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Make hostwatch find both fqdn and hostname

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Currently hostwatch only adds hostnames even when FQDNs are available.
This commit changes found_host so that when the name is a FQDN, both the FQDN
and an hostname are added, e.g., given api.foo.com both api and api.foo.com
will be added.

Fixes #151 if merged.

N.B.: I rarely use hostwatch, it would probably be a good idea to get feedback
from people who actually use it before merging. Not too sure about this...
This commit is contained in:
vieira 2017-10-16 01:12:41 +00:00 committed by Brian May
parent 4c50be0bc7
commit 29cd75b6f7
2 changed files with 13 additions and 9 deletions
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2
sshuttle/client.py
View File

@ -298,7 +298,7 @@ class FirewallClient:
raise Fatal('%r expected STARTED, got %r' % (self.argv, line)) raise Fatal('%r expected STARTED, got %r' % (self.argv, line))
def sethostip(self, hostname, ip): def sethostip(self, hostname, ip):
assert(not re.search(b'[^-\w]', hostname)) assert(not re.search(b'[^-\w\.]', hostname))
assert(not re.search(b'[^0-9.]', ip)) assert(not re.search(b'[^0-9.]', ip))
self.pfile.write(b'HOST %s,%s\n' % (hostname, ip)) self.pfile.write(b'HOST %s,%s\n' % (hostname, ip))
self.pfile.flush() self.pfile.flush()

20
sshuttle/hostwatch.py
View File

@ -61,23 +61,27 @@ def read_host_cache():
words = line.strip().split(',') words = line.strip().split(',')
if len(words) == 2: if len(words) == 2:
(name, ip) = words (name, ip) = words
name = re.sub(r'[^-\w]', '-', name).strip() name = re.sub(r'[^-\w\.]', '-', name).strip()
ip = re.sub(r'[^0-9.]', '', ip).strip() ip = re.sub(r'[^0-9.]', '', ip).strip()
if name and ip: if name and ip:
found_host(name, ip) found_host(name, ip)
def found_host(hostname, ip): def found_host(name, ip):
hostname = re.sub(r'\..*', '', hostname) hostname = re.sub(r'\..*', '', name)
hostname = re.sub(r'[^-\w]', '_', hostname) hostname = re.sub(r'[^-\w\.]', '_', hostname)
if (ip.startswith('127.') or ip.startswith('255.') or if (ip.startswith('127.') or ip.startswith('255.') or
hostname == 'localhost'): hostname == 'localhost'):
return return
oldip = hostnames.get(hostname)
if hostname != name:
found_host(hostname, ip)
oldip = hostnames.get(name)
if oldip != ip: if oldip != ip:
hostnames[hostname] = ip hostnames[name] = ip
debug1('Found: %s: %s\n' % (hostname, ip)) debug1('Found: %s: %s\n' % (name, ip))
sys.stdout.write('%s,%s\n' % (hostname, ip)) sys.stdout.write('%s,%s\n' % (name, ip))
write_host_cache() write_host_cache()