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. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)key.c 8.3 (Berkeley) 4/2/94 30 * $FreeBSD: src/bin/stty/key.c,v 1.11.2.2 2001/10/15 13:45:05 dd Exp $ 31 * $DragonFly: src/bin/stty/key.c,v 1.5 2004/11/07 20:54:52 eirikn Exp $ 32 */ 33 34 #include <sys/types.h> 35 36 #include <err.h> 37 #include <errno.h> 38 #include <stdlib.h> 39 #include <stdio.h> 40 #include <string.h> 41 42 #include "stty.h" 43 #include "extern.h" 44 45 __BEGIN_DECLS 46 static int c_key (const void *, const void *); 47 void f_all (struct info *); 48 void f_cbreak (struct info *); 49 void f_columns (struct info *); 50 void f_dec (struct info *); 51 void f_ek (struct info *); 52 void f_everything (struct info *); 53 void f_extproc (struct info *); 54 void f_ispeed (struct info *); 55 void f_nl (struct info *); 56 void f_ospeed (struct info *); 57 void f_raw (struct info *); 58 void f_rows (struct info *); 59 void f_sane (struct info *); 60 void f_size (struct info *); 61 void f_speed (struct info *); 62 void f_tty (struct info *); 63 __END_DECLS 64 65 static struct key { 66 const char *name; /* name */ 67 void (*f) (struct info *); /* function */ 68 #define F_NEEDARG 0x01 /* needs an argument */ 69 #define F_OFFOK 0x02 /* can turn off */ 70 int flags; 71 } keys[] = { 72 { "all", f_all, 0 }, 73 { "cbreak", f_cbreak, F_OFFOK }, 74 { "cols", f_columns, F_NEEDARG }, 75 { "columns", f_columns, F_NEEDARG }, 76 { "cooked", f_sane, 0 }, 77 { "dec", f_dec, 0 }, 78 { "ek", f_ek, 0 }, 79 { "everything", f_everything, 0 }, 80 { "extproc", f_extproc, F_OFFOK }, 81 { "ispeed", f_ispeed, F_NEEDARG }, 82 { "new", f_tty, 0 }, 83 { "nl", f_nl, F_OFFOK }, 84 { "old", f_tty, 0 }, 85 { "ospeed", f_ospeed, F_NEEDARG }, 86 { "raw", f_raw, F_OFFOK }, 87 { "rows", f_rows, F_NEEDARG }, 88 { "sane", f_sane, 0 }, 89 { "size", f_size, 0 }, 90 { "speed", f_speed, 0 }, 91 { "tty", f_tty, 0 }, 92 }; 93 94 static int 95 c_key(const void *a, const void *b) 96 { 97 98 return (strcmp(((const struct key *)a)->name, ((const struct key *)b)->name)); 99 } 100 101 int 102 ksearch(char ***argvp, struct info *ip) 103 { 104 char *name; 105 struct key *kp, tmp; 106 107 name = **argvp; 108 if (*name == '-') { 109 ip->off = 1; 110 ++name; 111 } else 112 ip->off = 0; 113 114 tmp.name = name; 115 if (!(kp = (struct key *)bsearch(&tmp, keys, 116 sizeof(keys)/sizeof(struct key), sizeof(struct key), c_key))) 117 return (0); 118 if (!(kp->flags & F_OFFOK) && ip->off) { 119 warnx("illegal option -- -%s", name); 120 usage(); 121 } 122 if (kp->flags & F_NEEDARG && !(ip->arg = *++*argvp)) { 123 warnx("option requires an argument -- %s", name); 124 usage(); 125 } 126 kp->f(ip); 127 return (1); 128 } 129 130 void 131 f_all(struct info *ip) 132 { 133 print(&ip->t, &ip->win, ip->ldisc, BSD); 134 } 135 136 void 137 f_cbreak(struct info *ip) 138 { 139 140 if (ip->off) 141 f_sane(ip); 142 else { 143 ip->t.c_iflag |= BRKINT|IXON|IMAXBEL; 144 ip->t.c_oflag |= OPOST; 145 ip->t.c_lflag |= ISIG|IEXTEN; 146 ip->t.c_lflag &= ~ICANON; 147 ip->set = 1; 148 } 149 } 150 151 void 152 f_columns(struct info *ip) 153 { 154 155 ip->win.ws_col = atoi(ip->arg); 156 ip->wset = 1; 157 } 158 159 void 160 f_dec(struct info *ip) 161 { 162 163 ip->t.c_cc[VERASE] = (u_char)0177; 164 ip->t.c_cc[VKILL] = CTRL('u'); 165 ip->t.c_cc[VINTR] = CTRL('c'); 166 ip->t.c_lflag &= ~ECHOPRT; 167 ip->t.c_lflag |= ECHOE|ECHOKE|ECHOCTL; 168 ip->t.c_iflag &= ~IXANY; 169 ip->set = 1; 170 } 171 172 void 173 f_ek(struct info *ip) 174 { 175 176 ip->t.c_cc[VERASE] = CERASE; 177 ip->t.c_cc[VKILL] = CKILL; 178 ip->set = 1; 179 } 180 181 void 182 f_everything(struct info *ip) 183 { 184 185 print(&ip->t, &ip->win, ip->ldisc, BSD); 186 } 187 188 void 189 f_extproc(struct info *ip) 190 { 191 192 if (ip->off) { 193 int tmp = 0; 194 ioctl(ip->fd, TIOCEXT, &tmp); 195 } else { 196 int tmp = 1; 197 ioctl(ip->fd, TIOCEXT, &tmp); 198 } 199 } 200 201 void 202 f_ispeed(struct info *ip) 203 { 204 205 cfsetispeed(&ip->t, (speed_t)atoi(ip->arg)); 206 ip->set = 1; 207 } 208 209 void 210 f_nl(struct info *ip) 211 { 212 213 if (ip->off) { 214 ip->t.c_iflag |= ICRNL; 215 ip->t.c_oflag |= ONLCR; 216 } else { 217 ip->t.c_iflag &= ~ICRNL; 218 ip->t.c_oflag &= ~ONLCR; 219 } 220 ip->set = 1; 221 } 222 223 void 224 f_ospeed(struct info *ip) 225 { 226 227 cfsetospeed(&ip->t, (speed_t)atoi(ip->arg)); 228 ip->set = 1; 229 } 230 231 void 232 f_raw(struct info *ip) 233 { 234 235 if (ip->off) 236 f_sane(ip); 237 else { 238 cfmakeraw(&ip->t); 239 ip->t.c_cflag &= ~(CSIZE|PARENB); 240 ip->t.c_cflag |= CS8; 241 ip->set = 1; 242 } 243 } 244 245 void 246 f_rows(struct info *ip) 247 { 248 249 ip->win.ws_row = atoi(ip->arg); 250 ip->wset = 1; 251 } 252 253 void 254 f_sane(struct info *ip) 255 { 256 257 ip->t.c_cflag = TTYDEF_CFLAG | (ip->t.c_cflag & CLOCAL); 258 ip->t.c_iflag = TTYDEF_IFLAG; 259 ip->t.c_iflag |= ICRNL; 260 /* preserve user-preference flags in lflag */ 261 #define LKEEP (ECHOKE|ECHOE|ECHOK|ECHOPRT|ECHOCTL|ALTWERASE|TOSTOP|NOFLSH) 262 ip->t.c_lflag = TTYDEF_LFLAG | (ip->t.c_lflag & LKEEP); 263 ip->t.c_oflag = TTYDEF_OFLAG; 264 ip->set = 1; 265 } 266 267 void 268 f_size(struct info *ip) 269 { 270 271 printf("%d %d\n", ip->win.ws_row, ip->win.ws_col); 272 } 273 274 void 275 f_speed(struct info *ip) 276 { 277 278 printf("%lu\n", (u_long)cfgetospeed(&ip->t)); 279 } 280 281 void 282 f_tty(struct info *ip) 283 { 284 int tmp; 285 286 tmp = TTYDISC; 287 if (ioctl(ip->fd, TIOCSETD, &tmp) < 0) 288 err(1, "TIOCSETD"); 289 } 290