SYNOPSIS
#define _GNU_SOURCE /* See feature_test_macros(7) */#include <sys/types.h>
#include <sys/stat.h>
mode_t getumask(void);
DESCRIPTION
This function returns the current file creation mask. It is equivalent tomode_t getumask(void) { mode_t mask = umask( 0 ); umask(mask); return mask; }except that it is documented to be thread-safe (that is, shares a lock with the umask(2) library call).
CONFORMING TO
This is a vaporware GNU extension.NOTES
This function is documented but not implemented yet in glibc, as at version 2.9.COLOPHON
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