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