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/*
* Copyright (c) 1992, 1993, 1996
* Berkeley Software Design, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Berkeley Software
* Design, Inc.
*
* THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Berkeley Software Design, Inc. BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* BSDI int17.c,v 2.2 1996/04/08 19:32:48 bostic Exp
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/uio.h>
#include <paths.h>
#include <signal.h>
#include <unistd.h>
#include "doscmd.h"
static int lpt_fd[4] = { -1, -1, -1, -1, };
static FILE *lpt_file[4] = { 0, 0, 0, 0};
static int direct[4] = { 0, 0, 0, 0};
static char *queue[4] = { 0, 0, 0, 0};
static int timeout[4] = { 30, 30, 30, 30 };
static int last_poll[4] = { 0, 0, 0, 0};
static int last_count[4] = { 0, 0, 0, 0};
static int current_count[4] = { 0, 0, 0, 0};
static void open_printer(int printer);
void
int17(regcontext_t *REGS)
{
int fd;
u_char c;
switch (R_AH) {
case 0x00:
reset_poll();
fd = lpt_fd[R_DX];
if (fd == -1) {
open_printer(R_DX);
fd = lpt_fd[R_DX];
}
if (fd >= 0) {
c = R_AL;
write(fd, &c, 1);
}
R_AH = 0x90; /* printed selected */
current_count[R_DX]++;
break;
case 0x01:
case 0x02:
R_AH = 0x90;
break;
default:
unknown_int2(0x17, R_AH, REGS);
break;
}
}
void
lpt_poll(void)
{
int i;
int current;
current = time(0);
for(i=0; i < 4; i++) {
if (lpt_fd[i] < 0)
continue;
if (current - last_poll[i] < timeout[i])
continue;
last_poll[i] = current;
if (last_count[i] == current_count[i]) {
if (direct[i]) {
debug(D_PRINTER, "Closing printer %d\n", i);
close(lpt_fd[i]);
} else {
debug(D_PRINTER, "Closing spool printer %d\n", i);
pclose(lpt_file[i]);
}
lpt_fd[i] = -1;
lpt_file[i] = 0;
}
last_count[i] = current_count[i];
}
}
static void
open_printer(int printer)
{
char printer_name[80];
char command[120];
int fd;
FILE *file;
char *p;
/*
* if printer is direct then open output device.
*/
if (direct[printer]) {
if ((p = queue[printer]) != 0) {
if ((fd = open(p, O_WRONLY|O_APPEND|O_CREAT, 0666)) < 0) {
perror(p);
return;
}
} else {
sprintf(printer_name, "%slpt%d", _PATH_DEV, printer);
debug(D_PRINTER, "Opening device %s\n", printer_name);
if ((fd = open(printer_name, O_WRONLY)) < 0) {
perror(printer_name);
return;
}
}
lpt_fd[printer] = fd;
return;
}
/*
* If printer is a spooled device then open pipe to spooled device
*/
if (queue[printer]) {
strncpy(printer_name, queue[printer], sizeof(printer_name));
printer_name[sizeof(printer_name) - 1] = '\0';
} else
strcpy(printer_name, "lp");
snprintf(command, sizeof(command), "lpr -P %s", printer_name);
debug(D_PRINTER, "opening pipe to %s\n", printer_name);
if ((file = popen(command, "w")) == 0) {
perror(command);
return;
}
lpt_file[printer] = file;
lpt_fd[printer] = fileno(file);
}
void
printer_direct(int printer)
{
direct[printer] = 1;
}
void
printer_spool(int printer, char *print_queue)
{
queue[printer] = print_queue ? strdup(print_queue) : 0;
}
void
printer_timeout(int printer, char *time_out)
{
if (atoi(time_out) <= 0) {
fprintf(stderr, "Bad timeout value on lpt%d:\n", printer+1);
quit(1);
}
timeout[printer] = atoi(time_out);
}
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