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