| 1 | =pod
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| 2 |
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| 3 | =head1 NAME
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| 4 |
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| 5 | OPENSSL_strcasecmp, OPENSSL_strncasecmp - compare two strings ignoring case
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| 6 |
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| 7 | =head1 SYNOPSIS
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| 8 |
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| 9 | #include <openssl/crypto.h>
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| 10 |
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| 11 | int OPENSSL_strcasecmp(const char *s1, const char *s2);
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| 12 | int OPENSSL_strncasecmp(const char *s1, const char *s2, size_t n);
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| 13 |
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| 14 | =head1 DESCRIPTION
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| 15 |
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| 16 | The OPENSSL_strcasecmp function performs a byte-by-byte comparison of the strings
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| 17 | B<s1> and B<s2>, ignoring the case of the characters.
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| 18 |
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| 19 | The OPENSSL_strncasecmp function is similar, except that it compares no more than
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| 20 | B<n> bytes of B<s1> and B<s2>.
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| 21 |
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| 22 | In POSIX-compatible system and on Windows these functions use "C" locale for
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| 23 | case insensitive. Otherwise the comparison is done in current locale.
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| 24 |
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| 25 | =head1 RETURN VALUES
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| 26 |
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| 27 | Both functions return an integer less than, equal to, or greater than zero if
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| 28 | s1 is found, respectively, to be less than, to match, or be greater than s2.
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| 29 |
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| 30 | =head1 NOTES
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| 31 |
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| 32 | OpenSSL extensively uses case insensitive comparison of ASCII strings. Though
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| 33 | OpenSSL itself is locale-agnostic, the applications using OpenSSL libraries may
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| 34 | unpredictably suffer when they use localization (e.g. Turkish locale is
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| 35 | well-known with a specific I/i cases). These functions use C locale for string
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| 36 | comparison.
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| 37 |
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| 38 | =head1 COPYRIGHT
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| 39 |
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| 40 | Copyright 2022 The OpenSSL Project Authors. All Rights Reserved.
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| 41 |
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| 42 | Licensed under the Apache License 2.0 (the "License"). You may not use
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| 43 | this file except in compliance with the License. You can obtain a copy
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| 44 | in the file LICENSE in the source distribution or at
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| 45 | L<https://www.openssl.org/source/license.html>.
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| 46 |
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| 47 | =cut
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