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/libdatrie-0.2.12/tests/test_nonalpha.c
Examining data/libdatrie-0.2.12/tests/test_null_trie.c
Examining data/libdatrie-0.2.12/tests/test_walk.c
Examining data/libdatrie-0.2.12/tests/test_term_state.c
Examining data/libdatrie-0.2.12/tests/utils.h
Examining data/libdatrie-0.2.12/tests/test_iterator.c
Examining data/libdatrie-0.2.12/tests/test_store-retrieve.c
Examining data/libdatrie-0.2.12/tests/test_byte_alpha.c
Examining data/libdatrie-0.2.12/tests/test_file.c
Examining data/libdatrie-0.2.12/tests/utils.c
Examining data/libdatrie-0.2.12/tools/trietool.c
Examining data/libdatrie-0.2.12/datrie/fileutils.h
Examining data/libdatrie-0.2.12/datrie/triedefs.h
Examining data/libdatrie-0.2.12/datrie/fileutils.c
Examining data/libdatrie-0.2.12/datrie/darray.h
Examining data/libdatrie-0.2.12/datrie/alpha-map-private.h
Examining data/libdatrie-0.2.12/datrie/trie.h
Examining data/libdatrie-0.2.12/datrie/trie-string.c
Examining data/libdatrie-0.2.12/datrie/dstring.c
Examining data/libdatrie-0.2.12/datrie/dstring-private.h
Examining data/libdatrie-0.2.12/datrie/alpha-map.h
Examining data/libdatrie-0.2.12/datrie/typedefs.h
Examining data/libdatrie-0.2.12/datrie/darray.c
Examining data/libdatrie-0.2.12/datrie/tail.h
Examining data/libdatrie-0.2.12/datrie/dstring.h
Examining data/libdatrie-0.2.12/datrie/trie.c
Examining data/libdatrie-0.2.12/datrie/alpha-map.c
Examining data/libdatrie-0.2.12/datrie/trie-private.h
Examining data/libdatrie-0.2.12/datrie/trie-string.h
Examining data/libdatrie-0.2.12/datrie/tail.c
FINAL RESULTS:
data/libdatrie-0.2.12/tools/trietool.c:188:5: [4] (buffer) sprintf:
Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
vsnprintf.
sprintf (full_path_buff, "%s/%s%s", path, name, ext);
data/libdatrie-0.2.12/tests/test_store-retrieve.c:84:5: [3] (random) srand:
This function is not sufficiently random for security-related functions
such as key and nonce creation (CWE-327). Use a more secure technique for
acquiring random values.
srand (time (NULL));
data/libdatrie-0.2.12/datrie/dstring.c:109:5: [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 (dst->val, src->val, (src->str_len + 1) * src->char_size);
data/libdatrie-0.2.12/datrie/dstring.c:129:5: [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 ((char *)dst->val + (dst->char_size * dst->str_len), src->val,
data/libdatrie-0.2.12/datrie/dstring.c:143:5: [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 ((char *)ds->val + (ds->char_size * ds->str_len), data,
data/libdatrie-0.2.12/datrie/dstring.c:157:5: [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 ((char *)ds->val + (ds->char_size * ds->str_len), data,
data/libdatrie-0.2.12/datrie/fileutils.c:41:14: [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.
unsigned char buff[4];
data/libdatrie-0.2.12/datrie/fileutils.c:54:14: [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.
unsigned char buff[4];
data/libdatrie-0.2.12/datrie/fileutils.c:67:14: [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.
unsigned char buff[2];
data/libdatrie-0.2.12/datrie/fileutils.c:80:14: [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.
unsigned char buff[2];
data/libdatrie-0.2.12/datrie/trie.c:166:17: [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).
trie_file = fopen (path, "rb");
data/libdatrie-0.2.12/datrie/trie.c:252:12: [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 = fopen (path, "wb+");
data/libdatrie-0.2.12/tests/test_store-retrieve.c:91:38: [2] (buffer) wchar_t:
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.
printf ("Deleting '%ls'\n", (wchar_t *)dict_src[i].key);
data/libdatrie-0.2.12/tests/test_store-retrieve.c:93:50: [2] (buffer) wchar_t:
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.
printf ("Failed to delete '%ls'\n", (wchar_t *)dict_src[i].key);
data/libdatrie-0.2.12/tools/trietool.c:158:18: [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.
unsigned char b[4];
data/libdatrie-0.2.12/tools/trietool.c:165:9: [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 ((char *) &in[res], b, 4);
data/libdatrie-0.2.12/tools/trietool.c:195:5: [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 buff[256];
data/libdatrie-0.2.12/tools/trietool.c:207:15: [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).
sbm = fopen (path_name, "r");
data/libdatrie-0.2.12/tools/trietool.c:336:35: [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).
data = (opt_idx < argc) ? atoi (argv[opt_idx++]) : TRIE_DATA_ERROR;
data/libdatrie-0.2.12/tools/trietool.c:355:5: [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 line[256];
data/libdatrie-0.2.12/tools/trietool.c:388:13: [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_name, "r");
data/libdatrie-0.2.12/tools/trietool.c:412:42: [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).
data_val = ('\0' != *data) ? atoi (data) : TRIE_DATA_ERROR;
data/libdatrie-0.2.12/tools/trietool.c:457:5: [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 line[256];
data/libdatrie-0.2.12/tools/trietool.c:490:13: [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_name, "r");
data/libdatrie-0.2.12/tools/trietool.c:547:5: [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 key_locale[1024];
data/libdatrie-0.2.12/datrie/alpha-map.c:546:40: [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).
alpha_str = (AlphaChar *) malloc ((strlen ((const char *)str) + 1)
data/libdatrie-0.2.12/datrie/tail.c:239:39: [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).
length = t->tails[i].suffix ? strlen ((const char *)t->tails[i].suffix)
data/libdatrie-0.2.12/datrie/trie-string.c:91:40: [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).
str, strlen ((const char *)str));
data/libdatrie-0.2.12/datrie/trie.c:1040:46: [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).
* (strlen ((const char *)tail_str)
data/libdatrie-0.2.12/datrie/trie.c:1057:38: [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).
* (key_len + strlen ((const char *)tail_str) + 1)
data/libdatrie-0.2.12/tools/trietool.c:116:23: [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_t in_left = strlen (in);
data/libdatrie-0.2.12/tools/trietool.c:186:21: [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).
int full_size = strlen (path) + strlen (name) + strlen (ext) + 2;
data/libdatrie-0.2.12/tools/trietool.c:186:37: [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 full_size = strlen (path) + strlen (name) + strlen (ext) + 2;
data/libdatrie-0.2.12/tools/trietool.c:186:53: [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 full_size = strlen (path) + strlen (name) + strlen (ext) + 2;
data/libdatrie-0.2.12/tools/trietool.c:621:13: [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).
p = s + strlen (s) - 1;
ANALYSIS SUMMARY:
Hits = 35
Lines analyzed = 6878 in approximately 0.29 seconds (24074 lines/second)
Physical Source Lines of Code (SLOC) = 3908
Hits@level = [0] 192 [1] 10 [2] 23 [3] 1 [4] 1 [5] 0
Hits@level+ = [0+] 227 [1+] 35 [2+] 25 [3+] 2 [4+] 1 [5+] 0
Hits/KSLOC@level+ = [0+] 58.086 [1+] 8.95599 [2+] 6.39713 [3+] 0.511771 [4+] 0.255885 [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.