1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate *
4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate * with the License.
8*7c478bd9Sstevel@tonic-gate *
9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate *
14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate *
20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate * Copyright (c) 2002-2003, Network Appliance, Inc. All rights reserved.
24*7c478bd9Sstevel@tonic-gate */
25*7c478bd9Sstevel@tonic-gate
26*7c478bd9Sstevel@tonic-gate /*
27*7c478bd9Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
28*7c478bd9Sstevel@tonic-gate * Use is subject to license terms.
29*7c478bd9Sstevel@tonic-gate */
30*7c478bd9Sstevel@tonic-gate
31*7c478bd9Sstevel@tonic-gate /*
32*7c478bd9Sstevel@tonic-gate *
33*7c478bd9Sstevel@tonic-gate * MODULE: dat_osd.c
34*7c478bd9Sstevel@tonic-gate *
35*7c478bd9Sstevel@tonic-gate * PURPOSE: Operating System Dependent layer
36*7c478bd9Sstevel@tonic-gate * Description:
37*7c478bd9Sstevel@tonic-gate * Provide OS dependent functions with a canonical DAPL
38*7c478bd9Sstevel@tonic-gate * interface. Designed to be portable and hide OS specific quirks
39*7c478bd9Sstevel@tonic-gate * of common functions.
40*7c478bd9Sstevel@tonic-gate *
41*7c478bd9Sstevel@tonic-gate * $Id: dat_osd.c,v 1.8 2003/08/15 20:09:52 jlentini Exp $
42*7c478bd9Sstevel@tonic-gate */
43*7c478bd9Sstevel@tonic-gate
44*7c478bd9Sstevel@tonic-gate #include "dat_osd.h"
45*7c478bd9Sstevel@tonic-gate
46*7c478bd9Sstevel@tonic-gate
47*7c478bd9Sstevel@tonic-gate /*
48*7c478bd9Sstevel@tonic-gate *
49*7c478bd9Sstevel@tonic-gate * Constants
50*7c478bd9Sstevel@tonic-gate *
51*7c478bd9Sstevel@tonic-gate */
52*7c478bd9Sstevel@tonic-gate
53*7c478bd9Sstevel@tonic-gate #define DAT_DBG_TYPE_ENV "DAT_DBG_TYPE"
54*7c478bd9Sstevel@tonic-gate #define DAT_DBG_DEST_ENV "DAT_DBG_DEST"
55*7c478bd9Sstevel@tonic-gate
56*7c478bd9Sstevel@tonic-gate
57*7c478bd9Sstevel@tonic-gate /*
58*7c478bd9Sstevel@tonic-gate *
59*7c478bd9Sstevel@tonic-gate * Enumerations
60*7c478bd9Sstevel@tonic-gate *
61*7c478bd9Sstevel@tonic-gate */
62*7c478bd9Sstevel@tonic-gate
63*7c478bd9Sstevel@tonic-gate typedef int DAT_OS_DBG_DEST;
64*7c478bd9Sstevel@tonic-gate
65*7c478bd9Sstevel@tonic-gate typedef enum
66*7c478bd9Sstevel@tonic-gate {
67*7c478bd9Sstevel@tonic-gate DAT_OS_DBG_DEST_STDOUT = 0x1,
68*7c478bd9Sstevel@tonic-gate DAT_OS_DBG_DEST_SYSLOG = 0x2,
69*7c478bd9Sstevel@tonic-gate DAT_OS_DBG_DEST_ALL = 0x3
70*7c478bd9Sstevel@tonic-gate } DAT_OS_DBG_DEST_TYPE;
71*7c478bd9Sstevel@tonic-gate
72*7c478bd9Sstevel@tonic-gate
73*7c478bd9Sstevel@tonic-gate /*
74*7c478bd9Sstevel@tonic-gate *
75*7c478bd9Sstevel@tonic-gate * Global Variables
76*7c478bd9Sstevel@tonic-gate *
77*7c478bd9Sstevel@tonic-gate */
78*7c478bd9Sstevel@tonic-gate
79*7c478bd9Sstevel@tonic-gate static DAT_OS_DBG_TYPE_VAL g_dbg_type = 0;
80*7c478bd9Sstevel@tonic-gate static DAT_OS_DBG_DEST g_dbg_dest = DAT_OS_DBG_DEST_STDOUT;
81*7c478bd9Sstevel@tonic-gate
82*7c478bd9Sstevel@tonic-gate
83*7c478bd9Sstevel@tonic-gate /*
84*7c478bd9Sstevel@tonic-gate * Function: dat_os_dbg_init
85*7c478bd9Sstevel@tonic-gate */
86*7c478bd9Sstevel@tonic-gate
87*7c478bd9Sstevel@tonic-gate void
dat_os_dbg_init(void)88*7c478bd9Sstevel@tonic-gate dat_os_dbg_init(void)
89*7c478bd9Sstevel@tonic-gate {
90*7c478bd9Sstevel@tonic-gate char *dbg_type;
91*7c478bd9Sstevel@tonic-gate char *dbg_dest;
92*7c478bd9Sstevel@tonic-gate
93*7c478bd9Sstevel@tonic-gate if (NULL != (dbg_type = dat_os_getenv(DAT_DBG_TYPE_ENV))) {
94*7c478bd9Sstevel@tonic-gate g_dbg_type = dat_os_strtol(dbg_type, NULL, 0);
95*7c478bd9Sstevel@tonic-gate }
96*7c478bd9Sstevel@tonic-gate
97*7c478bd9Sstevel@tonic-gate if (NULL != (dbg_dest = dat_os_getenv(DAT_DBG_DEST_ENV))) {
98*7c478bd9Sstevel@tonic-gate g_dbg_dest = dat_os_strtol(dbg_dest, NULL, 0);
99*7c478bd9Sstevel@tonic-gate }
100*7c478bd9Sstevel@tonic-gate }
101*7c478bd9Sstevel@tonic-gate
102*7c478bd9Sstevel@tonic-gate
103*7c478bd9Sstevel@tonic-gate /*
104*7c478bd9Sstevel@tonic-gate * Function: dat_os_dbg_print
105*7c478bd9Sstevel@tonic-gate */
106*7c478bd9Sstevel@tonic-gate
107*7c478bd9Sstevel@tonic-gate void
dat_os_dbg_print(DAT_OS_DBG_TYPE_VAL type,const char * fmt,...)108*7c478bd9Sstevel@tonic-gate dat_os_dbg_print(
109*7c478bd9Sstevel@tonic-gate DAT_OS_DBG_TYPE_VAL type,
110*7c478bd9Sstevel@tonic-gate const char *fmt,
111*7c478bd9Sstevel@tonic-gate ...)
112*7c478bd9Sstevel@tonic-gate {
113*7c478bd9Sstevel@tonic-gate if ((DAT_OS_DBG_TYPE_ERROR == type) || (type & g_dbg_type)) {
114*7c478bd9Sstevel@tonic-gate va_list args;
115*7c478bd9Sstevel@tonic-gate
116*7c478bd9Sstevel@tonic-gate va_start(args, fmt);
117*7c478bd9Sstevel@tonic-gate
118*7c478bd9Sstevel@tonic-gate if (DAT_OS_DBG_DEST_STDOUT & g_dbg_dest) {
119*7c478bd9Sstevel@tonic-gate (void) vfprintf(stdout, fmt, args);
120*7c478bd9Sstevel@tonic-gate (void) fflush(stdout);
121*7c478bd9Sstevel@tonic-gate }
122*7c478bd9Sstevel@tonic-gate
123*7c478bd9Sstevel@tonic-gate if (DAT_OS_DBG_DEST_SYSLOG & g_dbg_dest) {
124*7c478bd9Sstevel@tonic-gate vsyslog(LOG_USER | LOG_DEBUG, fmt, args);
125*7c478bd9Sstevel@tonic-gate }
126*7c478bd9Sstevel@tonic-gate
127*7c478bd9Sstevel@tonic-gate va_end(args);
128*7c478bd9Sstevel@tonic-gate }
129*7c478bd9Sstevel@tonic-gate }
130*7c478bd9Sstevel@tonic-gate
131*7c478bd9Sstevel@tonic-gate
132*7c478bd9Sstevel@tonic-gate /*
133*7c478bd9Sstevel@tonic-gate * Function: dat_os_library_load
134*7c478bd9Sstevel@tonic-gate */
135*7c478bd9Sstevel@tonic-gate
136*7c478bd9Sstevel@tonic-gate DAT_RETURN
dat_os_library_load(const char * library_path,DAT_OS_LIBRARY_HANDLE * library_handle_ptr)137*7c478bd9Sstevel@tonic-gate dat_os_library_load(
138*7c478bd9Sstevel@tonic-gate const char *library_path,
139*7c478bd9Sstevel@tonic-gate DAT_OS_LIBRARY_HANDLE *library_handle_ptr)
140*7c478bd9Sstevel@tonic-gate {
141*7c478bd9Sstevel@tonic-gate DAT_OS_LIBRARY_HANDLE library_handle;
142*7c478bd9Sstevel@tonic-gate
143*7c478bd9Sstevel@tonic-gate if (NULL != (library_handle = dlopen(library_path, RTLD_NOW))) {
144*7c478bd9Sstevel@tonic-gate if (NULL != library_handle_ptr) {
145*7c478bd9Sstevel@tonic-gate *library_handle_ptr = library_handle;
146*7c478bd9Sstevel@tonic-gate }
147*7c478bd9Sstevel@tonic-gate
148*7c478bd9Sstevel@tonic-gate return (DAT_SUCCESS);
149*7c478bd9Sstevel@tonic-gate } else {
150*7c478bd9Sstevel@tonic-gate dat_os_dbg_print(DAT_OS_DBG_TYPE_ERROR,
151*7c478bd9Sstevel@tonic-gate "DAT: library load failure: %s\n",
152*7c478bd9Sstevel@tonic-gate dlerror());
153*7c478bd9Sstevel@tonic-gate return (DAT_INTERNAL_ERROR);
154*7c478bd9Sstevel@tonic-gate }
155*7c478bd9Sstevel@tonic-gate }
156*7c478bd9Sstevel@tonic-gate
157*7c478bd9Sstevel@tonic-gate
158*7c478bd9Sstevel@tonic-gate /*
159*7c478bd9Sstevel@tonic-gate * Function: dat_os_library_unload
160*7c478bd9Sstevel@tonic-gate */
161*7c478bd9Sstevel@tonic-gate
162*7c478bd9Sstevel@tonic-gate DAT_RETURN
dat_os_library_unload(const DAT_OS_LIBRARY_HANDLE library_handle)163*7c478bd9Sstevel@tonic-gate dat_os_library_unload(
164*7c478bd9Sstevel@tonic-gate const DAT_OS_LIBRARY_HANDLE library_handle)
165*7c478bd9Sstevel@tonic-gate {
166*7c478bd9Sstevel@tonic-gate if (0 != dlclose(library_handle)) {
167*7c478bd9Sstevel@tonic-gate return (DAT_INTERNAL_ERROR);
168*7c478bd9Sstevel@tonic-gate } else {
169*7c478bd9Sstevel@tonic-gate return (DAT_SUCCESS);
170*7c478bd9Sstevel@tonic-gate }
171*7c478bd9Sstevel@tonic-gate }
172