usr.sbin/lpr/lpd/key.c

   1 /*      $NetBSD: key.c,v 1.6 2003/08/07 11:25:27 agc Exp $      */
   2
   3 /*-
   4  * Copyright (c) 1991, 1993, 1994
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 #ifndef lint
  34 #if 0
  35 static char sccsid[] = "@(#)key.c       8.3 (Berkeley) 4/2/94";
  36 #else
  37 __RCSID("$NetBSD: key.c,v 1.6 2003/08/07 11:25:27 agc Exp $");
  38 #endif
  39 #endif /* not lint */
  40
  41 #include <sys/param.h>
  42 #include <sys/types.h>
  43
  44 #include <errno.h>
  45 #include <stdlib.h>
  46 #include <stdio.h>
  47 #include <string.h>
  48 #include <syslog.h>
  49 #include <dirent.h>
  50 #include <termios.h>
  51
  52 #include "lp.h"
  53 #include "extern.h"
  54
  55 __BEGIN_DECLS
  56 static int
  57         c_key(const void *, const void *);
  58 void    f_cbreak(struct info *);
  59 void    f_columns(struct info *);
  60 void    f_dec(struct info *);
  61 void    f_extproc(struct info *);
  62 void    f_ispeed(struct info *);
  63 void    f_nl(struct info *);
  64 void    f_ospeed(struct info *);
  65 void    f_raw(struct info *);
  66 void    f_rows(struct info *);
  67 void    f_sane(struct info *);
  68 void    f_tty(struct info *);
  69 __END_DECLS
  70
  71 static struct key {
  72         const char *name;                       /* name */
  73         void (*f)(struct info *);               /* function */
  74 #define F_NEEDARG       0x01                    /* needs an argument */
  75 #define F_OFFOK         0x02                    /* can turn off */
  76         int flags;
  77 } const keys[] = {
  78         { "cbreak",     f_cbreak,       F_OFFOK },
  79         { "cols",       f_columns,      F_NEEDARG },
  80         { "columns",    f_columns,      F_NEEDARG },
  81         { "cooked",     f_sane,         0 },
  82         { "dec",        f_dec,          0 },
  83         { "extproc",    f_extproc,      F_OFFOK },
  84         { "ispeed",     f_ispeed,       F_NEEDARG },
  85         { "new",        f_tty,          0 },
  86         { "nl",         f_nl,           F_OFFOK },
  87         { "old",        f_tty,          0 },
  88         { "ospeed",     f_ospeed,       F_NEEDARG },
  89         { "raw",        f_raw,          F_OFFOK },
  90         { "rows",       f_rows,         F_NEEDARG },
  91         { "sane",       f_sane,         0 },
  92         { "tty",        f_tty,          0 },
  93 };
  94
  95 static int
  96 c_key(const void *a, const void *b)
  97 {
  98
  99         return (strcmp(((const struct key *)a)->name,
 100             ((const struct key *)b)->name));
 101 }
 102
 103 int
 104 ksearch(char ***argvp, struct info *ip)
 105 {
 106         char *name;
 107         struct key *kp, tmp;
 108
 109         name = **argvp;
 110         if (*name == '-') {
 111                 ip->off = 1;
 112                 ++name;
 113         } else
 114                 ip->off = 0;
 115
 116         tmp.name = name;
 117         if (!(kp = (struct key *)bsearch(&tmp, keys,
 118             sizeof(keys)/sizeof(struct key), sizeof(struct key), c_key)))
 119                 return (0);
 120         if (!(kp->flags & F_OFFOK) && ip->off) {
 121                 syslog(LOG_INFO, "%s: illegal option: %s", printer, name);
 122                 return (1);
 123         }
 124         if (kp->flags & F_NEEDARG && !(ip->arg = *++*argvp)) {
 125                 syslog(LOG_INFO, "%s: option requires an argument: %s",
 126                        printer, name);
 127                 return (1);
 128         }
 129         kp->f(ip);
 130         return (1);
 131 }
 132
 133 void
 134 f_cbreak(struct info *ip)
 135 {
 136
 137         if (ip->off)
 138                 f_sane(ip);
 139         else {
 140                 ip->t.c_iflag |= BRKINT|IXON|IMAXBEL;
 141                 ip->t.c_oflag |= OPOST;
 142                 ip->t.c_lflag |= ISIG|IEXTEN;
 143                 ip->t.c_lflag &= ~ICANON;
 144                 ip->set = 1;
 145         }
 146 }
 147
 148 void
 149 f_columns(struct info *ip)
 150 {
 151
 152         ip->win.ws_col = atoi(ip->arg);
 153         ip->wset = 1;
 154 }
 155
 156 void
 157 f_dec(struct info *ip)
 158 {
 159
 160         ip->t.c_cc[VERASE] = (u_char)0177;
 161         ip->t.c_cc[VKILL] = CTRL('u');
 162         ip->t.c_cc[VINTR] = CTRL('c');
 163         ip->t.c_lflag &= ~ECHOPRT;
 164         ip->t.c_lflag |= ECHOE|ECHOKE|ECHOCTL;
 165         ip->t.c_iflag &= ~IXANY;
 166         ip->set = 1;
 167 }
 168
 169 void
 170 f_extproc(struct info *ip)
 171 {
 172
 173         if (ip->set) {
 174                 int tmp = 1;
 175                 (void)ioctl(ip->fd, TIOCEXT, &tmp);
 176         } else {
 177                 int tmp = 0;
 178                 (void)ioctl(ip->fd, TIOCEXT, &tmp);
 179         }
 180 }
 181
 182 void
 183 f_ispeed(struct info *ip)
 184 {
 185
 186         cfsetispeed(&ip->t, atoi(ip->arg));
 187         ip->set = 1;
 188 }
 189
 190 void
 191 f_nl(struct info *ip)
 192 {
 193
 194         if (ip->off) {
 195                 ip->t.c_iflag |= ICRNL;
 196                 ip->t.c_oflag |= ONLCR;
 197         } else {
 198                 ip->t.c_iflag &= ~ICRNL;
 199                 ip->t.c_oflag &= ~ONLCR;
 200         }
 201         ip->set = 1;
 202 }
 203
 204 void
 205 f_ospeed(struct info *ip)
 206 {
 207
 208         cfsetospeed(&ip->t, atoi(ip->arg));
 209         ip->set = 1;
 210 }
 211
 212 void
 213 f_raw(struct info *ip)
 214 {
 215
 216         if (ip->off)
 217                 f_sane(ip);
 218         else {
 219                 cfmakeraw(&ip->t);
 220                 ip->t.c_cflag &= ~(CSIZE|PARENB);
 221                 ip->t.c_cflag |= CS8;
 222                 ip->set = 1;
 223         }
 224 }
 225
 226 void
 227 f_rows(struct info *ip)
 228 {
 229
 230         ip->win.ws_row = atoi(ip->arg);
 231         ip->wset = 1;
 232 }
 233
 234 void
 235 f_sane(struct info *ip)
 236 {
 237
 238         ip->t.c_cflag = TTYDEF_CFLAG | (ip->t.c_cflag & (CLOCAL|CRTSCTS|CDTRCTS));
 239         ip->t.c_iflag = TTYDEF_IFLAG;
 240         ip->t.c_iflag |= ICRNL;
 241         /* preserve user-preference flags in lflag */
 242 #define LKEEP   (ECHOKE|ECHOE|ECHOK|ECHOPRT|ECHOCTL|ALTWERASE|TOSTOP|NOFLSH)
 243         ip->t.c_lflag = TTYDEF_LFLAG | (ip->t.c_lflag & LKEEP);
 244         ip->t.c_oflag = TTYDEF_OFLAG;
 245         ip->set = 1;
 246 }
 247
 248 void
 249 f_tty(struct info *ip)
 250 {
 251         int tmp;
 252
 253         tmp = TTYDISC;
 254         if (ioctl(0, TIOCSETD, &tmp) < 0)
 255                 syslog(LOG_ERR, "%s: ioctl(TIOCSETD): %m", printer);
 256 }