Gabor Gombas <[EMAIL PROTECTED]> writes: > On Fri, Oct 07, 2005 at 11:18:57AM -0700, Russ Allbery wrote:
>> * Obtain the system host name with gethostname(). >> * Look up an IP address for that host with gethostbyname(). > The bug is here. This is completely wrong but sadly very common > practice. It is common because it is portable and works with some simple > configurations (namely, single-homed machines with static IP address). Well, I don't really agree with the statement that it's completely wrong, but I do understand what you're saying about the semantic mismatch at work here. >> * Look up the names associated with that address with gethostbyaddr(). >> * Walk the alias list of the result and find the first name containing >> a period. > The proper fix would be to enumerate all IP addresses of all network > interfaces and select one that has an appropriate name. Unfortunately > this is non-trivial and highly OS-dependent, although the libdumbnet1 > package provides a platform-independent API for this (among other > things). You've pretty much covered in that paragraph the reasons why INN can't take that approach. :) I know how hard this is from watching MIT Kerberos try to solve this problem and don't want to touch this portability nightmare with a ten-foot pole. -- Russ Allbery ([EMAIL PROTECTED]) <http://www.eyrie.org/~eagle/> -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
