CbC/CbC_gcc: zlib/examples/gun.c annotate

annotate zlib/examples/gun.c @ 111:04ced10e8804

gcc 7

author	kono
date	Fri, 27 Oct 2017 22:46:09 +0900
parents	ae3a4bfb450b
children

rev	line source
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1 /* gun.c -- simple gunzip to give an example of the use of inflateBack()
111 04ced10e8804 gcc 7 kono parents: 51 diff changeset	2 * Copyright (C) 2003, 2005, 2008, 2010, 2012 Mark Adler
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	3 * For conditions of distribution and use, see copyright notice in zlib.h
111 04ced10e8804 gcc 7 kono parents: 51 diff changeset	4 Version 1.7 12 August 2012 Mark Adler */
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	5
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	6 /* Version history:
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	7 1.0 16 Feb 2003 First version for testing of inflateBack()
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	8 1.1 21 Feb 2005 Decompress concatenated gzip streams
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	9 Remove use of "this" variable (C++ keyword)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	10 Fix return value for in()
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	11 Improve allocation failure checking
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	12 Add typecasting for void * structures
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	13 Add -h option for command version and usage
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	14 Add a bunch of comments
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	15 1.2 20 Mar 2005 Add Unix compress (LZW) decompression
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	16 Copy file attributes from input file to output file
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	17 1.3 12 Jun 2005 Add casts for error messages [Oberhumer]
111 04ced10e8804 gcc 7 kono parents: 51 diff changeset	18 1.4 8 Dec 2006 LZW decompression speed improvements
04ced10e8804 gcc 7 kono parents: 51 diff changeset	19 1.5 9 Feb 2008 Avoid warning in latest version of gcc
04ced10e8804 gcc 7 kono parents: 51 diff changeset	20 1.6 17 Jan 2010 Avoid signed/unsigned comparison warnings
04ced10e8804 gcc 7 kono parents: 51 diff changeset	21 1.7 12 Aug 2012 Update for z_const usage in zlib 1.2.8
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	22 */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	23
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	24 /*
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	25 gun [ -t ] [ name ... ]
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	26
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	27 decompresses the data in the named gzip files. If no arguments are given,
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	28 gun will decompress from stdin to stdout. The names must end in .gz, -gz,
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	29 .z, -z, _z, or .Z. The uncompressed data will be written to a file name
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	30 with the suffix stripped. On success, the original file is deleted. On
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	31 failure, the output file is deleted. For most failures, the command will
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	32 continue to process the remaining names on the command line. A memory
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	33 allocation failure will abort the command. If -t is specified, then the
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	34 listed files or stdin will be tested as gzip files for integrity (without
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	35 checking for a proper suffix), no output will be written, and no files
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	36 will be deleted.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	37
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	38 Like gzip, gun allows concatenated gzip streams and will decompress them,
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	39 writing all of the uncompressed data to the output. Unlike gzip, gun allows
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	40 an empty file on input, and will produce no error writing an empty output
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	41 file.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	42
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	43 gun will also decompress files made by Unix compress, which uses LZW
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	44 compression. These files are automatically detected by virtue of their
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	45 magic header bytes. Since the end of Unix compress stream is marked by the
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	46 end-of-file, they cannot be concantenated. If a Unix compress stream is
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	47 encountered in an input file, it is the last stream in that file.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	48
111 04ced10e8804 gcc 7 kono parents: 51 diff changeset	49 Like gunzip and uncompress, the file attributes of the original compressed
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	50 file are maintained in the final uncompressed file, to the extent that the
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	51 user permissions allow it.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	52
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	53 On my Mac OS X PowerPC G4, gun is almost twice as fast as gunzip (version
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	54 1.2.4) is on the same file, when gun is linked with zlib 1.2.2. Also the
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	55 LZW decompression provided by gun is about twice as fast as the standard
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	56 Unix uncompress command.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	57 */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	58
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	59 /* external functions and related types and constants */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	60 #include <stdio.h> /* fprintf() */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	61 #include <stdlib.h> /* malloc(), free() */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	62 #include <string.h> /* strerror(), strcmp(), strlen(), memcpy() */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	63 #include <errno.h> /* errno */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	64 #include <fcntl.h> /* open() */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	65 #include <unistd.h> /* read(), write(), close(), chown(), unlink() */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	66 #include <sys/types.h>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	67 #include <sys/stat.h> /* stat(), chmod() */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	68 #include <utime.h> /* utime() */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	69 #include "zlib.h" /* inflateBackInit(), inflateBack(), */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	70 /* inflateBackEnd(), crc32() */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	71
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	72 /* function declaration */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	73 #define local static
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	74
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	75 /* buffer constants */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	76 #define SIZE 32768U /* input and output buffer sizes */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	77 #define PIECE 16384 /* limits i/o chunks for 16-bit int case */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	78
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	79 /* structure for infback() to pass to input function in() -- it maintains the
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	80 input file and a buffer of size SIZE */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	81 struct ind {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	82 int infile;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	83 unsigned char *inbuf;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	84 };
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	85
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	86 /* Load input buffer, assumed to be empty, and return bytes loaded and a
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	87 pointer to them. read() is called until the buffer is full, or until it
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	88 returns end-of-file or error. Return 0 on error. */
111 04ced10e8804 gcc 7 kono parents: 51 diff changeset	89 local unsigned in(void in_desc, z_const unsigned char *buf)
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	90 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	91 int ret;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	92 unsigned len;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	93 unsigned char *next;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	94 struct ind me = (struct ind )in_desc;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	95
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	96 next = me->inbuf;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	97 *buf = next;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	98 len = 0;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	99 do {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	100 ret = PIECE;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	101 if ((unsigned)ret > SIZE - len)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	102 ret = (int)(SIZE - len);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	103 ret = (int)read(me->infile, next, ret);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	104 if (ret == -1) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	105 len = 0;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	106 break;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	107 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	108 next += ret;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	109 len += ret;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	110 } while (ret != 0 && len < SIZE);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	111 return len;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	112 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	113
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	114 /* structure for infback() to pass to output function out() -- it maintains the
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	115 output file, a running CRC-32 check on the output and the total number of
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	116 bytes output, both for checking against the gzip trailer. (The length in
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	117 the gzip trailer is stored modulo 2^32, so it's ok if a long is 32 bits and
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	118 the output is greater than 4 GB.) */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	119 struct outd {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	120 int outfile;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	121 int check; /* true if checking crc and total */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	122 unsigned long crc;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	123 unsigned long total;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	124 };
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	125
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	126 /* Write output buffer and update the CRC-32 and total bytes written. write()
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	127 is called until all of the output is written or an error is encountered.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	128 On success out() returns 0. For a write failure, out() returns 1. If the
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	129 output file descriptor is -1, then nothing is written.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	130 */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	131 local int out(void out_desc, unsigned char buf, unsigned len)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	132 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	133 int ret;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	134 struct outd me = (struct outd )out_desc;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	135
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	136 if (me->check) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	137 me->crc = crc32(me->crc, buf, len);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	138 me->total += len;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	139 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	140 if (me->outfile != -1)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	141 do {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	142 ret = PIECE;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	143 if ((unsigned)ret > len)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	144 ret = (int)len;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	145 ret = (int)write(me->outfile, buf, ret);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	146 if (ret == -1)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	147 return 1;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	148 buf += ret;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	149 len -= ret;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	150 } while (len != 0);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	151 return 0;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	152 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	153
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	154 /* next input byte macro for use inside lunpipe() and gunpipe() */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	155 #define NEXT() (have ? 0 : (have = in(indp, &next)), \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	156 last = have ? (have--, (int)(*next++)) : -1)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	157
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	158 /* memory for gunpipe() and lunpipe() --
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	159 the first 256 entries of prefix[] and suffix[] are never used, could
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	160 have offset the index, but it's faster to waste the memory */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	161 unsigned char inbuf[SIZE]; /* input buffer */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	162 unsigned char outbuf[SIZE]; /* output buffer */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	163 unsigned short prefix[65536]; /* index to LZW prefix string */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	164 unsigned char suffix[65536]; /* one-character LZW suffix */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	165 unsigned char match[65280 + 2]; /* buffer for reversed match or gzip
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	166 32K sliding window */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	167
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	168 /* throw out what's left in the current bits byte buffer (this is a vestigial
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	169 aspect of the compressed data format derived from an implementation that
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	170 made use of a special VAX machine instruction!) */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	171 #define FLUSHCODE() \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	172 do { \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	173 left = 0; \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	174 rem = 0; \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	175 if (chunk > have) { \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	176 chunk -= have; \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	177 have = 0; \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	178 if (NEXT() == -1) \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	179 break; \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	180 chunk--; \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	181 if (chunk > have) { \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	182 chunk = have = 0; \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	183 break; \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	184 } \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	185 } \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	186 have -= chunk; \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	187 next += chunk; \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	188 chunk = 0; \
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	189 } while (0)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	190
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	191 /* Decompress a compress (LZW) file from indp to outfile. The compress magic
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	192 header (two bytes) has already been read and verified. There are have bytes
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	193 of buffered input at next. strm is used for passing error information back
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	194 to gunpipe().
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	195
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	196 lunpipe() will return Z_OK on success, Z_BUF_ERROR for an unexpected end of
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	197 file, read error, or write error (a write error indicated by strm->next_in
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	198 not equal to Z_NULL), or Z_DATA_ERROR for invalid input.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	199 */
111 04ced10e8804 gcc 7 kono parents: 51 diff changeset	200 local int lunpipe(unsigned have, z_const unsigned char next, struct ind indp,
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	201 int outfile, z_stream *strm)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	202 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	203 int last; /* last byte read by NEXT(), or -1 if EOF */
111 04ced10e8804 gcc 7 kono parents: 51 diff changeset	204 unsigned chunk; /* bytes left in current chunk */
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	205 int left; /* bits left in rem */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	206 unsigned rem; /* unused bits from input */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	207 int bits; /* current bits per code */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	208 unsigned code; /* code, table traversal index */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	209 unsigned mask; /* mask for current bits codes */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	210 int max; /* maximum bits per code for this stream */
111 04ced10e8804 gcc 7 kono parents: 51 diff changeset	211 unsigned flags; /* compress flags, then block compress flag */
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	212 unsigned end; /* last valid entry in prefix/suffix tables */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	213 unsigned temp; /* current code */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	214 unsigned prev; /* previous code */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	215 unsigned final; /* last character written for previous code */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	216 unsigned stack; /* next position for reversed string */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	217 unsigned outcnt; /* bytes in output buffer */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	218 struct outd outd; /* output structure */
111 04ced10e8804 gcc 7 kono parents: 51 diff changeset	219 unsigned char *p;
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	220
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	221 /* set up output */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	222 outd.outfile = outfile;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	223 outd.check = 0;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	224
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	225 /* process remainder of compress header -- a flags byte */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	226 flags = NEXT();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	227 if (last == -1)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	228 return Z_BUF_ERROR;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	229 if (flags & 0x60) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	230 strm->msg = (char *)"unknown lzw flags set";
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	231 return Z_DATA_ERROR;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	232 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	233 max = flags & 0x1f;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	234 if (max < 9 \|\| max > 16) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	235 strm->msg = (char *)"lzw bits out of range";
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	236 return Z_DATA_ERROR;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	237 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	238 if (max == 9) /* 9 doesn't really mean 9 */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	239 max = 10;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	240 flags &= 0x80; /* true if block compress */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	241
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	242 /* clear table */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	243 bits = 9;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	244 mask = 0x1ff;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	245 end = flags ? 256 : 255;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	246
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	247 /* set up: get first 9-bit code, which is the first decompressed byte, but
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	248 don't create a table entry until the next code */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	249 if (NEXT() == -1) /* no compressed data is ok */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	250 return Z_OK;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	251 final = prev = (unsigned)last; /* low 8 bits of code */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	252 if (NEXT() == -1) /* missing a bit */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	253 return Z_BUF_ERROR;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	254 if (last & 1) { /* code must be < 256 */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	255 strm->msg = (char *)"invalid lzw code";
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	256 return Z_DATA_ERROR;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	257 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	258 rem = (unsigned)last >> 1; /* remaining 7 bits */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	259 left = 7;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	260 chunk = bits - 2; /* 7 bytes left in this chunk */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	261 outbuf[0] = (unsigned char)final; /* write first decompressed byte */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	262 outcnt = 1;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	263
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	264 /* decode codes */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	265 stack = 0;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	266 for (;;) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	267 /* if the table will be full after this, increment the code size */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	268 if (end >= mask && bits < max) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	269 FLUSHCODE();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	270 bits++;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	271 mask <<= 1;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	272 mask++;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	273 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	274
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	275 /* get a code of length bits */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	276 if (chunk == 0) /* decrement chunk modulo bits */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	277 chunk = bits;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	278 code = rem; /* low bits of code */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	279 if (NEXT() == -1) { /* EOF is end of compressed data */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	280 /* write remaining buffered output */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	281 if (outcnt && out(&outd, outbuf, outcnt)) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	282 strm->next_in = outbuf; /* signal write error */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	283 return Z_BUF_ERROR;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	284 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	285 return Z_OK;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	286 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	287 code += (unsigned)last << left; /* middle (or high) bits of code */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	288 left += 8;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	289 chunk--;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	290 if (bits > left) { /* need more bits */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	291 if (NEXT() == -1) /* can't end in middle of code */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	292 return Z_BUF_ERROR;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	293 code += (unsigned)last << left; /* high bits of code */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	294 left += 8;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	295 chunk--;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	296 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	297 code &= mask; /* mask to current code length */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	298 left -= bits; /* number of unused bits */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	299 rem = (unsigned)last >> (8 - left); /* unused bits from last byte */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	300
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	301 /* process clear code (256) */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	302 if (code == 256 && flags) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	303 FLUSHCODE();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	304 bits = 9; /* initialize bits and mask */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	305 mask = 0x1ff;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	306 end = 255; /* empty table */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	307 continue; /* get next code */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	308 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	309
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	310 /* special code to reuse last match */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	311 temp = code; /* save the current code */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	312 if (code > end) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	313 /* Be picky on the allowed code here, and make sure that the code
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	314 we drop through (prev) will be a valid index so that random
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	315 input does not cause an exception. The code != end + 1 check is
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	316 empirically derived, and not checked in the original uncompress
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	317 code. If this ever causes a problem, that check could be safely
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	318 removed. Leaving this check in greatly improves gun's ability
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	319 to detect random or corrupted input after a compress header.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	320 In any case, the prev > end check must be retained. */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	321 if (code != end + 1 \|\| prev > end) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	322 strm->msg = (char *)"invalid lzw code";
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	323 return Z_DATA_ERROR;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	324 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	325 match[stack++] = (unsigned char)final;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	326 code = prev;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	327 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	328
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	329 /* walk through linked list to generate output in reverse order */
111 04ced10e8804 gcc 7 kono parents: 51 diff changeset	330 p = match + stack;
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	331 while (code >= 256) {
111 04ced10e8804 gcc 7 kono parents: 51 diff changeset	332 *p++ = suffix[code];
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	333 code = prefix[code];
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	334 }
111 04ced10e8804 gcc 7 kono parents: 51 diff changeset	335 stack = p - match;
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	336 match[stack++] = (unsigned char)code;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	337 final = code;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	338
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	339 /* link new table entry */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	340 if (end < mask) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	341 end++;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	342 prefix[end] = (unsigned short)prev;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	343 suffix[end] = (unsigned char)final;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	344 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	345
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	346 /* set previous code for next iteration */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	347 prev = temp;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	348
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	349 /* write output in forward order */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	350 while (stack > SIZE - outcnt) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	351 while (outcnt < SIZE)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	352 outbuf[outcnt++] = match[--stack];
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	353 if (out(&outd, outbuf, outcnt)) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	354 strm->next_in = outbuf; /* signal write error */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	355 return Z_BUF_ERROR;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	356 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	357 outcnt = 0;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	358 }
111 04ced10e8804 gcc 7 kono parents: 51 diff changeset	359 p = match + stack;
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	360 do {
111 04ced10e8804 gcc 7 kono parents: 51 diff changeset	361 outbuf[outcnt++] = *--p;
04ced10e8804 gcc 7 kono parents: 51 diff changeset	362 } while (p > match);
04ced10e8804 gcc 7 kono parents: 51 diff changeset	363 stack = 0;
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	364
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	365 /* loop for next code with final and prev as the last match, rem and
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	366 left provide the first 0..7 bits of the next code, end is the last
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	367 valid table entry */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	368 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	369 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	370
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	371 /* Decompress a gzip file from infile to outfile. strm is assumed to have been
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	372 successfully initialized with inflateBackInit(). The input file may consist
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	373 of a series of gzip streams, in which case all of them will be decompressed
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	374 to the output file. If outfile is -1, then the gzip stream(s) integrity is
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	375 checked and nothing is written.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	376
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	377 The return value is a zlib error code: Z_MEM_ERROR if out of memory,
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	378 Z_DATA_ERROR if the header or the compressed data is invalid, or if the
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	379 trailer CRC-32 check or length doesn't match, Z_BUF_ERROR if the input ends
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	380 prematurely or a write error occurs, or Z_ERRNO if junk (not a another gzip
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	381 stream) follows a valid gzip stream.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	382 */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	383 local int gunpipe(z_stream *strm, int infile, int outfile)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	384 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	385 int ret, first, last;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	386 unsigned have, flags, len;
111 04ced10e8804 gcc 7 kono parents: 51 diff changeset	387 z_const unsigned char *next = NULL;
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	388 struct ind ind, *indp;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	389 struct outd outd;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	390
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	391 /* setup input buffer */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	392 ind.infile = infile;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	393 ind.inbuf = inbuf;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	394 indp = &ind;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	395
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	396 /* decompress concatenated gzip streams */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	397 have = 0; /* no input data read in yet */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	398 first = 1; /* looking for first gzip header */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	399 strm->next_in = Z_NULL; /* so Z_BUF_ERROR means EOF */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	400 for (;;) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	401 /* look for the two magic header bytes for a gzip stream */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	402 if (NEXT() == -1) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	403 ret = Z_OK;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	404 break; /* empty gzip stream is ok */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	405 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	406 if (last != 31 \|\| (NEXT() != 139 && last != 157)) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	407 strm->msg = (char *)"incorrect header check";
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	408 ret = first ? Z_DATA_ERROR : Z_ERRNO;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	409 break; /* not a gzip or compress header */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	410 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	411 first = 0; /* next non-header is junk */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	412
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	413 /* process a compress (LZW) file -- can't be concatenated after this */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	414 if (last == 157) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	415 ret = lunpipe(have, next, indp, outfile, strm);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	416 break;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	417 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	418
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	419 /* process remainder of gzip header */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	420 ret = Z_BUF_ERROR;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	421 if (NEXT() != 8) { /* only deflate method allowed */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	422 if (last == -1) break;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	423 strm->msg = (char *)"unknown compression method";
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	424 ret = Z_DATA_ERROR;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	425 break;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	426 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	427 flags = NEXT(); /* header flags */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	428 NEXT(); /* discard mod time, xflgs, os */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	429 NEXT();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	430 NEXT();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	431 NEXT();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	432 NEXT();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	433 NEXT();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	434 if (last == -1) break;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	435 if (flags & 0xe0) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	436 strm->msg = (char *)"unknown header flags set";
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	437 ret = Z_DATA_ERROR;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	438 break;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	439 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	440 if (flags & 4) { /* extra field */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	441 len = NEXT();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	442 len += (unsigned)(NEXT()) << 8;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	443 if (last == -1) break;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	444 while (len > have) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	445 len -= have;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	446 have = 0;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	447 if (NEXT() == -1) break;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	448 len--;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	449 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	450 if (last == -1) break;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	451 have -= len;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	452 next += len;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	453 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	454 if (flags & 8) /* file name */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	455 while (NEXT() != 0 && last != -1)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	456 ;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	457 if (flags & 16) /* comment */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	458 while (NEXT() != 0 && last != -1)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	459 ;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	460 if (flags & 2) { /* header crc */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	461 NEXT();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	462 NEXT();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	463 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	464 if (last == -1) break;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	465
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	466 /* set up output */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	467 outd.outfile = outfile;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	468 outd.check = 1;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	469 outd.crc = crc32(0L, Z_NULL, 0);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	470 outd.total = 0;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	471
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	472 /* decompress data to output */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	473 strm->next_in = next;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	474 strm->avail_in = have;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	475 ret = inflateBack(strm, in, indp, out, &outd);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	476 if (ret != Z_STREAM_END) break;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	477 next = strm->next_in;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	478 have = strm->avail_in;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	479 strm->next_in = Z_NULL; /* so Z_BUF_ERROR means EOF */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	480
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	481 /* check trailer */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	482 ret = Z_BUF_ERROR;
111 04ced10e8804 gcc 7 kono parents: 51 diff changeset	483 if (NEXT() != (int)(outd.crc & 0xff) \|\|
04ced10e8804 gcc 7 kono parents: 51 diff changeset	484 NEXT() != (int)((outd.crc >> 8) & 0xff) \|\|
04ced10e8804 gcc 7 kono parents: 51 diff changeset	485 NEXT() != (int)((outd.crc >> 16) & 0xff) \|\|
04ced10e8804 gcc 7 kono parents: 51 diff changeset	486 NEXT() != (int)((outd.crc >> 24) & 0xff)) {
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	487 /* crc error */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	488 if (last != -1) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	489 strm->msg = (char *)"incorrect data check";
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	490 ret = Z_DATA_ERROR;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	491 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	492 break;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	493 }
111 04ced10e8804 gcc 7 kono parents: 51 diff changeset	494 if (NEXT() != (int)(outd.total & 0xff) \|\|
04ced10e8804 gcc 7 kono parents: 51 diff changeset	495 NEXT() != (int)((outd.total >> 8) & 0xff) \|\|
04ced10e8804 gcc 7 kono parents: 51 diff changeset	496 NEXT() != (int)((outd.total >> 16) & 0xff) \|\|
04ced10e8804 gcc 7 kono parents: 51 diff changeset	497 NEXT() != (int)((outd.total >> 24) & 0xff)) {
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	498 /* length error */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	499 if (last != -1) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	500 strm->msg = (char *)"incorrect length check";
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	501 ret = Z_DATA_ERROR;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	502 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	503 break;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	504 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	505
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	506 /* go back and look for another gzip stream */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	507 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	508
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	509 /* clean up and return */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	510 return ret;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	511 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	512
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	513 /* Copy file attributes, from -> to, as best we can. This is best effort, so
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	514 no errors are reported. The mode bits, including suid, sgid, and the sticky
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	515 bit are copied (if allowed), the owner's user id and group id are copied
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	516 (again if allowed), and the access and modify times are copied. */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	517 local void copymeta(char from, char to)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	518 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	519 struct stat was;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	520 struct utimbuf when;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	521
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	522 /* get all of from's Unix meta data, return if not a regular file */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	523 if (stat(from, &was) != 0 \|\| (was.st_mode & S_IFMT) != S_IFREG)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	524 return;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	525
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	526 /* set to's mode bits, ignore errors */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	527 (void)chmod(to, was.st_mode & 07777);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	528
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	529 /* copy owner's user and group, ignore errors */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	530 (void)chown(to, was.st_uid, was.st_gid);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	531
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	532 /* copy access and modify times, ignore errors */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	533 when.actime = was.st_atime;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	534 when.modtime = was.st_mtime;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	535 (void)utime(to, &when);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	536 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	537
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	538 /* Decompress the file inname to the file outnname, of if test is true, just
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	539 decompress without writing and check the gzip trailer for integrity. If
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	540 inname is NULL or an empty string, read from stdin. If outname is NULL or
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	541 an empty string, write to stdout. strm is a pre-initialized inflateBack
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	542 structure. When appropriate, copy the file attributes from inname to
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	543 outname.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	544
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	545 gunzip() returns 1 if there is an out-of-memory error or an unexpected
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	546 return code from gunpipe(). Otherwise it returns 0.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	547 */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	548 local int gunzip(z_stream strm, char inname, char *outname, int test)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	549 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	550 int ret;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	551 int infile, outfile;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	552
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	553 /* open files */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	554 if (inname == NULL \|\| *inname == 0) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	555 inname = "-";
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	556 infile = 0; /* stdin */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	557 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	558 else {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	559 infile = open(inname, O_RDONLY, 0);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	560 if (infile == -1) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	561 fprintf(stderr, "gun cannot open %s\n", inname);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	562 return 0;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	563 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	564 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	565 if (test)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	566 outfile = -1;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	567 else if (outname == NULL \|\| *outname == 0) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	568 outname = "-";
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	569 outfile = 1; /* stdout */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	570 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	571 else {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	572 outfile = open(outname, O_CREAT \| O_TRUNC \| O_WRONLY, 0666);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	573 if (outfile == -1) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	574 close(infile);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	575 fprintf(stderr, "gun cannot create %s\n", outname);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	576 return 0;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	577 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	578 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	579 errno = 0;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	580
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	581 /* decompress */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	582 ret = gunpipe(strm, infile, outfile);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	583 if (outfile > 2) close(outfile);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	584 if (infile > 2) close(infile);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	585
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	586 /* interpret result */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	587 switch (ret) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	588 case Z_OK:
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	589 case Z_ERRNO:
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	590 if (infile > 2 && outfile > 2) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	591 copymeta(inname, outname); /* copy attributes */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	592 unlink(inname);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	593 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	594 if (ret == Z_ERRNO)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	595 fprintf(stderr, "gun warning: trailing garbage ignored in %s\n",
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	596 inname);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	597 break;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	598 case Z_DATA_ERROR:
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	599 if (outfile > 2) unlink(outname);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	600 fprintf(stderr, "gun data error on %s: %s\n", inname, strm->msg);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	601 break;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	602 case Z_MEM_ERROR:
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	603 if (outfile > 2) unlink(outname);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	604 fprintf(stderr, "gun out of memory error--aborting\n");
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	605 return 1;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	606 case Z_BUF_ERROR:
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	607 if (outfile > 2) unlink(outname);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	608 if (strm->next_in != Z_NULL) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	609 fprintf(stderr, "gun write error on %s: %s\n",
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	610 outname, strerror(errno));
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	611 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	612 else if (errno) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	613 fprintf(stderr, "gun read error on %s: %s\n",
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	614 inname, strerror(errno));
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	615 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	616 else {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	617 fprintf(stderr, "gun unexpected end of file on %s\n",
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	618 inname);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	619 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	620 break;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	621 default:
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	622 if (outfile > 2) unlink(outname);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	623 fprintf(stderr, "gun internal error--aborting\n");
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	624 return 1;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	625 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	626 return 0;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	627 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	628
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	629 /* Process the gun command line arguments. See the command syntax near the
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	630 beginning of this source file. */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	631 int main(int argc, char **argv)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	632 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	633 int ret, len, test;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	634 char *outname;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	635 unsigned char *window;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	636 z_stream strm;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	637
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	638 /* initialize inflateBack state for repeated use */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	639 window = match; /* reuse LZW match buffer */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	640 strm.zalloc = Z_NULL;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	641 strm.zfree = Z_NULL;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	642 strm.opaque = Z_NULL;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	643 ret = inflateBackInit(&strm, 15, window);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	644 if (ret != Z_OK) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	645 fprintf(stderr, "gun out of memory error--aborting\n");
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	646 return 1;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	647 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	648
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	649 /* decompress each file to the same name with the suffix removed */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	650 argc--;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	651 argv++;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	652 test = 0;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	653 if (argc && strcmp(*argv, "-h") == 0) {
111 04ced10e8804 gcc 7 kono parents: 51 diff changeset	654 fprintf(stderr, "gun 1.6 (17 Jan 2010)\n");
04ced10e8804 gcc 7 kono parents: 51 diff changeset	655 fprintf(stderr, "Copyright (C) 2003-2010 Mark Adler\n");
51 ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	656 fprintf(stderr, "usage: gun [-t] [file1.gz [file2.Z ...]]\n");
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	657 return 0;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	658 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	659 if (argc && strcmp(*argv, "-t") == 0) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	660 test = 1;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	661 argc--;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	662 argv++;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	663 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	664 if (argc)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	665 do {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	666 if (test)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	667 outname = NULL;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	668 else {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	669 len = (int)strlen(*argv);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	670 if (strcmp(*argv + len - 3, ".gz") == 0 \|\|
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	671 strcmp(*argv + len - 3, "-gz") == 0)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	672 len -= 3;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	673 else if (strcmp(*argv + len - 2, ".z") == 0 \|\|
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	674 strcmp(*argv + len - 2, "-z") == 0 \|\|
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	675 strcmp(*argv + len - 2, "_z") == 0 \|\|
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	676 strcmp(*argv + len - 2, ".Z") == 0)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	677 len -= 2;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	678 else {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	679 fprintf(stderr, "gun error: no gz type on %s--skipping\n",
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	680 *argv);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	681 continue;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	682 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	683 outname = malloc(len + 1);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	684 if (outname == NULL) {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	685 fprintf(stderr, "gun out of memory error--aborting\n");
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	686 ret = 1;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	687 break;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	688 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	689 memcpy(outname, *argv, len);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	690 outname[len] = 0;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	691 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	692 ret = gunzip(&strm, *argv, outname, test);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	693 if (outname != NULL) free(outname);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	694 if (ret) break;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	695 } while (argv++, --argc);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	696 else
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	697 ret = gunzip(&strm, NULL, NULL, test);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	698
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	699 /* clean up */
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	700 inflateBackEnd(&strm);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	701 return ret;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten. kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	702 }

Mercurial > hg > CbC > CbC_gcc

annotate zlib/examples/gun.c @ 111:04ced10e8804