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Code Issues Releases Activity

calculate first and last host instead of using the slower iterable

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Kelly Brazil
2022-07-27 13:08:35 -07:00
parent d970b435b4
commit 11d2eb35be
1 changed files with 6 additions and 14 deletions
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20
jc/parsers/ip_address.py
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@ -102,22 +102,14 @@ def parse(
network_string = str(interface.network).split('/')[0]
network_cidr = int(str(interface.with_prefixlen).split('/')[1])
network = ipaddress.ip_network(f'{network_string}/{network_cidr}')
broadcast_string = str(network.broadcast_address)
bare_ip_string = str(interface.ip)
bare_ip = ipaddress.ip_address(bare_ip_string)
ip_ptr = bare_ip.reverse_pointer
first_host = str(next(network.hosts()))
# hack to speed up iterating through large ipv6 subnets
# only do last_host for masks >= /16 (ipv4) or >= /120 (ipv6)
last_host = None
if any((
int(interface.version) == 4 and network_cidr >= 16,
int(interface.version) == 6 and network_cidr >= 120,
)):
dd = deque(network.hosts(), maxlen=1)
last_host = str(dd.pop())
# TODO: fix for /30, /31, /32, etc.
first_host = str(ipaddress.ip_address(network_string) + 1)
last_host = str(ipaddress.ip_address(broadcast_string) - 1)
raw_output = {
'version': int(interface.version),
@ -127,12 +119,12 @@ def parse(
'ip_exploded': str(interface.exploded),
'dns_ptr': ip_ptr,
'network': network_string,
'broadcast': str(network.broadcast_address),
'broadcast': broadcast_string,
'hostmask': str(interface.with_hostmask).split('/')[1],
'netmask': str(interface.with_netmask).split('/')[1],
'cidr_netmask': network_cidr,
'first_host': first_host,
'last_host': last_host, # None if netmask is too small
'last_host': last_host,
'is_multicast': interface.is_multicast,
'is_private': interface.is_private,
'is_global': interface.is_global,