[thirdparty/openssl.git] / apps / dh.c

/* apps/dh.c */
/* obsoleted by dhparam.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 <openssl/opensslconf.h>	/* for OPENSSL_NO_DH */
#ifndef OPENSSL_NO_DH
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <string.h>
#include "apps.h"
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/bn.h>
#include <openssl/dh.h>
#include <openssl/x509.h>
#include <openssl/pem.h>

#undef PROG
#define PROG	dh_main

/*-
 * -inform arg	- input format - default PEM (DER or PEM)
 * -outform arg - output format - default PEM
 * -in arg	- input file - default stdin
 * -out arg	- output file - default stdout
 * -check	- check the parameters are ok
 * -noout
 * -text
 * -C
 */

int MAIN(int, char **);

int MAIN(int argc, char **argv)
	{
	DH *dh=NULL;
	int i,badops=0,text=0;
	BIO *in=NULL,*out=NULL;
	int informat,outformat,check=0,noout=0,C=0,ret=1;
	char *infile,*outfile,*prog;
#ifndef OPENSSL_NO_ENGINE
	char *engine;
#endif

	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);

	if (!load_config(bio_err, NULL))
		goto end;

#ifndef OPENSSL_NO_ENGINE
	engine=NULL;
#endif
	infile=NULL;
	outfile=NULL;
	informat=FORMAT_PEM;
	outformat=FORMAT_PEM;

	prog=argv[0];
	argc--;
	argv++;
	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);
			}
#ifndef OPENSSL_NO_ENGINE
		else if (strcmp(*argv,"-engine") == 0)
			{
			if (--argc < 1) goto bad;
			engine= *(++argv);
			}
#endif
		else if (strcmp(*argv,"-check") == 0)
			check=1;
		else if (strcmp(*argv,"-text") == 0)
			text=1;
		else if (strcmp(*argv,"-C") == 0)
			C=1;
		else if (strcmp(*argv,"-noout") == 0)
			noout=1;
		else
			{
			BIO_printf(bio_err,"unknown option %s\n",*argv);
			badops=1;
			break;
			}
		argc--;
		argv++;
		}

	if (badops)
		{
bad:
		BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
		BIO_printf(bio_err,"where options are\n");
		BIO_printf(bio_err," -inform arg   input format - one of DER PEM\n");
		BIO_printf(bio_err," -outform arg  output format - one of DER PEM\n");
		BIO_printf(bio_err," -in arg       input file\n");
		BIO_printf(bio_err," -out arg      output file\n");
		BIO_printf(bio_err," -check        check the DH parameters\n");
		BIO_printf(bio_err," -text         print a text form of the DH parameters\n");
		BIO_printf(bio_err," -C            Output C code\n");
		BIO_printf(bio_err," -noout        no output\n");
#ifndef OPENSSL_NO_ENGINE
		BIO_printf(bio_err," -engine e     use engine e, possibly a hardware device.\n");
#endif
		goto end;
		}

	ERR_load_crypto_strings();

#ifndef OPENSSL_NO_ENGINE
        setup_engine(bio_err, engine, 0);
#endif

	in=BIO_new(BIO_s_file());
	out=BIO_new(BIO_s_file());
	if ((in == NULL) || (out == 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 (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	(informat == FORMAT_ASN1)
		dh=d2i_DHparams_bio(in,NULL);
	else if (informat == FORMAT_PEM)
		dh=PEM_read_bio_DHparams(in,NULL,NULL,NULL);
	else
		{
		BIO_printf(bio_err,"bad input format specified\n");
		goto end;
		}
	if (dh == NULL)
		{
		BIO_printf(bio_err,"unable to load DH parameters\n");
		ERR_print_errors(bio_err);
		goto end;
		}

	
	if (text)
		{
		DHparams_print(out,dh);
#ifdef undef
		printf("p=");
		BN_print(stdout,dh->p);
		printf("\ng=");
		BN_print(stdout,dh->g);
		printf("\n");
		if (dh->length != 0)
			printf("recommended private length=%ld\n",dh->length);
#endif
		}
	
	if (check)
		{
		if (!DH_check(dh,&i))
			{
			ERR_print_errors(bio_err);
			goto end;
			}
		if (i & DH_CHECK_P_NOT_PRIME)
			printf("p value is not prime\n");
		if (i & DH_CHECK_P_NOT_SAFE_PRIME)
			printf("p value is not a safe prime\n");
		if (i & DH_UNABLE_TO_CHECK_GENERATOR)
			printf("unable to check the generator value\n");
		if (i & DH_NOT_SUITABLE_GENERATOR)
			printf("the g value is not a generator\n");
		if (i == 0)
			printf("DH parameters appear to be ok.\n");
		}
	if (C)
		{
		unsigned char *data;
		int len,l,bits;

		len=BN_num_bytes(dh->p);
		bits=BN_num_bits(dh->p);
		data=(unsigned char *)OPENSSL_malloc(len);
		if (data == NULL)
			{
			perror("OPENSSL_malloc");
			goto end;
			}
		l=BN_bn2bin(dh->p,data);
		printf("static unsigned char dh%d_p[]={",bits);
		for (i=0; i<l; i++)
			{
			if ((i%12) == 0) printf("\n\t");
			printf("0x%02X,",data[i]);
			}
		printf("\n\t};\n");

		l=BN_bn2bin(dh->g,data);
		printf("static unsigned char dh%d_g[]={",bits);
		for (i=0; i<l; i++)
			{
			if ((i%12) == 0) printf("\n\t");
			printf("0x%02X,",data[i]);
			}
		printf("\n\t};\n\n");

		printf("DH *get_dh%d()\n\t{\n",bits);
		printf("\tDH *dh;\n\n");
		printf("\tif ((dh=DH_new()) == NULL) return(NULL);\n");
		printf("\tdh->p=BN_bin2bn(dh%d_p,sizeof(dh%d_p),NULL);\n",
			bits,bits);
		printf("\tdh->g=BN_bin2bn(dh%d_g,sizeof(dh%d_g),NULL);\n",
			bits,bits);
		printf("\tif ((dh->p == NULL) || (dh->g == NULL))\n");
		printf("\t\treturn(NULL);\n");
		printf("\treturn(dh);\n\t}\n");
		OPENSSL_free(data);
		}


	if (!noout)
		{
		if 	(outformat == FORMAT_ASN1)
			i=i2d_DHparams_bio(out,dh);
		else if (outformat == FORMAT_PEM)
			i=PEM_write_bio_DHparams(out,dh);
		else	{
			BIO_printf(bio_err,"bad output format specified for outfile\n");
			goto end;
			}
		if (!i)
			{
			BIO_printf(bio_err,"unable to write DH parameters\n");
			ERR_print_errors(bio_err);
			goto end;
			}
		}
	ret=0;
end:
	if (in != NULL) BIO_free(in);
	if (out != NULL) BIO_free_all(out);
	if (dh != NULL) DH_free(dh);
	apps_shutdown();
	OPENSSL_EXIT(ret);
	}
#else /* !OPENSSL_NO_DH */

# if PEDANTIC
static void *dummy=&dummy;
# endif

#endif
Commit	Line	Data
d02b48c6	1	/* apps/dh.c */
41918458	2	/* obsoleted by dhparam.c */
58964a49	3	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6 RE	4	* All rights reserved.
	5	*
	6	* This package is an SSL implementation written
	7	* by Eric Young (eay@cryptsoft.com).
	8	* The implementation was written so as to conform with Netscapes SSL.
	9	*
	10	* This library is free for commercial and non-commercial use as long as
	11	* the following conditions are aheared to. The following conditions
	12	* apply to all code found in this distribution, be it the RC4, RSA,
	13	* lhash, DES, etc., code; not just the SSL code. The SSL documentation
	14	* included with this distribution is covered by the same copyright terms
	15	* except that the holder is Tim Hudson (tjh@cryptsoft.com).
	16	*
	17	* Copyright remains Eric Young's, and as such any Copyright notices in
	18	* the code are not to be removed.
	19	* If this package is used in a product, Eric Young should be given attribution
	20	* as the author of the parts of the library used.
	21	* This can be in the form of a textual message at program startup or
	22	* in documentation (online or textual) provided with the package.
	23	*
	24	* Redistribution and use in source and binary forms, with or without
	25	* modification, are permitted provided that the following conditions
	26	* are met:
	27	* 1. Redistributions of source code must retain the copyright
	28	* notice, this list of conditions and the following disclaimer.
	29	* 2. Redistributions in binary form must reproduce the above copyright
	30	* notice, this list of conditions and the following disclaimer in the
	31	* documentation and/or other materials provided with the distribution.
	32	* 3. All advertising materials mentioning features or use of this software
	33	* must display the following acknowledgement:
	34	* "This product includes cryptographic software written by
	35	* Eric Young (eay@cryptsoft.com)"
	36	* The word 'cryptographic' can be left out if the rouines from the library
	37	* being used are not cryptographic related :-).
	38	* 4. If you include any Windows specific code (or a derivative thereof) from
	39	* the apps directory (application code) you must include an acknowledgement:
	40	* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
	41	*
	42	* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
	43	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	44	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	45	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	46	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	47	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	48	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	49	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	50	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	51	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	52	* SUCH DAMAGE.
	53	*
	54	* The licence and distribution terms for any publically available version or
	55	* derivative of this code cannot be changed. i.e. this code cannot simply be
	56	* copied and put under another distribution licence
	57	* [including the GNU Public Licence.]
	58	*/
	59
3eeaab4b	60	#include <openssl/opensslconf.h> /* for OPENSSL_NO_DH */
cf1b7d96	61	#ifndef OPENSSL_NO_DH
d02b48c6 RE	62	#include <stdio.h>
	63	#include <stdlib.h>
	64	#include <time.h>
	65	#include <string.h>
	66	#include "apps.h"
ec577822 BM	67	#include <openssl/bio.h>
	68	#include <openssl/err.h>
	69	#include <openssl/bn.h>
	70	#include <openssl/dh.h>
	71	#include <openssl/x509.h>
	72	#include <openssl/pem.h>
d02b48c6 RE	73
	74	#undef PROG
	75	#define PROG dh_main
	76
6977c7e2 TH	77	/*-
6977c7e2 TH	78	* -inform arg - input format - default PEM (DER or PEM)
d02b48c6 RE	79	* -outform arg - output format - default PEM
	80	* -in arg - input file - default stdin
	81	* -out arg - output file - default stdout
	82	* -check - check the parameters are ok
	83	* -noout
	84	* -text
	85	* -C
	86	*/
	87
667ac4ec RE	88	int MAIN(int, char **);
667ac4ec RE	89
6b691a5c	90	int MAIN(int argc, char **argv)
d02b48c6 RE	91	{
	92	DH *dh=NULL;
	93	int i,badops=0,text=0;
	94	BIO in=NULL,out=NULL;
	95	int informat,outformat,check=0,noout=0,C=0,ret=1;
0b13e9f0 RL	96	char infile,outfile,*prog;
	97	#ifndef OPENSSL_NO_ENGINE
	98	char *engine;
	99	#endif
d02b48c6 RE	100
	101	apps_startup();
	102
	103	if (bio_err == NULL)
	104	if ((bio_err=BIO_new(BIO_s_file())) != NULL)
58964a49	105	BIO_set_fp(bio_err,stderr,BIO_NOCLOSE\|BIO_FP_TEXT);
d02b48c6	106
3647bee2 DSH	107	if (!load_config(bio_err, NULL))
	108	goto end;
	109
0b13e9f0	110	#ifndef OPENSSL_NO_ENGINE
5270e702	111	engine=NULL;
0b13e9f0	112	#endif
d02b48c6 RE	113	infile=NULL;
	114	outfile=NULL;
	115	informat=FORMAT_PEM;
	116	outformat=FORMAT_PEM;
	117
	118	prog=argv[0];
	119	argc--;
	120	argv++;
	121	while (argc >= 1)
	122	{
	123	if (strcmp(*argv,"-inform") == 0)
	124	{
	125	if (--argc < 1) goto bad;
	126	informat=str2fmt(*(++argv));
	127	}
	128	else if (strcmp(*argv,"-outform") == 0)
	129	{
	130	if (--argc < 1) goto bad;
	131	outformat=str2fmt(*(++argv));
	132	}
	133	else if (strcmp(*argv,"-in") == 0)
	134	{
	135	if (--argc < 1) goto bad;
	136	infile= *(++argv);
	137	}
	138	else if (strcmp(*argv,"-out") == 0)
	139	{
	140	if (--argc < 1) goto bad;
	141	outfile= *(++argv);
	142	}
0b13e9f0	143	#ifndef OPENSSL_NO_ENGINE
5270e702 RL	144	else if (strcmp(*argv,"-engine") == 0)
	145	{
	146	if (--argc < 1) goto bad;
	147	engine= *(++argv);
	148	}
0b13e9f0	149	#endif
d02b48c6 RE	150	else if (strcmp(*argv,"-check") == 0)
	151	check=1;
	152	else if (strcmp(*argv,"-text") == 0)
	153	text=1;
	154	else if (strcmp(*argv,"-C") == 0)
	155	C=1;
	156	else if (strcmp(*argv,"-noout") == 0)
	157	noout=1;
	158	else
	159	{
	160	BIO_printf(bio_err,"unknown option %s\n",*argv);
	161	badops=1;
	162	break;
	163	}
	164	argc--;
	165	argv++;
	166	}
	167
	168	if (badops)
	169	{
	170	bad:
	171	BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
	172	BIO_printf(bio_err,"where options are\n");
ef7eaa4c DSH	173	BIO_printf(bio_err," -inform arg input format - one of DER PEM\n");
ef7eaa4c DSH	174	BIO_printf(bio_err," -outform arg output format - one of DER PEM\n");
9fe84296	175	BIO_printf(bio_err," -in arg input file\n");
d02b48c6 RE	176	BIO_printf(bio_err," -out arg output file\n");
d02b48c6 RE	177	BIO_printf(bio_err," -check check the DH parameters\n");
d1f4c83c	178	BIO_printf(bio_err," -text print a text form of the DH parameters\n");
d02b48c6 RE	179	BIO_printf(bio_err," -C Output C code\n");
d02b48c6 RE	180	BIO_printf(bio_err," -noout no output\n");
0b13e9f0	181	#ifndef OPENSSL_NO_ENGINE
5270e702	182	BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n");
0b13e9f0	183	#endif
d02b48c6 RE	184	goto end;
	185	}
	186
	187	ERR_load_crypto_strings();
	188
0b13e9f0	189	#ifndef OPENSSL_NO_ENGINE
e9735943	190	setup_engine(bio_err, engine, 0);
0b13e9f0	191	#endif
5270e702	192
d02b48c6 RE	193	in=BIO_new(BIO_s_file());
	194	out=BIO_new(BIO_s_file());
	195	if ((in == NULL) \|\| (out == NULL))
	196	{
	197	ERR_print_errors(bio_err);
	198	goto end;
	199	}
	200
	201	if (infile == NULL)
	202	BIO_set_fp(in,stdin,BIO_NOCLOSE);
	203	else
	204	{
	205	if (BIO_read_filename(in,infile) <= 0)
	206	{
	207	perror(infile);
	208	goto end;
	209	}
	210	}
	211	if (outfile == NULL)
645749ef	212	{
d02b48c6	213	BIO_set_fp(out,stdout,BIO_NOCLOSE);
bc36ee62	214	#ifdef OPENSSL_SYS_VMS
645749ef RL	215	{
	216	BIO *tmpbio = BIO_new(BIO_f_linebuffer());
	217	out = BIO_push(tmpbio, out);
	218	}
	219	#endif
	220	}
d02b48c6 RE	221	else
	222	{
	223	if (BIO_write_filename(out,outfile) <= 0)
	224	{
	225	perror(outfile);
	226	goto end;
	227	}
	228	}
	229
	230	if (informat == FORMAT_ASN1)
	231	dh=d2i_DHparams_bio(in,NULL);
	232	else if (informat == FORMAT_PEM)
74678cc2	233	dh=PEM_read_bio_DHparams(in,NULL,NULL,NULL);
d02b48c6 RE	234	else
	235	{
	236	BIO_printf(bio_err,"bad input format specified\n");
	237	goto end;
	238	}
	239	if (dh == NULL)
	240	{
	241	BIO_printf(bio_err,"unable to load DH parameters\n");
	242	ERR_print_errors(bio_err);
	243	goto end;
	244	}
	245
	246
	247
	248	if (text)
	249	{
	250	DHparams_print(out,dh);
	251	#ifdef undef
	252	printf("p=");
	253	BN_print(stdout,dh->p);
	254	printf("\ng=");
	255	BN_print(stdout,dh->g);
	256	printf("\n");
	257	if (dh->length != 0)
657e60fa	258	printf("recommended private length=%ld\n",dh->length);
d02b48c6 RE	259	#endif
	260	}
	261
	262	if (check)
	263	{
	264	if (!DH_check(dh,&i))
	265	{
	266	ERR_print_errors(bio_err);
	267	goto end;
	268	}
	269	if (i & DH_CHECK_P_NOT_PRIME)
	270	printf("p value is not prime\n");
41918458 BM	271	if (i & DH_CHECK_P_NOT_SAFE_PRIME)
41918458 BM	272	printf("p value is not a safe prime\n");
d02b48c6 RE	273	if (i & DH_UNABLE_TO_CHECK_GENERATOR)
	274	printf("unable to check the generator value\n");
	275	if (i & DH_NOT_SUITABLE_GENERATOR)
	276	printf("the g value is not a generator\n");
	277	if (i == 0)
	278	printf("DH parameters appear to be ok.\n");
	279	}
	280	if (C)
	281	{
	282	unsigned char *data;
	283	int len,l,bits;
	284
	285	len=BN_num_bytes(dh->p);
	286	bits=BN_num_bits(dh->p);
26a3a48d	287	data=(unsigned char *)OPENSSL_malloc(len);
d02b48c6 RE	288	if (data == NULL)
d02b48c6 RE	289	{
26a3a48d	290	perror("OPENSSL_malloc");
d02b48c6 RE	291	goto end;
	292	}
	293	l=BN_bn2bin(dh->p,data);
	294	printf("static unsigned char dh%d_p[]={",bits);
	295	for (i=0; i<l; i++)
	296	{
	297	if ((i%12) == 0) printf("\n\t");
	298	printf("0x%02X,",data[i]);
	299	}
	300	printf("\n\t};\n");
	301
	302	l=BN_bn2bin(dh->g,data);
	303	printf("static unsigned char dh%d_g[]={",bits);
	304	for (i=0; i<l; i++)
	305	{
	306	if ((i%12) == 0) printf("\n\t");
	307	printf("0x%02X,",data[i]);
	308	}
	309	printf("\n\t};\n\n");
	310
	311	printf("DH *get_dh%d()\n\t{\n",bits);
	312	printf("\tDH *dh;\n\n");
	313	printf("\tif ((dh=DH_new()) == NULL) return(NULL);\n");
	314	printf("\tdh->p=BN_bin2bn(dh%d_p,sizeof(dh%d_p),NULL);\n",
	315	bits,bits);
	316	printf("\tdh->g=BN_bin2bn(dh%d_g,sizeof(dh%d_g),NULL);\n",
	317	bits,bits);
	318	printf("\tif ((dh->p == NULL) \|\| (dh->g == NULL))\n");
	319	printf("\t\treturn(NULL);\n");
	320	printf("\treturn(dh);\n\t}\n");
26a3a48d	321	OPENSSL_free(data);
d02b48c6 RE	322	}
	323
	324
	325	if (!noout)
	326	{
	327	if (outformat == FORMAT_ASN1)
	328	i=i2d_DHparams_bio(out,dh);
	329	else if (outformat == FORMAT_PEM)
	330	i=PEM_write_bio_DHparams(out,dh);
	331	else {
	332	BIO_printf(bio_err,"bad output format specified for outfile\n");
	333	goto end;
	334	}
	335	if (!i)
	336	{
657e60fa	337	BIO_printf(bio_err,"unable to write DH parameters\n");
d02b48c6 RE	338	ERR_print_errors(bio_err);
	339	goto end;
	340	}
	341	}
	342	ret=0;
	343	end:
	344	if (in != NULL) BIO_free(in);
645749ef	345	if (out != NULL) BIO_free_all(out);
d02b48c6	346	if (dh != NULL) DH_free(dh);
c04f8cf4	347	apps_shutdown();
1c3e4a36	348	OPENSSL_EXIT(ret);
d02b48c6	349	}
7134507d DSH	350	#else /* !OPENSSL_NO_DH */
	351
	352	# if PEDANTIC
	353	static void *dummy=&dummy;
	354	# endif
	355
f5d7a031	356	#endif