From c28ea1e0a30ad036a30288c8cda68c80c08ab0ec Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Sun, 30 Apr 2023 03:38:07 -0400
Subject: uname: Fix written linkname

---
(limited to 'src')

diff --git a/src/ustar.c b/src/ustar.c
index e1771c3..f14a3d4 100644
--- a/src/ustar.c
+++ b/src/ustar.c
@@ -308,9 +308,14 @@ opkg_opk_ustar_write_header(struct opkg_opk_ustar *ustar,
 		default:
 			return OPKG_OPK_ERROR;  /* Unsupported */
 	}
-	linkname_len = strlen(linkname);
-	memcpy(ustar->header.linkname, linkname, linkname_len);
-	ustar->header.linkname[linkname_len] = '\0';
+	if (*ustar->header.typeflag == '2') {
+		linkname_len = strlen(linkname);
+		memcpy(ustar->header.linkname, linkname, linkname_len);
+	} else {
+		linkname_len = 0;
+	}
+	memset(ustar->header.linkname, 0,
+			sizeof(ustar->header.linkname) - linkname_len);
 	if (opkg_opk_gzip_write(ustar->gzip, &ustar->header,
 				OPKG_OPK_USTAR_RECORD_SIZE, 0) != OPKG_OPK_OK) {
 		return OPKG_OPK_ERROR;
--
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