chore: upgrade pcapplusplus from 23.09 to 24.09

[leoparente]

This pull request makes several important improvements and fixes to the DNS layer implementation, build system, and Conan integration. The main themes are: fixing a critical bug in DNS resource handling, improving Conan/CMake integration, updating dependencies, and modernizing header usage.

Summary of most important changes:

DNS Layer Bug Fixes and Modernization

• Fixed a critical bug in the DNS resource linked list management by correcting all instances of the method name from setNexResource to the correct setNextResource in both header and implementation files, ensuring proper resource chaining and preventing potential runtime errors. [1] [2] [3] [4] [5] [6] [7]
• Added a boundary check in DnsResource::getDataLength() to prevent heap buffer overflows when parsing DNS resource data, improving robustness against malformed packets.
• Replaced traditional include guards with #pragma once in DNS-related headers for improved clarity and to prevent multiple inclusion issues. [1] [2] [3]
• Modernized the DNS enums header (DnsLayerEnums.h) to re-export types from PcapPlusPlus, reducing code duplication and ensuring consistency with upstream definitions.

Conan and CMake Integration Improvements

• Enhanced Conan integration in CMakeLists.txt and related CMake scripts to ensure Conan's toolchain file is loaded after the first find_package(), and improved logic for handling compiler executables, C++ standard detection, and multi-configuration builds. [1] [2] [3] [4] [5] [6] [7]
• Updated Conan dependency for pcapplusplus from version 23.09 to 24.09 in conanfile.py, ensuring the project uses the latest features and fixes.

Minor Improvements

• Made the constructor for DnsQuery that accepts raw data explicit to prevent unintended implicit conversions.
• Removed obsolete or redundant include guards at the end of several headers, relying on #pragma once for header protection. [1] [2]

These changes collectively improve the reliability, maintainability, and modernity of the DNS layer code and its build system integration.

[chatgpt-codex-connector]

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[leoparente]

windows and MacOS builds are still broken. The plan is to fix them after every lib is properly upgraded.