* Basic all-cap/all-lower case question on Environment variables
@ 2019-02-01 21:19 J Freyensee
2019-02-02 4:18 ` Tetsuo Handa
0 siblings, 1 reply; 2+ messages in thread
From: J Freyensee @ 2019-02-01 21:19 UTC (permalink / raw)
To: linux-security-module
I have a basic question on environment variables, that with some
documentation I have seen in the security modules like Tomoyo I'm hoping
this could be the right list to ask the following question.
System environment variables, like PATH, LD_LIBRARY_PATH, HOME, etc.
Can they ever default to all lower-case in a Linux Distro, i.e., path,
ld_library_path, home, etc? If so, is there a mode bit, kernel
configuration setting or sysfs file to check for this setting?
I swear I have worked on Linux systems years ago that had 'path' and
'ld_library_path' default to lower-case, but maybe I mis-recall.
Thanks for the info in advance, regards,
Jay
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Basic all-cap/all-lower case question on Environment variables
2019-02-01 21:19 Basic all-cap/all-lower case question on Environment variables J Freyensee
@ 2019-02-02 4:18 ` Tetsuo Handa
0 siblings, 0 replies; 2+ messages in thread
From: Tetsuo Handa @ 2019-02-02 4:18 UTC (permalink / raw)
To: J Freyensee, linux-security-module
On 2019/02/02 6:19, J Freyensee wrote:
> System environment variables, like PATH, LD_LIBRARY_PATH, HOME, etc. Can they ever
> default to all lower-case in a Linux Distro, i.e., path, ld_library_path, home, etc?
There is no rule for environment variables, except environment variable name can't
contain '=' because '=' is used as a separator for environment variable value.
> If so, is there a mode bit, kernel configuration setting or sysfs file to check for this setting?
No such settings. Just a convention. Even mixed name like OPENSSL_ia32cap is permitted.
^ permalink raw reply [flat|nested] 2+ messages in thread
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