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/fatresize-1.1.0/fatresize.c

FINAL RESULTS:

data/fatresize-1.1.0/fatresize.c:98:3:  [4] (format) vprintf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
  vprintf(fmt, ap);
data/fatresize-1.1.0/fatresize.c:203:5:  [4] (buffer) strcpy:
  Does not check for buffer overflows when copying to destination [MS-banned]
  (CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
  easily misused).
    strcpy(devname, dev);
data/fatresize-1.1.0/fatresize.c:490:17:  [3] (buffer) getopt_long:
  Some older implementations do not protect against internal buffer overflows
  (CWE-120, CWE-20). Check implementation on installation, or limit the size
  of all string inputs.
  while ((opt = getopt_long(argc, argv, sopt, lopt, NULL)) != -1) {
data/fatresize-1.1.0/fatresize.c:159:10:  [2] (integer) atoi:
  Unless checked, the resulting number can exceed the expected range
  (CWE-190). If source untrusted, check both minimum and maximum, even if the
  input had no minus sign (large numbers can roll over into negative number;
  consider saving to an unsigned value if that is intended).
  pnum = atoi(p + 1);
data/fatresize-1.1.0/fatresize.c:501:21:  [2] (integer) atoi:
  Unless checked, the resulting number can exceed the expected range
  (CWE-190). If source untrusted, check both minimum and maximum, even if the
  input had no minus sign (large numbers can roll over into negative number;
  consider saving to an unsigned value if that is intended).
        opts.pnum = atoi(optarg);
data/fatresize-1.1.0/fatresize.c:588:5:  [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(&part_geom, &part->geom, sizeof(PedGeometry));
data/fatresize-1.1.0/fatresize.c:119:7:  [1] (buffer) strlen:
  Does not handle strings that are not \0-terminated; if given one it may
  perform an over-read (it could cause a crash if unprotected) (CWE-126).
  if (strlen(suffix) == 2 && suffix[1] == 'i') {
data/fatresize-1.1.0/fatresize.c:121:14:  [1] (buffer) strlen:
  Does not handle strings that are not \0-terminated; if given one it may
  perform an over-read (it could cause a crash if unprotected) (CWE-126).
  } else if (strlen(suffix) > 1) {
data/fatresize-1.1.0/fatresize.c:154:13:  [1] (buffer) strlen:
  Does not handle strings that are not \0-terminated; if given one it may
  perform an over-read (it could cause a crash if unprotected) (CWE-126).
  p = dev + strlen(dev) - 1;
data/fatresize-1.1.0/fatresize.c:186:9:  [1] (buffer) strlen:
  Does not handle strings that are not \0-terminated; if given one it may
  perform an over-read (it could cause a crash if unprotected) (CWE-126).
  len = strlen(dev);
data/fatresize-1.1.0/fatresize.c:193:3:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
  strncpy(devname, dev, p - dev + 1);

ANALYSIS SUMMARY:

Hits = 11
Lines analyzed = 721 in approximately 0.41 seconds (1777 lines/second)
Physical Source Lines of Code (SLOC) = 564
Hits@level = [0]  18 [1]   5 [2]   3 [3]   1 [4]   2 [5]   0
Hits@level+ = [0+]  29 [1+]  11 [2+]   6 [3+]   3 [4+]   2 [5+]   0
Hits/KSLOC@level+ = [0+] 51.4184 [1+] 19.5035 [2+] 10.6383 [3+] 5.31915 [4+] 3.5461 [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.