fsconstantsWOK

fsconstantsWOK is a cross-platform library that provides a portable set of filesystem-related constants and flags used in file I/O operations. It aggregates values from POSIX and Windows interfaces into a single API, allowing developers to write platform-agnostic code that interacts with the underlying filesystem.

Its primary purpose is to standardize constants such as open modes (for example O_RDONLY, O_WRONLY, O_RDWR, O_CREAT, O_EXCL, O_TRUNC, O_APPEND) and basic permission bits (for example S_IRUSR, S_IWUSR, S_IXUSR and their group/other counterparts). By mapping platform-specific definitions to a common surface, fsconstantsWOK reduces the need for conditional code in cross-platform libraries.

Platform support for fsconstantsWOK covers major operating systems typically targeted by Node.js-style environments, including Linux, macOS, Windows, and their common compatibility layers. The library performs value mapping at runtime or build time, depending on the host, to ensure consistent behavior for file opening, creation, and permission checks.

Example usage (in a Node.js-like context): const fsconstantsWOK = require('fsconstantsWOK'); const fs = require('fs'); const fd = fs.openSync('example.txt', fsconstantsWOK.O_RDONLY | fsconstantsWOK.O_CREAT);

See also: Node.js fs.constants, POSIX file mode bits, Win32 file attributes.