/*
?*?An?example?demonstrating?recursive?directory?traversal.
?*
?*?Compile?this?file?with?Visual?Studio?2008?project?vs2008.sln?and?run
?*?the?produced?command?in?console?with?a?directory?name?argument.??For
?*?example?command
?*
?*?????find?“C:\Program?Files“
?*
?*?might?produce?a?listing?with?thousands?of?entries?such?as
?*
?*?????c:\Program?Files/7-Zip/7-zip.chm
?*?????c:\Program?Files/7-Zip/7-zip.dll
?*?????c:\Program?Files/7-Zip/7z.dll
?*?????c:\Program?Files/Adobe/Reader?10.0/Reader/logsession.dll
?*?????c:\Program?Files/Adobe/Reader?10.0/Reader/LogTransport2.exe
?*?????c:\Program?Files/Windows?NT/Accessories/wordpad.exe
?*?????c:\Program?Files/Windows?NT/Accessories/write.wpc
?*
?*?The?find?command?provided?by?this?file?is?only?an?example.??That?is
?*?the?command?does?not?provide?options?to?restrict?the?output?to?certain
?*?files?as?the?Linux?version?does.
?*/
#include?
#include?
#include?
#include?“dirent.h“

static?int?find_directory?（const?char?*dirname）;


int
main（
????int?argc?char?*argv[]）?
{
????int?i;
????int?ok;

????/*?For?each?directory?in?command?line?*/
????i?=?1;
????while?（i?????????ok?=?find_directory?（argv[i]）;
????????if?（!ok）?{
????????????exit?（EXIT_FAILURE）;
????????}
????????i++;
????}

????/*?List?current?working?directory?if?no?arguments?on?command?line?*/
????if?（argc?==?1）?{
????????find_directory?（“.“）;
????}
????return?EXIT_SUCCESS;
}

/*?Find?files?and?subdirectories?recursively?*/
static?int
find_directory（
????const?char?*dirname）
{
????DIR?*dir;
????char?buffer[PATH_MAX?+?2];
????char?*p?=?buffer;
????const?char?*src;
????char?*end?=?&buffer[PATH_MAX];
????int?ok;

????/*?Copy?directory?name?to?buffer?*/
????src?=?dirname;
????while?（p?????????*p++?=?*src++;
????}
????*p?=?‘\0‘;

????/*?Open?directory?stream?*/
????dir?=?opendir?（dirname）;
????if?（dir?!=?NULL）?{
????????struct?dirent?*ent;

????????/*?Print?all?files?and?directories?within?the?directory?*/
????????while?（（ent?=?readdir?（dir））?!=?NULL）?{
????????????char?*q?=?p;
????????????char?c;

????????????/*?Get?final?character?of?directory?name?*/
????????????if?（buffer?????????????????c?=?q[-1];
????????????}?else?{
????????????????c?=?‘:‘;
????????????}

????????????/*?Append?directory?separator?if?not?already?there?*/
????????????if?（c?!=?‘:‘??&&??c?!=?‘/‘??&&??c?!=?‘\\‘）?{
????????????????*q++?=?‘/‘;
????????????}

????????????/*?Append?file?name?*/
????????????src?=?ent->d_name;
????????????while?（q?????????????????*q++?=?*src++;
????????????}
????????????*q?=?‘\0‘;

????????????/*?Decide?what?to?do?with?the?directory?entry?*/
????????????switch?（ent->d_type）?{
????????????case?DT_LNK:
????????????case?DT_REG:
????????????????/*?Output?file?name?with?directory?*/
????????????????printf?（“%s\n“?buffer）;
????????????????break;

????????????case?DT_DIR:
????????????????/*?Scan?sub-directory?recursively?*/
????????????????if?（strcmp?（ent->d_name?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-04-07?14:18??tests\
?????目錄???????????0??2014-04-07?14:18??tests\1\
?????文件???????????0??2014-04-07?14:18??tests\1\file
?????目錄???????????0??2014-04-07?14:18??tests\1\dir\
?????文件?????????172??2014-04-07?14:18??tests\1\dir\readme.txt
?????目錄???????????0??2014-04-07?14:18??tests\2\
?????文件???????????0??2014-04-07?14:18??tests\2\Testfile-1.2.3.dat
?????文件??????????56??2014-04-07?14:18??tests\2\file.txt
?????文件????????7605??2014-04-07?14:18??tests\t-dirent.c
?????目錄???????????0??2014-04-07?14:18??examples\
?????文件????????4893??2014-04-07?14:18??examples\updatedb.c
?????文件????????5625??2014-04-07?14:18??examples\locate.c
?????文件????????2082??2014-04-07?14:18??examples\ls.c
?????文件????????3469??2014-04-07?14:18??examples\find.c
?????文件????????3502??2014-04-07?14:18??ChangeLog
?????目錄???????????0??2014-04-07?14:18??vs2008\
?????目錄???????????0??2014-04-07?14:18??vs2008\t-dirent\
?????文件????????3543??2014-04-07?14:18??vs2008\t-dirent\t-dirent.vcproj
?????目錄???????????0??2014-04-07?14:18??vs2008\locate\
?????文件????????3541??2014-04-07?14:18??vs2008\locate\locate.vcproj
?????目錄???????????0??2014-04-07?14:18??vs2008\updatedb\
?????文件????????3547??2014-04-07?14:18??vs2008\updatedb\updatedb.vcproj
?????文件????????2702??2014-04-07?14:18??vs2008\vs2008.sln
?????目錄???????????0??2014-04-07?14:18??vs2008\ls\
?????文件????????3529??2014-04-07?14:18??vs2008\ls\ls.vcproj
?????目錄???????????0??2014-04-07?14:18??vs2008\find\
?????文件????????3535??2014-04-07?14:18??vs2008\find\find.vcproj
?????目錄???????????0??2014-04-07?14:18??include\
?????文件???????22917??2014-04-07?14:18??include\dirent.h