This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface

       These functions are part of the Spawn option and need not be provided on all implementations.

       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 .

       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 .

IEEE/The Open Group                                   2017                 POSIX_SPAWNATTR_GETSIGDEFAULT(3POSIX)

       The  posix_spawnattr_getsigdefault()  function  shall  obtain the value of the spawn-sigdefault attribute
       from the attributes object referenced by attr.

       The posix_spawnattr_setsigdefault() function shall set the spawn-sigdefault attribute in  an  initialized
       attributes object referenced by attr.

       The  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  spawn-flags  attribute)  by  a  spawn
       operation. The default value of this attribute shall be an empty signal set.

       These functions may fail if:

       EINVAL The value specified by attr is invalid.

       The posix_spawnattr_setsigdefault() function may fail if:

       EINVAL The value of the attribute being set is not valid.

       Thefollowingsectionsareinformative.

       None.

       None.

       posix_spawnattr_getsigdefault, posix_spawnattr_setsigdefault — get and set the spawn-sigdefault attribute
       of a spawn attributes object (ADVANCEDREALTIME)

       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.

       None.

       Upon  successful completion, posix_spawnattr_getsigdefault() shall return zero and store the value of the
       spawn-sigdefault attribute of attr into the object referenced by the sigdefault parameter; otherwise,  an
       error number shall be returned to indicate the error.

       Upon successful completion, posix_spawnattr_setsigdefault() shall return zero; otherwise, an error number
       shall be returned to indicate the error.

posix_spawn(), posix_spawnattr_destroy(), posix_spawnattr_getflags(), posix_spawnattr_getpgroup(),
       posix_spawnattr_getschedparam(), posix_spawnattr_getschedpolicy(), posix_spawnattr_getsigmask()

       The Base Definitions volume of POSIX.1‐2017, <signal.h>, <spawn.h>

       #include <signal.h>
       #include <spawn.h>

       int posix_spawnattr_getsigdefault(const posix_spawnattr_t
           *restrict attr, sigset_t *restrict sigdefault);
       int posix_spawnattr_setsigdefault(posix_spawnattr_t *restrict attr,
           const sigset_t *restrict sigdefault);