uintptr_t next_opcode(uintptr_t address)
{
ud_t ud_obj;
ud_init(&ud_obj, 32);
ud_set_input_buffer(&ud_obj, (uint8_t*)address, (size_t)-1);
return address + ud_decode(&ud_obj);
}
/* =============================================================================
* ud_disassemble() - disassembles one instruction and returns the number of
* bytes disassembled. A zero means end of disassembly.
* =============================================================================
*/
extern unsigned int
ud_disassemble(struct ud* u)
{
if (ud_input_end(u))
return 0;
u->asm_buf[0] = 0;
if (ud_decode(u) == 0)
return 0;
if (u->translator)
u->translator(u);
return ud_insn_len(u);
}
/* =============================================================================
* ud_disassemble
* Disassembles one instruction and returns the number of
* bytes disassembled. A zero means end of disassembly.
* =============================================================================
*/
extern unsigned int
ud_disassemble(struct ud* u)
{
int len;
if (u->inp_end) {
return 0;
}
if ((len = ud_decode(u)) > 0) {
if (u->translator != NULL) {
u->asm_buf[0] = '\0';
u->translator(u);
}
}
return len;
}
uintptr_t next_opcode(uintptr_t address, uint8_t opcode, size_t length)
{
ud_t ud_obj;
ud_init(&ud_obj, 32);
ud_set_input_buffer(&ud_obj, (uint8_t*)address, (size_t)-1);
size_t size = 0;
do
{
size = ud_decode(&ud_obj);
if ((size == length) && (*(uint8_t*)address == opcode)) break;
address += size;
} while (size);
return address;
}
