456be4cfc1
Signed-off-by: Roy Oursler <roy.j.oursler@intel.com> Reviewed-by: Greg Tucker <greg.b.tucker@intel.com>
1286 lines
32 KiB
C
1286 lines
32 KiB
C
/**********************************************************************
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Copyright(c) 2011-2016 Intel Corporation All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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* Neither the name of Intel Corporation nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**********************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "igzip_lib.h"
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#include "inflate.h"
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#include "crc_inflate.h"
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#include <math.h>
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#ifndef RANDOMS
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# define RANDOMS 50
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#endif
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#ifndef TEST_SEED
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# define TEST_SEED 0x1234
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#endif
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#define IBUF_SIZE (1024*1024)
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#ifndef IGZIP_USE_GZIP_FORMAT
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# define DEFLATE 1
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#endif
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#define str1 "Short test string"
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#define str2 "one two three four five six seven eight nine ten eleven twelve " \
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"thirteen fourteen fifteen sixteen"
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#define TYPE0_HDR_SIZE 5 /* Size of a type 0 blocks header in bytes */
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#define TYPE0_MAX_SIZE 65535 /* Max length of a type 0 block in bytes (excludes the header) */
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#define MAX_LOOPS 20
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/* Defines for the possible error conditions */
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enum IGZIP_TEST_ERROR_CODES {
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IGZIP_COMP_OK,
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MALLOC_FAILED,
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FILE_READ_FAILED,
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COMPRESS_INCORRECT_STATE,
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COMPRESS_INPUT_STREAM_INTEGRITY_ERROR,
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COMPRESS_OUTPUT_STREAM_INTEGRITY_ERROR,
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COMPRESS_END_OF_STREAM_NOT_SET,
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COMPRESS_ALL_INPUT_FAIL,
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COMPRESS_OUT_BUFFER_OVERFLOW,
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COMPRESS_LOOP_COUNT_OVERFLOW,
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COMPRESS_GENERAL_ERROR,
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INFLATE_END_OF_INPUT,
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INFLATE_INVALID_BLOCK_HEADER,
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INFLATE_INVALID_SYMBOL,
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INFLATE_OUT_BUFFER_OVERFLOW,
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INFLATE_INVALID_NON_COMPRESSED_BLOCK_LENGTH,
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INFLATE_LEFTOVER_INPUT,
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INFLATE_INCORRECT_OUTPUT_SIZE,
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INFLATE_INVALID_LOOK_BACK_DISTANCE,
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INVALID_GZIP_HEADER,
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INCORRECT_GZIP_TRAILER,
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INFLATE_GENERAL_ERROR,
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INVALID_FLUSH_ERROR,
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OVERFLOW_TEST_ERROR,
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RESULT_ERROR
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};
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const int hdr_bytes = 300;
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#ifndef DEFLATE
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const uint8_t gzip_hdr[10] = {
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0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0xff
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};
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const uint32_t gzip_hdr_bytes = 10;
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const uint32_t gzip_trl_bytes = 8;
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const int trl_bytes = 8;
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const int gzip_extra_bytes = 18;
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#else
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const int trl_bytes = 0;
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const int gzip_extra_bytes = 0;
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#endif
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#define HISTORY_SIZE 32*1024
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#define MIN_LENGTH 3
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#define MIN_DIST 1
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/* Create random compressible data. This is achieved by randomly choosing a
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* random character, or to repeat previous data in the stream for a random
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* length and look back distance. The probability of a random character or a
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* repeat being chosen is semi-randomly chosen by setting max_repeat_data to be
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* differing values */
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void create_rand_repeat_data(uint8_t * data, int size)
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{
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uint32_t next_data;
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uint8_t *data_start = data;
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uint32_t length, distance;
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uint32_t max_repeat_data = 256;
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uint32_t power = rand() % 32;
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/* An array of the powers of 2 (except the final element which is 0) */
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const uint32_t power_of_2_array[] = {
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0x00000001, 0x00000002, 0x00000004, 0x00000008,
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0x00000010, 0x00000020, 0x00000040, 0x00000080,
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0x00000100, 0x00000200, 0x00000400, 0x00000800,
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0x00001000, 0x00002000, 0x00004000, 0x00008000,
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0x00010000, 0x00020000, 0x00040000, 0x00080000,
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0x00100000, 0x00200000, 0x00400000, 0x00800000,
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0x01000000, 0x02000000, 0x04000000, 0x08000000,
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0x10000000, 0x20000000, 0x40000000, 0x00000000
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};
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max_repeat_data += power_of_2_array[power];
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if (size-- > 0)
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*data++ = rand();
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while (size > 0) {
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next_data = rand() % max_repeat_data;
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if (next_data < 256) {
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*data++ = next_data;
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size--;
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} else if (size < 3) {
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*data++ = rand() % 256;
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size--;
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} else {
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length = (rand() % 256) + MIN_LENGTH;
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if (length > size)
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length = (rand() % (size - 2)) + MIN_LENGTH;
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distance = (rand() % HISTORY_SIZE) + MIN_DIST;
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if (distance > data - data_start)
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distance = (rand() % (data - data_start)) + MIN_DIST;
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size -= length;
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if (distance <= length) {
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while (length-- > 0) {
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*data = *(data - distance);
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data++;
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}
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} else
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memcpy(data, data - distance, length);
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}
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}
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}
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void print_error(int error_code)
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{
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switch (error_code) {
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case IGZIP_COMP_OK:
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break;
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case MALLOC_FAILED:
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printf("error: failed to allocate memory\n");
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break;
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case FILE_READ_FAILED:
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printf("error: failed to read in file\n");
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break;
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case COMPRESS_INCORRECT_STATE:
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printf("error: incorrect stream internal state\n");
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break;
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case COMPRESS_INPUT_STREAM_INTEGRITY_ERROR:
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printf("error: inconsistent stream input buffer\n");
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break;
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case COMPRESS_OUTPUT_STREAM_INTEGRITY_ERROR:
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printf("error: inconsistent stream output buffer\n");
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break;
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case COMPRESS_END_OF_STREAM_NOT_SET:
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printf("error: end of stream not set\n");
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break;
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case COMPRESS_ALL_INPUT_FAIL:
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printf("error: not all input data compressed\n");
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break;
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case COMPRESS_OUT_BUFFER_OVERFLOW:
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printf("error: output buffer overflow while compressing data\n");
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break;
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case COMPRESS_GENERAL_ERROR:
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printf("error: compression failed\n");
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break;
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case INFLATE_END_OF_INPUT:
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printf("error: did not decompress all input\n");
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break;
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case INFLATE_INVALID_BLOCK_HEADER:
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printf("error: invalid header\n");
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break;
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case INFLATE_INVALID_SYMBOL:
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printf("error: invalid symbol found when decompressing input\n");
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break;
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case INFLATE_OUT_BUFFER_OVERFLOW:
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printf("error: output buffer overflow while decompressing data\n");
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break;
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case INFLATE_INVALID_NON_COMPRESSED_BLOCK_LENGTH:
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printf("error: invalid length bits in non-compressed block\n");
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break;
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case INFLATE_GENERAL_ERROR:
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printf("error: decompression failed\n");
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break;
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case INFLATE_LEFTOVER_INPUT:
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printf("error: the trailer of igzip output contains junk\n");
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break;
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case INFLATE_INCORRECT_OUTPUT_SIZE:
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printf("error: incorrect amount of data was decompressed\n");
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break;
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case INFLATE_INVALID_LOOK_BACK_DISTANCE:
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printf("error: invalid look back distance found while decompressing\n");
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break;
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case INVALID_GZIP_HEADER:
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printf("error: incorrect gzip header found when inflating data\n");
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break;
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case INCORRECT_GZIP_TRAILER:
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printf("error: incorrect gzip trailer found when inflating data\n");
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break;
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case INVALID_FLUSH_ERROR:
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printf("error: invalid flush did not cause compression to error\n");
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break;
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case RESULT_ERROR:
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printf("error: decompressed data is not the same as the compressed data\n");
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break;
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case OVERFLOW_TEST_ERROR:
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printf("error: overflow undetected\n");
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break;
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default:
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printf("error: unknown error code\n");
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}
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}
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void print_uint8_t(uint8_t * array, uint64_t length)
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{
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int i;
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const int line_size = 16;
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printf("Length = %lu", length);
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for (i = 0; i < length; i++) {
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if ((i % line_size) == 0)
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printf("\n0x%08x\t", i);
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else
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printf(" ");
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printf("0x%02x,", array[i]);
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}
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printf("\n");
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}
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#ifndef DEFLATE
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uint32_t check_gzip_header(uint8_t * z_buf)
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{
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/* These values are defined in RFC 1952 page 4 */
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const uint8_t ID1 = 0x1f, ID2 = 0x8b, CM = 0x08, FLG = 0;
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uint32_t ret = 0;
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int i;
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/* Verify that the gzip header is the one used in hufftables_c.c */
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for (i = 0; i < gzip_hdr_bytes; i++)
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if (z_buf[i] != gzip_hdr[i])
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ret = INVALID_GZIP_HEADER;
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/* Verify that the gzip header is a valid gzip header */
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if (*z_buf++ != ID1)
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ret = INVALID_GZIP_HEADER;
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if (*z_buf++ != ID2)
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ret = INVALID_GZIP_HEADER;
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/* Verfiy compression method is Deflate */
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if (*z_buf++ != CM)
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ret = INVALID_GZIP_HEADER;
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/* The following comparison is specific to how gzip headers are written in igzip */
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/* Verify no extra flags are set */
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if (*z_buf != FLG)
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ret = INVALID_GZIP_HEADER;
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/* The last 6 bytes in the gzip header do not contain any information
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* important to decomrpessing the data */
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return ret;
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}
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uint32_t check_gzip_trl(struct inflate_state * gstream)
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{
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uint8_t *index = NULL;
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uint32_t crc, ret = 0;
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index = gstream->next_out - gstream->total_out;
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crc = find_crc(index, gstream->total_out);
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if (gstream->total_out != *(uint32_t *) (gstream->next_in + 4) ||
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crc != *(uint32_t *) gstream->next_in)
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ret = INCORRECT_GZIP_TRAILER;
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return ret;
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}
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#endif
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/* Inflate the compressed data and check that the decompressed data agrees with the input data */
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int inflate_check(uint8_t * z_buf, int z_size, uint8_t * in_buf, int in_size)
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{
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/* Test inflate with reference inflate */
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int ret = 0;
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struct inflate_state gstream;
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uint32_t test_size = in_size;
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uint8_t *test_buf = NULL;
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int mem_result = 0;
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assert(in_buf != NULL);
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if (in_size > 0) {
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test_buf = malloc(test_size);
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if (test_buf == NULL)
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return MALLOC_FAILED;
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}
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if (test_buf != NULL)
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memset(test_buf, 0xff, test_size);
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#ifndef DEFLATE
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int gzip_hdr_result, gzip_trl_result;
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gzip_hdr_result = check_gzip_header(z_buf);
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z_buf += gzip_hdr_bytes;
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z_size -= gzip_hdr_bytes;
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#endif
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isal_inflate_init(&gstream, z_buf, z_size, test_buf, test_size);
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ret = isal_inflate_stateless(&gstream);
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if (test_buf != NULL)
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mem_result = memcmp(in_buf, test_buf, in_size);
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#ifdef VERBOSE
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int i;
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if (mem_result)
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for (i = 0; i < in_size; i++) {
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if (in_buf[i] != test_buf[i]) {
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printf("First incorrect data at 0x%x of 0x%x, 0x%x != 0x%x\n",
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i, in_size, in_buf[i], test_buf[i]);
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break;
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}
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}
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#endif
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#ifndef DEFLATE
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gzip_trl_result = check_gzip_trl(&gstream);
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gstream.avail_in -= gzip_trl_bytes;
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gstream.next_in += gzip_trl_bytes;
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#endif
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if (test_buf != NULL)
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free(test_buf);
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switch (ret) {
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case 0:
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break;
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case END_OF_INPUT:
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return INFLATE_END_OF_INPUT;
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break;
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case INVALID_BLOCK_HEADER:
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return INFLATE_INVALID_BLOCK_HEADER;
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break;
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case INVALID_SYMBOL:
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return INFLATE_INVALID_SYMBOL;
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break;
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case OUT_BUFFER_OVERFLOW:
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return INFLATE_OUT_BUFFER_OVERFLOW;
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break;
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case INVALID_NON_COMPRESSED_BLOCK_LENGTH:
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return INFLATE_INVALID_NON_COMPRESSED_BLOCK_LENGTH;
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break;
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case INVALID_LOOK_BACK_DISTANCE:
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return INFLATE_INVALID_LOOK_BACK_DISTANCE;
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break;
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default:
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return INFLATE_GENERAL_ERROR;
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break;
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}
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if (gstream.avail_in != 0)
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return INFLATE_LEFTOVER_INPUT;
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if (gstream.total_out != in_size)
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return INFLATE_INCORRECT_OUTPUT_SIZE;
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if (mem_result)
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return RESULT_ERROR;
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#ifndef DEFLATE
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if (gzip_hdr_result)
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return INVALID_GZIP_HEADER;
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if (gzip_trl_result)
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return INCORRECT_GZIP_TRAILER;
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#endif
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return 0;
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}
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/* Check if that the state of the data stream is consistent */
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int stream_valid_check(struct isal_zstream *stream, uint8_t * in_buf, uint32_t in_size,
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uint8_t * out_buf, uint32_t out_size, uint32_t in_processed,
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uint32_t out_processed, uint32_t data_size)
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{
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uint32_t total_in, in_buffer_size, total_out, out_buffer_size;
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total_in =
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(in_size ==
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0) ? in_processed : (in_processed - in_size) + (stream->next_in - in_buf);
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in_buffer_size = (in_size == 0) ? 0 : stream->next_in - in_buf + stream->avail_in;
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/* Check for a consistent amount of data processed */
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if (total_in != stream->total_in || in_buffer_size != in_size)
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return COMPRESS_INPUT_STREAM_INTEGRITY_ERROR;
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total_out =
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(out_size == 0) ? out_processed : out_processed + (stream->next_out - out_buf);
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out_buffer_size = (out_size == 0) ? 0 : stream->next_out - out_buf + stream->avail_out;
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/* Check for a consistent amount of data compressed */
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if (total_out != stream->total_out || out_buffer_size != out_size) {
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return COMPRESS_OUTPUT_STREAM_INTEGRITY_ERROR;
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}
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return 0;
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}
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/* Performs compression with checks to discover and verify the state of the
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* stream
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* stream: compress data structure which has been initialized to use
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* in_buf and out_buf as the buffers
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* data_size: size of all input data
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* compressed_size: size of all available output buffers
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* in_buf: next buffer of data to be compressed
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* in_size: size of in_buf
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* out_buf: next out put buffer where data is stored
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* out_size: size of out_buf
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* in_processed: the amount of input data which has been loaded into buffers
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* to be compressed, this includes the data in in_buf
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* out_processed: the amount of output data which has been compressed and stored,
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* this does not include the data in the current out_buf
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*/
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int isal_deflate_with_checks(struct isal_zstream *stream, uint32_t data_size,
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uint32_t compressed_size, uint8_t * in_buf, uint32_t in_size,
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uint32_t in_processed, uint8_t * out_buf, uint32_t out_size,
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uint32_t out_processed)
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{
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int ret, stream_check;
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struct isal_zstate *state = &stream->internal_state;
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#ifdef VERBOSE
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printf("Pre compression\n");
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printf
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("data_size = 0x%05x, in_processed = 0x%05x, in_size = 0x%05x, avail_in = 0x%05x, total_in = 0x%05x\n",
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data_size, in_processed, in_size, stream->avail_in, stream->total_in);
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printf
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("compressed_size = 0x%05x, out_processed = 0x%05x, out_size = 0x%05x, avail_out = 0x%05x, total_out = 0x%05x\n",
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compressed_size, out_processed, out_size, stream->avail_out, stream->total_out);
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#endif
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ret = isal_deflate(stream);
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#ifdef VERBOSE
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printf("Post compression\n");
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printf
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("data_size = 0x%05x, in_processed = 0x%05x, in_size = 0x%05x, avail_in = 0x%05x, total_in = 0x%05x\n",
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data_size, in_processed, in_size, stream->avail_in, stream->total_in);
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printf
|
|
("compressed_size = 0x%05x, out_processed = 0x%05x, out_size = 0x%05x, avail_out = 0x%05x, total_out = 0x%05x\n",
|
|
compressed_size, out_processed, out_size, stream->avail_out, stream->total_out);
|
|
printf("\n\n");
|
|
#endif
|
|
|
|
/* Verify the stream is in a valid state */
|
|
stream_check = stream_valid_check(stream, in_buf, in_size, out_buf, out_size,
|
|
in_processed, out_processed, data_size);
|
|
|
|
if (stream_check != 0)
|
|
return stream_check;
|
|
|
|
if (ret != IGZIP_COMP_OK)
|
|
return COMPRESS_GENERAL_ERROR;
|
|
|
|
/* Check if the compression is completed */
|
|
if (state->state != ZSTATE_END)
|
|
if (compressed_size - out_processed - (out_size - stream->avail_out) <= 0)
|
|
return COMPRESS_OUT_BUFFER_OVERFLOW;
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
/* Compress the input data into the output buffer where the input buffer and
|
|
* output buffer are randomly segmented to test state information for the
|
|
* compression*/
|
|
int compress_multi_pass(uint8_t * data, uint32_t data_size, uint8_t * compressed_buf,
|
|
uint32_t * compressed_size, uint32_t flush_type)
|
|
{
|
|
int ret = IGZIP_COMP_OK;
|
|
uint8_t *in_buf = NULL, *out_buf = NULL;
|
|
uint32_t in_size = 0, out_size = 0;
|
|
uint32_t in_processed = 0, out_processed = 0;
|
|
struct isal_zstream stream;
|
|
struct isal_zstate *state = &stream.internal_state;
|
|
uint32_t loop_count = 0;
|
|
|
|
#ifdef VERBOSE
|
|
printf("Starting Compress Multi Pass\n");
|
|
#endif
|
|
|
|
create_rand_repeat_data((uint8_t *) & stream, sizeof(stream));
|
|
|
|
isal_deflate_init(&stream);
|
|
|
|
if (state->state != ZSTATE_NEW_HDR)
|
|
return COMPRESS_INCORRECT_STATE;
|
|
|
|
stream.flush = flush_type;
|
|
stream.end_of_stream = 0;
|
|
|
|
/* These are set here to allow the loop to run correctly */
|
|
stream.avail_in = 0;
|
|
stream.avail_out = 0;
|
|
|
|
while (1) {
|
|
loop_count++;
|
|
|
|
/* Setup in buffer for next round of compression */
|
|
if (stream.avail_in == 0) {
|
|
if (flush_type != SYNC_FLUSH || state->state == ZSTATE_NEW_HDR) {
|
|
/* Randomly choose size of the next out buffer */
|
|
in_size = rand() % (data_size + 1);
|
|
|
|
/* Limit size of buffer to be smaller than maximum */
|
|
if (in_size >= data_size - in_processed) {
|
|
in_size = data_size - in_processed;
|
|
stream.end_of_stream = 1;
|
|
}
|
|
|
|
if (in_size != 0) {
|
|
if (in_buf != NULL) {
|
|
free(in_buf);
|
|
in_buf = NULL;
|
|
}
|
|
|
|
in_buf = malloc(in_size);
|
|
if (in_buf == NULL) {
|
|
ret = MALLOC_FAILED;
|
|
break;
|
|
}
|
|
memcpy(in_buf, data + in_processed, in_size);
|
|
in_processed += in_size;
|
|
|
|
stream.avail_in = in_size;
|
|
stream.next_in = in_buf;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Setup out buffer for next round of compression */
|
|
if (stream.avail_out == 0) {
|
|
/* Save compressed data inot compressed_buf */
|
|
if (out_buf != NULL) {
|
|
memcpy(compressed_buf + out_processed, out_buf,
|
|
out_size - stream.avail_out);
|
|
out_processed += out_size - stream.avail_out;
|
|
}
|
|
|
|
/* Randomly choose size of the next out buffer */
|
|
out_size = rand() % (*compressed_size + 1);
|
|
|
|
/* Limit size of buffer to be smaller than maximum */
|
|
if (out_size > *compressed_size - out_processed)
|
|
out_size = *compressed_size - out_processed;
|
|
|
|
if (out_size != 0) {
|
|
if (out_buf != NULL) {
|
|
free(out_buf);
|
|
out_buf = NULL;
|
|
}
|
|
|
|
out_buf = malloc(out_size);
|
|
if (out_buf == NULL) {
|
|
ret = MALLOC_FAILED;
|
|
break;
|
|
}
|
|
|
|
stream.avail_out = out_size;
|
|
stream.next_out = out_buf;
|
|
}
|
|
}
|
|
|
|
ret =
|
|
isal_deflate_with_checks(&stream, data_size, *compressed_size, in_buf,
|
|
in_size, in_processed, out_buf, out_size,
|
|
out_processed);
|
|
|
|
if (ret) {
|
|
if (ret == COMPRESS_OUT_BUFFER_OVERFLOW
|
|
|| ret == COMPRESS_INCORRECT_STATE)
|
|
memcpy(compressed_buf + out_processed, out_buf, out_size);
|
|
break;
|
|
}
|
|
|
|
/* Check if the compression is completed */
|
|
if (state->state == ZSTATE_END) {
|
|
memcpy(compressed_buf + out_processed, out_buf, out_size);
|
|
*compressed_size = stream.total_out;
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
if (in_buf != NULL)
|
|
free(in_buf);
|
|
if (out_buf != NULL)
|
|
free(out_buf);
|
|
|
|
if (ret == COMPRESS_OUT_BUFFER_OVERFLOW && flush_type == SYNC_FLUSH
|
|
&& loop_count >= MAX_LOOPS)
|
|
ret = COMPRESS_LOOP_COUNT_OVERFLOW;
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
/* Compress the input data into the outbuffer in one call to isal_deflate */
|
|
int compress_single_pass(uint8_t * data, uint32_t data_size, uint8_t * compressed_buf,
|
|
uint32_t * compressed_size, uint32_t flush_type)
|
|
{
|
|
int ret = IGZIP_COMP_OK;
|
|
struct isal_zstream stream;
|
|
struct isal_zstate *state = &stream.internal_state;
|
|
|
|
#ifdef VERBOSE
|
|
printf("Starting Compress Single Pass\n");
|
|
#endif
|
|
|
|
create_rand_repeat_data((uint8_t *) & stream, sizeof(stream));
|
|
|
|
isal_deflate_init(&stream);
|
|
|
|
if (state->state != ZSTATE_NEW_HDR)
|
|
return COMPRESS_INCORRECT_STATE;
|
|
|
|
stream.flush = flush_type;
|
|
stream.avail_in = data_size;
|
|
stream.next_in = data;
|
|
stream.avail_out = *compressed_size;
|
|
stream.next_out = compressed_buf;
|
|
stream.end_of_stream = 1;
|
|
|
|
ret =
|
|
isal_deflate_with_checks(&stream, data_size, *compressed_size, data, data_size,
|
|
data_size, compressed_buf, *compressed_size, 0);
|
|
|
|
/* Check if the compression is completed */
|
|
if (state->state == ZSTATE_END)
|
|
*compressed_size = stream.total_out;
|
|
else if (flush_type == SYNC_FLUSH && stream.avail_out < 16)
|
|
ret = COMPRESS_OUT_BUFFER_OVERFLOW;
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
/* Statelessly compress the input buffer into the output buffer */
|
|
int compress_stateless(uint8_t * data, uint32_t data_size, uint8_t * compressed_buf,
|
|
uint32_t * compressed_size)
|
|
{
|
|
int ret = IGZIP_COMP_OK;
|
|
struct isal_zstream stream;
|
|
|
|
create_rand_repeat_data((uint8_t *) & stream, sizeof(stream));
|
|
|
|
isal_deflate_init(&stream);
|
|
|
|
stream.avail_in = data_size;
|
|
stream.end_of_stream = 1;
|
|
stream.next_in = data;
|
|
stream.flush = NO_FLUSH;
|
|
|
|
stream.avail_out = *compressed_size;
|
|
stream.next_out = compressed_buf;
|
|
|
|
ret = isal_deflate_stateless(&stream);
|
|
|
|
/* verify the stream */
|
|
if (stream.next_in - data != stream.total_in ||
|
|
stream.total_in + stream.avail_in != data_size)
|
|
return COMPRESS_INPUT_STREAM_INTEGRITY_ERROR;
|
|
|
|
if (stream.next_out - compressed_buf != stream.total_out ||
|
|
stream.total_out + stream.avail_out != *compressed_size)
|
|
return COMPRESS_OUTPUT_STREAM_INTEGRITY_ERROR;
|
|
|
|
if (ret != IGZIP_COMP_OK) {
|
|
if (ret == STATELESS_OVERFLOW)
|
|
return COMPRESS_OUT_BUFFER_OVERFLOW;
|
|
else
|
|
return COMPRESS_GENERAL_ERROR;
|
|
}
|
|
|
|
if (!stream.end_of_stream) {
|
|
return COMPRESS_END_OF_STREAM_NOT_SET;
|
|
}
|
|
|
|
if (stream.avail_in != 0)
|
|
return COMPRESS_ALL_INPUT_FAIL;
|
|
|
|
*compressed_size = stream.total_out;
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
/*Compress the input buffer into the output buffer, but switch the flush type in
|
|
* the middle of the compression to test what happens*/
|
|
int compress_swap_flush(uint8_t * data, uint32_t data_size, uint8_t * compressed_buf,
|
|
uint32_t * compressed_size, uint32_t flush_type)
|
|
{
|
|
int ret = IGZIP_COMP_OK;
|
|
struct isal_zstream stream;
|
|
struct isal_zstate *state = &stream.internal_state;
|
|
uint32_t partial_size;
|
|
|
|
#ifdef VERBOSE
|
|
printf("Starting Compress Swap Flush\n");
|
|
#endif
|
|
|
|
isal_deflate_init(&stream);
|
|
|
|
if (state->state != ZSTATE_NEW_HDR)
|
|
return COMPRESS_INCORRECT_STATE;
|
|
|
|
partial_size = rand() % (data_size + 1);
|
|
|
|
stream.flush = flush_type;
|
|
stream.avail_in = partial_size;
|
|
stream.next_in = data;
|
|
stream.avail_out = *compressed_size;
|
|
stream.next_out = compressed_buf;
|
|
stream.end_of_stream = 0;
|
|
|
|
ret =
|
|
isal_deflate_with_checks(&stream, data_size, *compressed_size, data, partial_size,
|
|
partial_size, compressed_buf, *compressed_size, 0);
|
|
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (flush_type == NO_FLUSH)
|
|
flush_type = SYNC_FLUSH;
|
|
else
|
|
flush_type = NO_FLUSH;
|
|
|
|
stream.flush = flush_type;
|
|
stream.avail_in = data_size - partial_size;
|
|
stream.next_in = data + partial_size;
|
|
stream.end_of_stream = 1;
|
|
|
|
ret =
|
|
isal_deflate_with_checks(&stream, data_size, *compressed_size, data + partial_size,
|
|
data_size - partial_size, data_size, compressed_buf,
|
|
*compressed_size, 0);
|
|
|
|
if (ret == COMPRESS_GENERAL_ERROR)
|
|
return INVALID_FLUSH_ERROR;
|
|
|
|
*compressed_size = stream.total_out;
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Test isal_deflate_stateless */
|
|
int test_compress_stateless(uint8_t * in_buf, uint32_t in_size)
|
|
{
|
|
int ret = IGZIP_COMP_OK;
|
|
uint32_t z_size, overflow;
|
|
uint8_t *z_buf = NULL;
|
|
|
|
/* Test non-overflow case where a type 0 block is not written */
|
|
z_size = 2 * in_size + hdr_bytes + trl_bytes;
|
|
|
|
z_buf = malloc(z_size);
|
|
|
|
if (z_buf == NULL)
|
|
return MALLOC_FAILED;
|
|
create_rand_repeat_data(z_buf, z_size);
|
|
|
|
ret = compress_stateless(in_buf, in_size, z_buf, &z_size);
|
|
|
|
if (!ret)
|
|
ret = inflate_check(z_buf, z_size, in_buf, in_size);
|
|
|
|
if (z_buf != NULL) {
|
|
free(z_buf);
|
|
z_buf = NULL;
|
|
}
|
|
|
|
print_error(ret);
|
|
|
|
/*Test non-overflow case where a type 0 block is possible to be written */
|
|
z_size =
|
|
TYPE0_HDR_SIZE * ((in_size + TYPE0_MAX_SIZE - 1) / TYPE0_MAX_SIZE) + in_size +
|
|
gzip_extra_bytes;
|
|
|
|
if (z_size == gzip_extra_bytes)
|
|
z_size += TYPE0_HDR_SIZE;
|
|
|
|
if (z_size < 8)
|
|
z_size = 8;
|
|
|
|
z_buf = malloc(z_size);
|
|
|
|
if (z_buf == NULL)
|
|
return MALLOC_FAILED;
|
|
|
|
create_rand_repeat_data(z_buf, z_size);
|
|
|
|
ret = compress_stateless(in_buf, in_size, z_buf, &z_size);
|
|
if (!ret)
|
|
ret = inflate_check(z_buf, z_size, in_buf, in_size);
|
|
#ifdef VERBOSE
|
|
if (ret) {
|
|
printf("Compressed array: ");
|
|
print_uint8_t(z_buf, z_size);
|
|
printf("\n");
|
|
printf("Data: ");
|
|
print_uint8_t(in_buf, in_size);
|
|
}
|
|
#endif
|
|
|
|
if (!ret) {
|
|
free(z_buf);
|
|
z_buf = NULL;
|
|
|
|
/* Test random overflow case */
|
|
z_size = rand() % z_size;
|
|
|
|
if (z_size > in_size)
|
|
z_size = rand() & in_size;
|
|
|
|
if (z_size > 0) {
|
|
z_buf = malloc(z_size);
|
|
|
|
if (z_buf == NULL)
|
|
return MALLOC_FAILED;
|
|
}
|
|
|
|
overflow = compress_stateless(in_buf, in_size, z_buf, &z_size);
|
|
|
|
if (overflow != COMPRESS_OUT_BUFFER_OVERFLOW) {
|
|
#ifdef VERBOSE
|
|
printf("overflow error = %d\n", overflow);
|
|
print_error(overflow);
|
|
if (overflow == 0) {
|
|
overflow = inflate_check(z_buf, z_size, in_buf, in_size);
|
|
printf("inflate ret = %d\n", overflow);
|
|
print_error(overflow);
|
|
}
|
|
printf("Compressed array: ");
|
|
print_uint8_t(z_buf, z_size);
|
|
printf("\n");
|
|
printf("Data: ");
|
|
print_uint8_t(in_buf, in_size);
|
|
#endif
|
|
ret = OVERFLOW_TEST_ERROR;
|
|
}
|
|
}
|
|
|
|
print_error(ret);
|
|
|
|
if (z_buf != NULL)
|
|
free(z_buf);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Test isal_deflate */
|
|
int test_compress(uint8_t * in_buf, uint32_t in_size, uint32_t flush_type)
|
|
{
|
|
int ret = IGZIP_COMP_OK, fin_ret = IGZIP_COMP_OK;
|
|
uint32_t overflow = 0;
|
|
uint32_t z_size, z_size_max, z_compressed_size;
|
|
uint8_t *z_buf = NULL;
|
|
|
|
/* Test a non overflow case */
|
|
if (flush_type == NO_FLUSH)
|
|
z_size_max = 2 * in_size + hdr_bytes + trl_bytes + 2;
|
|
else if (flush_type == SYNC_FLUSH)
|
|
z_size_max = 2 * in_size + MAX_LOOPS * (hdr_bytes + trl_bytes + 5);
|
|
else {
|
|
printf("Invalid Flush Parameter\n");
|
|
return COMPRESS_GENERAL_ERROR;
|
|
}
|
|
|
|
z_size = z_size_max;
|
|
|
|
z_buf = malloc(z_size);
|
|
if (z_buf == NULL) {
|
|
print_error(MALLOC_FAILED);
|
|
return MALLOC_FAILED;
|
|
}
|
|
create_rand_repeat_data(z_buf, z_size_max);
|
|
|
|
ret = compress_single_pass(in_buf, in_size, z_buf, &z_size, flush_type);
|
|
|
|
if (!ret)
|
|
ret = inflate_check(z_buf, z_size, in_buf, in_size);
|
|
|
|
if (ret) {
|
|
#ifdef VERBOSE
|
|
printf("Compressed array: ");
|
|
print_uint8_t(z_buf, z_size);
|
|
printf("\n");
|
|
printf("Data: ");
|
|
print_uint8_t(in_buf, in_size);
|
|
#endif
|
|
printf("Failed on compress single pass\n");
|
|
print_error(ret);
|
|
}
|
|
|
|
fin_ret |= ret;
|
|
|
|
z_compressed_size = z_size;
|
|
z_size = z_size_max;
|
|
create_rand_repeat_data(z_buf, z_size_max);
|
|
|
|
ret = compress_multi_pass(in_buf, in_size, z_buf, &z_size, flush_type);
|
|
|
|
if (!ret)
|
|
ret = inflate_check(z_buf, z_size, in_buf, in_size);
|
|
|
|
if (ret) {
|
|
#ifdef VERBOSE
|
|
printf("Compressed array: ");
|
|
print_uint8_t(z_buf, z_size);
|
|
printf("\n");
|
|
printf("Data: ");
|
|
print_uint8_t(in_buf, in_size);
|
|
#endif
|
|
printf("Failed on compress multi pass\n");
|
|
print_error(ret);
|
|
}
|
|
|
|
fin_ret |= ret;
|
|
|
|
ret = 0;
|
|
|
|
/* Test random overflow case */
|
|
if (flush_type == SYNC_FLUSH && z_compressed_size > in_size)
|
|
z_compressed_size = in_size + 1;
|
|
|
|
z_size = rand() % z_compressed_size;
|
|
create_rand_repeat_data(z_buf, z_size_max);
|
|
|
|
overflow = compress_single_pass(in_buf, in_size, z_buf, &z_size, flush_type);
|
|
|
|
if (overflow != COMPRESS_OUT_BUFFER_OVERFLOW) {
|
|
if (overflow == 0)
|
|
ret = inflate_check(z_buf, z_size, in_buf, in_size);
|
|
|
|
/* Rarely single pass overflow will compresses data
|
|
* better than the initial run. This is to stop that
|
|
* case from erroring. */
|
|
if (overflow != 0 || ret != 0) {
|
|
#ifdef VERBOSE
|
|
printf("overflow error = %d\n", overflow);
|
|
print_error(overflow);
|
|
printf("inflate ret = %d\n", ret);
|
|
print_error(overflow);
|
|
|
|
printf("Compressed array: ");
|
|
print_uint8_t(z_buf, z_size);
|
|
printf("\n");
|
|
printf("Data: ");
|
|
print_uint8_t(in_buf, in_size);
|
|
#endif
|
|
printf("Failed on compress multi pass overflow\n");
|
|
print_error(ret);
|
|
ret = OVERFLOW_TEST_ERROR;
|
|
}
|
|
}
|
|
|
|
fin_ret |= ret;
|
|
|
|
if (flush_type == NO_FLUSH) {
|
|
create_rand_repeat_data(z_buf, z_size_max);
|
|
|
|
overflow = compress_multi_pass(in_buf, in_size, z_buf, &z_size, flush_type);
|
|
|
|
if (overflow != COMPRESS_OUT_BUFFER_OVERFLOW) {
|
|
if (overflow == 0)
|
|
ret = inflate_check(z_buf, z_size, in_buf, in_size);
|
|
|
|
/* Rarely multi pass overflow will compresses data
|
|
* better than the initial run. This is to stop that
|
|
* case from erroring */
|
|
if (overflow != 0 || ret != 0) {
|
|
#ifdef VERBOSE
|
|
printf("overflow error = %d\n", overflow);
|
|
print_error(overflow);
|
|
printf("inflate ret = %d\n", ret);
|
|
print_error(overflow);
|
|
|
|
printf("Compressed array: ");
|
|
print_uint8_t(z_buf, z_size);
|
|
printf("\n");
|
|
printf("Data: ");
|
|
print_uint8_t(in_buf, in_size);
|
|
#endif
|
|
printf("Failed on compress multi pass overflow\n");
|
|
print_error(ret);
|
|
ret = OVERFLOW_TEST_ERROR;
|
|
}
|
|
}
|
|
fin_ret |= ret;
|
|
}
|
|
|
|
free(z_buf);
|
|
|
|
return fin_ret;
|
|
}
|
|
|
|
/* Test swapping flush types in the middle of compression */
|
|
int test_flush(uint8_t * in_buf, uint32_t in_size)
|
|
{
|
|
int fin_ret = IGZIP_COMP_OK, ret;
|
|
uint32_t z_size, flush_type = 0;
|
|
uint8_t *z_buf = NULL;
|
|
|
|
z_size = 2 * in_size + 2 * (hdr_bytes + trl_bytes) + 8;
|
|
|
|
z_buf = malloc(z_size);
|
|
|
|
if (z_buf == NULL)
|
|
return MALLOC_FAILED;
|
|
|
|
create_rand_repeat_data(z_buf, z_size);
|
|
|
|
while (flush_type == NO_FLUSH || flush_type == SYNC_FLUSH)
|
|
flush_type = rand();
|
|
|
|
/* Test invalid flush */
|
|
ret = compress_single_pass(in_buf, in_size, z_buf, &z_size, flush_type);
|
|
|
|
if (ret == COMPRESS_GENERAL_ERROR)
|
|
ret = 0;
|
|
else {
|
|
printf("Failed when passing invalid flush parameter\n");
|
|
ret = INVALID_FLUSH_ERROR;
|
|
}
|
|
|
|
fin_ret |= ret;
|
|
print_error(ret);
|
|
|
|
create_rand_repeat_data(z_buf, z_size);
|
|
|
|
/* Test the valid case of SYNC_FLUSH followed by NO_FLUSH */
|
|
ret = compress_swap_flush(in_buf, in_size, z_buf, &z_size, rand() % 2);
|
|
|
|
if (!ret)
|
|
ret = inflate_check(z_buf, z_size, in_buf, in_size);
|
|
|
|
if (ret) {
|
|
#ifdef VERBOSE
|
|
printf("Compressed array: ");
|
|
print_uint8_t(z_buf, z_size);
|
|
printf("\n");
|
|
printf("Data: ");
|
|
print_uint8_t(in_buf, in_size);
|
|
#endif
|
|
printf("Failed on swapping from SYNC_FLUSH to NO_FLUSH\n");
|
|
print_error(ret);
|
|
}
|
|
|
|
fin_ret |= ret;
|
|
print_error(ret);
|
|
|
|
return fin_ret;
|
|
}
|
|
|
|
int get_filesize(FILE * f)
|
|
{
|
|
int curr, end;
|
|
|
|
curr = ftell(f); /* Save current position */
|
|
fseek(f, 0L, SEEK_END);
|
|
end = ftell(f);
|
|
fseek(f, curr, SEEK_SET); /* Restore position */
|
|
return end;
|
|
}
|
|
|
|
/* Run multiple compression tests on data stored in a file */
|
|
int test_compress_file(char *file_name)
|
|
{
|
|
int ret = IGZIP_COMP_OK;
|
|
uint32_t in_size;
|
|
uint8_t *in_buf = NULL;
|
|
FILE *in_file = NULL;
|
|
|
|
in_file = fopen(file_name, "rb");
|
|
if (!in_file)
|
|
return FILE_READ_FAILED;
|
|
|
|
in_size = get_filesize(in_file);
|
|
if (in_size != 0) {
|
|
in_buf = malloc(in_size);
|
|
if (in_buf == NULL)
|
|
return MALLOC_FAILED;
|
|
fread(in_buf, 1, in_size, in_file);
|
|
}
|
|
|
|
ret |= test_compress_stateless(in_buf, in_size);
|
|
ret |= test_compress(in_buf, in_size, NO_FLUSH);
|
|
ret |= test_compress(in_buf, in_size, SYNC_FLUSH);
|
|
ret |= test_flush(in_buf, in_size);
|
|
|
|
if (ret)
|
|
printf("Failed on file %s\n", file_name);
|
|
|
|
if (in_buf != NULL)
|
|
free(in_buf);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
int i = 0, ret = 0, fin_ret = 0;
|
|
uint32_t in_size = 0, offset = 0;
|
|
uint8_t *in_buf;
|
|
|
|
#ifndef VERBOSE
|
|
setbuf(stdout, NULL);
|
|
#endif
|
|
|
|
printf("Window Size: %d K\n", HIST_SIZE);
|
|
printf("Test Seed : %d\n", TEST_SEED);
|
|
printf("Randoms : %d\n", RANDOMS);
|
|
srand(TEST_SEED);
|
|
|
|
in_buf = malloc(IBUF_SIZE);
|
|
if (in_buf == NULL) {
|
|
fprintf(stderr, "Can't allocate in_buf memory\n");
|
|
return -1;
|
|
}
|
|
|
|
if (argc > 1) {
|
|
printf("igzip_rand_test files: ");
|
|
|
|
for (i = 1; i < argc; i++) {
|
|
ret |= test_compress_file(argv[i]);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
printf("................");
|
|
printf("%s\n", ret ? "Fail" : "Pass");
|
|
fin_ret |= ret;
|
|
}
|
|
|
|
printf("igzip_rand_test stateless: ");
|
|
|
|
ret = test_compress_stateless((uint8_t *) str1, sizeof(str1));
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret |= test_compress_stateless((uint8_t *) str2, sizeof(str2));
|
|
if (ret)
|
|
return ret;
|
|
|
|
for (i = 0; i < RANDOMS; i++) {
|
|
in_size = rand() % (IBUF_SIZE + 1);
|
|
offset = rand() % (IBUF_SIZE + 1 - in_size);
|
|
in_buf += offset;
|
|
|
|
create_rand_repeat_data(in_buf, in_size);
|
|
|
|
ret |= test_compress_stateless(in_buf, in_size);
|
|
|
|
in_buf -= offset;
|
|
|
|
if (i % (RANDOMS / 16) == 0)
|
|
printf(".");
|
|
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
fin_ret |= ret;
|
|
|
|
printf("%s\n", ret ? "Fail" : "Pass");
|
|
|
|
printf("igzip_rand_test NO_FLUSH: ");
|
|
|
|
ret = test_compress((uint8_t *) str1, sizeof(str1), NO_FLUSH);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret |= test_compress((uint8_t *) str2, sizeof(str2), NO_FLUSH);
|
|
if (ret)
|
|
return ret;
|
|
|
|
for (i = 0; i < RANDOMS; i++) {
|
|
in_size = rand() % (IBUF_SIZE + 1);
|
|
offset = rand() % (IBUF_SIZE + 1 - in_size);
|
|
in_buf += offset;
|
|
|
|
create_rand_repeat_data(in_buf, in_size);
|
|
|
|
ret |= test_compress(in_buf, in_size, NO_FLUSH);
|
|
|
|
in_buf -= offset;
|
|
|
|
if (i % (RANDOMS / 16) == 0)
|
|
printf(".");
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
fin_ret |= ret;
|
|
|
|
printf("%s\n", ret ? "Fail" : "Pass");
|
|
|
|
printf("igzip_rand_test SYNC_FLUSH: ");
|
|
|
|
ret = test_compress((uint8_t *) str1, sizeof(str1), SYNC_FLUSH);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret |= test_compress((uint8_t *) str2, sizeof(str2), SYNC_FLUSH);
|
|
if (ret)
|
|
return ret;
|
|
|
|
for (i = 0; i < RANDOMS; i++) {
|
|
in_size = rand() % (IBUF_SIZE + 1);
|
|
offset = rand() % (IBUF_SIZE + 1 - in_size);
|
|
in_buf += offset;
|
|
|
|
create_rand_repeat_data(in_buf, in_size);
|
|
|
|
ret |= test_compress(in_buf, in_size, SYNC_FLUSH);
|
|
|
|
in_buf -= offset;
|
|
|
|
if (i % (RANDOMS / 16) == 0)
|
|
printf(".");
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
fin_ret |= ret;
|
|
|
|
printf("%s\n", ret ? "Fail" : "Pass");
|
|
|
|
printf("igzip rand test finished: %s\n",
|
|
fin_ret ? "Some tests failed" : "All tests passed");
|
|
|
|
return fin_ret != IGZIP_COMP_OK;
|
|
}
|