1 /* crypto/asn1/a_i2d_fp.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
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 (tjh@cryptsoft.com).
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 (eay@cryptsoft.com)"
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 (tjh@cryptsoft.com)"
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 {
74 ASN1err(ASN1_F_ASN1_I2D_FP,ERR_R_BUF_LIB);
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 {
94 ASN1err(ASN1_F_ASN1_I2D_BIO,ERR_R_MALLOC_FAILURE);
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 {
127 ASN1err(ASN1_F_ASN1_ITEM_I2D_FP,ERR_R_BUF_LIB);
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 {
145 ASN1err(ASN1_F_ASN1_ITEM_I2D_BIO,ERR_R_MALLOC_FAILURE);
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 }