bss_acpt.c revision 656d9c7f52f88b3a3daccafa7655dec086c4756e
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* crypto/bio/bss_acpt.c */ 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * All rights reserved. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * This package is an SSL implementation written 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * by Eric Young (eay@cryptsoft.com). 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * The implementation was written so as to conform with Netscapes SSL. 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * This library is free for commercial and non-commercial use as long as 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * the following conditions are aheared to. The following conditions 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * apply to all code found in this distribution, be it the RC4, RSA, 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * lhash, DES, etc., code; not just the SSL code. The SSL documentation 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * included with this distribution is covered by the same copyright terms 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * except that the holder is Tim Hudson (tjh@cryptsoft.com). 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copyright remains Eric Young's, and as such any Copyright notices in 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * the code are not to be removed. 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * If this package is used in a product, Eric Young should be given attribution 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * as the author of the parts of the library used. 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * This can be in the form of a textual message at program startup or 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * in documentation (online or textual) provided with the package. 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) * Redistribution and use in source and binary forms, with or without 245d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) * modification, are permitted provided that the following conditions 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * are met: 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 1. Redistributions of source code must retain the copyright 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * notice, this list of conditions and the following disclaimer. 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 2. Redistributions in binary form must reproduce the above copyright 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * notice, this list of conditions and the following disclaimer in the 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * documentation and/or other materials provided with the distribution. 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 3. All advertising materials mentioning features or use of this software 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * must display the following acknowledgement: 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * "This product includes cryptographic software written by 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Eric Young (eay@cryptsoft.com)" 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * The word 'cryptographic' can be left out if the rouines from the library 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * being used are not cryptographic related :-). 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 4. If you include any Windows specific code (or a derivative thereof) from 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * the apps directory (application code) you must include an acknowledgement: 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * SUCH DAMAGE. 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * The licence and distribution terms for any publically available version or 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * derivative of this code cannot be changed. i.e. this code cannot simply be 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * copied and put under another distribution licence 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * [including the GNU Public Licence.] 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <stdio.h> 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <errno.h> 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define USE_SOCKETS 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "cryptlib.h" 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <openssl/bio.h> 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef OPENSSL_NO_SOCK 665f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 675f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#ifdef OPENSSL_SYS_WIN16 685f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#define SOCKET_PROTOCOL 0 /* more microsoft stupidity */ 695f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#else 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define SOCKET_PROTOCOL IPPROTO_TCP 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */ 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#undef FIONBIO 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 785d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)typedef struct bio_accept_st 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int state; 815d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) char *param_addr; 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int accept_sock; 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int accept_nbio; 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char *addr; 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int nbio; 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* If 0, it means normal, if 1, do a connect on bind failure, 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * and if there is no-one listening, bind with SO_REUSEADDR. 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * If 2, always use SO_REUSEADDR. */ 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int bind_mode; 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) BIO *bio_chain; 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } BIO_ACCEPT; 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int acpt_write(BIO *h, const char *buf, int num); 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int acpt_read(BIO *h, char *buf, int size); 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int acpt_puts(BIO *h, const char *str); 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static long acpt_ctrl(BIO *h, int cmd, long arg1, void *arg2); 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int acpt_new(BIO *h); 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int acpt_free(BIO *data); 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int acpt_state(BIO *b, BIO_ACCEPT *c); 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void acpt_close_socket(BIO *data); 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)BIO_ACCEPT *BIO_ACCEPT_new(void ); 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void BIO_ACCEPT_free(BIO_ACCEPT *a); 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define ACPT_S_BEFORE 1 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define ACPT_S_GET_ACCEPT_SOCKET 2 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define ACPT_S_OK 3 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static BIO_METHOD methods_acceptp= 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) BIO_TYPE_ACCEPT, 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "socket accept", 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) acpt_write, 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) acpt_read, 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) acpt_puts, 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NULL, /* connect_gets, */ 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) acpt_ctrl, 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) acpt_new, 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) acpt_free, 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NULL, 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 1235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)BIO_METHOD *BIO_s_accept(void) 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return(&methods_acceptp); 1275d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int acpt_new(BIO *bi) 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) BIO_ACCEPT *ba; 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bi->init=0; 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bi->num=INVALID_SOCKET; 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bi->flags=0; 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if ((ba=BIO_ACCEPT_new()) == NULL) 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return(0); 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bi->ptr=(char *)ba; 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ba->state=ACPT_S_BEFORE; 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bi->shutdown=1; 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return(1); 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)BIO_ACCEPT *BIO_ACCEPT_new(void) 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) BIO_ACCEPT *ret; 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if ((ret=(BIO_ACCEPT *)OPENSSL_malloc(sizeof(BIO_ACCEPT))) == NULL) 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return(NULL); 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) memset(ret,0,sizeof(BIO_ACCEPT)); 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ret->accept_sock=INVALID_SOCKET; 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ret->bind_mode=BIO_BIND_NORMAL; 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return(ret); 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void BIO_ACCEPT_free(BIO_ACCEPT *a) 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if(a == NULL) 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (a->param_addr != NULL) OPENSSL_free(a->param_addr); 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (a->addr != NULL) OPENSSL_free(a->addr); 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (a->bio_chain != NULL) BIO_free(a->bio_chain); 165 OPENSSL_free(a); 166 } 167 168static void acpt_close_socket(BIO *bio) 169 { 170 BIO_ACCEPT *c; 171 172 c=(BIO_ACCEPT *)bio->ptr; 173 if (c->accept_sock != INVALID_SOCKET) 174 { 175 shutdown(c->accept_sock,2); 176 closesocket(c->accept_sock); 177 c->accept_sock=INVALID_SOCKET; 178 bio->num=INVALID_SOCKET; 179 } 180 } 181 182static int acpt_free(BIO *a) 183 { 184 BIO_ACCEPT *data; 185 186 if (a == NULL) return(0); 187 data=(BIO_ACCEPT *)a->ptr; 188 189 if (a->shutdown) 190 { 191 acpt_close_socket(a); 192 BIO_ACCEPT_free(data); 193 a->ptr=NULL; 194 a->flags=0; 195 a->init=0; 196 } 197 return(1); 198 } 199 200static int acpt_state(BIO *b, BIO_ACCEPT *c) 201 { 202 BIO *bio=NULL,*dbio; 203 int s= -1; 204 int i; 205 206again: 207 switch (c->state) 208 { 209 case ACPT_S_BEFORE: 210 if (c->param_addr == NULL) 211 { 212 BIOerr(BIO_F_ACPT_STATE,BIO_R_NO_ACCEPT_PORT_SPECIFIED); 213 return(-1); 214 } 215 s=BIO_get_accept_socket(c->param_addr,c->bind_mode); 216 if (s == INVALID_SOCKET) 217 return(-1); 218 219 if (c->accept_nbio) 220 { 221 if (!BIO_socket_nbio(s,1)) 222 { 223 closesocket(s); 224 BIOerr(BIO_F_ACPT_STATE,BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET); 225 return(-1); 226 } 227 } 228 c->accept_sock=s; 229 b->num=s; 230 c->state=ACPT_S_GET_ACCEPT_SOCKET; 231 return(1); 232 /* break; */ 233 case ACPT_S_GET_ACCEPT_SOCKET: 234 if (b->next_bio != NULL) 235 { 236 c->state=ACPT_S_OK; 237 goto again; 238 } 239 BIO_clear_retry_flags(b); 240 b->retry_reason=0; 241 i=BIO_accept(c->accept_sock,&(c->addr)); 242 243 /* -2 return means we should retry */ 244 if(i == -2) 245 { 246 BIO_set_retry_special(b); 247 b->retry_reason=BIO_RR_ACCEPT; 248 return -1; 249 } 250 251 if (i < 0) return(i); 252 253 bio=BIO_new_socket(i,BIO_CLOSE); 254 if (bio == NULL) goto err; 255 256 BIO_set_callback(bio,BIO_get_callback(b)); 257 BIO_set_callback_arg(bio,BIO_get_callback_arg(b)); 258 259 if (c->nbio) 260 { 261 if (!BIO_socket_nbio(i,1)) 262 { 263 BIOerr(BIO_F_ACPT_STATE,BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET); 264 goto err; 265 } 266 } 267 268 /* If the accept BIO has an bio_chain, we dup it and 269 * put the new socket at the end. */ 270 if (c->bio_chain != NULL) 271 { 272 if ((dbio=BIO_dup_chain(c->bio_chain)) == NULL) 273 goto err; 274 if (!BIO_push(dbio,bio)) goto err; 275 bio=dbio; 276 } 277 if (BIO_push(b,bio) == NULL) goto err; 278 279 c->state=ACPT_S_OK; 280 return(1); 281err: 282 if (bio != NULL) 283 BIO_free(bio); 284 else if (s >= 0) 285 closesocket(s); 286 return(0); 287 /* break; */ 288 case ACPT_S_OK: 289 if (b->next_bio == NULL) 290 { 291 c->state=ACPT_S_GET_ACCEPT_SOCKET; 292 goto again; 293 } 294 return(1); 295 /* break; */ 296 default: 297 return(0); 298 /* break; */ 299 } 300 301 } 302 303static int acpt_read(BIO *b, char *out, int outl) 304 { 305 int ret=0; 306 BIO_ACCEPT *data; 307 308 BIO_clear_retry_flags(b); 309 data=(BIO_ACCEPT *)b->ptr; 310 311 while (b->next_bio == NULL) 312 { 313 ret=acpt_state(b,data); 314 if (ret <= 0) return(ret); 315 } 316 317 ret=BIO_read(b->next_bio,out,outl); 318 BIO_copy_next_retry(b); 319 return(ret); 320 } 321 322static int acpt_write(BIO *b, const char *in, int inl) 323 { 324 int ret; 325 BIO_ACCEPT *data; 326 327 BIO_clear_retry_flags(b); 328 data=(BIO_ACCEPT *)b->ptr; 329 330 while (b->next_bio == NULL) 331 { 332 ret=acpt_state(b,data); 333 if (ret <= 0) return(ret); 334 } 335 336 ret=BIO_write(b->next_bio,in,inl); 337 BIO_copy_next_retry(b); 338 return(ret); 339 } 340 341static long acpt_ctrl(BIO *b, int cmd, long num, void *ptr) 342 { 343 BIO *dbio; 344 int *ip; 345 long ret=1; 346 BIO_ACCEPT *data; 347 char **pp; 348 349 data=(BIO_ACCEPT *)b->ptr; 350 351 switch (cmd) 352 { 353 case BIO_CTRL_RESET: 354 ret=0; 355 data->state=ACPT_S_BEFORE; 356 acpt_close_socket(b); 357 b->flags=0; 358 break; 359 case BIO_C_DO_STATE_MACHINE: 360 /* use this one to start the connection */ 361 ret=(long)acpt_state(b,data); 362 break; 363 case BIO_C_SET_ACCEPT: 364 if (ptr != NULL) 365 { 366 if (num == 0) 367 { 368 b->init=1; 369 if (data->param_addr != NULL) 370 OPENSSL_free(data->param_addr); 371 data->param_addr=BUF_strdup(ptr); 372 } 373 else if (num == 1) 374 { 375 data->accept_nbio=(ptr != NULL); 376 } 377 else if (num == 2) 378 { 379 if (data->bio_chain != NULL) 380 BIO_free(data->bio_chain); 381 data->bio_chain=(BIO *)ptr; 382 } 383 } 384 break; 385 case BIO_C_SET_NBIO: 386 data->nbio=(int)num; 387 break; 388 case BIO_C_SET_FD: 389 b->init=1; 390 b->num= *((int *)ptr); 391 data->accept_sock=b->num; 392 data->state=ACPT_S_GET_ACCEPT_SOCKET; 393 b->shutdown=(int)num; 394 b->init=1; 395 break; 396 case BIO_C_GET_FD: 397 if (b->init) 398 { 399 ip=(int *)ptr; 400 if (ip != NULL) 401 *ip=data->accept_sock; 402 ret=data->accept_sock; 403 } 404 else 405 ret= -1; 406 break; 407 case BIO_C_GET_ACCEPT: 408 if (b->init) 409 { 410 if (ptr != NULL) 411 { 412 pp=(char **)ptr; 413 *pp=data->param_addr; 414 } 415 else 416 ret= -1; 417 } 418 else 419 ret= -1; 420 break; 421 case BIO_CTRL_GET_CLOSE: 422 ret=b->shutdown; 423 break; 424 case BIO_CTRL_SET_CLOSE: 425 b->shutdown=(int)num; 426 break; 427 case BIO_CTRL_PENDING: 428 case BIO_CTRL_WPENDING: 429 ret=0; 430 break; 431 case BIO_CTRL_FLUSH: 432 break; 433 case BIO_C_SET_BIND_MODE: 434 data->bind_mode=(int)num; 435 break; 436 case BIO_C_GET_BIND_MODE: 437 ret=(long)data->bind_mode; 438 break; 439 case BIO_CTRL_DUP: 440 dbio=(BIO *)ptr; 441/* if (data->param_port) EAY EAY 442 BIO_set_port(dbio,data->param_port); 443 if (data->param_hostname) 444 BIO_set_hostname(dbio,data->param_hostname); 445 BIO_set_nbio(dbio,data->nbio); */ 446 break; 447 448 default: 449 ret=0; 450 break; 451 } 452 return(ret); 453 } 454 455static int acpt_puts(BIO *bp, const char *str) 456 { 457 int n,ret; 458 459 n=strlen(str); 460 ret=acpt_write(bp,str,n); 461 return(ret); 462 } 463 464BIO *BIO_new_accept(char *str) 465 { 466 BIO *ret; 467 468 ret=BIO_new(BIO_s_accept()); 469 if (ret == NULL) return(NULL); 470 if (BIO_set_accept_port(ret,str)) 471 return(ret); 472 else 473 { 474 BIO_free(ret); 475 return(NULL); 476 } 477 } 478 479#endif 480