david 8bc5135d93 When iterating over the interface list on systems that have sa_len, only ...

allow the sa_len to increase the size of the current structure, not
decrease it below sizeof(struct ifreq). Doing it this way makes it work
on NetBSD. This technique more or less matches that used in Unix Network
Programming, 3rd Edition, section 17.6. The old implementation was
likely incorrect, though it happened to work on FreeBSD.

2010-03-26 22:11:30 +00:00

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