/* crypto/asn1/t_x509.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.]

 */

/*

 © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.

 */

#include <stdio.h>

#include "cryptlib.h"

#include <openssl/buffer.h>

#include <openssl/bn.h>

#ifndef OPENSSL_NO_RSA

#include <openssl/rsa.h>

#endif

#ifndef OPENSSL_NO_DSA

#include <openssl/dsa.h>

#endif

#ifndef OPENSSL_NO_EC

#include <openssl/ec.h>

#endif

#include <openssl/objects.h>

#include <openssl/x509.h>

#include <openssl/x509v3.h>

#if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))

#include "libcrypto_wsd_macros.h"

#include "libcrypto_wsd.h"

#endif

#ifndef OPENSSL_NO_FP_API

EXPORT_C int X509_print_fp(FILE *fp, X509 *x)

	{

	return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);

	}

EXPORT_C int X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag, unsigned long cflag)

        {

        BIO *b;

        int ret;

        if ((b=BIO_new(BIO_s_file())) == NULL)

		{

		X509err(X509_F_X509_PRINT_EX_FP,ERR_R_BUF_LIB);

                return(0);

		}

        BIO_set_fp(b,fp,BIO_NOCLOSE);

        ret=X509_print_ex(b, x, nmflag, cflag);

        BIO_free(b);

        return(ret);

        }

#endif

EXPORT_C int X509_print(BIO *bp, X509 *x)

{

	return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);

}

EXPORT_C int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags, unsigned long cflag)

	{

	long l;

	int ret=0,i;

	char *m=NULL,mlch = ' ';

	int nmindent = 0;

	X509_CINF *ci;

	ASN1_INTEGER *bs;

	EVP_PKEY *pkey=NULL;

	const char *neg;

	ASN1_STRING *str=NULL;

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

			mlch = '\n';

			nmindent = 12;

	}

	if(nmflags == X509_FLAG_COMPAT)

		nmindent = 16;

	ci=x->cert_info;

	if(!(cflag & X509_FLAG_NO_HEADER))

		{

		if (BIO_write(bp,"Certificate:\n",13) <= 0) goto err;

		if (BIO_write(bp,"    Data:\n",10) <= 0) goto err;

		}

	if(!(cflag & X509_FLAG_NO_VERSION))

		{

		l=X509_get_version(x);

		if (BIO_printf(bp,"%8sVersion: %lu (0x%lx)\n","",l+1,l) <= 0) goto err;

		}

	if(!(cflag & X509_FLAG_NO_SERIAL))

		{

		if (BIO_write(bp,"        Serial Number:",22) <= 0) goto err;

		bs=X509_get_serialNumber(x);

		if (bs->length <= 4)

			{

			l=ASN1_INTEGER_get(bs);

			if (l < 0)

				{

				l= -l;

				neg="-";

				}

			else

				neg="";

			if (BIO_printf(bp," %s%lu (%s0x%lx)\n",neg,l,neg,l) <= 0)

				goto err;

			}

		else

			{

			neg=(bs->type == V_ASN1_NEG_INTEGER)?" (Negative)":"";

			if (BIO_printf(bp,"\n%12s%s","",neg) <= 0) goto err;

			for (i=0; i<bs->length; i++)

				{

				if (BIO_printf(bp,"%02x%c",bs->data[i],

					((i+1 == bs->length)?'\n':':')) <= 0)

					goto err;

				}

			}

		}

	if(!(cflag & X509_FLAG_NO_SIGNAME))

		{

		if (BIO_printf(bp,"%8sSignature Algorithm: ","") <= 0) 

			goto err;

		if (i2a_ASN1_OBJECT(bp, ci->signature->algorithm) <= 0)

			goto err;

		if (BIO_puts(bp, "\n") <= 0)

			goto err;

		}

	if(!(cflag & X509_FLAG_NO_ISSUER))

		{

		if (BIO_printf(bp,"        Issuer:%c",mlch) <= 0) goto err;

		if (X509_NAME_print_ex(bp,X509_get_issuer_name(x),nmindent, nmflags) < 0) goto err;

		if (BIO_write(bp,"\n",1) <= 0) goto err;

		}

	if(!(cflag & X509_FLAG_NO_VALIDITY))

		{

		if (BIO_write(bp,"        Validity\n",17) <= 0) goto err;

		if (BIO_write(bp,"            Not Before: ",24) <= 0) goto err;

		if (!ASN1_TIME_print(bp,X509_get_notBefore(x))) goto err;

		if (BIO_write(bp,"\n            Not After : ",25) <= 0) goto err;

		if (!ASN1_TIME_print(bp,X509_get_notAfter(x))) goto err;

		if (BIO_write(bp,"\n",1) <= 0) goto err;

		}

	if(!(cflag & X509_FLAG_NO_SUBJECT))

		{

		if (BIO_printf(bp,"        Subject:%c",mlch) <= 0) goto err;

		if (X509_NAME_print_ex(bp,X509_get_subject_name(x),nmindent, nmflags) < 0) goto err;

		if (BIO_write(bp,"\n",1) <= 0) goto err;

		}

	if(!(cflag & X509_FLAG_NO_PUBKEY))

		{

		if (BIO_write(bp,"        Subject Public Key Info:\n",33) <= 0)

			goto err;

		if (BIO_printf(bp,"%12sPublic Key Algorithm: ","") <= 0)

			goto err;

		if (i2a_ASN1_OBJECT(bp, ci->key->algor->algorithm) <= 0)

			goto err;

		if (BIO_puts(bp, "\n") <= 0)

			goto err;

		pkey=X509_get_pubkey(x);

		if (pkey == NULL)

			{

			BIO_printf(bp,"%12sUnable to load Public Key\n","");

			ERR_print_errors(bp);

			}

		else

#ifndef OPENSSL_NO_RSA

		if (pkey->type == EVP_PKEY_RSA)

			{

			BIO_printf(bp,"%12sRSA Public Key: (%d bit)\n","",

			BN_num_bits(pkey->pkey.rsa->n));

			RSA_print(bp,pkey->pkey.rsa,16);

			}

		else

#endif

#ifndef OPENSSL_NO_DSA

		if (pkey->type == EVP_PKEY_DSA)

			{

			BIO_printf(bp,"%12sDSA Public Key:\n","");

			DSA_print(bp,pkey->pkey.dsa,16);

			}

		else

#endif

#ifndef OPENSSL_NO_EC

		if (pkey->type == EVP_PKEY_EC)

			{

			BIO_printf(bp, "%12sEC Public Key:\n","");

			EC_KEY_print(bp, pkey->pkey.ec, 16);

			}

		else

#endif

			BIO_printf(bp,"%12sUnknown Public Key:\n","");

		EVP_PKEY_free(pkey);

		}

	if (!(cflag & X509_FLAG_NO_EXTENSIONS))

		X509V3_extensions_print(bp, "X509v3 extensions",

					ci->extensions, cflag, 8);

	if(!(cflag & X509_FLAG_NO_SIGDUMP))

		{

		if(X509_signature_print(bp, x->sig_alg, x->signature) <= 0) goto err;

		}

	if(!(cflag & X509_FLAG_NO_AUX))

		{

		if (!X509_CERT_AUX_print(bp, x->aux, 0)) goto err;

		}

	ret=1;

err:

	if (str != NULL) ASN1_STRING_free(str);

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

	return(ret);

	}

EXPORT_C int X509_ocspid_print (BIO *bp, X509 *x)

	{

	unsigned char *der=NULL ;

	unsigned char *dertmp;

	int derlen;

	int i;

	unsigned char SHA1md[SHA_DIGEST_LENGTH];

	/* display the hash of the subject as it would appear

	   in OCSP requests */

	if (BIO_printf(bp,"        Subject OCSP hash: ") <= 0)

		goto err;

	derlen = i2d_X509_NAME(x->cert_info->subject, NULL);

	if ((der = dertmp = (unsigned char *)OPENSSL_malloc (derlen)) == NULL)

		goto err;

	i2d_X509_NAME(x->cert_info->subject, &dertmp);

	EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL);

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

		{

		if (BIO_printf(bp,"%02X",SHA1md[i]) <= 0) goto err;

		}

	OPENSSL_free (der);

	der=NULL;

	/* display the hash of the public key as it would appear

	   in OCSP requests */

	if (BIO_printf(bp,"\n        Public key OCSP hash: ") <= 0)

		goto err;

	EVP_Digest(x->cert_info->key->public_key->data,

		x->cert_info->key->public_key->length, SHA1md, NULL, EVP_sha1(), NULL);

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

		{

		if (BIO_printf(bp,"%02X",SHA1md[i]) <= 0)

			goto err;

		}

	BIO_printf(bp,"\n");

	return (1);

err:

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

	return(0);

	}

EXPORT_C int X509_signature_print(BIO *bp, X509_ALGOR *sigalg, ASN1_STRING *sig)

{

	unsigned char *s;

	int i, n;

	if (BIO_puts(bp,"    Signature Algorithm: ") <= 0) return 0;

	if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0) return 0;

	n=sig->length;

	s=sig->data;

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

		{

		if ((i%18) == 0)

			if (BIO_write(bp,"\n        ",9) <= 0) return 0;

			if (BIO_printf(bp,"%02x%s",s[i],

				((i+1) == n)?"":":") <= 0) return 0;

		}

	if (BIO_write(bp,"\n",1) != 1) return 0;

	return 1;

}

EXPORT_C int ASN1_STRING_print(BIO *bp, ASN1_STRING *v)

	{

	int i,n;

	char buf[80],*p;;

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

	n=0;

	p=(char *)v->data;

	for (i=0; i<v->length; i++)

		{

		if ((p[i] > '~') || ((p[i] < ' ') &&

			(p[i] != '\n') && (p[i] != '\r')))

			buf[n]='.';

		else

			buf[n]=p[i];

		n++;

		if (n >= 80)

			{

			if (BIO_write(bp,buf,n) <= 0)

				return(0);

			n=0;

			}

		}

	if (n > 0)

		if (BIO_write(bp,buf,n) <= 0)

			return(0);

	return(1);

	}

EXPORT_C int ASN1_TIME_print(BIO *bp, ASN1_TIME *tm)

{

	if(tm->type == V_ASN1_UTCTIME) return ASN1_UTCTIME_print(bp, tm);

	if(tm->type == V_ASN1_GENERALIZEDTIME)

				return ASN1_GENERALIZEDTIME_print(bp, tm);

	BIO_write(bp,"Bad time value",14);

	return(0);

}

#ifndef EMULATOR

static const char *mon[12]=

    {

    "Jan","Feb","Mar","Apr","May","Jun",

    "Jul","Aug","Sep","Oct","Nov","Dec"

    };

#else

static const char * const mon[12]=

    {

    "Jan","Feb","Mar","Apr","May","Jun",

    "Jul","Aug","Sep","Oct","Nov","Dec"

    };

#endif

EXPORT_C int ASN1_GENERALIZEDTIME_print(BIO *bp, ASN1_GENERALIZEDTIME *tm)

	{

	char *v;

	int gmt=0;

	int i;

	int y=0,M=0,d=0,h=0,m=0,s=0;

	i=tm->length;

	v=(char *)tm->data;

	if (i < 12) goto err;

	if (v[i-1] == 'Z') gmt=1;

	for (i=0; i<12; i++)

		if ((v[i] > '9') || (v[i] < '0')) goto err;

	y= (v[0]-'0')*1000+(v[1]-'0')*100 + (v[2]-'0')*10+(v[3]-'0');

	M= (v[4]-'0')*10+(v[5]-'0');

	if ((M > 12) || (M < 1)) goto err;

	d= (v[6]-'0')*10+(v[7]-'0');

	h= (v[8]-'0')*10+(v[9]-'0');

	m=  (v[10]-'0')*10+(v[11]-'0');

	if (	(v[12] >= '0') && (v[12] <= '9') &&

		(v[13] >= '0') && (v[13] <= '9'))

		s=  (v[12]-'0')*10+(v[13]-'0');

	if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",

		mon[M-1],d,h,m,s,y,(gmt)?" GMT":"") <= 0)

		return(0);

	else

		return(1);

err:

	BIO_write(bp,"Bad time value",14);

	return(0);

	}

EXPORT_C int ASN1_UTCTIME_print(BIO *bp, ASN1_UTCTIME *tm)

	{

	char *v;

	int gmt=0;

	int i;

	int y=0,M=0,d=0,h=0,m=0,s=0;

	i=tm->length;

	v=(char *)tm->data;

	if (i < 10) goto err;

	if (v[i-1] == 'Z') gmt=1;

	for (i=0; i<10; i++)

		if ((v[i] > '9') || (v[i] < '0')) goto err;

	y= (v[0]-'0')*10+(v[1]-'0');

	if (y < 50) y+=100;

	M= (v[2]-'0')*10+(v[3]-'0');

	if ((M > 12) || (M < 1)) goto err;

	d= (v[4]-'0')*10+(v[5]-'0');

	h= (v[6]-'0')*10+(v[7]-'0');

	m=  (v[8]-'0')*10+(v[9]-'0');

	if (	(v[10] >= '0') && (v[10] <= '9') &&

		(v[11] >= '0') && (v[11] <= '9'))

		s=  (v[10]-'0')*10+(v[11]-'0');

	if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",

		mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":"") <= 0)

		return(0);

	else

		return(1);

err:

	BIO_write(bp,"Bad time value",14);

	return(0);

	}

EXPORT_C int X509_NAME_print(BIO *bp, X509_NAME *name, int obase)

	{

	char *s,*c,*b;

	int ret=0,l,i;

	l=80-2-obase;

	b=s=X509_NAME_oneline(name,NULL,0);

	if (!*s)

		{

		OPENSSL_free(b);

		return 1;

		}

	s++; /* skip the first slash */

	c=s;

	for (;;)

		{

#ifndef CHARSET_EBCDIC

		if (	((*s == '/') &&

				((s[1] >= 'A') && (s[1] <= 'Z') && (

					(s[2] == '=') ||

					((s[2] >= 'A') && (s[2] <= 'Z') &&

					(s[3] == '='))

				 ))) ||

			(*s == '\0'))

#else

		if (	((*s == '/') &&

				(isupper(s[1]) && (

					(s[2] == '=') ||

					(isupper(s[2]) &&

					(s[3] == '='))

				 ))) ||

			(*s == '\0'))

#endif

			{

			i=s-c;

			if (BIO_write(bp,c,i) != i) goto err;

			c+=i;

			c++;

			if (*s != '\0')

				{

				if (BIO_write(bp,", ",2) != 2) goto err;

				}

			l--;

			}

		if (*s == '\0') break;

		s++;

		l--;

		}

	ret=1;

	if (0)

		{

err:

		X509err(X509_F_X509_NAME_PRINT,ERR_R_BUF_LIB);

		}

	OPENSSL_free(b);

	return(ret);

	}