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/wiipdf-1.4/wiipdf.c

FINAL RESULTS:

data/wiipdf-1.4/wiipdf.c:55:6:  [4] (shell) system:
  This causes a new program to execute and is difficult to use safely
  (CWE-78). try using a library call that implements the same functionality
  if available.
	if (system(buffer) != 0) {
data/wiipdf-1.4/wiipdf.c:67:6:  [4] (shell) system:
  This causes a new program to execute and is difficult to use safely
  (CWE-78). try using a library call that implements the same functionality
  if available.
	if (system(buffer) != 0) {
data/wiipdf-1.4/wiipdf.c:79:2:  [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(125000);

ANALYSIS SUMMARY:

Hits = 3
Lines analyzed = 159 in approximately 0.02 seconds (10521 lines/second)
Physical Source Lines of Code (SLOC) = 93
Hits@level = [0]  14 [1]   1 [2]   0 [3]   0 [4]   2 [5]   0
Hits@level+ = [0+]  17 [1+]   3 [2+]   2 [3+]   2 [4+]   2 [5+]   0
Hits/KSLOC@level+ = [0+] 182.796 [1+] 32.2581 [2+] 21.5054 [3+] 21.5054 [4+] 21.5054 [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.