[libc-commits] [libc] [libc][sys] add header and functions for sys ipc (PR #182700)

[Alexey Samsonov via libc-commits]

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@@ -0,0 +1,33 @@
+//===-- Definition of struct ipc_perm -------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_TYPES_STRUCT_IPC_PERM_H
+#define LLVM_LIBC_TYPES_STRUCT_IPC_PERM_H
+
+#include "gid_t.h"
+#include "key_t.h"
+#include "uid_t.h"
+
+#ifdef __linux__
+struct ipc_perm {
+  key_t __key;
+  uid_t uid;
+  gid_t gid;
+  uid_t cuid;
+  gid_t cgid;
+  unsigned short mode;
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vonosmas wrote:

Shouldn't this be `mode_t`? (https://man7.org/linux/man-pages/man0/sys_ipc.h.0p.html)

Also, I wonder why you need to specify the rest of the fields here (e.g. padding/unused).

https://github.com/llvm/llvm-project/pull/182700