Re: cainfo does display host info

["Ernest L. Williams Jr." <ernesto@slac.stanford.edu>]

Hi Jeff,

That does not work for me.

Only when I turn on "nscd" on my linux systems do things work reliably.
When nscd is not running most of the time I get the empty string.



Thanks,
Ernest



Jeff Hill wrote:
> Dirk,
>
>   
> > I think the IP address would be better than an empty string.
> >     
>
> TBOMK, it does return the dotted IP address as a string if the DNS transaction hasn't completed yet. Let me know if that isn’t the case.
>
> unsigned hostNameCache::getName ( 
>     char * pBuf, unsigned bufSize ) const
> {
>     if ( bufSize == 0u ) {
>         return 0u;
>     }
>     epicsGuard < epicsMutex > guard ( this->mutex );
>     if ( this->nameLength > 0u ) {
>         if ( this->nameLength < bufSize ) {
>             strcpy ( pBuf, this->hostNameBuf );
>             return this->nameLength;
>         }
>         else {
>             unsigned reducedSize = bufSize - 1u;
>             strncpy ( pBuf, this->hostNameBuf, reducedSize );
>             pBuf [ reducedSize ] = '\0';
>             return reducedSize;
>         }
>     }
>     else {
>         osiSockAddr tmpAddr = this->dnsTransaction.address ();
>         return sockAddrToDottedIP ( &tmpAddr.sa, pBuf, bufSize );
>     }
> }
>
> Jeff
> ______________________________________________________
> Jeffrey O. Hill           Email        johill@lanl.gov
> LANL MS H820              Voice        505 665 1831
> Los Alamos NM 87545 USA   FAX          505 665 5107
>
> Message content: TSPA
>
>
>   
> > -----Original Message-----
> > From: Dirk Zimoch [mailto:dirk.zimoch@psi.ch]
> > Sent: Wednesday, July 22, 2009 12:46 AM
> > To: Jeff Hill
> > Cc: tech-talk@aps.anl.gov
> > Subject: Re: cainfo does display host info
> >
> >
> >
> > Jeff Hill wrote:
> >
> >     
> > > I'm fully open to alternative suggestions.
> > >       
> > I think the IP address would be better than an empty string.
> >
> >
> > --
> > Dr. Dirk Zimoch
> > Paul Scherrer Institut, WBGB/006
> > 5232 Villigen PSI, Switzerland
> > Phone +41 56 310 5182
> >     
>
>
>