minix man page for umask

Query: umask

OS: minix

Section: 2

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UMASK(2)							System Calls Manual							  UMASK(2)


NAME

       umask - set file creation mode mask


SYNOPSIS

       #include <sys/types.h>
       #include <sys/stat.h>

       mode_t umask(mode_t mask)


DESCRIPTION

       Umask sets the process's file mode creation mask to mask and returns the previous value of the mask.  The low-order 9 bits of mask are used
       whenever a file is created, clearing corresponding bits in the file mode (see chmod(2)).  This clearing allows each user  to  restrict  the
       default access to his files.

       The value is initially 022 (write access for owner only).  The mask is inherited by child processes.


RETURN VALUE

       The previous value of the file mode mask is returned by the call.


SEE ALSO

       chmod(2), mknod(2), open(2).

4th Berkeley Distribution					    May 9, 1985 							  UMASK(2)