getumask – get file creation mask
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 to
mode_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 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.)
See Also
umask(2)
Colophon
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https://www.kernel.org/doc/man-pages/.
