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 28static char buff[1000000]; 29static char buff2[100000]; 30 31DEFINE_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 for (i = 0; i < sizeof(buff2); i++) 51 buff2[i] = (unsigned char)rand(); 52 archive_entry_set_size(ae, sizeof(buff2)); 53 assertEqualIntA(a, ARCHIVE_OK, archive_write_header(a, ae)); 54 archive_entry_free(ae); 55 assertEqualIntA(a, sizeof(buff2), archive_write_data(a, buff2, sizeof(buff2))); 56 57 /* Close out the archive. */ 58 assertEqualIntA(a, ARCHIVE_OK, archive_write_close(a)); 59 assertEqualInt(ARCHIVE_OK, archive_write_free(a)); 60 61 /* Now, read back a truncated version of the archive and 62 * verify that we get an appropriate error. */ 63 for (i = 1; i < used + 100; i += 100) { 64 assert((a = archive_read_new()) != NULL); 65 assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a)); 66 assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_all(a)); 67 if (i < 512) { 68 assertEqualIntA(a, ARCHIVE_FATAL, archive_read_open_memory(a, buff, i)); 69 goto wrap_up; 70 } else { 71 assertEqualIntA(a, ARCHIVE_OK, archive_read_open_memory(a, buff, i)); 72 } 73 assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae)); 74 75 if (i < 512 + sizeof(buff2)) { 76 assertEqualIntA(a, ARCHIVE_FATAL, archive_read_data(a, buff2, sizeof(buff2))); 77 goto wrap_up; 78 } else { 79 assertEqualIntA(a, sizeof(buff2), archive_read_data(a, buff2, sizeof(buff2))); 80 } 81 82 /* Verify the end of the archive. */ 83 /* Archive must be long enough to capture a 512-byte 84 * block of zeroes after the entry. (POSIX requires a 85 * second block of zeros to be written but libarchive 86 * does not return an error if it can't consume 87 * it.) */ 88 if (i < 512 + 512*((sizeof(buff2) + 511)/512) + 512) { 89 assertEqualIntA(a, ARCHIVE_FATAL, archive_read_next_header(a, &ae)); 90 } else { 91 assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae)); 92 } 93 wrap_up: 94 assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a)); 95 assertEqualInt(ARCHIVE_OK, archive_read_free(a)); 96 } 97 98 99 100 /* Same as above, except skip the body instead of reading it. */ 101 for (i = 1; i < used + 100; i += 100) { 102 assert((a = archive_read_new()) != NULL); 103 assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a)); 104 assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_all(a)); 105 if (i < 512) { 106 assertEqualIntA(a, ARCHIVE_FATAL, archive_read_open_memory(a, buff, i)); 107 goto wrap_up2; 108 } else { 109 assertEqualIntA(a, ARCHIVE_OK, archive_read_open_memory(a, buff, i)); 110 } 111 assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae)); 112 113 if (i < 512 + 512*((sizeof(buff2)+511)/512)) { 114 assertEqualIntA(a, ARCHIVE_FATAL, archive_read_data_skip(a)); 115 goto wrap_up2; 116 } else { 117 assertEqualIntA(a, ARCHIVE_OK, archive_read_data_skip(a)); 118 } 119 120 /* Verify the end of the archive. */ 121 /* Archive must be long enough to capture a 512-byte 122 * block of zeroes after the entry. (POSIX requires a 123 * second block of zeros to be written but libarchive 124 * does not return an error if it can't consume 125 * it.) */ 126 if (i < 512 + 512*((sizeof(buff2) + 511)/512) + 512) { 127 assertEqualIntA(a, ARCHIVE_FATAL, archive_read_next_header(a, &ae)); 128 } else { 129 assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae)); 130 } 131 wrap_up2: 132 assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a)); 133 assertEqualInt(ARCHIVE_OK, archive_read_free(a)); 134 } 135} 136