/* apps/apps.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.]

  */

 /* ====================================================================

  * Copyright (c) 1998-2001 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

  *    openssl-core@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 <stdlib.h>

 #include <string.h>

 #include <sys/types.h>

 #include <sys/stat.h>

 #include <ctype.h>

 #include <openssl/err.h>

 #include <openssl/x509.h>

 #include <openssl/x509v3.h>

 #include <openssl/pem.h>

 #include <openssl/pkcs12.h>

 #include <openssl/ui.h>

 #include <openssl/safestack.h>

 #ifndef OPENSSL_NO_ENGINE

 #include <openssl/engine.h>

 #endif

 #ifndef OPENSSL_NO_RSA

 #include <openssl/rsa.h>

 #endif

 #include <openssl/bn.h>

 #define NON_MAIN

 #include "apps.h"

 #undef NON_MAIN

 typedef struct {

 	const char *name;

 	unsigned long flag;

 	unsigned long mask;

 } NAME_EX_TBL;

 static UI_METHOD *ui_method = NULL;

 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl);

 static int set_multi_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl);

 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)

 /* Looks like this stuff is worth moving into separate function */

 static EVP_PKEY *

 load_netscape_key(BIO *err, BIO *key, const char *file,

 		const char *key_descrip, int format);

 #endif

 int app_init(long mesgwin);

 #ifdef undef /* never finished - probably never will be :-) */

 int args_from_file(char *file, int *argc, char **argv[])

 	{

 	FILE *fp;

 	int num,i;

 	unsigned int len;

 	static char *buf=NULL;

 	static char **arg=NULL;

 	char *p;

 	struct stat stbuf;

 	if (stat(file,&stbuf) < 0) return(0);

 	fp=fopen(file,"r");

 	if (fp == NULL)

 		return(0);

 	*argc=0;

 	*argv=NULL;

 	len=(unsigned int)stbuf.st_size;

 	if (buf != NULL) OPENSSL_free(buf);

 	buf=(char *)OPENSSL_malloc(len+1);

 	if (buf == NULL) return(0);

 	len=fread(buf,1,len,fp);

 	if (len <= 1) return(0);

 	buf[len]='\0';

 	i=0;

 	for (p=buf; *p; p++)

 		if (*p == '\n') i++;

 	if (arg != NULL) OPENSSL_free(arg);

 	arg=(char **)OPENSSL_malloc(sizeof(char *)*(i*2));

 	*argv=arg;

 	num=0;

 	p=buf;

 	for (;;)

 		{

 		if (!*p) break;

 		if (*p == '#') /* comment line */

 			{

 			while (*p && (*p != '\n')) p++;

 			continue;

 			}

 		/* else we have a line */

 		*(arg++)=p;

 		num++;

 		while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n')))

 			p++;

 		if (!*p) break;

 		if (*p == '\n')

 			{

 			*(p++)='\0';

 			continue;

 			}

 		/* else it is a tab or space */

 		p++;

 		while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))

 			p++;

 		if (!*p) break;

 		if (*p == '\n')

 			{

 			p++;

 			continue;

 			}

 		*(arg++)=p++;

 		num++;

 		while (*p && (*p != '\n')) p++;

 		if (!*p) break;

 		/* else *p == '\n' */

 		*(p++)='\0';

 		}

 	*argc=num;

 	return(1);

 	}

 #endif

 int str2fmt(char *s)

 	{

 	if 	((*s == 'D') || (*s == 'd'))

 		return(FORMAT_ASN1);

 	else if ((*s == 'T') || (*s == 't'))

 		return(FORMAT_TEXT);

 	else if ((*s == 'P') || (*s == 'p'))

 		return(FORMAT_PEM);

 	else if ((*s == 'N') || (*s == 'n'))

 		return(FORMAT_NETSCAPE);

 	else if ((*s == 'S') || (*s == 's'))

 		return(FORMAT_SMIME);

 	else if ((*s == '1')

 		|| (strcmp(s,"PKCS12") == 0) || (strcmp(s,"pkcs12") == 0)

 		|| (strcmp(s,"P12") == 0) || (strcmp(s,"p12") == 0))

 		return(FORMAT_PKCS12);

 	else if ((*s == 'E') || (*s == 'e'))

 		return(FORMAT_ENGINE);

 	else

 		return(FORMAT_UNDEF);

 	}

 #if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) || defined(OPENSSL_SYS_NETWARE)

 svoid program_name(char *in, char *out, int size)

 	{

 	int i,n;

 	char *p=NULL;

 	n=strlen(in);

 	/* find the last '/', '\' or ':' */

 	for (i=n-1; i>0; i--)

 		{

 		if ((in[i] == '/') || (in[i] == '\\') || (in[i] == ':'))

 			{

 			p= &(in[i+1]);

 			break;

 			}

 		}

 	if (p == NULL)

 		p=in;

 	n=strlen(p);

 #if defined(OPENSSL_SYS_NETWARE)

    /* strip off trailing .nlm if present. */

    if ((n > 4) && (p[n-4] == '.') &&

       ((p[n-3] == 'n') || (p[n-3] == 'N')) &&

       ((p[n-2] == 'l') || (p[n-2] == 'L')) &&

       ((p[n-1] == 'm') || (p[n-1] == 'M')))

       n-=4;

 #else

 	/* strip off trailing .exe if present. */

 	if ((n > 4) && (p[n-4] == '.') &&

 		((p[n-3] == 'e') || (p[n-3] == 'E')) &&

 		((p[n-2] == 'x') || (p[n-2] == 'X')) &&

 		((p[n-1] == 'e') || (p[n-1] == 'E')))

 		n-=4;

 #endif

 	if (n > size-1)

 		n=size-1;

 	for (i=0; i<n; i++)

 		{

 		if ((p[i] >= 'A') && (p[i] <= 'Z'))

 			out[i]=p[i]-'A'+'a';

 		else

 			out[i]=p[i];

 		}

 	out[n]='\0';

 	}

 #else

 #ifdef OPENSSL_SYS_VMS

 svoid program_name(char *in, char *out, int size)

 	{

 	char *p=in, *q;

 	char *chars=":]>";

 	while(*chars != '\0')

 		{

 		q=strrchr(p,*chars);

 		if (q > p)

 			p = q + 1;

 		chars++;

 		}

 	q=strrchr(p,'.');

 	if (q == NULL)

 		q = p + strlen(p);

 	strncpy(out,p,size-1);

 	if (q-p >= size)

 		{

 		out[size-1]='\0';

 		}

 	else

 		{

 		out[q-p]='\0';

 		}

 	}

 #else

 void program_name(char *in, char *out, int size)

 	{

 	char *p;

 	p=strrchr(in,'/');

 	if (p != NULL)

 		p++;

 	else

 		p=in;

 	BUF_strlcpy(out,p,size);

 	}

 #endif

 #endif

 int chopup_args(ARGS *arg, char *buf, int *argc, char **argv[])

 	{

 	int num,len,i;

 	char *p;

 	*argc=0;

 	*argv=NULL;

 	len=strlen(buf);

 	i=0;

 	if (arg->count == 0)

 		{

 		arg->count=20;

 		arg->data=(char **)OPENSSL_malloc(sizeof(char *)*arg->count);

 		}

 	for (i=0; i<arg->count; i++)

 		arg->data[i]=NULL;

 	num=0;

 	p=buf;

 	for (;;)

 		{

 		/* first scan over white space */

 		if (!*p) break;

 		while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))

 			p++;

 		if (!*p) break;

 		/* The start of something good :-) */

 		if (num >= arg->count)

 			{

 			char **tmp_p;

 			int tlen = arg->count + 20;

 			tmp_p = (char **)OPENSSL_realloc(arg->data,

 				sizeof(char *)*tlen);

 			if (tmp_p == NULL)

 				return 0;

 			arg->data  = tmp_p;

 			arg->count = tlen;

 			/* initialize newly allocated data */

 			for (i = num; i < arg->count; i++)

 				arg->data[i] = NULL;

 			}

 		arg->data[num++]=p;

 		/* now look for the end of this */

 		if ((*p == '\'') || (*p == '\"')) /* scan for closing quote */

 			{

 			i= *(p++);

 			arg->data[num-1]++; /* jump over quote */

 			while (*p && (*p != i))

 				p++;

 			*p='\0';

 			}

 		else

 			{

 			while (*p && ((*p != ' ') &&

 				(*p != '\t') && (*p != '\n')))

 				p++;

 			if (*p == '\0')

 				p--;

 			else

 				*p='\0';

 			}

 		p++;

 		}

 	*argc=num;

 	*argv=arg->data;

 	return(1);

 	}

 #ifndef APP_INIT

 int app_init(long mesgwin)

 	{

 	return(1);

 	}

 #endif

 int dump_cert_text (BIO *out, X509 *x)

 {

 	char *p;

 	p=X509_NAME_oneline(X509_get_subject_name(x),NULL,0);

 	BIO_puts(out,"subject=");

 	BIO_puts(out,p);

 	OPENSSL_free(p);

 	p=X509_NAME_oneline(X509_get_issuer_name(x),NULL,0);

 	BIO_puts(out,"\nissuer=");

 	BIO_puts(out,p);

 	BIO_puts(out,"\n");

 	OPENSSL_free(p);

 	return 0;

 }

 static int ui_open(UI *ui)

 	{

 	return UI_method_get_opener(UI_OpenSSL())(ui);

 	}

 static int ui_read(UI *ui, UI_STRING *uis)

 	{

 	if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD

 		&& UI_get0_user_data(ui))

 		{

 		switch(UI_get_string_type(uis))

 			{

 		case UIT_PROMPT:

 		case UIT_VERIFY:

 			{

 			const char *password =

 				((PW_CB_DATA *)UI_get0_user_data(ui))->password;

 			if (password && password[0] != '\0')

 				{

 				UI_set_result(ui, uis, password);

 				return 1;

 				}

 			}

 		default:

 			break;

 			}

 		}

 	return UI_method_get_reader(UI_OpenSSL())(ui, uis);

 	}

 static int ui_write(UI *ui, UI_STRING *uis)

 	{

 	if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD

 		&& UI_get0_user_data(ui))

 		{

 		switch(UI_get_string_type(uis))

 			{

 		case UIT_PROMPT:

 		case UIT_VERIFY:

 			{

 			const char *password =

 				((PW_CB_DATA *)UI_get0_user_data(ui))->password;

 			if (password && password[0] != '\0')

 				return 1;

 			}

 		default:

 			break;

 			}

 		}

 	return UI_method_get_writer(UI_OpenSSL())(ui, uis);

 	}

 static int ui_close(UI *ui)

 	{

 	return UI_method_get_closer(UI_OpenSSL())(ui);

 	}

 int setup_ui_method(void)

 	{

 	ui_method = UI_create_method("OpenSSL application user interface");

 	UI_method_set_opener(ui_method, ui_open);

 	UI_method_set_reader(ui_method, ui_read);

 	UI_method_set_writer(ui_method, ui_write);

 	UI_method_set_closer(ui_method, ui_close);

 	return 0;

 	}

 void destroy_ui_method(void)

 	{

 	if(ui_method)

 		{

 		UI_destroy_method(ui_method);

 		ui_method = NULL;

 		}

 	}

 int password_callback(char *buf, int bufsiz, int verify,

 	PW_CB_DATA *cb_tmp)

 	{

 	UI *ui = NULL;

 	int res = 0;

 	const char *prompt_info = NULL;

 	const char *password = NULL;

 	PW_CB_DATA *cb_data = (PW_CB_DATA *)cb_tmp;

 	if (cb_data)

 		{

 		if (cb_data->password)

 			password = cb_data->password;

 		if (cb_data->prompt_info)

 			prompt_info = cb_data->prompt_info;

 		}

 	if (password)

 		{

 		res = strlen(password);

 		if (res > bufsiz)

 			res = bufsiz;

 		memcpy(buf, password, res);

 		return res;

 		}

 	ui = UI_new_method(ui_method);

 	if (ui)

 		{

 		int ok = 0;

 		char *buff = NULL;

 		int ui_flags = 0;

 		char *prompt = NULL;

 		prompt = UI_construct_prompt(ui, "pass phrase",

 			prompt_info);

 		ui_flags |= UI_INPUT_FLAG_DEFAULT_PWD;

 		UI_ctrl(ui, UI_CTRL_PRINT_ERRORS, 1, 0, 0);

 		if (ok >= 0)

 			ok = UI_add_input_string(ui,prompt,ui_flags,buf,

 				PW_MIN_LENGTH,BUFSIZ-1);

 		if (ok >= 0 && verify)

 			{

 			buff = (char *)OPENSSL_malloc(bufsiz);

 			ok = UI_add_verify_string(ui,prompt,ui_flags,buff,

 				PW_MIN_LENGTH,BUFSIZ-1, buf);

 			}

 		if (ok >= 0)

 			do

 				{

 				ok = UI_process(ui);

 				}

 			while (ok < 0 && UI_ctrl(ui, UI_CTRL_IS_REDOABLE, 0, 0, 0));

 		if (buff)

 			{

 			OPENSSL_cleanse(buff,(unsigned int)bufsiz);

 			OPENSSL_free(buff);

 			}

 		if (ok >= 0)

 			res = strlen(buf);

 		if (ok == -1)

 			{

 			BIO_printf(bio_err, "User interface error\n");

 			ERR_print_errors(bio_err);

 			OPENSSL_cleanse(buf,(unsigned int)bufsiz);

 			res = 0;

 			}

 		if (ok == -2)

 			{

 			BIO_printf(bio_err,"aborted!\n");

 			OPENSSL_cleanse(buf,(unsigned int)bufsiz);

 			res = 0;

 			}

 		UI_free(ui);

 		OPENSSL_free(prompt);

 		}

 	return res;

 	}

 static char *app_get_pass(BIO *err, char *arg, int keepbio);

 int app_passwd(BIO *err, char *arg1, char *arg2, char **pass1, char **pass2)

 {

 	int same;

 	if(!arg2 || !arg1 || strcmp(arg1, arg2)) same = 0;

 	else same = 1;

 	if(arg1) {

 		*pass1 = app_get_pass(err, arg1, same);

 		if(!*pass1) return 0;

 	} else if(pass1) *pass1 = NULL;

 	if(arg2) {

 		*pass2 = app_get_pass(err, arg2, same ? 2 : 0);

 		if(!*pass2) return 0;

 	} else if(pass2) *pass2 = NULL;

 	return 1;

 }

 static char *app_get_pass(BIO *err, char *arg, int keepbio)

 {

 	char *tmp, tpass[APP_PASS_LEN];

 	static BIO *pwdbio = NULL;

 	int i;

 	if(!strncmp(arg, "pass:", 5)) return BUF_strdup(arg + 5);

 	if(!strncmp(arg, "env:", 4)) {

 		tmp = getenv(arg + 4);

 		if(!tmp) {

 			BIO_printf(err, "Can't read environment variable %s\n", arg + 4);

 			return NULL;

 		}

 		return BUF_strdup(tmp);

 	}

 	if(!keepbio || !pwdbio) {

 		if(!strncmp(arg, "file:", 5)) {

 			pwdbio = BIO_new_file(arg + 5, "r");

 			if(!pwdbio) {

 				BIO_printf(err, "Can't open file %s\n", arg + 5);

 				return NULL;

 			}

 		} else if(!strncmp(arg, "fd:", 3)) {

 			BIO *btmp;

 			i = atoi(arg + 3);

 			if(i >= 0) pwdbio = BIO_new_fd(i, BIO_NOCLOSE);

 			if((i < 0) || !pwdbio) {

 				BIO_printf(err, "Can't access file descriptor %s\n", arg + 3);

 				return NULL;

 			}

 			/* Can't do BIO_gets on an fd BIO so add a buffering BIO */

 			btmp = BIO_new(BIO_f_buffer());

 			pwdbio = BIO_push(btmp, pwdbio);

 		} else 

 		if(!strcmp(arg, "stdin")) {

 			pwdbio = BIO_new_fp(stdin, BIO_NOCLOSE);

 			if(!pwdbio) {

 				BIO_printf(err, "Can't open BIO for stdin\n");

 				return NULL;

 			}

 		} else {

 			BIO_printf(err, "Invalid password argument \"%s\"\n", arg);

 			return NULL;

 		}

 	}

 	i = BIO_gets(pwdbio, tpass, APP_PASS_LEN);

 	if(keepbio != 1) {

 		BIO_free_all(pwdbio);

 		pwdbio = NULL;

 	}

 	if(i <= 0) {

 		BIO_printf(err, "Error reading password from BIO\n");

 		return NULL;

 	}

 	tmp = strchr(tpass, '\n');

 	if(tmp) *tmp = 0;

 	return BUF_strdup(tpass);

 }

 int add_oid_section(BIO *err, CONF *conf)

 {	

 	char *p;

 	STACK_OF(CONF_VALUE) *sktmp;

 	CONF_VALUE *cnf;

 	int i;

 	if(!(p=NCONF_get_string(conf,NULL,"oid_section")))

 		{

 		ERR_clear_error();

 		return 1;

 		}

 	if(!(sktmp = NCONF_get_section(conf, p))) {

 		BIO_printf(err, "problem loading oid section %s\n", p);

 		return 0;

 	}

 	for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {

 		cnf = sk_CONF_VALUE_value(sktmp, i);

 		if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {

 			BIO_printf(err, "problem creating object %s=%s\n",

 							 cnf->name, cnf->value);

 			return 0;

 		}

 	}

 	return 1;

 }

 static int load_pkcs12(BIO *err, BIO *in, const char *desc,

 		pem_password_cb *pem_cb,  void *cb_data,

 		EVP_PKEY **pkey, X509 **cert, STACK_OF(X509) **ca)

 	{

  	const char *pass;

 	char tpass[PEM_BUFSIZE];

 	int len, ret = 0;

 	PKCS12 *p12;

 	p12 = d2i_PKCS12_bio(in, NULL);

 	if (p12 == NULL)

 		{

 		BIO_printf(err, "Error loading PKCS12 file for %s\n", desc);	

 		goto die;

 		}

 	/* See if an empty password will do */

 	if (PKCS12_verify_mac(p12, "", 0) || PKCS12_verify_mac(p12, NULL, 0))

 		pass = "";

 	else

 		{

 		if (!pem_cb)

 			pem_cb = (pem_password_cb *)password_callback;

 		len = pem_cb(tpass, PEM_BUFSIZE, 0, cb_data);

 		if (len < 0) 

 			{

 			BIO_printf(err, "Passpharse callback error for %s\n",

 					desc);

 			goto die;

 			}

 		if (len < PEM_BUFSIZE)

 			tpass[len] = 0;

 		if (!PKCS12_verify_mac(p12, tpass, len))

 			{

 			BIO_printf(err,

 	"Mac verify error (wrong password?) in PKCS12 file for %s\n", desc);	

 			goto die;

 			}

 		pass = tpass;

 		}

 	ret = PKCS12_parse(p12, pass, pkey, cert, ca);

 	die:

 	if (p12)

 		PKCS12_free(p12);

 	return ret;

 	}

 X509 *load_cert(BIO *err, const char *file, int format,

 	const char *pass, ENGINE *e, const char *cert_descrip)

 	{

 	ASN1_HEADER *ah=NULL;

 	BUF_MEM *buf=NULL;

 	X509 *x=NULL;

 	BIO *cert;

 	if ((cert=BIO_new(BIO_s_file())) == NULL)

 		{

 		ERR_print_errors(err);

 		goto end;

 		}

 	if (file == NULL)

 		{

 		setvbuf(stdin, NULL, _IONBF, 0);

 		BIO_set_fp(cert,stdin,BIO_NOCLOSE);

 		}

 	else

 		{

 		if (BIO_read_filename(cert,file) <= 0)

 			{

 			BIO_printf(err, "Error opening %s %s\n",

 				cert_descrip, file);

 			ERR_print_errors(err);

 			goto end;

 			}

 		}

 	if 	(format == FORMAT_ASN1)

 		x=d2i_X509_bio(cert,NULL);

 	else if (format == FORMAT_NETSCAPE)

 		{

 		const unsigned char *p,*op;

 		int size=0,i;

 		/* We sort of have to do it this way because it is sort of nice

 		 * to read the header first and check it, then

 		 * try to read the certificate */

 		buf=BUF_MEM_new();

 		for (;;)

 			{

 			if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10)))

 				goto end;

 			i=BIO_read(cert,&(buf->data[size]),1024*10);

 			size+=i;

 			if (i == 0) break;

 			if (i < 0)

 				{

 				perror("reading certificate");

 				goto end;

 				}

 			}

 		p=(unsigned char *)buf->data;

 		op=p;

 		/* First load the header */

 		if ((ah=d2i_ASN1_HEADER(NULL,&p,(long)size)) == NULL)

 			goto end;

 		if ((ah->header == NULL) || (ah->header->data == NULL) ||

 			(strncmp(NETSCAPE_CERT_HDR,(char *)ah->header->data,

 			ah->header->length) != 0))

 			{

 			BIO_printf(err,"Error reading header on certificate\n");

 			goto end;

 			}

 		/* header is ok, so now read the object */

 		p=op;

 		ah->meth=X509_asn1_meth();

 		if ((ah=d2i_ASN1_HEADER(&ah,&p,(long)size)) == NULL)

 			goto end;

 		x=(X509 *)ah->data;

 		ah->data=NULL;

 		}

 	else if (format == FORMAT_PEM)

 		x=PEM_read_bio_X509_AUX(cert,NULL,

 			(pem_password_cb *)password_callback, NULL);

 	else if (format == FORMAT_PKCS12)

 		{

 		if (!load_pkcs12(err, cert,cert_descrip, NULL, NULL,

 					NULL, &x, NULL))

 			goto end;

 		}

 	else	{

 		BIO_printf(err,"bad input format specified for %s\n",

 			cert_descrip);

 		goto end;

 		}

 end:

 	if (x == NULL)

 		{

 		BIO_printf(err,"unable to load certificate\n");

 		ERR_print_errors(err);

 		}

 	if (ah != NULL) ASN1_HEADER_free(ah);

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

 	if (buf != NULL) BUF_MEM_free(buf);

 	return(x);

 	}

 EVP_PKEY *load_key(BIO *err, const char *file, int format, int maybe_stdin,

 	const char *pass, ENGINE *e, const char *key_descrip)

 	{

 	BIO *key=NULL;

 	EVP_PKEY *pkey=NULL;

 	PW_CB_DATA cb_data;

 	cb_data.password = pass;

 	cb_data.prompt_info = file;

 	if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE))

 		{

 		BIO_printf(err,"no keyfile specified\n");

 		goto end;

 		}

 #ifndef OPENSSL_NO_ENGINE

 	if (format == FORMAT_ENGINE)

 		{

 		if (!e)

 			BIO_printf(bio_err,"no engine specified\n");

 		else

 			pkey = ENGINE_load_private_key(e, file,

 				ui_method, &cb_data);

 		goto end;

 		}

 #endif

 	key=BIO_new(BIO_s_file());

 	if (key == NULL)

 		{

 		ERR_print_errors(err);

 		goto end;

 		}

 	if (file == NULL && maybe_stdin)

 		{

 		setvbuf(stdin, NULL, _IONBF, 0);

 		BIO_set_fp(key,stdin,BIO_NOCLOSE);

 		}

 	else

 		if (BIO_read_filename(key,file) <= 0)

 			{

 			BIO_printf(err, "Error opening %s %s\n",

 				key_descrip, file);

 			ERR_print_errors(err);

 			goto end;

 			}

 	if (format == FORMAT_ASN1)

 		{

 		pkey=d2i_PrivateKey_bio(key, NULL);

 		}

 	else if (format == FORMAT_PEM)

 		{

 		pkey=PEM_read_bio_PrivateKey(key,NULL,

 			(pem_password_cb *)password_callback, &cb_data);

 		}

 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)

 	else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)

 		pkey = load_netscape_key(err, key, file, key_descrip, format);

 #endif

 	else if (format == FORMAT_PKCS12)

 		{

 		if (!load_pkcs12(err, key, key_descrip,

 				(pem_password_cb *)password_callback, &cb_data,

 				&pkey, NULL, NULL))

 			goto end;

 		}

 	else

 		{

 		BIO_printf(err,"bad input format specified for key file\n");

 		goto end;

 		}

  end:

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

 	if (pkey == NULL)

 		BIO_printf(err,"unable to load %s\n", key_descrip);

 	return(pkey);

 	}

 EVP_PKEY *load_pubkey(BIO *err, const char *file, int format, int maybe_stdin,

 	const char *pass, ENGINE *e, const char *key_descrip)

 	{

 	BIO *key=NULL;

 	EVP_PKEY *pkey=NULL;

 	PW_CB_DATA cb_data;

 	cb_data.password = pass;

 	cb_data.prompt_info = file;

 	if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE))

 		{

 		BIO_printf(err,"no keyfile specified\n");

 		goto end;

 		}

 #ifndef OPENSSL_NO_ENGINE

 	if (format == FORMAT_ENGINE)

 		{

 		if (!e)

 			BIO_printf(bio_err,"no engine specified\n");

 		else

 			pkey = ENGINE_load_public_key(e, file,

 				ui_method, &cb_data);

 		goto end;

 		}

 #endif

 	key=BIO_new(BIO_s_file());

 	if (key == NULL)

 		{

 		ERR_print_errors(err);

 		goto end;

 		}

 	if (file == NULL && maybe_stdin)

 		{

 		setvbuf(stdin, NULL, _IONBF, 0);

 		BIO_set_fp(key,stdin,BIO_NOCLOSE);

 		}

 	else

 		if (BIO_read_filename(key,file) <= 0)

 			{

 			BIO_printf(err, "Error opening %s %s\n",

 				key_descrip, file);

 			ERR_print_errors(err);

 			goto end;

 		}

 	if (format == FORMAT_ASN1)

 		{

 		pkey=d2i_PUBKEY_bio(key, NULL);

 		}

 	else if (format == FORMAT_PEM)

 		{

 		pkey=PEM_read_bio_PUBKEY(key,NULL,

 			(pem_password_cb *)password_callback, &cb_data);

 		}

 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)

 	else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)

 		pkey = load_netscape_key(err, key, file, key_descrip, format);

 #endif

 	else

 		{

 		BIO_printf(err,"bad input format specified for key file\n");

 		goto end;

 		}

  end:

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

 	if (pkey == NULL)

 		BIO_printf(err,"unable to load %s\n", key_descrip);

 	return(pkey);

 	}

 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)

 static EVP_PKEY *

 load_netscape_key(BIO *err, BIO *key, const char *file,

 		const char *key_descrip, int format)

 	{

 	EVP_PKEY *pkey;

 	BUF_MEM *buf;

 	RSA	*rsa;

 	const unsigned char *p;

 	int size, i;

 	buf=BUF_MEM_new();

 	pkey = EVP_PKEY_new();

 	size = 0;

 	if (buf == NULL || pkey == NULL)

 		goto error;

 	for (;;)

 		{

 		if (!BUF_MEM_grow_clean(buf,size+1024*10))

 			goto error;

 		i = BIO_read(key, &(buf->data[size]), 1024*10);

 		size += i;

 		if (i == 0)

 			break;

 		if (i < 0)

 			{

 				BIO_printf(err, "Error reading %s %s",

 					key_descrip, file);

 				goto error;

 			}

 		}

 	p=(unsigned char *)buf->data;

 	rsa = d2i_RSA_NET(NULL,&p,(long)size,NULL,

 		(format == FORMAT_IISSGC ? 1 : 0));

 	if (rsa == NULL)

 		goto error;

 	BUF_MEM_free(buf);

 	EVP_PKEY_set1_RSA(pkey, rsa);

 	return pkey;

 error:

 	BUF_MEM_free(buf);

 	EVP_PKEY_free(pkey);

 	return NULL;

 	}

 #endif /* ndef OPENSSL_NO_RC4 */

 STACK_OF(X509) *load_certs(BIO *err, const char *file, int format,

 	const char *pass, ENGINE *e, const char *cert_descrip)

 	{

 	BIO *certs;

 	int i;

 	STACK_OF(X509) *othercerts = NULL;

 	STACK_OF(X509_INFO) *allcerts = NULL;

 	X509_INFO *xi;

 	PW_CB_DATA cb_data;

 	cb_data.password = pass;

 	cb_data.prompt_info = file;

 	if((certs = BIO_new(BIO_s_file())) == NULL)

 		{

 		ERR_print_errors(err);

 		goto end;

 		}

 	if (file == NULL)

 		BIO_set_fp(certs,stdin,BIO_NOCLOSE);

 	else

 		{

 		if (BIO_read_filename(certs,file) <= 0)

 			{

 			BIO_printf(err, "Error opening %s %s\n",

 				cert_descrip, file);

 			ERR_print_errors(err);

 			goto end;

 			}

 		}

 	if      (format == FORMAT_PEM)

 		{

 		othercerts = sk_X509_new_null();

 		if(!othercerts)

 			{

 			sk_X509_free(othercerts);

 			othercerts = NULL;

 			goto end;

 			}

 		allcerts = PEM_X509_INFO_read_bio(certs, NULL,

 				(pem_password_cb *)password_callback, &cb_data);

 		for(i = 0; i < sk_X509_INFO_num(allcerts); i++)

 			{

 			xi = sk_X509_INFO_value (allcerts, i);

 			if (xi->x509)

 				{

 				sk_X509_push(othercerts, xi->x509);

 				xi->x509 = NULL;

 				}

 			}

 		goto end;

 		}

 	else	{

 		BIO_printf(err,"bad input format specified for %s\n",

 			cert_descrip);

 		goto end;

 		}

 end:

 	if (othercerts == NULL)

 		{

 		BIO_printf(err,"unable to load certificates\n");

 		ERR_print_errors(err);

 		}

 	if (allcerts) sk_X509_INFO_pop_free(allcerts, X509_INFO_free);

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

 	return(othercerts);

 	}

 #define X509V3_EXT_UNKNOWN_MASK		(0xfL << 16)

 /* Return error for unknown extensions */

 #define X509V3_EXT_DEFAULT		0

 /* Print error for unknown extensions */

 #define X509V3_EXT_ERROR_UNKNOWN	(1L << 16)

 /* ASN1 parse unknown extensions */

 #define X509V3_EXT_PARSE_UNKNOWN	(2L << 16)

 /* BIO_dump unknown extensions */

 #define X509V3_EXT_DUMP_UNKNOWN		(3L << 16)

 #define X509_FLAG_CA (X509_FLAG_NO_ISSUER | X509_FLAG_NO_PUBKEY | \

 			 X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION)

 int set_cert_ex(unsigned long *flags, const char *arg)

 {

 	static const NAME_EX_TBL cert_tbl[] = {

 		{ "compatible", X509_FLAG_COMPAT, 0xffffffffl},

 		{ "ca_default", X509_FLAG_CA, 0xffffffffl},

 		{ "no_header", X509_FLAG_NO_HEADER, 0},

 		{ "no_version", X509_FLAG_NO_VERSION, 0},

 		{ "no_serial", X509_FLAG_NO_SERIAL, 0},

 		{ "no_signame", X509_FLAG_NO_SIGNAME, 0},

 		{ "no_validity", X509_FLAG_NO_VALIDITY, 0},

 		{ "no_subject", X509_FLAG_NO_SUBJECT, 0},

 		{ "no_issuer", X509_FLAG_NO_ISSUER, 0},

 		{ "no_pubkey", X509_FLAG_NO_PUBKEY, 0},

 		{ "no_extensions", X509_FLAG_NO_EXTENSIONS, 0},

 		{ "no_sigdump", X509_FLAG_NO_SIGDUMP, 0},

 		{ "no_aux", X509_FLAG_NO_AUX, 0},

 		{ "no_attributes", X509_FLAG_NO_ATTRIBUTES, 0},

 		{ "ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},

 		{ "ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},

 		{ "ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},

 		{ "ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},

 		{ NULL, 0, 0}

 	};

 	return set_multi_opts(flags, arg, cert_tbl);

 }

 int set_name_ex(unsigned long *flags, const char *arg)

 {

 	static const NAME_EX_TBL ex_tbl[] = {

 		{ "esc_2253", ASN1_STRFLGS_ESC_2253, 0},

 		{ "esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},

 		{ "esc_msb", ASN1_STRFLGS_ESC_MSB, 0},

 		{ "use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},

 		{ "utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},

 		{ "ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},

 		{ "show_type", ASN1_STRFLGS_SHOW_TYPE, 0},

 		{ "dump_all", ASN1_STRFLGS_DUMP_ALL, 0},

 		{ "dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},

 		{ "dump_der", ASN1_STRFLGS_DUMP_DER, 0},

 		{ "compat", XN_FLAG_COMPAT, 0xffffffffL},

 		{ "sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},

 		{ "sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},

 		{ "sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},

 		{ "sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},

 		{ "dn_rev", XN_FLAG_DN_REV, 0},

 		{ "nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},

 		{ "sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},

 		{ "lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},

 		{ "align", XN_FLAG_FN_ALIGN, 0},

 		{ "oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},

 		{ "space_eq", XN_FLAG_SPC_EQ, 0},

 		{ "dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},

 		{ "RFC2253", XN_FLAG_RFC2253, 0xffffffffL},

 		{ "oneline", XN_FLAG_ONELINE, 0xffffffffL},

 		{ "multiline", XN_FLAG_MULTILINE, 0xffffffffL},

 		{ "ca_default", XN_FLAG_MULTILINE, 0xffffffffL},

 		{ NULL, 0, 0}

 	};

 	return set_multi_opts(flags, arg, ex_tbl);

 }

 int set_ext_copy(int *copy_type, const char *arg)

 {

 	if (!strcasecmp(arg, "none"))

 		*copy_type = EXT_COPY_NONE;

 	else if (!strcasecmp(arg, "copy"))

 		*copy_type = EXT_COPY_ADD;

 	else if (!strcasecmp(arg, "copyall"))

 		*copy_type = EXT_COPY_ALL;

 	else

 		return 0;

 	return 1;

 }

 int copy_extensions(X509 *x, X509_REQ *req, int copy_type)

 {

 	STACK_OF(X509_EXTENSION) *exts = NULL;

 	X509_EXTENSION *ext, *tmpext;

 	ASN1_OBJECT *obj;

 	int i, idx, ret = 0;

 	if (!x || !req || (copy_type == EXT_COPY_NONE))

 		return 1;

 	exts = X509_REQ_get_extensions(req);

 	for(i = 0; i < sk_X509_EXTENSION_num(exts); i++) {

 		ext = sk_X509_EXTENSION_value(exts, i);

 		obj = X509_EXTENSION_get_object(ext);

 		idx = X509_get_ext_by_OBJ(x, obj, -1);

 		/* Does extension exist? */

 		if (idx != -1) {

 			/* If normal copy don't override existing extension */

 			if (copy_type == EXT_COPY_ADD)

 				continue;

 			/* Delete all extensions of same type */

 			do {

 				tmpext = X509_get_ext(x, idx);

 				X509_delete_ext(x, idx);

 				X509_EXTENSION_free(tmpext);

 				idx = X509_get_ext_by_OBJ(x, obj, -1);

 			} while (idx != -1);

 		}

 		if (!X509_add_ext(x, ext, -1))

 			goto end;

 	}

 	ret = 1;

 	end:

 	sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);

 	return ret;

 }

 static int set_multi_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)

 {

 	STACK_OF(CONF_VALUE) *vals;

 	CONF_VALUE *val;

 	int i, ret = 1;

 	if(!arg) return 0;

 	vals = X509V3_parse_list(arg);

 	for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {

 		val = sk_CONF_VALUE_value(vals, i);

 		if (!set_table_opts(flags, val->name, in_tbl))

 			ret = 0;

 	}

 	sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);

 	return ret;

 }

 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)

 {

 	char c;

 	const NAME_EX_TBL *ptbl;

 	c = arg[0];

 	if(c == '-') {

 		c = 0;

 		arg++;

 	} else if (c == '+') {

 		c = 1;

 		arg++;

 	} else c = 1;

 	for(ptbl = in_tbl; ptbl->name; ptbl++) {

 		if(!strcasecmp(arg, ptbl->name)) {

 			*flags &= ~ptbl->mask;

 			if(c) *flags |= ptbl->flag;

 			else *flags &= ~ptbl->flag;

 			return 1;

 		}

 	}

 	return 0;

 }

 void print_name(BIO *out, const char *title, X509_NAME *nm, unsigned long lflags)

 {

 	char *buf;

 	char mline = 0;

 	int indent = 0;

 	if(title) BIO_puts(out, title);

 	if((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {

 		mline = 1;

 		indent = 4;

 	}

 	if(lflags == XN_FLAG_COMPAT) {

 		buf = X509_NAME_oneline(nm, 0, 0);

 		BIO_puts(out, buf);

 		BIO_puts(out, "\n");

 		OPENSSL_free(buf);

 	} else {

 		if(mline) BIO_puts(out, "\n");

 		X509_NAME_print_ex(out, nm, indent, lflags);

 		BIO_puts(out, "\n");

 	}

 }

 X509_STORE *setup_verify(BIO *bp, char *CAfile, char *CApath)

 {

 	X509_STORE *store;

 	X509_LOOKUP *lookup;

 	if(!(store = X509_STORE_new())) goto end;

 	lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());

 	if (lookup == NULL) goto end;

 	if (CAfile) {

 		if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {

 			BIO_printf(bp, "Error loading file %s\n", CAfile);

 			goto end;

 		}

 	} else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);

 	lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());

 	if (lookup == NULL) goto end;

 	if (CApath) {

 		if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {

 			BIO_printf(bp, "Error loading directory %s\n", CApath);

 			goto end;

 		}

 	} else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);

 	ERR_clear_error();

 	return store;

 	end:

 	X509_STORE_free(store);

 	return NULL;

 }

 #ifndef OPENSSL_NO_ENGINE

 /* Try to load an engine in a shareable library */

 static ENGINE *try_load_engine(BIO *err, const char *engine, int debug)

 	{

 	ENGINE *e = ENGINE_by_id("dynamic");

 	if (e)

 		{

 		if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", engine, 0)

 			|| !ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0))

 			{

 			ENGINE_free(e);

 			e = NULL;

 			}

 		}

 	return e;

 	}

 ENGINE *setup_engine(BIO *err, const char *engine, int debug)

         {

         ENGINE *e = NULL;

         if (engine)

                 {

 		if(strcmp(engine, "auto") == 0)

 			{

 			BIO_printf(err,"enabling auto ENGINE support\n");

 			ENGINE_register_all_complete();

 			return NULL;

 			}

 		if((e = ENGINE_by_id(engine)) == NULL

 			&& (e = try_load_engine(err, engine, debug)) == NULL)

 			{

 			BIO_printf(err,"invalid engine \"%s\"\n", engine);

 			ERR_print_errors(err);

 			return NULL;

 			}

 		if (debug)

 			{

 			ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,

 				0, err, 0);

 			}

                 ENGINE_ctrl_cmd(e, "SET_USER_INTERFACE", 0, ui_method, 0, 1);

 		if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))

 			{

 			BIO_printf(err,"can't use that engine\n");

 			ERR_print_errors(err);

 			ENGINE_free(e);

 			return NULL;

 			}

 		BIO_printf(err,"engine \"%s\" set.\n", ENGINE_get_id(e));

 		/* Free our "structural" reference. */

 		ENGINE_free(e);

 		}

         return e;

         }

 #endif

 int load_config(BIO *err, CONF *cnf)

 	{

 	if (!cnf)

 		cnf = config;

 	if (!cnf)

 		return 1;

 	OPENSSL_load_builtin_modules();

 	if (CONF_modules_load(cnf, NULL, 0) <= 0)

 		{

 		BIO_printf(err, "Error configuring OpenSSL\n");

 		ERR_print_errors(err);

 		return 0;

 		}

 	return 1;

 	}

 char *make_config_name()

 	{

 	const char *t=X509_get_default_cert_area();

 	size_t len;

 	char *p;

 	len=strlen(t)+strlen(OPENSSL_CONF)+2;

 	p=OPENSSL_malloc(len);

 	BUF_strlcpy(p,t,len);

 #ifndef OPENSSL_SYS_VMS

 	BUF_strlcat(p,"/",len);

 #endif

 	BUF_strlcat(p,OPENSSL_CONF,len);

 	return p;

 	}

 static unsigned long index_serial_hash(const char **a)

 	{

 	const char *n;

 	n=a[DB_serial];

 	while (*n == '0') n++;

 	return(lh_strhash(n));

 	}

 static int index_serial_cmp(const char **a, const char **b)

 	{

 	const char *aa,*bb;

 	for (aa=a[DB_serial]; *aa == '0'; aa++);

 	for (bb=b[DB_serial]; *bb == '0'; bb++);

 	return(strcmp(aa,bb));

 	}

 static int index_name_qual(char **a)

 	{ return(a[0][0] == 'V'); }

 static unsigned long index_name_hash(const char **a)

 	{ return(lh_strhash(a[DB_name])); }

 int index_name_cmp(const char **a, const char **b)

 	{ return(strcmp(a[DB_name],

 	     b[DB_name])); }

 static IMPLEMENT_LHASH_HASH_FN(index_serial_hash,const char **)

 static IMPLEMENT_LHASH_COMP_FN(index_serial_cmp,const char **)

 static IMPLEMENT_LHASH_HASH_FN(index_name_hash,const char **)

 static IMPLEMENT_LHASH_COMP_FN(index_name_cmp,const char **)

 #undef BSIZE

 #define BSIZE 256

 BIGNUM *load_serial(char *serialfile, int create, ASN1_INTEGER **retai)

 	{

 	BIO *in=NULL;

 	BIGNUM *ret=NULL;

 	MS_STATIC char buf[1024];

 	ASN1_INTEGER *ai=NULL;

 	ai=ASN1_INTEGER_new();

 	if (ai == NULL) goto err;

 	if ((in=BIO_new(BIO_s_file())) == NULL)

 		{

 		ERR_print_errors(bio_err);

 		goto err;

 		}

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

 		{

 		if (!create)

 			{

 			perror(serialfile);

 			goto err;

 			}

 		else

 			{

 			ret=BN_new();

 			if (ret == NULL || !rand_serial(ret, ai))

 				BIO_printf(bio_err, "Out of memory\n");

 			}

 		}

 	else

 		{

 		if (!a2i_ASN1_INTEGER(in,ai,buf,1024))

 			{

 			BIO_printf(bio_err,"unable to load number from %s\n",

 				serialfile);

 			goto err;

 			}

 		ret=ASN1_INTEGER_to_BN(ai,NULL);

 		if (ret == NULL)

 			{

 			BIO_printf(bio_err,"error converting number from bin to BIGNUM\n");

 			goto err;

 			}

 		}

 	if (ret && retai)

 		{

 		*retai = ai;

 		ai = NULL;

 		}

  err:

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

 	if (ai != NULL) ASN1_INTEGER_free(ai);

 	return(ret);

 	}

 int save_serial(char *serialfile, char *suffix, BIGNUM *serial, ASN1_INTEGER **retai)

 	{

 	char buf[1][BSIZE];

 	BIO *out = NULL;

 	int ret=0;

 	ASN1_INTEGER *ai=NULL;

 	int j;

 	if (suffix == NULL)

 		j = strlen(serialfile);

 	else

 		j = strlen(serialfile) + strlen(suffix) + 1;

 	if (j >= BSIZE)

 		{

 		BIO_printf(bio_err,"file name too long\n");

 		goto err;

 		}

 	if (suffix == NULL)

 		BUF_strlcpy(buf[0], serialfile, BSIZE);

 	else

 		{

 #ifndef OPENSSL_SYS_VMS

 		j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", serialfile, suffix);

 #else

 		j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", serialfile, suffix);

 #endif

 		}

 #ifdef RL_DEBUG

 	BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);

 #endif

 	out=BIO_new(BIO_s_file());

 	if (out == NULL)

 		{

 		ERR_print_errors(bio_err);

 		goto err;

 		}

 	if (BIO_write_filename(out,buf[0]) <= 0)

 		{

 		perror(serialfile);

 		goto err;

 		}

 	if ((ai=BN_to_ASN1_INTEGER(serial,NULL)) == NULL)

 		{

 		BIO_printf(bio_err,"error converting serial to ASN.1 format\n");

 		goto err;

 		}

 	i2a_ASN1_INTEGER(out,ai);

 	BIO_puts(out,"\n");

 	ret=1;

 	if (retai)

 		{

 		*retai = ai;

 		ai = NULL;

 		}

 err:

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

 	if (ai != NULL) ASN1_INTEGER_free(ai);

 	return(ret);

 	}

 int rotate_serial(char *serialfile, char *new_suffix, char *old_suffix)

 	{

 	char buf[5][BSIZE];

 	int i,j;

 	struct stat sb;

 	i = strlen(serialfile) + strlen(old_suffix);

 	j = strlen(serialfile) + strlen(new_suffix);

 	if (i > j) j = i;

 	if (j + 1 >= BSIZE)

 		{

 		BIO_printf(bio_err,"file name too long\n");

 		goto err;

 		}

 #ifndef OPENSSL_SYS_VMS

 	j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s",

 		serialfile, new_suffix);

 #else

 	j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s",

 		serialfile, new_suffix);

 #endif

 #ifndef OPENSSL_SYS_VMS

 	j = BIO_snprintf(buf[1], sizeof buf[1], "%s.%s",

 		serialfile, old_suffix);

 #else

 	j = BIO_snprintf(buf[1], sizeof buf[1], "%s-%s",

 		serialfile, old_suffix);

 #endif

 	if (stat(serialfile,&sb) < 0)

 		{

 		if (errno != ENOENT 

 #ifdef ENOTDIR

 			&& errno != ENOTDIR

 #endif

 		   )

 			goto err;

 		}

 	else

 		{

 #ifdef RL_DEBUG

 		BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",

 			serialfile, buf[1]);

 #endif

 		if (rename(serialfile,buf[1]) < 0)

 			{

 			BIO_printf(bio_err,

 				"unable to rename %s to %s\n",

 				serialfile, buf[1]);

 			perror("reason");

 			goto err;

 			}

 		}

 #ifdef RL_DEBUG

 	BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",

 		buf[0],serialfile);

 #endif

 	if (rename(buf[0],serialfile) < 0)

 		{

 		BIO_printf(bio_err,

 			"unable to rename %s to %s\n",

 			buf[0],serialfile);

 		perror("reason");

 		rename(buf[1],serialfile);

 		goto err;

 		}

 	return 1;

  err:

 	return 0;

 	}

 int rand_serial(BIGNUM *b, ASN1_INTEGER *ai)

 	{

 	BIGNUM *btmp;

 	int ret = 0;

 	if (b)

 		btmp = b;

 	else

 		btmp = BN_new();

 	if (!btmp)

 		return 0;

 	if (!BN_pseudo_rand(btmp, SERIAL_RAND_BITS, 0, 0))

 		goto error;

 	if (ai && !BN_to_ASN1_INTEGER(btmp, ai))

 		goto error;

 	ret = 1;

 	error:

 	if (!b)

 		BN_free(btmp);

 	return ret;

 	}

 CA_DB *load_index(char *dbfile, DB_ATTR *db_attr)

 	{

 	CA_DB *retdb = NULL;

 	TXT_DB *tmpdb = NULL;

 	BIO *in = BIO_new(BIO_s_file());

 	CONF *dbattr_conf = NULL;

 	char buf[1][BSIZE];

 	long errorline= -1;

 	if (in == NULL)

 		{

 		ERR_print_errors(bio_err);

 		goto err;

 		}

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

 		{

 		perror(dbfile);

 		BIO_printf(bio_err,"unable to open '%s'\n",dbfile);

 		goto err;

 		}

 	if ((tmpdb = TXT_DB_read(in,DB_NUMBER)) == NULL)

 		{

 		if (tmpdb != NULL) TXT_DB_free(tmpdb);

 		goto err;

 		}

 #ifndef OPENSSL_SYS_VMS

 	BIO_snprintf(buf[0], sizeof buf[0], "%s.attr", dbfile);

 #else

 	BIO_snprintf(buf[0], sizeof buf[0], "%s-attr", dbfile);

 #endif

 	dbattr_conf = NCONF_new(NULL);

 	if (NCONF_load(dbattr_conf,buf[0],&errorline) <= 0)

 		{

 		if (errorline > 0)

 			{

 			BIO_printf(bio_err,

 				"error on line %ld of db attribute file '%s'\n"

 				,errorline,buf[0]);

 			goto err;

 			}

 		else

 			{

 			NCONF_free(dbattr_conf);

 			dbattr_conf = NULL;

 			}

 		}

 	if ((retdb = OPENSSL_malloc(sizeof(CA_DB))) == NULL)

 		{

 		fprintf(stderr, "Out of memory\n");

 		goto err;

 		}

 	retdb->db = tmpdb;

 	tmpdb = NULL;

 	if (db_attr)

 		retdb->attributes = *db_attr;

 	else

 		{

 		retdb->attributes.unique_subject = 1;

 		}

 	if (dbattr_conf)

 		{

 		char *p = NCONF_get_string(dbattr_conf,NULL,"unique_subject");

 		if (p)

 			{

 #ifdef RL_DEBUG

 			BIO_printf(bio_err, "DEBUG[load_index]: unique_subject = \"%s\"\n", p);

 #endif

 			retdb->attributes.unique_subject = parse_yesno(p,1);

 			}

 		}

  err:

 	if (dbattr_conf) NCONF_free(dbattr_conf);

 	if (tmpdb) TXT_DB_free(tmpdb);

 	if (in) BIO_free_all(in);

 	return retdb;

 	}

 int index_index(CA_DB *db)

 	{

 	if (!TXT_DB_create_index(db->db, DB_serial, NULL,

 				LHASH_HASH_FN(index_serial_hash),

 				LHASH_COMP_FN(index_serial_cmp)))

 		{

 		BIO_printf(bio_err,

 		  "error creating serial number index:(%ld,%ld,%ld)\n",

 		  			db->db->error,db->db->arg1,db->db->arg2);

 			return 0;

 		}

 	if (db->attributes.unique_subject

 		&& !TXT_DB_create_index(db->db, DB_name, index_name_qual,

 			LHASH_HASH_FN(index_name_hash),

 			LHASH_COMP_FN(index_name_cmp)))

 		{

 		BIO_printf(bio_err,"error creating name index:(%ld,%ld,%ld)\n",

 			db->db->error,db->db->arg1,db->db->arg2);

 		return 0;

 		}

 	return 1;

 	}

 int save_index(const char *dbfile, const char *suffix, CA_DB *db)

 	{

 	char buf[3][BSIZE];

 	BIO *out = BIO_new(BIO_s_file());

 	int j;

 	if (out == NULL)

 		{

 		ERR_print_errors(bio_err);

 		goto err;

 		}

 	j = strlen(dbfile) + strlen(suffix);

 	if (j + 6 >= BSIZE)

 		{

 		BIO_printf(bio_err,"file name too long\n");

 		goto err;

 		}

 #ifndef OPENSSL_SYS_VMS

 	j = BIO_snprintf(buf[2], sizeof buf[2], "%s.attr", dbfile);

 #else

 	j = BIO_snprintf(buf[2], sizeof buf[2], "%s-attr", dbfile);

 #endif

 #ifndef OPENSSL_SYS_VMS

 	j = BIO_snprintf(buf[1], sizeof buf[1], "%s.attr.%s", dbfile, suffix);

 #else

 	j = BIO_snprintf(buf[1], sizeof buf[1], "%s-attr-%s", dbfile, suffix);

 #endif

 #ifndef OPENSSL_SYS_VMS

 	j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", dbfile, suffix);

 #else

 	j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", dbfile, suffix);

 #endif

 #ifdef RL_DEBUG

 	BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);

 #endif

 	if (BIO_write_filename(out,buf[0]) <= 0)

 		{

 		perror(dbfile);

 		BIO_printf(bio_err,"unable to open '%s'\n", dbfile);

 		goto err;

 		}

 	j=TXT_DB_write(out,db->db);

 	if (j <= 0) goto err;

 	BIO_free(out);

 	out = BIO_new(BIO_s_file());

 #ifdef RL_DEBUG

 	BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[1]);

 #endif

 	if (BIO_write_filename(out,buf[1]) <= 0)

 		{

 		perror(buf[2]);

 		BIO_printf(bio_err,"unable to open '%s'\n", buf[2]);

 		goto err;

 		}

 	BIO_printf(out,"unique_subject = %s\n",

 		db->attributes.unique_subject ? "yes" : "no");

 	BIO_free(out);

 	return 1;

  err:

 	return 0;

 	}

 int rotate_index(const char *dbfile, const char *new_suffix, const char *old_suffix)

 	{

 	char buf[5][BSIZE];

 	int i,j;

 	struct stat sb;

 	i = strlen(dbfile) + strlen(old_suffix);

 	j = strlen(dbfile) + strlen(new_suffix);

 	if (i > j) j = i;

 	if (j + 6 >= BSIZE)

 		{

 		BIO_printf(bio_err,"file name too long\n");

 		goto err;

 		}

 #ifndef OPENSSL_SYS_VMS

 	j = BIO_snprintf(buf[4], sizeof buf[4], "%s.attr", dbfile);

 #else

 	j = BIO_snprintf(buf[4], sizeof buf[4], "%s-attr", dbfile);

 #endif

 #ifndef OPENSSL_SYS_VMS

 	j = BIO_snprintf(buf[2], sizeof buf[2], "%s.attr.%s",

 		dbfile, new_suffix);

 #else

 	j = BIO_snprintf(buf[2], sizeof buf[2], "%s-attr-%s",

 		dbfile, new_suffix);

 #endif

 #ifndef OPENSSL_SYS_VMS

 	j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s",

 		dbfile, new_suffix);

 #else

 	j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s",

 		dbfile, new_suffix);

 #endif

 #ifndef OPENSSL_SYS_VMS

 	j = BIO_snprintf(buf[1], sizeof buf[1], "%s.%s",

 		dbfile, old_suffix);

 #else

 	j = BIO_snprintf(buf[1], sizeof buf[1], "%s-%s",

 		dbfile, old_suffix);

 #endif

 #ifndef OPENSSL_SYS_VMS

 	j = BIO_snprintf(buf[3], sizeof buf[3], "%s.attr.%s",

 		dbfile, old_suffix);

 #else

 	j = BIO_snprintf(buf[3], sizeof buf[3], "%s-attr-%s",

 		dbfile, old_suffix);

 #endif

 	if (stat(dbfile,&sb) < 0)

 		{

 		if (errno != ENOENT 

 #ifdef ENOTDIR

 			&& errno != ENOTDIR

 #endif

 		   )

 			goto err;

 		}

 	else

 		{

 #ifdef RL_DEBUG

 		BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",

 			dbfile, buf[1]);

 #endif

 		if (rename(dbfile,buf[1]) < 0)

 			{

 			BIO_printf(bio_err,

 				"unable to rename %s to %s\n",

 				dbfile, buf[1]);

 			perror("reason");

 			goto err;

 			}

 		}

 #ifdef RL_DEBUG

 	BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",

 		buf[0],dbfile);

 #endif

 	if (rename(buf[0],dbfile) < 0)

 		{

 		BIO_printf(bio_err,

 			"unable to rename %s to %s\n",

 			buf[0],dbfile);

 		perror("reason");

 		rename(buf[1],dbfile);

 		goto err;

 		}

 	if (stat(buf[4],&sb) < 0)

 		{

 		if (errno != ENOENT 

 #ifdef ENOTDIR

 			&& errno != ENOTDIR

 #endif

 		   )

 			goto err;

 		}

 	else

 		{

 #ifdef RL_DEBUG

 		BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",

 			buf[4],buf[3]);

 #endif

 		if (rename(buf[4],buf[3]) < 0)

 			{

 			BIO_printf(bio_err,

 				"unable to rename %s to %s\n",

 				buf[4], buf[3]);

 			perror("reason");

 			rename(dbfile,buf[0]);

 			rename(buf[1],dbfile);

 			goto err;

 			}

 		}

 #ifdef RL_DEBUG

 	BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",

 		buf[2],buf[4]);

 #endif

 	if (rename(buf[2],buf[4]) < 0)

 		{

 		BIO_printf(bio_err,

 			"unable to rename %s to %s\n",

 			buf[2],buf[4]);

 		perror("reason");

 		rename(buf[3],buf[4]);

 		rename(dbfile,buf[0]);

 		rename(buf[1],dbfile);

 		goto err;

 		}

 	return 1;

  err:

 	return 0;

 	}

 void free_index(CA_DB *db)

 	{

 	if (db)

 		{

 		if (db->db) TXT_DB_free(db->db);

 		OPENSSL_free(db);

 		}

 	}

 int parse_yesno(const char *str, int def)

 	{

 	int ret = def;

 	if (str)

 		{

 		switch (*str)

 			{

 		case 'f': /* false */

 		case 'F': /* FALSE */

 		case 'n': /* no */

 		case 'N': /* NO */

 		case '0': /* 0 */

 			ret = 0;

 			break;

 		case 't': /* true */

 		case 'T': /* TRUE */

 		case 'y': /* yes */

 		case 'Y': /* YES */

 		case '1': /* 1 */

 			ret = 0;

 			break;

 		default:

 			ret = def;

 			break;

 			}

 		}

 	return ret;

 	}

 /*

  * subject is expected to be in the format /type0=value0/type1=value1/type2=...

  * where characters may be escaped by \

  */

 X509_NAME *parse_name(char *subject, long chtype, int multirdn)

 	{

 	size_t buflen = strlen(subject)+1; /* to copy the types and values into. due to escaping, the copy can only become shorter */

 	char *buf = OPENSSL_malloc(buflen);

 	size_t max_ne = buflen / 2 + 1; /* maximum number of name elements */

 	char **ne_types = OPENSSL_malloc(max_ne * sizeof (char *));

 	char **ne_values = OPENSSL_malloc(max_ne * sizeof (char *));

 	int *mval = OPENSSL_malloc (max_ne * sizeof (int));

 	char *sp = subject, *bp = buf;

 	int i, ne_num = 0;

 	X509_NAME *n = NULL;

 	int nid;

 	if (!buf || !ne_types || !ne_values)

 		{

 		BIO_printf(bio_err, "malloc error\n");

 		goto error;

 		}	

 	if (*subject != '/')

 		{

 		BIO_printf(bio_err, "Subject does not start with '/'.\n");

 		goto error;

 		}

 	sp++; /* skip leading / */

 	/* no multivalued RDN by default */

 	mval[ne_num] = 0;

 	while (*sp)

 		{

 		/* collect type */

 		ne_types[ne_num] = bp;

 		while (*sp)

 			{

 			if (*sp == '\\') /* is there anything to escape in the type...? */

 				{

 				if (*++sp)

 					*bp++ = *sp++;

 				else	

 					{

 					BIO_printf(bio_err, "escape character at end of string\n");

 					goto error;

 					}

 				}	

 			else if (*sp == '=')

 				{

 				sp++;

 				*bp++ = '\0';

 				break;

 				}

 			else

 				*bp++ = *sp++;

 			}

 		if (!*sp)

 			{

 			BIO_printf(bio_err, "end of string encountered while processing type of subject name element #%d\n", ne_num);

 			goto error;

 			}

 		ne_values[ne_num] = bp;

 		while (*sp)

 			{

 			if (*sp == '\\')

 				{

 				if (*++sp)

 					*bp++ = *sp++;

 				else

 					{

 					BIO_printf(bio_err, "escape character at end of string\n");

 					goto error;

 					}

 				}

 			else if (*sp == '/')

 				{

 				sp++;

 				/* no multivalued RDN by default */

 				mval[ne_num+1] = 0;

 				break;

 				}

 			else if (*sp == '+' && multirdn)

 				{

 				/* a not escaped + signals a mutlivalued RDN */

 				sp++;

 				mval[ne_num+1] = -1;

 				break;

 				}

 			else

 				*bp++ = *sp++;

 			}

 		*bp++ = '\0';

 		ne_num++;

 		}	

 	if (!(n = X509_NAME_new()))

 		goto error;

 	for (i = 0; i < ne_num; i++)

 		{

 		if ((nid=OBJ_txt2nid(ne_types[i])) == NID_undef)

 			{

 			BIO_printf(bio_err, "Subject Attribute %s has no known NID, skipped\n", ne_types[i]);

 			continue;

 			}

 		if (!*ne_values[i])

 			{

 			BIO_printf(bio_err, "No value provided for Subject Attribute %s, skipped\n", ne_types[i]);

 			continue;

 			}

 		if (!X509_NAME_add_entry_by_NID(n, nid, chtype, (unsigned char*)ne_values[i], -1,-1,mval[i]))

 			goto error;

 		}

 	OPENSSL_free(ne_values);

 	OPENSSL_free(ne_types);

 	OPENSSL_free(buf);

 	return n;

 error:

 	X509_NAME_free(n);

 	if (ne_values)

 		OPENSSL_free(ne_values);

 	if (ne_types)

 		OPENSSL_free(ne_types);

 	if (buf)

 		OPENSSL_free(buf);

 	return NULL;

 }

 /* This code MUST COME AFTER anything that uses rename() */

 #ifdef OPENSSL_SYS_WIN32

 int WIN32_rename(const char *from, const char *to)

 	{

 #ifndef OPENSSL_SYS_WINCE

 	/* Windows rename gives an error if 'to' exists, so delete it

 	 * first and ignore file not found errror

 	 */

 	if((remove(to) != 0) && (errno != ENOENT))

 		return -1;

 #undef rename

 	return rename(from, to);

 #else

 	/* convert strings to UNICODE */

 	{

 	BOOL result = FALSE;

 	WCHAR* wfrom;

 	WCHAR* wto;

 	int i;

 	wfrom = malloc((strlen(from)+1)*2);

 	wto = malloc((strlen(to)+1)*2);

 	if (wfrom != NULL && wto != NULL)

 		{

 		for (i=0; i<(int)strlen(from)+1; i++)

 			wfrom[i] = (short)from[i];

 		for (i=0; i<(int)strlen(to)+1; i++)

 			wto[i] = (short)to[i];

 		result = MoveFile(wfrom, wto);

 		}

 	if (wfrom != NULL)

 		free(wfrom);

 	if (wto != NULL)

 		free(wto);

 	return result;

 	}

 #endif

 	}

 #endif

 int args_verify(char ***pargs, int *pargc,

 			int *badarg, BIO *err, X509_VERIFY_PARAM **pm)

 	{

 	ASN1_OBJECT *otmp = NULL;

 	unsigned long flags = 0;

 	int i;

 	int purpose = 0;

 	char **oldargs = *pargs;

 	char *arg = **pargs, *argn = (*pargs)[1];

 	if (!strcmp(arg, "-policy"))

 		{

 		if (!argn)

 			*badarg = 1;

 		else

 			{

 			otmp = OBJ_txt2obj(argn, 0);

 			if (!otmp)

 				{

 				BIO_printf(err, "Invalid Policy \"%s\"\n",

 									argn);

 				*badarg = 1;

 				}

 			}

 		(*pargs)++;

 		}

 	else if (strcmp(arg,"-purpose") == 0)

 		{

 		X509_PURPOSE *xptmp;

 		if (!argn)

 			*badarg = 1;

 		else

 			{

 			i = X509_PURPOSE_get_by_sname(argn);

 			if(i < 0)

 				{

 				BIO_printf(err, "unrecognized purpose\n");

 				*badarg = 1;

 				}

 			else

 				{

 				xptmp = X509_PURPOSE_get0(i);

 				purpose = X509_PURPOSE_get_id(xptmp);

 				}

 			}

 		(*pargs)++;

 		}

 	else if (!strcmp(arg, "-ignore_critical"))

 		flags |= X509_V_FLAG_IGNORE_CRITICAL;

 	else if (!strcmp(arg, "-issuer_checks"))

 		flags |= X509_V_FLAG_CB_ISSUER_CHECK;

 	else if (!strcmp(arg, "-crl_check"))

 		flags |=  X509_V_FLAG_CRL_CHECK;

 	else if (!strcmp(arg, "-crl_check_all"))

 		flags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;

 	else if (!strcmp(arg, "-policy_check"))

 		flags |= X509_V_FLAG_POLICY_CHECK;

 	else if (!strcmp(arg, "-explicit_policy"))

 		flags |= X509_V_FLAG_EXPLICIT_POLICY;

 	else if (!strcmp(arg, "-x509_strict"))

 		flags |= X509_V_FLAG_X509_STRICT;

 	else if (!strcmp(arg, "-policy_print"))

 		flags |= X509_V_FLAG_NOTIFY_POLICY;

 	else

 		return 0;

 	if (*badarg)

 		{

 		if (*pm)

 			X509_VERIFY_PARAM_free(*pm);

 		*pm = NULL;

 		goto end;

 		}

 	if (!*pm && !(*pm = X509_VERIFY_PARAM_new()))

 		{

 		*badarg = 1;

 		goto end;

 		}

 	if (otmp)

 		X509_VERIFY_PARAM_add0_policy(*pm, otmp);

 	if (flags)

 		X509_VERIFY_PARAM_set_flags(*pm, flags);

 	if (purpose)

 		X509_VERIFY_PARAM_set_purpose(*pm, purpose);

 	end:

 	(*pargs)++;

 	if (pargc)

 		*pargc -= *pargs - oldargs;

 	return 1;

 	}

 static void nodes_print(BIO *out, const char *name,

 	STACK_OF(X509_POLICY_NODE) *nodes)

 	{

 	X509_POLICY_NODE *node;

 	int i;

 	BIO_printf(out, "%s Policies:", name);

 	if (nodes)

 		{

 		BIO_puts(out, "\n");

 		for (i = 0; i < sk_X509_POLICY_NODE_num(nodes); i++)

 			{

 			node = sk_X509_POLICY_NODE_value(nodes, i);

 			X509_POLICY_NODE_print(out, node, 2);

 			}

 		}

 	else

 		BIO_puts(out, " <empty>\n");

 	}

 void policies_print(BIO *out, X509_STORE_CTX *ctx)

 	{

 	X509_POLICY_TREE *tree;

 	int explicit_policy;

 	int free_out = 0;

 	if (out == NULL)

 		{

 		out = BIO_new_fp(stderr, BIO_NOCLOSE);

 		free_out = 1;

 		}

 	tree = X509_STORE_CTX_get0_policy_tree(ctx);

 	explicit_policy = X509_STORE_CTX_get_explicit_policy(ctx);

 	BIO_printf(out, "Require explicit Policy: %s\n",

 				explicit_policy ? "True" : "False");

 	nodes_print(out, "Authority", X509_policy_tree_get0_policies(tree));

 	nodes_print(out, "User", X509_policy_tree_get0_user_policies(tree));

 	if (free_out)

 		BIO_free(out);

 	}