apps/s_socket.c

   1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   2  * All rights reserved.
   3  *
   4  * This package is an SSL implementation written
   5  * by Eric Young (eay@cryptsoft.com).
   6  * The implementation was written so as to conform with Netscapes SSL.
   7  *
   8  * This library is free for commercial and non-commercial use as long as
   9  * the following conditions are aheared to.  The following conditions
  10  * apply to all code found in this distribution, be it the RC4, RSA,
  11  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  12  * included with this distribution is covered by the same copyright terms
  13  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  14  *
  15  * Copyright remains Eric Young's, and as such any Copyright notices in
  16  * the code are not to be removed.
  17  * If this package is used in a product, Eric Young should be given attribution
  18  * as the author of the parts of the library used.
  19  * This can be in the form of a textual message at program startup or
  20  * in documentation (online or textual) provided with the package.
  21  *
  22  * Redistribution and use in source and binary forms, with or without
  23  * modification, are permitted provided that the following conditions
  24  * are met:
  25  * 1. Redistributions of source code must retain the copyright
  26  *    notice, this list of conditions and the following disclaimer.
  27  * 2. Redistributions in binary form must reproduce the above copyright
  28  *    notice, this list of conditions and the following disclaimer in the
  29  *    documentation and/or other materials provided with the distribution.
  30  * 3. All advertising materials mentioning features or use of this software
  31  *    must display the following acknowledgement:
  32  *    "This product includes cryptographic software written by
  33  *     Eric Young (eay@cryptsoft.com)"
  34  *    The word 'cryptographic' can be left out if the rouines from the library
  35  *    being used are not cryptographic related :-).
  36  * 4. If you include any Windows specific code (or a derivative thereof) from
  37  *    the apps directory (application code) you must include an acknowledgement:
  38  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  50  * SUCH DAMAGE.
  51  *
  52  * The licence and distribution terms for any publically available version or
  53  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  54  * copied and put under another distribution licence
  55  * [including the GNU Public Licence.]
  56  */
  57 /* ====================================================================
  58  * Copyright (c) 199-2015 The OpenSSL Project.  All rights reserved.
  59  *
  60  * Redistribution and use in source and binary forms, with or without
  61  * modification, are permitted provided that the following conditions
  62  * are met:
  63  *
  64  * 1. Redistributions of source code must retain the above copyright
  65  *    notice, this list of conditions and the following disclaimer.
  66  *
  67  * 2. Redistributions in binary form must reproduce the above copyright
  68  *    notice, this list of conditions and the following disclaimer in
  69  *    the documentation and/or other materials provided with the
  70  *    distribution.
  71  *
  72  * 3. All advertising materials mentioning features or use of this
  73  *    software must display the following acknowledgment:
  74  *    "This product includes software developed by the OpenSSL Project
  75  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  76  *
  77  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  78  *    endorse or promote products derived from this software without
  79  *    prior written permission. For written permission, please contact
  80  *    licensing@OpenSSL.org.
  81  *
  82  * 5. Products derived from this software may not be called "OpenSSL"
  83  *    nor may "OpenSSL" appear in their names without prior written
  84  *    permission of the OpenSSL Project.
  85  *
  86  * 6. Redistributions of any form whatsoever must retain the following
  87  *    acknowledgment:
  88  *    "This product includes software developed by the OpenSSL Project
  89  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  90  *
  91  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  92  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  93  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  94  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  95  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  96  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  97  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  98  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  99  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 100  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 101  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 102  * OF THE POSSIBILITY OF SUCH DAMAGE.
 103  * ====================================================================
 104  */
 105
 106 /* socket-related functions used by s_client and s_server */
 107 #include <stdio.h>
 108 #include <stdlib.h>
 109 #include <string.h>
 110 #include <errno.h>
 111 #include <signal.h>
 112
 113 /*
 114  * With IPv6, it looks like Digital has mixed up the proper order of
 115  * recursive header file inclusion, resulting in the compiler complaining
 116  * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
 117  * needed to have fileno() declared correctly...  So let's define u_int
 118  */
 119 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 120 # define __U_INT
 121 typedef unsigned int u_int;
 122 #endif
 123
 124 #define USE_SOCKETS
 125 #include "apps.h"
 126 #undef USE_SOCKETS
 127 #include "s_apps.h"
 128 #include <openssl/ssl.h>
 129
 130 #ifdef FLAT_INC
 131 # include "e_os.h"
 132 #else
 133 # include "../e_os.h"
 134 #endif
 135
 136 #ifndef OPENSSL_NO_SOCK
 137
 138 # if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_BSDSOCK)
 139 #  include "netdb.h"
 140 # endif
 141
 142 # if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK))
 143 static void ssl_sock_cleanup(void);
 144 # endif
 145 static int ssl_sock_init(void);
 146 static int init_client_ip(int *sock, const unsigned char ip[4], int port,
 147                           int type);
 148 static int init_server(int *sock, int port, int type);
 149 static int init_server_long(int *sock, int port, char *ip, int type);
 150 static int do_accept(int acc_sock, int *sock, char **host);
 151 static int host_ip(const char *str, unsigned char ip[4]);
 152 # ifndef NO_SYS_UN_H
 153 static int init_server_unix(int *sock, const char *path);
 154 static int do_accept_unix(int acc_sock, int *sock);
 155 # endif
 156
 157 # if defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
 158 static int wsa_init_done = 0;
 159 # endif
 160
 161 # ifdef OPENSSL_SYS_WINDOWS
 162 static struct WSAData wsa_state;
 163 static int wsa_init_done = 0;
 164
 165 # endif                         /* OPENSSL_SYS_WINDOWS */
 166
 167 # ifdef OPENSSL_SYS_WINDOWS
 168 static void ssl_sock_cleanup(void)
 169 {
 170     if (wsa_init_done) {
 171         wsa_init_done = 0;
 172 #  ifndef OPENSSL_SYS_WINCE
 173         WSACancelBlockingCall();
 174 #  endif
 175         WSACleanup();
 176     }
 177 }
 178 # elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
 179 static void sock_cleanup(void)
 180 {
 181     if (wsa_init_done) {
 182         wsa_init_done = 0;
 183         WSACleanup();
 184     }
 185 }
 186 # endif
 187
 188 static int ssl_sock_init(void)
 189 {
 190 # ifdef WATT32
 191     extern int _watt_do_exit;
 192     _watt_do_exit = 0;
 193     if (sock_init())
 194         return (0);
 195 # elif defined(OPENSSL_SYS_WINDOWS)
 196     if (!wsa_init_done) {
 197         int err;
 198
 199 #  ifdef SIGINT
 200         signal(SIGINT, (void (*)(int))ssl_sock_cleanup);
 201 #  endif
 202         wsa_init_done = 1;
 203         memset(&wsa_state, 0, sizeof(wsa_state));
 204         if (WSAStartup(0x0101, &wsa_state) != 0) {
 205             err = WSAGetLastError();
 206             BIO_printf(bio_err, "unable to start WINSOCK, error code=%d\n",
 207                        err);
 208             return (0);
 209         }
 210     }
 211 # elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
 212     WORD wVerReq;
 213     WSADATA wsaData;
 214     int err;
 215
 216     if (!wsa_init_done) {
 217
 218 #  ifdef SIGINT
 219         signal(SIGINT, (void (*)(int))sock_cleanup);
 220 #  endif
 221
 222         wsa_init_done = 1;
 223         wVerReq = MAKEWORD(2, 0);
 224         err = WSAStartup(wVerReq, &wsaData);
 225         if (err != 0) {
 226             BIO_printf(bio_err, "unable to start WINSOCK2, error code=%d\n",
 227                        err);
 228             return (0);
 229         }
 230     }
 231 # endif
 232     return (1);
 233 }
 234
 235 int init_client(int *sock, const char *host, int port, int type)
 236 {
 237     unsigned char ip[4];
 238
 239     ip[0] = ip[1] = ip[2] = ip[3] = 0;
 240     if (!host_ip(host, &(ip[0])))
 241         return 0;
 242     return init_client_ip(sock, ip, port, type);
 243 }
 244
 245 static int init_client_ip(int *sock, const unsigned char ip[4], int port,
 246                           int type)
 247 {
 248     unsigned long addr;
 249     struct sockaddr_in them;
 250     int s, i;
 251
 252     if (!ssl_sock_init())
 253         return (0);
 254
 255     memset(&them, 0, sizeof(them));
 256     them.sin_family = AF_INET;
 257     them.sin_port = htons((unsigned short)port);
 258     addr = (unsigned long)
 259         ((unsigned long)ip[0] << 24L) |
 260         ((unsigned long)ip[1] << 16L) |
 261         ((unsigned long)ip[2] << 8L) | ((unsigned long)ip[3]);
 262     them.sin_addr.s_addr = htonl(addr);
 263
 264     if (type == SOCK_STREAM)
 265         s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
 266     else                        /* ( type == SOCK_DGRAM) */
 267         s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
 268
 269     if (s == (int)INVALID_SOCKET) {
 270         perror("socket");
 271         return (0);
 272     }
 273 # if defined(SO_KEEPALIVE)
 274     if (type == SOCK_STREAM) {
 275         i = 0;
 276         i = setsockopt(s, SOL_SOCKET, SO_KEEPALIVE, (char *)&i, sizeof(i));
 277         if (i < 0) {
 278             closesocket(s);
 279             perror("keepalive");
 280             return (0);
 281         }
 282     }
 283 # endif
 284
 285     if (connect(s, (struct sockaddr *)&them, sizeof(them)) == -1) {
 286         closesocket(s);
 287         perror("connect");
 288         return (0);
 289     }
 290     *sock = s;
 291     return (1);
 292 }
 293
 294 # ifndef NO_SYS_UN_H
 295 int init_client_unix(int *sock, const char *server)
 296 {
 297     struct sockaddr_un them;
 298     int s;
 299
 300     if (strlen(server) > (UNIX_PATH_MAX + 1))
 301         return (0);
 302     if (!ssl_sock_init())
 303         return (0);
 304
 305     s = socket(AF_UNIX, SOCK_STREAM, 0);
 306     if (s == (int)INVALID_SOCKET) {
 307         perror("socket");
 308         return (0);
 309     }
 310
 311     memset(&them, 0, sizeof(them));
 312     them.sun_family = AF_UNIX;
 313     strcpy(them.sun_path, server);
 314
 315     if (connect(s, (struct sockaddr *)&them, sizeof(them)) == -1) {
 316         closesocket(s);
 317         perror("connect");
 318         return (0);
 319     }
 320     *sock = s;
 321     return (1);
 322 }
 323 # endif
 324
 325 int do_server(int port, int type, int *ret,
 326               int (*cb) (char *hostname, int s, int stype,
 327                          unsigned char *context), unsigned char *context,
 328               int naccept)
 329 {
 330     int sock;
 331     char *name = NULL;
 332     int accept_socket = 0;
 333     int i;
 334
 335     if (!init_server(&accept_socket, port, type))
 336         return (0);
 337
 338     if (ret != NULL) {
 339         *ret = accept_socket;
 340         /* return(1); */
 341     }
 342     for (;;) {
 343         if (type == SOCK_STREAM) {
 344 # ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
 345             if (do_accept(accept_socket, &sock, NULL) == 0)
 346 # else
 347             if (do_accept(accept_socket, &sock, &name) == 0)
 348 # endif
 349             {
 350                 SHUTDOWN(accept_socket);
 351                 return (0);
 352             }
 353         } else
 354             sock = accept_socket;
 355         i = (*cb) (name, sock, type, context);
 356         OPENSSL_free(name);
 357         if (type == SOCK_STREAM)
 358             SHUTDOWN2(sock);
 359         if (naccept != -1)
 360             naccept--;
 361         if (i < 0 || naccept == 0) {
 362             SHUTDOWN2(accept_socket);
 363             return (i);
 364         }
 365     }
 366 }
 367
 368 # ifndef NO_SYS_UN_H
 369 int do_server_unix(const char *path, int *ret,
 370                    int (*cb) (char *hostname, int s, int stype,
 371                               unsigned char *context), unsigned char *context,
 372                    int naccept)
 373 {
 374     int sock;
 375     int accept_socket = 0;
 376     int i;
 377
 378     if (!init_server_unix(&accept_socket, path))
 379         return (0);
 380
 381     if (ret != NULL)
 382         *ret = accept_socket;
 383     for (;;) {
 384         if (do_accept_unix(accept_socket, &sock) == 0) {
 385             SHUTDOWN(accept_socket);
 386             i = 0;
 387             goto out;
 388         }
 389         i = (*cb) (NULL, sock, 0, context);
 390         SHUTDOWN2(sock);
 391         if (naccept != -1)
 392             naccept--;
 393         if (i < 0 || naccept == 0) {
 394             SHUTDOWN2(accept_socket);
 395             goto out;
 396         }
 397     }
 398  out:
 399     unlink(path);
 400     return (i);
 401 }
 402 # endif
 403
 404 static int init_server_long(int *sock, int port, char *ip, int type)
 405 {
 406     int ret = 0;
 407     struct sockaddr_in server;
 408     int s = -1;
 409
 410     if (!ssl_sock_init())
 411         return (0);
 412
 413     memset(&server, 0, sizeof(server));
 414     server.sin_family = AF_INET;
 415     server.sin_port = htons((unsigned short)port);
 416     if (ip == NULL)
 417         server.sin_addr.s_addr = INADDR_ANY;
 418     else
 419 /* Added for T3E, address-of fails on bit field (beckman@acl.lanl.gov) */
 420 # ifndef BIT_FIELD_LIMITS
 421         memcpy(&server.sin_addr.s_addr, ip, 4);
 422 # else
 423         memcpy(&server.sin_addr, ip, 4);
 424 # endif
 425
 426     if (type == SOCK_STREAM)
 427         s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
 428     else                        /* type == SOCK_DGRAM */
 429         s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
 430
 431     if (s == (int)INVALID_SOCKET)
 432         goto err;
 433 # if defined SOL_SOCKET && defined SO_REUSEADDR
 434     {
 435         int j = 1;
 436         setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (void *)&j, sizeof j);
 437     }
 438 # endif
 439     if (bind(s, (struct sockaddr *)&server, sizeof(server)) == -1) {
 440 # ifndef OPENSSL_SYS_WINDOWS
 441         perror("bind");
 442 # endif
 443         goto err;
 444     }
 445     /* Make it 128 for linux */
 446     if (type == SOCK_STREAM && listen(s, 128) == -1)
 447         goto err;
 448     *sock = s;
 449     ret = 1;
 450  err:
 451     if ((ret == 0) && (s != -1)) {
 452         SHUTDOWN(s);
 453     }
 454     return (ret);
 455 }
 456
 457 static int init_server(int *sock, int port, int type)
 458 {
 459     return (init_server_long(sock, port, NULL, type));
 460 }
 461
 462 # ifndef NO_SYS_UN_H
 463 static int init_server_unix(int *sock, const char *path)
 464 {
 465     int ret = 0;
 466     struct sockaddr_un server;
 467     int s = -1;
 468
 469     if (strlen(path) > (UNIX_PATH_MAX + 1))
 470         return (0);
 471     if (!ssl_sock_init())
 472         return (0);
 473
 474     s = socket(AF_UNIX, SOCK_STREAM, 0);
 475     if (s == (int)INVALID_SOCKET)
 476         goto err;
 477
 478     memset(&server, 0, sizeof(server));
 479     server.sun_family = AF_UNIX;
 480     strcpy(server.sun_path, path);
 481
 482     if (bind(s, (struct sockaddr *)&server, sizeof(server)) == -1) {
 483 #  ifndef OPENSSL_SYS_WINDOWS
 484         perror("bind");
 485 #  endif
 486         goto err;
 487     }
 488     /* Make it 128 for linux */
 489     if (listen(s, 128) == -1) {
 490 #  ifndef OPENSSL_SYS_WINDOWS
 491         perror("listen");
 492 #  endif
 493         unlink(path);
 494         goto err;
 495     }
 496     *sock = s;
 497     ret = 1;
 498  err:
 499     if ((ret == 0) && (s != -1)) {
 500         SHUTDOWN(s);
 501     }
 502     return (ret);
 503 }
 504 # endif
 505
 506 static int do_accept(int acc_sock, int *sock, char **host)
 507 {
 508     int ret;
 509     struct hostent *h1, *h2;
 510     static struct sockaddr_in from;
 511     int len;
 512 /*      struct linger ling; */
 513
 514     if (!ssl_sock_init())
 515         return (0);
 516
 517 # ifndef OPENSSL_SYS_WINDOWS
 518  redoit:
 519 # endif
 520
 521     memset(&from, 0, sizeof(from));
 522     len = sizeof(from);
 523     /*
 524      * Note: under VMS with SOCKETSHR the fourth parameter is currently of
 525      * type (int *) whereas under other systems it is (void *) if you don't
 526      * have a cast it will choke the compiler: if you do have a cast then you
 527      * can either go for (int *) or (void *).
 528      */
 529     ret = accept(acc_sock, (struct sockaddr *)&from, (void *)&len);
 530     if (ret == (int)INVALID_SOCKET) {
 531 # if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK))
 532         int i;
 533         i = WSAGetLastError();
 534         BIO_printf(bio_err, "accept error %d\n", i);
 535 # else
 536         if (errno == EINTR) {
 537             /*
 538              * check_timeout();
 539              */
 540             goto redoit;
 541         }
 542         BIO_printf(bio_err, "accept errno=%d, %s\n", errno, strerror(errno));
 543 # endif
 544         return (0);
 545     }
 546
 547     if (host == NULL)
 548         goto end;
 549 # ifndef BIT_FIELD_LIMITS
 550     /* I should use WSAAsyncGetHostByName() under windows */
 551     h1 = gethostbyaddr((char *)&from.sin_addr.s_addr,
 552                        sizeof(from.sin_addr.s_addr), AF_INET);
 553 # else
 554     h1 = gethostbyaddr((char *)&from.sin_addr,
 555                        sizeof(struct in_addr), AF_INET);
 556 # endif
 557     if (h1 == NULL) {
 558         BIO_printf(bio_err, "bad gethostbyaddr\n");
 559         *host = NULL;
 560         /* return(0); */
 561     } else {
 562         *host = app_malloc(strlen(h1->h_name) + 1, "copy hostname");
 563         OPENSSL_strlcpy(*host, h1->h_name, strlen(h1->h_name) + 1);
 564
 565         h2 = gethostbyname(*host);
 566         if (h2 == NULL) {
 567             BIO_printf(bio_err, "gethostbyname failure\n");
 568             closesocket(ret);
 569             return (0);
 570         }
 571         if (h2->h_addrtype != AF_INET) {
 572             BIO_printf(bio_err, "gethostbyname addr is not AF_INET\n");
 573             closesocket(ret);
 574             return (0);
 575         }
 576     }
 577  end:
 578     *sock = ret;
 579     return (1);
 580 }
 581
 582 # ifndef NO_SYS_UN_H
 583 static int do_accept_unix(int acc_sock, int *sock)
 584 {
 585     int ret;
 586
 587     if (!ssl_sock_init())
 588         return (0);
 589
 590  redoit:
 591     ret = accept(acc_sock, NULL, NULL);
 592     if (ret == (int)INVALID_SOCKET) {
 593         if (errno == EINTR) {
 594             /*
 595              * check_timeout();
 596              */
 597             goto redoit;
 598         }
 599         BIO_printf(bio_err, "accept errno=%d, %s\n", errno, strerror(errno));
 600         return (0);
 601     }
 602
 603     *sock = ret;
 604     return (1);
 605 }
 606 # endif
 607
 608 int extract_host_port(char *str, char **host_ptr, unsigned char *ip,
 609                       unsigned short *port_ptr)
 610 {
 611     char *h, *p;
 612
 613     h = str;
 614     p = strchr(str, ':');
 615     if (p == NULL) {
 616         BIO_printf(bio_err, "no port defined\n");
 617         return (0);
 618     }
 619     *(p++) = '\0';
 620
 621     if ((ip != NULL) && !host_ip(str, ip))
 622         goto err;
 623     if (host_ptr != NULL)
 624         *host_ptr = h;
 625
 626     if (!extract_port(p, port_ptr))
 627         goto err;
 628     return (1);
 629  err:
 630     return (0);
 631 }
 632
 633 static int host_ip(const char *str, unsigned char ip[4])
 634 {
 635     unsigned int in[4];
 636     int i;
 637
 638     if (sscanf(str, "%u.%u.%u.%u", &(in[0]), &(in[1]), &(in[2]), &(in[3])) ==
 639         4) {
 640         for (i = 0; i < 4; i++)
 641             if (in[i] > 255) {
 642                 BIO_printf(bio_err, "invalid IP address\n");
 643                 goto err;
 644             }
 645         ip[0] = in[0];
 646         ip[1] = in[1];
 647         ip[2] = in[2];
 648         ip[3] = in[3];
 649     } else {                    /* do a gethostbyname */
 650         struct hostent *he;
 651
 652         if (!ssl_sock_init())
 653             return (0);
 654
 655         he = gethostbyname(str);
 656         if (he == NULL) {
 657             BIO_printf(bio_err, "gethostbyname failure\n");
 658             goto err;
 659         }
 660         if (he->h_addrtype != AF_INET) {
 661             BIO_printf(bio_err, "gethostbyname addr is not AF_INET\n");
 662             return (0);
 663         }
 664         ip[0] = he->h_addr_list[0][0];
 665         ip[1] = he->h_addr_list[0][1];
 666         ip[2] = he->h_addr_list[0][2];
 667         ip[3] = he->h_addr_list[0][3];
 668     }
 669     return (1);
 670  err:
 671     return (0);
 672 }
 673
 674 int extract_port(const char *str, unsigned short *port_ptr)
 675 {
 676     int i;
 677     struct servent *s;
 678
 679     i = atoi(str);
 680     if (i != 0)
 681         *port_ptr = (unsigned short)i;
 682     else {
 683         s = getservbyname(str, "tcp");
 684         if (s == NULL) {
 685             BIO_printf(bio_err, "getservbyname failure for %s\n", str);
 686             return (0);
 687         }
 688         *port_ptr = ntohs((unsigned short)s->s_port);
 689     }
 690     return (1);
 691 }
 692
 693 #endif