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("$FreeBSD$"); 27 28 static char buff[1000000]; 29 static 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 assertEqualIntA(a, ARCHIVE_OK, archive_write_set_format_ustar(a)); 41 assertEqualIntA(a, ARCHIVE_OK, archive_write_add_filter_none(a)); 42 assertEqualIntA(a, ARCHIVE_OK, 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 fill_with_pseudorandom_data(buff2, sizeof(buff2)); 51 archive_entry_set_size(ae, sizeof(buff2)); 52 assertEqualIntA(a, ARCHIVE_OK, archive_write_header(a, ae)); 53 archive_entry_free(ae); 54 assertEqualIntA(a, sizeof(buff2), archive_write_data(a, buff2, sizeof(buff2))); 55 56 /* Close out the archive. */ 57 assertEqualIntA(a, ARCHIVE_OK, archive_write_close(a)); 58 assertEqualInt(ARCHIVE_OK, archive_write_free(a)); 59 60 /* Now, read back a truncated version of the archive and 61 * verify that we get an appropriate error. */ 62 for (i = 1; i < used + 100; i += 100) { 63 assert((a = archive_read_new()) != NULL); 64 assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a)); 65 assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_all(a)); 66 if (i < 512) { 67 assertEqualIntA(a, ARCHIVE_FATAL, archive_read_open_memory(a, buff, i)); 68 goto wrap_up; 69 } else { 70 assertEqualIntA(a, ARCHIVE_OK, archive_read_open_memory(a, buff, i)); 71 } 72 assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae)); 73 74 if (i < 512 + sizeof(buff2)) { 75 assertEqualIntA(a, ARCHIVE_FATAL, archive_read_data(a, buff2, sizeof(buff2))); 76 goto wrap_up; 77 } else { 78 assertEqualIntA(a, sizeof(buff2), archive_read_data(a, buff2, sizeof(buff2))); 79 } 80 81 /* Verify the end of the archive. */ 82 /* Archive must be long enough to capture a 512-byte 83 * block of zeroes after the entry. (POSIX requires a 84 * second block of zeros to be written but libarchive 85 * does not return an error if it can't consume 86 * it.) */ 87 if (i < 512 + 512*((sizeof(buff2) + 511)/512) + 512) { 88 assertEqualIntA(a, ARCHIVE_FATAL, archive_read_next_header(a, &ae)); 89 } else { 90 assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae)); 91 } 92 wrap_up: 93 assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a)); 94 assertEqualInt(ARCHIVE_OK, archive_read_free(a)); 95 } 96 97 98 99 /* Same as above, except skip the body instead of reading it. */ 100 for (i = 1; i < used + 100; i += 100) { 101 assert((a = archive_read_new()) != NULL); 102 assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a)); 103 assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_all(a)); 104 if (i < 512) { 105 assertEqualIntA(a, ARCHIVE_FATAL, archive_read_open_memory(a, buff, i)); 106 goto wrap_up2; 107 } else { 108 assertEqualIntA(a, ARCHIVE_OK, archive_read_open_memory(a, buff, i)); 109 } 110 assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae)); 111 112 if (i < 512 + 512*((sizeof(buff2)+511)/512)) { 113 assertEqualIntA(a, ARCHIVE_FATAL, archive_read_data_skip(a)); 114 goto wrap_up2; 115 } else { 116 assertEqualIntA(a, ARCHIVE_OK, archive_read_data_skip(a)); 117 } 118 119 /* Verify the end of the archive. */ 120 /* Archive must be long enough to capture a 512-byte 121 * block of zeroes after the entry. (POSIX requires a 122 * second block of zeros to be written but libarchive 123 * does not return an error if it can't consume 124 * it.) */ 125 if (i < 512 + 512*((sizeof(buff2) + 511)/512) + 512) { 126 assertEqualIntA(a, ARCHIVE_FATAL, archive_read_next_header(a, &ae)); 127 } else { 128 assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae)); 129 } 130 wrap_up2: 131 assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a)); 132 assertEqualInt(ARCHIVE_OK, archive_read_free(a)); 133 } 134 } 135