getumask (3) - Linux Man Pages
getumask: get file creation mask
getumask - get file creation mask
SYNOPSIS#define _GNU_SOURCE /* See feature_test_macros(7) */
DESCRIPTIONThis function returns the current file creation mask. It is equivalent to
except that it is documented to be thread-safe (that is, shares a lock with the umask(2) library call).
CONFORMING TOThis is a vaporware GNU extension.
NOTESThis function is documented in the glibc manual, but, as at glibc version 2.24, it is not implemented on Linux. (See umask(2) for a thread-safe method of discovering a process's umask.)
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