/usr/bin/greylist is in greylistd 0.8.8.6.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 | #!/usr/bin/python
########################################################################
### FILE: greylist
### PURPOSE: Command line interface to "greylistd(8)"
###
### Copyright (C) 2004, Tor Slettnes <tor@slett.net>
###
### This program is free software; you can redistribute it and/or modify
### it under the terms of the GNU General Public License as published by
### the Free Software Foundation; either version 2 of the License, or
### (at your option) any later version.
###
### This program is distributed in the hope that it will be useful,
### but WITHOUT ANY WARRANTY; without even the implied warranty of
### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
### GNU General Public License for more details.
###
### On Debian GNU/Linux systems, the complete text of the GNU General
### Public License can be found in `/usr/share/common-licenses/GPL'.
### It is also available at: http://www.gnu.org/licenses/gpl.html
########################################################################
from socket import socket, AF_UNIX, SOCK_STREAM
from sys import argv, stdout, stderr, exit
from ConfigParser import ConfigParser
### Define values not yet availble in Python 2.1
False, True = (0 is 1), (1 is 1)
### Exit codes based on responses from greylistd
exitcodes = { "error:" : -1,
"white" : 0,
"grey" : 1,
"black" : 2,
"true" : 0,
"false" : 1 }
### File paths
conffile = "/etc/greylistd/config"
sockfile = "/var/run/greylistd/socket"
### Commands that can be given over the socket
commands = ("add", "delete", "check", "update",
"stats", "list", "clear", "save",
"reload", "mrtg")
def usage (progname, message=None):
if message:
out = stderr
out.write("%s: %s\n\n"%(progname, message))
else:
out = stdout
out.write("Command line interface to \"greylistd(8)\"\n\n")
out.write("\n".join([
"Usage: %s --help"%progname,
" %s <action>"%progname,
"",
"Actions:",
" add [--white|--grey|--black] <data> ...",
" Add <data> to the specified list (\"--white\" if unspecified).",
"",
" delete <data> ...",
" Remove <data> from any list.",
"",
" check [--white|--grey|--black] <data> ...",
" Check the current status of <data>.",
"",
" update [--white|--grey|--black] <data> ...",
" Check the current status of <data>; update lists accordingly.",
" This is how MTAs would normally use the command.",
"",
" stats",
" Show some general list statistics.",
"",
" mrtg",
" Show grey and white list statistics in a format that MRTG can use directly.",
"",
" list [--white] [--grey] [--black]",
" Show all data items in the specified list(s).",
"",
" save",
" Force an immediate dump of data to filesystem.",
"",
" reload",
" Save data, then reload configuration and data.",
"",
" clear [--white|--grey|--black]",
" Remove ALL data and statistics, i.e. reset greylistd(8).",
" This means that ALL new requests will initially receive",
" a \"grey\" response. Use with caution!",
"",
""]))
exit((-1, 0)[not message])
progname = argv[0].split("/")[-1]
if len(argv) < 2:
usage(progname, "No action specified.")
action = argv[1].lower()
if action in ("-h", "-help", "--help", "help"):
usage(progname)
elif not action in commands:
usage(progname, "Invalid action: '%s'"%action)
confParser = ConfigParser()
confParser.read(conffile)
try:
sockfile = confParser.get("socket", "path")
except:
pass
del confParser
sock = socket(AF_UNIX, SOCK_STREAM)
try:
sock.connect(sockfile)
except Exception, e:
stderr.write("%s: %s\n"%(sockfile, e[1]))
exit(-1)
try:
sock.send(" ".join(argv[1:]))
except Exception, e:
stderr.write("%s: %s\n"%(sockfile, e[1]))
exit(-1)
stat = True
firstword = None
while stat:
stat = sock.recv(1024)
try:
stdout.write("%s"%stat)
except IOError:
break
else:
if not firstword and stat.strip():
firstword = stat.split(None, 1)[0]
else:
try:
stdout.write("\n")
except IOError:
pass
if firstword:
exit(exitcodes.get(firstword, 0))
else:
stderr.write("(No response from greylistd)\n")
exit(-1)
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