /* end of list :-) */ |
| 294 | }; |
| 295 | |
| 296 | long ssl2_default_timeout(void) |
| 297 | { |
| 298 | return(300); |
| 299 | } |
| 300 | |
| 301 | int ssl2_num_ciphers(void) |
| 302 | { |
| 303 | return(SSL2_NUM_CIPHERS); |
| 304 | } |
| 305 | |
| 306 | const SSL_CIPHER *ssl2_get_cipher(unsigned int u) |
| 307 | { |
| 308 | if (u < SSL2_NUM_CIPHERS) |
| 309 | return(&(ssl2_ciphers[SSL2_NUM_CIPHERS-1-u])); |
| 310 | else |
| 311 | return(NULL); |
| 312 | } |
| 313 | |
| 314 | int ssl2_pending(const SSL *s) |
| 315 | { |
| 316 | return SSL_in_init(s) ? 0 : s->s2->ract_data_length; |
| 317 | } |
| 318 | |
| 319 | int ssl2_new(SSL *s) |
| 320 | { |
| 321 | SSL2_STATE *s2; |
| 322 | |
| 323 | if ((s2=OPENSSL_malloc(sizeof *s2)) == NULL) goto err; |
| 324 | memset(s2,0,sizeof *s2); |
| 325 | |
| 326 | #if SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER + 3 > SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER + 2 |
| 327 | # error "assertion failed" |
| 328 | #endif |
| 329 | |
| 330 | if ((s2->rbuf=OPENSSL_malloc( |
| 331 | SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2)) == NULL) goto err; |
| 332 | /* wbuf needs one byte more because when using two-byte headers, |
| 333 | * we leave the first byte unused in do_ssl_write (s2_pkt.c) */ |
| 334 | if ((s2->wbuf=OPENSSL_malloc( |
| 335 | SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+3)) == NULL) goto err; |
| 336 | s->s2=s2; |
| 337 | |
| 338 | ssl2_clear(s); |
| 339 | return(1); |
| 340 | err: |
| 341 | if (s2 != NULL) |
| 342 | { |
| 343 | if (s2->wbuf != NULL) OPENSSL_free(s2->wbuf); |
| 344 | if (s2->rbuf != NULL) OPENSSL_free(s2->rbuf); |
| 345 | OPENSSL_free(s2); |
| 346 | } |
| 347 | return(0); |
| 348 | } |
| 349 | |
| 350 | void ssl2_free(SSL *s) |
| 351 | { |
| 352 | SSL2_STATE *s2; |
| 353 | |
| 354 | if(s == NULL) |
| 355 | return; |
| 356 | |
| 357 | s2=s->s2; |
| 358 | if (s2->rbuf != NULL) OPENSSL_free(s2->rbuf); |
| 359 | if (s2->wbuf != NULL) OPENSSL_free(s2->wbuf); |
| 360 | OPENSSL_cleanse(s2,sizeof *s2); |
| 361 | OPENSSL_free(s2); |
| 362 | s->s2=NULL; |
| 363 | } |
| 364 | |
| 365 | void ssl2_clear(SSL *s) |
| 366 | { |
| 367 | SSL2_STATE *s2; |
| 368 | unsigned char *rbuf,*wbuf; |
| 369 | |
| 370 | s2=s->s2; |
| 371 | |
| 372 | rbuf=s2->rbuf; |
| 373 | wbuf=s2->wbuf; |
| 374 | |
| 375 | memset(s2,0,sizeof *s2); |
| 376 | |
| 377 | s2->rbuf=rbuf; |
| 378 | s2->wbuf=wbuf; |
| 379 | s2->clear_text=1; |
| 380 | s->packet=s2->rbuf; |
| 381 | s->version=SSL2_VERSION; |
| 382 | s->packet_length=0; |
| 383 | } |
| 384 | |
| 385 | long ssl2_ctrl(SSL *s, int cmd, long larg, void *parg) |
| 386 | { |
| 387 | int ret=0; |
| 388 | |
| 389 | switch(cmd) |
| 390 | { |
| 391 | case SSL_CTRL_GET_SESSION_REUSED: |
| 392 | ret=s->hit; |
| 393 | break; |
| 394 | default: |
| 395 | break; |
| 396 | } |
| 397 | return(ret); |
| 398 | } |
| 399 | |
| 400 | long ssl2_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) |
| 401 | { |
| 402 | return(0); |
| 403 | } |
| 404 | |
| 405 | long ssl2_ctx_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) |
| 406 | { |
| 407 | return(0); |
| 408 | } |
| 409 | |
| 410 | long ssl2_ctx_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) |
| 411 | { |
| 412 | return(0); |
| 413 | } |
| 414 | |
| 415 | /* This function needs to check if the ciphers required are actually |
| 416 | * available */ |
| 417 | const SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p) |
| 418 | { |
| 419 | SSL_CIPHER c; |
| 420 | const SSL_CIPHER *cp; |
| 421 | unsigned long id; |
| 422 | |
| 423 | id=0x02000000L|((unsigned long)p[0]<<16L)| |
| 424 | ((unsigned long)p[1]<<8L)|(unsigned long)p[2]; |
| 425 | c.id=id; |
| 426 | cp = OBJ_bsearch_ssl_cipher_id(&c, ssl2_ciphers, SSL2_NUM_CIPHERS); |
| 427 | if ((cp == NULL) || (cp->valid == 0)) |
| 428 | return NULL; |
| 429 | else |
| 430 | return cp; |
| 431 | } |
| 432 | |
| 433 | int ssl2_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p) |
| 434 | { |
| 435 | long l; |
| 436 | |
| 437 | if (p != NULL) |
| 438 | { |
| 439 | l=c->id; |
| 440 | if ((l & 0xff000000) != 0x02000000) return(0); |
| 441 | p[0]=((unsigned char)(l>>16L))&0xFF; |
| 442 | p[1]=((unsigned char)(l>> 8L))&0xFF; |
| 443 | p[2]=((unsigned char)(l ))&0xFF; |
| 444 | } |
| 445 | return(3); |
| 446 | } |
| 447 | |
| 448 | int ssl2_generate_key_material(SSL *s) |
| 449 | { |
| 450 | unsigned int i; |
| 451 | EVP_MD_CTX ctx; |
| 452 | unsigned char *km; |
| 453 | unsigned char c='0'; |
| 454 | const EVP_MD *md5; |
| 455 | int md_size; |
| 456 | |
| 457 | md5 = EVP_md5(); |
| 458 | |
| 459 | #ifdef CHARSET_EBCDIC |
| 460 | c = os_toascii['0']; /* Must be an ASCII '0', not EBCDIC '0', |
| 461 | see SSLv2 docu */ |
| 462 | #endif |
| 463 | EVP_MD_CTX_init(&ctx); |
| 464 | km=s->s2->key_material; |
| 465 | |
| 466 | if (s->session->master_key_length < 0 || |
| 467 | s->session->master_key_length > (int)sizeof(s->session->master_key)) |
| 468 | { |
| 469 | SSLerr(SSL_F_SSL2_GENERATE_KEY_MATERIAL, ERR_R_INTERNAL_ERROR); |
| 470 | return 0; |
| 471 | } |
| 472 | md_size = EVP_MD_size(md5); |
| 473 | if (md_size < 0) |
| 474 | return 0; |
| 475 | for (i=0; i<s->s2->key_material_length; i += md_size) |
| 476 | { |
| 477 | if (((km - s->s2->key_material) + md_size) > |
| 478 | (int)sizeof(s->s2->key_material)) |
| 479 | { |
| 480 | /* EVP_DigestFinal_ex() below would write beyond buffer */ |
| 481 | SSLerr(SSL_F_SSL2_GENERATE_KEY_MATERIAL, ERR_R_INTERNAL_ERROR); |
| 482 | return 0; |
| 483 | } |
| 484 | |
| 485 | EVP_DigestInit_ex(&ctx, md5, NULL); |
| 486 | |
| 487 | OPENSSL_assert(s->session->master_key_length >= 0 |
| 488 | && s->session->master_key_length |
| 489 | < (int)sizeof(s->session->master_key)); |
| 490 | EVP_DigestUpdate(&ctx,s->session->master_key,s->session->master_key_length); |
| 491 | EVP_DigestUpdate(&ctx,&c,1); |
| 492 | c++; |
| 493 | EVP_DigestUpdate(&ctx,s->s2->challenge,s->s2->challenge_length); |
| 494 | EVP_DigestUpdate(&ctx,s->s2->conn_id,s->s2->conn_id_length); |
| 495 | EVP_DigestFinal_ex(&ctx,km,NULL); |
| 496 | km += md_size; |
| 497 | } |
| 498 | |
| 499 | EVP_MD_CTX_cleanup(&ctx); |
| 500 | return 1; |
| 501 | } |
| 502 | |
| 503 | void ssl2_return_error(SSL *s, int err) |
| 504 | { |
| 505 | if (!s->error) |
| 506 | { |
| 507 | s->error=3; |
| 508 | s->error_code=err; |
| 509 | |
| 510 | ssl2_write_error(s); |
| 511 | } |
| 512 | } |
| 513 | |
| 514 | |
| 515 | void ssl2_write_error(SSL *s) |
| 516 | { |
| 517 | unsigned char buf[3]; |
| 518 | int i,error; |
| 519 | |
| 520 | buf[0]=SSL2_MT_ERROR; |
| 521 | buf[1]=(s->error_code>>8)&0xff; |
| 522 | buf[2]=(s->error_code)&0xff; |
| 523 | |
| 524 | /* state=s->rwstate;*/ |
| 525 | |
| 526 | error=s->error; /* number of bytes left to write */ |
| 527 | s->error=0; |
| 528 | OPENSSL_assert(error >= 0 && error <= (int)sizeof(buf)); |
| 529 | i=ssl2_write(s,&(buf[3-error]),error); |
| 530 | |
| 531 | /* if (i == error) s->rwstate=state; */ |
| 532 | |
| 533 | if (i < 0) |
| 534 | s->error=error; |
| 535 | else |
| 536 | { |
| 537 | s->error=error-i; |
| 538 | |
| 539 | if (s->error == 0) |
| 540 | if (s->msg_callback) |
| 541 | s->msg_callback(1, s->version, 0, buf, 3, s, s->msg_callback_arg); /* ERROR */ |
| 542 | } |
| 543 | } |
| 544 | |
| 545 | int ssl2_shutdown(SSL *s) |
| 546 | { |
| 547 | s->shutdown=(SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN); |
| 548 | return(1); |
| 549 | } |
| 550 | #else /* !OPENSSL_NO_SSL2 */ |
| 551 | |
| 552 | # if PEDANTIC |
| 553 | static void *dummy=&dummy; |
| 554 | # endif |
| 555 | |
| 556 | #endif |