#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
#include <stdarg.h>

#include "sysvipc_sem.h"

extern char sysvipc_userland;
extern int __sys___semctl(int, int, int, union semun *);

int
semctl(int semid, int semnum, int cmd, ...)
{
        va_list ap;
        union semun semun = { 0 };
        union semun *semun_ptr = NULL;

        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;
        }
        va_end(ap);

        if (sysvipc_userland)
                return (sysvipc___semctl(semid, semnum, cmd, semun_ptr));
        return (__sys___semctl(semid, semnum, cmd, semun_ptr));
}