csrf_exempt

In C, the csrf_exempt attribute is used to indicate that a specific function or variable should be exempted from Cross-Site Request Forgery (CSRF) protection. By applying the csrf_exempt attribute to a function or variable, it tells the compiler or code analyzer to skip the CSRF protection checks for that specific entity.

Here's an example of how the csrf_exempt attribute can be used in C:

#include <stdio.h>

__attribute__((csrf_exempt))
void vulnerableFunction()
{
    printf("This function is exempt from CSRF protection.\n");
}

int main()
{
    vulnerableFunction();
    return 0;
}

In the example above, the vulnerableFunction is marked with the csrf_exempt attribute, which means that it will not be subject to CSRF protection. When the vulnerableFunction is called, it will execute without any CSRF checks.

Please note that the csrf_exempt attribute is not a standard feature of the C language, but it can be implemented using compiler-specific or platform-specific attributes or directives. The example provided uses the __attribute__((csrf_exempt)) syntax, which is specific to certain compilers.

It's important to exercise caution when using the csrf_exempt attribute, as it can potentially introduce security vulnerabilities if not used properly.