apps/verify.c - platform/external/openssl.git - Git at Google

 /* apps/verify.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/x509v3.h>
 #include <openssl/pem.h>

 #undef PROG
 #define PROG	verify_main

 static int MS_CALLBACK cb(int ok, X509_STORE_CTX *ctx);
 static int check(X509_STORE *ctx, char *file,
 		STACK_OF(X509) *uchain, STACK_OF(X509) *tchain,
 		STACK_OF(X509_CRL) *crls, ENGINE *e);
 static int v_verbose=0, vflags = 0;

 int MAIN(int, char **);

 int MAIN(int argc, char **argv)
 	{
 	ENGINE *e = NULL;
 	int i,ret=1, badarg = 0;
 	char *CApath=NULL,*CAfile=NULL;
 	char *untfile = NULL, *trustfile = NULL, *crlfile = NULL;
 	STACK_OF(X509) *untrusted = NULL, *trusted = NULL;
 	STACK_OF(X509_CRL) *crls = NULL;
 	X509_STORE *cert_ctx=NULL;
 	X509_LOOKUP *lookup=NULL;
 	X509_VERIFY_PARAM *vpm = NULL;
 #ifndef OPENSSL_NO_ENGINE
 	char *engine=NULL;
 #endif

 	cert_ctx=X509_STORE_new();
 	if (cert_ctx == NULL) goto end;
 	X509_STORE_set_verify_cb(cert_ctx,cb);

 	ERR_load_crypto_strings();

 	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;

 	argc--;
 	argv++;
 	for (;;)
 		{
 		if (argc >= 1)
 			{
 			if (strcmp(*argv,"-CApath") == 0)
 				{
 				if (argc-- < 1) goto end;
 				CApath= *(++argv);
 				}
 			else if (strcmp(*argv,"-CAfile") == 0)
 				{
 				if (argc-- < 1) goto end;
 				CAfile= *(++argv);
 				}
 			else if (args_verify(&argv, &argc, &badarg, bio_err,
 									&vpm))
 				{
 				if (badarg)
 					goto end;
 				continue;
 				}
 			else if (strcmp(*argv,"-untrusted") == 0)
 				{
 				if (argc-- < 1) goto end;
 				untfile= *(++argv);
 				}
 			else if (strcmp(*argv,"-trusted") == 0)
 				{
 				if (argc-- < 1) goto end;
 				trustfile= *(++argv);
 				}
 			else if (strcmp(*argv,"-CRLfile") == 0)
 				{
 				if (argc-- < 1) goto end;
 				crlfile= *(++argv);
 				}
 #ifndef OPENSSL_NO_ENGINE
 			else if (strcmp(*argv,"-engine") == 0)
 				{
 				if (--argc < 1) goto end;
 				engine= *(++argv);
 				}
 #endif
 			else if (strcmp(*argv,"-help") == 0)
 				goto end;
 			else if (strcmp(*argv,"-verbose") == 0)
 				v_verbose=1;
 			else if (argv[0][0] == '-')
 				goto end;
 			else
 				break;
 			argc--;
 			argv++;
 			}
 		else
 			break;
 		}

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

 	if (vpm)
 		X509_STORE_set1_param(cert_ctx, vpm);

 	lookup=X509_STORE_add_lookup(cert_ctx,X509_LOOKUP_file());
 	if (lookup == NULL) abort();
 	if (CAfile) {
 		i=X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM);
 		if(!i) {
 			BIO_printf(bio_err, "Error loading file %s\n", CAfile);
 			ERR_print_errors(bio_err);
 			goto end;
 		}
 	} else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);

 	lookup=X509_STORE_add_lookup(cert_ctx,X509_LOOKUP_hash_dir());
 	if (lookup == NULL) abort();
 	if (CApath) {
 		i=X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM);
 		if(!i) {
 			BIO_printf(bio_err, "Error loading directory %s\n", CApath);
 			ERR_print_errors(bio_err);
 			goto end;
 		}
 	} else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);

 	ERR_clear_error();

 	if(untfile)
 		{
 		untrusted = load_certs(bio_err, untfile, FORMAT_PEM,
 					NULL, e, "untrusted certificates");
 		if(!untrusted)
 			goto end;
 		}

 	if(trustfile)
 		{
 		trusted = load_certs(bio_err, trustfile, FORMAT_PEM,
 					NULL, e, "trusted certificates");
 		if(!trusted)
 			goto end;
 		}

 	if(crlfile)
 		{
 		crls = load_crls(bio_err, crlfile, FORMAT_PEM,
 					NULL, e, "other CRLs");
 		if(!crls)
 			goto end;
 		}

 	if (argc < 1) check(cert_ctx, NULL, untrusted, trusted, crls, e);
 	else
 		for (i=0; i<argc; i++)
 			check(cert_ctx,argv[i], untrusted, trusted, crls, e);
 	ret=0;
 end:
 	if (ret == 1) {
 		BIO_printf(bio_err,"usage: verify [-verbose] [-CApath path] [-CAfile file] [-purpose purpose] [-crl_check]");
 		BIO_printf(bio_err," [-attime timestamp]");
 #ifndef OPENSSL_NO_ENGINE
 		BIO_printf(bio_err," [-engine e]");
 #endif
 		BIO_printf(bio_err," cert1 cert2 ...\n");
 		BIO_printf(bio_err,"recognized usages:\n");
 		for(i = 0; i < X509_PURPOSE_get_count(); i++) {
 			X509_PURPOSE *ptmp;
 			ptmp = X509_PURPOSE_get0(i);
 			BIO_printf(bio_err, "\t%-10s\t%s\n", X509_PURPOSE_get0_sname(ptmp),
 								X509_PURPOSE_get0_name(ptmp));
 		}
 	}
 	if (vpm) X509_VERIFY_PARAM_free(vpm);
 	if (cert_ctx != NULL) X509_STORE_free(cert_ctx);
 	sk_X509_pop_free(untrusted, X509_free);
 	sk_X509_pop_free(trusted, X509_free);
 	sk_X509_CRL_pop_free(crls, X509_CRL_free);
 	apps_shutdown();
 	OPENSSL_EXIT(ret);
 	}

 static int check(X509_STORE *ctx, char *file,
 		STACK_OF(X509) *uchain, STACK_OF(X509) *tchain,
 		STACK_OF(X509_CRL) *crls, ENGINE *e)
 	{
 	X509 *x=NULL;
 	int i=0,ret=0;
 	X509_STORE_CTX *csc;

 	x = load_cert(bio_err, file, FORMAT_PEM, NULL, e, "certificate file");
 	if (x == NULL)
 		goto end;
 	fprintf(stdout,"%s: ",(file == NULL)?"stdin":file);

 	csc = X509_STORE_CTX_new();
 	if (csc == NULL)
 		{
 		ERR_print_errors(bio_err);
 		goto end;
 		}
 	X509_STORE_set_flags(ctx, vflags);
 	if(!X509_STORE_CTX_init(csc,ctx,x,uchain))
 		{
 		ERR_print_errors(bio_err);
 		goto end;
 		}
 	if(tchain) X509_STORE_CTX_trusted_stack(csc, tchain);
 	if (crls)
 		X509_STORE_CTX_set0_crls(csc, crls);
 	i=X509_verify_cert(csc);
 	X509_STORE_CTX_free(csc);

 	ret=0;
 end:
 	if (i > 0)
 		{
 		fprintf(stdout,"OK\n");
 		ret=1;
 		}
 	else
 		ERR_print_errors(bio_err);
 	if (x != NULL) X509_free(x);

 	return(ret);
 	}

 static int MS_CALLBACK cb(int ok, X509_STORE_CTX *ctx)
 	{
 	int cert_error = X509_STORE_CTX_get_error(ctx);
 	X509 *current_cert = X509_STORE_CTX_get_current_cert(ctx);

 	if (!ok)
 		{
 		if (current_cert)
 			{
 			X509_NAME_print_ex_fp(stdout,
 				X509_get_subject_name(current_cert),
 				0, XN_FLAG_ONELINE);
 			printf("\n");
 			}
 		printf("%serror %d at %d depth lookup:%s\n",
 			X509_STORE_CTX_get0_parent_ctx(ctx) ? "[CRL path]" : "",
 			cert_error,
 			X509_STORE_CTX_get_error_depth(ctx),
 			X509_verify_cert_error_string(cert_error));
 		switch(cert_error)
 			{
 			case X509_V_ERR_NO_EXPLICIT_POLICY:
 				policies_print(NULL, ctx);
 			case X509_V_ERR_CERT_HAS_EXPIRED:

 			/* since we are just checking the certificates, it is
 			 * ok if they are self signed. But we should still warn
 			 * the user.
 			 */

 			case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
 			/* Continue after extension errors too */
 			case X509_V_ERR_INVALID_CA:
 			case X509_V_ERR_INVALID_NON_CA:
 			case X509_V_ERR_PATH_LENGTH_EXCEEDED:
 			case X509_V_ERR_INVALID_PURPOSE:
 			case X509_V_ERR_CRL_HAS_EXPIRED:
 			case X509_V_ERR_CRL_NOT_YET_VALID:
 			case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION:
 			ok = 1;

 			}

 		return ok;

 		}
 	if (cert_error == X509_V_OK && ok == 2)
 		policies_print(NULL, ctx);
 	if (!v_verbose)
 		ERR_clear_error();
 	return(ok);
 	}
	/* apps/verify.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/x509v3.h>
	#include <openssl/pem.h>

	#undef PROG
	#define PROG verify_main

	static int MS_CALLBACK cb(int ok, X509_STORE_CTX *ctx);
	static int check(X509_STORE ctx, char file,
	STACK_OF(X509) uchain, STACK_OF(X509) tchain,
	STACK_OF(X509_CRL) crls, ENGINE e);
	static int v_verbose=0, vflags = 0;

	int MAIN(int, char **);

	int MAIN(int argc, char **argv)
	{
	ENGINE *e = NULL;
	int i,ret=1, badarg = 0;
	char CApath=NULL,CAfile=NULL;
	char untfile = NULL, trustfile = NULL, *crlfile = NULL;
	STACK_OF(X509) untrusted = NULL, trusted = NULL;
	STACK_OF(X509_CRL) *crls = NULL;
	X509_STORE *cert_ctx=NULL;
	X509_LOOKUP *lookup=NULL;
	X509_VERIFY_PARAM *vpm = NULL;
	#ifndef OPENSSL_NO_ENGINE
	char *engine=NULL;
	#endif

	cert_ctx=X509_STORE_new();
	if (cert_ctx == NULL) goto end;
	X509_STORE_set_verify_cb(cert_ctx,cb);

	ERR_load_crypto_strings();

	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;

	argc--;
	argv++;
	for (;;)
	{
	if (argc >= 1)
	{
	if (strcmp(*argv,"-CApath") == 0)
	{
	if (argc-- < 1) goto end;
	CApath= *(++argv);
	}
	else if (strcmp(*argv,"-CAfile") == 0)
	{
	if (argc-- < 1) goto end;
	CAfile= *(++argv);
	}
	else if (args_verify(&argv, &argc, &badarg, bio_err,
	&vpm))
	{
	if (badarg)
	goto end;
	continue;
	}
	else if (strcmp(*argv,"-untrusted") == 0)
	{
	if (argc-- < 1) goto end;
	untfile= *(++argv);
	}
	else if (strcmp(*argv,"-trusted") == 0)
	{
	if (argc-- < 1) goto end;
	trustfile= *(++argv);
	}
	else if (strcmp(*argv,"-CRLfile") == 0)
	{
	if (argc-- < 1) goto end;
	crlfile= *(++argv);
	}
	#ifndef OPENSSL_NO_ENGINE
	else if (strcmp(*argv,"-engine") == 0)
	{
	if (--argc < 1) goto end;
	engine= *(++argv);
	}
	#endif
	else if (strcmp(*argv,"-help") == 0)
	goto end;
	else if (strcmp(*argv,"-verbose") == 0)
	v_verbose=1;
	else if (argv[0][0] == '-')
	goto end;
	else
	break;
	argc--;
	argv++;
	}
	else
	break;
	}

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

	if (vpm)
	X509_STORE_set1_param(cert_ctx, vpm);

	lookup=X509_STORE_add_lookup(cert_ctx,X509_LOOKUP_file());
	if (lookup == NULL) abort();
	if (CAfile) {
	i=X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM);
	if(!i) {
	BIO_printf(bio_err, "Error loading file %s\n", CAfile);
	ERR_print_errors(bio_err);
	goto end;
	}
	} else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);

	lookup=X509_STORE_add_lookup(cert_ctx,X509_LOOKUP_hash_dir());
	if (lookup == NULL) abort();
	if (CApath) {
	i=X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM);
	if(!i) {
	BIO_printf(bio_err, "Error loading directory %s\n", CApath);
	ERR_print_errors(bio_err);
	goto end;
	}
	} else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);

	ERR_clear_error();

	if(untfile)
	{
	untrusted = load_certs(bio_err, untfile, FORMAT_PEM,
	NULL, e, "untrusted certificates");
	if(!untrusted)
	goto end;
	}

	if(trustfile)
	{
	trusted = load_certs(bio_err, trustfile, FORMAT_PEM,
	NULL, e, "trusted certificates");
	if(!trusted)
	goto end;
	}

	if(crlfile)
	{
	crls = load_crls(bio_err, crlfile, FORMAT_PEM,
	NULL, e, "other CRLs");
	if(!crls)
	goto end;
	}

	if (argc < 1) check(cert_ctx, NULL, untrusted, trusted, crls, e);
	else
	for (i=0; i<argc; i++)
	check(cert_ctx,argv[i], untrusted, trusted, crls, e);
	ret=0;
	end:
	if (ret == 1) {
	BIO_printf(bio_err,"usage: verify [-verbose] [-CApath path] [-CAfile file] [-purpose purpose] [-crl_check]");
	BIO_printf(bio_err," [-attime timestamp]");
	#ifndef OPENSSL_NO_ENGINE
	BIO_printf(bio_err," [-engine e]");
	#endif
	BIO_printf(bio_err," cert1 cert2 ...\n");
	BIO_printf(bio_err,"recognized usages:\n");
	for(i = 0; i < X509_PURPOSE_get_count(); i++) {
	X509_PURPOSE *ptmp;
	ptmp = X509_PURPOSE_get0(i);
	BIO_printf(bio_err, "\t%-10s\t%s\n", X509_PURPOSE_get0_sname(ptmp),
	X509_PURPOSE_get0_name(ptmp));
	}
	}
	if (vpm) X509_VERIFY_PARAM_free(vpm);
	if (cert_ctx != NULL) X509_STORE_free(cert_ctx);
	sk_X509_pop_free(untrusted, X509_free);
	sk_X509_pop_free(trusted, X509_free);
	sk_X509_CRL_pop_free(crls, X509_CRL_free);
	apps_shutdown();
	OPENSSL_EXIT(ret);
	}

	static int check(X509_STORE ctx, char file,
	STACK_OF(X509) uchain, STACK_OF(X509) tchain,
	STACK_OF(X509_CRL) crls, ENGINE e)
	{
	X509 *x=NULL;
	int i=0,ret=0;
	X509_STORE_CTX *csc;

	x = load_cert(bio_err, file, FORMAT_PEM, NULL, e, "certificate file");
	if (x == NULL)
	goto end;
	fprintf(stdout,"%s: ",(file == NULL)?"stdin":file);

	csc = X509_STORE_CTX_new();
	if (csc == NULL)
	{
	ERR_print_errors(bio_err);
	goto end;
	}
	X509_STORE_set_flags(ctx, vflags);
	if(!X509_STORE_CTX_init(csc,ctx,x,uchain))
	{
	ERR_print_errors(bio_err);
	goto end;
	}
	if(tchain) X509_STORE_CTX_trusted_stack(csc, tchain);
	if (crls)
	X509_STORE_CTX_set0_crls(csc, crls);
	i=X509_verify_cert(csc);
	X509_STORE_CTX_free(csc);

	ret=0;
	end:
	if (i > 0)
	{
	fprintf(stdout,"OK\n");
	ret=1;
	}
	else
	ERR_print_errors(bio_err);
	if (x != NULL) X509_free(x);

	return(ret);
	}

	static int MS_CALLBACK cb(int ok, X509_STORE_CTX *ctx)
	{
	int cert_error = X509_STORE_CTX_get_error(ctx);
	X509 *current_cert = X509_STORE_CTX_get_current_cert(ctx);

	if (!ok)
	{
	if (current_cert)
	{
	X509_NAME_print_ex_fp(stdout,
	X509_get_subject_name(current_cert),
	0, XN_FLAG_ONELINE);
	printf("\n");
	}
	printf("%serror %d at %d depth lookup:%s\n",
	X509_STORE_CTX_get0_parent_ctx(ctx) ? "[CRL path]" : "",
	cert_error,
	X509_STORE_CTX_get_error_depth(ctx),
	X509_verify_cert_error_string(cert_error));
	switch(cert_error)
	{
	case X509_V_ERR_NO_EXPLICIT_POLICY:
	policies_print(NULL, ctx);
	case X509_V_ERR_CERT_HAS_EXPIRED:

	/* since we are just checking the certificates, it is
	* ok if they are self signed. But we should still warn
	* the user.
	*/

	case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
	/* Continue after extension errors too */
	case X509_V_ERR_INVALID_CA:
	case X509_V_ERR_INVALID_NON_CA:
	case X509_V_ERR_PATH_LENGTH_EXCEEDED:
	case X509_V_ERR_INVALID_PURPOSE:
	case X509_V_ERR_CRL_HAS_EXPIRED:
	case X509_V_ERR_CRL_NOT_YET_VALID:
	case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION:
	ok = 1;

	}

	return ok;

	}
	if (cert_error == X509_V_OK && ok == 2)
	policies_print(NULL, ctx);
	if (!v_verbose)
	ERR_clear_error();
	return(ok);
	}