Re: gethostbyname and getaddrinfo - multiple DNS entries for a hostname

[Andrew Johnson <anj@aps.anl.gov>]

Hi,

On 2013-03-11 Eric Norum wrote:
> Right -- we'd have to copy the existing posix/osdSock.c from posix/ to
> RTEMS/ before making the getaddrinfo change to posix/osdSock.c.

This is starting to sound more like a 3.15-level change now, since it's going 
to affect multiple architectures.  I confirmed Michael's observation that 
getaddrinfo() is not provided in RTEMS 4.9.2.

On 2013-03-11 Mark Rivers wrote:
> I checked an getaddrinfo also appears to be present on Windows.  If this
>  adds useful functionality then should it also be changed in the Windows
>  OSI code?

I suspect that unless you're suffering the same issues that Matt reported this 
wouldn't really make any difference.  I don't think it really adds any 
functionality other than apparently checking local host names before or as 
well as the DNS, although on Linux the older APIs are now documented as being 
obsolete.

The osi/os/WIN32/osdSock.c file could easily be changed to use getaddrinfo() 
instead of gethostbyaddr() and getnameinfo() instead of gethostbyname().  Do 
you know when Microsoft introduced the newer routines?  Would making this 
change prevent EPICS from running on some older versions of Windows?

- Andrew
-- 
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