| 1 | /* |
| 2 | * Copyright (c) 1980 Regents of the University of California. |
| 3 | * All rights reserved. The Berkeley software License Agreement |
| 4 | * specifies the terms and conditions for redistribution. |
| 5 | */ |
| 6 | |
| 7 | #ifndef lint |
| 8 | char copyright[] = |
| 9 | "@(#) Copyright (c) 1980 Regents of the University of California.\n\ |
| 10 | All rights reserved.\n"; |
| 11 | #endif not lint |
| 12 | |
| 13 | #ifndef lint |
| 14 | static char sccsid[] = "@(#)reset.c 5.2 (Berkeley) %G%"; |
| 15 | #endif not lint |
| 16 | |
| 17 | /* |
| 18 | * reset - restore tty to sensible state after crapping out in raw mode. |
| 19 | */ |
| 20 | #include <sgtty.h> |
| 21 | |
| 22 | main() |
| 23 | { |
| 24 | struct sgttyb buf; |
| 25 | struct tchars tbuf; |
| 26 | struct ltchars ltbuf; |
| 27 | static int lclear = LMDMBUF|LLITOUT|LPASS8; |
| 28 | |
| 29 | ioctl(2, TIOCGETP, &buf); |
| 30 | ioctl(2, TIOCGETC, &tbuf); |
| 31 | ioctl(2, TIOCGLTC, <buf); |
| 32 | buf.sg_flags &= ~(RAW|CBREAK|VTDELAY|ALLDELAY); |
| 33 | buf.sg_flags |= XTABS|ECHO|CRMOD|ANYP; |
| 34 | reset(&buf.sg_erase, CERASE); |
| 35 | reset(&buf.sg_kill, CKILL); |
| 36 | reset(&tbuf.t_intrc, CINTR); |
| 37 | reset(&tbuf.t_quitc, CQUIT); |
| 38 | reset(&tbuf.t_startc, CSTART); |
| 39 | reset(&tbuf.t_stopc, CSTOP); |
| 40 | reset(&tbuf.t_eofc, CEOF); |
| 41 | reset(<buf.t_suspc, CSUSP); |
| 42 | reset(<buf.t_dsuspc, CDSUSP); |
| 43 | reset(<buf.t_rprntc, CRPRNT); |
| 44 | reset(<buf.t_flushc, CFLUSH); |
| 45 | reset(<buf.t_lnextc, CLNEXT); |
| 46 | reset(<buf.t_werasc, CWERASE); |
| 47 | /* brkc is left alone */ |
| 48 | ioctl(2, TIOCLBIC, &lclear); |
| 49 | ioctl(2, TIOCSETN, &buf); |
| 50 | ioctl(2, TIOCSETC, &tbuf); |
| 51 | ioctl(2, TIOCSLTC, <buf); |
| 52 | execlp("tset", "tset", "-Q", "-I", 0); /* fix term dependent stuff */ |
| 53 | exit(1); |
| 54 | } |
| 55 | |
| 56 | reset(cp, def) |
| 57 | char *cp; |
| 58 | int def; |
| 59 | { |
| 60 | |
| 61 | if (*cp == 0 || (*cp&0377)==0377) |
| 62 | *cp = def; |
| 63 | } |