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/libexttextcat-3.4.5/src/createfp.c
Examining data/libexttextcat-3.4.5/src/fingerprint.h
Examining data/libexttextcat-3.4.5/src/textcat.c
Examining data/libexttextcat-3.4.5/src/utf8misc.c
Examining data/libexttextcat-3.4.5/src/utf8misc.h
Examining data/libexttextcat-3.4.5/src/common.c
Examining data/libexttextcat-3.4.5/src/common.h
Examining data/libexttextcat-3.4.5/src/wg_mempool.c
Examining data/libexttextcat-3.4.5/src/textcat_properties.h
Examining data/libexttextcat-3.4.5/src/constants.h
Examining data/libexttextcat-3.4.5/src/fingerprint.c
Examining data/libexttextcat-3.4.5/src/exttextcat-version.h
Examining data/libexttextcat-3.4.5/src/textcat.h
Examining data/libexttextcat-3.4.5/src/common_impl.h
Examining data/libexttextcat-3.4.5/src/wg_mempool.h
Examining data/libexttextcat-3.4.5/src/testtextcat.c

FINAL RESULTS:

data/libexttextcat-3.4.5/src/fingerprint.c:645:9:  [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(h->fprint[i].str, tmp2.str);
data/libexttextcat-3.4.5/src/fingerprint.c:693:9:  [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(h->fprint[cnt].str, line);
data/libexttextcat-3.4.5/src/textcat.c:181:5:  [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(finger_print_file_name, prefix);
data/libexttextcat-3.4.5/src/textcat.c:234:9:  [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(finger_print_file_name, segment[0]);
data/libexttextcat-3.4.5/src/fingerprint.c:89:5:  [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 str[MAXNGRAMSIZE + 1];
data/libexttextcat-3.4.5/src/fingerprint.c:106:5:  [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 str[MAXNGRAMSIZE + 1];
data/libexttextcat-3.4.5/src/fingerprint.c:185:13:  [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(&tmp, &heap[parent], sizeof(entry_t));
data/libexttextcat-3.4.5/src/fingerprint.c:186:13:  [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(&heap[parent], &heap[child], sizeof(entry_t));
data/libexttextcat-3.4.5/src/fingerprint.c:187:13:  [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(&heap[child], &tmp, sizeof(entry_t));
data/libexttextcat-3.4.5/src/fingerprint.c:211:13:  [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(&tmp, &heap[parent], sizeof(entry_t));
data/libexttextcat-3.4.5/src/fingerprint.c:212:13:  [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(&heap[parent], &heap[child], sizeof(entry_t));
data/libexttextcat-3.4.5/src/fingerprint.c:213:13:  [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(&heap[child], &tmp, sizeof(entry_t));
data/libexttextcat-3.4.5/src/fingerprint.c:229:9:  [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(&(heap[t->size]), item, sizeof(entry_t));
data/libexttextcat-3.4.5/src/fingerprint.c:242:5:  [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(&(heap[0]), item, sizeof(entry_t));
data/libexttextcat-3.4.5/src/fingerprint.c:256:5:  [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(item, p, sizeof(entry_t));
data/libexttextcat-3.4.5/src/fingerprint.c:258:9:  [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(&(t->heap[0]), &(t->heap[t->size - 1]), sizeof(entry_t));
data/libexttextcat-3.4.5/src/fingerprint.c:435:5:  [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 n[MAXNGRAMSIZE + 1];
data/libexttextcat-3.4.5/src/fingerprint.c:500:5:  [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 n[MAXNGRAMSIZE + 1];
data/libexttextcat-3.4.5/src/fingerprint.c:661:5:  [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[1024];
data/libexttextcat-3.4.5/src/fingerprint.c:664:10:  [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).
    fp = fopen(fname, "r");
data/libexttextcat-3.4.5/src/fingerprint.c:716:5:  [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(tmp, h->fprint, h->size * sizeof(ngram_t));
data/libexttextcat-3.4.5/src/textcat.c:76:5:  [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[MAXOUTPUTSIZE];
data/libexttextcat-3.4.5/src/textcat.c:153:5:  [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[1024];
data/libexttextcat-3.4.5/src/textcat.c:156:10:  [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).
    fp = fopen(conffile, "r");
data/libexttextcat-3.4.5/src/textcat.c:186:9:  [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 *segment[4];
data/libexttextcat-3.4.5/src/textcat.c:363:13:  [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(&candidates[cnt - 1], &candidates[i], sizeof(candidate_t));
data/libexttextcat-3.4.5/src/createfp.c:107:27:  [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 (fp_Create(h, buf, strlen(buf), 400) == 0)
data/libexttextcat-3.4.5/src/fingerprint.c:162:5:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
    strncpy(entry->str, p, MAXNGRAMSIZE);
data/libexttextcat-3.4.5/src/fingerprint.c:688:13:  [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).
        if (strlen(line) > MAXNGRAMSIZE)
data/libexttextcat-3.4.5/src/testtextcat.c:115:39:  [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).
    result = textcat_Classify(h, buf, strlen(buf) + 1);
data/libexttextcat-3.4.5/src/textcat.c:176:19:  [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).
    prefix_size = strlen(prefix);
data/libexttextcat-3.4.5/src/textcat.c:216:30:  [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).
        while (prefix_size + strlen(segment[0]) > finger_print_file_name_size)
data/libexttextcat-3.4.5/src/wg_mempool.c:196:25:  [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).
    else if (block->p + strlen(str) + 1 >= block->pend)

ANALYSIS SUMMARY:

Hits = 33
Lines analyzed = 2788 in approximately 0.38 seconds (7360 lines/second)
Physical Source Lines of Code (SLOC) = 1478
Hits@level = [0]   8 [1]   7 [2]  22 [3]   0 [4]   4 [5]   0
Hits@level+ = [0+]  41 [1+]  33 [2+]  26 [3+]   4 [4+]   4 [5+]   0
Hits/KSLOC@level+ = [0+] 27.7402 [1+] 22.3275 [2+] 17.5913 [3+] 2.70636 [4+] 2.70636 [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.