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cygwin1-20000811: exec*() quoting backslashes for args containing spaces?
- To: cygwin at sourceware dot cygnus dot com
- Subject: cygwin1-20000811: exec*() quoting backslashes for args containing spaces?
- From: Jonathan Kamens <jik at kamens dot brookline dot ma dot us>
- Date: Wed, 16 Aug 2000 11:29:06 -0400
(Note: I am not on this mailing list, so if you reply to this message,
please be sure to CC me.)
Put this in foo.pl:
$" = "\n";
print "@ARGV\n";
Now in a cygwin window run:
perl foo.pl '\foo bar' '\foobar'
You SHOUlD see this:
\foo bar
\foobar
Instead, you'll see this:
\\foo bar
\foobar
The space appears to be the kicker -- when an argument has spaces in
it, the exec*() functions in cygwin1.dll quote the backslashes in it
before passing it to the called process. This doesn't happen if there
are no spaces. This seems rather broken.
The reason why I believe that cygwin1.dll is doing the bogus quoting
is because it happens whether you run the command from bash or ash.
I confirmed that this problem exists with two different cygwin1.dll's,
including the cygwin1-20000811 snapshot. Here's the output of
"cygcheck -s -v -r" for that one:
*************************
Cygnus Win95/NT Configuration Diagnostics
Current System Time: Wed Aug 16 11:19:14 2000
WinNT Ver 4.0 build 1381 Service Pack 6
Path: /c/Program Files/Intel/Compiler4.0/bin
/c/Program Files/Microsoft Visual Studio/Common/msdev98/BIN
/c/Program Files/Microsoft Visual Studio/VC98/BIN
/c/Program Files/Microsoft Visual Studio/Common/TOOLS
/c/Program Files/Microsoft Visual Studio/Common/TOOLS/WINNT
/usr/local/bin
/usr/bin
/usr/local/bin
/c/Program Files/Microsoft Visual Studio/vt6/bin
/c/Program Files/Microsoft Visual Studio/common/msdev98/bin
/c/Program Files/Microsoft Visual Studio/msdn98/98vs/1033/setup
/c/Perl/bin
/usr/bin
/c/WINNT/system32
/c/WINNT
/c/Program Files/InstallShield/InstallShield 5.5 Professional Edition/Program
SysDir: C:\WINNT\System32
WinDir: C:\WINNT
CYGWIN = `binmode tty nontsec'
HOME = `/m'
MAKE_MODE = `unix'
PWD = `/c/tmp'
!C: = `C:\WINNT\Profiles\jik\Desktop'
COMPUTERNAME = `VOLTRON'
COMSPEC = `C:\WINNT\system32\cmd.exe'
ESHELL = `bash.exe'
HOMEDRIVE = `C:'
HOMEPATH = `\'
HOSTNAME = `VOLTRON'
HOSTTYPE = `i586'
INCLUDE = `c:\Program Files\Intel\Compiler4.0\include;c:\Program Files\Microsoft Visual Studio\VC98\ATL\INCLUDE;c:\Program Files\Microsoft Visual Studio\VC98\INCLUDE;c:\Program Files\Microsoft Visual Studio\VC98\MFC\INCLUDE;C:\Program Files\Microsoft Visual Studio\vt6\include;'
LIB = `c:\Program Files\Intel\Compiler4.0\lib;c:\Program Files\Microsoft Visual Studio\VC98\LIB;c:\Program Files\Microsoft Visual Studio\VC98\MFC\LIB;C:\Program Files\Microsoft Visual Studio\vt6\lib;'
LOGONSERVER = `\\VOLTRON'
MACHTYPE = `i586-pc-cygwin32'
MAIL = `/m/Mailbox'
MSDevDir = `c:\Program Files\Microsoft Visual Studio\Common\msdev98'
MSVCDir = `c:\Program Files\Microsoft Visual Studio\VC98'
NUMBER_OF_PROCESSORS = `1'
OS2LIBPATH = `C:\WINNT\system32\os2\dll;'
OS = `Windows_NT'
OSTYPE = `cygwin32'
PATHEXT = `.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH'
PROCESSOR_ARCHITECTURE = `x86'
PROCESSOR_IDENTIFIER = `x86 Family 6 Model 8 Stepping 1, GenuineIntel'
PROCESSOR_LEVEL = `6'
PROCESSOR_REVISION = `0801'
PROMPT = `$P$G'
SHELL = `/bin/sh'
SHLVL = `1'
SYSTEMDRIVE = `C:'
SYSTEMROOT = `C:\WINNT'
TEMP = `/c/TEMP'
TERM = `cygwin'
TMP = `/c/TEMP'
USERDOMAIN = `VOLTRON'
USERNAME = `jik'
USERPROFILE = `C:\WINNT\Profiles\jik'
WINDIR = `C:\WINNT'
_ = `/usr/bin/cygcheck'
TZ = `EST5EDT4,M4.1.0/2,M10.5.0/2'
HKEY_CURRENT_USER\Software\Cygnus Solutions
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2
(default) = `/cygdrive'
cygdrive flags = 0x00000020
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\Program Options
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\00
(default) = `u:'
unix = `/u'
fbinary = 0x00000001
fsilent = 0x00000000
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\01
(default) = `s:'
unix = `/software'
fbinary = 0x00000001
fsilent = 0x00000000
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\02
(default) = `p:'
unix = `/projects'
fbinary = 0x00000001
fsilent = 0x00000000
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\03
(default) = `m:'
unix = `/m'
fbinary = 0x00000001
fsilent = 0x00000000
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\04
(default) = `d:'
unix = `/d'
fbinary = 0x00000001
fsilent = 0x00000000
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\05
(default) = `c:'
unix = `/'
fbinary = 0x00000001
fsilent = 0x00000000
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\Installed Components
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\Installed Components\c:/cygwin
(default) = `0000'
bash = `0002.0004.0001'
binutils = `20000722.0001'
bison = `0000'
byacc = `0000'
bzip = `0000'
clear = `0001.0000'
crypt = `0001.0000'
cygwin = `0001.0001.0003.0001'
dejagnu = `0000'
diff = `0000'
expect = `0000'
fileutils = `0000'
findutils = `0000'
flex = `0000'
gawk = `0003.0000.0004'
gcc = `0002.0095.0002.0002'
gdb = `20000610'
gperf = `0000'
grep = `0000'
groff = `0001.011a.0001'
gzip = `0000'
inetutils = `0001.0003.0002.05p1'
less = `0000'
libpng = `0001.0000.0006.0001'
login = `0001.0004.0001'
m = `0000'
make = `0003.0079.0003'
man = `0001.005g.0002'
mt = `0001.0009.0001'
curlstuff = `0000'
opengl = `0001.0002.0001.0001'
patch = `0000'
sed = `0003.0002.0001'
shellutils = `0000'
tar = `0000'
tcltk = `20000610'
termcap = `20000630'
texinfo = `0000'
textutils = `0002.0000.0001'
time = `0000'
vim = `0005.0007.0004'
zlib = `0001.0001.0003.0001'
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/
(default) = `c:\cygwin'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/c
(default) = `c:'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/d
(default) = `d:'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/m
(default) = `m:'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/projects
(default) = `p:'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/software
(default) = `s:'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/u
(default) = `u:'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/bin
(default) = `c:\cygwin\bin'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/lib
(default) = `c:\cygwin\lib'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin B20
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin B20\B20.1
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\00
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\01
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\02
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\03
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\04
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\05
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\06
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\07
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\08
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\09
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0A
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0B
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0C
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0D
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0E
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0F
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\10
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\11
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\12
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\13
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\14
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\15
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\16
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\17
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\18
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\19
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1A
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1B
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1C
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1D
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\GNUPro
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\GNUPro\i586-cygwin32
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\GNUPro\i586-cygwin32\i586-cygwin32
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\GNUPro\i586-cygwin32\i586-cygwin32\cygwin-B20.1
(default) = `c:\cygnus\cygwin-b20'
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Cygnus Cygwin B20
(default) = `C:\WINNT\IsUninst.exe -fc:\cygnus\cygwin-b20\Uninst.isu'
DisplayName = `Cygwin B20'
a: fd N/A N/A
c: hd NTFS 2047Mb 83% CP CS UN PA FC
d: hd NTFS 2604Mb 44% CP CS UN PA FC
e: cd N/A N/A
m: net NTFS 7051Mb 98% PA jik
p: net NTFS 2524Mb 76% PA projects
s: net NTFS 17240Mb 88% PA software
t: net NTFS 17240Mb 88% PA tools
u: net NTFS 159Mb 63% PA u
c:\cygwin\bin /usr/bin system binmode
c:\cygwin\lib /usr/lib system binmode
c:\cygwin / system binmode
c: /c system binmode
d: /d system binmode
m: /m system binmode
p: /projects system binmode
s: /software system binmode
u: /u system binmode
Found: c:\cygwin\usr\local\bin\bash.exe
Found: c:\cygwin\bin\bash.exe
Warning: c:\cygwin\usr\local\bin\bash.exe hides c:\cygwin\bin\bash.exe
Found: \bin\bash.exe
Warning: c:\cygwin\usr\local\bin\bash.exe hides \bin\bash.exe
Found: c:\cygwin\bin\cat.exe
Found: c:\cygwin\bin\cpp.exe
Found: c:\cygwin\bin\find.exe
Found: c:\cygwin\bin\gcc.exe
Found: c:\cygwin\bin\gdb.exe
Found: c:\cygwin\bin\ld.exe
Found: c:\cygwin\bin\ls.exe
Found: c:\cygwin\bin\make.exe
Found: c:\cygwin\bin\sh.exe
Found: \bin\sh.exe
Warning: c:\cygwin\bin\sh.exe hides \bin\sh.exe
83k 2000/06/11 c:\cygwin\bin\cygitcl30.dll - os=4.0 img=1.0 sys=4.0
"cygitcl30.dll" v0.0 ts=2000/6/10 23:34
35k 2000/06/11 c:\cygwin\bin\cygitk30.dll - os=4.0 img=1.0 sys=4.0
"cygitk30.dll" v0.0 ts=2000/6/10 23:34
402k 2000/06/11 c:\cygwin\bin\cygtcl80.dll - os=4.0 img=1.0 sys=4.0
"cygtcl80.dll" v0.0 ts=2000/6/10 23:30
5k 2000/06/11 c:\cygwin\bin\cygtclpip80.dll - os=4.0 img=1.0 sys=4.0
10k 2000/06/11 c:\cygwin\bin\cygtclreg80.dll - os=4.0 img=1.0 sys=4.0
"cygtclreg80.dll" v0.0 ts=2000/6/10 23:30
639k 2000/06/11 c:\cygwin\bin\cygtk80.dll - os=4.0 img=1.0 sys=4.0
"cygtk80.dll" v0.0 ts=2000/6/10 23:34
643k 2000/08/16 c:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
"cygwin1.dll" v0.0 ts=2000/8/12 11:21
Cygwin DLL version info:
dll major: 1001
dll minor: 5
dll epoch: 19
dll bad signal mask: 19005
dll old termios: 5
api major: 0
api minor: 28
shared data: 3
dll identifier: cygwin1
mount registry: 2
cygnus registry name: Cygnus Solutions
cygwin registry name: Cygwin
program options name: Program Options
cygwin mount registry name: mounts v2
build date: Sat Aug 12 11:21:38 EDT 2000
snapshot date: 2000-08-11-23:55-EST
shared id: cygwin1S3-2000-08-12 11:21
Use -h to see help about each section
*************************
The only substantial differences when I run cygcheck with the other
cygwin1.dll I tested are differences related to the DLL version:
*************************
277,278c277,278
< 643k 2000/08/16 c:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
< "cygwin1.dll" v0.0 ts=2000/8/12 11:21
---
> 568k 2000/07/27 c:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
> "cygwin1.dll" v0.0 ts=2000/7/27 10:59
281c281
< dll minor: 5
---
> dll minor: 3
286c286
< api minor: 28
---
> api minor: 24
294,296c294,295
< build date: Sat Aug 12 11:21:38 EDT 2000
< snapshot date: 2000-08-11-23:55-EST
< shared id: cygwin1S3-2000-08-12 11:21
---
> build date: Thu Jul 27 10:59:35 EDT 2000
> shared id: cygwin1S3
*************************
This is not a problem with Cygwin B20 when using a snapshot of
cygwin1.dll from 1999/9/30:
4169k 2000/05/02 c:\cygnus\CYGWIN~1\H-I586~1\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
"cygwin1.dll" v0.0 ts=1999/9/30 11:42
Any thoughts?
jik
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