key.c revision 1.8
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 /*static char sccsid[] = "from: @(#)key.c 5.3 (Berkeley) 6/10/91";*/ 36 static char rcsid[] = "$Id: key.c,v 1.8 1994/03/23 04:05:29 mycroft Exp $"; 37 #endif /* not lint */ 38 39 #include <sys/types.h> 40 #include <err.h> 41 #include <errno.h> 42 #include <stdlib.h> 43 #include <stdio.h> 44 #include <string.h> 45 #include "stty.h" 46 #include "extern.h" 47 48 __BEGIN_DECLS 49 void f_all __P((struct info *)); 50 void f_cbreak __P((struct info *)); 51 void f_columns __P((struct info *)); 52 void f_dec __P((struct info *)); 53 void f_everything __P((struct info *)); 54 void f_extproc __P((struct info *)); 55 void f_ispeed __P((struct info *)); 56 void f_nl __P((struct info *)); 57 void f_ospeed __P((struct info *)); 58 void f_raw __P((struct info *)); 59 void f_rows __P((struct info *)); 60 void f_sane __P((struct info *)); 61 void f_size __P((struct info *)); 62 void f_speed __P((struct info *)); 63 void f_tty __P((struct info *)); 64 __END_DECLS 65 66 static struct key { 67 char *name; /* name */ 68 void (*f) __P((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 "everything", f_everything, 0, 80 "extproc", f_extproc, F_OFFOK, 81 "ispeed", f_ispeed, F_NEEDARG, 82 "new", f_tty, 0, 83 "nl", f_nl, F_OFFOK, 84 "old", f_tty, 0, 85 "ospeed", f_ospeed, F_NEEDARG, 86 "raw", f_raw, F_OFFOK, 87 "rows", f_rows, F_NEEDARG, 88 "sane", f_sane, 0, 89 "size", f_size, 0, 90 "speed", f_speed, 0, 91 "tty", f_tty, 0, 92 }; 93 94 ksearch(argvp, ip) 95 char ***argvp; 96 struct info *ip; 97 { 98 register struct key *kp; 99 register char *name; 100 struct key tmp; 101 static int c_key __P((const void *, const void *)); 102 103 name = **argvp; 104 if (*name == '-') { 105 ip->off = 1; 106 ++name; 107 } else 108 ip->off = 0; 109 110 tmp.name = name; 111 if (!(kp = (struct key *)bsearch(&tmp, keys, 112 sizeof(keys)/sizeof(struct key), sizeof(struct key), c_key))) 113 return(0); 114 if (!(kp->flags & F_OFFOK) && ip->off) { 115 warnx("illegal option -- %s", name); 116 usage(); 117 } 118 if (kp->flags & F_NEEDARG && !(ip->arg = *++*argvp)) { 119 warnx("option requires an argument -- %s", name); 120 usage(); 121 } 122 kp->f(ip); 123 return(1); 124 } 125 126 static 127 c_key(a, b) 128 const void *a, *b; 129 { 130 return(strcmp(((struct key *)a)->name, ((struct key *)b)->name)); 131 } 132 133 void 134 f_all(ip) 135 struct info *ip; 136 { 137 print(&ip->t, &ip->win, ip->ldisc, BSD); 138 } 139 140 void 141 f_cbreak(ip) 142 struct info *ip; 143 { 144 if (ip->off) 145 f_sane(ip); 146 else { 147 ip->t.c_iflag |= BRKINT|IXON|IMAXBEL; 148 ip->t.c_oflag |= OPOST; 149 ip->t.c_lflag |= ISIG|IEXTEN; 150 ip->t.c_lflag &= ~ICANON; 151 ip->set = 1; 152 } 153 } 154 155 void 156 f_columns(ip) 157 struct info *ip; 158 { 159 ip->win.ws_col = atoi(ip->arg); 160 ip->wset = 1; 161 } 162 163 void 164 f_dec(ip) 165 struct info *ip; 166 { 167 ip->t.c_cc[VERASE] = (u_char)0177; 168 ip->t.c_cc[VKILL] = CTRL('u'); 169 ip->t.c_cc[VINTR] = CTRL('c'); 170 ip->t.c_lflag &= ~ECHOPRT; 171 ip->t.c_lflag |= ECHOE|ECHOKE|ECHOCTL; 172 ip->t.c_iflag &= ~IXANY; 173 ip->set = 1; 174 } 175 176 void 177 f_everything(ip) 178 struct info *ip; 179 { 180 print(&ip->t, &ip->win, ip->ldisc, BSD); 181 } 182 183 void 184 f_extproc(ip) 185 struct info *ip; 186 { 187 int tmp; 188 189 if (ip->set) { 190 tmp = 1; 191 (void)ioctl(ip->fd, TIOCEXT, &tmp); 192 } else { 193 tmp = 0; 194 (void)ioctl(ip->fd, TIOCEXT, &tmp); 195 } 196 } 197 198 void 199 f_ispeed(ip) 200 struct info *ip; 201 { 202 cfsetispeed(&ip->t, atoi(ip->arg)); 203 ip->set = 1; 204 } 205 206 void 207 f_nl(ip) 208 struct info *ip; 209 { 210 if (ip->off) { 211 ip->t.c_iflag |= ICRNL; 212 ip->t.c_oflag |= ONLCR; 213 } else { 214 ip->t.c_iflag &= ~ICRNL; 215 ip->t.c_oflag &= ~ONLCR; 216 } 217 ip->set = 1; 218 } 219 220 void 221 f_ospeed(ip) 222 struct info *ip; 223 { 224 cfsetospeed(&ip->t, atoi(ip->arg)); 225 ip->set = 1; 226 } 227 228 void 229 f_raw(ip) 230 struct info *ip; 231 { 232 if (ip->off) 233 f_sane(ip); 234 else { 235 cfmakeraw(&ip->t); 236 ip->t.c_cflag &= ~(CSIZE|PARENB); 237 ip->t.c_cflag |= CS8; 238 ip->set = 1; 239 } 240 } 241 242 void 243 f_rows(ip) 244 struct info *ip; 245 { 246 ip->win.ws_row = atoi(ip->arg); 247 ip->wset = 1; 248 } 249 250 void 251 f_sane(ip) 252 struct info *ip; 253 { 254 ip->t.c_cflag = TTYDEF_CFLAG | (ip->t.c_cflag & (CLOCAL|CRTSCTS)); 255 ip->t.c_iflag = TTYDEF_IFLAG; 256 ip->t.c_iflag |= ICRNL; 257 /* preserve user-preference flags in lflag */ 258 #define LKEEP (ECHOKE|ECHOE|ECHOK|ECHOPRT|ECHOCTL|ALTWERASE|TOSTOP|NOFLSH) 259 ip->t.c_lflag = TTYDEF_LFLAG | (ip->t.c_lflag & LKEEP); 260 ip->t.c_oflag = TTYDEF_OFLAG; 261 ip->set = 1; 262 } 263 264 void 265 f_size(ip) 266 struct info *ip; 267 { 268 (void)printf("%d %d\n", ip->win.ws_row, ip->win.ws_col); 269 } 270 271 void 272 f_speed(ip) 273 struct info *ip; 274 { 275 (void)printf("%d\n", cfgetospeed(&ip->t)); 276 } 277 278 void 279 f_tty(ip) 280 struct info *ip; 281 { 282 int tmp; 283 284 tmp = TTYDISC; 285 if (ioctl(0, TIOCSETD, &tmp) < 0) 286 err(1, "TIOCSETD"); 287 } 288
Indexes created Tue Sep 30 07:10:03 GMT 2025