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gethostid(2)
NAME
  gethostid - Gets the unique identifier of the current host

SYNOPSIS
  #include <unistd.h>

  long gethostid ( void );

DESCRIPTION
  The gethostid() function allows a process to retrieve the 32-bit identifier
  for the current host.	 In most cases, the host ID is stored in network
  standard byte order and is a DARPA Internet address for the local machine.

RETURN VALUES
  Upon completion, the gethostid() function returns the identifier for the
  current host.

RELATED INFORMATION
  Functions: gethostname(2), sethostname(2)