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 __FBSDID("$FreeBSD: src/lib/libarchive/test/test_read_truncated.c,v 1.4 2008/09/01 05:38:33 kientzle Exp $"); 27 28 char buff[1000000]; 29 char buff2[100000]; 30 31 DEFINE_TEST(test_read_truncated) 32 { 33 struct archive_entry *ae; 34 struct archive *a; 35 unsigned int i; 36 size_t used; 37 38 /* Create a new archive in memory. */ 39 assert((a = archive_write_new()) != NULL); 40 assertA(0 == archive_write_set_format_ustar(a)); 41 assertA(0 == archive_write_set_compression_none(a)); 42 assertA(0 == archive_write_open_memory(a, buff, sizeof(buff), &used)); 43 44 /* 45 * Write a file to it. 46 */ 47 assert((ae = archive_entry_new()) != NULL); 48 archive_entry_copy_pathname(ae, "file"); 49 archive_entry_set_mode(ae, S_IFREG | 0755); 50 for (i = 0; i < sizeof(buff2); i++) 51 buff2[i] = (unsigned char)rand(); 52 archive_entry_set_size(ae, sizeof(buff2)); 53 assertA(0 == archive_write_header(a, ae)); 54 archive_entry_free(ae); 55 assertA((int)sizeof(buff2) == archive_write_data(a, buff2, sizeof(buff2))); 56 57 /* Close out the archive. */ 58 assertA(0 == archive_write_close(a)); 59 #if ARCHIVE_VERSION_NUMBER < 2000000 60 archive_write_finish(a); 61 #else 62 assertA(0 == archive_write_finish(a)); 63 #endif 64 65 /* Now, read back a truncated version of the archive and 66 * verify that we get an appropriate error. */ 67 for (i = 1; i < used + 100; i += 100) { 68 assert((a = archive_read_new()) != NULL); 69 assertA(0 == archive_read_support_format_all(a)); 70 assertA(0 == archive_read_support_compression_all(a)); 71 assertA(0 == archive_read_open_memory(a, buff, i)); 72 73 if (i < 512) { 74 assertA(ARCHIVE_FATAL == archive_read_next_header(a, &ae)); 75 goto wrap_up; 76 } else { 77 assertA(0 == archive_read_next_header(a, &ae)); 78 } 79 80 if (i < 512 + sizeof(buff2)) { 81 assertA(ARCHIVE_FATAL == archive_read_data(a, buff2, sizeof(buff2))); 82 goto wrap_up; 83 } else { 84 assertA((int)sizeof(buff2) == archive_read_data(a, buff2, sizeof(buff2))); 85 } 86 87 /* Verify the end of the archive. */ 88 /* Archive must be long enough to capture a 512-byte 89 * block of zeroes after the entry. (POSIX requires a 90 * second block of zeros to be written but libarchive 91 * does not return an error if it can't consume 92 * it.) */ 93 if (i < 512 + 512*((sizeof(buff2) + 511)/512) + 512) { 94 assertA(ARCHIVE_FATAL == archive_read_next_header(a, &ae)); 95 } else { 96 assertA(ARCHIVE_EOF == archive_read_next_header(a, &ae)); 97 } 98 wrap_up: 99 assert(0 == archive_read_close(a)); 100 #if ARCHIVE_VERSION_NUMBER < 2000000 101 archive_read_finish(a); 102 #else 103 assert(0 == archive_read_finish(a)); 104 #endif 105 } 106 107 108 109 /* Same as above, except skip the body instead of reading it. */ 110 for (i = 1; i < used + 100; i += 100) { 111 assert((a = archive_read_new()) != NULL); 112 assertA(0 == archive_read_support_format_all(a)); 113 assertA(0 == archive_read_support_compression_all(a)); 114 assertA(0 == archive_read_open_memory(a, buff, i)); 115 116 if (i < 512) { 117 assertA(ARCHIVE_FATAL == archive_read_next_header(a, &ae)); 118 goto wrap_up2; 119 } else { 120 assertA(0 == archive_read_next_header(a, &ae)); 121 } 122 123 if (i < 512 + 512*((sizeof(buff2)+511)/512)) { 124 assertA(ARCHIVE_FATAL == archive_read_data_skip(a)); 125 goto wrap_up2; 126 } else { 127 assertA(ARCHIVE_OK == archive_read_data_skip(a)); 128 } 129 130 /* Verify the end of the archive. */ 131 /* Archive must be long enough to capture a 512-byte 132 * block of zeroes after the entry. (POSIX requires a 133 * second block of zeros to be written but libarchive 134 * does not return an error if it can't consume 135 * it.) */ 136 if (i < 512 + 512*((sizeof(buff2) + 511)/512) + 512) { 137 assertA(ARCHIVE_FATAL == archive_read_next_header(a, &ae)); 138 } else { 139 assertA(ARCHIVE_EOF == archive_read_next_header(a, &ae)); 140 } 141 wrap_up2: 142 assert(0 == archive_read_close(a)); 143 #if ARCHIVE_VERSION_NUMBER < 2000000 144 archive_read_finish(a); 145 #else 146 assert(0 == archive_read_finish(a)); 147 #endif 148 } 149 } 150