ref: aa72a4301ac8e8f0a527672e2794b36773c6a381
dir: /lib/c/strncpy.c/
#include <string.h>
#undef strncpy
char *
strncpy(char * restrict dst, const char * restrict src, size_t n)
{
	char *ret = dst;
	for (; n > 0 && *src; --n)
		*dst++ = *src++;
	while (n-- > 0)
		*dst++ = '\0';
	return ret;
}