mcmartin
a82bcf1338
git-svn-id: svn://svn.code.sf.net/p/sc2/code/trunk@2661 8092fc87-c524-0410-9efc-e669fe64eaf9
95 lines
2.8 KiB
C
95 lines
2.8 KiB
C
/*************************************************************************
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LZ packer/unpacker
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Code is mostly from lzhuf.c found at
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http://www.cs.umu.se/~isak/Snippets
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***********Original Comment***********************************************
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lzhuf.c
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written by Haruyasu Yoshizaki 1988/11/20
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some minor changes 1989/04/06
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comments translated by Haruhiko Okumura 1989/04/07
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getbit and getbyte modified 1990/03/23 by Paul Edwards
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so that they would work on machines where integers are
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not necessarily 16 bits (although ANSI guarantees a
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minimum of 16). This program has compiled and run with
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no errors under Turbo C 2.0, Power C, and SAS/C 4.5
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(running on an IBM mainframe under MVS/XA 2.2). Could
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people please use YYYY/MM/DD date format so that everyone
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in the world can know what format the date is in?
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external storage of filesize changed 1990/04/18 by Paul Edwards to
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Intel's "little endian" rather than a machine-dependant style so
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that files produced on one machine with lzhuf can be decoded on
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any other. "little endian" style was chosen since lzhuf
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originated on PC's, and therefore they should dictate the
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standard.
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initialization of something predicting spaces changed 1990/04/22 by
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Paul Edwards so that when the compressed file is taken somewhere
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else, it will decode properly, without changing ascii spaces to
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ebcdic spaces. This was done by changing the ' ' (space literal)
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to 0x20 (which is the far most likely character to occur, if you
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don't know what environment it will be running on.
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*************************************************************************/
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//#include <sys/types.h>
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//#include <sys/stat.h>
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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 <stdarg.h>
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#include <string.h>
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#include <ctype.h>
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//#include <errno.h>
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#include <malloc.h>
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#if defined(WIN32) && defined(_MSC_VER)
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# define inline __inline
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#elif defined(__GNUC__)
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# define inline __inline__
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#endif
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#include "lzhuf.h"
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int main(int argc, char *argv[])
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{
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char* s;
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lzhuf_session_t sess;
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FILE* infile;
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FILE* outfile;
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int ret;
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if (argc != 4)
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{
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fprintf(stderr,
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"'lz e file1 file2' encodes file1 into file2.\n"
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"'lz d file2 file1' decodes file2 into file1.\n");
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return EXIT_FAILURE;
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}
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if ((s = argv[1], s[1] || strchr("DEde", s[0]) == NULL)
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|| (s = argv[2], (infile = fopen(s, "rb")) == NULL)
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|| (s = argv[3], (outfile = fopen(s, "wb")) == NULL))
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{
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fprintf(stderr, "??? %s\n", s);
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return EXIT_FAILURE;
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}
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lzhuf_startSession(&sess, LZHUF_STDIO);
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sess.infile = infile;
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sess.outfile = outfile;
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if (toupper(*argv[1]) == 'E')
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ret = lzhuf_encode(&sess);
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else
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ret = lzhuf_decode(&sess);
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lzhuf_endSession(&sess);
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if (ret != 0)
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return EXIT_FAILURE;
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fclose(infile);
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fclose(outfile);
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return EXIT_SUCCESS;
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}
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