#include <sys/types.h> #include <sys/ipc.h> #include <sys/shm.h> #include "sysvipc_shm.h" extern char sysvipc_userland; extern int __sys_shmctl(int, int, struct shmid_ds *); int shmctl(int shmid, int cmd, struct shmid_ds *buf) { if (sysvipc_userland) return (sysvipc_shmctl(shmid, cmd, buf)); return (__sys_shmctl(shmid, cmd, buf)); }