* Setting up lp for PC
@ 1996-01-08 20:17 Luther
0 siblings, 0 replies; 3+ messages in thread
From: Luther @ 1996-01-08 20:17 UTC (permalink / raw)
Thanks! And, boy, am I glad the solution didn't make me feel
bone/stick/stone stupid for not figuring it out for myself (e.g.,
setting up swap for my system took only changing two lines in termrc;
or installing the kernel by copying 9pcdisk to /dev/hd1boot). Plan 9
has done a marvelous job of keeping my ego in check. =;-)
On 8 Jan 96 at 9:31, G. David Butler wisely noted:
> This is how I added a postscript printer on serial port
> eia1 on a PC cpu server named cpu1.
>
> To drive a printer on the parallel port, a different
> approach is required since tcpostio requires feedback
> from the printer and the parallel interface is one way.
> Basically a lptsrv needs to be written that opens
> /dev/lpt1data write only and emulates the responses
> from tcpostio. A simpler approach would be to change
> the daemon side alltogether so it doesn't chat with
> the printer.
>
> Since I have a file server that does *NOT* have a WORM,
> I have all the cpus and terminals share the /sys/lib/lp
> directory and use the queue and tmp directories there.
> (In other words, no bootes "other" file system.)
>
> After these changes, one can print from the cpu console
> and any terminal or cpu window.
>
> I would like to have some feedback to the code in eiasrv.c.
> Did I do all the "proper" Plan 9 things?
>
> Enjoy.
>
> David Butler
> gdb@dbSystems.com
>
>
> ==================================================
> add to /sys/lib/lp/devices: (line broken for readability)
> ps Office cpu1 /srv/eia1 512 post+nohead generic
> generic generic generic tcppost FIFO
>
> ==================================================
> /sys/lib/lp/bin/lpsend.rc (/sys/src/cmd/lp/lpsend.rc):
> diff -e lpsend.rc.cdrom lpsend.rc
> 24,32c
> #if (test -e /net/dk/clone || import helix /net/dk) {
> # dialstring=`{ndb/query sys $1 dk}
> # network=dk
> # if (! ~ $dialstring '') {
> # if(lpsend $dialstring $network printer) exit ''
> # }
> # rv=$rv^', dk failed'
> #}
> #if not rv=$rv^', no dk'
> .
> 5c
> if (test -e /net/tcp/clone || import cpu1 /net/tcp) {
> .
>
> ==================================================
> /rc/bin/lp (/sys/src/cmd/lp/lp.rc):
> diff -e lp.rc.cdrom lp.rc
> 17,21c
> #if (! test -r /srv/bootes) srv -m bootes
> #if (! mount -c /srv/bootes /n/bootesother other || ! bind -a
> #/n/bootesother/lp /sys/lib/lp) { echo 'could not properly setup
> #LPSPOOL' >[1=2] exit 'LPSPOOL setup'
> #}
> .
>
> ==================================================
> /386/bin/aux/lpdaemon (/sys/src/cmd/lp/lpdaemon.c):
> diff -e lpdaemon.c.cdrom lpdaemon.c
> 423a
> ACK();
> .
> 153c
> return(fd);
> .
> 151d
> 146c
> close(fd);
> if((fd=open(tmpf, 2)) < 0) {
> .
> 141c
> if((fd=creat(tmpf, 0666)) < 0) {
> .
> 137,138c
> char tmpf[100];
> int fd;
> .
> 92a
> #else
> fputs(s1, fp);
> #endif
> .
> 91a
> #ifndef PLAN9
> .
> 90a
> #else
> vfprintf(fp, s1, ap);
> #endif
> .
> 89a
> #ifndef PLAN9
> .
> 79a
> #endif
> .
> 77a
> #ifndef PLAN9
> .
>
> ==================================================
> /386/bin/aux/tcpostio (/sys/src/cmd/postscript/tcpostio.l):
> diff -e tcpostio.l.cdrom tcpostio.l
> 412c
> fprint(2, ". %5.2f%% sent, %.100s\n",
> bytes_sent*100.0/bytes_to_send, statusbuf);
> .
> 283c
> blocksize = atoi(av);
> .
> 197c
> byte statusbuf[PRBUFSIZ];
> .
> 177c
> if (write(printerfd, "\004", 1) != 1) {
> .
> 162c
> if (write(printerfd, "\004", 1) != 1) {
> .
> 149c
> if (write(printerfd, "\024", 1) != 1) {
> .
> 123,124c
> if (*(ke = find(ks, ":")) == '\0') {
> return(PR_UNKNOWN);
> }
> kl = ke - ks;
> .
> 120a
> return(statuslist[i].val);
> .
> 117,118c
> break;
> .
> 103c
> vl = ve - vs;
> .
> 91,92c
> if (*(ke = find(ks, ":")) == '\0') {
> return(PR_UNKNOWN);
> }
> kl = ke - ks;
> .
> 59c
> { nil, PR_UNKNOWN }
> .
>
> ==================================================
> /386/bin/aux/eiasrv (/sys/src/cmd/aux/eiasrv.c):
> cat eiasrv.c
> /*
> * Copyright (c) 1996 G. David Butler
> * All Rights Reserved.
> *
> * Unrestricted use of this source is granted as long as
> * the above copyright remains.
> */
>
> #include <u.h>
> #include <libc.h>
>
> #define PRBUFSIZ 8192 /* from
> #/sys/src/cmd/postscript/tcpostio/tcpostio.h */
>
> char Srvfilename[256];
> int Childpid;
>
> /* remove the /srv entry and kill the child at exit */
> void
> cleanup(void)
> {
> remove(Srvfilename);
> postnote(PNPROC, Childpid, "kill");
> }
>
> /* on interrupt, if in the child writing to pipe, OK */
> /* else, cleanup and exit */
> int
> notehandler(void *, char *note) {
> static char *pipenote = "sys: write on closed pipe";
>
> if (strncmp(note, pipenote, sizeof(pipenote) - 1) == 0) {
> return 1;
> }
> cleanup();
> return 0;
> }
>
> void
> main(int argc, char *argv[])
> {
> int blocksize; /* see tcpostio.l about this */
> int baud; /* rate of the serial device */
> int outputfd; /* fd to serial device */
> int inputfd; /* fd from pipe on /srv */
> int pipefd[2];
> char buf[PRBUFSIZ];
>
> blocksize = PRBUFSIZ;
> baud = 9600; /* default rate */
>
> ARGBEGIN {
> case 'B':
> blocksize = atoi(ARGF());
> break;
> case 'b':
> baud = atoi(ARGF());
> break;
> default:
> fprint(2, "%s: badflag('%c')\n", argv0, ARGC());
> break;
> } ARGEND
>
> if (argc != 1 || baud == 0) {
> fprint(2, "Usage: %s [-B blocksize] [-b baud] device\n", argv0);
> exits("fatal");
> }
>
> if (blocksize < 1 || blocksize > PRBUFSIZ) {
> blocksize = PRBUFSIZ;
> }
>
> if ((outputfd = open(*argv, ORDWR)) < 0) {
> fprint(2, "%s: open of (%s) failed: %r\n", argv0, *argv);
> exits("fatal");
> }
>
> /* set the port up correctly for I/O */
> sprint(Srvfilename, "%sctl", *argv);
> if ((inputfd = open(Srvfilename, OWRITE)) < 0) {
> fprint(2, "%s: open of (%s) failed: %r\n", argv0, Srvfilename);
> exits("fatal");
> }
>
> sprint(buf, "b%d", baud);
> if (write(inputfd, buf, strlen(buf)) < 0 ||
> write(inputfd, "d1", 2) < 0 ||
> write(inputfd, "r1", 2) < 0 ||
> write(inputfd, "m1", 2) < 0 ||
> write(inputfd, "pn", 2) < 0 ||
> write(inputfd, "s1", 2) < 0 ||
> write(inputfd, "l8", 2) < 0) {
> fprint(2, "%s: write to (%s) failed: %r\n", argv0, Srvfilename);
> exits("fatal");
> }
> close(inputfd);
>
> /* this is the name of our "named pipe" */
> sprint(Srvfilename, "/srv%s", strrchr(*argv, '/'));
> if ((inputfd = create(Srvfilename, OWRITE, 0666)) < 0) {
> fprint(2, "%s: create of (%s) failed: %r\n", argv0, Srvfilename);
> exits("fatal");
> }
>
> atexit(cleanup);
>
> if (pipe(pipefd) < 0) {
> fprint(2, "%s: pipe failed: %r\n", argv0);
> exits("fatal");
> }
>
> sprint(buf, "%d", pipefd[0]);
> if (write (inputfd, buf, strlen(buf)) < 0) {
> fprint(2, "%s: write to (%s) failed: %r\n", argv0, Srvfilename);
> exits("fatal");
> }
>
> close(inputfd);
> close(pipefd[0]);
> inputfd = pipefd[1];
>
> atnotify(notehandler, 1);
>
> /* the parent and child can share */
> if (Childpid = rfork(RFPROC)) {
>
> while ((pipefd[0] = read(inputfd, buf, blocksize)) >= 0) {
> pipefd[1] = 0;
> while (pipefd[1] < pipefd[0]) {
> if ((baud = write(outputfd, buf, pipefd[0])) < 0) {
> fprint(2, "%s: parent write failed: %r\n", argv0);
> exits("fatal");
> }
> pipefd[1] += baud;
> }
> }
>
> if (pipefd[0] < 0) {
> fprint(2, "%s: parent read failed: %r\n", argv0);
> exits("fatal");
> } else {
> exits("");
> }
>
> } else {
>
> while ((pipefd[0] = read(outputfd, buf, blocksize)) >= 0) {
> pipefd[1] = 0;
> while (pipefd[1] < pipefd[0]) {
> if ((baud = write(inputfd, buf, pipefd[0])) < 0) {
> buf[0] = '\0';
> errstr(buf);
> if (strcmp(buf, "interrupted") == 0) {
> pipefd[1] = pipefd[0];
> continue;
> } else {
> fprint(2, "%s: child write failed: %s\n", argv0, buf);
> exits("fatal");
> }
> }
> pipefd[1] += baud;
> }
> }
>
> if (pipefd[0] < 0) {
> fprint(2, "%s: child read failed: %r\n", argv0);
> exits("fatal");
> } else {
> exits("");
> }
> }
> }
>
>
> ==================================================
> /sys/src/cmd/aux/mkfile:
> diff -e mkfile.cdrom mkfile
> 10a
> eiasrv\
> .
>
>
> ==================================================
> /rc/bin/cpurc:
> add a line to your cpu server bootup like:
> aux/eiasrv -b 38400 /dev/eia1 &
>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Setting up lp for PC
@ 1996-01-08 14:31 G.David
0 siblings, 0 replies; 3+ messages in thread
From: G.David @ 1996-01-08 14:31 UTC (permalink / raw)
This is how I added a postscript printer on serial port
eia1 on a PC cpu server named cpu1.
To drive a printer on the parallel port, a different
approach is required since tcpostio requires feedback
from the printer and the parallel interface is one way.
Basically a lptsrv needs to be written that opens
/dev/lpt1data write only and emulates the responses
from tcpostio. A simpler approach would be to change
the daemon side alltogether so it doesn't chat with
the printer.
Since I have a file server that does *NOT* have a WORM,
I have all the cpus and terminals share the /sys/lib/lp
directory and use the queue and tmp directories there.
(In other words, no bootes "other" file system.)
After these changes, one can print from the cpu console
and any terminal or cpu window.
I would like to have some feedback to the code in eiasrv.c.
Did I do all the "proper" Plan 9 things?
Enjoy.
David Butler
gdb@dbSystems.com
==================================================
add to /sys/lib/lp/devices: (line broken for readability)
ps Office cpu1 /srv/eia1 512 post+nohead generic
generic generic generic tcppost FIFO
==================================================
/sys/lib/lp/bin/lpsend.rc (/sys/src/cmd/lp/lpsend.rc):
diff -e lpsend.rc.cdrom lpsend.rc
24,32c
#if (test -e /net/dk/clone || import helix /net/dk) {
# dialstring=`{ndb/query sys $1 dk}
# network=dk
# if (! ~ $dialstring '') {
# if(lpsend $dialstring $network printer) exit ''
# }
# rv=$rv^', dk failed'
#}
#if not rv=$rv^', no dk'
.
5c
if (test -e /net/tcp/clone || import cpu1 /net/tcp) {
.
==================================================
/rc/bin/lp (/sys/src/cmd/lp/lp.rc):
diff -e lp.rc.cdrom lp.rc
17,21c
#if (! test -r /srv/bootes) srv -m bootes
#if (! mount -c /srv/bootes /n/bootesother other || ! bind -a /n/bootesother/lp /sys/lib/lp) {
# echo 'could not properly setup LPSPOOL' >[1=2]
# exit 'LPSPOOL setup'
#}
.
==================================================
/386/bin/aux/lpdaemon (/sys/src/cmd/lp/lpdaemon.c):
diff -e lpdaemon.c.cdrom lpdaemon.c
423a
ACK();
.
153c
return(fd);
.
151d
146c
close(fd);
if((fd=open(tmpf, 2)) < 0) {
.
141c
if((fd=creat(tmpf, 0666)) < 0) {
.
137,138c
char tmpf[100];
int fd;
.
92a
#else
fputs(s1, fp);
#endif
.
91a
#ifndef PLAN9
.
90a
#else
vfprintf(fp, s1, ap);
#endif
.
89a
#ifndef PLAN9
.
79a
#endif
.
77a
#ifndef PLAN9
.
==================================================
/386/bin/aux/tcpostio (/sys/src/cmd/postscript/tcpostio.l):
diff -e tcpostio.l.cdrom tcpostio.l
412c
fprint(2, ". %5.2f%% sent, %.100s\n", bytes_sent*100.0/bytes_to_send, statusbuf);
.
283c
blocksize = atoi(av);
.
197c
byte statusbuf[PRBUFSIZ];
.
177c
if (write(printerfd, "\004", 1) != 1) {
.
162c
if (write(printerfd, "\004", 1) != 1) {
.
149c
if (write(printerfd, "\024", 1) != 1) {
.
123,124c
if (*(ke = find(ks, ":")) == '\0') {
return(PR_UNKNOWN);
}
kl = ke - ks;
.
120a
return(statuslist[i].val);
.
117,118c
break;
.
103c
vl = ve - vs;
.
91,92c
if (*(ke = find(ks, ":")) == '\0') {
return(PR_UNKNOWN);
}
kl = ke - ks;
.
59c
{ nil, PR_UNKNOWN }
.
==================================================
/386/bin/aux/eiasrv (/sys/src/cmd/aux/eiasrv.c):
cat eiasrv.c
/*
* Copyright (c) 1996 G. David Butler
* All Rights Reserved.
*
* Unrestricted use of this source is granted as long as
* the above copyright remains.
*/
#include <u.h>
#include <libc.h>
#define PRBUFSIZ 8192 /* from /sys/src/cmd/postscript/tcpostio/tcpostio.h */
char Srvfilename[256];
int Childpid;
/* remove the /srv entry and kill the child at exit */
void
cleanup(void)
{
remove(Srvfilename);
postnote(PNPROC, Childpid, "kill");
}
/* on interrupt, if in the child writing to pipe, OK */
/* else, cleanup and exit */
int
notehandler(void *, char *note) {
static char *pipenote = "sys: write on closed pipe";
if (strncmp(note, pipenote, sizeof(pipenote) - 1) == 0) {
return 1;
}
cleanup();
return 0;
}
void
main(int argc, char *argv[])
{
int blocksize; /* see tcpostio.l about this */
int baud; /* rate of the serial device */
int outputfd; /* fd to serial device */
int inputfd; /* fd from pipe on /srv */
int pipefd[2];
char buf[PRBUFSIZ];
blocksize = PRBUFSIZ;
baud = 9600; /* default rate */
ARGBEGIN {
case 'B':
blocksize = atoi(ARGF());
break;
case 'b':
baud = atoi(ARGF());
break;
default:
fprint(2, "%s: badflag('%c')\n", argv0, ARGC());
break;
} ARGEND
if (argc != 1 || baud == 0) {
fprint(2, "Usage: %s [-B blocksize] [-b baud] device\n", argv0);
exits("fatal");
}
if (blocksize < 1 || blocksize > PRBUFSIZ) {
blocksize = PRBUFSIZ;
}
if ((outputfd = open(*argv, ORDWR)) < 0) {
fprint(2, "%s: open of (%s) failed: %r\n", argv0, *argv);
exits("fatal");
}
/* set the port up correctly for I/O */
sprint(Srvfilename, "%sctl", *argv);
if ((inputfd = open(Srvfilename, OWRITE)) < 0) {
fprint(2, "%s: open of (%s) failed: %r\n", argv0, Srvfilename);
exits("fatal");
}
sprint(buf, "b%d", baud);
if (write(inputfd, buf, strlen(buf)) < 0 ||
write(inputfd, "d1", 2) < 0 ||
write(inputfd, "r1", 2) < 0 ||
write(inputfd, "m1", 2) < 0 ||
write(inputfd, "pn", 2) < 0 ||
write(inputfd, "s1", 2) < 0 ||
write(inputfd, "l8", 2) < 0) {
fprint(2, "%s: write to (%s) failed: %r\n", argv0, Srvfilename);
exits("fatal");
}
close(inputfd);
/* this is the name of our "named pipe" */
sprint(Srvfilename, "/srv%s", strrchr(*argv, '/'));
if ((inputfd = create(Srvfilename, OWRITE, 0666)) < 0) {
fprint(2, "%s: create of (%s) failed: %r\n", argv0, Srvfilename);
exits("fatal");
}
atexit(cleanup);
if (pipe(pipefd) < 0) {
fprint(2, "%s: pipe failed: %r\n", argv0);
exits("fatal");
}
sprint(buf, "%d", pipefd[0]);
if (write (inputfd, buf, strlen(buf)) < 0) {
fprint(2, "%s: write to (%s) failed: %r\n", argv0, Srvfilename);
exits("fatal");
}
close(inputfd);
close(pipefd[0]);
inputfd = pipefd[1];
atnotify(notehandler, 1);
/* the parent and child can share */
if (Childpid = rfork(RFPROC)) {
while ((pipefd[0] = read(inputfd, buf, blocksize)) >= 0) {
pipefd[1] = 0;
while (pipefd[1] < pipefd[0]) {
if ((baud = write(outputfd, buf, pipefd[0])) < 0) {
fprint(2, "%s: parent write failed: %r\n", argv0);
exits("fatal");
}
pipefd[1] += baud;
}
}
if (pipefd[0] < 0) {
fprint(2, "%s: parent read failed: %r\n", argv0);
exits("fatal");
} else {
exits("");
}
} else {
while ((pipefd[0] = read(outputfd, buf, blocksize)) >= 0) {
pipefd[1] = 0;
while (pipefd[1] < pipefd[0]) {
if ((baud = write(inputfd, buf, pipefd[0])) < 0) {
buf[0] = '\0';
errstr(buf);
if (strcmp(buf, "interrupted") == 0) {
pipefd[1] = pipefd[0];
continue;
} else {
fprint(2, "%s: child write failed: %s\n", argv0, buf);
exits("fatal");
}
}
pipefd[1] += baud;
}
}
if (pipefd[0] < 0) {
fprint(2, "%s: child read failed: %r\n", argv0);
exits("fatal");
} else {
exits("");
}
}
}
==================================================
/sys/src/cmd/aux/mkfile:
diff -e mkfile.cdrom mkfile
10a
eiasrv\
.
==================================================
/rc/bin/cpurc:
add a line to your cpu server bootup like:
aux/eiasrv -b 38400 /dev/eia1 &
^ permalink raw reply [flat|nested] 3+ messages in thread
* Setting up lp for PC
@ 1996-01-07 4:00 Luther
0 siblings, 0 replies; 3+ messages in thread
From: Luther @ 1996-01-07 4:00 UTC (permalink / raw)
I'm trying to set up a PostScript printer on my standalone PC's lpt1.
attempting to print using 'lp' gives me the "could not properly set up
LPSPOOL" error because lp is attempting to mount a system named
"bootes".
I know that at least one thing that I need to do is modify
/sys/src/cmd/lp/lp.rc, particularly the references to "bootes". I
haven't been able to shake my "bootes" (apologies in advance to all)!
Can anyone give me some pointers? Are there other files that will
need modifying also that I may have missed?
Luther Huffman, Jr.
Strategic Computer Solutions, Inc.
^ permalink raw reply [flat|nested] 3+ messages in thread
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1996-01-08 20:17 Setting up lp for PC Luther
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1996-01-08 14:31 G.David
1996-01-07 4:00 Luther
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