From 520b062dbb3ffe405bb65ca9ad88327756505d7f Mon Sep 17 00:00:00 2001
From: Jordan Bancino <jordan@bancino.net>
Date: Wed, 23 Nov 2022 00:44:29 +0000
Subject: [PATCH] Should probably make sure this succeeds.

---
 src/Db.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Db.c b/src/Db.c
index 22c57c1..cbbee49 100644
--- a/src/Db.c
+++ b/src/Db.c
@@ -563,7 +563,11 @@ DbUnlock(Db * db, DbRef * ref)
     pthread_mutex_lock(&db->lock);
 
     rewind(ref->fp);
-    ftruncate(fileno(ref->fp), 0);
+    if (ftruncate(fileno(ref->fp), 0) < 0)
+	{
+		pthread_mutex_unlock(&db->lock);
+		return 0;
+	}
 
     JsonEncode(ref->json, ref->fp);