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) 1988 AT&T */
28 /* All Rights Reserved */
29
30 /*
31 * University Copyright- Copyright (c) 1982, 1986, 1988
32 * The Regents of the University of California
33 * All Rights Reserved
34 *
35 * University Acknowledgment- Portions of this document are derived from
36 * software developed by the University of California, Berkeley, and its
37 * contributors.
38 */
39
40 /*LINTLIBRARY*/
41
42 #include <sys/types.h>
43 #include <string.h>
44 #include <unistd.h>
45 #include "curses_inc.h"
46
47 /*
48 * Set a soft label.
49 *
50 * n: label number
51 * lab: the string
52 * f: 0, 1, 2 for left, center, right-justification
53 */
54
55 int
slk_set(int n,char * lab,int f)56 slk_set(int n, char *lab, int f)
57 {
58 SLK_MAP *slk = SP->slk;
59 int len, slklen = slk->_len, left;
60 char *cp, nlab[LABLEN + 1];
61
62 if ((slk == NULL) || f < 0 || f > 2 || n < 1 || n > slk->_num)
63 return (ERR);
64
65 /* 0-indexing internally */
66 n--;
67
68 if (lab == NULL) {
69 lab = "";
70
71 } else {
72 /* chop lengthy label */
73 /* LINTED */
74 if ((len = (int) strlen(lab)) > slklen)
75 lab[len = slklen] = '\0';
76 }
77
78 /* make the new display label */
79 for (cp = nlab + slklen - 1; cp >= nlab; cp--)
80 *cp = ' ';
81 nlab[slklen] = '\0';
82 if (f == 0)
83 left = 0;
84 else
85 left = (slklen - len) / ((f == 1) ? 2 : 1);
86
87 (void) memcpy(nlab + left, lab, len);
88
89 if (strcmp(slk->_ldis[n], nlab) != 0) {
90 (void) memcpy(slk->_lval[n], lab, len + 1);
91 (void) memcpy(slk->_ldis[n], nlab, slklen + 1);
92 slk->_changed = slk->_lch[n] = TRUE;
93 }
94
95 return (OK);
96 }
97