1 files changed, 90 insertions, 0 deletions
diff --git a/lib/libc/gen/semctl.c b/lib/libc/gen/semctl.c
new file mode 100644
index 000000000000..374f01508236
--- /dev/null
+++ b/lib/libc/gen/semctl.c
@@ -0,0 +1,90 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2002 Doug Rabson
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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 AUTHOR 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 AUTHOR 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.
+ *
+ */
+
+
+#ifndef NO_COMPAT7
+#define _WANT_SEMUN_OLD
+#endif
+#define _WANT_SEMUN
+
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/sem.h>
+#include <stdarg.h>
+#include <stdlib.h>
+
+int	__semctl(int semid, int semnum, int cmd, union semun *arg);
+#ifndef NO_COMPAT7
+int	freebsd7___semctl(int semid, int semnum, int cmd, union semun_old *arg);
+int	freebsd7_semctl(int semid, int semnum, int cmd, ...);
+#endif
+
+int
+semctl(int semid, int semnum, int cmd, ...)
+{
+	va_list ap;
+	union semun semun;
+	union semun *semun_ptr;
+
+	va_start(ap, cmd);
+	if (cmd == IPC_SET || cmd == IPC_STAT || cmd == GETALL
+	    || cmd == SETVAL || cmd == SETALL) {
+		semun = va_arg(ap, union semun);
+		semun_ptr = &semun;
+	} else {
+		semun_ptr = NULL;
+	}
+	va_end(ap);
+
+	return (__semctl(semid, semnum, cmd, semun_ptr));
+}
+
+#ifndef NO_COMPAT7
+int
+freebsd7_semctl(int semid, int semnum, int cmd, ...)
+{
+	va_list ap;
+	union semun_old semun;
+	union semun_old *semun_ptr;
+
+	va_start(ap, cmd);
+	if (cmd == IPC_SET || cmd == IPC_STAT || cmd == GETALL
+	    || cmd == SETVAL || cmd == SETALL) {
+		semun = va_arg(ap, union semun_old);
+		semun_ptr = &semun;
+	} else {
+		semun_ptr = NULL;
+	}
+	va_end(ap);
+
+	return (freebsd7___semctl(semid, semnum, cmd, semun_ptr));
+}
+
+__sym_compat(semctl, freebsd7_semctl, FBSD_1.0);
+#endif