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errno: add new ERRNO_IS_NOT_SUPPORTED() helper

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This commit is contained in:
Lennart Poettering 2019-07-15 13:32:03 +02:00
parent 25f9288e31
commit e6376b6a41
1 changed files with 8 additions and 0 deletions
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8
src/basic/errno-util.h
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@ -86,3 +86,11 @@ static inline bool ERRNO_IS_RESOURCE(int r) {
ENFILE, ENFILE,
ENOMEM); ENOMEM);
} }
/* Three different errors for "operation/system call/ioctl not supported" */
static inline bool ERRNO_IS_NOT_SUPPORTED(int r) {
return IN_SET(abs(r),
EOPNOTSUPP,
ENOTTY,
ENOSYS);
}