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/libhtml5parser-java-1.4+r1.3.1/ruby-gcj/validator.cpp

FINAL RESULTS:

data/libhtml5parser-java-1.4+r1.3.1/ruby-gcj/validator.cpp:46:3:  [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[len];
data/libhtml5parser-java-1.4+r1.3.1/ruby-gcj/validator.cpp:71:3:  [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(elements(bytes), RSTRING(input)->ptr, RSTRING(input)->len);
data/libhtml5parser-java-1.4+r1.3.1/ruby-gcj/validator.cpp:91:5:  [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(elements(bytes), RSTRING(input)->ptr, RSTRING(input)->len);

ANALYSIS SUMMARY:

Hits = 3
Lines analyzed = 210 in approximately 0.13 seconds (1652 lines/second)
Physical Source Lines of Code (SLOC) = 158
Hits@level = [0]   0 [1]   0 [2]   3 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]   3 [1+]   3 [2+]   3 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 18.9873 [1+] 18.9873 [2+] 18.9873 [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.