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 1990 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 /*
30 * misc routines
31 */
32
33 #include <stdio.h>
34 #include <sys/types.h>
35 #include "codeset.h"
36 #include "mbextern.h"
37 #include <dlfcn.h>
38
39 static void *handle = (void *)NULL; /* initialize it with NULL */
40
41 /*
42 * Close current library library
43 */
44 int
_ml_close_library(void)45 _ml_close_library(void)
46 {
47 if (handle == (void *)NULL) {
48 _code_set_info.open_flag = NULL;
49 return (-1);
50 }
51
52 dlclose(handle);
53 _code_set_info.open_flag = NULL;
54 handle = (void *)NULL;
55 return (0);
56 }
57
58 /*
59 * Open the given library
60 */
61 void *
_ml_open_library(void)62 _ml_open_library(void)
63 {
64 char buf[BUFSIZ];
65
66 if (handle != (void *)NULL) /* This library is already opened */
67 return (handle);
68
69 /*
70 * Open the given library
71 */
72 strcpy(buf, LIBRARY_PATH);
73 strcat(buf, _code_set_info.code_name);
74 strcat(buf, ".so");
75 #ifdef DEBUG
76 printf ("ml_open_library: buf = '%s'\n", buf);
77 #endif
78 handle = dlopen(buf, 1);
79 if (handle != (void *)NULL)
80 _code_set_info.open_flag = 1;
81 #ifdef DEBUG
82 else
83 printf ("_ml_open_library: dlopen failed\n");
84 #endif
85 return (handle);
86 }
87