perry@sbcs.UUCP (Perry Kivolowitz) (10/04/83)
From perry Tue Oct 4 15:51:38 1983 remote from steinmetz
Date: 4 Oct 1983 15:48-EST
From: Perry S. Kivolowitz <perry@steinmetz-SBCS-VLSI-vax>
Subject: None
To: sbcs!perry
#
# makefile for the Perry's Printer Deamon
#
# perry s kivolowitz
#
# Possible entries in DEFINES:
#
# SPOOLDIR - MUST BE PRESENT - full name of spool directory
# DEBUG - OPTIONAL - set to get debugging lines.
# CONSOLE - OPTIONAL - set to get ghost story on sys console.
# SLEEPY_TIME - OPTIONAL - set to a number to redefine sleep time.
#
#
DEFINES = -DSPOOLDIR=\"/usr/spool/ppdir\"
CFLAGS = -O
ppdemon : printer.o
cc -o ppdeamon printer.o
printer.o: printer.c
cc $(DEFINES) $(CFLAGS) -c printer.c
ppq : ppq.csh
cp ppq.csh ppq
chmod 711 ppq
ppr : ppr.csh
cp ppr.csh ppr
chmod 711 ppr
------------------------------------------------------------------
ppr is a shell script which registers files for printing
------------------------------------------------------------------
#
# P P R - P e r r y ' s P r i n t e r
#
# Permission is hereby granted for unlimited distribution for
# non-commercial use only.
#
# Perry S. Kivolowitz
# allegra!sbcs!perry
# philabs!sbcs!perry
# (516) 467 - 3176
#
# MUST PLACE SPOOL DIRECTORY ON YOUR MACHINE IN THE CP AND CHMOD
# STATEMENTS!!!
#
if ($1 == "") then
echo Usage: ppr filelist
exit(1)
endif
foreach file ($*)
if (! -e $file ) then
echo ${file}: does not exist
continue
endif
if ((${file:e} == out) || ($file == core)) then
echo "${file}: shouldn't print object files"
continue
endif
cp $file /usr/spool/ppdir/$$.$file
chmod 600 /usr/spool/ppdir/$$.$file
end
-----------------------------------------------------------------
ppq is a shell script which prints the queue - Change the heading
-----------------------------------------------------------------
#
# P P Q - P e r r y ' s P r i n t e r Q u e u e (printer)
#
#
# Permission is hereby granted for unlimited distribution for
# non-commercial use only.
#
# Perry S. Kivolowitz
# allegra!sbcs!perry
# philabs!sbcs!perry
# (516) 467 - 3176
#
# MUST SET sd TO SPOOL DIRECTORY ON YOUR MACHINE!
#
set sd = /usr/spool/ppdir
echo "Undergraduate Laboratory Printer Queue"
set n = `ls -1 $sd | wc -l`
if ($n == "0") then
echo " Printer Queue Empty"
exit
endif
echo -n "Owner Size Created File"
ls -ltr $sd | colrm 1 13
-----------------------------------------------------------------
ppdeamon is the c program which does all the printing etc.
-----------------------------------------------------------------
/*
** Perry's Printer Deamon
** (or is it ppdaemon?)
**
** Perry S. Kivolowitz
** allegra!sbcs!perry
** philabs!sbcs!perry
** (516) 467 - 3176
**
** Permission is hereby granted for unlimited distribution for
** NON-COMERCIAL purposes.
**
** the routine ``pprint'' is what needs to be modifed to suit
** the specific needs of the site.
**
** A really nice thing about this arrangement is that the queue
** dump program - eg tpq or ipq - is replaced by ls -lr of the
** spool directory since the files are always printed oldest
** first.
**
** Also, this deamon occupies little space and little cpu
** resources.
**
** DEFINES:
**
** SPOOLDIR - directory in which files to be printed will be
** placed.
** SLEEPY_TIME
** - if set, will redefing the number of seconds the
** daemon will sleep after clearing out the spool
** directory.
** CONSOLE - if set, will tell the system console why we
** gave up the ghost.
** DEBUG - yeah.
**
*/
#include <stdio.h>
#include <sys/types.h>
#include <dir.h>
#include <sys/stat.h>
#include <whoami.h>
#include <sgtty.h>
#include <pwd.h>
#define VAX
struct passwd *getpwuid();
struct dir temp; /* place to read directory entries */
struct stat statbuf; /* place to perform stat on files */
int sdir; /* fd for spool directory */
int interval = 30; /* sleeping time between passes */
#define BSIZE 512
struct {
char name[DIRSIZ];
time_t mtime;
} oldest;
#ifdef VAX
#define PRINTER_LINE "/dev/tty15" /* name of printer */
int pfd; /* printer file descriptor */
FILE *pfp , *fdopen(); /* printer file stream */
struct sgttyb ttybuf;
#endif
main()
{
int i;
#ifdef SLEEPY_TIME
interval = SLEEPY_TIME;
#endif
#ifdef VAX
if ((pfd = open(PRINTER_LINE , 1)) < 0) fatal("Can't open printer");
gtty(pfd , &ttybuf);
ttybuf.sg_ispeed = ttybuf.sg_ospeed = B9600;
ttybuf.sg_erase = ttybuf.sg_kill = 0;
ttybuf.sg_flags = CRMOD | XTABS | ANYP;
stty(pfd , &ttybuf);
pfp = fdopen(pfd , "w");
#endif
if (access(SPOOLDIR , 4))
fatal("Can't access spool directory");
if (chdir(SPOOLDIR))
fatal("Can't cd to spool directory");
top:
oldest.mtime = ~(1 << 31);
if ((sdir = open("." , 0)) < 0)
fatal("Can't open spool directory");
while (read(sdir , &temp , sizeof(struct dir)) > 0) {
if (temp.d_ino == 0) continue;
if (temp.d_name[0] == '.') continue;
if (stat(temp.d_name , &statbuf))
fatal("Couldn't take status of a spooled file");
if (statbuf.st_mtime < oldest.mtime) {
oldest.mtime = statbuf.st_mtime;
for (i = 0; i < DIRSIZ; i++)
oldest.name[i] = temp.d_name[i];
}
}
close(sdir);
if (oldest.mtime != ~(1 << 31)) {
stat(oldest.name , &statbuf); /* re-stat file to be printed */
pprint(oldest.name);
goto top;
}
#ifdef DEBUG
printf("Sleeping - done everything in directory\n");
#endif
sleep(interval);
goto top;
}
fatal(s)
char *s;
{
FILE *fp;
fprintf(stderr,"Make sure your T.A. sees the following message\n");
fflush(stderr);
perror(s);
#ifdef CONSOLE
if ((fp = fopen("/dev/console" , "w")) != NULL) {
#else
fp = stdout;
#endif
fprintf(fp,"Ppdemon failed: %s\n" , s);
#ifdef CONSOLE
}
fclose(fp);
#endif
exit(1);
}
pprint(name)
char *name;
{
#ifdef VAX
int fd;
char c[BSIZE];
int i;
banner();
fd = open(name , 0);
while ((i = read(fd,c,BSIZE)) == BSIZE) write(pfd,c,BSIZE);
write(pfd , c , i);
close(fd);
#endif
unlink(name);
}
#ifdef VAX
char form_feed = '\f';
char new_line = '\n';
char carr_rtn = '\r';
#define ff() write(pfd , &form_feed , 1)
struct passwd *ps;
/*
** banner - print a banner page
**
** USES INFO LEFT IN STATBUF - hence the second call to stat on
** the file which will actually be printed.
**
*/
banner()
{
int i , j;
long t;
ff();
ps = getpwuid(statbuf.st_uid);
fflush(pfp);
fprintf(pfp , "machine name: %s\n" , sysname);
fprintf(pfp , "user name: %s\n" , ps->pw_name);
fprintf(pfp , "file creation time: %s" , ctime(&statbuf.st_ctime));
time(&t);
fprintf(pfp , "current time: %s" , ctime(&t));
fflush(pfp);
ff();
}
#endif
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