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 #pragma ident "%Z%%M% %I% %E% SMI"
33
34 /*LINTLIBRARY*/
35
36 #if 0
37 static char
38 sccsid[] = "@(#)tputs.c 1.5 88/02/08 SMI"; /* from UCB 4.1 6/27/83 */
39 #endif
40
41 #include <sys/types.h>
42 #include <sgtty.h>
43 #include <ctype.h>
44
45 /*
46 * The following array gives the number of tens of milliseconds per
47 * character for each speed as returned by gtty. Thus since 300
48 * baud returns a 7, there are 33.3 milliseconds per char at 300 baud.
49 */
50 static
51 short tmspc10[] = {
52 0, 2000, 1333, 909, 743, 666, 500, 333, 166, 83, 55, 41, 20, 10, 5
53 };
54
55 short ospeed;
56 char PC;
57
58 /*
59 * Put the character string cp out, with padding.
60 * The number of affected lines is affcnt, and the routine
61 * used to output one character is outc.
62 *
63 * Note:
64 * Return value is provided only because prototype is defined as such;
65 * no real meaning.
66 */
67
68 int
tputs(char * cp,int affcnt,int (* outc)(char))69 tputs(char *cp, int affcnt, int (*outc)(char))
70 {
71 int i = 0;
72 int mspc10;
73
74 if (cp == 0)
75 return (0);
76
77 /*
78 * Convert the number representing the delay.
79 */
80 if (isdigit(*cp)) {
81 do
82 i = i * 10 + *cp++ - '0';
83 while (isdigit(*cp));
84 }
85 i *= 10;
86 if (*cp == '.') {
87 cp++;
88 if (isdigit(*cp))
89 i += *cp - '0';
90 /*
91 * Only one digit to the right of the decimal point.
92 */
93 while (isdigit(*cp))
94 cp++;
95 }
96
97 /*
98 * If the delay is followed by a `*', then
99 * multiply by the affected lines count.
100 */
101 if (*cp == '*')
102 cp++, i *= affcnt;
103
104 /*
105 * The guts of the string.
106 */
107 while (*cp)
108 (*outc)(*cp++);
109
110 /*
111 * If no delay needed, or output speed is
112 * not comprehensible, then don't try to delay.
113 */
114 if (i == 0)
115 return (0);
116 if (ospeed <= 0 || ospeed >= (sizeof (tmspc10) / sizeof (tmspc10[0])))
117 return (0);
118
119 /*
120 * Round up by a half a character frame,
121 * and then do the delay.
122 * Too bad there are no user program accessible programmed delays.
123 * Transmitting pad characters slows many
124 * terminals down and also loads the system.
125 */
126 mspc10 = tmspc10[ospeed];
127 i += mspc10 / 2;
128 for (i /= mspc10; i > 0; i--)
129 (*outc)(PC);
130 return (0);
131 }
132