1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2024 Mostyn Bramley-Moore <mostyn@antipode.se>
5 */
6
7 #include "test.h"
8
9 #include <stdlib.h>
10 #include <string.h>
11
12 #if defined(_WIN32) && !defined(__CYGWIN__)
13 #define UNLINK _unlink
14 #else
15 #define UNLINK unlink
16 #endif
17
DEFINE_TEST(test_extract_tar_absolute_paths)18 DEFINE_TEST(test_extract_tar_absolute_paths)
19 {
20 int r;
21
22 // Create an absolute path for a test file inside testworkdir.
23 char *entry_suffix = "/tar-noabs";
24 size_t entry_suffix_length = strlen(entry_suffix);
25 size_t testworkdir_length = strlen(testworkdir);
26 size_t temp_absolute_file_name_length = testworkdir_length + entry_suffix_length;
27 char *temp_absolute_file_name = calloc(1, temp_absolute_file_name_length + 1); // +1 for null character.
28 assertEqualInt(snprintf(temp_absolute_file_name, temp_absolute_file_name_length + 1, "%s%s", testworkdir, entry_suffix),
29 temp_absolute_file_name_length);
30
31 #if defined(_WIN32) && !defined(__CYGWIN__)
32 // I'm unsure how to specify paths with spaces for the test invocation on windows.
33 // Adding quotes doesn't seem to work. We should find a way to escape these paths,
34 // but for now let's fail in a place that's obviously related to the test setup if
35 // testworkdir contains spaces.
36 for (char *p = temp_absolute_file_name; *p != '\0'; p++)
37 {
38 assert(*p != ' ');
39 if (*p == ' ') break;
40 }
41 #endif
42
43 // Create the file.
44 const char *sample_data = "test file from test_extract_tar_absolute_paths";
45 assertMakeFile(temp_absolute_file_name, 0644, sample_data);
46
47 // Create an archive with the test file, using an absolute path.
48 #if defined(_WIN32) && !defined(__CYGWIN__)
49 r = systemf("%s --absolute-paths -cf test.tar %s", testprog, temp_absolute_file_name);
50 #else
51 r = systemf("%s --absolute-paths -cf test.tar \"%s\"", testprog, temp_absolute_file_name);
52 #endif
53 assertEqualInt(r, 0);
54
55 UNLINK(temp_absolute_file_name);
56
57 // Extracting the archive without -P / --absolute-paths should strip leading drive letter or slash
58 r = systemf("%s -xf test.tar 2>test.err", testprog);
59 assertEqualInt(r, 0);
60 assertFileNotExists(temp_absolute_file_name);
61
62 // Check that the mangled path exists.
63 #if defined(_WIN32) && !defined(__CYGWIN__)
64 assertFileExists(temp_absolute_file_name + 3); // Skip the drive letter, colon and slash.
65 UNLINK(temp_absolute_file_name + 3);
66 #else
67 assertFileExists(temp_absolute_file_name + 1); // Skip the slash.
68 UNLINK(temp_absolute_file_name + 1);
69 #endif
70
71 // Extracting the archive with -P / --absolute-paths should create the file.
72 r = systemf("%s --absolute-paths -xf test.tar", testprog);
73 assertEqualInt(r, 0);
74 assertFileExists(temp_absolute_file_name);
75
76 // Check that the mangled path wasn't created.
77 #if defined(_WIN32) && !defined(__CYGWIN__)
78 assertFileNotExists(temp_absolute_file_name + 3); // Skip the drive letter, colon and slash.
79 #else
80 assertFileNotExists(temp_absolute_file_name + 1); // Skip the slash.
81 #endif
82 }
83