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/trx-0.5/defaults.h Examining data/trx-0.5/device.c Examining data/trx-0.5/device.h Examining data/trx-0.5/notice.h Examining data/trx-0.5/rx.c Examining data/trx-0.5/sched.c Examining data/trx-0.5/sched.h Examining data/trx-0.5/tx.c FINAL RESULTS: data/trx-0.5/rx.c:202:7: [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. c = getopt(argc, argv, "c:d:h:j:m:p:r:v:"); data/trx-0.5/tx.c:191:7: [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. c = getopt(argc, argv, "b:c:d:f:h:m:p:r:v:D:"); data/trx-0.5/rx.c:122:3: [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[32768]; data/trx-0.5/rx.c:207:15: [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). channels = atoi(optarg); data/trx-0.5/rx.c:216:13: [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). jitter = atoi(optarg); data/trx-0.5/rx.c:219:13: [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). buffer = atoi(optarg); data/trx-0.5/rx.c:222:11: [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). port = atoi(optarg); data/trx-0.5/rx.c:225:11: [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). rate = atoi(optarg); data/trx-0.5/rx.c:228:14: [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). verbose = atoi(optarg); data/trx-0.5/sched.c:66:6: [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). f = fopen(pid_file, "w"); data/trx-0.5/tx.c:197:11: [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). kbps = atoi(optarg); data/trx-0.5/tx.c:200:15: [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). channels = atoi(optarg); data/trx-0.5/tx.c:206:12: [2] (integer) atol: 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). frame = atol(optarg); data/trx-0.5/tx.c:212:13: [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). buffer = atoi(optarg); data/trx-0.5/tx.c:215:11: [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). port = atoi(optarg); data/trx-0.5/tx.c:218:11: [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). rate = atoi(optarg); data/trx-0.5/tx.c:221:14: [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). verbose = atoi(optarg); ANALYSIS SUMMARY: Hits = 17 Lines analyzed = 812 in approximately 0.04 seconds (22833 lines/second) Physical Source Lines of Code (SLOC) = 558 Hits@level = [0] 38 [1] 0 [2] 15 [3] 2 [4] 0 [5] 0 Hits@level+ = [0+] 55 [1+] 17 [2+] 17 [3+] 2 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 98.5663 [1+] 30.4659 [2+] 30.4659 [3+] 3.58423 [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.