1998-12-05 18:19:06 -04:00
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world -- Print mappings between country names and DNS country codes.
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1998-12-14 17:36:40 -04:00
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Contact: Barry Warsaw
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1998-12-05 18:19:06 -04:00
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Email: bwarsaw@python.org
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This script will take a list of Internet addresses and print out where in the
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world those addresses originate from, based on the top-level domain country
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code found in the address. Addresses can be in any of the following forms:
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xx -- just the country code or top-level domain identifier
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host.domain.xx -- any Internet host or network name
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somebody@where.xx -- an Internet email address
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If no match is found, the address is interpreted as a regular expression [*]
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and a reverse lookup is attempted. This script will search the country names
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and print a list of matching entries. You can force reverse mappings with the
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`-r' flag (see below).
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For example:
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%% world tz us
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tz originated from Tanzania, United Republic of
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us originated from United States
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%% world united
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united matches 6 countries:
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ae: United Arab Emirates
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uk: United Kingdom (common practice)
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um: United States Minor Outlying Islands
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us: United States
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tz: Tanzania, United Republic of
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gb: United Kingdom
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[*] Note that regular expressions must conform to Python 1.5's re.py module
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syntax. The comparison is done with the search() method.
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Country codes are maintained by the RIPE Network Coordination Centre,
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in coordination with the ISO 3166 Maintenance Agency at DIN Berlin. The
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authoritative source of counry code mappings is:
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<url:ftp://info.ripe.net/iso3166-countrycodes>
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The latest known change to this information was:
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Thu Aug 7 17:59:51 MET DST 1997
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This script also knows about non-geographic top-level domains.
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Usage: world [-d] [-p file] [-o] [-h] addr [addr ...]
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--dump
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-d
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Print mapping of all top-level domains.
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--parse file
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-p file
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Parse an iso3166-countrycodes file extracting the two letter country
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code followed by the country name. Note that the three letter country
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codes and numbers, which are also provided in the standard format
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file, are ignored.
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--outputdict
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-o
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When used in conjunction with the `-p' option, output is in the form
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of a Python dictionary, and country names are normalized
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w.r.t. capitalization. This makes it appropriate for cutting and
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pasting back into this file.
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--reverse
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-r
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Force reverse lookup. In this mode the address can be any Python
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regular expression; this is matched against all country names and a
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list of matching mappings is printed. In normal mode (e.g. without
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this flag), reverse lookup is performed on addresses if no matching
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country code is found.
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-h
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--help
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Print this message.
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Local Variables:
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indent-tabs-mode: nil
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End:
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