gethostid(3c) [sunos man page]
gethostid(3C) Standard C Library Functions gethostid(3C) NAME
gethostid - get an identifier for the current host SYNOPSIS
#include <unistd.h> long gethostid(void); DESCRIPTION
The gethostid() function returns the 32-bit identifier for the current host. This identifier is taken from the CPU board's ID PROM. It is not guaranteed to be unique. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
hostid(1), sysinfo(2), attributes(5), standards(5) SunOS 5.10 24 Jul 2002 gethostid(3C)
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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. POSIX.1 does not define these functions, but ISO/IEC 9945-1:1990 mentions them in B.4.4.1. SVr4 includes gethostid but not sethostid. FILES
/etc/hostid SEE ALSO
hostid(1), gethostbyname(3) Linux 0.99.13 1993-11-29 GETHOSTID(2)