sigblock
(void) sigsetmask(sigblock(0) & ~(1 << (SIGALRM - 1)));
omask = sigblock(sigmask(SIGQUIT)|sigmask(SIGHUP));
oldmask = sigblock(sigmask(SIGURG) | sigmask(SIGUSR1));
mask = sigblock(sigmask(SIGWINCH));
omask = sigblock(mask(SIGINT)|mask(SIGQUIT)|mask(SIGTERM));
sigblock(sigmask(SIGALRM));
omask = sigblock(sigmask(SIGCHLD));
(void) sigblock(sigmask(SIGINT));
omask = sigblock(sigmask(SIGINT));
omask = sigblock(0);
(void) sigsetmask(sigblock(0) & ~sigmask(SIGINT));
(void) sigblock(sigmask(SIGINT));
omask = sigblock(sigmask(SIGINT));
omask = sigblock(sigmask(SIGINT));
omask = sigblock(sigmask(SIGINT));\
omask = sigblock(sigmask(SIGINT));
(void) sigsetmask(sigblock(0) & ~sigmask(SIGINT));
(void) sigblock(sigmask(SIGINT));
(void) sigsetmask(sigblock(0) & ~ sigmask(SIGINT));
(void) sigblock(sigmask(SIGINT));
(void) sigsetmask(sigblock(0) & ~sigmask(SIGINT));
(void) sigblock(sigmask(SIGINT));
omask = sigblock(sigmask(SIGINT)) & ~sigmask(SIGINT);
(void) sigsetmask(sigblock(0) & ~sigmask(SIGINT));
omask = sigblock(sigmask(SIGCHLD));
omask = sigblock(sigmask(SIGCHLD));
sigttou = sigblock(sigmask(SIGTTOU) |
omask = sigblock(sigmask(SIGCHLD));
omask = sigblock(sigmask(SIGCHLD));
omask = sigblock(sigmask(SIGCHLD));
omask = sigblock(sigmask(SIGCHLD));
omask = sigblock(sigmask(SIGCHLD));
omask = sigblock(omask) & ~omask;
sv.mask = sigblock(sigmask(SIGCHLD));
sigttou = sigblock (
(void) sigsetmask(sigblock(0) & ~ sigmask(SIGINT));
static uint_t sigblock(uint_t);
omask = sigblock(mask(SIGINT)|mask(SIGQUIT)|mask(SIGHUP));
sigset(SIGINT, ignintr ? intack : collrub), sigblock(sigmask(SIGINT));
sigset(SIGHUP, collrub), sigblock(sigmask(SIGHUP));
int omask = sigblock(0) &~ (sigmask(SIGINT)|sigmask(SIGHUP));
omask = sigblock(sigmask(SIGHUP) |
return (sigblock(sigmask(sig)) & sigmask(sig)) != 0;
return (sigsetmask(sigblock(0) & ~sigmask(sig)) & sigmask(sig)) != 0;
(void) sigblock(mask);
oset = sigblock(~0);
mask = sigblock(sigmask(SIGINT));
mask = sigblock(sigmask(SIGINT));
int mask = sigblock(0);
extern int sigblock(int);
(void) sigsetmask(sigblock(0) &~ sigmask(SIGTSTP));
(void) sigblock(sigmask(SIGTSTP));