review and refactor c code for simplicity and security #2298

Job	Run time
🚨 C lint	24s
🚨 Lua lint	20s
🚨 REUSE Compliance	17s
🤖 Semantic release	0s
🐯 js build release	0s
🗃️ Check file changes	0s
🍎 apple osx and ios release build	0s
🪟 Windows and 🤖 Android binary builds on Ubuntu	0s
🐧 Binary builds on Ubuntu (x86_64, arm_64, arm_hf)	0s
🧻 Remove tag on fail	-1s
📦 Pack release	-1s
📦 npm release	-1s
🐳 Publish Docker image	-1s
🐍 Python create source distribution	-1s
📦 PyPI release	0s
🪟 Windows build test	3m 41s
🐧 Linux check tests (gcc and clang) (COMPILER=clang COMPILER_CXX=clang++)	11m 7s
💪 Musl test (arm_64)	10m 23s
🐧 Linux ARM64 check tests (gcc and clang) (COMPILER=gcc COMPILER_CXX=g++)	3m 45s
💪 Musl test (arm_hf)	8m 54s
🐧 Linux ARM64 check tests (gcc and clang) (COMPILER=clang COMPILER_CXX=clang++)	5m 18s
🍎 Apple OSX check tests	5m 18s
🐧 Linux check tests (gcc and clang) (COMPILER=gcc COMPILER_CXX=g++)	8m 5s
🐯 NodeJS WASM check tests (22.16.0)	7m 55s
💪 Musl test (x86_64)	9m 15s
🦀 rust build & checks (stable)	2m 59s
🐍 Python checks (macos-latest, 3.12)	2m 26s
🦀 rust build & checks (nightly)	2m 55s
🐹 go build & checks (oldstable)	2m 35s
🐹 go build & checks (stable)	2m 36s
🐍 Python checks (ubuntu-latest, 3.12)	3m 6s
🦾 ARM32 build test	0s
💪 Test musl-arm_64 build	1m 18s
	1h 32m 32s

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