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PROTOCOLS(5) File Formats Manual PROTOCOLS(5)

NAME

protocolsprotocol name database

DESCRIPTION

The protocols file contains information regarding the known protocols used in the DARPA Internet. For each protocol, a single line should be present with the following information:
official protocol name 
protocol number 
aliases
Items are separated by any number of blanks and/or tab characters.
A hash mark (‘#’) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by the routines which search the file.
Protocol names may contain any printable character other than a field delimiter, newline, or comment character.

FILES

/etc/protocols
 

SEE ALSO

getprotoent(3)

HISTORY

The protocols file format appeared in 4.2BSD.

BUGS

A name server should be used instead of a static file. Lines in /etc/protocols are limited to BUFSIZ characters (currently 1024). Longer lines will be ignored.
May 31, 2007 OpenBSD-current