Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/openssl/genpkey.c	Lines:	0	203	0.0 %
Date:	2016-12-06	Branches:	0	126	0.0 %


/* $OpenBSD: genpkey.c,v 1.8 2015/10/17 15:00:11 doug Exp $ */
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
 * project 2006
 */
/* ====================================================================
 * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
 *
 * 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 above 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 acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED 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 OpenSSL PROJECT OR
 * ITS 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.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

#include <stdio.h>
#include <string.h>

#include "apps.h"

#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/pem.h>

static int
init_keygen_file(BIO * err, EVP_PKEY_CTX ** pctx, const char *file);
static int genpkey_cb(EVP_PKEY_CTX * ctx);

int
genpkey_main(int argc, char **argv)
{
	char **args, *outfile = NULL;
	char *passarg = NULL;
	BIO *in = NULL, *out = NULL;
	const EVP_CIPHER *cipher = NULL;
	int outformat;
	int text = 0;
	EVP_PKEY *pkey = NULL;
	EVP_PKEY_CTX *ctx = NULL;
	char *pass = NULL;
	int badarg = 0;
	int ret = 1, rv;

	int do_param = 0;

	if (single_execution) {
		if (pledge("stdio rpath wpath cpath tty", NULL) == -1) {
			perror("pledge");
			exit(1);
		}
	}

	outformat = FORMAT_PEM;

	args = argv + 1;
	while (!badarg && *args && *args[0] == '-') {
		if (!strcmp(*args, "-outform")) {
			if (args[1]) {
				args++;
				outformat = str2fmt(*args);
			} else
				badarg = 1;
		} else if (!strcmp(*args, "-pass")) {
			if (!args[1])
				goto bad;
			passarg = *(++args);
		}
		else if (!strcmp(*args, "-paramfile")) {
			if (!args[1])
				goto bad;
			args++;
			if (do_param == 1)
				goto bad;
			if (!init_keygen_file(bio_err, &ctx, *args))
				goto end;
		} else if (!strcmp(*args, "-out")) {
			if (args[1]) {
				args++;
				outfile = *args;
			} else
				badarg = 1;
		} else if (strcmp(*args, "-algorithm") == 0) {
			if (!args[1])
				goto bad;
			if (!init_gen_str(bio_err, &ctx, *(++args), do_param))
				goto end;
		} else if (strcmp(*args, "-pkeyopt") == 0) {
			if (!args[1])
				goto bad;
			if (!ctx) {
				BIO_puts(bio_err, "No keytype specified\n");
				goto bad;
			} else if (pkey_ctrl_string(ctx, *(++args)) <= 0) {
				BIO_puts(bio_err, "parameter setting error\n");
				ERR_print_errors(bio_err);
				goto end;
			}
		} else if (strcmp(*args, "-genparam") == 0) {
			if (ctx)
				goto bad;
			do_param = 1;
		} else if (strcmp(*args, "-text") == 0)
			text = 1;
		else {
			cipher = EVP_get_cipherbyname(*args + 1);
			if (!cipher) {
				BIO_printf(bio_err, "Unknown cipher %s\n",
				    *args + 1);
				badarg = 1;
			}
			if (do_param == 1)
				badarg = 1;
		}
		args++;
	}

	if (!ctx)
		badarg = 1;

	if (badarg) {
bad:
		BIO_printf(bio_err, "Usage: genpkey [options]\n");
		BIO_printf(bio_err, "where options may be\n");
		BIO_printf(bio_err, "-out file          output file\n");
		BIO_printf(bio_err, "-outform X         output format (DER or PEM)\n");
		BIO_printf(bio_err, "-pass arg          output file pass phrase source\n");
		BIO_printf(bio_err, "-<cipher>          use cipher <cipher> to encrypt the key\n");
		BIO_printf(bio_err, "-paramfile file    parameters file\n");
		BIO_printf(bio_err, "-algorithm alg     the public key algorithm\n");
		BIO_printf(bio_err, "-pkeyopt opt:value set the public key algorithm option <opt>\n"
		    "                   to value <value>\n");
		BIO_printf(bio_err, "-genparam          generate parameters, not key\n");
		BIO_printf(bio_err, "-text              print the in text\n");
		BIO_printf(bio_err, "NB: options order may be important!  See the manual page.\n");
		goto end;
	}
	if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
		BIO_puts(bio_err, "Error getting password\n");
		goto end;
	}
	if (outfile) {
		if (!(out = BIO_new_file(outfile, "wb"))) {
			BIO_printf(bio_err,
			    "Can't open output file %s\n", outfile);
			goto end;
		}
	} else {
		out = BIO_new_fp(stdout, BIO_NOCLOSE);
	}

	EVP_PKEY_CTX_set_cb(ctx, genpkey_cb);
	EVP_PKEY_CTX_set_app_data(ctx, bio_err);

	if (do_param) {
		if (EVP_PKEY_paramgen(ctx, &pkey) <= 0) {
			BIO_puts(bio_err, "Error generating parameters\n");
			ERR_print_errors(bio_err);
			goto end;
		}
	} else {
		if (EVP_PKEY_keygen(ctx, &pkey) <= 0) {
			BIO_puts(bio_err, "Error generating key\n");
			ERR_print_errors(bio_err);
			goto end;
		}
	}

	if (do_param)
		rv = PEM_write_bio_Parameters(out, pkey);
	else if (outformat == FORMAT_PEM)
		rv = PEM_write_bio_PrivateKey(out, pkey, cipher, NULL, 0,
		    NULL, pass);
	else if (outformat == FORMAT_ASN1)
		rv = i2d_PrivateKey_bio(out, pkey);
	else {
		BIO_printf(bio_err, "Bad format specified for key\n");
		goto end;
	}

	if (rv <= 0) {
		BIO_puts(bio_err, "Error writing key\n");
		ERR_print_errors(bio_err);
	}
	if (text) {
		if (do_param)
			rv = EVP_PKEY_print_params(out, pkey, 0, NULL);
		else
			rv = EVP_PKEY_print_private(out, pkey, 0, NULL);

		if (rv <= 0) {
			BIO_puts(bio_err, "Error printing key\n");
			ERR_print_errors(bio_err);
		}
	}
	ret = 0;

end:
	if (pkey)
		EVP_PKEY_free(pkey);
	if (ctx)
		EVP_PKEY_CTX_free(ctx);
	if (out)
		BIO_free_all(out);
	BIO_free(in);
	free(pass);

	return ret;
}

static int
init_keygen_file(BIO * err, EVP_PKEY_CTX ** pctx,
    const char *file)
{
	BIO *pbio;
	EVP_PKEY *pkey = NULL;
	EVP_PKEY_CTX *ctx = NULL;
	if (*pctx) {
		BIO_puts(err, "Parameters already set!\n");
		return 0;
	}
	pbio = BIO_new_file(file, "r");
	if (!pbio) {
		BIO_printf(err, "Can't open parameter file %s\n", file);
		return 0;
	}
	pkey = PEM_read_bio_Parameters(pbio, NULL);
	BIO_free(pbio);

	if (!pkey) {
		BIO_printf(bio_err, "Error reading parameter file %s\n", file);
		return 0;
	}
	ctx = EVP_PKEY_CTX_new(pkey, NULL);
	if (!ctx)
		goto err;
	if (EVP_PKEY_keygen_init(ctx) <= 0)
		goto err;
	EVP_PKEY_free(pkey);
	*pctx = ctx;
	return 1;

err:
	BIO_puts(err, "Error initializing context\n");
	ERR_print_errors(err);
	if (ctx)
		EVP_PKEY_CTX_free(ctx);
	if (pkey)
		EVP_PKEY_free(pkey);
	return 0;

}

int
init_gen_str(BIO * err, EVP_PKEY_CTX ** pctx,
    const char *algname, int do_param)
{
	EVP_PKEY_CTX *ctx = NULL;
	const EVP_PKEY_ASN1_METHOD *ameth;
	int pkey_id;

	if (*pctx) {
		BIO_puts(err, "Algorithm already set!\n");
		return 0;
	}
	ameth = EVP_PKEY_asn1_find_str(NULL, algname, -1);

	if (!ameth) {
		BIO_printf(bio_err, "Algorithm %s not found\n", algname);
		return 0;
	}
	ERR_clear_error();

	EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth);
	ctx = EVP_PKEY_CTX_new_id(pkey_id, NULL);

	if (!ctx)
		goto err;
	if (do_param) {
		if (EVP_PKEY_paramgen_init(ctx) <= 0)
			goto err;
	} else {
		if (EVP_PKEY_keygen_init(ctx) <= 0)
			goto err;
	}

	*pctx = ctx;
	return 1;

err:
	BIO_printf(err, "Error initializing %s context\n", algname);
	ERR_print_errors(err);
	if (ctx)
		EVP_PKEY_CTX_free(ctx);
	return 0;

}

static int
genpkey_cb(EVP_PKEY_CTX * ctx)
{
	char c = '*';
	BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
	int p;
	p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
	if (p == 0)
		c = '.';
	if (p == 1)
		c = '+';
	if (p == 2)
		c = '*';
	if (p == 3)
		c = '\n';
	BIO_write(b, &c, 1);
	(void) BIO_flush(b);
	return 1;
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: genpkey.c,v 1.8 2015/10/17 15:00:11 doug Exp $ */
2			/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3			* project 2006
4			*/
5			/* ====================================================================
6			* Copyright (c) 2006 The OpenSSL Project. All rights reserved.
7			*
8			* Redistribution and use in source and binary forms, with or without
9			* modification, are permitted provided that the following conditions
10			* are met:
11			*
12			* 1. Redistributions of source code must retain the above copyright
13			* notice, this list of conditions and the following disclaimer.
14			*
15			* 2. Redistributions in binary form must reproduce the above copyright
16			* notice, this list of conditions and the following disclaimer in
17			* the documentation and/or other materials provided with the
18			* distribution.
19			*
20			* 3. All advertising materials mentioning features or use of this
21			* software must display the following acknowledgment:
22			* "This product includes software developed by the OpenSSL Project
23			* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24			*
25			* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26			* endorse or promote products derived from this software without
27			* prior written permission. For written permission, please contact
28			* licensing@OpenSSL.org.
29			*
30			* 5. Products derived from this software may not be called "OpenSSL"
31			* nor may "OpenSSL" appear in their names without prior written
32			* permission of the OpenSSL Project.
33			*
34			* 6. Redistributions of any form whatsoever must retain the following
35			* acknowledgment:
36			* "This product includes software developed by the OpenSSL Project
37			* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38			*
39			* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40			* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42			* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43			* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44			* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45			* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46			* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48			* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49			* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50			* OF THE POSSIBILITY OF SUCH DAMAGE.
51			* ====================================================================
52			*
53			* This product includes cryptographic software written by Eric Young
54			* (eay@cryptsoft.com). This product includes software written by Tim
55			* Hudson (tjh@cryptsoft.com).
56			*
57			*/
58
59			#include <stdio.h>
60			#include <string.h>
61
62			#include "apps.h"
63
64			#include <openssl/err.h>
65			#include <openssl/evp.h>
66			#include <openssl/pem.h>
67
68			static int
69			init_keygen_file(BIO * err, EVP_PKEY_CTX ** pctx, const char *file);
70			static int genpkey_cb(EVP_PKEY_CTX * ctx);
71
72			int
73			genpkey_main(int argc, char **argv)
74			{
75			char *args, outfile = NULL;
76			char *passarg = NULL;
77			BIO in = NULL, out = NULL;
78			const EVP_CIPHER *cipher = NULL;
79			int outformat;
80			int text = 0;
81			EVP_PKEY *pkey = NULL;
82			EVP_PKEY_CTX *ctx = NULL;
83			char *pass = NULL;
84			int badarg = 0;
85			int ret = 1, rv;
86
87			int do_param = 0;
88
89			if (single_execution) {
90			if (pledge("stdio rpath wpath cpath tty", NULL) == -1) {
91			perror("pledge");
92			exit(1);
93			}
94			}
95
96			outformat = FORMAT_PEM;
97
98			args = argv + 1;
99			while (!badarg && args && args[0] == '-') {
100			if (!strcmp(*args, "-outform")) {
101			if (args[1]) {
102			args++;
103			outformat = str2fmt(*args);
104			} else
105			badarg = 1;
106			} else if (!strcmp(*args, "-pass")) {
107			if (!args[1])
108			goto bad;
109			passarg = *(++args);
110			}
111			else if (!strcmp(*args, "-paramfile")) {
112			if (!args[1])
113			goto bad;
114			args++;
115			if (do_param == 1)
116			goto bad;
117			if (!init_keygen_file(bio_err, &ctx, *args))
118			goto end;
119			} else if (!strcmp(*args, "-out")) {
120			if (args[1]) {
121			args++;
122			outfile = *args;
123			} else
124			badarg = 1;
125			} else if (strcmp(*args, "-algorithm") == 0) {
126			if (!args[1])
127			goto bad;
128			if (!init_gen_str(bio_err, &ctx, *(++args), do_param))
129			goto end;
130			} else if (strcmp(*args, "-pkeyopt") == 0) {
131			if (!args[1])
132			goto bad;
133			if (!ctx) {
134			BIO_puts(bio_err, "No keytype specified\n");
135			goto bad;
136			} else if (pkey_ctrl_string(ctx, *(++args)) <= 0) {
137			BIO_puts(bio_err, "parameter setting error\n");
138			ERR_print_errors(bio_err);
139			goto end;
140			}
141			} else if (strcmp(*args, "-genparam") == 0) {
142			if (ctx)
143			goto bad;
144			do_param = 1;
145			} else if (strcmp(*args, "-text") == 0)
146			text = 1;
147			else {
148			cipher = EVP_get_cipherbyname(*args + 1);
149			if (!cipher) {
150			BIO_printf(bio_err, "Unknown cipher %s\n",
151			*args + 1);
152			badarg = 1;
153			}
154			if (do_param == 1)
155			badarg = 1;
156			}
157			args++;
158			}
159
160			if (!ctx)
161			badarg = 1;
162
163			if (badarg) {
164			bad:
165			BIO_printf(bio_err, "Usage: genpkey [options]\n");
166			BIO_printf(bio_err, "where options may be\n");
167			BIO_printf(bio_err, "-out file output file\n");
168			BIO_printf(bio_err, "-outform X output format (DER or PEM)\n");
169			BIO_printf(bio_err, "-pass arg output file pass phrase source\n");
170			BIO_printf(bio_err, "-<cipher> use cipher <cipher> to encrypt the key\n");
171			BIO_printf(bio_err, "-paramfile file parameters file\n");
172			BIO_printf(bio_err, "-algorithm alg the public key algorithm\n");
173			BIO_printf(bio_err, "-pkeyopt opt:value set the public key algorithm option <opt>\n"
174			" to value <value>\n");
175			BIO_printf(bio_err, "-genparam generate parameters, not key\n");
176			BIO_printf(bio_err, "-text print the in text\n");
177			BIO_printf(bio_err, "NB: options order may be important! See the manual page.\n");
178			goto end;
179			}
180			if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
181			BIO_puts(bio_err, "Error getting password\n");
182			goto end;
183			}
184			if (outfile) {
185			if (!(out = BIO_new_file(outfile, "wb"))) {
186			BIO_printf(bio_err,
187			"Can't open output file %s\n", outfile);
188			goto end;
189			}
190			} else {
191			out = BIO_new_fp(stdout, BIO_NOCLOSE);
192			}
193
194			EVP_PKEY_CTX_set_cb(ctx, genpkey_cb);
195			EVP_PKEY_CTX_set_app_data(ctx, bio_err);
196
197			if (do_param) {
198			if (EVP_PKEY_paramgen(ctx, &pkey) <= 0) {
199			BIO_puts(bio_err, "Error generating parameters\n");
200			ERR_print_errors(bio_err);
201			goto end;
202			}
203			} else {
204			if (EVP_PKEY_keygen(ctx, &pkey) <= 0) {
205			BIO_puts(bio_err, "Error generating key\n");
206			ERR_print_errors(bio_err);
207			goto end;
208			}
209			}
210
211			if (do_param)
212			rv = PEM_write_bio_Parameters(out, pkey);
213			else if (outformat == FORMAT_PEM)
214			rv = PEM_write_bio_PrivateKey(out, pkey, cipher, NULL, 0,
215			NULL, pass);
216			else if (outformat == FORMAT_ASN1)
217			rv = i2d_PrivateKey_bio(out, pkey);
218			else {
219			BIO_printf(bio_err, "Bad format specified for key\n");
220			goto end;
221			}
222
223			if (rv <= 0) {
224			BIO_puts(bio_err, "Error writing key\n");
225			ERR_print_errors(bio_err);
226			}
227			if (text) {
228			if (do_param)
229			rv = EVP_PKEY_print_params(out, pkey, 0, NULL);
230			else
231			rv = EVP_PKEY_print_private(out, pkey, 0, NULL);
232
233			if (rv <= 0) {
234			BIO_puts(bio_err, "Error printing key\n");
235			ERR_print_errors(bio_err);
236			}
237			}
238			ret = 0;
239
240			end:
241			if (pkey)
242			EVP_PKEY_free(pkey);
243			if (ctx)
244			EVP_PKEY_CTX_free(ctx);
245			if (out)
246			BIO_free_all(out);
247			BIO_free(in);
248			free(pass);
249
250			return ret;
251			}
252
253			static int
254			init_keygen_file(BIO * err, EVP_PKEY_CTX ** pctx,
255			const char *file)
256			{
257			BIO *pbio;
258			EVP_PKEY *pkey = NULL;
259			EVP_PKEY_CTX *ctx = NULL;
260			if (*pctx) {
261			BIO_puts(err, "Parameters already set!\n");
262			return 0;
263			}
264			pbio = BIO_new_file(file, "r");
265			if (!pbio) {
266			BIO_printf(err, "Can't open parameter file %s\n", file);
267			return 0;
268			}
269			pkey = PEM_read_bio_Parameters(pbio, NULL);
270			BIO_free(pbio);
271
272			if (!pkey) {
273			BIO_printf(bio_err, "Error reading parameter file %s\n", file);
274			return 0;
275			}
276			ctx = EVP_PKEY_CTX_new(pkey, NULL);
277			if (!ctx)
278			goto err;
279			if (EVP_PKEY_keygen_init(ctx) <= 0)
280			goto err;
281			EVP_PKEY_free(pkey);
282			*pctx = ctx;
283			return 1;
284
285			err:
286			BIO_puts(err, "Error initializing context\n");
287			ERR_print_errors(err);
288			if (ctx)
289			EVP_PKEY_CTX_free(ctx);
290			if (pkey)
291			EVP_PKEY_free(pkey);
292			return 0;
293
294			}
295
296			int
297			init_gen_str(BIO * err, EVP_PKEY_CTX ** pctx,
298			const char *algname, int do_param)
299			{
300			EVP_PKEY_CTX *ctx = NULL;
301			const EVP_PKEY_ASN1_METHOD *ameth;
302			int pkey_id;
303
304			if (*pctx) {
305			BIO_puts(err, "Algorithm already set!\n");
306			return 0;
307			}
308			ameth = EVP_PKEY_asn1_find_str(NULL, algname, -1);
309
310			if (!ameth) {
311			BIO_printf(bio_err, "Algorithm %s not found\n", algname);
312			return 0;
313			}
314			ERR_clear_error();
315
316			EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth);
317			ctx = EVP_PKEY_CTX_new_id(pkey_id, NULL);
318
319			if (!ctx)
320			goto err;
321			if (do_param) {
322			if (EVP_PKEY_paramgen_init(ctx) <= 0)
323			goto err;
324			} else {
325			if (EVP_PKEY_keygen_init(ctx) <= 0)
326			goto err;
327			}
328
329			*pctx = ctx;
330			return 1;
331
332			err:
333			BIO_printf(err, "Error initializing %s context\n", algname);
334			ERR_print_errors(err);
335			if (ctx)
336			EVP_PKEY_CTX_free(ctx);
337			return 0;
338
339			}
340
341			static int
342			genpkey_cb(EVP_PKEY_CTX * ctx)
343			{
344			char c = '*';
345			BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
346			int p;
347			p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
348			if (p == 0)
349			c = '.';
350			if (p == 1)
351			c = '+';
352			if (p == 2)
353			c = '*';
354			if (p == 3)
355			c = '\n';
356			BIO_write(b, &c, 1);
357			(void) BIO_flush(b);
358			return 1;
359			}