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f_enum.c

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1/* $OpenBSD: f_enum.c,v 1.16 2018/04/25 11:48:21 tb Exp $ */-
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-
61#include <openssl/asn1.h>-
62#include <openssl/buffer.h>-
63#include <openssl/err.h>-
64-
65/* Based on a_int.c: equivalent ENUMERATED functions */-
66-
67int-
68i2a_ASN1_ENUMERATED(BIO *bp, const ASN1_ENUMERATED *a)-
69{-
70 int i, n = 0;-
71 static const char h[] = "0123456789ABCDEF";-
72 char buf[2];-
73-
74 if (a == NULL)
a == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
75 return (0);
never executed: return (0);
0
76-
77 if (a->length == 0) {
a->length == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
78 if (BIO_write(bp, "00", 2) != 2)
BIO_write(bp, "00", 2) != 2Description
TRUEnever evaluated
FALSEnever evaluated
0
79 goto err;
never executed: goto err;
0
80 n = 2;-
81 } else {
never executed: end of block
0
82 for (i = 0; i < a->length; i++) {
i < a->lengthDescription
TRUEnever evaluated
FALSEnever evaluated
0
83 if ((i != 0) && (i % 35 == 0)) {
(i != 0)Description
TRUEnever evaluated
FALSEnever evaluated
(i % 35 == 0)Description
TRUEnever evaluated
FALSEnever evaluated
0
84 if (BIO_write(bp, "\\\n", 2) != 2)
BIO_write(bp, "\\\n", 2) != 2Description
TRUEnever evaluated
FALSEnever evaluated
0
85 goto err;
never executed: goto err;
0
86 n += 2;-
87 }
never executed: end of block
0
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)
BIO_write(bp, buf, 2) != 2Description
TRUEnever evaluated
FALSEnever evaluated
0
91 goto err;
never executed: goto err;
0
92 n += 2;-
93 }
never executed: end of block
0
94 }
never executed: end of block
0
95 return (n);
never executed: return (n);
0
96-
97err:-
98 return (-1);
never executed: return (-1);
0
99}-
100-
101int-
102a2i_ASN1_ENUMERATED(BIO *bp, ASN1_ENUMERATED *bs, char *buf, int size)-
103{-
104 int ret = 0;-
105 int i, j,k, m,n, again, bufsize;-
106 unsigned char *s = NULL, *sp;-
107 unsigned char *bufp;-
108 int first = 1;-
109 size_t num = 0, slen = 0;-
110-
111 bs->type = V_ASN1_ENUMERATED;-
112-
113 bufsize = BIO_gets(bp, buf, size);-
114 for (;;) {-
115 if (bufsize < 1)
bufsize < 1Description
TRUEnever evaluated
FALSEnever evaluated
0
116 goto err_sl;
never executed: goto err_sl;
0
117 i = bufsize;-
118 if (buf[i-1] == '\n')
buf[i-1] == '\n'Description
TRUEnever evaluated
FALSEnever evaluated
0
119 buf[--i] = '\0';
never executed: buf[--i] = '\0';
0
120 if (i == 0)
i == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
121 goto err_sl;
never executed: goto err_sl;
0
122 if (buf[i-1] == '\r')
buf[i-1] == '\r'Description
TRUEnever evaluated
FALSEnever evaluated
0
123 buf[--i] = '\0';
never executed: buf[--i] = '\0';
0
124 if (i == 0)
i == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
125 goto err_sl;
never executed: goto err_sl;
0
126 again = (buf[i - 1] == '\\');-
127-
128 for (j = 0; j < i; j++) {
j < iDescription
TRUEnever evaluated
FALSEnever evaluated
0
129 if (!(((buf[j] >= '0') && (buf[j] <= '9')) ||
(buf[j] >= '0')Description
TRUEnever evaluated
FALSEnever evaluated
(buf[j] <= '9')Description
TRUEnever evaluated
FALSEnever evaluated
0
130 ((buf[j] >= 'a') && (buf[j] <= 'f')) ||
(buf[j] >= 'a')Description
TRUEnever evaluated
FALSEnever evaluated
(buf[j] <= 'f')Description
TRUEnever evaluated
FALSEnever evaluated
0
131 ((buf[j] >= 'A') && (buf[j] <= 'F')))) {
(buf[j] >= 'A')Description
TRUEnever evaluated
FALSEnever evaluated
(buf[j] <= 'F')Description
TRUEnever evaluated
FALSEnever evaluated
0
132 i = j;-
133 break;
never executed: break;
0
134 }-
135 }
never executed: end of block
0
136 buf[i] = '\0';-
137 /* We have now cleared all the crap off the end of the-
138 * line */-
139 if (i < 2)
i < 2Description
TRUEnever evaluated
FALSEnever evaluated
0
140 goto err_sl;
never executed: goto err_sl;
0
141-
142 bufp = (unsigned char *)buf;-
143 if (first) {
firstDescription
TRUEnever evaluated
FALSEnever evaluated
0
144 first = 0;-
145 if ((bufp[0] == '0') && (buf[1] == '0')) {
(bufp[0] == '0')Description
TRUEnever evaluated
FALSEnever evaluated
(buf[1] == '0')Description
TRUEnever evaluated
FALSEnever evaluated
0
146 bufp += 2;-
147 i -= 2;-
148 }
never executed: end of block
0
149 }
never executed: end of block
0
150 k = 0;-
151 i -= again;-
152 if (i % 2 != 0) {
i % 2 != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
153 ASN1error(ASN1_R_ODD_NUMBER_OF_CHARS);-
154 goto err;
never executed: goto err;
0
155 }-
156 i /= 2;-
157 if (num + i > slen) {
num + i > slenDescription
TRUEnever evaluated
FALSEnever evaluated
0
158 sp = realloc(s, num + i);-
159 if (sp == NULL) {
sp == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
160 ASN1error(ERR_R_MALLOC_FAILURE);-
161 goto err;
never executed: goto err;
0
162 }-
163 s = sp;-
164 slen = num + i;-
165 }
never executed: end of block
0
166 for (j = 0; j < i; j++, k += 2) {
j < iDescription
TRUEnever evaluated
FALSEnever evaluated
0
167 for (n = 0; n < 2; n++) {
n < 2Description
TRUEnever evaluated
FALSEnever evaluated
0
168 m = bufp[k + n];-
169 if ((m >= '0') && (m <= '9'))
(m >= '0')Description
TRUEnever evaluated
FALSEnever evaluated
(m <= '9')Description
TRUEnever evaluated
FALSEnever evaluated
0
170 m -= '0';
never executed: m -= '0';
0
171 else if ((m >= 'a') && (m <= 'f'))
(m >= 'a')Description
TRUEnever evaluated
FALSEnever evaluated
(m <= 'f')Description
TRUEnever evaluated
FALSEnever evaluated
0
172 m = m - 'a' + 10;
never executed: m = m - 'a' + 10;
0
173 else if ((m >= 'A') && (m <= 'F'))
(m >= 'A')Description
TRUEnever evaluated
FALSEnever evaluated
(m <= 'F')Description
TRUEnever evaluated
FALSEnever evaluated
0
174 m = m - 'A' + 10;
never executed: m = m - 'A' + 10;
0
175 else {-
176 ASN1error(ASN1_R_NON_HEX_CHARACTERS);-
177 goto err;
never executed: goto err;
0
178 }-
179 s[num + j] <<= 4;-
180 s[num + j] |= m;-
181 }
never executed: end of block
0
182 }
never executed: end of block
0
183 num += i;-
184 if (again)
againDescription
TRUEnever evaluated
FALSEnever evaluated
0
185 bufsize = BIO_gets(bp, buf, size);
never executed: bufsize = BIO_gets(bp, buf, size);
0
186 else-
187 break;
never executed: break;
0
188 }-
189 bs->length = num;-
190 bs->data = s;-
191 return (1);
never executed: return (1);
0
192-
193err_sl:-
194 ASN1error(ASN1_R_SHORT_LINE);-
195err:
code before this statement never executed: err:
0
196 free(s);-
197 return (ret);
never executed: return (ret);
0
198}-
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