Avoid overflow error on short filenames

CMB-S4 · Oct 18, 2024 · 5d0157f · 5d0157f
1 parent afb36ce
commit 5d0157f
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/core/src/dataio.cxx b/core/src/dataio.cxx
@@ -23,9 +23,9 @@ int
 g3_istream_from_path(g3_istream &stream, const std::string &path, float timeout)
 {
 	stream.reset();
-	if (!path.compare(path.size() - 3, 3, ".gz"))
+	if (path.size() > 3 && !path.compare(path.size() - 3, 3, ".gz"))
 		stream.push(boost::iostreams::gzip_decompressor());
-	if (!path.compare(path.size() - 4, 4, ".bz2")) {
+	if (path.size() > 4 && !path.compare(path.size() - 4, 4, ".bz2")) {
 #ifdef BZIP2_FOUND
 		stream.push(boost::iostreams::bzip2_decompressor());
 #else