#include <signal.h>
-#include <stddef.h>
-int sigwait(const sigset_t *mask, int *sig)
+int sigwait(const sigset_t *restrict mask, int *restrict sig)
{
siginfo_t si;
- if (sigtimedwait(mask, &si, NULL) < 0)
+ if (sigtimedwait(mask, &si, 0) < 0)
return -1;
*sig = si.si_signo;
return 0;