Greg Lewis f326f69e57 . Try harder to make sure the flags returned from getFlags isn't negative, ...

since a number of places in the code check for that and assume that it
  means an error occurred.  On FreeBSD, in particular, the value of
  ifr_flags can be negative if multicast is enabled on the socket since
  the possible flags have expanded to fill more than a short.

  Instead of blindly promoting ifr_flags to an int, which will preserve
  the sign, we fill the int return value with ifr_flagshigh in the high
  16 bits and ifr_flags in the low 16 bits.

PR:		155186
Reported by:	Alex Hayward <xelah-freebsd-pr@xelah.com>

2011-07-08 07:28:46 +00:00

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