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if_indextoname(3)
NAME
  if_indextoname - Map an interface index to an interface name

SYNOPSIS
  #include <net/if.h>

  char *if_indextoname(
	  unsigned int ifindex,
	  char *ifname );

LIBRARY
  Standard C Library (libc)

PARAMETERS
  ifindex
      Specifies the index number.

  ifname
      Points to a buffer, IFNAMSIZ bytes in length, into which the function
      will place 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 the value
  specified in the ifname parameter, which points the buffer that now
  contains the interface name.	If no interface name corresponds to the
  index, it returns a NULL pointer.

SEE ALSO
  Functions: if_freenameindex(3), if_nameindex(3), if_nametoindex(3).

Index for Section 3

Alphabetical listing for I

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