Negate, Inject & Restore

In the next example we are using the snapshot engine:

• Passing a file as argument.

• We select we want to use the symbolic engine.

• We taint the buffer that fread()reads from the file.

• We create a snapshot in the function that parses the buffer read from the file.

• When a condition is evaluated we negate it, inject the solution in memory and restore the snapshot with it.

• The solution will be "valid" so we will satisfy the existent conditions.