Commits on Sep 10, 2021

1. venv: do not prepend a truncated shebang interpreter …

   When a user invokes a `tox` call with `TOX_LIMITED_SHEBANG` set, any
   shebang-based scripts will have their interpreter's extracted and
   explicitly executed. An issue with the initial implementation is that if
   the configured interpreter is truncated to a path of another executable,
   the wrong executable can be invoked instead (see also [1][2]). To
   prevent this, an extra byte is read to ensure the length of the
   extracted interpreter is within the configured limit (MAXINTERP);
   otherwise the call will know the interpreter has been truncated and will
   fallback onto the original argument list.
   
   [1]: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/fs/binfmt_script.c?id=8099b047ecc431518b9bb6bdbba3549bbecdc343
   [2]: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/fs/binfmt_script.c?id=b5372fe5dc84235dbe04998efdede3c4daa866a9
   
   Signed-off-by: James Knight <james.d.knight@live.com>

   

   jdknight committed Sep 10, 2021
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2. cleanup shebang-related comments/documentation …

   Signed-off-by: James Knight <james.d.knight@live.com>

   

   jdknight committed Sep 10, 2021
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