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/pwgen-2.08/pwgen.h
Examining data/pwgen-2.08/sha1.h
Examining data/pwgen-2.08/pw_rand.c
Examining data/pwgen-2.08/randnum.c
Examining data/pwgen-2.08/sha1.c
Examining data/pwgen-2.08/pwgen.c
Examining data/pwgen-2.08/sha1num.c
Examining data/pwgen-2.08/pw_phonemes.c

FINAL RESULTS:

data/pwgen-2.08/pw_phonemes.c:98:3:  [4] (buffer) strcpy:
  Does not check for buffer overflows when copying to destination [MS-banned]
  (CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
  easily misused).
		strcpy(buf+c, str);
data/pwgen-2.08/pw_rand.c:71:3:  [4] (buffer) strcpy:
  Does not check for buffer overflows when copying to destination [MS-banned]
  (CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
  easily misused).
		strcpy(wchars, pw_digits);
data/pwgen-2.08/pw_rand.c:75:3:  [4] (buffer) strcpy:
  Does not check for buffer overflows when copying to destination [MS-banned]
  (CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
  easily misused).
		strcpy(wchars, pw_uppers);
data/pwgen-2.08/pw_rand.c:78:2:  [4] (buffer) strcpy:
  Does not check for buffer overflows when copying to destination [MS-banned]
  (CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
  easily misused).
	strcpy(wchars, pw_lowers);
data/pwgen-2.08/pw_rand.c:81:3:  [4] (buffer) strcpy:
  Does not check for buffer overflows when copying to destination [MS-banned]
  (CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
  easily misused).
		strcpy(wchars, pw_symbols);
data/pwgen-2.08/sha1num.c:36:3:  [4] (buffer) strcpy:
  Does not check for buffer overflows when copying to destination [MS-banned]
  (CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
  easily misused).
		strcpy(sha1_seed, seed);
data/pwgen-2.08/sha1num.c:44:3:  [4] (buffer) strcpy:
  Does not check for buffer overflows when copying to destination [MS-banned]
  (CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
  easily misused).
		strcpy(sha1_seed, sha1_magic);
data/pwgen-2.08/pwgen.c:110:7:  [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, pw_options, pwgen_options, 0);
data/pwgen-2.08/pwgen.c:112:7:  [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.
		c = getopt(argc, argv, pw_options);
data/pwgen-2.08/randnum.c:22:15:  [3] (random) drand48:
  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.
extern double drand48(void);
data/pwgen-2.08/randnum.c:35:8:  [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).
		fd = open("/dev/urandom", O_RDONLY);
data/pwgen-2.08/randnum.c:37:9:  [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).
			fd = open("/dev/random", O_RDONLY | O_NONBLOCK);
data/pwgen-2.08/sha1.c:236:9:  [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( (void *) (ctx->buffer + left),
data/pwgen-2.08/sha1.c:253:9:  [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( (void *) (ctx->buffer + left),
data/pwgen-2.08/sha1.c:323:5:  [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 output[41];
data/pwgen-2.08/sha1.c:325:14:  [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.
    unsigned char buf[1000];
data/pwgen-2.08/sha1.c:326:14:  [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.
    unsigned char sha1sum[20];
data/pwgen-2.08/sha1.c:357:17:  [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( output + j * 2, "%02x", sha1sum[j] );
data/pwgen-2.08/sha1.c:373:21:  [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( argv[1], "rb" ) ) )
data/pwgen-2.08/sha1num.c:19:10:  [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.
unsigned char sha1sum[20];
data/pwgen-2.08/sha1num.c:27:18:  [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.
        unsigned char buf[1024];
data/pwgen-2.08/sha1num.c:47:14:  [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( ! ( f = fopen( sha1, "rb" ) ) ) {
data/pwgen-2.08/pw_phonemes.c:78:9:  [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).
		len = strlen(str);
data/pwgen-2.08/pw_phonemes.c:149:17:  [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).
						pw_number(strlen(pw_symbols))];
data/pwgen-2.08/pw_rand.c:34:19:  [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(r, r+1, strlen(r));
data/pwgen-2.08/pw_rand.c:55:10:  [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).
		len += strlen(pw_digits);
data/pwgen-2.08/pw_rand.c:58:10:  [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).
		len += strlen(pw_uppers);
data/pwgen-2.08/pw_rand.c:60:9:  [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).
	len += strlen(pw_lowers);
data/pwgen-2.08/pw_rand.c:62:10:  [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).
		len += strlen(pw_symbols);
data/pwgen-2.08/pw_rand.c:72:13:  [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).
		wchars += strlen(pw_digits);
data/pwgen-2.08/pw_rand.c:76:13:  [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).
		wchars += strlen(pw_uppers);
data/pwgen-2.08/pw_rand.c:79:12:  [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).
	wchars += strlen(pw_lowers);
data/pwgen-2.08/pw_rand.c:114:8:  [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).
	len = strlen(chars);
data/pwgen-2.08/randnum.c:56:8:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
			i = read(fd, cp, nbytes);
data/pwgen-2.08/sha1.c:341:30:  [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).
                             strlen( msg[i] ) );
data/pwgen-2.08/sha1num.c:31:22:  [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).
		sha1_seed = malloc(strlen(seed)+1);
data/pwgen-2.08/sha1num.c:39:22:  [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).
		sha1_seed = malloc(strlen(sha1_magic)+1);
data/pwgen-2.08/sha1num.c:71:8:  [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).
			    strlen(sha1_seed));

ANALYSIS SUMMARY:

Hits = 38
Lines analyzed = 1167 in approximately 0.05 seconds (23303 lines/second)
Physical Source Lines of Code (SLOC) = 916
Hits@level = [0]  24 [1]  16 [2]  12 [3]   3 [4]   7 [5]   0
Hits@level+ = [0+]  62 [1+]  38 [2+]  22 [3+]  10 [4+]   7 [5+]   0
Hits/KSLOC@level+ = [0+] 67.6856 [1+] 41.4847 [2+] 24.0175 [3+] 10.917 [4+] 7.64192 [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.