diff --git a/sysdeps/unix/sysv/linux/semctl.c b/sysdeps/unix/sysv/linux/semctl.c
index bdf31ca..03c56c6 100644
--- a/sysdeps/unix/sysv/linux/semctl.c
+++ b/sysdeps/unix/sysv/linux/semctl.c
@@ -58,6 +58,15 @@ __new_semctl (int semid, int semnum, int cmd, ...)
arg = va_arg (ap, union semun);
va_end (ap);
break;
+ case IPC_RMID: /* arg ignored. */
+ case GETNCNT:
+ case GETPID:
+ case GETVAL:
+ case GETZCNT:
+ break;
+ default:
+ __set_errno (EINVAL);
+ return -1;
}
#ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
diff --git a/sysvipc/test-sysvipc.h b/sysvipc/test-sysvipc.h
new file mode 100644
index 0000000..d7ed496
--- /dev/null
+++ b/sysvipc/test-sysvipc.h
@@ -0,0 +1,85 @@
+/* Basic definition for Sysv IPC test functions.
+ Copyright (C) 2020 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ . */
+
+#ifndef _TEST_SYSV_H
+#define _TEST_SYSV_H
+
+#include
+#include
+#include
+#include
+#include
+
+/* Return the first invalid command SysV IPC command from common shared
+ between message queue, shared memory, and semaphore. */
+static inline int
+first_common_invalid_cmd (void)
+{
+ const int common_cmds[] = {
+ IPC_RMID,
+ IPC_SET,
+ IPC_STAT,
+ IPC_INFO,
+ };
+
+ int invalid = 0;
+ for (int i = 0; i < array_length (common_cmds); i++)
+ {
+ if (invalid == common_cmds[i])
+ {
+ invalid++;
+ i = 0;
+ }
+ }
+
+ return invalid;
+}
+
+/* Return the first invalid command SysV IPC command for semaphore. */
+static inline int
+first_sem_invalid_cmd (void)
+{
+ const int sem_cmds[] = {
+ GETPID,
+ GETVAL,
+ GETALL,
+ GETNCNT,
+ GETZCNT,
+ SETVAL,
+ SETALL,
+ SEM_STAT,
+ SEM_INFO,
+#ifdef SEM_STAT_ANY
+ SEM_STAT_ANY,
+#endif
+ };
+
+ int invalid = first_common_invalid_cmd ();
+ for (int i = 0; i < array_length (sem_cmds); i++)
+ {
+ if (invalid == sem_cmds[i])
+ {
+ invalid++;
+ i = 0;
+ }
+ }
+
+ return invalid;
+}
+
+#endif /* _TEST_SYSV_H */
diff --git a/sysvipc/test-sysvsem.c b/sysvipc/test-sysvsem.c
index d197772..43a1460 100644
--- a/sysvipc/test-sysvsem.c
+++ b/sysvipc/test-sysvsem.c
@@ -25,6 +25,8 @@
#include
#include
+#include
+
#include
#include
#include
@@ -80,6 +82,9 @@ do_test (void)
FAIL_EXIT1 ("semget failed (errno=%d)", errno);
}
+ TEST_COMPARE (semctl (semid, 0, first_sem_invalid_cmd (), NULL), -1);
+ TEST_COMPARE (errno, EINVAL);
+
/* Get semaphore kernel information and do some sanity checks. */
struct semid_ds seminfo;
if (semctl (semid, 0, IPC_STAT, (union semun) { .buf = &seminfo }) == -1)