sigblock
t = sigblock(sigmask(SIGCHLD));
omask = sigblock(mask);
omask = sigblock(mask);
oset = sigblock(~0);
mask = sigblock(sigmask(SIGINT));
mask = sigblock(sigmask(SIGINT));
int mask = sigblock(0);
int sigblock(int);
(void)__libc_sigprocmask(SIG_UNBLOCK, &sigblock, NULL);
sigset_t sigblock, osigblock;
sigemptyset(&sigblock);
sigaddset(&sigblock, SIGCHLD);
(void)__libc_sigprocmask(SIG_BLOCK, &sigblock, &osigblock);
int sigblock;
curthread->sigblock++;
if (--curthread->sigblock == 0)
if (curthread->sigblock > 0) {
curthread->sigblock++;
omask = sigblock(sigmask(SIGHUP));
omask = sigblock(sigmask(SIGHUP)); /* prevent reconfig's */
omask = sigblock(sigmask(SIGHUP));
omask = sigblock(sigmask(SIGHUP)|sigmask(SIGUSR1)|sigmask(SIGUSR2));
omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP));
{ compat(AS(osigblock_args),sigblock), .sy_auevent = AUE_NULL, .sy_flags = SYF_CAPENABLED, .sy_thrcnt = SY_THR_STATIC }, /* 109 = old sigblock */
{ compat(AS(osigblock_args),sigblock), .sy_auevent = AUE_NULL, .sy_flags = SYF_CAPENABLED, .sy_thrcnt = SY_THR_STATIC }, /* 109 = old sigblock */
omask = sigblock(sigmask(SIGALRM));
omask = sigblock(sigmask(SIGALRM));
omask = sigblock(sigmask(SIGALRM));
omask = sigblock(sigmask(SIGALRM));
omask = sigblock(sigmask(SIGCHLD));
oldmask = sigblock(sigmask(SIGALRM));
sigsetmask(sigblock(0) & ~(1 << (SIGTSTP - 1)));
omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP));
omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP));
omask = sigblock(SIGBLOCK);
omask = sigblock(SIGBLOCK);
omask = sigblock(SIGBLOCK);
omask = sigblock(SIGBLOCK);
(void) sigblock(SIGBLOCK);
sigblock(sigmask(SIGPIPE));
omask = sigblock(sigmask(SIGALRM));