Use the files /dev/stdin and /dev/stdout On Thu, 2006-09-07 at 16:44 +0200, Thilo Riessner wrote: > Am Mittwoch, 6. September 2006 23:53 schrieben Sie: > > Thilo Riessner writes: > > > >From a program called by the welcome script which tries to access the > > > > serial > > > > > > port (in this case /dev/ttyI0) I get the errormessage: > > > Port or socket open error! > > > I guess, that the serial port is blocked by the pppd. > > > Is there any possibility to access the serial port nevertheless? > > > > You shouldn't be trying to access the port directly. Instead, when > > the "welcome" script runs, your script's standard input and standard > > output are connected directly to the tty. > > > > You should be able to use 'read' and 'echo' (or whatever your > > scripting language supports) without having to open anything. > > > > This is true for "connect", "disconnect", "init", and "pty" as well. > Thanks for your hint, but I have the problem, that the program (which is a > binary program) I am running out of my welcome script (which is a bash > script) does not support the usage of stdin and stdout, but it demands the > usage of a device for reading and writing. Is there a trick that I could use > in the welcome script to redirect stdin and stdout to a "device" and use > that device in the program, which is called from the welcome script. > - > To unsubscribe from this list: send the line "unsubscribe linux-ppp" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html - To unsubscribe from this list: send the line "unsubscribe linux-ppp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
