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/* $XConsortium$ */
#include <signal.h>
#include <errno.h>
extern int errno;
sigemptyset(set)
sigset_t *set;
{
*set = 0;
return 0;
}
sigfillset(set)
sigset_t *set;
{
*set = 0xffffffff;
return 0;
}
sigaddset(set, sig)
sigset_t *set;
int sig;
{
if (sig < 1 || sig >= NSIG)
{
errno = EINVAL;
return -1;
}
*set |= (1 << (sig-1));
return 0;
}
sigdelset(set, sig)
sigset_t *set;
int sig;
{
if (sig < 1 || sig >= NSIG)
{
errno = EINVAL;
return -1;
}
*set &= ~(1 << (sig-1));
return 0;
}
sigismember(set, sig)
sigset_t *set;
int sig;
{
if (sig < 1 || sig >= NSIG)
{
errno = EINVAL;
return -1;
}
return ((*set & (1 << (sig-1))) != 0);
}
sigaction(sig, act, oact)
int sig;
struct sigaction *act, *oact;
{
int ret;
/*
* This is what we do for now: zero sa_flags so that the sigaction
* structures can be passed to th BSD sigvec() as if they
* were sigvec structures.
*/
#if 1
/* Put in a trap so we know when assumption becomes wrong */
if (act && act->sa_flags != 0) {
printf("sa_flags != 0\n");
exit(123);
}
#endif
if (act)
act->sa_flags = 0;
ret = sigvec(sig, act, oact);
if (oact)
oact->sa_flags = 0;
return ret;
}
sigprocmask(how, set, oset)
int how;
sigset_t *set, *oset;
{
sigset_t omask;
if (set != 0)
switch (how) {
case SIG_BLOCK :
omask = sigblock(*set);
break;
case SIG_UNBLOCK :
omask = sigblock((sigset_t)0);
omask = sigsetmask(omask & ~*set);
break;
case SIG_SETMASK :
omask = sigsetmask(*set);
break;
default :
errno = EINVAL;
return -1;
}
else
omask = sigblock((sigset_t)0);
if (oset != 0)
*oset = omask;
return 0;
}
/* ARGSUSED */
sigpending(set)
sigset_t *set;
{
#ifdef ENOSYS
errno = ENOSYS;
#else
/*
* BSD4.2 doesn't have a suitable eqivalent to ENOSYS.
*/
errno = EINVAL;
#endif
return -1;
}
sigsuspend(mask)
sigset_t *mask;
{
(void) sigpause(*mask);
return -1;
}
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