/* crypto/asn1/a_object.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 <limits.h>

 #include "cryptlib.h"

 #include <openssl/buffer.h>

 #include <openssl/asn1.h>

 #include <openssl/objects.h>

 #include <openssl/bn.h>

 EXPORT_C int i2d_ASN1_OBJECT(ASN1_OBJECT *a, unsigned char **pp)

 	{

 	unsigned char *p;

 	int objsize;

 	if ((a == NULL) || (a->data == NULL)) return(0);

 	objsize = ASN1_object_size(0,a->length,V_ASN1_OBJECT);

 	if (pp == NULL) return objsize;

 	p= *pp;

 	ASN1_put_object(&p,0,a->length,V_ASN1_OBJECT,V_ASN1_UNIVERSAL);

 	memcpy(p,a->data,a->length);

 	p+=a->length;

 	*pp=p;

 	return(objsize);

 	}

 EXPORT_C int a2d_ASN1_OBJECT(unsigned char *out, int olen, const char *buf, int num)

 	{

 	int i,first,len=0,c, use_bn;

 	char ftmp[24], *tmp = ftmp;

 	int tmpsize = sizeof ftmp;

 	const char *p;

 	unsigned long l;

 	BIGNUM *bl = NULL;

 	if (num == 0)

 		return(0);

 	else if (num == -1)

 		num=strlen(buf);

 	p=buf;

 	c= *(p++);

 	num--;

 	if ((c >= '0') && (c <= '2'))

 		{

 		first= c-'0';

 		}

 	else

 		{

 		ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_FIRST_NUM_TOO_LARGE);

 		goto err;

 		}

 	if (num <= 0)

 		{

 		ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_MISSING_SECOND_NUMBER);

 		goto err;

 		}

 	c= *(p++);

 	num--;

 	for (;;)

 		{

 		if (num <= 0) break;

 		if ((c != '.') && (c != ' '))

 			{

 			ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_INVALID_SEPARATOR);

 			goto err;

 			}

 		l=0;

 		use_bn = 0;

 		for (;;)

 			{

 			if (num <= 0) break;

 			num--;

 			c= *(p++);

 			if ((c == ' ') || (c == '.'))

 				break;

 			if ((c < '0') || (c > '9'))

 				{

 				ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_INVALID_DIGIT);

 				goto err;

 				}

 			if (!use_bn && l > (ULONG_MAX / 10L))

 				{

 				use_bn = 1;

 				if (!bl)

 					bl = BN_new();

 				if (!bl || !BN_set_word(bl, l))

 					goto err;

 				}

 			if (use_bn)

 				{

 				if (!BN_mul_word(bl, 10L)

 					|| !BN_add_word(bl, c-'0'))

 					goto err;

 				}

 			else

 				l=l*10L+(long)(c-'0');

 			}

 		if (len == 0)

 			{

 			if ((first < 2) && (l >= 40))

 				{

 				ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_SECOND_NUMBER_TOO_LARGE);

 				goto err;

 				}

 			if (use_bn)

 				{

 				if (!BN_add_word(bl, first * 40))

 					goto err;

 				}

 			else

 				l+=(long)first*40;

 			}

 		i=0;

 		if (use_bn)

 			{

 			int blsize;

 			blsize = BN_num_bits(bl);

 			blsize = (blsize + 6)/7;

 			if (blsize > tmpsize)

 				{

 				if (tmp != ftmp)

 					OPENSSL_free(tmp);

 				tmpsize = blsize + 32;

 				tmp = OPENSSL_malloc(tmpsize);

 				if (!tmp)

 					goto err;

 				}

 			while(blsize--)

 				tmp[i++] = (unsigned char)BN_div_word(bl, 0x80L);

 			}

 		else

 			{

 			for (;;)

 				{

 				tmp[i++]=(unsigned char)l&0x7f;

 				l>>=7L;

 				if (l == 0L) break;

 				}

 			}

 		if (out != NULL)

 			{

 			if (len+i > olen)

 				{

 				ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_BUFFER_TOO_SMALL);

 				goto err;

 				}

 			while (--i > 0)

 				out[len++]=tmp[i]|0x80;

 			out[len++]=tmp[0];

 			}

 		else

 			len+=i;

 		}

 	if (tmp != ftmp)

 		OPENSSL_free(tmp);

 	if (bl)

 		BN_free(bl);

 	return(len);

 err:

 	if (tmp != ftmp)

 		OPENSSL_free(tmp);

 	if (bl)

 		BN_free(bl);

 	return(0);

 	}

 EXPORT_C int i2t_ASN1_OBJECT(char *buf, int buf_len, ASN1_OBJECT *a)

 {

 	return OBJ_obj2txt(buf, buf_len, a, 0);

 }

 EXPORT_C int i2a_ASN1_OBJECT(BIO *bp, ASN1_OBJECT *a)

 	{

 #ifndef SYMBIAN			

 	char buf[80];

 #else

   char buf[40];

 #endif	

   char *p = buf;

 	int i;

 	if ((a == NULL) || (a->data == NULL))

 		return(BIO_write(bp,"NULL",4));

 	i=i2t_ASN1_OBJECT(buf,sizeof buf,a);

 	if (i > (int)(sizeof(buf) - 1))

 		{

 		p = OPENSSL_malloc(i + 1);

 		if (!p)

 			return -1;

 		i2t_ASN1_OBJECT(p,i + 1,a);

 		}

 	if (i <= 0)

 		return BIO_write(bp, "<INVALID>", 9);

 	BIO_write(bp,p,i);

 	if (p != buf)

 		OPENSSL_free(p);

 	return(i);

 	}

 EXPORT_C ASN1_OBJECT *d2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,

 	     long length)

 {

 	const unsigned char *p;

 	long len;

 	int tag,xclass;

 	int inf,i;

 	ASN1_OBJECT *ret = NULL;

 	p= *pp;

 	inf=ASN1_get_object(&p,&len,&tag,&xclass,length);

 	if (inf & 0x80)

 		{

 		i=ASN1_R_BAD_OBJECT_HEADER;

 		goto err;

 		}

 	if (tag != V_ASN1_OBJECT)

 		{

 		i=ASN1_R_EXPECTING_AN_OBJECT;

 		goto err;

 		}

 	ret = c2i_ASN1_OBJECT(a, &p, len);

 	if(ret) *pp = p;

 	return ret;

 err:

 	ASN1err(ASN1_F_D2I_ASN1_OBJECT,i);

 	if ((ret != NULL) && ((a == NULL) || (*a != ret)))

 		ASN1_OBJECT_free(ret);

 	return(NULL);

 }

 EXPORT_C ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,

 	     long len)

 	{

 	ASN1_OBJECT *ret=NULL;

 	const unsigned char *p;

 	int i;

 	/* only the ASN1_OBJECTs from the 'table' will have values

 	 * for ->sn or ->ln */

 	if ((a == NULL) || ((*a) == NULL) ||

 		!((*a)->flags & ASN1_OBJECT_FLAG_DYNAMIC))

 		{

 		if ((ret=ASN1_OBJECT_new()) == NULL) return(NULL);

 		}

 	else	ret=(*a);

 	p= *pp;

 	if ((ret->data == NULL) || (ret->length < len))

 		{

 		if (ret->data != NULL) OPENSSL_free(ret->data);

 		ret->data=(unsigned char *)OPENSSL_malloc(len ? (int)len : 1);

 		ret->flags|=ASN1_OBJECT_FLAG_DYNAMIC_DATA;

 		if (ret->data == NULL)

 			{ i=ERR_R_MALLOC_FAILURE; goto err; }

 		}

 	memcpy(ret->data,p,(int)len);

 	ret->length=(int)len;

 	ret->sn=NULL;

 	ret->ln=NULL;

 	/* ret->flags=ASN1_OBJECT_FLAG_DYNAMIC; we know it is dynamic */

 	p+=len;

 	if (a != NULL) (*a)=ret;

 	*pp=p;

 	return(ret);

 err:

 	ASN1err(ASN1_F_C2I_ASN1_OBJECT,i);

 	if ((ret != NULL) && ((a == NULL) || (*a != ret)))

 		ASN1_OBJECT_free(ret);

 	return(NULL);

 	}

 EXPORT_C ASN1_OBJECT *ASN1_OBJECT_new(void)

 	{

 	ASN1_OBJECT *ret;

 	ret=(ASN1_OBJECT *)OPENSSL_malloc(sizeof(ASN1_OBJECT));

 	if (ret == NULL)

 		{

 		ASN1err(ASN1_F_ASN1_OBJECT_NEW,ERR_R_MALLOC_FAILURE);

 		return(NULL);

 		}

 	ret->length=0;

 	ret->data=NULL;

 	ret->nid=0;

 	ret->sn=NULL;

 	ret->ln=NULL;

 	ret->flags=ASN1_OBJECT_FLAG_DYNAMIC;

 	return(ret);

 	}

 EXPORT_C void ASN1_OBJECT_free(ASN1_OBJECT *a)

 	{

 	if (a == NULL) return;

 	if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_STRINGS)

 		{

 #ifndef CONST_STRICT /* disable purely for compile-time strict const checking. Doing this on a "real" compile will cause memory leaks */

 		if (a->sn != NULL) OPENSSL_free((void *)a->sn);

 		if (a->ln != NULL) OPENSSL_free((void *)a->ln);

 #endif

 		a->sn=a->ln=NULL;

 		}

 	if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_DATA)

 		{

 		if (a->data != NULL) OPENSSL_free(a->data);

 		a->data=NULL;

 		a->length=0;

 		}

 	if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC)

 		OPENSSL_free(a);

 	}

 EXPORT_C ASN1_OBJECT *ASN1_OBJECT_create(int nid, unsigned char *data, int len,

 	     const char *sn, const char *ln)

 	{

 	ASN1_OBJECT o;

 	o.sn=sn;

 	o.ln=ln;

 	o.data=data;

 	o.nid=nid;

 	o.length=len;

 	o.flags=ASN1_OBJECT_FLAG_DYNAMIC|ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|

 		ASN1_OBJECT_FLAG_DYNAMIC_DATA;

 	return(OBJ_dup(&o));

 	}

 IMPLEMENT_STACK_OF(ASN1_OBJECT)

 IMPLEMENT_ASN1_SET_OF(ASN1_OBJECT)