signature_scanner.hpp

1. Overview

The signature_scanner.hpp file searches media for filesystem or file signatures independently of partition metadata.

This is an interface and data-contract file. It declares the public and internal types used by this subsystem, allowing implementation files and callers to share a stable compile-time contract.

Its paired source or interface file is signature_scanner.cpp.

Primary responsibilities:

  • Scan byte ranges in chunks
  • Match configured signatures
  • Generate candidate offsets
  • Avoid duplicate or implausible results

2. File Identity and Scope

  • Source path: src/signature_scanner.hpp
  • Language: C++
  • File role: interface and data-contract file
  • Physical lines: 10
  • Non-empty lines: 8
  • SHA-256: e18441e92e7c41be68be6cbbc761b9f1428079f9f1cd753cfeccf68c14514b98

The declarations in this file use the global namespace.

3. Dependencies

3.1 Project Headers

  • disk_reader.hpp
  • models.hpp

3.2 Standard and External Headers

  • vector

These dependencies define the file’s compile-time integration with the recovery engine, GTK interface, on-disk format decoders, operating-system services, or C++ standard library.

4. Declared Types

  • class SignatureScanner.

5. Constants and Configuration Values

No preprocessor or compile-time constants were detected as top-level declarations in this file.

6. Data Members and Persistent State

No class data members are declared directly in this file, or the file primarily implements methods declared elsewhere.

7. API and Function Inventory

The following callable interfaces or definitions were detected:

  • static std::vector<ScanResult> scan(DiskReader&reader,std::vector<std::string>&logs) – Inspects the source and reports matching candidates or detected metadata.

8. Operational Flow

The subsystem represented by this file normally participates in the following flow:

  1. Scan byte ranges in chunks.
  2. Match configured signatures.
  3. Generate candidate offsets.
  4. Avoid duplicate or implausible results.
  5. Expose or execute the detected APIs: scan.
  6. Return explicit results, progress data, recovered records, or diagnostics to the calling layer.

9. Validation and Error Handling

  • On-disk structures are accepted only after validating signatures, magic values and structural constraints.

10. Runtime, Concurrency, and Resource Management

  • Deterministic behavior: callers depend on explicit return values and stable data structures to distinguish successful recovery from partial or invalid results.

11. Security and Data-Recovery Considerations

  • Recovery code should prefer read-only source access and avoid writing to the original damaged medium.
  • Raw devices and image files are treated as untrusted binary input; every offset and length must remain bounded by the source size.

12. Implementation Considerations

  • Changes to public declarations can affect every translation unit that includes this header and should preserve binary and source compatibility where required.

13. Integration with the Recovery Pipeline

  • The file belongs to the source-discovery, parsing or support layer.
  • Its results feed scanner, recovery or reporting modules through shared models.
  • The API should remain deterministic so higher layers can combine results safely.

14. Licensing and Provenance

No explicit copyright or software-license statement was detected in the opening section of this individual file. Distribution terms should therefore be verified against the project-level license and repository metadata.

The SHA-256 value in this document can be used to associate the generated documentation with the exact source version analyzed.

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