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- /*
- * Copyright (c) 1980 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
- char copyright[] =
- "@(#) Copyright (c) 1980 Regents of the University of California.\n\
- All rights reserved.\n";
- #endif /* not lint */
-
- #ifndef lint
- static char sccsid[] = "@(#)rain.c 5.6 (Berkeley) 2/28/91";
- #endif /* not lint */
-
- /*
- * rain 11/3/1980 EPS/CITHEP
- * cc rain.c -o rain -O -ltermlib
- */
-
- #include <sys/types.h>
- #include <stdio.h>
- #ifdef USG
- #include <termio.h>
- #else
- #include <sgtty.h>
- #endif
- #include <signal.h>
-
- #define cursor(c, r) tputs(tgoto(CM, c, r), 1, fputchar)
-
- #ifdef USG
- static struct termio sg, old_tty;
- #else
- static struct sgttyb sg, old_tty;
- #endif
-
- int fputchar();
- char *LL, *TE, *tgoto();
-
- main(argc, argv)
- int argc;
- char **argv;
- {
- extern short ospeed;
- extern char *UP;
- register int x, y, j;
- register char *CM, *BC, *DN, *ND, *term;
- char *TI, *tcp, *mp, tcb[100],
- *malloc(), *getenv(), *strcpy(), *tgetstr();
- long cols, lines, random();
- int xpos[5], ypos[5];
- static void onsig();
-
- if (!(term = getenv("TERM"))) {
- fprintf(stderr, "%s: TERM: parameter not set\n", *argv);
- exit(1);
- }
- if (!(mp = malloc((u_int)1024))) {
- fprintf(stderr, "%s: out of space.\n", *argv);
- exit(1);
- }
- if (tgetent(mp, term) <= 0) {
- fprintf(stderr, "%s: %s: unknown terminal type\n", *argv, term);
- exit(1);
- }
- tcp = tcb;
- if (!(CM = tgetstr("cm", &tcp))) {
- fprintf(stderr, "%s: terminal not capable of cursor motion\n", *argv);
- exit(1);
- }
- if (!(BC = tgetstr("bc", &tcp)))
- BC = "\b";
- if (!(DN = tgetstr("dn", &tcp)))
- DN = "\n";
- if (!(ND = tgetstr("nd", &tcp)))
- ND = " ";
- if ((cols = tgetnum("co")) == -1)
- cols = 80;
- if ((lines = tgetnum("li")) == -1)
- lines = 24;
- cols -= 4;
- lines -= 4;
- TE = tgetstr("te", &tcp);
- TI = tgetstr("ti", &tcp);
- UP = tgetstr("up", &tcp);
- if (!(LL = tgetstr("ll", &tcp))) {
- if (!(LL = malloc((u_int)10))) {
- fprintf(stderr, "%s: out of space.\n", *argv);
- exit(1);
- }
- (void)strcpy(LL, tgoto(CM, 0, 23));
- }
- #ifdef USG
- ioctl(1, TCGETA, &sg);
- ospeed = sg.c_cflag&CBAUD;
- #else
- gtty(1, &sg);
- ospeed = sg.sg_ospeed;
- #endif
- (void)signal(SIGHUP, onsig);
- (void)signal(SIGINT, onsig);
- (void)signal(SIGQUIT, onsig);
- (void)signal(SIGSTOP, onsig);
- (void)signal(SIGTSTP, onsig);
- (void)signal(SIGTERM, onsig);
- #ifdef USG
- ioctl(1, TCGETA, &old_tty); /* save tty bits for exit */
- ioctl(1, TCGETA, &sg);
- sg.c_iflag &= ~ICRNL;
- sg.c_oflag &= ~ONLCR;
- sg.c_lflag &= ~ECHO;
- ioctl(1, TCSETAW, &sg);
- #else
- gtty(1, &old_tty); /* save tty bits for exit */
- gtty(1, &sg);
- sg.sg_flags &= ~(CRMOD|ECHO);
- stty(1, &sg);
- #endif
- if (TI)
- tputs(TI, 1, fputchar);
- tputs(tgetstr("cl", &tcp), 1, fputchar);
- (void)fflush(stdout);
- for (j = 4; j >= 0; --j) {
- xpos[j] = random() % cols + 2;
- ypos[j] = random() % lines + 2;
- }
- for (j = 0;;) {
- x = random() % cols + 2;
- y = random() % lines + 2;
- cursor(x, y);
- fputchar('.');
- cursor(xpos[j], ypos[j]);
- fputchar('o');
- if (!j--)
- j = 4;
- cursor(xpos[j], ypos[j]);
- fputchar('O');
- if (!j--)
- j = 4;
- cursor(xpos[j], ypos[j] - 1);
- fputchar('-');
- tputs(DN, 1, fputchar);
- tputs(BC, 1, fputchar);
- tputs(BC, 1, fputchar);
- fputs("|.|", stdout);
- tputs(DN, 1, fputchar);
- tputs(BC, 1, fputchar);
- tputs(BC, 1, fputchar);
- fputchar('-');
- if (!j--)
- j = 4;
- cursor(xpos[j], ypos[j] - 2);
- fputchar('-');
- tputs(DN, 1, fputchar);
- tputs(BC, 1, fputchar);
- tputs(BC, 1, fputchar);
- fputs("/ \\", stdout);
- cursor(xpos[j] - 2, ypos[j]);
- fputs("| O |", stdout);
- cursor(xpos[j] - 1, ypos[j] + 1);
- fputs("\\ /", stdout);
- tputs(DN, 1, fputchar);
- tputs(BC, 1, fputchar);
- tputs(BC, 1, fputchar);
- fputchar('-');
- if (!j--)
- j = 4;
- cursor(xpos[j], ypos[j] - 2);
- fputchar(' ');
- tputs(DN, 1, fputchar);
- tputs(BC, 1, fputchar);
- tputs(BC, 1, fputchar);
- fputchar(' ');
- tputs(ND, 1, fputchar);
- fputchar(' ');
- cursor(xpos[j] - 2, ypos[j]);
- fputchar(' ');
- tputs(ND, 1, fputchar);
- fputchar(' ');
- tputs(ND, 1, fputchar);
- fputchar(' ');
- cursor(xpos[j] - 1, ypos[j] + 1);
- fputchar(' ');
- tputs(ND, 1, fputchar);
- fputchar(' ');
- tputs(DN, 1, fputchar);
- tputs(BC, 1, fputchar);
- tputs(BC, 1, fputchar);
- fputchar(' ');
- xpos[j] = x;
- ypos[j] = y;
- (void)fflush(stdout);
- }
- }
-
- static void
- onsig()
- {
- tputs(LL, 1, fputchar);
- if (TE)
- tputs(TE, 1, fputchar);
- (void)fflush(stdout);
- #ifdef USG
- ioctl(1, TCSETAW, &old_tty);
- #else
- stty(1, &old_tty);
- #endif
- exit(0);
- }
-
- static
- fputchar(c)
- char c;
- {
- putchar(c);
- }
-