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/gperiodic-3.0.3/gperiodic.c
Examining data/gperiodic-3.0.3/gperiodic.h
Examining data/gperiodic-3.0.3/table_data.h

FINAL RESULTS:

data/gperiodic-3.0.3/table_data.h:83:5:  [4] (buffer) strcpy:
  Does not check for buffer overflows when copying to destination [MS-banned]
  (CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
  easily misused).
    strcpy(buffer, entry->info[MELTING]);
data/gperiodic-3.0.3/gperiodic.c:497:22:  [3] (buffer) getopt:
  Some older implementations do not protect against internal buffer overflows
  (CWE-120, CWE-20). Check implementation on installation, or limit the size
  of all string inputs.
    while( -1 != (ch=getopt(argc,argv,optstr)) ) {
data/gperiodic-3.0.3/gperiodic.c:68:5:  [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 fillout[HEADERTEXTLEN];
data/gperiodic-3.0.3/gperiodic.c:107:3:  [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 *buff, tmpbuf[128];
data/gperiodic-3.0.3/gperiodic.c:528:25:  [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).
	    int atomicNumber = atoi(argv[optind]);
data/gperiodic-3.0.3/gperiodic.h:65:3:  [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 *info[MAX_INFO_NR];
data/gperiodic-3.0.3/table_data.h:80:3:  [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[20];

ANALYSIS SUMMARY:

Hits = 7
Lines analyzed = 942 in approximately 0.12 seconds (8111 lines/second)
Physical Source Lines of Code (SLOC) = 693
Hits@level = [0]  16 [1]   0 [2]   5 [3]   1 [4]   1 [5]   0
Hits@level+ = [0+]  23 [1+]   7 [2+]   7 [3+]   2 [4+]   1 [5+]   0
Hits/KSLOC@level+ = [0+] 33.189 [1+] 10.101 [2+] 10.101 [3+] 2.886 [4+] 1.443 [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.