/* crypto/asn1/a_i2d_fp.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/asn1.h>

#ifndef NO_OLD_ASN1

# ifndef OPENSSL_NO_FP_API

int ASN1_i2d_fp(i2d_of_void *i2d, FILE *out, void *x)

{

    BIO *b;

    int ret;

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

        ASN1err(ASN1_F_ASN1_I2D_FP, ERR_R_BUF_LIB);

        return (0);

    }

    BIO_set_fp(b, out, BIO_NOCLOSE);

    ret = ASN1_i2d_bio(i2d, b, x);

    BIO_free(b);

    return (ret);

}

# endif

int ASN1_i2d_bio(i2d_of_void *i2d, BIO *out, unsigned char *x)

{

    char *b;

    unsigned char *p;

    int i, j = 0, n, ret = 1;

    n = i2d(x, NULL);

    b = (char *)OPENSSL_malloc(n);

    if (b == NULL) {

        ASN1err(ASN1_F_ASN1_I2D_BIO, ERR_R_MALLOC_FAILURE);

        return (0);

    }

    p = (unsigned char *)b;

    i2d(x, &p);

    for (;;) {

        i = BIO_write(out, &(b[j]), n);

        if (i == n)

            break;

        if (i <= 0) {

            ret = 0;

            break;

        }

        j += i;

        n -= i;

    }

    OPENSSL_free(b);

    return (ret);

}

#endif

#ifndef OPENSSL_NO_FP_API

int ASN1_item_i2d_fp(const ASN1_ITEM *it, FILE *out, void *x)

{

    BIO *b;

    int ret;

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

        ASN1err(ASN1_F_ASN1_ITEM_I2D_FP, ERR_R_BUF_LIB);

        return (0);

    }

    BIO_set_fp(b, out, BIO_NOCLOSE);

    ret = ASN1_item_i2d_bio(it, b, x);

    BIO_free(b);

    return (ret);

}

#endif

int ASN1_item_i2d_bio(const ASN1_ITEM *it, BIO *out, void *x)

{

    unsigned char *b = NULL;

    int i, j = 0, n, ret = 1;

    n = ASN1_item_i2d(x, &b, it);

    if (b == NULL) {

        ASN1err(ASN1_F_ASN1_ITEM_I2D_BIO, ERR_R_MALLOC_FAILURE);

        return (0);

    }

    for (;;) {

        i = BIO_write(out, &(b[j]), n);

        if (i == n)

            break;

        if (i <= 0) {

            ret = 0;

            break;

        }

        j += i;

        n -= i;

    }

    OPENSSL_free(b);

    return (ret);

}