[LTP] [PATCH] semctl01.c: Pass the correct parameter

[DAN LI <li.dan@cn.fujitsu.com>]

For SEM_STAT, the semid argument is not a semaphore identifier,  but instead an
index into the kernel’s internal array that maintains information about all
semaphore sets on the system.

Pass a correct index of the kernel' internal array intead of a semaphores id when
testing feature SEM_STAT.

Signed-off-by: DAN LI <li.dan@cn.fujitsu.com>
---
 testcases/kernel/syscalls/ipc/semctl/semctl01.c | 28 +++++++++++++++++++------
 1 file changed, 22 insertions(+), 6 deletions(-)

diff --git a/testcases/kernel/syscalls/ipc/semctl/semctl01.c b/testcases/kernel/syscalls/ipc/semctl/semctl01.c
index 687d909..aee6ccf 100644
--- a/testcases/kernel/syscalls/ipc/semctl/semctl01.c
+++ b/testcases/kernel/syscalls/ipc/semctl/semctl01.c
@@ -52,6 +52,8 @@ char *TCID = "semctl01";
 int TST_TOTAL = 13;

 static int sem_id_1 = -1;
+static int sem_id;
+static int sem_index;

 static int sync_pipes[2];

@@ -67,12 +69,12 @@ static void pid_setup(void), func_pid(int);
 static void func_gval(int);
 static void sall_setup(void), func_sall(void);
 static void func_sval(void);
-static void func_rmid(void);
+static void rmid_setup(void), func_rmid(void);
 static void child_cnt(void);
 static void child_pid(void);
 static void func_iinfo(int);
 static void func_sinfo(void);
-static void func_sstat(int);
+static void sstat_setup(void), func_sstat(int);

 static struct semid_ds buf;
 static struct seminfo ipc_buf;
@@ -117,8 +119,8 @@ static struct test_case_t {
 	{SEM4, SETVAL, func_sval, SEMUN_CAST INCVAL, NULL},
 	{0, IPC_INFO, func_iinfo, SEMUN_CAST & ipc_buf, NULL},
 	{0, SEM_INFO, func_sinfo, SEMUN_CAST & ipc_buf, NULL},
-	{0, SEM_STAT, func_sstat, SEMUN_CAST & buf, NULL},
-	{0, IPC_RMID, func_rmid, SEMUN_CAST & buf, NULL},
+	{0, SEM_STAT, func_sstat, SEMUN_CAST & buf, sstat_setup},
+	{0, IPC_RMID, func_rmid, SEMUN_CAST & buf, rmid_setup},
 };

 int main(int argc, char *argv[])
@@ -538,6 +540,11 @@ static void func_sval(void)
 		tst_resm(TPASS, "semaphore value is correct");
 }

+static void rmid_setup(void)
+{
+	sem_id_1 = sem_id;
+}
+
 /*
  * func_rmid() - check the functionality of the IPC_RMID command with semctl()
  */
@@ -560,10 +567,13 @@ static void func_rmid(void)

 static void func_iinfo(int hidx)
 {
-	if (hidx >= 0)
+	if (hidx >= 0) {
+		sem_index = hidx;
 		tst_resm(TPASS, "the highest index is correct");
-	else
+	} else {
+		sem_index = 0;
 		tst_resm(TFAIL, "the highest index is incorrect");
+	}
 }

 static void func_sinfo(void)
@@ -574,6 +584,12 @@ static void func_sinfo(void)
 		tst_resm(TPASS, "number of semaphore sets is correct");
 }

+static void sstat_setup(void)
+{
+	sem_id = sem_id_1;
+	sem_id_1 = sem_index;
+}
+
 static void func_sstat(int semidx)
 {
 	if (semidx >= 0)
-- 
1.7.11.rc0

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