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/gip-1.7.0-1/src/lib_regexp.h
Examining data/gip-1.7.0-1/src/gui_mainwindow.h
Examining data/gip-1.7.0-1/src/lib_ipv4.c
Examining data/gip-1.7.0-1/src/gui_prefixlist.h
Examining data/gip-1.7.0-1/src/main.cc
Examining data/gip-1.7.0-1/src/gui_aboutbox.cc
Examining data/gip-1.7.0-1/src/lib_regexp.c
Examining data/gip-1.7.0-1/src/lib_ipv4.h
Examining data/gip-1.7.0-1/src/gui_ipv4_analyzer.h
Examining data/gip-1.7.0-1/src/gui_aboutbox.h
Examining data/gip-1.7.0-1/src/gui_mainwindow.cc
Examining data/gip-1.7.0-1/src/gui_prefixlist.cc
Examining data/gip-1.7.0-1/src/gui_ipv4_subnet_splitter.h
Examining data/gip-1.7.0-1/src/gui_ipv4_subnet_calculator.h
Examining data/gip-1.7.0-1/src/gui_ipv4_analyzer.cc
Examining data/gip-1.7.0-1/src/gui_ipv4_subnet_calculator.cc
Examining data/gip-1.7.0-1/src/gui_ipv4_subnet_splitter.cc
Examining data/gip-1.7.0-1/src/dispatcher.cc
Examining data/gip-1.7.0-1/src/dispatcher.h

FINAL RESULTS:

data/gip-1.7.0-1/src/gui_aboutbox.cc:35:3:  [4] (format) snprintf:
  If format strings can be influenced by an attacker, they can be exploited,
  and note that sprintf variations do not always \0-terminate (CWE-134). Use
  a constant for the format specification.
  snprintf(version, 2047, format, VERSION, SUBVERSION);
data/gip-1.7.0-1/src/gui_aboutbox.cc:32:3:  [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 version[2048];
data/gip-1.7.0-1/src/gui_ipv4_analyzer.cc:368:3:  [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 text[16];
data/gip-1.7.0-1/src/gui_ipv4_analyzer.cc:383:3:  [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 text[100];
data/gip-1.7.0-1/src/gui_ipv4_analyzer.cc:396:3:  [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 text[100];
data/gip-1.7.0-1/src/gui_ipv4_analyzer.cc:411:3:  [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 text[100];
data/gip-1.7.0-1/src/gui_ipv4_analyzer.cc:424:3:  [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 network_text[16];
data/gip-1.7.0-1/src/gui_ipv4_analyzer.cc:438:3:  [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 broadcast_text[16];
data/gip-1.7.0-1/src/gui_ipv4_analyzer.cc:452:3:  [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 binary[36];
data/gip-1.7.0-1/src/gui_ipv4_analyzer.cc:467:3:  [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 binary[36];
data/gip-1.7.0-1/src/gui_ipv4_analyzer.cc:482:3:  [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 binary[36];
data/gip-1.7.0-1/src/gui_ipv4_analyzer.cc:497:3:  [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 binary[36];
data/gip-1.7.0-1/src/gui_ipv4_analyzer.cc:512:3:  [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 hex[20];
data/gip-1.7.0-1/src/gui_ipv4_analyzer.cc:527:3:  [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 hex[20];
data/gip-1.7.0-1/src/gui_ipv4_analyzer.cc:542:3:  [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 hex[20];
data/gip-1.7.0-1/src/gui_ipv4_analyzer.cc:557:3:  [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 hex[20];
data/gip-1.7.0-1/src/gui_ipv4_analyzer.cc:590:3:  [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          ip[36] = "";
data/gip-1.7.0-1/src/gui_ipv4_analyzer.cc:632:3:  [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               mask[36] = "";
data/gip-1.7.0-1/src/gui_ipv4_subnet_calculator.cc:131:3:  [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          ip[36] = "";
data/gip-1.7.0-1/src/gui_ipv4_subnet_splitter.cc:140:3:  [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          ip[36] = "";
data/gip-1.7.0-1/src/gui_prefixlist.cc:57:3:  [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          net_txt[36];
data/gip-1.7.0-1/src/gui_prefixlist.cc:58:3:  [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          len_txt[4];
data/gip-1.7.0-1/src/gui_prefixlist.cc:59:3:  [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          mask_txt[36];
data/gip-1.7.0-1/src/lib_ipv4.c:48:3:  [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       *matches[1+4];
data/gip-1.7.0-1/src/lib_ipv4.c:54:25:  [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).
    unsigned int byte = atoi(matches[i]);
data/gip-1.7.0-1/src/lib_ipv4.c:86:3:  [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       *matches[1+2];
data/gip-1.7.0-1/src/lib_ipv4.c:93:31:  [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).
  err &= ipv4_check_prefixlen(atoi(matches[1]));  // Check prefixlen.
data/gip-1.7.0-1/src/lib_ipv4.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       *matches[1+4];
data/gip-1.7.0-1/src/lib_ipv4.c:114:25:  [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).
    unsigned int byte = atoi(matches[i]);
data/gip-1.7.0-1/src/lib_ipv4.c:133:3:  [2] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf. Risk is low because the source has a constant maximum length.
  sprintf(ip, "%i.%i.%i.%i", ((ip_int >> 24) & 0x000000FF),
data/gip-1.7.0-1/src/lib_ipv4.c:165:5:  [2] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf. Risk is low because the source has a constant maximum length.
    sprintf(ip_hex, "%02X", (ip_int >> (i * 8)) & 0xFF);
data/gip-1.7.0-1/src/lib_regexp.c:69:5:  [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(pstr, to, tolen);
data/gip-1.7.0-1/src/lib_regexp.c:143:3:  [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        regexp[1024];
data/gip-1.7.0-1/src/lib_regexp.c:170:3:  [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(result, string + pmatch[1].rm_so, (pmatch[1].rm_eo - pmatch[1].rm_so));
data/gip-1.7.0-1/src/lib_regexp.c:223:5:  [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(result, string + pmatch[i].rm_so, len);
data/gip-1.7.0-1/src/lib_regexp.c:258:3:  [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        regexp[1024];
data/gip-1.7.0-1/src/lib_ipv4.c:166:15:  [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).
    ip_hex += strlen(ip_hex);
data/gip-1.7.0-1/src/lib_regexp.c:60:19:  [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).
  int   fromlen = strlen(from);
data/gip-1.7.0-1/src/lib_regexp.c:61:19:  [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).
  int   tolen   = strlen(to);
data/gip-1.7.0-1/src/lib_regexp.c:148:3:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
  strncpy(regexp, pattern, 1023);
data/gip-1.7.0-1/src/lib_regexp.c:261:3:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
  strncpy(regexp, pattern, 1023);

ANALYSIS SUMMARY:

Hits = 41
Lines analyzed = 3184 in approximately 0.16 seconds (19702 lines/second)
Physical Source Lines of Code (SLOC) = 2003
Hits@level = [0]  84 [1]   5 [2]  35 [3]   0 [4]   1 [5]   0
Hits@level+ = [0+] 125 [1+]  41 [2+]  36 [3+]   1 [4+]   1 [5+]   0
Hits/KSLOC@level+ = [0+] 62.4064 [1+] 20.4693 [2+] 17.973 [3+] 0.499251 [4+] 0.499251 [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.