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/deets-0.3.1/luau.c

FINAL RESULTS:

data/deets-0.3.1/luau.c:429:11:  [3] (buffer) getopt_long:
  Some older implementations do not protect against internal buffer overflows
  (CWE-120, CWE-20). Check implementation on installation, or limit the size
  of all string inputs.
      c = getopt_long (argc, argv, "", long_options, &option_index);
data/deets-0.3.1/luau.c:247:3:  [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 m[25];
data/deets-0.3.1/luau.c:301:3:  [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 buf[64];

ANALYSIS SUMMARY:

Hits = 3
Lines analyzed = 521 in approximately 0.05 seconds (11164 lines/second)
Physical Source Lines of Code (SLOC) = 430
Hits@level = [0]  16 [1]   0 [2]   2 [3]   1 [4]   0 [5]   0
Hits@level+ = [0+]  19 [1+]   3 [2+]   3 [3+]   1 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 44.186 [1+] 6.97674 [2+] 6.97674 [3+] 2.32558 [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.