Merging upstream version 1.0~rc3.

Signed-off-by: Daniel Baumann <mail@daniel-baumann.ch>

1 files changed, 19 insertions, 16 deletions

diff --git a/pdlzip.h b/pdlzip.h
index 604f508..5af155b 100644
--- a/pdlzip.h
+++ b/pdlzip.h
@@ -39,7 +39,7 @@ static inline void CRC32_init()
     {
     unsigned int c = n;
     for( int k = 0; k < 8; ++k )
-      { if( c & 1 ) c = 0xEDB88320 ^ ( c >> 1 ); else c >>= 1; }
+      { if( c & 1 ) c = 0xEDB88320U ^ ( c >> 1 ); else c >>= 1; }
     crc32[n] = c;
     }
   }
@@ -57,6 +57,7 @@ static inline void CRC32_update_buf( uint32_t * crc, const uint8_t * const buffe
 typedef uint8_t File_header[6];		// 0-3 magic bytes
 					//   4 version
 					//   5 coded_dict_size;
+enum { Fh_size = 6 };
 
 static inline void Fh_set_magic( File_header header )
   {
@@ -87,23 +88,23 @@ static inline int Fh_real_bits( const int value )
 
 static inline int Fh_get_dictionary_size( const File_header header )
   {
-  int size = ( 1 << ( header[5] & 0x1F ) );
-  if( size > min_dictionary_size && size <= max_dictionary_size )
-    size -= ( size / 16 ) * ( ( header[5] >> 5 ) & 0x07 );
-  return size;
+  int sz = ( 1 << ( header[5] & 0x1F ) );
+  if( sz > min_dictionary_size && sz <= max_dictionary_size )
+    sz -= ( sz / 16 ) * ( ( header[5] >> 5 ) & 0x07 );
+  return sz;
   }
 
-static inline bool Fh_set_dictionary_size( File_header header, const int size )
+static inline bool Fh_set_dictionary_size( File_header header, const int sz )
   {
-  if( size >= min_dictionary_size && size <= max_dictionary_size )
+  if( sz >= min_dictionary_size && sz <= max_dictionary_size )
     {
-    header[5] = Fh_real_bits( size - 1 );
-    if( size > min_dictionary_size )
+    header[5] = Fh_real_bits( sz - 1 );
+    if( sz > min_dictionary_size )
       {
       const int base_size = 1 << header[5];
       const int wedge = base_size / 16;
       for( int i = 7; i >= 1; --i )
-        if( base_size - ( i * wedge ) >= size )
+        if( base_size - ( i * wedge ) >= sz )
           { header[5] |= ( i << 5 ); break; }
       }
     return true;
@@ -117,8 +118,10 @@ typedef uint8_t File_trailer[20];
 			//  4-11 size of the uncompressed data
 			// 12-19 member size including header and trailer
 
-static inline int Ft_size( const int version )
-  { return sizeof (File_trailer) - ( ( version >= 1 ) ? 0 : 8 ); }
+enum { Ft_size = 20 };
+
+static inline int Ft_versioned_size( const int version )
+  { return ( ( version >= 1 ) ? 20 : 12 ); }
 
 static inline uint32_t Ft_get_data_crc( const File_trailer trailer )
   {
@@ -137,9 +140,9 @@ static inline long long Ft_get_data_size( const File_trailer trailer )
   return tmp;
   }
 
-static inline void Ft_set_data_size( File_trailer trailer, long long size )
+static inline void Ft_set_data_size( File_trailer trailer, long long sz )
   {
-  for( int i = 4; i <= 11; ++i ) { trailer[i] = (uint8_t)size; size >>= 8; }
+  for( int i = 4; i <= 11; ++i ) { trailer[i] = (uint8_t)sz; sz >>= 8; }
   }
 
 static inline long long Ft_get_member_size( const File_trailer trailer )
@@ -149,9 +152,9 @@ static inline long long Ft_get_member_size( const File_trailer trailer )
   return tmp;
   }
 
-static inline void Ft_set_member_size( File_trailer trailer, long long size )
+static inline void Ft_set_member_size( File_trailer trailer, long long sz )
   {
-  for( int i = 12; i <= 19; ++i ) { trailer[i] = (uint8_t)size; size >>= 8; }
+  for( int i = 12; i <= 19; ++i ) { trailer[i] = (uint8_t)sz; sz >>= 8; }
   }