From a5022ac6cb64ef68210b8204591b1deb84ea70d8 Mon Sep 17 00:00:00 2001
From: jacqueline <me@jacqueline.id.au>
Date: Mon, 31 Jul 2023 09:52:00 +1000
Subject: [PATCH] fix bsd-ish callback behaviour

---
 src/database/tag_parser.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/database/tag_parser.cpp b/src/database/tag_parser.cpp
index f7e1ceec..3d3df7e8 100644
--- a/src/database/tag_parser.cpp
+++ b/src/database/tag_parser.cpp
@@ -43,6 +43,9 @@ struct Aux {
 
 static int read(Tagctx* ctx, void* buf, int cnt) {
   Aux* aux = reinterpret_cast<Aux*>(ctx->aux);
+  if (f_eof(&aux->file)) {
+    return 0;
+  }
   UINT bytes_read;
   if (f_read(&aux->file, buf, cnt, &bytes_read) != FR_OK) {
     return -1;
@@ -65,7 +68,10 @@ static int seek(Tagctx* ctx, int offset, int whence) {
   } else {
     return -1;
   }
-  return res;
+  if (res != FR_OK) {
+    return -1;
+  }
+  return aux->file.fptr;
 }
 
 static void tag(Tagctx* ctx,