[freetds] getopt compatibility

ZIGLIO, Frediano, VF-IT Frediano.Ziglio at vodafone.com
Tue May 27 09:37:32 EDT 2008

> ZIGLIO, Frediano, VF-IT wrote:
> > In tsql
> > getopt is restarted to read options. It's currently 
> restarted using GNU
> > getopt way, that is setting optind with 0. However under 
> *BSD there is a
> > optreset to reset status. However I mainly got problems with HP-UX
> > getopt... as you can read from
> > http://docs.hp.com/en/B2355-60105/getopt.3C.html getopt get 
> reset with 1
> > as optind. ... From HP-UX manual it seems also that behavior
> > of this getopt implementation is quite different as from my
> > understanding it stops reading parameters at the first 
> no-options one...
> > How to fix this problem?? 
> Hi Freddy, 
> Looking at the code, I think the most portable choice -- and 
> probably the
> least work -- is to refactor tsql.c: call getopt(3) in only 
> one place, and
> don't reset optind/optreset.  

ehm.... that is only for main argc/argv ??

> (Curiously, I use tsql on NetBSD and have never noticed any problem. 
> Maybe that's because of the sequence I usually put the options in.)  

it can be... I don't want to debug even *BSD code...

> I think refactoring is best because otherwise you need an 
> autoconf test
> for behavior (testing for HP/UX isn't the Right Thing) and a 
> tds_getopt
> with a bunch of #define macros.  It would look like 
> src/tds/net.c.  :-(

I know.. net.c is ugly but it does a lot of system optimizations and all
contained in a single file... all others use mainly plain C and some
allocation/deallocation function...

> Besides, the code will be easier to understand when all the 
> options are
> parsed in one place.  


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