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+'\" et
+.TH POSIX_SPAWNATTR_GETSIGDEFAULT "3P" 2017 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\"
+.SH PROLOG
+This manual page is part of the POSIX Programmer's Manual.
+The Linux implementation of this interface may differ (consult
+the corresponding Linux manual page for details of Linux behavior),
+or the interface may not be implemented on Linux.
+.\"
+.SH NAME
+posix_spawnattr_getsigdefault,
+posix_spawnattr_setsigdefault
+\(em get and set the spawn-sigdefault attribute of a spawn attributes object
+(\fBADVANCED REALTIME\fP)
+.SH SYNOPSIS
+.LP
+.nf
+#include <signal.h>
+#include <spawn.h>
+.P
+int posix_spawnattr_getsigdefault(const posix_spawnattr_t
+    *restrict \fIattr\fP, sigset_t *restrict \fIsigdefault\fP);
+int posix_spawnattr_setsigdefault(posix_spawnattr_t *restrict \fIattr\fP,
+    const sigset_t *restrict \fIsigdefault\fP);
+.fi
+.SH DESCRIPTION
+The
+\fIposix_spawnattr_getsigdefault\fR()
+function shall obtain the value of the
+.IR spawn-sigdefault
+attribute from the attributes object referenced by
+.IR attr .
+.P
+The
+\fIposix_spawnattr_setsigdefault\fR()
+function shall set the
+.IR spawn-sigdefault
+attribute in an initialized attributes object referenced by
+.IR attr .
+.P
+The
+.IR spawn-sigdefault
+attribute represents the set of signals to be forced to default signal
+handling in the new process image (if POSIX_SPAWN_SETSIGDEF is set in
+the
+.IR spawn-flags
+attribute) by a spawn operation. The default value of this attribute
+shall be an empty signal set.
+.SH "RETURN VALUE"
+Upon successful completion,
+\fIposix_spawnattr_getsigdefault\fR()
+shall return zero and store the value of the
+.IR spawn-sigdefault
+attribute of
+.IR attr
+into the object referenced by the
+.IR sigdefault
+parameter; otherwise, an error number shall be returned to indicate the
+error.
+.P
+Upon successful completion,
+\fIposix_spawnattr_setsigdefault\fR()
+shall return zero; otherwise, an error number shall be returned to
+indicate the error.
+.SH ERRORS
+These functions may fail if:
+.TP
+.BR EINVAL
+The value specified by
+.IR attr
+is invalid.
+.P
+The
+\fIposix_spawnattr_setsigdefault\fR()
+function may fail if:
+.TP
+.BR EINVAL
+The value of the attribute being set is not valid.
+.LP
+.IR "The following sections are informative."
+.SH EXAMPLES
+None.
+.SH "APPLICATION USAGE"
+These functions are part of the Spawn option and need not be
+provided on all implementations.
+.SH RATIONALE
+None.
+.SH "FUTURE DIRECTIONS"
+None.
+.SH "SEE ALSO"
+.ad l
+.IR "\fIposix_spawn\fR\^(\|)",
+.IR "\fIposix_spawnattr_destroy\fR\^(\|)",
+.IR "\fIposix_spawnattr_getflags\fR\^(\|)",
+.IR "\fIposix_spawnattr_getpgroup\fR\^(\|)",
+.IR "\fIposix_spawnattr_getschedparam\fR\^(\|)",
+.IR "\fIposix_spawnattr_getschedpolicy\fR\^(\|)",
+.IR "\fIposix_spawnattr_getsigmask\fR\^(\|)"
+.ad b
+.P
+The Base Definitions volume of POSIX.1\(hy2017,
+.IR "\fB<signal.h>\fP",
+.IR "\fB<spawn.h>\fP"
+.\"
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1-2017, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 7, 2018 Edition,
+Copyright (C) 2018 by the Institute of
+Electrical and Electronics Engineers, Inc and The Open Group.
+In the event of any discrepancy between this version and the original IEEE and
+The Open Group Standard, the original IEEE and The Open Group Standard
+is the referee document. The original Standard can be obtained online at
+http://www.opengroup.org/unix/online.html .
+.PP
+Any typographical or formatting errors that appear
+in this page are most likely
+to have been introduced during the conversion of the source files to
+man page format. To report such errors, see
+https://www.kernel.org/doc/man-pages/reporting_bugs.html .