From: frank honza <frank.honza@dcso.de>
Date: Sun, 18 Oct 2020 19:50:29 +0000 (+0200)
Subject: util: add function converting u8-array into a hex-String
X-Git-Tag: suricata-7.0.0-beta1~1734
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e9494ddd8ffa8c14e82fdaed673b49ddbf82368c;p=thirdparty%2Fsuricata.git

util: add function converting u8-array into a hex-String
---

diff --git a/rust/src/common.rs b/rust/src/common.rs
index d9341881f7..1d28ba5f0a 100644
--- a/rust/src/common.rs
+++ b/rust/src/common.rs
@@ -72,3 +72,12 @@ pub unsafe extern "C" fn rs_cstring_free(s: *mut c_char) {
     }
     drop(CString::from_raw(s));
 }
+
+/// Convert an u8-array of data into a hexadecimal representation
+pub fn to_hex(input: &[u8]) -> String {
+    static CHARS: &'static [u8] = b"0123456789abcdef";
+
+    return input.iter().map(
+        |b| vec![char::from(CHARS[(b >>  4) as usize]), char::from(CHARS[(b & 0xf) as usize])]
+    ).flatten().collect();
+}