long int i_indx(a, b, la, lb)
char *a, *b;
long int la, lb;
{
long int i, n;
char *s, *t, *bend;

n = la - lb + 1;
bend = b + lb;

for(i = 0 ; i < n ; ++i)
	{
	s = a + i;
	t = b;
	while(t < bend)
		if(*s++ != *t++)
			goto no;
	return(i+1);
	no: ;
	}
return(0);
}