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/python-greenlet-0.4.17/greenlet.c
Examining data/python-greenlet-0.4.17/greenlet.h
Examining data/python-greenlet-0.4.17/platform/switch_aarch64_gcc.h
Examining data/python-greenlet-0.4.17/platform/switch_alpha_unix.h
Examining data/python-greenlet-0.4.17/platform/switch_amd64_unix.h
Examining data/python-greenlet-0.4.17/platform/switch_arm32_gcc.h
Examining data/python-greenlet-0.4.17/platform/switch_arm32_ios.h
Examining data/python-greenlet-0.4.17/platform/switch_csky_gcc.h
Examining data/python-greenlet-0.4.17/platform/switch_m68k_gcc.h
Examining data/python-greenlet-0.4.17/platform/switch_mips_unix.h
Examining data/python-greenlet-0.4.17/platform/switch_ppc64_linux.h
Examining data/python-greenlet-0.4.17/platform/switch_ppc_aix.h
Examining data/python-greenlet-0.4.17/platform/switch_ppc_linux.h
Examining data/python-greenlet-0.4.17/platform/switch_ppc_macosx.h
Examining data/python-greenlet-0.4.17/platform/switch_ppc_unix.h
Examining data/python-greenlet-0.4.17/platform/switch_riscv_unix.h
Examining data/python-greenlet-0.4.17/platform/switch_s390_unix.h
Examining data/python-greenlet-0.4.17/platform/switch_sparc_sun_gcc.h
Examining data/python-greenlet-0.4.17/platform/switch_x32_unix.h
Examining data/python-greenlet-0.4.17/platform/switch_x64_msvc.h
Examining data/python-greenlet-0.4.17/platform/switch_x86_msvc.h
Examining data/python-greenlet-0.4.17/platform/switch_x86_unix.h
Examining data/python-greenlet-0.4.17/slp_platformselect.h
Examining data/python-greenlet-0.4.17/tests/_test_extension.c
Examining data/python-greenlet-0.4.17/tests/_test_extension_cpp.cpp

FINAL RESULTS:

data/python-greenlet-0.4.17/greenlet.c:411:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
		memcpy(c+sz1, g->stack_start+sz1, sz2-sz1);
data/python-greenlet-0.4.17/greenlet.c:429:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
		memcpy(g->stack_start, g->stack_copy, g->stack_saved);

ANALYSIS SUMMARY:

Hits = 2
Lines analyzed = 3801 in approximately 0.12 seconds (31105 lines/second)
Physical Source Lines of Code (SLOC) = 2515
Hits@level = [0]   0 [1]   0 [2]   2 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]   2 [1+]   2 [2+]   2 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 0.795229 [1+] 0.795229 [2+] 0.795229 [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.