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made maxPos a constant and corrected max pos check

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john30
2014-11-20 21:09:54 +01:00
parent b806210cfa
commit 7a2344d9db
1 changed files with 11 additions and 6 deletions
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src/lib/ebus/data.cpp
+11 -6
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@@ -98,6 +98,7 @@ static const char* dayNames[] = {"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"
#define FIELD_SEPARATOR ';'
#define VALUE_SEPARATOR ','
#define NULL_VALUE "-"
#define MAX_POS 16
result_t DataField::create(std::vector<std::string>::iterator& it,
const std::vector<std::string>::iterator end,
@@ -112,7 +113,7 @@ result_t DataField::create(std::vector<std::string>::iterator& it,
std::string unit, comment;
PartType partType;
unsigned int divisor = 0;
unsigned char offset, length, maxPos = 16, offsetCnt = 0;
unsigned char offset, length, offsetCnt = 0;
const bool isTemplate = dstAddress == SYN;
std::string token;
if (it == end)
@@ -175,7 +176,7 @@ result_t DataField::create(std::vector<std::string>::iterator& it,
break;
}
if (pos > maxPos) {
if (pos > MAX_POS) {
result = RESULT_ERR_INVALID_ARG; // invalid pos definition
break;
}
@@ -269,6 +270,10 @@ result_t DataField::create(std::vector<std::string>::iterator& it,
break;
offset = fields.back()->getNextOffset();
}
if (offset > MAX_POS) {
result = RESULT_ERR_INVALID_ARG; // invalid pos definition
break;
}
if (found == true || result != RESULT_OK)
break;
}
@@ -290,6 +295,10 @@ result_t DataField::create(std::vector<std::string>::iterator& it,
useLength = numBytes;
else if (useLength != numBytes)
continue; // check for another one with same name but different length
if (offset + useLength > MAX_POS) {
result = RESULT_ERR_INVALID_ARG; // invalid pos definition
break;
}
switch (dataType.type)
{
@@ -360,7 +369,6 @@ unsigned char SingleDataField::getNextOffset()
result_t SingleDataField::read(SymbolString& masterData, SymbolString& slaveData,
std::ostringstream& output, bool verbose, char separator)
{
unsigned char maxPos = 16;
SymbolString& input = m_partType == pt_masterData ? masterData : slaveData;
unsigned char baseOffset;
switch (m_partType)
@@ -375,9 +383,6 @@ result_t SingleDataField::read(SymbolString& masterData, SymbolString& slaveData
return RESULT_ERR_INVALID_ARG; // invalid part type
}
if (m_offset + m_length > maxPos) {
return RESULT_ERR_INVALID_ARG; // invalid pos definition
}
if (verbose)
output << m_name << "=";