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gerrit-public.fairphone.software
/
platform
/
external
/
musl
/
d41cdef9198e635270d30e82be939d4ea0cbce82
/
.
/
src
/
signal
/
sigaddset.c
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#include
<signal.h>
#include
<errno.h>
int
sigaddset
(
sigset_t
*
set
,
int
sig
)
{
unsigned
s
=
sig
-
1
;
if
(
s
>=
_NSIG
-
1
||
sig
-
32U
<
3
)
{
errno
=
EINVAL
;
return
-
1
;
}
set
->
__bits
[
s
/
8
/
sizeof
*
set
->
__bits
]
|=
1UL
<<(
s
&
8
*
sizeof
*
set
->
__bits
-
1
);
return
0
;
}