This is the mail archive of the
cygwin@sources.redhat.com
mailing list for the Cygwin project.
serial terminal
- To: cygwin at sources dot redhat dot com
- Subject: serial terminal
- From: Baurjan Ismagulov <ibr at gantek dot com>
- Date: Sun, 4 Feb 2001 04:11:31 +0200
Hi,
I've got an HP 700/60 serial terminal connected to COM2. I want to be able to start a shell there. I couldn't see getty in the distribution, so I've tried to run bash with stdin and stdout set to COM2.
I wrote a program replacing standard descriptors with a serial device one (it was somewhat difficult to figure out that the port is accessible via /dev/com2; long live mailing list archives):
#include <sys/fcntl.h>
int main(int argc, char **argv) {
int fd = open("/dev/com2", O_RDWR);
close(0); close(1);
dup(fd); dup(fd);
execlp("/bin/bash", "/bin/bash", NULL);
}
Basically, it works: commands are taken from the terminal, and output from most commands is sent there. But the output is pretty broken (e.g., newline's are displayed as LF, causing stair-stepping), bash prompt is displayed on the console, command line isn't displayed anywhere, using less freezes the session. Tweaking with "stty onlcr" and similar stuff didn't give any results ("stty -a" output suggests that these options are ignored).
I want to have a reasonably usable terminal (at least bash and less), any ideas where to look?
BTW, prompts of Win32 console applications (such as Oracle sqlplus, F-Secure ssh) are displayed twice, as if an Enter is stuffed at startup, and the program displays a second prompt. why?
I'm using cygwin-1.1.6-1 (setup.exe 2.29, downloaded on Dec 25, 2000 from yggdrasil.com, full install, no updates) on Win98 SE.
*Any* help would be greatly appreciated.
Thanks in advance,
Baurjan.
P.S. I also tried "bash <com2 >com2" and "bash >com2 <com2", which resulted in "permission denied" error, seemingly due to exclusive open of the serial port. "bash 1>&0 <com2" and "bash 0<&1 >com2" replaced only stdin and stdout, respectively, leaving the console as the other descriptor. "bash <com2 1>&0" and "bash >com2 0<&1" produced more strange results.
I wrote a simple Win32 program trying to set standard handles to a handle obtained via CreateFile("COM2", ...) and executing bash afterwards. SetStdHandle failed with ERROR_INVALID_HANDLE :( .
"cygcheck -s -v -r" output:
Cygnus Win95/NT Configuration Diagnostics
Current System Time: Sun Feb 4 04:07:25 2001
Win9X Ver 4.10 build 67766446 A
Path: /usr/local/bin
/usr/local/sbin
/usr/local/bin
/usr/bin
/bin
/cygdrive/c/OPT/ORACLE0/JRE/1.1.7/BIN
/cygdrive/c/OPT/ORACLE0/BIN
/cygdrive/c/WINDOWS
/cygdrive/c/WINDOWS/COMMAND
/cygdrive/c/UTIL/NC/VC5
/cygdrive/c/UTIL/NC/VIEW/HIEW
/cygdrive/c/UTIL/NC/VIEW
/cygdrive/c/UTIL/NC/MC
/cygdrive/c/UTIL/BIN
/cygdrive/c/UTIL/NU
/cygdrive/c/UTIL/ARC
/cygdrive/c/UTIL/ME
/cygdrive/c/UTIL/MISC
/cygdrive/c/UTIL/DISK
/cygdrive/c/UTIL/VIDEO
/cygdrive/c/UTIL/DRV/NLS/RU
/cygdrive/c/UTIL/LINUX
/cygdrive/c/UTIL/LINUX/DOSEMU
/cygdrive/c/UTIL/WIN
/cygdrive/c/PROGRA~1/BORLAND/CBUILD~2/BIN
/cygdrive/c/PROGRA~1/BORLAND/CBUILD~2/PROJECTS/BPL
/cygdrive/c/PROGRA~1/DATAFE~1/F-SECURE/SSH2TR~1/PROGRAM
/cygdrive/c/OPT/LYNX
/cygdrive/c/OPT/GNAT/BIN
/cygdrive/c/OPT/JDK118/BIN
/cygdrive/c/OPT/BC31/BIN
/cygdrive/c/OPTBC5/BIN
/cygdrive/c/OPT/SOURCER6
/cygdrive/c/TMP/IBR/PRG/FLASH
/cygdrive/c/PROGRA~1/BORLAND/VBROKER/BIN
/cygdrive/c/PROGRA~1/BORLAND/VBROKER/JRE/BIN
/cygdrive/c/PROGRA~1/BORLAND/DELPHI5/BIN
/cygdrive/c/PROGRA~1/BORLAND/DELPHI5/PROJECTS/BPL
/BORLAND/CBUILD~1/BIN
/cygdrive/c/PROGRA~1/BORLAND/CBUILD~2/BIN
/cygdrive/c/PROGRA~1/BORLAND/CBUILD~2/PROJECTS/BPL
SysDir: C:\WINDOWS\SYSTEM
WinDir: C:\WINDOWS
PWD = `/cygdrive/c/tmp/ibr'
USER = `ibr'
MAKE_MODE = `unix'
HOME = `/cygdrive/c/tmp/ibr'
PROMPT = `$p$g'
COMSPEC = `C:\COMMAND.COM'
!C: = `C:\opt\cygwin\bin'
CMDLINE = `bash --login -i'
HOSTNAME = `ALATAU'
!D: = `D:\public_html\book\ANEKDOTY\FEINMAN'
LS_OPTIONS = `-bF --color=tty'
WINDIR = `C:\WINDOWS'
WINBOOTDIR = `C:\WINDOWS'
PS1 = `\u@\h:\w\$ '
BLASTER = `A220 I5 D1 H1 REC3 T6 P330'
I = `c:\tmp\ibr'
MACHTYPE = `i686-pc-cygwin'
OLDPWD = `/usr/bin'
TEMP = `/cygdrive/c/WINDOWS/TEMP'
SHLVL = `1'
VBROKERDIR = `C:\PROGRA~1\BORLAND\VBROKER'
SHELL = `/bin/bash'
HOSTTYPE = `i686'
OSTYPE = `cygwin'
TERM = `cygwin'
_ = `/usr/bin/cygcheck'
TZ = `GTBST-2GTBDT-3,M3.5.0/2,M10.5.0/3'
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu\&Programs\Products\Cygnus Solutions
(default) = (unsupported type)
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu\&Programs\Cygnus Solutions
(default) = (unsupported type)
HKEY_CURRENT_USER\Software\Cygnus Solutions
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) = `\\.\tape1:'
unix = `/dev/st1'
fbinary = 0x00000000
fsilent = 0x00000001
fmixed = 0x00000000
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\01
(default) = `\\.\tape0:'
unix = `/dev/st0'
fmixed = 0x00000000
fbinary = 0x00000000
fsilent = 0x00000001
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\02
(default) = `\\.\b:'
unix = `/dev/fd1'
fmixed = 0x00000000
fbinary = 0x00000000
fsilent = 0x00000001
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\03
(default) = `\\.\a:'
unix = `/dev/fd0'
fmixed = 0x00000000
fbinary = 0x00000000
fsilent = 0x00000001
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\04
(default) = `C:'
unix = `/'
fmixed = 0x00000000
fbinary = 0x00000000
fsilent = 0x00000000
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2
(default) = `/cygdrive'
cygdrive flags = 0x00000022
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\Program Options
HKEY_LOCAL_MACHINE\Software\Cygnus Solutions
HKEY_LOCAL_MACHINE\Software\Cygnus Solutions\GNUPro
HKEY_LOCAL_MACHINE\Software\Cygnus Solutions\GNUPro\i586-cygwin32
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\Cygwin
HKEY_LOCAL_MACHINE\Software\Cygnus Solutions\Cygwin\mounts v2
HKEY_LOCAL_MACHINE\Software\Cygnus Solutions\Cygwin\mounts v2\/
(default) = `C:/opt/cygwin'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\Software\Cygnus Solutions\Cygwin\mounts v2\/usr/bin
(default) = `C:/opt/cygwin/bin'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\Software\Cygnus Solutions\Cygwin\mounts v2\/usr/lib
(default) = `C:/opt/cygwin/lib'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\Software\Cygnus Solutions\Cygwin\Program Options
a: fd N/A N/A
c: hd FAT32 4392Mb 72% CP UN
d: cd N/A N/A
C:\opt\cygwin\bin /usr/bin system binmode
C:\opt\cygwin\lib /usr/lib system binmode
C:\opt\cygwin / system binmode
Found: C:\opt\cygwin\bin\bash.exe
Found: c:\UTIL\BIN\bash.exe
Warning: C:\opt\cygwin\bin\bash.exe hides c:\UTIL\BIN\bash.exe
Found: C:\opt\cygwin\bin\cat.exe
Found: c:\UTIL\BIN\cat.exe
Warning: C:\opt\cygwin\bin\cat.exe hides c:\UTIL\BIN\cat.exe
Found: C:\opt\cygwin\bin\cpp.exe
Found: c:\OPT\BC31\BIN\cpp.exe
Warning: C:\opt\cygwin\bin\cpp.exe hides c:\OPT\BC31\BIN\cpp.exe
Found: C:\opt\cygwin\bin\find.exe
Found: c:\WINDOWS\COMMAND\find.exe
Warning: C:\opt\cygwin\bin\find.exe hides c:\WINDOWS\COMMAND\find.exe
Found: c:\UTIL\BIN\find.exe
Warning: C:\opt\cygwin\bin\find.exe hides c:\UTIL\BIN\find.exe
Found: C:\opt\cygwin\bin\gcc.exe
Found: C:\opt\cygwin\bin\gdb.exe
Found: C:\opt\cygwin\bin\ld.exe
Found: C:\opt\cygwin\bin\ls.exe
Found: C:\opt\cygwin\bin\make.exe
Found: c:\PROGRA~1\BORLAND\CBUILD~2\BIN\make.exe
Warning: C:\opt\cygwin\bin\make.exe hides c:\PROGRA~1\BORLAND\CBUILD~2\BIN\make.exe
Found: c:\OPT\BC31\BIN\make.exe
Warning: C:\opt\cygwin\bin\make.exe hides c:\OPT\BC31\BIN\make.exe
Found: c:\PROGRA~1\BORLAND\DELPHI5\BIN\make.exe
Warning: C:\opt\cygwin\bin\make.exe hides c:\PROGRA~1\BORLAND\DELPHI5\BIN\make.exe
Found: C:\opt\cygwin\bin\sh.exe
56k 2000/12/03 C:\opt\cygwin\bin\cygbz21.0.dll - os=4.0 img=1.0 sys=4.0
"cygbz21.0.dll" v0.0 ts=2000/11/21 1:53
81k 2000/12/05 C:\opt\cygwin\bin\cygitcl30.dll - os=4.0 img=1.0 sys=4.0
"cygitcl30.dll" v0.0 ts=2000/11/26 3:43
35k 2000/12/05 C:\opt\cygwin\bin\cygitk30.dll - os=4.0 img=1.0 sys=4.0
"cygitk30.dll" v0.0 ts=2000/11/26 3:43
390k 2000/12/05 C:\opt\cygwin\bin\cygtcl80.dll - os=4.0 img=1.0 sys=4.0
"cygtcl80.dll" v0.0 ts=2000/11/26 3:39
5k 2000/12/05 C:\opt\cygwin\bin\cygtclpip80.dll - os=4.0 img=1.0 sys=4.0
10k 2000/12/05 C:\opt\cygwin\bin\cygtclreg80.dll - os=4.0 img=1.0 sys=4.0
"cygtclreg80.dll" v0.0 ts=2000/11/26 3:39
623k 2000/12/05 C:\opt\cygwin\bin\cygtk80.dll - os=4.0 img=1.0 sys=4.0
"cygtk80.dll" v0.0 ts=2000/11/26 3:43
18k 2000/10/23 C:\opt\cygwin\bin\cyggdbm.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm.dll" v0.0 ts=2000/10/23 5:26
14k 2000/10/23 C:\opt\cygwin\bin\cygintl.dll - os=4.0 img=1.0 sys=4.0
"cygintl.dll" v0.0 ts=2000/10/23 22:02
45k 2000/10/22 C:\opt\cygwin\bin\cygjbig1.dll - os=4.0 img=1.0 sys=4.0
"cygjbig1.dll" v0.0 ts=2000/10/23 2:06
119k 2000/10/23 C:\opt\cygwin\bin\cygjpeg6b.dll - os=4.0 img=1.0 sys=4.0
"cygjpeg6b.dll" v0.0 ts=2000/10/23 3:58
162k 2000/10/23 C:\opt\cygwin\bin\cygpng2.dll - os=4.0 img=1.0 sys=4.0
"cygpng2.dll" v0.0 ts=2000/10/23 3:40
83k 2000/11/25 C:\opt\cygwin\bin\cygform5.dll - os=4.0 img=1.0 sys=4.0
"cygform5.dll" v0.0 ts=2000/11/25 7:42
53k 2000/11/25 C:\opt\cygwin\bin\cygmenu5.dll - os=4.0 img=1.0 sys=4.0
"cygmenu5.dll" v0.0 ts=2000/11/25 7:42
300k 2000/11/25 C:\opt\cygwin\bin\cygncurses5.dll - os=4.0 img=1.0 sys=4.0
"cygncurses5.dll" v0.0 ts=2000/11/25 7:40
35k 2000/11/25 C:\opt\cygwin\bin\cygpanel5.dll - os=4.0 img=1.0 sys=4.0
"cygpanel5.dll" v0.0 ts=2000/11/25 7:41
17k 2000/11/30 C:\opt\cygwin\bin\cyghistory4.dll - os=4.0 img=1.0 sys=4.0
"cyghistory4.dll" v0.0 ts=2000/11/30 4:28
108k 2000/11/30 C:\opt\cygwin\bin\cygreadline4.dll - os=4.0 img=1.0 sys=4.0
"cygreadline4.dll" v0.0 ts=2000/11/30 4:28
243k 2000/10/23 C:\opt\cygwin\bin\cygtiff3.dll - os=4.0 img=1.0 sys=4.0
"cygtiff3.dll" v0.0 ts=2000/10/23 4:14
41k 2000/11/20 C:\opt\cygwin\bin\cygXpm-noX4.dll - os=4.0 img=1.0 sys=4.0
"cygXpm-noX4.dll" v0.0 ts=2000/11/20 4:41
45k 2000/11/20 C:\opt\cygwin\bin\cygXpm-X4.dll - os=4.0 img=1.0 sys=4.0
"cygXpm-X4.dll" v0.0 ts=2000/11/20 4:45
49k 2000/10/23 C:\opt\cygwin\bin\cygz.dll - os=4.0 img=1.0 sys=4.0
"cygz.dll" v0.0 ts=2000/10/23 3:22
609k 2000/11/22 C:\opt\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
"cygwin1.dll" v0.0 ts=2000/11/22 4:00
Cygwin DLL version info:
dll major: 1001
dll minor: 6
dll epoch: 19
dll bad signal mask: 19005
dll old termios: 5
dll malloc env: 28
api major: 0
api minor: 30
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
cygdrive flags: cygdrive flags
cygdrive prefix: cygdrive prefix
cygdrive default prefix:
build date: Tue Nov 21 21:00:16 EST 2000
shared id: cygwin1S3
Use -h to see help about each section
--
Want to unsubscribe from this list?
Check out: http://cygwin.com/ml/#unsubscribe-simple