mirror of
https://github.com/HDFGroup/hdf5.git
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46467e91b0
Add a CRC algorithm to the library, initially for "small" (<256 byte)
metadata blocks.
Update checksum tests to verify it's working correctly.
Tested:
Linux/32 2.6 (chicago)
Linux/64 2.6 (chicago2)
(Will be testing on more platforms after checkin)
225 lines
7.2 KiB
C
225 lines
7.2 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the files COPYING and Copyright.html. COPYING can be found at the root *
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* of the source code distribution tree; Copyright.html can be found at the *
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* root level of an installed copy of the electronic HDF5 document set and *
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* is linked from the top-level documents page. It can also be found at *
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* http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
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* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/*-------------------------------------------------------------------------
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*
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* Created: tchecksum.c
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* Aug 21 2006
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* Quincey Koziol <koziol@hdfgroup.org>
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*
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* Purpose: Test internal checksum routine(s)
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*
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*-------------------------------------------------------------------------
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*/
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/***********/
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/* Headers */
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/***********/
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#include "testhdf5.h"
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/**********/
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/* Macros */
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/**********/
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#define BUF_LEN 3093 /* No particular value */
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/*******************/
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/* Local variables */
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/*******************/
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uint8_t large_buf[BUF_LEN];
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/****************************************************************
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**
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** test_chksum_size_one(): Checksum 1 byte buffer
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**
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****************************************************************/
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static void
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test_chksum_size_one(void)
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{
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uint8_t buf[1] = {23}; /* Buffer to checksum */
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uint32_t chksum; /* Checksum value */
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/* Buffer w/real data */
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chksum = H5_checksum_fletcher32(buf, sizeof(buf));
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VERIFY(chksum, 0x17001700, "H5_checksum_fletcher32");
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chksum = H5_checksum_crc(buf, sizeof(buf));
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VERIFY(chksum, 0xfa2568b7, "H5_checksum_crc");
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/* Buffer w/zero(s) for data */
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HDmemset(buf, 0, sizeof(buf));
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chksum = H5_checksum_fletcher32(buf, sizeof(buf));
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VERIFY(chksum, 0, "H5_checksum_fletcher32");
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chksum = H5_checksum_crc(buf, sizeof(buf));
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VERIFY(chksum, 0xfa60fb57, "H5_checksum_crc");
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} /* test_chksum_size_one() */
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/****************************************************************
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**
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** test_chksum_size_two(): Checksum 2 byte buffer
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**
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****************************************************************/
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static void
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test_chksum_size_two(void)
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{
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uint8_t buf[2] = {23, 187}; /* Buffer to checksum */
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uint32_t chksum; /* Checksum value */
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/* Buffer w/real data */
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chksum = H5_checksum_fletcher32(buf, sizeof(buf));
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VERIFY(chksum, 0x17bb17bb, "H5_checksum_fletcher32");
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chksum = H5_checksum_crc(buf, sizeof(buf));
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VERIFY(chksum, 0xfc856608, "H5_checksum_crc");
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/* Buffer w/zero(s) for data */
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HDmemset(buf, 0, sizeof(buf));
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chksum = H5_checksum_fletcher32(buf, sizeof(buf));
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VERIFY(chksum, 0, "H5_checksum_fletcher32");
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chksum = H5_checksum_crc(buf, sizeof(buf));
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VERIFY(chksum, 0xfc7e9b20, "H5_checksum_crc");
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} /* test_chksum_size_two() */
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/****************************************************************
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**
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** test_chksum_size_three(): Checksum 3 byte buffer
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**
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****************************************************************/
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static void
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test_chksum_size_three(void)
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{
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uint8_t buf[3] = {23, 187, 98}; /* Buffer to checksum */
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uint32_t chksum; /* Checksum value */
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/* Buffer w/real data */
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chksum = H5_checksum_fletcher32(buf, sizeof(buf));
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VERIFY(chksum, 0x917679bb, "H5_checksum_fletcher32");
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chksum = H5_checksum_crc(buf, sizeof(buf));
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VERIFY(chksum, 0xfebc5d70, "H5_checksum_crc");
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/* Buffer w/zero(s) for data */
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HDmemset(buf, 0, sizeof(buf));
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chksum = H5_checksum_fletcher32(buf, sizeof(buf));
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VERIFY(chksum, 0, "H5_checksum_fletcher32");
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chksum = H5_checksum_crc(buf, sizeof(buf));
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VERIFY(chksum, 0xf9cc4c7a, "H5_checksum_crc");
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} /* test_chksum_size_three() */
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/****************************************************************
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**
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** test_chksum_size_four(): Checksum 4 byte buffer
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**
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****************************************************************/
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static void
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test_chksum_size_four(void)
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{
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uint8_t buf[4] = {23, 187, 98, 217};/* Buffer to checksum */
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uint32_t chksum; /* Checksum value */
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/* Buffer w/real data */
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chksum = H5_checksum_fletcher32(buf, sizeof(buf));
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VERIFY(chksum, 0x924f7a94, "H5_checksum_fletcher32");
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chksum = H5_checksum_crc(buf, sizeof(buf));
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VERIFY(chksum, 0xff398a46, "H5_checksum_crc");
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/* Buffer w/zero(s) for data */
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HDmemset(buf, 0, sizeof(buf));
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chksum = H5_checksum_fletcher32(buf, sizeof(buf));
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VERIFY(chksum, 0, "H5_checksum_fletcher32");
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chksum = H5_checksum_crc(buf, sizeof(buf));
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VERIFY(chksum, 0xff117081, "H5_checksum_crc");
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} /* test_chksum_size_four() */
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/****************************************************************
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**
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** test_chksum_large(): Checksum larger buffer
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**
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****************************************************************/
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static void
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test_chksum_large(void)
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{
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uint32_t chksum; /* Checksum value */
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size_t u; /* Local index variable */
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/* Initialize buffer w/known data */
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for(u = 0; u < BUF_LEN; u++)
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large_buf[u] = u * 3;
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/* Buffer w/real data */
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chksum = H5_checksum_fletcher32(large_buf, sizeof(large_buf));
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VERIFY(chksum, 0x85b4e2a, "H5_checksum_fletcher32");
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chksum = H5_checksum_crc(large_buf, sizeof(large_buf));
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VERIFY(chksum, 0xfbd0f7c0, "H5_checksum_crc");
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/* Buffer w/zero(s) for data */
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HDmemset(large_buf, 0, sizeof(large_buf));
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chksum = H5_checksum_fletcher32(large_buf, sizeof(large_buf));
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VERIFY(chksum, 0, "H5_checksum_fletcher32");
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chksum = H5_checksum_crc(large_buf, sizeof(large_buf));
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VERIFY(chksum, 0xfac8b4c4, "H5_checksum_crc");
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} /* test_chksum_large() */
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/****************************************************************
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**
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** test_checksum(): Main checksum testing routine.
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**
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****************************************************************/
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void
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test_checksum(void)
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{
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/* Output message about test being performed */
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MESSAGE(5, ("Testing checksum algorithms\n"));
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/* Various checks for fletcher32 checksum algorithm */
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test_chksum_size_one(); /* Test buffer w/only 1 byte */
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test_chksum_size_two(); /* Test buffer w/only 2 bytes */
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test_chksum_size_three(); /* Test buffer w/only 3 bytes */
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test_chksum_size_four(); /* Test buffer w/only 4 bytes */
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test_chksum_large(); /* Test buffer w/larger # of bytes */
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} /* test_checksum() */
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/*-------------------------------------------------------------------------
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* Function: cleanup_checksum
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*
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* Purpose: Cleanup temporary test files
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*
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* Return: none
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*
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* Programmer: Quincey Koziol
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* August 21, 2006
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*
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*-------------------------------------------------------------------------
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*/
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void
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cleanup_checksum(void)
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{
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/* no file to clean */
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}
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