GETHOSTUUID(2) Mac OS X System Calls Manual GETHOSTUUID(2)NAMEgethostuuid — 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 hardware
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 ALSOuuid(3)Mac OS X Nov 5, 2008 Mac OS X