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031e5cce SM |
1 | /* crypto/asn1/a_print.c */ |
2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
3 | * All rights reserved. | |
3e575651 | 4 | * |
031e5cce SM |
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.] | |
3e575651 SL |
57 | */ |
58 | ||
59 | #include <stdio.h> | |
031e5cce | 60 | #include "cryptlib.h" |
3e575651 SL |
61 | #include <openssl/asn1.h> |
62 | ||
63 | int ASN1_PRINTABLE_type(const unsigned char *s, int len) | |
d3819813 MTL |
64 | { |
65 | int c; | |
66 | int ia5 = 0; | |
67 | int t61 = 0; | |
3e575651 | 68 | |
d3819813 MTL |
69 | if (len <= 0) |
70 | len = -1; | |
71 | if (s == NULL) | |
72 | return (V_ASN1_PRINTABLESTRING); | |
3e575651 | 73 | |
d3819813 MTL |
74 | while ((*s) && (len-- != 0)) { |
75 | c = *(s++); | |
3e575651 | 76 | #ifndef CHARSET_EBCDIC |
d3819813 MTL |
77 | if (!(((c >= 'a') && (c <= 'z')) || |
78 | ((c >= 'A') && (c <= 'Z')) || | |
031e5cce | 79 | (c == ' ') || |
d3819813 MTL |
80 | ((c >= '0') && (c <= '9')) || |
81 | (c == ' ') || (c == '\'') || | |
82 | (c == '(') || (c == ')') || | |
83 | (c == '+') || (c == ',') || | |
84 | (c == '-') || (c == '.') || | |
85 | (c == '/') || (c == ':') || (c == '=') || (c == '?'))) | |
86 | ia5 = 1; | |
87 | if (c & 0x80) | |
88 | t61 = 1; | |
3e575651 | 89 | #else |
d3819813 MTL |
90 | if (!isalnum(c) && (c != ' ') && strchr("'()+,-./:=?", c) == NULL) |
91 | ia5 = 1; | |
92 | if (os_toascii[c] & 0x80) | |
93 | t61 = 1; | |
3e575651 | 94 | #endif |
d3819813 MTL |
95 | } |
96 | if (t61) | |
97 | return (V_ASN1_T61STRING); | |
98 | if (ia5) | |
99 | return (V_ASN1_IA5STRING); | |
100 | return (V_ASN1_PRINTABLESTRING); | |
101 | } | |
3e575651 SL |
102 | |
103 | int ASN1_UNIVERSALSTRING_to_string(ASN1_UNIVERSALSTRING *s) | |
d3819813 MTL |
104 | { |
105 | int i; | |
106 | unsigned char *p; | |
3e575651 | 107 | |
d3819813 MTL |
108 | if (s->type != V_ASN1_UNIVERSALSTRING) |
109 | return (0); | |
110 | if ((s->length % 4) != 0) | |
111 | return (0); | |
112 | p = s->data; | |
113 | for (i = 0; i < s->length; i += 4) { | |
114 | if ((p[0] != '\0') || (p[1] != '\0') || (p[2] != '\0')) | |
115 | break; | |
116 | else | |
117 | p += 4; | |
118 | } | |
119 | if (i < s->length) | |
120 | return (0); | |
121 | p = s->data; | |
122 | for (i = 3; i < s->length; i += 4) { | |
123 | *(p++) = s->data[i]; | |
124 | } | |
125 | *(p) = '\0'; | |
126 | s->length /= 4; | |
127 | s->type = ASN1_PRINTABLE_type(s->data, s->length); | |
128 | return (1); | |
129 | } |