[vlc-devel] [PATCH] contrib: fix eof not detected when looking for an ID size

[Steve Lhomme]

do use the data in memory that wasn't actually read
---
 contrib/src/ebml/eof.patch | 15 +++++++++++++++
 contrib/src/ebml/rules.mak |  1 +
 2 files changed, 16 insertions(+)
 create mode 100644 contrib/src/ebml/eof.patch

diff --git a/contrib/src/ebml/eof.patch b/contrib/src/ebml/eof.patch
new file mode 100644
index 0000000..72026b0
--- /dev/null
+++ b/contrib/src/ebml/eof.patch
@@ -0,0 +1,15 @@
+--- libebml/src/EbmlElement.cpp 2015-08-21 12:58:03.738589700 +0200
++++ libebml/src/EbmlElement.cpp.eof     2015-08-21 12:55:18.972736500 +0200
+@@ -417,7 +417,10 @@
+         bFound = false;
+         break;
+       }
+-      ReadSize += DataStream.read(&PossibleIdNSize[SizeIdx++], 1);
++      if( DataStream.read( &PossibleIdNSize[SizeIdx++], 1 ) == 0 ) {
++          return NULL; // no more data ?
++      }
++      ReadSize++;
+       PossibleSizeLength++;
+     }
+
+
diff --git a/contrib/src/ebml/rules.mak b/contrib/src/ebml/rules.mak
index f8ff559..8b4a914 100644
--- a/contrib/src/ebml/rules.mak
+++ b/contrib/src/ebml/rules.mak
@@ -11,6 +11,7 @@ $(TARBALLS)/libebml-$(EBML_VERSION).tar.bz2:
 
 libebml: libebml-$(EBML_VERSION).tar.bz2 .sum-ebml
 	$(UNPACK)
+	$(APPLY) $(SRC)/ebml/eof.patch
 ifdef HAVE_WINRT
 	$(APPLY) $(SRC)/ebml/winstore.patch
 endif
-- 
2.5.0