u-boot-megous/lib/openssl/asn1/asn1_new_free.c

#include "asn1.h"
#include "asn1t.h"
#include "myfunction.h"

void asn1_item_combine_free(ASN1_VALUE **pval, const ASN1_ITEM *it, int combine);

///////////////ASN1_item_free//////////////////////////ok

void ASN1_item_free(ASN1_VALUE *val, const ASN1_ITEM *it)
	{

	asn1_item_combine_free(&val, it, 0);
	}

//////////////ASN1_TYPE_set//////////////////////ok
void ASN1_TYPE_set(ASN1_TYPE *a, int type, void *value)
{

	if (a->value.ptr != NULL)
		{
		ASN1_TYPE **tmp_a = &a;
		ASN1_primitive_free((ASN1_VALUE **)tmp_a, NULL);
		}
	a->type=type;
	a->value.ptr=value;
}

/////////////////ASN1_primitive_free//////////////////////////ok

void ASN1_primitive_free(ASN1_VALUE **pval, const ASN1_ITEM *it)
	{
	int utype;

	if (it)
		{
		const ASN1_PRIMITIVE_FUNCS *pf;
		pf = it->funcs;
		if (pf && pf->prim_free)
			{
			pf->prim_free(pval, it);
			return;
			}
		}

	if (!it)
		{
		ASN1_TYPE *typ = (ASN1_TYPE *)*pval;
		utype = typ->type;
		pval = &typ->value.asn1_value;
		if (!*pval)
			return;
		}
	else if (it->itype == ASN1_ITYPE_MSTRING)
		{
		utype = -1;
		if (!*pval)
			return;
		}
	else
		{
		utype = it->utype;
		if ((utype != V_ASN1_BOOLEAN) && !*pval)
			return;
		}

	switch(utype)
		{
		case V_ASN1_OBJECT:
		ASN1_OBJECT_free((ASN1_OBJECT *)*pval);
		break;

		case V_ASN1_BOOLEAN:
		if (it)
			*(ASN1_BOOLEAN *)pval = it->size;
		else
			*(ASN1_BOOLEAN *)pval = -1;
		return;

		case V_ASN1_NULL:
		break;

		case V_ASN1_ANY:
		ASN1_primitive_free(pval, NULL);
		OPENSSL_free(*pval);
		break;

		default:
		ASN1_STRING_free((ASN1_STRING *)*pval);
		*pval = NULL;
		break;
		}
	*pval = NULL;
	}


////////////////asn1_item_combine_free///////////////////////////ok

 void asn1_item_combine_free(ASN1_VALUE **pval, const ASN1_ITEM *it, int combine)
	{
	const ASN1_TEMPLATE *tt = NULL, *seqtt;
	const ASN1_EXTERN_FUNCS *ef;
	const ASN1_COMPAT_FUNCS *cf;
	const ASN1_AUX *aux = it->funcs;
	ASN1_aux_cb *asn1_cb;
	int i=0;

	if (!pval)
		return;
	if ((it->itype != ASN1_ITYPE_PRIMITIVE) && !*pval)
		return;
	if (aux && aux->asn1_cb)
		asn1_cb = aux->asn1_cb;
	else
		asn1_cb = 0;

	switch(it->itype)
		{

		case ASN1_ITYPE_PRIMITIVE:
		if (it->templates)
			ASN1_template_free(pval, it->templates);
		else
			ASN1_primitive_free(pval, it);
		break;

		case ASN1_ITYPE_MSTRING:
		ASN1_primitive_free(pval, it);
		break;

		case ASN1_ITYPE_CHOICE:
		if (asn1_cb)
			{
			i = asn1_cb(ASN1_OP_FREE_PRE, pval, it);
			if (i == 2)
				return;
			}
		//i = asn1_get_choice_selector(pval, it);//samyang delete
		if ((i >= 0) && (i < it->tcount))
			{
			ASN1_VALUE **pchval;
			tt = it->templates + i;
			pchval = asn1_get_field_ptr(pval, tt);
			ASN1_template_free(pchval, tt);
			}
		if (asn1_cb)
			asn1_cb(ASN1_OP_FREE_POST, pval, it);
		if (!combine)
			{
			OPENSSL_free(*pval);
			*pval = NULL;
			}
		break;

		case ASN1_ITYPE_COMPAT:
		cf = it->funcs;
		if (cf && cf->asn1_free)
			cf->asn1_free(*pval);
		break;

		case ASN1_ITYPE_EXTERN:
		ef = it->funcs;
		if (ef && ef->asn1_ex_free)
			ef->asn1_ex_free(pval, it);
		break;

		case ASN1_ITYPE_NDEF_SEQUENCE:
		case ASN1_ITYPE_SEQUENCE:
		//if (asn1_do_lock(pval, -1, it) > 0)//samyang delete
		//	return;
		if (asn1_cb)
			{
			i = asn1_cb(ASN1_OP_FREE_PRE, pval, it);
			if (i == 2)
				return;
			}
		asn1_enc_free(pval, it);

		tt = it->templates + it->tcount - 1;
		for (i = 0; i < it->tcount; tt--, i++)
			{
			ASN1_VALUE **pseqval;
			seqtt = asn1_do_adb(pval, tt, 0);
			if (!seqtt)
				continue;
			pseqval = asn1_get_field_ptr(pval, seqtt);
			ASN1_template_free(pseqval, seqtt);
			}
		if (asn1_cb)
			asn1_cb(ASN1_OP_FREE_POST, pval, it);
		if (!combine)
			{
			OPENSSL_free(*pval);
			*pval = NULL;
			}
		break;
		}
	}