>From: lenny@icus.UUCP (Lenny Tropiano) Newsgroups: comp.sys.att,unix-pc.sources Subject: What does phtoggle really do... (was Re: Voice --> Data) Date: 9 Aug 88 04:24:19 GMT In article <300@amanue.UUCP> jr@amanue.UUCP (Jim Rosenberg) writes: |>In article <618@gvgspd.GVG.TEK.COM> mrk@gvgspd.GVG.TEK.COM (Michael R. Kesti) writes: |>>Can someone tell us how to switch from voice to data (and vice versa) |>>from other than UA? |> |>You need to get phtoggle. Do I remember correctly that this is public domain |>& was posted to unix-pc.sources? phtoggle & phdial really are *very* simple programs. Most of the work is done by the phone manager itself (/etc/ph). The method used in communicating with the phone manager is to place commands in the file /usr/lib/ua/phnum, and then send the signal 17 (SIGUSR2) to the pid of the ph process (ie. /usr/lib/ua/phpid). For those who care on how this is done, I've included my implementation of the phtoggle program [ NOTE: the executable is the same size as the /usr/bin/phtoggle -- Pretty good reverse engineering :-) ] There are noted bugs using the message(3T) calls to put the error messages on the screen. message(3T) is supposed to create a window first and then use it. I don't see it creating a window, therefore if you do get an error you will need something like "windy" to restore your window size... For those binary hackers: Look in the string table of /etc/ph for valid commands for /usr/lib/ua/phnum... eg. Dial %s -- Dial a phone number (used by phdial) Line -- Switch lines Newdir -- Pull up the directory/call screen Login -- tell the phone manager you logged in Logout -- conversely tell them you logged out Logname -- tell the phone manager you are working with Logname's phone stuff. Syntax for the phnum file with 'Logname' Logname login-id home-directory eg. Logname lenny /u/lenny There seems to be a little security problem (what else is new...) with phstub. It doesn't do any sanity checking making sure you aren't trying to get someone else's phone info. I guess that's what you get from s-bit'd programs... Try this: $ phstub someone-else /u/someone-else's-directory Someone should rewrite phstub (before I do) to check to make sure you are the user who is requesting the information (unless you are "root", maybe). --- snip here --- --- snip here --- --- snip here --- --- snip 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 'Makefile' <<'END_OF_FILE' X# Makefile for phtoggle implementation. X# By Lenny Tropiano (lenny@icus.UUCP) X# (c)1988 ICUS Software Systems X XCFLAGS = -v -O XLDFLAGS = -s XBINDIR = /usr/lbin XSHAREDLIB = /lib/crt0s.o /lib/shlib.ifile X Xphtoggle: phtoggle.o X ld $(LDFLAGS) -o phtoggle phtoggle.o $(SHAREDLIB) X Xinstall: phtoggle X chown root phtoggle X chgrp root phtoggle X chmod 4755 phtoggle X mv phtoggle $(BINDIR) END_OF_FILE if test 394 -ne `wc -c <'Makefile'`; then echo shar: \"'Makefile'\" unpacked with wrong size! fi # end of 'Makefile' fi if test -f 'phtoggle.c' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'phtoggle.c'\" else echo shar: Extracting \"'phtoggle.c'\" \(3253 characters\) sed "s/^X//" >'phtoggle.c' <<'END_OF_FILE' X/************************************************************************\ X** ** X** Program name: phtoggle.c (Toggle phone line) ** X** Programmer: Lenny Tropiano UUCP: ...icus!lenny ** X** Organization: ICUS Software Systems ** X** Date: August 8, 1988 ** X** ** X************************************************************************** X** ** X** Program use: ** X** ** X** This program is the source code (not derived from AT&T source) but ** X** reverse engineered from binary of /usr/bin/phtoggle. This will ** X** tell the phone manager to toggle the lines. ** X** ** X************************************************************************** X** ** X** Caveats: ** X** ** X** I believe this program will only be functional under release 3.51 ** X** of the UNIX PC operating system. It needs to send certain commands ** X** to the /etc/ph (phone manager process) via the a file and then send ** X** a signal to wake up the process. It may run under 3.5, but I don't ** X** have a machine running it. I doubt it will work under 3.0 at all. ** X** ** X************************************************************************** X** ** X** Permission is granted to copy, redistribute and modify without any ** X** explicit contact with the author, as long as, the above header ** X** remains intact. Any bugs, revisions, modifications or updates ** X** should be sent to the author so that he can keep future enhancements ** X** up to date. ** X** ** X\************************************************************************/ X X#include X#include X#include X#include X#include X Xmain() X{ X int phpid; /* process id of the /etc/ph process */ X FILE *pidfp, *numfp; X X winit(); X if ((pidfp = fopen("/usr/lib/ua/phpid", "r")) != NULL) { X if (fscanf(pidfp, "%d", &phpid) != NULL) { X if ((numfp = fopen("/usr/lib/ua/phnum", "w")) != NULL) { X fprintf(numfp, "Line"); X fclose(numfp); X kill(phpid, SIGUSR2); X } else X message(MT_ERROR, (char *) NULL, (char *) NULL, X "Error communicating with Phone Manager"); X } X fclose(pidfp); X } else X message(MT_ERROR, (char *) NULL, (char *) NULL, X "Error Obtaining Phone Manager Process ID"); X wexit(0); X} END_OF_FILE if test 3253 -ne `wc -c <'phtoggle.c'`; then echo shar: \"'phtoggle.c'\" unpacked with wrong size! fi # end of 'phtoggle.c' fi echo shar: End of shell archive. exit 0 -- Paper-net: Lenny Tropiano | @-net: lenny@icus.UUCP ICUS Software Systems | !-net: ...sbcs \ PO Box 1 | boulder \ Islip Terrace, NY 11752 | talcott !icus!lenny Vocal-net: (516) 582-5525 [work] | pacbell / (516) 968-8576 [home] | hombre / Telex-net: 154232428 ICUS | Another-net: attmail!icus!lenny