/*
   =============================================================================
	strncpy.c -- copy string of n bytes
	Version 1 -- 1987-06-12

	Copy s2 to s1, truncating or null-padding to always copy n bytes
	return s1
   =============================================================================
*/

char *
strncpy(s1, s2, n)
register char *s1, *s2;
register int n;
{
	register char *os1 = s1;

	while (--n >= 0)
		if ((*s1++ = *s2++) == '\0')
			while (--n >= 0)
				*s1++ = '\0';

	return (os1);
}