ipc - System V IPC system calls
int ipc(unsigned int call, int first, int second, int third,
void *ptr, long fifth);
ipc is a common kernel entry point for the System V IPC
calls for messages, semaphores, and shared memory. call
determines which IPC function to invoke; the other arguments
are passed through to the appropriate call.
User programs should call the appropriate functions by their
usual names. Only standard library implementors and kernel
hackers need to know about ipc.
ipc is Linux specific, and should not be used in programs
intended to be portable.
msgctl(2), msgget(2), msgrcv(2), msgsnd(2), semctl(2),
semget(2), semop(2), shmat(2), shmctl(2), shmdt(2),