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