1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 1997 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
28 /* All Rights Reserved */
29
30 /* Copyright (c) 1979 Regents of the University of California */
31
32 /*LINTLIBRARY*/
33
34 #if 0
35 static char
36 sccsid[] = "@(#)tputs.c 1.5 88/02/08 SMI"; /* from UCB 4.1 6/27/83 */
37 #endif
38
39 #include <sys/types.h>
40 #include <sgtty.h>
41 #include <ctype.h>
42
43 /*
44 * The following array gives the number of tens of milliseconds per
45 * character for each speed as returned by gtty. Thus since 300
46 * baud returns a 7, there are 33.3 milliseconds per char at 300 baud.
47 */
48 static
49 short tmspc10[] = {
50 0, 2000, 1333, 909, 743, 666, 500, 333, 166, 83, 55, 41, 20, 10, 5
51 };
52
53 short ospeed;
54 char PC;
55
56 /*
57 * Put the character string cp out, with padding.
58 * The number of affected lines is affcnt, and the routine
59 * used to output one character is outc.
60 *
61 * Note:
62 * Return value is provided only because prototype is defined as such;
63 * no real meaning.
64 */
65
66 int
tputs(char * cp,int affcnt,int (* outc)(char))67 tputs(char *cp, int affcnt, int (*outc)(char))
68 {
69 int i = 0;
70 int mspc10;
71
72 if (cp == 0)
73 return (0);
74
75 /*
76 * Convert the number representing the delay.
77 */
78 if (isdigit(*cp)) {
79 do
80 i = i * 10 + *cp++ - '0';
81 while (isdigit(*cp));
82 }
83 i *= 10;
84 if (*cp == '.') {
85 cp++;
86 if (isdigit(*cp))
87 i += *cp - '0';
88 /*
89 * Only one digit to the right of the decimal point.
90 */
91 while (isdigit(*cp))
92 cp++;
93 }
94
95 /*
96 * If the delay is followed by a `*', then
97 * multiply by the affected lines count.
98 */
99 if (*cp == '*')
100 cp++, i *= affcnt;
101
102 /*
103 * The guts of the string.
104 */
105 while (*cp)
106 (*outc)(*cp++);
107
108 /*
109 * If no delay needed, or output speed is
110 * not comprehensible, then don't try to delay.
111 */
112 if (i == 0)
113 return (0);
114 if (ospeed <= 0 || ospeed >= (sizeof (tmspc10) / sizeof (tmspc10[0])))
115 return (0);
116
117 /*
118 * Round up by a half a character frame,
119 * and then do the delay.
120 * Too bad there are no user program accessible programmed delays.
121 * Transmitting pad characters slows many
122 * terminals down and also loads the system.
123 */
124 mspc10 = tmspc10[ospeed];
125 i += mspc10 / 2;
126 for (i /= mspc10; i > 0; i--)
127 (*outc)(PC);
128 return (0);
129 }
130