projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 508b145c BJ |
1 | /* load me with -ltermlib */ |
| 2 | /* #include <retrofit.h> on version 6 */ | |
| 3 | /* | |
| 4 | * clear - clear the screen | |
| 5 | */ | |
| 6 | ||
| 7 | #include <stdio.h> | |
| 8 | #include <sgtty.h> | |
| 9 | ||
| 10 | char *getenv(); | |
| 11 | char *tgetstr(); | |
| 12 | char PC; | |
| 13 | short ospeed; | |
| 14 | #undef putchar | |
| 15 | int putchar(); | |
| 16 | ||
| 17 | main() | |
| 18 | { | |
| 19 | char *cp = getenv("TERM"); | |
| 20 | char clbuf[20]; | |
| 21 | char pcbuf[20]; | |
| 22 | char *clbp = clbuf; | |
| 23 | char *pcbp = pcbuf; | |
| 24 | char *clear; | |
| 25 | char buf[1024]; | |
| 26 | char *pc; | |
| 27 | struct sgttyb tty; | |
| 28 | ||
| 29 | gtty(1, &tty); | |
| 30 | ospeed = tty.sg_ospeed; | |
| 31 | if (cp == (char *) 0) | |
| 32 | exit(1); | |
| 33 | if (tgetent(buf, cp) != 1) | |
| 34 | exit(1); | |
| 35 | pc = tgetstr("pc", &pcbp); | |
| 36 | if (pc) | |
| 37 | PC = *pc; | |
| 38 | clear = tgetstr("cl", &clbp); | |
| 39 | if (clear) | |
| 40 | tputs(clear, tgetnum("li"), putchar); | |
| 41 | exit (clear != (char *) 0); | |
| 42 | } |