cmpt_change(3)						     Library Functions Manual						    cmpt_change(3)

NAME

       cmpt_change(), cmpt_get() - set and get process' compartment

SYNOPSIS


   Parameters
	      cid    Compartment ID.

	      pid    Process ID of the target process or for the calling process.

DESCRIPTION

       The and functions query and manipulate the compartment of a process.

       The  function  returns  the given process' compartment ID.  If is passed as the pid parameter, the compartment ID of the calling process is
       returned.

       The function changes the calling process' compartment ID to be the value of cid.

   Security Restrictions
       In order for the function to be effective, the calling process must possess the privilege.  See privileges(5) for  more	information  about
       privileges.

RETURN VALUE

       returns the following values:

	      Successful completion.
		   The function returns a valid compartment ID.
	      Function failed.
		   is set to indicate the error.

       returns the following values:

	      Successful completion.
	      Function failed.
		   is set to indicate the error.

ERRORS

       If any of the following conditions occur, the functions fail and set

	      Invalid compartment ID specified.

	      The function failed to allocate sufficient memory for its operation.

	      The process does not have the
			     privilege.

	      pid	     is not valid.

EXAMPLES

	      #include <errno.h>
	      #include <sys/cmpt.h>

	      main()
	      {
		      cmpt_t c = cmpt_getbyname("init");
		      if (cmpt_change(c) == -1 )
		      {
			      perror("could not enter init compartment");
			      exit(1);
		      }

		      printf("The process is now running in compartment %d
",
			      cmpt_get(0));
	      }

DEPENDENCIES

       These functions are a part of the library.

SEE ALSO

       cmpt_getbynum(3), cmpt_getbyname(3), compartments(4), compartments(5), privileges(5).

																    cmpt_change(3)