July 2002
Beginner to intermediate
96 pages
1h 53m
English
Content preview from Perl Pocket Reference, 4th Edition
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Information About Network Protocols
In list context, each of these routines returns a list of values. Use the standard module Net::protoent for by-name access to the elements of the list:
Index | Name | Description |
|---|---|---|
0 | name | Protocol name |
1 | aliases | Alias names |
2 | proto | Protocol number |
- endprotoent
Ends lookup processing.
- getprotobyname name
Gets information by protocol name. In scalar context, returns the protocol number.
- getprotobynumber number
Gets information by protocol number. In scalar context, returns the name of the protocol.
- getprotoent
Gets next protocol information. In scalar context, returns the name of the protocol.
- setprotoent stayopen
Resets lookup processing.
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