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/* apps/s_server.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

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#include <assert.h>
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <openssl/e_os2.h>
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#define APPS_WIN16
#endif

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/* With IPv6, it looks like Digital has mixed up the proper order of
   recursive header file inclusion, resulting in the compiler complaining
   that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
   is needed to have fileno() declared correctly...  So let's define u_int */
#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
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#define __U_INT
typedef unsigned int u_int;
#endif

#include <openssl/lhash.h>
#include <openssl/bn.h>
#define USE_SOCKETS
#include "apps.h"
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/x509.h>
#include <openssl/ssl.h>
#if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
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/* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
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#undef FIONBIO
#endif

static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
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static int sv_body(char *hostname, int s, unsigned char *context);
static int www_body(char *hostname, int s, unsigned char *context);
static void close_accept_socket(void );
static void sv_usage(void);
static int init_ssl_connection(SSL *s);
static void print_stats(BIO *bp,SSL_CTX *ctx);
static int generate_session_id(const SSL *ssl, unsigned char *id,
				unsigned int *id_len);
static DH *load_dh_param(char *dhfile);
static DH *get_dh512(void);
#ifdef MONOLITH
static void s_server_init(void);
#endif
# if defined(_S_IFMT) && defined(_S_IFDIR)
#  define S_ISDIR(a)	(((a) & _S_IFMT) == _S_IFDIR)
# else
#  define S_ISDIR(a)	(((a) & S_IFMT) == S_IFDIR)
# endif
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#endif
static unsigned char dh512_p[]={
	0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
	0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
	0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
	0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
	0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
	0x47,0x74,0xE8,0x33,
	};
static unsigned char dh512_g[]={
	0x02,
	};

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static DH *get_dh512(void)
	{
	DH *dh=NULL;

	if ((dh=DH_new()) == NULL) return(NULL);
	dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
	dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
	if ((dh->p == NULL) || (dh->g == NULL))
		return(NULL);
	return(dh);
	}

/* static int load_CA(SSL_CTX *ctx, char *file);*/

#undef BUFSIZZ
static int bufsize=BUFSIZZ;
static int accept_socket= -1;

#define TEST_CERT	"server.pem"
#undef PROG
#define PROG		s_server_main

extern int verify_depth;

static char *cipher=NULL;
static int s_server_verify=SSL_VERIFY_NONE;
static int s_server_session_id_context = 1; /* anything will do */
static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
static char *s_dcert_file=NULL,*s_dkey_file=NULL;
#ifdef FIONBIO
static int s_nbio=0;
#endif
static int s_nbio_test=0;
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int s_crlf=0;
static SSL_CTX *ctx=NULL;
static int www=0;

static BIO *bio_s_out=NULL;
static int s_debug=0;
static int s_quiet=0;

static const char *session_id_prefix=NULL;
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static void s_server_init(void)
	cipher=NULL;
	s_server_verify=SSL_VERIFY_NONE;
	s_dcert_file=NULL;
	s_dkey_file=NULL;
	s_cert_file=TEST_CERT;
	s_key_file=NULL;
#ifdef FIONBIO
	s_nbio=0;
#endif
	s_nbio_test=0;
	ctx=NULL;
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