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11.21.2008 at 02:29AM PST, ID: 23924548
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7.6

String termination error while reading from file.

Asked by Harishsona in Windows MFC Programming, C++ Builder, ActiveX

Tags:

I am writing a structure in to a file and while reading the structure from file it is giving a string termination error in static anlaysis tool.
Please advise me , the solution.
Thanks in advance.Start Free Trial 
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//structure
struct RECORD 
{
    char strCen[7];
   DefPr[4];
 };
//Writing  the structure
CFile m_fp;
m_fp.Write(&pstRecord, sizeof(RECORD));
 
//Reading 
int nCount;
int reclen = sizeof(RECORD);
nFileLen = m_fp.GetLength ();
int noRec = nFileLen/reclen;
RECORD *pRecords = new RECORD[noRec];
if(nFileLen >= reclen)
{
	m_pRebuildFile.Seek (0 , CFile::begin );
	while(nRecordsRead < nFileLen)
	{
	//Read the File for every reclen bytes and sore in the structure.
	nRecordsRead += m_fp.Read (&pRecords[nCount], sizeof(pRecords));
		++nCount;
	}	
}
 
//while using the structure record
int cen = atoi(pRecords[1]->strcen)
 //string termination when it calls atoi() but  the source buffer might not contain 
//a null terminator. A buffer overflow is possible.
//also when 
strcmp(prevcen, atoi(pRecords[1]->strcen) ) //giving the string termination error
if(0==strcmp(pRecords[1]->DefPr, "XYZ" ) )  //giving the string termination error
[+][-]11.23.2008 at 01:23PM PST, ID: 23025951

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About this solution

Zones: Windows MFC Programming, C++ Builder, ActiveX
Tags: MS VC++ 2005
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Solution Provided By: itsmeandnobodyelse
Participating Experts: 1
Solution Grade: B
 
 
 
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