1 /*- 2 * Copyright (c) 1991 The Regents of the University of California. 3 * 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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 /* from: static char sccsid[] = "@(#)key.c 5.3 (Berkeley) 6/10/91"; */ 36 static char rcsid[] = "$Id: key.c,v 1.5 1993/06/01 14:42:13 cgd Exp $"; 37 #endif /* not lint */ 38 39 #include <sys/types.h> 40 #include <errno.h> 41 #include <stdlib.h> 42 #include <stdio.h> 43 #include <string.h> 44 #include "stty.h" 45 #include "extern.h" 46 47 __BEGIN_DECLS 48 void f_all __P((struct info *)); 49 void f_cbreak __P((struct info *)); 50 void f_columns __P((struct info *)); 51 void f_dec __P((struct info *)); 52 void f_everything __P((struct info *)); 53 void f_extproc __P((struct info *)); 54 void f_ispeed __P((struct info *)); 55 void f_nl __P((struct info *)); 56 void f_ospeed __P((struct info *)); 57 void f_raw __P((struct info *)); 58 void f_rows __P((struct info *)); 59 void f_sane __P((struct info *)); 60 void f_size __P((struct info *)); 61 void f_speed __P((struct info *)); 62 void f_tty __P((struct info *)); 63 __END_DECLS 64 65 static struct key { 66 char *name; /* name */ 67 void (*f) __P((struct info *)); /* function */ 68 #define F_NEEDARG 0x01 /* needs an argument */ 69 #define F_OFFOK 0x02 /* can turn off */ 70 int flags; 71 } keys[] = { 72 "all", f_all, 0, 73 "cbreak", f_cbreak, F_OFFOK, 74 "cols", f_columns, F_NEEDARG, 75 "columns", f_columns, F_NEEDARG, 76 "cooked", f_sane, 0, 77 "dec", f_dec, 0, 78 "everything", f_everything, 0, 79 "extproc", f_extproc, F_OFFOK, 80 "ispeed", f_ispeed, F_NEEDARG, 81 "new", f_tty, 0, 82 "nl", f_nl, F_OFFOK, 83 "old", f_tty, 0, 84 "ospeed", f_ospeed, F_NEEDARG, 85 "raw", f_raw, F_OFFOK, 86 "rows", f_rows, F_NEEDARG, 87 "sane", f_sane, 0, 88 "size", f_size, 0, 89 "speed", f_speed, 0, 90 "tty", f_tty, 0, 91 }; 92 93 ksearch(argvp, ip) 94 char ***argvp; 95 struct info *ip; 96 { 97 register struct key *kp; 98 register char *name; 99 struct key tmp; 100 static int c_key __P((const void *, const void *)); 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 err("illegal option -- %s\n%s", name, usage); 115 if (kp->flags & F_NEEDARG && !(ip->arg = *++*argvp)) 116 err("option requires an argument -- %s\n%s", name, usage); 117 kp->f(ip); 118 return(1); 119 } 120 121 static 122 c_key(a, b) 123 const void *a, *b; 124 { 125 return(strcmp(((struct key *)a)->name, ((struct key *)b)->name)); 126 } 127 128 void 129 f_all(ip) 130 struct info *ip; 131 { 132 print(&ip->t, &ip->win, ip->ldisc, BSD); 133 } 134 135 void 136 f_cbreak(ip) 137 struct info *ip; 138 { 139 if (ip->off) 140 f_sane(ip); 141 else { 142 ip->t.c_iflag |= BRKINT|IXON|IMAXBEL; 143 ip->t.c_oflag |= OPOST; 144 ip->t.c_lflag |= ISIG|IEXTEN; 145 ip->t.c_lflag &= ~ICANON; 146 ip->set = 1; 147 } 148 } 149 150 void 151 f_columns(ip) 152 struct info *ip; 153 { 154 ip->win.ws_col = atoi(ip->arg); 155 ip->wset = 1; 156 } 157 158 void 159 f_dec(ip) 160 struct info *ip; 161 { 162 ip->t.c_cc[VERASE] = (u_char)0177; 163 ip->t.c_cc[VKILL] = CTRL('u'); 164 ip->t.c_cc[VINTR] = CTRL('c'); 165 ip->t.c_lflag &= ~ECHOPRT; 166 ip->t.c_lflag |= ECHOE|ECHOKE|ECHOCTL; 167 ip->t.c_iflag &= ~IXANY; 168 ip->set = 1; 169 } 170 171 void 172 f_everything(ip) 173 struct info *ip; 174 { 175 print(&ip->t, &ip->win, ip->ldisc, BSD); 176 } 177 178 void 179 f_extproc(ip) 180 struct info *ip; 181 { 182 int tmp; 183 184 if (ip->set) { 185 tmp = 1; 186 (void)ioctl(ip->fd, TIOCEXT, &tmp); 187 } else { 188 tmp = 0; 189 (void)ioctl(ip->fd, TIOCEXT, &tmp); 190 } 191 } 192 193 void 194 f_ispeed(ip) 195 struct info *ip; 196 { 197 cfsetispeed(&ip->t, atoi(ip->arg)); 198 ip->set = 1; 199 } 200 201 void 202 f_nl(ip) 203 struct info *ip; 204 { 205 if (ip->off) { 206 ip->t.c_iflag |= ICRNL; 207 ip->t.c_oflag |= ONLCR; 208 } else { 209 ip->t.c_iflag &= ~ICRNL; 210 ip->t.c_oflag &= ~ONLCR; 211 } 212 ip->set = 1; 213 } 214 215 void 216 f_ospeed(ip) 217 struct info *ip; 218 { 219 cfsetospeed(&ip->t, atoi(ip->arg)); 220 ip->set = 1; 221 } 222 223 void 224 f_raw(ip) 225 struct info *ip; 226 { 227 if (ip->off) 228 f_sane(ip); 229 else { 230 cfmakeraw(&ip->t); 231 ip->t.c_cflag &= ~(CSIZE|PARENB); 232 ip->t.c_cflag |= CS8; 233 ip->set = 1; 234 } 235 } 236 237 void 238 f_rows(ip) 239 struct info *ip; 240 { 241 ip->win.ws_row = atoi(ip->arg); 242 ip->wset = 1; 243 } 244 245 void 246 f_sane(ip) 247 struct info *ip; 248 { 249 ip->t.c_cflag = TTYDEF_CFLAG | (ip->t.c_cflag & CLOCAL); 250 ip->t.c_iflag = TTYDEF_IFLAG; 251 ip->t.c_iflag |= ICRNL; 252 /* preserve user-preference flags in lflag */ 253 #define LKEEP (ECHOKE|ECHOE|ECHOK|ECHOPRT|ECHOCTL|ALTWERASE|TOSTOP|NOFLSH) 254 ip->t.c_lflag = TTYDEF_LFLAG | (ip->t.c_lflag & LKEEP); 255 ip->t.c_oflag = TTYDEF_OFLAG; 256 ip->set = 1; 257 } 258 259 void 260 f_size(ip) 261 struct info *ip; 262 { 263 (void)printf("%d %d\n", ip->win.ws_row, ip->win.ws_col); 264 } 265 266 void 267 f_speed(ip) 268 struct info *ip; 269 { 270 (void)printf("%d\n", cfgetospeed(&ip->t)); 271 } 272 273 void 274 f_tty(ip) 275 struct info *ip; 276 { 277 int tmp; 278 279 tmp = TTYDISC; 280 if (ioctl(0, TIOCSETD, &tmp) < 0) 281 err("TIOCSETD: %s", strerror(errno)); 282 } 283