1 /* $OpenBSD: tputs.c,v 1.2 2015/11/15 07:12:50 deraadt Exp $ */ 2 /* $NetBSD: tputs.c,v 1.5 1995/06/06 08:14:37 pk Exp $ */ 3 4 /* 5 * Copyright (c) 1980, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <ctype.h> 34 #include <curses.h> 35 #undef ospeed 36 37 /* 38 * The following array gives the number of tens of milliseconds per 39 * character for each speed as returned by gtty. Thus since 300 40 * baud returns a 7, there are 33.3 milliseconds per char at 300 baud. 41 */ 42 static 43 short tmspc10[] = { 44 0, 2000, 1333, 909, 743, 666, 500, 333, 166, 83, 55, 41, 20, 10, 5 45 }; 46 47 short ospeed; 48 char PC; 49 50 /* 51 * Put the character string cp out, with padding. 52 * The number of affected lines is affcnt, and the routine 53 * used to output one character is outc. 54 */ 55 void 56 tputs(char *cp, int affcnt, void (*outc)(int)) 57 { 58 int i = 0, mspc10; 59 60 if (cp == 0) 61 return; 62 63 /* 64 * Convert the number representing the delay. 65 */ 66 if (isdigit(*cp)) { 67 do { 68 i = i * 10 + *cp++ - '0'; 69 } while (isdigit(*cp)); 70 } 71 i *= 10; 72 if (*cp == '.') { 73 cp++; 74 if (isdigit(*cp)) 75 i += *cp - '0'; 76 /* 77 * Only one digit to the right of the decimal point. 78 */ 79 while (isdigit(*cp)) 80 cp++; 81 } 82 83 /* 84 * If the delay is followed by a `*', then 85 * multiply by the affected lines count. 86 */ 87 if (*cp == '*') 88 cp++, i *= affcnt; 89 90 /* 91 * The guts of the string. 92 */ 93 while (*cp) 94 (*outc)(*cp++); 95 96 /* 97 * If no delay needed, or output speed is 98 * not comprehensible, then don't try to delay. 99 */ 100 if (i == 0) 101 return; 102 if (ospeed <= 0 || ospeed >= (sizeof tmspc10 / sizeof tmspc10[0])) 103 return; 104 105 /* 106 * Round up by a half a character frame, 107 * and then do the delay. 108 * Too bad there are no user program accessible programmed delays. 109 * Transmitting pad characters slows many 110 * terminals down and also loads the system. 111 */ 112 mspc10 = tmspc10[ospeed]; 113 i += mspc10 / 2; 114 for (i /= mspc10; i > 0; i--) 115 (*outc)(PC); 116 } 117