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/meterbridge-0.9.2/src/main.c Examining data/meterbridge-0.9.2/src/vu_meters.c Examining data/meterbridge-0.9.2/src/ppm_meters.c Examining data/meterbridge-0.9.2/src/jf_meters.c Examining data/meterbridge-0.9.2/src/scope.c Examining data/meterbridge-0.9.2/src/envelopes.c Examining data/meterbridge-0.9.2/src/find_image.c Examining data/meterbridge-0.9.2/src/config.h Examining data/meterbridge-0.9.2/src/dpm_meters.h Examining data/meterbridge-0.9.2/src/envelopes.h Examining data/meterbridge-0.9.2/src/find_image.h Examining data/meterbridge-0.9.2/src/jf_meters.h Examining data/meterbridge-0.9.2/src/ppm_meters.h Examining data/meterbridge-0.9.2/src/scope.h Examining data/meterbridge-0.9.2/src/vu_meters.h Examining data/meterbridge-0.9.2/src/main.h Examining data/meterbridge-0.9.2/src/dpm_meters.c Examining data/meterbridge-0.9.2/src/linedraw.h Examining data/meterbridge-0.9.2/src/linedraw.c FINAL RESULTS: data/meterbridge-0.9.2/src/main.c:67:16: [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 ((opt = getopt(argc, argv, "t:r:c:n:h")) != -1) { data/meterbridge-0.9.2/src/find_image.c:10:2: [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 tmp[256]; data/meterbridge-0.9.2/src/main.c:45:1: [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 client_name[256]; data/meterbridge-0.9.2/src/main.c:63:2: [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 window_name[256]; data/meterbridge-0.9.2/src/main.c:94:15: [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). columns = atoi(optarg); data/meterbridge-0.9.2/src/main.c:294:2: [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 in_name[256], out_name[256]; data/meterbridge-0.9.2/src/main.c:391:2: [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 cmdpath[256]; data/meterbridge-0.9.2/src/main.c:397:14: [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). if (!(cmd = fopen(cmdpath, "w"))) { data/meterbridge-0.9.2/src/main.c:212:3: [1] (buffer) strncpy: Easily used incorrectly; doesn't always \0-terminate or check for invalid pointers [MS-banned] (CWE-120). strncpy(client_name, us_client_name, 31); ANALYSIS SUMMARY: Hits = 9 Lines analyzed = 1262 in approximately 0.06 seconds (21642 lines/second) Physical Source Lines of Code (SLOC) = 993 Hits@level = [0] 40 [1] 1 [2] 7 [3] 1 [4] 0 [5] 0 Hits@level+ = [0+] 49 [1+] 9 [2+] 8 [3+] 1 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 49.3454 [1+] 9.06344 [2+] 8.05639 [3+] 1.00705 [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.