blob: b1fb7ca6d074b5ea1d7f80960acbca63ce2625cb (
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
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
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
#include "lib/xdr16.h"
void XDRWriter::put(uint16_t number)
{
*buffer++ = ((number >> 8) & 0xffU);
*buffer++ = (number & 0xffU);
pos += 2;
}
void XDRWriter::put(int16_t number)
{
*buffer++ = ((number >> 8) & 0xffU);
*buffer++ = (number & 0xffU);
pos += 2;
}
void XDRWriter::put(uint32_t number)
{
*buffer++ = ((number >> 24) & 0xffU);
*buffer++ = ((number >> 16) & 0xffU);
*buffer++ = ((number >> 8) & 0xffU);
*buffer++ = (number & 0xffU);
pos += 4;
}
void XDRWriter::put(int32_t number)
{
*buffer++ = ((number >> 24) & 0xffU);
*buffer++ = ((number >> 16) & 0xffU);
*buffer++ = ((number >> 8) & 0xffU);
*buffer++ = (number & 0xffU);
pos += 4;
}
void XDRWriter::put(uint64_t number)
{
*buffer++ = ((number >> 56) & 0xffU);
*buffer++ = ((number >> 48) & 0xffU);
*buffer++ = ((number >> 40) & 0xffU);
*buffer++ = ((number >> 32) & 0xffU);
*buffer++ = ((number >> 24) & 0xffU);
*buffer++ = ((number >> 16) & 0xffU);
*buffer++ = ((number >> 8) & 0xffU);
*buffer++ = (number & 0xffU);
pos += 8;
}
void XDRWriter::put(int64_t number)
{
*buffer++ = ((number >> 56) & 0xffU);
*buffer++ = ((number >> 48) & 0xffU);
*buffer++ = ((number >> 40) & 0xffU);
*buffer++ = ((number >> 32) & 0xffU);
*buffer++ = ((number >> 24) & 0xffU);
*buffer++ = ((number >> 16) & 0xffU);
*buffer++ = ((number >> 8) & 0xffU);
*buffer++ = (number & 0xffU);
pos += 8;
}
void XDRWriter::put(float number)
{
union {
uint32_t i;
float f;
} v;
// Setting one member of a struct and then reading another is undefined
// behaviour, but works as intended in nearly any (embedded) compiler
v.f = number;
put(v.i);
}
void XDRWriter::put(double number)
{
union {
uint64_t i;
double d;
} v;
// Setting one member of a struct and then reading another is undefined
// behaviour, but works as intended in nearly any (embedded) compiler
v.d = number;
put(v.i);
}
void XDRWriter::put(char const *data)
{
if (!is_fixed_length)
{
put(next_array_len);
}
uint16_t i;
for (i = 0; i < next_array_len; i++)
{
*buffer++ = data[i];
}
while ((i++) % 2 != 0)
{
*buffer++ = 0;
}
pos += i - 1;
}
template <uint16_t TSize>
void XDRWriter::put(char const (&data)[TSize])
{
if (!is_fixed_length)
{
put(TSize);
}
uint16_t i;
for (i = 0; i < TSize; i++)
{
*buffer++ = data[i];
}
while ((i++) % 2 != 0)
{
*buffer++ = 0;
}
pos += i - 1;
}
uint16_t XDRReader::get_uint16()
{
uint16_t ret = (((uint16_t)data[pos] & 0xffU) << 8) | ((uint16_t)data[pos + 1] & 0xffU);
pos += 2;
return ret;
}
int16_t XDRReader::get_int16()
{
int16_t ret = (((int16_t)data[pos] & 0xff) << 8) | ((int16_t)data[pos + 1] & 0xff);
pos += 2;
return ret;
}
uint32_t XDRReader::get_uint32()
{
uint32_t ret = (((uint32_t)data[pos] & 0xffU) << 24) | (((uint32_t)data[pos + 1] & 0xffU) << 16) | (((uint32_t)data[pos + 2] & 0xffU) << 8) | ((uint32_t)data[pos + 3] & 0xffU);
pos += 4;
return ret;
}
int32_t XDRReader::get_int32()
{
int32_t ret = (((int32_t)data[pos] & 0xff) << 24) | (((int32_t)data[pos + 1] & 0xff) << 16) | (((int32_t)data[pos + 2] & 0xff) << 8) | ((int32_t)data[pos + 3] & 0xff);
pos += 4;
return ret;
}
uint64_t XDRReader::get_uint64()
{
uint64_t ret = (((uint64_t)data[pos] & 0xffU) << 56) | (((uint64_t)data[pos + 1] & 0xffU) << 48) | (((uint64_t)data[pos + 2] & 0xffU) << 40) | (((uint64_t)data[pos + 3] & 0xffU) << 32) | (((uint64_t)data[pos + 4] & 0xffU) << 24) | (((uint64_t)data[pos + 5] & 0xffU) << 16) | (((uint64_t)data[pos + 6] & 0xffU) << 8) | ((uint64_t)data[pos + 7] & 0xffU);
return ret;
}
int64_t XDRReader::get_int64()
{
int64_t ret = (((int64_t)data[pos] & 0xff) << 56) | (((int64_t)data[pos + 1] & 0xff) << 48) | (((int64_t)data[pos + 2] & 0xff) << 40) | (((int64_t)data[pos + 3] & 0xff) << 32) | (((int64_t)data[pos + 4] & 0xff) << 24) | (((int64_t)data[pos + 5] & 0xff) << 16) | (((int64_t)data[pos + 6] & 0xff) << 8) | ((int64_t)data[pos + 7] & 0xff);
return ret;
}
float XDRReader::get_float()
{
union {
uint32_t i;
float f;
} v;
// Setting one member of a struct and then reading another is undefined
// behaviour, but works as intended in nearly any (embedded) compiler
v.i = get_uint32();
return v.f;
}
double XDRReader::get_double()
{
union {
uint64_t i;
double d;
} v;
// Setting one member of a struct and then reading another is undefined
// behaviour, but works as intended in nearly any (embedded) compiler
v.i = get_uint64();
return v.d;
}
uint32_t XDRReader::get_opaque_length()
{
return get_uint16();
}
char *XDRReader::get_opaque(uint32_t length)
{
char *ret = data + pos;
pos += length;
if (length % 2)
{
pos += 2 - (length % 2);
}
return ret;
}
void XDRReader::get_string(char *target)
{
uint16_t length = get_opaque_length();
uint16_t i;
for (i = 0; i < length; i++)
{
target[i] = data[pos + i];
}
target[i] = 0;
pos += length;
if (length % 2)
{
pos += 2 - (length % 2);
}
}
|
