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bpo-33706: Fix pymain_parse_cmdline_impl() (GH-7283)
authorMiss Islington (bot) <31488909+miss-islington@users.noreply.github.com>
Thu, 31 May 2018 13:43:21 +0000 (06:43 -0700)
committerGitHub <noreply@github.com>
Thu, 31 May 2018 13:43:21 +0000 (06:43 -0700)
commitc6de46e180e81508a3b43341791b56418bd811f9
treea2675aec145df1950db4d9418005c0486bea969dtree | snapshot
parentd6bbb57855da3f92521edd901f49705be46fb203commit | diff
bpo-33706: Fix pymain_parse_cmdline_impl() (GH-7283)

Fix a crash in Python initialization when parsing the command line
options.

Fix memcpy() size parameter: previously, we read one wchar_t after
the end of _PyOS_optarg. Moreover, don't copy the trailingg NUL
character: we write it manually anyway.

Thanks Christoph Gohlke for the bug report and the fix!
(cherry picked from commit 58d1683255abb0df4fc70960da6121aeaa41e1d1)

Co-authored-by: Victor Stinner <vstinner@redhat.com>
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