def GetStrLitContents(ea):
potential_len = ida_bytes.get_max_strlit_length(ea, ida_nalt.STRTYPE_C_16)
if(potential_len > 0):
# If we get a non zero length, this is likely our string
return ida_bytes.get_strlit_contents(ea, potential_len, ida_nalt.STRTYPE_C_16)
# If we didn't get a good length out of C_16, try 8 bit strings
potential_len = ida_bytes.get_max_strlit_length(ea, ida_nalt.STRTYPE_C)
if(potential_len > 0):
return ida_bytes.get_strlit_contents(ea, potential_len, ida_nalt.STRTYPE_C)
#print("Error! %lu not a string" % (ea))
return ""
def get_string(self, string_idx):
addr = self.nn_strtab.altval(string_idx, Dex.STRTAB_TAB)
if addr is 0:
return None
length = ida_bytes.get_max_strlit_length(
addr, STRTYPE_C,
ida_bytes.ALOPT_IGNHEADS | ida_bytes.ALOPT_IGNPRINT)
return ida_bytes.get_strlit_contents(addr, length, STRTYPE_C)
def get_string(self, from_ea, string_idx):
addr = self.idx_to_ea(from_ea, string_idx, Dex.DEXVAR_STRING_IDS)
if addr == ida_idaapi.BADADDR:
return None
length = ida_bytes.get_max_strlit_length(
addr, idc.STRTYPE_C,
ida_bytes.ALOPT_IGNHEADS | ida_bytes.ALOPT_IGNPRINT)
return ida_bytes.get_strlit_contents(addr, length, idc.STRTYPE_C)
def create_and_get_typec_string(ea):
size = ida_bytes.get_max_strlit_length(
ea, ida_nalt.STRTYPE_C, ida_bytes.ALOPT_IGNCLT
| ida_bytes.ALOPT_IGNHEADS | ida_bytes.ALOPT_IGNPRINT)
if size == 0:
return ""
ida_bytes.create_strlit(ea, size, ida_nalt.STRTYPE_C)
string = str(ida_bytes.get_strlit_contents(ea, size, ida_nalt.STRTYPE_C),
encoding="utf-8")
return string
def op_type_changed(self, ea, n):
flags = ida_bytes.get_flags(ea)
self.log("op_type_changed(ea=0x%08X, n=%d). Flags now: 0x%08X" % (ea, n, flags))
buf = ida_nalt.opinfo_t()
opi = ida_bytes.get_opinfo(buf, ea, n, flags)
if opi:
if ida_bytes.is_struct(flags):
self.log("New struct: 0x%08X (name=%s)" % (
opi.tid,
ida_struct.get_struc_name(opi.tid)))
elif ida_bytes.is_strlit(flags):
encidx = ida_nalt.get_str_encoding_idx(opi.strtype)
if encidx == ida_nalt.STRENC_DEFAULT:
encidx = ida_nalt.get_default_encoding_idx(ida_nalt.get_strtype_bpu(opi.strtype))
encname = ida_nalt.get_encoding_name(encidx)
strlen = ida_bytes.get_max_strlit_length(
ea,
opi.strtype,
ida_bytes.ALOPT_IGNHEADS | ida_bytes.ALOPT_IGNCLT)
raw = ida_bytes.get_strlit_contents(ea, strlen, opi.strtype) or b""
self.log("New strlit: 0x%08X, raw hex=%s (encoding=%s)" % (
opi.strtype,
binascii.hexlify(raw),
encname))
elif ida_bytes.is_off(flags, n):
self.log("New offset: refinfo={target=0x%08X, base=0x%08X, tdelta=0x%08X, flags=0x%X}" % (
opi.ri.target,
opi.ri.base,
opi.ri.tdelta,
opi.ri.flags))
elif ida_bytes.is_enum(flags, n):
self.log("New enum: 0x%08X (enum=%s), serial=%d" % (
opi.ec.tid,
ida_enum.get_enum_name(opi.ec.tid),
opi.ec.serial))
pass
elif ida_bytes.is_stroff(flags, n):
parts = []
for i in range(opi.path.len):
tid = opi.path.ids[i]
parts.append("0x%08X (name=%s)" % (tid, ida_struct.get_struc_name(tid)))
self.log("New stroff: path=[%s] (len=%d, delta=0x%08X)" % (
", ".join(parts),
opi.path.len,
opi.path.delta))
elif ida_bytes.is_custom(flags) or ida_bytes.is_custfmt(flags, n):
self.log("New custom data type") # unimplemented
else:
print("Cannot retrieve opinfo_t")
def read_cstring(ea):
len = ida_bytes.get_max_strlit_length(ea, ida_nalt.STRTYPE_C)
return ida_bytes.get_strlit_contents(ea, len, ida_nalt.STRTYPE_C)
def get_str_literal(addr):
type = ida_nalt.get_str_type(addr)
length = ida_bytes.get_max_strlit_length(addr, type, ida_bytes.ALOPT_IGNHEADS)
return ida_bytes.get_strlit_contents(addr, length, type).decode('ascii')
def read_str(ea: int) -> Optional[str]:
length = ida_bytes.get_max_strlit_length(ea, ida_nalt.STRTYPE_C)
value = ida_bytes.get_strlit_contents(ea, length, ida_nalt.STRTYPE_C)
return value.decode("utf-8") if value else value
def get_string(self, from_ea, string_idx):
addr = self.idx_to_ea(from_ea, string_idx, Dex.DEXVAR_STRING_IDS)
if addr == ida_idaapi.BADADDR:
return None
length = ida_bytes.get_max_strlit_length(addr, idc.STRTYPE_C, ida_bytes.ALOPT_IGNHEADS|ida_bytes.ALOPT_IGNPRINT)
return ida_bytes.get_strlit_contents(addr, length, idc.STRTYPE_C)
