dcsimg
Login | Register   
LinkedIn
Google+
Twitter
RSS Feed
Download our iPhone app
TODAY'S HEADLINES  |   ARTICLE ARCHIVE  |   FORUMS  |   TIP BANK
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.


Tip of the Day
Language: C++
Expertise: Intermediate
Jan 25, 2006

WEBINAR:

On-Demand

Building the Right Environment to Support AI, Machine Learning and Deep Learning


Protecting Freed Memory

When you're freeing memory, remember to set the memory contents to 0 so no other malicious program can read it after it's been freed.

//For example

#define DATA_SIZE
BOOL function()
{
   char pszData = NULL;  //Memory pointer
  
   //Allocate memory
   pszData = new char [DATA_SIZE];
   if(pszData == NULL){
      return(FALSE);
   }

   //Reset the memory Initially
   memset(pszData, 0, sizeof(char) *  DATA_SIZE);

   .... //Use the memory and free it before the return()    statement

  //The below part is Important to protect the data
  memset(pszData, 0, sizeof(char) *  DATA_SIZE);
  delete [] pszData;
  
  return(TRUE);
}
Sandesh Rane
 
Comment and Contribute

 

 

 

 

 


(Maximum characters: 1200). You have 1200 characters left.

 

 

Sitemap
Thanks for your registration, follow us on our social networks to keep up-to-date