posish

Safe Rust bindings to POSIX-ish libc APIs and syscalls

A Bytecode Alliance project

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posish provides safe wrappers to POSIX-ish libc APIs and syscalls.

posish is focused on functionality that isn't already provided by [std] or other low-level crates such as [getrandom] and [errno]. It prioritizes memory safety and [I/O safety].

posish is relatively low-level and does not support Windows; for higher-level and portable APIs to this functionality, see the [system-interface], [cap-std], and [fs-set-times] crates.

Linux raw syscall support

On Linux, posish can optionally be configured to target the raw Linux syscall ABI directly instead of calling through libc. To enable this, add --cfg linux_raw to the RUSTFLAGS environment variable, or otherwise pass --cfg linux_raw to rustc.