typedef void (*sighandler_t)(int);
void (*bsd_signal(int, void (*)(int)))(int);
int sigisemptyset(const sigset_t *);
-int sigorset (sigset_t *, sigset_t *, sigset_t *);
-int sigandset(sigset_t *, sigset_t *, sigset_t *);
+int sigorset (sigset_t *, const sigset_t *, const sigset_t *);
+int sigandset(sigset_t *, const sigset_t *, const sigset_t *);
#define SA_NOMASK SA_NODEFER
#define SA_ONESHOT SA_RESETHAND
#define SST_SIZE (_NSIG/8/sizeof(long))
-int sigandset(sigset_t *dest, sigset_t *left, sigset_t *right)
+int sigandset(sigset_t *dest, const sigset_t *left, const sigset_t *right)
{
unsigned long i = 0, *d = (void*) dest, *l = (void*) left, *r = (void*) right;
for(; i < SST_SIZE; i++) d[i] = l[i] & r[i];
#define SST_SIZE (_NSIG/8/sizeof(long))
-int sigorset(sigset_t *dest, sigset_t *left, sigset_t *right)
+int sigorset(sigset_t *dest, const sigset_t *left, const sigset_t *right)
{
unsigned long i = 0, *d = (void*) dest, *l = (void*) left, *r = (void*) right;
for(; i < SST_SIZE; i++) d[i] = l[i] | r[i];