(since Linux 2.1.57) Set the parent process death signal of the current process to arg2 (either a signal value in the range 1..maxsig, or 0 to clear). This is the signal that the current process will get when its parent dies. This value is cleared upon a fork().
PR_GET_PDEATHSIG
(since Linux 2.3.15) Read the current value of the parent process death signal into the (int *) arg2.
PR_SET_DUMPABLE
(Since Linux 2.4) Set the state of the flag determining whether core dumps are produced for this process upon delivery of a signal whose default behaviour is to produce a core dump. (Normally this flag is set for a process by default, but it is cleared when a set-UID or set-GID program is executed and also by various system calls that manipulate process UIDs and GIDs). arg2 must be either 0 (process is not dumapable) or 1 (process is dumpable).
PR_GET_DUMPABLE
(Since Linux 2.4) Return (as the function result) the current state of the calling process’s dumpable flag.
PR_SET_KEEPCAPS
Set the state of the process’s "keep capabilities" flag, which determines whether the process’s effective and permitted capability sets are cleared when a change is made to the process’s user IDs such that all of the process’s real, effective, and saved set user IDs become non-zero when at least one of them previously had the value 0. (By default, these credential sets are cleared). arg2 must be either 0 (capabilities are cleared) or 1 (capabilities are kept).
PR_GET_KEEPCAPS
Return (as the function result) the current state of the calling process’s "keep capabilities" flag.
