From 0132106c7eb7aea4eca71a6dfce41d1e8ec38113 Mon Sep 17 00:00:00 2001
From: Alexander <ilabdsf@gmail.com>
Date: Sun, 28 Jul 2019 17:47:52 +0000
Subject: [PATCH] fix(imex): dc_decrypt_setup_file: extend lifetime of CString

payload_c binding makes sure the memory is not freed until strdup exits.

See as_ptr documentation:
https://doc.rust-lang.org/std/ffi/struct.CString.html#method.as_ptr
---
 src/dc_imex.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/dc_imex.rs b/src/dc_imex.rs
index 0a0ff19a8..be13b7aa8 100644
--- a/src/dc_imex.rs
+++ b/src/dc_imex.rs
@@ -490,7 +490,8 @@ pub unsafe fn dc_decrypt_setup_file(
             if let Some(plain) =
                 dc_pgp_symm_decrypt(passphrase, binary as *const libc::c_void, binary_bytes)
             {
-                payload = strdup(CString::new(plain).unwrap().as_ptr());
+                let payload_c = CString::new(plain).unwrap();
+                payload = strdup(payload_c.as_ptr());
             }
         }
     }