diff options
author | Beat Bolli <dev@drbeat.li> | 2021-02-16 19:15:45 +0100 |
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committer | Pauli <ppzgs1@gmail.com> | 2021-03-18 14:12:48 +1000 |
commit | 90165623a50fa30454c4a2f9bece7af2c611b731 (patch) | |
tree | d3a0f643a8087450cfd8465a86e6b055ca716f81 | |
parent | 11c7874d0c055450783252e68d97dc1de7151dc3 (diff) |
ASN1: add an internal header to validate Unicode ranges
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14185)
-rw-r--r-- | include/internal/unicode.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/internal/unicode.h b/include/internal/unicode.h new file mode 100644 index 0000000000..3dcdcd2c89 --- /dev/null +++ b/include/internal/unicode.h @@ -0,0 +1,31 @@ +/* + * Copyright 2021 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the Apache License 2.0 (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#ifndef OSSL_INTERNAL_UNICODE_H +# define OSSL_INTERNAL_UNICODE_H +# pragma once + +typedef enum { + SURROGATE_MIN = 0xd800UL, + SURROGATE_MAX = 0xdfffUL, + UNICODE_MAX = 0x10ffffUL, + UNICODE_LIMIT +} UNICODE_CONSTANTS; + +static ossl_unused inline int is_unicode_surrogate(unsigned long value) +{ + return value >= SURROGATE_MIN && value <= SURROGATE_MAX; +} + +static ossl_unused inline int is_unicode_valid(unsigned long value) +{ + return value <= UNICODE_MAX && !is_unicode_surrogate(value); +} + +#endif |