startcpu(2) [ultrix man page]

startcpu(2)							System Calls Manual						       startcpu(2)

Name
       startcpu - start a CPU

Syntax
       startcpu(cpunumber)
       int cpunumber;

Description
       The  system  call starts the CPU specified by cpunumber.  Any non-boot CPU can be started using this system call. Only a superuser can exe-
       cute this system call.

Return Values
       The call returns 0 if the CPU was started successfully, or else it returns -1 and sets errno appropriately.

Diagnostics
       [EPERM]	      The caller is not a superuser

       [EBUSY]	      The CPU is already running

       [ENODEV]       No CPU present by the given cpunumber

       [EINVAL]       Invalid value for cpunumber.  A valid cpunumber is between 0 and 31.

See Also
       stopcpu(2), startcpu(8), stopcpu(8)

																       startcpu(2)

gethostname(2)							System Calls Manual						    gethostname(2)

Name
       gethostname, sethostname - get or set the name of the current host

Syntax
       gethostname(name, namelen)
       char *name;
       int namelen;

       sethostname(name, namelen)
       char *name;
       int namelen;

Description
       The  system call returns the standard host name for the current processor, as previously set by The namelen parameter specifies the size of
       the name array.	The returned name is null-terminated unless insufficient space is provided.

       The system call sets the name of the host machine to be name, which has length namelen.	This call is restricted to the	superuser  and	is
       normally used only when the system is bootstrapped.

Return Values
	0   If the call succeeds, it returns a value of zero.

       -1   If the call fails, a value of -1 is returned and an error code is placed in the global location, errno.

Restrictions
       Host  names  are  limited to 31 characters and may contain only lower case ASCII characters a to z, numbers 0 to 9, dashes (-), underscores
       (_), and periods (.).

Diagnostics
       The system call fails under the following condition:

       [EFAULT]       The name parameter points outside the process's allocated address space.

       The system call fails under the following conditions:

       [EPERM]	      The caller is not the superuser.

       [EINVAL]       The name or namelen parameter is an invalid address.

See Also
       hostname(1), gethostid(2)

																    gethostname(2)