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 #include <assert.h>
  60 #include <stdio.h>
  61 #include <stdlib.h>
  62 #include <string.h>
  63 #include <sys/types.h>
  64 #include <sys/stat.h>
  65 #ifdef NO_STDIO
  66 #define APPS_WIN16
  67 #endif
  68
  69 /* With IPv6, it looks like Digital has mixed up the proper order of
  70    recursive header file inclusion, resulting in the compiler complaining
  71    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
  72    is needed to have fileno() declared correctly...  So let's define u_int */
  73 #if defined(VMS) && defined(__DECC) && !defined(__U_INT)
  74 #define __U_INT
  75 typedef unsigned int u_int;
  76 #endif
  77
  78 #include <openssl/lhash.h>
  79 #include <openssl/bn.h>
  80 #define USE_SOCKETS
  81 #include "apps.h"
  82 #include <openssl/err.h>
  83 #include <openssl/pem.h>
  84 #include <openssl/x509.h>
  85 #include <openssl/ssl.h>
  86 #include <openssl/engine.h>
  87 #include "s_apps.h"
  88
  89 #ifdef WINDOWS
  90 #include <conio.h>
  91 #endif
  92
  93 #if (defined(VMS) && __VMS_VER < 70000000)
  94 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
  95 #undef FIONBIO
  96 #endif
  97
  98 #ifndef NO_RSA
  99 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 100 #endif
 101 static int sv_body(char *hostname, int s, unsigned char *context);
 102 static int www_body(char *hostname, int s, unsigned char *context);
 103 static void close_accept_socket(void );
 104 static void sv_usage(void);
 105 static int init_ssl_connection(SSL *s);
 106 static void print_stats(BIO *bp,SSL_CTX *ctx);
 107 #ifndef NO_DH
 108 static DH *load_dh_param(char *dhfile);
 109 static DH *get_dh512(void);
 110 #endif
 111 #ifdef MONOLITH
 112 static void s_server_init(void);
 113 #endif
 114
 115 #ifndef S_ISDIR
 116 # if defined(_S_IFMT) && defined(_S_IFDIR)
 117 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
 118 # else
 119 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
 120 # endif
 121 #endif
 122
 123 #ifndef NO_DH
 124 static unsigned char dh512_p[]={
 125         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 126         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 127         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 128         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 129         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 130         0x47,0x74,0xE8,0x33,
 131         };
 132 static unsigned char dh512_g[]={
 133         0x02,
 134         };
 135
 136 static DH *get_dh512(void)
 137         {
 138         DH *dh=NULL;
 139
 140         if ((dh=DH_new()) == NULL) return(NULL);
 141         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 142         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 143         if ((dh->p == NULL) || (dh->g == NULL))
 144                 return(NULL);
 145         return(dh);
 146         }
 147 #endif
 148
 149 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 150
 151 #undef BUFSIZZ
 152 #define BUFSIZZ 16*1024
 153 static int bufsize=BUFSIZZ;
 154 static int accept_socket= -1;
 155
 156 #define TEST_CERT       "server.pem"
 157 #undef PROG
 158 #define PROG            s_server_main
 159
 160 extern int verify_depth;
 161
 162 static char *cipher=NULL;
 163 static int s_server_verify=SSL_VERIFY_NONE;
 164 static int s_server_session_id_context = 1; /* anything will do */
 165 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 166 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 167 #ifdef FIONBIO
 168 static int s_nbio=0;
 169 #endif
 170 static int s_nbio_test=0;
 171 int s_crlf=0;
 172 static SSL_CTX *ctx=NULL;
 173 static int www=0;
 174
 175 static BIO *bio_s_out=NULL;
 176 static int s_debug=0;
 177 static int s_quiet=0;
 178
 179 static int hack=0;
 180 static char *engine_id=NULL;
 181
 182 #ifdef MONOLITH
 183 static void s_server_init(void)
 184         {
 185         accept_socket=-1;
 186         cipher=NULL;
 187         s_server_verify=SSL_VERIFY_NONE;
 188         s_dcert_file=NULL;
 189         s_dkey_file=NULL;
 190         s_cert_file=TEST_CERT;
 191         s_key_file=NULL;
 192 #ifdef FIONBIO
 193         s_nbio=0;
 194 #endif
 195         s_nbio_test=0;
 196         ctx=NULL;
 197         www=0;
 198
 199         bio_s_out=NULL;
 200         s_debug=0;
 201         s_quiet=0;
 202         hack=0;
 203         engine_id=NULL;
 204         }
 205 #endif
 206
 207 static void sv_usage(void)
 208         {
 209         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 210         BIO_printf(bio_err,"\n");
 211         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 212         BIO_printf(bio_err," -context arg  - set session ID context\n");
 213         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 214         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 215         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 216         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 217         BIO_printf(bio_err," -key arg      - Private Key file to use, PEM format assumed, in cert file if\n");
 218         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 219         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 220         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 221         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 222         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 223 #ifdef FIONBIO
 224         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 225 #endif
 226         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 227         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 228         BIO_printf(bio_err," -debug        - Print more output\n");
 229         BIO_printf(bio_err," -state        - Print the SSL states\n");
 230         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 231         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 232         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 233         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 234         BIO_printf(bio_err," -quiet        - No server output\n");
 235         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 236         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 237         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 238         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 239         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 240         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 241         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 242 #ifndef NO_DH
 243         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 244 #endif
 245         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 246         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 247         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 248         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 249         }
 250
 251 static int local_argc=0;
 252 static char **local_argv;
 253
 254 #ifdef CHARSET_EBCDIC
 255 static int ebcdic_new(BIO *bi);
 256 static int ebcdic_free(BIO *a);
 257 static int ebcdic_read(BIO *b, char *out, int outl);
 258 static int ebcdic_write(BIO *b, char *in, int inl);
 259 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr);
 260 static int ebcdic_gets(BIO *bp, char *buf, int size);
 261 static int ebcdic_puts(BIO *bp, char *str);
 262
 263 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 264 static BIO_METHOD methods_ebcdic=
 265         {
 266         BIO_TYPE_EBCDIC_FILTER,
 267         "EBCDIC/ASCII filter",
 268         ebcdic_write,
 269         ebcdic_read,
 270         ebcdic_puts,
 271         ebcdic_gets,
 272         ebcdic_ctrl,
 273         ebcdic_new,
 274         ebcdic_free,
 275         };
 276
 277 typedef struct
 278 {
 279         size_t  alloced;
 280         char    buff[1];
 281 } EBCDIC_OUTBUFF;
 282
 283 BIO_METHOD *BIO_f_ebcdic_filter()
 284 {
 285         return(&methods_ebcdic);
 286 }
 287
 288 static int ebcdic_new(BIO *bi)
 289 {
 290         EBCDIC_OUTBUFF *wbuf;
 291
 292         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 293         wbuf->alloced = 1024;
 294         wbuf->buff[0] = '\0';
 295
 296         bi->ptr=(char *)wbuf;
 297         bi->init=1;
 298         bi->flags=0;
 299         return(1);
 300 }
 301
 302 static int ebcdic_free(BIO *a)
 303 {
 304         if (a == NULL) return(0);
 305         if (a->ptr != NULL)
 306                 OPENSSL_free(a->ptr);
 307         a->ptr=NULL;
 308         a->init=0;
 309         a->flags=0;
 310         return(1);
 311 }
 312
 313 static int ebcdic_read(BIO *b, char *out, int outl)
 314 {
 315         int ret=0;
 316
 317         if (out == NULL || outl == 0) return(0);
 318         if (b->next_bio == NULL) return(0);
 319
 320         ret=BIO_read(b->next_bio,out,outl);
 321         if (ret > 0)
 322                 ascii2ebcdic(out,out,ret);
 323         return(ret);
 324 }
 325
 326 static int ebcdic_write(BIO *b, char *in, int inl)
 327 {
 328         EBCDIC_OUTBUFF *wbuf;
 329         int ret=0;
 330         int num;
 331         unsigned char n;
 332
 333         if ((in == NULL) || (inl <= 0)) return(0);
 334         if (b->next_bio == NULL) return(0);
 335
 336         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 337
 338         if (inl > (num = wbuf->alloced))
 339         {
 340                 num = num + num;  /* double the size */
 341                 if (num < inl)
 342                         num = inl;
 343                 OPENSSL_free(wbuf);
 344                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 345
 346                 wbuf->alloced = num;
 347                 wbuf->buff[0] = '\0';
 348
 349                 b->ptr=(char *)wbuf;
 350         }
 351
 352         ebcdic2ascii(wbuf->buff, in, inl);
 353
 354         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 355
 356         return(ret);
 357 }
 358
 359 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr)
 360 {
 361         long ret;
 362
 363         if (b->next_bio == NULL) return(0);
 364         switch (cmd)
 365         {
 366         case BIO_CTRL_DUP:
 367                 ret=0L;
 368                 break;
 369         default:
 370                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 371                 break;
 372         }
 373         return(ret);
 374 }
 375
 376 static int ebcdic_gets(BIO *bp, char *buf, int size)
 377 {
 378         int i, ret;
 379         if (bp->next_bio == NULL) return(0);
 380 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 381         for (i=0; i<size-1; ++i)
 382         {
 383                 ret = ebcdic_read(bp,&buf[i],1);
 384                 if (ret <= 0)
 385                         break;
 386                 else if (buf[i] == '\n')
 387                 {
 388                         ++i;
 389                         break;
 390                 }
 391         }
 392         if (i < size)
 393                 buf[i] = '\0';
 394         return (ret < 0 && i == 0) ? ret : i;
 395 }
 396
 397 static int ebcdic_puts(BIO *bp, char *str)
 398 {
 399         if (bp->next_bio == NULL) return(0);
 400         return ebcdic_write(bp, str, strlen(str));
 401 }
 402 #endif
 403
 404 int MAIN(int, char **);
 405
 406 int MAIN(int argc, char *argv[])
 407         {
 408         short port=PORT;
 409         char *CApath=NULL,*CAfile=NULL;
 410         char *context = NULL;
 411         char *dhfile = NULL;
 412         int badop=0,bugs=0;
 413         int ret=1;
 414         int off=0;
 415         int no_tmp_rsa=0,no_dhe=0,nocert=0;
 416         int state=0;
 417         SSL_METHOD *meth=NULL;
 418         ENGINE *e=NULL;
 419 #ifndef NO_DH
 420         DH *dh=NULL;
 421 #endif
 422
 423 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 424         meth=SSLv23_server_method();
 425 #elif !defined(NO_SSL3)
 426         meth=SSLv3_server_method();
 427 #elif !defined(NO_SSL2)
 428         meth=SSLv2_server_method();
 429 #endif
 430
 431         local_argc=argc;
 432         local_argv=argv;
 433
 434         apps_startup();
 435 #ifdef MONOLITH
 436         s_server_init();
 437 #endif
 438
 439         if (bio_err == NULL)
 440                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 441
 442         verify_depth=0;
 443 #ifdef FIONBIO
 444         s_nbio=0;
 445 #endif
 446         s_nbio_test=0;
 447
 448         argc--;
 449         argv++;
 450
 451         while (argc >= 1)
 452                 {
 453                 if      ((strcmp(*argv,"-port") == 0) ||
 454                          (strcmp(*argv,"-accept") == 0))
 455                         {
 456                         if (--argc < 1) goto bad;
 457                         if (!extract_port(*(++argv),&port))
 458                                 goto bad;
 459                         }
 460                 else if (strcmp(*argv,"-verify") == 0)
 461                         {
 462                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 463                         if (--argc < 1) goto bad;
 464                         verify_depth=atoi(*(++argv));
 465                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 466                         }
 467                 else if (strcmp(*argv,"-Verify") == 0)
 468                         {
 469                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 470                                 SSL_VERIFY_CLIENT_ONCE;
 471                         if (--argc < 1) goto bad;
 472                         verify_depth=atoi(*(++argv));
 473                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 474                         }
 475                 else if (strcmp(*argv,"-context") == 0)
 476                         {
 477                         if (--argc < 1) goto bad;
 478                         context= *(++argv);
 479                         }
 480                 else if (strcmp(*argv,"-cert") == 0)
 481                         {
 482                         if (--argc < 1) goto bad;
 483                         s_cert_file= *(++argv);
 484                         }
 485                 else if (strcmp(*argv,"-key") == 0)
 486                         {
 487                         if (--argc < 1) goto bad;
 488                         s_key_file= *(++argv);
 489                         }
 490                 else if (strcmp(*argv,"-dhparam") == 0)
 491                         {
 492                         if (--argc < 1) goto bad;
 493                         dhfile = *(++argv);
 494                         }
 495                 else if (strcmp(*argv,"-dcert") == 0)
 496                         {
 497                         if (--argc < 1) goto bad;
 498                         s_dcert_file= *(++argv);
 499                         }
 500                 else if (strcmp(*argv,"-dkey") == 0)
 501                         {
 502                         if (--argc < 1) goto bad;
 503                         s_dkey_file= *(++argv);
 504                         }
 505                 else if (strcmp(*argv,"-nocert") == 0)
 506                         {
 507                         nocert=1;
 508                         }
 509                 else if (strcmp(*argv,"-CApath") == 0)
 510                         {
 511                         if (--argc < 1) goto bad;
 512                         CApath= *(++argv);
 513                         }
 514                 else if (strcmp(*argv,"-cipher") == 0)
 515                         {
 516                         if (--argc < 1) goto bad;
 517                         cipher= *(++argv);
 518                         }
 519                 else if (strcmp(*argv,"-CAfile") == 0)
 520                         {
 521                         if (--argc < 1) goto bad;
 522                         CAfile= *(++argv);
 523                         }
 524 #ifdef FIONBIO
 525                 else if (strcmp(*argv,"-nbio") == 0)
 526                         { s_nbio=1; }
 527 #endif
 528                 else if (strcmp(*argv,"-nbio_test") == 0)
 529                         {
 530 #ifdef FIONBIO
 531                         s_nbio=1;
 532 #endif
 533                         s_nbio_test=1;
 534                         }
 535                 else if (strcmp(*argv,"-debug") == 0)
 536                         { s_debug=1; }
 537                 else if (strcmp(*argv,"-hack") == 0)
 538                         { hack=1; }
 539                 else if (strcmp(*argv,"-state") == 0)
 540                         { state=1; }
 541                 else if (strcmp(*argv,"-crlf") == 0)
 542                         { s_crlf=1; }
 543                 else if (strcmp(*argv,"-quiet") == 0)
 544                         { s_quiet=1; }
 545                 else if (strcmp(*argv,"-bugs") == 0)
 546                         { bugs=1; }
 547                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 548                         { no_tmp_rsa=1; }
 549                 else if (strcmp(*argv,"-no_dhe") == 0)
 550                         { no_dhe=1; }
 551                 else if (strcmp(*argv,"-www") == 0)
 552                         { www=1; }
 553                 else if (strcmp(*argv,"-WWW") == 0)
 554                         { www=2; }
 555                 else if (strcmp(*argv,"-no_ssl2") == 0)
 556                         { off|=SSL_OP_NO_SSLv2; }
 557                 else if (strcmp(*argv,"-no_ssl3") == 0)
 558                         { off|=SSL_OP_NO_SSLv3; }
 559                 else if (strcmp(*argv,"-no_tls1") == 0)
 560                         { off|=SSL_OP_NO_TLSv1; }
 561 #ifndef NO_SSL2
 562                 else if (strcmp(*argv,"-ssl2") == 0)
 563                         { meth=SSLv2_server_method(); }
 564 #endif
 565 #ifndef NO_SSL3
 566                 else if (strcmp(*argv,"-ssl3") == 0)
 567                         { meth=SSLv3_server_method(); }
 568 #endif
 569 #ifndef NO_TLS1
 570                 else if (strcmp(*argv,"-tls1") == 0)
 571                         { meth=TLSv1_server_method(); }
 572 #endif
 573                 else if (strcmp(*argv,"-engine") == 0)
 574                         {
 575                         if (--argc < 1) goto bad;
 576                         engine_id= *(++argv);
 577                         }
 578                 else
 579                         {
 580                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 581                         badop=1;
 582                         break;
 583                         }
 584                 argc--;
 585                 argv++;
 586                 }
 587         if (badop)
 588                 {
 589 bad:
 590                 sv_usage();
 591                 goto end;
 592                 }
 593
 594         app_RAND_load_file(NULL, bio_err, 0);
 595
 596         if (bio_s_out == NULL)
 597                 {
 598                 if (s_quiet && !s_debug)
 599                         {
 600                         bio_s_out=BIO_new(BIO_s_null());
 601                         }
 602                 else
 603                         {
 604                         if (bio_s_out == NULL)
 605                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 606                         }
 607                 }
 608
 609 #if !defined(NO_RSA) || !defined(NO_DSA)
 610         if (nocert)
 611 #endif
 612                 {
 613                 s_cert_file=NULL;
 614                 s_key_file=NULL;
 615                 s_dcert_file=NULL;
 616                 s_dkey_file=NULL;
 617                 }
 618
 619         SSL_load_error_strings();
 620         OpenSSL_add_ssl_algorithms();
 621
 622         if (engine_id != NULL)
 623                 {
 624                 if((e = ENGINE_by_id(engine_id)) == NULL)
 625                         {
 626                         BIO_printf(bio_err,"invalid engine\n");
 627                         ERR_print_errors(bio_err);
 628                         goto end;
 629                         }
 630                 if (s_debug)
 631                         {
 632                         ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,
 633                                 0, bio_err, 0);
 634                         }
 635                 if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
 636                         {
 637                         BIO_printf(bio_err,"can't use that engine\n");
 638                         ERR_print_errors(bio_err);
 639                         goto end;
 640                         }
 641                 BIO_printf(bio_err,"engine \"%s\" set.\n", engine_id);
 642                 ENGINE_free(e);
 643                 }
 644
 645         ctx=SSL_CTX_new(meth);
 646         if (ctx == NULL)
 647                 {
 648                 ERR_print_errors(bio_err);
 649                 goto end;
 650                 }
 651
 652         SSL_CTX_set_quiet_shutdown(ctx,1);
 653         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
 654         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
 655         SSL_CTX_set_options(ctx,off);
 656         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
 657
 658         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 659
 660         SSL_CTX_sess_set_cache_size(ctx,128);
 661
 662 #if 0
 663         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
 664 #endif
 665
 666 #if 0
 667         if (s_cert_file == NULL)
 668                 {
 669                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
 670                 goto end;
 671                 }
 672 #endif
 673
 674         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 675                 (!SSL_CTX_set_default_verify_paths(ctx)))
 676                 {
 677                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
 678                 ERR_print_errors(bio_err);
 679                 /* goto end; */
 680                 }
 681
 682 #ifndef NO_DH
 683         if (!no_dhe)
 684                 {
 685                 dh=load_dh_param(dhfile ? dhfile : s_cert_file);
 686                 if (dh != NULL)
 687                         {
 688                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
 689                         }
 690                 else
 691                         {
 692                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
 693                         dh=get_dh512();
 694                         }
 695                 (void)BIO_flush(bio_s_out);
 696
 697                 SSL_CTX_set_tmp_dh(ctx,dh);
 698                 DH_free(dh);
 699                 }
 700 #endif
 701
 702         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
 703                 goto end;
 704         if (s_dcert_file != NULL)
 705                 {
 706                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
 707                         goto end;
 708                 }
 709
 710 #ifndef NO_RSA
 711 #if 1
 712         SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
 713 #else
 714         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
 715                 {
 716                 RSA *rsa;
 717
 718                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
 719                 BIO_flush(bio_s_out);
 720
 721                 rsa=RSA_generate_key(512,RSA_F4,NULL);
 722
 723                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
 724                         {
 725                         ERR_print_errors(bio_err);
 726                         goto end;
 727                         }
 728                 RSA_free(rsa);
 729                 BIO_printf(bio_s_out,"\n");
 730                 }
 731 #endif
 732 #endif
 733
 734         if (cipher != NULL)
 735                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 736                 BIO_printf(bio_err,"error setting cipher list\n");
 737                 ERR_print_errors(bio_err);
 738                 goto end;
 739         }
 740         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
 741         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
 742                 sizeof s_server_session_id_context);
 743
 744         if (CAfile != NULL)
 745             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
 746
 747         BIO_printf(bio_s_out,"ACCEPT\n");
 748         if (www)
 749                 do_server(port,&accept_socket,www_body, context);
 750         else
 751                 do_server(port,&accept_socket,sv_body, context);
 752         print_stats(bio_s_out,ctx);
 753         ret=0;
 754 end:
 755         if (ctx != NULL) SSL_CTX_free(ctx);
 756         if (bio_s_out != NULL)
 757                 {
 758                 BIO_free(bio_s_out);
 759                 bio_s_out=NULL;
 760                 }
 761         EXIT(ret);
 762         }
 763
 764 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
 765         {
 766         BIO_printf(bio,"%4ld items in the session cache\n",
 767                 SSL_CTX_sess_number(ssl_ctx));
 768         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
 769                 SSL_CTX_sess_connect(ssl_ctx));
 770         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
 771                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
 772         BIO_printf(bio,"%4d client connects that finished\n",
 773                 SSL_CTX_sess_connect_good(ssl_ctx));
 774         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
 775                 SSL_CTX_sess_accept(ssl_ctx));
 776         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
 777                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
 778         BIO_printf(bio,"%4d server accepts that finished\n",
 779                 SSL_CTX_sess_accept_good(ssl_ctx));
 780         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
 781         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
 782         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
 783         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
 784         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
 785                 SSL_CTX_sess_cache_full(ssl_ctx),
 786                 SSL_CTX_sess_get_cache_size(ssl_ctx));
 787         }
 788
 789 static int sv_body(char *hostname, int s, unsigned char *context)
 790         {
 791         char *buf=NULL;
 792         fd_set readfds;
 793         int ret=1,width;
 794         int k,i;
 795         unsigned long l;
 796         SSL *con=NULL;
 797         BIO *sbio;
 798 #ifdef WINDOWS
 799         struct timeval tv;
 800 #endif
 801
 802         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
 803                 {
 804                 BIO_printf(bio_err,"out of memory\n");
 805                 goto err;
 806                 }
 807 #ifdef FIONBIO
 808         if (s_nbio)
 809                 {
 810                 unsigned long sl=1;
 811
 812                 if (!s_quiet)
 813                         BIO_printf(bio_err,"turning on non blocking io\n");
 814                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
 815                         ERR_print_errors(bio_err);
 816                 }
 817 #endif
 818
 819         if (con == NULL) {
 820                 con=SSL_new(ctx);
 821                 if(context)
 822                       SSL_set_session_id_context(con, context,
 823                                                  strlen((char *)context));
 824         }
 825         SSL_clear(con);
 826
 827         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 828         if (s_nbio_test)
 829                 {
 830                 BIO *test;
 831
 832                 test=BIO_new(BIO_f_nbio_test());
 833                 sbio=BIO_push(test,sbio);
 834                 }
 835         SSL_set_bio(con,sbio,sbio);
 836         SSL_set_accept_state(con);
 837         /* SSL_set_fd(con,s); */
 838
 839         if (s_debug)
 840                 {
 841                 con->debug=1;
 842                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
 843                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
 844                 }
 845
 846         width=s+1;
 847         for (;;)
 848                 {
 849                 int read_from_terminal;
 850                 int read_from_sslcon;
 851
 852                 read_from_terminal = 0;
 853                 read_from_sslcon = SSL_pending(con);
 854
 855                 if (!read_from_sslcon)
 856                         {
 857                         FD_ZERO(&readfds);
 858 #ifndef WINDOWS
 859                         FD_SET(fileno(stdin),&readfds);
 860 #endif
 861                         FD_SET(s,&readfds);
 862                         /* Note: under VMS with SOCKETSHR the second parameter is
 863                          * currently of type (int *) whereas under other systems
 864                          * it is (void *) if you don't have a cast it will choke
 865                          * the compiler: if you do have a cast then you can either
 866                          * go for (int *) or (void *).
 867                          */
 868 #ifdef WINDOWS
 869                         /* Under Windows we can't select on stdin: only
 870                          * on sockets. As a workaround we timeout the select every
 871                          * second and check for any keypress. In a proper Windows
 872                          * application we wouldn't do this because it is inefficient.
 873                          */
 874                         tv.tv_sec = 1;
 875                         tv.tv_usec = 0;
 876                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
 877                         if((i < 0) || (!i && !_kbhit() ) )continue;
 878                         if(_kbhit())
 879                                 read_from_terminal = 1;
 880 #else
 881                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
 882                         if (i <= 0) continue;
 883                         if (FD_ISSET(fileno(stdin),&readfds))
 884                                 read_from_terminal = 1;
 885 #endif
 886                         if (FD_ISSET(s,&readfds))
 887                                 read_from_sslcon = 1;
 888                         }
 889                 if (read_from_terminal)
 890                         {
 891                         if (s_crlf)
 892                                 {
 893                                 int j, lf_num;
 894
 895                                 i=read(fileno(stdin), buf, bufsize/2);
 896                                 lf_num = 0;
 897                                 /* both loops are skipped when i <= 0 */
 898                                 for (j = 0; j < i; j++)
 899                                         if (buf[j] == '\n')
 900                                                 lf_num++;
 901                                 for (j = i-1; j >= 0; j--)
 902                                         {
 903                                         buf[j+lf_num] = buf[j];
 904                                         if (buf[j] == '\n')
 905                                                 {
 906                                                 lf_num--;
 907                                                 i++;
 908                                                 buf[j+lf_num] = '\r';
 909                                                 }
 910                                         }
 911                                 assert(lf_num == 0);
 912                                 }
 913                         else
 914                                 i=read(fileno(stdin),buf,bufsize);
 915                         if (!s_quiet)
 916                                 {
 917                                 if ((i <= 0) || (buf[0] == 'Q'))
 918                                         {
 919                                         BIO_printf(bio_s_out,"DONE\n");
 920                                         SHUTDOWN(s);
 921                                         close_accept_socket();
 922                                         ret= -11;
 923                                         goto err;
 924                                         }
 925                                 if ((i <= 0) || (buf[0] == 'q'))
 926                                         {
 927                                         BIO_printf(bio_s_out,"DONE\n");
 928                                         SHUTDOWN(s);
 929         /*                              close_accept_socket();
 930                                         ret= -11;*/
 931                                         goto err;
 932                                         }
 933                                 if ((buf[0] == 'r') &&
 934                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 935                                         {
 936                                         SSL_renegotiate(con);
 937                                         i=SSL_do_handshake(con);
 938                                         printf("SSL_do_handshake -> %d\n",i);
 939                                         i=0; /*13; */
 940                                         continue;
 941                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
 942                                         }
 943                                 if ((buf[0] == 'R') &&
 944                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 945                                         {
 946                                         SSL_set_verify(con,
 947                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
 948                                         SSL_renegotiate(con);
 949                                         i=SSL_do_handshake(con);
 950                                         printf("SSL_do_handshake -> %d\n",i);
 951                                         i=0; /* 13; */
 952                                         continue;
 953                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
 954                                         }
 955                                 if (buf[0] == 'P')
 956                                         {
 957                                         static char *str="Lets print some clear text\n";
 958                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
 959                                         }
 960                                 if (buf[0] == 'S')
 961                                         {
 962                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
 963                                         }
 964                                 }
 965 #ifdef CHARSET_EBCDIC
 966                         ebcdic2ascii(buf,buf,i);
 967 #endif
 968                         l=k=0;
 969                         for (;;)
 970                                 {
 971                                 /* should do a select for the write */
 972 #ifdef RENEG
 973 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
 974 #endif
 975                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
 976                                 switch (SSL_get_error(con,k))
 977                                         {
 978                                 case SSL_ERROR_NONE:
 979                                         break;
 980                                 case SSL_ERROR_WANT_WRITE:
 981                                 case SSL_ERROR_WANT_READ:
 982                                 case SSL_ERROR_WANT_X509_LOOKUP:
 983                                         BIO_printf(bio_s_out,"Write BLOCK\n");
 984                                         break;
 985                                 case SSL_ERROR_SYSCALL:
 986                                 case SSL_ERROR_SSL:
 987                                         BIO_printf(bio_s_out,"ERROR\n");
 988                                         ERR_print_errors(bio_err);
 989                                         ret=1;
 990                                         goto err;
 991                                         /* break; */
 992                                 case SSL_ERROR_ZERO_RETURN:
 993                                         BIO_printf(bio_s_out,"DONE\n");
 994                                         ret=1;
 995                                         goto err;
 996                                         }
 997                                 l+=k;
 998                                 i-=k;
 999                                 if (i <= 0) break;
1000                                 }
1001                         }
1002                 if (read_from_sslcon)
1003                         {
1004                         if (!SSL_is_init_finished(con))
1005                                 {
1006                                 i=init_ssl_connection(con);
1007
1008                                 if (i < 0)
1009                                         {
1010                                         ret=0;
1011                                         goto err;
1012                                         }
1013                                 else if (i == 0)
1014                                         {
1015                                         ret=1;
1016                                         goto err;
1017                                         }
1018                                 }
1019                         else
1020                                 {
1021 again:
1022                                 i=SSL_read(con,(char *)buf,bufsize);
1023                                 switch (SSL_get_error(con,i))
1024                                         {
1025                                 case SSL_ERROR_NONE:
1026 #ifdef CHARSET_EBCDIC
1027                                         ascii2ebcdic(buf,buf,i);
1028 #endif
1029                                         write(fileno(stdout),buf,
1030                                                 (unsigned int)i);
1031                                         if (SSL_pending(con)) goto again;
1032                                         break;
1033                                 case SSL_ERROR_WANT_WRITE:
1034                                 case SSL_ERROR_WANT_READ:
1035                                 case SSL_ERROR_WANT_X509_LOOKUP:
1036                                         BIO_printf(bio_s_out,"Read BLOCK\n");
1037                                         break;
1038                                 case SSL_ERROR_SYSCALL:
1039                                 case SSL_ERROR_SSL:
1040                                         BIO_printf(bio_s_out,"ERROR\n");
1041                                         ERR_print_errors(bio_err);
1042                                         ret=1;
1043                                         goto err;
1044                                 case SSL_ERROR_ZERO_RETURN:
1045                                         BIO_printf(bio_s_out,"DONE\n");
1046                                         ret=1;
1047                                         goto err;
1048                                         }
1049                                 }
1050                         }
1051                 }
1052 err:
1053         BIO_printf(bio_s_out,"shutting down SSL\n");
1054 #if 1
1055         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1056 #else
1057         SSL_shutdown(con);
1058 #endif
1059         if (con != NULL) SSL_free(con);
1060         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1061         if (buf != NULL)
1062                 {
1063                 memset(buf,0,bufsize);
1064                 OPENSSL_free(buf);
1065                 }
1066         if (ret >= 0)
1067                 BIO_printf(bio_s_out,"ACCEPT\n");
1068         return(ret);
1069         }
1070
1071 static void close_accept_socket(void)
1072         {
1073         BIO_printf(bio_err,"shutdown accept socket\n");
1074         if (accept_socket >= 0)
1075                 {
1076                 SHUTDOWN2(accept_socket);
1077                 }
1078         }
1079
1080 static int init_ssl_connection(SSL *con)
1081         {
1082         int i;
1083         const char *str;
1084         X509 *peer;
1085         long verify_error;
1086         MS_STATIC char buf[BUFSIZ];
1087
1088         if ((i=SSL_accept(con)) <= 0)
1089                 {
1090                 if (BIO_sock_should_retry(i))
1091                         {
1092                         BIO_printf(bio_s_out,"DELAY\n");
1093                         return(1);
1094                         }
1095
1096                 BIO_printf(bio_err,"ERROR\n");
1097                 verify_error=SSL_get_verify_result(con);
1098                 if (verify_error != X509_V_OK)
1099                         {
1100                         BIO_printf(bio_err,"verify error:%s\n",
1101                                 X509_verify_cert_error_string(verify_error));
1102                         }
1103                 else
1104                         ERR_print_errors(bio_err);
1105                 return(0);
1106                 }
1107
1108         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1109
1110         peer=SSL_get_peer_certificate(con);
1111         if (peer != NULL)
1112                 {
1113                 BIO_printf(bio_s_out,"Client certificate\n");
1114                 PEM_write_bio_X509(bio_s_out,peer);
1115                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
1116                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1117                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
1118                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1119                 X509_free(peer);
1120                 }
1121
1122         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
1123                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1124         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1125         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1126         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1127         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1128                 TLS1_FLAGS_TLS_PADDING_BUG)
1129                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1130
1131         return(1);
1132         }
1133
1134 #ifndef NO_DH
1135 static DH *load_dh_param(char *dhfile)
1136         {
1137         DH *ret=NULL;
1138         BIO *bio;
1139
1140         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1141                 goto err;
1142         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1143 err:
1144         if (bio != NULL) BIO_free(bio);
1145         return(ret);
1146         }
1147 #endif
1148
1149 #if 0
1150 static int load_CA(SSL_CTX *ctx, char *file)
1151         {
1152         FILE *in;
1153         X509 *x=NULL;
1154
1155         if ((in=fopen(file,"r")) == NULL)
1156                 return(0);
1157
1158         for (;;)
1159                 {
1160                 if (PEM_read_X509(in,&x,NULL) == NULL)
1161                         break;
1162                 SSL_CTX_add_client_CA(ctx,x);
1163                 }
1164         if (x != NULL) X509_free(x);
1165         fclose(in);
1166         return(1);
1167         }
1168 #endif
1169
1170 static int www_body(char *hostname, int s, unsigned char *context)
1171         {
1172         char *buf=NULL;
1173         int ret=1;
1174         int i,j,k,blank,dot;
1175         struct stat st_buf;
1176         SSL *con;
1177         SSL_CIPHER *c;
1178         BIO *io,*ssl_bio,*sbio;
1179         long total_bytes;
1180
1181         buf=OPENSSL_malloc(bufsize);
1182         if (buf == NULL) return(0);
1183         io=BIO_new(BIO_f_buffer());
1184         ssl_bio=BIO_new(BIO_f_ssl());
1185         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1186
1187 #ifdef FIONBIO
1188         if (s_nbio)
1189                 {
1190                 unsigned long sl=1;
1191
1192                 if (!s_quiet)
1193                         BIO_printf(bio_err,"turning on non blocking io\n");
1194                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1195                         ERR_print_errors(bio_err);
1196                 }
1197 #endif
1198
1199         /* lets make the output buffer a reasonable size */
1200         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1201
1202         if ((con=SSL_new(ctx)) == NULL) goto err;
1203         if(context) SSL_set_session_id_context(con, context,
1204                                                strlen((char *)context));
1205
1206         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1207         if (s_nbio_test)
1208                 {
1209                 BIO *test;
1210
1211                 test=BIO_new(BIO_f_nbio_test());
1212                 sbio=BIO_push(test,sbio);
1213                 }
1214         SSL_set_bio(con,sbio,sbio);
1215         SSL_set_accept_state(con);
1216
1217         /* SSL_set_fd(con,s); */
1218         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1219         BIO_push(io,ssl_bio);
1220 #ifdef CHARSET_EBCDIC
1221         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1222 #endif
1223
1224         if (s_debug)
1225                 {
1226                 con->debug=1;
1227                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1228                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1229                 }
1230
1231         blank=0;
1232         for (;;)
1233                 {
1234                 if (hack)
1235                         {
1236                         i=SSL_accept(con);
1237
1238                         switch (SSL_get_error(con,i))
1239                                 {
1240                         case SSL_ERROR_NONE:
1241                                 break;
1242                         case SSL_ERROR_WANT_WRITE:
1243                         case SSL_ERROR_WANT_READ:
1244                         case SSL_ERROR_WANT_X509_LOOKUP:
1245                                 continue;
1246                         case SSL_ERROR_SYSCALL:
1247                         case SSL_ERROR_SSL:
1248                         case SSL_ERROR_ZERO_RETURN:
1249                                 ret=1;
1250                                 goto err;
1251                                 /* break; */
1252                                 }
1253
1254                         SSL_renegotiate(con);
1255                         SSL_write(con,NULL,0);
1256                         }
1257
1258                 i=BIO_gets(io,buf,bufsize-1);
1259                 if (i < 0) /* error */
1260                         {
1261                         if (!BIO_should_retry(io))
1262                                 {
1263                                 if (!s_quiet)
1264                                         ERR_print_errors(bio_err);
1265                                 goto err;
1266                                 }
1267                         else
1268                                 {
1269                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1270 #ifndef MSDOS
1271                                 sleep(1);
1272 #endif
1273                                 continue;
1274                                 }
1275                         }
1276                 else if (i == 0) /* end of input */
1277                         {
1278                         ret=1;
1279                         goto end;
1280                         }
1281
1282                 /* else we have data */
1283                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1284                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1285                         {
1286                         char *p;
1287                         X509 *peer;
1288                         STACK_OF(SSL_CIPHER) *sk;
1289                         static char *space="                          ";
1290
1291                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1292                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1293                         BIO_puts(io,"<pre>\n");
1294 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1295                         BIO_puts(io,"\n");
1296                         for (i=0; i<local_argc; i++)
1297                                 {
1298                                 BIO_puts(io,local_argv[i]);
1299                                 BIO_write(io," ",1);
1300                                 }
1301                         BIO_puts(io,"\n");
1302
1303                         /* The following is evil and should not really
1304                          * be done */
1305                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1306                         sk=SSL_get_ciphers(con);
1307                         j=sk_SSL_CIPHER_num(sk);
1308                         for (i=0; i<j; i++)
1309                                 {
1310                                 c=sk_SSL_CIPHER_value(sk,i);
1311                                 BIO_printf(io,"%-11s:%-25s",
1312                                         SSL_CIPHER_get_version(c),
1313                                         SSL_CIPHER_get_name(c));
1314                                 if ((((i+1)%2) == 0) && (i+1 != j))
1315                                         BIO_puts(io,"\n");
1316                                 }
1317                         BIO_puts(io,"\n");
1318                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1319                         if (p != NULL)
1320                                 {
1321                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1322                                 j=i=0;
1323                                 while (*p)
1324                                         {
1325                                         if (*p == ':')
1326                                                 {
1327                                                 BIO_write(io,space,26-j);
1328                                                 i++;
1329                                                 j=0;
1330                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1331                                                 }
1332                                         else
1333                                                 {
1334                                                 BIO_write(io,p,1);
1335                                                 j++;
1336                                                 }
1337                                         p++;
1338                                         }
1339                                 BIO_puts(io,"\n");
1340                                 }
1341                         BIO_printf(io,((con->hit)
1342                                 ?"---\nReused, "
1343                                 :"---\nNew, "));
1344                         c=SSL_get_current_cipher(con);
1345                         BIO_printf(io,"%s, Cipher is %s\n",
1346                                 SSL_CIPHER_get_version(c),
1347                                 SSL_CIPHER_get_name(c));
1348                         SSL_SESSION_print(io,SSL_get_session(con));
1349                         BIO_printf(io,"---\n");
1350                         print_stats(io,SSL_get_SSL_CTX(con));
1351                         BIO_printf(io,"---\n");
1352                         peer=SSL_get_peer_certificate(con);
1353                         if (peer != NULL)
1354                                 {
1355                                 BIO_printf(io,"Client certificate\n");
1356                                 X509_print(io,peer);
1357                                 PEM_write_bio_X509(io,peer);
1358                                 }
1359                         else
1360                                 BIO_puts(io,"no client certificate available\n");
1361                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1362                         break;
1363                         }
1364                 else if ((www == 2) && (strncmp("GET /",buf,5) == 0))
1365                         {
1366                         BIO *file;
1367                         char *p,*e;
1368                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1369
1370                         /* skip the '/' */
1371                         p= &(buf[5]);
1372                         dot=0;
1373                         for (e=p; *e != '\0'; e++)
1374                                 {
1375                                 if (e[0] == ' ') break;
1376                                 if (    (e[0] == '.') &&
1377                                         (strncmp(&(e[-1]),"/../",4) == 0))
1378                                         dot=1;
1379                                 }
1380
1381
1382                         if (*e == '\0')
1383                                 {
1384                                 BIO_puts(io,text);
1385                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1386                                 break;
1387                                 }
1388                         *e='\0';
1389
1390                         if (dot)
1391                                 {
1392                                 BIO_puts(io,text);
1393                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1394                                 break;
1395                                 }
1396
1397                         if (*p == '/')
1398                                 {
1399                                 BIO_puts(io,text);
1400                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1401                                 break;
1402                                 }
1403
1404                         /* append if a directory lookup */
1405                         if (e[-1] == '/')
1406                                 strcat(p,"index.html");
1407
1408                         /* if a directory, do the index thang */
1409                         if (stat(p,&st_buf) < 0)
1410                                 {
1411                                 BIO_puts(io,text);
1412                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1413                                 ERR_print_errors(io);
1414                                 break;
1415                                 }
1416                         if (S_ISDIR(st_buf.st_mode))
1417                                 {
1418                                 strcat(p,"/index.html");
1419                                 }
1420
1421                         if ((file=BIO_new_file(p,"r")) == NULL)
1422                                 {
1423                                 BIO_puts(io,text);
1424                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1425                                 ERR_print_errors(io);
1426                                 break;
1427                                 }
1428
1429                         if (!s_quiet)
1430                                 BIO_printf(bio_err,"FILE:%s\n",p);
1431
1432                         i=strlen(p);
1433                         if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1434                                 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1435                                 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1436                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1437                         else
1438                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1439                         /* send the file */
1440                         total_bytes=0;
1441                         for (;;)
1442                                 {
1443                                 i=BIO_read(file,buf,bufsize);
1444                                 if (i <= 0) break;
1445
1446 #ifdef RENEG
1447                                 total_bytes+=i;
1448                                 fprintf(stderr,"%d\n",i);
1449                                 if (total_bytes > 3*1024)
1450                                         {
1451                                         total_bytes=0;
1452                                         fprintf(stderr,"RENEGOTIATE\n");
1453                                         SSL_renegotiate(con);
1454                                         }
1455 #endif
1456
1457                                 for (j=0; j<i; )
1458                                         {
1459 #ifdef RENEG
1460 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1461 #endif
1462                                         k=BIO_write(io,&(buf[j]),i-j);
1463                                         if (k <= 0)
1464                                                 {
1465                                                 if (!BIO_should_retry(io))
1466                                                         goto write_error;
1467                                                 else
1468                                                         {
1469                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1470                                                         }
1471                                                 }
1472                                         else
1473                                                 {
1474                                                 j+=k;
1475                                                 }
1476                                         }
1477                                 }
1478 write_error:
1479                         BIO_free(file);
1480                         break;
1481                         }
1482                 }
1483
1484         for (;;)
1485                 {
1486                 i=(int)BIO_flush(io);
1487                 if (i <= 0)
1488                         {
1489                         if (!BIO_should_retry(io))
1490                                 break;
1491                         }
1492                 else
1493                         break;
1494                 }
1495 end:
1496 #if 1
1497         /* make sure we re-use sessions */
1498         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1499 #else
1500         /* This kills performance */
1501 /*      SSL_shutdown(con); A shutdown gets sent in the
1502  *      BIO_free_all(io) procession */
1503 #endif
1504
1505 err:
1506
1507         if (ret >= 0)
1508                 BIO_printf(bio_s_out,"ACCEPT\n");
1509
1510         if (buf != NULL) OPENSSL_free(buf);
1511         if (io != NULL) BIO_free_all(io);
1512 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1513         return(ret);
1514         }
1515
1516 #ifndef NO_RSA
1517 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1518         {
1519         static RSA *rsa_tmp=NULL;
1520
1521         if (rsa_tmp == NULL)
1522                 {
1523                 if (!s_quiet)
1524                         {
1525                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1526                         (void)BIO_flush(bio_err);
1527                         }
1528                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1529                 if (!s_quiet)
1530                         {
1531                         BIO_printf(bio_err,"\n");
1532                         (void)BIO_flush(bio_err);
1533                         }
1534                 }
1535         return(rsa_tmp);
1536         }
1537 #endif