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Block reserved device names on windows (#733)

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Michael Flaherty 2017-12-03 03:38:56 -08:00 committed by Asher Baker
parent a5583882f4
commit 830c3f36d3
1 changed files with 50 additions and 0 deletions
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50
core/HalfLife2.cpp
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@ -1182,8 +1182,58 @@ SMFindMapResult CHalfLife2::FindMap(char *pMapName, size_t nMapNameMax)
return this->FindMap(pMapName, pMapName, nMapNameMax);
}
#ifdef PLATFORM_WINDOWS
bool CheckReservedFilename(const char *in, const char *reservedName)
{
size_t nameLen = strlen(reservedName);
for (size_t i = 0; i < nameLen; ++i)
{
if (reservedName[i] != tolower(in[i]))
{
return false;
}
}
if (in[nameLen] == '\0' || in[nameLen] == '.')
{
return true;
}
return false;
}
bool IsWindowsReservedDeviceName(const char *pMapname)
{
static const char * const reservedDeviceNames[] = {
"con", "prn", "aux", "clock$", "nul", "com1",
"com2", "com3", "com4", "com5", "com6", "com7",
"com8", "com9", "lpt1", "lpt2", "lpt3", "lpt4",
"lpt5", "lpt6", "lpt7", "lpt8", "lpt9"
};
size_t reservedCount = sizeof(reservedDeviceNames) / sizeof(reservedDeviceNames[0]);
for (int i = 0; i < reservedCount; ++i)
{
if (CheckReservedFilename(pMapname, reservedDeviceNames[i]))
{
return true;
}
}
return false;
}
#endif
SMFindMapResult CHalfLife2::FindMap(const char *pMapName, char *pFoundMap, size_t nMapNameMax)
{
/* We need to ensure user input does not contain reserved device names on windows */
#ifdef PLATFORM_WINDOWS
if (IsWindowsReservedDeviceName(pMapName))
{
return SMFindMapResult::NotFound;
}
#endif
ke::SafeStrcpy(pFoundMap, nMapNameMax, pMapName);
#if SOURCE_ENGINE >= SE_LEFT4DEAD