POSIX_SPAWNATTR_GETSIGIGNORE_NP(3C) Standard C Library Functions

NAME

posix_spawnattr_getsigignore_np, posix_spawnattr_setsigignore_np - get
and set spawn-sigignore attribute of spawn attributes object

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

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

int
posix_spawnattr_getsigignore_np(const posix_spawnattr_t *restrict attr,
sigset_t *restrict sigignore);

int
posix_spawnattr_setsigignore_np(posix_spawnattr_t *restrict attr,
const sigset_t *restrict sigignore);

DESCRIPTION

The posix_spawnattr_getsigignore_np() function obtains the value of the
spawn-sigignore attribute from the attributes object referenced by
attr.

The posix_spawnattr_setsigignore_np() function sets the spawn-sigignore
attribute in an initialized attributes object referenced by attr.

The spawn-sigignore attribute represents the set of signals to be
forced to be ignored in the new process image (if
POSIX_SPAWN_SETSIGIGN_NP is set in the spawn-flags attribute) by a
spawn operation. The default value of this attribute is an empty
signal set.

RETURN VALUES

Upon successful completion, posix_spawnattr_getsigignore_np() returns 0
and stores the value of the spawn-sigignore attribute of attr into the
object referenced by the sigignore parameter. Otherwise, an error
value is returned to indicate the error.

Upon successful completion, posix_spawnattr_setsigignore_np() returns
0. Otherwise, an error value is returned to indicate the error.

ERRORS

These functions may fail if:

EINVAL The value specified by attr is invalid.

The posix_spawnattr_setsigignore_np() function may fail if:

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

INTERFACE STABILITY

Committed

MT-LEVEL
MT-Safe

SEE ALSO

posix_spawn(3C), posix_spawnattr_destroy(3C),
posix_spawnattr_getflags(3C), posix_spawnattr_getpgroup(3C),
posix_spawnattr_getschedparam(3C), posix_spawnattr_getschedpolicy(3C),
posix_spawnattr_setsigdefault(3C), posix_spawnattr_setsigmask(3C),
attributes(7)

NOTES

The POSIX_SPAWN_SETSIGIGN_NP flag and the
posix_spawnattr_getsigignore_np() and posix_spawnattr_setsigignore_np()
functions are non-portable illumos extensions to the posix_spawn(3C)
and posix_spawnp(3C) interfaces.

illumos July 4, 2026 illumos