fix: comprehensive security and cross-platform improvements#2
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Security Fixes (C++): - Fix buffer overflow in Callback (64-byte → std::vector) - Fix race conditions in ThreadSafeCallback cleanup - Fix integer overflow in size conversions (uint32_t → size_t) - Fix memory leak in errcheck_callback_ - Add proper error handling for memory allocation failures JavaScript API Improvements: - Remove CTypeString type (no more string literals like "int32") - Remove types object export (only SimpleCData classes exported) - Add LRU cache for CDLL to prevent memory leaks - Update AnyType to: CType | SimpleCDataConstructor - Add input validation (empty field names, buffer bounds, etc.) Cross-Platform Fixes (libffi_cmake): - Add conditional HAVE_MKOSTEMP for FreeBSD/OpenBSD/Solaris - Add Windows ARM32 support (armasm preprocessing) - Add platform detection: Android, FreeBSD, NetBSD, OpenBSD - Add ARM32 variants: armv5l, armv6l, armv7l, armv7hf - Fix macOS x64 FFI_MMAP_EXEC_WRIT definition in template Documentation: - Update README with accurate API documentation - Clarify struct property access patterns - Document packed struct support - Add comprehensive limitations section Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Summary
This PR includes comprehensive security fixes, JavaScript API improvements, and cross-platform compatibility enhancements for node-ctypes.
Security Fixes (C++)
std::vectorin Callbackuint32_t→size_t)JavaScript API Improvements
CTypeStringtype (no more string literals like"int32")typesobject export (only SimpleCData classes exported)AnyTypetoCType | SimpleCDataConstructorCross-Platform Fixes (libffi_cmake)
HAVE_MKOSTEMPfor FreeBSD/OpenBSD/SolarisFFI_MMAP_EXEC_WRITdefinition in templateDocumentation
.get()/.set())packed: trueoption for packed structsTest Plan
Breaking Changes
None - the changes remove internal/undocumented features only.
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