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
|
#include "ProxyReadBuffer.H"
int
ProxyReadBuffer::locateMessage(const unsigned char *start,
const unsigned char *end,
unsigned int &headerLength,
unsigned int &dataLength,
unsigned int &trailerLength)
{
unsigned int lengthLength = 0;
dataLength = 0;
const unsigned char *nextSrc = start;
unsigned char next;
do
{
if (nextSrc >= end)
return 0;
next = *nextSrc++;
dataLength <<= 7;
dataLength |= (unsigned int) (next & 0x7f);
lengthLength++;
}
while (next & 0x80);
trailerLength = 0;
headerLength = (dataLength == 0) ? 3 : lengthLength;
unsigned int totalLength = headerLength + dataLength + trailerLength;
if (start + totalLength > end)
return 0;
else
return 1;
}
|
