release/src-rt-6.x.4708/tools/misc/xz/tests/test_check.c

   1 ///////////////////////////////////////////////////////////////////////////////
   2 //
   3 /// \file       test_check.c
   4 /// \brief      Tests integrity checks
   5 ///
   6 /// \todo       Add SHA256
   7 //
   8 //  Author:     Lasse Collin
   9 //
  10 //  This file has been put into the public domain.
  11 //  You can do whatever you want with this file.
  12 //
  13 ///////////////////////////////////////////////////////////////////////////////
  14
  15 #include "tests.h"
  16
  17
  18 static const uint8_t test_string[9] = "123456789";
  19 static const uint8_t test_unaligned[12] = "xxx123456789";
  20
  21
  22 static bool
  23 test_crc32(void)
  24 {
  25         static const uint32_t test_vector = 0xCBF43926;
  26
  27         // Test 1
  28         uint32_t crc = lzma_crc32(test_string, sizeof(test_string), 0);
  29         if (crc != test_vector)
  30                 return true;
  31
  32         // Test 2
  33         crc = lzma_crc32(test_unaligned + 3, sizeof(test_string), 0);
  34         if (crc != test_vector)
  35                 return true;
  36
  37         // Test 3
  38         crc = 0;
  39         for (size_t i = 0; i < sizeof(test_string); ++i)
  40                 crc = lzma_crc32(test_string + i, 1, crc);
  41         if (crc != test_vector)
  42                 return true;
  43
  44         return false;
  45 }
  46
  47
  48 static bool
  49 test_crc64(void)
  50 {
  51         static const uint64_t test_vector = 0x995DC9BBDF1939FA;
  52
  53         // Test 1
  54         uint64_t crc = lzma_crc64(test_string, sizeof(test_string), 0);
  55         if (crc != test_vector)
  56                 return true;
  57
  58         // Test 2
  59         crc = lzma_crc64(test_unaligned + 3, sizeof(test_string), 0);
  60         if (crc != test_vector)
  61                 return true;
  62
  63         // Test 3
  64         crc = 0;
  65         for (size_t i = 0; i < sizeof(test_string); ++i)
  66                 crc = lzma_crc64(test_string + i, 1, crc);
  67         if (crc != test_vector)
  68                 return true;
  69
  70         return false;
  71 }
  72
  73
  74 int
  75 main(void)
  76 {
  77         bool error = false;
  78
  79         error |= test_crc32();
  80         error |= test_crc64();
  81
  82         return error ? 1 : 0;
  83 }