From e38bbf8ec81c5b5960d7e299b7c15dcb96a23c63 Mon Sep 17 00:00:00 2001
From: Kevin McCarthy <kevin@8t8.us>
Date: Sun, 1 Jul 2018 20:13:11 -0700
Subject: [PATCH] Void passphrase on s/mime decryption error

Model this after pgp's pgp_decrypt_part(), which checks if fpout is
empty.
---
 ncrypt/smime.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/ncrypt/smime.c b/ncrypt/smime.c
index cb4b57126..815742cc7 100644
--- a/ncrypt/smime.c
+++ b/ncrypt/smime.c
@@ -2118,6 +2118,17 @@ static struct Body *smime_handle_entity(struct Body *m, struct State *s, FILE *o
     fflush(smimeout);
     rewind(smimeout);
 
+    if (type & ENCRYPT)
+    {
+      /* void the passphrase, even if that wasn't the problem */
+      if (fgetc(smimeout) == EOF)
+      {
+        mutt_error(_("Decryption failed"));
+        smime_class_void_passphrase();
+      }
+      rewind(smimeout);
+    }
+
     if (out_file)
       fpout = out_file;
     else
-- 
2.40.0