The posix_spawnattr_getsigdefault() function shall obtain the value of
the spawn-sigdefault attribute from the attributes object referenced by
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.
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.
Portions of this text are reprinted and reproduced in electronic form from IEEE
Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable
Operating System Interface (POSIX), The Open Group Base Specifications Issue
6, Copyright (C) 2001-2003 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