Add function safe wrappers and test file

Makefile

@@ -1,5 +1,7 @@
 clean:
 	rm -rf libinjection
+	rm -f src/bindings.rs
+	cargo clean
 
 fix-python:
 	sed -i 's/python$$/python2/g' libinjection/src/*.py

src/lib.rs

@@ -0,0 +1,4 @@
+mod bindings;
+mod wrapper;
+
+pub use wrapper::{sqli, xss};

src/wrapper.rs

@@ -0,0 +1,26 @@
+use bindings;
+use std::ffi::CString;
+
+/// Checks `input` for SQL injection detection, and returns an option of (is_sqli, fingerprint)
+pub fn sqli(input: &str) -> Option<(bool, String)> {
+    let fingerprint_cstring = CString::new("").ok()?;
+    let fingerprint_raw_ptr = fingerprint_cstring.into_raw();
+    let input_cstring = CString::new(input).ok()?;
+    let input_ptr = input_cstring.as_ptr();
+    let is_sqli =
+        unsafe { bindings::libinjection_sqli(input_ptr, input.len(), fingerprint_raw_ptr) };
+    Some((
+        is_sqli == 1,
+        unsafe { CString::from_raw(fingerprint_raw_ptr) }
+            .into_string()
+            .ok()?,
+    ))
+}
+
+/// Checks `input` for XSS detection, and returns an option of is_xss
+pub fn xss(input: &str) -> Option<bool> {
+    let input_cstring = CString::new(input).ok()?;
+    let input_ptr = input_cstring.as_ptr();
+    let is_xss = unsafe { bindings::libinjection_xss(input_ptr, input.len()) };
+    Some(is_xss == 1)
+}

tests/lib_test.rs

@@ -0,0 +1,22 @@
+extern crate libinjection;
+
+use libinjection::{sqli, xss};
+
+#[test]
+fn test_sqli() {
+    let (is_sqli, fingerprint) = sqli("' OR '2'='2' --").unwrap();
+    assert!(is_sqli);
+    assert_eq!("s&sos", fingerprint);
+
+    let (is_sqli, fingerprint) = sqli("SELECT * FROM users").unwrap();
+    assert!(!is_sqli);
+    assert!(fingerprint.is_empty());
+}
+
+fn test_xss() {
+    let is_xss = xss("<script type='text/javascript'>alert('xss');</script>").unwrap();
+    assert!(is_xss);
+
+    let is_xss = xss("is not XSS").unwrap();
+    assert!(!is_xss);
+}