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/r-cran-rjson-0.2.20/src/register.c
Examining data/r-cran-rjson-0.2.20/src/funcs.h
Examining data/r-cran-rjson-0.2.20/src/parser.c
Examining data/r-cran-rjson-0.2.20/src/dump.cpp

FINAL RESULTS:

data/r-cran-rjson-0.2.20/src/parser.c:37:2:  [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( buf, 256, format, args );
data/r-cran-rjson-0.2.20/src/parser.c:34:2:  [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 ];
data/r-cran-rjson-0.2.20/src/parser.c:126:2:  [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 unicode_buf[ 5 ]; /* to hold 4 digit hex (to prevent scanning a 5th digit accidentally */
data/r-cran-rjson-0.2.20/src/parser.c:332:5:  [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( buf + buf_i, s + copy_start, bytes_to_copy );
data/r-cran-rjson-0.2.20/src/parser.c:405:5:  [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( buf + buf_i, s + copy_start, bytes_to_copy );
data/r-cran-rjson-0.2.20/src/parser.c:705:2:  [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[ MAX_NUMBER_BUF ];
data/r-cran-rjson-0.2.20/src/parser.c:127:2:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
	strncpy( unicode_buf, s + i + 1, 5 );
data/r-cran-rjson-0.2.20/src/parser.c:242:6:  [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).
	if( strlen( s ) < 4 )
data/r-cran-rjson-0.2.20/src/parser.c:257:6:  [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).
	if( strlen( s ) < 4 )
data/r-cran-rjson-0.2.20/src/parser.c:272:6:  [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).
	if( strlen( s ) < 5 )
data/r-cran-rjson-0.2.20/src/parser.c:761:2:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
	strncpy( buf, start, len );

ANALYSIS SUMMARY:

Hits = 11
Lines analyzed = 1021 in approximately 0.06 seconds (17385 lines/second)
Physical Source Lines of Code (SLOC) = 841
Hits@level = [0]   1 [1]   5 [2]   5 [3]   0 [4]   1 [5]   0
Hits@level+ = [0+]  12 [1+]  11 [2+]   6 [3+]   1 [4+]   1 [5+]   0
Hits/KSLOC@level+ = [0+] 14.2687 [1+] 13.0797 [2+] 7.13436 [3+] 1.18906 [4+] 1.18906 [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.