Refactor to reuse dig command and improve maintainability

[PeterDaveHello]

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:muscle:

Summary by CodeRabbit

• Refactor
  • Standardized DNS query command execution across the script by introducing a consistent dig command variable.

[coderabbitai[bot]]

📝 Walkthrough

Walkthrough

The pull request introduces a new array variable dig_command in the script, which is set to dig +short. This change aims to standardize and centralize the DNS query command execution across various functions. The modifications replace direct dig command calls with the new dig_command array in multiple parts of the script, including the IP address retrieval for NextDNSBlockPageCname, the query function, and the warnUpDNS function.

Changes

File	Change Summary
chkdm	- Added dig_command array variable set to dig +short - Updated IP address retrieval to use dig_command - Modified query function to use dig_command - Updated warnUpDNS function to use dig_command

Possibly related PRs

• #25: Potential interaction with warnUpDNS function and dig_command variable in DNS command execution
• #29: Direct relationship through modifications to the query function using dig_command
• #35: Related to DNS entries management and handling improvements

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[PeterDaveHello]

/review

[qodo-merge-pro[bot]]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 Security concerns Command Injection: The PR introduces a new dig_command array variable that is used with user-provided domain names. While there is some domain validation happening earlier in the code, the validation may not catch all edge cases that could lead to command injection. The domain variable should be properly escaped or validated before being used with the dig command to prevent potential command injection attacks.

⚡ Recommended focus areas for review Command Injection The dig_command array is used with user input ($domain) without proper input validation or escaping, which could potentially allow command injection if malicious domain names are provided. result="$("${dig_command[@]}" "$domain" @"$dns" | xargs)"

[PeterDaveHello]

@CodiumAI-Agent /review

[CodiumAI-Agent]

Persistent review updated to latest commit https://github.com/PeterDaveHello/chkdomain/commit/6892bdc25189fd6b383d430d8bb6b46cbadfa0bd