ceph/src/zstd/tests/legacy.c

   1 /*
   2  * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
   3  * All rights reserved.
   4  *
   5  * This source code is licensed under both the BSD-style license (found in the
   6  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
   7  * in the COPYING file in the root directory of this source tree).
   8  * You may select, at your option, one of the above-listed licenses.
   9  */
  10
  11 /*
  12     This program uses hard-coded data compressed with Zstd legacy versions
  13     and tests that the API decompresses them correctly
  14 */
  15
  16 /*===========================================
  17 *   Dependencies
  18 *==========================================*/
  19 #include <stddef.h>     /* size_t */
  20 #include <stdlib.h>     /* malloc, free */
  21 #include <stdio.h>      /* fprintf */
  22 #include <string.h>     /* strlen */
  23 #include "zstd.h"
  24 #include "zstd_errors.h"
  25
  26 /*===========================================
  27 *   Macros
  28 *==========================================*/
  29 #define DISPLAY(...)          fprintf(stderr, __VA_ARGS__)
  30
  31 /*===========================================
  32 *   Precompressed frames
  33 *==========================================*/
  34 const char* const COMPRESSED; /* content is at end of file */
  35 size_t const COMPRESSED_SIZE = 917;
  36 const char* const EXPECTED; /* content is at end of file */
  37
  38
  39 int testSimpleAPI(void)
  40 {
  41     size_t const size = strlen(EXPECTED);
  42     char* const output = malloc(size);
  43
  44     if (!output) {
  45         DISPLAY("ERROR: Not enough memory!\n");
  46         return 1;
  47     }
  48
  49     {
  50         size_t const ret = ZSTD_decompress(output, size, COMPRESSED, COMPRESSED_SIZE);
  51         if (ZSTD_isError(ret)) {
  52             if (ret == ZSTD_error_prefix_unknown) {
  53                 DISPLAY("ERROR: Invalid frame magic number, was this compiled "
  54                         "without legacy support?\n");
  55             } else {
  56                 DISPLAY("ERROR: %s\n", ZSTD_getErrorName(ret));
  57             }
  58             return 1;
  59         }
  60         if (ret != size) {
  61             DISPLAY("ERROR: Wrong decoded size\n");
  62         }
  63     }
  64     if (memcmp(EXPECTED, output, size) != 0) {
  65         DISPLAY("ERROR: Wrong decoded output produced\n");
  66         return 1;
  67     }
  68
  69     free(output);
  70     DISPLAY("Simple API OK\n");
  71     return 0;
  72 }
  73
  74 int testStreamingAPI(void)
  75 {
  76     size_t const outBuffSize = ZSTD_DStreamOutSize();
  77     char* const outBuff = malloc(outBuffSize);
  78     ZSTD_DStream* const stream = ZSTD_createDStream();
  79     ZSTD_inBuffer input = { COMPRESSED, COMPRESSED_SIZE, 0 };
  80     size_t outputPos = 0;
  81     int needsInit = 1;
  82
  83     if (outBuff == NULL) {
  84         DISPLAY("ERROR: Could not allocate memory\n");
  85         return 1;
  86     }
  87     if (stream == NULL) {
  88         DISPLAY("ERROR: Could not create dstream\n");
  89         return 1;
  90     }
  91
  92     while (1) {
  93         ZSTD_outBuffer output = {outBuff, outBuffSize, 0};
  94         if (needsInit) {
  95             size_t const ret = ZSTD_initDStream(stream);
  96             if (ZSTD_isError(ret)) {
  97                 DISPLAY("ERROR: %s\n", ZSTD_getErrorName(ret));
  98                 return 1;
  99             }
 100         }
 101         {
 102             size_t const ret = ZSTD_decompressStream(stream, &output, &input);
 103             if (ZSTD_isError(ret)) {
 104                 DISPLAY("ERROR: %s\n", ZSTD_getErrorName(ret));
 105                 return 1;
 106             }
 107
 108             if (ret == 0) {
 109                 needsInit = 1;
 110             }
 111         }
 112
 113         if (memcmp(outBuff, EXPECTED + outputPos, output.pos) != 0) {
 114             DISPLAY("ERROR: Wrong decoded output produced\n");
 115             return 1;
 116         }
 117         outputPos += output.pos;
 118         if (input.pos == input.size && output.pos < output.size) {
 119             break;
 120         }
 121     }
 122
 123     free(outBuff);
 124     ZSTD_freeDStream(stream);
 125     DISPLAY("Streaming API OK\n");
 126     return 0;
 127 }
 128
 129 int main(void)
 130 {
 131     int ret;
 132
 133     ret = testSimpleAPI();
 134     if (ret) return ret;
 135     ret = testStreamingAPI();
 136     if (ret) return ret;
 137
 138     DISPLAY("OK\n");
 139
 140     return 0;
 141 }
 142
 143 /* Consists of the "EXPECTED" string compressed with default settings on
 144     - v0.4.3
 145     - v0.5.0
 146     - v0.6.0
 147     - v0.7.0
 148     - v0.8.0
 149 */
 150 const char* const COMPRESSED =
 151     "\x24\xB5\x2F\xFD\x00\x00\x00\xBB\xB0\x02\xC0\x10\x00\x1E\xB0\x01"
 152     "\x02\x00\x00\x80\x00\xE8\x92\x34\x12\x97\xC8\xDF\xE9\xF3\xEF\x53"
 153     "\xEA\x1D\x27\x4F\x0C\x44\x90\x0C\x8D\xF1\xB4\x89\x17\x00\x18\x00"
 154     "\x18\x00\x3F\xE6\xE2\xE3\x74\xD6\xEC\xC9\x4A\xE0\x71\x71\x42\x3E"
 155     "\x64\x4F\x6A\x45\x4E\x78\xEC\x49\x03\x3F\xC6\x80\xAB\x8F\x75\x5E"
 156     "\x6F\x2E\x3E\x7E\xC6\xDC\x45\x69\x6C\xC5\xFD\xC7\x40\xB8\x84\x8A"
 157     "\x01\xEB\xA8\xD1\x40\x39\x90\x4C\x64\xF8\xEB\x53\xE6\x18\x0B\x67"
 158     "\x12\xAD\xB8\x99\xB3\x5A\x6F\x8A\x19\x03\x01\x50\x67\x56\xF5\x9F"
 159     "\x35\x84\x60\xA0\x60\x91\xC9\x0A\xDC\xAB\xAB\xE0\xE2\x81\xFA\xCF"
 160     "\xC6\xBA\x01\x0E\x00\x54\x00\x00\x19\x00\x00\x54\x14\x00\x24\x24"
 161     "\x04\xFE\x04\x84\x4E\x41\x00\x27\xE2\x02\xC4\xB1\x00\xD2\x51\x00"
 162     "\x79\x58\x41\x28\x00\xE0\x0C\x01\x68\x65\x00\x04\x13\x0C\xDA\x0C"
 163     "\x80\x22\x06\xC0\x00\x00\x25\xB5\x2F\xFD\x00\x00\x00\xAD\x12\xB0"
 164     "\x7D\x1E\xB0\x01\x02\x00\x00\x80\x00\xE8\x92\x34\x12\x97\xC8\xDF"
 165     "\xE9\xF3\xEF\x53\xEA\x1D\x27\x4F\x0C\x44\x90\x0C\x8D\xF1\xB4\x89"
 166     "\x03\x01\x50\x67\x56\xF5\x9F\x35\x84\x60\xA0\x60\x91\xC9\x0A\xDC"
 167     "\xAB\xAB\xE0\xE2\x81\xFA\xCF\xC6\xBA\xEB\xA8\xD1\x40\x39\x90\x4C"
 168     "\x64\xF8\xEB\x53\xE6\x18\x0B\x67\x12\xAD\xB8\x99\xB3\x5A\x6F\x8A"
 169     "\xF9\x63\x0C\xB8\xFA\x58\xE7\xF5\xE6\xE2\xE3\x67\xCC\x5D\x94\xC6"
 170     "\x56\xDC\x7F\x0C\x84\x4B\xA8\xF8\x63\x2E\x3E\x4E\x67\xCD\x9E\xAC"
 171     "\x04\x1E\x17\x27\xE4\x43\xF6\xA4\x56\xE4\x84\xC7\x9E\x34\x0E\x00"
 172     "\x00\x32\x40\x80\xA8\x00\x01\x49\x81\xE0\x3C\x01\x29\x1D\x00\x87"
 173     "\xCE\x80\x75\x08\x80\x72\x24\x00\x7B\x52\x00\x94\x00\x20\xCC\x01"
 174     "\x86\xD2\x00\x81\x09\x83\xC1\x34\xA0\x88\x01\xC0\x00\x00\x26\xB5"
 175     "\x2F\xFD\x42\xEF\x00\x00\xA6\x12\xB0\x7D\x1E\xB0\x01\x02\x00\x00"
 176     "\x54\xA0\xBA\x24\x8D\xC4\x25\xF2\x77\xFA\xFC\xFB\x94\x7A\xC7\xC9"
 177     "\x13\x03\x11\x24\x43\x63\x3C\x6D\x22\x03\x01\x50\x67\x56\xF5\x9F"
 178     "\x35\x84\x60\xA0\x60\x91\xC9\x0A\xDC\xAB\xAB\xE0\xE2\x81\xFA\xCF"
 179     "\xC6\xBA\xEB\xA8\xD1\x40\x39\x90\x4C\x64\xF8\xEB\x53\xE6\x18\x0B"
 180     "\x67\x12\xAD\xB8\x99\xB3\x5A\x6F\x8A\xF9\x63\x0C\xB8\xFA\x58\xE7"
 181     "\xF5\xE6\xE2\xE3\x67\xCC\x5D\x94\xC6\x56\xDC\x7F\x0C\x84\x4B\xA8"
 182     "\xF8\x63\x2E\x3E\x4E\x67\xCD\x9E\xAC\x04\x1E\x17\x27\xE4\x43\xF6"
 183     "\xA4\x56\xE4\x84\xC7\x9E\x34\x0E\x00\x35\x0B\x71\xB5\xC0\x2A\x5C"
 184     "\x26\x94\x22\x20\x8B\x4C\x8D\x13\x47\x58\x67\x15\x6C\xF1\x1C\x4B"
 185     "\x54\x10\x9D\x31\x50\x85\x4B\x54\x0E\x01\x4B\x3D\x01\xC0\x00\x00"
 186     "\x27\xB5\x2F\xFD\x20\xEF\x00\x00\xA6\x12\xE4\x84\x1F\xB0\x01\x10"
 187     "\x00\x00\x00\x35\x59\xA6\xE7\xA1\xEF\x7C\xFC\xBD\x3F\xFF\x9F\xEF"
 188     "\xEE\xEF\x61\xC3\xAA\x31\x1D\x34\x38\x22\x22\x04\x44\x21\x80\x32"
 189     "\xAD\x28\xF3\xD6\x28\x0C\x0A\x0E\xD6\x5C\xAC\x19\x8D\x20\x5F\x45"
 190     "\x02\x2E\x17\x50\x66\x6D\xAC\x8B\x9C\x6E\x07\x73\x46\xBB\x44\x14"
 191     "\xE7\x98\xC3\xB9\x17\x32\x6E\x33\x7C\x0E\x21\xB1\xDB\xCB\x89\x51"
 192     "\x23\x34\xAB\x9D\xBC\x6D\x20\xF5\x03\xA9\x91\x4C\x2E\x1F\x59\xDB"
 193     "\xD9\x35\x67\x4B\x0C\x95\x79\x10\x00\x85\xA6\x96\x95\x2E\xDF\x78"
 194     "\x7B\x4A\x5C\x09\x76\x97\xD1\x5C\x96\x12\x75\x35\xA3\x55\x4A\xD4"
 195     "\x0B\x00\x35\x0B\x71\xB5\xC0\x2A\x5C\xE6\x08\x45\xF1\x39\x43\xF1"
 196     "\x1C\x4B\x54\x10\x9D\x31\x50\x85\x4B\x54\x0E\x01\x4B\x3D\x01\xC0"
 197     "\x00\x00\x28\xB5\x2F\xFD\x24\xEF\x35\x05\x00\x92\x0B\x21\x1F\xB0"
 198     "\x01\x10\x00\x00\x00\x35\x59\xA6\xE7\xA1\xEF\x7C\xFC\xBD\x3F\xFF"
 199     "\x9F\xEF\xEE\xEF\x61\xC3\xAA\x31\x1D\x34\x38\x22\x22\x04\x44\x21"
 200     "\x80\x32\xAD\x28\xF3\xD6\x28\x0C\x0A\x0E\xD6\x5C\xAC\x19\x8D\x20"
 201     "\x5F\x45\x02\x2E\x17\x50\x66\x6D\xAC\x8B\x9C\x6E\x07\x73\x46\xBB"
 202     "\x44\x14\xE7\x98\xC3\xB9\x17\x32\x6E\x33\x7C\x0E\x21\xB1\xDB\xCB"
 203     "\x89\x51\x23\x34\xAB\x9D\xBC\x6D\x20\xF5\x03\xA9\x91\x4C\x2E\x1F"
 204     "\x59\xDB\xD9\x35\x67\x4B\x0C\x95\x79\x10\x00\x85\xA6\x96\x95\x2E"
 205     "\xDF\x78\x7B\x4A\x5C\x09\x76\x97\xD1\x5C\x96\x12\x75\x35\xA3\x55"
 206     "\x4A\xD4\x0B\x00\x35\x0B\x71\xB5\xC0\x2A\x5C\xE6\x08\x45\xF1\x39"
 207     "\x43\xF1\x1C\x4B\x54\x10\x9D\x31\x50\x85\x4B\x54\x0E\x01\x4B\x3D"
 208     "\x01\xD2\x2F\x21\x80";
 209
 210 const char* const EXPECTED =
 211     "snowden is snowed in / he's now then in his snow den / when does the snow end?\n"
 212     "goodbye little dog / you dug some holes in your day / they'll be hard to fill.\n"
 213     "when life shuts a door, / just open it. it’s a door. / that is how doors work.\n"
 214
 215     "snowden is snowed in / he's now then in his snow den / when does the snow end?\n"
 216     "goodbye little dog / you dug some holes in your day / they'll be hard to fill.\n"
 217     "when life shuts a door, / just open it. it’s a door. / that is how doors work.\n"
 218
 219     "snowden is snowed in / he's now then in his snow den / when does the snow end?\n"
 220     "goodbye little dog / you dug some holes in your day / they'll be hard to fill.\n"
 221     "when life shuts a door, / just open it. it’s a door. / that is how doors work.\n"
 222
 223     "snowden is snowed in / he's now then in his snow den / when does the snow end?\n"
 224     "goodbye little dog / you dug some holes in your day / they'll be hard to fill.\n"
 225     "when life shuts a door, / just open it. it’s a door. / that is how doors work.\n"
 226
 227     "snowden is snowed in / he's now then in his snow den / when does the snow end?\n"
 228     "goodbye little dog / you dug some holes in your day / they'll be hard to fill.\n"
 229     "when life shuts a door, / just open it. it’s a door. / that is how doors work.\n";