centos man page for ipcperms

IPCPERMS(9)						       Kernel IPC facilities						       IPCPERMS(9)

NAME
       ipcperms - check IPC permissions

SYNOPSIS
       int ipcperms(struct ipc_namespace * ns, struct kern_ipc_perm * ipcp, short flag);

ARGUMENTS
       ns
	   IPC namespace

       ipcp
	   IPC permission set

       flag
	   desired permission set.

DESCRIPTION
       Check user, group, other permissions for access to ipc resources. return 0 if allowed

       flag will most probably be 0 or S_...UGO from <linux/stat.h>

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							       IPCPERMS(9)