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How to get stack xrefs in IDAPython?
IDA builds stack xrefs dynamically when you ask for it. In order to use the function, it requires a little bit of setup. get_stkvar (op_t op, sval_t v): op is a reference to an instruction, v is the immediate value in the operand. Usually you just use op.addr.
How to get xrefs to a struct in Ida?
As you mentioned, when trying to get the xrefs to the struct, you get two types of results: 0xFF000000 and above addresses, where the struct is used as a stack variable. In IDA the stack variables for a function are represented internally as a struct, with each stack variable a member of that struct.
How to get a stack variable in IDAPython?
Usually you just use op.addr. It returns a tuple, (member_t, val). member_t is a pointer to the stack variable, which is what we need. val is the same value as the soff field in the member_t for the stack var. More on this later.
How are stack variables represented as struct in Ida?
In IDA the stack variables for a function are represented internally as a struct, with each stack variable a member of that struct. Knowing that, we can infer that the weird xrefs are member-ids (which they are).
How to get input from IDAPython reverse engineering stack?
You can use the ask_* functions from the ida_kernwin module. There are also the choose_* functions if you want the user to choose something from the database (function, segment, structure). And fully customisable forms (see this example ).
How to get input from user with IDAPython?
How can I get input from user with IdaPython? You can use the ask_* functions from the ida_kernwin module. There are also the choose_* functions if you want the user to choose something from the database (function, segment, structure). And fully customisable forms (see this example ).
Why do reverse engineers use Java Native Interface?
Java Native Interface (JNI) is sometimes deliberately used to confuse reverse engineers (to be fair, there are legitimate reasons for using JNI, such as improving performance or supporting legacy code).
Why do I get an origin VC + + error?
Origin / VC++ and .dll errors with Orig… / Wednesday, February 20, 2019. If you get .dll errors, like your VC++ runtime package has not installed correctly when you are trying to install your game, troubleshoot with these steps. See if you have any pending Windows Updates. If you do, they could be causing the errors.