Crate tempfile

Securely create and manage temporary files. Temporary files created by this create are automatically deleted.

This crate provides two temporary file variants: a tempfile() function that returns standard File objects and NamedTempFile. When choosing between the variants, prefer tempfile() unless you either need to know the file's path or to be able to persist it.

Example

use tempfile::tempfile;
use std::fs::File;

let mut file: File = tempfile().expect("failed to create temporary file");

Differences

Resource Leaking

tempfile() will (almost) never fail to cleanup temporary files but NamedTempFile will if its destructor doesn't run. This is because tempfile() relies on the OS to cleanup the underlying file so the file while NamedTempFile relies on its destructor to do so.

Security

In the presence of pathological temporary file cleaner, relying on file paths is unsafe because a temporary file cleaner could delete the temporary file which an attacker could then replace.

tempfile() doesn't rely on file paths so this isn't an issue. However, NamedTempFile does rely on file paths.

Structs

NamedTempFile	A named temporary file.
NamedTempFileOptions	Create a new temporary file with custom parameters.
PersistError	Error returned when persisting a temporary file fails

Functions

tempfile	Create an unnamed temporary file.
tempfile_in	Create an unnamed temporary file in the specified directory.