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