commit e48ca8d4d71ab0521b90062f2386782d26bde5d0
author Erik de Castro Lopo <erikd@mega-nerd.com> Tue Sep 01 00:46:32 2015 +1000
committer Erik de Castro Lopo <erikd@mega-nerd.com> Tue Sep 01 00:46:42 2015 +1000
tree 251c0207a4f9dcf4b2d61179beaafd3ce1a484aa
parent e5ef5344976419b5a13cf6625459b0e9d5ec8496

libFLAC++/metadata.cpp: Fix undefined behaviour

src/libFLAC++/metadata.cpp

diff --git a/src/libFLAC++/metadata.cpp b/src/libFLAC++/metadata.cpp
index 49dd35a..2293082 100644
--- a/src/libFLAC++/metadata.cpp
+++ b/src/libFLAC++/metadata.cpp
@@ -812,7 +812,8 @@
 				entry_.length += field_name_length_;
 				memcpy(entry_.entry + entry_.length, "=", 1);
 				entry_.length += 1;
-				memcpy(entry_.entry + entry_.length, field_value_, field_value_length_);
+				if (field_value_length_ > 0)
+					memcpy(entry_.entry + entry_.length, field_value_, field_value_length_);
 				entry_.length += field_value_length_;
 				entry_.entry[entry_.length] = '\0';
 				is_valid_ = true;