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/dtmf2num-0.1.1/mywav.h
Examining data/dtmf2num-0.1.1/dsp.c
Examining data/dtmf2num-0.1.1/dtmf2num.c
Examining data/dtmf2num-0.1.1/resample2.c

FINAL RESULTS:

data/dtmf2num-0.1.1/dsp.c:150:2:  [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 digits[MAX_DTMF_DIGITS + 1];
data/dtmf2num-0.1.1/dtmf2num.c:135:39:  [2] (integer) atoi:
  Unless checked, the resulting number can exceed the expected range
  (CWE-190). If source untrusted, check both minimum and maximum, even if the
  input had no minus sign (large numbers can roll over into negative number;
  consider saving to an unsigned value if that is intended).
                fmt.dwSamplesPerSec = atoi(argv[i]);
data/dtmf2num-0.1.1/dtmf2num.c:137:39:  [2] (integer) atoi:
  Unless checked, the resulting number can exceed the expected range
  (CWE-190). If source untrusted, check both minimum and maximum, even if the
  input had no minus sign (large numbers can roll over into negative number;
  consider saving to an unsigned value if that is intended).
                fmt.wChannels       = atoi(argv[i]);
data/dtmf2num-0.1.1/dtmf2num.c:139:39:  [2] (integer) atoi:
  Unless checked, the resulting number can exceed the expected range
  (CWE-190). If source untrusted, check both minimum and maximum, even if the
  input had no minus sign (large numbers can roll over into negative number;
  consider saving to an unsigned value if that is intended).
                fmt.wBitsPerSample  = atoi(argv[i]);
data/dtmf2num-0.1.1/dtmf2num.c:177:14:  [2] (misc) fopen:
  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).
        fd = fopen(fname, "rb");
data/dtmf2num-0.1.1/dtmf2num.c:226:14:  [2] (misc) fopen:
  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).
        fd = fopen(outfile, "wb");
data/dtmf2num-0.1.1/mywav.h:221:5:  [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(chunk.id, "RIFF", 4);
data/dtmf2num-0.1.1/mywav.h:233:5:  [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(chunk.id, "fmt ", 4);
data/dtmf2num-0.1.1/mywav.h:239:5:  [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(chunk.id, "data", 4);
data/dtmf2num-0.1.1/resample2.c:212:5:  [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(&c->filter_bank[c->filter_length*phase_count+1], c->filter_bank, (c->filter_length-1)*sizeof(FELEM));
data/dtmf2num-0.1.1/dtmf2num.c:127:61:  [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(((argv[i][0] != '-') && (argv[i][0] != '/')) || (strlen(argv[i]) != 2)) {

ANALYSIS SUMMARY:

Hits = 11
Lines analyzed = 1539 in approximately 0.06 seconds (25041 lines/second)
Physical Source Lines of Code (SLOC) = 1055
Hits@level = [0]  30 [1]   1 [2]  10 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]  41 [1+]  11 [2+]  10 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 38.8626 [1+] 10.4265 [2+] 9.47867 [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.