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/iptotal-0.3.3/iptotal.c

FINAL RESULTS:

data/iptotal-0.3.3/iptotal.c:475:27:  [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(-1 != (optchar=getopt(argc,argv,"a:Ab:c:Cd:Ff:hl:L:m:M:o:Pr:t:v")))
data/iptotal-0.3.3/iptotal.c:196:2:  [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 iptst[50],*ipa;
data/iptotal-0.3.3/iptotal.c:399:2:  [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(iptst,"%d.%d.%d.%d",
data/iptotal-0.3.3/iptotal.c:492:14:  [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).
			debug_m = atoi(optarg);
data/iptotal-0.3.3/iptotal.c:509:13:  [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).
			mask_m = atoi(optarg);
data/iptotal-0.3.3/iptotal.c:521:15:  [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).
			rcycle_m = atoi(optarg);
data/iptotal-0.3.3/iptotal.c:543:2:  [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   ebuf[PCAP_ERRBUF_SIZE];
data/iptotal-0.3.3/iptotal.c:658:2:  [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 buffer[512];
data/iptotal-0.3.3/iptotal.c:662:8:  [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).
	fin = fopen (filename, "r");
data/iptotal-0.3.3/iptotal.c:674:13:  [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).
		debug_m = atoi(val);
data/iptotal-0.3.3/iptotal.c:689:14:  [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).
		rcycle_m = atoi(val);
data/iptotal-0.3.3/iptotal.c:696:12:  [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).
		mask_m = atoi(val);
data/iptotal-0.3.3/iptotal.c:754:14:  [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).
	str = str + strlen(str) - 1;
data/iptotal-0.3.3/iptotal.c:785:9:  [1] (buffer) equal:
  Function does not check the second iterator for over-read conditions
  (CWE-126). This function is often discouraged by most C++ coding standards
  in favor of its safer alternatives provided since C++14. Consider using a
  form of this function that checks the second iterator before potentially
  overflowing it.
	while (equal && *a) {
data/iptotal-0.3.3/iptotal.c:792:6:  [1] (buffer) equal:
  Function does not check the second iterator for over-read conditions
  (CWE-126). This function is often discouraged by most C++ coding standards
  in favor of its safer alternatives provided since C++14. Consider using a
  form of this function that checks the second iterator before potentially
  overflowing it.
	if (equal) return 0;

ANALYSIS SUMMARY:

Hits = 15
Lines analyzed = 820 in approximately 0.10 seconds (8540 lines/second)
Physical Source Lines of Code (SLOC) = 533
Hits@level = [0]  71 [1]   3 [2]  11 [3]   1 [4]   0 [5]   0
Hits@level+ = [0+]  86 [1+]  15 [2+]  12 [3+]   1 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 161.351 [1+] 28.1426 [2+] 22.5141 [3+] 1.87617 [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.