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util.iputil: try to survive not having a global network connection at all

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This commit is contained in:
Brian Warner 2007-03-07 18:21:42 -07:00
parent 61760047cf
commit f2956c257b
1 changed files with 4 additions and 1 deletions
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5
src/allmydata/util/iputil.py
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@ -11,7 +11,10 @@ def get_local_ip_for(target='A.ROOT-SERVERS.NET'):
Returns a string that holds the IP address which could be used by Returns a string that holds the IP address which could be used by
'target' to connect to us. It might work for them, it might not. 'target' to connect to us. It might work for them, it might not.
""" """
target_ipaddr = socket.gethostbyname(target) try:
target_ipaddr = socket.gethostbyname(target)
except socket.gaierror:
return "127.0.0.1"
udpprot = DatagramProtocol() udpprot = DatagramProtocol()
port = reactor.listenUDP(0, udpprot) port = reactor.listenUDP(0, udpprot)
udpprot.transport.connect(target_ipaddr, 7) udpprot.transport.connect(target_ipaddr, 7)