fix: send domain name to custom detction rule manager for processing ntw rule

[Prateek-stepsecurity]

No description provided.

[step-security-bot-int]

Please find StepSecurity AI-CodeWise code comments below.

Code Comments

dnsproxy.go

• [High]Ensure correct and consistent function arguments based on function expectations
  Changing the argument passed to proxy.submitDNSEvent from answer.Data (presumably an IP address) to domain might break the expected behavior if submitDNSEvent expects an IP address. This can cause unexpected bugs or compromised data handling. According to the principle of least astonishment (source: "Clean Code" by Robert C. Martin), functions should be used as intended to maintain clarity and reliability. Verify the expected argument type for submitDNSEvent. If it expects an IP address, revert the change back to answer.Data. Otherwise, update the function signature and documentation of submitDNSEvent to accept and handle a domain string appropriately.
• [Medium]Add error handling or context for asynchronous calls launched via goroutines
  The code fires off goroutines for sendDNSRecord and submitDNSEvent without any error capture or propagation. This can lead to silent failures which are difficult to debug or may cause inconsistent system state. According to Google's Go best practices (https://github.com/golang/go/wiki/CodeReviewComments#goroutines), goroutines should ideally signal errors via channels or sync mechanisms. Implement error channels or context cancellation to catch errors from sendDNSRecord and submitDNSEvent. For example, have these functions return errors on a channel that the caller can listen to and handle appropriately.
• [Medium]Use explicit variable naming and data passing clarity
  The variable answer.Data is passed in one instance but replaced with domain in another call to submitDNSEvent. This inconsistency may cause confusion for maintainers. According to naming conventions recommended by Effective Go (https://golang.org/doc/effective_go#names), variables and parameters should be named clearly to reflect their actual data. Confirm and consistently use proper variable names and values. If submitDNSEvent expects domain name, pass domain in both places or rename the function to reflect the expected input.
• [Low]Document the assumptions and expectations about the data passed to goroutines
  Documentation helps in maintaining and auditing code later. Per the Go documentation standards (https://blog.golang.org/godoc-documenting-go-code), functions especially those executed concurrently should have comments that state what data is passed and any thread-safety constraints. Add comments above the goroutine launches describing what data is being passed and any side effects or dependencies.

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