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Fix several undefined behavior issues identified by @nrathaus.

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Fixes #147.
This commit is contained in:
Michael Hansen 2018-01-28 14:33:26 -08:00
commit bf60a5831b
12 changed files with 152 additions and 55 deletions
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6
pyc_string.cpp
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@ -2,6 +2,7 @@
#include "pyc_module.h"
#include "data.h"
#include <cstring>
#include <limits>
static void ascii_to_utf8(char** data)
{
@ -64,6 +65,9 @@ void PycString::load(PycData* stream, PycModule* mod)
else
m_length = stream->get32();
if (m_length < 0 || (m_length > std::numeric_limits<int>::max() - 1))
throw std::bad_alloc();
if (m_length) {
m_value = new char[m_length+1];
stream->getBuffer(m_length, m_value);
@ -95,6 +99,8 @@ bool PycString::isEqual(const char* str) const
{
if (m_value == str)
return true;
if (!m_value)
return false;
return (strcmp(m_value, str) == 0);
}