From 8c449c503f4c37f72089a0dc50e00631a22ed12a Mon Sep 17 00:00:00 2001 From: David Oberhollenzer Date: Sat, 29 Jun 2019 02:26:11 +0200 Subject: Add support for reading old style GNU sparse tar file format Signed-off-by: David Oberhollenzer --- tests/Makemodule.am | 8 +++- tests/tar_sparse_gnu.c | 127 +++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 133 insertions(+), 2 deletions(-) create mode 100644 tests/tar_sparse_gnu.c (limited to 'tests') 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 +#include +#include +#include +#include +#include + +#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; +} -- cgit v1.2.3