Return to clear.c CVS log

Up to [CSRG BSD Unix] / 43BSD / ucb

Annotation of 43BSD/ucb/clear.c, revision 1.1

1.1     ! root        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[] = "@(#)clear.c    5.1 (Berkeley) 5/31/85";
        !            15: #endif not lint
        !            16: 
        !            17: /* load me with -ltermlib */
        !            18: /* #include <retrofit.h> on version 6 */
        !            19: /*
        !            20:  * clear - clear the screen
        !            21:  */
        !            22: 
        !            23: #include <stdio.h>
        !            24: #include <sgtty.h>
        !            25: 
        !            26: char   *getenv();
        !            27: char   *tgetstr();
        !            28: char   PC;
        !            29: short  ospeed;
        !            30: #undef putchar
        !            31: int    putchar();
        !            32: 
        !            33: main()
        !            34: {
        !            35:        char *cp = getenv("TERM");
        !            36:        char clbuf[20];
        !            37:        char pcbuf[20];
        !            38:        char *clbp = clbuf;
        !            39:        char *pcbp = pcbuf;
        !            40:        char *clear;
        !            41:        char buf[1024];
        !            42:        char *pc;
        !            43:        struct sgttyb tty;
        !            44: 
        !            45:        gtty(1, &tty);
        !            46:        ospeed = tty.sg_ospeed;
        !            47:        if (cp == (char *) 0)
        !            48:                exit(1);
        !            49:        if (tgetent(buf, cp) != 1)
        !            50:                exit(1);
        !            51:        pc = tgetstr("pc", &pcbp);
        !            52:        if (pc)
        !            53:                PC = *pc;
        !            54:        clear = tgetstr("cl", &clbp);
        !            55:        if (clear)
        !            56:                tputs(clear, tgetnum("li"), putchar);
        !            57:        exit (clear == (char *) 0);
        !            58: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.