Module magic 

File magic byte detection utilities.

Provides low-level file format detection by reading and checking magic bytes at the beginning of files. Used by parsers to disambiguate file types that share the same extension (e.g., Alpine .apk vs Android .apk).

Functions

is_nsis_installer

Check if file contains NSIS installer signature.

is_squashfs

Check if file starts with Squashfs magic bytes.

is_zip

Check if file starts with ZIP magic bytes (PK\x03\x04).