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authorryker <>1998-10-05 20:13:14 +0000
committerryker <>1998-10-05 20:13:14 +0000
commitaeeae06a79815dc190061534d47236cec09f9e32 (patch)
tree851692b9c2f9c04f077666855641900f19fdb217 /src/lib/libcrypto/asn1/f_int.c
parenta4f79641824cbf9f60ca9d1168d1fcc46717a82a (diff)
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Import of SSLeay-0.9.0b with RSA and IDEA stubbed + OpenBSD build
functionality for shared libs. Note that routines such as sslv2_init and friends that use RSA will not work due to lack of RSA in this library. Needs documentation and help from ports for easy upgrade to full functionality where legally possible.
Diffstat (limited to 'src/lib/libcrypto/asn1/f_int.c')
-rw-r--r--src/lib/libcrypto/asn1/f_int.c211
1 files changed, 211 insertions, 0 deletions
diff --git a/src/lib/libcrypto/asn1/f_int.c b/src/lib/libcrypto/asn1/f_int.c
new file mode 100644
index 0000000000..4817c45cb7
--- /dev/null
+++ b/src/lib/libcrypto/asn1/f_int.c
@@ -0,0 +1,211 @@
1/* crypto/asn1/f_int.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 "buffer.h"
62#include "x509.h"
63
64int i2a_ASN1_INTEGER(bp, a)
65BIO *bp;
66ASN1_INTEGER *a;
67 {
68 int i,n=0;
69 static char *h="0123456789ABCDEF";
70 char buf[2];
71
72 if (a == NULL) return(0);
73
74 if (a->length == 0)
75 {
76 if (BIO_write(bp,"00",2) != 2) goto err;
77 n=2;
78 }
79 else
80 {
81 for (i=0; i<a->length; i++)
82 {
83 if ((i != 0) && (i%35 == 0))
84 {
85 if (BIO_write(bp,"\\\n",2) != 2) goto err;
86 n+=2;
87 }
88 buf[0]=h[((unsigned char)a->data[i]>>4)&0x0f];
89 buf[1]=h[((unsigned char)a->data[i] )&0x0f];
90 if (BIO_write(bp,buf,2) != 2) goto err;
91 n+=2;
92 }
93 }
94 return(n);
95err:
96 return(-1);
97 }
98
99int a2i_ASN1_INTEGER(bp,bs,buf,size)
100BIO *bp;
101ASN1_INTEGER *bs;
102char *buf;
103int size;
104 {
105 int ret=0;
106 int i,j,k,m,n,again,bufsize;
107 unsigned char *s=NULL,*sp;
108 unsigned char *bufp;
109 int num=0,slen=0,first=1;
110
111 bs->type=V_ASN1_INTEGER;
112
113 bufsize=BIO_gets(bp,buf,size);
114 for (;;)
115 {
116 if (bufsize < 1) goto err_sl;
117 i=bufsize;
118 if (buf[i-1] == '\n') buf[--i]='\0';
119 if (i == 0) goto err_sl;
120 if (buf[i-1] == '\r') buf[--i]='\0';
121 if (i == 0) goto err_sl;
122 again=(buf[i-1] == '\\');
123
124 for (j=0; j<i; j++)
125 {
126 if (!( ((buf[j] >= '0') && (buf[j] <= '9')) ||
127 ((buf[j] >= 'a') && (buf[j] <= 'f')) ||
128 ((buf[j] >= 'A') && (buf[j] <= 'F'))))
129 {
130 i=j;
131 break;
132 }
133 }
134 buf[i]='\0';
135 /* We have now cleared all the crap off the end of the
136 * line */
137 if (i < 2) goto err_sl;
138
139 bufp=(unsigned char *)buf;
140 if (first)
141 {
142 first=0;
143 if ((bufp[0] == '0') && (buf[1] == '0'))
144 {
145 bufp+=2;
146 i-=2;
147 }
148 }
149 k=0;
150 i-=again;
151 if (i%2 != 0)
152 {
153 ASN1err(ASN1_F_A2I_ASN1_INTEGER,ASN1_R_ODD_NUMBER_OF_CHARS);
154 goto err;
155 }
156 i/=2;
157 if (num+i > slen)
158 {
159 if (s == NULL)
160 sp=(unsigned char *)Malloc(
161 (unsigned int)num+i*2);
162 else
163 sp=(unsigned char *)Realloc(s,
164 (unsigned int)num+i*2);
165 if (sp == NULL)
166 {
167 ASN1err(ASN1_F_A2I_ASN1_INTEGER,ERR_R_MALLOC_FAILURE);
168 if (s != NULL) Free((char *)s);
169 goto err;
170 }
171 s=sp;
172 slen=num+i*2;
173 }
174 for (j=0; j<i; j++,k+=2)
175 {
176 for (n=0; n<2; n++)
177 {
178 m=bufp[k+n];
179 if ((m >= '0') && (m <= '9'))
180 m-='0';
181 else if ((m >= 'a') && (m <= 'f'))
182 m=m-'a'+10;
183 else if ((m >= 'A') && (m <= 'F'))
184 m=m-'A'+10;
185 else
186 {
187 ASN1err(ASN1_F_A2I_ASN1_INTEGER,ASN1_R_NON_HEX_CHARACTERS);
188 goto err;
189 }
190 s[num+j]<<=4;
191 s[num+j]|=m;
192 }
193 }
194 num+=i;
195 if (again)
196 bufsize=BIO_gets(bp,buf,size);
197 else
198 break;
199 }
200 bs->length=num;
201 bs->data=s;
202 ret=1;
203err:
204 if (0)
205 {
206err_sl:
207 ASN1err(ASN1_F_A2I_ASN1_INTEGER,ASN1_R_SHORT_LINE);
208 }
209 return(ret);
210 }
211