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/bucklespring-1.4.0/buckle.h
Examining data/bucklespring-1.4.0/main.c
Examining data/bucklespring-1.4.0/rec.c
Examining data/bucklespring-1.4.0/scan-mac.c
Examining data/bucklespring-1.4.0/scan-windows.c
Examining data/bucklespring-1.4.0/scan-linux.c

FINAL RESULTS:

data/bucklespring-1.4.0/main.c:30:3:  [4] (format) fprintf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
		fprintf(stderr, _msg "\n");	\
data/bucklespring-1.4.0/main.c:201:3:  [4] (format) vsnprintf:
  If format strings can be influenced by an attacker, they can be exploited,
  and note that sprintf variations do not always \0-terminate (CWE-134). Use
  a constant for the format specification.
		vsnprintf(buf, sizeof(buf), fmt, va);
data/bucklespring-1.4.0/rec.c:37:6:  [4] (shell) popen:
  This causes a new program to execute and is difficult to use safely
  (CWE-78). try using a library call that implements the same functionality
  if available.
	f = popen("parec --rate=44100 --format=s16le --channels=1", "r");
data/bucklespring-1.4.0/rec.c:66:12:  [4] (shell) popen:
  This causes a new program to execute and is difficult to use safely
  (CWE-78). try using a library call that implements the same functionality
  if available.
				fout = popen(cmd, "w");
data/bucklespring-1.4.0/rec.c:92:7:  [4] (shell) system:
  This causes a new program to execute and is difficult to use safely
  (CWE-78). try using a library call that implements the same functionality
  if available.
						system(cmd);
data/bucklespring-1.4.0/main.c:72:14:  [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, "fhm:vd:g:lp:s:")) != EOF) {
data/bucklespring-1.4.0/main.c:81:16:  [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).
				opt_gain = atoi(optarg);
data/bucklespring-1.4.0/main.c:99:24:  [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).
				opt_stereo_width = atoi(optarg);
data/bucklespring-1.4.0/main.c:197:3:  [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[256];
data/bucklespring-1.4.0/main.c:285:3:  [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 fname[256];
data/bucklespring-1.4.0/rec.c:21:2:  [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 cmd[256];
data/bucklespring-1.4.0/rec.c:22:2:  [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 fname[256];
data/bucklespring-1.4.0/rec.c:40:10:  [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_ev = open(argv[1], O_RDONLY);
data/bucklespring-1.4.0/main.c:185:9:  [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(device);
data/bucklespring-1.4.0/rec.c:56:4:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
			read(fd_ev, &event, sizeof event);
data/bucklespring-1.4.0/rec.c:76:4:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
			read(fd_snd, &buf, sizeof buf);

ANALYSIS SUMMARY:

Hits = 16
Lines analyzed = 849 in approximately 0.08 seconds (10447 lines/second)
Physical Source Lines of Code (SLOC) = 635
Hits@level = [0]  23 [1]   3 [2]   7 [3]   1 [4]   5 [5]   0
Hits@level+ = [0+]  39 [1+]  16 [2+]  13 [3+]   6 [4+]   5 [5+]   0
Hits/KSLOC@level+ = [0+] 61.4173 [1+] 25.1969 [2+] 20.4724 [3+] 9.44882 [4+] 7.87402 [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.