rain.c revision 1.10
1 /* $NetBSD: rain.c,v 1.10 1997/10/13 22:01:54 cjs Exp $ */ 2 3 /* 4 * Copyright (c) 1980, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) Copyright (c) 1980, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"); 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)rain.c 8.1 (Berkeley) 5/31/93"; 45 #else 46 __RCSID("$NetBSD: rain.c,v 1.10 1997/10/13 22:01:54 cjs Exp $"); 47 #endif 48 #endif /* not lint */ 49 50 /* 51 * rain 11/3/1980 EPS/CITHEP 52 * cc rain.c -o rain -O -ltermlib 53 */ 54 55 #include <sys/types.h> 56 #include <sys/ioctl.h> 57 #include <err.h> 58 #include <signal.h> 59 #include <stdio.h> 60 #include <stdlib.h> 61 #include <string.h> 62 #include <termcap.h> 63 #include <termios.h> 64 65 #define cursor(c, r) tputs(tgoto(CM, c, r), 1, fputchar) 66 67 static struct termios sg, old_tty; 68 69 void fputchar __P((int)); 70 int main __P((int, char **)); 71 void onsig __P((int)); 72 73 74 char *LL, *TE; 75 76 int 77 main(argc, argv) 78 int argc; 79 char **argv; 80 { 81 extern char *UP; 82 int x, y, j; 83 char *CM, *BC, *DN, *ND, *term; 84 char *TI, *tcp, *mp, tcb[100]; 85 long cols, lines; 86 int xpos[5], ypos[5]; 87 #ifdef TIOCGWINSZ 88 struct winsize ws; 89 #endif 90 91 if (!(term = getenv("TERM"))) 92 errx(1, "TERM: parameter not set"); 93 if (!(mp = malloc((u_int)1024))) 94 errx(1, "out of space"); 95 if (tgetent(mp, term) <= 0) 96 errx(1, "unknown terminal type `%s'", term); 97 tcp = tcb; 98 if (!(CM = tgetstr("cm", &tcp))) 99 errx(1, "terminal not capable of cursor motion"); 100 if (!(BC = tgetstr("bc", &tcp))) 101 BC = "\b"; 102 if (!(DN = tgetstr("dn", &tcp))) 103 DN = "\n"; 104 if (!(ND = tgetstr("nd", &tcp))) 105 ND = " "; 106 #ifdef TIOCGWINSZ 107 if (ioctl(fileno(stdout), TIOCGWINSZ, &ws) != -1 && 108 ws.ws_col && ws.ws_row) { 109 cols = ws.ws_col; 110 lines = ws.ws_row; 111 } else 112 #endif 113 { 114 if ((cols = tgetnum("co")) == -1) 115 cols = 80; 116 if ((lines = tgetnum("li")) == -1) 117 lines = 24; 118 } 119 cols -= 4; 120 lines -= 4; 121 TE = tgetstr("te", &tcp); 122 TI = tgetstr("ti", &tcp); 123 UP = tgetstr("up", &tcp); 124 if (!(LL = tgetstr("ll", &tcp))) { 125 if (!(LL = malloc((u_int)10))) { 126 fprintf(stderr, "%s: out of space.\n", *argv); 127 exit(1); 128 } 129 (void)strcpy(LL, tgoto(CM, 0, 23)); 130 } 131 (void)signal(SIGHUP, onsig); 132 (void)signal(SIGINT, onsig); 133 (void)signal(SIGQUIT, onsig); 134 (void)signal(SIGSTOP, onsig); 135 (void)signal(SIGTSTP, onsig); 136 (void)signal(SIGTERM, onsig); 137 tcgetattr(1, &sg); 138 old_tty = sg; 139 sg.c_iflag &= ~ICRNL; 140 sg.c_oflag &= ~ONLCR; 141 sg.c_lflag &= ~ECHO; 142 tcsetattr(1, TCSADRAIN, &sg); 143 if (TI) 144 tputs(TI, 1, fputchar); 145 tputs(tgetstr("cl", &tcp), 1, fputchar); 146 (void)fflush(stdout); 147 for (j = 4; j >= 0; --j) { 148 xpos[j] = random() % cols + 2; 149 ypos[j] = random() % lines + 2; 150 } 151 for (j = 0;;) { 152 x = random() % cols + 2; 153 y = random() % lines + 2; 154 cursor(x, y); 155 fputchar('.'); 156 cursor(xpos[j], ypos[j]); 157 fputchar('o'); 158 if (!j--) 159 j = 4; 160 cursor(xpos[j], ypos[j]); 161 fputchar('O'); 162 if (!j--) 163 j = 4; 164 cursor(xpos[j], ypos[j] - 1); 165 fputchar('-'); 166 tputs(DN, 1, fputchar); 167 tputs(BC, 1, fputchar); 168 tputs(BC, 1, fputchar); 169 fputs("|.|", stdout); 170 tputs(DN, 1, fputchar); 171 tputs(BC, 1, fputchar); 172 tputs(BC, 1, fputchar); 173 fputchar('-'); 174 if (!j--) 175 j = 4; 176 cursor(xpos[j], ypos[j] - 2); 177 fputchar('-'); 178 tputs(DN, 1, fputchar); 179 tputs(BC, 1, fputchar); 180 tputs(BC, 1, fputchar); 181 fputs("/ \\", stdout); 182 cursor(xpos[j] - 2, ypos[j]); 183 fputs("| O |", stdout); 184 cursor(xpos[j] - 1, ypos[j] + 1); 185 fputs("\\ /", stdout); 186 tputs(DN, 1, fputchar); 187 tputs(BC, 1, fputchar); 188 tputs(BC, 1, fputchar); 189 fputchar('-'); 190 if (!j--) 191 j = 4; 192 cursor(xpos[j], ypos[j] - 2); 193 fputchar(' '); 194 tputs(DN, 1, fputchar); 195 tputs(BC, 1, fputchar); 196 tputs(BC, 1, fputchar); 197 fputchar(' '); 198 tputs(ND, 1, fputchar); 199 fputchar(' '); 200 cursor(xpos[j] - 2, ypos[j]); 201 fputchar(' '); 202 tputs(ND, 1, fputchar); 203 fputchar(' '); 204 tputs(ND, 1, fputchar); 205 fputchar(' '); 206 cursor(xpos[j] - 1, ypos[j] + 1); 207 fputchar(' '); 208 tputs(ND, 1, fputchar); 209 fputchar(' '); 210 tputs(DN, 1, fputchar); 211 tputs(BC, 1, fputchar); 212 tputs(BC, 1, fputchar); 213 fputchar(' '); 214 xpos[j] = x; 215 ypos[j] = y; 216 (void)fflush(stdout); 217 } 218 } 219 220 void 221 onsig(dummy) 222 int dummy; 223 { 224 tputs(LL, 1, fputchar); 225 if (TE) 226 tputs(TE, 1, fputchar); 227 (void)fflush(stdout); 228 tcsetattr(1, TCSADRAIN, &old_tty); 229 exit(0); 230 } 231 232 void 233 fputchar(c) 234 int c; 235 { 236 (void)putchar(c); 237 } 238
Indexes created Tue Oct 28 12:10:06 GMT 2025