tjr 83375877b4 Change the buffer length test in NEEDSP() so that it does not
subtract one unsigned number from another potentially smaller
one, leading to wraparound (and heap corruption, eventually).

PR:		58813
MFC after:	2 weeks
2003-11-02 23:20:24 +00:00
..
2002-07-30 19:42:18 +00:00
2002-06-17 08:21:53 +00:00