Utility to create pnSeed array

This commit is contained in:
Gavin Andresen 2013-01-29 22:17:56 -05:00
parent 2835080e16
commit 9126e08739
2 changed files with 41 additions and 0 deletions

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contrib/seeds/README Normal file
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Utility to generate the pnSeed[] array that is compiled into the client
(see src/net.cpp).
The 600 seeds compiled into the 0.8 release were created from sipa's DNS seed data, like this:
curl -s http://bitcoin.sipa.be/seeds.txt | head -1000 | makeseeds.py
The input to makeseeds.py is assumed to be approximately sorted from most-reliable to least-reliable,
with IP:port first on each line (lines that don't match IPv4:port are ignored).

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contrib/seeds/makeseeds.py Executable file
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#!/usr/bin/env python
#
# Generate pnSeed[] from Pieter's DNS seeder
#
NSEEDS=600
import re
import sys
from subprocess import check_output
def main():
lines = sys.stdin.readlines()
ips = []
pattern = re.compile(r"^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3}):8333")
for line in lines:
m = pattern.match(line)
if m is None:
continue
ip = 0
for i in range(0,4):
ip = ip + (int(m.group(i+1)) << (8*(i)))
if ip == 0:
continue
ips.append(ip)
for row in range(0, min(NSEEDS,len(ips)), 8):
print " " + ", ".join([ "0x%08x"%i for i in ips[row:row+8] ]) + ","
if __name__ == '__main__':
main()