utilitylibraries/libutils/src/descriptor8tochar.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 02:01:42 +0200
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/*
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* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:   Contains the source for Descriptor8 to char * conversions
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 *
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*/
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#include "libutils.h"
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 /**
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   * Converts a descriptor of type TBuf8 to char*
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   * @param aSrc is the descriptor of type TBuf8 that is to be converted to char*
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   * @param aDes is a char* that will hold the result after conversion. Care should be taken to 
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   * allocate sufficient amount of memory to char* in the calling function. The amount of memory that is
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   * being allocated to the char* is being made known using n_size
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   * @param n_size is the size of the char*. This should have a minimum value equal to size of the 
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   * descriptor. Incase its less, the conversion is going to fail and returns the corresponding error code
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   */
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EXPORT_C int Tbuf8ToChar(TDes8& aSrc, char* aDes, int& n_size)
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{	
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    unsigned int ilen = aSrc.Length();
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    if (0 == ilen)
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    {
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    	return EDescriptorNoData;
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    }
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	else if(!aDes)
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	{
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		return EInvalidPointer;
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	}
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	else if (n_size < (ilen+1))
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	{
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		n_size = ilen + 1;
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		return EInvalidSize;
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	}
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	memcpy(aDes , (const char *)aSrc.Ptr(), ilen);
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	aDes[ilen] = '\0';
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	return ESuccess;
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}
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 /**
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    * Converts a descriptor of type TBufC8 to char*
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   * @param aSrc is the descriptor of type TBufC8 that is to be converted to char*
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   * @param aDes is a char* that will hold the result after conversion. Care should be taken to 
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   * allocate sufficient amount of memory to char* in the calling function. The amount of memory that is
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   * being allocated to the char* is being made known using n_size
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   * @param n_size is the size of the char*. This should have a minimum value equal to size of the 
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   * descriptor. Incase its less, the conversion is going to fail and returns the corresponding error code
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   */
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EXPORT_C int Tbufc8ToChar(TDesC8& aSrc, char* aDes, int& n_size)
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{	
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    unsigned int ilen = aSrc.Length();
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    if (0 == ilen)
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    {
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    	return EDescriptorNoData;
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    }
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    else if(!aDes)
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    {
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    	return EInvalidPointer;
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    }
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    else if(n_size < ilen+1)
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    {
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    	n_size = ilen;
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    	return EInvalidSize;
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    }
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	memcpy(aDes, aSrc.Ptr(), ilen);
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	aDes[ilen] = '\0';
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    return ESuccess;
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}
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/**
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   * Converts a descriptor of type TLitC8 to char*
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   * @param aSrc is the descriptor of type TLitC8 that is to be converted to char*
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   * @param aDes is a char* that will hold the result after conversion. Care should be taken to 
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   * allocate sufficient amount of memory to char* in the calling function. The amount of memory that is
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   * being allocated to the char* is being made known using n_size
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   * @param n_size is the size of the char*. This should have a minimum value equal to size of the 
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   * descriptor. Incase its less, the conversion is going to fail and returns the corresponding error code
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   */
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EXPORT_C int Tlitc8ToChar(const TDesC8& aSrc, char* aDes, int& n_size)
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{   
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    unsigned int ilen = aSrc.Length();
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    if (0 == ilen )
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    {
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    	return EDescriptorNoData;
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    }     
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    else if(!aDes)
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    {
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    	return EInvalidPointer;
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diff changeset
   114
    }
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   115
    else if (n_size < ilen )
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parents:
diff changeset
   116
    {
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   117
    	n_size = ilen + 1;
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   118
    	return EInvalidSize;
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diff changeset
   119
    }
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   120
    
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   121
    memcpy(aDes, (char *)aSrc.Ptr(), ilen);
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   122
	aDes[ilen] = '\0';
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diff changeset
   123
	
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   124
	return ESuccess;	 
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   125
}
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parents:
diff changeset
   126
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parents:
diff changeset
   127
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   128
 /**
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   129
   * Converts a descriptor of type TPtr8 to character stream
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   130
   *
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   131
   * @param aSrc is the descriptor to be converted , aDes is the 
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   132
   * reference to the character sream where the result of conversion 
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   133
   * is stored , n_size specifies the conversion size of the string 
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   134
   * @return Status code (0 is ESuccess, -2 is EInvalidSize ,
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   135
   *  -4 is EInvalidPointer)
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   136
   */
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   137
EXPORT_C int Tptr8ToChar(const TDes8& aSrc, char* aDes, int& n_size)
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   138
{
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   139
    unsigned int ilen = aSrc.Length();
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   140
	
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   141
	if (0 == ilen)
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   142
    {
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   143
    	return EDescriptorNoData;	
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   144
    }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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   145
	else if ( !aDes )
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parents:
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   146
    {
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diff changeset
   147
        return EInvalidPointer;
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   148
    }
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   149
    else if (n_size < ilen)
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   150
    {
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   151
    	n_size = ilen + 1;
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   152
    	return EInvalidSize;
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   153
    }
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parents:
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   154
    
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parents:
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   155
	memcpy(aDes , (const char *)aSrc.Ptr(), ilen);
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   156
	aDes[ilen] = '\0';
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parents:
diff changeset
   157
    
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   158
    return ESuccess;
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parents:
diff changeset
   159
}
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diff changeset
   160
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parents:
diff changeset
   161
 /**
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   162
   * Converts a descriptor of type TPtrC8 to character stream
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parents:
diff changeset
   163
   *
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   164
   * @param aSrc is the descriptor to be converted , aDes is the 
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parents:
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   165
   * reference to the character sream where the result of conversion 
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parents:
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   166
   * is stored , n_size specifies the conversion size of the string 
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parents:
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   167
   * @return Status code (0 is ESuccess, -2 is EInvalidSize ,
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parents:
diff changeset
   168
   *  -4 is EInvalidPointer)
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parents:
diff changeset
   169
   */
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diff changeset
   170
EXPORT_C int Tptrc8ToCharp(TPtrC8& aSrc, char* aDes, int& n_size)
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   171
{
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   172
    unsigned int ilen = aSrc.Length();
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diff changeset
   173
	if (0 == ilen)
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parents:
diff changeset
   174
    {
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   175
    	return EDescriptorNoData;	
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   176
    }
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parents:
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   177
	else if ( !aDes )
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parents:
diff changeset
   178
    {
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diff changeset
   179
        return EInvalidPointer;
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parents:
diff changeset
   180
    }
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parents:
diff changeset
   181
    else if (n_size < ilen)
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parents:
diff changeset
   182
    {
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   183
    	n_size = ilen + 1;
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parents:
diff changeset
   184
    	return EInvalidSize;
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diff changeset
   185
    }
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parents:
diff changeset
   186
	
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diff changeset
   187
	memcpy(aDes , aSrc.Ptr(), ilen);
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diff changeset
   188
	aDes[ilen] = '\0';
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parents:
diff changeset
   189
    
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diff changeset
   190
    return ESuccess;
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parents:
diff changeset
   191
}
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parents:
diff changeset
   192
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parents:
diff changeset
   193
 /**
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parents:
diff changeset
   194
   * Converts a descriptor of type RBuf8 to character stream
e4d67989cc36 Revision: 201002
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parents:
diff changeset
   195
   *
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diff changeset
   196
   * @param aSrc is the descriptor to be converted , aDes is the 
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   197
   * reference to the character sream where the result of conversion 
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parents:
diff changeset
   198
   * is stored , n_size specifies the conversion size of the string 
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   199
   * @return Status code (0 is ESuccess, -2 is EInvalidSize ,
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   200
   *  -4 is EInvalidPointer , -5 is EDescriptorNoData)
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parents:
diff changeset
   201
   */
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parents:
diff changeset
   202
   
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parents:
diff changeset
   203
EXPORT_C int Rbuf8ToChar(TDes8& aSrc, char* aDes, int& n_size)
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parents:
diff changeset
   204
{
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diff changeset
   205
    unsigned int ilen = aSrc.Length();
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parents:
diff changeset
   206
    
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parents:
diff changeset
   207
    if (0 == ilen)
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parents:
diff changeset
   208
    {
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diff changeset
   209
    	return EDescriptorNoData;	
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parents:
diff changeset
   210
    } 
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parents:
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   211
	else if ( !aDes )
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parents:
diff changeset
   212
    {
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diff changeset
   213
        return EInvalidPointer;
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parents:
diff changeset
   214
    }
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parents:
diff changeset
   215
    else if (n_size < ilen)
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parents:
diff changeset
   216
    {
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parents:
diff changeset
   217
    	n_size = ilen + 1;
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parents:
diff changeset
   218
    	return EInvalidSize;
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parents:
diff changeset
   219
    }
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parents:
diff changeset
   220
    
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parents:
diff changeset
   221
	memcpy (aDes,(char *)aSrc.Ptr(), ilen);
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parents:
diff changeset
   222
	aDes[ilen] = '\0';
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parents:
diff changeset
   223
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parents:
diff changeset
   224
	return ESuccess;
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parents:
diff changeset
   225
}
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parents:
diff changeset
   226
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   227
 /**
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parents:
diff changeset
   228
   * Converts a descriptor of type HBufC8 to character stream
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parents:
diff changeset
   229
   *
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parents:
diff changeset
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   * @param aSrc is the descriptor to be converted , aDes is the 
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   * reference to the character sream where the result of conversion 
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   * is stored , n_size specifies the conversion size of the string 
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   * @return Status code (0 is ESuccess, -2 is EInvalidSize ,
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   *  -4 is EInvalidPointer , -5 is EDescriptorNoData)
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   */
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EXPORT_C int Hbufc8ToChar(HBufC8 *aSrc, char* aDes, int& n_size)
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{
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    unsigned int ilen = 0;
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    if ( !aDes || !aSrc)
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    {
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        return EInvalidPointer;
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    }
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    else 
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    {
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        ilen = aSrc->Length();
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        if (0 == ilen)
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        {
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        	return EDescriptorNoData;		
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        }
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        else if (n_size < ilen)
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    	{
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    		n_size = ilen + 1;
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    		return EInvalidSize;
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    	}  	
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    } 	
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	memcpy (aDes,(char *)aSrc->Ptr(), ilen);
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	aDes[ilen] = '\0';
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	return ESuccess;
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}