[woff2] Return if single stream operation fails.

* src/sfnt/sfwoff2.c (get_x_mins): Do it.

* src/sfnt/woff2tags.c: Remove unused include.

ChangeLog

@@ -1,3 +1,11 @@
+2020-04-04  Nikhil Ramakrishnan  <ramakrishnan.nikhil@gmail.com>
+
+	[woff2] Return if single stream operation fails.
+
+	* src/sfnt/sfwoff2.c (get_x_mins): Do it.
+
+	* src/sfnt/woff2tags.c: Remove unused include.
+
 2020-03-22  Nikhil Ramakrishnan  <ramakrishnan.nikhil@gmail.com>
 
 	[docs] Fix building docs if `srcdir' != `builddir'.

src/sfnt/sfwoff2.c

@@ -1288,7 +1288,7 @@
     }
 
     /* Read `numGlyphs' field from `maxp' table. */
-    if ( FT_STREAM_SEEK( maxp_table->src_offset ) && FT_STREAM_SKIP( 8 ) )
+    if ( FT_STREAM_SEEK( maxp_table->src_offset ) || FT_STREAM_SKIP( 8 ) )
       return error;
 
     if ( FT_READ_USHORT( num_glyphs ) )
@@ -1297,7 +1297,7 @@
     info->num_glyphs = num_glyphs;
 
     /* Read `indexToLocFormat' field from `head' table. */
-    if ( FT_STREAM_SEEK( head_table->src_offset ) &&
+    if ( FT_STREAM_SEEK( head_table->src_offset ) ||
          FT_STREAM_SKIP( 50 )                     )
       return error;
 
@@ -1335,7 +1335,7 @@
 
       glyf_offset += info->glyf_table->src_offset;
 
-      if ( FT_STREAM_SEEK( glyf_offset ) && FT_STREAM_SKIP( 2 ) )
+      if ( FT_STREAM_SEEK( glyf_offset ) || FT_STREAM_SKIP( 2 ) )
         return error;
 
       if ( FT_READ_USHORT( info->x_mins[i] ) )

src/sfnt/woff2tags.c

@@ -17,7 +17,6 @@
 
 
 #include <ft2build.h>
-#include "sfwoff.h"
 #include FT_TRUETYPE_TAGS_H