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/setcd-1.5/setcd.c

FINAL RESULTS:

data/setcd-1.5/setcd.c:194:15:  [3] (buffer) getopt:
  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((c=getopt(ac, av, "c:d:e:f:hil:o:rst:x:"))!=EOF) {
data/setcd-1.5/setcd.c:103:6:  [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[ISOFS_BLOCK_SIZE];
data/setcd-1.5/setcd.c:196:25:  [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).
	  case 'c': auto_close=atoi(optarg); break;
data/setcd-1.5/setcd.c:197:19:  [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).
	  case 'd': disc=atoi(optarg); break;
data/setcd-1.5/setcd.c:198:21:  [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).
	  case 'f': fflags=atoi(optarg); break;
data/setcd-1.5/setcd.c:199:35:  [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).
	  case 'e': auto_close=auto_open=atoi(optarg); break;
data/setcd-1.5/setcd.c:201:19:  [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).
	  case 'l': lock=atoi(optarg); break;
data/setcd-1.5/setcd.c:202:24:  [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).
	  case 'o': auto_open=atoi(optarg); break;
data/setcd-1.5/setcd.c:205:24:  [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).
	  case 't': typecheck=atoi(optarg); break;
data/setcd-1.5/setcd.c:206:20:  [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).
	  case 'x': speed=atoi(optarg); break;
data/setcd-1.5/setcd.c:220:9:  [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(device, O_RDONLY | O_NONBLOCK);
data/setcd-1.5/setcd.c:256:18:  [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 buffer[28];
data/setcd-1.5/setcd.c:107:4:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
	  read(fd, buf, ISOFS_BLOCK_SIZE);

ANALYSIS SUMMARY:

Hits = 13
Lines analyzed = 324 in approximately 0.02 seconds (16087 lines/second)
Physical Source Lines of Code (SLOC) = 277
Hits@level = [0]  26 [1]   1 [2]  11 [3]   1 [4]   0 [5]   0
Hits@level+ = [0+]  39 [1+]  13 [2+]  12 [3+]   1 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 140.794 [1+] 46.9314 [2+] 43.3213 [3+] 3.61011 [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.