if.h(3HEAD)

Name

Synopsis

#include <net/if.h>

Description

The <net/if.h> header defines the if_nameindex structure, which includes the following members:

unsigned if_index     /* numeric index of the interface */
char     *if_name     /* null-terminated name of the interface */

The <net/if.h> header defines the following macro for the length of a buffer containing an interface name (including the terminating null character):

IF_NAMESIZE

interface name length

Attributes

See attributes(5) for descriptions of the following attributes:

See also

if_nametoindex(3XNET), attributes( 5), standards(5)