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Re: some ftpd implementations mishandle CWD ~{


From: Gregory A Lundberg
Subject: Re: some ftpd implementations mishandle CWD ~{
Date: Tue, 24 Apr 2001 22:48:25 -0400
User-agent: Mutt/1.2.5i

Your patch to wu-ftpd looks fine.  Setting a known-null pointer to NULL is
not needed, but otherwise I'll commit what you submitted.

If we free() a NULL pointer and that causes problems, that's not our
problem.  The specification for free() specifically says "if ptr is a null
pointer, no action occurs."  So the fact that a segmentation fault occurs
on Linux indicates a non-compliance in the GNU libc runtime.  If that
non-compliance causes down-stream problems by overwriting random memory,
the best place to fix it is to bring free() into compliance.

-- 

Gregory A Lundberg              WU-FTPD Development Group
1441 Elmdale Drive              address@hidden
Kettering, OH 45409-1615 USA    1-800-809-2195



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