Initializing a variable to avoid using its unitialized value.

Using the value of an unitialized variable is not safe.

The test case avoids improper null termination with a buffer address type complexity.

The test case shows a weakness of improper null termination with a buffer address type complexity.

No buffer overflow even if the input is not validated. Every operation may write outside the bound of the statically allocated character array.

Buffer overflow if the input is not validated. Every operation may write outside the bound of the statically allocated character array.

The variable px now is initialized, avoiding the use of an uninitialized value.

Using the value of an unitialized variable is not safe.

No memory leak, the allocated memory is freed.

Memory leak, the allocated memory is never freed.

The SQL Injection is not possible because the arguments are validated before the MySQL query.

The SQL Injection is possible because the arguments are not validated before the MySQL query.

If we check the return of scanf we know how many parameters have been passed.

If we do not check the return of scanf we do not know how many parameters have been passed.

The test case shows a correct pointer scaling.

The test case shows an unintentional pointer scaling.

The test case prevents a memory leak by releasing memory allocated in a loop.

The test case shows a memory leak occurring due to memory not being released inside of a loop.

The test case prevents a memory leak with a pointer which is in a structure.

The test case shows a memory leak with a pointer which is in a structure.

The test case avoids a Cross-Site Scripting (XSS) in a C/CGI program with scope complexity.

The test case exposes a Cross-Site Scripting (XSS) in a C/CGI program with scope complexity.

The test case avoids a Cross-Site Scripting (XSS) in a C/CGI program with a string which is in a structure.

The test case exposes a Cross-Site Scripting (XSS) in a C/CGI program with a string which is in a structure.

The test case avoids a Cross-Site Scripting (XSS) in a C/CGI program with an address alias level code complexity.