blob: 3817ecbf6b0698c98cc69b6ee90bd85625defbc5 (
plain)
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
|
//===-- StringExtractor.h ---------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef utility_StringExtractor_h_
#define utility_StringExtractor_h_
// C Includes
// C++ Includes
#include <string>
#include <stdint.h>
// Other libraries and framework includes
// Project includes
class StringExtractor
{
public:
enum {
BigEndian = 0,
LittleEndian = 1
};
//------------------------------------------------------------------
// Constructors and Destructors
//------------------------------------------------------------------
StringExtractor();
StringExtractor(const char *packet_cstr);
StringExtractor(const StringExtractor& rhs);
virtual ~StringExtractor();
//------------------------------------------------------------------
// Operators
//------------------------------------------------------------------
const StringExtractor&
operator=(const StringExtractor& rhs);
// Returns true if the file position is still valid for the data
// contained in this string extractor object.
bool
IsGood() const
{
return m_index != UINT32_MAX;
}
uint32_t
GetFilePos () const
{
return m_index;
}
void
SetFilePos (uint32_t idx)
{
m_index = idx;
}
void
Clear ()
{
m_packet.clear();
m_index = 0;
}
std::string &
GetStringRef ()
{
return m_packet;
}
bool
Empty()
{
return m_packet.empty();
}
uint32_t
GetBytesLeft ()
{
if (m_index < m_packet.size())
return m_packet.size() - m_index;
return 0;
}
char
GetChar (char fail_value = '\0');
int8_t
GetHexS8 (int8_t fail_value = 0);
uint8_t
GetHexU8 (uint8_t fail_value = 0);
bool
GetNameColonValue (std::string &name, std::string &value);
uint32_t
GetHexMaxU32 (bool little_endian, uint32_t fail_value);
uint64_t
GetHexMaxU64 (bool little_endian, uint64_t fail_value);
size_t
GetHexBytes (void *dst, size_t dst_len, uint8_t fail_fill_value);
uint64_t
GetHexWithFixedSize (uint32_t byte_size, bool little_endian, uint64_t fail_value);
protected:
//------------------------------------------------------------------
// For StringExtractor only
//------------------------------------------------------------------
std::string m_packet; // The string in which to extract data.
uint32_t m_index; // When extracting data from a packet, this index
// will march along as things get extracted. If set
// to UINT32_MAX the end of the packet data was
// reached when decoding information
uint32_t
GetNumHexASCIICharsAtFilePos (uint32_t max = UINT32_MAX) const;
};
#endif // utility_StringExtractor_h_
|
