PSETZONEID(3PROC) Process Control Library Functions PSETZONEID(3PROC)

NAME


Psetzoneid - change processes zone id

LIBRARY


Process Control Library (libproc, -lproc)

SYNOPSIS


#include <libproc.h>

int
Psetzoneid(struct ps_prochandle *P, zoneid_t zoneid);

DESCRIPTION


The Psetzoneid() function moves the process handle P into the zone
specified by zoneid. A process that is in the non-global zone may only
move between the global zone and its original zone. A process that is in
the global zone may not use this interface to enter a non-global zone.
This function will fail if called from a non-global zone. This function
only manipulates the processes credentials.

Care should be taken when moving a process around temporarily, such that if
the process that is manipulating P dies, it does not cause P to resume
running while still in the global zone. It is suggested that the PR_KLC
flag is set with Psetflags(3PROC) which will cause the process to terminate
if the process that holds P unexpectedly terminates. See proc(4) for more
information on the PR_KLC flag.

Note, only active processes may change their zone. It is an error to call
this function on process handles that correspond to core files, zombie
processes, or files.

RETURN VALUES


Upon successful completion, the Psetzoneid() function returns 0 and changes
the zone for P. Otherwise, -1 is returned and errno is set.

ERRORS


For a full list of possible errors see the DIAGNOSTICS section in proc(4).

The Psetzoneid() function will fail if:

EINVAL zoneid does not correspond to an existing zone or the
zone id is not the global zone or the original zone of
P.

EPERM The caller does not hold the required privileges for
zone configuration.

INTERFACE STABILITY


Uncommitted

MT-LEVEL
See LOCKING in libproc(3LIB).

SEE ALSO


libproc(3LIB), proc(4), privileges(5), zones(5)

illumos May 11, 2016 illumos