def get_string(self, addr, max_data_size=-1, s=None):
if s is None:
s = self.get_section(addr)
if s is None:
return None
data = s.data
off = addr - s.start
txt = []
c = 0
i = 0
while (i < max_data_size or max_data_size == -1) and off < len(data):
c = data[off]
if c == 0:
break
if c not in BYTES_PRINTABLE_SET:
break
txt.append(get_char(c))
off += 1
i += 1
if i == max_data_size:
if c != 0:
txt.append("...")
elif c != 0 or i == 0:
return None
return ''.join(txt)
def get_string(self, addr, max_data_size=-1, s=None):
if s is None:
s = self.get_section(addr)
if s is None:
return None
data = s.data
off = addr - s.start
txt = []
c = 0
i = 0
while (i < max_data_size or max_data_size == -1) and off < len(data):
c = data[off]
if c == 0:
break
if c not in BYTES_PRINTABLE_SET:
break
txt.append(get_char(c))
off += 1
i += 1
if i == max_data_size:
if c != 0:
txt.append("...")
elif c != 0 or i == 0:
return None
return ''.join(txt)
def _imm(self,
imm,
op_size,
hexa,
section=None,
print_data=True,
force_dont_print_data=False,
is_from_jump=False):
if self.gctx.capstone_string != 0:
hexa = True
if hexa:
imm = unsigned(imm)
label_printed = self._label(imm, print_colon=False)
if label_printed:
ty = self._dis.mem.get_type(imm)
# ty == -1 : from the terminal (with -x) there are no xrefs if
# the file was loaded without a database.
if ty == MEM_HEAD and self._dis.mem.get_type(
self._dis.mem.get_head_addr(imm)) == MEM_ASCII:
ty = MEM_ASCII
if imm in self._dis.xrefs and ty != MEM_UNK and \
ty != MEM_ASCII or ty == -1:
return
if ty == MEM_ASCII:
print_data = True
force_dont_print_data = False
if section is None:
section = self._binary.get_section(imm)
if section is not None and section.start == 0:
section = None
# For a raw file, if the raw base is 0 the immediate is considered
# as an address only if it's in the symbols list.
raw_base_zero = self._binary.type == T_BIN_RAW and self.gctx.raw_base == 0
if section is not None and not raw_base_zero:
if not label_printed:
self._address(imm, print_colon=False, notprefix=True)
if not force_dont_print_data and print_data:
s = self._binary.get_string(imm, self.gctx.max_data_size)
if s is not None:
s = s.replace("\n", "\\n")
self._add(" ")
self._string('"' + s + '"')
return
if label_printed:
return
if op_size == 1:
if imm == 10:
self._string("'\\n'")
else:
self._string("'%s'" % get_char(imm))
elif hexa:
if is_from_jump:
self._error(hex(imm))
else:
self._add(hex(imm))
else:
if op_size == 4:
self._add(str(c_int(imm).value))
elif op_size == 2:
self._add(str(c_short(imm).value))
else:
self._add(str(c_long(imm).value))
if imm > 0:
if op_size == 4:
packed = struct.pack("<L", imm)
elif op_size == 8:
packed = struct.pack("<Q", imm)
else:
return
if set(packed).issubset(BYTES_PRINTABLE_SET):
self._string(" \"" + "".join(map(chr, packed)) + "\"")
return
def _imm(self, imm, op_size, hexa, section=None, print_data=True,
force_dont_print_data=False, is_from_jump=False):
if self.gctx.capstone_string != 0:
hexa = True
if hexa:
imm = unsigned(imm)
label_printed = self._label(imm, print_colon=False)
if label_printed:
ty = self._dis.mem.get_type(imm)
# ty == -1 : from the terminal (with -x) there are no xrefs if
# the file was loaded without a database.
if ty == MEM_HEAD and self._dis.mem.get_type(
self._dis.mem.get_head_addr(imm)) == MEM_ASCII:
ty = MEM_ASCII
if imm in self._dis.xrefs and ty != MEM_UNK and \
ty != MEM_ASCII or ty == -1:
return
if ty == MEM_ASCII:
print_data = True
force_dont_print_data = False
if section is None:
section = self._binary.get_section(imm)
if section is not None and section.start == 0:
section = None
# For a raw file, if the raw base is 0 the immediate is considered
# as an address only if it's in the symbols list.
raw_base_zero = self._binary.type == T_BIN_RAW and self.gctx.raw_base == 0
if section is not None and not raw_base_zero:
if not label_printed:
self._address(imm, print_colon=False, notprefix=True)
if not force_dont_print_data and print_data:
s = self._binary.get_string(imm, self.gctx.max_data_size)
if s is not None:
s = s.replace("\n", "\\n")
self._add(" ")
self._string('"' + s + '"')
return
if label_printed:
return
if op_size == 1:
if imm == 10:
self._string("'\\n'")
else:
self._string("'%s'" % get_char(imm))
elif hexa:
if is_from_jump:
self._error(hex(imm))
else:
self._add(hex(imm))
else:
if op_size == 4:
self._add(str(c_int(imm).value))
elif op_size == 2:
self._add(str(c_short(imm).value))
else:
self._add(str(c_long(imm).value))
if imm > 0:
if op_size == 4:
packed = struct.pack("<L", imm)
elif op_size == 8:
packed = struct.pack("<Q", imm)
else:
return
if set(packed).issubset(BYTES_PRINTABLE_SET):
self._string(" \"" + "".join(map(chr, packed)) + "\"")
return
