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services(5)                 BSD File Formats Manual                services(5)


     services -- service name data base


     The services file contains information regarding the known services
     available in the DARPA Internet.  For each service a single line should
     be present with the following information:

           official service name
           port number
           protocol name

     Items are separated by any number of blanks and/or tab characters.  The
     port number and protocol name are considered a single item; a ``/'' is
     used to separate the port and protocol (e.g. ``512/tcp'').  A ``#'' indi-
     cates the beginning of a comment; subsequent characters up to the end of
     the line are not interpreted by the routines which search the file.

     Service names may contain any printable character other than a field
     delimiter, newline, or comment character.


     Processes generally find service records using one of the getservent(3)
     family of functions, or using getaddrinfo(3).  On Mac OS X, these func-
     tions interact with the DirectoryService(8) daemon, which reads the
     /etc/services file as well as searching other directory information ser-
     vices to determine service name, protocol, and port information.




     getservent(3), getaddrinfo(3), DirectoryService(8)


     The services file format appeared in 4.2BSD.

4.2 Berkeley Distribution        June 5, 1993        4.2 Berkeley Distribution

Mac OS X 10.8 - Generated Sat Sep 1 17:14:08 CDT 2012
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