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