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/rw-0.9+ds1/rw.h Examining data/rw-0.9+ds1/rw.c Examining data/rw-0.9+ds1/simplerw.c FINAL RESULTS: data/rw-0.9+ds1/simplerw.c:91:14: [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). if(!(file = fopen(filename, "r"))) ANALYSIS SUMMARY: Hits = 1 Lines analyzed = 512 in approximately 0.03 seconds (15042 lines/second) Physical Source Lines of Code (SLOC) = 322 Hits@level = [0] 14 [1] 0 [2] 1 [3] 0 [4] 0 [5] 0 Hits@level+ = [0+] 15 [1+] 1 [2+] 1 [3+] 0 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 46.5839 [1+] 3.10559 [2+] 3.10559 [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.