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Allow Rizzo overwrite symbol name #49

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Allow Rizzo overwrite symbol name #49

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26 changes: 14 additions & 12 deletions plugins/rizzo/rizzo.py
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Original file line number Diff line number Diff line change
Expand Up @@ -414,17 +414,16 @@ def match(self, extsigs):
def rename(self, ea, name):
# Don't rely on the name in curfunc, it could have already been renamed
curname = ida_shims.get_name(ea)
# Don't rename if the name is a special identifier, or if the ea has
# already been named
if curname.startswith('sub_') and \
name.split('_')[0] not in \
['sub', 'loc', 'unk', 'dword', 'word', 'byte']:
# Don't rename if the name already exists in the IDB
if ida_shims.get_name_ea_simple(name) == idc.BADADDR:
if ida_shims.set_name(ea, name):
ida_shims.set_func_flags(
ea, (ida_shims.get_func_flags(ea) | idc.FUNC_LIB))
return 1

if ida_shims.get_name_ea_simple(name) == idc.BADADDR:
if ida_shims.set_name(ea, name):
ida_shims.set_func_flags(
ea, (ida_shims.get_func_flags(ea) | idc.FUNC_LIB))
if not curname.startswith('sub_') or \
name.split('_')[0] in \
['sub', 'loc', 'unk', 'dword', 'word', 'byte']:
print("Rename symbol %s to %s" % (curname, name))
return 1
return 0

def apply(self, extsigs):
Expand Down Expand Up @@ -472,11 +471,14 @@ def apply(self, extsigs):
rename[nblock.functions[n]] = [ea]

# Rename the identified functions
renamed = set()
for (name, candidates) in rename.items():
if candidates:
winner = \
collections.Counter(candidates).most_common(1)[0][0]
count += self.rename(winner, name)
if winner not in renamed:
count += self.rename(winner, name)
renamed.add(winner)

end = time.time()
print("Renamed %d functions in %.2f seconds." % (count, (end-start)))
Expand Down