$NetBSD: OPENSSL_strcasecmp.3,v 1.5 2024/09/08 13:08:26 christos Exp $

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Title "OPENSSL_strcasecmp 3" For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
OPENSSL_strcasecmp, OPENSSL_strncasecmp - compare two strings ignoring case Header "SYNOPSIS" .Vb 1 #include <openssl/crypto.h> \& int OPENSSL_strcasecmp(const char *s1, const char *s2); int OPENSSL_strncasecmp(const char *s1, const char *s2, size_t n); .Ve Header "DESCRIPTION" The OPENSSL_strcasecmp function performs a byte-by-byte comparison of the strings \fBs1 and s2, ignoring the case of the characters.

The OPENSSL_strncasecmp function is similar, except that it compares no more than \fBn bytes of s1 and s2.

In POSIX-compatible system and on Windows these functions use "C" locale for case insensitive. Otherwise the comparison is done in current locale.

Header "RETURN VALUES" Both functions return an integer less than, equal to, or greater than zero if s1 is found, respectively, to be less than, to match, or be greater than s2. Header "NOTES" OpenSSL extensively uses case insensitive comparison of ASCII strings. Though OpenSSL itself is locale-agnostic, the applications using OpenSSL libraries may unpredictably suffer when they use localization (e.g. Turkish locale is well-known with a specific I/i cases). These functions use C locale for string comparison. Header "COPYRIGHT" Copyright 2022 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>.