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SIGSTOP can't be masked (report by Jaap Weel).

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This commit is contained in:
Ben Gras 2005-12-12 13:11:22 +00:00
parent 32d5141935
commit 2f23951221
1 changed files with 4 additions and 0 deletions
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4
servers/pm/signal.c
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@ -113,6 +113,8 @@ PUBLIC int do_sigprocmask()
* *
* The library interface must set SIG_INQUIRE if the 'act' argument * The library interface must set SIG_INQUIRE if the 'act' argument
* is NULL. * is NULL.
*
* KILL and STOP can't be masked.
*/ */
int i; int i;
@ -122,6 +124,7 @@ PUBLIC int do_sigprocmask()
switch (m_in.sig_how) { switch (m_in.sig_how) {
case SIG_BLOCK: case SIG_BLOCK:
sigdelset((sigset_t *)&m_in.sig_set, SIGKILL); sigdelset((sigset_t *)&m_in.sig_set, SIGKILL);
sigdelset((sigset_t *)&m_in.sig_set, SIGSTOP);
for (i = 1; i <= _NSIG; i++) { for (i = 1; i <= _NSIG; i++) {
if (sigismember((sigset_t *)&m_in.sig_set, i)) if (sigismember((sigset_t *)&m_in.sig_set, i))
sigaddset(&mp->mp_sigmask, i); sigaddset(&mp->mp_sigmask, i);
@ -138,6 +141,7 @@ PUBLIC int do_sigprocmask()
case SIG_SETMASK: case SIG_SETMASK:
sigdelset((sigset_t *) &m_in.sig_set, SIGKILL); sigdelset((sigset_t *) &m_in.sig_set, SIGKILL);
sigdelset((sigset_t *) &m_in.sig_set, SIGSTOP);
mp->mp_sigmask = (sigset_t) m_in.sig_set; mp->mp_sigmask = (sigset_t) m_in.sig_set;
check_pending(mp); check_pending(mp);
break; break;