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/xmlindent-0.2.17/buffer.c
Examining data/xmlindent-0.2.17/buffer.h
Examining data/xmlindent-0.2.17/error.c
Examining data/xmlindent-0.2.17/error.h
Examining data/xmlindent-0.2.17/indent.h
Examining data/xmlindent-0.2.17/main.c
Examining data/xmlindent-0.2.17/version.h
Examining data/xmlindent-0.2.17/indent.c

FINAL RESULTS:

data/xmlindent-0.2.17/error.c:29:5:  [4] (format) vfprintf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
    vfprintf(stderr, format, args);
data/xmlindent-0.2.17/main.c:63:2:  [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(input_filename, filename);
data/xmlindent-0.2.17/main.c:68:6:  [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(backup_filename, input_filename);
data/xmlindent-0.2.17/main.c:72:6:  [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(output_filename, input_filename);
data/xmlindent-0.2.17/main.c:73:6:  [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(input_filename, backup_filename);
data/xmlindent-0.2.17/main.c:156:6:  [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(output_filename, optarg);
data/xmlindent-0.2.17/main.c:129:18:  [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.
	int arg_index = getopt(argc, argv, "hfi:l:o:n:tvw");
data/xmlindent-0.2.17/main.c:56:5:  [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 input_filename[FILENAME_MAX];
data/xmlindent-0.2.17/main.c:67:6:  [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 backup_filename[FILENAME_MAX];
data/xmlindent-0.2.17/main.c:78:10:  [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).
	input = fopen(input_filename, "r");
data/xmlindent-0.2.17/main.c:89:11:  [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).
	output = fopen(output_filename, "w");
data/xmlindent-0.2.17/main.c:138:31:  [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).
	    opts->num_indent_chars = atoi(optarg);
data/xmlindent-0.2.17/main.c:142:26:  [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).
	    opts->max_columns = atoi(optarg);
data/xmlindent-0.2.17/main.c:176:5:  [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 output_filename[FILENAME_MAX];
data/xmlindent-0.2.17/buffer.c:82:21:  [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).
    for (i = 0; i < strlen(text); i++) {
data/xmlindent-0.2.17/indent.c:442:15:  [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).
    int len = strlen(yytext);
data/xmlindent-0.2.17/main.c:69:6:  [1] (buffer) strcat:
  Does not check for buffer overflows when concatenating to destination
  [MS-banned] (CWE-120). Consider using strcat_s, strncat, strlcat, or
  snprintf (warning: strncat is easily misused). Risk is low because the
  source is a constant character.
	    strcat(backup_filename, "~");
data/xmlindent-0.2.17/main.c:77:9:  [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(input_filename) > 0) {
data/xmlindent-0.2.17/main.c:88:9:  [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(output_filename) > 0) {

ANALYSIS SUMMARY:

Hits = 19
Lines analyzed = 996 in approximately 0.05 seconds (20450 lines/second)
Physical Source Lines of Code (SLOC) = 622
Hits@level = [0]  14 [1]   5 [2]   7 [3]   1 [4]   6 [5]   0
Hits@level+ = [0+]  33 [1+]  19 [2+]  14 [3+]   7 [4+]   6 [5+]   0
Hits/KSLOC@level+ = [0+] 53.0547 [1+] 30.5466 [2+] 22.508 [3+] 11.254 [4+] 9.6463 [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.