PROTOCOLS(5) MachTen Programmer’s Manual PROTOCOLS(5)

NAME
protocols - protocol name data base

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
‘‘#’’ indicates the beginning of a comment; characters up to the end of
the line are not interpreted by routines which search the file.

Protocol names may contain any printable character other than a field de-
limiter, newline, or comment character.

FILES
/etc/protocols The protocols file resides in /etc.

SEE ALSO
getprotoent(3)

BUGS
A name server should be used instead of a static file.

HISTORY
The protocols file format appeared in 4.2BSD.

4.2 Berkeley Distribution June 5, 1993 1