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/makexvpics-1.0.1/ppmtoxvmini.c

FINAL RESULTS:

data/makexvpics-1.0.1/ppmtoxvmini.c:13:10:  [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.
unsigned char input[80*60*3],output[80*60];
data/makexvpics-1.0.1/ppmtoxvmini.c:60:1:  [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[128];
data/makexvpics-1.0.1/ppmtoxvmini.c:78:10:  [2] (misc) fopen:
  Check when opening files - can an attacker redirect it (via symlinks),
  force the opening of special file type (e.g., device files), move things
  around to create a race condition, control its ancestors, or change its
  contents? (CWE-362).
  if((in=fopen(argv[1],"rb"))==NULL)

ANALYSIS SUMMARY:

Hits = 3
Lines analyzed = 132 in approximately 0.01 seconds (10210 lines/second)
Physical Source Lines of Code (SLOC) = 99
Hits@level = [0]  25 [1]   0 [2]   3 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]  28 [1+]   3 [2+]   3 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 282.828 [1+] 30.303 [2+] 30.303 [3+]   0 [4+]   0 [5+]   0
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.