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/*-
* Copyright (c) 1980, 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#ifdef lint
static const char sccsid[] = "@(#)keyboard.c 8.1 (Berkeley) 6/6/93";
#endif
#include <errno.h>
#include <ctype.h>
#include <signal.h>
#include <stdlib.h>
#include <termios.h>
#include "systat.h"
#include "extern.h"
int
keyboard(void)
{
char line[80];
int ch, oldmask;
for (;;) {
col = 0;
move(CMDLINE, 0);
do {
refresh();
ch = getch();
if (ch == ERR) {
if (errno == EINTR)
continue;
exit(1);
}
if (ch >= 'A' && ch <= 'Z')
ch += 'a' - 'A';
if (col == 0) {
#define mask(s) (1 << ((s) - 1))
if (ch == CTRL('l')) {
oldmask = sigblock(mask(SIGALRM));
wrefresh(curscr);
sigsetmask(oldmask);
continue;
}
if (ch == CTRL('g')) {
oldmask = sigblock(mask(SIGALRM));
status();
sigsetmask(oldmask);
continue;
}
if (ch != ':')
continue;
move(CMDLINE, 0);
clrtoeol();
}
if (ch == erasechar() && col > 0) {
if (col == 1 && line[0] == ':')
continue;
col--;
goto doerase;
}
if (ch == CTRL('w') && col > 0) {
while (--col >= 0 && isspace(line[col]))
;
col++;
while (--col >= 0 && !isspace(line[col]))
if (col == 0 && line[0] == ':')
break;
col++;
goto doerase;
}
if (ch == killchar() && col > 0) {
col = 0;
if (line[0] == ':')
col++;
doerase:
move(CMDLINE, col);
clrtoeol();
continue;
}
if (isprint(ch) || ch == ' ') {
line[col] = ch;
mvaddch(CMDLINE, col, ch);
col++;
}
} while (col == 0 || (ch != '\r' && ch != '\n'));
line[col] = '\0';
oldmask = sigblock(mask(SIGALRM));
command(line + 1);
sigsetmask(oldmask);
}
/*NOTREACHED*/
}
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