In C: sending func pointers, calling the func with it, playing with EIP, jum_buf and longjmp

Posted by Yonatan on Stack Overflow See other posts from Stack Overflow or by Yonatan
Published on 2010-05-18T08:53:50Z Indexed on 2010/05/18 9:01 UTC
Read the original article Hit count: 358

Filed under:

c

|

longjmp

|

function-pointers

Hello Internet !

I need to make sure i understand some basic stuff first: 1. how do i pass function A as a parameter to function B? 2. how do i call function A from inside B ?

now for the big whammy:

I'm trying to do something along the lines of this: jmp_buf buf; buf.__jmpbuf[JB_PC] = functionA; longjmp(buf,10);

meaning that i want to use longjmp in order to go to a function. how should i do it ?

thank you very much internet people ! Yonatan

Related posts about longjmp

setjmp , longjmp

as seen on Stack Overflow - Search for 'Stack Overflow'
hi , anyways to implement multitasking using setjmp and longjmp >>> More
Multitasking using setjmp, longjmp

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, is there a way to implement multitasking using setjmp and longjmp >>> More
In C: sending func pointers, calling the func with it, playing with EIP, jum_buf and longjmp

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello Internet ! I need to make sure i understand some basic stuff first: 1. how do i pass function A as a parameter to function B? 2. how do i call function A from inside B ? now for the big whammy: I'm trying to do something along the lines of this: jmp_buf buf; buf.__jmpbuf[JB_PC] = functionA; longjmp(buf… >>> More
What is weird about wrapping setjmp and longjmp?

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello. I am using setjmp and longjmp for the first time, and I ran across an issue that comes about when I wrap setjmp and longjmp. I boiled the code down to the following example: #include <stdio.h> #include <setjmp.h> jmp_buf jb; int mywrap_save() { int i = setjmp(jb); return… >>> More
Problem with setjmp/longjmp

as seen on Stack Overflow - Search for 'Stack Overflow'
The code below is just not working. Can anybody point out why #define STACK_SIZE 1524 static void mt_allocate_stack(struct thread_struct *mythrd) { unsigned int sp = 0; void *stck; stck = (void *)malloc(STACK_SIZE); sp = (unsigned int)&((stck)); sp = sp + STACK_SIZE; … >>> More

Developer IT

In C: sending func pointers, calling the func with it, playing with EIP, jum_buf and longjmp - Developer IT

In C: sending func pointers, calling the func with it, playing with EIP, jum_buf and longjmp

c

longjmp

function-pointers

Related posts about c

Related posts about longjmp

setjmp , longjmp

Multitasking using setjmp, longjmp

In C: sending func pointers, calling the func with it, playing with EIP, jum_buf and longjmp

What is weird about wrapping setjmp and longjmp?

Problem with setjmp/longjmp

Categories cloud