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1.13 ! millert 1: /* $OpenBSD: keyboard.c,v 1.12 2002/06/18 00:46:47 deraadt Exp $ */
1.1 deraadt 2: /* $NetBSD: keyboard.c,v 1.2 1995/01/20 08:51:59 jtc Exp $ */
3:
4: /*-
5: * Copyright (c) 1980, 1992, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
1.13 ! millert 16: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: */
32:
33: #ifndef lint
34: #if 0
35: static char sccsid[] = "@(#)keyboard.c 8.1 (Berkeley) 6/6/93";
36: #endif
1.13 ! millert 37: static char rcsid[] = "$OpenBSD: keyboard.c,v 1.12 2002/06/18 00:46:47 deraadt Exp $";
1.1 deraadt 38: #endif /* not lint */
39:
40: #include <ctype.h>
41: #include <signal.h>
42: #include <termios.h>
1.10 deraadt 43: #include <errno.h>
1.1 deraadt 44:
45: #include "systat.h"
46: #include "extern.h"
47:
1.4 kstailey 48: void
1.12 deraadt 49: keyboard(void)
1.1 deraadt 50: {
1.11 deraadt 51: char line[80];
1.7 millert 52: sigset_t mask, omask;
1.11 deraadt 53: int ch;
1.1 deraadt 54:
1.10 deraadt 55: for (;;) {
56: col = 0;
57: move(CMDLINE, 0);
58: do {
59: if (gotdisplay) {
60: display();
61: gotdisplay = 0;
62: }
63: if (gotdie) {
64: die();
65: }
66: if (gotwinch) {
67: clearok(curscr, TRUE);
68: wrefresh(curscr);
69: gotwinch = 0;
70: }
71:
72: refresh();
73: if ((ch = getch()) == ERR) {
74: if (errno == EINTR)
75: continue;
1.6 millert 76: exit(1);
1.10 deraadt 77: }
78: ch &= 0177;
79: if (ch == 0177 && ferror(stdin)) {
80: clearerr(stdin);
81: continue;
82: }
83: if (ch >= 'A' && ch <= 'Z')
84: ch += 'a' - 'A';
85: if (col == 0) {
1.7 millert 86: switch (ch) {
87: case CTRL('l'):
88: case CTRL('g'):
89: sigemptyset(&mask);
90: sigaddset(&mask, SIGALRM);
91: sigprocmask(SIG_BLOCK, &mask, &omask);
92: if (ch == CTRL('l'))
93: wrefresh(curscr);
94: else
95: status();
96: sigprocmask(SIG_SETMASK, &omask, NULL);
1.10 deraadt 97: continue;
1.7 millert 98: case ':':
99: break;
100: default:
1.1 deraadt 101: continue;
102: }
1.10 deraadt 103: move(CMDLINE, 0);
104: clrtoeol();
105: }
106: if (ch == erasechar() && col > 0) {
107: if (col == 1 && line[0] == ':')
108: continue;
109: col--;
110: goto doerase;
111: }
112: if (ch == CTRL('w') && col > 0) {
113: while (--col >= 0 && isspace(line[col]))
114: ;
115: col++;
116: while (--col >= 0 && !isspace(line[col]))
117: if (col == 0 && line[0] == ':')
118: break;
119: col++;
120: goto doerase;
121: }
122: if (ch == killchar() && col > 0) {
123: col = 0;
124: if (line[0] == ':')
125: col++;
126: doerase:
127: move(CMDLINE, col);
128: clrtoeol();
129: continue;
130: }
1.5 aaron 131: if (col >= sizeof(line) - 1) {
1.3 deraadt 132: /* line too long */
133: beep();
134: continue;
135: }
1.10 deraadt 136: if (isprint(ch) || ch == ' ') {
137: line[col] = ch;
138: mvaddch(CMDLINE, col, ch);
139: col++;
140: }
141: } while (col == 0 || (ch != '\r' && ch != '\n'));
142: line[col] = '\0';
1.7 millert 143: sigemptyset(&mask);
144: sigaddset(&mask, SIGALRM);
145: sigprocmask(SIG_BLOCK, &mask, &omask);
1.10 deraadt 146: command(line + 1);
1.7 millert 147: sigprocmask(SIG_SETMASK, &omask, NULL);
1.10 deraadt 148: }
1.1 deraadt 149: /*NOTREACHED*/
150: }