94 lines
2.0 KiB
C
94 lines
2.0 KiB
C
/*
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* Copyright (c) 2019 CTCaer
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <sys/stat.h>
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#include "lz.h"
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char filename[1024];
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int main(int argc, char *argv[])
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{
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int nbytes;
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int filename_len;
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struct stat statbuf;
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FILE *in_file, *out_file;
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if(stat(argv[1], &statbuf))
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goto error;
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if((in_file=fopen(argv[1], "rb")) == NULL)
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goto error;
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strcpy(filename, argv[1]);
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filename_len = strlen(filename);
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uint32_t in_size = statbuf.st_size;
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uint8_t *in_buf = (uint8_t *)malloc(in_size);
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uint32_t out_size = statbuf.st_size + 257;
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uint8_t *out_buf = (uint8_t *)malloc(out_size);
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if(!(in_buf && out_buf))
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goto error;
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if(fread(in_buf, 1, in_size, in_file) != in_size)
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goto error;
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fclose(in_file);
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uint32_t *work = (uint32_t*)malloc(sizeof(uint32_t) * (in_size + 65536));
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for (int i = 0; i < 2; i++)
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{
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uint32_t in_size_tmp;
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if (!i)
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{
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in_size_tmp = in_size / 2;
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strcpy(filename + filename_len, ".00.lz");
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}
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else
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{
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in_size_tmp = in_size - (in_size / 2);
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strcpy(filename + filename_len, ".01.lz");
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}
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if (work)
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nbytes = LZ_CompressFast(in_buf + (in_size / 2) * i, out_buf, in_size_tmp, work);
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else
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goto error;
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if (nbytes > out_size)
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goto error;
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if((out_file = fopen(filename,"wb")) == NULL)
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goto error;
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if (fwrite(out_buf, 1, nbytes, out_file) != nbytes)
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goto error;
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fclose(out_file);
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}
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return 0;
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error:
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fprintf(stderr, "Failed to compress: %s\n", argv[1]);
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exit(1);
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}
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