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protocols(5) [osx man page]

PROTOCOLS(5)						      BSD File Formats 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 delimiter, newline, or comment character. INTERACTION WITH DIRECTORY SERVICES
Processes generally find protocol records using one of the getprotoent(3) family of functions. On Mac OS X, these functions interact with the DirectoryService(8) daemon, which reads the /etc/protocols file as well as searching other directory information services to determine protocol name and number information. FILES
/etc/protocols SEE ALSO
getprotoent(3), DirectoryService(8) HISTORY
The protocols file format appeared in 4.2BSD. 4.2 Berkeley Distribution June 5, 1993 4.2 Berkeley Distribution

Check Out this Related Man Page

NETWORKS(5)						      BSD File Formats Manual						       NETWORKS(5)

NAME
networks -- network name data base DESCRIPTION
The networks file contains information regarding the known networks which comprise the DARPA Internet. For each network a single line should be present with the following information: official network name network 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. This file is normally created from the official network data base maintained at the Network Information Control Center (NIC), though local changes may be required to bring it up to date regarding unofficial aliases and/or unknown networks. Network number may be specified in the conventional ``.'' (dot) notation using the inet_network(3) routine from the Internet address manipu- lation library, inet(3). Network names may contain any printable character other than a field delimiter, newline, or comment character. INTERACTION WITH DIRECTORY SERVICES
Processes generally find network records using one of the getnetent(3) family of functions. On Mac OS X, these functions interact with the DirectoryService(8) daemon, which reads the /etc/networks file as well as searching other directory information services to determine network name and address information. FILES
/etc/networks SEE ALSO
getnetent(3), DirectoryService(8) HISTORY
The networks file format appeared in 4.2BSD. 4.2 Berkeley Distribution June 5, 1993 4.2 Berkeley Distribution

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