Merge pull request #584 from pudding0803/lab7

[LAB7] 312552057

lab7/sol.py

@@ -0,0 +1,23 @@
+import angr, sys
+
+
+def success_condition(state):
+        return b"Login successful" in state.posix.dumps(sys.stdout.fileno())
+
+
+def fail_condition(state):
+        return b"Login failed" in state.posix.dumps(sys.stdout.fileno())
+
+
+def main():
+    proj = angr.Project('./login')
+    init_state = proj.factory.entry_state()
+    simulation = proj.factory.simgr(init_state)
+    simulation.explore(find=success_condition, avoid=fail_condition)
+    solution = simulation.found[0]
+    print(solution.posix.dumps(sys.stdin.fileno()))
+
+
+if __name__ == '__main__':
+    main()
+