Add test case for tar large file size support

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

10 files changed, 88 insertions, 7 deletions

diff --git a/tests/Makemodule.am b/tests/Makemodule.am
index 8bf818e..44c6eda 100644
--- a/tests/Makemodule.am
+++ b/tests/Makemodule.am
@@ -38,6 +38,10 @@ test_tar_formats_SOURCES = tests/tar_formats.c
 test_tar_formats_LDADD = libtar.a libutil.a
 test_tar_formats_CPPFLAGS = $(AM_CPPFLAGS) -DTESTPATH=$(top_srcdir)/tests/tar
 
+test_tar_big_size_SOURCES = tests/tar_big_size.c
+test_tar_big_size_LDADD = libtar.a libutil.a
+test_tar_big_size_CPPFLAGS = $(AM_CPPFLAGS) -DTESTPATH=$(top_srcdir)/tests/tar
+
 test_tar_long_paths_SOURCES = tests/tar_long_paths.c
 test_tar_long_paths_LDADD = libtar.a libutil.a
 test_tar_long_paths_CPPFLAGS = $(AM_CPPFLAGS) -DTESTPATH=$(top_srcdir)/tests/tar
@@ -55,10 +59,11 @@ check_PROGRAMS += test_mknode_reg test_mknode_dir test_gen_inode_table
 check_PROGRAMS += test_add_by_path test_get_path test_fstree_sort
 check_PROGRAMS += test_fstree_from_file test_fstree_init test_fstree_xattr
 check_PROGRAMS += test_tar_formats test_tar_long_paths test_tar_mtime
-check_PROGRAMS += test_tar_large_uid
+check_PROGRAMS += test_tar_large_uid test_tar_big_size
 
 TESTS += test_canonicalize_name test_mknode_simple test_mknode_slink
 TESTS += test_mknode_reg test_mknode_dir test_gen_inode_table
 TESTS += test_add_by_path test_get_path test_fstree_sort test_fstree_from_file
 TESTS += test_fstree_init test_fstree_xattr test_tar_formats
 TESTS += test_tar_long_paths test_tar_mtime test_tar_large_uid
+TESTS += test_tar_big_size
diff --git a/tests/tar/CREDITS b/tests/tar/CREDITS
index 32014fc..e4b19b4 100644
--- a/tests/tar/CREDITS
+++ b/tests/tar/CREDITS
@@ -20,3 +20,6 @@ for those features:
  - longe user + group names
  - sun tar samples
  - star samples
+
+In addition to that, the files in "file-size" are truncated, since we are only
+interested in parsing the header.
diff --git a/tests/tar/file-size/12-digit.tar b/tests/tar/file-size/12-digit.tar
new file mode 100644
index 0000000..a6b3553
--- /dev/null
+++ b/tests/tar/file-size/12-digit.tar
diff --git a/tests/tar/file-size/12-digit.tar.gz.gz b/tests/tar/file-size/12-digit.tar.gz.gz
deleted file mode 100644
index aaa69e3..0000000
--- a/tests/tar/file-size/12-digit.tar.gz.gz
+++ /dev/null
diff --git a/tests/tar/file-size/ZIPBOMB-WARNING b/tests/tar/file-size/ZIPBOMB-WARNING
deleted file mode 100644
index e530637..0000000
--- a/tests/tar/file-size/ZIPBOMB-WARNING
+++ /dev/null
@@ -1,6 +0,0 @@
-WARNING!
-
-The inner compressed tarballs in this directory are 8 GiB of size each.
-Be careful not to decompress them accidentally without preparing
-appropriate backing store (or having the decompressor smart about sparse
-files).
diff --git a/tests/tar/file-size/gnu.tar b/tests/tar/file-size/gnu.tar
new file mode 100644
index 0000000..aad726f
--- /dev/null
+++ b/tests/tar/file-size/gnu.tar
diff --git a/tests/tar/file-size/gnu.tar.gz.gz b/tests/tar/file-size/gnu.tar.gz.gz
deleted file mode 100644
index 6ae4342..0000000
--- a/tests/tar/file-size/gnu.tar.gz.gz
+++ /dev/null
diff --git a/tests/tar/file-size/pax.tar b/tests/tar/file-size/pax.tar
new file mode 100644
index 0000000..e391fee
--- /dev/null
+++ b/tests/tar/file-size/pax.tar
diff --git a/tests/tar/file-size/pax.tar.gz.gz b/tests/tar/file-size/pax.tar.gz.gz
deleted file mode 100644
index 7c887d6..0000000
--- a/tests/tar/file-size/pax.tar.gz.gz
+++ /dev/null
diff --git a/tests/tar_big_size.c b/tests/tar_big_size.c
new file mode 100644
index 0000000..3b5b557
--- /dev/null
+++ b/tests/tar_big_size.c
@@ -0,0 +1,79 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+#include "util.h"
+#include "tar.h"
+
+#include <unistd.h>
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <stdio.h>
+
+#define STR(x) #x
+#define STRVALUE(x) STR(x)
+
+#define TEST_PATH STRVALUE(TESTPATH)
+
+static int open_read(const char *path)
+{
+	int fd = open(path, O_RDONLY);
+
+	if (fd < 0) {
+		perror(path);
+		exit(EXIT_FAILURE);
+	}
+
+	return fd;
+}
+
+int main(void)
+{
+	tar_header_decoded_t hdr;
+	int fd;
+
+	assert(chdir(TEST_PATH) == 0);
+
+	fd = open_read("file-size/pax.tar");
+	assert(read_header(fd, &hdr) == 0);
+	assert(hdr.sb.st_mode == (S_IFREG | 0644));
+	assert(hdr.sb.st_uid == 01750);
+	assert(hdr.sb.st_gid == 01750);
+	assert(hdr.sb.st_size == 8589934592);
+	assert(hdr.sb.st_mtime == 1542959190);
+	assert(hdr.sb.st_atime == 1542959522);
+	assert(hdr.sb.st_ctime == 1542959190);
+	assert(strcmp(hdr.name, "big-file.bin") == 0);
+	assert(!hdr.unknown_record);
+	clear_header(&hdr);
+	close(fd);
+
+	fd = open_read("file-size/gnu.tar");
+	assert(read_header(fd, &hdr) == 0);
+	assert(hdr.sb.st_mode == (S_IFREG | 0644));
+	assert(hdr.sb.st_uid == 01750);
+	assert(hdr.sb.st_gid == 01750);
+	assert(hdr.sb.st_size == 8589934592);
+	assert(hdr.sb.st_mtime == 013375730126);
+	assert(hdr.sb.st_atime == 013375730126);
+	assert(hdr.sb.st_ctime == 013375730126);
+	assert(strcmp(hdr.name, "big-file.bin") == 0);
+	assert(!hdr.unknown_record);
+	clear_header(&hdr);
+	close(fd);
+
+	fd = open_read("file-size/12-digit.tar");
+	assert(read_header(fd, &hdr) == 0);
+	assert(hdr.sb.st_mode == (S_IFREG | 0644));
+	assert(hdr.sb.st_uid == 01750);
+	assert(hdr.sb.st_gid == 01750);
+	assert(hdr.sb.st_size == 8589934592);
+	assert(hdr.sb.st_mtime == 013375730126);
+	assert(hdr.sb.st_atime == 013375730126);
+	assert(hdr.sb.st_ctime == 013375730126);
+	assert(strcmp(hdr.name, "big-file.bin") == 0);
+	assert(!hdr.unknown_record);
+	clear_header(&hdr);
+	close(fd);
+
+	return EXIT_SUCCESS;
+}