How do you check if ph0 is set to DATA?

Charles A. Sefranek cals at cals01.NEWPORT.RI.US
Sat Sep 23 12:22:49 AEST 1989


In article <985 at utoday.UUCP> comeau at .UUCP (Greg Comeau) writes:
>In article <512 at cals01.NEWPORT.RI.US> cals at cals01.Newport.RI.US (Charles A. Sefranek) writes:
>>In article <4185 at ditka.UUCP> kls at ditka.UUCP (Karl Swartz) writes:
>>>...
>>>I was under the (possibly misguided) impression that due to
>>>software bugs ph0 didn't work very well as a data line. 
>>
>>Yup, you're misguided. I *only* use ph0, mostly as a DATA line.
>
>Care to elaborate on that?  I was tol many years ago by several AT&T
>people (I know that may not mean anything) that the ph0 harware was
>a bit freaky and that I should always use ph1.  ...

Well, I put my machine on line Oct 1987 and have been using only ph0
since then.  I have had problems, but the fix disk solved the un-
explained machine lock-ups.  The inode bug has bit me several times,
too, but hopefully the *next* fixdisk will solve that.  I have had NO
problems traceable to pho hardware.

Many people have asked for phstat, my shell script that I use to control
uucico transfers, and any other info I can give them.  Here it is ...

-----------cut here------------cut here----------cut here------------
#! /bin/sh
# This is a shell archive.  Remove anything before this line, then unpack
# it by saving it into a file and typing "sh file".  To overwrite existing
# files, type "sh file -c".  You can also feed this as standard input via
# unshar, or by typing "sh <file", e.g..  If this archive is complete, you
# will see the following message at the end:
#		"End of shell archive."
# Contents:  README phstat.c uusites.poll
# Wrapped by cals at cals01 on Fri Sep 22 22:02:56 1989
PATH=/bin:/usr/bin:/usr/ucb ; export PATH
if test -f README -a "${1}" != "-c" ; then 
  echo shar: Will not over-write existing file \"README\"
else
echo shar: Extracting \"README\" \(5451 characters\)
sed "s/^X//" >README <<'END_OF_README'
X===================================
X	phstat.c
X===================================
X
X	PHSTAT is called with the device descriptor of the phone
Xdevice whose status is desired, ie:
X
Xphstat /ph0
X
Xwill return the status of phone line 0.  The status is returned on
Xstandard output as a text string indicating the state as follows:
X
X	VOICE-IDLE	indicates line is idle in voice mode
X
X	VOICE-ACTIVE	indicates line is in voice mode with a
X			conversation in progress.
X
X	DATA		indicates line is data mode.
X
XCurrently phstat will not detect the RINGING condition as such.  I think
Xthis is returned as status VOICE-ACTIVE, but I'm not sure.
X
X	PHSTAT will return via an exit(1) if it is called improperly,
Xand with an exit(0) otherwise.
X
X	To compile phstat with shared libraries:
X
Xcc -c -ophstat phstat.c
Xld -o phstat phstat.o /lib/crt0s.o /lib/shlib.ifile
X
X	I installed phstat in /usr/local/bin/phstat with user bin,
Xgroup bin and permissions 755.
X
X===================================
X	uusites.poll
X===================================
X
X	This file is the shell script I use to initiate the uucp
Xconnection to my feed site.  There are two things you *HAVE* to
Xchange if you want to use this for yourself:
X
X	Change variable SITE to be the name of the site you are calling.
X	Change variable SITE1 to be the first 6 characters of SITE.
X
XI put this shell script in /usr/lib/uucp/uusites.poll with user uucp, 
Xgroup mail, and permissions 755. I modified my crontab file to run this in 
Xplace of the uudemon.hr script.  It is set up so I can also run it as 
Xan ordinary user for special occasions.
X
XMy system uses the standard ATT uucp (not HoneyDanBer), and I call my feed
Xsite to establish the connection.  I also contact only one site.  If you
Xwant to contact more than one site you will have to modify the script to
Xsuit your needs.
X
X	Several important things I have learned in setting this up:
X
X1) All uucp activity is logged on a file /usr/spool/uucp/LOGFILE.
X   The standard system setup manages this log file weekly so it
X   doesn't overflow your disk.  Keep an eye on this file regularly
X   to see what's going on with your uucp connection.  Many problems
X   will first show up here.
X
X2) If a uucico fails for any reason, it leaves a status file (named
X   STST<something> laying around in the /usr/spool/uucp directory.
X   The presence of this file will prevent uucico from attempting a
X   retry before some default time (usually 1 hour).  The script
X   removes all STST* files from the spool directory to allow a
X   shorter retry period.
X
X3) Before you change the state of the phone line, you *must* save
X   its current status.  This is required to decide what to do after
X   the uucico is completed.  Remember that a successful uucp
X   connection can run for hours!  Cron (or you) may invoke this
X   shell script *several times* during this time period.  You
X   don't want one of these redundant invocations to screw up
X   a perfectly good phone connection.  Uucico will properly
X   handle multiple invocations of itself, but it doesn't know or
X   care anything about the phone device.  YOU must handle that!
X
X4) The trap statement is in there to prevent normal things (like
X   logging out) from messing up a successful connection.  It 
X   probably isn't needed if you only run the script from cron,
X   but I like to be able to run it manually for debugging and
X   other special occasions (like a power failure right before
X   cron would normally run it!).  The trap protects me from
X   myself.
X
X5) The phtoggle program will properly check for all error
X   conditions regarding the phone line.  It won't try to control
X   it if it is being used by someone else, and it takes care of
X   all the lock files.  Unfortunately, if it does fail for an error
X   condition it doesn't seem to tell you in a way that can be
X   detected in the shell script.  It just leaves an error window
X   laying around on the console.  That's how I found out what 
X   situations my shell script wasn't handling properly.
X
X6) I now use a dummy poll file to detect whether or not the uucico 
X   transfer was successful.  This is an empty file named so uucico
X   thinks it is a queued up job waiting to be acted on.  When it
X   discovers the file is empty, it just skips it.  This isn't done,
X   however, until a complete connection has been successfully
X   established.  So, if you had a good connect, the poll file will
X   disappear.  If the connection failed (initially) the poll file
X   will still be around.  If the connection fails after it had
X   been successfully established, the poll file will also disappear
X   and the shell script will not retry.  This was done at the request
X   of my feed site, so they can effectively ignore me (by allowing
X   my login, turning the line around, then killing the connection)
X   if they have higher priority things to do and don't want my
X   machine repeatedly beating the door down trying to get in.
X   This shell script can be painfully persistent in trying to
X   establish a good connection otherwise!
X
XGood luck with this.  Please let me know if you find any flaws in
Xthe above or come across any other problems I haven't seen yet;
Xother than that, I make no guarantee or warranty whatsoever for this 
Xsoftware.  Use at your own risk and let the user beware!
X
X--
X Charlie Sefranek	cals at cals01.NEWPORT.RI.US
XUUCP: {rayssd,xanth,lazlo,mirror}!galaxia!cals01!cals
XAlt.: c4s at rayssdb.ray.com {sun,decuac,gatech,necntc,ukma}!rayssd!rayssdb!c4s
END_OF_README
if test 5451 -ne `wc -c <README`; then
    echo shar: \"README\" unpacked with wrong size!
fi
# end of overwriting check
fi
if test -f phstat.c -a "${1}" != "-c" ; then 
  echo shar: Will not over-write existing file \"phstat.c\"
else
echo shar: Extracting \"phstat.c\" \(936 characters\)
sed "s/^X//" >phstat.c <<'END_OF_phstat.c'
X/*
X *
X * phstat.c	A quick hack to get the status of the phone line so
X *		we can decide whether or not to toggle it.
X *
X *		At home, I have only one line, so when I leave for work
X *		I want my phone line set to DATA.  I run a shell script
X *		from cron at 7:00 AM, that goes something like this:
X *
X *
X *		Status=`/usr/lbin/phstat /dev/ph0`
X *
X *		if [ "$Status" = "VOICE" ] ; then
X *		  /usr/bin/phtoggle
X *		fi
X *
X *
X *		Robert Rodriguez  {inhp4|ptsfa}!pttesac!robert
X */
X
X#include	<sys/phone.h>
X#include	<fcntl.h>
X
Xmain( argc, argv )
X
Xint	argc;
Xchar	**argv;
X
X{
X    int			fd;
X    struct updata	phdata;
X
X    if ( argc != 2 )
X    {
X	printf( "Usage: phstat <device>\n" );
X	exit(1);
X    }
X    if ( (fd = open( argv[1], O_RDWR | O_NDELAY )) == -1 )
X	exit(1);
X    if ( (ioctl( fd, PIOCGETP, &phdata )) != 0 )
X	exit(1);
X    if ( phdata.c_lineparam & VOICE )
X	printf( "VOICE\n" );
X    else
X	printf( "DATA\n" );
X    close(fd);
X    exit(0);
X}
END_OF_phstat.c
if test 936 -ne `wc -c <phstat.c`; then
    echo shar: \"phstat.c\" unpacked with wrong size!
fi
# end of overwriting check
fi
if test -f uusites.poll -a "${1}" != "-c" ; then 
  echo shar: Will not over-write existing file \"uusites.poll\"
else
echo shar: Extracting \"uusites.poll\" \(3157 characters\)
sed "s/^X//" >uusites.poll <<'END_OF_uusites.poll'
X#--------------------------------------------------------------------------
X#
X#	Poll known sites for traffic
X#
X#--------------------------------------------------------------------------
X#
X# 27-Jun-88 Modified to only phtoggle if necessary.
X# 17-Aug-88 Modified to trap termination to insure DATA line goes back to
X#  VOICE after manual invocation and logout.
X# 20-Aug-88 Modified to use phstat to determine ACTIVE/IDLE status on
X#  VOICE line.
X# 08-Jan-89 Modified to repetitively retry uucico call if previous connection
X#  failed. Known problems with this implementation:
X#   After a LOST LINE condition, uustat returns status of the PREVIOUS con-
X#  versation.
X#   A successful connection that results in say a half hour conversation
X#  and then terminates abnormally will retry - it would be better to let
X#  it go until the next call instead of overrunning the time slot.
X# 28-Feb-89 Modified to use a null poll file instead of uustat call to 
X#  determine status of conversation after uucico call.
X# 27-Mar-89 Modified to check number of inodes and blocks before doing
X#  the uucico. Aborts and sends warning message to console and unix.log
X#  if either is too low.
X# 27-Apr-89 Removed debugging stuff used to test null poll file operation.
X#  Changed retry limit.
X#
X#	Charles A. Sefranek
X#	cals at cals01.NEWPORT.RI.US
X#--------------------------------------------------------------------------
XSITE=smwhere	# Change this to the site name you contact
XSITE1=smwher	# This is SITE truncated to 6 characters
XPATH=:/usr/lib/uucp:/bin:/usr/bin
XLOGFILE=/usr/spool/uucp/LOGFILE
XPOLLFILE=/usr/spool/uucp/C.${SITE1}AD0000
Xcd /usr/lib/uucp
Xlimit=12	# Max number of retries
Xretry=0
Xwtime=300	# Seconds to wait between retries
Xminblks=4000	# Min acceptable number of disk blocks
Xmininodes=400	# Min acceptable number of inodes
X#
X#	Find number of blocks and inodes for hard disk
X#
Xset `df | grep "\/dev\/fp002"`
X#
X#	Send warning to console and unix.log if inodes too low
X#
Xif [ $5 -lt $mininodes ]
Xthen 
X   echo  "uusites.poll: Abort - too few inodes \c" >/dev/error
X   echo "#uusites.poll: Abort - too few inodes \c" >/dev/error
X   exit 1
Xfi
X#
X#	Send warning to console and unix.log if disk blocks too low
X#
Xif [ $3 -lt $minblks ]
Xthen
X   echo  "uusites.poll: Abort - too few disk blocks \c" >/dev/error
X   echo "#uusites.poll: Abort - too few disk blocks \c" >/dev/error
X   exit 2
Xfi
Xwhile [ $retry -lt $limit ]
Xdo
X  rm -f /usr/spool/uucp/STST*
X  status=`/usr/local/bin/phstat /dev/ph0`
X  trap '' 1 2 3 9 15
X  #
X  # Only toggle if it is voice and it is idle
X  # VOICE-ACTIVE will be handled by uucico
X  #
X  if [ $status = 'VOICE-IDLE' ]
X  then phtoggle
X  fi
X  #
X  # Create dummy poll file here
X  #
X  cp /dev/null $POLLFILE
X  #
X  # Initiate the conversation
X  #
X  uucico -r1 -s${SITE}
X  #
X  # Don't change it if it wasn't toggled before !
X  #
X  if [ $status = 'VOICE-IDLE' ]
X  then phtoggle
X  fi
X  trap 1 2 3 9 15
X  #
X  # Check if a retry is needed
X  #
X  if test -f $POLLFILE
X  then 
X     #  Conversation failed - retry
X     retry=`expr $retry + 1`
X     sleep $wtime
X  else 
X     #  Conversation succeeded - force exit
X     retry=`expr $limit + 1`
X  fi
Xdone
Xuulog
END_OF_uusites.poll
if test 3157 -ne `wc -c <uusites.poll`; then
    echo shar: \"uusites.poll\" unpacked with wrong size!
fi
chmod +x uusites.poll
# end of overwriting check
fi
echo shar: End of shell archive.
exit 0

-- 

--
 Charlie Sefranek	cals at cals01.NEWPORT.RI.US
UUCP: {rayssd,xanth,lazlo,mirror}!galaxia!cals01!cals
Alt.: c4s at rayssdb.ray.com {sun,decuac,gatech,necntc,ukma}!rayssd!rayssdb!c4s



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