155714Skris/* crypto/bio/b_sock.c */ 255714Skris/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 355714Skris * All rights reserved. 455714Skris * 555714Skris * This package is an SSL implementation written 655714Skris * by Eric Young (eay@cryptsoft.com). 755714Skris * The implementation was written so as to conform with Netscapes SSL. 8296465Sdelphij * 955714Skris * This library is free for commercial and non-commercial use as long as 1055714Skris * the following conditions are aheared to. The following conditions 1155714Skris * apply to all code found in this distribution, be it the RC4, RSA, 1255714Skris * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1355714Skris * included with this distribution is covered by the same copyright terms 1455714Skris * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15296465Sdelphij * 1655714Skris * Copyright remains Eric Young's, and as such any Copyright notices in 1755714Skris * the code are not to be removed. 1855714Skris * If this package is used in a product, Eric Young should be given attribution 1955714Skris * as the author of the parts of the library used. 2055714Skris * This can be in the form of a textual message at program startup or 2155714Skris * in documentation (online or textual) provided with the package. 22296465Sdelphij * 2355714Skris * Redistribution and use in source and binary forms, with or without 2455714Skris * modification, are permitted provided that the following conditions 2555714Skris * are met: 2655714Skris * 1. Redistributions of source code must retain the copyright 2755714Skris * notice, this list of conditions and the following disclaimer. 2855714Skris * 2. Redistributions in binary form must reproduce the above copyright 2955714Skris * notice, this list of conditions and the following disclaimer in the 3055714Skris * documentation and/or other materials provided with the distribution. 3155714Skris * 3. All advertising materials mentioning features or use of this software 3255714Skris * must display the following acknowledgement: 3355714Skris * "This product includes cryptographic software written by 3455714Skris * Eric Young (eay@cryptsoft.com)" 3555714Skris * The word 'cryptographic' can be left out if the rouines from the library 3655714Skris * being used are not cryptographic related :-). 37296465Sdelphij * 4. If you include any Windows specific code (or a derivative thereof) from 3855714Skris * the apps directory (application code) you must include an acknowledgement: 3955714Skris * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40296465Sdelphij * 4155714Skris * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4255714Skris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4355714Skris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4455714Skris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4555714Skris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4655714Skris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4755714Skris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4855714Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4955714Skris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5055714Skris * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5155714Skris * SUCH DAMAGE. 52296465Sdelphij * 5355714Skris * The licence and distribution terms for any publically available version or 5455714Skris * derivative of this code cannot be changed. i.e. this code cannot simply be 5555714Skris * copied and put under another distribution licence 5655714Skris * [including the GNU Public Licence.] 5755714Skris */ 5855714Skris 5955714Skris#include <stdio.h> 6055714Skris#include <stdlib.h> 6155714Skris#include <errno.h> 6255714Skris#define USE_SOCKETS 6355714Skris#include "cryptlib.h" 6455714Skris#include <openssl/bio.h> 65160814Ssimon#if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_BSDSOCK) 66296465Sdelphij# include <netdb.h> 67296465Sdelphij# if defined(NETWARE_CLIB) 68296465Sdelphij# include <sys/ioctl.h> 69194206SsimonNETDB_DEFINE_CONTEXT 70296465Sdelphij# endif 71160814Ssimon#endif 72160814Ssimon#ifndef OPENSSL_NO_SOCK 73296465Sdelphij# ifdef OPENSSL_SYS_WIN16 74296465Sdelphij# define SOCKET_PROTOCOL 0 /* more microsoft stupidity */ 75296465Sdelphij# else 76296465Sdelphij# define SOCKET_PROTOCOL IPPROTO_TCP 77296465Sdelphij# endif 78296465Sdelphij# ifdef SO_MAXCONN 79296465Sdelphij# define MAX_LISTEN SO_MAXCONN 80296465Sdelphij# elif defined(SOMAXCONN) 81296465Sdelphij# define MAX_LISTEN SOMAXCONN 82296465Sdelphij# else 83296465Sdelphij# define MAX_LISTEN 32 84296465Sdelphij# endif 85296465Sdelphij# if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)) 86296465Sdelphijstatic int wsa_init_done = 0; 87296465Sdelphij# endif 88160814Ssimon 89296465Sdelphij# if 0 90296465Sdelphijstatic unsigned long BIO_ghbn_hits = 0L; 91296465Sdelphijstatic unsigned long BIO_ghbn_miss = 0L; 9255714Skris 93296465Sdelphij# define GHBN_NUM 4 94296465Sdelphijstatic struct ghbn_cache_st { 95296465Sdelphij char name[129]; 96296465Sdelphij struct hostent *ent; 97296465Sdelphij unsigned long order; 98296465Sdelphij} ghbn_cache[GHBN_NUM]; 99296465Sdelphij# endif 10055714Skris 101296465Sdelphijstatic int get_ip(const char *str, unsigned char *ip); 102296465Sdelphij# if 0 10355714Skrisstatic void ghbn_free(struct hostent *a); 10455714Skrisstatic struct hostent *ghbn_dup(struct hostent *a); 105296465Sdelphij# endif 10655714Skrisint BIO_get_host_ip(const char *str, unsigned char *ip) 107296465Sdelphij{ 108296465Sdelphij int i; 109296465Sdelphij int err = 1; 110296465Sdelphij int locked = 0; 111296465Sdelphij struct hostent *he; 11255714Skris 113296465Sdelphij i = get_ip(str, ip); 114296465Sdelphij if (i < 0) { 115296465Sdelphij BIOerr(BIO_F_BIO_GET_HOST_IP, BIO_R_INVALID_IP_ADDRESS); 116296465Sdelphij goto err; 117296465Sdelphij } 11855714Skris 119296465Sdelphij /* 120296465Sdelphij * At this point, we have something that is most probably correct in some 121296465Sdelphij * way, so let's init the socket. 122296465Sdelphij */ 123296465Sdelphij if (BIO_sock_init() != 1) 124296465Sdelphij return 0; /* don't generate another error code here */ 12555714Skris 126296465Sdelphij /* 127296465Sdelphij * If the string actually contained an IP address, we need not do 128296465Sdelphij * anything more 129296465Sdelphij */ 130296465Sdelphij if (i > 0) 131296465Sdelphij return (1); 13268651Skris 133296465Sdelphij /* do a gethostbyname */ 134296465Sdelphij CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); 135296465Sdelphij locked = 1; 136296465Sdelphij he = BIO_gethostbyname(str); 137296465Sdelphij if (he == NULL) { 138296465Sdelphij BIOerr(BIO_F_BIO_GET_HOST_IP, BIO_R_BAD_HOSTNAME_LOOKUP); 139296465Sdelphij goto err; 140296465Sdelphij } 14155714Skris 142296465Sdelphij /* cast to short because of win16 winsock definition */ 143296465Sdelphij if ((short)he->h_addrtype != AF_INET) { 144296465Sdelphij BIOerr(BIO_F_BIO_GET_HOST_IP, 145296465Sdelphij BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET); 146296465Sdelphij goto err; 147296465Sdelphij } 148296465Sdelphij for (i = 0; i < 4; i++) 149296465Sdelphij ip[i] = he->h_addr_list[0][i]; 150296465Sdelphij err = 0; 15155714Skris 15255714Skris err: 153296465Sdelphij if (locked) 154296465Sdelphij CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); 155296465Sdelphij if (err) { 156296465Sdelphij ERR_add_error_data(2, "host=", str); 157296465Sdelphij return 0; 158296465Sdelphij } else 159296465Sdelphij return 1; 160296465Sdelphij} 16155714Skris 16255714Skrisint BIO_get_port(const char *str, unsigned short *port_ptr) 163296465Sdelphij{ 164296465Sdelphij int i; 165296465Sdelphij struct servent *s; 16655714Skris 167296465Sdelphij if (str == NULL) { 168296465Sdelphij BIOerr(BIO_F_BIO_GET_PORT, BIO_R_NO_PORT_DEFINED); 169296465Sdelphij return (0); 170296465Sdelphij } 171296465Sdelphij i = atoi(str); 172296465Sdelphij if (i != 0) 173296465Sdelphij *port_ptr = (unsigned short)i; 174296465Sdelphij else { 175296465Sdelphij CRYPTO_w_lock(CRYPTO_LOCK_GETSERVBYNAME); 176296465Sdelphij /* 177296465Sdelphij * Note: under VMS with SOCKETSHR, it seems like the first parameter 178296465Sdelphij * is 'char *', instead of 'const char *' 179296465Sdelphij */ 180296465Sdelphij# ifndef CONST_STRICT 181296465Sdelphij s = getservbyname((char *)str, "tcp"); 182296465Sdelphij# else 183296465Sdelphij s = getservbyname(str, "tcp"); 184296465Sdelphij# endif 185296465Sdelphij if (s != NULL) 186296465Sdelphij *port_ptr = ntohs((unsigned short)s->s_port); 187296465Sdelphij CRYPTO_w_unlock(CRYPTO_LOCK_GETSERVBYNAME); 188296465Sdelphij if (s == NULL) { 189296465Sdelphij if (strcmp(str, "http") == 0) 190296465Sdelphij *port_ptr = 80; 191296465Sdelphij else if (strcmp(str, "telnet") == 0) 192296465Sdelphij *port_ptr = 23; 193296465Sdelphij else if (strcmp(str, "socks") == 0) 194296465Sdelphij *port_ptr = 1080; 195296465Sdelphij else if (strcmp(str, "https") == 0) 196296465Sdelphij *port_ptr = 443; 197296465Sdelphij else if (strcmp(str, "ssl") == 0) 198296465Sdelphij *port_ptr = 443; 199296465Sdelphij else if (strcmp(str, "ftp") == 0) 200296465Sdelphij *port_ptr = 21; 201296465Sdelphij else if (strcmp(str, "gopher") == 0) 202296465Sdelphij *port_ptr = 70; 203296465Sdelphij# if 0 204296465Sdelphij else if (strcmp(str, "wais") == 0) 205296465Sdelphij *port_ptr = 21; 206296465Sdelphij# endif 207296465Sdelphij else { 208296465Sdelphij SYSerr(SYS_F_GETSERVBYNAME, get_last_socket_error()); 209296465Sdelphij ERR_add_error_data(3, "service='", str, "'"); 210296465Sdelphij return (0); 211296465Sdelphij } 212296465Sdelphij } 213296465Sdelphij } 214296465Sdelphij return (1); 215296465Sdelphij} 21655714Skris 21755714Skrisint BIO_sock_error(int sock) 218296465Sdelphij{ 219296465Sdelphij int j, i; 220296465Sdelphij int size; 22155714Skris 222296465Sdelphij size = sizeof(int); 223296465Sdelphij /* 224296465Sdelphij * Note: under Windows the third parameter is of type (char *) whereas 225296465Sdelphij * under other systems it is (void *) if you don't have a cast it will 226296465Sdelphij * choke the compiler: if you do have a cast then you can either go for 227296465Sdelphij * (char *) or (void *). 228296465Sdelphij */ 229296465Sdelphij i = getsockopt(sock, SOL_SOCKET, SO_ERROR, (void *)&j, (void *)&size); 230296465Sdelphij if (i < 0) 231296465Sdelphij return (1); 232296465Sdelphij else 233296465Sdelphij return (j); 234296465Sdelphij} 235296465Sdelphij 236296465Sdelphij# if 0 23755714Skrislong BIO_ghbn_ctrl(int cmd, int iarg, char *parg) 238296465Sdelphij{ 239296465Sdelphij int i; 240296465Sdelphij char **p; 24155714Skris 242296465Sdelphij switch (cmd) { 243296465Sdelphij case BIO_GHBN_CTRL_HITS: 244296465Sdelphij return (BIO_ghbn_hits); 245296465Sdelphij /* break; */ 246296465Sdelphij case BIO_GHBN_CTRL_MISSES: 247296465Sdelphij return (BIO_ghbn_miss); 248296465Sdelphij /* break; */ 249296465Sdelphij case BIO_GHBN_CTRL_CACHE_SIZE: 250296465Sdelphij return (GHBN_NUM); 251296465Sdelphij /* break; */ 252296465Sdelphij case BIO_GHBN_CTRL_GET_ENTRY: 253296465Sdelphij if ((iarg >= 0) && (iarg < GHBN_NUM) && (ghbn_cache[iarg].order > 0)) { 254296465Sdelphij p = (char **)parg; 255296465Sdelphij if (p == NULL) 256296465Sdelphij return (0); 257296465Sdelphij *p = ghbn_cache[iarg].name; 258296465Sdelphij ghbn_cache[iarg].name[128] = '\0'; 259296465Sdelphij return (1); 260296465Sdelphij } 261296465Sdelphij return (0); 262296465Sdelphij /* break; */ 263296465Sdelphij case BIO_GHBN_CTRL_FLUSH: 264296465Sdelphij for (i = 0; i < GHBN_NUM; i++) 265296465Sdelphij ghbn_cache[i].order = 0; 266296465Sdelphij break; 267296465Sdelphij default: 268296465Sdelphij return (0); 269296465Sdelphij } 270296465Sdelphij return (1); 271296465Sdelphij} 272296465Sdelphij# endif 27355714Skris 274296465Sdelphij# if 0 27555714Skrisstatic struct hostent *ghbn_dup(struct hostent *a) 276296465Sdelphij{ 277296465Sdelphij struct hostent *ret; 278296465Sdelphij int i, j; 27955714Skris 280296465Sdelphij MemCheck_off(); 281296465Sdelphij ret = (struct hostent *)OPENSSL_malloc(sizeof(struct hostent)); 282296465Sdelphij if (ret == NULL) 283296465Sdelphij return (NULL); 284296465Sdelphij memset(ret, 0, sizeof(struct hostent)); 28555714Skris 286296465Sdelphij for (i = 0; a->h_aliases[i] != NULL; i++) ; 287296465Sdelphij i++; 288296465Sdelphij ret->h_aliases = (char **)OPENSSL_malloc(i * sizeof(char *)); 289296465Sdelphij if (ret->h_aliases == NULL) 290296465Sdelphij goto err; 291296465Sdelphij memset(ret->h_aliases, 0, i * sizeof(char *)); 29255714Skris 293296465Sdelphij for (i = 0; a->h_addr_list[i] != NULL; i++) ; 294296465Sdelphij i++; 295296465Sdelphij ret->h_addr_list = (char **)OPENSSL_malloc(i * sizeof(char *)); 296296465Sdelphij if (ret->h_addr_list == NULL) 297296465Sdelphij goto err; 298296465Sdelphij memset(ret->h_addr_list, 0, i * sizeof(char *)); 29955714Skris 300296465Sdelphij j = strlen(a->h_name) + 1; 301296465Sdelphij if ((ret->h_name = OPENSSL_malloc(j)) == NULL) 302296465Sdelphij goto err; 303296465Sdelphij memcpy((char *)ret->h_name, a->h_name, j); 304296465Sdelphij for (i = 0; a->h_aliases[i] != NULL; i++) { 305296465Sdelphij j = strlen(a->h_aliases[i]) + 1; 306296465Sdelphij if ((ret->h_aliases[i] = OPENSSL_malloc(j)) == NULL) 307296465Sdelphij goto err; 308296465Sdelphij memcpy(ret->h_aliases[i], a->h_aliases[i], j); 309296465Sdelphij } 310296465Sdelphij ret->h_length = a->h_length; 311296465Sdelphij ret->h_addrtype = a->h_addrtype; 312296465Sdelphij for (i = 0; a->h_addr_list[i] != NULL; i++) { 313296465Sdelphij if ((ret->h_addr_list[i] = OPENSSL_malloc(a->h_length)) == NULL) 314296465Sdelphij goto err; 315296465Sdelphij memcpy(ret->h_addr_list[i], a->h_addr_list[i], a->h_length); 316296465Sdelphij } 317296465Sdelphij if (0) { 318296465Sdelphij err: 319296465Sdelphij if (ret != NULL) 320296465Sdelphij ghbn_free(ret); 321296465Sdelphij ret = NULL; 322296465Sdelphij } 323296465Sdelphij MemCheck_on(); 324296465Sdelphij return (ret); 325296465Sdelphij} 32655714Skris 32755714Skrisstatic void ghbn_free(struct hostent *a) 328296465Sdelphij{ 329296465Sdelphij int i; 33055714Skris 331296465Sdelphij if (a == NULL) 332296465Sdelphij return; 33355714Skris 334296465Sdelphij if (a->h_aliases != NULL) { 335296465Sdelphij for (i = 0; a->h_aliases[i] != NULL; i++) 336296465Sdelphij OPENSSL_free(a->h_aliases[i]); 337296465Sdelphij OPENSSL_free(a->h_aliases); 338296465Sdelphij } 339296465Sdelphij if (a->h_addr_list != NULL) { 340296465Sdelphij for (i = 0; a->h_addr_list[i] != NULL; i++) 341296465Sdelphij OPENSSL_free(a->h_addr_list[i]); 342296465Sdelphij OPENSSL_free(a->h_addr_list); 343296465Sdelphij } 344296465Sdelphij if (a->h_name != NULL) 345296465Sdelphij OPENSSL_free(a->h_name); 346296465Sdelphij OPENSSL_free(a); 347296465Sdelphij} 348109998Smarkm 349296465Sdelphij# endif 35055714Skris 35155714Skrisstruct hostent *BIO_gethostbyname(const char *name) 352296465Sdelphij{ 353296465Sdelphij# if 1 354296465Sdelphij /* 355296465Sdelphij * Caching gethostbyname() results forever is wrong, so we have to let 356296465Sdelphij * the true gethostbyname() worry about this 357296465Sdelphij */ 358296465Sdelphij# if (defined(NETWARE_BSDSOCK) && !defined(__NOVELL_LIBC__)) 359296465Sdelphij return gethostbyname((char *)name); 360296465Sdelphij# else 361296465Sdelphij return gethostbyname(name); 362296465Sdelphij# endif 363296465Sdelphij# else 364296465Sdelphij struct hostent *ret; 365296465Sdelphij int i, lowi = 0, j; 366296465Sdelphij unsigned long low = (unsigned long)-1; 36755714Skris 36889837Skris# if 0 369296465Sdelphij /* 370296465Sdelphij * It doesn't make sense to use locking here: The function interface is 371296465Sdelphij * not thread-safe, because threads can never be sure when some other 372296465Sdelphij * thread destroys the data they were given a pointer to. 373296465Sdelphij */ 374296465Sdelphij CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); 37589837Skris# endif 376296465Sdelphij j = strlen(name); 377296465Sdelphij if (j < 128) { 378296465Sdelphij for (i = 0; i < GHBN_NUM; i++) { 379296465Sdelphij if (low > ghbn_cache[i].order) { 380296465Sdelphij low = ghbn_cache[i].order; 381296465Sdelphij lowi = i; 382296465Sdelphij } 383296465Sdelphij if (ghbn_cache[i].order > 0) { 384296465Sdelphij if (strncmp(name, ghbn_cache[i].name, 128) == 0) 385296465Sdelphij break; 386296465Sdelphij } 387296465Sdelphij } 388296465Sdelphij } else 389296465Sdelphij i = GHBN_NUM; 39055714Skris 391296465Sdelphij if (i == GHBN_NUM) { /* no hit */ 392296465Sdelphij BIO_ghbn_miss++; 393296465Sdelphij /* 394296465Sdelphij * Note: under VMS with SOCKETSHR, it seems like the first parameter 395296465Sdelphij * is 'char *', instead of 'const char *' 396296465Sdelphij */ 39789837Skris# ifndef CONST_STRICT 398296465Sdelphij ret = gethostbyname((char *)name); 399194206Ssimon# else 400296465Sdelphij ret = gethostbyname(name); 40189837Skris# endif 40255714Skris 403296465Sdelphij if (ret == NULL) 404296465Sdelphij goto end; 405296465Sdelphij if (j > 128) { /* too big to cache */ 40689837Skris# if 0 407296465Sdelphij /* 408296465Sdelphij * If we were trying to make this function thread-safe (which is 409296465Sdelphij * bound to fail), we'd have to give up in this case (or allocate 410296465Sdelphij * more memory). 411296465Sdelphij */ 412296465Sdelphij ret = NULL; 41389837Skris# endif 414296465Sdelphij goto end; 415296465Sdelphij } 41655714Skris 417296465Sdelphij /* else add to cache */ 418296465Sdelphij if (ghbn_cache[lowi].ent != NULL) 419296465Sdelphij ghbn_free(ghbn_cache[lowi].ent); /* XXX not thread-safe */ 420296465Sdelphij ghbn_cache[lowi].name[0] = '\0'; 42155714Skris 422296465Sdelphij if ((ret = ghbn_cache[lowi].ent = ghbn_dup(ret)) == NULL) { 423296465Sdelphij BIOerr(BIO_F_BIO_GETHOSTBYNAME, ERR_R_MALLOC_FAILURE); 424296465Sdelphij goto end; 425296465Sdelphij } 426296465Sdelphij strncpy(ghbn_cache[lowi].name, name, 128); 427296465Sdelphij ghbn_cache[lowi].order = BIO_ghbn_miss + BIO_ghbn_hits; 428296465Sdelphij } else { 429296465Sdelphij BIO_ghbn_hits++; 430296465Sdelphij ret = ghbn_cache[i].ent; 431296465Sdelphij ghbn_cache[i].order = BIO_ghbn_miss + BIO_ghbn_hits; 432296465Sdelphij } 433296465Sdelphij end: 43489837Skris# if 0 435296465Sdelphij CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); 43689837Skris# endif 437296465Sdelphij return (ret); 438296465Sdelphij# endif 439296465Sdelphij} 44055714Skris 44155714Skrisint BIO_sock_init(void) 442296465Sdelphij{ 443296465Sdelphij# ifdef OPENSSL_SYS_WINDOWS 444296465Sdelphij static struct WSAData wsa_state; 44555714Skris 446296465Sdelphij if (!wsa_init_done) { 447296465Sdelphij int err; 448160814Ssimon 449296465Sdelphij wsa_init_done = 1; 450296465Sdelphij memset(&wsa_state, 0, sizeof(wsa_state)); 451296465Sdelphij if (WSAStartup(0x0101, &wsa_state) != 0) { 452296465Sdelphij err = WSAGetLastError(); 453296465Sdelphij SYSerr(SYS_F_WSASTARTUP, err); 454296465Sdelphij BIOerr(BIO_F_BIO_SOCK_INIT, BIO_R_WSASTARTUP); 455296465Sdelphij return (-1); 456296465Sdelphij } 457296465Sdelphij } 458296465Sdelphij# endif /* OPENSSL_SYS_WINDOWS */ 459296465Sdelphij# ifdef WATT32 460296465Sdelphij extern int _watt_do_exit; 461296465Sdelphij _watt_do_exit = 0; /* don't make sock_init() call exit() */ 462296465Sdelphij if (sock_init()) 463296465Sdelphij return (-1); 464296465Sdelphij# endif 465296465Sdelphij 466296465Sdelphij# if defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) 467160814Ssimon WORD wVerReq; 468160814Ssimon WSADATA wsaData; 469160814Ssimon int err; 470160814Ssimon 471296465Sdelphij if (!wsa_init_done) { 472296465Sdelphij wsa_init_done = 1; 473296465Sdelphij wVerReq = MAKEWORD(2, 0); 474296465Sdelphij err = WSAStartup(wVerReq, &wsaData); 475296465Sdelphij if (err != 0) { 476296465Sdelphij SYSerr(SYS_F_WSASTARTUP, err); 477296465Sdelphij BIOerr(BIO_F_BIO_SOCK_INIT, BIO_R_WSASTARTUP); 478296465Sdelphij return (-1); 479296465Sdelphij } 480296465Sdelphij } 481296465Sdelphij# endif 482160814Ssimon 483296465Sdelphij return (1); 484296465Sdelphij} 48555714Skris 48655714Skrisvoid BIO_sock_cleanup(void) 487296465Sdelphij{ 488296465Sdelphij# ifdef OPENSSL_SYS_WINDOWS 489296465Sdelphij if (wsa_init_done) { 490296465Sdelphij wsa_init_done = 0; 491296465Sdelphij# ifndef OPENSSL_SYS_WINCE 492296465Sdelphij WSACancelBlockingCall(); /* Winsock 1.1 specific */ 493296465Sdelphij# endif 494160814Ssimon WSACleanup(); 495296465Sdelphij } 496296465Sdelphij# elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) 497296465Sdelphij if (wsa_init_done) { 498296465Sdelphij wsa_init_done = 0; 499296465Sdelphij WSACleanup(); 500296465Sdelphij } 501296465Sdelphij# endif 502296465Sdelphij} 50355714Skris 504296465Sdelphij# if !defined(OPENSSL_SYS_VMS) || __VMS_VER >= 70000000 50555714Skris 506111147Snectarint BIO_socket_ioctl(int fd, long type, void *arg) 507296465Sdelphij{ 508296465Sdelphij int i; 50955714Skris 510296465Sdelphij# ifdef __DJGPP__ 511296465Sdelphij i = ioctlsocket(fd, type, (char *)arg); 512296465Sdelphij# else 513296465Sdelphij i = ioctlsocket(fd, type, arg); 514296465Sdelphij# endif /* __DJGPP__ */ 515296465Sdelphij if (i < 0) 516296465Sdelphij SYSerr(SYS_F_IOCTLSOCKET, get_last_socket_error()); 517296465Sdelphij return (i); 518296465Sdelphij} 519296465Sdelphij# endif /* __VMS_VER */ 52055714Skris 521296465Sdelphij/* 522296465Sdelphij * The reason I have implemented this instead of using sscanf is because 523296465Sdelphij * Visual C 1.52c gives an unresolved external when linking a DLL :-( 524296465Sdelphij */ 52555714Skrisstatic int get_ip(const char *str, unsigned char ip[4]) 526296465Sdelphij{ 527296465Sdelphij unsigned int tmp[4]; 528296465Sdelphij int num = 0, c, ok = 0; 52955714Skris 530296465Sdelphij tmp[0] = tmp[1] = tmp[2] = tmp[3] = 0; 53155714Skris 532296465Sdelphij for (;;) { 533296465Sdelphij c = *(str++); 534296465Sdelphij if ((c >= '0') && (c <= '9')) { 535296465Sdelphij ok = 1; 536296465Sdelphij tmp[num] = tmp[num] * 10 + c - '0'; 537296465Sdelphij if (tmp[num] > 255) 538296465Sdelphij return (0); 539296465Sdelphij } else if (c == '.') { 540296465Sdelphij if (!ok) 541296465Sdelphij return (-1); 542296465Sdelphij if (num == 3) 543296465Sdelphij return (0); 544296465Sdelphij num++; 545296465Sdelphij ok = 0; 546296465Sdelphij } else if (c == '\0' && (num == 3) && ok) 547296465Sdelphij break; 548296465Sdelphij else 549296465Sdelphij return (0); 550296465Sdelphij } 551296465Sdelphij ip[0] = tmp[0]; 552296465Sdelphij ip[1] = tmp[1]; 553296465Sdelphij ip[2] = tmp[2]; 554296465Sdelphij ip[3] = tmp[3]; 555296465Sdelphij return (1); 556296465Sdelphij} 55755714Skris 55855714Skrisint BIO_get_accept_socket(char *host, int bind_mode) 559296465Sdelphij{ 560296465Sdelphij int ret = 0; 561296465Sdelphij struct sockaddr_in server, client; 562296465Sdelphij int s = INVALID_SOCKET, cs; 563296465Sdelphij unsigned char ip[4]; 564296465Sdelphij unsigned short port; 565296465Sdelphij char *str = NULL, *e; 566296465Sdelphij const char *h, *p; 567296465Sdelphij unsigned long l; 568296465Sdelphij int err_num; 56955714Skris 570296465Sdelphij if (BIO_sock_init() != 1) 571296465Sdelphij return (INVALID_SOCKET); 57255714Skris 573296465Sdelphij if ((str = BUF_strdup(host)) == NULL) 574296465Sdelphij return (INVALID_SOCKET); 57555714Skris 576296465Sdelphij h = p = NULL; 577296465Sdelphij h = str; 578296465Sdelphij for (e = str; *e; e++) { 579296465Sdelphij if (*e == ':') { 580296465Sdelphij p = &(e[1]); 581296465Sdelphij *e = '\0'; 582296465Sdelphij } else if (*e == '/') { 583296465Sdelphij *e = '\0'; 584296465Sdelphij break; 585296465Sdelphij } 586296465Sdelphij } 58755714Skris 588296465Sdelphij if (p == NULL) { 589296465Sdelphij p = h; 590296465Sdelphij h = "*"; 591296465Sdelphij } 59255714Skris 593296465Sdelphij if (!BIO_get_port(p, &port)) 594296465Sdelphij goto err; 59555714Skris 596296465Sdelphij memset((char *)&server, 0, sizeof(server)); 597296465Sdelphij server.sin_family = AF_INET; 598296465Sdelphij server.sin_port = htons(port); 59955714Skris 600296465Sdelphij if (strcmp(h, "*") == 0) 601296465Sdelphij server.sin_addr.s_addr = INADDR_ANY; 602296465Sdelphij else { 603296465Sdelphij if (!BIO_get_host_ip(h, &(ip[0]))) 604296465Sdelphij goto err; 605296465Sdelphij l = (unsigned long) 606296465Sdelphij ((unsigned long)ip[0] << 24L) | 607296465Sdelphij ((unsigned long)ip[1] << 16L) | 608296465Sdelphij ((unsigned long)ip[2] << 8L) | ((unsigned long)ip[3]); 609296465Sdelphij server.sin_addr.s_addr = htonl(l); 610296465Sdelphij } 61155714Skris 612296465Sdelphij again: 613296465Sdelphij s = socket(AF_INET, SOCK_STREAM, SOCKET_PROTOCOL); 614296465Sdelphij if (s == INVALID_SOCKET) { 615296465Sdelphij SYSerr(SYS_F_SOCKET, get_last_socket_error()); 616296465Sdelphij ERR_add_error_data(3, "port='", host, "'"); 617296465Sdelphij BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET, BIO_R_UNABLE_TO_CREATE_SOCKET); 618296465Sdelphij goto err; 619296465Sdelphij } 620296465Sdelphij# ifdef SO_REUSEADDR 621296465Sdelphij if (bind_mode == BIO_BIND_REUSEADDR) { 622296465Sdelphij int i = 1; 62355714Skris 624296465Sdelphij ret = setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (char *)&i, sizeof(i)); 625296465Sdelphij bind_mode = BIO_BIND_NORMAL; 626296465Sdelphij } 627296465Sdelphij# endif 628296465Sdelphij if (bind(s, (struct sockaddr *)&server, sizeof(server)) == -1) { 629296465Sdelphij# ifdef SO_REUSEADDR 630296465Sdelphij err_num = get_last_socket_error(); 631296465Sdelphij if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) && 632296465Sdelphij# ifdef OPENSSL_SYS_WINDOWS 633296465Sdelphij /* 634296465Sdelphij * Some versions of Windows define EADDRINUSE to a dummy value. 635296465Sdelphij */ 636296465Sdelphij (err_num == WSAEADDRINUSE)) 637296465Sdelphij# else 638296465Sdelphij (err_num == EADDRINUSE)) 639296465Sdelphij# endif 640296465Sdelphij { 641296465Sdelphij memcpy((char *)&client, (char *)&server, sizeof(server)); 642296465Sdelphij if (strcmp(h, "*") == 0) 643296465Sdelphij client.sin_addr.s_addr = htonl(0x7F000001); 644296465Sdelphij cs = socket(AF_INET, SOCK_STREAM, SOCKET_PROTOCOL); 645296465Sdelphij if (cs != INVALID_SOCKET) { 646296465Sdelphij int ii; 647296465Sdelphij ii = connect(cs, (struct sockaddr *)&client, sizeof(client)); 648296465Sdelphij closesocket(cs); 649296465Sdelphij if (ii == INVALID_SOCKET) { 650296465Sdelphij bind_mode = BIO_BIND_REUSEADDR; 651296465Sdelphij closesocket(s); 652296465Sdelphij goto again; 653296465Sdelphij } 654296465Sdelphij /* else error */ 655296465Sdelphij } 656296465Sdelphij /* else error */ 657296465Sdelphij } 658296465Sdelphij# endif 659296465Sdelphij SYSerr(SYS_F_BIND, err_num); 660296465Sdelphij ERR_add_error_data(3, "port='", host, "'"); 661296465Sdelphij BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET, BIO_R_UNABLE_TO_BIND_SOCKET); 662296465Sdelphij goto err; 663296465Sdelphij } 664296465Sdelphij if (listen(s, MAX_LISTEN) == -1) { 665296465Sdelphij SYSerr(SYS_F_BIND, get_last_socket_error()); 666296465Sdelphij ERR_add_error_data(3, "port='", host, "'"); 667296465Sdelphij BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET, BIO_R_UNABLE_TO_LISTEN_SOCKET); 668296465Sdelphij goto err; 669296465Sdelphij } 670296465Sdelphij ret = 1; 671296465Sdelphij err: 672296465Sdelphij if (str != NULL) 673296465Sdelphij OPENSSL_free(str); 674296465Sdelphij if ((ret == 0) && (s != INVALID_SOCKET)) { 675296465Sdelphij closesocket(s); 676296465Sdelphij s = INVALID_SOCKET; 677296465Sdelphij } 678296465Sdelphij return (s); 679296465Sdelphij} 68055714Skris 68155714Skrisint BIO_accept(int sock, char **addr) 682296465Sdelphij{ 683296465Sdelphij int ret = INVALID_SOCKET; 684296465Sdelphij static struct sockaddr_in from; 685296465Sdelphij unsigned long l; 686296465Sdelphij unsigned short port; 687296465Sdelphij int len; 688296465Sdelphij char *p; 68955714Skris 690296465Sdelphij memset((char *)&from, 0, sizeof(from)); 691296465Sdelphij len = sizeof(from); 692296465Sdelphij /* 693296465Sdelphij * Note: under VMS with SOCKETSHR the fourth parameter is currently of 694296465Sdelphij * type (int *) whereas under other systems it is (void *) if you don't 695296465Sdelphij * have a cast it will choke the compiler: if you do have a cast then you 696296465Sdelphij * can either go for (int *) or (void *). 697296465Sdelphij */ 698296465Sdelphij ret = accept(sock, (struct sockaddr *)&from, (void *)&len); 699296465Sdelphij if (ret == INVALID_SOCKET) { 700296465Sdelphij if (BIO_sock_should_retry(ret)) 701296465Sdelphij return -2; 702296465Sdelphij SYSerr(SYS_F_ACCEPT, get_last_socket_error()); 703296465Sdelphij BIOerr(BIO_F_BIO_ACCEPT, BIO_R_ACCEPT_ERROR); 704296465Sdelphij goto end; 705296465Sdelphij } 70655714Skris 707296465Sdelphij if (addr == NULL) 708296465Sdelphij goto end; 70955714Skris 710296465Sdelphij l = ntohl(from.sin_addr.s_addr); 711296465Sdelphij port = ntohs(from.sin_port); 712296465Sdelphij if (*addr == NULL) { 713296465Sdelphij if ((p = OPENSSL_malloc(24)) == NULL) { 714296465Sdelphij BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE); 715296465Sdelphij goto end; 716296465Sdelphij } 717296465Sdelphij *addr = p; 718296465Sdelphij } 719296465Sdelphij BIO_snprintf(*addr, 24, "%d.%d.%d.%d:%d", 720296465Sdelphij (unsigned char)(l >> 24L) & 0xff, 721296465Sdelphij (unsigned char)(l >> 16L) & 0xff, 722296465Sdelphij (unsigned char)(l >> 8L) & 0xff, 723296465Sdelphij (unsigned char)(l) & 0xff, port); 724296465Sdelphij end: 725296465Sdelphij return (ret); 726296465Sdelphij} 72755714Skris 72855714Skrisint BIO_set_tcp_ndelay(int s, int on) 729296465Sdelphij{ 730296465Sdelphij int ret = 0; 731296465Sdelphij# if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP)) 732296465Sdelphij int opt; 73355714Skris 734296465Sdelphij# ifdef SOL_TCP 735296465Sdelphij opt = SOL_TCP; 736296465Sdelphij# else 737296465Sdelphij# ifdef IPPROTO_TCP 738296465Sdelphij opt = IPPROTO_TCP; 739296465Sdelphij# endif 740296465Sdelphij# endif 741296465Sdelphij 742296465Sdelphij ret = setsockopt(s, opt, TCP_NODELAY, (char *)&on, sizeof(on)); 743296465Sdelphij# endif 744296465Sdelphij return (ret == 0); 745296465Sdelphij} 74655714Skris#endif 74755714Skris 74855714Skrisint BIO_socket_nbio(int s, int mode) 749296465Sdelphij{ 750296465Sdelphij int ret = -1; 751296465Sdelphij int l; 75255714Skris 753296465Sdelphij l = mode; 75455714Skris#ifdef FIONBIO 755296465Sdelphij ret = BIO_socket_ioctl(s, FIONBIO, &l); 75655714Skris#endif 757296465Sdelphij return (ret == 0); 758296465Sdelphij} 759