re PR libgcj/14856 (Update bundled zlib)

	PR libgcj/14856:
	* Imported zlib 1.2.1; merged local changes.

From-SVN: r88898

2 files changed, 28 insertions, 42 deletions

diff --git a/zlib/contrib/iostream/zfstream.cpp b/zlib/contrib/iostream/zfstream.cpp
index a690bbe..d0cd85f 100644
--- a/zlib/contrib/iostream/zfstream.cpp
+++ b/zlib/contrib/iostream/zfstream.cpp
@@ -1,5 +1,4 @@
 
-#include <memory.h>
 #include "zfstream.h"
 
 gzfilebuf::gzfilebuf() :
@@ -17,15 +16,13 @@ gzfilebuf::~gzfilebuf() {
 }
 
 gzfilebuf *gzfilebuf::open( const char *name,
-			    int io_mode ) {
+                            int io_mode ) {
 
   if ( is_open() )
     return NULL;
 
   char char_mode[10];
-  char *p;
-  memset(char_mode,'\0',10);
-  p = char_mode;
+  char *p = char_mode;
 
   if ( io_mode & ios::in ) {
     mode = ios::in;
@@ -48,6 +45,9 @@ gzfilebuf *gzfilebuf::open( const char *name,
     *p++ = '9';
   }
 
+  // Put the end-of-string indicator
+  *p = '\0';
+
   if ( (file = gzopen(name, char_mode)) == NULL )
     return NULL;
 
@@ -58,15 +58,13 @@ gzfilebuf *gzfilebuf::open( const char *name,
 }
 
 gzfilebuf *gzfilebuf::attach( int file_descriptor,
-			      int io_mode ) {
+                              int io_mode ) {
 
   if ( is_open() )
     return NULL;
 
   char char_mode[10];
-  char *p;
-  memset(char_mode,'\0',10);
-  p = char_mode;
+  char *p = char_mode;
 
   if ( io_mode & ios::in ) {
     mode = ios::in;
@@ -89,6 +87,9 @@ gzfilebuf *gzfilebuf::attach( int file_descriptor,
     *p++ = '9';
   }
 
+  // Put the end-of-string indicator
+  *p = '\0';
+
   if ( (file = gzdopen(file_descriptor, char_mode)) == NULL )
     return NULL;
 
@@ -112,13 +113,13 @@ gzfilebuf *gzfilebuf::close() {
 
 }
 
-int gzfilebuf::setcompressionlevel( short comp_level ) {
+int gzfilebuf::setcompressionlevel( int comp_level ) {
 
   return gzsetparams(file, comp_level, -2);
 
 }
 
-int gzfilebuf::setcompressionstrategy( short comp_strategy ) {
+int gzfilebuf::setcompressionstrategy( int comp_strategy ) {
 
   return gzsetparams(file, -2, comp_strategy);
 
@@ -151,7 +152,7 @@ int gzfilebuf::underflow() {
 
     if ( out_waiting() ) {
       if ( flushbuf() == EOF )
-	return EOF;
+        return EOF;
     }
 
   }
@@ -180,11 +181,11 @@ int gzfilebuf::overflow( int c ) {
     setg(0,0,0);
   } else {
     if (in_avail()) {
-	return EOF;
+        return EOF;
     }
     if (out_waiting()) {
       if (flushbuf() == EOF)
-	return EOF;
+        return EOF;
     }
   }
 
@@ -282,12 +283,11 @@ void gzfilestream_common::close() {
 
 }
 
-gzfilebuf *gzfilestream_common::rdbuf() {
-
+gzfilebuf *gzfilestream_common::rdbuf()
+{
   return &buffer;
-
 }
-     
+
 gzifstream::gzifstream() :
   ios( gzfilestream_common::rdbuf() )
 {
diff --git a/zlib/contrib/iostream/zfstream.h b/zlib/contrib/iostream/zfstream.h
index c87fa08..ed79098 100644
--- a/zlib/contrib/iostream/zfstream.h
+++ b/zlib/contrib/iostream/zfstream.h
@@ -1,6 +1,6 @@
 
-#ifndef _zfstream_h
-#define _zfstream_h
+#ifndef zfstream_h
+#define zfstream_h
 
 #include <fstream.h>
 #include "zlib.h"
@@ -16,8 +16,8 @@ public:
   gzfilebuf *attach( int file_descriptor, int io_mode );
   gzfilebuf *close();
 
-  int setcompressionlevel( short comp_level );
-  int setcompressionstrategy( short comp_strategy );
+  int setcompressionlevel( int comp_level );
+  int setcompressionstrategy( int comp_strategy );
 
   inline int is_open() const { return (file !=NULL); }
 
@@ -98,18 +98,19 @@ private:
   T val;
 };
 
-template<class T> gzofstream &operator<<(gzofstream &s,
-					 const gzomanip<T> &m) {
+template<class T> gzofstream &operator<<(gzofstream &s, const gzomanip<T> &m)
+{
   return (*m.func)(s, m.val);
-  
 }
 
-inline gzofstream &setcompressionlevel( gzofstream &s, int l ) {
+inline gzofstream &setcompressionlevel( gzofstream &s, int l )
+{
   (s.rdbuf())->setcompressionlevel(l);
   return s;
 }
 
-inline gzofstream &setcompressionstrategy( gzofstream &s, int l ) {
+inline gzofstream &setcompressionstrategy( gzofstream &s, int l )
+{
   (s.rdbuf())->setcompressionstrategy(l);
   return s;
 }
@@ -125,18 +126,3 @@ inline gzomanip<int> setcompressionstrategy(int l)
 }
 
 #endif
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