ioctl_syscall updates

[ve1nard]

Description

Fixes # (issue)

The following changes include more elaborate comments and new unit tests for ioctl_syscall.

Type of change

• More detailed comments for ioctl_syscall
• New unit tests for ioctl_syscall

How Has This Been Tested?

To run the tests, we need to run cargo test --lib command inside the safeposix-rust directory.

All the tests are present under this directory: lind_project/src/safeposix-rust/src/tests/fs_tests.rs

• Test A - lut_lind_fs_ioctl_valid_args()
• Test B - ut_lind_fs_ioctl_invalid_args()

Checklist:

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• Any dependent changes have been added to a pull request and/or merged in other modules (native-client, lind-glibc, lind-project)

[JustinCappos]

Okay, let's try to trade reviews with our peers too so you can all learn from each other. Maybe have @namanlalitnyu take a look first? I can do a review after.

(Feel free to start on other calls / review other students' PRs in the meantime.)

[rennergade]

i think once you get the style updated this is ready to go!

[rennergade]

I think this is ready. Approved and great job.

[JustinCappos]

LGTM!