// Copyright 2016 The Fuchsia Authors
// Copyright (c) 2008 Travis Geiselbrecht
//
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file or at
// https://opensource.org/licenses/MIT

#include <string.h>
#include <ctype.h>
#include <sys/types.h>

int
strnicmp(char const *s1, char const *s2, size_t len)
{
    unsigned char c1 = '\0';
    unsigned char c2 = '\0';

    if (len > 0) {
        do {
            c1 = *s1;
            c2 = *s2;
            s1++;
            s2++;
            if (!c1)
                break;
            if (!c2)
                break;
            if (c1 == c2)
                continue;
            c1 = tolower(c1);
            c2 = tolower(c2);
            if (c1 != c2)
                break;
        } while (--len);
    }
    return (int)c1 - (int)c2;
}
#pragma weak strncasecmp=strnicmp