Flawfinder version 2.0.10, (C) 2001-2019 David A. Wheeler. Number of rules (primarily dangerous function names) in C/C++ ruleset: 223 Examining data/python-os-ken-1.2.0/os_ken/tests/packet_data_generator2/gen.c FINAL RESULTS: data/python-os-ken-1.2.0/os_ken/tests/packet_data_generator2/gen.c:526:5: [2] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. Risk is low because the source has a constant maximum length. sprintf(ps.desc.name, "eth0"); data/python-os-ken-1.2.0/os_ken/tests/packet_data_generator2/gen.c:652:10: [2] (misc) fopen: Check when opening files - can an attacker redirect it (via symlinks), force the opening of special file type (e.g., device files), move things around to create a race condition, control its ancestors, or change its contents? (CWE-362). fp = fopen(name, "wb"); data/python-os-ken-1.2.0/os_ken/tests/packet_data_generator2/gen.c:942:9: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. char name[255]; ANALYSIS SUMMARY: Hits = 3 Lines analyzed = 963 in approximately 0.12 seconds (8057 lines/second) Physical Source Lines of Code (SLOC) = 594 Hits@level = [0] 2 [1] 0 [2] 3 [3] 0 [4] 0 [5] 0 Hits@level+ = [0+] 5 [1+] 3 [2+] 3 [3+] 0 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 8.41751 [1+] 5.05051 [2+] 5.05051 [3+] 0 [4+] 0 [5+] 0 Dot directories skipped = 1 (--followdotdir overrides) Minimum risk level = 1 Not every hit is necessarily a security vulnerability. There may be other security vulnerabilities; review your code! See 'Secure Programming HOWTO' (https://dwheeler.com/secure-programs) for more information.