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umask ugo=rwx does not work

From: Daniel Tuijnman
Subject: umask ugo=rwx does not work
Date: Fri, 11 Jun 2004 15:51:21 +0200

Configuration Information [Automatically generated, do not change]:
Machine: i686
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i686' 
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i686-pc-linux-gnu' 
-DCONF_VENDOR='pc' -DSHELL -DHAVE_CONFIG_H  -I.  -I. -I./include -I./lib 
-D_GNU_SOURCE  -O2 -g -march=i386 -mcpu=i686
uname output: Linux nijmegen4.zaal.ATComputing.nl 2.4.20-20.9.XFS1.3.1smp #1 
SMP Sat Oct 11 15:04:39 CDT 2003 i686 i686 i386 GNU/Linux
Machine Type: i686-pc-linux-gnu

Bash Version: 2.05b
Patch Level: 0
Release Status: release

        The command
        $ umask ugo=rwx
        gives an error code 1 and does not change the umask.
        Other ways to try to set the umask with all bits on, using symbolic
        notation, fail too.
        Octal notation does work, though.

        [Describe the sequence of events that causes the problem
        to occur.]
        See above.

        The function parse_symbolic_mode in file builtins/umask.def
        uses -1 as error value and a complement of all bits to work on.
        Masking out the high bits with each complement operator would
        solve the problem.

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