mirror of
https://github.com/RGBCube/serenity
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72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <assert.h>
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#include <ctype.h>
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#include <string.h>
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#include <strings.h>
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extern "C" {
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void bzero(void* dest, size_t n)
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{
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memset(dest, 0, n);
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}
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void bcopy(const void* src, void* dest, size_t n)
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{
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memmove(dest, src, n);
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}
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static char foldcase(char ch)
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{
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if (isalpha(ch))
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return tolower(ch);
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return ch;
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}
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int strcasecmp(const char* s1, const char* s2)
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{
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for (; foldcase(*s1) == foldcase(*s2); ++s1, ++s2) {
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if (*s1 == 0)
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return 0;
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}
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return foldcase(*(const unsigned char*)s1) < foldcase(*(const unsigned char*)s2) ? -1 : 1;
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}
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int strncasecmp(const char* s1, const char* s2, size_t n)
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{
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if (!n)
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return 0;
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do {
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if (foldcase(*s1) != foldcase(*s2++))
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return foldcase(*(const unsigned char*)s1) - foldcase(*(const unsigned char*)--s2);
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if (*s1++ == 0)
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break;
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} while (--n);
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return 0;
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}
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}
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