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/xcowsay-1.5.1/src/Cowsay_glue.h
Examining data/xcowsay-1.5.1/src/bubblegen.c
Examining data/xcowsay-1.5.1/src/settings.c
Examining data/xcowsay-1.5.1/src/xcowsay.c
Examining data/xcowsay-1.5.1/src/i18n.h
Examining data/xcowsay-1.5.1/src/display_cow.h
Examining data/xcowsay-1.5.1/src/config_file.h
Examining data/xcowsay-1.5.1/src/config_file.c
Examining data/xcowsay-1.5.1/src/floating_shape.h
Examining data/xcowsay-1.5.1/src/xcowsayd.c
Examining data/xcowsay-1.5.1/src/display_cow.c
Examining data/xcowsay-1.5.1/src/floating_shape.c
Examining data/xcowsay-1.5.1/src/settings.h
Examining data/xcowsay-1.5.1/src/xcowsayd.h

FINAL RESULTS:

data/xcowsay-1.5.1/src/display_cow.c:97:7:  [4] (format) fprintf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
      fprintf(stderr, i18n("Failed to load cow image: %s\n"), cow_path);
data/xcowsay-1.5.1/src/display_cow.h:27:35:  [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.
#define debug_msg(...) if (debug) printf(__VA_ARGS__);
data/xcowsay-1.5.1/src/xcowsay.c:177:7:  [4] (format) fprintf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
      fprintf(stderr, i18n("Error: %s is not a valid integer\n"), optarg);
data/xcowsay-1.5.1/src/xcowsay.c:188:7:  [4] (format) fprintf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
      fprintf(stderr, failmsg, optarg);
data/xcowsay-1.5.1/src/xcowsay.c:195:7:  [4] (format) fprintf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
      fprintf(stderr, failmsg, optarg);
data/xcowsay-1.5.1/src/xcowsay.c:201:7:  [4] (format) fprintf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
      fprintf(stderr, failmsg, optarg);
data/xcowsay-1.5.1/src/xcowsay.c:221:7:  [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(p, argv[i]);
data/xcowsay-1.5.1/src/xcowsay.c:354:14:  [4] (race) access:
  This usually indicates a security flaw. If an attacker can change anything
  along the path between the call to access() and the file's actual use
  (e.g., by moving files), the attacker can exploit the race condition
  (CWE-362/CWE-367!). Set up the correct permissions (e.g., using setuid())
  and try to open the file directly.
         if (access(abs_path, R_OK) != 0) {
data/xcowsay-1.5.1/src/xcowsayd.c:81:4:  [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(req->message, mess);
data/xcowsay-1.5.1/src/config_file.c:177:23:  [3] (buffer) getenv:
  Environment variables are untrustable input if they can be set by an
  attacker. They can have any content and length, and the same variable can
  be set more than once (CWE-807, CWE-20). Check environment variables
  carefully before using them.
   const char *home = getenv("HOME");
data/xcowsay-1.5.1/src/config_file.c:182:34:  [3] (buffer) getenv:
  Environment variables are untrustable input if they can be set by an
  attacker. They can have any content and length, and the same variable can
  be set more than once (CWE-807, CWE-20). Check environment variables
  carefully before using them.
   const char *xdg_config_home = getenv("XDG_CONFIG_HOME");
data/xcowsay-1.5.1/src/display_cow.c:257:14:  [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.
      pick = random() % n_monitors;
data/xcowsay-1.5.1/src/display_cow.c:302:15:  [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.
      cow_x = random() % area_w;
data/xcowsay-1.5.1/src/display_cow.c:308:15:  [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.
      cow_y = random() % area_h;
data/xcowsay-1.5.1/src/xcowsay.c:262:16:  [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.
   while ((c = getopt_long(argc, argv, spec, long_options, &index)) != -1) {
data/xcowsay-1.5.1/src/xcowsay.c:336:4:  [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(tv.tv_sec ^ tv.tv_usec ^ getpid());
data/xcowsay-1.5.1/src/xcowsay.c:348:27:  [3] (buffer) realpath:
  This function does not protect against buffer overflows, and some
  implementations can overflow internally (CWE-120/CWE-785!). Ensure that the
  destination buffer is at least of size MAXPATHLEN, andto protect against
  implementation problems, the input argument should also be checked to
  ensure it is no larger than MAXPATHLEN.
         char *abs_path = realpath(dream_file, NULL);
data/xcowsay-1.5.1/src/config_file.c:146:12:  [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).
   *ival = atoi(s);
data/xcowsay-1.5.1/src/config_file.c:215:16:  [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).
   FILE *frc = fopen(fname, "r");
data/xcowsay-1.5.1/src/xcowsayd.c:246:12:  [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/null", O_RDWR);  // fd = stdin
data/xcowsay-1.5.1/src/config_file.c:81:19:  [1] (buffer) fgetc:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
      char next = fgetc(f);
data/xcowsay-1.5.1/src/display_cow.c:191:17:  [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).
   size_t len = strlen(text_copy);
data/xcowsay-1.5.1/src/xcowsay.c:214:14:  [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).
      len += strlen(argv[i]) + (i < argc - 1 ? 1 : 0);
data/xcowsay-1.5.1/src/xcowsay.c:222:12:  [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).
      p += strlen(argv[i]);
data/xcowsay-1.5.1/src/xcowsayd.c:78:26:  [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).
   req->message = malloc(strlen(mess)+1);

ANALYSIS SUMMARY:

Hits = 25
Lines analyzed = 2361 in approximately 0.07 seconds (33958 lines/second)
Physical Source Lines of Code (SLOC) = 1748
Hits@level = [0]  17 [1]   5 [2]   3 [3]   8 [4]   9 [5]   0
Hits@level+ = [0+]  42 [1+]  25 [2+]  20 [3+]  17 [4+]   9 [5+]   0
Hits/KSLOC@level+ = [0+] 24.0275 [1+] 14.3021 [2+] 11.4416 [3+] 9.7254 [4+] 5.14874 [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.