PREOPEN(3PROC) | Process Control Library Functions | PREOPEN(3PROC) |
Preopen
—
#include <libproc.h>
int
Preopen
(struct ps_prochandle
*P);
Preopen
() function is used to regain control of the
process represented by the handle P. A loss of control
is indicated by the Pstatus(3PROC)
function returning the value PS_LOST
. This may occur
when the controlled process performs an
exec(2) of a setuid or setgid binary or
one where the controlling process cannot read the object file. For more
information on this, see the PROGRAMMING NOTES section of
proc(5).
If successful, the controlling process will obtain control of the process specified by P. If it fails, the controlling process should release the handle with Prelease(3PROC). Note there are occasions where due to permissions it may not be possible to obtain control again.
Preopen
() function
returns 0. Otherwise, -1 is returned.
May 11, 2016 | OmniOS |