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/lua-readline-2.8/C-readline.c FINAL RESULTS: data/lua-readline-2.8/C-readline.c:51:2: [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 buffer[L_ctermid]; data/lua-readline-2.8/C-readline.c:55:17: [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). tty_stream = fopen(devtty, "a+"); data/lua-readline-2.8/C-readline.c:172:2: [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 buffer[L_ctermid]; data/lua-readline-2.8/C-readline.c:177:26: [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). callback_tty_stream = fopen(devtty, "a+"); data/lua-readline-2.8/C-readline.c:260:9: [1] (buffer) strncpy: Easily used incorrectly; doesn't always \0-terminate or check for invalid pointers [MS-banned] (CWE-120). strncpy(completions[i], tmp, length); ANALYSIS SUMMARY: Hits = 5 Lines analyzed = 358 in approximately 0.02 seconds (18384 lines/second) Physical Source Lines of Code (SLOC) = 253 Hits@level = [0] 0 [1] 1 [2] 4 [3] 0 [4] 0 [5] 0 Hits@level+ = [0+] 5 [1+] 5 [2+] 4 [3+] 0 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 19.7628 [1+] 19.7628 [2+] 15.8103 [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.