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-rw-r--r--tests/Makemodule.am5
-rw-r--r--tests/tar_fuzz.c52
2 files changed, 56 insertions, 1 deletions
diff --git a/tests/Makemodule.am b/tests/Makemodule.am
index f84852a..c6ba1d9 100644
--- a/tests/Makemodule.am
+++ b/tests/Makemodule.am
@@ -85,6 +85,9 @@ endif
fstree_fuzz_SOURCES = tests/fstree_fuzz.c
fstree_fuzz_LDADD = libfstree.a libutil.a
+tar_fuzz_SOURCES = tests/tar_fuzz.c
+tar_fuzz_LDADD = libtar.a libutil.a
+
check_PROGRAMS += test_canonicalize_name test_mknode_simple test_mknode_slink
check_PROGRAMS += test_mknode_reg test_mknode_dir test_gen_inode_table
check_PROGRAMS += test_add_by_path test_get_path test_fstree_sort
@@ -94,7 +97,7 @@ check_PROGRAMS += test_tar_sparse_gnu1 test_tar_sparse_gnu2
check_PROGRAMS += test_tar_xattr_bsd test_tar_xattr_schily test_str_table
check_PROGRAMS += test_blk_proc_order
-noinst_PROGRAMS += fstree_fuzz
+noinst_PROGRAMS += fstree_fuzz tar_fuzz
TESTS += test_canonicalize_name test_mknode_simple test_mknode_slink
TESTS += test_mknode_reg test_mknode_dir test_gen_inode_table
diff --git a/tests/tar_fuzz.c b/tests/tar_fuzz.c
new file mode 100644
index 0000000..4dc20f5
--- /dev/null
+++ b/tests/tar_fuzz.c
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * tar_fuzz.c
+ *
+ * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
+ */
+#include "config.h"
+
+#include "util.h"
+#include "tar.h"
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <fcntl.h>
+
+int main(int argc, char **argv)
+{
+ tar_header_decoded_t hdr;
+ int fd, ret;
+
+ if (argc != 2) {
+ fputs("usage: tar_fuzz <tarball>\n", stderr);
+ return EXIT_FAILURE;
+ }
+
+ fd = open(argv[1], O_RDONLY);
+ if (fd < 0) {
+ perror(argv[1]);
+ return EXIT_FAILURE;
+ }
+
+ for (;;) {
+ ret = read_header(fd, &hdr);
+ if (ret > 0)
+ break;
+ if (ret < 0)
+ goto fail;
+
+ ret = lseek(fd, hdr.sb.st_size, SEEK_CUR);
+
+ clear_header(&hdr);
+ if (ret)
+ goto fail;
+ }
+
+ close(fd);
+ return EXIT_SUCCESS;
+fail:
+ close(fd);
+ return EXIT_FAILURE;
+}