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/cpulimit-2.6/cpulimit.c
Examining data/cpulimit-2.6/test/busy.c

FINAL RESULTS:

data/cpulimit-2.6/cpulimit.c:286:14:  [5] (race) readlink:
  This accepts filename arguments; if an attacker can move those files or
  change the link content, a race condition results. Also, it does not
  terminate with ASCII NUL. (CWE-362, CWE-20). Reconsider approach.
				int size=readlink(exelink,exepath,sizeof(exepath));
data/cpulimit-2.6/cpulimit.c:778:18:  [4] (shell) execl:
  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.
                 execl(program_data->this_program, program_data->this_program,
data/cpulimit-2.6/cpulimit.c:1053:15:  [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[last_known_argument],
data/cpulimit-2.6/cpulimit.c:1308:33:  [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[last_known_argument],
data/cpulimit-2.6/cpulimit.c:932:17:  [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.
		next_option = getopt_long (argc, argv, short_options,long_options, NULL);
data/cpulimit-2.6/cpulimit.c:118:7:  [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.
const char *SIGNAL_NAME[MAX_SIGNAL] = { "SIGHUP", "SIGINT", "SIGQUIT", 
data/cpulimit-2.6/cpulimit.c:194:13:  [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).
			if (pid==atoi(dit->d_name)) {
data/cpulimit-2.6/cpulimit.c:264:2:  [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 exelink[20];
data/cpulimit-2.6/cpulimit.c:265:2:  [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 exepath[PATH_MAX+1];
data/cpulimit-2.6/cpulimit.c:283:8:  [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(dit->d_name);
data/cpulimit-2.6/cpulimit.c:285:5:  [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(exelink,"/proc/%d/exe",pid);
data/cpulimit-2.6/cpulimit.c:418:9:  [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 stat[20];
data/cpulimit-2.6/cpulimit.c:419:9:  [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 buffer[1024];
data/cpulimit-2.6/cpulimit.c:421:2:  [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(stat,"/proc/%d/stat",pid);
data/cpulimit-2.6/cpulimit.c:422:10:  [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).
	FILE *f=fopen(stat,"r");
data/cpulimit-2.6/cpulimit.c:434:14:  [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).
	  int utime=atoi(p+1);
data/cpulimit-2.6/cpulimit.c:437:14:  [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).
	  int ktime=atoi(p+1);
data/cpulimit-2.6/cpulimit.c:664:5:  [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 filename[PROC_FILENAME];
data/cpulimit-2.6/cpulimit.c:667:5:  [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 line[256];
data/cpulimit-2.6/cpulimit.c:679:23:  [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).
        status_file = fopen(filename, "r");
data/cpulimit-2.6/cpulimit.c:736:14:  [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 filename[PROC_FILENAME];
data/cpulimit-2.6/cpulimit.c:770:18:  [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 limit_amount[16];
data/cpulimit-2.6/cpulimit.c:771:18:  [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 process_identifier[16];
data/cpulimit-2.6/cpulimit.c:872:23:  [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).
       signal_value = atoi(my_signal);
data/cpulimit-2.6/cpulimit.c:944:9:  [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(optarg);
data/cpulimit-2.6/cpulimit.c:963:15:  [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).
				perclimit=atoi(optarg);
data/cpulimit-2.6/cpulimit.c:968:40:  [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).
                                NCPU = atoi(optarg);
data/cpulimit-2.6/test/busy.c:16:31:  [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).
	if (argc == 2) num_threads = atoi(argv[1]);
data/cpulimit-2.6/cpulimit.c:289:71:  [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).
					if (process[0]=='/' && strncmp(exepath,process,size)==0 && size==strlen(process)) {
data/cpulimit-2.6/cpulimit.c:295:32:  [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).
						if (strncmp(exepath+size-strlen(process),process,strlen(process))==0) {
data/cpulimit-2.6/cpulimit.c:295:56:  [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).
						if (strncmp(exepath+size-strlen(process),process,strlen(process))==0) {
data/cpulimit-2.6/test/busy.c:29:2:  [1] (buffer) getchar:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
	getchar();

ANALYSIS SUMMARY:

Hits = 32
Lines analyzed = 1371 in approximately 0.05 seconds (25192 lines/second)
Physical Source Lines of Code (SLOC) = 991
Hits@level = [0]  82 [1]   4 [2]  23 [3]   1 [4]   3 [5]   1
Hits@level+ = [0+] 114 [1+]  32 [2+]  28 [3+]   5 [4+]   4 [5+]   1
Hits/KSLOC@level+ = [0+] 115.035 [1+] 32.2906 [2+] 28.2543 [3+] 5.04541 [4+] 4.03633 [5+] 1.00908
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.