/* $OpenBSD: lp_stty.c,v 1.1 2018/04/27 16:14:36 eric Exp $ */
/*
* Adapted from the following files in src/usr.sbin/lpr/lpd:
*
* extern.h,v 1.9 2015/09/29 02:37:29
* key.c,v 1.8 2015/01/16 06:40:18
* modes.c,v 1.8 2015/01/16 06:40:18
* printjob.c,v 1.58 2016/11/22 16:03:57
*/
static const char *printer;
/*-
*
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1991, 1993, 1994
* The Regents of the University of California. 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. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
*/
#include <sys/types.h>
#include <sys/ioctl.h>
#include <errno.h>
#include <signal.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <dirent.h>
#include <limits.h>
#include <termios.h>
#include "lp.h"
#include "log.h"
/*
* from extern.h
*/
struct info {
int fd; /* file descriptor */
int ldisc; /* line discipline */
int off; /* turn off */
int set; /* need set */
int wset; /* need window set */
char *arg; /* argument */
struct termios t; /* terminal info */
struct winsize win; /* window info */
};
/*
* from key.c
*/
static int c_key(const void *, const void *);
static void f_cbreak(struct info *);
static void f_columns(struct info *);
static void f_dec(struct info *);
static void f_extproc(struct info *);
static void f_ispeed(struct info *);
static void f_nl(struct info *);
static void f_ospeed(struct info *);
static void f_raw(struct info *);
static void f_rows(struct info *);
static void f_sane(struct info *);
static void f_tty(struct info *);
static struct key {
char *name; /* name */
void (*f)(struct info *); /* function */
#define F_NEEDARG 0x01 /* needs an argument */
#define F_OFFOK 0x02 /* can turn off */
int flags;
} const keys[] = {
{ "cbreak", f_cbreak, F_OFFOK },
{ "cols", f_columns, F_NEEDARG },
{ "columns", f_columns, F_NEEDARG },
{ "cooked", f_sane, 0 },
{ "dec", f_dec, 0 },
{ "extproc", f_extproc, F_OFFOK },
{ "ispeed", f_ispeed, F_NEEDARG },
{ "new", f_tty, 0 },
{ "nl", f_nl, F_OFFOK },
{ "old", f_tty, 0 },
{ "ospeed", f_ospeed, F_NEEDARG },
{ "raw", f_raw, F_OFFOK },
{ "rows", f_rows, F_NEEDARG },
{ "sane", f_sane, 0 },
{ "tty", f_tty, 0 },
};
static int
c_key(const void *a, const void *b)
{
return (strcmp(((const struct key *)a)->name,
((const struct key *)b)->name));
}
static int
ksearch(char ***argvp, struct info *ip)
{
char *name;
struct key *kp, tmp;
name = **argvp;
if (*name == '-') {
ip->off = 1;
++name;
} else
ip->off = 0;
tmp.name = name;
if (!(kp = (struct key *)bsearch(&tmp, keys,
sizeof(keys)/sizeof(struct key), sizeof(struct key), c_key)))
return (0);
if (!(kp->flags & F_OFFOK) && ip->off) {
log_warnx("%s: illegal option: %s", printer, name);
return (1);
}
if (kp->flags & F_NEEDARG && !(ip->arg = *++*argvp)) {
log_warnx("%s: option requires an argument: %s", printer, name);
return (1);
}
kp->f(ip);
return (1);
}
static void
f_cbreak(struct info *ip)
{
if (ip->off)
f_sane(ip);
else {
ip->t.c_iflag |= BRKINT|IXON|IMAXBEL;
ip->t.c_oflag |= OPOST;
ip->t.c_lflag |= ISIG|IEXTEN;
ip->t.c_lflag &= ~ICANON;
ip->set = 1;
}
}
static void
f_columns(struct info *ip)
{
ip->win.ws_col = atoi(ip->arg);
ip->wset = 1;
}
static void
f_dec(struct info *ip)
{
ip->t.c_cc[VERASE] = (u_char)0177;
ip->t.c_cc[VKILL] = CTRL('u');
ip->t.c_cc[VINTR] = CTRL('c');
ip->t.c_lflag &= ~ECHOPRT;
ip->t.c_lflag |= ECHOE|ECHOKE|ECHOCTL;
ip->t.c_iflag &= ~IXANY;
ip->set = 1;
}
static void
f_extproc(struct info *ip)
{
if (ip->set) {
int tmp = 1;
(void)ioctl(ip->fd, TIOCEXT, &tmp);
} else {
int tmp = 0;
(void)ioctl(ip->fd, TIOCEXT, &tmp);
}
}
static void
f_ispeed(struct info *ip)
{
cfsetispeed(&ip->t, atoi(ip->arg));
ip->set = 1;
}
static void
f_nl(struct info *ip)
{
if (ip->off) {
ip->t.c_iflag |= ICRNL;
ip->t.c_oflag |= ONLCR;
} else {
ip->t.c_iflag &= ~ICRNL;
ip->t.c_oflag &= ~ONLCR;
}
ip->set = 1;
}
static void
f_ospeed(struct info *ip)
{
cfsetospeed(&ip->t, atoi(ip->arg));
ip->set = 1;
}
static void
f_raw(struct info *ip)
{
if (ip->off)
f_sane(ip);
else {
cfmakeraw(&ip->t);
ip->t.c_cflag &= ~(CSIZE|PARENB);
ip->t.c_cflag |= CS8;
ip->set = 1;
}
}
static void
f_rows(struct info *ip)
{
ip->win.ws_row = atoi(ip->arg);
ip->wset = 1;
}
static void
f_sane(struct info *ip)
{
ip->t.c_cflag = TTYDEF_CFLAG | (ip->t.c_cflag & (CLOCAL|CRTSCTS));
ip->t.c_iflag = TTYDEF_IFLAG;
ip->t.c_iflag |= ICRNL;
/* preserve user-preference flags in lflag */
#define LKEEP (ECHOKE|ECHOE|ECHOK|ECHOPRT|ECHOCTL|ALTWERASE|TOSTOP|NOFLSH)
ip->t.c_lflag = TTYDEF_LFLAG | (ip->t.c_lflag & LKEEP);
ip->t.c_oflag = TTYDEF_OFLAG;
ip->set = 1;
}
static void
f_tty(struct info *ip)
{
int tmp;
tmp = TTYDISC;
if (ioctl(0, TIOCSETD, &tmp) == -1)
log_warn("%s: ioctl(TIOCSETD)", printer);
}
/*
* from key.c
*/
struct modes {
char *name;
long set;
long unset;
};
/*
* The code in optlist() depends on minus options following regular
* options, i.e. "foo" must immediately precede "-foo".
*/
const struct modes cmodes[] = {
{ "cs5", CS5, CSIZE },
{ "cs6", CS6, CSIZE },
{ "cs7", CS7, CSIZE },
{ "cs8", CS8, CSIZE },
{ "cstopb", CSTOPB, 0 },
{ "-cstopb", 0, CSTOPB },
{ "cread", CREAD, 0 },
{ "-cread", 0, CREAD },
{ "parenb", PARENB, 0 },
{ "-parenb", 0, PARENB },
{ "parodd", PARODD, 0 },
{ "-parodd", 0, PARODD },
{ "parity", PARENB | CS7, PARODD | CSIZE },
{ "-parity", CS8, PARODD | PARENB | CSIZE },
{ "evenp", PARENB | CS7, PARODD | CSIZE },
{ "-evenp", CS8, PARODD | PARENB | CSIZE },
{ "oddp", PARENB | CS7 | PARODD, CSIZE },
{ "-oddp", CS8, PARODD | PARENB | CSIZE },
{ "pass8", CS8, PARODD | PARENB | CSIZE },
{ "-pass8", PARENB | CS7, PARODD | CSIZE },
{ "hupcl", HUPCL, 0 },
{ "-hupcl", 0, HUPCL },
{ "hup", HUPCL, 0 },
{ "-hup", 0, HUPCL },
{ "clocal", CLOCAL, 0 },
{ "-clocal", 0, CLOCAL },
{ "crtscts", CRTSCTS, 0 },
{ "-crtscts", 0, CRTSCTS },
{ "mdmbuf", MDMBUF, 0 },
{ "-mdmbuf", 0, MDMBUF },
{ NULL },
};
const struct modes imodes[] = {
{ "ignbrk", IGNBRK, 0 },
{ "-ignbrk", 0, IGNBRK },
{ "brkint", BRKINT, 0 },
{ "-brkint", 0, BRKINT },
{ "ignpar", IGNPAR, 0 },
{ "-ignpar", 0, IGNPAR },
{ "parmrk", PARMRK, 0 },
{ "-parmrk", 0, PARMRK },
{ "inpck", INPCK, 0 },
{ "-inpck", 0, INPCK },
{ "istrip", ISTRIP, 0 },
{ "-istrip", 0, ISTRIP },
{ "inlcr", INLCR, 0 },
{ "-inlcr", 0, INLCR },
{ "igncr", IGNCR, 0 },
{ "-igncr", 0, IGNCR },
{ "icrnl", ICRNL, 0 },
{ "-icrnl", 0, ICRNL },
{ "iuclc", IUCLC, 0 },
{ "-iuclc", 0, IUCLC },
{ "ixon", IXON, 0 },
{ "-ixon", 0, IXON },
{ "flow", IXON, 0 },
{ "-flow", 0, IXON },
{ "ixoff", IXOFF, 0 },
{ "-ixoff", 0, IXOFF },
{ "tandem", IXOFF, 0 },
{ "-tandem", 0, IXOFF },
{ "ixany", IXANY, 0 },
{ "-ixany", 0, IXANY },
{ "decctlq", 0, IXANY },
{ "-decctlq", IXANY, 0 },
{ "imaxbel", IMAXBEL, 0 },
{ "-imaxbel", 0, IMAXBEL },
{ NULL },
};
const struct modes lmodes[] = {
{ "echo", ECHO, 0 },
{ "-echo", 0, ECHO },
{ "echoe", ECHOE, 0 },
{ "-echoe", 0, ECHOE },
{ "crterase", ECHOE, 0 },
{ "-crterase", 0, ECHOE },
{ "crtbs", ECHOE, 0 }, /* crtbs not supported, close enough */
{ "-crtbs", 0, ECHOE },
{ "echok", ECHOK, 0 },
{ "-echok", 0, ECHOK },
{ "echoke", ECHOKE, 0 },
{ "-echoke", 0, ECHOKE },
{ "crtkill", ECHOKE, 0 },
{ "-crtkill", 0, ECHOKE },
{ "altwerase", ALTWERASE, 0 },
{ "-altwerase", 0, ALTWERASE },
{ "iexten", IEXTEN, 0 },
{ "-iexten", 0, IEXTEN },
{ "echonl", ECHONL, 0 },
{ "-echonl", 0, ECHONL },
{ "echoctl", ECHOCTL, 0 },
{ "-echoctl", 0, ECHOCTL },
{ "ctlecho", ECHOCTL, 0 },
{ "-ctlecho", 0, ECHOCTL },
{ "echoprt", ECHOPRT, 0 },
{ "-echoprt", 0, ECHOPRT },
{ "prterase", ECHOPRT, 0 },
{ "-prterase", 0, ECHOPRT },
{ "isig", ISIG, 0 },
{ "-isig", 0, ISIG },
{ "icanon", ICANON, 0 },
{ "-icanon", 0, ICANON },
{ "noflsh", NOFLSH, 0 },
{ "-noflsh", 0, NOFLSH },
{ "tostop", TOSTOP, 0 },
{ "-tostop", 0, TOSTOP },
{ "flusho", FLUSHO, 0 },
{ "-flusho", 0, FLUSHO },
{ "pendin", PENDIN, 0 },
{ "-pendin", 0, PENDIN },
{ "crt", ECHOE|ECHOKE|ECHOCTL, ECHOK|ECHOPRT },
{ "-crt", ECHOK, ECHOE|ECHOKE|ECHOCTL },
{ "newcrt", ECHOE|ECHOKE|ECHOCTL, ECHOK|ECHOPRT },
{ "-newcrt", ECHOK, ECHOE|ECHOKE|ECHOCTL },
{ "nokerninfo", NOKERNINFO, 0 },
{ "-nokerninfo",0, NOKERNINFO },
{ "kerninfo", 0, NOKERNINFO },
{ "-kerninfo", NOKERNINFO, 0 },
{ "xcase", XCASE, 0 },
{ "-xcase", 0, XCASE },
{ NULL },
};
const struct modes omodes[] = {
{ "opost", OPOST, 0 },
{ "-opost", 0, OPOST },
{ "litout", 0, OPOST },
{ "-litout", OPOST, 0 },
{ "ocrnl", OCRNL, 0 },
{ "-ocrnl", 0, OCRNL },
{ "olcuc", OLCUC, 0 },
{ "-olcuc", 0, OLCUC },
{ "onlcr", ONLCR, 0 },
{ "-onlcr", 0, ONLCR },
{ "onlret", ONLRET, 0 },
{ "-onlret", 0, ONLRET },
{ "onocr", ONOCR, 0 },
{ "-onocr", 0, ONOCR },
{ "tabs", 0, OXTABS }, /* "preserve" tabs */
{ "-tabs", OXTABS, 0 },
{ "oxtabs", OXTABS, 0 },
{ "-oxtabs", 0, OXTABS },
{ NULL },
};
#define CHK(s) (*name == s[0] && !strcmp(name, s))
static int
msearch(char ***argvp, struct info *ip)
{
const struct modes *mp;
char *name;
name = **argvp;
for (mp = cmodes; mp->name; ++mp)
if (CHK(mp->name)) {
ip->t.c_cflag &= ~mp->unset;
ip->t.c_cflag |= mp->set;
ip->set = 1;
return (1);
}
for (mp = imodes; mp->name; ++mp)
if (CHK(mp->name)) {
ip->t.c_iflag &= ~mp->unset;
ip->t.c_iflag |= mp->set;
ip->set = 1;
return (1);
}
for (mp = lmodes; mp->name; ++mp)
if (CHK(mp->name)) {
ip->t.c_lflag &= ~mp->unset;
ip->t.c_lflag |= mp->set;
ip->set = 1;
return (1);
}
for (mp = omodes; mp->name; ++mp)
if (CHK(mp->name)) {
ip->t.c_oflag &= ~mp->unset;
ip->t.c_oflag |= mp->set;
ip->set = 1;
return (1);
}
return (0);
}
/*
* from prinjob.c
*/
void
lp_stty(struct lp_printer *lp, int fd)
{
struct info i;
char **argv, **ap, **ep, *p, *val;
printer = lp->lp_name;
i.fd = fd;
i.set = i.wset = 0;
if (ioctl(i.fd, TIOCEXCL, (char *)0) == -1)
fatal("%s: ioctl(TIOCEXCL)", printer);
if (tcgetattr(i.fd, &i.t) == -1)
fatal("%s: tcgetattr", printer);
if (lp->lp_br > 0) {
cfsetspeed(&i.t, lp->lp_br);
i.set = 1;
}
if (lp->lp_ms) {
if (ioctl(i.fd, TIOCGETD, &i.ldisc) == -1)
fatal("%s: ioctl(TIOCGETD)", printer);
if (ioctl(i.fd, TIOCGWINSZ, &i.win) == -1)
log_warn("%s: ioctl(TIOCGWINSZ)", printer);
argv = calloc(256, sizeof(char *));
if (argv == NULL)
fatal("%s: malloc", printer);
p = strdup(lp->lp_ms);
ap = argv;
ep = argv + 255;
while ((val = strsep(&p, " \t,")) != NULL) {
if ((*ap++ = strdup(val)) == NULL)
fatal("%s: strdup", printer);
if (ap == ep)
fatal("%s: too many \"ms\" entries", printer);
}
*ap = NULL;
for (; *argv; ++argv) {
if (ksearch(&argv, &i))
continue;
if (msearch(&argv, &i))
continue;
log_warnx("%s: unknown stty flag: %s", printer, *argv);
}
}
if (i.set && tcsetattr(i.fd, TCSANOW, &i.t) == -1)
fatal("%s: tcsetattr", printer);
if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) == -1)
log_warn("%s: ioctl(TIOCSWINSZ)", printer);
}
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