Test POSIX 1003.1 2016 chapter 13 "Headers".

And fix one thing that this found: apparently <stdlib.h> should also
make the various *WAIT* macros available.

Bug: N/A
Test: builds
Change-Id: Id879bf3c1bddd1170261a809e7280150a74d6b3d
diff --git a/tests/headers/posix/sys_msg_h.c b/tests/headers/posix/sys_msg_h.c
new file mode 100644
index 0000000..b908188
--- /dev/null
+++ b/tests/headers/posix/sys_msg_h.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/msg.h>
+
+#include "header_checks.h"
+
+static void sys_msg_h() {
+  TYPE(msgqnum_t);
+  TYPE(msglen_t);
+
+  MACRO(MSG_NOERROR);
+
+  TYPE(struct msqid_ds);
+  STRUCT_MEMBER(struct msqid_ds, struct ipc_perm, msg_perm);
+  STRUCT_MEMBER(struct msqid_ds, msgqnum_t, msg_qnum);
+  STRUCT_MEMBER(struct msqid_ds, msglen_t, msg_qbytes);
+  STRUCT_MEMBER(struct msqid_ds, pid_t, msg_lspid);
+  STRUCT_MEMBER(struct msqid_ds, pid_t, msg_lrpid);
+  STRUCT_MEMBER(struct msqid_ds, time_t, msg_stime);
+  STRUCT_MEMBER(struct msqid_ds, time_t, msg_rtime);
+  STRUCT_MEMBER(struct msqid_ds, time_t, msg_ctime);
+
+  TYPE(pid_t);
+  TYPE(size_t);
+  TYPE(ssize_t);
+  TYPE(time_t);
+
+  FUNCTION(msgctl, int (*f)(int, int, struct msqid_ds*));
+  FUNCTION(msgget, int (*f)(key_t, int));
+  FUNCTION(msgrcv, ssize_t (*f)(int, void*, size_t, long, int));
+  FUNCTION(msgsnd, int (*f)(int, const void*, size_t, int));
+}