3.0.2.2 beta

use icon from exe if determined from manifest

LICENSE.mintty

@@ -17,6 +17,8 @@ See LICENSE.PuTTY for PuTTY's copyright notice, contributors, and license.
 The sources of PuTTY 0.60 can be downloaded from
 ftp://ftp.chiark.greenend.org.uk/users/sgtatham/putty-0.60.
 
+The minibidi algorithm is under MIT license as quoted in the source file.
+
 Sixel code (sixel.c) is relicensed under GPL like mintty with the 
 permission of its author (kmiya@culti); Sixel colour conversion code 
 (sixel_hls.c) is licensed by its author Ross Combs under the license 
@@ -31,3 +33,7 @@ The colour schemes / theme files bundled with mintty are included
 under various licenses. The source and license or permission are 
 quoted in the respective theme files.
 
+Bell sounds files are included, mostly under the creative commons license 
+(https://creativecommons.org/publicdomain/zero/1.0/), see also the README 
+in the sounds subdirectory.
+

README.md

@@ -73,12 +73,19 @@ A Windows Appx package and certificate is available in the [wsltty.appx](https:/
 
 WSLtty can be invoked with
 * installed Start Menu shortcuts (or Desktop shortcuts if copied there)
-* *.bat scripts
+* *.bat scripts (optionally with WSL command as parameters)
 * Explorer context menu (if installed from the Start Menu `WSLtty` subfolder)
 
 Starting the mintty terminal directly from the WSLtty installation location 
 is discouraged because that would bypass essential options.
 
+#### WSL 2 ####
+
+Due to some incompatible changes by Microsoft, wslbridge cannot connect 
+in WSL 2 mode at this time.
+Workaround:
+* `wsl --set-default-version 1`
+
 ---
 
 ### Configuration ###
@@ -99,6 +106,12 @@ One Desktop shortcut is installed:
 Other, distribution-specific shortcuts can be copied to the desktop 
 from the Start Menu if desired.
 
+The Start menu folder WSLtty contains the link 
+<img align=absmiddle height=25 src=https://user-images.githubusercontent.com/12740416/57078483-a7846a00-6cee-11e9-9c5e-8c2e9e56cae4.png>`configure WSL shortcuts`.
+This function is initially run when wsltty is installed.
+If should be rerun after adding or removing WSL distributions, 
+in order to create the respective set of shortcuts in the Start menu.
+
 #### Command line scripts `wsl*.bat` ####
 
 WSLtty installs the following scripts into `%LOCALAPPDATA%\Microsoft\WindowsApps` 
@@ -117,9 +130,23 @@ WSLtty provides context menu entries for all installed WSL distributions
 and one for the configured default distribution,
 to start a respective WSL terminal in a specific folder from an Explorer window.
 They are not installed by default.
+
 To add launch entries for the default or all WSL distributions to the 
 Explorer context menu, or remove them, run the respective script from the 
-Start Menu subfolder `WSLtty`.
+Start Menu subfolder `WSLtty`:
+* <img align=absmiddle height=25 src=https://user-images.githubusercontent.com/12740416/57078483-a7846a00-6cee-11e9-9c5e-8c2e9e56cae4.png>`add default to context menu`
+  adds context menu entries for the default WSL distribution
+* <img align=absmiddle height=25 src=https://user-images.githubusercontent.com/12740416/57078483-a7846a00-6cee-11e9-9c5e-8c2e9e56cae4.png>`add to context menu`
+  adds context menu entries for all WSL distributions
+* <img align=absmiddle height=25 src=https://user-images.githubusercontent.com/12740416/57078483-a7846a00-6cee-11e9-9c5e-8c2e9e56cae4.png>`remove from context menu`
+  removes context menu entries for WSL distributions
+
+#### Icon ####
+
+Wsltty installation and the mintty terminal try to use the icon of the 
+respective WSL distribution. If it cannot be determined, a penguin icon 
+is used as a default. You can replace it with your preferred fallback icon 
+by replacing the icon file `%LOCALAPPDATA%\wsltty\wsl.ico`.
 
 #### Mintty settings ####
 

VERSION

@@ -1 +1 @@
-1.9.5
+3.0.2.2

config-distros.sh

@@ -3,7 +3,7 @@
 installdir=${installdir:-'%LOCALAPPDATA%\wsltty'}
 configdir=${configdir:-'%APPDATA%\wsltty'}
 
-PATH=/bin:"$PATH"
+PATH=/bin:"$PATH":$SYSTEMROOT/System32
 
 contextmenu=false
 remove=false
@@ -97,21 +97,33 @@ echo Creating %1.bat
 
 echo @echo off> %1.bat
 echo rem Start mintty terminal for WSL package %name% in current directory>> %1.bat
-echo %target% -i "%icon%" %minttyargs% %bridgeargs%>> %1.bat
+echo %target% -i "%icon%" %minttyargs% %bridgeargs% %%*>> %1.bat
 /EOB
 fi
 
 lxss="/HKEY_CURRENT_USER/Software/Microsoft/Windows/CurrentVersion/Lxss"
 schema="/HKEY_CURRENT_USER/Software/Classes/Local Settings/Software/Microsoft/Windows/CurrentVersion/AppModel/SystemAppData"
 
-#(regtool list "$lxss" 2>/dev/null && echo || echo "No WSL packages registered" >&2) |
-(
-  if $alldistros
-  then  regtool list "$lxss" 2>/dev/null
-  else  true
-  fi && echo || echo "No WSL packages registered" >&2) |
-while read guid
-do
+appex () {
+  while read line
+  do
+	case "$line" in
+	*Application*Executable*)
+		for item in $line
+		do	case "$item" in
+			Executable=*)
+				eval $item
+				echo "$Executable"
+				break;;
+			esac
+		done
+		break;;
+	esac
+  done < $*
+}
+
+config () {
+  guid="$1"
   ok=false
   case $guid in
   {*)
@@ -131,11 +143,21 @@ do
     if package=`regtool -q get "$lxss/$guid/PackageFamilyName"`
     then
     	instdir=`regtool get "$schema/$package/Schemas/PackageFullName"`
-    	if [ -r "$ProgramW6432/WindowsApps/$instdir/images/icon.ico" ]
+    	# get actual executable path (may not match $distro) from app manifest
+    	manifest="$ProgramW6432/WindowsApps/$instdir/AppxManifest.xml"
+    	psh_cmd='([xml]$(Get-Content '"\"$manifest\""')).Package.Applications.Application.Executable'
+    	executable=`appex "$manifest"`
+    	if [ -r "$ProgramW6432/WindowsApps/$instdir/$executable" ]
+    	then	icon="%PROGRAMFILES%/WindowsApps/$instdir/$executable"
+    	elif [ -r "$ProgramW6432/WindowsApps/$instdir/images/icon.ico" ]
     	then	icon="%PROGRAMFILES%/WindowsApps/$instdir/images/icon.ico"
     	else	icon="$installdir"'\wsl.ico'
     	fi
     	root="$basepath/rootfs"
+    elif [ -f "$basepath/$distro.exe" ]
+    then
+    	icon="$basepath/$distro.exe"
+    	root="$basepath/rootfs"
     else
     	icon="%LOCALAPPDATA%/lxss/bash.ico"
     	root="$basepath"
@@ -151,7 +173,7 @@ do
     bridgeargs='--distro-guid "'"$guid"'" -t'
 
     ok=true;;
-  "")	# WSL default installation
+  DefaultDistribution|"")	# WSL default installation
     distro=
     name=WSL
     icon="$installdir"'\wsl.ico'
@@ -167,28 +189,36 @@ do
   echoc "- icon $icon"
   echoc "- root $root"
   target="$installdir"'\bin\mintty.exe'
-  bridgeargs=" "
+  bridgeargs=" "	# deprecated
+
+  if $ok && [ -n "$distro" ]
+  then	# fix #163: backend missing +x with certain mount options
+	echo Setting +x wslbridge-backend for distro "'$distro'"
+	(cd "$LOCALAPPDATA/wsltty/bin"; wsl.exe -d "$distro" chmod +x wslbridge-backend)
+#	(cd "$LOCALAPPDATA/wsltty/bin"; "$SYSTEMROOT/System32/bash.exe" "$guid" -c chmod +x wslbridge-backend)
+  fi
 
   if $ok && $config
   then
-    export target minttyargs bridgeargs icon
+    export name target minttyargs bridgeargs icon
 
     if $contextmenu
     then
       # context menu entries
       #cmd /C mkcontext "$name"
       direckey='HKEY_CURRENT_USER\Software\Classes\Directory'
+      keyname="${name}_Terminal"
       if $remove
       then
-        reg delete "$direckey\\shell\\$name" /f
-        reg delete "$direckey\\Background\\shell\\$name" /f
+        reg delete "$direckey\\shell\\$keyname" /f
+        reg delete "$direckey\\Background\\shell\\$keyname" /f
       else
-        reg add "$direckey\\shell\\$name" /d "$name Terminal" /f
-        reg add "$direckey\\shell\\$name" /v Icon /d "$icon" /f
-        cmd /C reg add "$direckey\\shell\\$name\\command" /d "\"$target\" -i \"$icon\" --dir \"%1\" $minttyargs $bridgeargs" /f
-        reg add "$direckey\\Background\\shell\\$name" /d "$name Terminal" /f
-        reg add "$direckey\\Background\\shell\\$name" /v Icon /d "$icon" /f
-        cmd /C reg add "$direckey\\Background\\shell\\$name\\command" /d "\"$target\" -i \"$icon\" $minttyargs $bridgeargs" /f
+        reg add "$direckey\\shell\\$keyname" /d "$name Terminal" /f
+        reg add "$direckey\\shell\\$keyname" /v Icon /d "$icon" /f
+        cmd /C reg add "$direckey\\shell\\$keyname\\command" /d "\"$target\" -i \"$icon\" --dir \"%1\" $minttyargs $bridgeargs" /f
+        reg add "$direckey\\Background\\shell\\$keyname" /d "$name Terminal" /f
+        reg add "$direckey\\Background\\shell\\$keyname" /v Icon /d "$icon" /f
+        cmd /C reg add "$direckey\\Background\\shell\\$keyname\\command" /d "\"$target\" -i \"$icon\" $minttyargs $bridgeargs" /f
       fi
     else
       # invocation shortcuts and scripts
@@ -217,7 +247,14 @@ do
 
         # default desktop shortcut in ~ -> Desktop
         if [ "$name" = "WSL" ]
-        then	cmd /C copy "$name Terminal.lnk" "%USERPROFILE%\\Desktop"
+        then
+              #cmd /C copy "$name Terminal.lnk" "%USERPROFILE%\\Desktop"
+              #cmd /C copy "$name Terminal.lnk" "%APPDATA%\\..\\Desktop\\"
+              # the above does not work reliably (see #166)
+              # determine actual Desktop folder
+              desktopkey='\HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders\Desktop'
+              desktop=`regtool get "$desktopkey"`
+              cmd /C copy "$name Terminal.lnk" "$desktop\\"
         fi
 
         # launch script in ~ -> WSLtty home, WindowsApps launch folder
@@ -228,4 +265,18 @@ do
 
     fi
   fi
+}
+
+# ensure proper parameter passing to cmd /C
+chcp.com 65001 # just in case; seems to work without as well
+
+# configure for all distros, plus default distro
+for guid in `
+  if $alldistros
+  then  regtool list "$lxss" 2>/dev/null
+  else  echo DefaultDistribution
+  fi || echo "No WSL packages registered" >&2
+`
+do	config $guid
 done
+

install.bat

@@ -26,11 +26,13 @@ copy "add to context menu.lnk" "%installdir%"
 copy "add default to context menu.lnk" "%installdir%"
 copy "remove from context menu.lnk" "%installdir%"
 copy "configure WSL shortcuts.lnk" "%installdir%"
-copy "WSL Terminal.lnk" "%installdir%"
-copy "WSL Terminal %%.lnk" "%installdir%"
-copy wsl.ico "%installdir%"
+rem copy "WSL Terminal.lnk" "%installdir%"
+rem copy "WSL Terminal %%.lnk" "%installdir%"
 copy config-distros.sh "%installdir%"
 copy mkshortcut.vbs "%installdir%"
+copy uninstall.bat "%installdir%"
+rem allow persistent customization of default icon:
+if not exist "%installdir%\wsl.ico" copy tux.ico "%installdir%\wsl.ico"
 
 if not exist "%installdir%\bin" goto instbin
 rem move previous programs possibly in use out of the way
@@ -59,10 +61,13 @@ mkdir "%installdir%\usr\share\mintty\lang"
 copy lang.zoo "%installdir%\usr\share\mintty\lang"
 mkdir "%installdir%\usr\share\mintty\themes"
 copy themes.zoo "%installdir%\usr\share\mintty\themes"
+mkdir "%installdir%\usr\share\mintty\sounds"
+copy sounds.zoo "%installdir%\usr\share\mintty\sounds"
 mkdir "%installdir%\usr\share\mintty\info"
 copy charnames.txt "%installdir%\usr\share\mintty\info"
 mkdir "%installdir%\usr\share\mintty\icon"
-copy wsl.ico "%installdir%\usr\share\mintty\icon"
+copy tux.ico "%installdir%\usr\share\mintty\icon"
+copy mintty.ico "%installdir%\usr\share\mintty\icon"
 
 
 rem create Start Menu Folder
@@ -77,8 +82,8 @@ copy "add to context menu.lnk" "%smf%"
 copy "add default to context menu.lnk" "%smf%"
 copy "remove from context menu.lnk" "%smf%"
 copy "configure WSL shortcuts.lnk" "%smf%"
-copy "WSL Terminal.lnk" "%smf%"
-copy "WSL Terminal %%.lnk" "%smf%"
+rem copy "WSL Terminal.lnk" "%smf%"
+rem copy "WSL Terminal %%.lnk" "%smf%"
 rem clean up previous installation
 rmdir /S /Q "%smf%\context menu shortcuts"
 
@@ -87,6 +92,8 @@ cd /D "%installdir%\usr\share\mintty\lang"
 "%installdir%\bin\zoo" xO lang
 cd /D "%installdir%\usr\share\mintty\themes"
 "%installdir%\bin\zoo" xO themes
+cd /D "%installdir%\usr\share\mintty\sounds"
+"%installdir%\bin\zoo" xO sounds
 
 
 :migrate configuration
@@ -109,8 +116,8 @@ rmdir "%oldroot%\home"
 
 rem create user config directory and subfolders
 mkdir "%configdir%\lang"
-mkdir "%configdir%\sounds"
 mkdir "%configdir%\themes"
+mkdir "%configdir%\sounds"
 
 rem create config file if it does not yet exist
 if not exist "%configdir%\config" echo # To use common configuration in %%APPDATA%%\mintty, simply remove this file>"%configdir%\config"

makefile

@@ -8,10 +8,10 @@
 
 
 # wsltty release
-ver=1.9.5
+ver=3.0.2.2
 
 # wsltty appx release - must have 4 parts!
-verx=1.9.5.0
+verx=3.0.2.2
 
 # Windows SDK version for appx
 WINSDKKEY=/HKEY_LOCAL_MACHINE/SOFTWARE/WOW6432Node/Microsoft/.NET Framework Platform/Setup/Multi-Targeting Pack
@@ -19,7 +19,7 @@ WINSDKVER=`regtool list '$(WINSDKKEY)' | sed -e '$$ q' -e d`
 
 ##############################
 # mintty release version
-minttyver=2.9.5
+minttyver=3.0.2
 
 # or mintty branch or commit version
 #minttyver=master
@@ -121,18 +121,26 @@ wslbridge-package:
 
 wslbridge-source:	wslbridge-$(wslbridge-commit).zip
 	unzip -o wslbridge-$(wslbridge-commit).zip
+	cd wslbridge-$(wslbridge-commit)/backend; patch -T -p1 < ../../wslbridge-backend-static.patch
 	tr -d '\015' < wslbridge-$(wslbridge-commit)/LICENSE.txt > LICENSE.wslbridge
 
 wslbridge-$(wslbridge-commit).zip:
 	$(wgeto) https://github.com/rprichard/wslbridge/archive/$(wslbridge-commit).zip -o wslbridge-$(wslbridge-commit).zip
 
 wslbridge-frontend:	wslbridge-source
+	echo ------------- Compiling wslbridge frontend
 	cd wslbridge-$(wslbridge-commit)/frontend; make
 	strip wslbridge-$(wslbridge-commit)/out/wslbridge.exe
 	mkdir -p bin
 	cp wslbridge-$(wslbridge-commit)/out/wslbridge.exe bin/
 
-wslbridge-backend:	wslbridge-source
+#wslbridge-backend:	wslbridge-source
+# tweak dependency to support build testing on non-Windows 10:
+backend-bin=wslbridge-$(wslbridge-commit)/out/wslbridge-backend
+backend-src=wslbridge-$(wslbridge-commit)/backend/wslbridge-backend.cc
+wslbridge-backend:	$(backend-bin) wslbridge-source
+$(backend-bin):	$(backend-src)
+	echo ------------- Compiling wslbridge backend
 	cd wslbridge-$(wslbridge-commit)/backend; if uname -m | grep x86_64; then cmd /C wsl make; else wslbridge make; fi
 	mkdir -p bin
 	cp wslbridge-$(wslbridge-commit)/out/wslbridge-backend bin/
@@ -140,6 +148,7 @@ wslbridge-backend:	wslbridge-source
 mintty-get:
 	$(wgeto) https://github.com/mintty/mintty/archive/$(minttyver).zip -o mintty-$(minttyver).zip
 	unzip -o mintty-$(minttyver).zip
+	cp mintty-$(minttyver)/icon/terminal.ico mintty.ico
 
 wslbuild=LDFLAGS="-static -static-libgcc -s"
 appxbuild=$(wslbuild) CCOPT=-DWSLTTY_APPX
@@ -153,6 +162,7 @@ mintty-build:
 	cd mintty-$(minttyver)/src; make $(wslbuild) $(wslversion)
 	mkdir -p bin
 	cp mintty-$(minttyver)/bin/mintty.exe bin/
+	strip bin/mintty.exe
 
 mintty-build-appx:
 	# ensure rebuild of version-specific check and message
@@ -161,20 +171,24 @@ mintty-build-appx:
 	cd mintty-$(minttyver)/src; make $(appxbuild) $(appxversion)
 	mkdir -p bin
 	cp mintty-$(minttyver)/bin/mintty.exe bin/
+	strip bin/mintty.exe
 
 mintty-pkg:
 	cp mintty-$(minttyver)/LICENSE LICENSE.mintty
 	cd mintty-$(minttyver)/lang; zoo a lang *.po; mv lang.zoo ../../
 	cd mintty-$(minttyver)/themes; zoo a themes *[!~]; mv themes.zoo ../../
+	cd mintty-$(minttyver)/sounds; zoo a sounds *.wav *.WAV *.md; mv sounds.zoo ../../
 	# add charnames.txt to support "Character Info"
 	cd mintty-$(minttyver)/src; sh ./mknames
 	cp mintty-$(minttyver)/src/charnames.txt .
 
 mintty-appx:
 	mkdir -p usr/share/mintty
-	cd usr/share/mintty; mkdir -p lang themes info
+	cd usr/share/mintty; mkdir -p lang themes sounds info
 	cp mintty-$(minttyver)/lang/*.po usr/share/mintty/lang/
 	cp mintty-$(minttyver)/themes/*[!~] usr/share/mintty/themes/
+	cp mintty-$(minttyver)/sounds/*.wav usr/share/mintty/sounds/
+	cp mintty-$(minttyver)/sounds/*.WAV usr/share/mintty/sounds/
 	# add charnames.txt to support "Character Info"
 	cd mintty-$(minttyver)/src; sh ./mknames
 	cp mintty-$(minttyver)/src/charnames.txt usr/share/mintty/info/
@@ -204,6 +218,7 @@ cop:	ver
 	cp bin/zoo.exe rel/
 	cp lang.zoo rel/
 	cp themes.zoo rel/
+	cp sounds.zoo rel/
 	cp charnames.txt rel/
 	cp bin/wslbridge.exe rel/
 	cp bin/wslbridge-backend rel/

makewinx.cfg

@@ -25,7 +25,7 @@ SourceFiles=SourceFiles
 [Strings]
 InstallPrompt=Install Mintty terminal for WSL (Windows Subsystem for Linux)?
 DisplayLicense=
-FinishMessage=Mintty for WSL installed - for documentation see https://github.com/mintty/wsltty
+FinishMessage=Mintty for WSL installed - for documentation and configuration see https://github.com/mintty/wsltty
 TargetName=wsltty-%version%-install.exe
 FriendlyName=wsltty
 AppLaunched=cmd.exe /c install.bat
@@ -47,7 +47,7 @@ FILE11="dash.exe"
 FILE12="regtool.exe"
 FILE13="install.bat"
 FILE14="uninstall.bat"
-FILE15="wsl.ico"
+FILE15="tux.ico"
 FILE16="add to context menu.lnk"
 FILE17="add default to context menu.lnk"
 FILE18="remove from context menu.lnk"
@@ -55,9 +55,9 @@ FILE19="wsltty home & help.url"
 FILE20="zoo.exe"
 FILE21="lang.zoo"
 FILE22="themes.zoo"
-FILE23="WSL Terminal %.lnk"
-FILE24="WSL Terminal.lnk"
-FILE25="mkshortcut.vbs"
+FILE23="sounds.zoo"
+FILE24="mkshortcut.vbs"
+FILE25="mintty.ico"
 
 [SourceFiles]
 SourceFiles0=.

mkshortcut.vbs

@@ -24,7 +24,7 @@ rem lnk.Arguments = Wscript.Arguments.Named("arguments")
 lnk.TargetPath = wshell.ExpandEnvironmentStrings("%target%")
 minttyargs = wshell.ExpandEnvironmentStrings("%minttyargs%")
 bridgeargs = wshell.ExpandEnvironmentStrings("%bridgeargs%")
-lnk.Arguments = minttyargs & bridgeargs
+lnk.Arguments = minttyargs & " " & bridgeargs
 rem wscript.echo "minttyargs: " & minttyargs
 rem wscript.echo lnk.Arguments
 

wslbridge-backend-static.patch

@@ -0,0 +1,76 @@
+diff -rup old/Makefile new/Makefile
+--- old/Makefile	2018-05-06 01:12:36.000000000 +0200
++++ new/Makefile	2019-07-24 22:29:12.874257700 +0200
+@@ -8,7 +8,9 @@ all : ../out/wslbridge-backend
+ 		-static-libgcc -static-libstdc++ \
+ 		-D_GNU_SOURCE \
+ 		-DWSLBRIDGE_VERSION=$(shell cat ../VERSION.txt) \
+-		-Wall -O2 $< ../common/SocketIo.cc -o $@ -lutil -pthread
++		-Wall -O2 $< ../common/SocketIo.cc -o $@ \
++		-ldl -lutil -static -pthread \
++		-Wl,--whole-archive -lpthread -Wl,--no-whole-archive
+ 	$(STRIP) $@
+ 
+ clean:
+diff -rup old/wslbridge-backend.cc new/wslbridge-backend.cc
+--- old/wslbridge-backend.cc	2018-05-06 01:12:36.000000000 +0200
++++ new/wslbridge-backend.cc	2019-07-24 22:55:25.324307400 +0200
+@@ -494,6 +494,58 @@ static void frontendVersionCheck(const c
+ 
+ } // namespace
+ 
++#define getpwuid _getpwuid
++
++#include <dlfcn.h>
++typedef struct passwd * (*__getpwuid_t)(int uid);
++
++struct passwd * getpwuid(int uid)
++{
++    void * dl = dlopen(0, 0);
++printf("dlopen %p\n", dl);
++    if (dl) {
++        struct passwd * (*__getpwuid)(int uid) =
++            (__getpwuid_t)dlsym(dl, "getpwuid");
++printf("dlsym %p\n", __getpwuid);
++        if (__getpwuid)
++            return __getpwuid(uid);
++    }
++
++    FILE * pwd = fopen("/etc/passwd", "r");
++    if (pwd) {
++        char pwbuf[222];
++        static struct passwd pw;
++        pw.pw_shell = 0;
++        while (fgets(pwbuf, sizeof pwbuf, pwd)) {
++            char * sep = strchr(pwbuf, ':');
++            if (!sep) continue;
++            sep = strchr(++sep, ':');
++            if (!sep) continue;
++            int pwuid;
++            if (sscanf(sep, ":%d:", &pwuid) == 1 && pwuid == uid) {
++                // pw_name:pw_passwd:pw_uid:pw_gid:pw_gecos:pw_dir:pw_shell
++                //                  ^
++                sep = strchr(++sep, ':');
++                if (!sep) continue;
++                sep = strchr(++sep, ':');
++                if (!sep) continue;
++                sep = strchr(++sep, ':');
++                if (!sep) continue;
++                sep = strchr(++sep, ':');
++                if (!sep) continue;
++                pw.pw_shell = ++sep;
++                sep = strchr(++sep, '\n');
++                if (sep)
++                    *sep = 0;
++                break;
++            }
++        }
++        fclose(pwd);
++        return &pw;
++    }
++    return 0;
++}
++
+ int main(int argc, char *argv[]) {
+ 
+     // If the backend crashes, it prints a message to its stderr, which is a