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/libperlbal-xs-httpheaders-perl-0.20/headers.h
Examining data/libperlbal-xs-httpheaders-perl-0.20/headers.cpp
Examining data/libperlbal-xs-httpheaders-perl-0.20/ppport.h

FINAL RESULTS:

data/libperlbal-xs-httpheaders-perl-0.20/headers.cpp:91:15:  [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).
    int ret = atoi(ptr) * 1000 + atoi(ptr+i+1);
data/libperlbal-xs-httpheaders-perl-0.20/headers.cpp:91:34:  [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).
    int ret = atoi(ptr) * 1000 + atoi(ptr+i+1);
data/libperlbal-xs-httpheaders-perl-0.20/headers.cpp:402:28:  [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 wlen = len ? len : strlen(which);
data/libperlbal-xs-httpheaders-perl-0.20/headers.cpp:435:24:  [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 vlen = value ? strlen(value) : 0;
data/libperlbal-xs-httpheaders-perl-0.20/headers.cpp:481:20:  [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 wlen = strlen(which);
data/libperlbal-xs-httpheaders-perl-0.20/headers.cpp:563:24:  [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 urilen = uri ? strlen(uri) : 0;
data/libperlbal-xs-httpheaders-perl-0.20/ppport.h:724:22:  [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).
        STRLEN len = strlen(radix);

ANALYSIS SUMMARY:

Hits = 7
Lines analyzed = 1865 in approximately 0.14 seconds (13191 lines/second)
Physical Source Lines of Code (SLOC) = 1226
Hits@level = [0]   0 [1]   5 [2]   2 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]   7 [1+]   7 [2+]   2 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 5.70962 [1+] 5.70962 [2+] 1.63132 [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.