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Fix segfault in xbus logging handler

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xbus logging handler assumed QMessageLogContext always had a valid file
pointer which is not necessarily the case. If the file pointer is 0x0
log a file name <unknown> instead.
This commit is contained in:
Roland Winklmeier
2015-03-07 18:32:42 +01:00
committed by Klaus Basan
parent ac760ce9b0
commit 8a0c88f71b
1 changed files with 10 additions and 5 deletions
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15
src/xbus/utils.h
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@@ -32,23 +32,28 @@ class QXPlaneMessageHandler
static void handler(QtMsgType type, const QMessageLogContext &context, const QString &msg)
{
QByteArray localMsg = msg.toLocal8Bit();
char *buffer = new char[64 + localMsg.size() + std::strlen(context.file)];
QByteArray file(context.file);
if (file.isEmpty()) file = "<unknown>";
int line = context.line;
char *buffer = new char[64 + localMsg.size() + file.size()];
switch (type) {
case QtDebugMsg:
std::sprintf(buffer, "%s:%u: Debug: %s\n", context.file, context.line, localMsg.constData());
std::sprintf(buffer, "%s:%u: Debug: %s\n", file.constData(), line, localMsg.constData());
XPLMDebugString(buffer);
break;
case QtWarningMsg:
std::sprintf(buffer, "%s:%u: Warning: %s\n", context.file, context.line, localMsg.constData());
std::sprintf(buffer, "%s:%u: Warning: %s\n", file.constData(), line, localMsg.constData());
XPLMDebugString(buffer);
break;
default:
case QtCriticalMsg:
std::sprintf(buffer, "%s:%u: Error: %s\n", context.file, context.line, localMsg.constData());
std::sprintf(buffer, "%s:%u: Error: %s\n", file.constData(), line, localMsg.constData());
XPLMDebugString(buffer);
break;
case QtFatalMsg:
std::sprintf(buffer, "%s:%u: Fatal: %s\n", context.file, context.line, localMsg.constData());
std::sprintf(buffer, "%s:%u: Fatal: %s\n", file.constData(), line, localMsg.constData());
XPLMDebugString(buffer);
std::abort();
}