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/lua-sec-0.9/src/compat.h
Examining data/lua-sec-0.9/src/config.c
Examining data/lua-sec-0.9/src/context.c
Examining data/lua-sec-0.9/src/context.h
Examining data/lua-sec-0.9/src/ec.c
Examining data/lua-sec-0.9/src/ec.h
Examining data/lua-sec-0.9/src/luasocket/buffer.c
Examining data/lua-sec-0.9/src/luasocket/buffer.h
Examining data/lua-sec-0.9/src/luasocket/io.c
Examining data/lua-sec-0.9/src/luasocket/io.h
Examining data/lua-sec-0.9/src/luasocket/socket.h
Examining data/lua-sec-0.9/src/luasocket/timeout.c
Examining data/lua-sec-0.9/src/luasocket/timeout.h
Examining data/lua-sec-0.9/src/luasocket/usocket.c
Examining data/lua-sec-0.9/src/luasocket/usocket.h
Examining data/lua-sec-0.9/src/luasocket/wsocket.c
Examining data/lua-sec-0.9/src/luasocket/wsocket.h
Examining data/lua-sec-0.9/src/options.c
Examining data/lua-sec-0.9/src/options.h
Examining data/lua-sec-0.9/src/ssl.c
Examining data/lua-sec-0.9/src/ssl.h
Examining data/lua-sec-0.9/src/x509.c
Examining data/lua-sec-0.9/src/x509.h
Examining data/lua-sec-0.9/lua-sec.h

FINAL RESULTS:

data/lua-sec-0.9/src/context.c:684:3:  [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(ctx->alpn, (void*)*out, *outlen);
data/lua-sec-0.9/src/luasocket/buffer.h:33:5:  [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 data[BUF_SIZE];    /* storage space for buffer data */
data/lua-sec-0.9/src/ssl.c:701:3:  [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 buf[256] = {0};
data/lua-sec-0.9/src/x509.c:96:5:  [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((void*)&addr4.sin_addr, src, sizeof(struct in_addr));
data/lua-sec-0.9/src/x509.c:103:5:  [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((void*)&addr6.sin6_addr, src, sizeof(struct in6_addr));
data/lua-sec-0.9/src/x509.c:137:3:  [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 buffer[256];
data/lua-sec-0.9/src/x509.c:190:3:  [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 dst[INET6_ADDRSTRLEN];
data/lua-sec-0.9/src/x509.c:453:12:  [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.
  unsigned char buffer[EVP_MAX_MD_SIZE];
data/lua-sec-0.9/src/x509.c:454:3:  [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 hex_buffer[EVP_MAX_MD_SIZE*2];
data/lua-sec-0.9/src/context.c:158:5:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
    strncpy(buf, lua_tostring(L, -1), size);
data/lua-sec-0.9/src/context.c:161:17:  [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).
    return (int)strlen(buf);
data/lua-sec-0.9/src/luasocket/usocket.c:334:29:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
        long taken = (long) read(*ps, data, count);

ANALYSIS SUMMARY:

Hits = 12
Lines analyzed = 4932 in approximately 0.14 seconds (35900 lines/second)
Physical Source Lines of Code (SLOC) = 3526
Hits@level = [0]  10 [1]   3 [2]   9 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]  22 [1+]  12 [2+]   9 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 6.23936 [1+] 3.40329 [2+] 2.55247 [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.