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/node-crc-3.8.0+ds/test/pycrc/test/main.c

FINAL RESULTS:

data/node-crc-3.8.0+ds/test/pycrc/test/main.c:272:13:  [4] (format) printf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
            printf(format, "poly", (unsigned int)cfg.poly);
data/node-crc-3.8.0+ds/test/pycrc/test/main.c:274:13:  [4] (format) printf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
            printf(format, "xor_in", cfg.xor_in);
data/node-crc-3.8.0+ds/test/pycrc/test/main.c:276:13:  [4] (format) printf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
            printf(format, "xor_out", (unsigned int)cfg.xor_out);
data/node-crc-3.8.0+ds/test/pycrc/test/main.c:277:13:  [4] (format) printf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
            printf(format, "crc_mask", (unsigned int)cfg.crc_mask);
data/node-crc-3.8.0+ds/test/pycrc/test/main.c:278:13:  [4] (format) printf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
            printf(format, "msb_mask", (unsigned int)cfg.msb_mask);
data/node-crc-3.8.0+ds/test/pycrc/test/main.c:107:13:  [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, "w:p:ni:uo:v", long_options, &option_index);
data/node-crc-3.8.0+ds/test/pycrc/test/main.c:40:17:  [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 unsigned char str[256] = "123456789";
data/node-crc-3.8.0+ds/test/pycrc/test/main.c:48:22:  [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).
        return (bool)atoi(str);
data/node-crc-3.8.0+ds/test/pycrc/test/main.c:118:30:  [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).
                cfg->width = atoi(optarg);
data/node-crc-3.8.0+ds/test/pycrc/test/main.c:237:5:  [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 format[20];
data/node-crc-3.8.0+ds/test/pycrc/test/main.c:136:37:  [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).
                memcpy(str, optarg, strlen(optarg) < sizeof(str) ? strlen(optarg) + 1 : sizeof(str));
data/node-crc-3.8.0+ds/test/pycrc/test/main.c:136:68:  [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).
                memcpy(str, optarg, strlen(optarg) < sizeof(str) ? strlen(optarg) + 1 : sizeof(str));
data/node-crc-3.8.0+ds/test/pycrc/test/main.c:246:58:  [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).
        crc = crc_pre_final = crc_update(&cfg, crc, str, strlen((char *)str));

ANALYSIS SUMMARY:

Hits = 13
Lines analyzed = 283 in approximately 0.03 seconds (9468 lines/second)
Physical Source Lines of Code (SLOC) = 227
Hits@level = [0]  12 [1]   3 [2]   4 [3]   1 [4]   5 [5]   0
Hits@level+ = [0+]  25 [1+]  13 [2+]  10 [3+]   6 [4+]   5 [5+]   0
Hits/KSLOC@level+ = [0+] 110.132 [1+] 57.2687 [2+] 44.0529 [3+] 26.4317 [4+] 22.0264 [5+]   0
Dot directories skipped = 2 (--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.