test_strip_components.c revision 1.1.1.4
1 /*- 2 * Copyright (c) 2003-2007 Tim Kientzle 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 #include "test.h" 26 27 DEFINE_TEST(test_strip_components) 28 { 29 assertMakeDir("d0", 0755); 30 assertChdir("d0"); 31 assertMakeDir("d1", 0755); 32 assertMakeDir("d1/d2", 0755); 33 assertMakeDir("d1/d2/d3", 0755); 34 assertMakeFile("d1/d2/f1", 0644, ""); 35 assertMakeHardlink("l1", "d1/d2/f1"); 36 assertMakeHardlink("d1/l2", "d1/d2/f1"); 37 if (canSymlink()) { 38 assertMakeSymlink("s1", "d1/d2/f1", 0); 39 assertMakeSymlink("d1/s2", "d2/f1", 0); 40 } 41 assertChdir(".."); 42 43 /* 44 * Test 1: Strip components when extracting archives. 45 */ 46 if (canSymlink()) 47 assertEqualInt(0, systemf("%s -cf test.tar d0/l1 d0/s1 d0/d1", 48 testprog)); 49 else 50 assertEqualInt(0, systemf("%s -cf test.tar d0/l1 d0/d1", 51 testprog)); 52 53 assertMakeDir("target", 0755); 54 assertEqualInt(0, systemf("%s -x -C target --strip-components 2 " 55 "-f test.tar", testprog)); 56 57 failure("d0/ is too short and should not get restored"); 58 assertFileNotExists("target/d0"); 59 failure("d0/d1/ is too short and should not get restored"); 60 assertFileNotExists("target/d1"); 61 failure("d0/s1 is too short and should not get restored"); 62 assertFileNotExists("target/s1"); 63 failure("d0/d1/s2 is a symlink to something that won't be extracted"); 64 /* If platform supports symlinks, target/s2 is a broken symlink. */ 65 /* If platform does not support symlink, target/s2 doesn't exist. */ 66 if (canSymlink()) 67 assertIsSymlink("target/s2", "d2/f1", 0); 68 else 69 assertFileNotExists("target/s2"); 70 failure("d0/d1/d2 should be extracted"); 71 assertIsDir("target/d2", -1); 72 73 /* 74 * Test 1b: Strip components extracting archives involving hardlinks. 75 * 76 * This next is a complicated case. d0/l1, d0/d1/l2, and 77 * d0/d1/d2/f1 are all hardlinks to the same file; d0/l1 can't 78 * be extracted with --strip-components=2 and the other two 79 * can. Remember that tar normally stores the first file with 80 * a body and the other as hardlink entries to the first 81 * appearance. So the final result depends on the order in 82 * which these three names get archived. If d0/l1 is first, 83 * none of the three can be restored. If either of the longer 84 * names are first, then the two longer ones can both be 85 * restored. Note that the "tar -cf" command above explicitly 86 * lists d0/l1 before d0/d1. 87 * 88 * It may be worth extending this test to exercise other 89 * archiving orders. 90 * 91 * Of course, this is all totally different for cpio and newc 92 * formats because the hardlink management is different. 93 * TODO: Rename this to test_strip_components_tar and create 94 * parallel tests for cpio and newc formats. 95 */ 96 failure("d0/l1 is too short and should not get restored"); 97 assertFileNotExists("target/l1"); 98 failure("d0/d1/l2 is a hardlink to file whose name was too short"); 99 assertFileNotExists("target/l2"); 100 failure("d0/d1/d2/f1 is a hardlink to file whose name was too short"); 101 assertFileNotExists("target/d2/f1"); 102 103 /* 104 * Test 2: Strip components when creating archives. 105 */ 106 if (canSymlink()) 107 assertEqualInt(0, systemf("%s --strip-components 2 -cf test2.tar " 108 "d0/l1 d0/s1 d0/d1", testprog)); 109 else 110 assertEqualInt(0, systemf("%s --strip-components 2 -cf test2.tar " 111 "d0/l1 d0/d1", testprog)); 112 113 assertMakeDir("target2", 0755); 114 assertEqualInt(0, systemf("%s -x -C target2 -f test2.tar", testprog)); 115 116 failure("d0/ is too short and should not have been archived"); 117 assertFileNotExists("target2/d0"); 118 failure("d0/d1/ is too short and should not have been archived"); 119 assertFileNotExists("target2/d1"); 120 failure("d0/s1 is too short and should not get restored"); 121 assertFileNotExists("target/s1"); 122 /* If platform supports symlinks, target/s2 is included. */ 123 if (canSymlink()) { 124 failure("d0/d1/s2 is a symlink to something included in archive"); 125 assertIsSymlink("target2/s2", "d2/f1", 0); 126 } 127 failure("d0/d1/d2 should be archived"); 128 assertIsDir("target2/d2", -1); 129 130 /* 131 * Test 2b: Strip components creating archives involving hardlinks. 132 */ 133 failure("d0/l1 is too short and should not have been archived"); 134 assertFileNotExists("target/l1"); 135 failure("d0/d1/l2 is a hardlink to file whose name was too short"); 136 assertFileNotExists("target/l2"); 137 failure("d0/d1/d2/f1 is a hardlink to file whose name was too short"); 138 assertFileNotExists("target/d2/f1"); 139 } 140
Indexes created Mon Jun 01 00:24:59 UTC 2026