32bit UID support for glibc 2.1.3

[Andreas Schwab]

Andreas Jaeger <aj@suse.de> writes:

|> >>>>> Ulrich Drepper writes:
|> 
|>  > I want to have a 2.2 patch first.  Currently I'm not wiling to apply
|>  > the patch to 2.1 and certainly not to 2.1.3.  There was not enough
|>  > testing, especially compatibility.  Woul you bet that nothing was
|>  > overlooked?
|> 
|> Ok, I'm outvoted ;-).  I'm currently working on the patch for 2.2.  A
|> problem is the stat call and therefore I'm looking at it first.
|> 
|> The normal stat call only returns a 16bit uid.  To get 32bit uids we
|> have to use stat64 and convert struct stat64 to struct stat with
|> checking for overflow (some entries in struct stat and struct stat64
|> have different sizes).  
|> 
|> Anybody with another idea how to solve the problem?

Overflow checking seems to be required for SUS2 compiance.  Btw., the
kernel does no such checks in the stat syscall.

Andreas.

-- 
Andreas Schwab                                  "And now for something
SuSE Labs                                        completely different."
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