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"/etc/resolv.conf" assumed default path is wrong for termux #724

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"/etc/resolv.conf" assumed default path is wrong for termux #724

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19 changes: 18 additions & 1 deletion eventlet/support/greendns.py
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Original file line number Diff line number Diff line change
Expand Up @@ -408,7 +408,24 @@ def getaliases(self, hostname):
return aliases


resolver = ResolverProxy(hosts_resolver=HostsResolver())
"""
Some systems' default resolv.conf file is not located in /etc/resolv.conf

for instance, in termux (terminal app in android) there are system configurations wich can not
be mounted or symbolically linked to the android's /etc/ path, due to how android works
and therefore have their own locations in a subdirectory in the app's data directory

the termux environment can be identified via the $PREFIX environment variable, and so
the following code provides a patch for this specific case, while maintaining the default
functionality if the system is not termux
"""
resolver = None
if 'PREFIX' in os.environ and os.environ['PREFIX']=='/data/data/com.termux/files/usr':
print('greendns: system is termux')
resolver = ResolverProxy(hosts_resolver=HostsResolver(),filename=(os.environ['PREFIX']+'/etc/resolv.conf'))
else:
resolver = ResolverProxy(hosts_resolver=HostsResolver())



def resolve(name, family=socket.AF_INET, raises=True, _proxy=None,
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