I received two responses to my question. Unfortunately none definitive
sollution. I decided to ignore the message :-(.
*****
From: Oyanarte Portilho <portilho_at_helium.fis.unb.br>
-----
MOP is part of the DECNet package. You do not need a PAK to use it.
*****
*****
From: paul.ottaway_at_eurocontrol.be (Paul Ottaway)
-----
You can use ccr to access the terminal server from DU.
*****
*****
Original post:
-----
My configuration:
DEC 3000/600, DU V3.2 214, 64MB RAM
DECserver 90L+
MicroVAX II, MicroVMS V4.7 (OK, it's old but it's mine)
I'm writing a program to receive data from a MicroVAX's serial port,
attached to the DECServer90L+. I configured LAT on the 3000/600 to bind
the port to a specific lat device, adding the following line to
/etc/latstartup.conf:
/usr/sbin/latcp -A -p 623 -H DEC_SERVER_00 -R MVAX
DEC_SERVER_00 is the server's LAT name and MVAX is the port 7. No
problems in this phase.
I tried to test the port using C-Kemit and the result was a system crash.
Not bad for a simple user proccess, eh?
I wrote a program based on dial.c, a LAT programming example found in the
directory /usr/examples/lat. The program is running OK, but I still get
the message "ioctl() failed at command FIONBIO: Invalid argument". Here
is the code source:
main(argc,argv)
int argc;
char *argv[];
{
int flags, on = 1;
struct termios tty_termios;
struct sgttyb sgtty;
/*
* Open reverse LAT device.
*/
if ( (fd = open(argv[1],O_RDWR)) < 0 ) {
perror(argv[0]);
exit(1);
}
/*
* get current line attributes
*/
if ((tcgetattr(fd,&tty_termios) == -1)){
perror("tcgetattr() failed");
exit(1);
}
/*
* If CLOCAL happened not to be set, then set it. We need to
* be in "local" mode to talk to the modem".
*/
if ((tty_termios.c_cflag & CLOCAL) == 0) {
tty_termios.c_cflag |= CLOCAL;
if ((tcsetattr (fd, TCSANOW, &tty_termios) == -1)) {
perror("tcsetattr() failed at TCSANOW");
exit(1);
}
}
/*
* turn off O_NONBLOCK, we don't need it any more
*/
flags = fcntl (fd, F_GETFL);
if (flags == -1) {
perror("fcntl() failed at command F_GETFL");
exit(1);
}
if ((fcntl(fd, F_SETFL, flags & ~O_NONBLOCK) == -1)) {
perror("fcntl() failed at command F_SETFL");
exit(1);
}
/*
* give LAT time to establish session settings
*/
sleep(2);
/*
* Configura a porta para operacao no modo "transparente"
*/
if (ioctl(fd, TIOCGETP, &sgtty) < 0)
perror("ioctl() failed at command TIOCGETP");
sgtty.sg_flags |= RAW;
sgtty.sg_flags &= ~ECHO;
if (ioctl(fd, TIOCSETP, &sgtty) < 0)
perror("ioctl() failed at command TIOCSETP");
/***** HERE IS THE PROBLEM ********************************************/
if (ioctl(fd, FIONBIO, &on) < 0)
perror("ioctl() failed at command FIONBIO");
/**********************************************************************/
if ((tcgetattr(fd,&tty_termios) == -1))
perror("tcgetattr() failed");
if ((tty_termios.c_cflag & CLOCAL) != 0) {
tty_termios.c_cflag &= ~CLOCAL;
if ((tcsetattr (fd, TCSANOW, &tty_termios) == -1))
perror("tcsetattr() failed at TCSANOW");
}
/*
* Captura os sinais de interrupcao, para garantir a restauracao dos
* parametros da linha.
*/
signal(SIGHUP, resettty);
signal(SIGINT, resettty);
signal(SIGQUIT, resettty);
signal(SIGBUS, resettty);
signal(SIGSEGV, resettty);
rmv_handle();
close(fd);
fprintf(stderr,"\nrmvinput: recepcao concluida.\n\n");
}
Can I simply ignore the message, since the program is already running OK?
Side note: Is there any program which will allow to configure the
DECserver90L+ from DU (workstation console)? The only way I found was to
connect a PC with terminal emulator program to a port. The DECserver
owner's manual mention the use of MOP from ULTRIX and VMS but I did not
found MOP under DU.
TIA
I will post a summary, off course...
-----
Carlos A M dos Santos - Analista de Sistemas
Universidade Federal de Pelotas - Centro de Pesquisas Meteorologicas
Pelotas, RS, Brasil - e-mail: ufpelrm_at_eu.ansp.br
Received on Mon Jun 24 1996 - 20:57:05 NZST