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