Get a network entry, given an address (Unix)
#include <netdb.h> struct netent * getnetbyaddr( uint32_t net, int type );
- The net address whose network entry you want to find.
- The address type. This must currently be AF_INET.
Use the -l socket option to qcc to link against this library.
The getnetbyaddr() function gets an entry for the given address, net, from the network database, /etc/networks.
This function returns a pointer to a structure of type netent, which contains the broken-out fields of a line in the network database.
The getnetbyname() and getnetbyaddr() functions sequentially search from the beginning of the file until a matching net name or net address and type is found, or until EOF is encountered. Network numbers are supplied in host order.
A pointer to a valid netent structure, or NULL if an error occurs.
- Network name database file.
This function uses static data; if you need the data for future use, copy it before any subsequent calls overwrite it.
Only Internet network numbers are currently understood.