Extra CR or LF when pressing return at bash prompt

[Jason Anderson <Jason dot Anderson at pace dot co dot uk>]

Hello,

I'm relatively new to Cygwin so I apologise if this has been discussed before in a different guise, but I haven't been able to find a solution in the archives.

The following problem occurs when calling a standard Windows console application from within the cygwin bash shell, and does not seem to be a problem when calling "proper" Cygwin system tools.

The Windows application I'm trying to call prompts for various input data which it reads from stdin. From a DOS shell, this works well, but under Cygwin the first read from stdin is bypassed (as if the RETURN key was pressed) although the subsequent inputs work correctly.  It seems as if pressing the RETURN key sends two key presses (CR and LF presumably), but that the shell only consumes one of these to start the program from bash.  The other one is then used for the first input statement.

I can work around this by executing the command at the bash prompt by pressing CTRL-J rather than RETURN or CTRL-M.

Has anyone any ideas how to fix this properly, perhaps with a parameter to BASH or a change to "termcap".  I have tried CYGWIN=binmode and nobinmode with no luck, and I have tried setting CYGWIN=tty, but this does not work (nor was it expected to after reading the mailing list archive).

Any suggestions?

Thanks,

Jason Anderson

Output from cygcheck is:

Cygnus Win95/NT Configuration Diagnostics
Current System Time: Wed Oct 18 14:39:10 2000

Win95 Ver 4.0 build 67306684  B

Path:	/c/perl/bin
	/c/Program Files/GNU/WinCvs 1.1
	/usr/bin
	/usr/local/bin
	/c/NOVELL/CLIENT32
	/c/WINDOWS
	/c/WINDOWS/COMMAND
	/c/UTILS/UTILS
	/c/PERL/BIN/

SysDir: C:\WINDOWS\SYSTEM
WinDir: C:\WINDOWS

CYGWIN32 = `nobinmode'
CYGWIN = `nobinmode'
HOME = `/home/anders_j'
MAKE_MODE = `unix'
PWD = `/home/anders_j/tools/common'
USER = `anders_j'

!C: = `C:\cygwin\bin'
!Z: = `Z:\PUBLIC'
ASSET = `0184'
CMDLINE = `bash --login -i'
COMSPEC = `C:\4DOS601\4DOS.COM'
EDITOR = `vi'
HOSTNAME = `JASONANDERSON'
HOSTTYPE = `i586'
LANG = `en'
LANGUAGE = `english'
LC_ALL = `en_UK'
MACHTYPE = `i586-pc-cygwin'
NWLANGUAGE = `ENGLISH'
OLDPWD = `/home/anders_j/tools'
OSTYPE = `cygwin'
PROMPT = `$p$g'
PS1 = `\u:\w > '
SHELL = `/bin/sh'
SHLVL = `1'
ST20ROOT = `c:\stm\st20r1.7'
TEMP = `/c/temp'
TERM = `cygwin'
WINBOOTDIR = `C:\WINDOWS'
WINDIR = `C:\WINDOWS'
WINDOWS_LOGIN = `0'
_ = `/bin/cygcheck'
TZ = `GMTST0GMTDT-1,M3.5.0/2,M10.5.0/3'

Use `-r' to scan registry

a:  fd           N/A    N/A                    
c:  hd  FAT32   4110Mb  93% CP    UN           MINE
d:  cd  CDFS      11Mb 100% CP                 CPPBIBSC
f:  net OS2    36780Mb  98% CP          FC     TECHNICAL
g:  net OS2    41344Mb  91% CP          FC     TECHSHARE
h:  net OS2    41344Mb  91% CP          FC     TECHSHARE
j:  net OS2     6000Mb  83% CP          FC     APPS
s:  net OS2    41344Mb  91% CP          FC     TECHSHARE
u:  net NTFS    2047Mb   0% CP CS UN PA FC     Tcad
z:  net OS2     3000Mb  70% CP          FC     SYS

C:\cygwin\bin  /usr/bin  system  textmode
C:\cygwin\lib  /usr/lib  system  textmode
C:\cygwin  /        system  textmode
c:    /c       user    textmode

Found: C:\cygwin\bin\bash.exe
Found: c:\UTILS\UTILS\bash.exe
Warning: C:\cygwin\bin\bash.exe hides c:\UTILS\UTILS\bash.exe
Found: C:\cygwin\bin\cat.exe
Found: c:\UTILS\UTILS\cat.exe
Warning: C:\cygwin\bin\cat.exe hides c:\UTILS\UTILS\cat.exe
Found: C:\cygwin\bin\cpp.exe
Found: C:\cygwin\bin\find.exe
Found: c:\UTILS\UTILS\find.exe
Warning: C:\cygwin\bin\find.exe hides c:\UTILS\UTILS\find.exe
Found: C:\cygwin\bin\gcc.exe
Found: c:\UTILS\UTILS\gcc.exe
Warning: C:\cygwin\bin\gcc.exe hides c:\UTILS\UTILS\gcc.exe
Found: C:\cygwin\bin\gdb.exe
Found: c:\UTILS\UTILS\gdb.exe
Warning: C:\cygwin\bin\gdb.exe hides c:\UTILS\UTILS\gdb.exe
Found: C:\cygwin\bin\ld.exe
Found: c:\UTILS\UTILS\ld.exe
Warning: C:\cygwin\bin\ld.exe hides c:\UTILS\UTILS\ld.exe
Found: C:\cygwin\bin\ls.exe
Found: c:\UTILS\UTILS\ls.exe
Warning: C:\cygwin\bin\ls.exe hides c:\UTILS\UTILS\ls.exe
Found: z:\PUBLIC\ls.exe
Warning: C:\cygwin\bin\ls.exe hides z:\PUBLIC\ls.exe
Found: C:\cygwin\bin\make.exe
Found: c:\UTILS\UTILS\make.exe
Warning: C:\cygwin\bin\make.exe hides c:\UTILS\UTILS\make.exe
Found: C:\cygwin\bin\sh.exe
Found: c:\UTILS\UTILS\sh.exe
Warning: C:\cygwin\bin\sh.exe hides c:\UTILS\UTILS\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=2000/6/11 4:34
   35k 2000/06/11 C:\cygwin\bin\cygitk30.dll - os=4.0 img=1.0 sys=4.0
                  "cygitk30.dll" v0.0 ts=2000/6/11 4:34
  402k 2000/06/11 C:\cygwin\bin\cygtcl80.dll - os=4.0 img=1.0 sys=4.0
                  "cygtcl80.dll" v0.0 ts=2000/6/11 4:30
    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=2000/6/11 4:30
  639k 2000/06/11 C:\cygwin\bin\cygtk80.dll - os=4.0 img=1.0 sys=4.0
                  "cygtk80.dll" v0.0 ts=2000/6/11 4:34
  586k 2000/08/04 C:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
                  "cygwin1.dll" v0.0 ts=2000/8/4 1:53
    Cygwin DLL version info:
        dll major: 1001
        dll minor: 4
        dll epoch: 19
        dll bad signal mask: 19005
        dll old termios: 5
        api major: 0
        api minor: 26
        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: Thu Aug 3 20:53:46 EDT 2000
        CVS tag: cygwin-1-1-4
        shared id: cygwin1S3

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