I'm learning to program under android, and I'm having a little problem. The code of the program I attached to the file can read. The problem is that it does not correctly display the resolution of the files through the sperm function. This is what this program will output: ======= rwxrwx--x . rwxr-x--x .. rwxr-x--x lost+found rwxr-x--x bugreports rwxr-x--x .layout_version rwxr-x--x .tp.settings rwxr-x--x BT_Addr rwxr-x--x piggybank rwxr-x--x server rwxr-x--x fusemap rwxrwx--- media rwxrwx--- lp rwxrwx--- acdapi rwxrwx--- tombstones rwxrwx--- dontpanic rwxrwx--- data rwxrwx--- system rwxrwx--- drm rwxrwx--- misc rwxrwx--- app-asec rwxrwx--- agps_supl rwxrwx--- nvram rwxrwx--- amit rwxrwx--- sec rwxrwx--- mdl rwxrwx--- ssh rwxrwx--- user rwxrwx--- property rwxrwx--- app rwxrwx--- resource-cache rwxrwx--- local rwxrwx--- @btmtk rwxrwx--- anr rwxrwx--- systest rwxrwx--- app-lib rwxrwx--- security rwxrwx--- nfc_socket rwxrwx--- backup rwxrwx--- dalvik-cache rwxrwx--- app-private rwxrwx--- x ======= And now compare this with the output of the original program from coreutils: ====== drwxrwx--- bluetooth net_bt 2017-06-23 02:01 @btmtk -rw-rw-r-- nvram nvram 64 2017-06-30 00:40 BT_Addr drwxrwx--- system system 2017-03-23 13:44 acdapi drwxrwx--x gps system 2017-06-30 00:40 agps_supl drwxrwx--- system system 2017-03-23 13:44 amit drwxrwxr-x system system 2017-06-30 00:40 anr drwxrwx--x system system 2017-06-30 00:40 app drwx------ root root 2017-03-23 13:44 app-asec drwxrwx--x system system 2017-06-29 16:19 app-lib drwxrwx--x system system 2017-03-23 13:44 app-private drwx------ system system 2017-06-23 02:01 backup lrwxrwxrwx root root 2017-06-23 02:01 bugreports -> /data/data/com.android.shell/files/bugreports drwxrwx--x system system 2017-06-30 00:16 dalvik-cache drwxrwx--x system system 2017-06-30 00:16 data drwxr-x--- root log 2017-03-23 13:44 dontpanic drwxr-xr-x drm system 2017-06-23 02:01 drm -rwxr-xr-x root root 13516 2017-06-26 20:13 fusemap drwxr-x--x root root 2017-06-27 22:07 local drwxrwx--- root root 1970-01-01 03:00 lost+found drwxrwxrwx root root 2017-06-23 02:01 lp drwxrwxr-x shell shell 2017-06-23 02:02 mdl drwxrwx--- media_rw media_rw 2017-06-26 20:13 media drwxrwx--t system misc 2017-06-29 22:03 misc drwxrwx--x nfc radio 2017-03-23 13:44 nfc_socket drwxrws--- root nvram 2017-06-27 17:18 nvram -rw------- system system 4194304 2017-06-30 00:41 piggybank drwx------ root root 2017-06-30 17:31 property drwxrwx--x system system 2017-03-23 13:44 resource-cache drwxr-x--- nvram system 2017-06-30 00:40 sec drwx--x--x system system 2017-03-23 13:44 security srwxrw---- system system 2017-06-29 22:03 server drwxr-x--- root shell 2017-06-23 02:01 ssh drwxrwxr-x system system 2017-06-30 17:13 system drwx------ system system 2017-06-23 02:01 systest drwx------ system system 2017-06-26 19:04 tombstones drwx--x--x system system 2017-06-23 02:02 user d---rwxrwx root root 2017-06-23 16:59 x ===== The conclusions are completely different and my program has everything wrong. Help me!!!
What did you specify as directory? I guess it's not the current directory, which is the only one that your program will work correctly with. You're calling stat on only file names without path. If you had checked the return value of stat() for errors, you would have noticed that it will report "file not found" errors as soon as you try to apply you program to anything but the current directory.
Rolf Magnus wrote: > What did you specify as directory? I guess it's not the current > directory, which is the only one that your program will work correctly > with. > You're calling stat on only file names without path. If you had checked > the return value of stat() for errors, you would have noticed that it > will report "file not found" errors as soon as you try to apply you > program to anything but the current directory. No, this is all right. I started the command ./ls system ===== rwxrwx--x . rwxr-x--x .. rwxr-x--x lost+found rwxr-x--x app rwxr-x--x appjar rwxr-x--x bin rwxr-x--x build.prop rwxrwx--- data rwxrwx--- db rwxrwx--- dolby rwxrwx--- etc rwxrwx--- fonts rwxrwx--- framework rwxrwx--- lib rwxrwx--- media rwxrwx--- mobile_toolkit rwxrwx--- priv-app rwxrwx--- res rwxrwx--- tts rwxrwx--- usr rwxrwx--- vendor rwxrwx--- xbin ====== As you can see everything works great. And here's another example of starting a command ./ls /system/priv-app /system/app ======= rwxrwx--x . rwxr-x--x .. rwxr-x--x BackupRestoreConfirmation.apk rwxr-x--x CDS_INFO.apk rwxr-x--x Calendar.apk rwxr-x--x CalendarProvider.apk rwxr-x--x ConfigUpdater.apk rwxr-x--x Contacts.apk rwxr-x--x ContactsProvider.apk rwxr-x--x DefaultContainerService.apk rwxr-x--x Dialer.apk rwxr-x--x DownloadProvider.apk rwxr-x--x ExternalStorageProvider.apk rwxr-x--x FusedLocation.apk rwxr-x--x GmsCore.apk rwxr-x--x GoogleBackupTransport.apk rwxr-x--x GoogleFeedback.apk rwxr-x--x GoogleLoginService.apk rwxr-x--x GoogleOneTimeInitializer.apk rwxr-x--x GooglePartnerSetup.apk rwxr-x--x GoogleServicesFramework.apk rwxr-x--x InputDevices.apk rwxr-x--x Keyguard.apk rwxr-x--x NovaLauncher.apk rwxr-x--x MediaProvider.apk rwxr-x--x Mms.apk rwxr-x--x PrivacyProtectionLock.apk rwxr-x--x ProxyHandler.apk rwxr-x--x Settings.apk rwxr-x--x SettingsProvider.apk rwxr-x--x SetupWizard.apk rwxr-x--x SharedStorageBackup.apk rwxr-x--x SystemUI.apk rwxr-x--x TeleService.apk rwxr-x--x VpnDialogs.apk rwxr-x--x WallpaperCropper.apk rwxrwx--x . rwxr-x--x .. rwxr-x--x AppHide.apk rwxr-x--x ApplicationsProvider.apk rwxr-x--x BatteryWarning.apk rwxr-x--x Bluetooth.apk rwxr-x--x BrowserProviderProxy.apk rwxr-x--x Superuser.apk rwxr-x--x CalendarImporter.apk rwxr-x--x CellConnService.apk rwxr-x--x CertInstaller.apk rwxr-x--x CountryList.apk rwxr-x--x DeskClock.apk rwxr-x--x DocumentsUI.apk rwxr-x--x DownloadProviderUi.apk rwxr-x--x DrmProvider.apk rwxr-x--x EngineerMode.apk rwxr-x--x EngineerModeSim.apk rwxr-x--x FMRadioHQ.apk rwxr-x--x FWUpgrade.apk rwxr-x--x FWUpgradeProvider.apk rwxr-x--x FaceLock.apk rwxr-x--x FactoryKitTest.apk rwxr-x--x FactoryServiceHQ.apk rwxr-x--x FlashLight.apk rwxr-x--x Gallery2.apk rwxr-x--x GoogleCalendarSyncAdapter.apk rwxr-x--x GoogleContactsSyncAdapter.apk rwxr-x--x GoogleTTS.apk rwxr-x--x HTMLViewer.apk rwxr-x--x KeyChain.apk rwxr-x--x LocationEM.apk rwxr-x--x MTKAndroidSuiteDaemon.apk rwxr-x--x MTKLogger.apk rwxr-x--x MTKThermalManager.apk rwxr-x--x MtkBt.apk rwxr-x--x MusicFX.apk rwxr-x--x Omacp.apk rwxr-x--x PacProcessor.apk rwxr-x--x PackageInstaller.apk rwxr-x--x PartnerBookmarksProvider.apk rwxr-x--x PermissionControl.apk rwxr-x--x PhaseBeam.apk rwxr-x--x RuntimeTest.apk rwxr-x--x SchedulePowerOnOff.apk rwxr-x--x Stk1.apk rwxr-x--x StkSelection.apk rwxr-x--x SystemUpdate.apk rwxr-x--x SystemUpdateAssistant.apk rwxr-x--x TelephonyProvider.apk rwxr-x--x UserDictionaryProvider.apk rwxr-x--x VoiceCommand.apk rwxr-x--x VoiceUnlock.apk rwxr-x--x YGPS.apk ====== Rights are not shown correctly !!!!
Kirkina A. wrote: > Rolf Magnus wrote: >> What did you specify as directory? I guess it's not the current >> directory, which is the only one that your program will work correctly >> with. >> You're calling stat on only file names without path. If you had checked >> the return value of stat() for errors, you would have noticed that it >> will report "file not found" errors as soon as you try to apply you >> program to anything but the current directory. > > No, this is all right. It isn't. > I started the command ./ls /system/ > ===== > rwxrwx--x . > rwxr-x--x .. > rwxr-x--x lost+found > rwxr-x--x app > rwxr-x--x appjar > rwxr-x--x bin > rwxr-x--x build.prop > rwxrwx--- data > rwxrwx--- db > rwxrwx--- dolby > rwxrwx--- etc > rwxrwx--- fonts > rwxrwx--- framework > rwxrwx--- lib > rwxrwx--- media > rwxrwx--- mobile_toolkit > rwxrwx--- priv-app > rwxrwx--- res > rwxrwx--- tts > rwxrwx--- usr > rwxrwx--- vendor > rwxrwx--- xbin > ====== > As you can see everything works great. It just seems to, but it doesn't. > Rights are not shown correctly !!!! The reason is still the same. Change your line that calls stat into:
1 | int ret = stat(ent->d_name, &statbuf); //получаем информацию |
2 | if (ret < 0) |
3 | {
|
4 | perror(ent->d_name); |
5 | }
|
and see what happens. Also, try
1 | cd /system/priv-app |
2 | <mydir>/ls . |
replacing <mydir> with the directory where your ls is installed.
Rolf Magnus wrote: > Kirkina A. wrote: > Rolf Magnus wrote: > What did you specify as directory? I guess it's not the current > directory, which is the only one that your program will work correctly > with. > You're calling stat on only file names without path. If you had checked > the return value of stat() for errors, you would have noticed that it > will report "file not found" errors as soon as you try to apply you > program to anything but the current directory. > > No, this is all right. > > It isn't. > > I started the command ./ls system > ===== > rwxrwx--x . > rwxr-x--x .. > rwxr-x--x lost+found > rwxr-x--x app > rwxr-x--x appjar > rwxr-x--x bin > rwxr-x--x build.prop > rwxrwx--- data > rwxrwx--- db > rwxrwx--- dolby > rwxrwx--- etc > rwxrwx--- fonts > rwxrwx--- framework > rwxrwx--- lib > rwxrwx--- media > rwxrwx--- mobile_toolkit > rwxrwx--- priv-app > rwxrwx--- res > rwxrwx--- tts > rwxrwx--- usr > rwxrwx--- vendor > rwxrwx--- xbin > ====== > As you can see everything works great. > > It just seems to, but it doesn't. > > Rights are not shown correctly !!!! > > The reason is still the same. > Change your line that calls stat into: int ret = stat(ent->d_name, > &statbuf); //получаем информацию > if (ret < 0) > { > perror(ent->d_name); > } > > and see what happens. > > Also, trycd /system/priv-app > <mydir>/ls . > > replacing <mydir> with the directory where your ls is installed. Yes, I understood the error. I went to /bin and ran the command /mnt/programs/ls ======= rwxr-xr-x znew rwxr-xr-x zfgrep rwxr-xr-x vdir rwxr-xr-x lesspipe rwxr-xr-x cat rwxr-xr-x zforce rwxr-xr-x run-parts rwxr-xr-x zegrep rwxr-xr-x nc rwxr-xr-x mktemp rwxr-xr-x dash rwxr-xr-x netcat rwxr-xr-x rm rwxr-xr-x systemd-escape rwxr-xr-x tar rwxr-xr-x sh rwxr-xr-x .. rwxr-xr-x hostname rwxr-xr-x systemd rwxr-xr-x lessfile rwxr-xr-x echo rwxr-xr-x zless rwxr-xr-x ps rwxr-xr-x cpio rwxr-xr-x rmdir rwxr-xr-x unchroot rwxr-xr-x pidof rwxr-xr-x login rwxr-xr-x kill rwxr-xr-x domainname rwxr-xr-x systemd-tty-ask-password-agent rwxr-xr-x mkdir rwxr-xr-x dmesg rwxr-xr-x sed rwxr-xr-x nc.traditional rwxr-xr-x dir rwxr-xr-x egrep rwxr-xr-x nano rwxr-xr-x cp rwxr-xr-x zgrep rwxr-xr-x sleep rwxr-xr-x tailf rwxr-xr-x systemd-machine-id-setup rwxr-xr-x ss rwxr-xr-x fgrep rwxr-xr-x machinectl rwxr-xr-x rnano rwxr-xr-x lesskey rwxr-xr-x false rwxr-xr-x mount rwxr-xr-x chacl rwxr-xr-x netstat rwxr-xr-x dnsdomainname rwxr-xr-x dd rwxr-xr-x uncompress rwxr-xr-x touch rwxr-xr-x systemd-ask-password rwxr-xr-x readlink rwxr-xr-x chown rwxr-xr-x which rwxr-xr-x lessecho rwxr-xr-x ls rwxr-xr-x grep rwxr-xr-x chgrp rwxr-xr-x kmod rwxr-xr-x mt rwxr-xr-x uname rwxr-xr-x systemd-tmpfiles rwxr-xr-x pwd rwxr-xr-x mknod rwxr-xr-x ln rwxr-xr-x . rwxr-xr-x mountpoint rwxr-xr-x ping rwxr-xr-x zdiff rwxr-xr-x mt-gnu rwxr-xr-x setfacl rwxr-xr-x lsblk rwxr-xr-x umount rwxr-xr-x journalctl rwxr-xr-x ypdomainname rwxr-xr-x loginctl rwxr-xr-x true rwxr-xr-x gzip rwxr-xr-x systemctl rwxr-xr-x chmod rwxr-xr-x ping6 rwxr-xr-x ip rwxr-xr-x wdctl rwxr-xr-x nisdomainname rwxr-xr-x su rwxr-xr-x mv rwxr-xr-x udevadm rwxr-xr-x stty rwxr-xr-x gzexe rwxr-xr-x systemd-inhibit rwxr-xr-x tempfile rwxr-xr-x date rwxr-xr-x lsmod rwxr-xr-x df rwxr-xr-x systemd-notify rwxr-xr-x bash rwxr-xr-x rbash rwxr-xr-x gunzip rwxr-xr-x zcat rwxr-xr-x zmore rwxr-xr-x more rwxr-xr-x findmnt rwxr-xr-x less rwxr-xr-x sh.distrib rwxr-xr-x zcmp rwxr-xr-x sync rwxr-xr-x getfacl ===== But the result of the ls system command ls ===== total 5504 -rwxr-xr-x. 1 root root 679084 Nov 13 2014 bash -rwxr-xr-x. 1 root root 30464 Mar 14 2015 cat -rwxr-xr-x. 1 root root 9728 Sep 8 2014 chacl -rwxr-xr-x. 1 root root 38644 Mar 14 2015 chgrp -rwxr-xr-x. 1 root root 34520 Mar 14 2015 chmod -rwxr-xr-x. 1 root root 38652 Mar 14 2015 chown -rwxr-xr-x. 1 root root 92216 Mar 14 2015 cp -rwxr-xr-x. 1 root root 89704 Feb 14 2016 cpio -rwxr-xr-x. 1 root root 75420 Nov 8 2014 dash -rwxr-xr-x. 1 root root 42728 Mar 14 2015 date -rwxr-xr-x. 1 root root 42788 Mar 14 2015 dd -rwxr-xr-x. 1 root root 59548 Mar 14 2015 df -rwxr-xr-x. 1 root root 79984 Mar 14 2015 dir -rwxr-xr-x. 1 root root 38812 Mar 30 2015 dmesg lrwxrwxrwx. 1 root root 8 Jul 3 00:04 dnsdomainname -> hostname lrwxrwxrwx. 1 root root 8 Jul 3 00:04 domainname -> hostname -rwxr-xr-x. 1 root root 22160 Mar 14 2015 echo -rwxr-xr-x. 1 root root 29 Feb 14 2015 egrep -rwxr-xr-x. 1 root root 18060 Mar 14 2015 false -rwxr-xr-x. 1 root root 29 Feb 14 2015 fgrep -rwxr-xr-x. 1 root root 35472 Mar 30 2015 findmnt -rwxr-xr-x. 1 root root 18352 Sep 8 2014 getfacl -rwxr-xr-x. 1 root root 128552 Feb 14 2015 grep -rwxr-xr-x. 2 root root 2301 Sep 27 2014 gunzip -rwxr-xr-x. 1 root root 5927 Sep 27 2014 gzexe -rwxr-xr-x. 1 root root 63992 Sep 27 2014 gzip -rwxr-xr-x. 1 root root 9768 Nov 3 2013 hostname -rwxr-xr-x. 1 root root 223048 Sep 5 2014 ip -rwxr-xr-x. 1 root root 161428 Mar 14 2016 journalctl -rwxr-xr-x. 1 root root 18028 Mar 7 2015 kill -rwxr-xr-x. 1 root root 104384 Sep 27 2014 kmod -rwxr-xr-x. 1 root root 116292 Sep 8 2014 less -rwxr-xr-x. 1 root root 9588 Sep 8 2014 lessecho lrwxrwxrwx. 1 root root 8 Jul 3 00:04 lessfile -> lesspipe -rwxr-xr-x. 1 root root 14352 Sep 8 2014 lesskey -rwxr-xr-x. 1 root root 7758 Sep 8 2014 lesspipe -rwxr-xr-x. 1 root root 34548 Mar 14 2015 ln -rwxr-xr-x. 1 root root 34688 Nov 20 2015 login -rwxr-xr-x. 1 root root 202476 Mar 14 2016 loginctl -rwxr-xr-x. 1 root root 79984 Mar 14 2015 ls -rwxr-xr-x. 1 root root 42936 Mar 30 2015 lsblk lrwxrwxrwx. 1 root root 4 Jul 3 00:04 lsmod -> kmod -rwxr-xr-x. 1 root root 186092 Mar 14 2016 machinectl -rwxr-xr-x. 1 root root 46936 Mar 14 2015 mkdir -rwxr-xr-x. 1 root root 38712 Mar 14 2015 mknod -rwxr-xr-x. 1 root root 26328 Mar 14 2015 mktemp -rwxr-xr-x. 1 root root 30460 Mar 30 2015 more -rwsr-xr-x. 1 root root 30664 Mar 30 2015 mount -rwxr-xr-x. 1 root root 5564 Apr 6 2015 mountpoint lrwxrwxrwx. 1 root root 20 Jul 3 00:04 mt -> /etc/alternatives/mt -rwxr-xr-x. 1 root root 42992 Feb 14 2016 mt-gnu -rwxr-xr-x. 1 root root 79900 Mar 14 2015 mv -rwxr-xr-x. 1 root root 125044 Jul 16 2014 nano lrwxrwxrwx. 1 root root 20 Jul 3 00:04 nc -> /etc/alternatives/nc -rwxr-xr-x. 1 root root 18092 Sep 11 2014 nc.traditional lrwxrwxrwx. 1 root root 24 Jul 3 00:04 netcat -> /etc/alternatives/netcat -rwxr-xr-x. 1 root root 84680 Nov 8 2014 netstat lrwxrwxrwx. 1 root root 8 Jul 3 00:04 nisdomainname -> hostname lrwxrwxrwx. 1 root root 14 Jul 3 00:04 pidof -> /sbin/killall5 -rwxr-xr-x. 1 root root 34752 Nov 8 2014 ping -rwxr-xr-x. 1 root root 35056 Nov 8 2014 ping6 -rwxr-xr-x. 1 root root 67492 Mar 7 2015 ps -rwxr-xr-x. 1 root root 22208 Mar 14 2015 pwd lrwxrwxrwx. 1 root root 4 Jul 3 00:04 rbash -> bash -rwxr-xr-x. 1 root root 26284 Mar 14 2015 readlink -rwxr-xr-x. 1 root root 38640 Mar 14 2015 rm -rwxr-xr-x. 1 root root 26288 Mar 14 2015 rmdir lrwxrwxrwx. 1 root root 4 Jul 3 00:04 rnano -> nano -rwxr-xr-x. 1 root root 14112 Nov 8 2014 run-parts -rwxr-xr-x. 1 root root 47308 Nov 8 2014 sed -rwxr-xr-x. 1 root root 22552 Sep 8 2014 setfacl lrwxrwxrwx. 1 root root 4 Jul 3 00:04 sh -> dash lrwxrwxrwx. 1 root root 4 Jul 3 00:04 sh.distrib -> dash -rwxr-xr-x. 1 root root 18076 Mar 14 2015 sleep -rwxr-xr-x. 1 root root 51800 Sep 5 2014 ss -rwxr-xr-x. 1 root root 46796 Mar 14 2015 stty -rwsr-xr-x. 1 root root 26588 Nov 20 2015 su -rwxr-xr-x. 1 root root 18068 Mar 14 2015 sync -rwxr-xr-x. 1 root root 366476 Mar 14 2016 systemctl lrwxrwxrwx. 1 root root 20 Jul 3 00:04 systemd -> /lib/systemd/systemd -rwxr-xr-x. 1 root root 30340 Mar 14 2016 systemd-ask-password -rwxr-xr-x. 1 root root 22140 Mar 14 2016 systemd-escape -rwxr-xr-x. 1 root root 157416 Mar 14 2016 systemd-inhibit -rwxr-xr-x. 1 root root 22132 Mar 14 2016 systemd-machine-id-setup -rwxr-xr-x. 1 root root 22128 Mar 14 2016 systemd-notify -rwxr-xr-x. 1 root root 59000 Mar 14 2016 systemd-tmpfiles -rwxr-xr-x. 1 root root 38524 Mar 14 2016 systemd-tty-ask-password-agent -rwxr-xr-x. 1 root root 13908 Mar 30 2015 tailf -rwxr-xr-x. 1 root root 224444 Nov 9 2014 tar -rwxr-xr-x. 1 root root 5580 Nov 8 2014 tempfile -rwxr-xr-x. 1 root root 38668 Mar 14 2015 touch -rwxr-xr-x. 1 root root 18060 Mar 14 2015 true -rwxr-xr-x. 1 root root 202388 Mar 14 2016 udevadm -rwsr-xr-x. 1 root root 22324 Mar 30 2015 umount -rwxr-xr-x. 1 root root 18076 Mar 14 2015 uname -rwxr-xr-x. 1 root root 323 Sep 13 2016 unchroot -rwxr-xr-x. 2 root root 2301 Sep 27 2014 uncompress -rwxr-xr-x. 1 root root 79984 Mar 14 2015 vdir -rwxr-xr-x. 1 root root 22124 Mar 30 2015 wdctl -rwxr-xr-x. 1 root root 946 Nov 8 2014 which lrwxrwxrwx. 1 root root 8 Jul 3 00:04 ypdomainname -> hostname -rwxr-xr-x. 1 root root 1937 Sep 27 2014 zcat -rwxr-xr-x. 1 root root 1777 Sep 27 2014 zcmp -rwxr-xr-x. 1 root root 5764 Sep 27 2014 zdiff -rwxr-xr-x. 1 root root 140 Sep 27 2014 zegrep -rwxr-xr-x. 1 root root 140 Sep 27 2014 zfgrep -rwxr-xr-x. 1 root root 2131 Sep 27 2014 zforce -rwxr-xr-x. 1 root root 5938 Sep 27 2014 zgrep -rwxr-xr-x. 1 root root 2037 Sep 27 2014 zless -rwxr-xr-x. 1 root root 1910 Sep 27 2014 zmore -rwxr-xr-x. 1 root root 5047 Sep 27 2014 znew ======= Now everything displays rules. I slightly changed the code so that it would output the files in the current folder if the parameters are not specified in the command line. But here's what the program displays if you type ./ls / bin: ======== znew: No such file or directory zfgrep: No such file or directory vdir: No such file or directory lesspipe: No such file or directory cat: No such file or directory zforce: No such file or directory run-parts: No such file or directory zegrep: No such file or directory nc: No such file or directory mktemp: No such file or directory dash: No such file or directory netcat: No such file or directory rm: No such file or directory systemd-escape: No such file or directory tar: No such file or directory sh: No such file or directory hostname: No such file or directory systemd: No such file or directory lessfile: No such file or directory echo: No such file or directory zless: No such file or directory ps: No such file or directory cpio: No such file or directory rmdir: No such file or directory unchroot: No such file or directory pidof: No such file or directory login: No such file or directory kill: No such file or directory domainname: No such file or directory systemd-tty-ask-password-agent: No such file or directory mkdir: No such file or directory dmesg: No such file or directory sed: No such file or directory nc.traditional: No such file or directory dir: No such file or directory egrep: No such file or directory nano: No such file or directory cp: No such file or directory zgrep: No such file or directory sleep: No such file or directory tailf: No such file or directory systemd-machine-id-setup: No such file or directory ss: No such file or directory fgrep: No such file or directory machinectl: No such file or directory rnano: No such file or directory lesskey: No such file or directory false: No such file or directory mount: No such file or directory chacl: No such file or directory netstat: No such file or directory dnsdomainname: No such file or directory dd: No such file or directory uncompress: No such file or directory touch: No such file or directory systemd-ask-password: No such file or directory readlink: No such file or directory chown: No such file or directory which: No such file or directory lessecho: No such file or directory grep: No such file or directory chgrp: No such file or directory kmod: No such file or directory mt: No such file or directory uname: No such file or directory systemd-tmpfiles: No such file or directory pwd: No such file or directory mknod: No such file or directory ln: No such file or directory mountpoint: No such file or directory ping: No such file or directory zdiff: No such file or directory mt-gnu: No such file or directory setfacl: No such file or directory lsblk: No such file or directory umount: No such file or directory journalctl: No such file or directory ypdomainname: No such file or directory loginctl: No such file or directory true: No such file or directory gzip: No such file or directory systemctl: No such file or directory chmod: No such file or directory ping6: No such file or directory ip: No such file or directory wdctl: No such file or directory nisdomainname: No such file or directory su: No such file or directory mv: No such file or directory udevadm: No such file or directory stty: No such file or directory gzexe: No such file or directory systemd-inhibit: No such file or directory tempfile: No such file or directory date: No such file or directory lsmod: No such file or directory df: No such file or directory systemd-notify: No such file or directory bash: No such file or directory rbash: No such file or directory gunzip: No such file or directory zcat: No such file or directory zmore: No such file or directory more: No such file or directory findmnt: No such file or directory less: No such file or directory sh.distrib: No such file or directory zcmp: No such file or directory sync: No such file or directory getfacl: No such file or directory --------- znew --------- zfgrep --------- vdir --------- lesspipe --------- cat --------- zforce --------- run-parts --------- zegrep --------- nc --------- mktemp --------- dash --------- netcat --------- rm --------- systemd-escape --------- tar --------- sh rwxrwx--- .. rwxrwx--- hostname rwxrwx--- systemd rwxrwx--- lessfile rwxrwx--- echo rwxrwx--- zless rwxrwx--- ps rwxrwx--- cpio rwxrwx--- rmdir rwxrwx--- unchroot rwxrwx--- pidof rwxrwx--- login rwxrwx--- kill rwxrwx--- domainname rwxrwx--- systemd-tty-ask-password-agent rwxrwx--- mkdir rwxrwx--- dmesg rwxrwx--- sed rwxrwx--- nc.traditional rwxrwx--- dir rwxrwx--- egrep rwxrwx--- nano rwxrwx--- cp rwxrwx--- zgrep rwxrwx--- sleep rwxrwx--- tailf rwxrwx--- systemd-machine-id-setup rwxrwx--- ss rwxrwx--- fgrep rwxrwx--- machinectl rwxrwx--- rnano rwxrwx--- lesskey rwxrwx--- false rwxrwx--- mount rwxrwx--- chacl rwxrwx--- netstat rwxrwx--- dnsdomainname rwxrwx--- dd rwxrwx--- uncompress rwxrwx--- touch rwxrwx--- systemd-ask-password rwxrwx--- readlink rwxrwx--- chown rwxrwx--- which rwxrwx--- lessecho rwxrwx--- ls rwxrwx--- grep rwxrwx--- chgrp rwxrwx--- kmod rwxrwx--- mt rwxrwx--- uname rwxrwx--- systemd-tmpfiles rwxrwx--- pwd rwxrwx--- mknod rwxrwx--- ln rwxrwx--- . rwxrwx--- mountpoint rwxrwx--- ping rwxrwx--- zdiff rwxrwx--- mt-gnu rwxrwx--- setfacl rwxrwx--- lsblk rwxrwx--- umount rwxrwx--- journalctl rwxrwx--- ypdomainname rwxrwx--- loginctl rwxrwx--- true rwxrwx--- gzip rwxrwx--- systemctl rwxrwx--- chmod rwxrwx--- ping6 rwxrwx--- ip rwxrwx--- wdctl rwxrwx--- nisdomainname rwxrwx--- su rwxrwx--- mv rwxrwx--- udevadm rwxrwx--- stty rwxrwx--- gzexe rwxrwx--- systemd-inhibit rwxrwx--- tempfile rwxrwx--- date rwxrwx--- lsmod rwxrwx--- df rwxrwx--- systemd-notify rwxrwx--- bash rwxrwx--- rbash rwxrwx--- gunzip rwxrwx--- zcat rwxrwx--- zmore rwxrwx--- more rwxrwx--- findmnt rwxrwx--- less rwxrwx--- sh.distrib rwxrwx--- zcmp rwxrwx--- sync rwxrwx--- getfacl ======= My new code:
1 | #include <stdio.h> |
2 | #include <sys/types.h> |
3 | #include <sys/stat.h> |
4 | #include <dirent.h> |
5 | #include <stdlib.h> |
6 | #include <string.h> |
7 | #include <pwd.h> |
8 | #include <grp.h> |
9 | #include <time.h> |
10 | #include <locale.h> |
11 | #include <langinfo.h> |
12 | #include <stdint.h> |
13 | |
14 | typedef struct { |
15 | char *arg; |
16 | } DATA; //динамический массив |
17 | |
18 | struct stat statbuf; //информация о файле |
19 | struct passwd *pwd; |
20 | |
21 | DATA *the_array = NULL; |
22 | int num_elements = 0; // Keeps track of the number of elements used |
23 | int num_allocated = 0; // This is essentially how large the array is |
24 | |
25 | //==== Функции
|
26 | int AddToArray (DATA item); |
27 | char const * sperm(__mode_t mode); |
28 | void printLine(); |
29 | //========
|
30 | |
31 | int main(int argc, char *argv[]) |
32 | {
|
33 | short int numFiles=0; //количество файлов/папок в аргументах |
34 | short int key_a=0; //ключ -a |
35 | for(int i=1; i<argc; i++) //Сканируем все аргументы |
36 | {
|
37 | char ch = argv[i][0]; //берем первый символ |
38 | if(ch == '-') |
39 | {
|
40 | int start=1; //начало после '-' |
41 | while(argv[i][start] != NULL) //проверяем ключи |
42 | {
|
43 | if(argv[i][start] == 'a') |
44 | key_a=1; |
45 | start++; |
46 | }
|
47 | }
|
48 | else
|
49 | {
|
50 | numFiles++; |
51 | DATA temp; |
52 | temp.arg = malloc((strlen(argv[i]) + 1) * sizeof(char)); |
53 | strncpy(temp.arg, argv[i], strlen(argv[i]) + 1); //копируем значение аргумента в переменную |
54 | if(AddToArray(temp) == -1) //если возникли проблемы с памятью |
55 | return 1; |
56 | }
|
57 | }
|
58 | |
59 | for(int i=0;i<numFiles;i++) //все каталоги из аргументов |
60 | {
|
61 | printLine(); |
62 | }
|
63 | |
64 | if(numFiles==0) //если не заданы папки в параметрах |
65 | {
|
66 | DIR *dir = opendir("."); |
67 | |
68 | struct dirent *ent; |
69 | while((ent = readdir(dir)) != NULL) |
70 | {
|
71 | |
72 | int ret = stat(ent->d_name, &statbuf); |
73 | if (ret < 0) |
74 | {
|
75 | perror(ent->d_name); |
76 | }
|
77 | |
78 | printf("%10.10s", sperm (statbuf.st_mode)); |
79 | printf("\t%s\n", ent->d_name); |
80 | }
|
81 | |
82 | }
|
83 | |
84 | return 0; |
85 | }
|
86 | |
87 | void printLine() //печать файла папки с инфой |
88 | {
|
89 | DIR *dir = opendir(the_array->arg); |
90 | *the_array++; |
91 | if(dir) |
92 | {
|
93 | struct dirent *ent; |
94 | while((ent = readdir(dir)) != NULL) |
95 | {
|
96 | |
97 | int ret = stat(ent->d_name, &statbuf); |
98 | if (ret < 0) |
99 | {
|
100 | perror(ent->d_name); |
101 | }
|
102 | |
103 | printf("%10.10s", sperm (statbuf.st_mode)); |
104 | printf("\t%s\n", ent->d_name); |
105 | }
|
106 | }
|
107 | else
|
108 | {
|
109 | fprintf(stderr, "Error opening directory\n"); |
110 | }
|
111 | }
|
112 | |
113 | char const * sperm(__mode_t mode) { |
114 | static char local_buff[16] = {0}; |
115 | int i = 0; |
116 | // user permissions
|
117 | if ((mode & S_IRUSR) == S_IRUSR) local_buff[i] = 'r'; |
118 | else local_buff[i] = '-'; |
119 | i++; |
120 | if ((mode & S_IWUSR) == S_IWUSR) local_buff[i] = 'w'; |
121 | else local_buff[i] = '-'; |
122 | i++; |
123 | if ((mode & S_IXUSR) == S_IXUSR) local_buff[i] = 'x'; |
124 | else local_buff[i] = '-'; |
125 | i++; |
126 | // group permissions
|
127 | if ((mode & S_IRGRP) == S_IRGRP) local_buff[i] = 'r'; |
128 | else local_buff[i] = '-'; |
129 | i++; |
130 | if ((mode & S_IWGRP) == S_IWGRP) local_buff[i] = 'w'; |
131 | else local_buff[i] = '-'; |
132 | i++; |
133 | if ((mode & S_IXGRP) == S_IXGRP) local_buff[i] = 'x'; |
134 | else local_buff[i] = '-'; |
135 | i++; |
136 | // other permissions
|
137 | if ((mode & S_IROTH) == S_IROTH) local_buff[i] = 'r'; |
138 | else local_buff[i] = '-'; |
139 | i++; |
140 | if ((mode & S_IWOTH) == S_IWOTH) local_buff[i] = 'w'; |
141 | else local_buff[i] = '-'; |
142 | i++; |
143 | if ((mode & S_IXOTH) == S_IXOTH) local_buff[i] = 'x'; |
144 | else local_buff[i] = '-'; |
145 | return local_buff; |
146 | }
|
147 | |
148 | int AddToArray (DATA item) //функция добавления в динамический массив |
149 | {
|
150 | if(num_elements == num_allocated) // Are more refs required? |
151 | {
|
152 | // Feel free to change the initial number of refs
|
153 | // and the rate at which refs are allocated.
|
154 | if (num_allocated == 0) |
155 | num_allocated = 3; // Start off with 3 refs |
156 | else
|
157 | num_allocated *= 2; // Double the number |
158 | // of refs allocated
|
159 | |
160 | // Make the reallocation transactional
|
161 | // by using a temporary variable first
|
162 | void *_tmp = realloc(the_array, (num_allocated * sizeof(DATA))); |
163 | |
164 | // If the reallocation didn't go so well,
|
165 | // inform the user bail out
|
166 | if (!_tmp) |
167 | {
|
168 | fprintf(stderr, "ERROR: Couldn't realloc memory!\n"); |
169 | return(-1); |
170 | }
|
171 | |
172 | // Things are looking good so far
|
173 | the_array = (DATA*)_tmp; |
174 | }
|
175 | |
176 | the_array[num_elements] = item; |
177 | num_elements++; |
178 | |
179 | return num_elements; |
180 | }
|
Alya wrote: > Now everything displays rules. I slightly changed the code so that it > would output the files in the current folder if the parameters are not > specified in the command line. > But here's what the program displays if you type ./ls / bin: > ======== > znew: No such file or directory [...] Yes. The issue still didn't change. You open /bin in opendir. Then you get a list of all the files within it - but only file names, without path! So you get e.g. "znew". You just give that name to stat, but because your current working directory is "/mnt/programs", stat will look for a file "/mnt/programs/znew", which does not exist. That's why you get the error "No such file or directory". You would have to specify "/bin/znew" to stat and not just "znew". How would stat know that it has to search in /bin for this file?
Rolf Magnus wrote: > Alya wrote: > Now everything displays rules. I slightly changed the code so that it > would output the files in the current folder if the parameters are not > specified in the command line. > But here's what the program displays if you type ./ls / bin: > ======== > znew: No such file or directory > > [...] > > Yes. The issue still didn't change. You open /bin in opendir. Then you > get a list of all the files within it - but only file names, without > path! > So you get e.g. "znew". You just give that name to stat, but because > your current working directory is "/mnt/programs", stat will look for a > file "/mnt/programs/znew", which does not exist. That's why you get the > error "No such file or directory". > You would have to specify "/bin/znew" to stat and not just "znew". How > would stat know that it has to search in /bin for this file? All now I have managed to solve a problem here such code:
1 | char txt[128]; |
2 | snprintf(txt, sizeof txt, "%s/%s", the_array->arg, next->d_name); |
3 | int ret = stat(txt, &statbuf); |
4 | if (ret < 0) |
5 | {
|
6 | perror(txt); |
7 | }
|
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