if_indextoname(3) Library Functions Manual if_indextoname(3)
NAME
if_indextoname - Maps an interface index to an interface name
LIBRARY
Standard C Library (libc.so, libc.a)
SYNOPSIS
#include <net/if.h>
char *if_indextoname ( unsigned int ifindex, char *ifname) ;
PARAMETERS
Specifies the index number. Points to a buffer, IFNAMSIZ bytes in length, that contains the interface name. IFNAMSIZ is defined in
<net/if.h>.
DESCRIPTION
The if_indextoname() function maps an interface index number to its corresponding interface name.
RETURN VALUES
Upon successful conversion, the if_indextoname() function returns a pointer to the buffer containing the interface name. If no interface
name corresponds to the index, it returns a pointer to the buffer containing NULL.
RELATED INFORMATION
Functions: if_freenameindex(3), if_nameindex(3), if_nametoindex(3). delim off
if_indextoname(3)
