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