I suspect we’ll just remove it, but I want to give the other developers a 
chance to chime in before doing so.

> On Dec 12, 2014, at 6:07 PM, Paul Hargrove <phhargr...@lbl.gov> wrote:
> 
> Ralph,
> 
> If preserved at all, the existing code should probably be made to act more 
> intelligently when it encounters an unknown escape code.  I would suggest 
> advancing the length by some value (say 128?) that should be "big enough" and 
> printing a prominent warning.  So, the next time this bug surfaces it will be 
> (a) non-fatal and (b) easy to pin down.
> 
> -Paul
> 
> On Fri, Dec 12, 2014 at 5:46 PM, Ralph Castain <r...@open-mpi.org 
> <mailto:r...@open-mpi.org>> wrote:
> Looking at the comments in the code, it appears that the rationale when 
> written was to provide support for REALLY ancient systems that didn’t have 
> some of these functions. Since that time, we added a configure check for 
> vsnprintf, so I’m adding Paul/Larry’s suggested code, protected by that 
> configure.
> 
> Since I suspect the configure check will always pass on any system of 
> interest today, I think this will solve the problem. We can then address the 
> broader question (e.g., do we even need this stuff any more at all?) in a 
> more leisurely way.
> 
> 
>> On Dec 12, 2014, at 5:42 PM, Larry Baker <ba...@usgs.gov 
>> <mailto:ba...@usgs.gov>> wrote:
>> 
>> On 12 Dec 2014, at 5:22 PM, Paul Hargrove wrote:
>> 
>>> HOWEVER, while the patch catches the "%u" case, there are plenty of 
>>> potential ways to hit the same problem if, for instance, one uses "%zu" for 
>>> size_t.  Additionally, I've already noted that the code for "%ld", "%lx", 
>>> "%lX", "%lf" are all currently incorrect.
>> 
>> 
>> Not sure if it is applicable, but C99 has an <inttypes.h> header which 
>> #include's <stdint.h> and provides additional capabilities, such as 
>> printf()/scanf() format macros for the types defined in <stdint.h>.
>> 
>> Larry Baker
>> US Geological Survey
>> 650-329-5608 <tel:650-329-5608>
>> ba...@usgs.gov <mailto:ba...@usgs.gov>
>> 
> 
> 
> 
> 
> -- 
> Paul H. Hargrove                          phhargr...@lbl.gov 
> <mailto:phhargr...@lbl.gov>
> Computer Languages & Systems Software (CLaSS) Group
> Computer Science Department               Tel: +1-510-495-2352
> Lawrence Berkeley National Laboratory     Fax: +1-510-486-6900
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