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 #pragma ident "%Z%%M% %I% %E% SMI"
23
24
25 /*
26 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
27 * Use is subject to license terms.
28 */
29
30 #include <stdio.h>
31
32 extern int _error(int do_perror, char *fmt, ...);
33 #define NO_PERROR 0
34 #define PERROR 1
35
36 /*
37 * Icon loader for eeprom command.
38 *
39 * Based on libsuntool/icon/icon_load.c 10.10 88/02/08
40 * See <suntool/icon_load.h> for icon file format.
41 */
42
43 int
loadlogo(char * name,int w,int h,char * logo)44 loadlogo(char *name, int w, int h, char *logo)
45 {
46 FILE *f;
47 int c = 0;
48 unsigned int val;
49 int icw = 64, ich = 64, bits = 16;
50 int count;
51
52 if (!(f = fopen(name, "r")))
53 return (_error(PERROR, "cannot open %s", name));
54
55 do {
56 int nval;
57 char slash;
58
59 if ((c = fscanf(f, "%*[^DFHVW*]")) == EOF)
60 break;
61
62 switch (c = getc(f)) {
63 case 'D':
64 if ((c = fscanf(f, "epth=%d", &nval)) == 1 &&
65 nval != 1)
66 goto badform;
67 break;
68 case 'F':
69 if ((c = fscanf(f, "ormat_version=%d", &nval)) == 1 &&
70 nval != 1)
71 goto badform;
72 break;
73 case 'H':
74 c = fscanf(f, "eight=%d", &ich);
75 break;
76 case 'V':
77 c = fscanf(f, "alid_bits_per_item=%d", &bits);
78 break;
79 case 'W':
80 c = fscanf(f, "idth=%d", &icw);
81 break;
82 case '*':
83 c = fscanf(f, "%c", &slash);
84 if (slash == '/')
85 goto eoh; /* end of header */
86 else
87 (void) ungetc(slash, f);
88 break;
89 }
90 } while (c != EOF);
91
92 eoh:
93 if (c == EOF ||
94 icw != w || ich != h ||
95 bits != 16 && bits != 32) {
96 badform:
97 (void) fclose(f);
98 return (_error(NO_PERROR, "header format error in %s", name));
99 }
100
101 for (count = ((w + (bits - 1)) / bits) * h; count > 0; count--) {
102 c = fscanf(f, " 0x%x,", &val);
103 if (c == 0 || c == EOF)
104 break;
105
106 switch (bits) {
107 case 32:
108 *logo++ = val >> 24;
109 *logo++ = val >> 16;
110 /* FALLTHRU */
111 case 16:
112 *logo++ = val >> 8;
113 *logo++ = val;
114 break;
115 }
116 }
117
118 (void) fclose(f);
119
120 if (count > 0)
121 return (_error(NO_PERROR, "data format error in %s", name));
122
123 return (0);
124 }
125