1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2003-2007 Tim Kientzle 5 * All rights reserved. 6 */ 7 #include "test.h" 8 9 /* 10 * tar -x -P should follow existing symlinks for dirs, but not other 11 * content. Plain tar -x should remove symlinks when they're in the 12 * way of a dir extraction. 13 */ 14 15 DEFINE_TEST(test_symlink_dir) 16 { 17 assertUmask(0); 18 19 assertMakeDir("source", 0755); 20 assertMakeFile("source/file", 0755, "a"); 21 assertMakeFile("source/file2", 0755, "ab"); 22 assertMakeDir("source/dir", 0755); 23 assertMakeDir("source/dir/d", 0755); 24 assertMakeFile("source/dir/f", 0755, "abc"); 25 assertMakeDir("source/dir2", 0755); 26 assertMakeDir("source/dir2/d2", 0755); 27 assertMakeFile("source/dir2/f2", 0755, "abcd"); 28 assertMakeDir("source/dir3", 0755); 29 assertMakeDir("source/dir3/d3", 0755); 30 assertMakeFile("source/dir3/f3", 0755, "abcde"); 31 assertMakeDir("source/dir4", 0755); 32 assertMakeFile("source/dir4/file3", 0755, "abcdef"); 33 assertMakeHardlink("source/dir4/file4", "source/dir4/file3"); 34 35 assertEqualInt(0, 36 systemf("%s -cf test.tar -C source dir dir2 dir3 file file2", 37 testprog)); 38 39 /* Second archive with hardlinks */ 40 assertEqualInt(0, 41 systemf("%s -cf test2.tar -C source dir4", testprog)); 42 43 /* 44 * Extract with -x and without -P. 45 */ 46 assertMakeDir("dest1", 0755); 47 /* "dir" is a symlink to an existing "dest1/real_dir" */ 48 assertMakeDir("dest1/real_dir", 0755); 49 if (canSymlink()) { 50 assertMakeSymlink("dest1/dir", "real_dir", 1); 51 /* "dir2" is a symlink to a non-existing "real_dir2" */ 52 assertMakeSymlink("dest1/dir2", "real_dir2", 1); 53 } else { 54 skipping("Symlinks are not supported on this platform"); 55 } 56 /* "dir3" is a symlink to an existing "non_dir3" */ 57 assertMakeFile("dest1/non_dir3", 0755, "abcdef"); 58 if (canSymlink()) 59 assertMakeSymlink("dest1/dir3", "non_dir3", 1); 60 /* "file" is a symlink to existing "real_file" */ 61 assertMakeFile("dest1/real_file", 0755, "abcdefg"); 62 if (canSymlink()) { 63 assertMakeSymlink("dest1/file", "real_file", 0); 64 /* "file2" is a symlink to non-existing "real_file2" */ 65 assertMakeSymlink("dest1/file2", "real_file2", 0); 66 } 67 assertEqualInt(0, systemf("%s -xf test.tar -C dest1", testprog)); 68 69 /* dest1/dir symlink should be replaced */ 70 failure("symlink to dir was followed when it shouldn't be"); 71 assertIsDir("dest1/dir", -1); 72 /* dest1/dir2 symlink should be replaced */ 73 failure("Broken symlink wasn't replaced with dir"); 74 assertIsDir("dest1/dir2", -1); 75 /* dest1/dir3 symlink should be replaced */ 76 failure("Symlink to non-dir wasn't replaced with dir"); 77 assertIsDir("dest1/dir3", -1); 78 /* dest1/file symlink should be replaced */ 79 failure("Symlink to existing file should be replaced"); 80 assertIsReg("dest1/file", -1); 81 /* dest1/file2 symlink should be replaced */ 82 failure("Symlink to non-existing file should be replaced"); 83 assertIsReg("dest1/file2", -1); 84 85 /* 86 * Extract with both -x and -P 87 */ 88 assertMakeDir("dest2", 0755); 89 /* "dir" is a symlink to existing "real_dir" */ 90 assertMakeDir("dest2/real_dir", 0755); 91 if (canSymlink()) 92 assertMakeSymlink("dest2/dir", "real_dir", 1); 93 /* "dir2" is a symlink to a non-existing "real_dir2" */ 94 if (canSymlink()) 95 assertMakeSymlink("dest2/dir2", "real_dir2", 1); 96 /* "dir3" is a symlink to an existing "non_dir3" */ 97 assertMakeFile("dest2/non_dir3", 0755, "abcdefgh"); 98 if (canSymlink()) 99 assertMakeSymlink("dest2/dir3", "non_dir3", 1); 100 /* "file" is a symlink to existing "real_file" */ 101 assertMakeFile("dest2/real_file", 0755, "abcdefghi"); 102 if (canSymlink()) 103 assertMakeSymlink("dest2/file", "real_file", 0); 104 /* "file2" is a symlink to non-existing "real_file2" */ 105 if (canSymlink()) 106 assertMakeSymlink("dest2/file2", "real_file2", 0); 107 assertEqualInt(0, systemf("%s -xPf test.tar -C dest2", testprog)); 108 109 /* "dir4" is a symlink to existing "real_dir" */ 110 if (canSymlink()) 111 assertMakeSymlink("dest2/dir4", "real_dir", 1); 112 assertEqualInt(0, systemf("%s -xPf test2.tar -C dest2", testprog)); 113 114 /* dest2/dir and dest2/dir4 symlinks should be followed */ 115 if (canSymlink()) { 116 assertIsSymlink("dest2/dir", "real_dir", 1); 117 assertIsSymlink("dest2/dir4", "real_dir", 1); 118 assertIsDir("dest2/real_dir", -1); 119 } 120 121 /* Contents of 'dir' should be restored */ 122 assertIsDir("dest2/dir/d", -1); 123 assertIsReg("dest2/dir/f", -1); 124 assertFileSize("dest2/dir/f", 3); 125 /* dest2/dir2 symlink should be removed */ 126 failure("Broken symlink wasn't replaced with dir"); 127 assertIsDir("dest2/dir2", -1); 128 /* dest2/dir3 symlink should be removed */ 129 failure("Symlink to non-dir wasn't replaced with dir"); 130 assertIsDir("dest2/dir3", -1); 131 /* dest2/file symlink should be removed; 132 * even -P shouldn't follow symlinks for files */ 133 failure("Symlink to existing file should be removed"); 134 assertIsReg("dest2/file", -1); 135 /* dest2/file2 symlink should be removed */ 136 failure("Symlink to non-existing file should be removed"); 137 assertIsReg("dest2/file2", -1); 138 139 /* dest2/dir4/file3 and dest2/dir4/file4 should be hard links */ 140 assertIsHardlink("dest2/dir4/file3", "dest2/dir4/file4"); 141 } 142