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diff --git a/src/lib/libcrypto/asn1/f_string.c b/src/lib/libcrypto/asn1/f_string.c
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1/* crypto/asn1/f_string.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_STRING(bp, a, type)
65BIO *bp;
66ASN1_STRING *a;
67int type;
68 {
69 int i,n=0;
70 static char *h="0123456789ABCDEF";
71 char buf[2];
72
73 if (a == NULL) return(0);
74
75 if (a->length == 0)
76 {
77 if (BIO_write(bp,"0",1) != 1) goto err;
78 n=1;
79 }
80 else
81 {
82 for (i=0; i<a->length; i++)
83 {
84 if ((i != 0) && (i%35 == 0))
85 {
86 if (BIO_write(bp,"\\\n",2) != 2) goto err;
87 n+=2;
88 }
89 buf[0]=h[((unsigned char)a->data[i]>>4)&0x0f];
90 buf[1]=h[((unsigned char)a->data[i] )&0x0f];
91 if (BIO_write(bp,buf,2) != 2) goto err;
92 n+=2;
93 }
94 }
95 return(n);
96err:
97 return(-1);
98 }
99
100int a2i_ASN1_STRING(bp,bs,buf,size)
101BIO *bp;
102ASN1_STRING *bs;
103char *buf;
104int size;
105 {
106 int ret=0;
107 int i,j,k,m,n,again,bufsize;
108 unsigned char *s=NULL,*sp;
109 unsigned char *bufp;
110 int num=0,slen=0,first=1;
111
112 bufsize=BIO_gets(bp,buf,size);
113 for (;;)
114 {
115 if (bufsize < 1)
116 {
117 if (first)
118 break;
119 else
120 goto err_sl;
121 }
122 first=0;
123
124 i=bufsize;
125 if (buf[i-1] == '\n') buf[--i]='\0';
126 if (i == 0) goto err_sl;
127 if (buf[i-1] == '\r') buf[--i]='\0';
128 if (i == 0) goto err_sl;
129 again=(buf[i-1] == '\\');
130
131 for (j=i-1; j>0; j--)
132 {
133 if (!( ((buf[j] >= '0') && (buf[j] <= '9')) ||
134 ((buf[j] >= 'a') && (buf[j] <= 'f')) ||
135 ((buf[j] >= 'A') && (buf[j] <= 'F'))))
136 {
137 i=j;
138 break;
139 }
140 }
141 buf[i]='\0';
142 /* We have now cleared all the crap off the end of the
143 * line */
144 if (i < 2) goto err_sl;
145
146 bufp=(unsigned char *)buf;
147
148 k=0;
149 i-=again;
150 if (i%2 != 0)
151 {
152 ASN1err(ASN1_F_A2I_ASN1_STRING,ASN1_R_ODD_NUMBER_OF_CHARS);
153 goto err;
154 }
155 i/=2;
156 if (num+i > slen)
157 {
158 if (s == NULL)
159 sp=(unsigned char *)Malloc(
160 (unsigned int)num+i*2);
161 else
162 sp=(unsigned char *)Realloc(s,
163 (unsigned int)num+i*2);
164 if (sp == NULL)
165 {
166 ASN1err(ASN1_F_A2I_ASN1_STRING,ERR_R_MALLOC_FAILURE);
167 if (s != NULL) Free((char *)s);
168 goto err;
169 }
170 s=sp;
171 slen=num+i*2;
172 }
173 for (j=0; j<i; j++,k+=2)
174 {
175 for (n=0; n<2; n++)
176 {
177 m=bufp[k+n];
178 if ((m >= '0') && (m <= '9'))
179 m-='0';
180 else if ((m >= 'a') && (m <= 'f'))
181 m=m-'a'+10;
182 else if ((m >= 'A') && (m <= 'F'))
183 m=m-'A'+10;
184 else
185 {
186 ASN1err(ASN1_F_A2I_ASN1_STRING,ASN1_R_NON_HEX_CHARACTERS);
187 goto err;
188 }
189 s[num+j]<<=4;
190 s[num+j]|=m;
191 }
192 }
193 num+=i;
194 if (again)
195 bufsize=BIO_gets(bp,buf,size);
196 else
197 break;
198 }
199 bs->length=num;
200 bs->data=s;
201 ret=1;
202err:
203 if (0)
204 {
205err_sl:
206 ASN1err(ASN1_F_A2I_ASN1_STRING,ASN1_R_SHORT_LINE);
207 }
208 return(ret);
209 }
210
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