ulz77,zooxyt

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Something goes wrong when Decompressing the data

Something goes wrong when Decompressing the data。 Here is the code:
int main(int argc, const char *argv[])
{
int ret = 0;
int mode = 0;
/int method = ULZ77C_METHOD_STREAM;/
int method = ULZ77C_METHOD_FILE;
char *src_file = NULL;
char dst_file = NULL;
size_t bs = 1024; / 1M /
srand((unsigned int)time(NULL));
printf("TestData:\n ");
for(int i=0;i<10242;i++)
{
TestData[i] = rand()%256;
printf("%02X ",TestData[i]);
}
printf("\n");

unsigned int block_size;
unsigned char *src = NULL;
unsigned char *dst = NULL;
size_t dst_len;

int originpos = 0;
for(int i =0 ;i <2;i++)
{
    ret = ulz77_encode_data(&dst, &dst_len, TestData, 1024, ULZ77_TYPE_COMPRESSION);
    printf("RecoverLen:%d\n",dst_len);
#if 0
    unsigned char * testttttt = (unsigned char *)&dst_len;
    EncodedData[originpos] =  testttttt[0];
    originpos++;
    EncodedData[originpos] =  testttttt[1];
    originpos++;
    EncodedData[originpos] =  testttttt[2];
    originpos++;
    EncodedData[originpos] =  testttttt[3];
    originpos++;
#endif
    if (ret == 0)
    {
        for(int index = 0;index < dst_len; index++)
        {
            EncodedData[originpos+index] = dst[index];
        }
        originpos+=dst_len;
    }
    free(dst);
}
printf("RecoverData:%d\n",originpos);

printf("RecoverData:\n");
int recoverpos = 0;
int recoverlen = 0;
while(originpos > 0)
{
    int len = originpos;
    ret = ulz77_encode_data(&dst, &dst_len, &EncodedData[recoverpos], len, ULZ77_TYPE_DECOMPRESSION);
    if (ret == 0)
    {
        for(int i=0;i<dst_len;i++)
        {
            printf("%02X ",dst[i]);
        }
    }
    recoverlen += dst_len;
    originpos -= dst_len;
    recoverpos += len + 4;
    free(dst);
}
printf("\n RecoverData:%d\n ",recoverlen);

}

Decompress Data is not correct.

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