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1.1 deraadt 1: /* $NetBSD: keyboard.c,v 1.2 1995/01/20 08:51:59 jtc Exp $ */
2:
3: /*-
4: * Copyright (c) 1980, 1992, 1993
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[] = "@(#)keyboard.c 8.1 (Berkeley) 6/6/93";
39: #endif
40: static char rcsid[] = "$NetBSD: keyboard.c,v 1.2 1995/01/20 08:51:59 jtc Exp $";
41: #endif /* not lint */
42:
43: #include <ctype.h>
44: #include <signal.h>
45: #include <termios.h>
46:
47: #include "systat.h"
48: #include "extern.h"
49:
50: int
51: keyboard()
52: {
53: char ch, line[80];
54: int oldmask;
55:
56: for (;;) {
57: col = 0;
58: move(CMDLINE, 0);
59: do {
60: refresh();
61: ch = getch() & 0177;
62: if (ch == 0177 && ferror(stdin)) {
63: clearerr(stdin);
64: continue;
65: }
66: if (ch >= 'A' && ch <= 'Z')
67: ch += 'a' - 'A';
68: if (col == 0) {
69: #define mask(s) (1 << ((s) - 1))
70: if (ch == CTRL('l')) {
71: oldmask = sigblock(mask(SIGALRM));
72: wrefresh(curscr);
73: sigsetmask(oldmask);
74: continue;
75: }
76: if (ch == CTRL('g')) {
77: oldmask = sigblock(mask(SIGALRM));
78: status();
79: sigsetmask(oldmask);
80: continue;
81: }
82: if (ch != ':')
83: continue;
84: move(CMDLINE, 0);
85: clrtoeol();
86: }
87: if (ch == erasechar() && col > 0) {
88: if (col == 1 && line[0] == ':')
89: continue;
90: col--;
91: goto doerase;
92: }
93: if (ch == CTRL('w') && col > 0) {
94: while (--col >= 0 && isspace(line[col]))
95: ;
96: col++;
97: while (--col >= 0 && !isspace(line[col]))
98: if (col == 0 && line[0] == ':')
99: break;
100: col++;
101: goto doerase;
102: }
103: if (ch == killchar() && col > 0) {
104: col = 0;
105: if (line[0] == ':')
106: col++;
107: doerase:
108: move(CMDLINE, col);
109: clrtoeol();
110: continue;
111: }
112: if (isprint(ch) || ch == ' ') {
113: line[col] = ch;
114: mvaddch(CMDLINE, col, ch);
115: col++;
116: }
117: } while (col == 0 || (ch != '\r' && ch != '\n'));
118: line[col] = '\0';
119: oldmask = sigblock(mask(SIGALRM));
120: command(line + 1);
121: sigsetmask(oldmask);
122: }
123: /*NOTREACHED*/
124: }