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a_i2d_fp.c
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1 /* crypto/asn1/a_i2d_fp.c */
2 /* Copyright (C) 1995-1998 Eric Young ([email protected])
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young ([email protected]).
7  * The implementation was written so as to conform with Netscapes SSL.
8  *
9  * This library is free for commercial and non-commercial use as long as
10  * the following conditions are aheared to. The following conditions
11  * apply to all code found in this distribution, be it the RC4, RSA,
12  * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13  * included with this distribution is covered by the same copyright terms
14  * except that the holder is Tim Hudson ([email protected]).
15  *
16  * Copyright remains Eric Young's, and as such any Copyright notices in
17  * the code are not to be removed.
18  * If this package is used in a product, Eric Young should be given attribution
19  * as the author of the parts of the library used.
20  * This can be in the form of a textual message at program startup or
21  * in documentation (online or textual) provided with the package.
22  *
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the copyright
27  * notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  * notice, this list of conditions and the following disclaimer in the
30  * documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  * must display the following acknowledgement:
33  * "This product includes cryptographic software written by
34  * Eric Young ([email protected])"
35  * The word 'cryptographic' can be left out if the rouines from the library
36  * being used are not cryptographic related :-).
37  * 4. If you include any Windows specific code (or a derivative thereof) from
38  * the apps directory (application code) you must include an acknowledgement:
39  * "This product includes software written by Tim Hudson ([email protected])"
40  *
41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  *
53  * The licence and distribution terms for any publically available version or
54  * derivative of this code cannot be changed. i.e. this code cannot simply be
55  * copied and put under another distribution licence
56  * [including the GNU Public Licence.]
57  */
58 
59 #include <stdio.h>
60 #include "cryptlib.h"
61 #include <openssl/buffer.h>
62 #include <openssl/asn1.h>
63 
64 #ifndef NO_OLD_ASN1
65 
66 #ifndef OPENSSL_NO_FP_API
67 int ASN1_i2d_fp(i2d_of_void *i2d, FILE *out, void *x)
68  {
69  BIO *b;
70  int ret;
71 
72  if ((b=BIO_new(BIO_s_file())) == NULL)
73  {
75  return(0);
76  }
77  BIO_set_fp(b,out,BIO_NOCLOSE);
78  ret=ASN1_i2d_bio(i2d,b,x);
79  BIO_free(b);
80  return(ret);
81  }
82 #endif
83 
84 int ASN1_i2d_bio(i2d_of_void *i2d, BIO *out, unsigned char *x)
85  {
86  char *b;
87  unsigned char *p;
88  int i,j=0,n,ret=1;
89 
90  n=i2d(x,NULL);
91  b=(char *)OPENSSL_malloc(n);
92  if (b == NULL)
93  {
95  return(0);
96  }
97 
98  p=(unsigned char *)b;
99  i2d(x,&p);
100 
101  for (;;)
102  {
103  i=BIO_write(out,&(b[j]),n);
104  if (i == n) break;
105  if (i <= 0)
106  {
107  ret=0;
108  break;
109  }
110  j+=i;
111  n-=i;
112  }
113  OPENSSL_free(b);
114  return(ret);
115  }
116 
117 #endif
118 
119 #ifndef OPENSSL_NO_FP_API
120 int ASN1_item_i2d_fp(const ASN1_ITEM *it, FILE *out, void *x)
121  {
122  BIO *b;
123  int ret;
124 
125  if ((b=BIO_new(BIO_s_file())) == NULL)
126  {
128  return(0);
129  }
130  BIO_set_fp(b,out,BIO_NOCLOSE);
131  ret=ASN1_item_i2d_bio(it,b,x);
132  BIO_free(b);
133  return(ret);
134  }
135 #endif
136 
137 int ASN1_item_i2d_bio(const ASN1_ITEM *it, BIO *out, void *x)
138  {
139  unsigned char *b = NULL;
140  int i,j=0,n,ret=1;
141 
142  n = ASN1_item_i2d(x, &b, it);
143  if (b == NULL)
144  {
146  return(0);
147  }
148 
149  for (;;)
150  {
151  i=BIO_write(out,&(b[j]),n);
152  if (i == n) break;
153  if (i <= 0)
154  {
155  ret=0;
156  break;
157  }
158  j+=i;
159  n-=i;
160  }
161  OPENSSL_free(b);
162  return(ret);
163  }