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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-06-29 02:26:11 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-06-29 02:26:57 +0200
commit8c449c503f4c37f72089a0dc50e00631a22ed12a (patch)
treee280aabfca0b5c12cafde614883aa05a17fa719e /tests
parentd2f27dc653767f36885916d9ecd7b059673d26d8 (diff)
Add support for reading old style GNU sparse tar file format
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'tests')
-rw-r--r--tests/Makemodule.am8
-rw-r--r--tests/tar_sparse_gnu.c127
2 files changed, 133 insertions, 2 deletions
diff --git a/tests/Makemodule.am b/tests/Makemodule.am
index e9cb8c4..004f83c 100644
--- a/tests/Makemodule.am
+++ b/tests/Makemodule.am
@@ -46,16 +46,20 @@ test_tar_ustar_SOURCES = tests/tar_ustar.c
test_tar_ustar_LDADD = libtar.a libutil.a
test_tar_ustar_CPPFLAGS = $(AM_CPPFLAGS) -DTESTPATH=$(top_srcdir)/tests/tar
+test_tar_sparse_gnu_SOURCES = tests/tar_sparse_gnu.c
+test_tar_sparse_gnu_LDADD = libtar.a libutil.a
+test_tar_sparse_gnu_CPPFLAGS = $(AM_CPPFLAGS) -DTESTPATH=$(top_srcdir)/tests/tar
+
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
check_PROGRAMS += test_fstree_from_file test_fstree_init test_fstree_xattr
-check_PROGRAMS += test_tar_ustar test_tar_pax test_tar_gnu
+check_PROGRAMS += test_tar_ustar test_tar_pax test_tar_gnu test_tar_sparse_gnu
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_ustar test_tar_pax
-TESTS += test_tar_gnu
+TESTS += test_tar_gnu test_tar_sparse_gnu
EXTRA_DIST += $(top_srcdir)/tests/tar
diff --git a/tests/tar_sparse_gnu.c b/tests/tar_sparse_gnu.c
new file mode 100644
index 0000000..2f2e1c5
--- /dev/null
+++ b/tests/tar_sparse_gnu.c
@@ -0,0 +1,127 @@
+/* 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_sparse_data_t *sparse;
+ tar_header_decoded_t hdr;
+ int fd;
+
+ assert(chdir(TEST_PATH) == 0);
+
+ fd = open_read("sparse-files/gnu-small.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 == 524288);
+ assert(strcmp(hdr.name, "input.bin") == 0);
+ assert(!hdr.unknown_record);
+
+ sparse = hdr.sparse;
+ assert(sparse != NULL);
+ assert(sparse->offset == 0);
+ assert(sparse->count == 4096);
+
+ sparse = sparse->next;
+ assert(sparse != NULL);
+ assert(sparse->offset == 262144);
+ assert(sparse->count == 4096);
+
+ sparse = sparse->next;
+ assert(sparse != NULL);
+ assert(sparse->offset == 524288);
+ assert(sparse->count == 0);
+
+ assert(sparse->next == NULL);
+
+ clear_header(&hdr);
+ close(fd);
+
+ fd = open_read("sparse-files/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 == 2097152);
+ assert(strcmp(hdr.name, "input.bin") == 0);
+ assert(!hdr.unknown_record);
+
+ sparse = hdr.sparse;
+ assert(sparse != NULL);
+ assert(sparse->offset == 0);
+ assert(sparse->count == 4096);
+
+ sparse = sparse->next;
+ assert(sparse != NULL);
+ assert(sparse->offset == 262144);
+ assert(sparse->count == 4096);
+
+ sparse = sparse->next;
+ assert(sparse != NULL);
+ assert(sparse->offset == 524288);
+ assert(sparse->count == 4096);
+
+ sparse = sparse->next;
+ assert(sparse != NULL);
+ assert(sparse->offset == 786432);
+ assert(sparse->count == 4096);
+
+ sparse = sparse->next;
+ assert(sparse != NULL);
+ assert(sparse->offset == 1048576);
+ assert(sparse->count == 4096);
+
+ sparse = sparse->next;
+ assert(sparse != NULL);
+ assert(sparse->offset == 1310720);
+ assert(sparse->count == 4096);
+
+ sparse = sparse->next;
+ assert(sparse != NULL);
+ assert(sparse->offset == 1572864);
+ assert(sparse->count == 4096);
+
+ sparse = sparse->next;
+ assert(sparse != NULL);
+ assert(sparse->offset == 1835008);
+ assert(sparse->count == 4096);
+
+ sparse = sparse->next;
+ assert(sparse != NULL);
+ assert(sparse->offset == 2097152);
+ assert(sparse->count == 0);
+
+ sparse = sparse->next;
+ assert(sparse == NULL);
+
+ clear_header(&hdr);
+ close(fd);
+
+ return EXIT_SUCCESS;
+}