From f22db4e75305057a49ee64e509986dc3a76c3336 Mon Sep 17 00:00:00 2001
From: Fei Jie <feij.fnst@cn.fujitsu.com>
Date: Mon, 18 Apr 2016 15:10:53 +0800
Subject: [PATCH] tests: add semop.test

* tests/semop.c: New file.
* tests/semop.test: New test.
* tests/.gitignore: Add semop.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add semop.test.
---
 tests/.gitignore  |  1 +
 tests/Makefile.am |  2 ++
 tests/semop.c     | 54 +++++++++++++++++++++++++++++++++++++++++++++++
 tests/semop.test  |  6 ++++++
 4 files changed, 63 insertions(+)
 create mode 100644 tests/semop.c
 create mode 100755 tests/semop.test

diff --git a/tests/.gitignore b/tests/.gitignore
index f3ee6294..3d1dbef7 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -138,6 +138,7 @@ seccomp-filter
 seccomp-filter-v
 seccomp-strict
 select
+semop
 sendfile
 sendfile64
 set_ptracer_any
diff --git a/tests/Makefile.am b/tests/Makefile.am
index e9cd6254..f31b6007 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -188,6 +188,7 @@ check_PROGRAMS = \
 	seccomp-filter-v \
 	seccomp-strict \
 	select \
+	semop \
 	sendfile \
 	sendfile64 \
 	set_ptracer_any \
@@ -394,6 +395,7 @@ DECODER_TESTS = \
 	seccomp-filter.test \
 	seccomp-strict.test \
 	select.test \
+	semop.test \
 	sendfile.test \
 	sendfile64.test \
 	sethostname.test \
diff --git a/tests/semop.c b/tests/semop.c
new file mode 100644
index 00000000..214ce328
--- /dev/null
+++ b/tests/semop.c
@@ -0,0 +1,54 @@
+#include "tests.h"
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/sem.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+union semun
+{
+	int val;
+	struct semid_ds *buf;
+	unsigned short *array;
+	struct seminfo *__buf;
+};
+
+static int id = -1;
+
+static void
+cleanup(void)
+{
+	semctl(id, 0, IPC_RMID, 0);
+	id = -1;
+}
+
+int
+main(void)
+{
+	id = semget(IPC_PRIVATE, 1, 0600);
+	if (id < 0)
+		perror_msg_and_skip("semget");
+	atexit(cleanup);
+
+	union semun sem_union = { .val = 0 };
+	if (semctl(id, 0, SETVAL, sem_union) == -1)
+		perror_msg_and_skip("semctl");
+
+	struct sembuf *const sem_b = tail_alloc(sizeof(*sem_b));
+	sem_b->sem_num = 0;
+	sem_b->sem_op = 1;
+	sem_b->sem_flg = SEM_UNDO;
+
+	if (semop(id, sem_b, 1))
+		perror_msg_and_skip("semop, 1");
+	printf("semop(%d, [{0, 1, SEM_UNDO}], 1) = 0\n", id);
+
+	sem_b->sem_op = -1;
+	if (semop(id, sem_b, 1))
+		perror_msg_and_skip("semop, -1");
+	printf("semop(%d, [{0, -1, SEM_UNDO}], 1) = 0\n", id);
+
+	puts("+++ exited with 0 +++");
+	return 0;
+}
diff --git a/tests/semop.test b/tests/semop.test
new file mode 100755
index 00000000..7e8f32cd
--- /dev/null
+++ b/tests/semop.test
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+# Check semop syscall decoding.
+
+. "${srcdir=.}/init.sh"
+run_strace_match_diff -a32
-- 
2.40.0