inet_lnaof()--Separate Local Portion of IP Address

  #include <sys/types.h>
  #include <sys/socket.h>
  #include <netinet/in.h>
  #include <arpa/inet.h>

 int inet_lnaof(struct in_addr internet_address)

  #define _XOPEN_SOURCE 520
  #include <arpa/inet.h>

 in_addr_t inet_lnaof(struct in_addr internet_address)

The inet_lnaof() function is used to extract the local host portion of an IP address.

There are two versions of the API, as shown above. The base i5/OS API uses BSD 4.3 structures and syntax. The other uses syntax and structures compatible with the UNIX 98 programming interface specifications. You can select the UNIX 98 compatible interface with the _XOPEN_SOURCE macro.

Parameters

internet_address

(Input) The 32-bit IP address from which the local host portion of the address is to be extracted.

Authorities

No authorization is required.

Return Value

inet_lnaof() returns an integer. Possible values are:

• n (where n is the local host address)

Usage Notes

1. When you develop in C-based languages and an application is compiled with the _XOPEN_SOURCE macro defined to the value 520 or greater, the inet_lnaof() API is mapped to qso_inet_lnaof98().

Related Information

• _XOPEN_SOURCE--Using _XOPEN_SOURCE for the UNIX 98 compatible interface
  
  
• inet_makeaddr()--Combine Network Portion and Host Portion to Make IP Address
  
  
• inet_netof()--Separate Network Portion of IP Address