ref: 4849aeb11a8c70819b236faceb4424557f35fafe
dir: /sys/src/libc/port/strcpy.c/
#include <u.h>
#include <libc.h>
#define	N	10000
char*
strcpy(char *s1, char *s2)
{
	char *os1;
	os1 = s1;
	while(!memccpy(s1, s2, 0, N)) {
		s1 += N;
		s2 += N;
	}
	return os1;
}