1 files changed, 30 insertions, 9 deletions

diff --git a/src/file.cpp b/src/file.cpp
index a0c3fd8..0566ee8 100644
--- a/src/file.cpp
+++ b/src/file.cpp
@@ -12,6 +12,7 @@
 #include <fcntl.h>
 #include <unistd.h>
 #include <stdlib.h> // for mkstemp
+#include <time.h>
 
 #include "bu/config.h"
 
@@ -189,21 +190,41 @@ void Bu::File::setBlocking( bool bBlocking )
 
 Bu::File Bu::File::tempFile( Bu::FString &sName )
 {
-#ifndef WIN32
-        int afh_d = mkstemp( sName.getStr() );
+        uint32_t iX;
+        iX = time( NULL ) + getpid();
+        int iXes;
+        for( iXes = sName.getSize()-1; iXes >= 0; iXes-- )
+        {
+                if( sName[iXes] != 'X' )
+                        break;
+        }
+        iXes++;
+        if( iXes == sName.getSize() )
+                throw Bu::ExceptionBase("Invalid temporary filename template.");
+        for( int iter = 0; iter < 100; iter++ )
+        {
+                for( int j = iXes; j < sName.getSize(); j++ )
+                {
+                        iX = (1103515245 * iX + 12345);
+                        sName[j] = ('A'+(iX%26)) | ((iX&0x1000)?(0x20):(0));
+                }
 
-        return Bu::File( afh_d );
-#else
-        return Bu::File( sName, Bu::File::Write|Bu::File::Create );
-#endif
+                try
+                {
+                        return Bu::File( sName, Bu::File::Read|Bu::File::Write
+                                        |Bu::File::Create|Bu::File::Exclusive );
+                } catch(...) { }
+        }
+        throw Bu::FileException("Failed to create unique temporary file after 100"
+                        " iterations.");
 }
 
 void Bu::File::setSize( long iSize )
 {
-#ifndef WIN32
-        ftruncate( fd, iSize );
+#ifdef WIN32
+        chsize( fd, iSize );
 #else
-#warning Bu::File::setSize not implemented on this platform
+        ftruncate( fd, iSize );
 #endif
 }