Ok, I think I found what you are looking for
getservbyname() - Get Port Number for Service Name
getservbyname_r() - Get Port Number for Service Name
getservbyport() - Get Service Name for Port Number
getservbyport_r() - Get Service Name for Port Number
If you need APIs to create your own then you'll have to read on your own.
I got you close enough.
Their documentation actually mentions things like:
System i® Navigator or the following CL commands can be used to access
the services database file:
WRKSRVTBLE (Work with Service Table Entries)
ADDSRVTBLE (Add Service Table Entry)
RMVSRVTBLE (Remove Service Table Entry)
As an Amazon Associate we earn from qualifying purchases.
This mailing list archive is Copyright 1997-2021 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact
Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.