Subj : Re: General Protection Fault
To   : borland.public.cpp.borlandcpp
From : Ed Mulroy [TeamB]
Date : Sun Jan 23 2005 11:00 am

Use a function which will respect the size of the buffer.  While you are at
it change the return type of main to int so the code is be legal C/C++.

#include <stdio.h>

int main()
  {
  char name[50];
  printf("Hello World!\n");
  printf("Enter your name...\n") ;
  fgets(name, sizeof(name), stdin);
  printf("Hello %s\n",name) ;
  return 0;
  }

..  Ed

> Todd Burch wrote in message
> news:41f3a38c$1@newsgroups.borland.com...
>
> I can cause a general protection fault quite easily, and
> I know exactly why,  but I don't know the correct technique
> to prevent getting one.
>
> Here is the code:
>
> #include <stdio.h>
> void main()
>   {
>   char name[50] ;
>   printf("Hello World!\n");
>   printf("Enter your name...\n") ;
>   gets(name);
>   printf("Hello %s\n",name) ;
>   }
>
> When I enter a name quite a bit longer than 50 bytes, I get
> the fault.  How does one code in C/C++ to make sure this
> is not allowed
> to happen?
>
> I suspect it comes down to working with pointers... and
> using a lower level interface than gets().

.