It's a library used by this implementation of coreutils in Rust programming language.
Think of it as a crate to create coreutils tools.
Here lies several abstraction for Unix/Unix-like structures in the OS supported by the project. * Backup module that handles creating backups * Input module to get user confirmation * mktemp: Wrappers for libc mkstemp(3) and mkdtemp(3) * mkfifo: Wrapper for libc mkfifo(3) and maybe expandable for other FIFO related functions * OS module with abstractions for more os specific stuff * Audit structs and syscall for FreeBSD and MacOS * group: Module with structures and methods to handle groups information * load: Safe abstraction to system function to get load of the system * loginname: Safe abstractions to system function to get caller login name * passwd: Module that holds structures and methods to handle system user information * process: Safe abstraction related to process handling * routingtable: Routing table abstractions for OpenBSD * time: OS functions to handle system time (set system time) * tty: Abstractions to check if a FileDescriptor is a TTY and ways to get the TTY name * utmp and utmpx: Types representing account database on unix and methods to use them * utsname: Types to aquire system information
It also re-export major needed things from bstr, a crate with a string type for Rust that is not required to be valid UTF-8, as well as time and libc
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