The screen man page [3] describe how to attach to a existing tty device but the file is a named pipe so the program cannot do its magic with it.. I have to run two commands in order to get the PTY and attach to it (socat, then screen) Simple shell magic can't work because socat outputs the messages to stderr.
I decided to do some shell magic to automate the task in several steps Map the UNIX domain socket to a PTY Somehow, get the PTY name (the tricky part) Once the name is known, attach to the PTY Map the socket to a PTY Same as above, still the messages are output to stderr socat -d -d.. screen `socat -d -d /Thesis ttyS0 PTY 2>&1 | tee /tmp/x &>/dev/null & grep '.
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NO!!!, for some reason (still unknown to me) sed and grep got stuck and even if they got the apropriate input they didn't send anything to the screen.. Making it work altogether Since the device is dynamically allocated and the socat output may vary, this kind of magic can be done, yes it might also be done with an sed [10] or awk script [11], but there was 2 or 3 AM and I just made it work.. /Thesis ttyS0 PTY 2012/05/29 01:08:00 socat[29713] N opening connection to LEN=16 AF=1 ".. I also found a couple VMware forum posts with useful links [8] [9] Thanks to this I can happily run the following two commands to attach to the serial console % socat -d -d.. var q = 'virtualbox%20serial%20console%20socket'; When I use the serial port in Windows XP on a Linux host, I miss characters during receiving. unreal engine 3 mac herunterladen
I managed to solve the problem by redirecting the socat output to a file (which might also be a FIFO if you are interested), and then pointing grep to get the desired line and piping that output to sed to clean the text and get the desired PTY name.. There were some pages describing how to use socat [4] to map a UNIX domain socket to a tty device (actually a PTY) [5] [6] [7].. The serial port emulated for VirtualBox guests currently supports only one interface to the hosting system, which is a "UNIX domain" socket. Official Adobe Reader For Mac
Serial port params are 115K2 8N1 no flowcontrol I normally access a VirtualBox VM serial console through minicom in GNU/Linux, but for some reason it didn't worked on Mac OS X, so I researched about how can I access the serial console.. VirtualBox (and VMware for what I saw on the pages [1]) map the serial device of the virtual machine to a "Named Pipe" (actually a UNIX Domain Socket) which can be accessed using netcat or minicom.. It would be more convenient if instead, or in addition, VirtualBox supported listening on localhost:port, i.. e 127 0 0 1:789, where the port number is configurable similar to the current "pipe name" setting.. /Thesis ttyS0 PTY Get the PTY name The device name is printed to stderr and simply by doing a 2>&1 and pipe it through a sed or awk instance will do the trick.. I tried the nc -U variant as stated in the page but I had no luck making it work because the mac ports version of netcat does *not* support attaching to UNIX domain sockets [2].. /Thesis ttyS0" 2012/05/29 01:08:00 socat[29713] N successfully connected from local address LEN=16 AF=1 "" 2012/05/29 01:08:00 socat[29713] N successfully connected via 2012/05/29 01:08:00 socat[29713] N PTY is /dev/ttys007 2012/05/29 01:08:00 socat[29713] N starting data transfer loop with FDs [3,3] and [4,4] In this case the desired PTY is /dev/tty007 and then in another terminal window % screen /dev/ttys007 I wanted to do this as painful (automated) as possible, but there were a few problems: The PTY device allocated on Mac OS X is subject to the number of terminals currently being used, so it is a variable device.. *N\\ PTY\\ is\\ ' /tmp/x | sed -e 's/ *N\\ PTY\\ is\\ //g'` So the above line does the following: Map the socket Two choices here, I chose the first one because was faster but YMMV. 6e4e936fe3 Chrome Mac 10.5 Download
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