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/mpgrafic-0.3.19/src/c_gsl_wrap.c
Examining data/mpgrafic-0.3.19/src/parallel_io.c
Examining data/mpgrafic-0.3.19/src/rfftw3d_mpi_create_plan_c_wrap.c

FINAL RESULTS:

data/mpgrafic-0.3.19/src/parallel_io.c:66:8:  [2] (misc) open:
  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).
  fd = open(filename,O_RDWR|O_CREAT,S_IRUSR|S_IWUSR);
data/mpgrafic-0.3.19/src/parallel_io.c:87:8:  [2] (misc) open:
  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).
  fd = open(filename,O_RDONLY);
data/mpgrafic-0.3.19/src/parallel_io.c:111:3:  [1] (buffer) strncat:
  Easily used incorrectly (e.g., incorrectly computing the correct maximum
  size to add) [MS-banned] (CWE-120). Consider strcat_s, strlcat, snprintf,
  or automatically resizing strings.
  strncat(filename_null_terminated, filename, (size_t)(*fnamelen));
data/mpgrafic-0.3.19/src/parallel_io.c:135:3:  [1] (buffer) strncat:
  Easily used incorrectly (e.g., incorrectly computing the correct maximum
  size to add) [MS-banned] (CWE-120). Consider strcat_s, strlcat, snprintf,
  or automatically resizing strings.
  strncat(filename_null_terminated, filename, (size_t)(*fnamelen));

ANALYSIS SUMMARY:

Hits = 4
Lines analyzed = 389 in approximately 0.02 seconds (15823 lines/second)
Physical Source Lines of Code (SLOC) = 165
Hits@level = [0]   9 [1]   2 [2]   2 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]  13 [1+]   4 [2+]   2 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 78.7879 [1+] 24.2424 [2+] 12.1212 [3+]   0 [4+]   0 [5+]   0
Symlinks skipped = 1 (--allowlink overrides but see doc for security issue)
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.