///////////////////////////////////////////////////////////////////////////////
//
///?\file???????01_compress_easy.c
///?\brief??????Compress?from?stdin?to?stdout?in?multi-call?mode
///
///?Usage:??????./01_compress_easy?PRESET??OUTFILE
///
///?Example:????./01_compress_easy?6??foo.xz
//
//??Author:?????Lasse?Collin
//
//??This?file?has?been?put?into?the?public?domain.
//??You?can?do?whatever?you?want?with?this?file.
//
///////////////////////////////////////////////////////////////////////////////

#include?
#include?
#include?
#include?
#include?
#include?


static?void
show_usage_and_exit（const?char?*argv0）
{
	fprintf（stderr?“Usage:?%s?PRESET??OUTFILE\n“
			“PRESET?is?a?number?0-9?and?can?optionally?be?“
			“followed?by?‘e‘?to?indicate?extreme?preset\n“
			argv0）;
	exit（EXIT_FAILURE）;
}


static?uint32_t
get_preset（int?argc?char?**argv）
{
	//?One?argument?whose?first?char?must?be?0-9.
	if?（argc?!=?2?||?argv[1][0]??‘9‘）
		show_usage_and_exit（argv[0]）;

	//?Calculate?the?preste?level?0-9.
	uint32_t?preset?=?argv[1][0]?-?‘0‘;

	//?If?there?is?a?second?char?it?must?be?‘e‘.?It?will?set
	//?the?LZMA_PRESET_EXTREME?flag.
	if?（argv[1][1]?!=?‘\0‘）?{
		if?（argv[1][1]?!=?‘e‘?||?argv[1][2]?!=?‘\0‘）
			show_usage_and_exit（argv[0]）;

		preset?|=?LZMA_PRESET_EXTREME;
	}

	return?preset;
}


static?bool
init_encoder（lzma_stream?*strm?uint32_t?preset）
{
	//?Initialize?the?encoder?using?a?preset.?Set?the?integrity?to?check
	//?to?CRC64?which?is?the?default?in?the?xz?command?line?tool.?If
	//?the?.xz?file?needs?to?be?decompressed?with?XZ?embedded?use
	//?LZMA_CHECK_CRC32?instead.
	lzma_ret?ret?=?lzma_easy_encoder（strm?preset?LZMA_CHECK_CRC64）;

	//?Return?successfully?if?the?initialization?went?fine.
	if?（ret?==?LZMA_OK）
		return?true;

	//?Something?went?wrong.?The?possible?errors?are?documented?in
	//?lzma/container.h?（src/liblzma/api/lzma/container.h?in?the?source
	//?package?or?e.g.?/usr/include/lzma/container.h?depending?on?the
	//?install?prefix）.
	const?char?*msg;
	switch?（ret）?{
	case?LZMA_MEM_ERROR:
		msg?=?“Memory?allocation?failed“;
		break;

	case?LZMA_OPTIONS_ERROR:
		msg?=?“Specified?preset?is?not?supported“;
		break;

	case?LZMA_UNSUPPORTED_CHECK:
		msg?=?“Specified?integrity?check?is?not?supported“;
		break;

	default:
		//?This?is?most?likely?LZMA_PROG_ERROR?indicating?a?bug?in
		//?this?program?or?in?liblzma.?It?is?inconvenient?to?have?a
		//?separate?error?message?for?errors?that?should?be?impossible
		//?to?occur?but?knowing?the?error?code?is?important?for
		//?debugging.?That‘s?why?it?is?good?to?print?the?error?code
		//?at?least?when?there?is?no?good?error?message?to?show.
		msg?=?“Unknown?error?possibly?a?bug“;
		break;
	}

	fprintf（stderr?“Error?initializing?the?encoder:?%s?（error?code?%u）\n“
			msg?ret）;
	return?false;
}


static?bool
compress（lzma_stream?*strm?FILE?*infile?FILE?*outfile）
{
	//?This?will?be?LZMA_RUN?u

?屬性????????????大小?????日期????時(shí)間???名稱(chēng)
-----------?---------??----------?-----??----

?????文件??????24595??2015-02-19?00:53??cygwin64\bin\addftinfo.exe

????....S..????????21??2016-07-07?07:40??cygwin64\bin\apropos

?????文件??????28179??2016-04-13?02:58??cygwin64\bin\arch.exe

?????文件??????99869??2014-10-28?06:18??cygwin64\bin\ash.exe

????....S..????????19??2016-07-07?07:40??cygwin64\bin\awk

?????文件??????36371??2016-04-13?02:58??cygwin64\bin\base32.exe

?????文件??????36371??2016-04-13?02:58??cygwin64\bin\base64.exe

?????文件??????28179??2016-04-13?02:58??cygwin64\bin\basename.exe

?????文件?????701459??2015-09-25?04:58??cygwin64\bin\bash.exe

?????文件???????7186??2015-09-25?04:57??cygwin64\bin\bashbug

?????文件??????30739??2013-03-07?10:54??cygwin64\bin\bunzip2.exe

?????文件??????30739??2013-03-07?10:54??cygwin64\bin\bzcat.exe

????....S..????????17??2016-07-07?07:40??cygwin64\bin\bzcmp

?????文件???????2128??2013-03-07?10:54??cygwin64\bin\bzdiff

????....S..????????17??2016-07-07?07:40??cygwin64\bin\bzegrep

????....S..????????17??2016-07-07?07:40??cygwin64\bin\bzfgrep

?????文件???????1677??2013-03-07?10:54??cygwin64\bin\bzgrep

?????文件??????30739??2013-03-07?10:54??cygwin64\bin\bzip2.exe

?????文件??????12307??2013-03-07?10:54??cygwin64\bin\bzip2recover.exe

????....S..????????17??2016-07-07?07:40??cygwin64\bin\bzless

?????文件???????1259??2013-03-07?10:54??cygwin64\bin\bzmore

?????文件???????1644??2016-04-10?14:48??cygwin64\bin\ca-legacy

?????文件??????33811??2015-03-23?16:47??cygwin64\bin\cal.exe

????....S..????????18??2016-07-07?07:40??cygwin64\bin\captoinfo

?????文件??????49683??2016-04-13?02:58??cygwin64\bin\cat.exe

?????文件??????32787??2015-10-09?10:22??cygwin64\bin\catman.exe

?????文件??????52243??2016-04-13?02:58??cygwin64\bin\chcon.exe

?????文件??????58899??2016-04-13?02:58??cygwin64\bin\chgrp.exe

?????文件??????51219??2016-04-13?02:58??cygwin64\bin\chmod.exe

?????文件??????61459??2016-04-13?02:58??cygwin64\bin\chown.exe

............此處省略5441個(gè)文件信息