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-rw-r--r--contrib/libdvdread/A01-bogus-udf-filename.patch37
1 files changed, 37 insertions, 0 deletions
diff --git a/contrib/libdvdread/A01-bogus-udf-filename.patch b/contrib/libdvdread/A01-bogus-udf-filename.patch
new file mode 100644
index 000000000..d9a3b2103
--- /dev/null
+++ b/contrib/libdvdread/A01-bogus-udf-filename.patch
@@ -0,0 +1,37 @@
+Index: dvd_udf.c
+===================================================================
+--- libdvdread/src/dvd_udf.c (revision 1233)
++++ libdvdread/src/dvd_udf.c (working copy)
+@@ -329,16 +329,17 @@
+ static int Unicodedecode( uint8_t *data, int len, char *target )
+ {
+ int p = 1, i = 0;
++ int err = 0;
+
+ if( ( data[ 0 ] == 8 ) || ( data[ 0 ] == 16 ) ) do {
+- if( data[ 0 ] == 16 ) p++; /* Ignore MSB of unicode16 */
++ if( data[ 0 ] == 16 ) err |= data[p++]; /* character cannot be converted to 8bit, return error */
+ if( p < len ) {
+ target[ i++ ] = data[ p++ ];
+ }
+ } while( p < len );
+
+ target[ i ] = '\0';
+- return 0;
++ return !err;
+ }
+
+ static int UDFDescriptor( uint8_t *data, uint16_t *TagID )
+@@ -490,8 +491,9 @@
+ L_FI = GETN1(19);
+ UDFLongAD(&data[20], FileICB);
+ L_IU = GETN2(36);
+- if (L_FI) Unicodedecode(&data[38 + L_IU], L_FI, FileName);
+- else FileName[0] = '\0';
++ if (L_FI) {
++ if (!Unicodedecode(&data[38 + L_IU], L_FI, FileName)) FileName[0] = 0;
++ } else FileName[0] = '\0';
+ return 4 * ((38 + L_FI + L_IU + 3) / 4);
+ }
+
+