Interface Identification API

Functions
char *	lwip_if_indextoname (unsigned int ifindex, char *ifname)
unsigned int	lwip_if_nametoindex (const char *ifname)

Detailed Description

Function Documentation

lwip_if_indextoname()

char* lwip_if_indextoname	(	unsigned int	ifindex,
		char *	ifname
	)

Maps an interface index to its corresponding name.

Parameters

ifindex	interface index
ifname	shall point to a buffer of at least {IF_NAMESIZE} bytes

Returns

If ifindex is an interface index, then the function shall return the value supplied in ifname, which points to a buffer now containing the interface name. Otherwise, the function shall return a NULL pointer.

lwip_if_nametoindex()

unsigned int lwip_if_nametoindex

(

const char *

ifname

)

Returs the interface index corresponding to name ifname.

Parameters

ifname

Interface name

Returns

The corresponding index if ifname is the name of an interface; otherwise, zero.