3 files changed, 58 insertions, 33 deletions

diff --git a/src/hashfunctionstring.cpp b/src/hashfunctionstring.cpp
index 6ce7bb3..bd14643 100644
--- a/src/hashfunctionstring.cpp
+++ b/src/hashfunctionstring.cpp
@@ -1,4 +1,7 @@
 #include "hashfunctionstring.h"
+#ifndef NULL
+#define NULL ((void *) 0)
+#endif
 
 HashFunctionString::HashFunctionString()
 {
@@ -10,6 +13,11 @@ HashFunctionString::~HashFunctionString()
 
 unsigned long int HashFunctionString::hash( const void *id )
 {
+        if (id == NULL)
+        {
+                return 0;
+        }
+        
         unsigned long int nPos = 0;
         for( const char *s = (const char *)id; *s; s++ )
         {
@@ -20,6 +28,15 @@ unsigned long int HashFunctionString::hash( const void *id )
 
 bool HashFunctionString::cmpIDs( const void *id1, const void *id2 )
 {
+        if (id1 == NULL || id2 == NULL)
+        {
+                return false;
+        }
+        if (id1 == id2)
+        {
+                return true;
+        }
+        
         const char *str1 = (const char *)id1;
         const char *str2 = (const char *)id2;
 
diff --git a/src/hashtable.cpp b/src/hashtable.cpp
index ea13236..37c3149 100644
--- a/src/hashtable.cpp
+++ b/src/hashtable.cpp
@@ -203,16 +203,18 @@ const void *HashTable::get( const void *id, unsigned long int nSkip )
         for( unsigned long int j=0; j < 32; nPos = (nPos+(1<<j))%nTableSize, j++ )
         {
                 if( !isFilled( nPos ) ) return NULL;
-                if( hFunc->cmpIDs( id, aTable[nPos].id ) &&
-                        aTable[nPos].bDeleted == false )
+                if( aTable[nPos].bDeleted == false )
                 {
-                        if( nSkip == 0 )
-                        {
-                                return aTable[nPos].data;
-                        }
-                        else
+                        if( hFunc->cmpIDs( id, aTable[nPos].id ) )
                         {
-                                nSkip--;
+                                if( nSkip == 0 )
+                                {
+                                        return aTable[nPos].data;
+                                }
+                                else
+                                {
+                                        nSkip--;
+                                }
                         }
                 }
         }
@@ -223,16 +225,18 @@ const void *HashTable::get( const void *id, unsigned long int nSkip )
                 for( nPos++; nPos != nOldPos; nPos=(nPos+1)%nTableSize )
                 {
                         if( !isFilled( nPos ) ) return NULL;
-                        if( hFunc->cmpIDs( id, aTable[nPos].id ) &&
-                                aTable[nPos].bDeleted == false )
+                        if( aTable[nPos].bDeleted == false )
                         {
-                                if( nSkip == 0 )
+                                if( hFunc->cmpIDs( id, aTable[nPos].id ) )
                                 {
-                                        return aTable[nPos].data;
-                                }
-                                else
-                                {
-                                        nSkip--;
+                                        if( nSkip == 0 )
+                                        {
+                                                return aTable[nPos].data;
+                                        }
+                                        else
+                                        {
+                                                nSkip--;
+                                        }
                                 }
                         }
                 }
@@ -248,16 +252,18 @@ const void *HashTable::getKey( const void *id, unsigned long int nSkip )
         for( unsigned long int j=0; j < 32; nPos = (nPos+(1<<j))%nTableSize, j++ )
         {
                 if( !isFilled( nPos ) ) return NULL;
-                if( hFunc->cmpIDs( id, aTable[nPos].id ) &&
-                        aTable[nPos].bDeleted == false )
+                if( aTable[nPos].bDeleted == false )
                 {
-                        if( nSkip == 0 )
-                        {
-                                return aTable[nPos].id;
-                        }
-                        else
+                        if( hFunc->cmpIDs( id, aTable[nPos].id ) )
                         {
-                                nSkip--;
+                                if( nSkip == 0 )
+                                {
+                                        return aTable[nPos].id;
+                                }
+                                else
+                                {
+                                        nSkip--;
+                                }
                         }
                 }
         }
@@ -268,16 +274,18 @@ const void *HashTable::getKey( const void *id, unsigned long int nSkip )
                 for( nPos++; nPos != nOldPos; nPos=(nPos+1)%nTableSize )
                 {
                         if( !isFilled( nPos ) ) return NULL;
-                        if( hFunc->cmpIDs( id, aTable[nPos].id ) &&
-                                aTable[nPos].bDeleted == false )
+                        if( aTable[nPos].bDeleted == false )
                         {
-                                if( nSkip == 0 )
+                                if( hFunc->cmpIDs( id, aTable[nPos].id ) )
                                 {
-                                        return aTable[nPos].id;
-                                }
-                                else
-                                {
-                                        nSkip--;
+                                        if( nSkip == 0 )
+                                        {
+                                                return aTable[nPos].id;
+                                        }
+                                        else
+                                        {
+                                                nSkip--;
+                                        }
                                 }
                         }
                 }
diff --git a/src/md5.cpp b/src/md5.cpp
index ed7e4ac..c0cacdd 100644
--- a/src/md5.cpp
+++ b/src/md5.cpp
@@ -143,7 +143,7 @@ long *md5::c2l( const char *str, long len, long *nNewLen )
         long mlen = OBLOC( len8 );
     long flen = (((mlen/16)+((mlen%16)?(1):(0))))*16;
         long *aBin = new long[flen];
-        memset( aBin, 0, flen );
+        memset( aBin, 0, flen*4 );
         
         for( long i = 0; i < len8; i+=8 )
         {