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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
  ifindex
      Specifies the index number.

  ifname
      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).

Index for Section 3

Alphabetical listing for I

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