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      1 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com)
      2  * All rights reserved.
      3  *
      4  * This package is an SSL implementation written
      5  * by Eric Young (eay (at) cryptsoft.com).
      6  * The implementation was written so as to conform with Netscapes SSL.
      7  *
      8  * This library is free for commercial and non-commercial use as long as
      9  * the following conditions are aheared to.  The following conditions
     10  * apply to all code found in this distribution, be it the RC4, RSA,
     11  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
     12  * included with this distribution is covered by the same copyright terms
     13  * except that the holder is Tim Hudson (tjh (at) cryptsoft.com).
     14  *
     15  * Copyright remains Eric Young's, and as such any Copyright notices in
     16  * the code are not to be removed.
     17  * If this package is used in a product, Eric Young should be given attribution
     18  * as the author of the parts of the library used.
     19  * This can be in the form of a textual message at program startup or
     20  * in documentation (online or textual) provided with the package.
     21  *
     22  * Redistribution and use in source and binary forms, with or without
     23  * modification, are permitted provided that the following conditions
     24  * are met:
     25  * 1. Redistributions of source code must retain the copyright
     26  *    notice, this list of conditions and the following disclaimer.
     27  * 2. Redistributions in binary form must reproduce the above copyright
     28  *    notice, this list of conditions and the following disclaimer in the
     29  *    documentation and/or other materials provided with the distribution.
     30  * 3. All advertising materials mentioning features or use of this software
     31  *    must display the following acknowledgement:
     32  *    "This product includes cryptographic software written by
     33  *     Eric Young (eay (at) cryptsoft.com)"
     34  *    The word 'cryptographic' can be left out if the rouines from the library
     35  *    being used are not cryptographic related :-).
     36  * 4. If you include any Windows specific code (or a derivative thereof) from
     37  *    the apps directory (application code) you must include an acknowledgement:
     38  *    "This product includes software written by Tim Hudson (tjh (at) cryptsoft.com)"
     39  *
     40  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
     41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     50  * SUCH DAMAGE.
     51  *
     52  * The licence and distribution terms for any publically available version or
     53  * derivative of this code cannot be changed.  i.e. this code cannot simply be
     54  * copied and put under another distribution licence
     55  * [including the GNU Public Licence.] */
     56 
     57 #include <openssl/asn1.h>
     58 
     59 #include <openssl/err.h>
     60 #include <openssl/mem.h>
     61 
     62 
     63 int ASN1_i2d_fp(i2d_of_void *i2d, FILE *out, void *x)
     64         {
     65         BIO *b;
     66         int ret;
     67 
     68         if ((b=BIO_new(BIO_s_file())) == NULL)
     69 		{
     70 		OPENSSL_PUT_ERROR(ASN1, ERR_R_BUF_LIB);
     71                 return(0);
     72 		}
     73         BIO_set_fp(b,out,BIO_NOCLOSE);
     74         ret=ASN1_i2d_bio(i2d,b,x);
     75         BIO_free(b);
     76         return(ret);
     77         }
     78 
     79 int ASN1_i2d_bio(i2d_of_void *i2d, BIO *out, void *x)
     80 	{
     81 	char *b;
     82 	unsigned char *p;
     83 	int i,j=0,n,ret=1;
     84 
     85 	n=i2d(x,NULL);
     86 	b=(char *)OPENSSL_malloc(n);
     87 	if (b == NULL)
     88 		{
     89 		OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
     90 		return(0);
     91 		}
     92 
     93 	p=(unsigned char *)b;
     94 	i2d(x,&p);
     95 
     96 	for (;;)
     97 		{
     98 		i=BIO_write(out,&(b[j]),n);
     99 		if (i == n) break;
    100 		if (i <= 0)
    101 			{
    102 			ret=0;
    103 			break;
    104 			}
    105 		j+=i;
    106 		n-=i;
    107 		}
    108 	OPENSSL_free(b);
    109 	return(ret);
    110 	}
    111 
    112 int ASN1_item_i2d_fp(const ASN1_ITEM *it, FILE *out, void *x)
    113         {
    114         BIO *b;
    115         int ret;
    116 
    117         if ((b=BIO_new(BIO_s_file())) == NULL)
    118 		{
    119 		OPENSSL_PUT_ERROR(ASN1, ERR_R_BUF_LIB);
    120                 return(0);
    121 		}
    122         BIO_set_fp(b,out,BIO_NOCLOSE);
    123         ret=ASN1_item_i2d_bio(it,b,x);
    124         BIO_free(b);
    125         return(ret);
    126         }
    127 
    128 int ASN1_item_i2d_bio(const ASN1_ITEM *it, BIO *out, void *x)
    129 	{
    130 	unsigned char *b = NULL;
    131 	int i,j=0,n,ret=1;
    132 
    133 	n = ASN1_item_i2d(x, &b, it);
    134 	if (b == NULL)
    135 		{
    136 		OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
    137 		return(0);
    138 		}
    139 
    140 	for (;;)
    141 		{
    142 		i=BIO_write(out,&(b[j]),n);
    143 		if (i == n) break;
    144 		if (i <= 0)
    145 			{
    146 			ret=0;
    147 			break;
    148 			}
    149 		j+=i;
    150 		n-=i;
    151 		}
    152 	OPENSSL_free(b);
    153 	return(ret);
    154 	}
    155