binaryninja/LowLevelIL/LowLevelILFlowGraphNode.cs at 5a4aa86cbf04defb7a9cc71debec42fe9ac60c14 · tinysec/binaryninja · GitHub

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
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
using System;

namespace BinaryNinja
{
	public class LowLevelILFlowGraphNode : FlowGraphNode
	{
		internal LowLevelILFunction ILFunction { get; set; }

		internal LowLevelILFlowGraphNode(
			LowLevelILFunction  ilFunction,
			IntPtr handle ,
			bool owner)
			: base(handle , owner)
		{
			this.ILFunction = ilFunction;
		}

		internal static LowLevelILFlowGraphNode? NewFromHandleEx(
			LowLevelILFunction  ilFunction,
			IntPtr handle)
		{
			if (handle == IntPtr.Zero)
			{
				return null;
			}

			return new LowLevelILFlowGraphNode(
				ilFunction,
				NativeMethods.BNNewFlowGraphNodeReference(handle) ,
				true
			);
		}

		internal static LowLevelILFlowGraphNode MustNewFromHandleEx(
			LowLevelILFunction  ilFunction,
			IntPtr handle)
		{
			if (handle == IntPtr.Zero)
			{
				throw new ArgumentNullException(nameof(handle));
			}

			return new LowLevelILFlowGraphNode(
				ilFunction,
				NativeMethods.BNNewFlowGraphNodeReference(handle) ,
				true
			);
		}

		internal static LowLevelILFlowGraphNode? TakeHandleEx(
			LowLevelILFunction  ilFunction,
			IntPtr handle)
		{
			if (handle == IntPtr.Zero)
			{
				return null;
			}

			return new LowLevelILFlowGraphNode(
				ilFunction,
				handle,
				true);
		}

		internal static LowLevelILFlowGraphNode MustTakeHandleEx(
			LowLevelILFunction  ilFunction,
			IntPtr handle)
		{
			if (handle == IntPtr.Zero)
			{
				throw new ArgumentNullException(nameof(handle));
			}

			return new LowLevelILFlowGraphNode(
				ilFunction,
				handle,
				true);
		}

		internal static LowLevelILFlowGraphNode? BorrowHandleEx(
			LowLevelILFunction  ilFunction,
			IntPtr handle)
		{
			if (handle == IntPtr.Zero)
			{
				return null;
			}

			return new LowLevelILFlowGraphNode(
				ilFunction,
				handle,
				false);
		}

		internal static LowLevelILFlowGraphNode MustBorrowHandleEx(
			LowLevelILFunction  ilFunction,
			IntPtr handle)
		{
			if (handle == IntPtr.Zero)
			{
				throw new ArgumentNullException(nameof(handle));
			}

			return new LowLevelILFlowGraphNode(
				ilFunction,
				handle,
				false);
		}


		public LowLevelILBasicBlock? BasicBlock
		{
			get
			{
				return LowLevelILBasicBlock.TakeHandleEx(
					this.ILFunction,
					NativeMethods.BNGetFlowGraphBasicBlock(this.handle)
				);
			}

			set
			{
				NativeMethods.BNSetFlowGraphBasicBlock(
					this.handle,
					null == value ? IntPtr.Zero : value.DangerousGetHandle()
				);
			}
		}

		public LowLevelILFlowGraphEdge[] IncomingEdges
		{
			get
			{
				IntPtr arrayPointer = NativeMethods.BNGetFlowGraphNodeIncomingEdges(
					this.handle,
					out ulong arrayLength
				);

				return UnsafeUtils.TakeStructArrayEx<BNFlowGraphEdge,LowLevelILFlowGraphEdge>(
					arrayPointer,
					arrayLength,
					(_native) => LowLevelILFlowGraphEdge.FromNativeEx(
						_native,
						this,
						false
					),
					NativeMethods.BNFreeFlowGraphNodeEdgeList
				);
			}
		}

		public LowLevelILFlowGraphEdge[] OutgoingEdges
		{
			get
			{
				IntPtr arrayPointer = NativeMethods.BNGetFlowGraphNodeOutgoingEdges(
					this.handle,
					out ulong arrayLength
				);

				return UnsafeUtils.TakeStructArrayEx<BNFlowGraphEdge,LowLevelILFlowGraphEdge>(
					arrayPointer,
					arrayLength,
					(_native) => LowLevelILFlowGraphEdge.FromNativeEx(
						_native,
						this,
						true
					),
					NativeMethods.BNFreeFlowGraphNodeEdgeList
				);
			}
		}
	}
}