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argp: pass NULL as msgid to dgettext without checks
From
:
He X
Subject
:
argp: pass NULL as msgid to dgettext without checks
Date
:
Sat, 22 Dec 2018 16:06:51 +0800
since my libc is musl, tar is using builtin argp implementation, which will pass NULL as msgid to dgettext without additional checks.
but according to
https://www.gnu.org/software/gettext/manual/html_node/Interface-to-gettext.html
, passing NULL to gettext is undefined. and, musl chose to crash..
could you please check if msgid is NULL before passing it to dgettext? the problem code is located at argp-help.c.
related links:
https://www.openwall.com/lists/musl/2017/03/24/10
.
--
Best regards,
xhe
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