1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
/*
* WEVT opcode functions
*
* Copyright (C) 2011-2016, Joachim Metz <joachim.metz@gmail.com>
*
* Refer to AUTHORS for acknowledgements.
*
* This software is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this software. If not, see <http://www.gnu.org/licenses/>.
*/
#include <common.h>
#include <memory.h>
#include <types.h>
#include "libwrc_definitions.h"
#include "libwrc_libcerror.h"
#include "libwrc_libfwevt.h"
#include "libwrc_types.h"
#include "libwrc_wevt_opcode.h"
/* Creates an opcode
* Make sure the value opcode is referencing, is set to NULL
* Returns 1 if successful or -1 on error
*/
int libwrc_wevt_opcode_initialize(
libwrc_wevt_opcode_t **opcode,
libfwevt_opcode_t *opcode_descriptor,
libcerror_error_t **error )
{
libwrc_internal_wevt_opcode_t *internal_opcode = NULL;
static char *function = "libwrc_wevt_opcode_initialize";
if( opcode == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid opcode.",
function );
return( -1 );
}
if( *opcode != NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
"%s: invalid opcode value already set.",
function );
return( -1 );
}
if( opcode_descriptor == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid opcode descriptor.",
function );
return( -1 );
}
internal_opcode = memory_allocate_structure(
libwrc_internal_wevt_opcode_t );
if( internal_opcode == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_MEMORY,
LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
"%s: unable to create opcode.",
function );
goto on_error;
}
if( memory_set(
internal_opcode,
0,
sizeof( libwrc_internal_wevt_opcode_t ) ) == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_MEMORY,
LIBCERROR_MEMORY_ERROR_SET_FAILED,
"%s: unable to clear opcode.",
function );
goto on_error;
}
internal_opcode->opcode_descriptor = opcode_descriptor;
*opcode = (libwrc_wevt_opcode_t *) internal_opcode;
return( 1 );
on_error:
if( internal_opcode != NULL )
{
memory_free(
internal_opcode );
}
return( -1 );
}
/* Frees an opcode
* Returns 1 if successful or -1 on error
*/
int libwrc_wevt_opcode_free(
libwrc_wevt_opcode_t **opcode,
libcerror_error_t **error )
{
libwrc_internal_wevt_opcode_t *internal_opcode = NULL;
static char *function = "libwrc_wevt_opcode_free";
if( opcode == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid opcode.",
function );
return( -1 );
}
if( *opcode != NULL )
{
internal_opcode = (libwrc_internal_wevt_opcode_t *) *opcode;
*opcode = NULL;
memory_free(
internal_opcode );
}
return( 1 );
}
|
