[Commotion-admin] [olsrd] (hopefully) Fix segfault in dnssd. (#2)

[hawkinswnaf]

Initialize pointers to NULL and use malloc()
instead of asprintf.
You can merge this Pull Request by running:

  git pull https://github.com/hawkinswnaf/olsrd release-0.6.5

Or you can view, comment on it, or merge it online at:

  https://github.com/opentechinstitute/olsrd/pull/2

-- Commit Summary --

  * (hopefully) Fix segfault in dnssd.

-- File Changes --

    M lib/dnssd/src/dnssd.c (93)

-- Patch Links --

https://github.com/opentechinstitute/olsrd/pull/2.patch
https://github.com/opentechinstitute/olsrd/pull/2.diff

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