tor/changes/bug1240

  o Minor bugfixes:
    - When running with an older Linux kernel that erroneously responds
      to strange nmap behavior by having accept() return successfully
      with a zero-length socket, just close the connection. Previously,
      we would try harder to learn the remote address: but there was no
      such remote address to learn, and our method for trying to learn
      it was incorrect. Fixes bugs #1240, #4745, and #4747. Bugfix on
      0.1.0.3-rc. Reported and diagnosed by "r1eo".
Do not even try to keep going on a socket with socklen==0 Back in #1240, r1eo linked to information about how this could happen with older Linux kernels in response to nmap. Bugs #4545 and #4547 are about how our approach to trying to deal with this condition was broken and stupid. Thanks to wanoskarnet for reminding us about #1240. This is a fix for the abovementioned bugs, and is a bugfix on 0.1.0.3-rc. 2011-12-19 20:37:52 +01:00			`o Minor bugfixes:`
			`- When running with an older Linux kernel that erroneously responds`
			`to strange nmap behavior by having accept() return successfully`
			`with a zero-length socket, just close the connection. Previously,`
			`we would try harder to learn the remote address: but there was no`
			`such remote address to learn, and our method for trying to learn`
			`it was incorrect. Fixes bugs #1240, #4745, and #4747. Bugfix on`
			`0.1.0.3-rc. Reported and diagnosed by "r1eo".`