/*
   =============================================================================
	strncat.c -- concatenate strings
	Version 1 -- 1987-06-12

	Concatenate s2 on the end of s1.  S1's space must be large enough.
	At most n characters are moved.
	Return s1.
   =============================================================================
*/

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

	os1 = s1;

	while(*s1++)
		;

	--s1;

	while(*s1++ = *s2++)
		if(--n < 0) {

			*--s1 = '\0';
			break;
		}

	return(os1);
}