From d8faf424ad64af0d42b44484c7baf57d2f1e3abd Mon Sep 17 00:00:00 2001
From: apio <blobs.trading@gmail.com>
Date: Thu, 19 Jan 2023 22:32:01 +0100
Subject: [PATCH] fix: Skip the padding field when calculating header checksums

---
 src/util.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/util.c b/src/util.c
index b771d08..e0e455a 100644
--- a/src/util.c
+++ b/src/util.c
@@ -203,7 +203,7 @@ uint32_t minitar_checksum_header(const struct tar_header* hdr)
     const uint8_t* ptr = (const uint8_t*)hdr;
 
     // Sum up all bytes in the header, as unsigned bytes...
-    while (ptr < (const uint8_t*)hdr + sizeof *hdr)
+    while (ptr < (const uint8_t*)hdr + (sizeof *hdr - sizeof hdr->padding))
     {
         sum += *ptr;
         ptr++;