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Smarter default umask, use 002 on systems that support UPG

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Danielle McLean 2016-10-17 19:50:29 +11:00
parent 8380453058
commit 38eb2c7b6f
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GPG key ID: CC91589719027E94
1 changed files with 13 additions and 1 deletions
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14
config/zsh/login/umask
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@ -1,2 +1,14 @@
#! zsh
(( $(umask) == 0 )) && umask 022
# umask should *never* be zero. If it is, set it to something safer.
if (( $(umask) == 0 )); then
# Test whether the system uses User Private Groups - if it does, my primary
# group will have the same name as my user. Basic info on UPG can be found
# here: https://security.ias.edu/how-and-why-user-private-groups-unix
if [[ $(id -un) = $(id -gn) ]]; then
# 002 is a safe umask if the system has UPG.
umask 002
else
# 022 is a safe umask if the system does not have UPG.
umask 022
fi
fi