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/pybigwig-0.3.17/pyBigWig.c
Examining data/pybigwig-0.3.17/pyBigWig.h

FINAL RESULTS:

data/pybigwig-0.3.17/pyBigWig.c:184:9:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
        strncpy(o, p, stride);
data/pybigwig-0.3.17/pyBigWig.c:1841:11:  [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(str);

ANALYSIS SUMMARY:

Hits = 2
Lines analyzed = 2385 in approximately 0.09 seconds (26247 lines/second)
Physical Source Lines of Code (SLOC) = 1800
Hits@level = [0]   2 [1]   2 [2]   0 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]   4 [1+]   2 [2+]   0 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 2.22222 [1+] 1.11111 [2+]   0 [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.