1OPENSSL_STRCASECMP(3ossl)           OpenSSL          OPENSSL_STRCASECMP(3ossl)
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NAME

6       OPENSSL_strcasecmp, OPENSSL_strncasecmp - compare two strings ignoring
7       case
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SYNOPSIS

10        #include <openssl/crypto.h>
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12        int OPENSSL_strcasecmp(const char *s1, const char *s2);
13        int OPENSSL_strncasecmp(const char *s1, const char *s2, size_t n);
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DESCRIPTION

16       The OPENSSL_strcasecmp function performs a byte-by-byte comparison of
17       the strings s1 and s2, ignoring the case of the characters.
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19       The OPENSSL_strncasecmp function is similar, except that it compares no
20       more than n bytes of s1 and s2.
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22       In POSIX-compatible system and on Windows these functions use "C"
23       locale for case insensitive. Otherwise the comparison is done in
24       current locale.
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RETURN VALUES

27       Both functions return an integer less than, equal to, or greater than
28       zero if s1 is found, respectively, to be less than, to match, or be
29       greater than s2.
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NOTES

32       OpenSSL extensively uses case insensitive comparison of ASCII strings.
33       Though OpenSSL itself is locale-agnostic, the applications using
34       OpenSSL libraries may unpredictably suffer when they use localization
35       (e.g. Turkish locale is well-known with a specific I/i cases). These
36       functions use C locale for string comparison.
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39       Copyright 2022 The OpenSSL Project Authors. All Rights Reserved.
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41       Licensed under the Apache License 2.0 (the "License").  You may not use
42       this file except in compliance with the License.  You can obtain a copy
43       in the file LICENSE in the source distribution or at
44       <https://www.openssl.org/source/license.html>.
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483.1.1                             2023-08-31         OPENSSL_STRCASECMP(3ossl)
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