def get_all_dangerous_connections(self):
"""
Get all connections between IO and dangerous
functions. It is a necessary (but not sufficient)
condition for a problem like memory corruption
All code pieces were there already :)
"""
conn_graphs = []
dang_conns = []
dang_funcs = self.get_dangerous_functions()
if not dang_funcs:
return []
for df in dang_funcs:
for io_caller in self.input_to_function(df):
# [(u, v), ...]
dang_conns.append((io_caller, df))
# Calculate the connect graphs
for tu in dang_conns:
u, v = tu # tuple unpacking
cg = self.get_connect_graph(u, v)
sh_path = graphing.cg_shortest_path(cg, u, v)
if not sh_path:
# Error. Skipping this one
continue
sh_path_len = len(sh_path) - 1 # by definition
conn_graphs.append((u, v, sh_path_len))
return conn_graphs
