2023-12-06 17:43:39 -05:00
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.\" **************************************************************************
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.\" * _ _ ____ _
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.\" * Project ___| | | | _ \| |
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.\" * / __| | | | |_) | |
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.\" * | (__| |_| | _ <| |___
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.\" * \___|\___/|_| \_\_____|
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.\" *
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.\" * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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.\" *
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.\" * This software is licensed as described in the file COPYING, which
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.\" * you should have received as part of this distribution. The terms
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.\" * are also available at https://curl.se/docs/copyright.html.
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.\" *
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.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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.\" * copies of the Software, and permit persons to whom the Software is
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.\" * furnished to do so, under the terms of the COPYING file.
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.\" *
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.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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.\" * KIND, either express or implied.
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.\" *
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.\" * SPDX-License-Identifier: curl
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.\" *
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.\" **************************************************************************
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.TH curl_strequal 3 "30 April 2004" "libcurl" "libcurl"
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.SH NAME
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curl_strequal, curl_strnequal - case insensitive string comparisons
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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2024-06-17 19:04:36 -04:00
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int curl_strequal(char *str1, char *str2);
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int curl_strnequal(char *str1, char *str2, size_t length);
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2023-12-06 17:43:39 -05:00
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.fi
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.SH DESCRIPTION
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The
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.B curl_strequal()
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function compares the two strings \fIstr1\fP and \fIstr2\fP, ignoring the case
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of the characters. It returns a non-zero (TRUE) integer if the strings are
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identical.
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.sp
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The \fBcurl_strnequal()\fP function is similar, except it only compares the
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first \fIlength\fP characters of \fIstr1\fP.
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.sp
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These functions are provided by libcurl to enable applications to compare
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strings in a truly portable manner. There are no standard portable case
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insensitive string comparison functions. These two work on all platforms.
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.SH EXAMPLE
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.nf
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if(curl_strequal(name, input))
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printf("Name and input matches\\n");
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if(curl_strnequal(name, input, 5))
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printf("Name and input matches in the 5 first bytes\\n");
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.fi
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.SH AVAILABILITY
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Always
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.SH RETURN VALUE
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Non-zero if the strings are identical. Zero if they are not.
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.SH "SEE ALSO"
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.BR strcmp "(3), " strcasecmp "(3)"
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