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/sassc-3.6.1/sassc_version.h
Examining data/sassc-3.6.1/win/posix/getopt.c
Examining data/sassc-3.6.1/win/posix/getopt.h
Examining data/sassc-3.6.1/sassc.c

FINAL RESULTS:

data/sassc-3.6.1/sassc.c:122:9:  [4] (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).
        strcat(source_string, buffer);
data/sassc-3.6.1/sassc.c:209:9:  [4] (format) printf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
        printf(i == 0 ? ".\n" : ",");
data/sassc-3.6.1/sassc.c:365:13:  [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(source_map_file, outfile);
data/sassc-3.6.1/sassc.c:366:13:  [4] (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).
            strcat(source_map_file, extension);
data/sassc-3.6.1/win/posix/getopt.c:121:11:  [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.
    (void)vfprintf(stderr,fmt,ap);
data/sassc-3.6.1/sassc.c:254:43:  [3] (buffer) getenv:
  Environment variables are untrustable input if they can be set by an
  attacker. They can have any content and length, and the same variable can
  be set more than once (CWE-807, CWE-20). Check environment variables
  carefully before using them.
    sass_option_set_include_path(options, getenv("SASS_PATH"));
data/sassc-3.6.1/sassc.c:275:17:  [3] (buffer) getopt_long:
  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 ((c = getopt_long(argc, argv, "vhslm::Map:t:I:P:", long_options, &long_index)) != -1) {
data/sassc-3.6.1/win/posix/getopt.c:354:22:  [3] (buffer) getenv:
  Environment variables are untrustable input if they can be set by an
  attacker. They can have any content and length, and the same variable can
  be set more than once (CWE-807, CWE-20). Check environment variables
  carefully before using them.
		posixly_correct = (getenv("POSIXLY_CORRECT") != NULL);
data/sassc-3.6.1/win/posix/getopt.c:531:1:  [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.
getopt(int nargc, char * const *nargv, const char *options)
data/sassc-3.6.1/win/posix/getopt.c:551:1:  [3] (buffer) getopt_long:
  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.
getopt_long(int nargc, char * const *nargv, const char *options,
data/sassc-3.6.1/win/posix/getopt.h:29:12:  [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.
extern int getopt(int nargc, char * const *nargv, const char *options);
data/sassc-3.6.1/win/posix/getopt.h:77:12:  [3] (buffer) getopt_long:
  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.
extern int getopt_long(int nargc, char * const *nargv, const char *options,
data/sassc-3.6.1/sassc.c:66:24:  [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).
            FILE* fp = fopen(outfile, "wb");
data/sassc-3.6.1/sassc.c:94:5:  [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 buffer[BUFSIZE];
data/sassc-3.6.1/sassc.c:326:48:  [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).
            sass_option_set_precision(options, atoi(optarg)); // TODO: make this more robust
data/sassc-3.6.1/win/posix/getopt.c:182:6:  [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 **) nargv)[pos] = nargv[cstart];
data/sassc-3.6.1/win/posix/getopt.c:184:6:  [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 **)nargv)[cstart] = swap;
data/sassc-3.6.1/sassc.c:111:17:  [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).
        size += strlen(buffer);
data/sassc-3.6.1/sassc.c:364:45:  [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).
            char* source_map_file  = calloc(strlen(outfile) + strlen(extension) + 1, sizeof(char));
data/sassc-3.6.1/sassc.c:364:63:  [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).
            char* source_map_file  = calloc(strlen(outfile) + strlen(extension) + 1, sizeof(char));
data/sassc-3.6.1/win/posix/getopt.c:218:22:  [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).
		current_argv_len = strlen(current_argv);
data/sassc-3.6.1/win/posix/getopt.c:226:7:  [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(long_options[i].name) == current_argv_len) {

ANALYSIS SUMMARY:

Hits = 22
Lines analyzed = 1059 in approximately 0.04 seconds (25921 lines/second)
Physical Source Lines of Code (SLOC) = 770
Hits@level = [0]  36 [1]   5 [2]   5 [3]   7 [4]   5 [5]   0
Hits@level+ = [0+]  58 [1+]  22 [2+]  17 [3+]  12 [4+]   5 [5+]   0
Hits/KSLOC@level+ = [0+] 75.3247 [1+] 28.5714 [2+] 22.0779 [3+] 15.5844 [4+] 6.49351 [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.