freebsd-src/lib/libc/compat-43/sigsetmask.2
Mike Pritchard bf5a138ec4 Update a bunch of man pages to use .Fn instead
of .Nm when referencing funciton names.
1996-08-22 22:05:59 +00:00

83 lines
2.7 KiB
Groff

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.\" @(#)sigsetmask.2 8.1 (Berkeley) 6/2/93
.\"
.Dd June 2, 1993
.Dt SIGSETMASK 2
.Os BSD 4.2
.Sh NAME
.Nm sigsetmask
.Nd set current signal mask
.Sh SYNOPSIS
.Fd #include <signal.h>
.Ft int
.Fn sigsetmask "int mask"
.Fn sigmask signum
.Sh DESCRIPTION
.Bf -symbolic
This interface is made obsoleted by:
.Ef
.Xr sigprocmask 2 .
.Pp
.Fn Sigsetmask
sets the current signal mask
Signals are blocked from delivery if the
corresponding bit in
.Fa mask
is a 1; the macro
.Fn sigmask
is provided to construct the mask for a given
.Fa signum .
.Pp
The system
quietly disallows
.Dv SIGKILL
or
.Dv SIGSTOP
to be blocked.
.Sh RETURN VALUES
The previous set of masked signals is returned.
.Sh SEE ALSO
.Xr sigprocmask 2 ,
.Xr kill 2 ,
.Xr sigaction 2 ,
.Xr sigsuspend 2 ,
.Xr sigvec 2 ,
.Xr sigblock 2 ,
.Xr sigsetops 3
.Sh HISTORY
The
.Fn sigsetmask
function call appeared in
.Bx 4.2
and has been deprecated.