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/rs-20200313/rs.c
Examining data/rs-20200313/rs.h
Examining data/rs-20200313/utf8.c

FINAL RESULTS:

data/rs-20200313/rs.c:364:15:  [3] (buffer) getopt:
  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 ((ch = getopt(ac, av, "c::C::s::S::k:K:g:G:w:tTeEnyjhHmz")) != -1) {
data/rs-20200313/rs.c:130:8:  [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.
	const char delim[2] = { isep, '\0' };
data/rs-20200313/rs.c:284:4:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
			memcpy(ep, ep - nelem, sizeof(*ep));
data/rs-20200313/utf8.c:42:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
		memcpy(dst, mbs, len + 1);
data/rs-20200313/rs.c:146:24:  [1] (buffer) strlen:
  Does not handle strings that are not \0-terminated; if given one it may
  perform an over-read (it could cause a crash if unprotected) (CWE-126).
	if (flags & NOARGS && strlen(curline) < (size_t)owidth)
data/rs-20200313/utf8.c:37:8:  [1] (buffer) strlen:
  Does not handle strings that are not \0-terminated; if given one it may
  perform an over-read (it could cause a crash if unprotected) (CWE-126).
	len = strlen(mbs);

ANALYSIS SUMMARY:

Hits = 6
Lines analyzed = 640 in approximately 0.05 seconds (12253 lines/second)
Physical Source Lines of Code (SLOC) = 499
Hits@level = [0]   3 [1]   2 [2]   3 [3]   1 [4]   0 [5]   0
Hits@level+ = [0+]   9 [1+]   6 [2+]   4 [3+]   1 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 18.0361 [1+] 12.024 [2+] 8.01603 [3+] 2.00401 [4+]   0 [5+]   0
Dot directories skipped = 2 (--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.