/* apps/sess_id.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.]

  */

 #include <stdio.h>

 #include <stdlib.h>

 #include <string.h>

 #include "apps.h"

 #include <openssl/bio.h>

 #include <openssl/err.h>

 #include <openssl/x509.h>

 #include <openssl/pem.h>

 #include <openssl/ssl.h>

 #undef PROG

 #define PROG	sess_id_main

 static const char *sess_id_usage[]={

 "usage: sess_id args\n",

 "\n",

 " -inform arg     - input format - default PEM (DER or PEM)\n",

 " -outform arg    - output format - default PEM\n",

 " -in arg         - input file - default stdin\n",

 " -out arg        - output file - default stdout\n",

 " -text           - print ssl session id details\n",

 " -cert           - output certificate \n",

 " -noout          - no CRL output\n",

 " -context arg    - set the session ID context\n",

 NULL

 };

 static SSL_SESSION *load_sess_id(char *file, int format);

 int MAIN(int, char **);

 int MAIN(int argc, char **argv)

 	{

 	SSL_SESSION *x=NULL;

 	int ret=1,i,num,badops=0;

 	BIO *out=NULL;

 	int informat,outformat;

 	char *infile=NULL,*outfile=NULL,*context=NULL;

 	int cert=0,noout=0,text=0;

 	const char **pp;

 	apps_startup();

 	if (bio_err == NULL)

 		if ((bio_err=BIO_new(BIO_s_file())) != NULL)

 			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);

 	informat=FORMAT_PEM;

 	outformat=FORMAT_PEM;

 	argc--;

 	argv++;

 	num=0;

 	while (argc >= 1)

 		{

 		if 	(strcmp(*argv,"-inform") == 0)

 			{

 			if (--argc < 1) goto bad;

 			informat=str2fmt(*(++argv));

 			}

 		else if (strcmp(*argv,"-outform") == 0)

 			{

 			if (--argc < 1) goto bad;

 			outformat=str2fmt(*(++argv));

 			}

 		else if (strcmp(*argv,"-in") == 0)

 			{

 			if (--argc < 1) goto bad;

 			infile= *(++argv);

 			}

 		else if (strcmp(*argv,"-out") == 0)

 			{

 			if (--argc < 1) goto bad;

 			outfile= *(++argv);

 			}

 		else if (strcmp(*argv,"-text") == 0)

 			text= ++num;

 		else if (strcmp(*argv,"-cert") == 0)

 			cert= ++num;

 		else if (strcmp(*argv,"-noout") == 0)

 			noout= ++num;

 		else if (strcmp(*argv,"-context") == 0)

 		    {

 		    if(--argc < 1) goto bad;

 		    context=*++argv;

 		    }

 		else

 			{

 			BIO_printf(bio_err,"unknown option %s\n",*argv);

 			badops=1;

 			break;

 			}

 		argc--;

 		argv++;

 		}

 	if (badops)

 		{

 bad:

 		for (pp=sess_id_usage; (*pp != NULL); pp++)

 			BIO_printf(bio_err,"%s",*pp);

 		goto end;

 		}

 	ERR_load_crypto_strings();

 	x=load_sess_id(infile,informat);

 	if (x == NULL) { goto end; }

 	if(context)

 	    {

 	    x->sid_ctx_length=strlen(context);

 	    if(x->sid_ctx_length > SSL_MAX_SID_CTX_LENGTH)

 		{

 		BIO_printf(bio_err,"Context too long\n");

 		goto end;

 		}

 	    memcpy(x->sid_ctx,context,x->sid_ctx_length);

 	    }

 #ifdef undef

 	/* just testing for memory leaks :-) */

 	{

 	SSL_SESSION *s;

 	char buf[1024*10],*p;

 	int i;

 	s=SSL_SESSION_new();

 	p= &buf;

 	i=i2d_SSL_SESSION(x,&p);

 	p= &buf;

 	d2i_SSL_SESSION(&s,&p,(long)i);

 	p= &buf;

 	d2i_SSL_SESSION(&s,&p,(long)i);

 	p= &buf;

 	d2i_SSL_SESSION(&s,&p,(long)i);

 	SSL_SESSION_free(s);

 	}

 #endif

 	if (!noout || text)

 		{

 		out=BIO_new(BIO_s_file());

 		if (out == NULL)

 			{

 			ERR_print_errors(bio_err);

 			goto end;

 			}

 		if (outfile == NULL)

 			{

 			BIO_set_fp(out,stdout,BIO_NOCLOSE);

 #ifdef OPENSSL_SYS_VMS

 			{

 			BIO *tmpbio = BIO_new(BIO_f_linebuffer());

 			out = BIO_push(tmpbio, out);

 			}

 #endif

 			}

 		else

 			{

 			if (BIO_write_filename(out,outfile) <= 0)

 				{

 				perror(outfile);

 				goto end;

 				}

 			}

 		}

 	if (text)

 		{

 		SSL_SESSION_print(out,x);

 		if (cert)

 			{

 			if (x->peer == NULL)

 				BIO_puts(out,"No certificate present\n");

 			else

 				X509_print(out,x->peer);

 			}

 		}

 	if (!noout && !cert)

 		{

 		if 	(outformat == FORMAT_ASN1)

 			i=i2d_SSL_SESSION_bio(out,x);

 		else if (outformat == FORMAT_PEM)

 			i=PEM_write_bio_SSL_SESSION(out,x);

 		else	{

 			BIO_printf(bio_err,"bad output format specified for outfile\n");

 			goto end;

 			}

 		if (!i) {

 			BIO_printf(bio_err,"unable to write SSL_SESSION\n");

 			goto end;

 			}

 		}

 	else if (!noout && (x->peer != NULL)) /* just print the certificate */

 		{

 		if 	(outformat == FORMAT_ASN1)

 			i=(int)i2d_X509_bio(out,x->peer);

 		else if (outformat == FORMAT_PEM)

 			i=PEM_write_bio_X509(out,x->peer);

 		else	{

 			BIO_printf(bio_err,"bad output format specified for outfile\n");

 			goto end;

 			}

 		if (!i) {

 			BIO_printf(bio_err,"unable to write X509\n");

 			goto end;

 			}

 		}

 	ret=0;

 end:

 	if (out != NULL) BIO_free_all(out);

 	if (x != NULL) SSL_SESSION_free(x);

 	apps_shutdown();

 	OPENSSL_EXIT(ret);

 	}

 static SSL_SESSION *load_sess_id(char *infile, int format)

 	{

 	SSL_SESSION *x=NULL;

 	BIO *in=NULL;

 	in=BIO_new(BIO_s_file());

 	if (in == NULL)

 		{

 		ERR_print_errors(bio_err);

 		goto end;

 		}

 	if (infile == NULL)

 		BIO_set_fp(in,stdin,BIO_NOCLOSE);

 	else

 		{

 		if (BIO_read_filename(in,infile) <= 0)

 			{

 			perror(infile);

 			goto end;

 			}

 		}

 	if 	(format == FORMAT_ASN1)

 		x=d2i_SSL_SESSION_bio(in,NULL);

 	else if (format == FORMAT_PEM)

 		x=PEM_read_bio_SSL_SESSION(in,NULL,NULL,NULL);

 	else	{

 		BIO_printf(bio_err,"bad input format specified for input crl\n");

 		goto end;

 		}

 	if (x == NULL)

 		{

 		BIO_printf(bio_err,"unable to load SSL_SESSION\n");

 		ERR_print_errors(bio_err);

 		goto end;

 		}

 end:

 	if (in != NULL) BIO_free(in);

 	return(x);

 	}