#include <sys/shm.h>
#include "syscall.h"
#include "ipc.h"

#ifdef SYS_shmat
void* shmat(int id, const void* addr, int flag) {
  return (void*)syscall(SYS_shmat, id, addr, flag);
}
#else
void* shmat(int id, const void* addr, int flag) {
  unsigned long ret;
  ret = syscall(SYS_ipc, IPCOP_shmat, id, flag, &addr, addr);
  return (ret > -(unsigned long)SHMLBA) ? (void*)ret : (void*)addr;
}
#endif