diff options
Diffstat (limited to 'usr.bin/systat/keyboard.c')
| -rw-r--r-- | usr.bin/systat/keyboard.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/usr.bin/systat/keyboard.c b/usr.bin/systat/keyboard.c new file mode 100644 index 0000000..ae4feb5 --- /dev/null +++ b/usr.bin/systat/keyboard.c @@ -0,0 +1,119 @@ +/*- + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 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. + */ + +#ifndef lint +static char sccsid[] = "@(#)keyboard.c 8.1 (Berkeley) 6/6/93"; +#endif /* not lint */ + +#include <ctype.h> +#include <signal.h> +#include <termios.h> + +#include "systat.h" +#include "extern.h" + +int +keyboard() +{ + char ch, line[80]; + int oldmask; + + for (;;) { + col = 0; + move(CMDLINE, 0); + do { + refresh(); + ch = getch() & 0177; + if (ch == 0177 && ferror(stdin)) { + clearerr(stdin); + continue; + } + 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*/ +} |
