Function patchBSDMask

src/signalwrappers.cpp:67–73

# define sigmask(sig) ((int)(1u << ((sig) - 1)))
#endif
static int
patchBSDMask(int mask)
{
  const int allowedMask = ~sigmask(bannedSignalNumber());

  return mask & allowedMask;
}

static inline void
patchBSDUserMask(int how, const int mask, int *oldmask)