mirror of https://github.com/python/cpython
62 lines
1.6 KiB
Python
62 lines
1.6 KiB
Python
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"""Sample program performing domain name lookups and showing off EasyDialogs,
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Res and Dlg in the process"""
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import EasyDialogs
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import Res
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import Dlg
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import sys
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import socket
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import string
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#
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# Definitions for our resources
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ID_MAIN=512
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ITEM_LOOKUP_ENTRY=1
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ITEM_RESULT=2
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ITEM_LOOKUP_BUTTON=3
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ITEM_QUIT_BUTTON=4
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def main():
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"""Main routine: open resource file, call dialog handler"""
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try:
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Res.OpenResFile("dnslookup-1.rsrc")
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except Res.Error:
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EasyDialogs.Message("Cannot open dnslookup-1.rsrc")
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sys.exit(1)
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do_dialog()
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def do_dialog():
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"""Post dialog and handle user interaction until quit"""
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my_dlg = Dlg.GetNewDialog(ID_MAIN, -1)
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while 1:
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n = Dlg.ModalDialog(None)
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if n == ITEM_LOOKUP_BUTTON:
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tp, h, rect = my_dlg.GetDialogItem(ITEM_LOOKUP_ENTRY)
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txt = Dlg.GetDialogItemText(h)
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tp, h, rect = my_dlg.GetDialogItem(ITEM_RESULT)
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Dlg.SetDialogItemText(h, dnslookup(txt))
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elif n == ITEM_QUIT_BUTTON:
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break
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def dnslookup(str):
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""" Perform DNS lookup on str. If first character of digit is numeric,
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assume that str contains an IP address. Otherwise, assume that str
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contains a hostname."""
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if str == '': str = ' '
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if str[0] in string.digits:
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try:
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value = socket.gethostbyaddr(str)[0]
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except:
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value = 'Lookup failed'
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else:
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try:
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value = socket.gethostbyname(str)
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except:
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value = 'Lookup failed'
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return value
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main()
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