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/randtype-1.13/randtype.c
Examining data/randtype-1.13/randtype.h

FINAL RESULTS:

data/randtype-1.13/randtype.c:412:8:  [5] (buffer) strncat:
  Easily used incorrectly (e.g., incorrectly computing the correct maximum
  size to add) [MS-banned] (CWE-120). Consider strcat_s, strlcat, snprintf,
  or automatically resizing strings. Risk is high; the length parameter
  appears to be a constant, instead of computing the number of characters
  left.
			    strncat(s, src, LINE_MAX - 1);
data/randtype-1.13/randtype.c:418:8:  [5] (buffer) strncat:
  Easily used incorrectly (e.g., incorrectly computing the correct maximum
  size to add) [MS-banned] (CWE-120). Consider strcat_s, strlcat, snprintf,
  or automatically resizing strings. Risk is high; the length parameter
  appears to be a constant, instead of computing the number of characters
  left.
			    strncat(s, src, LINE_MAX - 1);
data/randtype-1.13/randtype.c:165:26:  [3] (random) random:
  This function is not sufficiently random for security-related functions
  such as key and nonce creation (CWE-327). Use a more secure technique for
  acquiring random values.
    i = (1 + (int) (ms * random() / (RAND_MAX + 1.0))) * mult;
data/randtype-1.13/randtype.c:190:32:  [3] (random) random:
  This function is not sufficiently random for security-related functions
  such as key and nonce creation (CWE-327). Use a more secure technique for
  acquiring random values.
        i = (1 + (int) (94.0 * random() / (RAND_MAX + 1.0))) + 32;
data/randtype-1.13/randtype.c:207:30:  [3] (random) random:
  This function is not sufficiently random for security-related functions
  such as key and nonce creation (CWE-327). Use a more secure technique for
  acquiring random values.
    return((1 + (int) (max * random() / (RAND_MAX + 1.0))));
data/randtype-1.13/randtype.c:535:19:  [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 ((opt = getopt(argc, argv, "m:vhr:q:t:n:w:d:c:kl")) != EOF) {
data/randtype-1.13/randtype.c:642:5:  [3] (random) srandom:
  This function is not sufficiently random for security-related functions
  such as key and nonce creation (CWE-327). Use a more secure technique for
  acquiring random values.
    srandom(getpid());
data/randtype-1.13/randtype.c:644:5:  [3] (random) srand:
  This function is not sufficiently random for security-related functions
  such as key and nonce creation (CWE-327). Use a more secure technique for
  acquiring random values.
    srand(getpid());
data/randtype-1.13/randtype.c:279:14:  [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).
	    *mult = atoi(s);
data/randtype-1.13/randtype.c:310:9:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
        memcpy (p0, repl, repl_len);          /* Insert replacement.*/
data/randtype-1.13/randtype.c:318:5:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
    memcpy (p0, repl, repl_len);               /* Final replacement.*/
data/randtype-1.13/randtype.c:365:12:  [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 ((fp = fopen(filename, "r")) == NULL) {
data/randtype-1.13/randtype.c:411:8:  [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(src, "%c", tmp[i]);
data/randtype-1.13/randtype.c:417:8:  [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(src, "%c", i);
data/randtype-1.13/randtype.c:523:5:  [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 progname[NAME_MAX], tmp[NAME_MAX];
data/randtype-1.13/randtype.c:549:17:  [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).
	    mistakes = atoi(tmp);
data/randtype-1.13/randtype.c:592:13:  [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).
	    quit = atoi(tmp);
data/randtype-1.13/randtype.h:50:1:  [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 nowait[137], wait[137];
data/randtype-1.13/randtype.h:51:1:  [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 dumpstr[64];
data/randtype-1.13/randtype.c:224:18:  [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 (randint(strlen(str)) == n) {
data/randtype-1.13/randtype.c:271:18:  [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).
	for (i = 0; i < strlen(s); i++) {
data/randtype-1.13/randtype.c:292:23:  [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).
    size_t find_len = strlen(find);
data/randtype-1.13/randtype.c:293:23:  [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).
    size_t repl_len = strlen(repl);
data/randtype-1.13/randtype.c:303:33:  [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).
        memmove (p0 + dist, p0, strlen(str) - (p0 - str) + 1);
data/randtype-1.13/randtype.c:387:3:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
		strncpy(s, x, LINE_MAX - 1);
data/randtype-1.13/randtype.c:401:24:  [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).
		    for (i = 0; i < (strlen(s) - strlen(tmp)); i++)
data/randtype-1.13/randtype.c:401:36:  [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).
		    for (i = 0; i < (strlen(s) - strlen(tmp)); i++)
data/randtype-1.13/randtype.c:410:20:  [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).
		        for (i = strlen(dumpstr); i < strlen(tmp); i++) {
data/randtype-1.13/randtype.c:410:41:  [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).
		        for (i = strlen(dumpstr); i < strlen(tmp); i++) {
data/randtype-1.13/randtype.c:430:8:  [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).
			i = strlen(tmp) + strlen(dumpstr);
data/randtype-1.13/randtype.c:430:22:  [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).
			i = strlen(tmp) + strlen(dumpstr);
data/randtype-1.13/randtype.c:432:8:  [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).
			i = strlen(tmp);
data/randtype-1.13/randtype.c:434:23:  [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).
		    for (i = i; i < strlen(p); i++)
data/randtype-1.13/randtype.c:481:6:  [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).
	i = strlen(find) + 1;
data/randtype-1.13/randtype.c:493:6:  [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).
	i = strlen(repl) + 1;
data/randtype-1.13/randtype.c:544:22:  [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).
	    for (i = 0; i < strlen(tmp); i++) {
data/randtype-1.13/randtype.c:564:52:  [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 ((optarg[0] != ',' && optarg[0] != '.') || strlen(optarg) < 2)
data/randtype-1.13/randtype.c:587:22:  [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).
	    for (i = 0; i < strlen(tmp); i++) {

ANALYSIS SUMMARY:

Hits = 38
Lines analyzed = 721 in approximately 0.03 seconds (25219 lines/second)
Physical Source Lines of Code (SLOC) = 546
Hits@level = [0]  30 [1]  19 [2]  11 [3]   6 [4]   0 [5]   2
Hits@level+ = [0+]  68 [1+]  38 [2+]  19 [3+]   8 [4+]   2 [5+]   2
Hits/KSLOC@level+ = [0+] 124.542 [1+] 69.5971 [2+] 34.7985 [3+] 14.652 [4+] 3.663 [5+] 3.663
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.