apps/s_server.c

   1 /* apps/s_server.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 /* With IPv6, it looks like Digital has mixed up the proper order of
  60    recursive header file inclusion, resulting in the compiler complaining
  61    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
  62    is needed to have fileno() declared correctly...  So let's define u_int */
  63 #if defined(__DECC) && !defined(__U_INT)
  64 #define __U_INT
  65 typedef unsigned int u_int;
  66 #endif
  67
  68 #include <stdio.h>
  69 #include <stdlib.h>
  70 #include <string.h>
  71 #include <sys/types.h>
  72 #include <sys/stat.h>
  73 #ifdef NO_STDIO
  74 #define APPS_WIN16
  75 #endif
  76 #include <openssl/lhash.h>
  77 #include <openssl/bn.h>
  78 #define USE_SOCKETS
  79 #include "apps.h"
  80 #include <openssl/err.h>
  81 #include <openssl/pem.h>
  82 #include <openssl/x509.h>
  83 #include <openssl/ssl.h>
  84 #include "s_apps.h"
  85
  86 #if (defined(VMS) && __VMS_VER < 70000000)
  87 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
  88 #undef FIONBIO
  89 #endif
  90
  91 #if defined(NO_RSA) && !defined(NO_SSL2)
  92 #define NO_SSL2
  93 #endif
  94
  95 #ifndef NO_RSA
  96 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int export,int keylength);
  97 #endif
  98 static int sv_body(char *hostname, int s, unsigned char *context);
  99 static int www_body(char *hostname, int s, unsigned char *context);
 100 static void close_accept_socket(void );
 101 static void sv_usage(void);
 102 static int init_ssl_connection(SSL *s);
 103 static void print_stats(BIO *bp,SSL_CTX *ctx);
 104 #ifndef NO_DH
 105 static DH *load_dh_param(void );
 106 static DH *get_dh512(void);
 107 #endif
 108 /* static void s_server_init(void);*/
 109
 110 #ifndef S_ISDIR
 111 #if defined(VMS) && !defined(__DECC)
 112 #define S_ISDIR(a)      (((a) & S_IFMT) == S_IFDIR)
 113 #else
 114 #define S_ISDIR(a)      (((a) & _S_IFMT) == _S_IFDIR)
 115 #endif
 116 #endif
 117
 118 #ifndef NO_DH
 119 static unsigned char dh512_p[]={
 120         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 121         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 122         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 123         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 124         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 125         0x47,0x74,0xE8,0x33,
 126         };
 127 static unsigned char dh512_g[]={
 128         0x02,
 129         };
 130
 131 static DH *get_dh512(void)
 132         {
 133         DH *dh=NULL;
 134
 135         if ((dh=DH_new()) == NULL) return(NULL);
 136         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 137         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 138         if ((dh->p == NULL) || (dh->g == NULL))
 139                 return(NULL);
 140         return(dh);
 141         }
 142 #endif
 143
 144 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 145
 146 #undef BUFSIZZ
 147 #define BUFSIZZ 16*1024
 148 static int bufsize=32;
 149 static int accept_socket= -1;
 150
 151 #define TEST_CERT       "server.pem"
 152 #undef PROG
 153 #define PROG            s_server_main
 154
 155 #define DH_PARAM        "server.pem"
 156
 157 extern int verify_depth;
 158
 159 static char *cipher=NULL;
 160 static int s_server_verify=SSL_VERIFY_NONE;
 161 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 162 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 163 #ifdef FIONBIO
 164 static int s_nbio=0;
 165 #endif
 166 static int s_nbio_test=0;
 167 static SSL_CTX *ctx=NULL;
 168 static int www=0;
 169
 170 static BIO *bio_s_out=NULL;
 171 static int s_debug=0;
 172 static int s_quiet=0;
 173
 174 #if 0
 175 static void s_server_init(void)
 176         {
 177         cipher=NULL;
 178         s_server_verify=SSL_VERIFY_NONE;
 179         s_dcert_file=NULL;
 180         s_dkey_file=NULL;
 181         s_cert_file=TEST_CERT;
 182         s_key_file=NULL;
 183 #ifdef FIONBIO
 184         s_nbio=0;
 185 #endif
 186         s_nbio_test=0;
 187         ctx=NULL;
 188         www=0;
 189
 190         bio_s_out=NULL;
 191         s_debug=0;
 192         s_quiet=0;
 193         }
 194 #endif
 195
 196 static void sv_usage(void)
 197         {
 198         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 199         BIO_printf(bio_err,"\n");
 200         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 201         BIO_printf(bio_err," -context arg  - set session ID context\n");
 202         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 203         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 204         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 205         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 206         BIO_printf(bio_err," -key arg      - RSA file to use, PEM format assumed, in cert file if\n");
 207         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 208         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 209         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 210 #ifdef FIONBIO
 211         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 212 #endif
 213         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 214         BIO_printf(bio_err," -debug        - Print more output\n");
 215         BIO_printf(bio_err," -state        - Print the SSL states\n");
 216         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 217         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 218         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 219         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 220         BIO_printf(bio_err," -quiet        - No server output\n");
 221         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 222         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 223         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 224         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 225         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 226         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 227         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 228         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatability\n");
 229         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 230         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 231         }
 232
 233 static int local_argc=0;
 234 static char **local_argv;
 235 static int hack=0;
 236
 237 int MAIN(int argc, char *argv[])
 238         {
 239         short port=PORT;
 240         char *CApath=NULL,*CAfile=NULL;
 241         char *context = NULL;
 242         int badop=0,bugs=0;
 243         int ret=1;
 244         int off=0;
 245         int no_tmp_rsa=0,nocert=0;
 246         int state=0;
 247         SSL_METHOD *meth=NULL;
 248 #ifndef NO_DH
 249         DH *dh=NULL;
 250 #endif
 251
 252 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 253         meth=SSLv23_server_method();
 254 #elif !defined(NO_SSL3)
 255         meth=SSLv3_server_method();
 256 #elif !defined(NO_SSL2)
 257         meth=SSLv2_server_method();
 258 #endif
 259
 260         local_argc=argc;
 261         local_argv=argv;
 262
 263         apps_startup();
 264         s_quiet=0;
 265         s_debug=0;
 266
 267         if (bio_err == NULL)
 268                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 269
 270         verify_depth=0;
 271 #ifdef FIONBIO
 272         s_nbio=0;
 273 #endif
 274         s_nbio_test=0;
 275
 276         argc--;
 277         argv++;
 278
 279         while (argc >= 1)
 280                 {
 281                 if      ((strcmp(*argv,"-port") == 0) ||
 282                          (strcmp(*argv,"-accept") == 0))
 283                         {
 284                         if (--argc < 1) goto bad;
 285                         if (!extract_port(*(++argv),&port))
 286                                 goto bad;
 287                         }
 288                 else if (strcmp(*argv,"-verify") == 0)
 289                         {
 290                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 291                         if (--argc < 1) goto bad;
 292                         verify_depth=atoi(*(++argv));
 293                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 294                         }
 295                 else if (strcmp(*argv,"-Verify") == 0)
 296                         {
 297                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 298                                 SSL_VERIFY_CLIENT_ONCE;
 299                         if (--argc < 1) goto bad;
 300                         verify_depth=atoi(*(++argv));
 301                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 302                         }
 303                 else if (strcmp(*argv,"-context") == 0)
 304                         {
 305                         if (--argc < 1) goto bad;
 306                         context= *(++argv);
 307                         }
 308                 else if (strcmp(*argv,"-cert") == 0)
 309                         {
 310                         if (--argc < 1) goto bad;
 311                         s_cert_file= *(++argv);
 312                         }
 313                 else if (strcmp(*argv,"-key") == 0)
 314                         {
 315                         if (--argc < 1) goto bad;
 316                         s_key_file= *(++argv);
 317                         }
 318                 else if (strcmp(*argv,"-dcert") == 0)
 319                         {
 320                         if (--argc < 1) goto bad;
 321                         s_dcert_file= *(++argv);
 322                         }
 323                 else if (strcmp(*argv,"-dkey") == 0)
 324                         {
 325                         if (--argc < 1) goto bad;
 326                         s_dkey_file= *(++argv);
 327                         }
 328                 else if (strcmp(*argv,"-nocert") == 0)
 329                         {
 330                         nocert=1;
 331                         }
 332                 else if (strcmp(*argv,"-CApath") == 0)
 333                         {
 334                         if (--argc < 1) goto bad;
 335                         CApath= *(++argv);
 336                         }
 337                 else if (strcmp(*argv,"-cipher") == 0)
 338                         {
 339                         if (--argc < 1) goto bad;
 340                         cipher= *(++argv);
 341                         }
 342                 else if (strcmp(*argv,"-CAfile") == 0)
 343                         {
 344                         if (--argc < 1) goto bad;
 345                         CAfile= *(++argv);
 346                         }
 347 #ifdef FIONBIO
 348                 else if (strcmp(*argv,"-nbio") == 0)
 349                         { s_nbio=1; }
 350 #endif
 351                 else if (strcmp(*argv,"-nbio_test") == 0)
 352                         {
 353 #ifdef FIONBIO
 354                         s_nbio=1;
 355 #endif
 356                         s_nbio_test=1;
 357                         }
 358                 else if (strcmp(*argv,"-debug") == 0)
 359                         { s_debug=1; }
 360                 else if (strcmp(*argv,"-hack") == 0)
 361                         { hack=1; }
 362                 else if (strcmp(*argv,"-state") == 0)
 363                         { state=1; }
 364                 else if (strcmp(*argv,"-quiet") == 0)
 365                         { s_quiet=1; }
 366                 else if (strcmp(*argv,"-bugs") == 0)
 367                         { bugs=1; }
 368                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 369                         { no_tmp_rsa=1; }
 370                 else if (strcmp(*argv,"-www") == 0)
 371                         { www=1; }
 372                 else if (strcmp(*argv,"-WWW") == 0)
 373                         { www=2; }
 374                 else if (strcmp(*argv,"-no_ssl2") == 0)
 375                         { off|=SSL_OP_NO_SSLv2; }
 376                 else if (strcmp(*argv,"-no_ssl3") == 0)
 377                         { off|=SSL_OP_NO_SSLv3; }
 378                 else if (strcmp(*argv,"-no_tls1") == 0)
 379                         { off|=SSL_OP_NO_TLSv1; }
 380 #ifndef NO_SSL2
 381                 else if (strcmp(*argv,"-ssl2") == 0)
 382                         { meth=SSLv2_server_method(); }
 383 #endif
 384 #ifndef NO_SSL3
 385                 else if (strcmp(*argv,"-ssl3") == 0)
 386                         { meth=SSLv3_server_method(); }
 387 #endif
 388 #ifndef NO_TLS1
 389                 else if (strcmp(*argv,"-tls1") == 0)
 390                         { meth=TLSv1_server_method(); }
 391 #endif
 392                 else
 393                         {
 394                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 395                         badop=1;
 396                         break;
 397                         }
 398                 argc--;
 399                 argv++;
 400                 }
 401         if (badop)
 402                 {
 403 bad:
 404                 sv_usage();
 405                 goto end;
 406                 }
 407
 408         if (bio_s_out == NULL)
 409                 {
 410                 if (s_quiet && !s_debug)
 411                         {
 412                         bio_s_out=BIO_new(BIO_s_null());
 413                         }
 414                 else
 415                         {
 416                         if (bio_s_out == NULL)
 417                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 418                         }
 419                 }
 420
 421 #if !defined(NO_RSA) || !defined(NO_DSA)
 422         if (nocert)
 423 #endif
 424                 {
 425                 s_cert_file=NULL;
 426                 s_key_file=NULL;
 427                 s_dcert_file=NULL;
 428                 s_dkey_file=NULL;
 429                 }
 430
 431         SSL_load_error_strings();
 432         SSLeay_add_ssl_algorithms();
 433
 434         ctx=SSL_CTX_new(meth);
 435         if (ctx == NULL)
 436                 {
 437                 ERR_print_errors(bio_err);
 438                 goto end;
 439                 }
 440
 441         SSL_CTX_set_quiet_shutdown(ctx,1);
 442         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
 443         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
 444         SSL_CTX_set_options(ctx,off);
 445         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
 446
 447         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 448
 449         SSL_CTX_sess_set_cache_size(ctx,128);
 450
 451 #if 0
 452         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
 453 #endif
 454
 455 #if 0
 456         if (s_cert_file == NULL)
 457                 {
 458                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
 459                 goto end;
 460                 }
 461 #endif
 462
 463         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 464                 (!SSL_CTX_set_default_verify_paths(ctx)))
 465                 {
 466                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
 467                 ERR_print_errors(bio_err);
 468                 /* goto end; */
 469                 }
 470
 471 #ifndef NO_DH
 472         /* EAY EAY EAY evil hack */
 473         dh=load_dh_param();
 474         if (dh != NULL)
 475                 {
 476                 BIO_printf(bio_s_out,"Setting temp DH parameters\n");
 477                 }
 478         else
 479                 {
 480                 BIO_printf(bio_s_out,"Using default temp DH parameters\n");
 481                 dh=get_dh512();
 482                 }
 483         BIO_flush(bio_s_out);
 484
 485         SSL_CTX_set_tmp_dh(ctx,dh);
 486         DH_free(dh);
 487 #endif
 488
 489         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
 490                 goto end;
 491         if (s_dcert_file != NULL)
 492                 {
 493                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
 494                         goto end;
 495                 }
 496
 497 #ifndef NO_RSA
 498 #if 1
 499         SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
 500 #else
 501         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
 502                 {
 503                 RSA *rsa;
 504
 505                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
 506                 BIO_flush(bio_s_out);
 507
 508                 rsa=RSA_generate_key(512,RSA_F4,NULL);
 509
 510                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
 511                         {
 512                         ERR_print_errors(bio_err);
 513                         goto end;
 514                         }
 515                 RSA_free(rsa);
 516                 BIO_printf(bio_s_out,"\n");
 517                 }
 518 #endif
 519 #endif
 520
 521         if (cipher != NULL)
 522                 SSL_CTX_set_cipher_list(ctx,cipher);
 523         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
 524
 525         SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
 526
 527         BIO_printf(bio_s_out,"ACCEPT\n");
 528         if (www)
 529                 do_server(port,&accept_socket,www_body, context);
 530         else
 531                 do_server(port,&accept_socket,sv_body, context);
 532         print_stats(bio_s_out,ctx);
 533         ret=0;
 534 end:
 535         if (ctx != NULL) SSL_CTX_free(ctx);
 536         if (bio_s_out != NULL)
 537                 {
 538                 BIO_free(bio_s_out);
 539                 bio_s_out=NULL;
 540                 }
 541         EXIT(ret);
 542         }
 543
 544 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
 545         {
 546         BIO_printf(bio,"%4ld items in the session cache\n",
 547                 SSL_CTX_sess_number(ssl_ctx));
 548         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
 549                 SSL_CTX_sess_connect(ssl_ctx));
 550         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
 551                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
 552         BIO_printf(bio,"%4d client connects that finished\n",
 553                 SSL_CTX_sess_connect_good(ssl_ctx));
 554         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
 555                 SSL_CTX_sess_accept(ssl_ctx));
 556         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
 557                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
 558         BIO_printf(bio,"%4d server accepts that finished\n",
 559                 SSL_CTX_sess_accept_good(ssl_ctx));
 560         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
 561         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
 562         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
 563         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
 564         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
 565                 SSL_CTX_sess_cache_full(ssl_ctx),
 566                 SSL_CTX_sess_get_cache_size(ssl_ctx));
 567         }
 568
 569 static int sv_body(char *hostname, int s, unsigned char *context)
 570         {
 571         char *buf=NULL;
 572         fd_set readfds;
 573         int ret=1,width;
 574         int k,i;
 575         unsigned long l;
 576         SSL *con=NULL;
 577         BIO *sbio;
 578
 579         if ((buf=Malloc(bufsize)) == NULL)
 580                 {
 581                 BIO_printf(bio_err,"out of memory\n");
 582                 goto err;
 583                 }
 584 #ifdef FIONBIO
 585         if (s_nbio)
 586                 {
 587                 unsigned long sl=1;
 588
 589                 if (!s_quiet)
 590                         BIO_printf(bio_err,"turning on non blocking io\n");
 591                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
 592                         ERR_print_errors(bio_err);
 593                 }
 594 #endif
 595
 596         if (con == NULL) {
 597                 con=(SSL *)SSL_new(ctx);
 598                 if(context)
 599                       SSL_set_session_id_context(con, context,
 600                                                  strlen((char *)context));
 601         }
 602         SSL_clear(con);
 603
 604         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 605         if (s_nbio_test)
 606                 {
 607                 BIO *test;
 608
 609                 test=BIO_new(BIO_f_nbio_test());
 610                 sbio=BIO_push(test,sbio);
 611                 }
 612         SSL_set_bio(con,sbio,sbio);
 613         SSL_set_accept_state(con);
 614         /* SSL_set_fd(con,s); */
 615
 616         if (s_debug)
 617                 {
 618                 con->debug=1;
 619                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
 620                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
 621                 }
 622
 623         width=s+1;
 624         for (;;)
 625                 {
 626                 FD_ZERO(&readfds);
 627 #ifndef WINDOWS
 628                 FD_SET(fileno(stdin),&readfds);
 629 #endif
 630                 FD_SET(s,&readfds);
 631                 /* Note: under VMS with SOCKETSHR the second parameter is
 632                  * currently of type (int *) whereas under other systems
 633                  * it is (void *) if you don't have a cast it will choke
 634                  * the compiler: if you do have a cast then you can either
 635                  * go for (int *) or (void *).
 636                  */
 637                 i=select(width,(void *)&readfds,NULL,NULL,NULL);
 638                 if (i <= 0) continue;
 639                 if (FD_ISSET(fileno(stdin),&readfds))
 640                         {
 641                         i=read(fileno(stdin),buf,bufsize);
 642                         if (!s_quiet)
 643                                 {
 644                                 if ((i <= 0) || (buf[0] == 'Q'))
 645                                         {
 646                                         BIO_printf(bio_s_out,"DONE\n");
 647                                         SHUTDOWN(s);
 648                                         close_accept_socket();
 649                                         ret= -11;
 650                                         goto err;
 651                                         }
 652                                 if ((i <= 0) || (buf[0] == 'q'))
 653                                         {
 654                                         BIO_printf(bio_s_out,"DONE\n");
 655                                         SHUTDOWN(s);
 656         /*                              close_accept_socket();
 657                                         ret= -11;*/
 658                                         goto err;
 659                                         }
 660                                 if ((buf[0] == 'r') &&
 661                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 662                                         {
 663                                         SSL_renegotiate(con);
 664                                         i=SSL_do_handshake(con);
 665                                         printf("SSL_do_handshake -> %d\n",i);
 666                                         i=0; /*13; */
 667                                         continue;
 668                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
 669                                         }
 670                                 if ((buf[0] == 'R') &&
 671                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 672                                         {
 673                                         SSL_set_verify(con,
 674                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
 675                                         SSL_renegotiate(con);
 676                                         i=SSL_do_handshake(con);
 677                                         printf("SSL_do_handshake -> %d\n",i);
 678                                         i=0; /* 13; */
 679                                         continue;
 680                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
 681                                         }
 682                                 if (buf[0] == 'P')
 683                                         {
 684                                         static char *str="Lets print some clear text\n";
 685                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
 686                                         }
 687                                 if (buf[0] == 'S')
 688                                         {
 689                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
 690                                         }
 691                                 }
 692                         l=k=0;
 693                         for (;;)
 694                                 {
 695                                 /* should do a select for the write */
 696 #ifdef RENEG
 697 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
 698 #endif
 699                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
 700                                 switch (SSL_get_error(con,k))
 701                                         {
 702                                 case SSL_ERROR_NONE:
 703                                         break;
 704                                 case SSL_ERROR_WANT_WRITE:
 705                                 case SSL_ERROR_WANT_READ:
 706                                 case SSL_ERROR_WANT_X509_LOOKUP:
 707                                         BIO_printf(bio_s_out,"Write BLOCK\n");
 708                                         break;
 709                                 case SSL_ERROR_SYSCALL:
 710                                 case SSL_ERROR_SSL:
 711                                         BIO_printf(bio_s_out,"ERROR\n");
 712                                         ERR_print_errors(bio_err);
 713                                         ret=1;
 714                                         goto err;
 715                                         /* break; */
 716                                 case SSL_ERROR_ZERO_RETURN:
 717                                         BIO_printf(bio_s_out,"DONE\n");
 718                                         ret=1;
 719                                         goto err;
 720                                         }
 721                                 l+=k;
 722                                 i-=k;
 723                                 if (i <= 0) break;
 724                                 }
 725                         }
 726                 if (FD_ISSET(s,&readfds))
 727                         {
 728                         if (!SSL_is_init_finished(con))
 729                                 {
 730                                 i=init_ssl_connection(con);
 731
 732                                 if (i < 0)
 733                                         {
 734                                         ret=0;
 735                                         goto err;
 736                                         }
 737                                 else if (i == 0)
 738                                         {
 739                                         ret=1;
 740                                         goto err;
 741                                         }
 742                                 }
 743                         else
 744                                 {
 745 again:
 746                                 i=SSL_read(con,(char *)buf,bufsize);
 747                                 switch (SSL_get_error(con,i))
 748                                         {
 749                                 case SSL_ERROR_NONE:
 750                                         write(fileno(stdout),buf,
 751                                                 (unsigned int)i);
 752                                         if (SSL_pending(con)) goto again;
 753                                         break;
 754                                 case SSL_ERROR_WANT_WRITE:
 755                                 case SSL_ERROR_WANT_READ:
 756                                 case SSL_ERROR_WANT_X509_LOOKUP:
 757                                         BIO_printf(bio_s_out,"Read BLOCK\n");
 758                                         break;
 759                                 case SSL_ERROR_SYSCALL:
 760                                 case SSL_ERROR_SSL:
 761                                         BIO_printf(bio_s_out,"ERROR\n");
 762                                         ERR_print_errors(bio_err);
 763                                         ret=1;
 764                                         goto err;
 765                                 case SSL_ERROR_ZERO_RETURN:
 766                                         BIO_printf(bio_s_out,"DONE\n");
 767                                         ret=1;
 768                                         goto err;
 769                                         }
 770                                 }
 771                         }
 772                 }
 773 err:
 774         BIO_printf(bio_s_out,"shutting down SSL\n");
 775 #if 1
 776         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
 777 #else
 778         SSL_shutdown(con);
 779 #endif
 780         if (con != NULL) SSL_free(con);
 781         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
 782         if (buf != NULL)
 783                 {
 784                 memset(buf,0,bufsize);
 785                 Free(buf);
 786                 }
 787         if (ret >= 0)
 788                 BIO_printf(bio_s_out,"ACCEPT\n");
 789         return(ret);
 790         }
 791
 792 static void close_accept_socket(void)
 793         {
 794         BIO_printf(bio_err,"shutdown accept socket\n");
 795         if (accept_socket >= 0)
 796                 {
 797                 SHUTDOWN2(accept_socket);
 798                 }
 799         }
 800
 801 static int init_ssl_connection(SSL *con)
 802         {
 803         int i;
 804         const char *str;
 805         X509 *peer;
 806         long verify_error;
 807         MS_STATIC char buf[BUFSIZ];
 808
 809         if ((i=SSL_accept(con)) <= 0)
 810                 {
 811                 if (BIO_sock_should_retry(i))
 812                         {
 813                         BIO_printf(bio_s_out,"DELAY\n");
 814                         return(1);
 815                         }
 816
 817                 BIO_printf(bio_err,"ERROR\n");
 818                 verify_error=SSL_get_verify_result(con);
 819                 if (verify_error != X509_V_OK)
 820                         {
 821                         BIO_printf(bio_err,"verify error:%s\n",
 822                                 X509_verify_cert_error_string(verify_error));
 823                         }
 824                 else
 825                         ERR_print_errors(bio_err);
 826                 return(0);
 827                 }
 828
 829         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
 830
 831         peer=SSL_get_peer_certificate(con);
 832         if (peer != NULL)
 833                 {
 834                 BIO_printf(bio_s_out,"Client certificate\n");
 835                 PEM_write_bio_X509(bio_s_out,peer);
 836                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
 837                 BIO_printf(bio_s_out,"subject=%s\n",buf);
 838                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
 839                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
 840                 X509_free(peer);
 841                 }
 842
 843         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
 844                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
 845         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
 846         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
 847         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
 848         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
 849                 TLS1_FLAGS_TLS_PADDING_BUG)
 850                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
 851
 852         return(1);
 853         }
 854
 855 #ifndef NO_DH
 856 static DH *load_dh_param(void)
 857         {
 858         DH *ret=NULL;
 859         BIO *bio;
 860
 861         if ((bio=BIO_new_file(DH_PARAM,"r")) == NULL)
 862                 goto err;
 863         ret=PEM_read_bio_DHparams(bio,NULL,NULL);
 864 err:
 865         if (bio != NULL) BIO_free(bio);
 866         return(ret);
 867         }
 868 #endif
 869
 870 #if 0
 871 static int load_CA(SSL_CTX *ctx, char *file)
 872         {
 873         FILE *in;
 874         X509 *x=NULL;
 875
 876         if ((in=fopen(file,"r")) == NULL)
 877                 return(0);
 878
 879         for (;;)
 880                 {
 881                 if (PEM_read_X509(in,&x,NULL) == NULL)
 882                         break;
 883                 SSL_CTX_add_client_CA(ctx,x);
 884                 }
 885         if (x != NULL) X509_free(x);
 886         fclose(in);
 887         return(1);
 888         }
 889 #endif
 890
 891 static int www_body(char *hostname, int s, unsigned char *context)
 892         {
 893         char *buf=NULL;
 894         int ret=1;
 895         int i,j,k,blank,dot;
 896         struct stat st_buf;
 897         SSL *con;
 898         SSL_CIPHER *c;
 899         BIO *io,*ssl_bio,*sbio;
 900         long total_bytes;
 901
 902         buf=Malloc(bufsize);
 903         if (buf == NULL) return(0);
 904         io=BIO_new(BIO_f_buffer());
 905         ssl_bio=BIO_new(BIO_f_ssl());
 906         if ((io == NULL) || (ssl_bio == NULL)) goto err;
 907
 908 #ifdef FIONBIO
 909         if (s_nbio)
 910                 {
 911                 unsigned long sl=1;
 912
 913                 if (!s_quiet)
 914                         BIO_printf(bio_err,"turning on non blocking io\n");
 915                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
 916                         ERR_print_errors(bio_err);
 917                 }
 918 #endif
 919
 920         /* lets make the output buffer a reasonable size */
 921         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
 922
 923         if ((con=(SSL *)SSL_new(ctx)) == NULL) goto err;
 924         if(context) SSL_set_session_id_context(con, context,
 925                                                strlen((char *)context));
 926
 927         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 928         if (s_nbio_test)
 929                 {
 930                 BIO *test;
 931
 932                 test=BIO_new(BIO_f_nbio_test());
 933                 sbio=BIO_push(test,sbio);
 934                 }
 935         SSL_set_bio(con,sbio,sbio);
 936         SSL_set_accept_state(con);
 937
 938         /* SSL_set_fd(con,s); */
 939         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
 940         BIO_push(io,ssl_bio);
 941
 942         if (s_debug)
 943                 {
 944                 con->debug=1;
 945                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
 946                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
 947                 }
 948
 949         blank=0;
 950         for (;;)
 951                 {
 952                 if (hack)
 953                         {
 954                         i=SSL_accept(con);
 955
 956                         switch (SSL_get_error(con,i))
 957                                 {
 958                         case SSL_ERROR_NONE:
 959                                 break;
 960                         case SSL_ERROR_WANT_WRITE:
 961                         case SSL_ERROR_WANT_READ:
 962                         case SSL_ERROR_WANT_X509_LOOKUP:
 963                                 continue;
 964                         case SSL_ERROR_SYSCALL:
 965                         case SSL_ERROR_SSL:
 966                         case SSL_ERROR_ZERO_RETURN:
 967                                 ret=1;
 968                                 goto err;
 969                                 /* break; */
 970                                 }
 971
 972                         SSL_renegotiate(con);
 973                         SSL_write(con,NULL,0);
 974                         }
 975
 976                 i=BIO_gets(io,buf,bufsize-1);
 977                 if (i < 0) /* error */
 978                         {
 979                         if (!BIO_should_retry(io))
 980                                 {
 981                                 if (!s_quiet)
 982                                         ERR_print_errors(bio_err);
 983                                 goto err;
 984                                 }
 985                         else
 986                                 {
 987                                 BIO_printf(bio_s_out,"read R BLOCK\n");
 988 #ifndef MSDOS
 989                                 sleep(1);
 990 #endif
 991                                 continue;
 992                                 }
 993                         }
 994                 else if (i == 0) /* end of input */
 995                         {
 996                         ret=1;
 997                         goto end;
 998                         }
 999
1000                 /* else we have data */
1001                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1002                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1003                         {
1004                         char *p;
1005                         X509 *peer;
1006                         STACK_OF(SSL_CIPHER) *sk;
1007                         static char *space="                          ";
1008
1009                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1010                         BIO_puts(io,"<HTML><BODY BGCOLOR=ffffff>\n");
1011                         BIO_puts(io,"<pre>\n");
1012 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1013                         BIO_puts(io,"\n");
1014                         for (i=0; i<local_argc; i++)
1015                                 {
1016                                 BIO_puts(io,local_argv[i]);
1017                                 BIO_write(io," ",1);
1018                                 }
1019                         BIO_puts(io,"\n");
1020
1021                         /* The following is evil and should not really
1022                          * be done */
1023                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1024                         sk=SSL_get_ciphers(con);
1025                         j=sk_SSL_CIPHER_num(sk);
1026                         for (i=0; i<j; i++)
1027                                 {
1028                                 c=sk_SSL_CIPHER_value(sk,i);
1029                                 BIO_printf(io,"%-11s:%-25s",
1030                                         SSL_CIPHER_get_version(c),
1031                                         SSL_CIPHER_get_name(c));
1032                                 if ((((i+1)%2) == 0) && (i+1 != j))
1033                                         BIO_puts(io,"\n");
1034                                 }
1035                         BIO_puts(io,"\n");
1036                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1037                         if (p != NULL)
1038                                 {
1039                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1040                                 j=i=0;
1041                                 while (*p)
1042                                         {
1043                                         if (*p == ':')
1044                                                 {
1045                                                 BIO_write(io,space,26-j);
1046                                                 i++;
1047                                                 j=0;
1048                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1049                                                 }
1050                                         else
1051                                                 {
1052                                                 BIO_write(io,p,1);
1053                                                 j++;
1054                                                 }
1055                                         p++;
1056                                         }
1057                                 BIO_puts(io,"\n");
1058                                 }
1059                         BIO_printf(io,((con->hit)
1060                                 ?"---\nReused, "
1061                                 :"---\nNew, "));
1062                         c=SSL_get_current_cipher(con);
1063                         BIO_printf(io,"%s, Cipher is %s\n",
1064                                 SSL_CIPHER_get_version(c),
1065                                 SSL_CIPHER_get_name(c));
1066                         SSL_SESSION_print(io,SSL_get_session(con));
1067                         BIO_printf(io,"---\n");
1068                         print_stats(io,SSL_get_SSL_CTX(con));
1069                         BIO_printf(io,"---\n");
1070                         peer=SSL_get_peer_certificate(con);
1071                         if (peer != NULL)
1072                                 {
1073                                 BIO_printf(io,"Client certificate\n");
1074                                 X509_print(io,peer);
1075                                 PEM_write_bio_X509(io,peer);
1076                                 }
1077                         else
1078                                 BIO_puts(io,"no client certificate available\n");
1079                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1080                         break;
1081                         }
1082                 else if ((www == 2) && (strncmp("GET ",buf,4) == 0))
1083                         {
1084                         BIO *file;
1085                         char *p,*e;
1086                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1087
1088                         /* skip the '/' */
1089                         p= &(buf[5]);
1090                         dot=0;
1091                         for (e=p; *e != '\0'; e++)
1092                                 {
1093                                 if (e[0] == ' ') break;
1094                                 if (    (e[0] == '.') &&
1095                                         (strncmp(&(e[-1]),"/../",4) == 0))
1096                                         dot=1;
1097                                 }
1098
1099
1100                         if (*e == '\0')
1101                                 {
1102                                 BIO_puts(io,text);
1103                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1104                                 break;
1105                                 }
1106                         *e='\0';
1107
1108                         if (dot)
1109                                 {
1110                                 BIO_puts(io,text);
1111                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1112                                 break;
1113                                 }
1114
1115                         if (*p == '/')
1116                                 {
1117                                 BIO_puts(io,text);
1118                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1119                                 break;
1120                                 }
1121
1122                         /* append if a directory lookup */
1123                         if (e[-1] == '/')
1124                                 strcat(p,"index.html");
1125
1126                         /* if a directory, do the index thang */
1127                         if (stat(p,&st_buf) < 0)
1128                                 {
1129                                 BIO_puts(io,text);
1130                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1131                                 ERR_print_errors(io);
1132                                 break;
1133                                 }
1134                         if (S_ISDIR(st_buf.st_mode))
1135                                 {
1136                                 strcat(p,"/index.html");
1137                                 }
1138
1139                         if ((file=BIO_new_file(p,"r")) == NULL)
1140                                 {
1141                                 BIO_puts(io,text);
1142                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1143                                 ERR_print_errors(io);
1144                                 break;
1145                                 }
1146
1147                         if (!s_quiet)
1148                                 BIO_printf(bio_err,"FILE:%s\n",p);
1149
1150                         i=strlen(p);
1151                         if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1152                                 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1153                                 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1154                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1155                         else
1156                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1157                         /* send the file */
1158                         total_bytes=0;
1159                         for (;;)
1160                                 {
1161                                 i=BIO_read(file,buf,bufsize);
1162                                 if (i <= 0) break;
1163
1164 #ifdef RENEG
1165                                 total_bytes+=i;
1166                                 fprintf(stderr,"%d\n",i);
1167                                 if (total_bytes > 3*1024)
1168                                         {
1169                                         total_bytes=0;
1170                                         fprintf(stderr,"RENEGOTIATE\n");
1171                                         SSL_renegotiate(con);
1172                                         }
1173 #endif
1174
1175                                 for (j=0; j<i; )
1176                                         {
1177 #ifdef RENEG
1178 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1179 #endif
1180                                         k=BIO_write(io,&(buf[j]),i-j);
1181                                         if (k <= 0)
1182                                                 {
1183                                                 if (!BIO_should_retry(io))
1184                                                         goto write_error;
1185                                                 else
1186                                                         {
1187                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1188                                                         }
1189                                                 }
1190                                         else
1191                                                 {
1192                                                 j+=k;
1193                                                 }
1194                                         }
1195                                 }
1196 write_error:
1197                         BIO_free(file);
1198                         break;
1199                         }
1200                 }
1201
1202         for (;;)
1203                 {
1204                 i=(int)BIO_flush(io);
1205                 if (i <= 0)
1206                         {
1207                         if (!BIO_should_retry(io))
1208                                 break;
1209                         }
1210                 else
1211                         break;
1212                 }
1213 end:
1214 #if 1
1215         /* make sure we re-use sessions */
1216         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1217 #else
1218         /* This kills performace */
1219 /*      SSL_shutdown(con); A shutdown gets sent in the
1220  *      BIO_free_all(io) procession */
1221 #endif
1222
1223 err:
1224
1225         if (ret >= 0)
1226                 BIO_printf(bio_s_out,"ACCEPT\n");
1227
1228         if (buf != NULL) Free(buf);
1229         if (io != NULL) BIO_free_all(io);
1230 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1231         return(ret);
1232         }
1233
1234 #ifndef NO_RSA
1235 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int export, int keylength)
1236         {
1237         static RSA *rsa_tmp=NULL;
1238
1239         if (rsa_tmp == NULL)
1240                 {
1241                 if (!s_quiet)
1242                         {
1243                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1244                         BIO_flush(bio_err);
1245                         }
1246                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1247                 if (!s_quiet)
1248                         {
1249                         BIO_printf(bio_err,"\n");
1250                         BIO_flush(bio_err);
1251                         }
1252                 }
1253         return(rsa_tmp);
1254         }
1255 #endif