int
pledge_fail(struct proc *p, int error, uint64_t code)
{
char *codes = "";
int i;
struct sigaction sa;
/* Print first matching pledge */
for (i = 0; code && pledgenames[i].bits != 0; i++)
if (pledgenames[i].bits & code) {
codes = pledgenames[i].name;
break;
}
printf("%s(%d): syscall %d \"%s\"\n", p->p_comm, p->p_pid,
p->p_pledge_syscall, codes);
#ifdef KTRACE
if (KTRPOINT(p, KTR_PLEDGE))
ktrpledge(p, error, code, p->p_pledge_syscall);
#endif
/* Send uncatchable SIGABRT for coredump */
memset(&sa, 0, sizeof sa);
sa.sa_handler = SIG_DFL;
setsigvec(p, SIGABRT, &sa);
psignal(p, SIGABRT);
p->p_p->ps_pledge = 0; /* Disable all PLEDGE_ flags */
return (error);
}
/*
* Generalized interface signal handler.
*/
sigvec()
{
register struct a {
int signo;
struct sigvec *nsv;
struct sigvec *osv;
} *uap = (struct a *)u.u_ap;
struct sigvec vec;
register struct sigvec *sv;
register int sig;
int bit;
sig = uap->signo;
if (sig <= 0 || sig >= NSIG || sig == SIGKILL || sig == SIGSTOP) {
u.u_error = EINVAL;
return;
}
sv = &vec;
if (uap->osv) {
sv->sv_handler = u.u_signal[sig];
sv->sv_mask = u.u_sigmask[sig];
bit = sigmask(sig);
sv->sv_flags = 0;
if ((u.u_sigonstack & bit) != 0)
sv->sv_flags |= SV_ONSTACK;
if ((u.u_sigintr & bit) != 0)
sv->sv_flags |= SV_INTERRUPT;
u.u_error =
copyout((caddr_t)sv, (caddr_t)uap->osv, sizeof (vec));
if (u.u_error)
return;
}
if (uap->nsv) {
u.u_error =
copyin((caddr_t)uap->nsv, (caddr_t)sv, sizeof (vec));
if (u.u_error)
return;
if (sig == SIGCONT && sv->sv_handler == SIG_IGN) {
u.u_error = EINVAL;
return;
}
setsigvec(sig, sv);
}
}
