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/yder-1.4.12/examples/log_callback.c
Examining data/yder-1.4.12/examples/log_combined.c
Examining data/yder-1.4.12/examples/log_console.c
Examining data/yder-1.4.12/examples/log_file.c
Examining data/yder-1.4.12/examples/log_journald.c
Examining data/yder-1.4.12/examples/log_syslog.c
Examining data/yder-1.4.12/include/yder.h
Examining data/yder-1.4.12/src/yder.c
Examining data/yder-1.4.12/test/yder_test.c

FINAL RESULTS:

data/yder-1.4.12/src/yder.c:370:13:  [4] (format) vsnprintf:
  If format strings can be influenced by an attacker, they can be exploited,
  and note that sprintf variations do not always \0-terminate (CWE-134). Use
  a constant for the format specification.
  out_len = vsnprintf(NULL, 0, message, args);
data/yder-1.4.12/src/yder.c:373:5:  [4] (format) vsnprintf:
  If format strings can be influenced by an attacker, they can be exploited,
  and note that sprintf variations do not always \0-terminate (CWE-134). Use
  a constant for the format specification.
    vsnprintf(out, (out_len + 1), message, args_cpy);
data/yder-1.4.12/test/yder_test.c:17:3:  [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(app_name, log_app_name);
data/yder-1.4.12/test/yder_test.c:18:3:  [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(cls, log_message);
data/yder-1.4.12/examples/log_callback.c:21:3:  [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 *level_name, date_stamp[20];
data/yder-1.4.12/src/yder.c:260:25:  [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 ((cur_log_file = fopen(cur_log_file_path, "a+")) == NULL) {
data/yder-1.4.12/test/yder_test.c:12:1:  [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 message[1024];
data/yder-1.4.12/test/yder_test.c:13:1:  [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 app_name[128];

ANALYSIS SUMMARY:

Hits = 8
Lines analyzed = 1129 in approximately 0.07 seconds (17077 lines/second)
Physical Source Lines of Code (SLOC) = 755
Hits@level = [0]   8 [1]   0 [2]   4 [3]   0 [4]   4 [5]   0
Hits@level+ = [0+]  16 [1+]   8 [2+]   8 [3+]   4 [4+]   4 [5+]   0
Hits/KSLOC@level+ = [0+] 21.1921 [1+] 10.596 [2+] 10.596 [3+] 5.29801 [4+] 5.29801 [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.