1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright (c) 2002-2003, Network Appliance, Inc. All rights reserved.
24*0Sstevel@tonic-gate */
25*0Sstevel@tonic-gate
26*0Sstevel@tonic-gate /*
27*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
28*0Sstevel@tonic-gate * Use is subject to license terms.
29*0Sstevel@tonic-gate */
30*0Sstevel@tonic-gate
31*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
32*0Sstevel@tonic-gate
33*0Sstevel@tonic-gate /*
34*0Sstevel@tonic-gate *
35*0Sstevel@tonic-gate * MODULE: dat_osd.c
36*0Sstevel@tonic-gate *
37*0Sstevel@tonic-gate * PURPOSE: Operating System Dependent layer
38*0Sstevel@tonic-gate * Description:
39*0Sstevel@tonic-gate * Provide OS dependent functions with a canonical DAPL
40*0Sstevel@tonic-gate * interface. Designed to be portable and hide OS specific quirks
41*0Sstevel@tonic-gate * of common functions.
42*0Sstevel@tonic-gate *
43*0Sstevel@tonic-gate * $Id: dat_osd.c,v 1.8 2003/08/15 20:09:52 jlentini Exp $
44*0Sstevel@tonic-gate */
45*0Sstevel@tonic-gate
46*0Sstevel@tonic-gate #include "dat_osd.h"
47*0Sstevel@tonic-gate
48*0Sstevel@tonic-gate
49*0Sstevel@tonic-gate /*
50*0Sstevel@tonic-gate *
51*0Sstevel@tonic-gate * Constants
52*0Sstevel@tonic-gate *
53*0Sstevel@tonic-gate */
54*0Sstevel@tonic-gate
55*0Sstevel@tonic-gate #define DAT_DBG_TYPE_ENV "DAT_DBG_TYPE"
56*0Sstevel@tonic-gate #define DAT_DBG_DEST_ENV "DAT_DBG_DEST"
57*0Sstevel@tonic-gate
58*0Sstevel@tonic-gate
59*0Sstevel@tonic-gate /*
60*0Sstevel@tonic-gate *
61*0Sstevel@tonic-gate * Enumerations
62*0Sstevel@tonic-gate *
63*0Sstevel@tonic-gate */
64*0Sstevel@tonic-gate
65*0Sstevel@tonic-gate typedef int DAT_OS_DBG_DEST;
66*0Sstevel@tonic-gate
67*0Sstevel@tonic-gate typedef enum
68*0Sstevel@tonic-gate {
69*0Sstevel@tonic-gate DAT_OS_DBG_DEST_STDOUT = 0x1,
70*0Sstevel@tonic-gate DAT_OS_DBG_DEST_SYSLOG = 0x2,
71*0Sstevel@tonic-gate DAT_OS_DBG_DEST_ALL = 0x3
72*0Sstevel@tonic-gate } DAT_OS_DBG_DEST_TYPE;
73*0Sstevel@tonic-gate
74*0Sstevel@tonic-gate
75*0Sstevel@tonic-gate /*
76*0Sstevel@tonic-gate *
77*0Sstevel@tonic-gate * Global Variables
78*0Sstevel@tonic-gate *
79*0Sstevel@tonic-gate */
80*0Sstevel@tonic-gate
81*0Sstevel@tonic-gate static DAT_OS_DBG_TYPE_VAL g_dbg_type = 0;
82*0Sstevel@tonic-gate static DAT_OS_DBG_DEST g_dbg_dest = DAT_OS_DBG_DEST_STDOUT;
83*0Sstevel@tonic-gate
84*0Sstevel@tonic-gate
85*0Sstevel@tonic-gate /*
86*0Sstevel@tonic-gate * Function: dat_os_dbg_init
87*0Sstevel@tonic-gate */
88*0Sstevel@tonic-gate
89*0Sstevel@tonic-gate void
dat_os_dbg_init(void)90*0Sstevel@tonic-gate dat_os_dbg_init(void)
91*0Sstevel@tonic-gate {
92*0Sstevel@tonic-gate char *dbg_type;
93*0Sstevel@tonic-gate char *dbg_dest;
94*0Sstevel@tonic-gate
95*0Sstevel@tonic-gate if (NULL != (dbg_type = dat_os_getenv(DAT_DBG_TYPE_ENV))) {
96*0Sstevel@tonic-gate g_dbg_type = dat_os_strtol(dbg_type, NULL, 0);
97*0Sstevel@tonic-gate }
98*0Sstevel@tonic-gate
99*0Sstevel@tonic-gate if (NULL != (dbg_dest = dat_os_getenv(DAT_DBG_DEST_ENV))) {
100*0Sstevel@tonic-gate g_dbg_dest = dat_os_strtol(dbg_dest, NULL, 0);
101*0Sstevel@tonic-gate }
102*0Sstevel@tonic-gate }
103*0Sstevel@tonic-gate
104*0Sstevel@tonic-gate
105*0Sstevel@tonic-gate /*
106*0Sstevel@tonic-gate * Function: dat_os_dbg_print
107*0Sstevel@tonic-gate */
108*0Sstevel@tonic-gate
109*0Sstevel@tonic-gate void
dat_os_dbg_print(DAT_OS_DBG_TYPE_VAL type,const char * fmt,...)110*0Sstevel@tonic-gate dat_os_dbg_print(
111*0Sstevel@tonic-gate DAT_OS_DBG_TYPE_VAL type,
112*0Sstevel@tonic-gate const char *fmt,
113*0Sstevel@tonic-gate ...)
114*0Sstevel@tonic-gate {
115*0Sstevel@tonic-gate if ((DAT_OS_DBG_TYPE_ERROR == type) || (type & g_dbg_type)) {
116*0Sstevel@tonic-gate va_list args;
117*0Sstevel@tonic-gate
118*0Sstevel@tonic-gate va_start(args, fmt);
119*0Sstevel@tonic-gate
120*0Sstevel@tonic-gate if (DAT_OS_DBG_DEST_STDOUT & g_dbg_dest) {
121*0Sstevel@tonic-gate (void) vfprintf(stdout, fmt, args);
122*0Sstevel@tonic-gate (void) fflush(stdout);
123*0Sstevel@tonic-gate }
124*0Sstevel@tonic-gate
125*0Sstevel@tonic-gate if (DAT_OS_DBG_DEST_SYSLOG & g_dbg_dest) {
126*0Sstevel@tonic-gate vsyslog(LOG_USER | LOG_DEBUG, fmt, args);
127*0Sstevel@tonic-gate }
128*0Sstevel@tonic-gate
129*0Sstevel@tonic-gate va_end(args);
130*0Sstevel@tonic-gate }
131*0Sstevel@tonic-gate }
132*0Sstevel@tonic-gate
133*0Sstevel@tonic-gate
134*0Sstevel@tonic-gate /*
135*0Sstevel@tonic-gate * Function: dat_os_library_load
136*0Sstevel@tonic-gate */
137*0Sstevel@tonic-gate
138*0Sstevel@tonic-gate DAT_RETURN
dat_os_library_load(const char * library_path,DAT_OS_LIBRARY_HANDLE * library_handle_ptr)139*0Sstevel@tonic-gate dat_os_library_load(
140*0Sstevel@tonic-gate const char *library_path,
141*0Sstevel@tonic-gate DAT_OS_LIBRARY_HANDLE *library_handle_ptr)
142*0Sstevel@tonic-gate {
143*0Sstevel@tonic-gate DAT_OS_LIBRARY_HANDLE library_handle;
144*0Sstevel@tonic-gate
145*0Sstevel@tonic-gate if (NULL != (library_handle = dlopen(library_path, RTLD_NOW))) {
146*0Sstevel@tonic-gate if (NULL != library_handle_ptr) {
147*0Sstevel@tonic-gate *library_handle_ptr = library_handle;
148*0Sstevel@tonic-gate }
149*0Sstevel@tonic-gate
150*0Sstevel@tonic-gate return (DAT_SUCCESS);
151*0Sstevel@tonic-gate } else {
152*0Sstevel@tonic-gate dat_os_dbg_print(DAT_OS_DBG_TYPE_ERROR,
153*0Sstevel@tonic-gate "DAT: library load failure: %s\n",
154*0Sstevel@tonic-gate dlerror());
155*0Sstevel@tonic-gate return (DAT_INTERNAL_ERROR);
156*0Sstevel@tonic-gate }
157*0Sstevel@tonic-gate }
158*0Sstevel@tonic-gate
159*0Sstevel@tonic-gate
160*0Sstevel@tonic-gate /*
161*0Sstevel@tonic-gate * Function: dat_os_library_unload
162*0Sstevel@tonic-gate */
163*0Sstevel@tonic-gate
164*0Sstevel@tonic-gate DAT_RETURN
dat_os_library_unload(const DAT_OS_LIBRARY_HANDLE library_handle)165*0Sstevel@tonic-gate dat_os_library_unload(
166*0Sstevel@tonic-gate const DAT_OS_LIBRARY_HANDLE library_handle)
167*0Sstevel@tonic-gate {
168*0Sstevel@tonic-gate if (0 != dlclose(library_handle)) {
169*0Sstevel@tonic-gate return (DAT_INTERNAL_ERROR);
170*0Sstevel@tonic-gate } else {
171*0Sstevel@tonic-gate return (DAT_SUCCESS);
172*0Sstevel@tonic-gate }
173*0Sstevel@tonic-gate }
174