77 lines
1.9 KiB
Python
77 lines
1.9 KiB
Python
|
#!/usr/bin/env python
|
||
|
|
#
|
||
|
|
|
||
|
|
import sys, os, string, re
|
||
|
|
|
||
|
|
def usage():
|
||
|
|
print """\
|
||
|
|
usage: genserv < /etc/services > netbsd/net/services.h
|
||
|
|
|
||
|
|
this program is used to generate the hard-coded internet service list for the
|
||
|
|
Bionic C library.
|
||
|
|
"""
|
||
|
|
|
||
|
|
re_service = re.compile(r"([\d\w\-_]+)\s+(\d+)/(tcp|udp)(.*)")
|
||
|
|
re_alias = re.compile(r"([\d\w\-_]+)(.*)")
|
||
|
|
|
||
|
|
class Service:
|
||
|
|
def __init__(self,name,port,proto):
|
||
|
|
self.name = name
|
||
|
|
self.port = port
|
||
|
|
self.proto = proto
|
||
|
|
self.aliases = []
|
||
|
|
|
||
|
|
def add_alias(self,alias):
|
||
|
|
self.aliases.append(alias)
|
||
|
|
|
||
|
|
def __str__(self):
|
||
|
|
result = "\\%0o%s" % (len(self.name),self.name)
|
||
|
|
result += "\\%0o\\%0o" % (((self.port >> 8) & 255), self.port & 255)
|
||
|
|
if self.proto == "tcp":
|
||
|
|
result += "t"
|
||
|
|
else:
|
||
|
|
result += "u"
|
||
|
|
|
||
|
|
result += "\\%0o" % len(self.aliases)
|
||
|
|
for alias in self.aliases:
|
||
|
|
result += "\\%0o%s" % (len(alias), alias)
|
||
|
|
|
||
|
|
return result
|
||
|
|
|
||
|
|
def parse(f):
|
||
|
|
result = [] # list of Service objects
|
||
|
|
for line in f.xreadlines():
|
||
|
|
if len(line) > 0 and line[-1] == "\n":
|
||
|
|
line = line[:-1]
|
||
|
|
if len(line) > 0 and line[-1] == "\r":
|
||
|
|
line = line[:-1]
|
||
|
|
|
||
|
|
line = string.strip(line)
|
||
|
|
if len(line) == 0 or line[0] == "#":
|
||
|
|
continue
|
||
|
|
|
||
|
|
m = re_service.match(line)
|
||
|
|
if m:
|
||
|
|
service = Service( m.group(1), int(m.group(2)), m.group(3) )
|
||
|
|
rest = string.strip(m.group(4))
|
||
|
|
|
||
|
|
while 1:
|
||
|
|
m = re_alias.match(rest)
|
||
|
|
if not m:
|
||
|
|
break
|
||
|
|
service.add_alias(m.group(1))
|
||
|
|
rest = string.strip(m.group(2))
|
||
|
|
|
||
|
|
result.append(service)
|
||
|
|
|
||
|
|
return result
|
||
|
|
|
||
|
|
services = parse(sys.stdin)
|
||
|
|
line = '/* generated by genserv.py - do not edit */\nstatic const char _services[] = "\\\n'
|
||
|
|
for s in services:
|
||
|
|
line += str(s)+"\\\n"
|
||
|
|
line += '\\0";\n'
|
||
|
|
print line
|
||
|
|
|
||
|
|
|