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/termbox-1.1.2+dfsg/src/demo/output.c
Examining data/termbox-1.1.2+dfsg/src/demo/keyboard.c
Examining data/termbox-1.1.2+dfsg/src/demo/paint.c
Examining data/termbox-1.1.2+dfsg/src/termbox.c
Examining data/termbox-1.1.2+dfsg/src/termbox.h
Examining data/termbox-1.1.2+dfsg/src/utf8.c

FINAL RESULTS:

data/termbox-1.1.2+dfsg/src/demo/keyboard.c:359:2:  [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, sizeof(buf), fmt, vl);
data/termbox-1.1.2+dfsg/src/demo/keyboard.c:525:3:  [4] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf.
		sprintf(inputmode_str, "%s | TB_INPUT_MOUSE", inputmode_str);
data/termbox-1.1.2+dfsg/src/demo/keyboard.c:356:2:  [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[4096];
data/termbox-1.1.2+dfsg/src/demo/keyboard.c:517:2:  [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 inputmode_str[64];
data/termbox-1.1.2+dfsg/src/demo/keyboard.c:520:3:  [2] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf. Risk is low because the source has a constant maximum length.
		sprintf(inputmode_str, "TB_INPUT_ESC");
data/termbox-1.1.2+dfsg/src/demo/keyboard.c:522:3:  [2] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf. Risk is low because the source has a constant maximum length.
		sprintf(inputmode_str, "TB_INPUT_ALT");
data/termbox-1.1.2+dfsg/src/demo/keyboard.c:603:2:  [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[7];
data/termbox-1.1.2+dfsg/src/demo/paint.c:85:2:  [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(tb_cell_buffer(), backbuf, sizeof(struct tb_cell)*bbw*bbh);
data/termbox-1.1.2+dfsg/src/termbox.c:134:20:  [2] (misc) open:
  Check when opening files - can an attacker redirect it (via symlinks),
  force the opening of special file type (e.g., device files), move things
  around to create a race condition, control its ancestors, or change its
  contents? (CWE-362).
	return tb_init_fd(open(name, O_RDWR));
data/termbox-1.1.2+dfsg/src/termbox.c:194:4:  [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(front, back, sizeof(struct tb_cell));
data/termbox-1.1.2+dfsg/src/termbox.c:275:3:  [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(dst, src, size);
data/termbox-1.1.2+dfsg/src/termbox.c:375:2:  [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[32];
data/termbox-1.1.2+dfsg/src/termbox.c:384:2:  [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[32];
data/termbox-1.1.2+dfsg/src/termbox.c:453:3:  [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(cdst, csrc, sizeof(struct tb_cell) * minw);
data/termbox-1.1.2+dfsg/src/termbox.c:552:2:  [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[7];
data/termbox-1.1.2+dfsg/src/utf8.c:3:23:  [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.
static const unsigned char utf8_length[256] = {
data/termbox-1.1.2+dfsg/src/utf8.c:14:23:  [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.
static const unsigned char utf8_mask[6] = {
data/termbox-1.1.2+dfsg/src/demo/output.c:52:31:  [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).
	print_combinations_table(2 + strlen(chars), 1, col2, 1);
data/termbox-1.1.2+dfsg/src/termbox.c:603:8:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
			r = read(inout, input_buffer.buf + prevlen + read_n, n - read_n);
data/termbox-1.1.2+dfsg/src/termbox.c:672:4:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
			read(winch_fds[0], &zzz, sizeof(int));

ANALYSIS SUMMARY:

Hits = 20
Lines analyzed = 2087 in approximately 0.09 seconds (22646 lines/second)
Physical Source Lines of Code (SLOC) = 1717
Hits@level = [0]   4 [1]   3 [2]  15 [3]   0 [4]   2 [5]   0
Hits@level+ = [0+]  24 [1+]  20 [2+]  17 [3+]   2 [4+]   2 [5+]   0
Hits/KSLOC@level+ = [0+] 13.9779 [1+] 11.6482 [2+] 9.90099 [3+] 1.16482 [4+] 1.16482 [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.