| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved. |
| 3 | * |
| 4 | * Licensed under the OpenSSL license (the "License"). You may not use |
| 5 | * this file except in compliance with the License. You can obtain a copy |
| 6 | * in the file LICENSE in the source distribution or at |
| 7 | * https://www.openssl.org/source/license.html |
| 8 | */ |
| 9 | |
| 10 | #include <stdio.h> |
| 11 | #include "crypto/ctype.h" |
| 12 | #include "internal/cryptlib.h" |
| 13 | #include <openssl/asn1.h> |
| 14 | |
| 15 | int ASN1_PRINTABLE_type(const unsigned char *s, int len) |
| 16 | { |
| 17 | int c; |
| 18 | int ia5 = 0; |
| 19 | int t61 = 0; |
| 20 | |
| 21 | if (s == NULL) |
| 22 | return V_ASN1_PRINTABLESTRING; |
| 23 | |
| 24 | if (len < 0) |
| 25 | len = strlen((const char *)s); |
| 26 | |
| 27 | while (len-- > 0) { |
| 28 | c = *(s++); |
| 29 | if (!ossl_isasn1print(c)) |
| 30 | ia5 = 1; |
| 31 | if (!ossl_isascii(c)) |
| 32 | t61 = 1; |
| 33 | } |
| 34 | if (t61) |
| 35 | return V_ASN1_T61STRING; |
| 36 | if (ia5) |
| 37 | return V_ASN1_IA5STRING; |
| 38 | return V_ASN1_PRINTABLESTRING; |
| 39 | } |
| 40 | |
| 41 | int ASN1_UNIVERSALSTRING_to_string(ASN1_UNIVERSALSTRING *s) |
| 42 | { |
| 43 | int i; |
| 44 | unsigned char *p; |
| 45 | |
| 46 | if (s->type != V_ASN1_UNIVERSALSTRING) |
| 47 | return 0; |
| 48 | if ((s->length % 4) != 0) |
| 49 | return 0; |
| 50 | p = s->data; |
| 51 | for (i = 0; i < s->length; i += 4) { |
| 52 | if ((p[0] != '\0') || (p[1] != '\0') || (p[2] != '\0')) |
| 53 | break; |
| 54 | else |
| 55 | p += 4; |
| 56 | } |
| 57 | if (i < s->length) |
| 58 | return 0; |
| 59 | p = s->data; |
| 60 | for (i = 3; i < s->length; i += 4) { |
| 61 | *(p++) = s->data[i]; |
| 62 | } |
| 63 | *(p) = '\0'; |
| 64 | s->length /= 4; |
| 65 | s->type = ASN1_PRINTABLE_type(s->data, s->length); |
| 66 | return 1; |
| 67 | } |
| 68 | |
| 69 | int ASN1_STRING_print(BIO *bp, const ASN1_STRING *v) |
| 70 | { |
| 71 | int i, n; |
| 72 | char buf[80]; |
| 73 | const char *p; |
| 74 | |
| 75 | if (v == NULL) |
| 76 | return 0; |
| 77 | n = 0; |
| 78 | p = (const char *)v->data; |
| 79 | for (i = 0; i < v->length; i++) { |
| 80 | if ((p[i] > '~') || ((p[i] < ' ') && |
| 81 | (p[i] != '\n') && (p[i] != '\r'))) |
| 82 | buf[n] = '.'; |
| 83 | else |
| 84 | buf[n] = p[i]; |
| 85 | n++; |
| 86 | if (n >= 80) { |
| 87 | if (BIO_write(bp, buf, n) <= 0) |
| 88 | return 0; |
| 89 | n = 0; |
| 90 | } |
| 91 | } |
| 92 | if (n > 0) |
| 93 | if (BIO_write(bp, buf, n) <= 0) |
| 94 | return 0; |
| 95 | return 1; |
| 96 | } |