Validate the file reader in DoOpenResourceFile.

ZDoom · Oct 10, 2024 · 5782206 · 5782206
1 parent e6fa87c
commit 5782206
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/source/common/filesystem/source/resourcefile.cpp b/source/common/filesystem/source/resourcefile.cpp
@@ -162,6 +162,7 @@ static int nulPrintf(FSMessageLevel msg, const char* fmt, ...)
 
 FResourceFile *FResourceFile::DoOpenResourceFile(const char *filename, FileReader &file, bool containeronly, LumpFilterInfo* filter, FileSystemMessageFunc Printf, StringPool* sp)
 {
+	if (!file.isOpen()) return nullptr;
 	if (Printf == nullptr) Printf = nulPrintf;
 	for(auto func : funcs)
 	{