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/rolldice-1.16/main.c
Examining data/rolldice-1.16/rolldice.c
Examining data/rolldice-1.16/rolldice.h
Examining data/rolldice-1.16/version.h

FINAL RESULTS:

data/rolldice-1.16/main.c:188:16:  [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.
    while((c = getopt_long(argc, argv, "hvrusi", long_opts, NULL)) != -1) {
data/rolldice-1.16/rolldice.c:30:16:  [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((ran_dev = fopen("/dev/random", "r")) == NULL) {
data/rolldice-1.16/rolldice.c:35:24:  [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).
    else if((ran_dev = fopen("/dev/urandom", "r")) == NULL) {

ANALYSIS SUMMARY:

Hits = 3
Lines analyzed = 545 in approximately 0.02 seconds (22702 lines/second)
Physical Source Lines of Code (SLOC) = 376
Hits@level = [0]  30 [1]   0 [2]   2 [3]   1 [4]   0 [5]   0
Hits@level+ = [0+]  33 [1+]   3 [2+]   3 [3+]   1 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 87.766 [1+] 7.97872 [2+] 7.97872 [3+] 2.65957 [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.