diff options
Diffstat (limited to 'src/lib/libcrypto/asn1/f_int.c')
-rw-r--r-- | src/lib/libcrypto/asn1/f_int.c | 211 |
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 | |||
64 | int i2a_ASN1_INTEGER(bp, a) | ||
65 | BIO *bp; | ||
66 | ASN1_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); | ||
95 | err: | ||
96 | return(-1); | ||
97 | } | ||
98 | |||
99 | int a2i_ASN1_INTEGER(bp,bs,buf,size) | ||
100 | BIO *bp; | ||
101 | ASN1_INTEGER *bs; | ||
102 | char *buf; | ||
103 | int 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; | ||
203 | err: | ||
204 | if (0) | ||
205 | { | ||
206 | err_sl: | ||
207 | ASN1err(ASN1_F_A2I_ASN1_INTEGER,ASN1_R_SHORT_LINE); | ||
208 | } | ||
209 | return(ret); | ||
210 | } | ||
211 | |||