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-'\" t
-.\" Copyright (c) 2007 by Michael Kerrisk <mtk.manpages@gmail.com>
-.\"
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-.\" manual provided the copyright notice and this permission notice are
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-.\" manual under the conditions for verbatim copying, provided that the
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-.\" Since the Linux kernel and libraries are constantly changing, this
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-.\" responsibility for errors or omissions, or for damages resulting from
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-.\" which is licensed free of charge, as they might when working
-.\" professionally.
-.\"
-.\" Formatted or processed versions of this manual, if unaccompanied by
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-.\"
-.TH SGETMASK 2  2014-12-31 "Linux" "Linux Programmer's Manual"
-.SH NAME
-sgetmask, ssetmask \- manipulation of signal mask (obsolete)
-.SH SYNOPSIS
-.B "long sgetmask(void);"
-.sp
-.BI "long ssetmask(long " newmask );
-
-.IR Note :
-There are no glibc wrappers for these system calls; see NOTES.
-.SH DESCRIPTION
-These system calls are obsolete.
-.IR "Do not use them" ;
-use
-.BR sigprocmask (2)
-instead.
-
-.BR sgetmask ()
-returns the signal mask of the calling process.
-
-.BR ssetmask ()
-sets the signal mask of the calling process to the value given in
-.IR newmask .
-The previous signal mask is returned.
-
-The signal masks dealt with by these two system calls
-are plain bit masks (unlike the
-.I sigset_t
-used by
-.BR sigprocmask (2));
-use
-.BR sigmask (3)
-to create and inspect these masks.
-.SH RETURN VALUE
-.BR sgetmask ()
-always successfully returns the signal mask.
-.BR ssetmask ()
-always succeeds, and returns the previous signal mask.
-.SH ERRORS
-These system calls always succeed.
-.SH VERSIONS
-Since Linux 3.16,
-.\" f6187769dae48234f3877df3c4d99294cc2254fa
-support for these system calls is optional,
-depending on whether the kernel was built with the
-.B CONFIG_SGETMASK_SYSCALL
-option.
-.SH CONFORMING TO
-These system calls are Linux-specific.
-.SH NOTES
-Glibc does not provide wrappers for these obsolete system calls;
-in the unlikely event that you want to call them, use
-.BR syscall (2).
-
-These system calls are unaware of signal numbers greater than 31
-(i.e., real-time signals).
-
-These system calls do not exist on x86-64.
-
-It is not possible to block
-.B SIGSTOP
-or
-.BR SIGKILL .
-.SH SEE ALSO
-.BR sigprocmask (2),
-.BR signal (7)
-.SH COLOPHON
-This page is part of release 3.79 of the Linux
-.I man-pages
-project.
-A description of the project,
-information about reporting bugs,
-and the latest version of this page,
-can be found at
-\%http://www.kernel.org/doc/man\-pages/.