/* crypto/asn1/t_req.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 "cryptlib.h"

#include <openssl/buffer.h>

#include <openssl/bn.h>

#include <openssl/objects.h>

#include <openssl/x509.h>

#include <openssl/x509v3.h>

#ifndef OPENSSL_NO_RSA

#include <openssl/rsa.h>

#endif

#ifndef OPENSSL_NO_DSA

#include <openssl/dsa.h>

#endif

#ifndef OPENSSL_NO_FP_API

EXPORT_C int X509_REQ_print_fp(FILE *fp, X509_REQ *x)

        {

        BIO *b;

        int ret;

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

		{

		X509err(X509_F_X509_REQ_PRINT_FP,ERR_R_BUF_LIB);

                return(0);

		}

        BIO_set_fp(b,fp,BIO_NOCLOSE);

        ret=X509_REQ_print(b, x);

        BIO_free(b);

        return(ret);

        }

#endif

EXPORT_C int X509_REQ_print_ex(BIO *bp, X509_REQ *x, unsigned long nmflags, unsigned long cflag)

	{

	unsigned long l;

	int i;

	const char *neg;

	X509_REQ_INFO *ri;

	EVP_PKEY *pkey;

	STACK_OF(X509_ATTRIBUTE) *sk;

	STACK_OF(X509_EXTENSION) *exts;

	char mlch = ' ';

	int nmindent = 0;

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

		mlch = '\n';

		nmindent = 12;

	}

	if(nmflags == X509_FLAG_COMPAT)

		nmindent = 16;

	ri=x->req_info;

	if(!(cflag & X509_FLAG_NO_HEADER))

		{

		if (BIO_write(bp,"Certificate Request:\n",21) <= 0) goto err;

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

		}

	if(!(cflag & X509_FLAG_NO_VERSION))

		{

		neg=(ri->version->type == V_ASN1_NEG_INTEGER)?"-":"";

		l=0;

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

			{ l<<=8; l+=ri->version->data[i]; }

		if(BIO_printf(bp,"%8sVersion: %s%lu (%s0x%lx)\n","",neg,l,neg,

			      l) <= 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,ri->subject,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, ri->pubkey->algor->algorithm) <= 0)

			goto err;

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

			goto err;

		pkey=X509_REQ_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_ATTRIBUTES))

		{

		/* may not be */

		if(BIO_printf(bp,"%8sAttributes:\n","") <= 0)

		    goto err;

		sk=x->req_info->attributes;

		if (sk_X509_ATTRIBUTE_num(sk) == 0)

			{

			if(BIO_printf(bp,"%12sa0:00\n","") <= 0)

			    goto err;

			}

		else

			{

			for (i=0; i<sk_X509_ATTRIBUTE_num(sk); i++)

				{

				ASN1_TYPE *at;

				X509_ATTRIBUTE *a;

				ASN1_BIT_STRING *bs=NULL;

				ASN1_TYPE *t;

				int j,type=0,count=1,ii=0;

				a=sk_X509_ATTRIBUTE_value(sk,i);

				if(X509_REQ_extension_nid(OBJ_obj2nid(a->object)))

									continue;

				if(BIO_printf(bp,"%12s","") <= 0)

				    goto err;

				if ((j=i2a_ASN1_OBJECT(bp,a->object)) > 0)

				{

				if (a->single)

					{

					t=a->value.single;

					type=t->type;

					bs=t->value.bit_string;

					}

				else

					{

					ii=0;

					count=sk_ASN1_TYPE_num(a->value.set);

get_next:

					at=sk_ASN1_TYPE_value(a->value.set,ii);

					type=at->type;

					bs=at->value.asn1_string;

					}

				}

				for (j=25-j; j>0; j--)

					if (BIO_write(bp," ",1) != 1) goto err;

				if (BIO_puts(bp,":") <= 0) goto err;

				if (	(type == V_ASN1_PRINTABLESTRING) ||

					(type == V_ASN1_T61STRING) ||

					(type == V_ASN1_IA5STRING))

					{

					if (BIO_write(bp,(char *)bs->data,bs->length)

						!= bs->length)

						goto err;

					BIO_puts(bp,"\n");

					}

				else

					{

					BIO_puts(bp,"unable to print attribute\n");

					}

				if (++ii < count) goto get_next;

				}

			}

		}

	if(!(cflag & X509_FLAG_NO_EXTENSIONS))

		{

		exts = X509_REQ_get_extensions(x);

		if(exts)

			{

			BIO_printf(bp,"%8sRequested Extensions:\n","");

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

				{

				ASN1_OBJECT *obj;

				X509_EXTENSION *ex;

				int j;

				ex=sk_X509_EXTENSION_value(exts, i);

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

				obj=X509_EXTENSION_get_object(ex);

				i2a_ASN1_OBJECT(bp,obj);

				j=X509_EXTENSION_get_critical(ex);

				if (BIO_printf(bp,": %s\n",j?"critical":"") <= 0)

					goto err;

				if(!X509V3_EXT_print(bp, ex, cflag, 16))

					{

					BIO_printf(bp, "%16s", "");

					M_ASN1_OCTET_STRING_print(bp,ex->value);

					}

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

				}

			sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);

			}

		}

	if(!(cflag & X509_FLAG_NO_SIGDUMP))

		{

		if(!X509_signature_print(bp, x->sig_alg, x->signature)) goto err;

		}

	return(1);

err:

	X509err(X509_F_X509_REQ_PRINT_EX,ERR_R_BUF_LIB);

	return(0);

	}

EXPORT_C int X509_REQ_print(BIO *bp, X509_REQ *x)

	{

	return X509_REQ_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);

	}