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/dov4l-0.9+repack/dov4l.c FINAL RESULTS: data/dov4l-0.9+repack/dov4l.c:347:20: [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(argc, argv, "p:d:qi:t:m:f:b:u:c:n:w:hs:")) != -1) data/dov4l-0.9+repack/dov4l.c:352:10: [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). bri = atoi(optarg); data/dov4l-0.9+repack/dov4l.c:355:10: [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). hue = atoi(optarg); data/dov4l-0.9+repack/dov4l.c:358:10: [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). col = atoi(optarg); data/dov4l-0.9+repack/dov4l.c:361:10: [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). con = atoi(optarg); data/dov4l-0.9+repack/dov4l.c:364:10: [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). whi = atoi(optarg); data/dov4l-0.9+repack/dov4l.c:376:15: [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). ichannel = atoi(optarg); data/dov4l-0.9+repack/dov4l.c:407:12: [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). tuner = atoi(optarg); data/dov4l-0.9+repack/dov4l.c:410:16: [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). frequency = atoi(optarg); data/dov4l-0.9+repack/dov4l.c:422:13: [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). width = atoi(optarg); data/dov4l-0.9+repack/dov4l.c:423:14: [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). height = atoi(dummy + 1); data/dov4l-0.9+repack/dov4l.c:428:7: [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_RDWR); ANALYSIS SUMMARY: Hits = 12 Lines analyzed = 533 in approximately 0.06 seconds (9242 lines/second) Physical Source Lines of Code (SLOC) = 470 Hits@level = [0] 118 [1] 0 [2] 11 [3] 1 [4] 0 [5] 0 Hits@level+ = [0+] 130 [1+] 12 [2+] 12 [3+] 1 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 276.596 [1+] 25.5319 [2+] 25.5319 [3+] 2.12766 [4+] 0 [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.