1/*- 2 * Copyright (c) 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 * in this position and unchanged. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include "test.h" 28__FBSDID("$FreeBSD: head/lib/libarchive/test/test_write_compress_gzip.c 191183 2009-04-17 01:06:31Z kientzle $"); 29 30/* 31 * A basic exercise of gzip reading and writing. 32 * 33 * TODO: Add a reference file and make sure we can decompress that. 34 */ 35 36DEFINE_TEST(test_write_compress_gzip) 37{ 38 struct archive_entry *ae; 39 struct archive* a; 40 char *buff, *data; 41 size_t buffsize, datasize; 42 char path[16]; 43 size_t used1, used2; 44 int i, r; 45 46 buffsize = 2000000; 47 assert(NULL != (buff = (char *)malloc(buffsize))); 48 49 datasize = 10000; 50 assert(NULL != (data = (char *)malloc(datasize))); 51 memset(data, 0, datasize); 52 53 /* 54 * Write a 100 files and read them all back. 55 */ 56 assert((a = archive_write_new()) != NULL); 57 assertA(0 == archive_write_set_format_ustar(a)); 58 r = archive_write_set_compression_gzip(a); 59 if (r == ARCHIVE_FATAL) { 60 skipping("gzip writing not supported on this platform"); 61 assertEqualInt(ARCHIVE_OK, archive_write_finish(a)); 62 return; 63 } 64 assertEqualIntA(a, ARCHIVE_OK, 65 archive_write_set_bytes_per_block(a, 10)); 66 assertEqualInt(ARCHIVE_COMPRESSION_GZIP, archive_compression(a)); 67 assertEqualString("gzip", archive_compression_name(a)); 68 assertA(0 == archive_write_open_memory(a, buff, buffsize, &used1)); 69 assertEqualInt(ARCHIVE_COMPRESSION_GZIP, archive_compression(a)); 70 assertEqualString("gzip", archive_compression_name(a)); 71 assert((ae = archive_entry_new()) != NULL); 72 archive_entry_set_filetype(ae, AE_IFREG); 73 archive_entry_set_size(ae, datasize); 74 for (i = 0; i < 100; i++) { 75 sprintf(path, "file%03d", i); 76 archive_entry_copy_pathname(ae, path); 77 assertA(0 == archive_write_header(a, ae)); 78 assertA(datasize 79 == (size_t)archive_write_data(a, data, datasize)); 80 } 81 archive_entry_free(ae); 82 archive_write_close(a); 83 assert(0 == archive_write_finish(a)); 84 85 assert((a = archive_read_new()) != NULL); 86 assertA(0 == archive_read_support_format_all(a)); 87 r = archive_read_support_compression_gzip(a); 88 if (r == ARCHIVE_WARN) { 89 skipping("Can't verify gzip writing by reading back;" 90 " gzip reading not fully supported on this platform"); 91 } else { 92 assertEqualIntA(a, ARCHIVE_OK, 93 archive_read_support_compression_all(a)); 94 assertEqualIntA(a, ARCHIVE_OK, 95 archive_read_open_memory(a, buff, used1)); 96 for (i = 0; i < 100; i++) { 97 sprintf(path, "file%03d", i); 98 if (!assertEqualInt(ARCHIVE_OK, 99 archive_read_next_header(a, &ae))) 100 break; 101 assertEqualString(path, archive_entry_pathname(ae)); 102 assertEqualInt((int)datasize, archive_entry_size(ae)); 103 } 104 assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a)); 105 } 106 assertEqualInt(ARCHIVE_OK, archive_read_finish(a)); 107 108 /* 109 * Repeat the cycle again, this time setting some compression 110 * options. 111 */ 112 assert((a = archive_write_new()) != NULL); 113 assertA(0 == archive_write_set_format_ustar(a)); 114 assertEqualIntA(a, ARCHIVE_OK, 115 archive_write_set_bytes_per_block(a, 10)); 116 assertA(0 == archive_write_set_compression_gzip(a)); 117 assertEqualIntA(a, ARCHIVE_WARN, 118 archive_write_set_compressor_options(a, "nonexistent-option=0")); 119 assertEqualIntA(a, ARCHIVE_WARN, 120 archive_write_set_compressor_options(a, "compression-level=abc")); 121 assertEqualIntA(a, ARCHIVE_WARN, 122 archive_write_set_compressor_options(a, "compression-level=99")); 123 assertEqualIntA(a, ARCHIVE_OK, 124 archive_write_set_compressor_options(a, "compression-level=9")); 125 assertA(0 == archive_write_open_memory(a, buff, buffsize, &used2)); 126 for (i = 0; i < 100; i++) { 127 sprintf(path, "file%03d", i); 128 assert((ae = archive_entry_new()) != NULL); 129 archive_entry_copy_pathname(ae, path); 130 archive_entry_set_size(ae, datasize); 131 archive_entry_set_filetype(ae, AE_IFREG); 132 assertA(0 == archive_write_header(a, ae)); 133 assertA(datasize == (size_t)archive_write_data(a, data, datasize)); 134 archive_entry_free(ae); 135 } 136 archive_write_close(a); 137 assert(0 == archive_write_finish(a)); 138 139 /* Curiously, this test fails; the test data above compresses 140 * better at default compression than at level 9. */ 141 /* 142 failure("compression-level=9 wrote %d bytes, default wrote %d bytes", 143 (int)used2, (int)used1); 144 assert(used2 < used1); 145 */ 146 147 assert((a = archive_read_new()) != NULL); 148 assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a)); 149 r = archive_read_support_compression_gzip(a); 150 if (r == ARCHIVE_WARN) { 151 skipping("gzip reading not fully supported on this platform"); 152 } else { 153 assertEqualIntA(a, ARCHIVE_OK, 154 archive_read_support_compression_all(a)); 155 assertEqualIntA(a, ARCHIVE_OK, 156 archive_read_open_memory(a, buff, used2)); 157 for (i = 0; i < 100; i++) { 158 sprintf(path, "file%03d", i); 159 if (!assertEqualInt(ARCHIVE_OK, 160 archive_read_next_header(a, &ae))) 161 break; 162 assertEqualString(path, archive_entry_pathname(ae)); 163 assertEqualInt((int)datasize, archive_entry_size(ae)); 164 } 165 assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a)); 166 } 167 assertEqualInt(ARCHIVE_OK, archive_read_finish(a)); 168 169 /* 170 * Repeat again, with much lower compression. 171 */ 172 assert((a = archive_write_new()) != NULL); 173 assertA(0 == archive_write_set_format_ustar(a)); 174 assertEqualIntA(a, ARCHIVE_OK, 175 archive_write_set_bytes_per_block(a, 10)); 176 assertA(0 == archive_write_set_compression_gzip(a)); 177 assertEqualIntA(a, ARCHIVE_OK, 178 archive_write_set_compressor_options(a, "compression-level=0")); 179 assertA(0 == archive_write_open_memory(a, buff, buffsize, &used2)); 180 for (i = 0; i < 100; i++) { 181 sprintf(path, "file%03d", i); 182 assert((ae = archive_entry_new()) != NULL); 183 archive_entry_copy_pathname(ae, path); 184 archive_entry_set_size(ae, datasize); 185 archive_entry_set_filetype(ae, AE_IFREG); 186 assertA(0 == archive_write_header(a, ae)); 187 failure("Writing file %s", path); 188 assertEqualIntA(a, datasize, 189 (size_t)archive_write_data(a, data, datasize)); 190 archive_entry_free(ae); 191 } 192 archive_write_close(a); 193 assert(0 == archive_write_finish(a)); 194 195 /* Level 0 really does result in larger data. */ 196 failure("Compression-level=0 wrote %d bytes; default wrote %d bytes", 197 (int)used2, (int)used1); 198 assert(used2 > used1); 199 200 assert((a = archive_read_new()) != NULL); 201 assertA(0 == archive_read_support_format_all(a)); 202 assertA(0 == archive_read_support_compression_all(a)); 203 r = archive_read_support_compression_gzip(a); 204 if (r == ARCHIVE_WARN) { 205 skipping("gzip reading not fully supported on this platform"); 206 } else { 207 assertEqualIntA(a, ARCHIVE_OK, 208 archive_read_open_memory(a, buff, used2)); 209 for (i = 0; i < 100; i++) { 210 sprintf(path, "file%03d", i); 211 if (!assertEqualInt(ARCHIVE_OK, 212 archive_read_next_header(a, &ae))) 213 break; 214 assertEqualString(path, archive_entry_pathname(ae)); 215 assertEqualInt((int)datasize, archive_entry_size(ae)); 216 } 217 assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a)); 218 } 219 assertEqualInt(ARCHIVE_OK, archive_read_finish(a)); 220 221 /* 222 * Test various premature shutdown scenarios to make sure we 223 * don't crash or leak memory. 224 */ 225 assert((a = archive_write_new()) != NULL); 226 assertEqualIntA(a, ARCHIVE_OK, archive_write_set_compression_gzip(a)); 227 assertEqualInt(ARCHIVE_OK, archive_write_finish(a)); 228 229 assert((a = archive_write_new()) != NULL); 230 assertEqualIntA(a, ARCHIVE_OK, archive_write_set_compression_gzip(a)); 231 assertEqualInt(ARCHIVE_OK, archive_write_close(a)); 232 assertEqualInt(ARCHIVE_OK, archive_write_finish(a)); 233 234 assert((a = archive_write_new()) != NULL); 235 assertEqualIntA(a, ARCHIVE_OK, archive_write_set_format_ustar(a)); 236 assertEqualIntA(a, ARCHIVE_OK, archive_write_set_compression_gzip(a)); 237 assertEqualInt(ARCHIVE_OK, archive_write_close(a)); 238 assertEqualInt(ARCHIVE_OK, archive_write_finish(a)); 239 240 assert((a = archive_write_new()) != NULL); 241 assertEqualIntA(a, ARCHIVE_OK, archive_write_set_format_ustar(a)); 242 assertEqualIntA(a, ARCHIVE_OK, archive_write_set_compression_gzip(a)); 243 assertA(0 == archive_write_open_memory(a, buff, buffsize, &used2)); 244 assertEqualInt(ARCHIVE_OK, archive_write_close(a)); 245 assertEqualInt(ARCHIVE_OK, archive_write_finish(a)); 246 247 /* 248 * Clean up. 249 */ 250 free(data); 251 free(buff); 252} 253