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1.16 ! pvalchev 1: /* $OpenBSD: keyboard.c,v 1.15 2004/04/14 19:53:04 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
1.16 ! pvalchev 37: static char rcsid[] = "$OpenBSD: keyboard.c,v 1.15 2004/04/14 19:53:04 deraadt Exp $";
1.1 deraadt 38: #endif /* not lint */
39:
1.16 ! pvalchev 40: #include <sys/types.h>
1.1 deraadt 41: #include <ctype.h>
42: #include <signal.h>
1.14 david 43: #include <stdlib.h>
1.16 ! pvalchev 44: #include <unistd.h>
1.1 deraadt 45: #include <termios.h>
1.10 deraadt 46: #include <errno.h>
1.1 deraadt 47:
48: #include "systat.h"
49: #include "extern.h"
50:
1.4 kstailey 51: void
1.12 deraadt 52: keyboard(void)
1.1 deraadt 53: {
1.11 deraadt 54: char line[80];
1.7 millert 55: sigset_t mask, omask;
1.11 deraadt 56: int ch;
1.1 deraadt 57:
1.10 deraadt 58: for (;;) {
59: col = 0;
60: move(CMDLINE, 0);
61: do {
1.15 deraadt 62: if (gottstp) {
63: endwin();
64: kill(getpid(), SIGSTOP);
65: gotwinch = 1;
66: gottstp = 0;
67: }
1.10 deraadt 68: if (gotdisplay) {
69: display();
70: gotdisplay = 0;
71: }
72: if (gotdie) {
73: die();
74: }
75: if (gotwinch) {
76: clearok(curscr, TRUE);
77: wrefresh(curscr);
78: gotwinch = 0;
79: }
80:
81: refresh();
82: if ((ch = getch()) == ERR) {
83: if (errno == EINTR)
84: continue;
1.6 millert 85: exit(1);
1.10 deraadt 86: }
87: ch &= 0177;
88: if (ch == 0177 && ferror(stdin)) {
89: clearerr(stdin);
90: continue;
91: }
92: if (ch >= 'A' && ch <= 'Z')
93: ch += 'a' - 'A';
94: if (col == 0) {
1.7 millert 95: switch (ch) {
96: case CTRL('l'):
97: case CTRL('g'):
98: sigemptyset(&mask);
99: sigaddset(&mask, SIGALRM);
100: sigprocmask(SIG_BLOCK, &mask, &omask);
101: if (ch == CTRL('l'))
102: wrefresh(curscr);
103: else
104: status();
105: sigprocmask(SIG_SETMASK, &omask, NULL);
1.10 deraadt 106: continue;
1.7 millert 107: case ':':
108: break;
109: default:
1.1 deraadt 110: continue;
111: }
1.10 deraadt 112: move(CMDLINE, 0);
113: clrtoeol();
114: }
115: if (ch == erasechar() && col > 0) {
116: if (col == 1 && line[0] == ':')
117: continue;
118: col--;
119: goto doerase;
120: }
121: if (ch == CTRL('w') && col > 0) {
122: while (--col >= 0 && isspace(line[col]))
123: ;
124: col++;
125: while (--col >= 0 && !isspace(line[col]))
126: if (col == 0 && line[0] == ':')
127: break;
128: col++;
129: goto doerase;
130: }
131: if (ch == killchar() && col > 0) {
132: col = 0;
133: if (line[0] == ':')
134: col++;
135: doerase:
136: move(CMDLINE, col);
137: clrtoeol();
138: continue;
139: }
1.5 aaron 140: if (col >= sizeof(line) - 1) {
1.3 deraadt 141: /* line too long */
142: beep();
143: continue;
144: }
1.10 deraadt 145: if (isprint(ch) || ch == ' ') {
146: line[col] = ch;
147: mvaddch(CMDLINE, col, ch);
148: col++;
149: }
150: } while (col == 0 || (ch != '\r' && ch != '\n'));
151: line[col] = '\0';
1.7 millert 152: sigemptyset(&mask);
153: sigaddset(&mask, SIGALRM);
154: sigprocmask(SIG_BLOCK, &mask, &omask);
1.10 deraadt 155: command(line + 1);
1.7 millert 156: sigprocmask(SIG_SETMASK, &omask, NULL);
1.10 deraadt 157: }
1.1 deraadt 158: /*NOTREACHED*/
159: }