1 files changed, 36 insertions, 28 deletions

diff --git a/lzip_index.h b/lzip_index.h
index a4fbd56..3fb4f35 100644
--- a/lzip_index.h
+++ b/lzip_index.h
@@ -20,72 +20,80 @@
 #endif
 
 
-struct Block
+typedef struct Block
   {
   long long pos, size;		/* pos >= 0, size >= 0, pos + size <= INT64_MAX */
-  };
+  } Block;
 
-static inline void init_block( struct Block * const b,
+static inline void init_block( Block * const b,
                                const long long p, const long long s )
   { b->pos = p; b->size = s; }
 
-static inline long long block_end( const struct Block b )
-  { return b.pos + b.size; }
+static inline long long block_end( const Block b ) { return b.pos + b.size; }
 
 
-struct Member
+typedef struct Member
   {
-  struct Block dblock, mblock;		/* data block, member block */
+  Block dblock, mblock;		/* data block, member block */
   unsigned dictionary_size;
-  };
+  } Member;
 
-static inline void init_member( struct Member * const m,
-                                const long long dpos, const long long dsize,
-                                const long long mpos, const long long msize,
-                                const unsigned dict_size )
-  { init_block( &m->dblock, dpos, dsize ); init_block( &m->mblock, mpos, msize );
-    m->dictionary_size = dict_size; }
+static inline void init_member( Member * const m, const long long dpos,
+                              const long long dsize, const long long mpos,
+                              const long long msize, const unsigned dict_size )
+  { init_block( &m->dblock, dpos, dsize );
+    init_block( &m->mblock, mpos, msize ); m->dictionary_size = dict_size; }
 
-struct Lzip_index
+typedef struct Lzip_index
   {
-  struct Member * member_vector;
+  Member * member_vector;
   char * error;
   long long insize;
   long members;
   int error_size;
   int retval;
   unsigned dictionary_size;	/* largest dictionary size in the file */
-  };
+  } Lzip_index;
 
-bool Li_init( struct Lzip_index * const li, const int infd,
-              const struct Cl_options * const cl_opts );
+bool Li_init( Lzip_index * const li, const int infd,
+              const Cl_options * const cl_opts );
 
-void Li_free( struct Lzip_index * const li );
+void Li_free( Lzip_index * const li );
 
-static inline long long Li_udata_size( const struct Lzip_index * const li )
+/* multimember file with empty member(s) */
+static inline bool Li_multi_empty( Lzip_index * const li )
+  {
+  long i;
+  if( li->members > 1 )
+    for( i = 0; i < li->members; ++i )
+      if( li->member_vector[i].dblock.size == 0 ) return true;
+   return false;
+  }
+
+static inline long long Li_udata_size( const Lzip_index * const li )
   {
   if( li->members <= 0 ) return 0;
   return block_end( li->member_vector[li->members-1].dblock );
   }
 
-static inline long long Li_cdata_size( const struct Lzip_index * const li )
+static inline long long Li_cdata_size( const Lzip_index * const li )
   {
   if( li->members <= 0 ) return 0;
   return block_end( li->member_vector[li->members-1].mblock );
   }
 
   /* total size including trailing data (if any) */
-static inline long long Li_file_size( const struct Lzip_index * const li )
+static inline long long Li_file_size( const Lzip_index * const li )
   { if( li->insize >= 0 ) return li->insize; else return 0; }
 
-static inline const struct Block * Li_dblock( const struct Lzip_index * const li,
-                                              const long i )
+static inline const Block * Li_dblock( const Lzip_index * const li,
+                                       const long i )
   { return &li->member_vector[i].dblock; }
 
-static inline const struct Block * Li_mblock( const struct Lzip_index * const li,
-                                              const long i )
+static inline const Block * Li_mblock( const Lzip_index * const li,
+                                       const long i )
   { return &li->member_vector[i].mblock; }
 
-static inline unsigned Li_dictionary_size( const struct Lzip_index * const li,
+static inline unsigned Li_dictionary_size( const Lzip_index * const li,
                                            const long i )
   { return li->member_vector[i].dictionary_size; }