def near_offset(self, offset):
'''Return the member near to the specified ``offset``.'''
min, max = map(lambda sz: sz + self.baseoffset,
(idaapi.get_struc_first_offset(self.owner.ptr),
idaapi.get_struc_last_offset(self.owner.ptr)))
if (offset < min) or (offset >= max):
logging.warn(
"{:s}.instance({:s}).members.near_offset : Requested offset {:+#x} not within bounds ({:#x},{:#x}). Trying anyways.."
.format(__name__, self.owner.name, offset, min, max))
res = offset - self.baseoffset
mem = idaapi.get_member(self.owner.ptr, res)
if mem is None:
logging.info(
"{:s}.instance({:s}).members.near_offset : Unable to locate member at offset {:+#x}. Trying get_best_fit_member instead."
.format(__name__, self.owner.name, res))
mem = idaapi.get_best_fit_member(self.owner.ptr, res)
if mem is None:
raise LookupError(
"{:s}.instance({:s}).members.near_offset : Unable to find member near offset : {:+#x}"
.format(__name__, self.owner.name, offset))
index = self.index(mem)
return self[index]
def loadMembersIDA7(struc, sid):
'''Returns list of tuples of (offset, memberName, member)'''
#mixing idc & idaapi, kinda annoying but need low-level idaapi for a
# type access, but cant dig into structs...
members = []
off = idaapi.get_struc_first_offset(struc)
while off != idc.BADADDR:
logger.debug('struc offset: 0x%x (%d)', off, off)
member = idaapi.get_member(struc, off)
if (member == 0) or (member is None):
pass #not really an error, i guess
else:
members.append((off, idc.get_member_name(sid, off), member))
off = idaapi.get_struc_next_offset(struc, off)
members.sort(key=lambda mem: mem[0])
return members
def loadMembersIDA7(struc, sid):
'''Returns list of tuples of (offset, memberName, member)'''
#mixing idc & idaapi, kinda annoying but need low-level idaapi for a
# type access, but cant dig into structs...
members = []
off = idaapi.get_struc_first_offset(struc)
while off != idc.BADADDR:
logger.debug('struc offset: 0x%x (%d)', off, off)
member = idaapi.get_member(struc, off)
if (member == 0) or (member is None):
pass #not really an error, i guess
else:
members.append( (off, idc.get_member_name(sid, off), member) )
off = idaapi.get_struc_next_offset(struc, off )
members.sort(key = lambda mem: mem[0])
return members
def byOffset(self, offset):
min, max = map(lambda sz: sz - self.baseoffset,
(idaapi.get_struc_first_offset(self.owner.ptr),
idaapi.get_struc_last_offset(self.owner.ptr)))
if (offset < min) or (offset >= max):
logging.warn(
'structure_t(%s).members.byoffset : Requested offset %x not within bounds (%x,%x). Trying anyways..'
% (self.owner.name, offset, min, max))
mem = idaapi.get_member(self.owner.ptr, offset - self.baseoffset)
if mem is None:
logging.warn(
'structure_t(%s).members.byoffset : Unable to locate member at offset %x. Trying get_best_fit_member instead.'
% (self.owner.name, offset - self.baseoffset))
mem = idaapi.get_best_fit_member(self.owner.ptr,
offset - self.baseoffset)
if mem is None:
raise IndexError, offset
index = self.index(mem)
return self[index]
def by_offset(self, offset):
'''Return the member at the specified ``offset``.'''
min, max = map(lambda sz: sz + self.baseoffset,
(idaapi.get_struc_first_offset(self.owner.ptr),
idaapi.get_struc_last_offset(self.owner.ptr)))
mptr = idaapi.get_member(self.owner.ptr, max - self.baseoffset)
msize = idaapi.get_member_size(mptr)
if (offset < min) or (offset >= max + msize):
raise LookupError(
"{:s}.instance({:s}).members.by_offset : Requested offset {:+#x} not within bounds ({:#x},{:#x})"
.format(__name__, self.owner.name, offset, min, max + msize))
mem = idaapi.get_member(self.owner.ptr, offset - self.baseoffset)
if mem is None:
raise LookupError(
"{:s}.instance({:s}).members.by_offset : Unable to find member at offset : {:+#x}"
.format(__name__, self.owner.name, offset))
index = self.index(mem)
return self[index]