[OPEN-ILS-DEV] PATCH: using gethostname()

[Scott McKellar]

These three patches are independent of each other, but they all do the
same thing.

In each case, we had been getting the local host name by reading the
environmental variable $HOSTNAME.  This approach normally works, but
it is vulnerable to abuse or error by a user who modifies the value
of that variable, or even unsets it altogether.

With these patches we will instead call gethostname(), which is not
affected by changes in the environment.

Scott McKellar
http://home.swbell.net/mck9/ct/

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