1 schuur 1.1 //%2003////////////////////////////////////////////////////////////////////////
2 //
3 // Copyright (c) 2000, 2001, 2002 BMC Software, Hewlett-Packard Development
4 // Company, L. P., IBM Corp., The Open Group, Tivoli Systems.
5 // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L. P.;
6 // IBM Corp.; EMC Corporation, The Open Group.
7 //
8 // Permission is hereby granted, free of charge, to any person obtaining a copy
9 // of this software and associated documentation files (the "Software"), to
10 // deal in the Software without restriction, including without limitation the
11 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
12 // sell copies of the Software, and to permit persons to whom the Software is
13 // furnished to do so, subject to the following conditions:
14 //
15 // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
16 // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
17 // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
18 // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
19 // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
20 // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
21 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 schuur 1.1 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 //
24 //==============================================================================
25 //
26 // Author: Frank Scheffler
27 //
28 // Modified By: Adrian Schuur (schuur@de.ibm.com)
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29 r.kieninger 1.2 // Marek Szermutzky, IBM (mszermutzky@de.ibm.com)
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30 schuur 1.1 //
31 //%/////////////////////////////////////////////////////////////////////////////
32
33 /*!
34 \file tool.c
35 \brief General tooling facility.
36
37 This module offers general tooling methods that may be used by different
38 components on the CIMOM as well as on the remote side.
39
40 \author Frank Scheffler
41 */
42
43 #include <stdio.h>
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44 r.kieninger 1.2 #ifdef PEGASUS_PLATFORM_ZOS_ZSERIES_IBM
45 #include <dll.h>
46 #include <errno.h>
47 #else
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48 schuur 1.1 #include <dlfcn.h>
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49 r.kieninger 1.2 #endif
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50 schuur 1.1 #include "tool.h"
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51 r.kieninger 1.2 #include "debug.h"
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52 schuur 1.1
53 #define GENERIC_ENTRY_POINT(n) \
54 typedef CMPI##n##MI * (* GENERIC_##n##MI) ( CMPIBroker * broker, \
55 CMPIContext * ctx, \
56 const char * provider )
57 #define FIXED_ENTRY_POINT(n) \
58 typedef CMPI##n##MI * (* FIXED_##n##MI) ( CMPIBroker * broker, \
59 CMPIContext * ctx )
60
61 #define LOAD_MI(n) \
62 GENERIC_ENTRY_POINT(n); \
63 FIXED_ENTRY_POINT(n); \
64 \
65 CMPI##n##MI * tool_load_##n##MI ( const char * provider, \
66 void * library, \
67 CMPIBroker * broker, \
68 CMPIContext * ctx ) \
69 { \
70 GENERIC_##n##MI g = \
71 (GENERIC_##n##MI) \
72 __get_generic_entry_point ( library, #n ); \
73 schuur 1.1 \
74 if ( g == NULL ) { \
75 FIXED_##n##MI f = \
76 (FIXED_##n##MI) \
77 __get_fixed_entry_point ( provider, \
78 library, \
79 #n ); \
80 \
81 if ( f == NULL ) return NULL; \
82 return ( f ) ( broker, ctx ); \
83 } \
84 return ( g ) ( broker, ctx, provider ); \
85 }
86
87
88 /*****************************************************************************/
89
90 //! Loads a dynamic load library.
91 /*!
92 Loads the libary named lib<libname>.so using dlopen().
93
94 schuur 1.1 \param libname the library name.
95 \return the library handle.
96 */
97 void * tool_load_lib ( const char * libname )
98 {
99 char filename[255];
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100 r.kieninger 1.2 void * dllhand;
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101 schuur 1.1 sprintf ( filename, "lib%s.so", libname );
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102 r.kieninger 1.2 #ifndef PEGASUS_PLATFORM_ZOS_ZSERIES_IBM
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103 schuur 1.1 return dlopen ( filename, RTLD_LAZY );
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104 r.kieninger 1.2 #else
105 dllhand = (void *) dllload ( filename );
106 if (dllhand == 0) TRACE_CRITICAL( ("Trying to load library: %s failed with %s\n", libname, strerror(errno)) );
107 return dllhand;
108 #endif
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109 schuur 1.1 }
110
111
112 static void * __get_generic_entry_point ( void * library,
113 const char * ptype )
114 {
115 char entry_point[255];
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116 r.kieninger 1.2 void * dll_entry;
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117 schuur 1.1 sprintf ( entry_point, "_Generic_Create_%sMI", ptype );
118
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119 r.kieninger 1.2 #ifndef PEGASUS_PLATFORM_ZOS_ZSERIES_IBM
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120 schuur 1.1 return dlsym ( library, entry_point );
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121 r.kieninger 1.2 #else
122 dll_entry = (void*) dllqueryfn ( (dllhandle *) library, entry_point );
123 if (dll_entry == 0) TRACE_CRITICAL((stderr,"Getting generic entry point: %s failed with %s\n", entry_point, strerror(errno)));
124 return dll_entry;
125 #endif
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126 schuur 1.1 }
127
128
129 static void * __get_fixed_entry_point ( const char * provider,
130 void * library,
131 const char * ptype )
132 {
133 char entry_point[255];
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134 r.kieninger 1.2 void * dll_entry;
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135 schuur 1.1 sprintf ( entry_point, "%s_Create_%sMI", provider, ptype );
136
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137 r.kieninger 1.2 #ifndef PEGASUS_PLATFORM_ZOS_ZSERIES_IBM
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138 schuur 1.1 return dlsym ( library, entry_point );
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139 r.kieninger 1.2 #else
140 dll_entry = (void*)dllqueryfn ( (dllhandle*) library, entry_point );
141 if (dll_entry == 0) TRACE_CRITICAL((stderr,"Getting fixed entry point: %s failed with %s\n", entry_point, strerror(errno)));
142 return dll_entry;
143 #endif
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144 schuur 1.1 }
145
146
147 LOAD_MI(Instance);
148 LOAD_MI(Association);
149 LOAD_MI(Method);
150 LOAD_MI(Property);
151 LOAD_MI(Indication);
152
153
154 /****************************************************************************/
155
156 /*** Local Variables: ***/
157 /*** mode: C ***/
158 /*** c-basic-offset: 8 ***/
159 /*** End: ***/
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