From 0108b4724eae27c18ae550fa3dd5bbbbe641d09e Mon Sep 17 00:00:00 2001
From: "B. Petersen" <r10s@b44t.com>
Date: Sat, 19 Oct 2019 11:30:32 +0200
Subject: [PATCH] add function to convert NULL-able c-string to Option<String>

---
 src/dc_tools.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/dc_tools.rs b/src/dc_tools.rs
index 061cf3dc7..6cf4c11de 100644
--- a/src/dc_tools.rs
+++ b/src/dc_tools.rs
@@ -735,6 +735,14 @@ pub fn to_string_lossy(s: *const libc::c_char) -> String {
     cstr.to_string_lossy().to_string()
 }
 
+pub fn to_opt_string_lossy(s: *const libc::c_char) -> Option<String> {
+    if s.is_null() {
+        return None;
+    }
+
+    Some(to_string_lossy(s))
+}
+
 pub fn as_str<'a>(s: *const libc::c_char) -> &'a str {
     as_str_safe(s).unwrap_or_else(|err| panic!("{}", err))
 }