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/ruby-raindrops-0.19.0/ext/raindrops/tcp_info.c
Examining data/ruby-raindrops-0.19.0/ext/raindrops/my_fileno.h
Examining data/ruby-raindrops-0.19.0/ext/raindrops/raindrops_atomic.h
Examining data/ruby-raindrops-0.19.0/ext/raindrops/linux_inet_diag.c
Examining data/ruby-raindrops-0.19.0/ext/raindrops/raindrops.c

FINAL RESULTS:

data/ruby-raindrops-0.19.0/ext/raindrops/linux_inet_diag.c:197:24:  [4] (format) printf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
	__attribute__((format(printf,1,2)));
data/ruby-raindrops-0.19.0/ext/raindrops/linux_inet_diag.c:204:2:  [4] (format) vfprintf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
	vfprintf(stderr, fmt, ap);
data/ruby-raindrops-0.19.0/ext/raindrops/linux_inet_diag.c:287:4:  [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(key, old_key, n + 1);
data/ruby-raindrops-0.19.0/ext/raindrops/linux_inet_diag.c:292:3:  [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(key, old_key, old_len);
data/ruby-raindrops-0.19.0/ext/raindrops/linux_inet_diag.c:556:3:  [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(&cond->addr, &inet->in6.sin6_addr,
data/ruby-raindrops-0.19.0/ext/raindrops/raindrops.c:228:2:  [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->drops, src->drops, raindrop_size * src->size);
data/ruby-raindrops-0.19.0/ext/raindrops/linux_inet_diag.c:244:23:  [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).
	hostlen = (socklen_t)strlen(host);
data/ruby-raindrops-0.19.0/ext/raindrops/linux_inet_diag.c:290:20:  [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).
		size_t old_len = strlen(old_key) + 1;

ANALYSIS SUMMARY:

Hits = 8
Lines analyzed = 1465 in approximately 0.05 seconds (27429 lines/second)
Physical Source Lines of Code (SLOC) = 1004
Hits@level = [0]   4 [1]   2 [2]   4 [3]   0 [4]   2 [5]   0
Hits@level+ = [0+]  12 [1+]   8 [2+]   6 [3+]   2 [4+]   2 [5+]   0
Hits/KSLOC@level+ = [0+] 11.9522 [1+] 7.96813 [2+] 5.9761 [3+] 1.99203 [4+] 1.99203 [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.