if.h File Reference

Network interface names and indices (<net/if.h>) More...

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Data Structures
struct	if_nameindex
	Network interface name-to-index mapping. More...

Macros
#define	IF_NAMESIZE   1

Functions
char *	if_indextoname (unsigned int ifindex, char *ifname)
	Map a network interface index to its name.
void	if_freenameindex (struct if_nameindex *ptr)
	Free a list returned by if_nameindex().
struct if_nameindex *	if_nameindex (void)
	Return all network interfaces as a name-index array.
unsigned int	if_nametoindex (const char *ifname)
	Map a network interface name to its index.

Detailed Description

Network interface names and indices (<net/if.h>)

See also

POSIX.1-2017 <net/if.h>

Definition in file if.h.

Macro Definition Documentation

IF_NAMESIZE

#define IF_NAMESIZE   1

Definition at line 24 of file if.h.