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/tktray-1.3.9/tktray.c

FINAL RESULTS:

data/tktray-1.3.9/tktray.c:385:5:  [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 buf[256];
data/tktray-1.3.9/tktray.c:387:5:  [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(buf,"_NET_SYSTEM_TRAY_S%d",Tk_ScreenNumber(tkwin));
data/tktray-1.3.9/tktray.c:453:2:  [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 numeric[256];
data/tktray-1.3.9/tktray.c:454:2:  [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(numeric,"%ld",*(long*)retProp);
data/tktray-1.3.9/tktray.c:927:18:  [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).
    int length = strlen(utf8msg);
data/tktray-1.3.9/tktray.c:960:2:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
	strncpy(ev.xclient.data.b,utf8msg,length<20?length:20);

ANALYSIS SUMMARY:

Hits = 6
Lines analyzed = 1267 in approximately 0.05 seconds (27294 lines/second)
Physical Source Lines of Code (SLOC) = 1028
Hits@level = [0]   0 [1]   2 [2]   4 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]   6 [1+]   6 [2+]   4 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 5.83658 [1+] 5.83658 [2+] 3.89105 [3+]   0 [4+]   0 [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.