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/cputool-0.0.8/cputool.c
Examining data/cputool-0.0.8/cputool.h

FINAL RESULTS:

data/cputool-0.0.8/cputool.c:166:2:  [4] (format) vfprintf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
	vfprintf(stderr, format, argptr);
data/cputool-0.0.8/cputool.c:210:6:  [4] (buffer) fscanf:
  The scanf() family's %s operation, without a limit specification, permits
  buffer overflows (CWE-120, CWE-20). Specify a limit to %s, or use a
  different input function. If the scanf format is influenceable by an
  attacker, it's exploitable.
	i = fscanf(fd,CPUTOOL_STAT_FORMAT,
data/cputool-0.0.8/cputool.c:721:4:  [4] (shell) execvp:
  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.
			execvp(argv[0], argv);
data/cputool-0.0.8/cputool.c:615:7:  [3] (buffer) getopt_long:
  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_long(argc,argv,"p:P:c:l:vVh",long_options,&option_index);
data/cputool-0.0.8/cputool.c:178:9:  [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.
	static char buf[1024];
data/cputool-0.0.8/cputool.c:184:12:  [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).
	if ((fd = open("/proc/loadavg", O_RDONLY)) > 0) {
data/cputool-0.0.8/cputool.c:256:11:  [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.
			static char statfile[32];
data/cputool-0.0.8/cputool.c:260:4:  [2] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf. Risk is low because the source has a constant maximum length.
			sprintf(statfile, "/proc/%d/stat", p->pid);
data/cputool-0.0.8/cputool.c:262:18:  [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 (!(p->fd = fopen(statfile,"r"))) {
data/cputool-0.0.8/cputool.c:323:9:  [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).
		pid = atoi(entry->d_name);
data/cputool-0.0.8/cputool.c:344:11:  [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.
			static char statfile[32];
data/cputool-0.0.8/cputool.c:348:4:  [2] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf. Risk is low because the source has a constant maximum length.
			sprintf(statfile, "/proc/%d/stat", pid);
data/cputool-0.0.8/cputool.c:350:15:  [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 (!(fd = fopen(statfile,"r"))) {
data/cputool-0.0.8/cputool.c:629:11:  [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).
				pid = atoi(optarg);
data/cputool-0.0.8/cputool.c:637:11:  [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).
				pid = atoi(optarg);
data/cputool-0.0.8/cputool.c:641:16:  [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).
				cpuLimit = atoi(optarg);
data/cputool-0.0.8/cputool.h:50:5:  [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 comm[256]; // %s
data/cputool-0.0.8/cputool.c:185:9:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
		len = read(fd, buf, sizeof(buf) - 1);

ANALYSIS SUMMARY:

Hits = 18
Lines analyzed = 1092 in approximately 0.08 seconds (13781 lines/second)
Physical Source Lines of Code (SLOC) = 676
Hits@level = [0]  23 [1]   1 [2]  13 [3]   1 [4]   3 [5]   0
Hits@level+ = [0+]  41 [1+]  18 [2+]  17 [3+]   4 [4+]   3 [5+]   0
Hits/KSLOC@level+ = [0+] 60.6509 [1+] 26.6272 [2+] 25.1479 [3+] 5.91716 [4+] 4.43787 [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.