1 /*- 2 * Copyright (c) 1991, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 #if 0 36 static char sccsid[] = "@(#)key.c 8.3 (Berkeley) 4/2/94"; 37 #else 38 static const char rcsid[] = 39 "$Id: key.c,v 1.9 1997/08/24 00:26:12 steve Exp $"; 40 #endif 41 #endif /* not lint */ 42 43 #include <sys/types.h> 44 45 #include <err.h> 46 #include <errno.h> 47 #include <stdlib.h> 48 #include <stdio.h> 49 #include <string.h> 50 51 #include "stty.h" 52 #include "extern.h" 53 54 __BEGIN_DECLS 55 void f_all __P((struct info *)); 56 void f_cbreak __P((struct info *)); 57 void f_columns __P((struct info *)); 58 void f_dec __P((struct info *)); 59 void f_everything __P((struct info *)); 60 void f_extproc __P((struct info *)); 61 void f_ispeed __P((struct info *)); 62 void f_nl __P((struct info *)); 63 void f_ospeed __P((struct info *)); 64 void f_raw __P((struct info *)); 65 void f_rows __P((struct info *)); 66 void f_sane __P((struct info *)); 67 void f_size __P((struct info *)); 68 void f_speed __P((struct info *)); 69 void f_tty __P((struct info *)); 70 __END_DECLS 71 72 static struct key { 73 char *name; /* name */ 74 void (*f) __P((struct info *)); /* function */ 75 #define F_NEEDARG 0x01 /* needs an argument */ 76 #define F_OFFOK 0x02 /* can turn off */ 77 int flags; 78 } keys[] = { 79 { "all", f_all, 0 }, 80 { "cbreak", f_cbreak, F_OFFOK }, 81 { "cols", f_columns, F_NEEDARG }, 82 { "columns", f_columns, F_NEEDARG }, 83 { "cooked", f_sane, 0 }, 84 { "dec", f_dec, 0 }, 85 { "everything", f_everything, 0 }, 86 { "extproc", f_extproc, F_OFFOK }, 87 { "ispeed", f_ispeed, F_NEEDARG }, 88 { "new", f_tty, 0 }, 89 { "nl", f_nl, F_OFFOK }, 90 { "old", f_tty, 0 }, 91 { "ospeed", f_ospeed, F_NEEDARG }, 92 { "raw", f_raw, F_OFFOK }, 93 { "rows", f_rows, F_NEEDARG }, 94 { "sane", f_sane, 0 }, 95 { "size", f_size, 0 }, 96 { "speed", f_speed, 0 }, 97 { "tty", f_tty, 0 }, 98 }; 99 100 static int 101 c_key(a, b) 102 const void *a, *b; 103 { 104 105 return (strcmp(((struct key *)a)->name, ((struct key *)b)->name)); 106 } 107 108 int 109 ksearch(argvp, ip) 110 char ***argvp; 111 struct info *ip; 112 { 113 char *name; 114 struct key *kp, tmp; 115 116 name = **argvp; 117 if (*name == '-') { 118 ip->off = 1; 119 ++name; 120 } else 121 ip->off = 0; 122 123 tmp.name = name; 124 if (!(kp = (struct key *)bsearch(&tmp, keys, 125 sizeof(keys)/sizeof(struct key), sizeof(struct key), c_key))) 126 return (0); 127 if (!(kp->flags & F_OFFOK) && ip->off) { 128 warnx("illegal option -- -%s", name); 129 usage(); 130 } 131 if (kp->flags & F_NEEDARG && !(ip->arg = *++*argvp)) { 132 warnx("option requires an argument -- %s", name); 133 usage(); 134 } 135 kp->f(ip); 136 return (1); 137 } 138 139 void 140 f_all(ip) 141 struct info *ip; 142 { 143 print(&ip->t, &ip->win, ip->ldisc, BSD); 144 } 145 146 void 147 f_cbreak(ip) 148 struct info *ip; 149 { 150 151 if (ip->off) 152 f_sane(ip); 153 else { 154 ip->t.c_iflag |= BRKINT|IXON|IMAXBEL; 155 ip->t.c_oflag |= OPOST; 156 ip->t.c_lflag |= ISIG|IEXTEN; 157 ip->t.c_lflag &= ~ICANON; 158 ip->set = 1; 159 } 160 } 161 162 void 163 f_columns(ip) 164 struct info *ip; 165 { 166 167 ip->win.ws_col = atoi(ip->arg); 168 ip->wset = 1; 169 } 170 171 void 172 f_dec(ip) 173 struct info *ip; 174 { 175 176 ip->t.c_cc[VERASE] = (u_char)0177; 177 ip->t.c_cc[VKILL] = CTRL('u'); 178 ip->t.c_cc[VINTR] = CTRL('c'); 179 ip->t.c_lflag &= ~ECHOPRT; 180 ip->t.c_lflag |= ECHOE|ECHOKE|ECHOCTL; 181 ip->t.c_iflag &= ~IXANY; 182 ip->set = 1; 183 } 184 185 void 186 f_everything(ip) 187 struct info *ip; 188 { 189 190 print(&ip->t, &ip->win, ip->ldisc, BSD); 191 } 192 193 void 194 f_extproc(ip) 195 struct info *ip; 196 { 197 198 if (ip->off) { 199 int tmp = 0; 200 (void)ioctl(ip->fd, TIOCEXT, &tmp); 201 } else { 202 int tmp = 1; 203 (void)ioctl(ip->fd, TIOCEXT, &tmp); 204 } 205 } 206 207 void 208 f_ispeed(ip) 209 struct info *ip; 210 { 211 212 cfsetispeed(&ip->t, atoi(ip->arg)); 213 ip->set = 1; 214 } 215 216 void 217 f_nl(ip) 218 struct info *ip; 219 { 220 221 if (ip->off) { 222 ip->t.c_iflag |= ICRNL; 223 ip->t.c_oflag |= ONLCR; 224 } else { 225 ip->t.c_iflag &= ~ICRNL; 226 ip->t.c_oflag &= ~ONLCR; 227 } 228 ip->set = 1; 229 } 230 231 void 232 f_ospeed(ip) 233 struct info *ip; 234 { 235 236 cfsetospeed(&ip->t, atoi(ip->arg)); 237 ip->set = 1; 238 } 239 240 void 241 f_raw(ip) 242 struct info *ip; 243 { 244 245 if (ip->off) 246 f_sane(ip); 247 else { 248 cfmakeraw(&ip->t); 249 ip->t.c_cflag &= ~(CSIZE|PARENB); 250 ip->t.c_cflag |= CS8; 251 ip->set = 1; 252 } 253 } 254 255 void 256 f_rows(ip) 257 struct info *ip; 258 { 259 260 ip->win.ws_row = atoi(ip->arg); 261 ip->wset = 1; 262 } 263 264 void 265 f_sane(ip) 266 struct info *ip; 267 { 268 269 ip->t.c_cflag = TTYDEF_CFLAG | (ip->t.c_cflag & CLOCAL); 270 ip->t.c_iflag = TTYDEF_IFLAG; 271 ip->t.c_iflag |= ICRNL; 272 /* preserve user-preference flags in lflag */ 273 #define LKEEP (ECHOKE|ECHOE|ECHOK|ECHOPRT|ECHOCTL|ALTWERASE|TOSTOP|NOFLSH) 274 ip->t.c_lflag = TTYDEF_LFLAG | (ip->t.c_lflag & LKEEP); 275 ip->t.c_oflag = TTYDEF_OFLAG; 276 ip->set = 1; 277 } 278 279 void 280 f_size(ip) 281 struct info *ip; 282 { 283 284 (void)printf("%d %d\n", ip->win.ws_row, ip->win.ws_col); 285 } 286 287 void 288 f_speed(ip) 289 struct info *ip; 290 { 291 292 (void)printf("%lu\n", (u_long)cfgetospeed(&ip->t)); 293 } 294 295 void 296 f_tty(ip) 297 struct info *ip; 298 { 299 int tmp; 300 301 tmp = TTYDISC; 302 if (ioctl(ip->fd, TIOCSETD, &tmp) < 0) 303 err(1, "TIOCSETD"); 304 } 305