utilitylibraries/libutils/src/descriptor8tochar.cpp
changeset 0 e4d67989cc36
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/utilitylibraries/libutils/src/descriptor8tochar.cpp	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,263 @@
+/*
+* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:   Contains the source for Descriptor8 to char * conversions
+ *
+*/
+
+
+ 
+#include "libutils.h"
+  
+
+	
+ /**
+   * Converts a descriptor of type TBuf8 to char*
+   * @param aSrc is the descriptor of type TBuf8 that is to be converted to char*
+   * @param aDes is a char* that will hold the result after conversion. Care should be taken to 
+   * allocate sufficient amount of memory to char* in the calling function. The amount of memory that is
+   * being allocated to the char* is being made known using n_size
+   * @param n_size is the size of the char*. This should have a minimum value equal to size of the 
+   * descriptor. Incase its less, the conversion is going to fail and returns the corresponding error code
+   */
+
+EXPORT_C int Tbuf8ToChar(TDes8& aSrc, char* aDes, int& n_size)
+{	
+    unsigned int ilen = aSrc.Length();
+    
+    if (0 == ilen)
+    {
+    	return EDescriptorNoData;
+    }
+	else if(!aDes)
+	{
+		return EInvalidPointer;
+	}
+	else if (n_size < (ilen+1))
+	{
+		n_size = ilen + 1;
+		return EInvalidSize;
+	}
+
+	memcpy(aDes , (const char *)aSrc.Ptr(), ilen);
+	
+	aDes[ilen] = '\0';
+		
+	return ESuccess;
+}
+
+ /**
+    * Converts a descriptor of type TBufC8 to char*
+   * @param aSrc is the descriptor of type TBufC8 that is to be converted to char*
+   * @param aDes is a char* that will hold the result after conversion. Care should be taken to 
+   * allocate sufficient amount of memory to char* in the calling function. The amount of memory that is
+   * being allocated to the char* is being made known using n_size
+   * @param n_size is the size of the char*. This should have a minimum value equal to size of the 
+   * descriptor. Incase its less, the conversion is going to fail and returns the corresponding error code
+   */
+
+EXPORT_C int Tbufc8ToChar(TDesC8& aSrc, char* aDes, int& n_size)
+{	
+    unsigned int ilen = aSrc.Length();
+    
+    if (0 == ilen)
+    {
+    	return EDescriptorNoData;
+    }
+    else if(!aDes)
+    {
+    	return EInvalidPointer;
+    }
+    else if(n_size < ilen+1)
+    {
+    	n_size = ilen;
+    	return EInvalidSize;
+    }
+    	
+	memcpy(aDes, aSrc.Ptr(), ilen);
+	aDes[ilen] = '\0';
+        
+    return ESuccess;
+}
+
+/**
+   * Converts a descriptor of type TLitC8 to char*
+   * @param aSrc is the descriptor of type TLitC8 that is to be converted to char*
+   * @param aDes is a char* that will hold the result after conversion. Care should be taken to 
+   * allocate sufficient amount of memory to char* in the calling function. The amount of memory that is
+   * being allocated to the char* is being made known using n_size
+   * @param n_size is the size of the char*. This should have a minimum value equal to size of the 
+   * descriptor. Incase its less, the conversion is going to fail and returns the corresponding error code
+   */
+	
+EXPORT_C int Tlitc8ToChar(const TDesC8& aSrc, char* aDes, int& n_size)
+{   
+    unsigned int ilen = aSrc.Length();
+    
+    if (0 == ilen )
+    {
+    	return EDescriptorNoData;
+    }     
+    else if(!aDes)
+    {
+    	return EInvalidPointer;
+    }
+    else if (n_size < ilen )
+    {
+    	n_size = ilen + 1;
+    	return EInvalidSize;
+    }
+    
+    memcpy(aDes, (char *)aSrc.Ptr(), ilen);
+	aDes[ilen] = '\0';
+	
+	return ESuccess;	 
+}
+
+
+ /**
+   * Converts a descriptor of type TPtr8 to character stream
+   *
+   * @param aSrc is the descriptor to be converted , aDes is the 
+   * reference to the character sream where the result of conversion 
+   * is stored , n_size specifies the conversion size of the string 
+   * @return Status code (0 is ESuccess, -2 is EInvalidSize ,
+   *  -4 is EInvalidPointer)
+   */
+EXPORT_C int Tptr8ToChar(const TDes8& aSrc, char* aDes, int& n_size)
+{
+    unsigned int ilen = aSrc.Length();
+	
+	if (0 == ilen)
+    {
+    	return EDescriptorNoData;	
+    }
+	else if ( !aDes )
+    {
+        return EInvalidPointer;
+    }
+    else if (n_size < ilen)
+    {
+    	n_size = ilen + 1;
+    	return EInvalidSize;
+    }
+    
+	memcpy(aDes , (const char *)aSrc.Ptr(), ilen);
+	aDes[ilen] = '\0';
+    
+    return ESuccess;
+}
+
+ /**
+   * Converts a descriptor of type TPtrC8 to character stream
+   *
+   * @param aSrc is the descriptor to be converted , aDes is the 
+   * reference to the character sream where the result of conversion 
+   * is stored , n_size specifies the conversion size of the string 
+   * @return Status code (0 is ESuccess, -2 is EInvalidSize ,
+   *  -4 is EInvalidPointer)
+   */
+EXPORT_C int Tptrc8ToCharp(TPtrC8& aSrc, char* aDes, int& n_size)
+{
+    unsigned int ilen = aSrc.Length();
+	if (0 == ilen)
+    {
+    	return EDescriptorNoData;	
+    }
+	else if ( !aDes )
+    {
+        return EInvalidPointer;
+    }
+    else if (n_size < ilen)
+    {
+    	n_size = ilen + 1;
+    	return EInvalidSize;
+    }
+	
+	memcpy(aDes , aSrc.Ptr(), ilen);
+	aDes[ilen] = '\0';
+    
+    return ESuccess;
+}
+
+ /**
+   * Converts a descriptor of type RBuf8 to character stream
+   *
+   * @param aSrc is the descriptor to be converted , aDes is the 
+   * reference to the character sream where the result of conversion 
+   * is stored , n_size specifies the conversion size of the string 
+   * @return Status code (0 is ESuccess, -2 is EInvalidSize ,
+   *  -4 is EInvalidPointer , -5 is EDescriptorNoData)
+   */
+   
+EXPORT_C int Rbuf8ToChar(TDes8& aSrc, char* aDes, int& n_size)
+{
+    unsigned int ilen = aSrc.Length();
+    
+    if (0 == ilen)
+    {
+    	return EDescriptorNoData;	
+    } 
+	else if ( !aDes )
+    {
+        return EInvalidPointer;
+    }
+    else if (n_size < ilen)
+    {
+    	n_size = ilen + 1;
+    	return EInvalidSize;
+    }
+    
+	memcpy (aDes,(char *)aSrc.Ptr(), ilen);
+	aDes[ilen] = '\0';
+
+	return ESuccess;
+}
+
+ /**
+   * Converts a descriptor of type HBufC8 to character stream
+   *
+   * @param aSrc is the descriptor to be converted , aDes is the 
+   * reference to the character sream where the result of conversion 
+   * is stored , n_size specifies the conversion size of the string 
+   * @return Status code (0 is ESuccess, -2 is EInvalidSize ,
+   *  -4 is EInvalidPointer , -5 is EDescriptorNoData)
+   */
+
+EXPORT_C int Hbufc8ToChar(HBufC8 *aSrc, char* aDes, int& n_size)
+{
+    unsigned int ilen = 0;
+    
+    if ( !aDes || !aSrc)
+    {
+        return EInvalidPointer;
+    }
+    else 
+    {
+        ilen = aSrc->Length();
+        if (0 == ilen)
+        {
+        	return EDescriptorNoData;		
+        }
+        else if (n_size < ilen)
+    	{
+    		n_size = ilen + 1;
+    		return EInvalidSize;
+    	}  	
+    } 	
+    
+	memcpy (aDes,(char *)aSrc->Ptr(), ilen);
+	aDes[ilen] = '\0';
+
+	return ESuccess;
+}