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/xjokes-1.0/blackhole.c
Examining data/xjokes-1.0/mori1.c
Examining data/xjokes-1.0/mori2.c
Examining data/xjokes-1.0/yasiti.c

FINAL RESULTS:

data/xjokes-1.0/mori1.c:95:10:  [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.
  static char *(bit[2]) =
data/xjokes-1.0/yasiti.c:82:10:  [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.
  static char *(bit[4]) =
data/xjokes-1.0/mori1.c:153:7:  [1] (obsolete) usleep:
  This C routine is considered obsolete (as opposed to the shell command by
  the same name). The interaction of this function with SIGALRM and other
  timer functions such as sleep(), alarm(), setitimer(), and nanosleep() is
  unspecified (CWE-676). Use nanosleep(2) or setitimer(2) instead.
      usleep (1000);
data/xjokes-1.0/yasiti.c:128:7:  [1] (obsolete) usleep:
  This C routine is considered obsolete (as opposed to the shell command by
  the same name). The interaction of this function with SIGALRM and other
  timer functions such as sleep(), alarm(), setitimer(), and nanosleep() is
  unspecified (CWE-676). Use nanosleep(2) or setitimer(2) instead.
      usleep (100000);
data/xjokes-1.0/yasiti.c:135:7:  [1] (obsolete) usleep:
  This C routine is considered obsolete (as opposed to the shell command by
  the same name). The interaction of this function with SIGALRM and other
  timer functions such as sleep(), alarm(), setitimer(), and nanosleep() is
  unspecified (CWE-676). Use nanosleep(2) or setitimer(2) instead.
      usleep (100000);

ANALYSIS SUMMARY:

Hits = 5
Lines analyzed = 759 in approximately 0.02 seconds (33177 lines/second)
Physical Source Lines of Code (SLOC) = 645
Hits@level = [0]   9 [1]   3 [2]   2 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]  14 [1+]   5 [2+]   2 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 21.7054 [1+] 7.75194 [2+] 3.10078 [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.