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Full Discussion: System V or POSIX
Top Forums UNIX for Advanced & Expert Users System V or POSIX Post 302420065 by jlliagre on Monday 10th of May 2010 12:50:00 PM
Old 05-10-2010
Please provide more details about what part of these standards you are talking about.

Solaris and HP-UX are both based on System V source code and POSIX compliants. Gnu/Linux isn't based on System V but tend to be closer to its semantics than it used to be, depending on the distributions too. Gnu/Linux is also probably close to unofficially comply with many POSIX standards.
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IPC(2)							     Linux Programmer's Manual							    IPC(2)

NAME
ipc - System V IPC system calls SYNOPSIS
int ipc(unsigned int call, int first, int second, int third, void *ptr, long fifth); DESCRIPTION
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(). CONFORMING TO
ipc() is Linux specific, and should not be used in programs intended to be portable. SEE ALSO
msgctl(2), msgget(2), msgrcv(2), msgsnd(2), semctl(2), semget(2), semop(2), shmat(2), shmctl(2), shmdt(2), shmget(2) Linux 1.2.4 1995-04-15 IPC(2)
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