/*
 * isasu.c -- implements issuer and subject methods
 *
 * (c) 2001 Dr. Andreas Mueller, Beratung und Entwicklung
 *
 * $Id: isasu.c,v 1.4 2002/02/19 23:40:06 afm Exp $
 */
#include <openssl/x509.h>
#include <openssl/asn1_mac.h>
#include <openssl/err.h>
#include <isasu.h>
#include <init.h>
#include <unistd.h>
#include <fcntl.h>
#include <openscep_err.h>

/*
 * the methods in this file are based on the similar functions for the
 * PKCS7_ISSUER_AND_SERIAL structure already present in OpenSSL. The
 * methods to deal with BIOs are generated in the header file according
 * to the same pattern. Note that the error messages generated by these
 * functions are currently thos for PKCS7_ISSUER_AND_SERIAL, which is
 * of course wrong, but quick to implement.
 */

int	i2d_issuer_and_subject(issuer_and_subject_t *a, unsigned char **pp) {
	M_ASN1_I2D_vars(a);
	M_ASN1_I2D_len(a->issuer, i2d_X509_NAME);
	M_ASN1_I2D_len(a->subject, i2d_X509_NAME);
	M_ASN1_I2D_seq_total();
	M_ASN1_I2D_put(a->issuer, i2d_X509_NAME);
	M_ASN1_I2D_put(a->subject, i2d_X509_NAME);
	M_ASN1_I2D_finish();
}

issuer_and_subject_t	*d2i_issuer_and_subject(issuer_and_subject_t **a,
	unsigned char **pp, long length) {
	M_ASN1_D2I_vars(a, issuer_and_subject_t *,issuer_and_subject_new);
	M_ASN1_D2I_Init();
	M_ASN1_D2I_start_sequence();
	M_ASN1_D2I_get(ret->issuer, d2i_X509_NAME);
	M_ASN1_D2I_get(ret->subject, d2i_X509_NAME);
	M_ASN1_D2I_Finish(a,issuer_and_subject_free,
		OPENSCEP_F_D2I_ISSUER_AND_SUBJECT);
}

issuer_and_subject_t	*issuer_and_subject_new(void) {
	issuer_and_subject_t	*ret = NULL;
	ASN1_CTX		c;
	M_ASN1_New_Malloc(ret, issuer_and_subject_t);
	M_ASN1_New(ret->issuer, X509_NAME_new);
	M_ASN1_New(ret->subject, X509_NAME_new);
	return ret;
	M_ASN1_New_Error(OPENSCEP_F_ISSUER_AND_SUBJECT_NEW);
}

void	issuer_and_subject_free(issuer_and_subject_t *isasu) {
	if (NULL == isasu) return;
	X509_NAME_free(isasu->issuer);
	X509_NAME_free(isasu->subject);
	OPENSSL_free(isasu);
}