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/falselogin-0.3/falselogin.c

FINAL RESULTS:

data/falselogin-0.3/falselogin.c:45:2:  [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 s_mail[MAIL_LEN];				// length of mail number
data/falselogin-0.3/falselogin.c:46:2:  [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 *temp, host_n[MAXLEN_HOSTNAME], 
data/falselogin-0.3/falselogin.c:74:11:  [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 ((f = fopen (CONFIG_FILE, "rt")) == NULL) {
data/falselogin-0.3/falselogin.c:109:15:  [2] (integer) atol:
  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).
				else if ( atol(temp+5) > 0 ) 
data/falselogin-0.3/falselogin.c:110:13:  [2] (integer) atol:
  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).
					wait = atol(temp+5);
data/falselogin-0.3/falselogin.c:147:14:  [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 ((g = fopen ("/etc/debian_version", "rt")) != NULL) {
data/falselogin-0.3/falselogin.c:175:14:  [2] (integer) atol:
  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).
			else if ( atol(argv[2]) > 0 ) 
data/falselogin-0.3/falselogin.c:176:12:  [2] (integer) atol:
  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).
				wait = atol(argv[2]);
data/falselogin-0.3/falselogin.c:198:16:  [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.
int countMail (char userName[MAXLEN_USERNAME]) {
data/falselogin-0.3/falselogin.c:206:12:  [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 ( (f = fopen (temp, "rt")) != NULL) {
data/falselogin-0.3/falselogin.c:149:30:  [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 (*deb_ver && deb_ver[strlen(deb_ver)-1] == '\n')
data/falselogin-0.3/falselogin.c:150:15:  [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).
						deb_ver[strlen(deb_ver)-1] = 0;
data/falselogin-0.3/falselogin.c:192:10:  [1] (buffer) getchar:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
		while (getchar() != '\n');
data/falselogin-0.3/falselogin.c:209:40:  [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 (!strncasecmp (temp, MESSAGE_ID, strlen (MESSAGE_ID)))

ANALYSIS SUMMARY:

Hits = 14
Lines analyzed = 216 in approximately 0.03 seconds (7844 lines/second)
Physical Source Lines of Code (SLOC) = 125
Hits@level = [0]   5 [1]   4 [2]  10 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]  19 [1+]  14 [2+]  10 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 152 [1+] 112 [2+]  80 [3+]   0 [4+]   0 [5+]   0
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.