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 * 4. 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 30 #ifndef lint 31 #if 0 32 static char sccsid[] = "@(#)key.c 8.3 (Berkeley) 4/2/94"; 33 #endif 34 #endif /* not lint */ 35 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD$"); 37 38 #include <sys/types.h> 39 40 #include <err.h> 41 #include <errno.h> 42 #include <stdlib.h> 43 #include <stdio.h> 44 #include <string.h> 45 46 #include "stty.h" 47 #include "extern.h" 48 49 __BEGIN_DECLS 50 static int c_key(const void *, const void *); 51 void f_all(struct info *); 52 void f_cbreak(struct info *); 53 void f_columns(struct info *); 54 void f_dec(struct info *); 55 void f_ek(struct info *); 56 void f_everything(struct info *); 57 void f_extproc(struct info *); 58 void f_ispeed(struct info *); 59 void f_nl(struct info *); 60 void f_ospeed(struct info *); 61 void f_raw(struct info *); 62 void f_rows(struct info *); 63 void f_sane(struct info *); 64 void f_size(struct info *); 65 void f_speed(struct info *); 66 void f_tty(struct info *); 67 __END_DECLS 68 69 static struct key { 70 const char *name; /* name */ 71 void (*f)(struct info *); /* function */ 72 #define F_NEEDARG 0x01 /* needs an argument */ 73 #define F_OFFOK 0x02 /* can turn off */ 74 int flags; 75 } keys[] = { 76 { "all", f_all, 0 }, 77 { "cbreak", f_cbreak, F_OFFOK }, 78 { "cols", f_columns, F_NEEDARG }, 79 { "columns", f_columns, F_NEEDARG }, 80 { "cooked", f_sane, 0 }, 81 { "dec", f_dec, 0 }, 82 { "ek", f_ek, 0 }, 83 { "everything", f_everything, 0 }, 84 { "extproc", f_extproc, F_OFFOK }, 85 { "ispeed", f_ispeed, F_NEEDARG }, 86 { "new", f_tty, 0 }, 87 { "nl", f_nl, F_OFFOK }, 88 { "old", f_tty, 0 }, 89 { "ospeed", f_ospeed, F_NEEDARG }, 90 { "raw", f_raw, F_OFFOK }, 91 { "rows", f_rows, F_NEEDARG }, 92 { "sane", f_sane, 0 }, 93 { "size", f_size, 0 }, 94 { "speed", f_speed, 0 }, 95 { "tty", f_tty, 0 }, 96 }; 97 98 static int 99 c_key(const void *a, const void *b) 100 { 101 102 return (strcmp(((const struct key *)a)->name, ((const struct key *)b)->name)); 103 } 104 105 int 106 ksearch(char ***argvp, struct info *ip) 107 { 108 char *name; 109 struct key *kp, tmp; 110 111 name = **argvp; 112 if (*name == '-') { 113 ip->off = 1; 114 ++name; 115 } else 116 ip->off = 0; 117 118 tmp.name = name; 119 if (!(kp = (struct key *)bsearch(&tmp, keys, 120 sizeof(keys)/sizeof(struct key), sizeof(struct key), c_key))) 121 return (0); 122 if (!(kp->flags & F_OFFOK) && ip->off) { 123 warnx("illegal option -- -%s", name); 124 usage(); 125 } 126 if (kp->flags & F_NEEDARG && !(ip->arg = *++*argvp)) { 127 warnx("option requires an argument -- %s", name); 128 usage(); 129 } 130 kp->f(ip); 131 return (1); 132 } 133 134 void 135 f_all(struct info *ip) 136 { 137 print(&ip->t, &ip->win, ip->ldisc, BSD); 138 } 139 140 void 141 f_cbreak(struct info *ip) 142 { 143 144 if (ip->off) 145 f_sane(ip); 146 else { 147 ip->t.c_iflag |= BRKINT|IXON|IMAXBEL; 148 ip->t.c_oflag |= OPOST; 149 ip->t.c_lflag |= ISIG|IEXTEN; 150 ip->t.c_lflag &= ~ICANON; 151 ip->set = 1; 152 } 153 } 154 155 void 156 f_columns(struct info *ip) 157 { 158 159 ip->win.ws_col = atoi(ip->arg); 160 ip->wset = 1; 161 } 162 163 void 164 f_dec(struct info *ip) 165 { 166 167 ip->t.c_cc[VERASE] = (u_char)0177; 168 ip->t.c_cc[VKILL] = CTRL('u'); 169 ip->t.c_cc[VINTR] = CTRL('c'); 170 ip->t.c_lflag &= ~ECHOPRT; 171 ip->t.c_lflag |= ECHOE|ECHOKE|ECHOCTL; 172 ip->t.c_iflag &= ~IXANY; 173 ip->set = 1; 174 } 175 176 void 177 f_ek(struct info *ip) 178 { 179 180 ip->t.c_cc[VERASE] = CERASE; 181 ip->t.c_cc[VKILL] = CKILL; 182 ip->set = 1; 183 } 184 185 void 186 f_everything(struct info *ip) 187 { 188 189 print(&ip->t, &ip->win, ip->ldisc, BSD); 190 } 191 192 void 193 f_extproc(struct info *ip) 194 { 195 196 if (ip->off) { 197 int tmp = 0; 198 (void)ioctl(ip->fd, TIOCEXT, &tmp); 199 } else { 200 int tmp = 1; 201 (void)ioctl(ip->fd, TIOCEXT, &tmp); 202 } 203 } 204 205 void 206 f_ispeed(struct info *ip) 207 { 208 209 cfsetispeed(&ip->t, (speed_t)atoi(ip->arg)); 210 ip->set = 1; 211 } 212 213 void 214 f_nl(struct info *ip) 215 { 216 217 if (ip->off) { 218 ip->t.c_iflag |= ICRNL; 219 ip->t.c_oflag |= ONLCR; 220 } else { 221 ip->t.c_iflag &= ~ICRNL; 222 ip->t.c_oflag &= ~ONLCR; 223 } 224 ip->set = 1; 225 } 226 227 void 228 f_ospeed(struct info *ip) 229 { 230 231 cfsetospeed(&ip->t, (speed_t)atoi(ip->arg)); 232 ip->set = 1; 233 } 234 235 void 236 f_raw(struct info *ip) 237 { 238 239 if (ip->off) 240 f_sane(ip); 241 else { 242 cfmakeraw(&ip->t); 243 ip->t.c_cflag &= ~(CSIZE|PARENB); 244 ip->t.c_cflag |= CS8; 245 ip->set = 1; 246 } 247 } 248 249 void 250 f_rows(struct info *ip) 251 { 252 253 ip->win.ws_row = atoi(ip->arg); 254 ip->wset = 1; 255 } 256 257 void 258 f_sane(struct info *ip) 259 { 260 struct termios def; 261 262 cfmakesane(&def); 263 ip->t.c_cflag = def.c_cflag | (ip->t.c_cflag & CLOCAL); 264 ip->t.c_iflag = def.c_iflag; 265 /* preserve user-preference flags in lflag */ 266 #define LKEEP (ECHOKE|ECHOE|ECHOK|ECHOPRT|ECHOCTL|ALTWERASE|TOSTOP|NOFLSH) 267 ip->t.c_lflag = def.c_lflag | (ip->t.c_lflag & LKEEP); 268 ip->t.c_oflag = def.c_oflag; 269 ip->set = 1; 270 } 271 272 void 273 f_size(struct info *ip) 274 { 275 276 (void)printf("%d %d\n", ip->win.ws_row, ip->win.ws_col); 277 } 278 279 void 280 f_speed(struct info *ip) 281 { 282 283 (void)printf("%lu\n", (u_long)cfgetospeed(&ip->t)); 284 } 285 286 void 287 f_tty(struct info *ip) 288 { 289 int tmp; 290 291 tmp = TTYDISC; 292 if (ioctl(ip->fd, TIOCSETD, &tmp) < 0) 293 err(1, "TIOCSETD"); 294 } 295