GETHOSTUUID(2) Mac OS X System Calls Manual GETHOSTUUID(2)
NAME
gethostuuid -- return a unique identifier for the current machine
SYNOPSIS
#include <unistd.h>
int
gethostuuid(uuid_t id, const struct timespec *wait);
DESCRIPTION
The gethostuuid() function returns a 16-byte uuid_t specified by id, that uniquely identifies the current machine. Be aware that the hard-
ware identifiers that gethostuuid() uses to generate the UUID can themselves be modified.
The wait argument is a pointer to a struct timespec that specifies the maximum time to wait for the result. Setting the tv_sec and tv_nsec
fields to zero means to wait indefinitely until it completes.
RETURN VALUES
The gethostuuid() function returns zero on success or -1 on error.
ERRORS
The gethostuuid() functions fails if:
[EFAULT] wait points to memory that is not a valid part of the process address space.
[EWOULDBLOCK] The wait timeout expired before the UUID could be obtained.
SEE ALSO
uuid(3)
Mac OS X Nov 5, 2008 Mac OS X
