key.c revision 1.11
1 /* $NetBSD: key.c,v 1.11 1995/09/07 06:57:11 jtc Exp $ */ 2 3 /*- 4 * Copyright (c) 1991, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)key.c 8.4 (Berkeley) 2/20/95"; 39 #else 40 static char rcsid[] = "$NetBSD: key.c,v 1.11 1995/09/07 06:57:11 jtc Exp $"; 41 #endif 42 #endif /* not lint */ 43 44 #include <sys/types.h> 45 46 #include <err.h> 47 #include <errno.h> 48 #include <stdlib.h> 49 #include <stdio.h> 50 #include <string.h> 51 52 #include "stty.h" 53 #include "extern.h" 54 55 __BEGIN_DECLS 56 void f_all __P((struct info *)); 57 void f_cbreak __P((struct info *)); 58 void f_columns __P((struct info *)); 59 void f_dec __P((struct info *)); 60 void f_everything __P((struct info *)); 61 void f_extproc __P((struct info *)); 62 void f_ispeed __P((struct info *)); 63 void f_nl __P((struct info *)); 64 void f_ospeed __P((struct info *)); 65 void f_raw __P((struct info *)); 66 void f_rows __P((struct info *)); 67 void f_sane __P((struct info *)); 68 void f_size __P((struct info *)); 69 void f_speed __P((struct info *)); 70 void f_tty __P((struct info *)); 71 __END_DECLS 72 73 static struct key { 74 char *name; /* name */ 75 void (*f) __P((struct info *)); /* function */ 76 #define F_NEEDARG 0x01 /* needs an argument */ 77 #define F_OFFOK 0x02 /* can turn off */ 78 int flags; 79 } keys[] = { 80 { "all", f_all, 0 }, 81 { "cbreak", f_cbreak, F_OFFOK }, 82 { "cols", f_columns, F_NEEDARG }, 83 { "columns", f_columns, F_NEEDARG }, 84 { "cooked", f_sane, 0 }, 85 { "dec", f_dec, 0 }, 86 { "everything", f_everything, 0 }, 87 { "extproc", f_extproc, F_OFFOK }, 88 { "ispeed", f_ispeed, F_NEEDARG }, 89 { "new", f_tty, 0 }, 90 { "nl", f_nl, F_OFFOK }, 91 { "old", f_tty, 0 }, 92 { "ospeed", f_ospeed, F_NEEDARG }, 93 { "raw", f_raw, F_OFFOK }, 94 { "rows", f_rows, F_NEEDARG }, 95 { "sane", f_sane, 0 }, 96 { "size", f_size, 0 }, 97 { "speed", f_speed, 0 }, 98 { "tty", f_tty, 0 }, 99 }; 100 101 static int 102 c_key(a, b) 103 const void *a, *b; 104 { 105 106 return (strcmp(((struct key *)a)->name, ((struct key *)b)->name)); 107 } 108 109 int 110 ksearch(argvp, ip) 111 char ***argvp; 112 struct info *ip; 113 { 114 char *name; 115 struct key *kp, tmp; 116 117 name = **argvp; 118 if (*name == '-') { 119 ip->off = 1; 120 ++name; 121 } else 122 ip->off = 0; 123 124 tmp.name = name; 125 if (!(kp = (struct key *)bsearch(&tmp, keys, 126 sizeof(keys)/sizeof(struct key), sizeof(struct key), c_key))) 127 return (0); 128 if (!(kp->flags & F_OFFOK) && ip->off) { 129 warnx("illegal option -- %s", name); 130 usage(); 131 } 132 if (kp->flags & F_NEEDARG && !(ip->arg = *++*argvp)) { 133 warnx("option requires an argument -- %s", name); 134 usage(); 135 } 136 kp->f(ip); 137 return (1); 138 } 139 140 void 141 f_all(ip) 142 struct info *ip; 143 { 144 print(&ip->t, &ip->win, ip->ldisc, BSD); 145 } 146 147 void 148 f_cbreak(ip) 149 struct info *ip; 150 { 151 152 if (ip->off) 153 f_sane(ip); 154 else { 155 ip->t.c_iflag |= BRKINT|IXON|IMAXBEL; 156 ip->t.c_oflag |= OPOST; 157 ip->t.c_lflag |= ISIG|IEXTEN; 158 ip->t.c_lflag &= ~ICANON; 159 ip->set = 1; 160 } 161 } 162 163 void 164 f_columns(ip) 165 struct info *ip; 166 { 167 168 ip->win.ws_col = atoi(ip->arg); 169 ip->wset = 1; 170 } 171 172 void 173 f_dec(ip) 174 struct info *ip; 175 { 176 177 ip->t.c_cc[VERASE] = (u_char)0177; 178 ip->t.c_cc[VKILL] = CTRL('u'); 179 ip->t.c_cc[VINTR] = CTRL('c'); 180 ip->t.c_lflag &= ~ECHOPRT; 181 ip->t.c_lflag |= ECHOE|ECHOKE|ECHOCTL; 182 ip->t.c_iflag &= ~IXANY; 183 ip->set = 1; 184 } 185 186 void 187 f_everything(ip) 188 struct info *ip; 189 { 190 191 print(&ip->t, &ip->win, ip->ldisc, BSD); 192 } 193 194 void 195 f_extproc(ip) 196 struct info *ip; 197 { 198 199 if (ip->off) { 200 int tmp = 0; 201 (void)ioctl(ip->fd, TIOCEXT, &tmp); 202 } else { 203 int tmp = 1; 204 (void)ioctl(ip->fd, TIOCEXT, &tmp); 205 } 206 ip->set = 1; 207 } 208 209 void 210 f_ispeed(ip) 211 struct info *ip; 212 { 213 214 cfsetispeed(&ip->t, atoi(ip->arg)); 215 ip->set = 1; 216 } 217 218 void 219 f_nl(ip) 220 struct info *ip; 221 { 222 223 if (ip->off) { 224 ip->t.c_iflag |= ICRNL; 225 ip->t.c_oflag |= ONLCR; 226 } else { 227 ip->t.c_iflag &= ~ICRNL; 228 ip->t.c_oflag &= ~ONLCR; 229 } 230 ip->set = 1; 231 } 232 233 void 234 f_ospeed(ip) 235 struct info *ip; 236 { 237 238 cfsetospeed(&ip->t, atoi(ip->arg)); 239 ip->set = 1; 240 } 241 242 void 243 f_raw(ip) 244 struct info *ip; 245 { 246 247 if (ip->off) 248 f_sane(ip); 249 else { 250 cfmakeraw(&ip->t); 251 ip->t.c_cflag &= ~(CSIZE|PARENB); 252 ip->t.c_cflag |= CS8; 253 ip->set = 1; 254 } 255 } 256 257 void 258 f_rows(ip) 259 struct info *ip; 260 { 261 262 ip->win.ws_row = atoi(ip->arg); 263 ip->wset = 1; 264 } 265 266 void 267 f_sane(ip) 268 struct info *ip; 269 { 270 271 ip->t.c_cflag = TTYDEF_CFLAG | (ip->t.c_cflag & (CLOCAL|CRTSCTS)); 272 ip->t.c_iflag = TTYDEF_IFLAG; 273 ip->t.c_iflag |= ICRNL; 274 /* preserve user-preference flags in lflag */ 275 #define LKEEP (ECHOKE|ECHOE|ECHOK|ECHOPRT|ECHOCTL|ALTWERASE|TOSTOP|NOFLSH) 276 ip->t.c_lflag = TTYDEF_LFLAG | (ip->t.c_lflag & LKEEP); 277 ip->t.c_oflag = TTYDEF_OFLAG; 278 ip->set = 1; 279 } 280 281 void 282 f_size(ip) 283 struct info *ip; 284 { 285 286 (void)printf("%d %d\n", ip->win.ws_row, ip->win.ws_col); 287 } 288 289 void 290 f_speed(ip) 291 struct info *ip; 292 { 293 294 (void)printf("%d\n", cfgetospeed(&ip->t)); 295 } 296 297 void 298 f_tty(ip) 299 struct info *ip; 300 { 301 int tmp; 302 303 tmp = TTYDISC; 304 if (ioctl(0, TIOCSETD, &tmp) < 0) 305 err(1, "TIOCSETD"); 306 } 307
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