gethostid man page on YellowDog

gethostid man page on YellowDog

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GETHOSTID(2)		   Linux Programmer's Manual		  GETHOSTID(2)

NAME
       gethostid,  sethostid - get or set the unique identifier of the current
       host

SYNOPSIS
       #include <unistd.h>

       long gethostid(void);
       int sethostid(long hostid);

DESCRIPTION
       Get or set a unique 32-bit identifier for  the  current	machine.   The
       32-bit  identifier  is  intended to be unique among all UNIX systems in
       existence. This normally resembles the Internet address for  the	 local
       machine,	 as returned by gethostbyname(3), and thus usually never needs
       to be set.

       The sethostid() call is restricted to the superuser.

       The hostid argument is stored in the file /etc/hostid.

RETURN VALUE
       gethostid() returns the 32-bit identifier for the current host  as  set
       by sethostid(2).

CONFORMING TO
       4.2BSD;	these  functions  were dropped in 4.4BSD.  SVr4 includes geth‐
       ostid() but not sethostid().  POSIX.1-2001  specifies  gethostid()  but
       not sethostid().

FILES
       /etc/hostid

SEE ALSO
       hostid(1), gethostbyname(3)

Linux 0.99.13			  1993-11-29			  GETHOSTID(2)

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