Fix the functions

[Rohanraj123]

Work in Progress!

1. Does this PR affect any open issues?(Y/N) and add issue references (e.g. "fix #123", "re #123".):

• N
• Y

#1857

2. What is the scope of this PR (e.g. component or file name):

3. Provide a description of the PR(e.g. more details, effects, motivations or doc link):

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Other

4. Are there any breaking changes?(Y/N) and describe the breaking changes(e.g. more details, motivations or doc link):

• N
• Y

5. Are there test cases for these changes?(Y/N) select and add more details, references or doc links:

• Unit test
• Integration test
• Benchmark (add benchmark stats below)
• Manual test (add detailed scripts or steps below)
• Other

[He1pa]

you can change it to draft before you finish it

[Rohanraj123]

Hey @He1pa , I tried to fix the function.
Func is expected to return list of hosts IPs. But it returns null because logic of network addres calculation and Ip iteration is problematic. I changed it and also tried to handle edge cases. Looking at some test cases failed I believe it returns list of IPs.
PTAL and confirm whether its a correct output then I will send the fix for other method as well.

[He1pa]

I am not very clear about this part. Can you provide me some reference information of your code implementation?