63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
/*
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Copyright 2025 Kamil Kowalczyk
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Redistribution and use in source and binary forms, with or
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without modification, are permitted provided that the following
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conditions are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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“AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <libk/types.h>
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#include <libk/string.h>
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usize_t memset(void *dst, byte_t b, usize_t n) {
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byte_t *dst1 = dst;
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usize_t i;
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for (i = 0; i < n; i++)
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dst1[i] = b;
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return i;
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}
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usize_t memcpy(void *dst, const void *src, usize_t n) {
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byte_t *dst1 = dst;
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const byte_t *src1 = src;
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usize_t i;
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for (i = 0; i < n; i++)
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dst1[i] = src1[i];
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return i;
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}
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// SOURCE: https://stackoverflow.com/a/48967408
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void strncpy(char* dst, const char* src, usize_t n) {
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usize_t i = 0;
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while(i++ != n && (*dst++ = *src++));
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}
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usize_t strlen(const char *str) {
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const char *s;
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for (s = str; *s; ++s);
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return (s - str);
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}
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