diff -urN busybox-1.8.1/archival/libunarchive/decompress_unzip.c busybox-1.8.1-tar_z/archival/libunarchive/decompress_unzip.c
--- busybox-1.8.1/archival/libunarchive/decompress_unzip.c	2007-11-09 17:40:48.000000000 -0800
+++ busybox-1.8.1-tar_z/archival/libunarchive/decompress_unzip.c	2007-11-11 17:35:13.000000000 -0800
@@ -1178,6 +1178,7 @@
 	ALLOC_STATE;
 	bytebuffer_max = 0x8000;
 	bytebuffer = xmalloc(bytebuffer_max);
+	gunzip_src_fd = in;
 
  again:
 	if (!check_header_gzip(PASS_STATE_ONLY)) {
diff -urN busybox-1.8.1/archival/libunarchive/get_header_tar.c busybox-1.8.1-tar_z/archival/libunarchive/get_header_tar.c
--- busybox-1.8.1/archival/libunarchive/get_header_tar.c	2007-11-09 17:40:48.000000000 -0800
+++ busybox-1.8.1-tar_z/archival/libunarchive/get_header_tar.c	2007-11-16 12:28:08.000000000 -0800
@@ -59,8 +59,9 @@
 		char chksum[8];     /* 148-155 */
 		char typeflag;      /* 156-156 */
 		char linkname[100]; /* 157-256 */
-		char magic[6];      /* 257-262 */
-		char version[2];    /* 263-264 */
+		/* POSIX:   "ustar" NUL "00" */
+		/* GNU tar: "ustar  " NUL */
+		char magic[8];      /* 257-264 */
 		char uname[32];     /* 265-296 */
 		char gname[32];     /* 297-328 */
 		char devmajor[8];   /* 329-336 */
diff -urN busybox-1.8.1/archival/tar.c busybox-1.8.1-tar_z/archival/tar.c
--- busybox-1.8.1/archival/tar.c	2007-11-09 17:40:49.000000000 -0800
+++ busybox-1.8.1-tar_z/archival/tar.c	2007-11-16 12:28:08.000000000 -0800
@@ -50,8 +50,9 @@
 	char chksum[8];           /* 148-155 */
 	char typeflag;            /* 156-156 */
 	char linkname[NAME_SIZE]; /* 157-256 */
-	char magic[6];            /* 257-262 */
-	char version[2];          /* 263-264 */
+	/* POSIX:   "ustar" NUL "00" */
+	/* GNU tar: "ustar  " NUL */
+	char magic[8];            /* 257-264 */
 	char uname[32];           /* 265-296 */
 	char gname[32];           /* 297-328 */
 	char devmajor[8];         /* 329-336 */